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linux/sound/hda/codecs/cirrus/cs421x.c
Takashi Iwai 1cb8744a36 ALSA: hda/cirrus: Split to cs420x and cs421x drivers 
Since the codec ops for CS420x and CS421x are fairly independent,
split the cirrus codec driver into two drivers, snd-hda-codec-cs420x
and snd-hda-code-cs421x.  Together with the split, convert to the new
hda_codec_ops probe.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-16-tiwai@suse.de
2025-07-11 09:55:38 +02:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Cirrus Logic CS421x HD-audio codec
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/core.h>
#include <linux/pci.h>
#include <sound/tlv.h>
#include <sound/hda_codec.h>
#include "hda_local.h"
#include "hda_auto_parser.h"
#include "hda_jack.h"
#include "../generic.h"
struct cs_spec {
struct hda_gen_spec gen;
unsigned int gpio_mask;
unsigned int gpio_dir;
unsigned int gpio_data;
unsigned int gpio_eapd_hp; /* EAPD GPIO bit for headphones */
unsigned int gpio_eapd_speaker; /* EAPD GPIO bit for speakers */
/* CS421x */
unsigned int spdif_detect:1;
unsigned int spdif_present:1;
unsigned int sense_b:1;
hda_nid_t vendor_nid;
/* for MBP SPDIF control */
int (*spdif_sw_put)(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
};
/* CS421x boards */
enum {
CS421X_CDB4210,
CS421X_SENSE_B,
CS421X_STUMPY,
};
/* Vendor-specific processing widget */
#define CS_DIG_OUT1_PIN_NID 0x10
#define CS_DIG_OUT2_PIN_NID 0x15
#define CS_DMIC1_PIN_NID 0x0e
#define CS_DMIC2_PIN_NID 0x12
/* coef indices */
#define IDX_SPDIF_STAT 0x0000
#define IDX_SPDIF_CTL 0x0001
#define IDX_ADC_CFG 0x0002
/* SZC bitmask, 4 modes below:
* 0 = immediate,
* 1 = digital immediate, analog zero-cross
* 2 = digtail & analog soft-ramp
* 3 = digital soft-ramp, analog zero-cross
*/
#define CS_COEF_ADC_SZC_MASK (3 << 0)
#define CS_COEF_ADC_MIC_SZC_MODE (3 << 0) /* SZC setup for mic */
#define CS_COEF_ADC_LI_SZC_MODE (3 << 0) /* SZC setup for line-in */
/* PGA mode: 0 = differential, 1 = signle-ended */
#define CS_COEF_ADC_MIC_PGA_MODE (1 << 5) /* PGA setup for mic */
#define CS_COEF_ADC_LI_PGA_MODE (1 << 6) /* PGA setup for line-in */
#define IDX_DAC_CFG 0x0003
/* SZC bitmask, 4 modes below:
* 0 = Immediate
* 1 = zero-cross
* 2 = soft-ramp
* 3 = soft-ramp on zero-cross
*/
#define CS_COEF_DAC_HP_SZC_MODE (3 << 0) /* nid 0x02 */
#define CS_COEF_DAC_LO_SZC_MODE (3 << 2) /* nid 0x03 */
#define CS_COEF_DAC_SPK_SZC_MODE (3 << 4) /* nid 0x04 */
#define IDX_BEEP_CFG 0x0004
/* 0x0008 - test reg key */
/* 0x0009 - 0x0014 -> 12 test regs */
/* 0x0015 - visibility reg */
/*
* Cirrus Logic CS4210
*
* 1 DAC => HP(sense) / Speakers,
* 1 ADC <= LineIn(sense) / MicIn / DMicIn,
* 1 SPDIF OUT => SPDIF Transmitter(sense)
*/
#define CS4210_DAC_NID 0x02
#define CS4210_ADC_NID 0x03
#define CS4210_VENDOR_NID 0x0B
#define CS421X_DMIC_PIN_NID 0x09 /* Port E */
#define CS421X_SPDIF_PIN_NID 0x0A /* Port H */
#define CS421X_IDX_DEV_CFG 0x01
#define CS421X_IDX_ADC_CFG 0x02
