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linux/sound/soc/codecs/cs35l45.c
Richard Fitzgerald eba2eb2495
ASoC: soc-card: Fix missing locking in snd_soc_card_get_kcontrol() 
snd_soc_card_get_kcontrol() must be holding a read lock on
card->controls_rwsem while walking the controls list.

Compare with snd_ctl_find_numid().

The existing function is renamed snd_soc_card_get_kcontrol_locked()
so that it can be called from contexts that are already holding
card->controls_rwsem (for example, control get/put functions).

There are few direct or indirect callers of
snd_soc_card_get_kcontrol(), and most are safe. Three require
changes, which have been included in this patch:

codecs/cs35l45.c:
  cs35l45_activate_ctl() is called from a control put() function so
  is changed to call snd_soc_card_get_kcontrol_locked().

codecs/cs35l56.c:
  cs35l56_sync_asp1_mixer_widgets_with_firmware() is called from
  control get()/put() functions so is changed to call
  snd_soc_card_get_kcontrol_locked().

fsl/fsl_xcvr.c:
  fsl_xcvr_activate_ctl() is called from three places, one of which
  already holds card->controls_rwsem:
  1. fsl_xcvr_mode_put(), a control put function, which will
     already be holding card->controls_rwsem.
  2. fsl_xcvr_startup(), a DAI startup function.
  3. fsl_xcvr_shutdown(), a DAI shutdown function.

  To fix this, fsl_xcvr_activate_ctl() has been changed to call
  snd_soc_card_get_kcontrol_locked() so that it is safe to call
  directly from fsl_xcvr_mode_put().
  The fsl_xcvr_startup() and fsl_xcvr_shutdown() functions have been
  changed to take a read lock on card->controls_rsem() around calls
  to fsl_xcvr_activate_ctl(). While this is not very elegant, it
  keeps the change small, to avoid this patch creating a large
  collateral churn in fsl/fsl_xcvr.c.

Analysis of other callers of snd_soc_card_get_kcontrol() is that
they do not need any changes, they are not holding card->controls_rwsem
when they call snd_soc_card_get_kcontrol().

Direct callers of snd_soc_card_get_kcontrol():
  fsl/fsl_spdif.c: fsl_spdif_dai_probe() - DAI probe function
  fsl/fsl_micfil.c: voice_detected_fn() - IRQ handler

Indirect callers via soc_component_notify_control():
  codecs/cs42l43: cs42l43_mic_shutter() - IRQ handler
  codecs/cs42l43: cs42l43_spk_shutter() - IRQ handler
  codecs/ak4118.c: ak4118_irq_handler() - IRQ handler
  codecs/wm_adsp.c: wm_adsp_write_ctl() - not currently used

Indirect callers via snd_soc_limit_volume():
  qcom/sc8280xp.c: sc8280xp_snd_init() - DAIlink init function
  ti/rx51.c: rx51_aic34_init() - DAI init function

I don't have hardware to test the fsl/*, qcom/sc828xp.c, ti/rx51.c
and ak4118.c changes.

Backport note:
The fsl/, qcom/, cs35l45, cs35l56 and cs42l43 callers were added
since the Fixes commit so won't all be present on older kernels.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 209c6cdfd2 ("ASoC: soc-card: move snd_soc_card_get_kcontrol() to soc-card")
Link: https://lore.kernel.org/r/20240221123710.690224-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-02-23 13:40:06 +00:00

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// SPDX-License-Identifier: GPL-2.0
//
// cs35l45.c - CS35L45 ALSA SoC audio driver
//
// Copyright 2019-2022 Cirrus Logic, Inc.
//
// Author: James Schulman <james.schulman@cirrus.com>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/property.h>
#include <linux/firmware.h>
#include <linux/regulator/consumer.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "cs35l45.h"
static bool cs35l45_check_cspl_mbox_sts(const enum cs35l45_cspl_mboxcmd cmd,
enum cs35l45_cspl_mboxstate sts)
{
switch (cmd) {
case CSPL_MBOX_CMD_NONE:
case CSPL_MBOX_CMD_UNKNOWN_CMD:
return true;
case CSPL_MBOX_CMD_PAUSE:
case CSPL_MBOX_CMD_OUT_OF_HIBERNATE:
return (sts == CSPL_MBOX_STS_PAUSED);
case CSPL_MBOX_CMD_RESUME:
return (sts == CSPL_MBOX_STS_RUNNING);
case CSPL_MBOX_CMD_REINIT:
return (sts == CSPL_MBOX_STS_RUNNING);
case CSPL_MBOX_CMD_STOP_PRE_REINIT:
return (sts == CSPL_MBOX_STS_RDY_FOR_REINIT);
case CSPL_MBOX_CMD_HIBERNATE:
return (sts == CSPL_MBOX_STS_HIBERNATE);
default:
return false;
}
}
static int cs35l45_set_cspl_mbox_cmd(struct cs35l45_private *cs35l45,
struct regmap *regmap,
const enum cs35l45_cspl_mboxcmd cmd)
{
unsigned int sts = 0, i;
int ret;
if (!cs35l45->dsp.cs_dsp.running) {
dev_err(cs35l45->dev, "DSP not running\n");
return -EPERM;
}
// Set mailbox cmd
ret = regmap_write(regmap, CS35L45_DSP_VIRT1_MBOX_1, cmd);
if (ret < 0) {
if (cmd != CSPL_MBOX_CMD_OUT_OF_HIBERNATE)
dev_err(cs35l45->dev, "Failed to write MBOX: %d\n", ret);
return ret;
}
// Read mailbox status and verify it is appropriate for the given cmd
for (i = 0; i < 5; i++) {
usleep_range(1000, 1100);
ret = regmap_read(regmap, CS35L45_DSP_MBOX_2, &sts);
if (ret < 0) {
dev_err(cs35l45->dev, "Failed to read MBOX STS: %d\n", ret);
continue;
}
if (!cs35l45_check_cspl_mbox_sts(cmd, sts))
dev_dbg(cs35l45->dev, "[%u] cmd %u returned invalid sts %u", i, cmd, sts);
else
return 0;
}
if (cmd != CSPL_MBOX_CMD_OUT_OF_HIBERNATE)
dev_err(cs35l45->dev, "Failed to set mailbox cmd %u (status %u)\n", cmd, sts);
return -ENOMSG;
}
static int cs35l45_global_en_ev(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
dev_dbg(cs35l45->dev, "%s event : %x\n", __func__, event);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
regmap_write(cs35l45->regmap, CS35L45_GLOBAL_ENABLES,
CS35L45_GLOBAL_EN_MASK);
usleep_range(CS35L45_POST_GLOBAL_EN_US, CS35L45_POST_GLOBAL_EN_US + 100);
break;
case SND_SOC_DAPM_PRE_PMD:
usleep_range(CS35L45_PRE_GLOBAL_DIS_US, CS35L45_PRE_GLOBAL_DIS_US + 100);
regmap_write(cs35l45->regmap, CS35L45_GLOBAL_ENABLES, 0);
break;
default:
break;
}
return 0;
}
