diff options
Diffstat (limited to 'sound/pci/hda/hda_controller.c')
| -rw-r--r-- | sound/pci/hda/hda_controller.c | 239 |
1 files changed, 227 insertions, 12 deletions
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c index 43b99b49534..6156d0a2c0f 100644 --- a/sound/pci/hda/hda_controller.c +++ b/sound/pci/hda/hda_controller.c @@ -25,6 +25,7 @@ #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/pm_runtime.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/initval.h> @@ -1022,7 +1023,6 @@ int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec, pcm->dev = &codec->dev; return 0; } -EXPORT_SYMBOL_GPL(azx_attach_pcm_stream); /* * CORB / RIRB interface @@ -1380,7 +1380,7 @@ static unsigned int azx_single_get_response(struct hda_bus *bus, */ /* send a command */ -int azx_send_cmd(struct hda_bus *bus, unsigned int val) +static int azx_send_cmd(struct hda_bus *bus, unsigned int val) { struct azx *chip = bus->private_data; @@ -1395,7 +1395,7 @@ int azx_send_cmd(struct hda_bus *bus, unsigned int val) EXPORT_SYMBOL_GPL(azx_send_cmd); /* get a response */ -unsigned int azx_get_response(struct hda_bus *bus, +static unsigned int azx_get_response(struct hda_bus *bus, unsigned int addr) { struct azx *chip = bus->private_data; @@ -1420,9 +1420,9 @@ azx_get_dsp_loader_dev(struct azx *chip) return &chip->azx_dev[chip->playback_index_offset]; } -int azx_load_dsp_prepare(struct hda_bus *bus, unsigned int format, - unsigned int byte_size, - struct snd_dma_buffer *bufp) +static int azx_load_dsp_prepare(struct hda_bus *bus, unsigned int format, + unsigned int byte_size, + struct snd_dma_buffer *bufp) { u32 *bdl; struct azx *chip = bus->private_data; @@ -1480,9 +1480,8 @@ int azx_load_dsp_prepare(struct hda_bus *bus, unsigned int format, dsp_unlock(azx_dev); return err; } -EXPORT_SYMBOL_GPL(azx_load_dsp_prepare); -void azx_load_dsp_trigger(struct hda_bus *bus, bool start) +static void azx_load_dsp_trigger(struct hda_bus *bus, bool start) { struct azx *chip = bus->private_data; struct azx_dev *azx_dev = azx_get_dsp_loader_dev(chip); @@ -1493,10 +1492,9 @@ void azx_load_dsp_trigger(struct hda_bus *bus, bool start) azx_stream_stop(chip, azx_dev); azx_dev->running = start; } -EXPORT_SYMBOL_GPL(azx_load_dsp_trigger); -void azx_load_dsp_cleanup(struct hda_bus *bus, - struct snd_dma_buffer *dmab) +static void azx_load_dsp_cleanup(struct hda_bus *bus, + struct snd_dma_buffer *dmab) { struct azx *chip = bus->private_data; struct azx_dev *azx_dev = azx_get_dsp_loader_dev(chip); @@ -1523,7 +1521,6 @@ void azx_load_dsp_cleanup(struct hda_bus *bus, spin_unlock_irq(&chip->reg_lock); dsp_unlock(azx_dev); } -EXPORT_SYMBOL_GPL(azx_load_dsp_cleanup); #endif /* CONFIG_SND_HDA_DSP_LOADER */ int azx_alloc_stream_pages(struct azx *chip) @@ -1746,6 +1743,7 @@ void azx_stop_chip(struct azx *chip) chip->initialized = 0; } +EXPORT_SYMBOL_GPL(azx_stop_chip); /* * interrupt handler @@ -1812,5 +1810,222 @@ irqreturn_t azx_interrupt(int irq, void *dev_id) } EXPORT_SYMBOL_GPL(azx_interrupt); +/* + * Codec initerface + */ + +/* + * Probe the given codec address + */ +static int probe_codec(struct azx *chip, int addr) +{ + unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) | + (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID; + unsigned int res; + + mutex_lock(&chip->bus->cmd_mutex); + chip->probing = 1; + azx_send_cmd(chip->bus, cmd); + res = azx_get_response(chip->bus, addr); + chip->probing = 0; + mutex_unlock(&chip->bus->cmd_mutex); + if (res == -1) + return -EIO; + dev_dbg(chip->card->dev, "codec #%d probed OK\n", addr); + return 0; +} + +static void azx_bus_reset(struct hda_bus *bus) +{ + struct azx *chip = bus->private_data; + + bus->in_reset = 1; + azx_stop_chip(chip); + azx_init_chip(chip, 1); +#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 + 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; + unsigned int j; + + if (!chip->jackpoll_ms) + return 0; + + i = chip->jackpoll_ms[chip->dev_index]; + if (i == 0) + return 0; + if (i < 50 || i > 60000) + j = 0; + else + j = msecs_to_jiffies(i); + if (j == 0) + dev_warn(chip->card->dev, + "jackpoll_ms value out of range: %d\n", 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 +#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; +#endif + + err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus); + if (err < 0) + return err; + + 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; + } + + codecs = 0; + if (!max_slots) + max_slots = AZX_DEFAULT_CODECS; + + /* First try to probe all given codec slots */ + for (c = 0; c < max_slots; c++) { + if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) { + if (probe_codec(chip, c) < 0) { + /* Some BIOSen give you wrong codec addresses + * that don't exist + */ + dev_warn(chip->card->dev, + "Codec #%d probe error; disabling it...\n", c); + chip->codec_mask &= ~(1 << c); + /* More badly, accessing to a non-existing + * codec often screws up the controller chip, + * and disturbs the further communications. + * Thus if an error occurs during probing, + * better to reset the controller chip to + * get back to the sanity state. + */ + azx_stop_chip(chip); + azx_init_chip(chip, 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"); + 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); + if (err < 0) + continue; + codec->jackpoll_interval = get_jackpoll_interval(chip); + codec->beep_mode = chip->beep_mode; + codecs++; + } + } + if (!codecs) { + dev_err(chip->card->dev, "no codecs initialized\n"); + return -ENXIO; + } + return 0; +} +EXPORT_SYMBOL_GPL(azx_codec_create); + +/* 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) { + 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); + + +/* initialize SD streams */ +int azx_init_stream(struct azx *chip) +{ + int i; + + /* initialize each stream (aka device) + * assign the starting bdl address to each stream (device) + * and initialize + */ + for (i = 0; i < chip->num_streams; i++) { + struct azx_dev *azx_dev = &chip->azx_dev[i]; + azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8); + /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */ + azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80); + /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */ + azx_dev->sd_int_sta_mask = 1 << i; + /* stream tag: must be non-zero and unique */ + azx_dev->index = i; + azx_dev->stream_tag = i + 1; + } + + return 0; +} +EXPORT_SYMBOL_GPL(azx_init_stream); + MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Common HDA driver funcitons"); |