xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

firmware: qcom: scm: Add HDCP Support

Browse Source 
HDCP driver needs to check if secure environment supports HDCP.  If it's
supported, then it requires to program some registers through SCM.
Add qcom_scm_hdcp_available and qcom_scm_hdcp_req to support these
requirements.

Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
This commit is contained in:
jilai wang
2015-04-10 16:15:59 -04:00
committed by Kumar Gala
parent b6a1dfbc7d
commit 9626b6993b
4 changed files with 77 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/firmware/qcom_scm-32.c
View File

@@ -1,4 +1,4 @@
/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
/* Copyright (c) 2010,2015, The Linux Foundation. All rights reserved.
* Copyright (C) 2015 Linaro Ltd.
*
* This program is free software; you can redistribute it and/or modify
@@ -478,3 +478,26 @@ void __qcom_scm_cpu_power_down(u32 flags)
qcom_scm_call_atomic1(QCOM_SCM_SVC_BOOT, QCOM_SCM_CMD_TERMINATE_PC,
flags & QCOM_SCM_FLUSH_FLAG_MASK);
}
int __qcom_scm_is_call_available(u32 svc_id, u32 cmd_id)
{
int ret;
u32 svc_cmd = (svc_id << 10) | cmd_id;
u32 ret_val = 0;
ret = qcom_scm_call(QCOM_SCM_SVC_INFO, QCOM_IS_CALL_AVAIL_CMD, &svc_cmd,
sizeof(svc_cmd), &ret_val, sizeof(ret_val));
if (ret)
return ret;
return ret_val;
}
int __qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp)
{
if (req_cnt > QCOM_SCM_HDCP_MAX_REQ_CNT)
return -ERANGE;
return qcom_scm_call(QCOM_SCM_SVC_HDCP, QCOM_SCM_CMD_HDCP,
req, req_cnt * sizeof(*req), resp, sizeof(*resp));
}