[alsa-devel] [PATCH 20/21] ASoC: Convert WM2000 into a standard CODEC driver
Mark Brown
broonie at opensource.wolfsonmicro.com
Sat Dec 3 22:33:28 CET 2011
We've been able to handle external amps for a while now.
Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
---
sound/soc/codecs/Kconfig | 6 +-
sound/soc/codecs/Makefile | 4 +-
sound/soc/codecs/wm2000.c | 145 +++++++++++++++++++++------------------------
sound/soc/codecs/wm2000.h | 2 -
4 files changed, 73 insertions(+), 84 deletions(-)
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 88ea1ba..087cc12 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -298,6 +298,9 @@ config SND_SOC_WM0010
config SND_SOC_WM1250_EV1
tristate
+config SND_SOC_WM2000
+ tristate
+
config SND_SOC_WM5100
tristate
@@ -434,8 +437,5 @@ config SND_SOC_MAX9877
config SND_SOC_TPA6130A2
tristate
-config SND_SOC_WM2000
- tristate
-
config SND_SOC_WM9090
tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 0e4869f..15f187a 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -51,6 +51,7 @@ snd-soc-uda1380-objs := uda1380.o
snd-soc-wl1273-objs := wl1273.o
snd-soc-wm0010-objs := wm0010.o
snd-soc-wm1250-ev1-objs := wm1250-ev1.o
+snd-soc-wm2000-objs := wm2000.o
snd-soc-wm5100-objs := wm5100.o wm5100-tables.o
snd-soc-wm8350-objs := wm8350.o
snd-soc-wm8400-objs := wm8400.o
@@ -99,7 +100,6 @@ snd-soc-wm-hubs-objs := wm_hubs.o
# Amp
snd-soc-max9877-objs := max9877.o
snd-soc-tpa6130a2-objs := tpa6130a2.o
-snd-soc-wm2000-objs := wm2000.o
snd-soc-wm9090-objs := wm9090.o
obj-$(CONFIG_SND_SOC_88PM860X) += snd-soc-88pm860x.o
@@ -155,6 +155,7 @@ obj-$(CONFIG_SND_SOC_UDA1380) += snd-soc-uda1380.o
obj-$(CONFIG_SND_SOC_WL1273) += snd-soc-wl1273.o
obj-$(CONFIG_SND_SOC_WM0010) += snd-soc-wm0010.o
obj-$(CONFIG_SND_SOC_WM1250_EV1) += snd-soc-wm1250-ev1.o
+obj-$(CONFIG_SND_SOC_WM2000) += snd-soc-wm2000.o
obj-$(CONFIG_SND_SOC_WM5100) += snd-soc-wm5100.o
obj-$(CONFIG_SND_SOC_WM8350) += snd-soc-wm8350.o
obj-$(CONFIG_SND_SOC_WM8400) += snd-soc-wm8400.o
@@ -203,5 +204,4 @@ obj-$(CONFIG_SND_SOC_WM_HUBS) += snd-soc-wm-hubs.o
# Amp
obj-$(CONFIG_SND_SOC_MAX9877) += snd-soc-max9877.o
obj-$(CONFIG_SND_SOC_TPA6130A2) += snd-soc-tpa6130a2.o
-obj-$(CONFIG_SND_SOC_WM2000) += snd-soc-wm2000.o
obj-$(CONFIG_SND_SOC_WM9090) += snd-soc-wm9090.o
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index a5f57ce..c288090 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -67,8 +67,6 @@ struct wm2000_priv {
char *anc_download;
};
-static struct i2c_client *wm2000_i2c;
-
static int wm2000_write(struct i2c_client *i2c, unsigned int reg,
unsigned int value)
{
@@ -580,7 +578,8 @@ static int wm2000_anc_set_mode(struct wm2000_priv *wm2000)
static int wm2000_anc_mode_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
- struct wm2000_priv *wm2000 = dev_get_drvdata(&wm2000_i2c->dev);
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
ucontrol->value.enumerated.item[0] = wm2000->anc_active;
@@ -590,7 +589,8 @@ static int wm2000_anc_mode_get(struct snd_kcontrol *kcontrol,
static int wm2000_anc_mode_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
- struct wm2000_priv *wm2000 = dev_get_drvdata(&wm2000_i2c->dev);
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
int anc_active = ucontrol->value.enumerated.item[0];
if (anc_active > 1)
