annotate src/g23m-aci/gdd_dio/gdd_sys.h @ 78:c632896652ba

mfw/ti1_key.c: properly initialize notified_keys array The code in this ti1_key.c layer needs to call kpd_subscribe() and kpd_define_key_notification() functions in order to register with the KPD driver. The original code passed KPD_NB_PHYSICAL_KEYS in nb_notified_keys - this constant is defined to 24 in kpd_cfg.h on all platforms of interest to us - but it only filled the first 23 slots in the notified_keys array, resulting in stack garbage being passed to KPD API functions. The fix consists of initializing the last missed array slot to KPD_KEY_RECORD, the key ID for the right side button on the D-Sample handset. On our current hw targets this "Record" button exists as the EXTRA button on our Luna keypad board and as the camera button on the Pirelli DP-L10. There is no support whatsoever for this button in current BMI+MFW, we have no plans of doing anything with Pirelli's camera button even if we do get our UI fw running on that phone, and the Mother's dream of building our own FreeCalypso handset with the same button arrangement as D-Sample (including the right side button) is currently very nebulous - but let us nonetheless handle the full set of buttons on the KPD to MFW interface, and let upper layers weed out unsupported buttons.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 25 Oct 2020 23:41:01 +0000
parents fa8dc04885d8
children
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1
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project : GSM-F&D (8411)
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4 | Modul : gdd_sys.h
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5 +-----------------------------------------------------------------------------
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6 | Copyright 2005 Texas Instruments Berlin, AG
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7 | All rights reserved.
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8 |
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9 | This file is confidential and a trade secret of Texas
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10 | Instruments Berlin, AG
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11 | The receipt of or possession of this file does not convey
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12 | any rights to reproduce or disclose its contents or to
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13 | manufacture, use, or sell anything it may describe, in
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14 | whole, or in part, without the specific written consent of
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15 | Texas Instruments Berlin, AG.
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16 +-----------------------------------------------------------------------------
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17 | Purpose : API for limited system functionality offered to application
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18 | domain libraries.
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19 +-----------------------------------------------------------------------------
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20 */
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21
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22 #ifndef GDD_SYS_H
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23 #define GDD_SYS_H
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24
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25 /*==== DEFINITIONS ==========================================================*/
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26
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27 typedef int T_GDD_SEM;
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28
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29
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30 /*==== DYNAMIC MEMORY FUNCTIONS =============================================*/
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31
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32
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33 /*
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34 +------------------------------------------------------------------------------
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35 | Function : gdd_sys_mem_malloc
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36 +------------------------------------------------------------------------------
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37 | Description : Allocate memory.
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38 |
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39 | Parameters : size - Size of memory required.
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40 |
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41 | Return : Pointer to first byte of allocated memory.
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42 | 0 if allocation failed.
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43 +------------------------------------------------------------------------------
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44 */
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45 void * gdd_sys_mem_malloc(int size);
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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 | Function : gdd_sys_mem_free
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51 +------------------------------------------------------------------------------
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52 | Description : Release memory which was previously allocated.
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53 |
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54 | Parameters : p - Pointer to memory to be deallocated
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55 +------------------------------------------------------------------------------
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56 */
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57 void gdd_sys_mem_free(void * p);
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58
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59
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60 /*==== SEMAPHORE FUNCTIONS ==================================================*/
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61
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62
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63 /*
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64 +------------------------------------------------------------------------------
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65 | Function : gdd_sys_sem_open
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66 +------------------------------------------------------------------------------
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67 | Description : Opens a (counting) semaphore specified by its name. If the
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68 | semaphore does not exist, it will be created with the initial
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69 | count given. If the semaphore already exists the parameter count
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70 | will be ignored.
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71 |
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72 | Parameters : name - Some name to identify the semaphore
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73 | count - initial count (e.g. 1 for a binary sem.)
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74 |
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75 | Return : Returns handle to created semaphore, or -1 if an error occured.
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76 +------------------------------------------------------------------------------
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77 */
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78 T_GDD_SEM gdd_sys_sem_open(char * name, unsigned short count);
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79
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80
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81 /*
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82 +------------------------------------------------------------------------------
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83 | Function : gdd_sys_sem_close
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84 +------------------------------------------------------------------------------
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85 | Description : Closes a semaphore
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86 |
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87 | Parameters : sem - handle of semaphore
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88 |
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89 | Return : 0 = succees
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90 | 1 = error
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91 +------------------------------------------------------------------------------
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92 */
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93 int gdd_sys_sem_close(T_GDD_SEM sem);
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94
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95
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96 /*
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97 +------------------------------------------------------------------------------
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98 | Function : gdd_sys_sem_down
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99 +------------------------------------------------------------------------------
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100 | Description : This functions obtains the specified semaphore, i.e.
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101 | the counter is decremented, if it is greater than zero.
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102 | If the counter is equal to zero, than the calling task is
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103 | suspended until the counter is incremented by another task.
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104 | If the caller is a non-task thread the function returns
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105 | immediately regardless if the request can be satisfied or not.
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106 | In this case, -1 is returned if the counter was already zero.
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107 |
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108 | Parameters : sem - handle of semaphore
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109 |
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110 | Return : 0 = succees
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111 | 1 = error
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112 +------------------------------------------------------------------------------
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113 */
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114 int gdd_sys_sem_down(T_GDD_SEM sem);
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115
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116
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117 /*
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118 +------------------------------------------------------------------------------
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119 | Function : gdd_sys_sem_down
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120 +------------------------------------------------------------------------------
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121 | Description : Releases a semaphore, i.e. counter is incremented.
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122 |
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123 | Parameters : sem - handle of semaphore
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124 |
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125 | Return : 0 = succees
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126 | 1 = error
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127 +------------------------------------------------------------------------------
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128 */
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129 int gdd_sys_sem_up(T_GDD_SEM sem);
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130
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131
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132 /*
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133 +------------------------------------------------------------------------------
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134 | Function : gdd_sys_sem_status
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135 +------------------------------------------------------------------------------
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136 | Description : Query (obtain) the counter of a semaphore.
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137 |
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138 | Parameters : sem - handle of semaphore
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139 | count - output variable to pass back the counter
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140 |
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141 | Return : 0 = succees
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142 | 1 = error
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143 +------------------------------------------------------------------------------
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144 */
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145 int gdd_sys_sem_status(T_GDD_SEM sem, /*out*/ unsigned short * count);
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146
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147
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148 #endif /* GDD_SYS_H */