static int cs35l45_dsp_preload_ev(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
int ret;
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
if (cs35l45->dsp.cs_dsp.booted)
return 0;
return wm_adsp_early_event(w, kcontrol, event);
case SND_SOC_DAPM_POST_PMU:
if (cs35l45->dsp.cs_dsp.running)
return 0;
regmap_set_bits(cs35l45->regmap, CS35L45_PWRMGT_CTL,
CS35L45_MEM_RDY_MASK);
return wm_adsp_event(w, kcontrol, event);
case SND_SOC_DAPM_PRE_PMD:
if (cs35l45->dsp.preloaded)
return 0;
if (cs35l45->dsp.cs_dsp.running) {
ret = wm_adsp_event(w, kcontrol, event);
if (ret)
return ret;
}
return wm_adsp_early_event(w, kcontrol, event);
default:
return 0;
}
}
static int cs35l45_dsp_audio_ev(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
return cs35l45_set_cspl_mbox_cmd(cs35l45, cs35l45->regmap,
CSPL_MBOX_CMD_RESUME);
case SND_SOC_DAPM_PRE_PMD:
return cs35l45_set_cspl_mbox_cmd(cs35l45, cs35l45->regmap,
CSPL_MBOX_CMD_PAUSE);
default:
return 0;
}
return 0;
}
static int cs35l45_activate_ctl(struct snd_soc_component *component,
const char *ctl_name, bool active)
{
struct snd_card *card = component->card->snd_card;
struct snd_kcontrol *kcontrol;
struct snd_kcontrol_volatile *vd;
unsigned int index_offset;
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
if (component->name_prefix)
snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s %s",
component->name_prefix, ctl_name);
else
snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s", ctl_name);
kcontrol = snd_soc_card_get_kcontrol_locked(component->card, name);
if (!kcontrol) {
dev_err(component->dev, "Can't find kcontrol %s\n", name);
return -EINVAL;
}
index_offset = snd_ctl_get_ioff(kcontrol, &kcontrol->id);
vd = &kcontrol->vd[index_offset];
if (active)
vd->access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
else
vd->access &= ~SNDRV_CTL_ELEM_ACCESS_WRITE;
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO, &kcontrol->id);
return 0;
}
static int cs35l45_amplifier_mode_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component =
snd_soc_kcontrol_component(kcontrol);
struct cs35l45_private *cs35l45 =
snd_soc_component_get_drvdata(component);
ucontrol->value.integer.value[0] = cs35l45->amplifier_mode;
return 0;
}
static int cs35l45_amplifier_mode_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component =
snd_soc_kcontrol_component(kcontrol);
struct cs35l45_private *cs35l45 =
snd_soc_component_get_drvdata(component);
struct snd_soc_dapm_context *dapm =
snd_soc_component_get_dapm(component);
unsigned int amp_state;
int ret;
if ((ucontrol->value.integer.value[0] == cs35l45->amplifier_mode) ||
(ucontrol->value.integer.value[0] > AMP_MODE_RCV))
return 0;
snd_soc_dapm_mutex_lock(dapm);
ret = regmap_read(cs35l45->regmap, CS35L45_BLOCK_ENABLES, &amp_state);
if (ret < 0) {
dev_err(cs35l45->dev, "Failed to read AMP state: %d\n", ret);
snd_soc_dapm_mutex_unlock(dapm);
return ret;
}
regmap_clear_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
CS35L45_AMP_EN_MASK);
snd_soc_component_disable_pin_unlocked(component, "SPK");
snd_soc_dapm_sync_unlocked(dapm);
if (ucontrol->value.integer.value[0] == AMP_MODE_SPK) {
regmap_clear_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
CS35L45_RCV_EN_MASK);
regmap_update_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
CS35L45_BST_EN_MASK,
CS35L45_BST_ENABLE << CS35L45_BST_EN_SHIFT);
regmap_update_bits(cs35l45->regmap, CS35L45_HVLV_CONFIG,
CS35L45_HVLV_MODE_MASK,
CS35L45_HVLV_OPERATION <<
CS35L45_HVLV_MODE_SHIFT);
ret = cs35l45_activate_ctl(component, "Analog PCM Volume", true);
if (ret < 0)
dev_err(cs35l45->dev,
"Unable to deactivate ctl (%d)\n", ret);
} else /* AMP_MODE_RCV */ {
regmap_set_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
CS35L45_RCV_EN_MASK);
regmap_update_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
CS35L45_BST_EN_MASK,
CS35L45_BST_DISABLE_FET_OFF <<
CS35L45_BST_EN_SHIFT);
regmap_update_bits(cs35l45->regmap, CS35L45_HVLV_CONFIG,
CS35L45_HVLV_MODE_MASK,
CS35L45_FORCE_LV_OPERATION <<
CS35L45_HVLV_MODE_SHIFT);
regmap_clear_bits(cs35l45->regmap,
CS35L45_BLOCK_ENABLES2,
CS35L45_AMP_DRE_EN_MASK);
regmap_update_bits(cs35l45->regmap, CS35L45_AMP_GAIN,
CS35L45_AMP_GAIN_PCM_MASK,
CS35L45_AMP_GAIN_PCM_13DBV <<
CS35L45_AMP_GAIN_PCM_SHIFT);
ret = cs35l45_activate_ctl(component, "Analog PCM Volume", false);
if (ret < 0)
dev_err(cs35l45->dev,
"Unable to deactivate ctl (%d)\n", ret);
}
if (amp_state & CS35L45_AMP_EN_MASK)
regmap_set_bits(cs35l45->regmap, CS35L45_BLOCK_ENABLES,
CS35L45_AMP_EN_MASK);
snd_soc_component_enable_pin_unlocked(component, "SPK");
snd_soc_dapm_sync_unlocked(dapm);
snd_soc_dapm_mutex_unlock(dapm);
cs35l45->amplifier_mode = ucontrol->value.integer.value[0];
return 1;
}
static const char * const cs35l45_asp_tx_txt[] = {
"Zero", "ASP_RX1", "ASP_RX2",
"VMON", "IMON", "ERR_VOL",
"VDD_BATTMON", "VDD_BSTMON",
"DSP_TX1", "DSP_TX2",
"Interpolator", "IL_TARGET",
};
static const unsigned int cs35l45_asp_tx_val[] = {
CS35L45_PCM_SRC_ZERO, CS35L45_PCM_SRC_ASP_RX1, CS35L45_PCM_SRC_ASP_RX2,
CS35L45_PCM_SRC_VMON, CS35L45_PCM_SRC_IMON, CS35L45_PCM_SRC_ERR_VOL,
CS35L45_PCM_SRC_VDD_BATTMON, CS35L45_PCM_SRC_VDD_BSTMON,
CS35L45_PCM_SRC_DSP_TX1, CS35L45_PCM_SRC_DSP_TX2,
CS35L45_PCM_SRC_INTERPOLATOR, CS35L45_PCM_SRC_IL_TARGET,
};
static const struct soc_enum cs35l45_asp_tx_enums[] = {
SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX1_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
cs35l45_asp_tx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX2_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
cs35l45_asp_tx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX3_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
