#define SNDRV_PCM_HW_PARAM_SUBFORMAT ((__force snd_pcm_hw_param_t) 2) /* Subformat */
#define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
+#define SNDRV_PCM_HW_PARAM_MASK_INDEX(var) \
+ ((__force int)(var) - (__force int)SNDRV_PCM_HW_PARAM_FIRST_MASK)
#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS ((__force snd_pcm_hw_param_t) 8) /* Bits per sample */
#define SNDRV_PCM_HW_PARAM_FRAME_BITS ((__force snd_pcm_hw_param_t) 9) /* Bits per frame */
#define SNDRV_PCM_HW_PARAM_TICK_TIME ((__force snd_pcm_hw_param_t) 19) /* Approx tick duration in us */
#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
+#define SNDRV_PCM_HW_PARAM_INTERVAL_INDEX(var) \
+ ((__force int)(var) - (__force int)SNDRV_PCM_HW_PARAM_FIRST_INTERVAL)
#define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0) /* avoid rate resampling */
struct snd_pcm_hw_params {
unsigned int flags;
- struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
- SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
+ struct snd_mask masks[
+ SNDRV_PCM_HW_PARAM_MASK_INDEX(SNDRV_PCM_HW_PARAM_LAST_MASK) + 1];
struct snd_mask mres[5]; /* reserved masks */
- struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
- SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
+ struct snd_interval intervals[
+ SNDRV_PCM_HW_PARAM_INTERVAL_INDEX(SNDRV_PCM_HW_PARAM_LAST_INTERVAL) + 1];
struct snd_interval ires[9]; /* reserved intervals */
unsigned int rmask; /* W: requested masks */
unsigned int cmask; /* R: changed masks */