[9610] fimc-is2: add 'get_dma' for ver 6.10.0

Change-Id: I787d86aecf041f75aa765ece6031b15eb8cb78b7
Signed-off-by: Eunyoung Lee <ey470.lee@samsung.com>

diff --git a/drivers/media/platform/exynos/fimc-is2/ischain/fimc-is-v6_10_0/fimc-is-hw-chain.c b/drivers/media/platform/exynos/fimc-is2/ischain/fimc-is-v6_10_0/fimc-is-hw-chain.c
index e9719f6750c94c0806a5584411fa5c93c94e6567..040634a8ee081322ef8314dbe5d34337b9fe17f2 100644 (file)
--- a/drivers/media/platform/exynos/fimc-is2/ischain/fimc-is-v6_10_0/fimc-is-hw-chain.c
+++ b/drivers/media/platform/exynos/fimc-is2/ischain/fimc-is-v6_10_0/fimc-is-hw-chain.c
@@ -1268,3 +1268,46 @@ exit:
        return ret;
 }
 #endif
+
+unsigned int get_dma(struct fimc_is_device_sensor *device, u32 *dma_ch)
+{
+       struct fimc_is_core *core;
+       u32 open_sensor_count = 0;
+       u32 position;
+       int i;
+       int ret = 0;
+
+       *dma_ch = 0;
+       core = device->private_data;
+       for (i = 0; i < FIMC_IS_SENSOR_COUNT; i++) {
+               if (test_bit(FIMC_IS_SENSOR_OPEN, &(core->sensor[i].state))) {
+                       open_sensor_count++;
+                       position = device->position;
+                       switch (position) {
+                       case SENSOR_POSITION_REAR:
+                               *dma_ch |= 1 << 0;
+                               *dma_ch |= 1 << 4;
+                               break;
+                       case SENSOR_POSITION_FRONT:
+                               *dma_ch |= 1 << 1;
+                               break;
+                       case SENSOR_POSITION_REAR2:
+                               *dma_ch |= 1 << 2;
+                               break;
+                       case SENSOR_POSITION_SECURE:
+                               *dma_ch |= 1 << 3;
+                               break;
+                       default:
+                               err("invalid sensor(%d)", position);
+                               ret = -EINVAL;
+                               goto p_err;
+                       }
+               }
+       }
+       if (open_sensor_count != 1 && open_sensor_count != 2) {
+               err("invalid open sensor limit(%d)", open_sensor_count);
+               ret = -EINVAL;
+       }
+p_err:
+       return ret;
+}