#include <linux/input.h>
#include <errno.h>
-#include "../common/common.h"
#include "../common/input.h"
#include "in_evdev.h"
typedef struct {
int fd;
- int prev_update;
+ int *kbits;
+ int abs_min_x;
+ int abs_max_x;
+ int abs_min_y;
+ int abs_max_y;
int abs_lzone;
- int abs_rzone;
- int abs_tzone;
- int abs_bzone;
int abs_lastx;
int abs_lasty;
+ int kc_first;
+ int kc_last;
} in_evdev_t;
+#ifndef KEY_CNT
+#define KEY_CNT (KEY_MAX + 1)
+#endif
+
#define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
(1 << ((x) & (sizeof(keybits[0])*8-1))))
#define KEYBITS_BIT_SET(x) (keybits[(x)/sizeof(keybits[0])/8] |= \
(1 << ((x) & (sizeof(keybits[0])*8-1))))
+#define KEYBITS_BIT_CLEAR(x) (keybits[(x)/sizeof(keybits[0])/8] &= \
+ ~(1 << ((x) & (sizeof(keybits[0])*8-1))))
+
static const char * const in_evdev_prefix = "evdev:";
-static const char * const in_evdev_keys[KEY_MAX + 1] = {
+static const char * const in_evdev_keys[KEY_CNT] = {
[0 ... KEY_MAX] = NULL,
[KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc",
[KEY_1] = "1", [KEY_2] = "2",
static void in_evdev_probe(void)
{
+ long keybits[KEY_CNT / sizeof(long) / 8];
+ long absbits[(ABS_MAX+1) / sizeof(long) / 8];
int i;
+ // the kernel might support and return less keys then we know about,
+ // so make sure the buffers are clear.
+ memset(keybits, 0, sizeof(keybits));
+ memset(absbits, 0, sizeof(absbits));
+
for (i = 0;; i++)
{
- int keybits[(KEY_MAX+1)/sizeof(int)], absbits[(ABS_MAX+1)/sizeof(int)];
int support = 0, count = 0;
+ int u, ret, fd, kc_first, kc_last;
in_evdev_t *dev;
- int u, ret, fd;
char name[64];
snprintf(name, sizeof(name), "/dev/input/event%d", i);
fd = open(name, O_RDONLY|O_NONBLOCK);
- if (fd == -1)
+ if (fd == -1) {
+ if (errno == EACCES)
+ continue; /* maybe we can access next one */
break;
+ }
/* check supported events */
ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support);
}
/* check for interesting keys */
- for (u = 0; u < KEY_MAX + 1; u++) {
- if (KEYBITS_BIT(u) && u != KEY_POWER && u != KEY_SLEEP)
- count++;
+ kc_first = KEY_MAX;
+ kc_last = 0;
+ for (u = 0; u < KEY_CNT; u++) {
+ if (KEYBITS_BIT(u)) {
+ if (u < kc_first)
+ kc_first = u;
+ if (u > kc_last)
+ kc_last = u;
+ if (u != KEY_POWER && u != KEY_SLEEP && u != BTN_TOUCH)
+ count++;
+ }
}
if (count == 0)
if (dev == NULL)
goto skip;
+ ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits);
+ if (ret == -1) {
+ printf("Warning: EVIOCGKEY not supported, will have to track state\n");
+ dev->kbits = calloc(KEY_CNT, sizeof(int));
+ if (dev->kbits == NULL) {
+ free(dev);
+ goto skip;
+ }
+ }
+
/* check for abs too */
if (support & (1 << EV_ABS)) {
struct input_absinfo ainfo;
if (ret == -1)
goto no_abs;
dist = ainfo.maximum - ainfo.minimum;
- dev->abs_lzone = ainfo.minimum + dist / 4;
- dev->abs_rzone = ainfo.maximum - dist / 4;
+ dev->abs_lzone = dist / 4;
+ dev->abs_min_x = ainfo.minimum;
+ dev->abs_max_x = ainfo.maximum;
}
if (absbits[0] & (1 << ABS_Y)) {