cs35l45_asp_tx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX4_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
cs35l45_asp_tx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_ASPTX5_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_asp_tx_txt), cs35l45_asp_tx_txt,
cs35l45_asp_tx_val),
};
static const char * const cs35l45_dsp_rx_txt[] = {
"Zero", "ASP_RX1", "ASP_RX2",
"VMON", "IMON", "ERR_VOL",
"CLASSH_TGT", "VDD_BATTMON",
"VDD_BSTMON", "TEMPMON",
};
static const unsigned int cs35l45_dsp_rx_val[] = {
CS35L45_PCM_SRC_ZERO, CS35L45_PCM_SRC_ASP_RX1, CS35L45_PCM_SRC_ASP_RX2,
CS35L45_PCM_SRC_VMON, CS35L45_PCM_SRC_IMON, CS35L45_PCM_SRC_ERR_VOL,
CS35L45_PCM_SRC_CLASSH_TGT, CS35L45_PCM_SRC_VDD_BATTMON,
CS35L45_PCM_SRC_VDD_BSTMON, CS35L45_PCM_SRC_TEMPMON,
};
static const struct soc_enum cs35l45_dsp_rx_enums[] = {
SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX1_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
cs35l45_dsp_rx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX2_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
cs35l45_dsp_rx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX3_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
cs35l45_dsp_rx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX4_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
cs35l45_dsp_rx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX5_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
cs35l45_dsp_rx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX6_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
cs35l45_dsp_rx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX7_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
cs35l45_dsp_rx_val),
SOC_VALUE_ENUM_SINGLE(CS35L45_DSP1RX8_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_dsp_rx_txt), cs35l45_dsp_rx_txt,
cs35l45_dsp_rx_val),
};
static const char * const cs35l45_dac_txt[] = {
"Zero", "ASP_RX1", "ASP_RX2", "DSP_TX1", "DSP_TX2"
};
static const unsigned int cs35l45_dac_val[] = {
CS35L45_PCM_SRC_ZERO, CS35L45_PCM_SRC_ASP_RX1, CS35L45_PCM_SRC_ASP_RX2,
CS35L45_PCM_SRC_DSP_TX1, CS35L45_PCM_SRC_DSP_TX2
};
static const struct soc_enum cs35l45_dacpcm_enums[] = {
SOC_VALUE_ENUM_SINGLE(CS35L45_DACPCM1_INPUT, 0, CS35L45_PCM_SRC_MASK,
ARRAY_SIZE(cs35l45_dac_txt), cs35l45_dac_txt,
cs35l45_dac_val),
};
static const struct snd_kcontrol_new cs35l45_asp_muxes[] = {
SOC_DAPM_ENUM("ASP_TX1 Source", cs35l45_asp_tx_enums[0]),
SOC_DAPM_ENUM("ASP_TX2 Source", cs35l45_asp_tx_enums[1]),
SOC_DAPM_ENUM("ASP_TX3 Source", cs35l45_asp_tx_enums[2]),
SOC_DAPM_ENUM("ASP_TX4 Source", cs35l45_asp_tx_enums[3]),
SOC_DAPM_ENUM("ASP_TX5 Source", cs35l45_asp_tx_enums[4]),
};
static const struct snd_kcontrol_new cs35l45_dsp_muxes[] = {
SOC_DAPM_ENUM("DSP_RX1 Source", cs35l45_dsp_rx_enums[0]),
SOC_DAPM_ENUM("DSP_RX2 Source", cs35l45_dsp_rx_enums[1]),
SOC_DAPM_ENUM("DSP_RX3 Source", cs35l45_dsp_rx_enums[2]),
SOC_DAPM_ENUM("DSP_RX4 Source", cs35l45_dsp_rx_enums[3]),
SOC_DAPM_ENUM("DSP_RX5 Source", cs35l45_dsp_rx_enums[4]),
SOC_DAPM_ENUM("DSP_RX6 Source", cs35l45_dsp_rx_enums[5]),
SOC_DAPM_ENUM("DSP_RX7 Source", cs35l45_dsp_rx_enums[6]),
SOC_DAPM_ENUM("DSP_RX8 Source", cs35l45_dsp_rx_enums[7]),
};
static const struct snd_kcontrol_new cs35l45_dac_muxes[] = {
SOC_DAPM_ENUM("DACPCM Source", cs35l45_dacpcm_enums[0]),
};
static const struct snd_kcontrol_new amp_en_ctl =
SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 0, 1, 0);
static const struct snd_soc_dapm_widget cs35l45_dapm_widgets[] = {
SND_SOC_DAPM_SPK("DSP1 Preload", NULL),
SND_SOC_DAPM_SUPPLY_S("DSP1 Preloader", 100, SND_SOC_NOPM, 0, 0,
cs35l45_dsp_preload_ev,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_OUT_DRV_E("DSP1", SND_SOC_NOPM, 0, 0, NULL, 0,
cs35l45_dsp_audio_ev,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_SUPPLY("GLOBAL_EN", SND_SOC_NOPM, 0, 0,
cs35l45_global_en_ev,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_SUPPLY("ASP_EN", CS35L45_BLOCK_ENABLES2, CS35L45_ASP_EN_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SIGGEN("VMON_SRC"),
SND_SOC_DAPM_SIGGEN("IMON_SRC"),
SND_SOC_DAPM_SIGGEN("TEMPMON_SRC"),
SND_SOC_DAPM_SIGGEN("VDD_BATTMON_SRC"),
SND_SOC_DAPM_SIGGEN("VDD_BSTMON_SRC"),
SND_SOC_DAPM_SIGGEN("ERR_VOL"),
SND_SOC_DAPM_SIGGEN("AMP_INTP"),
SND_SOC_DAPM_SIGGEN("IL_TARGET"),
SND_SOC_DAPM_SUPPLY("VMON_EN", CS35L45_BLOCK_ENABLES, CS35L45_VMON_EN_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("IMON_EN", CS35L45_BLOCK_ENABLES, CS35L45_IMON_EN_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("TEMPMON_EN", CS35L45_BLOCK_ENABLES, CS35L45_TEMPMON_EN_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("VDD_BATTMON_EN", CS35L45_BLOCK_ENABLES, CS35L45_VDD_BATTMON_EN_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("VDD_BSTMON_EN", CS35L45_BLOCK_ENABLES, CS35L45_VDD_BSTMON_EN_SHIFT, 0, NULL, 0),
SND_SOC_DAPM_ADC("VMON", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("IMON", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("TEMPMON", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("VDD_BATTMON", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("VDD_BSTMON", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_IN("ASP_RX1", NULL, 0, CS35L45_ASP_ENABLES1, CS35L45_ASP_RX1_EN_SHIFT, 0),
SND_SOC_DAPM_AIF_IN("ASP_RX2", NULL, 1, CS35L45_ASP_ENABLES1, CS35L45_ASP_RX2_EN_SHIFT, 0),
SND_SOC_DAPM_AIF_OUT("ASP_TX1", NULL, 0, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX1_EN_SHIFT, 0),
SND_SOC_DAPM_AIF_OUT("ASP_TX2", NULL, 1, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX2_EN_SHIFT, 0),
SND_SOC_DAPM_AIF_OUT("ASP_TX3", NULL, 2, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX3_EN_SHIFT, 0),
SND_SOC_DAPM_AIF_OUT("ASP_TX4", NULL, 3, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX4_EN_SHIFT, 0),
