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-rw-r--r--arch/ppc/boot/lib/vreset.c805
1 files changed, 0 insertions, 805 deletions
diff --git a/arch/ppc/boot/lib/vreset.c b/arch/ppc/boot/lib/vreset.c
deleted file mode 100644
index 98539e9f7f96..000000000000
--- a/arch/ppc/boot/lib/vreset.c
+++ /dev/null
@@ -1,805 +0,0 @@
-/*
- * vreset.c
- *
- * Initialize the VGA control registers to 80x25 text mode.
- *
- * Adapted from a program by:
- * Steve Sellgren
- * San Francisco Indigo Company
- * sfindigo!sellgren@uunet.uu.net
- *
- * Original concept by:
- * Gary Thomas <gdt@linuxppc.org>
- * Adapted for Moto boxes by:
- * Pat Kane & Mark Scott, 1996
- * Adapted for IBM portables by:
- * Takeshi Ishimoto
- * Multi-console support:
- * Terje Malmedal <terje.malmedal@usit.uio.no>
- */
-
-#include "iso_font.h"
-#include "nonstdio.h"
-
-extern char *vidmem;
-extern int lines, cols;
-struct VaRegs;
-
-/*
- * VGA Register
- */
-struct VgaRegs
-{
- unsigned short io_port;
- unsigned char io_index;
- unsigned char io_value;
-};
-
-void unlockVideo(int slot);
-void setTextRegs(struct VgaRegs *svp);
-void setTextCLUT(int shift);
-void clearVideoMemory(void);
-void loadFont(unsigned char *ISA_mem);
-
-static void mdelay(int ms)
-{
- for (; ms > 0; --ms)
- udelay(1000);
-}
-
-/*
- * Default console text mode registers used to reset
- * graphics adapter.
- */
-#define NREGS 54
-#define ENDMK 0xFFFF /* End marker */
-
-#define S3Vendor 0x5333
-#define CirrusVendor 0x1013
-#define DiamondVendor 0x100E
-#define MatroxVendor 0x102B
-#define ParadiseVendor 0x101C
-
-struct VgaRegs GenVgaTextRegs[NREGS+1] = {
- /* port index value */
- /* SR Regs */
- { 0x3c4, 0x1, 0x0 },
- { 0x3c4, 0x2, 0x3 },
- { 0x3c4, 0x3, 0x0 },
- { 0x3c4, 0x4, 0x2 },
- /* CR Regs */
- { 0x3d4, 0x0, 0x5f },
- { 0x3d4, 0x1, 0x4f },
- { 0x3d4, 0x2, 0x50 },
- { 0x3d4, 0x3, 0x82 },
- { 0x3d4, 0x4, 0x55 },
- { 0x3d4, 0x5, 0x81 },
- { 0x3d4, 0x6, 0xbf },
- { 0x3d4, 0x7, 0x1f },
- { 0x3d4, 0x8, 0x00 },
- { 0x3d4, 0x9, 0x4f },
- { 0x3d4, 0xa, 0x0d },
- { 0x3d4, 0xb, 0x0e },
- { 0x3d4, 0xc, 0x00 },
- { 0x3d4, 0xd, 0x00 },
- { 0x3d4, 0xe, 0x00 },
- { 0x3d4, 0xf, 0x00 },
- { 0x3d4, 0x10, 0x9c },
- { 0x3d4, 0x11, 0x8e },
- { 0x3d4, 0x12, 0x8f },
- { 0x3d4, 0x13, 0x28 },
- { 0x3d4, 0x14, 0x1f },
- { 0x3d4, 0x15, 0x96 },
- { 0x3d4, 0x16, 0xb9 },
- { 0x3d4, 0x17, 0xa3 },
- /* GR Regs */
- { 0x3ce, 0x0, 0x0 },
- { 0x3ce, 0x1, 0x0 },
- { 0x3ce, 0x2, 0x0 },
- { 0x3ce, 0x3, 0x0 },
- { 0x3ce, 0x4, 0x0 },
- { 0x3ce, 0x5, 0x10 },
- { 0x3ce, 0x6, 0xe },
- { 0x3ce, 0x7, 0x0 },
- { 0x3ce, 0x8, 0xff },
- { ENDMK }
-};
-
-struct RGBColors
-{
- unsigned char r, g, b;
-};
-
-/*
- * Default console text mode color table.
