#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
+#include <sound/wm8960.h>
#include "wm8960.h"
struct snd_soc_codec_device soc_codec_dev_wm8960;
/* R25 - Power 1 */
+#define WM8960_VMID_MASK 0x180
#define WM8960_VREF 0x40
+/* R26 - Power 2 */
+#define WM8960_PWR2_LOUT1 0x40
+#define WM8960_PWR2_ROUT1 0x20
+#define WM8960_PWR2_OUT3 0x02
+
/* R28 - Anti-pop 1 */
#define WM8960_POBCTRL 0x80
#define WM8960_BUFDCOPEN 0x10
/* R29 - Anti-pop 2 */
#define WM8960_DISOP 0x40
+#define WM8960_DRES_MASK 0x30
/*
* wm8960 register cache
struct wm8960_priv {
u16 reg_cache[WM8960_CACHEREGNUM];
struct snd_soc_codec codec;
+ struct snd_soc_dapm_widget *lout1;
+ struct snd_soc_dapm_widget *rout1;
+ struct snd_soc_dapm_widget *out3;
};
#define wm8960_reset(c) snd_soc_write(c, WM8960_RESET, 0)
&wm8960_routput_mixer[0],
ARRAY_SIZE(wm8960_routput_mixer)),
-SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
- &wm8960_mono_out[0],
- ARRAY_SIZE(wm8960_mono_out)),
-
SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
SND_SOC_DAPM_OUTPUT("OUT3"),
};
+static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
+SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
+ &wm8960_mono_out[0],
+ ARRAY_SIZE(wm8960_mono_out)),
+};
+
+/* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
+static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
+SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
+};
+
static const struct snd_soc_dapm_route audio_paths[] = {
{ "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
{ "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
{ "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
{ "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
- { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
- { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
-
{ "LOUT1 PGA", NULL, "Left Output Mixer" },
{ "ROUT1 PGA", NULL, "Right Output Mixer" },
{ "SPK_LP", NULL, "Left Speaker Output" },
{ "SPK_RN", NULL, "Right Speaker Output" },
{ "SPK_RP", NULL, "Right Speaker Output" },
+};
+
+static const struct snd_soc_dapm_route audio_paths_out3[] = {
+ { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
+ { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
{ "OUT3", NULL, "Mono Output Mixer", }
};
+static const struct snd_soc_dapm_route audio_paths_capless[] = {
+ { "HP_L", NULL, "OUT3 VMID" },
+ { "HP_R", NULL, "OUT3 VMID" },
+
+ { "OUT3 VMID", NULL, "Left Output Mixer" },
+ { "OUT3 VMID", NULL, "Right Output Mixer" },
+};
+
static int wm8960_add_widgets(struct snd_soc_codec *codec)
{
+ struct wm8960_data *pdata = codec->dev->platform_data;
+ struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_dapm_widget *w;
+
snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets,
ARRAY_SIZE(wm8960_dapm_widgets));
snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
+ /* In capless mode OUT3 is used to provide VMID for the
+ * headphone outputs, otherwise it is used as a mono mixer.
+ */
+ if (pdata && pdata->capless) {
+ snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets_capless,
+ ARRAY_SIZE(wm8960_dapm_widgets_capless));
+
+ snd_soc_dapm_add_routes(codec, audio_paths_capless,
+ ARRAY_SIZE(audio_paths_capless));
+ } else {
+ snd_soc_dapm_new_controls(codec, wm8960_dapm_widgets_out3,
+ ARRAY_SIZE(wm8960_dapm_widgets_out3));
+
+ snd_soc_dapm_add_routes(codec, audio_paths_out3,
+ ARRAY_SIZE(audio_paths_out3));
+ }
+
+ /* We need to power up the headphone output stage out of
+ * sequence for capless mode. To save scanning the widget
+ * list each time to find the desired power state do so now
+ * and save the result.
+ */
+ list_for_each_entry(w, &codec->dapm_widgets, list) {
+ if (strcmp(w->name, "LOUT1 PGA") == 0)
+ wm8960->lout1 = w;
+ if (strcmp(w->name, "ROUT1 PGA") == 0)
+ wm8960->rout1 = w;
+ if (strcmp(w->name, "OUT3 VMID") == 0)
+ wm8960->out3 = w;
+ }
+
return 0;
}
return 0;
}
-static int wm8960_set_bias_level(struct snd_soc_codec *codec,
- enum snd_soc_bias_level level)
+static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
{
- struct wm8960_data *pdata = codec->dev->platform_data;
u16 reg;
switch (level) {
if (codec->bias_level == SND_SOC_BIAS_OFF) {
/* Enable anti-pop features */
snd_soc_write(codec, WM8960_APOP1,
- WM8960_POBCTRL | WM8960_SOFT_ST |
- WM8960_BUFDCOPEN | WM8960_BUFIOEN);
-
- /* Discharge HP output */
- reg = WM8960_DISOP;
- if (pdata)
- reg |= pdata->dres << 4;
- snd_soc_write(codec, WM8960_APOP2, reg);
-
- msleep(400);
