Integrating LPC214X USB
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@972 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
parent
72ac3b61b8
commit
8b07c901cd
@ -127,23 +127,33 @@
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/* Trace error codes */
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#define LPC214X_TRACEERR_ALLOCFAIL 0x0001
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#define LPC214X_TRACEERR_BADEPNO 0x0002
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#define LPC214X_TRACEERR_BADEPTYPE 0x0003
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#define LPC214X_TRACEERR_BADREQUEST 0x0004
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#define LPC214X_TRACEERR_BINDFAILED 0x0005
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#define LPC214X_TRACEERR_DMABUSY 0x0006
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#define LPC214X_TRACEERR_DRIVER 0x0007
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#define LPC214X_TRACEERR_DRIVERREGISTERED 0x0008
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#define LPC214X_TRACEERR_EPREAD 0x0009
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#define LPC214X_TRACEERR_INVALIDCMD 0x000a
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#define LPC214X_TRACEERR_INVALIDPARMS 0x000b
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#define LPC214X_TRACEERR_IRQREGISTRATION 0x000c
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#define LPC214X_TRACEERR_NODMADESC 0x000d
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#define LPC214X_TRACEERR_NOEP 0x000e
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#define LPC214X_TRACEERR_NOTCONFIGURED 0x000f
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#define LPC214X_TRACEERR_NULLPACKET 0x0010
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#define LPC214X_TRACEERR_NULLREQUEST 0x0011
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#define LPC214X_TRACEERR_STALLED 0x0012
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#define LPC214X_TRACEERR_BADCLEARFEATURE 0x0002
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#define LPC214X_TRACEERR_BADDEVGETSTATUS 0x0003
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#define LPC214X_TRACEERR_BADEPNO 0x0004
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#define LPC214X_TRACEERR_BADEPGETSTATUS 0x0005
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#define LPC214X_TRACEERR_BADEPTYPE 0x0006
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#define LPC214X_TRACEERR_BADGETCONFIG 0x0007
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#define LPC214X_TRACEERR_BADGETSETDESC 0x0008
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#define LPC214X_TRACEERR_BADGETSTATUS 0x0009
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#define LPC214X_TRACEERR_BADREQUEST 0x000a
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#define LPC214X_TRACEERR_BADSETADDRESS 0x000b
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#define LPC214X_TRACEERR_BADSETCONFIG 0x000c
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#define LPC214X_TRACEERR_BADSETFEATURE 0x000d
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#define LPC214X_TRACEERR_BINDFAILED 0x000e
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#define LPC214X_TRACEERR_DMABUSY 0x000f
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#define LPC214X_TRACEERR_DRIVER 0x0010
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#define LPC214X_TRACEERR_DRIVERREGISTERED 0x0011
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#define LPC214X_TRACEERR_EPREAD 0x0012
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#define LPC214X_TRACEERR_INVALIDCMD 0x0013
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#define LPC214X_TRACEERR_INVALIDCTRLREQ 0x0014
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#define LPC214X_TRACEERR_INVALIDPARMS 0x0015
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#define LPC214X_TRACEERR_IRQREGISTRATION 0x0016
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#define LPC214X_TRACEERR_NODMADESC 0x0017
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#define LPC214X_TRACEERR_NOEP 0x0018
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#define LPC214X_TRACEERR_NOTCONFIGURED 0x0019
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#define LPC214X_TRACEERR_NULLPACKET 0x001a
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#define LPC214X_TRACEERR_NULLREQUEST 0x001b
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#define LPC214X_TRACEERR_STALLED 0x001c
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/* Trace interrupt codes */
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@ -167,10 +177,16 @@
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#define LPC214X_TRACEINTID_EPRINT 0x0012
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#define LPC214X_TRACEINTID_EPSLOW 0x0013
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#define LPC214X_TRACEINTID_FRAME 0x0014
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#define LPC214X_TRACEINTID_IFGETSTATUS 0x0015
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#define LPC214X_TRACEINTID_SETADDRESS 0x0017
