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Merge branch 'iforce' into next

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Bring in improvements to driver for I-Force devices.
This commit is contained in:
Dmitry Torokhov 2019-06-29 23:33:37 -07:00
commit 90b9b0d5b3
8 changed files with 427 additions and 413 deletions
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8
drivers/input/joystick/iforce/Kconfig
View File

@ -13,15 +13,15 @@ config JOYSTICK_IFORCE
module will be called iforce.
config JOYSTICK_IFORCE_USB
bool "I-Force USB joysticks and wheels"
depends on JOYSTICK_IFORCE && (JOYSTICK_IFORCE=m || USB=y) && USB
tristate "I-Force USB joysticks and wheels"
depends on JOYSTICK_IFORCE && USB
help
Say Y here if you have an I-Force joystick or steering wheel
connected to your USB port.
config JOYSTICK_IFORCE_232
bool "I-Force Serial joysticks and wheels"
depends on JOYSTICK_IFORCE && (JOYSTICK_IFORCE=m || SERIO=y) && SERIO
tristate "I-Force Serial joysticks and wheels"
depends on JOYSTICK_IFORCE && SERIO
help
Say Y here if you have an I-Force joystick or steering wheel
connected to your serial (COM) port.

7
drivers/input/joystick/iforce/Makefile
View File

@ -4,8 +4,7 @@
# By Johann Deneux <johann.deneux@gmail.com>
#
obj-$(CONFIG_JOYSTICK_IFORCE) += iforce.o
obj-$(CONFIG_JOYSTICK_IFORCE) += iforce.o
iforce-y := iforce-ff.o iforce-main.o iforce-packets.o
iforce-$(CONFIG_JOYSTICK_IFORCE_232) += iforce-serio.o
iforce-$(CONFIG_JOYSTICK_IFORCE_USB) += iforce-usb.o
obj-$(CONFIG_JOYSTICK_IFORCE_232) += iforce-serio.o
obj-$(CONFIG_JOYSTICK_IFORCE_USB) += iforce-usb.o

18
drivers/input/joystick/iforce/iforce-ff.c
View File

@ -384,12 +384,12 @@ int iforce_upload_periodic(struct iforce *iforce, struct ff_effect *effect, stru
}
switch (effect->u.periodic.waveform) {
case FF_SQUARE: wave_code = 0x20; break;
case FF_TRIANGLE: wave_code = 0x21; break;
case FF_SINE: wave_code = 0x22; break;
case FF_SAW_UP: wave_code = 0x23; break;
case FF_SAW_DOWN: wave_code = 0x24; break;
default: wave_code = 0x20; break;
case FF_SQUARE: wave_code = 0x20; break;
case FF_TRIANGLE: wave_code = 0x21; break;
case FF_SINE: wave_code = 0x22; break;
case FF_SAW_UP: wave_code = 0x23; break;
case FF_SAW_DOWN: wave_code = 0x24; break;
default: wave_code = 0x20; break;
}
if (!old || need_core(old, effect)) {
@ -488,9 +488,9 @@ int iforce_upload_condition(struct iforce *iforce, struct ff_effect *effect, str
int core_err = 0;
switch (effect->type) {
case FF_SPRING: type = 0x40; break;
case FF_DAMPER: type = 0x41; break;
default: return -1;
case FF_SPRING: type = 0x40; break;
case FF_DAMPER: type = 0x41; break;
default: return -1;
}
if (!old || need_condition_modifier(iforce, old, effect)) {

