diff options
Diffstat (limited to 'kernel/sound/i2c/other')
| -rw-r--r-- | kernel/sound/i2c/other/Makefile | 15 | ||||
| -rw-r--r-- | kernel/sound/i2c/other/ak4113.c | 657 | ||||
| -rw-r--r-- | kernel/sound/i2c/other/ak4114.c | 642 | ||||
| -rw-r--r-- | kernel/sound/i2c/other/ak4117.c | 548 | ||||
| -rw-r--r-- | kernel/sound/i2c/other/ak4xxx-adda.c | 929 | ||||
| -rw-r--r-- | kernel/sound/i2c/other/pt2258.c | 227 |
6 files changed, 3018 insertions, 0 deletions
diff --git a/kernel/sound/i2c/other/Makefile b/kernel/sound/i2c/other/Makefile new file mode 100644 index 000000000..5526b03b9 --- /dev/null +++ b/kernel/sound/i2c/other/Makefile @@ -0,0 +1,15 @@ +# +# Makefile for ALSA +# Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz> +# + +snd-ak4114-objs := ak4114.o +snd-ak4117-objs := ak4117.o +snd-ak4113-objs := ak4113.o +snd-ak4xxx-adda-objs := ak4xxx-adda.o +snd-pt2258-objs := pt2258.o + +# Module Dependency +obj-$(CONFIG_SND_PDAUDIOCF) += snd-ak4117.o +obj-$(CONFIG_SND_ICE1712) += snd-ak4xxx-adda.o +obj-$(CONFIG_SND_ICE1724) += snd-ak4114.o snd-ak4113.o snd-ak4xxx-adda.o snd-pt2258.o diff --git a/kernel/sound/i2c/other/ak4113.c b/kernel/sound/i2c/other/ak4113.c new file mode 100644 index 000000000..2183e9eba --- /dev/null +++ b/kernel/sound/i2c/other/ak4113.c @@ -0,0 +1,657 @@ +/* + * Routines for control of the AK4113 via I2C/4-wire serial interface + * IEC958 (S/PDIF) receiver by Asahi Kasei + * Copyright (c) by Jaroslav Kysela <perex@perex.cz> + * Copyright (c) by Pavel Hofman <pavel.hofman@ivitera.com> + * + * + * 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 <linux/slab.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/pcm.h> +#include <sound/ak4113.h> +#include <sound/asoundef.h> +#include <sound/info.h> + +MODULE_AUTHOR("Pavel Hofman <pavel.hofman@ivitera.com>"); +MODULE_DESCRIPTION("AK4113 IEC958 (S/PDIF) receiver by Asahi Kasei"); +MODULE_LICENSE("GPL"); + +#define AK4113_ADDR 0x00 /* fixed address */ + +static void ak4113_stats(struct work_struct *work); +static void ak4113_init_regs(struct ak4113 *chip); + + +static void reg_write(struct ak4113 *ak4113, unsigned char reg, + unsigned char val) +{ + ak4113->write(ak4113->private_data, reg, val); + if (reg < sizeof(ak4113->regmap)) + ak4113->regmap[reg] = val; +} + +static inline unsigned char reg_read(struct ak4113 *ak4113, unsigned char reg) +{ + return ak4113->read(ak4113->private_data, reg); +} + +static void snd_ak4113_free(struct ak4113 *chip) +{ + atomic_inc(&chip->wq_processing); /* don't schedule new work */ + cancel_delayed_work_sync(&chip->work); + kfree(chip); +} + +static int snd_ak4113_dev_free(struct snd_device *device) +{ + struct ak4113 *chip = device->device_data; + snd_ak4113_free(chip); + return 0; +} + +int snd_ak4113_create(struct snd_card *card, ak4113_read_t *read, + ak4113_write_t *write, const unsigned char *pgm, + void *private_data, struct ak4113 **r_ak4113) +{ + struct ak4113 *chip; + int err; + unsigned char reg; + static struct snd_device_ops ops = { + .dev_free = snd_ak4113_dev_free, + }; + + chip = kzalloc(sizeof(*chip), GFP_KERNEL); + if (chip == NULL) + return -ENOMEM; + spin_lock_init(&chip->lock); + chip->card = card; + chip->read = read; + chip->write = write; + chip->private_data = private_data; + INIT_DELAYED_WORK(&chip->work, ak4113_stats); + atomic_set(&chip->wq_processing, 0); + mutex_init(&chip->reinit_mutex); + + for (reg = 0; reg < AK4113_WRITABLE_REGS ; reg++) + chip->regmap[reg] = pgm[reg]; + ak4113_init_regs(chip); + + chip->rcs0 = reg_read(chip, AK4113_REG_RCS0) & ~(AK4113_QINT | + AK4113_CINT | AK4113_STC); + chip->rcs1 = reg_read(chip, AK4113_REG_RCS1); + chip->rcs2 = reg_read(chip, AK4113_REG_RCS2); + err = snd_device_new(card, SNDRV_DEV_CODEC, chip, &ops); + if (err < 0) + goto __fail; + + if (r_ak4113) + *r_ak4113 = chip; + return 0; + +__fail: + snd_ak4113_free(chip); + return err; +} +EXPORT_SYMBOL_GPL(snd_ak4113_create); + +void snd_ak4113_reg_write(struct ak4113 *chip, unsigned char reg, + unsigned char mask, unsigned char val) +{ + if (reg >= AK4113_WRITABLE_REGS) + return; + reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val); +} +EXPORT_SYMBOL_GPL(snd_ak4113_reg_write); + +static void ak4113_init_regs(struct ak4113 *chip) +{ + unsigned char old = chip->regmap[AK4113_REG_PWRDN], reg; + + /* bring the chip to reset state and powerdown state */ + reg_write(chip, AK4113_REG_PWRDN, old & ~(AK4113_RST|AK4113_PWN)); + udelay(200); + /* release reset, but leave powerdown */ + reg_write(chip, AK4113_REG_PWRDN, (old | AK4113_RST) & ~AK4113_PWN); + udelay(200); + for (reg = 1; reg < AK4113_WRITABLE_REGS; reg++) + reg_write(chip, reg, chip->regmap[reg]); + /* release powerdown, everything is initialized now */ + reg_write(chip, AK4113_REG_PWRDN, old | AK4113_RST | AK4113_PWN); +} + +void snd_ak4113_reinit(struct ak4113 *chip) +{ + if (atomic_inc_return(&chip->wq_processing) == 1) + cancel_delayed_work_sync(&chip->work); + mutex_lock(&chip->reinit_mutex); + ak4113_init_regs(chip); + mutex_unlock(&chip->reinit_mutex); + /* bring up statistics / event queing */ + if (atomic_dec_and_test(&chip->wq_processing)) + schedule_delayed_work(&chip->work, HZ / 10); +} +EXPORT_SYMBOL_GPL(snd_ak4113_reinit); + +static unsigned int external_rate(unsigned char rcs1) +{ + switch (rcs1 & (AK4113_FS0|AK4113_FS1|AK4113_FS2|AK4113_FS3)) { + case AK4113_FS_8000HZ: + return 8000; + case AK4113_FS_11025HZ: + return 11025; + case AK4113_FS_16000HZ: + return 16000; + case AK4113_FS_22050HZ: + return 22050; + case AK4113_FS_24000HZ: + return 24000; + case AK4113_FS_32000HZ: + return 32000; + case AK4113_FS_44100HZ: + return 44100; + case AK4113_FS_48000HZ: + return 48000; + case AK4113_FS_64000HZ: + return 64000; + case AK4113_FS_88200HZ: + return 88200; + case AK4113_FS_96000HZ: + return 96000; + case AK4113_FS_176400HZ: + return 176400; + case AK4113_FS_192000HZ: + return 192000; + default: + return 0; + } +} + +static int snd_ak4113_in_error_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = LONG_MAX; + return 0; +} + +static int snd_ak4113_in_error_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4113 *chip = snd_kcontrol_chip(kcontrol); + long *ptr; + + spin_lock_irq(&chip->lock); + ptr = (long *)(((char *)chip) + kcontrol->private_value); + ucontrol->value.integer.value[0] = *ptr; + *ptr = 0; + spin_unlock_irq(&chip->lock); + return 0; +} + +#define snd_ak4113_in_bit_info snd_ctl_boolean_mono_info + +static int snd_ak4113_in_bit_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4113 *chip = snd_kcontrol_chip(kcontrol); + unsigned char reg = kcontrol->private_value & 0xff; + unsigned char bit = (kcontrol->private_value >> 8) & 0xff; + unsigned char inv = (kcontrol->private_value >> 31) & 1; + + ucontrol->value.integer.value[0] = + ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv; + return 0; +} + +static int snd_ak4113_rx_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 5; + return 0; +} + +static int snd_ak4113_rx_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4113 *chip = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = + (AK4113_IPS(chip->regmap[AK4113_REG_IO1])); + return 0; +} + +static int snd_ak4113_rx_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4113 *chip = snd_kcontrol_chip(kcontrol); + int change; + u8 old_val; + + spin_lock_irq(&chip->lock); + old_val = chip->regmap[AK4113_REG_IO1]; + change = ucontrol->value.integer.value[0] != AK4113_IPS(old_val); + if (change) + reg_write(chip, AK4113_REG_IO1, + (old_val & (~AK4113_IPS(0xff))) | + (AK4113_IPS(ucontrol->value.integer.value[0]))); + spin_unlock_irq(&chip->lock); + return change; +} + +static int snd_ak4113_rate_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 192000; + return 0; +} + +static int snd_ak4113_rate_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4113 *chip = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = external_rate(reg_read(chip, + AK4113_REG_RCS1)); + return 0; +} + +static int snd_ak4113_spdif_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int snd_ak4113_spdif_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4113 *chip = snd_kcontrol_chip(kcontrol); + unsigned i; + + for (i = 0; i < AK4113_REG_RXCSB_SIZE; i++) + ucontrol->value.iec958.status[i] = reg_read(chip, + AK4113_REG_RXCSB0 + i); + return 0; +} + +static int snd_ak4113_spdif_mask_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int snd_ak4113_spdif_mask_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + memset(ucontrol->value.iec958.status, 0xff, AK4113_REG_RXCSB_SIZE); + return 0; +} + +static int snd_ak4113_spdif_pinfo(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 0xffff; + uinfo->count = 4; + return 0; +} + +static int snd_ak4113_spdif_pget(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4113 *chip = snd_kcontrol_chip(kcontrol); + unsigned short tmp; + + ucontrol->value.integer.value[0] = 0xf8f2; + ucontrol->value.integer.value[1] = 0x4e1f; + tmp = reg_read(chip, AK4113_REG_Pc0) | + (reg_read(chip, AK4113_REG_Pc1) << 8); + ucontrol->value.integer.value[2] = tmp; + tmp = reg_read(chip, AK4113_REG_Pd0) | + (reg_read(chip, AK4113_REG_Pd1) << 8); + ucontrol->value.integer.value[3] = tmp; + return 0; +} + +static int snd_ak4113_spdif_qinfo(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; + uinfo->count = AK4113_REG_QSUB_SIZE; + return 0; +} + +static int snd_ak4113_spdif_qget(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4113 *chip = snd_kcontrol_chip(kcontrol); + unsigned i; + + for (i = 0; i < AK4113_REG_QSUB_SIZE; i++) + ucontrol->value.bytes.data[i] = reg_read(chip, + AK4113_REG_QSUB_ADDR + i); + return 0; +} + +/* Don't forget to change AK4113_CONTROLS define!!! */ +static struct snd_kcontrol_new snd_ak4113_iec958_controls[] = { +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Parity Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_in_error_info, + .get = snd_ak4113_in_error_get, + .private_value = offsetof(struct