diff options
Diffstat (limited to 'kernel/sound/drivers/dummy.c')
| -rw-r--r-- | kernel/sound/drivers/dummy.c | 53 |
1 files changed, 27 insertions, 26 deletions
diff --git a/kernel/sound/drivers/dummy.c b/kernel/sound/drivers/dummy.c index d11baaf0f..a9f7a7570 100644 --- a/kernel/sound/drivers/dummy.c +++ b/kernel/sound/drivers/dummy.c @@ -109,6 +109,9 @@ struct dummy_timer_ops { snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *); }; +#define get_dummy_ops(substream) \ + (*(const struct dummy_timer_ops **)(substream)->runtime->private_data) + struct dummy_model { const char *name; int (*playback_constraints)(struct snd_pcm_runtime *runtime); @@ -137,7 +140,6 @@ struct snd_dummy { int iobox; struct snd_kcontrol *cd_volume_ctl; struct snd_kcontrol *cd_switch_ctl; - const struct dummy_timer_ops *timer_ops; }; /* @@ -156,13 +158,13 @@ static int emu10k1_playback_constraints(struct snd_pcm_runtime *runtime) return 0; } -struct dummy_model model_emu10k1 = { +static struct dummy_model model_emu10k1 = { .name = "emu10k1", .playback_constraints = emu10k1_playback_constraints, .buffer_bytes_max = 128 * 1024, }; -struct dummy_model model_rme9652 = { +static struct dummy_model model_rme9652 = { .name = "rme9652", .buffer_bytes_max = 26 * 64 * 1024, .formats = SNDRV_PCM_FMTBIT_S32_LE, @@ -172,7 +174,7 @@ struct dummy_model model_rme9652 = { .periods_max = 2, }; -struct dummy_model model_ice1712 = { +static struct dummy_model model_ice1712 = { .name = "ice1712", .buffer_bytes_max = 256 * 1024, .formats = SNDRV_PCM_FMTBIT_S32_LE, @@ -182,7 +184,7 @@ struct dummy_model model_ice1712 = { .periods_max = 1024, }; -struct dummy_model model_uda1341 = { +static struct dummy_model model_uda1341 = { .name = "uda1341", .buffer_bytes_max = 16380, .formats = SNDRV_PCM_FMTBIT_S16_LE, @@ -192,7 +194,7 @@ struct dummy_model model_uda1341 = { .periods_max = 255, }; -struct dummy_model model_ac97 = { +static struct dummy_model model_ac97 = { .name = "ac97", .formats = SNDRV_PCM_FMTBIT_S16_LE, .channels_min = 2, @@ -202,7 +204,7 @@ struct dummy_model model_ac97 = { .rate_max = 48000, }; -struct dummy_model model_ca0106 = { +static struct dummy_model model_ca0106 = { .name = "ca0106", .formats = SNDRV_PCM_FMTBIT_S16_LE, .buffer_bytes_max = ((65536-64)*8), @@ -216,7 +218,7 @@ struct dummy_model model_ca0106 = { .rate_max = 192000, }; -struct dummy_model *dummy_models[] = { +static struct dummy_model *dummy_models[] = { &model_emu10k1, &model_rme9652, &model_ice1712, @@ -231,6 +233,8 @@ struct dummy_model *dummy_models[] = { */ struct dummy_systimer_pcm { + /* ops must be the first item */ + const struct dummy_timer_ops *timer_ops; spinlock_t lock; struct timer_list timer; unsigned long base_time; @@ -366,6 +370,8 @@ static struct dummy_timer_ops dummy_systimer_ops = { */ struct dummy_hrtimer_pcm { + /* ops must be the first item */ + const struct dummy_timer_ops *timer_ops; ktime_t base_time; ktime_t period_time; atomic_t running; @@ -492,31 +498,25 @@ static struct dummy_timer_ops dummy_hrtimer_ops = { static int dummy_pcm_trigger(struct snd_pcm_substream *substream, int cmd) { - struct snd_dummy *dummy = snd_pcm_substream_chip(substream); - switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: - return dummy->timer_ops->start(substream); + return get_dummy_ops(substream)->start(substream); case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: - return dummy->timer_ops->stop(substream); + return get_dummy_ops(substream)->stop(substream); } return -EINVAL; } static int dummy_pcm_prepare(struct snd_pcm_substream *substream) { - struct snd_dummy *dummy = snd_pcm_substream_chip(substream); - - return dummy->timer_ops->prepare(substream); + return get_dummy_ops(substream)->prepare(substream); } static snd_pcm_uframes_t dummy_pcm_pointer(struct snd_pcm_substream *substream) { - struct snd_dummy *dummy = snd_pcm_substream_chip(substream); - - return dummy->timer_ops->pointer(substream); + return get_dummy_ops(substream)->pointer(substream); } static struct snd_pcm_hardware dummy_pcm_hardware = { @@ -562,17 +562,19 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream) struct snd_dummy *dummy = snd_pcm_substream_chip(substream); struct dummy_model *model = dummy->model; struct snd_pcm_runtime *runtime = substream->runtime; + const struct dummy_timer_ops *ops; int err; - dummy->timer_ops = &dummy_systimer_ops; + ops = &dummy_systimer_ops; #ifdef CONFIG_HIGH_RES_TIMERS if (hrtimer) - dummy->timer_ops = &dummy_hrtimer_ops; + ops = &dummy_hrtimer_ops; #endif - err = dummy->timer_ops->create(substream); + err = ops->create(substream); if (err < 0) return err; + get_dummy_ops(substream) = ops; runtime->hw = dummy->pcm_hw; if (substream->pcm->device & 1) { @@ -594,7 +596,7 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream) err = model->capture_constraints(substream->runtime); } if (err < 0) { - dummy->timer_ops->free(substream); + get_dummy_ops(substream)->free(substream); return err; } return 0; @@ -602,8 +604,7 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream) static int dummy_pcm_close(struct snd_pcm_substream *substream) { - struct snd_dummy *dummy = snd_pcm_substream_chip(substream); - dummy->timer_ops->free(substream); + get_dummy_ops(substream)->free(substream); return 0; } @@ -914,7 +915,7 @@ static int snd_card_dummy_new_mixer(struct snd_dummy *dummy) return 0; } -#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_PROC_FS) +#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_PROC_FS) /* * proc interface */ @@ -1042,7 +1043,7 @@ static void dummy_proc_init(struct snd_dummy *chip) } #else #define dummy_proc_init(x) -#endif /* CONFIG_SND_DEBUG && CONFIG_PROC_FS */ +#endif /* CONFIG_SND_DEBUG && CONFIG_SND_PROC_FS */ static int snd_dummy_probe(struct platform_device *devptr) { |