diff options
Diffstat (limited to 'sound/ppc/tumbler.c')
| -rw-r--r-- | sound/ppc/tumbler.c | 1498 |
1 files changed, 1498 insertions, 0 deletions
diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c new file mode 100644 index 0000000000..12f1e10db1 --- /dev/null +++ b/sound/ppc/tumbler.c @@ -0,0 +1,1498 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * PMac Tumbler/Snapper lowlevel functions + * + * Copyright (c) by Takashi Iwai <tiwai@suse.de> + * + * Rene Rebe <rene.rebe@gmx.net>: + * * update from shadow registers on wakeup and headphone plug + * * automatically toggle DRC on headphone plug + */ + + +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/kmod.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/string.h> +#include <linux/of_irq.h> +#include <linux/io.h> +#include <sound/core.h> +#include <asm/irq.h> +#include <asm/machdep.h> +#include <asm/pmac_feature.h> +#include "pmac.h" +#include "tumbler_volume.h" + +#undef DEBUG + +#ifdef DEBUG +#define DBG(fmt...) printk(KERN_DEBUG fmt) +#else +#define DBG(fmt...) +#endif + +#define IS_G4DA (of_machine_is_compatible("PowerMac3,4")) + +/* i2c address for tumbler */ +#define TAS_I2C_ADDR 0x34 + +/* registers */ +#define TAS_REG_MCS 0x01 /* main control */ +#define TAS_REG_DRC 0x02 +#define TAS_REG_VOL 0x04 +#define TAS_REG_TREBLE 0x05 +#define TAS_REG_BASS 0x06 +#define TAS_REG_INPUT1 0x07 +#define TAS_REG_INPUT2 0x08 + +/* tas3001c */ +#define TAS_REG_PCM TAS_REG_INPUT1 + +/* tas3004 */ +#define TAS_REG_LMIX TAS_REG_INPUT1 +#define TAS_REG_RMIX TAS_REG_INPUT2 +#define TAS_REG_MCS2 0x43 /* main control 2 */ +#define TAS_REG_ACS 0x40 /* analog control */ + +/* mono volumes for tas3001c/tas3004 */ +enum { + VOL_IDX_PCM_MONO, /* tas3001c only */ + VOL_IDX_BASS, VOL_IDX_TREBLE, + VOL_IDX_LAST_MONO +}; + +/* stereo volumes for tas3004 */ +enum { + VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC, + VOL_IDX_LAST_MIX +}; + +struct pmac_gpio { + unsigned int addr; + u8 active_val; + u8 inactive_val; + u8 active_state; +}; + +struct pmac_tumbler { + struct pmac_keywest i2c; + struct pmac_gpio audio_reset; + struct pmac_gpio amp_mute; + struct pmac_gpio line_mute; + struct pmac_gpio line_detect; + struct pmac_gpio hp_mute; + struct pmac_gpio hp_detect; + int headphone_irq; + int lineout_irq; + unsigned int save_master_vol[2]; + unsigned int master_vol[2]; + unsigned int save_master_switch[2]; + unsigned int master_switch[2]; + unsigned int mono_vol[VOL_IDX_LAST_MONO]; + unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */ + int drc_range; + int drc_enable; + int capture_source; + int anded_reset; + int auto_mute_notify; + int reset_on_sleep; + u8 acs; +}; + + +/* + */ + +static int send_init_client(struct pmac_keywest *i2c, const unsigned int *regs) +{ + while (*regs > 0) { + int err, count = 10; + do { + err = i2c_smbus_write_byte_data(i2c->client, + regs[0], regs[1]); + if (err >= 0) + break; + DBG("(W) i2c error %d\n", err); + mdelay(10); + } while (count--); + if (err < 0) + return -ENXIO; + regs += 2; + } + return 0; +} + + +static int tumbler_init_client(struct pmac_keywest *i2c) +{ + static const unsigned int regs[] = { + /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */ + TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0, + 0, /* terminator */ + }; + DBG("(I) tumbler init client\n"); + return send_init_client(i2c, regs); +} + +static int snapper_init_client(struct pmac_keywest *i2c) +{ + static const unsigned int regs[] = { + /* normal operation, SCLK=64fps, i2s output, 16bit width */ + TAS_REG_MCS, (1<<6)|(2<<4)|0, + /* normal operation, all-pass mode */ + TAS_REG_MCS2, (1<<1), + /* normal output, no deemphasis, A input, power-up, line-in */ + TAS_REG_ACS, 0, + 0, /* terminator */ + }; + DBG("(I) snapper init client\n"); + return send_init_client(i2c, regs); +} + +/* + * gpio access + */ +#define do_gpio_write(gp, val) \ + pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val) +#define do_gpio_read(gp) \ + pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0) +#define tumbler_gpio_free(gp) /* NOP */ + +static void write_audio_gpio(struct pmac_gpio *gp, int active) +{ + if (! gp->addr) + return; + active = active ? gp->active_val : gp->inactive_val; + do_gpio_write(gp, active); + DBG("(I) gpio %x write %d\n", gp->addr, active); +} + +static int check_audio_gpio(struct pmac_gpio *gp) +{ + int ret; + + if (! gp->addr) + return 0; + + ret = do_gpio_read(gp); + + return (ret & 0x1) == (gp->active_val & 0x1); +} + +static int read_audio_gpio(struct pmac_gpio *gp) +{ + int ret; + if (! gp->addr) + return 0; + ret = do_gpio_read(gp); + ret = (ret & 0x02) !