- * These values were obtained by booting Linux with
- * text mode firmware & then dumping the registers.
- */
-struct RGBColors TextCLUT[256] =
-{
- /* red green blue */
- { 0x0, 0x0, 0x0 },
- { 0x0, 0x0, 0x2a },
- { 0x0, 0x2a, 0x0 },
- { 0x0, 0x2a, 0x2a },
- { 0x2a, 0x0, 0x0 },
- { 0x2a, 0x0, 0x2a },
- { 0x2a, 0x2a, 0x0 },
- { 0x2a, 0x2a, 0x2a },
- { 0x0, 0x0, 0x15 },
- { 0x0, 0x0, 0x3f },
- { 0x0, 0x2a, 0x15 },
- { 0x0, 0x2a, 0x3f },
- { 0x2a, 0x0, 0x15 },
- { 0x2a, 0x0, 0x3f },
- { 0x2a, 0x2a, 0x15 },
- { 0x2a, 0x2a, 0x3f },
- { 0x0, 0x15, 0x0 },
- { 0x0, 0x15, 0x2a },
- { 0x0, 0x3f, 0x0 },
- { 0x0, 0x3f, 0x2a },
- { 0x2a, 0x15, 0x0 },
- { 0x2a, 0x15, 0x2a },
- { 0x2a, 0x3f, 0x0 },
- { 0x2a, 0x3f, 0x2a },
- { 0x0, 0x15, 0x15 },
- { 0x0, 0x15, 0x3f },
- { 0x0, 0x3f, 0x15 },
- { 0x0, 0x3f, 0x3f },
- { 0x2a, 0x15, 0x15 },
- { 0x2a, 0x15, 0x3f },
- { 0x2a, 0x3f, 0x15 },
- { 0x2a, 0x3f, 0x3f },
- { 0x15, 0x0, 0x0 },
- { 0x15, 0x0, 0x2a },
- { 0x15, 0x2a, 0x0 },
- { 0x15, 0x2a, 0x2a },
- { 0x3f, 0x0, 0x0 },
- { 0x3f, 0x0, 0x2a },
- { 0x3f, 0x2a, 0x0 },
- { 0x3f, 0x2a, 0x2a },
- { 0x15, 0x0, 0x15 },
- { 0x15, 0x0, 0x3f },
- { 0x15, 0x2a, 0x15 },
- { 0x15, 0x2a, 0x3f },
- { 0x3f, 0x0, 0x15 },
- { 0x3f, 0x0, 0x3f },
- { 0x3f, 0x2a, 0x15 },
- { 0x3f, 0x2a, 0x3f },
- { 0x15, 0x15, 0x0 },
- { 0x15, 0x15, 0x2a },
- { 0x15, 0x3f, 0x0 },
- { 0x15, 0x3f, 0x2a },
- { 0x3f, 0x15, 0x0 },
- { 0x3f, 0x15, 0x2a },
- { 0x3f, 0x3f, 0x0 },
- { 0x3f, 0x3f, 0x2a },
- { 0x15, 0x15, 0x15 },
- { 0x15, 0x15, 0x3f },
- { 0x15, 0x3f, 0x15 },
- { 0x15, 0x3f, 0x3f },
- { 0x3f, 0x15, 0x15 },
- { 0x3f, 0x15, 0x3f },
- { 0x3f, 0x3f, 0x15 },
- { 0x3f, 0x3f, 0x3f },
- { 0x39, 0xc, 0x5 },
- { 0x15, 0x2c, 0xf },
- { 0x26, 0x10, 0x3d },
- { 0x29, 0x29, 0x38 },
- { 0x4, 0x1a, 0xe },
- { 0x2, 0x1e, 0x3a },
- { 0x3c, 0x25, 0x33 },
- { 0x3c, 0xc, 0x2c },
- { 0x3f, 0x3, 0x2b },
- { 0x1c, 0x9, 0x13 },
- { 0x25, 0x2a, 0x35 },
- { 0x1e, 0xa, 0x38 },
- { 0x24, 0x8, 0x3 },
- { 0x3, 0xe, 0x36 },
- { 0xc, 0x6, 0x2a },
- { 0x26, 0x3, 0x32 },
- { 0x5, 0x2f, 0x33 },
- { 0x3c, 0x35, 0x2f },
- { 0x2d, 0x26, 0x3e },
- { 0xd, 0xa, 0x10 },
- { 0x25, 0x3c, 0x11 },
- { 0xd, 0x4, 0x2e },
- { 0x5, 0x19, 0x3e },
