From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/roms/openbios/arch/ppc/briq/briq.c | 194 ++++++++++++++++++++++++++++++++ 1 file changed, 194 insertions(+) create mode 100644 qemu/roms/openbios/arch/ppc/briq/briq.c (limited to 'qemu/roms/openbios/arch/ppc/briq/briq.c') diff --git a/qemu/roms/openbios/arch/ppc/briq/briq.c b/qemu/roms/openbios/arch/ppc/briq/briq.c new file mode 100644 index 000000000..a8541c370 --- /dev/null +++ b/qemu/roms/openbios/arch/ppc/briq/briq.c @@ -0,0 +1,194 @@ +/* + * Creation Date: <2004/08/28 18:38:22 greg> + * Time-stamp: <2004/08/28 18:38:22 greg> + * + * + * + * Copyright (C) 2004, Greg Watson + * + * derived from mol.c + * + * Copyright (C) 2003, 2004 Samuel Rydh (samuel@ibrium.se) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 + * + */ + +#include "config.h" +#include "kernel/kernel.h" +#include "arch/common/nvram.h" +#include "libc/vsprintf.h" +#include "libc/string.h" +#include "briq/briq.h" +#include + +#define UART_BASE 0x3f8 + +unsigned long virt_offset = 0; + +void +exit( int status ) +{ + for (;;); +} + +void +fatal_error( const char *err ) +{ + printk("Fatal error: %s\n", err ); + exit(0); +} + +void +panic( const char *err ) +{ + printk("Panic: %s\n", err ); + exit(0); + + /* won't come here... this keeps the gcc happy */ + for( ;; ) + ; +} + + +/************************************************************************/ +/* print using OSI interface */ +/************************************************************************/ + +static int do_indent; + +int +printk( const char *fmt, ... ) +{ + char *p, buf[1024]; + va_list args; + int i; + + va_start(args, fmt); + i = vnsprintf(buf, sizeof(buf), fmt, args); + va_end(args); + + for( p=buf; *p; p++ ) { + if( *p == '\n' ) + do_indent = 0; + if( do_indent++ == 1 ) { + putchar( '>' ); + putchar( '>' ); + putchar( ' ' ); + } + putchar( *p ); + } + return i; +} + + +/************************************************************************/ +/* TTY iface */ +/************************************************************************/ + +static int ttychar = -1; + +static int +tty_avail( void ) +{ + return 1; +} + +static int +tty_putchar( int c ) +{ + if( tty_avail() ) { + while (!(inb(UART_BASE + 0x05) & 0x20)) + ; + outb(c, UART_BASE); + while (!(inb(UART_BASE + 0x05) & 0x40)) + ; + } + return c; +} + +int +availchar( void ) +{ + if( !tty_avail() ) + return 0; + + if( ttychar < 0 ) + ttychar = inb(UART_BASE); + return (ttychar >= 0); +} + +int +getchar( void ) +{ + int ch; + + if( !tty_avail() ) + return 0; + + if( ttychar < 0 ) + return inb(UART_BASE); + ch = ttychar; + ttychar = -1; + return ch; +} + +int +putchar( int c ) +{ + if (c == '\n') + tty_putchar('\r'); + return tty_putchar(c); +} + + +/************************************************************************/ +/* briQ specific stuff */ +/************************************************************************/ + +static char nvram[2048]; + +void +dump_nvram(void) +{ + static char hexdigit[] = "0123456789abcdef"; + int i; + for (i = 0; i < 16*4; i++) + { + printk ("%c", hexdigit[nvram[i] >> 4]); + printk ("%c", hexdigit[nvram[i] % 16]); + if (!((i + 1) % 16)) + { + printk ("\n"); + } + else + { + printk (" "); + } + } +} + + +int +arch_nvram_size( void ) +{ + return sizeof(nvram); +} + +void +arch_nvram_put( char *buf ) +{ + memcpy(nvram, buf, sizeof(nvram)); + printk("new nvram:\n"); + dump_nvram(); +} + +void +arch_nvram_get( char *buf ) +{ + memcpy(buf, nvram, sizeof(nvram)); + printk("current nvram:\n"); + dump_nvram(); +} -- cgit 1.2.3-korg