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[media] Add proper audio support for Nova-S Plus with wm8775 ADC

This patch adds audio DMA capture and ALSA mixer elements for the line
input jack of the Hauppauge Nova-S-plus DVB-S PCI card.  The Nova-S-plus
has a WM8775 ADC that is currently not detected.  This patch enables
this chip and exports volume, balance mute and ALC elements for ALSA
mixer controls.

[mchehab@redhat.com: Changed the patch to only talk with wm8775 if board
info says so. Also, added platform_data support, to avoid changing the
behaviour for other boards, and fixed CodingStyle]

[awalls@md.metrocast.net: Changed patch to make the WM8775_GID defintion
bridge driver private and let the bridge driver set the value of
v4l2_subdev.grp_id.]

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Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
  • Loading branch information...
1 parent 724dcbf commit 6951803c2402d1af0e76df051cc9b117f504550f Lawrence Rust committed with Mauro Carvalho Chehab Feb 6, 2011
View
118 drivers/media/video/cx88/cx88-alsa.c
@@ -40,6 +40,7 @@
#include <sound/control.h>
#include <sound/initval.h>
#include <sound/tlv.h>
+#include <media/wm8775.h>
#include "cx88.h"
#include "cx88-reg.h"
@@ -577,6 +578,35 @@ static int snd_cx88_volume_get(struct snd_kcontrol *kcontrol,
return 0;
}
+static void snd_cx88_wm8775_volume_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *value)
+{
+ snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
+ struct cx88_core *core = chip->core;
+ struct v4l2_control client_ctl;
+ int left = value->value.integer.value[0];
+ int right = value->value.integer.value[1];
+ int v, b;
+
+ memset(&client_ctl, 0, sizeof(client_ctl));
+
+ /* Pass volume & balance onto any WM8775 */
+ if (left >= right) {
+ v = left << 10;
+ b = left ? (0x8000 * right) / left : 0x8000;
+ } else {
+ v = right << 10;
+ b = right ? 0xffff - (0x8000 * left) / right : 0x8000;
+ }
+ client_ctl.value = v;
+ client_ctl.id = V4L2_CID_AUDIO_VOLUME;
+ call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
+
+ client_ctl.value = b;
+ client_ctl.id = V4L2_CID_AUDIO_BALANCE;
+ call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
+}
+
/* OK - TODO: test it */
static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *value)
@@ -587,25 +617,28 @@ static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol,
int changed = 0;
u32 old;
+ if (core->board.audio_chip == V4L2_IDENT_WM8775)
+ snd_cx88_wm8775_volume_put(kcontrol, value);
+
left = value->value.integer.value[0] & 0x3f;
right = value->value.integer.value[1] & 0x3f;
b = right - left;
if (b < 0) {
- v = 0x3f - left;
- b = (-b) | 0x40;
+ v = 0x3f - left;
+ b = (-b) | 0x40;
} else {
- v = 0x3f - right;
+ v = 0x3f - right;
}
/* Do we really know this will always be called with IRQs on? */
spin_lock_irq(&chip->reg_lock);
old = cx_read(AUD_VOL_CTL);
if (v != (old & 0x3f)) {
- cx_write(AUD_VOL_CTL, (old & ~0x3f) | v);
- changed = 1;
+ cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, (old & ~0x3f) | v);
+ changed = 1;
}
- if (cx_read(AUD_BAL_CTL) != b) {
- cx_write(AUD_BAL_CTL, b);
- changed = 1;