- { 0xc, 0x13, 0x34 },
- { 0x2b, 0x6, 0x24 },
- { 0x4, 0x3, 0xd },
- { 0x2f, 0x3c, 0xc },
- { 0x2a, 0x37, 0x1f },
- { 0xf, 0x12, 0x38 },
- { 0x38, 0xe, 0x2a },
- { 0x12, 0x2f, 0x19 },
- { 0x29, 0x2e, 0x31 },
- { 0x25, 0x13, 0x3e },
- { 0x33, 0x3e, 0x33 },
- { 0x1d, 0x2c, 0x25 },
- { 0x15, 0x15, 0x5 },
- { 0x32, 0x25, 0x39 },
- { 0x1a, 0x7, 0x1f },
- { 0x13, 0xe, 0x1d },
- { 0x36, 0x17, 0x34 },
- { 0xf, 0x15, 0x23 },
- { 0x2, 0x35, 0xd },
- { 0x15, 0x3f, 0xc },
- { 0x14, 0x2f, 0xf },
- { 0x19, 0x21, 0x3e },
- { 0x27, 0x11, 0x2f },
- { 0x38, 0x3f, 0x3c },
- { 0x36, 0x2d, 0x15 },
- { 0x16, 0x17, 0x2 },
- { 0x1, 0xa, 0x3d },
- { 0x1b, 0x11, 0x3f },
- { 0x21, 0x3c, 0xd },
- { 0x1a, 0x39, 0x3d },
- { 0x8, 0xe, 0xe },
- { 0x22, 0x21, 0x23 },
- { 0x1e, 0x30, 0x5 },
- { 0x1f, 0x22, 0x3d },
- { 0x1e, 0x2f, 0xa },
- { 0x0, 0x1c, 0xe },
- { 0x0, 0x1c, 0x15 },
- { 0x0, 0x1c, 0x1c },
- { 0x0, 0x15, 0x1c },
- { 0x0, 0xe, 0x1c },
- { 0x0, 0x7, 0x1c },
- { 0xe, 0xe, 0x1c },
- { 0x11, 0xe, 0x1c },
- { 0x15, 0xe, 0x1c },
- { 0x18, 0xe, 0x1c },
- { 0x1c, 0xe, 0x1c },
- { 0x1c, 0xe, 0x18 },
- { 0x1c, 0xe, 0x15 },
- { 0x1c, 0xe, 0x11 },
- { 0x1c, 0xe, 0xe },
- { 0x1c, 0x11, 0xe },
- { 0x1c, 0x15, 0xe },
- { 0x1c, 0x18, 0xe },
- { 0x1c, 0x1c, 0xe },
- { 0x18, 0x1c, 0xe },
- { 0x15, 0x1c, 0xe },
- { 0x11, 0x1c, 0xe },
- { 0xe, 0x1c, 0xe },
- { 0xe, 0x1c, 0x11 },
- { 0xe, 0x1c, 0x15 },
- { 0xe, 0x1c, 0x18 },
- { 0xe, 0x1c, 0x1c },
- { 0xe, 0x18, 0x1c },
- { 0xe, 0x15, 0x1c },
- { 0xe, 0x11, 0x1c },
- { 0x14, 0x14, 0x1c },
- { 0x16, 0x14, 0x1c },
- { 0x18, 0x14, 0x1c },
- { 0x1a, 0x14, 0x1c },
- { 0x1c, 0x14, 0x1c },
- { 0x1c, 0x14, 0x1a },
- { 0x1c, 0x14, 0x18 },
- { 0x1c, 0x14, 0x16 },
- { 0x1c, 0x14, 0x14 },
- { 0x1c, 0x16, 0x14 },
- { 0x1c, 0x18, 0x14 },
- { 0x1c, 0x1a, 0x14 },
- { 0x1c, 0x1c, 0x14 },
- { 0x1a, 0x1c, 0x14 },
- { 0x18, 0x1c, 0x14 },
- { 0x16, 0x1c, 0x14 },
- { 0x14, 0x1c, 0x14 },
- { 0x14, 0x1c, 0x16 },
- { 0x14, 0x1c, 0x18 },
- { 0x14, 0x1c, 0x1a },
- { 0x14, 0x1c, 0x1c },
- { 0x14, 0x1a, 0x1c },
- { 0x14, 0x18, 0x1c },
- { 0x14, 0x16, 0x1c },
- { 0x0, 0x0, 0x10 },
- { 0x4, 0x0, 0x10 },
- { 0x8, 0x0, 0x10 },
- { 0xc, 0x0, 0x10 },
- { 0x10, 0x0, 0x10 },
