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Rev | Author | Line No. | Line |
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538 | mauro | 1 | /* |
2 | * Project: S.Ha.R.K. |
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3 | * |
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4 | * Coordinators: |
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5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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6 | * Paolo Gai <pj@gandalf.sssup.it> |
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7 | * |
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8 | * Authors : |
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9 | * Mauro Marinoni <mauro.marinoni@unipv.it> |
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10 | * |
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11 | * |
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12 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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13 | * |
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14 | * http://www.sssup.it |
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15 | * http://retis.sssup.it |
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16 | * http://shark.sssup.it |
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17 | */ |
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18 | |||
548 | mauro | 19 | //#define __JOY_DEBUG__ |
538 | mauro | 20 | //#define __JOY_DUMP__ |
21 | |||
22 | #include <kernel/kern.h> |
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23 | |||
24 | #include "../include/drivers/shark_input26.h" |
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25 | #include "../include/drivers/shark_joy26.h" |
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26 | |||
27 | #include <kernel/func.h> |
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28 | |||
29 | /* Devices */ |
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30 | extern int ns558_init(void); |
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31 | extern int ns558_exit(void); |
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32 | |||
33 | extern int analog_init(void); |
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34 | extern int analog_exit(void); |
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35 | |||
36 | extern int joydump_init(void); |
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37 | extern int joydump_exit(void); |
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38 | |||
39 | /* Handler */ |
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40 | extern int joystick_init(void); |
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41 | extern int joystick_exit(void); |
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42 | |||
547 | mauro | 43 | /* Functions */ |
44 | extern int joystick_get(int *type, int *number, int *value); |
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45 | |||
538 | mauro | 46 | extern int input_installed; |
47 | |||
547 | mauro | 48 | #define JS_EVENT_BUTTON 0x01 /* button pressed/released */ |
49 | #define JS_EVENT_AXIS 0x02 /* joystick moved */ |
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50 | #define JS_EVENT_INIT 0x80 /* initial state of device */ |
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51 | |||
52 | /* joystick driver currently installed */ |
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53 | static int joystick_installed = FALSE; |
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548 | mauro | 54 | static int joystick_enabled = FALSE; |
55 | |||
547 | mauro | 56 | static int axis[4], button; |
57 | |||
58 | /* Called by handler */ |
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59 | void shark_joy_exec(void) { |
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60 | int type, number, value; |
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548 | mauro | 61 | |
62 | if (joystick_enabled == FALSE) |
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63 | return; |
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64 | |||
547 | mauro | 65 | if (joystick_get(&type, &number, &value)) |
66 | return; |
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67 | |||
548 | mauro | 68 | switch (type) { /* TODO */ |
547 | mauro | 69 | case JS_EVENT_BUTTON: |
548 | mauro | 70 | if (value) |
71 | button |= 1 << number; |
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72 | else |
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73 | button &= ~(1 << number); |
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547 | mauro | 74 | break; |
75 | case JS_EVENT_AXIS: |
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548 | mauro | 76 | axis[number] = value; |
547 | mauro | 77 | break; |
78 | default: |
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79 | return; |
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80 | } |
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81 | #ifdef __JOY_DEBUG__ |
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548 | mauro | 82 | printk(KERN_DEBUG "shark_joy.c: (%4d,%4d) (%4d,%4d) %4x\n", axis[0], axis[1], axis[2], axis[3], button); |
547 | mauro | 83 | #endif |
84 | } |
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85 | |||
538 | mauro | 86 | /* User Functions */ |
548 | mauro | 87 | void joy_getstatus(int *axe0, int *axe1, int *axe2, int *axe3, int *buttons) |
88 | { |
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89 | if (axe0) |
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90 | *axe0 = axis[0]; |
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91 | if (axe1) |
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92 | *axe1 = axis[1]; |
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93 | if (axe2) |
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94 | *axe2 = axis[2]; |
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95 | if (axe3) |
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96 | *axe3 = axis[3]; |
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97 | if (buttons) |
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98 | *buttons = button; |
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99 | } |
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100 | |||
101 | void joy_setstatus(int axe0, int axe1, int axe2, int axe3, int buttons) |
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102 | { |
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103 | if ((axe0 > -32767) && (axe0 < 32767)) |
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104 | axis[0] = axe0; |
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105 | if ((axe1 > -32767) && (axe1 < 32767)) |
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106 | axis[1] = axe1; |
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107 | if ((axe2 > -32767) && (axe2 < 32767)) |
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108 | axis[2] = axe2; |
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109 | if ((axe3 > -32767) && (axe3 < 32767)) |
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110 | axis[3] = axe3; |
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111 | button = buttons; |
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112 | } |
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113 | |||
547 | mauro | 114 | void joy_enable(void) |
115 | { |
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548 | mauro | 116 | joystick_enabled = TRUE; |
117 | #ifdef __JOY_DEBUG__ |
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118 | printk("shark_joy.c: Joystick Enabled.\n"); |
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119 | #endif |
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547 | mauro | 120 | } |
538 | mauro | 121 | |
547 | mauro | 122 | void joy_disable(void) |
123 | { |
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548 | mauro | 124 | joystick_enabled = FALSE; |
125 | #ifdef __JOY_DEBUG__ |
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126 | printk("shark_joy.c: Joystick Disabled.\n"); |
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127 | #endif |
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547 | mauro | 128 | } |
129 | |||
130 | |||
538 | mauro | 131 | /* Init the Linux Joystick Driver */ |
132 | int JOY26_init() { |
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133 | |||
134 | int ret; |
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135 | |||
136 | if (input_installed == FALSE) |
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137 | if (INPUT26_init()) { |
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138 | printk(KERN_ERR "Unable to open Input SubSystem.\n"); |
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139 | return -1; |
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140 | } |
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141 | |||
142 | ret = ns558_init(); |
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143 | if (ret) { |
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144 | printk(KERN_ERR "Gameport_Init return: %d\n", ret); |
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145 | return -1; |
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146 | } |
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147 | |||
148 | #ifdef __JOY_DUMP__ |
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149 | ret = joydump_init(); |
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150 | #else |
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151 | ret = analog_init(); |
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152 | #endif |
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153 | if (ret) { |
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154 | printk(KERN_ERR "Joystick_Device_Init return: %d\n", ret); |
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155 | return -1; |
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156 | } |
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157 | |||
158 | ret = joystick_init(); |
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159 | if (ret) { |
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160 | printk(KERN_ERR "Joystick_Handler_Init return: %d\n", ret); |
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161 | return -1; |
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162 | } |
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548 | mauro | 163 | |
547 | mauro | 164 | joystick_installed = TRUE; |
548 | mauro | 165 | joystick_enabled = TRUE; |
166 | |||
538 | mauro | 167 | return 0; |
168 | } |
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169 | |||
170 | int JOY26_close() { |
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547 | mauro | 171 | if (!joystick_installed) |
172 | return -1; |
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538 | mauro | 173 | |
548 | mauro | 174 | joystick_enabled = FALSE; |
538 | mauro | 175 | joystick_exit(); |
176 | #ifdef __JOY_DUMP__ |
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177 | joydump_exit(); |
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178 | #else |
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179 | analog_exit(); |
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180 | #endif |
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181 | ns558_exit(); |
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547 | mauro | 182 | |
183 | joystick_installed = FALSE; |
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538 | mauro | 184 | return 0; |
185 | } |