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-rw-r--r--sound/soc/sh/rcar/Makefile3
-rw-r--r--sound/soc/sh/rcar/adg.c715
-rw-r--r--sound/soc/sh/rcar/cmd.c195
-rw-r--r--sound/soc/sh/rcar/core.c2030
-rw-r--r--sound/soc/sh/rcar/ctu.c393
-rw-r--r--sound/soc/sh/rcar/debugfs.c96
-rw-r--r--sound/soc/sh/rcar/dma.c905
-rw-r--r--sound/soc/sh/rcar/dvc.c396
-rw-r--r--sound/soc/sh/rcar/gen.c492
-rw-r--r--sound/soc/sh/rcar/mix.c360
-rw-r--r--sound/soc/sh/rcar/rsnd.h915
-rw-r--r--sound/soc/sh/rcar/src.c735
-rw-r--r--sound/soc/sh/rcar/ssi.c1255
-rw-r--r--sound/soc/sh/rcar/ssiu.c600
14 files changed, 9090 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/Makefile b/sound/soc/sh/rcar/Makefile
new file mode 100644
index 000000000..d07eccfa3
--- /dev/null
+++ b/sound/soc/sh/rcar/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+snd-soc-rcar-objs := core.o gen.o dma.o adg.o ssi.o ssiu.o src.o ctu.o mix.o dvc.o cmd.o debugfs.o
+obj-$(CONFIG_SND_SOC_RCAR) += snd-soc-rcar.o
diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c
new file mode 100644
index 000000000..5f1e72edf
--- /dev/null
+++ b/sound/soc/sh/rcar/adg.c
@@ -0,0 +1,715 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Helper routines for R-Car sound ADG.
+//
+// Copyright (C) 2013 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include "rsnd.h"
+
+#define CLKA 0
+#define CLKB 1
+#define CLKC 2
+#define CLKI 3
+#define CLKMAX 4
+
+#define CLKOUT 0
+#define CLKOUT1 1
+#define CLKOUT2 2
+#define CLKOUT3 3
+#define CLKOUTMAX 4
+
+#define BRRx_MASK(x) (0x3FF & x)
+
+static struct rsnd_mod_ops adg_ops = {
+ .name = "adg",
+};
+
+struct rsnd_adg {
+ struct clk *clk[CLKMAX];
+ struct clk *clkout[CLKOUTMAX];
+ struct clk *null_clk;
+ struct clk_onecell_data onecell;
+ struct rsnd_mod mod;
+ int clk_rate[CLKMAX];
+ u32 flags;
+ u32 ckr;
+ u32 rbga;
+ u32 rbgb;
+
+ int rbga_rate_for_441khz; /* RBGA */
+ int rbgb_rate_for_48khz; /* RBGB */
+};
+
+#define LRCLK_ASYNC (1 << 0)
+#define AUDIO_OUT_48 (1 << 1)
+
+#define for_each_rsnd_clk(pos, adg, i) \
+ for (i = 0; \
+ (i < CLKMAX) && \
+ ((pos) = adg->clk[i]); \
+ i++)
+#define for_each_rsnd_clkout(pos, adg, i) \
+ for (i = 0; \
+ (i < CLKOUTMAX) && \
+ ((pos) = adg->clkout[i]); \
+ i++)
+#define rsnd_priv_to_adg(priv) ((struct rsnd_adg *)(priv)->adg)
+
+static const char * const clk_name[] = {
+ [CLKA] = "clk_a",
+ [CLKB] = "clk_b",
+ [CLKC] = "clk_c",
+ [CLKI] = "clk_i",
+};
+
+static u32 rsnd_adg_calculate_rbgx(unsigned long div)
+{
+ int i;
+
+ if (!div)
+ return 0;
+
+ for (i = 3; i >= 0; i--) {
+ int ratio = 2 << (i * 2);
+ if (0 == (div % ratio))
+ return (u32)((i << 8) | ((div / ratio) - 1));
+ }
+
+ return ~0;
+}
+
+static u32 rsnd_adg_ssi_ws_timing_gen2(struct rsnd_dai_stream *io)
+{
+ struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
+ int id = rsnd_mod_id(ssi_mod);
+ int ws = id;
+
+ if (rsnd_ssi_is_pin_sharing(io)) {
+ switch (id) {
+ case 1:
+ case 2:
+ case 9:
+ ws = 0;
+ break;
+ case 4:
+ ws = 3;
+ break;
+ case 8:
+ ws = 7;
+ break;
+ }
+ }
+
+ return (0x6 + ws) << 8;
+}
+
+static void __rsnd_adg_get_timesel_ratio(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io,
+ unsigned int target_rate,
+ unsigned int *target_val,
+ unsigned int *target_en)
+{
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int sel;
+ unsigned int val, en;
+ unsigned int min, diff;
+ unsigned int sel_rate[] = {
+ adg->clk_rate[CLKA], /* 0000: CLKA */
+ adg->clk_rate[CLKB], /* 0001: CLKB */
+ adg->clk_rate[CLKC], /* 0010: CLKC */
+ adg->rbga_rate_for_441khz, /* 0011: RBGA */
+ adg->rbgb_rate_for_48khz, /* 0100: RBGB */
+ };
+
+ min = ~0;
+ val = 0;
+ en = 0;
+ for (sel = 0; sel < ARRAY_SIZE(sel_rate); sel++) {
+ int idx = 0;
+ int step = 2;
+ int div;
+
+ if (!sel_rate[sel])
+ continue;
+
+ for (div = 2; div <= 98304; div += step) {
+ diff = abs(target_rate - sel_rate[sel] / div);
+ if (min > diff) {
+ val = (sel << 8) | idx;
+ min = diff;
+ en = 1 << (sel + 1); /* fixme */
+ }
+
+ /*
+ * step of 0_0000 / 0_0001 / 0_1101
+ * are out of order
+ */
+ if ((idx > 2) && (idx % 2))
+ step *= 2;
+ if (idx == 0x1c) {
+ div += step;
+ step *= 2;
+ }
+ idx++;
+ }
+ }
+
+ if (min == ~0) {
+ dev_err(dev, "no Input clock\n");
+ return;
+ }
+
+ *target_val = val;
+ if (target_en)
+ *target_en = en;
+}
+
+static void rsnd_adg_get_timesel_ratio(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io,
+ unsigned int in_rate,
+ unsigned int out_rate,
+ u32 *in, u32 *out, u32 *en)
+{
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ unsigned int target_rate;
+ u32 *target_val;
+ u32 _in;
+ u32 _out;
+ u32 _en;
+
+ /* default = SSI WS */
+ _in =
+ _out = rsnd_adg_ssi_ws_timing_gen2(io);
+
+ target_rate = 0;
+ target_val = NULL;
+ _en = 0;
+ if (runtime->rate != in_rate) {
+ target_rate = out_rate;
+ target_val = &_out;
+ } else if (runtime->rate != out_rate) {
+ target_rate = in_rate;
+ target_val = &_in;
+ }
+
+ if (target_rate)
+ __rsnd_adg_get_timesel_ratio(priv, io,
+ target_rate,
+ target_val, &_en);
+
+ if (in)
+ *in = _in;
+ if (out)
+ *out = _out;
+ if (en)
+ *en = _en;
+}
+
+int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_mod *cmd_mod,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(cmd_mod);
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ struct rsnd_mod *adg_mod = rsnd_mod_get(adg);
+ int id = rsnd_mod_id(cmd_mod);
+ int shift = (id % 2) ? 16 : 0;
+ u32 mask, val;
+
+ rsnd_adg_get_timesel_ratio(priv, io,
+ rsnd_src_get_in_rate(priv, io),
+ rsnd_src_get_out_rate(priv, io),
+ NULL, &val, NULL);
+
+ val = val << shift;
+ mask = 0x0f1f << shift;
+
+ rsnd_mod_bset(adg_mod, CMDOUT_TIMSEL, mask, val);
+
+ return 0;
+}
+
+int rsnd_adg_set_src_timesel_gen2(struct rsnd_mod *src_mod,
+ struct rsnd_dai_stream *io,
+ unsigned int in_rate,
+ unsigned int out_rate)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(src_mod);
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ struct rsnd_mod *adg_mod = rsnd_mod_get(adg);
+ u32 in, out;
+ u32 mask, en;
+ int id = rsnd_mod_id(src_mod);
+ int shift = (id % 2) ? 16 : 0;
+
+ rsnd_mod_confirm_src(src_mod);
+
+ rsnd_adg_get_timesel_ratio(priv, io,
+ in_rate, out_rate,
+ &in, &out, &en);
+
+ in = in << shift;
+ out = out << shift;
+ mask = 0x0f1f << shift;
+
+ rsnd_mod_bset(adg_mod, SRCIN_TIMSEL(id / 2), mask, in);
+ rsnd_mod_bset(adg_mod, SRCOUT_TIMSEL(id / 2), mask, out);
+
+ if (en)
+ rsnd_mod_bset(adg_mod, DIV_EN, en, en);
+
+ return 0;
+}
+
+static void rsnd_adg_set_ssi_clk(struct rsnd_mod *ssi_mod, u32 val)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ struct rsnd_mod *adg_mod = rsnd_mod_get(adg);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int id = rsnd_mod_id(ssi_mod);
+ int shift = (id % 4) * 8;
+ u32 mask = 0xFF << shift;
+
+ rsnd_mod_confirm_ssi(ssi_mod);
+
+ val = val << shift;
+
+ /*
+ * SSI 8 is not connected to ADG.
+ * it works with SSI 7
+ */
+ if (id == 8)
+ return;
+
+ rsnd_mod_bset(adg_mod, AUDIO_CLK_SEL(id / 4), mask, val);
+
+ dev_dbg(dev, "AUDIO_CLK_SEL is 0x%x\n", val);
+}
+
+int rsnd_adg_clk_query(struct rsnd_priv *priv, unsigned int rate)
+{
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ int i;
+ int sel_table[] = {
+ [CLKA] = 0x1,
+ [CLKB] = 0x2,
+ [CLKC] = 0x3,
+ [CLKI] = 0x0,
+ };
+
+ /*
+ * find suitable clock from
+ * AUDIO_CLKA/AUDIO_CLKB/AUDIO_CLKC/AUDIO_CLKI.
+ */
+ for (i = 0; i < CLKMAX; i++)
+ if (rate == adg->clk_rate[i])
+ return sel_table[i];
+
+ /*
+ * find divided clock from BRGA/BRGB
+ */
+ if (rate == adg->rbga_rate_for_441khz)
+ return 0x10;
+
+ if (rate == adg->rbgb_rate_for_48khz)
+ return 0x20;
+
+ return -EIO;
+}
+
+int rsnd_adg_ssi_clk_stop(struct rsnd_mod *ssi_mod)
+{
+ rsnd_adg_set_ssi_clk(ssi_mod, 0);
+
+ return 0;
+}
+
+int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *ssi_mod, unsigned int rate)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_mod *adg_mod = rsnd_mod_get(adg);
+ int data;
+ u32 ckr = 0;
+
+ data = rsnd_adg_clk_query(priv, rate);
+ if (data < 0)
+ return data;
+
+ rsnd_adg_set_ssi_clk(ssi_mod, data);
+
+ if (rsnd_flags_has(adg, LRCLK_ASYNC)) {
+ if (rsnd_flags_has(adg, AUDIO_OUT_48))
+ ckr = 0x80000000;
+ } else {
+ if (0 == (rate % 8000))
+ ckr = 0x80000000;
+ }
+
+ rsnd_mod_bset(adg_mod, BRGCKR, 0x80770000, adg->ckr | ckr);
+ rsnd_mod_write(adg_mod, BRRA, adg->rbga);
+ rsnd_mod_write(adg_mod, BRRB, adg->rbgb);
+
+ dev_dbg(dev, "CLKOUT is based on BRG%c (= %dHz)\n",
+ (ckr) ? 'B' : 'A',
+ (ckr) ? adg->rbgb_rate_for_48khz :
+ adg->rbga_rate_for_441khz);
+
+ return 0;
+}
+
+void rsnd_adg_clk_control(struct rsnd_priv *priv, int enable)
+{
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ struct clk *clk;
+ int i;
+
+ for_each_rsnd_clk(clk, adg, i) {
+ if (enable) {
+ clk_prepare_enable(clk);
+
+ /*
+ * We shouldn't use clk_get_rate() under
+ * atomic context. Let's keep it when
+ * rsnd_adg_clk_enable() was called
+ */
+ adg->clk_rate[i] = clk_get_rate(clk);
+ } else {
+ clk_disable_unprepare(clk);
+ }
+ }
+}
+
+static struct clk *rsnd_adg_create_null_clk(struct rsnd_priv *priv,
+ const char * const name,
+ const char *parent)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct clk *clk;
+
+ clk = clk_register_fixed_rate(dev, name, parent, 0, 0);
+ if (IS_ERR_OR_NULL(clk)) {
+ dev_err(dev, "create null clk error\n");
+ return ERR_CAST(clk);
+ }
+
+ return clk;
+}
+
+static struct clk *rsnd_adg_null_clk_get(struct rsnd_priv *priv)
+{
+ struct rsnd_adg *adg = priv->adg;
+
+ if (!adg->null_clk) {
+ static const char * const name = "rsnd_adg_null";
+
+ adg->null_clk = rsnd_adg_create_null_clk(priv, name, NULL);
+ }
+
+ return adg->null_clk;
+}
+
+static void rsnd_adg_null_clk_clean(struct rsnd_priv *priv)
+{
+ struct rsnd_adg *adg = priv->adg;
+
+ if (adg->null_clk)
+ clk_unregister_fixed_rate(adg->null_clk);
+}
+
+static int rsnd_adg_get_clkin(struct rsnd_priv *priv)
+{
+ struct rsnd_adg *adg = priv->adg;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct clk *clk;
+ int i;
+
+ for (i = 0; i < CLKMAX; i++) {
+ clk = devm_clk_get(dev, clk_name[i]);
+
+ if (IS_ERR_OR_NULL(clk))
+ clk = rsnd_adg_null_clk_get(priv);
+ if (IS_ERR_OR_NULL(clk))
+ goto err;
+
+ adg->clk[i] = clk;
+ }
+
+ return 0;
+
+err:
+ dev_err(dev, "adg clock IN get failed\n");
+
+ rsnd_adg_null_clk_clean(priv);
+
+ return -EIO;
+}
+
+static void rsnd_adg_unregister_clkout(struct rsnd_priv *priv)
+{
+ struct rsnd_adg *adg = priv->adg;
+ struct clk *clk;
+ int i;
+
+ for_each_rsnd_clkout(clk, adg, i)
+ clk_unregister_fixed_rate(clk);
+}
+
+static int rsnd_adg_get_clkout(struct rsnd_priv *priv)
+{
+ struct rsnd_adg *adg = priv->adg;
+ struct clk *clk;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *np = dev->of_node;
+ struct property *prop;
+ u32 ckr, rbgx, rbga, rbgb;
+ u32 rate, div;
+#define REQ_SIZE 2
+ u32 req_rate[REQ_SIZE] = {};
+ uint32_t count = 0;
+ unsigned long req_48kHz_rate, req_441kHz_rate;
+ int i, req_size;
+ const char *parent_clk_name = NULL;
+ static const char * const clkout_name[] = {
+ [CLKOUT] = "audio_clkout",
+ [CLKOUT1] = "audio_clkout1",
+ [CLKOUT2] = "audio_clkout2",
+ [CLKOUT3] = "audio_clkout3",
+ };
+ int brg_table[] = {
+ [CLKA] = 0x0,
+ [CLKB] = 0x1,
+ [CLKC] = 0x4,
+ [CLKI] = 0x2,
+ };
+
+ ckr = 0;
+ rbga = 2; /* default 1/6 */
+ rbgb = 2; /* default 1/6 */
+
+ /*
+ * ADG supports BRRA/BRRB output only
+ * this means all clkout0/1/2/3 will be same rate
+ */
+ prop = of_find_property(np, "clock-frequency", NULL);
+ if (!prop)
+ goto rsnd_adg_get_clkout_end;
+
+ req_size = prop->length / sizeof(u32);
+ if (req_size > REQ_SIZE) {
+ dev_err(dev, "too many clock-frequency\n");
+ return -EINVAL;
+ }
+
+ of_property_read_u32_array(np, "clock-frequency", req_rate, req_size);
+ req_48kHz_rate = 0;
+ req_441kHz_rate = 0;
+ for (i = 0; i < req_size; i++) {
+ if (0 == (req_rate[i] % 44100))
+ req_441kHz_rate = req_rate[i];
+ if (0 == (req_rate[i] % 48000))
+ req_48kHz_rate = req_rate[i];
+ }
+
+ if (req_rate[0] % 48000 == 0)
+ rsnd_flags_set(adg, AUDIO_OUT_48);
+
+ if (of_get_property(np, "clkout-lr-asynchronous", NULL))
+ rsnd_flags_set(adg, LRCLK_ASYNC);
+
+ /*
+ * This driver is assuming that AUDIO_CLKA/AUDIO_CLKB/AUDIO_CLKC
+ * have 44.1kHz or 48kHz base clocks for now.
+ *
+ * SSI itself can divide parent clock by 1/1 - 1/16
+ * see
+ * rsnd_adg_ssi_clk_try_start()
+ * rsnd_ssi_master_clk_start()
+ */
+ adg->rbga_rate_for_441khz = 0;
+ adg->rbgb_rate_for_48khz = 0;
+ for_each_rsnd_clk(clk, adg, i) {
+ rate = clk_get_rate(clk);
+
+ if (0 == rate) /* not used */
+ continue;
+
+ /* RBGA */
+ if (!adg->rbga_rate_for_441khz && (0 == rate % 44100)) {
+ div = 6;
+ if (req_441kHz_rate)
+ div = rate / req_441kHz_rate;
+ rbgx = rsnd_adg_calculate_rbgx(div);
+ if (BRRx_MASK(rbgx) == rbgx) {
+ rbga = rbgx;
+ adg->rbga_rate_for_441khz = rate / div;
+ ckr |= brg_table[i] << 20;
+ if (req_441kHz_rate &&
+ !rsnd_flags_has(adg, AUDIO_OUT_48))
+ parent_clk_name = __clk_get_name(clk);
+ }
+ }
+
+ /* RBGB */
+ if (!adg->rbgb_rate_for_48khz && (0 == rate % 48000)) {
+ div = 6;
+ if (req_48kHz_rate)
+ div = rate / req_48kHz_rate;
+ rbgx = rsnd_adg_calculate_rbgx(div);
+ if (BRRx_MASK(rbgx) == rbgx) {
+ rbgb = rbgx;
+ adg->rbgb_rate_for_48khz = rate / div;
+ ckr |= brg_table[i] << 16;
+ if (req_48kHz_rate &&
+ rsnd_flags_has(adg, AUDIO_OUT_48))
+ parent_clk_name = __clk_get_name(clk);
+ }
+ }
+ }
+
+ /*
+ * ADG supports BRRA/BRRB output only.
+ * this means all clkout0/1/2/3 will be * same rate
+ */
+
+ of_property_read_u32(np, "#clock-cells", &count);
+ /*
+ * for clkout
+ */
+ if (!count) {
+ clk = clk_register_fixed_rate(dev, clkout_name[CLKOUT],
+ parent_clk_name, 0, req_rate[0]);
+ if (IS_ERR_OR_NULL(clk))
+ goto err;
+
+ adg->clkout[CLKOUT] = clk;
+ of_clk_add_provider(np, of_clk_src_simple_get, clk);
+ }
+ /*
+ * for clkout0/1/2/3
+ */
+ else {
+ for (i = 0; i < CLKOUTMAX; i++) {
+ clk = clk_register_fixed_rate(dev, clkout_name[i],
+ parent_clk_name, 0,
+ req_rate[0]);
+ if (IS_ERR_OR_NULL(clk))
+ goto err;
+
+ adg->clkout[i] = clk;
+ }
+ adg->onecell.clks = adg->clkout;
+ adg->onecell.clk_num = CLKOUTMAX;
+ of_clk_add_provider(np, of_clk_src_onecell_get,
+ &adg->onecell);
+ }
+
+rsnd_adg_get_clkout_end:
+ adg->ckr = ckr;
+ adg->rbga = rbga;
+ adg->rbgb = rbgb;
+
+ return 0;
+
+err:
+ dev_err(dev, "adg clock OUT get failed\n");
+
+ rsnd_adg_unregister_clkout(priv);
+
+ return -EIO;
+}
+
+#if defined(DEBUG) || defined(CONFIG_DEBUG_FS)
+__printf(3, 4)
+static void dbg_msg(struct device *dev, struct seq_file *m,
+ const char *fmt, ...)
+{
+ char msg[128];
+ va_list args;
+
+ va_start(args, fmt);
+ vsnprintf(msg, sizeof(msg), fmt, args);
+ va_end(args);
+
+ if (m)
+ seq_puts(m, msg);
+ else
+ dev_dbg(dev, "%s", msg);
+}
+
+void rsnd_adg_clk_dbg_info(struct rsnd_priv *priv, struct seq_file *m)
+{
+ struct rsnd_adg *adg = rsnd_priv_to_adg(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct clk *clk;
+ int i;
+
+ for_each_rsnd_clk(clk, adg, i)
+ dbg_msg(dev, m, "%s : %pa : %ld\n",
+ clk_name[i], clk, clk_get_rate(clk));
+
+ dbg_msg(dev, m, "BRGCKR = 0x%08x, BRRA/BRRB = 0x%x/0x%x\n",
+ adg->ckr, adg->rbga, adg->rbgb);
+ dbg_msg(dev, m, "BRGA (for 44100 base) = %d\n", adg->rbga_rate_for_441khz);
+ dbg_msg(dev, m, "BRGB (for 48000 base) = %d\n", adg->rbgb_rate_for_48khz);
+
+ /*
+ * Actual CLKOUT will be exchanged in rsnd_adg_ssi_clk_try_start()
+ * by BRGCKR::BRGCKR_31
+ */
+ for_each_rsnd_clkout(clk, adg, i)
+ dbg_msg(dev, m, "clkout %d : %pa : %ld\n", i,
+ clk, clk_get_rate(clk));
+}
+#else
+#define rsnd_adg_clk_dbg_info(priv, m)
+#endif
+
+int rsnd_adg_probe(struct rsnd_priv *priv)
+{
+ struct rsnd_adg *adg;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int ret;
+
+ adg = devm_kzalloc(dev, sizeof(*adg), GFP_KERNEL);
+ if (!adg)
+ return -ENOMEM;
+
+ ret = rsnd_mod_init(priv, &adg->mod, &adg_ops,
+ NULL, 0, 0);
+ if (ret)
+ return ret;
+
+ priv->adg = adg;
+
+ ret = rsnd_adg_get_clkin(priv);
+ if (ret)
+ return ret;
+
+ ret = rsnd_adg_get_clkout(priv);
+ if (ret)
+ return ret;
+
+ rsnd_adg_clk_enable(priv);
+ rsnd_adg_clk_dbg_info(priv, NULL);
+
+ return 0;
+}
+
+void rsnd_adg_remove(struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *np = dev->of_node;
+
+ rsnd_adg_unregister_clkout(priv);
+
+ of_clk_del_provider(np);
+
+ rsnd_adg_clk_disable(priv);
+
+ /* It should be called after rsnd_adg_clk_disable() */
+ rsnd_adg_null_clk_clean(priv);
+}
diff --git a/sound/soc/sh/rcar/cmd.c b/sound/soc/sh/rcar/cmd.c
new file mode 100644
index 000000000..329e6ab1b
--- /dev/null
+++ b/sound/soc/sh/rcar/cmd.c
@@ -0,0 +1,195 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Renesas R-Car CMD support
+//
+// Copyright (C) 2015 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include "rsnd.h"
+
+struct rsnd_cmd {
+ struct rsnd_mod mod;
+};
+
+#define CMD_NAME "cmd"
+
+#define rsnd_cmd_nr(priv) ((priv)->cmd_nr)
+#define for_each_rsnd_cmd(pos, priv, i) \
+ for ((i) = 0; \
+ ((i) < rsnd_cmd_nr(priv)) && \
+ ((pos) = (struct rsnd_cmd *)(priv)->cmd + i); \
+ i++)
+
+static int rsnd_cmd_init(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
+ struct rsnd_mod *mix = rsnd_io_to_mod_mix(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ u32 data;
+ static const u32 path[] = {
+ [1] = 1 << 0,
+ [5] = 1 << 8,
+ [6] = 1 << 12,
+ [9] = 1 << 15,
+ };
+
+ if (!mix && !dvc)
+ return 0;
+
+ if (ARRAY_SIZE(path) < rsnd_mod_id(mod) + 1)
+ return -ENXIO;
+
+ if (mix) {
+ struct rsnd_dai *rdai;
+ int i;
+
+ /*
+ * it is assuming that integrater is well understanding about
+ * data path. Here doesn't check impossible connection,
+ * like src2 + src5
+ */
+ data = 0;
+ for_each_rsnd_dai(rdai, priv, i) {
+ struct rsnd_dai_stream *tio = &rdai->playback;
+ struct rsnd_mod *src = rsnd_io_to_mod_src(tio);
+
+ if (mix == rsnd_io_to_mod_mix(tio))
+ data |= path[rsnd_mod_id(src)];
+
+ tio = &rdai->capture;
+ src = rsnd_io_to_mod_src(tio);
+ if (mix == rsnd_io_to_mod_mix(tio))
+ data |= path[rsnd_mod_id(src)];
+ }
+
+ } else {
+ struct rsnd_mod *src = rsnd_io_to_mod_src(io);
+
+ static const u8 cmd_case[] = {
+ [0] = 0x3,
+ [1] = 0x3,
+ [2] = 0x4,
+ [3] = 0x1,
+ [4] = 0x2,
+ [5] = 0x4,
+ [6] = 0x1,
+ [9] = 0x2,
+ };
+
+ if (unlikely(!src))
+ return -EIO;
+
+ data = path[rsnd_mod_id(src)] |
+ cmd_case[rsnd_mod_id(src)] << 16;
+ }
+
+ dev_dbg(dev, "ctu/mix path = 0x%08x\n", data);
+
+ rsnd_mod_write(mod, CMD_ROUTE_SLCT, data);
+ rsnd_mod_write(mod, CMD_BUSIF_MODE, rsnd_get_busif_shift(io, mod) | 1);
+ rsnd_mod_write(mod, CMD_BUSIF_DALIGN, rsnd_get_dalign(mod, io));
+
+ rsnd_adg_set_cmd_timsel_gen2(mod, io);
+
+ return 0;
+}
+
+static int rsnd_cmd_start(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ rsnd_mod_write(mod, CMD_CTRL, 0x10);
+
+ return 0;
+}
+
+static int rsnd_cmd_stop(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ rsnd_mod_write(mod, CMD_CTRL, 0);
+
+ return 0;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void rsnd_cmd_debug_info(struct seq_file *m,
+ struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU,
+ 0x180 + rsnd_mod_id_raw(mod) * 0x20, 0x30);
+}
+#define DEBUG_INFO .debug_info = rsnd_cmd_debug_info
+#else
+#define DEBUG_INFO
+#endif
+
+static struct rsnd_mod_ops rsnd_cmd_ops = {
+ .name = CMD_NAME,
+ .init = rsnd_cmd_init,
+ .start = rsnd_cmd_start,
+ .stop = rsnd_cmd_stop,
+ .get_status = rsnd_mod_get_status,
+ DEBUG_INFO
+};
+
+static struct rsnd_mod *rsnd_cmd_mod_get(struct rsnd_priv *priv, int id)
+{
+ if (WARN_ON(id < 0 || id >= rsnd_cmd_nr(priv)))
+ id = 0;
+
+ return rsnd_mod_get((struct rsnd_cmd *)(priv->cmd) + id);
+}
+int rsnd_cmd_attach(struct rsnd_dai_stream *io, int id)
+{
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct rsnd_mod *mod = rsnd_cmd_mod_get(priv, id);
+
+ return rsnd_dai_connect(mod, io, mod->type);
+}
+
+int rsnd_cmd_probe(struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_cmd *cmd;
+ int i, nr;
+
+ /* This driver doesn't support Gen1 at this point */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ /* same number as DVC */
+ nr = priv->dvc_nr;
+ if (!nr)
+ return 0;
+
+ cmd = devm_kcalloc(dev, nr, sizeof(*cmd), GFP_KERNEL);
+ if (!cmd)
+ return -ENOMEM;
+
+ priv->cmd_nr = nr;
+ priv->cmd = cmd;
+
+ for_each_rsnd_cmd(cmd, priv, i) {
+ int ret = rsnd_mod_init(priv, rsnd_mod_get(cmd),
+ &rsnd_cmd_ops, NULL,
+ RSND_MOD_CMD, i);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+void rsnd_cmd_remove(struct rsnd_priv *priv)
+{
+ struct rsnd_cmd *cmd;
+ int i;
+
+ for_each_rsnd_cmd(cmd, priv, i) {
+ rsnd_mod_quit(rsnd_mod_get(cmd));
+ }
+}
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
new file mode 100644
index 000000000..7e380d71b
--- /dev/null
+++ b/sound/soc/sh/rcar/core.c
@@ -0,0 +1,2030 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Renesas R-Car SRU/SCU/SSIU/SSI support
+//
+// Copyright (C) 2013 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+// Based on fsi.c
+// Kuninori Morimoto <morimoto.kuninori@renesas.com>
+
+/*
+ * Renesas R-Car sound device structure
+ *
+ * Gen1
+ *
+ * SRU : Sound Routing Unit
+ * - SRC : Sampling Rate Converter
+ * - CMD
+ * - CTU : Channel Count Conversion Unit
+ * - MIX : Mixer
+ * - DVC : Digital Volume and Mute Function
+ * - SSI : Serial Sound Interface
+ *
+ * Gen2
+ *
+ * SCU : Sampling Rate Converter Unit
+ * - SRC : Sampling Rate Converter
+ * - CMD
+ * - CTU : Channel Count Conversion Unit
+ * - MIX : Mixer
+ * - DVC : Digital Volume and Mute Function
+ * SSIU : Serial Sound Interface Unit
+ * - SSI : Serial Sound Interface
+ */
+
+/*
+ * driver data Image
+ *
+ * rsnd_priv
+ * |
+ * | ** this depends on Gen1/Gen2
+ * |
+ * +- gen
+ * |
+ * | ** these depend on data path
+ * | ** gen and platform data control it
+ * |
+ * +- rdai[0]
+ * | | sru ssiu ssi
+ * | +- playback -> [mod] -> [mod] -> [mod] -> ...
+ * | |
+ * | | sru ssiu ssi
+ * | +- capture -> [mod] -> [mod] -> [mod] -> ...
+ * |
+ * +- rdai[1]
+ * | | sru ssiu ssi
+ * | +- playback -> [mod] -> [mod] -> [mod] -> ...
+ * | |
+ * | | sru ssiu ssi
+ * | +- capture -> [mod] -> [mod] -> [mod] -> ...
+ * ...
+ * |
+ * | ** these control ssi
+ * |
+ * +- ssi
+ * | |
+ * | +- ssi[0]
+ * | +- ssi[1]
+ * | +- ssi[2]
+ * | ...
+ * |
+ * | ** these control src
+ * |
+ * +- src
+ * |
+ * +- src[0]
+ * +- src[1]
+ * +- src[2]
+ * ...
+ *
+ *
+ * for_each_rsnd_dai(xx, priv, xx)
+ * rdai[0] => rdai[1] => rdai[2] => ...
+ *
+ * for_each_rsnd_mod(xx, rdai, xx)
+ * [mod] => [mod] => [mod] => ...
+ *
+ * rsnd_dai_call(xxx, fn )
+ * [mod]->fn() -> [mod]->fn() -> [mod]->fn()...
+ *
+ */
+
+#include <linux/pm_runtime.h>
+#include "rsnd.h"
+
+#define RSND_RATES SNDRV_PCM_RATE_8000_192000
+#define RSND_FMTS (SNDRV_PCM_FMTBIT_S8 |\
+ SNDRV_PCM_FMTBIT_S16_LE |\
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+static const struct of_device_id rsnd_of_match[] = {
+ { .compatible = "renesas,rcar_sound-gen1", .data = (void *)RSND_GEN1 },
+ { .compatible = "renesas,rcar_sound-gen2", .data = (void *)RSND_GEN2 },
+ { .compatible = "renesas,rcar_sound-gen3", .data = (void *)RSND_GEN3 },
+ /* Special Handling */
+ { .compatible = "renesas,rcar_sound-r8a77990", .data = (void *)(RSND_GEN3 | RSND_SOC_E) },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rsnd_of_match);
+
+/*
+ * rsnd_mod functions
+ */
+void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
+{
+ if (mod->type != type) {
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dev_warn(dev, "%s is not your expected module\n",
+ rsnd_mod_name(mod));
+ }
+}
+
+struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ if (!mod || !mod->ops || !mod->ops->dma_req)
+ return NULL;
+
+ return mod->ops->dma_req(io, mod);
+}
+
+#define MOD_NAME_NUM 5
+#define MOD_NAME_SIZE 16
+char *rsnd_mod_name(struct rsnd_mod *mod)
+{
+ static char names[MOD_NAME_NUM][MOD_NAME_SIZE];
+ static int num;
+ char *name = names[num];
+
+ num++;
+ if (num >= MOD_NAME_NUM)
+ num = 0;
+
+ /*
+ * Let's use same char to avoid pointlessness memory
+ * Thus, rsnd_mod_name() should be used immediately
+ * Don't keep pointer
+ */
+ if ((mod)->ops->id_sub) {
+ snprintf(name, MOD_NAME_SIZE, "%s[%d%d]",
+ mod->ops->name,
+ rsnd_mod_id(mod),
+ rsnd_mod_id_sub(mod));
+ } else {
+ snprintf(name, MOD_NAME_SIZE, "%s[%d]",
+ mod->ops->name,
+ rsnd_mod_id(mod));
+ }
+
+ return name;
+}
+
+u32 *rsnd_mod_get_status(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ enum rsnd_mod_type type)
+{
+ return &mod->status;
+}
+
+int rsnd_mod_id_raw(struct rsnd_mod *mod)
+{
+ return mod->id;
+}
+
+int rsnd_mod_id(struct rsnd_mod *mod)
+{
+ if ((mod)->ops->id)
+ return (mod)->ops->id(mod);
+
+ return rsnd_mod_id_raw(mod);
+}
+
+int rsnd_mod_id_sub(struct rsnd_mod *mod)
+{
+ if ((mod)->ops->id_sub)
+ return (mod)->ops->id_sub(mod);
+
+ return 0;
+}
+
+int rsnd_mod_init(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ struct rsnd_mod_ops *ops,
+ struct clk *clk,
+ enum rsnd_mod_type type,
+ int id)
+{
+ int ret = clk_prepare(clk);
+
+ if (ret)
+ return ret;
+
+ mod->id = id;
+ mod->ops = ops;
+ mod->type = type;
+ mod->clk = clk;
+ mod->priv = priv;
+
+ return 0;
+}
+
+void rsnd_mod_quit(struct rsnd_mod *mod)
+{
+ clk_unprepare(mod->clk);
+ mod->clk = NULL;
+}
+
+void rsnd_mod_interrupt(struct rsnd_mod *mod,
+ void (*callback)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io))
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dai *rdai;
+ int i;
+
+ for_each_rsnd_dai(rdai, priv, i) {
+ struct rsnd_dai_stream *io = &rdai->playback;
+
+ if (mod == io->mod[mod->type])
+ callback(mod, io);
+
+ io = &rdai->capture;
+ if (mod == io->mod[mod->type])
+ callback(mod, io);
+ }
+}
+
+int rsnd_io_is_working(struct rsnd_dai_stream *io)
+{
+ /* see rsnd_dai_stream_init/quit() */
+ if (io->substream)
+ return snd_pcm_running(io->substream);
+
+ return 0;
+}
+
+int rsnd_runtime_channel_original_with_params(struct rsnd_dai_stream *io,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+
+ /*
+ * params will be added when refine
+ * see
+ * __rsnd_soc_hw_rule_rate()
+ * __rsnd_soc_hw_rule_channels()
+ */
+ if (params)
+ return params_channels(params);
+ else if (runtime)
+ return runtime->channels;
+ return 0;
+}
+
+int rsnd_runtime_channel_after_ctu_with_params(struct rsnd_dai_stream *io,
+ struct snd_pcm_hw_params *params)
+{
+ int chan = rsnd_runtime_channel_original_with_params(io, params);
+ struct rsnd_mod *ctu_mod = rsnd_io_to_mod_ctu(io);
+
+ if (ctu_mod) {
+ u32 converted_chan = rsnd_io_converted_chan(io);
+
+ /*
+ * !! Note !!
