diff options
| author | Ajay Singh Parmar <aparmar@codeaurora.org> | 2015-11-22 18:06:34 -0800 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 21:14:11 -0700 |
| commit | b3e68382ffcfdff0dbbdc9d3cc06f8132c014e65 (patch) | |
| tree | 9bffde2ca902769d92333e537f5320f2c0ed5792 /drivers/misc | |
| parent | 178d4d6f8b7920e8038de802a2c0cfd2a66df39a (diff) | |
msm: mdss: hdmi: add dynamic encryption enable support
Implement qseecomm API to send command to TZ to enable/disable
encryption based on hdcp status. Enable encryption when hdcp
part 1 is successful and disable it when cable is disconnected
or authentication fails.
Change-Id: Ia5e1a5927dad36abc3093b16638879be823c84df
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/hdcp.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/misc/hdcp.c b/drivers/misc/hdcp.c index 66b1135fe855..45638e4fcbcf 100644 --- a/drivers/misc/hdcp.c +++ b/drivers/misc/hdcp.c @@ -64,6 +64,7 @@ #define REPEATER_AUTH_STREAM_MANAGE_MESSAGE_ID 16 #define REPEATER_AUTH_STREAM_READY_MESSAGE_ID 17 #define HDCP1_SET_KEY_MESSAGE_ID 202 +#define HDCP1_SET_ENC_MESSAGE_ID 205 #define BITS_8_IN_BYTES 1 #define BITS_16_IN_BYTES 2 @@ -316,6 +317,16 @@ struct __attribute__ ((__packed__)) repeater_info_struct { uint32_t ReceiverIDListLen; }; +struct __attribute__ ((__packed__)) hdcp1_set_enc_req { + uint32_t commandid; + uint32_t enable; +}; + +struct __attribute__ ((__packed__)) hdcp1_set_enc_rsp { + uint32_t commandid; + uint32_t ret; +}; + /* * struct hdcp_lib_handle - handle for hdcp client * @qseecom_handle - for sending commands to qseecom @@ -1362,6 +1373,41 @@ int hdcp1_set_keys(uint32_t *aksv_msb, uint32_t *aksv_lsb) return 0; } +int hdcp1_set_enc(bool enable) +{ + int rc = 0; + struct hdcp1_set_enc_req *set_enc_req; + struct hdcp1_set_enc_rsp *set_enc_rsp; + + if (!hdcp1_supported || !hdcp1_handle) + return -EINVAL; + + /* set keys and request aksv */ + set_enc_req = (struct hdcp1_set_enc_req *)hdcp1_handle->sbuf; + set_enc_req->commandid = HDCP1_SET_ENC_MESSAGE_ID; + set_enc_req->enable = enable; + set_enc_rsp = (struct hdcp1_set_enc_rsp *)(hdcp1_handle->sbuf + + QSEECOM_ALIGN(sizeof(struct hdcp1_set_enc_req))); + rc = qseecom_send_command(hdcp1_handle, + set_enc_req, QSEECOM_ALIGN(sizeof(struct hdcp1_set_enc_req)), + set_enc_rsp, QSEECOM_ALIGN(sizeof(struct hdcp1_set_enc_rsp))); + + if (rc < 0) { + pr_err("qseecom cmd failed err=%d\n", rc); + return -EINVAL; + } + + rc = set_enc_rsp->ret; + if (rc) { + pr_err("enc cmd failed, rsp=%d\n", + set_enc_rsp->ret); + return -EINVAL; + } + + pr_debug("success\n"); + return 0; +} + int hdcp_library_register(struct hdcp_register_data *data) { int rc = 0; |