diff options
Diffstat (limited to 'sound/soc/codecs/ad1980.c')
| -rw-r--r-- | sound/soc/codecs/ad1980.c | 212 |
1 files changed, 117 insertions, 95 deletions
diff --git a/sound/soc/codecs/ad1980.c b/sound/soc/codecs/ad1980.c index 304d3003339a..2860eef8610c 100644 --- a/sound/soc/codecs/ad1980.c +++ b/sound/soc/codecs/ad1980.c @@ -24,34 +24,86 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/device.h> +#include <linux/regmap.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/ac97_codec.h> #include <sound/initval.h> #include <sound/soc.h> -#include "ad1980.h" +static const struct reg_default ad1980_reg_defaults[] = { + { 0x02, 0x8000 }, + { 0x04, 0x8000 }, + { 0x06, 0x8000 }, + { 0x0c, 0x8008 }, + { 0x0e, 0x8008 }, + { 0x10, 0x8808 }, + { 0x12, 0x8808 }, + { 0x16, 0x8808 }, + { 0x18, 0x8808 }, + { 0x1a, 0x0000 }, + { 0x1c, 0x8000 }, + { 0x20, 0x0000 }, + { 0x28, 0x03c7 }, + { 0x2c, 0xbb80 }, + { 0x2e, 0xbb80 }, + { 0x30, 0xbb80 }, + { 0x32, 0xbb80 }, + { 0x36, 0x8080 }, + { 0x38, 0x8080 }, + { 0x3a, 0x2000 }, + { 0x60, 0x0000 }, + { 0x62, 0x0000 }, + { 0x72, 0x0000 }, + { 0x74, 0x1001 }, + { 0x76, 0x0000 }, +}; -/* - * AD1980 register cache - */ -static const u16 ad1980_reg[] = { - 0x0090, 0x8000, 0x8000, 0x8000, /* 0 - 6 */ - 0x0000, 0x0000, 0x8008, 0x8008, /* 8 - e */ - 0x8808, 0x8808, 0x0000, 0x8808, /* 10 - 16 */ - 0x8808, 0x0000, 0x8000, 0x0000, /* 18 - 1e */ - 0x0000, 0x0000, 0x0000, 0x0000, /* 20 - 26 */ - 0x03c7, 0x0000, 0xbb80, 0xbb80, /* 28 - 2e */ - 0xbb80, 0xbb80, 0x0000, 0x8080, /* 30 - 36 */ - 0x8080, 0x2000, 0x0000, 0x0000, /* 38 - 3e */ - 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */ - 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */ - 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */ - 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */ - 0x8080, 0x0000, 0x0000, 0x0000, /* 60 - 66 */ - 0x0000, 0x0000, 0x0000, 0x0000, /* reserved */ - 0x0000, 0x0000, 0x1001, 0x0000, /* 70 - 76 */ - 0x0000, 0x0000, 0x4144, 0x5370 /* 78 - 7e */ +static bool ad1980_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AC97_RESET ... AC97_MASTER_MONO: + case AC97_PHONE ... AC97_CD: + case AC97_AUX ... AC97_GENERAL_PURPOSE: + case AC97_POWERDOWN ... AC97_PCM_LR_ADC_RATE: + case AC97_SPDIF: + case AC97_CODEC_CLASS_REV: + case AC97_PCI_SVID: + case AC97_AD_CODEC_CFG: + case AC97_AD_JACK_SPDIF: + case AC97_AD_SERIAL_CFG: + case AC97_VENDOR_ID1: + case AC97_VENDOR_ID2: + return true; + default: + return false; + } +} + +static bool ad1980_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AC97_VENDOR_ID1: + case AC97_VENDOR_ID2: + return false; + default: + return ad1980_readable_reg(dev, reg); + } +} + +static const struct regmap_config ad1980_regmap_config = { + .reg_bits = 16, + .reg_stride = 2, + .val_bits = 16, + .max_register = 0x7e, + .cache_type = REGCACHE_RBTREE, + + .volatile_reg = regmap_ac97_default_volatile, + .readable_reg = ad1980_readable_reg, + .writeable_reg = ad1980_writeable_reg, + + .reg_defaults = ad1980_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(ad1980_reg_defaults), }; static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line", @@ -134,45 +186,8 @@ static const struct snd_soc_dapm_route ad1980_dapm_routes[] = { { "HP_OUT_R", NULL, "Playback" }, }; -static unsigned int ac97_read(struct snd_soc_codec *codec, - unsigned int reg) -{ - u16 *cache = codec->reg_cache; - - switch (reg) { - case AC97_RESET: - case AC97_INT_PAGING: - case AC97_POWERDOWN: - case AC97_EXTENDED_STATUS: - case AC97_VENDOR_ID1: - case AC97_VENDOR_ID2: - return soc_ac97_ops->read(codec->ac97, reg); - default: - reg = reg >> 1; - - if (reg >= ARRAY_SIZE(ad1980_reg)) - return -EINVAL; - - return cache[reg]; - } -} - -static int ac97_write(struct snd_soc_codec *codec, unsigned int reg, - unsigned int val) -{ - u16 *cache = codec->reg_cache; - - soc_ac97_ops->write(codec->ac97, reg, val); - reg = reg >> 1; - if (reg < ARRAY_SIZE(ad1980_reg)) - cache[reg] = val; - - return 0; -} - static struct snd_soc_dai_driver ad1980_dai = { .name = "ad1980-hifi", - .ac97_control = 1, .playback = { .stream_name = "Playback", .channels_min = 2, @@ -189,108 +204,115 @@ static struct snd_soc_dai_driver ad1980_dai = { static int ad1980_reset(struct snd_soc_codec *codec, int