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Diffstat (limited to 'gpxe/src/arch/i386/drivers/net/undirom.c')
-rw-r--r--gpxe/src/arch/i386/drivers/net/undirom.c234
1 files changed, 0 insertions, 234 deletions
diff --git a/gpxe/src/arch/i386/drivers/net/undirom.c b/gpxe/src/arch/i386/drivers/net/undirom.c
deleted file mode 100644
index 2463d969..00000000
--- a/gpxe/src/arch/i386/drivers/net/undirom.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <pxe.h>
-#include <realmode.h>
-#include <undirom.h>
-
-/** @file
- *
- * UNDI expansion ROMs
- *
- */
-
-/** List of all UNDI ROMs */
-static LIST_HEAD ( undiroms );
-
-/**
- * Parse PXE ROM ID structure
- *
- * @v undirom UNDI ROM
- * @v pxeromid Offset within ROM to PXE ROM ID structure
- * @ret rc Return status code
- */
-static int undirom_parse_pxeromid ( struct undi_rom *undirom,
- unsigned int pxeromid ) {
- struct undi_rom_id undi_rom_id;
- unsigned int undiloader;
-
- DBGC ( undirom, "UNDIROM %p has PXE ROM ID at %04x:%04x\n", undirom,
- undirom->rom_segment, pxeromid );
-
- /* Read PXE ROM ID structure and verify */
- copy_from_real ( &undi_rom_id, undirom->rom_segment, pxeromid,
- sizeof ( undi_rom_id ) );
- if ( undi_rom_id.Signature != UNDI_ROM_ID_SIGNATURE ) {
- DBGC ( undirom, "UNDIROM %p has bad PXE ROM ID signature "
- "%08x\n", undirom, undi_rom_id.Signature );
- return -EINVAL;
- }
-
- /* Check for UNDI loader */
- undiloader = undi_rom_id.UNDILoader;
- if ( ! undiloader ) {
- DBGC ( undirom, "UNDIROM %p has no UNDI loader\n", undirom );
- return -EINVAL;
- }
-
- /* Fill in UNDI ROM loader fields */
- undirom->loader_entry.segment = undirom->rom_segment;
- undirom->loader_entry.offset = undiloader;
- undirom->code_size = undi_rom_id.CodeSize;
- undirom->data_size = undi_rom_id.DataSize;
-
- DBGC ( undirom, "UNDIROM %p has UNDI loader at %04x:%04x "
- "(code %04zx data %04zx)\n", undirom,
- undirom->loader_entry.segment, undirom->loader_entry.offset,
- undirom->code_size, undirom->data_size );
- return 0;
-}
-
-/**
- * Parse PCI expansion header
- *
- * @v undirom UNDI ROM
- * @v pcirheader Offset within ROM to PCI expansion header
- */
-static int undirom_parse_pcirheader ( struct undi_rom *undirom,
- unsigned int pcirheader ) {
- struct pcir_header pcir_header;
-
- DBGC ( undirom, "UNDIROM %p has PCI expansion header at %04x:%04x\n",
- undirom, undirom->rom_segment, pcirheader );
-
- /* Read PCI expansion header and verify */
- copy_from_real ( &pcir_header, undirom->rom_segment, pcirheader,
- sizeof ( pcir_header ) );
- if ( pcir_header.signature != PCIR_SIGNATURE ) {
- DBGC ( undirom, "UNDIROM %p has bad PCI expansion header "
- "signature %08x\n", undirom, pcir_header.signature );
- return -EINVAL;
- }
-
- /* Fill in UNDI ROM PCI device fields */
- undirom->bus_type = PCI_NIC;
- undirom->bus_id.pci.vendor_id = pcir_header.vendor_id;
- undirom->bus_id.pci.device_id = pcir_header.device_id;
-
- DBGC ( undirom, "UNDIROM %p is for PCI devices %04x:%04x\n", undirom,
- undirom->bus_id.pci.vendor_id, undirom->bus_id.pci.device_id );
- return 0;
-
-}
-
-/**
- * Probe UNDI ROM
