[linux-block.git] / sound / i2c / tea6330t.c

/*
 *  Routines for control of the TEA6330T circuit via i2c bus
 *  Sound fader control circuit for car radios by Philips Semiconductors
 *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <sound/driver.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/tea6330t.h>

MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("Routines for control of the TEA6330T circuit via i2c bus");
MODULE_LICENSE("GPL");

#define TEA6330T_ADDR			(0x80>>1) /* fixed address */

#define TEA6330T_SADDR_VOLUME_LEFT	0x00	/* volume left */
#define TEA6330T_SADDR_VOLUME_RIGHT	0x01	/* volume right */
#define TEA6330T_SADDR_BASS		0x02	/* bass control */
#define TEA6330T_SADDR_TREBLE		0x03	/* treble control */
#define TEA6330T_SADDR_FADER		0x04	/* fader control */
#define   TEA6330T_MFN			0x20	/* mute control for selected channels */
#define   TEA6330T_FCH			0x10	/* select fader channels - front or rear */
#define TEA6330T_SADDR_AUDIO_SWITCH	0x05	/* audio switch */
#define   TEA6330T_GMU			0x80	/* mute control, general mute */
#define   TEA6330T_EQN			0x40	/* equalizer switchover (0=equalizer-on) */

typedef struct {
	snd_i2c_device_t *device;
	snd_i2c_bus_t *bus;
	int equalizer;
	int fader;
	unsigned char regs[8];
	unsigned char mleft, mright;
	unsigned char bass, treble;
	unsigned char max_bass, max_treble;
} tea6330t_t;

int snd_tea6330t_detect(snd_i2c_bus_t *bus, int equalizer)
{
	int res;

	snd_i2c_lock(bus);
	res = snd_i2c_probeaddr(bus, TEA6330T_ADDR);
	snd_i2c_unlock(bus);
	return res;
}

#if 0
static void snd_tea6330t_set(tea6330t_t *tea,
			     unsigned char addr, unsigned char value)
{
#if 0
	printk(KERN_DEBUG "set - 0x%x/0x%x\n", addr, value);
#endif
	snd_i2c_write(tea->bus, TEA6330T_ADDR, addr, value, 1);
}
#endif

#define TEA6330T_MASTER_VOLUME(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_tea6330t_info_master_volume, \
  .get = snd_tea6330t_get_master_volume, .put = snd_tea6330t_put_master_volume }

static int snd_tea6330t_info_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 43;
	return 0;
}

static int snd_tea6330t_get_master_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
	
	snd_i2c_lock(tea->bus);
	ucontrol->value.integer.value[0] = tea->mleft - 0x14;
	ucontrol->value.integer.value[1] = tea->mright - 0x14;
	snd_i2c_unlock(tea->bus);
	return 0;
}

static int snd_tea6330t_put_master_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
	int change, count, err;
	unsigned char bytes[3];
	unsigned char val1, val2;
	
	val1 = (ucontrol->value.integer.value[0] % 44) + 0x14;
	val2 = (ucontrol->value.integer.value[1] % 44) + 0x14;
	snd_i2c_lock(tea->bus);
	change = val1 != tea->mleft || val2 != tea->mright;
	tea->mleft = val1;
	tea->mright = val2;
	count = 0;
	if (tea->regs[TEA6330T_SADDR_VOLUME_LEFT] != 0) {
		bytes[count++] = TEA6330T_SADDR_VOLUME_LEFT;
		bytes[count++] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] = tea->mleft;
	}
	if (tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] != 0) {
		if (count == 0)
			bytes[count++] = TEA6330T_SADDR_VOLUME_RIGHT;
		bytes[count++] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] = tea->mright;
	}
	if (count > 0) {
		if ((err = snd_i2c_sendbytes(tea->device, bytes, count)) < 0)
			change = err;
	}
	snd_i2c_unlock(tea->bus);
	return change;
}

