Peter Cooper / Mbed 2 deprecated LazySusan

A USB/360deg Rotational device, communicating via blue-tooth, test code

Dependencies:   FatFileSystem mbed

USBHost.cpp@0:87da38093be9, 2012-12-21 (annotated)

Committer:
lolpcc
Date:
Fri Dec 21 11:37:38 2012 +0000
Revision:
0:87da38093be9
Used to test the Lazy Susan at work, hence the A2D code in Utils.cpp

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lolpcc 0:87da38093be9 1
lolpcc 0:87da38093be9 2 /*
lolpcc 0:87da38093be9 3 Copyright (c) 2010 Peter Barrett
lolpcc 0:87da38093be9 4
lolpcc 0:87da38093be9 5 Permission is hereby granted, free of charge, to any person obtaining a copy
lolpcc 0:87da38093be9 6 of this software and associated documentation files (the "Software"), to deal
lolpcc 0:87da38093be9 7 in the Software without restriction, including without limitation the rights
lolpcc 0:87da38093be9 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
lolpcc 0:87da38093be9 9 copies of the Software, and to permit persons to whom the Software is
lolpcc 0:87da38093be9 10 furnished to do so, subject to the following conditions:
lolpcc 0:87da38093be9 11
lolpcc 0:87da38093be9 12 The above copyright notice and this permission notice shall be included in
lolpcc 0:87da38093be9 13 all copies or substantial portions of the Software.
lolpcc 0:87da38093be9 14
lolpcc 0:87da38093be9 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
lolpcc 0:87da38093be9 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
lolpcc 0:87da38093be9 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
lolpcc 0:87da38093be9 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
lolpcc 0:87da38093be9 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
lolpcc 0:87da38093be9 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
lolpcc 0:87da38093be9 21 THE SOFTWARE.
lolpcc 0:87da38093be9 22 */
lolpcc 0:87da38093be9 23
lolpcc 0:87da38093be9 24 #include "mbed.h"
lolpcc 0:87da38093be9 25 #include "USBHost.h"
lolpcc 0:87da38093be9 26
lolpcc 0:87da38093be9 27 // Config (default uses x bytes)
lolpcc 0:87da38093be9 28 #define MAX_DEVICES 8 // Max number of devices
lolpcc 0:87da38093be9 29 #define MAX_ENDPOINTS_TOTAL 16 // Max number of endpoints total
lolpcc 0:87da38093be9 30 #define MAX_ENDPOINTS_PER_DEVICE 8 // Max number of endpoints for any one device
lolpcc 0:87da38093be9 31
lolpcc 0:87da38093be9 32 #define USBLOG 1
lolpcc 0:87da38093be9 33 #if USBLOG
lolpcc 0:87da38093be9 34 #define LOG(...) printf(__VA_ARGS__)
lolpcc 0:87da38093be9 35 #else
lolpcc 0:87da38093be9 36 #define LOG(...) do {} while(0)
lolpcc 0:87da38093be9 37 #endif
lolpcc 0:87da38093be9 38
lolpcc 0:87da38093be9 39 // USB host structures
lolpcc 0:87da38093be9 40
lolpcc 0:87da38093be9 41 #define USB_RAM_SIZE 16*1024 // AHB SRAM block 1 TODO MACHINE DEPENDENT
lolpcc 0:87da38093be9 42 #define USB_RAM_BASE 0x2007C000
lolpcc 0:87da38093be9 43
lolpcc 0:87da38093be9 44 #define TOKEN_SETUP 0
lolpcc 0:87da38093be9 45 #define TOKEN_IN 1
lolpcc 0:87da38093be9 46 #define TOKEN_OUT 2
lolpcc 0:87da38093be9 47
lolpcc 0:87da38093be9 48 // Status flags from hub
lolpcc 0:87da38093be9 49 #define PORT_CONNECTION 0
lolpcc 0:87da38093be9 50 #define PORT_ENABLE 1
lolpcc 0:87da38093be9 51 #define PORT_SUSPEND 2
lolpcc 0:87da38093be9 52 #define PORT_OVER_CURRENT 3
lolpcc 0:87da38093be9 53 #define PORT_RESET 4
lolpcc 0:87da38093be9 54 #define PORT_POWER 8
lolpcc 0:87da38093be9 55 #define PORT_LOW_SPEED 9
lolpcc 0:87da38093be9 56
lolpcc 0:87da38093be9 57 #define C_PORT_CONNECTION 16
lolpcc 0:87da38093be9 58 #define C_PORT_ENABLE 17
lolpcc 0:87da38093be9 59 #define C_PORT_SUSPEND 18
lolpcc 0:87da38093be9 60 #define C_PORT_OVER_CURRENT 19
lolpcc 0:87da38093be9 61 #define C_PORT_RESET 20
lolpcc 0:87da38093be9 62
lolpcc 0:87da38093be9 63 typedef struct {
lolpcc 0:87da38093be9 64 u8 bm_request_type;
lolpcc 0:87da38093be9 65 u8 b_request;
lolpcc 0:87da38093be9 66 u16 w_value;
lolpcc 0:87da38093be9 67 u16 w_index;
lolpcc 0:87da38093be9 68 u16 w_length;
lolpcc 0:87da38093be9 69 } Setup;
lolpcc 0:87da38093be9 70
lolpcc 0:87da38093be9 71
lolpcc 0:87da38093be9 72 // Hub stuff is kept private just to keep api simple
lolpcc 0:87da38093be9 73 int SetPortFeature(int device, int feature, int index);
lolpcc 0:87da38093be9 74 int ClearPortFeature(int device, int feature, int index);
lolpcc 0:87da38093be9 75 int SetPortPower(int device, int port);
lolpcc 0:87da38093be9 76 int SetPortReset(int device, int port);
lolpcc 0:87da38093be9 77 int GetPortStatus(int device, int port, u32* status);
lolpcc 0:87da38093be9 78
lolpcc 0:87da38093be9 79 //===================================================================
lolpcc 0:87da38093be9 80 //===================================================================
lolpcc 0:87da38093be9 81 // Hardware defines
lolpcc 0:87da38093be9 82
lolpcc 0:87da38093be9 83 // HcControl
lolpcc 0:87da38093be9 84 #define PeriodicListEnable 0x00000004
lolpcc 0:87da38093be9 85 #define IsochronousEnable 0x00000008
lolpcc 0:87da38093be9 86 #define ControlListEnable 0x00000010
lolpcc 0:87da38093be9 87 #define BulkListEnable 0x00000020
lolpcc 0:87da38093be9 88 #define OperationalMask 0x00000080
lolpcc 0:87da38093be9 89 #define HostControllerFunctionalState 0x000000C0
lolpcc 0:87da38093be9 90
lolpcc 0:87da38093be9 91 // HcCommandStatus
lolpcc 0:87da38093be9 92 #define HostControllerReset 0x00000001
lolpcc 0:87da38093be9 93 #define ControlListFilled 0x00000002
lolpcc 0:87da38093be9 94 #define BulkListFilled 0x00000004
lolpcc 0:87da38093be9 95
lolpcc 0:87da38093be9 96 // HcInterruptStatus Register
lolpcc 0:87da38093be9 97 #define WritebackDoneHead 0x00000002
lolpcc 0:87da38093be9 98 #define StartofFrame 0x00000004
lolpcc 0:87da38093be9 99 #define ResumeDetected 0x00000008
lolpcc 0:87da38093be9 100 #define UnrecoverableError 0x00000010
lolpcc 0:87da38093be9 101 #define FrameNumberOverflow 0x00000020
lolpcc 0:87da38093be9 102 #define RootHubStatusChange 0x00000040
lolpcc 0:87da38093be9 103 #define OwnershipChange 0x00000080
lolpcc 0:87da38093be9 104 #define MasterInterruptEnable 0x80000000
lolpcc 0:87da38093be9 105
lolpcc 0:87da38093be9 106 // HcRhStatus
lolpcc 0:87da38093be9 107 #define SetGlobalPower 0x00010000
lolpcc 0:87da38093be9 108 #define DeviceRemoteWakeupEnable 0x00008000
lolpcc 0:87da38093be9 109
lolpcc 0:87da38093be9 110 // HcRhPortStatus (hub 0, port 1)
lolpcc 0:87da38093be9 111 #define CurrentConnectStatus 0x00000001
lolpcc 0:87da38093be9 112 #define PortEnableStatus 0x00000002
lolpcc 0:87da38093be9 113 #define PortSuspendStatus 0x00000004
lolpcc 0:87da38093be9 114 #define PortOverCurrentIndicator 0x00000008
lolpcc 0:87da38093be9 115 #define PortResetStatus 0x00000010
lolpcc 0:87da38093be9 116
lolpcc 0:87da38093be9 117 #define PortPowerStatus 0x00000100
lolpcc 0:87da38093be9 118 #define LowspeedDevice 0x00000200
lolpcc 0:87da38093be9 119 #define HighspeedDevice 0x00000400
lolpcc 0:87da38093be9 120
lolpcc 0:87da38093be9 121 #define ConnectStatusChange (CurrentConnectStatus << 16)
lolpcc 0:87da38093be9 122 #define PortResetStatusChange (PortResetStatus << 16)
lolpcc 0:87da38093be9 123
lolpcc 0:87da38093be9 124
