Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[pandora-kernel.git] / sound / soc / codecs / wm8731.c
index 7a20587..d3fd4f2 100644 (file)
@@ -26,6 +26,7 @@
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
 #include <sound/initval.h>
+#include <sound/tlv.h>
 
 #include "wm8731.h"
 
@@ -39,9 +40,6 @@ struct wm8731_priv {
        unsigned int sysclk;
 };
 
-#ifdef CONFIG_SPI_MASTER
-static int wm8731_spi_write(struct spi_device *spi, const char *data, int len);
-#endif
 
 /*
  * wm8731 register cache
@@ -50,60 +48,12 @@ static int wm8731_spi_write(struct spi_device *spi, const char *data, int len);
  * There is no point in caching the reset register
  */
 static const u16 wm8731_reg[WM8731_CACHEREGNUM] = {
-    0x0097, 0x0097, 0x0079, 0x0079,
-    0x000a, 0x0008, 0x009f, 0x000a,
-    0x0000, 0x0000
+       0x0097, 0x0097, 0x0079, 0x0079,
+       0x000a, 0x0008, 0x009f, 0x000a,
+       0x0000, 0x0000
 };
 
-/*
- * read wm8731 register cache
- */
-static inline unsigned int wm8731_read_reg_cache(struct snd_soc_codec *codec,
-       unsigned int reg)
-{
-       u16 *cache = codec->reg_cache;
-       if (reg == WM8731_RESET)
-               return 0;
-       if (reg >= WM8731_CACHEREGNUM)
-               return -1;
-       return cache[reg];
-}
-
-/*
- * write wm8731 register cache
- */
-static inline void wm8731_write_reg_cache(struct snd_soc_codec *codec,
-       u16 reg, unsigned int value)
-{
-       u16 *cache = codec->reg_cache;
-       if (reg >= WM8731_CACHEREGNUM)
-               return;
-       cache[reg] = value;
-}
-
-/*
- * write to the WM8731 register space
- */
-static int wm8731_write(struct snd_soc_codec *codec, unsigned int reg,
-       unsigned int value)
-{
-       u8 data[2];
-
-       /* data is
-        *   D15..D9 WM8731 register offset
-        *   D8...D0 register data
-        */
-       data[0] = (reg << 1) | ((value >> 8) & 0x0001);
-       data[1] = value & 0x00ff;
-
-       wm8731_write_reg_cache(codec, reg, value);
-       if (codec->hw_write(codec->control_data, data, 2) == 2)
-               return 0;
-       else
-               return -EIO;
-}
-
-#define wm8731_reset(c)        wm8731_write(c, WM8731_RESET, 0)
+#define wm8731_reset(c)        snd_soc_write(c, WM8731_RESET, 0)
 
 static const char *wm8731_input_select[] = {"Line In", "Mic"};
 static const char *wm8731_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
@@ -113,20 +63,26 @@ static const struct soc_enum wm8731_enum[] = {
        SOC_ENUM_SINGLE(WM8731_APDIGI, 1, 4, wm8731_deemph),
 };
 
+static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0);
+static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0);
+static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
+
 static const struct snd_kcontrol_new wm8731_snd_controls[] = {
 
-SOC_DOUBLE_R("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V,
-       0, 127, 0),
+SOC_DOUBLE_R_TLV("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V,
+                0, 127, 0, out_tlv),
 SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V,
        7, 1, 0),
 
-SOC_DOUBLE_R("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0),
+SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0,
+                in_tlv),
 SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1),
 
 SOC_SINGLE("Mic Boost (+20dB)", WM8731_APANA, 0, 1, 0),
-SOC_SINGLE("Capture Mic Switch", WM8731_APANA, 1, 1, 1),
+SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1),
 
-SOC_SINGLE("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1),
+SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1,
+              sidetone_tlv),
 
 SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1),
 SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0),
@@ -260,12 +216,12 @@ static int wm8731_hw_params(struct snd_pcm_substream *substream,
        struct snd_soc_device *socdev = rtd->socdev;
        struct snd_soc_codec *codec = socdev->card->codec;
        struct wm8731_priv *wm8731 = codec->private_data;
-       u16 iface = wm8731_read_reg_cache(codec, WM8731_IFACE) & 0xfff3;
+       u16 iface = snd_soc_read(codec, WM8731_IFACE) & 0xfff3;
        int i = get_coeff(wm8731->sysclk, params_rate(params));
        u16 srate = (coeff_div[i].sr << 2) |
                (coeff_div[i].bosr << 1) | coeff_div[i].usb;
 
