Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c57cccc0382fedd95373ffdb192f45d278210686
Commit: c57cccc0382fedd95373ffdb192f45d278210686
Parent: 7f0b89465bb94eb3273ea5af5e009332351a54c9
Author: Clemens Ladisch <[EMAIL PROTECTED]>
AuthorDate: Mon Jan 21 08:54:06 2008 +0100
Committer: Jaroslav Kysela <[EMAIL PROTECTED]>
CommitDate: Thu Jan 31 17:30:08 2008 +0100
[ALSA] oxygen: optimize snd_pcm_hardware structures
Add one more indirection to the lookup of the snd_pcm_hardware
structures so that we can save the space of the duplicate ones.
Signed-off-by: Clemens Ladisch <[EMAIL PROTECTED]>
Signed-off-by: Jaroslav Kysela <[EMAIL PROTECTED]>
---
sound/pci/oxygen/oxygen_pcm.c | 229 ++++++++++++++---------------------------
1 files changed, 79 insertions(+), 150 deletions(-)
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c
index 2002900..272ef08 100644
--- a/sound/pci/oxygen/oxygen_pcm.c
+++ b/sound/pci/oxygen/oxygen_pcm.c
@@ -24,155 +24,84 @@
#include <sound/pcm_params.h>
#include "oxygen.h"
-static struct snd_pcm_hardware oxygen_hardware[PCM_COUNT] = {
- [PCM_A] = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_SYNC_START,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_S32_LE,
- .rates = SNDRV_PCM_RATE_32000 |
- SNDRV_PCM_RATE_44100 |
- SNDRV_PCM_RATE_48000 |
- SNDRV_PCM_RATE_64000 |
- SNDRV_PCM_RATE_88200 |
- SNDRV_PCM_RATE_96000 |
- SNDRV_PCM_RATE_176400 |
- SNDRV_PCM_RATE_192000,
- .rate_min = 32000,
- .rate_max = 192000,
- .channels_min = 2,
- .channels_max = 2,
- .buffer_bytes_max = 256 * 1024,
- .period_bytes_min = 128,
- .period_bytes_max = 128 * 1024,
- .periods_min = 2,
- .periods_max = 2048,
- },
- [PCM_B] = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_SYNC_START,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_S32_LE,
- .rates = SNDRV_PCM_RATE_32000 |
- SNDRV_PCM_RATE_44100 |
- SNDRV_PCM_RATE_48000 |
- SNDRV_PCM_RATE_64000 |
- SNDRV_PCM_RATE_88200 |
- SNDRV_PCM_RATE_96000 |
- SNDRV_PCM_RATE_176400 |
- SNDRV_PCM_RATE_192000,
- .rate_min = 32000,
- .rate_max = 192000,
- .channels_min = 2,
- .channels_max = 2,
- .buffer_bytes_max = 256 * 1024,
- .period_bytes_min = 128,
- .period_bytes_max = 128 * 1024,
- .periods_min = 2,
- .periods_max = 2048,
- },
- [PCM_C] = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_SYNC_START,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_S32_LE,
- .rates = SNDRV_PCM_RATE_32000 |
- SNDRV_PCM_RATE_44100 |
- SNDRV_PCM_RATE_48000 |
- SNDRV_PCM_RATE_64000 |
- SNDRV_PCM_RATE_88200 |
- SNDRV_PCM_RATE_96000 |
- SNDRV_PCM_RATE_176400 |
- SNDRV_PCM_RATE_192000,
- .rate_min = 32000,
- .rate_max = 192000,
- .channels_min = 2,
- .channels_max = 2,
- .buffer_bytes_max = 256 * 1024,
- .period_bytes_min = 128,
- .period_bytes_max = 128 * 1024,
- .periods_min = 2,
- .periods_max = 2048,
- },
- [PCM_SPDIF] = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_SYNC_START,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_S32_LE,
- .rates = SNDRV_PCM_RATE_32000 |
- SNDRV_PCM_RATE_44100 |
- SNDRV_PCM_RATE_48000 |
- SNDRV_PCM_RATE_64000 |
- SNDRV_PCM_RATE_88200 |
- SNDRV_PCM_RATE_96000 |
- SNDRV_PCM_RATE_176400 |
- SNDRV_PCM_RATE_192000,
- .rate_min = 32000,
- .rate_max = 192000,
- .channels_min = 2,
- .channels_max = 2,
- .buffer_bytes_max = 256 * 1024,
- .period_bytes_min = 128,
- .period_bytes_max = 128 * 1024,
- .periods_min = 2,
