*
* TODO:
* - TDM mode configuration.
- * - Mic detect.
* - Digital microphone support.
- * - Interrupt support (mic detect and sequencer).
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
+#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/core.h>
+#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include <sound/soc.h>
-#include <sound/soc-dapm.h>
#include <sound/initval.h>
+#include <sound/wm8903.h>
#include "wm8903.h"
};
struct wm8903_priv {
- struct snd_soc_codec codec;
+
u16 reg_cache[ARRAY_SIZE(wm8903_reg_defaults)];
int sysclk;
+ int irq;
/* Reference counts */
int class_w_users;
int playback_active;
int capture_active;
+ struct completion wseq;
+
+ struct snd_soc_jack *mic_jack;
+ int mic_det;
+ int mic_short;
+ int mic_last_report;
+ int mic_delay;
+
struct snd_pcm_substream *master_substream;
struct snd_pcm_substream *slave_substream;
};
static int wm8903_run_sequence(struct snd_soc_codec *codec, unsigned int start)
{
u16 reg[5];
- struct i2c_client *i2c = codec->control_data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
BUG_ON(start > 48);
- /* Enable the sequencer */
+ /* Enable the sequencer if it's not already on */
reg[0] = snd_soc_read(codec, WM8903_WRITE_SEQUENCER_0);
- reg[0] |= WM8903_WSEQ_ENA;
- snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0, reg[0]);
+ snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0,
+ reg[0] | WM8903_WSEQ_ENA);
- dev_dbg(&i2c->dev, "Starting sequence at %d\n", start);
+ dev_dbg(codec->dev, "Starting sequence at %d\n", start);
snd_soc_write(codec, WM8903_WRITE_SEQUENCER_3,
start | WM8903_WSEQ_START);
/* Wait for it to complete. If we have the interrupt wired up then
- * we could block waiting for an interrupt, though polling may still
- * be desirable for diagnostic purposes.
+ * that will break us out of the poll early.
*/
do {
- msleep(10);
+ wait_for_completion_timeout(&wm8903->wseq,
+ msecs_to_jiffies(10));
reg[4] = snd_soc_read(codec, WM8903_WRITE_SEQUENCER_4);
} while (reg[4] & WM8903_WSEQ_BUSY);
- dev_dbg(&i2c->dev, "Sequence complete\n");
+ dev_dbg(codec->dev, "Sequence complete\n");
- /* Disable the sequencer again */
- snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0,
- reg[0] & ~WM8903_WSEQ_ENA);
+ /* Disable the sequencer again if we enabled it */
+ snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0, reg[0]);
return 0;
}
{
struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
struct snd_soc_codec *codec = widget->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
- struct i2c_client *i2c = codec->control_data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
u16 reg;
int ret;
/* Turn it off if we're about to enable bypass */
if (ucontrol->value.integer.value[0]) {
if (wm8903->class_w_users == 0) {
- dev_dbg(&i2c->dev, "Disabling Class W\n");
+ dev_dbg(codec->dev, "Disabling Class W\n");
snd_soc_write(codec, WM8903_CLASS_W_0, reg &
~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
}
/* If we've just disabled the last bypass path turn Class W on */
if (!ucontrol->value.integer.value[0]) {
if (wm8903->class_w_users == 1) {
- dev_dbg(&i2c->dev, "Enabling Class W\n");
+ dev_dbg(codec->dev, "Enabling Class W\n");
snd_soc_write(codec, WM8903_CLASS_W_0, reg |
WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
}
wm8903->class_w_users--;
}
- dev_dbg(&i2c->dev, "Bypass use count now %d\n",
+ dev_dbg(codec->dev, "Bypass use count now %d\n",
wm8903->class_w_users);
return ret;
static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
+static const char *hpf_mode_text[] = {
+ "Hi-fi", "Voice 1", "Voice 2", "Voice 3"
+};
+
+static const struct soc_enum hpf_mode =
+ SOC_ENUM_SINGLE(WM8903_ADC_DIGITAL_0, 5, 4, hpf_mode_text);
+
+static const char *osr_text[] = {
+ "Low power", "High performance"
+};
+
+static const struct soc_enum adc_osr =
+ SOC_ENUM_SINGLE(WM8903_ANALOGUE_ADC_0, 0, 2, osr_text);
+
+static const struct soc_enum dac_osr =
+ SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 0, 2, osr_text);
+
static const char *drc_slope_text[] = {
"1", "1/2", "1/4", "1/8", "1/16", "0"
};
6, 1, 0),
/* ADCs */
+SOC_ENUM("ADC OSR", adc_osr),
+SOC_SINGLE("HPF Switch", WM8903_ADC_DIGITAL_0, 4, 1, 0),
+SOC_ENUM("HPF Mode", hpf_mode),
SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
12, 0, digital_sidetone_tlv),
/* DAC */
+SOC_ENUM("DAC OSR", dac_osr),
SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
SOC_ENUM("DAC Soft Mute Rate", soft_mute),
