diff options
Diffstat (limited to 'sound/soc/codecs/ssm2602.c')
| -rw-r--r-- | sound/soc/codecs/ssm2602.c | 196 |
1 files changed, 96 insertions, 100 deletions
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c index 2727befd158e..7e2194975360 100644 --- a/sound/soc/codecs/ssm2602.c +++ b/sound/soc/codecs/ssm2602.c @@ -32,6 +32,7 @@ #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> +#include <linux/spi/spi.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <sound/core.h> @@ -48,7 +49,6 @@ struct ssm2602_priv { unsigned int sysclk; enum snd_soc_control_type control_type; - void *control_data; struct snd_pcm_substream *master_substream; struct snd_pcm_substream *slave_substream; }; @@ -65,55 +65,7 @@ static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = { 0x0000, 0x0000 }; -/* - * read ssm2602 register cache - */ -static inline unsigned int ssm2602_read_reg_cache(struct snd_soc_codec *codec, - unsigned int reg) -{ - u16 *cache = codec->reg_cache; - if (reg == SSM2602_RESET) - return 0; - if (reg >= SSM2602_CACHEREGNUM) - return -1; - return cache[reg]; -} - -/* - * write ssm2602 register cache - */ -static inline void ssm2602_write_reg_cache(struct snd_soc_codec *codec, - u16 reg, unsigned int value) -{ - u16 *cache = codec->reg_cache; - if (reg >= SSM2602_CACHEREGNUM) - return; - cache[reg] = value; -} - -/* - * write to the ssm2602 register space - */ -static int ssm2602_write(struct snd_soc_codec *codec, unsigned int reg, - unsigned int value) -{ - u8 data[2]; - - /* data is - * D15..D9 ssm2602 register offset - * D8...D0 register data - */ - data[0] = (reg << 1) | ((value >> 8) & 0x0001); - data[1] = value & 0x00ff; - - ssm2602_write_reg_cache(codec, reg, value); - if (codec->hw_write(codec->control_data, data, 2) == 2) - return 0; - else - return -EIO; -} - -#define ssm2602_reset(c) ssm2602_write(c, SSM2602_RESET, 0) +#define ssm2602_reset(c) snd_soc_write(c, SSM2602_RESET, 0) /*Appending several "None"s just for OSS mixer use*/ static const char *ssm2602_input_select[] = { @@ -278,12 +230,11 @@ static int ssm2602_hw_params(struct snd_pcm_substream *substream, struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_codec *codec = rtd->codec; struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); - struct i2c_client *i2c = codec->control_data; - u16 iface = ssm2602_read_reg_cache(codec, SSM2602_IFACE) & 0xfff3; + u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3; int i = get_coeff(ssm2602->sysclk, params_rate(params)); if (substream == ssm2602->slave_substream) { - dev_dbg(&i2c->dev, "Ignoring hw_params for slave substream\n"); + dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n"); return 0; } @@ -294,8 +245,8 @@ static int ssm2602_hw_params(struct snd_pcm_substream *substream, srate = (coeff_div[i].sr << 2) | (coeff_div[i].bosr << 1) | coeff_div[i].usb; - ssm2602_write(codec, SSM2602_ACTIVE, 0); - ssm2602_write(codec, SSM2602_SRATE, srate); + snd_soc_write(codec, SSM2602_ACTIVE, 0); + snd_soc_write(codec, SSM2602_SRATE, srate); /* bit size */ switch (params_format(params)) { @@ -311,8 +262,8 @@ static int ssm2602_hw_params(struct snd_pcm_substream *substream, iface |= 0x000c; break; } - ssm2602_write(codec, SSM2602_IFACE, iface); - ssm2602_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC); + snd_soc_write(codec, SSM2602_IFACE, iface); + snd_soc_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC); return 0; } @@ -360,7 +311,7 @@ static int