1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef SH_MOBILE_LCDCFB_H
3#define SH_MOBILE_LCDCFB_H
4
5#include <linux/completion.h>
6#include <linux/fb.h>
7#include <linux/mutex.h>
8#include <linux/wait.h>
9
10/* per-channel registers */
11enum { LDDCKPAT1R, LDDCKPAT2R, LDMT1R, LDMT2R, LDMT3R, LDDFR, LDSM1R,
12       LDSM2R, LDSA1R, LDSA2R, LDMLSR, LDHCNR, LDHSYNR, LDVLNR, LDVSYNR, LDPMR,
13       LDHAJR,
14       NR_CH_REGS };
15
16#define PALETTE_NR 16
17
18struct backlight_device;
19struct fb_info;
20struct module;
21struct sh_mobile_lcdc_chan;
22struct sh_mobile_lcdc_entity;
23struct sh_mobile_lcdc_format_info;
24struct sh_mobile_lcdc_priv;
25
26#define SH_MOBILE_LCDC_DISPLAY_DISCONNECTED	0
27#define SH_MOBILE_LCDC_DISPLAY_CONNECTED	1
28
29struct sh_mobile_lcdc_entity_ops {
30	/* Display */
31	int (*display_on)(struct sh_mobile_lcdc_entity *entity);
32	void (*display_off)(struct sh_mobile_lcdc_entity *entity);
33};
34
35enum sh_mobile_lcdc_entity_event {
36	SH_MOBILE_LCDC_EVENT_DISPLAY_CONNECT,
37	SH_MOBILE_LCDC_EVENT_DISPLAY_DISCONNECT,
38	SH_MOBILE_LCDC_EVENT_DISPLAY_MODE,
39};
40
41struct sh_mobile_lcdc_entity {
42	struct module *owner;
43	const struct sh_mobile_lcdc_entity_ops *ops;
44	struct sh_mobile_lcdc_chan *lcdc;
45	struct fb_videomode def_mode;
46};
47
48/*
49 * struct sh_mobile_lcdc_chan - LCDC display channel
50 *
51 * @pan_y_offset: Panning linear offset in bytes (luma component)
52 * @base_addr_y: Frame buffer viewport base address (luma component)
53 * @base_addr_c: Frame buffer viewport base address (chroma component)
54 * @pitch: Frame buffer line pitch
55 */
56struct sh_mobile_lcdc_chan {
57	struct sh_mobile_lcdc_priv *lcdc;
58	struct sh_mobile_lcdc_entity *tx_dev;
59	const struct sh_mobile_lcdc_chan_cfg *cfg;
60
61	unsigned long *reg_offs;
62	unsigned long ldmt1r_value;
63	unsigned long enabled; /* ME and SE in LDCNT2R */
64
65	struct mutex open_lock;		/* protects the use counter */
66	int use_count;
67
68	void *fb_mem;
69	unsigned long fb_size;
70
71	dma_addr_t dma_handle;
72	unsigned long pan_y_offset;
73
74	unsigned long frame_end;
75	wait_queue_head_t frame_end_wait;
76	struct completion vsync_completion;
77
78	const struct sh_mobile_lcdc_format_info *format;
79	u32 colorspace;
80	unsigned int xres;
81	unsigned int xres_virtual;
82	unsigned int yres;
83	unsigned int yres_virtual;
84	unsigned int pitch;
85
86	unsigned long base_addr_y;
87	unsigned long base_addr_c;
88	unsigned int line_size;
89
90	/* Backlight */
91	struct backlight_device *bl;
92	unsigned int bl_brightness;
93
94	/* FB */
95	struct fb_info *info;
96	u32 pseudo_palette[PALETTE_NR];
97	struct {
98		unsigned int width;
99		unsigned int height;
100		struct fb_videomode mode;
101	} display;
102	struct fb_deferred_io defio;
103	struct scatterlist *sglist;
104	int blank_status;
105};
106
107#endif
108