forked from Minki/linux
[PATCH] savagefb: Convert from VGA IO access to MMIO access
Use MMIO registers instead of banging the VGA IO registers. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Antonino A. Daplas
Linus Torvalds
parent
1013d26663
commit
1cc650c69f
@ -169,6 +169,7 @@ struct savagefb_par {
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struct savagefb_i2c_chan chan;
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unsigned char *edid;
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u32 pseudo_palette[16];
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int paletteEnabled;
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int pm_state;
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int display_type;
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int dvi;
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@ -244,105 +245,150 @@ struct savagefb_par {
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/* IO functions */
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#define vga_in8(addr) (inb (addr))
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#define vga_in16(addr) (inw (addr))
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#define vga_in32(addr) (inl (addr))
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#define vga_out8(addr,val) (outb ((val), (addr)))
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#define vga_out16(addr,val) (outw ((val), (addr)))
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#define vga_out32(addr,val) (outl ((val), (addr)))
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#define savage_in16(addr) readw(par->mmio.vbase + (addr))
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#define savage_in32(addr) readl(par->mmio.vbase + (addr))
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#define savage_out16(addr,val) writew((val), par->mmio.vbase + (addr))
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#define savage_out32(addr,val) writel((val), par->mmio.vbase + (addr))
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static inline u8 VGArCR (u8 index)
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static inline u8 savage_in8(u32 addr, struct savagefb_par *par)
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{
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outb (index, 0x3d4);
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return inb (0x3d5);
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return readb(par->mmio.vbase + addr);
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}
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static inline u8 VGArGR (u8 index)
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static inline u16 savage_in16(u32 addr, struct savagefb_par *par)
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{
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outb (index, 0x3ce);
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return inb (0x3cf);
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return readw(par->mmio.vbase + addr);
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}
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static inline u8 VGArSEQ (u8 index)
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static inline u32 savage_in32(u32 addr, struct savagefb_par *par)
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{
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outb (index, 0x3c4);
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return inb (0x3c5);
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return readl(par->mmio.vbase + addr);
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}
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#define VGAwCR(index, val) \
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do { \
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vga_out8 (0x3d4, index); \
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vga_out8 (0x3d5, val); \
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} while (0)
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static inline void savage_out8(u32 addr, u8 val, struct savagefb_par *par)
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{
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writeb(val, par->mmio.vbase + addr);
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}
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#define VGAwGR(index, val) \
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do { \
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vga_out8 (0x3ce, index); \
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vga_out8 (0x3cf, val); \
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} while (0)
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static inline void savage_out16(u32 addr, u16 val, struct savagefb_par *par)
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{
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writew(val, par->mmio.vbase + addr);
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}
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#define VGAwSEQ(index, val) \
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do { \
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vga_out8 (0x3c4, index); \
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vga_out8 (0x3c5, val); \
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} while (0)
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static inline void savage_out32(u32 addr, u32 val, struct savagefb_par *par)
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{
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writel(val, par->mmio.vbase + addr);
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}
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#define VGAenablePalette() \
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do { \
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u8 tmp; \
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\
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tmp = vga_in8 (0x3da); \
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vga_out8 (0x3c0, 0x00); \
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paletteEnabled = 1; \
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} while (0)
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static inline u8 vga_in8(int addr, struct savagefb_par *par)
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{
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return savage_in8(0x8000 + addr, par);
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}
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#define VGAdisablePalette() \
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do { \
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u8 tmp; \
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\
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tmp = vga_in8 (0x3da); \
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vga_out8 (0x3c0, 0x20); \
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paletteEnabled = 0; \
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} while (0)
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static inline u16 vga_in16(int addr, struct savagefb_par *par)
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{
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return savage_in16(0x8000 + addr, par);
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}
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#define VGAwATTR(index, value) \
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do { \
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u8 tmp; \
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\
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if (paletteEnabled) \
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index &= ~0x20; \
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else \
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index |= 0x20; \