@@ -604,7 +604,8 @@ static int wm2000_anc_mode_put(struct snd_kcontrol *kcontrol,
static int wm2000_speaker_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
- struct wm2000_priv *wm2000 = dev_get_drvdata(&wm2000_i2c->dev);
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
ucontrol->value.enumerated.item[0] = wm2000->spk_ena;
@@ -614,7 +615,8 @@ static int wm2000_speaker_get(struct snd_kcontrol *kcontrol,
static int wm2000_speaker_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
- struct wm2000_priv *wm2000 = dev_get_drvdata(&wm2000_i2c->dev);
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
int val = ucontrol->value.enumerated.item[0];
if (val > 1)
@@ -637,7 +639,8 @@ static const struct snd_kcontrol_new wm2000_controls[] = {
static int wm2000_anc_power_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
- struct wm2000_priv *wm2000 = dev_get_drvdata(&wm2000_i2c->dev);
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
if (SND_SOC_DAPM_EVENT_ON(event))
wm2000->anc_eng_ena = 1;
@@ -650,11 +653,11 @@ static int wm2000_anc_power_event(struct snd_soc_dapm_widget *w,
static const struct snd_soc_dapm_widget wm2000_dapm_widgets[] = {
/* Externally visible pins */
-SND_SOC_DAPM_OUTPUT("WM2000 SPKN"),
-SND_SOC_DAPM_OUTPUT("WM2000 SPKP"),
+SND_SOC_DAPM_OUTPUT("SPKN"),
+SND_SOC_DAPM_OUTPUT("SPKP"),
-SND_SOC_DAPM_INPUT("WM2000 LINN"),
-SND_SOC_DAPM_INPUT("WM2000 LINP"),
+SND_SOC_DAPM_INPUT("LINN"),
+SND_SOC_DAPM_INPUT("LINP"),
SND_SOC_DAPM_PGA_E("ANC Engine", SND_SOC_NOPM, 0, 0, NULL, 0,
wm2000_anc_power_event,
@@ -662,43 +665,68 @@ SND_SOC_DAPM_PGA_E("ANC Engine", SND_SOC_NOPM, 0, 0, NULL, 0,
};
/* Target, Path, Source */
-static const struct snd_soc_dapm_route audio_map[] = {
- { "WM2000 SPKN", NULL, "ANC Engine" },
- { "WM2000 SPKP", NULL, "ANC Engine" },
- { "ANC Engine", NULL, "WM2000 LINN" },
- { "ANC Engine", NULL, "WM2000 LINP" },
+static const struct snd_soc_dapm_route wm2000_audio_map[] = {
+ { "SPKN", NULL, "ANC Engine" },
+ { "SPKP", NULL, "ANC Engine" },
+ { "ANC Engine", NULL, "LINN" },
+ { "ANC Engine", NULL, "LINP" },
};
-/* Called from the machine driver */
-int wm2000_add_controls(struct snd_soc_codec *codec)
+#ifdef CONFIG_PM
+static int wm2000_suspend(struct snd_soc_codec *codec)
{
- struct snd_soc_dapm_context *dapm = &codec->dapm;
- int ret;
+ struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
- if (!wm2000_i2c) {
- pr_err("WM2000 not yet probed\n");
- return -ENODEV;
- }
-
- ret = snd_soc_dapm_new_controls(dapm, wm2000_dapm_widgets,
- ARRAY_SIZE(wm2000_dapm_widgets));
- if (ret < 0)
- return ret;
+ return wm2000_anc_transition(wm2000, ANC_OFF);
+}
- ret = snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
- if (ret < 0)
- return ret;
+static int wm2000_resume(struct snd_soc_codec *codec)
+{
+ struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
- return snd_soc_add_controls(codec, wm2000_controls,
- ARRAY_SIZE(wm2000_controls));
+ return wm2000_anc_set_mode(wm2000);
}
-EXPORT_SYMBOL_GPL(wm2000_add_controls);
+#else
+#define wm2000_suspend NULL
+#define wm2000_resume NULL
+#endif
static const struct regmap_config wm2000_regmap = {
.reg_bits = 8,
.val_bits = 8,
};
+static int wm2000_probe(struct snd_soc_codec *codec)
+{
+ struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
+
