[alsa-devel] [RFC 16/19] ALSA: hda - Move codec create to hda_shared
Dylan Reid
dgreid at chromium.org
Fri Feb 28 07:35:59 CET 2014
Codec creation and stream initialization can be shared between
hda_intel and hda platform drivers. Move it and the static functions
it depends on.
Signed-off-by: Dylan Reid <dgreid at chromium.org>
---
sound/pci/hda/hda_intel.c | 218 ----------------------------------------
sound/pci/hda/hda_shared.c | 241 ++++++++++++++++++++++++++++++++++++++++++---
sound/pci/hda/hda_shared.h | 26 ++---
3 files changed, 238 insertions(+), 247 deletions(-)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index a42c576..293a616 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -319,10 +319,6 @@ static const struct azx_reg_ops pci_reg_ops = {
static int azx_acquire_irq(struct azx *chip, int do_disconnect);
-#ifdef CONFIG_PM
-static void azx_power_notify(struct hda_bus *bus, bool power_up);
-#endif
-
/*
* initialize the PCI registers
*/
@@ -396,206 +392,6 @@ static void azx_init_pci(struct azx *chip)
}
}
-/*
- * 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;
-}
-
-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
- */
-
-static 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;
-}
-
-/* configure each codec instance */
-static 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;
-}
-
-/*
- * mixer creation - all stuff is implemented in hda module
- */
-static int azx_mixer_create(struct azx *chip)
-{
- return snd_hda_build_controls(chip->bus);
-}
-
-
-/*
- * initialize SD streams
- */
-static 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;
-}
-
static int azx_acquire_irq(struct azx *chip, int do_disconnect)
{
if (request_irq(chip->pci->irq, azx_interrupt,
@@ -614,20 +410,6 @@ static int azx_acquire_irq(struct azx *chip, int do_disconnect)
}
#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);
-}
-
static DEFINE_MUTEX(card_list_lock);
static LIST_HEAD(card_list);
diff --git a/sound/pci/hda/hda_shared.c b/sound/pci/hda/hda_shared.c
index 2821363..952d764 100644
--- a/sound/pci/hda/hda_shared.c
+++ b/sound/pci/hda/hda_shared.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>
#ifdef CONFIG_X86
/* for snoop control */
@@ -1034,8 +1035,8 @@ static void azx_pcm_free(struct snd_pcm *pcm)
#define MAX_PREALLOC_SIZE (32 * 1024 * 1024)
-int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
- struct hda_pcm *cpcm)
+static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
+ struct hda_pcm *cpcm)
{
struct azx *chip = bus->private_data;
struct snd_pcm *pcm;
@@ -1452,7 +1453,7 @@ 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;
@@ -1466,8 +1467,8 @@ int azx_send_cmd(struct hda_bus *bus, unsigned int val)
}
/* get a response */
-unsigned int azx_get_response(struct hda_bus *bus,
- unsigned int addr)
+static unsigned int azx_get_response(struct hda_bus *bus,
+ unsigned int addr)
{
struct azx *chip = bus->private_data;
if (chip->disabled)
@@ -1490,9 +1491,9 @@ 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;
@@ -1554,7 +1555,7 @@ int azx_load_dsp_prepare(struct hda_bus *bus, unsigned int format,
return err;
}
-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);
@@ -1566,8 +1567,8 @@ void azx_load_dsp_trigger(struct hda_bus *bus, bool start)
azx_dev->running = start;
}
-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);
@@ -1826,6 +1827,7 @@ void azx_stop_chip(struct azx *chip)
chip->initialized = 0;
}
+EXPORT_SYMBOL_GPL(azx_stop_chip);
/*
* interrupt handler
@@ -1953,5 +1955,222 @@ void azx_clear_irq_pending(struct azx *chip)
}
EXPORT_SYMBOL_GPL(azx_clear_irq_pending);
+/*
+ * 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");
diff --git a/sound/pci/hda/hda_shared.h b/sound/pci/hda/hda_shared.h
index 8eed8cb..16eabff 100644
--- a/sound/pci/hda/hda_shared.h
+++ b/sound/pci/hda/hda_shared.h
@@ -21,8 +21,6 @@
#include "hda_priv.h"
/* PCM setup */
-int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
- struct hda_pcm *cpcm);
static inline struct azx_dev *get_azx_dev(struct snd_pcm_substream *substream)
{
return substream->runtime->private_data;
@@ -31,26 +29,10 @@ static inline struct azx_dev *get_azx_dev(struct snd_pcm_substream *substream)
/* Stream control. */
void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev);
-#ifdef CONFIG_SND_HDA_DSP_LOADER
-int azx_load_dsp_prepare(struct hda_bus *bus, unsigned int format,
- unsigned int byte_size,
- struct snd_dma_buffer *bufp);
-void azx_load_dsp_trigger(struct hda_bus *bus, bool start);
-void azx_load_dsp_cleanup(struct hda_bus *bus,
- struct snd_dma_buffer *dmab);
-#endif
-
/* Allocation functions. */
int azx_alloc_stream_pages(struct azx *chip);
void azx_free_stream_pages(struct azx *chip);
-/*
- * CORB / RIRB interface
- */
-int azx_send_cmd(struct hda_bus *bus, unsigned int val);
-unsigned int azx_get_response(struct hda_bus *bus,
- unsigned int addr);
-
/* Low level azx interface */
void azx_init_chip(struct azx *chip, int full_reset);
void azx_stop_chip(struct azx *chip);
@@ -59,4 +41,12 @@ 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);
+/* Codec interface */
+int azx_codec_create(struct azx *chip, const char *model,
+ unsigned int max_slots,
+ int *power_save_to);
+int azx_codec_configure(struct azx *chip);
+int azx_mixer_create(struct azx *chip);
+int azx_init_stream(struct azx *chip);
+
#endif /* __SOUND_HDA_SHARED_H */
--
1.8.1.3.605.g02339dd
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