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#define LPC214X_TRACEINTID_SETFEATURE 0x0018
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#define LPC214X_TRACEINTID_SUSPENDCHG 0x0019
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#define LPC214X_TRACEINTID_GETCONFIG 0x0015
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#define LPC214X_TRACEINTID_GETSETDESC 0x0016
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#define LPC214X_TRACEINTID_GETSETIF 0x0017
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#define LPC214X_TRACEINTID_GETSTATUS 0x0018
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#define LPC214X_TRACEINTID_IFGETSTATUS 0x0019
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#define LPC214X_TRACEINTID_SETADDRESS 0x001a
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#define LPC214X_TRACEINTID_SETCONFIG 0x001b
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#define LPC214X_TRACEINTID_SETFEATURE 0x001c
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#define LPC214X_TRACEINTID_SUSPENDCHG 0x001d
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#define LPC214X_TRACEINTID_SYNCHFRAME 0x001e
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/* Hardware interface **********************************************************/
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@ -645,6 +661,11 @@ static uint32 lpc214x_usbcmd(uint16 cmd, ubyte data)
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}
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break;
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/* No data transfer */
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case CMD_USB_EP_VALIDATEBUFFER:
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break;
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default:
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switch (cmd & 0x1e0)
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{
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@ -693,6 +714,9 @@ static uint32 lpc214x_usbcmd(uint16 cmd, ubyte data)
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static void lpc214x_epwrite(ubyte epphy, const ubyte *data, uint32 nbytes)
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{
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uint32 value;
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boolean aligned = (((uint32)data & 3) == 0);
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/* Set the write enable bit for this physical EP address */
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lpc214x_putreg(((epphy << 1) & LPC214X_USBCTRL_EPMASK) | LPC214X_USBCTRL_WREN,
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@ -700,7 +724,7 @@ static void lpc214x_epwrite(ubyte epphy, const ubyte *data, uint32 nbytes)
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/* Set the transmit packet length (nbytes must be less than 2048) */
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putreg32(nbytes, LPC214X_USBDEV_TXPLEN);
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lpc214x_putreg(nbytes, LPC214X_USBDEV_TXPLEN);
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/* Transfer the packet data */
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@ -710,7 +734,18 @@ static void lpc214x_epwrite(ubyte epphy, const ubyte *data, uint32 nbytes)
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if (nbytes)
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{
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lpc214x_putreg(*data++, LPC214X_USBDEV_TXDATA);
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if (aligned)
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{
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value = *(uint32*)data;
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}
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else
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{
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value = (uint32)data[0] | ((uint32)data[1] << 8) |
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((uint32)data[2] << 16) | ((uint32)data[3] << 24);
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}
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lpc214x_putreg(value, LPC214X_USBDEV_TXDATA);
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data += 4;
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}
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else
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{
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@ -741,6 +776,24 @@ static int lpc214x_epread(ubyte epphy, ubyte *data, uint32 nbytes)
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uint32 pktlen;
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uint32 result;
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uint32 value;
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ubyte aligned = 0;
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/* If data is NULL, then we are being asked to read but discard the data.
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* For most cases, the resulting buffer will be aligned and we will be
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* able to do faster 32-bit transfers.
