| /* |
| * ad1980.c -- ALSA Soc AD1980 codec support |
| * |
| * Copyright: Analog Device Inc. |
| * Author: Roy Huang <roy.huang@analog.com> |
| * Cliff Cai <cliff.cai@analog.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| */ |
| |
| /* |
| * WARNING: |
| * |
| * Because Analog Devices Inc. discontinued the ad1980 sound chip since |
| * Sep. 2009, this ad1980 driver is not maintained, tested and supported |
| * by ADI now. |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #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> |
| |
| 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 }, |
| }; |
| |
| 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", |
| "Stereo Mix", "Mono Mix", "Phone"}; |
| |
| static SOC_ENUM_DOUBLE_DECL(ad1980_cap_src, |
| AC97_REC_SEL, 8, 0, ad1980_rec_sel); |
| |
| static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = { |
| SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1), |
| SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1), |
| |
| SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1), |
| SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1), |
| |
| SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1), |
| SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1), |
| |
| SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0), |
| SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1), |
| |
| SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1), |
| SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1), |
| |
| SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1), |
| SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1), |
| |
| SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1), |
| SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1), |
| |
| SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0), |
| SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0), |
| |
| SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1), |
| SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1), |
| |
| SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1), |
| SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1), |
| |
| SOC_ENUM("Capture Source", ad1980_cap_src), |
| |
| SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0), |
| }; |
| |
| static const struct snd_soc_dapm_widget ad1980_dapm_widgets[] = { |
| SND_SOC_DAPM_INPUT("MIC1"), |
| SND_SOC_DAPM_INPUT("MIC2"), |
| SND_SOC_DAPM_INPUT("CD_L"), |
| SND_SOC_DAPM_INPUT("CD_R"), |
| SND_SOC_DAPM_INPUT("AUX_L"), |
| SND_SOC_DAPM_INPUT("AUX_R"), |
| SND_SOC_DAPM_INPUT("LINE_IN_L"), |
| SND_SOC_DAPM_INPUT("LINE_IN_R"), |
| |
| SND_SOC_DAPM_OUTPUT("LFE_OUT"), |
| SND_SOC_DAPM_OUTPUT("CENTER_OUT"), |
| SND_SOC_DAPM_OUTPUT("LINE_OUT_L"), |
| SND_SOC_DAPM_OUTPUT("LINE_OUT_R"), |
| SND_SOC_DAPM_OUTPUT("MONO_OUT"), |
| SND_SOC_DAPM_OUTPUT("HP_OUT_L"), |
| SND_SOC_DAPM_OUTPUT("HP_OUT_R"), |
| }; |
| |
| static const struct snd_soc_dapm_route ad1980_dapm_routes[] = { |
| { "Capture", NULL, "MIC1" }, |
| { "Capture", NULL, "MIC2" }, |
| { "Capture", NULL, "CD_L" }, |
| { "Capture", NULL, "CD_R" }, |
| { "Capture", NULL, "AUX_L" }, |
| { "Capture", NULL, "AUX_R" }, |
| { "Capture", NULL, "LINE_IN_L" }, |
| { "Capture", NULL, "LINE_IN_R" }, |
| |
| { "LFE_OUT", NULL, "Playback" }, |
| { "CENTER_OUT", NULL, "Playback" }, |
| { "LINE_OUT_L", NULL, "Playback" }, |
| { "LINE_OUT_R", NULL, "Playback" }, |
| { "MONO_OUT", NULL, "Playback" }, |
| { "HP_OUT_L", NULL, "Playback" }, |
| { "HP_OUT_R", NULL, "Playback" }, |
| }; |
| |
| static struct snd_soc_dai_driver ad1980_dai = { |
| .name = "ad1980-hifi", |
| .playback = { |
| .stream_name = "Playback", |
| .channels_min = 2, |
| .channels_max = 6, |
| .rates = SNDRV_PCM_RATE_48000, |
| .formats = SND_SOC_STD_AC97_FMTS, }, |
| .capture = { |
| .stream_name = "Capture", |
| .channels_min = 2, |
| .channels_max = 2, |
| .rates = SNDRV_PCM_RATE_48000, |
| .formats = SND_SOC_STD_AC97_FMTS, }, |
| }; |
| |
| 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(ac97); |
| if (snd_soc_read(codec, AC97_RESET) == 0x0090) |
| return 1; |
| } |
| |
| 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) |
| */ |
| snd_soc_write(codec, AC97_AD_SERIAL_CFG, 0x9900); |
| |
| if (snd_soc_read(codec, AC97_RESET) == 0x0090) |
| return 0; |
| } while (retry_cnt++ < 10); |
| |
| 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; |
| |
| 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) |
| goto reset_err; |
| |
| /* Read out vendor ID to make sure it is ad1980 */ |
| if (snd_soc_read(codec, AC97_VENDOR_ID1) != 0x4144) { |
| ret = -ENODEV; |
| goto reset_err; |
| } |
| |
| vendor_id2 = snd_soc_read(codec, AC97_VENDOR_ID2); |
| |
| if (vendor_id2 != 0x5370) { |
| if (vendor_id2 != 0x5374) { |
| ret = -ENODEV; |
| goto reset_err; |
| } else { |
| dev_warn(codec->dev, |
| "Found AD1981 - only 2/2 IN/OUT Channels supported\n"); |
| } |
| } |
| |
| /* unmute captures and playbacks volume */ |
| 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 = snd_soc_read(codec, AC97_EXTENDED_STATUS); |
| snd_soc_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800); |
| |
| return 0; |
| |
| reset_err: |
| 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) |
| { |
| 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, |
| |
| .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, |
| .num_dapm_routes = ARRAY_SIZE(ad1980_dapm_routes), |
| }; |
| |
| static int ad1980_probe(struct platform_device *pdev) |
| { |
| return snd_soc_register_codec(&pdev->dev, |
| &soc_codec_dev_ad1980, &ad1980_dai, 1); |
| } |
| |
| static int ad1980_remove(struct platform_device *pdev) |
| { |
| snd_soc_unregister_codec(&pdev->dev); |
| return 0; |
| } |
| |
| static struct platform_driver ad1980_codec_driver = { |
| .driver = { |
| .name = "ad1980", |
| .owner = THIS_MODULE, |
| }, |
| |
| .probe = ad1980_probe, |
| .remove = ad1980_remove, |
| }; |
| |
| module_platform_driver(ad1980_codec_driver); |
| |
| MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)"); |
| MODULE_AUTHOR("Roy Huang, Cliff Cai"); |
| MODULE_LICENSE("GPL"); |