diff options
Diffstat (limited to 'sound/soc/sh/rcar')
| -rw-r--r-- | sound/soc/sh/rcar/Makefile | 3 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/adg.c | 653 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/cmd.c | 181 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/core.c | 1655 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/ctu.c | 431 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/dma.c | 802 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/dvc.c | 383 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/gen.c | 421 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/mix.c | 341 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/rsnd.h | 818 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/src.c | 635 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/ssi.c | 1207 | ||||
| -rw-r--r-- | sound/soc/sh/rcar/ssiu.c | 289 |
13 files changed, 7819 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/Makefile b/sound/soc/sh/rcar/Makefile new file mode 100644 index 000000000..5d1ff8ef2 --- /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 +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..dc0826003 --- /dev/null +++ b/sound/soc/sh/rcar/adg.c @@ -0,0 +1,653 @@ +// 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 "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_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, ratio; + + if (!div) + return 0; + + for (i = 3; i >= 0; i--) { + 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: + 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 idx, sel, div, step; + 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++) { + idx = 0; + step = 2; + + 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; + + switch (id / 2) { + case 0: + rsnd_mod_bset(adg_mod, SRCIN_TIMSEL0, mask, in); + rsnd_mod_bset(adg_mod, SRCOUT_TIMSEL0, mask, out); + break; + case 1: + rsnd_mod_bset(adg_mod, SRCIN_TIMSEL1, mask, in); + rsnd_mod_bset(adg_mod, SRCOUT_TIMSEL1, mask, out); + break; + case 2: + rsnd_mod_bset(adg_mod, SRCIN_TIMSEL2, mask, in); + rsnd_mod_bset(adg_mod, SRCOUT_TIMSEL2, mask, out); + break; + case 3: + rsnd_mod_bset(adg_mod, SRCIN_TIMSEL3, mask, in); + rsnd_mod_bset(adg_mod, SRCOUT_TIMSEL3, mask, out); + break; + case 4: + rsnd_mod_bset(adg_mod, SRCIN_TIMSEL4, mask, in); + rsnd_mod_bset(adg_mod, SRCOUT_TIMSEL4, mask, out); + break; + } + + 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; + + switch (id / 4) { + case 0: + rsnd_mod_bset(adg_mod, AUDIO_CLK_SEL0, mask, val); + break; + case 1: + rsnd_mod_bset(adg_mod, AUDIO_CLK_SEL1, mask, val); + break; + case 2: + rsnd_mod_bset(adg_mod, AUDIO_CLK_SEL2, mask, val); + break; + } + + 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 device *dev = rsnd_priv_to_dev(priv); + struct clk *clk; + int i, ret; + + for_each_rsnd_clk(clk, adg, i) { + ret = 0; + if (enable) { + ret = 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(adg->clk[i]); + } else { + clk_disable_unprepare(clk); + } + + if (ret < 0) + dev_warn(dev, "can't use clk %d\n", i); + } +} + +static void rsnd_adg_get_clkin(struct rsnd_priv *priv, + struct rsnd_adg *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]); + adg->clk[i] = IS_ERR(clk) ? NULL : clk; + } +} + +static void rsnd_adg_get_clkout(struct rsnd_priv *priv, + struct rsnd_adg *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, use top %d\n", REQ_SIZE); + req_size = REQ_SIZE; + } + + 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(clk)) { + 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(clk)) + 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; +} + +#ifdef DEBUG +static void rsnd_adg_clk_dbg_info(struct rsnd_priv *priv, struct rsnd_adg *adg) +{ + struct device *dev = rsnd_priv_to_dev(priv); + struct clk *clk; + int i; + + for_each_rsnd_clk(clk, adg, i) + dev_dbg(dev, "%s : %p : %ld\n", + clk_name[i], clk, clk_get_rate(clk)); + + dev_dbg(dev, "BRGCKR = 0x%08x, BRRA/BRRB = 0x%x/0x%x\n", + adg->ckr, adg->rbga, adg->rbgb); + dev_dbg(dev, "BRGA (for 44100 base) = %d\n", adg->rbga_rate_for_441khz); + dev_dbg(dev, "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) + dev_dbg(dev, "clkout %d : %p : %ld\n", i, + clk, clk_get_rate(clk)); +} +#else +#define rsnd_adg_clk_dbg_info(priv, adg) +#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, NULL, 0, 0); + if (ret) + return ret; + + rsnd_adg_get_clkin(priv, adg); + rsnd_adg_get_clkout(priv, adg); + rsnd_adg_clk_dbg_info(priv, adg); + + priv->adg = adg; + + rsnd_adg_clk_enable(priv); + + 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; + struct rsnd_adg *adg = priv->adg; + struct clk *clk; + int i; + + for_each_rsnd_clkout(clk, adg, i) + if (adg->clkout[i]) + clk_unregister_fixed_rate(adg->clkout[i]); + + of_clk_del_provider(np); + + rsnd_adg_clk_disable(priv); +} diff --git a/sound/soc/sh/rcar/cmd.c b/sound/soc/sh/rcar/cmd.c new file mode 100644 index 000000000..cc191cd5f --- /dev/null +++ b/sound/soc/sh/rcar/cmd.c @@ -0,0 +1,181 @@ +// 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; + struct rsnd_mod *src; + struct rsnd_dai_stream *tio; + 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) { + tio = &rdai->playback; + 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; +} + +static struct rsnd_mod_ops rsnd_cmd_ops = { + .name = CMD_NAME, + .init = rsnd_cmd_init, + .start = rsnd_cmd_start, + .stop = rsnd_cmd_stop, +}; + +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, ret; + + /* 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) { + ret = rsnd_mod_init(priv, rsnd_mod_get(cmd), + &rsnd_cmd_ops, NULL, + rsnd_mod_get_status, 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..4e6ecdc83 --- /dev/null +++ b/sound/soc/sh/rcar/core.c @@ -0,0 +1,1655 @@ +// 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()... + * + */ + +/* + * you can enable below define if you don't need + * DAI status debug message when debugging + * see rsnd_dbg_dai_call() + * + * #define RSND_DEBUG_NO_DAI_CALL 1 + */ + +#include <linux/pm_runtime.h> +#include "rsnd.h" + +#define RSND_RATES SNDRV_PCM_RATE_8000_192000 +#define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_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 }, + {}, +}; +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[%d] is not your expected module\n", + rsnd_mod_name(mod), rsnd_mod_id(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); +} + +u32 *rsnd_mod_get_status(struct rsnd_dai_stream *io, + struct rsnd_mod *mod, + enum rsnd_mod_type type) +{ + return &mod->status; +} + +int rsnd_mod_init(struct rsnd_priv *priv, + struct rsnd_mod *mod, + struct rsnd_mod_ops *ops, + struct clk *clk, + u32* (*get_status)(struct rsnd_dai_stream *io, + struct rsnd_mod *mod, + enum rsnd_mod_type type), + 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; + mod->get_status = get_status; + + return ret; +} + +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_stream *io; + struct rsnd_dai *rdai; + int i; + + for_each_rsnd_dai(rdai, priv, i) { + 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 + return runtime->channels; +} + +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_ctu_converted_channel(ctu_mod); + + if (converted_chan) + return converted_chan; + } + + 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_ssi_multi(io)) + chan /= rsnd_rdai_ssi_lane_get(rdai); + + /* TDM Extend Mode needs 8ch */ + if (chan == 6) + chan = 8; + + return chan; +} + +int rsnd_runtime_is_ssi_multi(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_ssi_tdm(struct rsnd_dai_stream *io) +{ + return rsnd_runtime_channel_for_ssi(io) >= 6; +} + +/* + * 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 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) +{ + struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io); + struct rsnd_mod *target; + struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); + + /* + * *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; + } + + /* Non target mod or 24bit data needs normal DALIGN */ + if ((snd_pcm_format_width(runtime->format) != 16) || + (mod != target)) + return 0x76543210; + /* Target mod needs inverted DALIGN when 16bit */ + else + return 0x67452301; +} + +u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod) +{ + enum rsnd_mod_type playback_mods[] = { + RSND_MOD_SRC, + RSND_MOD_CMD, + RSND_MOD_SSIU, + }; + 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; + 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) == 16) + 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) +{ + struct rsnd_mod *mod; + enum rsnd_mod_type type; + int max = array ? array_size : RSND_MOD_MAX; + + for (; *iterator < max; (*iterator)++) { + type = (array) ? array[*iterator] : *iterator; + 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(u32 *status, + int shift, int add, int timing) +{ + u32 mask = 0xF << shift; + u8 val = (*status >> shift) & 0xF; + u8 next_val = (val + add) & 0xF; + int func_call = (val == timing); + + if (next_val == 0xF) /* underflow case */ + func_call = 0; + 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; \ + u32 *status = mod->get_status(io, mod, types[i]); \ + int func_call = rsnd_status_update(status, \ + __rsnd_mod_shift_##fn, \ + __rsnd_mod_add_##fn, \ + __rsnd_mod_call_##fn); \ + rsnd_dbg_dai_call(dev, "%s[%d]\t0x%08x %s\n", \ + rsnd_mod_name(mod), rsnd_mod_id(mod), *status, \ + (func_call && (mod)->ops->fn) ? #fn : ""); \ + if (func_call && (mod)->ops->fn) \ + tmp = (mod)->ops->fn(mod, io, param); \ + if (tmp && (tmp != -EPROBE_DEFER)) \ + dev_err(dev, "%s[%d] : %s error %d\n", \ + rsnd_mod_name(mod), rsnd_mod_id(mod), \ + #fn, tmp); \ + 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[%d] is connected to io (%s)\n", + rsnd_mod_name(mod), rsnd_mod_id(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; +} + +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 = substream->private_data; + + return rtd->cpu_dai; +} + +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 master/slave audio interface */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + rdai->clk_master = 0; + break; + case SND_SOC_DAIFMT_CBS_CFS: + rdai->clk_master = 1; /* codec is slave, 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: + 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; + } + + /* 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 (slots) { + case 2: + case 6: + case 8: + /* TDM Extend Mode */ + rsnd_rdai_channels_set(rdai, slots); + rsnd_rdai_ssi_lane_set(rdai, 1); + 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_priv *priv, + 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(priv, + 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(priv, + 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, + int is_play) +{ + 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 snd_soc_dai *dai = rule->private; + struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); + struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); + struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture; + + /* + * 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(priv, rsnd_soc_hw_rate_list, + ARRAY_SIZE(rsnd_soc_hw_rate_list), + &ic, ir); +} + +static int rsnd_soc_hw_rule_rate_playback(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + return __rsnd_soc_hw_rule_rate(params, rule, 1); +} + +static int rsnd_soc_hw_rule_rate_capture(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + return __rsnd_soc_hw_rule_rate(params, rule, 0); +} + +static int __rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule, + int is_play) +{ + 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 snd_soc_dai *dai = rule->private; + struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); + struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); + struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture; + + /* + * 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(priv, rsnd_soc_hw_channels_list, + ARRAY_SIZE(rsnd_soc_hw_channels_list), + ir, &ic); +} + +static int rsnd_soc_hw_rule_channels_playback(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + return __rsnd_soc_hw_rule_channels(params, rule, 1); +} + +static int rsnd_soc_hw_rule_channels_capture(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + return __rsnd_soc_hw_rule_channels(params, rule, 0); +} + +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_priv *priv = rsnd_rdai_to_priv(rdai); + 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 ret; + 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, + is_play ? rsnd_soc_hw_rule_rate_playback : + rsnd_soc_hw_rule_rate_capture, + dai, + SNDRV_PCM_HW_PARAM_CHANNELS, -1); + snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + is_play ? rsnd_soc_hw_rule_channels_playback : + rsnd_soc_hw_rule_channels_capture, + dai, + SNDRV_PCM_HW_PARAM_RATE, -1); + } + + /* + * call rsnd_dai_call without spinlock + */ + ret = rsnd_dai_call(nolock_start, io, priv); + if (ret < 0) + rsnd_dai_call(nolock_stop, io, priv); + + return ret; +} + +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(nolock_stop, 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 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, +}; + +void rsnd_parse_connect_common(struct rsnd_dai *rdai, + 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_node *np; + struct rsnd_mod *mod; + int i; + + if (!node) + return; + + i = 0; + for_each_child_of_node(node, np) { + 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); +} + +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; +} + +static void __rsnd_dai_probe(struct rsnd_priv *priv, + struct device_node *dai_np, + int dai_i) +{ + struct device_node *playback, *capture; + 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; + + snprintf(rdai->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 = rdai->playback.name; + + snprintf(rdai->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 = rdai->capture.name; + + rdai->playback.rdai = rdai; + rdai->capture.rdai = rdai; + rsnd_rdai_channels_set(rdai, 2); /* default 2ch */ + rsnd_rdai_ssi_lane_set(rdai, 1); /* default 1lane */ + + for (io_i = 0;; io_i++) { + playback = of_parse_phandle(dai_np, "playback", io_i); + capture = of_parse_phandle(dai_np, "capture", io_i); + + if (!playback && !capture) + break; + + rsnd_parse_connect_ssi(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_rates if pin sharing */ + drv->symmetric_rates = 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); + rsnd_ssi_parse_hdmi_connection(priv, dai_np, dai_i); + dai_i++; + } + } else { + for_each_child_of_node(dai_node, dai_np) + __rsnd_dai_probe(priv, dai_np, dai_i++); + } + + return 0; +} + +/* + * pcm ops + */ +static int rsnd_hw_params(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); + int ret; + + ret = rsnd_dai_call(hw_params, io, substream, hw_params); + if (ret) + return ret; + + return snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(hw_params)); +} + +static snd_pcm_uframes_t rsnd_pointer(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; +} + +static const struct snd_pcm_ops rsnd_pcm_ops = { + .ioctl = snd_pcm_lib_ioctl, + .hw_params = rsnd_hw_params, + .hw_free = snd_pcm_lib_free_pages, + .pointer = rsnd_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; + strlcpy(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); + + return !!runtime; +} + +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 + */ + +#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; + int err; + + /* + * 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) { + err = snd_pcm_lib_preallocate_pages(substream, + SNDRV_DMA_TYPE_DEV, + dev, + PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); + if (err < 0) + return err; + } + + return 0; +} + +static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *dai = rtd->cpu_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 const struct snd_soc_component_driver rsnd_soc_component = { + .ops = &rsnd_pcm_ops, + .pcm_new = rsnd_pcm_new, + .name = "rsnd", +}; + +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 ret = 0, i; + + snd_soc_disconnect_sync(&pdev->dev); + + pm_runtime_disable(&pdev->dev); + + for_each_rsnd_dai(rdai, priv, i) { + ret |= rsnd_dai_call(remove, &rdai->playback, priv); + ret |= rsnd_dai_call(remove, &rdai->capture, priv); + } + + for (i = 0; i < ARRAY_SIZE(remove_func); i++) + remove_func[i](priv); + + return ret; +} + +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..6a55aa753 --- /dev/null +++ b/sound/soc/sh/rcar/ctu.c @@ -0,0 +1,431 @@ +// 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 sv0; + struct rsnd_kctrl_cfg_m sv1; + struct rsnd_kctrl_cfg_m sv2; + struct rsnd_kctrl_cfg_m sv3; + 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); +} + +int rsnd_ctu_converted_channel(struct rsnd_mod *mod) +{ + struct rsnd_ctu *ctu = rsnd_mod_to_ctu(mod); + + return ctu->channels; +} + +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) / 4); +} + +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; + + 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); + + if (scmdr > 0) { + rsnd_mod_write(mod, CTU_SV00R, rsnd_kctrl_valm(ctu->sv0, 0)); + rsnd_mod_write(mod, CTU_SV01R, rsnd_kctrl_valm(ctu->sv0, 1)); + rsnd_mod_write(mod, CTU_SV02R, rsnd_kctrl_valm(ctu->sv0, 2)); + rsnd_mod_write(mod, CTU_SV03R, rsnd_kctrl_valm(ctu->sv0, 3)); + rsnd_mod_write(mod, CTU_SV04R, rsnd_kctrl_valm(ctu->sv0, 4)); + rsnd_mod_write(mod, CTU_SV05R, rsnd_kctrl_valm(ctu->sv0, 5)); + rsnd_mod_write(mod, CTU_SV06R, rsnd_kctrl_valm(ctu->sv0, 6)); + rsnd_mod_write(mod, CTU_SV07R, rsnd_kctrl_valm(ctu->sv0, 7)); + } + if (scmdr > 1) { + rsnd_mod_write(mod, CTU_SV10R, rsnd_kctrl_valm(ctu->sv1, 0)); + rsnd_mod_write(mod, CTU_SV11R, rsnd_kctrl_valm(ctu->sv1, 1)); + rsnd_mod_write(mod, CTU_SV12R, rsnd_kctrl_valm(ctu->sv1, 2)); + rsnd_mod_write(mod, CTU_SV13R, rsnd_kctrl_valm(ctu->sv1, 3)); + rsnd_mod_write(mod, CTU_SV14R, rsnd_kctrl_valm(ctu->sv1, 4)); + rsnd_mod_write(mod, CTU_SV15R, rsnd_kctrl_valm(ctu->sv1, 5)); + rsnd_mod_write(mod, CTU_SV16R, rsnd_kctrl_valm(ctu->sv1, 6)); + rsnd_mod_write(mod, CTU_SV17R, rsnd_kctrl_valm(ctu->sv1, 7)); + } + if (scmdr > 2) { + rsnd_mod_write(mod, CTU_SV20R, rsnd_kctrl_valm(ctu->sv2, 0)); + rsnd_mod_write(mod, CTU_SV21R, rsnd_kctrl_valm(ctu->sv2, 1)); + rsnd_mod_write(mod, CTU_SV22R, rsnd_kctrl_valm(ctu->sv2, 2)); + rsnd_mod_write(mod, CTU_SV23R, rsnd_kctrl_valm(ctu->sv2, 3)); + rsnd_mod_write(mod, CTU_SV24R, rsnd_kctrl_valm(ctu->sv2, 4)); + rsnd_mod_write(mod, CTU_SV25R, rsnd_kctrl_valm(ctu->sv2, 5)); + rsnd_mod_write(mod, CTU_SV26R, rsnd_kctrl_valm(ctu->sv2, 6)); + rsnd_mod_write(mod, CTU_SV27R, rsnd_kctrl_valm(ctu->sv2, 7)); + } + if (scmdr > 3) { + rsnd_mod_write(mod, CTU_SV30R, rsnd_kctrl_valm(ctu->sv3, 0)); + rsnd_mod_write(mod, CTU_SV31R, rsnd_kctrl_valm(ctu->sv3, 1)); + rsnd_mod_write(mod, CTU_SV32R, rsnd_kctrl_valm(ctu->sv3, 2)); + rsnd_mod_write(mod, CTU_SV33R, rsnd_kctrl_valm(ctu->sv3, 3)); + rsnd_mod_write(mod, CTU_SV34R, rsnd_kctrl_valm(ctu->sv3, 4)); + rsnd_mod_write(mod, CTU_SV35R, rsnd_kctrl_valm(ctu->sv3, 5)); + rsnd_mod_write(mod, CTU_SV36R, rsnd_kctrl_valm(ctu->sv3, 6)); + rsnd_mod_write(mod, CTU_SV37R, rsnd_kctrl_valm(ctu->sv3, 7)); + } + + 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->sv0, i) = 0; + rsnd_kctrl_valm(ctu->sv1, i) = 0; + rsnd_kctrl_valm(ctu->sv2, i) = 0; + rsnd_kctrl_valm(ctu->sv3, 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) +{ + rsnd_mod_power_on(mod); + + 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_hw_params(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *fe_params) +{ + struct rsnd_ctu *ctu = rsnd_mod_to_ctu(mod); + struct snd_soc_pcm_runtime *fe = substream->private_data; + + /* + * CTU assumes that it is used under DPCM if user want to use + * channel transfer. Then, CTU 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() + */ + ctu->channels = 0; + if (fe->dai_link->dynamic) { + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + struct device *dev = rsnd_priv_to_dev(priv); + struct snd_soc_dpcm *dpcm; + struct snd_pcm_hw_params *be_params; + int stream = substream->stream; + + list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + be_params = &dpcm->hw_params; + if (params_channels(fe_params) != params_channels(be_params)) + ctu->channels = params_channels(be_params); + } + + dev_dbg(dev, "CTU convert channels %d\n", ctu->channels); + } + + 