=0; + return ret == gp->active_state; +} + +/* + * update master volume + */ +static int tumbler_set_master_volume(struct pmac_tumbler *mix) +{ + unsigned char block[6]; + unsigned int left_vol, right_vol; + + if (! mix->i2c.client) + return -ENODEV; + + if (! mix->master_switch[0]) + left_vol = 0; + else { + left_vol = mix->master_vol[0]; + if (left_vol >= ARRAY_SIZE(master_volume_table)) + left_vol = ARRAY_SIZE(master_volume_table) - 1; + left_vol = master_volume_table[left_vol]; + } + if (! mix->master_switch[1]) + right_vol = 0; + else { + right_vol = mix->master_vol[1]; + if (right_vol >= ARRAY_SIZE(master_volume_table)) + right_vol = ARRAY_SIZE(master_volume_table) - 1; + right_vol = master_volume_table[right_vol]; + } + + block[0] = (left_vol >> 16) & 0xff; + block[1] = (left_vol >> 8) & 0xff; + block[2] = (left_vol >> 0) & 0xff; + + block[3] = (right_vol >> 16) & 0xff; + block[4] = (right_vol >> 8) & 0xff; + block[5] = (right_vol >> 0) & 0xff; + + if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6, + block) < 0) { + snd_printk(KERN_ERR "failed to set volume \n"); + return -EINVAL; + } + DBG("(I) succeeded to set volume (%u, %u)\n", left_vol, right_vol); + return 0; +} + + +/* output volume */ +static int tumbler_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 = ARRAY_SIZE(master_volume_table) - 1; + return 0; +} + +static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix = chip->mixer_data; + + ucontrol->value.integer.value[0] = mix->master_vol[0]; + ucontrol->value.integer.value[1] = mix->master_vol[1]; + return 0; +} + +static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix = chip->mixer_data; + unsigned int vol[2]; + int change; + + vol[0] = ucontrol->value.integer.value[0]; + vol[1] = ucontrol->value.integer.value[1]; + if (vol[0] >= ARRAY_SIZE(master_volume_table) || + vol[1] >= ARRAY_SIZE(master_volume_table)) + return -EINVAL; + change = mix->master_vol[0] != vol[0] || + mix->master_vol[1] != vol[1]; + if (change) { + mix->master_vol[0] = vol[0]; + mix->master_vol[1] = vol[1]; + tumbler_set_master_volume(mix); + } + return change; +} + +/* output switch */ +static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix = chip->mixer_data; + + ucontrol->value.integer.value[0] = mix->master_switch[0]; + ucontrol->value.integer.value[1] = mix->master_switch[1]; + return 0; +} + +static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix = chip->mixer_data; + int change; + + change = mix->master_switch[0] != ucontrol->value.integer.value[0] || + mix->master_switch[1] != ucontrol->value.integer.value[1]; + if (change) { + mix->master_switch[0] = !!ucontrol->value.integer.value[0]; + mix->master_switch[1] = !!ucontrol->value.integer.value[1]; + tumbler_set_master_volume(mix); + } + return change; +} + + +/* + * TAS3001c dynamic range compression + */ + +#define TAS3001_DRC_MAX 0x5f + +static int tumbler_set_drc(struct pmac_tumbler *mix) +{ + unsigned char val[2]; + + if (! mix->i2c.client) + return -ENODEV; + + if (mix->drc_enable) { + val[0] = 0xc1; /* enable, 3:1 compression */ + if (mix->drc_range > TAS3001_DRC_MAX) + val[1] = 0xf0; + else if (mix->drc_range < 0) + val[1] = 0x91; + else + val[1] = mix->drc_range + 0x91; + } else { + val[0] = 0; + val[1] = 0; + } + + if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC, + 2, val) < 0) { + snd_printk(KERN_ERR "failed to set DRC\n"); + return -EINVAL; + } + DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]); + return 0; +} + +/* + * TAS3004 + */ + +#define TAS3004_DRC_MAX 0xef + +static int snapper_set_drc(struct pmac_tumbler *mix) +{ + unsigned char val[6]; + + if (! mix->i2c.client) + return -ENODEV; + + if (mix->drc_enable) + val[0] = 0x50; /* 3:1 above threshold */ + else + val[0] = 0x51; /* disabled */ + val[1] = 0x02; /* 1:1 below threshold */ + if (mix->drc_range > 0xef) + val[2] = 0xef; + else if (mix->drc_range < 0) + val[2] = 0x00; + else + val[2] = mix->drc_range; + val[3] = 0xb0; + val[4] = 0x60; + val[5] = 0xa0; + + if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC, + 6, val) < 0) { + snd_printk(KERN_ERR "failed to set DRC\n"); + return -EINVAL; + } + DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]); + return 0; +} + +static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = + chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX; + return 0; +} + +static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix; + mix = chip->mixer_data; + if (!mix) + return -ENODEV; + ucontrol->value.integer.value[0] = mix->drc_range; + return 