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-rw-r--r--frontend/linux/in_evdev.c629
1 files changed, 629 insertions, 0 deletions
diff --git a/frontend/linux/in_evdev.c b/frontend/linux/in_evdev.c
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index 0000000..0b73302
--- /dev/null
+++ b/frontend/linux/in_evdev.c
@@ -0,0 +1,629 @@
+/*
+ * (C) GraÅžvydas "notaz" Ignotas, 2008-2010
+ *
+ * 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.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <linux/input.h>
+#include <errno.h>
+
+#include "../common/input.h"
+#include "in_evdev.h"
+
+typedef struct {
+ int fd;
+ int *kbits;
+ int abs_min_x;
+ int abs_max_x;
+ int abs_min_y;
+ int abs_max_y;
+ int abs_lzone;
+ 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_CNT] = {
+ [0 ... KEY_MAX] = NULL,
+ [KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc",
+ [KEY_1] = "1", [KEY_2] = "2",
+ [KEY_3] = "3", [KEY_4] = "4",
+ [KEY_5] = "5", [KEY_6] = "6",
+ [KEY_7] = "7", [KEY_8] = "8",
+ [KEY_9] = "9", [KEY_0] = "0",
+ [KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal",
+ [KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab",
+ [KEY_Q] = "Q", [KEY_W] = "W",
+ [KEY_E] = "E", [KEY_R] = "R",
+ [KEY_T] = "T", [KEY_Y] = "Y",
+ [KEY_U] = "U", [KEY_I] = "I",
+ [KEY_O] = "O", [KEY_P] = "P",
+ [KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace",
+ [KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl",
+ [KEY_A] = "A", [KEY_S] = "S",
+ [KEY_D] = "D", [KEY_F] = "F",
+ [KEY_G] = "G", [KEY_H] = "H",
+ [KEY_J] = "J", [KEY_K] = "K",
+ [KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon",
+ [KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave",
+ [KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash",
+ [KEY_Z] = "Z", [KEY_X] = "X",
+ [KEY_C] = "C", [KEY_V] = "V",
+ [KEY_B] = "B", [KEY_N] = "N",
+ [KEY_M] = "M", [KEY_COMMA] = "Comma",
+ [KEY_DOT] = "Dot", [KEY_SLASH] = "Slash",
+ [KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk",
+ [KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space",
+ [KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1",
+ [KEY_F2] = "F2", [KEY_F3] = "F3",
+ [KEY_F4] = "F4", [KEY_F5] = "F5",
+ [KEY_F6] = "F6", [KEY_F7] = "F7",
+ [KEY_F8] = "F8", [KEY_F9] = "F9",
+ [KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock",
+ [KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7",
+ [KEY_KP8] = "KP8", [KEY_KP9] = "KP9",
+ [KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4",
+ [KEY_KP5] = "KP5", [KEY_KP6] = "KP6",
+ [KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1",
+ [KEY_KP2] = "KP2", [KEY_KP3] = "KP3",
+ [KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot",
+ [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
+ [KEY_F11] = "F11", [KEY_F12] = "F12",
+ [KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter",
+ [KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash",
+ [KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt",
+ [KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home",
+ [KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp",
+ [KEY_LEFT] = "Left", [KEY_RIGHT] = "Right",
+ [KEY_END] = "End", [KEY_DOWN] = "Down",
+ [KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert",
+ [KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro",
+ [KEY_HELP] = "Help", [KEY_MENU] = "Menu",
+ [KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction",
+ [BTN_0] = "Btn0", [BTN_1] = "Btn1",
+ [BTN_2] = "Btn2", [BTN_3] = "Btn3",
+ [BTN_4] = "Btn4", [BTN_5] = "Btn5",
+ [BTN_6] = "Btn6", [BTN_7] = "Btn7",
+ [BTN_8] = "Btn8", [BTN_9] = "Btn9",
+ [BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn",
+ [BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn",
+ [BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn",
+ [BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn",
+ [BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn",
+ [BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn",
+ [BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn",
+ [BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2",
+ [BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4",
+ [BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6",
+ [BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA",
+ [BTN_B] = "BtnB", [BTN_C] = "BtnC",
+ [BTN_X] = "BtnX", [BTN_Y] = "BtnY",
+ [BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL",
+ [BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2",
+ [BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect",
+ [BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode",
+ [BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR",
+ [BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus",
+ [BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "Tool Doubletap",
+ [BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn",
+ [BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok",
+};
+
+
