diff options
Diffstat (limited to 'include/video/vga.h')
| -rw-r--r-- | include/video/vga.h | 80 |
1 files changed, 54 insertions, 26 deletions
diff --git a/include/video/vga.h b/include/video/vga.h index cac567f22e62..468764d6727a 100644 --- a/include/video/vga.h +++ b/include/video/vga.h @@ -2,15 +2,15 @@ * linux/include/video/vga.h -- standard VGA chipset interaction * * Copyright 1999 Jeff Garzik <jgarzik@pobox.com> - * + * * Copyright history from vga16fb.c: * Copyright 1999 Ben Pfaff and Petr Vandrovec - * Based on VGA info at http://www.osdever.net/FreeVGA/home.htm + * Based on VGA info at http://www.osdever.net/FreeVGA/home.htm * Based on VESA framebuffer (c) 1998 Gerd Knorr * * 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. + * archive for more details. * */ @@ -18,10 +18,12 @@ #define __linux_video_vga_h__ #include <linux/types.h> -#include <asm/io.h> +#include <linux/io.h> #include <asm/vga.h> #include <asm/byteorder.h> +#define VGA_FB_PHYS_BASE 0xA0000 /* VGA framebuffer I/O base */ +#define VGA_FB_PHYS_SIZE 65536 /* VGA framebuffer I/O size */ /* Some of the code below is taken from SVGAlib. The original, unmodified copyright notice for that code is below. */ @@ -190,15 +192,32 @@ struct vgastate { __u32 num_gfx; /* number of gfx registers, 0 for default */ __u32 num_seq; /* number of seq registers, 0 for default */ void *vidstate; -}; +}; extern int save_vga(struct vgastate *state); extern int restore_vga(struct vgastate *state); +static inline unsigned char vga_mm_r (void __iomem *regbase, unsigned short port) +{ + return readb (regbase + port); +} + +static inline void vga_mm_w (void __iomem *regbase, unsigned short port, unsigned char val) +{ + writeb (val, regbase + port); +} + +static inline void vga_mm_w_fast (void __iomem *regbase, unsigned short port, + unsigned char reg, unsigned char val) +{ + writew (VGA_OUT16VAL (val, reg), regbase + port); +} + /* * generic VGA port read/write */ - +#ifdef CONFIG_HAS_IOPORT + static inline unsigned char vga_io_r (unsigned short port) { return inb_p(port); @@ -215,22 +234,6 @@ static inline void vga_io_w_fast (unsigned short port, unsigned char reg, outw(VGA_OUT16VAL (val, reg), port); } -static inline unsigned char vga_mm_r (void __iomem *regbase, unsigned short port) -{ - return readb (regbase + port); -} - -static inline void vga_mm_w (void __iomem *regbase, unsigned short port, unsigned char val) -{ - writeb (val, regbase + port); -} - -static inline void vga_mm_w_fast (void __iomem *regbase, unsigned short port, - unsigned char reg, unsigned char val) -{ - writew (VGA_OUT16VAL (val, reg), regbase + port); -} - static inline unsigned char vga_r (void __iomem *regbase, unsigned short port) { if (regbase) @@ -256,12 +259,29 @@ static inline void vga_w_fast (void __iomem *regbase, unsigned short port, else vga_io_w_fast (port, reg, val); } +#else /* CONFIG_HAS_IOPORT */ +static inline unsigned char vga_r (void __iomem *regbase, unsigned short port) +{ + return vga_mm_r (regbase, port); +} +static inline void vga_w (void __iomem *regbase, unsigned short port, unsigned char val) +{ + vga_mm_w (regbase, port, val); +} + + +static inline void vga_w_fast (void __iomem *regbase, unsigned short port, + unsigned char reg, unsigned char val) +{ + vga_mm_w_fast (regbase, port, reg, val); +} +#endif /* CONFIG_HAS_IOPORT */ /* * VGA CRTC register read/write */ - + static inline unsigned char vga_rcrt (void __iomem *regbase, unsigned char reg) { vga_w (regbase, VGA_CRT_IC, reg); @@ -278,6 +298,7 @@ static inline void vga_wcrt (void __iomem *regbase, unsigned char reg, unsigned #endif /* VGA_OUTW_WRITE */ } +#ifdef CONFIG_HAS_IOPORT static inline unsigned char vga_io_rcrt (unsigned char reg) { vga_io_w (VGA_CRT_IC, reg); @@ -293,6 +314,7 @@ static inline void vga_io_wcrt (unsigned char reg, unsigned char val) vga_io_w (VGA_CRT_DC, val); #endif /* VGA_OUTW_WRITE */ } +#endif /* CONFIG_HAS_IOPORT */ static inline unsigned char vga_mm_rcrt (void __iomem *regbase, unsigned char reg) { @@ -314,7 +336,7 @@ static inline void vga_mm_wcrt (void __iomem *regbase, unsigned char reg, unsign /* * VGA sequencer register read/write */ - + static inline unsigned char vga_rseq (void __iomem *regbase, unsigned char reg) { vga_w (regbase, VGA_SEQ_I, reg); @@ -331,6 +353,7 @@ static inline void vga_wseq (void __iomem *regbase, unsigned char reg, unsigned #endif /* VGA_OUTW_WRITE */ } +#ifdef CONFIG_HAS_IOPORT static inline unsigned char vga_io_rseq (unsigned char reg) { vga_io_w (VGA_SEQ_I, reg); @@ -346,6 +369,7 @@ static inline void vga_io_wseq (unsigned char reg, unsigned char val) vga_io_w (VGA_SEQ_D, val); #endif /* VGA_OUTW_WRITE */ } +#endif /* CONFIG_HAS_IOPORT */ static inline unsigned char vga_mm_rseq (void __iomem *regbase, unsigned char reg) { @@ -366,7 +390,7 @@ static inline void vga_mm_wseq (void __iomem *regbase, unsigned char reg, unsign /* * VGA graphics controller register read/write */ - + static inline unsigned char vga_rgfx (void __iomem *regbase, unsigned char reg) { vga_w (regbase, VGA_GFX_I, reg); @@ -383,6 +407,7 @@ static inline void vga_wgfx (void __iomem *regbase, unsigned char reg, unsigned #endif /* VGA_OUTW_WRITE */ } +#ifdef CONFIG_HAS_IOPORT static inline unsigned char vga_io_rgfx (unsigned char reg) { vga_io_w (VGA_GFX_I, reg); @@ -398,6 +423,7 @@ static inline void vga_io_wgfx (unsigned char reg, unsigned char val) vga_io_w (VGA_GFX_D, val); #endif /* VGA_OUTW_WRITE */ } +#endif /* CONFIG_HAS_IOPORT */ static inline unsigned char vga_mm_rgfx (void __iomem *regbase, unsigned char reg) { @@ -419,7 +445,7 @@ static inline void vga_mm_wgfx (void __iomem *regbase, unsigned char reg, unsign /* * VGA attribute controller register read/write */ - + static inline unsigned char vga_rattr (void __iomem *regbase, unsigned char reg) { vga_w (regbase, VGA_ATT_IW, reg); @@ -432,6 +458,7 @@ static inline void vga_wattr (void __iomem *regbase, unsigned char reg, unsigned vga_w (regbase, VGA_ATT_W, val); } +#ifdef CONFIG_HAS_IOPORT static inline unsigned char vga_io_rattr (unsigned char reg) { vga_io_w (VGA_ATT_IW, reg); @@ -443,6 +470,7 @@ static inline void vga_io_wattr (unsigned char reg, unsigned char val) vga_io_w (VGA_ATT_IW, reg); vga_io_w (VGA_ATT_W, val); } +#endif /* CONFIG_HAS_IOPORT */ static inline unsigned char vga_mm_rattr (void __iomem *regbase, unsigned char reg) { |