diff options
author | Dylan Reid <dgreid@chromium.org> | 2014-03-01 00:41:29 +0100 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2014-03-01 11:23:24 +0100 |
commit | f0b1df88713a3537e056658d860f6631653ec5c6 (patch) | |
tree | f3f8904494c6a15c4ebbf58e9b205f44d2904998 | |
parent | ALSA: hda - Add position_check op (diff) | |
download | linux-f0b1df88713a3537e056658d860f6631653ec5c6.tar.xz linux-f0b1df88713a3537e056658d860f6631653ec5c6.zip |
ALSA: hda - Move azx_interrupt to hda_controller
This code will be reused by an hda_platform driver as it has no PCI
dependencies. This allows update_rirb to be static as all users are
now in hda_controller.c.
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r-- | sound/pci/hda/hda_controller.c | 69 | ||||
-rw-r--r-- | sound/pci/hda/hda_controller.h | 2 | ||||
-rw-r--r-- | sound/pci/hda/hda_intel.c | 65 |
3 files changed, 68 insertions, 68 deletions
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c index bde4935afbab..43b99b495347 100644 --- a/sound/pci/hda/hda_controller.c +++ b/sound/pci/hda/hda_controller.c @@ -22,6 +22,7 @@ #include <linux/clocksource.h> #include <linux/delay.h> +#include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> @@ -1162,7 +1163,7 @@ static int azx_corb_send_cmd(struct hda_bus *bus, u32 val) #define ICH6_RIRB_EX_UNSOL_EV (1<<4) /* retrieve RIRB entry - called from interrupt handler */ -void azx_update_rirb(struct azx *chip) +static void azx_update_rirb(struct azx *chip) { unsigned int rp, wp; unsigned int addr; @@ -1205,7 +1206,6 @@ void azx_update_rirb(struct azx *chip) } } } -EXPORT_SYMBOL_GPL(azx_update_rirb); /* receive a response */ static unsigned int azx_rirb_get_response(struct hda_bus *bus, @@ -1747,5 +1747,70 @@ void azx_stop_chip(struct azx *chip) chip->initialized = 0; } +/* + * interrupt handler + */ +irqreturn_t azx_interrupt(int irq, void *dev_id) +{ + struct azx *chip = dev_id; + struct azx_dev *azx_dev; + u32 status; + u8 sd_status; + int i; + +#ifdef CONFIG_PM_RUNTIME + if (chip->driver_caps & AZX_DCAPS_PM_RUNTIME) + if (chip->card->dev->power.runtime_status != RPM_ACTIVE) + return IRQ_NONE; +#endif + + spin_lock(&chip->reg_lock); + + if (chip->disabled) { + spin_unlock(&chip->reg_lock); + return IRQ_NONE; + } + + status = azx_readl(chip, INTSTS); + if (status == 0 || status == 0xffffffff) { + spin_unlock(&chip->reg_lock); + return IRQ_NONE; + } + + for (i = 0; i < chip->num_streams; i++) { + azx_dev = &chip->azx_dev[i]; + if (status & azx_dev->sd_int_sta_mask) { + sd_status = azx_sd_readb(chip, azx_dev, SD_STS); + azx_sd_writeb(chip, azx_dev, SD_STS, SD_INT_MASK); + if (!azx_dev->substream || !azx_dev->running || + !(sd_status & SD_INT_COMPLETE)) + continue; + /* check whether this IRQ is really acceptable */ + if (!chip->ops->position_check || + chip->ops->position_check(chip, azx_dev)) { + spin_unlock(&chip->reg_lock); + snd_pcm_period_elapsed(azx_dev->substream); + spin_lock(&chip->reg_lock); + } + } + } + + /* clear rirb int */ + status = azx_readb(chip, RIRBSTS); + if (status & RIRB_INT_MASK) { + if (status & RIRB_INT_RESPONSE) { + if (chip->driver_caps & AZX_DCAPS_RIRB_PRE_DELAY) + udelay(80); + azx_update_rirb(chip); + } + azx_writeb(chip, RIRBSTS, RIRB_INT_MASK); + } + + spin_unlock(&chip->reg_lock); + + return IRQ_HANDLED; +} +EXPORT_SYMBOL_GPL(azx_interrupt); + MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Common HDA driver funcitons"); diff --git a/sound/pci/hda/hda_controller.h b/sound/pci/hda/hda_controller.h index 67d9f28a669f..fac929948f19 100644 --- a/sound/pci/hda/hda_controller.h +++ b/sound/pci/hda/hda_controller.h @@ -50,7 +50,6 @@ void azx_free_stream_pages(struct azx *chip); /* * CORB / RIRB interface */ -void azx_update_rirb(struct azx *chip); int azx_send_cmd(struct hda_bus *bus, unsigned int val); unsigned int azx_get_response(struct hda_bus *bus, unsigned int addr); @@ -59,5 +58,6 @@ unsigned int azx_get_response(struct hda_bus *bus, void azx_init_chip(struct azx *chip, int full_reset); void azx_stop_chip(struct azx *chip); void azx_enter_link_reset(struct azx *chip); +irqreturn_t azx_interrupt(int irq, void *dev_id); #endif /* __SOUND_HDA_CONTROLLER_H */ diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 53e4b40a72af..96c22a3a2dc0 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -413,7 +413,6 @@ static void azx_init_pci(struct azx *chip) } } - static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev); /* called from IRQ */ @@ -434,70 +433,6 @@ static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev) } /* - * interrupt handler - */ -static irqreturn_t azx_interrupt(int irq, void *dev_id) -{ - struct azx *chip = dev_id; - struct azx_dev *azx_dev; - u32 status; - u8 sd_status; - int i; - -#ifdef CONFIG_PM_RUNTIME - if (chip->driver_caps & AZX_DCAPS_PM_RUNTIME) - if (chip->card->dev->power.runtime_status != RPM_ACTIVE) - return IRQ_NONE; -#endif - - spin_lock(&chip->reg_lock); - - if (chip->disabled) { - spin_unlock(&chip->reg_lock); - return IRQ_NONE; - } - - status = azx_readl(chip, INTSTS); - if (status == 0 || status == 0xffffffff) { - spin_unlock(&chip->reg_lock); - return IRQ_NONE; - } - - for (i = 0; i < chip->num_streams; i++) { - azx_dev = &chip->azx_dev[i]; - if (status & azx_dev->sd_int_sta_mask) { - sd_status = azx_sd_readb(chip, azx_dev, SD_STS); - azx_sd_writeb(chip, azx_dev, SD_STS, SD_INT_MASK); - if (!azx_dev->substream || !azx_dev->running || - !(sd_status & SD_INT_COMPLETE)) - continue; - /* check whether this IRQ is really acceptable */ - if (!chip->ops->position_check || - chip->ops->position_check(chip, azx_dev)) { - spin_unlock(&chip->reg_lock); - snd_pcm_period_elapsed(azx_dev->substream); - spin_lock(&chip->reg_lock); - } - } - } - - /* clear rirb int */ - status = azx_readb(chip, RIRBSTS); - if (status & RIRB_INT_MASK) { - if (status & RIRB_INT_RESPONSE) { - if (chip->driver_caps & AZX_DCAPS_RIRB_PRE_DELAY) - udelay(80); - azx_update_rirb(chip); - } - azx_writeb(chip, RIRBSTS, RIRB_INT_MASK); - } - - spin_unlock(&chip->reg_lock); - - return IRQ_HANDLED; -} - -/* * Probe the given codec address */ static int probe_codec(struct azx *chip, int addr) |