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\
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tmp = vga_in8 (0x3da); \
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vga_out8 (0x3c0, index); \
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vga_out8 (0x3c0, value); \
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} while (0)
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static inline u8 vga_in32(int addr, struct savagefb_par *par)
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{
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return savage_in32(0x8000 + addr, par);
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}
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#define VGAwMISC(value) \
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do { \
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vga_out8 (0x3c2, value); \
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} while (0)
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static inline void vga_out8(int addr, u8 val, struct savagefb_par *par)
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{
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savage_out8(0x8000 + addr, val, par);
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}
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static inline void vga_out16(int addr, u16 val, struct savagefb_par *par)
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{
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savage_out16(0x8000 + addr, val, par);
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}
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static inline void vga_out32(int addr, u32 val, struct savagefb_par *par)
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{
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savage_out32(0x8000 + addr, val, par);
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}
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static inline u8 VGArCR (u8 index, struct savagefb_par *par)
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{
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vga_out8(0x3d4, index, par);
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return vga_in8(0x3d5, par);
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}
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static inline u8 VGArGR (u8 index, struct savagefb_par *par)
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{
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vga_out8(0x3ce, index, par);
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return vga_in8(0x3cf, par);
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}
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static inline u8 VGArSEQ (u8 index, struct savagefb_par *par)
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{
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vga_out8(0x3c4, index, par);
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return vga_in8(0x3c5, par);
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}
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static inline void VGAwCR(u8 index, u8 val, struct savagefb_par *par)
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{
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vga_out8(0x3d4, index, par);
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vga_out8(0x3d5, val, par);
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}
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static inline void VGAwGR(u8 index, u8 val, struct savagefb_par *par)
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{
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vga_out8(0x3ce, index, par);
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vga_out8(0x3cf, val, par);
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}
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static inline void VGAwSEQ(u8 index, u8 val, struct savagefb_par *par)
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{
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vga_out8(0x3c4, index, par);
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vga_out8 (0x3c5, val, par);
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}
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static inline void VGAenablePalette(struct savagefb_par *par)
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{
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u8 tmp;
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tmp = vga_in8(0x3da, par);
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vga_out8(0x3c0, 0x00, par);
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par->paletteEnabled = 1;
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}
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static inline void VGAdisablePalette(struct savagefb_par *par)
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{
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u8 tmp;
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tmp = vga_in8(0x3da, par);
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vga_out8(0x3c0, 0x20, par);
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par->paletteEnabled = 0;
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}
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static inline void VGAwATTR(u8 index, u8 value, struct savagefb_par *par)
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{
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u8 tmp;
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if (par->paletteEnabled)
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index &= ~0x20;
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else
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index |= 0x20;
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tmp = vga_in8(0x3da, par);
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vga_out8(0x3c0, index, par);
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vga_out8 (0x3c0, value, par);
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}
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static inline void VGAwMISC(u8 value, struct savagefb_par *par)
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{
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vga_out8(0x3c2, value, par);
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}
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#ifndef CONFIG_FB_SAVAGE_ACCEL
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#define savagefb_set_clip(x)
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#endif
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#define VerticalRetraceWait() \
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{ \
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vga_out8 (0x3d4, 0x17); \
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if (vga_in8 (0x3d5) & 0x80) { \
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while ((vga_in8(0x3da) & 0x08) == 0x08) ; \
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while ((vga_in8(0x3da) & 0x08) == 0x00) ; \
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} \
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static inline void VerticalRetraceWait(struct savagefb_par *par)
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{
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vga_out8(0x3d4, 0x17, par);
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if (vga_in8(0x3d5, par) & 0x80) {
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while ((vga_in8(0x3da, par) & 0x08) == 0x08);
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while ((vga_in8(0x3da, par) & 0x08) == 0x00);
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}
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}
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extern int savagefb_probe_i2c_connector(struct fb_info *info,
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