Chris Styles / Mbed 2 deprecated m3pi_WiiRacing

Simons Wii controlled m3pi program

Dependencies:   mbed m3pi ID12RFIDIRQ

blueusb/USBHost.cpp@0:0ab65a1aef12, 2011-05-18 (annotated)

Committer:
chris
Date:
Wed May 18 14:50:46 2011 +0000
Revision:
0:0ab65a1aef12
Added some printing to the m3pi screen

Who changed what in which revision?

UserRevisionLine numberNew contents of line
chris 0:0ab65a1aef12 1
chris 0:0ab65a1aef12 2 /*
chris 0:0ab65a1aef12 3 Copyright (c) 2010 Peter Barrett
chris 0:0ab65a1aef12 4
chris 0:0ab65a1aef12 5 Permission is hereby granted, free of charge, to any person obtaining a copy
chris 0:0ab65a1aef12 6 of this software and associated documentation files (the "Software"), to deal
chris 0:0ab65a1aef12 7 in the Software without restriction, including without limitation the rights
chris 0:0ab65a1aef12 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
chris 0:0ab65a1aef12 9 copies of the Software, and to permit persons to whom the Software is
chris 0:0ab65a1aef12 10 furnished to do so, subject to the following conditions:
chris 0:0ab65a1aef12 11
chris 0:0ab65a1aef12 12 The above copyright notice and this permission notice shall be included in
chris 0:0ab65a1aef12 13 all copies or substantial portions of the Software.
chris 0:0ab65a1aef12 14
chris 0:0ab65a1aef12 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
chris 0:0ab65a1aef12 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
chris 0:0ab65a1aef12 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
chris 0:0ab65a1aef12 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
chris 0:0ab65a1aef12 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
chris 0:0ab65a1aef12 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
chris 0:0ab65a1aef12 21 THE SOFTWARE.
chris 0:0ab65a1aef12 22 */
chris 0:0ab65a1aef12 23
chris 0:0ab65a1aef12 24 #include "mbed.h"
chris 0:0ab65a1aef12 25 #include "USBHost.h"
chris 0:0ab65a1aef12 26
chris 0:0ab65a1aef12 27 // Config (default uses x bytes)
chris 0:0ab65a1aef12 28 #define MAX_DEVICES 8 // Max number of devices
chris 0:0ab65a1aef12 29 #define MAX_ENDPOINTS_TOTAL 16 // Max number of endpoints total
chris 0:0ab65a1aef12 30 #define MAX_ENDPOINTS_PER_DEVICE 8 // Max number of endpoints for any one device
chris 0:0ab65a1aef12 31
chris 0:0ab65a1aef12 32 #define USBLOG 1
chris 0:0ab65a1aef12 33 #if USBLOG
chris 0:0ab65a1aef12 34 #define LOG(...) printf(__VA_ARGS__)
chris 0:0ab65a1aef12 35 #else
chris 0:0ab65a1aef12 36 #define LOG(...) do {} while(0)
chris 0:0ab65a1aef12 37 #endif
chris 0:0ab65a1aef12 38
chris 0:0ab65a1aef12 39 // USB host structures
chris 0:0ab65a1aef12 40
chris 0:0ab65a1aef12 41 #define USB_RAM_SIZE 16*1024 // AHB SRAM block 1 TODO MACHINE DEPENDENT
chris 0:0ab65a1aef12 42 #define USB_RAM_BASE 0x2007C000
chris 0:0ab65a1aef12 43
chris 0:0ab65a1aef12 44 #define TOKEN_SETUP 0
chris 0:0ab65a1aef12 45 #define TOKEN_IN 1
chris 0:0ab65a1aef12 46 #define TOKEN_OUT 2
chris 0:0ab65a1aef12 47
chris 0:0ab65a1aef12 48 // Status flags from hub
chris 0:0ab65a1aef12 49 #define PORT_CONNECTION 0
chris 0:0ab65a1aef12 50 #define PORT_ENABLE 1
chris 0:0ab65a1aef12 51 #define PORT_SUSPEND 2
chris 0:0ab65a1aef12 52 #define PORT_OVER_CURRENT 3
chris 0:0ab65a1aef12 53 #define PORT_RESET 4
chris 0:0ab65a1aef12 54 #define PORT_POWER 8
chris 0:0ab65a1aef12 55 #define PORT_LOW_SPEED 9
chris 0:0ab65a1aef12 56
chris 0:0ab65a1aef12 57 #define C_PORT_CONNECTION 16
chris 0:0ab65a1aef12 58 #define C_PORT_ENABLE 17
chris 0:0ab65a1aef12 59 #define C_PORT_SUSPEND 18
chris 0:0ab65a1aef12 60 #define C_PORT_OVER_CURRENT 19
chris 0:0ab65a1aef12 61 #define C_PORT_RESET 20
chris 0:0ab65a1aef12 62
chris 0:0ab65a1aef12 63 typedef struct {
chris 0:0ab65a1aef12 64 u8 bm_request_type;
chris 0:0ab65a1aef12 65 u8 b_request;
chris 0:0ab65a1aef12 66 u16 w_value;
chris 0:0ab65a1aef12 67 u16 w_index;
chris 0:0ab65a1aef12 68 u16 w_length;
chris 0:0ab65a1aef12 69 } Setup;
chris 0:0ab65a1aef12 70
chris 0:0ab65a1aef12 71
chris 0:0ab65a1aef12 72 // Hub stuff is kept private just to keep api simple
chris 0:0ab65a1aef12 73 int SetPortFeature(int device, int feature, int index);
chris 0:0ab65a1aef12 74 int ClearPortFeature(int device, int feature, int index);
chris 0:0ab65a1aef12 75 int SetPortPower(int device, int port);
chris 0:0ab65a1aef12 76 int SetPortReset(int device, int port);
chris 0:0ab65a1aef12 77 int GetPortStatus(int device, int port, u32* status);
chris 0:0ab65a1aef12 78
chris 0:0ab65a1aef12 79 //===================================================================
chris 0:0ab65a1aef12 80 //===================================================================
chris 0:0ab65a1aef12 81 // Hardware defines
chris 0:0ab65a1aef12 82
chris 0:0ab65a1aef12 83 // HcControl
chris 0:0ab65a1aef12 84 #define PeriodicListEnable 0x00000004
chris 0:0ab65a1aef12 85 #define IsochronousEnable 0x00000008
chris 0:0ab65a1aef12 86 #define ControlListEnable 0x00000010
chris 0:0ab65a1aef12 87 #define BulkListEnable 0x00000020
chris 0:0ab65a1aef12 88 #define OperationalMask 0x00000080
chris 0:0ab65a1aef12 89 #define HostControllerFunctionalState 0x000000C0
chris 0:0ab65a1aef12 90
chris 0:0ab65a1aef12 91 // HcCommandStatus
chris 0:0ab65a1aef12 92 #define HostControllerReset 0x00000001
chris 0:0ab65a1aef12 93 #define ControlListFilled 0x00000002
chris 0:0ab65a1aef12 94 #define BulkListFilled 0x00000004
chris 0:0ab65a1aef12 95
chris 0:0ab65a1aef12 96 // HcInterruptStatus Register
chris 0:0ab65a1aef12 97 #define WritebackDoneHead 0x00000002
chris 0:0ab65a1aef12 98 #define StartofFrame 0x00000004
chris 0:0ab65a1aef12 99 #define ResumeDetected 0x00000008
chris 0:0ab65a1aef12 100 #define UnrecoverableError 0x00000010
chris 0:0ab65a1aef12 101 #define FrameNumberOverflow 0x00000020
chris 0:0ab65a1aef12 102 #define RootHubStatusChange 0x00000040
chris 0:0ab65a1aef12 103 #define OwnershipChange 0x00000080
chris 0:0ab65a1aef12 104 #define MasterInterruptEnable 0x80000000
chris 0:0ab65a1aef12 105
chris 0:0ab65a1aef12 106 // HcRhStatus
chris 0:0ab65a1aef12 107 #define SetGlobalPower 0x00010000
chris 0:0ab65a1aef12 108 #define DeviceRemoteWakeupEnable 0x00008000
chris 0:0ab65a1aef12 109
chris 0:0ab65a1aef12 110 // HcRhPortStatus (hub 0, port 1)
chris 0:0ab65a1aef12 111 #define CurrentConnectStatus 0x00000001
chris 0:0ab65a1aef12 112 #define PortEnableStatus 0x00000002
chris 0:0ab65a1aef12 113 #define PortSuspendStatus 0x00000004
chris 0:0ab65a1aef12 114 #define PortOverCurrentIndicator 0x00000008
chris 0:0ab65a1aef12 115 #define PortResetStatus 0x00000010
chris 0:0ab65a1aef12 116
chris 0:0ab65a1aef12 117 #define PortPowerStatus 0x00000100
chris 0:0ab65a1aef12 118 #define LowspeedDevice 0x00000200
chris 0:0ab65a1aef12 119 #define HighspeedDevice 0x00000400
chris 0:0ab65a1aef12 120
chris 0:0ab65a1aef12 121 #define ConnectStatusChange (CurrentConnectStatus << 16)
chris 0:0ab65a1aef12 122 #define PortResetStatusChange (PortResetStatus << 16)
chris 0:0ab65a1aef12 123
chris 0:0ab65a1aef12 124