178
drivers/input/joystick/iforce/iforce-main.c
View File

@ -21,10 +21,11 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <asm/unaligned.h>
#include "iforce.h"
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
MODULE_DESCRIPTION("USB/RS232 I-Force joysticks and wheels driver");
MODULE_DESCRIPTION("Core I-Force joysticks and wheels driver");
MODULE_LICENSE("GPL");
static signed short btn_joystick[] =
@ -67,6 +68,7 @@ static struct iforce_device iforce_device[] = {
{ 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
{ 0x061c, 0xc0a4, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce }, //?
{ 0x061c, 0xc084, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce },
{ 0x06a3, 0xff04, "Saitek R440 Force Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
{ 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback", btn_wheel, abs_wheel, ff_iforce }, //?
{ 0x06f8, 0x0001, "Guillemot Jet Leader Force Feedback", btn_joystick, abs_joystick_rudder, ff_iforce },
{ 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
@ -132,22 +134,21 @@ static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect,
* Upload the effect
*/
switch (effect->type) {
case FF_PERIODIC:
ret = iforce_upload_periodic(iforce, effect, old);
break;
case FF_PERIODIC:
ret = iforce_upload_periodic(iforce, effect, old);
break;
case FF_CONSTANT:
ret = iforce_upload_constant(iforce, effect, old);
break;
case FF_CONSTANT:
ret = iforce_upload_constant(iforce, effect, old);
break;
case FF_SPRING:
case FF_DAMPER:
ret = iforce_upload_condition(iforce, effect, old);
break;
case FF_SPRING:
case FF_DAMPER:
ret = iforce_upload_condition(iforce, effect, old);
break;
default:
return -EINVAL;
default:
return -EINVAL;
}
if (ret == 0) {
@ -185,15 +186,7 @@ static int iforce_open(struct input_dev *dev)
{
struct iforce *iforce = input_get_drvdata(dev);
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
}
iforce->xport_ops->start_io(iforce);
if (test_bit(EV_FF, dev->evbit)) {
/* Enable force feedback */
@ -226,27 +219,17 @@ static void iforce_close(struct input_dev *dev)
!test_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags));
}
switch (iforce->bus) {
#ifdef CONFIG_JOYSTICK_IFORCE_USB
case IFORCE_USB:
usb_kill_urb(iforce->irq);
usb_kill_urb(iforce->out);
usb_kill_urb(iforce->ctrl);
break;
#endif
#ifdef CONFIG_JOYSTICK_IFORCE_232
case IFORCE_232:
//TODO: Wait for the last packets to be sent
break;
#endif
}
iforce->xport_ops->stop_io(iforce);
}
int iforce_init_device(struct iforce *iforce)
int iforce_init_device(struct device *parent, u16 bustype,
struct iforce *iforce)
{
struct input_dev *input_dev;
struct ff_device *ff;
unsigned char c[] = "CEOV";
u8 c[] = "CEOV";
u8 buf[IFORCE_MAX_LENGTH];
size_t len;
int i, error;
int ff_effects = 0;
@ -264,20 +247,8 @@ int iforce_init_device(struct iforce *iforce)
* Input device fields.
*/
switch (iforce->bus) {
#ifdef CONFIG_JOYSTICK_IFORCE_USB
case IFORCE_USB:
input_dev->id.bustype = BUS_USB;
input_dev->dev.parent = &iforce->usbdev->dev;
break;
#endif
#ifdef CONFIG_JOYSTICK_IFORCE_232
case IFORCE_232:
input_dev->id.bustype = BUS_RS232;
input_dev->dev.parent = &iforce->serio->dev;
break;
#endif
}
input_dev->id.bustype = bustype;
input_dev->dev.parent = parent;
input_set_drvdata(input_dev, iforce);
@ -302,7 +273,7 @@ int iforce_init_device(struct iforce *iforce)
*/
for (i = 0; i < 20; i++)
if (!iforce_get_id_packet(iforce, "O"))
if (!iforce_get_id_packet(iforce, 'O', buf, &len))
break;
if (i == 20) { /* 5 seconds */
@ -316,23 +287,23 @@ int iforce_init_device(struct iforce *iforce)
* Get device info.
*/
if (!iforce_get_id_packet(iforce, "M"))
input_dev->id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
if (!iforce_get_id_packet(iforce, 'M', buf, &len) || len < 3)
input_dev->id.vendor = get_unaligned_le16(buf + 1);
else
dev_warn(&iforce->dev->dev, "Device does not respond to id packet M\n");
if (!iforce_get_id_packet(iforce, "P"))
input_dev->id.product = (iforce->edata[2] << 8) | iforce->edata[1];
if (!iforce_get_id_packet(iforce, 'P', buf, &len) || len < 3)
input_dev->id.product = get_unaligned_le16(buf + 1);
else
dev_warn(&iforce->dev->dev, "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];
if (!iforce_get_id_packet(iforce, 'B', buf, &len) || len < 3)
iforce->device_memory.end = get_unaligned_le16(buf + 1);
else
dev_warn(&iforce->dev->dev, "Device does not respond to id packet B\n");
if (!iforce_get_id_packet(iforce, "N"))
ff_effects = iforce->edata[1];
if (!iforce_get_id_packet(iforce, 'N', buf, &len) || len < 2)
ff_effects = buf[1];
else
dev_warn(&iforce->dev->dev, "Device does not respond to id packet N\n");
@ -348,8 +319,9 @@ int iforce_init_device(struct iforce *iforce)
*/
for (i = 0; c[i]; i++)
if (!iforce_get_id_packet(iforce, c + i))
iforce_dump_packet(iforce, "info", iforce->ecmd, iforce->edata);
if (!iforce_get_id_packet(iforce, c[i], buf, &len))
iforce_dump_packet(iforce, "info",
(FF_CMD_QUERY & 0xff00) | len, buf);
/*
* Disable spring, enable force feedback.
@ -383,34 +355,29 @@ int iforce_init_device(struct iforce *iforce)
signed short t = iforce->type->abs[i];
switch (t) {
case ABS_X:
case ABS_Y:
case ABS_WHEEL:
input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
set_bit(t, input_dev->ffbit);
break;
case ABS_X:
case ABS_Y:
case ABS_WHEEL:
case ABS_THROTTLE:
case ABS_GAS:
case ABS_BRAKE:
input_set_abs_params(input_dev, t, 0, 255, 0, 0);
break;
input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
set_bit(t, input_dev->ffbit);
break;
case ABS_RUDDER:
input_set_abs_params(input_dev, t, -128, 127, 0, 0);
break;
case ABS_THROTTLE:
case ABS_GAS:
case ABS_BRAKE:
input_set_abs_params(input_dev, t, 0, 255, 0, 0);
break;
case ABS_RUDDER:
input_set_abs_params(input_dev, t, -128, 127, 0, 0);
break;
case ABS_HAT0X:
case ABS_HAT0Y:
case ABS_HAT1X:
case ABS_HAT1Y:
input_set_abs_params(input_dev, t, -1, 1, 0, 0);
break;
case ABS_HAT0X:
case ABS_HAT0Y:
case ABS_HAT1X:
case ABS_HAT1Y:
input_set_abs_params(input_dev, t, -1, 1, 0, 0);
break;
}
}
@ -443,35 +410,4 @@ int iforce_init_device(struct iforce *iforce)
fail: input_free_device(input_dev);
return error;
}
static int __init iforce_init(void)
{
int err = 0;
#ifdef CONFIG_JOYSTICK_IFORCE_USB
err = usb_register(&iforce_usb_driver);
if (err)
return err;
#endif
#ifdef CONFIG_JOYSTICK_IFORCE_232
err = serio_register_driver(&iforce_serio_drv);
#ifdef CONFIG_JOYSTICK_IFORCE_USB
if (err)
usb_deregister(&iforce_usb_driver);
#endif
#endif
return err;
}
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);
EXPORT_SYMBOL(iforce_init_device);

