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authorBen Warren <bwarren@qstreams.com>2007-08-13 21:26:03 -0400
committerBen Warren <bwarren@qstreams.com>2007-08-13 21:26:03 -0400
commitd1bc6c8d5f4a9c7ca9fb2292d5c65f846dcc3995 (patch)
treedd0722cee4758fe40f6a5cc75986ebb1a395aac2 /drivers/bios_emulator/besys.c
parentf539edc076cfe52bff919dd512ba8d7af0e22092 (diff)
parent8a92b7c60b40ff79e2cc96e13aeac2a531dde473 (diff)
downloadu-boot-imx-d1bc6c8d5f4a9c7ca9fb2292d5c65f846dcc3995.zip
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Sync'd u-boot-net with mainline
Merge git://www.denx.de/git/u-boot Conflicts: drivers/bcm570x.c drivers/tigon3.c
Diffstat (limited to 'drivers/bios_emulator/besys.c')
-rw-r--r--drivers/bios_emulator/besys.c721
1 files changed, 721 insertions, 0 deletions
diff --git a/drivers/bios_emulator/besys.c b/drivers/bios_emulator/besys.c
new file mode 100644
index 0000000..4c4bc8d
--- /dev/null
+++ b/drivers/bios_emulator/besys.c
@@ -0,0 +1,721 @@
+/****************************************************************************
+*
+* BIOS emulator and interface
+* to Realmode X86 Emulator Library
+*
+* ========================================================================
+*
+* Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+* Jason Jin<Jason.jin@freescale.com>
+*
+* Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved.
+*
+* This file may be distributed and/or modified under the terms of the
+* GNU General Public License version 2.0 as published by the Free
+* Software Foundation and appearing in the file LICENSE.GPL included
+* in the packaging of this file.
+*
+* Licensees holding a valid Commercial License for this product from
+* SciTech Software, Inc. may use this file in accordance with the
+* Commercial License Agreement provided with the Software.
+*
+* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING
+* THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+* PURPOSE.
+*
+* See http://www.scitechsoft.com/license/ for information about
+* the licensing options available and how to purchase a Commercial
+* License Agreement.
+*
+* Contact license@scitechsoft.com if any conditions of this licensing
+* are not clear to you, or you have questions about licensing options.
+*
+* ========================================================================
+*
+* Language: ANSI C
+* Environment: Any
+* Developer: Kendall Bennett
+*
+* Description: This file includes BIOS emulator I/O and memory access
+* functions.
+*
+* Jason ported this file to u-boot to run the ATI video card
+* BIOS in u-boot. Removed some emulate functions such as the
+* timer port access. Made all the VGA port except reading 0x3c3
+* be emulated. Seems like reading 0x3c3 should return the high
+* 16 bit of the io port.
+*
+****************************************************************************/
+
+#include "biosemui.h"
+
+#if defined(CONFIG_BIOSEMU)
+/*------------------------- Global Variables ------------------------------*/
+
+#ifndef __i386__
+static char *BE_biosDate = "08/14/99";
+static u8 BE_model = 0xFC;
+static u8 BE_submodel = 0x00;
+#endif
+
+/*----------------------------- Implementation ----------------------------*/
+
+/****************************************************************************
+PARAMETERS:
+addr - Emulator memory address to convert
+
+RETURNS:
+Actual memory address to read or write the data
+
+REMARKS:
+This function converts an emulator memory address in a 32-bit range to
+a real memory address that we wish to access. It handles splitting up the
+memory address space appropriately to access the emulator BIOS image, video
+memory and system BIOS etc.