#define TEA6330T_MASTER_SWITCH(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_tea6330t_info_master_switch, \
  .get = snd_tea6330t_get_master_switch, .put = snd_tea6330t_put_master_switch }

static int snd_tea6330t_info_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 1;
	return 0;
}

static int snd_tea6330t_get_master_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
	
	snd_i2c_lock(tea->bus);
	ucontrol->value.integer.value[0] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] == 0 ? 0 : 1;
	ucontrol->value.integer.value[1] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] == 0 ? 0 : 1;
	snd_i2c_unlock(tea->bus);
	return 0;
}

static int snd_tea6330t_put_master_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
	int change, err;
	unsigned char bytes[3];
	unsigned char oval1, oval2, val1, val2;
	
	val1 = ucontrol->value.integer.value[0] & 1;
	val2 = ucontrol->value.integer.value[1] & 1;
	snd_i2c_lock(tea->bus);
	oval1 = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] == 0 ? 0 : 1;
	oval2 = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] == 0 ? 0 : 1;
	change = val1 != oval1 || val2 != oval2;
	tea->regs[TEA6330T_SADDR_VOLUME_LEFT] = val1 ? tea->mleft : 0;
	tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] = val2 ? tea->mright : 0;
	bytes[0] = TEA6330T_SADDR_VOLUME_LEFT;
	bytes[1] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT];
	bytes[2] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT];
	if ((err = snd_i2c_sendbytes(tea->device, bytes, 3)) < 0)
		change = err;
	snd_i2c_unlock(tea->bus);
	return change;
}

#define TEA6330T_BASS(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_tea6330t_info_bass, \
  .get = snd_tea6330t_get_bass, .put = snd_tea6330t_put_bass }

static int snd_tea6330t_info_bass(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = tea->max_bass;
	return 0;
}

static int snd_tea6330t_get_bass(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
	
	ucontrol->value.integer.value[0] = tea->bass;
	return 0;
}

static int snd_tea6330t_put_bass(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
	int change, err;
	unsigned char bytes[2];
	unsigned char val1;
	
	val1 = ucontrol->value.integer.value[0] % (tea->max_bass + 1);
	snd_i2c_lock(tea->bus);
	tea->bass = val1;
	val1 += tea->equalizer ? 7 : 3;
	change = tea->regs[TEA6330T_SADDR_BASS] != val1;
	bytes[0] = TEA6330T_SADDR_BASS;
	bytes[1] = tea->regs[TEA6330T_SADDR_BASS] = val1;
	if ((err = snd_i2c_sendbytes(tea->device, bytes, 2)) < 0)
		change = err;
	snd_i2c_unlock(tea->bus);
	return change;
}

#define TEA6330T_TREBLE(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_tea6330t_info_treble, \
  .get = snd_tea6330t_get_treble, .put = snd_tea6330t_put_treble }

static int snd_tea6330t_info_treble(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = tea->max_treble;
	return 0;
}

static int snd_tea6330t_get_treble(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
	
	ucontrol->value.integer.value[0] = tea->treble;
	return 0;
}

static int snd_tea6330t_put_treble(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
	int change, err;
	unsigned char bytes[2];
	unsigned char val1;
	
	val1 = ucontrol->value.integer.value[0] % (tea->max_treble + 1);
	snd_i2c_lock(tea->bus);
	tea->treble = val1;
	val1 += 3;
	change = tea->regs[TEA6330T_SADDR_TREBLE] != val1;
	bytes[0] = TEA6330T_SADDR_TREBLE;
	bytes[1] = tea->regs[TEA6330T_SADDR_TREBLE] = val1;
	if ((err = snd_i2c_sendbytes(tea->device, bytes, 2)) < 0)
		change = err;
	snd_i2c_unlock(tea->bus);
	return change;
}

static snd_kcontrol_new_t snd_tea6330t_controls[] = {
TEA6330T_MASTER_SWITCH("Master Playback Switch", 0),
TEA6330T_MASTER_VOLUME("Master Playback Volume", 0),
TEA6330T_BASS("Tone Control - Bass", 0),
TEA6330T_TREBLE("Tone Control - Treble", 0)
};

static void snd_tea6330_free(snd_i2c_device_t *device)
{
	kfree(device->private_data);
}
                                        
int snd_tea6330t_update_mixer(snd_card_t * card,
			      snd_i2c_bus_t *bus,
			      int equalizer, int fader)
{
	snd_i2c_device_t *device;
	tea6330t_t *tea;
	snd_kcontrol_new_t *knew;
	unsigned int idx;
	int err = -ENOMEM;
	u8 default_treble, default_bass;
	unsigned char bytes[7];

	tea = kzalloc(sizeof(*tea), GFP_KERNEL);
	if (tea == NULL)
		return -ENOMEM;
	if ((err = snd_i2c_device_create(bus, "TEA6330T", TEA6330T_ADDR, &device)) < 0) {
		kfree(tea);
		return err;
	}
	tea->device = device;
	tea->bus = bus;
	tea->equalizer = equalizer;
	tea->fader = fader;
	device->private_data = tea;
	device->private_free = snd_tea6330_free;

	snd_i2c_lock(bus);

