Replace the copy ops with the new copy_user and copy_kernel ops.
It's used only for a capture stream (for some hardware workaround),
thus we need no silence operation.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/pci/es1938.c | 33 +++++++++++++++++++++++++--------
1 file changed, 25 insertions(+), 8 deletions(-)
diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c
index e8d943071a8c..a544cd52f73a 100644
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -839,15 +839,12 @@ static snd_pcm_uframes_t snd_es1938_playback_pointer(struct snd_pcm_substream *s
}
static int snd_es1938_capture_copy(struct snd_pcm_substream *substream,
- int channel,
- snd_pcm_uframes_t pos,
- void __user *dst,
- snd_pcm_uframes_t count)
+ int channel, unsigned long pos,
+ void __user *dst, unsigned long count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct es1938 *chip = snd_pcm_substream_chip(substream);
- pos <<= chip->dma1_shift;
- count <<= chip->dma1_shift;
+
if (snd_BUG_ON(pos + count > chip->dma1_size))
return -EINVAL;
if (pos + count < chip->dma1_size) {
@@ -856,12 +853,31 @@ static int snd_es1938_capture_copy(struct snd_pcm_substream *substream,
} else {
if (copy_to_user(dst, runtime->dma_area + pos + 1, count - 1))
return -EFAULT;
- if (put_user(runtime->dma_area[0], ((unsigned char __user *)dst) + count - 1))
+ if (put_user(runtime->dma_area[0],
+ ((unsigned char __user *)dst) + count - 1))
return -EFAULT;
}
return 0;
}
+static int snd_es1938_capture_copy_kernel(struct snd_pcm_substream *substream,
+ int channel, unsigned long pos,
+ void *dst, unsigned long count)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct es1938 *chip = snd_pcm_substream_chip(substream);
+
+ if (snd_BUG_ON(pos + count > chip->dma1_size))
+ return -EINVAL;
+ if (pos + count < chip->dma1_size) {
+ memcpy(dst, runtime->dma_area + pos + 1, count);
+ } else {
+ memcpy(dst, runtime->dma_area + pos + 1, count - 1);
+ runtime->dma_area[0] = *((unsigned char *)dst + count - 1);
+ }
+ return 0;
+}
+
/*
* buffer management
*/
@@ -1012,7 +1028,8 @@ static const struct snd_pcm_ops snd_es1938_capture_ops = {
.prepare = snd_es1938_capture_prepare,
.trigger = snd_es1938_capture_trigger,
.pointer = snd_es1938_capture_pointer,
- .copy = snd_es1938_capture_copy,
+ .copy_user = snd_es1938_capture_copy,
+ .copy_kernel = snd_es1938_capture_copy_kernel,
};
static int snd_es1938_new_pcm(struct es1938 *chip, int device)
--
2.13.0
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
