1 /* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
3 This software may be distributed and modified under the terms of the GNU
4 General Public License version 2 (GPL2) as published by the Free Software
5 Foundation and appearing in the file GPL2.TXT included in the packaging of
6 this file. Please note that GPL2 Section 2[b] requires that all works based
7 on this software must also be made publicly available under the terms of
14 Web : http://www.circuitsathome.com
15 e-mail : support@circuitsathome.com
17 #include "cdcprolific.h"
19 PL2303::PL2303(USB
*p
, CDCAsyncOper
*pasync
) :
24 uint8_t PL2303::Init(uint8_t parent
, uint8_t port
, bool lowspeed
) {
25 const uint8_t constBufSize
= sizeof (USB_DEVICE_DESCRIPTOR
);
27 uint8_t buf
[constBufSize
];
28 USB_DEVICE_DESCRIPTOR
* udd
= reinterpret_cast<USB_DEVICE_DESCRIPTOR
*>(buf
);
31 EpInfo
*oldep_ptr
= NULL
;
32 uint8_t num_of_conf
; // number of configurations
34 enum pl2303_type pltype
= unknown
;
37 AddressPool
&addrPool
= pUsb
->GetAddressPool();
39 USBTRACE("PL Init\r\n");
42 return USB_ERROR_CLASS_INSTANCE_ALREADY_IN_USE
;
44 // Get pointer to pseudo device with address 0 assigned
45 p
= addrPool
.GetUsbDevicePtr(0);
48 return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL
;
51 USBTRACE("epinfo\r\n");
52 return USB_ERROR_EPINFO_IS_NULL
;
55 // Save old pointer to EP_RECORD of address 0
56 oldep_ptr
= p
->epinfo
;
58 // Temporary assign new pointer to epInfo to p->epinfo in order to avoid toggle inconsistence
61 p
->lowspeed
= lowspeed
;
63 // Get device descriptor
64 rcode
= pUsb
->getDevDescr(0, 0, sizeof (USB_DEVICE_DESCRIPTOR
), (uint8_t*)buf
);
67 p
->epinfo
= oldep_ptr
;
72 if(udd
->idVendor
!= PL_VID
&& CHECK_PID(udd
->idProduct
))
73 return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED
;
75 /* determine chip variant */
77 if(udd
->bDeviceClass
== 0x02 )
79 else if(udd
->bMaxPacketSize0
== 0x40 )
81 else if(udd
->bDeviceClass
== 0x00)
83 else if(udd
->bDeviceClass
== 0xff)
87 // Save type of PL chip
88 wPLType
= udd
->bcdDevice
;
90 // Allocate new address according to device class
91 bAddress
= addrPool
.AllocAddress(parent
, false, port
);
94 return USB_ERROR_OUT_OF_ADDRESS_SPACE_IN_POOL
;
96 // Extract Max Packet Size from the device descriptor
97 epInfo
[0].maxPktSize
= udd
->bMaxPacketSize0
;
99 // Assign new address to the device
100 rcode
= pUsb
->setAddr(0, 0, bAddress
);
104 addrPool
.FreeAddress(bAddress
);
106 USBTRACE2("setAddr:", rcode
);
110 USBTRACE2("Addr:", bAddress
);
114 p
= addrPool
.GetUsbDevicePtr(bAddress
);
117 return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL
;
119 p
->lowspeed
= lowspeed
;
121 num_of_conf
= udd
->bNumConfigurations
;
123 // Assign epInfo to epinfo pointer
124 rcode
= pUsb
->setEpInfoEntry(bAddress
, 1, epInfo
);
127 goto FailSetDevTblEntry
;
129 USBTRACE2("NC:", num_of_conf
);
131 for(uint8_t i
= 0; i
< num_of_conf
; i
++) {
132 HexDumper
<USBReadParser
, uint16_t, uint16_t> HexDump
;
133 ConfigDescParser
< 0xFF, 0, 0, CP_MASK_COMPARE_CLASS
> confDescrParser(this);
135 rcode
= pUsb
->getConfDescr(bAddress
, 0, i
, &HexDump
);
138 goto FailGetConfDescr
;
140 rcode
= pUsb
->getConfDescr(bAddress
, 0, i
, &confDescrParser
);
143 goto FailGetConfDescr
;
150 return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED
;
152 // Assign epInfo to epinfo pointer
153 rcode
= pUsb
->setEpInfoEntry(bAddress
, bNumEP
, epInfo
);
155 USBTRACE2("Conf:", bConfNum
);
157 // Set Configuration Value
158 rcode
= pUsb
->setConf(bAddress
, 0, bConfNum
);
161 goto FailSetConfDescr
;
164 /* Shamanic dance - sending Prolific init data as-is */
165 vendorRead( 0x84, 0x84, 0, buf
);
166 vendorWrite( 0x04, 0x04, 0 );
167 vendorRead( 0x84, 0x84, 0, buf
);
168 vendorRead( 0x83, 0x83, 0, buf
);
169 vendorRead( 0x84, 0x84, 0, buf
);
170 vendorWrite( 0x04, 0x04, 1 );
171 vendorRead( 0x84, 0x84, 0, buf
);
172 vendorRead( 0x83, 0x83, 0, buf
);
173 vendorWrite( 0, 0, 1 );
174 vendorWrite( 1, 0, 0 );
175 if( pltype
== rev_HX
) {
176 vendorWrite( 2, 0, 0x44 );
177 vendorWrite( 0x06, 0x06, 0 ); // From W7 init
180 vendorWrite( 2, 0, 0x24 );
182 /* Shamanic dance end */
184 /* Calling post-init callback */
185 rcode
= pAsync
->OnInit(this);
190 USBTRACE("PL configured\r\n");
192 //bPollEnable = true;
197 #ifdef DEBUG_USB_HOST
198 NotifyFailGetDevDescr();
203 #ifdef DEBUG_USB_HOST
204 NotifyFailSetDevTblEntry();
209 #ifdef DEBUG_USB_HOST
210 NotifyFailGetConfDescr();
215 #ifdef DEBUG_USB_HOST
216 NotifyFailSetConfDescr();
221 #ifdef DEBUG_USB_HOST
225 #ifdef DEBUG_USB_HOST
235 // uint8_t rcode = 0;
237 // //if (!bPollEnable)
240 // //if (qNextPollTime <= millis())
242 // // USB_HOST_SERIAL.println(bAddress, HEX);
244 // // qNextPollTime = millis() + 100;