1/* 2 * Copyright (c) 2015-2016 MediaTek Inc. 3 * Author: Houlong Wei <houlong.wei@mediatek.com> 4 * Ming Hsiu Tsai <minghsiu.tsai@mediatek.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 */ 15 16#ifndef __MTK_MDP_CORE_H__ 17#define __MTK_MDP_CORE_H__ 18 19#include <linux/videodev2.h> 20#include <media/v4l2-ctrls.h> 21#include <media/v4l2-device.h> 22#include <media/v4l2-mem2mem.h> 23#include <media/videobuf2-core.h> 24#include <media/videobuf2-dma-contig.h> 25 26#include "mtk_mdp_vpu.h" 27#include "mtk_mdp_comp.h" 28 29 30#define MTK_MDP_MODULE_NAME "mtk-mdp" 31 32#define MTK_MDP_SHUTDOWN_TIMEOUT ((100*HZ)/1000) /* 100ms */ 33#define MTK_MDP_MAX_CTRL_NUM 10 34 35#define MTK_MDP_FMT_FLAG_OUTPUT BIT(0) 36#define MTK_MDP_FMT_FLAG_CAPTURE BIT(1) 37 38#define MTK_MDP_VPU_INIT BIT(0) 39#define MTK_MDP_SRC_FMT BIT(1) 40#define MTK_MDP_DST_FMT BIT(2) 41#define MTK_MDP_CTX_ERROR BIT(5) 42 43/** 44 * struct mtk_mdp_pix_align - alignement of image 45 * @org_w: source alignment of width 46 * @org_h: source alignment of height 47 * @target_w: dst alignment of width 48 * @target_h: dst alignment of height 49 */ 50struct mtk_mdp_pix_align { 51 u16 org_w; 52 u16 org_h; 53 u16 target_w; 54 u16 target_h; 55}; 56 57/** 58 * struct mtk_mdp_fmt - the driver's internal color format data 59 * @pixelformat: the fourcc code for this format, 0 if not applicable 60 * @num_planes: number of physically non-contiguous data planes 61 * @num_comp: number of logical data planes 62 * @depth: per plane driver's private 'number of bits per pixel' 63 * @row_depth: per plane driver's private 'number of bits per pixel per row' 64 * @flags: flags indicating which operation mode format applies to 65 MTK_MDP_FMT_FLAG_OUTPUT is used in OUTPUT stream 66 MTK_MDP_FMT_FLAG_CAPTURE is used in CAPTURE stream 67 * @align: pointer to a pixel alignment struct, NULL if using default value 68 */ 69struct mtk_mdp_fmt { 70 u32 pixelformat; 71 u16 num_planes; 72 u16 num_comp; 73 u8 depth[VIDEO_MAX_PLANES]; 74 u8 row_depth[VIDEO_MAX_PLANES]; 75 u32 flags; 76 struct mtk_mdp_pix_align *align; 77}; 78 79/** 80 * struct mtk_mdp_addr - the image processor physical address set 81 * @addr: address of planes 82 */ 83struct mtk_mdp_addr { 84 dma_addr_t addr[MTK_MDP_MAX_NUM_PLANE]; 85}; 86 87/* struct mtk_mdp_ctrls - the image processor control set 88 * @rotate: rotation degree 89 * @hflip: horizontal flip 90 * @vflip: vertical flip 91 * @global_alpha: the alpha value of current frame 92 */ 93struct mtk_mdp_ctrls { 94 struct v4l2_ctrl *rotate; 95 struct v4l2_ctrl *hflip; 96 struct v4l2_ctrl *vflip; 97 struct v4l2_ctrl *global_alpha; 98}; 99 100/** 101 * struct mtk_mdp_frame - source/target frame properties 102 * @width: SRC : SRCIMG_WIDTH, DST : OUTPUTDMA_WHOLE_IMG_WIDTH 103 * @height: SRC : SRCIMG_HEIGHT, DST : OUTPUTDMA_WHOLE_IMG_HEIGHT 104 * @crop: cropped(source)/scaled(destination) size 105 * @payload: image size in bytes (w x h x bpp) 106 * @pitch: bytes per line of image in memory 107 * @addr: image frame buffer physical addresses 108 * @fmt: color format pointer 109 * @alpha: frame's alpha value 110 */ 111struct mtk_mdp_frame { 112 u32 width; 113 u32 height; 114 struct v4l2_rect crop; 115 unsigned long payload[VIDEO_MAX_PLANES]; 116 unsigned int pitch[VIDEO_MAX_PLANES]; 117 struct mtk_mdp_addr addr; 118 const struct mtk_mdp_fmt *fmt; 119 u8 alpha; 120}; 121 122/** 123 * struct mtk_mdp_variant - image processor variant information 124 * @pix_max: maximum limit of image size 125 * @pix_min: minimun limit of image size 126 * @pix_align: alignement of image 127 * @h_scale_up_max: maximum scale-up in horizontal 128 * @v_scale_up_max: maximum scale-up in vertical 129 * @h_scale_down_max: maximum scale-down in horizontal 130 * @v_scale_down_max: maximum scale-down in vertical 131 */ 132struct mtk_mdp_variant { 133 struct mtk_mdp_pix_limit *pix_max; 134 struct mtk_mdp_pix_limit *pix_min; 135 struct mtk_mdp_pix_align *pix_align; 136 u16 h_scale_up_max; 137 u16 v_scale_up_max; 138 u16 h_scale_down_max; 