	/* turn fader off and handle equalizer */
	tea->regs[TEA6330T_SADDR_FADER] = 0x3f;
	tea->regs[TEA6330T_SADDR_AUDIO_SWITCH] = equalizer ? 0 : TEA6330T_EQN;
	/* initialize mixer */
	if (!tea->equalizer) {
		tea->max_bass = 9;
		tea->max_treble = 8;
		default_bass = 3 + 4;
		tea->bass = 4;
		default_treble = 3 + 4;
		tea->treble = 4;
	} else {
		tea->max_bass = 5;
		tea->max_treble = 0;
		default_bass = 7 + 4;
		tea->bass = 4;
		default_treble = 3;
		tea->treble = 0;
	}
	tea->mleft = tea->mright = 0x14;
	tea->regs[TEA6330T_SADDR_BASS] = default_bass;
	tea->regs[TEA6330T_SADDR_TREBLE] = default_treble;

	/* compose I2C message and put the hardware to initial state */
	bytes[0] = TEA6330T_SADDR_VOLUME_LEFT;
	for (idx = 0; idx < 6; idx++)
		bytes[idx+1] = tea->regs[idx];
	if ((err = snd_i2c_sendbytes(device, bytes, 7)) < 0)
		goto __error;

	strcat(card->mixername, ",TEA6330T");
	if ((err = snd_component_add(card, "TEA6330T")) < 0)
		goto __error;

	for (idx = 0; idx < ARRAY_SIZE(snd_tea6330t_controls); idx++) {
		knew = &snd_tea6330t_controls[idx];
		if (tea->treble == 0 && !strcmp(knew->name, "Tone Control - Treble"))
			continue;
		if ((err = snd_ctl_add(card, snd_ctl_new1(knew, tea))) < 0)
			goto __error;
	}

	snd_i2c_unlock(bus);
	return 0;
	
      __error:
      	snd_i2c_unlock(bus);
      	snd_i2c_device_free(device);
      	return err;
}

EXPORT_SYMBOL(snd_tea6330t_detect);
EXPORT_SYMBOL(snd_tea6330t_update_mixer);

