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path: root/sound/pci/hda/hda_codec.c
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Diffstat (limited to 'sound/pci/hda/hda_codec.c')
-rw-r--r--sound/pci/hda/hda_codec.c69
1 files changed, 42 insertions, 27 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 55108b5fb291..8a005f0e5ca4 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -185,20 +185,19 @@ EXPORT_SYMBOL_HDA(snd_hda_get_jack_type);
* Compose a 32bit command word to be sent to the HD-audio controller
*/
static inline unsigned int
-make_codec_cmd(struct hda_codec *codec, hda_nid_t nid, int direct,
+make_codec_cmd(struct hda_codec *codec, hda_nid_t nid, int flags,
unsigned int verb, unsigned int parm)
{
u32 val;
- if ((codec->addr & ~0xf) || (direct & ~1) || (nid & ~0x7f) ||
+ if ((codec->addr & ~0xf) || (nid & ~0x7f) ||
(verb & ~0xfff) || (parm & ~0xffff)) {
- printk(KERN_ERR "hda-codec: out of range cmd %x:%x:%x:%x:%x\n",
- codec->addr, direct, nid, verb, parm);
+ printk(KERN_ERR "hda-codec: out of range cmd %x:%x:%x:%x\n",
+ codec->addr, nid, verb, parm);
return ~0;
}
val = (u32)codec->addr << 28;
- val |= (u32)direct << 27;
val |= (u32)nid << 20;
val |= verb << 8;
val |= parm;
@@ -209,7 +208,7 @@ make_codec_cmd(struct hda_codec *codec, hda_nid_t nid, int direct,
* Send and receive a verb
*/
static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd,
- unsigned int *res)
+ int flags, unsigned int *res)
{
struct hda_bus *bus = codec->bus;
int err;
@@ -222,6 +221,8 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd,
again:
snd_hda_power_up(codec);
mutex_lock(&bus->cmd_mutex);
+ if (flags & HDA_RW_NO_RESPONSE_FALLBACK)
+ bus->no_response_fallback = 1;
for (;;) {
trace_hda_send_cmd(codec, cmd);
err = bus->ops.command(bus, cmd);
@@ -234,6 +235,7 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd,
*res = bus->ops.get_response(bus, codec->addr);
trace_hda_get_response(codec, *res);
}
+ bus->no_response_fallback = 0;
mutex_unlock(&bus->cmd_mutex);
snd_hda_power_down(codec);
if (!codec_in_pm(codec) && res && *res == -1 && bus->rirb_error) {
@@ -255,7 +257,7 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd,
* snd_hda_codec_read - send a command and get the response
* @codec: the HDA codec
* @nid: NID to send the command
- * @direct: direct flag
+ * @flags: optional bit flags
* @verb: the verb to send
* @parm: the parameter for the verb
*
@@ -264,12 +266,12 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd,
* Returns the obtained response value, or -1 for an error.
*/
unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
- int direct,
+ int flags,
unsigned int verb, unsigned int parm)
{
- unsigned cmd = make_codec_cmd(codec, nid, direct, verb, parm);
+ unsigned cmd = make_codec_cmd(codec, nid, flags, verb, parm);
unsigned int res;
- if (codec_exec_verb(codec, cmd, &res))
+ if (codec_exec_verb(codec, cmd, flags, &res))
return -1;
return res;
}
@@ -279,7 +281,7 @@ EXPORT_SYMBOL_HDA(snd_hda_codec_read);
* snd_hda_codec_write - send a single command without waiting for response
* @codec: the HDA codec
* @nid: NID to send the command
- * @direct: direct flag
+ * @flags: optional bit flags
* @verb: the verb to send
* @parm: the parameter for the verb
*
@@ -287,12 +289,12 @@ EXPORT_SYMBOL_HDA(snd_hda_codec_read);
*
* Returns 0 if successful, or a negative error code.
*/
-int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
- unsigned int verb, unsigned int parm)
+int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
+ unsigned int verb, unsigned int parm)
{
- unsigned int cmd = make_codec_cmd(codec, nid, direct, verb, parm);
+ unsigned int cmd = make_codec_cmd(codec, nid, flags, verb, parm);
unsigned int res;
- return codec_exec_verb(codec, cmd,
+ return codec_exec_verb(codec, cmd, flags,
codec->bus->sync_write ? &res : NULL);
}
EXPORT_SYMBOL_HDA(snd_hda_codec_write);
@@ -2523,7 +2525,7 @@ int snd_hda_codec_reset(struct hda_codec *codec)
flush_workqueue(bus->workq);
#endif
snd_hda_ctls_clear(codec);
- /* relase PCMs */
+ /* release PCMs */
for (i = 0; i < codec->num_pcms; i++) {
if (codec->pcm_info[i].pcm) {
snd_device_free(card, codec->pcm_info[i].pcm);
@@ -3582,7 +3584,7 @@ EXPORT_SYMBOL_HDA(snd_hda_create_spdif_in_ctls);
* snd_hda_codec_write_cache - send a single command with caching
* @codec: the HDA codec
* @nid: NID to send the command
- * @direct: direct flag
+ * @flags: optional bit flags
* @verb: the verb to send
* @parm: the parameter for the verb
*
@@ -3591,7 +3593,7 @@ EXPORT_SYMBOL_HDA(snd_hda_create_spdif_in_ctls);
* Returns 0 if successful, or a negative error code.
