Commit eac06a10 authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
Browse files

[ALSA] Add dB scale information to ad1848 driver 



Added the dB scale information to ad1848 driver.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@suse.cz>
parent 0e7febf1

include/sound/ad1848.h

+16 −6
Original line number Diff line number Diff line
@@ -179,14 +179,13 @@ enum { AD1848_MIX_SINGLE, AD1848_MIX_DOUBLE, AD1848_MIX_CAPTURE }; 
#define AD1848_MIXVAL_DOUBLE(left_reg, right_reg, shift_left, shift_right, mask, invert) \

	((left_reg) | ((right_reg) << 8) | ((shift_left) << 16) | ((shift_right) << 19) | ((mask) << 24) | ((invert) << 22))



int snd_ad1848_add_ctl(struct snd_ad1848 *chip, const char *name, int index, int type, unsigned long value);



/* for ease of use */

struct ad1848_mix_elem {

	const char *name;

	int index;

	int type;

	unsigned long private_value;

	unsigned int *tlv;

};



#define AD1848_SINGLE(xname, xindex, reg, shift, mask, invert) \
@@ -195,15 +194,26 @@ struct ad1848_mix_elem { 
  .type = AD1848_MIX_SINGLE, \

  .private_value = AD1848_MIXVAL_SINGLE(reg, shift, mask, invert) }



#define AD1848_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \

{ .name = xname, \

  .index = xindex, \

  .type = AD1848_MIX_SINGLE, \

  .private_value = AD1848_MIXVAL_SINGLE(reg, shift, mask, invert), \

  .tlv = xtlv }



#define AD1848_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \

{ .name = xname, \

  .index = xindex, \

  .type = AD1848_MIX_DOUBLE, \

  .private_value = AD1848_MIXVAL_DOUBLE(left_reg, right_reg, shift_left, shift_right, mask, invert) }



static inline int snd_ad1848_add_ctl_elem(struct snd_ad1848 *chip, const struct ad1848_mix_elem *c)

{

	return snd_ad1848_add_ctl(chip, c->name, c->index, c->type, c->private_value);

}

#define AD1848_DOUBLE_TLV(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert, xtlv) \

{ .name = xname, \

  .index = xindex, \

  .type = AD1848_MIX_DOUBLE, \

  .private_value = AD1848_MIXVAL_DOUBLE(left_reg, right_reg, shift_left, shift_right, mask, invert), \

  .tlv = xtlv }



int snd_ad1848_add_ctl_elem(struct snd_ad1848 *chip, const struct ad1848_mix_elem *c);



#endif /* __SOUND_AD1848_H */

sound/isa/ad1848/ad1848_lib.c

+34 −15
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
#include <sound/core.h>

#include <sound/ad1848.h>

#include <sound/control.h>

#include <sound/tlv.h>

#include <sound/pcm_params.h>



#include <asm/io.h>
@@ -118,6 +119,8 @@ void snd_ad1848_out(struct snd_ad1848 *chip, 
#endif

}



EXPORT_SYMBOL(snd_ad1848_out);



static void snd_ad1848_dout(struct snd_ad1848 *chip,

			    unsigned char reg, unsigned char value)

{
@@ -941,6 +944,8 @@ int snd_ad1848_create(struct snd_card *card, 
	return 0;

}



EXPORT_SYMBOL(snd_ad1848_create);



static struct snd_pcm_ops snd_ad1848_playback_ops = {

	.open =		snd_ad1848_playback_open,

	.close =	snd_ad1848_playback_close,
@@ -988,12 +993,16 @@ int snd_ad1848_pcm(struct snd_ad1848 *chip, int device, struct snd_pcm **rpcm) 
	return 0;

}



EXPORT_SYMBOL(snd_ad1848_pcm);



const struct snd_pcm_ops *snd_ad1848_get_pcm_ops(int direction)

{

	return direction == SNDRV_PCM_STREAM_PLAYBACK ?

