gl: clear w, h on reinit
[libpicofe.git] / gp2x / in_gp2x.c
index 81681ff..bfa2df1 100644 (file)
+/*
+ * (C) GraÅžvydas "notaz" Ignotas, 2006-2012
+ *
+ * This work is licensed under the terms of any of these licenses
+ * (at your option):
+ *  - GNU GPL, version 2 or later.
+ *  - GNU LGPL, version 2.1 or later.
+ *  - MAME license.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-
-#include "../common/common.h"
-#include "../common/input.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "../input.h"
+#include "soc.h"
+#include "plat_gp2x.h"
 #include "in_gp2x.h"
 
-#define IN_PREFIX "gp2x:"
+#define IN_GP2X_PREFIX "gp2x:"
 #define IN_GP2X_NBUTTONS 32
 
-/* note: in_gp2x hadles combos (if 2 btns have the same bind,
+/* note: in_gp2x handles 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 */
 
-extern volatile unsigned short *gp2x_memregs; /* from minimal library rlyeh */
-
-enum  { BTN_UP = 0,      BTN_LEFT = 2,      BTN_DOWN = 4,  BTN_RIGHT = 6,
-        BTN_START = 8,   BTN_SELECT = 9,    BTN_L = 10,    BTN_R = 11,
-        BTN_A = 12,      BTN_B = 13,        BTN_X = 14,    BTN_Y = 15,
-        BTN_VOL_UP = 23, BTN_VOL_DOWN = 22, BTN_PUSH = 27 };
+static int (*in_gp2x_get_bits)(void);
 
-static const char * const in_gp2x_prefix = IN_PREFIX;
-static const char * const in_gp2x_keys[IN_GP2X_NBUTTONS] = {
+static const char *in_gp2x_keys[IN_GP2X_NBUTTONS] = {
        [0 ... IN_GP2X_NBUTTONS-1] = NULL,
-       [BTN_UP]    = "UP",    [BTN_LEFT]   = "LEFT",   [BTN_DOWN] = "DOWN", [BTN_RIGHT] = "RIGHT",
-       [BTN_START] = "START", [BTN_SELECT] = "SELECT", [BTN_L]    = "L",    [BTN_R]     = "R",
-       [BTN_A]     = "A",     [BTN_B]      = "B",      [BTN_X]    = "X",    [BTN_Y]     = "Y",
-       [BTN_VOL_DOWN]= "VOL DOWN",                     [BTN_VOL_UP] = "VOL UP",
-       [BTN_PUSH] = "PUSH"
+       [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 void in_gp2x_probe(void)
-{
-       in_register(IN_PREFIX "GP2X pad", IN_DRVID_GP2X, -1, (void *)1, 1);
-}
-
-static int in_gp2x_get_bind_count(void)
-{
-       return IN_GP2X_NBUTTONS;
-}
-
-static int in_gp2x_get_gpio_bits(void)
+static int in_gp2x_get_mmsp2_bits(void)
 {
-#ifndef FAKE_IN_GP2X
        int value;
-       value = gp2x_memregs[0x1198>>1] & 0xff; // GPIO M
+       value = 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 |= memregs[0x1184>>1] & 0xFF00; // GPIO C
+       value |= memregs[0x1186>>1] << 16; // GPIO D
        value = ~value & 0x08c0ff55;
 
        return value;
-#else
-       extern int current_keys;
-       return current_keys;
-#endif
 }
 
-/* returns bitfield of binds of pressed buttons */
-int in_gp2x_update(void *drv_data, int *binds)
+static int in_gp2x_get_wiz_bits(void)
 {
-       int i, keys, ret = 0;
+       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;
 
-       keys = in_gp2x_get_gpio_bits();
+       return value;
+}
 
-       if (keys & in_gp2x_combo_keys)
-               return in_combos_do(keys, binds, BTN_PUSH, in_gp2x_combo_keys, in_gp2x_combo_acts);
+static void in_gp2x_probe(const in_drv_t *drv)
+{
+       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:
+               return;
+       }
+
+       in_register(IN_GP2X_PREFIX "GP2X pad", -1, NULL,
+               IN_GP2X_NBUTTONS, in_gp2x_keys, 1);
+}
 
-       for (i = 0; keys; i++) {
-               if (keys & 1)
-                       ret |= binds[i];
-               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(const in_drv_t *drv, 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;
        }
 
-       return ret;
+       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)
@@ -85,7 +157,7 @@ int in_gp2x_update_keycode(void *data, int *is_down)
        static int old_val = 0;
        int val, diff, i;
 
