#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
-#include <linux/reboot.h>
#include <sound/core.h>
#include <sound/initval.h>
-#include "hda_priv.h"
#include "hda_controller.h"
#define CREATE_TRACE_POINTS
tc->cycle_last = last;
}
+static inline struct hda_pcm_stream *
+to_hda_pcm_stream(struct snd_pcm_substream *substream)
+{
+ struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
+ return &apcm->info->stream[substream->stream];
+}
+
static u64 azx_adjust_codec_delay(struct snd_pcm_substream *substream,
u64 nsec)
{
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
- struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
+ struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
u64 codec_frames, codec_nsecs;
if (!hinfo->ops.get_delay)
static int azx_pcm_close(struct snd_pcm_substream *substream)
{
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
- struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
+ struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
struct azx *chip = apcm->chip;
struct azx_dev *azx_dev = get_azx_dev(substream);
unsigned long flags;
azx_dev->running = 0;
spin_unlock_irqrestore(&chip->reg_lock, flags);
azx_release_device(azx_dev);
- hinfo->ops.close(hinfo, apcm->codec, substream);
+ if (hinfo->ops.close)
+ hinfo->ops.close(hinfo, apcm->codec, substream);
snd_hda_power_down(apcm->codec);
mutex_unlock(&chip->open_mutex);
+ snd_hda_codec_pcm_put(apcm->info);
return 0;
}
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
struct azx_dev *azx_dev = get_azx_dev(substream);
struct azx *chip = apcm->chip;
- struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
+ struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
int err;
/* reset BDL address */
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
struct azx *chip = apcm->chip;
struct azx_dev *azx_dev = get_azx_dev(substream);
- struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
+ struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int bufsize, period_bytes, format_val, stream_tag;
int err;
if (substream->runtime) {
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
- struct hda_pcm_stream *hinfo = apcm->hinfo[stream];
+ struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
if (chip->get_delay[stream])
delay += chip->get_delay[stream](chip, azx_dev, pos);
azx_get_position(chip, azx_dev));
}
-static int azx_get_wallclock_tstamp(struct snd_pcm_substream *substream,
- struct timespec *ts)
+static int azx_get_time_info(struct snd_pcm_substream *substream,
+ struct timespec *system_ts, struct timespec *audio_ts,
+ struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
+ struct snd_pcm_audio_tstamp_report *audio_tstamp_report)
{
struct azx_dev *azx_dev = get_azx_dev(substream);
u64 nsec;
- nsec = timecounter_read(&azx_dev->azx_tc);
- nsec = div_u64(nsec, 3); /* can be optimized */
- nsec = azx_adjust_codec_delay(substream, nsec);
+ if ((substream->runtime->hw.info & SNDRV_PCM_INFO_HAS_LINK_ATIME) &&
+ (audio_tstamp_config->type_requested == SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK)) {
+
+ snd_pcm_gettime(substream->runtime, system_ts);
+
+ nsec = timecounter_read(&azx_dev->azx_tc);
+ nsec = div_u64(nsec, 3); /* can be optimized */
+ if (audio_tstamp_config->report_delay)
+ nsec = azx_adjust_codec_delay(substream, nsec);
- *ts = ns_to_timespec(nsec);
+ *audio_ts = ns_to_timespec(nsec);
+
+ audio_tstamp_report->actual_type = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK;
+ audio_tstamp_report->accuracy_report = 1; /* rest of structure is valid */
+ audio_tstamp_report->accuracy = 42; /* 24 MHz WallClock == 42ns resolution */
+
+ } else
+ audio_tstamp_report->actual_type = SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT;
return 0;
}
/* SNDRV_PCM_INFO_RESUME |*/
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_SYNC_START |
- SNDRV_PCM_INFO_HAS_WALL_CLOCK |
+ SNDRV_PCM_INFO_HAS_WALL_CLOCK | /* legacy */
+ SNDRV_PCM_INFO_HAS_LINK_ATIME |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP),
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_48000,
static int azx_pcm_open(struct snd_pcm_substream *substream)
{
struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
- struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
+ struct hda_pcm_stream *hinfo = to_hda_pcm_stream(substream);
struct azx *chip = apcm->chip;
struct azx_dev *azx_dev;
struct snd_pcm_runtime *runtime = substream->runtime;
int err;