+ if ((cx_read(AUD_BAL_CTL) & 0x7f) != b) {
+ cx_write(AUD_BAL_CTL, b);
+ changed = 1;
}
spin_unlock_irq(&chip->reg_lock);
@@ -618,7 +651,7 @@ static const struct snd_kcontrol_new snd_cx88_volume = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ,
- .name = "Playback Volume",
+ .name = "Analog-TV Volume",
.info = snd_cx88_volume_info,
.get = snd_cx88_volume_get,
.put = snd_cx88_volume_put,
@@ -649,7 +682,17 @@ static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol,
vol = cx_read(AUD_VOL_CTL);
if (value->value.integer.value[0] != !(vol & bit)) {
vol ^= bit;
- cx_write(AUD_VOL_CTL, vol);
+ cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, vol);
+ /* Pass mute onto any WM8775 */
+ if ((core->board.audio_chip == V4L2_IDENT_WM8775) &&
+ ((1<<6) == bit)) {
+ struct v4l2_control client_ctl;
+
+ memset(&client_ctl, 0, sizeof(client_ctl));
+ client_ctl.value = 0 != (vol & bit);
+ client_ctl.id = V4L2_CID_AUDIO_MUTE;
+ call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
+ }
ret = 1;
}
spin_unlock_irq(&chip->reg_lock);
@@ -658,7 +701,7 @@ static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol,
static const struct snd_kcontrol_new snd_cx88_dac_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .name = "Playback Switch",
+ .name = "Audio-Out Switch",
.info = snd_ctl_boolean_mono_info,
.get = snd_cx88_switch_get,
.put = snd_cx88_switch_put,
@@ -667,13 +710,51 @@ static const struct snd_kcontrol_new snd_cx88_dac_switch = {
static const struct snd_kcontrol_new snd_cx88_source_switch = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .name = "Capture Switch",
+ .name = "Analog-TV Switch",
.info = snd_ctl_boolean_mono_info,
.get = snd_cx88_switch_get,
.put = snd_cx88_switch_put,
.private_value = (1<<6),
};
+static int snd_cx88_alc_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *value)
+{
+ snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
+ struct cx88_core *core = chip->core;
+ struct v4l2_control client_ctl;
+
+ memset(&client_ctl, 0, sizeof(client_ctl));
+ client_ctl.id = V4L2_CID_AUDIO_LOUDNESS;
+ call_hw(core, WM8775_GID, core, g_ctrl, &client_ctl);
+ value->value.integer.value[0] = client_ctl.value ? 1 : 0;
+
+ return 0;
+}
+
+static int snd_cx88_alc_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *value)
+{
+ snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
+ struct cx88_core *core = chip->core;
+ struct v4l2_control client_ctl;
+
+ memset(&client_ctl, 0, sizeof(client_ctl));
+ client_ctl.value = 0 != value->value.integer.value[0];
+ client_ctl.id = V4L2_CID_AUDIO_LOUDNESS;
+ call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
+
+ return 0;
+}
+
+static struct snd_kcontrol_new snd_cx88_alc_switch = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Line-In ALC Switch",
+ .info = snd_ctl_boolean_mono_info,
+ .get = snd_cx88_alc_get,
+ .put = snd_cx88_alc_put,
+};
+
/****************************************************************************
Basic Flow for Sound Devices
****************************************************************************/
@@ -724,7 +805,8 @@ static void snd_cx88_dev_free(struct snd_card * card)
static int devno;
