diff options
Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/biosemu')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/biosemu/besys.c | 408 | ||||
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/biosemu/bios.c | 250 | ||||
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/biosemu/biosemu.c | 445 | ||||
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/biosemu/biosemui.h | 79 | ||||
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/biosemu/makefile | 99 | ||||
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/biosemu/makefile.cross | 10 | ||||
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/biosemu/warmboot.c | 569 |
7 files changed, 0 insertions, 1860 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/biosemu/besys.c b/board/MAI/bios_emulator/scitech/src/biosemu/besys.c deleted file mode 100644 index 1512ce9bf9..0000000000 --- a/board/MAI/bios_emulator/scitech/src/biosemu/besys.c +++ /dev/null @@ -1,408 +0,0 @@ -/**************************************************************************** -* -* BIOS emulator and interface -* to Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: This file includes BIOS emulator I/O and memory access -* functions. -* -****************************************************************************/ - -#include "biosemui.h" - -/*------------------------------- Macros ----------------------------------*/ - -/* Macros to read and write values to x86 bus memory. Replace these as - * necessary if you need to do something special to access memory over - * the bus on a particular processor family. - */ - -#define readb(base,off) *((u8*)((u32)(base) + (off))) -#define readw(base,off) *((u16*)((u32)(base) + (off))) -#define readl(base,off) *((u32*)((u32)(base) + (off))) -#define writeb(v,base,off) *((u8*)((u32)(base) + (off))) = (v) -#define writew(v,base,off) *((u16*)((u32)(base) + (off))) = (v) -#define writel(v,base,off) *((u32*)((u32)(base) + (off))) = (v) - -/*----------------------------- Implementation ----------------------------*/ - -#ifdef DEBUG -# define DEBUG_MEM() (M.x86.debug & DEBUG_MEM_TRACE_F) -#else -# define DEBUG_MEM() -#endif - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Byte value read from emulator memory. - -REMARKS: -Reads a byte value from the emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -u8 X86API BE_rdb( - u32 addr) -{ - u8 val = 0; - - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { - val = *(u8*)(_BE_env.biosmem_base + addr - 0xC0000); - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { - val = readb(_BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size - 1) { -DB( printk("mem_read: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { - val = *(u8*)(M.mem_base + addr); - } -DB( if (DEBUG_MEM()) - printk("%#08x 1 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Word value read from emulator memory. - -REMARKS: -Reads a word value from the emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -u16 X86API BE_rdw( - u32 addr) -{ - u16 val = 0; - - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - addr -= 0xC0000; - val = ( *(u8*)(_BE_env.biosmem_base + addr) | - (*(u8*)(_BE_env.biosmem_base + addr + 1) << 8)); - } - else -#endif - val = *(u16*)(_BE_env.biosmem_base + addr - 0xC0000); - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - addr -= 0xA0000; - val = ( readb(_BE_env.busmem_base, addr) | - (readb(_BE_env.busmem_base, addr + 1) << 8)); - } - else -#endif - val = readw(_BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size - 2) { -DB( printk("mem_read: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - val = ( *(u8*)(M.mem_base + addr) | - (*(u8*)(M.mem_base + addr + 1) << 8)); - } - else -#endif - val = *(u16*)(M.mem_base + addr); - } -DB( if (DEBUG_MEM()) - printk("%#08x 2 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read - -RETURNS: -Long value read from emulator memory. - -REMARKS: -Reads a long value from the emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -u32 X86API BE_rdl( - u32 addr) -{ - u32 val = 0; - - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x3) { - addr -= 0xC0000; - val = ( *(u8*)(_BE_env.biosmem_base + addr + 0) | - (*(u8*)(_BE_env.biosmem_base + addr + 1) << 8) | - (*(u8*)(_BE_env.biosmem_base + addr + 2) << 16) | - (*(u8*)(_BE_env.biosmem_base + addr + 3) << 24)); - } - else -#endif - val = *(u32*)(_BE_env.biosmem_base + addr - 0xC0000); - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x3) { - addr -= 0xA0000; - val = ( readb(_BE_env.busmem_base, addr) | - (readb(_BE_env.busmem_base, addr + 1) << 8) | - (readb(_BE_env.busmem_base, addr + 2) << 16) | - (readb(_BE_env.busmem_base, addr + 3) << 24)); - } - else -#endif - val = readl(_BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size - 4) { -DB( printk("mem_read: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { -#ifdef __BIG_ENDIAN__ - if (addr & 0x3) { - val = ( *(u8*)(M.mem_base + addr + 0) | - (*(u8*)(M.mem_base + addr + 1) << 8) | - (*(u8*)(M.mem_base + addr + 2) << 16) | - (*(u8*)(M.mem_base + addr + 3) << 24)); - } - else -#endif - val = *(u32*)(M.mem_base + addr); - } -DB( if (DEBUG_MEM()) - printk("%#08x 4 -> %#x\n", addr, val);) - return val; -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a byte value to emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -void X86API BE_wrb( - u32 addr, - u8 val) -{ -DB( if (DEBUG_MEM()) - printk("%#08x 1 <- %#x\n", addr, val);) - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { - *(u8*)(_BE_env.biosmem_base + addr - 0xC0000) = val; - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { - writeb(val, _BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size-1) { -DB( printk("mem_write: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { - *(u8*)(M.mem_base + addr) = val; - } -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a word value to emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -void X86API BE_wrw( - u32 addr, - u16 val) -{ -DB( if (DEBUG_MEM()) - printk("%#08x 2 <- %#x\n", addr, val);) - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - addr -= 0xC0000; - *(u8*)(_BE_env.biosmem_base + addr + 0) = (val >> 0) & 0xff; - *(u8*)(_BE_env.biosmem_base + addr + 1) = (val >> 8) & 0xff; - } - else -#endif - *(u16*)(_BE_env.biosmem_base + addr - 0xC0000) = val; - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - addr -= 0xA0000; - writeb(val >> 0, _BE_env.busmem_base, addr); - writeb(val >> 8, _BE_env.busmem_base, addr + 1); - } - else -#endif - writew(val, _BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size-2) { -DB( printk("mem_write: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - *(u8*)(M.mem_base + addr + 0) = (val >> 0) & 0xff; - *(u8*)(M.mem_base + addr + 1) = (val >> 8) & 0xff; - } - else -#endif - *(u16*)(M.mem_base + addr) = val; - } -} - -/**************************************************************************** -PARAMETERS: -addr - Emulator memory address to read -val - Value to store - -REMARKS: -Writes a long value to emulator memory. We have three distinct memory -regions that are handled differently, which this function handles. -****************************************************************************/ -void X86API BE_wrl( - u32 addr, - u32 val) -{ -DB( if (DEBUG_MEM()) - printk("%#08x 4 <- %#x\n", addr, val);) - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - addr -= 0xC0000; - *(u8*)(M.mem_base + addr + 0) = (val >> 0) & 0xff; - *(u8*)(M.mem_base + addr + 1) = (val >> 8) & 0xff; - *(u8*)(M.mem_base + addr + 2) = (val >> 16) & 0xff; - *(u8*)(M.mem_base + addr + 3) = (val >> 24) & 0xff; - } - else -#endif - *(u32*)(M.mem_base + addr - 0xC0000) = val; - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { -#ifdef __BIG_ENDIAN__ - if (addr & 0x3) { - addr -= 0xA0000; - writeb(val >> 0, _BE_env.busmem_base, addr); - writeb(val >> 8, _BE_env.busmem_base, addr + 1); - writeb(val >> 16, _BE_env.busmem_base, addr + 1); - writeb(val >> 24, _BE_env.busmem_base, addr + 1); - } - else -#endif - writel(val, _BE_env.busmem_base, addr - 0xA0000); - } - else if (addr > M.mem_size-4) { -DB( printk("mem_write: address %#lx out of range!\n", addr);) - HALT_SYS(); - } - else { -#ifdef __BIG_ENDIAN__ - if (addr & 0x1) { - *(u8*)(M.mem_base + addr + 0) = (val >> 0) & 0xff; - *(u8*)(M.mem_base + addr + 1) = (val >> 8) & 0xff; - *(u8*)(M.mem_base + addr + 2) = (val >> 16) & 0xff; - *(u8*)(M.mem_base + addr + 3) = (val >> 24) & 0xff; - } - else -#endif - *(u32*)(M.mem_base + addr) = val; - } -} - -/* Debug functions to do ISA/PCI bus port I/O */ - -#ifdef DEBUG -#define DEBUG_IO() (M.x86.debug & DEBUG_IO_TRACE_F) - -u8 X86API BE_inb(int port) -{ - u8 val = PM_inpb(port); - if (DEBUG_IO()) - printk("%04X:%04X: inb.%04X -> %02X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - return val; -} - -u16 X86API BE_inw(int port) -{ - u16 val = PM_inpw(port); - if (DEBUG_IO()) - printk("%04X:%04X: inw.%04X -> %04X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - return val; -} - -u32 X86API BE_inl(int port) -{ - u32 val = PM_inpd(port); - if (DEBUG_IO()) - printk("%04X:%04X: inl.%04X -> %08X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - return val; -} - -void X86API BE_outb(int port, u8 val) -{ - if (DEBUG_IO()) - printk("%04X:%04X: outb.%04X <- %02X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - PM_outpb(port,val); -} - -void X86API BE_outw(int port, u16 val) -{ - if (DEBUG_IO()) - printk("%04X:%04X: outw.%04X <- %04X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - PM_outpw(port,val); -} - -void X86API BE_outl(int port, u32 val) -{ - if (DEBUG_IO()) - printk("%04X:%04X: outl.%04X <- %08X\n",M.x86.saved_cs, M.x86.saved_ip, (ushort)port, val); - PM_outpd(port,val); -} -#endif diff --git a/board/MAI/bios_emulator/scitech/src/biosemu/bios.c b/board/MAI/bios_emulator/scitech/src/biosemu/bios.c deleted file mode 100644 index c0f4a4b18e..0000000000 --- a/board/MAI/bios_emulator/scitech/src/biosemu/bios.c +++ /dev/null @@ -1,250 +0,0 @@ -/**************************************************************************** -* -* BIOS emulator and interface -* to Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Module implementing the BIOS specific functions. -* -****************************************************************************/ - -#include "biosemui.h" - -/*----------------------------- Implementation ----------------------------*/ - -/**************************************************************************** -PARAMETERS: -intno - Interrupt number being serviced - -REMARKS: -Handler for undefined interrupts. -****************************************************************************/ -static void X86API undefined_intr( - int intno) -{ - if (BE_rdw(intno * 4 + 2) == BIOS_SEG) - printk("biosEmu: undefined interrupt %xh called!\n",intno); - else - X86EMU_prepareForInt(intno); -} - -/**************************************************************************** -PARAMETERS: -intno - Interrupt number being serviced - -REMARKS: -This function handles the default system BIOS Int 10h (the default is stored -in the Int 42h vector by the system BIOS at bootup). We only need to handle -a small number of special functions used by the BIOS during POST time. -****************************************************************************/ -static void X86API int42( - int intno) -{ - if (M.x86.R_AH == 0x12 && M.x86.R_BL == 0x32) { - if (M.x86.R_AL == 0) { - /* Enable CPU accesses to video memory */ - PM_outpb(0x3c2, PM_inpb(0x3cc) | (u8)0x02); - return; - } - else if (M.x86.R_AL == 1) { - /* Disable CPU accesses to video memory */ - PM_outpb(0x3c2, PM_inpb(0x3cc) & (u8)~0x02); - return; - } -#ifdef DEBUG - else { - printk("biosEmu/bios.int42: unknown function AH=0x12, BL=0x32, AL=%#02x\n",M.x86.R_AL); - } -#endif - } -#ifdef DEBUG - else { - printk("biosEmu/bios.int42: unknown function AH=%#02x, AL=%#02x, BL=%#02x\n",M.x86.R_AH, M.x86.R_AL, M.x86.R_BL); - } -#endif -} - -/**************************************************************************** -PARAMETERS: -intno - Interrupt number being serviced - -REMARKS: -This function handles the default system BIOS Int 10h. If the POST code -has not yet re-vectored the Int 10h BIOS interrupt vector, we handle this -by simply calling the int42 interrupt handler above. Very early in the -BIOS POST process, the vector gets replaced and we simply let the real -mode interrupt handler process the interrupt. -****************************************************************************/ -static void X86API int10( - int intno) -{ - if (BE_rdw(intno * 4 + 2) == BIOS_SEG) - int42(intno); - else - X86EMU_prepareForInt(intno); -} - -/* Result codes returned by the PCI BIOS */ - -#define SUCCESSFUL 0x00 -#define FUNC_NOT_SUPPORT 0x81 -#define BAD_VENDOR_ID 0x83 -#define DEVICE_NOT_FOUND 0x86 -#define BAD_REGISTER_NUMBER 0x87 -#define SET_FAILED 0x88 -#define BUFFER_TOO_SMALL 0x89 - -/**************************************************************************** -PARAMETERS: -intno - Interrupt number being serviced - -REMARKS: -This function handles the default Int 1Ah interrupt handler for the real -mode code, which provides support for the PCI BIOS functions. Since we only -want to allow the real mode BIOS code *only* see the PCI config space for -its own device, we only return information for the specific PCI config -space that we have passed in to the init function. This solves problems -when using the BIOS to warm boot a secondary adapter when there is an -identical adapter before it on the bus (some BIOS'es get confused in this -case). -****************************************************************************/ -static void X86API int1A( - unused) -{ - u16 pciSlot; - - /* Fail if no PCI device information has been registered */ - if (!