diff options
Diffstat (limited to 'qemu/roms/openbios/utils/devbios/procfs.c')
| -rw-r--r-- | qemu/roms/openbios/utils/devbios/procfs.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/qemu/roms/openbios/utils/devbios/procfs.c b/qemu/roms/openbios/utils/devbios/procfs.c new file mode 100644 index 000000000..12ad17e3e --- /dev/null +++ b/qemu/roms/openbios/utils/devbios/procfs.c @@ -0,0 +1,162 @@ +/* + * OpenBIOS - free your system! + * ( firmware/flash device driver for Linux ) + * + * procfs.c - proc filesystem handling for flash device listing. + * + * This program is part of a free implementation of the IEEE 1275-1994 + * Standard for Boot (Initialization Configuration) Firmware. + * + * Copyright (C) 1998-2004 Stefan Reinauer, <stepan@openbios.org> + * + * 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + * + */ + +#include <linux/config.h> +#include <linux/version.h> +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) && defined(MODVERSIONS) +#include <linux/modversions.h> +#endif +#include <linux/proc_fs.h> + +#ifdef CONFIG_PROC_FS +#include "bios.h" +#include "pcisets.h" +#include "flashchips.h" +#include "programming.h" + +struct proc_dir_entry *proc_bios; + +#define PRINT_PROC(fmt,args...) \ + do { \ + if (!run) \ + break; \ + len += sprintf( buffer+len, fmt, ##args ); \ + if (begin + len > offset + size) \ + run=0; \ + else if (begin + len < offset) { \ + begin += len; \ + len = 0; \ + } \ + } while (0) + +/* + * ****************************************** + * + * /proc/bios handling + * + * ****************************************** + */ + +#define CFLASH flashdevices[i] +#define FLASH flashchips[CFLASH.flashnum] +#define MANUF manufacturers[CFLASH.manufnum] + +int bios_read_proc(char *buffer, char **start, off_t offset, int size, int *eof, void *data) +{ + int len=0, run=1, i; + off_t begin = 0; + + for (i=0;i<flashcount;i++) { +#ifdef DEBUG_PROC + printk(KERN_DEBUG "BIOS: processing proc info for " + "flashchip %d\n",i+1); +#endif + if (i) /* empty line is seperator between flash chips */ + PRINT_PROC("\n"); + + PRINT_PROC("Memory Address : 0x%08lx\n", + (unsigned long)CFLASH.physical); + PRINT_PROC("Memory Size : %d kByte\n", CFLASH.size>>10); + PRINT_PROC("Flash Type : "); + + if (CFLASH.id == 0) { + PRINT_PROC("ROM\n"); + continue; + } + + /* Flash chip completely unknown -> output ID and proceed */ + if (FLASH.id == 0) { + PRINT_PROC("unknown %s device (id 0x%04x)\n", + MANUF.name, CFLASH.id); + PRINT_PROC("Supported : no\n"); + continue; + } + + PRINT_PROC("%s %s (%dV)\n", MANUF.name, + FLASH.name, FLASH.voltage); + + PRINT_PROC("Supported : %s\n", + FLASH.supported ? "yes": "no"); +#ifdef DEBUG + PRINT_PROC("Pagetable : %d Byte\n", FLASH.pagesize ); + + PRINT_PROC("Erase first : %s\n", + FLASH.flags & f_needs_erase ? "yes": "no"); + + PRINT_PROC("Intel compliant : %s\n", + FLASH.flags & f_intel_compl ? "yes": "no"); + + PRINT_PROC("FWH compliant : %s\n", + FLASH.flags & f_fwh_compl ? "yes": "no"); + + if (CFLASH.sectors > 1) + PRINT_PROC("Sectors : %d\n", CFLASH.sectors); +#endif + } +#ifdef DEBUG_PROC + printk(KERN_DEBUG "BIOS: read_proc done.\n"); +#endif + /* set to 1 if we're done */ + *eof=run; + + if (offset >= begin + len) + return 0; + + *start = buffer + (begin - offset); + + return (size < begin + len - offset ? size : begin + len - offset); +} +#undef FLASH +#undef MANUF +#undef CFLASH + +#ifdef PROC_WRITEABLE +int bios_write_proc(struct file *file, const char *buffer, unsigned long count, void *data) +{ + printk (KERN_INFO "%s\n",buffer); + return count; +} +#endif + +int bios_proc_register(void) +{ + if ((proc_bios = create_proc_entry("bios", 0, 0))) { + proc_bios->read_proc = bios_read_proc; +#ifdef PROC_WRITABLE + proc_bios->write_proc = bios_write_proc; +#endif + return 0; + } + return 1; +} + +int bios_proc_unregister(void) +{ + if (proc_bios) + remove_proc_entry("bios", 0); + return 0; +} +#endif |