[linux-2.6-block.git] / sound / i2c / tea6330t.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  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@perex.cz>
 */

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

MODULE_AUTHOR("Jaroslav Kysela <perex@perex.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) */


struct tea6330t {
	struct snd_i2c_device *device;
	struct snd_i2c_bus *bus;
	int equalizer;
	int fader;
	unsigned char regs[8];
	unsigned char mleft, mright;
	unsigned char bass, treble;
	unsigned char max_bass, max_treble;
};


int snd_tea6330t_detect(struct snd_i2c_bus *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(struct tea6330t *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(struct snd_kcontrol *kcontrol,
					   struct snd_ctl_elem_info *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(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_value *ucontrol)
{
	struct tea6330t *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(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_value *ucontrol)
{
	struct tea6330t *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 }

#define snd_tea6330t_info_master_switch		snd_ctl_boolean_stereo_info

static int snd_tea6330t_get_master_switch(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_value *ucontrol)
{
	struct tea6330t *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(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_value *ucontrol)
{
	struct tea6330t *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(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_info *uinfo)
{
	struct tea6330t *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(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
	
	ucontrol->value.integer.value[0] = tea->bass;
	return 0;
}

static int snd_tea6330t_put_bass(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct tea6330t *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(struct snd_kcontrol *kcontrol,
				    struct snd_ctl_elem_info *uinfo)
{
	struct tea6330t *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(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
	
	ucontrol->value.integer.value[0] = tea->treble;
	return 0;
}

static int snd_tea6330t_put_treble(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct tea6330t *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 struct snd_kcontrol_new 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(struct snd_i2c_device *device)
{
	kfree(device->private_data);
}
                                        