223
drivers/input/joystick/iforce/iforce-packets.c
View File

@ -21,6 +21,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <asm/unaligned.h>
#include "iforce.h"
static struct {
@ -91,27 +92,12 @@ int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data)
/*
* If necessary, start the transmission
*/
switch (iforce->bus) {
if (empty)
iforce->xport_ops->xmit(iforce);
#ifdef CONFIG_JOYSTICK_IFORCE_232
case IFORCE_232:
if (empty)
iforce_serial_xmit(iforce);
break;
#endif
#ifdef CONFIG_JOYSTICK_IFORCE_USB
case IFORCE_USB:
if (iforce->usbdev && empty &&
!test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags)) {
iforce_usb_xmit(iforce);
}
break;
#endif
}
return 0;
}
EXPORT_SYMBOL(iforce_send_packet);
/* Start or stop an effect */
int iforce_control_playback(struct iforce* iforce, u16 id, unsigned int value)
@ -145,157 +131,96 @@ static int mark_core_as_ready(struct iforce *iforce, unsigned short addr)
return -1;
}
void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data)
static void iforce_report_hats_buttons(struct iforce *iforce, u8 *data)
{
struct input_dev *dev = iforce->dev;
int i;
static int being_used = 0;
if (being_used)
dev_warn(&iforce->dev->dev,
"re-entrant call to iforce_process %d\n", being_used);
being_used++;
input_report_abs(dev, ABS_HAT0X, iforce_hat_to_axis[data[6] >> 4].x);
input_report_abs(dev, ABS_HAT0Y, iforce_hat_to_axis[data[6] >> 4].y);
#ifdef CONFIG_JOYSTICK_IFORCE_232
if (HI(iforce->expect_packet) == HI(cmd)) {
iforce->expect_packet = 0;
iforce->ecmd = cmd;
memcpy(iforce->edata, data, IFORCE_MAX_LENGTH);
for (i = 0; iforce->type->btn[i] >= 0; i++)
input_report_key(dev, iforce->type->btn[i],
data[(i >> 3) + 5] & (1 << (i & 7)));
/* If there are untouched bits left, interpret them as the second hat */
if (i <= 8) {
u8 btns = data[6];
if (test_bit(ABS_HAT1X, dev->absbit)) {
if (btns & BIT(3))
input_report_abs(dev, ABS_HAT1X, -1);
else if (btns & BIT(1))
input_report_abs(dev, ABS_HAT1X, 1);
else
input_report_abs(dev, ABS_HAT1X, 0);
}
if (test_bit(ABS_HAT1Y, dev->absbit)) {
if (btns & BIT(0))
input_report_abs(dev, ABS_HAT1Y, -1);
else if (btns & BIT(2))
input_report_abs(dev, ABS_HAT1Y, 1);
else
input_report_abs(dev, ABS_HAT1Y, 0);
}
}
#endif
wake_up(&iforce->wait);
if (!iforce->type) {
being_used--;
return;
}
switch (HI(cmd)) {
case 0x01: /* joystick position data */
case 0x03: /* wheel position data */
if (HI(cmd) == 1) {
input_report_abs(dev, ABS_X, (__s16) (((__s16)data[1] << 8) | data[0]));
input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[3] << 8) | data[2]));
input_report_abs(dev, ABS_THROTTLE, 255 - data[4]);
if (LO(cmd) >= 8 && test_bit(ABS_RUDDER ,dev->absbit))
input_report_abs(dev, ABS_RUDDER, (__s8)data[7]);
} else {
input_report_abs(dev, ABS_WHEEL, (__s16) (((__s16)data[1] << 8) | data[0]));
input_report_abs(dev, ABS_GAS, 255 - data[2]);
input_report_abs(dev, ABS_BRAKE, 255 - data[3]);
}
input_report_abs(dev, ABS_HAT0X, iforce_hat_to_axis[data[6] >> 4].x);
input_report_abs(dev, ABS_HAT0Y, iforce_hat_to_axis[data[6] >> 4].y);
for (i = 0; iforce->type->btn[i] >= 0; i++)
input_report_key(dev, iforce->type->btn[i], data[(i >> 3) + 5] & (1 << (i & 7)));
/* If there are untouched bits left, interpret them as the second hat */
if (i <= 8) {
int btns = data[6];
if (test_bit(ABS_HAT1X, dev->absbit)) {
if (btns & 8) input_report_abs(dev, ABS_HAT1X, -1);
else if (btns & 2) input_report_abs(dev, ABS_HAT1X, 1);
else input_report_abs(dev, ABS_HAT1X, 0);