lolpcc 0:87da38093be9 125 #define TD_ROUNDING (u32)0x00040000
lolpcc 0:87da38093be9 126 #define TD_SETUP (u32)0x00000000
lolpcc 0:87da38093be9 127 #define TD_IN (u32)0x00100000
lolpcc 0:87da38093be9 128 #define TD_OUT (u32)0x00080000
lolpcc 0:87da38093be9 129 #define TD_DELAY_INT(x) (u32)((x) << 21)
lolpcc 0:87da38093be9 130 #define TD_TOGGLE_0 (u32)0x02000000
lolpcc 0:87da38093be9 131 #define TD_TOGGLE_1 (u32)0x03000000
lolpcc 0:87da38093be9 132 #define TD_CC (u32)0xF0000000
lolpcc 0:87da38093be9 133
lolpcc 0:87da38093be9 134 // HostController EndPoint Descriptor
lolpcc 0:87da38093be9 135 typedef struct {
lolpcc 0:87da38093be9 136 volatile u32 Control;
lolpcc 0:87da38093be9 137 volatile u32 TailTd;
lolpcc 0:87da38093be9 138 volatile u32 HeadTd;
lolpcc 0:87da38093be9 139 volatile u32 Next;
lolpcc 0:87da38093be9 140 } HCED;
lolpcc 0:87da38093be9 141
lolpcc 0:87da38093be9 142 // HostController Transfer Descriptor
lolpcc 0:87da38093be9 143 typedef struct {
lolpcc 0:87da38093be9 144 volatile u32 Control;
lolpcc 0:87da38093be9 145 volatile u32 CurrBufPtr;
lolpcc 0:87da38093be9 146 volatile u32 Next;
lolpcc 0:87da38093be9 147 volatile u32 BufEnd;
lolpcc 0:87da38093be9 148 } HCTD;
lolpcc 0:87da38093be9 149
lolpcc 0:87da38093be9 150 // Host Controller Communication Area
lolpcc 0:87da38093be9 151 typedef struct {
lolpcc 0:87da38093be9 152 volatile u32 InterruptTable[32];
lolpcc 0:87da38093be9 153 volatile u16 FrameNumber;
lolpcc 0:87da38093be9 154 volatile u16 FrameNumberPad;
lolpcc 0:87da38093be9 155 volatile u32 DoneHead;
lolpcc 0:87da38093be9 156 volatile u8 Reserved[120];
lolpcc 0:87da38093be9 157 } HCCA;
lolpcc 0:87da38093be9 158
lolpcc 0:87da38093be9 159 //====================================================================================
lolpcc 0:87da38093be9 160 //====================================================================================
lolpcc 0:87da38093be9 161
lolpcc 0:87da38093be9 162 class HostController;
lolpcc 0:87da38093be9 163 class Endpoint;
lolpcc 0:87da38093be9 164 class Device;
lolpcc 0:87da38093be9 165
lolpcc 0:87da38093be9 166 // must be 3*16 bytes long
lolpcc 0:87da38093be9 167 class Endpoint
lolpcc 0:87da38093be9 168 {
lolpcc 0:87da38093be9 169 public:
lolpcc 0:87da38093be9 170 HCED EndpointDescriptor; // Pointer to EndpointDescriptor == Pointer to Endpoint
lolpcc 0:87da38093be9 171 HCTD TDHead;
lolpcc 0:87da38093be9 172
lolpcc 0:87da38093be9 173 enum State
lolpcc 0:87da38093be9 174 {
lolpcc 0:87da38093be9 175 Free,
lolpcc 0:87da38093be9 176 NotQueued,
lolpcc 0:87da38093be9 177 Idle,
lolpcc 0:87da38093be9 178 SetupQueued,
lolpcc 0:87da38093be9 179 DataQueued,
lolpcc 0:87da38093be9 180 StatusQueued,
lolpcc 0:87da38093be9 181 CallbackPending
lolpcc 0:87da38093be9 182 };
lolpcc 0:87da38093be9 183
lolpcc 0:87da38093be9 184 volatile u8 CurrentState;
lolpcc 0:87da38093be9 185 u8 Flags; // 0x80 In, 0x03 mask endpoint type
lolpcc 0:87da38093be9 186
lolpcc 0:87da38093be9 187 u16 Length;
lolpcc 0:87da38093be9 188 u8* Data;
lolpcc 0:87da38093be9 189 USBCallback Callback; // Must be a multiple of 16 bytes long
lolpcc 0:87da38093be9 190 void* UserData;
lolpcc 0:87da38093be9 191
lolpcc 0:87da38093be9 192 int Address()
lolpcc 0:87da38093be9 193 {
lolpcc 0:87da38093be9 194 int ep = (EndpointDescriptor.Control >> 7) & 0xF;
lolpcc 0:87da38093be9 195 if (ep)
lolpcc 0:87da38093be9 196 ep |= Flags & 0x80;
lolpcc 0:87da38093be9 197 return ep;
lolpcc 0:87da38093be9 198 }
lolpcc 0:87da38093be9 199
lolpcc 0:87da38093be9 200 int Device()
lolpcc 0:87da38093be9 201 {
lolpcc 0:87da38093be9 202 return EndpointDescriptor.Control & 0x7F;
lolpcc 0:87da38093be9 203 }
lolpcc 0:87da38093be9 204
lolpcc 0:87da38093be9 205 int Status()
lolpcc 0:87da38093be9 206 {
lolpcc 0:87da38093be9 207 return (TDHead.Control >> 28) & 0xF;
lolpcc 0:87da38093be9 208 }
lolpcc 0:87da38093be9 209
lolpcc 0:87da38093be9 210 u32 Enqueue(u32 head)
lolpcc 0:87da38093be9 211 {
lolpcc 0:87da38093be9 212 if (CurrentState == NotQueued)
lolpcc 0:87da38093be9 213 {
lolpcc 0:87da38093be9 214 EndpointDescriptor.Next = head;
lolpcc 0:87da38093be9 215 head = (u32)&EndpointDescriptor;
lolpcc 0:87da38093be9 216 CurrentState = Idle;
lolpcc 0:87da38093be9 217 }
lolpcc 0:87da38093be9 218 return head;
lolpcc 0:87da38093be9 219 }
lolpcc 0:87da38093be9 220 };
lolpcc 0:87da38093be9 221
lolpcc 0:87da38093be9 222 class Device
lolpcc 0:87da38093be9 223 {
lolpcc 0:87da38093be9 224 public:
lolpcc 0:87da38093be9 225 u8 _endpointMap[MAX_ENDPOINTS_PER_DEVICE*2];
lolpcc 0:87da38093be9 226 u8 Hub;
lolpcc 0:87da38093be9 227 u8 Port;
lolpcc 0:87da38093be9 228 u8 Addr;
lolpcc 0:87da38093be9 229 u8 Pad;
lolpcc 0:87da38093be9 230
lolpcc 0:87da38093be9 231 // Only if this device is a hub
lolpcc 0:87da38093be9 232 u8 HubPortCount; // nonzero if this is a hub
lolpcc 0:87da38093be9 233 u8 HubInterruptData;
lolpcc 0:87da38093be9 234 u8 HubMap;
lolpcc 0:87da38093be9 235 u8 HubMask;
lolpcc 0:87da38093be9 236
lolpcc 0:87da38093be9 237 int Flags; // 1 = Disconnected
lolpcc 0:87da38093be9 238
lolpcc 0:87da38093be9 239 Setup SetupBuffer;
lolpcc 0:87da38093be9 240
lolpcc 0:87da38093be9 241 // Allocate endpoint zero
lolpcc 0:87da38093be9 242 int Init(DeviceDescriptor* d, int hub, int port, int addr, int lowSpeed)
lolpcc 0:87da38093be9 243 {
lolpcc 0:87da38093be9 244 Hub = hub;
lolpcc 0:87da38093be9 245 Port = port;
lolpcc 0:87da38093be9 246 Addr = addr;
lolpcc 0:87da38093be9 247 Flags = lowSpeed;
lolpcc 0:87da38093be9 248 memset(_endpointMap,0xFF,sizeof(_endpointMap));
lolpcc 0:87da38093be9 249 return 0;
lolpcc 0:87da38093be9 250 }
lolpcc 0:87da38093be9 251
lolpcc 0:87da38093be9 252 int SetEndpointIndex(int ep, int endpointIndex)
lolpcc 0:87da38093be9 253 {
lolpcc 0:87da38093be9 254 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
lolpcc 0:87da38093be9 255 {
lolpcc 0:87da38093be9 256 if (_endpointMap[i] == 0xFF) // Add endpoint to map
lolpcc 0:87da38093be9 257 {
lolpcc 0:87da38093be9 258 _endpointMap[i] = ep;
lolpcc 0:87da38093be9 259 _endpointMap[i+1] = endpointIndex;
lolpcc 0:87da38093be9 260 return 0;
lolpcc 0:87da38093be9 261 }
lolpcc 0:87da38093be9 262 }
lolpcc 0:87da38093be9 263 return ERR_ENDPOINT_NONE_LEFT;
lolpcc 0:87da38093be9 264 }
lolpcc 0:87da38093be9 265
lolpcc 0:87da38093be9 266 int GetEndpointIndex(int ep)
lolpcc 0:87da38093be9 267 {
lolpcc 0:87da38093be9 268 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
lolpcc 0:87da38093be9 269 {
lolpcc 0:87da38093be9 270 if (_endpointMap[i] == ep)
lolpcc 0:87da38093be9 271 return _endpointMap[i+1];
lolpcc 0:87da38093be9 272 if (_endpointMap[i] == 0xFF)
lolpcc 0:87da38093be9 273 break;
lolpcc 0:87da38093be9 274 }
lolpcc 0:87da38093be9 275 return -1;
lolpcc 0:87da38093be9 276 }
lolpcc 0:87da38093be9 277 };
lolpcc 0:87da38093be9 278
lolpcc 0:87da38093be9 279 class HostController
lolpcc 0:87da38093be9 280 {
lolpcc 0:87da38093be9 281 public:
lolpcc 0:87da38093be9 282 HCCA CommunicationArea;
lolpcc 0:87da38093be9 283 Endpoint Endpoints[MAX_ENDPOINTS_TOTAL]; // Multiple of 16
lolpcc 0:87da38093be9 284
lolpcc 0:87da38093be9 285 Endpoint EndpointZero; // For device enumeration
lolpcc 0:87da38093be9 286 HCTD _commonTail;