SND_SOC_DAPM_AIF_OUT("ASP_TX5", NULL, 3, CS35L45_ASP_ENABLES1, CS35L45_ASP_TX5_EN_SHIFT, 0),
SND_SOC_DAPM_MUX("ASP_TX1 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[0]),
SND_SOC_DAPM_MUX("ASP_TX2 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[1]),
SND_SOC_DAPM_MUX("ASP_TX3 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[2]),
SND_SOC_DAPM_MUX("ASP_TX4 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[3]),
SND_SOC_DAPM_MUX("ASP_TX5 Source", SND_SOC_NOPM, 0, 0, &cs35l45_asp_muxes[4]),
SND_SOC_DAPM_MUX("DSP_RX1 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[0]),
SND_SOC_DAPM_MUX("DSP_RX2 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[1]),
SND_SOC_DAPM_MUX("DSP_RX3 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[2]),
SND_SOC_DAPM_MUX("DSP_RX4 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[3]),
SND_SOC_DAPM_MUX("DSP_RX5 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[4]),
SND_SOC_DAPM_MUX("DSP_RX6 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[5]),
SND_SOC_DAPM_MUX("DSP_RX7 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[6]),
SND_SOC_DAPM_MUX("DSP_RX8 Source", SND_SOC_NOPM, 0, 0, &cs35l45_dsp_muxes[7]),
SND_SOC_DAPM_MUX("DACPCM Source", SND_SOC_NOPM, 0, 0, &cs35l45_dac_muxes[0]),
SND_SOC_DAPM_SWITCH("AMP Enable", SND_SOC_NOPM, 0, 0, &amp_en_ctl),
SND_SOC_DAPM_OUT_DRV("AMP", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_OUTPUT("SPK"),
};
#define CS35L45_ASP_MUX_ROUTE(name) \
{ name" Source", "ASP_RX1", "ASP_RX1" }, \
{ name" Source", "ASP_RX2", "ASP_RX2" }, \
{ name" Source", "DSP_TX1", "DSP1" }, \
{ name" Source", "DSP_TX2", "DSP1" }, \
{ name" Source", "VMON", "VMON" }, \
{ name" Source", "IMON", "IMON" }, \
{ name" Source", "ERR_VOL", "ERR_VOL" }, \
{ name" Source", "VDD_BATTMON", "VDD_BATTMON" }, \
{ name" Source", "VDD_BSTMON", "VDD_BSTMON" }, \
{ name" Source", "Interpolator", "AMP_INTP" }, \
{ name" Source", "IL_TARGET", "IL_TARGET" }
#define CS35L45_DSP_MUX_ROUTE(name) \
{ name" Source", "ASP_RX1", "ASP_RX1" }, \
{ name" Source", "ASP_RX2", "ASP_RX2" }
#define CS35L45_DAC_MUX_ROUTE(name) \
{ name" Source", "ASP_RX1", "ASP_RX1" }, \
{ name" Source", "ASP_RX2", "ASP_RX2" }, \
{ name" Source", "DSP_TX1", "DSP1" }, \
{ name" Source", "DSP_TX2", "DSP1" }
static const struct snd_soc_dapm_route cs35l45_dapm_routes[] = {
/* Feedback */
{ "VMON", NULL, "VMON_SRC" },
{ "IMON", NULL, "IMON_SRC" },
{ "TEMPMON", NULL, "TEMPMON_SRC" },
{ "VDD_BATTMON", NULL, "VDD_BATTMON_SRC" },
{ "VDD_BSTMON", NULL, "VDD_BSTMON_SRC" },
{ "VMON", NULL, "VMON_EN" },
{ "IMON", NULL, "IMON_EN" },
{ "TEMPMON", NULL, "TEMPMON_EN" },
{ "VDD_BATTMON", NULL, "VDD_BATTMON_EN" },
{ "VDD_BSTMON", NULL, "VDD_BSTMON_EN" },
{ "Capture", NULL, "ASP_TX1"},
{ "Capture", NULL, "ASP_TX2"},
{ "Capture", NULL, "ASP_TX3"},
{ "Capture", NULL, "ASP_TX4"},
{ "Capture", NULL, "ASP_TX5"},
{ "ASP_TX1", NULL, "ASP_TX1 Source"},
{ "ASP_TX2", NULL, "ASP_TX2 Source"},
{ "ASP_TX3", NULL, "ASP_TX3 Source"},
{ "ASP_TX4", NULL, "ASP_TX4 Source"},
{ "ASP_TX5", NULL, "ASP_TX5 Source"},
{ "ASP_TX1", NULL, "ASP_EN" },
{ "ASP_TX2", NULL, "ASP_EN" },
{ "ASP_TX3", NULL, "ASP_EN" },
{ "ASP_TX4", NULL, "ASP_EN" },
{ "ASP_TX1", NULL, "GLOBAL_EN" },
{ "ASP_TX2", NULL, "GLOBAL_EN" },
{ "ASP_TX3", NULL, "GLOBAL_EN" },
{ "ASP_TX4", NULL, "GLOBAL_EN" },
{ "ASP_TX5", NULL, "GLOBAL_EN" },
CS35L45_ASP_MUX_ROUTE("ASP_TX1"),
CS35L45_ASP_MUX_ROUTE("ASP_TX2"),
CS35L45_ASP_MUX_ROUTE("ASP_TX3"),
CS35L45_ASP_MUX_ROUTE("ASP_TX4"),
CS35L45_ASP_MUX_ROUTE("ASP_TX5"),
/* Playback */
{ "ASP_RX1", NULL, "Playback" },
{ "ASP_RX2", NULL, "Playback" },
{ "ASP_RX1", NULL, "ASP_EN" },
{ "ASP_RX2", NULL, "ASP_EN" },
{ "AMP", NULL, "DACPCM Source"},
{ "AMP", NULL, "GLOBAL_EN"},
CS35L45_DSP_MUX_ROUTE("DSP_RX1"),
CS35L45_DSP_MUX_ROUTE("DSP_RX2"),
CS35L45_DSP_MUX_ROUTE("DSP_RX3"),
CS35L45_DSP_MUX_ROUTE("DSP_RX4"),
CS35L45_DSP_MUX_ROUTE("DSP_RX5"),
CS35L45_DSP_MUX_ROUTE("DSP_RX6"),
CS35L45_DSP_MUX_ROUTE("DSP_RX7"),
CS35L45_DSP_MUX_ROUTE("DSP_RX8"),
{"DSP1", NULL, "DSP_RX1 Source"},
{"DSP1", NULL, "DSP_RX2 Source"},
{"DSP1", NULL, "DSP_RX3 Source"},
{"DSP1", NULL, "DSP_RX4 Source"},
{"DSP1", NULL, "DSP_RX5 Source"},
{"DSP1", NULL, "DSP_RX6 Source"},
{"DSP1", NULL, "DSP_RX7 Source"},
{"DSP1", NULL, "DSP_RX8 Source"},
{"DSP1", NULL, "VMON_EN"},
{"DSP1", NULL, "IMON_EN"},
{"DSP1", NULL, "VDD_BATTMON_EN"},
{"DSP1", NULL, "VDD_BSTMON_EN"},
{"DSP1", NULL, "TEMPMON_EN"},
{"DSP1 Preload", NULL, "DSP1 Preloader"},
{"DSP1", NULL, "DSP1 Preloader"},
CS35L45_DAC_MUX_ROUTE("DACPCM"),
{ "AMP Enable", "Switch", "AMP" },
{ "SPK", NULL, "AMP Enable"},
};
static const char * const amplifier_mode_texts[] = {"SPK", "RCV"};
static SOC_ENUM_SINGLE_DECL(amplifier_mode_enum, SND_SOC_NOPM, 0,
amplifier_mode_texts);
static DECLARE_TLV_DB_SCALE(amp_gain_tlv, 1000, 300, 0);
static const DECLARE_TLV_DB_SCALE(cs35l45_dig_pcm_vol_tlv, -10225, 25, true);
static const struct snd_kcontrol_new cs35l45_controls[] = {
SOC_ENUM_EXT("Amplifier Mode", amplifier_mode_enum,
cs35l45_amplifier_mode_get, cs35l45_amplifier_mode_put),
SOC_SINGLE_TLV("Analog PCM Volume", CS35L45_AMP_GAIN,
CS35L45_AMP_GAIN_PCM_SHIFT,
CS35L45_AMP_GAIN_PCM_MASK >> CS35L45_AMP_GAIN_PCM_SHIFT,
0, amp_gain_tlv),
/* Ignore bit 0: it is beyond the resolution of TLV_DB_SCALE */
SOC_SINGLE_S_TLV("Digital PCM Volume",
CS35L45_AMP_PCM_CONTROL,
CS35L45_AMP_VOL_PCM_SHIFT + 1,
-409, 48,
(CS35L45_AMP_VOL_PCM_WIDTH - 1) - 1,
0, cs35l45_dig_pcm_vol_tlv),
WM_ADSP2_PRELOAD_SWITCH("DSP1", 1),
WM_ADSP_FW_CONTROL("DSP1", 0),
};
static int cs35l45_set_pll(struct cs35l45_private *cs35l45, unsigned int freq)
{
unsigned int val;
int freq_id;
freq_id = cs35l45_get_clk_freq_id(freq);