static int wm8903_add_widgets(struct snd_soc_codec *codec)
{
- snd_soc_dapm_new_controls(codec, wm8903_dapm_widgets,
- ARRAY_SIZE(wm8903_dapm_widgets));
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
- snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
+ snd_soc_dapm_new_controls(dapm, wm8903_dapm_widgets,
+ ARRAY_SIZE(wm8903_dapm_widgets));
+ snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
return 0;
}
static int wm8903_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
- struct i2c_client *i2c = codec->control_data;
u16 reg, reg2;
switch (level) {
break;
case SND_SOC_BIAS_STANDBY:
- if (codec->bias_level == SND_SOC_BIAS_OFF) {
+ if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
snd_soc_write(codec, WM8903_CLOCK_RATES_2,
WM8903_CLK_SYS_ENA);
/* By default no bypass paths are enabled so
* enable Class W support.
*/
- dev_dbg(&i2c->dev, "Enabling Class W\n");
+ dev_dbg(codec->dev, "Enabling Class W\n");
snd_soc_write(codec, WM8903_CLASS_W_0, reg |
WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
}
break;
}
- codec->bias_level = level;
+ codec->dapm.bias_level = level;
return 0;
}
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
wm8903->sysclk = freq;
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
- struct i2c_client *i2c = codec->control_data;
+ struct snd_soc_codec *codec = rtd->codec;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
struct snd_pcm_runtime *master_runtime;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
if (wm8903->master_substream) {
master_runtime = wm8903->master_substream->runtime;
- dev_dbg(&i2c->dev, "Constraining to %d bits\n",
+ dev_dbg(codec->dev, "Constraining to %d bits\n",
master_runtime->sample_bits);
snd_pcm_hw_constraint_minmax(substream->runtime,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
+ struct snd_soc_codec *codec = rtd->codec;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
wm8903->playback_active--;
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
- struct wm8903_priv *wm8903 = codec->private_data;
- struct i2c_client *i2c = codec->control_data;
+ struct snd_soc_codec *codec =rtd->codec;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
int fs = params_rate(params);
int bclk;
int bclk_div;
u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
if (substream == wm8903->slave_substream) {
- dev_dbg(&i2c->dev, "Ignoring hw_params for slave substream\n");
+ dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
return 0;
}
switch (sample_rates[dsp_config].rate) {
case 88200:
case 96000:
- dev_err(&i2c->dev, "%dHz unsupported by ADC\n",
+ dev_err(codec->dev, "%dHz unsupported by ADC\n",
fs);
return -EINVAL;
break;
}
- dev_dbg(&i2c->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
+ dev_dbg(codec->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
clock1 &= ~WM8903_SAMPLE_RATE_MASK;
clock1 |= sample_rates[dsp_config].value;
return -EINVAL;
}
- dev_dbg(&i2c->dev, "MCLK = %dHz, target sample rate = %dHz\n",
+ dev_dbg(codec->dev, "MCLK = %dHz, target sample rate = %dHz\n",
wm8903->sysclk, fs);
/* We may not have an MCLK which allows us to generate exactly
clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
- dev_dbg(&i2c->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
+ dev_dbg(codec->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
clk_sys_ratios[clk_config].rate,
clk_sys_ratios[clk_config].mode,
clk_sys_ratios[clk_config].div);
- dev_dbg(&i2c->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
+ dev_dbg(codec->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
/* We may not get quite the right frequency if using
* approximate clocks so look for the closest match that is
aif2 &= ~WM8903_BCLK_DIV_MASK;
aif3 &= ~WM8903_LRCLK_RATE_MASK;
- dev_dbg(&i2c->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
+ dev_dbg(codec->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
bclk_divs[bclk_div].ratio / 10, bclk,
(clk_sys * 10) / bclk_divs[bclk_div].ratio);
return 0;
}
+/**
+ * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ
+ *
+ * @codec: WM8903 codec
+ * @jack: jack to report detection events on
+ * @det: value to report for presence detection
+ * @shrt: value to report for short detection
+ *
+ * Enable microphone detection via IRQ on the WM8903. If GPIOs are
+ * being used to bring out signals to the processor then only platform
+ * data configuration is needed for WM8903 and processor GPIOs should
+ * be configured using snd_soc_jack_add_gpios() instead.
