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patch_cs8409.c
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patch_cs8409.c
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HD audio interface patch for Cirrus Logic CS8409 HDA bridge chip
*
* Copyright (C) 2021 Cirrus Logic, Inc. and
* Cirrus Logic International Semiconductor Ltd.
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/core.h>
#include <linux/mutex.h>
#include <linux/iopoll.h>
#include "patch_cs8409.h"
/******************************************************************************
* CS8409 Specific Functions
******************************************************************************/
static int cs8409_parse_auto_config(struct hda_codec *codec)
{
struct cs8409_spec *spec = codec->spec;
int err;
int i;
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;
/* keep the ADCs powered up when it's dynamically switchable */
if (spec->gen.dyn_adc_switch) {
unsigned int done = 0;
for (i = 0; i < spec->gen.input_mux.num_items; i++) {
int idx = spec->gen.dyn_adc_idx[i];
if (done & (1 << idx))
continue;
snd_hda_gen_fix_pin_power(codec, spec->gen.adc_nids[idx]);
done |= 1 << idx;
}
}
return 0;
}
static void cs8409_disable_i2c_clock_worker(struct work_struct *work);
static struct cs8409_spec *cs8409_alloc_spec(struct hda_codec *codec)
{
struct cs8409_spec *spec;
spec = kzalloc(sizeof(*spec), GFP_KERNEL);
if (!spec)
return NULL;
codec->spec = spec;
spec->codec = codec;
codec->power_save_node = 1;
mutex_init(&spec->i2c_mux);
INIT_DELAYED_WORK(&spec->i2c_clk_work, cs8409_disable_i2c_clock_worker);
snd_hda_gen_spec_init(&spec->gen);
return spec;
}
static inline int cs8409_vendor_coef_get(struct hda_codec *codec, unsigned int idx)
{
snd_hda_codec_write(codec, CS8409_PIN_VENDOR_WIDGET, 0, AC_VERB_SET_COEF_INDEX, idx);
return snd_hda_codec_read(codec, CS8409_PIN_VENDOR_WIDGET, 0, AC_VERB_GET_PROC_COEF, 0);
}
static inline void cs8409_vendor_coef_set(struct hda_codec *codec, unsigned int idx,
unsigned int coef)
{
snd_hda_codec_write(codec, CS8409_PIN_VENDOR_WIDGET, 0, AC_VERB_SET_COEF_INDEX, idx);
snd_hda_codec_write(codec, CS8409_PIN_VENDOR_WIDGET, 0, AC_VERB_SET_PROC_COEF, coef);
}
/*
* cs8409_enable_i2c_clock - Disable I2C clocks
* @codec: the codec instance
* Disable I2C clocks.
* This must be called when the i2c mutex is unlocked.
*/
static void cs8409_disable_i2c_clock(struct hda_codec *codec)
{
struct cs8409_spec *spec = codec->spec;
mutex_lock(&spec->i2c_mux);
if (spec->i2c_clck_enabled) {
cs8409_vendor_coef_set(spec->codec, 0x0,
cs8409_vendor_coef_get(spec->codec, 0x0) & 0xfffffff7);
spec->i2c_clck_enabled = 0;
}
mutex_unlock(&spec->i2c_mux);
}
/*
* cs8409_disable_i2c_clock_worker - Worker that disable the I2C Clock after 25ms without use
*/
static void cs8409_disable_i2c_clock_worker(struct work_struct *work)
{
struct cs8409_spec *spec = container_of(work, struct cs8409_spec, i2c_clk_work.work);
cs8409_disable_i2c_clock(spec->codec);
}
/*
* cs8409_enable_i2c_clock - Enable I2C clocks
* @codec: the codec instance
* Enable I2C clocks.
* This must be called when the i2c mutex is locked.
*/
static void cs8409_enable_i2c_clock(struct hda_codec *codec)
{
struct cs8409_spec *spec = codec->spec;
/* Cancel the disable timer, but do not wait for any running disable functions to finish.
* If the disable timer runs out before cancel, the delayed work thread will be blocked,
* waiting for the mutex to become unlocked. This mutex will be locked for the duration of
* any i2c transaction, so the disable function will run to completion immediately
* afterwards in the scenario. The next enable call will re-enable the clock, regardless.