_BE_env.vgaInfo.pciInfo) - return; - pciSlot = (u16)(_BE_env.vgaInfo.pciInfo->slot.i >> 8); - switch (M.x86.R_AX) { - case 0xB101: /* PCI bios present? */ - M.x86.R_AL = 0x00; /* no config space/special cycle generation support */ - M.x86.R_EDX = 0x20494350; /* " ICP" */ - M.x86.R_BX = 0x0210; /* Version 2.10 */ - M.x86.R_CL = 0; /* Max bus number in system */ - CLEAR_FLAG(F_CF); - break; - case 0xB102: /* Find PCI device */ - M.x86.R_AH = DEVICE_NOT_FOUND; - if (M.x86.R_DX == _BE_env.vgaInfo.pciInfo->VendorID && - M.x86.R_CX == _BE_env.vgaInfo.pciInfo->DeviceID && - M.x86.R_SI == 0) { - M.x86.R_AH = SUCCESSFUL; - M.x86.R_BX = pciSlot; - } - CONDITIONAL_SET_FLAG((M.x86.R_AH != SUCCESSFUL), F_CF); - break; - case 0xB103: /* Find PCI class code */ - M.x86.R_AH = DEVICE_NOT_FOUND; - if (M.x86.R_CL == _BE_env.vgaInfo.pciInfo->Interface && - M.x86.R_CH == _BE_env.vgaInfo.pciInfo->SubClass && - (u8)(M.x86.R_ECX >> 16) == _BE_env.vgaInfo.pciInfo->BaseClass) { - M.x86.R_AH = SUCCESSFUL; - M.x86.R_BX = pciSlot; - } - CONDITIONAL_SET_FLAG((M.x86.R_AH != SUCCESSFUL), F_CF); - break; - case 0xB108: /* Read configuration byte */ - M.x86.R_AH = BAD_REGISTER_NUMBER; - if (M.x86.R_BX == pciSlot) { - M.x86.R_AH = SUCCESSFUL; - M.x86.R_CL = (u8)PCI_accessReg(M.x86.R_DI,0,PCI_READ_BYTE,_BE_env.vgaInfo.pciInfo); - } - CONDITIONAL_SET_FLAG((M.x86.R_AH != SUCCESSFUL), F_CF); - break; - case 0xB109: /* Read configuration word */ - M.x86.R_AH = BAD_REGISTER_NUMBER; - if (M.x86.R_BX == pciSlot) { - M.x86.R_AH = SUCCESSFUL; - M.x86.R_CX = (u16)PCI_accessReg(M.x86.R_DI,0,PCI_READ_WORD,_BE_env.vgaInfo.pciInfo); - } - CONDITIONAL_SET_FLAG((M.x86.R_AH != SUCCESSFUL), F_CF); - break; - case 0xB10A: /* Read configuration dword */ - M.x86.R_AH = BAD_REGISTER_NUMBER; - if (M.x86.R_BX == pciSlot) { - M.x86.R_AH = SUCCESSFUL; - M.x86.R_ECX = (u32)PCI_accessReg(M.x86.R_DI,0,PCI_READ_DWORD,_BE_env.vgaInfo.pciInfo); - } - CONDITIONAL_SET_FLAG((M.x86.R_AH != SUCCESSFUL), F_CF); - break; - case 0xB10B: /* Write configuration byte */ - M.x86.R_AH = BAD_REGISTER_NUMBER; - if (M.x86.R_BX == pciSlot) { - M.x86.R_AH = SUCCESSFUL; - PCI_accessReg(M.x86.R_DI,M.x86.R_CL,PCI_WRITE_BYTE,_BE_env.vgaInfo.pciInfo); - } - CONDITIONAL_SET_FLAG((M.x86.R_AH != SUCCESSFUL), F_CF); - break; - case 0xB10C: /* Write configuration word */ - M.x86.R_AH = BAD_REGISTER_NUMBER; - if (M.x86.R_BX == pciSlot) { - M.x86.R_AH = SUCCESSFUL; - PCI_accessReg(M.x86.R_DI,M.x86.R_CX,PCI_WRITE_WORD,_BE_env.vgaInfo.pciInfo); - } - CONDITIONAL_SET_FLAG((M.x86.R_AH != SUCCESSFUL), F_CF); - break; - case 0xB10D: /* Write configuration dword */ - M.x86.R_AH = BAD_REGISTER_NUMBER; - if (M.x86.R_BX == pciSlot) { - M.x86.R_AH = SUCCESSFUL; - PCI_accessReg(M.x86.R_DI,M.x86.R_ECX,PCI_WRITE_DWORD,_BE_env.vgaInfo.pciInfo); - } - CONDITIONAL_SET_FLAG((M.x86.R_AH != SUCCESSFUL), F_CF); - break; - default: - printk("biosEmu/bios.int1a: unknown function AX=%#04x\n", M.x86.R_AX); - } -} - -/**************************************************************************** -REMARKS: -This function initialises the BIOS emulation functions for the specific -PCI display device. We insulate the real mode BIOS from any other devices -on the bus, so that it will work correctly thinking that it is the only -device present on the bus (ie: avoiding any adapters present in from of -the device we are trying to control). -****************************************************************************/ -void _BE_bios_init( - u32 *intrTab) -{ - int i; - X86EMU_intrFuncs bios_intr_tab[256]; - - for (i = 0; i < 256; ++i) { - intrTab[i] = BIOS_SEG << 16; - bios_intr_tab[i] = undefined_intr; - } - bios_intr_tab[0x10] = int10; - bios_intr_tab[0x1A] = int1A; - bios_intr_tab[0x42] = int42; - X86EMU_setupIntrFuncs(bios_intr_tab); -} diff --git a/board/MAI/bios_emulator/scitech/src/biosemu/biosemu.c b/board/MAI/bios_emulator/scitech/src/biosemu/biosemu.c deleted file mode 100644 index 0052709cc6..0000000000 --- a/board/MAI/bios_emulator/scitech/src/biosemu/biosemu.c +++ /dev/null @@ -1,445 +0,0 @@ -/**************************************************************************** -* -* BIOS emulator and interface -* to Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Module implementing the system specific functions. This -* module is always compiled and linked in the OS depedent -* libraries, and never in a binary portable driver. -* -****************************************************************************/ - -#include "biosemui.h" -#include <string.h> -#include <stdlib.h> - -/*------------------------- Global Variables ------------------------------*/ - -BE_sysEnv _BE_env; -#ifdef __DRIVER__ -PM_imports _VARAPI _PM_imports; -#endif -static X86EMU_memFuncs _BE_mem = { - BE_rdb, - BE_rdw, - BE_rdl, - BE_wrb, - BE_wrw, - BE_wrl, - }; -#ifdef DEBUG -static X86EMU_pioFuncs _BE_pio = { - BE_inb, - BE_inw, - BE_inl, - BE_outb, - BE_outw, - BE_outl, - }; -#else -static X86EMU_pioFuncs _BE_pio = { - (void*)PM_inpb, - (void*)PM_inpw, - (void*)PM_inpd, - (void*)PM_outpb, - (void*)PM_outpw, - (void*)PM_outpd, - }; -#endif - -/*-------------------------- Implementation -------------------------------*/ - -#define OFF(addr) (u16)(((addr) >> 0) & 0xffff) -#define SEG(addr) (u16)(((addr) >> 4) & 0xf000) - -/**************************************************************************** -PARAMETERS: -debugFlags - Flags to enable debugging options (debug builds only) -memSize - Amount of memory to allocate for real mode machine -info - Pointer to default VGA device information - -REMARKS: -This functions initialises the BElib, and uses the passed in -BIOS image as the BIOS that is used and emulated at 0xC0000. -****************************************************************************/ -ibool PMAPI BE_init( - u32 debugFlags, - int memSize, - BE_VGAInfo *info) -{ -#ifndef __DRIVER__ - PM_init(); -#endif - memset(&M,0,sizeof(M)); - if (memSize < 20480) - PM_fatalError("Emulator requires at least 20Kb of memory!