summaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/rt5514.c
diff options
context:
space:
mode:
authorOder Chiou <oder_chiou@realtek.com>2016-06-06 18:33:31 +0800
committerMark Brown <broonie@kernel.org>2016-06-07 16:22:31 +0100
commit6eebf35b0e4a02248f7dba5d1719c6896afe41ba (patch)
tree9bc744792d910a4cb499d1d5bd1c0b1bc3206d7a /sound/soc/codecs/rt5514.c
parent1a695a905c18548062509178b98bc91e67510864 (diff)
downloadlinux-6eebf35b0e4a02248f7dba5d1719c6896afe41ba.tar.bz2
ASoC: rt5514: add rt5514 SPI driver
The device has multiple control interfaces, I2C and SPI. The I2C interface mainly controls the register settings of codec. The SPI interface is in order to provide the high speed transmission of data. For example, high bandwidth memory read/write of DSP. The patch adds the rt5514 SPI driver for loading the firmware of DSP and retrieving the voice data from DSP after the system is waked up by specific voice. Signed-off-by: Oder Chiou <oder_chiou@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/rt5514.c')
-rw-r--r--sound/soc/codecs/rt5514.c136
1 files changed, 134 insertions, 2 deletions
diff --git a/sound/soc/codecs/rt5514.c b/sound/soc/codecs/rt5514.c
index 879bf60f4965..ecb09891b662 100644
--- a/sound/soc/codecs/rt5514.c
+++ b/sound/soc/codecs/rt5514.c
@@ -30,6 +30,9 @@
#include "rl6231.h"
#include "rt5514.h"
+#if defined(CONFIG_SND_SOC_RT5514_SPI)
+#include "rt5514-spi.h"
+#endif
static const struct reg_sequence rt5514_i2c_patch[] = {
{0x1800101c, 0x00000000},
@@ -110,6 +113,35 @@ static const struct reg_default rt5514_reg[] = {
{RT5514_VENDOR_ID2, 0x10ec5514},
};
+static void rt5514_enable_dsp_prepare(struct rt5514_priv *rt5514)
+{
+ /* Reset */
+ regmap_write(rt5514->i2c_regmap, 0x18002000, 0x000010ec);
+ /* LDO_I_limit */
+ regmap_write(rt5514->i2c_regmap, 0x18002200, 0x00028604);
+ /* I2C bypass enable */
+ regmap_write(rt5514->i2c_regmap, 0xfafafafa, 0x00000001);
+ /* mini-core reset */
+ regmap_write(rt5514->i2c_regmap, 0x18002f00, 0x0005514b);
+ regmap_write(rt5514->i2c_regmap, 0x18002f00, 0x00055149);
+ /* I2C bypass disable */
+ regmap_write(rt5514->i2c_regmap, 0xfafafafa, 0x00000000);
+ /* PIN config */
+ regmap_write(rt5514->i2c_regmap, 0x18002070, 0x00000040);
+ /* PLL3(QN)=RCOSC*(10+2) */
+ regmap_write(rt5514->i2c_regmap, 0x18002240, 0x0000000a);
+ /* PLL3 source=RCOSC, fsi=rt_clk */
+ regmap_write(rt5514->i2c_regmap, 0x18002100, 0x0000000b);
+ /* Power on RCOSC, pll3 */
+ regmap_write(rt5514->i2c_regmap, 0x18002004, 0x00808b81);
+ /* DSP clk source = pll3, ENABLE DSP clk */
+ regmap_write(rt5514->i2c_regmap, 0x18002f08, 0x00000005);
+ /* Enable DSP clk auto switch */
+ regmap_write(rt5514->i2c_regmap, 0x18001114, 0x00000001);
+ /* Reduce DSP power */
+ regmap_write(rt5514->i2c_regmap, 0x18001118, 0x00000001);
+}
+
static bool rt5514_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
@@ -248,6 +280,74 @@ static const DECLARE_TLV_DB_RANGE(bst_tlv,
static const DECLARE_TLV_DB_SCALE(adc_vol_tlv, -17625, 375, 0);
+static int rt5514_dsp_voice_wake_up_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+ struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
+
+ ucontrol->value.integer.value[0] = rt5514->dsp_enabled;
+
+ return 0;
+}
+
+static int rt5514_dsp_voice_wake_up_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+ struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
+ struct snd_soc_codec *codec = rt5514->codec;
+ const struct firmware *fw = NULL;