*/
cancel_delayed_work(&spec->i2c_clk_work);
if (!spec->i2c_clck_enabled) {
cs8409_vendor_coef_set(codec, 0x0, cs8409_vendor_coef_get(codec, 0x0) | 0x8);
spec->i2c_clck_enabled = 1;
}
queue_delayed_work(system_power_efficient_wq, &spec->i2c_clk_work, msecs_to_jiffies(25));
}
/**
* cs8409_i2c_wait_complete - Wait for I2C transaction
* @codec: the codec instance
*
* Wait for I2C transaction to complete.
* Return -ETIMEDOUT if transaction wait times out.
*/
static int cs8409_i2c_wait_complete(struct hda_codec *codec)
{
unsigned int retval;
return read_poll_timeout(cs8409_vendor_coef_get, retval, retval & 0x18,
CS42L42_I2C_SLEEP_US, CS42L42_I2C_TIMEOUT_US, false, codec, CS8409_I2C_STS);
}
/**
* cs8409_set_i2c_dev_addr - Set i2c address for transaction
* @codec: the codec instance
* @addr: I2C Address
*/
static void cs8409_set_i2c_dev_addr(struct hda_codec *codec, unsigned int addr)
{
struct cs8409_spec *spec = codec->spec;
if (spec->dev_addr != addr) {
cs8409_vendor_coef_set(codec, CS8409_I2C_ADDR, addr);
spec->dev_addr = addr;
}
}
/**
* cs8409_i2c_set_page - CS8409 I2C set page register.
* @scodec: the codec instance
* @i2c_reg: Page register
*
* Returns negative on error.
*/
static int cs8409_i2c_set_page(struct sub_codec *scodec, unsigned int i2c_reg)
{
struct hda_codec *codec = scodec->codec;
if (scodec->paged && (scodec->last_page != (i2c_reg >> 8))) {
cs8409_vendor_coef_set(codec, CS8409_I2C_QWRITE, i2c_reg >> 8);
if (cs8409_i2c_wait_complete(codec) < 0)
return -EIO;
scodec->last_page = i2c_reg >> 8;
}
return 0;
}
/**
* cs8409_i2c_read - CS8409 I2C Read.
* @scodec: the codec instance
* @addr: Register to read
*
* Returns negative on error, otherwise returns read value in bits 0-7.
*/
static int cs8409_i2c_read(struct sub_codec *scodec, unsigned int addr)
{
struct hda_codec *codec = scodec->codec;
struct cs8409_spec *spec = codec->spec;
unsigned int i2c_reg_data;
unsigned int read_data;
if (scodec->suspended)
return -EPERM;
mutex_lock(&spec->i2c_mux);
cs8409_enable_i2c_clock(codec);
cs8409_set_i2c_dev_addr(codec, scodec->addr);
if (cs8409_i2c_set_page(scodec, addr))
goto error;
i2c_reg_data = (addr << 8) & 0x0ffff;
cs8409_vendor_coef_set(codec, CS8409_I2C_QREAD, i2c_reg_data);
if (cs8409_i2c_wait_complete(codec) < 0)
goto error;
/* Register in bits 15-8 and the data in 7-0 */
read_data = cs8409_vendor_coef_get(codec, CS8409_I2C_QREAD);
mutex_unlock(&spec->i2c_mux);
return read_data & 0x0ff;
error:
mutex_unlock(&spec->i2c_mux);
codec_err(codec, "%s() Failed 0x%02x : 0x%04x\n", __func__, scodec->addr, addr);
return -EIO;
}
/**
* cs8409_i2c_bulk_read - CS8409 I2C Read Sequence.
* @scodec: the codec instance
* @seq: Register Sequence to read
* @count: Number of registeres to read
*
* Returns negative on error, values are read into value element of cs8409_i2c_param sequence.
*/
static int cs8409_i2c_bulk_read(struct sub_codec *scodec, struct cs8409_i2c_param *seq, int count)
{
struct hda_codec *codec = scodec->codec;
struct cs8409_spec *spec = codec->spec;
unsigned int i2c_reg_data;
int i;
if (scodec->suspended)
return -EPERM;
mutex_lock(&spec->i2c_mux);
cs8409_set_i2c_dev_addr(codec, scodec->addr);
for (i = 0; i < count; i++) {
cs8409_enable_i2c_clock(codec);
if (cs8409_i2c_set_page(scodec, seq[i].addr))
goto error;
i2c_reg_data = (seq[i].addr << 8) & 0x0ffff;
cs8409_vendor_coef_set(codec, CS8409_I2C_QREAD, i2c_reg_data);
if (cs8409_i2c_wait_complete(codec) < 0)
goto error;
seq[i].value = cs8409_vendor_coef_get(codec, CS8409_I2C_QREAD) & 0xff;
}
mutex_unlock(&spec->i2c_mux);
return 0;
error:
mutex_unlock(&spec->i2c_mux);
codec_err(codec, "I2C Bulk Write Failed 0x%02x\n", scodec->addr);
return -EIO;
}
/**
* cs8409_i2c_write - CS8409 I2C Write.
