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125 lines
3.7 KiB
125 lines
3.7 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LINUX_SVGA_H |
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#define _LINUX_SVGA_H |
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#include <linux/pci.h> |
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#include <video/vga.h> |
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/* Terminator for register set */ |
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#define VGA_REGSET_END_VAL 0xFF |
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#define VGA_REGSET_END {VGA_REGSET_END_VAL, 0, 0} |
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struct vga_regset { |
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u8 regnum; |
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u8 lowbit; |
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u8 highbit; |
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}; |
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/* ------------------------------------------------------------------------- */ |
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#define SVGA_FORMAT_END_VAL 0xFFFF |
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#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} |
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struct svga_fb_format { |
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/* var part */ |
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u32 bits_per_pixel; |
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struct fb_bitfield red; |
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struct fb_bitfield green; |
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struct fb_bitfield blue; |
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struct fb_bitfield transp; |
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u32 nonstd; |
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/* fix part */ |
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u32 type; |
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u32 type_aux; |
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u32 visual; |
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u32 xpanstep; |
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u32 xresstep; |
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}; |
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struct svga_timing_regs { |
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const struct vga_regset *h_total_regs; |
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const struct vga_regset *h_display_regs; |
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const struct vga_regset *h_blank_start_regs; |
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const struct vga_regset *h_blank_end_regs; |
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const struct vga_regset *h_sync_start_regs; |
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const struct vga_regset *h_sync_end_regs; |
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const struct vga_regset *v_total_regs; |
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const struct vga_regset *v_display_regs; |
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const struct vga_regset *v_blank_start_regs; |
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const struct vga_regset *v_blank_end_regs; |
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const struct vga_regset *v_sync_start_regs; |
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const struct vga_regset *v_sync_end_regs; |
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}; |
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struct svga_pll { |
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u16 m_min; |
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u16 m_max; |
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u16 n_min; |
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u16 n_max; |
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u16 r_min; |
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u16 r_max; /* r_max < 32 */ |
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u32 f_vco_min; |
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u32 f_vco_max; |
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u32 f_base; |
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}; |
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/* Write a value to the attribute register */ |
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static inline void svga_wattr(void __iomem *regbase, u8 index, u8 data) |
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{ |
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vga_r(regbase, VGA_IS1_RC); |
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vga_w(regbase, VGA_ATT_IW, index); |
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vga_w(regbase, VGA_ATT_W, data); |
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} |
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/* Write a value to a sequence register with a mask */ |
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static inline void svga_wseq_mask(void __iomem *regbase, u8 index, u8 data, u8 mask) |
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{ |
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vga_wseq(regbase, index, (data & mask) | (vga_rseq(regbase, index) & ~mask)); |
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} |
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/* Write a value to a CRT register with a mask */ |
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static inline void svga_wcrt_mask(void __iomem *regbase, u8 index, u8 data, u8 mask) |
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{ |
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vga_wcrt(regbase, index, (data & mask) | (vga_rcrt(regbase, index) & ~mask)); |
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} |
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static inline int svga_primary_device(struct pci_dev *dev) |
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{ |
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u16 flags; |
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pci_read_config_word(dev, PCI_COMMAND, &flags); |
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return (flags & PCI_COMMAND_IO); |
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} |
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void svga_wcrt_multi(void __iomem *regbase, const struct vga_regset *regset, u32 value); |
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void svga_wseq_multi(void __iomem *regbase, const struct vga_regset *regset, u32 value); |
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void svga_set_default_gfx_regs(void __iomem *regbase); |
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void svga_set_default_atc_regs(void __iomem *regbase); |
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void svga_set_default_seq_regs(void __iomem *regbase); |
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void svga_set_default_crt_regs(void __iomem *regbase); |
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void svga_set_textmode_vga_regs(void __iomem *regbase); |
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void svga_settile(struct fb_info *info, struct fb_tilemap *map); |
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void svga_tilecopy(struct fb_info *info, struct fb_tilearea *area); |
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void svga_tilefill(struct fb_info *info, struct fb_tilerect *rect); |
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void svga_tileblit(struct fb_info *info, struct fb_tileblit *blit); |
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void svga_tilecursor(void __iomem *regbase, struct fb_info *info, struct fb_tilecursor *cursor); |
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int svga_get_tilemax(struct fb_info *info); |
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void svga_get_caps(struct fb_info *info, struct fb_blit_caps *caps, |
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struct fb_var_screeninfo *var); |
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int svga_compute_pll(const struct svga_pll *pll, u32 f_wanted, u16 *m, u16 *n, u16 *r, int node); |
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int svga_check_timings(const struct svga_timing_regs *tm, struct fb_var_screeninfo *var, int node); |
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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); |
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int svga_match_format(const struct svga_fb_format *frm, struct fb_var_screeninfo *var, struct fb_fix_screeninfo *fix); |
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#endif /* _LINUX_SVGA_H */ |
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