diff options
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 272 |
1 files changed, 227 insertions, 45 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 06a4ad3e5cd..e7a60402b23 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -54,6 +54,7 @@ #include <sound/core.h> #include <sound/initval.h> #include <linux/vgaarb.h> +#include <linux/vga_switcheroo.h> #include "hda_codec.h" @@ -176,6 +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 */ @@ -473,6 +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]; @@ -539,7 +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", @@ -958,6 +985,8 @@ 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); @@ -970,6 +999,8 @@ 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 @@ -1235,6 +1266,9 @@ static irqreturn_t azx_interrupt(int irq, void *dev_id) spin_lock(&chip->reg_lock); + if (chip->disabled) + return IRQ_NONE; + status = azx_readl(chip, INTSTS); if (status == 0) { spin_unlock(&chip->reg_lock); @@ -1520,12 +1554,12 @@ 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; @@ -2443,6 +2477,105 @@ 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 */ @@ -2452,6 +2585,12 @@ 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++) @@ -2481,7 +2620,8 @@ 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); @@ -2708,12 +2848,11 @@ 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; @@ -2739,6 +2878,7 @@ 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]); @@ -2766,6 +2906,53 @@ 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) { @@ -2777,28 +2964,23 @@ 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); @@ -2877,7 +3059,7 @@ 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++) { @@ -2887,7 +3069,7 @@ 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); } @@ -2897,13 +3079,13 @@ 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); @@ -2915,14 +3097,7 @@ 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"); @@ -2932,12 +3107,7 @@ 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) @@ -2968,12 +3138,6 @@ static int __devinit azx_probe(struct pci_dev *pci, return -ENOENT; } - if (check_hdmi_disabled(pci)) { - snd_printk(KERN_INFO SFX - "Inactive VGA controller; disabled audio, too\n"); - goto out; - } - err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); if (err < 0) { snd_printk(KERN_ERR SFX "Error creating card!\n"); @@ -2988,6 +3152,27 @@ 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 @@ -3021,21 +3206,18 @@ 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); - out: - dev++; return 0; out_free: - snd_card_free(card); + chip->init_failed = 1; return err; } |