![Takashi Iwai](/assets/img/avatar_default.png)
Documentation,SA11xx UDA1341 driver,Generic drivers,MPU401 UART,OPL3 OPL4,Digigram VX core,I2C cs8427,I2C lib core,I2C tea6330t,L3 drivers AK4114 receiver,AK4117 receiver,PDAudioCF driver,PPC PMAC driver SPARC AMD7930 driver,SPARC cs4231 driver,Synth,Common EMU synth USB generic driver,USB USX2Y Replace kcalloc(1,..) with kzalloc(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
369 lines
11 KiB
C
369 lines
11 KiB
C
/*
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* Routines for control of the TEA6330T circuit via i2c bus
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* Sound fader control circuit for car radios by Philips Semiconductors
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* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <sound/driver.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include <sound/tea6330t.h>
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MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
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MODULE_DESCRIPTION("Routines for control of the TEA6330T circuit via i2c bus");
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MODULE_LICENSE("GPL");
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#define TEA6330T_ADDR (0x80>>1) /* fixed address */
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#define TEA6330T_SADDR_VOLUME_LEFT 0x00 /* volume left */
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#define TEA6330T_SADDR_VOLUME_RIGHT 0x01 /* volume right */
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#define TEA6330T_SADDR_BASS 0x02 /* bass control */
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#define TEA6330T_SADDR_TREBLE 0x03 /* treble control */
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#define TEA6330T_SADDR_FADER 0x04 /* fader control */
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#define TEA6330T_MFN 0x20 /* mute control for selected channels */
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#define TEA6330T_FCH 0x10 /* select fader channels - front or rear */
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#define TEA6330T_SADDR_AUDIO_SWITCH 0x05 /* audio switch */
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#define TEA6330T_GMU 0x80 /* mute control, general mute */
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#define TEA6330T_EQN 0x40 /* equalizer switchover (0=equalizer-on) */
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int snd_tea6330t_detect(snd_i2c_bus_t *bus, int equalizer)
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{
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int res;
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snd_i2c_lock(bus);
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res = snd_i2c_probeaddr(bus, TEA6330T_ADDR);
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snd_i2c_unlock(bus);
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return res;
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}
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#if 0
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static void snd_tea6330t_set(tea6330t_t *tea,
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unsigned char addr, unsigned char value)
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{
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#if 0
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printk("set - 0x%x/0x%x\n", addr, value);
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#endif
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snd_i2c_write(tea->bus, TEA6330T_ADDR, addr, value, 1);
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}
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#endif
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#define TEA6330T_MASTER_VOLUME(xname, xindex) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
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.info = snd_tea6330t_info_master_volume, \
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.get = snd_tea6330t_get_master_volume, .put = snd_tea6330t_put_master_volume }
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static int snd_tea6330t_info_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
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{
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uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
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uinfo->count = 2;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = 43;
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return 0;
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}
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static int snd_tea6330t_get_master_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
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{
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tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
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snd_i2c_lock(tea->bus);
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ucontrol->value.integer.value[0] = tea->mleft - 0x14;
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ucontrol->value.integer.value[1] = tea->mright - 0x14;
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snd_i2c_unlock(tea->bus);
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return 0;
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}
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static int snd_tea6330t_put_master_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
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{
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tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
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int change, count, err;
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unsigned char bytes[3];
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unsigned char val1, val2;
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val1 = (ucontrol->value.integer.value[0] % 44) + 0x14;
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val2 = (ucontrol->value.integer.value[1] % 44) + 0x14;
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snd_i2c_lock(tea->bus);
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change = val1 != tea->mleft || val2 != tea->mright;
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tea->mleft = val1;
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tea->mright = val2;
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count = 0;
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if (tea->regs[TEA6330T_SADDR_VOLUME_LEFT] != 0) {
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bytes[count++] = TEA6330T_SADDR_VOLUME_LEFT;
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bytes[count++] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] = tea->mleft;
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}
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if (tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] != 0) {
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if (count == 0)
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bytes[count++] = TEA6330T_SADDR_VOLUME_RIGHT;
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bytes[count++] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] = tea->mright;
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}
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if (count > 0) {
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if ((err = snd_i2c_sendbytes(tea->device, bytes, count)) < 0)
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change = err;
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}
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snd_i2c_unlock(tea->bus);
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return change;
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}
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#define TEA6330T_MASTER_SWITCH(xname, xindex) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
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.info = snd_tea6330t_info_master_switch, \
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.get = snd_tea6330t_get_master_switch, .put = snd_tea6330t_put_master_switch }
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static int snd_tea6330t_info_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