+****************************************************************************/
+static u8 *BE_memaddr(u32 addr)
+{
+ if (addr >= 0xC0000 && addr <= _BE_env.biosmem_limit) {
+ return (u8*)(_BE_env.biosmem_base + addr - 0xC0000);
+ } else if (addr > _BE_env.biosmem_limit && addr < 0xD0000) {
+ DB(printf("BE_memaddr: address %#lx may be invalid!\n", addr);)
+ return M.mem_base;
+ } else if (addr >= 0xA0000 && addr <= 0xBFFFF) {
+ return (u8*)(_BE_env.busmem_base + addr - 0xA0000);
+ }
+#ifdef __i386__
+ else if (addr >= 0xD0000 && addr <= 0xFFFFF) {
+ /* We map the real System BIOS directly on real PC's */
+ DB(printf("BE_memaddr: System BIOS address %#lx\n", addr);)
+ return _BE_env.busmem_base + addr - 0xA0000;
+ }
+#else
+ else if (addr >= 0xFFFF5 && addr < 0xFFFFE) {
+ /* Return a faked BIOS date string for non-x86 machines */
+ DB(printf("BE_memaddr - Returning BIOS date\n");)
+ return BE_biosDate + addr - 0xFFFF5;
+ } else if (addr == 0xFFFFE) {
+ /* Return system model identifier for non-x86 machines */
+ DB(printf("BE_memaddr - Returning model\n");)
+ return &BE_model;
+ } else if (addr == 0xFFFFF) {
+ /* Return system submodel identifier for non-x86 machines */
+ DB(printf("BE_memaddr - Returning submodel\n");)
+ return &BE_submodel;
+ }
+#endif
+ else if (addr > M.mem_size - 1) {
+ HALT_SYS();
+ return M.mem_base;
+ }
+
+ return M.mem_base + addr;
+}
+
+/****************************************************************************
+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)
+{
+ if (_BE_env.emulateVGA && addr >= 0xA0000 && addr <= 0xBFFFF)
+ return 0;
+ else {
+ u8 val = readb_le(BE_memaddr(addr));
+ 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)
+{
+ if (_BE_env.emulateVGA && addr >= 0xA0000 && addr <= 0xBFFFF)
+ return 0;
+ else {
+ u8 *base = BE_memaddr(addr);
+ u16 val = readw_le(base);
+ return val;
+ }
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - Emulator memory address to read
+
+RETURNS:
+Long value read from emulator memory.
+
+REMARKS:
+Reads a 32-bit 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)
+{
+ if (_BE_env.emulateVGA && addr >= 0xA0000 && addr <= 0xBFFFF)
+ return 0;
+ else {
+ u8 *base = BE_memaddr(addr);
+ u32 val = readl_le(base);
+ 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)
+{
+ if (!(_BE_env.emulateVGA && addr >= 0xA0000 && addr <= 0xBFFFF)) {
+ writeb_le(BE_memaddr(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)
+{
+ if (!(_BE_env.emulateVGA && addr >= 0xA0000 && addr <= 0xBFFFF)) {
+ u8 *base = BE_memaddr(addr);
+ writew_le(base, val);
+
+ }
+}
+
+/****************************************************************************
+PARAMETERS:
+addr - Emulator memory address to read
+val - Value to store
+
+REMARKS:
+Writes a 32-bit 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)
+{
+ if (!(_BE_env.emulateVGA && addr >= 0xA0000 && addr <= 0xBFFFF)) {
+ u8 *base = BE_memaddr(addr);
+ writel_le(base, val);
+ }
+}
+
+#if defined(DEBUG) || !defined(__i386__)
+
+/* For Non-Intel machines we may need to emulate some I/O port accesses that
+ * the BIOS may try to access, such as the PCI config registers.
+ */
+
+#define IS_TIMER_PORT(port) (0x40 <= port && port <= 0x43)
+#define IS_CMOS_PORT(port) (0x70 <= port && port <= 0x71)
+/*#define IS_VGA_PORT(port) (_BE_env.emulateVGA && 0x3C0 <= port && port <= 0x3DA)*/
+#define IS_VGA_PORT(port) (0x3C0 <= port && port <= 0x3DA)
+#define IS_PCI_PORT(port) (0xCF8 <= port && port <= 0xCFF)
+#define IS_SPKR_PORT(port) (port == 0x61)
+
+/****************************************************************************
+PARAMETERS:
+port - Port to read from
+type - Type of access to perform
+
+REMARKS:
+Performs an emulated read from the Standard VGA I/O ports. If the target
+hardware does not support mapping the VGA I/O and memory (such as some
+PowerPC systems), we emulate the VGA so that the BIOS will still be able to
+set NonVGA display modes such as on ATI hardware.
