FreeCalypso > hg > fc-tourmaline
annotate src/cs/drivers/drv_app/kpd/kpd_env.c @ 268:f2e52cab0a73
abb_inth.c: check all interrupt causes, not just one
The original code used if - else if - else if etc constructs, thus
the first detected interrupt was the only one handled. However,
Iota ITSTATREG is a clear-on-read register, thus if we only handle
the first detected interrupt and skip checking the others, then the
other interrupts will be lost, if more than one interrupt happened
to occur in one ABB interrupt handling cycle - a form of rare race
condition. Change the code to check all interrupts that were read
in this cycle.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 13 Jun 2021 18:17:53 +0000 |
parents | 4e78acac3d88 |
children |
rev | line source |
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0
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1 /** |
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2 * @file kpd_env.c |
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3 * |
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4 * Coding of the Riviera Generic Functions |
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5 * (except handle message and handle timer). |
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6 * |
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7 * @author Laurent Sollier (l-sollier@ti.com) |
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8 * @version 0.1 |
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9 */ |
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10 |
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11 /* |
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12 * History: |
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13 * |
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14 * Date Author Modification |
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15 * ---------------------------------------- |
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16 * 10/10/2001 L Sollier Create |
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17 * |
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18 * |
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19 * (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved |
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20 */ |
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21 |
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22 |
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23 |
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24 #include "kpd/kpd_env.h" |
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25 #include "kpd/kpd_i.h" |
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26 |
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27 #include "rvm/rvm_priorities.h" |
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28 #include "rvm/rvm_use_id_list.h" |
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29 |
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30 #include <string.h> |
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31 |
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32 |
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33 /* External declaration */ |
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34 extern T_RV_RET kpd_core(void); |
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35 |
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36 |
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37 /** |
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38 * Pointer on the structure gathering all the global variables |
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39 * used by KPD instance. |
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40 */ |
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41 T_KPD_ENV_CTRL_BLK* kpd_env_ctrl_blk = NULL; |
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42 |
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43 |
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44 /** |
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45 * @name Riviera generic functions implementation |
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46 * |
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47 */ |
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48 /*@{*/ |
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49 |
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50 /** |
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51 * function: kpd_get_info |
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52 */ |
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53 T_RVM_RETURN kpd_get_info(T_RVM_INFO_SWE* swe_info) |
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54 { |
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55 /* SWE info */ |
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56 swe_info->swe_type = RVM_SWE_TYPE_4; |
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57 swe_info->type_info.type4.swe_use_id = KPD_USE_ID; |
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58 |
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59 memcpy( swe_info->type_info.type4.swe_name, "KPD", sizeof("KPD") ); |
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60 |
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61 swe_info->type_info.type4.stack_size = KPD_STACK_SIZE; |
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62 swe_info->type_info.type4.priority = RVM_KPD_TASK_PRIORITY; |
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63 |
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64 |
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65 /* Set the return path */ |
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66 swe_info->type_info.type4.return_path.callback_func = NULL; |
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67 swe_info->type_info.type4.return_path.addr_id = 0; |
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68 |
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69 |
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70 /* memory bank info */ |
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71 swe_info->type_info.type4.nb_mem_bank = 1; |
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72 |
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73 memcpy ((UINT8 *) swe_info->type_info.type4.mem_bank[0].bank_name, "KPD_PRIM", 9); |
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74 swe_info->type_info.type4.mem_bank[0].initial_params.size = KPD_MB_PRIM_SIZE; |
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75 swe_info->type_info.type4.mem_bank[0].initial_params.watermark = KPD_MB_PRIM_WATERMARK; |
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76 |
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77 /* linked SWE info */ |
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78 /* this SWE does not require any SWE to run */ |
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79 swe_info->type_info.type4.nb_linked_swe = 0; |
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80 |
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81 /* generic functions */ |
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82 swe_info->type_info.type4.set_info = kpd_set_info; |
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83 swe_info->type_info.type4.init = kpd_init; |
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84 swe_info->type_info.type4.core = kpd_core; |
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85 swe_info->type_info.type4.stop = kpd_stop; |
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86 swe_info->type_info.type4.kill = kpd_kill; |
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87 |
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88 return RVM_OK; |
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89 |
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90 } |
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91 |
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92 |
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93 /** |
