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-rw-r--r--sound/soc/codecs/wm8580.c1063
1 files changed, 1063 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
new file mode 100644
index 000000000..85ad2f03c
--- /dev/null
+++ b/sound/soc/codecs/wm8580.c
@@ -0,0 +1,1063 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * wm8580.c -- WM8580 and WM8581 ALSA Soc Audio driver
+ *
+ * Copyright 2008-12 Wolfson Microelectronics PLC.
+ *
+ * Notes:
+ * The WM8580 is a multichannel codec with S/PDIF support, featuring six
+ * DAC channels and two ADC channels.
+ *
+ * The WM8581 is a multichannel codec with S/PDIF support, featuring eight
+ * DAC channels and two ADC channels.
+ *
+ * Currently only the primary audio interface is supported - S/PDIF and
+ * the secondary audio interfaces are not.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/of_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include <sound/initval.h>
+#include <asm/div64.h>
+
+#include "wm8580.h"
+
+/* WM8580 register space */
+#define WM8580_PLLA1 0x00
+#define WM8580_PLLA2 0x01
+#define WM8580_PLLA3 0x02
+#define WM8580_PLLA4 0x03
+#define WM8580_PLLB1 0x04
+#define WM8580_PLLB2 0x05
+#define WM8580_PLLB3 0x06
+#define WM8580_PLLB4 0x07
+#define WM8580_CLKSEL 0x08
+#define WM8580_PAIF1 0x09
+#define WM8580_PAIF2 0x0A
+#define WM8580_SAIF1 0x0B
+#define WM8580_PAIF3 0x0C
+#define WM8580_PAIF4 0x0D
+#define WM8580_SAIF2 0x0E
+#define WM8580_DAC_CONTROL1 0x0F
+#define WM8580_DAC_CONTROL2 0x10
+#define WM8580_DAC_CONTROL3 0x11
+#define WM8580_DAC_CONTROL4 0x12
+#define WM8580_DAC_CONTROL5 0x13
+#define WM8580_DIGITAL_ATTENUATION_DACL1 0x14
+#define WM8580_DIGITAL_ATTENUATION_DACR1 0x15
+#define WM8580_DIGITAL_ATTENUATION_DACL2 0x16
+#define WM8580_DIGITAL_ATTENUATION_DACR2 0x17
+#define WM8580_DIGITAL_ATTENUATION_DACL3 0x18
+#define WM8580_DIGITAL_ATTENUATION_DACR3 0x19
+#define WM8581_DIGITAL_ATTENUATION_DACL4 0x1A
+#define WM8581_DIGITAL_ATTENUATION_DACR4 0x1B
+#define WM8580_MASTER_DIGITAL_ATTENUATION 0x1C
+#define WM8580_ADC_CONTROL1 0x1D
+#define WM8580_SPDTXCHAN0 0x1E
+#define WM8580_SPDTXCHAN1 0x1F
+#define WM8580_SPDTXCHAN2 0x20
+#define WM8580_SPDTXCHAN3 0x21
+#define WM8580_SPDTXCHAN4 0x22
+#define WM8580_SPDTXCHAN5 0x23
+#define WM8580_SPDMODE 0x24
+#define WM8580_INTMASK 0x25
+#define WM8580_GPO1 0x26
+#define WM8580_GPO2 0x27
+#define WM8580_GPO3 0x28
+#define WM8580_GPO4 0x29
+#define WM8580_GPO5 0x2A
+#define WM8580_INTSTAT 0x2B
+#define WM8580_SPDRXCHAN1 0x2C
+#define WM8580_SPDRXCHAN2 0x2D
+#define WM8580_SPDRXCHAN3 0x2E
+#define WM8580_SPDRXCHAN4 0x2F
+#define WM8580_SPDRXCHAN5 0x30
+#define WM8580_SPDSTAT 0x31
+#define WM8580_PWRDN1 0x32
+#define WM8580_PWRDN2 0x33
+#define WM8580_READBACK 0x34
+#define WM8580_RESET 0x35
+
+#define WM8580_MAX_REGISTER 0x35
+
+#define WM8580_DACOSR 0x40
+
+/* PLLB4 (register 7h) */
+#define WM8580_PLLB4_MCLKOUTSRC_MASK 0x60
+#define WM8580_PLLB4_MCLKOUTSRC_PLLA 0x20
+#define WM8580_PLLB4_MCLKOUTSRC_PLLB 0x40
+#define WM8580_PLLB4_MCLKOUTSRC_OSC 0x60
+
+#define WM8580_PLLB4_CLKOUTSRC_MASK 0x180
+#define WM8580_PLLB4_CLKOUTSRC_PLLACLK 0x080
