[Why]
We need to read and write specific i2c and dpcd messages.
[How]
Created static functions for packing the dpcd and i2c messages for hdcp.
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@xxxxxxx>
Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
---
.../amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | 40 ++++++++++++++++++-
1 file changed, 39 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
index 004b6e8e9ed5..9d11d7695508 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
@@ -26,6 +26,41 @@
#include "amdgpu_dm_hdcp.h"
#include "amdgpu.h"
#include "amdgpu_dm.h"
+#include "dm_helpers.h"
+
+bool lp_write_i2c(void *handle, uint32_t address, const uint8_t *data, uint32_t size)
+{
+
+ struct dc_link *link = handle;
+ struct i2c_payload i2c_payloads[] = {{true, address, size, (void *)data} };
+ struct i2c_command cmd = {i2c_payloads, 1, I2C_COMMAND_ENGINE_HW, link->dc->caps.i2c_speed_in_khz};
+
+ return dm_helpers_submit_i2c(link->ctx, link, &cmd);
+}
+
+bool lp_read_i2c(void *handle, uint32_t address, uint8_t offset, uint8_t *data, uint32_t size)
+{
+ struct dc_link *link = handle;
+
+ struct i2c_payload i2c_payloads[] = {{true, address, 1, &offset}, {false, address, size, data} };
+ struct i2c_command cmd = {i2c_payloads, 2, I2C_COMMAND_ENGINE_HW, link->dc->caps.i2c_speed_in_khz};
+
+ return dm_helpers_submit_i2c(link->ctx, link, &cmd);
+}
+
+bool lp_write_dpcd(void *handle, uint32_t address, const uint8_t *data, uint32_t size)
+{
+ struct dc_link *link = handle;
+
+ return dm_helpers_dp_write_dpcd(link->ctx, link, address, data, size);
+}
+
+bool lp_read_dpcd(void *handle, uint32_t address, uint8_t *data, uint32_t size)
+{
+ struct dc_link *link = handle;
+
+ return dm_helpers_dp_read_dpcd(link->ctx, link, address, data, size);
+}
static void process_output(struct hdcp_workqueue *hdcp_work)
{
@@ -220,7 +255,10 @@ struct hdcp_workqueue *hdcp_create_workqueue(void *psp_context, struct cp_psp *c
hdcp_work[i].hdcp.config.psp.handle = psp_context;
hdcp_work[i].hdcp.config.ddc.handle = dc_get_link_at_index(dc, i);
-
+ hdcp_work[i].hdcp.config.ddc.funcs.write_i2c = lp_write_i2c;
+ hdcp_work[i].hdcp.config.ddc.funcs.read_i2c = lp_read_i2c;
+ hdcp_work[i].hdcp.config.ddc.funcs.write_dpcd = lp_write_dpcd;
+ hdcp_work[i].hdcp.config.ddc.funcs.read_dpcd = lp_read_dpcd;
}
cp_psp->funcs.update_stream_config = update_config;
--
2.17.1
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