+ *
+ * converted_chan will be used for CTU,
+ * or TDM Split mode.
+ * User shouldn't use CTU with TDM Split mode.
+ */
+ if (rsnd_runtime_is_tdm_split(io)) {
+ struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io));
+
+ dev_err(dev, "CTU and TDM Split should be used\n");
+ }
+
+ if (converted_chan)
+ return converted_chan;
+ }
+
+ return chan;
+}
+
+int rsnd_channel_normalization(int chan)
+{
+ if (WARN_ON((chan > 8) || (chan < 0)))
+ return 0;
+
+ /* TDM Extend Mode needs 8ch */
+ if (chan == 6)
+ chan = 8;
+
+ return chan;
+}
+
+int rsnd_runtime_channel_for_ssi_with_params(struct rsnd_dai_stream *io,
+ struct snd_pcm_hw_params *params)
+{
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ int chan = rsnd_io_is_play(io) ?
+ rsnd_runtime_channel_after_ctu_with_params(io, params) :
+ rsnd_runtime_channel_original_with_params(io, params);
+
+ /* Use Multi SSI */
+ if (rsnd_runtime_is_multi_ssi(io))
+ chan /= rsnd_rdai_ssi_lane_get(rdai);
+
+ return rsnd_channel_normalization(chan);
+}
+
+int rsnd_runtime_is_multi_ssi(struct rsnd_dai_stream *io)
+{
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ int lane = rsnd_rdai_ssi_lane_get(rdai);
+ int chan = rsnd_io_is_play(io) ?
+ rsnd_runtime_channel_after_ctu(io) :
+ rsnd_runtime_channel_original(io);
+
+ return (chan > 2) && (lane > 1);
+}
+
+int rsnd_runtime_is_tdm(struct rsnd_dai_stream *io)
+{
+ return rsnd_runtime_channel_for_ssi(io) >= 6;
+}
+
+int rsnd_runtime_is_tdm_split(struct rsnd_dai_stream *io)
+{
+ return !!rsnd_flags_has(io, RSND_STREAM_TDM_SPLIT);
+}
+
+/*
+ * ADINR function
+ */
+u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ switch (snd_pcm_format_width(runtime->format)) {
+ case 8:
+ return 16 << 16;
+ case 16:
+ return 8 << 16;
+ case 24:
+ return 0 << 16;
+ }
+
+ dev_warn(dev, "not supported sample bits\n");
+
+ return 0;
+}
+
+/*
+ * DALIGN function
+ */
+u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
+{
+ static const u32 dalign_values[8] = {
+ 0x76543210, 0x00000032, 0x00007654, 0x00000076,
+ 0xfedcba98, 0x000000ba, 0x0000fedc, 0x000000fe,
+ };
+ int id = 0;
+ struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io);
+ struct rsnd_mod *target;
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ u32 dalign;
+
+ /*
+ * *Hardware* L/R and *Software* L/R are inverted for 16bit data.
+ * 31..16 15...0
+ * HW: [L ch] [R ch]
+ * SW: [R ch] [L ch]
+ * We need to care about inversion timing to control
+ * Playback/Capture correctly.
+ * The point is [DVC] needs *Hardware* L/R, [MEM] needs *Software* L/R
+ *
+ * sL/R : software L/R
+ * hL/R : hardware L/R
+ * (*) : conversion timing
+ *
+ * Playback
+ * sL/R (*) hL/R hL/R hL/R hL/R hL/R
+ * [MEM] -> [SRC] -> [DVC] -> [CMD] -> [SSIU] -> [SSI] -> codec
+ *
+ * Capture
+ * hL/R hL/R hL/R hL/R hL/R (*) sL/R
+ * codec -> [SSI] -> [SSIU] -> [SRC] -> [DVC] -> [CMD] -> [MEM]
+ */
+ if (rsnd_io_is_play(io)) {
+ struct rsnd_mod *src = rsnd_io_to_mod_src(io);
+
+ target = src ? src : ssiu;
+ } else {
+ struct rsnd_mod *cmd = rsnd_io_to_mod_cmd(io);
+
+ target = cmd ? cmd : ssiu;
+ }
+
+ if (mod == ssiu)
+ id = rsnd_mod_id_sub(mod);
+
+ dalign = dalign_values[id];
+
+ if (mod == target && snd_pcm_format_width(runtime->format) == 16) {
+ /* Target mod needs inverted DALIGN when 16bit */
+ dalign = (dalign & 0xf0f0f0f0) >> 4 |
+ (dalign & 0x0f0f0f0f) << 4;
+ }
+
+ return dalign;
+}
+
+u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod)
+{
+ static const enum rsnd_mod_type playback_mods[] = {
+ RSND_MOD_SRC,
+ RSND_MOD_CMD,
+ RSND_MOD_SSIU,
+ };
+ static const enum rsnd_mod_type capture_mods[] = {
+ RSND_MOD_CMD,
+ RSND_MOD_SRC,
+ RSND_MOD_SSIU,
+ };
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_mod *tmod = NULL;
+ const enum rsnd_mod_type *mods =
+ rsnd_io_is_play(io) ?
+ playback_mods : capture_mods;
+ int i;
+
+ /*
+ * This is needed for 24bit data
+ * We need to shift 8bit
+ *
+ * Linux 24bit data is located as 0x00******
+ * HW 24bit data is located as 0x******00
+ *
+ */
+ if (snd_pcm_format_width(runtime->format) != 24)
+ return 0;
+
+ for (i = 0; i < ARRAY_SIZE(playback_mods); i++) {
+ tmod = rsnd_io_to_mod(io, mods[i]);
+ if (tmod)
+ break;
+ }
+
+ if (tmod != mod)
+ return 0;
+
+ if (rsnd_io_is_play(io))
+ return (0 << 20) | /* shift to Left */
+ (8 << 16); /* 8bit */
+ else
+ return (1 << 20) | /* shift to Right */
+ (8 << 16); /* 8bit */
+}
+
+/*
+ * rsnd_dai functions
+ */
+struct rsnd_mod *rsnd_mod_next(int *iterator,
+ struct rsnd_dai_stream *io,
+ enum rsnd_mod_type *array,
+ int array_size)
+{
+ int max = array ? array_size : RSND_MOD_MAX;
+
+ for (; *iterator < max; (*iterator)++) {
+ enum rsnd_mod_type type = (array) ? array[*iterator] : *iterator;
+ struct rsnd_mod *mod = rsnd_io_to_mod(io, type);
+
+ if (mod)
+ return mod;
+ }
+
+ return NULL;
+}
+
+static enum rsnd_mod_type rsnd_mod_sequence[][RSND_MOD_MAX] = {
+ {
+ /* CAPTURE */
+ RSND_MOD_AUDMAPP,
+ RSND_MOD_AUDMA,
+ RSND_MOD_DVC,
+ RSND_MOD_MIX,
+ RSND_MOD_CTU,
+ RSND_MOD_CMD,
+ RSND_MOD_SRC,
+ RSND_MOD_SSIU,
+ RSND_MOD_SSIM3,
+ RSND_MOD_SSIM2,
+ RSND_MOD_SSIM1,
+ RSND_MOD_SSIP,
+ RSND_MOD_SSI,
+ }, {
+ /* PLAYBACK */
+ RSND_MOD_AUDMAPP,
+ RSND_MOD_AUDMA,
+ RSND_MOD_SSIM3,
+ RSND_MOD_SSIM2,
+ RSND_MOD_SSIM1,
+ RSND_MOD_SSIP,
+ RSND_MOD_SSI,
+ RSND_MOD_SSIU,
+ RSND_MOD_DVC,
+ RSND_MOD_MIX,
+ RSND_MOD_CTU,
+ RSND_MOD_CMD,
+ RSND_MOD_SRC,
+ },
+};
+
+static int rsnd_status_update(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod, enum rsnd_mod_type type,
+ int shift, int add, int timing)
+{
+ u32 *status = mod->ops->get_status(mod, io, type);
+ u32 mask = 0xF << shift;
+ u8 val = (*status >> shift) & 0xF;
+ u8 next_val = (val + add) & 0xF;
+ int func_call = (val == timing);
+
+ /* no status update */
+ if (add == 0 || shift == 28)
+ return 1;
+
+ if (next_val == 0xF) /* underflow case */
+ func_call = -1;
+ else
+ *status = (*status & ~mask) + (next_val << shift);
+
+ return func_call;
+}
+
+#define rsnd_dai_call(fn, io, param...) \
+({ \
+ struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io)); \
+ struct rsnd_mod *mod; \
+ int is_play = rsnd_io_is_play(io); \
+ int ret = 0, i; \
+ enum rsnd_mod_type *types = rsnd_mod_sequence[is_play]; \
+ for_each_rsnd_mod_arrays(i, mod, io, types, RSND_MOD_MAX) { \
+ int tmp = 0; \
+ int func_call = rsnd_status_update(io, mod, types[i], \
+ __rsnd_mod_shift_##fn, \
+ __rsnd_mod_add_##fn, \
+ __rsnd_mod_call_##fn); \
+ if (func_call > 0 && (mod)->ops->fn) \
+ tmp = (mod)->ops->fn(mod, io, param); \
+ if (unlikely(func_call < 0) || \
+ unlikely(tmp && (tmp != -EPROBE_DEFER))) \
+ dev_err(dev, "%s : %s error (%d, %d)\n", \
+ rsnd_mod_name(mod), #fn, tmp, func_call);\
+ ret |= tmp; \
+ } \
+ ret; \
+})
+
+int rsnd_dai_connect(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ enum rsnd_mod_type type)
+{
+ struct rsnd_priv *priv;
+ struct device *dev;
+
+ if (!mod)
+ return -EIO;
+
+ if (io->mod[type] == mod)
+ return 0;
+
+ if (io->mod[type])
+ return -EINVAL;
+
+ priv = rsnd_mod_to_priv(mod);
+ dev = rsnd_priv_to_dev(priv);
+
+ io->mod[type] = mod;
+
+ dev_dbg(dev, "%s is connected to io (%s)\n",
+ rsnd_mod_name(mod),
+ rsnd_io_is_play(io) ? "Playback" : "Capture");
+
+ return 0;
+}
+
+static void rsnd_dai_disconnect(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ enum rsnd_mod_type type)
+{
+ io->mod[type] = NULL;
+}
+
+int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai,
+ int max_channels)
+{
+ if (max_channels > 0)
+ rdai->max_channels = max_channels;
+
+ return rdai->max_channels;
+}
+
+int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai,
+ int ssi_lane)
+{
+ if (ssi_lane > 0)
+ rdai->ssi_lane = ssi_lane;
+
+ return rdai->ssi_lane;
+}
+
+int rsnd_rdai_width_ctrl(struct rsnd_dai *rdai, int width)
+{
+ if (width > 0)
+ rdai->chan_width = width;
+
+ return rdai->chan_width;
+}
+
+struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
+{
+ if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
+ return NULL;
+
+ return priv->rdai + id;
+}
+
+static struct snd_soc_dai_driver
+*rsnd_daidrv_get(struct rsnd_priv *priv, int id)
+{
+ if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
+ return NULL;
+
+ return priv->daidrv + id;
+}
+
+#define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
+static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
+{
+ struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
+
+ return rsnd_rdai_get(priv, dai->id);
+}
+
+/*
+ * rsnd_soc_dai functions
+ */
+void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
+{
+ struct snd_pcm_substream *substream = io->substream;
+
+ /*
+ * this function should be called...
+ *
+ * - if rsnd_dai_pointer_update() returns true
+ * - without spin lock
+ */
+
+ snd_pcm_period_elapsed(substream);
+}
+
+static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
+ struct snd_pcm_substream *substream)
+{
+ io->substream = substream;
+}
+
+static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
+{
+ io->substream = NULL;
+}
+
+static
+struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+
+ return asoc_rtd_to_cpu(rtd, 0);
+}
+
+static
+struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
+ struct snd_pcm_substream *substream)
+{
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ return &rdai->playback;
+ else
+ return &rdai->capture;
+}
+
+static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+ int ret;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ ret = rsnd_dai_call(init, io, priv);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ ret = rsnd_dai_call(start, io, priv);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ ret = rsnd_dai_call(irq, io, priv, 1);
+ if (ret < 0)
+ goto dai_trigger_end;
+
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ ret = rsnd_dai_call(irq, io, priv, 0);
+
+ ret |= rsnd_dai_call(stop, io, priv);
+
+ ret |= rsnd_dai_call(quit, io, priv);
+
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+dai_trigger_end:
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return ret;
+}
+
+static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+
+ /* set clock master for audio interface */
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+ case SND_SOC_DAIFMT_BC_FC:
+ rdai->clk_master = 0;
+ break;
+ case SND_SOC_DAIFMT_BP_FP:
+ rdai->clk_master = 1; /* cpu is master */
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* set format */
+ rdai->bit_clk_inv = 0;
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ rdai->sys_delay = 0;
+ rdai->data_alignment = 0;
+ rdai->frm_clk_inv = 0;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ case SND_SOC_DAIFMT_DSP_B:
+ rdai->sys_delay = 1;
+ rdai->data_alignment = 0;
+ rdai->frm_clk_inv = 1;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ rdai->sys_delay = 1;
+ rdai->data_alignment = 1;
+ rdai->frm_clk_inv = 1;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ rdai->sys_delay = 0;
+ rdai->data_alignment = 0;
+ rdai->frm_clk_inv = 1;
+ break;
+ }
+
+ /* set clock inversion */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_IF:
+ rdai->frm_clk_inv = !rdai->frm_clk_inv;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ rdai->bit_clk_inv = !rdai->bit_clk_inv;
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ rdai->bit_clk_inv = !rdai->bit_clk_inv;
+ rdai->frm_clk_inv = !rdai->frm_clk_inv;
+ break;
+ case SND_SOC_DAIFMT_NB_NF:
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
+ u32 tx_mask, u32 rx_mask,
+ int slots, int slot_width)
+{
+ struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ switch (slot_width) {
+ case 16:
+ case 24:
+ case 32:
+ break;
+ default:
+ /* use default */
+ slot_width = 32;
+ }
+
+ switch (slots) {
+ case 2:
+ /* TDM Split Mode */
+ case 6:
+ case 8:
+ /* TDM Extend Mode */
+ rsnd_rdai_channels_set(rdai, slots);
+ rsnd_rdai_ssi_lane_set(rdai, 1);
+ rsnd_rdai_width_set(rdai, slot_width);
+ break;
+ default:
+ dev_err(dev, "unsupported TDM slots (%d)\n", slots);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static unsigned int rsnd_soc_hw_channels_list[] = {
+ 2, 6, 8,
+};
+
+static unsigned int rsnd_soc_hw_rate_list[] = {
+ 8000,
+ 11025,
+ 16000,
+ 22050,
+ 32000,
+ 44100,
+ 48000,
+ 64000,
+ 88200,
+ 96000,
+ 176400,
+ 192000,
+};
+
+static int rsnd_soc_hw_rule(struct rsnd_dai *rdai,
+ unsigned int *list, int list_num,
+ struct snd_interval *baseline, struct snd_interval *iv)
+{
+ struct snd_interval p;
+ unsigned int rate;
+ int i;
+
+ snd_interval_any(&p);
+ p.min = UINT_MAX;
+ p.max = 0;
+
+ for (i = 0; i < list_num; i++) {
+
+ if (!snd_interval_test(iv, list[i]))
+ continue;
+
+ rate = rsnd_ssi_clk_query(rdai,
+ baseline->min, list[i], NULL);
+ if (rate > 0) {
+ p.min = min(p.min, list[i]);
+ p.max = max(p.max, list[i]);
+ }
+
+ rate = rsnd_ssi_clk_query(rdai,
+ baseline->max, list[i], NULL);
+ if (rate > 0) {
+ p.min = min(p.min, list[i]);
+ p.max = max(p.max, list[i]);
+ }
+ }
+
+ return snd_interval_refine(iv, &p);
+}
+
+static int rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval ic;
+ struct rsnd_dai_stream *io = rule->private;
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+
+ /*
+ * possible sampling rate limitation is same as
+ * 2ch if it supports multi ssi
+ * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init())
+ */
+ ic = *ic_;
+ ic.min =
+ ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
+
+ return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_rate_list,
+ ARRAY_SIZE(rsnd_soc_hw_rate_list),
+ &ic, ir);
+}
+
+static int rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval ic;
+ struct rsnd_dai_stream *io = rule->private;
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+
+ /*
+ * possible sampling rate limitation is same as
+ * 2ch if it supports multi ssi
+ * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init())
+ */
+ ic = *ic_;
+ ic.min =
+ ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params);
+
+ return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_channels_list,
+ ARRAY_SIZE(rsnd_soc_hw_channels_list),
+ ir, &ic);
+}
+
+static const struct snd_pcm_hardware rsnd_pcm_hardware = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID,
+ .buffer_bytes_max = 64 * 1024,
+ .period_bytes_min = 32,
+ .period_bytes_max = 8192,
+ .periods_min = 1,
+ .periods_max = 32,
+ .fifo_size = 256,
+};
+
+static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+ struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned int max_channels = rsnd_rdai_channels_get(rdai);
+ int i;
+
+ rsnd_dai_stream_init(io, substream);
+
+ /*
+ * Channel Limitation
+ * It depends on Platform design
+ */
+ constraint->list = rsnd_soc_hw_channels_list;
+ constraint->count = 0;
+ constraint->mask = 0;
+
+ for (i = 0; i < ARRAY_SIZE(rsnd_soc_hw_channels_list); i++) {
+ if (rsnd_soc_hw_channels_list[i] > max_channels)
+ break;
+ constraint->count = i + 1;
+ }
+
+ snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
+
+ snd_pcm_hw_constraint_list(runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS, constraint);
+
+ snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+
+ /*
+ * Sampling Rate / Channel Limitation
+ * It depends on Clock Master Mode
+ */
+ if (rsnd_rdai_is_clk_master(rdai)) {
+ int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+
+ snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+ rsnd_soc_hw_rule_rate,
+ is_play ? &rdai->playback : &rdai->capture,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+ snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+ rsnd_soc_hw_rule_channels,
+ is_play ? &rdai->playback : &rdai->capture,
+ SNDRV_PCM_HW_PARAM_RATE, -1);
+ }
+
+ return 0;
+}
+
+static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+
+ /*
+ * call rsnd_dai_call without spinlock
+ */
+ rsnd_dai_call(cleanup, io, priv);
+
+ rsnd_dai_stream_quit(io);
+}
+
+static int rsnd_soc_dai_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+
+ return rsnd_dai_call(prepare, io, priv);
+}
+
+static u64 rsnd_soc_dai_formats[] = {
+ /*
+ * 1st Priority
+ *
+ * Well tested formats.
+ * Select below from Sound Card, not auto
+ * SND_SOC_DAIFMT_CBC_CFC
+ * SND_SOC_DAIFMT_CBP_CFP
+ */
+ SND_SOC_POSSIBLE_DAIFMT_I2S |
+ SND_SOC_POSSIBLE_DAIFMT_RIGHT_J |
+ SND_SOC_POSSIBLE_DAIFMT_LEFT_J |
+ SND_SOC_POSSIBLE_DAIFMT_NB_NF |
+ SND_SOC_POSSIBLE_DAIFMT_NB_IF |
+ SND_SOC_POSSIBLE_DAIFMT_IB_NF |
+ SND_SOC_POSSIBLE_DAIFMT_IB_IF,
+ /*
+ * 2nd Priority
+ *
+ * Supported, but not well tested
+ */
+ SND_SOC_POSSIBLE_DAIFMT_DSP_A |
+ SND_SOC_POSSIBLE_DAIFMT_DSP_B,
+};
+
+static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
+ .startup = rsnd_soc_dai_startup,
+ .shutdown = rsnd_soc_dai_shutdown,
+ .trigger = rsnd_soc_dai_trigger,
+ .set_fmt = rsnd_soc_dai_set_fmt,
+ .set_tdm_slot = rsnd_soc_set_dai_tdm_slot,
+ .prepare = rsnd_soc_dai_prepare,
+ .auto_selectable_formats = rsnd_soc_dai_formats,
+ .num_auto_selectable_formats = ARRAY_SIZE(rsnd_soc_dai_formats),
+};
+
+static void rsnd_parse_tdm_split_mode(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io,
+ struct device_node *dai_np)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *ssiu_np = rsnd_ssiu_of_node(priv);
+ struct device_node *np;
+ int is_play = rsnd_io_is_play(io);
+ int i;
+
+ if (!ssiu_np)
+ return;
+
+ /*
+ * This driver assumes that it is TDM Split mode
+ * if it includes ssiu node
+ */
+ for (i = 0;; i++) {
+ struct device_node *node = is_play ?
+ of_parse_phandle(dai_np, "playback", i) :
+ of_parse_phandle(dai_np, "capture", i);
+
+ if (!node)
+ break;
+
+ for_each_child_of_node(ssiu_np, np) {
+ if (np == node) {
+ rsnd_flags_set(io, RSND_STREAM_TDM_SPLIT);
+ dev_dbg(dev, "%s is part of TDM Split\n", io->name);
+ }
+ }
+
+ of_node_put(node);
+ }
+
+ of_node_put(ssiu_np);
+}
+
+static void rsnd_parse_connect_simple(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io,
+ struct device_node *dai_np)
+{
+ if (!rsnd_io_to_mod_ssi(io))
+ return;
+
+ rsnd_parse_tdm_split_mode(priv, io, dai_np);
+}
+
+static void rsnd_parse_connect_graph(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io,
+ struct device_node *endpoint)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *remote_node;
+
+ if (!rsnd_io_to_mod_ssi(io))
+ return;
+
+ remote_node = of_graph_get_remote_port_parent(endpoint);
+
+ /* HDMI0 */
+ if (strstr(remote_node->full_name, "hdmi@fead0000")) {
+ rsnd_flags_set(io, RSND_STREAM_HDMI0);
+ dev_dbg(dev, "%s connected to HDMI0\n", io->name);
+ }
+
+ /* HDMI1 */
+ if (strstr(remote_node->full_name, "hdmi@feae0000")) {
+ rsnd_flags_set(io, RSND_STREAM_HDMI1);
+ dev_dbg(dev, "%s connected to HDMI1\n", io->name);
+ }
+
+ rsnd_parse_tdm_split_mode(priv, io, endpoint);
+
+ of_node_put(remote_node);
+}
+
+void rsnd_parse_connect_common(struct rsnd_dai *rdai, char *name,
+ struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id),
+ struct device_node *node,
+ struct device_node *playback,
+ struct device_node *capture)
+{
+ struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *np;
+ int i;
+
+ if (!node)
+ return;
+
+ i = 0;
+ for_each_child_of_node(node, np) {
+ struct rsnd_mod *mod;
+
+ i = rsnd_node_fixed_index(dev, np, name, i);
+ if (i < 0) {
+ of_node_put(np);
+ break;
+ }
+
+ mod = mod_get(priv, i);
+
+ if (np == playback)
+ rsnd_dai_connect(mod, &rdai->playback, mod->type);
+ if (np == capture)
+ rsnd_dai_connect(mod, &rdai->capture, mod->type);
+ i++;
+ }
+
+ of_node_put(node);
+}
+
+int rsnd_node_fixed_index(struct device *dev, struct device_node *node, char *name, int idx)
+{
+ char node_name[16];
+
+ /*
+ * rsnd is assuming each device nodes are sequential numbering,
+ * but some of them are not.
+ * This function adjusts index for it.
+ *
+ * ex)
+ * Normal case, special case
+ * ssi-0
+ * ssi-1
+ * ssi-2
+ * ssi-3 ssi-3
+ * ssi-4 ssi-4
+ * ...
+ *
+ * assume Max 64 node
+ */
+ for (; idx < 64; idx++) {
+ snprintf(node_name, sizeof(node_name), "%s-%d", name, idx);
+
+ if (strncmp(node_name, of_node_full_name(node), sizeof(node_name)) == 0)
+ return idx;
+ }
+
+ dev_err(dev, "strange node numbering (%s)",
+ of_node_full_name(node));
+ return -EINVAL;
+}
+
+int rsnd_node_count(struct rsnd_priv *priv, struct device_node *node, char *name)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *np;
+ int i;
+
+ i = 0;
+ for_each_child_of_node(node, np) {
+ i = rsnd_node_fixed_index(dev, np, name, i);
+ if (i < 0) {
+ of_node_put(np);
+ return 0;
+ }
+ i++;
+ }
+
+ return i;
+}
+
+static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv,
+ int *is_graph)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *np = dev->of_node;
+ struct device_node *dai_node;
+ struct device_node *ret;
+
+ *is_graph = 0;
+
+ /*
+ * parse both previous dai (= rcar_sound,dai), and
+ * graph dai (= ports/port)
+ */
+ dai_node = of_get_child_by_name(np, RSND_NODE_DAI);
+ if (dai_node) {
+ ret = dai_node;
+ goto of_node_compatible;
+ }
+
+ ret = np;
+
+ dai_node = of_graph_get_next_endpoint(np, NULL);
+ if (dai_node)
+ goto of_node_graph;
+
+ return NULL;
+
+of_node_graph:
+ *is_graph = 1;
+of_node_compatible:
+ of_node_put(dai_node);
+
+ return ret;
+}
+
+
+#define PREALLOC_BUFFER (32 * 1024)
+#define PREALLOC_BUFFER_MAX (32 * 1024)
+
+static int rsnd_preallocate_pages(struct snd_soc_pcm_runtime *rtd,
+ struct rsnd_dai_stream *io,
+ int stream)
+{
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct snd_pcm_substream *substream;
+
+ /*
+ * use Audio-DMAC dev if we can use IPMMU
+ * see
+ * rsnd_dmaen_attach()
+ */
+ if (io->dmac_dev)
+ dev = io->dmac_dev;
+
+ for (substream = rtd->pcm->streams[stream].substream;
+ substream;
+ substream = substream->next) {
+ snd_pcm_set_managed_buffer(substream,
+ SNDRV_DMA_TYPE_DEV,
+ dev,
+ PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
+ }
+
+ return 0;
+}
+
+static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_dai *dai)
+{
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ int ret;
+
+ ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
+ if (ret)
+ return ret;
+
+ ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
+ if (ret)
+ return ret;
+
+ ret = rsnd_preallocate_pages(rtd, &rdai->playback,
+ SNDRV_PCM_STREAM_PLAYBACK);
+ if (ret)
+ return ret;
+
+ ret = rsnd_preallocate_pages(rtd, &rdai->capture,
+ SNDRV_PCM_STREAM_CAPTURE);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void __rsnd_dai_probe(struct rsnd_priv *priv,
+ struct device_node *dai_np,
+ int dai_i)
+{
+ struct rsnd_dai_stream *io_playback;
+ struct rsnd_dai_stream *io_capture;
+ struct snd_soc_dai_driver *drv;
+ struct rsnd_dai *rdai;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int io_i;
+
+ rdai = rsnd_rdai_get(priv, dai_i);
+ drv = rsnd_daidrv_get(priv, dai_i);
+ io_playback = &rdai->playback;
+ io_capture = &rdai->capture;
+
+ snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i);
+
+ rdai->priv = priv;
+ drv->name = rdai->name;
+ drv->ops = &rsnd_soc_dai_ops;
+ drv->pcm_new = rsnd_pcm_new;
+
+ snprintf(io_playback->name, RSND_DAI_NAME_SIZE,
+ "DAI%d Playback", dai_i);
+ drv->playback.rates = RSND_RATES;
+ drv->playback.formats = RSND_FMTS;
+ drv->playback.channels_min = 2;
+ drv->playback.channels_max = 8;
+ drv->playback.stream_name = io_playback->name;
+
+ snprintf(io_capture->name, RSND_DAI_NAME_SIZE,
+ "DAI%d Capture", dai_i);
+ drv->capture.rates = RSND_RATES;
+ drv->capture.formats = RSND_FMTS;
+ drv->capture.channels_min = 2;
+ drv->capture.channels_max = 8;
+ drv->capture.stream_name = io_capture->name;
+
+ io_playback->rdai = rdai;
+ io_capture->rdai = rdai;
+ rsnd_rdai_channels_set(rdai, 2); /* default 2ch */
+ rsnd_rdai_ssi_lane_set(rdai, 1); /* default 1lane */
+ rsnd_rdai_width_set(rdai, 32); /* default 32bit width */
+
+ for (io_i = 0;; io_i++) {
+ struct device_node *playback = of_parse_phandle(dai_np, "playback", io_i);
+ struct device_node *capture = of_parse_phandle(dai_np, "capture", io_i);
+
+ if (!playback && !capture)
+ break;
+
+ rsnd_parse_connect_ssi(rdai, playback, capture);
+ rsnd_parse_connect_ssiu(rdai, playback, capture);
+ rsnd_parse_connect_src(rdai, playback, capture);
+ rsnd_parse_connect_ctu(rdai, playback, capture);
+ rsnd_parse_connect_mix(rdai, playback, capture);
+ rsnd_parse_connect_dvc(rdai, playback, capture);
+
+ of_node_put(playback);
+ of_node_put(capture);
+ }
+
+ if (rsnd_ssi_is_pin_sharing(io_capture) ||
+ rsnd_ssi_is_pin_sharing(io_playback)) {
+ /* should have symmetric_rate if pin sharing */
+ drv->symmetric_rate = 1;
+ }
+
+ dev_dbg(dev, "%s (%s/%s)\n", rdai->name,
+ rsnd_io_to_mod_ssi(io_playback) ? "play" : " -- ",
+ rsnd_io_to_mod_ssi(io_capture) ? "capture" : " -- ");
+}
+
+static int rsnd_dai_probe(struct rsnd_priv *priv)
+{
+ struct device_node *dai_node;
+ struct device_node *dai_np;
+ struct snd_soc_dai_driver *rdrv;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dai *rdai;
+ int nr;
+ int is_graph;
+ int dai_i;
+
+ dai_node = rsnd_dai_of_node(priv, &is_graph);
+ if (is_graph)
+ nr = of_graph_get_endpoint_count(dai_node);
+ else
+ nr = of_get_child_count(dai_node);
+
+ if (!nr)
+ return -EINVAL;
+
+ rdrv = devm_kcalloc(dev, nr, sizeof(*rdrv), GFP_KERNEL);
+ rdai = devm_kcalloc(dev, nr, sizeof(*rdai), GFP_KERNEL);
+ if (!rdrv || !rdai)
+ return -ENOMEM;
+
+ priv->rdai_nr = nr;
+ priv->daidrv = rdrv;
+ priv->rdai = rdai;
+
+ /*
+ * parse all dai
+ */
+ dai_i = 0;
+ if (is_graph) {
+ for_each_endpoint_of_node(dai_node, dai_np) {
+ __rsnd_dai_probe(priv, dai_np, dai_i);
+ if (rsnd_is_gen3(priv)) {
+ rdai = rsnd_rdai_get(priv, dai_i);
+
+ rsnd_parse_connect_graph(priv, &rdai->playback, dai_np);
+ rsnd_parse_connect_graph(priv, &rdai->capture, dai_np);
+ }
+ dai_i++;
+ }
+ } else {
+ for_each_child_of_node(dai_node, dai_np) {
+ __rsnd_dai_probe(priv, dai_np, dai_i);
+ if (rsnd_is_gen3(priv)) {
+ rdai = rsnd_rdai_get(priv, dai_i);
+
+ rsnd_parse_connect_simple(priv, &rdai->playback, dai_np);
+ rsnd_parse_connect_simple(priv, &rdai->capture, dai_np);
+ }
+ dai_i++;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * pcm ops
+ */
+static int rsnd_hw_update(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (hw_params)
+ ret = rsnd_dai_call(hw_params, io, substream, hw_params);
+ else
+ ret = rsnd_dai_call(hw_free, io, substream);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return ret;
+}
+
+static int rsnd_hw_params(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+ struct snd_soc_pcm_runtime *fe = asoc_substream_to_rtd(substream);
+
+ /*
+ * rsnd assumes that it might be used under DPCM if user want to use
+ * channel / rate convert. Then, rsnd should be FE.
+ * And then, this function will be called *after* BE settings.
+ * this means, each BE already has fixuped hw_params.
+ * see
+ * dpcm_fe_dai_hw_params()
+ * dpcm_be_dai_hw_params()
+ */
+ io->converted_rate = 0;
+ io->converted_chan = 0;
+ if (fe->dai_link->dynamic) {
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct snd_soc_dpcm *dpcm;
+ int stream = substream->stream;
+
+ for_each_dpcm_be(fe, stream, dpcm) {
+ struct snd_pcm_hw_params *be_params = &dpcm->hw_params;
+
+ if (params_channels(hw_params) != params_channels(be_params))
+ io->converted_chan = params_channels(be_params);
+ if (params_rate(hw_params) != params_rate(be_params))
+ io->converted_rate = params_rate(be_params);
+ }
+ if (io->converted_chan)
+ dev_dbg(dev, "convert channels = %d\n", io->converted_chan);
+ if (io->converted_rate) {
+ /*
+ * SRC supports convert rates from params_rate(hw_params)/k_down
+ * to params_rate(hw_params)*k_up, where k_up is always 6, and
+ * k_down depends on number of channels and SRC unit.
+ * So all SRC units can upsample audio up to 6 times regardless
+ * its number of channels. And all SRC units can downsample
+ * 2 channel audio up to 6 times too.
+ */
+ int k_up = 6;
+ int k_down = 6;
+ int channel;
+ struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
+
+ dev_dbg(dev, "convert rate = %d\n", io->converted_rate);
+
+ channel = io->converted_chan ? io->converted_chan :
+ params_channels(hw_params);
+
+ switch (rsnd_mod_id(src_mod)) {
+ /*
+ * SRC0 can downsample 4, 6 and 8 channel audio up to 4 times.
+ * SRC1, SRC3 and SRC4 can downsample 4 channel audio
+ * up to 4 times.
+ * SRC1, SRC3 and SRC4 can downsample 6 and 8 channel audio
+ * no more than twice.
+ */
+ case 1:
+ case 3:
+ case 4:
+ if (channel > 4) {
+ k_down = 2;
+ break;
+ }
+ fallthrough;
+ case 0:
+ if (channel > 2)
+ k_down = 4;
+ break;
+
+ /* Other SRC units do not support more than 2 channels */
+ default:
+ if (channel > 2)
+ return -EINVAL;
+ }
+
+ if (params_rate(hw_params) > io->converted_rate * k_down) {
+ hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->min =
+ io->converted_rate * k_down;
+ hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->max =
+ io->converted_rate * k_down;
+ hw_params->cmask |= SNDRV_PCM_HW_PARAM_RATE;
+ } else if (params_rate(hw_params) * k_up < io->converted_rate) {
+ hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->min =
+ (io->converted_rate + k_up - 1) / k_up;
+ hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->max =
+ (io->converted_rate + k_up - 1) / k_up;
+ hw_params->cmask |= SNDRV_PCM_HW_PARAM_RATE;
+ }
+
+ /*
+ * TBD: Max SRC input and output rates also depend on number
+ * of channels and SRC unit:
+ * SRC1, SRC3 and SRC4 do not support more than 128kHz
+ * for 6 channel and 96kHz for 8 channel audio.
+ * Perhaps this function should return EINVAL if the input or
+ * the output rate exceeds the limitation.
+ */
+ }
+ }
+
+ return rsnd_hw_update(substream, hw_params);
+}
+
+static int rsnd_hw_free(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ return rsnd_hw_update(substream, NULL);
+}
+
+static snd_pcm_uframes_t rsnd_pointer(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
+ struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+ struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+ snd_pcm_uframes_t pointer = 0;
+
+ rsnd_dai_call(pointer, io, &pointer);
+
+ return pointer;
+}
+
+/*
+ * snd_kcontrol
+ */
+static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
+
+ if (cfg->texts) {
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->count = cfg->size;
+ uinfo->value.enumerated.items = cfg->max;
+ if (uinfo->value.enumerated.item >= cfg->max)
+ uinfo->value.enumerated.item = cfg->max - 1;
+ strscpy(uinfo->value.enumerated.name,
+ cfg->texts[uinfo->value.enumerated.item],
+ sizeof(uinfo->value.enumerated.name));
+ } else {
+ uinfo->count = cfg->size;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = cfg->max;
+ uinfo->type = (cfg->max == 1) ?
