mirror of
https://github.com/RaySollium99/picodrive.git
synced 2025-09-05 15:27:46 -04:00
f484a9fe4f
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@627 be3aeb3a-fb24-0410-a615-afba39da0efa
390 lines
9.9 KiB
C
390 lines
9.9 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <linux/input.h>
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#include <errno.h>
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#include "../common/common.h"
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#include "../common/input.h"
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#include "in_evdev.h"
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#define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
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(1 << ((x) & (sizeof(keybits[0])*8-1))))
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static const char * const in_evdev_prefix = "evdev:";
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static const char * const in_evdev_keys[KEY_MAX + 1] = {
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[0 ... KEY_MAX] = NULL,
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[KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc",
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[KEY_1] = "1", [KEY_2] = "2",
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[KEY_3] = "3", [KEY_4] = "4",
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[KEY_5] = "5", [KEY_6] = "6",
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[KEY_7] = "7", [KEY_8] = "8",
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[KEY_9] = "9", [KEY_0] = "0",
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[KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal",
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[KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab",
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[KEY_Q] = "Q", [KEY_W] = "W",
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[KEY_E] = "E", [KEY_R] = "R",
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[KEY_T] = "T", [KEY_Y] = "Y",
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[KEY_U] = "U", [KEY_I] = "I",
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[KEY_O] = "O", [KEY_P] = "P",
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[KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace",
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[KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl",
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[KEY_A] = "A", [KEY_S] = "S",
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[KEY_D] = "D", [KEY_F] = "F",
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[KEY_G] = "G", [KEY_H] = "H",
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[KEY_J] = "J", [KEY_K] = "K",
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[KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon",
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[KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave",
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[KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash",
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[KEY_Z] = "Z", [KEY_X] = "X",
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[KEY_C] = "C", [KEY_V] = "V",
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[KEY_B] = "B", [KEY_N] = "N",
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[KEY_M] = "M", [KEY_COMMA] = "Comma",
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[KEY_DOT] = "Dot", [KEY_SLASH] = "Slash",
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[KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk",
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[KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space",
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[KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1",
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[KEY_F2] = "F2", [KEY_F3] = "F3",
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[KEY_F4] = "F4", [KEY_F5] = "F5",
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[KEY_F6] = "F6", [KEY_F7] = "F7",
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[KEY_F8] = "F8", [KEY_F9] = "F9",
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[KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock",
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[KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7",
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[KEY_KP8] = "KP8", [KEY_KP9] = "KP9",
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[KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4",
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[KEY_KP5] = "KP5", [KEY_KP6] = "KP6",
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[KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1",
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[KEY_KP2] = "KP2", [KEY_KP3] = "KP3",
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[KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot",
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[KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
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[KEY_F11] = "F11", [KEY_F12] = "F12",
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[KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter",
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[KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash",
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[KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt",
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[KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home",
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[KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp",
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[KEY_LEFT] = "Left", [KEY_RIGHT] = "Right",
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[KEY_END] = "End", [KEY_DOWN] = "Down",
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[KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert",
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[KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro",
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[KEY_HELP] = "Help", [KEY_MENU] = "Menu",
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[KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction",
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[BTN_0] = "Btn0", [BTN_1] = "Btn1",
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[BTN_2] = "Btn2", [BTN_3] = "Btn3",
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[BTN_4] = "Btn4", [BTN_5] = "Btn5",
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[BTN_6] = "Btn6", [BTN_7] = "Btn7",
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[BTN_8] = "Btn8", [BTN_9] = "Btn9",
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[BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn",
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[BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn",
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[BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn",
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[BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn",
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[BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn",
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[BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn",
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[BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn",
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[BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2",
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[BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4",
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[BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6",
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[BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA",
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[BTN_B] = "BtnB", [BTN_C] = "BtnC",
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[BTN_X] = "BtnX", [BTN_Y] = "BtnY",
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[BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL",
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[BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2",
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[BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect",
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[BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode",
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[BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR",
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[BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus",
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[BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "Tool Doubletap",