ret = ioctl(fd, EVIOCGABS(ABS_Y), &ainfo);
if (ret == -1)
goto no_abs;
dist = ainfo.maximum - ainfo.minimum;
- dev->abs_tzone = ainfo.minimum + dist / 4;
- dev->abs_bzone = ainfo.maximum - dist / 4;
+ dev->abs_min_y = ainfo.minimum;
+ dev->abs_max_y = ainfo.maximum;
}
}
no_abs:
dev->fd = fd;
+ dev->kc_first = kc_first;
+ dev->kc_last = kc_last;
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);
- in_register(name, IN_DRVID_EVDEV, fd, dev, 0);
+ in_register(name, IN_DRVID_EVDEV, fd, dev, KEY_CNT, in_evdev_keys, 0);
continue;
skip:
static int in_evdev_get_bind_count(void)
{
- return KEY_MAX + 1;
+ return KEY_CNT;
}
-/* returns bitfield of binds of pressed buttons */
-int in_evdev_update(void *drv_data, int *binds)
+static void or_binds(const int *binds, int key, int *result)
+{
+ int t;
+ for (t = 0; t < IN_BINDTYPE_COUNT; t++)
+ result[t] |= binds[IN_BIND_OFFS(key, t)];
+}
+
+/* ORs result with binds of pressed buttons
+ * XXX: should measure performance hit of this func, might need to optimize */
+int in_evdev_update(void *drv_data, const int *binds, int *result)
{
struct input_event ev[16];
struct input_absinfo ainfo;
- int keybits[(KEY_MAX+1)/sizeof(int)];
+ int keybits_[KEY_CNT / sizeof(int)];
+ int *keybits = keybits_;
in_evdev_t *dev = drv_data;
- int result = 0, changed = 0;
- int rd, ret, u;
-
- while (1) {
- rd = read(dev->fd, ev, sizeof(ev));
- if (rd < (int)sizeof(ev[0])) {
- if (errno != EAGAIN)
- perror("in_evdev: read failed");
- break;
- }
+ int rd, ret, u, lzone;
- changed = 1;
+ if (dev->kbits == NULL) {
+ ret = ioctl(dev->fd, EVIOCGKEY(sizeof(keybits_)), keybits_);
+ if (ret == -1) {
+ perror("in_evdev: ioctl failed");
+ return -1;
+ }
}
-
- if (!changed)
- return dev->prev_update;
-
- ret = ioctl(dev->fd, EVIOCGKEY(sizeof(keybits)), keybits);
- if (ret == -1) {
- perror("in_evdev: ioctl failed");
- return 0;
+ else {
+ keybits = dev->kbits;
+ while (1) {
+ rd = read(dev->fd, ev, sizeof(ev));
+ if (rd < (int)sizeof(ev[0])) {
+ if (errno != EAGAIN)
+ perror("in_evdev: read failed");
+ break;
+ }
+ for (u = 0; u < rd / sizeof(ev[0]); u++) {
+ if (ev[u].type != EV_KEY)
+ continue;
+ else if (ev[u].value == 1)
+ KEYBITS_BIT_SET(ev[u].code);
+ else if (ev[u].value == 0)
+ KEYBITS_BIT_CLEAR(ev[u].code);
+ }
+ }
}
- for (u = 0; u < KEY_MAX + 1; u++) {
- if (KEYBITS_BIT(u)) {
- result |= binds[u];
- }
+ for (u = dev->kc_first; u <= dev->kc_last; u++) {
+ if (KEYBITS_BIT(u))
+ or_binds(binds, u, result);
}
/* map X and Y absolute to UDLR */
- if (dev->abs_lzone != 0) {
+ lzone = dev->abs_lzone;
+ if (lzone != 0) {
ret = ioctl(dev->fd, EVIOCGABS(ABS_X), &ainfo);
if (ret != -1) {
- if (ainfo.value < dev->abs_lzone) result |= binds[KEY_LEFT];
- if (ainfo.value > dev->abs_rzone) result |= binds[KEY_RIGHT];
+ if (ainfo.value < dev->abs_min_x + lzone) or_binds(binds, KEY_LEFT, result);
+ if (ainfo.value > dev->abs_max_x - lzone) or_binds(binds, KEY_RIGHT, result);
}
}
- if (dev->abs_tzone != 0) {
+ if (lzone != 0) {
