| /* |
| * Copyright (c) 2011 Aeroflex Gaisler |
| * |
| * BSD license: |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| |
| #define DREADY 1 |
| #define TREADY 4 |
| |
| extern volatile int *console; |
| |
| void |
| outbyte (int c) |
| { |
| volatile int *rxstat; |
| volatile int *rxadata; |
| int rxmask; |
| while ((console[1] & TREADY) == 0); |
| console[0] = (0x0ff & c); |
| if (c == '\n') |
| { |
| while ((console[1] & TREADY) == 0); |
| console[0] = (int) '\r'; |
| } |
| } |
| |
| int |
| inbyte (void) |
| { |
| if (!console) |
| return (0); |
| while (!(console[1] & DREADY)); |
| return console[0]; |
| } |