- { 0x10, 0x0, 0xc },
- { 0x10, 0x0, 0x8 },
- { 0x10, 0x0, 0x4 },
- { 0x10, 0x0, 0x0 },
- { 0x10, 0x4, 0x0 },
- { 0x10, 0x8, 0x0 },
- { 0x10, 0xc, 0x0 },
- { 0x10, 0x10, 0x0 },
- { 0xc, 0x10, 0x0 },
- { 0x8, 0x10, 0x0 },
- { 0x4, 0x10, 0x0 },
- { 0x0, 0x10, 0x0 },
- { 0x0, 0x10, 0x4 },
- { 0x0, 0x10, 0x8 },
- { 0x0, 0x10, 0xc },
- { 0x0, 0x10, 0x10 },
- { 0x0, 0xc, 0x10 },
- { 0x0, 0x8, 0x10 },
- { 0x0, 0x4, 0x10 },
- { 0x8, 0x8, 0x10 },
- { 0xa, 0x8, 0x10 },
- { 0xc, 0x8, 0x10 },
- { 0xe, 0x8, 0x10 },
- { 0x10, 0x8, 0x10 },
- { 0x10, 0x8, 0xe },
- { 0x10, 0x8, 0xc },
- { 0x10, 0x8, 0xa },
- { 0x10, 0x8, 0x8 },
- { 0x10, 0xa, 0x8 },
- { 0x10, 0xc, 0x8 },
- { 0x10, 0xe, 0x8 },
- { 0x10, 0x10, 0x8 },
- { 0xe, 0x10, 0x8 },
- { 0xc, 0x10, 0x8 },
- { 0xa, 0x10, 0x8 },
- { 0x8, 0x10, 0x8 },
- { 0x8, 0x10, 0xa },
- { 0x8, 0x10, 0xc },
- { 0x8, 0x10, 0xe },
- { 0x8, 0x10, 0x10 },
- { 0x8, 0xe, 0x10 },
- { 0x8, 0xc, 0x10 },
- { 0x8, 0xa, 0x10 },
- { 0xb, 0xb, 0x10 },
- { 0xc, 0xb, 0x10 },
- { 0xd, 0xb, 0x10 },
- { 0xf, 0xb, 0x10 },
- { 0x10, 0xb, 0x10 },
- { 0x10, 0xb, 0xf },
- { 0x10, 0xb, 0xd },
- { 0x10, 0xb, 0xc },
- { 0x10, 0xb, 0xb },
- { 0x10, 0xc, 0xb },
- { 0x10, 0xd, 0xb },
- { 0x10, 0xf, 0xb },
- { 0x10, 0x10, 0xb },
- { 0xf, 0x10, 0xb },
- { 0xd, 0x10, 0xb },
- { 0xc, 0x10, 0xb },
- { 0xb, 0x10, 0xb },
- { 0xb, 0x10, 0xc },
- { 0xb, 0x10, 0xd },
- { 0xb, 0x10, 0xf },
- { 0xb, 0x10, 0x10 },
- { 0xb, 0xf, 0x10 },
- { 0xb, 0xd, 0x10 },
- { 0xb, 0xc, 0x10 },
- { 0x0, 0x0, 0x0 },
- { 0x0, 0x0, 0x0 },
- { 0x0, 0x0, 0x0 },
- { 0x0, 0x0, 0x0 },
- { 0x0, 0x0, 0x0 },
- { 0x0, 0x0, 0x0 },
- { 0x0, 0x0, 0x0 }
-};
-
-unsigned char AC[21] = {
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07,
- 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
- 0x0C, 0x00, 0x0F, 0x08, 0x00};
-
-static int scanPCI(int start_slt);
-static int PCIVendor(int);
-#ifdef DEBUG
-static void printslots(void);
-#endif
-extern void puthex(unsigned long);
-extern void puts(const char *);
-static void unlockS3(void);
-
-static inline void
-outw(int port, unsigned short val)
-{
- outb(port, val >> 8);
- outb(port+1, val);
-}
-
-int
-vga_init(unsigned char *ISA_mem)
-{