lolpcc 0:87da38093be9 287 Setup _setupZero;
lolpcc 0:87da38093be9 288
lolpcc 0:87da38093be9 289 Device Devices[MAX_DEVICES];
lolpcc 0:87da38093be9 290 u32 _frameNumber; // 32 bit ms counter
lolpcc 0:87da38093be9 291
lolpcc 0:87da38093be9 292 u8 _callbacksPending; // Endpoints with callbacks are pending, set from ISR via ProcessDoneQueue
lolpcc 0:87da38093be9 293 u8 _rootHubStatusChange; // Root hub status has changed, set from ISR
lolpcc 0:87da38093be9 294 u8 _unused0;
lolpcc 0:87da38093be9 295 u8 _unused1;
lolpcc 0:87da38093be9 296
lolpcc 0:87da38093be9 297 u8 _connectPending; // Reset has initiated a connect
lolpcc 0:87da38093be9 298 u8 _connectCountdown; // Number of ms left after reset before we can connect
lolpcc 0:87da38093be9 299 u8 _connectHub; // Will connect on this hub
lolpcc 0:87da38093be9 300 u8 _connectPort; // ... and this port
lolpcc 0:87da38093be9 301
lolpcc 0:87da38093be9 302 u8 SRAM[0]; // Start of free SRAM
lolpcc 0:87da38093be9 303
lolpcc 0:87da38093be9 304 void Loop()
lolpcc 0:87da38093be9 305 {
lolpcc 0:87da38093be9 306 u16 elapsed = CommunicationArea.FrameNumber - (u16)_frameNumber; // extend to 32 bits
lolpcc 0:87da38093be9 307 _frameNumber += elapsed;
lolpcc 0:87da38093be9 308
lolpcc 0:87da38093be9 309 // Do callbacks, if any
lolpcc 0:87da38093be9 310 while (_callbacksPending)
lolpcc 0:87da38093be9 311 {
lolpcc 0:87da38093be9 312 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
lolpcc 0:87da38093be9 313 {
lolpcc 0:87da38093be9 314 Endpoint* endpoint = Endpoints + i;
lolpcc 0:87da38093be9 315 if (endpoint->CurrentState == Endpoint::CallbackPending)
lolpcc 0:87da38093be9 316 {
lolpcc 0:87da38093be9 317 _callbacksPending--;
lolpcc 0:87da38093be9 318 endpoint->CurrentState = Endpoint::Idle;
lolpcc 0:87da38093be9 319 endpoint->Callback(endpoint->Device(),endpoint->Address(),endpoint->Status(),endpoint->Data,endpoint->Length,endpoint->UserData);
lolpcc 0:87da38093be9 320 }
lolpcc 0:87da38093be9 321 }
lolpcc 0:87da38093be9 322 }
lolpcc 0:87da38093be9 323
lolpcc 0:87da38093be9 324 // Deal with changes on the root hub
lolpcc 0:87da38093be9 325 if (_rootHubStatusChange)
lolpcc 0:87da38093be9 326 {
lolpcc 0:87da38093be9 327 u32 status = LPC_USB->HcRhPortStatus1;
lolpcc 0:87da38093be9 328 _rootHubStatusChange = 0;
lolpcc 0:87da38093be9 329 if (status >> 16)
lolpcc 0:87da38093be9 330 {
lolpcc 0:87da38093be9 331 HubStatusChange(0,1,status);
lolpcc 0:87da38093be9 332 LPC_USB->HcRhPortStatus1 = status & 0xFFFF0000; // clear status changes
lolpcc 0:87da38093be9 333 }
lolpcc 0:87da38093be9 334 }
lolpcc 0:87da38093be9 335
lolpcc 0:87da38093be9 336 // Connect after reset timeout
lolpcc 0:87da38093be9 337 if (_connectCountdown)
lolpcc 0:87da38093be9 338 {
lolpcc 0:87da38093be9 339 if (elapsed >= _connectCountdown)
lolpcc 0:87da38093be9 340 {
lolpcc 0:87da38093be9 341 _connectCountdown = 0;
lolpcc 0:87da38093be9 342 Connect(_connectHub,_connectPort & 0x7F,_connectPort & 0x80);
lolpcc 0:87da38093be9 343 } else
lolpcc 0:87da38093be9 344 _connectCountdown -= elapsed;
lolpcc 0:87da38093be9 345 }
lolpcc 0:87da38093be9 346 }
lolpcc 0:87da38093be9 347
lolpcc 0:87da38093be9 348 // HubInterrupt - bitmap in dev->HubInterruptData
lolpcc 0:87da38093be9 349 void HubInterrupt(int device)
lolpcc 0:87da38093be9 350 {
lolpcc 0:87da38093be9 351 Device* dev = &Devices[device-1];
lolpcc 0:87da38093be9 352 for (int i = 0; i < dev->HubPortCount; i++)
lolpcc 0:87da38093be9 353 {
lolpcc 0:87da38093be9 354 int port = i+1;
lolpcc 0:87da38093be9 355 if (dev->HubInterruptData & (1 << port))
lolpcc 0:87da38093be9 356 {
lolpcc 0:87da38093be9 357 u32 status = 0;
lolpcc 0:87da38093be9 358 GetPortStatus(device,port,&status);
lolpcc 0:87da38093be9 359 if (status >> 16)
lolpcc 0:87da38093be9 360 {
lolpcc 0:87da38093be9 361 if (_connectPending && (status & ConnectStatusChange))
lolpcc 0:87da38093be9 362 continue; // Don't connect again until previous device has been added and addressed
lolpcc 0:87da38093be9 363
lolpcc 0:87da38093be9 364 HubStatusChange(device,port,status);
lolpcc 0:87da38093be9 365 if (status & ConnectStatusChange)
lolpcc 0:87da38093be9 366 ClearPortFeature(device,C_PORT_CONNECTION,port);
lolpcc 0:87da38093be9 367 if (status & PortResetStatusChange)
lolpcc 0:87da38093be9 368 ClearPortFeature(device,C_PORT_RESET,port);
lolpcc 0:87da38093be9 369 }
lolpcc 0:87da38093be9 370 }
lolpcc 0:87da38093be9 371 }
lolpcc 0:87da38093be9 372 }
lolpcc 0:87da38093be9 373
lolpcc 0:87da38093be9 374 static void HubInterruptCallback(int device, int endpoint, int status, u8* data, int len, void* userData)
lolpcc 0:87da38093be9 375 {
lolpcc 0:87da38093be9 376 HostController* controller = (HostController*)userData;
lolpcc 0:87da38093be9 377 if (status == 0)
lolpcc 0:87da38093be9 378 controller->HubInterrupt(device);
lolpcc 0:87da38093be9 379 USBInterruptTransfer(device,endpoint,data,1,HubInterruptCallback,userData);
lolpcc 0:87da38093be9 380 }
lolpcc 0:87da38093be9 381
lolpcc 0:87da38093be9 382 int InitHub(int device)
lolpcc 0:87da38093be9 383 {
lolpcc 0:87da38093be9 384 u8 buf[16];
lolpcc 0:87da38093be9 385 int r= USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_DEVICE,GET_DESCRIPTOR,(DESCRIPTOR_TYPE_HUB << 8),0,buf,sizeof(buf));
lolpcc 0:87da38093be9 386 if (r < 0)
lolpcc 0:87da38093be9 387 return ERR_HUB_INIT_FAILED;
lolpcc 0:87da38093be9 388
lolpcc 0:87da38093be9 389 // turn on power on the hubs ports
lolpcc 0:87da38093be9 390 Device* dev = &Devices[device-1];
lolpcc 0:87da38093be9 391 int ports = buf[2];
lolpcc 0:87da38093be9 392 dev->HubPortCount = ports;
lolpcc 0:87da38093be9 393 for (int i = 0; i < ports; i++)
lolpcc 0:87da38093be9 394 SetPortPower(device,i+1);
lolpcc 0:87da38093be9 395
lolpcc 0:87da38093be9 396 // Enable hub change interrupts
lolpcc 0:87da38093be9 397 return USBInterruptTransfer(device,0x81,&dev->HubInterruptData,1,HubInterruptCallback,this);
lolpcc 0:87da38093be9 398 }
lolpcc 0:87da38093be9 399
lolpcc 0:87da38093be9 400 int AddEndpoint(int device, int ep, int attributes, int maxPacketSize, int interval)
lolpcc 0:87da38093be9 401 {
lolpcc 0:87da38093be9 402 LOG("AddEndpoint D:%02X A:%02X T:%02X P:%04X I:%02X\n\r",device,ep,attributes,maxPacketSize,interval);
lolpcc 0:87da38093be9 403 Device* dev = &Devices[device-1];
lolpcc 0:87da38093be9 404 Endpoint* endpoint = AllocateEndpoint(device,ep,attributes,maxPacketSize);
lolpcc 0:87da38093be9 405 if (!endpoint)
lolpcc 0:87da38093be9 406 return ERR_ENDPOINT_NONE_LEFT;
lolpcc 0:87da38093be9 407 dev->SetEndpointIndex(ep,endpoint - Endpoints);
lolpcc 0:87da38093be9 408 endpoint->EndpointDescriptor.Control |= dev->Flags; // Map in slow speed
lolpcc 0:87da38093be9 409 return 0; // TODO ed->bInterval
lolpcc 0:87da38093be9 410 }
lolpcc 0:87da38093be9 411
lolpcc 0:87da38093be9 412 int AddEndpoint(int device, EndpointDescriptor* ed)
lolpcc 0:87da38093be9 413 {
lolpcc 0:87da38093be9 414 return AddEndpoint(device,ed->bEndpointAddress,ed->bmAttributes,ed->wMaxPacketSize,ed->bInterval);
lolpcc 0:87da38093be9 415 }
lolpcc 0:87da38093be9 416
lolpcc 0:87da38093be9 417 // allocate a endpoint
lolpcc 0:87da38093be9 418 Endpoint* AllocateEndpoint(int device, int endpointAddress, int type, int maxPacketSize)