+ SNDRV_CTL_ELEM_TYPE_BOOLEAN :
+ SNDRV_CTL_ELEM_TYPE_INTEGER;
+ }
+
+ return 0;
+}
+
+static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
+ struct snd_ctl_elem_value *uc)
+{
+ struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
+ int i;
+
+ for (i = 0; i < cfg->size; i++)
+ if (cfg->texts)
+ uc->value.enumerated.item[i] = cfg->val[i];
+ else
+ uc->value.integer.value[i] = cfg->val[i];
+
+ return 0;
+}
+
+static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
+ struct snd_ctl_elem_value *uc)
+{
+ struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
+ int i, change = 0;
+
+ if (!cfg->accept(cfg->io))
+ return 0;
+
+ for (i = 0; i < cfg->size; i++) {
+ if (cfg->texts) {
+ change |= (uc->value.enumerated.item[i] != cfg->val[i]);
+ cfg->val[i] = uc->value.enumerated.item[i];
+ } else {
+ change |= (uc->value.integer.value[i] != cfg->val[i]);
+ cfg->val[i] = uc->value.integer.value[i];
+ }
+ }
+
+ if (change && cfg->update)
+ cfg->update(cfg->io, cfg->mod);
+
+ return change;
+}
+
+int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io)
+{
+ return 1;
+}
+
+int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io)
+{
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ if (!runtime) {
+ dev_warn(dev, "Can't update kctrl when idle\n");
+ return 0;
+ }
+
+ return 1;
+}
+
+struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg)
+{
+ cfg->cfg.val = cfg->val;
+
+ return &cfg->cfg;
+}
+
+struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg)
+{
+ cfg->cfg.val = &cfg->val;
+
+ return &cfg->cfg;
+}
+
+const char * const volume_ramp_rate[] = {
+ "128 dB/1 step", /* 00000 */
+ "64 dB/1 step", /* 00001 */
+ "32 dB/1 step", /* 00010 */
+ "16 dB/1 step", /* 00011 */
+ "8 dB/1 step", /* 00100 */
+ "4 dB/1 step", /* 00101 */
+ "2 dB/1 step", /* 00110 */
+ "1 dB/1 step", /* 00111 */
+ "0.5 dB/1 step", /* 01000 */
+ "0.25 dB/1 step", /* 01001 */
+ "0.125 dB/1 step", /* 01010 = VOLUME_RAMP_MAX_MIX */
+ "0.125 dB/2 steps", /* 01011 */
+ "0.125 dB/4 steps", /* 01100 */
+ "0.125 dB/8 steps", /* 01101 */
+ "0.125 dB/16 steps", /* 01110 */
+ "0.125 dB/32 steps", /* 01111 */
+ "0.125 dB/64 steps", /* 10000 */
+ "0.125 dB/128 steps", /* 10001 */
+ "0.125 dB/256 steps", /* 10010 */
+ "0.125 dB/512 steps", /* 10011 */
+ "0.125 dB/1024 steps", /* 10100 */
+ "0.125 dB/2048 steps", /* 10101 */
+ "0.125 dB/4096 steps", /* 10110 */
+ "0.125 dB/8192 steps", /* 10111 = VOLUME_RAMP_MAX_DVC */
+};
+
+int rsnd_kctrl_new(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_soc_pcm_runtime *rtd,
+ const unsigned char *name,
+ int (*accept)(struct rsnd_dai_stream *io),
+ void (*update)(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod),
+ struct rsnd_kctrl_cfg *cfg,
+ const char * const *texts,
+ int size,
+ u32 max)
+{
+ struct snd_card *card = rtd->card->snd_card;
+ struct snd_kcontrol *kctrl;
+ struct snd_kcontrol_new knew = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = name,
+ .info = rsnd_kctrl_info,
+ .index = rtd->num,
+ .get = rsnd_kctrl_get,
+ .put = rsnd_kctrl_put,
+ };
+ int ret;
+
+ /*
+ * 1) Avoid duplicate register for DVC with MIX case
+ * 2) Allow duplicate register for MIX
+ * 3) re-register if card was rebinded
+ */
+ list_for_each_entry(kctrl, &card->controls, list) {
+ struct rsnd_kctrl_cfg *c = kctrl->private_data;
+
+ if (c == cfg)
+ return 0;
+ }
+
+ if (size > RSND_MAX_CHANNELS)
+ return -EINVAL;
+
+ kctrl = snd_ctl_new1(&knew, cfg);
+ if (!kctrl)
+ return -ENOMEM;
+
+ ret = snd_ctl_add(card, kctrl);
+ if (ret < 0)
+ return ret;
+
+ cfg->texts = texts;
+ cfg->max = max;
+ cfg->size = size;
+ cfg->accept = accept;
+ cfg->update = update;
+ cfg->card = card;
+ cfg->kctrl = kctrl;
+ cfg->io = io;
+ cfg->mod = mod;
+
+ return 0;
+}
+
+/*
+ * snd_soc_component
+ */
+static const struct snd_soc_component_driver rsnd_soc_component = {
+ .name = "rsnd",
+ .probe = rsnd_debugfs_probe,
+ .hw_params = rsnd_hw_params,
+ .hw_free = rsnd_hw_free,
+ .pointer = rsnd_pointer,
+ .legacy_dai_naming = 1,
+};
+
+static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io)
+{
+ int ret;
+
+ ret = rsnd_dai_call(probe, io, priv);
+ if (ret == -EAGAIN) {
+ struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
+ struct rsnd_mod *mod;
+ int i;
+
+ /*
+ * Fallback to PIO mode
+ */
+
+ /*
+ * call "remove" for SSI/SRC/DVC
+ * SSI will be switch to PIO mode if it was DMA mode
+ * see
+ * rsnd_dma_init()
+ * rsnd_ssi_fallback()
+ */
+ rsnd_dai_call(remove, io, priv);
+
+ /*
+ * remove all mod from io
+ * and, re connect ssi
+ */
+ for_each_rsnd_mod(i, mod, io)
+ rsnd_dai_disconnect(mod, io, i);
+ rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI);
+
+ /*
+ * fallback
+ */
+ rsnd_dai_call(fallback, io, priv);
+
+ /*
+ * retry to "probe".
+ * DAI has SSI which is PIO mode only now.
+ */
+ ret = rsnd_dai_call(probe, io, priv);
+ }
+
+ return ret;
+}
+
+/*
+ * rsnd probe
+ */
+static int rsnd_probe(struct platform_device *pdev)
+{
+ struct rsnd_priv *priv;
+ struct device *dev = &pdev->dev;
+ struct rsnd_dai *rdai;
+ int (*probe_func[])(struct rsnd_priv *priv) = {
+ rsnd_gen_probe,
+ rsnd_dma_probe,
+ rsnd_ssi_probe,
+ rsnd_ssiu_probe,
+ rsnd_src_probe,
+ rsnd_ctu_probe,
+ rsnd_mix_probe,
+ rsnd_dvc_probe,
+ rsnd_cmd_probe,
+ rsnd_adg_probe,
+ rsnd_dai_probe,
+ };
+ int ret, i;
+
+ /*
+ * init priv data
+ */
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENODEV;
+
+ priv->pdev = pdev;
+ priv->flags = (unsigned long)of_device_get_match_data(dev);
+ spin_lock_init(&priv->lock);
+
+ /*
+ * init each module
+ */
+ for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
+ ret = probe_func[i](priv);
+ if (ret)
+ return ret;
+ }
+
+ for_each_rsnd_dai(rdai, priv, i) {
+ ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
+ if (ret)
+ goto exit_snd_probe;
+
+ ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
+ if (ret)
+ goto exit_snd_probe;
+ }
+
+ dev_set_drvdata(dev, priv);
+
+ /*
+ * asoc register
+ */
+ ret = devm_snd_soc_register_component(dev, &rsnd_soc_component,
+ priv->daidrv, rsnd_rdai_nr(priv));
+ if (ret < 0) {
+ dev_err(dev, "cannot snd dai register\n");
+ goto exit_snd_probe;
+ }
+
+ pm_runtime_enable(dev);
+
+ dev_info(dev, "probed\n");
+ return ret;
+
+exit_snd_probe:
+ for_each_rsnd_dai(rdai, priv, i) {
+ rsnd_dai_call(remove, &rdai->playback, priv);
+ rsnd_dai_call(remove, &rdai->capture, priv);
+ }
+
+ /*
+ * adg is very special mod which can't use rsnd_dai_call(remove),
+ * and it registers ADG clock on probe.
+ * It should be unregister if probe failed.
+ * Mainly it is assuming -EPROBE_DEFER case
+ */
+ rsnd_adg_remove(priv);
+
+ return ret;
+}
+
+static int rsnd_remove(struct platform_device *pdev)
+{
+ struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
+ struct rsnd_dai *rdai;
+ void (*remove_func[])(struct rsnd_priv *priv) = {
+ rsnd_ssi_remove,
+ rsnd_ssiu_remove,
+ rsnd_src_remove,
+ rsnd_ctu_remove,
+ rsnd_mix_remove,
+ rsnd_dvc_remove,
+ rsnd_cmd_remove,
+ rsnd_adg_remove,
+ };
+ int i;
+
+ pm_runtime_disable(&pdev->dev);
+
+ for_each_rsnd_dai(rdai, priv, i) {
+ int ret;
+
+ ret = rsnd_dai_call(remove, &rdai->playback, priv);
+ if (ret)
+ dev_warn(&pdev->dev, "Failed to remove playback dai #%d\n", i);
+
+ ret = rsnd_dai_call(remove, &rdai->capture, priv);
+ if (ret)
+ dev_warn(&pdev->dev, "Failed to remove capture dai #%d\n", i);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(remove_func); i++)
+ remove_func[i](priv);
+
+ return 0;
+}
+
+static int __maybe_unused rsnd_suspend(struct device *dev)
+{
+ struct rsnd_priv *priv = dev_get_drvdata(dev);
+
+ rsnd_adg_clk_disable(priv);
+
+ return 0;
+}
+
+static int __maybe_unused rsnd_resume(struct device *dev)
+{
+ struct rsnd_priv *priv = dev_get_drvdata(dev);
+
+ rsnd_adg_clk_enable(priv);
+
+ return 0;
+}
+
+static const struct dev_pm_ops rsnd_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(rsnd_suspend, rsnd_resume)
+};
+
+static struct platform_driver rsnd_driver = {
+ .driver = {
+ .name = "rcar_sound",
+ .pm = &rsnd_pm_ops,
+ .of_match_table = rsnd_of_match,
+ },
+ .probe = rsnd_probe,
+ .remove = rsnd_remove,
+};
+module_platform_driver(rsnd_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Renesas R-Car audio driver");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
+MODULE_ALIAS("platform:rcar-pcm-audio");
diff --git a/sound/soc/sh/rcar/ctu.c b/sound/soc/sh/rcar/ctu.c
new file mode 100644
index 000000000..e39eb2ac7
--- /dev/null
+++ b/sound/soc/sh/rcar/ctu.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ctu.c
+//
+// Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include "rsnd.h"
+
+#define CTU_NAME_SIZE 16
+#define CTU_NAME "ctu"
+
+/*
+ * User needs to setup CTU by amixer, and its settings are
+ * based on below registers
+ *
+ * CTUn_CPMDR : amixser set "CTU Pass"
+ * CTUn_SV0xR : amixser set "CTU SV0"
+ * CTUn_SV1xR : amixser set "CTU SV1"
+ * CTUn_SV2xR : amixser set "CTU SV2"
+ * CTUn_SV3xR : amixser set "CTU SV3"
+ *
+ * [CTU Pass]
+ * 0000: default
+ * 0001: Connect input data of channel 0
+ * 0010: Connect input data of channel 1
+ * 0011: Connect input data of channel 2
+ * 0100: Connect input data of channel 3
+ * 0101: Connect input data of channel 4
+ * 0110: Connect input data of channel 5
+ * 0111: Connect input data of channel 6
+ * 1000: Connect input data of channel 7
+ * 1001: Connect calculated data by scale values of matrix row 0
+ * 1010: Connect calculated data by scale values of matrix row 1
+ * 1011: Connect calculated data by scale values of matrix row 2
+ * 1100: Connect calculated data by scale values of matrix row 3
+ *
+ * [CTU SVx]
+ * [Output0] = [SV00, SV01, SV02, SV03, SV04, SV05, SV06, SV07]
+ * [Output1] = [SV10, SV11, SV12, SV13, SV14, SV15, SV16, SV17]
+ * [Output2] = [SV20, SV21, SV22, SV23, SV24, SV25, SV26, SV27]
+ * [Output3] = [SV30, SV31, SV32, SV33, SV34, SV35, SV36, SV37]
+ * [Output4] = [ 0, 0, 0, 0, 0, 0, 0, 0 ]
+ * [Output5] = [ 0, 0, 0, 0, 0, 0, 0, 0 ]
+ * [Output6] = [ 0, 0, 0, 0, 0, 0, 0, 0 ]
+ * [Output7] = [ 0, 0, 0, 0, 0, 0, 0, 0 ]
+ *
+ * [SVxx]
+ * Plus Minus
+ * value time dB value time dB
+ * -----------------------------------------------------------------------
+ * H'7F_FFFF 2 6 H'80_0000 2 6
+ * ...
+ * H'40_0000 1 0 H'C0_0000 1 0
+ * ...
+ * H'00_0001 2.38 x 10^-7 -132
+ * H'00_0000 0 Mute H'FF_FFFF 2.38 x 10^-7 -132
+ *
+ *
+ * Ex) Input ch -> Output ch
+ * 1ch -> 0ch
+ * 0ch -> 1ch
+ *
+ * amixer set "CTU Reset" on
+ * amixer set "CTU Pass" 9,10
+ * amixer set "CTU SV0" 0,4194304
+ * amixer set "CTU SV1" 4194304,0
+ * or
+ * amixer set "CTU Reset" on
+ * amixer set "CTU Pass" 2,1
+ */
+
+struct rsnd_ctu {
+ struct rsnd_mod mod;
+ struct rsnd_kctrl_cfg_m pass;
+ struct rsnd_kctrl_cfg_m sv[4];
+ struct rsnd_kctrl_cfg_s reset;
+ int channels;
+ u32 flags;
+};
+
+#define KCTRL_INITIALIZED (1 << 0)
+
+#define rsnd_ctu_nr(priv) ((priv)->ctu_nr)
+#define for_each_rsnd_ctu(pos, priv, i) \
+ for ((i) = 0; \
+ ((i) < rsnd_ctu_nr(priv)) && \
+ ((pos) = (struct rsnd_ctu *)(priv)->ctu + i); \
+ i++)
+
+#define rsnd_mod_to_ctu(_mod) \
+ container_of((_mod), struct rsnd_ctu, mod)
+
+#define rsnd_ctu_get(priv, id) ((struct rsnd_ctu *)(priv->ctu) + id)
+
+static void rsnd_ctu_activation(struct rsnd_mod *mod)
+{
+ rsnd_mod_write(mod, CTU_SWRSR, 0);
+ rsnd_mod_write(mod, CTU_SWRSR, 1);
+}
+
+static void rsnd_ctu_halt(struct rsnd_mod *mod)
+{
+ rsnd_mod_write(mod, CTU_CTUIR, 1);
+ rsnd_mod_write(mod, CTU_SWRSR, 0);
+}
+
+static int rsnd_ctu_probe_(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ return rsnd_cmd_attach(io, rsnd_mod_id(mod));
+}
+
+static void rsnd_ctu_value_init(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_ctu *ctu = rsnd_mod_to_ctu(mod);
+ u32 cpmdr = 0;
+ u32 scmdr = 0;
+ int i, j;
+
+ for (i = 0; i < RSND_MAX_CHANNELS; i++) {
+ u32 val = rsnd_kctrl_valm(ctu->pass, i);
+
+ cpmdr |= val << (28 - (i * 4));
+
+ if ((val > 0x8) && (scmdr < (val - 0x8)))
+ scmdr = val - 0x8;
+ }
+
+ rsnd_mod_write(mod, CTU_CTUIR, 1);
+
+ rsnd_mod_write(mod, CTU_ADINR, rsnd_runtime_channel_original(io));
+
+ rsnd_mod_write(mod, CTU_CPMDR, cpmdr);
+
+ rsnd_mod_write(mod, CTU_SCMDR, scmdr);
+
+ for (i = 0; i < 4; i++) {
+
+ if (i >= scmdr)
+ break;
+
+ for (j = 0; j < RSND_MAX_CHANNELS; j++)
+ rsnd_mod_write(mod, CTU_SVxxR(i, j), rsnd_kctrl_valm(ctu->sv[i], j));
+ }
+
+ rsnd_mod_write(mod, CTU_CTUIR, 0);
+}
+
+static void rsnd_ctu_value_reset(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_ctu *ctu = rsnd_mod_to_ctu(mod);
+ int i;
+
+ if (!rsnd_kctrl_vals(ctu->reset))
+ return;
+
+ for (i = 0; i < RSND_MAX_CHANNELS; i++) {
+ rsnd_kctrl_valm(ctu->pass, i) = 0;
+ rsnd_kctrl_valm(ctu->sv[0], i) = 0;
+ rsnd_kctrl_valm(ctu->sv[1], i) = 0;
+ rsnd_kctrl_valm(ctu->sv[2], i) = 0;
+ rsnd_kctrl_valm(ctu->sv[3], i) = 0;
+ }
+ rsnd_kctrl_vals(ctu->reset) = 0;
+}
+
+static int rsnd_ctu_init(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ int ret;
+
+ ret = rsnd_mod_power_on(mod);
+ if (ret < 0)
+ return ret;
+
+ rsnd_ctu_activation(mod);
+
+ rsnd_ctu_value_init(io, mod);
+
+ return 0;
+}
+
+static int rsnd_ctu_quit(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ rsnd_ctu_halt(mod);
+
+ rsnd_mod_power_off(mod);
+
+ return 0;
+}
+
+static int rsnd_ctu_pcm_new(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct rsnd_ctu *ctu = rsnd_mod_to_ctu(mod);
+ int ret;
+
+ if (rsnd_flags_has(ctu, KCTRL_INITIALIZED))
+ return 0;
+
+ /* CTU Pass */
+ ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU Pass",
+ rsnd_kctrl_accept_anytime,
+ NULL,
+ &ctu->pass, RSND_MAX_CHANNELS,
+ 0xC);
+ if (ret < 0)
+ return ret;
+
+ /* ROW0 */
+ ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV0",
+ rsnd_kctrl_accept_anytime,
+ NULL,
+ &ctu->sv[0], RSND_MAX_CHANNELS,
+ 0x00FFFFFF);
+ if (ret < 0)
+ return ret;
+
+ /* ROW1 */
+ ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV1",
+ rsnd_kctrl_accept_anytime,
+ NULL,
+ &ctu->sv[1], RSND_MAX_CHANNELS,
+ 0x00FFFFFF);
+ if (ret < 0)
+ return ret;
+
+ /* ROW2 */
+ ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV2",
+ rsnd_kctrl_accept_anytime,
+ NULL,
+ &ctu->sv[2], RSND_MAX_CHANNELS,
+ 0x00FFFFFF);
+ if (ret < 0)
+ return ret;
+
+ /* ROW3 */
+ ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV3",
+ rsnd_kctrl_accept_anytime,
+ NULL,
+ &ctu->sv[3], RSND_MAX_CHANNELS,
+ 0x00FFFFFF);
+ if (ret < 0)
+ return ret;
+
+ /* Reset */
+ ret = rsnd_kctrl_new_s(mod, io, rtd, "CTU Reset",
+ rsnd_kctrl_accept_anytime,
+ rsnd_ctu_value_reset,
+ &ctu->reset, 1);
+
+ rsnd_flags_set(ctu, KCTRL_INITIALIZED);
+
+ return ret;
+}
+
+static int rsnd_ctu_id(struct rsnd_mod *mod)
+{
+ /*
+ * ctu00: -> 0, ctu01: -> 0, ctu02: -> 0, ctu03: -> 0
+ * ctu10: -> 1, ctu11: -> 1, ctu12: -> 1, ctu13: -> 1
+ */
+ return mod->id / 4;
+}
+
+static int rsnd_ctu_id_sub(struct rsnd_mod *mod)
+{
+ /*
+ * ctu00: -> 0, ctu01: -> 1, ctu02: -> 2, ctu03: -> 3
+ * ctu10: -> 0, ctu11: -> 1, ctu12: -> 2, ctu13: -> 3
+ */
+ return mod->id % 4;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void rsnd_ctu_debug_info(struct seq_file *m,
+ struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU,
+ 0x500 + rsnd_mod_id_raw(mod) * 0x100, 0x100);
+}
+#define DEBUG_INFO .debug_info = rsnd_ctu_debug_info
+#else
+#define DEBUG_INFO
+#endif
+
+static struct rsnd_mod_ops rsnd_ctu_ops = {
+ .name = CTU_NAME,
+ .probe = rsnd_ctu_probe_,
+ .init = rsnd_ctu_init,
+ .quit = rsnd_ctu_quit,
+ .pcm_new = rsnd_ctu_pcm_new,
+ .get_status = rsnd_mod_get_status,
+ .id = rsnd_ctu_id,
+ .id_sub = rsnd_ctu_id_sub,
+ .id_cmd = rsnd_mod_id_raw,
+ DEBUG_INFO
+};
+
+struct rsnd_mod *rsnd_ctu_mod_get(struct rsnd_priv *priv, int id)
+{
+ if (WARN_ON(id < 0 || id >= rsnd_ctu_nr(priv)))
+ id = 0;
+
+ return rsnd_mod_get(rsnd_ctu_get(priv, id));
+}
+
+int rsnd_ctu_probe(struct rsnd_priv *priv)
+{
+ struct device_node *node;
+ struct device_node *np;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_ctu *ctu;
+ struct clk *clk;
+ char name[CTU_NAME_SIZE];
+ int i, nr, ret;
+
+ /* This driver doesn't support Gen1 at this point */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ node = rsnd_ctu_of_node(priv);
+ if (!node)
+ return 0; /* not used is not error */
+
+ nr = of_get_child_count(node);
+ if (!nr) {
+ ret = -EINVAL;
+ goto rsnd_ctu_probe_done;
+ }
+
+ ctu = devm_kcalloc(dev, nr, sizeof(*ctu), GFP_KERNEL);
+ if (!ctu) {
+ ret = -ENOMEM;
+ goto rsnd_ctu_probe_done;
+ }
+
+ priv->ctu_nr = nr;
+ priv->ctu = ctu;
+
+ i = 0;
+ ret = 0;
+ for_each_child_of_node(node, np) {
+ ctu = rsnd_ctu_get(priv, i);
+
+ /*
+ * CTU00, CTU01, CTU02, CTU03 => CTU0
+ * CTU10, CTU11, CTU12, CTU13 => CTU1
+ */
+ snprintf(name, CTU_NAME_SIZE, "%s.%d",
+ CTU_NAME, i / 4);
+
+ clk = devm_clk_get(dev, name);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ of_node_put(np);
+ goto rsnd_ctu_probe_done;
+ }
+
+ ret = rsnd_mod_init(priv, rsnd_mod_get(ctu), &rsnd_ctu_ops,
+ clk, RSND_MOD_CTU, i);
+ if (ret) {
+ of_node_put(np);
+ goto rsnd_ctu_probe_done;
+ }
+
+ i++;
+ }
+
+
+rsnd_ctu_probe_done:
+ of_node_put(node);
+
+ return ret;
+}
+
+void rsnd_ctu_remove(struct rsnd_priv *priv)
+{
+ struct rsnd_ctu *ctu;
+ int i;
+
+ for_each_rsnd_ctu(ctu, priv, i) {
+ rsnd_mod_quit(rsnd_mod_get(ctu));
+ }
+}
diff --git a/sound/soc/sh/rcar/debugfs.c b/sound/soc/sh/rcar/debugfs.c
new file mode 100644
index 000000000..26d3b310b
--- /dev/null
+++ b/sound/soc/sh/rcar/debugfs.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// // Renesas R-Car debugfs support
+//
+// Copyright (c) 2021 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+// > mount -t debugfs none /sys/kernel/debug
+// > cd /sys/kernel/debug/asoc/rcar-sound/ec500000.sound/rdai{N}/
+// > cat playback/xxx
+// > cat capture/xxx
+//
+#ifdef CONFIG_DEBUG_FS
+
+#include <linux/debugfs.h>
+#include "rsnd.h"
+
+static int rsnd_debugfs_show(struct seq_file *m, void *v)
+{
+ struct rsnd_dai_stream *io = m->private;
+ struct rsnd_mod *mod = rsnd_io_to_mod_ssi(io);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ int i;
+
+ /* adg is out of mods */
+ rsnd_adg_clk_dbg_info(priv, m);
+
+ for_each_rsnd_mod(i, mod, io) {
+ u32 *status = mod->ops->get_status(mod, io, mod->type);
+
+ seq_printf(m, "name: %s\n", rsnd_mod_name(mod));
+ seq_printf(m, "status: %08x\n", *status);
+
+ if (mod->ops->debug_info)
+ mod->ops->debug_info(m, io, mod);
+ }
+
+ return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(rsnd_debugfs);
+
+void rsnd_debugfs_reg_show(struct seq_file *m, phys_addr_t _addr,
+ void __iomem *base, int offset, int size)
+{
+ int i, j;
+
+ for (i = 0; i < size; i += 0x10) {
+ phys_addr_t addr = _addr + offset + i;
+
+ seq_printf(m, "%pa:", &addr);
+ for (j = 0; j < 0x10; j += 0x4)
+ seq_printf(m, " %08x", __raw_readl(base + offset + i + j));
+ seq_puts(m, "\n");
+ }
+}
+
+void rsnd_debugfs_mod_reg_show(struct seq_file *m, struct rsnd_mod *mod,
+ int reg_id, int offset, int size)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+
+ rsnd_debugfs_reg_show(m,
+ rsnd_gen_get_phy_addr(priv, reg_id),
+ rsnd_gen_get_base_addr(priv, reg_id),
+ offset, size);
+}
+
+int rsnd_debugfs_probe(struct snd_soc_component *component)
+{
+ struct rsnd_priv *priv = dev_get_drvdata(component->dev);
+ struct rsnd_dai *rdai;
+ struct dentry *dir;
+ char name[64];
+ int i;
+
+ /* Gen1 is not supported */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ for_each_rsnd_dai(rdai, priv, i) {
+ /*
+ * created debugfs will be automatically
+ * removed, nothing to do for _remove.
+ * see
+ * soc_cleanup_component_debugfs()
+ */
+ snprintf(name, sizeof(name), "rdai%d", i);
+ dir = debugfs_create_dir(name, component->debugfs_root);
+
+ debugfs_create_file("playback", 0444, dir, &rdai->playback, &rsnd_debugfs_fops);
+ debugfs_create_file("capture", 0444, dir, &rdai->capture, &rsnd_debugfs_fops);
+ }
+
+ return 0;
+}
+
+#endif /* CONFIG_DEBUG_FS */
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
new file mode 100644
index 000000000..463ab237d
--- /dev/null
+++ b/sound/soc/sh/rcar/dma.c
@@ -0,0 +1,905 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Renesas R-Car Audio DMAC support
+//
+// Copyright (C) 2015 Renesas Electronics Corp.
+// Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include <linux/delay.h>
+#include <linux/of_dma.h>
+#include "rsnd.h"
+
+/*
+ * Audio DMAC peri peri register
+ */
+#define PDMASAR 0x00
+#define PDMADAR 0x04
+#define PDMACHCR 0x0c
+
+/* PDMACHCR */
+#define PDMACHCR_DE (1 << 0)
+
+
+struct rsnd_dmaen {
+ struct dma_chan *chan;
+ dma_cookie_t cookie;
+ unsigned int dma_len;
+};
+
+struct rsnd_dmapp {
+ int dmapp_id;
+ u32 chcr;
+};
+
+struct rsnd_dma {
+ struct rsnd_mod mod;
+ struct rsnd_mod *mod_from;
+ struct rsnd_mod *mod_to;
+ dma_addr_t src_addr;
+ dma_addr_t dst_addr;
+ union {
+ struct rsnd_dmaen en;
+ struct rsnd_dmapp pp;
+ } dma;
+};
+
+struct rsnd_dma_ctrl {
+ void __iomem *ppbase;
+ phys_addr_t ppres;
+ int dmaen_num;
+ int dmapp_num;
+};
+
+#define rsnd_priv_to_dmac(p) ((struct rsnd_dma_ctrl *)(p)->dma)
+#define rsnd_mod_to_dma(_mod) container_of((_mod), struct rsnd_dma, mod)
+#define rsnd_dma_to_dmaen(dma) (&(dma)->dma.en)
+#define rsnd_dma_to_dmapp(dma) (&(dma)->dma.pp)
+
+/* for DEBUG */
+static struct rsnd_mod_ops mem_ops = {
+ .name = "mem",
+};
+
+static struct rsnd_mod mem = {
+};
+
+/*
+ * Audio DMAC
+ */
+static void __rsnd_dmaen_complete(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ if (rsnd_io_is_working(io))
+ rsnd_dai_period_elapsed(io);
+}
+
+static void rsnd_dmaen_complete(void *data)
+{
+ struct rsnd_mod *mod = data;
+
+ rsnd_mod_interrupt(mod, __rsnd_dmaen_complete);
+}
+
+static struct dma_chan *rsnd_dmaen_request_channel(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod_from,
+ struct rsnd_mod *mod_to)
+{
+ if ((!mod_from && !mod_to) ||
+ (mod_from && mod_to))
+ return NULL;
+
+ if (mod_from)
+ return rsnd_mod_dma_req(io, mod_from);
+ else
+ return rsnd_mod_dma_req(io, mod_to);
+}
+
+static int rsnd_dmaen_stop(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+
+ if (dmaen->chan)
+ dmaengine_terminate_async(dmaen->chan);
+
+ return 0;
+}
+
+static int rsnd_dmaen_cleanup(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+
+ /*
+ * DMAEngine release uses mutex lock.
+ * Thus, it shouldn't be called under spinlock.
+ * Let's call it under prepare
+ */
+ if (dmaen->chan)
+ dma_release_channel(dmaen->chan);
+
+ dmaen->chan = NULL;
+
+ return 0;
+}
+
+static int rsnd_dmaen_prepare(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ /* maybe suspended */
+ if (dmaen->chan)
+ return 0;
+
+ /*
+ * DMAEngine request uses mutex lock.
+ * Thus, it shouldn't be called under spinlock.
+ * Let's call it under prepare
+ */
+ dmaen->chan = rsnd_dmaen_request_channel(io,
+ dma->mod_from,
+ dma->mod_to);
+ if (IS_ERR_OR_NULL(dmaen->chan)) {
+ dmaen->chan = NULL;
+ dev_err(dev, "can't get dma channel\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int rsnd_dmaen_start(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+ struct snd_pcm_substream *substream = io->substream;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct dma_async_tx_descriptor *desc;
+ struct dma_slave_config cfg = {};
+ enum dma_slave_buswidth buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ int is_play = rsnd_io_is_play(io);
+ int ret;
+
+ /*
+ * in case of monaural data writing or reading through Audio-DMAC
+ * data is always in Left Justified format, so both src and dst
+ * DMA Bus width need to be set equal to physical data width.
