| 0,0 → 1,68 |
|---|
| /* |
| * Copyright (C) 2006 Martin Decky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - 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. |
| * - 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. |
| */ |
| |
| #include <arch/drivers/cuda.h> |
| #include <arch/asm.h> |
| |
| #define CUDA_PACKET 0x01 |
| #define CUDA_POWERDOWN 0x0a |
| |
| #define RS 0x200 |
| #define B (0 * RS) |
| #define A (1 * RS) |
| #define SR (10 * RS) |
| #define ACR (11 * RS) |
| |
| #define SR_OUT 0x10 |
| #define TACK 0x10 |
| #define TIP 0x20 |
| |
| |
| static volatile __u8 *cuda = (__u8 *) 0xf2000000; |
| |
| |
| static void cuda_packet(const __u8 data) |
| { |
| cuda[B] = cuda[B] | TIP; |
| cuda[ACR] = cuda[ACR] | SR_OUT; |
| cuda[SR] = CUDA_PACKET; |
| cuda[B] = cuda[B] & ~TIP; |
| |
| cuda[ACR] = cuda[ACR] | SR_OUT; |
| cuda[SR] = data; |
| cuda[B] = cuda[B] | TACK; |
| |
| cuda[B] = cuda[B] | TIP; |
| } |
| |
| |
| void cpu_halt(void) { |
| cuda_packet(CUDA_POWERDOWN); |
| |
| cpu_sleep(); |
| } |