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| author | Jonathan McCrohan <jmccrohan@gmail.com> | 2012-04-14 12:56:48 +0100 |
|---|---|---|
| committer | Jonathan McCrohan <jmccrohan@gmail.com> | 2012-04-14 12:56:48 +0100 |
| commit | 0b624384cd52be20e61284551d832b499d7b7707 (patch) | |
| tree | 6f95a4bbef47abc9720b96c0722e8f632aef228a /cphidgetgeneric.c | |
| download | libphidget21-0b624384cd52be20e61284551d832b499d7b7707.tar.gz | |
Imported Upstream version 2.1.8.20120216upstream/2.1.8.20120216
Diffstat (limited to 'cphidgetgeneric.c')
| -rw-r--r-- | cphidgetgeneric.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/cphidgetgeneric.c b/cphidgetgeneric.c new file mode 100644 index 0000000..4534355 --- /dev/null +++ b/cphidgetgeneric.c @@ -0,0 +1,119 @@ +#include "stdafx.h"
+#include "cphidgetgeneric.h"
+#include "cusb.h"
+#include "csocket.h"
+#include "cthread.h"
+
+// === Internal Functions === //
+
+//clearVars - sets all device variables to unknown state
+CPHIDGETCLEARVARS(Generic)
+ ZEROMEM(phid->lastPacket, MAX_IN_PACKET_SIZE);
+
+ return EPHIDGET_OK;
+}
+
+//initAfterOpen - sets up the initial state of an object, reading in packets from the device if needed
+// used during attach initialization - on every attach
+CPHIDGETINIT(Generic)
+ TESTPTR(phid);
+
+ //Make sure no old writes are still pending
+ phid->outputPacketLen = 0;
+
+ ZEROMEM(phid->lastPacket, MAX_IN_PACKET_SIZE);
+
+ phid->out = phid->phid.outputReportByteLength;
+ phid->in = phid->phid.inputReportByteLength;
+
+
+#ifdef _WINDOWS
+ phid->out--;
+ phid->in--;
+#endif
+
+ return EPHIDGET_OK;
+}
+
+//dataInput - parses device packets
+CPHIDGETDATA(Generic)
+ if (length<0) return EPHIDGET_INVALIDARG;
+ TESTPTR(phid);
+ TESTPTR(buffer);
+
+#ifdef _WINDOWS
+ length--;
+#endif
+
+ FIRE(Packet, buffer, length);
+ memcpy(phid->lastPacket, buffer, length);
+
+ return EPHIDGET_OK;
+}
+
+//eventsAfterOpen - sends out an event for all valid data, used during attach initialization
+CPHIDGETINITEVENTS(Generic)
+ TESTPTR(phid);
+ return EPHIDGET_OK;
+}
+
+//getPacket - used by write thread to get the next packet to send to device
+CGETPACKET_BUF(Generic)
+
+//sendpacket - sends a packet to the device asynchronously, blocking if the 1-packet queue is full
+CSENDPACKET_BUF(Generic)
+
+// === Exported Functions === //
+
+//create and initialize a device structure
+CCREATE(Generic, PHIDCLASS_GENERIC)
+
+//event setup functions
+CFHANDLE(Generic, Packet,const unsigned char *, int)
+
+CGET(Generic,INPacketLength,int)
+ TESTPTRS(phid,pVal)
+ TESTDEVICETYPE(PHIDCLASS_GENERIC)
+ TESTATTACHED
+ MASGN(in)
+}
+
+CGET(Generic,OUTPacketLength,int)
+ TESTPTRS(phid,pVal)
+ TESTDEVICETYPE(PHIDCLASS_GENERIC)
+ TESTATTACHED
+ MASGN(out)
+}
+
+int CCONV
+CPhidgetGeneric_setPacket(CPhidgetGenericHandle phid, unsigned char *packet, int length)
+{
+ int ret = 0;
+
+ TESTPTR(phid)
+ TESTDEVICETYPE(PHIDCLASS_GENERIC)
+ TESTATTACHED
+
+ if(length!=phid->out)
+ return EPHIDGET_INVALIDARG;
+
+ CThread_mutex_lock(&phid->phid.writelock);
+ ret = CPhidgetGeneric_sendpacket(phid, packet);
+ CThread_mutex_unlock(&phid->phid.writelock);
+ if(ret) return ret;
+
+ return EPHIDGET_OK;
+}
+
+int CCONV
+CPhidgetGeneric_getLastPacket(CPhidgetGenericHandle phid, const unsigned char **packet, int *length)
+{
+ TESTPTRS(phid, packet)
+ TESTPTR(length)
+ TESTDEVICETYPE(PHIDCLASS_GENERIC)
+ TESTATTACHED
+
+ *packet = phid->lastPacket;
+ *length = phid->in;
+ return EPHIDGET_OK;
+}
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