-       wm8731_write(codec, WM8731_SRATE, srate);
+       snd_soc_write(codec, WM8731_SRATE, srate);
 
        /* bit size */
        switch (params_format(params)) {
@@ -279,7 +235,7 @@ static int wm8731_hw_params(struct snd_pcm_substream *substream,
                break;
        }
 
-       wm8731_write(codec, WM8731_IFACE, iface);
+       snd_soc_write(codec, WM8731_IFACE, iface);
        return 0;
 }
 
@@ -291,7 +247,7 @@ static int wm8731_pcm_prepare(struct snd_pcm_substream *substream,
        struct snd_soc_codec *codec = socdev->card->codec;
 
        /* set active */
-       wm8731_write(codec, WM8731_ACTIVE, 0x0001);
+       snd_soc_write(codec, WM8731_ACTIVE, 0x0001);
 
        return 0;
 }
@@ -306,19 +262,19 @@ static void wm8731_shutdown(struct snd_pcm_substream *substream,
        /* deactivate */
        if (!codec->active) {
                udelay(50);
-               wm8731_write(codec, WM8731_ACTIVE, 0x0);
+               snd_soc_write(codec, WM8731_ACTIVE, 0x0);
        }
 }
 
 static int wm8731_mute(struct snd_soc_dai *dai, int mute)
 {
        struct snd_soc_codec *codec = dai->codec;
-       u16 mute_reg = wm8731_read_reg_cache(codec, WM8731_APDIGI) & 0xfff7;
+       u16 mute_reg = snd_soc_read(codec, WM8731_APDIGI) & 0xfff7;
 
        if (mute)
-               wm8731_write(codec, WM8731_APDIGI, mute_reg | 0x8);
+               snd_soc_write(codec, WM8731_APDIGI, mute_reg | 0x8);
        else
-               wm8731_write(codec, WM8731_APDIGI, mute_reg);
+               snd_soc_write(codec, WM8731_APDIGI, mute_reg);
        return 0;
 }
 
@@ -396,7 +352,7 @@ static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai,
        }
 
        /* set iface */
-       wm8731_write(codec, WM8731_IFACE, iface);
+       snd_soc_write(codec, WM8731_IFACE, iface);
        return 0;
 }
 
@@ -412,12 +368,12 @@ static int wm8731_set_bias_level(struct snd_soc_codec *codec,
                break;
        case SND_SOC_BIAS_STANDBY:
                /* Clear PWROFF, gate CLKOUT, everything else as-is */
-               reg = wm8731_read_reg_cache(codec, WM8731_PWR) & 0xff7f;
-               wm8731_write(codec, WM8731_PWR, reg | 0x0040);
+               reg = snd_soc_read(codec, WM8731_PWR) & 0xff7f;
+               snd_soc_write(codec, WM8731_PWR, reg | 0x0040);
                break;
        case SND_SOC_BIAS_OFF:
-               wm8731_write(codec, WM8731_ACTIVE, 0x0);
-               wm8731_write(codec, WM8731_PWR, 0xffff);
+               snd_soc_write(codec, WM8731_ACTIVE, 0x0);
+               snd_soc_write(codec, WM8731_PWR, 0xffff);
                break;
        }
        codec->bias_level = level;
@@ -457,15 +413,17 @@ struct snd_soc_dai wm8731_dai = {
                .rates = WM8731_RATES,
                .formats = WM8731_FORMATS,},
        .ops = &wm8731_dai_ops,
+       .symmetric_rates = 1,
 };
 EXPORT_SYMBOL_GPL(wm8731_dai);
 
+#ifdef CONFIG_PM
 static int wm8731_suspend(struct platform_device *pdev, pm_message_t state)
 {
        struct snd_soc_device *socdev = platform_get_drvdata(pdev);
        struct snd_soc_codec *codec = socdev->card->codec;
 