* @scodec: the codec instance
* @addr: Register to write to
* @value: Data to write
*
* Returns negative on error, otherwise returns 0.
*/
static int cs8409_i2c_write(struct sub_codec *scodec, unsigned int addr, unsigned int value)
{
struct hda_codec *codec = scodec->codec;
struct cs8409_spec *spec = codec->spec;
unsigned int i2c_reg_data;
if (scodec->suspended)
return -EPERM;
mutex_lock(&spec->i2c_mux);
cs8409_enable_i2c_clock(codec);
cs8409_set_i2c_dev_addr(codec, scodec->addr);
if (cs8409_i2c_set_page(scodec, addr))
goto error;
i2c_reg_data = ((addr << 8) & 0x0ff00) | (value & 0x0ff);
cs8409_vendor_coef_set(codec, CS8409_I2C_QWRITE, i2c_reg_data);
if (cs8409_i2c_wait_complete(codec) < 0)
goto error;
mutex_unlock(&spec->i2c_mux);
return 0;
error:
mutex_unlock(&spec->i2c_mux);
codec_err(codec, "%s() Failed 0x%02x : 0x%04x\n", __func__, scodec->addr, addr);
return -EIO;
}
/**
* cs8409_i2c_bulk_write - CS8409 I2C Write Sequence.
* @scodec: the codec instance
* @seq: Register Sequence to write
* @count: Number of registeres to write
*
* Returns negative on error.
*/
static int cs8409_i2c_bulk_write(struct sub_codec *scodec, const struct cs8409_i2c_param *seq,
int count)
{
struct hda_codec *codec = scodec->codec;
struct cs8409_spec *spec = codec->spec;
unsigned int i2c_reg_data;
int i;
if (scodec->suspended)
return -EPERM;
mutex_lock(&spec->i2c_mux);
cs8409_set_i2c_dev_addr(codec, scodec->addr);
for (i = 0; i < count; i++) {
cs8409_enable_i2c_clock(codec);
if (cs8409_i2c_set_page(scodec, seq[i].addr))
goto error;
i2c_reg_data = ((seq[i].addr << 8) & 0x0ff00) | (seq[i].value & 0x0ff);
cs8409_vendor_coef_set(codec, CS8409_I2C_QWRITE, i2c_reg_data);
if (cs8409_i2c_wait_complete(codec) < 0)
goto error;
}
mutex_unlock(&spec->i2c_mux);
return 0;
error:
mutex_unlock(&spec->i2c_mux);
codec_err(codec, "I2C Bulk Write Failed 0x%02x\n", scodec->addr);
return -EIO;
}
static int cs8409_init(struct hda_codec *codec)
{
int ret = snd_hda_gen_init(codec);
if (!ret)
snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_INIT);
return ret;
}
static int cs8409_build_controls(struct hda_codec *codec)
{
int err;
err = snd_hda_gen_build_controls(codec);
if (err < 0)
return err;
snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_BUILD);
return 0;
}
/* Enable/Disable Unsolicited Response */
static void cs8409_enable_ur(struct hda_codec *codec, int flag)
{
struct cs8409_spec *spec = codec->spec;
unsigned int ur_gpios = 0;
int i;
for (i = 0; i < spec->num_scodecs; i++)
ur_gpios |= spec->scodecs[i]->irq_mask;
snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_GPIO_UNSOLICITED_RSP_MASK,
flag ? ur_gpios : 0);
snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_UNSOLICITED_ENABLE,
flag ? AC_UNSOL_ENABLED : 0);
}
static void cs8409_fix_caps(struct hda_codec *codec, unsigned int nid)
{
int caps;
/* CS8409 is simple HDA bridge and intended to be used with a remote
* companion codec. Most of input/output PIN(s) have only basic
* capabilities. Receive and Transmit NID(s) have only OUTC and INC
* capabilities and no presence detect capable (PDC) and call to
* snd_hda_gen_build_controls() will mark them as non detectable
* phantom jacks. However, a companion codec may be
* connected to these pins which supports jack detect
* capabilities. We have to override pin capabilities,
* otherwise they will not be created as input devices.
