The SSM2604 is basically a lightweight variant of the SSM2602 with a compatible register layout. Thus we can easily support both devices by the same driver, by providing a slightly set of controls, widgets and routes.
Compared to the SSM2602 the SSM2604 has no microphone input and no headphone output.
Signed-off-by: Lars-Peter Clausen lars@metafoo.de --- sound/soc/codecs/ssm2602.c | 169 ++++++++++++++++++++++++++++++-------------- 1 files changed, 116 insertions(+), 53 deletions(-)
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c index e1ebf3d..b0306cf 100644 --- a/sound/soc/codecs/ssm2602.c +++ b/sound/soc/codecs/ssm2602.c @@ -45,12 +45,19 @@
#define SSM2602_VERSION "0.1"
+enum ssm2602_type { + SSM2602, + SSM2604, +}; + /* codec private data */ struct ssm2602_priv { unsigned int sysclk; enum snd_soc_control_type control_type; struct snd_pcm_substream *master_substream; struct snd_pcm_substream *slave_substream; + + enum ssm2602_type type; };
/* @@ -80,90 +87,97 @@ static const struct soc_enum ssm2602_enum[] = { SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph), };
-static const struct snd_kcontrol_new ssm2602_snd_controls[] = { +static const struct snd_kcontrol_new ssm260x_snd_controls[] = { +SOC_DOUBLE_R("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 31, 0), +SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
+SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1), +SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0), + +SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]), +}; + +static const struct snd_kcontrol_new ssm2602_snd_controls[] = { SOC_DOUBLE_R("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V, 0, 127, 0), SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V, 7, 1, 0),
-SOC_DOUBLE_R("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 31, 0), -SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1), +SOC_SINGLE("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1),
SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0), SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0), SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1), - -SOC_SINGLE("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1), - -SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1), -SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0), - -SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]), };
/* Output Mixer */ -static const struct snd_kcontrol_new ssm2602_output_mixer_controls[] = { +static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = { SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0), -SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0), SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0), +SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0), };
/* Input mux */ static const struct snd_kcontrol_new ssm2602_input_mux_controls = SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
-static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = { -SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1, - &ssm2602_output_mixer_controls[0], - ARRAY_SIZE(ssm2602_output_mixer_controls)), +static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = { SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1), +SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1), +SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0), + SND_SOC_DAPM_OUTPUT("LOUT"), -SND_SOC_DAPM_OUTPUT("LHPOUT"), SND_SOC_DAPM_OUTPUT("ROUT"), -SND_SOC_DAPM_OUTPUT("RHPOUT"), -SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1), +SND_SOC_DAPM_INPUT("RLINEIN"), +SND_SOC_DAPM_INPUT("LLINEIN"), +}; + +static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = { +SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1, + ssm260x_output_mixer_controls, + ARRAY_SIZE(ssm260x_output_mixer_controls)), + SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls), -SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0), SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1), + +SND_SOC_DAPM_OUTPUT("LHPOUT"), +SND_SOC_DAPM_OUTPUT("RHPOUT"), SND_SOC_DAPM_INPUT("MICIN"), -SND_SOC_DAPM_INPUT("RLINEIN"), -SND_SOC_DAPM_INPUT("LLINEIN"), };
-static const struct snd_soc_dapm_route audio_conn[] = { - /* output mixer */ +static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = { +SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, + ssm260x_output_mixer_controls, + ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */ +}; + +static const struct snd_soc_dapm_route ssm260x_routes[] = { {"Output Mixer", "Line Bypass Switch", "Line Input"}, {"Output Mixer", "HiFi Playback Switch", "DAC"}, + + {"ROUT", NULL, "Output Mixer"}, + {"LOUT", NULL, "Output Mixer"}, + + {"Line Input", NULL, "LLINEIN"}, + {"Line Input", NULL, "RLINEIN"}, +}; + +static const struct snd_soc_dapm_route ssm2602_routes[] = { {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