0; +} + +static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix; + unsigned int val; + int change; + + mix = chip->mixer_data; + if (!mix) + return -ENODEV; + val = ucontrol->value.integer.value[0]; + if (chip->model == PMAC_TUMBLER) { + if (val > TAS3001_DRC_MAX) + return -EINVAL; + } else { + if (val > TAS3004_DRC_MAX) + return -EINVAL; + } + change = mix->drc_range != val; + if (change) { + mix->drc_range = val; + if (chip->model == PMAC_TUMBLER) + tumbler_set_drc(mix); + else + snapper_set_drc(mix); + } + return change; +} + +static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix; + mix = chip->mixer_data; + if (!mix) + return -ENODEV; + ucontrol->value.integer.value[0] = mix->drc_enable; + return 0; +} + +static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix; + int change; + + mix = chip->mixer_data; + if (!mix) + return -ENODEV; + change = mix->drc_enable != ucontrol->value.integer.value[0]; + if (change) { + mix->drc_enable = !!ucontrol->value.integer.value[0]; + if (chip->model == PMAC_TUMBLER) + tumbler_set_drc(mix); + else + snapper_set_drc(mix); + } + return change; +} + + +/* + * mono volumes + */ + +struct tumbler_mono_vol { + int index; + int reg; + int bytes; + unsigned int max; + const unsigned int *table; +}; + +static int tumbler_set_mono_volume(struct pmac_tumbler *mix, + const struct tumbler_mono_vol *info) +{ + unsigned char block[4]; + unsigned int vol; + int i; + + if (! mix->i2c.client) + return -ENODEV; + + vol = mix->mono_vol[info->index]; + if (vol >= info->max) + vol = info->max - 1; + vol = info->table[vol]; + for (i = 0; i < info->bytes; i++) + block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff; + if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg, + info->bytes, block) < 0) { + snd_printk(KERN_ERR "failed to set mono volume %d\n", + info->index); + return -EINVAL; + } + return 0; +} + +static int tumbler_info_mono(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = info->max - 1; + return 0; +} + +static int tumbler_get_mono(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value; + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix; + mix = chip->mixer_data; + if (!mix) + return -ENODEV; + ucontrol->value.integer.value[0] = mix->mono_vol[info->index]; + return 0; +} + +static int tumbler_put_mono(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value; + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix; + unsigned int vol; + int change; + + mix = chip->mixer_data; + if (!mix) + return -ENODEV; + vol = ucontrol->value.integer.value[0]; + if (vol >= info->max) + return -EINVAL; + change = mix->mono_vol[info->index] != vol; + if (change) { + mix->mono_vol[info->index] = vol; + tumbler_set_mono_volume(mix, info); + } + return change; +} + +/* TAS3001c mono volumes */ +static const struct tumbler_mono_vol tumbler_pcm_vol_info = { + .index = VOL_IDX_PCM_MONO, + .reg = TAS_REG_PCM, + .bytes = 3, + .max = ARRAY_SIZE(mixer_volume_table), + .table = mixer_volume_table, +}; + +static const struct tumbler_mono_vol tumbler_bass_vol_info = { + .index = VOL_IDX_BASS, + .reg = TAS_REG_BASS, + .bytes = 1, + .max = ARRAY_SIZE(bass_volume_table), + .table = bass_volume_table, +}; + +static const struct tumbler_mono_vol tumbler_treble_vol_info = { + .index = VOL_IDX_TREBLE, + .reg = TAS_REG_TREBLE, + .bytes = 1, + .max = ARRAY_SIZE(treble_volume_table), + .table = treble_volume_table, +}; + +/* TAS3004 mono volumes */ +static const struct tumbler_mono_vol snapper_bass_vol_info = { + .index = VOL_IDX_BASS, + .reg = TAS_REG_BASS, + .bytes = 1, + .max = ARRAY_SIZE(snapper_bass_volume_table), + .table = snapper_bass_volume_table, +}; + +static const struct tumbler_mono_vol snapper_treble_vol_info = { + .index = VOL_IDX_TREBLE, + .reg = TAS_REG_TREBLE, + .bytes = 1, + .max = ARRAY_SIZE(snapper_treble_volume_table), + .table = snapper_treble_volume_table, +}; + + +#define DEFINE_MONO(xname,type) { \ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\ + .name = xname, \ + .info = tumbler_info_mono, \ + .get = tumbler_get_mono, \ + .put = tumbler_put_mono, \ + .private_value = (unsigned long)(&tumbler_##type##_vol_info), \ +} + +#define DEFINE_SNAPPER_MONO(xname,type) { \ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\ + .name = xname, \ + .info = tumbler_info_mono, \ + .get = tumbler_get_mono, \ + .put = tumbler_put_mono, \ + .private_value = (unsigned long)(&snapper_##type##_vol_info), \ +} + + +/* + * snapper mixer volumes + */ + +static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg) +{ + int i, j, vol; + unsigned char block[9]; + + vol = mix->mix_vol[idx][ch]; + if (vol >= ARRAY_SIZE(mixer_volume_table)) { + vol = ARRAY_SIZE(mixer_volume_table) - 1; + mix->mix_vol[idx][ch] = vol; + } + + for (i = 0; i < 3; i++) { + vol = mix->mix_vol[i][ch]; + vol = mixer_volume_table[vol]; + for (j = 0; j < 3; j++) + block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff; + } + if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg, + 9, block) < 0) { + snd_printk(KERN_ERR "failed to set mono volume %d\n", reg); + return -EINVAL; + } + return 0; +} + +static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx) +{ + if (! mix->i2c.client) + return -ENODEV; + if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 || + snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0) + return -EINVAL; + return 0; +} + +static int snapper_info_mix(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 = ARRAY_SIZE(mixer_volume_table) - 1; + return 0; +} + +static int snapper_get_mix(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int idx = (int)kcontrol->private_value; + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix; + mix = chip->mixer_data; + if (!mix) + return -ENODEV; + ucontrol->value.integer.value[0] = mix->mix_vol[idx][0]; + ucontrol->value.integer.value[1] = mix->mix_vol[idx][1]; + return 0; +} + +static int snapper_put_mix(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int idx = (int)kcontrol->private_value; + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix; + unsigned int vol[2]; + int change; + + mix = chip->mixer_data; + if (!mix) + return -ENODEV; + vol[0] = ucontrol->value.integer.value[0]; + vol[1] = ucontrol->value.integer.value[1]; + if (vol[0] >= ARRAY_SIZE(mixer_volume_table) || + vol[1] >= ARRAY_SIZE(mixer_volume_table)) + return -EINVAL; + change = mix->mix_vol[idx][0] != vol[0] || + mix->mix_vol[idx][1] != vol[1]; + if (change) { + mix->mix_vol[idx][0] = vol[0]; + mix->mix_vol[idx][1] = vol[1]; + snapper_set_mix_vol(mix, idx); + } + return change; +} + + +/* + * mute switches. FIXME: Turn that into software mute when both outputs are muted + * to avoid codec reset on ibook M7 + */ + +enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE }; + +static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix; + struct pmac_gpio *gp; + mix = chip->mixer_data; + if (!mix) + return -ENODEV; + switch(kcontrol->private_value) { + case TUMBLER_MUTE_HP: + gp = &mix->hp_mute; break; + case TUMBLER_MUTE_AMP: + gp = &mix->amp_mute; break; + case TUMBLER_MUTE_LINE: + gp = &mix->line_mute; break; + default: + gp = NULL; + } + if (gp == NULL) + return -EINVAL; + ucontrol->value.integer.value[0] = !check_audio_gpio(gp); + return 0; +} + +static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix; + struct pmac_gpio *gp; + int val; +#ifdef PMAC_SUPPORT_AUTOMUTE + if (chip->update_automute && chip->auto_mute) + return 0; /* don't touch in the auto-mute mode */ +#endif + mix = chip->mixer_data; + if (!mix) + return -ENODEV; + switch(kcontrol->private_value) { + case TUMBLER_MUTE_HP: + gp = &mix->hp_mute; break; + case TUMBLER_MUTE_AMP: + gp = &mix->amp_mute; break; + case TUMBLER_MUTE_LINE: + gp = &mix->line_mute; break; + default: + gp = NULL; + } + if (gp == NULL) + return -EINVAL; + val = ! check_audio_gpio(gp); + if (val != ucontrol->value.integer.value[0]) { + write_audio_gpio(gp, ! ucontrol->value.integer.value[0]); + return 1; + } + return 0; +} + +static int snapper_set_capture_source(struct pmac_tumbler *mix) +{ + if (! mix->i2c.client) + return -ENODEV; + if (mix->capture_source) + mix->acs |= 2; + else + mix->acs &= ~2; + return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs); +} + +static int snapper_info_capture_source(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char * const texts[2] = { + "Line", "Mic" + }; + + return snd_ctl_enum_info(uinfo, 1, 2, texts); +} + +static int snapper_get_capture_source(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix = chip->mixer_data; + + ucontrol->value.enumerated.item[0] = mix->capture_source; + return 0; +} + +static int snapper_put_capture_source(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); + struct pmac_tumbler *mix = chip->mixer_data; + int change; + + change = ucontrol->value.enumerated.item[0] != mix->capture_source; + if (change) { + mix->capture_source = !!ucontrol->value.enumerated.item[0]; + snapper_set_capture_source(mix); + } + return change; +} + +#define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\ + .name = xname, \ + .info = snapper_info_mix, \ + .get = snapper_get_mix, \ + .put = snapper_put_mix, \ + .index = idx,\ + .private_value = ofs, \ +} + + +/* + */ +static const struct snd_kcontrol_new tumbler_mixers[] = { + { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Master Playback Volume", + .info = tumbler_info_master_volume, + .get = tumbler_get_master_volume, + .put = tumbler_put_master_volume + }, + { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Master Playback Switch", + .info = snd_pmac_boolean_stereo_info, + .get = tumbler_get_master_switch, + .put = tumbler_put_master_switch + }, + DEFINE_MONO("Tone Control - Bass", bass), + DEFINE_MONO("Tone Control - Treble", treble), + DEFINE_MONO("PCM Playback Volume", pcm), + { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "DRC Range", + .info = tumbler_info_drc_value, + .get = tumbler_get_drc_value, + .put = tumbler_put_drc_value + }, +}; + +static const struct snd_kcontrol_new snapper_mixers[] = { + { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Master Playback Volume", + .info = tumbler_info_master_volume, + .get = tumbler_get_master_volume, + .put = tumbler_put_master_volume + }, + { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Master Playback Switch", + .info = snd_pmac_boolean_stereo_info, + .get = tumbler_get_master_switch, + .put = tumbler_put_master_switch + }, + DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM), + /* Alternative PCM is assigned to Mic analog loopback on iBook G4 */ + DEFINE_SNAPPER_MIX("Mic Playback Volume", 0, VOL_IDX_PCM2), + DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC), + DEFINE_SNAPPER_MONO("Tone Control - Bass", bass), + DEFINE_SNAPPER_MONO("Tone Control - Treble", treble), + { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "DRC Range", + .info = tumbler_info_drc_value, + .get = tumbler_get_drc_value, + .put = tumbler_put_drc_value + }, + { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */ + .info = snapper_info_capture_source, + .get = snapper_get_capture_source, + .put = snapper_put_capture_source + }, +}; + +static const struct snd_kcontrol_new tumbler_hp_sw = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Headphone Playback Switch", + .info = snd_pmac_boolean_mono_info, + .get = tumbler_get_mute_switch, + .put = tumbler_put_mute_switch, + .private_value = TUMBLER_MUTE_HP, +}; +static const struct snd_kcontrol_new tumbler_speaker_sw = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Speaker Playback Switch", + .info = snd_pmac_boolean_mono_info, + .get = tumbler_get_mute_switch, + .put = tumbler_put_mute_switch, + .private_value = TUMBLER_MUTE_AMP, +}; +static const struct snd_kcontrol_new tumbler_lineout_sw = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Line Out Playback Switch", + .info = snd_pmac_boolean_mono_info, + .get = tumbler_get_mute_switch, + .put = tumbler_put_mute_switch, + .private_value = TUMBLER_MUTE_LINE, +}; +static const struct snd_kcontrol_new tumbler_drc_sw = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "DRC Switch", + .info = snd_pmac_boolean_mono_info, + .get = tumbler_get_drc_switch, + .put = tumbler_put_drc_switch +}; + + +#ifdef PMAC_SUPPORT_AUTOMUTE +/* + * auto-mute stuffs + */ +static int tumbler_detect_headphone(struct snd_pmac *chip) +{ + struct pmac_tumbler *mix = chip->mixer_data; + int detect = 0; + + if (mix->hp_detect.addr) + detect |= read_audio_gpio(&mix->hp_detect); + return detect; +} + +static int tumbler_detect_lineout(struct snd_pmac *chip) +{ + struct pmac_tumbler *mix = chip->mixer_data; + int detect = 0; + + if (mix->line_detect.addr) + detect |= read_audio_gpio(&mix->line_detect); + return detect; +} + +static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify, + struct snd_kcontrol *sw) +{ + if (check_audio_gpio(gp) != val) { + write_audio_gpio(gp, val); + if (do_notify) + snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, + &sw->id); + } +} + +static struct work_struct device_change; +static struct snd_pmac *device_change_chip; + +static void device_change_handler(struct work_struct *work) +{ + struct snd_pmac *chip = device_change_chip; + struct pmac_tumbler *mix; + int headphone, lineout; + + if (!chip) + return; + + mix = chip->mixer_data; + if (snd_BUG_ON(!mix)) + return; + + headphone = tumbler_detect_headphone(chip); + lineout = tumbler_detect_lineout(chip); + + DBG("headphone: %d, lineout: %d\n", headphone, lineout); + + if (headphone || lineout) { + /* unmute headphone/lineout & mute speaker */ + if (headphone) + check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify, + chip->master_sw_ctl); + if (lineout && mix->line_mute.addr != 0) + check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify, + chip->lineout_sw_ctl); + if (mix->anded_reset) + msleep(10); + check_mute(chip, &mix->amp_mute, !IS_G4DA, mix->auto_mute_notify, + chip->speaker_sw_ctl); + } else { + /* unmute speaker, mute others */ + check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify, + chip->speaker_sw_ctl); + if (mix->anded_reset) + msleep(10); + check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify, + chip->master_sw_ctl); + if (mix->line_mute.addr != 0) + check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify, + chip->lineout_sw_ctl); + } + if (mix->auto_mute_notify) + snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, + &chip->hp_detect_ctl->id); + +#ifdef CONFIG_SND_POWERMAC_AUTO_DRC + mix->drc_enable = ! (headphone || lineout); + if (mix->auto_mute_notify) + snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, + &chip->drc_sw_ctl->id); + if (chip->model == PMAC_TUMBLER) + tumbler_set_drc(mix); + else + snapper_set_drc(mix); +#endif + + /* reset the master volume so the correct amplification is applied */ + tumbler_set_master_volume(mix); +} + +static void tumbler_update_automute(struct snd_pmac *chip, int do_notify) +{ + if (chip->auto_mute) { + struct pmac_tumbler *mix; + mix = chip->mixer_data; + if (snd_BUG_ON(!mix)) + return; + mix->auto_mute_notify = do_notify; + schedule_work(&device_change); + } +} +#endif /* PMAC_SUPPORT_AUTOMUTE */ + + +/* interrupt - headphone plug changed */ +static irqreturn_t headphone_intr(int irq, void *devid) +{ + struct snd_pmac *chip = devid; + if (chip->update_automute && chip->initialized) { + chip->update_automute(chip, 1); + return IRQ_HANDLED; + } + return IRQ_NONE; +} + +/* look for audio-gpio device */ +static struct device_node *find_audio_device(const char *name) +{ + struct device_node *gpiop; + struct device_node *np; + + gpiop = of_find_node_by_name(NULL, "gpio"); + if (! gpiop) + return NULL; + + for_each_child_of_node(gpiop, np) { + const char *property = of_get_property(np, "audio-gpio", NULL); + if (property && strcmp(property, name) == 0) + break; + } + of_node_put(gpiop); + return np; +} + +/* look for audio-gpio device */ +static struct device_node *find_compatible_audio_device(const char *name) +{ + struct device_node *gpiop; + struct device_node *np; + + gpiop = of_find_node_by_name(NULL, "gpio"); + if (!gpiop) + return NULL; + + for_each_child_of_node(gpiop, np) { + if (of_device_is_compatible(np, name)) + break; + } + of_node_put(gpiop); + return np; +} + +/* find an audio device and get its address */ +static long tumbler_find_device(const char *device, const char *platform, + struct pmac_gpio *gp, int is_compatible) +{ + struct device_node *node; + const u32 *base; + u32 addr; + long ret; + + if (is_compatible) + node = find_compatible_audio_device(device); + else + node = find_audio_device(device); + if (! node) { + DBG("(W) cannot find audio device %s !\n", device); + snd_printdd("cannot find device %s\n", device); + return -ENODEV; + } + + base = of_get_property(node, "AAPL,address", NULL); + if (! base) { + base = of_get_property(node, "reg", NULL); + if (!base) { + DBG("(E) cannot find address for device %s !\n", device); + snd_printd("cannot find address for device %s\n", device); + of_node_put(node); + return -ENODEV; + } + addr = *base; + if (addr < 0x50) + addr += 0x50; + } else + addr = *base; + + gp->addr = addr & 0x0000ffff; + /* Try to find the active state, default to 0 ! */ + base = of_get_property(node, "audio-gpio-active-state", NULL); + if (base) { + gp->active_state = *base; + gp->active_val = (*base) ? 0x5 : 0x4; + gp->inactive_val = (*base) ? 0x4 : 0x5; + } else { + const u32 *prop = NULL; + gp->active_state = IS_G4DA + && !strncmp(device, "keywest-gpio1", 13); + gp->active_val = 0x4; + gp->inactive_val = 0x5; + /* Here are some crude hacks to extract the GPIO polarity and + * open collector informations out of the do-platform script + * as we don't yet have an interpreter for these things + */ + if (platform) + prop = of_get_property(node, platform, NULL); + if (prop) { + if (prop[3] == 0x9 && prop[4] == 0x9) { + gp->active_val = 0xd; + gp->inactive_val = 0xc; + } + if (prop[3] == 0x1 && prop[4] == 0x1) { + gp->active_val = 0x5; + gp->inactive_val = 0x4; + } + } + } + + DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n", + device, gp->addr, gp->active_state); + + ret = irq_of_parse_and_map(node, 0); + of_node_put(node); + return ret; +} + +/* reset audio */ +static void tumbler_reset_audio(struct snd_pmac *chip) +{ + struct pmac_tumbler *mix = chip->mixer_data; + + if (mix->anded_reset) { + DBG("(I) codec anded reset !