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); + + /* ROW0 */ + ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV0", + rsnd_kctrl_accept_anytime, + NULL, + &ctu->sv0, 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->sv1, 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->sv2, 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->sv3, 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 struct rsnd_mod_ops rsnd_ctu_ops = { + .name = CTU_NAME, + .probe = rsnd_ctu_probe_, + .init = rsnd_ctu_init, + .quit = rsnd_ctu_quit, + .hw_params = rsnd_ctu_hw_params, + .pcm_new = rsnd_ctu_pcm_new, +}; + +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_get_status, 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/dma.c b/sound/soc/sh/rcar/dma.c new file mode 100644 index 000000000..d65ea7bc4 --- /dev/null +++ b/sound/soc/sh/rcar/dma.c @@ -0,0 +1,802 @@ +// 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 *base; + 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_all(dmaen->chan); + + return 0; +} + +static int rsnd_dmaen_nolock_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); + + /* + * DMAEngine release uses mutex lock. + * Thus, it shouldn't be called under spinlock. + * Let's call it under nolock_start + */ + if (dmaen->chan) + dma_release_channel(dmaen->chan); + + dmaen->chan = NULL; + + return 0; +} + +static int rsnd_dmaen_nolock_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 device *dev = rsnd_priv_to_dev(priv); + + if (dmaen->chan) { + dev_err(dev, "it already has dma channel\n"); + return -EIO; + } + + /* + * DMAEngine request uses mutex lock. + * Thus, it shouldn't be called under spinlock. + * Let's call it under nolock_start + */ + 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 = {}; + int is_play = rsnd_io_is_play(io); + int ret; + + 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 = DMA_SLAVE_BUSWIDTH_4_BYTES; + cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + + dev_dbg(dev, "%s[%d] %pad -> %pad\n", + rsnd_mod_name(mod), rsnd_mod_id(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, + struct rsnd_mod *mod, char *name) +{ + struct dma_chan *chan = NULL; + struct device_node *np; + int i = 0; + + for_each_child_of_node(of_node, np) { + if (i == rsnd_mod_id(mod) && (!chan)) + chan = of_dma_request_slave_channel(np, name); + 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", + .nolock_start = rsnd_dmaen_nolock_start, + .nolock_stop = rsnd_dmaen_nolock_stop, + .start = rsnd_dmaen_start, + .stop = rsnd_dmaen_stop, + .pointer= rsnd_dmaen_pointer, +}; + +/* + * Audio DMAC peri peri + */ +static const u8 gen2_id_table_ssiu[] = { + 0x00, /* SSI00 */ + 0x04, /* SSI10 */ + 0x08, /* SSI20 */ + 0x0c, /* SSI3 */ + 0x0d, /* SSI4 */ + 0x0e, /* SSI5 */ + 0x0f, /* SSI6 */ + 0x10, /* SSI7 */ + 0x11, /* SSI8 */ + 0x12, /* SSI90 */ +}; +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 *src = rsnd_io_to_mod_src(io); + struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io); + const u8 *entry = NULL; + int id = rsnd_mod_id(mod); + int size = 0; + + if (mod == ssi) { + entry = gen2_id_table_ssiu; + size = ARRAY_SIZE(gen2_id_table_ssiu); + } else if (mod == src) { + entry = gen2_id_table_scu; + size = ARRAY_SIZE(gen2_id_table_scu); + } else if (mod == dvc) { + entry = gen2_id_table_cmd; + size = ARRAY_SIZE(gen2_id_table_cmd); + } + + if ((!entry) || (size <= id)) { + struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io)); + + dev_err(dev, "unknown connection (%s[%d])\n", + rsnd_mod_name(mod), rsnd_mod_id(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->base + 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 %p : %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; +} + +static struct rsnd_mod_ops rsnd_dmapp_ops = { + .name = "audmac-pp", + .start = rsnd_dmapp_start, + .stop = rsnd_dmapp_stop, + .quit = rsnd_dmapp_stop, +}; + +/* + * 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) (addr ##_reg - 0x00441000 + (0x1000 * i)) +#define RDMA_SSIU_O_N(addr, i) (addr ##_reg - 0x00441000 + (0x1000 * i)) + +#define RDMA_SSIU_I_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i)) +#define RDMA_SSIU_O_P(addr, i) (addr ##_reg - 0x00141000 + (0x1000 * i)) + +#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); + 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); + 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), 0 }, + { RDMA_SSIU_O_P(ssi, id), 0 } }, + /* Playback */ + {{ 0, RDMA_SSI_I_N(ssi, id) }, + { 0, RDMA_SSIU_I_P(ssi, id) }, + { 0, RDMA_SSIU_I_P(ssi, id) } } + }, + /* SSIU */ + /* Capture */ + {{{ RDMA_SSIU_O_N(ssi, id), 0 }, + { RDMA_SSIU_O_P(ssi, id), 0 }, + { RDMA_SSIU_O_P(ssi, id), 0 } }, + /* Playback */ + {{ 0, RDMA_SSIU_I_N(ssi, id) }, + { 0, RDMA_SSIU_I_P(ssi, id) }, + { 0, RDMA_SSIU_I_P(ssi, id) } } }, + }; + + /* 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 = rsnd_io_to_mod_ssi(io); + 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; + + 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[%d])\n", + rsnd_mod_name(this), rsnd_mod_id(this)); + for (i = 0; i <= idx; i++) { + dev_dbg(dev, " %s[%d]%s\n", + rsnd_mod_name(mod[i] ? mod[i] : &mem), + rsnd_mod_id (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, + rsnd_mod_get_status, type, dma_id); + if (ret < 0) + return ret; + + dev_dbg(dev, "%s[%d] %s[%d] -> %s[%d]\n", + rsnd_mod_name(*dma_mod), rsnd_mod_id(*dma_mod), + rsnd_mod_name(mod_from ? mod_from : &mem), + rsnd_mod_id (mod_from ? mod_from : &mem), + rsnd_mod_name(mod_to ? mod_to : &mem), + rsnd_mod_id (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->base = devm_ioremap_resource(dev, res); + if (IS_ERR(dmac->base)) + return PTR_ERR(dmac->base); + + priv->dma = dmac; + + /* dummy mem mod for debug */ + return rsnd_mod_init(NULL, &mem, &mem_ops, NULL, 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..024ece46b --- /dev/null +++ b/sound/soc/sh/rcar/dvc.c @@ -0,0 +1,383 @@ +// 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 */ + rsnd_mod_write(mod, DVC_VOL0R, val[0]); + rsnd_mod_write(mod, DVC_VOL1R, val[1]); + rsnd_mod_write(mod, DVC_VOL2R, val[2]); + rsnd_mod_write(mod, DVC_VOL3R, val[3]); + rsnd_mod_write(mod, DVC_VOL4R, val[4]); + rsnd_mod_write(mod, DVC_VOL5R, val[5]); + rsnd_mod_write(mod, DVC_VOL6R, val[6]); + rsnd_mod_write(mod, DVC_VOL7R, val[7]); +} + +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) +{ + rsnd_mod_power_on(mod); + + 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), + mod, "tx"); +} + +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, +}; + +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_get_status, 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..0230301fe --- /dev/null +++ b/sound/soc/sh/rcar/gen.c @@ -0,0 +1,421 @@ +// 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[RSND_REG_MAX]; + const