Diff: cdcprolific.cpp

Revision:

0:84353c479782

Child:

1:2263e77400e9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cdcprolific.cpp	Sun Jul 12 20:39:26 2020 +0000
@@ -0,0 +1,247 @@
+/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
+
+This software may be distributed and modified under the terms of the GNU
+General Public License version 2 (GPL2) as published by the Free Software
+Foundation and appearing in the file GPL2.TXT included in the packaging of
+this file. Please note that GPL2 Section 2[b] requires that all works based
+on this software must also be made publicly available under the terms of
+the GPL2 ("Copyleft").
+
+Contact information
+-------------------
+
+Circuits At Home, LTD
+Web      :  http://www.circuitsathome.com
+e-mail   :  support@circuitsathome.com
+ */
+#include "cdcprolific.h"
+
+PL2303::PL2303(USB *p, CDCAsyncOper *pasync) :
+ACM(p, pasync),
+wPLType(0) {
+}
+
+uint8_t PL2303::Init(uint8_t parent, uint8_t port, bool lowspeed) {
+        const uint8_t constBufSize = sizeof (USB_DEVICE_DESCRIPTOR);
+
+        uint8_t buf[constBufSize];
+        USB_DEVICE_DESCRIPTOR * udd = reinterpret_cast<USB_DEVICE_DESCRIPTOR*>(buf);
+        uint8_t rcode;
+        UsbDevice *p = NULL;
+        EpInfo *oldep_ptr = NULL;
+        uint8_t num_of_conf; // number of configurations
+#ifdef PL2303_COMPAT
+        enum pl2303_type pltype = unknown;
+#endif
+
+        AddressPool &addrPool = pUsb->GetAddressPool();
+
+        USBTRACE("PL Init\r\n");
+
+        if(bAddress)
+                return USB_ERROR_CLASS_INSTANCE_ALREADY_IN_USE;
+
+        // Get pointer to pseudo device with address 0 assigned
+        p = addrPool.GetUsbDevicePtr(0);
+
+        if(!p)
+                return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL;
+
+        if(!p->epinfo) {
+                USBTRACE("epinfo\r\n");
+                return USB_ERROR_EPINFO_IS_NULL;
+        }
+
+        // Save old pointer to EP_RECORD of address 0
+        oldep_ptr = p->epinfo;
+
+        // Temporary assign new pointer to epInfo to p->epinfo in order to avoid toggle inconsistence
+        p->epinfo = epInfo;
+
+        p->lowspeed = lowspeed;
+
+        // Get device descriptor
+        rcode = pUsb->getDevDescr(0, 0, sizeof (USB_DEVICE_DESCRIPTOR), (uint8_t*)buf);
+
+        // Restore p->epinfo
+        p->epinfo = oldep_ptr;
+
+        if(rcode)
+                goto FailGetDevDescr;
+
+        if(udd->idVendor != PL_VID && CHECK_PID(udd->idProduct))
+                return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED;
+
+        /* determine chip variant */
+#ifdef PL2303_COMPAT
+        if(udd->bDeviceClass == 0x02 )
+                pltype = type_0;
+        else if(udd->bMaxPacketSize0 == 0x40 )
+                pltype = rev_HX;
+        else if(udd->bDeviceClass == 0x00)
+                pltype = type_1;
+        else if(udd->bDeviceClass == 0xff)
+                pltype = type_1;
+#endif
+
+        // Save type of PL chip
+        wPLType = udd->bcdDevice;
+
+        // Allocate new address according to device class
+        bAddress = addrPool.AllocAddress(parent, false, port);
+
+        if(!bAddress)
+                return USB_ERROR_OUT_OF_ADDRESS_SPACE_IN_POOL;
+
+        // Extract Max Packet Size from the device descriptor
+        epInfo[0].maxPktSize = udd->bMaxPacketSize0;
+
+        // Assign new address to the device
+        rcode = pUsb->setAddr(0, 0, bAddress);
+
+        if(rcode) {
+                p->lowspeed = false;
+                addrPool.FreeAddress(bAddress);
+                bAddress = 0;
