Hi Jassi,
On Wed, Jul 13, 2011 at 2:41 PM, Jassi Brar jassisinghbrar@gmail.com wrote:
On Wed, Jul 13, 2011 at 8:38 AM, Seungwhan Youn claude.youn@gmail.com wrote:
Hi,
On Wed, Jul 13, 2011 at 10:25 AM, Sangbeom Kim sbkim73@samsung.com wrote:
I2S in Exynos4 and S5PC110(S5PV210) has a internal dma. It can be used low power audio mode and 2nd channel transfer. This patch can support idma.
Signed-off-by: Sangbeom Kim sbkim73@samsung.com
In this case, MAX_IDMA_BUFFER is 160k and MAX_IDMA_PERIOD is 128k, buffer is not twice of period. If you set like this, many of general ALSA applications return error on initial buffers.
I don't think so. Did you see any such problem ? In my opnion, ALSA will always use 2 periods of approx. MAX_IDMA_BUFFER/2 bytes
I'm sorry for late reply. Yes, I was wrong. After your reply, I tested simple speaker-test with applying this patch, and it worked correctly. I'm sorry for this conflict.