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-rw-r--r--sound/soc/codecs/da7210.c225
1 files changed, 187 insertions, 38 deletions
diff --git a/sound/soc/codecs/da7210.c b/sound/soc/codecs/da7210.c
index 5dfdf6e..65e666e 100644
--- a/sound/soc/codecs/da7210.c
+++ b/sound/soc/codecs/da7210.c
@@ -148,6 +148,7 @@
#define DA7210_DAI_EN (1 << 7)
/*PLL_DIV3 bit fields */
+#define DA7210_PLL_DIV_L_MASK (0xF << 0)
#define DA7210_MCLK_RANGE_10_20_MHZ (1 << 4)
#define DA7210_PLL_BYP (1 << 6)
@@ -164,12 +165,16 @@
#define DA7210_PLL_FS_48000 (0xB << 0)
#define DA7210_PLL_FS_88200 (0xE << 0)
#define DA7210_PLL_FS_96000 (0xF << 0)
+#define DA7210_MCLK_DET_EN (0x1 << 5)
+#define DA7210_MCLK_SRM_EN (0x1 << 6)
#define DA7210_PLL_EN (0x1 << 7)
/* SOFTMUTE bit fields */
#define DA7210_RAMP_EN (1 << 6)
/* CONTROL bit fields */
+#define DA7210_REG_EN (1 << 0)
+#define DA7210_BIAS_EN (1 << 2)
#define DA7210_NOISE_SUP_EN (1 << 3)
/* IN_GAIN bit fields */
@@ -208,6 +213,47 @@
#define DA7210_OUT2_OUTMIX_L (1 << 6)
#define DA7210_OUT2_EN (1 << 7)
+struct pll_div {
+ int fref;
+ int fout;
+ u8 div1;
+ u8 div2;
+ u8 div3;
+ u8 mode; /* 0 = slave, 1 = master */
+};
+
+/* PLL dividers table */
+static const struct pll_div da7210_pll_div[] = {
+ /* for MASTER mode, fs = 44.1Khz */
+ { 12000000, 2822400, 0xE8, 0x6C, 0x2, 1}, /* MCLK=12Mhz */
+ { 13000000, 2822400, 0xDF, 0x28, 0xC, 1}, /* MCLK=13Mhz */
+ { 13500000, 2822400, 0xDB, 0x0A, 0xD, 1}, /* MCLK=13.5Mhz */
+ { 14400000, 2822400, 0xD4, 0x5A, 0x2, 1}, /* MCLK=14.4Mhz */
+ { 19200000, 2822400, 0xBB, 0x43, 0x9, 1}, /* MCLK=19.2Mhz */
+ { 19680000, 2822400, 0xB9, 0x6D, 0xA, 1}, /* MCLK=19.68Mhz */
+ { 19800000, 2822400, 0xB8, 0xFB, 0xB, 1}, /* MCLK=19.8Mhz */
+ /* for MASTER mode, fs = 48Khz */
+ { 12000000, 3072000, 0xF3, 0x12, 0x7, 1}, /* MCLK=12Mhz */
+ { 13000000, 3072000, 0xE8, 0xFD, 0x5, 1}, /* MCLK=13Mhz */
+ { 13500000, 3072000, 0xE4, 0x82, 0x3, 1}, /* MCLK=13.5Mhz */
+ { 14400000, 3072000, 0xDD, 0x3A, 0x0, 1}, /* MCLK=14.4Mhz */
+ { 19200000, 3072000, 0xC1, 0xEB, 0x8, 1}, /* MCLK=19.2Mhz */
+ { 19680000, 3072000, 0xBF, 0xEC, 0x0, 1}, /* MCLK=19.68Mhz */
+ { 19800000, 3072000, 0xBF, 0x70, 0x0, 1}, /* MCLK=19.8Mhz */
+ /* for SLAVE mode with SRM */
+ { 12000000, 2822400, 0xED, 0xBF, 0x5, 0}, /* MCLK=12Mhz */
+ { 13000000, 2822400, 0xE4, 0x13, 0x0, 0}, /* MCLK=13Mhz */
+ { 13500000, 2822400, 0xDF, 0xC6, 0x8, 0}, /* MCLK=13.5Mhz */
+ { 14400000, 2822400, 0xD8, 0xCA, 0x1, 0}, /* MCLK=14.4Mhz */
+ { 19200000, 2822400, 0xBE, 0x97, 0x9, 0}, /* MCLK=19.2Mhz */
+ { 19680000, 2822400, 0xBC, 0xAC, 0xD, 0}, /* MCLK=19.68Mhz */
+ { 19800000, 2822400, 0xBC, 0x35, 0xE, 0}, /* MCLK=19.8Mhz */
+};
+
+enum clk_src {
+ DA7210_CLKSRC_MCLK
+};
+
#define DA7210_VERSION "0.0.1"
/*
@@ -630,6 +676,8 @@ static const struct snd_soc_dapm_route da7210_audio_map[] = {
/* Codec private data */
struct da7210_priv {
struct regmap *regmap;
+ unsigned int mclk_rate;
+ int master;
};
static struct reg_default da7210_reg_defaults[] = {
@@ -717,8 +765,9 @@ static int da7210_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
+ struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
u32 dai_cfg1;
- u32 fs, bypass;
+ u32 fs, sysclk;
/* set DAI source to Left and Right ADC */
snd_soc_write(codec, DA7210_DAI_SRC_SEL,
@@ -751,43 +800,43 @@ static int da7210_hw_params(struct snd_pcm_substream *substream,
switch (params_rate(params)) {
case 8000:
fs = DA7210_PLL_FS_8000;
- bypass = DA7210_PLL_BYP;
+ sysclk = 3072000;
break;
case 11025:
fs = DA7210_PLL_FS_11025;