- /* outputs */ {"RHPOUT", NULL, "Output Mixer"}, - {"ROUT", NULL, "Output Mixer"}, {"LHPOUT", NULL, "Output Mixer"}, - {"LOUT", NULL, "Output Mixer"},
- /* input mux */ {"Input Mux", "Line", "Line Input"}, {"Input Mux", "Mic", "Mic Bias"}, {"ADC", NULL, "Input Mux"},
- /* inputs */ - {"Line Input", NULL, "LLINEIN"}, - {"Line Input", NULL, "RLINEIN"}, {"Mic Bias", NULL, "MICIN"}, };
-static int ssm2602_add_widgets(struct snd_soc_codec *codec) -{ - struct snd_soc_dapm_context *dapm = &codec->dapm; - - snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets, - ARRAY_SIZE(ssm2602_dapm_widgets)); - snd_soc_dapm_add_routes(dapm, audio_conn, ARRAY_SIZE(audio_conn)); - - return 0; -} +static const struct snd_soc_dapm_route ssm2604_routes[] = { + {"ADC", NULL, "Line Input"}, +};
struct ssm2602_coeff { u32 mclk; @@ -492,8 +506,46 @@ static int ssm2602_resume(struct snd_soc_codec *codec)
static int ssm2602_probe(struct snd_soc_codec *codec) { + struct snd_soc_dapm_context *dapm = &codec->dapm; + int ret, reg; + + reg = snd_soc_read(codec, SSM2602_LOUT1V); + snd_soc_write(codec, SSM2602_LOUT1V, reg | LOUT1V_LRHP_BOTH); + reg = snd_soc_read(codec, SSM2602_ROUT1V); + snd_soc_write(codec, SSM2602_ROUT1V, reg | ROUT1V_RLHP_BOTH); + + ret = snd_soc_add_controls(codec, ssm2602_snd_controls, + ARRAY_SIZE(ssm2602_snd_controls)); + if (ret) + return ret; + + ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets, + ARRAY_SIZE(ssm2602_dapm_widgets)); + if (ret) + return ret; + + return snd_soc_dapm_add_routes(dapm, ssm2602_routes, + ARRAY_SIZE(ssm2602_routes)); +} + +static int ssm2604_probe(struct snd_soc_codec *codec) +{ + struct snd_soc_dapm_context *dapm = &codec->dapm; + int ret; + + ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets, + ARRAY_SIZE(ssm2604_dapm_widgets)); + if (ret) + return ret; + + return snd_soc_dapm_add_routes(dapm, ssm2604_routes, + ARRAY_SIZE(ssm2604_routes)); +} + +static int ssm260x_probe(struct snd_soc_codec *codec) +{ struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); - int ret = 0, reg; + int ret, reg;
pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
@@ -514,19 +566,20 @@ static int ssm2602_probe(struct snd_soc_codec *codec) snd_soc_write(codec, SSM2602_LINVOL, reg | LINVOL_LRIN_BOTH); reg = snd_soc_read(codec, SSM2602_RINVOL); snd_soc_write(codec, SSM2602_RINVOL, reg | RINVOL_RLIN_BOTH); - reg = snd_soc_read(codec, SSM2602_LOUT1V); - snd_soc_write(codec, SSM2602_LOUT1V, reg | LOUT1V_LRHP_BOTH); - reg = snd_soc_read(codec, SSM2602_ROUT1V); - snd_soc_write(codec, SSM2602_ROUT1V, reg | ROUT1V_RLHP_BOTH); /*select Line in as default input*/ snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC | APANA_ENABLE_MIC_BOOST);
- snd_soc_add_controls(codec, ssm2602_snd_controls, - ARRAY_SIZE(ssm2602_snd_controls)); - ssm2602_add_widgets(codec); + switch (ssm2602->type) { + case SSM2602: + ret = ssm2602_probe(codec); + break; + case SSM2604: + ret = ssm2604_probe(codec); + break; + }
- return 0; + return ret; }
/* remove everything here */ @@ -537,7 +590,7 @@ static int ssm2602_remove(struct snd_soc_codec *codec) }
static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { - .probe = ssm2602_probe, + .probe = ssm260x_probe, .remove = ssm2602_remove, .suspend = ssm2602_suspend, .resume = ssm2602_resume, @@ -545,6 +598,13 @@ static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { .reg_cache_size = ARRAY_SIZE(ssm2602_reg), .reg_word_size = sizeof(u16), .reg_cache_default = ssm2602_reg, + + .controls = ssm260x_snd_controls, + .num_controls = ARRAY_SIZE(ssm260x_snd_controls), + .dapm_widgets = ssm260x_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets), + .dapm_routes = ssm260x_routes, + .num_dapm_routes = ARRAY_SIZE(ssm260x_routes), };
#if defined(CONFIG_SPI_MASTER) @@ -559,6 +619,7 @@ static int __devinit ssm2602_spi_probe(struct spi_device *spi)
spi_set_drvdata(spi, ssm2602); ssm2602->control_type = SND_SOC_SPI; + ssm2602->type = SSM2602;
ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_ssm2602, &ssm2602_dai, 1); @@ -603,6 +664,7 @@ static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c,
i2c_set_clientdata(i2c, ssm2602); ssm2602->control_type = SND_SOC_I2C; + ssm2602->type = id->driver_data;
ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_ssm2602, &ssm2602_dai, 1); @@ -619,7 +681,8 @@ static int __devexit ssm2602_i2c_remove(struct i2c_client *client) }
static const struct i2c_device_id ssm2602_i2c_id[] = { - { "ssm2602", 0 }, + { "ssm2602", SSM2602 }, + { "ssm2604", SSM2604 }, { } }; MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id); @@ -669,6 +732,6 @@ static void __exit ssm2602_exit(void) } module_exit(ssm2602_exit);
-MODULE_DESCRIPTION("ASoC ssm2602 driver"); +MODULE_DESCRIPTION("ASoC SSM2602/SSM2604 driver"); MODULE_AUTHOR("Cliff Cai"); MODULE_LICENSE("GPL");