static int __devinit snd_cx88_create(struct snd_card *card,
struct pci_dev *pci,
- snd_cx88_card_t **rchip)
+ snd_cx88_card_t **rchip,
+ struct cx88_core **core_ptr)
{
snd_cx88_card_t *chip;
struct cx88_core *core;
@@ -750,7 +832,7 @@ static int __devinit snd_cx88_create(struct snd_card *card,
if (!pci_dma_supported(pci,DMA_BIT_MASK(32))) {
dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
err = -EIO;
- cx88_core_put(core,pci);
+ cx88_core_put(core, pci);
return err;
}
@@ -786,6 +868,7 @@ static int __devinit snd_cx88_create(struct snd_card *card,
snd_card_set_dev(card, &pci->dev);
*rchip = chip;
+ *core_ptr = core;
return 0;
}
@@ -795,6 +878,7 @@ static int __devinit cx88_audio_initdev(struct pci_dev *pci,
{
struct snd_card *card;
snd_cx88_card_t *chip;
+ struct cx88_core *core;
int err;
if (devno >= SNDRV_CARDS)
@@ -812,7 +896,7 @@ static int __devinit cx88_audio_initdev(struct pci_dev *pci,
card->private_free = snd_cx88_dev_free;
- err = snd_cx88_create(card, pci, &chip);
+ err = snd_cx88_create(card, pci, &chip, &core);
if (err < 0)
goto error;
@@ -830,6 +914,10 @@ static int __devinit cx88_audio_initdev(struct pci_dev *pci,
if (err < 0)
goto error;
+ /* If there's a wm8775 then add a Line-In ALC switch */
+ if (core->board.audio_chip == V4L2_IDENT_WM8775)
+ snd_ctl_add(card, snd_ctl_new1(&snd_cx88_alc_switch, chip));
+
strcpy (card->driver, "CX88x");
sprintf(card->shortname, "Conexant CX%x", pci->device);
sprintf(card->longname, "%s at %#llx",
View
3 drivers/media/video/cx88/cx88-cards.c
@@ -970,7 +970,8 @@ static const struct cx88_board cx88_boards[] = {
.radio_type = UNSET,
.tuner_addr = ADDR_UNSET,
.radio_addr = ADDR_UNSET,
- .audio_chip = V4L2_IDENT_WM8775,
+ .audio_chip = V4L2_IDENT_WM8775,
+ .i2sinputcntl = 2,
.input = {{
.type = CX88_VMUX_DVB,
.vmux = 0,
View
8 drivers/media/video/cx88/cx88-tvaudio.c
@@ -786,8 +786,12 @@ void cx88_set_tvaudio(struct cx88_core *core)
break;
case WW_I2SADC:
set_audio_start(core, 0x01);
- /* Slave/Philips/Autobaud */
- cx_write(AUD_I2SINPUTCNTL, 0);
+ /*
+ * Slave/Philips/Autobaud
+ * NB on Nova-S bit1 NPhilipsSony appears to be inverted:
+ * 0= Sony, 1=Philips
+ */
+ cx_write(AUD_I2SINPUTCNTL, core->board.i2sinputcntl);
/* Switch to "I2S ADC mode" */
cx_write(AUD_I2SCNTL, 0x1);
set_audio_finish(core, EN_I2SIN_ENABLE);
View
52 drivers/media/video/cx88/cx88-video.c
@@ -40,6 +40,7 @@
#include "cx88.h"
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
+#include <media/wm8775.h>
MODULE_DESCRIPTION("v4l2 driver module for cx2388x based TV cards");
MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
@@ -989,6 +990,32 @@ int cx88_set_control(struct cx88_core *core, struct v4l2_control *ctl)
ctl->value = c->v.minimum;
if (ctl->value > c->v.maximum)
ctl->value = c->v.maximum;
+
+ /* Pass changes onto any WM8775 */
+ if (core->board.audio_chip == V4L2_IDENT_WM8775) {
+ struct v4l2_control client_ctl;
+ memset(&client_ctl, 0, sizeof(client_ctl));
+ client_ctl.id = ctl->id;
+
+ switch (ctl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ client_ctl.value = ctl->value;
+ break;
+ case V4L2_CID_AUDIO_VOLUME:
+ client_ctl.value = (ctl->value) ?
