9 #include "../common/input.h"
13 #define IN_PREFIX "gp2x:"
14 #define IN_GP2X_NBUTTONS 32
16 /* note: in_gp2x hadles combos (if 2 btns have the same bind,
17 * both must be pressed for action to happen) */
18 static int in_gp2x_combo_keys = 0;
19 static int in_gp2x_combo_acts = 0;
20 static int gpiodev = -1; /* Wiz only */
22 static int (*in_gp2x_get_bits)(void);
24 enum { BTN_UP = 0, BTN_LEFT = 2, BTN_DOWN = 4, BTN_RIGHT = 6,
25 BTN_START = 8, BTN_SELECT = 9, BTN_L = 10, BTN_R = 11,
26 BTN_A = 12, BTN_B = 13, BTN_X = 14, BTN_Y = 15,
27 BTN_VOL_UP = 23, BTN_VOL_DOWN = 22, BTN_PUSH = 27 };
29 static const char * const in_gp2x_prefix = IN_PREFIX;
30 static const char * const in_gp2x_keys[IN_GP2X_NBUTTONS] = {
31 [0 ... IN_GP2X_NBUTTONS-1] = NULL,
32 [BTN_UP] = "UP", [BTN_LEFT] = "LEFT", [BTN_DOWN] = "DOWN", [BTN_RIGHT] = "RIGHT",
33 [BTN_START] = "START", [BTN_SELECT] = "SELECT", [BTN_L] = "L", [BTN_R] = "R",
34 [BTN_A] = "A", [BTN_B] = "B", [BTN_X] = "X", [BTN_Y] = "Y",
35 [BTN_VOL_DOWN]= "VOL DOWN", [BTN_VOL_UP] = "VOL UP",
39 static int in_gp2x_get_mmsp2_bits(void);
40 static int in_gp2x_get_wiz_bits(void);
42 static void in_gp2x_probe(void)
50 in_gp2x_get_bits = in_gp2x_get_mmsp2_bits;
53 gpiodev = open("/dev/GPIO", O_RDONLY);
55 perror("in_gp2x: couldn't open /dev/GPIO");
58 in_gp2x_get_bits = in_gp2x_get_wiz_bits;
64 in_register(IN_PREFIX "GP2X pad", IN_DRVID_GP2X, -1, (void *)1, 1);
67 static void in_gp2x_free(void *drv_data)
75 static int in_gp2x_get_bind_count(void)
77 return IN_GP2X_NBUTTONS;
80 static int in_gp2x_get_mmsp2_bits(void)
83 extern volatile unsigned short *gp2x_memregs;
85 value = gp2x_memregs[0x1198>>1] & 0xff; // GPIO M
86 if (value == 0xFD) value = 0xFA;
87 if (value == 0xF7) value = 0xEB;
88 if (value == 0xDF) value = 0xAF;
89 if (value == 0x7F) value = 0xBE;
90 value |= gp2x_memregs[0x1184>>1] & 0xFF00; // GPIO C
91 value |= gp2x_memregs[0x1186>>1] << 16; // GPIO D
92 value = ~value & 0x08c0ff55;
96 extern int current_keys;
101 static int in_gp2x_get_wiz_bits(void)
104 read(gpiodev, &value, 4);
114 /* convert to GP2X style */
116 if (value & (1 << 16))
117 value |= 1 << BTN_VOL_UP;
118 if (value & (1 << 17))
119 value |= 1 << BTN_VOL_DOWN;
120 if (value & (1 << 18))
121 value |= 1 << BTN_PUSH;
127 /* returns bitfield of binds of pressed buttons */
128 int in_gp2x_update(void *drv_data, int *binds)
130 int i, keys, ret = 0;
132 keys = in_gp2x_get_bits();
134 if (keys & in_gp2x_combo_keys)
135 return in_combos_do(keys, binds, BTN_PUSH, in_gp2x_combo_keys, in_gp2x_combo_acts);
137 for (i = 0; keys; i++) {
146 int in_gp2x_update_keycode(void *data, int *is_down)
148 static int old_val = 0;
151 val = in_gp2x_get_bits();
152 diff = val ^ old_val;
156 /* take one bit only */
157 for (i = 0; i < sizeof(diff)*8; i++)
164 *is_down = !!(val & (1<<i));
