drivers/video/omap/omapfb.h

   1 /*
   2  * File: drivers/video/omap/omapfb.h
   3  *
   4  * Framebuffer driver for TI OMAP boards
   5  *
   6  * Copyright (C) 2004 Nokia Corporation
   7  * Author: Imre Deak <imre.deak@nokia.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by the
  11  * Free Software Foundation; either version 2 of the License, or (at your
  12  * option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  22  */
  23
  24 #ifndef __OMAPFB_H
  25 #define __OMAPFB_H
  26
  27 #include <linux/fb.h>
  28 #include <linux/mutex.h>
  29 #include <linux/omapfb.h>
  30
  31 #define OMAPFB_EVENT_READY      1
  32 #define OMAPFB_EVENT_DISABLED   2
  33
  34 #define OMAP_LCDC_INV_VSYNC             0x0001
  35 #define OMAP_LCDC_INV_HSYNC             0x0002
  36 #define OMAP_LCDC_INV_PIX_CLOCK         0x0004
  37 #define OMAP_LCDC_INV_OUTPUT_EN         0x0008
  38 #define OMAP_LCDC_HSVS_RISING_EDGE      0x0010
  39 #define OMAP_LCDC_HSVS_OPPOSITE         0x0020
  40
  41 #define OMAP_LCDC_SIGNAL_MASK           0x003f
  42
  43 #define OMAP_LCDC_PANEL_TFT             0x0100
  44
  45 #define OMAPFB_PLANE_XRES_MIN           8
  46 #define OMAPFB_PLANE_YRES_MIN           8
  47
  48 struct omapfb_device;
  49
  50 struct lcd_panel {
  51         const char      *name;
  52         int             config;         /* TFT/STN, signal inversion */
  53         int             bpp;            /* Pixel format in fb mem */
  54         int             data_lines;     /* Lines on LCD HW interface */
  55
  56         int             x_res, y_res;
  57         int             pixel_clock;    /* In kHz */
  58         int             hsw;            /* Horizontal synchronization
  59                                            pulse width */
  60         int             hfp;            /* Horizontal front porch */
  61         int             hbp;            /* Horizontal back porch */
  62         int             vsw;            /* Vertical synchronization
  63                                            pulse width */
  64         int             vfp;            /* Vertical front porch */
  65         int             vbp;            /* Vertical back porch */
  66         int             acb;            /* ac-bias pin frequency */
  67         int             pcd;            /* pixel clock divider.
  68                                            Obsolete use pixel_clock instead */
  69
  70         int             (*init)         (struct lcd_panel *panel,
  71                                          struct omapfb_device *fbdev);
  72         void            (*cleanup)      (struct lcd_panel *panel);
  73         int             (*enable)       (struct lcd_panel *panel);
  74         void            (*disable)      (struct lcd_panel *panel);
  75         unsigned long   (*get_caps)     (struct lcd_panel *panel);
  76         int             (*set_bklight_level)(struct lcd_panel *panel,
  77                                              unsigned int level);
  78         unsigned int    (*get_bklight_level)(struct lcd_panel *panel);
  79         unsigned int    (*get_bklight_max)  (struct lcd_panel *panel);
  80         int             (*run_test)     (struct lcd_panel *panel, int test_num);
  81 };
  82
  83 struct extif_timings {
  84         int cs_on_time;
  85         int cs_off_time;
  86         int we_on_time;
  87         int we_off_time;
  88         int re_on_time;
  89         int re_off_time;
  90         int we_cycle_time;
  91         int re_cycle_time;
  92         int cs_pulse_width;
  93         int access_time;
  94
  95         int clk_div;
  96
  97         u32 tim[5];             /* set by extif->convert_timings */
  98
  99         int converted;
 100 };
 101
 102 struct lcd_ctrl_extif {
 103         int  (*init)            (struct omapfb_device *fbdev);
 104         void (*cleanup)         (void);
 105         void (*get_clk_info)    (u32 *clk_period, u32 *max_clk_div);
 106         unsigned long (*get_max_tx_rate)(void);
 107         int  (*convert_timings) (struct extif_timings *timings);
 108         void (*set_timings)     (const struct extif_timings *timings);
 109         void (*set_bits_per_cycle)(int bpc);
 110         void (*write_command)   (const void *buf, unsigned int len);
 111         void (*read_data)       (void *buf, unsigned int len);
 112         void (*write_data)      (const void *buf, unsigned int len);
 113         void (*transfer_area)   (int width, int height,
 114                                  void (callback)(void *data), void *data);
 115         int  (*setup_tearsync)  (unsigned pin_cnt,
 116                                  unsigned hs_pulse_time, unsigned vs_pulse_time,
 117                                  int hs_pol_inv, int vs_pol_inv, int div);
 118         int  (*enable_tearsync) (int enable, unsigned line);
 119
 120         unsigned long           max_transmit_size;
 121 };
 122
 123 struct omapfb_notifier_block {
 124         struct notifier_block   nb;
 125         void                    *data;
 126         int                     plane_idx;
 127 };
 128
 129 typedef int (*omapfb_notifier_callback_t)(struct notifier_block *,
 130                                           unsigned long event,