chris 0:0ab65a1aef12 125 #define TD_ROUNDING (u32)0x00040000
chris 0:0ab65a1aef12 126 #define TD_SETUP (u32)0x00000000
chris 0:0ab65a1aef12 127 #define TD_IN (u32)0x00100000
chris 0:0ab65a1aef12 128 #define TD_OUT (u32)0x00080000
chris 0:0ab65a1aef12 129 #define TD_DELAY_INT(x) (u32)((x) << 21)
chris 0:0ab65a1aef12 130 #define TD_TOGGLE_0 (u32)0x02000000
chris 0:0ab65a1aef12 131 #define TD_TOGGLE_1 (u32)0x03000000
chris 0:0ab65a1aef12 132 #define TD_CC (u32)0xF0000000
chris 0:0ab65a1aef12 133
chris 0:0ab65a1aef12 134 // HostController EndPoint Descriptor
chris 0:0ab65a1aef12 135 typedef struct {
chris 0:0ab65a1aef12 136 volatile u32 Control;
chris 0:0ab65a1aef12 137 volatile u32 TailTd;
chris 0:0ab65a1aef12 138 volatile u32 HeadTd;
chris 0:0ab65a1aef12 139 volatile u32 Next;
chris 0:0ab65a1aef12 140 } HCED;
chris 0:0ab65a1aef12 141
chris 0:0ab65a1aef12 142 // HostController Transfer Descriptor
chris 0:0ab65a1aef12 143 typedef struct {
chris 0:0ab65a1aef12 144 volatile u32 Control;
chris 0:0ab65a1aef12 145 volatile u32 CurrBufPtr;
chris 0:0ab65a1aef12 146 volatile u32 Next;
chris 0:0ab65a1aef12 147 volatile u32 BufEnd;
chris 0:0ab65a1aef12 148 } HCTD;
chris 0:0ab65a1aef12 149
chris 0:0ab65a1aef12 150 // Host Controller Communication Area
chris 0:0ab65a1aef12 151 typedef struct {
chris 0:0ab65a1aef12 152 volatile u32 InterruptTable[32];
chris 0:0ab65a1aef12 153 volatile u16 FrameNumber;
chris 0:0ab65a1aef12 154 volatile u16 FrameNumberPad;
chris 0:0ab65a1aef12 155 volatile u32 DoneHead;
chris 0:0ab65a1aef12 156 volatile u8 Reserved[120];
chris 0:0ab65a1aef12 157 } HCCA;
chris 0:0ab65a1aef12 158
chris 0:0ab65a1aef12 159 //====================================================================================
chris 0:0ab65a1aef12 160 //====================================================================================
chris 0:0ab65a1aef12 161
chris 0:0ab65a1aef12 162 class HostController;
chris 0:0ab65a1aef12 163 class Endpoint;
chris 0:0ab65a1aef12 164 class Device;
chris 0:0ab65a1aef12 165
chris 0:0ab65a1aef12 166 // must be 3*16 bytes long
chris 0:0ab65a1aef12 167 class Endpoint
chris 0:0ab65a1aef12 168 {
chris 0:0ab65a1aef12 169 public:
chris 0:0ab65a1aef12 170 HCED EndpointDescriptor; // Pointer to EndpointDescriptor == Pointer to Endpoint
chris 0:0ab65a1aef12 171 HCTD TDHead;
chris 0:0ab65a1aef12 172
chris 0:0ab65a1aef12 173 enum State
chris 0:0ab65a1aef12 174 {
chris 0:0ab65a1aef12 175 Free,
chris 0:0ab65a1aef12 176 NotQueued,
chris 0:0ab65a1aef12 177 Idle,
chris 0:0ab65a1aef12 178 SetupQueued,
chris 0:0ab65a1aef12 179 DataQueued,
chris 0:0ab65a1aef12 180 StatusQueued,
chris 0:0ab65a1aef12 181 CallbackPending
chris 0:0ab65a1aef12 182 };
chris 0:0ab65a1aef12 183
chris 0:0ab65a1aef12 184 volatile u8 CurrentState;
chris 0:0ab65a1aef12 185 u8 Flags; // 0x80 In, 0x03 mask endpoint type
chris 0:0ab65a1aef12 186
chris 0:0ab65a1aef12 187 u16 Length;
chris 0:0ab65a1aef12 188 u8* Data;
chris 0:0ab65a1aef12 189 USBCallback Callback; // Must be a multiple of 16 bytes long
chris 0:0ab65a1aef12 190 void* UserData;
chris 0:0ab65a1aef12 191
chris 0:0ab65a1aef12 192 int Address()
chris 0:0ab65a1aef12 193 {
chris 0:0ab65a1aef12 194 int ep = (EndpointDescriptor.Control >> 7) & 0xF;
chris 0:0ab65a1aef12 195 if (ep)
chris 0:0ab65a1aef12 196 ep |= Flags & 0x80;
chris 0:0ab65a1aef12 197 return ep;
chris 0:0ab65a1aef12 198 }
chris 0:0ab65a1aef12 199
chris 0:0ab65a1aef12 200 int Device()
chris 0:0ab65a1aef12 201 {
chris 0:0ab65a1aef12 202 return EndpointDescriptor.Control & 0x7F;
chris 0:0ab65a1aef12 203 }
chris 0:0ab65a1aef12 204
chris 0:0ab65a1aef12 205 int Status()
chris 0:0ab65a1aef12 206 {
chris 0:0ab65a1aef12 207 return (TDHead.Control >> 28) & 0xF;
chris 0:0ab65a1aef12 208 }
chris 0:0ab65a1aef12 209
chris 0:0ab65a1aef12 210 u32 Enqueue(u32 head)
chris 0:0ab65a1aef12 211 {
chris 0:0ab65a1aef12 212 if (CurrentState == NotQueued)
chris 0:0ab65a1aef12 213 {
chris 0:0ab65a1aef12 214 EndpointDescriptor.Next = head;
chris 0:0ab65a1aef12 215 head = (u32)&EndpointDescriptor;
chris 0:0ab65a1aef12 216 CurrentState = Idle;
chris 0:0ab65a1aef12 217 }
chris 0:0ab65a1aef12 218 return head;
chris 0:0ab65a1aef12 219 }
chris 0:0ab65a1aef12 220 };
chris 0:0ab65a1aef12 221
chris 0:0ab65a1aef12 222 class Device
chris 0:0ab65a1aef12 223 {
chris 0:0ab65a1aef12 224 public:
chris 0:0ab65a1aef12 225 u8 _endpointMap[MAX_ENDPOINTS_PER_DEVICE*2];
chris 0:0ab65a1aef12 226 u8 Hub;
chris 0:0ab65a1aef12 227 u8 Port;
chris 0:0ab65a1aef12 228 u8 Addr;
chris 0:0ab65a1aef12 229 u8 Pad;
chris 0:0ab65a1aef12 230
chris 0:0ab65a1aef12 231 // Only if this device is a hub
chris 0:0ab65a1aef12 232 u8 HubPortCount; // nonzero if this is a hub
chris 0:0ab65a1aef12 233 u8 HubInterruptData;
chris 0:0ab65a1aef12 234 u8 HubMap;
chris 0:0ab65a1aef12 235 u8 HubMask;
chris 0:0ab65a1aef12 236
chris 0:0ab65a1aef12 237 int Flags; // 1 = Disconnected
chris 0:0ab65a1aef12 238
chris 0:0ab65a1aef12 239 Setup SetupBuffer;
chris 0:0ab65a1aef12 240
chris 0:0ab65a1aef12 241 // Allocate endpoint zero
chris 0:0ab65a1aef12 242 int Init(DeviceDescriptor* d, int hub, int port, int addr, int lowSpeed)
chris 0:0ab65a1aef12 243 {
chris 0:0ab65a1aef12 244 Hub = hub;
chris 0:0ab65a1aef12 245 Port = port;
chris 0:0ab65a1aef12 246 Addr = addr;
chris 0:0ab65a1aef12 247 Flags = lowSpeed;
chris 0:0ab65a1aef12 248 memset(_endpointMap,0xFF,sizeof(_endpointMap));
chris 0:0ab65a1aef12 249 return 0;
chris 0:0ab65a1aef12 250 }
chris 0:0ab65a1aef12 251
chris 0:0ab65a1aef12 252 int SetEndpointIndex(int ep, int endpointIndex)
chris 0:0ab65a1aef12 253 {
chris 0:0ab65a1aef12 254 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
chris 0:0ab65a1aef12 255 {
chris 0:0ab65a1aef12 256 if (_endpointMap[i] == 0xFF) // Add endpoint to map
chris 0:0ab65a1aef12 257 {
chris 0:0ab65a1aef12 258 _endpointMap[i] = ep;
chris 0:0ab65a1aef12 259 _endpointMap[i+1] = endpointIndex;
chris 0:0ab65a1aef12 260 return 0;
chris 0:0ab65a1aef12 261 }
chris 0:0ab65a1aef12 262 }
chris 0:0ab65a1aef12 263 return ERR_ENDPOINT_NONE_LEFT;
chris 0:0ab65a1aef12 264 }
chris 0:0ab65a1aef12 265
chris 0:0ab65a1aef12 266 int GetEndpointIndex(int ep)
chris 0:0ab65a1aef12 267 {
chris 0:0ab65a1aef12 268 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
chris 0:0ab65a1aef12 269 {
chris 0:0ab65a1aef12 270 if (_endpointMap[i] == ep)
chris 0:0ab65a1aef12 271 return _endpointMap[i+1];
chris 0:0ab65a1aef12 272 if (_endpointMap[i] == 0xFF)
chris 0:0ab65a1aef12 273 break;
chris 0:0ab65a1aef12 274 }
chris 0:0ab65a1aef12 275 return -1;
chris 0:0ab65a1aef12 276 }
chris 0:0ab65a1aef12 277 };
chris 0:0ab65a1aef12 278
chris 0:0ab65a1aef12 279 class HostController
chris 0:0ab65a1aef12 280 {
chris 0:0ab65a1aef12 281 public:
chris 0:0ab65a1aef12 282 HCCA CommunicationArea;
chris 0:0ab65a1aef12 283 Endpoint Endpoints[MAX_ENDPOINTS_TOTAL]; // Multiple of 16
chris 0:0ab65a1aef12 284
chris 0:0ab65a1aef12 285 Endpoint EndpointZero; // For device enumeration
chris 0:0ab65a1aef12 286 HCTD _commonTail;
chris 0:0ab65a1aef12 287 Setup _setupZero;
