mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-07 14:19:35 +00:00
d84927a4ad
cdns_mhdp_hdcp_set_lc() and cdns_mhdp_hdcp_set_public_key_param()
were added by commit
6a3608eae6 ("drm: bridge: cdns-mhdp8546: Enable HDCP")
but never used.
Remove them.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241005232017.305217-1-linux@treblig.org
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Cadence MHDP8546 DP bridge driver.
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*
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* Copyright (C) 2020 Cadence Design Systems, Inc.
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*
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*/
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#ifndef CDNS_MHDP8546_HDCP_H
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#define CDNS_MHDP8546_HDCP_H
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#include "cdns-mhdp8546-core.h"
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#define HDCP_MAX_RECEIVERS 32
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#define HDCP_RECEIVER_ID_SIZE_BYTES 5
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#define HDCP_STATUS_SIZE 0x5
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#define HDCP_PORT_STS_AUTH 0x1
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#define HDCP_PORT_STS_LAST_ERR_SHIFT 0x5
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#define HDCP_PORT_STS_LAST_ERR_MASK (0x0F << 5)
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#define GET_HDCP_PORT_STS_LAST_ERR(__sts__) \
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(((__sts__) & HDCP_PORT_STS_LAST_ERR_MASK) >> \
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HDCP_PORT_STS_LAST_ERR_SHIFT)
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#define HDCP_CONFIG_1_4 BIT(0) /* use HDCP 1.4 only */
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#define HDCP_CONFIG_2_2 BIT(1) /* use HDCP 2.2 only */
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/* use All HDCP versions */
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#define HDCP_CONFIG_ALL (BIT(0) | BIT(1))
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#define HDCP_CONFIG_NONE 0
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enum {
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HDCP_GENERAL_SET_LC_128,
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HDCP_SET_SEED,
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};
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enum {
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HDCP_TRAN_CONFIGURATION,
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HDCP2X_TX_SET_PUBLIC_KEY_PARAMS,
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HDCP2X_TX_SET_DEBUG_RANDOM_NUMBERS,
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HDCP2X_TX_RESPOND_KM,
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HDCP1_TX_SEND_KEYS,
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HDCP1_TX_SEND_RANDOM_AN,
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HDCP_TRAN_STATUS_CHANGE,
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HDCP2X_TX_IS_KM_STORED,
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HDCP2X_TX_STORE_KM,
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HDCP_TRAN_IS_REC_ID_VALID,
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HDCP_TRAN_RESPOND_RECEIVER_ID_VALID,
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HDCP_TRAN_TEST_KEYS,
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HDCP2X_TX_SET_KM_KEY_PARAMS,
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HDCP_NUM_OF_SUPPORTED_MESSAGES
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};
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enum {
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HDCP_CONTENT_TYPE_0,
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HDCP_CONTENT_TYPE_1,
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};
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#define DRM_HDCP_CHECK_PERIOD_MS (128 * 16)
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#define HDCP_PAIRING_R_ID 5
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#define HDCP_PAIRING_M_LEN 16
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#define HDCP_KM_LEN 16
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#define HDCP_PAIRING_M_EKH 16
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struct cdns_hdcp_pairing_data {
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u8 receiver_id[HDCP_PAIRING_R_ID];
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u8 m[HDCP_PAIRING_M_LEN];
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u8 km[HDCP_KM_LEN];
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u8 ekh[HDCP_PAIRING_M_EKH];
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};
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enum {
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HDCP_TX_2,
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HDCP_TX_1,
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HDCP_TX_BOTH,
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};
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#define DLP_MODULUS_N 384
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#define DLP_E 3
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struct cdns_hdcp_tx_public_key_param {
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u8 N[DLP_MODULUS_N];
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u8 E[DLP_E];
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};
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int cdns_mhdp_hdcp_enable(struct cdns_mhdp_device *mhdp, u8 content_type);
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int cdns_mhdp_hdcp_disable(struct cdns_mhdp_device *mhdp);
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void cdns_mhdp_hdcp_init(struct cdns_mhdp_device *mhdp);
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#endif
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