+#define WM8580_PLLB4_CLKOUTSRC_PLLBCLK 0x100
+#define WM8580_PLLB4_CLKOUTSRC_OSCCLK 0x180
+
+/* CLKSEL (register 8h) */
+#define WM8580_CLKSEL_DAC_CLKSEL_MASK 0x03
+#define WM8580_CLKSEL_DAC_CLKSEL_PLLA 0x01
+#define WM8580_CLKSEL_DAC_CLKSEL_PLLB 0x02
+
+/* AIF control 1 (registers 9h-bh) */
+#define WM8580_AIF_RATE_MASK 0x7
+#define WM8580_AIF_BCLKSEL_MASK 0x18
+
+#define WM8580_AIF_MS 0x20
+
+#define WM8580_AIF_CLKSRC_MASK 0xc0
+#define WM8580_AIF_CLKSRC_PLLA 0x40
+#define WM8580_AIF_CLKSRC_PLLB 0x40
+#define WM8580_AIF_CLKSRC_MCLK 0xc0
+
+/* AIF control 2 (registers ch-eh) */
+#define WM8580_AIF_FMT_MASK 0x03
+#define WM8580_AIF_FMT_RIGHTJ 0x00
+#define WM8580_AIF_FMT_LEFTJ 0x01
+#define WM8580_AIF_FMT_I2S 0x02
+#define WM8580_AIF_FMT_DSP 0x03
+
+#define WM8580_AIF_LENGTH_MASK 0x0c
+#define WM8580_AIF_LENGTH_16 0x00
+#define WM8580_AIF_LENGTH_20 0x04
+#define WM8580_AIF_LENGTH_24 0x08
+#define WM8580_AIF_LENGTH_32 0x0c
+
+#define WM8580_AIF_LRP 0x10
+#define WM8580_AIF_BCP 0x20
+
+/* Powerdown Register 1 (register 32h) */
+#define WM8580_PWRDN1_PWDN 0x001
+#define WM8580_PWRDN1_ALLDACPD 0x040
+
+/* Powerdown Register 2 (register 33h) */
+#define WM8580_PWRDN2_OSSCPD 0x001
+#define WM8580_PWRDN2_PLLAPD 0x002
+#define WM8580_PWRDN2_PLLBPD 0x004
+#define WM8580_PWRDN2_SPDIFPD 0x008
+#define WM8580_PWRDN2_SPDIFTXD 0x010
+#define WM8580_PWRDN2_SPDIFRXD 0x020
+
+#define WM8580_DAC_CONTROL5_MUTEALL 0x10
+
+/*
+ * wm8580 register cache
+ * We can't read the WM8580 register space when we
+ * are using 2 wire for device control, so we cache them instead.
+ */
+static const struct reg_default wm8580_reg_defaults[] = {
+ { 0, 0x0121 },
+ { 1, 0x017e },
+ { 2, 0x007d },
+ { 3, 0x0014 },
+ { 4, 0x0121 },
+ { 5, 0x017e },
+ { 6, 0x007d },
+ { 7, 0x0194 },
+ { 8, 0x0010 },
+ { 9, 0x0002 },
+ { 10, 0x0002 },
+ { 11, 0x00c2 },
+ { 12, 0x0182 },
+ { 13, 0x0082 },
+ { 14, 0x000a },
+ { 15, 0x0024 },
+ { 16, 0x0009 },
+ { 17, 0x0000 },
+ { 18, 0x00ff },
+ { 19, 0x0000 },
+ { 20, 0x00ff },
+ { 21, 0x00ff },
+ { 22, 0x00ff },
+ { 23, 0x00ff },
+ { 24, 0x00ff },
+ { 25, 0x00ff },
+ { 26, 0x00ff },
+ { 27, 0x00ff },
+ { 28, 0x01f0 },
+ { 29, 0x0040 },
+ { 30, 0x0000 },
+ { 31, 0x0000 },
+ { 32, 0x0000 },
+ { 33, 0x0000 },
+ { 34, 0x0031 },
+ { 35, 0x000b },
+ { 36, 0x0039 },
+ { 37, 0x0000 },
+ { 38, 0x0010 },
+ { 39, 0x0032 },
+ { 40, 0x0054 },
+ { 41, 0x0076 },
+ { 42, 0x0098 },
+ { 43, 0x0000 },
+ { 44, 0x0000 },
+ { 45, 0x0000 },
+ { 46, 0x0000 },
+ { 47, 0x0000 },
+ { 48, 0x0000 },
+ { 49, 0x0000 },
+ { 50, 0x005e },
+ { 51, 0x003e },
+ { 52, 0x0000 },
+};
+
+static bool wm8580_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8580_RESET:
+ return true;
+ default:
+ return false;
+ }
+}
+
+struct pll_state {
+ unsigned int in;
+ unsigned int out;
+};
+
+#define WM8580_NUM_SUPPLIES 3
+static const char *wm8580_supply_names[WM8580_NUM_SUPPLIES] = {
+ "AVDD",
+ "DVDD",
+ "PVDD",
+};
+
+struct wm8580_driver_data {
+ int num_dacs;
+};
+
+/* codec private data */
+struct wm8580_priv {
+ struct regmap *regmap;
+ struct regulator_bulk_data supplies[WM8580_NUM_SUPPLIES];
+ struct pll_state a;
