| 1 |
2 |
marcelos |
/*
|
| 2 |
|
|
* Copyright (c) 2018, Marcelo Samsoniuk
|
| 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 are met:
|
| 7 |
|
|
*
|
| 8 |
|
|
* * Redistributions of source code must retain the above copyright notice, this
|
| 9 |
|
|
* list of conditions and the following disclaimer.
|
| 10 |
|
|
*
|
| 11 |
|
|
* * Redistributions in binary form must reproduce the above copyright notice,
|
| 12 |
|
|
* this list of conditions and the following disclaimer in the documentation
|
| 13 |
|
|
* and/or other materials provided with the distribution.
|
| 14 |
|
|
*
|
| 15 |
|
|
* * Neither the name of the copyright holder nor the names of its
|
| 16 |
|
|
* contributors may be used to endorse or promote products derived from
|
| 17 |
|
|
* this software without specific prior written permission.
|
| 18 |
|
|
*
|
| 19 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
| 20 |
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
| 21 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
| 22 |
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
| 23 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
| 24 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
| 25 |
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
| 26 |
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
| 27 |
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
| 28 |
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| 29 |
|
|
*/
|
| 30 |
|
|
|
| 31 |
|
|
#ifndef __IO__
|
| 32 |
|
|
#define __IO__
|
| 33 |
|
|
|
| 34 |
|
|
extern volatile int threads; // number of threads in the core
|
| 35 |
|
|
extern volatile int utimers; // microsecond timer
|
| 36 |
|
|
|
| 37 |
|
|
struct DARKIO {
|
| 38 |
|
|
|
| 39 |
|
|
unsigned char board_id; // 00
|
| 40 |
|
|
unsigned char board_cm; // 01
|
| 41 |
|
|
unsigned char board_ck; // 02
|
| 42 |
|
|
unsigned char irq; // 03
|
| 43 |
|
|
|
| 44 |
|
|
struct DARKUART {
|
| 45 |
|
|
|
| 46 |
|
|
unsigned char stat; // 04
|
| 47 |
|
|
unsigned char fifo; // 05
|
| 48 |
|
|
unsigned short baud; // 06/07
|
| 49 |
|
|
|
| 50 |
|
|
} uart;
|
| 51 |
|
|
|
| 52 |
|
|
unsigned short led; // 08/09
|
| 53 |
|
|
unsigned short gpio; // 0a/0b
|
| 54 |
|
|
|
| 55 |
|
|
unsigned int timer; // 0c
|
| 56 |
|
|
};
|
| 57 |
|
|
|
| 58 |
|
|
extern volatile struct DARKIO io;
|
| 59 |
|
|
|
| 60 |
|
|
extern char *board_name(int);
|
| 61 |
|
|
|
| 62 |
|
|
#ifdef __RISCV__
|
| 63 |
|
|
#define kmem 0
|
| 64 |
|
|
#else
|
| 65 |
|
|
extern unsigned char kmem[8192];
|
| 66 |
|
|
#endif
|
| 67 |
|
|
|
| 68 |
|
|
#define IRQ_TIMR 0x80
|
| 69 |
|
|
#define IRQ_UART 0x02
|
| 70 |
|
|
|
| 71 |
|
|
#endif
|
