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Diffstat (limited to 'sound/soc/codecs/wm_hubs.c')
-rw-r--r--sound/soc/codecs/wm_hubs.c108
1 files changed, 71 insertions, 37 deletions
diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c
index 0e24092..c466982 100644
--- a/sound/soc/codecs/wm_hubs.c
+++ b/sound/soc/codecs/wm_hubs.c
@@ -22,7 +22,6 @@
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
-#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
@@ -94,41 +93,61 @@ static void calibrate_dc_servo(struct snd_soc_codec *codec)
struct wm_hubs_data *hubs = snd_soc_codec_get_drvdata(codec);
u16 reg, reg_l, reg_r, dcs_cfg;
- /* Set for 32 series updates */
- snd_soc_update_bits(codec, WM8993_DC_SERVO_1,
- WM8993_DCS_SERIES_NO_01_MASK,
- 32 << WM8993_DCS_SERIES_NO_01_SHIFT);
- wait_for_dc_servo(codec,
- WM8993_DCS_TRIG_SERIES_0 | WM8993_DCS_TRIG_SERIES_1);
+ /* If we're using a digital only path and have a previously
+ * callibrated DC servo offset stored then use that. */
+ if (hubs->class_w && hubs->class_w_dcs) {
+ dev_dbg(codec->dev, "Using cached DC servo offset %x\n",
+ hubs->class_w_dcs);
+ snd_soc_write(codec, WM8993_DC_SERVO_3, hubs->class_w_dcs);
+ wait_for_dc_servo(codec,
+ WM8993_DCS_TRIG_DAC_WR_0 |
+ WM8993_DCS_TRIG_DAC_WR_1);
+ return;
+ }
+
+ /* Devices not using a DCS code correction have startup mode */
+ if (hubs->dcs_codes) {
+ /* Set for 32 series updates */
+ snd_soc_update_bits(codec, WM8993_DC_SERVO_1,
+ WM8993_DCS_SERIES_NO_01_MASK,
+ 32 << WM8993_DCS_SERIES_NO_01_SHIFT);
+ wait_for_dc_servo(codec,
+ WM8993_DCS_TRIG_SERIES_0 |
+ WM8993_DCS_TRIG_SERIES_1);
+ } else {
+ wait_for_dc_servo(codec,
+ WM8993_DCS_TRIG_STARTUP_0 |
+ WM8993_DCS_TRIG_STARTUP_1);
+ }
+
+ /* Different chips in the family support different readback
+ * methods.
+ */
+ switch (hubs->dcs_readback_mode) {
+ case 0:
+ reg_l = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_1)
+ & WM8993_DCS_INTEG_CHAN_0_MASK;
+ reg_r = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_2)
+ & WM8993_DCS_INTEG_CHAN_1_MASK;
+ break;
+ case 1:
+ reg = snd_soc_read(codec, WM8993_DC_SERVO_3);
+ reg_l = (reg & WM8993_DCS_DAC_WR_VAL_1_MASK)
+ >> WM8993_DCS_DAC_WR_VAL_1_SHIFT;
+ reg_r = reg & WM8993_DCS_DAC_WR_VAL_0_MASK;
+ break;
+ default:
+ WARN(1, "Unknown DCS readback method\n");
+ break;
+ }
+
+ dev_dbg(codec->dev, "DCS input: %x %x\n", reg_l, reg_r);
/* Apply correction to DC servo result */
if (hubs->dcs_codes) {
dev_dbg(codec->dev, "Applying %d code DC servo correction\n",
hubs->dcs_codes);
- /* Different chips in the family support different
- * readback methods.
