11 *   Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.
42 *		Jason ported this file to u-boot to run the ATI video card
43 *		BIOS in u-boot. Removed some emulate functions such as the
55 /*------------------------- Global Variables ------------------------------*/
71 /*----------------------------- Implementation ----------------------------*/
75 addr    - Emulator memory address to convert
81 This function converts an emulator memory address in a 32-bit range to
89 		return (u8*)(_BE_env.biosmem_base + addr - 0xC0000);  in BE_memaddr()
95 		return (u8*)(_BE_env.busmem_base + addr - 0xA0000);  in BE_memaddr()
102 		    return (u8 *)_BE_env.busmem_base + addr - 0xA0000;  in BE_memaddr()
106 		/* Return a faked BIOS date string for non-x86 machines */  in BE_memaddr()
107 		debug_io("BE_memaddr - Returning BIOS date\n");  in BE_memaddr()
108 		return (u8 *)(BE_biosDate + addr - 0xFFFF5);  in BE_memaddr()
110 		/* Return system model identifier for non-x86 machines */  in BE_memaddr()
111 		debug_io("BE_memaddr - Returning model\n");  in BE_memaddr()
114 		/* Return system submodel identifier for non-x86 machines */  in BE_memaddr()
115 		debug_io("BE_memaddr - Returning submodel\n");  in BE_memaddr()
119 	else if (addr > M.mem_size - 1) {  in BE_memaddr()
129 addr    - Emulator memory address to read
150 addr    - Emulator memory address to read
172 addr    - Emulator memory address to read
178 Reads a 32-bit value from the emulator memory. We have three distinct memory
194 addr    - Emulator memory address to read
195 val     - Value to store
210 addr    - Emulator memory address to read
211 val     - Value to store
228 addr    - Emulator memory address to read
229 val     - Value to store
232 Writes a 32-bit value to emulator memory. We have three distinct memory
245 /* For Non-Intel machines we may need to emulate some I/O port accesses that
258 port    - Port to read from
259 type    - Type of access to perform
262 Performs an emulated read from the Standard VGA I/O ports. If the target
265 set NonVGA display modes such as on ATI hardware.
271 	debug_io("vga_inb.%04X -> ", (u16) port);  in VGA_inpb()
335 port    - Port to write to
336 type    - Type of access to perform
406 regOffset   - Offset into register space for non-DWORD accesses
407 value       - Value to write to register for PCI_WRITE_* operations
408 func        - Function to perform (PCIAccessRegFlags)
482 	     _BE_env.vgaInfo.pciInfo->slot.p.Function)  in BE_accessReg()
483 	    && (pciInfo.slot.p.Device == _BE_env.vgaInfo.pciInfo->slot.p.Device)  in BE_accessReg()
484 	    && (pciInfo.slot.p.Bus == _BE_env.vgaInfo.pciInfo->slot.p.Bus))  in BE_accessReg()
493 port    - Port to read from
494 type    - Type of access to perform
507 			return BE_accessReg(port - 0xCFC, 0, REG_READ_BYTE);  in PCI_inp()
512 			return BE_accessReg(port - 0xCFC, 0, REG_READ_WORD);  in PCI_inp()
526 port    - Port to write to
527 type    - Type of access to perform
538 			BE_accessReg(port - 0xCFC, val, REG_WRITE_BYTE);  in PCI_outp()
543 			BE_accessReg(port - 0xCFC, val, REG_WRITE_WORD);  in PCI_outp()
560 port    - Port to write to
566 Performs an emulated 8-bit read from an I/O port. We handle special cases
591 		DB(printf("WARN: INVALID inb.%04X -> %02X\n", (u16) port, val);)  in BE_inb()
596 		debug_io("inb.%04X -> ", (u16) port);  in BE_inb()
606 port    - Port to write to
612 Performs an emulated 16-bit read from an I/O port. We handle special cases
624 		DB(printf("WARN: Maybe INVALID inw.%04X -> %04X\n", (u16) port, val);)  in BE_inw()
629 		debug_io("inw.%04X -> ", (u16) port);  in BE_inw()
639 port    - Port to write to
645 Performs an emulated 32-bit read from an I/O port. We handle special cases
661 		debug_io("inl.%04X -> ", (u16) port);  in BE_inl()
671 port    - Port to write to
672 val     - Value to write to port
675 Performs an emulated 8-bit write to an I/O port. We handle special cases
693 		DB(printf("WARN:Maybe INVALID outb.%04X <- %02X\n", (u16) port, val);)  in BE_outb()
698 		debug_io("outb.%04X <- %02X", (u16) port, val);  in BE_outb()
706 port    - Port to write to
707 val     - Value to write to port
710 Performs an emulated 16-bit write to an I/O port. We handle special cases
723 		DB(printf("WARN: MAybe INVALID outw.%04X <- %04X\n", (u16)port,  in BE_outw()
729 		debug_io("outw.%04X <- %04X", (u16) port, val);  in BE_outw()
737 port    - Port to write to
738 val     - Value to write to port
741 Performs an emulated 32-bit write to an I/O port. We handle special cases
751 		DB(printf("WARN: INVALID outl.%04X <- %08X\n", (u16) port,val);)  in BE_outl()
756 		debug_io("outl.%04X <- %08X", (u16) port, val);  in BE_outl()