#define CS421X_IDX_DAC_CFG 0x03
#define CS421X_IDX_SPK_CTL 0x04
/* Cirrus Logic CS4213 is like CS4210 but does not have SPDIF input/output */
#define CS4213_VENDOR_NID 0x09
static inline int cs_vendor_coef_get(struct hda_codec *codec, unsigned int idx)
{
struct cs_spec *spec = codec->spec;
snd_hda_codec_write(codec, spec->vendor_nid, 0,
AC_VERB_SET_COEF_INDEX, idx);
return snd_hda_codec_read(codec, spec->vendor_nid, 0,
AC_VERB_GET_PROC_COEF, 0);
}
static inline void cs_vendor_coef_set(struct hda_codec *codec, unsigned int idx,
unsigned int coef)
{
struct cs_spec *spec = codec->spec;
snd_hda_codec_write(codec, spec->vendor_nid, 0,
AC_VERB_SET_COEF_INDEX, idx);
snd_hda_codec_write(codec, spec->vendor_nid, 0,
AC_VERB_SET_PROC_COEF, coef);
}
/*
* auto-mute and auto-mic switching
* CS421x auto-output redirecting
* HP/SPK/SPDIF
*/
static void cs_automute(struct hda_codec *codec)
{
struct cs_spec *spec = codec->spec;
/* mute HPs if spdif jack (SENSE_B) is present */
spec->gen.master_mute = !!(spec->spdif_present && spec->sense_b);
snd_hda_gen_update_outputs(codec);
if (spec->gpio_eapd_hp || spec->gpio_eapd_speaker) {
if (spec->gen.automute_speaker)
spec->gpio_data = spec->gen.hp_jack_present ?
spec->gpio_eapd_hp : spec->gpio_eapd_speaker;
else
spec->gpio_data =
spec->gpio_eapd_hp | spec->gpio_eapd_speaker;
snd_hda_codec_write(codec, 0x01, 0,
AC_VERB_SET_GPIO_DATA, spec->gpio_data);
}
}
static bool is_active_pin(struct hda_codec *codec, hda_nid_t nid)
{
unsigned int val;
val = snd_hda_codec_get_pincfg(codec, nid);
return (get_defcfg_connect(val) != AC_JACK_PORT_NONE);
}
static struct cs_spec *cs_alloc_spec(struct hda_codec *codec, int vendor_nid)
{
struct cs_spec *spec;
spec = kzalloc(sizeof(*spec), GFP_KERNEL);
if (!spec)
return NULL;
codec->spec = spec;
spec->vendor_nid = vendor_nid;
codec->power_save_node = 1;
snd_hda_gen_spec_init(&spec->gen);
return spec;
}
/*
* Cirrus Logic CS4210
*
* 1 DAC => HP(sense) / Speakers,
* 1 ADC <= LineIn(sense) / MicIn / DMicIn,
* 1 SPDIF OUT => SPDIF Transmitter(sense)
*/
/* CS4210 board names */
static const struct hda_model_fixup cs421x_models[] = {
{ .id = CS421X_CDB4210, .name = "cdb4210" },
{ .id = CS421X_STUMPY, .name = "stumpy" },
{}
};
static const struct hda_quirk cs421x_fixup_tbl[] = {
/* Test Intel board + CDB2410 */
SND_PCI_QUIRK(0x8086, 0x5001, "DP45SG/CDB4210", CS421X_CDB4210),
{} /* terminator */
};
/* CS4210 board pinconfigs */
/* Default CS4210 (CDB4210)*/
static const struct hda_pintbl cdb4210_pincfgs[] = {
{ 0x05, 0x0321401f },
{ 0x06, 0x90170010 },
{ 0x07, 0x03813031 },
{ 0x08, 0xb7a70037 },
{ 0x09, 0xb7a6003e },
{ 0x0a, 0x034510f0 },
{} /* terminator */
};
/* Stumpy ChromeBox */
static const struct hda_pintbl stumpy_pincfgs[] = {
{ 0x05, 0x022120f0 },
{ 0x06, 0x901700f0 },
{ 0x07, 0x02a120f0 },
{ 0x08, 0x77a70037 },
{ 0x09, 0x77a6003e },
{ 0x0a, 0x434510f0 },
{} /* terminator */
};
/* Setup GPIO/SENSE for each board (if used) */
