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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
David Millerf6b0cc42011-01-11 23:49:18 +000070static inline void svga_wattr(void __iomem *regbase, u8 index, u8 data)
Ondrej Zajiceka2684222007-02-12 00:54:49 -080071{
David Millerf6b0cc42011-01-11 23:49:18 +000072 vga_r(regbase, VGA_IS1_RC);
73 vga_w(regbase, VGA_ATT_IW, index);
74 vga_w(regbase, VGA_ATT_W, data);
Ondrej Zajiceka2684222007-02-12 00:54:49 -080075}
76
77/* Write a value to a sequence register with a mask */
78
David Millerd907ec02011-01-11 23:51:08 +000079static inline void svga_wseq_mask(void __iomem *regbase, u8 index, u8 data, u8 mask)
Ondrej Zajiceka2684222007-02-12 00:54:49 -080080{
David Millerd907ec02011-01-11 23:51:08 +000081 vga_wseq(regbase, index, (data & mask) | (vga_rseq(regbase, index) & ~mask));
Ondrej Zajiceka2684222007-02-12 00:54:49 -080082}
83
84/* Write a value to a CRT register with a mask */
85
David Millerea770782011-01-11 23:51:26 +000086static inline void svga_wcrt_mask(void __iomem *regbase, u8 index, u8 data, u8 mask)
Ondrej Zajiceka2684222007-02-12 00:54:49 -080087{
David Millerea770782011-01-11 23:51:26 +000088 vga_wcrt(regbase, index, (data & mask) | (vga_rcrt(regbase, index) & ~mask));
Ondrej Zajiceka2684222007-02-12 00:54:49 -080089}
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
David Miller21da3862011-01-11 23:49:34 +000099void svga_wcrt_multi(void __iomem *regbase, const struct vga_regset *regset, u32 value);
David Millerdc6aff32011-01-11 23:49:49 +0000100void svga_wseq_multi(void __iomem *regbase, const struct vga_regset *regset, u32 value);
Ondrej Zajiceka2684222007-02-12 00:54:49 -0800101
David Millere2fade22011-01-11 23:50:04 +0000102void svga_set_default_gfx_regs(void __iomem *regbase);
David Millerf51a14d2011-01-11 23:50:36 +0000103void svga_set_default_atc_regs(void __iomem *regbase);
David Millera4ade832011-01-11 23:50:54 +0000104void svga_set_default_seq_regs(void __iomem *regbase);
David Miller1d28fca2011-01-11 23:51:41 +0000105void svga_set_default_crt_regs(void __iomem *regbase);
David Miller9c963942011-01-11 23:51:56 +0000106void svga_set_textmode_vga_regs(void __iomem *regbase);
Ondrej Zajiceka2684222007-02-12 00:54:49 -0800107
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);
David Miller55db0922011-01-11 23:52:11 +0000112void svga_tilecursor(void __iomem *regbase, 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);
David Miller38d26202011-01-11 23:52:25 +0000119void svga_set_timings(void __iomem *regbase, const struct svga_timing_regs *tm, struct fb_var_screeninfo *var, u32 hmul, u32 hdiv, u32 vmul, u32 vdiv, u32 hborder, int node);
Ondrej Zajiceka2684222007-02-12 00:54:49 -0800120
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