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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
commit | 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 (patch) | |
tree | bcf648efac40ca6139842707f0eba5a4496a6dd2 /plat/rockchip/rk3399/drivers/dp | |
parent | Initial commit. (diff) | |
download | arm-trusted-firmware-102b0d2daa97dae68d3eed54d8fe37a9cc38a892.tar.xz arm-trusted-firmware-102b0d2daa97dae68d3eed54d8fe37a9cc38a892.zip |
Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plat/rockchip/rk3399/drivers/dp')
-rw-r--r-- | plat/rockchip/rk3399/drivers/dp/cdn_dp.c | 70 | ||||
-rw-r--r-- | plat/rockchip/rk3399/drivers/dp/cdn_dp.h | 49 |
2 files changed, 119 insertions, 0 deletions
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 <assert.h> +#include <cdefs.h> +#include <stdlib.h> +#include <string.h> + +#include <lib/smccc.h> + +#include <cdn_dp.h> + +__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; +} diff --git a/plat/rockchip/rk3399/drivers/dp/cdn_dp.h b/plat/rockchip/rk3399/drivers/dp/cdn_dp.h new file mode 100644 index 0000000..c5cbae2 --- /dev/null +++ b/plat/rockchip/rk3399/drivers/dp/cdn_dp.h @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef CDN_DP_H +#define CDN_DP_H + +#include <plat_private.h> + +enum { + CDN_DP_HDCP_1X_KSV_LEN = 5, + CDN_DP_HDCP_KSV_LEN = 8, + CDN_DP_HDCP_RESERVED_LEN = 10, + CDN_DP_HDCP_UID_LEN = 16, + CDN_DP_HDCP_SHA_LEN = 20, + CDN_DP_HDCP_DPK_LEN = 280, + CDN_DP_HDCP_1X_KEYS_LEN = 285, + CDN_DP_HDCP_KEY_LEN = 326, +}; + +struct cdn_dp_hdcp_key_1x { + uint8_t ksv[CDN_DP_HDCP_KSV_LEN]; + uint8_t device_key[CDN_DP_HDCP_DPK_LEN]; + uint8_t sha1[CDN_DP_HDCP_SHA_LEN]; + uint8_t uid[CDN_DP_HDCP_UID_LEN]; + uint16_t seed; + uint8_t reserved[CDN_DP_HDCP_RESERVED_LEN]; +}; + +#define HDCP_KEY_DATA_START_TRANSFER 0 +#define HDCP_KEY_DATA_START_DECRYPT 1 +#define HDCP_KEY_1X_STORE_DATA_ALIGN_SIZE (6 * 64) / 8 + +/* Checks the cdn_dp_hdcp_key_1x must be aligned on 6 x 64-bit word boundary */ +CASSERT(sizeof(struct cdn_dp_hdcp_key_1x) % HDCP_KEY_1X_STORE_DATA_ALIGN_SIZE, \ + assert_hdcp_key_1x_store_data_align_size_mismatch); + +uint64_t dp_hdcp_ctrl(uint64_t type); + +uint64_t dp_hdcp_store_key(uint64_t x1, + uint64_t x2, + uint64_t x3, + uint64_t x4, + uint64_t x5, + uint64_t x6); + +#endif /* CDN_DP_H */ |