static void cs421x_fixup_sense_b(struct hda_codec *codec,
const struct hda_fixup *fix, int action)
{
struct cs_spec *spec = codec->spec;
if (action == HDA_FIXUP_ACT_PRE_PROBE)
spec->sense_b = 1;
}
static const struct hda_fixup cs421x_fixups[] = {
[CS421X_CDB4210] = {
.type = HDA_FIXUP_PINS,
.v.pins = cdb4210_pincfgs,
.chained = true,
.chain_id = CS421X_SENSE_B,
},
[CS421X_SENSE_B] = {
.type = HDA_FIXUP_FUNC,
.v.func = cs421x_fixup_sense_b,
},
[CS421X_STUMPY] = {
.type = HDA_FIXUP_PINS,
.v.pins = stumpy_pincfgs,
},
};
static const struct hda_verb cs421x_coef_init_verbs[] = {
{0x0B, AC_VERB_SET_PROC_STATE, 1},
{0x0B, AC_VERB_SET_COEF_INDEX, CS421X_IDX_DEV_CFG},
/*
* Disable Coefficient Index Auto-Increment(DAI)=1,
* PDREF=0
*/
{0x0B, AC_VERB_SET_PROC_COEF, 0x0001 },
{0x0B, AC_VERB_SET_COEF_INDEX, CS421X_IDX_ADC_CFG},
/* ADC SZCMode = Digital Soft Ramp */
{0x0B, AC_VERB_SET_PROC_COEF, 0x0002 },
{0x0B, AC_VERB_SET_COEF_INDEX, CS421X_IDX_DAC_CFG},
{0x0B, AC_VERB_SET_PROC_COEF,
(0x0002 /* DAC SZCMode = Digital Soft Ramp */
| 0x0004 /* Mute DAC on FIFO error */
| 0x0008 /* Enable DAC High Pass Filter */
)},
{} /* terminator */
};
/* Errata: CS4210 rev A1 Silicon
*
* http://www.cirrus.com/en/pubs/errata/
*
* Description:
* 1. Performance degredation is present in the ADC.
* 2. Speaker output is not completely muted upon HP detect.
* 3. Noise is present when clipping occurs on the amplified
* speaker outputs.
*
* Workaround:
* The following verb sequence written to the registers during
* initialization will correct the issues listed above.
*/
static const struct hda_verb cs421x_coef_init_verbs_A1_silicon_fixes[] = {
{0x0B, AC_VERB_SET_PROC_STATE, 0x01}, /* VPW: processing on */
{0x0B, AC_VERB_SET_COEF_INDEX, 0x0006},
{0x0B, AC_VERB_SET_PROC_COEF, 0x9999}, /* Test mode: on */
{0x0B, AC_VERB_SET_COEF_INDEX, 0x000A},
{0x0B, AC_VERB_SET_PROC_COEF, 0x14CB}, /* Chop double */
{0x0B, AC_VERB_SET_COEF_INDEX, 0x0011},
{0x0B, AC_VERB_SET_PROC_COEF, 0xA2D0}, /* Increase ADC current */
{0x0B, AC_VERB_SET_COEF_INDEX, 0x001A},
{0x0B, AC_VERB_SET_PROC_COEF, 0x02A9}, /* Mute speaker */
{0x0B, AC_VERB_SET_COEF_INDEX, 0x001B},
{0x0B, AC_VERB_SET_PROC_COEF, 0X1006}, /* Remove noise */
{} /* terminator */
};
/* Speaker Amp Gain is controlled by the vendor widget's coef 4 */
static const DECLARE_TLV_DB_SCALE(cs421x_speaker_boost_db_scale, 900, 300, 0);
static int cs421x_boost_vol_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 3;
return 0;
}
static int cs421x_boost_vol_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] =
cs_vendor_coef_get(codec, CS421X_IDX_SPK_CTL) & 0x0003;
return 0;
}
static int cs421x_boost_vol_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
unsigned int vol = ucontrol->value.integer.value[0];
unsigned int coef =
cs_vendor_coef_get(codec, CS421X_IDX_SPK_CTL);
unsigned int original_coef = coef;
coef &= ~0x0003;
coef |= (vol & 0x0003);
if (original_coef != coef) {
cs_vendor_coef_set(codec, CS421X_IDX_SPK_CTL, coef);
return 1;
}
return 0;
