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linux/sound/soc/codecs/ad1980.c
Mark Brown 625ea9e6d5
ASoC: ad1980: Update to use maple tree register cache 
The maple tree register cache is based on a much more modern data structure
than the rbtree cache and makes optimisation choices which are probably
more appropriate for modern systems than those made by the rbtree cache. In
v6.5 it has also acquired the ability to generate multi-register writes in
sync operations, bringing performance up to parity with the rbtree cache
there.

Update the ad1980 driver to use the more modern data structure.

Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230713-asoc-ad-maple-v1-2-7d2f35d42b5f@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-07-13 16:20:11 +01:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ad1980.c -- ALSA Soc AD1980 codec support
*
* Copyright: Analog Devices Inc.
* Author: Roy Huang <roy.huang@analog.com>
* Cliff Cai <cliff.cai@analog.com>
*/
/*
* 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_MAPLE,
.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, },
};
#define AD1980_VENDOR_ID 0x41445300
#define AD1980_VENDOR_MASK 0xffffff00
static int ad1980_reset(struct snd_soc_component *component, int try_warm)
{
struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
unsigned int retry_cnt = 0;
int ret;
do {
ret = snd_ac97_reset(ac97, true, AD1980_VENDOR_ID,
AD1980_VENDOR_MASK);
if (ret >= 0)
return 0;
/*
* 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_component_write(component, AC97_AD_SERIAL_CFG, 0x9900);
} while (retry_cnt++ < 10);
dev_err(component->dev, "Failed to reset: AC97 link error\n");
return -EIO;
}
static int ad1980_soc_probe(struct snd_soc_component *component)
{
struct snd_ac97 *ac97;
struct regmap *regmap;
int ret;
u16 vendor_id2;
u16 ext_status;
ac97 = snd_soc_new_ac97_component(component, 0, 0);
if (IS_ERR(ac97)) {
ret = PTR_ERR(ac97);
dev_err(component->dev, "Failed to register AC97 component: %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_component_init_regmap(component, regmap);
snd_soc_component_set_drvdata(component, ac97);
ret = ad1980_reset(component, 0);
if (ret < 0)
goto reset_err;
vendor_id2 = snd_soc_component_read(component, AC97_VENDOR_ID2);
if (vendor_id2 == 0x5374) {
dev_warn(component->dev,
"Found AD1981 - only 2/2 IN/OUT Channels supported\n");
}
/* unmute captures and playbacks volume */
snd_soc_component_write(component, AC97_MASTER, 0x0000);
snd_soc_component_write(component, AC97_PCM, 0x0000);
snd_soc_component_write(component, AC97_REC_GAIN, 0x0000);
snd_soc_component_write(component, AC97_CENTER_LFE_MASTER, 0x0000);
snd_soc_component_write(component, AC97_SURROUND_MASTER, 0x0000);
/*power on LFE/CENTER/Surround DACs*/
ext_status = snd_soc_component_read(component, AC97_EXTENDED_STATUS);
snd_soc_component_write(component, AC97_EXTENDED_STATUS, ext_status&~0x3800);
return 0;
reset_err:
snd_soc_component_exit_regmap(component);
err_free_ac97:
snd_soc_free_ac97_component(ac97);
return ret;
}
static void ad1980_soc_remove(struct snd_soc_component *component)
{
struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
snd_soc_component_exit_regmap(component);
snd_soc_free_ac97_component(ac97);
}
static const struct snd_soc_component_driver soc_component_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),
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
};
static int ad1980_probe(struct platform_device *pdev)
{
return devm_snd_soc_register_component(&pdev->dev,
&soc_component_dev_ad1980, &ad1980_dai, 1);
}
static struct platform_driver ad1980_codec_driver = {
.driver = {
.name = "ad1980",
},
.probe = ad1980_probe,
};
module_platform_driver(ad1980_codec_driver);
MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");
MODULE_AUTHOR("Roy Huang, Cliff Cai");
MODULE_LICENSE("GPL");
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