1 files changed, 557 insertions, 0 deletions

diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c
new file mode 100644
index 000000000000..028f3513629a
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-main.c
@@ -0,0 +1,557 @@
+/*
+ * $Id: iforce-main.c,v 1.19 2002/07/07 10:22:50 jdeneux Exp $
+ *
+ *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ *  Copyright (c) 2001-2002 Johann Deneux <deneux@ifrance.com>
+ *
+ *  USB/RS232 I-Force joysticks and wheels.
+ */
+
+/*
+ * 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
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include "iforce.h"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <deneux@ifrance.com>");
+MODULE_DESCRIPTION("USB/RS232 I-Force joysticks and wheels driver");
+MODULE_LICENSE("GPL");
+
+static signed short btn_joystick[] =
+{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
+  BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A, BTN_B, BTN_C, -1 };
+
+static signed short btn_avb_pegasus[] =
+{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
+  BTN_BASE2, BTN_BASE3, BTN_BASE4, -1 };
+
+static signed short btn_wheel[] =
+{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
+  BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A, BTN_B, BTN_C, -1 };
+
+static signed short btn_avb_tw[] =
+{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE,
+  BTN_BASE2, BTN_BASE3, BTN_BASE4, -1 };
+
+static signed short btn_avb_wheel[] =
+{ BTN_GEAR_DOWN, BTN_GEAR_UP, BTN_BASE, BTN_BASE2, BTN_BASE3,
+  BTN_BASE4, BTN_BASE5, BTN_BASE6, -1 };
+
+static signed short abs_joystick[] =
+{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
+
+static signed short abs_avb_pegasus[] =
+{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y,
+  ABS_HAT1X, ABS_HAT1Y, -1 };
+
+static signed short abs_wheel[] =
+{ ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, -1 };
+
+static signed short ff_iforce[] =
+{ FF_PERIODIC, FF_CONSTANT, FF_SPRING, FF_DAMPER,
+  FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP, FF_SAW_DOWN, FF_GAIN,
+  FF_AUTOCENTER, -1 };
+
+static struct iforce_device iforce_device[] = {
+	{ 0x044f, 0xa01c, "Thrustmaster Motor Sport GT",		btn_wheel, abs_wheel, ff_iforce },
+	{ 0x046d, 0xc281, "Logitech WingMan Force",			btn_joystick, abs_joystick, ff_iforce },
+	{ 0x046d, 0xc291, "Logitech WingMan Formula Force",		btn_wheel, abs_wheel, ff_iforce },
+	{ 0x05ef, 0x020a, "AVB Top Shot Pegasus",			btn_avb_pegasus, abs_avb_pegasus, ff_iforce },
+	{ 0x05ef, 0x8884, "AVB Mag Turbo Force",			btn_avb_wheel, abs_wheel, ff_iforce },
+	{ 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel",	btn_avb_tw, abs_wheel, ff_iforce }, //?
+	{ 0x061c, 0xc0a4, "ACT LABS Force RS",                          btn_wheel, abs_wheel, ff_iforce }, //?
+	{ 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback",	btn_wheel, abs_wheel, ff_iforce }, //?
+	{ 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel",	btn_wheel, abs_wheel, ff_iforce }, //?
+	{ 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]",		btn_joystick, abs_joystick, ff_iforce }
+};
+
+
+
+static int iforce_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+	struct iforce* iforce = (struct iforce*)(dev->private);
+	unsigned char data[3];
+
+	if (type != EV_FF)
+		return -1;
+
+	switch (code) {
+
+		case FF_GAIN:
+
+			data[0] = value >> 9;
+			iforce_send_packet(iforce, FF_CMD_GAIN, data);
+
+			return 0;
+
+		case FF_AUTOCENTER:
+
+			data[0] = 0x03;
+			data[1] = value >> 9;
+			iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
+
+			data[0] = 0x04;
+			data[1] = 0x01;
+			iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
+
+			return 0;
+
+		default: /* Play or stop an effect */
+
+			if (!CHECK_OWNERSHIP(code, iforce)) {
+				return -1;
+			}
+			if (value > 0) {
+				set_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
+			}
+			else {
+				clear_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
+			}
+
+			iforce_control_playback(iforce, code, value);
+			return 0;
+	}
+
+	return -1;
+}
+
+/*
+ * Function called when an ioctl is performed on the event dev entry.
