mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
![Takashi Iwai](/assets/img/avatar_default.png)
Kill snd_assert() in other places, either removed or replaced with if () with snd_BUG_ON(). Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
626 lines
18 KiB
C
626 lines
18 KiB
C
/*
|
|
* 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 <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 < 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];
|
|
|
|
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_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-AK4114_REG_TXCSB0] & ~mask) | val);
|
|
}
|
|
|
|
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 < 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);
|
|
}
|
|
|
|
void snd_ak4114_reinit(struct ak4114 *chip)
|
|
{
|
|
chip->init = 1;
|
|
mb();
|
|
flush_scheduled_work();
|
|
ak4114_init_regs(chip);
|
|
/* bring up statistics / event queing */
|
|
chip->init = 0;
|
|
if (chip->kctls[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;
|
|
}
|
|
|
|
#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 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_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;
|
|
}
|
|
|
|
/* 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);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
static void ak4114_stats(struct work_struct *work)
|
|
{
|
|
struct ak4114 *chip = container_of(work, struct ak4114, work.work);
|
|
|
|
if (!chip->init)
|
|
snd_ak4114_check_rate_and_errors(chip, chip->check_flags);
|
|
|
|
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);
|