char *reg_name[RSND_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(RSND_REG_##id, offset, 0, #id) + +/* multi address mapping */ +#define RSND_GEN_M_REG(id, offset, _id_offset) \ + RSND_REG_SET(RSND_REG_##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; +} + +u32 rsnd_read(struct rsnd_priv *priv, + struct rsnd_mod *mod, enum rsnd_reg reg) +{ + 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(mod), &val); + + dev_dbg(dev, "r %s[%d] - %-18s (%4d) : %08x\n", + rsnd_mod_name(mod), rsnd_mod_id(mod), + rsnd_reg_name(gen, reg), reg, val); + + return val; +} + +void rsnd_write(struct rsnd_priv *priv, + struct rsnd_mod *mod, + enum rsnd_reg reg, u32 data) +{ + 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(mod), data); + + dev_dbg(dev, "w %s[%d] - %-18s (%4d) : %08x\n", + rsnd_mod_name(mod), rsnd_mod_id(mod), + rsnd_reg_name(gen, reg), reg, data); +} + +void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod, + enum rsnd_reg reg, u32 mask, u32 data) +{ + 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(mod), mask, data); + + dev_dbg(dev, "b %s[%d] - %-18s (%4d) : %08x/%08x\n", + rsnd_mod_name(mod), rsnd_mod_id(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]; +} + +#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(®c, 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, ®c); + 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(HDMI0_SEL, 0x9e0), + RSND_GEN_S_REG(HDMI1_SEL, 0x9e4), + + /* FIXME: it needs SSI_MODE2/3 in the future */ + RSND_GEN_M_REG(SSI_BUSIF_MODE, 0x0, 0x80), + RSND_GEN_M_REG(SSI_BUSIF_ADINR, 0x4, 0x80), + RSND_GEN_M_REG(SSI_BUSIF_DALIGN,0x8, 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), + }; + + 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..8e3b57eaa --- /dev/null +++ b/sound/soc/sh/rcar/mix.c @@ -0,0 +1,341 @@ +// 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) +{ + rsnd_mod_power_on(mod); + + 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; +} + +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, +}; + +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_get_status, 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..f64c7058b --- /dev/null +++ b/sound/soc/sh/rcar/rsnd.h @@ -0,0 +1,818 @@ +// 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) */ + RSND_REG_SRC_I_BUSIF_MODE, + RSND_REG_SRC_O_BUSIF_MODE, + RSND_REG_SRC_ROUTE_MODE0, + RSND_REG_SRC_SWRSR, + RSND_REG_SRC_SRCIR, + RSND_REG_SRC_ADINR, + RSND_REG_SRC_IFSCR, + RSND_REG_SRC_IFSVR, + RSND_REG_SRC_SRCCR, + RSND_REG_SRC_CTRL, + RSND_REG_SRC_BSDSR, + RSND_REG_SRC_BSISR, + RSND_REG_SRC_INT_ENABLE0, + RSND_REG_SRC_BUSIF_DALIGN, + RSND_REG_SRCIN_TIMSEL0, + RSND_REG_SRCIN_TIMSEL1, + RSND_REG_SRCIN_TIMSEL2, + RSND_REG_SRCIN_TIMSEL3, + RSND_REG_SRCIN_TIMSEL4, + RSND_REG_SRCOUT_TIMSEL0, + RSND_REG_SRCOUT_TIMSEL1, + RSND_REG_SRCOUT_TIMSEL2, + RSND_REG_SRCOUT_TIMSEL3, + RSND_REG_SRCOUT_TIMSEL4, + RSND_REG_SCU_SYS_STATUS0, + RSND_REG_SCU_SYS_STATUS1, + RSND_REG_SCU_SYS_INT_EN0, + RSND_REG_SCU_SYS_INT_EN1, + RSND_REG_CMD_CTRL, + RSND_REG_CMD_BUSIF_MODE, + RSND_REG_CMD_BUSIF_DALIGN, + RSND_REG_CMD_ROUTE_SLCT, + RSND_REG_CMDOUT_TIMSEL, + RSND_REG_CTU_SWRSR, + RSND_REG_CTU_CTUIR, + RSND_REG_CTU_ADINR, + RSND_REG_CTU_CPMDR, + RSND_REG_CTU_SCMDR, + RSND_REG_CTU_SV00R, + RSND_REG_CTU_SV01R, + RSND_REG_CTU_SV02R, + RSND_REG_CTU_SV03R, + RSND_REG_CTU_SV04R, + RSND_REG_CTU_SV05R, + RSND_REG_CTU_SV06R, + RSND_REG_CTU_SV07R, + RSND_REG_CTU_SV10R, + RSND_REG_CTU_SV11R, + RSND_REG_CTU_SV12R, + RSND_REG_CTU_SV13R, + RSND_REG_CTU_SV14R, + RSND_REG_CTU_SV15R, + RSND_REG_CTU_SV16R, + RSND_REG_CTU_SV17R, + RSND_REG_CTU_SV20R, + RSND_REG_CTU_SV21R, + RSND_REG_CTU_SV22R, + RSND_REG_CTU_SV23R, + RSND_REG_CTU_SV24R, + RSND_REG_CTU_SV25R, + RSND_REG_CTU_SV26R, + RSND_REG_CTU_SV27R, + RSND_REG_CTU_SV30R, + RSND_REG_CTU_SV31R, + RSND_REG_CTU_SV32R, + RSND_REG_CTU_SV33R, + RSND_REG_CTU_SV34R, + RSND_REG_CTU_SV35R, + RSND_REG_CTU_SV36R, + RSND_REG_CTU_SV37R, + RSND_REG_MIX_SWRSR, + RSND_REG_MIX_MIXIR, + RSND_REG_MIX_ADINR, + RSND_REG_MIX_MIXMR, + RSND_REG_MIX_MVPDR, + RSND_REG_MIX_MDBAR, + RSND_REG_MIX_MDBBR, + RSND_REG_MIX_MDBCR, + RSND_REG_MIX_MDBDR, + RSND_REG_MIX_MDBER, + RSND_REG_DVC_SWRSR, + RSND_REG_DVC_DVUIR, + RSND_REG_DVC_ADINR, + RSND_REG_DVC_DVUCR, + RSND_REG_DVC_ZCMCR, + RSND_REG_DVC_VOL0R, + RSND_REG_DVC_VOL1R, + RSND_REG_DVC_VOL2R, + RSND_REG_DVC_VOL3R, + RSND_REG_DVC_VOL4R, + RSND_REG_DVC_VOL5R, + RSND_REG_DVC_VOL6R, + RSND_REG_DVC_VOL7R, + RSND_REG_DVC_DVUER, + RSND_REG_DVC_VRCTR, + RSND_REG_DVC_VRPDR, + RSND_REG_DVC_VRDBR, + + /* ADG */ + RSND_REG_BRRA, + RSND_REG_BRRB, + RSND_REG_BRGCKR, + RSND_REG_DIV_EN, + RSND_REG_AUDIO_CLK_SEL0, + RSND_REG_AUDIO_CLK_SEL1, + RSND_REG_AUDIO_CLK_SEL2, + + /* SSIU */ + RSND_REG_SSI_MODE, + RSND_REG_SSI_MODE0, + RSND_REG_SSI_MODE1, + RSND_REG_SSI_MODE2, + RSND_REG_SSI_CONTROL, + RSND_REG_SSI_CTRL, + RSND_REG_SSI_BUSIF_MODE, + RSND_REG_SSI_BUSIF_ADINR, + RSND_REG_SSI_BUSIF_DALIGN, + RSND_REG_SSI_INT_ENABLE, + RSND_REG_SSI_SYS_STATUS0, + RSND_REG_SSI_SYS_STATUS1, + RSND_REG_SSI_SYS_STATUS2, + RSND_REG_SSI_SYS_STATUS3, + RSND_REG_SSI_SYS_STATUS4, + RSND_REG_SSI_SYS_STATUS5, + RSND_REG_SSI_SYS_STATUS6, + RSND_REG_SSI_SYS_STATUS7, + RSND_REG_HDMI0_SEL, + RSND_REG_HDMI1_SEL, + + /* SSI */ + RSND_REG_SSICR, + RSND_REG_SSISR, + RSND_REG_SSITDR, + RSND_REG_SSIRDR, + RSND_REG_SSIWSR, + + RSND_REG_MAX, +}; + +struct rsnd_priv; +struct rsnd_mod; +struct rsnd_dai; +struct rsnd_dai_stream; + +/* + * R-Car basic functions + */ +#define rsnd_mod_read(m, r) \ + rsnd_read(rsnd_mod_to_priv(m), m, RSND_REG_##r) +#define rsnd_mod_write(m, r, d) \ + rsnd_write(rsnd_mod_to_priv(m), m, RSND_REG_##r, d) +#define rsnd_mod_bset(m, r, s, d) \ + rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d) + +u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg); +void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod, + enum rsnd_reg reg, u32 data); +void rsnd_force_write(struct rsnd_priv *priv, struct rsnd_mod *mod, + enum rsnd_reg reg, u32 data); +void rsnd_bset(struct rsnd_priv *priv, 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, + struct rsnd_mod *mod, char *name); + +/* + * 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 (*nolock_start)(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv); + int (*nolock_stop)(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); +}; + +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 *(*get_status)(struct rsnd_dai_stream *io, + struct rsnd_mod *mod, + enum rsnd_mod_type type); + u32 status; +}; +/* + * status + * + * 0xH0000CBA + * + * A 0: nolock_start 1: nolock_stop + * B 0: init 1: quit + * C 0: start 1: stop + * + * H is always called (see __rsnd_mod_call) + * H 0: probe 1: remove + * H 0: pcm_new + * H 0: fallback + * H 0: hw_params + * H 0: pointer + * H 0: prepare + */ +#define __rsnd_mod_shift_nolock_start 0 +#define __rsnd_mod_shift_nolock_stop 0 +#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_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_hw_params 28 /* always called */ +#define __rsnd_mod_shift_pointer 28 /* always called */ +#define __rsnd_mod_shift_prepare 28 /* always called */ + +#define __rsnd_mod_add_probe 0 +#define __rsnd_mod_add_remove 0 +#define __rsnd_mod_add_nolock_start 1 +#define __rsnd_mod_add_nolock_stop -1 +#define __rsnd_mod_add_init 1 +#define __rsnd_mod_add_quit -1 +#define __rsnd_mod_add_start 1 +#define __rsnd_mod_add_stop -1 +#define __rsnd_mod_add_irq 0 +#define __rsnd_mod_add_pcm_new 0 +#define __rsnd_mod_add_fallback 0 +#define __rsnd_mod_add_hw_params 0 +#define __rsnd_mod_add_pointer 0 +#define __rsnd_mod_add_prepare 0 + +#define __rsnd_mod_call_probe 0 +#define __rsnd_mod_call_remove 0 +#define __rsnd_mod_call_init 0 +#define __rsnd_mod_call_quit 1 +#define __rsnd_mod_call_start 0 +#define __rsnd_mod_call_stop 1 +#define __rsnd_mod_call_irq 0 +#define __rsnd_mod_call_pcm_new 0 +#define __rsnd_mod_call_fallback 0 +#define __rsnd_mod_call_hw_params 0 +#define __rsnd_mod_call_pointer 0 +#define __rsnd_mod_call_nolock_start 0 +#define __rsnd_mod_call_nolock_stop 1 +#define __rsnd_mod_call_prepare 0 + +#define rsnd_mod_to_priv(mod) ((mod)->priv) +#define rsnd_mod_name(mod) ((mod)->ops->name) +#define rsnd_mod_id(mod) ((mod)->id) +#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, + u32* (*get_status)(struct rsnd_dai_stream *io, + struct rsnd_mod *mod, + enum rsnd_mod_type type), + 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_dai_stream *io, + struct rsnd_mod *mod, + enum rsnd_mod_type type); +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, + struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id), + struct device_node *node, + struct device_node *playback, + struct device_node *capture); + +#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_ssi_multi(struct rsnd_dai_stream *io); +int rsnd_runtime_is_ssi_tdm(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_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 parent_ssi_status; +}; +#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) +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 */ + + 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); + +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); + +/* + * R-Car ADG + */ +int rsnd_adg_clk_query(struct rsnd_priv *priv, unsigned int rate); +int rsnd_adg_ssi_clk_stop(struct rsnd_mod *mod); +int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *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 *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); + +/* + * 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) + + /* + * 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_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_is_dma_mode(struct rsnd_mod *mod); +int rsnd_ssi_use_busif(struct rsnd_dai_stream *io); +u32 rsnd_ssi_multi_slaves_runtime(struct rsnd_dai_stream *io); + +#define RSND_SSI_HDMI_PORT0 0xf0 +#define RSND_SSI_HDMI_PORT1 0xf1 +int rsnd_ssi_hdmi_port(struct rsnd_dai_stream *io); +void rsnd_ssi_parse_hdmi_connection(struct rsnd_priv *priv, + struct device_node *endpoint, + int dai_i); + +#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_priv *priv, + 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); + +/* + * 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, 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); +int rsnd_ctu_converted_channel(struct rsnd_mod *mod); +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, 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, 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, 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_dbg_irq_status(dev, param...) \ + if (!IS_BUILTIN(RSND_DEBUG_NO_IRQ_STATUS)) \ + dev_dbg(dev, param) + +/* + * 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) + +#endif diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c new file mode 100644 index 000000000..beccfbac7 --- /dev/null +++ b/sound/soc/sh/rcar/src.c @@ -0,0 +1,635 @@ +// 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 enable below define if you don't need + * SSI interrupt status debug message when debugging + * see rsnd_dbg_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 */ + u32 convert_rate; /* sampling rate 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), + 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 src->convert_rate; + + convert_rate = src->sync.val; + + if (!convert_rate) + convert_rate = src->convert_rate; + + 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 int rsnd_src_hw_params(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *fe_params) +{ + struct rsnd_src *src = rsnd_mod_to_src(mod); + struct snd_soc_pcm_runtime *fe = substream->private_data; + + /* + * SRC assumes that it is used under DPCM if user want to use + * sampling rate convert. Then, SRC 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() + */ + src->convert_rate = 0; + if (fe->dai_link->dynamic) { + int stream = substream->stream; + struct snd_soc_dpcm *dpcm; + struct snd_pcm_hw_params *be_params; + + list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { + be_params = &dpcm->hw_params; + + if (params_rate(fe_params) != params_rate(be_params)) + src->convert_rate = params_rate(be_params); + } + } + + return 0; +} + +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 bsdsr, bsisr; + u32 i_busif, o_busif, tmp; + uint ratio; + + if (!runtime) + return; + + fin = rsnd_src_get_in_rate(priv, io); + fout = rsnd_src_get_out_rate(priv, 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) | + rsnd_runtime_channel_original(io); + + /* + * 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 + */ + switch (rsnd_mod_id(mod)) { + case 5: + case 6: + case 7: + case 8: + bsdsr = 0x02400000; /* 6 - 1/6 */ + bsisr = 0x00100060; /* 6 - 1/6 */ + break; + default: + bsdsr = 0x01800000; /* 6 - 1/6 */ + bsisr = 0x00100060 ;/* 6 - 1/6 */ + break; + } + + /* 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); + rsnd_mod_write(mod, SRC_BSISR, bsisr); + 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); +} + +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_dbg_irq_status(dev, "%s[%d] err status : 0x%08x, 0x%08x\n", + rsnd_mod_name(mod), rsnd_mod_id(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); + + /* reset sync convert_rate */ + src->sync.val = 0; + + rsnd_mod_power_on(mod); + + 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; +} + +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, + .hw_params = rsnd_src_hw_params, + .pcm_new = rsnd_src_pcm_new, +}; + +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 = of_get_child_count(node); + 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; + + 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_get_status, + 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..a6cf2ac22 --- /dev/null +++ b/sound/soc/sh/rcar/ssi.c @@ -0,0 +1,1207 @@ +// 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_dbg_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 (1 << 31) /* Fixed */ +#define DMEN (1 << 28) /* DMA Enable */ +#define UIEN (1 << 27) /* Underflow Interrupt Enable */ +#define OIEN (1 << 26) /* Overflow Interrupt Enable */ +#define IIEN (1 << 25) /* Idle Mode Interrupt Enable */ +#define DIEN (1 << 24) /* Data Interrupt Enable */ +#define CHNL_4 (1 << 22) /* Channels */ +#define CHNL_6 (2 << 22) /* Channels */ +#define CHNL_8 (3 << 22) /* Channels */ +#define DWL_MASK (7 << 19) /* Data Word Length mask */ +#define DWL_8 (0 << 19) /* Data Word Length */ +#define DWL_16 (1 << 19) /* Data Word Length */ +#define DWL_18 (2 << 19) /* Data Word Length */ +#define DWL_20 (3 << 19) /* Data Word Length */ +#define DWL_22 (4 << 19) /* Data Word Length */ +#define DWL_24 (5 << 19) /* Data Word Length */ +#define DWL_32 (6 << 19) /* Data 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_HDMI0 (1 << 2) /* for HDMI0 */ +#define RSND_SSI_HDMI1 (1 << 3) /* for HDMI1 */ +#define RSND_SSI_PROBED (1 << 4) + +#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_slave(mod, io) \ + (rsnd_ssi_multi_slaves(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_hdmi_port(struct rsnd_dai_stream *io) +{ + struct rsnd_mod *mod = rsnd_io_to_mod_ssi(io); + struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod); + + if (rsnd_flags_has(ssi, RSND_SSI_HDMI0)) + return RSND_SSI_HDMI_PORT0; + + if (rsnd_flags_has(ssi, RSND_SSI_HDMI1)) + return RSND_SSI_HDMI_PORT1; + + return 0; +} + +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[%d] status check failed\n", + rsnd_mod_name(mod), rsnd_mod_id(mod)); +} + +static u32 rsnd_ssi_multi_slaves(struct rsnd_dai_stream *io) +{ + struct rsnd_mod *mod; + 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++) { + 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_slaves_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_slaves_runtime(struct rsnd_dai_stream *io) +{ + if (rsnd_runtime_is_ssi_multi(io)) + return rsnd_ssi_multi_slaves(io); + + return 0; +} + +unsigned int rsnd_ssi_clk_query(struct rsnd_priv *priv, + int param1, int param2, int *idx) +{ + int ssi_clk_mul_table[] = { + 1, 2, 4, 8, 16, 6, 12, + }; + int j, ret; + unsigned int main_rate; + + 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; + + /* + * this driver is assuming that + * system word is 32bit x chan + * see rsnd_ssi_init() + */ + main_rate = 32 * 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_slave(mod, io)) + return 0; + + if (ssi->usrcnt > 0) { + if (ssi->rate != rate) { + dev_err(dev, "SSI parent/child should use same rate\n"); + return -EINVAL; + } + + return 0; + } + + main_rate = rsnd_ssi_clk_query(priv, 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 | SWL_32 | SCKD | SWSD | CKDV(idx); + ssi->wsr = CONT; + ssi->rate = rate; + + dev_dbg(dev, "%s[%d] outputs %u Hz\n", + rsnd_mod_name(mod), + rsnd_mod_id(mod), 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; + + 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 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 is_tdm; + + is_tdm = rsnd_runtime_is_ssi_tdm(io); + + /* + * always use 32bit system word. + * see also rsnd_ssi_master_clk_enable() + */ + cr_own |= FORCE | SWL_32; + + 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; + + /* + * 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; + switch (snd_pcm_format_width(runtime->format)) { + case 16: + cr_own |= DWL_16; + break; + case 24: + cr_own |= DWL_24; + 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 */ + } + + /* + * TDM Extend Mode + * see + * rsnd_ssiu_init_gen2() + */ + wsr = ssi->wsr; + if (is_tdm) { + wsr |= WS_MODE; + cr_own |= CHNL_8; + } +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); + + if (!rsnd_ssi_is_run_mods(mod, io)) + return 0; + + ssi->usrcnt++; + + rsnd_mod_power_on(mod); + + 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[%d] usrcnt error\n", + rsnd_mod_name(mod), rsnd_mod_id(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_ssi *ssi = rsnd_mod_to_ssi(mod); + int chan = params_channels(params); + + /* + * snd_pcm_ops::hw_params will be called *before* + * snd_soc_dai_ops::trigger. Thus, ssi->usrcnt is 0 + * in 1st call. + */ + if (ssi->usrcnt) { + /* + * Already working. + * It will happen if SSI has parent/child connection. + * it is error if child <-> parent SSI uses + * different channels. + */ + if (ssi->chan != chan) + return -EIO; + } + + ssi->chan = chan; + + 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_slaves_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_slaves_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; + + 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; + + 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_dbg_irq_status(dev, "%s[%d] err status : 0x%08x\n", + rsnd_mod_name(mod), rsnd_mod_id(mod), status); + + stop = true; + } + + 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; +} + +/* + * 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_slave(mod, io)) + return; + + switch (rsnd_mod_id(mod)) { + case 1: + case 2: + 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; + + /* + * SSIP/SSIU/IRQ are not needed on + * SSI Multi slaves + */ + if (rsnd_ssi_is_multi_slave(mod, io)) + return 0; + + /* + * It can't judge ssi parent at this point + * see rsnd_ssi_pcm_new() + */ + + ret = rsnd_ssiu_attach(io, mod); + if (ret < 0) + return ret; + + /* + * 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 int rsnd_ssi_prepare(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + return rsnd_ssi_master_clk_start(mod, io); +} + +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, + .prepare = rsnd_ssi_prepare, +}; + +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 slaves + */ + if (rsnd_ssi_is_multi_slave(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[%d] fallback to PIO mode\n", + rsnd_mod_name(mod), rsnd_mod_id(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; + + 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), + mod, name); +} + +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, + .prepare = rsnd_ssi_prepare, +}; + +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); + 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_node *node; + struct device_node *np; + struct rsnd_mod *mod; + int i; + + node = rsnd_ssi_of_node(priv); + if (!node) + return; + + i = 0; + for_each_child_of_node(node, np) { + 