139 u16 v_scale_down_max; 140}; 141 142/** 143 * struct mtk_mdp_dev - abstraction for image processor entity 144 * @lock: the mutex protecting this data structure 145 * @vpulock: the mutex protecting the communication with VPU 146 * @pdev: pointer to the image processor platform device 147 * @variant: the IP variant information 148 * @id: image processor device index (0..MTK_MDP_MAX_DEVS) 149 * @comp: MDP function components 150 * @m2m_dev: v4l2 memory-to-memory device data 151 * @ctx_list: list of struct mtk_mdp_ctx 152 * @vdev: video device for image processor driver 153 * @v4l2_dev: V4L2 device to register video devices for. 154 * @job_wq: processor work queue 155 * @vpu_dev: VPU platform device 156 * @ctx_num: counter of active MTK MDP context 157 * @id_counter: An integer id given to the next opened context 158 * @wdt_wq: work queue for VPU watchdog 159 * @wdt_work: worker for VPU watchdog 160 */ 161struct mtk_mdp_dev { 162 struct mutex lock; 163 struct mutex vpulock; 164 struct platform_device *pdev; 165 struct mtk_mdp_variant *variant; 166 u16 id; 167 struct mtk_mdp_comp *comp[MTK_MDP_COMP_ID_MAX]; 168 struct v4l2_m2m_dev *m2m_dev; 169 struct list_head ctx_list; 170 struct video_device *vdev; 171 struct v4l2_device v4l2_dev; 172 struct workqueue_struct *job_wq; 173 struct platform_device *vpu_dev; 174 int ctx_num; 175 unsigned long id_counter; 176 struct workqueue_struct *wdt_wq; 177 struct work_struct wdt_work; 178}; 179 180/** 181 * mtk_mdp_ctx - the device context data 182 * @list: link to ctx_list of mtk_mdp_dev 183 * @s_frame: source frame properties 184 * @d_frame: destination frame properties 185 * @id: index of the context that this structure describes 186 * @flags: additional flags for image conversion 187 * @state: flags to keep track of user configuration 188 Protected by slock 189 * @rotation: rotates the image by specified angle 190 * @hflip: mirror the picture horizontally 191 * @vflip: mirror the picture vertically 192 * @mdp_dev: the image processor device this context applies to 193 * @m2m_ctx: memory-to-memory device context 194 * @fh: v4l2 file handle 195 * @ctrl_handler: v4l2 controls handler 196 * @ctrls image processor control set 197 * @ctrls_rdy: true if the control handler is initialized 198 * @colorspace: enum v4l2_colorspace; supplemental to pixelformat 199 * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding 200 * @xfer_func: enum v4l2_xfer_func, colorspace transfer function 201 * @quant: enum v4l2_quantization, colorspace quantization 202 * @vpu: VPU instance 203 * @slock: the mutex protecting mtp_mdp_ctx.state 204 * @work: worker for image processing 205 */ 206struct mtk_mdp_ctx { 207 struct list_head list; 208 struct mtk_mdp_frame s_frame; 209 struct mtk_mdp_frame d_frame; 210 u32 flags; 211 u32 state; 212 int id; 213 int rotation; 214 u32 hflip:1; 215 u32 vflip:1; 216 struct mtk_mdp_dev *mdp_dev; 217 struct v4l2_m2m_ctx *m2m_ctx; 218 struct v4l2_fh fh; 219 struct v4l2_ctrl_handler ctrl_handler; 220 struct mtk_mdp_ctrls ctrls; 221 bool ctrls_rdy; 222 enum v4l2_colorspace colorspace; 223 enum v4l2_ycbcr_encoding ycbcr_enc; 224 enum v4l2_xfer_func xfer_func; 225 enum v4l2_quantization quant; 226 227 struct mtk_mdp_vpu vpu; 228 struct mutex slock; 229 struct work_struct work; 230}; 231 232extern int mtk_mdp_dbg_level; 233 234#if defined(DEBUG) 235 236#define mtk_mdp_dbg(level, fmt, args...) \ 237 do { \ 238 if (mtk_mdp_dbg_level >= level) \ 239 pr_info("[MTK_MDP] level=%d %s(),%d: " fmt "\n", \ 240 level, __func__, __LINE__, ##args); \ 241 } while (0) 242 243#define mtk_mdp_err(fmt, args...) \ 244 pr_err("[MTK_MDP][ERROR] %s:%d: " fmt "\n", __func__, __LINE__, \ 245 ##args) 246 247 248#define mtk_mdp_dbg_enter() mtk_mdp_dbg(3, "+") 249#define mtk_mdp_dbg_leave() mtk_mdp_dbg(3, "-") 250 251#else 252 253#define mtk_mdp_dbg(level, fmt, args...) {} 254#define mtk_mdp_err(fmt, args...) 255#define mtk_mdp_dbg_enter() 256#define mtk_mdp_dbg_leave() 257 258#endif 259 260#endif /* __MTK_MDP_CORE_H__ */ 261