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[max/tmk_keyboard.git] / tmk_core / protocol / usb_hid / USB_Host_Shield_2.0 / cdcprolific.cpp
1 /* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.
2
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
8 the GPL2 ("Copyleft").
9
10 Contact information
11 -------------------
12
13 Circuits At Home, LTD
14 Web      :  http://www.circuitsathome.com
15 e-mail   :  support@circuitsathome.com
16  */
17 #include "cdcprolific.h"
18
19 PL2303::PL2303(USB *p, CDCAsyncOper *pasync) :
20 ACM(p, pasync),
21 wPLType(0) {
22 }
23
24 uint8_t PL2303::Init(uint8_t parent, uint8_t port, bool lowspeed) {
25         const uint8_t constBufSize = sizeof (USB_DEVICE_DESCRIPTOR);
26
27         uint8_t buf[constBufSize];
28         USB_DEVICE_DESCRIPTOR * udd = reinterpret_cast<USB_DEVICE_DESCRIPTOR*>(buf);
29         uint8_t rcode;
30         UsbDevice *p = NULL;
31         EpInfo *oldep_ptr = NULL;
32         uint8_t num_of_conf; // number of configurations
33 #ifdef PL2303_COMPAT
34         enum pl2303_type pltype = unknown;
35 #endif
36
37         AddressPool &addrPool = pUsb->GetAddressPool();
38
39         USBTRACE("PL Init\r\n");
40
41         if(bAddress)
42                 return USB_ERROR_CLASS_INSTANCE_ALREADY_IN_USE;
43
44         // Get pointer to pseudo device with address 0 assigned
45         p = addrPool.GetUsbDevicePtr(0);
46
47         if(!p)
48                 return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL;
49
50         if(!p->epinfo) {
51                 USBTRACE("epinfo\r\n");
52                 return USB_ERROR_EPINFO_IS_NULL;
53         }
54
55         // Save old pointer to EP_RECORD of address 0
56         oldep_ptr = p->epinfo;
57
58         // Temporary assign new pointer to epInfo to p->epinfo in order to avoid toggle inconsistence
59         p->epinfo = epInfo;
60
61         p->lowspeed = lowspeed;
62
63         // Get device descriptor
64         rcode = pUsb->getDevDescr(0, 0, sizeof (USB_DEVICE_DESCRIPTOR), (uint8_t*)buf);
65
66         // Restore p->epinfo
67         p->epinfo = oldep_ptr;
68
69         if(rcode)
70                 goto FailGetDevDescr;
71
72         if(udd->idVendor != PL_VID && CHECK_PID(udd->idProduct))
73                 return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED;
74
75         /* determine chip variant */
76 #ifdef PL2303_COMPAT
77         if(udd->bDeviceClass == 0x02 )
78                 pltype = type_0;
79         else if(udd->bMaxPacketSize0 == 0x40 )
80                 pltype = rev_HX;
81         else if(udd->bDeviceClass == 0x00)
82                 pltype = type_1;
83         else if(udd->bDeviceClass == 0xff)
84                 pltype = type_1;
85 #endif
86
87         // Save type of PL chip
88         wPLType = udd->bcdDevice;
89
90         // Allocate new address according to device class
91         bAddress = addrPool.AllocAddress(parent, false, port);
92
93         if(!bAddress)
94                 return USB_ERROR_OUT_OF_ADDRESS_SPACE_IN_POOL;
95
96         // Extract Max Packet Size from the device descriptor
97         epInfo[0].maxPktSize = udd->bMaxPacketSize0;
98
99         // Assign new address to the device
100         rcode = pUsb->setAddr(0, 0, bAddress);
101
102         if(rcode) {
103                 p->lowspeed = false;
104                 addrPool.FreeAddress(bAddress);
105                 bAddress = 0;
106                 USBTRACE2("setAddr:", rcode);
107                 return rcode;
108         }
109
110         USBTRACE2("Addr:", bAddress);
111
112         p->lowspeed = false;
113
114         p = addrPool.GetUsbDevicePtr(bAddress);
115
116         if(!p)
117                 return USB_ERROR_ADDRESS_NOT_FOUND_IN_POOL;
118
119         p->lowspeed = lowspeed;
120
121         num_of_conf = udd->bNumConfigurations;
122
123         // Assign epInfo to epinfo pointer
124         rcode = pUsb->setEpInfoEntry(bAddress, 1, epInfo);
125
126         if(rcode)
127                 goto FailSetDevTblEntry;
128
129         USBTRACE2("NC:", num_of_conf);
130
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);
134
135                 rcode = pUsb->getConfDescr(bAddress, 0, i, &HexDump);
136
137                 if(rcode)
138                         goto FailGetConfDescr;
139
140                 rcode = pUsb->getConfDescr(bAddress, 0, i, &confDescrParser);
141
142                 if(rcode)
143                         goto FailGetConfDescr;
144
145                 if(bNumEP > 1)
146                         break;
147         } // for
148
149         if(bNumEP < 2)
150                 return USB_DEV_CONFIG_ERROR_DEVICE_NOT_SUPPORTED;
151
152         // Assign epInfo to epinfo pointer
153         rcode = pUsb->setEpInfoEntry(bAddress, bNumEP, epInfo);
154
155         USBTRACE2("Conf:", bConfNum);
156
157         // Set Configuration Value
158         rcode = pUsb->setConf(bAddress, 0, bConfNum);
159
160         if(rcode)
161                 goto FailSetConfDescr;
162
163 #ifdef PL2303_COMPAT
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
178         }
179         else {
180                 vendorWrite( 2, 0, 0x24 );
181         }
182         /* Shamanic dance end */
183 #endif
184         /* Calling post-init callback */
185         rcode = pAsync->OnInit(this);
186
187         if(rcode)
188                 goto FailOnInit;
189
190         USBTRACE("PL configured\r\n");
191
192         //bPollEnable = true;
193         ready = true;
194         return 0;
195
196 FailGetDevDescr:
197 #ifdef DEBUG_USB_HOST
198         NotifyFailGetDevDescr();
199         goto Fail;
200 #endif
201
202 FailSetDevTblEntry:
203 #ifdef DEBUG_USB_HOST
204         NotifyFailSetDevTblEntry();
205         goto Fail;
206 #endif
207
208 FailGetConfDescr:
209 #ifdef DEBUG_USB_HOST
210         NotifyFailGetConfDescr();
211         goto Fail;
212 #endif
213
214 FailSetConfDescr:
215 #ifdef DEBUG_USB_HOST
216         NotifyFailSetConfDescr();
217         goto Fail;
218 #endif
219
220 FailOnInit:
221 #ifdef DEBUG_USB_HOST
222         USBTRACE("OnInit:");
223 #endif
224
225 #ifdef DEBUG_USB_HOST
226 Fail:
227         NotifyFail(rcode);
228 #endif
229         Release();
230         return rcode;
231 }
232
233 //uint8_t PL::Poll()
234 //{
235 //      uint8_t rcode = 0;
236 //
237 //      //if (!bPollEnable)
238 //      //      return 0;
239 //
240 //      //if (qNextPollTime <= millis())
241 //      //{
242 //      //      USB_HOST_SERIAL.println(bAddress, HEX);
243 //
244 //      //      qNextPollTime = millis() + 100;
245 //      //}
246 //      return rcode;
247 //}