| Current Path : /usr/src/sys/i386/xbox/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/sys/i386/xbox/pic16l.s |
/*- * Copyright (c) 2005 Rink Springer * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: release/9.1.0/sys/i386/xbox/pic16l.s 152219 2005-11-09 03:55:40Z imp $ */ #include <machine/asmacros.h> .text /* * send a command to the PIC16L * * void pic16l_setbyte (int addr, int reg, int data) * */ ENTRY(pic16l_setbyte) push %ebp mov %esp,%ebp push %ebx movw $0xc000,%dx 1: xor %eax,%eax inw %dx,%ax shr $0x0b,%eax and $0x01,%eax test %eax,%eax jne 1b mov $50,%ecx 2: movw $0xc004,%dx movl 0x8(%ebp),%eax outb %al,%dx movw $0xc008,%dx movl 0xc(%ebp),%eax outb %al,%dx movw $0xc006,%dx movl 0x10(%ebp),%eax outw %ax,%dx movw $0xc000,%dx inw %dx,%ax outw %ax,%dx movw $0xc002,%dx movb $0x1a,%al outb %al,%dx movw $0xc000,%dx 3: inb %dx,%al movb %al,%bl orb $0x36,%al jz 3b orb $0x10,%bl jnz 5f 4: push %ecx xor %ecx,%ecx l: loop l pop %ecx dec %ecx jz 5f jmp 2b 5: pop %ebx leave ret /* * instructs the pic16l to reboot the xbox * * void pic16l_reboot(); * */ ENTRY(pic16l_reboot) pushl $0x01 pushl $0x02 pushl $0x20 call pic16l_setbyte addl $12,%esp ret /* * instructs the pic16l to power-off the xbox * * void pic16l_poweroff(); * */ ENTRY(pic16l_poweroff) pushl $0x80 pushl $0x02 pushl $0x20 call pic16l_setbyte addl $12,%esp ret pic16l_ledhlp: movw $0xc000,%dx 1: xor %eax,%eax inw %dx,%ax shr $0x0b,%eax and $0x01,%eax test %eax,%eax jne 1b mov $400,%ecx 2: movw $0xc004,%dx movb $0x20,%al outb %al,%dx movw $0xc008,%dx movb %bh,%al outb %al,%dx movw $0xc006,%dx movb %bl,%al outb %al,%dx movw $0xc000,%dx inw %dx,%ax outw %ax,%dx movw $0xc002,%dx movb $0x1a,%al outb %al,%dx movw $0xc000,%dx 3: inb %dx,%al movb %al,%bl orb $0x36,%al jz 3b orb $0x10,%bl jz 4f ret 4: push %ecx xor %ecx,%ecx l2: loop l2 pop %ecx dec %ecx jz 5f jmp 2b 5: ret /* * changes the front led * * void pic16l_setled (int val); */ ENTRY(pic16l_setled) push %ebp mov %esp,%ebp push %ebx movl 0x8(%ebp),%ebx orl $0x800,%ebx call pic16l_ledhlp movl $0x701,%ebx call pic16l_ledhlp pop %ebx leave ret