+ (0x90 + ctl->value) << 8 : 0;
+ break;
+ case V4L2_CID_AUDIO_BALANCE:
+ client_ctl.value = ctl->value << 9;
+ break;
+ default:
+ client_ctl.id = 0;
+ break;
+ }
+ if (client_ctl.id)
+ call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
+ }
+
mask=c->mask;
switch (ctl->id) {
case V4L2_CID_AUDIO_BALANCE:
@@ -1526,7 +1553,9 @@ static int radio_queryctrl (struct file *file, void *priv,
if (c->id < V4L2_CID_BASE ||
c->id >= V4L2_CID_LASTP1)
return -EINVAL;
- if (c->id == V4L2_CID_AUDIO_MUTE) {
+ if (c->id == V4L2_CID_AUDIO_MUTE ||
+ c->id == V4L2_CID_AUDIO_VOLUME ||
+ c->id == V4L2_CID_AUDIO_BALANCE) {
for (i = 0; i < CX8800_CTLS; i++) {
if (cx8800_ctls[i].v.id == c->id)
break;
@@ -1856,9 +1885,24 @@ static int __devinit cx8800_initdev(struct pci_dev *pci_dev,
/* load and configure helper modules */
- if (core->board.audio_chip == V4L2_IDENT_WM8775)
- v4l2_i2c_new_subdev(&core->v4l2_dev, &core->i2c_adap,
- "wm8775", 0x36 >> 1, NULL);
+ if (core->board.audio_chip == V4L2_IDENT_WM8775) {
+ struct i2c_board_info wm8775_info = {
+ .type = "wm8775",
+ .addr = 0x36 >> 1,
+ .platform_data = &core->wm8775_data,
+ };
+ struct v4l2_subdev *sd;
+
+ if (core->boardnr == CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1)
+ core->wm8775_data.is_nova_s = true;
+ else
+ core->wm8775_data.is_nova_s = false;
+
+ sd = v4l2_i2c_new_subdev_board(&core->v4l2_dev, &core->i2c_adap,
+ &wm8775_info, NULL);
+ if (sd != NULL)
+ sd->grp_id = WM8775_GID;
+ }
if (core->board.audio_chip == V4L2_IDENT_TVAUDIO) {
/* This probes for a tda9874 as is used on some
View
13 drivers/media/video/cx88/cx88.h
@@ -33,6 +33,7 @@
#include <media/cx2341x.h>
#include <media/videobuf-dvb.h>
#include <media/ir-kbd-i2c.h>
+#include <media/wm8775.h>
#include "btcx-risc.h"
#include "cx88-reg.h"
@@ -273,6 +274,9 @@ struct cx88_board {
enum cx88_board_type mpeg;
unsigned int audio_chip;
int num_frontends;
+
+ /* Used for I2S devices */
+ int i2sinputcntl;
};
struct cx88_subid {
@@ -379,6 +383,7 @@ struct cx88_core {
/* I2C remote data */
struct IR_i2c_init_data init_data;
+ struct wm8775_platform_data wm8775_data;
struct mutex lock;
/* various v4l controls */
@@ -398,17 +403,21 @@ static inline struct cx88_core *to_core(struct v4l2_device *v4l2_dev)
return container_of(v4l2_dev, struct cx88_core, v4l2_dev);
}
-#define call_all(core, o, f, args...) \
+#define WM8775_GID (1 << 0)
+
+#define call_hw(core, grpid, o, f, args...) \
do { \
if (!core->i2c_rc) { \
if (core->gate_ctrl) \
core->gate_ctrl(core, 1); \
- v4l2_device_call_all(&core->v4l2_dev, 0, o, f, ##args); \
+ v4l2_device_call_all(&core->v4l2_dev, grpid, o, f, ##args); \
if (core->gate_ctrl) \
core->gate_ctrl(core, 0); \
} \
} while (0)
+#define call_all(core, o, f, args...) call_hw(core, 0, o, f, ##args)
+
struct cx8800_dev;
struct cx8802_dev;
View
126 drivers/media/video/wm8775.c