lolpcc 0:87da38093be9 419 {
lolpcc 0:87da38093be9 420 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
lolpcc 0:87da38093be9 421 {
lolpcc 0:87da38093be9 422 Endpoint* ep = &Endpoints[i];
lolpcc 0:87da38093be9 423 if (ep->CurrentState == 0)
lolpcc 0:87da38093be9 424 {
lolpcc 0:87da38093be9 425 //LOG("Allocated endpoint %d to %02X:%02X\n",i,device,endpointAddress);
lolpcc 0:87da38093be9 426 ep->Flags = (endpointAddress & 0x80) | (type & 3);
lolpcc 0:87da38093be9 427 ep->CurrentState = Endpoint::NotQueued;
lolpcc 0:87da38093be9 428 ep->EndpointDescriptor.Control = (maxPacketSize << 16) | ((endpointAddress & 0x7F) << 7) | device;
lolpcc 0:87da38093be9 429 return ep;
lolpcc 0:87da38093be9 430 }
lolpcc 0:87da38093be9 431 }
lolpcc 0:87da38093be9 432 return 0;
lolpcc 0:87da38093be9 433 }
lolpcc 0:87da38093be9 434
lolpcc 0:87da38093be9 435 Endpoint* GetEndpoint(int device, int ep)
lolpcc 0:87da38093be9 436 {
lolpcc 0:87da38093be9 437 if (device == 0)
lolpcc 0:87da38093be9 438 {
lolpcc 0:87da38093be9 439 //printf("WARNING: USING DEVICE 0\n");
lolpcc 0:87da38093be9 440 return &EndpointZero;
lolpcc 0:87da38093be9 441 }
lolpcc 0:87da38093be9 442 if (device > MAX_DEVICES)
lolpcc 0:87da38093be9 443 return 0;
lolpcc 0:87da38093be9 444 int i = Devices[device-1].GetEndpointIndex(ep);
lolpcc 0:87da38093be9 445 if (i == -1)
lolpcc 0:87da38093be9 446 return 0;
lolpcc 0:87da38093be9 447 return Endpoints + i;
lolpcc 0:87da38093be9 448 }
lolpcc 0:87da38093be9 449
lolpcc 0:87da38093be9 450 int Transfer(Endpoint* endpoint, int token, u8* data, int len, int state)
lolpcc 0:87da38093be9 451 {
lolpcc 0:87da38093be9 452 //LOG("Transfer %02X T:%d Len:%d S:%d\n",endpoint->Address(),token,len,state);
lolpcc 0:87da38093be9 453
lolpcc 0:87da38093be9 454 int toggle = 0;
lolpcc 0:87da38093be9 455 if (endpoint->Address() == 0)
lolpcc 0:87da38093be9 456 toggle = (token == TOKEN_SETUP) ? TD_TOGGLE_0 : TD_TOGGLE_1;
lolpcc 0:87da38093be9 457
lolpcc 0:87da38093be9 458 if (token != TOKEN_SETUP)
lolpcc 0:87da38093be9 459 token = (token == TOKEN_IN ? TD_IN : TD_OUT);
lolpcc 0:87da38093be9 460
lolpcc 0:87da38093be9 461 HCTD* head = &endpoint->TDHead;
lolpcc 0:87da38093be9 462 HCTD* tail = &_commonTail;
lolpcc 0:87da38093be9 463
lolpcc 0:87da38093be9 464 head->Control = TD_ROUNDING | token | TD_DELAY_INT(0) | toggle | TD_CC;
lolpcc 0:87da38093be9 465 head->CurrBufPtr = (u32)data;
lolpcc 0:87da38093be9 466 head->BufEnd = (u32)(data + len - 1);
lolpcc 0:87da38093be9 467 head->Next = (u32)tail;
lolpcc 0:87da38093be9 468
lolpcc 0:87da38093be9 469 HCED* ed = &endpoint->EndpointDescriptor;
lolpcc 0:87da38093be9 470 ed->HeadTd = (u32)head | (ed->HeadTd & 0x00000002); // carry toggle
lolpcc 0:87da38093be9 471 ed->TailTd = (u32)tail;
lolpcc 0:87da38093be9 472
lolpcc 0:87da38093be9 473 //HCTD* td = head;
lolpcc 0:87da38093be9 474 //LOG("%04X TD %08X %08X %08X Next:%08X\n",CommunicationArea.FrameNumber,td->Control,td->CurrBufPtr,td->BufEnd,td->Next);
lolpcc 0:87da38093be9 475 //LOG("%04X ED %08X %08X %08X\n",CommunicationArea.FrameNumber,ed->Control,ed->HeadTd,ed->TailTd);
lolpcc 0:87da38093be9 476
lolpcc 0:87da38093be9 477 switch (endpoint->Flags & 3)
lolpcc 0:87da38093be9 478 {
lolpcc 0:87da38093be9 479 case ENDPOINT_CONTROL:
lolpcc 0:87da38093be9 480 LPC_USB->HcControlHeadED = endpoint->Enqueue(LPC_USB->HcControlHeadED); // May change state NotQueued->Idle
lolpcc 0:87da38093be9 481 endpoint->CurrentState = state; // Get in before an int
lolpcc 0:87da38093be9 482 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | ControlListFilled;
lolpcc 0:87da38093be9 483 LPC_USB->HcControl = LPC_USB->HcControl | ControlListEnable;
lolpcc 0:87da38093be9 484 break;
lolpcc 0:87da38093be9 485
lolpcc 0:87da38093be9 486 case ENDPOINT_BULK:
lolpcc 0:87da38093be9 487 LPC_USB->HcBulkHeadED = endpoint->Enqueue(LPC_USB->HcBulkHeadED);
lolpcc 0:87da38093be9 488 endpoint->CurrentState = state;
lolpcc 0:87da38093be9 489 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | BulkListFilled;
lolpcc 0:87da38093be9 490 LPC_USB->HcControl = LPC_USB->HcControl | BulkListEnable;
lolpcc 0:87da38093be9 491 break;
lolpcc 0:87da38093be9 492
lolpcc 0:87da38093be9 493 case ENDPOINT_INTERRUPT:
lolpcc 0:87da38093be9 494 CommunicationArea.InterruptTable[0] = endpoint->Enqueue(CommunicationArea.InterruptTable[0]);
lolpcc 0:87da38093be9 495 endpoint->CurrentState = state;
lolpcc 0:87da38093be9 496 LPC_USB->HcControl |= PeriodicListEnable;
lolpcc 0:87da38093be9 497 break;
lolpcc 0:87da38093be9 498 }
lolpcc 0:87da38093be9 499 return 0;
lolpcc 0:87da38093be9 500 }
lolpcc 0:87da38093be9 501
lolpcc 0:87da38093be9 502 // Remove an endpoint from an active queue
lolpcc 0:87da38093be9 503 bool Remove(HCED* ed, volatile HCED** queue)
lolpcc 0:87da38093be9 504 {
lolpcc 0:87da38093be9 505 if (*queue == 0)
lolpcc 0:87da38093be9 506 return false;
lolpcc 0:87da38093be9 507 if (*queue == (volatile HCED*)ed)
lolpcc 0:87da38093be9 508 {
lolpcc 0:87da38093be9 509 *queue = (volatile HCED*)ed->Next; // At head of queue
lolpcc 0:87da38093be9 510 return true;
lolpcc 0:87da38093be9 511 }
lolpcc 0:87da38093be9 512
lolpcc 0:87da38093be9 513 volatile HCED* head = *queue;
lolpcc 0:87da38093be9 514 while (head)
lolpcc 0:87da38093be9 515 {
lolpcc 0:87da38093be9 516 if (head->Next == (u32)ed)
lolpcc 0:87da38093be9 517 {
lolpcc 0:87da38093be9 518 head->Next = ed->Next;
lolpcc 0:87da38093be9 519 return true;
lolpcc 0:87da38093be9 520 }
lolpcc 0:87da38093be9 521 head = (volatile HCED*)head->Next;
lolpcc 0:87da38093be9 522 }
lolpcc 0:87da38093be9 523 return false;
lolpcc 0:87da38093be9 524 }
lolpcc 0:87da38093be9 525
lolpcc 0:87da38093be9 526 void Release(Endpoint* endpoint)
lolpcc 0:87da38093be9 527 {
lolpcc 0:87da38093be9 528 if (endpoint->CurrentState == Endpoint::NotQueued)
lolpcc 0:87da38093be9 529 {
lolpcc 0:87da38093be9 530 // Never event used it, nothing to do
lolpcc 0:87da38093be9 531 }
lolpcc 0:87da38093be9 532 else
lolpcc 0:87da38093be9 533 {
lolpcc 0:87da38093be9 534 HCED* ed = (HCED*)endpoint;
lolpcc 0:87da38093be9 535 ed->Control |= 0x4000; // SKIP
lolpcc 0:87da38093be9 536 switch (endpoint->Flags & 0x03)
lolpcc 0:87da38093be9 537 {
lolpcc 0:87da38093be9 538 case ENDPOINT_CONTROL:
lolpcc 0:87da38093be9 539 Remove(ed,(volatile HCED**)&LPC_USB->HcControlHeadED);
lolpcc 0:87da38093be9 540 break;
lolpcc 0:87da38093be9 541 case ENDPOINT_BULK:
lolpcc 0:87da38093be9 542 Remove(ed,(volatile HCED**)&LPC_USB->HcBulkHeadED);
lolpcc 0:87da38093be9 543 break;
lolpcc 0:87da38093be9 544 case ENDPOINT_INTERRUPT:
lolpcc 0:87da38093be9 545 for (int i = 0; i < 32; i++)
lolpcc 0:87da38093be9 546 Remove(ed,(volatile HCED**)&CommunicationArea.InterruptTable[i]);
lolpcc 0:87da38093be9 547 break;
lolpcc 0:87da38093be9 548 }
lolpcc 0:87da38093be9 549
lolpcc 0:87da38093be9 550 u16 fn = CommunicationArea.FrameNumber;
lolpcc 0:87da38093be9 551 while (fn == CommunicationArea.FrameNumber)
lolpcc 0:87da38093be9 552 ; // Wait for next frame
lolpcc 0:87da38093be9 553
lolpcc 0:87da38093be9 554 }
lolpcc 0:87da38093be9 555
lolpcc 0:87da38093be9 556 // In theory, the endpoint is now dead.