- int slot;
- struct VgaRegs *VgaTextRegs;
-
- /* See if VGA already in TEXT mode - exit if so! */
- outb(0x3CE, 0x06);
- if ((inb(0x3CF) & 0x01) == 0){
- puts("VGA already in text mode\n");
- return 0;
- }
-
- /* If no VGA responding in text mode, then we have some work to do...
- */
- slot = -1;
- while((slot = scanPCI(slot)) > -1) { /* find video card in use */
- unlockVideo(slot); /* enable I/O to card */
- VgaTextRegs = GenVgaTextRegs;
-
- switch (PCIVendor(slot)) {
- default:
- break;
- case(S3Vendor):
- unlockS3();
- break;
-
- case(CirrusVendor):
- outw(0x3C4, 0x0612); /* unlock ext regs */
- outw(0x3C4, 0x0700); /* reset ext sequence mode */
- break;
-
- case(ParadiseVendor): /* IBM Portable 850 */
- outw(0x3ce, 0x0f05); /* unlock pardise registers */
- outw(0x3c4, 0x0648);
- outw(0x3d4, 0x2985);
- outw(0x3d4, 0x34a6);
- outb(0x3ce, 0x0b); /* disable linear addressing */
- outb(0x3cf, inb(0x3cf) & ~0x30);
- outw(0x3c4, 0x1400);
- outb(0x3ce, 0x0e); /* disable 256 color mode */
- outb(0x3cf, inb(0x3cf) & ~0x01);
- outb(0xd00, 0xff); /* enable auto-centering */
- if (!(inb(0xd01) & 0x03)) {
- outb(0x3d4, 0x33);
- outb(0x3d5, inb(0x3d5) & ~0x90);
- outb(0x3d4, 0x32);
- outb(0x3d5, inb(0x3d5) | 0x04);
- outw(0x3d4, 0x0250);
- outw(0x3d4, 0x07ba);
- outw(0x3d4, 0x0900);
- outw(0x3d4, 0x15e7);
- outw(0x3d4, 0x2a95);
- }
- outw(0x3d4, 0x34a0);
- break;
-
- #if 0 /* Untested - probably doesn't work */
- case(MatroxVendor):
- case(DiamondVendor):
- puts("VGA Chip Vendor ID: ");
- puthex(PCIVendor(slot));
- puts("\n");
- mdelay(1000);
- #endif
- };
-
- outw(0x3C4, 0x0120); /* disable video */
- setTextRegs(VgaTextRegs); /* initial register setup */
- setTextCLUT(0); /* load color lookup table */
- loadFont(ISA_mem); /* load font */
- setTextRegs(VgaTextRegs); /* reload registers */
- outw(0x3C4, 0x0100); /* re-enable video */
- clearVideoMemory();
-
- if (PCIVendor(slot) == S3Vendor) {
- outb(0x3c2, 0x63); /* MISC */
- } /* endif */
-
- #ifdef DEBUG
- printslots();
- mdelay(5000);
- #endif
-
- mdelay(1000); /* give time for the video monitor to come up */
- }
- return (1); /* 'CRT' I/O supported */
-}
-
-/*
- * Write to VGA Attribute registers.