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{
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uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
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uinfo->count = 2;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = 1;
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return 0;
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}
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static int snd_tea6330t_get_master_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
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{
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tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
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snd_i2c_lock(tea->bus);
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ucontrol->value.integer.value[0] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] == 0 ? 0 : 1;
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ucontrol->value.integer.value[1] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] == 0 ? 0 : 1;
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snd_i2c_unlock(tea->bus);
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return 0;
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}
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static int snd_tea6330t_put_master_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
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{
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tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
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int change, err;
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unsigned char bytes[3];
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unsigned char oval1, oval2, val1, val2;
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val1 = ucontrol->value.integer.value[0] & 1;
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val2 = ucontrol->value.integer.value[1] & 1;
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snd_i2c_lock(tea->bus);
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oval1 = tea->regs[TEA6330T_SADDR_VOLUME_LEFT] == 0 ? 0 : 1;
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oval2 = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] == 0 ? 0 : 1;
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change = val1 != oval1 || val2 != oval2;
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tea->regs[TEA6330T_SADDR_VOLUME_LEFT] = val1 ? tea->mleft : 0;
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tea->regs[TEA6330T_SADDR_VOLUME_RIGHT] = val2 ? tea->mright : 0;
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bytes[0] = TEA6330T_SADDR_VOLUME_LEFT;
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bytes[1] = tea->regs[TEA6330T_SADDR_VOLUME_LEFT];
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bytes[2] = tea->regs[TEA6330T_SADDR_VOLUME_RIGHT];
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if ((err = snd_i2c_sendbytes(tea->device, bytes, 3)) < 0)
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change = err;
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snd_i2c_unlock(tea->bus);
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return change;
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}
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#define TEA6330T_BASS(xname, xindex) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
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.info = snd_tea6330t_info_bass, \
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.get = snd_tea6330t_get_bass, .put = snd_tea6330t_put_bass }
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static int snd_tea6330t_info_bass(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
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{
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tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
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uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
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uinfo->count = 1;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = tea->max_bass;
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return 0;
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}
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static int snd_tea6330t_get_bass(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
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{
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tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
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ucontrol->value.integer.value[0] = tea->bass;
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return 0;
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}
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static int snd_tea6330t_put_bass(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
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{
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tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
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int change, err;
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unsigned char bytes[2];
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unsigned char val1;
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val1 = ucontrol->value.integer.value[0] % (tea->max_bass + 1);
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snd_i2c_lock(tea->bus);
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tea->bass = val1;
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val1 += tea->equalizer ? 7 : 3;
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change = tea->regs[TEA6330T_SADDR_BASS] != val1;
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bytes[0] = TEA6330T_SADDR_BASS;
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bytes[1] = tea->regs[TEA6330T_SADDR_BASS] = val1;
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if ((err = snd_i2c_sendbytes(tea->device, bytes, 2)) < 0)
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change = err;
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snd_i2c_unlock(tea->bus);
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return change;
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}
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#define TEA6330T_TREBLE(xname, xindex) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
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.info = snd_tea6330t_info_treble, \
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.get = snd_tea6330t_get_treble, .put = snd_tea6330t_put_treble }
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static int snd_tea6330t_info_treble(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
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{
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tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
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uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
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uinfo->count = 1;
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uinfo->value.integer.min = 0;
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uinfo->value.integer.max = tea->max_treble;
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return 0;
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}
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static int snd_tea6330t_get_treble(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
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{
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tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
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ucontrol->value.integer.value[0] = tea->treble;
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return 0;
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}
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static int snd_tea6330t_put_treble(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
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{
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tea6330t_t *tea = snd_kcontrol_chip(kcontrol);
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int change, err;
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unsigned char bytes[2];