-       wm8731_write(codec, WM8731_ACTIVE, 0x0);
+       snd_soc_write(codec, WM8731_ACTIVE, 0x0);
        wm8731_set_bias_level(codec, SND_SOC_BIAS_OFF);
        return 0;
 }
@@ -488,6 +446,10 @@ static int wm8731_resume(struct platform_device *pdev)
        wm8731_set_bias_level(codec, codec->suspend_bias_level);
        return 0;
 }
+#else
+#define wm8731_suspend NULL
+#define wm8731_resume NULL
+#endif
 
 static int wm8731_probe(struct platform_device *pdev)
 {
@@ -547,15 +509,16 @@ struct snd_soc_codec_device soc_codec_dev_wm8731 = {
 };
 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8731);
 
-static int wm8731_register(struct wm8731_priv *wm8731)
+static int wm8731_register(struct wm8731_priv *wm8731,
+                          enum snd_soc_control_type control)
 {
        int ret;
        struct snd_soc_codec *codec = &wm8731->codec;
-       u16 reg;
 
        if (wm8731_codec) {
                dev_err(codec->dev, "Another WM8731 is registered\n");
-               return -EINVAL;
+               ret = -EINVAL;
+               goto err;
        }
 
        mutex_init(&codec->mutex);
@@ -565,8 +528,6 @@ static int wm8731_register(struct wm8731_priv *wm8731)
        codec->private_data = wm8731;
        codec->name = "WM8731";
        codec->owner = THIS_MODULE;
-       codec->read = wm8731_read_reg_cache;
-       codec->write = wm8731_write;
        codec->bias_level = SND_SOC_BIAS_OFF;
        codec->set_bias_level = wm8731_set_bias_level;
        codec->dai = &wm8731_dai;
@@ -576,10 +537,16 @@ static int wm8731_register(struct wm8731_priv *wm8731)
 
        memcpy(codec->reg_cache, wm8731_reg, sizeof(wm8731_reg));
 
+       ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
+       if (ret < 0) {
+               dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+               goto err;
+       }
+
        ret = wm8731_reset(codec);
        if (ret < 0) {
-               dev_err(codec->dev, "Failed to issue reset\n");
-               return ret;
+               dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
+               goto err;
        }
 
        wm8731_dai.dev = codec->dev;
@@ -587,35 +554,36 @@ static int wm8731_register(struct wm8731_priv *wm8731)
        wm8731_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
        /* Latch the update bits */
-       reg = wm8731_read_reg_cache(codec, WM8731_LOUT1V);
-       wm8731_write(codec, WM8731_LOUT1V, reg & ~0x0100);
-       reg = wm8731_read_reg_cache(codec, WM8731_ROUT1V);
-       wm8731_write(codec, WM8731_ROUT1V, reg & ~0x0100);
-       reg = wm8731_read_reg_cache(codec, WM8731_LINVOL);
-       wm8731_write(codec, WM8731_LINVOL, reg & ~0x0100);
-       reg = wm8731_read_reg_cache(codec, WM8731_RINVOL);
-       wm8731_write(codec, WM8731_RINVOL, reg & ~0x0100);
+       snd_soc_update_bits(codec, WM8731_LOUT1V, 0x100, 0);
+       snd_soc_update_bits(codec, WM8731_ROUT1V, 0x100, 0);
+       snd_soc_update_bits(codec, WM8731_LINVOL, 0x100, 0);
+       snd_soc_update_bits(codec, WM8731_RINVOL, 0x100, 0);
 
        /* Disable bypass path by default */
-       reg = wm8731_read_reg_cache(codec, WM8731_APANA);
-       wm8731_write(codec, WM8731_APANA, reg & ~0x4);
+       snd_soc_update_bits(codec, WM8731_APANA, 0x4, 0);
 
        wm8731_codec = codec;
 
        ret = snd_soc_register_codec(codec);
        if (ret != 0) {
                dev_err(codec->dev, "Failed to register codec: %d\n", ret);
-               return ret;
+               goto err;
        }
 
        ret = snd_soc_register_dai(&wm8731_dai);
        if (ret != 0) {
                dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
                snd_soc_unregister_codec(codec);
-               return ret;
+               goto err_codec;
        }
 
        return 0;
+
+err_codec:
+       snd_soc_unregister_codec(codec);
+err:
+       kfree(wm8731);
+       return ret;
 }
 
 static void wm8731_unregister(struct wm8731_priv *wm8731)
@@ -628,30 +596,6 @@ static void wm8731_unregister(struct wm8731_priv *wm8731)
 }
 