chris 0:0ab65a1aef12 288
chris 0:0ab65a1aef12 289 Device Devices[MAX_DEVICES];
chris 0:0ab65a1aef12 290 u32 _frameNumber; // 32 bit ms counter
chris 0:0ab65a1aef12 291
chris 0:0ab65a1aef12 292 u8 _callbacksPending; // Endpoints with callbacks are pending, set from ISR via ProcessDoneQueue
chris 0:0ab65a1aef12 293 u8 _rootHubStatusChange; // Root hub status has changed, set from ISR
chris 0:0ab65a1aef12 294 u8 _unused0;
chris 0:0ab65a1aef12 295 u8 _unused1;
chris 0:0ab65a1aef12 296
chris 0:0ab65a1aef12 297 u8 _connectPending; // Reset has initiated a connect
chris 0:0ab65a1aef12 298 u8 _connectCountdown; // Number of ms left after reset before we can connect
chris 0:0ab65a1aef12 299 u8 _connectHub; // Will connect on this hub
chris 0:0ab65a1aef12 300 u8 _connectPort; // ... and this port
chris 0:0ab65a1aef12 301
chris 0:0ab65a1aef12 302 u8 SRAM[0]; // Start of free SRAM
chris 0:0ab65a1aef12 303
chris 0:0ab65a1aef12 304 void Loop()
chris 0:0ab65a1aef12 305 {
chris 0:0ab65a1aef12 306 u16 elapsed = CommunicationArea.FrameNumber - (u16)_frameNumber; // extend to 32 bits
chris 0:0ab65a1aef12 307 _frameNumber += elapsed;
chris 0:0ab65a1aef12 308
chris 0:0ab65a1aef12 309 // Do callbacks, if any
chris 0:0ab65a1aef12 310 while (_callbacksPending)
chris 0:0ab65a1aef12 311 {
chris 0:0ab65a1aef12 312 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
chris 0:0ab65a1aef12 313 {
chris 0:0ab65a1aef12 314 Endpoint* endpoint = Endpoints + i;
chris 0:0ab65a1aef12 315 if (endpoint->CurrentState == Endpoint::CallbackPending)
chris 0:0ab65a1aef12 316 {
chris 0:0ab65a1aef12 317 _callbacksPending--;
chris 0:0ab65a1aef12 318 endpoint->CurrentState = Endpoint::Idle;
chris 0:0ab65a1aef12 319 endpoint->Callback(endpoint->Device(),endpoint->Address(),endpoint->Status(),endpoint->Data,endpoint->Length,endpoint->UserData);
chris 0:0ab65a1aef12 320 }
chris 0:0ab65a1aef12 321 }
chris 0:0ab65a1aef12 322 }
chris 0:0ab65a1aef12 323
chris 0:0ab65a1aef12 324 // Deal with changes on the root hub
chris 0:0ab65a1aef12 325 if (_rootHubStatusChange)
chris 0:0ab65a1aef12 326 {
chris 0:0ab65a1aef12 327 u32 status = LPC_USB->HcRhPortStatus1;
chris 0:0ab65a1aef12 328 _rootHubStatusChange = 0;
chris 0:0ab65a1aef12 329 if (status >> 16)
chris 0:0ab65a1aef12 330 {
chris 0:0ab65a1aef12 331 HubStatusChange(0,1,status);
chris 0:0ab65a1aef12 332 LPC_USB->HcRhPortStatus1 = status & 0xFFFF0000; // clear status changes
chris 0:0ab65a1aef12 333 }
chris 0:0ab65a1aef12 334 }
chris 0:0ab65a1aef12 335
chris 0:0ab65a1aef12 336 // Connect after reset timeout
chris 0:0ab65a1aef12 337 if (_connectCountdown)
chris 0:0ab65a1aef12 338 {
chris 0:0ab65a1aef12 339 if (elapsed >= _connectCountdown)
chris 0:0ab65a1aef12 340 {
chris 0:0ab65a1aef12 341 _connectCountdown = 0;
chris 0:0ab65a1aef12 342 Connect(_connectHub,_connectPort & 0x7F,_connectPort & 0x80);
chris 0:0ab65a1aef12 343 } else
chris 0:0ab65a1aef12 344 _connectCountdown -= elapsed;
chris 0:0ab65a1aef12 345 }
chris 0:0ab65a1aef12 346 }
chris 0:0ab65a1aef12 347
chris 0:0ab65a1aef12 348 // HubInterrupt - bitmap in dev->HubInterruptData
chris 0:0ab65a1aef12 349 void HubInterrupt(int device)
chris 0:0ab65a1aef12 350 {
chris 0:0ab65a1aef12 351 Device* dev = &Devices[device-1];
chris 0:0ab65a1aef12 352 for (int i = 0; i < dev->HubPortCount; i++)
chris 0:0ab65a1aef12 353 {
chris 0:0ab65a1aef12 354 int port = i+1;
chris 0:0ab65a1aef12 355 if (dev->HubInterruptData & (1 << port))
chris 0:0ab65a1aef12 356 {
chris 0:0ab65a1aef12 357 u32 status = 0;
chris 0:0ab65a1aef12 358 GetPortStatus(device,port,&status);
chris 0:0ab65a1aef12 359 if (status >> 16)
chris 0:0ab65a1aef12 360 {
chris 0:0ab65a1aef12 361 if (_connectPending && (status & ConnectStatusChange))
chris 0:0ab65a1aef12 362 continue; // Don't connect again until previous device has been added and addressed
chris 0:0ab65a1aef12 363
chris 0:0ab65a1aef12 364 HubStatusChange(device,port,status);
chris 0:0ab65a1aef12 365 if (status & ConnectStatusChange)
chris 0:0ab65a1aef12 366 ClearPortFeature(device,C_PORT_CONNECTION,port);
chris 0:0ab65a1aef12 367 if (status & PortResetStatusChange)
chris 0:0ab65a1aef12 368 ClearPortFeature(device,C_PORT_RESET,port);
chris 0:0ab65a1aef12 369 }
chris 0:0ab65a1aef12 370 }
chris 0:0ab65a1aef12 371 }
chris 0:0ab65a1aef12 372 }
chris 0:0ab65a1aef12 373
chris 0:0ab65a1aef12 374 static void HubInterruptCallback(int device, int endpoint, int status, u8* data, int len, void* userData)
chris 0:0ab65a1aef12 375 {
chris 0:0ab65a1aef12 376 HostController* controller = (HostController*)userData;
chris 0:0ab65a1aef12 377 if (status == 0)
chris 0:0ab65a1aef12 378 controller->HubInterrupt(device);
chris 0:0ab65a1aef12 379 USBInterruptTransfer(device,endpoint,data,1,HubInterruptCallback,userData);
chris 0:0ab65a1aef12 380 }
chris 0:0ab65a1aef12 381
chris 0:0ab65a1aef12 382 int InitHub(int device)
chris 0:0ab65a1aef12 383 {
chris 0:0ab65a1aef12 384 u8 buf[16];
chris 0:0ab65a1aef12 385 int r= USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_DEVICE,GET_DESCRIPTOR,(DESCRIPTOR_TYPE_HUB << 8),0,buf,sizeof(buf));
chris 0:0ab65a1aef12 386 if (r < 0)
chris 0:0ab65a1aef12 387 return ERR_HUB_INIT_FAILED;
chris 0:0ab65a1aef12 388
chris 0:0ab65a1aef12 389 // turn on power on the hubs ports
chris 0:0ab65a1aef12 390 Device* dev = &Devices[device-1];
chris 0:0ab65a1aef12 391 int ports = buf[2];
chris 0:0ab65a1aef12 392 dev->HubPortCount = ports;
chris 0:0ab65a1aef12 393 for (int i = 0; i < ports; i++)
chris 0:0ab65a1aef12 394 SetPortPower(device,i+1);
chris 0:0ab65a1aef12 395
chris 0:0ab65a1aef12 396 // Enable hub change interrupts
chris 0:0ab65a1aef12 397 return USBInterruptTransfer(device,0x81,&dev->HubInterruptData,1,HubInterruptCallback,this);
chris 0:0ab65a1aef12 398 }
chris 0:0ab65a1aef12 399
chris 0:0ab65a1aef12 400 int AddEndpoint(int device, int ep, int attributes, int maxPacketSize, int interval)
chris 0:0ab65a1aef12 401 {
chris 0:0ab65a1aef12 402 LOG("AddEndpoint D:%02X A:%02X T:%02X P:%04X I:%02X\n",device,ep,attributes,maxPacketSize,interval);
chris 0:0ab65a1aef12 403 Device* dev = &Devices[device-1];
chris 0:0ab65a1aef12 404 Endpoint* endpoint = AllocateEndpoint(device,ep,attributes,maxPacketSize);
chris 0:0ab65a1aef12 405 if (!endpoint)
chris 0:0ab65a1aef12 406 return ERR_ENDPOINT_NONE_LEFT;
chris 0:0ab65a1aef12 407 dev->SetEndpointIndex(ep,endpoint - Endpoints);
chris 0:0ab65a1aef12 408 endpoint->EndpointDescriptor.Control |= dev->Flags; // Map in slow speed
chris 0:0ab65a1aef12 409 return 0; // TODO ed->bInterval
chris 0:0ab65a1aef12 410 }
chris 0:0ab65a1aef12 411
chris 0:0ab65a1aef12 412 int AddEndpoint(int device, EndpointDescriptor* ed)
chris 0:0ab65a1aef12 413 {
chris 0:0ab65a1aef12 414 return AddEndpoint(device,ed->bEndpointAddress,ed->bmAttributes,ed->wMaxPacketSize,ed->bInterval);
chris 0:0ab65a1aef12 415 }
chris 0:0ab65a1aef12 416
chris 0:0ab65a1aef12 417 // allocate a endpoint
chris 0:0ab65a1aef12 418 Endpoint* AllocateEndpoint(int device, int endpointAddress, int type, int maxPacketSize)