*/
caps = snd_hdac_read_parm(&codec->core, nid, AC_PAR_PIN_CAP);
if (caps >= 0)
snd_hdac_override_parm(&codec->core, nid, AC_PAR_PIN_CAP,
(caps | (AC_PINCAP_IMP_SENSE | AC_PINCAP_PRES_DETECT)));
snd_hda_override_wcaps(codec, nid, (get_wcaps(codec, nid) | AC_WCAP_UNSOL_CAP));
}
/******************************************************************************
* CS42L42 Specific Functions
******************************************************************************/
int cs42l42_volume_info(struct snd_kcontrol *kctrl, struct snd_ctl_elem_info *uinfo)
{
unsigned int ofs = get_amp_offset(kctrl);
u8 chs = get_amp_channels(kctrl);
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->value.integer.step = 1;
uinfo->count = chs == 3 ? 2 : 1;
switch (ofs) {
case CS42L42_VOL_DAC:
uinfo->value.integer.min = CS42L42_HP_VOL_REAL_MIN;
uinfo->value.integer.max = CS42L42_HP_VOL_REAL_MAX;
break;
case CS42L42_VOL_ADC:
uinfo->value.integer.min = CS42L42_AMIC_VOL_REAL_MIN;
uinfo->value.integer.max = CS42L42_AMIC_VOL_REAL_MAX;
break;
default:
break;
}
return 0;
}
int cs42l42_volume_get(struct snd_kcontrol *kctrl, struct snd_ctl_elem_value *uctrl)
{
struct hda_codec *codec = snd_kcontrol_chip(kctrl);
struct cs8409_spec *spec = codec->spec;
struct sub_codec *cs42l42 = spec->scodecs[get_amp_index(kctrl)];
int chs = get_amp_channels(kctrl);
unsigned int ofs = get_amp_offset(kctrl);
long *valp = uctrl->value.integer.value;
switch (ofs) {
case CS42L42_VOL_DAC:
if (chs & BIT(0))
*valp++ = cs42l42->vol[ofs];
if (chs & BIT(1))
*valp = cs42l42->vol[ofs+1];
break;
case CS42L42_VOL_ADC:
if (chs & BIT(0))
*valp = cs42l42->vol[ofs];
break;
default:
break;
}
return 0;
}
static void cs42l42_mute(struct sub_codec *cs42l42, int vol_type,
unsigned int chs, bool mute)
{
if (mute) {
if (vol_type == CS42L42_VOL_DAC) {
if (chs & BIT(0))
cs8409_i2c_write(cs42l42, CS42L42_REG_HS_VOL_CHA, 0x3f);
if (chs & BIT(1))
cs8409_i2c_write(cs42l42, CS42L42_REG_HS_VOL_CHB, 0x3f);
} else if (vol_type == CS42L42_VOL_ADC) {
if (chs & BIT(0))
cs8409_i2c_write(cs42l42, CS42L42_REG_AMIC_VOL, 0x9f);
}
} else {
if (vol_type == CS42L42_VOL_DAC) {
if (chs & BIT(0))
cs8409_i2c_write(cs42l42, CS42L42_REG_HS_VOL_CHA,
-(cs42l42->vol[CS42L42_DAC_CH0_VOL_OFFSET])
& CS42L42_REG_HS_VOL_MASK);
if (chs & BIT(1))
cs8409_i2c_write(cs42l42, CS42L42_REG_HS_VOL_CHB,
-(cs42l42->vol[CS42L42_DAC_CH1_VOL_OFFSET])
& CS42L42_REG_HS_VOL_MASK);
} else if (vol_type == CS42L42_VOL_ADC) {
if (chs & BIT(0))
cs8409_i2c_write(cs42l42, CS42L42_REG_AMIC_VOL,
cs42l42->vol[CS42L42_ADC_VOL_OFFSET]
& CS42L42_REG_AMIC_VOL_MASK);
}
}
}
int cs42l42_volume_put(struct snd_kcontrol *kctrl, struct snd_ctl_elem_value *uctrl)
{
struct hda_codec *codec = snd_kcontrol_chip(kctrl);
struct cs8409_spec *spec = codec->spec;
struct sub_codec *cs42l42 = spec->scodecs[get_amp_index(kctrl)];
int chs = get_amp_channels(kctrl);
unsigned int ofs = get_amp_offset(kctrl);
long *valp = uctrl->value.integer.value;
switch (ofs) {
case CS42L42_VOL_DAC:
if (chs & BIT(0))
cs42l42->vol[ofs] = *valp;
if (chs & BIT(1)) {
valp++;
cs42l42->vol[ofs + 1] = *valp;
}