}
static const struct snd_kcontrol_new cs421x_speaker_boost_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.name = "Speaker Boost Playback Volume",
.info = cs421x_boost_vol_info,
.get = cs421x_boost_vol_get,
.put = cs421x_boost_vol_put,
.tlv = { .p = cs421x_speaker_boost_db_scale },
};
static void cs4210_pinmux_init(struct hda_codec *codec)
{
struct cs_spec *spec = codec->spec;
unsigned int def_conf, coef;
/* GPIO, DMIC_SCL, DMIC_SDA and SENSE_B are multiplexed */
coef = cs_vendor_coef_get(codec, CS421X_IDX_DEV_CFG);
if (spec->gpio_mask)
coef |= 0x0008; /* B1,B2 are GPIOs */
else
coef &= ~0x0008;
if (spec->sense_b)
coef |= 0x0010; /* B2 is SENSE_B, not inverted */
else
coef &= ~0x0010;
cs_vendor_coef_set(codec, CS421X_IDX_DEV_CFG, coef);
if ((spec->gpio_mask || spec->sense_b) &&
is_active_pin(codec, CS421X_DMIC_PIN_NID)) {
/*
* GPIO or SENSE_B forced - disconnect the DMIC pin.
*/
def_conf = snd_hda_codec_get_pincfg(codec, CS421X_DMIC_PIN_NID);
def_conf &= ~AC_DEFCFG_PORT_CONN;
def_conf |= (AC_JACK_PORT_NONE << AC_DEFCFG_PORT_CONN_SHIFT);
snd_hda_codec_set_pincfg(codec, CS421X_DMIC_PIN_NID, def_conf);
}
}
static void cs4210_spdif_automute(struct hda_codec *codec,
struct hda_jack_callback *tbl)
{
struct cs_spec *spec = codec->spec;
bool spdif_present = false;
hda_nid_t spdif_pin = spec->gen.autocfg.dig_out_pins[0];
/* detect on spdif is specific to CS4210 */
if (!spec->spdif_detect ||
spec->vendor_nid != CS4210_VENDOR_NID)
return;
spdif_present = snd_hda_jack_detect(codec, spdif_pin);
if (spdif_present == spec->spdif_present)
return;
spec->spdif_present = spdif_present;
/* SPDIF TX on/off */
snd_hda_set_pin_ctl(codec, spdif_pin, spdif_present ? PIN_OUT : 0);
cs_automute(codec);
}
static void parse_cs421x_digital(struct hda_codec *codec)
{
struct cs_spec *spec = codec->spec;
struct auto_pin_cfg *cfg = &spec->gen.autocfg;
int i;
for (i = 0; i < cfg->dig_outs; i++) {
hda_nid_t nid = cfg->dig_out_pins[i];
if (get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP) {
spec->spdif_detect = 1;
snd_hda_jack_detect_enable_callback(codec, nid,
cs4210_spdif_automute);
}
}
}
static int cs421x_init(struct hda_codec *codec)
{
struct cs_spec *spec = codec->spec;
if (spec->vendor_nid == CS4210_VENDOR_NID) {
snd_hda_sequence_write(codec, cs421x_coef_init_verbs);
snd_hda_sequence_write(codec, cs421x_coef_init_verbs_A1_silicon_fixes);
cs4210_pinmux_init(codec);
}
snd_hda_gen_init(codec);
if (spec->gpio_mask) {
snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_MASK,
spec->gpio_mask);
snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DIRECTION,
spec->gpio_dir);
snd_hda_codec_write(codec, 0x01, 0, AC_VERB_SET_GPIO_DATA,
spec->gpio_data);
}
cs4210_spdif_automute(codec, NULL);
return 0;
}
static void fix_volume_caps(struct hda_codec *codec, hda_nid_t dac)
{
unsigned int caps;
/* set the upper-limit for mixer amp to 0dB */
caps = query_amp_caps(codec, dac, HDA_OUTPUT);
caps &= ~(0x7f << AC_AMPCAP_NUM_STEPS_SHIFT);
