diff options
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 66 | ||||
| -rw-r--r-- | sound/pci/hda/hda_codec.h | 3 | ||||
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 314 |
3 files changed, 316 insertions, 67 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index eb09a33..41ca803 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2239,24 +2239,50 @@ void snd_hda_ctls_clear(struct hda_codec *codec) /* pseudo device locking * toggle card->shutdown to allow/disallow the device access (as a hack) */ -static int hda_lock_devices(struct snd_card *card) +int snd_hda_lock_devices(struct hda_bus *bus) { + struct snd_card *card = bus->card; + struct hda_codec *codec; + spin_lock(&card->files_lock); - if (card->shutdown) { - spin_unlock(&card->files_lock); - return -EINVAL; - } + if (card->shutdown) + goto err_unlock; card->shutdown = 1; + if (!list_empty(&card->ctl_files)) + goto err_clear; + + list_for_each_entry(codec, &bus->codec_list, list) { + int pcm; + for (pcm = 0; pcm < codec->num_pcms; pcm++) { + struct hda_pcm *cpcm = &codec->pcm_info[pcm]; + if (!cpcm->pcm) + continue; + if (cpcm->pcm->streams[0].substream_opened || + cpcm->pcm->streams[1].substream_opened) + goto err_clear; + } + } spin_unlock(&card->files_lock); return 0; + + err_clear: + card->shutdown = 0; + err_unlock: + spin_unlock(&card->files_lock); + return -EINVAL; } +EXPORT_SYMBOL_HDA(snd_hda_lock_devices); -static void hda_unlock_devices(struct snd_card *card) +void snd_hda_unlock_devices(struct hda_bus *bus) { + struct snd_card *card = bus->card; + + card = bus->card; spin_lock(&card->files_lock); card->shutdown = 0; spin_unlock(&card->files_lock); } +EXPORT_SYMBOL_HDA(snd_hda_unlock_devices); /** * snd_hda_codec_reset - Clear all objects assigned to the codec @@ -2270,26 +2296,12 @@ static void hda_unlock_devices(struct snd_card *card) */ int snd_hda_codec_reset(struct hda_codec *codec) { - struct snd_card *card = codec->bus->card; - int i, pcm; + struct hda_bus *bus = codec->bus; + struct snd_card *card = bus->card; + int i; - if (hda_lock_devices(card) < 0) - return -EBUSY; - /* check whether the codec isn't used by any mixer or PCM streams */ - if (!list_empty(&card->ctl_files)) { - hda_unlock_devices(card); + if (snd_hda_lock_devices(bus) < 0) return -EBUSY; - } - for (pcm = 0; pcm < codec->num_pcms; pcm++) { - struct hda_pcm *cpcm = &codec->pcm_info[pcm]; - if (!cpcm->pcm) - continue; - if (cpcm->pcm->streams[0].substream_opened || - cpcm->pcm->streams[1].substream_opened) { - hda_unlock_devices(card); - return -EBUSY; - } - } /* OK, let it free */ @@ -2298,7 +2310,7 @@ int snd_hda_codec_reset(struct hda_codec *codec) codec->power_on = 0; codec->power_transition = 0; codec->power_jiffies = jiffies; - flush_workqueue(codec->bus->workq); + flush_workqueue(bus->workq); #endif snd_hda_ctls_clear(codec); /* relase PCMs */ @@ -2306,7 +2318,7 @@ int snd_hda_codec_reset(struct hda_codec *codec) if (codec->pcm_info[i].pcm) { snd_device_free(card, codec->pcm_info[i].pcm); clear_bit(codec->pcm_info[i].device, - codec->bus->pcm_dev_bits); + bus->pcm_dev_bits); } } if (codec->patch_ops.free) @@ -2331,7 +2343,7 @@ int snd_hda_codec_reset(struct hda_codec *codec) codec->owner = NULL; /* allow device access again */ - hda_unlock_devices(card); + snd_hda_unlock_devices(bus); return 0; } diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 54b5281..4fc3960 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -1023,6 +1023,9 @@ void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg, unsigned int power_state, bool eapd_workaround); +int snd_hda_lock_devices(struct hda_bus *bus); +void snd_hda_unlock_devices(struct hda_bus *bus); + /* * power management */ diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 4ab8102..2b6392b 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -53,6 +53,8 @@ #endif #include <sound/core.h> #include <sound/initval.h> +#include <linux/vgaarb.h> +#include <linux/vga_switcheroo.h> #include "hda_codec.h" @@ -175,6 +177,13 @@ MODULE_DESCRIPTION("Intel HDA