diff options
author | Harvey Harrison <harvey.harrison@gmail.com> | 2008-06-19 00:45:13 +0400 |
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committer | Jaroslav Kysela <perex@perex.cz> | 2008-06-19 12:33:02 +0400 |
commit | 28bb171169247754bae47bad0609208333e7a34b (patch) | |
tree | 842752dbe1a2a63959d2d71fada368a05acd4750 /include/sound/asound.h | |
parent | 1301a964cef2759d46b4ce366eeeee1f869731f9 (diff) | |
download | linux-28bb171169247754bae47bad0609208333e7a34b.tar.xz |
alsa: add annotations to bitwise type snd_pcm_hw_param_t
Fully half of all alsa sparse warnings are from snd_pcm_hw_param_t degrading
to integer type, this goes a long way towards eliminating them.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'include/sound/asound.h')
-rw-r--r-- | include/sound/asound.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/sound/asound.h b/include/sound/asound.h index 3eaf155b850d..0309da2f11d3 100644 --- a/include/sound/asound.h +++ b/include/sound/asound.h @@ -302,6 +302,8 @@ typedef int __bitwise snd_pcm_hw_param_t; #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 */ @@ -317,6 +319,8 @@ typedef int __bitwise snd_pcm_hw_param_t; #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 */ @@ -336,11 +340,11 @@ struct snd_mask { 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 */ |