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Input: iforce - move transport data into transport modules

Browse Source 
This moves transport-specific data from main iforce structure into
transport modules.

Tested-by: Tim Schumacher <timschumi@gmx.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2018-08-03 16:27:45 -07:00
parent 501025df2e
commit 81fd431326
3 changed files with 143 additions and 103 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

96
drivers/input/joystick/iforce/iforce-serio.c
View File

@ -23,8 +23,20 @@
#include "iforce.h"
struct iforce_serio {
struct iforce iforce;
struct serio *serio;
int idx, pkt, len, id;
u8 csum;
u8 expect_packet;
};
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 +57,20 @@ 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;
@ -69,14 +82,18 @@ again:
static int iforce_serio_get_id(struct iforce *iforce, u8 *packet)
{
iforce->expect_packet = FF_CMD_QUERY;
struct iforce_serio *iforce_serio = container_of(iforce,
struct iforce_serio,
iforce);
iforce_serio->expect_packet = HI(FF_CMD_QUERY);
iforce_send_packet(iforce, FF_CMD_QUERY, packet);
wait_event_interruptible_timeout(iforce->wait,
!iforce->expect_packet, HZ);
!iforce_serio->expect_packet, HZ);
if (iforce->expect_packet) {
iforce->expect_packet = 0;
if (iforce_serio->expect_packet) {
iforce_serio->expect_packet = 0;
return -EIO;
}
@ -111,54 +128,56 @@ static void iforce_serio_write_wakeup(struct serio *serio)
static irqreturn_t iforce_serio_irq(struct serio *serio,
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->data[iforce_serio->idx++] = data;
iforce_serio->csum += data;
goto out;
}
if (iforce->idx == iforce->len) {
u16 cmd = (iforce->id << 8) | iforce->idx;
if (iforce_serio->idx == iforce_serio->len) {
u16 cmd = (iforce_serio->id << 8) | iforce_serio->idx;
/* Handle command completion */
if (HI(iforce->expect_packet) == HI(cmd)) {
iforce->expect_packet = 0;
if (iforce_serio->expect_packet == iforce_serio->id) {
iforce_serio->expect_packet = 0;
iforce->ecmd = cmd;
memcpy(iforce->edata, iforce->data, IFORCE_MAX_LENGTH);
}
iforce_process_packet(iforce, cmd, iforce->data);
iforce->pkt = 0;
iforce->id = 0;
iforce->len = 0;
iforce->idx = 0;
iforce->csum = 0;
iforce_serio->pkt = 0;
iforce_serio->id = 0;
iforce_serio->len = 0;
iforce_serio->idx = 0;
iforce_serio->csum = 0;
}
out:
return IRQ_HANDLED;
@ -166,18 +185,21 @@ out:
static int iforce_serio_connect(struct serio *serio, struct serio_driver *drv)
{
struct iforce_serio *iforce_serio;
struct iforce *iforce;
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 = &iforce_serio->iforce;
iforce->xport_ops = &iforce_serio_xport_ops;
iforce->bus = IFORCE_232;
iforce->serio = serio;
serio_set_drvdata(serio, iforce);
iforce_serio->serio = serio;
serio_set_drvdata(serio, iforce_serio);
err = serio_open(serio, drv);
if (err)
@ -191,18 +213,18 @@ 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[] = {

