--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "../common/input.h"
+#include "in_gp2x.h"
+
+#define IN_GP2X_PREFIX "gp2x:"
+#define IN_GP2X_NBUTTONS 32
+
+/* note: in_gp2x hadles combos (if 2 btns have the same bind,
+ * both must be pressed for action to happen) */
+static int in_gp2x_combo_keys = 0;
+static int in_gp2x_combo_acts = 0;
+static int gpiodev = -1; /* Wiz only */
+
+static int (*in_gp2x_get_bits)(void);
+
+static const char *in_gp2x_keys[IN_GP2X_NBUTTONS] = {
+ [0 ... IN_GP2X_NBUTTONS-1] = NULL,
+ [GP2X_BTN_UP] = "Up", [GP2X_BTN_LEFT] = "Left",
+ [GP2X_BTN_DOWN] = "Down", [GP2X_BTN_RIGHT] = "Right",
+ [GP2X_BTN_START] = "Start", [GP2X_BTN_SELECT] = "Select",
+ [GP2X_BTN_L] = "L", [GP2X_BTN_R] = "R",
+ [GP2X_BTN_A] = "A", [GP2X_BTN_B] = "B",
+ [GP2X_BTN_X] = "X", [GP2X_BTN_Y] = "Y",
+ [GP2X_BTN_VOL_DOWN] = "VOL DOWN",
+ [GP2X_BTN_VOL_UP] = "VOL UP",
+ [GP2X_BTN_PUSH] = "PUSH"
+};
+
+
+static int in_gp2x_get_mmsp2_bits(void)
+{
+ extern volatile unsigned short *gp2x_memregs;
+ int value;
+ value = gp2x_memregs[0x1198>>1] & 0xff; // GPIO M
+ if (value == 0xFD) value = 0xFA;
+ if (value == 0xF7) value = 0xEB;
+ if (value == 0xDF) value = 0xAF;
+ if (value == 0x7F) value = 0xBE;
+ value |= gp2x_memregs[0x1184>>1] & 0xFF00; // GPIO C
+ value |= gp2x_memregs[0x1186>>1] << 16; // GPIO D
+ value = ~value & 0x08c0ff55;
+
+ return value;
+}
+
+static int in_gp2x_get_wiz_bits(void)
+{
+ int r, value = 0;
+ r = read(gpiodev, &value, 4);
+ if (value & 0x02)
+ value |= 0x05;
+ if (value & 0x08)
+ value |= 0x14;
+ if (value & 0x20)
+ value |= 0x50;
+ if (value & 0x80)
+ value |= 0x41;
+
+ /* convert to GP2X style */
+ value &= 0x7ff55;
+ if (value & (1 << 16))
+ value |= 1 << GP2X_BTN_VOL_UP;
+ if (value & (1 << 17))
+ value |= 1 << GP2X_BTN_VOL_DOWN;
+ if (value & (1 << 18))
+ value |= 1 << GP2X_BTN_PUSH;
+ value &= ~0x70000;
+
+ return value;
+}
+
+#ifdef FAKE_IN_GP2X
+volatile unsigned short *gp2x_memregs;
+int gp2x_dev_id = -1;
+
+static int in_gp2x_get_fake_bits(void)
+{
+ extern int current_keys;
+ return current_keys;
+}
+#endif
+
+static void in_gp2x_probe(void)
+{
+ switch (gp2x_dev_id)
+ {
+ case GP2X_DEV_GP2X:
+ in_gp2x_get_bits = in_gp2x_get_mmsp2_bits;
+ break;
+ case GP2X_DEV_WIZ:
+ gpiodev = open("/dev/GPIO", O_RDONLY);
+ if (gpiodev < 0) {
+ perror("in_gp2x: couldn't open /dev/GPIO");
+ return;
+ }
+ in_gp2x_get_bits = in_gp2x_get_wiz_bits;
+ break;
+ // we'll use evdev for Caanoo
+ default:
+#ifdef FAKE_IN_GP2X
+ in_gp2x_get_bits = in_gp2x_get_fake_bits;
+ break;
