CRED: Wrap task credential accesses in the JFS filesystem
[linux-2.6.git] / drivers / video / sa1100fb.h
1 /*
2  * linux/drivers/video/sa1100fb.h
3  *    -- StrongARM 1100 LCD Controller Frame Buffer Device
4  *
5  *  Copyright (C) 1999 Eric A. Thomas
6  *   Based on acornfb.c Copyright (C) Russell King.
7  *  
8  * This file is subject to the terms and conditions of the GNU General Public
9  * License.  See the file COPYING in the main directory of this archive
10  * for more details.
11  */
12
13 /*
14  * These are the bitfields for each
15  * display depth that we support.
16  */
17 struct sa1100fb_rgb {
18         struct fb_bitfield      red;
19         struct fb_bitfield      green;
20         struct fb_bitfield      blue;
21         struct fb_bitfield      transp;
22 };
23
24 /*
25  * This structure describes the machine which we are running on.
26  */
27 struct sa1100fb_mach_info {
28         u_long          pixclock;
29
30         u_short         xres;
31         u_short         yres;
32
33         u_char          bpp;
34         u_char          hsync_len;
35         u_char          left_margin;
36         u_char          right_margin;
37
38         u_char          vsync_len;
39         u_char          upper_margin;
40         u_char          lower_margin;
41         u_char          sync;
42
43         u_int           cmap_greyscale:1,
44                         cmap_inverse:1,
45                         cmap_static:1,
46                         unused:29;
47
48         u_int           lccr0;
49         u_int           lccr3;
50 };
51
52 /* Shadows for LCD controller registers */
53 struct sa1100fb_lcd_reg {
54         unsigned long lccr0;
55         unsigned long lccr1;
56         unsigned long lccr2;
57         unsigned long lccr3;
58 };
59
60 #define RGB_8   (0)
61 #define RGB_16  (1)
62 #define NR_RGB  2
63
64 struct sa1100fb_info {
65         struct fb_info          fb;
66         struct device           *dev;
67         struct sa1100fb_rgb     *rgb[NR_RGB];
68
69         u_int                   max_bpp;
70         u_int                   max_xres;
71         u_int                   max_yres;
72
73         /*
74          * These are the addresses we mapped
75          * the framebuffer memory region to.
76          */
77         dma_addr_t              map_dma;
78         u_char *                map_cpu;
79         u_int                   map_size;
80
81         u_char *                screen_cpu;
82         dma_addr_t              screen_dma;
83         u16 *                   palette_cpu;
84         dma_addr_t              palette_dma;
85         u_int                   palette_size;
86
87         dma_addr_t              dbar1;
88         dma_addr_t              dbar2;
89
90         u_int                   lccr0;
91         u_int                   lccr3;
92         u_int                   cmap_inverse:1,
93                                 cmap_static:1,
94                                 unused:30;
95
96         u_int                   reg_lccr0;
97         u_int                   reg_lccr1;
98         u_int                   reg_lccr2;
99         u_int                   reg_lccr3;
100
101         volatile u_char         state;
102         volatile u_char         task_state;
103         struct mutex            ctrlr_lock;
104         wait_queue_head_t       ctrlr_wait;
105         struct work_struct      task;
106
107 #ifdef CONFIG_CPU_FREQ
108         struct notifier_block   freq_transition;
109         struct notifier_block   freq_policy;
110 #endif
111 };
112
113 #define TO_INF(ptr,member)      container_of(ptr,struct sa1100fb_info,member)
114
115 #define SA1100_PALETTE_MODE_VAL(bpp)    (((bpp) & 0x018) << 9)
116
117 /*
118  * These are the actions for set_ctrlr_state
119  */
120 #define C_DISABLE               (0)
121 #define C_ENABLE                (1)
122 #define C_DISABLE_CLKCHANGE     (2)
123 #define C_ENABLE_CLKCHANGE      (3)
124 #define C_REENABLE              (4)
125 #define C_DISABLE_PM            (5)
126 #define C_ENABLE_PM             (6)
127 #define C_STARTUP               (7)
128
129 #define SA1100_NAME     "SA1100"
130
131 /*
132  *  Debug macros 
133  */
134 #if DEBUG
135 #  define DPRINTK(fmt, args...) printk("%s: " fmt, __func__ , ## args)
136 #else
137 #  define DPRINTK(fmt, args...)
138 #endif
139
140 /*
141  * Minimum X and Y resolutions
142  */
143 #define MIN_XRES        64
144 #define MIN_YRES        64
145