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Got tablet to report button events.

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-
2020-10-04 10:44:54 -07:00
parent 90108aabdc
commit af84249d34
1 changed files with 38 additions and 23 deletions
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61
hanvon-libusb.c
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@ -124,31 +124,44 @@ void callback(struct libusb_transfer *transfer) {
void callback_gp0504 (struct libusb_transfer *tx) { // for callback void callback_gp0504 (struct libusb_transfer *tx) { // for callback
unsigned char *data = tx -> buffer; unsigned char *data = tx -> buffer;
unsigned short temp; unsigned short temp;
int err = 0;
struct libevdev_uinput *ud = tx -> user_data; struct libevdev_uinput *ud = tx -> user_data;
switch(data[0]) { switch(data[0]) {
case 0x01: case 0x01:
break; break;
case 0x02: case 0x02:
if((data[1] & 0xf0) != 0) { // pen touches surface
//absolute x err += libevdev_uinput_write_event(ud, EV_KEY, BTN_LEFT, data[6] > 68);
temp = data[2]; // data[1]:
temp <<= 8; // 0x10 = lift, 0x90 = close, 0x91 = press
temp += data[3]; // 0x12 = btn (lift), 0x92 = btn (close), 0x93 = btn (press)
libevdev_uinput_write_event(ud, EV_ABS, ABS_X, temp); err += libevdev_uinput_write_event(ud, EV_KEY, BTN_RIGHT, data[1] & 0x02);
//absolute y // if((data[1] & 0xf0) != 0) {
temp = data[4]; // //absolute x
temp <<= 8; // temp = data[2];
temp += data[5]; // temp <<= 8;
libevdev_uinput_write_event(ud, EV_ABS, ABS_Y, temp); // temp += data[3];
} // err += libevdev_uinput_write_event(ud, EV_ABS, ABS_X, temp);
break; // //absolute y
default: // temp = data[4];
// temp <<= 8;
// temp += data[5];
// err += libevdev_uinput_write_event(ud, EV_ABS, ABS_Y, temp);
// }
default:
display_packets(data); display_packets(data);
break; break;
} }
err += libevdev_uinput_write_event(ud, EV_SYN, SYN_REPORT, 0);
if (err != 0) {
printf("error : gp0504, %i\n", err);
}
return;
} }
// determine which callback devices to use and how to initialize libevdev // https://www.freedesktop.org/software/libevdev/doc/latest/group__kernel.html
int init_ctrl(struct libusb_device * const d, struct libevdev **evdev, struct libevdev_uinput **uidev) { int init_ctrl(struct libusb_device * const d, struct libevdev **evdev, struct libevdev_uinput **uidev) {
printf("init_ctrl: %x\n", uidev); printf("init_ctrl: %x\n", uidev);
int is_ok = 0; int is_ok = 0;
@ -158,19 +171,21 @@ int init_ctrl(struct libusb_device * const d, struct libevdev **evdev, struct li
struct libusb_device_descriptor desc; struct libusb_device_descriptor desc;
libusb_get_device_descriptor(d, &desc); libusb_get_device_descriptor(d, &desc);
(*evdev) = libevdev_new(); (*evdev) = libevdev_new();
libevdev_enable_event_type((*evdev), EV_SYN);
libevdev_enable_event_code((*evdev), EV_SYN, SYN_REPORT, NULL);
// every tablet has these features
libevdev_enable_event_type((*evdev), EV_KEY); // enable pen button
libevdev_enable_event_type((*evdev), EV_ABS); // enable absolute position
libevdev_enable_event_code((*evdev), EV_KEY, BTN_LEFT, NULL); // pen tap
libevdev_enable_event_code((*evdev), EV_KEY, BTN_RIGHT, NULL); // pen button
switch(desc.idProduct) { switch(desc.idProduct) {
default: // every tablet has these features - allow fall through case PRODUCT_ID_GP0504:
libevdev_enable_event_type((*evdev), EV_ABS); // enable absolute position libevdev_set_name((*evdev), "Hanvon Graphicpal GP0504");
libevdev_enable_event_type((*evdev), EV_KEY); // enable pen button break;
libevdev_enable_event_code((*evdev), EV_KEY, BTN_LEFT, NULL); // pen tap
libevdev_enable_event_code((*evdev), EV_KEY, BTN_RIGHT, NULL); // pen button
case PRODUCT_ID_GP0906: case PRODUCT_ID_GP0906:
break; break;
case PRODUCT_ID_APPIV0906: case PRODUCT_ID_APPIV0906:
break; break;
case PRODUCT_ID_GP0504:
libevdev_set_name((*evdev), "Hanvon Graphicpal GP0504");
break;
} }
int err = libevdev_uinput_create_from_device((*evdev), LIBEVDEV_UINPUT_OPEN_MANAGED, uidev); int err = libevdev_uinput_create_from_device((*evdev), LIBEVDEV_UINPUT_OPEN_MANAGED, uidev);
printf("Initializing controls status: %x, \n", uidev); printf("Initializing controls status: %x, \n", uidev);