if (freq_id < 0) {
dev_err(cs35l45->dev, "Invalid freq: %u\n", freq);
return -EINVAL;
}
regmap_read(cs35l45->regmap, CS35L45_REFCLK_INPUT, &val);
val = (val & CS35L45_PLL_REFCLK_FREQ_MASK) >> CS35L45_PLL_REFCLK_FREQ_SHIFT;
if (val == freq_id)
return 0;
regmap_set_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_OPEN_LOOP_MASK);
regmap_update_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT,
CS35L45_PLL_REFCLK_FREQ_MASK,
freq_id << CS35L45_PLL_REFCLK_FREQ_SHIFT);
regmap_clear_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_REFCLK_EN_MASK);
regmap_clear_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_OPEN_LOOP_MASK);
regmap_set_bits(cs35l45->regmap, CS35L45_REFCLK_INPUT, CS35L45_PLL_REFCLK_EN_MASK);
return 0;
}
static int cs35l45_asp_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(codec_dai->component);
unsigned int asp_fmt, fsync_inv, bclk_inv;
switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
case SND_SOC_DAIFMT_CBC_CFC:
break;
default:
dev_err(cs35l45->dev, "Invalid DAI clocking\n");
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_DSP_A:
asp_fmt = CS35l45_ASP_FMT_DSP_A;
break;
case SND_SOC_DAIFMT_I2S:
asp_fmt = CS35L45_ASP_FMT_I2S;
break;
default:
dev_err(cs35l45->dev, "Invalid DAI format\n");
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_IF:
fsync_inv = 1;
bclk_inv = 0;
break;
case SND_SOC_DAIFMT_IB_NF:
fsync_inv = 0;
bclk_inv = 1;
break;
case SND_SOC_DAIFMT_IB_IF:
fsync_inv = 1;
bclk_inv = 1;
break;
case SND_SOC_DAIFMT_NB_NF:
fsync_inv = 0;
bclk_inv = 0;
break;
default:
dev_warn(cs35l45->dev, "Invalid DAI clock polarity\n");
return -EINVAL;
}
regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL2,
CS35L45_ASP_FMT_MASK |
CS35L45_ASP_FSYNC_INV_MASK |
CS35L45_ASP_BCLK_INV_MASK,
(asp_fmt << CS35L45_ASP_FMT_SHIFT) |
(fsync_inv << CS35L45_ASP_FSYNC_INV_SHIFT) |
(bclk_inv << CS35L45_ASP_BCLK_INV_SHIFT));
return 0;
}
static int cs35l45_asp_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
unsigned int asp_width, asp_wl, global_fs, slot_multiple, asp_fmt;
int bclk;
switch (params_rate(params)) {
case 44100:
global_fs = CS35L45_44P100_KHZ;
break;
case 48000:
global_fs = CS35L45_48P0_KHZ;
break;
case 88200:
global_fs = CS35L45_88P200_KHZ;
break;
case 96000:
global_fs = CS35L45_96P0_KHZ;
break;
default:
dev_warn(cs35l45->dev, "Unsupported sample rate (%d)\n",
params_rate(params));
return -EINVAL;
}
regmap_update_bits(cs35l45->regmap, CS35L45_GLOBAL_SAMPLE_RATE,
CS35L45_GLOBAL_FS_MASK,
global_fs << CS35L45_GLOBAL_FS_SHIFT);
asp_wl = params_width(params);
if (cs35l45->slot_width)
asp_width = cs35l45->slot_width;
else
asp_width = params_width(params);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL2,
CS35L45_ASP_WIDTH_RX_MASK,
asp_width << CS35L45_ASP_WIDTH_RX_SHIFT);
regmap_update_bits(cs35l45->regmap, CS35L45_ASP_DATA_CONTROL5,
CS35L45_ASP_WL_MASK,
asp_wl << CS35L45_ASP_WL_SHIFT);
} else {
regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL2,
CS35L45_ASP_WIDTH_TX_MASK,
asp_width << CS35L45_ASP_WIDTH_TX_SHIFT);
regmap_update_bits(cs35l45->regmap, CS35L45_ASP_DATA_CONTROL1,
CS35L45_ASP_WL_MASK,
asp_wl << CS35L45_ASP_WL_SHIFT);
}
if (cs35l45->sysclk_set)
return 0;
/* I2S always has an even number of channels */
regmap_read(cs35l45->regmap, CS35L45_ASP_CONTROL2, &asp_fmt);
asp_fmt = (asp_fmt & CS35L45_ASP_FMT_MASK) >> CS35L45_ASP_FMT_SHIFT;
if (asp_fmt == CS35L45_ASP_FMT_I2S)
slot_multiple = 2;
else
slot_multiple = 1;
bclk = snd_soc_tdm_params_to_bclk(params, asp_width,
cs35l45->slot_count, slot_multiple);
return cs35l45_set_pll(cs35l45, bclk);
}
static int cs35l45_asp_set_tdm_slot(struct snd_soc_dai *dai,
unsigned int tx_mask, unsigned int rx_mask,
int slots, int slot_width)
{
struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
if (slot_width && ((slot_width < 16) || (slot_width > 128)))
return -EINVAL;
cs35l45->slot_width = slot_width;
cs35l45->slot_count = slots;
return 0;
}
static int cs35l45_asp_set_sysclk(struct snd_soc_dai *dai,
int clk_id, unsigned int freq, int dir)
{
struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
int ret;
if (clk_id != 0) {
dev_err(cs35l45->dev, "Invalid clk_id %d\n", clk_id);
return -EINVAL;
}
cs35l45->sysclk_set = false;
if (freq == 0)
return 0;
ret = cs35l45_set_pll(cs35l45, freq);
if (ret < 0)
return -EINVAL;
cs35l45->sysclk_set = true;
return 0;
}
static int cs35l45_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
{
struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(dai->component);
unsigned int global_fs, val, hpf_tune;
if (mute)
return 0;
regmap_read(cs35l45->regmap, CS35L45_GLOBAL_SAMPLE_RATE, &global_fs);
global_fs = (global_fs & CS35L45_GLOBAL_FS_MASK) >> CS35L45_GLOBAL_FS_SHIFT;
switch (global_fs) {
case CS35L45_44P100_KHZ:
hpf_tune = CS35L45_HPF_44P1;
break;
case CS35L45_88P200_KHZ:
hpf_tune = CS35L45_HPF_88P2;
break;
default:
hpf_tune = CS35l45_HPF_DEFAULT;
break;
}
regmap_read(cs35l45->regmap, CS35L45_AMP_PCM_HPF_TST, &val);
if (val != hpf_tune) {
struct reg_sequence hpf_override_seq[] = {
{ 0x00000040, 0x00000055 },
{ 0x00000040, 0x000000AA },
{ 0x00000044, 0x00000055 },
{ 0x00000044, 0x000000AA },
{ CS35L45_AMP_PCM_HPF_TST, hpf_tune },
{ 0x00000040, 0x00000000 },
{ 0x00000044, 0x00000000 },
};
regmap_multi_reg_write(cs35l45->regmap, hpf_override_seq,
ARRAY_SIZE(hpf_override_seq));
}
return 0;
}
static const struct snd_soc_dai_ops cs35l45_asp_dai_ops = {
.set_fmt = cs35l45_asp_set_fmt,
.hw_params = cs35l45_asp_hw_params,
.set_tdm_slot = cs35l45_asp_set_tdm_slot,
.set_sysclk = cs35l45_asp_set_sysclk,
.mute_stream = cs35l45_mute_stream,
};
static struct snd_soc_dai_driver cs35l45_dai[] = {
{
.name = "cs35l45",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = CS35L45_RATES,