+ *
+ * The current threasholds for detection should be configured using
+ * micdet_cfg in the platform data. Using this function will force on
+ * the microphone bias for the device.
+ */
+int wm8903_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
+ int det, int shrt)
+{
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
+
+ dev_dbg(codec->dev, "Enabling microphone detection: %x %x\n",
+ det, shrt);
+
+ /* Store the configuration */
+ wm8903->mic_jack = jack;
+ wm8903->mic_det = det;
+ wm8903->mic_short = shrt;
+
+ /* Enable interrupts we've got a report configured for */
+ if (det)
+ irq_mask &= ~WM8903_MICDET_EINT;
+ if (shrt)
+ irq_mask &= ~WM8903_MICSHRT_EINT;
+
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
+ WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
+ irq_mask);
+
+ if (det && shrt) {
+ /* Enable mic detection, this may not have been set through
+ * platform data (eg, if the defaults are OK). */
+ snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
+ WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
+ snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
+ WM8903_MICDET_ENA, WM8903_MICDET_ENA);
+ } else {
+ snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
+ WM8903_MICDET_ENA, 0);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wm8903_mic_detect);
+
+static irqreturn_t wm8903_irq(int irq, void *data)
+{
+ struct snd_soc_codec *codec = data;
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int mic_report;
+ int int_pol;
+ int int_val = 0;
+ int mask = ~snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1_MASK);
+
+ int_val = snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1) & mask;
+
+ if (int_val & WM8903_WSEQ_BUSY_EINT) {
+ dev_dbg(codec->dev, "Write sequencer done\n");
+ complete(&wm8903->wseq);
+ }
+
+ /*
+ * The rest is microphone jack detection. We need to manually
+ * invert the polarity of the interrupt after each event - to
+ * simplify the code keep track of the last state we reported
+ * and just invert the relevant bits in both the report and
+ * the polarity register.
+ */
+ mic_report = wm8903->mic_last_report;
+ int_pol = snd_soc_read(codec, WM8903_INTERRUPT_POLARITY_1);
+
+ if (int_val & WM8903_MICSHRT_EINT) {
+ dev_dbg(codec->dev, "Microphone short (pol=%x)\n", int_pol);
+
+ mic_report ^= wm8903->mic_short;
+ int_pol ^= WM8903_MICSHRT_INV;
+ }
+
+ if (int_val & WM8903_MICDET_EINT) {
+ dev_dbg(codec->dev, "Microphone detect (pol=%x)\n", int_pol);
+
+ mic_report ^= wm8903->mic_det;
+ int_pol ^= WM8903_MICDET_INV;
+
+ msleep(wm8903->mic_delay);
+ }
+
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_POLARITY_1,
+ WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
+
+ snd_soc_jack_report(wm8903->mic_jack, mic_report,
+ wm8903->mic_short | wm8903->mic_det);
+
+ wm8903->mic_last_report = mic_report;
+
+ return IRQ_HANDLED;
+}
+
#define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
SNDRV_PCM_RATE_11025 | \
SNDRV_PCM_RATE_16000 | \
.set_sysclk = wm8903_set_dai_sysclk,
};
-struct snd_soc_dai wm8903_dai = {
- .name = "WM8903",
+static struct snd_soc_dai_driver wm8903_dai = {
+ .name = "wm8903-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.ops = &wm8903_dai_ops,
.symmetric_rates = 1,
};
-EXPORT_SYMBOL_GPL(wm8903_dai);
-static int wm8903_suspend(struct platform_device *pdev, pm_message_t state)
+static int wm8903_suspend(struct snd_soc_codec *codec, pm_message_t state)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
-static int wm8903_resume(struct platform_device *pdev)
+static int wm8903_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
- struct i2c_client *i2c = codec->control_data;
int i;
u16 *reg_cache = codec->reg_cache;
u16 *tmp_cache = kmemdup(reg_cache, sizeof(wm8903_reg_defaults),
/* Bring the codec back up to standby first to minimise pop/clicks */
wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- wm8903_set_bias_level(codec, codec->suspend_bias_level);
/* Sync back everything else */
if (tmp_cache) {
snd_soc_write(codec, i, tmp_cache[i]);
kfree(tmp_cache);
} else {
- dev_err(&i2c->dev, "Failed to allocate temporary cache\n");
+ dev_err(codec->dev, "Failed to allocate temporary cache\n");
}
return 0;
}
-static struct snd_soc_codec *wm8903_codec;
-
-static __devinit int wm8903_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int wm8903_probe(struct snd_soc_codec *codec)
{
- struct wm8903_priv *wm8903;
- struct snd_soc_codec *codec;
- int ret;
+ struct wm8903_platform_data *pdata = dev_get_platdata(codec->dev);
+ struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
+ int ret, i;
+ int trigger, irq_pol;
u16 val;
- wm8903 = kzalloc(sizeof(struct wm8903_priv), GFP_KERNEL);
- if (wm8903 == NULL)
- return -ENOMEM;
-
- codec = &wm8903->codec;
-
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- codec->dev = &i2c->dev;
- codec->name = "WM8903";
- codec->owner = THIS_MODULE;
- codec->bias_level = SND_SOC_BIAS_OFF;
- codec->set_bias_level = wm8903_set_bias_level;
- codec->dai = &wm8903_dai;
- codec->num_dai = 1;
- codec->reg_cache_size = ARRAY_SIZE(wm8903->reg_cache);
- codec->reg_cache = &wm8903->reg_cache[0];
- codec->private_data = wm8903;
- codec->volatile_register = wm8903_volatile_register;
-
- i2c_set_clientdata(i2c, codec);
- codec->control_data = i2c;
+ init_completion(&wm8903->wseq);
ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
if (ret != 0) {
- dev_err(&i2c->dev, "Failed to set cache I/O: %d\n", ret);
- goto err;
+ dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+ return ret;
}
val = snd_soc_read(codec, WM8903_SW_RESET_AND_ID);
if (val != wm8903_reg_defaults[WM8903_SW_RESET_AND_ID]) {
- dev_err(&i2c->dev,
+ dev_err(codec->dev,
"Device with ID register %x is not a WM8903\n", val);
return -ENODEV;
}
val = snd_soc_read(codec, WM8903_REVISION_NUMBER);
- dev_info(&i2c->dev, "WM8903 revision %d\n",
+ dev_info(codec->dev, "WM8903 revision %d\n",
val & WM8903_CHIP_REV_MASK);
wm8903_reset(codec);
+ /* Set up GPIOs and microphone detection */
+ if (pdata) {
+ for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
+ if (!pdata->gpio_cfg[i])
+ continue;
+
+ snd_soc_write(codec, WM8903_GPIO_CONTROL_1 + i,
+ pdata->gpio_cfg[i] & 0xffff);
+ }
+
+ snd_soc_write(codec, WM8903_MIC_BIAS_CONTROL_0,
+ pdata->micdet_cfg);
+
+ /* Microphone detection needs the WSEQ clock */
+ if (pdata->micdet_cfg)
+ snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
+ WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
+
+ wm8903->mic_delay = pdata->micdet_delay;
+ }
+
+ if (wm8903->irq) {
+ if (pdata && pdata->irq_active_low) {
+ trigger = IRQF_TRIGGER_LOW;
+ irq_pol = WM8903_IRQ_POL;
+ } else {
+ trigger = IRQF_TRIGGER_HIGH;
+ irq_pol = 0;
+ }
+
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_CONTROL,
+ WM8903_IRQ_POL, irq_pol);
+
+ ret = request_threaded_irq(wm8903->irq, NULL, wm8903_irq,
+ trigger | IRQF_ONESHOT,
+ "wm8903", codec);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to request IRQ: %d\n",
+ ret);
+ return ret;
+ }
+
+ /* Enable write sequencer interrupts */
+ snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
+ WM8903_IM_WSEQ_BUSY_EINT, 0);
+ }
+
/* power on device */
wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
val |= WM8903_DAC_MUTEMODE;
snd_soc_write(codec, WM8903_DAC_DIGITAL_1, val);
- wm8903_dai.dev = &i2c->dev;
- wm8903_codec = codec;
-
- ret = snd_soc_register_codec(codec);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
- goto err;
- }
-
- ret = snd_soc_register_dai(&wm8903_dai);
- if (ret != 0) {
- dev_err(&i2c->dev, "Failed to register DAI: %d\n", ret);
- goto err_codec;
- }
-
- return ret;
