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

source code of linux/drivers/video/fbdev/sh_mobile_lcdcfb.h