+ struct pll_state b;
+ const struct wm8580_driver_data *drvdata;
+ int sysclk[2];
+};
+
+static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
+
+static int wm8580_out_vu(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+ struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
+ unsigned int reg = mc->reg;
+ unsigned int reg2 = mc->rreg;
+ int ret;
+
+ /* Clear the register cache VU so we write without VU set */
+ regcache_cache_only(wm8580->regmap, true);
+ regmap_update_bits(wm8580->regmap, reg, 0x100, 0x000);
+ regmap_update_bits(wm8580->regmap, reg2, 0x100, 0x000);
+ regcache_cache_only(wm8580->regmap, false);
+
+ ret = snd_soc_put_volsw(kcontrol, ucontrol);
+ if (ret < 0)
+ return ret;
+
+ /* Now write again with the volume update bit set */
+ snd_soc_component_update_bits(component, reg, 0x100, 0x100);
+ snd_soc_component_update_bits(component, reg2, 0x100, 0x100);
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new wm8580_snd_controls[] = {
+SOC_DOUBLE_R_EXT_TLV("DAC1 Playback Volume",
+ WM8580_DIGITAL_ATTENUATION_DACL1,
+ WM8580_DIGITAL_ATTENUATION_DACR1,
+ 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
+SOC_DOUBLE_R_EXT_TLV("DAC2 Playback Volume",
+ WM8580_DIGITAL_ATTENUATION_DACL2,
+ WM8580_DIGITAL_ATTENUATION_DACR2,
+ 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
+SOC_DOUBLE_R_EXT_TLV("DAC3 Playback Volume",
+ WM8580_DIGITAL_ATTENUATION_DACL3,
+ WM8580_DIGITAL_ATTENUATION_DACR3,
+ 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
+
+SOC_SINGLE("DAC1 Deemphasis Switch", WM8580_DAC_CONTROL3, 0, 1, 0),
+SOC_SINGLE("DAC2 Deemphasis Switch", WM8580_DAC_CONTROL3, 1, 1, 0),
+SOC_SINGLE("DAC3 Deemphasis Switch", WM8580_DAC_CONTROL3, 2, 1, 0),
+
+SOC_DOUBLE("DAC1 Invert Switch", WM8580_DAC_CONTROL4, 0, 1, 1, 0),
+SOC_DOUBLE("DAC2 Invert Switch", WM8580_DAC_CONTROL4, 2, 3, 1, 0),
+SOC_DOUBLE("DAC3 Invert Switch", WM8580_DAC_CONTROL4, 4, 5, 1, 0),
+
+SOC_SINGLE("DAC ZC Switch", WM8580_DAC_CONTROL5, 5, 1, 0),
+SOC_SINGLE("DAC1 Switch", WM8580_DAC_CONTROL5, 0, 1, 1),
+SOC_SINGLE("DAC2 Switch", WM8580_DAC_CONTROL5, 1, 1, 1),
+SOC_SINGLE("DAC3 Switch", WM8580_DAC_CONTROL5, 2, 1, 1),
+
+SOC_DOUBLE("Capture Switch", WM8580_ADC_CONTROL1, 0, 1, 1, 1),
+SOC_SINGLE("Capture High-Pass Filter Switch", WM8580_ADC_CONTROL1, 4, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8581_snd_controls[] = {
+SOC_DOUBLE_R_EXT_TLV("DAC4 Playback Volume",
+ WM8581_DIGITAL_ATTENUATION_DACL4,
+ WM8581_DIGITAL_ATTENUATION_DACR4,
+ 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
+
+SOC_SINGLE("DAC4 Deemphasis Switch", WM8580_DAC_CONTROL3, 3, 1, 0),
+
+SOC_DOUBLE("DAC4 Invert Switch", WM8580_DAC_CONTROL4, 8, 7, 1, 0),
+
+SOC_SINGLE("DAC4 Switch", WM8580_DAC_CONTROL5, 3, 1, 1),
+};
+
+static const struct snd_soc_dapm_widget wm8580_dapm_widgets[] = {
+SND_SOC_DAPM_DAC("DAC1", "Playback", WM8580_PWRDN1, 2, 1),
+SND_SOC_DAPM_DAC("DAC2", "Playback", WM8580_PWRDN1, 3, 1),
+SND_SOC_DAPM_DAC("DAC3", "Playback", WM8580_PWRDN1, 4, 1),
+
+SND_SOC_DAPM_OUTPUT("VOUT1L"),
+SND_SOC_DAPM_OUTPUT("VOUT1R"),
+SND_SOC_DAPM_OUTPUT("VOUT2L"),
+SND_SOC_DAPM_OUTPUT("VOUT2R"),