int snd_tea6330t_update_mixer(struct snd_card *card,
			      struct snd_i2c_bus *bus,
			      int equalizer, int fader)
{
	struct snd_i2c_device *device;
	struct tea6330t *tea;
	struct snd_kcontrol_new *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);
Commit	Line	Data
1a59d1b8	1	// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4 LT	2	/*
	3	* Routines for control of the TEA6330T circuit via i2c bus
	4	* Sound fader control circuit for car radios by Philips Semiconductors
c1017a4c	5	* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
1da177e4 LT	6	*/
1da177e4 LT	7
1da177e4 LT	8	#include <linux/init.h>
1da177e4 LT	9	#include <linux/slab.h>
da155d5b	10	#include <linux/module.h>
1da177e4	11	#include <sound/core.h>
c8714ba1	12	#include <sound/control.h>
1da177e4 LT	13	#include <sound/tea6330t.h>
1da177e4 LT	14
c1017a4c	15	MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
1da177e4 LT	16	MODULE_DESCRIPTION("Routines for control of the TEA6330T circuit via i2c bus");
	17	MODULE_LICENSE("GPL");
	18
	19	#define TEA6330T_ADDR (0x80>>1) /* fixed address */
	20
	21	#define TEA6330T_SADDR_VOLUME_LEFT 0x00 /* volume left */
	22	#define TEA6330T_SADDR_VOLUME_RIGHT 0x01 /* volume right */
	23	#define TEA6330T_SADDR_BASS 0x02 /* bass control */
	24	#define TEA6330T_SADDR_TREBLE 0x03 /* treble control */
	25	#define TEA6330T_SADDR_FADER 0x04 /* fader control */
	26	#define TEA6330T_MFN 0x20 /* mute control for selected channels */
	27	#define TEA6330T_FCH 0x10 /* select fader channels - front or rear */
	28	#define TEA6330T_SADDR_AUDIO_SWITCH 0x05 /* audio switch */
	29	#define TEA6330T_GMU 0x80 /* mute control, general mute */
	30	#define TEA6330T_EQN 0x40 /* equalizer switchover (0=equalizer-on) */
	31
97f02e05 TI	32
	33	struct tea6330t {
	34	struct snd_i2c_device *device;
	35	struct snd_i2c_bus *bus;
c8714ba1 TI	36	int equalizer;
	37	int fader;
	38	unsigned char regs[8];
	39	unsigned char mleft, mright;
	40	unsigned char bass, treble;
	41	unsigned char max_bass, max_treble;
97f02e05 TI	42	};
97f02e05 TI	43
c8714ba1	44
97f02e05	45	int snd_tea6330t_detect(struct snd_i2c_bus *bus, int equalizer)
1da177e4 LT	46	{
	47	int res;
	48
	49	snd_i2c_lock(bus);
	50	res = snd_i2c_probeaddr(bus, TEA6330T_ADDR);
	51	snd_i2c_unlock(bus);
	52	return res;
	53	}
	54
	55	#if 0
97f02e05	56	static void snd_tea6330t_set(struct tea6330t *tea,
1da177e4 LT	57	unsigned char addr, unsigned char value)
	58	{
	59	#if 0
99b359ba	60	printk(KERN_DEBUG "set - 0x%x/0x%x\n", addr, value);
1da177e4 LT	61	#endif
	62	snd_i2c_write(tea->bus, TEA6330T_ADDR, addr, value, 1);
	63	}
	64	#endif
	65
	66	#define TEA6330T_MASTER_VOLUME(xname, xindex) \
	67	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
	68	.info = snd_tea6330t_info_master_volume, \
	69	.get = snd_tea6330t_get_master_volume, .put = snd_tea6330t_put_master_volume }
	70
97f02e05 TI	71	static int snd_tea6330t_info_master_volume(struct snd_kcontrol *kcontrol,
97f02e05 TI	72	struct snd_ctl_elem_info *uinfo)
1da177e4 LT	73	{
	74	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	75	uinfo->count = 2;
	76	uinfo->value.integer.min = 0;
	77	uinfo->value.integer.max = 43;
	78	return 0;
	79	}
	80
97f02e05 TI	81	static int snd_tea6330t_get_master_volume(struct snd_kcontrol *kcontrol,
97f02e05 TI	82	struct snd_ctl_elem_value *ucontrol)
1da177e4	83	{
97f02e05	84	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
1da177e4 LT	85
	86	snd_i2c_lock(tea->bus);
	87	ucontrol->value.integer.value[0] = tea->mleft - 0x14;
	88	ucontrol->value.integer.value[1] = tea->mright - 0x14;
	89	snd_i2c_unlock(tea->bus);
	90	return 0;
	91	}
	92
97f02e05 TI	93	static int snd_tea6330t_put_master_volume(struct snd_kcontrol *kcontrol,
97f02e05 TI	94	struct snd_ctl_elem_value *ucontrol)
1da177e4	95	{
97f02e05	96	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
1da177e4 LT	97	int change, count, err;
	98	unsigned char bytes[3];
	99	unsigned char val1, val2;
	100
	101	val1 = (ucontrol->value.integer.value[0] % 44) + 0x14;
	102	val2 = (ucontrol->value.integer.value[1] % 44) + 0x14;
	103	snd_i2c_lock(tea->bus);
	104	change = val1 != tea->mleft \|\| val2 != tea->mright;
	105	tea->mleft = val1;
	106	tea->mright = val2;
	107	count = 0;
	108	if (tea->regs[TEA6330T_SADDR_VOLUME_LEFT] != 0) {
	109	bytes[count++] = TEA6330T_SADDR_VOLUME_LEFT;
	110	bytes[count++] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] = tea->mleft;
