1 | /* canbus.h |
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2 | * |
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3 | * This include file contains all canbus IO definitions |
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4 | * |
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5 | * Written by Jay Monkman (jmonkman@frasca.com) |
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6 | * |
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7 | * COPYRIGHT (c) 1998 |
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8 | * Frasca International, Inc. |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.OARcorp.com/rtems/license.html. |
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13 | * |
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14 | * $Id: |
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15 | */ |
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16 | |
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17 | #ifndef __CANBUS_H_ |
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18 | #define __CANBUS_H_ |
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19 | |
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20 | #include <rtems.h> |
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21 | |
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22 | typedef struct i82527_msg_t_ { |
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23 | rtems_unsigned8 ctrl0 __attribute__ ((packed)); /* Control 0 register */ |
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24 | rtems_unsigned8 ctrl1 __attribute__ ((packed)); /* Control 1 register */ |
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25 | rtems_unsigned32 arb __attribute__ ((packed)); /* Arbitration reg */ |
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26 | rtems_unsigned8 cfg __attribute__ ((packed)); /* Message config reg */ |
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27 | rtems_unsigned8 data[8] __attribute__ ((packed)); /* Actual message */ |
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28 | } i82527_msg_t; |
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29 | |
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30 | typedef struct i82527_t_ { |
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31 | rtems_unsigned8 ctrl __attribute__ ((packed)); /* Control register */ |
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32 | rtems_unsigned8 status __attribute__ ((packed)); /* Status register */ |
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33 | rtems_unsigned8 cir __attribute__ ((packed)); /* CPU interface reg */ |
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34 | rtems_unsigned8 _res0 __attribute__ ((packed)); |
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35 | rtems_unsigned16 hsr __attribute__ ((packed)); /* High speed read */ |
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36 | rtems_unsigned16 gms __attribute__ ((packed)); /* Global Mask - std */ |
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37 | rtems_unsigned32 gml __attribute__ ((packed)); /* Global Mask - long */ |
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38 | rtems_unsigned32 mlm __attribute__ ((packed)); /* Mask last message */ |
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39 | i82527_msg_t msg1 __attribute__ ((packed)); /* Message 1 */ |
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40 | rtems_unsigned8 clkout __attribute__ ((packed)); /* CLKOUT register */ |
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41 | i82527_msg_t msg2 __attribute__ ((packed)); /* Message 2 */ |
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42 | rtems_unsigned8 bcr __attribute__ ((packed)); /* Bus config register */ |
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43 | i82527_msg_t msg3 __attribute__ ((packed)); /* Message 3 */ |
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44 | rtems_unsigned8 btr0 __attribute__ ((packed)); /* Bit timing reg 0 */ |
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45 | i82527_msg_t msg4 __attribute__ ((packed)); /* Message 4 */ |
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46 | rtems_unsigned8 btr1 __attribute__ ((packed)); /* Bit timing reg 1 */ |
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47 | i82527_msg_t msg5 __attribute__ ((packed)); /* Message 5 */ |
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48 | rtems_unsigned8 intr __attribute__ ((packed)); /* Interrupt register */ |
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49 | i82527_msg_t msg6 __attribute__ ((packed)); /* Message 6 */ |
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50 | rtems_unsigned8 _res1 __attribute__ ((packed)); |
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51 | i82527_msg_t msg7 __attribute__ ((packed)); /* Message 7 */ |
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52 | rtems_unsigned8 _res2 __attribute__ ((packed)); |
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53 | i82527_msg_t msg8 __attribute__ ((packed)); /* Message 8 */ |
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54 | rtems_unsigned8 _res3 __attribute__ ((packed)); |
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55 | i82527_msg_t msg9 __attribute__ ((packed)); /* Message 9 */ |
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56 | rtems_unsigned8 p1conf __attribute__ ((packed)); /* Port 1 config */ |
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57 | i82527_msg_t msg10 __attribute__ ((packed)); /* Message 10 */ |