+SND_SOC_DAPM_OUTPUT("VOUT3L"),
+SND_SOC_DAPM_OUTPUT("VOUT3R"),
+
+SND_SOC_DAPM_ADC("ADC", "Capture", WM8580_PWRDN1, 1, 1),
+
+SND_SOC_DAPM_INPUT("AINL"),
+SND_SOC_DAPM_INPUT("AINR"),
+};
+
+static const struct snd_soc_dapm_widget wm8581_dapm_widgets[] = {
+SND_SOC_DAPM_DAC("DAC4", "Playback", WM8580_PWRDN1, 5, 1),
+
+SND_SOC_DAPM_OUTPUT("VOUT4L"),
+SND_SOC_DAPM_OUTPUT("VOUT4R"),
+};
+
+static const struct snd_soc_dapm_route wm8580_dapm_routes[] = {
+ { "VOUT1L", NULL, "DAC1" },
+ { "VOUT1R", NULL, "DAC1" },
+
+ { "VOUT2L", NULL, "DAC2" },
+ { "VOUT2R", NULL, "DAC2" },
+
+ { "VOUT3L", NULL, "DAC3" },
+ { "VOUT3R", NULL, "DAC3" },
+
+ { "ADC", NULL, "AINL" },
+ { "ADC", NULL, "AINR" },
+};
+
+static const struct snd_soc_dapm_route wm8581_dapm_routes[] = {
+ { "VOUT4L", NULL, "DAC4" },
+ { "VOUT4R", NULL, "DAC4" },
+};
+
+/* PLL divisors */
+struct _pll_div {
+ u32 prescale:1;
+ u32 postscale:1;
+ u32 freqmode:2;
+ u32 n:4;
+ u32 k:24;
+};
+
+/* The size in bits of the pll divide */
+#define FIXED_PLL_SIZE (1 << 22)
+
+/* PLL rate to output rate divisions */
+static struct {
+ unsigned int div;
+ unsigned int freqmode;
+ unsigned int postscale;
+} post_table[] = {
+ { 2, 0, 0 },
+ { 4, 0, 1 },
+ { 4, 1, 0 },
+ { 8, 1, 1 },
+ { 8, 2, 0 },
+ { 16, 2, 1 },
+ { 12, 3, 0 },
+ { 24, 3, 1 }
+};
+
+static int pll_factors(struct _pll_div *pll_div, unsigned int target,
+ unsigned int source)
+{
+ u64 Kpart;
+ unsigned int K, Ndiv, Nmod;
+ int i;
+
+ pr_debug("wm8580: PLL %uHz->%uHz\n", source, target);
+
+ /* Scale the output frequency up; the PLL should run in the
+ * region of 90-100MHz.
+ */
+ for (i = 0; i < ARRAY_SIZE(post_table); i++) {
+ if (target * post_table[i].div >= 90000000 &&
+ target * post_table[i].div <= 100000000) {
+ pll_div->freqmode = post_table[i].freqmode;
+ pll_div->postscale = post_table[i].postscale;
+ target *= post_table[i].div;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(post_table)) {
+ printk(KERN_ERR "wm8580: Unable to scale output frequency "
+ "%u\n", target);
+ return -EINVAL;
+ }
+
+ Ndiv = target / source;
+
+ if (Ndiv < 5) {
+ source /= 2;
+ pll_div->prescale = 1;
+ Ndiv = target / source;
+ } else
+ pll_div->prescale = 0;
+
+ if ((Ndiv < 5) || (Ndiv > 13)) {
+ printk(KERN_ERR
+ "WM8580 N=%u outside supported range\n", Ndiv);
+ return -EINVAL;
+ }
+
+ pll_div->n = Ndiv;
+ Nmod = target % source;
+ Kpart = FIXED_PLL_SIZE * (long long)Nmod;
+
+ do_div(Kpart, source);
+
+ K = Kpart & 0xFFFFFFFF;
+
+ pll_div->k = K;
+
+ pr_debug("PLL %x.%x prescale %d freqmode %d postscale %d\n",
+ pll_div->n, pll_div->k, pll_div->prescale, pll_div->freqmode,
+ pll_div->postscale);
+
+ return 0;
+}
+
+static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+ int source, unsigned int freq_in, unsigned int freq_out)
+{
+ int offset;
+ struct snd_soc_component *component = codec_dai->component;
+ struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
+ struct pll_state *state;
+ struct _pll_div pll_div;
+ unsigned int reg;
+ unsigned int pwr_mask;
+ int ret;
+
+ /* GCC isn't able to work out the ifs below for initialising/using
+ * pll_div so suppress warnings.
