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   1 /*
   2  * File: include/asm-arm/arch-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 /* IOCTL commands. */
  28
  29 #define OMAP_IOW(num, dtype)    _IOW('O', num, dtype)
  30 #define OMAP_IOR(num, dtype)    _IOR('O', num, dtype)
  31 #define OMAP_IOWR(num, dtype)   _IOWR('O', num, dtype)
  32 #define OMAP_IO(num)            _IO('O', num)
  33
  34 #define OMAPFB_MIRROR           OMAP_IOW(31, int)
  35 #define OMAPFB_SYNC_GFX         OMAP_IO(37)
  36 #define OMAPFB_VSYNC            OMAP_IO(38)
  37 #define OMAPFB_SET_UPDATE_MODE  OMAP_IOW(40, int)
  38 #define OMAPFB_UPDATE_WINDOW_OLD OMAP_IOW(41, struct omapfb_update_window_old)
  39 #define OMAPFB_GET_CAPS         OMAP_IOR(42, unsigned long)
  40 #define OMAPFB_GET_UPDATE_MODE  OMAP_IOW(43, int)
  41 #define OMAPFB_LCD_TEST         OMAP_IOW(45, int)
  42 #define OMAPFB_CTRL_TEST        OMAP_IOW(46, int)
  43 #define OMAPFB_UPDATE_WINDOW    OMAP_IOW(47, struct omapfb_update_window)
  44 #define OMAPFB_SETUP_PLANE      OMAP_IOW(48, struct omapfb_setup_plane)
  45 #define OMAPFB_ENABLE_PLANE     OMAP_IOW(49, struct omapfb_enable_plane)
  46 #define OMAPFB_SET_COLOR_KEY    OMAP_IOW(50, struct omapfb_color_key)
  47
  48 #define OMAPFB_CAPS_GENERIC_MASK        0x00000fff
  49 #define OMAPFB_CAPS_LCDC_MASK           0x00fff000
  50 #define OMAPFB_CAPS_PANEL_MASK          0xff000000
  51
  52 #define OMAPFB_CAPS_MANUAL_UPDATE       0x00001000
  53 #define OMAPFB_CAPS_SET_BACKLIGHT       0x01000000
  54
  55 /* Values from DSP must map to lower 16-bits */
  56 #define OMAPFB_FORMAT_MASK         0x00ff
  57 #define OMAPFB_FORMAT_FLAG_DOUBLE  0x0100
  58
  59 enum omapfb_color_format {
  60         OMAPFB_COLOR_RGB565 = 0,
  61         OMAPFB_COLOR_YUV422,
  62         OMAPFB_COLOR_YUV420,
  63         OMAPFB_COLOR_CLUT_8BPP,
  64         OMAPFB_COLOR_CLUT_4BPP,
  65         OMAPFB_COLOR_CLUT_2BPP,
  66         OMAPFB_COLOR_CLUT_1BPP,
  67 };
  68
  69 struct omapfb_update_window {
  70         __u32 x, y;
  71         __u32 width, height;
  72         __u32 format;
  73 };
  74
  75 struct omapfb_update_window_old {
  76         __u32 x, y;
  77         __u32 width, height;
  78 };
  79
  80 enum omapfb_plane {
  81         OMAPFB_PLANE_GFX = 0,
  82         OMAPFB_PLANE_VID1,
  83         OMAPFB_PLANE_VID2,
  84 };
  85
  86 enum omapfb_channel_out {
  87         OMAPFB_CHANNEL_OUT_LCD = 0,
  88         OMAPFB_CHANNEL_OUT_DIGIT,
  89 };
  90
  91 struct omapfb_setup_plane {
  92         __u8  plane;
  93         __u8  channel_out;
  94         __u32 offset;
  95         __u32 pos_x, pos_y;
  96         __u32 width, height;
  97         __u32 color_mode;
  98 };
  99
 100 struct omapfb_enable_plane {
 101         __u8  plane;
 102         __u8  enable;
 103 };
 104
 105 enum omapfb_color_key_type {
 106         OMAPFB_COLOR_KEY_DISABLED = 0,
 107         OMAPFB_COLOR_KEY_GFX_DST,
 108         OMAPFB_COLOR_KEY_VID_SRC,
 109 };
 110
 111 struct omapfb_color_key {
 112         __u8  channel_out;
 113         __u32 background;
 114         __u32 trans_key;
 115         __u8  key_type;
 116 };
 117
 118 enum omapfb_update_mode {
 119         OMAPFB_UPDATE_DISABLED = 0,
 120         OMAPFB_AUTO_UPDATE,
 121         OMAPFB_MANUAL_UPDATE
 122 };
 123
 124 #ifdef __KERNEL__
 125
 126 #include <linux/completion.h>
 127 #include <linux/interrupt.h>
 128 #include <linux/fb.h>
 129 #include <linux/mutex.h>
 130
 131 #include <asm/arch/board.h>
 132
 133 #define OMAP_LCDC_INV_VSYNC             0x0001
 134 #define OMAP_LCDC_INV_HSYNC             0x0002
 135 #define OMAP_LCDC_INV_PIX_CLOCK         0x0004
 136 #define OMAP_LCDC_INV_OUTPUT_EN         0x0008
 137 #define OMAP_LCDC_HSVS_RISING_EDGE      0x0010
 138 #define OMAP_LCDC_HSVS_OPPOSITE         0x0020
 139
 140 #define OMAP_LCDC_SIGNAL_MASK           0x003f
 141
 142 #define OMAP_LCDC_PANEL_TFT             0x0100
 143
 144 #ifdef CONFIG_ARCH_OMAP1
 145 #define OMAPFB_PLANE_NUM                1
 146 #else
 147 #define OMAPFB_PLANE_NUM                3
 148 #endif
