1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
4 * Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
6 * USB/RS232 I-Force joysticks and wheels.
9 #include <asm/unaligned.h>
12 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
13 MODULE_DESCRIPTION("Core I-Force joysticks and wheels driver");
14 MODULE_LICENSE("GPL");
16 static signed short btn_joystick[] =
17 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
18 BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A,
19 BTN_B, BTN_C, BTN_DEAD, -1 };
21 static signed short btn_joystick_avb[] =
22 { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE,
23 BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_DEAD, -1 };
25 static signed short btn_wheel[] =
26 { BTN_GEAR_DOWN, BTN_GEAR_UP, BTN_BASE, BTN_BASE2, BTN_BASE3,
27 BTN_BASE4, BTN_BASE5, BTN_BASE6, -1 };
29 static signed short abs_joystick[] =
30 { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
32 static signed short abs_joystick_rudder[] =
33 { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y, -1 };
35 static signed short abs_avb_pegasus[] =
36 { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y,
37 ABS_HAT1X, ABS_HAT1Y, -1 };
39 static signed short abs_wheel[] =
40 { ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, -1 };
42 static signed short ff_iforce[] =
43 { FF_PERIODIC, FF_CONSTANT, FF_SPRING, FF_DAMPER,
44 FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP, FF_SAW_DOWN, FF_GAIN,
47 static struct iforce_device iforce_device[] = {
48 { 0x044f, 0xa01c, "Thrustmaster Motor Sport GT", btn_wheel, abs_wheel, ff_iforce },
49 { 0x046d, 0xc281, "Logitech WingMan Force", btn_joystick, abs_joystick, ff_iforce },
50 { 0x046d, 0xc291, "Logitech WingMan Formula Force", btn_wheel, abs_wheel, ff_iforce },
51 { 0x05ef, 0x020a, "AVB Top Shot Pegasus", btn_joystick_avb, abs_avb_pegasus, ff_iforce },
52 { 0x05ef, 0x8884, "AVB Mag Turbo Force", btn_wheel, abs_wheel, ff_iforce },
53 { 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
54 { 0x061c, 0xc0a4, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce }, //?
55 { 0x061c, 0xc084, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce },
56 { 0x06a3, 0xff04, "Saitek R440 Force Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
57 { 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback", btn_wheel, abs_wheel, ff_iforce }, //?
58 { 0x06f8, 0x0001, "Guillemot Jet Leader Force Feedback", btn_joystick, abs_joystick_rudder, ff_iforce },
59 { 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
60 { 0x06f8, 0xa302, "Guillemot Jet Leader 3D", btn_joystick, abs_joystick, ff_iforce }, //?
61 { 0x06d6, 0x29bc, "Trust Force Feedback Race Master", btn_wheel, abs_wheel, ff_iforce },
62 { 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]", btn_joystick, abs_joystick, ff_iforce }
65 static int iforce_playback(struct input_dev *dev, int effect_id, int value)
67 struct iforce *iforce = input_get_drvdata(dev);
68 struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
71 set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
73 clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
75 iforce_control_playback(iforce, effect_id, value);
79 static void iforce_set_gain(struct input_dev *dev, u16 gain)
81 struct iforce *iforce = input_get_drvdata(dev);
82 unsigned char data[3];
85 iforce_send_packet(iforce, FF_CMD_GAIN, data);
88 static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
90 struct iforce *iforce = input_get_drvdata(dev);
91 unsigned char data[3];
94 data[1] = magnitude >> 9;
95 iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
99 iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
103 * Function called when an ioctl is performed on the event dev entry.
104 * It uploads an effect to the device
106 static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
108 struct iforce *iforce = input_get_drvdata(dev);
109 struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
112 if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
113 /* Check the effect is not already being updated */
114 if (test_bit(FF_CORE_UPDATE, core_effect->flags))
121 switch (effect->type) {
123 ret = iforce_upload_periodic(iforce, effect, old);
127 ret = iforce_upload_constant(iforce, effect, old);
132 ret = iforce_upload_condition(iforce, effect, old);
140 /* A packet was sent, forbid new updates until we are notified
141 * that the packet was updated
143 set_bit(FF_CORE_UPDATE, core_effect->flags);
149 * Erases an effect: it frees the effect id and mark as unused the memory
150 * allocated for the parameters
152 static int iforce_erase_effect(struct input_dev *dev, int effect_id)
154 struct iforce *iforce = input_get_drvdata(dev);
155 struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
158 if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
159 err = release_resource(&core_effect->mod1_chunk);
161 if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
162 err = release_resource(&core_effect->mod2_chunk);
164 /* TODO: remember to change that if more FF_MOD* bits are added */
165 core_effect->flags[0] = 0;
170 static int iforce_open(struct input_dev *dev)
172 struct iforce *iforce = input_get_drvdata(dev);
174 iforce->xport_ops->start_io(iforce);
176 if (test_bit(EV_FF, dev->evbit)) {
177 /* Enable force feedback */
178 iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
184 static void iforce_close(struct input_dev *dev)
186 struct iforce *iforce = input_get_drvdata(dev);
189 if (test_bit(EV_FF, dev->evbit)) {
190 /* Check: no effects should be present in memory */
191 for (i = 0; i < dev->ff->max_effects; i++) {
192 if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
194 "%s: Device still owns effects\n",
200 /* Disable force feedback playback */
201 iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
202 /* Wait for the command to complete */
203 wait_event_interruptible(iforce->wait,
204 !test_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags));
207 iforce->xport_ops->stop_io(iforce);
210 int iforce_init_device(struct device *parent, u16 bustype,
211 struct iforce *iforce)
213 struct input_dev *input_dev;
214 struct ff_device *ff;
216 u8 buf[IFORCE_MAX_LENGTH];
221 input_dev = input_allocate_device();
225 init_waitqueue_head(&iforce->wait);
226 spin_lock_init(&iforce->xmit_lock);
227 mutex_init(&iforce->mem_mutex);
228 iforce->xmit.buf = iforce->xmit_data;
229 iforce->dev = input_dev;
232 * Input device fields.
