1 #ifndef _LINUX_SVGA_H 2 #define _LINUX_SVGA_H 3 4 #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 12 struct 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 23 struct 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 39 struct 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 55 struct 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 70 static inline void svga_wattr(void __iomem *regbase, u8 index, u8 data) 71 { 72 vga_r(regbase, VGA_IS1_RC); 73 vga_w(regbase, VGA_ATT_IW, index); 74 vga_w(regbase, VGA_ATT_W, data); 75 } 76 77 /* Write a value to a sequence register with a mask */ 78 79 static inline void svga_wseq_mask(void __iomem *regbase, u8 index, u8 data, u8 mask) 80 { 81 vga_wseq(regbase, index, (data & mask) | (vga_rseq(regbase, index) & ~mask)); 82 } 83 84 /* Write a value to a CRT register with a mask */ 85 86 static inline void svga_wcrt_mask(void __iomem *regbase, u8 index, u8 data, u8 mask) 87 { 88 vga_wcrt(regbase, index, (data & mask) | (vga_rcrt(regbase, index) & ~mask)); 89 } 90 91 static 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 99 void svga_wcrt_multi(void __iomem *regbase, const struct vga_regset *regset, u32 value); 100 void svga_wseq_multi(void __iomem *regbase, const struct vga_regset *regset, u32 value); 101 102 void svga_set_default_gfx_regs(void __iomem *regbase); 103 void svga_set_default_atc_regs(void __iomem *regbase); 104 void svga_set_default_seq_regs(void __iomem *regbase); 105 void svga_set_default_crt_regs(void __iomem *regbase); 106 void svga_set_textmode_vga_regs(void __iomem *regbase); 107 108 void svga_settile(struct fb_info *info, struct fb_tilemap *map); 109 void svga_tilecopy(struct fb_info *info, struct fb_tilearea *area); 110 void svga_tilefill(struct fb_info *info, struct fb_tilerect *rect); 111 void svga_tileblit(struct fb_info *info, struct fb_tileblit *blit); 112 void svga_tilecursor(void __iomem *regbase, struct fb_info *info, struct fb_tilecursor *cursor); 113 int svga_get_tilemax(struct fb_info *info); 114 void svga_get_caps(struct fb_info *info, struct fb_blit_caps *caps, 115 struct fb_var_screeninfo *var); 116 117 int svga_compute_pll(const struct svga_pll *pll, u32 f_wanted, u16 *m, u16 *n, u16 *r, int node); 118 int svga_check_timings(const struct svga_timing_regs *tm, struct fb_var_screeninfo *var, int node); 119 void 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); 120 121 int svga_match_format(const struct svga_fb_format *frm, struct fb_var_screeninfo *var, struct fb_fix_screeninfo *fix); 122 123 #endif /* _LINUX_SVGA_H */ 124 125