+****************************************************************************/
+static u8 VGA_inpb (const int port)
+{
+ u8 val = 0xff;
+
+ switch (port) {
+ case 0x3C0:
+ /* 3C0 has funky characteristics because it can act as either
+ a data register or index register depending on the state
+ of an internal flip flop in the hardware. Hence we have
+ to emulate that functionality in here. */
+ if (_BE_env.flipFlop3C0 == 0) {
+ /* Access 3C0 as index register */
+ val = _BE_env.emu3C0;
+ } else {
+ /* Access 3C0 as data register */
+ if (_BE_env.emu3C0 < ATT_C)
+ val = _BE_env.emu3C1[_BE_env.emu3C0];
+ }
+ _BE_env.flipFlop3C0 ^= 1;
+ break;
+ case 0x3C1:
+ if (_BE_env.emu3C0 < ATT_C)
+ return _BE_env.emu3C1[_BE_env.emu3C0];
+ break;
+ case 0x3CC:
+ return _BE_env.emu3C2;
+ case 0x3C4:
+ return _BE_env.emu3C4;
+ case 0x3C5:
+ if (_BE_env.emu3C4 < ATT_C)
+ return _BE_env.emu3C5[_BE_env.emu3C4];
+ break;
+ case 0x3C6:
+ return _BE_env.emu3C6;
+ case 0x3C7:
+ return _BE_env.emu3C7;
+ case 0x3C8:
+ return _BE_env.emu3C8;
+ case 0x3C9:
+ if (_BE_env.emu3C7 < PAL_C)
+ return _BE_env.emu3C9[_BE_env.emu3C7++];
+ break;
+ case 0x3CE:
+ return _BE_env.emu3CE;
+ case 0x3CF:
+ if (_BE_env.emu3CE < GRA_C)
+ return _BE_env.emu3CF[_BE_env.emu3CE];
+ break;
+ case 0x3D4:
+ if (_BE_env.emu3C2 & 0x1)
+ return _BE_env.emu3D4;
+ break;
+ case 0x3D5:
+ if ((_BE_env.emu3C2 & 0x1) && (_BE_env.emu3D4 < CRT_C))
+ return _BE_env.emu3D5[_BE_env.emu3D4];
+ break;
+ case 0x3DA:
+ _BE_env.flipFlop3C0 = 0;
+ val = _BE_env.emu3DA;
+ _BE_env.emu3DA ^= 0x9;
+ break;
+ }
+ return val;
+}
+
+/****************************************************************************
+PARAMETERS:
+port - Port to write to
+type - Type of access to perform
+
+REMARKS:
+Performs an emulated write to one of the 8253 timer registers. For now
+we only emulate timer 0 which is the only timer that the BIOS code appears
+to use.
+****************************************************************************/
+static void VGA_outpb (int port, u8 val)
+{
+ switch (port) {
+ case 0x3C0:
+ /* 3C0 has funky characteristics because it can act as either
+ a data register or index register depending on the state
+ of an internal flip flop in the hardware. Hence we have
+ to emulate that functionality in here. */
+ if (_BE_env.flipFlop3C0 == 0) {
+ /* Access 3C0 as index register */
+ _BE_env.emu3C0 = val;
+ } else {
+ /* Access 3C0 as data register */
+ if (_BE_env.emu3C0 < ATT_C)
+ _BE_env.emu3C1[_BE_env.emu3C0] = val;
+ }
+ _BE_env.flipFlop3C0 ^= 1;
+ break;
+ case 0x3C2:
+ _BE_env.emu3C2 = val;
+ break;
+ case 0x3C4:
+ _BE_env.emu3C4 = val;
+ break;
+ case 0x3C5:
+ if (_BE_env.emu3C4 < ATT_C)
+ _BE_env.emu3C5[_BE_env.emu3C4] = val;
+ break;
+ case 0x3C6:
+ _BE_env.emu3C6 = val;
+ break;
+ case 0x3C7:
+ _BE_env.emu3C7 = (int) val *3;
+
+ break;
+ case 0x3C8:
+ _BE_env.emu3C8 = (int) val *3;
+
+ break;
+ case 0x3C9:
+ if (_BE_env.emu3C8 < PAL_C)
+ _BE_env.emu3C9[_BE_env.emu3C8++] = val;
+ break;
+ case 0x3CE:
+ _BE_env.emu3CE = val;
+ break;
+ case 0x3CF:
+ if (_BE_env.emu3CE < GRA_C)
+ _BE_env.emu3CF[_BE_env.emu3CE] = val;
+ break;
+ case 0x3D4:
+ if (_BE_env.emu3C2 & 0x1)
+ _BE_env.emu3D4 = val;
+ break;
+ case 0x3D5:
+ if ((_BE_env.emu3C2 & 0x1) && (_BE_env.emu3D4 < CRT_C))
+ _BE_env.emu3D5[_BE_env.emu3D4] = val;
+ break;
+ }
+}
+
+/****************************************************************************
+PARAMETERS:
+regOffset - Offset into register space for non-DWORD accesses
+value - Value to write to register for PCI_WRITE_* operations
+func - Function to perform (PCIAccessRegFlags)
+
+RETURNS:
+Value read from configuration register for PCI_READ_* operations
+
+REMARKS:
+Accesses a PCI configuration space register by decoding the value currently
+stored in the _BE_env.configAddress variable and passing it through to the
+portable PCI_accessReg function.