.formats = CS35L45_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 5,
.rates = CS35L45_RATES,
.formats = CS35L45_FORMATS,
},
.symmetric_rate = true,
.symmetric_sample_bits = true,
.ops = &cs35l45_asp_dai_ops,
},
};
static int cs35l45_component_probe(struct snd_soc_component *component)
{
struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
return wm_adsp2_component_probe(&cs35l45->dsp, component);
}
static void cs35l45_component_remove(struct snd_soc_component *component)
{
struct cs35l45_private *cs35l45 = snd_soc_component_get_drvdata(component);
wm_adsp2_component_remove(&cs35l45->dsp, component);
}
static const struct snd_soc_component_driver cs35l45_component = {
.probe = cs35l45_component_probe,
.remove = cs35l45_component_remove,
.dapm_widgets = cs35l45_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(cs35l45_dapm_widgets),
.dapm_routes = cs35l45_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(cs35l45_dapm_routes),
.controls = cs35l45_controls,
.num_controls = ARRAY_SIZE(cs35l45_controls),
.name = "cs35l45",
.endianness = 1,
};
static void cs35l45_setup_hibernate(struct cs35l45_private *cs35l45)
{
unsigned int wksrc;
if (cs35l45->bus_type == CONTROL_BUS_I2C)
wksrc = CS35L45_WKSRC_I2C;
else
wksrc = CS35L45_WKSRC_SPI;
regmap_update_bits(cs35l45->regmap, CS35L45_WAKESRC_CTL,
CS35L45_WKSRC_EN_MASK,
wksrc << CS35L45_WKSRC_EN_SHIFT);
regmap_set_bits(cs35l45->regmap, CS35L45_WAKESRC_CTL,
CS35L45_UPDT_WKCTL_MASK);
regmap_update_bits(cs35l45->regmap, CS35L45_WKI2C_CTL,
CS35L45_WKI2C_ADDR_MASK, cs35l45->i2c_addr);
regmap_set_bits(cs35l45->regmap, CS35L45_WKI2C_CTL,
CS35L45_UPDT_WKI2C_MASK);
}
static int cs35l45_enter_hibernate(struct cs35l45_private *cs35l45)
{
dev_dbg(cs35l45->dev, "Enter hibernate\n");
cs35l45_setup_hibernate(cs35l45);
regmap_set_bits(cs35l45->regmap, CS35L45_IRQ1_MASK_2, CS35L45_DSP_VIRT2_MBOX_MASK);
// Don't wait for ACK since bus activity would wake the device
regmap_write(cs35l45->regmap, CS35L45_DSP_VIRT1_MBOX_1, CSPL_MBOX_CMD_HIBERNATE);
return 0;
}
static int cs35l45_exit_hibernate(struct cs35l45_private *cs35l45)
{
const int wake_retries = 20;
const int sleep_retries = 5;
int ret, i, j;
for (i = 0; i < sleep_retries; i++) {
dev_dbg(cs35l45->dev, "Exit hibernate\n");
for (j = 0; j < wake_retries; j++) {
ret = cs35l45_set_cspl_mbox_cmd(cs35l45, cs35l45->regmap,
CSPL_MBOX_CMD_OUT_OF_HIBERNATE);
if (!ret) {
dev_dbg(cs35l45->dev, "Wake success at cycle: %d\n", j);
regmap_clear_bits(cs35l45->regmap, CS35L45_IRQ1_MASK_2,
CS35L45_DSP_VIRT2_MBOX_MASK);
return 0;
}
usleep_range(100, 200);
}
dev_err(cs35l45->dev, "Wake failed, re-enter hibernate: %d\n", ret);
cs35l45_setup_hibernate(cs35l45);
}
dev_err(cs35l45->dev, "Timed out waking device\n");
return -ETIMEDOUT;
}
static int cs35l45_runtime_suspend(struct device *dev)
{
struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
if (!cs35l45->dsp.preloaded || !cs35l45->dsp.cs_dsp.running)
return 0;
cs35l45_enter_hibernate(cs35l45);
regcache_cache_only(cs35l45->regmap, true);
regcache_mark_dirty(cs35l45->regmap);
dev_dbg(cs35l45->dev, "Runtime suspended\n");
return 0;
}
static int cs35l45_runtime_resume(struct device *dev)
{
struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
int ret;
if (!cs35l45->dsp.preloaded || !cs35l45->dsp.cs_dsp.running)
return 0;
dev_dbg(cs35l45->dev, "Runtime resume\n");
regcache_cache_only(cs35l45->regmap, false);
ret = cs35l45_exit_hibernate(cs35l45);
if (ret)
return ret;
ret = regcache_sync(cs35l45->regmap);
if (ret != 0)
dev_warn(cs35l45->dev, "regcache_sync failed: %d\n", ret);
/* Clear global error status */
regmap_clear_bits(cs35l45->regmap, CS35L45_ERROR_RELEASE, CS35L45_GLOBAL_ERR_RLS_MASK);
regmap_set_bits(cs35l45->regmap, CS35L45_ERROR_RELEASE, CS35L45_GLOBAL_ERR_RLS_MASK);
regmap_clear_bits(cs35l45->regmap, CS35L45_ERROR_RELEASE, CS35L45_GLOBAL_ERR_RLS_MASK);
return ret;
}
static int cs35l45_sys_suspend(struct device *dev)
{
struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
dev_dbg(cs35l45->dev, "System suspend, disabling IRQ\n");
disable_irq(cs35l45->irq);
return 0;
}
static int cs35l45_sys_suspend_noirq(struct device *dev)
{
struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
dev_dbg(cs35l45->dev, "Late system suspend, reenabling IRQ\n");
enable_irq(cs35l45->irq);
return 0;
}
static int cs35l45_sys_resume_noirq(struct device *dev)
{
struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
dev_dbg(cs35l45->dev, "Early system resume, disabling IRQ\n");
disable_irq(cs35l45->irq);
return 0;
}
static int cs35l45_sys_resume(struct device *dev)
{
struct cs35l45_private *cs35l45 = dev_get_drvdata(dev);
dev_dbg(cs35l45->dev, "System resume, reenabling IRQ\n");
enable_irq(cs35l45->irq);
return 0;
}
static int cs35l45_apply_property_config(struct cs35l45_private *cs35l45)
{
struct device_node *node = cs35l45->dev->of_node;
unsigned int gpio_regs[] = {CS35L45_GPIO1_CTRL1, CS35L45_GPIO2_CTRL1,
CS35L45_GPIO3_CTRL1};
unsigned int pad_regs[] = {CS35L45_SYNC_GPIO1,
CS35L45_INTB_GPIO2_MCLK_REF, CS35L45_GPIO3};
struct device_node *child;
unsigned int val;
char of_name[32];
int ret, i;
if (!node)
return 0;
for (i = 0; i < CS35L45_NUM_GPIOS; i++) {
sprintf(of_name, "cirrus,gpio-ctrl%d", i + 1);
child = of_get_child_by_name(node, of_name);
if (!child)
continue;
ret = of_property_read_u32(child, "gpio-dir", &val);
if (!ret)
regmap_update_bits(cs35l45->regmap, gpio_regs[i],
CS35L45_GPIO_DIR_MASK,
val << CS35L45_GPIO_DIR_SHIFT);
ret = of_property_read_u32(child, "gpio-lvl", &val);
if (!ret)
regmap_update_bits(cs35l45->regmap, gpio_regs[i],
CS35L45_GPIO_LVL_MASK,
val << CS35L45_GPIO_LVL_SHIFT);
ret = of_property_read_u32(child, "gpio-op-cfg", &val);
if (!ret)