+#endif
+ return;
+ }
+
+ in_register(IN_GP2X_PREFIX "GP2X pad", -1, NULL,
+ IN_GP2X_NBUTTONS, in_gp2x_keys, 1);
+}
+
+static void in_gp2x_free(void *drv_data)
+{
+ if (gpiodev >= 0) {
+ close(gpiodev);
+ gpiodev = -1;
+ }
+}
+
+static const char * const *
+in_gp2x_get_key_names(int *count)
+{
+ *count = IN_GP2X_NBUTTONS;
+ return in_gp2x_keys;
+}
+
+/* ORs result with pressed buttons */
+static int in_gp2x_update(void *drv_data, const int *binds, int *result)
+{
+ int type_start = 0;
+ int i, t, keys;
+
+ keys = in_gp2x_get_bits();
+
+ if (keys & in_gp2x_combo_keys) {
+ result[IN_BINDTYPE_EMU] = in_combos_do(keys, binds, GP2X_BTN_PUSH,
+ in_gp2x_combo_keys, in_gp2x_combo_acts);
+ type_start = IN_BINDTYPE_PLAYER12;
+ }
+
+ for (i = 0; keys; i++, keys >>= 1) {
+ if (!(keys & 1))
+ continue;
+
+ for (t = type_start; t < IN_BINDTYPE_COUNT; t++)
+ result[t] |= binds[IN_BIND_OFFS(i, t)];
+ }
+
+ return 0;
+}
+
+int in_gp2x_update_keycode(void *data, int *is_down)
+{
+ static int old_val = 0;
+ int val, diff, i;
+
+ val = in_gp2x_get_bits();
+ diff = val ^ old_val;
+ if (diff == 0)
+ return -1;
+
+ /* take one bit only */
+ for (i = 0; i < sizeof(diff)*8; i++)
+ if (diff & (1<<i))
+ break;
+
+ old_val ^= 1 << i;
+
+ if (is_down)
+ *is_down = !!(val & (1<<i));
+ return i;
+}
+
+static const struct {
+ short key;
+ short pbtn;
+} key_pbtn_map[] =
+{
+ { GP2X_BTN_UP, PBTN_UP },
+ { GP2X_BTN_DOWN, PBTN_DOWN },
+ { GP2X_BTN_LEFT, PBTN_LEFT },
+ { GP2X_BTN_RIGHT, PBTN_RIGHT },
+ { GP2X_BTN_B, PBTN_MOK },
+ { GP2X_BTN_X, PBTN_MBACK },
+ { GP2X_BTN_A, PBTN_MA2 },
+ { GP2X_BTN_Y, PBTN_MA3 },
+ { GP2X_BTN_L, PBTN_L },
+ { GP2X_BTN_R, PBTN_R },
+ { GP2X_BTN_SELECT, PBTN_MENU },
+};
+
+#define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]))
+
+static int in_gp2x_menu_translate(void *drv_data, int keycode)
+{
+ int i;
+ if (keycode < 0)
+ {
+ /* menu -> kc */
+ keycode = -keycode;
+ for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
+ if (key_pbtn_map[i].pbtn == keycode)
+ return key_pbtn_map[i].key;
+ }
+ else
+ {
+ for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
+ if (key_pbtn_map[i].key == keycode)
+ return key_pbtn_map[i].pbtn;
+ }
+
+ return 0;
+}
+
+#if 0 // TODO: move to pico
+static const struct {
+ short code;
+ char btype;
+ char bit;
+} in_gp2x_defbinds[] =
+{
+ /* MXYZ SACB RLDU */
+ { BTN_UP, IN_BINDTYPE_PLAYER12, 0 },
+ { BTN_DOWN, IN_BINDTYPE_PLAYER12, 1 },
+ { BTN_LEFT, IN_BINDTYPE_PLAYER12, 2 },
+ { BTN_RIGHT, IN_BINDTYPE_PLAYER12, 3 },
+ { BTN_X, IN_BINDTYPE_PLAYER12, 4 }, /* B */