driver"); #define SFX "hda-intel: " #endif +#if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO) +#ifdef CONFIG_SND_HDA_CODEC_HDMI +#define SUPPORT_VGA_SWITCHEROO +#endif +#endif + + /* * registers */ @@ -472,6 +481,12 @@ struct azx { unsigned int probing :1; /* codec probing phase */ unsigned int snoop:1; unsigned int align_buffer_size:1; + unsigned int region_requested:1; + + /* VGA-switcheroo setup */ + unsigned int use_vga_switcheroo:1; + unsigned int init_failed:1; /* delayed init failed */ + unsigned int disabled:1; /* disabled by VGA-switcher */ /* for debugging */ unsigned int last_cmd[AZX_MAX_CODECS]; @@ -538,7 +553,20 @@ enum { #define AZX_DCAPS_PRESET_CTHDA \ (AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_4K_BDLE_BOUNDARY) -static char *driver_short_names[] __devinitdata = { +/* + * VGA-switcher support + */ +#ifdef SUPPORT_VGA_SWITCHEROO +#define DELAYED_INIT_MARK +#define DELAYED_INITDATA_MARK +#define use_vga_switcheroo(chip) ((chip)->use_vga_switcheroo) +#else +#define DELAYED_INIT_MARK __devinit +#define DELAYED_INITDATA_MARK __devinitdata +#define use_vga_switcheroo(chip) 0 +#endif + +static char *driver_short_names[] DELAYED_INITDATA_MARK = { [AZX_DRIVER_ICH] = "HDA Intel", [AZX_DRIVER_PCH] = "HDA Intel PCH", [AZX_DRIVER_SCH] = "HDA Intel MID", @@ -959,6 +987,8 @@ static int azx_send_cmd(struct hda_bus *bus, unsigned int val) { struct azx *chip = bus->private_data; + if (chip->disabled) + return 0; chip->last_cmd[azx_command_addr(val)] = val; if (chip->single_cmd) return azx_single_send_cmd(bus, val); @@ -971,6 +1001,8 @@ static unsigned int azx_get_response(struct hda_bus *bus, unsigned int addr) { struct azx *chip = bus->private_data; + if (chip->disabled) + return 0; if (chip->single_cmd) return azx_single_get_response(bus, addr); else @@ -1236,6 +1268,11 @@ static irqreturn_t azx_interrupt(int irq, void *dev_id) spin_lock(&chip->reg_lock); + if (chip->disabled) { + spin_unlock(&chip->reg_lock); + return IRQ_NONE; + } + status = azx_readl(chip, INTSTS); if (status == 0) { spin_unlock(&chip->reg_lock); @@ -1521,12 +1558,12 @@ static void azx_bus_reset(struct hda_bus *bus) */ /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */ -static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] __devinitdata = { +static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] DELAYED_INITDATA_MARK = { [AZX_DRIVER_NVIDIA] = 8, [AZX_DRIVER_TERA] = 1, }; -static int __devinit azx_codec_create(struct azx *chip, const char *model) +static int DELAYED_INIT_MARK azx_codec_create(struct azx *chip, const char *model) { struct hda_bus_template bus_temp; int c, codecs, err; @@ -2444,6 +2481,105 @@ static void azx_notifier_unregister(struct azx *chip) unregister_reboot_notifier(&chip->reboot_notifier); } +static int DELAYED_INIT_MARK azx_first_init(struct azx *chip); +static int DELAYED_INIT_MARK azx_probe_continue(struct azx *chip); + +static struct pci_dev __devinit *get_bound_vga(struct pci_dev *pci); + +#ifdef SUPPORT_VGA_SWITCHEROO +static void azx_vs_set_state(struct pci_dev *pci, + enum vga_switcheroo_state state) +{ + struct snd_card *card = pci_get_drvdata(pci); + struct azx *chip = card->private_data; + bool disabled; + + if (chip->init_failed) + return; + + disabled = (state == VGA_SWITCHEROO_OFF); + if (chip->disabled == disabled) + return; + + if (!chip->bus) { + chip->disabled = disabled; + if (!disabled) { + snd_printk(KERN_INFO SFX + "%s: Start delayed initialization\n", + pci_name(chip->pci)); + if (azx_first_init(chip) < 0 || + azx_probe_continue(chip) < 0) { + snd_printk(KERN_ERR SFX + "%s: initialization error\n", + pci_name(chip->pci)); + chip->init_failed = true; + } + } + } else { + snd_printk(KERN_INFO SFX + "%s %s via VGA-switcheroo\n", + disabled ? "Disabling" : "Enabling", + pci_name(chip->pci)); + if (disabled) { + azx_suspend(pci, PMSG_FREEZE); + chip->disabled = true; + snd_hda_lock_devices(chip->bus); + } else { + snd_hda_unlock_devices(chip->bus); + chip->disabled = false; + azx_resume(pci); + } + } +} + +static bool azx_vs_can_switch(struct