summaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/wm8580.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/wm8580.c')
-rw-r--r--sound/soc/codecs/wm8580.c123
1 files changed, 90 insertions, 33 deletions
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index faa7287a5253..910801dddd64 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -1,5 +1,5 @@
/*
- * wm8580.c -- WM8580 ALSA Soc Audio driver
+ * wm8580.c -- WM8580 and WM8581 ALSA Soc Audio driver
*
* Copyright 2008-12 Wolfson Microelectronics PLC.
*
@@ -12,6 +12,9 @@
* The WM8580 is a multichannel codec with S/PDIF support, featuring six
* DAC channels and two ADC channels.
*
+ * The WM8581 is a multichannel codec with S/PDIF support, featuring eight
+ * DAC channels and two ADC channels.
+ *
* Currently only the primary audio interface is supported - S/PDIF and
* the secondary audio interfaces are not.
*/
@@ -65,6 +68,8 @@
#define WM8580_DIGITAL_ATTENUATION_DACR2 0x17
#define WM8580_DIGITAL_ATTENUATION_DACL3 0x18
#define WM8580_DIGITAL_ATTENUATION_DACR3 0x19
+#define WM8581_DIGITAL_ATTENUATION_DACL4 0x1A
+#define WM8581_DIGITAL_ATTENUATION_DACR4 0x1B
#define WM8580_MASTER_DIGITAL_ATTENUATION 0x1C
#define WM8580_ADC_CONTROL1 0x1D
#define WM8580_SPDTXCHAN0 0x1E
@@ -236,12 +241,17 @@ static const char *wm8580_supply_names[WM8580_NUM_SUPPLIES] = {
"PVDD",
};
+struct wm8580_driver_data {
+ int num_dacs;
+};
+
/* codec private data */
struct wm8580_priv {
struct regmap *regmap;
struct regulator_bulk_data supplies[WM8580_NUM_SUPPLIES];
struct pll_state a;
struct pll_state b;
+ const struct wm8580_driver_data *drvdata;
int sysclk[2];
};
@@ -306,6 +316,19 @@ SOC_DOUBLE("Capture Switch", WM8580_ADC_CONTROL1, 0, 1, 1, 1),
SOC_SINGLE("Capture High-Pass Filter Switch", WM8580_ADC_CONTROL1, 4, 1, 0),
};
+static const struct snd_kcontrol_new wm8581_snd_controls[] = {
+SOC_DOUBLE_R_EXT_TLV("DAC4 Playback Volume",
+ WM8581_DIGITAL_ATTENUATION_DACL4,
+ WM8581_DIGITAL_ATTENUATION_DACR4,
+ 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
+
+SOC_SINGLE("DAC4 Deemphasis Switch", WM8580_DAC_CONTROL3, 3, 1, 0),
+
+SOC_DOUBLE("DAC4 Invert Switch", WM8580_DAC_CONTROL4, 8, 7, 1, 0),
+
+SOC_SINGLE("DAC4 Switch", WM8580_DAC_CONTROL5, 3, 1, 1),
+};
+
static const struct snd_soc_dapm_widget wm8580_dapm_widgets[] = {
SND_SOC_DAPM_DAC("DAC1", "Playback", WM8580_PWRDN1, 2, 1),
SND_SOC_DAPM_DAC("DAC2", "Playback", WM8580_PWRDN1, 3, 1),
@@ -324,6 +347,13 @@ SND_SOC_DAPM_INPUT("AINL"),
SND_SOC_DAPM_INPUT("AINR"),
};
+static const struct snd_soc_dapm_widget wm8581_dapm_widgets[] = {
+SND_SOC_DAPM_DAC("DAC4", "Playback", WM8580_PWRDN1, 5, 1),
+
+SND_SOC_DAPM_OUTPUT("VOUT4L"),
+SND_SOC_DAPM_OUTPUT("VOUT4R"),
+};
+
static const struct snd_soc_dapm_route wm8580_dapm_routes[] = {
{ "VOUT1L", NULL, "DAC1" },
{ "VOUT1R", NULL, "DAC1" },
@@ -338,6 +368,11 @@ static const struct snd_soc_dapm_route wm8580_dapm_routes[] = {
{ "ADC", NULL, "AINR" },
};
+static const struct snd_soc_dapm_route wm8581_dapm_routes[] = {
+ { "VOUT4L", NULL, "DAC4" },
+ { "VOUT4R", NULL, "DAC4" },
+};
+
/* PLL divisors */
struct _pll_div {
u32 prescale:1;
@@ -815,10 +850,21 @@ static int wm8580_set_bias_level(struct snd_soc_codec *codec,
return 0;
}
+static int wm8580_playback_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
+
+ return snd_pcm_hw_constraint_minmax(substream->runtime,
+ SNDRV_PCM_HW_PARAM_CHANNELS, 1, wm8580->drvdata->num_dacs * 2);
+}
+
#define WM8580_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
static const struct snd_soc_dai_ops wm8580_dai_ops_playback = {