- *
- * @v rom_segment ROM segment address
- * @ret rc Return status code
- */
-static int undirom_probe ( unsigned int rom_segment ) {
- struct undi_rom *undirom = NULL;
- struct undi_rom_header romheader;
- size_t rom_len;
- unsigned int pxeromid;
- unsigned int pcirheader;
- int rc;
-
- /* Read expansion ROM header and verify */
- copy_from_real ( &romheader, rom_segment, 0, sizeof ( romheader ) );
- if ( romheader.Signature != ROM_SIGNATURE ) {
- rc = -EINVAL;
- goto err;
- }
- rom_len = ( romheader.ROMLength * 512 );
-
- /* Allocate memory for UNDI ROM */
- undirom = zalloc ( sizeof ( *undirom ) );
- if ( ! undirom ) {
- DBG ( "Could not allocate UNDI ROM structure\n" );
- rc = -ENOMEM;
- goto err;
- }
- DBGC ( undirom, "UNDIROM %p trying expansion ROM at %04x:0000 "
- "(%zdkB)\n", undirom, rom_segment, ( rom_len / 1024 ) );
- undirom->rom_segment = rom_segment;
-
- /* Check for and parse PXE ROM ID */
- pxeromid = romheader.PXEROMID;
- if ( ! pxeromid ) {
- DBGC ( undirom, "UNDIROM %p has no PXE ROM ID\n", undirom );
- rc = -EINVAL;
- goto err;
- }
- if ( pxeromid > rom_len ) {
- DBGC ( undirom, "UNDIROM %p PXE ROM ID outside ROM\n",
- undirom );
- rc = -EINVAL;
- goto err;
- }
- if ( ( rc = undirom_parse_pxeromid ( undirom, pxeromid ) ) != 0 )
- goto err;
-
- /* Parse PCIR header, if present */
- pcirheader = romheader.PCIRHeader;
- if ( pcirheader )
- undirom_parse_pcirheader ( undirom, pcirheader );
-
- /* Add to UNDI ROM list and return */
- DBGC ( undirom, "UNDIROM %p registered\n", undirom );
- list_add ( &undirom->list, &undiroms );
- return 0;
-
- err:
- free ( undirom );
- return rc;
-}
-
-/**
- * Create UNDI ROMs for all possible expansion ROMs
- *
- * @ret
- */
-static void undirom_probe_all_roms ( void ) {
- static int probed = 0;
- unsigned int rom_segment;
-
- /* Perform probe only once */
- if ( probed )
- return;
-
- DBG ( "Scanning for PXE expansion ROMs\n" );
-
- /* Scan through expansion ROM region at 512 byte intervals */
- for ( rom_segment = 0xc000 ; rom_segment < 0x10000 ;
- rom_segment += 0x20 ) {
- undirom_probe ( rom_segment );
- }
-
- probed = 1;
-}
-
-/**
- * Find UNDI ROM for PCI device
- *
- * @v vendor_id PCI vendor ID
- * @v device_id PCI device ID
- * @v rombase ROM base address, or 0 for any
- * @ret undirom UNDI ROM, or NULL
- */
-struct undi_rom * undirom_find_pci ( unsigned int vendor_id,
- unsigned int device_id,
- unsigned int rombase ) {
- struct undi_rom *undirom;
-
- undirom_probe_all_roms();
-
- list_for_each_entry ( undirom, &undiroms, list ) {
- if ( undirom->bus_type != PCI_NIC )
- continue;
- if ( undirom->bus_id.pci.vendor_id != vendor_id )
- continue;
- if ( undirom->bus_id.pci.device_id != device_id )
- continue;
- if ( rombase && ( ( undirom->rom_segment << 4 ) != rombase ) )
- continue;
- DBGC ( undirom, "UNDIROM %p matched PCI %04x:%04x (%08x)\n",
- undirom, vendor_id, device_id, rombase );
- return undirom;
- }
-
- DBG ( "No UNDI ROM matched PCI %04x:%04x (%08x)\n",
- vendor_id, device_id, rombase );
- return NULL;
-}
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