+                USBTRACE2("setAddr:", rcode);
+                return rcode;
+        }
+
+        USBTRACE2("Addr:", bAddress);
+
+        p->lowspeed = false;
+
+        p = addrPool.GetUsbDevicePtr(bAddress);
+
+        if(!p)
+                return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL;
+
+        p->lowspeed = lowspeed;
+
+        num_of_conf = udd->bNumConfigurations;
+
+        // Assign epInfo to epinfo pointer
+        rcode = pUsb->setEpInfoEntry(bAddress, 1, epInfo);
+
+        if(rcode)
+                goto FailSetDevTblEntry;
+
+        USBTRACE2("NC:", num_of_conf);
+
+        for(uint8_t i = 0; i < num_of_conf; i++) {
+                HexDumper<USBReadParser, uint16_t, uint16_t> HexDump;
+                ConfigDescParser < 0xFF, 0, 0, CP_MASK_COMPARE_CLASS> confDescrParser(this);
+
+                rcode = pUsb->getConfDescr(bAddress, 0, i, &HexDump);
+
+                if(rcode)
+                        goto FailGetConfDescr;
+
+                rcode = pUsb->getConfDescr(bAddress, 0, i, &confDescrParser);
+
+                if(rcode)
+                        goto FailGetConfDescr;
+
+                if(bNumEP > 1)
+                        break;
+        } // for
+
+        if(bNumEP < 2)
+                return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED;
+
+        // Assign epInfo to epinfo pointer
+        rcode = pUsb->setEpInfoEntry(bAddress, bNumEP, epInfo);
+
+        USBTRACE2("Conf:", bConfNum);
+
+        // Set Configuration Value
+        rcode = pUsb->setConf(bAddress, 0, bConfNum);
+
+        if(rcode)
+                goto FailSetConfDescr;
+
+#ifdef PL2303_COMPAT
+        /* Shamanic dance - sending Prolific init data as-is */
+        vendorRead( 0x84, 0x84, 0, buf );
+        vendorWrite( 0x04, 0x04, 0 );
+        vendorRead( 0x84, 0x84, 0, buf );
+        vendorRead( 0x83, 0x83, 0, buf );
+        vendorRead( 0x84, 0x84, 0, buf );
+        vendorWrite( 0x04, 0x04, 1 );
+        vendorRead( 0x84, 0x84, 0, buf);
+        vendorRead( 0x83, 0x83, 0, buf);
+        vendorWrite( 0, 0, 1 );
+        vendorWrite( 1, 0, 0 );
+        if( pltype == rev_HX ) {
+                vendorWrite( 2, 0, 0x44 );
+                vendorWrite( 0x06, 0x06, 0 ); // From W7 init
+        }
+        else {
+                vendorWrite( 2, 0, 0x24 );
+        }
+        /* Shamanic dance end */
+#endif
+        /* Calling post-init callback */
+        rcode = pAsync->OnInit(this);
+
+        if(rcode)
+                goto FailOnInit;
+
+        USBTRACE("PL configured\r\n");
+
+        //bPollEnable = true;
+        ready = true;
+        return 0;
+
+FailGetDevDescr:
+#ifdef DEBUG_USB_HOST
+        NotifyFailGetDevDescr();
+        goto Fail;
+#endif
+
+FailSetDevTblEntry:
+#ifdef DEBUG_USB_HOST
+        NotifyFailSetDevTblEntry();
+        goto Fail;
+#endif
+
+FailGetConfDescr:
+#ifdef DEBUG_USB_HOST
+        NotifyFailGetConfDescr();
+        goto Fail;
+#endif
+
+FailSetConfDescr:
+#ifdef DEBUG_USB_HOST
+        NotifyFailSetConfDescr();
+        goto Fail;
+#endif
+
+FailOnInit:
+#ifdef DEBUG_USB_HOST
+        USBTRACE("OnInit:");
+#endif
+
+#ifdef DEBUG_USB_HOST
+Fail:
+        NotifyFail(rcode);
+#endif
+        Release();
+        return rcode;
+}
+
+//uint8_t PL::Poll()
+//{
+//      uint8_t rcode = 0;
+//
+//      //if (!bPollEnable)
+//      //      return 0;
+//
+//      //if (qNextPollTime <= (uint32_t)millis())
+//      //{
+//      //      USB_HOST_SERIAL.println(bAddress, HEX);
+//
+//      //      qNextPollTime = (uint32_t)millis() + 100;
+//      //}
+//      return rcode;
+//}