+ */
+ if (rsnd_runtime_channel_original(io) == 1) {
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ int bits = snd_pcm_format_physical_width(runtime->format);
+
+ switch (bits) {
+ case 8:
+ buswidth = DMA_SLAVE_BUSWIDTH_1_BYTE;
+ break;
+ case 16:
+ buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES;
+ break;
+ case 32:
+ buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ break;
+ default:
+ dev_err(dev, "invalid format width %d\n", bits);
+ return -EINVAL;
+ }
+ }
+
+ cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
+ cfg.src_addr = dma->src_addr;
+ cfg.dst_addr = dma->dst_addr;
+ cfg.src_addr_width = buswidth;
+ cfg.dst_addr_width = buswidth;
+
+ dev_dbg(dev, "%s %pad -> %pad\n",
+ rsnd_mod_name(mod),
+ &cfg.src_addr, &cfg.dst_addr);
+
+ ret = dmaengine_slave_config(dmaen->chan, &cfg);
+ if (ret < 0)
+ return ret;
+
+ desc = dmaengine_prep_dma_cyclic(dmaen->chan,
+ substream->runtime->dma_addr,
+ snd_pcm_lib_buffer_bytes(substream),
+ snd_pcm_lib_period_bytes(substream),
+ is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM,
+ DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+
+ if (!desc) {
+ dev_err(dev, "dmaengine_prep_slave_sg() fail\n");
+ return -EIO;
+ }
+
+ desc->callback = rsnd_dmaen_complete;
+ desc->callback_param = rsnd_mod_get(dma);
+
+ dmaen->dma_len = snd_pcm_lib_buffer_bytes(substream);
+
+ dmaen->cookie = dmaengine_submit(desc);
+ if (dmaen->cookie < 0) {
+ dev_err(dev, "dmaengine_submit() fail\n");
+ return -EIO;
+ }
+
+ dma_async_issue_pending(dmaen->chan);
+
+ return 0;
+}
+
+struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node, char *name,
+ struct rsnd_mod *mod, char *x)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct dma_chan *chan = NULL;
+ struct device_node *np;
+ int i = 0;
+
+ for_each_child_of_node(of_node, np) {
+ i = rsnd_node_fixed_index(dev, np, name, i);
+ if (i < 0) {
+ chan = NULL;
+ of_node_put(np);
+ break;
+ }
+
+ if (i == rsnd_mod_id_raw(mod) && (!chan))
+ chan = of_dma_request_slave_channel(np, x);
+ i++;
+ }
+
+ /* It should call of_node_put(), since, it is rsnd_xxx_of_node() */
+ of_node_put(of_node);
+
+ return chan;
+}
+
+static int rsnd_dmaen_attach(struct rsnd_dai_stream *io,
+ struct rsnd_dma *dma,
+ struct rsnd_mod *mod_from, struct rsnd_mod *mod_to)
+{
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ struct dma_chan *chan;
+
+ /* try to get DMAEngine channel */
+ chan = rsnd_dmaen_request_channel(io, mod_from, mod_to);
+ if (IS_ERR_OR_NULL(chan)) {
+ /* Let's follow when -EPROBE_DEFER case */
+ if (PTR_ERR(chan) == -EPROBE_DEFER)
+ return PTR_ERR(chan);
+
+ /*
+ * DMA failed. try to PIO mode
+ * see
+ * rsnd_ssi_fallback()
+ * rsnd_rdai_continuance_probe()
+ */
+ return -EAGAIN;
+ }
+
+ /*
+ * use it for IPMMU if needed
+ * see
+ * rsnd_preallocate_pages()
+ */
+ io->dmac_dev = chan->device->dev;
+
+ dma_release_channel(chan);
+
+ dmac->dmaen_num++;
+
+ return 0;
+}
+
+static int rsnd_dmaen_pointer(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ snd_pcm_uframes_t *pointer)
+{
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+ struct rsnd_dmaen *dmaen = rsnd_dma_to_dmaen(dma);
+ struct dma_tx_state state;
+ enum dma_status status;
+ unsigned int pos = 0;
+
+ status = dmaengine_tx_status(dmaen->chan, dmaen->cookie, &state);
+ if (status == DMA_IN_PROGRESS || status == DMA_PAUSED) {
+ if (state.residue > 0 && state.residue <= dmaen->dma_len)
+ pos = dmaen->dma_len - state.residue;
+ }
+ *pointer = bytes_to_frames(runtime, pos);
+
+ return 0;
+}
+
+static struct rsnd_mod_ops rsnd_dmaen_ops = {
+ .name = "audmac",
+ .prepare = rsnd_dmaen_prepare,
+ .cleanup = rsnd_dmaen_cleanup,
+ .start = rsnd_dmaen_start,
+ .stop = rsnd_dmaen_stop,
+ .pointer = rsnd_dmaen_pointer,
+ .get_status = rsnd_mod_get_status,
+};
+
+/*
+ * Audio DMAC peri peri
+ */
+static const u8 gen2_id_table_ssiu[] = {
+ /* SSI00 ~ SSI07 */
+ 0x00, 0x01, 0x02, 0x03, 0x39, 0x3a, 0x3b, 0x3c,
+ /* SSI10 ~ SSI17 */
+ 0x04, 0x05, 0x06, 0x07, 0x3d, 0x3e, 0x3f, 0x40,
+ /* SSI20 ~ SSI27 */
+ 0x08, 0x09, 0x0a, 0x0b, 0x41, 0x42, 0x43, 0x44,
+ /* SSI30 ~ SSI37 */
+ 0x0c, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b,
+ /* SSI40 ~ SSI47 */
+ 0x0d, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52,
+ /* SSI5 */
+ 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* SSI6 */
+ 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* SSI7 */
+ 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* SSI8 */
+ 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* SSI90 ~ SSI97 */
+ 0x12, 0x13, 0x14, 0x15, 0x53, 0x54, 0x55, 0x56,
+};
+static const u8 gen2_id_table_scu[] = {
+ 0x2d, /* SCU_SRCI0 */
+ 0x2e, /* SCU_SRCI1 */
+ 0x2f, /* SCU_SRCI2 */
+ 0x30, /* SCU_SRCI3 */
+ 0x31, /* SCU_SRCI4 */
+ 0x32, /* SCU_SRCI5 */
+ 0x33, /* SCU_SRCI6 */
+ 0x34, /* SCU_SRCI7 */
+ 0x35, /* SCU_SRCI8 */
+ 0x36, /* SCU_SRCI9 */
+};
+static const u8 gen2_id_table_cmd[] = {
+ 0x37, /* SCU_CMD0 */
+ 0x38, /* SCU_CMD1 */
+};
+
+static u32 rsnd_dmapp_get_id(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
+ struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io);
+ struct rsnd_mod *src = rsnd_io_to_mod_src(io);
+ struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
+ const u8 *entry = NULL;
+ int id = 255;
+ int size = 0;
+
+ if ((mod == ssi) ||
+ (mod == ssiu)) {
+ int busif = rsnd_mod_id_sub(ssiu);
+
+ entry = gen2_id_table_ssiu;
+ size = ARRAY_SIZE(gen2_id_table_ssiu);
+ id = (rsnd_mod_id(mod) * 8) + busif;
+ } else if (mod == src) {
+ entry = gen2_id_table_scu;
+ size = ARRAY_SIZE(gen2_id_table_scu);
+ id = rsnd_mod_id(mod);
+ } else if (mod == dvc) {
+ entry = gen2_id_table_cmd;
+ size = ARRAY_SIZE(gen2_id_table_cmd);
+ id = rsnd_mod_id(mod);
+ }
+
+ if ((!entry) || (size <= id)) {
+ struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io));
+
+ dev_err(dev, "unknown connection (%s)\n", rsnd_mod_name(mod));
+
+ /* use non-prohibited SRS number as error */
+ return 0x00; /* SSI00 */
+ }
+
+ return entry[id];
+}
+
+static u32 rsnd_dmapp_get_chcr(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod_from,
+ struct rsnd_mod *mod_to)
+{
+ return (rsnd_dmapp_get_id(io, mod_from) << 24) +
+ (rsnd_dmapp_get_id(io, mod_to) << 16);
+}
+
+#define rsnd_dmapp_addr(dmac, dma, reg) \
+ (dmac->ppbase + 0x20 + reg + \
+ (0x10 * rsnd_dma_to_dmapp(dma)->dmapp_id))
+static void rsnd_dmapp_write(struct rsnd_dma *dma, u32 data, u32 reg)
+{
+ struct rsnd_mod *mod = rsnd_mod_get(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dev_dbg(dev, "w 0x%px : %08x\n", rsnd_dmapp_addr(dmac, dma, reg), data);
+
+ iowrite32(data, rsnd_dmapp_addr(dmac, dma, reg));
+}
+
+static u32 rsnd_dmapp_read(struct rsnd_dma *dma, u32 reg)
+{
+ struct rsnd_mod *mod = rsnd_mod_get(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+
+ return ioread32(rsnd_dmapp_addr(dmac, dma, reg));
+}
+
+static void rsnd_dmapp_bset(struct rsnd_dma *dma, u32 data, u32 mask, u32 reg)
+{
+ struct rsnd_mod *mod = rsnd_mod_get(dma);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ void __iomem *addr = rsnd_dmapp_addr(dmac, dma, reg);
+ u32 val = ioread32(addr);
+
+ val &= ~mask;
+ val |= (data & mask);
+
+ iowrite32(val, addr);
+}
+
+static int rsnd_dmapp_stop(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+ int i;
+
+ rsnd_dmapp_bset(dma, 0, PDMACHCR_DE, PDMACHCR);
+
+ for (i = 0; i < 1024; i++) {
+ if (0 == (rsnd_dmapp_read(dma, PDMACHCR) & PDMACHCR_DE))
+ return 0;
+ udelay(1);
+ }
+
+ return -EIO;
+}
+
+static int rsnd_dmapp_start(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+ struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma);
+
+ rsnd_dmapp_write(dma, dma->src_addr, PDMASAR);
+ rsnd_dmapp_write(dma, dma->dst_addr, PDMADAR);
+ rsnd_dmapp_write(dma, dmapp->chcr, PDMACHCR);
+
+ return 0;
+}
+
+static int rsnd_dmapp_attach(struct rsnd_dai_stream *io,
+ struct rsnd_dma *dma,
+ struct rsnd_mod *mod_from, struct rsnd_mod *mod_to)
+{
+ struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma);
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dmapp->dmapp_id = dmac->dmapp_num;
+ dmapp->chcr = rsnd_dmapp_get_chcr(io, mod_from, mod_to) | PDMACHCR_DE;
+
+ dmac->dmapp_num++;
+
+ dev_dbg(dev, "id/src/dst/chcr = %d/%pad/%pad/%08x\n",
+ dmapp->dmapp_id, &dma->src_addr, &dma->dst_addr, dmapp->chcr);
+
+ return 0;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void rsnd_dmapp_debug_info(struct seq_file *m,
+ struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ struct rsnd_dma *dma = rsnd_mod_to_dma(mod);
+ struct rsnd_dmapp *dmapp = rsnd_dma_to_dmapp(dma);
+
+ rsnd_debugfs_reg_show(m, dmac->ppres, dmac->ppbase,
+ 0x20 + 0x10 * dmapp->dmapp_id, 0x10);
+}
+#define DEBUG_INFO .debug_info = rsnd_dmapp_debug_info
+#else
+#define DEBUG_INFO
+#endif
+
+static struct rsnd_mod_ops rsnd_dmapp_ops = {
+ .name = "audmac-pp",
+ .start = rsnd_dmapp_start,
+ .stop = rsnd_dmapp_stop,
+ .quit = rsnd_dmapp_stop,
+ .get_status = rsnd_mod_get_status,
+ DEBUG_INFO
+};
+
+/*
+ * Common DMAC Interface
+ */
+
+/*
+ * DMA read/write register offset
+ *
+ * RSND_xxx_I_N for Audio DMAC input
+ * RSND_xxx_O_N for Audio DMAC output
+ * RSND_xxx_I_P for Audio DMAC peri peri input
+ * RSND_xxx_O_P for Audio DMAC peri peri output
+ *
+ * ex) R-Car H2 case
+ * mod / DMAC in / DMAC out / DMAC PP in / DMAC pp out
+ * SSI : 0xec541000 / 0xec241008 / 0xec24100c
+ * SSIU: 0xec541000 / 0xec100000 / 0xec100000 / 0xec400000 / 0xec400000
+ * SCU : 0xec500000 / 0xec000000 / 0xec004000 / 0xec300000 / 0xec304000
+ * CMD : 0xec500000 / / 0xec008000 0xec308000
+ */
+#define RDMA_SSI_I_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0x8)
+#define RDMA_SSI_O_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0xc)
+
+#define RDMA_SSIU_I_N(addr, i, j) (addr ##_reg - 0x00441000 + (0x1000 * (i)) + (((j) / 4) * 0xA000) + (((j) % 4) * 0x400) - (0x4000 * ((i) / 9) * ((j) / 4)))
+#define RDMA_SSIU_O_N(addr, i, j) RDMA_SSIU_I_N(addr, i, j)
+
+#define RDMA_SSIU_I_P(addr, i, j) (addr ##_reg - 0x00141000 + (0x1000 * (i)) + (((j) / 4) * 0xA000) + (((j) % 4) * 0x400) - (0x4000 * ((i) / 9) * ((j) / 4)))
+#define RDMA_SSIU_O_P(addr, i, j) RDMA_SSIU_I_P(addr, i, j)
+
+#define RDMA_SRC_I_N(addr, i) (addr ##_reg - 0x00500000 + (0x400 * i))
+#define RDMA_SRC_O_N(addr, i) (addr ##_reg - 0x004fc000 + (0x400 * i))
+
+#define RDMA_SRC_I_P(addr, i) (addr ##_reg - 0x00200000 + (0x400 * i))
+#define RDMA_SRC_O_P(addr, i) (addr ##_reg - 0x001fc000 + (0x400 * i))
+
+#define RDMA_CMD_O_N(addr, i) (addr ##_reg - 0x004f8000 + (0x400 * i))
+#define RDMA_CMD_O_P(addr, i) (addr ##_reg - 0x001f8000 + (0x400 * i))
+
+static dma_addr_t
+rsnd_gen2_dma_addr(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod,
+ int is_play, int is_from)
+{
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ phys_addr_t ssi_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SSI);
+ phys_addr_t src_reg = rsnd_gen_get_phy_addr(priv, RSND_GEN2_SCU);
+ int is_ssi = !!(rsnd_io_to_mod_ssi(io) == mod) ||
+ !!(rsnd_io_to_mod_ssiu(io) == mod);
+ int use_src = !!rsnd_io_to_mod_src(io);
+ int use_cmd = !!rsnd_io_to_mod_dvc(io) ||
+ !!rsnd_io_to_mod_mix(io) ||
+ !!rsnd_io_to_mod_ctu(io);
+ int id = rsnd_mod_id(mod);
+ int busif = rsnd_mod_id_sub(rsnd_io_to_mod_ssiu(io));
+ struct dma_addr {
+ dma_addr_t out_addr;
+ dma_addr_t in_addr;
+ } dma_addrs[3][2][3] = {
+ /* SRC */
+ /* Capture */
+ {{{ 0, 0 },
+ { RDMA_SRC_O_N(src, id), RDMA_SRC_I_P(src, id) },
+ { RDMA_CMD_O_N(src, id), RDMA_SRC_I_P(src, id) } },
+ /* Playback */
+ {{ 0, 0, },
+ { RDMA_SRC_O_P(src, id), RDMA_SRC_I_N(src, id) },
+ { RDMA_CMD_O_P(src, id), RDMA_SRC_I_N(src, id) } }
+ },
+ /* SSI */
+ /* Capture */
+ {{{ RDMA_SSI_O_N(ssi, id), 0 },
+ { RDMA_SSIU_O_P(ssi, id, busif), 0 },
+ { RDMA_SSIU_O_P(ssi, id, busif), 0 } },
+ /* Playback */
+ {{ 0, RDMA_SSI_I_N(ssi, id) },
+ { 0, RDMA_SSIU_I_P(ssi, id, busif) },
+ { 0, RDMA_SSIU_I_P(ssi, id, busif) } }
+ },
+ /* SSIU */
+ /* Capture */
+ {{{ RDMA_SSIU_O_N(ssi, id, busif), 0 },
+ { RDMA_SSIU_O_P(ssi, id, busif), 0 },
+ { RDMA_SSIU_O_P(ssi, id, busif), 0 } },
+ /* Playback */
+ {{ 0, RDMA_SSIU_I_N(ssi, id, busif) },
+ { 0, RDMA_SSIU_I_P(ssi, id, busif) },
+ { 0, RDMA_SSIU_I_P(ssi, id, busif) } } },
+ };
+
+ /*
+ * FIXME
+ *
+ * We can't support SSI9-4/5/6/7, because its address is
+ * out of calculation rule
+ */
+ if ((id == 9) && (busif >= 4))
+ dev_err(dev, "This driver doesn't support SSI%d-%d, so far",
+ id, busif);
+
+ /* it shouldn't happen */
+ if (use_cmd && !use_src)
+ dev_err(dev, "DVC is selected without SRC\n");
+
+ /* use SSIU or SSI ? */
+ if (is_ssi && rsnd_ssi_use_busif(io))
+ is_ssi++;
+
+ return (is_from) ?
+ dma_addrs[is_ssi][is_play][use_src + use_cmd].out_addr :
+ dma_addrs[is_ssi][is_play][use_src + use_cmd].in_addr;
+}
+
+static dma_addr_t rsnd_dma_addr(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod,
+ int is_play, int is_from)
+{
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+
+ /*
+ * gen1 uses default DMA addr
+ */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ if (!mod)
+ return 0;
+
+ return rsnd_gen2_dma_addr(io, mod, is_play, is_from);
+}
+
+#define MOD_MAX (RSND_MOD_MAX + 1) /* +Memory */
+static void rsnd_dma_of_path(struct rsnd_mod *this,
+ struct rsnd_dai_stream *io,
+ int is_play,
+ struct rsnd_mod **mod_from,
+ struct rsnd_mod **mod_to)
+{
+ struct rsnd_mod *ssi;
+ struct rsnd_mod *src = rsnd_io_to_mod_src(io);
+ struct rsnd_mod *ctu = rsnd_io_to_mod_ctu(io);
+ struct rsnd_mod *mix = rsnd_io_to_mod_mix(io);
+ struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
+ struct rsnd_mod *mod[MOD_MAX];
+ struct rsnd_mod *mod_start, *mod_end;
+ struct rsnd_priv *priv = rsnd_mod_to_priv(this);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int nr, i, idx;
+
+ /*
+ * It should use "rcar_sound,ssiu" on DT.
+ * But, we need to keep compatibility for old version.
+ *
+ * If it has "rcar_sound.ssiu", it will be used.
+ * If not, "rcar_sound.ssi" will be used.
+ * see
+ * rsnd_ssiu_dma_req()
+ * rsnd_ssi_dma_req()
+ */
+ if (rsnd_ssiu_of_node(priv)) {
+ struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io);
+
+ /* use SSIU */
+ ssi = ssiu;
+ if (this == rsnd_io_to_mod_ssi(io))
+ this = ssiu;
+ } else {
+ /* keep compatible, use SSI */
+ ssi = rsnd_io_to_mod_ssi(io);
+ }
+
+ if (!ssi)
+ return;
+
+ nr = 0;
+ for (i = 0; i < MOD_MAX; i++) {
+ mod[i] = NULL;
+ nr += !!rsnd_io_to_mod(io, i);
+ }
+
+ /*
+ * [S] -*-> [E]
+ * [S] -*-> SRC -o-> [E]
+ * [S] -*-> SRC -> DVC -o-> [E]
+ * [S] -*-> SRC -> CTU -> MIX -> DVC -o-> [E]
+ *
+ * playback [S] = mem
+ * [E] = SSI
+ *
+ * capture [S] = SSI
+ * [E] = mem
+ *
+ * -*-> Audio DMAC
+ * -o-> Audio DMAC peri peri
+ */
+ mod_start = (is_play) ? NULL : ssi;
+ mod_end = (is_play) ? ssi : NULL;
+
+ idx = 0;
+ mod[idx++] = mod_start;
+ for (i = 1; i < nr; i++) {
+ if (src) {
+ mod[idx++] = src;
+ src = NULL;
+ } else if (ctu) {
+ mod[idx++] = ctu;
+ ctu = NULL;
+ } else if (mix) {
+ mod[idx++] = mix;
+ mix = NULL;
+ } else if (dvc) {
+ mod[idx++] = dvc;
+ dvc = NULL;
+ }
+ }
+ mod[idx] = mod_end;
+
+ /*
+ * | SSI | SRC |
+ * -------------+-----+-----+
+ * is_play | o | * |
+ * !is_play | * | o |
+ */
+ if ((this == ssi) == (is_play)) {
+ *mod_from = mod[idx - 1];
+ *mod_to = mod[idx];
+ } else {
+ *mod_from = mod[0];
+ *mod_to = mod[1];
+ }
+
+ dev_dbg(dev, "module connection (this is %s)\n", rsnd_mod_name(this));
+ for (i = 0; i <= idx; i++) {
+ dev_dbg(dev, " %s%s\n",
+ rsnd_mod_name(mod[i] ? mod[i] : &mem),
+ (mod[i] == *mod_from) ? " from" :
+ (mod[i] == *mod_to) ? " to" : "");
+ }
+}
+
+static int rsnd_dma_alloc(struct rsnd_dai_stream *io, struct rsnd_mod *mod,
+ struct rsnd_mod **dma_mod)
+{
+ struct rsnd_mod *mod_from = NULL;
+ struct rsnd_mod *mod_to = NULL;
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct rsnd_dma_ctrl *dmac = rsnd_priv_to_dmac(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dma *dma;
+ struct rsnd_mod_ops *ops;
+ enum rsnd_mod_type type;
+ int (*attach)(struct rsnd_dai_stream *io, struct rsnd_dma *dma,
+ struct rsnd_mod *mod_from, struct rsnd_mod *mod_to);
+ int is_play = rsnd_io_is_play(io);
+ int ret, dma_id;
+
+ /*
+ * DMA failed. try to PIO mode
+ * see
+ * rsnd_ssi_fallback()
+ * rsnd_rdai_continuance_probe()
+ */
+ if (!dmac)
+ return -EAGAIN;
+
+ rsnd_dma_of_path(mod, io, is_play, &mod_from, &mod_to);
+
+ /* for Gen2 or later */
+ if (mod_from && mod_to) {
+ ops = &rsnd_dmapp_ops;
+ attach = rsnd_dmapp_attach;
+ dma_id = dmac->dmapp_num;
+ type = RSND_MOD_AUDMAPP;
+ } else {
+ ops = &rsnd_dmaen_ops;
+ attach = rsnd_dmaen_attach;
+ dma_id = dmac->dmaen_num;
+ type = RSND_MOD_AUDMA;
+ }
+
+ /* for Gen1, overwrite */
+ if (rsnd_is_gen1(priv)) {
+ ops = &rsnd_dmaen_ops;
+ attach = rsnd_dmaen_attach;
+ dma_id = dmac->dmaen_num;
+ type = RSND_MOD_AUDMA;
+ }
+
+ dma = devm_kzalloc(dev, sizeof(*dma), GFP_KERNEL);
+ if (!dma)
+ return -ENOMEM;
+
+ *dma_mod = rsnd_mod_get(dma);
+
+ ret = rsnd_mod_init(priv, *dma_mod, ops, NULL,
+ type, dma_id);
+ if (ret < 0)
+ return ret;
+
+ dev_dbg(dev, "%s %s -> %s\n",
+ rsnd_mod_name(*dma_mod),
+ rsnd_mod_name(mod_from ? mod_from : &mem),
+ rsnd_mod_name(mod_to ? mod_to : &mem));
+
+ ret = attach(io, dma, mod_from, mod_to);
+ if (ret < 0)
+ return ret;
+
+ dma->src_addr = rsnd_dma_addr(io, mod_from, is_play, 1);
+ dma->dst_addr = rsnd_dma_addr(io, mod_to, is_play, 0);
+ dma->mod_from = mod_from;
+ dma->mod_to = mod_to;
+
+ return 0;
+}
+
+int rsnd_dma_attach(struct rsnd_dai_stream *io, struct rsnd_mod *mod,
+ struct rsnd_mod **dma_mod)
+{
+ if (!(*dma_mod)) {
+ int ret = rsnd_dma_alloc(io, mod, dma_mod);
+
+ if (ret < 0)
+ return ret;
+ }
+
+ return rsnd_dai_connect(*dma_mod, io, (*dma_mod)->type);
+}
+
+int rsnd_dma_probe(struct rsnd_priv *priv)
+{
+ struct platform_device *pdev = rsnd_priv_to_pdev(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dma_ctrl *dmac;
+ struct resource *res;
+
+ /*
+ * for Gen1
+ */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ /*
+ * for Gen2 or later
+ */
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "audmapp");
+ dmac = devm_kzalloc(dev, sizeof(*dmac), GFP_KERNEL);
+ if (!dmac || !res) {
+ dev_err(dev, "dma allocate failed\n");
+ return 0; /* it will be PIO mode */
+ }
+
+ dmac->dmapp_num = 0;
+ dmac->ppres = res->start;
+ dmac->ppbase = devm_ioremap_resource(dev, res);
+ if (IS_ERR(dmac->ppbase))
+ return PTR_ERR(dmac->ppbase);
+
+ priv->dma = dmac;
+
+ /* dummy mem mod for debug */
+ return rsnd_mod_init(NULL, &mem, &mem_ops, NULL, 0, 0);
+}
diff --git a/sound/soc/sh/rcar/dvc.c b/sound/soc/sh/rcar/dvc.c
new file mode 100644
index 000000000..16befcbc3
--- /dev/null
+++ b/sound/soc/sh/rcar/dvc.c
@@ -0,0 +1,396 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Renesas R-Car DVC support
+//
+// Copyright (C) 2014 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+/*
+ * Playback Volume
+ * amixer set "DVC Out" 100%
+ *
+ * Capture Volume
+ * amixer set "DVC In" 100%
+ *
+ * Playback Mute
+ * amixer set "DVC Out Mute" on
+ *
+ * Capture Mute
+ * amixer set "DVC In Mute" on
+ *
+ * Volume Ramp
+ * amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps"
+ * amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps"
+ * amixer set "DVC Out Ramp" on
+ * aplay xxx.wav &
+ * amixer set "DVC Out" 80% // Volume Down
+ * amixer set "DVC Out" 100% // Volume Up
+ */
+
+#include "rsnd.h"
+
+#define RSND_DVC_NAME_SIZE 16
+
+#define DVC_NAME "dvc"
+
+struct rsnd_dvc {
+ struct rsnd_mod mod;
+ struct rsnd_kctrl_cfg_m volume;
+ struct rsnd_kctrl_cfg_m mute;
+ struct rsnd_kctrl_cfg_s ren; /* Ramp Enable */
+ struct rsnd_kctrl_cfg_s rup; /* Ramp Rate Up */
+ struct rsnd_kctrl_cfg_s rdown; /* Ramp Rate Down */
+};
+
+#define rsnd_dvc_get(priv, id) ((struct rsnd_dvc *)(priv->dvc) + id)
+#define rsnd_dvc_nr(priv) ((priv)->dvc_nr)
+
+#define rsnd_mod_to_dvc(_mod) \
+ container_of((_mod), struct rsnd_dvc, mod)
+
+#define for_each_rsnd_dvc(pos, priv, i) \
+ for ((i) = 0; \
+ ((i) < rsnd_dvc_nr(priv)) && \
+ ((pos) = (struct rsnd_dvc *)(priv)->dvc + i); \
+ i++)
+
+static void rsnd_dvc_activation(struct rsnd_mod *mod)
+{
+ rsnd_mod_write(mod, DVC_SWRSR, 0);
+ rsnd_mod_write(mod, DVC_SWRSR, 1);
+}
+
+static void rsnd_dvc_halt(struct rsnd_mod *mod)
+{
+ rsnd_mod_write(mod, DVC_DVUIR, 1);
+ rsnd_mod_write(mod, DVC_SWRSR, 0);
+}
+
+#define rsnd_dvc_get_vrpdr(dvc) (rsnd_kctrl_vals(dvc->rup) << 8 | \
+ rsnd_kctrl_vals(dvc->rdown))
+#define rsnd_dvc_get_vrdbr(dvc) (0x3ff - (rsnd_kctrl_valm(dvc->volume, 0) >> 13))
+
+static void rsnd_dvc_volume_parameter(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
+ u32 val[RSND_MAX_CHANNELS];
+ int i;
+
+ /* Enable Ramp */
+ if (rsnd_kctrl_vals(dvc->ren))
+ for (i = 0; i < RSND_MAX_CHANNELS; i++)
+ val[i] = rsnd_kctrl_max(dvc->volume);
+ else
+ for (i = 0; i < RSND_MAX_CHANNELS; i++)
+ val[i] = rsnd_kctrl_valm(dvc->volume, i);
+
+ /* Enable Digital Volume */
+ for (i = 0; i < RSND_MAX_CHANNELS; i++)
+ rsnd_mod_write(mod, DVC_VOLxR(i), val[i]);
+}
+
+static void rsnd_dvc_volume_init(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
+ u32 adinr = 0;
+ u32 dvucr = 0;
+ u32 vrctr = 0;
+ u32 vrpdr = 0;
+ u32 vrdbr = 0;
+
+ adinr = rsnd_get_adinr_bit(mod, io) |
+ rsnd_runtime_channel_after_ctu(io);
+
+ /* Enable Digital Volume, Zero Cross Mute Mode */
+ dvucr |= 0x101;
+
+ /* Enable Ramp */
+ if (rsnd_kctrl_vals(dvc->ren)) {
+ dvucr |= 0x10;
+
+ /*
+ * FIXME !!
+ * use scale-downed Digital Volume
+ * as Volume Ramp
+ * 7F FFFF -> 3FF
+ */
+ vrctr = 0xff;
+ vrpdr = rsnd_dvc_get_vrpdr(dvc);
+ vrdbr = rsnd_dvc_get_vrdbr(dvc);
+ }
+
+ /* Initialize operation */
+ rsnd_mod_write(mod, DVC_DVUIR, 1);
+
+ /* General Information */
+ rsnd_mod_write(mod, DVC_ADINR, adinr);
+ rsnd_mod_write(mod, DVC_DVUCR, dvucr);
+
+ /* Volume Ramp Parameter */
+ rsnd_mod_write(mod, DVC_VRCTR, vrctr);
+ rsnd_mod_write(mod, DVC_VRPDR, vrpdr);
+ rsnd_mod_write(mod, DVC_VRDBR, vrdbr);
+
+ /* Digital Volume Function Parameter */
+ rsnd_dvc_volume_parameter(io, mod);
+
+ /* cancel operation */
+ rsnd_mod_write(mod, DVC_DVUIR, 0);
+}
+
+static void rsnd_dvc_volume_update(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
+ u32 zcmcr = 0;
+ u32 vrpdr = 0;
+ u32 vrdbr = 0;
+ int i;
+
+ for (i = 0; i < rsnd_kctrl_size(dvc->mute); i++)
+ zcmcr |= (!!rsnd_kctrl_valm(dvc->mute, i)) << i;
+
+ if (rsnd_kctrl_vals(dvc->ren)) {
+ vrpdr = rsnd_dvc_get_vrpdr(dvc);
+ vrdbr = rsnd_dvc_get_vrdbr(dvc);
+ }
+
+ /* Disable DVC Register access */
+ rsnd_mod_write(mod, DVC_DVUER, 0);
+
+ /* Zero Cross Mute Function */
+ rsnd_mod_write(mod, DVC_ZCMCR, zcmcr);
+
+ /* Volume Ramp Function */
+ rsnd_mod_write(mod, DVC_VRPDR, vrpdr);
+ rsnd_mod_write(mod, DVC_VRDBR, vrdbr);
+ /* add DVC_VRWTR here */
+
+ /* Digital Volume Function Parameter */
+ rsnd_dvc_volume_parameter(io, mod);
+
+ /* Enable DVC Register access */
+ rsnd_mod_write(mod, DVC_DVUER, 1);
+}
+
+static int rsnd_dvc_probe_(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ return rsnd_cmd_attach(io, rsnd_mod_id(mod));
+}
+
+static int rsnd_dvc_init(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ int ret;
+
+ ret = rsnd_mod_power_on(mod);
+ if (ret < 0)
+ return ret;
+
+ rsnd_dvc_activation(mod);
+
+ rsnd_dvc_volume_init(io, mod);
+
+ rsnd_dvc_volume_update(io, mod);
+
+ return 0;
+}
+
+static int rsnd_dvc_quit(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ rsnd_dvc_halt(mod);
+
+ rsnd_mod_power_off(mod);
+
+ return 0;
+}
+
+static int rsnd_dvc_pcm_new(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct rsnd_dvc *dvc = rsnd_mod_to_dvc(mod);
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ int is_play = rsnd_io_is_play(io);
+ int channels = rsnd_rdai_channels_get(rdai);
+ int ret;
+
+ /* Volume */
+ ret = rsnd_kctrl_new_m(mod, io, rtd,
+ is_play ?
+ "DVC Out Playback Volume" : "DVC In Capture Volume",
+ rsnd_kctrl_accept_anytime,
+ rsnd_dvc_volume_update,
+ &dvc->volume, channels,
+ 0x00800000 - 1);
+ if (ret < 0)
+ return ret;
+
+ /* Mute */
+ ret = rsnd_kctrl_new_m(mod, io, rtd,
+ is_play ?
+ "DVC Out Mute Switch" : "DVC In Mute Switch",
+ rsnd_kctrl_accept_anytime,
+ rsnd_dvc_volume_update,
+ &dvc->mute, channels,
+ 1);
+ if (ret < 0)
+ return ret;
+
+ /* Ramp */
+ ret = rsnd_kctrl_new_s(mod, io, rtd,
+ is_play ?
+ "DVC Out Ramp Switch" : "DVC In Ramp Switch",
+ rsnd_kctrl_accept_anytime,
+ rsnd_dvc_volume_update,
+ &dvc->ren, 1);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_kctrl_new_e(mod, io, rtd,
+ is_play ?
+ "DVC Out Ramp Up Rate" : "DVC In Ramp Up Rate",
+ rsnd_kctrl_accept_anytime,
+ rsnd_dvc_volume_update,
+ &dvc->rup,
+ volume_ramp_rate,
+ VOLUME_RAMP_MAX_DVC);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_kctrl_new_e(mod, io, rtd,
+ is_play ?