 #if defined(CONFIG_SPI_MASTER)
-static int wm8731_spi_write(struct spi_device *spi, const char *data, int len)
-{
-       struct spi_transfer t;
-       struct spi_message m;
-       u8 msg[2];
-
-       if (len <= 0)
-               return 0;
-
-       msg[0] = data[0];
-       msg[1] = data[1];
-
-       spi_message_init(&m);
-       memset(&t, 0, (sizeof t));
-
-       t.tx_buf = &msg[0];
-       t.len = len;
-
-       spi_message_add_tail(&t, &m);
-       spi_sync(spi, &m);
-
-       return len;
-}
-
 static int __devinit wm8731_spi_probe(struct spi_device *spi)
 {
        struct snd_soc_codec *codec;
@@ -663,12 +607,11 @@ static int __devinit wm8731_spi_probe(struct spi_device *spi)
 
        codec = &wm8731->codec;
        codec->control_data = spi;
-       codec->hw_write = (hw_write_t)wm8731_spi_write;
        codec->dev = &spi->dev;
 
        dev_set_drvdata(&spi->dev, wm8731);
 
-       return wm8731_register(wm8731);
+       return wm8731_register(wm8731, SND_SOC_SPI);
 }
 
 static int __devexit wm8731_spi_remove(struct spi_device *spi)
@@ -680,6 +623,21 @@ static int __devexit wm8731_spi_remove(struct spi_device *spi)
        return 0;
 }
 
+#ifdef CONFIG_PM
+static int wm8731_spi_suspend(struct spi_device *spi, pm_message_t msg)
+{
+       return snd_soc_suspend_device(&spi->dev);
+}
+
+static int wm8731_spi_resume(struct spi_device *spi)
+{
+       return snd_soc_resume_device(&spi->dev);
+}
+#else
+#define wm8731_spi_suspend NULL
+#define wm8731_spi_resume NULL
+#endif
+
 static struct spi_driver wm8731_spi_driver = {
        .driver = {
                .name   = "wm8731",
@@ -687,6 +645,8 @@ static struct spi_driver wm8731_spi_driver = {
                .owner  = THIS_MODULE,
        },
        .probe          = wm8731_spi_probe,
+       .suspend        = wm8731_spi_suspend,
+       .resume         = wm8731_spi_resume,
        .remove         = __devexit_p(wm8731_spi_remove),
 };
 #endif /* CONFIG_SPI_MASTER */
@@ -703,14 +663,13 @@ static __devinit int wm8731_i2c_probe(struct i2c_client *i2c,
                return -ENOMEM;
 
        codec = &wm8731->codec;
-       codec->hw_write = (hw_write_t)i2c_master_send;
 
        i2c_set_clientdata(i2c, wm8731);
        codec->control_data = i2c;
 
        codec->dev = &i2c->dev;
 
-       return wm8731_register(wm8731);
+       return wm8731_register(wm8731, SND_SOC_I2C);
 }
 
 static __devexit int wm8731_i2c_remove(struct i2c_client *client)
@@ -720,6 +679,21 @@ static __devexit int wm8731_i2c_remove(struct i2c_client *client)
        return 0;
 }
 
+#ifdef CONFIG_PM
+static int wm8731_i2c_suspend(struct i2c_client *i2c, pm_message_t msg)
+{
+       return snd_soc_suspend_device(&i2c->dev);
+}
+
+static int wm8731_i2c_resume(struct i2c_client *i2c)
+{
+       return snd_soc_resume_device(&i2c->dev);
+}
+#else
+#define wm8731_i2c_suspend NULL
+#define wm8731_i2c_resume NULL
+#endif
+
 static const struct i2c_device_id wm8731_i2c_id[] = {
        { "wm8731", 0 },
        { }
@@ -733,6 +707,8 @@ static struct i2c_driver wm8731_i2c_driver = {
        },
        .probe =    wm8731_i2c_probe,
        .remove =   __devexit_p(wm8731_i2c_remove),
+       .suspend =  wm8731_i2c_suspend,
+       .resume =   wm8731_i2c_resume,
        .id_table = wm8731_i2c_id,
 };
 #endif