4.104.115
Last change
on this file since de49de6 was
de49de6,
checked in by Joel Sherrill <joel.sherrill@…>, on 10/02/08 at 17:27:07
|
2008-10-02 Joel Sherrill <joel.sherrill@…>
- console/config.c, console/console.c, console/console.h,
console/ns16550cfg.c, console/ns16550cfg.h, include/bsp.h,
include/tm27.h, irq/irq_init.c, irq/openpic_xxx_irq.c,
pci/no_host_bridge.c: File head clean up.
- console/debugio.c: Removed.
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-
Property mode set to
100644
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File size:
1.1 KB
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Line | |
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1 | /* |
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2 | * This include file contains all console driver definations for the nc16550 |
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3 | * |
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4 | * COPYRIGHT (c) 1989-2008. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.rtems.com/license/LICENSE. |
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10 | * |
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11 | * $Id$ |
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12 | */ |
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13 | |
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14 | #include <rtems.h> |
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15 | #include <bsp.h> |
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16 | #include "console.h" |
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17 | |
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18 | typedef struct uart_reg |
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19 | { |
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20 | unsigned char reg; |
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21 | unsigned char pad[7]; |
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22 | } uartReg; |
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23 | |
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24 | uint8_t Read_ns16550_register( |
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25 | uint32_t ulCtrlPort, |
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26 | uint8_t ucRegNum |
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27 | ) |
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28 | { |
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29 | volatile struct uart_reg *p = (volatile struct uart_reg *)ulCtrlPort; |
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30 | uint8_t ucData; |
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31 | ucData = p[ucRegNum].reg; |
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32 | asm volatile("sync"); |
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33 | return ucData; |
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34 | } |
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35 | |
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36 | void Write_ns16550_register( |
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37 | uint32_t ulCtrlPort, |
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38 | uint8_t ucRegNum, |
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39 | uint8_t ucData |
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40 | ) |
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41 | { |
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42 | volatile struct uart_reg *p = (volatile struct uart_reg *)ulCtrlPort; |
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43 | volatile int i; |
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44 | p[ucRegNum].reg = ucData; |
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45 | asm volatile("sync"); |
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46 | asm volatile("isync"); |
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47 | asm volatile("eieio"); |
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48 | for (i=0;i<0x08ff;i++) |
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49 | asm volatile("isync"); |
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50 | } |
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