+ { BTN_B, IN_BINDTYPE_PLAYER12, 5 }, /* C */
+ { BTN_A, IN_BINDTYPE_PLAYER12, 6 }, /* A */
+ { BTN_START, IN_BINDTYPE_PLAYER12, 7 },
+ { BTN_SELECT, IN_BINDTYPE_EMU, PEVB_MENU },
+// { BTN_Y, IN_BINDTYPE_EMU, PEVB_SWITCH_RND },
+ { BTN_L, IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
+ { BTN_R, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
+ { BTN_VOL_UP, IN_BINDTYPE_EMU, PEVB_VOL_UP },
+ { BTN_VOL_DOWN, IN_BINDTYPE_EMU, PEVB_VOL_DOWN },
+ { 0, 0, 0 },
+};
+#endif
+
+static void in_gp2x_get_def_binds(int *binds)
+{
+ int i;
+
+ for (i = 0; 1; i++) {
+ if (in_gp2x_defbinds[i].bit == 0 && in_gp2x_defbinds[i].code == 0)
+ break;
+ binds[IN_BIND_OFFS(in_gp2x_defbinds[i].code, in_gp2x_defbinds[i].btype)] =
+ 1 << in_gp2x_defbinds[i].bit;
+ }
+}
+
+/* remove binds of missing keys, count remaining ones */
+static int in_gp2x_clean_binds(void *drv_data, int *binds, int *def_binds)
+{
+ int i, count = 0;
+// int eb, have_vol = 0, have_menu = 0;
+
+ for (i = 0; i < IN_GP2X_NBUTTONS; i++) {
+ int t, offs;
+ for (t = 0; t < IN_BINDTYPE_COUNT; t++) {
+ offs = IN_BIND_OFFS(i, t);
+ if (in_gp2x_keys[i] == NULL)
+ binds[offs] = def_binds[offs] = 0;
+ if (binds[offs])
+ count++;
+ }
+#if 0
+ eb = binds[IN_BIND_OFFS(i, IN_BINDTYPE_EMU)];
+ if (eb & (PEV_VOL_DOWN|PEV_VOL_UP))
+ have_vol = 1;
+ if (eb & PEV_MENU)
+ have_menu = 1;
+#endif
+ }
+
+ // TODO: move to pico
+#if 0
+ /* autobind some important keys, if they are unbound */
+ if (!have_vol && binds[GP2X_BTN_VOL_UP] == 0 && binds[GP2X_BTN_VOL_DOWN] == 0) {
+ binds[IN_BIND_OFFS(GP2X_BTN_VOL_UP, IN_BINDTYPE_EMU)] = PEV_VOL_UP;
+ binds[IN_BIND_OFFS(GP2X_BTN_VOL_DOWN, IN_BINDTYPE_EMU)] = PEV_VOL_DOWN;
+ count += 2;
+ }
+
+ if (!have_menu) {
+ binds[IN_BIND_OFFS(GP2X_BTN_SELECT, IN_BINDTYPE_EMU)] = PEV_MENU;
+ count++;
+ }
+#endif
+
+ in_combos_find(binds, GP2X_BTN_PUSH, &in_gp2x_combo_keys, &in_gp2x_combo_acts);
+
+ return count;
+}
+
+static const in_drv_t in_gp2x_drv = {
+ .prefix = IN_GP2X_PREFIX,
+ .probe = in_gp2x_probe,
+ .free = in_gp2x_free,
+ .get_key_names = in_gp2x_get_key_names,
+ .get_def_binds = in_gp2x_get_def_binds,
+ .clean_binds = in_gp2x_clean_binds,
+ .update = in_gp2x_update,
+ .update_keycode = in_gp2x_update_keycode,
+ .menu_translate = in_gp2x_menu_translate,
+};
+
+void in_gp2x_init(void)
+{
+ if (gp2x_dev_id == GP2X_DEV_WIZ)
+ in_gp2x_keys[GP2X_BTN_START] = "MENU";
+
+ in_gp2x_combo_keys = in_gp2x_combo_acts = 0;
+
+ in_register_driver(&in_gp2x_drv);
+}
+
notaz.gp2x.de / pcsx_rearmed.git / blobdiff