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authorLucas Tanure <tanureal@opensource.cirrus.com>2021-08-11 21:56:43 +0300
committerTakashi Iwai <tiwai@suse.de>2021-08-12 14:41:50 +0300
commit165b81c4ac3062d61e5422c85fcd55e8d0f805da (patch)
treeee909341839d1c3e876d443ddd1933ebf1274200 /sound/pci/hda/patch_cs8409.c
parent8de4e5a6680df739f2368628e738d08820320484 (diff)
downloadlinux-165b81c4ac3062d61e5422c85fcd55e8d0f805da.tar.xz
ALSA: hda/cs8409: Support i2c bulk read/write functions
This allows mutex locks to be moved into i2c functions, as the bulk read/write functions can lock/unlock themselves to prevent interruption of sequence reads/writes. Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com> Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com> Link: https://lore.kernel.org/r/20210811185654.6837-17-vitalyr@opensource.cirrus.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_cs8409.c')
-rw-r--r--sound/pci/hda/patch_cs8409.c208
1 files changed, 130 insertions, 78 deletions
diff --git a/sound/pci/hda/patch_cs8409.c b/sound/pci/hda/patch_cs8409.c
index bb3c6ef5eab6..6c1dbff13aeb 100644
--- a/sound/pci/hda/patch_cs8409.c
+++ b/sound/pci/hda/patch_cs8409.c
@@ -86,13 +86,13 @@ static void cs8409_disable_i2c_clock(struct hda_codec *codec)
{
struct cs8409_spec *spec = codec->spec;
- mutex_lock(&spec->cs8409_i2c_mux);
+ 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->cs8409_i2c_mux);
+ mutex_unlock(&spec->i2c_mux);
}
/*
@@ -195,12 +195,12 @@ static int cs8409_i2c_set_page(struct hda_codec *codec, unsigned int i2c_reg)
* cs8409_i2c_read - CS8409 I2C Read.
* @codec: the codec instance
* @i2c_address: I2C Address
- * @i2c_reg: Register to read
+ * @addr: Register to read
*
* CS8409 I2C Read.
* Returns negative on error, otherwise returns read value in bits 0-7.
*/
-static int cs8409_i2c_read(struct hda_codec *codec, unsigned int i2c_address, unsigned int i2c_reg)
+static int cs8409_i2c_read(struct hda_codec *codec, unsigned int i2c_address, unsigned int addr)
{
struct cs8409_spec *spec = codec->spec;
unsigned int i2c_reg_data;
@@ -209,41 +209,90 @@ static int cs8409_i2c_read(struct hda_codec *codec, unsigned int i2c_address, un
if (spec->cs42l42_suspended)
return -EPERM;
+ mutex_lock(&spec->i2c_mux);
cs8409_enable_i2c_clock(codec);
cs8409_set_i2c_dev_addr(codec, i2c_address);
- if (cs8409_i2c_set_page(codec, i2c_reg)) {
+ if (cs8409_i2c_set_page(codec, addr)) {
codec_err(codec, "%s() Paged Transaction Failed 0x%02x : 0x%04x\n",
- __func__, i2c_address, i2c_reg);
+ __func__, i2c_address, addr);
return -EIO;
}
- i2c_reg_data = (i2c_reg << 8) & 0x0ffff;
+ i2c_reg_data = (addr << 8) & 0x0ffff;
cs8409_vendor_coef_set(codec, CS8409_I2C_QREAD, i2c_reg_data);
- if (cs8409_i2c_wait_complete(codec) < 0) {
- codec_err(codec, "%s() Transaction Failed 0x%02x : 0x%04x\n",
- __func__, i2c_address, i2c_reg);
- return -EIO;
- }
+ 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__, i2c_address, addr);
+ return -EIO;
+}
+
+/**
+ * cs8409_i2c_bulk_read - CS8409 I2C Read Sequence.
