diff options
Diffstat (limited to 'tools/ioemu/iodev/pci2isa.cc')
-rw-r--r-- | tools/ioemu/iodev/pci2isa.cc | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/tools/ioemu/iodev/pci2isa.cc b/tools/ioemu/iodev/pci2isa.cc new file mode 100644 index 0000000000..54c3bc441a --- /dev/null +++ b/tools/ioemu/iodev/pci2isa.cc @@ -0,0 +1,294 @@ +///////////////////////////////////////////////////////////////////////// +// $Id: pci2isa.cc,v 1.10 2003/07/31 19:51:42 vruppert Exp $ +///////////////////////////////////////////////////////////////////////// +// +// Copyright (C) 2002 MandrakeSoft S.A. +// +// MandrakeSoft S.A. +// 43, rue d'Aboukir +// 75002 Paris - France +// http://www.linux-mandrake.com/ +// http://www.mandrakesoft.com/ +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Lesser General Public +// License as published by the Free Software Foundation; either +// version 2 of the License, or (at your option) any later version. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +// +// i440FX Support - PCI-to-ISA bridge (PIIX3) +// + +// Define BX_PLUGGABLE in files that can be compiled into plugins. For +// platforms that require a special tag on exported symbols, BX_PLUGGABLE +// is used to know when we are exporting symbols and when we are importing. +#define BX_PLUGGABLE + +#include "bochs.h" +#if BX_PCI_SUPPORT + +#define LOG_THIS thePci2IsaBridge-> + +bx_pci2isa_c *thePci2IsaBridge = NULL; + + int +libpci2isa_LTX_plugin_init(plugin_t *plugin, plugintype_t type, int argc, char *argv[]) +{ + thePci2IsaBridge = new bx_pci2isa_c (); + bx_devices.pluginPci2IsaBridge = thePci2IsaBridge; + BX_REGISTER_DEVICE_DEVMODEL(plugin, type, thePci2IsaBridge, BX_PLUGIN_PCI2ISA); + return(0); // Success +} + + void +libpci2isa_LTX_plugin_fini(void) +{ +} + +bx_pci2isa_c::bx_pci2isa_c(void) +{ + put("P2I"); + settype(PCI2ISALOG); +} + +bx_pci2isa_c::~bx_pci2isa_c(void) +{ + // nothing for now + BX_DEBUG(("Exit.")); +} + + + void +bx_pci2isa_c::init(void) +{ + // called once when bochs initializes + + DEV_register_pci_handlers(this, pci_read_handler, pci_write_handler, + BX_PCI_DEVICE(1,0), "PIIX3 PCI-to-ISA bridge"); + + DEV_register_iowrite_handler(this, write_handler, 0x00B2, "PIIX3 PCI-to-ISA bridge", 1); + DEV_register_iowrite_handler(this, write_handler, 0x00B3, "PIIX3 PCI-to-ISA bridge", 1); + DEV_register_iowrite_handler(this, write_handler, 0x04D0, "PIIX3 PCI-to-ISA bridge", 1); + DEV_register_iowrite_handler(this, write_handler, 0x04D1, "PIIX3 PCI-to-ISA bridge", 1); + DEV_register_iowrite_handler(this, write_handler, 0x0CF9, "PIIX3 PCI-to-ISA bridge", 1); + + DEV_register_ioread_handler(this, read_handler, 0x00B2, "PIIX3 PCI-to-ISA bridge", 1); + DEV_register_ioread_handler(this, read_handler, 0x00B3, "PIIX3 PCI-to-ISA bridge", 1); + DEV_register_ioread_handler(this, read_handler, 0x04D0, "PIIX3 PCI-to-ISA bridge", 1); + DEV_register_ioread_handler(this, read_handler, 0x04D1, "PIIX3 PCI-to-ISA bridge", 1); + DEV_register_ioread_handler(this, read_handler, 0x0CF9, "PIIX3 PCI-to-ISA bridge", 1); + + for (unsigned i=0; i<256; i++) + BX_P2I_THIS s.pci_conf[i] = 0x0; + // readonly registers + BX_P2I_THIS s.pci_conf[0x00] = 0x86; + BX_P2I_THIS s.pci_conf[0x01] = 0x80; + BX_P2I_THIS s.pci_conf[0x02] = 0x00; + BX_P2I_THIS s.pci_conf[0x03] = 0x70; + BX_P2I_THIS s.pci_conf[0x0a] = 0x01; + BX_P2I_THIS s.pci_conf[0x0b] = 0x06; + BX_P2I_THIS s.pci_conf[0x0e] = 0x80; +} + + void +bx_pci2isa_c::reset(unsigned type) +{ + BX_P2I_THIS s.pci_conf[0x04] = 0x07; + BX_P2I_THIS s.pci_conf[0x05] = 0x00; + BX_P2I_THIS s.pci_conf[0x06] = 0x00; + BX_P2I_THIS s.pci_conf[0x07] = 0x02; + BX_P2I_THIS s.pci_conf[0x4c] = 0x4d; + BX_P2I_THIS s.pci_conf[0x4e] = 0x03; + BX_P2I_THIS s.pci_conf[0x4f] = 0x00; + BX_P2I_THIS s.pci_conf[0x60] = 0x80; + BX_P2I_THIS s.pci_conf[0x69] = 0x02; + BX_P2I_THIS s.pci_conf[0x70] = 0x80; + BX_P2I_THIS s.pci_conf[0x76] = 0x0c; + BX_P2I_THIS s.pci_conf[0x77] = 0x0c; + BX_P2I_THIS s.pci_conf[0x78] = 0x02; + BX_P2I_THIS s.pci_conf[0x79] = 0x00; + BX_P2I_THIS s.pci_conf[0x80] = 0x00; + BX_P2I_THIS s.pci_conf[0x82] = 