diff options
| author | Steven Toth <stoth@kernellabs.com> | 2010-07-31 15:13:45 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-10-21 07:54:54 -0200 |
| commit | 12d3203e39db306f56611b3f47ba425ca6a409f9 (patch) | |
| tree | 3e7eba22186a7015be6529abd2c3ee3659b0b77c /drivers/media/video/saa7164/saa7164-buffer.c | |
| parent | 46eeb8dd30d3651e6ea55c2e60594206cd591d79 (diff) | |
[media] saa7164: buffer crc checks and ensure we use the memcpy func
Buffer crc checks and ensure we use the correct PCIe IO memcpy func
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/saa7164/saa7164-buffer.c')
| -rw-r--r-- | drivers/media/video/saa7164/saa7164-buffer.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/media/video/saa7164/saa7164-buffer.c b/drivers/media/video/saa7164/saa7164-buffer.c index 0760891d5fa..b75157d411d 100644 --- a/drivers/media/video/saa7164/saa7164-buffer.c +++ b/drivers/media/video/saa7164/saa7164-buffer.c @@ -113,6 +113,7 @@ struct saa7164_buffer *saa7164_buffer_alloc(struct saa7164_port *port, buf->flags = SAA7164_BUFFER_FREE; buf->pos = 0; buf->actual_size = params->pitch * params->numberoflines; + buf->crc = 0; /* TODO: arg len is being ignored */ buf->pci_size = SAA7164_PT_ENTRIES * 0x1000; buf->pt_size = (SAA7164_PT_ENTRIES * sizeof(u64)) + 0x1000; @@ -129,8 +130,9 @@ struct saa7164_buffer *saa7164_buffer_alloc(struct saa7164_port *port, goto fail2; /* init the buffers to a known pattern, easier during debugging */ - memset(buf->cpu, 0xff, buf->pci_size); - memset(buf->pt_cpu, 0xff, buf->pt_size); + memset_io(buf->cpu, 0xff, buf->pci_size); + buf->crc = crc32(0, buf->cpu, buf->actual_size); + memset_io(buf->pt_cpu, 0xff, buf->pt_size); dprintk(DBGLVL_BUF, "%s() allocated buffer @ 0x%p\n", __func__, buf); @@ -296,6 +298,7 @@ struct saa7164_user_buffer *saa7164_buffer_alloc_user(struct saa7164_dev *dev, u buf->actual_size = len; buf->pos = 0; + buf->crc = 0; dprintk(DBGLVL_BUF, "%s() allocated user buffer @ 0x%p\n", __func__, buf); |