cregit-Linux how code gets into the kernel

Release 4.10 drivers/hid/hid-sjoy.c

Directory: drivers/hid
/*
 *  Force feedback support for SmartJoy PLUS PS2->USB adapter
 *
 *  Copyright (c) 2009 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
 *
 *  Based of hid-pl.c and hid-gaff.c
 *   Copyright (c) 2007, 2009 Anssi Hannula <anssi.hannula@gmail.com>
 *   Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
 */

/*
 * This program 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 Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

/* #define DEBUG */

#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"

#ifdef CONFIG_SMARTJOYPLUS_FF


struct sjoyff_device {
	
struct hid_report *report;
};


static int hid_sjoyff_play(struct input_dev *dev, void *data, struct ff_effect *effect) { struct hid_device *hid = input_get_drvdata(dev); struct sjoyff_device *sjoyff = data; u32 left, right; left = effect->u.rumble.strong_magnitude; right = effect->u.rumble.weak_magnitude; dev_dbg(&dev->dev, "called with 0x%08x 0x%08x\n", left, right); left = left * 0xff / 0xffff; right = (right != 0); /* on/off only */ sjoyff->report->field[0]->value[1] = right; sjoyff->report->field[0]->value[2] = left; dev_dbg(&dev->dev, "running with 0x%02x 0x%02x\n", left, right); hid_hw_request(hid, sjoyff->report, HID_REQ_SET_REPORT); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
jussi kivilinnajussi kivilinna15198.69%150.00%
benjamin tissoiresbenjamin tissoires21.31%150.00%
Total153100.00%2100.00%


static int sjoyff_init(struct hid_device *hid) { struct sjoyff_device *sjoyff; struct hid_report *report; struct hid_input *hidinput; struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; struct list_head *report_ptr = report_list; struct input_dev *dev; int error; if (list_empty(report_list)) { hid_err(hid, "no output reports found\n"); return -ENODEV; } list_for_each_entry(hidinput, &hid->inputs, list) { report_ptr = report_ptr->next; if (report_ptr == report_list) { hid_err(hid, "required output report is missing\n"); return -ENODEV; } report = list_entry(report_ptr, struct hid_report, list); if (report->maxfield < 1) { hid_err(hid, "no fields in the report\n"); return -ENODEV; } if (report->field[0]->report_count < 3) { hid_err(hid, "not enough values in the field\n"); return -ENODEV; } sjoyff = kzalloc(sizeof(struct sjoyff_device), GFP_KERNEL); if (!sjoyff) return -ENOMEM; dev = hidinput->input; set_bit(FF_RUMBLE, dev->ffbit); error = input_ff_create_memless(dev, sjoyff, hid_sjoyff_play); if (error) { kfree(sjoyff); return error; } sjoyff->report = report; sjoyff->report->field[0]->value[0] = 0x01; sjoyff->report->field[0]->value[1] = 0x00; sjoyff->report->field[0]->value[2] = 0x00; hid_hw_request(hid, sjoyff->report, HID_REQ_SET_REPORT); } hid_info(hid, "Force feedback for SmartJoy PLUS PS2/USB adapter\n"); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
jussi kivilinnajussi kivilinna28994.14%125.00%
sean youngsean young103.26%125.00%
joe perchesjoe perches61.95%125.00%
benjamin tissoiresbenjamin tissoires20.65%125.00%
Total307100.00%4100.00%

#else
static inline int sjoyff_init(struct hid_device *hid) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
jussi kivilinnajussi kivilinna15100.00%1100.00%
Total15100.00%1100.00%

#endif
static int sjoy_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret; hdev->quirks |= id->driver_data; ret = hid_parse(hdev); if (ret) { hid_err(hdev, "parse failed\n"); goto err; } ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); if (ret) { hid_err(hdev, "hw start failed\n"); goto err; } sjoyff_init(hdev); return 0; err: return ret; }

Contributors

PersonTokensPropCommitsCommitProp
jussi kivilinnajussi kivilinna8289.13%133.33%
sean youngsean young88.70%133.33%
joe perchesjoe perches22.17%133.33%
Total92100.00%3100.00%

static const struct hid_device_id sjoy_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO), .driver_data = HID_QUIRK_NOGET }, { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO), .driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET | HID_QUIRK_SKIP_OUTPUT_REPORTS }, { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO), .driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET | HID_QUIRK_SKIP_OUTPUT_REPORTS }, { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) }, { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD), .driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS }, { HID_USB_DEVICE(USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII), .driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS }, { } }; MODULE_DEVICE_TABLE(hid, sjoy_devices); static struct hid_driver sjoy_driver = { .name = "smartjoyplus", .id_table = sjoy_devices, .probe = sjoy_probe, }; module_hid_driver(sjoy_driver); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jussi Kivilinna");

Overall Contributors

PersonTokensPropCommitsCommitProp
jussi kivilinnajussi kivilinna62882.96%110.00%
sean youngsean young10914.40%440.00%
joe perchesjoe perches81.06%110.00%
benjamin tissoiresbenjamin tissoires40.53%110.00%
paul gortmakerpaul gortmaker30.40%110.00%
tejun heotejun heo30.40%110.00%
h hartley sweetenh hartley sweeten20.26%110.00%
Total757100.00%10100.00%
Directory: drivers/hid
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