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58 | rtems_unsigned8 p2conf __attribute__ ((packed)); /* Port 2 config */ |
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59 | i82527_msg_t msg11 __attribute__ ((packed)); /* Message 11 */ |
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60 | rtems_unsigned8 p1in __attribute__ ((packed)); /* Port 1 in */ |
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61 | i82527_msg_t msg12 __attribute__ ((packed)); /* Message 12 */ |
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62 | rtems_unsigned8 p2in __attribute__ ((packed)); /* Port 2 in */ |
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63 | i82527_msg_t msg13 __attribute__ ((packed)); /* Message 13 */ |
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64 | rtems_unsigned8 p1out __attribute__ ((packed)); /* Port 1 out */ |
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65 | i82527_msg_t msg14 __attribute__ ((packed)); /* Message 14 */ |
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66 | rtems_unsigned8 p2out __attribute__ ((packed)); /* Port 2 out */ |
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67 | i82527_msg_t msg15 __attribute__ ((packed)); /* Message 15 */ |
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68 | rtems_unsigned8 sra __attribute__ ((packed)); /* Serial reset address */ |
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69 | } i82527_t; |
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70 | |
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71 | #define I82527_CTRL_CCE (1<<6) |
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72 | #define I82527_CTRL_EIE (1<<3) |
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73 | #define I82527_CTRL_SIE (1<<2) |
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74 | #define I82527_CTRL_IE (1<<1) |
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75 | #define I82527_CTRL_INIT (1) |
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76 | #define I82527_STATUS_BOFF (1<<7) |
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77 | #define I82527_STATUS_WARN (1<<6) |
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78 | #define I82527_STATUS_WAKE (1<<5) |
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79 | #define I82527_STATUS_RXOK (1<<4) |
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80 | #define I82527_STATUS_TXOK (1<<3) |
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81 | #define I82527_STATUS_LEC (7) |
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82 | #define I82527_STATUS_LEC_NONE 0 |
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83 | #define I82527_STATUS_LEC_STUFF 1 |
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84 | #define I82527_STATUS_LEC_FORM 2 |
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85 | #define I82527_STATUS_LEC_ACK 3 |
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86 | #define I82527_STATUS_LEC_BIT1 4 |
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87 | #define I82527_STATUS_LEC_BIT0 5 |
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88 | #define I82527_STATUS_LEC_CRC 6 |
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89 | #define I82527_CIR_RSTSTAT (1<<7) |
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90 | #define I82527_CIR_DSC (1<<6) |
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91 | #define I82527_CIR_DMC (1<<5) |
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92 | #define I82527_CIR_PWD (1<<4) |
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93 | #define I82527_CIR_SLEEP (1<<3) |
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94 | #define I82527_CIR_MUX (1<<2) |
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95 | #define I82527_CIR_CEN (1) |
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96 | #define I82527_CLKOUT_SL1 (1<<5) |
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97 | #define I82527_CLKOUT_SLO (1<<4) |
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98 | #define I82527_BCR_COBY (1<<6) |
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99 | #define I82527_BCR_POL (1<<5) |
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100 | #define I82527_DCT1 (1<<3) |
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101 | #define I82527_DCR1 (1<<1) |
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102 | #define I82527_DCR0 (1) |
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103 | #define I82527_BTR1_SPL (1<<7) |
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104 | #define I82527_MSG_CTRL_MSGVAL (2<<6) |
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105 | #define I82527_MSG_CTRL_MSGVAL_NC (3<<6) |
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106 | #define I82527_MSG_CTRL_MSGVAL_SET (2<<6) |
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107 | #define I82527_MSG_CTRL_MSGVAL_CLR (1<<6) |
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108 | #define I82527_MSG_CTRL_TXIE (2<<4) |
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109 | #define I82527_MSG_CTRL_TXIE_NC (3<<4) |
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110 | #define I82527_MSG_CTRL_TXIE_SET (2<<4) |
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111 | #define I82527_MSG_CTRL_TXIE_CLR (1<<4) |
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112 | #define I82527_MSG_CTRL_RXIE (2<<2) |
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113 | #define I82527_MSG_CTRL_RXIE_NC (3<<2) |