+
+ if (ucontrol->value.integer.value[0] == rt5514->dsp_enabled)
+ return 0;
+
+ if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
+ rt5514->dsp_enabled = ucontrol->value.integer.value[0];
+
+ if (rt5514->dsp_enabled) {
+ rt5514_enable_dsp_prepare(rt5514);
+
+ request_firmware(&fw, RT5514_FIRMWARE1, codec->dev);
+ if (fw) {
+#if defined(CONFIG_SND_SOC_RT5514_SPI)
+ rt5514_spi_burst_write(0x4ff60000, fw->data,
+ ((fw->size/8)+1)*8);
+#else
+ dev_err(codec->dev, "There is no SPI driver for"
+ " loading the firmware\n");
+#endif
+ release_firmware(fw);
+ fw = NULL;
+ }
+
+ request_firmware(&fw, RT5514_FIRMWARE2, codec->dev);
+ if (fw) {
+#if defined(CONFIG_SND_SOC_RT5514_SPI)
+ rt5514_spi_burst_write(0x4ffc0000, fw->data,
+ ((fw->size/8)+1)*8);
+#else
+ dev_err(codec->dev, "There is no SPI driver for"
+ " loading the firmware\n");
+#endif
+ release_firmware(fw);
+ fw = NULL;
+ }
+
+ /* DSP run */
+ regmap_write(rt5514->i2c_regmap, 0x18002f00,
+ 0x00055148);
+ } else {
+ regmap_multi_reg_write(rt5514->i2c_regmap,
+ rt5514_i2c_patch, ARRAY_SIZE(rt5514_i2c_patch));
+ regcache_mark_dirty(rt5514->regmap);
+ regcache_sync(rt5514->regmap);
+ }
+ }
+
+ return 0;
+}
+
static const struct snd_kcontrol_new rt5514_snd_controls[] = {
SOC_DOUBLE_TLV("MIC Boost Volume", RT5514_ANA_CTRL_MICBST,
RT5514_SEL_BSTL_SFT, RT5514_SEL_BSTR_SFT, 8, 0, bst_tlv),
@@ -257,6 +357,8 @@ static const struct snd_kcontrol_new rt5514_snd_controls[] = {
SOC_DOUBLE_R_TLV("ADC2 Capture Volume", RT5514_DOWNFILTER1_CTRL1,
RT5514_DOWNFILTER1_CTRL2, RT5514_AD_GAIN_SFT, 127, 0,
adc_vol_tlv),
+ SOC_SINGLE_EXT("DSP Voice Wake Up", SND_SOC_NOPM, 0, 1, 0,
+ rt5514_dsp_voice_wake_up_get, rt5514_dsp_voice_wake_up_put),
};
/* ADC Mixer*/
@@ -365,6 +467,35 @@ static int rt5514_is_sys_clk_from_pll(struct snd_soc_dapm_widget *source,
return 0;
}
+static int rt5514_pre_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
+ struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ /**
+ * If the DSP is enabled in start of recording, the DSP
+ * should be disabled, and sync back to normal recording
+ * settings to make sure recording properly.
+ */
+ if (rt5514->dsp_enabled) {
+ rt5514->dsp_enabled = 0;
+ regmap_multi_reg_write(rt5514->i2c_regmap,
+ rt5514_i2c_patch, ARRAY_SIZE(rt5514_i2c_patch));
+ regcache_mark_dirty(rt5514->regmap);
+ regcache_sync(rt5514->regmap);
+ }
+ break;
+
+ default:
+ return 0;
+ }
+
+ return 0;
+}
+
static const struct snd_soc_dapm_widget rt5514_dapm_widgets[] = {
/* Input Lines */
SND_SOC_DAPM_INPUT("DMIC1L"),
@@ -472,6 +603,8 @@ static const struct snd_soc_dapm_widget rt5514_dapm_widgets[] = {
/* Audio Interface */
SND_SOC_DAPM_AIF_OUT("AIF1TX", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0),
+
+ SND_SOC_DAPM_PRE("DAPM Pre", rt5514_pre_event),
};
static const struct snd_soc_dapm_route rt5514_dapm_routes[] = {
@@ -871,7 +1004,6 @@ static const struct regmap_config rt5514_i2c_regmap = {
.reg_bits = 32,
.val_bits = 32,
- .max_register = RT5514_DSP_MAPPING | RT5514_VENDOR_ID2,
.readable_reg = rt5514_i2c_readable_register,
.cache_type = REGCACHE_NONE,
@@ -944,7 +1076,7 @@ static int rt5514_i2c_probe(struct i2c_client *i2c,
return -ENODEV;
}
- ret = regmap_register_patch(rt5514->i2c_regmap, rt5514_i2c_patch,
+ ret = regmap_multi_reg_write(rt5514->i2c_regmap, rt5514_i2c_patch,
ARRAY_SIZE(rt5514_i2c_patch));
if (ret != 0)
dev_warn(&i2c->dev, "Failed to apply i2c_regmap patch: %d\n",