\n"); - if ((M.mem_base = (unsigned long)malloc(memSize)) == NULL) - PM_fatalError("Out of memory!"); - M.mem_size = memSize; - _BE_env.busmem_base = (ulong)PM_mapPhysicalAddr(0xA0000,0x5FFFF,true); - M.x86.debug = debugFlags; - _BE_bios_init((u32*)info->LowMem); - X86EMU_setupMemFuncs(&_BE_mem); - X86EMU_setupPioFuncs(&_BE_pio); - BE_setVGA(info); - return true; -} - -/**************************************************************************** -PARAMETERS: -debugFlags - Flags to enable debugging options (debug builds only) - -REMARKS: -This function allows the application to enable logging and debug flags -on a function call basis, so we can specifically enable logging only -for specific functions that are causing problems in debug mode. -****************************************************************************/ -void PMAPI BE_setDebugFlags( - u32 debugFlags) -{ - M.x86.debug = debugFlags; -} - -/**************************************************************************** -PARAMETERS: -info - Pointer to VGA device information to make current - -REMARKS: -This function sets the VGA BIOS functions in the emulator to point to the -specific VGA BIOS in use. This includes swapping the BIOS interrupt -vectors, BIOS image and BIOS data area to the new BIOS. This allows the -real mode BIOS to be swapped without resetting the entire emulator. -****************************************************************************/ -void PMAPI BE_setVGA( - BE_VGAInfo *info) -{ - _BE_env.vgaInfo.pciInfo = info->pciInfo; - _BE_env.vgaInfo.BIOSImage = info->BIOSImage; - if (info->BIOSImage) { - _BE_env.biosmem_base = (ulong)info->BIOSImage; - _BE_env.biosmem_limit = 0xC0000 + info->BIOSImageLen-1; - } - else { - _BE_env.biosmem_base = _BE_env.busmem_base + 0x20000; - _BE_env.biosmem_limit = 0xC7FFF; - } - if (*((u32*)info->LowMem) == 0) - _BE_bios_init((u32*)info->LowMem); - memcpy((u8*)M.mem_base,info->LowMem,sizeof(info->LowMem)); -} - -/**************************************************************************** -PARAMETERS: -info - Pointer to VGA device information to retrieve current - -REMARKS: -This function returns the VGA BIOS functions currently active in the -emulator, so they can be restored at a later date. -****************************************************************************/ -void PMAPI BE_getVGA( - BE_VGAInfo *info) -{ - info->pciInfo = _BE_env.vgaInfo.pciInfo; - info->BIOSImage = _BE_env.vgaInfo.BIOSImage; - memcpy(info->LowMem,(u8*)M.mem_base,sizeof(info->LowMem)); -} - -/**************************************************************************** -PARAMETERS: -r_seg - Segment for pointer to convert -r_off - Offset for pointer to convert - -REMARKS: -This function maps a real mode pointer in the emulator memory to a protected -mode pointer that can be used to directly access the memory. - -NOTE: The memory is *always* in little endian format, son on non-x86 - systems you will need to do endian translations to access this - memory. -****************************************************************************/ -void * PMAPI BE_mapRealPointer( - uint r_seg, - uint r_off) -{ - u32 addr = ((u32)r_seg << 4) + r_off; - - if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) { - return (void*)(_BE_env.biosmem_base + addr - 0xC0000); - } - else if (addr >= 0xA0000 && addr <= 0xFFFFF) { - return (void*)(_BE_env.busmem_base + addr - 0xA0000); - } - return (void*)(M.mem_base + addr); -} - -/**************************************************************************** -PARAMETERS: -len - Return the length of the VESA buffer -rseg - Place to store VESA buffer segment -roff - Place to store VESA buffer offset - -REMARKS: -This function returns the address of the VESA transfer buffer in real -mode emulator memory. The VESA transfer buffer is always 1024 bytes long, -and located at 15Kb into the start of the real mode memory (16Kb is where -we put the real mode code we execute for issuing interrupts). - -NOTE: The memory is *always* in little endian format, son on non-x86 - systems you will need to do endian translations to access this - memory. -****************************************************************************/ -void * PMAPI BE_getVESABuf( - uint *len, - uint *rseg, - uint *roff) -{ - *len = 1024; - *rseg = SEG(0x03C00); - *roff = OFF(0x03C00); - return (void*)(M.mem_base + ((u32)*rseg << 4) + *roff); -} - -/**************************************************************************** -REMARKS: -Cleans up and exits the emulator. -****************************************************************************/ -void PMAPI BE_exit(void) -{ - free((void*)M.mem_base); - PM_freePhysicalAddr((void*)_BE_env.busmem_base,0x5FFFF); -} - -/**************************************************************************** -PARAMETERS: -seg - Segment of code to call -off - Offset of code to call -regs - Real mode registers to load -sregs - Real mode segment registers to load - -REMARKS: -This functions calls a real mode far function at the specified address, -and loads all the x86 registers from the passed in registers structure. -On exit the registers returned from the call are returned in the same -structures. -****************************************************************************/ -void PMAPI BE_callRealMode( - uint seg, - uint off, - RMREGS *regs, - RMSREGS *sregs) -{ - M.x86.R_EAX = regs->e.eax; - M.x86.R_EBX = regs->e.ebx; - M.x86.R_ECX = regs->e.ecx; - M.x86.R_EDX = regs->e.edx; - M.x86.R_ESI = regs->e.esi; - M.x86.R_EDI = regs->e.edi; - M.x86.R_DS = sregs->ds; - M.x86.R_ES = sregs->es; - M.x86.R_FS = sregs->fs; - M.x86.R_GS = sregs->gs; - M.x86.R_CS = (u16)seg; - M.x86.R_IP = (u16)off; - M.x86.R_SS = SEG(M.mem_size - 1); - M.x86.R_SP = OFF(M.mem_size - 1); - X86EMU_exec(); - regs->e.cflag = M.x86.R_EFLG & F_CF; - regs->e.eax = M.x86.R_EAX; - regs->e.ebx = M.x86.R_EBX; - regs->e.ecx = M.x86.R_ECX; - regs->e.edx = M.x86.R_EDX; - regs->e.esi = M.x86.R_ESI; - regs->e.edi = M.x86.R_EDI; - sregs->ds = M.x86.R_DS; - sregs->es = M.x86.R_ES; - sregs->fs = M.x86.R_FS; - sregs->gs = M.x86.R_GS; -} - -/**************************************************************************** -PARAMETERS: -intno - Interrupt number to execute -in - Real mode registers to load -out - Place to store resulting real mode registers - -REMARKS: -This functions calls a real mode interrupt function at the specified address, -and loads all the x86 registers from the passed in registers structure. -On exit the registers returned from the call are returned in out stucture. -****************************************************************************/ -int PMAPI BE_int86( - int intno, - RMREGS *in, - RMREGS *out) -{ - M.x86.R_EAX = in->e.eax; - M.x86.R_EBX = in->e.ebx; - M.x86.R_ECX = in->e.ecx; - M.x86.R_EDX = in->e.edx; - M.x86.R_ESI = in->e.esi; - M.x86.R_EDI = in->e.edi; - ((u8*)M.mem_base)[0x4000] = 0xCD; - ((u8*)M.mem_base)[0x4001] = (u8)intno; - ((u8*)M.mem_base)[0x4002] = 0xC3; - M.x86.R_CS = SEG(0x04000); - M.x86.R_IP = OFF(0x04000); - M.x86.R_SS = SEG(M.mem_size - 1); - M.x86.R_SP = OFF(M.mem_size - 1); - X86EMU_exec(); - out->e.cflag = M.x86.R_EFLG & F_CF; - out->e.eax = M.x86.R_EAX; - out->e.ebx = M.x86.R_EBX; - out->e.ecx = M.x86.R_ECX; - out->e.edx = M.x86.R_EDX; - out->e.esi = M.x86.R_ESI; - out->e.edi = M.x86.R_EDI; - return out->x.ax; -} - -/**************************************************************************** -PARAMETERS: -intno - Interrupt number to execute -in - Real mode registers to load -out - Place to store resulting real mode registers -sregs - Real mode segment registers to load - -REMARKS: -This functions calls a real mode interrupt function at the specified address, -and loads all the x86 registers from the passed in registers structure. -On exit the registers returned from the call are returned