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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [video/] [bt455.h] - Blame information for rev 62

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/*
 *      linux/drivers/video/bt455.h
 *
 *      Copyright 2003  Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
 *
 *      This file is subject to the terms and conditions of the GNU General
 *      Public License. See the file COPYING in the main directory of this
 *      archive for more details.
 */
#include <linux/types.h>
#include <asm/system.h>
 
/*
 * Bt455 byte-wide registers, 32-bit aligned.
 */
struct bt455_regs {
        volatile u8 addr_cmap;
        u8 pad0[3];
        volatile u8 addr_cmap_data;
        u8 pad1[3];
        volatile u8 addr_clr;
        u8 pad2[3];
        volatile u8 addr_ovly;
        u8 pad3[3];
};
 
static inline void bt455_select_reg(struct bt455_regs *regs, int ir)
{
        mb();
        regs->addr_cmap = ir & 0x0f;
}
 
/*
 * Read/write to a Bt455 color map register.
 */
static inline void bt455_read_cmap_entry(struct bt455_regs *regs, int cr,
                                         u8* red, u8* green, u8* blue)
{
        bt455_select_reg(regs, cr);
        mb();
        *red = regs->addr_cmap_data & 0x0f;
        rmb();
        *green = regs->addr_cmap_data & 0x0f;
        rmb();
        *blue = regs->addr_cmap_data & 0x0f;
}
 
static inline void bt455_write_cmap_entry(struct bt455_regs *regs, int cr,
                                          u8 red, u8 green, u8 blue)
{
        bt455_select_reg(regs, cr);
        wmb();
        regs->addr_cmap_data = red & 0x0f;
        wmb();
        regs->addr_cmap_data = green & 0x0f;
        wmb();
        regs->addr_cmap_data = blue & 0x0f;
}
 
static inline void bt455_write_ovly_entry(struct bt455_regs *regs, int cr,
                                          u8 red, u8 green, u8 blue)
{
        bt455_select_reg(regs, cr);
        wmb();
        regs->addr_ovly = red & 0x0f;
        wmb();
        regs->addr_ovly = green & 0x0f;
        wmb();
        regs->addr_ovly = blue & 0x0f;
}
 
static inline void bt455_set_cursor(struct bt455_regs *regs)
{
        mb();
        regs->addr_ovly = 0x0f;
        wmb();
        regs->addr_ovly = 0x0f;
        wmb();
        regs->addr_ovly = 0x0f;
}
 
static inline void bt455_erase_cursor(struct bt455_regs *regs)
{
        /* bt455_write_cmap_entry(regs, 8, 0x00, 0x00, 0x00); */
        /* bt455_write_cmap_entry(regs, 9, 0x00, 0x00, 0x00); */
        bt455_write_ovly_entry(regs, 8, 0x03, 0x03, 0x03);
        bt455_write_ovly_entry(regs, 9, 0x07, 0x07, 0x07);
 
        wmb();
        regs->addr_ovly = 0x09;
        wmb();
        regs->addr_ovly = 0x09;
        wmb();
        regs->addr_ovly = 0x09;
}

Line No.	Rev	Author	Line
1	62	marcus.erl	`/*`
2			`* linux/drivers/video/bt455.h`
3			`*`
4			`* Copyright 2003 Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>`
5			`*`
6			`* This file is subject to the terms and conditions of the GNU General`
7			`* Public License. See the file COPYING in the main directory of this`
8			`* archive for more details.`
9			`*/`
10			`#include <linux/types.h>`
11			`#include <asm/system.h>`
12
13			`/*`
14			`* Bt455 byte-wide registers, 32-bit aligned.`
15			`*/`
16			`struct bt455_regs {`
17			`volatile u8 addr_cmap;`
18			`u8 pad0[3];`
19			`volatile u8 addr_cmap_data;`
20			`u8 pad1[3];`
21			`volatile u8 addr_clr;`
22			`u8 pad2[3];`
23			`volatile u8 addr_ovly;`
24			`u8 pad3[3];`
25			`};`
26
27			`static inline void bt455_select_reg(struct bt455_regs *regs, int ir)`
28			`{`
29			`mb();`
30			`regs->addr_cmap = ir & 0x0f;`
31			`}`
32
33			`/*`
34			`* Read/write to a Bt455 color map register.`
35			`*/`
36			`static inline void bt455_read_cmap_entry(struct bt455_regs *regs, int cr,`
37			`u8* red, u8* green, u8* blue)`
38			`{`
39			`bt455_select_reg(regs, cr);`
40			`mb();`
41			`*red = regs->addr_cmap_data & 0x0f;`
42			`rmb();`
43			`*green = regs->addr_cmap_data & 0x0f;`
44			`rmb();`
45			`*blue = regs->addr_cmap_data & 0x0f;`
46			`}`
47
48			`static inline void bt455_write_cmap_entry(struct bt455_regs *regs, int cr,`
49			`u8 red, u8 green, u8 blue)`
50			`{`
51			`bt455_select_reg(regs, cr);`
52			`wmb();`
53			`regs->addr_cmap_data = red & 0x0f;`
54			`wmb();`
55			`regs->addr_cmap_data = green & 0x0f;`
56			`wmb();`
57			`regs->addr_cmap_data = blue & 0x0f;`
58			`}`
59
60			`static inline void bt455_write_ovly_entry(struct bt455_regs *regs, int cr,`
61			`u8 red, u8 green, u8 blue)`
62			`{`
63			`bt455_select_reg(regs, cr);`
64			`wmb();`
65			`regs->addr_ovly = red & 0x0f;`
66			`wmb();`
67			`regs->addr_ovly = green & 0x0f;`
68			`wmb();`
69			`regs->addr_ovly = blue & 0x0f;`
70			`}`
71
72			`static inline void bt455_set_cursor(struct bt455_regs *regs)`
73			`{`
74			`mb();`
75			`regs->addr_ovly = 0x0f;`
76			`wmb();`
77			`regs->addr_ovly = 0x0f;`
78			`wmb();`
79			`regs->addr_ovly = 0x0f;`
80			`}`
81
82			`static inline void bt455_erase_cursor(struct bt455_regs *regs)`
83			`{`
84			`/* bt455_write_cmap_entry(regs, 8, 0x00, 0x00, 0x00); */`
85			`/* bt455_write_cmap_entry(regs, 9, 0x00, 0x00, 0x00); */`
86			`bt455_write_ovly_entry(regs, 8, 0x03, 0x03, 0x03);`
87			`bt455_write_ovly_entry(regs, 9, 0x07, 0x07, 0x07);`
88
89			`wmb();`
90			`regs->addr_ovly = 0x09;`
91			`wmb();`
92			`regs->addr_ovly = 0x09;`
93			`wmb();`
94			`regs->addr_ovly = 0x09;`
95			`}`

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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [video/] [bt455.h] - Blame information for rev 62