}
if (test_bit(ABS_HAT1Y, dev->absbit)) {
if (btns & 1) input_report_abs(dev, ABS_HAT1Y, -1);
else if (btns & 4) input_report_abs(dev, ABS_HAT1Y, 1);
else input_report_abs(dev, ABS_HAT1Y, 0);
}
}
input_sync(dev);
break;
case 0x02: /* status report */
input_report_key(dev, BTN_DEAD, data[0] & 0x02);
input_sync(dev);
/* Check if an effect was just started or stopped */
i = data[1] & 0x7f;
if (data[1] & 0x80) {
if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
/* Report play event */
input_report_ff_status(dev, i, FF_STATUS_PLAYING);
}
} else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
/* Report stop event */
input_report_ff_status(dev, i, FF_STATUS_STOPPED);
}
if (LO(cmd) > 3) {
int j;
for (j = 3; j < LO(cmd); j += 2)
mark_core_as_ready(iforce, data[j] | (data[j+1]<<8));
}
break;
}
being_used--;
}
int iforce_get_id_packet(struct iforce *iforce, char *packet)
void iforce_process_packet(struct iforce *iforce,
u8 packet_id, u8 *data, size_t len)
{
switch (iforce->bus) {
struct input_dev *dev = iforce->dev;
int i, j;
case IFORCE_USB: {
#ifdef CONFIG_JOYSTICK_IFORCE_USB
int status;
switch (packet_id) {
iforce->cr.bRequest = packet[0];
iforce->ctrl->dev = iforce->usbdev;
case 0x01: /* joystick position data */
input_report_abs(dev, ABS_X,
(__s16) get_unaligned_le16(data));
input_report_abs(dev, ABS_Y,
(__s16) get_unaligned_le16(data + 2));
input_report_abs(dev, ABS_THROTTLE, 255 - data[4]);
status = usb_submit_urb(iforce->ctrl, GFP_KERNEL);
if (status) {
dev_err(&iforce->intf->dev,
"usb_submit_urb failed %d\n", status);
return -1;
}
if (len >= 8 && test_bit(ABS_RUDDER ,dev->absbit))
input_report_abs(dev, ABS_RUDDER, (__s8)data[7]);
wait_event_interruptible_timeout(iforce->wait,
iforce->ctrl->status != -EINPROGRESS, HZ);
iforce_report_hats_buttons(iforce, data);
if (iforce->ctrl->status) {
dev_dbg(&iforce->intf->dev,
"iforce->ctrl->status = %d\n",
iforce->ctrl->status);
usb_unlink_urb(iforce->ctrl);
return -1;
}
#else
printk(KERN_DEBUG "iforce_get_id_packet: iforce->bus = USB!\n");
#endif
}
input_sync(dev);
break;
case IFORCE_232:
case 0x03: /* wheel position data */
input_report_abs(dev, ABS_WHEEL,
(__s16) get_unaligned_le16(data));
input_report_abs(dev, ABS_GAS, 255 - data[2]);
input_report_abs(dev, ABS_BRAKE, 255 - data[3]);
#ifdef CONFIG_JOYSTICK_IFORCE_232
iforce->expect_packet = FF_CMD_QUERY;
iforce_send_packet(iforce, FF_CMD_QUERY, packet);
iforce_report_hats_buttons(iforce, data);
wait_event_interruptible_timeout(iforce->wait,
!iforce->expect_packet, HZ);
if (iforce->expect_packet) {
iforce->expect_packet = 0;
return -1;
}
#else
dev_err(&iforce->dev->dev,
"iforce_get_id_packet: iforce->bus = SERIO!\n");
#endif
input_sync(dev);
break;
default:
dev_err(&iforce->dev->dev,
"iforce_get_id_packet: iforce->bus = %d\n",
iforce->bus);
case 0x02: /* status report */
input_report_key(dev, BTN_DEAD, data[0] & 0x02);
input_sync(dev);
/* Check if an effect was just started or stopped */
i = data[1] & 0x7f;
if (data[1] & 0x80) {
if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
/* Report play event */
input_report_ff_status(dev, i, FF_STATUS_PLAYING);
}
} else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
/* Report stop event */
input_report_ff_status(dev, i, FF_STATUS_STOPPED);
}
for (j = 3; j < len; j += 2)
mark_core_as_ready(iforce, get_unaligned_le16(data + j));
break;
}
return -(iforce->edata[0] != packet[0]);
}
EXPORT_SYMBOL(iforce_process_packet);