138
drivers/input/joystick/iforce/iforce-usb.c
View File

@ -23,8 +23,19 @@
#include "iforce.h"
struct iforce_usb {
struct iforce iforce;
struct usb_device *usbdev;
struct usb_interface *intf;
struct urb *irq, *out, *ctrl;
struct usb_ctrlrequest cr;
};
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 +47,32 @@ static 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.
@ -77,26 +89,28 @@ static void iforce_usb_xmit(struct iforce *iforce)
static int iforce_usb_get_id(struct iforce *iforce, u8 *packet)
{
struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
iforce);
int status;
iforce->cr.bRequest = packet[0];
iforce->ctrl->dev = iforce->usbdev;
iforce_usb->cr.bRequest = packet[0];
iforce_usb->ctrl->dev = iforce_usb->usbdev;
status = usb_submit_urb(iforce->ctrl, GFP_KERNEL);
status = usb_submit_urb(iforce_usb->ctrl, GFP_KERNEL);
if (status) {
dev_err(&iforce->intf->dev,
dev_err(&iforce_usb->intf->dev,
"usb_submit_urb failed %d\n", status);
return -EIO;
}
wait_event_interruptible_timeout(iforce->wait,
iforce->ctrl->status != -EINPROGRESS, HZ);
iforce_usb->ctrl->status != -EINPROGRESS, HZ);
if (iforce->ctrl->status) {
dev_dbg(&iforce->intf->dev,
if (iforce_usb->ctrl->status) {
dev_dbg(&iforce_usb->intf->dev,
"iforce->ctrl->status = %d\n",
iforce->ctrl->status);
usb_unlink_urb(iforce->ctrl);
iforce_usb->ctrl->status);
usb_unlink_urb(iforce_usb->ctrl);
return -EIO;
}
@ -105,7 +119,10 @@ static int iforce_usb_get_id(struct iforce *iforce, u8 *packet)
static int iforce_usb_start_io(struct iforce *iforce)
{
if (usb_submit_urb(iforce->irq, GFP_KERNEL))
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;
@ -113,9 +130,12 @@ static int iforce_usb_start_io(struct iforce *iforce)
static void iforce_usb_stop_io(struct iforce *iforce)
{
usb_kill_urb(iforce->irq);
usb_kill_urb(iforce->out);
usb_kill_urb(iforce->ctrl);
struct iforce_usb *iforce_usb = container_of(iforce, struct iforce_usb,
iforce);
usb_kill_urb(iforce_usb->irq);
usb_kill_urb(iforce_usb->out);
usb_kill_urb(iforce_usb->ctrl);
}
static const struct iforce_xport_ops iforce_usb_xport_ops = {
@ -127,8 +147,9 @@ static const struct iforce_xport_ops iforce_usb_xport_ops = {
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) {
@ -152,7 +173,7 @@ static void iforce_usb_irq(struct urb *urb)
(iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 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);
@ -160,11 +181,12 @@ 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;
}
@ -176,8 +198,12 @@ static void iforce_usb_out(struct urb *urb)
static void iforce_usb_ctrl(struct urb *urb)
{
struct iforce *iforce = urb->context;
if (urb->status) return;
struct iforce_usb *iforce_usb = urb->context;
struct iforce *iforce = &iforce_usb->iforce;
if (urb->status)
return;
iforce->ecmd = 0xff00 | urb->actual_length;
wake_up(&iforce->wait);
}
@ -188,6 +214,7 @@ static int iforce_usb_probe(struct usb_interface *intf,
struct usb_device *dev = interface_to_usbdev(intf);
struct usb_host_interface *interface;
struct usb_endpoint_descriptor *epirq, *epout;
struct iforce_usb *iforce_usb;
struct iforce *iforce;
int err = -ENOMEM;
@ -199,49 +226,52 @@ 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)))
if (!(iforce_usb = kzalloc(sizeof(*iforce_usb) + 32, GFP_KERNEL)))
goto fail;
if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL)))
if (!(iforce_usb->irq = usb_alloc_urb(0, GFP_KERNEL)))
goto fail;
if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL)))
if (!(iforce_usb->out = usb_alloc_urb(0, GFP_KERNEL)))
goto fail;
if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL)))
if (!(iforce_usb->ctrl = usb_alloc_urb(0, GFP_KERNEL)))
goto fail;
iforce = &iforce_usb->iforce;
iforce->xport_ops = &iforce_usb_xport_ops;
iforce->bus = IFORCE_USB;
iforce->usbdev = dev;
iforce->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);
iforce_usb->usbdev = dev;
iforce_usb->intf = intf;
usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval);
iforce_usb->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE;
iforce_usb->cr.wIndex = 0;
iforce_usb->cr.wLength = cpu_to_le16(16);
usb_fill_int_urb(iforce->out, dev, usb_sndintpipe(dev, epout->bEndpointAddress),
iforce + 1, 32, iforce_usb_out, iforce, epout->bInterval);
usb_fill_int_urb(iforce_usb->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
iforce->data, 16, iforce_usb_irq, iforce_usb, epirq->bInterval);
usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0),
(void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce);
usb_fill_int_urb(iforce_usb->out, dev, usb_sndintpipe(dev, epout->bEndpointAddress),
iforce_usb + 1, 32, iforce_usb_out, iforce_usb, epout->bInterval);
usb_fill_control_urb(iforce_usb->ctrl, dev, usb_rcvctrlpipe(dev, 0),
(void*) &iforce_usb->cr, iforce->edata, 16, iforce_usb_ctrl, iforce_usb);
err = iforce_init_device(&intf->dev, BUS_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);
usb_free_urb(iforce_usb->ctrl);
kfree(iforce_usb);
}
return err;
@ -249,17 +279,17 @@ 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);
usb_free_urb(iforce_usb->ctrl);
kfree(iforce);
kfree(iforce_usb);
}
static const struct usb_device_id iforce_usb_ids[] = {

12
drivers/input/joystick/iforce/iforce.h
View File

@ -111,19 +111,7 @@ struct iforce {
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;