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); +} + +static void __rsnd_ssi_parse_hdmi_connection(struct rsnd_priv *priv, + struct rsnd_dai_stream *io, + struct device_node *remote_ep) +{ + struct device *dev = rsnd_priv_to_dev(priv); + struct rsnd_mod *mod = rsnd_io_to_mod_ssi(io); + struct rsnd_ssi *ssi; + struct device_node *remote_node = of_graph_get_port_parent(remote_ep); + + /* support Gen3 only */ + if (!rsnd_is_gen3(priv)) + return; + + if (!mod) + return; + + ssi = rsnd_mod_to_ssi(mod); + + /* HDMI0 */ + if (strstr(remote_node->full_name, "hdmi@fead0000")) { + rsnd_flags_set(ssi, RSND_SSI_HDMI0); + dev_dbg(dev, "%s[%d] connected to HDMI0\n", + rsnd_mod_name(mod), rsnd_mod_id(mod)); + } + + /* HDMI1 */ + if (strstr(remote_node->full_name, "hdmi@feae0000")) { + rsnd_flags_set(ssi, RSND_SSI_HDMI1); + dev_dbg(dev, "%s[%d] connected to HDMI1\n", + rsnd_mod_name(mod), rsnd_mod_id(mod)); + } +} + +void rsnd_ssi_parse_hdmi_connection(struct rsnd_priv *priv, + struct device_node *endpoint, + int dai_i) +{ + struct rsnd_dai *rdai = rsnd_rdai_get(priv, dai_i); + struct device_node *remote_ep; + + remote_ep = of_graph_get_remote_endpoint(endpoint); + if (!remote_ep) + return; + + __rsnd_ssi_parse_hdmi_connection(priv, &rdai->playback, remote_ep); + __rsnd_ssi_parse_hdmi_connection(priv, &rdai->capture, remote_ep); +} + +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)); +} + +static u32 *rsnd_ssi_get_status(struct rsnd_dai_stream *io, + struct rsnd_mod *mod, + 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(io, mod, type); +} + +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 = of_get_child_count(node); + 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; + + 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_get_property(np, "shared-pin", NULL)) + rsnd_flags_set(ssi, RSND_SSI_CLK_PIN_SHARE); + + if (of_get_property(np, "no-busif", NULL)) + 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_ssi_get_status, 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..7b5eb316c --- /dev/null +++ b/sound/soc/sh/rcar/ssiu.c @@ -0,0 +1,289 @@ +// 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; +}; + +#define rsnd_ssiu_nr(priv) ((priv)->ssiu_nr) +#define for_each_rsnd_ssiu(pos, priv, i) \ + for (i = 0; \ + (i < rsnd_ssiu_nr(priv)) && \ + ((pos) = ((struct rsnd_ssiu *)(priv)->ssiu + i)); \ + i++) + +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 multi_ssi_slaves = rsnd_ssi_multi_slaves_runtime(io); + int use_busif = rsnd_ssi_use_busif(io); + int id = rsnd_mod_id(mod); + u32 mask1, val1; + u32 mask2, val2; + + /* clear status */ + switch (id) { + case 0: + case 1: + case 2: + case 3: + case 4: + rsnd_mod_write(mod, SSI_SYS_STATUS0, 0xf << (id * 4)); + rsnd_mod_write(mod, SSI_SYS_STATUS2, 0xf << (id * 4)); + rsnd_mod_write(mod, SSI_SYS_STATUS4, 0xf << (id * 4)); + rsnd_mod_write(mod, SSI_SYS_STATUS6, 0xf << (id * 4)); + break; + case 9: + rsnd_mod_write(mod, SSI_SYS_STATUS1, 0xf << 4); + rsnd_mod_write(mod, SSI_SYS_STATUS3, 0xf << 4); + rsnd_mod_write(mod, SSI_SYS_STATUS5, 0xf << 4); + rsnd_mod_write(mod, SSI_SYS_STATUS7, 0xf << 4); + break; + } + + /* + * SSI_MODE0 + */ + rsnd_mod_bset(mod, SSI_MODE0, (1 << id), !use_busif << id); + + /* + * SSI_MODE1 + */ + mask1 = (1 << 4) | (1 << 20); /* mask sync bit */ + mask2 = (1 << 4); /* mask sync bit */ + val1 = val2 = 0; + if (id == 8) { + /* + * SSI8 pin is sharing with SSI7, nothing to do. + */ + } else if (rsnd_ssi_is_pin_sharing(io)) { + int shift = -1; + + switch (id) { + case 1: + shift = 0; + break; + case 2: + shift = 2; + break; + case 4: + shift = 16; + break; + default: + return -EINVAL; + } + + mask1 |= 0x3 << shift; + val1 = rsnd_rdai_is_clk_master(rdai) ? + 0x2 << shift : 0x1 << shift; + + } else if (multi_ssi_slaves) { + + mask2 |= 0x00000007; + mask1 |= 0x0000000f; + + switch (multi_ssi_slaves) { + case 0x0206: /* SSI0/1/2/9 */ + val2 = (1 << 4) | /* SSI0129 sync */ + (rsnd_rdai_is_clk_master(rdai) ? 0x2 : 0x1); + /* fall through */ + case 0x0006: /* SSI0/1/2 */ + val1 = rsnd_rdai_is_clk_master(rdai) ? + 0xa : 0x5; + + if (!val2) /* SSI012 sync */ + val1 |= (1 << 4); + } + } + + rsnd_mod_bset(mod, SSI_MODE1, mask1, val1); + rsnd_mod_bset(mod, SSI_MODE2, mask2, val2); + + return 0; +} + +static struct rsnd_mod_ops rsnd_ssiu_ops_gen1 = { + .name = SSIU_NAME, + .init = rsnd_ssiu_init, +}; + +static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + int hdmi = rsnd_ssi_hdmi_port(io); + int ret; + u32 mode = 0; + + ret = rsnd_ssiu_init(mod, io, priv); + if (ret < 0) + return ret; + + if (rsnd_runtime_is_ssi_tdm(io)) { + /* + * TDM Extend Mode + * see + * rsnd_ssi_config_init() + */ + mode = 0x1; + } + + rsnd_mod_write(mod, SSI_MODE, mode); + + if (rsnd_ssi_use_busif(io)) { + rsnd_mod_write(mod, SSI_BUSIF_ADINR, + 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, SSI_BUSIF_MODE, + rsnd_get_busif_shift(io, mod) | 1); + rsnd_mod_write(mod, SSI_BUSIF_DALIGN, + rsnd_get_dalign(mod, io)); + } + + if (hdmi) { + 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, shift; + + 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) { + shift = (i * 4) + 20; + val = (val & ~(0xF << shift)) | + rsnd_mod_id(pos) << shift; + } + + switch (hdmi) { + case RSND_SSI_HDMI_PORT0: + rsnd_mod_write(mod, HDMI0_SEL, val); + break; + case RSND_SSI_HDMI_PORT1: + rsnd_mod_write(mod, HDMI1_SEL, val); + break; + } + } + + return 0; +} + +static int rsnd_ssiu_start_gen2(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + if (!rsnd_ssi_use_busif(io)) + return 0; + + rsnd_mod_write(mod, SSI_CTRL, 0x1); + + if (rsnd_ssi_multi_slaves_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) +{ + if (!rsnd_ssi_use_busif(io)) + return 0; + + rsnd_mod_write(mod, SSI_CTRL, 0); + + if (rsnd_ssi_multi_slaves_runtime(io)) + rsnd_mod_write(mod, SSI_CONTROL, 0); + + return 0; +} + +static struct rsnd_mod_ops rsnd_ssiu_ops_gen2 = { + .name = SSIU_NAME, + .init = rsnd_ssiu_init_gen2, + .start = rsnd_ssiu_start_gen2, + .stop = rsnd_ssiu_stop_gen2, +}; + +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); +} + +int rsnd_ssiu_attach(struct rsnd_dai_stream *io, + struct rsnd_mod *ssi_mod) +{ + struct rsnd_priv *priv = rsnd_io_to_priv(io); + struct rsnd_mod *mod = rsnd_ssiu_mod_get(priv, rsnd_mod_id(ssi_mod)); + + rsnd_mod_confirm_ssi(ssi_mod); + + return rsnd_dai_connect(mod, io, mod->type); +} + +int rsnd_ssiu_probe(struct rsnd_priv *priv) +{ + struct device *dev = rsnd_priv_to_dev(priv); + struct rsnd_ssiu *ssiu; + struct rsnd_mod_ops *ops; + int i, nr, ret; + + /* same number to SSI */ + nr = priv->ssi_nr; + 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; + + for_each_rsnd_ssiu(ssiu, priv, i) { + ret = rsnd_mod_init(priv, rsnd_mod_get(ssiu), + ops, NULL, rsnd_mod_get_status, + 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)); + } +} |