mtk-mdp3-core.h

  1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * Copyright (c) 2022 MediaTek Inc.
  4 * Author: Ping-Hsun Wu <ping-hsun.wu@mediatek.com>
  5 */
  6
  7#ifndef __MTK_MDP3_CORE_H__
  8#define __MTK_MDP3_CORE_H__
  9
 10#include <media/v4l2-device.h>
 11#include <media/v4l2-mem2mem.h>
 12#include <linux/soc/mediatek/mtk-mmsys.h>
 13#include <linux/soc/mediatek/mtk-mutex.h>
 14#include "mtk-mdp3-comp.h"
 15#include "mtk-mdp3-vpu.h"
 16
 17#define MDP_MODULE_NAME		"mtk-mdp3"
 18#define MDP_DEVICE_NAME		"MediaTek MDP3"
 19#define MDP_PHANDLE_NAME	"mediatek,mdp3"
 20
 21enum mdp_infra_id {
 22	/*
 23	 * Due to the sequential nature of function "mdp_mm_subsys_deploy",
 24	 * adding new enum. necessitates careful consideration.
 25	 */
 26	MDP_INFRA_MMSYS,
 27	MDP_INFRA_MMSYS2,
 28	MDP_INFRA_MUTEX,
 29	MDP_INFRA_MUTEX2,
 30	MDP_INFRA_SCP,
 31	MDP_INFRA_MAX
 32};
 33
 34enum mdp_mm_subsys_id {
 35	MDP_MM_SUBSYS_0,
 36	MDP_MM_SUBSYS_1,
 37	MDP_MM_SUBSYS_MAX,
 38};
 39
 40enum mdp_buffer_usage {
 41	MDP_BUFFER_USAGE_HW_READ,
 42	MDP_BUFFER_USAGE_MDP,
 43	MDP_BUFFER_USAGE_MDP2,
 44	MDP_BUFFER_USAGE_ISP,
 45	MDP_BUFFER_USAGE_WPE,
 46};
 47
 48struct mdp_platform_config {
 49	bool	rdma_support_10bit;
 50	bool	rdma_rsz1_sram_sharing;
 51	bool	rdma_upsample_repeat_only;
 52	bool	rdma_esl_setting;
 53	u32	rdma_event_num;
 54	bool	rsz_disable_dcm_small_sample;
 55	bool	rsz_etc_control;
 56	bool	wrot_filter_constraint;
 57	bool	wrot_support_10bit;
 58	u32	wrot_event_num;
 59	u32	tdshp_hist_num;
 60	bool	tdshp_constrain;
 61	bool	tdshp_contour;
 62};
 63
 64/* indicate which mutex is used by each pipepline */
 65enum mdp_pipe_id {
 66	MDP_PIPE_WPEI,
 67	MDP_PIPE_WPEI2,
 68	MDP_PIPE_IMGI,
 69	MDP_PIPE_RDMA0,
 70	MDP_PIPE_RDMA1,
 71	MDP_PIPE_RDMA2,
 72	MDP_PIPE_RDMA3,
 73	MDP_PIPE_SPLIT,
 74	MDP_PIPE_SPLIT2,
 75	MDP_PIPE_VPP0_SOUT,
 76	MDP_PIPE_VPP1_SOUT,
 77	MDP_PIPE_MAX
 78};
 79
 80/* MDP parallel pipe control */
 81enum {
 82	MDP_PP_USED_1 = 1,
 83	MDP_PP_USED_2 = 2,
 84};
 85
 86#define MDP_PP_MAX MDP_PP_USED_2
 87
 88struct mtk_mdp_driver_data {
 89	const int mdp_plat_id;
 90	const resource_size_t mdp_con_res;
 91	const struct of_device_id *mdp_probe_infra;
 92	const struct mdp_platform_config *mdp_cfg;
 93	const u32 *mdp_mutex_table_idx;
 94	const struct mdp_comp_data *comp_data;
 95	unsigned int comp_data_len;
 96	const struct of_device_id *mdp_sub_comp_dt_ids;
 97	const struct mdp_format *format;
 98	unsigned int format_len;
 99	const struct mdp_limit *def_limit;
100	const struct mdp_pipe_info *pipe_info;
101	unsigned int pipe_info_len;
102	const struct v4l2_rect *pp_criteria;
103	const u8 pp_used;
104};
105
106struct mdp_mm_subsys {
107	struct device *mmsys;
108	struct device *mutex;
109	struct mtk_mutex *mdp_mutex[MDP_PIPE_MAX];
110};
111
112struct mdp_dev {
113	struct platform_device			*pdev;
114	struct mdp_mm_subsys			mm_subsys[MDP_MM_SUBSYS_MAX];
115	struct mdp_comp				*comp[MDP_MAX_COMP_COUNT];
116	const struct mtk_mdp_driver_data	*mdp_data;
117
118	struct workqueue_struct			*job_wq;
119	struct workqueue_struct			*clock_wq;
120	struct mdp_vpu_dev			vpu;
121	struct mtk_scp				*scp;
122	struct rproc				*rproc_handle;
123	/* synchronization protect for accessing vpu working buffer info */
124	struct mutex				vpu_lock;
125	s32					vpu_count;
126	u32					id_count;
127	struct ida				mdp_ida;
128	struct cmdq_client			*cmdq_clt[MDP_PP_MAX];
129	u8					cmdq_shift_pa[MDP_PP_MAX];
130	wait_queue_head_t			callback_wq;
131
132	struct v4l2_device			v4l2_dev;
133	struct video_device			*m2m_vdev;
134	struct v4l2_m2m_dev			*m2m_dev;
135	/* synchronization protect for m2m device operation */
136	struct mutex				m2m_lock;
137	atomic_t				suspended;
138	refcount_t				job_count;
139};
140
141struct mdp_pipe_info {
142	enum mdp_pipe_id pipe_id;
143	enum mdp_mm_subsys_id sub_id;
144	u32 mutex_id;
145};
146
147int mdp_vpu_get_locked(struct mdp_dev *mdp);
148void mdp_vpu_put_locked(struct mdp_dev *mdp);
149int mdp_vpu_register(struct mdp_dev *mdp);
150void mdp_vpu_unregister(struct mdp_dev *mdp);
151void mdp_video_device_release(struct video_device *vdev);
152
153#endif  /* __MTK_MDP3_CORE_H__ */