From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:13:47 +0200 Subject: Adding upstream version 2.8.0+dfsg. Signed-off-by: Daniel Baumann --- plat/rockchip/rk3399/drivers/dp/cdn_dp.c | 70 ++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 plat/rockchip/rk3399/drivers/dp/cdn_dp.c (limited to 'plat/rockchip/rk3399/drivers/dp/cdn_dp.c') diff --git a/plat/rockchip/rk3399/drivers/dp/cdn_dp.c b/plat/rockchip/rk3399/drivers/dp/cdn_dp.c new file mode 100644 index 0000000..a8773f4 --- /dev/null +++ b/plat/rockchip/rk3399/drivers/dp/cdn_dp.c @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include +#include +#include +#include + +#include + +#include + +__asm__( + ".pushsection .text.hdcp_handler, \"ax\", %progbits\n" + ".global hdcp_handler\n" + ".balign 4\n" + "hdcp_handler:\n" + ".incbin \"" HDCPFW "\"\n" + ".type hdcp_handler, %function\n" + ".size hdcp_handler, .- hdcp_handler\n" + ".popsection\n" +); + +static uint64_t *hdcp_key_pdata; +static struct cdn_dp_hdcp_key_1x key; + +int hdcp_handler(struct cdn_dp_hdcp_key_1x *key); + +uint64_t dp_hdcp_ctrl(uint64_t type) +{ + switch (type) { + case HDCP_KEY_DATA_START_TRANSFER: + memset(&key, 0x00, sizeof(key)); + hdcp_key_pdata = (uint64_t *)&key; + return 0; + case HDCP_KEY_DATA_START_DECRYPT: + if (hdcp_key_pdata == (uint64_t *)(&key + 1)) + return hdcp_handler(&key); + else + return PSCI_E_INVALID_PARAMS; + assert(0); /* Unreachable */ + default: + return SMC_UNK; + } +} + +uint64_t dp_hdcp_store_key(uint64_t x1, + uint64_t x2, + uint64_t x3, + uint64_t x4, + uint64_t x5, + uint64_t x6) +{ + if (hdcp_key_pdata < (uint64_t *)&key || + hdcp_key_pdata + 6 > (uint64_t *)(&key + 1)) + return PSCI_E_INVALID_PARAMS; + + hdcp_key_pdata[0] = x1; + hdcp_key_pdata[1] = x2; + hdcp_key_pdata[2] = x3; + hdcp_key_pdata[3] = x4; + hdcp_key_pdata[4] = x5; + hdcp_key_pdata[5] = x6; + hdcp_key_pdata += 6; + + return 0; +} -- cgit v1.2.3