RetroArch/input/include/wiiu/hid.h
2018-05-02 22:37:34 -07:00

134 lines
4.5 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2013-2014 - Jason Fetters
* Copyright (C) 2011-2017 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __WIIU_HID__H
#define __WIIU_HID__H
#include "hid_types.h"
#include "input.h"
#include "../../common/hid/hid_device_driver.h"
#define DEVICE_UNUSED 0
#define DEVICE_USED 1
/* Adapter has been detected and needs to be initialized */
#define ADAPTER_STATE_NEW 0
/* Adapter has been initialized successfully */
#define ADAPTER_STATE_READY 1
/* The read loop has been started */
#define ADAPTER_STATE_READING 2
/* The read loop is shutting down */
#define ADAPTER_STATE_DONE 3
/* The read loop has fully stopped and the adapter can be freed */
#define ADAPTER_STATE_GC 4
struct wiiu_hid {
/* used to register for HID notifications */
HIDClient *client;
/* thread state data for the HID input polling thread */
OSThread *polling_thread;
/* stack space for polling thread */
void *polling_thread_stack;
/* watch variable for telling the polling thread to terminate */
volatile bool polling_thread_quit;
};
/**
* Each HID device attached to the WiiU gets its own adapter, which
* connects the HID subsystem with the HID device driver.
*/
struct wiiu_adapter {
wiiu_adapter_t *next;
hid_device_t *driver;
void *driver_handle;
wiiu_hid_t *hid;
uint8_t state;
uint8_t *rx_buffer;
int32_t rx_size;
uint8_t *tx_buffer;
int32_t tx_size;
uint32_t handle;
uint8_t interface_index;
bool connected;
};
/**
* When a HID device is connected, the OS generates an attach
* event; the attach event handler translate them into these
* structures.
*/
struct wiiu_attach {
wiiu_attach_event *next;
hid_device_t *driver;
uint32_t type;
uint32_t handle;
uint16_t vendor_id;
uint16_t product_id;
uint8_t interface_index;
uint8_t is_keyboard;
uint8_t is_mouse;
uint16_t max_packet_size_rx;
uint16_t max_packet_size_tx;
};
struct _wiiu_event_list {
OSFastMutex lock;
wiiu_attach_event *list;
};
struct _wiiu_adapter_list {
OSFastMutex lock;
wiiu_adapter_t *list;
};
extern wiiu_pad_functions_t pad_functions;
extern input_device_driver_t wiiu_joypad;
extern input_device_driver_t wpad_driver;
extern input_device_driver_t kpad_driver;
extern input_device_driver_t hidpad_driver;
extern hid_driver_t wiiu_hid;
static void *alloc_zeroed(size_t alignment, size_t size);
static OSThread *new_thread(void);
static wiiu_hid_t *new_hid(void);
static void delete_hid(wiiu_hid_t *hid);
static void delete_hidclient(HIDClient *client);
static HIDClient *new_hidclient(void);
static wiiu_adapter_t *new_adapter(wiiu_attach_event *event);
static void delete_adapter(wiiu_adapter_t *adapter);
static wiiu_attach_event *new_attach_event(HIDDevice *device);
static void delete_attach_event(wiiu_attach_event *);
static void wiiu_hid_init_lists(void);
static void start_polling_thread(wiiu_hid_t *hid);
static void stop_polling_thread(wiiu_hid_t *hid);
static int wiiu_hid_polling_thread(int argc, const char **argv);
static int32_t wiiu_attach_callback(HIDClient *client, HIDDevice *device, uint32_t attach);
static wiiu_attach_event *synchronized_get_events_list(void);
static void wiiu_handle_attach_events(wiiu_hid_t *hid, wiiu_attach_event *list);
static void wiiu_hid_attach(wiiu_hid_t *hid, wiiu_attach_event *event);
static void wiiu_hid_detach(wiiu_hid_t *hid, wiiu_attach_event *event);
static void synchronized_process_adapters(wiiu_hid_t *hid);
static void synchronized_add_to_adapters_list(wiiu_adapter_t *adapter);
static wiiu_adapter_t *synchronized_remove_from_adapters_list(uint32_t handle);
static void synchronized_add_event(wiiu_attach_event *event);
static void wiiu_start_read_loop(wiiu_adapter_t *adapter);
static void wiiu_hid_read_loop_callback(uint32_t handle, int32_t error,
uint8_t *buffer, uint32_t buffer_size, void *userdata);
static void wiiu_hid_polling_thread_cleanup(OSThread *thread, void *stack);
#endif /* __WIIU_HID__H */