1 | /** |
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2 | * @file rtems/mw_uid.h |
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3 | * |
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4 | * @brief Input device Interface for MicroWindows in an |
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5 | * Embedded System Enviroment |
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6 | * |
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7 | * This file defines the interface for input devices used by |
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8 | * MicroWindows in an embedded system environment. |
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9 | */ |
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10 | |
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11 | /* |
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12 | * Copyright (c) 2000 - Rosimildo da Silva |
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13 | */ |
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14 | |
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15 | #ifndef _MW_UID_H |
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16 | #define _MW_UID_H |
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17 | |
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18 | #include <sys/types.h> |
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19 | #include <rtems/bspIo.h> |
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20 | |
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21 | /** |
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22 | * @defgroup libmisc_fb_mw Input Devices for MicroWindows |
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23 | * |
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24 | * @ingroup libmisc |
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25 | */ |
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26 | /**@{*/ |
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27 | #ifdef __cplusplus |
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28 | extern "C" { |
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29 | #endif |
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30 | |
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31 | /* 0x41XX -- IOCTL functions for the Micro Input Devices commands */ |
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32 | #define MW_UID_REGISTER_DEVICE 0x4100 |
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33 | #define MW_UID_UNREGISTER_DEVICE 0x4101 |
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34 | |
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35 | /* devices supported by MicroWindows */ |
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36 | enum MW_INPUT_DEVICE_TYPE { |
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37 | MV_UID_INVALID = 0, |
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38 | MV_UID_REL_POS = 1, /* mouse */ |
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39 | MV_UID_ABS_POS = 2, /* touch-screen */ |
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40 | MV_UID_KBD = 3, /* keyboard */ |
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41 | MV_UID_TIMER = 4 /* timer -- not used */ |
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42 | }; |
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43 | |
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44 | /* matching MicroWindows */ |
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45 | #define MV_BUTTON_RIGHT 0x01 |
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46 | #define MV_BUTTON_CENTER 0x02 |
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47 | #define MV_BUTTON_LEFT 0x04 |
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48 | |
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49 | /* modifiers of the keyboard type devices */ |
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50 | #define MV_KEY_MODIFIER_SHIFT_DOWN 0x10 |
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51 | #define MV_KEY_MODIFIER_ALT_DOWN 0x20 |
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52 | |
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53 | /* indication of the LEDS */ |
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54 | #define MV_KEY_MODIFIER_CAPS_ON 0x04 |
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55 | #define MV_KEY_MODIFIER_NUN_LOCK_ON 0x02 |
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56 | #define MV_KEY_SCROLL_LOCK_ON 0x01 |
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57 | |
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58 | /* keyboard modes -- default ASCII */ |
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59 | #define MV_KEY_MODE_ASCII 0x01 |
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60 | /* |
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61 | * This mode one event is sent when a key is pressed, |
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62 | * and another one is send when a key is released. |
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63 | */ |
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64 | #define MV_KEY_MODE_SCANCODE 0x00 |
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65 | |
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66 | /* these defines match with the linux keyboard range |
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67 | * for ioctls functions for the keyboard interface. |
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68 | * 0x4BXX --- keyboard related functions |
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69 | */ |
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70 | #define MV_KDGKBMODE 0x4B44 /* gets current keyboard mode */ |
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71 | #define MV_KDSKBMODE 0x4B45 /* sets current keyboard mode */ |
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72 | |
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73 | /* |
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74 | * Message generated by input devices controlled by MicroWindows. |
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75 | */ |
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76 | struct MW_UID_MESSAGE { |
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77 | enum MW_INPUT_DEVICE_TYPE type; /* device type */ |
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78 | union { |
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79 | /* fired when keyboard events are raised */ |
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80 | struct kbd_t { |
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81 | unsigned short code; /* keycode or scancode */ |
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82 | unsigned char modifiers; /* key modifiers */ |
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83 | unsigned char mode; /* current Kbd mode */ |
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84 | } kbd; |
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85 | |
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86 | /* fired when position events are raised, mouse, touch screen, etc */ |
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87 | struct pos_t { |
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88 | unsigned short btns; /* indicates which buttons are pressed */ |
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89 | short x; /* x location */ |
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90 | short y; /* y location */ |
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91 | short z; /* z location, 0 for 2D */ |
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92 | } pos; |
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93 | |
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94 | /* fired by a timer device periodically */ |
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95 | struct timer_t { |
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96 | unsigned long frt; /* free running timer */ |
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97 | unsigned long seq; /* sequence number */ |
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98 | } tmr; |
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99 | } m; |
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100 | }; |
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101 | |
