diff options
| author | Clemens Ladisch <clemens@ladisch.de> | 2008-01-04 09:22:20 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 17:29:44 +0100 |
| commit | 740eb8358f2bf337fd4ec62abb5b8cca7c652e5a (patch) | |
| tree | fa3d6d2deedf7f58ca2436b5d4a2129f7cdf5d59 | |
| parent | 93521d274b7fb4e6da5772768683e4984783d9e7 (diff) | |
[ALSA] oxygen: use uintptr_t in pointer casts
When we store the DMA channel number in the substream's private_data
pointer, use uintptr_t as an intermediate step when casting from/to
unsigned int to prevent the compiler from whining when the pointer size
is different.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
| -rw-r--r-- | sound/pci/oxygen/oxygen_pcm.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c index 941399bcab8a..ff46ba5f2774 100644 --- a/sound/pci/oxygen/oxygen_pcm.c +++ b/sound/pci/oxygen/oxygen_pcm.c @@ -168,6 +168,12 @@ static struct snd_pcm_hardware oxygen_hardware[PCM_COUNT] = { }, }; +static inline unsigned int +oxygen_substream_channel(struct snd_pcm_substream *substream) +{ + return (unsigned int)(uintptr_t)substream->runtime->private_data; +} + static int oxygen_open(struct snd_pcm_substream *substream, unsigned int channel) { @@ -175,7 +181,7 @@ static int oxygen_open(struct snd_pcm_substream *substream, struct snd_pcm_runtime *runtime = substream->runtime; int err; - runtime->private_data = (void *)channel; + runtime->private_data = (void *)(uintptr_t)channel; runtime->hw = oxygen_hardware[channel]; err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); @@ -248,7 +254,7 @@ static int oxygen_ac97_open(struct snd_pcm_substream *substream) static int oxygen_close(struct snd_pcm_substream *substream) { struct oxygen *chip = snd_pcm_substream_chip(substream); - unsigned int channel = (unsigned int)substream->runtime->private_data; + unsigned int channel = oxygen_substream_channel(substream); mutex_lock(&chip->mutex); chip->pcm_active &= ~(1 << channel); @@ -337,7 +343,7 @@ static int oxygen_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { struct oxygen *chip = snd_pcm_substream_chip(substream); - unsigned int channel = (unsigned int)substream->runtime->private_data; + unsigned int channel = oxygen_substream_channel(substream); int err; err = snd_pcm_lib_malloc_pages(substream, @@ -516,7 +522,7 @@ static int oxygen_ac97_hw_params(struct snd_pcm_substream *substream, static int oxygen_hw_free(struct snd_pcm_substream *substream) { struct oxygen *chip = snd_pcm_substream_chip(substream); - unsigned int channel = (unsigned int)substream->runtime->private_data; + unsigned int channel = oxygen_substream_channel(substream); spin_lock_irq(&chip->reg_lock); chip->interrupt_mask &= ~(1 << channel); @@ -540,7 +546,7 @@ static int oxygen_spdif_hw_free(struct snd_pcm_substream *substream) static int oxygen_prepare(struct snd_pcm_substream *substream) { struct oxygen *chip = snd_pcm_substream_chip(substream); - unsigned int channel = (unsigned int)substream->runtime->private_data; + unsigned int channel = oxygen_substream_channel(substream); unsigned int channel_mask = 1 << channel; spin_lock_irq(&chip->reg_lock); @@ -575,7 +581,7 @@ static int oxygen_trigger(struct snd_pcm_substream *substream, int cmd) snd_pcm_group_for_each_entry(s, substream) { if (snd_pcm_substream_chip(s) == chip) { - mask |= 1 << (unsigned int)s->runtime->private_data; + mask |= 1 << oxygen_substream_channel(s); snd_pcm_trigger_done(s, substream); } } @@ -594,7 +600,7 @@ static snd_pcm_uframes_t oxygen_pointer(struct snd_pcm_substream *substream) { struct oxygen *chip = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; - unsigned int channel = (unsigned int)runtime->private_data; + unsigned int channel = oxygen_substream_channel(substream); u32 curr_addr; /* no spinlock, this read should be atomic */ |