ak4113, parity_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 V-Bit Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_in_error_info, + .get = snd_ak4113_in_error_get, + .private_value = offsetof(struct ak4113, v_bit_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 C-CRC Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_in_error_info, + .get = snd_ak4113_in_error_get, + .private_value = offsetof(struct ak4113, ccrc_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Q-CRC Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_in_error_info, + .get = snd_ak4113_in_error_get, + .private_value = offsetof(struct ak4113, qcrc_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 External Rate", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_rate_info, + .get = snd_ak4113_rate_get, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, MASK), + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = snd_ak4113_spdif_mask_info, + .get = snd_ak4113_spdif_mask_get, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT), + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_spdif_info, + .get = snd_ak4113_spdif_get, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Preamble Capture Default", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_spdif_pinfo, + .get = snd_ak4113_spdif_pget, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Q-subcode Capture Default", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_spdif_qinfo, + .get = snd_ak4113_spdif_qget, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Audio", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_in_bit_info, + .get = snd_ak4113_in_bit_get, + .private_value = (1<<31) | (1<<8) | AK4113_REG_RCS0, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Non-PCM Bitstream", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_in_bit_info, + .get = snd_ak4113_in_bit_get, + .private_value = (0<<8) | AK4113_REG_RCS1, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 DTS Bitstream", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4113_in_bit_info, + .get = snd_ak4113_in_bit_get, + .private_value = (1<<8) | AK4113_REG_RCS1, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "AK4113 Input Select", + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_WRITE, + .info = snd_ak4113_rx_info, + .get = snd_ak4113_rx_get, + .put = snd_ak4113_rx_put, +} +}; + +static void snd_ak4113_proc_regs_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct ak4113 *ak4113 = entry->private_data; + int reg, val; + /* all ak4113 registers 0x00 - 0x1c */ + for (reg = 0; reg < 0x1d; reg++) { + val = reg_read(ak4113, reg); + snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val); + } +} + +static void snd_ak4113_proc_init(struct ak4113 *ak4113) +{ + struct snd_info_entry *entry; + if (!snd_card_proc_new(ak4113->card, "ak4113", &entry)) + snd_info_set_text_ops(entry, ak4113, snd_ak4113_proc_regs_read); +} + +int snd_ak4113_build(struct ak4113 *ak4113, + struct snd_pcm_substream *cap_substream) +{ + struct snd_kcontrol *kctl; + unsigned int idx; + int err; + + if (snd_BUG_ON(!cap_substream)) + return -EINVAL; + ak4113->substream = cap_substream; + for (idx = 0; idx < AK4113_CONTROLS; idx++) { + kctl = snd_ctl_new1(&snd_ak4113_iec958_controls[idx], ak4113); + if (kctl == NULL) + return -ENOMEM; + kctl->id.device = cap_substream->pcm->device; + kctl->id.subdevice = cap_substream->number; + err = snd_ctl_add(ak4113->card, kctl); + if (err < 0) + return err; + ak4113->kctls[idx] = kctl; + } + snd_ak4113_proc_init(ak4113); + /* trigger workq */ + schedule_delayed_work(&ak4113->work, HZ / 10); + return 0; +} +EXPORT_SYMBOL_GPL(snd_ak4113_build); + +int snd_ak4113_external_rate(struct ak4113 *ak4113) +{ + unsigned char rcs1; + + rcs1 = reg_read(ak4113, AK4113_REG_RCS1); + return external_rate(rcs1); +} +EXPORT_SYMBOL_GPL(snd_ak4113_external_rate); + +int snd_ak4113_check_rate_and_errors(struct ak4113 *ak4113, unsigned int flags) +{ + struct snd_pcm_runtime *runtime = + ak4113->substream ? ak4113->substream->runtime : NULL; + unsigned long _flags; + int res = 0; + unsigned char rcs0, rcs1, rcs2; + unsigned char c0, c1; + + rcs1 = reg_read(ak4113, AK4113_REG_RCS1); + if (flags & AK4113_CHECK_NO_STAT) + goto __rate; + rcs0 = reg_read(ak4113, AK4113_REG_RCS0); + rcs2 = reg_read(ak4113, AK4113_REG_RCS2); + spin_lock_irqsave(&ak4113->lock, _flags); + if (rcs0 & AK4113_PAR) + ak4113->parity_errors++; + if (rcs0 & AK4113_V) + ak4113->v_bit_errors++; + if (rcs2 & AK4113_CCRC) + ak4113->ccrc_errors++; + if (rcs2 & AK4113_QCRC) + ak4113->qcrc_errors++; + c0 = (ak4113->rcs0 & (AK4113_QINT | AK4113_CINT | AK4113_STC | + AK4113_AUDION | AK4113_AUTO | AK4113_UNLCK)) ^ + (rcs0 & (AK4113_QINT | AK4113_CINT | AK4113_STC | + AK4113_AUDION | AK4113_AUTO | AK4113_UNLCK)); + c1 = (ak4113->rcs1 & (AK4113_DTSCD | AK4113_NPCM | AK4113_PEM | + AK4113_DAT | 0xf0)) ^ + (rcs1 & (AK4113_DTSCD | AK4113_NPCM | AK4113_PEM | + AK4113_DAT | 0xf0)); + ak4113->rcs0 = rcs0 & ~(AK4113_QINT | AK4113_CINT | AK4113_STC); + ak4113->rcs1 = rcs1; + ak4113->rcs2 = rcs2; + spin_unlock_irqrestore(&ak4113->lock, _flags); + + if (rcs0 & AK4113_PAR) + snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4113->kctls[0]->id); + if (rcs0 & AK4113_V) + snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4113->kctls[1]->id); + if (rcs2 & AK4113_CCRC) + snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4113->kctls[2]->id); + if (rcs2 & AK4113_QCRC) + snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4113->kctls[3]->id); + + /* rate change */ + if (c1 & 0xf0) + snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4113->kctls[4]->id); + + if ((c1 & AK4113_PEM) | (c0 & AK4113_CINT)) + snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4113->kctls[6]->id); + if (c0 & AK4113_QINT) + snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4113->kctls[8]->id); + + if (c0 & AK4113_AUDION) + snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4113->kctls[9]->id); + if (c1 & AK4113_NPCM) + snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4113->kctls[10]->id); + if (c1 & AK4113_DTSCD) + snd_ctl_notify(ak4113->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4113->kctls[11]->id); + + if (ak4113->change_callback && (c0 | c1) != 0) + ak4113->change_callback(ak4113, c0, c1); + +__rate: + /* compare rate */ + res = external_rate(rcs1); + if (!(flags & AK4113_CHECK_NO_RATE) && runtime && + (runtime->rate != res)) { + snd_pcm_stream_lock_irqsave(ak4113->substream, _flags); + if (snd_pcm_running(ak4113->substream)) { + /*printk(KERN_DEBUG "rate changed (%i <- %i)\n", + * runtime->rate, res); */ + snd_pcm_stop(ak4113->substream, + SNDRV_PCM_STATE_DRAINING); + wake_up(&runtime->sleep); + res = 1; + } + snd_pcm_stream_unlock_irqrestore(ak4113->substream, _flags); + } + return res; +} +EXPORT_SYMBOL_GPL(snd_ak4113_check_rate_and_errors); + +static void ak4113_stats(struct work_struct *work) +{ + struct ak4113 *chip = container_of(work, struct ak4113, work.work); + + if (atomic_inc_return(&chip->wq_processing) == 1) + snd_ak4113_check_rate_and_errors(chip, chip->check_flags); + + if (atomic_dec_and_test(&chip->wq_processing)) + schedule_delayed_work(&chip->work, HZ / 10); +} + +#ifdef CONFIG_PM +void snd_ak4113_suspend(struct ak4113 *chip) +{ + atomic_inc(&chip->wq_processing); /* don't schedule new work */ + cancel_delayed_work_sync(&chip->work); +} +EXPORT_SYMBOL(snd_ak4113_suspend); + +void snd_ak4113_resume(struct ak4113 *chip) +{ + atomic_dec(&chip->wq_processing); + snd_ak4113_reinit(chip); +} +EXPORT_SYMBOL(snd_ak4113_resume); +#endif diff --git a/kernel/sound/i2c/other/ak4114.c b/kernel/sound/i2c/other/ak4114.c new file mode 100644 index 000000000..5a4cf3fab --- /dev/null +++ b/kernel/sound/i2c/other/ak4114.c @@ -0,0 +1,642 @@ +/* + * Routines for control of the AK4114 via I2C and 4-wire serial interface + * IEC958 (S/PDIF) receiver by Asahi Kasei + * Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/slab.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/pcm.h> +#include <sound/ak4114.h> +#include <sound/asoundef.h> +#include <sound/info.h> + +MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); +MODULE_DESCRIPTION("AK4114 IEC958 (S/PDIF) receiver by Asahi Kasei"); +MODULE_LICENSE("GPL"); + +#define AK4114_ADDR 0x00 /* fixed address */ + +static void ak4114_stats(struct work_struct *work); +static void ak4114_init_regs(struct ak4114 *chip); + +static void reg_write(struct ak4114 *ak4114, unsigned char reg, unsigned char val) +{ + ak4114->write(ak4114->private_data, reg, val); + if (reg <= AK4114_REG_INT1_MASK) + ak4114->regmap[reg] = val; + else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4) + ak4114->txcsb[reg-AK4114_REG_TXCSB0] = val; +} + +static inline unsigned char reg_read(struct ak4114 *ak4114, unsigned char reg) +{ + return ak4114->read(ak4114->private_data, reg); +} + +#if 0 +static void reg_dump(struct ak4114 *ak4114) +{ + int i; + + printk(KERN_DEBUG "AK4114 REG DUMP:\n"); + for (i = 0; i < 0x20; i++) + printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4114, i), i < ARRAY_SIZE(ak4114->regmap) ? ak4114->regmap[i] : 0); +} +#endif + +static void snd_ak4114_free(struct ak4114 *chip) +{ + atomic_inc(&chip->wq_processing); /* don't schedule new work */ + cancel_delayed_work_sync(&chip->work); + kfree(chip); +} + +static int snd_ak4114_dev_free(struct snd_device *device) +{ + struct ak4114 *chip = device->device_data; + snd_ak4114_free(chip); + return 0; +} + +int snd_ak4114_create(struct snd_card *card, + ak4114_read_t *read, ak4114_write_t *write, + const unsigned char pgm[6], const unsigned char txcsb[5], + void *private_data, struct ak4114 **r_ak4114) +{ + struct ak4114 *chip; + int err = 0; + unsigned char reg; + static struct snd_device_ops ops = { + .dev_free = snd_ak4114_dev_free, + }; + + chip = kzalloc(sizeof(*chip), GFP_KERNEL); + if (chip == NULL) + return -ENOMEM; + spin_lock_init(&chip->lock); + chip->card = card; + chip->read = read; + chip->write = write; + chip->private_data = private_data; + INIT_DELAYED_WORK(&chip->work, ak4114_stats); + atomic_set(&chip->wq_processing, 0); + mutex_init(&chip->reinit_mutex); + + for (reg = 0; reg < 6; reg++) + chip->regmap[reg] = pgm[reg]; + for (reg = 0; reg < 5; reg++) + chip->txcsb[reg] = txcsb[reg]; + + ak4114_init_regs(chip); + + chip->rcs0 = reg_read(chip, AK4114_REG_RCS0) & ~(AK4114_QINT | AK4114_CINT); + chip->rcs1 = reg_read(chip, AK4114_REG_RCS1); + + if ((err = snd_device_new(card, SNDRV_DEV_CODEC, chip, &ops)) < 0) + goto __fail; + + if (r_ak4114) + *r_ak4114 = chip; + return 0; + + __fail: + snd_ak4114_free(chip); + return err < 0 ? err : -EIO; +} +EXPORT_SYMBOL(snd_ak4114_create); + +void snd_ak4114_reg_write(struct ak4114 *chip, unsigned char reg, unsigned char mask, unsigned char val) +{ + if (reg <= AK4114_REG_INT1_MASK) + reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val); + else if (reg >= AK4114_REG_TXCSB0 && reg <= AK4114_REG_TXCSB4) + reg_write(chip, reg, + (chip->txcsb[reg-AK4114_REG_TXCSB0] & ~mask) | val); +} +EXPORT_SYMBOL(snd_ak4114_reg_write); + +static void ak4114_init_regs(struct ak4114 *chip) +{ + unsigned char old = chip->regmap[AK4114_REG_PWRDN], reg; + + /* bring the chip to reset state and powerdown state */ + reg_write(chip, AK4114_REG_PWRDN, old & ~(AK4114_RST|AK4114_PWN)); + udelay(200); + /* release reset, but leave powerdown */ + reg_write(chip, AK4114_REG_PWRDN, (old | AK4114_RST) & ~AK4114_PWN); + udelay(200); + for (reg = 1; reg < 6; reg++) + reg_write(chip, reg, chip->regmap[reg]); + for (reg = 0; reg < 5; reg++) + reg_write(chip, reg + AK4114_REG_TXCSB0, chip->txcsb[reg]); + /* release powerdown, everything is initialized now */ + reg_write(chip, AK4114_REG_PWRDN, old | AK4114_RST | AK4114_PWN); +} + +void snd_ak4114_reinit(struct ak4114 *chip) +{ + if (atomic_inc_return(&chip->wq_processing) == 1) + cancel_delayed_work_sync(&chip->work); + mutex_lock(&chip->reinit_mutex); + ak4114_init_regs(chip); + mutex_unlock(&chip->reinit_mutex); + /* bring up statistics / event queing */ + if (atomic_dec_and_test(&chip->wq_processing)) + schedule_delayed_work(&chip->work, HZ / 10); +} +EXPORT_SYMBOL(snd_ak4114_reinit); + +static unsigned int external_rate(unsigned char rcs1) +{ + switch (rcs1 & (AK4114_FS0|AK4114_FS1|AK4114_FS2|AK4114_FS3)) { + case AK4114_FS_32000HZ: return 32000; + case AK4114_FS_44100HZ: return 44100; + case AK4114_FS_48000HZ: return 48000; + case AK4114_FS_88200HZ: return 88200; + case AK4114_FS_96000HZ: return 96000; + case AK4114_FS_176400HZ: return 176400; + case AK4114_FS_192000HZ: return 192000; + default: return 0; + } +} + +static int snd_ak4114_in_error_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = LONG_MAX; + return 0; +} + +static int snd_ak4114_in_error_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4114 *chip = snd_kcontrol_chip(kcontrol); + long *ptr; + + spin_lock_irq(&chip->lock); + ptr = (long *)(((char *)chip) + kcontrol->private_value); + ucontrol->value.integer.value[0] = *ptr; + *ptr = 0; + spin_unlock_irq(&chip->lock); + return 0; +} + +#define snd_ak4114_in_bit_info snd_ctl_boolean_mono_info + +static int snd_ak4114_in_bit_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4114 *chip = snd_kcontrol_chip(kcontrol); + unsigned char reg = kcontrol->private_value & 0xff; + unsigned char bit = (kcontrol->private_value >> 8) & 0xff; + unsigned char inv = (kcontrol->private_value >> 31) & 1; + + ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv; + return 0; +} + +static int snd_ak4114_rate_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 192000; + return 0; +} + +static int snd_ak4114_rate_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4114 *chip = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4114_REG_RCS1)); + return 0; +} + +static int snd_ak4114_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int snd_ak4114_spdif_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4114 *chip = snd_kcontrol_chip(kcontrol); + unsigned i; + + for (i = 0; i < AK4114_REG_RXCSB_SIZE; i++) + ucontrol->value.iec958.status[i] = reg_read(chip, AK4114_REG_RXCSB0 + i); + return 0; +} + +static int snd_ak4114_spdif_playback_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4114 *chip = snd_kcontrol_chip(kcontrol); + unsigned i; + + for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++) + ucontrol->value.iec958.status[i] = chip->txcsb[i]; + return 0; +} + +static int snd_ak4114_spdif_playback_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4114 *chip = snd_kcontrol_chip(kcontrol); + unsigned i; + + for (i = 0; i < AK4114_REG_TXCSB_SIZE; i++) + reg_write(chip, AK4114_REG_TXCSB0 + i, ucontrol->value.iec958.status[i]); + return 0; +} + +static int snd_ak4114_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int snd_ak4114_spdif_mask_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + memset(ucontrol->value.iec958.status, 0xff, AK4114_REG_RXCSB_SIZE); + return 0; +} + +static int snd_ak4114_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 0xffff; + uinfo->count = 4; + return 0; +} + +static int snd_ak4114_spdif_pget(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4114 *chip = snd_kcontrol_chip(kcontrol); + unsigned short tmp; + + ucontrol->value.integer.value[0] = 0xf8f2; + ucontrol->value.integer.value[1] = 0x4e1f; + tmp = reg_read(chip, AK4114_REG_Pc0) | (reg_read(chip, AK4114_REG_Pc1) << 8); + ucontrol->value.integer.value[2] = tmp; + tmp = reg_read(chip, AK4114_REG_Pd0) | (reg_read(chip, AK4114_REG_Pd1) << 8); + ucontrol->value.integer.value[3] = tmp; + return 0; +} + +static int snd_ak4114_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; + uinfo->count = AK4114_REG_QSUB_SIZE; + return 0; +} + +static int snd_ak4114_spdif_qget(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4114 *chip = snd_kcontrol_chip(kcontrol); + unsigned i; + + for (i = 0; i < AK4114_REG_QSUB_SIZE; i++) + ucontrol->value.bytes.data[i] = reg_read(chip, AK4114_REG_QSUB_ADDR + i); + return 0; +} + +/* Don't forget to change AK4114_CONTROLS define!!! */ +static struct snd_kcontrol_new snd_ak4114_iec958_controls[] = { +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Parity Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_in_error_info, + .get = snd_ak4114_in_error_get, + .private_value = offsetof(struct ak4114, parity_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 V-Bit Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_in_error_info, + .get = snd_ak4114_in_error_get, + .private_value = offsetof(struct ak4114, v_bit_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 C-CRC Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_in_error_info, + .get = snd_ak4114_in_error_get, + .private_value = offsetof(struct ak4114, ccrc_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Q-CRC Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_in_error_info, + .get = snd_ak4114_in_error_get, + .private_value = offsetof(struct ak4114, qcrc_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 External Rate", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_rate_info, + .get = snd_ak4114_rate_get, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK), + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = snd_ak4114_spdif_mask_info, + .get = snd_ak4114_spdif_mask_get, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_spdif_info, + .get = snd_ak4114_spdif_playback_get, + .put = snd_ak4114_spdif_playback_put, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK), + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = snd_ak4114_spdif_mask_info, + .get = snd_ak4114_spdif_mask_get, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT), + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_spdif_info, + .get = snd_ak4114_spdif_get, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Preamble Capture Default", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_spdif_pinfo, + .get = snd_ak4114_spdif_pget, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Q-subcode Capture Default", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_spdif_qinfo, + .get = snd_ak4114_spdif_qget, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Audio", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_in_bit_info, + .get = snd_ak4114_in_bit_get, + .private_value = (1<<31) | (1<<8) | AK4114_REG_RCS0, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Non-PCM Bitstream", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_in_bit_info, + .get = snd_ak4114_in_bit_get, + .private_value = (6<<8) | AK4114_REG_RCS0, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 DTS Bitstream", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_in_bit_info, + .get = snd_ak4114_in_bit_get, + .private_value = (3<<8) | AK4114_REG_RCS0, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 PPL Lock Status", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4114_in_bit_info, + .get = snd_ak4114_in_bit_get, + .private_value = (1<<31) | (4<<8) | AK4114_REG_RCS0, +} +}; + + +static void snd_ak4114_proc_regs_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct ak4114 *ak4114 = entry->private_data; + int reg, val; + /* all ak4114 registers 0x00 - 0x1f */ + for (reg = 0; reg < 0x20; reg++) { + val = reg_read(ak4114, reg); + snd_iprintf(buffer, "0x%02x = 0x%02x\n", reg, val); + } +} + +static void snd_ak4114_proc_init(struct ak4114 *ak4114) +{ + struct snd_info_entry *entry; + if (!snd_card_proc_new(ak4114->card, "ak4114", &entry)) + snd_info_set_text_ops(entry, ak4114, snd_ak4114_proc_regs_read); +} + +int snd_ak4114_build(struct ak4114 *ak4114, + struct snd_pcm_substream *ply_substream, + struct snd_pcm_substream *cap_substream) +{ + struct snd_kcontrol *kctl; + unsigned int idx; + int err; + + if (snd_BUG_ON(!cap_substream)) + return -EINVAL; + ak4114->playback_substream = ply_substream; + ak4114->capture_substream = cap_substream; + for (idx = 0; idx < AK4114_CONTROLS; idx++) { + kctl = snd_ctl_new1(&snd_ak4114_iec958_controls[idx], ak4114); + if (kctl == NULL) + return -ENOMEM; + if (strstr(kctl->id.name, "Playback")) { + if (ply_substream == NULL) { + snd_ctl_free_one(kctl); + ak4114->kctls[idx] = NULL; + continue; + } + kctl->id.device = ply_substream->pcm->device; + kctl->id.subdevice = ply_substream->number; + } else { + kctl->id.device = cap_substream->pcm->device; + kctl->id.subdevice = cap_substream->number; + } + err = snd_ctl_add(ak4114->card, kctl); + if (err < 0) + return err; + ak4114->kctls[idx] = kctl; + } + snd_ak4114_proc_init(ak4114); + /* trigger workq */ + schedule_delayed_work(&ak4114->work, HZ / 10); + return 0; +} +EXPORT_SYMBOL(snd_ak4114_build); + +/* notify kcontrols if any parameters are changed */ +static void ak4114_notify(struct ak4114 *ak4114, + unsigned char rcs0, unsigned char rcs1, + unsigned char c0, unsigned char c1) +{ + if (!ak4114->kctls[0]) + return; + + if (rcs0 & AK4114_PAR) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[0]->id); + if (rcs0 & AK4114_V) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[1]->id); + if (rcs1 & AK4114_CCRC) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[2]->id); + if (rcs1 & AK4114_QCRC) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[3]->id); + + /* rate change */ + if (c1 & 0xf0) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[4]->id); + + if ((c0 & AK4114_PEM) | (c0 & AK4114_CINT)) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[9]->id); + if (c0 & AK4114_QINT) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[10]->id); + + if (c0 & AK4114_AUDION) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[11]->id); + if (c0 & AK4114_AUTO) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[12]->id); + if (c0 & AK4114_DTSCD) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[13]->id); + if (c0 & AK4114_UNLCK) + snd_ctl_notify(ak4114->card, SNDRV_CTL_EVENT_MASK_VALUE, + &ak4114->kctls[14]->id); +} + +int snd_ak4114_external_rate(struct ak4114 *ak4114) +{ + unsigned char rcs1; + + rcs1 = reg_read(ak4114, AK4114_REG_RCS1); + return external_rate(rcs1); +} +EXPORT_SYMBOL(snd_ak4114_external_rate); + +int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags) +{ + struct snd_pcm_runtime *runtime = ak4114->capture_substream ? ak4114->capture_substream->runtime : NULL; + unsigned long _flags; + int res = 0; + unsigned char rcs0, rcs1; + unsigned char c0, c1; + + rcs1 = reg_read(ak4114, AK4114_REG_RCS1); + if (flags & AK4114_CHECK_NO_STAT) + goto __rate; + rcs0 = reg_read(ak4114, AK4114_REG_RCS0); + spin_lock_irqsave(&ak4114->lock, _flags); + if (rcs0 & AK4114_PAR) + ak4114->parity_errors++; + if (rcs1 & AK4114_V) + ak4114->v_bit_errors++; + if (rcs1 & AK4114_CCRC) + ak4114->ccrc_errors++; + if (rcs1 & AK4114_QCRC) + ak4114->qcrc_errors++; + c0 = (ak4114->rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)) ^ + (rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)); + c1 = (ak4114->rcs1 & 0xf0) ^ (rcs1 & 0xf0); + ak4114->rcs0 = rcs0 & ~(AK4114_QINT | AK4114_CINT); + ak4114->rcs1 = rcs1; + spin_unlock_irqrestore(&ak4114->lock, _flags); + + ak4114_notify(ak4114, rcs0, rcs1, c0, c1); + if (ak4114->change_callback && (c0 | c1) != 0) + ak4114->change_callback(ak4114, c0, c1); + + __rate: + /* compare rate */ + res = external_rate(rcs1); + if (!(flags & AK4114_CHECK_NO_RATE) && runtime && runtime->rate != res) { + snd_pcm_stream_lock_irqsave(ak4114->capture_substream, _flags); + if (snd_pcm_running(ak4114->capture_substream)) { + // printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res); + snd_pcm_stop(ak4114->capture_substream, SNDRV_PCM_STATE_DRAINING); + res = 1; + } + snd_pcm_stream_unlock_irqrestore(ak4114->capture_substream, _flags); + } + return res; +} +EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors); + +static void ak4114_stats(struct work_struct *work) +{ + struct ak4114 *chip = container_of(work, struct ak4114, work.work); + + if (atomic_inc_return(&chip->wq_processing) == 1) + snd_ak4114_check_rate_and_errors(chip, chip->check_flags); + if (atomic_dec_and_test(&chip->wq_processing)) + schedule_delayed_work(&chip->work, HZ / 10); +} + +#ifdef CONFIG_PM +void snd_ak4114_suspend(struct ak4114 *chip) +{ + atomic_inc(&chip->wq_processing); /* don't schedule new work */ + cancel_delayed_work_sync(&chip->work); +} +EXPORT_SYMBOL(snd_ak4114_suspend); + +void snd_ak4114_resume(struct ak4114 *chip) +{ + atomic_dec(&chip->wq_processing); + snd_ak4114_reinit(chip); +} +EXPORT_SYMBOL(snd_ak4114_resume); +#endif diff --git a/kernel/sound/i2c/other/ak4117.c b/kernel/sound/i2c/other/ak4117.c new file mode 100644 index 000000000..48848909a --- /dev/null +++ b/kernel/sound/i2c/other/ak4117.c @@ -0,0 +1,548 @@ +/* + * Routines for control of the AK4117 via 4-wire serial interface + * IEC958 (S/PDIF) receiver by Asahi Kasei + * Copyright (c) by Jaroslav Kysela <perex@perex.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 <linux/slab.h> +#include <linux/delay.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/pcm.h> +#include <sound/ak4117.h> +#include <sound/asoundef.h> + +MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); +MODULE_DESCRIPTION("AK4117 IEC958 (S/PDIF) receiver by Asahi Kasei"); +MODULE_LICENSE("GPL"); + +#define AK4117_ADDR 0x00 /* fixed address */ + +static void snd_ak4117_timer(unsigned long data); + +static void reg_write(struct ak4117 *ak4117, unsigned char reg, unsigned char val) +{ + ak4117->write(ak4117->private_data, reg, val); + if (reg < sizeof(ak4117->regmap)) + ak4117->regmap[reg] = val; +} + +static inline unsigned char reg_read(struct ak4117 *ak4117, unsigned char reg) +{ + return ak4117->read(ak4117->private_data, reg); +} + +#if 0 +static void reg_dump(struct ak4117 *ak4117) +{ + int i; + + printk(KERN_DEBUG "AK4117 REG DUMP:\n"); + for (i = 0; i < 0x1b; i++) + printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4117, i), i < sizeof(ak4117->regmap) ? ak4117->regmap[i] : 0); +} +#endif + +static void snd_ak4117_free(struct ak4117 *chip) +{ + del_timer_sync(&chip->timer); + kfree(chip); +} + +static int snd_ak4117_dev_free(struct snd_device *device) +{ + struct ak4117 *chip = device->device_data; + snd_ak4117_free(chip); + return 0; +} + +int snd_ak4117_create(struct snd_card *card, ak4117_read_t *read, ak4117_write_t *write, + const unsigned char pgm[5], void *private_data, struct ak4117 **r_ak4117) +{ + struct ak4117 *chip; + int err = 0; + unsigned char reg; + static struct snd_device_ops ops = { + .dev_free = snd_ak4117_dev_free, + }; + + chip = kzalloc(sizeof(*chip), GFP_KERNEL); + if (chip == NULL) + return -ENOMEM; + spin_lock_init(&chip->lock); + chip->card = card; + chip->read = read; + chip->write = write; + chip->private_data = private_data; + setup_timer(&chip->timer, snd_ak4117_timer, (unsigned long)chip); + + for (reg = 0; reg < 5; reg++) + chip->regmap[reg] = pgm[reg]; + snd_ak4117_reinit(chip); + + chip->rcs0 = reg_read(chip, AK4117_REG_RCS0) & ~(AK4117_QINT | AK4117_CINT | AK4117_STC); + chip->rcs1 = reg_read(chip, AK4117_REG_RCS1); + chip->rcs2 = reg_read(chip, AK4117_REG_RCS2); + + if ((err = snd_device_new(card, SNDRV_DEV_CODEC, chip, &ops)) < 0) + goto __fail; + + if (r_ak4117) + *r_ak4117 = chip; + return 0; + + __fail: + snd_ak4117_free(chip); + return err < 0 ? err : -EIO; +} + +void snd_ak4117_reg_write(struct ak4117 *chip, unsigned char reg, unsigned char mask, unsigned char val) +{ + if (reg >= 5) + return; + reg_write(chip, reg, (chip->regmap[reg] & ~mask) | val); +} + +void snd_ak4117_reinit(struct ak4117 *chip) +{ + unsigned char old = chip->regmap[AK4117_REG_PWRDN], reg; + + del_timer(&chip->timer); + chip->init = 1; + /* bring the chip to reset state and powerdown state */ + reg_write(chip, AK4117_REG_PWRDN, 0); + udelay(200); + /* release reset, but leave powerdown */ + reg_write(chip, AK4117_REG_PWRDN, (old | AK4117_RST) & ~AK4117_PWN); + udelay(200); + for (reg = 1; reg < 5; reg++) + reg_write(chip, reg, chip->regmap[reg]); + /* release powerdown, everything is initialized now */ + reg_write(chip, AK4117_REG_PWRDN, old | AK4117_RST | AK4117_PWN); + chip->init = 0; + mod_timer(&chip->timer, 1 + jiffies); +} + +static unsigned int external_rate(unsigned char rcs1) +{ + switch (rcs1 & (AK4117_FS0|AK4117_FS1|AK4117_FS2|AK4117_FS3)) { + case AK4117_FS_32000HZ: return 32000; + case AK4117_FS_44100HZ: return 44100; + case AK4117_FS_48000HZ: return 48000; + case AK4117_FS_88200HZ: return 88200; + case AK4117_FS_96000HZ: return 96000; + case AK4117_FS_176400HZ: return 176400; + case AK4117_FS_192000HZ: return 192000; + default: return 0; + } +} + +static int snd_ak4117_in_error_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = LONG_MAX; + return 0; +} + +static int snd_ak4117_in_error_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4117 *chip = snd_kcontrol_chip(kcontrol); + long *ptr; + + spin_lock_irq(&chip->lock); + ptr = (long *)(((char *)chip) + kcontrol->private_value); + ucontrol->value.integer.value[0] = *ptr; + *ptr = 0; + spin_unlock_irq(&chip->lock); + return 0; +} + +#define snd_ak4117_in_bit_info snd_ctl_boolean_mono_info + +static int snd_ak4117_in_bit_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4117 *chip = snd_kcontrol_chip(kcontrol); + unsigned char reg = kcontrol->private_value & 0xff; + unsigned char bit = (kcontrol->private_value >> 8) & 0xff; + unsigned char inv = (kcontrol->private_value >> 31) & 1; + + ucontrol->value.integer.value[0] = ((reg_read(chip, reg) & (1 << bit)) ? 1 : 0) ^ inv; + return 0; +} + +static int snd_ak4117_rx_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + return 0; +} + +static int snd_ak4117_rx_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4117 *chip = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = (chip->regmap[AK4117_REG_IO] & AK4117_IPS) ? 1 : 0; + return 0; +} + +static int snd_ak4117_rx_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4117 *chip = snd_kcontrol_chip(kcontrol); + int change; + u8 old_val; + + spin_lock_irq(&chip->lock); + old_val = chip->regmap[AK4117_REG_IO]; + change = !!ucontrol->value.integer.value[0] != ((old_val & AK4117_IPS) ? 