int buff_step;
+ snd_hda_codec_pcm_get(apcm->info);
mutex_lock(&chip->open_mutex);
azx_dev = azx_assign_device(chip, substream);
if (azx_dev == NULL) {
- mutex_unlock(&chip->open_mutex);
- return -EBUSY;
+ err = -EBUSY;
+ goto unlock;
}
runtime->hw = azx_pcm_hw;
runtime->hw.channels_min = hinfo->channels_min;
buff_step);
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
buff_step);
- snd_hda_power_up_d3wait(apcm->codec);
- err = hinfo->ops.open(hinfo, apcm->codec, substream);
+ snd_hda_power_up(apcm->codec);
+ if (hinfo->ops.open)
+ err = hinfo->ops.open(hinfo, apcm->codec, substream);
+ else
+ err = -ENODEV;
if (err < 0) {
azx_release_device(azx_dev);
- snd_hda_power_down(apcm->codec);
- mutex_unlock(&chip->open_mutex);
- return err;
+ goto powerdown;
}
snd_pcm_limit_hw_rates(runtime);
/* sanity check */
snd_BUG_ON(!runtime->hw.formats) ||
snd_BUG_ON(!runtime->hw.rates)) {
azx_release_device(azx_dev);
- hinfo->ops.close(hinfo, apcm->codec, substream);
- snd_hda_power_down(apcm->codec);
- mutex_unlock(&chip->open_mutex);
- return -EINVAL;
+ if (hinfo->ops.close)
+ hinfo->ops.close(hinfo, apcm->codec, substream);
+ err = -EINVAL;
+ goto powerdown;
}
- /* disable WALLCLOCK timestamps for capture streams
+ /* disable LINK_ATIME timestamps for capture streams
until we figure out how to handle digital inputs */
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_WALL_CLOCK;
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+ runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_WALL_CLOCK; /* legacy */
+ runtime->hw.info &= ~SNDRV_PCM_INFO_HAS_LINK_ATIME;
+ }
spin_lock_irqsave(&chip->reg_lock, flags);
azx_dev->substream = substream;
snd_pcm_set_sync(substream);
mutex_unlock(&chip->open_mutex);
return 0;
+
+ powerdown:
+ snd_hda_power_down(apcm->codec);
+ unlock:
+ mutex_unlock(&chip->open_mutex);
+ snd_hda_codec_pcm_put(apcm->info);
+ return err;
}
static int azx_pcm_mmap(struct snd_pcm_substream *substream,
.prepare = azx_pcm_prepare,
.trigger = azx_pcm_trigger,
.pointer = azx_pcm_pointer,
- .wall_clock = azx_get_wallclock_tstamp,
+ .get_time_info = azx_get_time_info,
.mmap = azx_pcm_mmap,
.page = snd_pcm_sgbuf_ops_page,
};
struct azx_pcm *apcm = pcm->private_data;
if (apcm) {
list_del(&apcm->list);
+ apcm->info->pcm = NULL;
kfree(apcm);
}
}
apcm->chip = chip;
apcm->pcm = pcm;
apcm->codec = codec;
+ apcm->info = cpcm;
pcm->private_data = apcm;
pcm->private_free = azx_pcm_free;
if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
list_add_tail(&apcm->list, &chip->pcm_list);
cpcm->pcm = pcm;
for (s = 0; s < 2; s++) {
- apcm->hinfo[s] = &cpcm->stream[s];
if (cpcm->stream[s].substreams)
snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
}
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
chip->card->dev,
size, MAX_PREALLOC_SIZE);
- /* link to codec */
- for (s = 0; s < 2; s++)
- pcm->streams[s].dev.parent = &codec->dev;
return 0;
}
*/
static int azx_alloc_cmd_io(struct azx *chip)
{
- int err;
-
/* single page (at least 4096 bytes) must suffice for both ringbuffes */
- err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
- PAGE_SIZE, &chip->rb);
- if (err < 0)
- dev_err(chip->card->dev, "cannot allocate CORB/RIRB\n");
- return err;
+ return chip->io_ops->dma_alloc_pages(azx_bus(chip), SNDRV_DMA_TYPE_DEV,
+ PAGE_SIZE, &chip->rb);
}
static void azx_init_cmd_io(struct azx *chip)
}
/* receive a response */
-static unsigned int azx_rirb_get_response(struct hda_bus *bus,
- unsigned int addr)
+static int azx_rirb_get_response(struct hda_bus *bus, unsigned int addr,
+ unsigned int *res)
{
struct azx *chip = bus->private_data;
unsigned long timeout;
}
if (!chip->rirb.cmds[addr]) {
smp_rmb();
- bus->rirb_error = 0;
if (!do_poll)
chip->poll_count = 0;
- return chip->rirb.res[addr]; /* the last value */
+ if (res)
+ *res = chip->rirb.res[addr]; /* the last value */
+ return 0;
}
if (time_after(jiffies, timeout))
break;
}
if (bus->no_response_fallback)
- return -1;
+ return -EIO;
if (!chip->polling_mode && chip->poll_count < 2) {
dev_dbg(chip->card->dev,
"No response from codec, disabling MSI: last cmd=0x%08x\n",
chip->last_cmd[addr]);
if (chip->ops->disable_msi_reset_irq(chip) &&
- chip->ops->disable_msi_reset_irq(chip) < 0) {
- bus->rirb_error = 1;
- return -1;
- }
+ chip->ops->disable_msi_reset_irq(chip) < 0)
+ return -EIO;
goto again;
}
* phase, this is likely an access to a non-existing codec
* slot. Better to return an error and reset the system.
