| /* Copyright (c) 2017, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef _SDE_HW_ROT_H |
| #define _SDE_HW_ROT_H |
| |
| #include "sde_hw_catalog.h" |
| #include "sde_hw_mdss.h" |
| #include "sde_hw_util.h" |
| #include "sde_hw_blk.h" |
| |
| #define SDE_HW_ROT_NAME_SIZE 80 |
| |
| struct sde_hw_rot; |
| |
| /** |
| * enum sde_hw_rot_cmd_type - type of rotator hardware command |
| * @SDE_HW_ROT_CMD_VALDIATE: validate rotator command; do not commit |
| * @SDE_HW_ROT_CMD_COMMIT: commit/execute rotator command |
| * @SDE_HW_ROT_CMD_START: mdp is ready to start |
| * @SDE_HW_ROT_CMD_CLEANUP: cleanup rotator command after it is done |
| * @SDE_HW_ROT_CMD_RESET: request rotator h/w reset |
| */ |
| enum sde_hw_rot_cmd_type { |
| SDE_HW_ROT_CMD_VALIDATE, |
| SDE_HW_ROT_CMD_COMMIT, |
| SDE_HW_ROT_CMD_START, |
| SDE_HW_ROT_CMD_CLEANUP, |
| SDE_HW_ROT_CMD_RESET, |
| }; |
| |
| /** |
| * struct sde_hw_rot_cmd - definition of hardware rotation command |
| * @master: true if client is the master in source split inline rotation |
| * @sequence_id: command sequence identifier |
| * @fps: frame rate of the stream in frame per second |
| * @rot90: true if rotation 90 in counter clockwise is required |
| * @hflip: true if horizontal flip is required prior to rotation |
| * @vflip: true if vertical flip is required prior to rotation |
| * @secure: true if image content is in secure domain |
| * @video_mode: true if rotator is feeding into video interface |
| * @clkrate : clock rate in Hz |
| * @prefill_bw: prefill bandwidth in Bps (video mode only) |
| * @src_iova: source i/o virtual address |
| * @src_len: source i/o buffer length |
| * @src_planes: source plane number |
| * @src_format: pointer to source sde pixel format |
| * @src_pixel_format: source pixel format in drm fourcc |
| * @src_modifier: source pixel format modifier |
| * @src_width: source width in pixel |
| * @src_height: source height in pixel |
| * @src_rect_x: source rectangle x coordinate |
| * @src_rect_y: source rectangle y coordinate |
| * @src_rect_w: source rectangle width |
| * @src_rect_h: source rectangle height |
| * @dst_writeback: true if writeback of rotated output is required |
| * @dst_iova: destination i/o virtual address |
| * @dst_len: destination i/o buffer length |
| * @dst_planes: destination plane number |
| * @dst_format: pointer to destination sde pixel format (input/output) |
| * @dst_pixel_format: destination pixel format in drm fourcc (input/output) |
| * @dst_modifier: destination pixel format modifier (input/output) |
| * @dst_rect_x: destination rectangle x coordinate |
| * @dst_rect_y: destination rectangle y coordinate |
| * @dst_rect_w: destination rectangle width |
| * @dst_rect_h: destination rectangle height |
| * @priv_handle: private handle of rotator driver (output) |
| */ |
| struct sde_hw_rot_cmd { |
| bool master; |
| u32 sequence_id; |
| u32 fps; |
| bool rot90; |
| bool hflip; |
| bool vflip; |
| bool secure; |
| bool video_mode; |
| u64 clkrate; |
| u64 prefill_bw; |
| dma_addr_t src_iova[4]; |
| u32 src_len[4]; |
| u32 src_planes; |
| const struct sde_format *src_format; |
| u32 src_pixel_format; |
| u64 src_modifier; |
| u32 src_width; |
| u32 src_height; |
| u32 src_stride; |
| u32 src_rect_x; |
| u32 src_rect_y; |
| u32 src_rect_w; |
| u32 src_rect_h; |
| bool dst_writeback; |
| dma_addr_t dst_iova[4]; |
| u32 dst_len[4]; |
| u32 dst_planes; |
| const struct sde_format *dst_format; |
| u32 dst_pixel_format; |
| u64 dst_modifier; |
| u32 dst_rect_x; |
| u32 dst_rect_y; |
| u32 dst_rect_w; |
| u32 dst_rect_h; |
| void *priv_handle; |
| }; |
| |
| /** |
| * struct sde_hw_rot_ops - interface to the rotator hw driver functions |
| * Assumption is these functions will be called after clocks are enabled |
| */ |
| struct sde_hw_rot_ops { |
| int (*commit)(struct sde_hw_rot *hw, struct sde_hw_rot_cmd *data, |
| enum sde_hw_rot_cmd_type cmd); |
| const struct sde_format_extended *(*get_format_caps)( |
| struct sde_hw_rot *hw); |
| const char *(*get_downscale_caps)(struct sde_hw_rot *hw); |
| size_t (*get_cache_size)(struct sde_hw_rot *hw); |
| int (*get_maxlinewidth)(struct sde_hw_rot *hw); |
| }; |
| |
| /** |
| * struct sde_hw_rot : ROT driver object |
| * @base: hw block base object |
| * @hw: hardware address map |
| * @idx: instance index |
| * @caps: capabilities bitmask |
| * @ops: operation table |
| * @rot_ctx: pointer to private rotator context |
| * @format_caps: pointer to pixel format capability array |
| * @downscale_caps: pointer to scaling capability string |
| */ |
| struct sde_hw_rot { |
| struct sde_hw_blk base; |
| struct sde_hw_blk_reg_map hw; |
| char name[SDE_HW_ROT_NAME_SIZE]; |
| int idx; |
| const struct sde_rot_cfg *caps; |
| struct sde_hw_rot_ops ops; |
| void *rot_ctx; |
| struct sde_format_extended *format_caps; |
| char *downscale_caps; |
| }; |
| |
| /** |
| * sde_hw_rot_init - initialize and return rotator hw driver object. |
| * @idx: wb_path index for which driver object is required |
| * @addr: mapped register io address of MDP |
| * @m : pointer to mdss catalog data |
| */ |
| struct sde_hw_rot *sde_hw_rot_init(enum sde_rot idx, |
| void __iomem *addr, |
| struct sde_mdss_cfg *m); |
| |
| /** |
| * sde_hw_rot_destroy - destroy rotator hw driver object. |
| * @hw_rot: Pointer to rotator hw driver object |
| */ |
| void sde_hw_rot_destroy(struct sde_hw_rot *hw_rot); |
| |
| /** |
| * to_sde_hw_rot - convert base object sde_hw_base to rotator object |
| * @hw: Pointer to base hardware block |
| * return: Pointer to rotator hardware block |
| */ |
| static inline struct sde_hw_rot *to_sde_hw_rot(struct sde_hw_blk *hw) |
| { |
| return container_of(hw, struct sde_hw_rot, base); |
| } |
| |
| /** |
| * sde_hw_rot_get - get next available hardware rotator, or increment reference |
| * count if hardware rotator provided |
| * @hw_rot: Pointer to hardware rotator |
| * return: Pointer to rotator hardware block if success; NULL otherwise |
| */ |
| struct sde_hw_rot *sde_hw_rot_get(struct sde_hw_rot *hw_rot); |
| |
| /** |
| * sde_hw_rot_put - put the given hardware rotator |
| * @hw_rot: Pointer to hardware rotator |
| * return: none |
| */ |
| void sde_hw_rot_put(struct sde_hw_rot *hw_rot); |
| |
| #endif /*_SDE_HW_ROT_H */ |