+****************************************************************************/
+static u32 BE_accessReg(int regOffset, u32 value, int func)
+{
+#ifdef __KERNEL__
+ int function, device, bus;
+ u8 val8;
+ u16 val16;
+ u32 val32;
+
+
+ /* Decode the configuration register values for the register we wish to
+ * access
+ */
+ regOffset += (_BE_env.configAddress & 0xFF);
+ function = (_BE_env.configAddress >> 8) & 0x7;
+ device = (_BE_env.configAddress >> 11) & 0x1F;
+ bus = (_BE_env.configAddress >> 16) & 0xFF;
+
+ /* Ignore accesses to all devices other than the one we're POSTing */
+ if ((function == _BE_env.vgaInfo.function) &&
+ (device == _BE_env.vgaInfo.device) &&
+ (bus == _BE_env.vgaInfo.bus)) {
+ switch (func) {
+ case REG_READ_BYTE:
+ pci_read_config_byte(_BE_env.vgaInfo.pcidev, regOffset,
+ &val8);
+ return val8;
+ case REG_READ_WORD:
+ pci_read_config_word(_BE_env.vgaInfo.pcidev, regOffset,
+ &val16);
+ return val16;
+ case REG_READ_DWORD:
+ pci_read_config_dword(_BE_env.vgaInfo.pcidev, regOffset,
+ &val32);
+ return val32;
+ case REG_WRITE_BYTE:
+ pci_write_config_byte(_BE_env.vgaInfo.pcidev, regOffset,
+ value);
+
+ return 0;
+ case REG_WRITE_WORD:
+ pci_write_config_word(_BE_env.vgaInfo.pcidev, regOffset,
+ value);
+
+ return 0;
+ case REG_WRITE_DWORD:
+ pci_write_config_dword(_BE_env.vgaInfo.pcidev,
+ regOffset, value);
+
+ return 0;
+ }
+ }
+ return 0;
+#else
+ PCIDeviceInfo pciInfo;
+
+ pciInfo.mech1 = 1;
+ pciInfo.slot.i = 0;
+ pciInfo.slot.p.Function = (_BE_env.configAddress >> 8) & 0x7;
+ pciInfo.slot.p.Device = (_BE_env.configAddress >> 11) & 0x1F;
+ pciInfo.slot.p.Bus = (_BE_env.configAddress >> 16) & 0xFF;
+ pciInfo.slot.p.Enable = 1;
+
+ /* Ignore accesses to all devices other than the one we're POSTing */
+ if ((pciInfo.slot.p.Function ==
+ _BE_env.vgaInfo.pciInfo->slot.p.Function)
+ && (pciInfo.slot.p.Device == _BE_env.vgaInfo.pciInfo->slot.p.Device)
+ && (pciInfo.slot.p.Bus == _BE_env.vgaInfo.pciInfo->slot.p.Bus))
+ return PCI_accessReg((_BE_env.configAddress & 0xFF) + regOffset,
+ value, func, &pciInfo);
+ return 0;
+#endif
+}
+
+/****************************************************************************
+PARAMETERS:
+port - Port to read from
+type - Type of access to perform
+
+REMARKS:
+Performs an emulated read from one of the PCI configuration space registers.
