Thomas Gleixner | e8fc9828 | 2019-05-20 19:07:56 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Copyright (c) 1999-2001 Vojtech Pavlik |
| 4 | */ |
| 5 | |
| 6 | /* |
| 7 | * Logitech WingMan Warrior joystick driver for Linux |
| 8 | */ |
| 9 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | #include <linux/kernel.h> |
| 11 | #include <linux/module.h> |
| 12 | #include <linux/slab.h> |
| 13 | #include <linux/input.h> |
| 14 | #include <linux/serio.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | |
| 16 | #define DRIVER_DESC "Logitech WingMan Warrior joystick driver" |
| 17 | |
| 18 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); |
| 19 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 20 | MODULE_LICENSE("GPL"); |
| 21 | |
| 22 | /* |
| 23 | * Constants. |
| 24 | */ |
| 25 | |
| 26 | #define WARRIOR_MAX_LENGTH 16 |
| 27 | static char warrior_lengths[] = { 0, 4, 12, 3, 4, 4, 0, 0 }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
| 29 | /* |
| 30 | * Per-Warrior data. |
| 31 | */ |
| 32 | |
| 33 | struct warrior { |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 34 | struct input_dev *dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | int idx, len; |
| 36 | unsigned char data[WARRIOR_MAX_LENGTH]; |
| 37 | char phys[32]; |
| 38 | }; |
| 39 | |
| 40 | /* |
| 41 | * warrior_process_packet() decodes packets the driver receives from the |
| 42 | * Warrior. It updates the data accordingly. |
| 43 | */ |
| 44 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 45 | static void warrior_process_packet(struct warrior *warrior) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | { |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 47 | struct input_dev *dev = warrior->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | unsigned char *data = warrior->data; |
| 49 | |
| 50 | if (!warrior->idx) return; |
| 51 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | switch ((data[0] >> 4) & 7) { |
| 53 | case 1: /* Button data */ |
| 54 | input_report_key(dev, BTN_TRIGGER, data[3] & 1); |
| 55 | input_report_key(dev, BTN_THUMB, (data[3] >> 1) & 1); |
| 56 | input_report_key(dev, BTN_TOP, (data[3] >> 2) & 1); |
| 57 | input_report_key(dev, BTN_TOP2, (data[3] >> 3) & 1); |
| 58 | break; |
| 59 | case 3: /* XY-axis info->data */ |
| 60 | input_report_abs(dev, ABS_X, ((data[0] & 8) << 5) - (data[2] | ((data[0] & 4) << 5))); |
| 61 | input_report_abs(dev, ABS_Y, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7)); |
| 62 | break; |
| 63 | case 5: /* Throttle, spinner, hat info->data */ |
| 64 | input_report_abs(dev, ABS_THROTTLE, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7)); |
| 65 | input_report_abs(dev, ABS_HAT0X, (data[3] & 2 ? 1 : 0) - (data[3] & 1 ? 1 : 0)); |
| 66 | input_report_abs(dev, ABS_HAT0Y, (data[3] & 8 ? 1 : 0) - (data[3] & 4 ? 1 : 0)); |
| 67 | input_report_rel(dev, REL_DIAL, (data[2] | ((data[0] & 4) << 5)) - ((data[0] & 8) << 5)); |
| 68 | break; |
| 69 | } |
| 70 | input_sync(dev); |
| 71 | } |
| 72 | |
| 73 | /* |
| 74 | * warrior_interrupt() is called by the low level driver when characters |
| 75 | * are ready for us. We then buffer them for further processing, or call the |
| 76 | * packet processing routine. |
| 77 | */ |
| 78 | |
| 79 | static irqreturn_t warrior_interrupt(struct serio *serio, |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 80 | unsigned char data, unsigned int flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | { |
| 82 | struct warrior *warrior = serio_get_drvdata(serio); |
| 83 | |
| 84 | if (data & 0x80) { |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 85 | if (warrior->idx) warrior_process_packet(warrior); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | warrior->idx = 0; |
| 87 | warrior->len = warrior_lengths[(data >> 4) & 7]; |
| 88 | } |
| 89 | |
| 90 | if (warrior->idx < warrior->len) |
| 91 | warrior->data[warrior->idx++] = data; |
| 92 | |
| 93 | if (warrior->idx == warrior->len) { |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 94 | if (warrior->idx) warrior_process_packet(warrior); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | warrior->idx = 0; |
| 96 | warrior->len = 0; |
| 97 | } |
| 98 | return IRQ_HANDLED; |
| 99 | } |
| 100 | |
| 101 | /* |
| 102 | * warrior_disconnect() is the opposite of warrior_connect() |
| 103 | */ |
| 104 | |
| 105 | static void warrior_disconnect(struct serio *serio) |
| 106 | { |
| 107 | struct warrior *warrior = serio_get_drvdata(serio); |