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[BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn",
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[BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok",
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};
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static void in_evdev_probe(void)
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{
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int i;
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for (i = 0;; i++)
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{
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int u, ret, fd, keybits[(KEY_MAX+1)/sizeof(int)];
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int support = 0, count = 0;
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char name[64];
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snprintf(name, sizeof(name), "/dev/input/event%d", i);
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fd = open(name, O_RDONLY|O_NONBLOCK);
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if (fd == -1)
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break;
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/* check supported events */
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ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support);
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if (ret == -1) {
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printf("in_evdev: ioctl failed on %s\n", name);
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goto skip;
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}
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if (!(support & (1 << EV_KEY)))
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goto skip;
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ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
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if (ret == -1) {
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printf("in_evdev: ioctl failed on %s\n", name);
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goto skip;
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}
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/* check for interesting keys */
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for (u = 0; u < KEY_MAX + 1; u++) {
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if (KEYBITS_BIT(u) && u != KEY_POWER && u != KEY_SLEEP)
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count++;
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}
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if (count == 0)
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goto skip;
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strcpy(name, in_evdev_prefix);
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ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6);
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printf("in_evdev: found \"%s\" with %d events (type %08x)\n",
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name+6, count, support);
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in_register(name, IN_DRVID_EVDEV, (void *)fd);
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continue;
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skip:
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close(fd);
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}
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}
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static void in_evdev_free(void *drv_data)
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{
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close((int)drv_data);
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}
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static int in_evdev_get_bind_count(void)
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{
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return KEY_MAX + 1;
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}
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/* returns bitfield of active binds or -1 if nothing
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* changed from previous time */
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int in_evdev_update(void *drv_data, int *binds)
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{
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struct input_event ev[16];
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int keybits[(KEY_MAX+1)/sizeof(int)];
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int fd = (int)drv_data;
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int result = 0, changed = 0;
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int rd, ret, u;
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while (1) {
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rd = read(fd, ev, sizeof(ev));
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if (rd < (int)sizeof(ev[0])) {
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if (errno != EAGAIN)
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perror("in_evdev: read failed");
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break;
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}
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changed = 1;
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}
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if (!changed)
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return -1;
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ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits);
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if (ret == -1) {
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perror("in_evdev: ioctl failed");
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return 0;
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}
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for (u = 0; u < KEY_MAX + 1; u++) {
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if (KEYBITS_BIT(u)) {
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result |= binds[u];
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}
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}
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return result;
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}
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static void in_evdev_set_blocking(void *data, int y)
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{
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long flags;
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int ret;
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flags = (long)fcntl((int)data, F_GETFL);
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if ((int)flags == -1) {
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perror("in_evdev: F_GETFL fcntl failed");
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return;
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}
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if (y)
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flags &= ~O_NONBLOCK;
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else
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flags |= O_NONBLOCK;
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ret = fcntl((int)data, F_SETFL, flags);
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if (ret == -1)
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perror("in_evdev: F_SETFL fcntl failed");
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}
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int in_evdev_update_keycode(void **data, int dcount, int *which, int *is_down, int timeout_ms)
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{
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const int *fds = (const int *)data;
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struct timeval tv, *timeout = NULL;
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int i, fdmax = -1;
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if (timeout_ms > 0) {
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tv.tv_sec = timeout_ms / 1000;
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tv.tv_usec = (timeout_ms % 1000) * 1000;
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timeout = &tv;
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}
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if (is_down != NULL)
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*is_down = 0;
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for (i = 0; i < dcount; i++)
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if (fds[i] > fdmax) fdmax = fds[i];
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while (1)
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{
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struct input_event ev[64];
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int ret, fd = -1, rd;
