@@ -393,77 +393,6 @@ static void azx_init_pci(struct azx *chip)
}
}
-
-/*
- * 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, ok;
-
-#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 */
- ok = azx_position_ok(chip, azx_dev);
- if (ok == 1) {
- azx_dev->irq_pending = 0;
- spin_unlock(&chip->reg_lock);
- snd_pcm_period_elapsed(azx_dev->substream);
- spin_lock(&chip->reg_lock);
- } else if (ok == 0 && chip->bus && chip->bus->workq) {
- /* bogus IRQ, process it later */
- azx_dev->irq_pending = 1;
- queue_work(chip->bus->workq,
- &chip->irq_pending_work);
- }
- }
- }
-
- /* 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
*/
@@ -631,59 +560,6 @@ static int azx_codec_configure(struct azx *chip)
}
/*
- * The work for pending PCM period updates.
- */
-static void azx_irq_pending_work(struct work_struct *work)
-{
- struct azx *chip = container_of(work, struct azx, irq_pending_work);
- int i, pending, ok;
-
- if (!chip->irq_pending_warned) {
- dev_info(chip->card->dev,
- "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
- chip->card->number);
- chip->irq_pending_warned = 1;
- }
-
- for (;;) {
- pending = 0;
- spin_lock_irq(&chip->reg_lock);
- for (i = 0; i < chip->num_streams; i++) {
- struct azx_dev *azx_dev = &chip->azx_dev[i];
- if (!azx_dev->irq_pending ||
- !azx_dev->substream ||
- !azx_dev->running)
- continue;
- ok = azx_position_ok(chip, azx_dev);
- if (ok > 0) {
- azx_dev->irq_pending = 0;
- spin_unlock(&chip->reg_lock);
- snd_pcm_period_elapsed(azx_dev->substream);
- spin_lock(&chip->reg_lock);
- } else if (ok < 0) {
- pending = 0; /* too early */
- } else
- pending++;
- }
- spin_unlock_irq(&chip->reg_lock);
- if (!pending)
- return;
- msleep(1);
- }
-}
-
-/* clear irq_pending flags and assure no on-going workq */
-static void azx_clear_irq_pending(struct azx *chip)
-{
- int i;
-
- spin_lock_irq(&chip->reg_lock);
- for (i = 0; i < chip->num_streams; i++)
- chip->azx_dev[i].irq_pending = 0;
- spin_unlock_irq(&chip->reg_lock);
-}
-
-/*
* mixer creation - all stuff is implemented in hda module
*/
static int azx_mixer_create(struct azx *chip)
@@ -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>
@@ -1095,7 +1096,7 @@ int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
* data is processed. So, we need to process it afterwords in a
* workqueue.
*/
-int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
+static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
{
u32 wallclk;
unsigned int pos;
@@ -1235,7 +1236,7 @@ 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;
@@ -1826,5 +1827,131 @@ 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, ok;
+
+#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 */
+ ok = azx_position_ok(chip, azx_dev);
+ if (ok == 1) {
+ azx_dev->irq_pending = 0;
+ spin_unlock(&chip->reg_lock);
+ snd_pcm_period_elapsed(azx_dev->substream);
+ spin_lock(&chip->reg_lock);
+ } else if (ok == 0 && chip->bus && chip->bus->workq) {
+ /* bogus IRQ, process it later */
+ azx_dev->irq_pending = 1;
+ queue_work(chip->bus->workq,
+ &chip->irq_pending_work);
+ }
+ }
+ }
+
+ /* 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);
+
+/*
+ * The work for pending PCM period updates.
+ */
+void azx_irq_pending_work(struct work_struct *work)
+{
+ struct azx *chip = container_of(work, struct azx, irq_pending_work);
+ int i, pending, ok;
+
+ if (!chip->irq_pending_warned) {
+ dev_info(chip->card->dev,
+ "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
+ chip->card->number);
+ chip->irq_pending_warned = 1;
+ }
+
+ for (;;) {
+ pending = 0;
+ spin_lock_irq(&chip->reg_lock);
+ for (i = 0; i < chip->num_streams; i++) {
+ struct azx_dev *azx_dev = &chip->azx_dev[i];
+ if (!azx_dev->irq_pending ||
+ !azx_dev->substream ||
+ !azx_dev->running)
+ continue;
+ ok = azx_position_ok(chip, azx_dev);
+ if (ok > 0) {
+ azx_dev->irq_pending = 0;
+ spin_unlock(&chip->reg_lock);
+ snd_pcm_period_elapsed(azx_dev->substream);
+ spin_lock(&chip->reg_lock);
+ } else if (ok < 0) {
+ pending = 0; /* too early */
+ } else
+ pending++;
+ }
+ spin_unlock_irq(&chip->reg_lock);
+ if (!pending)
+ return;
+ msleep(1);
+ }
+}
+EXPORT_SYMBOL_GPL(azx_irq_pending_work);
+
+/* clear irq_pending flags and assure no on-going workq */
+void azx_clear_irq_pending(struct azx *chip)
+{
+ int i;
+
+ spin_lock_irq(&chip->reg_lock);
+ for (i = 0; i < chip->num_streams; i++)
+ chip->azx_dev[i].irq_pending = 0;
+ spin_unlock_irq(&chip->reg_lock);
+}
+EXPORT_SYMBOL_GPL(azx_clear_irq_pending);
+
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Common HDA driver funcitons");
@@ -23,7 +23,6 @@
/* PCM setup */
int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
struct hda_pcm *cpcm);
-int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
static inline struct azx_dev *get_azx_dev(struct snd_pcm_substream *substream)
{
return substream->runtime->private_data;
@@ -51,11 +50,13 @@ void azx_free_stream_pages(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);
-void azx_update_rirb(struct azx *chip);
/* Low level azx interface */
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);
+void azx_irq_pending_work(struct work_struct *work);
+void azx_clear_irq_pending(struct azx *chip);
#endif /* __SOUND_HDA_SHARED_H */
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_shared.c. Signed-off-by: Dylan Reid <dgreid@chromium.org> --- sound/pci/hda/hda_intel.c | 124 ------------------------------------------ sound/pci/hda/hda_shared.c | 131 ++++++++++++++++++++++++++++++++++++++++++++- sound/pci/hda/hda_shared.h | 5 +- 3 files changed, 132 insertions(+), 128 deletions(-)