*/
- return -1;
+ return -EIO;
}
/* a fatal communication error; need either to reset or to fallback
* to the single_cmd mode
*/
- bus->rirb_error = 1;
if (bus->allow_bus_reset && !bus->response_reset && !bus->in_reset) {
bus->response_reset = 1;
- return -1; /* give a chance to retry */
+ return -EAGAIN; /* give a chance to retry */
}
dev_err(chip->card->dev,
azx_free_cmd_io(chip);
/* disable unsolicited responses */
azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~AZX_GCTL_UNSOL);
- return -1;
+ return -EIO;
}
/*
unsigned int addr = azx_command_addr(val);
int timeout = 50;
- bus->rirb_error = 0;
while (timeout--) {
/* check ICB busy bit */
if (!((azx_readw(chip, IRS) & AZX_IRS_BUSY))) {
}
/* receive a response */
-static unsigned int azx_single_get_response(struct hda_bus *bus,
- unsigned int addr)
+static int azx_single_get_response(struct hda_bus *bus, unsigned int addr,
+ unsigned int *res)
{
struct azx *chip = bus->private_data;
- return chip->rirb.res[addr];
+
+ if (res)
+ *res = chip->rirb.res[addr];
+ return 0;
}
/*
*/
/* send a command */
-static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
+static int azx_send_cmd(struct hdac_bus *_bus, unsigned int val)
{
+ struct hda_bus *bus = to_hda_bus(_bus);
struct azx *chip = bus->private_data;
if (chip->disabled)
}
/* get a response */
-static unsigned int azx_get_response(struct hda_bus *bus,
- unsigned int addr)
+static int azx_get_response(struct hdac_bus *_bus, unsigned int addr,
+ unsigned int *res)
{
+ struct hda_bus *bus = to_hda_bus(_bus);
struct azx *chip = bus->private_data;
if (chip->disabled)
return 0;
if (chip->single_cmd)
- return azx_single_get_response(bus, addr);
+ return azx_single_get_response(bus, addr, res);
else
- return azx_rirb_get_response(bus, addr);
+ return azx_rirb_get_response(bus, addr, res);
}
+static const struct hdac_bus_ops bus_core_ops = {
+ .command = azx_send_cmd,
+ .get_response = azx_get_response,
+};
+
#ifdef CONFIG_SND_HDA_DSP_LOADER
/*
* DSP loading code (e.g. for CA0132)
azx_dev->locked = 1;
spin_unlock_irq(&chip->reg_lock);
- err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV_SG,
- byte_size, bufp);
+ err = chip->io_ops->dma_alloc_pages(&bus->core, SNDRV_DMA_TYPE_DEV_SG,
+ byte_size, bufp);
if (err < 0)
goto err_alloc;
return azx_dev->stream_tag;
error:
- chip->ops->dma_free_pages(chip, bufp);
+ chip->io_ops->dma_free_pages(&bus->core, bufp);
err_alloc:
spin_lock_irq(&chip->reg_lock);
if (azx_dev->opened)
azx_dev->period_bytes = 0;
azx_dev->format_val = 0;
- chip->ops->dma_free_pages(chip, dmab);
+ chip->io_ops->dma_free_pages(&bus->core, dmab);
dmab->area = NULL;
spin_lock_irq(&chip->reg_lock);
int azx_alloc_stream_pages(struct azx *chip)
{
int i, err;
- struct snd_card *card = chip->card;
for (i = 0; i < chip->num_streams; i++) {
dsp_lock_init(&chip->azx_dev[i]);
/* allocate memory for the BDL for each stream */
- err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
+ err = chip->io_ops->dma_alloc_pages(azx_bus(chip), SNDRV_DMA_TYPE_DEV,
BDL_SIZE,
&chip->azx_dev[i].bdl);
- if (err < 0) {
- dev_err(card->dev, "cannot allocate BDL\n");
+ if (err < 0)
return -ENOMEM;
- }
}
/* allocate memory for the position buffer */
- err = chip->ops->dma_alloc_pages(chip, SNDRV_DMA_TYPE_DEV,
+ err = chip->io_ops->dma_alloc_pages(azx_bus(chip), SNDRV_DMA_TYPE_DEV,
chip->num_streams * 8, &chip->posbuf);
- if (err < 0) {
- dev_err(card->dev, "cannot allocate posbuf\n");
+ if (err < 0)
return -ENOMEM;
- }
/* allocate CORB/RIRB */
err = azx_alloc_cmd_io(chip);
if (chip->azx_dev) {
for (i = 0; i < chip->num_streams; i++)
if (chip->azx_dev[i].bdl.area)
- chip->ops->dma_free_pages(
- chip, &chip->azx_dev[i].bdl);
+ chip->io_ops->dma_free_pages(azx_bus(chip),
+ &chip->azx_dev[i].bdl);