- bypass = 0;
+ sysclk = 2822400;
break;
case 12000:
fs = DA7210_PLL_FS_12000;
- bypass = DA7210_PLL_BYP;
+ sysclk = 3072000;
break;
case 16000:
fs = DA7210_PLL_FS_16000;
- bypass = DA7210_PLL_BYP;
+ sysclk = 3072000;
break;
case 22050:
fs = DA7210_PLL_FS_22050;
- bypass = 0;
+ sysclk = 2822400;
break;
case 32000:
fs = DA7210_PLL_FS_32000;
- bypass = DA7210_PLL_BYP;
+ sysclk = 3072000;
break;
case 44100:
fs = DA7210_PLL_FS_44100;
- bypass = 0;
+ sysclk = 2822400;
break;
case 48000:
fs = DA7210_PLL_FS_48000;
- bypass = DA7210_PLL_BYP;
+ sysclk = 3072000;
break;
case 88200:
fs = DA7210_PLL_FS_88200;
- bypass = 0;
+ sysclk = 2822400;
break;
case 96000:
fs = DA7210_PLL_FS_96000;
- bypass = DA7210_PLL_BYP;
+ sysclk = 3072000;
break;
default:
return -EINVAL;
@@ -797,8 +846,15 @@ static int da7210_hw_params(struct snd_pcm_substream *substream,
snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);
snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_FS_MASK, fs);
- snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP, bypass);
+ if (da7210->mclk_rate && (da7210->mclk_rate != sysclk)) {
+ /* PLL mode, disable PLL bypass */
+ snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP, 0);
+ } else {
+ /* PLL bypass mode, enable PLL bypass */
+ snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP,
+ DA7210_PLL_BYP);
+ }
/* Enable active mode */
snd_soc_update_bits(codec, DA7210_STARTUP1,
DA7210_SC_MST_EN, DA7210_SC_MST_EN);
@@ -812,17 +868,24 @@ static int da7210_hw_params(struct snd_pcm_substream *substream,
static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
{
struct snd_soc_codec *codec = codec_dai->codec;
+ struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
u32 dai_cfg1;
u32 dai_cfg3;
dai_cfg1 = 0x7f & snd_soc_read(codec, DA7210_DAI_CFG1);
dai_cfg3 = 0xfc & snd_soc_read(codec, DA7210_DAI_CFG3);
+ if ((snd_soc_read(codec, DA7210_PLL) & DA7210_PLL_EN) &&
+ (!(snd_soc_read(codec, DA7210_PLL_DIV3) & DA7210_PLL_BYP)))
+ return -EINVAL;
+
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
+ da7210->master = 1;
dai_cfg1 |= DA7210_DAI_MODE_MASTER;
break;
case SND_SOC_DAIFMT_CBS_CFS:
+ da7210->master = 0;
dai_cfg1 |= DA7210_DAI_MODE_SLAVE;
break;
default:
@@ -874,10 +937,114 @@ static int da7210_mute(struct snd_soc_dai *dai, int mute)
#define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+static int da7210_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
+
+ switch (clk_id) {
+ case DA7210_CLKSRC_MCLK:
+ switch (freq) {
+ case 12000000:
+ case 13000000:
+ case 13500000:
+ case 14400000:
+ case 19200000:
+ case 19680000:
+ case 19800000:
+ da7210->mclk_rate = freq;
+ return 0;
+ default:
+ dev_err(codec_dai->dev, "Unsupported MCLK value %d\n",
+ freq);
+ return -EINVAL;
+ }
+ break;
+ default:
+ dev_err(codec_dai->dev, "Unknown clock source %d\n", clk_id);
+ return -EINVAL;
+ }
+}
+
+/**
+ * da7210_set_dai_pll :Configure the codec PLL
+ * @param codec_dai : pointer to codec DAI
+ * @param pll_id : da7210 has only one pll, so pll_id is always zero
+ * @param fref : MCLK frequency, should be < 20MHz
+ * @param fout : FsDM value, Refer page 44 & 45 of datasheet
+ * @return int : Zero for success, negative error code for error
+ *
+ * Note: Supported PLL input frequencies are 12MHz, 13MHz, 13.5MHz, 14.4MHz,
+ * 19.2MHz, 19.6MHz and 19.8MHz
+ */
+static int da7210_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+ int source, unsigned int fref, unsigned int fout)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