-       val = in_gp2x_get_gpio_bits();
+       val = in_gp2x_get_bits();
        diff = val ^ old_val;
        if (diff == 0)
                return -1;
@@ -102,104 +174,135 @@ int in_gp2x_update_keycode(void *data, int *is_down)
        return i;
 }
 
-static int in_gp2x_menu_translate(int keycode)
+static const struct {
+       short key;
+       short pbtn;
+} key_pbtn_map[] =
 {
-       switch (keycode) {
-               case BTN_UP:    return PBTN_UP;
-               case BTN_LEFT:  return PBTN_LEFT;
-               case BTN_DOWN:  return PBTN_DOWN;
-               case BTN_RIGHT: return PBTN_RIGHT;
-               case BTN_B:     return PBTN_MOK;
-               case BTN_X:     return PBTN_MBACK;
-               case BTN_SELECT:return PBTN_MENU;
-               case BTN_L:     return PBTN_L;
-               case BTN_R:     return PBTN_R;
-               default:        return 0;
-       }
-}
+       { 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_get_key_code(const char *key_name)
+static int in_gp2x_menu_translate(void *drv_data, int keycode, char *charcode)
 {
        int i;
-
-       for (i = 0; i < IN_GP2X_NBUTTONS; i++) {
-               const char *k = in_gp2x_keys[i];
-               if (k != NULL && strcasecmp(k, key_name) == 0)
-                       return 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 -1;
-}
-
-static const char *in_gp2x_get_key_name(int keycode)
-{
-       const char *name = NULL;
-       if (keycode >= 0 && keycode < IN_GP2X_NBUTTONS)
-               name = in_gp2x_keys[keycode];
-       if (name == NULL)
-               name = "Unkn";
-       
-       return name;
+       return 0;
 }
 
+#if 0 // TODO: move to pico
 static const struct {
        short code;
-       short bit;
-} in_gp2x_def_binds[] =
+       char btype;
+       char bit;
+} in_gp2x_defbinds[] =
 {
        /* MXYZ SACB RLDU */
-       { BTN_UP,       0 },
-       { BTN_DOWN,     1 },
-       { BTN_LEFT,     2 },
-       { BTN_RIGHT,    3 },
-       { BTN_X,        4 },    /* B */
-       { BTN_B,        5 },    /* C */
-       { BTN_A,        6 },    /* A */
-       { BTN_START,    7 },
+       { 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 },
 };
-
-#define DEF_BIND_COUNT (sizeof(in_gp2x_def_binds) / sizeof(in_gp2x_def_binds[0]))
-
-static void in_gp2x_get_def_binds(int *binds)
-{
-       int i;
-
-       for (i = 0; i < DEF_BIND_COUNT; i++)
-               binds[in_gp2x_def_binds[i].code] = 1 << in_gp2x_def_binds[i].bit;
-}
+#endif
 
 /* remove binds of missing keys, count remaining ones */
-static int in_gp2x_clean_binds(void *drv_data, int *binds)
+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++) {
-               if (in_gp2x_keys[i] == NULL)
-                       binds[i] = binds[i + IN_GP2X_NBUTTONS] = 0;
-               if (binds[i])
-                       count++;
+               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
        }
 
-       in_combos_find(binds, BTN_PUSH, &in_gp2x_combo_keys, &in_gp2x_combo_acts);
+       // 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;
+       }
 
-       return count;
+       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;
 }
 
-void in_gp2x_init(void *vdrv)
-{
-       in_drv_t *drv = vdrv;
+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,
+       .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(const struct in_default_bind *defbinds)
+{
+       if (gp2x_dev_id == GP2X_DEV_WIZ)
+               in_gp2x_keys[GP2X_BTN_START] = "MENU";
+       
        in_gp2x_combo_keys = in_gp2x_combo_acts = 0;
 
-       drv->prefix = in_gp2x_prefix;
-       drv->probe = in_gp2x_probe;
-       drv->get_bind_count = in_gp2x_get_bind_count;
-       drv->get_def_binds = in_gp2x_get_def_binds;
-       drv->clean_binds = in_gp2x_clean_binds;
-       drv->menu_translate = in_gp2x_menu_translate;
-       drv->get_key_code = in_gp2x_get_key_code;
-       drv->get_key_name = in_gp2x_get_key_name;
-       drv->update_keycode = in_gp2x_update_keycode;
+       in_register_driver(&in_gp2x_drv, defbinds, NULL);
 }