- */
-void
-writeAttr(unsigned char index, unsigned char data, unsigned char videoOn)
-{
- unsigned char v;
- v = inb(0x3da); /* reset attr. address toggle */
- if (videoOn)
- outb(0x3c0, (index & 0x1F) | 0x20);
- else
- outb(0x3c0, (index & 0x1F));
- outb(0x3c0, data);
-}
-
-void
-setTextRegs(struct VgaRegs *svp)
-{
- int i;
-
- /*
- * saved settings
- */
- while( svp->io_port != ENDMK ) {
- outb(svp->io_port, svp->io_index);
- outb(svp->io_port+1, svp->io_value);
- svp++;
- }
-
- outb(0x3c2, 0x67); /* MISC */
- outb(0x3c6, 0xff); /* MASK */
-
- for ( i = 0; i < 0x10; i++)
- writeAttr(i, AC[i], 0); /* palette */
- writeAttr(0x10, 0x0c, 0); /* text mode */
- writeAttr(0x11, 0x00, 0); /* overscan color (border) */
- writeAttr(0x12, 0x0f, 0); /* plane enable */
- writeAttr(0x13, 0x08, 0); /* pixel panning */
- writeAttr(0x14, 0x00, 1); /* color select; video on */
-}
-
-void
-setTextCLUT(int shift)
-{
- int i;
-
- outb(0x3C6, 0xFF);
- i = inb(0x3C7);
- outb(0x3C8, 0);
- i = inb(0x3C7);
-
- for ( i = 0; i < 256; i++) {
- outb(0x3C9, TextCLUT[i].r << shift);
- outb(0x3C9, TextCLUT[i].g << shift);
- outb(0x3C9, TextCLUT[i].b << shift);
- }
-}
-
-void
-loadFont(unsigned char *ISA_mem)
-{
- int i, j;
- unsigned char *font_page = (unsigned char *) &ISA_mem[0xA0000];
-
- outb(0x3C2, 0x67);
- /*
- * Load font
- */
- i = inb(0x3DA); /* Reset Attr toggle */
-
- outb(0x3C0,0x30);
- outb(0x3C0, 0x01); /* graphics mode */
-
- outw(0x3C4, 0x0001); /* reset sequencer */
- outw(0x3C4, 0x0204); /* write to plane 2 */
- outw(0x3C4, 0x0406); /* enable plane graphics */
- outw(0x3C4, 0x0003); /* reset sequencer */
- outw(0x3CE, 0x0402); /* read plane 2 */
- outw(0x3CE, 0x0500); /* write mode 0, read mode 0 */
- outw(0x3CE, 0x0605); /* set graphics mode */
-
- for (i = 0; i < sizeof(font); i += 16) {
- for (j = 0; j < 16; j++) {
- __asm__ volatile("eieio");
- font_page[(2*i)+j] = font[i+j];
- }
- }
-}
-
-static void
-unlockS3(void)
-{
- int s3_device_id;
- outw(0x3d4, 0x3848);
- outw(0x3d4, 0x39a5);
- outb(0x3d4, 0x2d);
- s3_device_id = inb(0x3d5) << 8;
- outb(0x3d4, 0x2e);
- s3_device_id |= inb(0x3d5);
-
- if (s3_device_id != 0x8812) {
- /* From the S3 manual */
- outb(0x46E8, 0x10); /* Put into setup mode */
- outb(0x3C3, 0x10);
- outb(0x102, 0x01); /* Enable registers */
- outb(0x46E8, 0x08); /* Enable video */
- outb(0x3C3, 0x08);
- outb(0x4AE8, 0x00);
-
-#if 0
- outb(0x42E8, 0x80); /* Reset graphics engine? */
-#endif
-
- outb(0x3D4, 0x38); /* Unlock all registers */
- outb(0x3D5, 0x48);
- outb(0x3D4, 0x39);
- outb(0x3D5, 0xA5);
