1 /*
2 * Copyright (c) 2020, MediaTek Inc. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #include <inttypes.h>
8
9 #include <common/debug.h>
10 #include <lib/mmio.h>
11 #include <mt_dp.h>
12 #include <mtk_sip_svc.h>
13 #include <platform_def.h>
14
dp_write_sec_reg(uint32_t is_edp,uint32_t offset,uint32_t value,uint32_t mask)15 static uint32_t dp_write_sec_reg(uint32_t is_edp, uint32_t offset,
16 uint32_t value, uint32_t mask)
17 {
18 uint32_t reg = (is_edp != 0U) ? eDP_SEC_BASE : DP_SEC_BASE;
19
20 mmio_clrsetbits_32(reg + offset, mask, value);
21
22 return mmio_read_32(reg + offset);
23 }
24
dp_secure_handler(uint64_t cmd,uint64_t para,uint32_t * val)25 int32_t dp_secure_handler(uint64_t cmd, uint64_t para, uint32_t *val)
26 {
27 int32_t ret = 0L;
28 uint32_t is_edp = 0UL;
29 uint32_t regval = 0UL;
30 uint32_t regmsk = 0UL;
31 uint32_t fldmask = 0UL;
32
33 if ((cmd > DP_ATF_CMD_COUNT) || (val == NULL)) {
34 INFO("dp_secure_handler error cmd 0x%" PRIx64 "\n", cmd);
35 return MTK_SIP_E_INVALID_PARAM;
36 }
37
38 switch (cmd) {
39 case DP_ATF_DP_VIDEO_UNMUTE:
40 INFO("[%s] DP_ATF_DP_VIDEO_UNMUTE\n", __func__);
41 is_edp = DP_ATF_TYPE_DP;
42 ret = MTK_SIP_E_SUCCESS;
43 break;
44 case DP_ATF_EDP_VIDEO_UNMUTE:
45 INFO("[%s] DP_ATF_EDP_VIDEO_UNMUTE\n", __func__);
46 is_edp = DP_ATF_TYPE_EDP;
47 ret = MTK_SIP_E_SUCCESS;
48 break;
49 default:
50 ret = MTK_SIP_E_INVALID_PARAM;
51 break;
52 }
53
54 if (ret == MTK_SIP_E_SUCCESS) {
55 regmsk = (VIDEO_MUTE_SEL_SECURE_FLDMASK |
56 VIDEO_MUTE_SW_SECURE_FLDMASK);
57 if (para > 0U) {
58 fldmask = VIDEO_MUTE_SW_SECURE_FLDMASK;
59 } else {
60 fldmask = 0;
61 }
62
63 regval = (VIDEO_MUTE_SEL_SECURE_FLDMASK | fldmask);
64 *val = dp_write_sec_reg(is_edp, DP_TX_SECURE_REG11,
65 regval, regmsk);
66 }
67
68 return ret;
69 }
70