+We emulate this using our PCI_accessReg function which will access the PCI
+configuration space registers in a portable fashion.
+****************************************************************************/
+static u32 PCI_inp(int port, int type)
+{
+ switch (type) {
+ case REG_READ_BYTE:
+ if ((_BE_env.configAddress & 0x80000000) && 0xCFC <= port
+ && port <= 0xCFF)
+ return BE_accessReg(port - 0xCFC, 0, REG_READ_BYTE);
+ break;
+ case REG_READ_WORD:
+ if ((_BE_env.configAddress & 0x80000000) && 0xCFC <= port
+ && port <= 0xCFF)
+ return BE_accessReg(port - 0xCFC, 0, REG_READ_WORD);
+ break;
+ case REG_READ_DWORD:
+ if (port == 0xCF8)
+ return _BE_env.configAddress;
+ else if ((_BE_env.configAddress & 0x80000000) && port == 0xCFC)
+ return BE_accessReg(0, 0, REG_READ_DWORD);
+ break;
+ }
+ return 0;
+}
+
+/****************************************************************************
+PARAMETERS:
+port - Port to write to
+type - Type of access to perform
+
+REMARKS:
+Performs an emulated write to one of the PCI control registers.
+****************************************************************************/
+static void PCI_outp(int port, u32 val, int type)
+{
+ switch (type) {
+ case REG_WRITE_BYTE:
+ if ((_BE_env.configAddress & 0x80000000) && 0xCFC <= port
+ && port <= 0xCFF)
+ BE_accessReg(port - 0xCFC, val, REG_WRITE_BYTE);
+ break;
+ case REG_WRITE_WORD:
+ if ((_BE_env.configAddress & 0x80000000) && 0xCFC <= port
+ && port <= 0xCFF)
+ BE_accessReg(port - 0xCFC, val, REG_WRITE_WORD);
+ break;
+ case REG_WRITE_DWORD:
+ if (port == 0xCF8)
+ {
+ _BE_env.configAddress = val & 0x80FFFFFC;
+ }
+ else if ((_BE_env.configAddress & 0x80000000) && port == 0xCFC)
+ BE_accessReg(0, val, REG_WRITE_DWORD);
+ break;
+ }
+}
+
+#endif
+
+/****************************************************************************
+PARAMETERS:
+port - Port to write to
+
+RETURNS:
+Value read from the I/O port
+
+REMARKS:
+Performs an emulated 8-bit read from an I/O port. We handle special cases
+that we need to emulate in here, and fall through to reflecting the write
+through to the real hardware if we don't need to special case it.
+****************************************************************************/
+u8 X86API BE_inb(X86EMU_pioAddr port)
+{
+ u8 val = 0;
+
+#if defined(DEBUG) || !defined(__i386__)
+ if (IS_VGA_PORT(port)){
+ /*seems reading port 0x3c3 return the high 16 bit of io port*/
+ if(port == 0x3c3)
+ val = LOG_inpb(port);
+ else
+ val = VGA_inpb(port);
+ }
+ else if (IS_TIMER_PORT(port))
+ DB(printf("Can not interept TIMER port now!\n");)
+ else if (IS_SPKR_PORT(port))
+ DB(printf("Can not interept SPEAKER port now!\n");)
+ else if (IS_CMOS_PORT(port))
+ DB(printf("Can not interept CMOS port now!\n");)
+ else if (IS_PCI_PORT(port))
+ val = PCI_inp(port, REG_READ_BYTE);
+ else if (port < 0x100) {
+ DB(printf("WARN: INVALID inb.%04X -> %02X\n", (u16) port, val);)
+ val = LOG_inpb(port);
+ } else
+#endif
+ val = LOG_inpb(port);
+ return val;
+}
+
+/****************************************************************************
+PARAMETERS:
+port - Port to write to
+
+RETURNS:
+Value read from the I/O port
+
+REMARKS:
+Performs an emulated 16-bit read from an I/O port. We handle special cases
+that we need to emulate in here, and fall through to reflecting the write
+through to the real hardware if we don't need to special case it.