+ /* This will trigger a transition to standby mode by default */
+ wm2000_anc_set_mode(wm2000);
+
+ return 0;
+}
+
+static int wm2000_remove(struct snd_soc_codec *codec)
+{
+ struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev);
+
+ return wm2000_anc_transition(wm2000, ANC_OFF);
+}
+
+static struct snd_soc_codec_driver soc_codec_dev_wm2000 = {
+ .probe = wm2000_probe,
+ .remove = wm2000_remove,
+ .suspend = wm2000_suspend,
+ .resume = wm2000_resume,
+
+ .dapm_widgets = wm2000_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm2000_dapm_widgets),
+ .dapm_routes = wm2000_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(wm2000_audio_map),
+ .controls = wm2000_controls,
+ .num_controls = ARRAY_SIZE(wm2000_controls),
+};
+
static int __devinit wm2000_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *i2c_id)
{
@@ -709,11 +737,6 @@ static int __devinit wm2000_i2c_probe(struct i2c_client *i2c,
int reg, ret;
u16 id;
- if (wm2000_i2c) {
- dev_err(&i2c->dev, "Another WM2000 is already registered\n");
- return -EINVAL;
- }
-
wm2000 = devm_kzalloc(&i2c->dev, sizeof(struct wm2000_priv),
GFP_KERNEL);
if (wm2000 == NULL) {
@@ -786,10 +809,10 @@ static int __devinit wm2000_i2c_probe(struct i2c_client *i2c,
wm2000_reset(wm2000);
- /* This will trigger a transition to standby mode by default */
- wm2000_anc_set_mode(wm2000);
-
- wm2000_i2c = i2c;
+ ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm2000,
+ NULL, 0);
+ if (ret != 0)
+ goto err_fw;
return 0;
@@ -805,42 +828,12 @@ static __devexit int wm2000_i2c_remove(struct i2c_client *i2c)
{
struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
- wm2000_anc_transition(wm2000, ANC_OFF);
-
+ snd_soc_unregister_codec(&i2c->dev);
regmap_exit(wm2000->regmap);
- wm2000_i2c = NULL;
-
return 0;
}
-static void wm2000_i2c_shutdown(struct i2c_client *i2c)
-{
- struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
-
- wm2000_anc_transition(wm2000, ANC_OFF);
-}
-
-#ifdef CONFIG_PM
-static int wm2000_i2c_suspend(struct device *dev)
-{
- struct i2c_client *i2c = to_i2c_client(dev);
- struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
-
- return wm2000_anc_transition(wm2000, ANC_OFF);
-}
-
-static int wm2000_i2c_resume(struct device *dev)
-{
- struct i2c_client *i2c = to_i2c_client(dev);
- struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
-
- return wm2000_anc_set_mode(wm2000);
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(wm2000_pm, wm2000_i2c_suspend, wm2000_i2c_resume);
-
static const struct i2c_device_id wm2000_i2c_id[] = {
{ "wm2000", 0 },
{ }
@@ -851,11 +844,9 @@ static struct i2c_driver wm2000_i2c_driver = {
.driver = {
.name = "wm2000",
.owner = THIS_MODULE,
- .pm = &wm2000_pm,
},
.probe = wm2000_i2c_probe,
.remove = __devexit_p(wm2000_i2c_remove),
- .shutdown = wm2000_i2c_shutdown,
.id_table = wm2000_i2c_id,
};
diff --git a/sound/soc/codecs/wm2000.h b/sound/soc/codecs/wm2000.h
index 28a51ed..abcd82a 100644
--- a/sound/soc/codecs/wm2000.h
+++ b/sound/soc/codecs/wm2000.h
@@ -9,8 +9,6 @@
#ifndef _WM2000_H
#define _WM2000_H
-extern int wm2000_add_controls(struct snd_soc_codec *codec);
-
#define WM2000_REG_SYS_START 0x8000
#define WM2000_REG_SPEECH_CLARITY 0x8fef
#define WM2000_REG_SYS_WATCHDOG 0x8ff6
--
1.7.7.3
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