-
- snd_soc_write(codec, WM8960_APOP2, 0);
+ WM8960_POBCTRL | WM8960_SOFT_ST |
+ WM8960_BUFDCOPEN | WM8960_BUFIOEN);
/* Enable & ramp VMID at 2x50k */
reg = snd_soc_read(codec, WM8960_POWER1);
/* Disable VMID and VREF, let them discharge */
snd_soc_write(codec, WM8960_POWER1, 0);
msleep(600);
+ break;
+ }
+
+ codec->bias_level = level;
+
+ return 0;
+}
+
+static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
+ int reg;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ break;
+
+ case SND_SOC_BIAS_PREPARE:
+ switch (codec->bias_level) {
+ case SND_SOC_BIAS_STANDBY:
+ /* Enable anti pop mode */
+ snd_soc_update_bits(codec, WM8960_APOP1,
+ WM8960_POBCTRL | WM8960_SOFT_ST |
+ WM8960_BUFDCOPEN,
+ WM8960_POBCTRL | WM8960_SOFT_ST |
+ WM8960_BUFDCOPEN);
+
+ /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
+ reg = 0;
+ if (wm8960->lout1 && wm8960->lout1->power)
+ reg |= WM8960_PWR2_LOUT1;
+ if (wm8960->rout1 && wm8960->rout1->power)
+ reg |= WM8960_PWR2_ROUT1;
+ if (wm8960->out3 && wm8960->out3->power)
+ reg |= WM8960_PWR2_OUT3;
+ snd_soc_update_bits(codec, WM8960_POWER2,
+ WM8960_PWR2_LOUT1 |
+ WM8960_PWR2_ROUT1 |
+ WM8960_PWR2_OUT3, reg);
+
+ /* Enable VMID at 2*50k */
+ snd_soc_update_bits(codec, WM8960_POWER1,
+ WM8960_VMID_MASK, 0x80);
+
+ /* Ramp */
+ msleep(100);
+
+ /* Enable VREF */
+ snd_soc_update_bits(codec, WM8960_POWER1,
+ WM8960_VREF, WM8960_VREF);
+
+ msleep(100);
+ break;
+
+ case SND_SOC_BIAS_ON:
+ /* Enable anti-pop mode */
+ snd_soc_update_bits(codec, WM8960_APOP1,
+ WM8960_POBCTRL | WM8960_SOFT_ST |
+ WM8960_BUFDCOPEN,
+ WM8960_POBCTRL | WM8960_SOFT_ST |
+ WM8960_BUFDCOPEN);
+
+ /* Disable VMID and VREF */
+ snd_soc_update_bits(codec, WM8960_POWER1,
+ WM8960_VREF | WM8960_VMID_MASK, 0);
+ break;
+
+ default:
+ break;
+ }
+ break;
- snd_soc_write(codec, WM8960_APOP1, 0);
+ case SND_SOC_BIAS_STANDBY:
+ switch (codec->bias_level) {
+ case SND_SOC_BIAS_PREPARE:
+ /* Disable HP discharge */
+ snd_soc_update_bits(codec, WM8960_APOP2,
+ WM8960_DISOP | WM8960_DRES_MASK,
+ 0);
+
+ /* Disable anti-pop features */
+ snd_soc_update_bits(codec, WM8960_APOP1,
+ WM8960_POBCTRL | WM8960_SOFT_ST |
+ WM8960_BUFDCOPEN,
+ WM8960_POBCTRL | WM8960_SOFT_ST |
+ WM8960_BUFDCOPEN);
+ break;
+
+ default:
+ break;
+ }
+ break;
+
+ case SND_SOC_BIAS_OFF:
break;
}
u16 reg;
switch (div_id) {
- case WM8960_SYSCLKSEL:
- reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1fe;
- snd_soc_write(codec, WM8960_CLOCK1, reg | div);
- break;
case WM8960_SYSCLKDIV:
reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
snd_soc_write(codec, WM8960_CLOCK1, reg | div);
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
- wm8960_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ codec->set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
codec->hw_write(codec->control_data, data, 2);
}
- wm8960_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- wm8960_set_bias_level(codec, codec->suspend_bias_level);
+ codec->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
return 0;
}
goto err;
}
+ codec->set_bias_level = wm8960_set_bias_level_out3;
+
if (!pdata) {
dev_warn(codec->dev, "No platform data supplied\n");
} else {
dev_err(codec->dev, "Invalid DRES: %d\n", pdata->dres);
pdata->dres = 0;
}
+
+ if (pdata->capless)
+ codec->set_bias_level = wm8960_set_bias_level_capless;
}
mutex_init(&codec->mutex);
INIT_LIST_HEAD(&codec->dapm_widgets);
INIT_LIST_HEAD(&codec->dapm_paths);
- codec->private_data = wm8960;
+ snd_soc_codec_set_drvdata(codec, wm8960);
codec->name = "WM8960";
codec->owner = THIS_MODULE;
codec->bias_level = SND_SOC_BIAS_OFF;
- codec->set_bias_level = wm8960_set_bias_level;
codec->dai = &wm8960_dai;
codec->num_dai = 1;
codec->reg_cache_size = WM8960_CACHEREGNUM;
wm8960_dai.dev = codec->dev;
- wm8960_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ codec->set_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* Latch the update bits */
reg = snd_soc_read(codec, WM8960_LINVOL);
static void wm8960_unregister(struct wm8960_priv *wm8960)
{
- wm8960_set_bias_level(&wm8960->codec, SND_SOC_BIAS_OFF);
+ wm8960->codec.set_bias_level(&wm8960->codec, SND_SOC_BIAS_OFF);
snd_soc_unregister_dai(&wm8960_dai);
snd_soc_unregister_codec(&wm8960->codec);
kfree(wm8960);
static struct i2c_driver wm8960_i2c_driver = {
.driver = {
- .name = "WM8960 I2C Codec",
+ .name = "wm8960",
.owner = THIS_MODULE,
},
.probe = wm8960_i2c_probe,
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