+ snd_soc_add_controls(codec, wm8903_snd_controls,
+ ARRAY_SIZE(wm8903_snd_controls));
+ wm8903_add_widgets(codec);
-err_codec:
- snd_soc_unregister_codec(codec);
-err:
- wm8903_codec = NULL;
- kfree(wm8903);
return ret;
}
-static __devexit int wm8903_i2c_remove(struct i2c_client *client)
+/* power down chip */
+static int wm8903_remove(struct snd_soc_codec *codec)
{
- struct snd_soc_codec *codec = i2c_get_clientdata(client);
+ wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ return 0;
+}
- snd_soc_unregister_dai(&wm8903_dai);
- snd_soc_unregister_codec(codec);
+static struct snd_soc_codec_driver soc_codec_dev_wm8903 = {
+ .probe = wm8903_probe,
+ .remove = wm8903_remove,
+ .suspend = wm8903_suspend,
+ .resume = wm8903_resume,
+ .set_bias_level = wm8903_set_bias_level,
+ .reg_cache_size = ARRAY_SIZE(wm8903_reg_defaults),
+ .reg_word_size = sizeof(u16),
+ .reg_cache_default = wm8903_reg_defaults,
+ .volatile_register = wm8903_volatile_register,
+};
- wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+static __devinit int wm8903_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct wm8903_priv *wm8903;
+ int ret;
+
+ wm8903 = kzalloc(sizeof(struct wm8903_priv), GFP_KERNEL);
+ if (wm8903 == NULL)
+ return -ENOMEM;
- kfree(codec->private_data);
+ i2c_set_clientdata(i2c, wm8903);
+ wm8903->irq = i2c->irq;
- wm8903_codec = NULL;
- wm8903_dai.dev = NULL;
+ ret = snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_wm8903, &wm8903_dai, 1);
+ if (ret < 0)
+ kfree(wm8903);
+ return ret;
+}
+static __devexit int wm8903_i2c_remove(struct i2c_client *client)
+{
+ snd_soc_unregister_codec(&client->dev);
+ kfree(i2c_get_clientdata(client));
return 0;
}
-/* i2c codec control layer */
static const struct i2c_device_id wm8903_i2c_id[] = {
- { "wm8903", 0 },
- { }
+ { "wm8903", 0 },
+ { }
};
MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
static struct i2c_driver wm8903_i2c_driver = {
.driver = {
- .name = "WM8903",
+ .name = "wm8903-codec",
.owner = THIS_MODULE,
},
- .probe = wm8903_i2c_probe,
- .remove = __devexit_p(wm8903_i2c_remove),
+ .probe = wm8903_i2c_probe,
+ .remove = __devexit_p(wm8903_i2c_remove),
.id_table = wm8903_i2c_id,
};
+#endif
-static int wm8903_probe(struct platform_device *pdev)
+static int __init wm8903_modinit(void)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
int ret = 0;
-
- if (!wm8903_codec) {
- dev_err(&pdev->dev, "I2C device not yet probed\n");
- goto err;
- }
-
- socdev->card->codec = wm8903_codec;
-
- /* register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to create pcms\n");
- goto err;
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+ ret = i2c_add_driver(&wm8903_i2c_driver);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register wm8903 I2C driver: %d\n",
+ ret);
}
-
- snd_soc_add_controls(socdev->card->codec, wm8903_snd_controls,
- ARRAY_SIZE(wm8903_snd_controls));
- wm8903_add_widgets(socdev->card->codec);
-
- return ret;
-
-err:
+#endif
return ret;
}
-
-/* power down chip */
-static int wm8903_remove(struct platform_device *pdev)
-{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
- if (codec->control_data)
- wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
-
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-
- return 0;
-}
-
-struct snd_soc_codec_device soc_codec_dev_wm8903 = {
- .probe = wm8903_probe,
- .remove = wm8903_remove,
- .suspend = wm8903_suspend,
- .resume = wm8903_resume,
-};
-EXPORT_SYMBOL_GPL(soc_codec_dev_wm8903);
-
-static int __init wm8903_modinit(void)
-{
- return i2c_add_driver(&wm8903_i2c_driver);
-}
module_init(wm8903_modinit);
static void __exit wm8903_exit(void)
{
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
i2c_del_driver(&wm8903_i2c_driver);
+#endif
}
module_exit(wm8903_exit);
projects / deliverable / linux.git / blobdiff