input layer mostly complete

[libpicofe.git] / linux / in_evdev.c

diff --git a/linux/in_evdev.c b/linux/in_evdev.c
index fe4a886..cfb31b6 100644 (file)
--- a/linux/in_evdev.c
+++ b/linux/in_evdev.c
@@ -12,10 +12,11 @@
 #include "../common/input.h"
 #include "in_evdev.h"
 
-#define BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
+#define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
        (1 << ((x) & (sizeof(keybits[0])*8-1))))
 
-static const char *in_evdev_keys[KEY_MAX + 1] = {
+static const char * const in_evdev_prefix = "evdev:";
+static const char * const in_evdev_keys[KEY_MAX + 1] = {
        [0 ... KEY_MAX] = NULL,
        [KEY_RESERVED] = "Reserved",            [KEY_ESC] = "Esc",
        [KEY_1] = "1",                          [KEY_2] = "2",
@@ -102,13 +103,13 @@ static const char *in_evdev_keys[KEY_MAX + 1] = {
 };
 
 
-int in_evdev_probe(void)
+static void in_evdev_probe(void)
 {
        int i;
 
        for (i = 0;; i++)
        {
-               int u, ret, fd, keybits[KEY_MAX/sizeof(int)];
+               int u, ret, fd, keybits[(KEY_MAX+1)/sizeof(int)];
                int support = 0, count = 0;
                char name[64];
 
@@ -134,15 +135,15 @@ int in_evdev_probe(void)
                }
 
                /* check for interesting keys */
-               for (u = 0; u < KEY_MAX; u++) {
-                       if (BIT(u) && u != KEY_POWER && u != KEY_SLEEP)
+               for (u = 0; u < KEY_MAX + 1; u++) {
+                       if (KEYBITS_BIT(u) && u != KEY_POWER && u != KEY_SLEEP)
                                count++;
                }
 
                if (count == 0)
                        goto skip;
 
-               strcpy(name, "evdev:");
+               strcpy(name, in_evdev_prefix);
                ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6);
                printf("in_evdev: found \"%s\" with %d events (type %08x)\n",
                        name+6, count, support);
@@ -152,24 +153,22 @@ int in_evdev_probe(void)
 skip:
                close(fd);
        }
-
-       return 0;
 }
 
-void in_evdev_free(void *drv_data)
+static void in_evdev_free(void *drv_data)
 {
        close((int)drv_data);
 }
 
-int in_evdev_bind_count(void)
+static int in_evdev_get_bind_count(void)
 {
-       return 512;
+       return KEY_MAX + 1;
 }
 
 int in_evdev_update(void *drv_data, int *binds)
 {
        struct input_event ev[16];
-       int keybits[KEY_MAX/sizeof(int)];
+       int keybits[(KEY_MAX+1)/sizeof(int)];
        int fd = (int)drv_data;
        int result = 0, changed = 0;
        int rd, ret, u;
@@ -196,8 +195,8 @@ int in_evdev_update(void *drv_data, int *binds)
        }
 
        printf("#%d: ", fd);
-       for (u = 0; u < KEY_MAX; u++) {
-               if (BIT(u)) {
+       for (u = 0; u < KEY_MAX + 1; u++) {
+               if (KEYBITS_BIT(u)) {
                        printf(" %d", u);
                        result |= binds[u];
                }
@@ -207,7 +206,7 @@ int in_evdev_update(void *drv_data, int *binds)
        return result;
 }
 
-void in_evdev_set_blocking(void *data, int y)
+static void in_evdev_set_blocking(void *data, int y)
 {
        long flags;
        int ret;
@@ -275,7 +274,7 @@ int in_evdev_update_keycode(void **data, int dcount, int *which, int *is_down)
        }
 }
 
-int in_evdev_menu_translate(int keycode)
+static int in_evdev_menu_translate(int keycode)
 {
        switch (keycode) {
                /* keyboards */
@@ -289,10 +288,24 @@ int in_evdev_menu_translate(int keycode)
        }
 }
 
-const char *in_evdev_get_key_name(int keycode)
+static int in_evdev_get_key_code(const char *key_name)
+{
+       int i;
+
+       for (i = 0; i < KEY_MAX + 1; i++) {
+               const char *k = in_evdev_keys[i];
+               if (k != NULL && k[0] == key_name[0] &&
+                               strcasecmp(k, key_name) == 0)
+                       return i;
+       }
+
+       return -1;
+}
+
+static const char *in_evdev_get_key_name(int keycode)
 {
        const char *name = NULL;
-       if (keycode >= 0 && keycode < KEY_MAX)
+       if (keycode >= 0 && keycode <= KEY_MAX)
                name = in_evdev_keys[keycode];
        if (name == NULL)
                name = "Unkn";
@@ -300,3 +313,67 @@ const char *in_evdev_get_key_name(int keycode)
        return name;
 }
 
+static const struct {
+       short code;
+       short bit;
+} in_evdev_def_binds[] =
+{
+       /* MXYZ SACB RLDU */
+       { KEY_UP,       0 },
+       { KEY_DOWN,     1 },
+       { KEY_LEFT,     2 },
+       { KEY_RIGHT,    3 },
+       { KEY_S,        4 },    /* B */
+       { KEY_D,        5 },    /* C */
+       { KEY_A,        6 },    /* A */
+       { KEY_ENTER,    7 },
+};
+
+#define DEF_BIND_COUNT (sizeof(in_evdev_def_binds) / sizeof(in_evdev_def_binds[0]))
+
+static void in_evdev_get_def_binds(int *binds)
+{
+       int i;
+
+       for (i = 0; i < DEF_BIND_COUNT; i++)
+               binds[in_evdev_def_binds[i].code] = 1 << in_evdev_def_binds[i].bit;
+}
+
+/* remove bad binds, count good ones */
+static int in_evdev_clean_binds(void *drv_data, int *binds)
+{
+       int keybits[(KEY_MAX+1)/sizeof(int)];
+       int i, ret, count = 0;
+
+       ret = ioctl((int)drv_data, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
+       if (ret == -1) {
+               perror("in_evdev: ioctl failed");
+               memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */
+       }
+
+       for (i = 0; i < KEY_MAX + 1; i++) {
+               if (!KEYBITS_BIT(i))
+                       binds[i] = binds[i + KEY_MAX + 1] = 0;
+               if (binds[i])
+                       count++;
+       }
+
+       return count;
+}
+
+void in_evdev_init(void *vdrv)
+{
+       in_drv_t *drv = vdrv;
+
+       drv->prefix = in_evdev_prefix;
+       drv->probe = in_evdev_probe;
+       drv->free = in_evdev_free;
+       drv->get_bind_count = in_evdev_get_bind_count;
+       drv->get_def_binds = in_evdev_get_def_binds;
+       drv->clean_binds = in_evdev_clean_binds;
+       drv->set_blocking = in_evdev_set_blocking;
+       drv->menu_translate = in_evdev_menu_translate;
+       drv->get_key_code = in_evdev_get_key_code;
+       drv->get_key_name = in_evdev_get_key_name;
+}
+