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Minor update to PIC32 USB device driver

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4455 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-03-05 23:04:18 +00:00
parent f55923d1c0
commit a828a038fe
1 changed files with 14 additions and 6 deletions
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20
arch/mips/src/pic32mx/pic32mx-usbdev.c
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@ -265,7 +265,11 @@
#endif
/* Debug ********************************************************************/
/* CONFIG_PIC32MX_USBDEV_REGDEBUG enables dumping of all low-level register
* access and BDT accesses. Normally, this generates so much debug output
* that USB may not even be functional.
*/
#ifdef CONFIG_PIC32MX_USBDEV_REGDEBUG
# undef CONFIG_PIC32MX_USBDEV_BDTDEBUG
@ -287,6 +291,8 @@
#endif
/* CONFIG_PIC32MX_USBDEV_BDTDEBUG dumps most BDT settings */
#ifdef CONFIG_PIC32MX_USBDEV_BDTDEBUG
# define bdtdbg lldbg
@ -1003,13 +1009,13 @@ static int pic32mx_wrrequest(struct pic32mx_usbdev_s *priv, struct pic32mx_ep_s
}
}
/* Send the packet (might be a null packet nbytes == 0) */
/* Send the packet (might be a null packet with nbytes == 0) */
buf = privreq->req.buf + privreq->req.xfrd;
/* Setup the writes to the endpoints */
pic32mx_epwrite(privep, privep->bdtin, buf, nbytes);
pic32mx_epwrite(privep, bdt, buf, nbytes);
/* Special case endpoint 0 state information. The write request is in
* progress.
@ -1064,12 +1070,14 @@ static int pic32mx_rdcomplete(struct pic32mx_usbdev_s *priv,
DEBUGASSERT((bdtout->status & USB_BDT_UOWN) == USB_BDT_COWN);
/* Get the length of the data received from the BDT */
/* Get the length of the data received from the BDT. Add that to the
* total number of bytes transferred.
*/
readlen = (bdtout->status & USB_BDT_BYTECOUNT_MASK) >> USB_BDT_BYTECOUNT_SHIFT;
/* If the receive buffer is full or this is a partial packet,
* then we are finished with the transfer
/* If the receive buffer is full or this is a partial packet, then we are
* finished with the transfer.
*/
privreq->req.xfrd += readlen;