chris 0:0ab65a1aef12 419 {
chris 0:0ab65a1aef12 420 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
chris 0:0ab65a1aef12 421 {
chris 0:0ab65a1aef12 422 Endpoint* ep = &Endpoints[i];
chris 0:0ab65a1aef12 423 if (ep->CurrentState == 0)
chris 0:0ab65a1aef12 424 {
chris 0:0ab65a1aef12 425 //LOG("Allocated endpoint %d to %02X:%02X\n",i,device,endpointAddress);
chris 0:0ab65a1aef12 426 ep->Flags = (endpointAddress & 0x80) | (type & 3);
chris 0:0ab65a1aef12 427 ep->CurrentState = Endpoint::NotQueued;
chris 0:0ab65a1aef12 428 ep->EndpointDescriptor.Control = (maxPacketSize << 16) | ((endpointAddress & 0x7F) << 7) | device;
chris 0:0ab65a1aef12 429 return ep;
chris 0:0ab65a1aef12 430 }
chris 0:0ab65a1aef12 431 }
chris 0:0ab65a1aef12 432 return 0;
chris 0:0ab65a1aef12 433 }
chris 0:0ab65a1aef12 434
chris 0:0ab65a1aef12 435 Endpoint* GetEndpoint(int device, int ep)
chris 0:0ab65a1aef12 436 {
chris 0:0ab65a1aef12 437 if (device == 0)
chris 0:0ab65a1aef12 438 {
chris 0:0ab65a1aef12 439 //printf("WARNING: USING DEVICE 0\n");
chris 0:0ab65a1aef12 440 return &EndpointZero;
chris 0:0ab65a1aef12 441 }
chris 0:0ab65a1aef12 442 if (device > MAX_DEVICES)
chris 0:0ab65a1aef12 443 return 0;
chris 0:0ab65a1aef12 444 int i = Devices[device-1].GetEndpointIndex(ep);
chris 0:0ab65a1aef12 445 if (i == -1)
chris 0:0ab65a1aef12 446 return 0;
chris 0:0ab65a1aef12 447 return Endpoints + i;
chris 0:0ab65a1aef12 448 }
chris 0:0ab65a1aef12 449
chris 0:0ab65a1aef12 450 int Transfer(Endpoint* endpoint, int token, u8* data, int len, int state)
chris 0:0ab65a1aef12 451 {
chris 0:0ab65a1aef12 452 //LOG("Transfer %02X T:%d Len:%d S:%d\n",endpoint->Address(),token,len,state);
chris 0:0ab65a1aef12 453
chris 0:0ab65a1aef12 454 int toggle = 0;
chris 0:0ab65a1aef12 455 if (endpoint->Address() == 0)
chris 0:0ab65a1aef12 456 toggle = (token == TOKEN_SETUP) ? TD_TOGGLE_0 : TD_TOGGLE_1;
chris 0:0ab65a1aef12 457
chris 0:0ab65a1aef12 458 if (token != TOKEN_SETUP)
chris 0:0ab65a1aef12 459 token = (token == TOKEN_IN ? TD_IN : TD_OUT);
chris 0:0ab65a1aef12 460
chris 0:0ab65a1aef12 461 HCTD* head = &endpoint->TDHead;
chris 0:0ab65a1aef12 462 HCTD* tail = &_commonTail;
chris 0:0ab65a1aef12 463
chris 0:0ab65a1aef12 464 head->Control = TD_ROUNDING | token | TD_DELAY_INT(0) | toggle | TD_CC;
chris 0:0ab65a1aef12 465 head->CurrBufPtr = (u32)data;
chris 0:0ab65a1aef12 466 head->BufEnd = (u32)(data + len - 1);
chris 0:0ab65a1aef12 467 head->Next = (u32)tail;
chris 0:0ab65a1aef12 468
chris 0:0ab65a1aef12 469 HCED* ed = &endpoint->EndpointDescriptor;
chris 0:0ab65a1aef12 470 ed->HeadTd = (u32)head | (ed->HeadTd & 0x00000002); // carry toggle
chris 0:0ab65a1aef12 471 ed->TailTd = (u32)tail;
chris 0:0ab65a1aef12 472
chris 0:0ab65a1aef12 473 //HCTD* td = head;
chris 0:0ab65a1aef12 474 //LOG("%04X TD %08X %08X %08X Next:%08X\n",CommunicationArea.FrameNumber,td->Control,td->CurrBufPtr,td->BufEnd,td->Next);
chris 0:0ab65a1aef12 475 //LOG("%04X ED %08X %08X %08X\n",CommunicationArea.FrameNumber,ed->Control,ed->HeadTd,ed->TailTd);
chris 0:0ab65a1aef12 476
chris 0:0ab65a1aef12 477 switch (endpoint->Flags & 3)
chris 0:0ab65a1aef12 478 {
chris 0:0ab65a1aef12 479 case ENDPOINT_CONTROL:
chris 0:0ab65a1aef12 480 LPC_USB->HcControlHeadED = endpoint->Enqueue(LPC_USB->HcControlHeadED); // May change state NotQueued->Idle
chris 0:0ab65a1aef12 481 endpoint->CurrentState = state; // Get in before an int
chris 0:0ab65a1aef12 482 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | ControlListFilled;
chris 0:0ab65a1aef12 483 LPC_USB->HcControl = LPC_USB->HcControl | ControlListEnable;
chris 0:0ab65a1aef12 484 break;
chris 0:0ab65a1aef12 485
chris 0:0ab65a1aef12 486 case ENDPOINT_BULK:
chris 0:0ab65a1aef12 487 LPC_USB->HcBulkHeadED = endpoint->Enqueue(LPC_USB->HcBulkHeadED);
chris 0:0ab65a1aef12 488 endpoint->CurrentState = state;
chris 0:0ab65a1aef12 489 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | BulkListFilled;
chris 0:0ab65a1aef12 490 LPC_USB->HcControl = LPC_USB->HcControl | BulkListEnable;
chris 0:0ab65a1aef12 491 break;
chris 0:0ab65a1aef12 492
chris 0:0ab65a1aef12 493 case ENDPOINT_INTERRUPT:
chris 0:0ab65a1aef12 494 CommunicationArea.InterruptTable[0] = endpoint->Enqueue(CommunicationArea.InterruptTable[0]);
chris 0:0ab65a1aef12 495 endpoint->CurrentState = state;
chris 0:0ab65a1aef12 496 LPC_USB->HcControl |= PeriodicListEnable;
chris 0:0ab65a1aef12 497 break;
chris 0:0ab65a1aef12 498 }
chris 0:0ab65a1aef12 499 return 0;
chris 0:0ab65a1aef12 500 }
chris 0:0ab65a1aef12 501
chris 0:0ab65a1aef12 502 // Remove an endpoint from an active queue
chris 0:0ab65a1aef12 503 bool Remove(HCED* ed, volatile HCED** queue)
chris 0:0ab65a1aef12 504 {
chris 0:0ab65a1aef12 505 if (*queue == 0)
chris 0:0ab65a1aef12 506 return false;
chris 0:0ab65a1aef12 507 if (*queue == (volatile HCED*)ed)
chris 0:0ab65a1aef12 508 {
chris 0:0ab65a1aef12 509 *queue = (volatile HCED*)ed->Next; // At head of queue
chris 0:0ab65a1aef12 510 return true;
chris 0:0ab65a1aef12 511 }
chris 0:0ab65a1aef12 512
chris 0:0ab65a1aef12 513 volatile HCED* head = *queue;
chris 0:0ab65a1aef12 514 while (head)
chris 0:0ab65a1aef12 515 {
chris 0:0ab65a1aef12 516 if (head->Next == (u32)ed)
chris 0:0ab65a1aef12 517 {
chris 0:0ab65a1aef12 518 head->Next = ed->Next;
chris 0:0ab65a1aef12 519 return true;
chris 0:0ab65a1aef12 520 }
chris 0:0ab65a1aef12 521 head = (volatile HCED*)head->Next;
chris 0:0ab65a1aef12 522 }
chris 0:0ab65a1aef12 523 return false;
chris 0:0ab65a1aef12 524 }
chris 0:0ab65a1aef12 525
chris 0:0ab65a1aef12 526 void Release(Endpoint* endpoint)
chris 0:0ab65a1aef12 527 {
chris 0:0ab65a1aef12 528 if (endpoint->CurrentState == Endpoint::NotQueued)
chris 0:0ab65a1aef12 529 {
chris 0:0ab65a1aef12 530 // Never event used it, nothing to do
chris 0:0ab65a1aef12 531 }
chris 0:0ab65a1aef12 532 else
chris 0:0ab65a1aef12 533 {
chris 0:0ab65a1aef12 534 HCED* ed = (HCED*)endpoint;
chris 0:0ab65a1aef12 535 ed->Control |= 0x4000; // SKIP
chris 0:0ab65a1aef12 536 switch (endpoint->Flags & 0x03)
chris 0:0ab65a1aef12 537 {
chris 0:0ab65a1aef12 538 case ENDPOINT_CONTROL:
chris 0:0ab65a1aef12 539 Remove(ed,(volatile HCED**)&LPC_USB->HcControlHeadED);
chris 0:0ab65a1aef12 540 break;
chris 0:0ab65a1aef12 541 case ENDPOINT_BULK:
chris 0:0ab65a1aef12 542 Remove(ed,(volatile HCED**)&LPC_USB->HcBulkHeadED);
chris 0:0ab65a1aef12 543 break;
chris 0:0ab65a1aef12 544 case ENDPOINT_INTERRUPT:
chris 0:0ab65a1aef12 545 for (int i = 0; i < 32; i++)
chris 0:0ab65a1aef12 546 Remove(ed,(volatile HCED**)&CommunicationArea.InterruptTable[i]);
chris 0:0ab65a1aef12 547 break;
chris 0:0ab65a1aef12 548 }
chris 0:0ab65a1aef12 549
chris 0:0ab65a1aef12 550 u16 fn = CommunicationArea.FrameNumber;
chris 0:0ab65a1aef12 551 while (fn == CommunicationArea.FrameNumber)
chris 0:0ab65a1aef12 552 ; // Wait for next frame
chris 0:0ab65a1aef12 553
chris 0:0ab65a1aef12 554 }
chris 0:0ab65a1aef12 555
chris 0:0ab65a1aef12 556 // In theory, the endpoint is now dead.
