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[kernel/linux-2.6.36.git] / 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 */