161
drivers/input/joystick/iforce/iforce-serio.c
View File

@ -21,10 +21,26 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/serio.h>
#include "iforce.h"
void iforce_serial_xmit(struct iforce *iforce)
struct iforce_serio {
struct iforce iforce;
struct serio *serio;
int idx, pkt, len, id;
u8 csum;
u8 expect_packet;
u8 cmd_response[IFORCE_MAX_LENGTH];
u8 cmd_response_len;
u8 data_in[IFORCE_MAX_LENGTH];
};
static void iforce_serio_xmit(struct iforce *iforce)
{
struct iforce_serio *iforce_serio = container_of(iforce,
struct iforce_serio,
iforce);
unsigned char cs;
int i;
unsigned long flags;
@ -45,19 +61,20 @@ again:
cs = 0x2b;
serio_write(iforce->serio, 0x2b);
serio_write(iforce_serio->serio, 0x2b);
serio_write(iforce->serio, iforce->xmit.buf[iforce->xmit.tail]);
serio_write(iforce_serio->serio, iforce->xmit.buf[iforce->xmit.tail]);
cs ^= iforce->xmit.buf[iforce->xmit.tail];
XMIT_INC(iforce->xmit.tail, 1);
for (i=iforce->xmit.buf[iforce->xmit.tail]; i >= 0; --i) {
serio_write(iforce->serio, iforce->xmit.buf[iforce->xmit.tail]);
serio_write(iforce_serio->serio,
iforce->xmit.buf[iforce->xmit.tail]);
cs ^= iforce->xmit.buf[iforce->xmit.tail];
XMIT_INC(iforce->xmit.tail, 1);
}
serio_write(iforce->serio, cs);
serio_write(iforce_serio->serio, cs);
if (test_and_clear_bit(IFORCE_XMIT_AGAIN, iforce->xmit_flags))
goto again;
@ -67,54 +84,118 @@ again:
spin_unlock_irqrestore(&iforce->xmit_lock, flags);
}
static int iforce_serio_get_id(struct iforce *iforce, u8 id,
u8 *response_data, size_t *response_len)
{
struct iforce_serio *iforce_serio = container_of(iforce,
struct iforce_serio,
iforce);
iforce_serio->expect_packet = HI(FF_CMD_QUERY);
iforce_serio->cmd_response_len = 0;
iforce_send_packet(iforce, FF_CMD_QUERY, &id);
wait_event_interruptible_timeout(iforce->wait,
!iforce_serio->expect_packet, HZ);
if (iforce_serio->expect_packet) {
iforce_serio->expect_packet = 0;
return -ETIMEDOUT;
}
if (iforce_serio->cmd_response[0] != id)
return -EIO;
memcpy(response_data, iforce_serio->cmd_response,
iforce_serio->cmd_response_len);
*response_len = iforce_serio->cmd_response_len;
return 0;
}
static int iforce_serio_start_io(struct iforce *iforce)
{
/* No special handling required */
return 0;
}
static void iforce_serio_stop_io(struct iforce *iforce)
{
//TODO: Wait for the last packets to be sent
}
static const struct iforce_xport_ops iforce_serio_xport_ops = {
.xmit = iforce_serio_xmit,
.get_id = iforce_serio_get_id,
.start_io = iforce_serio_start_io,
.stop_io = iforce_serio_stop_io,
};
static void iforce_serio_write_wakeup(struct serio *serio)
{
struct iforce *iforce = serio_get_drvdata(serio);
iforce_serial_xmit(iforce);
iforce_serio_xmit(iforce);
}
static irqreturn_t iforce_serio_irq(struct serio *serio,
unsigned char data, unsigned int flags)
unsigned char data, unsigned int flags)
{
struct iforce *iforce = serio_get_drvdata(serio);
struct iforce_serio *iforce_serio = serio_get_drvdata(serio);
struct iforce *iforce = &iforce_serio->iforce;
if (!iforce->pkt) {
if (!iforce_serio->pkt) {
if (data == 0x2b)
iforce->pkt = 1;
iforce_serio->pkt = 1;
goto out;
}
if (!iforce->id) {
if (!iforce_serio->id) {
if (data > 3 && data != 0xff)
iforce->pkt = 0;
iforce_serio->pkt = 0;
else
iforce->id = data;
iforce_serio->id = data;
goto out;
}
if (!iforce->len) {
if (!iforce_serio->len) {
if (data > IFORCE_MAX_LENGTH) {
iforce->pkt = 0;
iforce->id = 0;
iforce_serio->pkt = 0;
iforce_serio->id = 0;
} else {
iforce->len = data;
iforce_serio->len = data;
}
goto out;
}
if (iforce->idx < iforce->len) {
iforce->csum += iforce->data[iforce->idx++] = data;
if (iforce_serio->idx < iforce_serio->len) {
iforce_serio->data_in[iforce_serio->idx++] = data;
iforce_serio->csum += data;
goto out;
}
if (iforce->idx == iforce->len) {
iforce_process_packet(iforce, (iforce->id << 8) | iforce->idx, iforce->data);
iforce->pkt = 0;
iforce->id = 0;
iforce->len = 0;
iforce->idx = 0;
iforce->csum = 0;
if (iforce_serio->idx == iforce_serio->len) {
/* Handle command completion */
if (iforce_serio->expect_packet == iforce_serio->id) {
iforce_serio->expect_packet = 0;
memcpy(iforce_serio->cmd_response,
iforce_serio->data_in, IFORCE_MAX_LENGTH);
iforce_serio->cmd_response_len = iforce_serio->len;
/* Signal that command is done */
wake_up(&iforce->wait);
} else if (likely(iforce->type)) {
iforce_process_packet(iforce, iforce_serio->id,
iforce_serio->data_in,
iforce_serio->len);
}
iforce_serio->pkt = 0;
iforce_serio->id = 0;
iforce_serio->len = 0;
iforce_serio->idx = 0;
iforce_serio->csum = 0;
}
out:
return IRQ_HANDLED;
@ -122,23 +203,23 @@ out:
static int iforce_serio_connect(struct serio *serio, struct serio_driver *drv)
{
struct iforce *iforce;
struct iforce_serio *iforce_serio;
int err;
iforce = kzalloc(sizeof(struct iforce), GFP_KERNEL);
if (!iforce)
iforce_serio = kzalloc(sizeof(*iforce_serio), GFP_KERNEL);
if (!iforce_serio)
return -ENOMEM;
iforce->bus = IFORCE_232;
iforce->serio = serio;
iforce_serio->iforce.xport_ops = &iforce_serio_xport_ops;
serio_set_drvdata(serio, iforce);
iforce_serio->serio = serio;
serio_set_drvdata(serio, iforce_serio);
err = serio_open(serio, drv);
if (err)
goto fail1;
err = iforce_init_device(iforce);
err = iforce_init_device(&serio->dev, BUS_RS232, &iforce_serio->iforce);
if (err)
goto fail2;
@ -146,18 +227,18 @@ static int iforce_serio_connect(struct serio *serio, struct serio_driver *drv)
fail2: serio_close(serio);
fail1: serio_set_drvdata(serio, NULL);
kfree(iforce);
kfree(iforce_serio);
return err;
}
static void iforce_serio_disconnect(struct serio *serio)
{
struct iforce *iforce = serio_get_drvdata(serio);
struct iforce_serio *iforce_serio = serio_get_drvdata(serio);
input_unregister_device(iforce->dev);
input_unregister_device(iforce_serio->iforce.dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
kfree(iforce);
kfree(iforce_serio);
}
static const struct serio_device_id iforce_serio_ids[] = {
@ -183,3 +264,9 @@ struct serio_driver iforce_serio_drv = {
.connect = iforce_serio_connect,
.disconnect = iforce_serio_disconnect,
};
module_serio_driver(iforce_serio_drv);
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
MODULE_DESCRIPTION("RS232 I-Force joysticks and wheels driver");
MODULE_LICENSE("GPL");