1 : 0); + if (change) + reg_write(chip, AK4117_REG_IO, (old_val & ~AK4117_IPS) | (ucontrol->value.integer.value[0] ? AK4117_IPS : 0)); + spin_unlock_irq(&chip->lock); + return change; +} + +static int snd_ak4117_rate_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 192000; + return 0; +} + +static int snd_ak4117_rate_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4117 *chip = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = external_rate(reg_read(chip, AK4117_REG_RCS1)); + return 0; +} + +static int snd_ak4117_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int snd_ak4117_spdif_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4117 *chip = snd_kcontrol_chip(kcontrol); + unsigned i; + + for (i = 0; i < AK4117_REG_RXCSB_SIZE; i++) + ucontrol->value.iec958.status[i] = reg_read(chip, AK4117_REG_RXCSB0 + i); + return 0; +} + +static int snd_ak4117_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int snd_ak4117_spdif_mask_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + memset(ucontrol->value.iec958.status, 0xff, AK4117_REG_RXCSB_SIZE); + return 0; +} + +static int snd_ak4117_spdif_pinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 0xffff; + uinfo->count = 4; + return 0; +} + +static int snd_ak4117_spdif_pget(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4117 *chip = snd_kcontrol_chip(kcontrol); + unsigned short tmp; + + ucontrol->value.integer.value[0] = 0xf8f2; + ucontrol->value.integer.value[1] = 0x4e1f; + tmp = reg_read(chip, AK4117_REG_Pc0) | (reg_read(chip, AK4117_REG_Pc1) << 8); + ucontrol->value.integer.value[2] = tmp; + tmp = reg_read(chip, AK4117_REG_Pd0) | (reg_read(chip, AK4117_REG_Pd1) << 8); + ucontrol->value.integer.value[3] = tmp; + return 0; +} + +static int snd_ak4117_spdif_qinfo(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; + uinfo->count = AK4117_REG_QSUB_SIZE; + return 0; +} + +static int snd_ak4117_spdif_qget(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct ak4117 *chip = snd_kcontrol_chip(kcontrol); + unsigned i; + + for (i = 0; i < AK4117_REG_QSUB_SIZE; i++) + ucontrol->value.bytes.data[i] = reg_read(chip, AK4117_REG_QSUB_ADDR + i); + return 0; +} + +/* Don't forget to change AK4117_CONTROLS define!!! */ +static struct snd_kcontrol_new snd_ak4117_iec958_controls[] = { +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Parity Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_in_error_info, + .get = snd_ak4117_in_error_get, + .private_value = offsetof(struct ak4117, parity_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 V-Bit Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_in_error_info, + .get = snd_ak4117_in_error_get, + .private_value = offsetof(struct ak4117, v_bit_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 C-CRC Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_in_error_info, + .get = snd_ak4117_in_error_get, + .private_value = offsetof(struct ak4117, ccrc_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Q-CRC Errors", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_in_error_info, + .get = snd_ak4117_in_error_get, + .private_value = offsetof(struct ak4117, qcrc_errors), +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 External Rate", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_rate_info, + .get = snd_ak4117_rate_get, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,MASK), + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = snd_ak4117_spdif_mask_info, + .get = snd_ak4117_spdif_mask_get, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT), + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_spdif_info, + .get = snd_ak4117_spdif_get, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Preamble Capture Default", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_spdif_pinfo, + .get = snd_ak4117_spdif_pget, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Q-subcode Capture Default", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_spdif_qinfo, + .get = snd_ak4117_spdif_qget, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Audio", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_in_bit_info, + .get = snd_ak4117_in_bit_get, + .private_value = (1<<31) | (3<<8) | AK4117_REG_RCS0, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 Non-PCM Bitstream", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_in_bit_info, + .get = snd_ak4117_in_bit_get, + .private_value = (5<<8) | AK4117_REG_RCS1, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "IEC958 DTS Bitstream", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_ak4117_in_bit_info, + .get = snd_ak4117_in_bit_get, + .private_value = (6<<8) | AK4117_REG_RCS1, +}, +{ + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = "AK4117 Input Select", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE, + .info = snd_ak4117_rx_info, + .get = snd_ak4117_rx_get, + .put = snd_ak4117_rx_put, +} +}; + +int snd_ak4117_build(struct ak4117 *ak4117, struct snd_pcm_substream *cap_substream) +{ + struct snd_kcontrol *kctl; + unsigned int idx; + int err; + + if (snd_BUG_ON(!cap_substream)) + return -EINVAL; + ak4117->substream = cap_substream; + for (idx = 0; idx < AK4117_CONTROLS; idx++) { + kctl = snd_ctl_new1(&snd_ak4117_iec958_controls[idx], ak4117); + if (kctl == NULL) + return -ENOMEM; + kctl->id.device = cap_substream->pcm->device; + kctl->id.subdevice = cap_substream->number; + err = snd_ctl_add(ak4117->card, kctl); + if (err < 0) + return err; + ak4117->kctls[idx] = kctl; + } + return 0; +} + +int snd_ak4117_external_rate(struct ak4117 *ak4117) +{ + unsigned char rcs1; + + rcs1 = reg_read(ak4117, AK4117_REG_RCS1); + return external_rate(rcs1); +} + +int snd_ak4117_check_rate_and_errors(struct ak4117 *ak4117, unsigned int flags) +{ + struct snd_pcm_runtime *runtime = ak4117->substream ? ak4117->substream->runtime : NULL; + unsigned long _flags; + int res = 0; + unsigned char rcs0, rcs1, rcs2; + unsigned char c0, c1; + + rcs1 = reg_read(ak4117, AK4117_REG_RCS1); + if (flags & AK4117_CHECK_NO_STAT) + goto __rate; + rcs0 = reg_read(ak4117, AK4117_REG_RCS0); + rcs2 = reg_read(ak4117, AK4117_REG_RCS2); + // printk(KERN_DEBUG "AK IRQ: rcs0 = 0x%x, rcs1 = 0x%x, rcs2 = 0x%x\n", rcs0, rcs1, rcs2); + spin_lock_irqsave(&ak4117->lock, _flags); + if (rcs0 & AK4117_PAR) + ak4117->parity_errors++; + if (rcs0 & AK4117_V) + ak4117->v_bit_errors++; + if (rcs2 & AK4117_CCRC) + ak4117->ccrc_errors++; + if (rcs2 & AK4117_QCRC) + ak4117->qcrc_errors++; + c0 = (ak4117->rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK)) ^ + (rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK)); + c1 = (ak4117->rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f)) ^ + (rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f)); + ak4117->rcs0 = rcs0 & ~(AK4117_QINT | AK4117_CINT | AK4117_STC); + ak4117->rcs1 = rcs1; + ak4117->rcs2 = rcs2; + spin_unlock_irqrestore(&ak4117->lock, _flags); + + if (rcs0 & AK4117_PAR) + snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[0]->id); + if (rcs0 & AK4117_V) + snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[1]->id); + if (rcs2 & AK4117_CCRC) + snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[2]->id); + if (rcs2 & AK4117_QCRC) + snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[3]->id); + + /* rate change */ + if (c1 & 0x0f) + snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[4]->id); + + if ((c1 & AK4117_PEM) | (c0 & AK4117_CINT)) + snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[6]->id); + if (c0 & AK4117_QINT) + snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[8]->id); + + if (c0 & AK4117_AUDION) + snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[9]->id); + if (c1 & AK4117_NPCM) + snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[10]->id); + if (c1 & AK4117_DTSCD) + snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[11]->id); + + if (ak4117->change_callback && (c0 | c1) != 0) + ak4117->change_callback(ak4117, c0, c1); + + __rate: + /* compare rate */ + res = external_rate(rcs1); + if (!(flags & AK4117_CHECK_NO_RATE) && runtime && runtime->rate != res) { + snd_pcm_stream_lock_irqsave(ak4117->substream, _flags); + if (snd_pcm_running(ak4117->substream)) { + // printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res); + snd_pcm_stop(ak4117->substream, SNDRV_PCM_STATE_DRAINING); + wake_up(&runtime->sleep); + res = 1; + } + snd_pcm_stream_unlock_irqrestore(ak4117->substream, _flags); + } + return res; +} + +static void snd_ak4117_timer(unsigned long data) +{ + struct ak4117 *chip = (struct ak4117 *)data; + + if (chip->init) + return; + snd_ak4117_check_rate_and_errors(chip, 0); + mod_timer(&chip->timer, 1 + jiffies); +} + +EXPORT_SYMBOL(snd_ak4117_create); +EXPORT_SYMBOL(snd_ak4117_reg_write); +EXPORT_SYMBOL(snd_ak4117_reinit); +EXPORT_SYMBOL(snd_ak4117_build); +EXPORT_SYMBOL(snd_ak4117_external_rate); +EXPORT_SYMBOL(snd_ak4117_check_rate_and_errors); diff --git a/kernel/sound/i2c/other/ak4xxx-adda.c b/kernel/sound/i2c/other/ak4xxx-adda.c new file mode 100644 index 000000000..c65731088 --- /dev/null +++ b/kernel/sound/i2c/other/ak4xxx-adda.c @@ -0,0 +1,929 @@ +/* + * ALSA driver for AK4524 / AK4528 / AK4529 / AK4355 / AK4358 / AK4381 + * AD and DA converters + * + * Copyright (c) 2000-2004 Jaroslav Kysela <perex@perex.cz>, + * Takashi Iwai <tiwai@suse.de> + * + * 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 <linux/io.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/tlv.h> +#include <sound/ak4xxx-adda.h> +#include <sound/info.h> + +MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.de>"); +MODULE_DESCRIPTION("Routines for control of AK452x / AK43xx AD/DA converters"); +MODULE_LICENSE("GPL"); + +/* write the given register and save the data to the cache */ +void snd_akm4xxx_write(struct snd_akm4xxx *ak, int chip, unsigned char reg, + unsigned char val) +{ + ak->ops.lock(ak, chip); + ak->ops.write(ak, chip, reg, val); + + /* save the data */ + snd_akm4xxx_set(ak, chip, reg, val); + ak->ops.unlock(ak, chip); +} + +EXPORT_SYMBOL(snd_akm4xxx_write); + +/* reset procedure for AK4524 and AK4528 */ +static void ak4524_reset(struct snd_akm4xxx *ak, int state) +{ + unsigned int chip; + unsigned char reg; + + for (chip = 0; chip < ak->num_dacs/2; chip++) { + snd_akm4xxx_write(ak, chip, 0x01, state ? 