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| author | Takashi Iwai <tiwai@suse.de> | 2023-08-15 21:01:25 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-08-18 12:18:24 +0200 |
| commit | 2f432f4702134fac27677f13aba69ed830984f75 (patch) | |
| tree | 21f1bb0a8ded46be023f800d9c3cf327ed500acf /sound/sh | |
| parent | 2098765e952714d01a5cd615f5a80733762097c0 (diff) | |
| download | lwn-2f432f4702134fac27677f13aba69ed830984f75.tar.gz lwn-2f432f4702134fac27677f13aba69ed830984f75.zip | |
ALSA: sh: Convert to generic PCM copy ops
This patch converts the sh_dac_audio driver code to use the new
unified PCM copy callback. It's a straightforward conversion from
*_user() to *_iter() variants.
Link: https://lore.kernel.org/r/20230815190136.8987-15-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/sh')
| -rw-r--r-- | sound/sh/sh_dac_audio.c | 25 |
1 files changed, 3 insertions, 22 deletions
diff --git a/sound/sh/sh_dac_audio.c b/sound/sh/sh_dac_audio.c index 8cf571955c9d..95ba3abd4e47 100644 --- a/sound/sh/sh_dac_audio.c +++ b/sound/sh/sh_dac_audio.c @@ -158,12 +158,12 @@ static int snd_sh_dac_pcm_trigger(struct snd_pcm_substream *substream, int cmd) static int snd_sh_dac_pcm_copy(struct snd_pcm_substream *substream, int channel, unsigned long pos, - void __user *src, unsigned long count) + struct iov_iter *src, unsigned long count) { /* channel is not used (interleaved data) */ struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); - if (copy_from_user_toio(chip->data_buffer + pos, src, count)) + if (copy_from_iter_toio(chip->data_buffer + pos, src, count)) return -EFAULT; chip->buffer_end = chip->data_buffer + pos + count; @@ -175,24 +175,6 @@ static int snd_sh_dac_pcm_copy(struct snd_pcm_substream *substream, return 0; } -static int snd_sh_dac_pcm_copy_kernel(struct snd_pcm_substream *substream, - int channel, unsigned long pos, - void *src, unsigned long count) -{ - /* channel is not used (interleaved data) */ - struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); - - memcpy_toio(chip->data_buffer + pos, src, count); - chip->buffer_end = chip->data_buffer + pos + count; - - if (chip->empty) { - chip->empty = 0; - dac_audio_start_timer(chip); - } - - return 0; -} - static int snd_sh_dac_pcm_silence(struct snd_pcm_substream *substream, int channel, unsigned long pos, unsigned long count) @@ -227,8 +209,7 @@ static const struct snd_pcm_ops snd_sh_dac_pcm_ops = { .prepare = snd_sh_dac_pcm_prepare, .trigger = snd_sh_dac_pcm_trigger, .pointer = snd_sh_dac_pcm_pointer, - .copy_user = snd_sh_dac_pcm_copy, - .copy_kernel = snd_sh_dac_pcm_copy_kernel, + .copy = snd_sh_dac_pcm_copy, .fill_silence = snd_sh_dac_pcm_silence, .mmap = snd_pcm_lib_mmap_iomem, }; |