+ */
+ memset(&pll_div, 0, sizeof(pll_div));
+
+ switch (pll_id) {
+ case WM8580_PLLA:
+ state = &wm8580->a;
+ offset = 0;
+ pwr_mask = WM8580_PWRDN2_PLLAPD;
+ break;
+ case WM8580_PLLB:
+ state = &wm8580->b;
+ offset = 4;
+ pwr_mask = WM8580_PWRDN2_PLLBPD;
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ if (freq_in && freq_out) {
+ ret = pll_factors(&pll_div, freq_out, freq_in);
+ if (ret != 0)
+ return ret;
+ }
+
+ state->in = freq_in;
+ state->out = freq_out;
+
+ /* Always disable the PLL - it is not safe to leave it running
+ * while reprogramming it.
+ */
+ snd_soc_component_update_bits(component, WM8580_PWRDN2, pwr_mask, pwr_mask);
+
+ if (!freq_in || !freq_out)
+ return 0;
+
+ snd_soc_component_write(component, WM8580_PLLA1 + offset, pll_div.k & 0x1ff);
+ snd_soc_component_write(component, WM8580_PLLA2 + offset, (pll_div.k >> 9) & 0x1ff);
+ snd_soc_component_write(component, WM8580_PLLA3 + offset,
+ (pll_div.k >> 18 & 0xf) | (pll_div.n << 4));
+
+ reg = snd_soc_component_read(component, WM8580_PLLA4 + offset);
+ reg &= ~0x1b;
+ reg |= pll_div.prescale | pll_div.postscale << 1 |
+ pll_div.freqmode << 3;
+
+ snd_soc_component_write(component, WM8580_PLLA4 + offset, reg);
+
+ /* All done, turn it on */
+ snd_soc_component_update_bits(component, WM8580_PWRDN2, pwr_mask, 0);
+
+ return 0;
+}
+
+static const int wm8580_sysclk_ratios[] = {
+ 128, 192, 256, 384, 512, 768, 1152,
+};
+
+/*
+ * Set PCM DAI bit size and sample rate.
+ */
+static int wm8580_paif_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
+ u16 paifa = 0;
+ u16 paifb = 0;
+ int i, ratio, osr;
+
+ /* bit size */
+ switch (params_width(params)) {
+ case 16:
+ paifa |= 0x8;
+ break;
+ case 20:
+ paifa |= 0x0;
+ paifb |= WM8580_AIF_LENGTH_20;
+ break;
+ case 24:
+ paifa |= 0x0;
+ paifb |= WM8580_AIF_LENGTH_24;
+ break;
+ case 32:
+ paifa |= 0x0;
+ paifb |= WM8580_AIF_LENGTH_32;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Look up the SYSCLK ratio; accept only exact matches */
+ ratio = wm8580->sysclk[dai->driver->id] / params_rate(params);
+ for (i = 0; i < ARRAY_SIZE(wm8580_sysclk_ratios); i++)
+ if (ratio == wm8580_sysclk_ratios[i])
+ break;
+ if (i == ARRAY_SIZE(wm8580_sysclk_ratios)) {
+ dev_err(component->dev, "Invalid clock ratio %d/%d\n",
+ wm8580->sysclk[dai->driver->id], params_rate(params));
+ return -EINVAL;
+ }
+ paifa |= i;
+ dev_dbg(component->dev, "Running at %dfs with %dHz clock\n",
+ wm8580_sysclk_ratios[i], wm8580->sysclk[dai->driver->id]);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ switch (ratio) {
+ case 128:
+ case 192:
+ osr = WM8580_DACOSR;
+ dev_dbg(component->dev, "Selecting 64x OSR\n");
+ break;
+ default:
+ osr = 0;
+ dev_dbg(component->dev, "Selecting 128x OSR\n");
+ break;
+ }
+
+ snd_soc_component_update_bits(component, WM8580_PAIF3, WM8580_DACOSR, osr);
+ }
+
+ snd_soc_component_update_bits(component, WM8580_PAIF1 + dai->driver->id,
+ WM8580_AIF_RATE_MASK | WM8580_AIF_BCLKSEL_MASK,
+ paifa);
+ snd_soc_component_update_bits(component, WM8580_PAIF3 + dai->driver->id,
+ WM8580_AIF_LENGTH_MASK, paifb);
+ return 0;
+}
+
+static int wm8580_set_paif_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ unsigned int aifa;
+ unsigned int aifb;
+ int can_invert_lrclk;
+
+ aifa = snd_soc_component_read(component, WM8580_PAIF1 + codec_dai->driver->id);
+ aifb = snd_soc_component_read(component, WM8580_PAIF3 + codec_dai->driver->id);
+
