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1 | /* |
2 | * (C) GraÅžvydas "notaz" Ignotas, 2006-2012 |
3 | * |
4 | * This work is licensed under the terms of any of these licenses |
5 | * (at your option): |
6 | * - GNU GPL, version 2 or later. |
7 | * - GNU LGPL, version 2.1 or later. |
8 | * - MAME license. |
9 | * See the COPYING file in the top-level directory. |
10 | */ |
11 | |
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12 | #include <stdio.h> |
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13 | #include <stdlib.h> |
14 | #include <string.h> |
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15 | #include <sys/types.h> |
16 | #include <sys/stat.h> |
17 | #include <fcntl.h> |
18 | #include <unistd.h> |
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19 | |
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20 | #include "../input.h" |
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21 | #include "in_gp2x.h" |
22 | |
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23 | #define IN_GP2X_PREFIX "gp2x:" |
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24 | #define IN_GP2X_NBUTTONS 32 |
25 | |
f89d8471 |
26 | /* note: in_gp2x handles combos (if 2 btns have the same bind, |
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27 | * both must be pressed for action to happen) */ |
28 | static int in_gp2x_combo_keys = 0; |
29 | static int in_gp2x_combo_acts = 0; |
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30 | static int gpiodev = -1; /* Wiz only */ |
31 | |
32 | static int (*in_gp2x_get_bits)(void); |
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33 | |
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34 | static const char *in_gp2x_keys[IN_GP2X_NBUTTONS] = { |
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35 | [0 ... IN_GP2X_NBUTTONS-1] = NULL, |
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36 | [GP2X_BTN_UP] = "Up", [GP2X_BTN_LEFT] = "Left", |
37 | [GP2X_BTN_DOWN] = "Down", [GP2X_BTN_RIGHT] = "Right", |
38 | [GP2X_BTN_START] = "Start", [GP2X_BTN_SELECT] = "Select", |
39 | [GP2X_BTN_L] = "L", [GP2X_BTN_R] = "R", |
40 | [GP2X_BTN_A] = "A", [GP2X_BTN_B] = "B", |
41 | [GP2X_BTN_X] = "X", [GP2X_BTN_Y] = "Y", |
42 | [GP2X_BTN_VOL_DOWN] = "VOL DOWN", |
43 | [GP2X_BTN_VOL_UP] = "VOL UP", |
44 | [GP2X_BTN_PUSH] = "PUSH" |
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45 | }; |
46 | |
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47 | |
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48 | static int in_gp2x_get_mmsp2_bits(void) |
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49 | { |
d572cbad |
50 | extern volatile unsigned short *gp2x_memregs; |
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51 | int value; |
52 | value = gp2x_memregs[0x1198>>1] & 0xff; // GPIO M |
53 | if (value == 0xFD) value = 0xFA; |
54 | if (value == 0xF7) value = 0xEB; |
55 | if (value == 0xDF) value = 0xAF; |
56 | if (value == 0x7F) value = 0xBE; |
57 | value |= gp2x_memregs[0x1184>>1] & 0xFF00; // GPIO C |
58 | value |= gp2x_memregs[0x1186>>1] << 16; // GPIO D |
59 | value = ~value & 0x08c0ff55; |
60 | |
61 | return value; |
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62 | } |
63 | |
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64 | static int in_gp2x_get_wiz_bits(void) |
65 | { |
5f7b5155 |
66 | int r, value = 0; |
67 | r = read(gpiodev, &value, 4); |
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68 | if (value & 0x02) |
69 | value |= 0x05; |
70 | if (value & 0x08) |
71 | value |= 0x14; |
72 | if (value & 0x20) |
73 | value |= 0x50; |
74 | if (value & 0x80) |
75 | value |= 0x41; |
76 | |
77 | /* convert to GP2X style */ |
78 | value &= 0x7ff55; |
79 | if (value & (1 << 16)) |
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80 | value |= 1 << GP2X_BTN_VOL_UP; |
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81 | if (value & (1 << 17)) |
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82 | value |= 1 << GP2X_BTN_VOL_DOWN; |
fa8d1331 |
83 | if (value & (1 << 18)) |
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84 | value |= 1 << GP2X_BTN_PUSH; |
fa8d1331 |
85 | value &= ~0x70000; |
86 | |
87 | return value; |
88 | } |
89 | |
0114ccc4 |
90 | #ifdef FAKE_IN_GP2X |
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91 | volatile unsigned short *gp2x_memregs; |
e9b29264 |
92 | int gp2x_dev_id = -1; |
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93 | |
0114ccc4 |
94 | static int in_gp2x_get_fake_bits(void) |
95 | { |
96 | extern int current_keys; |
97 | return current_keys; |
98 | } |
99 | #endif |
100 | |
101 | static void in_gp2x_probe(void) |
102 | { |
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103 | switch (gp2x_dev_id) |
0114ccc4 |
104 | { |
b6072c17 |
105 | case GP2X_DEV_GP2X: |
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106 | in_gp2x_get_bits = in_gp2x_get_mmsp2_bits; |
107 | break; |
b6072c17 |
108 | case GP2X_DEV_WIZ: |
0114ccc4 |
109 | gpiodev = open("/dev/GPIO", O_RDONLY); |
