Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Force feedback support for hid-compliant for some of the devices from |
| 3 | * Logitech, namely: |
| 4 | * - WingMan Cordless RumblePad |
| 5 | * - WingMan Force 3D |
| 6 | * |
| 7 | * Copyright (c) 2002-2004 Johann Deneux |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 8 | * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | */ |
| 10 | |
| 11 | /* |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License as published by |
| 14 | * the Free Software Foundation; either version 2 of the License, or |
| 15 | * (at your option) any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 25 | * |
| 26 | * Should you need to contact me, the author, you can do so by |
| 27 | * e-mail - mail your message to <johann.deneux@it.uu.se> |
| 28 | */ |
| 29 | |
Joe Perches | 4291ee3 | 2010-12-09 19:29:03 -0800 | [diff] [blame] | 30 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 31 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include <linux/input.h> |
Jiri Kosina | dde5845 | 2006-12-08 18:40:44 +0100 | [diff] [blame] | 33 | #include <linux/hid.h> |
Jiri Slaby | 606bd0a | 2008-07-04 23:06:45 +0200 | [diff] [blame] | 34 | |
Jiri Slaby | 606bd0a | 2008-07-04 23:06:45 +0200 | [diff] [blame] | 35 | #include "hid-lg.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
Kay Sievers | f9f852d | 2006-10-07 21:54:55 +0200 | [diff] [blame] | 37 | struct dev_type { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | u16 idVendor; |
| 39 | u16 idProduct; |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 40 | const signed short *ff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | }; |
| 42 | |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 43 | static const signed short ff_rumble[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | FF_RUMBLE, |
| 45 | -1 |
| 46 | }; |
| 47 | |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 48 | static const signed short ff_joystick[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | FF_CONSTANT, |
| 50 | -1 |
| 51 | }; |
| 52 | |
Sergey Belyashov | f0bca45 | 2009-05-15 16:05:57 +0200 | [diff] [blame] | 53 | static const signed short ff_joystick_ac[] = { |
| 54 | FF_CONSTANT, |
| 55 | FF_AUTOCENTER, |
| 56 | -1 |
| 57 | }; |
| 58 | |
Kay Sievers | f9f852d | 2006-10-07 21:54:55 +0200 | [diff] [blame] | 59 | static const struct dev_type devices[] = { |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 60 | { 0x046d, 0xc211, ff_rumble }, |
| 61 | { 0x046d, 0xc219, ff_rumble }, |
| 62 | { 0x046d, 0xc283, ff_joystick }, |
Sergey Belyashov | f0bca45 | 2009-05-15 16:05:57 +0200 | [diff] [blame] | 63 | { 0x046d, 0xc286, ff_joystick_ac }, |
Gary Stein | 74f292c | 2010-01-13 00:25:58 +0100 | [diff] [blame] | 64 | { 0x046d, 0xc287, ff_joystick_ac }, |
Jiri Kosina | fd30ea8 | 2009-06-23 12:11:31 +0200 | [diff] [blame] | 65 | { 0x046d, 0xc293, ff_joystick }, |
Valentin Zagura | 130b1ab | 2007-02-18 01:41:27 -0500 | [diff] [blame] | 66 | { 0x046d, 0xc295, ff_joystick }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | }; |
| 68 | |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 69 | static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect) |
| 70 | { |
Dmitry Torokhov | e071298 | 2007-05-09 10:17:31 +0200 | [diff] [blame] | 71 | struct hid_device *hid = input_get_drvdata(dev); |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 72 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
| 73 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); |
| 74 | int x, y; |
| 75 | unsigned int left, right; |
| 76 | |
| 77 | #define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff |
| 78 | |
| 79 | switch (effect->type) { |
| 80 | case FF_CONSTANT: |
| 81 | x = effect->u.ramp.start_level + 0x7f; /* 0x7f is center */ |
| 82 | y = effect->u.ramp.end_level + 0x7f; |
| 83 | CLAMP(x); |
| 84 | CLAMP(y); |
| 85 | report->field[0]->value[0] = 0x51; |
| 86 | report->field[0]->value[1] = 0x08; |
| 87 | report->field[0]->value[2] = x; |
| 88 | report->field[0]->value[3] = y; |
Jiri Kosina | 58037eb | 2007-05-30 15:07:13 +0200 | [diff] [blame] | 89 | dbg_hid("(x, y)=(%04x, %04x)\n", x, y); |
Benjamin Tissoires | d8814272 | 2013-02-25 11:31:46 +0100 | [diff] [blame] | 90 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 91 | break; |
| 92 | |
| 93 | case FF_RUMBLE: |
| 94 | right = effect->u.rumble.strong_magnitude; |
| 95 | left = effect->u.rumble.weak_magnitude; |