+ aifb &= ~(WM8580_AIF_FMT_MASK | WM8580_AIF_LRP | WM8580_AIF_BCP);
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ aifa &= ~WM8580_AIF_MS;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ aifa |= WM8580_AIF_MS;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ can_invert_lrclk = 1;
+ aifb |= WM8580_AIF_FMT_I2S;
+ break;
+ case SND_SOC_DAIFMT_RIGHT_J:
+ can_invert_lrclk = 1;
+ aifb |= WM8580_AIF_FMT_RIGHTJ;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ can_invert_lrclk = 1;
+ aifb |= WM8580_AIF_FMT_LEFTJ;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ can_invert_lrclk = 0;
+ aifb |= WM8580_AIF_FMT_DSP;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ can_invert_lrclk = 0;
+ aifb |= WM8580_AIF_FMT_DSP;
+ aifb |= WM8580_AIF_LRP;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+
+ case SND_SOC_DAIFMT_IB_IF:
+ if (!can_invert_lrclk)
+ return -EINVAL;
+ aifb |= WM8580_AIF_BCP;
+ aifb |= WM8580_AIF_LRP;
+ break;
+
+ case SND_SOC_DAIFMT_IB_NF:
+ aifb |= WM8580_AIF_BCP;
+ break;
+
+ case SND_SOC_DAIFMT_NB_IF:
+ if (!can_invert_lrclk)
+ return -EINVAL;
+ aifb |= WM8580_AIF_LRP;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ snd_soc_component_write(component, WM8580_PAIF1 + codec_dai->driver->id, aifa);
+ snd_soc_component_write(component, WM8580_PAIF3 + codec_dai->driver->id, aifb);
+
+ return 0;
+}
+
+static int wm8580_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
+ int div_id, int div)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ unsigned int reg;
+
+ switch (div_id) {
+ case WM8580_MCLK:
+ reg = snd_soc_component_read(component, WM8580_PLLB4);
+ reg &= ~WM8580_PLLB4_MCLKOUTSRC_MASK;
+
+ switch (div) {
+ case WM8580_CLKSRC_MCLK:
+ /* Input */
+ break;
+
+ case WM8580_CLKSRC_PLLA:
+ reg |= WM8580_PLLB4_MCLKOUTSRC_PLLA;
+ break;
+ case WM8580_CLKSRC_PLLB:
+ reg |= WM8580_PLLB4_MCLKOUTSRC_PLLB;
+ break;
+
+ case WM8580_CLKSRC_OSC:
+ reg |= WM8580_PLLB4_MCLKOUTSRC_OSC;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ snd_soc_component_write(component, WM8580_PLLB4, reg);
+ break;
+
+ case WM8580_CLKOUTSRC:
+ reg = snd_soc_component_read(component, WM8580_PLLB4);
+ reg &= ~WM8580_PLLB4_CLKOUTSRC_MASK;
+
+ switch (div) {
+ case WM8580_CLKSRC_NONE:
+ break;
+
+ case WM8580_CLKSRC_PLLA:
+ reg |= WM8580_PLLB4_CLKOUTSRC_PLLACLK;
+ break;
+
+ case WM8580_CLKSRC_PLLB:
+ reg |= WM8580_PLLB4_CLKOUTSRC_PLLBCLK;
+ break;
+
+ case WM8580_CLKSRC_OSC:
+ reg |= WM8580_PLLB4_CLKOUTSRC_OSCCLK;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ snd_soc_component_write(component, WM8580_PLLB4, reg);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int wm8580_set_sysclk(struct snd_soc_dai *dai, int clk_id,
+ unsigned int freq, int dir)
+{
+ struct snd_soc_component *component = dai->component;
+ struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
+ int ret, sel, sel_mask, sel_shift;
+
+ switch (dai->driver->id) {
+ case WM8580_DAI_PAIFRX:
+ sel_mask = 0x3;
+ sel_shift = 0;
+ break;
+
+ case WM8580_DAI_PAIFTX:
+ sel_mask = 0xc;
+ sel_shift = 2;
+ break;
+
+ default:
+ WARN(1, "Unknown DAI driver ID\n");
+ return -EINVAL;
+ }
+
+ switch (clk_id) {
+ case WM8580_CLKSRC_ADCMCLK:
+ if (dai->driver->id != WM8580_DAI_PAIFTX)
+ return -EINVAL;
+ sel = 0 << sel_shift;
+ break;
+ case WM8580_CLKSRC_PLLA:
+ sel = 1 << sel_shift;
+ break;
+ case WM8580_CLKSRC_PLLB:
+ sel = 2 << sel_shift;
+ break;
+ case WM8580_CLKSRC_MCLK:
+ sel = 3 << sel_shift;
+ break;
+ default:
+ dev_err(component->dev, "Unknown clock %d\n", clk_id);
+ return -EINVAL;
+ }
+
+ /* We really should validate PLL settings but not yet */
+ wm8580->sysclk[dai->driver->id] = freq;
+
+ ret = snd_soc_component_update_bits(component, WM8580_CLKSEL, sel_mask, sel);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int wm8580_mute(struct snd_soc_dai *codec_dai, int mute, int direction)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ unsigned int reg;
+
+ reg = snd_soc_component_read(component, WM8580_DAC_CONTROL5);
+
+ if (mute)
+ reg |= WM8580_DAC_CONTROL5_MUTEALL;
+ else
+ reg &= ~WM8580_DAC_CONTROL5_MUTEALL;
+
+ snd_soc_component_write(component, WM8580_DAC_CONTROL5, reg);
+
+ return 0;
+}
+
+static int wm8580_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ case SND_SOC_BIAS_PREPARE:
+ break;
+
+ case SND_SOC_BIAS_STANDBY:
+ if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
+ /* Power up and get individual control of the DACs */
+ snd_soc_component_update_bits(component, WM8580_PWRDN1,
+ WM8580_PWRDN1_PWDN |
+ WM8580_PWRDN1_ALLDACPD, 0);
+
+ /* Make VMID high impedance */
+ snd_soc_component_update_bits(component, WM8580_ADC_CONTROL1,
+ 0x100, 0);
+ }
+ break;
+
+ case SND_SOC_BIAS_OFF:
+ snd_soc_component_update_bits(component, WM8580_PWRDN1,
+ WM8580_PWRDN1_PWDN, WM8580_PWRDN1_PWDN);
+ break;
+ }
+ return 0;
+}
+
+static int wm8580_playback_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
+
+ return snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_CHANNELS, 1, wm8580->drvdata->num_dacs * 2);
+}
+
+#define WM8580_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+static const struct snd_soc_dai_ops wm8580_dai_ops_playback = {
+ .startup = wm8580_playback_startup,
+ .set_sysclk = wm8580_set_sysclk,
+ .hw_params = wm8580_paif_hw_params,
+ .set_fmt = wm8580_set_paif_dai_fmt,
+ .set_clkdiv = wm8580_set_dai_clkdiv,
+ .set_pll = wm8580_set_dai_pll,
+ .mute_stream = wm8580_mute,
+ .no_capture_mute = 1,
+};
+
+static const struct snd_soc_dai_ops wm8580_dai_ops_capture = {
+ .set_sysclk = wm8580_set_sysclk,
+ .hw_params = wm8580_paif_hw_params,
+ .set_fmt = wm8580_set_paif_dai_fmt,
+ .set_clkdiv = wm8580_set_dai_clkdiv,
+ .set_pll = wm8580_set_dai_pll,
+};
+
+static struct snd_soc_dai_driver wm8580_dai[] = {
+ {
+ .name = "wm8580-hifi-playback",
+ .id = WM8580_DAI_PAIFRX,
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = WM8580_FORMATS,
+ },
+ .ops = &wm8580_dai_ops_playback,
+ },
+ {
+ .name = "wm8580-hifi-capture",
+ .id = WM8580_DAI_PAIFTX,
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = WM8580_FORMATS,
+ },
+ .ops = &wm8580_dai_ops_capture,
+ },
+};
+
+static int wm8580_probe(struct snd_soc_component *component)
+{
+ struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+ int ret = 0;
+
+ switch (wm8580->drvdata->num_dacs) {
+ case 4:
+ snd_soc_add_component_controls(component, wm8581_snd_controls,
+ ARRAY_SIZE(wm8581_snd_controls));
+ snd_soc_dapm_new_controls(dapm, wm8581_dapm_widgets,
+ ARRAY_SIZE(wm8581_dapm_widgets));
+ snd_soc_dapm_add_routes(dapm, wm8581_dapm_routes,
+ ARRAY_SIZE(wm8581_dapm_routes));
+ break;
+ default:
+ break;
+ }
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(wm8580->supplies),
+ wm8580->supplies);
+ if (ret != 0) {
+ dev_err(component->dev, "Failed to enable supplies: %d\n", ret);
+ goto err_regulator_get;
+ }
+