in out stucture. -****************************************************************************/ -int PMAPI BE_int86x( - int intno, - RMREGS *in, - RMREGS *out, - RMSREGS *sregs) -{ - M.x86.R_EAX = in->e.eax; - M.x86.R_EBX = in->e.ebx; - M.x86.R_ECX = in->e.ecx; - M.x86.R_EDX = in->e.edx; - M.x86.R_ESI = in->e.esi; - M.x86.R_EDI = in->e.edi; - M.x86.R_DS = sregs->ds; - M.x86.R_ES = sregs->es; - M.x86.R_FS = sregs->fs; - M.x86.R_GS = sregs->gs; - ((u8*)M.mem_base)[0x4000] = 0xCD; - ((u8*)M.mem_base)[0x4001] = (u8)intno; - ((u8*)M.mem_base)[0x4002] = 0xC3; - M.x86.R_CS = SEG(0x04000); - M.x86.R_IP = OFF(0x04000); - M.x86.R_SS = SEG(M.mem_size - 1); - M.x86.R_SP = OFF(M.mem_size - 1); - X86EMU_exec(); - out->e.cflag = M.x86.R_EFLG & F_CF; - out->e.eax = M.x86.R_EAX; - out->e.ebx = M.x86.R_EBX; - out->e.ecx = M.x86.R_ECX; - out->e.edx = M.x86.R_EDX; - out->e.esi = M.x86.R_ESI; - out->e.edi = M.x86.R_EDI; - sregs->ds = M.x86.R_DS; - sregs->es = M.x86.R_ES; - sregs->fs = M.x86.R_FS; - sregs->gs = M.x86.R_GS; - return out->x.ax; -} - -#ifdef __DRIVER__ - -/**************************************************************************** -REMARKS: -Empty log function for binary portable DLL. The BPD is compiled without -debug information, so very little is logged anyway so it is simpler this -way. -****************************************************************************/ -void printk(const char *msg, ...) -{ -} - -/**************************************************************************** -REMARKS: -Fatal error handler called when a non-imported function is called by the -driver. We leave this to a runtime error so that older applications and -shell drivers will work with newer bpd drivers provided no newer functions -are required by the driver itself. If they are, the application or shell -driver needs to be recompiled. -****************************************************************************/ -static void _PM_fatalErrorHandler(void) -{ - PM_fatalError("Unsupported PM_imports import function called! Please re-compile!\n"); -} - -/**************************************************************************** -PARAMETERS: -beImp - BE library imports -beImp - Generic emulator imports - -RETURNS: -Pointer to exported function list - -REMARKS: -This function initialises the BIOS emulator library and returns the list of -loader library exported functions. -{secret} -****************************************************************************/ -BE_exports * _CEXPORT BE_initLibrary( - PM_imports *pmImp) -{ - static BE_exports _BE_exports = { - sizeof(BE_exports), - BE_init, - BE_setVGA, - BE_getVGA, - BE_mapRealPointer, - BE_getVESABuf, - BE_callRealMode, - BE_int86, - BE_int86x, - NULL, - BE_exit, - }; - int i,max; - ulong *p; - - /* Initialize all default imports to point to fatal error handler */ - /* for upwards compatibility. */ - max = sizeof(_PM_imports)/sizeof(BE_initLibrary_t); - for (i = 0,p = (ulong*)&_PM_imports; i < max; i++) - *p++ = (ulong)_PM_fatalErrorHandler; - - /* Now copy all our imported functions */ - memcpy(&_PM_imports,pmImp,MIN(sizeof(_PM_imports),pmImp->dwSize)); - return &_BE_exports; -} - -#endif /* __DRIVER__ */ diff --git a/board/MAI/bios_emulator/scitech/src/biosemu/biosemui.h b/board/MAI/bios_emulator/scitech/src/biosemu/biosemui.h deleted file mode 100644 index 23edebc95c..0000000000 --- a/board/MAI/bios_emulator/scitech/src/biosemu/biosemui.h +++ /dev/null @@ -1,79 +0,0 @@ -/**************************************************************************** -* -* BIOS emulator and interface -* to Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Internal header file for the BIOS emulator library. -* -****************************************************************************/ - -#ifndef __BIOSEMUI_H -#define __BIOSEMUI_H - -#include <biosemu.h> - -/*---------------------- Macros and type definitions ----------------------*/ - -#ifdef DEBUG -#define DB(x) x -#else -#define DB(x) -#endif - -#define BIOS_SEG 0xfff0 - -#define M _X86EMU_env - -/*-------------------------- Function Prototypes --------------------------*/ - -/* bios.c */ - -void _BE_bios_init(u32 *intrTab); -void _BE_setup_funcs(void); - -/* besys.c */ - -u8 X86API BE_rdb(u32 addr); -u16 X86API BE_rdw(u32 addr); -u32 X86API BE_rdl(u32 addr); -void X86API BE_wrb(u32 addr,u8 val); -void X86API BE_wrw(u32 addr,u16 val); -void X86API BE_wrl(u32 addr,u32 val); -#ifdef DEBUG -u8 X86API BE_inb(int port); -u16 X86API BE_inw(int port); -u32 X86API BE_inl(int port); -void X86API BE_outb(int port, u8 val); -void X86API BE_outw(int port, u16 val); -void X86API BE_outl(int port, u32 val); -#endif - -#endif /* __BIOSEMUI_H */ diff --git a/board/MAI/bios_emulator/scitech/src/biosemu/makefile b/board/MAI/bios_emulator/scitech/src/biosemu/makefile deleted file mode 100644 index 80730b2997..0000000000 --- a/board/MAI/bios_emulator/scitech/src/biosemu/makefile +++ /dev/null @@ -1,99 +0,0 @@ -############################################################################# -# -# BIOS emulator and interface -# to Realmode X86 Emulator Library -# -# Copyright (C) 1996-1999 SciTech Software, Inc. -# -# ======================================================================== -# -# Permission to use, copy, modify, distribute, and sell this software and -# its documentation for any purpose is hereby granted without fee, -# provided that the above copyright notice appear in all copies and that -# both that copyright notice and this permission notice appear in -# supporting documentation, and that the name of the authors not be used -# in advertising or publicity pertaining to distribution of the software -# without specific, written prior permission. The authors makes no -# representations about the suitability of this software for any purpose. -# It is provided "as is" without express or implied warranty. -# -# THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -# EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -# USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -# PERFORMANCE OF THIS SOFTWARE. -# -# ======================================================================== -# -# Descripton: Generic makefile for the x86emu library. Requires -# the SciTech Software makefile definitions package to be -# installed, which uses the DMAKE make program. -# -############################################################################# - -.IMPORT .IGNORE: DEBUG - -#---------------------------------------------------------------------------- -# Define the lists of object files -#---------------------------------------------------------------------------- - -DLL_OBJS = dllstart$O _pm_imp$O -BIOS_OBJS = biosemu$O bios$O besys$O -X86_OBJS = sys$O decode$O ops$O ops2$O prim_ops$O fpu$O debug$O -CFLAGS += -DSCITECH -I$(SCITECH)\src\x86emu - -.IF $(BUILD_DLL) - -CFLAGS += -I$(PRIVATE)\include\drvlib -I$(SCITECH)\include\drvlib -D__DRIVER__ -ASFLAGS += -d__DRIVER__ -EXELIBS = drvlib$L - -.ELSE - -.IF $(DEBUG) -CFLAGS += -DDEBUG -.ENDIF -OBJECTS = $(BIOS_OBJS) $(X86_OBJS) -LIBCLEAN = *.dll *.lib *.a -LIBFILE = $(LP)biosemu$L - -.ENDIF - -#---------------------------------------------------------------------------- -# Sample test programs -#---------------------------------------------------------------------------- - -all: $(LIBFILE) warmboot$E - -warmboot$E: warmboot$O $(LIBFILE) - -#---------------------------------------------------------------------------- -# Target to build the Binary Portable DLL target -#---------------------------------------------------------------------------- - -biosemu.dll: $(DLL_OBJS) $(BIOS_OBJS) $(X86_OBJS) - -#---------------------------------------------------------------------------- -# Target to build all Intel binary drivers -#---------------------------------------------------------------------------- - -.PHONY mkdrv: - @build wc11-w32 biosemu.dll -u BUILD_DLL=1 NO_RUNTIME=1 OPT=1 - @$(CP) biosemu.dll $(PRIVATE)\nucleus\graphics\biosemu.bpd - @dmake cleanexe - -.PHONY db: - @build wc11-w32 biosemu.dll BUILD_DLL=1 NO_RUNTIME=1 OPT=1 - @$(CP) biosemu.dll $(PRIVATE)\nucleus\graphics\biosemu.bpd - -#---------------------------------------------------------------------------- -# Define the list of object files to create dependency information for -#---------------------------------------------------------------------------- - -DEPEND_OBJ = warmboot$O $(BIOS_OBJS) $(X86_OBJS) $(DLL_OBJS) -DEPEND_SRC = $(SCITECH)/src/x86emu;$(PRIVATE)/src/common -.SOURCE: $(SCITECH)/src/x86emu $(PRIVATE)/src/common - -.INCLUDE: "$(SCITECH)/makedefs/common.mk" diff --git a/board/MAI/bios_emulator/scitech/src/biosemu/makefile.cross b/board/MAI/bios_emulator/scitech/src/biosemu/makefile.cross deleted file mode 100644 index 9141003076..0000000000 --- a/board/MAI/bios_emulator/scitech/src/biosemu/makefile.cross +++ /dev/null @@ -1,10 +0,0 @@ -CC = ppc-elf32-gcc -AR = ppc-elf32-ar - -CFLAGS = -D__DRIVER__ -I../../include -DDEBUG -I. - -BIOS_OBJS = biosemu.o bios.o besys.o -X86_OBJS = sys.o decode.o ops.o prim_ops.o fpu.o debug.o - -libbios.a: $(BIOS_OBJS) - $(AR) rcs libbios.a $(BIOS_OBJS)
\ No newline at end of file diff --git a/board/MAI/bios_emulator/scitech/src/biosemu/warmboot.c b/board/MAI/bios_emulator/scitech/src/biosemu/warmboot.c deleted file mode 100644 index 98d5fb8a62..0000000000 --- a/board/MAI/bios_emulator/scitech/src/biosemu/warmboot.c +++ /dev/null @@ -1,569 +0,0 @@ -/**************************************************************************** -* -* BIOS emulator and interface -* to Realmode X86 Emulator Library -* -* Copyright (C) 1996-1999 SciTech Software, Inc. -* -* ======================================================================== -* -* Permission to use, copy, modify, distribute, and sell this software and -* its documentation for any purpose is hereby granted without fee, -* provided that the above copyright notice appear in all copies and that -* both that copyright notice and this permission notice appear in -* supporting documentation, and that the name of the authors not be used -* in advertising or publicity pertaining to distribution of the software -* without specific, written prior permission. The authors makes no -* representations about the suitability of this software for any purpose. -* It is provided "as is" without express or implied warranty. -* -* THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO -* EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR -* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR -* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR -* PERFORMANCE OF THIS SOFTWARE. -* -* ======================================================================== -* -* Language: ANSI C -* Environment: Any -* Developer: Kendall Bennett -* -* Description: Module to implement warm booting of all PCI/AGP controllers -* on the bus. We use the x86 real mode emulator to run the -* BIOS on the primary and secondary controllers to bring -* the cards up. -* -****************************************************************************/ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <stdarg.h> -#include "biosemu.h" -#ifndef _MAX_PATH -#define _MAX_PATH 256 -#endif - -/*------------------------- Global Variables ------------------------------*/ - -static PCIDeviceInfo PCI[MAX_PCI_DEVICES]; -static int NumPCI = -1; -static int BridgeIndex[MAX_PCI_DEVICES] = {0}; -static int NumBridges; -static PCIBridgeInfo *AGPBridge = NULL; -static int DeviceIndex[MAX_PCI_DEVICES] = {0}; -static int NumDevices; -static u32 debugFlags = 0; -static BE_VGAInfo VGAInfo[MAX_PCI_DEVICES] = {{0}}; -static ibool useV86 = false; -static ibool forcePost = false; - -/* Length of the BIOS image */ - -#define MAX_BIOSLEN (64 * 1024L) -#define FINAL_BIOSLEN (32 * 1024L) - -/* Macro to determine if the VGA is enabled and responding */ - -#define VGA_NOT_ACTIVE() (forcePost || (PM_inpb(0x3CC) == 0xFF) || ((PM_inpb(0x3CC) & 0x2) == 0)) - -#define ENABLE_DEVICE(device) \ - PCI_writePCIRegB(0x4,PCI[DeviceIndex[device]].Command | 0x7,device) - -#define DISABLE_DEVICE(device) \ - PCI_writePCIRegB(0x4,0,device) - -/* Macros to enable and disable AGP VGA resources */ - -#define ENABLE_AGP_VGA() \ - PCI_accessReg(0x3E,AGPBridge->BridgeControl | 0x8,PCI_WRITE_WORD,(PCIDeviceInfo*)AGPBridge) - -#define DISABLE_AGP_VGA() \ - PCI_accessReg(0x3E,AGPBridge->BridgeControl & ~0x8,PCI_WRITE_WORD,(PCIDeviceInfo*)AGPBridge) - -#define RESTORE_AGP_VGA() \ - PCI_accessReg(0x3E,AGPBridge->BridgeControl,PCI_WRITE_WORD,(PCIDeviceInfo*)AGPBridge) - -/*-------------------------- Implementation -------------------------------*/ - -/**************************************************************************** -RETURNS: -The address to use to map the secondary BIOS (PCI/AGP devices) - -REMARKS: -Searches all the PCI base address registers for the device looking for a -memory mapping that is large enough to hold our ROM BIOS. We usually end up -finding the framebuffer mapping (usually BAR 0x10), and we use this mapping -to map the BIOS for the device into. We use a mapping that is already -assigned to the device to ensure the memory range will be passed through -by any PCI->PCI or AGP->PCI bridge that may be present. - -NOTE: Usually this function is only used for AGP devices, but it may be - used for PCI devices that have already been POST'ed and the BIOS - ROM base address has been zero'ed out. -****************************************************************************/ -static ulong PCI_findBIOSAddr( - int device) -{ - ulong base,size; - int bar; - - for (bar = 0x10; bar <= 0x14; bar++) { - base = PCI_readPCIRegL(bar,device) & ~0xFF; - if (!