chris 0:0ab65a1aef12 557 // TODO: Will Callbacks ever be pending? BUGBUG
chris 0:0ab65a1aef12 558 memset(endpoint,0,sizeof(Endpoint));
chris 0:0ab65a1aef12 559 }
chris 0:0ab65a1aef12 560
chris 0:0ab65a1aef12 561 // Pop the last TD from the list
chris 0:0ab65a1aef12 562 HCTD* Reverse(HCTD* current)
chris 0:0ab65a1aef12 563 {
chris 0:0ab65a1aef12 564 HCTD *result = NULL,*temp;
chris 0:0ab65a1aef12 565 while (current)
chris 0:0ab65a1aef12 566 {
chris 0:0ab65a1aef12 567 temp = (HCTD*)current->Next;
chris 0:0ab65a1aef12 568 current->Next = (u32)result;
chris 0:0ab65a1aef12 569 result = current;
chris 0:0ab65a1aef12 570 current = temp;
chris 0:0ab65a1aef12 571 }
chris 0:0ab65a1aef12 572 return result;
chris 0:0ab65a1aef12 573 }
chris 0:0ab65a1aef12 574
chris 0:0ab65a1aef12 575 // Called from interrupt...
chris 0:0ab65a1aef12 576 // Control endpoints use a state machine to progress through the transfers
chris 0:0ab65a1aef12 577 void ProcessDoneQueue(u32 tdList)
chris 0:0ab65a1aef12 578 {
chris 0:0ab65a1aef12 579 HCTD* list = Reverse((HCTD*)tdList);
chris 0:0ab65a1aef12 580 while (list)
chris 0:0ab65a1aef12 581 {
chris 0:0ab65a1aef12 582 Endpoint* endpoint = (Endpoint*)(list-1);
chris 0:0ab65a1aef12 583 list = (HCTD*)list->Next;
chris 0:0ab65a1aef12 584 int ep = endpoint->Address();
chris 0:0ab65a1aef12 585 bool in = endpoint->Flags & 0x80;
chris 0:0ab65a1aef12 586 int status = (endpoint->TDHead.Control >> 28) & 0xF;
chris 0:0ab65a1aef12 587
chris 0:0ab65a1aef12 588 //LOG("ProcessDoneQueue %02X %08X\n",ep,endpoint->TDHead.Control);
chris 0:0ab65a1aef12 589
chris 0:0ab65a1aef12 590 if (status != 0)
chris 0:0ab65a1aef12 591 {
chris 0:0ab65a1aef12 592 LOG("ProcessDoneQueue status %02X %d\n",ep,status);
chris 0:0ab65a1aef12 593 endpoint->CurrentState = Endpoint::Idle;
chris 0:0ab65a1aef12 594 } else {
chris 0:0ab65a1aef12 595 switch (endpoint->CurrentState)
chris 0:0ab65a1aef12 596 {
chris 0:0ab65a1aef12 597 case Endpoint::SetupQueued:
chris 0:0ab65a1aef12 598 if (endpoint->Length == 0)
chris 0:0ab65a1aef12 599 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Skip Data Phase
chris 0:0ab65a1aef12 600 else
chris 0:0ab65a1aef12 601 Transfer(endpoint,in ? TOKEN_IN : TOKEN_OUT,endpoint->Data,endpoint->Length, Endpoint::DataQueued); // Setup is done, now Data
chris 0:0ab65a1aef12 602 break;
chris 0:0ab65a1aef12 603
chris 0:0ab65a1aef12 604 case Endpoint::DataQueued:
chris 0:0ab65a1aef12 605 if (endpoint->TDHead.CurrBufPtr)
chris 0:0ab65a1aef12 606 endpoint->Length = endpoint->TDHead.CurrBufPtr - (u32)endpoint->Data;
chris 0:0ab65a1aef12 607
chris 0:0ab65a1aef12 608 if (ep == 0)
chris 0:0ab65a1aef12 609 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Data is done, now Status, Control only
chris 0:0ab65a1aef12 610 else
chris 0:0ab65a1aef12 611 endpoint->CurrentState = Endpoint::Idle;
chris 0:0ab65a1aef12 612 break;
chris 0:0ab65a1aef12 613
chris 0:0ab65a1aef12 614 case Endpoint::StatusQueued: // Transaction is done
chris 0:0ab65a1aef12 615 endpoint->CurrentState = Endpoint::Idle;
chris 0:0ab65a1aef12 616 break;
chris 0:0ab65a1aef12 617 }
chris 0:0ab65a1aef12 618 }
chris 0:0ab65a1aef12 619
chris 0:0ab65a1aef12 620 // Complete, flag if we need a callback
chris 0:0ab65a1aef12 621 if (endpoint->Callback && endpoint->CurrentState == Endpoint::Idle)
chris 0:0ab65a1aef12 622 {
chris 0:0ab65a1aef12 623 endpoint->CurrentState = Endpoint::CallbackPending;
chris 0:0ab65a1aef12 624 _callbacksPending++;
chris 0:0ab65a1aef12 625 }
chris 0:0ab65a1aef12 626 }
chris 0:0ab65a1aef12 627 }
chris 0:0ab65a1aef12 628
chris 0:0ab65a1aef12 629 // Hack to reset devices that don't want to connect
chris 0:0ab65a1aef12 630 int AddDevice(int hub, int port, bool isLowSpeed)
chris 0:0ab65a1aef12 631 {
chris 0:0ab65a1aef12 632 int device = AddDeviceCore(hub,port,isLowSpeed);
chris 0:0ab65a1aef12 633 if (device < 0)
chris 0:0ab65a1aef12 634 {
chris 0:0ab65a1aef12 635 LOG("========RETRY ADD DEVICE========\n"); // This will go for ever.. TODO power cycle root?
chris 0:0ab65a1aef12 636 Disconnect(hub,port); // Could not read descriptor at assigned address, reset this port and try again
chris 0:0ab65a1aef12 637 ResetPort(hub,port); // Cheap bluetooth dongles often need this on a hotplug
chris 0:0ab65a1aef12 638 return -1;
chris 0:0ab65a1aef12 639 }
chris 0:0ab65a1aef12 640 return device;
chris 0:0ab65a1aef12 641 }
chris 0:0ab65a1aef12 642
chris 0:0ab65a1aef12 643 int AddDeviceCore(int hub, int port, bool isLowSpeed)
chris 0:0ab65a1aef12 644 {
chris 0:0ab65a1aef12 645 int lowSpeed = isLowSpeed ? 0x2000 : 0;
chris 0:0ab65a1aef12 646 DeviceDescriptor desc;
chris 0:0ab65a1aef12 647 EndpointZero.EndpointDescriptor.Control = (8 << 16) | lowSpeed; // MaxPacketSize == 8
chris 0:0ab65a1aef12 648 int r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,8);
chris 0:0ab65a1aef12 649 if (r < 0)
chris 0:0ab65a1aef12 650 {
chris 0:0ab65a1aef12 651 LOG("FAILED TO LOAD DESCRIPTOR FOR DEVICE 0\n");
chris 0:0ab65a1aef12 652 return r;
chris 0:0ab65a1aef12 653 }
chris 0:0ab65a1aef12 654
chris 0:0ab65a1aef12 655 EndpointZero.EndpointDescriptor.Control = (desc.bMaxPacketSize << 16) | lowSpeed; // Actual MaxPacketSize
chris 0:0ab65a1aef12 656 r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
chris 0:0ab65a1aef12 657 if (r < 0)
chris 0:0ab65a1aef12 658 return r;
chris 0:0ab65a1aef12 659
chris 0:0ab65a1aef12 660 LOG("\nClass %02X found %04X:%04X\n\n",desc.bDeviceClass,desc.idVendor,desc.idProduct);
chris 0:0ab65a1aef12 661
chris 0:0ab65a1aef12 662 // Now assign the device an address, move off EndpointZero
chris 0:0ab65a1aef12 663 int device = 0;
chris 0:0ab65a1aef12 664 for (int i = 0; i < MAX_DEVICES; i++)
chris 0:0ab65a1aef12 665 {
chris 0:0ab65a1aef12 666 if (Devices[i].Port == 0)
chris 0:0ab65a1aef12 667 {
chris 0:0ab65a1aef12 668 device = i+1;
chris 0:0ab65a1aef12 669 break;
chris 0:0ab65a1aef12 670 }
chris 0:0ab65a1aef12 671 }
chris 0:0ab65a1aef12 672 if (!device)
chris 0:0ab65a1aef12 673 return ERR_DEVICE_NONE_LEFT;
chris 0:0ab65a1aef12 674
chris 0:0ab65a1aef12 675 r = SetAddress(0,device);
chris 0:0ab65a1aef12 676 if (r)
chris 0:0ab65a1aef12 677 return r;
chris 0:0ab65a1aef12 678 DelayMS(2);
chris 0:0ab65a1aef12 679
chris 0:0ab65a1aef12 680 // Now at a nonzero address, create control endpoint
chris 0:0ab65a1aef12 681 Device* dev = &Devices[device-1];
chris 0:0ab65a1aef12 682 dev->Init(&desc,hub,port,device,lowSpeed);
chris 0:0ab65a1aef12 683 AddEndpoint(device,0,ENDPOINT_CONTROL,desc.bMaxPacketSize,0);
chris 0:0ab65a1aef12 684 _connectPending = 0;
chris 0:0ab65a1aef12 685
chris 0:0ab65a1aef12 686 // Verify this all works
chris 0:0ab65a1aef12 687 r = GetDescriptor(device,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
chris 0:0ab65a1aef12 688 if (r < 0)
chris 0:0ab65a1aef12 689 return r;
chris 0:0ab65a1aef12 690
chris 0:0ab65a1aef12 691 // Set to interface 0 by default
chris 0:0ab65a1aef12 692 // Calls LoadDevice if interface is found
chris 0:0ab65a1aef12 693 r = SetConfigurationAndInterface(device,1,0,&desc);
chris 0:0ab65a1aef12 694
chris 0:0ab65a1aef12 695 if (desc.bDeviceClass == CLASS_HUB)
chris 0:0ab65a1aef12 696 InitHub(device); // Handle hubs in this code
chris 0:0ab65a1aef12 697
chris 0:0ab65a1aef12 698 return device;
chris 0:0ab65a1aef12 699 }
chris 0:0ab65a1aef12 700
chris 0:0ab65a1aef12 701 // Walk descriptors and create endpoints for a given device
chris 0:0ab65a1aef12 702 // TODO configuration !=1, alternate settings etc.