ssm2602_pcm_prepare(struct snd_pcm_substream *substream, struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_codec *codec = rtd->codec; /* set active */ - ssm2602_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC); + snd_soc_write(codec, SSM2602_ACTIVE, ACTIVE_ACTIVATE_CODEC); return 0; } @@ -374,7 +325,7 @@ static void ssm2602_shutdown(struct snd_pcm_substream *substream, /* deactivate */ if (!codec->active) - ssm2602_write(codec, SSM2602_ACTIVE, 0); + snd_soc_write(codec, SSM2602_ACTIVE, 0); if (ssm2602->master_substream == substream) ssm2602->master_substream = ssm2602->slave_substream; @@ -385,12 +336,12 @@ static void ssm2602_shutdown(struct snd_pcm_substream *substream, static int ssm2602_mute(struct snd_soc_dai *dai, int mute) { struct snd_soc_codec *codec = dai->codec; - u16 mute_reg = ssm2602_read_reg_cache(codec, SSM2602_APDIGI) & ~APDIGI_ENABLE_DAC_MUTE; + u16 mute_reg = snd_soc_read(codec, SSM2602_APDIGI) & ~APDIGI_ENABLE_DAC_MUTE; if (mute) - ssm2602_write(codec, SSM2602_APDIGI, + snd_soc_write(codec, SSM2602_APDIGI, mute_reg | APDIGI_ENABLE_DAC_MUTE); else - ssm2602_write(codec, SSM2602_APDIGI, mute_reg); + snd_soc_write(codec, SSM2602_APDIGI, mute_reg); return 0; } @@ -466,30 +417,30 @@ static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai, } /* set iface */ - ssm2602_write(codec, SSM2602_IFACE, iface); + snd_soc_write(codec, SSM2602_IFACE, iface); return 0; } static int ssm2602_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { - u16 reg = ssm2602_read_reg_cache(codec, SSM2602_PWR) & 0xff7f; + u16 reg = snd_soc_read(codec, SSM2602_PWR) & 0xff7f; switch (level) { case SND_SOC_BIAS_ON: /* vref/mid, osc on, dac unmute */ - ssm2602_write(codec, SSM2602_PWR, reg); + snd_soc_write(codec, SSM2602_PWR, reg); break; case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: /* everything off except vref/vmid, */ - ssm2602_write(codec, SSM2602_PWR, reg | PWR_CLK_OUT_PDN); + snd_soc_write(codec, SSM2602_PWR, reg | PWR_CLK_OUT_PDN); break; case SND_SOC_BIAS_OFF: /* everything off, dac mute, inactive */ - ssm2602_write(codec, SSM2602_ACTIVE, 0); - ssm2602_write(codec, SSM2602_PWR, 0xffff); + snd_soc_write(codec, SSM2602_ACTIVE, 0); + snd_soc_write(codec, SSM2602_PWR, 0xffff); break; } @@ -539,17 +490,10 @@ static int ssm2602_suspend(struct snd_soc_codec *codec, pm_message_t state) static int ssm2602_resume(struct snd_soc_codec *codec) { - int i; - u8 data[2]; - u16 *cache = codec->reg_cache; - - /* Sync reg_cache with the hardware */ - for (i = 0; i < ARRAY_SIZE(ssm2602_reg); i++) { - data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); - data[1] = cache[i] & 0x00ff; - codec->hw_write(codec->control_data, data, 2); - } + snd_soc_cache_sync(codec); + ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + return 0; } @@ -560,31 +504,39 @@ static int ssm2602_probe(struct snd_soc_codec *codec) pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION); - codec->control_data = ssm2602->control_data; + ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type); + if (ret < 0) { + dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); + return ret; + } - ssm2602_reset(codec); + ret = ssm2602_reset(codec); + if (ret < 0) { + dev_err(codec->dev, "Failed to issue reset: %d\n", ret); + return ret; + } /*power on device*/ - ssm2602_write(codec, SSM2602_ACTIVE, 0); + snd_soc_write(codec, SSM2602_ACTIVE, 0); /* set the update bits */ - reg = ssm2602_read_reg_cache(codec, SSM2602_LINVOL); - ssm2602_write(codec, SSM2602_LINVOL, reg | LINVOL_LRIN_BOTH); - reg = ssm2602_read_reg_cache(codec, SSM2602_RINVOL); - ssm2602_write(codec, SSM2602_RINVOL, reg | RINVOL_RLIN_BOTH); - reg = ssm2602_read_reg_cache(codec, SSM2602_LOUT1V); - ssm2602_write(codec, SSM2602_LOUT1V, reg | LOUT1V_LRHP_BOTH); - reg = ssm2602_read_reg_cache(codec, SSM2602_ROUT1V); - ssm2602_write(codec, SSM2602_ROUT1V, reg | ROUT1V_RLHP_BOTH); + reg = snd_soc_read(codec, SSM2602_LINVOL); + 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*/ - ssm2602_write(codec, SSM2602_APANA, APANA_SELECT_DAC | + snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC | APANA_ENABLE_MIC_BOOST); - ssm2602_write(codec, SSM2602_PWR, 0); + snd_soc_write(codec, SSM2602_PWR, 0); snd_soc_add_controls(codec, ssm2602_snd_controls, ARRAY_SIZE(ssm2602_snd_controls)); ssm2602_add_widgets(codec); - return ret; + return 0; } /* remove everything here */ @@ -599,14 +551,49 @@ static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { .remove = ssm2602_remove, .suspend = ssm2602_suspend, .resume = ssm2602_resume, - .read = ssm2602_read_reg_cache, - .write = ssm2602_write, .set_bias_level = ssm2602_set_bias_level, .reg_cache_size = sizeof(ssm2602_reg), .reg_word_size = sizeof(u16), .reg_cache_default = ssm2602_reg, }; +#if defined(CONFIG_SPI_MASTER) +static int __devinit ssm2602_spi_probe(struct spi_device *spi) +{ + struct ssm2602_priv *ssm2602; + int ret; + + ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL); + if (ssm2602 == NULL) + return -ENOMEM; + + spi_set_drvdata(spi, ssm2602); + ssm2602->control_type = SND_SOC_SPI; + + ret = snd_soc_register_codec(&spi->dev, + &soc_codec_dev_ssm2602, &ssm2602_dai, 1); + if (ret < 0) + kfree(ssm2602); + return ret; +} + +static int __devexit ssm2602_spi_remove(struct spi_device *spi) +{ + snd_soc_unregister_codec(&spi->dev); + kfree(spi_get_drvdata(spi)); + return 0; +} + +static struct spi_driver ssm2602_spi_driver = { + .driver = { + .name = "ssm2602", + .owner = THIS_MODULE, + }, + .probe = ssm2602_spi_probe, + .remove = __devexit_p(ssm2602_spi_remove), +}; +#endif + #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) /* * ssm2602 2 wire address is determined by GPIO5 @@ -625,7 +612,6 @@ static int ssm2602_i2c_probe(struct i2c_client *i2c, return -ENOMEM; i2c_set_clientdata(i2c, ssm2602); - ssm2602->control_data = i2c; ssm2602->control_type = SND_SOC_I2C; ret = snd_soc_register_codec(&i2c->dev, @@ -651,7 +637,7 @@ MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id); /* corgi i2c codec control layer */ static struct i2c_driver ssm2602_i2c_driver = { .driver = { - .name = "ssm2602-codec", + .name = "ssm2602", .owner = THIS_MODULE, }, .probe = ssm2602_i2c_probe, @@ -664,19 +650,29 @@ static struct i2c_driver ssm2602_i2c_driver = { static int __init ssm2602_modinit(void) { int ret = 0; + +#if defined(CONFIG_SPI_MASTER) + ret = spi_register_driver(&ssm2602_spi_driver); + if (ret) + return ret; +#endif + #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&ssm2602_i2c_driver); - if (ret != 0) { - printk(KERN_ERR "Failed to register SSM2602 I2C driver: %d\n", - ret); - } + if (ret) + return ret; #endif + return ret; } module_init(ssm2602_modinit); static void __exit ssm2602_exit(void) { +#if defined(CONFIG_SPI_MASTER) + spi_unregister_driver(&ssm2602_spi_driver); +#endif + #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) i2c_del_driver(&ssm2602_i2c_driver); #endif |