try_warm) { + struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec); unsigned int retry_cnt = 0; do { if (try_warm && soc_ac97_ops->warm_reset) { - soc_ac97_ops->warm_reset(codec->ac97); - if (ac97_read(codec, AC97_RESET) == 0x0090) + soc_ac97_ops->warm_reset(ac97); + if (snd_soc_read(codec, AC97_RESET) == 0x0090) return 1; } - soc_ac97_ops->reset(codec->ac97); + soc_ac97_ops->reset(ac97); /* * Set bit 16slot in register 74h, then every slot will has only * 16 bits. This command is sent out in 20bit mode, in which * case the first nibble of data is eaten by the addr. (Tag is * always 16 bit) */ - ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900); + snd_soc_write(codec, AC97_AD_SERIAL_CFG, 0x9900); - if (ac97_read(codec, AC97_RESET) == 0x0090) + if (snd_soc_read(codec, AC97_RESET) == 0x0090) return 0; } while (retry_cnt++ < 10); - printk(KERN_ERR "AD1980 AC97 reset failed\n"); + dev_err(codec->dev, "Failed to reset: AC97 link error\n"); + return -EIO; } static int ad1980_soc_probe(struct snd_soc_codec *codec) { + struct snd_ac97 *ac97; + struct regmap *regmap; int ret; u16 vendor_id2; u16 ext_status; - printk(KERN_INFO "AD1980 SoC Audio Codec\n"); - - ret = snd_soc_new_ac97_codec(codec, soc_ac97_ops, 0); - if (ret < 0) { - printk(KERN_ERR "ad1980: failed to register AC97 codec\n"); + ac97 = snd_soc_new_ac97_codec(codec); + if (IS_ERR(ac97)) { + ret = PTR_ERR(ac97); + dev_err(codec->dev, "Failed to register AC97 codec: %d\n", ret); return ret; } + regmap = regmap_init_ac97(ac97, &ad1980_regmap_config); + if (IS_ERR(regmap)) { + ret = PTR_ERR(regmap); + goto err_free_ac97; + } + + snd_soc_codec_init_regmap(codec, regmap); + snd_soc_codec_set_drvdata(codec, ac97); + ret = ad1980_reset(codec, 0); - if (ret < 0) { - printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n"); + if (ret < 0) goto reset_err; - } /* Read out vendor ID to make sure it is ad1980 */ - if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144) { + if (snd_soc_read(codec, AC97_VENDOR_ID1) != 0x4144) { ret = -ENODEV; goto reset_err; } - vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2); + vendor_id2 = snd_soc_read(codec, AC97_VENDOR_ID2); if (vendor_id2 != 0x5370) { if (vendor_id2 != 0x5374) { ret = -ENODEV; goto reset_err; } else { - printk(KERN_WARNING "ad1980: " - "Found AD1981 - only 2/2 IN/OUT Channels " - "supported\n"); + dev_warn(codec->dev, + "Found AD1981 - only 2/2 IN/OUT Channels supported\n"); } } /* unmute captures and playbacks volume */ - ac97_write(codec, AC97_MASTER, 0x0000); - ac97_write(codec, AC97_PCM, 0x0000); - ac97_write(codec, AC97_REC_GAIN, 0x0000); - ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000); - ac97_write(codec, AC97_SURROUND_MASTER, 0x0000); + snd_soc_write(codec, AC97_MASTER, 0x0000); + snd_soc_write(codec, AC97_PCM, 0x0000); + snd_soc_write(codec, AC97_REC_GAIN, 0x0000); + snd_soc_write(codec, AC97_CENTER_LFE_MASTER, 0x0000); + snd_soc_write(codec, AC97_SURROUND_MASTER, 0x0000); /*power on LFE/CENTER/Surround DACs*/ - ext_status = ac97_read(codec, AC97_EXTENDED_STATUS); - ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800); - - snd_soc_add_codec_controls(codec, ad1980_snd_ac97_controls, - ARRAY_SIZE(ad1980_snd_ac97_controls)); + ext_status = snd_soc_read(codec, AC97_EXTENDED_STATUS); + snd_soc_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800); return 0; reset_err: - snd_soc_free_ac97_codec(codec); + snd_soc_codec_exit_regmap(codec); +err_free_ac97: + snd_soc_free_ac97_codec(ac97); return ret; } static int ad1980_soc_remove(struct snd_soc_codec *codec) { - snd_soc_free_ac97_codec(codec); + struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec); + + snd_soc_codec_exit_regmap(codec); + snd_soc_free_ac97_codec(ac97); return 0; } static struct snd_soc_codec_driver soc_codec_dev_ad1980 = { .probe = ad1980_soc_probe, .remove = ad1980_soc_remove, - .reg_cache_size = ARRAY_SIZE(ad1980_reg), - .reg_word_size = sizeof(u16), - .reg_cache_default = ad1980_reg, - .reg_cache_step = 2, - .write = ac97_write, - .read = ac97_read, + .controls = ad1980_snd_ac97_controls, + .num_controls = ARRAY_SIZE(ad1980_snd_ac97_controls), .dapm_widgets = ad1980_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(ad1980_dapm_widgets), .dapm_routes = ad1980_dapm_routes, |