chris 0:0ab65a1aef12 703 int SetConfigurationAndInterface(int device, int configuration, int interfaceNumber, DeviceDescriptor* desc)
chris 0:0ab65a1aef12 704 {
chris 0:0ab65a1aef12 705 u8 buffer[255];
chris 0:0ab65a1aef12 706 int err = GetDescriptor(device,DESCRIPTOR_TYPE_CONFIGURATION,0,buffer,sizeof(buffer));
chris 0:0ab65a1aef12 707 if (err < 0)
chris 0:0ab65a1aef12 708 return err;
chris 0:0ab65a1aef12 709
chris 0:0ab65a1aef12 710 err = SetConfiguration(device,configuration);
chris 0:0ab65a1aef12 711 if (err < 0)
chris 0:0ab65a1aef12 712 return err;
chris 0:0ab65a1aef12 713
chris 0:0ab65a1aef12 714 // Add the endpoints for this interface
chris 0:0ab65a1aef12 715 int len = buffer[2] | (buffer[3] << 8);
chris 0:0ab65a1aef12 716 u8* d = buffer;
chris 0:0ab65a1aef12 717 u8* end = d + len;
chris 0:0ab65a1aef12 718 InterfaceDescriptor* found = 0;
chris 0:0ab65a1aef12 719 while (d < end)
chris 0:0ab65a1aef12 720 {
chris 0:0ab65a1aef12 721 if (d[1] == DESCRIPTOR_TYPE_INTERFACE)
chris 0:0ab65a1aef12 722 {
chris 0:0ab65a1aef12 723 InterfaceDescriptor* id = (InterfaceDescriptor*)d;
chris 0:0ab65a1aef12 724 if (id->bInterfaceNumber == interfaceNumber)
chris 0:0ab65a1aef12 725 {
chris 0:0ab65a1aef12 726 found = id;
chris 0:0ab65a1aef12 727 d += d[0];
chris 0:0ab65a1aef12 728 while (d < end && d[1] != DESCRIPTOR_TYPE_INTERFACE)
chris 0:0ab65a1aef12 729 {
chris 0:0ab65a1aef12 730 switch (d[1])
chris 0:0ab65a1aef12 731 {
chris 0:0ab65a1aef12 732 case DESCRIPTOR_TYPE_ENDPOINT:
chris 0:0ab65a1aef12 733 AddEndpoint(device,(EndpointDescriptor*)d);
chris 0:0ab65a1aef12 734 break;
chris 0:0ab65a1aef12 735 default:
chris 0:0ab65a1aef12 736 LOG("Skipping descriptor %02X (%d bytes)\n",d[1],d[0]);
chris 0:0ab65a1aef12 737 }
chris 0:0ab65a1aef12 738 d += d[0];
chris 0:0ab65a1aef12 739 }
chris 0:0ab65a1aef12 740 }
chris 0:0ab65a1aef12 741 }
chris 0:0ab65a1aef12 742 d += d[0];
chris 0:0ab65a1aef12 743 }
chris 0:0ab65a1aef12 744
chris 0:0ab65a1aef12 745 if (!found)
chris 0:0ab65a1aef12 746 return ERR_INTERFACE_NOT_FOUND;
chris 0:0ab65a1aef12 747 OnLoadDevice(device,desc,found);
chris 0:0ab65a1aef12 748 return 0;
chris 0:0ab65a1aef12 749 }
chris 0:0ab65a1aef12 750
chris 0:0ab65a1aef12 751 void Init()
chris 0:0ab65a1aef12 752 {
chris 0:0ab65a1aef12 753 LOG("USB INIT (Controller is %d bytes)\n",sizeof(*this));
chris 0:0ab65a1aef12 754 memset(this,0,sizeof(HostController));
chris 0:0ab65a1aef12 755 EndpointZero.CurrentState = Endpoint::NotQueued;
chris 0:0ab65a1aef12 756 HWInit(&CommunicationArea);
chris 0:0ab65a1aef12 757 DelayMS(10);
chris 0:0ab65a1aef12 758 }
chris 0:0ab65a1aef12 759
chris 0:0ab65a1aef12 760 void ResetPort(int hub, int port)
chris 0:0ab65a1aef12 761 {
chris 0:0ab65a1aef12 762 LOG("ResetPort Hub:%d Port:%d\n",hub,port);
chris 0:0ab65a1aef12 763 _connectPending++; // Only reset/add 1 device at a time
chris 0:0ab65a1aef12 764 if (hub == 0)
chris 0:0ab65a1aef12 765 LPC_USB->HcRhPortStatus1 = PortResetStatus; // Reset Root Hub, port 1
chris 0:0ab65a1aef12 766 else
chris 0:0ab65a1aef12 767 SetPortReset(hub,port); // or reset other hub
chris 0:0ab65a1aef12 768 }
chris 0:0ab65a1aef12 769
chris 0:0ab65a1aef12 770 void Disconnect(int hub, int port)
chris 0:0ab65a1aef12 771 {
chris 0:0ab65a1aef12 772 LOG("Disconnect Hub:%d Port:%d\n",hub,port); // Mark a device for destruction
chris 0:0ab65a1aef12 773 for (int i = 0; i < MAX_DEVICES; i++)
chris 0:0ab65a1aef12 774 {
chris 0:0ab65a1aef12 775 Device* dev = Devices + i;
chris 0:0ab65a1aef12 776 if (dev->Port == port && dev->Hub == hub)
chris 0:0ab65a1aef12 777 {
chris 0:0ab65a1aef12 778 // Disconnect everything that is attached to this device if it is a hub
chris 0:0ab65a1aef12 779 for (int p = 0; p < dev->HubPortCount; p++)
chris 0:0ab65a1aef12 780 Disconnect(i+1,p+1);
chris 0:0ab65a1aef12 781
chris 0:0ab65a1aef12 782 // Now release endpoints
chris 0:0ab65a1aef12 783 for (int j = 1; j < MAX_ENDPOINTS_PER_DEVICE*2; j += 2)
chris 0:0ab65a1aef12 784 {
chris 0:0ab65a1aef12 785 u8 endpointIndex = dev->_endpointMap[j];
chris 0:0ab65a1aef12 786 if (endpointIndex != 0xFF)
chris 0:0ab65a1aef12 787 Release(Endpoints + endpointIndex);
chris 0:0ab65a1aef12 788 }
chris 0:0ab65a1aef12 789 dev->Port = 0; // Device is now free
chris 0:0ab65a1aef12 790 dev->Flags = 0;
chris 0:0ab65a1aef12 791 return;
chris 0:0ab65a1aef12 792 }
chris 0:0ab65a1aef12 793 }
chris 0:0ab65a1aef12 794 }
chris 0:0ab65a1aef12 795
chris 0:0ab65a1aef12 796 // called after reset
chris 0:0ab65a1aef12 797 void Connect(int hub, int port, bool lowspeed)
chris 0:0ab65a1aef12 798 {
chris 0:0ab65a1aef12 799 LOG("Connect Hub:%d Port:%d %s\n",hub,port,lowspeed ? "slow" : "full");
chris 0:0ab65a1aef12 800 AddDevice(hub,port,lowspeed);
chris 0:0ab65a1aef12 801 }
chris 0:0ab65a1aef12 802
chris 0:0ab65a1aef12 803 // Called from interrupt
chris 0:0ab65a1aef12 804 void HubStatusChange(int hub, int port, u32 status)
chris 0:0ab65a1aef12 805 {
chris 0:0ab65a1aef12 806 LOG("HubStatusChange Hub:%d Port:%d %08X\n",hub,port,status);
chris 0:0ab65a1aef12 807 if (status & ConnectStatusChange)
chris 0:0ab65a1aef12 808 {
chris 0:0ab65a1aef12 809 if (status & CurrentConnectStatus) // Connecting
chris 0:0ab65a1aef12 810 ResetPort(hub,port); // Reset to initiate connect (state machine?)