if (spec->playback_started)
cs42l42_mute(cs42l42, CS42L42_VOL_DAC, chs, false);
break;
case CS42L42_VOL_ADC:
if (chs & BIT(0))
cs42l42->vol[ofs] = *valp;
if (spec->capture_started)
cs42l42_mute(cs42l42, CS42L42_VOL_ADC, chs, false);
break;
default:
break;
}
return 0;
}
static void cs42l42_playback_pcm_hook(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
struct snd_pcm_substream *substream,
int action)
{
struct cs8409_spec *spec = codec->spec;
struct sub_codec *cs42l42;
int i;
bool mute;
switch (action) {
case HDA_GEN_PCM_ACT_PREPARE:
mute = false;
spec->playback_started = 1;
break;
case HDA_GEN_PCM_ACT_CLEANUP:
mute = true;
spec->playback_started = 0;
break;
default:
return;
}
for (i = 0; i < spec->num_scodecs; i++) {
cs42l42 = spec->scodecs[i];
cs42l42_mute(cs42l42, CS42L42_VOL_DAC, 0x3, mute);
}
}
static void cs42l42_capture_pcm_hook(struct hda_pcm_stream *hinfo,
struct hda_codec *codec,
struct snd_pcm_substream *substream,
int action)
{
struct cs8409_spec *spec = codec->spec;
struct sub_codec *cs42l42;
int i;
bool mute;
switch (action) {
case HDA_GEN_PCM_ACT_PREPARE:
mute = false;
spec->capture_started = 1;
break;
case HDA_GEN_PCM_ACT_CLEANUP:
mute = true;
spec->capture_started = 0;
break;
default:
return;
}
for (i = 0; i < spec->num_scodecs; i++) {
cs42l42 = spec->scodecs[i];
cs42l42_mute(cs42l42, CS42L42_VOL_ADC, 0x3, mute);
}
}
/* Configure CS42L42 slave codec for jack autodetect */
static void cs42l42_enable_jack_detect(struct sub_codec *cs42l42)
{
cs8409_i2c_write(cs42l42, 0x1b70, cs42l42->hsbias_hiz);
/* Clear WAKE# */
cs8409_i2c_write(cs42l42, 0x1b71, 0x00C1);
/* Wait ~2.5ms */
usleep_range(2500, 3000);
/* Set mode WAKE# output follows the combination logic directly */
cs8409_i2c_write(cs42l42, 0x1b71, 0x00C0);
/* Clear interrupts status */
cs8409_i2c_read(cs42l42, 0x130f);
/* Enable interrupt */
cs8409_i2c_write(cs42l42, 0x1320, 0xF3);
}
/* Enable and run CS42L42 slave codec jack auto detect */
static void cs42l42_run_jack_detect(struct sub_codec *cs42l42)
{
/* Clear interrupts */
cs8409_i2c_read(cs42l42, 0x1308);
cs8409_i2c_read(cs42l42, 0x1b77);
cs8409_i2c_write(cs42l42, 0x1320, 0xFF);
cs8409_i2c_read(cs42l42, 0x130f);
cs8409_i2c_write(cs42l42, 0x1102, 0x87);
cs8409_i2c_write(cs42l42, 0x1f06, 0x86);
cs8409_i2c_write(cs42l42, 0x1b74, 0x07);
cs8409_i2c_write(cs42l42, 0x131b, 0xFD);
cs8409_i2c_write(cs42l42, 0x1120, 0x80);
/* Wait ~20ms*/
usleep_range(20000, 25000);
cs8409_i2c_write(cs42l42, 0x111f, 0x77);
cs8409_i2c_write(cs42l42, 0x1120, 0xc0);
}
static int cs42l42_handle_tip_sense(struct sub_codec *cs42l42, unsigned int reg_ts_status)
{
int status_changed = 0;
/* TIP_SENSE INSERT/REMOVE */
switch (reg_ts_status) {
case CS42L42_JACK_INSERTED:
if (!cs42l42->hp_jack_in) {
if (cs42l42->no_type_dect) {
status_changed = 1;
cs42l42->hp_jack_in = 1;
cs42l42->mic_jack_in = 0;
} else {
cs42l42_run_jack_detect(cs42l42);
}
}
break;
case CS42L42_JACK_REMOVED:
if (cs42l42->hp_jack_in || cs42l42->mic_jack_in) {
status_changed = 1;
cs42l42->hp_jack_in = 0;
cs42l42->mic_jack_in = 0;
}
break;
default:
/* jack in transition */
break;
