static inline char mon_text_get_setup(struct mon_event_text *ep,
struct urb *urb, char ev_type)
{
if (!usb_pipecontrol(urb->pipe) || ev_type != 'S')
return '-';
if (urb->transfer_flags & URB_NO_SETUP_DMA_MAP)
return mon_dmapeek(ep->setup, urb->setup_dma, SETUP_MAX);
if (urb->setup_packet == NULL)
return 'Z'; /* '0' would be not as pretty. */
memcpy(ep->setup, urb->setup_packet, SETUP_MAX);
return 0;
}
static inline char mon_text_get_data(struct mon_event_text *ep, struct urb *urb,
int len, char ev_type)
{
int pipe = urb->pipe;
if (len <= 0)
return 'L';
if (len >= DATA_MAX)
len = DATA_MAX;
/*
* Bulk is easy to shortcut reliably.
* XXX Other pipe types need consideration. Currently, we overdo it
* and collect garbage for them: better more than less.
*/
if (usb_pipebulk(pipe) || usb_pipecontrol(pipe)) {
if (usb_pipein(pipe)) {
if (ev_type == 'S')
return '<';
} else {
if (ev_type == 'C')
return '>';
}
}
/*
* The check to see if it's safe to poke at data has an enormous
* number of corner cases, but it seems that the following is
* more or less safe.
*
* We do not even try to look transfer_buffer, because it can
* contain non-NULL garbage in case the upper level promised to
* set DMA for the HCD.
*/
if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
return mon_dmapeek(ep->data, urb->transfer_dma, len);
if (urb->transfer_buffer == NULL)
return 'Z'; /* '0' would be not as pretty. */
memcpy(ep->data, urb->transfer_buffer, len);
return 0;
}
static inline char mon_text_get_data(struct mon_event_text *ep, struct urb *urb,
int len, char ev_type, struct mon_bus *mbus)
{
if (len <= 0)
return 'L';
if (len >= DATA_MAX)
len = DATA_MAX;
if (ep->is_in) {
if (ev_type != 'C')
return '<';
} else {
if (ev_type != 'S')
return '>';
}
/*
* The check to see if it's safe to poke at data has an enormous
* number of corner cases, but it seems that the following is
* more or less safe.
*
* We do not even try to look at transfer_buffer, because it can
* contain non-NULL garbage in case the upper level promised to
* set DMA for the HCD.
*/
if (urb->dev->bus->uses_dma &&
(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) {
return mon_dmapeek(ep->data, urb->transfer_dma, len);
}
if (urb->transfer_buffer == NULL)
return 'Z'; /* '0' would be not as pretty. */
memcpy(ep->data, urb->transfer_buffer, len);
return 0;
}
