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Ondrej Zajiceka2684222007-02-12 00:54:49 -08001#ifndef _LINUX_SVGA_H
2#define _LINUX_SVGA_H
3
Ondrej Zajiceka2684222007-02-12 00:54:49 -08004#include <linux/pci.h>
5#include <video/vga.h>
6
7/* Terminator for register set */
8
9#define VGA_REGSET_END_VAL 0xFF
10#define VGA_REGSET_END {VGA_REGSET_END_VAL, 0, 0}
11
12struct vga_regset {
13 u8 regnum;
14 u8 lowbit;
15 u8 highbit;
16};
17
18/* ------------------------------------------------------------------------- */
19
20#define SVGA_FORMAT_END_VAL 0xFFFF
21#define SVGA_FORMAT_END {SVGA_FORMAT_END_VAL, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, 0, 0, 0, 0, 0, 0}
22
23struct svga_fb_format {
24 /* var part */
25 u32 bits_per_pixel;
26 struct fb_bitfield red;
27 struct fb_bitfield green;
28 struct fb_bitfield blue;
29 struct fb_bitfield transp;
30 u32 nonstd;
31 /* fix part */
32 u32 type;
33 u32 type_aux;
34 u32 visual;
35 u32 xpanstep;
36 u32 xresstep;
37};
38
39struct svga_timing_regs {
40 const struct vga_regset *h_total_regs;
41 const struct vga_regset *h_display_regs;
42 const struct vga_regset *h_blank_start_regs;
43 const struct vga_regset *h_blank_end_regs;
44 const struct vga_regset *h_sync_start_regs;
45 const struct vga_regset *h_sync_end_regs;
46
47 const struct vga_regset *v_total_regs;
48 const struct vga_regset *v_display_regs;
49 const struct vga_regset *v_blank_start_regs;
50 const struct vga_regset *v_blank_end_regs;
51 const struct vga_regset *v_sync_start_regs;
52 const struct vga_regset *v_sync_end_regs;
53};
54
55struct svga_pll {
56 u16 m_min;
57 u16 m_max;
58 u16 n_min;
59 u16 n_max;
60 u16 r_min;
61 u16 r_max; /* r_max < 32 */
62 u32 f_vco_min;
63 u32 f_vco_max;
64 u32 f_base;
65};
66
67
68/* Write a value to the attribute register */
69
70static inline void svga_wattr(u8 index, u8 data)
71{
72 inb(0x3DA);
73 outb(index, 0x3C0);
74 outb(data, 0x3C0);
75}
76
77/* Write a value to a sequence register with a mask */
78
79static inline void svga_wseq_mask(u8 index, u8 data, u8 mask)
80{
81 vga_wseq(NULL, index, (data & mask) | (vga_rseq(NULL, index) & ~mask));
82}
83
84/* Write a value to a CRT register with a mask */
85
86static inline void svga_wcrt_mask(u8 index, u8 data, u8 mask)
87{
88 vga_wcrt(NULL, index, (data & mask) | (vga_rcrt(NULL, index) & ~mask));
89}
90
91static inline int svga_primary_device(struct pci_dev *dev)
92{
93 u16 flags;
94 pci_read_config_word(dev, PCI_COMMAND, &flags);
95 return (flags & PCI_COMMAND_IO);
96}
97
98
99void svga_wcrt_multi(const struct vga_regset *regset, u32 value);
100void svga_wseq_multi(const struct vga_regset *regset, u32 value);
101
102void svga_set_default_gfx_regs(void);
103void svga_set_default_atc_regs(void);
104void svga_set_default_seq_regs(void);
105void svga_set_default_crt_regs(void);
106void svga_set_textmode_vga_regs(void);
107
108void svga_settile(struct fb_info *info, struct fb_tilemap *map);
109void svga_tilecopy(struct fb_info *info, struct fb_tilearea *area);
110void svga_tilefill(struct fb_info *info, struct fb_tilerect *rect);
111void svga_tileblit(struct fb_info *info, struct fb_tileblit *blit);
112void svga_tilecursor(struct fb_info *info, struct fb_tilecursor *cursor);
Ondrej Zajicek34ed25f2007-05-08 00:40:00 -0700113int svga_get_tilemax(struct fb_info *info);
Antonino A. Daplas5a87ede2007-05-09 02:35:32 -0700114void svga_get_caps(struct fb_info *info, struct fb_blit_caps *caps,
115 struct fb_var_screeninfo *var);
Ondrej Zajiceka2684222007-02-12 00:54:49 -0800116
117int svga_compute_pll(const struct svga_pll *pll, u32 f_wanted, u16 *m, u16 *n, u16 *r, int node);
118int svga_check_timings(const struct svga_timing_regs *tm, struct fb_var_screeninfo *var, int node);
119void svga_set_timings(const struct svga_timing_regs *tm, struct fb_var_screeninfo *var, u32 hmul, u32 hdiv, u32 vmul, u32 vdiv, u32 hborder, int node);
120
121int svga_match_format(const struct svga_fb_format *frm, struct fb_var_screeninfo *var, struct fb_fix_screeninfo *fix);
122
Ondrej Zajiceka2684222007-02-12 00:54:49 -0800123#endif /* _LINUX_SVGA_H */
124