0x00; + BX_P2I_THIS s.pci_conf[0xa0] = 0x08; + BX_P2I_THIS s.pci_conf[0xa0] = 0x08; + BX_P2I_THIS s.pci_conf[0xa2] = 0x00; + BX_P2I_THIS s.pci_conf[0xa3] = 0x00; + BX_P2I_THIS s.pci_conf[0xa4] = 0x00; + BX_P2I_THIS s.pci_conf[0xa5] = 0x00; + BX_P2I_THIS s.pci_conf[0xa6] = 0x00; + BX_P2I_THIS s.pci_conf[0xa7] = 0x00; + BX_P2I_THIS s.pci_conf[0xa8] = 0x0f; + BX_P2I_THIS s.pci_conf[0xaa] = 0x00; + BX_P2I_THIS s.pci_conf[0xab] = 0x00; + BX_P2I_THIS s.pci_conf[0xac] = 0x00; + BX_P2I_THIS s.pci_conf[0xae] = 0x00; + + BX_P2I_THIS s.elcr1 = 0x00; + BX_P2I_THIS s.elcr2 = 0x00; +} + + + + // static IO port read callback handler + // redirects to non-static class handler to avoid virtual functions + + Bit32u +bx_pci2isa_c::read_handler(void *this_ptr, Bit32u address, unsigned io_len) +{ +#if !BX_USE_P2I_SMF + bx_pci2isa_c *class_ptr = (bx_pci2isa_c *) this_ptr; + + return( class_ptr->read(address, io_len) ); +} + + + Bit32u +bx_pci2isa_c::read(Bit32u address, unsigned io_len) +{ +#else + UNUSED(this_ptr); +#endif // !BX_USE_P2I_SMF + + switch (address) { + case 0x00b2: + BX_ERROR(("read: APM command register not supported yet")); + break; + case 0x00b3: + BX_ERROR(("read: APM status register not supported yet")); + break; + case 0x04d0: + return(BX_P2I_THIS s.elcr1); + break; + case 0x04d1: + return(BX_P2I_THIS s.elcr2); + break; + case 0x0cf9: + BX_ERROR(("read: CPU reset register not supported yet")); + break; + } + + return(0xffffffff); +} + + + // static IO port write callback handler + // redirects to non-static class handler to avoid virtual functions + + void +bx_pci2isa_c::write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len) +{ +#if !BX_USE_P2I_SMF + bx_pci2isa_c *class_ptr = (bx_pci2isa_c *) this_ptr; + + class_ptr->write(address, value, io_len); +} + + void +bx_pci2isa_c::write(Bit32u address, Bit32u value, unsigned io_len) +{ +#else + UNUSED(this_ptr); +#endif // !BX_USE_P2I_SMF + + switch (address) { + case 0x00b2: + BX_ERROR(("write: APM command register not supported yet")); + break; + case 0x00b3: + BX_ERROR(("write: APM status register not supported yet")); + break; + case 0x04d0: + BX_P2I_THIS s.elcr1 = (value & 0xf8); + BX_ERROR(("write: ELCR1 changes have no effect yet")); + break; + case 0x04d1: + BX_P2I_THIS s.elcr2 = (value & 0xde); + BX_ERROR(("write: ELCR2 changes have no effect yet")); + break; + case 0x0cf9: + BX_ERROR(("write: CPU reset register not supported yet")); + break; + } +} + + + // static pci configuration space read callback handler + // redirects to non-static class handler to avoid virtual functions + + Bit32u +bx_pci2isa_c::pci_read_handler(void *this_ptr, Bit8u address, unsigned io_len) +{ +#if !BX_USE_P2I_SMF + bx_pci2isa_c *class_ptr = (bx_pci2isa_c *) this_ptr; + + return( class_ptr->pci_read(address, io_len) ); +} + + + Bit32u +bx_pci2isa_c::pci_read(Bit8u address, unsigned io_len) +{ +#else + UNUSED(this_ptr); +#endif // !BX_USE_P2I_SMF + + Bit32u value = 0; + + if (io_len <= 4) { + for (unsigned i=0; i<io_len; i++) { + value |= (BX_P2I_THIS s.pci_conf[address+i] << (i*8)); + } + BX_DEBUG(("PIIX3 PCI-to-ISA read register 0x%02x value 0x%08x", address, value)); + return value; + } + else + return(0xffffffff); +} + + + // static pci configuration space write callback handler + // redirects to non-static class handler to avoid virtual functions + + void +bx_pci2isa_c::pci_write_handler(void *this_ptr, Bit8u address, Bit32u value, unsigned io_len) +{ +#if !BX_USE_P2I_SMF + bx_pci2isa_c *class_ptr = (bx_pci2isa_c *) this_ptr; + + class_ptr->pci_write(address, value, io_len); +} + + void +bx_pci2isa_c::pci_write(Bit8u address, Bit32u value, unsigned io_len) +{ +#else + UNUSED(this_ptr); +#endif // !BX_USE_P2I_SMF + + Bit8u value8; + + if (io_len <= 4) { + for (unsigned i=0; i<io_len; i++) { + value8 = (value >> (i*8)) & 0xFF; + switch (address+i) { + case 0x06: + break; + default: + BX_P2I_THIS s.pci_conf[address+i] = value8; + BX_DEBUG(("PIIX3 PCI-to-ISA write register 0x%02x value 0x%02x", address, + value8)); + } + } + } +} + +#endif /* BX_PCI_SUPPORT */ |