+ "DVC Out Ramp Down Rate" : "DVC In Ramp Down Rate",
+ rsnd_kctrl_accept_anytime,
+ rsnd_dvc_volume_update,
+ &dvc->rdown,
+ volume_ramp_rate,
+ VOLUME_RAMP_MAX_DVC);
+
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct dma_chan *rsnd_dvc_dma_req(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+
+ return rsnd_dma_request_channel(rsnd_dvc_of_node(priv),
+ DVC_NAME, mod, "tx");
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void rsnd_dvc_debug_info(struct seq_file *m,
+ struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU,
+ 0xe00 + rsnd_mod_id(mod) * 0x100, 0x60);
+}
+#define DEBUG_INFO .debug_info = rsnd_dvc_debug_info
+#else
+#define DEBUG_INFO
+#endif
+
+static struct rsnd_mod_ops rsnd_dvc_ops = {
+ .name = DVC_NAME,
+ .dma_req = rsnd_dvc_dma_req,
+ .probe = rsnd_dvc_probe_,
+ .init = rsnd_dvc_init,
+ .quit = rsnd_dvc_quit,
+ .pcm_new = rsnd_dvc_pcm_new,
+ .get_status = rsnd_mod_get_status,
+ DEBUG_INFO
+};
+
+struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id)
+{
+ if (WARN_ON(id < 0 || id >= rsnd_dvc_nr(priv)))
+ id = 0;
+
+ return rsnd_mod_get(rsnd_dvc_get(priv, id));
+}
+
+int rsnd_dvc_probe(struct rsnd_priv *priv)
+{
+ struct device_node *node;
+ struct device_node *np;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dvc *dvc;
+ struct clk *clk;
+ char name[RSND_DVC_NAME_SIZE];
+ int i, nr, ret;
+
+ /* This driver doesn't support Gen1 at this point */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ node = rsnd_dvc_of_node(priv);
+ if (!node)
+ return 0; /* not used is not error */
+
+ nr = of_get_child_count(node);
+ if (!nr) {
+ ret = -EINVAL;
+ goto rsnd_dvc_probe_done;
+ }
+
+ dvc = devm_kcalloc(dev, nr, sizeof(*dvc), GFP_KERNEL);
+ if (!dvc) {
+ ret = -ENOMEM;
+ goto rsnd_dvc_probe_done;
+ }
+
+ priv->dvc_nr = nr;
+ priv->dvc = dvc;
+
+ i = 0;
+ ret = 0;
+ for_each_child_of_node(node, np) {
+ dvc = rsnd_dvc_get(priv, i);
+
+ snprintf(name, RSND_DVC_NAME_SIZE, "%s.%d",
+ DVC_NAME, i);
+
+ clk = devm_clk_get(dev, name);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ of_node_put(np);
+ goto rsnd_dvc_probe_done;
+ }
+
+ ret = rsnd_mod_init(priv, rsnd_mod_get(dvc), &rsnd_dvc_ops,
+ clk, RSND_MOD_DVC, i);
+ if (ret) {
+ of_node_put(np);
+ goto rsnd_dvc_probe_done;
+ }
+
+ i++;
+ }
+
+rsnd_dvc_probe_done:
+ of_node_put(node);
+
+ return ret;
+}
+
+void rsnd_dvc_remove(struct rsnd_priv *priv)
+{
+ struct rsnd_dvc *dvc;
+ int i;
+
+ for_each_rsnd_dvc(dvc, priv, i) {
+ rsnd_mod_quit(rsnd_mod_get(dvc));
+ }
+}
diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c
new file mode 100644
index 000000000..925565baa
--- /dev/null
+++ b/sound/soc/sh/rcar/gen.c
@@ -0,0 +1,492 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Renesas R-Car Gen1 SRU/SSI support
+//
+// Copyright (C) 2013 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+/*
+ * #define DEBUG
+ *
+ * you can also add below in
+ * ${LINUX}/drivers/base/regmap/regmap.c
+ * for regmap debug
+ *
+ * #define LOG_DEVICE "xxxx.rcar_sound"
+ */
+
+#include "rsnd.h"
+
+struct rsnd_gen {
+ struct rsnd_gen_ops *ops;
+
+ /* RSND_BASE_MAX base */
+ void __iomem *base[RSND_BASE_MAX];
+ phys_addr_t res[RSND_BASE_MAX];
+ struct regmap *regmap[RSND_BASE_MAX];
+
+ /* RSND_REG_MAX base */
+ struct regmap_field *regs[REG_MAX];
+ const char *reg_name[REG_MAX];
+};
+
+#define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen)
+#define rsnd_reg_name(gen, id) ((gen)->reg_name[id])
+
+struct rsnd_regmap_field_conf {
+ int idx;
+ unsigned int reg_offset;
+ unsigned int id_offset;
+ const char *reg_name;
+};
+
+#define RSND_REG_SET(id, offset, _id_offset, n) \
+{ \
+ .idx = id, \
+ .reg_offset = offset, \
+ .id_offset = _id_offset, \
+ .reg_name = n, \
+}
+/* single address mapping */
+#define RSND_GEN_S_REG(id, offset) \
+ RSND_REG_SET(id, offset, 0, #id)
+
+/* multi address mapping */
+#define RSND_GEN_M_REG(id, offset, _id_offset) \
+ RSND_REG_SET(id, offset, _id_offset, #id)
+
+/*
+ * basic function
+ */
+static int rsnd_is_accessible_reg(struct rsnd_priv *priv,
+ struct rsnd_gen *gen, enum rsnd_reg reg)
+{
+ if (!gen->regs[reg]) {
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dev_err(dev, "unsupported register access %x\n", reg);
+ return 0;
+ }
+
+ return 1;
+}
+
+static int rsnd_mod_id_cmd(struct rsnd_mod *mod)
+{
+ if (mod->ops->id_cmd)
+ return mod->ops->id_cmd(mod);
+
+ return rsnd_mod_id(mod);
+}
+
+u32 rsnd_mod_read(struct rsnd_mod *mod, enum rsnd_reg reg)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+ u32 val;
+
+ if (!rsnd_is_accessible_reg(priv, gen, reg))
+ return 0;
+
+ regmap_fields_read(gen->regs[reg], rsnd_mod_id_cmd(mod), &val);
+
+ dev_dbg(dev, "r %s - %-18s (%4d) : %08x\n",
+ rsnd_mod_name(mod),
+ rsnd_reg_name(gen, reg), reg, val);
+
+ return val;
+}
+
+void rsnd_mod_write(struct rsnd_mod *mod,
+ enum rsnd_reg reg, u32 data)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+ if (!rsnd_is_accessible_reg(priv, gen, reg))
+ return;
+
+ regmap_fields_force_write(gen->regs[reg], rsnd_mod_id_cmd(mod), data);
+
+ dev_dbg(dev, "w %s - %-18s (%4d) : %08x\n",
+ rsnd_mod_name(mod),
+ rsnd_reg_name(gen, reg), reg, data);
+}
+
+void rsnd_mod_bset(struct rsnd_mod *mod,
+ enum rsnd_reg reg, u32 mask, u32 data)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+ if (!rsnd_is_accessible_reg(priv, gen, reg))
+ return;
+
+ regmap_fields_force_update_bits(gen->regs[reg],
+ rsnd_mod_id_cmd(mod), mask, data);
+
+ dev_dbg(dev, "b %s - %-18s (%4d) : %08x/%08x\n",
+ rsnd_mod_name(mod),
+ rsnd_reg_name(gen, reg), reg, data, mask);
+
+}
+
+phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id)
+{
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+ return gen->res[reg_id];
+}
+
+#ifdef CONFIG_DEBUG_FS
+void __iomem *rsnd_gen_get_base_addr(struct rsnd_priv *priv, int reg_id)
+{
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+ return gen->base[reg_id];
+}
+#endif
+
+#define rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf) \
+ _rsnd_gen_regmap_init(priv, id_size, reg_id, name, conf, ARRAY_SIZE(conf))
+static int _rsnd_gen_regmap_init(struct rsnd_priv *priv,
+ int id_size,
+ int reg_id,
+ const char *name,
+ const struct rsnd_regmap_field_conf *conf,
+ int conf_size)
+{
+ struct platform_device *pdev = rsnd_priv_to_pdev(priv);
+ struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct resource *res;
+ struct regmap_config regc;
+ struct regmap_field *regs;
+ struct regmap *regmap;
+ struct reg_field regf;
+ void __iomem *base;
+ int i;
+
+ memset(&regc, 0, sizeof(regc));
+ regc.reg_bits = 32;
+ regc.val_bits = 32;
+ regc.reg_stride = 4;
+ regc.name = name;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
+ if (!res)
+ res = platform_get_resource(pdev, IORESOURCE_MEM, reg_id);
+ if (!res)
+ return -ENODEV;
+
+ base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ regmap = devm_regmap_init_mmio(dev, base, &regc);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ /* RSND_BASE_MAX base */
+ gen->base[reg_id] = base;
+ gen->regmap[reg_id] = regmap;
+ gen->res[reg_id] = res->start;
+
+ for (i = 0; i < conf_size; i++) {
+
+ regf.reg = conf[i].reg_offset;
+ regf.id_offset = conf[i].id_offset;
+ regf.lsb = 0;
+ regf.msb = 31;
+ regf.id_size = id_size;
+
+ regs = devm_regmap_field_alloc(dev, regmap, regf);
+ if (IS_ERR(regs))
+ return PTR_ERR(regs);
+
+ /* RSND_REG_MAX base */
+ gen->regs[conf[i].idx] = regs;
+ gen->reg_name[conf[i].idx] = conf[i].reg_name;
+ }
+
+ return 0;
+}
+
+/*
+ * Gen2
+ */
+static int rsnd_gen2_probe(struct rsnd_priv *priv)
+{
+ static const struct rsnd_regmap_field_conf conf_ssiu[] = {
+ RSND_GEN_S_REG(SSI_MODE0, 0x800),
+ RSND_GEN_S_REG(SSI_MODE1, 0x804),
+ RSND_GEN_S_REG(SSI_MODE2, 0x808),
+ RSND_GEN_S_REG(SSI_CONTROL, 0x810),
+ RSND_GEN_S_REG(SSI_SYS_STATUS0, 0x840),
+ RSND_GEN_S_REG(SSI_SYS_STATUS1, 0x844),
+ RSND_GEN_S_REG(SSI_SYS_STATUS2, 0x848),
+ RSND_GEN_S_REG(SSI_SYS_STATUS3, 0x84c),
+ RSND_GEN_S_REG(SSI_SYS_STATUS4, 0x880),
+ RSND_GEN_S_REG(SSI_SYS_STATUS5, 0x884),
+ RSND_GEN_S_REG(SSI_SYS_STATUS6, 0x888),
+ RSND_GEN_S_REG(SSI_SYS_STATUS7, 0x88c),
+ RSND_GEN_S_REG(SSI_SYS_INT_ENABLE0, 0x850),
+ RSND_GEN_S_REG(SSI_SYS_INT_ENABLE1, 0x854),
+ RSND_GEN_S_REG(SSI_SYS_INT_ENABLE2, 0x858),
+ RSND_GEN_S_REG(SSI_SYS_INT_ENABLE3, 0x85c),
+ RSND_GEN_S_REG(SSI_SYS_INT_ENABLE4, 0x890),
+ RSND_GEN_S_REG(SSI_SYS_INT_ENABLE5, 0x894),
+ RSND_GEN_S_REG(SSI_SYS_INT_ENABLE6, 0x898),
+ RSND_GEN_S_REG(SSI_SYS_INT_ENABLE7, 0x89c),
+ RSND_GEN_S_REG(HDMI0_SEL, 0x9e0),
+ RSND_GEN_S_REG(HDMI1_SEL, 0x9e4),
+
+ /* FIXME: it needs SSI_MODE2/3 in the future */
+ RSND_GEN_M_REG(SSI_BUSIF0_MODE, 0x0, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF0_ADINR, 0x4, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF0_DALIGN, 0x8, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF1_MODE, 0x20, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF1_ADINR, 0x24, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF1_DALIGN, 0x28, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF2_MODE, 0x40, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF2_ADINR, 0x44, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF2_DALIGN, 0x48, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF3_MODE, 0x60, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF3_ADINR, 0x64, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF3_DALIGN, 0x68, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF4_MODE, 0x500, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF4_ADINR, 0x504, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF4_DALIGN, 0x508, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF5_MODE, 0x520, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF5_ADINR, 0x524, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF5_DALIGN, 0x528, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF6_MODE, 0x540, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF6_ADINR, 0x544, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF6_DALIGN, 0x548, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF7_MODE, 0x560, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF7_ADINR, 0x564, 0x80),
+ RSND_GEN_M_REG(SSI_BUSIF7_DALIGN, 0x568, 0x80),
+ RSND_GEN_M_REG(SSI_MODE, 0xc, 0x80),
+ RSND_GEN_M_REG(SSI_CTRL, 0x10, 0x80),
+ RSND_GEN_M_REG(SSI_INT_ENABLE, 0x18, 0x80),
+ RSND_GEN_S_REG(SSI9_BUSIF0_MODE, 0x48c),
+ RSND_GEN_S_REG(SSI9_BUSIF0_ADINR, 0x484),
+ RSND_GEN_S_REG(SSI9_BUSIF0_DALIGN, 0x488),
+ RSND_GEN_S_REG(SSI9_BUSIF1_MODE, 0x4a0),
+ RSND_GEN_S_REG(SSI9_BUSIF1_ADINR, 0x4a4),
+ RSND_GEN_S_REG(SSI9_BUSIF1_DALIGN, 0x4a8),
+ RSND_GEN_S_REG(SSI9_BUSIF2_MODE, 0x4c0),
+ RSND_GEN_S_REG(SSI9_BUSIF2_ADINR, 0x4c4),
+ RSND_GEN_S_REG(SSI9_BUSIF2_DALIGN, 0x4c8),
+ RSND_GEN_S_REG(SSI9_BUSIF3_MODE, 0x4e0),
+ RSND_GEN_S_REG(SSI9_BUSIF3_ADINR, 0x4e4),
+ RSND_GEN_S_REG(SSI9_BUSIF3_DALIGN, 0x4e8),
+ RSND_GEN_S_REG(SSI9_BUSIF4_MODE, 0xd80),
+ RSND_GEN_S_REG(SSI9_BUSIF4_ADINR, 0xd84),
+ RSND_GEN_S_REG(SSI9_BUSIF4_DALIGN, 0xd88),
+ RSND_GEN_S_REG(SSI9_BUSIF5_MODE, 0xda0),
+ RSND_GEN_S_REG(SSI9_BUSIF5_ADINR, 0xda4),
+ RSND_GEN_S_REG(SSI9_BUSIF5_DALIGN, 0xda8),
+ RSND_GEN_S_REG(SSI9_BUSIF6_MODE, 0xdc0),
+ RSND_GEN_S_REG(SSI9_BUSIF6_ADINR, 0xdc4),
+ RSND_GEN_S_REG(SSI9_BUSIF6_DALIGN, 0xdc8),
+ RSND_GEN_S_REG(SSI9_BUSIF7_MODE, 0xde0),
+ RSND_GEN_S_REG(SSI9_BUSIF7_ADINR, 0xde4),
+ RSND_GEN_S_REG(SSI9_BUSIF7_DALIGN, 0xde8),
+ };
+
+ static const struct rsnd_regmap_field_conf conf_scu[] = {
+ RSND_GEN_M_REG(SRC_I_BUSIF_MODE,0x0, 0x20),
+ RSND_GEN_M_REG(SRC_O_BUSIF_MODE,0x4, 0x20),
+ RSND_GEN_M_REG(SRC_BUSIF_DALIGN,0x8, 0x20),
+ RSND_GEN_M_REG(SRC_ROUTE_MODE0, 0xc, 0x20),
+ RSND_GEN_M_REG(SRC_CTRL, 0x10, 0x20),
+ RSND_GEN_M_REG(SRC_INT_ENABLE0, 0x18, 0x20),
+ RSND_GEN_M_REG(CMD_BUSIF_MODE, 0x184, 0x20),
+ RSND_GEN_M_REG(CMD_BUSIF_DALIGN,0x188, 0x20),
+ RSND_GEN_M_REG(CMD_ROUTE_SLCT, 0x18c, 0x20),
+ RSND_GEN_M_REG(CMD_CTRL, 0x190, 0x20),
+ RSND_GEN_S_REG(SCU_SYS_STATUS0, 0x1c8),
+ RSND_GEN_S_REG(SCU_SYS_INT_EN0, 0x1cc),
+ RSND_GEN_S_REG(SCU_SYS_STATUS1, 0x1d0),
+ RSND_GEN_S_REG(SCU_SYS_INT_EN1, 0x1d4),
+ RSND_GEN_M_REG(SRC_SWRSR, 0x200, 0x40),
+ RSND_GEN_M_REG(SRC_SRCIR, 0x204, 0x40),
+ RSND_GEN_M_REG(SRC_ADINR, 0x214, 0x40),
+ RSND_GEN_M_REG(SRC_IFSCR, 0x21c, 0x40),
+ RSND_GEN_M_REG(SRC_IFSVR, 0x220, 0x40),
+ RSND_GEN_M_REG(SRC_SRCCR, 0x224, 0x40),
+ RSND_GEN_M_REG(SRC_BSDSR, 0x22c, 0x40),
+ RSND_GEN_M_REG(SRC_BSISR, 0x238, 0x40),
+ RSND_GEN_M_REG(CTU_SWRSR, 0x500, 0x100),
+ RSND_GEN_M_REG(CTU_CTUIR, 0x504, 0x100),
+ RSND_GEN_M_REG(CTU_ADINR, 0x508, 0x100),
+ RSND_GEN_M_REG(CTU_CPMDR, 0x510, 0x100),
+ RSND_GEN_M_REG(CTU_SCMDR, 0x514, 0x100),
+ RSND_GEN_M_REG(CTU_SV00R, 0x518, 0x100),
+ RSND_GEN_M_REG(CTU_SV01R, 0x51c, 0x100),
+ RSND_GEN_M_REG(CTU_SV02R, 0x520, 0x100),
+ RSND_GEN_M_REG(CTU_SV03R, 0x524, 0x100),
+ RSND_GEN_M_REG(CTU_SV04R, 0x528, 0x100),
+ RSND_GEN_M_REG(CTU_SV05R, 0x52c, 0x100),
+ RSND_GEN_M_REG(CTU_SV06R, 0x530, 0x100),
+ RSND_GEN_M_REG(CTU_SV07R, 0x534, 0x100),
+ RSND_GEN_M_REG(CTU_SV10R, 0x538, 0x100),
+ RSND_GEN_M_REG(CTU_SV11R, 0x53c, 0x100),
+ RSND_GEN_M_REG(CTU_SV12R, 0x540, 0x100),
+ RSND_GEN_M_REG(CTU_SV13R, 0x544, 0x100),
+ RSND_GEN_M_REG(CTU_SV14R, 0x548, 0x100),
+ RSND_GEN_M_REG(CTU_SV15R, 0x54c, 0x100),
+ RSND_GEN_M_REG(CTU_SV16R, 0x550, 0x100),
+ RSND_GEN_M_REG(CTU_SV17R, 0x554, 0x100),
+ RSND_GEN_M_REG(CTU_SV20R, 0x558, 0x100),
+ RSND_GEN_M_REG(CTU_SV21R, 0x55c, 0x100),
+ RSND_GEN_M_REG(CTU_SV22R, 0x560, 0x100),
+ RSND_GEN_M_REG(CTU_SV23R, 0x564, 0x100),
+ RSND_GEN_M_REG(CTU_SV24R, 0x568, 0x100),
+ RSND_GEN_M_REG(CTU_SV25R, 0x56c, 0x100),
+ RSND_GEN_M_REG(CTU_SV26R, 0x570, 0x100),
+ RSND_GEN_M_REG(CTU_SV27R, 0x574, 0x100),
+ RSND_GEN_M_REG(CTU_SV30R, 0x578, 0x100),
+ RSND_GEN_M_REG(CTU_SV31R, 0x57c, 0x100),
+ RSND_GEN_M_REG(CTU_SV32R, 0x580, 0x100),
+ RSND_GEN_M_REG(CTU_SV33R, 0x584, 0x100),
+ RSND_GEN_M_REG(CTU_SV34R, 0x588, 0x100),
+ RSND_GEN_M_REG(CTU_SV35R, 0x58c, 0x100),
+ RSND_GEN_M_REG(CTU_SV36R, 0x590, 0x100),
+ RSND_GEN_M_REG(CTU_SV37R, 0x594, 0x100),
+ RSND_GEN_M_REG(MIX_SWRSR, 0xd00, 0x40),
+ RSND_GEN_M_REG(MIX_MIXIR, 0xd04, 0x40),
+ RSND_GEN_M_REG(MIX_ADINR, 0xd08, 0x40),
+ RSND_GEN_M_REG(MIX_MIXMR, 0xd10, 0x40),
+ RSND_GEN_M_REG(MIX_MVPDR, 0xd14, 0x40),
+ RSND_GEN_M_REG(MIX_MDBAR, 0xd18, 0x40),
+ RSND_GEN_M_REG(MIX_MDBBR, 0xd1c, 0x40),
+ RSND_GEN_M_REG(MIX_MDBCR, 0xd20, 0x40),
+ RSND_GEN_M_REG(MIX_MDBDR, 0xd24, 0x40),
+ RSND_GEN_M_REG(MIX_MDBER, 0xd28, 0x40),
+ RSND_GEN_M_REG(DVC_SWRSR, 0xe00, 0x100),
+ RSND_GEN_M_REG(DVC_DVUIR, 0xe04, 0x100),
+ RSND_GEN_M_REG(DVC_ADINR, 0xe08, 0x100),
+ RSND_GEN_M_REG(DVC_DVUCR, 0xe10, 0x100),
+ RSND_GEN_M_REG(DVC_ZCMCR, 0xe14, 0x100),
+ RSND_GEN_M_REG(DVC_VRCTR, 0xe18, 0x100),
+ RSND_GEN_M_REG(DVC_VRPDR, 0xe1c, 0x100),
+ RSND_GEN_M_REG(DVC_VRDBR, 0xe20, 0x100),
+ RSND_GEN_M_REG(DVC_VOL0R, 0xe28, 0x100),
+ RSND_GEN_M_REG(DVC_VOL1R, 0xe2c, 0x100),
+ RSND_GEN_M_REG(DVC_VOL2R, 0xe30, 0x100),
+ RSND_GEN_M_REG(DVC_VOL3R, 0xe34, 0x100),
+ RSND_GEN_M_REG(DVC_VOL4R, 0xe38, 0x100),
+ RSND_GEN_M_REG(DVC_VOL5R, 0xe3c, 0x100),
+ RSND_GEN_M_REG(DVC_VOL6R, 0xe40, 0x100),
+ RSND_GEN_M_REG(DVC_VOL7R, 0xe44, 0x100),
+ RSND_GEN_M_REG(DVC_DVUER, 0xe48, 0x100),
+ };
+ static const struct rsnd_regmap_field_conf conf_adg[] = {
+ RSND_GEN_S_REG(BRRA, 0x00),
+ RSND_GEN_S_REG(BRRB, 0x04),
+ RSND_GEN_S_REG(BRGCKR, 0x08),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL2, 0x14),
+ RSND_GEN_S_REG(DIV_EN, 0x30),
+ RSND_GEN_S_REG(SRCIN_TIMSEL0, 0x34),
+ RSND_GEN_S_REG(SRCIN_TIMSEL1, 0x38),
+ RSND_GEN_S_REG(SRCIN_TIMSEL2, 0x3c),
+ RSND_GEN_S_REG(SRCIN_TIMSEL3, 0x40),
+ RSND_GEN_S_REG(SRCIN_TIMSEL4, 0x44),
+ RSND_GEN_S_REG(SRCOUT_TIMSEL0, 0x48),
+ RSND_GEN_S_REG(SRCOUT_TIMSEL1, 0x4c),
+ RSND_GEN_S_REG(SRCOUT_TIMSEL2, 0x50),
+ RSND_GEN_S_REG(SRCOUT_TIMSEL3, 0x54),
+ RSND_GEN_S_REG(SRCOUT_TIMSEL4, 0x58),
+ RSND_GEN_S_REG(CMDOUT_TIMSEL, 0x5c),
+ };
+ static const struct rsnd_regmap_field_conf conf_ssi[] = {
+ RSND_GEN_M_REG(SSICR, 0x00, 0x40),
+ RSND_GEN_M_REG(SSISR, 0x04, 0x40),
+ RSND_GEN_M_REG(SSITDR, 0x08, 0x40),
+ RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40),
+ RSND_GEN_M_REG(SSIWSR, 0x20, 0x40),
+ };
+ int ret_ssiu;
+ int ret_scu;
+ int ret_adg;
+ int ret_ssi;
+
+ ret_ssiu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSIU, "ssiu", conf_ssiu);
+ ret_scu = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SCU, "scu", conf_scu);
+ ret_adg = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_ADG, "adg", conf_adg);
+ ret_ssi = rsnd_gen_regmap_init(priv, 10, RSND_GEN2_SSI, "ssi", conf_ssi);
+ if (ret_ssiu < 0 ||
+ ret_scu < 0 ||
+ ret_adg < 0 ||
+ ret_ssi < 0)
+ return ret_ssiu | ret_scu | ret_adg | ret_ssi;
+
+ return 0;
+}
+
+/*
+ * Gen1
+ */
+
+static int rsnd_gen1_probe(struct rsnd_priv *priv)
+{
+ static const struct rsnd_regmap_field_conf conf_adg[] = {
+ RSND_GEN_S_REG(BRRA, 0x00),
+ RSND_GEN_S_REG(BRRB, 0x04),
+ RSND_GEN_S_REG(BRGCKR, 0x08),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL0, 0x0c),
+ RSND_GEN_S_REG(AUDIO_CLK_SEL1, 0x10),
+ };
+ static const struct rsnd_regmap_field_conf conf_ssi[] = {
+ RSND_GEN_M_REG(SSICR, 0x00, 0x40),
+ RSND_GEN_M_REG(SSISR, 0x04, 0x40),
+ RSND_GEN_M_REG(SSITDR, 0x08, 0x40),
+ RSND_GEN_M_REG(SSIRDR, 0x0c, 0x40),
+ RSND_GEN_M_REG(SSIWSR, 0x20, 0x40),
+ };
+ int ret_adg;
+ int ret_ssi;
+
+ ret_adg = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_ADG, "adg", conf_adg);
+ ret_ssi = rsnd_gen_regmap_init(priv, 9, RSND_GEN1_SSI, "ssi", conf_ssi);
+ if (ret_adg < 0 ||
+ ret_ssi < 0)
+ return ret_adg | ret_ssi;
+
+ return 0;
+}
+
+/*
+ * Gen
+ */
+int rsnd_gen_probe(struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_gen *gen;
+ int ret;
+
+ gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
+ if (!gen)
+ return -ENOMEM;
+
+ priv->gen = gen;
+
+ ret = -ENODEV;
+ if (rsnd_is_gen1(priv))
+ ret = rsnd_gen1_probe(priv);
+ else if (rsnd_is_gen2(priv) ||
+ rsnd_is_gen3(priv))
+ ret = rsnd_gen2_probe(priv);
+
+ if (ret < 0)
+ dev_err(dev, "unknown generation R-Car sound device\n");
+
+ return ret;
+}
diff --git a/sound/soc/sh/rcar/mix.c b/sound/soc/sh/rcar/mix.c
new file mode 100644
index 000000000..1de0e0858
--- /dev/null
+++ b/sound/soc/sh/rcar/mix.c
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// mix.c
+//
+// Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+/*
+ * CTUn MIXn
+ * +------+ +------+
+ * [SRC3 / SRC6] -> |CTU n0| -> [MIX n0| ->
+ * [SRC4 / SRC9] -> |CTU n1| -> [MIX n1| ->
+ * [SRC0 / SRC1] -> |CTU n2| -> [MIX n2| ->
+ * [SRC2 / SRC5] -> |CTU n3| -> [MIX n3| ->
+ * +------+ +------+
+ *
+ * ex)
+ * DAI0 : playback = <&src0 &ctu02 &mix0 &dvc0 &ssi0>;
+ * DAI1 : playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
+ *
+ * MIX Volume
+ * amixer set "MIX",0 100% // DAI0 Volume
+ * amixer set "MIX",1 100% // DAI1 Volume
+ *
+ * Volume Ramp
+ * amixer set "MIX Ramp Up Rate" "0.125 dB/1 step"
+ * amixer set "MIX Ramp Down Rate" "4 dB/1 step"
+ * amixer set "MIX Ramp" on
+ * aplay xxx.wav &
+ * amixer set "MIX",0 80% // DAI0 Volume Down
+ * amixer set "MIX",1 100% // DAI1 Volume Up
+ */
+
+#include "rsnd.h"
+
+#define MIX_NAME_SIZE 16
+#define MIX_NAME "mix"
+
+struct rsnd_mix {
+ struct rsnd_mod mod;
+ struct rsnd_kctrl_cfg_s volumeA; /* MDBAR */
+ struct rsnd_kctrl_cfg_s volumeB; /* MDBBR */
+ struct rsnd_kctrl_cfg_s volumeC; /* MDBCR */
+ struct rsnd_kctrl_cfg_s volumeD; /* MDBDR */
+ struct rsnd_kctrl_cfg_s ren; /* Ramp Enable */
+ struct rsnd_kctrl_cfg_s rup; /* Ramp Rate Up */
+ struct rsnd_kctrl_cfg_s rdw; /* Ramp Rate Down */
+ u32 flags;
+};
+
+#define ONCE_KCTRL_INITIALIZED (1 << 0)
+#define HAS_VOLA (1 << 1)
+#define HAS_VOLB (1 << 2)
+#define HAS_VOLC (1 << 3)
+#define HAS_VOLD (1 << 4)
+
+#define VOL_MAX 0x3ff
+
+#define rsnd_mod_to_mix(_mod) \
+ container_of((_mod), struct rsnd_mix, mod)
+
+#define rsnd_mix_get(priv, id) ((struct rsnd_mix *)(priv->mix) + id)
+#define rsnd_mix_nr(priv) ((priv)->mix_nr)
+#define for_each_rsnd_mix(pos, priv, i) \
+ for ((i) = 0; \
+ ((i) < rsnd_mix_nr(priv)) && \
+ ((pos) = (struct rsnd_mix *)(priv)->mix + i); \
+ i++)
+
+static void rsnd_mix_activation(struct rsnd_mod *mod)
+{
+ rsnd_mod_write(mod, MIX_SWRSR, 0);
+ rsnd_mod_write(mod, MIX_SWRSR, 1);
+}
+
+static void rsnd_mix_halt(struct rsnd_mod *mod)
+{
+ rsnd_mod_write(mod, MIX_MIXIR, 1);
+ rsnd_mod_write(mod, MIX_SWRSR, 0);
+}
+
+#define rsnd_mix_get_vol(mix, X) \
+ rsnd_flags_has(mix, HAS_VOL##X) ? \
+ (VOL_MAX - rsnd_kctrl_vals(mix->volume##X)) : 0
+static void rsnd_mix_volume_parameter(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_mix *mix = rsnd_mod_to_mix(mod);
+ u32 volA = rsnd_mix_get_vol(mix, A);
+ u32 volB = rsnd_mix_get_vol(mix, B);
+ u32 volC = rsnd_mix_get_vol(mix, C);
+ u32 volD = rsnd_mix_get_vol(mix, D);
+
+ dev_dbg(dev, "MIX A/B/C/D = %02x/%02x/%02x/%02x\n",
+ volA, volB, volC, volD);
+
+ rsnd_mod_write(mod, MIX_MDBAR, volA);
+ rsnd_mod_write(mod, MIX_MDBBR, volB);
+ rsnd_mod_write(mod, MIX_MDBCR, volC);
+ rsnd_mod_write(mod, MIX_MDBDR, volD);
+}
+
+static void rsnd_mix_volume_init(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_mix *mix = rsnd_mod_to_mix(mod);
+
+ rsnd_mod_write(mod, MIX_MIXIR, 1);
+
+ /* General Information */
+ rsnd_mod_write(mod, MIX_ADINR, rsnd_runtime_channel_after_ctu(io));
+
+ /* volume step */
+ rsnd_mod_write(mod, MIX_MIXMR, rsnd_kctrl_vals(mix->ren));
+ rsnd_mod_write(mod, MIX_MVPDR, rsnd_kctrl_vals(mix->rup) << 8 |
+ rsnd_kctrl_vals(mix->rdw));
+
+ /* common volume parameter */
+ rsnd_mix_volume_parameter(io, mod);
+
+ rsnd_mod_write(mod, MIX_MIXIR, 0);
+}
+
+static void rsnd_mix_volume_update(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ /* Disable MIX dB setting */
+ rsnd_mod_write(mod, MIX_MDBER, 0);
+
+ /* common volume parameter */
+ rsnd_mix_volume_parameter(io, mod);
+
+ /* Enable MIX dB setting */
+ rsnd_mod_write(mod, MIX_MDBER, 1);
+}
+
+static int rsnd_mix_probe_(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ return rsnd_cmd_attach(io, rsnd_mod_id(mod));
+}
+
+static int rsnd_mix_init(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ int ret;
+
+ ret = rsnd_mod_power_on(mod);
+ if (ret < 0)
+ return ret;
+
+ rsnd_mix_activation(mod);
+
+ rsnd_mix_volume_init(io, mod);
+
+ rsnd_mix_volume_update(io, mod);
+
+ return 0;
+}
+
+static int rsnd_mix_quit(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ rsnd_mix_halt(mod);
+
+ rsnd_mod_power_off(mod);
+
+ return 0;
+}
+
+static int rsnd_mix_pcm_new(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_mix *mix = rsnd_mod_to_mix(mod);
+ struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
+ struct rsnd_kctrl_cfg_s *volume;
+ int ret;
+
+ switch (rsnd_mod_id(src_mod)) {
+ case 3:
+ case 6: /* MDBAR */
+ volume = &mix->volumeA;
+ rsnd_flags_set(mix, HAS_VOLA);
+ break;
+ case 4:
+ case 9: /* MDBBR */
+ volume = &mix->volumeB;
+ rsnd_flags_set(mix, HAS_VOLB);
+ break;
+ case 0:
+ case 1: /* MDBCR */
+ volume = &mix->volumeC;
+ rsnd_flags_set(mix, HAS_VOLC);
+ break;
+ case 2:
+ case 5: /* MDBDR */
+ volume = &mix->volumeD;
+ rsnd_flags_set(mix, HAS_VOLD);
+ break;
+ default:
+ dev_err(dev, "unknown SRC is connected\n");
+ return -EINVAL;
+ }
+
+ /* Volume */
+ ret = rsnd_kctrl_new_s(mod, io, rtd,
+ "MIX Playback Volume",
+ rsnd_kctrl_accept_anytime,
+ rsnd_mix_volume_update,
+ volume, VOL_MAX);
+ if (ret < 0)
+ return ret;
+ rsnd_kctrl_vals(*volume) = VOL_MAX;
+
+ if (rsnd_flags_has(mix, ONCE_KCTRL_INITIALIZED))
+ return ret;
+
+ /* Ramp */
+ ret = rsnd_kctrl_new_s(mod, io, rtd,
+ "MIX Ramp Switch",
+ rsnd_kctrl_accept_anytime,
+ rsnd_mix_volume_update,
+ &mix->ren, 1);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_kctrl_new_e(mod, io, rtd,
+ "MIX Ramp Up Rate",
+ rsnd_kctrl_accept_anytime,
+ rsnd_mix_volume_update,
+ &mix->rup,
+ volume_ramp_rate,
+ VOLUME_RAMP_MAX_MIX);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_kctrl_new_e(mod, io, rtd,
+ "MIX Ramp Down Rate",
+ rsnd_kctrl_accept_anytime,
+ rsnd_mix_volume_update,
+ &mix->rdw,
+ volume_ramp_rate,
+ VOLUME_RAMP_MAX_MIX);
+
+ rsnd_flags_set(mix, ONCE_KCTRL_INITIALIZED);
+
+ return ret;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void rsnd_mix_debug_info(struct seq_file *m,
+ struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU,
+ 0xd00 + rsnd_mod_id(mod) * 0x40, 0x30);
+}
+#define DEBUG_INFO .debug_info = rsnd_mix_debug_info
+#else
+#define DEBUG_INFO
+#endif
+
+static struct rsnd_mod_ops rsnd_mix_ops = {
+ .name = MIX_NAME,
+ .probe = rsnd_mix_probe_,
+ .init = rsnd_mix_init,
+ .quit = rsnd_mix_quit,
+ .pcm_new = rsnd_mix_pcm_new,
+ .get_status = rsnd_mod_get_status,
+ DEBUG_INFO
+};
+
+struct rsnd_mod *rsnd_mix_mod_get(struct rsnd_priv *priv, int id)
+{
+ if (WARN_ON(id < 0 || id >= rsnd_mix_nr(priv)))
+ id = 0;
+
+ return rsnd_mod_get(rsnd_mix_get(priv, id));
+}
+
+int rsnd_mix_probe(struct rsnd_priv *priv)
+{
+ struct device_node *node;
+ struct device_node *np;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_mix *mix;
+ struct clk *clk;
+ char name[MIX_NAME_SIZE];
+ int i, nr, ret;
+
+ /* This driver doesn't support Gen1 at this point */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ node = rsnd_mix_of_node(priv);
+ if (!node)
+ return 0; /* not used is not error */
+
+ nr = of_get_child_count(node);
+ if (!nr) {
+ ret = -EINVAL;
+ goto rsnd_mix_probe_done;
+ }
+
+ mix = devm_kcalloc(dev, nr, sizeof(*mix), GFP_KERNEL);
+ if (!mix) {
+ ret = -ENOMEM;
+ goto rsnd_mix_probe_done;
+ }
+
+ priv->mix_nr = nr;
+ priv->mix = mix;
+
+ i = 0;
+ ret = 0;
+ for_each_child_of_node(node, np) {
+ mix = rsnd_mix_get(priv, i);
+
+ snprintf(name, MIX_NAME_SIZE, "%s.%d",
+ MIX_NAME, i);
+
+ clk = devm_clk_get(dev, name);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ of_node_put(np);
+ goto rsnd_mix_probe_done;
+ }
+
+ ret = rsnd_mod_init(priv, rsnd_mod_get(mix), &rsnd_mix_ops,
+ clk, RSND_MOD_MIX, i);
+ if (ret) {
+ of_node_put(np);
+ goto rsnd_mix_probe_done;
+ }
+
+ i++;
+ }
+
+rsnd_mix_probe_done:
+ of_node_put(node);
+
+ return ret;
+}
+
+void rsnd_mix_remove(struct rsnd_priv *priv)
+{
+ struct rsnd_mix *mix;
+ int i;
+
+ for_each_rsnd_mix(mix, priv, i) {
+ rsnd_mod_quit(rsnd_mod_get(mix));
+ }
+}
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
new file mode 100644
index 000000000..f8ef6836e
--- /dev/null
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -0,0 +1,915 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Renesas R-Car
+//
+// Copyright (C) 2013 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#ifndef RSND_H
+#define RSND_H
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_graph.h>
+#include <linux/of_irq.h>
+#include <linux/sh_dma.h>
+#include <linux/workqueue.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+#define RSND_GEN1_SRU 0
+#define RSND_GEN1_ADG 1
+#define RSND_GEN1_SSI 2
+
+#define RSND_GEN2_SCU 0
+#define RSND_GEN2_ADG 1
+#define RSND_GEN2_SSIU 2
+#define RSND_GEN2_SSI 3
+
+#define RSND_BASE_MAX 4
+
+/*
+ * pseudo register
+ *
+ * The register address offsets SRU/SCU/SSIU on Gen1/Gen2 are very different.
+ * This driver uses pseudo register in order to hide it.