+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 support = 0, count = 0;
+ int u, ret, fd, kc_first, kc_last;
+ in_evdev_t *dev;
+ char name[64];
+
+ snprintf(name, sizeof(name), "/dev/input/event%d", i);
+ fd = open(name, O_RDONLY|O_NONBLOCK);
+ 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);
+ if (ret == -1) {
+ printf("in_evdev: ioctl failed on %s\n", name);
+ goto skip;
+ }
+
+ if (!(support & (1 << EV_KEY)))
+ goto skip;
+
+ ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
+ if (ret == -1) {
+ printf("in_evdev: ioctl failed on %s\n", name);
+ goto skip;
+ }
+
+ /* check for interesting keys */
+ 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)
+ goto skip;
+
+ dev = calloc(1, sizeof(*dev));
+ 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;
+ int dist;
+ ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits);
+ if (ret == -1)
+ goto no_abs;
+ if (absbits[0] & (1 << ABS_X)) {
+ ret = ioctl(fd, EVIOCGABS(ABS_X), &ainfo);
+ if (ret == -1)
+ goto no_abs;
+ dist = ainfo.maximum - ainfo.minimum;
+ 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_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, KEY_CNT, in_evdev_keys, 0);
+ continue;
+
+skip:
+ close(fd);
+ }
+}
+
+static void in_evdev_free(void *drv_data)
+{
+ in_evdev_t *dev = drv_data;
+ if (dev == NULL)
+ return;
+ close(dev->fd);
+ free(dev);
+}
+
+static int in_evdev_get_bind_count(void)
+{
+ return KEY_CNT;
+}
+
+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_CNT / sizeof(int)];
+ int *keybits = keybits_;
+ in_evdev_t *dev = drv_data;
+ int rd, ret, u, lzone;
+
+ if (dev->kbits == NULL) {
+ ret = ioctl(dev->fd, EVIOCGKEY(sizeof(keybits_)), keybits_);
+ if (ret == -1) {
+ perror("in_evdev: ioctl failed");
+ return -1;
+ }
+ }
+ 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 = dev->kc_first; u <= dev->kc_last; u++) {
+ if (KEYBITS_BIT(u))
+ or_binds(binds, u, result);
+ }
+
+ /* map X and Y absolute to UDLR */
+ lzone = dev->abs_lzone;
+ if (lzone != 0) {
+ ret = ioctl(dev->fd, EVIOCGABS(ABS_X), &ainfo);
+ if (ret != -1) {
+ 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 (lzone != 0) {
+ ret = ioctl(dev->fd, EVIOCGABS(ABS_Y), &ainfo);
+ if (ret != -1) {
+ 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);
+ }
+ }
+
+ return 0;
+}
+
+static int in_evdev_set_blocking(in_evdev_t *dev, int y)
+{
+ long flags;
+ int ret;
+
+ flags = (long)fcntl(dev->fd, F_GETFL);
+ if ((int)flags == -1) {
+ perror("in_evdev: F_GETFL fcntl failed");
+ 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) {
+ 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;
+
+ while (1)
+ {
+ rd = read(dev->fd, &ev, sizeof(ev));
+ if (rd < (int) sizeof(ev)) {
+ if (errno != EAGAIN) {
+ perror("in_evdev: error reading");
+ sleep(1);
+ }
+ goto out;
+ }
+
+ if (ev.type == EV_KEY) {
+ if (ev.value < 0 || ev.value > 1)
+ continue;
+ ret_kc = ev.code;
+ ret_down = ev.value;
+ goto out;
+ }
+ else if (ev.type == EV_ABS)
+ {
+ 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;
+ }
+ 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
+ continue;
+
+ if (down == *last)
+ continue;
+
+ 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;
+ }
+ }
+
+out:
+ if (is_down != NULL)
+ *is_down = ret_down;
+
+ return ret_kc;
+}
+
+static const struct {
+ short key;
+ short pbtn;
+} key_pbtn_map[] =
+{
+ { 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_menu_translate(void *drv_data, int keycode)
+{
+ in_evdev_t *dev = drv_data;
+ 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) {
+ 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 0;
+}
+
+/* FIXME: move to plat */
+#if 0
+static const struct {
+ short code;
+ char btype;
+ char bit;
+} in_evdev_def_binds[] =
+{
+ /* MXYZ SACB RLDU */
+ { 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 },
+};
+#endif
+
+static void in_evdev_get_def_binds(int *binds)
+{
+ int i;
+
+ for (i = 0; in_evdev_defbinds[i].bit != 0; i++) {
+ binds[IN_BIND_OFFS(in_evdev_defbinds[i].code, in_evdev_defbinds[i].btype)] =
+ 1 << in_evdev_defbinds[i].bit;
+ }
+}
+
+/* remove binds of missing keys, count remaining ones */
+static int in_evdev_clean_binds(void *drv_data, int *binds, int *def_binds)
+{
+ int keybits[KEY_CNT / sizeof(int)];
+ in_evdev_t *dev = drv_data;
+ int i, t, ret, offs, count = 0;
+
+ ret = ioctl(dev->fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
+ if (ret == -1) {
+ perror("in_evdev: ioctl failed");
+ memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */
+ }
+
+ if (dev->abs_lzone != 0) {
+ KEYBITS_BIT_SET(KEY_LEFT);
+ KEYBITS_BIT_SET(KEY_RIGHT);
+ }
+ if (dev->abs_lzone != 0) {
+ KEYBITS_BIT_SET(KEY_UP);
+ KEYBITS_BIT_SET(KEY_DOWN);
+ }
+
+ 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;
+}
+
+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_config = in_evdev_set_config;
+ drv->update_keycode = in_evdev_update_keycode;
+ drv->menu_translate = in_evdev_menu_translate;
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 12:31:38 +0000