[444] | 1 | /* |
---|
| 2 | * Copyright (c) 2011 Aeroflex Gaisler |
---|
| 3 | * |
---|
| 4 | * BSD license: |
---|
| 5 | * |
---|
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
---|
| 7 | * of this software and associated documentation files (the "Software"), to deal |
---|
| 8 | * in the Software without restriction, including without limitation the rights |
---|
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
---|
| 10 | * copies of the Software, and to permit persons to whom the Software is |
---|
| 11 | * furnished to do so, subject to the following conditions: |
---|
| 12 | * |
---|
| 13 | * The above copyright notice and this permission notice shall be included in |
---|
| 14 | * all copies or substantial portions of the Software. |
---|
| 15 | * |
---|
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
---|
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
---|
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
---|
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
---|
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
---|
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
---|
| 22 | * THE SOFTWARE. |
---|
| 23 | */ |
---|
| 24 | |
---|
| 25 | |
---|
| 26 | #define DREADY 1 |
---|
| 27 | #define TREADY 4 |
---|
| 28 | |
---|
| 29 | extern volatile int *console; |
---|
| 30 | |
---|
| 31 | void |
---|
| 32 | outbyte (int c) |
---|
| 33 | { |
---|
| 34 | volatile int *rxstat; |
---|
| 35 | volatile int *rxadata; |
---|
| 36 | int rxmask; |
---|
| 37 | while ((console[1] & TREADY) == 0); |
---|
| 38 | console[0] = (0x0ff & c); |
---|
| 39 | if (c == '\n') |
---|
| 40 | { |
---|
| 41 | while ((console[1] & TREADY) == 0); |
---|
| 42 | console[0] = (int) '\r'; |
---|
| 43 | } |
---|
| 44 | } |
---|
| 45 | |
---|
| 46 | int |
---|
| 47 | inbyte (void) |
---|
| 48 | { |
---|
| 49 | if (!console) |
---|
| 50 | return (0); |
---|
| 51 | while (!(console[1] & DREADY)); |
---|
| 52 | return console[0]; |
---|
| 53 | } |
---|