- outb(0x3D4, 0x40);
- outb(0x3D5, inb(0x3D5)|0x01);
- outb(0x3D4, 0x33);
- outb(0x3D5, inb(0x3D5)&~0x52);
- outb(0x3D4, 0x35);
- outb(0x3D5, inb(0x3D5)&~0x30);
- outb(0x3D4, 0x3A);
- outb(0x3D5, 0x00);
- outb(0x3D4, 0x53);
- outb(0x3D5, 0x00);
- outb(0x3D4, 0x31);
- outb(0x3D5, inb(0x3D5)&~0x4B);
- outb(0x3D4, 0x58);
-
- outb(0x3D5, 0);
-
- outb(0x3D4, 0x54);
- outb(0x3D5, 0x38);
- outb(0x3D4, 0x60);
- outb(0x3D5, 0x07);
- outb(0x3D4, 0x61);
- outb(0x3D5, 0x80);
- outb(0x3D4, 0x62);
- outb(0x3D5, 0xA1);
- outb(0x3D4, 0x69); /* High order bits for cursor address */
- outb(0x3D5, 0);
-
- outb(0x3D4, 0x32);
- outb(0x3D5, inb(0x3D5)&~0x10);
- } else {
- outw(0x3c4, 0x0806); /* IBM Portable 860 */
- outw(0x3c4, 0x1041);
- outw(0x3c4, 0x1128);
- outw(0x3d4, 0x4000);
- outw(0x3d4, 0x3100);
- outw(0x3d4, 0x3a05);
- outw(0x3d4, 0x6688);
- outw(0x3d4, 0x5800); /* disable linear addressing */
- outw(0x3d4, 0x4500); /* disable H/W cursor */
- outw(0x3c4, 0x5410); /* enable auto-centering */
- outw(0x3c4, 0x561f);
- outw(0x3c4, 0x1b80); /* lock DCLK selection */
- outw(0x3d4, 0x3900); /* lock S3 registers */
- outw(0x3d4, 0x3800);
- } /* endif */
-}
-
-/*
- * cursor() sets an offset (0-1999) into the 80x25 text area.
- */
-void
-cursor(int x, int y)
-{
- int pos = (y*cols)+x;
- outb(0x3D4, 14);
- outb(0x3D5, pos >> 8);
- outb(0x3D4, 15);
- outb(0x3D5, pos);
-}
-
-void
-clearVideoMemory(void)
-{
- int i, j;
- for (i = 0; i < lines; i++) {
- for (j = 0; j < cols; j++) {
- vidmem[((i*cols)+j)*2] = 0x20; /* fill with space character */
- vidmem[((i*cols)+j)*2+1] = 0x07; /* set bg & fg attributes */
- }
- }
-}
-
-/* ============ */
-
-
-#define NSLOTS 8
-#define NPCIREGS 5
-
-
-/*
- should use devfunc number/indirect method to be totally safe on
- all machines, this works for now on 3 slot Moto boxes
-*/
-
-struct PCI_ConfigInfo {
- unsigned long * config_addr;
- unsigned long regs[NPCIREGS];
-} PCI_slots [NSLOTS] = {
-
- { (unsigned long *)0x80808000, {0xDEADBEEF,} }, /* onboard */
- { (unsigned long *)0x80800800, {0xDEADBEEF,} }, /* onboard */
- { (unsigned long *)0x80801000, {0xDEADBEEF,} }, /* onboard */
- { (unsigned long *)0x80802000, {0xDEADBEEF,} }, /* onboard */
- { (unsigned long *)0x80804000, {0xDEADBEEF,} }, /* onboard */
- { (unsigned long *)0x80810000, {0xDEADBEEF,} }, /* slot A/1 */
- { (unsigned long *)0x80820000, {0xDEADBEEF,} }, /* slot B/2 */
- { (unsigned long *)0x80840000, {0xDEADBEEF,} } /* slot C/3 */
-};
-
-
-
-/*
- * The following code modifies the PCI Command register
- * to enable memory and I/O accesses.