+ * @codec: 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 hda_codec *codec, unsigned int i2c_address,
+ struct cs8409_i2c_param *seq, int count)
+{
+ struct cs8409_spec *spec = codec->spec;
+ unsigned int i2c_reg_data;
+ int i;
+
+ if (spec->cs42l42_suspended)
+ return -EPERM;
+
+ mutex_lock(&spec->i2c_mux);
+ cs8409_set_i2c_dev_addr(codec, i2c_address);
+
+ for (i = 0; i < count; i++) {
+ cs8409_enable_i2c_clock(codec);
+ if (cs8409_i2c_set_page(codec, 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", i2c_address);
+ return -EIO;
}
/**
* cs8409_i2c_write - CS8409 I2C Write.
* @codec: the codec instance
* @i2c_address: I2C Address
- * @i2c_reg: Register to write to
- * @i2c_data: Data to write
+ * @addr: Register to write to
+ * @value: Data to write
*
* CS8409 I2C Write.
* Returns negative on error, otherwise returns 0.
*/
-static int cs8409_i2c_write(struct hda_codec *codec, unsigned int i2c_address, unsigned int i2c_reg,
- unsigned int i2c_data)
+static int cs8409_i2c_write(struct hda_codec *codec, unsigned int i2c_address, unsigned int addr,
+ unsigned int value)
{
struct cs8409_spec *spec = codec->spec;
unsigned int i2c_reg_data;
@@ -251,25 +300,73 @@ static int cs8409_i2c_write(struct hda_codec *codec, unsigned int i2c_address, u
if (spec->cs42l42_suspended)
return -EPERM;
+ mutex_lock(&spec->i2c_mux);
+
cs8409_enable_i2c_clock(codec);
cs8409_set_i2c_dev_addr(codec, i2c_address);
- if (cs8409_i2c_set_page(codec, i2c_reg)) {
+ if (cs8409_i2c_set_page(codec, addr)) {
codec_err(codec, "%s() Paged Transaction Failed 0x%02x : 0x%04x\n",
- __func__, i2c_address, i2c_reg);
+ __func__, i2c_address, addr);
return -EIO;
}
- i2c_reg_data = ((i2c_reg << 8) & 0x0ff00) | (i2c_data & 0x0ff);
+ 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) {
- codec_err(codec, "%s() Transaction Failed 0x%02x : 0x%04x\n",
- __func__, i2c_address, i2c_reg);
- return -EIO;
+ 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__, i2c_address, addr);
+ return -EIO;
+}
+
+/**
+ * cs8409_i2c_bulk_write - CS8409 I2C Write Sequence.
+ * @codec: 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 hda_codec *codec, unsigned int i2c_address,
+ const struct cs8409_i2c_param *seq, int count)
+{
+ struct cs8409_spec *spec = codec->spec;
+ unsigned int i2c_reg_data;
+ int i;
+
+ if (spec->cs42l42_suspended)
+ return -EPERM;
+
+ mutex_lock(&spec->i2c_mux);
+ cs8409_set_i2c_dev_addr(codec, i2c_address);
+
+ for (i = 0; i < count; i++) {
+ cs8409_enable_i2c_clock(codec);
+ if (cs8409_i2c_set_page(codec, 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", i2c_address);
+ return -EIO;
}
int cs8409_cs42l42_volume_info(struct snd_kcontrol *kctrl, struct snd_ctl_elem_info *uinfo)
@@ -333,7 +430,6 @@ int cs8409_cs42l42_volume_put(struct snd_kcontrol *kctrl, struct snd_ctl_elem_va
switch (ofs) {
case CS42L42_VOL_DAC:
- mutex_lock(&spec->cs8409_i2c_mux);
if (chs & BIT(0)) {
spec->vol[ofs] = *valp;
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, CS8409_CS42L42_REG_HS_VOL_CHA,
@@ -346,16 +442,13 @@ int cs8409_cs42l42_volume_put(struct snd_kcontrol *kctrl, struct snd_ctl_elem_va