}
if (chip->rb.area)
- chip->ops->dma_free_pages(chip, &chip->rb);
+ chip->io_ops->dma_free_pages(azx_bus(chip), &chip->rb);
if (chip->posbuf.area)
- chip->ops->dma_free_pages(chip, &chip->posbuf);
+ chip->io_ops->dma_free_pages(azx_bus(chip), &chip->posbuf);
}
EXPORT_SYMBOL_GPL(azx_free_stream_pages);
int i;
#ifdef CONFIG_PM
- if (chip->driver_caps & AZX_DCAPS_PM_RUNTIME)
+ if (azx_has_pm_runtime(chip))
if (!pm_runtime_active(chip->card->dev))
return IRQ_NONE;
#endif
{
unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
(AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
+ struct hdac_bus *bus = &chip->bus->core;
+ int err;
unsigned int res;
- mutex_lock(&chip->bus->cmd_mutex);
+ mutex_lock(&bus->cmd_mutex);
chip->probing = 1;
- azx_send_cmd(chip->bus, cmd);
- res = azx_get_response(chip->bus, addr);
+ azx_send_cmd(bus, cmd);
+ err = azx_get_response(bus, addr, &res);
chip->probing = 0;
- mutex_unlock(&chip->bus->cmd_mutex);
- if (res == -1)
+ mutex_unlock(&bus->cmd_mutex);
+ if (err < 0 || res == -1)
return -EIO;
dev_dbg(chip->card->dev, "codec #%d probed OK\n", addr);
return 0;
bus->in_reset = 1;
azx_stop_chip(chip);
azx_init_chip(chip, true);
-#ifdef CONFIG_PM
- if (chip->initialized) {
- struct azx_pcm *p;
- list_for_each_entry(p, &chip->pcm_list, list)
- snd_pcm_suspend_all(p->pcm);
- snd_hda_suspend(chip->bus);
- snd_hda_resume(chip->bus);
- }
-#endif
+ if (chip->initialized)
+ snd_hda_bus_reset(chip->bus);
bus->in_reset = 0;
}
-#ifdef CONFIG_PM
-/* power-up/down the controller */
-static void azx_power_notify(struct hda_bus *bus, bool power_up)
-{
- struct azx *chip = bus->private_data;
-
- if (!(chip->driver_caps & AZX_DCAPS_PM_RUNTIME))
- return;
-
- if (power_up)
- pm_runtime_get_sync(chip->card->dev);
- else
- pm_runtime_put_sync(chip->card->dev);
-}
-#endif
-
static int get_jackpoll_interval(struct azx *chip)
{
int i;
return j;
}
-/* Codec initialization */
-int azx_codec_create(struct azx *chip, const char *model,
- unsigned int max_slots,
- int *power_save_to)
-{
- struct hda_bus_template bus_temp;
- int c, codecs, err;
-
- memset(&bus_temp, 0, sizeof(bus_temp));
- bus_temp.private_data = chip;
- bus_temp.modelname = model;
- bus_temp.pci = chip->pci;
- bus_temp.ops.command = azx_send_cmd;
- bus_temp.ops.get_response = azx_get_response;
- bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
- bus_temp.ops.bus_reset = azx_bus_reset;
-#ifdef CONFIG_PM
- bus_temp.power_save = power_save_to;
- bus_temp.ops.pm_notify = azx_power_notify;
-#endif
+static struct hda_bus_ops bus_ops = {
+ .attach_pcm = azx_attach_pcm_stream,
+ .bus_reset = azx_bus_reset,
#ifdef CONFIG_SND_HDA_DSP_LOADER
- bus_temp.ops.load_dsp_prepare = azx_load_dsp_prepare;
- bus_temp.ops.load_dsp_trigger = azx_load_dsp_trigger;
- bus_temp.ops.load_dsp_cleanup = azx_load_dsp_cleanup;
+ .load_dsp_prepare = azx_load_dsp_prepare,
+ .load_dsp_trigger = azx_load_dsp_trigger,
+ .load_dsp_cleanup = azx_load_dsp_cleanup,
#endif
+};
+
+/* HD-audio bus initialization */
+int azx_bus_create(struct azx *chip, const char *model)
+{
+ struct hda_bus *bus;
+ int err;
- err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
+ err = snd_hda_bus_new(chip->card, &bus_core_ops, chip->io_ops, &bus);
if (err < 0)
return err;
+ chip->bus = bus;
+ bus->private_data = chip;
+ bus->pci = chip->pci;
+ bus->modelname = model;
+ bus->ops = bus_ops;
+
if (chip->driver_caps & AZX_DCAPS_RIRB_DELAY) {
dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
- chip->bus->needs_damn_long_delay = 1;
+ bus->needs_damn_long_delay = 1;
}
+ /* AMD chipsets often cause the communication stalls upon certain
+ * sequence like the pin-detection. It seems that forcing the synced
+ * access works around the stall. Grrr...
