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