diff options
Diffstat (limited to 'frontend/linux/in_evdev.c')
| -rw-r--r-- | frontend/linux/in_evdev.c | 655 |
1 files changed, 0 insertions, 655 deletions
diff --git a/frontend/linux/in_evdev.c b/frontend/linux/in_evdev.c deleted file mode 100644 index b447da1..0000000 --- a/frontend/linux/in_evdev.c +++ /dev/null @@ -1,655 +0,0 @@ -/* - * (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" - -#define MAX_ABS_DEVS 8 - -typedef struct { - int fd; - int *kbits; - int abs_min_x; /* abs->digital mapping */ - 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; - unsigned int abs_count; - int abs_mult[MAX_ABS_DEVS]; /* 16.16 multiplier to IN_ABS_RANGE */ - int abs_adj[MAX_ABS_DEVS]; /* adjust for centering */ - unsigned int abs_to_digital:1; -} 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)))) - -int in_evdev_allow_abs_only; - -#define 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 = KEY_MAX, kc_last = 0, have_abs = 0; - 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)) { - 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 */ - 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 (u == BTN_TOUCH) /* we can't deal with ts currently */ - 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; - } - for (u = 0; u < MAX_ABS_DEVS; u++) { - ret = ioctl(fd, EVIOCGABS(u), &ainfo); - if (ret == -1) - break; - dist = ainfo.maximum - ainfo.minimum; - if (dist != 0) - dev->abs_mult[u] = IN_ABS_RANGE * 2 * 65536 / dist; - dev->abs_adj[u] = -(ainfo.maximum + ainfo.minimum + 1) / 2; - have_abs = 1; - } - dev->abs_count = u; - } - -no_abs: - if (count == 0 && !have_abs) { - free(dev); - goto skip; - } - - dev->fd = fd; - dev->kc_first = kc_first; - dev->kc_last = kc_last; - if (count > 0 || in_evdev_allow_abs_only) - dev->abs_to_digital = 1; - 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, 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 const char * const * -in_evdev_get_key_names(int *count) -{ - *count = KEY_CNT; - return in_evdev_keys; -} - -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 */ -static 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 (dev->abs_to_digital && 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); - } - 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_update_analog(void *drv_data, int axis_id, int *result) -{ - struct input_absinfo ainfo; - in_evdev_t *dev = drv_data; - int ret; - - if ((unsigned int)axis_id >= MAX_ABS_DEVS) - return -1; - - ret = ioctl(dev->fd, EVIOCGABS(axis_id), &ainfo); - if (ret != 0) - return ret; - - *result = (ainfo.value + dev->abs_adj[axis_id]) * dev->abs_mult[axis_id]; - *result >>= 16; - 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_get_config(void *drv_data, int what, int *val) -{ - in_evdev_t *dev = drv_data; - - switch (what) { - case IN_CFG_ABS_AXIS_COUNT: - *val = dev->abs_count; - break; - default: - 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; - - /* do single event, the caller sometimes wants - * to do select() in blocking mode */ - rd = read(dev->fd, &ev, sizeof(ev)); - if (rd < (int) sizeof(ev)) { - if (errno != EAGAIN) { - perror("in_evdev: error reading"); - //sleep(1); - ret_kc = -2; - } - goto out; - } - - if (ev.type == EV_KEY) { - if (ev.value < 0 || ev.value > 1) - goto out; - ret_kc = ev.code; - ret_down = ev.value; - goto out; - } - else if (ev.type == EV_ABS && dev->abs_to_digital) - { - 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 - 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; - } - -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, char *charcode) -{ - in_evdev_t *dev = drv_data; - int ret = 0; - 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) { - ret = key_pbtn_map[i].pbtn; - break; - } - } - - if (charcode != NULL && (unsigned int)keycode < KEY_CNT && - in_evdev_keys[keycode] != NULL && in_evdev_keys[keycode][1] == 0) - { - char c = in_evdev_keys[keycode][0]; - if ('A' <= c && c <= 'Z') - c = 'a' + c - 'A'; - ret |= PBTN_CHAR; - *charcode = c; - } - } - - return ret; -} - -/* 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; - - memset(keybits, 0, sizeof(keybits)); - 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_to_digital && dev->abs_lzone != 0) { - KEYBITS_BIT_SET(KEY_LEFT); - KEYBITS_BIT_SET(KEY_RIGHT); - 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; -} - -static const in_drv_t in_evdev_drv = { - .prefix = IN_EVDEV_PREFIX, - .probe = in_evdev_probe, - .free = in_evdev_free, - .get_key_names = in_evdev_get_key_names, - .clean_binds = in_evdev_clean_binds, - .get_config = in_evdev_get_config, - .set_config = in_evdev_set_config, - .update = in_evdev_update, - .update_analog = in_evdev_update_analog, - .update_keycode = in_evdev_update_keycode, - .menu_translate = in_evdev_menu_translate, -}; - -void in_evdev_init(const struct in_default_bind *defbinds) -{ - in_register_driver(&in_evdev_drv, defbinds); -} - |