+ /* Get the codec into a known state */
+ ret = snd_soc_component_write(component, WM8580_RESET, 0);
+ if (ret != 0) {
+ dev_err(component->dev, "Failed to reset component: %d\n", ret);
+ goto err_regulator_enable;
+ }
+
+ return 0;
+
+err_regulator_enable:
+ regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
+err_regulator_get:
+ return ret;
+}
+
+/* power down chip */
+static void wm8580_remove(struct snd_soc_component *component)
+{
+ struct wm8580_priv *wm8580 = snd_soc_component_get_drvdata(component);
+
+ regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
+}
+
+static const struct snd_soc_component_driver soc_component_dev_wm8580 = {
+ .probe = wm8580_probe,
+ .remove = wm8580_remove,
+ .set_bias_level = wm8580_set_bias_level,
+ .controls = wm8580_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8580_snd_controls),
+ .dapm_widgets = wm8580_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8580_dapm_widgets),
+ .dapm_routes = wm8580_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(wm8580_dapm_routes),
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
+static const struct regmap_config wm8580_regmap = {
+ .reg_bits = 7,
+ .val_bits = 9,
+ .max_register = WM8580_MAX_REGISTER,
+
+ .reg_defaults = wm8580_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8580_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+
+ .volatile_reg = wm8580_volatile,
+};
+
+static const struct wm8580_driver_data wm8580_data = {
+ .num_dacs = 3,
+};
+
+static const struct wm8580_driver_data wm8581_data = {
+ .num_dacs = 4,
+};
+
+static const struct of_device_id wm8580_of_match[] = {
+ { .compatible = "wlf,wm8580", .data = &wm8580_data },
+ { .compatible = "wlf,wm8581", .data = &wm8581_data },
+ { },
+};
+MODULE_DEVICE_TABLE(of, wm8580_of_match);
+
+static int wm8580_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ const struct of_device_id *of_id;
+ struct wm8580_priv *wm8580;
+ int ret, i;
+
+ wm8580 = devm_kzalloc(&i2c->dev, sizeof(struct wm8580_priv),
+ GFP_KERNEL);
+ if (wm8580 == NULL)
+ return -ENOMEM;
+
+ wm8580->regmap = devm_regmap_init_i2c(i2c, &wm8580_regmap);
+ if (IS_ERR(wm8580->regmap))
+ return PTR_ERR(wm8580->regmap);
+
+ for (i = 0; i < ARRAY_SIZE(wm8580->supplies); i++)
+ wm8580->supplies[i].supply = wm8580_supply_names[i];
+
+ ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8580->supplies),
+ wm8580->supplies);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
+ return ret;
+ }
+
+ i2c_set_clientdata(i2c, wm8580);
+
+ of_id = of_match_device(wm8580_of_match, &i2c->dev);
+ if (of_id)
+ wm8580->drvdata = of_id->data;
+
+ if (!wm8580->drvdata) {
+ dev_err(&i2c->dev, "failed to find driver data\n");
+ return -EINVAL;
+ }
+
+ ret = devm_snd_soc_register_component(&i2c->dev,
+ &soc_component_dev_wm8580, wm8580_dai, ARRAY_SIZE(wm8580_dai));
+
+ return ret;
+}
+
+static const struct i2c_device_id wm8580_i2c_id[] = {
+ { "wm8580", (kernel_ulong_t)&wm8580_data },
+ { "wm8581", (kernel_ulong_t)&wm8581_data },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8580_i2c_id);
+
+static struct i2c_driver wm8580_i2c_driver = {
+ .driver = {
+ .name = "wm8580",
+ .of_match_table = wm8580_of_match,
+ },
+ .probe = wm8580_i2c_probe,
+ .id_table = wm8580_i2c_id,
+};
+
+module_i2c_driver(wm8580_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC WM8580 driver");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 12:17:24 +0000