linux/drivers/video/omap/omapfb.h
<<
>>
Prefs
   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
  48struct omapfb_device;
  49
  50struct 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
  83struct 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
 102struct 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
 123struct omapfb_notifier_block {
 124        struct notifier_block   nb;
 125        void                    *data;
 126        int                     plane_idx;
 127};
 128
 129typedef int (*omapfb_notifier_callback_t)(struct notifier_block *,
 130                                          unsigned long event,
 131                                          void *fbi);
 132
 133struct 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
 174enum omapfb_state {
 175        OMAPFB_DISABLED         = 0,
 176        OMAPFB_SUSPENDED        = 99,
 177        OMAPFB_ACTIVE           = 100
 178};
 179
 180struct 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
 187struct 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
 211extern struct lcd_ctrl omap1_lcd_ctrl;
 212#else
 213extern struct lcd_ctrl omap2_disp_ctrl;
 214#endif
 215
 216extern void omapfb_register_panel(struct lcd_panel *panel);
 217extern void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval);
 218extern void omapfb_notify_clients(struct omapfb_device *fbdev,
 219                                  unsigned long event);
 220extern int  omapfb_register_client(struct omapfb_notifier_block *nb,
 221                                   omapfb_notifier_callback_t callback,
 222                                   void *callback_data);
 223extern int  omapfb_unregister_client(struct omapfb_notifier_block *nb);
 224extern 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 */
 230