+ .startup = wm8580_playback_startup,
.set_sysclk = wm8580_set_sysclk,
.hw_params = wm8580_paif_hw_params,
.set_fmt = wm8580_set_paif_dai_fmt,
@@ -842,7 +888,6 @@ static struct snd_soc_dai_driver wm8580_dai[] = {
.playback = {
.stream_name = "Playback",
.channels_min = 1,
- .channels_max = 6,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = WM8580_FORMATS,
},
@@ -865,8 +910,22 @@ static struct snd_soc_dai_driver wm8580_dai[] = {
static int wm8580_probe(struct snd_soc_codec *codec)
{
struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
int ret = 0;
+ switch (wm8580->drvdata->num_dacs) {
+ case 4:
+ snd_soc_add_codec_controls(codec, wm8581_snd_controls,
+ ARRAY_SIZE(wm8581_snd_controls));
+ snd_soc_dapm_new_controls(dapm, wm8581_dapm_widgets,
+ ARRAY_SIZE(wm8581_dapm_widgets));
+ snd_soc_dapm_add_routes(dapm, wm8581_dapm_routes,
+ ARRAY_SIZE(wm8581_dapm_routes));
+ break;
+ default:
+ break;
+ }
+
ret = regulator_bulk_enable(ARRAY_SIZE(wm8580->supplies),
wm8580->supplies);
if (ret != 0) {
@@ -914,12 +973,6 @@ static const struct snd_soc_codec_driver soc_codec_dev_wm8580 = {
},
};
-static const struct of_device_id wm8580_of_match[] = {
- { .compatible = "wlf,wm8580" },
- { },
-};
-MODULE_DEVICE_TABLE(of, wm8580_of_match);
-
static const struct regmap_config wm8580_regmap = {
.reg_bits = 7,
.val_bits = 9,
@@ -932,10 +985,25 @@ static const struct regmap_config wm8580_regmap = {
.volatile_reg = wm8580_volatile,
};
-#if IS_ENABLED(CONFIG_I2C)
+static const struct wm8580_driver_data wm8580_data = {
+ .num_dacs = 3,
+};
+
+static const struct wm8580_driver_data wm8581_data = {
+ .num_dacs = 4,
+};
+
+static const struct of_device_id wm8580_of_match[] = {
+ { .compatible = "wlf,wm8580", .data = &wm8580_data },
+ { .compatible = "wlf,wm8581", .data = &wm8581_data },
+ { },
+};
+MODULE_DEVICE_TABLE(of, wm8580_of_match);
+
static int wm8580_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
+ const struct of_device_id *of_id;
struct wm8580_priv *wm8580;
int ret, i;
@@ -960,6 +1028,15 @@ static int wm8580_i2c_probe(struct i2c_client *i2c,
i2c_set_clientdata(i2c, wm8580);
+ of_id = of_match_device(wm8580_of_match, &i2c->dev);
+ if (of_id)
+ wm8580->drvdata = of_id->data;
+
+ if (!wm8580->drvdata) {
+ dev_err(&i2c->dev, "failed to find driver data\n");
+ return -EINVAL;
+ }
+
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_wm8580, wm8580_dai, ARRAY_SIZE(wm8580_dai));
@@ -973,7 +1050,8 @@ static int wm8580_i2c_remove(struct i2c_client *client)
}
static const struct i2c_device_id wm8580_i2c_id[] = {
- { "wm8580", 0 },
+ { "wm8580", (kernel_ulong_t)&wm8580_data },
+ { "wm8581", (kernel_ulong_t)&wm8581_data },
{ }
};
MODULE_DEVICE_TABLE(i2c, wm8580_i2c_id);
@@ -987,31 +1065,10 @@ static struct i2c_driver wm8580_i2c_driver = {
.remove = wm8580_i2c_remove,
.id_table = wm8580_i2c_id,
};
-#endif
-static int __init wm8580_modinit(void)
-{
- int ret = 0;
-
-#if IS_ENABLED(CONFIG_I2C)
- ret = i2c_add_driver(&wm8580_i2c_driver);
- if (ret != 0) {
- pr_err("Failed to register WM8580 I2C driver: %d\n", ret);
- }
-#endif
-
- return ret;
-}
-module_init(wm8580_modinit);
-
-static void __exit wm8580_exit(void)
-{
-#if IS_ENABLED(CONFIG_I2C)
- i2c_del_driver(&wm8580_i2c_driver);
-#endif
-}
-module_exit(wm8580_exit);
+module_i2c_driver(wm8580_i2c_driver);
MODULE_DESCRIPTION("ASoC WM8580 driver");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_AUTHOR("Matt Flax <flatmax@flatmax.org>");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 14:40:38 +0100