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, CS8409_CS42L42_REG_HS_VOL_CHB,
-(spec->vol[ofs]) & CS8409_CS42L42_REG_HS_VOL_MASK);
}
- mutex_unlock(&spec->cs8409_i2c_mux);
break;
case CS42L42_VOL_ADC:
- mutex_lock(&spec->cs8409_i2c_mux);
if (chs & BIT(0)) {
spec->vol[ofs] = *valp;
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, CS8409_CS42L42_REG_AMIC_VOL,
spec->vol[ofs] & CS8409_CS42L42_REG_AMIC_VOL_MASK);
}
- mutex_unlock(&spec->cs8409_i2c_mux);
break;
default:
break;
@@ -368,6 +461,12 @@ int cs8409_cs42l42_volume_put(struct snd_kcontrol *kctrl, struct snd_ctl_elem_va
static void cs8409_cs42l42_reset(struct hda_codec *codec)
{
struct cs8409_spec *spec = codec->spec;
+ struct cs8409_i2c_param irq_regs[] = {
+ { 0x1308, 0x00 },
+ { 0x1309, 0x00 },
+ { 0x130A, 0x00 },
+ { 0x130F, 0x00 },
+ };
/* Assert RTS# line */
snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_GPIO_DATA, 0);
@@ -381,25 +480,13 @@ static void cs8409_cs42l42_reset(struct hda_codec *codec)
spec->cs42l42_suspended = 0;
spec->last_page = 0;
- mutex_lock(&spec->cs8409_i2c_mux);
-
/* Clear interrupts, by reading interrupt status registers */
- cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x1308);
- cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x1309);
- cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x130A);
- cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x130F);
-
- mutex_unlock(&spec->cs8409_i2c_mux);
-
+ cs8409_i2c_bulk_read(codec, CS42L42_I2C_ADDR, irq_regs, ARRAY_SIZE(irq_regs));
}
/* Configure CS42L42 slave codec for jack autodetect */
static void cs8409_cs42l42_enable_jack_detect(struct hda_codec *codec)
{
- struct cs8409_spec *spec = codec->spec;
-
- mutex_lock(&spec->cs8409_i2c_mux);
-
/* Set TIP_SENSE_EN for analog front-end of tip sense.
* Additionally set HSBIAS_SENSE_EN for some variants.
*/
@@ -418,17 +505,11 @@ static void cs8409_cs42l42_enable_jack_detect(struct hda_codec *codec)
cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x130f);
/* Enable interrupt */
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, 0x1320, 0xF3);
-
- mutex_unlock(&spec->cs8409_i2c_mux);
}
/* Enable and run CS42L42 slave codec jack auto detect */
static void cs8409_cs42l42_run_jack_detect(struct hda_codec *codec)
{
- struct cs8409_spec *spec = codec->spec;
-
- mutex_lock(&spec->cs8409_i2c_mux);
-
/* Clear interrupts */
cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x1308);
cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x1b77);
@@ -447,22 +528,6 @@ static void cs8409_cs42l42_run_jack_detect(struct hda_codec *codec)
/* Wait ~10ms */
usleep_range(10000, 25000);
- mutex_unlock(&spec->cs8409_i2c_mux);
-
-}
-
-static void cs8409_cs42l42_reg_setup(struct hda_codec *codec)
-{
- const struct cs8409_i2c_param *seq = cs42l42_init_reg_seq;
- struct cs8409_spec *spec = codec->spec;
-
- mutex_lock(&spec->cs8409_i2c_mux);
-
- for (; seq->addr; seq++)
- cs8409_i2c_write(codec, CS42L42_I2C_ADDR, seq->addr, seq->reg);
-
- mutex_unlock(&spec->cs8409_i2c_mux);
-
}
/*
@@ -490,15 +555,11 @@ static void cs8409_jack_unsol_event(struct hda_codec *codec, unsigned int res)