\n"); + write_audio_gpio(&mix->hp_mute, 0); + write_audio_gpio(&mix->amp_mute, 0); + msleep(200); + write_audio_gpio(&mix->hp_mute, 1); + write_audio_gpio(&mix->amp_mute, 1); + msleep(100); + write_audio_gpio(&mix->hp_mute, 0); + write_audio_gpio(&mix->amp_mute, 0); + msleep(100); + } else { + DBG("(I) codec normal reset !\n"); + + write_audio_gpio(&mix->audio_reset, 0); + msleep(200); + write_audio_gpio(&mix->audio_reset, 1); + msleep(100); + write_audio_gpio(&mix->audio_reset, 0); + msleep(100); + } +} + +#ifdef CONFIG_PM +/* suspend mixer */ +static void tumbler_suspend(struct snd_pmac *chip) +{ + struct pmac_tumbler *mix = chip->mixer_data; + + if (mix->headphone_irq >= 0) + disable_irq(mix->headphone_irq); + if (mix->lineout_irq >= 0) + disable_irq(mix->lineout_irq); + mix->save_master_switch[0] = mix->master_switch[0]; + mix->save_master_switch[1] = mix->master_switch[1]; + mix->save_master_vol[0] = mix->master_vol[0]; + mix->save_master_vol[1] = mix->master_vol[1]; + mix->master_switch[0] = mix->master_switch[1] = 0; + tumbler_set_master_volume(mix); + if (!mix->anded_reset) { + write_audio_gpio(&mix->amp_mute, 1); + write_audio_gpio(&mix->hp_mute, 1); + } + if (chip->model == PMAC_SNAPPER) { + mix->acs |= 1; + i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs); + } + if (mix->anded_reset) { + write_audio_gpio(&mix->amp_mute, 1); + write_audio_gpio(&mix->hp_mute, 1); + } else + write_audio_gpio(&mix->audio_reset, 1); +} + +/* resume mixer */ +static void tumbler_resume(struct snd_pmac *chip) +{ + struct pmac_tumbler *mix = chip->mixer_data; + + mix->acs &= ~1; + mix->master_switch[0] = mix->save_master_switch[0]; + mix->master_switch[1] = mix->save_master_switch[1]; + mix->master_vol[0] = mix->save_master_vol[0]; + mix->master_vol[1] = mix->save_master_vol[1]; + tumbler_reset_audio(chip); + if (mix->i2c.client && mix->i2c.init_client) { + if (mix->i2c.init_client(&mix->i2c) < 0) + printk(KERN_ERR "tumbler_init_client error\n"); + } else + printk(KERN_ERR "tumbler: i2c is not initialized\n"); + if (chip->model == PMAC_TUMBLER) { + tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info); + tumbler_set_mono_volume(mix, &tumbler_bass_vol_info); + tumbler_set_mono_volume(mix, &tumbler_treble_vol_info); + tumbler_set_drc(mix); + } else { + snapper_set_mix_vol(mix, VOL_IDX_PCM); + snapper_set_mix_vol(mix, VOL_IDX_PCM2); + snapper_set_mix_vol(mix, VOL_IDX_ADC); + tumbler_set_mono_volume(mix, &snapper_bass_vol_info); + tumbler_set_mono_volume(mix, &snapper_treble_vol_info); + snapper_set_drc(mix); + snapper_set_capture_source(mix); + } + tumbler_set_master_volume(mix); + if (chip->update_automute) + chip->update_automute(chip, 0); + if (mix->headphone_irq >= 0) { + unsigned char val; + + enable_irq(mix->headphone_irq); + /* activate headphone status interrupts */ + val = do_gpio_read(&mix->hp_detect); + do_gpio_write(&mix->hp_detect, val | 0x80); + } + if (mix->lineout_irq >= 0) + enable_irq(mix->lineout_irq); +} +#endif + +/* initialize tumbler */ +static int tumbler_init(struct snd_pmac *chip) +{ + int irq; + struct pmac_tumbler *mix = chip->mixer_data; + + if (tumbler_find_device("audio-hw-reset", + "platform-do-hw-reset", + &mix->audio_reset, 0) < 0) + tumbler_find_device("hw-reset", + "platform-do-hw-reset", + &mix->audio_reset, 1); + if (tumbler_find_device("amp-mute", + "platform-do-amp-mute", + &mix->amp_mute, 0) < 0) + tumbler_find_device("amp-mute", + "platform-do-amp-mute", + &mix->amp_mute, 1); + if (tumbler_find_device("headphone-mute", + "platform-do-headphone-mute", + &mix->hp_mute, 0) < 0) + tumbler_find_device("headphone-mute", + "platform-do-headphone-mute", + &mix->hp_mute, 1); + if (tumbler_find_device("line-output-mute", + "platform-do-lineout-mute", + &mix->line_mute, 0) < 0) + tumbler_find_device("line-output-mute", + "platform-do-lineout-mute", + &mix->line_mute, 1); + irq = tumbler_find_device("headphone-detect", + NULL, &mix->hp_detect, 0); + if (irq <= 0) + irq = tumbler_find_device("headphone-detect", + NULL, &mix->hp_detect, 1); + if (irq <= 0) + irq = tumbler_find_device("keywest-gpio15", + NULL, &mix->hp_detect, 1); + mix->headphone_irq = irq; + irq = tumbler_find_device("line-output-detect", + NULL, &mix->line_detect, 0); + if (irq <= 0) + irq = tumbler_find_device("line-output-detect", + NULL, &mix->line_detect, 1); + if (IS_G4DA && irq <= 0) + irq = tumbler_find_device("keywest-gpio16", + NULL, &mix->line_detect, 1); + mix->lineout_irq = irq; + + tumbler_reset_audio(chip); + + return 0; +} + +static void tumbler_cleanup(struct snd_pmac *chip) +{ + struct pmac_tumbler *mix = chip->mixer_data; + if (! mix) + return; + + if (mix->headphone_irq >= 0) + free_irq(mix->headphone_irq, chip); + if (mix->lineout_irq >= 0) + free_irq(mix->lineout_irq, chip); + tumbler_gpio_free(&mix->audio_reset); + tumbler_gpio_free(&mix->amp_mute); + tumbler_gpio_free(&mix->hp_mute); + tumbler_gpio_free(&mix->hp_detect); + snd_pmac_keywest_cleanup(&mix->i2c); + kfree(mix); + chip->mixer_data = NULL; +} + +/* exported */ +int snd_pmac_tumbler_init(struct snd_pmac *chip) +{ + int i, err; + struct pmac_tumbler *mix; + const u32 *paddr; + struct device_node *tas_node, *np; + char *chipname; + + request_module("i2c-powermac"); + + mix = kzalloc(sizeof(*mix), GFP_KERNEL); + if (! mix) + return -ENOMEM; + mix->headphone_irq = -1; + + chip->mixer_data = mix; + chip->mixer_free = tumbler_cleanup; + mix->anded_reset = 0; + mix->reset_on_sleep = 1; + + for_each_child_of_node(chip->node, np) { + if (of_node_name_eq(np, "sound")) { + if (of_property_read_bool(np, "has-anded-reset")) + mix->anded_reset = 1; + if (of_property_present(np, "layout-id")) + mix->reset_on_sleep = 0; + of_node_put(np); + break; + } + } + err = tumbler_init(chip); + if (err < 0) + return err; + + /* set up TAS */ + tas_node = of_find_node_by_name(NULL, "deq"); + if (tas_node == NULL) + tas_node = of_find_node_by_name(NULL, "codec"); + if (tas_node == NULL) + return -ENODEV; + + paddr = of_get_property(tas_node, "i2c-address", NULL); + if (paddr == NULL) + paddr = of_get_property(tas_node, "reg", NULL); + if (paddr) + mix->i2c.addr = (*paddr) >> 1; + else + mix->i2c.addr = TAS_I2C_ADDR; + of_node_put(tas_node); + + DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr); + + if (chip->model == PMAC_TUMBLER) { + mix->i2c.init_client = tumbler_init_client; + mix->i2c.name = "TAS3001c"; + chipname = "Tumbler"; + } else { + mix->i2c.init_client = snapper_init_client; + mix->i2c.name = "TAS3004"; + chipname = "Snapper"; + } + + err = snd_pmac_keywest_init(&mix->i2c); + if (err < 0) + return err; + + /* + * build mixers + */ + sprintf(chip->card->mixername, "PowerMac %s", chipname); + + if (chip->model == PMAC_TUMBLER) { + for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) { + err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip)); + if (err < 0) + return err; + } + } else { + for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) { + err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip)); + if (err < 0) + return err; + } + } + chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip); + err = snd_ctl_add(chip->card, chip->master_sw_ctl); + if (err < 0) + return err; + chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip); + err = snd_ctl_add(chip->card, chip->speaker_sw_ctl); + if (err < 0) + return err; + if (mix->line_mute.addr != 0) { + chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip); + err = snd_ctl_add(chip->card, chip->lineout_sw_ctl); + if (err < 0) + return err; + } + chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip); + err = snd_ctl_add(chip->card, chip->drc_sw_ctl); + if (err < 0) + return err; + + /* set initial DRC range to 60% */ + if (chip->model == PMAC_TUMBLER) + mix->drc_range = (TAS3001_DRC_MAX * 6) / 10; + else + mix->drc_range = (TAS3004_DRC_MAX * 6) / 10; + mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */ + if (chip->model == PMAC_TUMBLER) + tumbler_set_drc(mix); + else + snapper_set_drc(mix); + +#ifdef CONFIG_PM + chip->suspend = tumbler_suspend; + chip->resume = tumbler_resume; +#endif + + INIT_WORK(&device_change, device_change_handler); + device_change_chip = chip; + +#ifdef PMAC_SUPPORT_AUTOMUTE + if (mix->headphone_irq >= 0 || mix->lineout_irq >= 0) { + err = snd_pmac_add_automute(chip); + if (err < 0) + return err; + } + chip->detect_headphone = tumbler_detect_headphone; + chip->update_automute = tumbler_update_automute; + tumbler_update_automute(chip, 0); /* update the status only */ + + /* activate headphone status interrupts */ + if (mix->headphone_irq >= 0) { + unsigned char val; + err = request_irq(mix->headphone_irq, headphone_intr, 0, + "Sound Headphone Detection", chip); + if (err < 0) + return 0; + /* activate headphone status interrupts */ + val = do_gpio_read(&mix->hp_detect); + do_gpio_write(&mix->hp_detect, val | 0x80); + } + if (mix->lineout_irq >= 0) { + unsigned char val; + err = request_irq(mix->lineout_irq, headphone_intr, 0, + "Sound Lineout Detection", chip); + if (err < 0) + return 0; + /* activate headphone status interrupts */ + val = do_gpio_read(&mix->line_detect); + do_gpio_write(&mix->line_detect, val | 0x80); + } +#endif + + return 0; +} |