110 | if (gpiodev < 0) { |
111 | perror("in_gp2x: couldn't open /dev/GPIO"); |
112 | return; |
113 | } |
114 | in_gp2x_get_bits = in_gp2x_get_wiz_bits; |
115 | break; |
e9b29264 |
116 | // we'll use evdev for Caanoo |
0114ccc4 |
117 | default: |
118 | #ifdef FAKE_IN_GP2X |
119 | in_gp2x_get_bits = in_gp2x_get_fake_bits; |
120 | break; |
121 | #endif |
122 | return; |
123 | } |
124 | |
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125 | in_register(IN_GP2X_PREFIX "GP2X pad", -1, NULL, |
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126 | IN_GP2X_NBUTTONS, in_gp2x_keys, 1); |
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127 | } |
128 | |
129 | static void in_gp2x_free(void *drv_data) |
130 | { |
131 | if (gpiodev >= 0) { |
132 | close(gpiodev); |
133 | gpiodev = -1; |
134 | } |
135 | } |
136 | |
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137 | static const char * const * |
138 | in_gp2x_get_key_names(int *count) |
0114ccc4 |
139 | { |
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140 | *count = IN_GP2X_NBUTTONS; |
141 | return in_gp2x_keys; |
0114ccc4 |
142 | } |
143 | |
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144 | /* ORs result with pressed buttons */ |
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145 | static int in_gp2x_update(void *drv_data, const int *binds, int *result) |
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146 | { |
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147 | int type_start = 0; |
148 | int i, t, keys; |
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149 | |
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150 | keys = in_gp2x_get_bits(); |
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151 | |
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152 | if (keys & in_gp2x_combo_keys) { |
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153 | result[IN_BINDTYPE_EMU] = in_combos_do(keys, binds, GP2X_BTN_PUSH, |
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154 | in_gp2x_combo_keys, in_gp2x_combo_acts); |
155 | type_start = IN_BINDTYPE_PLAYER12; |
156 | } |
157 | |
158 | for (i = 0; keys; i++, keys >>= 1) { |
159 | if (!(keys & 1)) |
160 | continue; |
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161 | |
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162 | for (t = type_start; t < IN_BINDTYPE_COUNT; t++) |
163 | result[t] |= binds[IN_BIND_OFFS(i, t)]; |
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164 | } |
165 | |
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166 | return 0; |
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167 | } |
168 | |
169 | int in_gp2x_update_keycode(void *data, int *is_down) |
170 | { |
171 | static int old_val = 0; |
172 | int val, diff, i; |
173 | |
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174 | val = in_gp2x_get_bits(); |
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175 | diff = val ^ old_val; |
176 | if (diff == 0) |
177 | return -1; |
178 | |
179 | /* take one bit only */ |
180 | for (i = 0; i < sizeof(diff)*8; i++) |
181 | if (diff & (1<<i)) |
182 | break; |
183 | |
184 | old_val ^= 1 << i; |
185 | |
186 | if (is_down) |
187 | *is_down = !!(val & (1<<i)); |
188 | return i; |
189 | } |
190 | |
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191 | static const struct { |
192 | short key; |
193 | short pbtn; |
194 | } key_pbtn_map[] = |
195 | { |
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196 | { GP2X_BTN_UP, PBTN_UP }, |
197 | { GP2X_BTN_DOWN, PBTN_DOWN }, |
198 | { GP2X_BTN_LEFT, PBTN_LEFT }, |
199 | { GP2X_BTN_RIGHT, PBTN_RIGHT }, |
200 | { GP2X_BTN_B, PBTN_MOK }, |
201 | { GP2X_BTN_X, PBTN_MBACK }, |
202 | { GP2X_BTN_A, PBTN_MA2 }, |
203 | { GP2X_BTN_Y, PBTN_MA3 }, |
204 | { GP2X_BTN_L, PBTN_L }, |
205 | { GP2X_BTN_R, PBTN_R }, |
206 | { GP2X_BTN_SELECT, PBTN_MENU }, |
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207 | }; |
208 | |
209 | #define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0])) |
210 | |
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211 | static int in_gp2x_menu_translate(void *drv_data, int keycode, char *charcode) |
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212 | { |
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213 | int i; |
214 | if (keycode < 0) |
215 | { |
216 | /* menu -> kc */ |
217 | keycode = -keycode; |
218 | for (i = 0; i < KEY_PBTN_MAP_SIZE; i++) |
219 | if (key_pbtn_map[i].pbtn == keycode) |
220 | return key_pbtn_map[i].key; |
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221 | } |
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222 | else |
223 | { |
224 | for (i = 0; i < KEY_PBTN_MAP_SIZE; i++) |
225 | if (key_pbtn_map[i].key == keycode) |
226 | return key_pbtn_map[i].pbtn; |
227 | } |
228 | |
229 | return 0; |
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230 | } |
231 | |
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232 | #if 0 // TODO: move to pico |
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233 | static const struct { |
