Brian Swetland | dfdb461 | 2009-01-01 11:44:36 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2008, Google Inc. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in |
| 12 | * the documentation and/or other materials provided with the |
| 13 | * distribution. |
| 14 | * * Neither the name of Google, Inc. nor the names of its contributors |
| 15 | * may be used to endorse or promote products derived from this |
| 16 | * software without specific prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 22 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 25 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 26 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 27 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 28 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <debug.h> |
| 33 | #include <printf.h> |
| 34 | #include <arch/arm/dcc.h> |
Dima Zavin | e35e75b | 2009-01-15 18:09:26 -0800 | [diff] [blame] | 35 | #include <dev/fbcon.h> |
Brian Swetland | dfdb461 | 2009-01-01 11:44:36 -0800 | [diff] [blame] | 36 | #include <dev/uart.h> |
| 37 | |
Brian Swetland | 31016c4 | 2009-01-29 17:25:16 -0800 | [diff] [blame] | 38 | #ifndef WITH_DEBUG_UART3 |
| 39 | #define WITH_DEBUG_UART3 1 |
| 40 | #define DEBUG_UART 2 |
| 41 | #endif |
| 42 | |
| 43 | #ifndef WITH_DEBUG_DCC |
| 44 | #define WITH_DEBUG_DCC 0 |
| 45 | #endif |
Brian Swetland | dfdb461 | 2009-01-01 11:44:36 -0800 | [diff] [blame] | 46 | |
| 47 | void _dputc(char c) |
| 48 | { |
Brian Swetland | 31016c4 | 2009-01-29 17:25:16 -0800 | [diff] [blame] | 49 | #if WITH_DEBUG_DCC |
Brian Swetland | dfdb461 | 2009-01-01 11:44:36 -0800 | [diff] [blame] | 50 | if (c == '\n') { |
| 51 | while (dcc_putc('\r') < 0); |
| 52 | } |
| 53 | while (dcc_putc(c) < 0); |
Brian Swetland | 31016c4 | 2009-01-29 17:25:16 -0800 | [diff] [blame] | 54 | #endif |
| 55 | #if WITH_DEBUG_UART3 |
Brian Swetland | dfdb461 | 2009-01-01 11:44:36 -0800 | [diff] [blame] | 56 | uart_putc(DEBUG_UART, c); |
| 57 | #endif |
Dima Zavin | e35e75b | 2009-01-15 18:09:26 -0800 | [diff] [blame] | 58 | #if WITH_DEV_FBCON |
| 59 | fbcon_putc(c); |
| 60 | #endif |
Brian Swetland | dfdb461 | 2009-01-01 11:44:36 -0800 | [diff] [blame] | 61 | } |
| 62 | |
| 63 | int dgetc(char *c) |
| 64 | { |
Brian Swetland | c82fda9 | 2009-01-02 01:53:42 -0800 | [diff] [blame] | 65 | int n; |
Brian Swetland | 31016c4 | 2009-01-29 17:25:16 -0800 | [diff] [blame] | 66 | #if WITH_DEBUG_DCC |
Brian Swetland | c82fda9 | 2009-01-02 01:53:42 -0800 | [diff] [blame] | 67 | n = dcc_getc(); |
Brian Swetland | 31016c4 | 2009-01-29 17:25:16 -0800 | [diff] [blame] | 68 | #elif WITH_DEBUG_UART3 |
Brian Swetland | c82fda9 | 2009-01-02 01:53:42 -0800 | [diff] [blame] | 69 | n = uart_getc(DEBUG_UART, 0); |
Brian Swetland | 31016c4 | 2009-01-29 17:25:16 -0800 | [diff] [blame] | 70 | #else |
| 71 | n = -1; |
Brian Swetland | c82fda9 | 2009-01-02 01:53:42 -0800 | [diff] [blame] | 72 | #endif |
Brian Swetland | dfdb461 | 2009-01-01 11:44:36 -0800 | [diff] [blame] | 73 | if (n < 0) { |
| 74 | return -1; |
| 75 | } else { |
| 76 | *c = n; |
| 77 | return 0; |
| 78 | } |
Brian Swetland | dfdb461 | 2009-01-01 11:44:36 -0800 | [diff] [blame] | 79 | } |
| 80 | |
| 81 | void platform_halt(void) |
| 82 | { |
| 83 | dprintf(INFO, "HALT: spinning forever...\n"); |
| 84 | for(;;); |
| 85 | } |
| 86 | |
| 87 | uint32_t debug_cycle_count(void) |
| 88 | { |
Brian Swetland | c82fda9 | 2009-01-02 01:53:42 -0800 | [diff] [blame] | 89 | return 0; |
Brian Swetland | dfdb461 | 2009-01-01 11:44:36 -0800 | [diff] [blame] | 90 | } |