ret = ioctl(dev->fd, EVIOCGABS(ABS_Y), &ainfo);
if (ret != -1) {
- if (ainfo.value < dev->abs_tzone) result |= binds[KEY_UP];
- if (ainfo.value > dev->abs_bzone) result |= binds[KEY_DOWN];
+ if (ainfo.value < dev->abs_min_y + lzone) or_binds(binds, KEY_UP, result);
+ if (ainfo.value > dev->abs_max_y - lzone) or_binds(binds, KEY_DOWN, result);
}
}
- dev->prev_update = result;
- return result;
+ return 0;
}
-static void in_evdev_set_blocking(void *drv_data, int y)
+static int in_evdev_set_blocking(in_evdev_t *dev, int y)
{
- in_evdev_t *dev = drv_data;
long flags;
int ret;
- dev->prev_update = 0;
-
flags = (long)fcntl(dev->fd, F_GETFL);
if ((int)flags == -1) {
perror("in_evdev: F_GETFL fcntl failed");
- return;
+ return -1;
+ }
+
+ if (flags & O_NONBLOCK) {
+ /* flush the event queue */
+ struct input_event ev;
+ do {
+ ret = read(dev->fd, &ev, sizeof(ev));
+ }
+ while (ret == sizeof(ev));
}
+
if (y)
flags &= ~O_NONBLOCK;
else
flags |= O_NONBLOCK;
ret = fcntl(dev->fd, F_SETFL, flags);
- if (ret == -1)
+ if (ret == -1) {
perror("in_evdev: F_SETFL fcntl failed");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int in_evdev_set_config(void *drv_data, int what, int val)
+{
+ in_evdev_t *dev = drv_data;
+ int tmp;
+
+ switch (what) {
+ case IN_CFG_BLOCKING:
+ return in_evdev_set_blocking(dev, val);
+ case IN_CFG_ABS_DEAD_ZONE:
+ if (val < 1 || val > 99 || dev->abs_lzone == 0)
+ return -1;
+ /* XXX: based on X axis only, for now.. */
+ tmp = (dev->abs_max_x - dev->abs_min_x) / 2;
+ dev->abs_lzone = tmp - tmp * val / 100;
+ if (dev->abs_lzone < 1)
+ dev->abs_lzone = 1;
+ else if (dev->abs_lzone >= tmp)
+ dev->abs_lzone = tmp - 1;
+ break;
+ default:
+ return -1;
+ }
+
+ return 0;
}
static int in_evdev_update_keycode(void *data, int *is_down)
{
+ int ret_kc = -1, ret_down = 0;
in_evdev_t *dev = data;
struct input_event ev;
int rd;
- if (is_down != NULL)
- *is_down = 0;
-
rd = read(dev->fd, &ev, sizeof(ev));
if (rd < (int) sizeof(ev)) {
if (errno != EAGAIN) {
perror("in_evdev: error reading");
sleep(1);
}
- return -1;
+ goto out;
}
if (ev.type == EV_KEY) {
if (ev.value < 0 || ev.value > 1)
- return -1;
- if (is_down != NULL)
- *is_down = ev.value;
- return ev.code;
+ goto out;
+ ret_kc = ev.code;
+ ret_down = ev.value;
+ goto out;
}
else if (ev.type == EV_ABS)
{
- int down = 0;
- if (dev->abs_lzone != 0 && ev.code == ABS_X) {
- if (ev.value < dev->abs_lzone) {
- down = 1;
- dev->abs_lastx = KEY_LEFT;
- }
- else if (ev.value > dev->abs_rzone) {
- down = 1;
- dev->abs_lastx = KEY_RIGHT;
- }
- if (is_down != NULL)
- *is_down = down;
- return dev->abs_lastx;
+ int lzone = dev->abs_lzone, down = 0, *last;
+
+ // map absolute to up/down/left/right
+ if (lzone != 0 && ev.code == ABS_X) {
+ if (ev.value < dev->abs_min_x + lzone)
+ down = KEY_LEFT;
+ else if (ev.value > dev->abs_max_x - lzone)
+ down = KEY_RIGHT;
+ last = &dev->abs_lastx;
}
- if (dev->abs_tzone != 0 && ev.code == ABS_Y) {
- if (ev.value < dev->abs_tzone) {
- down = 1;
