diff options
Diffstat (limited to 'drivers/hid/hid-dr.c')
| -rw-r--r-- | drivers/hid/hid-dr.c | 64 |
1 files changed, 42 insertions, 22 deletions
diff --git a/drivers/hid/hid-dr.c b/drivers/hid/hid-dr.c index ce0644424f58..84e1e90a266b 100644 --- a/drivers/hid/hid-dr.c +++ b/drivers/hid/hid-dr.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Force feedback support for DragonRise Inc. game controllers * @@ -12,19 +13,6 @@ */ /* - * 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 */ #include <linux/input.h> @@ -87,13 +75,19 @@ static int drff_init(struct hid_device *hid) { struct drff_device *drff; struct hid_report *report; - struct hid_input *hidinput = list_first_entry(&hid->inputs, - struct hid_input, list); + struct hid_input *hidinput; struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; - struct input_dev *dev = hidinput->input; + struct input_dev *dev; int error; + if (list_empty(&hid->inputs)) { + hid_err(hid, "no inputs found\n"); + return -ENODEV; + } + hidinput = list_first_entry(&hid->inputs, struct hid_input, list); + dev = hidinput->input; + if (list_empty(report_list)) { hid_err(hid, "no output reports found\n"); return -ENODEV; @@ -151,7 +145,7 @@ static inline int drff_init(struct hid_device *hid) * descriptor. In any case, it's a wonder it works on Windows. * * Usage Page (Desktop), ; Generic desktop controls (01h) - * Usage (Joystik), ; Joystik (04h, application collection) + * Usage (Joystick), ; Joystick (04h, application collection) * Collection (Application), * Collection (Logical), * Report Size (8), @@ -205,9 +199,9 @@ static inline int drff_init(struct hid_device *hid) #define PID0011_RDESC_ORIG_SIZE 101 /* Fixed report descriptor for PID 0x011 joystick */ -static __u8 pid0011_rdesc_fixed[] = { +static const __u8 pid0011_rdesc_fixed[] = { 0x05, 0x01, /* Usage Page (Desktop), */ - 0x09, 0x04, /* Usage (Joystik), */ + 0x09, 0x04, /* Usage (Joystick), */ 0xA1, 0x01, /* Collection (Application), */ 0xA1, 0x02, /* Collection (Logical), */ 0x14, /* Logical Minimum (0), */ @@ -234,20 +228,44 @@ static __u8 pid0011_rdesc_fixed[] = { 0xC0 /* End Collection */ }; -static __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc, - unsigned int *rsize) +static const __u8 *dr_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int *rsize) { switch (hdev->product) { case 0x0011: if (*rsize == PID0011_RDESC_ORIG_SIZE) { - rdesc = pid0011_rdesc_fixed; *rsize = sizeof(pid0011_rdesc_fixed); + return pid0011_rdesc_fixed; } break; } return rdesc; } +#define map_abs(c) hid_map_usage(hi, usage, bit, max, EV_ABS, (c)) +#define map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c)) + +static int dr_input_mapping(struct hid_device *hdev, struct hid_input *hi, + struct hid_field *field, struct hid_usage *usage, + unsigned long **bit, int *max) +{ + switch (usage->hid) { + /* + * revert to the old hid-input behavior where axes + * can be randomly assigned when hid->usage is reused. + */ + case HID_GD_X: case HID_GD_Y: case HID_GD_Z: + case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ: + if (field->flags & HID_MAIN_ITEM_RELATIVE) + map_rel(usage->hid & 0xf); + else + map_abs(usage->hid & 0xf); + return 1; + } + + return 0; +} + static int dr_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret; @@ -294,7 +312,9 @@ static struct hid_driver dr_driver = { .id_table = dr_devices, .report_fixup = dr_report_fixup, .probe = dr_probe, + .input_mapping = dr_input_mapping, }; module_hid_driver(dr_driver); +MODULE_DESCRIPTION("Force feedback support for DragonRise Inc. game controllers"); MODULE_LICENSE("GPL"); |