 149
 150 struct omapfb_device;
 151
 152 struct lcd_panel {
 153         const char      *name;
 154         int             config;         /* TFT/STN, signal inversion */
 155         int             bpp;            /* Pixel format in fb mem */
 156         int             data_lines;     /* Lines on LCD HW interface */
 157
 158         int             x_res, y_res;
 159         int             pixel_clock;    /* In kHz */
 160         int             hsw;            /* Horizontal synchronization
 161                                            pulse width */
 162         int             hfp;            /* Horizontal front porch */
 163         int             hbp;            /* Horizontal back porch */
 164         int             vsw;            /* Vertical synchronization
 165                                            pulse width */
 166         int             vfp;            /* Vertical front porch */
 167         int             vbp;            /* Vertical back porch */
 168         int             acb;            /* ac-bias pin frequency */
 169         int             pcd;            /* pixel clock divider.
 170                                            Obsolete use pixel_clock instead */
 171
 172         int             (*init)         (struct omapfb_device *fbdev);
 173         void            (*cleanup)      (void);
 174         int             (*enable)       (void);
 175         void            (*disable)      (void);
 176         unsigned long   (*get_caps)     (void);
 177         int             (*set_bklight_level)(unsigned int level);
 178         unsigned int    (*get_bklight_level)(void);
 179         unsigned int    (*get_bklight_max)  (void);
 180         int             (*run_test)     (int test_num);
 181 };
 182
 183 struct omapfb_device;
 184
 185 struct extif_timings {
 186         int cs_on_time;
 187         int cs_off_time;
 188         int we_on_time;
 189         int we_off_time;
 190         int re_on_time;
 191         int re_off_time;
 192         int we_cycle_time;
 193         int re_cycle_time;
 194         int cs_pulse_width;
 195         int access_time;
 196
 197         int clk_div;
 198
 199         u32 tim[5];             /* set by extif->convert_timings */
 200
 201         int converted;
 202 };
 203
 204 struct lcd_ctrl_extif {
 205         int  (*init)            (void);
 206         void (*cleanup)         (void);
 207         void (*get_clk_info)    (u32 *clk_period, u32 *max_clk_div);
 208         int  (*convert_timings) (struct extif_timings *timings);
 209         void (*set_timings)     (const struct extif_timings *timings);
 210         void (*set_bits_per_cycle)(int bpc);
 211         void (*write_command)   (const void *buf, unsigned int len);
 212         void (*read_data)       (void *buf, unsigned int len);
 213         void (*write_data)      (const void *buf, unsigned int len);
 214         void (*transfer_area)   (int width, int height,
 215                                  void (callback)(void * data), void *data);
 216         unsigned long           max_transmit_size;
 217 };
 218
 219 struct omapfb_notifier_block {
 220         struct notifier_block   nb;
 221         void                    *data;
 222 };
 223
 224 typedef int (*omapfb_notifier_callback_t)(struct omapfb_notifier_block *,
 225                                            unsigned long event,
 226                                            struct omapfb_device *fbdev);
 227
 228 struct lcd_ctrl {
 229         const char      *name;
 230         void            *data;
 231
 232         int             (*init)           (struct omapfb_device *fbdev,
 233                                            int ext_mode, int req_vram_size);
 234         void            (*cleanup)        (void);
 235         void            (*bind_client)    (struct omapfb_notifier_block *nb);
 236         void            (*get_vram_layout)(unsigned long *size,
 237                                            void **virt_base,
 238                                            dma_addr_t *phys_base);
