Replace the copy and the silence ops with the new PCM ops.
Fixed also the user-space buffer copy with the proper
copy_from_user*() variant.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/sh/sh_dac_audio.c | 54 +++++++++++++++++++++++++++----------------------
1 file changed, 30 insertions(+), 24 deletions(-)
diff --git a/sound/sh/sh_dac_audio.c b/sound/sh/sh_dac_audio.c
index 461b310c7872..c1e00ed715ee 100644
--- a/sound/sh/sh_dac_audio.c
+++ b/sound/sh/sh_dac_audio.c
@@ -184,23 +184,36 @@ static int snd_sh_dac_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
return 0;
}
-static int snd_sh_dac_pcm_copy(struct snd_pcm_substream *substream, int channel,
- snd_pcm_uframes_t pos, void __user *src, snd_pcm_uframes_t count)
+static int snd_sh_dac_pcm_copy(struct snd_pcm_substream *substream,
+ int channel, unsigned long pos,
+ void __user *src, unsigned long count)
{
/* channel is not used (interleaved data) */
struct snd_sh_dac *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- ssize_t b_count = frames_to_bytes(runtime , count);
- ssize_t b_pos = frames_to_bytes(runtime , pos);
- if (count < 0)
- return -EINVAL;
+ if (copy_from_user_toio(chip->data_buffer + pos, src, count))
+ return -EFAULT;
+ chip->buffer_end = chip->data_buffer + pos + count;
- if (!count)
- return 0;
+ if (chip->empty) {
+ chip->empty = 0;
+ dac_audio_start_timer(chip);
+ }
+
+ return 0;
+}
- memcpy_toio(chip->data_buffer + b_pos, src, b_count);
- chip->buffer_end = chip->data_buffer + b_pos + b_count;
+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);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ memcpy_toio(chip->data_buffer + pos, src, count);
+ chip->buffer_end = chip->data_buffer + pos + count;
if (chip->empty) {
chip->empty = 0;
@@ -211,23 +224,15 @@ static int snd_sh_dac_pcm_copy(struct snd_pcm_substream *substream, int channel,
}
static int snd_sh_dac_pcm_silence(struct snd_pcm_substream *substream,
- int channel, snd_pcm_uframes_t pos,
- snd_pcm_uframes_t count)
+ int channel, unsigned long pos,
+ unsigned long count)
{
/* channel is not used (interleaved data) */
struct snd_sh_dac *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
- ssize_t b_count = frames_to_bytes(runtime , count);
- ssize_t b_pos = frames_to_bytes(runtime , pos);
-
- if (count < 0)
- return -EINVAL;
-
- if (!count)
- return 0;
- memset_io(chip->data_buffer + b_pos, 0, b_count);
- chip->buffer_end = chip->data_buffer + b_pos + b_count;
+ memset_io(chip->data_buffer + pos, 0, count);
+ chip->buffer_end = chip->data_buffer + pos + count;
if (chip->empty) {
chip->empty = 0;
@@ -256,8 +261,9 @@ static 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 = snd_sh_dac_pcm_copy,
- .silence = snd_sh_dac_pcm_silence,
+ .copy_user = snd_sh_dac_pcm_copy,
+ .copy_kernel = snd_sh_dac_pcm_copy_kernel,
+ .fill_silence = snd_sh_dac_pcm_silence,
.mmap = snd_pcm_lib_mmap_iomem,
};
--
2.13.0
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