+ * see gen1/gen2 for detail
+ */
+enum rsnd_reg {
+ /* SCU (MIX/CTU/DVC) */
+ SRC_I_BUSIF_MODE,
+ SRC_O_BUSIF_MODE,
+ SRC_ROUTE_MODE0,
+ SRC_SWRSR,
+ SRC_SRCIR,
+ SRC_ADINR,
+ SRC_IFSCR,
+ SRC_IFSVR,
+ SRC_SRCCR,
+ SRC_CTRL,
+ SRC_BSDSR,
+ SRC_BSISR,
+ SRC_INT_ENABLE0,
+ SRC_BUSIF_DALIGN,
+ SRCIN_TIMSEL0,
+ SRCIN_TIMSEL1,
+ SRCIN_TIMSEL2,
+ SRCIN_TIMSEL3,
+ SRCIN_TIMSEL4,
+ SRCOUT_TIMSEL0,
+ SRCOUT_TIMSEL1,
+ SRCOUT_TIMSEL2,
+ SRCOUT_TIMSEL3,
+ SRCOUT_TIMSEL4,
+ SCU_SYS_STATUS0,
+ SCU_SYS_STATUS1,
+ SCU_SYS_INT_EN0,
+ SCU_SYS_INT_EN1,
+ CMD_CTRL,
+ CMD_BUSIF_MODE,
+ CMD_BUSIF_DALIGN,
+ CMD_ROUTE_SLCT,
+ CMDOUT_TIMSEL,
+ CTU_SWRSR,
+ CTU_CTUIR,
+ CTU_ADINR,
+ CTU_CPMDR,
+ CTU_SCMDR,
+ CTU_SV00R,
+ CTU_SV01R,
+ CTU_SV02R,
+ CTU_SV03R,
+ CTU_SV04R,
+ CTU_SV05R,
+ CTU_SV06R,
+ CTU_SV07R,
+ CTU_SV10R,
+ CTU_SV11R,
+ CTU_SV12R,
+ CTU_SV13R,
+ CTU_SV14R,
+ CTU_SV15R,
+ CTU_SV16R,
+ CTU_SV17R,
+ CTU_SV20R,
+ CTU_SV21R,
+ CTU_SV22R,
+ CTU_SV23R,
+ CTU_SV24R,
+ CTU_SV25R,
+ CTU_SV26R,
+ CTU_SV27R,
+ CTU_SV30R,
+ CTU_SV31R,
+ CTU_SV32R,
+ CTU_SV33R,
+ CTU_SV34R,
+ CTU_SV35R,
+ CTU_SV36R,
+ CTU_SV37R,
+ MIX_SWRSR,
+ MIX_MIXIR,
+ MIX_ADINR,
+ MIX_MIXMR,
+ MIX_MVPDR,
+ MIX_MDBAR,
+ MIX_MDBBR,
+ MIX_MDBCR,
+ MIX_MDBDR,
+ MIX_MDBER,
+ DVC_SWRSR,
+ DVC_DVUIR,
+ DVC_ADINR,
+ DVC_DVUCR,
+ DVC_ZCMCR,
+ DVC_VOL0R,
+ DVC_VOL1R,
+ DVC_VOL2R,
+ DVC_VOL3R,
+ DVC_VOL4R,
+ DVC_VOL5R,
+ DVC_VOL6R,
+ DVC_VOL7R,
+ DVC_DVUER,
+ DVC_VRCTR,
+ DVC_VRPDR,
+ DVC_VRDBR,
+
+ /* ADG */
+ BRRA,
+ BRRB,
+ BRGCKR,
+ DIV_EN,
+ AUDIO_CLK_SEL0,
+ AUDIO_CLK_SEL1,
+ AUDIO_CLK_SEL2,
+
+ /* SSIU */
+ SSI_MODE,
+ SSI_MODE0,
+ SSI_MODE1,
+ SSI_MODE2,
+ SSI_CONTROL,
+ SSI_CTRL,
+ SSI_BUSIF0_MODE,
+ SSI_BUSIF1_MODE,
+ SSI_BUSIF2_MODE,
+ SSI_BUSIF3_MODE,
+ SSI_BUSIF4_MODE,
+ SSI_BUSIF5_MODE,
+ SSI_BUSIF6_MODE,
+ SSI_BUSIF7_MODE,
+ SSI_BUSIF0_ADINR,
+ SSI_BUSIF1_ADINR,
+ SSI_BUSIF2_ADINR,
+ SSI_BUSIF3_ADINR,
+ SSI_BUSIF4_ADINR,
+ SSI_BUSIF5_ADINR,
+ SSI_BUSIF6_ADINR,
+ SSI_BUSIF7_ADINR,
+ SSI_BUSIF0_DALIGN,
+ SSI_BUSIF1_DALIGN,
+ SSI_BUSIF2_DALIGN,
+ SSI_BUSIF3_DALIGN,
+ SSI_BUSIF4_DALIGN,
+ SSI_BUSIF5_DALIGN,
+ SSI_BUSIF6_DALIGN,
+ SSI_BUSIF7_DALIGN,
+ SSI_INT_ENABLE,
+ SSI_SYS_STATUS0,
+ SSI_SYS_STATUS1,
+ SSI_SYS_STATUS2,
+ SSI_SYS_STATUS3,
+ SSI_SYS_STATUS4,
+ SSI_SYS_STATUS5,
+ SSI_SYS_STATUS6,
+ SSI_SYS_STATUS7,
+ SSI_SYS_INT_ENABLE0,
+ SSI_SYS_INT_ENABLE1,
+ SSI_SYS_INT_ENABLE2,
+ SSI_SYS_INT_ENABLE3,
+ SSI_SYS_INT_ENABLE4,
+ SSI_SYS_INT_ENABLE5,
+ SSI_SYS_INT_ENABLE6,
+ SSI_SYS_INT_ENABLE7,
+ HDMI0_SEL,
+ HDMI1_SEL,
+ SSI9_BUSIF0_MODE,
+ SSI9_BUSIF1_MODE,
+ SSI9_BUSIF2_MODE,
+ SSI9_BUSIF3_MODE,
+ SSI9_BUSIF4_MODE,
+ SSI9_BUSIF5_MODE,
+ SSI9_BUSIF6_MODE,
+ SSI9_BUSIF7_MODE,
+ SSI9_BUSIF0_ADINR,
+ SSI9_BUSIF1_ADINR,
+ SSI9_BUSIF2_ADINR,
+ SSI9_BUSIF3_ADINR,
+ SSI9_BUSIF4_ADINR,
+ SSI9_BUSIF5_ADINR,
+ SSI9_BUSIF6_ADINR,
+ SSI9_BUSIF7_ADINR,
+ SSI9_BUSIF0_DALIGN,
+ SSI9_BUSIF1_DALIGN,
+ SSI9_BUSIF2_DALIGN,
+ SSI9_BUSIF3_DALIGN,
+ SSI9_BUSIF4_DALIGN,
+ SSI9_BUSIF5_DALIGN,
+ SSI9_BUSIF6_DALIGN,
+ SSI9_BUSIF7_DALIGN,
+
+ /* SSI */
+ SSICR,
+ SSISR,
+ SSITDR,
+ SSIRDR,
+ SSIWSR,
+
+ REG_MAX,
+};
+#define SRCIN_TIMSEL(i) (SRCIN_TIMSEL0 + (i))
+#define SRCOUT_TIMSEL(i) (SRCOUT_TIMSEL0 + (i))
+#define CTU_SVxxR(i, j) (CTU_SV00R + (i * 8) + (j))
+#define DVC_VOLxR(i) (DVC_VOL0R + (i))
+#define AUDIO_CLK_SEL(i) (AUDIO_CLK_SEL0 + (i))
+#define SSI_BUSIF_MODE(i) (SSI_BUSIF0_MODE + (i))
+#define SSI_BUSIF_ADINR(i) (SSI_BUSIF0_ADINR + (i))
+#define SSI_BUSIF_DALIGN(i) (SSI_BUSIF0_DALIGN + (i))
+#define SSI9_BUSIF_MODE(i) (SSI9_BUSIF0_MODE + (i))
+#define SSI9_BUSIF_ADINR(i) (SSI9_BUSIF0_ADINR + (i))
+#define SSI9_BUSIF_DALIGN(i) (SSI9_BUSIF0_DALIGN + (i))
+#define SSI_SYS_STATUS(i) (SSI_SYS_STATUS0 + (i))
+#define SSI_SYS_INT_ENABLE(i) (SSI_SYS_INT_ENABLE0 + (i))
+
+
+struct rsnd_priv;
+struct rsnd_mod;
+struct rsnd_dai;
+struct rsnd_dai_stream;
+
+/*
+ * R-Car basic functions
+ */
+u32 rsnd_mod_read(struct rsnd_mod *mod, enum rsnd_reg reg);
+void rsnd_mod_write(struct rsnd_mod *mod, enum rsnd_reg reg, u32 data);
+void rsnd_mod_bset(struct rsnd_mod *mod, enum rsnd_reg reg, u32 mask, u32 data);
+u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io);
+u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io);
+u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod);
+
+/*
+ * R-Car DMA
+ */
+int rsnd_dma_attach(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod, struct rsnd_mod **dma_mod);
+int rsnd_dma_probe(struct rsnd_priv *priv);
+struct dma_chan *rsnd_dma_request_channel(struct device_node *of_node, char *name,
+ struct rsnd_mod *mod, char *x);
+
+/*
+ * R-Car sound mod
+ */
+enum rsnd_mod_type {
+ RSND_MOD_AUDMAPP,
+ RSND_MOD_AUDMA,
+ RSND_MOD_DVC,
+ RSND_MOD_MIX,
+ RSND_MOD_CTU,
+ RSND_MOD_CMD,
+ RSND_MOD_SRC,
+ RSND_MOD_SSIM3, /* SSI multi 3 */
+ RSND_MOD_SSIM2, /* SSI multi 2 */
+ RSND_MOD_SSIM1, /* SSI multi 1 */
+ RSND_MOD_SSIP, /* SSI parent */
+ RSND_MOD_SSI,
+ RSND_MOD_SSIU,
+ RSND_MOD_MAX,
+};
+
+struct rsnd_mod_ops {
+ char *name;
+ struct dma_chan* (*dma_req)(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod);
+ int (*probe)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv);
+ int (*remove)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv);
+ int (*init)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv);
+ int (*quit)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv);
+ int (*start)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv);
+ int (*stop)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv);
+ int (*irq)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv, int enable);
+ int (*pcm_new)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_soc_pcm_runtime *rtd);
+ int (*hw_params)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params);
+ int (*pointer)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ snd_pcm_uframes_t *pointer);
+ int (*fallback)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv);
+ int (*prepare)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv);
+ int (*cleanup)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv);
+ int (*hw_free)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_pcm_substream *substream);
+ u32 *(*get_status)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ enum rsnd_mod_type type);
+ int (*id)(struct rsnd_mod *mod);
+ int (*id_sub)(struct rsnd_mod *mod);
+ int (*id_cmd)(struct rsnd_mod *mod);
+
+#ifdef CONFIG_DEBUG_FS
+ void (*debug_info)(struct seq_file *m,
+ struct rsnd_dai_stream *io, struct rsnd_mod *mod);
+#endif
+};
+
+struct rsnd_dai_stream;
+struct rsnd_mod {
+ int id;
+ enum rsnd_mod_type type;
+ struct rsnd_mod_ops *ops;
+ struct rsnd_priv *priv;
+ struct clk *clk;
+ u32 status;
+};
+/*
+ * status
+ *
+ * 0xH000DCB0
+ *
+ * B 0: init 1: quit
+ * C 0: start 1: stop
+ * D 0: hw_params 1: hw_free
+ *
+ * H is always called (see __rsnd_mod_call)
+ */
+#define __rsnd_mod_shift_init 4
+#define __rsnd_mod_shift_quit 4
+#define __rsnd_mod_shift_start 8
+#define __rsnd_mod_shift_stop 8
+#define __rsnd_mod_shift_hw_params 12
+#define __rsnd_mod_shift_hw_free 12
+#define __rsnd_mod_shift_probe 28 /* always called */
+#define __rsnd_mod_shift_remove 28 /* always called */
+#define __rsnd_mod_shift_irq 28 /* always called */
+#define __rsnd_mod_shift_pcm_new 28 /* always called */
+#define __rsnd_mod_shift_fallback 28 /* always called */
+#define __rsnd_mod_shift_pointer 28 /* always called */
+#define __rsnd_mod_shift_prepare 28 /* always called */
+#define __rsnd_mod_shift_cleanup 28 /* always called */
+
+#define __rsnd_mod_add_probe 0
+#define __rsnd_mod_add_remove 0
+#define __rsnd_mod_add_prepare 0
+#define __rsnd_mod_add_cleanup 0
+#define __rsnd_mod_add_init 1 /* needs protect */
+#define __rsnd_mod_add_quit -1 /* needs protect */
+#define __rsnd_mod_add_start 1 /* needs protect */
+#define __rsnd_mod_add_stop -1 /* needs protect */
+#define __rsnd_mod_add_hw_params 1 /* needs protect */
+#define __rsnd_mod_add_hw_free -1 /* needs protect */
+#define __rsnd_mod_add_irq 0
+#define __rsnd_mod_add_pcm_new 0
+#define __rsnd_mod_add_fallback 0
+#define __rsnd_mod_add_pointer 0
+
+#define __rsnd_mod_call_probe 0
+#define __rsnd_mod_call_remove 0
+#define __rsnd_mod_call_prepare 0
+#define __rsnd_mod_call_cleanup 0
+#define __rsnd_mod_call_init 0 /* needs protect */
+#define __rsnd_mod_call_quit 1 /* needs protect */
+#define __rsnd_mod_call_start 0 /* needs protect */
+#define __rsnd_mod_call_stop 1 /* needs protect */
+#define __rsnd_mod_call_hw_params 0 /* needs protect */
+#define __rsnd_mod_call_hw_free 1 /* needs protect */
+#define __rsnd_mod_call_irq 0
+#define __rsnd_mod_call_pcm_new 0
+#define __rsnd_mod_call_fallback 0
+#define __rsnd_mod_call_pointer 0
+
+#define rsnd_mod_to_priv(mod) ((mod)->priv)
+#define rsnd_mod_power_on(mod) clk_enable((mod)->clk)
+#define rsnd_mod_power_off(mod) clk_disable((mod)->clk)
+#define rsnd_mod_get(ip) (&(ip)->mod)
+
+int rsnd_mod_init(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ struct rsnd_mod_ops *ops,
+ struct clk *clk,
+ enum rsnd_mod_type type,
+ int id);
+void rsnd_mod_quit(struct rsnd_mod *mod);
+struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod);
+void rsnd_mod_interrupt(struct rsnd_mod *mod,
+ void (*callback)(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io));
+u32 *rsnd_mod_get_status(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ enum rsnd_mod_type type);
+int rsnd_mod_id(struct rsnd_mod *mod);
+int rsnd_mod_id_raw(struct rsnd_mod *mod);
+int rsnd_mod_id_sub(struct rsnd_mod *mod);
+char *rsnd_mod_name(struct rsnd_mod *mod);
+struct rsnd_mod *rsnd_mod_next(int *iterator,
+ struct rsnd_dai_stream *io,
+ enum rsnd_mod_type *array,
+ int array_size);
+#define for_each_rsnd_mod(iterator, pos, io) \
+ for (iterator = 0; \
+ (pos = rsnd_mod_next(&iterator, io, NULL, 0)); iterator++)
+#define for_each_rsnd_mod_arrays(iterator, pos, io, array, size) \
+ for (iterator = 0; \
+ (pos = rsnd_mod_next(&iterator, io, array, size)); iterator++)
+#define for_each_rsnd_mod_array(iterator, pos, io, array) \
+ for_each_rsnd_mod_arrays(iterator, pos, io, array, ARRAY_SIZE(array))
+
+void rsnd_parse_connect_common(struct rsnd_dai *rdai, char *name,
+ struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id),
+ struct device_node *node,
+ struct device_node *playback,
+ struct device_node *capture);
+int rsnd_node_count(struct rsnd_priv *priv, struct device_node *node, char *name);
+int rsnd_node_fixed_index(struct device *dev, struct device_node *node, char *name, int idx);
+
+int rsnd_channel_normalization(int chan);
+#define rsnd_runtime_channel_original(io) \
+ rsnd_runtime_channel_original_with_params(io, NULL)
+int rsnd_runtime_channel_original_with_params(struct rsnd_dai_stream *io,
+ struct snd_pcm_hw_params *params);
+#define rsnd_runtime_channel_after_ctu(io) \
+ rsnd_runtime_channel_after_ctu_with_params(io, NULL)
+int rsnd_runtime_channel_after_ctu_with_params(struct rsnd_dai_stream *io,
+ struct snd_pcm_hw_params *params);
+#define rsnd_runtime_channel_for_ssi(io) \
+ rsnd_runtime_channel_for_ssi_with_params(io, NULL)
+int rsnd_runtime_channel_for_ssi_with_params(struct rsnd_dai_stream *io,
+ struct snd_pcm_hw_params *params);
+int rsnd_runtime_is_multi_ssi(struct rsnd_dai_stream *io);
+int rsnd_runtime_is_tdm(struct rsnd_dai_stream *io);
+int rsnd_runtime_is_tdm_split(struct rsnd_dai_stream *io);
+
+/*
+ * DT
+ */
+#define rsnd_parse_of_node(priv, node) \
+ of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, node)
+#define RSND_NODE_DAI "rcar_sound,dai"
+#define RSND_NODE_SSI "rcar_sound,ssi"
+#define RSND_NODE_SSIU "rcar_sound,ssiu"
+#define RSND_NODE_SRC "rcar_sound,src"
+#define RSND_NODE_CTU "rcar_sound,ctu"
+#define RSND_NODE_MIX "rcar_sound,mix"
+#define RSND_NODE_DVC "rcar_sound,dvc"
+
+/*
+ * R-Car sound DAI
+ */
+#define RSND_DAI_NAME_SIZE 16
+struct rsnd_dai_stream {
+ char name[RSND_DAI_NAME_SIZE];
+ struct snd_pcm_substream *substream;
+ struct rsnd_mod *mod[RSND_MOD_MAX];
+ struct rsnd_mod *dma;
+ struct rsnd_dai *rdai;
+ struct device *dmac_dev; /* for IPMMU */
+ u32 converted_rate; /* converted sampling rate */
+ int converted_chan; /* converted channels */
+ u32 parent_ssi_status;
+ u32 flags;
+};
+
+/* flags */
+#define RSND_STREAM_HDMI0 (1 << 0) /* for HDMI0 */
+#define RSND_STREAM_HDMI1 (1 << 1) /* for HDMI1 */
+#define RSND_STREAM_TDM_SPLIT (1 << 2) /* for TDM split mode */
+
+#define rsnd_io_to_mod(io, i) ((i) < RSND_MOD_MAX ? (io)->mod[(i)] : NULL)
+#define rsnd_io_to_mod_ssi(io) rsnd_io_to_mod((io), RSND_MOD_SSI)
+#define rsnd_io_to_mod_ssiu(io) rsnd_io_to_mod((io), RSND_MOD_SSIU)
+#define rsnd_io_to_mod_ssip(io) rsnd_io_to_mod((io), RSND_MOD_SSIP)
+#define rsnd_io_to_mod_src(io) rsnd_io_to_mod((io), RSND_MOD_SRC)
+#define rsnd_io_to_mod_ctu(io) rsnd_io_to_mod((io), RSND_MOD_CTU)
+#define rsnd_io_to_mod_mix(io) rsnd_io_to_mod((io), RSND_MOD_MIX)
+#define rsnd_io_to_mod_dvc(io) rsnd_io_to_mod((io), RSND_MOD_DVC)
+#define rsnd_io_to_mod_cmd(io) rsnd_io_to_mod((io), RSND_MOD_CMD)
+#define rsnd_io_to_rdai(io) ((io)->rdai)
+#define rsnd_io_to_priv(io) (rsnd_rdai_to_priv(rsnd_io_to_rdai(io)))
+#define rsnd_io_is_play(io) (&rsnd_io_to_rdai(io)->playback == io)
+#define rsnd_io_to_runtime(io) ((io)->substream ? \
+ (io)->substream->runtime : NULL)
+#define rsnd_io_converted_rate(io) ((io)->converted_rate)
+#define rsnd_io_converted_chan(io) ((io)->converted_chan)
+int rsnd_io_is_working(struct rsnd_dai_stream *io);
+
+struct rsnd_dai {
+ char name[RSND_DAI_NAME_SIZE];
+ struct rsnd_dai_stream playback;
+ struct rsnd_dai_stream capture;
+ struct rsnd_priv *priv;
+ struct snd_pcm_hw_constraint_list constraint;
+
+ int max_channels; /* 2ch - 16ch */
+ int ssi_lane; /* 1lane - 4lane */
+ int chan_width; /* 16/24/32 bit width */
+
+ unsigned int clk_master:1;
+ unsigned int bit_clk_inv:1;
+ unsigned int frm_clk_inv:1;
+ unsigned int sys_delay:1;
+ unsigned int data_alignment:1;
+};
+
+#define rsnd_rdai_nr(priv) ((priv)->rdai_nr)
+#define rsnd_rdai_is_clk_master(rdai) ((rdai)->clk_master)
+#define rsnd_rdai_to_priv(rdai) ((rdai)->priv)
+#define for_each_rsnd_dai(rdai, priv, i) \
+ for (i = 0; \
+ (i < rsnd_rdai_nr(priv)) && \
+ ((rdai) = rsnd_rdai_get(priv, i)); \
+ i++)
+
+struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id);
+
+#define rsnd_rdai_channels_set(rdai, max_channels) \
+ rsnd_rdai_channels_ctrl(rdai, max_channels)
+#define rsnd_rdai_channels_get(rdai) \
+ rsnd_rdai_channels_ctrl(rdai, 0)
+int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai,
+ int max_channels);
+
+#define rsnd_rdai_ssi_lane_set(rdai, ssi_lane) \
+ rsnd_rdai_ssi_lane_ctrl(rdai, ssi_lane)
+#define rsnd_rdai_ssi_lane_get(rdai) \
+ rsnd_rdai_ssi_lane_ctrl(rdai, 0)
+int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai,
+ int ssi_lane);
+
+#define rsnd_rdai_width_set(rdai, width) \
+ rsnd_rdai_width_ctrl(rdai, width)
+#define rsnd_rdai_width_get(rdai) \
+ rsnd_rdai_width_ctrl(rdai, 0)
+int rsnd_rdai_width_ctrl(struct rsnd_dai *rdai, int width);
+void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io);
+int rsnd_dai_connect(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ enum rsnd_mod_type type);
+
+/*
+ * R-Car Gen1/Gen2
+ */
+int rsnd_gen_probe(struct rsnd_priv *priv);
+void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
+ struct rsnd_mod *mod,
+ enum rsnd_reg reg);
+phys_addr_t rsnd_gen_get_phy_addr(struct rsnd_priv *priv, int reg_id);
+#ifdef CONFIG_DEBUG_FS
+void __iomem *rsnd_gen_get_base_addr(struct rsnd_priv *priv, int reg_id);
+#endif
+
+/*
+ * R-Car ADG
+ */
+int rsnd_adg_clk_query(struct rsnd_priv *priv, unsigned int rate);
+int rsnd_adg_ssi_clk_stop(struct rsnd_mod *ssi_mod);
+int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *ssi_mod, unsigned int rate);
+int rsnd_adg_probe(struct rsnd_priv *priv);
+void rsnd_adg_remove(struct rsnd_priv *priv);
+int rsnd_adg_set_src_timesel_gen2(struct rsnd_mod *src_mod,
+ struct rsnd_dai_stream *io,
+ unsigned int in_rate,
+ unsigned int out_rate);
+int rsnd_adg_set_cmd_timsel_gen2(struct rsnd_mod *cmd_mod,
+ struct rsnd_dai_stream *io);
+#define rsnd_adg_clk_enable(priv) rsnd_adg_clk_control(priv, 1)
+#define rsnd_adg_clk_disable(priv) rsnd_adg_clk_control(priv, 0)
+void rsnd_adg_clk_control(struct rsnd_priv *priv, int enable);
+void rsnd_adg_clk_dbg_info(struct rsnd_priv *priv, struct seq_file *m);
+
+/*
+ * R-Car sound priv
+ */
+struct rsnd_priv {
+
+ struct platform_device *pdev;
+ spinlock_t lock;
+ unsigned long flags;
+#define RSND_GEN_MASK (0xF << 0)
+#define RSND_GEN1 (1 << 0)
+#define RSND_GEN2 (2 << 0)
+#define RSND_GEN3 (3 << 0)
+#define RSND_SOC_MASK (0xFF << 4)
+#define RSND_SOC_E (1 << 4) /* E1/E2/E3 */
+
+ /*
+ * below value will be filled on rsnd_gen_probe()
+ */
+ void *gen;
+
+ /*
+ * below value will be filled on rsnd_adg_probe()
+ */
+ void *adg;
+
+ /*
+ * below value will be filled on rsnd_dma_probe()
+ */
+ void *dma;
+
+ /*
+ * below value will be filled on rsnd_ssi_probe()
+ */
+ void *ssi;
+ int ssi_nr;
+
+ /*
+ * below value will be filled on rsnd_ssiu_probe()
+ */
+ void *ssiu;
+ int ssiu_nr;
+
+ /*
+ * below value will be filled on rsnd_src_probe()
+ */
+ void *src;
+ int src_nr;
+
+ /*
+ * below value will be filled on rsnd_ctu_probe()
+ */
+ void *ctu;
+ int ctu_nr;
+
+ /*
+ * below value will be filled on rsnd_mix_probe()
+ */
+ void *mix;
+ int mix_nr;
+
+ /*
+ * below value will be filled on rsnd_dvc_probe()
+ */
+ void *dvc;
+ int dvc_nr;
+
+ /*
+ * below value will be filled on rsnd_cmd_probe()
+ */
+ void *cmd;
+ int cmd_nr;
+
+ /*
+ * below value will be filled on rsnd_dai_probe()
+ */
+ struct snd_soc_dai_driver *daidrv;
+ struct rsnd_dai *rdai;
+ int rdai_nr;
+};
+
+#define rsnd_priv_to_pdev(priv) ((priv)->pdev)
+#define rsnd_priv_to_dev(priv) (&(rsnd_priv_to_pdev(priv)->dev))
+
+#define rsnd_is_gen1(priv) (((priv)->flags & RSND_GEN_MASK) == RSND_GEN1)
+#define rsnd_is_gen2(priv) (((priv)->flags & RSND_GEN_MASK) == RSND_GEN2)
+#define rsnd_is_gen3(priv) (((priv)->flags & RSND_GEN_MASK) == RSND_GEN3)
+#define rsnd_is_e3(priv) (((priv)->flags & \
+ (RSND_GEN_MASK | RSND_SOC_MASK)) == \
+ (RSND_GEN3 | RSND_SOC_E))
+
+#define rsnd_flags_has(p, f) ((p)->flags & (f))
+#define rsnd_flags_set(p, f) ((p)->flags |= (f))
+#define rsnd_flags_del(p, f) ((p)->flags &= ~(f))
+
+/*
+ * rsnd_kctrl
+ */
+struct rsnd_kctrl_cfg {
+ unsigned int max;
+ unsigned int size;
+ u32 *val;
+ const char * const *texts;
+ int (*accept)(struct rsnd_dai_stream *io);
+ void (*update)(struct rsnd_dai_stream *io, struct rsnd_mod *mod);
+ struct rsnd_dai_stream *io;
+ struct snd_card *card;
+ struct snd_kcontrol *kctrl;
+ struct rsnd_mod *mod;
+};
+
+#define RSND_MAX_CHANNELS 8
+struct rsnd_kctrl_cfg_m {
+ struct rsnd_kctrl_cfg cfg;
+ u32 val[RSND_MAX_CHANNELS];
+};
+
+struct rsnd_kctrl_cfg_s {
+ struct rsnd_kctrl_cfg cfg;
+ u32 val;
+};
+#define rsnd_kctrl_size(x) ((x).cfg.size)
+#define rsnd_kctrl_max(x) ((x).cfg.max)
+#define rsnd_kctrl_valm(x, i) ((x).val[i]) /* = (x).cfg.val[i] */
+#define rsnd_kctrl_vals(x) ((x).val) /* = (x).cfg.val[0] */
+
+int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io);
+int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io);
+struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg);
+struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg);
+int rsnd_kctrl_new(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_soc_pcm_runtime *rtd,
+ const unsigned char *name,
+ int (*accept)(struct rsnd_dai_stream *io),
+ void (*update)(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod),
+ struct rsnd_kctrl_cfg *cfg,
+ const char * const *texts,
+ int size,
+ u32 max);
+
+#define rsnd_kctrl_new_m(mod, io, rtd, name, accept, update, cfg, size, max) \
+ rsnd_kctrl_new(mod, io, rtd, name, accept, update, rsnd_kctrl_init_m(cfg), \
+ NULL, size, max)
+
+#define rsnd_kctrl_new_s(mod, io, rtd, name, accept, update, cfg, max) \
+ rsnd_kctrl_new(mod, io, rtd, name, accept, update, rsnd_kctrl_init_s(cfg), \
+ NULL, 1, max)
+
+#define rsnd_kctrl_new_e(mod, io, rtd, name, accept, update, cfg, texts, size) \
+ rsnd_kctrl_new(mod, io, rtd, name, accept, update, rsnd_kctrl_init_s(cfg), \
+ texts, 1, size)
+
+extern const char * const volume_ramp_rate[];
+#define VOLUME_RAMP_MAX_DVC (0x17 + 1)
+#define VOLUME_RAMP_MAX_MIX (0x0a + 1)
+
+/*
+ * R-Car SSI
+ */
+int rsnd_ssi_probe(struct rsnd_priv *priv);
+void rsnd_ssi_remove(struct rsnd_priv *priv);
+struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
+int rsnd_ssi_use_busif(struct rsnd_dai_stream *io);
+u32 rsnd_ssi_multi_secondaries_runtime(struct rsnd_dai_stream *io);
+int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod);
+
+#define rsnd_ssi_is_pin_sharing(io) \
+ __rsnd_ssi_is_pin_sharing(rsnd_io_to_mod_ssi(io))
+int __rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod);
+
+#define rsnd_ssi_of_node(priv) rsnd_parse_of_node(priv, RSND_NODE_SSI)
+void rsnd_parse_connect_ssi(struct rsnd_dai *rdai,
+ struct device_node *playback,
+ struct device_node *capture);
+unsigned int rsnd_ssi_clk_query(struct rsnd_dai *rdai,
+ int param1, int param2, int *idx);
+
+/*
+ * R-Car SSIU
+ */
+int rsnd_ssiu_attach(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod);
+int rsnd_ssiu_probe(struct rsnd_priv *priv);
+void rsnd_ssiu_remove(struct rsnd_priv *priv);
+void rsnd_parse_connect_ssiu(struct rsnd_dai *rdai,
+ struct device_node *playback,
+ struct device_node *capture);
+#define rsnd_ssiu_of_node(priv) rsnd_parse_of_node(priv, RSND_NODE_SSIU)
+bool rsnd_ssiu_busif_err_status_clear(struct rsnd_mod *mod);
+
+/*
+ * R-Car SRC
+ */
+int rsnd_src_probe(struct rsnd_priv *priv);
+void rsnd_src_remove(struct rsnd_priv *priv);
+struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id);
+
+#define rsnd_src_get_in_rate(priv, io) rsnd_src_get_rate(priv, io, 1)
+#define rsnd_src_get_out_rate(priv, io) rsnd_src_get_rate(priv, io, 0)
+unsigned int rsnd_src_get_rate(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io,
+ int is_in);
+
+#define rsnd_src_of_node(priv) rsnd_parse_of_node(priv, RSND_NODE_SRC)
+#define rsnd_parse_connect_src(rdai, playback, capture) \
+ rsnd_parse_connect_common(rdai, "src", rsnd_src_mod_get, \
+ rsnd_src_of_node(rsnd_rdai_to_priv(rdai)), \
+ playback, capture)
+
+/*
+ * R-Car CTU
+ */
+int rsnd_ctu_probe(struct rsnd_priv *priv);
+void rsnd_ctu_remove(struct rsnd_priv *priv);
+struct rsnd_mod *rsnd_ctu_mod_get(struct rsnd_priv *priv, int id);
+#define rsnd_ctu_of_node(priv) rsnd_parse_of_node(priv, RSND_NODE_CTU)
+#define rsnd_parse_connect_ctu(rdai, playback, capture) \
+ rsnd_parse_connect_common(rdai, "ctu", rsnd_ctu_mod_get, \
+ rsnd_ctu_of_node(rsnd_rdai_to_priv(rdai)), \
+ playback, capture)
+
+/*
+ * R-Car MIX
+ */
+int rsnd_mix_probe(struct rsnd_priv *priv);
+void rsnd_mix_remove(struct rsnd_priv *priv);
+struct rsnd_mod *rsnd_mix_mod_get(struct rsnd_priv *priv, int id);
+#define rsnd_mix_of_node(priv) rsnd_parse_of_node(priv, RSND_NODE_MIX)
+#define rsnd_parse_connect_mix(rdai, playback, capture) \
+ rsnd_parse_connect_common(rdai, "mix", rsnd_mix_mod_get, \
+ rsnd_mix_of_node(rsnd_rdai_to_priv(rdai)), \
+ playback, capture)
+
+/*
+ * R-Car DVC
+ */
+int rsnd_dvc_probe(struct rsnd_priv *priv);
+void rsnd_dvc_remove(struct rsnd_priv *priv);
+struct rsnd_mod *rsnd_dvc_mod_get(struct rsnd_priv *priv, int id);
+#define rsnd_dvc_of_node(priv) rsnd_parse_of_node(priv, RSND_NODE_DVC)
+#define rsnd_parse_connect_dvc(rdai, playback, capture) \
+ rsnd_parse_connect_common(rdai, "dvc", rsnd_dvc_mod_get, \
+ rsnd_dvc_of_node(rsnd_rdai_to_priv(rdai)), \
+ playback, capture)
+
+/*
+ * R-Car CMD
+ */
+int rsnd_cmd_probe(struct rsnd_priv *priv);
+void rsnd_cmd_remove(struct rsnd_priv *priv);
+int rsnd_cmd_attach(struct rsnd_dai_stream *io, int id);
+
+void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type);
+#ifdef DEBUG
+#define rsnd_mod_confirm_ssi(mssi) rsnd_mod_make_sure(mssi, RSND_MOD_SSI)
+#define rsnd_mod_confirm_src(msrc) rsnd_mod_make_sure(msrc, RSND_MOD_SRC)
+#define rsnd_mod_confirm_dvc(mdvc) rsnd_mod_make_sure(mdvc, RSND_MOD_DVC)
+#else
+#define rsnd_mod_confirm_ssi(mssi)
+#define rsnd_mod_confirm_src(msrc)
+#define rsnd_mod_confirm_dvc(mdvc)
+#endif
+
+/*
+ * If you don't need interrupt status debug message,
+ * define RSND_DEBUG_NO_IRQ_STATUS as 1 on top of src.c/ssi.c
+ *
+ * #define RSND_DEBUG_NO_IRQ_STATUS 1
+ */
+#define rsnd_print_irq_status(dev, param...) do { \
+ if (!IS_BUILTIN(RSND_DEBUG_NO_IRQ_STATUS)) \
+ dev_info(dev, param); \
+} while (0)
+
+/*
+ * If you don't need rsnd_dai_call debug message,
+ * define RSND_DEBUG_NO_DAI_CALL as 1 on top of core.c
+ *
+ * #define RSND_DEBUG_NO_DAI_CALL 1
+ */
+#define rsnd_dbg_dai_call(dev, param...) \
+ if (!IS_BUILTIN(RSND_DEBUG_NO_DAI_CALL)) \
+ dev_dbg(dev, param)
+
+#ifdef CONFIG_DEBUG_FS
+int rsnd_debugfs_probe(struct snd_soc_component *component);
+void rsnd_debugfs_reg_show(struct seq_file *m, phys_addr_t _addr,
+ void __iomem *base, int offset, int size);
+void rsnd_debugfs_mod_reg_show(struct seq_file *m, struct rsnd_mod *mod,
+ int reg_id, int offset, int size);
+
+#else
+#define rsnd_debugfs_probe NULL
+#endif
+
+#endif /* RSND_H */
diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c
new file mode 100644
index 000000000..f832165e4
--- /dev/null
+++ b/sound/soc/sh/rcar/src.c
@@ -0,0 +1,735 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Renesas R-Car SRC support
+//
+// Copyright (C) 2013 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+/*
+ * You can use Synchronous Sampling Rate Convert (if no DVC)
+ *
+ * amixer set "SRC Out Rate" on
+ * aplay xxx.wav &
+ * amixer set "SRC Out Rate" 96000 // convert rate to 96000Hz
+ * amixer set "SRC Out Rate" 22050 // convert rate to 22050Hz
+ */
+
+/*
+ * you can enable below define if you don't need
+ * SSI interrupt status debug message when debugging
+ * see rsnd_print_irq_status()
+ *
+ * #define RSND_DEBUG_NO_IRQ_STATUS 1
+ */
+
+#include "rsnd.h"
+
+#define SRC_NAME "src"
+
+/* SCU_SYSTEM_STATUS0/1 */
+#define OUF_SRC(id) ((1 << (id + 16)) | (1 << id))
+
+struct rsnd_src {
+ struct rsnd_mod mod;
+ struct rsnd_mod *dma;
+ struct rsnd_kctrl_cfg_s sen; /* sync convert enable */
+ struct rsnd_kctrl_cfg_s sync; /* sync convert */
+ int irq;
+};
+
+#define RSND_SRC_NAME_SIZE 16
+
+#define rsnd_src_get(priv, id) ((struct rsnd_src *)(priv->src) + id)
+#define rsnd_src_nr(priv) ((priv)->src_nr)
+#define rsnd_src_sync_is_enabled(mod) (rsnd_mod_to_src(mod)->sen.val)
+
+#define rsnd_mod_to_src(_mod) \
+ container_of((_mod), struct rsnd_src, mod)
+
+#define for_each_rsnd_src(pos, priv, i) \
+ for ((i) = 0; \
+ ((i) < rsnd_src_nr(priv)) && \
+ ((pos) = (struct rsnd_src *)(priv)->src + i); \
+ i++)
+
+
+/*
+ * image of SRC (Sampling Rate Converter)
+ *
+ * 96kHz <-> +-----+ 48kHz +-----+ 48kHz +-------+
+ * 48kHz <-> | SRC | <------> | SSI | <-----> | codec |
+ * 44.1kHz <-> +-----+ +-----+ +-------+
+ * ...