- .periods_max = 2048,
- },
- [PCM_MULTICH] = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_SYNC_START,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_S32_LE,
- .rates = SNDRV_PCM_RATE_32000 |
- SNDRV_PCM_RATE_44100 |
- SNDRV_PCM_RATE_48000 |
- SNDRV_PCM_RATE_64000 |
- SNDRV_PCM_RATE_88200 |
- SNDRV_PCM_RATE_96000 |
- SNDRV_PCM_RATE_176400 |
- SNDRV_PCM_RATE_192000,
- .rate_min = 32000,
- .rate_max = 192000,
- .channels_min = 2,
- .channels_max = 8,
- .buffer_bytes_max = 2048 * 1024,
- .period_bytes_min = 128,
- .period_bytes_max = 256 * 1024,
- .periods_min = 2,
- .periods_max = 16384,
- },
- [PCM_AC97] = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_SYNC_START,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- .rates = SNDRV_PCM_RATE_48000,
- .rate_min = 48000,
- .rate_max = 48000,
- .channels_min = 2,
- .channels_max = 2,
- .buffer_bytes_max = 256 * 1024,
- .period_bytes_min = 128,
- .period_bytes_max = 128 * 1024,
- .periods_min = 2,
- .periods_max = 2048,
- },
+static const struct snd_pcm_hardware oxygen_stereo_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_SYNC_START,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S32_LE,
+ .rates = SNDRV_PCM_RATE_32000 |
+ SNDRV_PCM_RATE_44100 |
+ SNDRV_PCM_RATE_48000 |
+ SNDRV_PCM_RATE_64000 |
+ SNDRV_PCM_RATE_88200 |
+ SNDRV_PCM_RATE_96000 |
+ SNDRV_PCM_RATE_176400 |
+ SNDRV_PCM_RATE_192000,
+ .rate_min = 32000,
+ .rate_max = 192000,
+ .channels_min = 2,
+ .channels_max = 2,
+ .buffer_bytes_max = 256 * 1024,
+ .period_bytes_min = 128,
+ .period_bytes_max = 128 * 1024,
+ .periods_min = 2,
+ .periods_max = 2048,
+};
+static const struct snd_pcm_hardware oxygen_multichannel_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_SYNC_START,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S32_LE,
+ .rates = SNDRV_PCM_RATE_32000 |
+ SNDRV_PCM_RATE_44100 |
+ SNDRV_PCM_RATE_48000 |
+ SNDRV_PCM_RATE_64000 |
+ SNDRV_PCM_RATE_88200 |
+ SNDRV_PCM_RATE_96000 |
+ SNDRV_PCM_RATE_176400 |
+ SNDRV_PCM_RATE_192000,
+ .rate_min = 32000,
+ .rate_max = 192000,
+ .channels_min = 2,
+ .channels_max = 8,
+ .buffer_bytes_max = 2048 * 1024,
+ .period_bytes_min = 128,
+ .period_bytes_max = 256 * 1024,
+ .periods_min = 2,
+ .periods_max = 16384,
+};
+static const struct snd_pcm_hardware oxygen_ac97_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_SYNC_START,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .channels_min = 2,
+ .channels_max = 2,
+ .buffer_bytes_max = 256 * 1024,
+ .period_bytes_min = 128,
+ .period_bytes_max = 128 * 1024,
+ .periods_min = 2,
+ .periods_max = 2048,
+};
+
+static const struct snd_pcm_hardware *const oxygen_hardware[PCM_COUNT] = {
+ [PCM_A] = &oxygen_stereo_hardware,
+ [PCM_B] = &oxygen_stereo_hardware,
+ [PCM_C] = &oxygen_stereo_hardware,
+ [PCM_SPDIF] = &oxygen_stereo_hardware,
+ [PCM_MULTICH] = &oxygen_multichannel_hardware,
+ [PCM_AC97] = &oxygen_ac97_hardware,
};
static inline unsigned int
@@ -189,7 +118,7 @@ static int oxygen_open(struct snd_pcm_substream *substream,
int err;
runtime->private_data = (void *)(uintptr_t)channel;
- runtime->hw = oxygen_hardware[channel];
+ runtime->hw = *oxygen_hardware[channel];
if (chip->model->pcm_hardware_filter)
chip->model->pcm_hardware_filter(channel, &runtime->hw);
err = snd_pcm_hw_constraint_step(runtime, 0,
-
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