+
+ u8 pll_div1, pll_div2, pll_div3, cnt;
+
+ /* In slave mode, there is only one set of divisors */
+ if (!da7210->master)
+ fout = 2822400;
+
+ /* Search pll div array for correct divisors */
+ for (cnt = 0; cnt < ARRAY_SIZE(da7210_pll_div); cnt++) {
+ /* check fref */
+ if (fref == da7210_pll_div[cnt].fref) {
+ /* check mode */
+ if (da7210->master == da7210_pll_div[cnt].mode) {
+ /* check fout */
+ if (fout == da7210_pll_div[cnt].fout) {
+ /* all match, pick up divisors */
+ pll_div1 = da7210_pll_div[cnt].div1;
+ pll_div2 = da7210_pll_div[cnt].div2;
+ pll_div3 = da7210_pll_div[cnt].div3;
+ break;
+ }
+ }
+ }
+ }
+ if (cnt >= ARRAY_SIZE(da7210_pll_div))
+ goto err;
+
+ /* Disable active mode */
+ snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);
+ /* Write PLL dividers */
+ snd_soc_write(codec, DA7210_PLL_DIV1, pll_div1);
+ snd_soc_write(codec, DA7210_PLL_DIV2, pll_div2);
+ snd_soc_update_bits(codec, DA7210_PLL_DIV3,
+ DA7210_PLL_DIV_L_MASK, pll_div3);
+
+ if (da7210->master) {
+ /* In master mode, no need to enable SRM */
+ snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN,
+ DA7210_PLL_EN);
+ } else {
+ /* In slave mode, enable SRM and PLL */
+ snd_soc_update_bits(codec, DA7210_PLL,
+ (DA7210_PLL_EN | DA7210_MCLK_SRM_EN |
+ DA7210_MCLK_DET_EN),
+ (DA7210_PLL_EN | DA7210_MCLK_SRM_EN |
+ DA7210_MCLK_DET_EN));
+ }
+ /* Enable active mode */
+ snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN,
+ DA7210_SC_MST_EN);
+ return 0;
+err:
+ dev_err(codec_dai->dev, "Unsupported PLL input frequency %d\n", fref);
+ return -EINVAL;
+}
+
/* DAI operations */
static const struct snd_soc_dai_ops da7210_dai_ops = {
.hw_params = da7210_hw_params,
.set_fmt = da7210_set_dai_fmt,
+ .set_sysclk = da7210_set_dai_sysclk,
+ .set_pll = da7210_set_dai_pll,
.digital_mute = da7210_mute,
};
@@ -917,17 +1084,11 @@ static int da7210_probe(struct snd_soc_codec *codec)
return ret;
}
- /* FIXME
- *
- * This driver use fixed value here
- * And below settings expects MCLK = 12.288MHz
- *
- * When you select different MCLK, please check...
- * DA7210_PLL_DIV1 val
- * DA7210_PLL_DIV2 val
- * DA7210_PLL_DIV3 val
- * DA7210_PLL_DIV3 :: DA7210_MCLK_RANGExxx
- */
+ da7210->mclk_rate = 0; /* This will be set from set_sysclk() */
+ da7210->master = 0; /* This will be set from set_fmt() */
+
+ /* Enable internal regulator & bias current */
+ snd_soc_write(codec, DA7210_CONTROL, DA7210_REG_EN | DA7210_BIAS_EN);
/*
* ADC settings
@@ -1002,24 +1163,12 @@ static int da7210_probe(struct snd_soc_codec *codec)
/* Enable Aux2 */
snd_soc_write(codec, DA7210_AUX2, DA7210_AUX2_EN);
+ /* Set PLL Master clock range 10-20 MHz */
+ snd_soc_write(codec, DA7210_PLL_DIV3, DA7210_MCLK_RANGE_10_20_MHZ);
+
/* Diable PLL and bypass it */
snd_soc_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);
- /*
- * If 48kHz sound came, it use bypass mode,
- * and when it is 44.1kHz, it use PLL.
- *
- * This time, this driver sets PLL always ON
- * and controls bypass/PLL mode by switching
- * DA7210_PLL_DIV3 :: DA7210_PLL_BYP bit.
- * see da7210_hw_params
- */
- snd_soc_write(codec, DA7210_PLL_DIV1, 0xE5); /* MCLK = 12.288MHz */
- snd_soc_write(codec, DA7210_PLL_DIV2, 0x99);
- snd_soc_write(codec, DA7210_PLL_DIV3, 0x0A |
- DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
- snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);
-
/* Activate all enabled subsystem */
snd_soc_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);
generated by cgit v0.10.2 at 2024-10-28 13:12:25 (GMT)