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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Copyright (c) 1999-2001 Vojtech Pavlik |
3 | */ | |
4 | ||
5 | /* | |
6 | * Logitech WingMan Warrior joystick driver for Linux | |
7 | */ | |
8 | ||
9 | /* | |
10 | * This program is free warftware; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | * | |
24 | * Should you need to contact me, the author, you can do so either by | |
25 | * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: | |
26 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic | |
27 | */ | |
28 | ||
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/slab.h> | |
32 | #include <linux/input.h> | |
33 | #include <linux/serio.h> | |
1da177e4 LT |
34 | |
35 | #define DRIVER_DESC "Logitech WingMan Warrior joystick driver" | |
36 | ||
37 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); | |
38 | MODULE_DESCRIPTION(DRIVER_DESC); | |
39 | MODULE_LICENSE("GPL"); | |
40 | ||
41 | /* | |
42 | * Constants. | |
43 | */ | |
44 | ||
45 | #define WARRIOR_MAX_LENGTH 16 | |
46 | static char warrior_lengths[] = { 0, 4, 12, 3, 4, 4, 0, 0 }; | |
1da177e4 LT |
47 | |
48 | /* | |
49 | * Per-Warrior data. | |
50 | */ | |
51 | ||
52 | struct warrior { | |
17dd3f0f | 53 | struct input_dev *dev; |
1da177e4 LT |
54 | int idx, len; |
55 | unsigned char data[WARRIOR_MAX_LENGTH]; | |
56 | char phys[32]; | |
57 | }; | |
58 | ||
59 | /* | |
60 | * warrior_process_packet() decodes packets the driver receives from the | |
61 | * Warrior. It updates the data accordingly. | |
62 | */ | |
63 | ||
7d12e780 | 64 | static void warrior_process_packet(struct warrior *warrior) |
1da177e4 | 65 | { |
17dd3f0f | 66 | struct input_dev *dev = warrior->dev; |
1da177e4 LT |
67 | unsigned char *data = warrior->data; |
68 | ||
69 | if (!warrior->idx) return; | |
70 | ||
1da177e4 LT |
71 | switch ((data[0] >> 4) & 7) { |
72 | case 1: /* Button data */ | |
73 | input_report_key(dev, BTN_TRIGGER, data[3] & 1); | |
74 | input_report_key(dev, BTN_THUMB, (data[3] >> 1) & 1); | |
75 | input_report_key(dev, BTN_TOP, (data[3] >> 2) & 1); | |
76 | input_report_key(dev, BTN_TOP2, (data[3] >> 3) & 1); | |
77 | break; | |
78 | case 3: /* XY-axis info->data */ | |
79 | input_report_abs(dev, ABS_X, ((data[0] & 8) << 5) - (data[2] | ((data[0] & 4) << 5))); | |
80 | input_report_abs(dev, ABS_Y, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7)); | |
81 | break; | |
82 | case 5: /* Throttle, spinner, hat info->data */ | |
83 | input_report_abs(dev, ABS_THROTTLE, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7)); | |
84 | input_report_abs(dev, ABS_HAT0X, (data[3] & 2 ? 1 : 0) - (data[3] & 1 ? 1 : 0)); | |
85 | input_report_abs(dev, ABS_HAT0Y, (data[3] & 8 ? 1 : 0) - (data[3] & 4 ? 1 : 0)); | |
86 | input_report_rel(dev, REL_DIAL, (data[2] | ((data[0] & 4) << 5)) - ((data[0] & 8) << 5)); | |
87 | break; | |
88 | } | |
89 | input_sync(dev); | |
90 | } | |
91 | ||
92 | /* | |
93 | * warrior_interrupt() is called by the low level driver when characters | |
94 | * are ready for us. We then buffer them for further processing, or call the | |
95 | * packet processing routine. | |
96 | */ | |
97 | ||
98 | static irqreturn_t warrior_interrupt(struct serio *serio, | |
7d12e780 | 99 | unsigned char data, unsigned int flags) |
1da177e4 LT |
100 | { |
101 | struct warrior *warrior = serio_get_drvdata(serio); | |
102 | ||
103 | if (data & 0x80) { | |
7d12e780 | 104 | if (warrior->idx) warrior_process_packet(warrior); |
1da177e4 LT |
105 | warrior->idx = 0; |
106 | warrior->len = warrior_lengths[(data >> 4) & 7]; | |
107 | } | |
108 | ||
109 | if (warrior->idx < warrior->len) | |
110 | warrior->data[warrior->idx++] = data; | |
111 | ||
112 | if (warrior->idx == warrior->len) { | |
7d12e780 | 113 | if (warrior->idx) warrior_process_packet(warrior); |