lolpcc 0:87da38093be9 557 // TODO: Will Callbacks ever be pending? BUGBUG
lolpcc 0:87da38093be9 558 memset(endpoint,0,sizeof(Endpoint));
lolpcc 0:87da38093be9 559 }
lolpcc 0:87da38093be9 560
lolpcc 0:87da38093be9 561 // Pop the last TD from the list
lolpcc 0:87da38093be9 562 HCTD* Reverse(HCTD* current)
lolpcc 0:87da38093be9 563 {
lolpcc 0:87da38093be9 564 HCTD *result = NULL,*temp;
lolpcc 0:87da38093be9 565 while (current)
lolpcc 0:87da38093be9 566 {
lolpcc 0:87da38093be9 567 temp = (HCTD*)current->Next;
lolpcc 0:87da38093be9 568 current->Next = (u32)result;
lolpcc 0:87da38093be9 569 result = current;
lolpcc 0:87da38093be9 570 current = temp;
lolpcc 0:87da38093be9 571 }
lolpcc 0:87da38093be9 572 return result;
lolpcc 0:87da38093be9 573 }
lolpcc 0:87da38093be9 574
lolpcc 0:87da38093be9 575 // Called from interrupt...
lolpcc 0:87da38093be9 576 // Control endpoints use a state machine to progress through the transfers
lolpcc 0:87da38093be9 577 void ProcessDoneQueue(u32 tdList)
lolpcc 0:87da38093be9 578 {
lolpcc 0:87da38093be9 579 HCTD* list = Reverse((HCTD*)tdList);
lolpcc 0:87da38093be9 580 while (list)
lolpcc 0:87da38093be9 581 {
lolpcc 0:87da38093be9 582 Endpoint* endpoint = (Endpoint*)(list-1);
lolpcc 0:87da38093be9 583 list = (HCTD*)list->Next;
lolpcc 0:87da38093be9 584 int ep = endpoint->Address();
lolpcc 0:87da38093be9 585 bool in = endpoint->Flags & 0x80;
lolpcc 0:87da38093be9 586 int status = (endpoint->TDHead.Control >> 28) & 0xF;
lolpcc 0:87da38093be9 587
lolpcc 0:87da38093be9 588 //LOG("ProcessDoneQueue %02X %08X\n",ep,endpoint->TDHead.Control);
lolpcc 0:87da38093be9 589
lolpcc 0:87da38093be9 590 if (status != 0)
lolpcc 0:87da38093be9 591 {
lolpcc 0:87da38093be9 592 LOG("ProcessDoneQueue status %02X %d\n\r",ep,status);
lolpcc 0:87da38093be9 593 endpoint->CurrentState = Endpoint::Idle;
lolpcc 0:87da38093be9 594 } else {
lolpcc 0:87da38093be9 595 switch (endpoint->CurrentState)
lolpcc 0:87da38093be9 596 {
lolpcc 0:87da38093be9 597 case Endpoint::SetupQueued:
lolpcc 0:87da38093be9 598 if (endpoint->Length == 0)
lolpcc 0:87da38093be9 599 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Skip Data Phase
lolpcc 0:87da38093be9 600 else
lolpcc 0:87da38093be9 601 Transfer(endpoint,in ? TOKEN_IN : TOKEN_OUT,endpoint->Data,endpoint->Length, Endpoint::DataQueued); // Setup is done, now Data
lolpcc 0:87da38093be9 602 break;
lolpcc 0:87da38093be9 603
lolpcc 0:87da38093be9 604 case Endpoint::DataQueued:
lolpcc 0:87da38093be9 605 if (endpoint->TDHead.CurrBufPtr)
lolpcc 0:87da38093be9 606 endpoint->Length = endpoint->TDHead.CurrBufPtr - (u32)endpoint->Data;
lolpcc 0:87da38093be9 607
lolpcc 0:87da38093be9 608 if (ep == 0)
lolpcc 0:87da38093be9 609 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Data is done, now Status, Control only
lolpcc 0:87da38093be9 610 else
lolpcc 0:87da38093be9 611 endpoint->CurrentState = Endpoint::Idle;
lolpcc 0:87da38093be9 612 break;
lolpcc 0:87da38093be9 613
lolpcc 0:87da38093be9 614 case Endpoint::StatusQueued: // Transaction is done
lolpcc 0:87da38093be9 615 endpoint->CurrentState = Endpoint::Idle;
lolpcc 0:87da38093be9 616 break;
lolpcc 0:87da38093be9 617 }
lolpcc 0:87da38093be9 618 }
lolpcc 0:87da38093be9 619
lolpcc 0:87da38093be9 620 // Complete, flag if we need a callback
lolpcc 0:87da38093be9 621 if (endpoint->Callback && endpoint->CurrentState == Endpoint::Idle)
lolpcc 0:87da38093be9 622 {
lolpcc 0:87da38093be9 623 endpoint->CurrentState = Endpoint::CallbackPending;
lolpcc 0:87da38093be9 624 _callbacksPending++;
lolpcc 0:87da38093be9 625 }
lolpcc 0:87da38093be9 626 }
lolpcc 0:87da38093be9 627 }
lolpcc 0:87da38093be9 628
lolpcc 0:87da38093be9 629 // Hack to reset devices that don't want to connect
lolpcc 0:87da38093be9 630 int AddDevice(int hub, int port, bool isLowSpeed)
lolpcc 0:87da38093be9 631 {
lolpcc 0:87da38093be9 632 int device = AddDeviceCore(hub,port,isLowSpeed);
lolpcc 0:87da38093be9 633 if (device < 0)
lolpcc 0:87da38093be9 634 {
lolpcc 0:87da38093be9 635 LOG("========RETRY ADD DEVICE========\n\r"); // This will go for ever.. TODO power cycle root?
lolpcc 0:87da38093be9 636 Disconnect(hub,port); // Could not read descriptor at assigned address, reset this port and try again
lolpcc 0:87da38093be9 637 ResetPort(hub,port); // Cheap bluetooth dongles often need this on a hotplug
lolpcc 0:87da38093be9 638 return -1;
lolpcc 0:87da38093be9 639 }
lolpcc 0:87da38093be9 640 return device;
lolpcc 0:87da38093be9 641 }
lolpcc 0:87da38093be9 642
lolpcc 0:87da38093be9 643 int AddDeviceCore(int hub, int port, bool isLowSpeed)
lolpcc 0:87da38093be9 644 {
lolpcc 0:87da38093be9 645 int lowSpeed = isLowSpeed ? 0x2000 : 0;
lolpcc 0:87da38093be9 646 DeviceDescriptor desc;
lolpcc 0:87da38093be9 647 EndpointZero.EndpointDescriptor.Control = (8 << 16) | lowSpeed; // MaxPacketSize == 8
lolpcc 0:87da38093be9 648 int r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,8);
lolpcc 0:87da38093be9 649 if (r < 0)
lolpcc 0:87da38093be9 650 {
lolpcc 0:87da38093be9 651 LOG("FAILED TO LOAD DESCRIPTOR FOR DEVICE 0\n\r");
lolpcc 0:87da38093be9 652 return r;
lolpcc 0:87da38093be9 653 }
lolpcc 0:87da38093be9 654
lolpcc 0:87da38093be9 655 EndpointZero.EndpointDescriptor.Control = (desc.bMaxPacketSize << 16) | lowSpeed; // Actual MaxPacketSize
lolpcc 0:87da38093be9 656 r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
lolpcc 0:87da38093be9 657 if (r < 0)
lolpcc 0:87da38093be9 658 return r;
lolpcc 0:87da38093be9 659
lolpcc 0:87da38093be9 660 LOG("\nClass %02X found %04X:%04X\n\n\r",desc.bDeviceClass,desc.idVendor,desc.idProduct);
lolpcc 0:87da38093be9 661
lolpcc 0:87da38093be9 662 // Now assign the device an address, move off EndpointZero
lolpcc 0:87da38093be9 663 int device = 0;
lolpcc 0:87da38093be9 664 for (int i = 0; i < MAX_DEVICES; i++)
lolpcc 0:87da38093be9 665 {
lolpcc 0:87da38093be9 666 if (Devices[i].Port == 0)
lolpcc 0:87da38093be9 667 {
lolpcc 0:87da38093be9 668 device = i+1;
lolpcc 0:87da38093be9 669 break;
lolpcc 0:87da38093be9 670 }
lolpcc 0:87da38093be9 671 }
lolpcc 0:87da38093be9 672 if (!device)
lolpcc 0:87da38093be9 673 return ERR_DEVICE_NONE_LEFT;
lolpcc 0:87da38093be9 674
lolpcc 0:87da38093be9 675 r = SetAddress(0,device);
lolpcc 0:87da38093be9 676 if (r)
lolpcc 0:87da38093be9 677 return r;
lolpcc 0:87da38093be9 678 DelayMS(2);
lolpcc 0:87da38093be9 679
lolpcc 0:87da38093be9 680 // Now at a nonzero address, create control endpoint
lolpcc 0:87da38093be9 681 Device* dev = &Devices[device-1];
lolpcc 0:87da38093be9 682 dev->Init(&desc,hub,port,device,lowSpeed);
lolpcc 0:87da38093be9 683 AddEndpoint(device,0,ENDPOINT_CONTROL,desc.bMaxPacketSize,0);
lolpcc 0:87da38093be9 684 _connectPending = 0;
lolpcc 0:87da38093be9 685
lolpcc 0:87da38093be9 686 // Verify this all works
lolpcc 0:87da38093be9 687 r = GetDescriptor(device,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
lolpcc 0:87da38093be9 688 if (r < 0)
lolpcc 0:87da38093be9 689 return r;
lolpcc 0:87da38093be9 690
lolpcc 0:87da38093be9 691 // Set to interface 0 by default
lolpcc 0:87da38093be9 692 // Calls LoadDevice if interface is found
lolpcc 0:87da38093be9 693 r = SetConfigurationAndInterface(device,1,0,&desc);
lolpcc 0:87da38093be9 694
lolpcc 0:87da38093be9 695 if (desc.bDeviceClass == CLASS_HUB)
lolpcc 0:87da38093be9 696 InitHub(device); // Handle hubs in this code
lolpcc 0:87da38093be9 697
lolpcc 0:87da38093be9 698 return device;
lolpcc 0:87da38093be9 699 }
lolpcc 0:87da38093be9 700
lolpcc 0:87da38093be9 701 // Walk descriptors and create endpoints for a given device
lolpcc 0:87da38093be9 702 // TODO configuration !=1, alternate settings etc.