- dev->abs_lasty = KEY_UP;
- }
- else if (ev.value > dev->abs_bzone) {
- down = 1;
- dev->abs_lasty = KEY_DOWN;
- }
- if (is_down != NULL)
- *is_down = down;
- return dev->abs_lasty;
+ else if (lzone != 0 && ev.code == ABS_Y) {
+ if (ev.value < dev->abs_min_y + lzone)
+ down = KEY_UP;
+ else if (ev.value > dev->abs_max_y - lzone)
+ down = KEY_DOWN;
+ last = &dev->abs_lasty;
+ }
+ else
+ goto out;
+
+ if (down == *last)
+ goto out;
+
+ if (down == 0 || *last != 0) {
+ /* key up or direction change, return up event for old key */
+ ret_kc = *last;
+ ret_down = 0;
+ *last = 0;
+ goto out;
}
+ ret_kc = *last = down;
+ ret_down = 1;
+ goto out;
}
- return -1;
+out:
+ if (is_down != NULL)
+ *is_down = ret_down;
+
+ return ret_kc;
}
-static int in_evdev_menu_translate(int keycode)
+static const struct {
+ short key;
+ short pbtn;
+} key_pbtn_map[] =
{
- switch (keycode) {
- case KEY_UP: return PBTN_UP;
- case KEY_DOWN: return PBTN_DOWN;
- case KEY_LEFT: return PBTN_LEFT;
- case KEY_RIGHT: return PBTN_RIGHT;
- case KEY_ENTER:
- case BTN_A:
- case BTN_TRIGGER:
- return PBTN_MOK;
- case KEY_ESC:
- case BTN_B:
- case BTN_THUMB:
- return PBTN_MBACK;
- case KEY_MENU:
- return PBTN_MENU;
- case KEY_LEFTBRACE:
- return PBTN_L;
- case KEY_RIGHTBRACE:
- return PBTN_R;
- default: return 0;
- }
-}
+ { KEY_UP, PBTN_UP },
+ { KEY_DOWN, PBTN_DOWN },
+ { KEY_LEFT, PBTN_LEFT },
+ { KEY_RIGHT, PBTN_RIGHT },
+ /* XXX: maybe better set this from it's plat code somehow */
+ /* Pandora */
+ { KEY_END, PBTN_MOK },
+ { KEY_PAGEDOWN, PBTN_MBACK },
+ { KEY_HOME, PBTN_MA2 },
+ { KEY_PAGEUP, PBTN_MA3 },
+ { KEY_LEFTCTRL, PBTN_MENU },
+ { KEY_RIGHTSHIFT, PBTN_L },
+ { KEY_RIGHTCTRL, PBTN_R },
+ /* Caanoo */
+ { BTN_THUMB2, PBTN_MOK },
+ { BTN_THUMB, PBTN_MBACK },
+ { BTN_TRIGGER, PBTN_MA2 },
+ { BTN_TOP, PBTN_MA3 },
+ { BTN_BASE, PBTN_MENU },
+ { BTN_TOP2, PBTN_L },
+ { BTN_PINKIE, PBTN_R },
+ /* "normal" keyboards */
+ { KEY_ENTER, PBTN_MOK },
+ { KEY_ESC, PBTN_MBACK },
+ { KEY_A, PBTN_MA2 },
+ { KEY_S, PBTN_MA3 },
+ { KEY_BACKSLASH, PBTN_MENU },
+ { KEY_LEFTBRACE, PBTN_L },
+ { KEY_RIGHTBRACE, PBTN_R },
+};
+
+#define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]))
-static int in_evdev_get_key_code(const char *key_name)
+static int in_evdev_menu_translate(void *drv_data, int keycode)
{
+ in_evdev_t *dev = drv_data;
int i;
- for (i = 0; i < KEY_MAX + 1; i++) {
- const char *k = in_evdev_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) {
+ int k = key_pbtn_map[i].key;
+ /* should really check EVIOCGBIT, but this is enough for now */
+ if (dev->kc_first <= k && k <= dev->kc_last)
+ return k;
+ }
+ }
+ 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_evdev_get_key_name(int keycode)
-{
- const char *name = NULL;
- if (keycode >= 0 && keycode <= KEY_MAX)
- name = in_evdev_keys[keycode];
- if (name == NULL)
- name = "Unkn";
-
- return name;
+ return 0;
}
static const struct {
short code;
- short bit;
+ char btype;
+ char bit;
} in_evdev_def_binds[] =