if (res & CS8409_CS42L42_INT)
return;
- mutex_lock(&spec->cs8409_i2c_mux);
-
/* Read jack detect status registers */
reg_cdc_status = cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x1308);
reg_hs_status = cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x1124);
reg_ts_status = cs8409_i2c_read(codec, CS42L42_I2C_ADDR, 0x130f);
- mutex_unlock(&spec->cs8409_i2c_mux);
-
/* If status values are < 0, read error has occurred. */
if (reg_cdc_status < 0 || reg_hs_status < 0 || reg_ts_status < 0)
return;
@@ -506,10 +567,8 @@ static void cs8409_jack_unsol_event(struct hda_codec *codec, unsigned int res)
/* HSDET_AUTO_DONE */
if (reg_cdc_status & CS42L42_HSDET_AUTO_DONE) {
- mutex_lock(&spec->cs8409_i2c_mux);
/* Disable HSDET_AUTO_DONE */
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, 0x131b, 0xFF);
- mutex_unlock(&spec->cs8409_i2c_mux);
type = ((reg_hs_status & CS42L42_HSTYPE_MASK) + 1);
/* CS42L42 reports optical jack as type 4
@@ -533,10 +592,8 @@ static void cs8409_jack_unsol_event(struct hda_codec *codec, unsigned int res)
}
}
- mutex_lock(&spec->cs8409_i2c_mux);
/* Re-Enable Tip Sense Interrupt */
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, 0x1320, 0xF3);
- mutex_unlock(&spec->cs8409_i2c_mux);
} else {
/* TIP_SENSE INSERT/REMOVE */
@@ -600,10 +657,8 @@ static int cs8409_suspend(struct hda_codec *codec)
cs8409_enable_ur(codec, 0);
- mutex_lock(&spec->cs8409_i2c_mux);
/* Power down CS42L42 ASP/EQ/MIX/HP */
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, 0x1101, 0xfe);
- mutex_unlock(&spec->cs8409_i2c_mux);
spec->cs42l42_suspended = 1;
@@ -660,26 +715,23 @@ static void cs8409_cs42l42_hw_init(struct hda_codec *codec)
cs8409_cs42l42_reset(codec);
/* Initialise CS42L42 companion codec */
- cs8409_cs42l42_reg_setup(codec);
+ cs8409_i2c_bulk_write(codec, CS42L42_I2C_ADDR, cs42l42_init_reg_seq,
+ CS42L42_INIT_REG_SEQ_SIZE);
if (codec->fixup_id == CS8409_WARLOCK || codec->fixup_id == CS8409_CYBORG) {
/* FULL_SCALE_VOL = 0 for Warlock / Cyborg */
- mutex_lock(&spec->cs8409_i2c_mux);
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, 0x2001, 0x01);
- mutex_unlock(&spec->cs8409_i2c_mux);
/* DMIC1_MO=00b, DMIC1/2_SR=1 */
cs8409_vendor_coef_set(codec, 0x09, 0x0003);
}
/* Restore Volumes after Resume */
- mutex_lock(&spec->cs8409_i2c_mux);
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, CS8409_CS42L42_REG_HS_VOL_CHA,
-(spec->vol[1]) & CS8409_CS42L42_REG_HS_VOL_MASK);
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, CS8409_CS42L42_REG_HS_VOL_CHB,
-(spec->vol[2]) & CS8409_CS42L42_REG_HS_VOL_MASK);
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, CS8409_CS42L42_REG_AMIC_VOL,
spec->vol[0] & CS8409_CS42L42_REG_AMIC_VOL_MASK);
- mutex_unlock(&spec->cs8409_i2c_mux);
cs8409_cs42l42_enable_jack_detect(codec);
@@ -768,7 +820,7 @@ void cs8409_cs42l42_fixups(struct hda_codec *codec, const struct hda_fixup *fix,
spec->exec_verb = codec->core.exec_verb;
codec->core.exec_verb = cs8409_cs42l42_exec_verb;
- mutex_init(&spec->cs8409_i2c_mux);
+ mutex_init(&spec->i2c_mux);
codec->patch_ops = cs8409_cs42l42_patch_ops;