lolpcc 0:87da38093be9 703 int SetConfigurationAndInterface(int device, int configuration, int interfaceNumber, DeviceDescriptor* desc)
lolpcc 0:87da38093be9 704 {
lolpcc 0:87da38093be9 705 u8 buffer[255];
lolpcc 0:87da38093be9 706 int err = GetDescriptor(device,DESCRIPTOR_TYPE_CONFIGURATION,0,buffer,sizeof(buffer));
lolpcc 0:87da38093be9 707 if (err < 0)
lolpcc 0:87da38093be9 708 return err;
lolpcc 0:87da38093be9 709
lolpcc 0:87da38093be9 710 err = SetConfiguration(device,configuration);
lolpcc 0:87da38093be9 711 if (err < 0)
lolpcc 0:87da38093be9 712 return err;
lolpcc 0:87da38093be9 713
lolpcc 0:87da38093be9 714 // Add the endpoints for this interface
lolpcc 0:87da38093be9 715 int len = buffer[2] | (buffer[3] << 8);
lolpcc 0:87da38093be9 716 u8* d = buffer;
lolpcc 0:87da38093be9 717 u8* end = d + len;
lolpcc 0:87da38093be9 718 InterfaceDescriptor* found = 0;
lolpcc 0:87da38093be9 719 while (d < end)
lolpcc 0:87da38093be9 720 {
lolpcc 0:87da38093be9 721 if (d[1] == DESCRIPTOR_TYPE_INTERFACE)
lolpcc 0:87da38093be9 722 {
lolpcc 0:87da38093be9 723 InterfaceDescriptor* id = (InterfaceDescriptor*)d;
lolpcc 0:87da38093be9 724 if (id->bInterfaceNumber == interfaceNumber)
lolpcc 0:87da38093be9 725 {
lolpcc 0:87da38093be9 726 found = id;
lolpcc 0:87da38093be9 727 d += d[0];
lolpcc 0:87da38093be9 728 while (d < end && d[1] != DESCRIPTOR_TYPE_INTERFACE)
lolpcc 0:87da38093be9 729 {
lolpcc 0:87da38093be9 730 switch (d[1])
lolpcc 0:87da38093be9 731 {
lolpcc 0:87da38093be9 732 case DESCRIPTOR_TYPE_ENDPOINT:
lolpcc 0:87da38093be9 733 AddEndpoint(device,(EndpointDescriptor*)d);
lolpcc 0:87da38093be9 734 break;
lolpcc 0:87da38093be9 735 default:
lolpcc 0:87da38093be9 736 LOG("Skipping descriptor %02X (%d bytes)\n\r",d[1],d[0]);
lolpcc 0:87da38093be9 737 }
lolpcc 0:87da38093be9 738 d += d[0];
lolpcc 0:87da38093be9 739 }
lolpcc 0:87da38093be9 740 }
lolpcc 0:87da38093be9 741 }
lolpcc 0:87da38093be9 742 d += d[0];
lolpcc 0:87da38093be9 743 }
lolpcc 0:87da38093be9 744
lolpcc 0:87da38093be9 745 if (!found)
lolpcc 0:87da38093be9 746 return ERR_INTERFACE_NOT_FOUND;
lolpcc 0:87da38093be9 747 OnLoadDevice(device,desc,found);
lolpcc 0:87da38093be9 748 return 0;
lolpcc 0:87da38093be9 749 }
lolpcc 0:87da38093be9 750
lolpcc 0:87da38093be9 751 void Init()
lolpcc 0:87da38093be9 752 {
lolpcc 0:87da38093be9 753 LOG("USB INIT (Controller is %d bytes)\n\r",sizeof(*this));
lolpcc 0:87da38093be9 754 memset(this,0,sizeof(HostController));
lolpcc 0:87da38093be9 755 EndpointZero.CurrentState = Endpoint::NotQueued;
lolpcc 0:87da38093be9 756 HWInit(&CommunicationArea);
lolpcc 0:87da38093be9 757 DelayMS(10);
lolpcc 0:87da38093be9 758 }
lolpcc 0:87da38093be9 759
lolpcc 0:87da38093be9 760 void ResetPort(int hub, int port)
lolpcc 0:87da38093be9 761 {
lolpcc 0:87da38093be9 762 LOG("ResetPort Hub:%d Port:%d\n\r",hub,port);
lolpcc 0:87da38093be9 763 _connectPending++; // Only reset/add 1 device at a time
lolpcc 0:87da38093be9 764 if (hub == 0)
lolpcc 0:87da38093be9 765 LPC_USB->HcRhPortStatus1 = PortResetStatus; // Reset Root Hub, port 1
lolpcc 0:87da38093be9 766 else
lolpcc 0:87da38093be9 767 SetPortReset(hub,port); // or reset other hub
lolpcc 0:87da38093be9 768 }
lolpcc 0:87da38093be9 769
lolpcc 0:87da38093be9 770 void Disconnect(int hub, int port)
lolpcc 0:87da38093be9 771 {
lolpcc 0:87da38093be9 772 LOG("Disconnect Hub:%d Port:%d\n\r",hub,port); // Mark a device for destruction
lolpcc 0:87da38093be9 773 for (int i = 0; i < MAX_DEVICES; i++)
lolpcc 0:87da38093be9 774 {
lolpcc 0:87da38093be9 775 Device* dev = Devices + i;
lolpcc 0:87da38093be9 776 if (dev->Port == port && dev->Hub == hub)
lolpcc 0:87da38093be9 777 {
lolpcc 0:87da38093be9 778 // Disconnect everything that is attached to this device if it is a hub
lolpcc 0:87da38093be9 779 for (int p = 0; p < dev->HubPortCount; p++)
lolpcc 0:87da38093be9 780 Disconnect(i+1,p+1);
lolpcc 0:87da38093be9 781
lolpcc 0:87da38093be9 782 // Now release endpoints
lolpcc 0:87da38093be9 783 for (int j = 1; j < MAX_ENDPOINTS_PER_DEVICE*2; j += 2)
lolpcc 0:87da38093be9 784 {
lolpcc 0:87da38093be9 785 u8 endpointIndex = dev->_endpointMap[j];
lolpcc 0:87da38093be9 786 if (endpointIndex != 0xFF)
lolpcc 0:87da38093be9 787 Release(Endpoints + endpointIndex);
lolpcc 0:87da38093be9 788 }
lolpcc 0:87da38093be9 789 dev->Port = 0; // Device is now free
lolpcc 0:87da38093be9 790 dev->Flags = 0;
lolpcc 0:87da38093be9 791 return;
lolpcc 0:87da38093be9 792 }
lolpcc 0:87da38093be9 793 }
lolpcc 0:87da38093be9 794 }
lolpcc 0:87da38093be9 795
lolpcc 0:87da38093be9 796 // called after reset
lolpcc 0:87da38093be9 797 void Connect(int hub, int port, bool lowspeed)
lolpcc 0:87da38093be9 798 {
lolpcc 0:87da38093be9 799 LOG("Connect Hub:%d Port:%d %s\n\r",hub,port,lowspeed ? "slow" : "full");
lolpcc 0:87da38093be9 800 AddDevice(hub,port,lowspeed);
lolpcc 0:87da38093be9 801 }
lolpcc 0:87da38093be9 802
lolpcc 0:87da38093be9 803 // Called from interrupt
lolpcc 0:87da38093be9 804 void HubStatusChange(int hub, int port, u32 status)
lolpcc 0:87da38093be9 805 {
lolpcc 0:87da38093be9 806 LOG("HubStatusChange Hub:%d Port:%d %08X\n\r",hub,port,status);
lolpcc 0:87da38093be9 807 if (status & ConnectStatusChange)
lolpcc 0:87da38093be9 808 {
lolpcc 0:87da38093be9 809 if (status & CurrentConnectStatus) // Connecting
lolpcc 0:87da38093be9 810 ResetPort(hub,port); // Reset to initiate connect (state machine?)