| 108 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | serio_close(serio); |
| 110 | serio_set_drvdata(serio, NULL); |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 111 | input_unregister_device(warrior->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | kfree(warrior); |
| 113 | } |
| 114 | |
| 115 | /* |
| 116 | * warrior_connect() is the routine that is called when someone adds a |
| 117 | * new serio device. It looks for the Warrior, and if found, registers |
| 118 | * it as an input device. |
| 119 | */ |
| 120 | |
| 121 | static int warrior_connect(struct serio *serio, struct serio_driver *drv) |
| 122 | { |
| 123 | struct warrior *warrior; |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 124 | struct input_dev *input_dev; |
| 125 | int err = -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 127 | warrior = kzalloc(sizeof(struct warrior), GFP_KERNEL); |
| 128 | input_dev = input_allocate_device(); |
| 129 | if (!warrior || !input_dev) |
Dmitry Torokhov | 127278c | 2006-11-05 22:40:09 -0500 | [diff] [blame] | 130 | goto fail1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 132 | warrior->dev = input_dev; |
Dmitry Torokhov | 10ca4c0 | 2006-06-26 01:45:48 -0400 | [diff] [blame] | 133 | snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 135 | input_dev->name = "Logitech WingMan Warrior"; |
| 136 | input_dev->phys = warrior->phys; |
| 137 | input_dev->id.bustype = BUS_RS232; |
| 138 | input_dev->id.vendor = SERIO_WARRIOR; |
| 139 | input_dev->id.product = 0x0001; |
| 140 | input_dev->id.version = 0x0100; |
Dmitry Torokhov | 935e658 | 2007-04-12 01:35:26 -0400 | [diff] [blame] | 141 | input_dev->dev.parent = &serio->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | |
Jiri Slaby | 7b19ada | 2007-10-18 23:40:32 -0700 | [diff] [blame] | 143 | input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) | |
| 144 | BIT_MASK(EV_ABS); |
| 145 | input_dev->keybit[BIT_WORD(BTN_TRIGGER)] = BIT_MASK(BTN_TRIGGER) | |
| 146 | BIT_MASK(BTN_THUMB) | BIT_MASK(BTN_TOP) | BIT_MASK(BTN_TOP2); |
| 147 | input_dev->relbit[0] = BIT_MASK(REL_DIAL); |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 148 | input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 8); |
| 149 | input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 8); |
| 150 | input_set_abs_params(input_dev, ABS_THROTTLE, -112, 112, 0, 0); |
| 151 | input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0); |
Dmitry Torokhov | ae5536d | 2005-12-29 22:19:08 -0500 | [diff] [blame] | 152 | input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
| 154 | serio_set_drvdata(serio, warrior); |
| 155 | |
| 156 | err = serio_open(serio, drv); |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 157 | if (err) |
Dmitry Torokhov | 127278c | 2006-11-05 22:40:09 -0500 | [diff] [blame] | 158 | goto fail2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | |
Dmitry Torokhov | 127278c | 2006-11-05 22:40:09 -0500 | [diff] [blame] | 160 | err = input_register_device(warrior->dev); |
| 161 | if (err) |
| 162 | goto fail3; |
| 163 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | return 0; |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 165 | |
Dmitry Torokhov | 127278c | 2006-11-05 22:40:09 -0500 | [diff] [blame] | 166 | fail3: serio_close(serio); |
| 167 | fail2: serio_set_drvdata(serio, NULL); |
| 168 | fail1: input_free_device(input_dev); |
Dmitry Torokhov | 17dd3f0 | 2005-09-15 02:01:52 -0500 | [diff] [blame] | 169 | kfree(warrior); |
| 170 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | /* |
| 174 | * The serio driver structure. |
| 175 | */ |
| 176 | |
Arvind Yadav | bee186d | 2017-08-18 17:08:52 -0700 | [diff] [blame] | 177 | static const struct serio_device_id warrior_serio_ids[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | { |
| 179 | .type = SERIO_RS232, |
| 180 | .proto = SERIO_WARRIOR, |
| 181 | .id = SERIO_ANY, |
| 182 | .extra = SERIO_ANY, |
| 183 | }, |
| 184 | { 0 } |
| 185 | }; |
| 186 | |
| 187 | MODULE_DEVICE_TABLE(serio, warrior_serio_ids); |
| 188 | |
| 189 | static struct serio_driver warrior_drv = { |
| 190 | .driver = { |
| 191 | .name = "warrior", |
| 192 | }, |
| 193 | .description = DRIVER_DESC, |
| 194 | .id_table = warrior_serio_ids, |
| 195 | .interrupt = warrior_interrupt, |
| 196 | .connect = warrior_connect, |
| 197 | .disconnect = warrior_disconnect, |
| 198 | }; |
| 199 | |
Axel Lin | 65ac9f7a | 2012-04-03 23:50:17 -0700 | [diff] [blame] | 200 | module_serio_driver(warrior_drv); |