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94 * function: kpd_set_info |
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95 */ |
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96 T_RVM_RETURN kpd_set_info (T_RVF_ADDR_ID addr_id, |
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97 T_RV_RETURN return_path[], |
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98 T_RVF_MB_ID bk_id[], |
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99 T_RVM_RETURN (*rvm_error_ft)(T_RVM_NAME swe_name, |
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100 T_RVM_RETURN error_cause, |
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101 T_RVM_ERROR_TYPE error_type, |
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102 T_RVM_STRING error_msg)) |
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103 { |
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104 /* Create instance gathering all the variable used by EXPL instance */ |
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105 if (rvf_get_buf(bk_id[0], |
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106 sizeof(T_KPD_ENV_CTRL_BLK), |
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107 (T_RVF_BUFFER**)&kpd_env_ctrl_blk) != RVF_GREEN) |
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108 { |
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parents:
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109 /* The environemnt will cancel the EXPL instance creation. */ |
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110 return RVM_MEMORY_ERR; |
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parents:
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111 } |
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parents:
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112 |
4e78acac3d88
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parents:
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113 /* Store the pointer to the error function */ |
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parents:
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114 kpd_env_ctrl_blk->error_ft = rvm_error_ft ; |
4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
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parents:
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115 /* Store the mem bank id. */ |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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parents:
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116 kpd_env_ctrl_blk->prim_id = bk_id[0]; |
4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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117 /* Store the address id */ |
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118 kpd_env_ctrl_blk->addr_id = addr_id; |
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parents:
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119 kpd_env_ctrl_blk->swe_is_initialized = FALSE; |
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120 |
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121 |
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parents:
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122 /* return_path of linked SWE -> not used */ |
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parents:
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123 |
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parents:
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124 return RVM_OK; |
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125 } |
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126 |
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127 |
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128 /** |
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129 * function: kpd_init |
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130 */ |
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131 T_RVM_RETURN kpd_init(void) |
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132 { |
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133 T_RV_RET ret = RV_OK; |
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134 |
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parents:
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135 /* Initialise keypad driver */ |
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parents:
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136 ret = kpd_initialize_keypad_driver(); |
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parents:
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137 |
4e78acac3d88
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parents:
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138 /* Note that the (kpd_env_ctrl_blk != 0) check is normally |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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139 useless because if kpd_set_info fail, kpd_init will not |
4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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140 be called */ |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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141 if ( (ret == RV_OK) && (kpd_env_ctrl_blk != 0)) |
4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
142 { |
4e78acac3d88
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parents:
diff
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143 kpd_env_ctrl_blk->swe_is_initialized = TRUE; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
144 } |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
145 |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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146 return ret; |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
147 } |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
148 |
4e78acac3d88
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parents:
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|
149 |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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150 /** |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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151 * function: kpd_stop |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
152 */ |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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153 T_RVM_RETURN kpd_stop(void) |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
154 { |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
155 /* NB: Other SWEs have not been killed yet, kpd can send messages to other SWEs. */ |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
156 |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
157 return RVM_OK; |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
158 } |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
159 |
4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
160 |
4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
161 /** |
4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
162 * function: kpd_kill |
4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
163 */ |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
164 T_RVM_RETURN kpd_kill (void) |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
165 { |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
166 /* |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
167 * DO NOT SEND MESSAGES |
4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
168 */ |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
169 rvf_free_buf(kpd_env_ctrl_blk); |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
170 |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
171 kpd_kill_keypad_driver(); |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
172 |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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173 return RVM_OK; |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
174 } |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
175 |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
176 |
4e78acac3d88
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
177 /*@}*/ |