235 input_dev->id.bustype = bustype;
236 input_dev->dev.parent = parent;
238 input_set_drvdata(input_dev, iforce);
240 input_dev->name = "Unknown I-Force device";
241 input_dev->open = iforce_open;
242 input_dev->close = iforce_close;
245 * On-device memory allocation.
248 iforce->device_memory.name = "I-Force device effect memory";
249 iforce->device_memory.start = 0;
250 iforce->device_memory.end = 200;
251 iforce->device_memory.flags = IORESOURCE_MEM;
252 iforce->device_memory.parent = NULL;
253 iforce->device_memory.child = NULL;
254 iforce->device_memory.sibling = NULL;
257 * Wait until device ready - until it sends its first response.
260 for (i = 0; i < 20; i++)
261 if (!iforce_get_id_packet(iforce, 'O', buf, &len))
264 if (i == 20) { /* 5 seconds */
265 dev_err(&input_dev->dev,
266 "Timeout waiting for response from device.\n");
275 if (!iforce_get_id_packet(iforce, 'M', buf, &len) || len < 3)
276 input_dev->id.vendor = get_unaligned_le16(buf + 1);
278 dev_warn(&iforce->dev->dev, "Device does not respond to id packet M\n");
280 if (!iforce_get_id_packet(iforce, 'P', buf, &len) || len < 3)
281 input_dev->id.product = get_unaligned_le16(buf + 1);
283 dev_warn(&iforce->dev->dev, "Device does not respond to id packet P\n");
285 if (!iforce_get_id_packet(iforce, 'B', buf, &len) || len < 3)
286 iforce->device_memory.end = get_unaligned_le16(buf + 1);
288 dev_warn(&iforce->dev->dev, "Device does not respond to id packet B\n");
290 if (!iforce_get_id_packet(iforce, 'N', buf, &len) || len < 2)
293 dev_warn(&iforce->dev->dev, "Device does not respond to id packet N\n");
295 /* Check if the device can store more effects than the driver can really handle */
296 if (ff_effects > IFORCE_EFFECTS_MAX) {
297 dev_warn(&iforce->dev->dev, "Limiting number of effects to %d (device reports %d)\n",
298 IFORCE_EFFECTS_MAX, ff_effects);
299 ff_effects = IFORCE_EFFECTS_MAX;
303 * Display additional info.
306 for (i = 0; c[i]; i++)
307 if (!iforce_get_id_packet(iforce, c[i], buf, &len))
308 iforce_dump_packet(iforce, "info",
309 (FF_CMD_QUERY & 0xff00) | len, buf);
312 * Disable spring, enable force feedback.
314 iforce_set_autocenter(input_dev, 0);
317 * Find appropriate device entry
320 for (i = 0; iforce_device[i].idvendor; i++)
321 if (iforce_device[i].idvendor == input_dev->id.vendor &&
322 iforce_device[i].idproduct == input_dev->id.product)
325 iforce->type = iforce_device + i;
326 input_dev->name = iforce->type->name;
329 * Set input device bitfields and ranges.
332 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) |
333 BIT_MASK(EV_FF_STATUS);
335 for (i = 0; iforce->type->btn[i] >= 0; i++)
336 set_bit(iforce->type->btn[i], input_dev->keybit);
338 for (i = 0; iforce->type->abs[i] >= 0; i++) {
340 signed short t = iforce->type->abs[i];
346 input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
347 set_bit(t, input_dev->ffbit);
353 input_set_abs_params(input_dev, t, 0, 255, 0, 0);
357 input_set_abs_params(input_dev, t, -128, 127, 0, 0);
364 input_set_abs_params(input_dev, t, -1, 1, 0, 0);
371 for (i = 0; iforce->type->ff[i] >= 0; i++)
372 set_bit(iforce->type->ff[i], input_dev->ffbit);
374 error = input_ff_create(input_dev, ff_effects);
379 ff->upload = iforce_upload_effect;
380 ff->erase = iforce_erase_effect;
381 ff->set_gain = iforce_set_gain;
382 ff->set_autocenter = iforce_set_autocenter;
383 ff->playback = iforce_playback;
386 * Register input device.
389 error = input_register_device(iforce->dev);
395 fail: input_free_device(input_dev);
398 EXPORT_SYMBOL(iforce_init_device);