diff options
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 32 | ||||
| -rw-r--r-- | sound/pci/hda/hda_codec.h | 6 | ||||
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 40 |
3 files changed, 55 insertions, 23 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index d1d5fb9d7afb..aa0e1c18b606 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -165,28 +165,29 @@ static int codec_exec_verb(struct hda_codec *codec, unsigned int cmd, unsigned int *res) { struct hda_bus *bus = codec->bus; - int err, repeated = 0; + int err; if (res) *res = -1; + again: snd_hda_power_up(codec); mutex_lock(&bus->cmd_mutex); - again: err = bus->ops.command(bus, cmd); - if (!err) { - if (res) { - *res = bus->ops.get_response(bus); - if (*res == -1 && bus->rirb_error) { - if (repeated++ < 1) { - snd_printd(KERN_WARNING "hda_codec: " - "Trying verb 0x%08x again\n", cmd); - goto again; - } - } - } - } + if (!err && res) + *res = bus->ops.get_response(bus); mutex_unlock(&bus->cmd_mutex); snd_hda_power_down(codec); + if (res && *res == -1 && bus->rirb_error) { + if (bus->response_reset) { + snd_printd("hda_codec: resetting BUS due to " + "fatal communication error\n"); + bus->ops.bus_reset(bus); + } + goto again; + } + /* clear reset-flag when the communication gets recovered */ + if (!err) + bus->response_reset = 0; return err; } @@ -3894,11 +3895,10 @@ EXPORT_SYMBOL_HDA(auto_pin_cfg_labels); /** * snd_hda_suspend - suspend the codecs * @bus: the HDA bus - * @state: suspsend state * * Returns 0 if successful. */ -int snd_hda_suspend(struct hda_bus *bus, pm_message_t state) +int snd_hda_suspend(struct hda_bus *bus) { struct hda_codec *codec; diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index c5bd40f77bb9..f5fa5d1f223c 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -574,6 +574,8 @@ struct hda_bus_ops { /* attach a PCM stream */ int (*attach_pcm)(struct hda_bus *bus, struct hda_codec *codec, struct hda_pcm *pcm); + /* reset bus for retry verb */ + void (*bus_reset)(struct hda_bus *bus); #ifdef CONFIG_SND_HDA_POWER_SAVE /* notify power-up/down from codec to controller */ void (*pm_notify)(struct hda_bus *bus); @@ -624,6 +626,8 @@ struct hda_bus { unsigned int needs_damn_long_delay :1; unsigned int shutdown :1; /* being unloaded */ unsigned int rirb_error:1; /* error in codec communication */ + unsigned int response_reset:1; /* controller was reset */ + unsigned int in_reset:1; /* during reset operation */ }; /* @@ -907,7 +911,7 @@ void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen); * power management */ #ifdef CONFIG_PM -int snd_hda_suspend(struct hda_bus *bus, pm_message_t state); +int snd_hda_suspend(struct hda_bus *bus); int snd_hda_resume(struct hda_bus *bus); #endif diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index b063d0e3d325..44f9a0aa20c5 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -661,14 +661,23 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus) return -1; } - snd_printk(KERN_ERR SFX "azx_get_response timeout (ERROR): " - "last cmd=0x%08x\n", chip->last_cmd); - /* re-initialize CORB/RIRB */ - spin_lock_irq(&chip->reg_lock); + /* a fatal communication error; need either to reset or to fallback + * to the single_cmd mode + */ bus->rirb_error = 1; + if (!bus->response_reset && !bus->in_reset) { + bus->response_reset = 1; + return -1; /* give a chance to retry */ + } + + snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, " + "switching to single_cmd mode: last cmd=0x%08x\n", + chip->last_cmd); + chip->single_cmd = 1; + bus->response_reset = 0; + /* re-initialize CORB/RIRB */ azx_free_cmd_io(chip); azx_init_cmd_io(chip); - spin_unlock_irq(&chip->reg_lock); return -1; } @@ -709,6 +718,7 @@ static int azx_single_send_cmd(struct hda_bus *bus, u32 val) struct azx *chip = bus->private_data; int timeout = 50; + bus->rirb_error = 0; while (timeout--) { /* check ICB busy bit */ if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) { @@ -1247,6 +1257,23 @@ static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec, struct hda_pcm *cpcm); static void azx_stop_chip(struct azx *chip); +static void azx_bus_reset(struct hda_bus *bus) +{ + struct azx *chip = bus->private_data; + int i; + + bus->in_reset = 1; + azx_stop_chip(chip); + azx_init_chip(chip); + if (chip->initialized) { + for (i = 0; i < AZX_MAX_PCMS; i++) + snd_pcm_suspend_all(chip->pcm[i]); + snd_hda_suspend(chip->bus); + snd_hda_resume(chip->bus); + } + bus->in_reset = 0; +} + /* * Codec initialization */ @@ -1270,6 +1297,7 @@ static int __devinit azx_codec_create(struct azx *chip, const char *model, 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_SND_HDA_POWER_SAVE bus_temp.power_save = &power_save; bus_temp.ops.pm_notify = azx_power_notify; @@ -1997,7 +2025,7 @@ static int azx_suspend(struct pci_dev *pci, pm_message_t state) for (i = 0; i < AZX_MAX_PCMS; i++) snd_pcm_suspend_all(chip->pcm[i]); if (chip->initialized) - snd_hda_suspend(chip->bus, state); + snd_hda_suspend(chip->bus); azx_stop_chip(chip); if (chip->irq >= 0) { free_irq(chip->irq, chip); |