168 static const struct {
174 { BTN_DOWN, PBTN_DOWN },
175 { BTN_LEFT, PBTN_LEFT },
176 { BTN_RIGHT, PBTN_RIGHT },
178 { BTN_X, PBTN_MBACK },
183 { BTN_SELECT, PBTN_MENU },
186 #define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]))
188 static int in_gp2x_menu_translate(int keycode)
195 for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
196 if (key_pbtn_map[i].pbtn == keycode)
197 return key_pbtn_map[i].key;
201 for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
202 if (key_pbtn_map[i].key == keycode)
203 return key_pbtn_map[i].pbtn;
209 static int in_gp2x_get_key_code(const char *key_name)
213 for (i = 0; i < IN_GP2X_NBUTTONS; i++) {
214 const char *k = in_gp2x_keys[i];
215 if (k != NULL && strcasecmp(k, key_name) == 0)
222 static const char *in_gp2x_get_key_name(int keycode)
224 const char *name = NULL;
225 if (keycode >= 0 && keycode < IN_GP2X_NBUTTONS)
226 name = in_gp2x_keys[keycode];
233 static const struct {
236 } in_gp2x_def_binds[] =
243 { BTN_X, 4 }, /* B */
244 { BTN_B, 5 }, /* C */
245 { BTN_A, 6 }, /* A */
247 { BTN_SELECT, 23 }, /* menu */
248 { BTN_Y, 26 }, /* switch rend */
249 { BTN_L, 27 }, /* save state */
250 { BTN_R, 28 }, /* load state */
251 { BTN_VOL_UP, 29 }, /* vol up */
252 { BTN_VOL_DOWN, 30 }, /* vol down */
255 #define DEF_BIND_COUNT (sizeof(in_gp2x_def_binds) / sizeof(in_gp2x_def_binds[0]))
257 static void in_gp2x_get_def_binds(int *binds)
261 for (i = 0; i < DEF_BIND_COUNT; i++)
262 binds[in_gp2x_def_binds[i].code] = 1 << in_gp2x_def_binds[i].bit;
265 /* remove binds of missing keys, count remaining ones */
266 static int in_gp2x_clean_binds(void *drv_data, int *binds)
268 int i, count = 0, have_vol = 0, have_menu = 0;
270 for (i = 0; i < IN_GP2X_NBUTTONS; i++) {
271 if (in_gp2x_keys[i] == NULL)
272 binds[i] = binds[i + IN_GP2X_NBUTTONS] = 0;
275 if (binds[i] & ((1 << 29)|(1 << 30)))
277 if (binds[i] & (1 << 23))
282 /* autobind some important keys, if they are unbound */
283 if (!have_vol && binds[BTN_VOL_UP] == 0 && binds[BTN_VOL_DOWN] == 0) {
284 binds[BTN_VOL_UP] = 1 << 29;
285 binds[BTN_VOL_DOWN] = 1 << 30;
288 if (!have_menu && binds[BTN_SELECT] == 0)
289 binds[BTN_SELECT] = 1 << 23;
291 in_combos_find(binds, BTN_PUSH, &in_gp2x_combo_keys, &in_gp2x_combo_acts);
297 void in_gp2x_init(void *vdrv)
299 in_drv_t *drv = vdrv;
301 in_gp2x_combo_keys = in_gp2x_combo_acts = 0;
303 drv->prefix = in_gp2x_prefix;
304 drv->probe = in_gp2x_probe;
305 drv->free = in_gp2x_free;
306 drv->get_bind_count = in_gp2x_get_bind_count;
307 drv->get_def_binds = in_gp2x_get_def_binds;
308 drv->clean_binds = in_gp2x_clean_binds;
309 drv->menu_translate = in_gp2x_menu_translate;
310 drv->get_key_code = in_gp2x_get_key_code;
311 drv->get_key_name = in_gp2x_get_key_name;
312 drv->update_keycode = in_gp2x_update_keycode;