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222 lines
5.5 KiB
222 lines
5.5 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Force feedback support for PantherLord/GreenAsia based devices |
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* |
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* The devices are distributed under various names and the same USB device ID |
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* can be used in both adapters and actual game controllers. |
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* |
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* 0810:0001 "Twin USB Joystick" |
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* - tested with PantherLord USB/PS2 2in1 Adapter |
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* - contains two reports, one for each port (HID_QUIRK_MULTI_INPUT) |
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* |
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* 0e8f:0003 "GreenAsia Inc. USB Joystick " |
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* - tested with König Gaming gamepad |
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* |
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* 0e8f:0003 "GASIA USB Gamepad" |
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* - another version of the König gamepad |
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* |
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* 0f30:0111 "Saitek Color Rumble Pad" |
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* |
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* Copyright (c) 2007, 2009 Anssi Hannula <[email protected]> |
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*/ |
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/* |
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*/ |
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/* #define DEBUG */ |
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#define debug(format, arg...) pr_debug("hid-plff: " format "\n" , ## arg) |
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#include <linux/input.h> |
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#include <linux/slab.h> |
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#include <linux/module.h> |
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#include <linux/hid.h> |
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#include "hid-ids.h" |
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#ifdef CONFIG_PANTHERLORD_FF |
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struct plff_device { |
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struct hid_report *report; |
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s32 maxval; |
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s32 *strong; |
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s32 *weak; |
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}; |
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static int hid_plff_play(struct input_dev *dev, void *data, |
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struct ff_effect *effect) |
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{ |
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struct hid_device *hid = input_get_drvdata(dev); |
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struct plff_device *plff = data; |
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int left, right; |
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left = effect->u.rumble.strong_magnitude; |
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right = effect->u.rumble.weak_magnitude; |
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debug("called with 0x%04x 0x%04x", left, right); |
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left = left * plff->maxval / 0xffff; |
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right = right * plff->maxval / 0xffff; |
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*plff->strong = left; |
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*plff->weak = right; |
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debug("running with 0x%02x 0x%02x", left, right); |
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hid_hw_request(hid, plff->report, HID_REQ_SET_REPORT); |
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return 0; |
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} |
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static int plff_init(struct hid_device *hid) |
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{ |
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struct plff_device *plff; |
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struct hid_report *report; |
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struct hid_input *hidinput; |
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struct list_head *report_list = |
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&hid->report_enum[HID_OUTPUT_REPORT].report_list; |
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struct list_head *report_ptr = report_list; |
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struct input_dev *dev; |
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int error; |
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s32 maxval; |
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s32 *strong; |
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s32 *weak; |
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/* The device contains one output report per physical device, all |
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containing 1 field, which contains 4 ff00.0002 usages and 4 16bit |
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absolute values. |
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The input reports also contain a field which contains |
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8 ff00.0001 usages and 8 boolean values. Their meaning is |
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currently unknown. |
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A version of the 0e8f:0003 exists that has all the values in |
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separate fields and misses the extra input field, thus resembling |
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Zeroplus (hid-zpff) devices. |
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*/ |
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if (list_empty(report_list)) { |
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hid_err(hid, "no output reports found\n"); |
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return -ENODEV; |
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} |
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list_for_each_entry(hidinput, &hid->inputs, list) { |
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report_ptr = report_ptr->next; |
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if (report_ptr == report_list) { |
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hid_err(hid, "required output report is missing\n"); |
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return -ENODEV; |
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} |
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report = list_entry(report_ptr, struct hid_report, list); |
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if (report->maxfield < 1) { |
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hid_err(hid, "no fields in the report\n"); |
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return -ENODEV; |
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} |
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maxval = 0x7f; |
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if (report->field[0]->report_count >= 4) { |
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report->field[0]->value[0] = 0x00; |
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report->field[0]->value[1] = 0x00; |
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strong = &report->field[0]->value[2]; |
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weak = &report->field[0]->value[3]; |
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debug("detected single-field device"); |
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} else if (report->field[0]->maxusage == 1 && |
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report->field[0]->usage[0].hid == |
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(HID_UP_LED | 0x43) && |
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report->maxfield >= 4 && |
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report->field[0]->report_count >= 1 && |
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report->field[1]->report_count >= 1 && |
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report->field[2]->report_count >= 1 && |
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report->field[3]->report_count >= 1) { |
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report->field[0]->value[0] = 0x00; |
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report->field[1]->value[0] = 0x00; |
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strong = &report->field[2]->value[0]; |
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weak = &report->field[3]->value[0]; |
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if (hid->vendor == USB_VENDOR_ID_JESS2) |
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maxval = 0xff; |
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debug("detected 4-field device"); |
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} else { |
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hid_err(hid, "not enough fields or values\n"); |
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return -ENODEV; |
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} |
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plff = kzalloc(sizeof(struct plff_device), GFP_KERNEL); |
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if (!plff) |
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return -ENOMEM; |
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dev = hidinput->input; |
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set_bit(FF_RUMBLE, dev->ffbit); |
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error = input_ff_create_memless(dev, plff, hid_plff_play); |
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if (error) { |
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kfree(plff); |
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return error; |
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} |
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plff->report = report; |
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plff->strong = strong; |
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plff->weak = weak; |
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plff->maxval = maxval; |
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*strong = 0x00; |
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*weak = 0x00; |
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hid_hw_request(hid, plff->report, HID_REQ_SET_REPORT); |
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} |
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hid_info(hid, "Force feedback for PantherLord/GreenAsia devices by Anssi Hannula <[email protected]>\n"); |
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return 0; |
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} |
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#else |
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static inline int plff_init(struct hid_device *hid) |
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{ |
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return 0; |
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} |
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#endif |
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static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id) |
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{ |
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int ret; |
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if (id->driver_data) |
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hdev->quirks |= HID_QUIRK_MULTI_INPUT; |
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ret = hid_parse(hdev); |
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if (ret) { |
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hid_err(hdev, "parse failed\n"); |
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goto err; |
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} |
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ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); |
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if (ret) { |
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hid_err(hdev, "hw start failed\n"); |
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goto err; |
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} |
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plff_init(hdev); |
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return 0; |
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err: |
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return ret; |
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} |
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static const struct hid_device_id pl_devices[] = { |
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{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR), |
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.driver_data = 1 }, /* Twin USB Joystick */ |
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{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR), |
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.driver_data = 1 }, /* Twin USB Joystick */ |
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{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003), }, |
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{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD), }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(hid, pl_devices); |
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static struct hid_driver pl_driver = { |
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.name = "pantherlord", |
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.id_table = pl_devices, |
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.probe = pl_probe, |
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}; |
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module_hid_driver(pl_driver); |
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MODULE_LICENSE("GPL");
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