(base & 0x1)) { - PCI_writePCIRegL(bar,0xFFFFFFFF,device); - size = PCI_readPCIRegL(bar,device) & ~0xFF; - size = ~size+1; - PCI_writePCIRegL(bar,0,device); - if (size >= MAX_BIOSLEN) - return base; - } - } - return 0; -} - -/**************************************************************************** -REMARKS: -Re-writes the PCI base address registers for the secondary PCI controller -with the values from our initial PCI bus enumeration. This fixes up the -values after we have POST'ed the secondary display controller BIOS, which -may have incorrectly re-programmed the base registers the same as the -primary display controller (the case for identical S3 cards). -****************************************************************************/ -static void _PCI_fixupSecondaryBARs(void) -{ - int i; - - for (i = 0; i < NumDevices; i++) { - PCI_writePCIRegL(0x10,PCI[DeviceIndex[i]].BaseAddress10,i); - PCI_writePCIRegL(0x14,PCI[DeviceIndex[i]].BaseAddress14,i); - PCI_writePCIRegL(0x18,PCI[DeviceIndex[i]].BaseAddress18,i); - PCI_writePCIRegL(0x1C,PCI[DeviceIndex[i]].BaseAddress1C,i); - PCI_writePCIRegL(0x20,PCI[DeviceIndex[i]].BaseAddress20,i); - PCI_writePCIRegL(0x24,PCI[DeviceIndex[i]].BaseAddress24,i); - } -} - -/**************************************************************************** -RETURNS: -True if successfully initialised, false if not. - -REMARKS: -This function executes the BIOS POST code on the controller. We assume that -at this stage the controller has its I/O and memory space enabled and -that all other controllers are in a disabled state. -****************************************************************************/ -static void PCI_doBIOSPOST( - int device, - ulong BIOSPhysAddr, - void *mappedBIOS, - ulong BIOSLen) -{ - RMREGS regs; - RMSREGS sregs; - - /* Determine the value to store in AX for BIOS POST */ - regs.x.ax = (u16)(PCI[DeviceIndex[device]].slot.i >> 8); - if (useV86) { - /* Post the BIOS using the PM functions (ie: v86 mode on Linux) */ - if (!PM_doBIOSPOST(regs.x.ax,BIOSPhysAddr,mappedBIOS,BIOSLen)) { - /* If the PM function fails, this probably means are we are on */ - /* DOS and can't re-map the real mode 0xC0000 region. In thise */ - /* case if the device is the primary, we can use the real */ - /* BIOS at 0xC0000 directly. */ - if (device == 0) - PM_doBIOSPOST(regs.x.ax,0xC0000,mappedBIOS,BIOSLen); - } - } - else { - /* Setup the X86 emulator for the VGA BIOS */ - BE_setVGA(&VGAInfo[device]); - - /* Execute the BIOS POST code */ - BE_callRealMode(0xC000,0x0003,®s,&sregs); - - /* Cleanup and exit */ - BE_getVGA(&VGAInfo[device]); - } -} - -/**************************************************************************** -RETURNS: -True if successfully initialised, false if not. - -REMARKS: -Loads and POST's the secondary controllers BIOS, directly from the BIOS -image we can extract over the PCI bus. -****************************************************************************/ -static ibool PCI_postControllers(void) -{ - int device; - ulong BIOSImageLen,mappedBIOSPhys; - uchar *mappedBIOS,*copyOfBIOS; - char filename[_MAX_PATH]; - FILE *f; - - /* Disable the primary display controller and AGP VGA pass-through */ - DISABLE_DEVICE(0); - if (AGPBridge) - DISABLE_AGP_VGA(); - - /* Now POST all the secondary controllers */ - for (device = 0; device < NumDevices; device++) { - /* Skip the device if it is not enabled (probably an ISA device) */ - if (DeviceIndex[device] == -1) - continue; - - /* Enable secondary display controller. If the secondary controller */ - /* is on the AGP bus, then enable VGA resources for the AGP device. */ - ENABLE_DEVICE(device); - if (AGPBridge && AGPBridge->SecondayBusNumber == PCI[DeviceIndex[device]].slot.p.Bus) - ENABLE_AGP_VGA(); - - /* Check if the controller has already been POST'ed */ - if (VGA_NOT_ACTIVE()) { - /* Find a viable place to map the secondary PCI BIOS image and map it */ - printk("Device %d not enabled, so attempting warm boot it\n", device); - - /* For AGP devices (and PCI devices that do have the ROM base */ - /* address zero'ed out) we have to map the BIOS to a location */ - /* that is passed by the AGP bridge to the bus. Some AGP devices */ - /* have the ROM base address already set up for us, and some */ - /* do not (we map to one of the existing BAR locations in */ - /* this case). */ - mappedBIOS = NULL; - if (PCI[DeviceIndex[device]].ROMBaseAddress != 0) - mappedBIOSPhys = PCI[DeviceIndex[device]].ROMBaseAddress & ~0xF; - else - mappedBIOSPhys = PCI_findBIOSAddr(device); - printk("Mapping BIOS image to 0x%08X\n", mappedBIOSPhys); - mappedBIOS = PM_mapPhysicalAddr(mappedBIOSPhys,MAX_BIOSLEN-1,false); - PCI_writePCIRegL(0x30,mappedBIOSPhys | 0x1,device); - BIOSImageLen = mappedBIOS[2] * 512; - if ((copyOfBIOS = malloc(BIOSImageLen)) == NULL) - return false; - memcpy(copyOfBIOS,mappedBIOS,BIOSImageLen); - PM_freePhysicalAddr(mappedBIOS,MAX_BIOSLEN-1); - - /* Allocate memory to store copy of BIOS from secondary controllers */ - VGAInfo[device].pciInfo = &PCI[DeviceIndex[device]]; - VGAInfo[device].BIOSImage = copyOfBIOS; - VGAInfo[device].BIOSImageLen = BIOSImageLen; - - /* Restore device mappings */ - PCI_writePCIRegL(0x30,PCI[DeviceIndex[device]].ROMBaseAddress,device); - PCI_writePCIRegL(0x10,PCI[DeviceIndex[device]].BaseAddress10,device); - PCI_writePCIRegL(0x14,PCI[DeviceIndex[device]].BaseAddress14,device); - - /* Now execute the BIOS POST for the device */ - if (copyOfBIOS[0] == 0x55 && copyOfBIOS[1] == 0xAA) { - printk("Executing BIOS POST for controller.\n"); - PCI_doBIOSPOST(device,mappedBIOSPhys,copyOfBIOS,BIOSImageLen); - } - - /* Reset the size of the BIOS image to the final size */ - VGAInfo[device].BIOSImageLen = FINAL_BIOSLEN; - - /* Save the BIOS and interrupt vector information to disk */ - sprintf(filename,"%s/bios.%02d",PM_getNucleusConfigPath(),device); - if ((f = fopen(filename,"wb")) != NULL) { - fwrite(copyOfBIOS,1,FINAL_BIOSLEN,f); - fwrite(VGAInfo[device].LowMem,1,sizeof(VGAInfo[device].LowMem),f); - fclose(f); - } - } - else { - /* Allocate memory to store copy of BIOS from secondary controllers */ - if ((copyOfBIOS = malloc(FINAL_BIOSLEN)) == NULL) - return false; - VGAInfo[device].pciInfo = &PCI[DeviceIndex[device]]; - VGAInfo[device].BIOSImage = copyOfBIOS; - VGAInfo[device].BIOSImageLen = FINAL_BIOSLEN; - - /* Load the BIOS and interrupt vector information from disk */ - sprintf(filename,"%s/bios.