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Subject[PATCH v2 13/15] [media] mtk-mipicsi: add the function for Get/Set PARM for application
Date
This patch add the function for Get/Set PARM for application.

Application can get the information about number of link.

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
.../media/platform/mtk-mipicsi/mtk_mipicsi.c | 34 +++++++++++++++++++
1 file changed, 34 insertions(+)

diff --git a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
index 5e4028d0d5e1..5db9c68b0da9 100644
--- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
+++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c
@@ -346,6 +346,38 @@ static int get_subdev_link(const struct soc_camera_device *icd,
return 0;
}

+static int mtk_mipicsi_get_parm(struct soc_camera_device *icd,
+ struct v4l2_streamparm *a)
+{
+ unsigned int link = 0U;
+ u8 link_reg_val = 0x0U;
+ int ret = 0;
+
+ /*get camera link number*/
+ ret = get_subdev_link(icd, &link, &link_reg_val);
+ if (ret < 0)
+ return ret;
+
+ a->parm.capture.timeperframe.numerator = 1;
+ a->parm.capture.timeperframe.denominator = 30;
+ a->parm.capture.reserved[0] = link_reg_val;
+ a->parm.capture.reserved[1] = (u32)(icd->use_count);
+ dev_info(icd->parent, "use count %d\n", icd->use_count);
+
+ return 0;
+}
+
+static int mtk_mipicsi_set_param(struct soc_camera_device *icd,
+ struct v4l2_streamparm *a)
+{
+ struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
+
+ if (ici->ops->get_parm == NULL)
+ return ici->ops->get_parm(icd, a);
+
+ return 0;
+}
+
static u32 get_bytesperline(const u32 fmt, const u32 width)
{
u32 bytesperline = 0;
@@ -884,6 +916,8 @@ static struct soc_camera_host_ops mtk_soc_camera_host_ops = {
.poll = vb2_fop_poll,
.querycap = mtk_mipicsi_querycap,
.set_bus_param = mtk_mipicsi_set_bus_param,
+ .get_parm = mtk_mipicsi_get_parm,
+ .set_parm = mtk_mipicsi_set_param,
};

static void mtk_mipicsi_ana_init(void __iomem *base)
--
2.18.0
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