| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (c) 2024, The Linux Foundation. All rights reserved. |
| */ |
| |
| #ifndef _DP_UTILS_H_ |
| #define _DP_UTILS_H_ |
| |
| #include <linux/bitfield.h> |
| #include <linux/bits.h> |
| #include <drm/display/drm_dp_helper.h> |
| |
| #define HEADER_BYTE_0_BIT 0 |
| #define PARITY_BYTE_0_BIT 8 |
| #define HEADER_BYTE_1_BIT 16 |
| #define PARITY_BYTE_1_BIT 24 |
| #define HEADER_BYTE_2_BIT 0 |
| #define PARITY_BYTE_2_BIT 8 |
| #define HEADER_BYTE_3_BIT 16 |
| #define PARITY_BYTE_3_BIT 24 |
| |
| #define HEADER_0_MASK GENMASK(7, 0) |
| #define PARITY_0_MASK GENMASK(15, 8) |
| #define HEADER_1_MASK GENMASK(23, 16) |
| #define PARITY_1_MASK GENMASK(31, 24) |
| #define HEADER_2_MASK GENMASK(7, 0) |
| #define PARITY_2_MASK GENMASK(15, 8) |
| #define HEADER_3_MASK GENMASK(23, 16) |
| #define PARITY_3_MASK GENMASK(31, 24) |
| |
| u8 dp_utils_get_g0_value(u8 data); |
| u8 dp_utils_get_g1_value(u8 data); |
| u8 dp_utils_calculate_parity(u32 data); |
| ssize_t dp_utils_pack_sdp_header(struct dp_sdp_header *sdp_header, u32 *header_buff); |
| |
| #endif /* _DP_UTILS_H_ */ |