regmap_update_bits(cs35l45->regmap, gpio_regs[i],
CS35L45_GPIO_OP_CFG_MASK,
val << CS35L45_GPIO_OP_CFG_SHIFT);
ret = of_property_read_u32(child, "gpio-pol", &val);
if (!ret)
regmap_update_bits(cs35l45->regmap, gpio_regs[i],
CS35L45_GPIO_POL_MASK,
val << CS35L45_GPIO_POL_SHIFT);
ret = of_property_read_u32(child, "gpio-ctrl", &val);
if (!ret)
regmap_update_bits(cs35l45->regmap, pad_regs[i],
CS35L45_GPIO_CTRL_MASK,
val << CS35L45_GPIO_CTRL_SHIFT);
ret = of_property_read_u32(child, "gpio-invert", &val);
if (!ret) {
regmap_update_bits(cs35l45->regmap, pad_regs[i],
CS35L45_GPIO_INVERT_MASK,
val << CS35L45_GPIO_INVERT_SHIFT);
if (i == 1)
cs35l45->irq_invert = val;
}
of_node_put(child);
}
if (device_property_read_u32(cs35l45->dev,
"cirrus,asp-sdout-hiz-ctrl", &val) == 0) {
regmap_update_bits(cs35l45->regmap, CS35L45_ASP_CONTROL3,
CS35L45_ASP_DOUT_HIZ_CTRL_MASK,
val << CS35L45_ASP_DOUT_HIZ_CTRL_SHIFT);
}
return 0;
}
static int cs35l45_dsp_virt2_mbox3_irq_handle(struct cs35l45_private *cs35l45,
const unsigned int cmd,
unsigned int data)
{
static char *speak_status = "Unknown";
switch (cmd) {
case EVENT_SPEAKER_STATUS:
switch (data) {
case 1:
speak_status = "All Clear";
break;
case 2:
speak_status = "Open Circuit";
break;
case 4:
speak_status = "Short Circuit";
break;
}
dev_info(cs35l45->dev, "MBOX event (SPEAKER_STATUS): %s\n",
speak_status);
break;
case EVENT_BOOT_DONE:
dev_dbg(cs35l45->dev, "MBOX event (BOOT_DONE)\n");
break;
default:
dev_err(cs35l45->dev, "MBOX event not supported %u\n", cmd);
return -EINVAL;
}
return 0;
}
static irqreturn_t cs35l45_dsp_virt2_mbox_cb(int irq, void *data)
{
struct cs35l45_private *cs35l45 = data;
unsigned int mbox_val;
int ret = 0;
ret = regmap_read(cs35l45->regmap, CS35L45_DSP_VIRT2_MBOX_3, &mbox_val);
if (!ret && mbox_val)
cs35l45_dsp_virt2_mbox3_irq_handle(cs35l45, mbox_val & CS35L45_MBOX3_CMD_MASK,
(mbox_val & CS35L45_MBOX3_DATA_MASK) >> CS35L45_MBOX3_DATA_SHIFT);
/* Handle DSP trace log IRQ */
ret = regmap_read(cs35l45->regmap, CS35L45_DSP_VIRT2_MBOX_4, &mbox_val);
if (!ret && mbox_val != 0) {
dev_err(cs35l45->dev, "Spurious DSP MBOX4 IRQ\n");
}
return IRQ_RETVAL(ret);
}
static irqreturn_t cs35l45_pll_unlock(int irq, void *data)
{
struct cs35l45_private *cs35l45 = data;
dev_dbg(cs35l45->dev, "PLL unlock detected!");
return IRQ_HANDLED;
}
static irqreturn_t cs35l45_pll_lock(int irq, void *data)
{
struct cs35l45_private *cs35l45 = data;
dev_dbg(cs35l45->dev, "PLL lock detected!");
return IRQ_HANDLED;
}
static irqreturn_t cs35l45_spk_safe_err(int irq, void *data);
static const struct cs35l45_irq cs35l45_irqs[] = {
CS35L45_IRQ(AMP_SHORT_ERR, "Amplifier short error", cs35l45_spk_safe_err),
CS35L45_IRQ(UVLO_VDDBATT_ERR, "VDDBATT undervoltage error", cs35l45_spk_safe_err),
CS35L45_IRQ(BST_SHORT_ERR, "Boost inductor error", cs35l45_spk_safe_err),
CS35L45_IRQ(BST_UVP_ERR, "Boost undervoltage error", cs35l45_spk_safe_err),
CS35L45_IRQ(TEMP_ERR, "Overtemperature error", cs35l45_spk_safe_err),
CS35L45_IRQ(AMP_CAL_ERR, "Amplifier calibration error", cs35l45_spk_safe_err),
CS35L45_IRQ(UVLO_VDDLV_ERR, "LV threshold detector error", cs35l45_spk_safe_err),
CS35L45_IRQ(GLOBAL_ERROR, "Global error", cs35l45_spk_safe_err),
CS35L45_IRQ(DSP_WDT_EXPIRE, "DSP Watchdog Timer", cs35l45_spk_safe_err),
CS35L45_IRQ(PLL_UNLOCK_FLAG_RISE, "PLL unlock", cs35l45_pll_unlock),
CS35L45_IRQ(PLL_LOCK_FLAG, "PLL lock", cs35l45_pll_lock),
CS35L45_IRQ(DSP_VIRT2_MBOX, "DSP virtual MBOX 2 write flag", cs35l45_dsp_virt2_mbox_cb),
};
static irqreturn_t cs35l45_spk_safe_err(int irq, void *data)
{
struct cs35l45_private *cs35l45 = data;
int i;
i = irq - regmap_irq_get_virq(cs35l45->irq_data, 0);
if (i < 0 || i >= ARRAY_SIZE(cs35l45_irqs))
dev_err(cs35l45->dev, "Unspecified global error condition (%d) detected!\n", irq);
else
dev_err(cs35l45->dev, "%s condition detected!\n", cs35l45_irqs[i].name);
return IRQ_HANDLED;
}
static const struct regmap_irq cs35l45_reg_irqs[] = {
CS35L45_REG_IRQ(IRQ1_EINT_1, AMP_SHORT_ERR),
CS35L45_REG_IRQ(IRQ1_EINT_1, UVLO_VDDBATT_ERR),
CS35L45_REG_IRQ(IRQ1_EINT_1, BST_SHORT_ERR),
CS35L45_REG_IRQ(IRQ1_EINT_1, BST_UVP_ERR),
CS35L45_REG_IRQ(IRQ1_EINT_1, TEMP_ERR),
CS35L45_REG_IRQ(IRQ1_EINT_3, AMP_CAL_ERR),
CS35L45_REG_IRQ(IRQ1_EINT_18, UVLO_VDDLV_ERR),
CS35L45_REG_IRQ(IRQ1_EINT_18, GLOBAL_ERROR),
CS35L45_REG_IRQ(IRQ1_EINT_2, DSP_WDT_EXPIRE),
CS35L45_REG_IRQ(IRQ1_EINT_3, PLL_UNLOCK_FLAG_RISE),
CS35L45_REG_IRQ(IRQ1_EINT_3, PLL_LOCK_FLAG),
CS35L45_REG_IRQ(IRQ1_EINT_2, DSP_VIRT2_MBOX),
};
static const struct regmap_irq_chip cs35l45_regmap_irq_chip = {
.name = "cs35l45 IRQ1 Controller",
.main_status = CS35L45_IRQ1_STATUS,
.status_base = CS35L45_IRQ1_EINT_1,
.mask_base = CS35L45_IRQ1_MASK_1,
.ack_base = CS35L45_IRQ1_EINT_1,
.num_regs = 18,
.irqs = cs35l45_reg_irqs,
.num_irqs = ARRAY_SIZE(cs35l45_reg_irqs),
.runtime_pm = true,
};
static int cs35l45_initialize(struct cs35l45_private *cs35l45)
{
struct device *dev = cs35l45->dev;
unsigned int dev_id[5];
unsigned int sts;
int ret;
ret = regmap_read_poll_timeout(cs35l45->regmap, CS35L45_IRQ1_EINT_4, sts,
(sts & CS35L45_OTP_BOOT_DONE_STS_MASK),
1000, 5000);
if (ret < 0) {
dev_err(cs35l45->dev, "Timeout waiting for OTP boot\n");
return ret;
}
ret = regmap_bulk_read(cs35l45->regmap, CS35L45_DEVID, dev_id, ARRAY_SIZE(dev_id));
if (ret) {
dev_err(cs35l45->dev, "Get Device ID failed: %d\n", ret);
return ret;
}
switch (dev_id[0]) {
case 0x35A450:
case 0x35A460:
break;
default:
dev_err(cs35l45->dev, "Bad DEVID 0x%x\n", dev_id[0]);
return -ENODEV;
}
dev_info(cs35l45->dev, "Cirrus Logic CS35L45: REVID %02X OTPID %02X\n",
dev_id[1], dev_id[4]);
regmap_write(cs35l45->regmap, CS35L45_IRQ1_EINT_4,
CS35L45_OTP_BOOT_DONE_STS_MASK | CS35L45_OTP_BUSY_MASK);
ret = cs35l45_apply_patch(cs35l45);
