--- /dev/null
+/*
+ * 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(void *);
+
+static void reg_write(ak4114_t *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(ak4114_t *ak4114, unsigned char reg)
+{
+ return ak4114->read(ak4114->private_data, reg);
+}
+
+#if 0
+static void reg_dump(ak4114_t *ak4114)
+{
+ int i;
+
+ printk("AK4114 REG DUMP:\n");
+ for (i = 0; i < 0x20; i++)
+ printk("reg[%02x] = %02x (%02x)\n", i, reg_read(ak4114, i), i < sizeof(ak4114->regmap) ? ak4114->regmap[i] : 0);
+}
+#endif
+
+static void snd_ak4114_free(ak4114_t *chip)
+{
+ chip->init = 1; /* don't schedule new work */
+ mb();
+ if (chip->workqueue != NULL) {
+ flush_workqueue(chip->workqueue);
+ destroy_workqueue(chip->workqueue);
+ }
+ kfree(chip);
+}
+
+static int snd_ak4114_dev_free(snd_device_t *device)
+{
+ ak4114_t *chip = device->device_data;
+ snd_ak4114_free(chip);
+ return 0;
+}
+
+int snd_ak4114_create(snd_card_t *card,
+ ak4114_read_t *read, ak4114_write_t *write,
+ unsigned char pgm[7], unsigned char txcsb[5],
+ void *private_data, ak4114_t **r_ak4114)
+{
+ ak4114_t *chip;
+ int err = 0;
+ unsigned char reg;
+ static snd_device_ops_t ops = {
+ .dev_free = snd_ak4114_dev_free,
+ };
+
+ chip = kcalloc(1, 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;
+
+ for (reg = 0; reg < 7; reg++)
+ chip->regmap[reg] = pgm[reg];
+ for (reg = 0; reg < 5; reg++)
+ chip->txcsb[reg] = txcsb[reg];
+
+ chip->workqueue = create_workqueue("snd-ak4114");
+ if (chip->workqueue == NULL) {
+ kfree(chip);
+ return -ENOMEM;
+ }
+
+ 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(ak4114_t *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(ak4114_t *chip)
+{
+ unsigned char old = chip->regmap[AK4114_REG_PWRDN], reg;
+
+ chip->init = 1;
+ mb();
+ flush_workqueue(chip->workqueue);
+ /* 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;
+ INIT_WORK(&chip->work, ak4114_stats, chip);
+ queue_delayed_work(chip->workqueue, &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(snd_kcontrol_t *kcontrol,
+ snd_ctl_elem_info_t *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(snd_kcontrol_t *kcontrol,
+ snd_ctl_elem_value_t *ucontrol)
+{
+ ak4114_t *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(snd_kcontrol_t *kcontrol,
+ snd_ctl_elem_info_t *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(snd_kcontrol_t *kcontrol,
+ snd_ctl_elem_value_t *ucontrol)
+{
+ ak4114_t *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(snd_kcontrol_t *kcontrol,
+ snd_ctl_elem_info_t *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(snd_kcontrol_t *kcontrol,
+ snd_ctl_elem_value_t *ucontrol)
+{
+ ak4114_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+ uinfo->count = 1;
+ return 0;
+}
+
+static int snd_ak4114_spdif_get(snd_kcontrol_t * kcontrol,
+ snd_ctl_elem_value_t * ucontrol)
+{
+ ak4114_t *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(snd_kcontrol_t * kcontrol,
+ snd_ctl_elem_value_t * ucontrol)
+{
+ ak4114_t *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(snd_kcontrol_t * kcontrol,
+ snd_ctl_elem_value_t * ucontrol)
+{
+ ak4114_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+ uinfo->count = 1;
+ return 0;
+}
+
+static int snd_ak4114_spdif_mask_get(snd_kcontrol_t * kcontrol,
+ snd_ctl_elem_value_t * ucontrol)
+{
+ memset(ucontrol->value.iec958.status, 0xff, AK4114_REG_RXCSB_SIZE);
+ return 0;
+}
+
+static int snd_ak4114_spdif_pinfo(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * 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(snd_kcontrol_t * kcontrol,
+ snd_ctl_elem_value_t * ucontrol)
+{
+ ak4114_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+ uinfo->count = AK4114_REG_QSUB_SIZE;
+ return 0;
+}
+
+static int snd_ak4114_spdif_qget(snd_kcontrol_t * kcontrol,
+ snd_ctl_elem_value_t * ucontrol)
+{
+ ak4114_t *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 snd_kcontrol_new_t 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(ak4114_t, 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(ak4114_t, 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(ak4114_t, 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(ak4114_t, 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(ak4114_t *ak4114,
+ snd_pcm_substream_t *ply_substream,
+ snd_pcm_substream_t *cap_substream)
+{
+ snd_kcontrol_t *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(ak4114_t *ak4114)
+{
+ unsigned char rcs1;
+
+ rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
+ return external_rate(rcs1);
+}
+
+int snd_ak4114_check_rate_and_errors(ak4114_t *ak4114, unsigned int flags)
+{
+ snd_pcm_runtime_t *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("rate changed (%i <- %i)\n", runtime->rate, res);
+ snd_pcm_stop(ak4114->capture_substream, SNDRV_PCM_STATE_DRAINING);
+ wake_up(&runtime->sleep);
+ res = 1;
+ }
+ snd_pcm_stream_unlock_irqrestore(ak4114->capture_substream, _flags);
+ }
+ return res;
+}
+
+static void ak4114_stats(void *data)
+{
+ ak4114_t *chip = (ak4114_t *)data;
+
+ if (chip->init)
+ return;
+ snd_ak4114_check_rate_and_errors(chip, 0);
+ queue_delayed_work(chip->workqueue, &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);
git://git.onelab.eu / linux-2.6.git / blobdiff