192
drivers/input/joystick/iforce/iforce-usb.c
View File

@ -21,10 +21,24 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/usb.h>
#include "iforce.h"
void iforce_usb_xmit(struct iforce *iforce)
struct iforce_usb {
struct iforce iforce;
struct usb_device *usbdev;
struct usb_interface *intf;
struct urb *irq, *out;
u8 data_in[IFORCE_MAX_LENGTH] ____cacheline_aligned;
u8 data_out[IFORCE_MAX_LENGTH] ____cacheline_aligned;
};
static void __iforce_usb_xmit(struct iforce *iforce)
{
struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
iforce);
int n, c;
unsigned long flags;
@ -36,31 +50,32 @@ void iforce_usb_xmit(struct iforce *iforce)
return;
}
((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
((char *)iforce_usb->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
XMIT_INC(iforce->xmit.tail, 1);
n = iforce->xmit.buf[iforce->xmit.tail];
XMIT_INC(iforce->xmit.tail, 1);
iforce->out->transfer_buffer_length = n + 1;
iforce->out->dev = iforce->usbdev;
iforce_usb->out->transfer_buffer_length = n + 1;
iforce_usb->out->dev = iforce_usb->usbdev;
/* Copy rest of data then */
c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
if (n < c) c=n;
memcpy(iforce->out->transfer_buffer + 1,
memcpy(iforce_usb->out->transfer_buffer + 1,
&iforce->xmit.buf[iforce->xmit.tail],
c);
if (n != c) {
memcpy(iforce->out->transfer_buffer + 1 + c,
memcpy(iforce_usb->out->transfer_buffer + 1 + c,
&iforce->xmit.buf[0],
n-c);
}
XMIT_INC(iforce->xmit.tail, n);
if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) {
if ( (n=usb_submit_urb(iforce_usb->out, GFP_ATOMIC)) ) {
clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
dev_warn(&iforce->intf->dev, "usb_submit_urb failed %d\n", n);
dev_warn(&iforce_usb->intf->dev,
"usb_submit_urb failed %d\n", n);
}
/* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
@ -69,10 +84,77 @@ void iforce_usb_xmit(struct iforce *iforce)
spin_unlock_irqrestore(&iforce->xmit_lock, flags);
}
static void iforce_usb_xmit(struct iforce *iforce)
{
if (!test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags))
__iforce_usb_xmit(iforce);
}
static int iforce_usb_get_id(struct iforce *iforce, u8 id,
u8 *response_data, size_t *response_len)
{
struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
iforce);
u8 *buf;
int status;
buf = kmalloc(IFORCE_MAX_LENGTH, GFP_KERNEL);
if (!buf)
return -ENOMEM;
status = usb_control_msg(iforce_usb->usbdev,
usb_rcvctrlpipe(iforce_usb->usbdev, 0),
id,
USB_TYPE_VENDOR | USB_DIR_IN |
USB_RECIP_INTERFACE,
0, 0, buf, IFORCE_MAX_LENGTH, HZ);
if (status < 0) {
dev_err(&iforce_usb->intf->dev,
"usb_submit_urb failed: %d\n", status);
} else if (buf[0] != id) {
status = -EIO;
} else {
memcpy(response_data, buf, status);
*response_len = status;
status = 0;
}
kfree(buf);
return status;
}
static int iforce_usb_start_io(struct iforce *iforce)
{
struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
iforce);
if (usb_submit_urb(iforce_usb->irq, GFP_KERNEL))
return -EIO;
return 0;
}
static void iforce_usb_stop_io(struct iforce *iforce)
{
struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
iforce);
usb_kill_urb(iforce_usb->irq);
usb_kill_urb(iforce_usb->out);
}
static const struct iforce_xport_ops iforce_usb_xport_ops = {
.xmit = iforce_usb_xmit,
.get_id = iforce_usb_get_id,
.start_io = iforce_usb_start_io,
.stop_io = iforce_usb_stop_io,
};
static void iforce_usb_irq(struct urb *urb)
{
struct iforce *iforce = urb->context;
struct device *dev = &iforce->intf->dev;
struct iforce_usb *iforce_usb = urb->context;
struct iforce *iforce = &iforce_usb->iforce;
struct device *dev = &iforce_usb->intf->dev;
int status;
switch (urb->status) {
@ -92,11 +174,11 @@ static void iforce_usb_irq(struct urb *urb)
goto exit;
}
iforce_process_packet(iforce,
(iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1);
iforce_process_packet(iforce, iforce_usb->data_in[0],
iforce_usb->data_in + 1, urb->actual_length - 1);
exit:
status = usb_submit_urb (urb, GFP_ATOMIC);
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status)
dev_err(dev, "%s - usb_submit_urb failed with result %d\n",
__func__, status);
@ -104,35 +186,28 @@ exit:
static void iforce_usb_out(struct urb *urb)
{
struct iforce *iforce = urb->context;
struct iforce_usb *iforce_usb = urb->context;
