--- /dev/null
+/*
+ * 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",
+ },
+
+ .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");
Code Review / kvmfornfv.git / blobdiff