lolpcc 0:87da38093be9 811 else
lolpcc 0:87da38093be9 812 Disconnect(hub,port);
lolpcc 0:87da38093be9 813 }
lolpcc 0:87da38093be9 814
lolpcc 0:87da38093be9 815 if (status & PortResetStatusChange)
lolpcc 0:87da38093be9 816 {
lolpcc 0:87da38093be9 817 if (!(status & PortResetStatus))
lolpcc 0:87da38093be9 818 {
lolpcc 0:87da38093be9 819 _connectCountdown = 200; // Schedule a connection in 200ms
lolpcc 0:87da38093be9 820 if (status & LowspeedDevice)
lolpcc 0:87da38093be9 821 port |= 0x80;
lolpcc 0:87da38093be9 822 _connectHub = hub;
lolpcc 0:87da38093be9 823 _connectPort = port;
lolpcc 0:87da38093be9 824 }
lolpcc 0:87da38093be9 825 }
lolpcc 0:87da38093be9 826 }
lolpcc 0:87da38093be9 827
lolpcc 0:87da38093be9 828 #define HOST_CLK_EN (1<<0)
lolpcc 0:87da38093be9 829 #define PORTSEL_CLK_EN (1<<3)
lolpcc 0:87da38093be9 830 #define AHB_CLK_EN (1<<4)
lolpcc 0:87da38093be9 831 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
lolpcc 0:87da38093be9 832
lolpcc 0:87da38093be9 833 #define FRAMEINTERVAL (12000-1) // 1ms
lolpcc 0:87da38093be9 834 #define DEFAULT_FMINTERVAL ((((6 * (FRAMEINTERVAL - 210)) / 7) << 16) | FRAMEINTERVAL)
lolpcc 0:87da38093be9 835
lolpcc 0:87da38093be9 836 void DelayMS(int ms)
lolpcc 0:87da38093be9 837 {
lolpcc 0:87da38093be9 838 u16 f = ms + CommunicationArea.FrameNumber;
lolpcc 0:87da38093be9 839 while (f != CommunicationArea.FrameNumber)
lolpcc 0:87da38093be9 840 ;
lolpcc 0:87da38093be9 841 }
lolpcc 0:87da38093be9 842
lolpcc 0:87da38093be9 843 static void HWInit(HCCA* cca)
lolpcc 0:87da38093be9 844 {
lolpcc 0:87da38093be9 845 NVIC_DisableIRQ(USB_IRQn);
lolpcc 0:87da38093be9 846
lolpcc 0:87da38093be9 847 // turn on power for USB
lolpcc 0:87da38093be9 848 LPC_SC->PCONP |= (1UL<<31);
lolpcc 0:87da38093be9 849 // Enable USB host clock, port selection and AHB clock
lolpcc 0:87da38093be9 850 LPC_USB->USBClkCtrl |= CLOCK_MASK;
lolpcc 0:87da38093be9 851 // Wait for clocks to become available
lolpcc 0:87da38093be9 852 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
lolpcc 0:87da38093be9 853 ;
lolpcc 0:87da38093be9 854
lolpcc 0:87da38093be9 855 // We are a Host
lolpcc 0:87da38093be9 856 LPC_USB->OTGStCtrl |= 1;
lolpcc 0:87da38093be9 857 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN; // we don't need port selection clock until we do OTG
lolpcc 0:87da38093be9 858
lolpcc 0:87da38093be9 859 // configure USB pins
lolpcc 0:87da38093be9 860 LPC_PINCON->PINSEL1 &= ~((3<<26)|(3<<28));
lolpcc 0:87da38093be9 861 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // USB D+/D-
lolpcc 0:87da38093be9 862
lolpcc 0:87da38093be9 863 LPC_PINCON->PINSEL3 &= ~((3 << 6) | (3 << 22)); // USB_PPWR, USB_OVRCR
lolpcc 0:87da38093be9 864 LPC_PINCON->PINSEL3 |= ((2 << 6) | (2 << 22));
lolpcc 0:87da38093be9 865
lolpcc 0:87da38093be9 866 LPC_PINCON->PINSEL4 &= ~(3 << 18); // USB_CONNECT
lolpcc 0:87da38093be9 867 LPC_PINCON->PINSEL4 |= (1 << 18);
lolpcc 0:87da38093be9 868
lolpcc 0:87da38093be9 869 // Reset OHCI block
lolpcc 0:87da38093be9 870 LPC_USB->HcControl = 0;
lolpcc 0:87da38093be9 871 LPC_USB->HcControlHeadED = 0;
lolpcc 0:87da38093be9 872 LPC_USB->HcBulkHeadED = 0;
lolpcc 0:87da38093be9 873
lolpcc 0:87da38093be9 874 LPC_USB->HcCommandStatus = HostControllerReset;
lolpcc 0:87da38093be9 875 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL;
lolpcc 0:87da38093be9 876 LPC_USB->HcPeriodicStart = FRAMEINTERVAL*90/100;
lolpcc 0:87da38093be9 877
lolpcc 0:87da38093be9 878 LPC_USB->HcControl = (LPC_USB->HcControl & (~HostControllerFunctionalState)) | OperationalMask;
lolpcc 0:87da38093be9 879 LPC_USB->HcRhStatus = SetGlobalPower;
lolpcc 0:87da38093be9 880
lolpcc 0:87da38093be9 881 LPC_USB->HcHCCA = (u32)cca;
lolpcc 0:87da38093be9 882 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus;
lolpcc 0:87da38093be9 883 LPC_USB->HcInterruptEnable = MasterInterruptEnable | WritebackDoneHead | RootHubStatusChange | FrameNumberOverflow;
lolpcc 0:87da38093be9 884
lolpcc 0:87da38093be9 885 NVIC_SetPriority(USB_IRQn, 0);
lolpcc 0:87da38093be9 886 NVIC_EnableIRQ(USB_IRQn);
lolpcc 0:87da38093be9 887 while (cca->FrameNumber < 10)
lolpcc 0:87da38093be9 888 ; // 10ms delay before diving in
lolpcc 0:87da38093be9 889 }
lolpcc 0:87da38093be9 890 };
lolpcc 0:87da38093be9 891
lolpcc 0:87da38093be9 892 //====================================================================================
lolpcc 0:87da38093be9 893 //====================================================================================
lolpcc 0:87da38093be9 894 // Host controller instance and Interrupt handler
lolpcc 0:87da38093be9 895
lolpcc 0:87da38093be9 896 static HostController _controller __attribute__((at(USB_RAM_BASE)));
lolpcc 0:87da38093be9 897
lolpcc 0:87da38093be9 898 extern "C" void USB_IRQHandler(void) __irq;
lolpcc 0:87da38093be9 899 void USB_IRQHandler (void) __irq
lolpcc 0:87da38093be9 900 {
lolpcc 0:87da38093be9 901 u32 int_status = LPC_USB->HcInterruptStatus;
lolpcc 0:87da38093be9 902
lolpcc 0:87da38093be9 903 if (int_status & RootHubStatusChange) // Root hub status change
lolpcc 0:87da38093be9 904 _controller._rootHubStatusChange++; // Just flag the controller, will be processed in USBLoop
lolpcc 0:87da38093be9 905
lolpcc 0:87da38093be9 906 u32 head = 0;
lolpcc 0:87da38093be9 907 if (int_status & WritebackDoneHead)
lolpcc 0:87da38093be9 908 {
lolpcc 0:87da38093be9 909 head = _controller.CommunicationArea.DoneHead; // Writeback Done
lolpcc 0:87da38093be9 910 _controller.CommunicationArea.DoneHead = 0;
lolpcc 0:87da38093be9 911 }
lolpcc 0:87da38093be9 912 LPC_USB->HcInterruptStatus = int_status;
lolpcc 0:87da38093be9 913
lolpcc 0:87da38093be9 914 if (head)
lolpcc 0:87da38093be9 915 _controller.ProcessDoneQueue(head); // TODO - low bit can be set BUGBUG
lolpcc 0:87da38093be9 916 }
lolpcc 0:87da38093be9 917
lolpcc 0:87da38093be9 918 //====================================================================================
lolpcc 0:87da38093be9 919 //====================================================================================
lolpcc 0:87da38093be9 920 // API Methods
lolpcc 0:87da38093be9 921
lolpcc 0:87da38093be9 922 void USBInit()
lolpcc 0:87da38093be9 923 {
lolpcc 0:87da38093be9 924 return _controller.Init();
lolpcc 0:87da38093be9 925 }
lolpcc 0:87da38093be9 926
lolpcc 0:87da38093be9 927 void USBLoop()
lolpcc 0:87da38093be9 928 {
lolpcc 0:87da38093be9 929 return _controller.Loop();
lolpcc 0:87da38093be9 930 }
lolpcc 0:87da38093be9 931
lolpcc 0:87da38093be9 932 u8* USBGetBuffer(u32* len)
lolpcc 0:87da38093be9 933 {
lolpcc 0:87da38093be9 934 *len = USB_RAM_SIZE - sizeof(HostController);
lolpcc 0:87da38093be9 935 return _controller.SRAM;
lolpcc 0:87da38093be9 936 }
lolpcc 0:87da38093be9 937
lolpcc 0:87da38093be9 938 static Setup* GetSetup(int device)
lolpcc 0:87da38093be9 939 {
lolpcc 0:87da38093be9 940 if (device == 0)
lolpcc 0:87da38093be9 941 return &_controller._setupZero;
lolpcc 0:87da38093be9 942
lolpcc 0:87da38093be9 943 if (device < 1 || device > MAX_DEVICES)
lolpcc 0:87da38093be9 944 return 0;
lolpcc 0:87da38093be9 945 return &_controller.Devices[device-1].SetupBuffer;