0x00 : 0x03); + if (state) + continue; + /* DAC volumes */ + for (reg = 0x04; reg < ak->total_regs; reg++) + snd_akm4xxx_write(ak, chip, reg, + snd_akm4xxx_get(ak, chip, reg)); + } +} + +/* reset procedure for AK4355 and AK4358 */ +static void ak435X_reset(struct snd_akm4xxx *ak, int state) +{ + unsigned char reg; + + if (state) { + snd_akm4xxx_write(ak, 0, 0x01, 0x02); /* reset and soft-mute */ + return; + } + for (reg = 0x00; reg < ak->total_regs; reg++) + if (reg != 0x01) + snd_akm4xxx_write(ak, 0, reg, + snd_akm4xxx_get(ak, 0, reg)); + snd_akm4xxx_write(ak, 0, 0x01, 0x01); /* un-reset, unmute */ +} + +/* reset procedure for AK4381 */ +static void ak4381_reset(struct snd_akm4xxx *ak, int state) +{ + unsigned int chip; + unsigned char reg; + for (chip = 0; chip < ak->num_dacs/2; chip++) { + snd_akm4xxx_write(ak, chip, 0x00, state ? 0x0c : 0x0f); + if (state) + continue; + for (reg = 0x01; reg < ak->total_regs; reg++) + snd_akm4xxx_write(ak, chip, reg, + snd_akm4xxx_get(ak, chip, reg)); + } +} + +/* + * reset the AKM codecs + * @state: 1 = reset codec, 0 = restore the registers + * + * assert the reset operation and restores the register values to the chips. + */ +void snd_akm4xxx_reset(struct snd_akm4xxx *ak, int state) +{ + switch (ak->type) { + case SND_AK4524: + case SND_AK4528: + case SND_AK4620: + ak4524_reset(ak, state); + break; + case SND_AK4529: + /* FIXME: needed for ak4529? */ + break; + case SND_AK4355: + ak435X_reset(ak, state); + break; + case SND_AK4358: + ak435X_reset(ak, state); + break; + case SND_AK4381: + ak4381_reset(ak, state); + break; + default: + break; + } +} + +EXPORT_SYMBOL(snd_akm4xxx_reset); + + +/* + * Volume conversion table for non-linear volumes + * from -63.5dB (mute) to 0dB step 0.5dB + * + * Used for AK4524/AK4620 input/ouput attenuation, AK4528, and + * AK5365 input attenuation + */ +static const unsigned char vol_cvt_datt[128] = { + 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04, + 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x06, 0x06, + 0x06, 0x07, 0x07, 0x08, 0x08, 0x08, 0x09, 0x0a, + 0x0a, 0x0b, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x0f, + 0x10, 0x10, 0x11, 0x12, 0x12, 0x13, 0x13, 0x14, + 0x15, 0x16, 0x17, 0x17, 0x18, 0x19, 0x1a, 0x1c, + 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x23, + 0x24, 0x25, 0x26, 0x28, 0x29, 0x2a, 0x2b, 0x2d, + 0x2e, 0x30, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, + 0x37, 0x38, 0x39, 0x3b, 0x3c, 0x3e, 0x3f, 0x40, + 0x41, 0x42, 0x43, 0x44, 0x46, 0x47, 0x48, 0x4a, + 0x4b, 0x4d, 0x4e, 0x50, 0x51, 0x52, 0x53, 0x54, + 0x55, 0x56, 0x58, 0x59, 0x5b, 0x5c, 0x5e, 0x5f, + 0x60, 0x61, 0x62, 0x64, 0x65, 0x66, 0x67, 0x69, + 0x6a, 0x6c, 0x6d, 0x6f, 0x70, 0x71, 0x72, 0x73, + 0x75, 0x76, 0x77, 0x79, 0x7a, 0x7c, 0x7d, 0x7f, +}; + +/* + * dB tables + */ +static const DECLARE_TLV_DB_SCALE(db_scale_vol_datt, -6350, 50, 1); +static const DECLARE_TLV_DB_SCALE(db_scale_8bit, -12750, 50, 1); +static const DECLARE_TLV_DB_SCALE(db_scale_7bit, -6350, 50, 1); +static const DECLARE_TLV_DB_LINEAR(db_scale_linear, TLV_DB_GAIN_MUTE, 0); + +/* + * initialize all the ak4xxx chips + */ +void snd_akm4xxx_init(struct snd_akm4xxx *ak) +{ + static const unsigned char inits_ak4524[] = { + 0x00, 0x07, /* 0: all power up */ + 0x01, 0x00, /* 1: ADC/DAC reset */ + 0x02, 0x60, /* 2: 24bit I2S */ + 0x03, 0x19, /* 3: deemphasis off */ + 0x01, 0x03, /* 1: ADC/DAC enable */ + 0x04, 0x00, /* 4: ADC left muted */ + 0x05, 0x00, /* 5: ADC right muted */ + 0x06, 0x00, /* 6: DAC left muted */ + 0x07, 0x00, /* 7: DAC right muted */ + 0xff, 0xff + }; + static const unsigned char inits_ak4528[] = { + 0x00, 0x07, /* 0: all power up */ + 0x01, 0x00, /* 1: ADC/DAC reset */ + 0x02, 0x60, /* 2: 24bit I2S */ + 0x03, 0x0d, /* 3: deemphasis off, turn LR highpass filters on */ + 0x01, 0x03, /* 1: ADC/DAC enable */ + 0x04, 0x00, /* 4: ADC left muted */ + 0x05, 0x00, /* 5: ADC right muted */ + 0xff, 0xff + }; + static const unsigned char inits_ak4529[] = { + 0x09, 0x01, /* 9: ATS=0, RSTN=1 */ + 0x0a, 0x3f, /* A: all power up, no zero/overflow detection */ + 0x00, 0x0c, /* 0: TDM=0, 24bit I2S, SMUTE=0 */ + 0x01, 0x00, /* 1: ACKS=0, ADC, loop off */ + 0x02, 0xff, /* 2: LOUT1 muted */ + 0x03, 0xff, /* 3: ROUT1 muted */ + 0x04, 0xff, /* 4: LOUT2 muted */ + 0x05, 0xff, /* 5: ROUT2 muted */ + 0x06, 0xff, /* 6: LOUT3 muted */ + 0x07, 0xff, /* 7: ROUT3 muted */ + 0x0b, 0xff, /* B: LOUT4 muted */ + 0x0c, 0xff, /* C: ROUT4 muted */ + 0x08, 0x55, /* 8: deemphasis all off */ + 0xff, 0xff + }; + static const unsigned char inits_ak4355[] = { + 0x01, 0x02, /* 1: reset and soft-mute */ + 0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect, + * disable DZF, sharp roll-off, RSTN#=0 */ + 0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */ + // 0x02, 0x2e, /* quad speed */ + 0x03, 0x01, /* 3: de-emphasis off */ + 0x04, 0x00, /* 4: LOUT1 volume muted */ + 0x05, 0x00, /* 5: ROUT1 volume muted */ + 0x06, 0x00, /* 6: LOUT2 volume muted */ + 0x07, 0x00, /* 7: ROUT2 volume muted */ + 0x08, 0x00, /* 8: LOUT3 volume muted */ + 0x09, 0x00, /* 9: ROUT3 volume muted */ + 0x0a, 0x00, /* a: DATT speed=0, ignore DZF */ + 0x01, 0x01, /* 1: un-reset, unmute */ + 0xff, 0xff + }; + static const unsigned char inits_ak4358[] = { + 0x01, 0x02, /* 1: reset and soft-mute */ + 0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect, + * disable DZF, sharp roll-off, RSTN#=0 */ + 0x02, 0x4e, /* 2: DA's power up, normal speed, RSTN#=0 */ + /* 0x02, 0x6e,*/ /* quad speed */ + 0x03, 0x01, /* 3: de-emphasis off */ + 0x04, 0x00, /* 4: LOUT1 volume muted */ + 0x05, 0x00, /* 5: ROUT1 volume muted */ + 0x06, 0x00, /* 6: LOUT2 volume muted */ + 0x07, 0x00, /* 7: ROUT2 volume muted */ + 0x08, 0x00, /* 8: LOUT3 volume muted */ + 0x09, 0x00, /* 9: ROUT3 volume muted */ + 0x0b, 0x00, /* b: LOUT4 volume muted */ + 0x0c, 0x00, /* c: ROUT4 volume muted */ + 0x0a, 0x00, /* a: DATT speed=0, ignore DZF */ + 0x01, 0x01, /* 1: un-reset, unmute */ + 0xff, 0xff + }; + static const unsigned char inits_ak4381[] = { + 0x00, 0x0c, /* 0: mode3(i2s), disable auto-clock detect */ + 0x01, 0x02, /* 1: de-emphasis off, normal speed, + * sharp roll-off, DZF off */ + // 0x01, 0x12, /* quad speed */ + 0x02, 0x00, /* 2: DZF disabled */ + 0x03, 0x00, /* 3: LATT 0 */ + 0x04, 0x00, /* 4: RATT 0 */ + 0x00, 0x0f, /* 0: power-up, un-reset */ + 0xff, 0xff + }; + static const unsigned char inits_ak4620[] = { + 0x00, 0x07, /* 0: normal */ + 0x01, 0x00, /* 0: reset */ + 0x01, 0x02, /* 1: RSTAD */ + 0x01, 0x03, /* 1: RSTDA */ + 0x01, 0x0f, /* 1: normal */ + 0x02, 0x60, /* 2: 24bit I2S */ + 0x03, 0x01, /* 3: deemphasis off */ + 0x04, 0x00, /* 4: LIN muted */ + 0x05, 0x00, /* 5: RIN muted */ + 0x06, 0x00, /* 6: LOUT muted */ + 0x07, 0x00, /* 7: ROUT muted */ + 0xff, 0xff + }; + + int chip; + const unsigned char *ptr, *inits; + unsigned char reg, data; + + memset(ak->images, 0, sizeof(ak->images)); + memset(ak->volumes, 0, sizeof(ak->volumes)); + + switch (ak->type) { + case SND_AK4524: + inits = inits_ak4524; + ak->num_chips = ak->num_dacs / 2; + ak->name = "ak4524"; + ak->total_regs = 0x08; + break; + case SND_AK4528: + inits = inits_ak4528; + ak->num_chips = ak->num_dacs / 2; + ak->name = "ak4528"; + ak->total_regs = 0x06; + break; + case SND_AK4529: + inits = inits_ak4529; + ak->num_chips = 1; + ak->name = "ak4529"; + ak->total_regs = 0x0d; + break; + case SND_AK4355: + inits = inits_ak4355; + ak->num_chips = 1; + ak->name = "ak4355"; + ak->total_regs = 0x0b; + break; + case SND_AK4358: + inits = inits_ak4358; + ak->num_chips = 1; + ak->name = "ak4358"; + ak->total_regs = 0x10; + break; + case SND_AK4381: + inits = inits_ak4381; + ak->num_chips = ak->num_dacs / 2; + ak->name = "ak4381"; + ak->total_regs = 0x05; + break; + case SND_AK5365: + /* FIXME: any init sequence? */ + ak->num_chips = 1; + ak->name = "ak5365"; + ak->total_regs = 0x08; + return; + case SND_AK4620: + inits = inits_ak4620; + ak->num_chips = ak->num_dacs / 2; + ak->name = "ak4620"; + ak->total_regs = 0x08; + break; + default: + snd_BUG(); + return; + } + + for (chip = 0; chip < ak->num_chips; chip++) { + ptr = inits; + while (*ptr != 0xff) { + reg = *ptr++; + data = *ptr++; + snd_akm4xxx_write(ak, chip, reg, data); + udelay(10); + } + } +} + +EXPORT_SYMBOL(snd_akm4xxx_init); + +/* + * Mixer callbacks + */ +#define AK_IPGA (1<<20) /* including IPGA */ +#define AK_VOL_CVT (1<<21) /* need dB conversion */ +#define AK_NEEDSMSB (1<<22) /* need MSB update bit */ +#define AK_INVERT (1<<23) /* data is inverted */ +#define AK_GET_CHIP(val) (((val) >> 8) & 0xff) +#define AK_GET_ADDR(val) ((val) & 0xff) +#define AK_GET_SHIFT(val) (((val) >> 16) & 0x0f) +#define AK_GET_VOL_CVT(val) (((val) >> 21) & 1) +#define AK_GET_IPGA(val) (((val) >> 20) & 1) +#define AK_GET_NEEDSMSB(val) (((val) >> 22) & 1) +#define AK_GET_INVERT(val) (((val) >> 23) & 1) +#define AK_GET_MASK(val) (((val) >> 24) & 0xff) +#define AK_COMPOSE(chip,addr,shift,mask) \ + (((chip) << 8) | (addr) | ((shift) << 16) | ((mask) << 24)) + +static int snd_akm4xxx_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + unsigned int mask = AK_GET_MASK(kcontrol->private_value); + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = mask; + return 0; +} + +static int snd_akm4xxx_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); + int chip = AK_GET_CHIP(kcontrol->private_value); + int addr = AK_GET_ADDR(kcontrol->private_value); + + ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr); + return 0; +} + +static int put_ak_reg(struct snd_kcontrol *kcontrol, int addr, + unsigned char nval) +{ + struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); + unsigned