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*/
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if (data)
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{
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if (((uint32)data & 3) == 0)
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{
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aligned = 1;
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}
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else
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{
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aligned = 2;
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}
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}
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/* Set the read enable bit for this physical EP address */
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@ -751,7 +804,7 @@ static int lpc214x_epread(ubyte epphy, ubyte *data, uint32 nbytes)
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while ((lpc214x_getreg(LPC214X_USBDEV_RXPLEN) & USBDEV_RXPLEN_PKTRDY) == 0);
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/* Get the about of data to be read */
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/* Get the number of bytes of data to be read */
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pktlen = lpc214x_getreg(LPC214X_USBDEV_RXPLEN) & USBDEV_RXPLEN_PKTLENGTH;
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@ -760,9 +813,17 @@ static int lpc214x_epread(ubyte epphy, ubyte *data, uint32 nbytes)
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while ((lpc214x_getreg(LPC214X_USBDEV_RXPLEN) & USBDEV_RXPLEN_DV) != 0)
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{
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value = lpc214x_getreg(LPC214X_USBDEV_RXDATA);
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if (data)
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if (aligned == 1)
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{
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*data++ = value;
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*(uint32*)data = value;
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data += 4;
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}
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else if (aligned == 2)
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{
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*data++ = (ubyte)value;
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*data++ = (ubyte)(value >> 8);
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*data++ = (ubyte)(value >> 16);
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*data++ = (ubyte)(value >> 24);
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}
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}
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@ -1273,6 +1334,10 @@ static inline void lpc214x_ep0setup(struct lpc214x_usbdev_s *priv)
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return;
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}
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uvdbg("type=%02x req=%02x value=%04x index=%04x len=%04x\n",
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ctrl.req, ctrl.type,
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GETUINT16(ctrl.value), GETUINT16(ctrl.index), GETUINT16(ctrl.len));
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/* Dispatch any non-standard requests */
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if ((ctrl.type & USB_REQ_TYPE_MASK) != USB_REQ_TYPE_STANDARD)
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@ -1289,8 +1354,13 @@ static inline void lpc214x_ep0setup(struct lpc214x_usbdev_s *priv)
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{
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case USB_REQ_GETSTATUS:
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{
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/* Length must be 2, from device, and value == 0 */
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/* type: device-to-host; recipient = device, interface, endpoint
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* value: 0
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* index: zero interface endpoint
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* len: 2; data = status
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*/
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usbtrace(TRACE_INTDECODE(LPC214X_TRACEINTID_GETSTATUS), 0);
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if (!priv->paddrset || GETUINT16(ctrl.len) != 2 ||
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(ctrl.type & USB_REQ_DIR_IN) == 0 || GETUINT16(ctrl.value) != 0)
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{
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@ -1320,6 +1390,7 @@ static inline void lpc214x_ep0setup(struct lpc214x_usbdev_s *priv)
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}
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else
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{
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usbtrace(TRACE_DEVERROR(LPC214X_TRACEERR_BADEPGETSTATUS), 0);
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priv->stalled = 1;
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}
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}
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@ -1342,6 +1413,7 @@ static inline void lpc214x_ep0setup(struct lpc214x_usbdev_s *priv)
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}
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else
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{
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usbtrace(TRACE_DEVERROR(LPC214X_TRACEERR_BADDEVGETSTATUS), 0);
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priv->stalled = 1;
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}
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}
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@ -1359,6 +1431,7 @@ static inline void lpc214x_ep0setup(struct lpc214x_usbdev_s *priv)