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fd_set fdset;
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FD_ZERO(&fdset);
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for (i = 0; i < dcount; i++)
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FD_SET(fds[i], &fdset);
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ret = select(fdmax + 1, &fdset, NULL, NULL, timeout);
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if (ret == -1)
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{
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perror("in_evdev: select failed");
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sleep(1);
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return 0;
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}
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if (ret == 0)
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return 0; /* timeout */
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for (i = 0; i < dcount; i++)
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if (FD_ISSET(fds[i], &fdset))
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*which = i, fd = fds[i];
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rd = read(fd, ev, sizeof(ev[0]) * 64);
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if (rd < (int) sizeof(ev[0])) {
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perror("in_evdev: error reading");
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sleep(1);
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return 0;
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}
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for (i = 0; i < rd / sizeof(ev[0]); i++)
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{
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if (ev[i].type != EV_KEY || ev[i].value < 0 || ev[i].value > 1)
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continue;
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if (is_down != NULL)
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*is_down = ev[i].value;
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return ev[i].code;
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}
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}
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}
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static int in_evdev_menu_translate(int keycode)
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{
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switch (keycode) {
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/* keyboards */
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case KEY_UP: return PBTN_UP;
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case KEY_DOWN: return PBTN_DOWN;
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case KEY_LEFT: return PBTN_LEFT;
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case KEY_RIGHT: return PBTN_RIGHT;
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case KEY_ENTER: return PBTN_EAST;
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case KEY_ESC: return PBTN_SOUTH;
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default: return 0;
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}
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}
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static int in_evdev_get_key_code(const char *key_name)
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{
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int i;
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for (i = 0; i < KEY_MAX + 1; i++) {
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const char *k = in_evdev_keys[i];
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if (k != NULL && k[0] == key_name[0] &&
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strcasecmp(k, key_name) == 0)
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return i;
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}
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return -1;
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}
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static const char *in_evdev_get_key_name(int keycode)
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{
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const char *name = NULL;
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if (keycode >= 0 && keycode <= KEY_MAX)
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name = in_evdev_keys[keycode];
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if (name == NULL)
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name = "Unkn";
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return name;
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}
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static const struct {
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short code;
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short bit;
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} in_evdev_def_binds[] =
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{
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/* MXYZ SACB RLDU */
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{ KEY_UP, 0 },
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{ KEY_DOWN, 1 },
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{ KEY_LEFT, 2 },
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{ KEY_RIGHT, 3 },
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{ KEY_S, 4 }, /* B */
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{ KEY_D, 5 }, /* C */
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{ KEY_A, 6 }, /* A */
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{ KEY_ENTER, 7 },
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};
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#define DEF_BIND_COUNT (sizeof(in_evdev_def_binds) / sizeof(in_evdev_def_binds[0]))
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static void in_evdev_get_def_binds(int *binds)
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{
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int i;
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for (i = 0; i < DEF_BIND_COUNT; i++)
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binds[in_evdev_def_binds[i].code] = 1 << in_evdev_def_binds[i].bit;
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}
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/* remove bad binds, count good ones */
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static int in_evdev_clean_binds(void *drv_data, int *binds)
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{
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int keybits[(KEY_MAX+1)/sizeof(int)];
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int i, ret, count = 0;
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ret = ioctl((int)drv_data, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
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if (ret == -1) {
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perror("in_evdev: ioctl failed");
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memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */
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}
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for (i = 0; i < KEY_MAX + 1; i++) {
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if (!KEYBITS_BIT(i))
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binds[i] = binds[i + KEY_MAX + 1] = 0;
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if (binds[i])
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count++;
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}
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return count;
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}
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void in_evdev_init(void *vdrv)
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{
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in_drv_t *drv = vdrv;
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drv->prefix = in_evdev_prefix;
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drv->probe = in_evdev_probe;
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drv->free = in_evdev_free;
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drv->get_bind_count = in_evdev_get_bind_count;
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drv->get_def_binds = in_evdev_get_def_binds;
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drv->clean_binds = in_evdev_clean_binds;
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drv->set_blocking = in_evdev_set_blocking;
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drv->menu_translate = in_evdev_menu_translate;
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drv->get_key_code = in_evdev_get_key_code;
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drv->get_key_name = in_evdev_get_key_name;
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}
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