/* * ad1980.c -- ALSA Soc AD1980 codec support * * Copyright: Analog Device Inc. * Author: Roy Huang * Cliff Cai * * 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 #include #include #include #include #include #include #include #include #include /* * 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); dev_err(codec->dev, "Failed to reset: AC97 link error\n"); return -EIO; } static int ad1980_soc_probe(struct snd_soc_codec *codec) { int ret; u16 vendor_id2; u16 ext_status; ret = snd_soc_new_ac97_codec(codec, soc_ac97_ops, 0); if (ret < 0) { dev_err(codec->dev, "Failed to register AC97 codec\n"); return ret; } ret = ad1980_reset(codec, 0); if (ret < 0) 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 { 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); /*power on LFE/CENTER/Surround DACs*/ ext_status = ac97_read(codec, AC97_EXTENDED_STATUS); ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800); 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, .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");