+ */
+ if (chip->driver_caps & AZX_DCAPS_SYNC_WRITE) {
+ dev_dbg(chip->card->dev, "Enable sync_write for stable communication\n");
+ bus->core.sync_write = 1;
+ bus->allow_bus_reset = 1;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(azx_bus_create);
+
+/* Probe codecs */
+int azx_probe_codecs(struct azx *chip, unsigned int max_slots)
+{
+ struct hda_bus *bus = chip->bus;
+ int c, codecs, err;
+
codecs = 0;
if (!max_slots)
max_slots = AZX_DEFAULT_CODECS;
}
}
- /* AMD chipsets often cause the communication stalls upon certain
- * sequence like the pin-detection. It seems that forcing the synced
- * access works around the stall. Grrr...
- */
- if (chip->driver_caps & AZX_DCAPS_SYNC_WRITE) {
- dev_dbg(chip->card->dev, "Enable sync_write for stable communication\n");
- chip->bus->sync_write = 1;
- chip->bus->allow_bus_reset = 1;
- }
-
/* Then create codec instances */
for (c = 0; c < max_slots; c++) {
if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
struct hda_codec *codec;
- err = snd_hda_codec_new(chip->bus, c, &codec);
+ err = snd_hda_codec_new(bus, bus->card, c, &codec);
if (err < 0)
continue;
codec->jackpoll_interval = get_jackpoll_interval(chip);
}
return 0;
}
-EXPORT_SYMBOL_GPL(azx_codec_create);
+EXPORT_SYMBOL_GPL(azx_probe_codecs);
/* configure each codec instance */
int azx_codec_configure(struct azx *chip)
{
struct hda_codec *codec;
- list_for_each_entry(codec, &chip->bus->codec_list, list) {
+ list_for_each_codec(codec, chip->bus) {
snd_hda_codec_configure(codec);
}
return 0;
}
EXPORT_SYMBOL_GPL(azx_codec_configure);
-/* mixer creation - all stuff is implemented in hda module */
-int azx_mixer_create(struct azx *chip)
-{
- return snd_hda_build_controls(chip->bus);
-}
-EXPORT_SYMBOL_GPL(azx_mixer_create);
-
static bool is_input_stream(struct azx *chip, unsigned char index)
{
return 0;
}
EXPORT_SYMBOL_GPL(azx_init_stream);
-
-/*
- * reboot notifier for hang-up problem at power-down
- */
-static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
-{
- struct azx *chip = container_of(nb, struct azx, reboot_notifier);
- snd_hda_bus_reboot_notify(chip->bus);
- azx_stop_chip(chip);
- return NOTIFY_OK;
-}
-
-void azx_notifier_register(struct azx *chip)
-{
- chip->reboot_notifier.notifier_call = azx_halt;
- register_reboot_notifier(&chip->reboot_notifier);
-}
-EXPORT_SYMBOL_GPL(azx_notifier_register);
-
-void azx_notifier_unregister(struct azx *chip)
-{
- if (chip->reboot_notifier.notifier_call)
- unregister_reboot_notifier(&chip->reboot_notifier);
-}
-EXPORT_SYMBOL_GPL(azx_notifier_unregister);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Common HDA driver functions");
projects / firefly-linux-kernel-4.4.55.git / blobdiff