int mask = AK_GET_MASK(kcontrol->private_value); + int chip = AK_GET_CHIP(kcontrol->private_value); + + if (snd_akm4xxx_get_vol(ak, chip, addr) == nval) + return 0; + + snd_akm4xxx_set_vol(ak, chip, addr, nval); + if (AK_GET_VOL_CVT(kcontrol->private_value) && nval < 128) + nval = vol_cvt_datt[nval]; + if (AK_GET_IPGA(kcontrol->private_value) && nval >= 128) + nval++; /* need to correct + 1 since both 127 and 128 are 0dB */ + if (AK_GET_INVERT(kcontrol->private_value)) + nval = mask - nval; + if (AK_GET_NEEDSMSB(kcontrol->private_value)) + nval |= 0x80; + /* printk(KERN_DEBUG "DEBUG - AK writing reg: chip %x addr %x, + nval %x\n", chip, addr, nval); */ + snd_akm4xxx_write(ak, chip, addr, nval); + return 1; +} + +static int snd_akm4xxx_volume_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + unsigned int mask = AK_GET_MASK(kcontrol->private_value); + unsigned int val = ucontrol->value.integer.value[0]; + if (val > mask) + return -EINVAL; + return put_ak_reg(kcontrol, AK_GET_ADDR(kcontrol->private_value), val); +} + +static int snd_akm4xxx_stereo_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + unsigned int mask = AK_GET_MASK(kcontrol->private_value); + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = mask; + return 0; +} + +static int snd_akm4xxx_stereo_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); + int chip = AK_GET_CHIP(kcontrol->private_value); + int addr = AK_GET_ADDR(kcontrol->private_value); + + ucontrol->value.integer.value[0] = snd_akm4xxx_get_vol(ak, chip, addr); + ucontrol->value.integer.value[1] = snd_akm4xxx_get_vol(ak, chip, addr+1); + return 0; +} + +static int snd_akm4xxx_stereo_volume_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int addr = AK_GET_ADDR(kcontrol->private_value); + unsigned int mask = AK_GET_MASK(kcontrol->private_value); + unsigned int val[2]; + int change; + + val[0] = ucontrol->value.integer.value[0]; + val[1] = ucontrol->value.integer.value[1]; + if (val[0] > mask || val[1] > mask) + return -EINVAL; + change = put_ak_reg(kcontrol, addr, val[0]); + change |= put_ak_reg(kcontrol, addr + 1, val[1]); + return change; +} + +static int snd_akm4xxx_deemphasis_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char * const texts[4] = { + "44.1kHz", "Off", "48kHz", "32kHz", + }; + return snd_ctl_enum_info(uinfo, 1, 4, texts); +} + +static int snd_akm4xxx_deemphasis_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); + int chip = AK_GET_CHIP(kcontrol->private_value); + int addr = AK_GET_ADDR(kcontrol->private_value); + int shift = AK_GET_SHIFT(kcontrol->private_value); + ucontrol->value.enumerated.item[0] = + (snd_akm4xxx_get(ak, chip, addr) >> shift) & 3; + return 0; +} + +static int snd_akm4xxx_deemphasis_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); + int chip = AK_GET_CHIP(kcontrol->private_value); + int addr = AK_GET_ADDR(kcontrol->private_value); + int shift = AK_GET_SHIFT(kcontrol->private_value); + unsigned char nval = ucontrol->value.enumerated.item[0] & 3; + int change; + + nval = (nval << shift) | + (snd_akm4xxx_get(ak, chip, addr) & ~(3 << shift)); + change = snd_akm4xxx_get(ak, chip, addr) != nval; + if (change) + snd_akm4xxx_write(ak, chip, addr, nval); + return change; +} + +#define ak4xxx_switch_info snd_ctl_boolean_mono_info + +static int ak4xxx_switch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); + int chip = AK_GET_CHIP(kcontrol->private_value); + int addr = AK_GET_ADDR(kcontrol->private_value); + int shift = AK_GET_SHIFT(kcontrol->private_value); + int invert = AK_GET_INVERT(kcontrol->private_value); + /* we observe the (1<<shift) bit only */ + unsigned char val = snd_akm4xxx_get(ak, chip, addr) & (1<<shift); + if (invert) + val = ! val; + ucontrol->value.integer.value[0] = (val & (1<<shift)) != 0; + return 0; +} + +static int ak4xxx_switch_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); + int chip = AK_GET_CHIP(kcontrol->private_value); + int addr = AK_GET_ADDR(kcontrol->private_value); + int shift = AK_GET_SHIFT(kcontrol->private_value); + int invert = AK_GET_INVERT(kcontrol->private_value); + long flag = ucontrol->value.integer.value[0]; + unsigned char val, oval; + int change; + + if (invert) + flag = ! flag; + oval = snd_akm4xxx_get(ak, chip, addr); + if (flag) + val = oval | (1<<shift); + else + val = oval & ~(1<<shift); + change = (oval != val); + if (change) + snd_akm4xxx_write(ak, chip, addr, val); + return change; +} + +#define AK5365_NUM_INPUTS 5 + +static int ak4xxx_capture_num_inputs(struct snd_akm4xxx *ak, int mixer_ch) +{ + int num_names; + const char **input_names; + + input_names = ak->adc_info[mixer_ch].input_names; + num_names = 0; + while (num_names < AK5365_NUM_INPUTS && input_names[num_names]) + ++num_names; + return num_names; +} + +static int ak4xxx_capture_source_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); + int mixer_ch = AK_GET_SHIFT(kcontrol->private_value); + unsigned int num_names; + + num_names = ak4xxx_capture_num_inputs(ak, mixer_ch); + if (!num_names) + return -EINVAL; + return snd_ctl_enum_info(uinfo, 1, num_names, + ak->adc_info[mixer_ch].input_names); +} + +static int ak4xxx_capture_source_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); + int chip = AK_GET_CHIP(kcontrol->private_value); + int addr = AK_GET_ADDR(kcontrol->private_value); + int mask = AK_GET_MASK(kcontrol->private_value); + unsigned char val; + + val = snd_akm4xxx_get(ak, chip, addr) & mask; + ucontrol->value.enumerated.item[0] = val; + return 0; +} + +static int ak4xxx_capture_source_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_akm4xxx *ak = snd_kcontrol_chip(kcontrol); + int mixer_ch = AK_GET_SHIFT(kcontrol->private_value); + int chip = AK_GET_CHIP(kcontrol->private_value); + int addr = AK_GET_ADDR(kcontrol->private_value); + int mask = AK_GET_MASK(kcontrol->private_value); + unsigned char oval, val; + int num_names = ak4xxx_capture_num_inputs(ak, mixer_ch); + + if (ucontrol->value.enumerated.item[0] >= num_names) + return -EINVAL; + + oval = snd_akm4xxx_get(ak, chip, addr); + val = oval & ~mask; + val |= ucontrol->value.enumerated.item[0] & mask; + if (val != oval) { + snd_akm4xxx_write(ak, chip, addr, val); + return 1; + } + return 0; +} + +/* + * build AK4xxx controls + */ + +static int build_dac_controls(struct snd_akm4xxx *ak) +{ + int idx, err, mixer_ch, num_stereo; + struct snd_kcontrol_new knew; + + mixer_ch = 0; + for (idx = 0; idx < ak->num_dacs; ) { + /* mute control for Revolution 7.1 - AK4381 */ + if (ak->type == SND_AK4381 + && ak->dac_info[mixer_ch].switch_name) { + memset(&knew, 0, sizeof(knew)); + knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + knew.count = 1; + knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + knew.name = ak->dac_info[mixer_ch].switch_name; + knew.info = ak4xxx_switch_info; + knew.get = ak4xxx_switch_get; + knew.put = ak4xxx_switch_put; + knew.access = 0; + /* register 1, bit 0 (SMUTE): 0 = normal operation, + 1 = mute */ + knew.private_value = + AK_COMPOSE(idx/2, 1, 0, 0) | AK_INVERT; + err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); + if (err < 0) + return err; + } + memset(&knew, 0, sizeof(knew)); + if (! ak->dac_info || ! ak->dac_info[mixer_ch].name) { + knew.name = "DAC Volume"; + knew.index = mixer_ch + ak->idx_offset * 2; + num_stereo = 1; + } else { + knew.name = ak->dac_info[mixer_ch].name; + num_stereo = ak->dac_info[mixer_ch].num_channels; + } + knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + knew.count = 1; + knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ; + if (num_stereo == 2) { + knew.info = snd_akm4xxx_stereo_volume_info; + knew.get = snd_akm4xxx_stereo_volume_get; + knew.put = snd_akm4xxx_stereo_volume_put; + } else { + knew.info = snd_akm4xxx_volume_info; + knew.get = snd_akm4xxx_volume_get; + knew.put = snd_akm4xxx_volume_put; + } + switch (ak->type) { + case SND_AK4524: + /* register 6 & 7 */ + knew.private_value = + AK_COMPOSE(idx/2, (idx%2) + 6, 0, 127) | + AK_VOL_CVT; + knew.tlv.p = db_scale_vol_datt; + break; + case SND_AK4528: + /* register 4 & 5 */ + knew.private_value = + AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127) | + AK_VOL_CVT; + knew.tlv.p = db_scale_vol_datt; + break; + case SND_AK4529: { + /* registers 2-7 and b,c */ + int val = idx < 6 ? idx + 2 : (idx - 6) + 0xb; + knew.private_value = + AK_COMPOSE(0, val, 0, 255) | AK_INVERT; + knew.tlv.p = db_scale_8bit; + break; + } + case SND_AK4355: + /* register 4-9, chip #0 only */ + knew.private_value = AK_COMPOSE(0, idx + 4, 0, 255); + knew.tlv.p = db_scale_8bit; + break; + case SND_AK4358: { + /* register 4-9 and 11-12, chip #0 only */ + int addr = idx < 6 ? idx + 4 : idx + 5; + knew.private_value = + AK_COMPOSE(0, addr, 0, 127) | AK_NEEDSMSB; + knew.tlv.p = db_scale_7bit; + break; + } + case SND_AK4381: + /* register 3 & 4 */ + knew.private_value = + AK_COMPOSE(idx/2, (idx%2) + 3, 0, 255); + knew.tlv.p = db_scale_linear; + break; + case SND_AK4620: + /* register 6 & 7 */ + knew.private_value = + AK_COMPOSE(idx/2, (idx%2) + 6, 0, 255); + knew.tlv.p = db_scale_linear; + break; + default: + return -EINVAL; + } + + err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); + if (err < 0) + return err; + + idx += num_stereo; + mixer_ch++; + } + return 0; +} + +static int build_adc_controls(struct snd_akm4xxx *ak) +{ + int idx, err, mixer_ch, num_stereo, max_steps; + struct snd_kcontrol_new knew; + + mixer_ch = 0; + if (ak->type == SND_AK4528) + return 0; /* no controls */ + for (idx = 0; idx < ak->num_adcs;) { + memset(&knew, 0, sizeof(knew)); + if (! ak->adc_info || ! ak->adc_info[mixer_ch].name) { + knew.name = "ADC Volume"; + knew.index = mixer_ch + ak->idx_offset * 2; + num_stereo = 1; + } else { + knew.name = ak->adc_info[mixer_ch].name; + num_stereo = ak->adc_info[mixer_ch].num_channels; + } + knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + knew.count = 1; + knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ; + if (num_stereo == 2) { + knew.info = snd_akm4xxx_stereo_volume_info; + knew.get = snd_akm4xxx_stereo_volume_get; + knew.put = snd_akm4xxx_stereo_volume_put; + } else { + knew.info = snd_akm4xxx_volume_info; + knew.get = snd_akm4xxx_volume_get; + knew.put = snd_akm4xxx_volume_put; + } + /* register 4 & 5 */ + if (ak->type == SND_AK5365) + max_steps = 152; + else + max_steps = 164; + knew.private_value = + AK_COMPOSE(idx/2, (idx%2) + 4, 0, max_steps) | + AK_VOL_CVT | AK_IPGA; + knew.tlv.p = db_scale_vol_datt; + err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); + if (err < 0) + return err; + + if (ak->type == SND_AK5365 && (idx % 2) == 0) { + if (! ak->adc_info || + ! ak->adc_info[mixer_ch].switch_name) { + knew.name = "Capture Switch"; + knew.index = mixer_ch + ak->idx_offset * 2; + } else + knew.name = ak->adc_info[mixer_ch].switch_name; + knew.info = ak4xxx_switch_info; + knew.get = ak4xxx_switch_get; + knew.put = ak4xxx_switch_put; + knew.access = 0; + /* register 2, bit 0 (SMUTE): 0 = normal operation, + 1 = mute */ + knew.private_value = + AK_COMPOSE(idx/2, 2, 0, 0) | AK_INVERT; + err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); + if (err < 0) + return err; + + memset(&knew, 0, sizeof(knew)); + knew.name = ak->adc_info[mixer_ch].selector_name; + if (!knew.name) { + knew.name = "Capture Channel"; + knew.index = mixer_ch + ak->idx_offset * 2; + } + + knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + knew.info = ak4xxx_capture_source_info; + knew.get = ak4xxx_capture_source_get; + knew.put = ak4xxx_capture_source_put; + knew.access = 0; + /* input selector control: reg. 1, bits 0-2. + * mis-use 'shift' to pass mixer_ch */ + knew.private_value + = AK_COMPOSE(idx/2, 1, mixer_ch, 0x07); + err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); + if (err < 0) + return err; + } + + idx += num_stereo; + mixer_ch++; + } + return 0; +} + +static int build_deemphasis(struct snd_akm4xxx *ak, int num_emphs) +{ + int idx, err; + struct snd_kcontrol_new knew; + + for (idx = 0; idx < num_emphs; idx++) { + memset(&knew, 0, sizeof(knew)); + knew.name = "Deemphasis"; + knew.index = idx + ak->idx_offset; + knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + knew.count = 1; + knew.info = snd_akm4xxx_deemphasis_info; + knew.get = snd_akm4xxx_deemphasis_get; + knew.put = snd_akm4xxx_deemphasis_put; + switch (ak->type) { + case SND_AK4524: + case SND_AK4528: + case SND_AK4620: + /* register 3 */ + knew.private_value = AK_COMPOSE(idx, 3, 0, 0); + break; + case SND_AK4529: { + int shift = idx == 3 ? 6 : (2 - idx) * 2; + /* register 8 with shift */ + knew.private_value = AK_COMPOSE(0, 8, shift, 0); + break; + } + case SND_AK4355: + case SND_AK4358: + knew.private_value = AK_COMPOSE(idx, 3, 0, 0); + break; + case SND_AK4381: + knew.private_value = AK_COMPOSE(idx, 1, 1, 0); + break; + default: + return -EINVAL; + } + err = snd_ctl_add(ak->card, snd_ctl_new1(&knew, ak)); + if (err < 0) + return err; + } + return 0; +} + +#ifdef CONFIG_PROC_FS +static void proc_regs_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_akm4xxx *ak = entry->private_data; + int reg, val, chip; + for (chip = 0; chip < ak->num_chips; chip++) { + for (reg = 0; reg < ak->total_regs; reg++) { + val = snd_akm4xxx_get(ak, chip, reg); + snd_iprintf(buffer, "chip %d: 0x%02x = 0x%02x\n", chip, + reg, val); + } + } +} + +static int proc_init(struct snd_akm4xxx *ak) +{ + struct snd_info_entry *entry; + int err; + err = snd_card_proc_new(ak->card, ak->name, &entry); + if (err < 0) + return err; + snd_info_set_text_ops(entry, ak, proc_regs_read); + return 0; +} +#else /* !CONFIG_PROC_FS */ +static int proc_init(struct snd_akm4xxx *ak) { return 0; } +#endif + +int snd_akm4xxx_build_controls(struct snd_akm4xxx *ak) +{ + int err, num_emphs; + + err = build_dac_controls(ak); + if (err < 0) + return err; + + err = build_adc_controls(ak); + if (err < 0) + return err; + if (ak->type == SND_AK4355 || ak->type == SND_AK4358) + num_emphs = 1; + else if (ak->type == SND_AK4620) + num_emphs = 0; + else + num_emphs = ak->num_dacs / 2; + err = build_deemphasis(ak, num_emphs); + if (err < 0) + return err; + err = proc_init(ak); + if (err < 0) + return err; + + return 0; +} +EXPORT_SYMBOL(snd_akm4xxx_build_controls); + +static int __init alsa_akm4xxx_module_init(void) +{ + return 0; +} + +static void __exit alsa_akm4xxx_module_exit(void) +{ +} + +module_init(alsa_akm4xxx_module_init) +module_exit(alsa_akm4xxx_module_exit) diff --git a/kernel/sound/i2c/other/pt2258.c b/kernel/sound/i2c/other/pt2258.c new file mode 100644 index 000000000..9fa390ba1 --- /dev/null +++ b/kernel/sound/i2c/other/pt2258.c @@ -0,0 +1,227 @@ +/* + * ALSA Driver for the PT2258 volume controller. + * + * Copyright (c) 2006 Jochen Voss <voss@seehuhn.de> + * + * 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/core.h> +#include <sound/control.h> +#include <sound/tlv.h> +#include <sound/i2c.h> +#include <sound/pt2258.h> +#include <linux/module.h> + +MODULE_AUTHOR("Jochen Voss <voss@seehuhn.de>"); +MODULE_DESCRIPTION("PT2258 volume controller (Princeton Technology Corp.)"); +MODULE_LICENSE("GPL"); + +#define PT2258_CMD_RESET 0xc0 +#define PT2258_CMD_UNMUTE 0xf8 +#define PT2258_CMD_MUTE 0xf9 + +static const unsigned char pt2258_channel_code[12] = { + 0x80, 0x90, /* channel 1: -10dB, -1dB */ + 0x40, 0x50, /* channel 2: -10dB, -1dB */ + 0x00, 0x10, /* channel 3: -10dB, -1dB */ + 0x20, 0x30, /* channel 4: -10dB, -1dB */ + 0x60, 0x70, /* channel 5: -10dB, -1dB */ + 0xa0, 0xb0 /* channel 6: -10dB, -1dB */ +}; + +int snd_pt2258_reset(struct snd_pt2258 *pt) +{ + unsigned char bytes[2]; + int i; + + /* reset chip */ + bytes[0] = PT2258_CMD_RESET; + snd_i2c_lock(pt->i2c_bus); + if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 1) != 1) + goto __error; + snd_i2c_unlock(pt->i2c_bus); + + /* mute all channels */ + pt->mute = 1; + bytes[0] = PT2258_CMD_MUTE; + snd_i2c_lock(pt->i2c_bus); + if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 1) != 1) + goto __error; + snd_i2c_unlock(pt->i2c_bus); + + /* set all channels to 0dB */ + for (i = 0; i < 6; ++i) + pt->volume[i] = 0; + bytes[0] = 0xd0; + bytes[1] = 0xe0; + snd_i2c_lock(pt->i2c_bus); + if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 2) != 2) + goto __error; + snd_i2c_unlock(pt->i2c_bus); + + return 0; + + __error: + snd_i2c_unlock(pt->i2c_bus); + snd_printk(KERN_ERR "PT2258 reset failed\n"); + return -EIO; +} + +static int pt2258_stereo_volume_info(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 = 79; + return 0; +} + +static int pt2258_stereo_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pt2258 *pt = kcontrol->private_data; + int base = kcontrol->private_value; + + /* chip does not support register reads */ + ucontrol->value.integer.value[0] = 79 - pt->volume[base]; + ucontrol->value.integer.value[1] = 79 - pt->volume[base + 1]; + return 0; +} + +static int pt2258_stereo_volume_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pt2258 *pt = kcontrol->private_data; + int base = kcontrol->private_value; + unsigned char bytes[2]; + int val0, val1; + + val0 = 79 - ucontrol->value.integer.value[0]; + val1 = 79 - ucontrol->value.integer.value[1]; + if (val0 < 0 || val0 > 79 || val1 < 0 || val1 > 79) + return -EINVAL; + if (val0 == pt->volume[base] && val1 == pt->volume[base + 1]) + return 0; + + pt->volume[base] = val0; + bytes[0] = pt2258_channel_code[2 * base] | (val0 / 10); + bytes[1] = pt2258_channel_code[2 * base + 1] | (val0 % 10); + snd_i2c_lock(pt->i2c_bus); + if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 2) != 2) + goto __error; + snd_i2c_unlock(pt->i2c_bus); + + pt->volume[base + 1] = val1; + bytes[0] = pt2258_channel_code[2 * base + 2] | (val1 / 10); + bytes[1] = pt2258_channel_code[2 * base + 3] | (val1 % 10); + snd_i2c_lock(pt->i2c_bus); + if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 2) != 2) + goto __error; + snd_i2c_unlock(pt->i2c_bus); + + return 1; + + __error: + snd_i2c_unlock(pt->i2c_bus); + snd_printk(KERN_ERR "PT2258 access failed\n"); + return -EIO; +} + +#define pt2258_switch_info snd_ctl_boolean_mono_info + +static int pt2258_switch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pt2258 *pt = kcontrol->private_data; + + ucontrol->value.integer.value[0] = !pt->mute; + return 0; +} + +static int pt2258_switch_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pt2258 *pt = kcontrol->private_data; + unsigned char bytes[2]; + int val; + + val = !ucontrol->value.integer.value[0]; + if (pt->mute == val) + return 0; + + pt->mute = val; + bytes[0] = val ? PT2258_CMD_MUTE : PT2258_CMD_UNMUTE; + snd_i2c_lock(pt->i2c_bus); + if (snd_i2c_sendbytes(pt->i2c_dev, bytes, 1) != 1) + goto __error; + snd_i2c_unlock(pt->i2c_bus); + + return 1; + + __error: + snd_i2c_unlock(pt->i2c_bus); + snd_printk(KERN_ERR "PT2258 access failed 2\n"); + return -EIO; +} + +static const DECLARE_TLV_DB_SCALE(pt2258_db_scale, -7900, 100, 0); + +int snd_pt2258_build_controls(struct snd_pt2258 *pt) +{ + struct snd_kcontrol_new knew; + char *names[3] = { + "Mic Loopback Playback Volume", + "Line Loopback Playback Volume", + "CD Loopback Playback Volume" + }; + int i, err; + + for (i = 0; i < 3; ++i) { + memset(&knew, 0, sizeof(knew)); + knew.name = names[i]; + knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + knew.count = 1; + knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ; + knew.private_value = 2 * i; + knew.info = pt2258_stereo_volume_info; + knew.get = pt2258_stereo_volume_get; + knew.put = pt2258_stereo_volume_put; + knew.tlv.p = pt2258_db_scale; + + err = snd_ctl_add(pt->card, snd_ctl_new1(&knew, pt)); + if (err < 0) + return err; + } + + memset(&knew, 0, sizeof(knew)); + knew.name = "Loopback Switch"; + knew.iface = SNDRV_CTL_ELEM_IFACE_MIXER; + knew.info = pt2258_switch_info; + knew.get = pt2258_switch_get; + knew.put = pt2258_switch_put; + knew.access = 0; + err = snd_ctl_add(pt->card, snd_ctl_new1(&knew, pt)); + if (err < 0) + return err; + + return 0; +} + +EXPORT_SYMBOL(snd_pt2258_reset); +EXPORT_SYMBOL(snd_pt2258_build_controls); |