@@ -35,6 +35,7 @@
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-ctrls.h>
+#include <media/wm8775.h>
MODULE_DESCRIPTION("wm8775 driver");
MODULE_AUTHOR("Ulf Eklund, Hans Verkuil");
@@ -50,10 +51,16 @@ enum {
TOT_REGS
};
+#define ALC_HOLD 0x85 /* R17: use zero cross detection, ALC hold time 42.6 ms */
+#define ALC_EN 0x100 /* R17: ALC enable */
+
struct wm8775_state {
struct v4l2_subdev sd;
struct v4l2_ctrl_handler hdl;
struct v4l2_ctrl *mute;
+ struct v4l2_ctrl *vol;
+ struct v4l2_ctrl *bal;
+ struct v4l2_ctrl *loud;
u8 input; /* Last selected input (0-0xf) */
};
@@ -85,6 +92,30 @@ static int wm8775_write(struct v4l2_subdev *sd, int reg, u16 val)
return -1;
}
+static void wm8775_set_audio(struct v4l2_subdev *sd, int quietly)
+{
+ struct wm8775_state *state = to_state(sd);
+ u8 vol_l, vol_r;
+ int muted = 0 != state->mute->val;
+ u16 volume = (u16)state->vol->val;
+ u16 balance = (u16)state->bal->val;
+
+ /* normalize ( 65535 to 0 -> 255 to 0 (+24dB to -103dB) ) */
+ vol_l = (min(65536 - balance, 32768) * volume) >> 23;
+ vol_r = (min(balance, (u16)32768) * volume) >> 23;
+
+ /* Mute */
+ if (muted || quietly)
+ wm8775_write(sd, R21, 0x0c0 | state->input);
+
+ wm8775_write(sd, R14, vol_l | 0x100); /* 0x100= Left channel ADC zero cross enable */
+ wm8775_write(sd, R15, vol_r | 0x100); /* 0x100= Right channel ADC zero cross enable */
+
+ /* Un-mute */
+ if (!muted)
+ wm8775_write(sd, R21, state->input);
+}
+
static int wm8775_s_routing(struct v4l2_subdev *sd,
u32 input, u32 output, u32 config)
{
@@ -102,25 +133,26 @@ static int wm8775_s_routing(struct v4l2_subdev *sd,
state->input = input;
if (!v4l2_ctrl_g_ctrl(state->mute))
return 0;
- wm8775_write(sd, R21, 0x0c0);
- wm8775_write(sd, R14, 0x1d4);
- wm8775_write(sd, R15, 0x1d4);
- wm8775_write(sd, R21, 0x100 + state->input);
+ if (!v4l2_ctrl_g_ctrl(state->vol))
+ return 0;
+ if (!v4l2_ctrl_g_ctrl(state->bal))
+ return 0;
+ wm8775_set_audio(sd, 1);
return 0;
}
static int wm8775_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_sd(ctrl);
- struct wm8775_state *state = to_state(sd);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
- wm8775_write(sd, R21, 0x0c0);
- wm8775_write(sd, R14, 0x1d4);
- wm8775_write(sd, R15, 0x1d4);
- if (!ctrl->val)
- wm8775_write(sd, R21, 0x100 + state->input);
+ case V4L2_CID_AUDIO_VOLUME:
+ case V4L2_CID_AUDIO_BALANCE:
+ wm8775_set_audio(sd, 0);
+ return 0;
+ case V4L2_CID_AUDIO_LOUDNESS:
+ wm8775_write(sd, R17, (ctrl->val ? ALC_EN : 0) | ALC_HOLD);
return 0;
}
return -EINVAL;
@@ -144,16 +176,7 @@ static int wm8775_log_status(struct v4l2_subdev *sd)
static int wm8775_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq)
{
- struct wm8775_state *state = to_state(sd);
-
- /* If I remove this, then it can happen that I have no
- sound the first time I tune from static to a valid channel.