- */
-void
-unlockVideo(int slot)
-{
- volatile unsigned char * ppci;
-
- ppci = (unsigned char * )PCI_slots[slot].config_addr;
- ppci[4] = 0x0003; /* enable memory and I/O accesses */
- ppci[0x10] = 0x00000; /* turn off memory mapping */
- ppci[0x11] = 0x00000; /* mem_base = 0 */
- ppci[0x12] = 0x00000;
- ppci[0x13] = 0x00000;
- __asm__ volatile("eieio");
-
- outb(0x3d4, 0x11);
- outb(0x3d5, 0x0e); /* unlock CR0-CR7 */
-}
-
-long
-SwapBytes(long lv) /* turn little endian into big indian long */
-{
- long t;
- t = (lv&0x000000FF) << 24;
- t |= (lv&0x0000FF00) << 8;
- t |= (lv&0x00FF0000) >> 8;
- t |= (lv&0xFF000000) >> 24;
- return(t);
-}
-
-
-#define DEVID 0
-#define CMD 1
-#define CLASS 2
-#define MEMBASE 4
-
-int
-scanPCI(int start_slt)
-{
- int slt, r;
- struct PCI_ConfigInfo *pslot;
- int theSlot = -1;
- int highVgaSlot = 0;
-
- for ( slt = start_slt + 1; slt < NSLOTS; slt++) {
- pslot = &PCI_slots[slt];
- for ( r = 0; r < NPCIREGS; r++) {
- pslot->regs[r] = SwapBytes ( pslot->config_addr[r] );
- }
- /* card in slot ? */
- if ( pslot->regs[DEVID] != 0xFFFFFFFF ) {
- /* VGA ? */
- if ( ((pslot->regs[CLASS] & 0xFFFFFF00) == 0x03000000) ||
- ((pslot->regs[CLASS] & 0xFFFFFF00) == 0x00010000)) {
- highVgaSlot = slt;
- /* did firmware enable it ? */
- if ( (pslot->regs[CMD] & 0x03) ) {
- theSlot = slt;
- break;
- }
- }
- }
- }
-
- return ( theSlot );
-}
-
-/* return Vendor ID of card in the slot */
-static
-int PCIVendor(int slotnum) {
- struct PCI_ConfigInfo *pslot;
-
- pslot = &PCI_slots[slotnum];
-
-return (pslot->regs[DEVID] & 0xFFFF);
-}
-
-#ifdef DEBUG
-static
-void printslots(void)
-{
- int i;
-#if 0
- struct PCI_ConfigInfo *pslot;
-#endif
- for(i=0; i < NSLOTS; i++) {
-#if 0
- pslot = &PCI_slots[i];
- printf("Slot: %d, Addr: %x, Vendor: %08x, Class: %08x\n",
- i, pslot->config_addr, pslot->regs[0], pslot->regs[2]);
-#else
- puts("PCI Slot number: "); puthex(i);
- puts(" Vendor ID: ");
- puthex(PCIVendor(i)); puts("\n");
-#endif
- }
-}
-#endif /* DEBUG */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.