#ifndef VGA_H_
#define VGA_H_
-#include "sizeint.h"
-#include "dosutil.h"
-#include "cdpmi.h"
-#include "vgaregs.h"
-
-#define VGA_FBADDR ((void*)phys_to_virt(0xa0000))
-
-int vga_setmode(int mode);
-int vga_setmodex(void);
-
-#define vga_planemask(mask) vga_sc_write(VGA_SC_MAPMASK_REG, mask)
-
-#ifdef __WATCOMC__
-void vga_setpal(int16_t idx, uint8_t r, uint8_t g, uint8_t b);
-#pragma aux vga_setpal = \
- "test ax, 0x8000" \
- "jnz skip_dacaddr" \
- "mov dx, 0x3c8" \
- "out dx, al" \
- "skip_dacaddr:" \
- "mov dx, 0x3c9" \
- "mov al, bl" \
- "shr al, 2" \
- "out dx, al" \
- "mov al, bh" \
- "shr al, 2" \
- "out dx, al" \
- "mov al, cl" \
- "shr al, 2" \
- "out dx, al" \
- parm[ax][bl][bh][cl] \
- modify[dx];
-#endif /* __WATCOMC__ */
-
-#define vga_sc_write(reg, data) \
- outpw(VGA_SC_ADDR_PORT, (uint16_t)(reg) | ((uint16_t)(data) << 8))
-#define vga_sc_read(reg) \
- (outp(VGA_SC_ADDR_PORT, reg), inp(VGA_SC_DATA_PORT))
-#define vga_crtc_write(reg, data) \
- outpw(VGA_CRTC_PORT, (uint16_t)(reg) | ((uint16_t)(data) << 8))
-#define vga_crtc_read(reg) \
- (outp(VGA_CRTC_ADDR_PORT, reg), inp(VGA_CRTC_DATA_PORT))
-#define vga_crtc_wrmask(reg, data, mask) \
- outp(VGA_CRTC_DATA_PORT, (crtc_read(reg) & ~(mask)) | (data))
+/* ---- VGA registers ---- */
+#define VGA_AC_PORT 0x3c0
+#define VGA_AC_RD_PORT 0x3c1
+#define VGA_SC_ADDR_PORT 0x3c4
+#define VGA_SC_DATA_PORT 0x3c5
+#define VGA_DAC_STATUS_PORT 0x3c7
+#define VGA_DAC_RADDR_PORT 0x3c7
+#define VGA_DAC_WADDR_PORT 0x3c8
+#define VGA_DAC_DATA_PORT 0x3c9
+#define VGA_GC_ADDR_PORT 0x3ce
+#define VGA_GC_DATA_PORT 0x3cf
+#define VGA_CRTC_PORT 0x3d4
+#define VGA_CRTC_ADDR_PORT 0x3d4
+#define VGA_CRTC_DATA_PORT 0x3d5
+#define VGA_STAT0_PORT 0x3c2
+#define VGA_STAT1_PORT 0x3da
+#define VGA_MISC_PORT 0x3c2
+#define VGA_MISC_RD_PORT 0x3cc
+
+/* attribute controller registers */
+#define VGA_AC_EN 0x20
+#define VGA_AC_MODE_REG 0x10
+
+/* sequence controller registers */
+#define VGA_SC_RESET_REG 0x00
+#define VGA_SC_CLOCK_REG 0x01
+#define VGA_SC_MAPMASK_REG 0x02
+#define VGA_SC_MEMMODE_REG 0x04
+
+/* graphics controller registers */
+#define VGA_GC_SR_REG 0x00
+#define VGA_GC_SREN_REG 0x01
+#define VGA_GC_ROT_REG 0x03
+#define VGA_GC_MODE_REG 0x05
+#define VGA_GC_MASK_REG 0x08
+
+/* attribute controller mode register (10h) bits */
+#define VGA_AC_MODE_GFX 0x01
+#define VGA_AC_MODE_MONO 0x02
+#define VGA_AC_MODE_LGE 0x04
+#define VGA_AC_MODE_BLINK 0x08
+#define VGA_AC_MODE_PIXPAN 0x20
+#define VGA_AC_MODE_8BIT 0x40
+
+/* misc register bits */
+#define VGA_MISC_COLOR 0x01
+#define VGA_MISC_CPUEN 0x02
+#define VGA_MISC_CLK25 0
+#define VGA_MISC_CLK28 0x04
+#define VGA_MISC_PG1 0x20
+#define VGA_MISC_400 0
+#define VGA_MISC_350 0x40
+#define VGA_MISC_480 0xc0
+
+
+/* CRTC registers */
+#define CRTC_HTOTAL_REG 0x00
+#define CRTC_HEND_REG 0x01
+#define CRTC_HBLSTART_REG 0x02
+#define CRTC_HBLEND_REG 0x03
+#define CRTC_HRETSTART_REG 0x04
+#define CRTC_HRETEND_REG 0x05
+#define CRTC_VTOTAL_REG 0x06
+#define CRTC_OVF_REG 0x07
+#define CRTC_PRESET_REG 0x08
+#define CRTC_MAXSCAN_REG 0x09
+#define CRTC_CURSTART_REG 0x0a
+#define CRTC_CUREND_REG 0x0b
+#define CRTC_STARTH_REG 0x0c
+#define CRTC_STARTL_REG 0x0d
+#define CRTC_CURH_REG 0x0e
+#define CRTC_CURL_REG 0x0f
+#define CRTC_VRETSTART_REG 0x10
+#define CRTC_VRETEND_REG 0x11
+#define CRTC_VEND_REG 0x12
+#define CRTC_OFFSET_REG 0x13
+#define CRTC_UL_REG 0x14
+#define CRTC_VBLSTART_REG 0x15
+#define CRTC_VBLEND_REG 0x16
+#define CRTC_MODE_REG 0x17
+#define CRTC_LCMP_REG 0x18
+
+/* CRTC register bits */
+#define CRTC_VRETEND_PR 0x80
+
+void vga_vsync(void);
+void vga_setpal(int idx, int count, const struct vid_color *col);
+void vga_getpal(int idx, int count, struct vid_color *col);
#endif /* VGA_H_ */
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