%02d",PM_getNucleusConfigPath(),device); - if ((f = fopen(filename,"rb")) != NULL) { - fread(copyOfBIOS,1,FINAL_BIOSLEN,f); - fread(VGAInfo[device].LowMem,1,sizeof(VGAInfo[device].LowMem),f); - fclose(f); - } - } - - /* Fix up all the secondary PCI base address registers */ - /* (restores them all from the values we read previously) */ - _PCI_fixupSecondaryBARs(); - - /* Disable the secondary controller and AGP VGA pass-through */ - DISABLE_DEVICE(device); - if (AGPBridge) - DISABLE_AGP_VGA(); - } - - /* Reenable primary display controller and reset AGP bridge control */ - if (AGPBridge) - RESTORE_AGP_VGA(); - ENABLE_DEVICE(0); - - /* Free physical BIOS image mapping */ - PM_freePhysicalAddr(mappedBIOS,MAX_BIOSLEN-1); - - /* Restore the X86 emulator BIOS info to primary controller */ - if (!useV86) - BE_setVGA(&VGAInfo[0]); - return true; -} - -/**************************************************************************** -REMARKS: -Enumerates the PCI bus and dumps the PCI configuration information to the -log file. -****************************************************************************/ -static void EnumeratePCI(void) -{ - int i,index; - PCIBridgeInfo *info; - - printk("Displaying enumeration of PCI bus (%d devices, %d display devices)\n", - NumPCI, NumDevices); - for (index = 0; index < NumDevices; index++) - printk(" Display device %d is PCI device %d\n",index,DeviceIndex[index]); - printk("\n"); - printk("Bus Slot Fnc DeviceID SubSystem Rev Class IRQ Int Cmd\n"); - for (i = 0; i < NumPCI; i++) { - printk("%2d %2d %2d %04X:%04X %04X:%04X %02X %02X:%02X %02X %02X %04X ", - PCI[i].slot.p.Bus, - PCI[i].slot.p.Device, - PCI[i].slot.p.Function, - PCI[i].VendorID, - PCI[i].DeviceID, - PCI[i].SubSystemVendorID, - PCI[i].SubSystemID, - PCI[i].RevID, - PCI[i].BaseClass, - PCI[i].SubClass, - PCI[i].InterruptLine, - PCI[i].InterruptPin, - PCI[i].Command); - for (index = 0; index < NumDevices; index++) { - if (DeviceIndex[index] == i) - break; - } - if (index < NumDevices) - printk("<- %d\n", index); - else - printk("\n"); - } - printk("\n"); - printk("DeviceID Stat Ifc Cch Lat Hdr BIST\n"); - for (i = 0; i < NumPCI; i++) { - printk("%04X:%04X %04X %02X %02X %02X %02X %02X ", - PCI[i].VendorID, - PCI[i].DeviceID, - PCI[i].Status, - PCI[i].Interface, - PCI[i].CacheLineSize, - PCI[i].LatencyTimer, - PCI[i].HeaderType, - PCI[i].BIST); - for (index = 0; index < NumDevices; index++) { - if (DeviceIndex[index] == i) - break; - } - if (index < NumDevices) - printk("<- %d\n", index); - else - printk("\n"); - } - printk("\n"); - printk("DeviceID Base10h Base14h Base18h Base1Ch Base20h Base24h ROMBase\n"); - for (i = 0; i < NumPCI; i++) { - printk("%04X:%04X %08X %08X %08X %08X %08X %08X %08X ", - PCI[i].VendorID, - PCI[i].DeviceID, - PCI[i].BaseAddress10, - PCI[i].BaseAddress14, - PCI[i].BaseAddress18, - PCI[i].BaseAddress1C, - PCI[i].BaseAddress20, - PCI[i].BaseAddress24, - PCI[i].ROMBaseAddress); - for (index = 0; index < NumDevices; index++) { - if (DeviceIndex[index] == i) - break; - } - if (index < NumDevices) - printk("<- %d\n", index); - else - printk("\n"); - } - printk("\n"); - printk("DeviceID BAR10Len BAR14Len BAR18Len BAR1CLen BAR20Len BAR24Len ROMLen\n"); - for (i = 0; i < NumPCI; i++) { - printk("%04X:%04X %08X %08X %08X %08X %08X %08X %08X ", - PCI[i].VendorID, - PCI[i].DeviceID, - PCI[i].BaseAddress10Len, - PCI[i].BaseAddress14Len, - PCI[i].BaseAddress18Len, - PCI[i].BaseAddress1CLen, - PCI[i].BaseAddress20Len, - PCI[i].BaseAddress24Len, - PCI[i].ROMBaseAddressLen); - for (index = 0; index < NumDevices; index++) { - if (DeviceIndex[index] == i) - break; - } - if (index < NumDevices) - printk("<- %d\n", index); - else - printk("\n"); - } - printk("\n"); - printk("Displaying enumeration of %d bridge devices\n",NumBridges); - printk("\n"); - printk("DeviceID P# S# B# IOB IOL MemBase MemLimit PreBase PreLimit Ctrl\n"); - for (i = 0; i < NumBridges; i++) { - info = (PCIBridgeInfo*)&PCI[BridgeIndex[i]]; - printk("%04X:%04X %02X %02X %02X %04X %04X %08X %08X %08X %08X %04X\n", - info->VendorID, - info->DeviceID, - info->PrimaryBusNumber, - info->SecondayBusNumber, - info->SubordinateBusNumber, - ((u16)info->IOBase << 8) & 0xF000, - info->IOLimit ? - ((u16)info->IOLimit << 8) | 0xFFF : 0, - ((u32)info->MemoryBase << 16) & 0xFFF00000, - info->MemoryLimit ? - ((u32)info->MemoryLimit << 16) | 0xFFFFF : 0, - ((u32)info->PrefetchableMemoryBase << 16) & 0xFFF00000, - info->PrefetchableMemoryLimit ? - ((u32)info->PrefetchableMemoryLimit << 16) | 0xFFFFF : 0, - info->BridgeControl); - } - printk("\n"); -} - -/**************************************************************************** -RETURNS: -Number of display devices found. - -REMARKS: -This function enumerates the number of available display devices on the -PCI bus, and returns the number found. -****************************************************************************/ -static int PCI_enumerateDevices(void) -{ - int i,j; - PCIBridgeInfo *info; - - /* If this is the first time we have been called, enumerate all */ - /* devices on the PCI bus. */ - if (NumPCI == -1) { - for (i = 0; i < MAX_PCI_DEVICES; i++) - PCI[i].dwSize = sizeof(PCI[i]); - if ((NumPCI = PCI_enumerate(PCI,MAX_PCI_DEVICES)) == 0) - return -1; - - /* Build a list of all PCI bridge devices */ - for (i = 0,NumBridges = 0,BridgeIndex[0] = -1; i < NumPCI; i++) { - if (PCI[i].BaseClass == PCI_BRIDGE_CLASS) { - if (NumBridges < MAX_PCI_DEVICES) - BridgeIndex[NumBridges++] = i; - } - } - - /* Now build a list of all display class devices */ - for (i = 0,NumDevices = 1,DeviceIndex[0] = -1; i < NumPCI; i++) { - if (PCI_IS_DISPLAY_CLASS(&PCI[i])) { - if ((PCI[i].Command & 0x3) == 0x3) { - DeviceIndex[0] = i; - } - else { - if (NumDevices < MAX_PCI_DEVICES) - DeviceIndex[NumDevices++] = i; - } - if (PCI[i].slot.p.Bus != 0) { - /* This device is on a different bus than the primary */ - /* PCI bus, so it is probably an AGP device. Find the */ - /* AGP bus device that controls that bus so we can */ - /* control it. */ - for (j = 0; j < NumBridges; j++) { - info = (PCIBridgeInfo*)&PCI[BridgeIndex[j]]; - if (info->SecondayBusNumber == PCI[i].slot.p.Bus) { - AGPBridge = info; - break; - } - } - } - } - } - - /* Enumerate all PCI and bridge devices to log file */ - EnumeratePCI(); - } - return NumDevices; -} - -FILE *logfile; - -void printk(const char *fmt, ...) -{ - va_list argptr; - va_start(argptr, fmt); - vfprintf(logfile, fmt, argptr); - fflush(logfile); - va_end(argptr); -} - -int main(int argc,char *argv[]) -{ - while (argc > 1) { - if (stricmp(argv[1],"-usev86") == 0) { - useV86 = true; - } - else if (stricmp(argv[1],"-force") == 0) { - forcePost = true; - } -#ifdef DEBUG - else if (stricmp(argv[1],"-decode") == 0) { - debugFlags |= DEBUG_DECODE_F; - } - else if (stricmp(argv[1],"-iotrace") == 0) { - debugFlags |= DEBUG_IO_TRACE_F; - } -#endif - else { - printf("Usage: warmboot [-usev86] [-force] [-decode] [-iotrace]\n"); - exit(-1); - } - argc--; - argv++; - } - if ((logfile = fopen("warmboot.log","w")) == NULL) - exit(1); - - PM_init(); - if (!useV86) { - /* Initialise the x86 BIOS emulator */ - BE_init(false,debugFlags,65536,&VGAInfo[0]); - } - - /* Enumerate all devices (which POST's them at the same time) */ - if (PCI_enumerateDevices() < 1) { - printk("No PCI display devices found!\n"); - return -1; - } - - /* Post all the display controller BIOS'es */ - PCI_postControllers(); - - /* Cleanup and exit the emulator */ - if (!useV86) - BE_exit(); - fclose(logfile); - return 0; -} |