- */
- switch (hubs->dcs_readback_mode) {
- case 0:
- reg_l = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_1)
- & WM8993_DCS_INTEG_CHAN_0_MASK;;
- reg_r = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_2)
- & WM8993_DCS_INTEG_CHAN_1_MASK;
- break;
- case 1:
- reg = snd_soc_read(codec, WM8993_DC_SERVO_3);
- reg_l = (reg & WM8993_DCS_DAC_WR_VAL_1_MASK)
- >> WM8993_DCS_DAC_WR_VAL_1_SHIFT;
- reg_r = reg & WM8993_DCS_DAC_WR_VAL_0_MASK;
- break;
- default:
- WARN(1, "Unknown DCS readback method\n");
- break;
- }
-
- dev_dbg(codec->dev, "DCS input: %x %x\n", reg_l, reg_r);
-
/* HPOUT1L */
if (reg_l + hubs->dcs_codes > 0 &&
reg_l + hubs->dcs_codes < 0xff)
@@ -148,7 +167,15 @@ static void calibrate_dc_servo(struct snd_soc_codec *codec)
wait_for_dc_servo(codec,
WM8993_DCS_TRIG_DAC_WR_0 |
WM8993_DCS_TRIG_DAC_WR_1);
+ } else {
+ dcs_cfg = reg_l << WM8993_DCS_DAC_WR_VAL_1_SHIFT;
+ dcs_cfg |= reg_r;
}
+
+ /* Save the callibrated offset if we're in class W mode and
+ * therefore don't have any analogue signal mixed in. */
+ if (hubs->class_w)
+ hubs->class_w_dcs = dcs_cfg;
}
/*
@@ -163,6 +190,9 @@ static int wm8993_put_dc_servo(struct snd_kcontrol *kcontrol,
ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
+ /* Updating the analogue gains invalidates the DC servo cache */
+ hubs->class_w_dcs = 0;
+
/* If we're applying an offset correction then updating the
* callibration would be likely to introduce further offsets. */
if (hubs->dcs_codes)
@@ -791,6 +821,8 @@ static const struct snd_soc_dapm_route lineout2_se_routes[] = {
int wm_hubs_add_analogue_controls(struct snd_soc_codec *codec)
{
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
/* Latch volume update bits & default ZC on */
snd_soc_update_bits(codec, WM8993_LEFT_LINE_INPUT_1_2_VOLUME,
WM8993_IN1_VU, WM8993_IN1_VU);
@@ -819,7 +851,7 @@ int wm_hubs_add_analogue_controls(struct snd_soc_codec *codec)
snd_soc_add_controls(codec, analogue_snd_controls,
ARRAY_SIZE(analogue_snd_controls));
- snd_soc_dapm_new_controls(codec, analogue_dapm_widgets,
+ snd_soc_dapm_new_controls(dapm, analogue_dapm_widgets,
ARRAY_SIZE(analogue_dapm_widgets));
return 0;
}
@@ -828,24 +860,26 @@ EXPORT_SYMBOL_GPL(wm_hubs_add_analogue_controls);
int wm_hubs_add_analogue_routes(struct snd_soc_codec *codec,
int lineout1_diff, int lineout2_diff)
{
- snd_soc_dapm_add_routes(codec, analogue_routes,
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ snd_soc_dapm_add_routes(dapm, analogue_routes,
ARRAY_SIZE(analogue_routes));
if (lineout1_diff)
- snd_soc_dapm_add_routes(codec,
+ snd_soc_dapm_add_routes(dapm,
lineout1_diff_routes,
ARRAY_SIZE(lineout1_diff_routes));
else
- snd_soc_dapm_add_routes(codec,
+ snd_soc_dapm_add_routes(dapm,
lineout1_se_routes,
ARRAY_SIZE(lineout1_se_routes));
if (lineout2_diff)
- snd_soc_dapm_add_routes(codec,
+ snd_soc_dapm_add_routes(dapm,
lineout2_diff_routes,
ARRAY_SIZE(lineout2_diff_routes));
else
- snd_soc_dapm_add_routes(codec,
+ snd_soc_dapm_add_routes(dapm,
lineout2_se_routes,
ARRAY_SIZE(lineout2_se_routes));
@@ -872,7 +906,7 @@ int wm_hubs_handle_analogue_pdata(struct snd_soc_codec *codec,
* VMID as an output and can disable it.
*/
if (lineout1_diff && lineout2_diff)
- codec->idle_bias_off = 1;
+ codec->dapm.idle_bias_off = 1;
if (lineout1fb)
snd_soc_update_bits(codec, WM8993_ADDITIONAL_CONTROL,
generated by cgit v1.1 at 2024-05-15 17:24:21 +0000