}
return status_changed;
}
static int cs42l42_jack_unsol_event(struct sub_codec *cs42l42)
{
int status_changed = 0;
int reg_cdc_status;
int reg_hs_status;
int reg_ts_status;
int type;
/* Read jack detect status registers */
reg_cdc_status = cs8409_i2c_read(cs42l42, 0x1308);
reg_hs_status = cs8409_i2c_read(cs42l42, 0x1124);
reg_ts_status = cs8409_i2c_read(cs42l42, 0x130f);
/* If status values are < 0, read error has occurred. */
if (reg_cdc_status < 0 || reg_hs_status < 0 || reg_ts_status < 0)
return -EIO;
/* HSDET_AUTO_DONE */
if (reg_cdc_status & CS42L42_HSDET_AUTO_DONE) {
/* Disable HSDET_AUTO_DONE */
cs8409_i2c_write(cs42l42, 0x131b, 0xFF);
type = ((reg_hs_status & CS42L42_HSTYPE_MASK) + 1);
if (cs42l42->no_type_dect) {
status_changed = cs42l42_handle_tip_sense(cs42l42, reg_ts_status);
} else if (type == 4) {
/* Type 4 not supported */
status_changed = cs42l42_handle_tip_sense(cs42l42, CS42L42_JACK_REMOVED);
} else {
if (!cs42l42->hp_jack_in) {
status_changed = 1;
cs42l42->hp_jack_in = 1;
}
/* type = 3 has no mic */
if ((!cs42l42->mic_jack_in) && (type != 3)) {
status_changed = 1;
cs42l42->mic_jack_in = 1;
}
}
/* Configure the HSDET mode. */
cs8409_i2c_write(cs42l42, 0x1120, 0x80);
/* Enable the HPOUT ground clamp and configure the HP pull-down */
cs8409_i2c_write(cs42l42, 0x1F06, 0x02);
/* Re-Enable Tip Sense Interrupt */
cs8409_i2c_write(cs42l42, 0x1320, 0xF3);
} else {
status_changed = cs42l42_handle_tip_sense(cs42l42, reg_ts_status);
}
return status_changed;
}
static void cs42l42_resume(struct sub_codec *cs42l42)
{
struct hda_codec *codec = cs42l42->codec;
unsigned int gpio_data;
struct cs8409_i2c_param irq_regs[] = {
{ 0x1308, 0x00 },
{ 0x1309, 0x00 },
{ 0x130A, 0x00 },
{ 0x130F, 0x00 },
};
/* Bring CS42L42 out of Reset */
gpio_data = snd_hda_codec_read(codec, CS8409_PIN_AFG, 0, AC_VERB_GET_GPIO_DATA, 0);
gpio_data |= cs42l42->reset_gpio;
snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_GPIO_DATA, gpio_data);
usleep_range(10000, 15000);
cs42l42->suspended = 0;
/* Initialize CS42L42 companion codec */
cs8409_i2c_bulk_write(cs42l42, cs42l42->init_seq, cs42l42->init_seq_num);
usleep_range(20000, 25000);
/* Clear interrupts, by reading interrupt status registers */
cs8409_i2c_bulk_read(cs42l42, irq_regs, ARRAY_SIZE(irq_regs));
if (cs42l42->full_scale_vol)
cs8409_i2c_write(cs42l42, 0x2001, 0x01);
/* we have to explicitly allow unsol event handling even during the
* resume phase so that the jack event is processed properly
*/
snd_hda_codec_allow_unsol_events(cs42l42->codec);
cs42l42_enable_jack_detect(cs42l42);
}
#ifdef CONFIG_PM
static void cs42l42_suspend(struct sub_codec *cs42l42)
{
struct hda_codec *codec = cs42l42->codec;
unsigned int gpio_data;
int reg_cdc_status = 0;
const struct cs8409_i2c_param cs42l42_pwr_down_seq[] = {
{ 0x1F06, 0x02 },
{ 0x1129, 0x00 },
{ 0x2301, 0x3F },
{ 0x2302, 0x3F },
{ 0x2303, 0x3F },
{ 0x2001, 0x0F },
{ 0x2A01, 0x00 },
{ 0x1207, 0x00 },
{ 0x1101, 0xFE },
{ 0x1102, 0x8C },
{ 0x1101, 0xFF },
};
cs8409_i2c_bulk_write(cs42l42, cs42l42_pwr_down_seq, ARRAY_SIZE(cs42l42_pwr_down_seq));