/*
 *  INIT part
 */

static int __init alsa_tea6330t_init(void)
{
	return 0;
}

static void __exit alsa_tea6330t_exit(void)
{
}

module_init(alsa_tea6330t_init)
module_exit(alsa_tea6330t_exit)
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Routines for control of the TEA6330T circuit via i2c bus
	3	* Sound fader control circuit for car radios by Philips Semiconductors
	4	* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
	5	*
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*
	21	*/
	22
	23	#include <sound/driver.h>
	24	#include <linux/init.h>
	25	#include <linux/slab.h>
	26	#include <sound/core.h>
c8714ba1	27	#include <sound/control.h>
1da177e4 LT	28	#include <sound/tea6330t.h>
	29
	30	MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
	31	MODULE_DESCRIPTION("Routines for control of the TEA6330T circuit via i2c bus");
	32	MODULE_LICENSE("GPL");
	33
	34	#define TEA6330T_ADDR (0x80>>1) /* fixed address */
	35
	36	#define TEA6330T_SADDR_VOLUME_LEFT 0x00 /* volume left */
	37	#define TEA6330T_SADDR_VOLUME_RIGHT 0x01 /* volume right */
	38	#define TEA6330T_SADDR_BASS 0x02 /* bass control */
	39	#define TEA6330T_SADDR_TREBLE 0x03 /* treble control */
	40	#define TEA6330T_SADDR_FADER 0x04 /* fader control */
	41	#define TEA6330T_MFN 0x20 /* mute control for selected channels */
	42	#define TEA6330T_FCH 0x10 /* select fader channels - front or rear */
	43	#define TEA6330T_SADDR_AUDIO_SWITCH 0x05 /* audio switch */
	44	#define TEA6330T_GMU 0x80 /* mute control, general mute */
	45	#define TEA6330T_EQN 0x40 /* equalizer switchover (0=equalizer-on) */
	46
c8714ba1 TI	47	typedef struct {
	48	snd_i2c_device_t *device;
	49	snd_i2c_bus_t *bus;
	50	int equalizer;
	51	int fader;
	52	unsigned char regs[8];
	53	unsigned char mleft, mright;
	54	unsigned char bass, treble;
	55	unsigned char max_bass, max_treble;
	56	} tea6330t_t;
	57
1da177e4 LT	58	int snd_tea6330t_detect(snd_i2c_bus_t *bus, int equalizer)
	59	{
	60	int res;
	61
	62	snd_i2c_lock(bus);
	63	res = snd_i2c_probeaddr(bus, TEA6330T_ADDR);
	64	snd_i2c_unlock(bus);
	65	return res;
	66	}
	67
	68	#if 0
	69	static void snd_tea6330t_set(tea6330t_t *tea,
	70	unsigned char addr, unsigned char value)
	71	{
	72	#if 0
99b359ba	73	printk(KERN_DEBUG "set - 0x%x/0x%x\n", addr, value);
1da177e4 LT	74	#endif
	75	snd_i2c_write(tea->bus, TEA6330T_ADDR, addr, value, 1);
	76	}
	77	#endif
	78
	79	#define TEA6330T_MASTER_VOLUME(xname, xindex) \
	80	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
	81	.info = snd_tea6330t_info_master_volume, \
	82	.get = snd_tea6330t_get_master_volume, .put = snd_tea6330t_put_master_volume }
	83
	84	static int snd_tea6330t_info_master_volume(snd_kcontrol_t kcontrol, snd_ctl_elem_info_t uinfo)
	85	{
	86	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	87	uinfo->count = 2;
	88	uinfo->value.integer.min = 0;
	89	uinfo->value.integer.max = 43;
	90	return 0;
	91	}
	92
	93	static int snd_tea6330t_get_master_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
	94	{
	95	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
	96
	97	snd_i2c_lock(tea->bus);
	98	ucontrol->value.integer.value[0] = tea->mleft - 0x14;
	99	ucontrol->value.integer.value[1] = tea->mright - 0x14;
	100	snd_i2c_unlock(tea->bus);
	101	return 0;
	102	}
	103
	104	static int snd_tea6330t_put_master_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
	105	{
	106	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
	107	int change, count, err;
	108	unsigned char bytes[3];
	109	unsigned char val1, val2;
	110
	111	val1 = (ucontrol->value.integer.value[0] % 44) + 0x14;
	112	val2 = (ucontrol->value.integer.value[1] % 44) + 0x14;
	113	snd_i2c_lock(tea->bus);
	114	change = val1 != tea->mleft \|\| val2 != tea->mright;
	115	tea->mleft = val1;
	116	tea->mright = val2;
	117	count = 0;
	118	if (tea->regs[TEA6330T_SADDR_VOLUME_LEFT] != 0) {
	119	bytes[count++] = TEA6330T_SADDR_VOLUME_LEFT;
	120	bytes[count++] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] = tea->mleft;
	121	}
	122	if (tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] != 0) {
	123	if (count == 0)
	124	bytes[count++] = TEA6330T_SADDR_VOLUME_RIGHT;