	111	}
	112	if (tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] != 0) {
	113	if (count == 0)
	114	bytes[count++] = TEA6330T_SADDR_VOLUME_RIGHT;
	115	bytes[count++] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] = tea->mright;
	116	}
	117	if (count > 0) {
	118	if ((err = snd_i2c_sendbytes(tea->device, bytes, count)) < 0)
	119	change = err;
	120	}
	121	snd_i2c_unlock(tea->bus);
	122	return change;
	123	}
	124
	125	#define TEA6330T_MASTER_SWITCH(xname, xindex) \
	126	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
	127	.info = snd_tea6330t_info_master_switch, \
	128	.get = snd_tea6330t_get_master_switch, .put = snd_tea6330t_put_master_switch }
	129
a5ce8890	130	#define snd_tea6330t_info_master_switch snd_ctl_boolean_stereo_info
1da177e4	131
97f02e05 TI	132	static int snd_tea6330t_get_master_switch(struct snd_kcontrol *kcontrol,
97f02e05 TI	133	struct snd_ctl_elem_value *ucontrol)
1da177e4	134	{
97f02e05	135	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
1da177e4 LT	136
	137	snd_i2c_lock(tea->bus);
	138	ucontrol->value.integer.value[0] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] == 0 ? 0 : 1;
	139	ucontrol->value.integer.value[1] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] == 0 ? 0 : 1;
	140	snd_i2c_unlock(tea->bus);
	141	return 0;
	142	}
	143
97f02e05 TI	144	static int snd_tea6330t_put_master_switch(struct snd_kcontrol *kcontrol,
97f02e05 TI	145	struct snd_ctl_elem_value *ucontrol)
1da177e4	146	{
97f02e05	147	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
1da177e4 LT	148	int change, err;
	149	unsigned char bytes[3];
	150	unsigned char oval1, oval2, val1, val2;
	151
	152	val1 = ucontrol->value.integer.value[0] & 1;
	153	val2 = ucontrol->value.integer.value[1] & 1;
	154	snd_i2c_lock(tea->bus);
	155	oval1 = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] == 0 ? 0 : 1;
	156	oval2 = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] == 0 ? 0 : 1;
	157	change = val1 != oval1 \|\| val2 != oval2;
	158	tea->regs[TEA6330T_SADDR_VOLUME_LEFT] = val1 ? tea->mleft : 0;
	159	tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] = val2 ? tea->mright : 0;
	160	bytes[0] = TEA6330T_SADDR_VOLUME_LEFT;
	161	bytes[1] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT];
	162	bytes[2] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT];
	163	if ((err = snd_i2c_sendbytes(tea->device, bytes, 3)) < 0)
	164	change = err;
	165	snd_i2c_unlock(tea->bus);
	166	return change;
	167	}
	168
	169	#define TEA6330T_BASS(xname, xindex) \
	170	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
	171	.info = snd_tea6330t_info_bass, \
	172	.get = snd_tea6330t_get_bass, .put = snd_tea6330t_put_bass }
	173
97f02e05 TI	174	static int snd_tea6330t_info_bass(struct snd_kcontrol *kcontrol,
97f02e05 TI	175	struct snd_ctl_elem_info *uinfo)
1da177e4	176	{
97f02e05	177	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
1da177e4 LT	178
	179	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	180	uinfo->count = 1;
	181	uinfo->value.integer.min = 0;
	182	uinfo->value.integer.max = tea->max_bass;
	183	return 0;
	184	}
	185
97f02e05 TI	186	static int snd_tea6330t_get_bass(struct snd_kcontrol *kcontrol,
97f02e05 TI	187	struct snd_ctl_elem_value *ucontrol)
1da177e4	188	{
97f02e05	189	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
1da177e4 LT	190
	191	ucontrol->value.integer.value[0] = tea->bass;
	192	return 0;
	193	}
	194
97f02e05 TI	195	static int snd_tea6330t_put_bass(struct snd_kcontrol *kcontrol,
97f02e05 TI	196	struct snd_ctl_elem_value *ucontrol)
1da177e4	197	{
97f02e05	198	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
1da177e4 LT	199	int change, err;
	200	unsigned char bytes[2];
	201	unsigned char val1;
	202
	203	val1 = ucontrol->value.integer.value[0] % (tea->max_bass + 1);
	204	snd_i2c_lock(tea->bus);
	205	tea->bass = val1;
	206	val1 += tea->equalizer ? 7 : 3;
	207	change = tea->regs[TEA6330T_SADDR_BASS] != val1;
	208	bytes[0] = TEA6330T_SADDR_BASS;
	209	bytes[1] = tea->regs[TEA6330T_SADDR_BASS] = val1;
	210	if ((err = snd_i2c_sendbytes(tea->device, bytes, 2)) < 0)
	211	change = err;
	212	snd_i2c_unlock(tea->bus);
	213	return change;
	214	}
	215
	216	#define TEA6330T_TREBLE(xname, xindex) \
	217	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
	218	.info = snd_tea6330t_info_treble, \
	219	.get = snd_tea6330t_get_treble, .put = snd_tea6330t_put_treble }
	220