 239         int             (*mmap)           (struct vm_area_struct *vma);
 240         unsigned long   (*get_caps)       (void);
 241         int             (*set_update_mode)(enum omapfb_update_mode mode);
 242         enum omapfb_update_mode (*get_update_mode)(void);
 243         int             (*setup_plane)    (int plane, int channel_out,
 244                                            unsigned long offset,
 245                                            int screen_width,
 246                                            int pos_x, int pos_y, int width,
 247                                            int height, int color_mode);
 248         int             (*enable_plane)   (int plane, int enable);
 249         int             (*update_window)  (struct omapfb_update_window *win,
 250                                            void (*callback)(void *),
 251                                            void *callback_data);
 252         void            (*sync)           (void);
 253         void            (*suspend)        (void);
 254         void            (*resume)         (void);
 255         int             (*run_test)       (int test_num);
 256         int             (*setcolreg)      (u_int regno, u16 red, u16 green,
 257                                            u16 blue, u16 transp,
 258                                            int update_hw_mem);
 259         int             (*set_color_key)  (struct omapfb_color_key *ck);
 260
 261 };
 262
 263 enum omapfb_state {
 264         OMAPFB_DISABLED = 0,
 265         OMAPFB_SUSPENDED= 99,
 266         OMAPFB_ACTIVE   = 100
 267 };
 268
 269 struct omapfb_device {
 270         int                     state;
 271         int                     ext_lcdc;               /* Using external
 272                                                            LCD controller */
 273         struct mutex            rqueue_mutex;
 274
 275         void                    *vram_virt_base;
 276         dma_addr_t              vram_phys_base;
 277         unsigned long           vram_size;
 278
 279         int                     color_mode;
 280         int                     palette_size;
 281         int                     mirror;
 282         u32                     pseudo_palette[17];
 283
 284         struct lcd_panel        *panel;                 /* LCD panel */
 285         struct lcd_ctrl         *ctrl;                  /* LCD controller */
 286         struct lcd_ctrl         *int_ctrl;              /* internal LCD ctrl */
 287         struct lcd_ctrl_extif   *ext_if;                /* LCD ctrl external
 288                                                            interface */
 289         struct fb_info          *fb_info;
 290
 291         struct device           *dev;
 292 };
 293
 294 struct omapfb_platform_data {
 295         struct omap_lcd_config   lcd;
 296         struct omap_fbmem_config fbmem;
 297 };
 298
 299 #define OMAPFB_EVENT_READY      1
 300 #define OMAPFB_EVENT_DISABLED   2
 301
 302 #ifdef CONFIG_ARCH_OMAP1
 303 extern struct lcd_ctrl omap1_lcd_ctrl;
 304 #else
 305 extern struct lcd_ctrl omap2_disp_ctrl;
 306 #endif
 307
 308 extern void omapfb_register_panel(struct lcd_panel *panel);
 309 extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval);
 310 extern void omapfb_notify_clients(struct omapfb_device *fbdev,
 311                                   unsigned long event);
 312 extern int  omapfb_register_client(struct omapfb_notifier_block *nb,
 313                                     omapfb_notifier_callback_t callback,
 314                                     void *callback_data);
 315 extern int  omapfb_unregister_client(struct omapfb_notifier_block *nb);
 316 extern int  omapfb_update_window_async(struct omapfb_update_window *win,
 317                                         void (*callback)(void *),
 318                                         void *callback_data);
 319
 320 /* in arch/arm/plat-omap/devices.c */
 321 extern void omapfb_reserve_mem(void);
 322
 323 #endif /* __KERNEL__ */
 324
 325 #endif /* __OMAPFB_H */