struct iforce *iforce = &iforce_usb->iforce;
if (urb->status) {
clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
dev_dbg(&iforce->intf->dev, "urb->status %d, exiting\n",
dev_dbg(&iforce_usb->intf->dev, "urb->status %d, exiting\n",
urb->status);
return;
}
iforce_usb_xmit(iforce);
__iforce_usb_xmit(iforce);
wake_up(&iforce->wait);
}
static void iforce_usb_ctrl(struct urb *urb)
{
struct iforce *iforce = urb->context;
if (urb->status) return;
iforce->ecmd = 0xff00 | urb->actual_length;
wake_up(&iforce->wait);
}
static int iforce_usb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *dev = interface_to_usbdev(intf);
struct usb_host_interface *interface;
struct usb_endpoint_descriptor *epirq, *epout;
struct iforce *iforce;
struct iforce_usb *iforce_usb;
int err = -ENOMEM;
interface = intf->cur_altsetting;
@ -143,48 +218,45 @@ static int iforce_usb_probe(struct usb_interface *intf,
epirq = &interface->endpoint[0].desc;
epout = &interface->endpoint[1].desc;
if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL)))
iforce_usb = kzalloc(sizeof(*iforce_usb), GFP_KERNEL);
if (!iforce_usb)
goto fail;
if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL)))
iforce_usb->irq = usb_alloc_urb(0, GFP_KERNEL);
if (!iforce_usb->irq)
goto fail;
if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL)))
iforce_usb->out = usb_alloc_urb(0, GFP_KERNEL);
if (!iforce_usb->out)
goto fail;
if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL)))
goto fail;
iforce_usb->iforce.xport_ops = &iforce_usb_xport_ops;
iforce->bus = IFORCE_USB;
iforce->usbdev = dev;
iforce->intf = intf;
iforce_usb->usbdev = dev;
iforce_usb->intf = intf;
iforce->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE;
iforce->cr.wIndex = 0;
iforce->cr.wLength = cpu_to_le16(16);
usb_fill_int_urb(iforce_usb->irq, dev,
usb_rcvintpipe(dev, epirq->bEndpointAddress),
iforce_usb->data_in, sizeof(iforce_usb->data_in),
iforce_usb_irq, iforce_usb, epirq->bInterval);
usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval);
usb_fill_int_urb(iforce_usb->out, dev,
usb_sndintpipe(dev, epout->bEndpointAddress),
iforce_usb->data_out, sizeof(iforce_usb->data_out),
iforce_usb_out, iforce_usb, epout->bInterval);
usb_fill_int_urb(iforce->out, dev, usb_sndintpipe(dev, epout->bEndpointAddress),
iforce + 1, 32, iforce_usb_out, iforce, epout->bInterval);
usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0),
(void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce);
err = iforce_init_device(iforce);
err = iforce_init_device(&intf->dev, BUS_USB, &iforce_usb->iforce);
if (err)
goto fail;
usb_set_intfdata(intf, iforce);
usb_set_intfdata(intf, iforce_usb);
return 0;
fail:
if (iforce) {
usb_free_urb(iforce->irq);
usb_free_urb(iforce->out);
usb_free_urb(iforce->ctrl);
kfree(iforce);
if (iforce_usb) {
usb_free_urb(iforce_usb->irq);
usb_free_urb(iforce_usb->out);
kfree(iforce_usb);
}
return err;
@ -192,17 +264,16 @@ fail:
static void iforce_usb_disconnect(struct usb_interface *intf)
{
struct iforce *iforce = usb_get_intfdata(intf);
struct iforce_usb *iforce_usb = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
input_unregister_device(iforce->dev);
input_unregister_device(iforce_usb->iforce.dev);
usb_free_urb(iforce->irq);
usb_free_urb(iforce->out);
usb_free_urb(iforce->ctrl);
usb_free_urb(iforce_usb->irq);
usb_free_urb(iforce_usb->out);
kfree(iforce);
kfree(iforce_usb);
}
static const struct usb_device_id iforce_usb_ids[] = {
@ -214,6 +285,7 @@ static const struct usb_device_id iforce_usb_ids[] = {
{ USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */
{ USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */
{ USB_DEVICE(0x061c, 0xc084) }, /* ACT LABS Force RS */
{ USB_DEVICE(0x06a3, 0xff04) }, /* Saitek R440 Force Wheel */
{ USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */
{ USB_DEVICE(0x06f8, 0x0003) }, /* Guillemot Jet Leader Force Feedback */
{ USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */
@ -229,3 +301,9 @@ struct usb_driver iforce_usb_driver = {
.disconnect = iforce_usb_disconnect,
.id_table = iforce_usb_ids,
};
module_usb_driver(iforce_usb_driver);
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
MODULE_DESCRIPTION("USB I-Force joysticks and wheels driver");
MODULE_LICENSE("GPL");