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unsigned char val1;
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val1 = ucontrol->value.integer.value[0] % (tea->max_treble + 1);
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snd_i2c_lock(tea->bus);
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tea->treble = val1;
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val1 += 3;
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change = tea->regs[TEA6330T_SADDR_TREBLE] != val1;
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bytes[0] = TEA6330T_SADDR_TREBLE;
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bytes[1] = tea->regs[TEA6330T_SADDR_TREBLE] = val1;
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if ((err = snd_i2c_sendbytes(tea->device, bytes, 2)) < 0)
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change = err;
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snd_i2c_unlock(tea->bus);
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return change;
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}
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static snd_kcontrol_new_t snd_tea6330t_controls[] = {
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TEA6330T_MASTER_SWITCH("Master Playback Switch", 0),
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TEA6330T_MASTER_VOLUME("Master Playback Volume", 0),
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TEA6330T_BASS("Tone Control - Bass", 0),
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TEA6330T_TREBLE("Tone Control - Treble", 0)
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};
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static void snd_tea6330_free(snd_i2c_device_t *device)
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{
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kfree(device->private_data);
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}
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int snd_tea6330t_update_mixer(snd_card_t * card,
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snd_i2c_bus_t *bus,
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int equalizer, int fader)
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{
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snd_i2c_device_t *device;
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tea6330t_t *tea;
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snd_kcontrol_new_t *knew;
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unsigned int idx;
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int err = -ENOMEM;
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u8 default_treble, default_bass;
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unsigned char bytes[7];
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tea = kzalloc(sizeof(*tea), GFP_KERNEL);
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if (tea == NULL)
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return -ENOMEM;
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if ((err = snd_i2c_device_create(bus, "TEA6330T", TEA6330T_ADDR, &device)) < 0) {
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kfree(tea);
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return err;
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}
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tea->device = device;
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tea->bus = bus;
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tea->equalizer = equalizer;
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tea->fader = fader;
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device->private_data = tea;
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device->private_free = snd_tea6330_free;
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snd_i2c_lock(bus);
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/* turn fader off and handle equalizer */
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tea->regs[TEA6330T_SADDR_FADER] = 0x3f;
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tea->regs[TEA6330T_SADDR_AUDIO_SWITCH] = equalizer ? 0 : TEA6330T_EQN;
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/* initialize mixer */
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if (!tea->equalizer) {
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tea->max_bass = 9;
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tea->max_treble = 8;
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default_bass = 3 + 4;
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tea->bass = 4;
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default_treble = 3 + 4;
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tea->treble = 4;
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} else {
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tea->max_bass = 5;
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tea->max_treble = 0;
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default_bass = 7 + 4;
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tea->bass = 4;
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default_treble = 3;
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tea->treble = 0;
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}
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tea->mleft = tea->mright = 0x14;
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tea->regs[TEA6330T_SADDR_BASS] = default_bass;
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tea->regs[TEA6330T_SADDR_TREBLE] = default_treble;
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/* compose I2C message and put the hardware to initial state */
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bytes[0] = TEA6330T_SADDR_VOLUME_LEFT;
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for (idx = 0; idx < 6; idx++)
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bytes[idx+1] = tea->regs[idx];
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if ((err = snd_i2c_sendbytes(device, bytes, 7)) < 0)
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goto __error;
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strcat(card->mixername, ",TEA6330T");
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if ((err = snd_component_add(card, "TEA6330T")) < 0)
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goto __error;
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for (idx = 0; idx < ARRAY_SIZE(snd_tea6330t_controls); idx++) {
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knew = &snd_tea6330t_controls[idx];
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if (tea->treble == 0 && !strcmp(knew->name, "Tone Control - Treble"))
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continue;
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if ((err = snd_ctl_add(card, snd_ctl_new1(knew, tea))) < 0)
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goto __error;
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}
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snd_i2c_unlock(bus);
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return 0;
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__error:
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snd_i2c_unlock(bus);
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snd_i2c_device_free(device);
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return err;
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}
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EXPORT_SYMBOL(snd_tea6330t_detect);
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EXPORT_SYMBOL(snd_tea6330t_update_mixer);
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/*
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* INIT part
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*/
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static int __init alsa_tea6330t_init(void)
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{
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return 0;
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}
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static void __exit alsa_tea6330t_exit(void)
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{
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}
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module_init(alsa_tea6330t_init)
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module_exit(alsa_tea6330t_exit)
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