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114 | #define I82527_MSG_CTRL_RXIE_SET (2<<2) |
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115 | #define I82527_MSG_CTRL_RXIE_CLR (1<<2) |
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116 | #define I82527_MSG_CTRL_INTPND (2) |
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117 | #define I82527_MSG_CTRL_INTPND_NC (3) |
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118 | #define I82527_MSG_CTRL_INTPND_SET (2) |
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119 | #define I82527_MSG_CTRL_INTPND_CLR (1) |
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120 | #define I82527_MSG_CTRL_RMTPND (2<<6) |
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121 | #define I82527_MSG_CTRL_RMTPND_NC (3<<6) |
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122 | #define I82527_MSG_CTRL_RMTPND_SET (2<<6) |
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123 | #define I82527_MSG_CTRL_RMTPND_CLR (1<<6) |
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124 | #define I82527_MSG_CTRL_TXRQ (2<<4) |
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125 | #define I82527_MSG_CTRL_TXRQ_NC (3<<4) |
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126 | #define I82527_MSG_CTRL_TXRQ_SET (2<<4) |
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127 | #define I82527_MSG_CTRL_TXRQ_CLR (1<<4) |
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128 | #define I82527_MSG_CTRL_MSGLST (2<<2) |
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129 | #define I82527_MSG_CTRL_MSGLST_NC (3<<2) |
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130 | #define I82527_MSG_CTRL_MSGLST_SET (2<<2) |
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131 | #define I82527_MSG_CTRL_MSGLST_CLR (1<<2) |
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132 | #define I82527_MSG_CTRL_CPUUPD (2<<2) |
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133 | #define I82527_MSG_CTRL_CPUUPD_NC (3<<2) |
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134 | #define I82527_MSG_CTRL_CPUUPD_SET (2<<2) |
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135 | #define I82527_MSG_CTRL_CPUUPD_CLR (1<<2) |
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136 | #define I82527_MSG_CTRL_NEWDAT (2) |
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137 | #define I82527_MSG_CTRL_NEWDAT_NC (3) |
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138 | #define I82527_MSG_CTRL_NEWDAT_SET (2) |
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139 | #define I82527_MSG_CTRL_NEWDAT_CLR (1) |
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140 | #define I82527_MSG_CFG_DIR (1<<3) |
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141 | #define I82527_MSG_CFG_XTD (1<<2) |
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142 | |
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143 | extern i82527_t canbus0; |
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144 | extern i82527_t canbus1; |
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145 | extern i82527_t canbus2; |
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146 | |
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147 | |
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148 | rtems_device_driver canbus_initialize(rtems_device_major_number, |
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149 | rtems_device_minor_number, |
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150 | void *); |
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151 | rtems_device_driver canbus_open(rtems_device_major_number, |
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152 | rtems_device_minor_number, |
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153 | void *); |
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154 | rtems_device_driver canbus_close(rtems_device_major_number, |
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155 | rtems_device_minor_number, |
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156 | void *); |
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157 | rtems_device_driver canbus_read(rtems_device_major_number, |
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158 | rtems_device_minor_number, |
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159 | void *); |
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160 | rtems_device_driver canbus_write(rtems_device_major_number, |
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161 | rtems_device_minor_number, |
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162 | void *); |
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163 | rtems_device_driver canbus_control(rtems_device_major_number, |
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164 | rtems_device_minor_number, |
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165 | void *); |
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166 | |
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167 | |
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168 | #define CANBUS_DRIVER_TABLE_ENTRY \ |
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169 | { canbus_initialize, canbus_open, canbus_close, \ |
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170 | canbus_read, canbus_write, canbus_control } |
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171 | |
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172 | #endif /* __CANBUS_H_ */ |
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