53
drivers/input/joystick/iforce/iforce.h
View File

@ -26,8 +26,6 @@
#include <linux/input.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/usb.h>
#include <linux/serio.h>
#include <linux/circ_buf.h>
#include <linux/mutex.h>
@ -40,10 +38,6 @@
#define IFORCE_MAX_LENGTH 16
/* iforce::bus */
#define IFORCE_232 1
#define IFORCE_USB 2
#define IFORCE_EFFECTS_MAX 32
/* Each force feedback effect is made of one core effect, which can be
@ -93,27 +87,21 @@ struct iforce_device {
signed short *ff;
};
struct iforce;
struct iforce_xport_ops {
void (*xmit)(struct iforce *iforce);
int (*get_id)(struct iforce *iforce, u8 id,
u8 *response_data, size_t *response_len);
int (*start_io)(struct iforce *iforce);
void (*stop_io)(struct iforce *iforce);
};
struct iforce {
struct input_dev *dev; /* Input device interface */
struct iforce_device *type;
int bus;
const struct iforce_xport_ops *xport_ops;
unsigned char data[IFORCE_MAX_LENGTH];
unsigned char edata[IFORCE_MAX_LENGTH];
u16 ecmd;
u16 expect_packet;
#ifdef CONFIG_JOYSTICK_IFORCE_232
struct serio *serio; /* RS232 transfer */
int idx, pkt, len, id;
unsigned char csum;
#endif
#ifdef CONFIG_JOYSTICK_IFORCE_USB
struct usb_device *usbdev; /* USB transfer */
struct usb_interface *intf;
struct urb *irq, *out, *ctrl;
struct usb_ctrlrequest cr;
#endif
spinlock_t xmit_lock;
/* Buffer used for asynchronous sending of bytes to the device */
struct circ_buf xmit;
@ -139,23 +127,24 @@ struct iforce {
/* Encode a time value */
#define TIME_SCALE(a) (a)
static inline int iforce_get_id_packet(struct iforce *iforce, u8 id,
u8 *response_data, size_t *response_len)
{
return iforce->xport_ops->get_id(iforce, id,
response_data, response_len);
}
/* Public functions */
/* iforce-serio.c */
void iforce_serial_xmit(struct iforce *iforce);
/* iforce-usb.c */
void iforce_usb_xmit(struct iforce *iforce);
/* iforce-main.c */
int iforce_init_device(struct iforce *iforce);
int iforce_init_device(struct device *parent, u16 bustype,
struct iforce *iforce);
/* iforce-packets.c */
int iforce_control_playback(struct iforce*, u16 id, unsigned int);
void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data);
void iforce_process_packet(struct iforce *iforce,
u8 packet_id, u8 *data, size_t len);
int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data);
void iforce_dump_packet(struct iforce *iforce, char *msg, u16 cmd, unsigned char *data);
int iforce_get_id_packet(struct iforce *iforce, char *packet);
/* iforce-ff.c */
int iforce_upload_periodic(struct iforce *, struct ff_effect *, struct ff_effect *);