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cdc-acm: store in and out pipes in acm structure 

Clearing stall needs pipe descriptor, store it in acm structure.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ladislav Michl 2016-11-18 19:09:19 +01:00 committed by Greg Kroah-Hartman
parent ba8c931ded
commit 74bccc9b71
2 changed files with 18 additions and 16 deletions
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33
drivers/usb/class/cdc-acm.c
View File

@ -1338,8 +1338,16 @@ made_compressed_probe:
spin_lock_init(&acm->read_lock);
mutex_init(&acm->mutex);
acm->is_int_ep = usb_endpoint_xfer_int(epread);
if (acm->is_int_ep)
if (acm->is_int_ep) {
acm->bInterval = epread->bInterval;
acm->in = usb_rcvintpipe(usb_dev, epread->bEndpointAddress);
} else {
acm->in = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress);
}
if (usb_endpoint_xfer_int(epwrite))
acm->out = usb_sndintpipe(usb_dev, epwrite->bEndpointAddress);
else
acm->out = usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress);
tty_port_init(&acm->port);
acm->port.ops = &acm_port_ops;
init_usb_anchor(&acm->delayed);
@ -1374,20 +1382,15 @@ made_compressed_probe:
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
urb->transfer_dma = rb->dma;
if (acm->is_int_ep) {
usb_fill_int_urb(urb, acm->dev,
usb_rcvintpipe(usb_dev, epread->bEndpointAddress),
rb->base,
if (acm->is_int_ep)
usb_fill_int_urb(urb, acm->dev, acm->in, rb->base,
acm->readsize,
acm_read_bulk_callback, rb,
acm->bInterval);
} else {
usb_fill_bulk_urb(urb, acm->dev,
usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress),
rb->base,
else
usb_fill_bulk_urb(urb, acm->dev, acm->in, rb->base,
acm->readsize,
acm_read_bulk_callback, rb);
}
acm->read_urbs[i] = urb;
__set_bit(i, &acm->read_urbs_free);
@ -1400,12 +1403,10 @@ made_compressed_probe:
goto alloc_fail7;
if (usb_endpoint_xfer_int(epwrite))
usb_fill_int_urb(snd->urb, usb_dev,
usb_sndintpipe(usb_dev, epwrite->bEndpointAddress),
usb_fill_int_urb(snd->urb, usb_dev, acm->out,
NULL, acm->writesize, acm_write_bulk, snd, epwrite->bInterval);
else
usb_fill_bulk_urb(snd->urb, usb_dev,
usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress),
usb_fill_bulk_urb(snd->urb, usb_dev, acm->out,
NULL, acm->writesize, acm_write_bulk, snd);
snd->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
if (quirks & SEND_ZERO_PACKET)
@ -1477,8 +1478,8 @@ skip_countries:
}
if (quirks & CLEAR_HALT_CONDITIONS) {
usb_clear_halt(usb_dev, usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress));
usb_clear_halt(usb_dev, usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress));
usb_clear_halt(usb_dev, acm->in);
usb_clear_halt(usb_dev, acm->out);
}
return 0;

1
drivers/usb/class/cdc-acm.h
View File

@ -83,6 +83,7 @@ struct acm {
struct usb_device *dev; /* the corresponding usb device */
struct usb_interface *control; /* control interface */
struct usb_interface *data; /* data interface */
unsigned in, out; /* i/o pipes */
struct tty_port port; /* our tty port data */
struct urb *ctrlurb; /* urbs */
u8 *ctrl_buffer; /* buffers of urbs */