+ * It uploads an effect to the device
+ */
+static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
+{
+	struct iforce* iforce = (struct iforce*)(dev->private);
+	int id;
+	int ret;
+	int is_update;
+
+/* Check this effect type is supported by this device */
+	if (!test_bit(effect->type, iforce->dev.ffbit))
+		return -EINVAL;
+
+/*
+ * If we want to create a new effect, get a free id
+ */
+	if (effect->id == -1) {
+
+		for (id=0; id < FF_EFFECTS_MAX; ++id)
+			if (!test_and_set_bit(FF_CORE_IS_USED, iforce->core_effects[id].flags)) break;
+
+		if ( id == FF_EFFECTS_MAX || id >= iforce->dev.ff_effects_max)
+			return -ENOMEM;
+
+		effect->id = id;
+		iforce->core_effects[id].owner = current->pid;
+		iforce->core_effects[id].flags[0] = (1<<FF_CORE_IS_USED);	/* Only IS_USED bit must be set */
+
+		is_update = FALSE;
+	}
+	else {
+		/* We want to update an effect */
+		if (!CHECK_OWNERSHIP(effect->id, iforce)) return -EACCES;
+
+		/* Parameter type cannot be updated */
+		if (effect->type != iforce->core_effects[effect->id].effect.type)
+			return -EINVAL;
+
+		/* Check the effect is not already being updated */
+		if (test_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags)) {
+			return -EAGAIN;
+		}
+
+		is_update = TRUE;
+	}
+
+/*
+ * Upload the effect
+ */
+	switch (effect->type) {
+
+		case FF_PERIODIC:
+			ret = iforce_upload_periodic(iforce, effect, is_update);
+			break;
+
+		case FF_CONSTANT:
+			ret = iforce_upload_constant(iforce, effect, is_update);
+			break;
+
+		case FF_SPRING:
+		case FF_DAMPER:
+			ret = iforce_upload_condition(iforce, effect, is_update);
+			break;
+
+		default:
+			return -EINVAL;
+	}
+	if (ret == 0) {
+		/* A packet was sent, forbid new updates until we are notified
+		 * that the packet was updated
+		 */
+		set_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags);
+	}
+	iforce->core_effects[effect->id].effect = *effect;
+	return ret;
+}
+
+/*
+ * Erases an effect: it frees the effect id and mark as unused the memory
+ * allocated for the parameters
+ */
+static int iforce_erase_effect(struct input_dev *dev, int effect_id)
+{
+	struct iforce* iforce = (struct iforce*)(dev->private);
+	int err = 0;
+	struct iforce_core_effect* core_effect;
+
+	/* Check who is trying to erase this effect */
+	if (iforce->core_effects[effect_id].owner != current->pid) {
+		printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, iforce->core_effects[effect_id].owner);
+		return -EACCES;
+	}
+
+	if (effect_id < 0 || effect_id >= FF_EFFECTS_MAX)
+		return -EINVAL;
+
+	core_effect = iforce->core_effects + effect_id;
+
+	if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
+		err = release_resource(&(iforce->core_effects[effect_id].mod1_chunk));
+
+	if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
+		err = release_resource(&(iforce->core_effects[effect_id].mod2_chunk));
+
+	/*TODO: remember to change that if more FF_MOD* bits are added */
+	core_effect->flags[0] = 0;
+
+	return err;
+}
+
+static int iforce_open(struct input_dev *dev)
+{
+	struct iforce *iforce = dev->private;
+
+	switch (iforce->bus) {
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+		case IFORCE_USB:
+			iforce->irq->dev = iforce->usbdev;
+			if (usb_submit_urb(iforce->irq, GFP_KERNEL))
+				return -EIO;
+			break;
+#endif
+	}
+
+	/* Enable force feedback */
+	iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
+
+	return 0;
+}
+