		&snd_ad1848_playback_ops : &snd_ad1848_capture_ops;

}



EXPORT_SYMBOL(snd_ad1848_get_pcm_ops);



/*

 *  MIXER part

 */
@@ -1171,7 +1180,8 @@ static int snd_ad1848_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_e 


/*

 */

int snd_ad1848_add_ctl(struct snd_ad1848 *chip, const char *name, int index, int type, unsigned long value)

int snd_ad1848_add_ctl_elem(struct snd_ad1848 *chip,

			    const struct ad1848_mix_elem *c)

{

	static struct snd_kcontrol_new newctls[] = {

		[AD1848_MIX_SINGLE] = {
@@ -1196,32 +1206,46 @@ int snd_ad1848_add_ctl(struct snd_ad1848 *chip, const char *name, int index, int 
	struct snd_kcontrol *ctl;

	int err;



	ctl = snd_ctl_new1(&newctls[type], chip);

	ctl = snd_ctl_new1(&newctls[c->type], chip);

	if (! ctl)

		return -ENOMEM;

	strlcpy(ctl->id.name, name, sizeof(ctl->id.name));

	ctl->id.index = index;

	ctl->private_value = value;

	strlcpy(ctl->id.name, c->name, sizeof(ctl->id.name));

	ctl->id.index = c->index;

	ctl->private_value = c->private_value;

	if (c->tlv) {

		ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;

		ctl->tlv.p = c->tlv;

	}

	if ((err = snd_ctl_add(chip->card, ctl)) < 0)

		return err;

	return 0;

}



EXPORT_SYMBOL(snd_ad1848_add_ctl_elem);



static DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);

static DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);

static DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);



static struct ad1848_mix_elem snd_ad1848_controls[] = {

AD1848_DOUBLE("PCM Playback Switch", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 7, 7, 1, 1),

AD1848_DOUBLE("PCM Playback Volume", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1),

AD1848_DOUBLE_TLV("PCM Playback Volume", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1,

		  db_scale_6bit),

AD1848_DOUBLE("Aux Playback Switch", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 7, 7, 1, 1),

AD1848_DOUBLE("Aux Playback Volume", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 0, 0, 31, 1),

AD1848_DOUBLE_TLV("Aux Playback Volume", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 0, 0, 31, 1,

		  db_scale_5bit_12db_max),

AD1848_DOUBLE("Aux Playback Switch", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 7, 7, 1, 1),

AD1848_DOUBLE("Aux Playback Volume", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 0, 0, 31, 1),

AD1848_DOUBLE("Capture Volume", 0, AD1848_LEFT_INPUT, AD1848_RIGHT_INPUT, 0, 0, 15, 0),

AD1848_DOUBLE_TLV("Aux Playback Volume", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 0, 0, 31, 1,

		  db_scale_5bit_12db_max),

AD1848_DOUBLE_TLV("Capture Volume", 0, AD1848_LEFT_INPUT, AD1848_RIGHT_INPUT, 0, 0, 15, 0,

		  db_scale_rec_gain),

{

	.name = "Capture Source",

	.type = AD1848_MIX_CAPTURE,

},

AD1848_SINGLE("Loopback Capture Switch", 0, AD1848_LOOPBACK, 0, 1, 0),

AD1848_SINGLE("Loopback Capture Volume", 0, AD1848_LOOPBACK, 1, 63, 0)

AD1848_SINGLE_TLV("Loopback Capture Volume", 0, AD1848_LOOPBACK, 1, 63, 0,

		  db_scale_6bit),

};

                                        

int snd_ad1848_mixer(struct snd_ad1848 *chip)
@@ -1245,12 +1269,7 @@ int snd_ad1848_mixer(struct snd_ad1848 *chip) 
	return 0;

}



EXPORT_SYMBOL(snd_ad1848_out);

EXPORT_SYMBOL(snd_ad1848_create);

EXPORT_SYMBOL(snd_ad1848_pcm);

EXPORT_SYMBOL(snd_ad1848_get_pcm_ops);

EXPORT_SYMBOL(snd_ad1848_mixer);

EXPORT_SYMBOL(snd_ad1848_add_ctl);



/*

 *  INIT part