| 96 | right = right * 0xff / 0xffff; |
| 97 | left = left * 0xff / 0xffff; |
| 98 | CLAMP(left); |
| 99 | CLAMP(right); |
| 100 | report->field[0]->value[0] = 0x42; |
| 101 | report->field[0]->value[1] = 0x00; |
| 102 | report->field[0]->value[2] = left; |
| 103 | report->field[0]->value[3] = right; |
Jiri Kosina | 58037eb | 2007-05-30 15:07:13 +0200 | [diff] [blame] | 104 | dbg_hid("(left, right)=(%04x, %04x)\n", left, right); |
Benjamin Tissoires | d8814272 | 2013-02-25 11:31:46 +0100 | [diff] [blame] | 105 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 106 | break; |
| 107 | } |
| 108 | return 0; |
| 109 | } |
| 110 | |
Sergey Belyashov | 2bea94d | 2008-09-02 17:31:16 +0200 | [diff] [blame] | 111 | static void hid_lgff_set_autocenter(struct input_dev *dev, u16 magnitude) |
| 112 | { |
| 113 | struct hid_device *hid = input_get_drvdata(dev); |
| 114 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
| 115 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); |
| 116 | __s32 *value = report->field[0]->value; |
| 117 | magnitude = (magnitude >> 12) & 0xf; |
| 118 | *value++ = 0xfe; |
| 119 | *value++ = 0x0d; |
| 120 | *value++ = magnitude; /* clockwise strength */ |
| 121 | *value++ = magnitude; /* counter-clockwise strength */ |
| 122 | *value++ = 0x80; |
| 123 | *value++ = 0x00; |
| 124 | *value = 0x00; |
Benjamin Tissoires | d8814272 | 2013-02-25 11:31:46 +0100 | [diff] [blame] | 125 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
Sergey Belyashov | 2bea94d | 2008-09-02 17:31:16 +0200 | [diff] [blame] | 126 | } |
| 127 | |
Jiri Slaby | 606bd0a | 2008-07-04 23:06:45 +0200 | [diff] [blame] | 128 | int lgff_init(struct hid_device* hid) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | { |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 130 | struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); |
| 131 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
| 132 | struct input_dev *dev = hidinput->input; |
| 133 | struct hid_report *report; |
| 134 | struct hid_field *field; |
Dmitry Torokhov | 00a8691 | 2007-02-18 01:42:11 -0500 | [diff] [blame] | 135 | const signed short *ff_bits = ff_joystick; |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 136 | int error; |
Dmitry Torokhov | 00a8691 | 2007-02-18 01:42:11 -0500 | [diff] [blame] | 137 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
| 139 | /* Find the report to use */ |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 140 | if (list_empty(report_list)) { |
Joe Perches | 4291ee3 | 2010-12-09 19:29:03 -0800 | [diff] [blame] | 141 | hid_err(hid, "No output report found\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | return -1; |
| 143 | } |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 144 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | /* Check that the report looks ok */ |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 146 | report = list_entry(report_list->next, struct hid_report, list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | field = report->field[0]; |
| 148 | if (!field) { |
Joe Perches | 4291ee3 | 2010-12-09 19:29:03 -0800 | [diff] [blame] | 149 | hid_err(hid, "NULL field\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | return -1; |
| 151 | } |
| 152 | |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 153 | for (i = 0; i < ARRAY_SIZE(devices); i++) { |
| 154 | if (dev->id.vendor == devices[i].idVendor && |
| 155 | dev->id.product == devices[i].idProduct) { |
Dmitry Torokhov | 00a8691 | 2007-02-18 01:42:11 -0500 | [diff] [blame] | 156 | ff_bits = devices[i].ff; |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 157 | break; |
| 158 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | } |
| 160 | |
Dmitry Torokhov | 00a8691 | 2007-02-18 01:42:11 -0500 | [diff] [blame] | 161 | for (i = 0; ff_bits[i] >= 0; i++) |
| 162 | set_bit(ff_bits[i], dev->ffbit); |
| 163 | |
Anssi Hannula | dc76c91 | 2006-07-19 01:40:55 -0400 | [diff] [blame] | 164 | error = input_ff_create_memless(dev, NULL, hid_lgff_play); |
| 165 | if (error) |
| 166 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | |
Sergey Belyashov | 2bea94d | 2008-09-02 17:31:16 +0200 | [diff] [blame] | 168 | if ( test_bit(FF_AUTOCENTER, dev->ffbit) ) |
| 169 | dev->ff->set_autocenter = hid_lgff_set_autocenter; |
| 170 | |
Joe Perches | 4291ee3 | 2010-12-09 19:29:03 -0800 | [diff] [blame] | 171 | pr_info("Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | |
| 173 | return 0; |
| 174 | } |