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default:
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{
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usbtrace(TRACE_DEVERROR(LPC214X_TRACEERR_BADGETSTATUS), 0);
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priv->stalled = 1;
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}
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break;
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@ -1369,12 +1442,18 @@ static inline void lpc214x_ep0setup(struct lpc214x_usbdev_s *priv)
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case USB_REQ_CLEARFEATURE:
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{
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/* type: host-to-device; recipient = device, interface or endpoint
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* value: feature selector
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* index: zero interface endpoint;
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* len: zero, data = none
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*/
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usbtrace(TRACE_INTDECODE(LPC214X_TRACEINTID_CLEARFEATURE), 0);
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if (ctrl.type != USB_REQ_RECIPIENT_ENDPOINT)
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if ((ctrl.type & USB_REQ_RECIPIENT_MASK) != USB_REQ_RECIPIENT_ENDPOINT)
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{
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lpc214x_dispatchrequest(priv, &ctrl);
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}
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else if (priv->paddrset && GETUINT16(ctrl.value) == USB_ENDPOINT_HALT &&
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else if (priv->paddrset && GETUINT16(ctrl.value) == USB_FEATURE_ENDPOINTHALT &&
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GETUINT16(ctrl.index) < LPC214X_NLOGENDPOINTS && GETUINT16(ctrl.len) == 0)
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{
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ubyte epphys = LPC214X_EP_LOG2PHY(GETUINT16(ctrl.index));
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@ -1384,24 +1463,31 @@ static inline void lpc214x_ep0setup(struct lpc214x_usbdev_s *priv)
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}
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else
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{
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priv->stalled = 1;
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usbtrace(TRACE_DEVERROR(LPC214X_TRACEERR_BADCLEARFEATURE), 0);
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priv->stalled = 1;
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}
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}
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break;
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case USB_REQ_SETFEATURE:
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{
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/* type: host-to-device; recipient = device, interface, endpoint
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* value: feature selector
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* index: zero interface endpoint;
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* len: 0; data = none
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*/
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usbtrace(TRACE_INTDECODE(LPC214X_TRACEINTID_SETFEATURE), 0);
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if (ctrl.type == USB_REQ_RECIPIENT_DEVICE &&
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if (((ctrl.type & USB_REQ_RECIPIENT_MASK) == USB_REQ_RECIPIENT_DEVICE) &&
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GETUINT16(ctrl.value) == USB_FEATURE_TESTMODE)
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{
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uvdbg("test mode: %d\n", GETUINT16(ctrl.index));
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}
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else if (ctrl.type != USB_REQ_RECIPIENT_ENDPOINT)
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else if ((ctrl.type & USB_REQ_RECIPIENT_MASK) != USB_REQ_RECIPIENT_ENDPOINT)
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{
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lpc214x_dispatchrequest(priv, &ctrl);
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}
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else if (priv->paddrset && GETUINT16(ctrl.value) == USB_ENDPOINT_HALT &&
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else if (priv->paddrset && GETUINT16(ctrl.value) == USB_FEATURE_ENDPOINTHALT &&
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GETUINT16(ctrl.index) < LPC214X_NLOGENDPOINTS && GETUINT16(ctrl.len) == 0)
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{
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ubyte epphys = LPC214X_EP_LOG2PHY(GETUINT16(ctrl.index));
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@ -1411,17 +1497,24 @@ static inline void lpc214x_ep0setup(struct lpc214x_usbdev_s *priv)
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}
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else
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{
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priv->stalled = 1;
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usbtrace(TRACE_DEVERROR(LPC214X_TRACEERR_BADSETFEATURE), 0);
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priv->stalled = 1;
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}
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}
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break;
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case USB_REQ_SETADDRESS:
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{
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/* type: host-to-device; recipient = device
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* value: device address
