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Diffstat (limited to 'sound/core/pcm_native.c')
-rw-r--r--sound/core/pcm_native.c47
1 files changed, 26 insertions, 21 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index cbdf061667fa..aef860256278 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -228,6 +228,9 @@ int snd_pcm_info_user(struct snd_pcm_substream *substream,
return err;
}
+/* macro for simplified cast */
+#define PARAM_MASK_BIT(b) (1U << (__force int)(b))
+
static bool hw_support_mmap(struct snd_pcm_substream *substream)
{
if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_MMAP))
@@ -257,7 +260,7 @@ static int constrain_mask_params(struct snd_pcm_substream *substream,
return -EINVAL;
/* This parameter is not requested to change by a caller. */
- if (!(params->rmask & (1 << k)))
+ if (!(params->rmask & PARAM_MASK_BIT(k)))
continue;
if (trace_hw_mask_param_enabled())
@@ -271,7 +274,7 @@ static int constrain_mask_params(struct snd_pcm_substream *substream,
/* Set corresponding flag so that the caller gets it. */
trace_hw_mask_param(substream, k, 0, &old_mask, m);
- params->cmask |= 1 << k;
+ params->cmask |= PARAM_MASK_BIT(k);
}
return 0;
@@ -293,7 +296,7 @@ static int constrain_interval_params(struct snd_pcm_substream *substream,
return -EINVAL;
/* This parameter is not requested to change by a caller. */
- if (!(params->rmask & (1 << k)))
+ if (!(params->rmask & PARAM_MASK_BIT(k)))
continue;
if (trace_hw_interval_param_enabled())
@@ -307,7 +310,7 @@ static int constrain_interval_params(struct snd_pcm_substream *substream,
/* Set corresponding flag so that the caller gets it. */
trace_hw_interval_param(substream, k, 0, &old_interval, i);
- params->cmask |= 1 << k;
+ params->cmask |= PARAM_MASK_BIT(k);
}
return 0;
@@ -349,7 +352,7 @@ static int constrain_params_by_rules(struct snd_pcm_substream *substream,
* have 0 so that the parameters are never changed anymore.
*/
for (k = 0; k <= SNDRV_PCM_HW_PARAM_LAST_INTERVAL; k++)
- vstamps[k] = (params->rmask & (1 << k)) ? 1 : 0;
+ vstamps[k] = (params->rmask & PARAM_MASK_BIT(k)) ? 1 : 0;
/* Due to the above design, actual sequence number starts at 2. */
stamp = 2;
@@ -417,7 +420,7 @@ retry:
hw_param_interval(params, r->var));
}
- params->cmask |= (1 << r->var);
+ params->cmask |= PARAM_MASK_BIT(r->var);
vstamps[r->var] = stamp;
again = true;
}
@@ -486,9 +489,9 @@ int snd_pcm_hw_refine(struct snd_pcm_substream *substream,
params->info = 0;
params->fifo_size = 0;
- if (params->rmask & (1 << SNDRV_PCM_HW_PARAM_SAMPLE_BITS))
+ if (params->rmask & PARAM_MASK_BIT(SNDRV_PCM_HW_PARAM_SAMPLE_BITS))
params->msbits = 0;
- if (params->rmask & (1 << SNDRV_PCM_HW_PARAM_RATE)) {
+ if (params->rmask & PARAM_MASK_BIT(SNDRV_PCM_HW_PARAM_RATE)) {
params->rate_num = 0;
params->rate_den = 0;
}
@@ -2293,21 +2296,21 @@ static int snd_pcm_hw_rule_mulkdiv(struct snd_pcm_hw_params *params,
static int snd_pcm_hw_rule_format(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
- unsigned int k;
+ snd_pcm_format_t k;
const struct snd_interval *i =
hw_param_interval_c(params, rule->deps[0]);
struct snd_mask m;
struct snd_mask *mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
snd_mask_any(&m);
- for (k = 0; k <= SNDRV_PCM_FORMAT_LAST; ++k) {
+ pcm_for_each_format(k) {
int bits;
- if (! snd_mask_test(mask, k))
+ if (!snd_mask_test_format(mask, k))
continue;
bits = snd_pcm_format_physical_width(k);
if (bits <= 0)
continue; /* ignore invalid formats */
if ((unsigned)bits < i->min || (unsigned)bits > i->max)
- snd_mask_reset(&m, k);
+ snd_mask_reset(&m, (__force unsigned)k);
}
return snd_mask_refine(mask, &m);
}
@@ -2316,14 +2319,15 @@ static int snd_pcm_hw_rule_sample_bits(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
struct snd_interval t;
- unsigned int k;
+ snd_pcm_format_t k;
+
t.min = UINT_MAX;
t.max = 0;
t.openmin = 0;
t.openmax = 0;
- for (k = 0; k <= SNDRV_PCM_FORMAT_LAST; ++k) {
+ pcm_for_each_format(k) {
int bits;
- if (! snd_mask_test(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), k))
+ if (!snd_mask_test_format(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), k))
continue;
bits = snd_pcm_format_physical_width(k);
if (bits <= 0)
@@ -2505,16 +2509,16 @@ static int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream)
unsigned int mask = 0;
if (hw->info & SNDRV_PCM_INFO_INTERLEAVED)
- mask |= 1 << SNDRV_PCM_ACCESS_RW_INTERLEAVED;
+ mask |= PARAM_MASK_BIT(SNDRV_PCM_ACCESS_RW_INTERLEAVED);
if (hw->info & SNDRV_PCM_INFO_NONINTERLEAVED)
- mask |= 1 << SNDRV_PCM_ACCESS_RW_NONINTERLEAVED;
+ mask |= PARAM_MASK_BIT(SNDRV_PCM_ACCESS_RW_NONINTERLEAVED);
if (hw_support_mmap(substream)) {
if (hw->info & SNDRV_PCM_INFO_INTERLEAVED)
- mask |= 1 << SNDRV_PCM_ACCESS_MMAP_INTERLEAVED;
+ mask |= PARAM_MASK_BIT(SNDRV_PCM_ACCESS_MMAP_INTERLEAVED);
if (hw->info & SNDRV_PCM_INFO_NONINTERLEAVED)
- mask |= 1 << SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED;
+ mask |= PARAM_MASK_BIT(SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED);
if (hw->info & SNDRV_PCM_INFO_COMPLEX)
- mask |= 1 << SNDRV_PCM_ACCESS_MMAP_COMPLEX;
+ mask |= PARAM_MASK_BIT(SNDRV_PCM_ACCESS_MMAP_COMPLEX);
}
err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_ACCESS, mask);
if (err < 0)
@@ -2524,7 +2528,8 @@ static int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream)
if (err < 0)
return err;
- err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_SUBFORMAT, 1 << SNDRV_PCM_SUBFORMAT_STD);
+ err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_SUBFORMAT,
+ PARAM_MASK_BIT(SNDRV_PCM_SUBFORMAT_STD));
if (err < 0)
return err;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.