pci_dev *pci) +{ + struct snd_card *card = pci_get_drvdata(pci); + struct azx *chip = card->private_data; + + if (chip->init_failed) + return false; + if (chip->disabled || !chip->bus) + return true; + if (snd_hda_lock_devices(chip->bus)) + return false; + snd_hda_unlock_devices(chip->bus); + return true; +} + +static void __devinit init_vga_switcheroo(struct azx *chip) +{ + struct pci_dev *p = get_bound_vga(chip->pci); + if (p) { + snd_printk(KERN_INFO SFX + "%s: Handle VGA-switcheroo audio client\n", + pci_name(chip->pci)); + chip->use_vga_switcheroo = 1; + pci_dev_put(p); + } +} + +static const struct vga_switcheroo_client_ops azx_vs_ops = { + .set_gpu_state = azx_vs_set_state, + .can_switch = azx_vs_can_switch, +}; + +static int __devinit register_vga_switcheroo(struct azx *chip) +{ + if (!chip->use_vga_switcheroo) + return 0; + /* FIXME: currently only handling DIS controller + * is there any machine with two switchable HDMI audio controllers? + */ + return vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, + VGA_SWITCHEROO_DIS, + chip->bus != NULL); +} +#else +#define init_vga_switcheroo(chip) /* NOP */ +#define register_vga_switcheroo(chip) 0 +#endif /* SUPPORT_VGA_SWITCHER */ + /* * destructor */ @@ -2453,6 +2589,12 @@ static int azx_free(struct azx *chip) azx_notifier_unregister(chip); + if (use_vga_switcheroo(chip)) { + if (chip->disabled && chip->bus) + snd_hda_unlock_devices(chip->bus); + vga_switcheroo_unregister_client(chip->pci); + } + if (chip->initialized) { azx_clear_irq_pending(chip); for (i = 0; i < chip->num_streams; i++) @@ -2482,7 +2624,8 @@ static int azx_free(struct azx *chip) mark_pages_wc(chip, &chip->posbuf, false); snd_dma_free_pages(&chip->posbuf); } - pci_release_regions(chip->pci); + if (chip->region_requested) + pci_release_regions(chip->pci); pci_disable_device(chip->pci); kfree(chip->azx_dev); kfree(chip); @@ -2496,6 +2639,45 @@ static int azx_dev_free(struct snd_device *device) } /* + * Check of disabled HDMI controller by vga-switcheroo + */ +static struct pci_dev __devinit *get_bound_vga(struct pci_dev *pci) +{ + struct pci_dev *p; + + /* check only discrete GPU */ + switch (pci->vendor) { + case PCI_VENDOR_ID_ATI: + case PCI_VENDOR_ID_AMD: + case PCI_VENDOR_ID_NVIDIA: + if (pci->devfn == 1) { + p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus), + pci->bus->number, 0); + if (p) { + if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA) + return p; + pci_dev_put(p); + } + } + break; + } + return NULL; +} + +static bool __devinit check_hdmi_disabled(struct pci_dev *pci) +{ + bool vga_inactive = false; + struct pci_dev *p = get_bound_vga(pci); + + if (p) { + if (vga_default_device() && p != vga_default_device()) + vga_inactive = true; + pci_dev_put(p); + } + return vga_inactive; +} + +/* * white/black-listing for position_fix */ static struct snd_pci_quirk position_fix_list[] __devinitdata = { @@ -2672,12 +2854,11 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, int dev, unsigned int driver_caps, struct azx **rchip) { - struct azx *chip; - int i, err; - unsigned short gcap; static struct snd_device_ops ops = { .dev_free = azx_dev_free, }; + struct azx *chip; + int err; *rchip = NULL; @@ -2703,6 +2884,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, chip->dev_index = dev; INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work); INIT_LIST_HEAD(&chip->pcm_list); + init_vga_switcheroo(chip); chip->position_fix[0] = chip->position_fix[1] = check_position_fix(chip, position_fix[dev]); @@ -2730,6 +2912,53 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, } } + if (check_hdmi_disabled(pci)) { + snd_printk(KERN_INFO SFX "VGA controller for %s is disabled\n", + pci_name(pci)); + if (use_vga_switcheroo(chip)) { + snd_printk(KERN_INFO SFX "Delaying initialization\n"); + chip->disabled = true; + goto ok; + } + kfree(chip); + pci_disable_device(pci); + return -ENXIO; + } + + err = azx_first_init(chip); + if (err < 0) { + azx_free(chip); + return err; + } + + ok: + err = register_vga_switcheroo(chip); + if (err < 0) { + snd_printk(KERN_ERR SFX + "Error registering VGA-switcheroo client\n"); + azx_free(chip); + return err; + } + + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); + if (err < 0) { + snd_printk(KERN_ERR SFX "Error creating device [card]!