chris 0:0ab65a1aef12 811 else
chris 0:0ab65a1aef12 812 Disconnect(hub,port);
chris 0:0ab65a1aef12 813 }
chris 0:0ab65a1aef12 814
chris 0:0ab65a1aef12 815 if (status & PortResetStatusChange)
chris 0:0ab65a1aef12 816 {
chris 0:0ab65a1aef12 817 if (!(status & PortResetStatus))
chris 0:0ab65a1aef12 818 {
chris 0:0ab65a1aef12 819 _connectCountdown = 200; // Schedule a connection in 200ms
chris 0:0ab65a1aef12 820 if (status & LowspeedDevice)
chris 0:0ab65a1aef12 821 port |= 0x80;
chris 0:0ab65a1aef12 822 _connectHub = hub;
chris 0:0ab65a1aef12 823 _connectPort = port;
chris 0:0ab65a1aef12 824 }
chris 0:0ab65a1aef12 825 }
chris 0:0ab65a1aef12 826 }
chris 0:0ab65a1aef12 827
chris 0:0ab65a1aef12 828 #define HOST_CLK_EN (1<<0)
chris 0:0ab65a1aef12 829 #define PORTSEL_CLK_EN (1<<3)
chris 0:0ab65a1aef12 830 #define AHB_CLK_EN (1<<4)
chris 0:0ab65a1aef12 831 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
chris 0:0ab65a1aef12 832
chris 0:0ab65a1aef12 833 #define FRAMEINTERVAL (12000-1) // 1ms
chris 0:0ab65a1aef12 834 #define DEFAULT_FMINTERVAL ((((6 * (FRAMEINTERVAL - 210)) / 7) << 16) | FRAMEINTERVAL)
chris 0:0ab65a1aef12 835
chris 0:0ab65a1aef12 836 void DelayMS(int ms)
chris 0:0ab65a1aef12 837 {
chris 0:0ab65a1aef12 838 u16 f = ms + CommunicationArea.FrameNumber;
chris 0:0ab65a1aef12 839 while (f != CommunicationArea.FrameNumber)
chris 0:0ab65a1aef12 840 ;
chris 0:0ab65a1aef12 841 }
chris 0:0ab65a1aef12 842
chris 0:0ab65a1aef12 843 static void HWInit(HCCA* cca)
chris 0:0ab65a1aef12 844 {
chris 0:0ab65a1aef12 845 NVIC_DisableIRQ(USB_IRQn);
chris 0:0ab65a1aef12 846
chris 0:0ab65a1aef12 847 // turn on power for USB
chris 0:0ab65a1aef12 848 LPC_SC->PCONP |= (1UL<<31);
chris 0:0ab65a1aef12 849 // Enable USB host clock, port selection and AHB clock
chris 0:0ab65a1aef12 850 LPC_USB->USBClkCtrl |= CLOCK_MASK;
chris 0:0ab65a1aef12 851 // Wait for clocks to become available
chris 0:0ab65a1aef12 852 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
chris 0:0ab65a1aef12 853 ;
chris 0:0ab65a1aef12 854
chris 0:0ab65a1aef12 855 // We are a Host
chris 0:0ab65a1aef12 856 LPC_USB->OTGStCtrl |= 1;
chris 0:0ab65a1aef12 857 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN; // we don't need port selection clock until we do OTG
chris 0:0ab65a1aef12 858
chris 0:0ab65a1aef12 859 // configure USB pins
chris 0:0ab65a1aef12 860 LPC_PINCON->PINSEL1 &= ~((3<<26)|(3<<28));
chris 0:0ab65a1aef12 861 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // USB D+/D-
chris 0:0ab65a1aef12 862
chris 0:0ab65a1aef12 863 LPC_PINCON->PINSEL3 &= ~((3 << 6) | (3 << 22)); // USB_PPWR, USB_OVRCR
chris 0:0ab65a1aef12 864 LPC_PINCON->PINSEL3 |= ((2 << 6) | (2 << 22));
chris 0:0ab65a1aef12 865
chris 0:0ab65a1aef12 866 LPC_PINCON->PINSEL4 &= ~(3 << 18); // USB_CONNECT
chris 0:0ab65a1aef12 867 LPC_PINCON->PINSEL4 |= (1 << 18);
chris 0:0ab65a1aef12 868
chris 0:0ab65a1aef12 869 // Reset OHCI block
chris 0:0ab65a1aef12 870 LPC_USB->HcControl = 0;
chris 0:0ab65a1aef12 871 LPC_USB->HcControlHeadED = 0;
chris 0:0ab65a1aef12 872 LPC_USB->HcBulkHeadED = 0;
chris 0:0ab65a1aef12 873
chris 0:0ab65a1aef12 874 LPC_USB->HcCommandStatus = HostControllerReset;
chris 0:0ab65a1aef12 875 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL;
chris 0:0ab65a1aef12 876 LPC_USB->HcPeriodicStart = FRAMEINTERVAL*90/100;
chris 0:0ab65a1aef12 877
chris 0:0ab65a1aef12 878 LPC_USB->HcControl = (LPC_USB->HcControl & (~HostControllerFunctionalState)) | OperationalMask;
chris 0:0ab65a1aef12 879 LPC_USB->HcRhStatus = SetGlobalPower;
chris 0:0ab65a1aef12 880
chris 0:0ab65a1aef12 881 LPC_USB->HcHCCA = (u32)cca;
chris 0:0ab65a1aef12 882 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus;
chris 0:0ab65a1aef12 883 LPC_USB->HcInterruptEnable = MasterInterruptEnable | WritebackDoneHead | RootHubStatusChange | FrameNumberOverflow;
chris 0:0ab65a1aef12 884
chris 0:0ab65a1aef12 885 NVIC_SetPriority(USB_IRQn, 0);
chris 0:0ab65a1aef12 886 NVIC_EnableIRQ(USB_IRQn);
chris 0:0ab65a1aef12 887 while (cca->FrameNumber < 10)
chris 0:0ab65a1aef12 888 ; // 10ms delay before diving in
chris 0:0ab65a1aef12 889 }
chris 0:0ab65a1aef12 890 };
chris 0:0ab65a1aef12 891
chris 0:0ab65a1aef12 892 //====================================================================================
chris 0:0ab65a1aef12 893 //====================================================================================
chris 0:0ab65a1aef12 894 // Host controller instance and Interrupt handler
chris 0:0ab65a1aef12 895
chris 0:0ab65a1aef12 896 static HostController _controller __attribute__((at(USB_RAM_BASE)));
chris 0:0ab65a1aef12 897
chris 0:0ab65a1aef12 898 extern "C" void USB_IRQHandler(void) __irq;
chris 0:0ab65a1aef12 899 void USB_IRQHandler (void) __irq
chris 0:0ab65a1aef12 900 {
chris 0:0ab65a1aef12 901 u32 int_status = LPC_USB->HcInterruptStatus;
chris 0:0ab65a1aef12 902
chris 0:0ab65a1aef12 903 if (int_status & RootHubStatusChange) // Root hub status change
chris 0:0ab65a1aef12 904 _controller._rootHubStatusChange++; // Just flag the controller, will be processed in USBLoop
chris 0:0ab65a1aef12 905
chris 0:0ab65a1aef12 906 u32 head = 0;
chris 0:0ab65a1aef12 907 if (int_status & WritebackDoneHead)
chris 0:0ab65a1aef12 908 {
chris 0:0ab65a1aef12 909 head = _controller.CommunicationArea.DoneHead; // Writeback Done
chris 0:0ab65a1aef12 910 _controller.CommunicationArea.DoneHead = 0;
chris 0:0ab65a1aef12 911 }
chris 0:0ab65a1aef12 912 LPC_USB->HcInterruptStatus = int_status;
chris 0:0ab65a1aef12 913
chris 0:0ab65a1aef12 914 if (head)
chris 0:0ab65a1aef12 915 _controller.ProcessDoneQueue(head); // TODO - low bit can be set BUGBUG
chris 0:0ab65a1aef12 916 }
chris 0:0ab65a1aef12 917
chris 0:0ab65a1aef12 918 //====================================================================================
chris 0:0ab65a1aef12 919 //====================================================================================
chris 0:0ab65a1aef12 920 // API Methods
chris 0:0ab65a1aef12 921
chris 0:0ab65a1aef12 922 void USBInit()
chris 0:0ab65a1aef12 923 {
chris 0:0ab65a1aef12 924 return _controller.Init();
chris 0:0ab65a1aef12 925 }
chris 0:0ab65a1aef12 926
chris 0:0ab65a1aef12 927 void USBLoop()
chris 0:0ab65a1aef12 928 {
chris 0:0ab65a1aef12 929 return _controller.Loop();
chris 0:0ab65a1aef12 930 }
chris 0:0ab65a1aef12 931
chris 0:0ab65a1aef12 932 u8* USBGetBuffer(u32* len)
chris 0:0ab65a1aef12 933 {
chris 0:0ab65a1aef12 934 *len = USB_RAM_SIZE - sizeof(HostController);
chris 0:0ab65a1aef12 935 return _controller.SRAM;
chris 0:0ab65a1aef12 936 }
chris 0:0ab65a1aef12 937
chris 0:0ab65a1aef12 938 static Setup* GetSetup(int device)
chris 0:0ab65a1aef12 939 {
chris 0:0ab65a1aef12 940 if (device == 0)
chris 0:0ab65a1aef12 941 return &_controller._setupZero;
chris 0:0ab65a1aef12 942
chris 0:0ab65a1aef12 943 if (device < 1 || device > MAX_DEVICES)
chris 0:0ab65a1aef12 944 return 0;
chris 0:0ab65a1aef12 945 return &_controller.Devices[device-1].SetupBuffer;