{
/* MXYZ SACB RLDU */
- { KEY_UP, 0 },
- { KEY_DOWN, 1 },
- { KEY_LEFT, 2 },
- { KEY_RIGHT, 3 },
- { KEY_S, 4 }, /* B */
- { BTN_B, 4 },
- { KEY_D, 5 }, /* C */
- { BTN_A, 5 },
- { KEY_A, 6 }, /* A */
- { BTN_Y, 6 },
- { KEY_ENTER, 7 },
- { BTN_START, 7 },
+ { KEY_UP, IN_BINDTYPE_PLAYER12, 0 },
+ { KEY_DOWN, IN_BINDTYPE_PLAYER12, 1 },
+ { KEY_LEFT, IN_BINDTYPE_PLAYER12, 2 },
+ { KEY_RIGHT, IN_BINDTYPE_PLAYER12, 3 },
+ { KEY_S, IN_BINDTYPE_PLAYER12, 4 }, /* B */
+ { KEY_D, IN_BINDTYPE_PLAYER12, 5 }, /* C */
+ { KEY_A, IN_BINDTYPE_PLAYER12, 6 }, /* A */
+ { KEY_ENTER, IN_BINDTYPE_PLAYER12, 7 },
+ { KEY_BACKSLASH, IN_BINDTYPE_EMU, PEVB_MENU },
+ /* Pandora */
+ { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, 4 },
+ { KEY_END, IN_BINDTYPE_PLAYER12, 5 },
+ { KEY_HOME, IN_BINDTYPE_PLAYER12, 6 },
+ { KEY_LEFTALT, IN_BINDTYPE_PLAYER12, 7 },
+ { KEY_RIGHTSHIFT,IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
+ { KEY_RIGHTCTRL, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
+ { KEY_LEFTCTRL, IN_BINDTYPE_EMU, PEVB_MENU },
+ /* Caanoo */
+ { BTN_THUMB, IN_BINDTYPE_PLAYER12, 4 }, /* B */
+ { BTN_THUMB2, IN_BINDTYPE_PLAYER12, 5 }, /* C */
+ { BTN_TRIGGER, IN_BINDTYPE_PLAYER12, 6 }, /* A */
+ { BTN_BASE3, IN_BINDTYPE_PLAYER12, 7 },
+ { BTN_TOP2, IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
+ { BTN_PINKIE, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
+ { BTN_BASE, IN_BINDTYPE_EMU, PEVB_MENU },
};
#define DEF_BIND_COUNT (sizeof(in_evdev_def_binds) / sizeof(in_evdev_def_binds[0]))
int i;
for (i = 0; i < DEF_BIND_COUNT; i++)
- binds[in_evdev_def_binds[i].code] = 1 << in_evdev_def_binds[i].bit;
+ binds[IN_BIND_OFFS(in_evdev_def_binds[i].code, in_evdev_def_binds[i].btype)] =
+ 1 << in_evdev_def_binds[i].bit;
}
/* remove binds of missing keys, count remaining ones */
-static int in_evdev_clean_binds(void *drv_data, int *binds)
+static int in_evdev_clean_binds(void *drv_data, int *binds, int *def_binds)
{
- int keybits[(KEY_MAX+1)/sizeof(int)];
+ int keybits[KEY_CNT / sizeof(int)];
in_evdev_t *dev = drv_data;
- int i, ret, count = 0;
+ int i, t, ret, offs, count = 0;
ret = ioctl(dev->fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
if (ret == -1) {
KEYBITS_BIT_SET(KEY_LEFT);
KEYBITS_BIT_SET(KEY_RIGHT);
}
- if (dev->abs_tzone != 0) {
+ if (dev->abs_lzone != 0) {
KEYBITS_BIT_SET(KEY_UP);
KEYBITS_BIT_SET(KEY_DOWN);
}
- for (i = 0; i < KEY_MAX + 1; i++) {
- if (!KEYBITS_BIT(i))
- binds[i] = binds[i + KEY_MAX + 1] = 0;
- if (binds[i])
- count++;
+ for (i = 0; i < KEY_CNT; i++) {
+ for (t = 0; t < IN_BINDTYPE_COUNT; t++) {
+ offs = IN_BIND_OFFS(i, t);
+ if (!KEYBITS_BIT(i))
+ binds[offs] = def_binds[offs] = 0;
+ if (binds[offs])
+ count++;
+ }
}
return count;
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->set_config = in_evdev_set_config;
drv->update_keycode = in_evdev_update_keycode;
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;
}
notaz.gp2x.de / libpicofe.git / blobdiff