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Commit fcb97573 authored by lawrence rust's avatar lawrence rust Committed by Mauro Carvalho Chehab
Browse files

[media] Nova-S-Plus audio line input 



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: Fix CodingStyle issues]
Signed-off-by: default avatarLawrence Rust <lawrence@softsystem.co.uk>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent cb0ed222

drivers/media/video/cx88/cx88-alsa.c

+87 −12
Original line number Diff line number Diff line
@@ -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"
@@ -586,6 +587,27 @@ static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol, 
	int left, right, v, b;

	int changed = 0;

	u32 old;

	struct v4l2_control client_ctl;



	/* Pass volume & balance onto any WM8775 */

	if (value->value.integer.value[0] >= value->value.integer.value[1]) {

		v = value->value.integer.value[0] << 10;

		b = value->value.integer.value[0] ?

			(0x8000 * value->value.integer.value[1]) / value->value.integer.value[0] :

			0x8000;

	} else {

		v = value->value.integer.value[1] << 10;

		b = value->value.integer.value[1] ?

		0xffff - (0x8000 * value->value.integer.value[0]) / value->value.integer.value[1] :

		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);



	left = value->value.integer.value[0] & 0x3f;

	right = value->value.integer.value[1] & 0x3f;
@@ -600,10 +622,10 @@ static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol, 
	spin_lock_irq(&chip->reg_lock);

	old = cx_read(AUD_VOL_CTL);

	if (v != (old & 0x3f)) {

	    cx_write(AUD_VOL_CTL, (old & ~0x3f) | v);

		cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, (old & ~0x3f) | v);

		changed = 1;

	}

	if (cx_read(AUD_BAL_CTL) != b) {

	if ((cx_read(AUD_BAL_CTL) & 0x7f) != b) {

		cx_write(AUD_BAL_CTL, b);

		changed = 1;

	}
@@ -618,7 +640,7 @@ 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 +671,14 @@ 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 ((1<<6) == bit) {

			struct v4l2_control 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 +687,7 @@ 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 +696,49 @@ 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;



	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;



	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

 ****************************************************************************/
@@ -795,6 +860,7 @@ static int __devinit cx88_audio_initdev(struct pci_dev *pci, 
{

	struct snd_card  *card;

	snd_cx88_card_t  *chip;

	struct v4l2_subdev *sd;

	int              err;



	if (devno >= SNDRV_CARDS)
@@ -830,6 +896,15 @@ 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 */

	list_for_each_entry(sd, &chip->core->v4l2_dev.subdevs, list) {

		if (WM8775_GID == sd->grp_id) {

			snd_ctl_add(card, snd_ctl_new1(&snd_cx88_alc_switch,

						       chip));

			break;

		}

	}



	strcpy (card->driver, "CX88x");

	sprintf(card->shortname, "Conexant CX%x", pci->device);

	sprintf(card->longname, "%s at %#llx",

drivers/media/video/cx88/cx88-cards.c

+7 −0
Original line number Diff line number Diff line
@@ -970,15 +970,22 @@ static const struct cx88_board cx88_boards[] = { 
		.radio_type	= UNSET,

		.tuner_addr	= ADDR_UNSET,

		.radio_addr	= ADDR_UNSET,

		.audio_chip = V4L2_IDENT_WM8775,

		.input		= {{

			.type	= CX88_VMUX_DVB,

			.vmux	= 0,

			/* 2: Line-In */

			.audioroute = 2,

		},{

			.type	= CX88_VMUX_COMPOSITE1,

			.vmux	= 1,

			/* 2: Line-In */

			.audioroute = 2,

		},{

			.type	= CX88_VMUX_SVIDEO,

			.vmux	= 2,

			/* 2: Line-In */

			.audioroute = 2,

		}},

		.mpeg           = CX88_MPEG_DVB,

	},

drivers/media/video/cx88/cx88-video.c

+26 −1
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ 
#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]");
@@ -977,6 +978,7 @@ int cx88_set_control(struct cx88_core *core, struct v4l2_control *ctl) 
	const struct cx88_ctrl *c = NULL;

	u32 value,mask;

	int i;

	struct v4l2_control client_ctl;



	for (i = 0; i < CX8800_CTLS; i++) {

		if (cx8800_ctls[i].v.id == ctl->id) {
@@ -990,6 +992,27 @@ 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 */

	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:
@@ -1536,7 +1559,9 @@ 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;

drivers/media/video/cx88/cx88.h

+4 −2
Original line number Diff line number Diff line
@@ -398,17 +398,19 @@ 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 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;

drivers/media/video/wm8775.c

+65 −39
Original line number Diff line number Diff line
@@ -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 +226,7 @@ static int wm8775_probe(struct i2c_client *client, 
{

	struct wm8775_state *state;

	struct v4l2_subdev *sd;

	int err;



	/* Check if the adapter supports the needed features */

	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -216,15 +240,21 @@ static int wm8775_probe(struct i2c_client *client, 
		return -ENOMEM;

	sd = &state->sd;

	v4l2_i2c_subdev_init(sd, client, &wm8775_ops);

	sd->grp_id = WM8775_GID; /* subdev group id */

	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 +266,25 @@ 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 */

	wm8775_write(sd, R11, 0x021);

	/* HPF enable, I2S mode, 24-bit */

	wm8775_write(sd, R11, 0x022);

	/* 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);

	/* 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);

	/* Transient window 4ms, ALC min gain -5dB  */

	wm8775_write(sd, R20, 0x0fb);



	wm8775_set_audio(sd, 1);      /* set volume/mute/mux */



	return 0;

}