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New files -- Kinetis variant documentation. [Bug 1001580]
author vae
date Fri, 18 May 2012 21:27:23 +0000
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1 #ifndef CYGONCE_KERNEL_CLOCK_INL
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2 #define CYGONCE_KERNEL_CLOCK_INL
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3
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4 //==========================================================================
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5 //
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6 // clock.inl
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7 //
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8 // Clock and Alarm class inlines
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9 //
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10 //==========================================================================
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11 // ####ECOSGPLCOPYRIGHTBEGIN####
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12 // -------------------------------------------
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13 // This file is part of eCos, the Embedded Configurable Operating System.
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14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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15 //
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16 // eCos is free software; you can redistribute it and/or modify it under
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17 // the terms of the GNU General Public License as published by the Free
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18 // Software Foundation; either version 2 or (at your option) any later
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19 // version.
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20 //
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21 // eCos is distributed in the hope that it will be useful, but WITHOUT
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22 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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23 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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24 // for more details.
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25 //
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26 // You should have received a copy of the GNU General Public License
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27 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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28 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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29 //
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30 // As a special exception, if other files instantiate templates or use
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31 // macros or inline functions from this file, or you compile this file
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32 // and link it with other works to produce a work based on this file,
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33 // this file does not by itself cause the resulting work to be covered by
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34 // the GNU General Public License. However the source code for this file
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35 // must still be made available in accordance with section (3) of the GNU
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36 // General Public License v2.
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37 //
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38 // This exception does not invalidate any other reasons why a work based
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39 // on this file might be covered by the GNU General Public License.
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40 // -------------------------------------------
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41 // ####ECOSGPLCOPYRIGHTEND####
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42 //==========================================================================
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43 //#####DESCRIPTIONBEGIN####
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44 //
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45 // Author(s): nickg
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46 // Contributors: nickg
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47 // Date: 1997-09-30
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48 // Purpose: Define Clock and Alarm class inlines
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49 // Description: Define inline functions for counter, clock and alarm
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50 // classes.
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51 // Usage: #include <cyg/kernel/clock.hxx>
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52 // #include <cyg/kernel/clock.inl>
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53 //
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54 //####DESCRIPTIONEND####
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55 //
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56 //==========================================================================
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57
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58 #include <cyg/kernel/clock.hxx>
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59
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60 // -------------------------------------------------------------------------
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61 // -------------------------------------------------------------------------
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62 // Counter class inlines
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63
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64 // Return current value of counter
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65 inline cyg_tick_count Cyg_Counter::current_value()
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66 {
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67 return counter;
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68 }
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69
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70 inline cyg_uint32 Cyg_Counter::current_value_lo()
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71 {
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72 return counter&0xFFFFFFFF;
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73 }
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74
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75 inline cyg_uint32 Cyg_Counter::current_value_hi()
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76 {
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77 return (counter>>32)&0xFFFFFFFF;
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78 }
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79
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80 // Set the counter's current value
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81 inline void Cyg_Counter::set_value( cyg_tick_count new_value)
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82 {
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83 counter = new_value;
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84 }
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85
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86 // -------------------------------------------------------------------------
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87 // -------------------------------------------------------------------------
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88 // Clock class inlines
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89
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90 // Return current resolution
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91 inline Cyg_Clock::cyg_resolution Cyg_Clock::get_resolution()
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92 {
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93 return resolution;
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94 }
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95
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96 // Set new resolution
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97 inline void Cyg_Clock::set_resolution(
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98 Cyg_Clock::cyg_resolution new_resolution
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99 )
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100 {
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101 resolution = new_resolution;
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102 }
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103
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104 inline cyg_tick_count Cyg_Clock::convert(
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105 cyg_tick_count value,
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106 struct converter *pcc )
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107 {
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108 cyg_uint64 t = (cyg_uint64)value;
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109 // Do this in an order to prevent overflow at the expense of
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110 // accuracy:
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111 t *= pcc->mul1;
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112 t += pcc->div1 / 2;
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113 t /= pcc->div1;
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114 t *= pcc->mul2;
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115 t += pcc->div2 / 2;
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116 t /= pcc->div2;
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117 // The alternative would be to do the 2 multiplies first
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118 // for smaller arguments.
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119 return (cyg_tick_count)t;
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120 }
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121
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122 // -------------------------------------------------------------------------
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123 #endif // ifndef CYGONCE_KERNEL_CLOCK_INL
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124 // EOF clock.inl