- It's difficult to reproduce and is almost certainly related
- to the zero cross detect circuit. */
- wm8775_write(sd, R21, 0x0c0);
- wm8775_write(sd, R14, 0x1d4);
- wm8775_write(sd, R15, 0x1d4);
- wm8775_write(sd, R21, 0x100 + state->input);
+ wm8775_set_audio(sd, 0);
return 0;
}
@@ -203,6 +226,13 @@ static int wm8775_probe(struct i2c_client *client,
{
struct wm8775_state *state;
struct v4l2_subdev *sd;
+ int err;
+ bool is_nova_s = false;
+
+ if (client->dev.platform_data) {
+ struct wm8775_platform_data *data = client->dev.platform_data;
+ is_nova_s = data->is_nova_s;
+ }
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -218,13 +248,18 @@ static int wm8775_probe(struct i2c_client *client,
v4l2_i2c_subdev_init(sd, client, &wm8775_ops);
state->input = 2;
- v4l2_ctrl_handler_init(&state->hdl, 1);
+ v4l2_ctrl_handler_init(&state->hdl, 4);
state->mute = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops,
V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
+ state->vol = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops,
+ V4L2_CID_AUDIO_VOLUME, 0, 65535, (65535+99)/100, 0xCF00); /* 0dB*/
+ state->bal = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops,
+ V4L2_CID_AUDIO_BALANCE, 0, 65535, (65535+99)/100, 32768);
+ state->loud = v4l2_ctrl_new_std(&state->hdl, &wm8775_ctrl_ops,
+ V4L2_CID_AUDIO_LOUDNESS, 0, 1, 1, 1);
sd->ctrl_handler = &state->hdl;
- if (state->hdl.error) {
- int err = state->hdl.error;
-
+ err = state->hdl.error;
+ if (err) {
v4l2_ctrl_handler_free(&state->hdl);
kfree(state);
return err;
@@ -236,29 +271,44 @@ static int wm8775_probe(struct i2c_client *client,
wm8775_write(sd, R23, 0x000);
/* Disable zero cross detect timeout */
wm8775_write(sd, R7, 0x000);
- /* Left justified, 24-bit mode */
+ /* HPF enable, left justified, 24-bit (Philips) mode */
wm8775_write(sd, R11, 0x021);
/* Master mode, clock ratio 256fs */
wm8775_write(sd, R12, 0x102);
/* Powered up */
wm8775_write(sd, R13, 0x000);
- /* ADC gain +2.5dB, enable zero cross */
- wm8775_write(sd, R14, 0x1d4);
- /* ADC gain +2.5dB, enable zero cross */
- wm8775_write(sd, R15, 0x1d4);
- /* ALC Stereo, ALC target level -1dB FS max gain +8dB */
- wm8775_write(sd, R16, 0x1bf);
- /* Enable gain control, use zero cross detection,
- ALC hold time 42.6 ms */
- wm8775_write(sd, R17, 0x185);
+
+ if (!is_nova_s) {
+ /* ADC gain +2.5dB, enable zero cross */
+ wm8775_write(sd, R14, 0x1d4);
+ /* ADC gain +2.5dB, enable zero cross */
+ wm8775_write(sd, R15, 0x1d4);
+ /* ALC Stereo, ALC target level -1dB FS max gain +8dB */
+ wm8775_write(sd, R16, 0x1bf);
+ /* Enable gain control, use zero cross detection,
+ ALC hold time 42.6 ms */
+ wm8775_write(sd, R17, 0x185);
+ } else {
+ /* ALC stereo, ALC target level -5dB FS, ALC max gain +8dB */
+ wm8775_write(sd, R16, 0x1bb);
+ /* Set ALC mode and hold time */
+ wm8775_write(sd, R17, (state->loud->val ? ALC_EN : 0) | ALC_HOLD);
+ }
/* ALC gain ramp up delay 34 s, ALC gain ramp down delay 33 ms */
wm8775_write(sd, R18, 0x0a2);
/* Enable noise gate, threshold -72dBfs */
wm8775_write(sd, R19, 0x005);
- /* Transient window 4ms, lower PGA gain limit -1dB */
- wm8775_write(sd, R20, 0x07a);
- /* LRBOTH = 1, use input 2. */
- wm8775_write(sd, R21, 0x102);
+ if (!is_nova_s) {
+ /* Transient window 4ms, lower PGA gain limit -1dB */
+ wm8775_write(sd, R20, 0x07a);
+ /* LRBOTH = 1, use input 2. */
+ wm8775_write(sd, R21, 0x102);
+ } else {
+ /* Transient window 4ms, ALC min gain -5dB */
+ wm8775_write(sd, R20, 0x0fb);
+
+ wm8775_set_audio(sd, 1); /* set volume/mute/mux */
+ }
return 0;
}
View
9 include/media/wm8775.h
@@ -32,4 +32,13 @@
#define WM8775_AIN3 4
#define WM8775_AIN4 8
+
+struct wm8775_platform_data {
+ /*
+ * FIXME: Instead, we should parametrize the params
+ * that need different settings between ivtv, pvrusb2, and Nova-S
+ */
+ bool is_nova_s;
+};
+
#endif

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