*/
int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
- int direct, unsigned int verb, unsigned int parm)
+ int flags, unsigned int verb, unsigned int parm)
{
int err;
struct hda_cache_head *c;
@@ -3600,7 +3602,7 @@ int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
cache_only = codec->cached_write;
if (!cache_only) {
- err = snd_hda_codec_write(codec, nid, direct, verb, parm);
+ err = snd_hda_codec_write(codec, nid, flags, verb, parm);
if (err < 0)
return err;
}
@@ -3624,7 +3626,7 @@ EXPORT_SYMBOL_HDA(snd_hda_codec_write_cache);
* snd_hda_codec_update_cache - check cache and write the cmd only when needed
* @codec: the HDA codec
* @nid: NID to send the command
- * @direct: direct flag
+ * @flags: optional bit flags
* @verb: the verb to send
* @parm: the parameter for the verb
*
@@ -3635,7 +3637,7 @@ EXPORT_SYMBOL_HDA(snd_hda_codec_write_cache);
* Returns 0 if successful, or a negative error code.
*/
int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
- int direct, unsigned int verb, unsigned int parm)
+ int flags, unsigned int verb, unsigned int parm)
{
struct hda_cache_head *c;
u32 key;
@@ -3651,7 +3653,7 @@ int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
return 0;
}
mutex_unlock(&codec->bus->cmd_mutex);
- return snd_hda_codec_write_cache(codec, nid, direct, verb, parm);
+ return snd_hda_codec_write_cache(codec, nid, flags, verb, parm);
}
EXPORT_SYMBOL_HDA(snd_hda_codec_update_cache);
@@ -3806,11 +3808,13 @@ static unsigned int hda_set_power_state(struct hda_codec *codec,
hda_nid_t fg = codec->afg ? codec->afg : codec->mfg;
int count;
unsigned int state;
+ int flags = 0;
/* this delay seems necessary to avoid click noise at power-down */
if (power_state == AC_PWRST_D3) {
/* transition time less than 10ms for power down */
msleep(codec->epss ? 10 : 100);
+ flags = HDA_RW_NO_RESPONSE_FALLBACK;
}
/* repeat power states setting at most 10 times*/
@@ -3819,7 +3823,7 @@ static unsigned int hda_set_power_state(struct hda_codec *codec,
codec->patch_ops.set_power_state(codec, fg,
power_state);
else {
- snd_hda_codec_read(codec, fg, 0,
+ snd_hda_codec_read(codec, fg, flags,
AC_VERB_SET_POWER_STATE,
power_state);
snd_hda_codec_set_power_to_all(codec, fg, power_state);
@@ -4461,12 +4465,13 @@ const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
/*
* get the empty PCM device number to assign
- *
- * note the max device number is limited by HDA_MAX_PCMS, currently 10
*/
-static int get_empty_pcm_device(struct hda_bus *bus, int type)
+static int get_empty_pcm_device(struct hda_bus *bus, unsigned int type)
{
/* audio device indices; not linear to keep compatibility */
+ /* assigned to static slots up to dev#10; if more needed, assign
+ * the later slot dynamically (when CONFIG_SND_DYNAMIC_MINORS=y)
+ */
static int audio_idx[HDA_PCM_NTYPES][5] = {
[HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
[HDA_PCM_TYPE_SPDIF] = { 1, -1 },
@@ -4480,18 +4485,28 @@ static int get_empty_pcm_device(struct hda_bus *bus, int type)
return -EINVAL;
}
- for (i = 0; audio_idx[type][i] >= 0 ; i++)
+ for (i = 0; audio_idx[type][i] >= 0; i++) {
+#ifndef CONFIG_SND_DYNAMIC_MINORS
+ if (audio_idx[type][i] >= 8)
+ break;
+#endif
if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
return audio_idx[type][i];
+ }
+#ifdef CONFIG_SND_DYNAMIC_MINORS
/* non-fixed slots starting from 10 */
for (i = 10; i < 32; i++) {
if (!test_and_set_bit(i, bus->pcm_dev_bits))
return i;
}
+#endif
snd_printk(KERN_WARNING "Too many %s devices\n",
snd_hda_pcm_type_name[type]);
+#ifndef CONFIG_SND_DYNAMIC_MINORS
+ snd_printk(KERN_WARNING "Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y\n");
+#endif
return -EAGAIN;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-21 09:01:06 +0300