if (read_poll_timeout(cs8409_i2c_read, reg_cdc_status,
(reg_cdc_status & 0x1), CS42L42_PDN_SLEEP_US, CS42L42_PDN_TIMEOUT_US,
true, cs42l42, 0x1308) < 0)
codec_warn(codec, "Timeout waiting for PDN_DONE for CS42L42\n");
/* Power down CS42L42 ASP/EQ/MIX/HP */
cs8409_i2c_write(cs42l42, 0x1102, 0x9C);
cs42l42->suspended = 1;
cs42l42->last_page = 0;
cs42l42->hp_jack_in = 0;
cs42l42->mic_jack_in = 0;
/* Put CS42L42 into Reset */
gpio_data = snd_hda_codec_read(codec, CS8409_PIN_AFG, 0, AC_VERB_GET_GPIO_DATA, 0);
gpio_data &= ~cs42l42->reset_gpio;
snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_GPIO_DATA, gpio_data);
}
#endif
static void cs8409_free(struct hda_codec *codec)
{
struct cs8409_spec *spec = codec->spec;
/* Cancel i2c clock disable timer, and disable clock if left enabled */
cancel_delayed_work_sync(&spec->i2c_clk_work);
cs8409_disable_i2c_clock(codec);
snd_hda_gen_free(codec);
}
/******************************************************************************
* BULLSEYE / WARLOCK / CYBORG Specific Functions
* CS8409/CS42L42
******************************************************************************/
/*
* In the case of CS8409 we do not have unsolicited events from NID's 0x24
* and 0x34 where hs mic and hp are connected. Companion codec CS42L42 will
* generate interrupt via gpio 4 to notify jack events. We have to overwrite
* generic snd_hda_jack_unsol_event(), read CS42L42 jack detect status registers
* and then notify status via generic snd_hda_jack_unsol_event() call.
*/
static void cs8409_cs42l42_jack_unsol_event(struct hda_codec *codec, unsigned int res)
{
struct cs8409_spec *spec = codec->spec;
struct sub_codec *cs42l42 = spec->scodecs[CS8409_CODEC0];
struct hda_jack_tbl *jk;
/* jack_unsol_event() will be called every time gpio line changing state.
* In this case gpio4 line goes up as a result of reading interrupt status
* registers in previous cs8409_jack_unsol_event() call.
* We don't need to handle this event, ignoring...
*/
if (res & cs42l42->irq_mask)
return;
if (cs42l42_jack_unsol_event(cs42l42)) {
snd_hda_set_pin_ctl(codec, CS8409_CS42L42_SPK_PIN_NID,
cs42l42->hp_jack_in ? 0 : PIN_OUT);
/* Report jack*/
jk = snd_hda_jack_tbl_get_mst(codec, CS8409_CS42L42_HP_PIN_NID, 0);
if (jk)
snd_hda_jack_unsol_event(codec, (jk->tag << AC_UNSOL_RES_TAG_SHIFT) &
AC_UNSOL_RES_TAG);
/* Report jack*/
jk = snd_hda_jack_tbl_get_mst(codec, CS8409_CS42L42_AMIC_PIN_NID, 0);
if (jk)
snd_hda_jack_unsol_event(codec, (jk->tag << AC_UNSOL_RES_TAG_SHIFT) &
AC_UNSOL_RES_TAG);
}
}
#ifdef CONFIG_PM
/* Manage PDREF, when transition to D3hot */
static int cs8409_cs42l42_suspend(struct hda_codec *codec)
{
struct cs8409_spec *spec = codec->spec;
int i;
spec->init_done = 0;
cs8409_enable_ur(codec, 0);
for (i = 0; i < spec->num_scodecs; i++)
cs42l42_suspend(spec->scodecs[i]);
/* Cancel i2c clock disable timer, and disable clock if left enabled */
cancel_delayed_work_sync(&spec->i2c_clk_work);
cs8409_disable_i2c_clock(codec);
snd_hda_shutup_pins(codec);
return 0;
}
#endif
/* Vendor specific HW configuration
* PLL, ASP, I2C, SPI, GPIOs, DMIC etc...
