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annotate packages/hal/powerpc/sim/current/include/hal_diag.h @ 0:3111d98ba7b3 ecos-v1_1-release

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Initial commit of eCos version 1.1
author jlarmour
date Tue, 11 May 1999 11:16:07 +0000
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children 443894e2e912
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1 #ifndef CYGONCE_HAL_HAL_DIAG_H
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2 #define CYGONCE_HAL_HAL_DIAG_H
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3
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4 //=============================================================================
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5 //
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6 // hal_diag.h
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7 //
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8 // HAL Support for Kernel Diagnostic Routines
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9 //
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10 //=============================================================================
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11 //####COPYRIGHTBEGIN####
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12 //
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13 // -------------------------------------------
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14 // The contents of this file are subject to the Cygnus eCos Public License
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15 // Version 1.0 (the "License"); you may not use this file except in
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16 // compliance with the License. You may obtain a copy of the License at
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17 // http://sourceware.cygnus.com/ecos
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18 //
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19 // Software distributed under the License is distributed on an "AS IS"
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20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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21 // License for the specific language governing rights and limitations under
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22 // the License.
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23 //
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24 // The Original Code is eCos - Embedded Cygnus Operating System, released
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25 // September 30, 1998.
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26 //
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27 // The Initial Developer of the Original Code is Cygnus. Portions created
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28 // by Cygnus are Copyright (C) 1998 Cygnus Solutions. All Rights Reserved.
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29 // -------------------------------------------
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30 //
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31 //####COPYRIGHTEND####
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32 //=============================================================================
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33 //#####DESCRIPTIONBEGIN####
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34 //
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35 // Author(s): nickg
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36 // Contributors: nickg
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37 // Date: 1998-03-02
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38 // Purpose: HAL Support for Kernel Diagnostic Routines
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39 // Description: Diagnostic routines for use during kernel development.
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40 // Usage: #include <cyg/hal/hal_diag.h>
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41 //
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42 //####DESCRIPTIONEND####
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43 //
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44 //=============================================================================
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45
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46 #include <pkgconf/hal.h>
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47
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48 #include <cyg/infra/cyg_type.h>
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49
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50 //-----------------------------------------------------------------------------
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51 // Register addresses
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52
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53 #define PAL_RESET 0x00
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54 #define PAL_CPU_NR 0x04
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55 #define PAL_INT 0x08
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56 #define PAL_NR_CPU 0x0a
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57
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58 #define PAL_READ_FIFO 0x10
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59 #define PAL_READ_STATUS 0x14
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60 #define PAL_WRITE_FIFO 0x18
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61 #define PAL_WRITE_STATUS 0x1a
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62
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63 #define OEA_DEV 0xf0001000
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64
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65 //-----------------------------------------------------------------------------
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66
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67 #define HAL_DIAG_INIT()
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68
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69 #define HAL_DIAG_WRITE_CHAR(_c_) \
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70 { \
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71 volatile unsigned char *tty_buffer = \
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72 (unsigned char*)(OEA_DEV + PAL_WRITE_FIFO); \
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73 volatile unsigned char *tty_status = \
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74 (unsigned char*)(OEA_DEV + PAL_WRITE_STATUS); \
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75 if( _c_ != '\r' ) \
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76 { \
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77 while( *tty_status == 0 ) continue; \
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78 *tty_buffer = _c_; \
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79 } \
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80 }
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81
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82 #define HAL_DIAG_READ_CHAR(_c_) \
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83 { \
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84 volatile unsigned char *tty_buffer = \
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85 (unsigned char*)(OEA_DEV + PAL_READ_FIFO); \
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86 volatile unsigned char *tty_status = \
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87 (unsigned char*)(OEA_DEV + PAL_READ_STATUS); \
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88 while( *tty_status == 0 ) continue; \
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89 _c_ = *tty_buffer; \
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90 }
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91
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92 //-----------------------------------------------------------------------------
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93 // end of hal_diag.h
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94 #endif // CYGONCE_HAL_HAL_DIAG_H