| /* |
| * 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 <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/ac97_codec.h> |
| #include <sound/initval.h> |
| #include <sound/soc.h> |
| |
| #include "ad1980.h" |
| |
| /* |
| * 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 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 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, |
| .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) |
| { |
| 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) |
| return 1; |
| } |
| |
| soc_ac97_ops->reset(codec->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); |
| |
| if (ac97_read(codec, AC97_RESET) == 0x0090) |
| return 0; |
| } while (retry_cnt++ < 10); |
| |
| printk(KERN_ERR "AD1980 AC97 reset failed\n"); |
| return -EIO; |
| } |
| |
| static int ad1980_soc_probe(struct snd_soc_codec *codec) |
| { |
| 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"); |
| return ret; |
| } |
| |
| ret = ad1980_reset(codec, 0); |
| if (ret < 0) { |
| printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n"); |
| goto reset_err; |
| } |
| |
| /* Read out vendor ID to make sure it is ad1980 */ |
| if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144) { |
| ret = -ENODEV; |
| goto reset_err; |
| } |
| |
| vendor_id2 = ac97_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"); |
| } |
| } |
| |
| /* 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); |
| |
| /*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)); |
| |
| return 0; |
| |
| reset_err: |
| snd_soc_free_ac97_codec(codec); |
| return ret; |
| } |
| |
| static int ad1980_soc_remove(struct snd_soc_codec *codec) |
| { |
| snd_soc_free_ac97_codec(codec); |
| 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, |
| |
| .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"); |
