| wdenk | 78f6622 | 2002-08-27 10:27:51 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2000 |
| 3 | * Rob Taylor, Flying Pig Systems. robt@flyingpig.com. |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <common.h> |
| 25 | |
| 26 | #ifdef CFG_NS16550_SERIAL |
| 27 | |
| 28 | #include <ns16550.h> |
| 29 | #ifdef CFG_NS87308 |
| 30 | #include <ns87308.h> |
| 31 | #endif |
| 32 | |
| 33 | #if CONFIG_CONS_INDEX == 1 |
| 34 | static NS16550_t console = (NS16550_t) CFG_NS16550_COM1; |
| 35 | #elif CONFIG_CONS_INDEX == 2 |
| 36 | static NS16550_t console = (NS16550_t) CFG_NS16550_COM2; |
| 37 | #elif CONFIG_CONS_INDEX == 3 |
| 38 | static NS16550_t console = (NS16550_t) CFG_NS16550_COM3; |
| 39 | #elif CONFIG_CONS_INDEX == 4 |
| 40 | static NS16550_t console = (NS16550_t) CFG_NS16550_COM4; |
| 41 | #else |
| 42 | #error no valid console defined |
| 43 | #endif |
| 44 | |
| 45 | int serial_init (void) |
| 46 | { |
| 47 | DECLARE_GLOBAL_DATA_PTR; |
| 48 | |
| 49 | int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate; |
| 50 | |
| 51 | #ifdef CFG_NS87308 |
| 52 | initialise_ns87308(); |
| 53 | #endif |
| 54 | |
| 55 | NS16550_init(console, clock_divisor); |
| 56 | |
| 57 | return (0); |
| 58 | } |
| 59 | |
| 60 | void |
| 61 | serial_putc(const char c) |
| 62 | { |
| 63 | if (c == '\n') |
| 64 | NS16550_putc(console, '\r'); |
| 65 | |
| 66 | NS16550_putc(console, c); |
| 67 | } |
| 68 | |
| 69 | void |
| 70 | serial_puts (const char *s) |
| 71 | { |
| 72 | while (*s) { |
| 73 | serial_putc (*s++); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | |
| 78 | int |
| 79 | serial_getc(void) |
| 80 | { |
| 81 | return NS16550_getc(console); |
| 82 | } |
| 83 | |
| 84 | int |
| 85 | serial_tstc(void) |
| 86 | { |
| 87 | return NS16550_tstc(console); |
| 88 | } |
| 89 | |
| 90 | void |
| 91 | serial_setbrg (void) |
| 92 | { |
| 93 | DECLARE_GLOBAL_DATA_PTR; |
| 94 | |
| 95 | int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate; |
| 96 | |
| 97 | NS16550_reinit(console, clock_divisor); |
| 98 | } |
| 99 | |
| 100 | #endif |