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* index: 0
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* len: 0; data = none
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*/
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usbtrace(TRACE_INTDECODE(LPC214X_TRACEINTID_SETADDRESS), 0);
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if ((ctrl.type == USB_REQ_RECIPIENT_DEVICE) &&
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(GETUINT16(ctrl.index) == 0) && (GETUINT16(ctrl.len) == 0) &&
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(GETUINT16(ctrl.value) < 128))
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if ((ctrl.type & USB_REQ_RECIPIENT_MASK) == USB_REQ_RECIPIENT_DEVICE &&
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GETUINT16(ctrl.index) == 0 && GETUINT16(ctrl.len) == 0 &&
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GETUINT16(ctrl.value) < 128)
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{
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lpc214x_epwrite(LPC214X_EP0_IN, NULL, 0);
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priv->eplist[LPC214X_EP0_OUT].eplog = ctrl.value[0];
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@ -1430,41 +1523,115 @@ static inline void lpc214x_ep0setup(struct lpc214x_usbdev_s *priv)
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}
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else
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{
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usbtrace(TRACE_DEVERROR(LPC214X_TRACEERR_BADSETADDRESS), 0);
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priv->stalled = 1;
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}
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}
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break;
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case USB_REQ_GETDESCRIPTOR:
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/* type: device-to-host; recipient = device
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* value: descriptor type and index
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* index: 0 or language ID;
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* len: descriptor len; data = descriptor
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*/
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case USB_REQ_SETDESCRIPTOR:
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case USB_REQ_GETCONFIGURATION:
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/* type: host-to-device; recipient = device
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* value: descriptor type and index
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* index: 0 or language ID;
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* len: descriptor len; data = descriptor
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*/
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{
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if (priv->paddrset && (GETUINT16(ctrl.value) == 0) &&
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(GETUINT16(ctrl.index) == 0) && (GETUINT16(ctrl.len) == 1))
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usbtrace(TRACE_INTDECODE(LPC214X_TRACEINTID_GETSETDESC), 0);
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if ((ctrl.type & USB_REQ_RECIPIENT_MASK) == USB_REQ_RECIPIENT_DEVICE)
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{
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lpc214x_dispatchrequest(priv, &ctrl);
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}
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else
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{
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usbtrace(TRACE_DEVERROR(LPC214X_TRACEERR_BADGETSETDESC), 0);
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priv->stalled = 1;
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}
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}
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break;
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case USB_REQ_GETCONFIGURATION:
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/* type: device-to-host; recipient = device
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* value: 0;
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* index: 0;
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* len: 1; data = configuration value
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*/
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{
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usbtrace(TRACE_INTDECODE(LPC214X_TRACEINTID_GETCONFIG), 0);
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if (priv->paddrset && (ctrl.type & USB_REQ_RECIPIENT_MASK) == USB_REQ_RECIPIENT_DEVICE &&
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GETUINT16(ctrl.value) == 0 && GETUINT16(ctrl.index) == 0 &&
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GETUINT16(ctrl.len) == 1)
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{
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lpc214x_dispatchrequest(priv, &ctrl);
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}
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else
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{
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usbtrace(TRACE_DEVERROR(LPC214X_TRACEERR_BADGETCONFIG), 0);
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priv->stalled = 1;
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}
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}
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break;
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case USB_REQ_SETCONFIGURATION:
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case USB_REQ_GETINTERFACE:
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case USB_REQ_SETINTERFACE:
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/* type: host-to-device; recipient = device
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* value: configuration value