+static int iforce_flush(struct input_dev *dev, struct file *file)
+{
+	struct iforce *iforce = dev->private;
+	int i;
+
+	/* Erase all effects this process owns */
+	for (i=0; i<dev->ff_effects_max; ++i) {
+
+		if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
+			current->pid == iforce->core_effects[i].owner) {
+
+			/* Stop effect */
+			input_report_ff(dev, i, 0);
+
+			/* Free ressources assigned to effect */
+			if (iforce_erase_effect(dev, i)) {
+				printk(KERN_WARNING "iforce_flush: erase effect %d failed\n", i);
+			}
+		}
+
+	}
+	return 0;
+}
+
+static void iforce_release(struct input_dev *dev)
+{
+	struct iforce *iforce = dev->private;
+	int i;
+
+	/* Check: no effect should be present in memory */
+	for (i=0; i<dev->ff_effects_max; ++i) {
+		if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags))
+			break;
+	}
+	if (i<dev->ff_effects_max) {
+		printk(KERN_WARNING "iforce_release: Device still owns effects\n");
+	}
+
+	/* Disable force feedback playback */
+	iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
+
+	switch (iforce->bus) {
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+		case IFORCE_USB:
+			usb_unlink_urb(iforce->irq);
+
+			/* The device was unplugged before the file
+			 * was released */
+			if (iforce->usbdev == NULL) {
+				iforce_delete_device(iforce);
+				kfree(iforce);
+			}
+		break;
+#endif
+	}
+}
+
+void iforce_delete_device(struct iforce *iforce)
+{
+	switch (iforce->bus) {
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+	case IFORCE_USB:
+		iforce_usb_delete(iforce);
+		break;
+#endif
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+	case IFORCE_232:
+		//TODO: Wait for the last packets to be sent
+		break;
+#endif
+	}
+}
+
+int iforce_init_device(struct iforce *iforce)
+{
+	unsigned char c[] = "CEOV";
+	int i;
+
+	init_waitqueue_head(&iforce->wait);
+	spin_lock_init(&iforce->xmit_lock);
+	init_MUTEX(&iforce->mem_mutex);
+	iforce->xmit.buf = iforce->xmit_data;
+
+	iforce->dev.ff_effects_max = 10;
+
+/*
+ * Input device fields.
+ */
+
+	switch (iforce->bus) {
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+	case IFORCE_USB:
+		iforce->dev.id.bustype = BUS_USB;
+		iforce->dev.dev = &iforce->usbdev->dev;
+		break;
+#endif
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+	case IFORCE_232:
+		iforce->dev.id.bustype = BUS_RS232;
+		iforce->dev.dev = &iforce->serio->dev;
+		break;
+#endif
+	}
+
+	iforce->dev.private = iforce;
+	iforce->dev.name = "Unknown I-Force device";
+	iforce->dev.open = iforce_open;
+	iforce->dev.close = iforce_release;
+	iforce->dev.flush = iforce_flush;
+	iforce->dev.event = iforce_input_event;
+	iforce->dev.upload_effect = iforce_upload_effect;
+	iforce->dev.erase_effect = iforce_erase_effect;
+
+/*
+ * On-device memory allocation.
+ */
+
+	iforce->device_memory.name = "I-Force device effect memory";
+	iforce->device_memory.start = 0;
+	iforce->device_memory.end = 200;
+	iforce->device_memory.flags = IORESOURCE_MEM;
+	iforce->device_memory.parent = NULL;
+	iforce->device_memory.child = NULL;
+	iforce->device_memory.sibling = NULL;
+
+/*
+ * Wait until device ready - until it sends its first response.
+ */
+
+	for (i = 0; i < 20; i++)
+		if (!iforce_get_id_packet(iforce, "O"))
+			break;
+
+	if (i == 20) { /* 5 seconds */
+		printk(KERN_ERR "iforce-main.c: Timeout waiting for response from device.\n");
+		return -1;
+	}
+
+/*
+ * Get device info.