+****************************************************************************/
+u16 X86API BE_inw(X86EMU_pioAddr port)
+{
+ u16 val = 0;
+
+#if defined(DEBUG) || !defined(__i386__)
+ if (IS_PCI_PORT(port))
+ val = PCI_inp(port, REG_READ_WORD);
+ else if (port < 0x100) {
+ DB(printf("WARN: Maybe INVALID inw.%04X -> %04X\n", (u16) port, val);)
+ val = LOG_inpw(port);
+ } else
+#endif
+ val = LOG_inpw(port);
+ return val;
+}
+
+/****************************************************************************
+PARAMETERS:
+port - Port to write to
+
+RETURNS:
+Value read from the I/O port
+
+REMARKS:
+Performs an emulated 32-bit read from an I/O port. We handle special cases
+that we need to emulate in here, and fall through to reflecting the write
+through to the real hardware if we don't need to special case it.
+****************************************************************************/
+u32 X86API BE_inl(X86EMU_pioAddr port)
+{
+ u32 val = 0;
+
+#if defined(DEBUG) || !defined(__i386__)
+ if (IS_PCI_PORT(port))
+ val = PCI_inp(port, REG_READ_DWORD);
+ else if (port < 0x100) {
+ val = LOG_inpd(port);
+ } else
+#endif
+ val = LOG_inpd(port);
+ return val;
+}
+
+/****************************************************************************
+PARAMETERS:
+port - Port to write to
+val - Value to write to port
+
+REMARKS:
+Performs an emulated 8-bit write to an I/O port. We handle special cases
+that we need to emulate in here, and fall through to reflecting the write
+through to the real hardware if we don't need to special case it.
+****************************************************************************/
+void X86API BE_outb(X86EMU_pioAddr port, u8 val)
+{
+#if defined(DEBUG) || !defined(__i386__)
+ if (IS_VGA_PORT(port))
+ VGA_outpb(port, val);
+ else if (IS_TIMER_PORT(port))
+ DB(printf("Can not interept TIMER port now!\n");)
+ else if (IS_SPKR_PORT(port))
+ DB(printf("Can not interept SPEAKER port now!\n");)
+ else if (IS_CMOS_PORT(port))
+ DB(printf("Can not interept CMOS port now!\n");)
+ else if (IS_PCI_PORT(port))
+ PCI_outp(port, val, REG_WRITE_BYTE);
+ else if (port < 0x100) {
+ DB(printf("WARN:Maybe INVALID outb.%04X <- %02X\n", (u16) port, val);)
+ LOG_outpb(port, val);
+ } else
+#endif
+ LOG_outpb(port, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+port - Port to write to
+val - Value to write to port
+
+REMARKS:
+Performs an emulated 16-bit write to an I/O port. We handle special cases
+that we need to emulate in here, and fall through to reflecting the write
+through to the real hardware if we don't need to special case it.
+****************************************************************************/
+void X86API BE_outw(X86EMU_pioAddr port, u16 val)
+{
+#if defined(DEBUG) || !defined(__i386__)
+ if (IS_VGA_PORT(port)) {
+ VGA_outpb(port, val);
+ VGA_outpb(port + 1, val >> 8);
+ } else if (IS_PCI_PORT(port))
+ PCI_outp(port, val, REG_WRITE_WORD);
+ else if (port < 0x100) {
+ DB(printf("WARN: MAybe INVALID outw.%04X <- %04X\n", (u16) port,
+ val);)
+ LOG_outpw(port, val);
+ } else
+#endif
+ LOG_outpw(port, val);
+}
+
+/****************************************************************************
+PARAMETERS:
+port - Port to write to
+val - Value to write to port
+
+REMARKS:
+Performs an emulated 32-bit write to an I/O port. We handle special cases
+that we need to emulate in here, and fall through to reflecting the write
+through to the real hardware if we don't need to special case it.
+****************************************************************************/
+void X86API BE_outl(X86EMU_pioAddr port, u32 val)
+{
+#if defined(DEBUG) || !defined(__i386__)
+ if (IS_PCI_PORT(port))
+ PCI_outp(port, val, REG_WRITE_DWORD);
+ else if (port < 0x100) {
+ DB(printf("WARN: INVALID outl.%04X <- %08X\n", (u16) port,val);)
+ LOG_outpd(port, val);
+ } else
+#endif
+ LOG_outpd(port, val);
+}
+#endif