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* index: 0;
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* len: 0; data = none
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*/
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{
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lpc214x_dispatchrequest(priv, &ctrl);
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usbtrace(TRACE_INTDECODE(LPC214X_TRACEINTID_SETCONFIG), 0);
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if ((ctrl.type & USB_REQ_RECIPIENT_MASK) == USB_REQ_RECIPIENT_DEVICE &&
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GETUINT16(ctrl.index) == 0 && GETUINT16(ctrl.len) == 0)
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{
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lpc214x_dispatchrequest(priv, &ctrl);
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}
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else
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{
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usbtrace(TRACE_DEVERROR(LPC214X_TRACEERR_BADSETCONFIG), 0);
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priv->stalled = 1;
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}
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}
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break;
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case USB_REQ_GETINTERFACE:
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/* type: device-to-host; recipient = interface
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* value: 0
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* index: interface;
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* len: 1; data = alt interface
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*/
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case USB_REQ_SETINTERFACE:
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/* type: host-to-device; recipient = interface
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* value: alternate setting
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* index: interface;
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* len: 0; data = none
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*/
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{
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usbtrace(TRACE_INTDECODE(LPC214X_TRACEINTID_GETSETIF), 0);
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lpc214x_dispatchrequest(priv, &ctrl);
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}
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break;
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case USB_REQ_SYNCHFRAME:
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/* type: device-to-host; recipient = endpoint
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* value: 0
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* index: endpoint;
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* len: 2; data = frame number
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||||
*/
|
||||
{
|
||||
usbtrace(TRACE_INTDECODE(LPC214X_TRACEINTID_SYNCHFRAME), 0);
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
priv->stalled = 1;
|
||||
{
|
||||
usbtrace(TRACE_DEVERROR(LPC214X_TRACEERR_INVALIDCTRLREQ), 0);
|
||||
priv->stalled = 1;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
@ -52,7 +52,7 @@
|
||||
#define MSBYTE(u16) ((u16) >> 8) /* Get MS byte from uint16 */
|
||||
#define LSBYTE(u16) ((u16) & 0xff) /* Get LS byte from uint16 */
|
||||
|
||||
#define GETUINT16(p) (((uint16)p[1] << 8)|(uint16)p[1])
|
||||
#define GETUINT16(p) (((uint16)p[1]<<8)|(uint16)p[0])
|
||||
|
||||
/* USB directions (in endpoint addresses) */
|
||||
|
||||
@ -63,7 +63,22 @@
|
||||
#define USB_EPOUT(addr) ((addr)|USB_DIR_OUT)
|
||||
#define USB_EPIN(addr) ((addr)|USB_DIR_IN)
|
||||
|
||||
/* Standard requests */
|
||||
/* Control Setup Packet. Byte 0=Request */
|
||||
|
||||
#define USB_REQ_DIR_IN (0x80) /* Bit 7=1: IN */
|
||||
|
||||
#define USB_REQ_TYPE_MASK (0x60) /* Bits 5:6: Request type */
|
||||
#define USB_REQ_TYPE_STANDARD (0x00)
|
||||
#define USB_REQ_TYPE_CLASS (0x20)
|
||||
#define USB_REQ_TYPE_VENDOR (0x40)
|
||||
|
||||
#define USB_REQ_RECIPIENT_MASK (0x1f) /* Bits 0:4: Recipient */
|
||||
#define USB_REQ_RECIPIENT_DEVICE (0x00)
|
||||
#define USB_REQ_RECIPIENT_INTERFACE (0x01)
|
||||
#define USB_REQ_RECIPIENT_ENDPOINT (0x02)
|
||||
#define USB_REQ_RECIPIENT_OTHER (0x03)
|
||||
|
||||
/* Control Setup Packet. Byte 1=Standard Request Codes */
|
||||
|
||||
#define USB_REQ_GETSTATUS (0x00)
|
||||
#define USB_REQ_CLEARFEATURE (0x01)
|
||||
@ -89,23 +104,9 @@
|
||||
#define USB_REQ_LOOPBACKDATAREAD (0x16)
|
||||
#define USB_REQ_SETINTERFACEDS (0x17)
|
||||
|
||||
/* Request type encoding */
|
||||
|
||||
#define USB_REQ_TYPE_MASK (0x60)
|
||||
#define USB_REQ_TYPE_STANDARD (0x00)
|
||||
#define USB_REQ_TYPE_CLASS (0x20)
|
||||
#define USB_REQ_TYPE_VENDOR (0x40)
|
||||
|
||||
#define USB_REQ_RECIPIENT_MASK (0x1f)
|
||||
#define USB_REQ_RECIPIENT_DEVICE (0x00)
|
||||
#define USB_REQ_RECIPIENT_INTERFACE (0x01)
|
||||
#define USB_REQ_RECIPIENT_ENDPOINT (0x02)
|
||||
#define USB_REQ_RECIPIENT_OTHER (0x03)
|
||||
#define USB_REQ_TYPE_MASK (0x60)
|
||||
#define USB_REQ_DIR_IN (0x80)
|
||||
|
||||
/* USB feature values */
|
||||
|
||||
#define USB_FEATURE_ENDPOINTHALT 0
|
||||
#define USB_FEATURE_SELFPOWERED 0
|
||||
#define USB_FEATURE_REMOTEWAKEUP 1
|
||||
#define USB_FEATURE_TESTMODE 2
|
||||
@ -116,8 +117,6 @@
|
||||
#define USB_FEATURE_AALTHNPSUPPORT 5
|
||||
#define USB_FEATURE_DEBUGMODE 6
|
||||
|
||||
#define USB_ENDPOINT_HALT 0
|
||||
|
||||
/* Generic descriptor header offsets */
|
||||
|
||||
#define USB_DESC_DESCLENOFFSET 0
|
||||
|
||||
@ -122,7 +122,7 @@
|
||||
* controller driver
|
||||
*/
|
||||
|
||||
#define TRACE_DEVERROR(id) TRACE_EVENT(TRACE_CLSERROR_ID, id)
|
||||
#define TRACE_DEVERROR(id) TRACE_EVENT(TRACE_DEVERROR_ID, id)
|
||||
|
||||
/* USB class driver error events. The 'id' is specific to the class driver,
|
||||
* but common to all driver controller instances.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user