97f02e05 TI	221	static int snd_tea6330t_info_treble(struct snd_kcontrol *kcontrol,
97f02e05 TI	222	struct snd_ctl_elem_info *uinfo)
1da177e4	223	{
97f02e05	224	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
1da177e4 LT	225
	226	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	227	uinfo->count = 1;
	228	uinfo->value.integer.min = 0;
	229	uinfo->value.integer.max = tea->max_treble;
	230	return 0;
	231	}
	232
97f02e05 TI	233	static int snd_tea6330t_get_treble(struct snd_kcontrol *kcontrol,
97f02e05 TI	234	struct snd_ctl_elem_value *ucontrol)
1da177e4	235	{
97f02e05	236	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
1da177e4 LT	237
	238	ucontrol->value.integer.value[0] = tea->treble;
	239	return 0;
	240	}
	241
97f02e05 TI	242	static int snd_tea6330t_put_treble(struct snd_kcontrol *kcontrol,
97f02e05 TI	243	struct snd_ctl_elem_value *ucontrol)
1da177e4	244	{
97f02e05	245	struct tea6330t *tea = snd_kcontrol_chip(kcontrol);
1da177e4 LT	246	int change, err;
	247	unsigned char bytes[2];
	248	unsigned char val1;
	249
	250	val1 = ucontrol->value.integer.value[0] % (tea->max_treble + 1);
	251	snd_i2c_lock(tea->bus);
	252	tea->treble = val1;
	253	val1 += 3;
	254	change = tea->regs[TEA6330T_SADDR_TREBLE] != val1;
	255	bytes[0] = TEA6330T_SADDR_TREBLE;
	256	bytes[1] = tea->regs[TEA6330T_SADDR_TREBLE] = val1;
	257	if ((err = snd_i2c_sendbytes(tea->device, bytes, 2)) < 0)
	258	change = err;
	259	snd_i2c_unlock(tea->bus);
	260	return change;
	261	}
	262
97f02e05	263	static struct snd_kcontrol_new snd_tea6330t_controls[] = {
1da177e4 LT	264	TEA6330T_MASTER_SWITCH("Master Playback Switch", 0),
	265	TEA6330T_MASTER_VOLUME("Master Playback Volume", 0),
	266	TEA6330T_BASS("Tone Control - Bass", 0),
	267	TEA6330T_TREBLE("Tone Control - Treble", 0)
	268	};
	269
97f02e05	270	static void snd_tea6330_free(struct snd_i2c_device *device)
1da177e4	271	{
4d572776	272	kfree(device->private_data);
1da177e4 LT	273	}
1da177e4 LT	274
97f02e05 TI	275	int snd_tea6330t_update_mixer(struct snd_card *card,
97f02e05 TI	276	struct snd_i2c_bus *bus,
1da177e4 LT	277	int equalizer, int fader)
1da177e4 LT	278	{
97f02e05 TI	279	struct snd_i2c_device *device;
	280	struct tea6330t *tea;
	281	struct snd_kcontrol_new *knew;
1da177e4 LT	282	unsigned int idx;
	283	int err = -ENOMEM;
	284	u8 default_treble, default_bass;
	285	unsigned char bytes[7];
	286
561b220a	287	tea = kzalloc(sizeof(*tea), GFP_KERNEL);
1da177e4 LT	288	if (tea == NULL)
	289	return -ENOMEM;
	290	if ((err = snd_i2c_device_create(bus, "TEA6330T", TEA6330T_ADDR, &device)) < 0) {
	291	kfree(tea);
	292	return err;
	293	}
	294	tea->device = device;
	295	tea->bus = bus;
	296	tea->equalizer = equalizer;
	297	tea->fader = fader;
	298	device->private_data = tea;
	299	device->private_free = snd_tea6330_free;
	300
	301	snd_i2c_lock(bus);
	302
	303	/* turn fader off and handle equalizer */
	304	tea->regs[TEA6330T_SADDR_FADER] = 0x3f;
	305	tea->regs[TEA6330T_SADDR_AUDIO_SWITCH] = equalizer ? 0 : TEA6330T_EQN;
	306	/* initialize mixer */
	307	if (!tea->equalizer) {
	308	tea->max_bass = 9;
	309	tea->max_treble = 8;
	310	default_bass = 3 + 4;
	311	tea->bass = 4;
	312	default_treble = 3 + 4;
	313	tea->treble = 4;
	314	} else {
	315	tea->max_bass = 5;
	316	tea->max_treble = 0;
	317	default_bass = 7 + 4;
	318	tea->bass = 4;
	319	default_treble = 3;
	320	tea->treble = 0;
	321	}
	322	tea->mleft = tea->mright = 0x14;
	323	tea->regs[TEA6330T_SADDR_BASS] = default_bass;
	324	tea->regs[TEA6330T_SADDR_TREBLE] = default_treble;
	325
	326	/* compose I2C message and put the hardware to initial state */
	327	bytes[0] = TEA6330T_SADDR_VOLUME_LEFT;
	328	for (idx = 0; idx < 6; idx++)
	329	bytes[idx+1] = tea->regs[idx];
	330	if ((err = snd_i2c_sendbytes(device, bytes, 7)) < 0)
	331	goto __error;
	332
	333	strcat(card->mixername, ",TEA6330T");
	334	if ((err = snd_component_add(card, "TEA6330T")) < 0)
	335	goto __error;
	336
	337	for (idx = 0; idx < ARRAY_SIZE(snd_tea6330t_controls); idx++) {
	338	knew = &snd_tea6330t_controls[idx];
	339	if (tea->treble == 0 && !strcmp(knew->name, "Tone Control - Treble"))
	340	continue;
	341	if ((err = snd_ctl_add(card, snd_ctl_new1(knew, tea))) < 0)
	342	goto __error;
	343	}
	344
	345	snd_i2c_unlock(bus);
	346	return 0;
	347
	348	__error:
	349	snd_i2c_unlock(bus);
	350	snd_i2c_device_free(device);
	351	return err;
352	}
353
354	EXPORT_SYMBOL(snd_tea6330t_detect);
355	EXPORT_SYMBOL(snd_tea6330t_update_mixer);