linux/drivers/video/fbdev/sh_mobile_lcdcfb.h
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   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
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