caps |= ((caps >> AC_AMPCAP_OFFSET_SHIFT) & 0x7f)
<< AC_AMPCAP_NUM_STEPS_SHIFT;
snd_hda_override_amp_caps(codec, dac, HDA_OUTPUT, caps);
}
static int cs421x_parse_auto_config(struct hda_codec *codec)
{
struct cs_spec *spec = codec->spec;
hda_nid_t dac = CS4210_DAC_NID;
int err;
fix_volume_caps(codec, dac);
err = snd_hda_parse_pin_defcfg(codec, &spec->gen.autocfg, NULL, 0);
if (err < 0)
return err;
err = snd_hda_gen_parse_auto_config(codec, &spec->gen.autocfg);
if (err < 0)
return err;
parse_cs421x_digital(codec);
if (spec->gen.autocfg.speaker_outs &&
spec->vendor_nid == CS4210_VENDOR_NID) {
if (!snd_hda_gen_add_kctl(&spec->gen, NULL,
&cs421x_speaker_boost_ctl))
return -ENOMEM;
}
return 0;
}
/*
* Manage PDREF, when transitioning to D3hot
* (DAC,ADC) -> D3, PDREF=1, AFG->D3
*/
static int cs421x_suspend(struct hda_codec *codec)
{
struct cs_spec *spec = codec->spec;
unsigned int coef;
snd_hda_shutup_pins(codec);
snd_hda_codec_write(codec, CS4210_DAC_NID, 0,
AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
snd_hda_codec_write(codec, CS4210_ADC_NID, 0,
AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
if (spec->vendor_nid == CS4210_VENDOR_NID) {
coef = cs_vendor_coef_get(codec, CS421X_IDX_DEV_CFG);
coef |= 0x0004; /* PDREF */
cs_vendor_coef_set(codec, CS421X_IDX_DEV_CFG, coef);
}
return 0;
}
static int cs421x_probe(struct hda_codec *codec, const struct hda_device_id *id)
{
struct cs_spec *spec;
int err;
spec = cs_alloc_spec(codec, id->driver_data);
if (!spec)
return -ENOMEM;
spec->gen.automute_hook = cs_automute;
if (spec->vendor_nid == CS4210_VENDOR_NID) {
snd_hda_pick_fixup(codec, cs421x_models, cs421x_fixup_tbl,
cs421x_fixups);
snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE);
/*
* Update the GPIO/DMIC/SENSE_B pinmux before the configuration
* is auto-parsed. If GPIO or SENSE_B is forced, DMIC input
* is disabled.
*/
cs4210_pinmux_init(codec);
}
err = cs421x_parse_auto_config(codec);
if (err < 0)
goto error;
snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PROBE);
return 0;
error:
snd_hda_gen_remove(codec);
return err;
}
static const struct hda_codec_ops cs421x_codec_ops = {
.probe = cs421x_probe,
.remove = snd_hda_gen_remove,
.build_controls = snd_hda_gen_build_controls,
.build_pcms = snd_hda_gen_build_pcms,
.init = cs421x_init,
.unsol_event = snd_hda_jack_unsol_event,
.suspend = cs421x_suspend,
.stream_pm = snd_hda_gen_stream_pm,
};
/*
* driver entries
*/
static const struct hda_device_id snd_hda_id_cs421x[] = {
HDA_CODEC_ID_MODEL(0x10134210, "CS4210", CS4210_VENDOR_NID),
HDA_CODEC_ID_MODEL(0x10134213, "CS4213", CS4213_VENDOR_NID),
{} /* terminator */
};
MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_cs421x);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Cirrus Logic CS421x HD-audio codec");
static struct hda_codec_driver cs421x_driver = {
.id = snd_hda_id_cs421x,
.ops = &cs421x_codec_ops,
};
module_hda_codec_driver(cs421x_driver);
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