chris 0:0ab65a1aef12 946 }
chris 0:0ab65a1aef12 947
chris 0:0ab65a1aef12 948 // Loop until IO on endpoint is complete
chris 0:0ab65a1aef12 949 static int WaitIODone(Endpoint* endpoint)
chris 0:0ab65a1aef12 950 {
chris 0:0ab65a1aef12 951 if (endpoint->CurrentState == Endpoint::NotQueued)
chris 0:0ab65a1aef12 952 return 0;
chris 0:0ab65a1aef12 953 while (endpoint->CurrentState != Endpoint::Idle)
chris 0:0ab65a1aef12 954 USBLoop(); // May generate callbacks, mount or unmount devices etc
chris 0:0ab65a1aef12 955 int status = endpoint->Status();
chris 0:0ab65a1aef12 956 if (status == 0)
chris 0:0ab65a1aef12 957 return endpoint->Length;
chris 0:0ab65a1aef12 958 return -status;
chris 0:0ab65a1aef12 959 }
chris 0:0ab65a1aef12 960
chris 0:0ab65a1aef12 961 int USBTransfer(int device, int ep, u8 flags, u8* data, int length, USBCallback callback, void* userData)
chris 0:0ab65a1aef12 962 {
chris 0:0ab65a1aef12 963 Endpoint* endpoint = _controller.GetEndpoint(device,ep);
chris 0:0ab65a1aef12 964 if (!endpoint)
chris 0:0ab65a1aef12 965 return ERR_ENDPOINT_NOT_FOUND;
chris 0:0ab65a1aef12 966
chris 0:0ab65a1aef12 967 WaitIODone(endpoint);
chris 0:0ab65a1aef12 968 endpoint->Flags = flags;
chris 0:0ab65a1aef12 969 endpoint->Data = data;
chris 0:0ab65a1aef12 970 endpoint->Length = length;
chris 0:0ab65a1aef12 971 endpoint->Callback = callback;
chris 0:0ab65a1aef12 972 endpoint->UserData = userData;
chris 0:0ab65a1aef12 973 if (ep == 0)
chris 0:0ab65a1aef12 974 _controller.Transfer(endpoint,TOKEN_SETUP,(u8*)GetSetup(device),8,Endpoint::SetupQueued);
chris 0:0ab65a1aef12 975 else
chris 0:0ab65a1aef12 976 _controller.Transfer(endpoint,flags & 0x80 ? TOKEN_IN : TOKEN_OUT,data,length,Endpoint::DataQueued);
chris 0:0ab65a1aef12 977 if (callback)
chris 0:0ab65a1aef12 978 return IO_PENDING;
chris 0:0ab65a1aef12 979 return WaitIODone(endpoint);
chris 0:0ab65a1aef12 980 }
chris 0:0ab65a1aef12 981
chris 0:0ab65a1aef12 982 int USBControlTransfer(int device, int request_type, int request, int value, int index, u8* data, int length, USBCallback callback, void * userData)
chris 0:0ab65a1aef12 983 {
chris 0:0ab65a1aef12 984 Setup* setup = GetSetup(device);
chris 0:0ab65a1aef12 985 if (!setup)
chris 0:0ab65a1aef12 986 return ERR_DEVICE_NOT_FOUND;
chris 0:0ab65a1aef12 987
chris 0:0ab65a1aef12 988 // Async control calls may overwrite setup buffer of previous call, so we need to wait before setting up next call
chris 0:0ab65a1aef12 989 WaitIODone(_controller.GetEndpoint(device,0));
chris 0:0ab65a1aef12 990
chris 0:0ab65a1aef12 991 setup->bm_request_type = request_type;
chris 0:0ab65a1aef12 992 setup->b_request = request;
chris 0:0ab65a1aef12 993 setup->w_value = value;
chris 0:0ab65a1aef12 994 setup->w_index = index;
chris 0:0ab65a1aef12 995 setup->w_length = length;
chris 0:0ab65a1aef12 996 return USBTransfer(device,0,request_type & DEVICE_TO_HOST,data,length,callback,userData);
chris 0:0ab65a1aef12 997 }
chris 0:0ab65a1aef12 998
chris 0:0ab65a1aef12 999 int USBInterruptTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
chris 0:0ab65a1aef12 1000 {
chris 0:0ab65a1aef12 1001 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_INTERRUPT,data,length,callback,userData);
chris 0:0ab65a1aef12 1002 }
chris 0:0ab65a1aef12 1003
chris 0:0ab65a1aef12 1004 int USBBulkTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
chris 0:0ab65a1aef12 1005 {
chris 0:0ab65a1aef12 1006 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_BULK,data,length,callback,userData);
chris 0:0ab65a1aef12 1007 }
chris 0:0ab65a1aef12 1008
chris 0:0ab65a1aef12 1009 int GetDescriptor(int device, int descType,int descIndex, u8* data, int length)
chris 0:0ab65a1aef12 1010 {
chris 0:0ab65a1aef12 1011 return USBControlTransfer(device,DEVICE_TO_HOST | RECIPIENT_DEVICE, GET_DESCRIPTOR,(descType << 8)|(descIndex), 0, data, length, 0);
chris 0:0ab65a1aef12 1012 }
chris 0:0ab65a1aef12 1013
chris 0:0ab65a1aef12 1014 int GetString(int device, int index, char* dst, int length)
chris 0:0ab65a1aef12 1015 {
chris 0:0ab65a1aef12 1016 u8 buffer[255];
chris 0:0ab65a1aef12 1017 int le = GetDescriptor(device,DESCRIPTOR_TYPE_STRING,index,buffer,sizeof(buffer));
chris 0:0ab65a1aef12 1018 if (le < 0)
chris 0:0ab65a1aef12 1019 return le;
chris 0:0ab65a1aef12 1020 if (length < 1)
chris 0:0ab65a1aef12 1021 return -1;
chris 0:0ab65a1aef12 1022 length <<= 1;
chris 0:0ab65a1aef12 1023 if (le > length)
chris 0:0ab65a1aef12 1024 le = length;
chris 0:0ab65a1aef12 1025 for (int j = 2; j < le; j += 2)
chris 0:0ab65a1aef12 1026 *dst++ = buffer[j];
chris 0:0ab65a1aef12 1027 *dst = 0;
chris 0:0ab65a1aef12 1028 return (le>>1)-1;
chris 0:0ab65a1aef12 1029 }
chris 0:0ab65a1aef12 1030
chris 0:0ab65a1aef12 1031 int SetAddress(int device, int new_addr)
chris 0:0ab65a1aef12 1032 {
chris 0:0ab65a1aef12 1033 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_ADDRESS, new_addr, 0, 0, 0, 0);
chris 0:0ab65a1aef12 1034 }
chris 0:0ab65a1aef12 1035
chris 0:0ab65a1aef12 1036 int SetConfiguration(int device, int configNum)
chris 0:0ab65a1aef12 1037 {
chris 0:0ab65a1aef12 1038 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_CONFIGURATION, configNum, 0, 0, 0, 0);
chris 0:0ab65a1aef12 1039 }
chris 0:0ab65a1aef12 1040
chris 0:0ab65a1aef12 1041 int SetInterface(int device, int ifNum, int altNum)
chris 0:0ab65a1aef12 1042 {
chris 0:0ab65a1aef12 1043 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_INTERFACE, SET_INTERFACE, altNum, ifNum, 0, 0, 0);
chris 0:0ab65a1aef12 1044 }
chris 0:0ab65a1aef12 1045
chris 0:0ab65a1aef12 1046 // HUB stuff
chris 0:0ab65a1aef12 1047 int SetPortFeature(int device, int feature, int index)
chris 0:0ab65a1aef12 1048 {
chris 0:0ab65a1aef12 1049 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,SET_FEATURE,feature,index,0,0);
chris 0:0ab65a1aef12 1050 }
chris 0:0ab65a1aef12 1051
chris 0:0ab65a1aef12 1052 int ClearPortFeature(int device, int feature, int index)
chris 0:0ab65a1aef12 1053 {
chris 0:0ab65a1aef12 1054 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,CLEAR_FEATURE,feature,index,0,0);
chris 0:0ab65a1aef12 1055 }
chris 0:0ab65a1aef12 1056
chris 0:0ab65a1aef12 1057 int SetPortPower(int device, int port)
chris 0:0ab65a1aef12 1058 {
chris 0:0ab65a1aef12 1059 int r = SetPortFeature(device,PORT_POWER,port);
chris 0:0ab65a1aef12 1060 _controller.DelayMS(20); // 80ms to turn on a hubs power... DESCRIPTOR? todo
chris 0:0ab65a1aef12 1061 return r;
chris 0:0ab65a1aef12 1062 }
chris 0:0ab65a1aef12 1063
chris 0:0ab65a1aef12 1064 int SetPortReset(int device, int port)
chris 0:0ab65a1aef12 1065 {
chris 0:0ab65a1aef12 1066 return SetPortFeature(device,PORT_RESET,port);
chris 0:0ab65a1aef12 1067 }
chris 0:0ab65a1aef12 1068
chris 0:0ab65a1aef12 1069 int GetPortStatus(int device, int port, u32* status)
chris 0:0ab65a1aef12 1070 {
chris 0:0ab65a1aef12 1071 return USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,GET_STATUS,0,port,(u8*)status,4);
chris 0:0ab65a1aef12 1072 }