+ *
+ */
+
+static void rsnd_src_activation(struct rsnd_mod *mod)
+{
+ rsnd_mod_write(mod, SRC_SWRSR, 0);
+ rsnd_mod_write(mod, SRC_SWRSR, 1);
+}
+
+static void rsnd_src_halt(struct rsnd_mod *mod)
+{
+ rsnd_mod_write(mod, SRC_SRCIR, 1);
+ rsnd_mod_write(mod, SRC_SWRSR, 0);
+}
+
+static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ int is_play = rsnd_io_is_play(io);
+
+ return rsnd_dma_request_channel(rsnd_src_of_node(priv),
+ SRC_NAME, mod,
+ is_play ? "rx" : "tx");
+}
+
+static u32 rsnd_src_convert_rate(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ u32 convert_rate;
+
+ if (!runtime)
+ return 0;
+
+ if (!rsnd_src_sync_is_enabled(mod))
+ return rsnd_io_converted_rate(io);
+
+ convert_rate = src->sync.val;
+
+ if (!convert_rate)
+ convert_rate = rsnd_io_converted_rate(io);
+
+ if (!convert_rate)
+ convert_rate = runtime->rate;
+
+ return convert_rate;
+}
+
+unsigned int rsnd_src_get_rate(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io,
+ int is_in)
+{
+ struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ unsigned int rate = 0;
+ int is_play = rsnd_io_is_play(io);
+
+ /*
+ * Playback
+ * runtime_rate -> [SRC] -> convert_rate
+ *
+ * Capture
+ * convert_rate -> [SRC] -> runtime_rate
+ */
+
+ if (is_play == is_in)
+ return runtime->rate;
+
+ /*
+ * return convert rate if SRC is used,
+ * otherwise, return runtime->rate as usual
+ */
+ if (src_mod)
+ rate = rsnd_src_convert_rate(io, src_mod);
+
+ if (!rate)
+ rate = runtime->rate;
+
+ return rate;
+}
+
+static const u32 bsdsr_table_pattern1[] = {
+ 0x01800000, /* 6 - 1/6 */
+ 0x01000000, /* 6 - 1/4 */
+ 0x00c00000, /* 6 - 1/3 */
+ 0x00800000, /* 6 - 1/2 */
+ 0x00600000, /* 6 - 2/3 */
+ 0x00400000, /* 6 - 1 */
+};
+
+static const u32 bsdsr_table_pattern2[] = {
+ 0x02400000, /* 6 - 1/6 */
+ 0x01800000, /* 6 - 1/4 */
+ 0x01200000, /* 6 - 1/3 */
+ 0x00c00000, /* 6 - 1/2 */
+ 0x00900000, /* 6 - 2/3 */
+ 0x00600000, /* 6 - 1 */
+};
+
+static const u32 bsisr_table[] = {
+ 0x00100060, /* 6 - 1/6 */
+ 0x00100040, /* 6 - 1/4 */
+ 0x00100030, /* 6 - 1/3 */
+ 0x00100020, /* 6 - 1/2 */
+ 0x00100020, /* 6 - 2/3 */
+ 0x00100020, /* 6 - 1 */
+};
+
+static const u32 chan288888[] = {
+ 0x00000006, /* 1 to 2 */
+ 0x000001fe, /* 1 to 8 */
+ 0x000001fe, /* 1 to 8 */
+ 0x000001fe, /* 1 to 8 */
+ 0x000001fe, /* 1 to 8 */
+ 0x000001fe, /* 1 to 8 */
+};
+
+static const u32 chan244888[] = {
+ 0x00000006, /* 1 to 2 */
+ 0x0000001e, /* 1 to 4 */
+ 0x0000001e, /* 1 to 4 */
+ 0x000001fe, /* 1 to 8 */
+ 0x000001fe, /* 1 to 8 */
+ 0x000001fe, /* 1 to 8 */
+};
+
+static const u32 chan222222[] = {
+ 0x00000006, /* 1 to 2 */
+ 0x00000006, /* 1 to 2 */
+ 0x00000006, /* 1 to 2 */
+ 0x00000006, /* 1 to 2 */
+ 0x00000006, /* 1 to 2 */
+ 0x00000006, /* 1 to 2 */
+};
+
+static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ int is_play = rsnd_io_is_play(io);
+ int use_src = 0;
+ u32 fin, fout;
+ u32 ifscr, fsrate, adinr;
+ u32 cr, route;
+ u32 i_busif, o_busif, tmp;
+ const u32 *bsdsr_table;
+ const u32 *chptn;
+ uint ratio;
+ int chan;
+ int idx;
+
+ if (!runtime)
+ return;
+
+ fin = rsnd_src_get_in_rate(priv, io);
+ fout = rsnd_src_get_out_rate(priv, io);
+
+ chan = rsnd_runtime_channel_original(io);
+
+ /* 6 - 1/6 are very enough ratio for SRC_BSDSR */
+ if (fin == fout)
+ ratio = 0;
+ else if (fin > fout)
+ ratio = 100 * fin / fout;
+ else
+ ratio = 100 * fout / fin;
+
+ if (ratio > 600) {
+ dev_err(dev, "FSO/FSI ratio error\n");
+ return;
+ }
+
+ use_src = (fin != fout) | rsnd_src_sync_is_enabled(mod);
+
+ /*
+ * SRC_ADINR
+ */
+ adinr = rsnd_get_adinr_bit(mod, io) | chan;
+
+ /*
+ * SRC_IFSCR / SRC_IFSVR
+ */
+ ifscr = 0;
+ fsrate = 0;
+ if (use_src) {
+ u64 n;
+
+ ifscr = 1;
+ n = (u64)0x0400000 * fin;
+ do_div(n, fout);
+ fsrate = n;
+ }
+
+ /*
+ * SRC_SRCCR / SRC_ROUTE_MODE0
+ */
+ cr = 0x00011110;
+ route = 0x0;
+ if (use_src) {
+ route = 0x1;
+
+ if (rsnd_src_sync_is_enabled(mod)) {
+ cr |= 0x1;
+ route |= rsnd_io_is_play(io) ?
+ (0x1 << 24) : (0x1 << 25);
+ }
+ }
+
+ /*
+ * SRC_BSDSR / SRC_BSISR
+ *
+ * see
+ * Combination of Register Setting Related to
+ * FSO/FSI Ratio and Channel, Latency
+ */
+ switch (rsnd_mod_id(mod)) {
+ case 0:
+ chptn = chan288888;
+ bsdsr_table = bsdsr_table_pattern1;
+ break;
+ case 1:
+ case 3:
+ case 4:
+ chptn = chan244888;
+ bsdsr_table = bsdsr_table_pattern1;
+ break;
+ case 2:
+ case 9:
+ chptn = chan222222;
+ bsdsr_table = bsdsr_table_pattern1;
+ break;
+ case 5:
+ case 6:
+ case 7:
+ case 8:
+ chptn = chan222222;
+ bsdsr_table = bsdsr_table_pattern2;
+ break;
+ default:
+ goto convert_rate_err;
+ }
+
+ /*
+ * E3 need to overwrite
+ */
+ if (rsnd_is_e3(priv))
+ switch (rsnd_mod_id(mod)) {
+ case 0:
+ case 4:
+ chptn = chan222222;
+ }
+
+ for (idx = 0; idx < ARRAY_SIZE(chan222222); idx++)
+ if (chptn[idx] & (1 << chan))
+ break;
+
+ if (chan > 8 ||
+ idx >= ARRAY_SIZE(chan222222))
+ goto convert_rate_err;
+
+ /* BUSIF_MODE */
+ tmp = rsnd_get_busif_shift(io, mod);
+ i_busif = ( is_play ? tmp : 0) | 1;
+ o_busif = (!is_play ? tmp : 0) | 1;
+
+ rsnd_mod_write(mod, SRC_ROUTE_MODE0, route);
+
+ rsnd_mod_write(mod, SRC_SRCIR, 1); /* initialize */
+ rsnd_mod_write(mod, SRC_ADINR, adinr);
+ rsnd_mod_write(mod, SRC_IFSCR, ifscr);
+ rsnd_mod_write(mod, SRC_IFSVR, fsrate);
+ rsnd_mod_write(mod, SRC_SRCCR, cr);
+ rsnd_mod_write(mod, SRC_BSDSR, bsdsr_table[idx]);
+ rsnd_mod_write(mod, SRC_BSISR, bsisr_table[idx]);
+ rsnd_mod_write(mod, SRC_SRCIR, 0); /* cancel initialize */
+
+ rsnd_mod_write(mod, SRC_I_BUSIF_MODE, i_busif);
+ rsnd_mod_write(mod, SRC_O_BUSIF_MODE, o_busif);
+
+ rsnd_mod_write(mod, SRC_BUSIF_DALIGN, rsnd_get_dalign(mod, io));
+
+ rsnd_adg_set_src_timesel_gen2(mod, io, fin, fout);
+
+ return;
+
+convert_rate_err:
+ dev_err(dev, "unknown BSDSR/BSDIR settings\n");
+}
+
+static int rsnd_src_irq(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv,
+ int enable)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ u32 sys_int_val, int_val, sys_int_mask;
+ int irq = src->irq;
+ int id = rsnd_mod_id(mod);
+
+ sys_int_val =
+ sys_int_mask = OUF_SRC(id);
+ int_val = 0x3300;
+
+ /*
+ * IRQ is not supported on non-DT
+ * see
+ * rsnd_src_probe_()
+ */
+ if ((irq <= 0) || !enable) {
+ sys_int_val = 0;
+ int_val = 0;
+ }
+
+ /*
+ * WORKAROUND
+ *
+ * ignore over flow error when rsnd_src_sync_is_enabled()
+ */
+ if (rsnd_src_sync_is_enabled(mod))
+ sys_int_val = sys_int_val & 0xffff;
+
+ rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val);
+ rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val);
+ rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val);
+
+ return 0;
+}
+
+static void rsnd_src_status_clear(struct rsnd_mod *mod)
+{
+ u32 val = OUF_SRC(rsnd_mod_id(mod));
+
+ rsnd_mod_write(mod, SCU_SYS_STATUS0, val);
+ rsnd_mod_write(mod, SCU_SYS_STATUS1, val);
+}
+
+static bool rsnd_src_error_occurred(struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ u32 val0, val1;
+ u32 status0, status1;
+ bool ret = false;
+
+ val0 = val1 = OUF_SRC(rsnd_mod_id(mod));
+
+ /*
+ * WORKAROUND
+ *
+ * ignore over flow error when rsnd_src_sync_is_enabled()
+ */
+ if (rsnd_src_sync_is_enabled(mod))
+ val0 = val0 & 0xffff;
+
+ status0 = rsnd_mod_read(mod, SCU_SYS_STATUS0);
+ status1 = rsnd_mod_read(mod, SCU_SYS_STATUS1);
+ if ((status0 & val0) || (status1 & val1)) {
+ rsnd_print_irq_status(dev, "%s err status : 0x%08x, 0x%08x\n",
+ rsnd_mod_name(mod), status0, status1);
+
+ ret = true;
+ }
+
+ return ret;
+}
+
+static int rsnd_src_start(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ u32 val;
+
+ /*
+ * WORKAROUND
+ *
+ * Enable SRC output if you want to use sync convert together with DVC
+ */
+ val = (rsnd_io_to_mod_dvc(io) && !rsnd_src_sync_is_enabled(mod)) ?
+ 0x01 : 0x11;
+
+ rsnd_mod_write(mod, SRC_CTRL, val);
+
+ return 0;
+}
+
+static int rsnd_src_stop(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ rsnd_mod_write(mod, SRC_CTRL, 0);
+
+ return 0;
+}
+
+static int rsnd_src_init(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ int ret;
+
+ /* reset sync convert_rate */
+ src->sync.val = 0;
+
+ ret = rsnd_mod_power_on(mod);
+ if (ret < 0)
+ return ret;
+
+ rsnd_src_activation(mod);
+
+ rsnd_src_set_convert_rate(io, mod);
+
+ rsnd_src_status_clear(mod);
+
+ return 0;
+}
+
+static int rsnd_src_quit(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+
+ rsnd_src_halt(mod);
+
+ rsnd_mod_power_off(mod);
+
+ /* reset sync convert_rate */
+ src->sync.val = 0;
+
+ return 0;
+}
+
+static void __rsnd_src_interrupt(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ bool stop = false;
+
+ spin_lock(&priv->lock);
+
+ /* ignore all cases if not working */
+ if (!rsnd_io_is_working(io))
+ goto rsnd_src_interrupt_out;
+
+ if (rsnd_src_error_occurred(mod))
+ stop = true;
+
+ rsnd_src_status_clear(mod);
+rsnd_src_interrupt_out:
+
+ spin_unlock(&priv->lock);
+
+ if (stop)
+ snd_pcm_stop_xrun(io->substream);
+}
+
+static irqreturn_t rsnd_src_interrupt(int irq, void *data)
+{
+ struct rsnd_mod *mod = data;
+
+ rsnd_mod_interrupt(mod, __rsnd_src_interrupt);
+
+ return IRQ_HANDLED;
+}
+
+static int rsnd_src_probe_(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int irq = src->irq;
+ int ret;
+
+ if (irq > 0) {
+ /*
+ * IRQ is not supported on non-DT
+ * see
+ * rsnd_src_irq()
+ */
+ ret = devm_request_irq(dev, irq,
+ rsnd_src_interrupt,
+ IRQF_SHARED,
+ dev_name(dev), mod);
+ if (ret)
+ return ret;
+ }
+
+ ret = rsnd_dma_attach(io, mod, &src->dma);
+
+ return ret;
+}
+
+static int rsnd_src_pcm_new(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct rsnd_src *src = rsnd_mod_to_src(mod);
+ int ret;
+
+ /*
+ * enable SRC sync convert if possible
+ */
+
+ /*
+ * It can't use SRC Synchronous convert
+ * when Capture if it uses CMD
+ */
+ if (rsnd_io_to_mod_cmd(io) && !rsnd_io_is_play(io))
+ return 0;
+
+ /*
+ * enable sync convert
+ */
+ ret = rsnd_kctrl_new_s(mod, io, rtd,
+ rsnd_io_is_play(io) ?
+ "SRC Out Rate Switch" :
+ "SRC In Rate Switch",
+ rsnd_kctrl_accept_anytime,
+ rsnd_src_set_convert_rate,
+ &src->sen, 1);
+ if (ret < 0)
+ return ret;
+
+ ret = rsnd_kctrl_new_s(mod, io, rtd,
+ rsnd_io_is_play(io) ?
+ "SRC Out Rate" :
+ "SRC In Rate",
+ rsnd_kctrl_accept_runtime,
+ rsnd_src_set_convert_rate,
+ &src->sync, 192000);
+
+ return ret;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void rsnd_src_debug_info(struct seq_file *m,
+ struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU,
+ rsnd_mod_id(mod) * 0x20, 0x20);
+ seq_puts(m, "\n");
+ rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU,
+ 0x1c0, 0x20);
+ seq_puts(m, "\n");
+ rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU,
+ 0x200 + rsnd_mod_id(mod) * 0x40, 0x40);
+}
+#define DEBUG_INFO .debug_info = rsnd_src_debug_info
+#else
+#define DEBUG_INFO
+#endif
+
+static struct rsnd_mod_ops rsnd_src_ops = {
+ .name = SRC_NAME,
+ .dma_req = rsnd_src_dma_req,
+ .probe = rsnd_src_probe_,
+ .init = rsnd_src_init,
+ .quit = rsnd_src_quit,
+ .start = rsnd_src_start,
+ .stop = rsnd_src_stop,
+ .irq = rsnd_src_irq,
+ .pcm_new = rsnd_src_pcm_new,
+ .get_status = rsnd_mod_get_status,
+ DEBUG_INFO
+};
+
+struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id)
+{
+ if (WARN_ON(id < 0 || id >= rsnd_src_nr(priv)))
+ id = 0;
+
+ return rsnd_mod_get(rsnd_src_get(priv, id));
+}
+
+int rsnd_src_probe(struct rsnd_priv *priv)
+{
+ struct device_node *node;
+ struct device_node *np;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_src *src;
+ struct clk *clk;
+ char name[RSND_SRC_NAME_SIZE];
+ int i, nr, ret;
+
+ /* This driver doesn't support Gen1 at this point */
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ node = rsnd_src_of_node(priv);
+ if (!node)
+ return 0; /* not used is not error */
+
+ nr = rsnd_node_count(priv, node, SRC_NAME);
+ if (!nr) {
+ ret = -EINVAL;
+ goto rsnd_src_probe_done;
+ }
+
+ src = devm_kcalloc(dev, nr, sizeof(*src), GFP_KERNEL);
+ if (!src) {
+ ret = -ENOMEM;
+ goto rsnd_src_probe_done;
+ }
+
+ priv->src_nr = nr;
+ priv->src = src;
+
+ i = 0;
+ for_each_child_of_node(node, np) {
+ if (!of_device_is_available(np))
+ goto skip;
+
+ i = rsnd_node_fixed_index(dev, np, SRC_NAME, i);
+ if (i < 0) {
+ ret = -EINVAL;
+ of_node_put(np);
+ goto rsnd_src_probe_done;
+ }
+
+ src = rsnd_src_get(priv, i);
+
+ snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d",
+ SRC_NAME, i);
+
+ src->irq = irq_of_parse_and_map(np, 0);
+ if (!src->irq) {
+ ret = -EINVAL;
+ of_node_put(np);
+ goto rsnd_src_probe_done;
+ }
+
+ clk = devm_clk_get(dev, name);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ of_node_put(np);
+ goto rsnd_src_probe_done;
+ }
+
+ ret = rsnd_mod_init(priv, rsnd_mod_get(src),
+ &rsnd_src_ops, clk, RSND_MOD_SRC, i);
+ if (ret) {
+ of_node_put(np);
+ goto rsnd_src_probe_done;
+ }
+
+skip:
+ i++;
+ }
+
+ ret = 0;
+
+rsnd_src_probe_done:
+ of_node_put(node);
+
+ return ret;
+}
+
+void rsnd_src_remove(struct rsnd_priv *priv)
+{
+ struct rsnd_src *src;
+ int i;
+
+ for_each_rsnd_src(src, priv, i) {
+ rsnd_mod_quit(rsnd_mod_get(src));
+ }
+}
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
new file mode 100644
index 000000000..cb7fff489
--- /dev/null
+++ b/sound/soc/sh/rcar/ssi.c
@@ -0,0 +1,1255 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Renesas R-Car SSIU/SSI support
+//
+// Copyright (C) 2013 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+// Based on fsi.c
+// Kuninori Morimoto <morimoto.kuninori@renesas.com>
+
+/*
+ * you can enable below define if you don't need
+ * SSI interrupt status debug message when debugging
+ * see rsnd_print_irq_status()
+ *
+ * #define RSND_DEBUG_NO_IRQ_STATUS 1
+ */
+
+#include <sound/simple_card_utils.h>
+#include <linux/delay.h>
+#include "rsnd.h"
+#define RSND_SSI_NAME_SIZE 16
+
+/*
+ * SSICR
+ */
+#define FORCE (1u << 31) /* Fixed */
+#define DMEN (1u << 28) /* DMA Enable */
+#define UIEN (1u << 27) /* Underflow Interrupt Enable */
+#define OIEN (1u << 26) /* Overflow Interrupt Enable */
+#define IIEN (1u << 25) /* Idle Mode Interrupt Enable */
+#define DIEN (1u << 24) /* Data Interrupt Enable */
+#define CHNL_4 (1u << 22) /* Channels */
+#define CHNL_6 (2u << 22) /* Channels */
+#define CHNL_8 (3u << 22) /* Channels */
+#define DWL_MASK (7u << 19) /* Data Word Length mask */
+#define DWL_8 (0u << 19) /* Data Word Length */
+#define DWL_16 (1u << 19) /* Data Word Length */
+#define DWL_18 (2u << 19) /* Data Word Length */
+#define DWL_20 (3u << 19) /* Data Word Length */
+#define DWL_22 (4u << 19) /* Data Word Length */
+#define DWL_24 (5u << 19) /* Data Word Length */
+#define DWL_32 (6u << 19) /* Data Word Length */
+
+/*
+ * System word length
+ */
+#define SWL_16 (1 << 16) /* R/W System Word Length */
+#define SWL_24 (2 << 16) /* R/W System Word Length */
+#define SWL_32 (3 << 16) /* R/W System Word Length */
+
+#define SCKD (1 << 15) /* Serial Bit Clock Direction */
+#define SWSD (1 << 14) /* Serial WS Direction */
+#define SCKP (1 << 13) /* Serial Bit Clock Polarity */
+#define SWSP (1 << 12) /* Serial WS Polarity */
+#define SDTA (1 << 10) /* Serial Data Alignment */
+#define PDTA (1 << 9) /* Parallel Data Alignment */
+#define DEL (1 << 8) /* Serial Data Delay */
+#define CKDV(v) (v << 4) /* Serial Clock Division Ratio */
+#define TRMD (1 << 1) /* Transmit/Receive Mode Select */
+#define EN (1 << 0) /* SSI Module Enable */
+
+/*
+ * SSISR
+ */
+#define UIRQ (1 << 27) /* Underflow Error Interrupt Status */
+#define OIRQ (1 << 26) /* Overflow Error Interrupt Status */
+#define IIRQ (1 << 25) /* Idle Mode Interrupt Status */
+#define DIRQ (1 << 24) /* Data Interrupt Status Flag */
+
+/*
+ * SSIWSR
+ */
+#define CONT (1 << 8) /* WS Continue Function */
+#define WS_MODE (1 << 0) /* WS Mode */
+
+#define SSI_NAME "ssi"
+
+struct rsnd_ssi {
+ struct rsnd_mod mod;
+
+ u32 flags;
+ u32 cr_own;
+ u32 cr_clk;
+ u32 cr_mode;
+ u32 cr_en;
+ u32 wsr;
+ int chan;
+ int rate;
+ int irq;
+ unsigned int usrcnt;
+
+ /* for PIO */
+ int byte_pos;
+ int byte_per_period;
+ int next_period_byte;
+};
+
+/* flags */
+#define RSND_SSI_CLK_PIN_SHARE (1 << 0)
+#define RSND_SSI_NO_BUSIF (1 << 1) /* SSI+DMA without BUSIF */
+#define RSND_SSI_PROBED (1 << 2)
+
+#define for_each_rsnd_ssi(pos, priv, i) \
+ for (i = 0; \
+ (i < rsnd_ssi_nr(priv)) && \
+ ((pos) = ((struct rsnd_ssi *)(priv)->ssi + i)); \
+ i++)
+
+#define rsnd_ssi_get(priv, id) ((struct rsnd_ssi *)(priv->ssi) + id)
+#define rsnd_ssi_nr(priv) ((priv)->ssi_nr)
+#define rsnd_mod_to_ssi(_mod) container_of((_mod), struct rsnd_ssi, mod)
+#define rsnd_ssi_is_parent(ssi, io) ((ssi) == rsnd_io_to_mod_ssip(io))
+#define rsnd_ssi_is_multi_secondary(mod, io) \
+ (rsnd_ssi_multi_secondaries(io) & (1 << rsnd_mod_id(mod)))
+#define rsnd_ssi_is_run_mods(mod, io) \
+ (rsnd_ssi_run_mods(io) & (1 << rsnd_mod_id(mod)))
+#define rsnd_ssi_can_output_clk(mod) (!__rsnd_ssi_is_pin_sharing(mod))
+
+int rsnd_ssi_use_busif(struct rsnd_dai_stream *io)
+{
+ struct rsnd_mod *mod = rsnd_io_to_mod_ssi(io);
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ int use_busif = 0;
+
+ if (!rsnd_ssi_is_dma_mode(mod))
+ return 0;
+
+ if (!(rsnd_flags_has(ssi, RSND_SSI_NO_BUSIF)))
+ use_busif = 1;
+ if (rsnd_io_to_mod_src(io))
+ use_busif = 1;
+
+ return use_busif;
+}
+
+static void rsnd_ssi_status_clear(struct rsnd_mod *mod)
+{
+ rsnd_mod_write(mod, SSISR, 0);
+}
+
+static u32 rsnd_ssi_status_get(struct rsnd_mod *mod)
+{
+ return rsnd_mod_read(mod, SSISR);
+}
+
+static void rsnd_ssi_status_check(struct rsnd_mod *mod,
+ u32 bit)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ u32 status;
+ int i;
+
+ for (i = 0; i < 1024; i++) {
+ status = rsnd_ssi_status_get(mod);
+ if (status & bit)
+ return;
+
+ udelay(5);
+ }
+
+ dev_warn(dev, "%s status check failed\n", rsnd_mod_name(mod));
+}
+
+static u32 rsnd_ssi_multi_secondaries(struct rsnd_dai_stream *io)
+{
+ static const enum rsnd_mod_type types[] = {
+ RSND_MOD_SSIM1,
+ RSND_MOD_SSIM2,
+ RSND_MOD_SSIM3,
+ };
+ int i, mask;
+
+ mask = 0;
+ for (i = 0; i < ARRAY_SIZE(types); i++) {
+ struct rsnd_mod *mod = rsnd_io_to_mod(io, types[i]);
+
+ if (!mod)
+ continue;
+
+ mask |= 1 << rsnd_mod_id(mod);
+ }
+
+ return mask;
+}
+
+static u32 rsnd_ssi_run_mods(struct rsnd_dai_stream *io)
+{
+ struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
+ struct rsnd_mod *ssi_parent_mod = rsnd_io_to_mod_ssip(io);
+ u32 mods;
+
+ mods = rsnd_ssi_multi_secondaries_runtime(io) |
+ 1 << rsnd_mod_id(ssi_mod);
+
+ if (ssi_parent_mod)
+ mods |= 1 << rsnd_mod_id(ssi_parent_mod);
+
+ return mods;
+}
+
+u32 rsnd_ssi_multi_secondaries_runtime(struct rsnd_dai_stream *io)
+{
+ if (rsnd_runtime_is_multi_ssi(io))
+ return rsnd_ssi_multi_secondaries(io);
+
+ return 0;
+}
+
+static u32 rsnd_rdai_width_to_swl(struct rsnd_dai *rdai)
+{
+ struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int width = rsnd_rdai_width_get(rdai);
+
+ switch (width) {
+ case 32: return SWL_32;
+ case 24: return SWL_24;
+ case 16: return SWL_16;
+ }
+
+ dev_err(dev, "unsupported slot width value: %d\n", width);
+ return 0;
+}
+
+unsigned int rsnd_ssi_clk_query(struct rsnd_dai *rdai,
+ int param1, int param2, int *idx)
+{
+ struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
+ static const int ssi_clk_mul_table[] = {
+ 1, 2, 4, 8, 16, 6, 12,
+ };
+ int j, ret;
+ unsigned int main_rate;
+ int width = rsnd_rdai_width_get(rdai);
+
+ for (j = 0; j < ARRAY_SIZE(ssi_clk_mul_table); j++) {
+
+ /*
+ * It will set SSIWSR.CONT here, but SSICR.CKDV = 000
+ * with it is not allowed. (SSIWSR.WS_MODE with
+ * SSICR.CKDV = 000 is not allowed either).
+ * Skip it. See SSICR.CKDV
+ */
+ if (j == 0)
+ continue;
+
+ main_rate = width * param1 * param2 * ssi_clk_mul_table[j];
+
+ ret = rsnd_adg_clk_query(priv, main_rate);
+ if (ret < 0)
+ continue;
+
+ if (idx)
+ *idx = j;
+
+ return main_rate;
+ }
+
+ return 0;
+}
+
+static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ int chan = rsnd_runtime_channel_for_ssi(io);
+ int idx, ret;
+ unsigned int main_rate;
+ unsigned int rate = rsnd_io_is_play(io) ?
+ rsnd_src_get_out_rate(priv, io) :
+ rsnd_src_get_in_rate(priv, io);
+
+ if (!rsnd_rdai_is_clk_master(rdai))
+ return 0;
+
+ if (!rsnd_ssi_can_output_clk(mod))
+ return 0;
+
+ if (rsnd_ssi_is_multi_secondary(mod, io))
+ return 0;
+
+ if (rsnd_runtime_is_tdm_split(io))
+ chan = rsnd_io_converted_chan(io);
+
+ chan = rsnd_channel_normalization(chan);
+
+ if (ssi->usrcnt > 0) {
+ if (ssi->rate != rate) {
+ dev_err(dev, "SSI parent/child should use same rate\n");
+ return -EINVAL;
+ }
+
+ if (ssi->chan != chan) {
+ dev_err(dev, "SSI parent/child should use same chan\n");
+ return -EINVAL;
+ }
+
+ return 0;
+ }
+
+ main_rate = rsnd_ssi_clk_query(rdai, rate, chan, &idx);
+ if (!main_rate) {
+ dev_err(dev, "unsupported clock rate\n");
+ return -EIO;
+ }
+
+ ret = rsnd_adg_ssi_clk_try_start(mod, main_rate);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * SSI clock will be output contiguously
+ * by below settings.
+ * This means, rsnd_ssi_master_clk_start()
+ * and rsnd_ssi_register_setup() are necessary
+ * for SSI parent
+ *
+ * SSICR : FORCE, SCKD, SWSD
+ * SSIWSR : CONT
+ */
+ ssi->cr_clk = FORCE | rsnd_rdai_width_to_swl(rdai) |
+ SCKD | SWSD | CKDV(idx);
+ ssi->wsr = CONT;
+ ssi->rate = rate;
+ ssi->chan = chan;
+
+ dev_dbg(dev, "%s outputs %d chan %u Hz\n",
+ rsnd_mod_name(mod), chan, rate);
+
+ return 0;
+}
+
+static void rsnd_ssi_master_clk_stop(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+
+ if (!rsnd_rdai_is_clk_master(rdai))
+ return;
+
+ if (!rsnd_ssi_can_output_clk(mod))
+ return;
+
+ if (ssi->usrcnt > 1)
+ return;
+
+ ssi->cr_clk = 0;
+ ssi->rate = 0;
+ ssi->chan = 0;
+
+ rsnd_adg_ssi_clk_stop(mod);
+}
+
+static void rsnd_ssi_config_init(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ u32 cr_own = ssi->cr_own;
+ u32 cr_mode = ssi->cr_mode;
+ u32 wsr = ssi->wsr;
+ int width;
+ int is_tdm, is_tdm_split;
+
+ is_tdm = rsnd_runtime_is_tdm(io);
+ is_tdm_split = rsnd_runtime_is_tdm_split(io);
+
+ if (is_tdm)
+ dev_dbg(dev, "TDM mode\n");
+ if (is_tdm_split)
+ dev_dbg(dev, "TDM Split mode\n");
+
+ cr_own |= FORCE | rsnd_rdai_width_to_swl(rdai);
+
+ if (rdai->bit_clk_inv)
+ cr_own |= SCKP;
+ if (rdai->frm_clk_inv && !is_tdm)
+ cr_own |= SWSP;
+ if (rdai->data_alignment)
+ cr_own |= SDTA;
+ if (rdai->sys_delay)
+ cr_own |= DEL;
+
+ /*
+ * TDM Mode
+ * see
+ * rsnd_ssiu_init_gen2()
+ */
+ if (is_tdm || is_tdm_split) {
+ wsr |= WS_MODE;
+ cr_own |= CHNL_8;
+ }
+
+ /*
+ * We shouldn't exchange SWSP after running.
+ * This means, parent needs to care it.
+ */
+ if (rsnd_ssi_is_parent(mod, io))
+ goto init_end;
+
+ if (rsnd_io_is_play(io))
+ cr_own |= TRMD;
+
+ cr_own &= ~DWL_MASK;
+ width = snd_pcm_format_width(runtime->format);
+ if (is_tdm_split) {
+ /*
+ * The SWL and DWL bits in SSICR should be fixed at 32-bit
+ * setting when TDM split mode.
+ * see datasheet
+ * Operation :: TDM Format Split Function (TDM Split Mode)
+ */
+ width = 32;
+ }
+
+ switch (width) {
+ case 8:
+ cr_own |= DWL_8;
+ break;
+ case 16:
+ cr_own |= DWL_16;
+ break;
+ case 24:
+ cr_own |= DWL_24;
+ break;
+ case 32:
+ cr_own |= DWL_32;
+ break;
+ }
+
+ if (rsnd_ssi_is_dma_mode(mod)) {
+ cr_mode = UIEN | OIEN | /* over/under run */
+ DMEN; /* DMA : enable DMA */
+ } else {
+ cr_mode = DIEN; /* PIO : enable Data interrupt */
+ }
+
+init_end:
+ ssi->cr_own = cr_own;
+ ssi->cr_mode = cr_mode;
+ ssi->wsr = wsr;
+}
+
+static void rsnd_ssi_register_setup(struct rsnd_mod *mod)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+
+ rsnd_mod_write(mod, SSIWSR, ssi->wsr);
+ rsnd_mod_write(mod, SSICR, ssi->cr_own |
+ ssi->cr_clk |
+ ssi->cr_mode |
+ ssi->cr_en);
+}
+
+/*
+ * SSI mod common functions
+ */
+static int rsnd_ssi_init(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ int ret;
+
+ if (!rsnd_ssi_is_run_mods(mod, io))
+ return 0;
+
+ ret = rsnd_ssi_master_clk_start(mod, io);
+ if (ret < 0)
+ return ret;
+
+ ssi->usrcnt++;
+
+ ret = rsnd_mod_power_on(mod);
+ if (ret < 0)
+ return ret;
+
+ rsnd_ssi_config_init(mod, io);
+
+ rsnd_ssi_register_setup(mod);
+
+ /* clear error status */
+ rsnd_ssi_status_clear(mod);
+
+ return 0;
+}
+
+static int rsnd_ssi_quit(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ if (!rsnd_ssi_is_run_mods(mod, io))
+ return 0;
+
+ if (!ssi->usrcnt) {
+ dev_err(dev, "%s usrcnt error\n", rsnd_mod_name(mod));
+ return -EIO;
+ }
+
+ rsnd_ssi_master_clk_stop(mod, io);
+
+ rsnd_mod_power_off(mod);
+
+ ssi->usrcnt--;
+
+ if (!ssi->usrcnt) {
+ ssi->cr_own = 0;
+ ssi->cr_mode = 0;
+ ssi->wsr = 0;
+ }
+
+ return 0;
+}
+
+static int rsnd_ssi_hw_params(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ unsigned int fmt_width = snd_pcm_format_width(params_format(params));
+
+ if (fmt_width > rdai->chan_width) {
+ struct rsnd_priv *priv = rsnd_io_to_priv(io);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ dev_err(dev, "invalid combination of slot-width and format-data-width\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int rsnd_ssi_start(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+
+ if (!rsnd_ssi_is_run_mods(mod, io))
+ return 0;
+
+ /*
+ * EN will be set via SSIU :: SSI_CONTROL
+ * if Multi channel mode
+ */
+ if (rsnd_ssi_multi_secondaries_runtime(io))
+ return 0;
+
+ /*
+ * EN is for data output.
+ * SSI parent EN is not needed.
+ */
+ if (rsnd_ssi_is_parent(mod, io))
+ return 0;
+
+ ssi->cr_en = EN;
+
+ rsnd_mod_write(mod, SSICR, ssi->cr_own |
+ ssi->cr_clk |
+ ssi->cr_mode |
+ ssi->cr_en);
+
+ return 0;
+}
+
+static int rsnd_ssi_stop(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ u32 cr;
+
+ if (!rsnd_ssi_is_run_mods(mod, io))
+ return 0;
+
+ if (rsnd_ssi_is_parent(mod, io))
+ return 0;
+
+ cr = ssi->cr_own |
+ ssi->cr_clk;
+
+ /*
+ * disable all IRQ,
+ * Playback: Wait all data was sent
+ * Capture: It might not receave data. Do nothing
+ */
+ if (rsnd_io_is_play(io)) {
+ rsnd_mod_write(mod, SSICR, cr | ssi->cr_en);
+ rsnd_ssi_status_check(mod, DIRQ);
+ }
+
+ /* In multi-SSI mode, stop is performed by setting ssi0129 in
+ * SSI_CONTROL to 0 (in rsnd_ssio_stop_gen2). Do nothing here.