if (ret < 0) {
dev_err(dev, "Failed to apply init patch %d\n", ret);
return ret;
}
ret = cs35l45_apply_property_config(cs35l45);
if (ret < 0)
return ret;
cs35l45->amplifier_mode = AMP_MODE_SPK;
return 0;
}
static const struct reg_sequence cs35l45_fs_errata_patch[] = {
{0x02B80080, 0x00000001},
{0x02B80088, 0x00000001},
{0x02B80090, 0x00000001},
{0x02B80098, 0x00000001},
{0x02B800A0, 0x00000001},
{0x02B800A8, 0x00000001},
{0x02B800B0, 0x00000001},
{0x02B800B8, 0x00000001},
{0x02B80280, 0x00000001},
{0x02B80288, 0x00000001},
{0x02B80290, 0x00000001},
{0x02B80298, 0x00000001},
{0x02B802A0, 0x00000001},
{0x02B802A8, 0x00000001},
{0x02B802B0, 0x00000001},
{0x02B802B8, 0x00000001},
};
static const struct cs_dsp_region cs35l45_dsp1_regions[] = {
{ .type = WMFW_HALO_PM_PACKED, .base = CS35L45_DSP1_PMEM_0 },
{ .type = WMFW_HALO_XM_PACKED, .base = CS35L45_DSP1_XMEM_PACK_0 },
{ .type = WMFW_HALO_YM_PACKED, .base = CS35L45_DSP1_YMEM_PACK_0 },
{. type = WMFW_ADSP2_XM, .base = CS35L45_DSP1_XMEM_UNPACK24_0},
{. type = WMFW_ADSP2_YM, .base = CS35L45_DSP1_YMEM_UNPACK24_0},
};
static int cs35l45_dsp_init(struct cs35l45_private *cs35l45)
{
struct wm_adsp *dsp = &cs35l45->dsp;
int ret;
dsp->part = "cs35l45";
dsp->fw = 9; /* 9 is WM_ADSP_FW_SPK_PROT in wm_adsp.c */
dsp->toggle_preload = true;
dsp->cs_dsp.num = 1;
dsp->cs_dsp.type = WMFW_HALO;
dsp->cs_dsp.rev = 0;
dsp->cs_dsp.dev = cs35l45->dev;
dsp->cs_dsp.regmap = cs35l45->regmap;
dsp->cs_dsp.base = CS35L45_DSP1_CLOCK_FREQ;
dsp->cs_dsp.base_sysinfo = CS35L45_DSP1_SYS_ID;
dsp->cs_dsp.mem = cs35l45_dsp1_regions;
dsp->cs_dsp.num_mems = ARRAY_SIZE(cs35l45_dsp1_regions);
dsp->cs_dsp.lock_regions = 0xFFFFFFFF;
ret = wm_halo_init(dsp);
regmap_multi_reg_write(cs35l45->regmap, cs35l45_fs_errata_patch,
ARRAY_SIZE(cs35l45_fs_errata_patch));
return ret;
}
int cs35l45_probe(struct cs35l45_private *cs35l45)
{
struct device *dev = cs35l45->dev;
unsigned long irq_pol = IRQF_ONESHOT | IRQF_SHARED;
int ret, i, irq;
cs35l45->vdd_batt = devm_regulator_get(dev, "vdd-batt");
if (IS_ERR(cs35l45->vdd_batt))
return dev_err_probe(dev, PTR_ERR(cs35l45->vdd_batt),
"Failed to request vdd-batt\n");
cs35l45->vdd_a = devm_regulator_get(dev, "vdd-a");
if (IS_ERR(cs35l45->vdd_a))
return dev_err_probe(dev, PTR_ERR(cs35l45->vdd_a),
"Failed to request vdd-a\n");
/* VDD_BATT must always be enabled before other supplies */
ret = regulator_enable(cs35l45->vdd_batt);
if (ret < 0)
return dev_err_probe(dev, ret, "Failed to enable vdd-batt\n");
ret = regulator_enable(cs35l45->vdd_a);
if (ret < 0)
return dev_err_probe(dev, ret, "Failed to enable vdd-a\n");
/* If reset is shared only one instance can claim it */
cs35l45->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(cs35l45->reset_gpio)) {
ret = PTR_ERR(cs35l45->reset_gpio);
cs35l45->reset_gpio = NULL;
if (ret == -EBUSY) {
dev_dbg(dev, "Reset line busy, assuming shared reset\n");
} else {
dev_err_probe(dev, ret, "Failed to get reset GPIO\n");
goto err;
}
}
if (cs35l45->reset_gpio) {
usleep_range(CS35L45_RESET_HOLD_US, CS35L45_RESET_HOLD_US + 100);
gpiod_set_value_cansleep(cs35l45->reset_gpio, 1);
}
usleep_range(CS35L45_RESET_US, CS35L45_RESET_US + 100);
ret = cs35l45_initialize(cs35l45);
if (ret < 0)
goto err_reset;
ret = cs35l45_dsp_init(cs35l45);
if (ret < 0)
goto err_reset;
pm_runtime_set_autosuspend_delay(cs35l45->dev, 3000);
pm_runtime_use_autosuspend(cs35l45->dev);
pm_runtime_mark_last_busy(cs35l45->dev);
pm_runtime_set_active(cs35l45->dev);
pm_runtime_get_noresume(cs35l45->dev);
pm_runtime_enable(cs35l45->dev);
if (cs35l45->irq) {
if (cs35l45->irq_invert)
irq_pol |= IRQF_TRIGGER_HIGH;
else
irq_pol |= IRQF_TRIGGER_LOW;
ret = devm_regmap_add_irq_chip(dev, cs35l45->regmap, cs35l45->irq, irq_pol, 0,
&cs35l45_regmap_irq_chip, &cs35l45->irq_data);
if (ret) {
dev_err(dev, "Failed to register IRQ chip: %d\n", ret);
goto err_dsp;
}
for (i = 0; i < ARRAY_SIZE(cs35l45_irqs); i++) {
irq = regmap_irq_get_virq(cs35l45->irq_data, cs35l45_irqs[i].irq);
if (irq < 0) {
dev_err(dev, "Failed to get %s\n", cs35l45_irqs[i].name);
ret = irq;
goto err_dsp;
}
ret = devm_request_threaded_irq(dev, irq, NULL, cs35l45_irqs[i].handler,
irq_pol, cs35l45_irqs[i].name, cs35l45);
if (ret) {
dev_err(dev, "Failed to request IRQ %s: %d\n",
cs35l45_irqs[i].name, ret);
goto err_dsp;
}
}
}
ret = devm_snd_soc_register_component(dev, &cs35l45_component,
cs35l45_dai,
ARRAY_SIZE(cs35l45_dai));
if (ret < 0)
goto err_dsp;
pm_runtime_put_autosuspend(cs35l45->dev);
return 0;
err_dsp:
pm_runtime_disable(cs35l45->dev);
pm_runtime_put_noidle(cs35l45->dev);
wm_adsp2_remove(&cs35l45->dsp);
err_reset:
gpiod_set_value_cansleep(cs35l45->reset_gpio, 0);
err:
regulator_disable(cs35l45->vdd_a);
regulator_disable(cs35l45->vdd_batt);
return ret;
}
EXPORT_SYMBOL_NS_GPL(cs35l45_probe, SND_SOC_CS35L45);
void cs35l45_remove(struct cs35l45_private *cs35l45)
{
pm_runtime_get_sync(cs35l45->dev);
pm_runtime_disable(cs35l45->dev);
wm_adsp2_remove(&cs35l45->dsp);
gpiod_set_value_cansleep(cs35l45->reset_gpio, 0);
pm_runtime_put_noidle(cs35l45->dev);
regulator_disable(cs35l45->vdd_a);
/* VDD_BATT must be the last to power-off */
regulator_disable(cs35l45->vdd_batt);
}
EXPORT_SYMBOL_NS_GPL(cs35l45_remove, SND_SOC_CS35L45);
EXPORT_GPL_DEV_PM_OPS(cs35l45_pm_ops) = {
RUNTIME_PM_OPS(cs35l45_runtime_suspend, cs35l45_runtime_resume, NULL)
SYSTEM_SLEEP_PM_OPS(cs35l45_sys_suspend, cs35l45_sys_resume)
NOIRQ_SYSTEM_SLEEP_PM_OPS(cs35l45_sys_suspend_noirq, cs35l45_sys_resume_noirq)
};
MODULE_DESCRIPTION("ASoC CS35L45 driver");
MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>");
MODULE_AUTHOR("Richard Fitzgerald <rf@opensource.cirrus.com>");
MODULE_LICENSE("GPL");
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