 131                                           void *fbi);
 132
 133 struct lcd_ctrl {
 134         const char      *name;
 135         void            *data;
 136
 137         int             (*init)           (struct omapfb_device *fbdev,
 138                                            int ext_mode,
 139                                            struct omapfb_mem_desc *req_md);
 140         void            (*cleanup)        (void);
 141         void            (*bind_client)    (struct omapfb_notifier_block *nb);
 142         void            (*get_caps)       (int plane, struct omapfb_caps *caps);
 143         int             (*set_update_mode)(enum omapfb_update_mode mode);
 144         enum omapfb_update_mode (*get_update_mode)(void);
 145         int             (*setup_plane)    (int plane, int channel_out,
 146                                            unsigned long offset,
 147                                            int screen_width,
 148                                            int pos_x, int pos_y, int width,
 149                                            int height, int color_mode);
 150         int             (*set_rotate)     (int angle);
 151         int             (*setup_mem)      (int plane, size_t size,
 152                                            int mem_type, unsigned long *paddr);
 153         int             (*mmap)           (struct fb_info *info,
 154                                            struct vm_area_struct *vma);
 155         int             (*set_scale)      (int plane,
 156                                            int orig_width, int orig_height,
 157                                            int out_width, int out_height);
 158         int             (*enable_plane)   (int plane, int enable);
 159         int             (*update_window)  (struct fb_info *fbi,
 160                                            struct omapfb_update_window *win,
 161                                            void (*callback)(void *),
 162                                            void *callback_data);
 163         void            (*sync)           (void);
 164         void            (*suspend)        (void);
 165         void            (*resume)         (void);
 166         int             (*run_test)       (int test_num);
 167         int             (*setcolreg)      (u_int regno, u16 red, u16 green,
 168                                            u16 blue, u16 transp,
 169                                            int update_hw_mem);
 170         int             (*set_color_key)  (struct omapfb_color_key *ck);
 171         int             (*get_color_key)  (struct omapfb_color_key *ck);
 172 };
 173
 174 enum omapfb_state {
 175         OMAPFB_DISABLED         = 0,
 176         OMAPFB_SUSPENDED        = 99,
 177         OMAPFB_ACTIVE           = 100
 178 };
 179
 180 struct omapfb_plane_struct {
 181         int                             idx;
 182         struct omapfb_plane_info        info;
 183         enum omapfb_color_format        color_mode;
 184         struct omapfb_device            *fbdev;
 185 };
 186
 187 struct omapfb_device {
 188         int                     state;
 189         int                     ext_lcdc;               /* Using external
 190                                                            LCD controller */
 191         struct mutex            rqueue_mutex;
 192
 193         int                     palette_size;
 194         u32                     pseudo_palette[17];
 195
 196         struct lcd_panel        *panel;                 /* LCD panel */
 197         const struct lcd_ctrl   *ctrl;                  /* LCD controller */
 198         const struct lcd_ctrl   *int_ctrl;              /* internal LCD ctrl */
 199         struct lcd_ctrl_extif   *ext_if;                /* LCD ctrl external
 200                                                            interface */
 201         struct device           *dev;
 202         struct fb_var_screeninfo        new_var;        /* for mode changes */
 203
 204         struct omapfb_mem_desc          mem_desc;
 205         struct fb_info                  *fb_info[OMAPFB_PLANE_NUM];
 206
 207         struct platform_device  *dssdev;        /* dummy dev for clocks */
 208 };
 209
 210 #ifdef CONFIG_ARCH_OMAP1
 211 extern struct lcd_ctrl omap1_lcd_ctrl;
 212 #else
 213 extern struct lcd_ctrl omap2_disp_ctrl;
 214 #endif
 215
 216 extern void omapfb_register_panel(struct lcd_panel *panel);
 217 extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval);
 218 extern void omapfb_notify_clients(struct omapfb_device *fbdev,
 219                                   unsigned long event);
 220 extern int  omapfb_register_client(struct omapfb_notifier_block *nb,
 221                                    omapfb_notifier_callback_t callback,
 222                                    void *callback_data);
 223 extern int  omapfb_unregister_client(struct omapfb_notifier_block *nb);
 224 extern int  omapfb_update_window_async(struct fb_info *fbi,
 225                                        struct omapfb_update_window *win,
 226                                        void (*callback)(void *),
 227                                        void *callback_data);
 228
 229 #endif /* __OMAPFB_H */