\n"); + azx_free(chip); + return err; + } + + *rchip = chip; + return 0; +} + +static int DELAYED_INIT_MARK azx_first_init(struct azx *chip) +{ + int dev = chip->dev_index; + struct pci_dev *pci = chip->pci; + struct snd_card *card = chip->card; + int i, err; + unsigned short gcap; + #if BITS_PER_LONG != 64 /* Fix up base address on ULI M5461 */ if (chip->driver_type == AZX_DRIVER_ULI) { @@ -2741,28 +2970,23 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, #endif err = pci_request_regions(pci, "ICH HD audio"); - if (err < 0) { - kfree(chip); - pci_disable_device(pci); + if (err < 0) return err; - } + chip->region_requested = 1; chip->addr = pci_resource_start(pci, 0); chip->remap_addr = pci_ioremap_bar(pci, 0); if (chip->remap_addr == NULL) { snd_printk(KERN_ERR SFX "ioremap error\n"); - err = -ENXIO; - goto errout; + return -ENXIO; } if (chip->msi) if (pci_enable_msi(pci) < 0) chip->msi = 0; - if (azx_acquire_irq(chip, 0) < 0) { - err = -EBUSY; - goto errout; - } + if (azx_acquire_irq(chip, 0) < 0) + return -EBUSY; pci_set_master(pci); synchronize_irq(chip->irq); @@ -2841,7 +3065,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, GFP_KERNEL); if (!chip->azx_dev) { snd_printk(KERN_ERR SFX "cannot malloc azx_dev\n"); - goto errout; + return -ENOMEM; } for (i = 0; i < chip->num_streams; i++) { @@ -2851,7 +3075,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, BDL_SIZE, &chip->azx_dev[i].bdl); if (err < 0) { snd_printk(KERN_ERR SFX "cannot allocate BDL\n"); - goto errout; + return -ENOMEM; } mark_pages_wc(chip, &chip->azx_dev[i].bdl, true); } @@ -2861,13 +3085,13 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, chip->num_streams * 8, &chip->posbuf); if (err < 0) { snd_printk(KERN_ERR SFX "cannot allocate posbuf\n"); - goto errout; + return -ENOMEM; } mark_pages_wc(chip, &chip->posbuf, true); /* allocate CORB/RIRB */ err = azx_alloc_cmd_io(chip); if (err < 0) - goto errout; + return err; /* initialize streams */ azx_init_stream(chip); @@ -2879,14 +3103,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, /* codec detection */ if (!chip->codec_mask) { snd_printk(KERN_ERR SFX "no codecs found!\n"); - err = -ENODEV; - goto errout; - } - - err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err <0) { - snd_printk(KERN_ERR SFX "Error creating device [card]!\n"); - goto errout; + return -ENODEV; } strcpy(card->driver, "HDA-Intel"); @@ -2896,12 +3113,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, "%s at 0x%lx irq %i", card->shortname, chip->addr, chip->irq); - *rchip = chip; return 0; - - errout: - azx_free(chip); - return err; } static void power_down_all_codecs(struct azx *chip) @@ -2946,6 +3158,27 @@ static int __devinit azx_probe(struct pci_dev *pci, goto out_free; card->private_data = chip; + if (!chip->disabled) { + err = azx_probe_continue(chip); + if (err < 0) + goto out_free; + } + + pci_set_drvdata(pci, card); + + dev++; + return 0; + +out_free: + snd_card_free(card); + return err; +} + +static int DELAYED_INIT_MARK azx_probe_continue(struct azx *chip) +{ + int dev = chip->dev_index; + int err; + #ifdef CONFIG_SND_HDA_INPUT_BEEP chip->beep_mode = beep_mode[dev]; #endif @@ -2979,25 +3212,26 @@ static int __devinit azx_probe(struct pci_dev *pci, if (err < 0) goto out_free; - err = snd_card_register(card); + err = snd_card_register(chip->card); if (err < 0) goto out_free; - pci_set_drvdata(pci, card); chip->running = 1; power_down_all_codecs(chip); azx_notifier_register(chip); - dev++; - return err; + return 0; + out_free: - snd_card_free(card); + chip->init_failed = 1; return err; } static void __devexit azx_remove(struct pci_dev *pci) { - snd_card_free(pci_get_drvdata(pci)); + struct snd_card *card = pci_get_drvdata(pci); + if (card) + snd_card_free(card); pci_set_drvdata(pci, NULL); } |