	125	bytes[count++] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] = tea->mright;
	126	}
	127	if (count > 0) {
	128	if ((err = snd_i2c_sendbytes(tea->device, bytes, count)) < 0)
	129	change = err;
	130	}
	131	snd_i2c_unlock(tea->bus);
	132	return change;
	133	}
	134
	135	#define TEA6330T_MASTER_SWITCH(xname, xindex) \
	136	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
	137	.info = snd_tea6330t_info_master_switch, \
138	.get = snd_tea6330t_get_master_switch, .put = snd_tea6330t_put_master_switch }
139
140	static int snd_tea6330t_info_master_switch(snd_kcontrol_t kcontrol, snd_ctl_elem_info_t uinfo)
141	{
142	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
143	uinfo->count = 2;
144	uinfo->value.integer.min = 0;
145	uinfo->value.integer.max = 1;
146	return 0;
147	}
148
149	static int snd_tea6330t_get_master_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
150	{
151	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
152
153	snd_i2c_lock(tea->bus);
154	ucontrol->value.integer.value[0] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] == 0 ? 0 : 1;
155	ucontrol->value.integer.value[1] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] == 0 ? 0 : 1;
156	snd_i2c_unlock(tea->bus);
157	return 0;
158	}
159
160	static int snd_tea6330t_put_master_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
161	{
162	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
163	int change, err;
164	unsigned char bytes[3];
165	unsigned char oval1, oval2, val1, val2;
166
167	val1 = ucontrol->value.integer.value[0] & 1;
168	val2 = ucontrol->value.integer.value[1] & 1;
169	snd_i2c_lock(tea->bus);
170	oval1 = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] == 0 ? 0 : 1;
171	oval2 = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] == 0 ? 0 : 1;
172	change = val1 != oval1 \|\| val2 != oval2;
173	tea->regs[TEA6330T_SADDR_VOLUME_LEFT] = val1 ? tea->mleft : 0;
174	tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] = val2 ? tea->mright : 0;
175	bytes[0] = TEA6330T_SADDR_VOLUME_LEFT;
176	bytes[1] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT];
177	bytes[2] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT];
178	if ((err = snd_i2c_sendbytes(tea->device, bytes, 3)) < 0)
179	change = err;
180	snd_i2c_unlock(tea->bus);
181	return change;
182	}
183
184	#define TEA6330T_BASS(xname, xindex) \
185	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
186	.info = snd_tea6330t_info_bass, \
187	.get = snd_tea6330t_get_bass, .put = snd_tea6330t_put_bass }
188
189	static int snd_tea6330t_info_bass(snd_kcontrol_t kcontrol, snd_ctl_elem_info_t uinfo)
190	{
191	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
192
193	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
194	uinfo->count = 1;
195	uinfo->value.integer.min = 0;
196	uinfo->value.integer.max = tea->max_bass;
197	return 0;
198	}
199
200	static int snd_tea6330t_get_bass(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
201	{
202	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
203
204	ucontrol->value.integer.value[0] = tea->bass;
205	return 0;
206	}
207
208	static int snd_tea6330t_put_bass(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
209	{
210	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
211	int change, err;
212	unsigned char bytes[2];
213	unsigned char val1;
214
215	val1 = ucontrol->value.integer.value[0] % (tea->max_bass + 1);
216	snd_i2c_lock(tea->bus);
217	tea->bass = val1;
218	val1 += tea->equalizer ? 7 : 3;
219	change = tea->regs[TEA6330T_SADDR_BASS] != val1;
220	bytes[0] = TEA6330T_SADDR_BASS;
221	bytes[1] = tea->regs[TEA6330T_SADDR_BASS] = val1;
222	if ((err = snd_i2c_sendbytes(tea->device, bytes, 2)) < 0)
223	change = err;
224	snd_i2c_unlock(tea->bus);
225	return change;
226	}
227
228	#define TEA6330T_TREBLE(xname, xindex) \
229	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
230	.info = snd_tea6330t_info_treble, \
231	.get = snd_tea6330t_get_treble, .put = snd_tea6330t_put_treble }
232
233	static int snd_tea6330t_info_treble(snd_kcontrol_t kcontrol, snd_ctl_elem_info_t uinfo)
234	{
235	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
