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Subject[PATCH v4 10/14] [media] mtk-mipicsi: set the output address in HW reg
Date
This patch set the output address in HW reg when buffer queue and ISR.

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
.../media/platform/mtk-mipicsi/mtk_mipicsi.c | 35 +++++++++++++++++++
1 file changed, 35 insertions(+)

diff --git a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
index dc5c5c888914..9e45786a0282 100644
--- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
+++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
@@ -100,6 +100,7 @@
#define CAMSV_TG_SEN_GRAB_LIN 0x50C
#define CAMSV_TG_PATH_CFG 0x510

+#define IMGO_BASE_ADDR 0x220
#define IMGO_XSIZE 0x230
#define IMGO_YSIZE 0x234
#define IMGO_STRIDE 0x238
@@ -538,6 +539,32 @@ static int mtk_mipicsi_vb2_prepare(struct vb2_buffer *vb)
return 0;
}

+static void mtk_mipicsi_fill_buffer(void __iomem *base, dma_addr_t dma_handle)
+{
+ writel(dma_handle, base + IMGO_BASE_ADDR);
+}
+
+static void mtk_mipicsi_write_camsv(struct mtk_mipicsi_dev *mipicsi,
+ unsigned int index,
+ unsigned int max_camsv_num)
+{
+ struct mtk_mipicsi_channel *ch = mipicsi->channel;
+ unsigned int i = 0;
+ u8 link_index = 0;
+ u32 bytesperline = mipicsi->fmt.fmt.pix.bytesperline;
+ u32 height = mipicsi->fmt.fmt.pix.height;
+ u64 offset = 0;
+
+ for (i = 0; i < max_camsv_num; i++)
+ if (((mipicsi->link_reg_val >> i) & 0x01) == 0x01) {
+ offset = (u64)link_index * bytesperline * height;
+ mtk_mipicsi_fill_buffer(ch[i].camsv,
+ mipicsi->cam_buf[index].vb_dma_addr_phy
+ + offset);
+ link_index++;
+ }
+}
+
static void mtk_mipicsi_vb2_queue(struct vb2_buffer *vb)
{
struct mtk_mipicsi_dev *mipicsi = vb2_get_drv_priv(vb->vb2_queue);
@@ -546,6 +573,12 @@ static void mtk_mipicsi_vb2_queue(struct vb2_buffer *vb)
list_add_tail(&(mipicsi->cam_buf[vb->index].queue),
&(mipicsi->fb_list));
spin_unlock(&mipicsi->queue_lock);
+
+ spin_lock(&mipicsi->irqlock);
+ if (!mipicsi->streamon)
+ mtk_mipicsi_write_camsv(mipicsi, vb->index, mipicsi->camsv_num);
+
+ spin_unlock(&mipicsi->irqlock);
}

static void mtk_mipicsi_cmos_vf_enable(struct mtk_mipicsi_dev *mipicsi,
@@ -875,6 +908,8 @@ static void mtk_mipicsi_irq_buf_process(struct mtk_mipicsi_dev *mipicsi)
++i;
}

+ mtk_mipicsi_write_camsv(mipicsi, next, mipicsi->camsv_num);
+
/*
* fb_list has one more buffer. Free the first buffer to user
* and fill the second buffer to HW.
--
2.18.0
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