lolpcc 0:87da38093be9 946 }
lolpcc 0:87da38093be9 947
lolpcc 0:87da38093be9 948 // Loop until IO on endpoint is complete
lolpcc 0:87da38093be9 949 static int WaitIODone(Endpoint* endpoint)
lolpcc 0:87da38093be9 950 {
lolpcc 0:87da38093be9 951 if (endpoint->CurrentState == Endpoint::NotQueued)
lolpcc 0:87da38093be9 952 return 0;
lolpcc 0:87da38093be9 953 while (endpoint->CurrentState != Endpoint::Idle)
lolpcc 0:87da38093be9 954 USBLoop(); // May generate callbacks, mount or unmount devices etc
lolpcc 0:87da38093be9 955 int status = endpoint->Status();
lolpcc 0:87da38093be9 956 if (status == 0)
lolpcc 0:87da38093be9 957 return endpoint->Length;
lolpcc 0:87da38093be9 958 return -status;
lolpcc 0:87da38093be9 959 }
lolpcc 0:87da38093be9 960
lolpcc 0:87da38093be9 961 int USBTransfer(int device, int ep, u8 flags, u8* data, int length, USBCallback callback, void* userData)
lolpcc 0:87da38093be9 962 {
lolpcc 0:87da38093be9 963 Endpoint* endpoint = _controller.GetEndpoint(device,ep);
lolpcc 0:87da38093be9 964 if (!endpoint)
lolpcc 0:87da38093be9 965 return ERR_ENDPOINT_NOT_FOUND;
lolpcc 0:87da38093be9 966
lolpcc 0:87da38093be9 967 WaitIODone(endpoint);
lolpcc 0:87da38093be9 968 endpoint->Flags = flags;
lolpcc 0:87da38093be9 969 endpoint->Data = data;
lolpcc 0:87da38093be9 970 endpoint->Length = length;
lolpcc 0:87da38093be9 971 endpoint->Callback = callback;
lolpcc 0:87da38093be9 972 endpoint->UserData = userData;
lolpcc 0:87da38093be9 973 if (ep == 0)
lolpcc 0:87da38093be9 974 _controller.Transfer(endpoint,TOKEN_SETUP,(u8*)GetSetup(device),8,Endpoint::SetupQueued);
lolpcc 0:87da38093be9 975 else
lolpcc 0:87da38093be9 976 _controller.Transfer(endpoint,flags & 0x80 ? TOKEN_IN : TOKEN_OUT,data,length,Endpoint::DataQueued);
lolpcc 0:87da38093be9 977 if (callback)
lolpcc 0:87da38093be9 978 return IO_PENDING;
lolpcc 0:87da38093be9 979 return WaitIODone(endpoint);
lolpcc 0:87da38093be9 980 }
lolpcc 0:87da38093be9 981
lolpcc 0:87da38093be9 982 int USBControlTransfer(int device, int request_type, int request, int value, int index, u8* data, int length, USBCallback callback, void * userData)
lolpcc 0:87da38093be9 983 {
lolpcc 0:87da38093be9 984 Setup* setup = GetSetup(device);
lolpcc 0:87da38093be9 985 if (!setup)
lolpcc 0:87da38093be9 986 return ERR_DEVICE_NOT_FOUND;
lolpcc 0:87da38093be9 987
lolpcc 0:87da38093be9 988 // Async control calls may overwrite setup buffer of previous call, so we need to wait before setting up next call
lolpcc 0:87da38093be9 989 WaitIODone(_controller.GetEndpoint(device,0));
lolpcc 0:87da38093be9 990
lolpcc 0:87da38093be9 991 setup->bm_request_type = request_type;
lolpcc 0:87da38093be9 992 setup->b_request = request;
lolpcc 0:87da38093be9 993 setup->w_value = value;
lolpcc 0:87da38093be9 994 setup->w_index = index;
lolpcc 0:87da38093be9 995 setup->w_length = length;
lolpcc 0:87da38093be9 996 return USBTransfer(device,0,request_type & DEVICE_TO_HOST,data,length,callback,userData);
lolpcc 0:87da38093be9 997 }
lolpcc 0:87da38093be9 998
lolpcc 0:87da38093be9 999 int USBInterruptTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
lolpcc 0:87da38093be9 1000 {
lolpcc 0:87da38093be9 1001 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_INTERRUPT,data,length,callback,userData);
lolpcc 0:87da38093be9 1002 }
lolpcc 0:87da38093be9 1003
lolpcc 0:87da38093be9 1004 int USBBulkTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
lolpcc 0:87da38093be9 1005 {
lolpcc 0:87da38093be9 1006 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_BULK,data,length,callback,userData);
lolpcc 0:87da38093be9 1007 }
lolpcc 0:87da38093be9 1008
lolpcc 0:87da38093be9 1009 int GetDescriptor(int device, int descType,int descIndex, u8* data, int length)
lolpcc 0:87da38093be9 1010 {
lolpcc 0:87da38093be9 1011 return USBControlTransfer(device,DEVICE_TO_HOST | RECIPIENT_DEVICE, GET_DESCRIPTOR,(descType << 8)|(descIndex), 0, data, length, 0);
lolpcc 0:87da38093be9 1012 }
lolpcc 0:87da38093be9 1013
lolpcc 0:87da38093be9 1014 int GetString(int device, int index, char* dst, int length)
lolpcc 0:87da38093be9 1015 {
lolpcc 0:87da38093be9 1016 u8 buffer[255];
lolpcc 0:87da38093be9 1017 int le = GetDescriptor(device,DESCRIPTOR_TYPE_STRING,index,buffer,sizeof(buffer));
lolpcc 0:87da38093be9 1018 if (le < 0)
lolpcc 0:87da38093be9 1019 return le;
lolpcc 0:87da38093be9 1020 if (length < 1)
lolpcc 0:87da38093be9 1021 return -1;
lolpcc 0:87da38093be9 1022 length <<= 1;
lolpcc 0:87da38093be9 1023 if (le > length)
lolpcc 0:87da38093be9 1024 le = length;
lolpcc 0:87da38093be9 1025 for (int j = 2; j < le; j += 2)
lolpcc 0:87da38093be9 1026 *dst++ = buffer[j];
lolpcc 0:87da38093be9 1027 *dst = 0;
lolpcc 0:87da38093be9 1028 return (le>>1)-1;
lolpcc 0:87da38093be9 1029 }
lolpcc 0:87da38093be9 1030
lolpcc 0:87da38093be9 1031 int SetAddress(int device, int new_addr)
lolpcc 0:87da38093be9 1032 {
lolpcc 0:87da38093be9 1033 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_ADDRESS, new_addr, 0, 0, 0, 0);
lolpcc 0:87da38093be9 1034 }
lolpcc 0:87da38093be9 1035
lolpcc 0:87da38093be9 1036 int SetConfiguration(int device, int configNum)
lolpcc 0:87da38093be9 1037 {
lolpcc 0:87da38093be9 1038 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_CONFIGURATION, configNum, 0, 0, 0, 0);
lolpcc 0:87da38093be9 1039 }
lolpcc 0:87da38093be9 1040
lolpcc 0:87da38093be9 1041 int SetInterface(int device, int ifNum, int altNum)
lolpcc 0:87da38093be9 1042 {
lolpcc 0:87da38093be9 1043 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_INTERFACE, SET_INTERFACE, altNum, ifNum, 0, 0, 0);
lolpcc 0:87da38093be9 1044 }
lolpcc 0:87da38093be9 1045
lolpcc 0:87da38093be9 1046 // HUB stuff
lolpcc 0:87da38093be9 1047 int SetPortFeature(int device, int feature, int index)
lolpcc 0:87da38093be9 1048 {
lolpcc 0:87da38093be9 1049 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,SET_FEATURE,feature,index,0,0);
lolpcc 0:87da38093be9 1050 }
lolpcc 0:87da38093be9 1051
lolpcc 0:87da38093be9 1052 int ClearPortFeature(int device, int feature, int index)
lolpcc 0:87da38093be9 1053 {
lolpcc 0:87da38093be9 1054 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,CLEAR_FEATURE,feature,index,0,0);
lolpcc 0:87da38093be9 1055 }
lolpcc 0:87da38093be9 1056
lolpcc 0:87da38093be9 1057 int SetPortPower(int device, int port)
lolpcc 0:87da38093be9 1058 {
lolpcc 0:87da38093be9 1059 int r = SetPortFeature(device,PORT_POWER,port);
lolpcc 0:87da38093be9 1060 _controller.DelayMS(20); // 80ms to turn on a hubs power... DESCRIPTOR? todo
lolpcc 0:87da38093be9 1061 return r;
lolpcc 0:87da38093be9 1062 }
lolpcc 0:87da38093be9 1063
lolpcc 0:87da38093be9 1064 int SetPortReset(int device, int port)
lolpcc 0:87da38093be9 1065 {
lolpcc 0:87da38093be9 1066 return SetPortFeature(device,PORT_RESET,port);
lolpcc 0:87da38093be9 1067 }
lolpcc 0:87da38093be9 1068
lolpcc 0:87da38093be9 1069 int GetPortStatus(int device, int port, u32* status)
lolpcc 0:87da38093be9 1070 {
lolpcc 0:87da38093be9 1071 return USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,GET_STATUS,0,port,(u8*)status,4);
lolpcc 0:87da38093be9 1072 }