1da177e4 LT |
114 | warrior->idx = 0; |
115 | warrior->len = 0; | |
116 | } | |
117 | return IRQ_HANDLED; | |
118 | } | |
119 | ||
120 | /* | |
121 | * warrior_disconnect() is the opposite of warrior_connect() | |
122 | */ | |
123 | ||
124 | static void warrior_disconnect(struct serio *serio) | |
125 | { | |
126 | struct warrior *warrior = serio_get_drvdata(serio); | |
127 | ||
1da177e4 LT |
128 | serio_close(serio); |
129 | serio_set_drvdata(serio, NULL); | |
17dd3f0f | 130 | input_unregister_device(warrior->dev); |
1da177e4 LT |
131 | kfree(warrior); |
132 | } | |
133 | ||
134 | /* | |
135 | * warrior_connect() is the routine that is called when someone adds a | |
136 | * new serio device. It looks for the Warrior, and if found, registers | |
137 | * it as an input device. | |
138 | */ | |
139 | ||
140 | static int warrior_connect(struct serio *serio, struct serio_driver *drv) | |
141 | { | |
142 | struct warrior *warrior; | |
17dd3f0f DT |
143 | struct input_dev *input_dev; |
144 | int err = -ENOMEM; | |
1da177e4 | 145 | |
17dd3f0f DT |
146 | warrior = kzalloc(sizeof(struct warrior), GFP_KERNEL); |
147 | input_dev = input_allocate_device(); | |
148 | if (!warrior || !input_dev) | |
127278ce | 149 | goto fail1; |
1da177e4 | 150 | |
17dd3f0f | 151 | warrior->dev = input_dev; |
10ca4c0a | 152 | snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys); |
1da177e4 | 153 | |
17dd3f0f DT |
154 | input_dev->name = "Logitech WingMan Warrior"; |
155 | input_dev->phys = warrior->phys; | |
156 | input_dev->id.bustype = BUS_RS232; | |
157 | input_dev->id.vendor = SERIO_WARRIOR; | |
158 | input_dev->id.product = 0x0001; | |
159 | input_dev->id.version = 0x0100; | |
935e658e | 160 | input_dev->dev.parent = &serio->dev; |
17dd3f0f | 161 | |
7b19ada2 JS |
162 | input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) | |
163 | BIT_MASK(EV_ABS); | |
164 | input_dev->keybit[BIT_WORD(BTN_TRIGGER)] = BIT_MASK(BTN_TRIGGER) | | |
165 | BIT_MASK(BTN_THUMB) | BIT_MASK(BTN_TOP) | BIT_MASK(BTN_TOP2); | |
166 | input_dev->relbit[0] = BIT_MASK(REL_DIAL); | |
17dd3f0f DT |
167 | input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 8); |
168 | input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 8); | |
169 | input_set_abs_params(input_dev, ABS_THROTTLE, -112, 112, 0, 0); | |
170 | input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0); | |
ae5536d6 | 171 | input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0); |
1da177e4 LT |
172 | |
173 | serio_set_drvdata(serio, warrior); | |
174 | ||
175 | err = serio_open(serio, drv); | |
17dd3f0f | 176 | if (err) |
127278ce DT |
177 | goto fail2; |
178 | ||
179 | err = input_register_device(warrior->dev); | |
180 | if (err) | |
181 | goto fail3; | |
1da177e4 LT |
182 | |
183 | return 0; | |
17dd3f0f | 184 | |
127278ce DT |
185 | fail3: serio_close(serio); |
186 | fail2: serio_set_drvdata(serio, NULL); | |
187 | fail1: input_free_device(input_dev); | |
17dd3f0f DT |
188 | kfree(warrior); |
189 | return err; | |
1da177e4 LT |
190 | } |
191 | ||
192 | /* | |
193 | * The serio driver structure. | |
194 | */ | |
195 | ||
196 | static struct serio_device_id warrior_serio_ids[] = { | |
197 | { | |
198 | .type = SERIO_RS232, | |
199 | .proto = SERIO_WARRIOR, | |
200 | .id = SERIO_ANY, | |
201 | .extra = SERIO_ANY, | |
202 | }, | |
203 | { 0 } | |
204 | }; | |
205 | ||
206 | MODULE_DEVICE_TABLE(serio, warrior_serio_ids); | |
207 | ||
208 | static struct serio_driver warrior_drv = { | |
209 | .driver = { | |
210 | .name = "warrior", | |
211 | }, | |
212 | .description = DRIVER_DESC, | |
213 | .id_table = warrior_serio_ids, | |
214 | .interrupt = warrior_interrupt, | |
215 | .connect = warrior_connect, | |
216 | .disconnect = warrior_disconnect, | |
217 | }; | |
218 | ||
65ac9f7a | 219 | module_serio_driver(warrior_drv); |