| /* |
| * 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@suse.cz> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include <sound/driver.h> |
| #include <linux/slab.h> |
| #include <linux/delay.h> |
| #include <sound/core.h> |
| #include <sound/control.h> |
| #include <sound/pcm.h> |
| #include <sound/ak4114.h> |
| #include <sound/asoundef.h> |
| |
| MODULE_AUTHOR("Jaroslav Kysela <perex@suse.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 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_RXCSB0 && reg <= AK4114_REG_TXCSB4) |
| ak4114->txcsb[reg-AK4114_REG_RXCSB0] = 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 < sizeof(ak4114->regmap) ? ak4114->regmap[i] : 0); |
| } |
| #endif |
| |
| static void snd_ak4114_free(struct ak4114 *chip) |
| { |
| chip->init = 1; /* don't schedule new work */ |
| mb(); |
| cancel_delayed_work(&chip->work); |
| flush_scheduled_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[7], 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); |
| |
| for (reg = 0; reg < 7; reg++) |
| chip->regmap[reg] = pgm[reg]; |
| for (reg = 0; reg < 5; reg++) |
| chip->txcsb[reg] = txcsb[reg]; |
| |
| snd_ak4114_reinit(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_LOWLEVEL, chip, &ops)) < 0) |
| goto __fail; |
| |
| if (r_ak4114) |
| *r_ak4114 = chip; |
| return 0; |
| |
| __fail: |
| snd_ak4114_free(chip); |
| return err < 0 ? err : -EIO; |
| } |
| |
| 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] & ~mask) | val); |
| } |
| |
| void snd_ak4114_reinit(struct ak4114 *chip) |
| { |
| unsigned char old = chip->regmap[AK4114_REG_PWRDN], reg; |
| |
| chip->init = 1; |
| mb(); |
| flush_scheduled_work(); |
| /* 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 < 7; 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); |
| /* bring up statistics / event queing */ |
| chip->init = 0; |
| schedule_delayed_work(&chip->work, HZ / 10); |
| } |
| |
| 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; |
| } |
| |
| static int snd_ak4114_in_bit_info(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_info *uinfo) |
| { |
| uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| uinfo->count = 1; |
| uinfo->value.integer.min = 0; |
| uinfo->value.integer.max = 1; |
| return 0; |
| } |
| |
| 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 Preample 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_RCS1, |
| }, |
| { |
| .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_RCS1, |
| } |
| }; |
| |
| 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; |
| |
| snd_assert(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; |
| } |
| return 0; |
| } |
| |
| int snd_ak4114_external_rate(struct ak4114 *ak4114) |
| { |
| unsigned char rcs1; |
| |
| rcs1 = reg_read(ak4114, AK4114_REG_RCS1); |
| return external_rate(rcs1); |
| } |
| |
| 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); |
| |
| 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 (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; |
| } |
| |
| static void ak4114_stats(struct work_struct *work) |
| { |
| struct ak4114 *chip = container_of(work, struct ak4114, work.work); |
| |
| if (chip->init) |
| return; |
| snd_ak4114_check_rate_and_errors(chip, 0); |
| schedule_delayed_work(&chip->work, HZ / 10); |
| } |
| |
| EXPORT_SYMBOL(snd_ak4114_create); |
| EXPORT_SYMBOL(snd_ak4114_reg_write); |
| EXPORT_SYMBOL(snd_ak4114_reinit); |
| EXPORT_SYMBOL(snd_ak4114_build); |
| EXPORT_SYMBOL(snd_ak4114_external_rate); |
| EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors); |