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102 | |
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103 | /* |
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104 | * API for creating/closing/accessing the message queue used by the micro |
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105 | * input device interface. All functions in this interface returns a |
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106 | * zero ( 0 ) on success. One exception for that is the "read" routine |
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107 | * that returns the number of bytes read. Negaive numbers indicate errors |
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108 | * |
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109 | * The implementation of the message queue for RTEMS uses a POSIX message |
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110 | * queue interface. It should be very portable among systems with a POSIX |
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111 | * support. |
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112 | */ |
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113 | |
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114 | /** |
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115 | * This method creates the message queue that holds events from the |
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116 | * input devices. |
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117 | * |
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118 | * @param[in] q_name is the name of the message queue |
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119 | * @param[in] flags controls the behaviour of the queue |
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120 | * @param[in] max_msgs specifies the maximum number of pending messages |
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121 | * |
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122 | * @note The message queue is from the Classic API. |
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123 | * |
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124 | * @return This method returns 0 on success and -1 on error. |
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125 | */ |
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126 | extern int uid_open_queue( const char *q_name, int flags, size_t max_msgs ); |
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127 | |
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128 | /** |
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129 | * This method closes the message queue and deletes it. |
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130 | * |
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131 | * @return This method returns 0 on success and -1 on error. |
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132 | */ |
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133 | extern int uid_close_queue( void ); |
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134 | |
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135 | /** |
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136 | * This method reads a message from the queue. It waits up to the specified |
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137 | * timeout in miliseconds. A @a timeout of 0 is a poll. |
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138 | * |
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139 | * @param[in] m will be filled in with the received message |
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140 | * @param[in] timeout is the maximum number of mulliseconds to wait |
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141 | * |
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142 | * @return This method returns 0 on success and -1 on error. |
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143 | */ |
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144 | extern int uid_read_message( struct MW_UID_MESSAGE *m, unsigned long timeout ); |
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145 | |
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146 | /** |
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147 | * This methods writes a message to the queue. |
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148 | * |
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149 | * @param[in] m is the message to send |
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150 | * |
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151 | * @return This method returns 0 on success and -1 on error. |
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152 | */ |
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153 | extern int uid_send_message( struct MW_UID_MESSAGE *m ); |
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154 | |
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155 | /** |
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156 | * This method registers the device associated with @a fd to |
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157 | * to insert data to the queue |
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158 | */ |
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159 | extern int uid_register_device( int fd, const char *q_name ); |
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160 | |
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161 | /* unregister device to stop adding messages to the queue */ |
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162 | extern int uid_unregister_device( int fd ); |
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163 | |
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164 | /* set the keyboard */ |
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165 | extern int uid_set_kbd_mode( int fd, int mode, int *old_mode ); |
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166 | |
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167 | /** |
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168 | * This methods prints the specified UID message using printk |
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169 | * |
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170 | * @param[in] uid points to the message to print |
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171 | */ |
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172 | void uid_print_message( |
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173 | struct MW_UID_MESSAGE *uid |
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174 | ); |
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175 | |
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176 | /** |
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177 | * This methods prints the specified UID message using your fprintf |
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178 | * style method of choice. |
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179 | * |
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180 | * @param[in] context is a pointer to a data area which may be |
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181 | * used by some print handlers |
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182 | * @param[in] handler is the fprintf style method to invoke |
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183 | * @param[in] uid points to the message to print |
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184 | */ |
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185 | void uid_print_message_with_plugin( |
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186 | void *context, |
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187 | rtems_printk_plugin_t handler, |
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188 | struct MW_UID_MESSAGE *uid |
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189 | ); |
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190 | |
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191 | #ifdef __cplusplus |
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192 | } |
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193 | #endif |
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194 | /**@}*/ |
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195 | #endif /* _MW_UID_H */ |
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