summaryrefslogtreecommitdiff
path: root/sound/soc/codecs/tlv320aic31xx.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/tlv320aic31xx.c')
-rw-r--r--sound/soc/codecs/tlv320aic31xx.c131
1 files changed, 114 insertions, 17 deletions
diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 0847302121f6..4362c2c06ce8 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -12,6 +12,7 @@
* and mono/stereo Class-D speaker driver.
*/
+#include <linux/unaligned.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
@@ -22,8 +23,8 @@
#include <linux/gpio/consumer.h>
#include <linux/regulator/consumer.h>
#include <linux/acpi.h>
+#include <linux/firmware.h>
#include <linux/of.h>
-#include <linux/of_gpio.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/jack.h>
@@ -798,7 +799,7 @@ static int aic31xx_add_controls(struct snd_soc_component *component)
static int aic31xx_add_widgets(struct snd_soc_component *component)
{
- struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
int ret = 0;
@@ -894,7 +895,7 @@ static int aic31xx_setup_pll(struct snd_soc_component *component,
dev_err(component->dev,
"%s: Sample rate (%u) and format not supported\n",
__func__, params_rate(params));
- /* See bellow for details how fix this. */
+ /* See below for details on how to fix this. */
return -EINVAL;
}
if (bclk_score != 0) {
@@ -1029,7 +1030,7 @@ static int aic31xx_dac_mute(struct snd_soc_dai *codec_dai, int mute,
static int aic31xx_clock_master_routes(struct snd_soc_component *component,
unsigned int fmt)
{
- struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);
int ret;
@@ -1208,7 +1209,7 @@ static int aic31xx_regulator_event(struct notifier_block *nb,
* supplies was disabled.
*/
if (aic31xx->gpio_reset)
- gpiod_set_value(aic31xx->gpio_reset, 1);
+ gpiod_set_value_cansleep(aic31xx->gpio_reset, 1);
regcache_mark_dirty(aic31xx->regmap);
dev_dbg(aic31xx->dev, "## %s: DISABLE received\n", __func__);
@@ -1222,9 +1223,9 @@ static int aic31xx_reset(struct aic31xx_priv *aic31xx)
int ret = 0;
if (aic31xx->gpio_reset) {
- gpiod_set_value(aic31xx->gpio_reset, 1);
+ gpiod_set_value_cansleep(aic31xx->gpio_reset, 1);
ndelay(10); /* At least 10ns */
- gpiod_set_value(aic31xx->gpio_reset, 0);
+ gpiod_set_value_cansleep(aic31xx->gpio_reset, 0);
} else {
ret = regmap_write(aic31xx->regmap, AIC31XX_RESET, 1);
}
@@ -1315,18 +1316,20 @@ static void aic31xx_power_off(struct snd_soc_component *component)
static int aic31xx_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
+ struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
+
dev_dbg(component->dev, "## %s: %d -> %d\n", __func__,
- snd_soc_component_get_bias_level(component), level);
+ snd_soc_dapm_get_bias_level(dapm), level);
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
- if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_STANDBY)
+ if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_STANDBY)
aic31xx_clk_on(component);
break;
case SND_SOC_BIAS_STANDBY:
- switch (snd_soc_component_get_bias_level(component)) {
+ switch (snd_soc_dapm_get_bias_level(dapm)) {
case SND_SOC_BIAS_OFF:
aic31xx_power_on(component);
break;
@@ -1338,7 +1341,7 @@ static int aic31xx_set_bias_level(struct snd_soc_component *component,
}
break;
case SND_SOC_BIAS_OFF:
- if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_STANDBY)
+ if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_STANDBY)
aic31xx_power_off(component);
break;
}
@@ -1639,16 +1642,104 @@ static const struct i2c_device_id aic31xx_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, aic31xx_i2c_id);
+static int tlv320dac3100_fw_load(struct aic31xx_priv *aic31xx,
+ const u8 *data, size_t size)
+{
+ int ret, reg;
+ u16 val16;
+
+ /*
+ * Coefficients firmware binary structure. Multi-byte values are big-endian.
+ *
+ * @0, 16bits: Magic (0xB30C)
+ * @2, 16bits: Version (0x0100 for version 1.0)
+ * @4, 8bits: DAC Processing Block Selection
+ * @5, 62 16-bit values: Page 8 buffer A DAC programmable filter coefficients
+ * @129, 12 16-bit values: Page 9 Buffer A DAC programmable filter coefficients
+ *
+ * Filter coefficients are interpreted as two's complement values
+ * ranging from -32 768 to 32 767. For more details on filter coefficients,
+ * please refer to the TLV320DAC3100 datasheet, tables 6-120 and 6-123.