234 | short code; |
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235 | char btype; |
236 | char bit; |
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237 | } in_gp2x_defbinds[] = |
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238 | { |
239 | /* MXYZ SACB RLDU */ |
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240 | { BTN_UP, IN_BINDTYPE_PLAYER12, 0 }, |
241 | { BTN_DOWN, IN_BINDTYPE_PLAYER12, 1 }, |
242 | { BTN_LEFT, IN_BINDTYPE_PLAYER12, 2 }, |
243 | { BTN_RIGHT, IN_BINDTYPE_PLAYER12, 3 }, |
244 | { BTN_X, IN_BINDTYPE_PLAYER12, 4 }, /* B */ |
245 | { BTN_B, IN_BINDTYPE_PLAYER12, 5 }, /* C */ |
246 | { BTN_A, IN_BINDTYPE_PLAYER12, 6 }, /* A */ |
247 | { BTN_START, IN_BINDTYPE_PLAYER12, 7 }, |
248 | { BTN_SELECT, IN_BINDTYPE_EMU, PEVB_MENU }, |
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249 | // { BTN_Y, IN_BINDTYPE_EMU, PEVB_SWITCH_RND }, |
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250 | { BTN_L, IN_BINDTYPE_EMU, PEVB_STATE_SAVE }, |
251 | { BTN_R, IN_BINDTYPE_EMU, PEVB_STATE_LOAD }, |
252 | { BTN_VOL_UP, IN_BINDTYPE_EMU, PEVB_VOL_UP }, |
253 | { BTN_VOL_DOWN, IN_BINDTYPE_EMU, PEVB_VOL_DOWN }, |
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254 | { 0, 0, 0 }, |
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255 | }; |
e99d8048 |
256 | #endif |
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257 | |
258 | /* remove binds of missing keys, count remaining ones */ |
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259 | static int in_gp2x_clean_binds(void *drv_data, int *binds, int *def_binds) |
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260 | { |
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261 | int i, count = 0; |
262 | // int eb, have_vol = 0, have_menu = 0; |
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263 | |
264 | for (i = 0; i < IN_GP2X_NBUTTONS; i++) { |
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265 | int t, offs; |
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266 | for (t = 0; t < IN_BINDTYPE_COUNT; t++) { |
267 | offs = IN_BIND_OFFS(i, t); |
268 | if (in_gp2x_keys[i] == NULL) |
269 | binds[offs] = def_binds[offs] = 0; |
270 | if (binds[offs]) |
271 | count++; |
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272 | } |
e99d8048 |
273 | #if 0 |
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274 | eb = binds[IN_BIND_OFFS(i, IN_BINDTYPE_EMU)]; |
275 | if (eb & (PEV_VOL_DOWN|PEV_VOL_UP)) |
276 | have_vol = 1; |
277 | if (eb & PEV_MENU) |
278 | have_menu = 1; |
e99d8048 |
279 | #endif |
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280 | } |
281 | |
e99d8048 |
282 | // TODO: move to pico |
283 | #if 0 |
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284 | /* autobind some important keys, if they are unbound */ |
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285 | if (!have_vol && binds[GP2X_BTN_VOL_UP] == 0 && binds[GP2X_BTN_VOL_DOWN] == 0) { |
286 | binds[IN_BIND_OFFS(GP2X_BTN_VOL_UP, IN_BINDTYPE_EMU)] = PEV_VOL_UP; |
287 | binds[IN_BIND_OFFS(GP2X_BTN_VOL_DOWN, IN_BINDTYPE_EMU)] = PEV_VOL_DOWN; |
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288 | count += 2; |
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289 | } |
290 | |
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291 | if (!have_menu) { |
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292 | binds[IN_BIND_OFFS(GP2X_BTN_SELECT, IN_BINDTYPE_EMU)] = PEV_MENU; |
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293 | count++; |
294 | } |
e99d8048 |
295 | #endif |
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296 | |
e99d8048 |
297 | in_combos_find(binds, GP2X_BTN_PUSH, &in_gp2x_combo_keys, &in_gp2x_combo_acts); |
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298 | |
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299 | return count; |
13b692eb |
300 | } |
301 | |
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302 | static const in_drv_t in_gp2x_drv = { |
303 | .prefix = IN_GP2X_PREFIX, |
304 | .probe = in_gp2x_probe, |
305 | .free = in_gp2x_free, |
306 | .get_key_names = in_gp2x_get_key_names, |
307 | .clean_binds = in_gp2x_clean_binds, |
308 | .update = in_gp2x_update, |
309 | .update_keycode = in_gp2x_update_keycode, |
310 | .menu_translate = in_gp2x_menu_translate, |
311 | }; |
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312 | |
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313 | void in_gp2x_init(const struct in_default_bind *defbinds) |
314 | { |
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315 | if (gp2x_dev_id == GP2X_DEV_WIZ) |
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316 | in_gp2x_keys[GP2X_BTN_START] = "MENU"; |
4858c633 |
317 | |
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318 | in_gp2x_combo_keys = in_gp2x_combo_acts = 0; |
319 | |
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320 | in_register_driver(&in_gp2x_drv, defbinds); |
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321 | } |
322 | |