+ */
+ if (rsnd_ssi_multi_secondaries_runtime(io))
+ return 0;
+
+ /*
+ * disable SSI,
+ * and, wait idle state
+ */
+ rsnd_mod_write(mod, SSICR, cr); /* disabled all */
+ rsnd_ssi_status_check(mod, IIRQ);
+
+ ssi->cr_en = 0;
+
+ return 0;
+}
+
+static int rsnd_ssi_irq(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv,
+ int enable)
+{
+ u32 val = 0;
+ int is_tdm, is_tdm_split;
+ int id = rsnd_mod_id(mod);
+
+ is_tdm = rsnd_runtime_is_tdm(io);
+ is_tdm_split = rsnd_runtime_is_tdm_split(io);
+
+ if (rsnd_is_gen1(priv))
+ return 0;
+
+ if (rsnd_ssi_is_parent(mod, io))
+ return 0;
+
+ if (!rsnd_ssi_is_run_mods(mod, io))
+ return 0;
+
+ if (enable)
+ val = rsnd_ssi_is_dma_mode(mod) ? 0x0e000000 : 0x0f000000;
+
+ if (is_tdm || is_tdm_split) {
+ switch (id) {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 9:
+ val |= 0x0000ff00;
+ break;
+ }
+ }
+
+ rsnd_mod_write(mod, SSI_INT_ENABLE, val);
+
+ return 0;
+}
+
+static bool rsnd_ssi_pio_interrupt(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io);
+static void __rsnd_ssi_interrupt(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ int is_dma = rsnd_ssi_is_dma_mode(mod);
+ u32 status;
+ bool elapsed = false;
+ bool stop = false;
+
+ spin_lock(&priv->lock);
+
+ /* ignore all cases if not working */
+ if (!rsnd_io_is_working(io))
+ goto rsnd_ssi_interrupt_out;
+
+ status = rsnd_ssi_status_get(mod);
+
+ /* PIO only */
+ if (!is_dma && (status & DIRQ))
+ elapsed = rsnd_ssi_pio_interrupt(mod, io);
+
+ /* DMA only */
+ if (is_dma && (status & (UIRQ | OIRQ))) {
+ rsnd_print_irq_status(dev, "%s err status : 0x%08x\n",
+ rsnd_mod_name(mod), status);
+
+ stop = true;
+ }
+
+ stop |= rsnd_ssiu_busif_err_status_clear(mod);
+
+ rsnd_ssi_status_clear(mod);
+rsnd_ssi_interrupt_out:
+ spin_unlock(&priv->lock);
+
+ if (elapsed)
+ rsnd_dai_period_elapsed(io);
+
+ if (stop)
+ snd_pcm_stop_xrun(io->substream);
+
+}
+
+static irqreturn_t rsnd_ssi_interrupt(int irq, void *data)
+{
+ struct rsnd_mod *mod = data;
+
+ rsnd_mod_interrupt(mod, __rsnd_ssi_interrupt);
+
+ return IRQ_HANDLED;
+}
+
+static u32 *rsnd_ssi_get_status(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ enum rsnd_mod_type type)
+{
+ /*
+ * SSIP (= SSI parent) needs to be special, otherwise,
+ * 2nd SSI might doesn't start. see also rsnd_mod_call()
+ *
+ * We can't include parent SSI status on SSI, because we don't know
+ * how many SSI requests parent SSI. Thus, it is localed on "io" now.
+ * ex) trouble case
+ * Playback: SSI0
+ * Capture : SSI1 (needs SSI0)
+ *
+ * 1) start Capture -> SSI0/SSI1 are started.
+ * 2) start Playback -> SSI0 doesn't work, because it is already
+ * marked as "started" on 1)
+ *
+ * OTOH, using each mod's status is good for MUX case.
+ * It doesn't need to start in 2nd start
+ * ex)
+ * IO-0: SRC0 -> CTU1 -+-> MUX -> DVC -> SSIU -> SSI0
+ * |
+ * IO-1: SRC1 -> CTU2 -+
+ *
+ * 1) start IO-0 -> start SSI0
+ * 2) start IO-1 -> SSI0 doesn't need to start, because it is
+ * already started on 1)
+ */
+ if (type == RSND_MOD_SSIP)
+ return &io->parent_ssi_status;
+
+ return rsnd_mod_get_status(mod, io, type);
+}
+
+/*
+ * SSI PIO
+ */
+static void rsnd_ssi_parent_attach(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+
+ if (!__rsnd_ssi_is_pin_sharing(mod))
+ return;
+
+ if (!rsnd_rdai_is_clk_master(rdai))
+ return;
+
+ if (rsnd_ssi_is_multi_secondary(mod, io))
+ return;
+
+ switch (rsnd_mod_id(mod)) {
+ case 1:
+ case 2:
+ case 9:
+ rsnd_dai_connect(rsnd_ssi_mod_get(priv, 0), io, RSND_MOD_SSIP);
+ break;
+ case 4:
+ rsnd_dai_connect(rsnd_ssi_mod_get(priv, 3), io, RSND_MOD_SSIP);
+ break;
+ case 8:
+ rsnd_dai_connect(rsnd_ssi_mod_get(priv, 7), io, RSND_MOD_SSIP);
+ break;
+ }
+}
+
+static int rsnd_ssi_pcm_new(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ /*
+ * rsnd_rdai_is_clk_master() will be enabled after set_fmt,
+ * and, pcm_new will be called after it.
+ * This function reuse pcm_new at this point.
+ */
+ rsnd_ssi_parent_attach(mod, io);
+
+ return 0;
+}
+
+static int rsnd_ssi_common_probe(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ int ret = 0;
+
+ /*
+ * SSIP/SSIU/IRQ are not needed on
+ * SSI Multi secondaries
+ */
+ if (rsnd_ssi_is_multi_secondary(mod, io))
+ return 0;
+
+ /*
+ * It can't judge ssi parent at this point
+ * see rsnd_ssi_pcm_new()
+ */
+
+ /*
+ * SSI might be called again as PIO fallback
+ * It is easy to manual handling for IRQ request/free
+ *
+ * OTOH, this function might be called many times if platform is
+ * using MIX. It needs xxx_attach() many times on xxx_probe().
+ * Because of it, we can't control .probe/.remove calling count by
+ * mod->status.
+ * But it don't need to call request_irq() many times.
+ * Let's control it by RSND_SSI_PROBED flag.
+ */
+ if (!rsnd_flags_has(ssi, RSND_SSI_PROBED)) {
+ ret = request_irq(ssi->irq,
+ rsnd_ssi_interrupt,
+ IRQF_SHARED,
+ dev_name(dev), mod);
+
+ rsnd_flags_set(ssi, RSND_SSI_PROBED);
+ }
+
+ return ret;
+}
+
+static int rsnd_ssi_common_remove(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ struct rsnd_mod *pure_ssi_mod = rsnd_io_to_mod_ssi(io);
+
+ /* Do nothing if non SSI (= SSI parent, multi SSI) mod */
+ if (pure_ssi_mod != mod)
+ return 0;
+
+ /* PIO will request IRQ again */
+ if (rsnd_flags_has(ssi, RSND_SSI_PROBED)) {
+ free_irq(ssi->irq, mod);
+
+ rsnd_flags_del(ssi, RSND_SSI_PROBED);
+ }
+
+ return 0;
+}
+
+/*
+ * SSI PIO functions
+ */
+static bool rsnd_ssi_pio_interrupt(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ u32 *buf = (u32 *)(runtime->dma_area + ssi->byte_pos);
+ int shift = 0;
+ int byte_pos;
+ bool elapsed = false;
+
+ if (snd_pcm_format_width(runtime->format) == 24)
+ shift = 8;
+
+ /*
+ * 8/16/32 data can be assesse to TDR/RDR register
+ * directly as 32bit data
+ * see rsnd_ssi_init()
+ */
+ if (rsnd_io_is_play(io))
+ rsnd_mod_write(mod, SSITDR, (*buf) << shift);
+ else
+ *buf = (rsnd_mod_read(mod, SSIRDR) >> shift);
+
+ byte_pos = ssi->byte_pos + sizeof(*buf);
+
+ if (byte_pos >= ssi->next_period_byte) {
+ int period_pos = byte_pos / ssi->byte_per_period;
+
+ if (period_pos >= runtime->periods) {
+ byte_pos = 0;
+ period_pos = 0;
+ }
+
+ ssi->next_period_byte = (period_pos + 1) * ssi->byte_per_period;
+
+ elapsed = true;
+ }
+
+ WRITE_ONCE(ssi->byte_pos, byte_pos);
+
+ return elapsed;
+}
+
+static int rsnd_ssi_pio_init(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+
+ if (!rsnd_ssi_is_parent(mod, io)) {
+ ssi->byte_pos = 0;
+ ssi->byte_per_period = runtime->period_size *
+ runtime->channels *
+ samples_to_bytes(runtime, 1);
+ ssi->next_period_byte = ssi->byte_per_period;
+ }
+
+ return rsnd_ssi_init(mod, io, priv);
+}
+
+static int rsnd_ssi_pio_pointer(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ snd_pcm_uframes_t *pointer)
+{
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+ struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+
+ *pointer = bytes_to_frames(runtime, READ_ONCE(ssi->byte_pos));
+
+ return 0;
+}
+
+static struct rsnd_mod_ops rsnd_ssi_pio_ops = {
+ .name = SSI_NAME,
+ .probe = rsnd_ssi_common_probe,
+ .remove = rsnd_ssi_common_remove,
+ .init = rsnd_ssi_pio_init,
+ .quit = rsnd_ssi_quit,
+ .start = rsnd_ssi_start,
+ .stop = rsnd_ssi_stop,
+ .irq = rsnd_ssi_irq,
+ .pointer = rsnd_ssi_pio_pointer,
+ .pcm_new = rsnd_ssi_pcm_new,
+ .hw_params = rsnd_ssi_hw_params,
+ .get_status = rsnd_ssi_get_status,
+};
+
+static int rsnd_ssi_dma_probe(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ int ret;
+
+ /*
+ * SSIP/SSIU/IRQ/DMA are not needed on
+ * SSI Multi secondaries
+ */
+ if (rsnd_ssi_is_multi_secondary(mod, io))
+ return 0;
+
+ ret = rsnd_ssi_common_probe(mod, io, priv);
+ if (ret)
+ return ret;
+
+ /* SSI probe might be called many times in MUX multi path */
+ ret = rsnd_dma_attach(io, mod, &io->dma);
+
+ return ret;
+}
+
+static int rsnd_ssi_fallback(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ /*
+ * fallback to PIO
+ *
+ * SSI .probe might be called again.
+ * see
+ * rsnd_rdai_continuance_probe()
+ */
+ mod->ops = &rsnd_ssi_pio_ops;
+
+ dev_info(dev, "%s fallback to PIO mode\n", rsnd_mod_name(mod));
+
+ return 0;
+}
+
+static struct dma_chan *rsnd_ssi_dma_req(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ int is_play = rsnd_io_is_play(io);
+ char *name;
+
+ /*
+ * It should use "rcar_sound,ssiu" on DT.
+ * But, we need to keep compatibility for old version.
+ *
+ * If it has "rcar_sound.ssiu", it will be used.
+ * If not, "rcar_sound.ssi" will be used.
+ * see
+ * rsnd_ssiu_dma_req()
+ * rsnd_dma_of_path()
+ */
+
+ if (rsnd_ssi_use_busif(io))
+ name = is_play ? "rxu" : "txu";
+ else
+ name = is_play ? "rx" : "tx";
+
+ return rsnd_dma_request_channel(rsnd_ssi_of_node(priv),
+ SSI_NAME, mod, name);
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void rsnd_ssi_debug_info(struct seq_file *m,
+ struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
+
+ seq_printf(m, "clock: %s\n", rsnd_rdai_is_clk_master(rdai) ?
+ "provider" : "consumer");
+ seq_printf(m, "bit_clk_inv: %d\n", rdai->bit_clk_inv);
+ seq_printf(m, "frm_clk_inv: %d\n", rdai->frm_clk_inv);
+ seq_printf(m, "pin share: %d\n", __rsnd_ssi_is_pin_sharing(mod));
+ seq_printf(m, "can out clk: %d\n", rsnd_ssi_can_output_clk(mod));
+ seq_printf(m, "multi secondary: %d\n", rsnd_ssi_is_multi_secondary(mod, io));
+ seq_printf(m, "tdm: %d, %d\n", rsnd_runtime_is_tdm(io),
+ rsnd_runtime_is_tdm_split(io));
+ seq_printf(m, "chan: %d\n", ssi->chan);
+ seq_printf(m, "user: %d\n", ssi->usrcnt);
+
+ rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SSI,
+ rsnd_mod_id(mod) * 0x40, 0x40);
+}
+#define DEBUG_INFO .debug_info = rsnd_ssi_debug_info
+#else
+#define DEBUG_INFO
+#endif
+
+static struct rsnd_mod_ops rsnd_ssi_dma_ops = {
+ .name = SSI_NAME,
+ .dma_req = rsnd_ssi_dma_req,
+ .probe = rsnd_ssi_dma_probe,
+ .remove = rsnd_ssi_common_remove,
+ .init = rsnd_ssi_init,
+ .quit = rsnd_ssi_quit,
+ .start = rsnd_ssi_start,
+ .stop = rsnd_ssi_stop,
+ .irq = rsnd_ssi_irq,
+ .pcm_new = rsnd_ssi_pcm_new,
+ .fallback = rsnd_ssi_fallback,
+ .hw_params = rsnd_ssi_hw_params,
+ .get_status = rsnd_ssi_get_status,
+ DEBUG_INFO
+};
+
+int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod)
+{
+ return mod->ops == &rsnd_ssi_dma_ops;
+}
+
+/*
+ * ssi mod function
+ */
+static void rsnd_ssi_connect(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ static const enum rsnd_mod_type types[] = {
+ RSND_MOD_SSI,
+ RSND_MOD_SSIM1,
+ RSND_MOD_SSIM2,
+ RSND_MOD_SSIM3,
+ };
+ enum rsnd_mod_type type;
+ int i;
+
+ /* try SSI -> SSIM1 -> SSIM2 -> SSIM3 */
+ for (i = 0; i < ARRAY_SIZE(types); i++) {
+ type = types[i];
+ if (!rsnd_io_to_mod(io, type)) {
+ rsnd_dai_connect(mod, io, type);
+ rsnd_rdai_channels_set(rdai, (i + 1) * 2);
+ rsnd_rdai_ssi_lane_set(rdai, (i + 1));
+ return;
+ }
+ }
+}
+
+void rsnd_parse_connect_ssi(struct rsnd_dai *rdai,
+ struct device_node *playback,
+ struct device_node *capture)
+{
+ struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *node;
+ struct device_node *np;
+ int i;
+
+ node = rsnd_ssi_of_node(priv);
+ if (!node)
+ return;
+
+ i = 0;
+ for_each_child_of_node(node, np) {
+ struct rsnd_mod *mod;
+
+ i = rsnd_node_fixed_index(dev, np, SSI_NAME, i);
+ if (i < 0) {
+ of_node_put(np);
+ break;
+ }
+
+ mod = rsnd_ssi_mod_get(priv, i);
+
+ if (np == playback)
+ rsnd_ssi_connect(mod, &rdai->playback);
+ if (np == capture)
+ rsnd_ssi_connect(mod, &rdai->capture);
+ i++;
+ }
+
+ of_node_put(node);
+}
+
+struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id)
+{
+ if (WARN_ON(id < 0 || id >= rsnd_ssi_nr(priv)))
+ id = 0;
+
+ return rsnd_mod_get(rsnd_ssi_get(priv, id));
+}
+
+int __rsnd_ssi_is_pin_sharing(struct rsnd_mod *mod)
+{
+ if (!mod)
+ return 0;
+
+ return !!(rsnd_flags_has(rsnd_mod_to_ssi(mod), RSND_SSI_CLK_PIN_SHARE));
+}
+
+int rsnd_ssi_probe(struct rsnd_priv *priv)
+{
+ struct device_node *node;
+ struct device_node *np;
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct rsnd_mod_ops *ops;
+ struct clk *clk;
+ struct rsnd_ssi *ssi;
+ char name[RSND_SSI_NAME_SIZE];
+ int i, nr, ret;
+
+ node = rsnd_ssi_of_node(priv);
+ if (!node)
+ return -EINVAL;
+
+ nr = rsnd_node_count(priv, node, SSI_NAME);
+ if (!nr) {
+ ret = -EINVAL;
+ goto rsnd_ssi_probe_done;
+ }
+
+ ssi = devm_kcalloc(dev, nr, sizeof(*ssi), GFP_KERNEL);
+ if (!ssi) {
+ ret = -ENOMEM;
+ goto rsnd_ssi_probe_done;
+ }
+
+ priv->ssi = ssi;
+ priv->ssi_nr = nr;
+
+ i = 0;
+ for_each_child_of_node(node, np) {
+ if (!of_device_is_available(np))
+ goto skip;
+
+ i = rsnd_node_fixed_index(dev, np, SSI_NAME, i);
+ if (i < 0) {
+ ret = -EINVAL;
+ of_node_put(np);
+ goto rsnd_ssi_probe_done;
+ }
+
+ ssi = rsnd_ssi_get(priv, i);
+
+ snprintf(name, RSND_SSI_NAME_SIZE, "%s.%d",
+ SSI_NAME, i);
+
+ clk = devm_clk_get(dev, name);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ of_node_put(np);
+ goto rsnd_ssi_probe_done;
+ }
+
+ if (of_property_read_bool(np, "shared-pin"))
+ rsnd_flags_set(ssi, RSND_SSI_CLK_PIN_SHARE);
+
+ if (of_property_read_bool(np, "no-busif"))
+ rsnd_flags_set(ssi, RSND_SSI_NO_BUSIF);
+
+ ssi->irq = irq_of_parse_and_map(np, 0);
+ if (!ssi->irq) {
+ ret = -EINVAL;
+ of_node_put(np);
+ goto rsnd_ssi_probe_done;
+ }
+
+ if (of_property_read_bool(np, "pio-transfer"))
+ ops = &rsnd_ssi_pio_ops;
+ else
+ ops = &rsnd_ssi_dma_ops;
+
+ ret = rsnd_mod_init(priv, rsnd_mod_get(ssi), ops, clk,
+ RSND_MOD_SSI, i);
+ if (ret) {
+ of_node_put(np);
+ goto rsnd_ssi_probe_done;
+ }
+skip:
+ i++;
+ }
+
+ ret = 0;
+
+rsnd_ssi_probe_done:
+ of_node_put(node);
+
+ return ret;
+}
+
+void rsnd_ssi_remove(struct rsnd_priv *priv)
+{
+ struct rsnd_ssi *ssi;
+ int i;
+
+ for_each_rsnd_ssi(ssi, priv, i) {
+ rsnd_mod_quit(rsnd_mod_get(ssi));
+ }
+}
diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c
new file mode 100644
index 000000000..281bc20d4
--- /dev/null
+++ b/sound/soc/sh/rcar/ssiu.c
@@ -0,0 +1,600 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Renesas R-Car SSIU support
+//
+// Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include "rsnd.h"
+
+#define SSIU_NAME "ssiu"
+
+struct rsnd_ssiu {
+ struct rsnd_mod mod;
+ u32 busif_status[8]; /* for BUSIF0 - BUSIF7 */
+ unsigned int usrcnt;
+ int id;
+ int id_sub;
+};
+
+/* SSI_MODE */
+#define TDM_EXT (1 << 0)
+#define TDM_SPLIT (1 << 8)
+
+#define rsnd_ssiu_nr(priv) ((priv)->ssiu_nr)
+#define rsnd_mod_to_ssiu(_mod) container_of((_mod), struct rsnd_ssiu, mod)
+#define for_each_rsnd_ssiu(pos, priv, i) \
+ for (i = 0; \
+ (i < rsnd_ssiu_nr(priv)) && \
+ ((pos) = ((struct rsnd_ssiu *)(priv)->ssiu + i)); \
+ i++)
+
+/*
+ * SSI Gen2 Gen3
+ * 0 BUSIF0-3 BUSIF0-7
+ * 1 BUSIF0-3 BUSIF0-7
+ * 2 BUSIF0-3 BUSIF0-7
+ * 3 BUSIF0 BUSIF0-7
+ * 4 BUSIF0 BUSIF0-7
+ * 5 BUSIF0 BUSIF0
+ * 6 BUSIF0 BUSIF0
+ * 7 BUSIF0 BUSIF0
+ * 8 BUSIF0 BUSIF0
+ * 9 BUSIF0-3 BUSIF0-7
+ * total 22 52
+ */
+static const int gen2_id[] = { 0, 4, 8, 12, 13, 14, 15, 16, 17, 18 };
+static const int gen3_id[] = { 0, 8, 16, 24, 32, 40, 41, 42, 43, 44 };
+
+/* enable busif buffer over/under run interrupt. */
+#define rsnd_ssiu_busif_err_irq_enable(mod) rsnd_ssiu_busif_err_irq_ctrl(mod, 1)
+#define rsnd_ssiu_busif_err_irq_disable(mod) rsnd_ssiu_busif_err_irq_ctrl(mod, 0)
+static void rsnd_ssiu_busif_err_irq_ctrl(struct rsnd_mod *mod, int enable)
+{
+ int id = rsnd_mod_id(mod);
+ int shift, offset;
+ int i;
+
+ switch (id) {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ shift = id;
+ offset = 0;
+ break;
+ case 9:
+ shift = 1;
+ offset = 1;
+ break;
+ default:
+ return;
+ }
+
+ for (i = 0; i < 4; i++) {
+ enum rsnd_reg reg = SSI_SYS_INT_ENABLE((i * 2) + offset);
+ u32 val = 0xf << (shift * 4);
+ u32 sys_int_enable = rsnd_mod_read(mod, reg);
+
+ if (enable)
+ sys_int_enable |= val;
+ else
+ sys_int_enable &= ~val;
+ rsnd_mod_write(mod, reg, sys_int_enable);
+ }
+}
+
+bool rsnd_ssiu_busif_err_status_clear(struct rsnd_mod *mod)
+{
+ bool error = false;
+ int id = rsnd_mod_id(mod);
+ int shift, offset;
+ int i;
+
+ switch (id) {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ shift = id;
+ offset = 0;
+ break;
+ case 9:
+ shift = 1;
+ offset = 1;
+ break;
+ default:
+ goto out;
+ }
+
+ for (i = 0; i < 4; i++) {
+ u32 reg = SSI_SYS_STATUS(i * 2) + offset;
+ u32 status = rsnd_mod_read(mod, reg);
+ u32 val = 0xf << (shift * 4);
+
+ status &= val;
+ if (status) {
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ struct device *dev = rsnd_priv_to_dev(priv);
+
+ rsnd_print_irq_status(dev, "%s err status : 0x%08x\n",
+ rsnd_mod_name(mod), status);
+ error = true;
+ }
+ rsnd_mod_write(mod, reg, val);
+ }
+out:
+ return error;
+}
+
+static u32 *rsnd_ssiu_get_status(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ enum rsnd_mod_type type)
+{
+ struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod);
+ int busif = rsnd_mod_id_sub(mod);
+
+ return &ssiu->busif_status[busif];
+}
+
+static int rsnd_ssiu_init(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
+ u32 ssis = rsnd_ssi_multi_secondaries_runtime(io);
+ int use_busif = rsnd_ssi_use_busif(io);
+ int id = rsnd_mod_id(mod);
+ int is_clk_master = rsnd_rdai_is_clk_master(rdai);
+ u32 val1, val2;
+
+ /* clear status */
+ rsnd_ssiu_busif_err_status_clear(mod);
+
+ /*
+ * SSI_MODE0
+ */
+ rsnd_mod_bset(mod, SSI_MODE0, (1 << id), !use_busif << id);
+
+ /*
+ * SSI_MODE1 / SSI_MODE2
+ *
+ * FIXME
+ * sharing/multi with SSI0 are mainly supported
+ */
+ val1 = rsnd_mod_read(mod, SSI_MODE1);
+ val2 = rsnd_mod_read(mod, SSI_MODE2);
+ if (rsnd_ssi_is_pin_sharing(io)) {
+
+ ssis |= (1 << id);
+
+ } else if (ssis) {
+ /*
+ * Multi SSI
+ *
+ * set synchronized bit here
+ */
+
+ /* SSI4 is synchronized with SSI3 */
+ if (ssis & (1 << 4))
+ val1 |= (1 << 20);
+ /* SSI012 are synchronized */
+ if (ssis == 0x0006)
+ val1 |= (1 << 4);
+ /* SSI0129 are synchronized */
+ if (ssis == 0x0206)
+ val2 |= (1 << 4);
+ }
+
+ /* SSI1 is sharing pin with SSI0 */
+ if (ssis & (1 << 1))
+ val1 |= is_clk_master ? 0x2 : 0x1;
+
+ /* SSI2 is sharing pin with SSI0 */
+ if (ssis & (1 << 2))
+ val1 |= is_clk_master ? 0x2 << 2 :
+ 0x1 << 2;
+ /* SSI4 is sharing pin with SSI3 */
+ if (ssis & (1 << 4))
+ val1 |= is_clk_master ? 0x2 << 16 :
+ 0x1 << 16;
+ /* SSI9 is sharing pin with SSI0 */
+ if (ssis & (1 << 9))
+ val2 |= is_clk_master ? 0x2 : 0x1;
+
+ rsnd_mod_bset(mod, SSI_MODE1, 0x0013001f, val1);
+ rsnd_mod_bset(mod, SSI_MODE2, 0x00000017, val2);
+
+ /*
+ * Enable busif buffer over/under run interrupt.
+ * It will be handled from ssi.c
+ * see
+ * __rsnd_ssi_interrupt()
+ */
+ rsnd_ssiu_busif_err_irq_enable(mod);
+
+ return 0;
+}
+
+static int rsnd_ssiu_quit(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ /* disable busif buffer over/under run interrupt. */
+ rsnd_ssiu_busif_err_irq_disable(mod);
+
+ return 0;
+}
+
+static struct rsnd_mod_ops rsnd_ssiu_ops_gen1 = {
+ .name = SSIU_NAME,
+ .init = rsnd_ssiu_init,
+ .quit = rsnd_ssiu_quit,
+ .get_status = rsnd_ssiu_get_status,
+};
+
+static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod);
+ u32 has_hdmi0 = rsnd_flags_has(io, RSND_STREAM_HDMI0);
+ u32 has_hdmi1 = rsnd_flags_has(io, RSND_STREAM_HDMI1);
+ int ret;
+ u32 mode = 0;
+
+ ret = rsnd_ssiu_init(mod, io, priv);
+ if (ret < 0)
+ return ret;
+
+ ssiu->usrcnt++;
+
+ /*
+ * TDM Extend/Split Mode
+ * see
+ * rsnd_ssi_config_init()
+ */
+ if (rsnd_runtime_is_tdm(io))
+ mode = TDM_EXT;
+ else if (rsnd_runtime_is_tdm_split(io))
+ mode = TDM_SPLIT;
+
+ rsnd_mod_write(mod, SSI_MODE, mode);
+
+ if (rsnd_ssi_use_busif(io)) {
+ int id = rsnd_mod_id(mod);
+ int busif = rsnd_mod_id_sub(mod);
+ enum rsnd_reg adinr_reg, mode_reg, dalign_reg;
+
+ if ((id == 9) && (busif >= 4)) {
+ adinr_reg = SSI9_BUSIF_ADINR(busif);
+ mode_reg = SSI9_BUSIF_MODE(busif);
+ dalign_reg = SSI9_BUSIF_DALIGN(busif);
+ } else {
+ adinr_reg = SSI_BUSIF_ADINR(busif);
+ mode_reg = SSI_BUSIF_MODE(busif);
+ dalign_reg = SSI_BUSIF_DALIGN(busif);
+ }
+
+ rsnd_mod_write(mod, adinr_reg,
+ rsnd_get_adinr_bit(mod, io) |
+ (rsnd_io_is_play(io) ?
+ rsnd_runtime_channel_after_ctu(io) :
+ rsnd_runtime_channel_original(io)));
+ rsnd_mod_write(mod, mode_reg,
+ rsnd_get_busif_shift(io, mod) | 1);
+ rsnd_mod_write(mod, dalign_reg,
+ rsnd_get_dalign(mod, io));
+ }
+
+ if (has_hdmi0 || has_hdmi1) {
+ enum rsnd_mod_type rsnd_ssi_array[] = {
+ RSND_MOD_SSIM1,
+ RSND_MOD_SSIM2,
+ RSND_MOD_SSIM3,
+ };
+ struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
+ struct rsnd_mod *pos;
+ u32 val;
+ int i;
+
+ i = rsnd_mod_id(ssi_mod);
+
+ /* output all same SSI as default */
+ val = i << 16 |
+ i << 20 |
+ i << 24 |
+ i << 28 |
+ i;
+
+ for_each_rsnd_mod_array(i, pos, io, rsnd_ssi_array) {
+ int shift = (i * 4) + 20;
+
+ val = (val & ~(0xF << shift)) |
+ rsnd_mod_id(pos) << shift;
+ }
+
+ if (has_hdmi0)
+ rsnd_mod_write(mod, HDMI0_SEL, val);
+ if (has_hdmi1)
+ rsnd_mod_write(mod, HDMI1_SEL, val);
+ }
+
+ return 0;
+}
+
+static int rsnd_ssiu_start_gen2(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ int busif = rsnd_mod_id_sub(mod);
+
+ if (!rsnd_ssi_use_busif(io))
+ return 0;
+
+ rsnd_mod_bset(mod, SSI_CTRL, 1 << (busif * 4), 1 << (busif * 4));
+
+ if (rsnd_ssi_multi_secondaries_runtime(io))
+ rsnd_mod_write(mod, SSI_CONTROL, 0x1);
+
+ return 0;
+}
+
+static int rsnd_ssiu_stop_gen2(struct rsnd_mod *mod,
+ struct rsnd_dai_stream *io,
+ struct rsnd_priv *priv)
+{
+ struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod);
+ int busif = rsnd_mod_id_sub(mod);
+
+ if (!rsnd_ssi_use_busif(io))
+ return 0;
+
+ rsnd_mod_bset(mod, SSI_CTRL, 1 << (busif * 4), 0);
+
+ if (--ssiu->usrcnt)
+ return 0;
+
+ if (rsnd_ssi_multi_secondaries_runtime(io))
+ rsnd_mod_write(mod, SSI_CONTROL, 0);
+
+ return 0;
+}
+
+static int rsnd_ssiu_id(struct rsnd_mod *mod)
+{
+ struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod);
+
+ /* see rsnd_ssiu_probe() */
+ return ssiu->id;
+}
+
+static int rsnd_ssiu_id_sub(struct rsnd_mod *mod)
+{
+ struct rsnd_ssiu *ssiu = rsnd_mod_to_ssiu(mod);
+
+ /* see rsnd_ssiu_probe() */
+ return ssiu->id_sub;
+}
+
+static struct dma_chan *rsnd_ssiu_dma_req(struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+ int is_play = rsnd_io_is_play(io);
+ char *name;
+
+ /*
+ * It should use "rcar_sound,ssiu" on DT.
+ * But, we need to keep compatibility for old version.
+ *
+ * If it has "rcar_sound.ssiu", it will be used.
+ * If not, "rcar_sound.ssi" will be used.
+ * see
+ * rsnd_ssi_dma_req()
+ * rsnd_dma_of_path()
+ */
+
+ name = is_play ? "rx" : "tx";
+
+ return rsnd_dma_request_channel(rsnd_ssiu_of_node(priv),
+ SSIU_NAME, mod, name);
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void rsnd_ssiu_debug_info(struct seq_file *m,
+ struct rsnd_dai_stream *io,
+ struct rsnd_mod *mod)
+{
+ rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SSIU,
+ rsnd_mod_id(mod) * 0x80, 0x80);
+}
+#define DEBUG_INFO .debug_info = rsnd_ssiu_debug_info
+#else
+#define DEBUG_INFO
+#endif
+
+static struct rsnd_mod_ops rsnd_ssiu_ops_gen2 = {
+ .name = SSIU_NAME,
+ .dma_req = rsnd_ssiu_dma_req,
+ .init = rsnd_ssiu_init_gen2,
+ .quit = rsnd_ssiu_quit,
+ .start = rsnd_ssiu_start_gen2,
+ .stop = rsnd_ssiu_stop_gen2,
+ .get_status = rsnd_ssiu_get_status,
+ DEBUG_INFO
+};
+
+static struct rsnd_mod *rsnd_ssiu_mod_get(struct rsnd_priv *priv, int id)
+{
+ if (WARN_ON(id < 0 || id >= rsnd_ssiu_nr(priv)))
+ id = 0;
+
+ return rsnd_mod_get((struct rsnd_ssiu *)(priv->ssiu) + id);
+}
+
+static void rsnd_parse_connect_ssiu_compatible(struct rsnd_priv *priv,
+ struct rsnd_dai_stream *io)
+{
+ struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
+ struct rsnd_ssiu *ssiu;
+ int is_dma_mode;
+ int i;
+
+ if (!ssi_mod)
+ return;
+
+ is_dma_mode = rsnd_ssi_is_dma_mode(ssi_mod);
+
+ /* select BUSIF0 */
+ for_each_rsnd_ssiu(ssiu, priv, i) {
+ struct rsnd_mod *mod = rsnd_mod_get(ssiu);
+
+ if (is_dma_mode &&
+ (rsnd_mod_id(ssi_mod) == rsnd_mod_id(mod)) &&
+ (rsnd_mod_id_sub(mod) == 0)) {
+ rsnd_dai_connect(mod, io, mod->type);
+ return;
+ }
+ }
+}
+
+void rsnd_parse_connect_ssiu(struct rsnd_dai *rdai,
+ struct device_node *playback,
+ struct device_node *capture)
+{
+ struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *node = rsnd_ssiu_of_node(priv);
+ struct rsnd_dai_stream *io_p = &rdai->playback;
+ struct rsnd_dai_stream *io_c = &rdai->capture;
+
+ /* use rcar_sound,ssiu if exist */
+ if (node) {
+ struct device_node *np;
+ int i = 0;
+
+ for_each_child_of_node(node, np) {
+ struct rsnd_mod *mod;
+
+ i = rsnd_node_fixed_index(dev, np, SSIU_NAME, i);
+ if (i < 0) {
+ of_node_put(np);
+ break;
+ }
+
+ mod = rsnd_ssiu_mod_get(priv, i);
+
+ if (np == playback)
+ rsnd_dai_connect(mod, io_p, mod->type);
+ if (np == capture)
+ rsnd_dai_connect(mod, io_c, mod->type);
+ i++;
+ }
+
+ of_node_put(node);
+ }
+
+ /* Keep DT compatibility */
+ if (!rsnd_io_to_mod_ssiu(io_p))
+ rsnd_parse_connect_ssiu_compatible(priv, io_p);
+ if (!rsnd_io_to_mod_ssiu(io_c))
+ rsnd_parse_connect_ssiu_compatible(priv, io_c);
+}
+
+int rsnd_ssiu_probe(struct rsnd_priv *priv)
+{
+ struct device *dev = rsnd_priv_to_dev(priv);
+ struct device_node *node;
+ struct rsnd_ssiu *ssiu;
+ struct rsnd_mod_ops *ops;
+ const int *list = NULL;
+ int i, nr;
+
+ /*
+ * Keep DT compatibility.
+ * if it has "rcar_sound,ssiu", use it.
+ * if not, use "rcar_sound,ssi"
+ * see
+ * rsnd_ssiu_bufsif_to_id()
+ */
+ node = rsnd_ssiu_of_node(priv);
+ if (node)
+ nr = rsnd_node_count(priv, node, SSIU_NAME);
+ else
+ nr = priv->ssi_nr;
+
+ if (!nr)
+ return -EINVAL;
+
+ ssiu = devm_kcalloc(dev, nr, sizeof(*ssiu), GFP_KERNEL);
+ if (!ssiu)
+ return -ENOMEM;
+
+ priv->ssiu = ssiu;
+ priv->ssiu_nr = nr;
+
+ if (rsnd_is_gen1(priv))
+ ops = &rsnd_ssiu_ops_gen1;
+ else
+ ops = &rsnd_ssiu_ops_gen2;
+
+ /* Keep compatibility */
+ nr = 0;
+ if ((node) &&
+ (ops == &rsnd_ssiu_ops_gen2)) {
+ ops->id = rsnd_ssiu_id;
+ ops->id_sub = rsnd_ssiu_id_sub;
+
+ if (rsnd_is_gen2(priv)) {
+ list = gen2_id;
+ nr = ARRAY_SIZE(gen2_id);
+ } else if (rsnd_is_gen3(priv)) {
+ list = gen3_id;
+ nr = ARRAY_SIZE(gen3_id);
+ } else {
+ dev_err(dev, "unknown SSIU\n");
+ return -ENODEV;
+ }
+ }
+
+ for_each_rsnd_ssiu(ssiu, priv, i) {
+ int ret;
+
+ if (node) {
+ int j;
+
+ /*
+ * see
+ * rsnd_ssiu_get_id()
+ * rsnd_ssiu_get_id_sub()
+ */
+ for (j = 0; j < nr; j++) {
+ if (list[j] > i)
+ break;
+ ssiu->id = j;
+ ssiu->id_sub = i - list[ssiu->id];
+ }
+ } else {
+ ssiu->id = i;
+ }
+
+ ret = rsnd_mod_init(priv, rsnd_mod_get(ssiu),
+ ops, NULL, RSND_MOD_SSIU, i);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+void rsnd_ssiu_remove(struct rsnd_priv *priv)
+{
+ struct rsnd_ssiu *ssiu;
+ int i;
+
+ for_each_rsnd_ssiu(ssiu, priv, i) {
+ rsnd_mod_quit(rsnd_mod_get(ssiu));
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-30 06:30:15 +0000