+ */
+
+ if (size != 153) {
+ dev_err(aic31xx->dev, "firmware size is %zu, expected 153 bytes\n", size);
+ return -EINVAL;
+ }
+
+ /* Check magic */
+ val16 = get_unaligned_be16(data);
+ if (val16 != 0xb30c) {
+ dev_err(aic31xx->dev, "fw magic is 0x%04x expected 0xb30c\n", val16);
+ return -EINVAL;
+ }
+ data += 2;
+
+ /* Check version */
+ val16 = get_unaligned_be16(data);
+ if (val16 != 0x0100) {
+ dev_err(aic31xx->dev, "invalid firmware version 0x%04x! expected 1", val16);
+ return -EINVAL;
+ }
+ data += 2;
+
+ ret = regmap_write(aic31xx->regmap, AIC31XX_DACPRB, *data);
+ if (ret) {
+ dev_err(aic31xx->dev, "failed to write PRB index: err %d\n", ret);
+ return ret;
+ }
+ data += 1;
+
+ /* Page 8 Buffer A coefficients */
+ for (reg = 2; reg < 126; reg++) {
+ ret = regmap_write(aic31xx->regmap, AIC31XX_REG(8, reg), *data);
+ if (ret) {
+ dev_err(aic31xx->dev,
+ "failed to write page 8 filter coefficient %d: err %d\n", reg, ret);
+ return ret;
+ }
+ data++;
+ }
+
+ /* Page 9 Buffer A coefficients */
+ for (reg = 2; reg < 26; reg++) {
+ ret = regmap_write(aic31xx->regmap, AIC31XX_REG(9, reg), *data);
+ if (ret) {
+ dev_err(aic31xx->dev,
+ "failed to write page 9 filter coefficient %d: err %d\n", reg, ret);
+ return ret;
+ }
+ data++;
+ }
+
+ dev_info(aic31xx->dev, "done loading DAC filter coefficients\n");
+
+ return ret;
+}
+
+static int tlv320dac3100_load_coeffs(struct aic31xx_priv *aic31xx,
+ const char *fw_name)
+{
+ const struct firmware *fw;
+ int ret;
+
+ ret = request_firmware(&fw, fw_name, aic31xx->dev);
+ if (ret)
+ return ret;
+
+ ret = tlv320dac3100_fw_load(aic31xx, fw->data, fw->size);
+
+ release_firmware(fw);
+
+ return ret;
+}
+
static int aic31xx_i2c_probe(struct i2c_client *i2c)
{
struct aic31xx_priv *aic31xx;
unsigned int micbias_value = MICBIAS_2_0V;
- const struct i2c_device_id *id = i2c_match_id(aic31xx_i2c_id, i2c);
int i, ret;
- dev_dbg(&i2c->dev, "## %s: %s codec_type = %d\n", __func__,
- id->name, (int)id->driver_data);
-
aic31xx = devm_kzalloc(&i2c->dev, sizeof(*aic31xx), GFP_KERNEL);
if (!aic31xx)
return -ENOMEM;
@@ -1665,7 +1756,7 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c)
aic31xx->dev = &i2c->dev;
aic31xx->irq = i2c->irq;
- aic31xx->codec_type = id->driver_data;
+ aic31xx->codec_type = (uintptr_t)i2c_get_match_data(i2c);
dev_set_drvdata(aic31xx->dev, aic31xx);
@@ -1728,6 +1819,12 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c)
}
}
+ if (aic31xx->codec_type == DAC3100) {
+ ret = tlv320dac3100_load_coeffs(aic31xx, "tlv320dac3100-coeffs.bin");
+ if (ret)
+ dev_warn(aic31xx->dev, "Did not load any filter coefficients\n");
+ }
+
if (aic31xx->codec_type & DAC31XX_BIT)
return devm_snd_soc_register_component(&i2c->dev,
&soc_codec_driver_aic31xx,
@@ -1746,7 +1843,7 @@ static struct i2c_driver aic31xx_i2c_driver = {
.of_match_table = of_match_ptr(tlv320aic31xx_of_match),
.acpi_match_table = ACPI_PTR(aic31xx_acpi_match),
},
- .probe_new = aic31xx_i2c_probe,
+ .probe = aic31xx_i2c_probe,
.id_table = aic31xx_i2c_id,
};
module_i2c_driver(aic31xx_i2c_driver);
generated by cgit (git 2.34.1) at 2025-12-26 01:32:27 +0000