drivers/video/fbdev/sh_mobile_lcdcfb.h

   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 */
  11 enum { 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
  18 struct backlight_device;
  19 struct fb_info;
  20 struct module;
  21 struct sh_mobile_lcdc_chan;
  22 struct sh_mobile_lcdc_entity;
  23 struct sh_mobile_lcdc_format_info;
  24 struct sh_mobile_lcdc_priv;
  25
  26 #define SH_MOBILE_LCDC_DISPLAY_DISCONNECTED     0
  27 #define SH_MOBILE_LCDC_DISPLAY_CONNECTED        1
  28
  29 struct 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
  35 enum 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
  41 struct 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  */
  56 struct 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         void *cache;
  65
  66         struct mutex open_lock;         /* protects the use counter */
  67         int use_count;
  68
  69         void *fb_mem;
  70         unsigned long fb_size;
  71
  72         dma_addr_t dma_handle;
  73         unsigned long pan_y_offset;
  74
  75         unsigned long frame_end;
  76         wait_queue_head_t frame_end_wait;
  77         struct completion vsync_completion;
  78
  79         const struct sh_mobile_lcdc_format_info *format;
  80         u32 colorspace;
  81         unsigned int xres;
  82         unsigned int xres_virtual;
  83         unsigned int yres;
  84         unsigned int yres_virtual;
  85         unsigned int pitch;
  86
  87         unsigned long base_addr_y;
  88         unsigned long base_addr_c;
  89         unsigned int line_size;
  90
  91         int (*notify)(struct sh_mobile_lcdc_chan *ch,
  92                       enum sh_mobile_lcdc_entity_event event,
  93                       const struct fb_videomode *mode,
  94                       const struct fb_monspecs *monspec);
  95
  96         /* Backlight */
  97         struct backlight_device *bl;
  98         unsigned int bl_brightness;
  99
 100         /* FB */
 101         struct fb_info *info;
 102         u32 pseudo_palette[PALETTE_NR];
 103         struct {
 104                 unsigned int width;
 105                 unsigned int height;
 106                 struct fb_videomode mode;
 107         } display;
 108         struct fb_deferred_io defio;
 109         struct scatterlist *sglist;
 110         int blank_status;
 111 };
 112
 113 #endif