usb_device_detection: Added support for detecting basestation un/plugs
This commit is contained in:
parent
ce96e70e66
commit
4fd8bf9bb8
4 changed files with 142 additions and 3 deletions
4
build.sh
4
build.sh
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@ -2,9 +2,9 @@
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set -ex;
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set -ex;
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SOURCES="main.c output_manager.c accel_monitor.c"
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SOURCES="main.c output_manager.c accel_monitor.c usb_device_detection.c"
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CFLAGS="-std=c2x -Wall -Wextra -pedantic $CFLAGS"
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CFLAGS="-std=c2x -Wall -Wextra -pedantic $CFLAGS"
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LIBS="-lwayland-client protocol/wlr-output-management-unstable-v1.c"
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LIBS="-lwayland-client -lusb-1.0 protocol/wlr-output-management-unstable-v1.c"
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OUTPUT=miix-wlr
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OUTPUT=miix-wlr
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clang $CFLAGS $LIBS $SOURCES -o $OUTPUT
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clang $CFLAGS $LIBS $SOURCES -o $OUTPUT
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22
main.c
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main.c
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@ -1,9 +1,11 @@
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#include <stdio.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include "output_manager.h"
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#include <libusb-1.0/libusb.h>
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#include "accel_monitor.h"
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#include "accel_monitor.h"
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#include "output_manager.h"
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#include "usb_device_detection.h"
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static enum wl_output_transform const SENSOR_TO_OUTPUT_ROTATION[] = {
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static enum wl_output_transform const SENSOR_TO_OUTPUT_ROTATION[] = {
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[ACCEL_ROTATION_0DEG] = WL_OUTPUT_TRANSFORM_270,
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[ACCEL_ROTATION_0DEG] = WL_OUTPUT_TRANSFORM_270,
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@ -16,6 +18,9 @@ static char const* const DEFAULT_OUTPUT = "DSI-1";
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static char const* const DEFAULT_MOTION_SENSOR =
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static char const* const DEFAULT_MOTION_SENSOR =
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"/sys/bus/iio/devices/iio:device0";
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"/sys/bus/iio/devices/iio:device0";
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static uint16_t const BASESTATION_VENDOR_ID = 0x048d;
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static uint16_t const BASESTATION_PRODUCT_ID = 0x8911;
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static enum accel_rotation last_accel_rotation = ACCEL_ROTATION_NO_CHANGE;
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static enum accel_rotation last_accel_rotation = ACCEL_ROTATION_NO_CHANGE;
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int main(int, char**)
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int main(int, char**)
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@ -27,11 +32,25 @@ int main(int, char**)
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return -1;
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return -1;
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}
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}
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struct usb_detector* base_station_detector =
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create_detector(BASESTATION_VENDOR_ID, BASESTATION_PRODUCT_ID);
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struct miix_wlr_state* state = miix_wlr_init();
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struct miix_wlr_state* state = miix_wlr_init();
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for (;;) {
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for (;;) {
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if (!monitor->data_is_ready) continue;
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if (!monitor->data_is_ready) continue;
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if (base_station_detector && base_station_detector->is_connected) {
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if (last_accel_rotation != ACCEL_ROTATION_0DEG) {
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miix_wlr_head_set_transform(
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state,
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DEFAULT_OUTPUT,
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SENSOR_TO_OUTPUT_ROTATION[ACCEL_ROTATION_0DEG]);
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last_accel_rotation = ACCEL_ROTATION_0DEG;
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}
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continue;
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}
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enum accel_rotation rotation = accel_get_current_rotation(monitor);
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enum accel_rotation rotation = accel_get_current_rotation(monitor);
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if (rotation == ACCEL_ROTATION_NO_CHANGE ||
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if (rotation == ACCEL_ROTATION_NO_CHANGE ||
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rotation == last_accel_rotation)
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rotation == last_accel_rotation)
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@ -42,5 +61,6 @@ int main(int, char**)
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}
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}
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accel_stop_monitor(monitor);
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accel_stop_monitor(monitor);
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destroy_detector(base_station_detector);
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miix_wlr_cleanup(state);
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miix_wlr_cleanup(state);
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}
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}
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99
usb_device_detection.c
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99
usb_device_detection.c
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@ -0,0 +1,99 @@
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#include "usb_device_detection.h"
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#include <stdio.h>
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#include <stdlib.h>
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int hotplug_callback(struct libusb_context*,
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struct libusb_device*,
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libusb_hotplug_event event,
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void* user_data)
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{
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struct usb_detector* detector = user_data;
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if (event == LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED)
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detector->is_connected = true;
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else if (event == LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT)
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detector->is_connected = false;
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else
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printf("Unexpected USB device event %d\n", event);
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return 0;
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}
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static int libusb_event_handler(void* data)
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{
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struct usb_detector* detector = data;
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while (!detector->event_handler_should_exit) {
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thrd_sleep(&(struct timespec){.tv_sec = 1}, NULL);
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libusb_handle_events(detector->usb_context);
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}
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return 0;
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}
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struct usb_detector* create_detector(uint16_t vendor_id, uint16_t product_id)
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{
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struct libusb_context* usb_context;
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libusb_init(&usb_context);
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if (!usb_context) {
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fprintf(stderr,
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"Couldn't get USB contexxt. Device detection will not work\n");
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return 0;
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}
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struct usb_detector* detector = calloc(1, sizeof(struct usb_detector));
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detector->usb_context = usb_context;
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if (libusb_hotplug_register_callback(detector->usb_context,
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LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED |
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LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT,
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LIBUSB_HOTPLUG_ENUMERATE,
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vendor_id,
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product_id,
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LIBUSB_HOTPLUG_MATCH_ANY,
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hotplug_callback,
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detector,
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&detector->hotplug_handle) !=
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LIBUSB_SUCCESS) {
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fprintf(stderr,
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"Couldn't register usb hotplug listener. Device detection "
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"will not work.\n");
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free(detector);
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return 0;
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}
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detector->is_connected = false;
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detector->event_handler_should_exit = false;
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if (thrd_create(&detector->event_handler_thread,
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&libusb_event_handler,
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detector) != thrd_success) {
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fprintf(stderr,
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"Couldn't start event handler. Device detection will not "
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"work.\n");
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free(detector);
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return 0;
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}
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return detector;
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}
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void destroy_detector(struct usb_detector* detector)
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{
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libusb_hotplug_deregister_callback(detector->usb_context,
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detector->hotplug_handle);
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detector->event_handler_should_exit = true;
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if (thrd_join(detector->event_handler_thread, 0) != thrd_success)
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fprintf(stderr,
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"Couldn't join with usb event handler thread, something went "
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"really wrong, we likely won't exit cleanly\n");
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libusb_exit(detector->usb_context);
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free(detector);
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}
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20
usb_device_detection.h
Normal file
20
usb_device_detection.h
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#pragma once
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#include <stdatomic.h>
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#include <stdint.h>
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#include <threads.h>
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#include <libusb-1.0/libusb.h>
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struct usb_detector {
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atomic_bool is_connected;
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atomic_bool event_handler_should_exit;
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thrd_t event_handler_thread;
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struct libusb_context* usb_context;
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libusb_hotplug_callback_handle hotplug_handle;
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};
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struct usb_detector* create_detector(uint16_t vendor_id, uint16_t product_id);
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void destroy_detector(struct usb_detector*);
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