*/
static void cs8409_cs42l42_hw_init(struct hda_codec *codec)
{
const struct cs8409_cir_param *seq = cs8409_cs42l42_hw_cfg;
const struct cs8409_cir_param *seq_bullseye = cs8409_cs42l42_bullseye_atn;
struct cs8409_spec *spec = codec->spec;
struct sub_codec *cs42l42 = spec->scodecs[CS8409_CODEC0];
if (spec->gpio_mask) {
snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_GPIO_MASK,
spec->gpio_mask);
snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_GPIO_DIRECTION,
spec->gpio_dir);
snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_GPIO_DATA,
spec->gpio_data);
}
for (; seq->nid; seq++)
cs8409_vendor_coef_set(codec, seq->cir, seq->coeff);
if (codec->fixup_id == CS8409_BULLSEYE) {
for (; seq_bullseye->nid; seq_bullseye++)
cs8409_vendor_coef_set(codec, seq_bullseye->cir, seq_bullseye->coeff);
}
/* DMIC1_MO=00b, DMIC1/2_SR=1 */
if (codec->fixup_id == CS8409_WARLOCK || codec->fixup_id == CS8409_CYBORG)
cs8409_vendor_coef_set(codec, 0x09, 0x0003);
cs42l42_resume(cs42l42);
/* Enable Unsolicited Response */
cs8409_enable_ur(codec, 1);
}
static const struct hda_codec_ops cs8409_cs42l42_patch_ops = {
.build_controls = cs8409_build_controls,
.build_pcms = snd_hda_gen_build_pcms,
.init = cs8409_init,
.free = cs8409_free,
.unsol_event = cs8409_cs42l42_jack_unsol_event,
#ifdef CONFIG_PM
.suspend = cs8409_cs42l42_suspend,
#endif
};
static int cs8409_cs42l42_exec_verb(struct hdac_device *dev, unsigned int cmd, unsigned int flags,
unsigned int *res)
{
struct hda_codec *codec = container_of(dev, struct hda_codec, core);
struct cs8409_spec *spec = codec->spec;
struct sub_codec *cs42l42 = spec->scodecs[CS8409_CODEC0];
unsigned int nid = ((cmd >> 20) & 0x07f);
unsigned int verb = ((cmd >> 8) & 0x0fff);
/* CS8409 pins have no AC_PINSENSE_PRESENCE
* capabilities. We have to intercept 2 calls for pins 0x24 and 0x34
* and return correct pin sense values for read_pin_sense() call from
* hda_jack based on CS42L42 jack detect status.
*/
switch (nid) {
case CS8409_CS42L42_HP_PIN_NID:
if (verb == AC_VERB_GET_PIN_SENSE) {
*res = (cs42l42->hp_jack_in) ? AC_PINSENSE_PRESENCE : 0;
return 0;
}
break;
case CS8409_CS42L42_AMIC_PIN_NID:
if (verb == AC_VERB_GET_PIN_SENSE) {
*res = (cs42l42->mic_jack_in) ? AC_PINSENSE_PRESENCE : 0;
return 0;
}
break;
default:
break;
}
return spec->exec_verb(dev, cmd, flags, res);
}
void cs8409_cs42l42_fixups(struct hda_codec *codec, const struct hda_fixup *fix, int action)
{
struct cs8409_spec *spec = codec->spec;
switch (action) {
case HDA_FIXUP_ACT_PRE_PROBE:
snd_hda_add_verbs(codec, cs8409_cs42l42_init_verbs);
/* verb exec op override */
spec->exec_verb = codec->core.exec_verb;
codec->core.exec_verb = cs8409_cs42l42_exec_verb;
spec->scodecs[CS8409_CODEC0] = &cs8409_cs42l42_codec;
spec->num_scodecs = 1;
spec->scodecs[CS8409_CODEC0]->codec = codec;
codec->patch_ops = cs8409_cs42l42_patch_ops;
spec->gen.suppress_auto_mute = 1;
spec->gen.no_primary_hp = 1;
spec->gen.suppress_vmaster = 1;
/* GPIO 5 out, 3,4 in */
spec->gpio_dir = spec->scodecs[CS8409_CODEC0]->reset_gpio;
spec->gpio_data = 0;
spec->gpio_mask = 0x03f;
/* Basic initial sequence for specific hw configuration */
snd_hda_sequence_write(codec, cs8409_cs42l42_init_verbs);
cs8409_fix_caps(codec, CS8409_CS42L42_HP_PIN_NID);
cs8409_fix_caps(codec, CS8409_CS42L42_AMIC_PIN_NID);
/* Set TIP_SENSE_EN for analog front-end of tip sense.
* Additionally set HSBIAS_SENSE_EN and Full Scale volume for some variants.
*/
switch (codec->fixup_id) {
case CS8409_WARLOCK:
spec->scodecs[CS8409_CODEC0]->hsbias_hiz = 0x0020;
spec->scodecs[CS8409_CODEC0]->full_scale_vol = 1;
break;