236
237	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
238	uinfo->count = 1;
239	uinfo->value.integer.min = 0;
240	uinfo->value.integer.max = tea->max_treble;
241	return 0;
242	}
243
244	static int snd_tea6330t_get_treble(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
245	{
246	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
247
248	ucontrol->value.integer.value[0] = tea->treble;
249	return 0;
250	}
251
252	static int snd_tea6330t_put_treble(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
253	{
254	tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
255	int change, err;
256	unsigned char bytes[2];
257	unsigned char val1;
258
259	val1 = ucontrol->value.integer.value[0] % (tea->max_treble + 1);
260	snd_i2c_lock(tea->bus);
261	tea->treble = val1;
262	val1 += 3;
263	change = tea->regs[TEA6330T_SADDR_TREBLE] != val1;
264	bytes[0] = TEA6330T_SADDR_TREBLE;
265	bytes[1] = tea->regs[TEA6330T_SADDR_TREBLE] = val1;
266	if ((err = snd_i2c_sendbytes(tea->device, bytes, 2)) < 0)
267	change = err;
268	snd_i2c_unlock(tea->bus);
269	return change;
270	}
271
272	static snd_kcontrol_new_t snd_tea6330t_controls[] = {
273	TEA6330T_MASTER_SWITCH("Master Playback Switch", 0),
274	TEA6330T_MASTER_VOLUME("Master Playback Volume", 0),
275	TEA6330T_BASS("Tone Control - Bass", 0),
276	TEA6330T_TREBLE("Tone Control - Treble", 0)
277	};
278
279	static void snd_tea6330_free(snd_i2c_device_t *device)
280	{
4d572776	281	kfree(device->private_data);
1da177e4 LT	282	}
	283
	284	int snd_tea6330t_update_mixer(snd_card_t * card,
	285	snd_i2c_bus_t *bus,
	286	int equalizer, int fader)
	287	{
	288	snd_i2c_device_t *device;
	289	tea6330t_t *tea;
	290	snd_kcontrol_new_t *knew;
	291	unsigned int idx;
	292	int err = -ENOMEM;
	293	u8 default_treble, default_bass;
	294	unsigned char bytes[7];
	295
561b220a	296	tea = kzalloc(sizeof(*tea), GFP_KERNEL);
1da177e4 LT	297	if (tea == NULL)
	298	return -ENOMEM;
	299	if ((err = snd_i2c_device_create(bus, "TEA6330T", TEA6330T_ADDR, &device)) < 0) {
	300	kfree(tea);
	301	return err;
	302	}
	303	tea->device = device;
	304	tea->bus = bus;
	305	tea->equalizer = equalizer;
	306	tea->fader = fader;
	307	device->private_data = tea;
	308	device->private_free = snd_tea6330_free;
	309
	310	snd_i2c_lock(bus);
	311
	312	/* turn fader off and handle equalizer */
	313	tea->regs[TEA6330T_SADDR_FADER] = 0x3f;
	314	tea->regs[TEA6330T_SADDR_AUDIO_SWITCH] = equalizer ? 0 : TEA6330T_EQN;
	315	/* initialize mixer */
	316	if (!tea->equalizer) {
	317	tea->max_bass = 9;
	318	tea->max_treble = 8;
	319	default_bass = 3 + 4;
	320	tea->bass = 4;
	321	default_treble = 3 + 4;
	322	tea->treble = 4;
	323	} else {
	324	tea->max_bass = 5;
	325	tea->max_treble = 0;
	326	default_bass = 7 + 4;
	327	tea->bass = 4;
	328	default_treble = 3;
	329	tea->treble = 0;
	330	}
	331	tea->mleft = tea->mright = 0x14;
	332	tea->regs[TEA6330T_SADDR_BASS] = default_bass;
	333	tea->regs[TEA6330T_SADDR_TREBLE] = default_treble;
	334
	335	/* compose I2C message and put the hardware to initial state */
	336	bytes[0] = TEA6330T_SADDR_VOLUME_LEFT;
	337	for (idx = 0; idx < 6; idx++)
	338	bytes[idx+1] = tea->regs[idx];
	339	if ((err = snd_i2c_sendbytes(device, bytes, 7)) < 0)
	340	goto __error;
	341
	342	strcat(card->mixername, ",TEA6330T");
	343	if ((err = snd_component_add(card, "TEA6330T")) < 0)
	344	goto __error;
	345
	346	for (idx = 0; idx < ARRAY_SIZE(snd_tea6330t_controls); idx++) {
	347	knew = &snd_tea6330t_controls[idx];
	348	if (tea->treble == 0 && !strcmp(knew->name, "Tone Control - Treble"))
	349	continue;
	350	if ((err = snd_ctl_add(card, snd_ctl_new1(knew, tea))) < 0)
	351	goto __error;
	352	}
	353
	354	snd_i2c_unlock(bus);
	355	return 0;
	356
	357	__error:
	358	snd_i2c_unlock(bus);
	359	snd_i2c_device_free(device);
	360	return err;
361	}
362
363	EXPORT_SYMBOL(snd_tea6330t_detect);
364	EXPORT_SYMBOL(snd_tea6330t_update_mixer);
365
366	/*
367	* INIT part
368	*/
369
370	static int __init alsa_tea6330t_init(void)
371	{
372	return 0;
373	}
374
375	static void __exit alsa_tea6330t_exit(void)
376	{
377	}
378
379	module_init(alsa_tea6330t_init)
380	module_exit(alsa_tea6330t_exit)