+ */
+
+	if (!iforce_get_id_packet(iforce, "M"))
+		iforce->dev.id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
+	else
+		printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet M\n");
+
+	if (!iforce_get_id_packet(iforce, "P"))
+		iforce->dev.id.product = (iforce->edata[2] << 8) | iforce->edata[1];
+	else
+		printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet P\n");
+
+	if (!iforce_get_id_packet(iforce, "B"))
+		iforce->device_memory.end = (iforce->edata[2] << 8) | iforce->edata[1];
+	else
+		printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet B\n");
+
+	if (!iforce_get_id_packet(iforce, "N"))
+		iforce->dev.ff_effects_max = iforce->edata[1];
+	else
+		printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet N\n");
+
+	/* Check if the device can store more effects than the driver can really handle */
+	if (iforce->dev.ff_effects_max > FF_EFFECTS_MAX) {
+		printk(KERN_WARNING "input??: Device can handle %d effects, but N_EFFECTS_MAX is set to %d in iforce.h\n",
+			iforce->dev.ff_effects_max, FF_EFFECTS_MAX);
+		iforce->dev.ff_effects_max = FF_EFFECTS_MAX;
+	}
+
+/*
+ * Display additional info.
+ */
+
+	for (i = 0; c[i]; i++)
+		if (!iforce_get_id_packet(iforce, c + i))
+			iforce_dump_packet("info", iforce->ecmd, iforce->edata);
+
+/*
+ * Disable spring, enable force feedback.
+ * FIXME: We should use iforce_set_autocenter() et al here.
+ */
+
+	iforce_send_packet(iforce, FF_CMD_AUTOCENTER, "\004\000");
+
+/*
+ * Find appropriate device entry
+ */
+
+	for (i = 0; iforce_device[i].idvendor; i++)
+		if (iforce_device[i].idvendor == iforce->dev.id.vendor &&
+		    iforce_device[i].idproduct == iforce->dev.id.product)
+			break;
+
+	iforce->type = iforce_device + i;
+	iforce->dev.name = iforce->type->name;
+
+/*
+ * Set input device bitfields and ranges.
+ */
+
+	iforce->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_FF) | BIT(EV_FF_STATUS);
+
+	for (i = 0; iforce->type->btn[i] >= 0; i++) {
+		signed short t = iforce->type->btn[i];
+		set_bit(t, iforce->dev.keybit);
+	}
+	set_bit(BTN_DEAD, iforce->dev.keybit);
+
+	for (i = 0; iforce->type->abs[i] >= 0; i++) {
+
+		signed short t = iforce->type->abs[i];
+		set_bit(t, iforce->dev.absbit);
+
+		switch (t) {
+
+			case ABS_X:
+			case ABS_Y:
+			case ABS_WHEEL:
+
+				iforce->dev.absmax[t] =  1920;
+				iforce->dev.absmin[t] = -1920;
+				iforce->dev.absflat[t] = 128;
+				iforce->dev.absfuzz[t] = 16;
+
+				set_bit(t, iforce->dev.ffbit);
+				break;
+
+			case ABS_THROTTLE:
+			case ABS_GAS:
+			case ABS_BRAKE:
+
+				iforce->dev.absmax[t] = 255;
+				iforce->dev.absmin[t] = 0;
+				break;
+
+			case ABS_RUDDER:
+
+				iforce->dev.absmax[t] = 127;
+				iforce->dev.absmin[t] = -128;
+				break;
+
+			case ABS_HAT0X:
+			case ABS_HAT0Y:
+		        case ABS_HAT1X:
+		        case ABS_HAT1Y:
+				iforce->dev.absmax[t] =  1;
+				iforce->dev.absmin[t] = -1;
+				break;
+		}
+	}
+
+	for (i = 0; iforce->type->ff[i] >= 0; i++)
+		set_bit(iforce->type->ff[i], iforce->dev.ffbit);
+
+/*
+ * Register input device.
+ */
+
+	input_register_device(&iforce->dev);
+
+	printk(KERN_DEBUG "iforce->dev.open = %p\n", iforce->dev.open);
+
+	printk(KERN_INFO "input: %s [%d effects, %ld bytes memory]\n",
+		iforce->dev.name, iforce->dev.ff_effects_max,
+		iforce->device_memory.end);
+
+	return 0;
+}
+
+static int __init iforce_init(void)
+{
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+	usb_register(&iforce_usb_driver);
+#endif
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+	serio_register_driver(&iforce_serio_drv);
+#endif
+	return 0;
+}
+
+static void __exit iforce_exit(void)
+{
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+	usb_deregister(&iforce_usb_driver);
+#endif
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+	serio_unregister_driver(&iforce_serio_drv);
+#endif
+}
+
+module_init(iforce_init);
+module_exit(iforce_exit);