linux/drivers/hid/intel-ish-hid/ishtp-hid.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * ISHTP-HID glue driver.
 *
 * Copyright (c) 2012-2016, Intel Corporation.
 */

#include <linux/hid.h>
#include <linux/intel-ish-client-if.h>
#include <uapi/linux/input.h>
#include "ishtp-hid.h"

/**
 * ishtp_hid_parse() - hid-core .parse() callback
 * @hid:	hid device instance
 *
 * This function gets called during call to hid_add_device
 *
 * Return: 0 on success and non zero on error
 */
static int ishtp_hid_parse(struct hid_device *hid)
{ … }

/* Empty callbacks with success return code */
static int ishtp_hid_start(struct hid_device *hid)
{ … }

static void ishtp_hid_stop(struct hid_device *hid)
{ … }

static int ishtp_hid_open(struct hid_device *hid)
{ … }

static void ishtp_hid_close(struct hid_device *hid)
{ … }

static int ishtp_raw_request(struct hid_device *hid, unsigned char reportnum,
			     __u8 *buf, size_t len, unsigned char rtype,
			     int reqtype)
{ … }

/**
 * ishtp_hid_request() - hid-core .request() callback
 * @hid:	hid device instance
 * @rep:	pointer to hid_report
 * @reqtype:	type of req. [GET|SET]_REPORT
 *
 * This function is used to set/get feaure/input report.
 */
static void ishtp_hid_request(struct hid_device *hid, struct hid_report *rep,
	int reqtype)
{ … }

/**
 * ishtp_wait_for_response() - hid-core .wait() callback
 * @hid:	hid device instance
 *
 * This function is used to wait after get feaure/input report.
 *
 * Return: 0 on success and non zero on error
 */
static int ishtp_wait_for_response(struct hid_device *hid)
{ … }

/**
 * ishtp_hid_wakeup() - Wakeup caller
 * @hid:	hid device instance
 *
 * This function will wakeup caller waiting for Get/Set feature report
 */
void ishtp_hid_wakeup(struct hid_device *hid)
{ … }

static const struct hid_ll_driver ishtp_hid_ll_driver = …;

/**
 * ishtp_hid_probe() - hid register ll driver
 * @cur_hid_dev:	Index of hid device calling to register
 * @client_data:	Client data pointer
 *
 * This function is used to allocate and add HID device.
 *
 * Return: 0 on success, non zero on error
 */
int ishtp_hid_probe(unsigned int cur_hid_dev,
		    struct ishtp_cl_data *client_data)
{ … }

/**
 * ishtp_hid_remove() - Remove registered hid device
 * @client_data:	client data pointer
 *
 * This function is used to destroy allocatd HID device.
 */
void ishtp_hid_remove(struct ishtp_cl_data *client_data)
{ … }