Christian Burri / Mbed 2 deprecated autonomous Robot Android

This program is for an autonomous robot for the competition at the Hochschule Luzern. http://cruisingcrepe.wordpress.com/ We are one of the 32 teams. http://cruisingcrepe.wordpress.com/ The postition control is based on this Documentation: Control of Wheeled Mobile Robots: An Experimental Overview from Alessandro De Luca, Giuseppe Oriolo, Marilena Vendittelli. For more information see here: http://www.dis.uniroma1.it/~labrob/pub/papers/Ramsete01.pdf

Dependencies:   mbed

Fork of autonomous Robot Android by Christian Burri

MicroBridge/USBHost/USBHost.cpp@18:306d362d692b, 2013-05-03 (annotated)

Committer:
chrigelburri
Date:
Fri May 03 08:35:29 2013 +0000
Revision:
18:306d362d692b
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chrigelburri 18:306d362d692b 1
chrigelburri 18:306d362d692b 2 /*
chrigelburri 18:306d362d692b 3 Copyright (c) 2010 Peter Barrett
chrigelburri 18:306d362d692b 4
chrigelburri 18:306d362d692b 5 Permission is hereby granted, free of charge, to any person obtaining a copy
chrigelburri 18:306d362d692b 6 of this software and associated documentation files (the "Software"), to deal
chrigelburri 18:306d362d692b 7 in the Software without restriction, including without limitation the rights
chrigelburri 18:306d362d692b 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
chrigelburri 18:306d362d692b 9 copies of the Software, and to permit persons to whom the Software is
chrigelburri 18:306d362d692b 10 furnished to do so, subject to the following conditions:
chrigelburri 18:306d362d692b 11
chrigelburri 18:306d362d692b 12 The above copyright notice and this permission notice shall be included in
chrigelburri 18:306d362d692b 13 all copies or substantial portions of the Software.
chrigelburri 18:306d362d692b 14
chrigelburri 18:306d362d692b 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
chrigelburri 18:306d362d692b 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
chrigelburri 18:306d362d692b 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
chrigelburri 18:306d362d692b 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
chrigelburri 18:306d362d692b 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
chrigelburri 18:306d362d692b 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
chrigelburri 18:306d362d692b 21 THE SOFTWARE.
chrigelburri 18:306d362d692b 22 */
chrigelburri 18:306d362d692b 23
chrigelburri 18:306d362d692b 24
chrigelburri 18:306d362d692b 25
chrigelburri 18:306d362d692b 26 #include "mbed.h"
chrigelburri 18:306d362d692b 27 #include "USBHost.h"
chrigelburri 18:306d362d692b 28 #ifndef USBHOST_LOG
chrigelburri 18:306d362d692b 29
chrigelburri 18:306d362d692b 30 #define DESC_INDEX 0
chrigelburri 18:306d362d692b 31
chrigelburri 18:306d362d692b 32 // Config (default uses x bytes)
chrigelburri 18:306d362d692b 33 #define MAX_DEVICES 8 // Max number of devices
chrigelburri 18:306d362d692b 34 #define MAX_ENDPOINTS_TOTAL 16 // Max number of endpoints total
chrigelburri 18:306d362d692b 35 #define MAX_ENDPOINTS_PER_DEVICE 8 // Max number of endpoints for any one device
chrigelburri 18:306d362d692b 36
chrigelburri 18:306d362d692b 37 #define USBLOG 0
chrigelburri 18:306d362d692b 38 #if USBLOG
chrigelburri 18:306d362d692b 39 #define LOG(...) printf(__VA_ARGS__)
chrigelburri 18:306d362d692b 40 #else
chrigelburri 18:306d362d692b 41 #define LOG(...) do {} while(0)
chrigelburri 18:306d362d692b 42 #endif
chrigelburri 18:306d362d692b 43
chrigelburri 18:306d362d692b 44 // USB host structures
chrigelburri 18:306d362d692b 45
chrigelburri 18:306d362d692b 46 #define USB_RAM_SIZE 16*1024 // AHB SRAM block 1 TODO MACHINE DEPENDENT
chrigelburri 18:306d362d692b 47 #define USB_RAM_BASE 0x2007C000
chrigelburri 18:306d362d692b 48
chrigelburri 18:306d362d692b 49 #define TOKEN_SETUP 0
chrigelburri 18:306d362d692b 50 #define TOKEN_IN 1
chrigelburri 18:306d362d692b 51 #define TOKEN_OUT 2
chrigelburri 18:306d362d692b 52
chrigelburri 18:306d362d692b 53 // Status flags from hub
chrigelburri 18:306d362d692b 54 #define PORT_CONNECTION 0
chrigelburri 18:306d362d692b 55 #define PORT_ENABLE 1
chrigelburri 18:306d362d692b 56 #define PORT_SUSPEND 2
chrigelburri 18:306d362d692b 57 #define PORT_OVER_CURRENT 3
chrigelburri 18:306d362d692b 58 #define PORT_RESET 4
chrigelburri 18:306d362d692b 59 #define PORT_POWER 8
chrigelburri 18:306d362d692b 60 #define PORT_LOW_SPEED 9
chrigelburri 18:306d362d692b 61
chrigelburri 18:306d362d692b 62 #define C_PORT_CONNECTION 16
chrigelburri 18:306d362d692b 63 #define C_PORT_ENABLE 17
chrigelburri 18:306d362d692b 64 #define C_PORT_SUSPEND 18
chrigelburri 18:306d362d692b 65 #define C_PORT_OVER_CURRENT 19
chrigelburri 18:306d362d692b 66 #define C_PORT_RESET 20
chrigelburri 18:306d362d692b 67
chrigelburri 18:306d362d692b 68 typedef struct {
chrigelburri 18:306d362d692b 69 u8 bm_request_type;
chrigelburri 18:306d362d692b 70 u8 b_request;
chrigelburri 18:306d362d692b 71 u16 w_value;
chrigelburri 18:306d362d692b 72 u16 w_index;
chrigelburri 18:306d362d692b 73 u16 w_length;
chrigelburri 18:306d362d692b 74 } Setup;
chrigelburri 18:306d362d692b 75
chrigelburri 18:306d362d692b 76
chrigelburri 18:306d362d692b 77 // Hub stuff is kept private just to keep api simple
chrigelburri 18:306d362d692b 78 int SetPortFeature(int device, int feature, int index);
chrigelburri 18:306d362d692b 79 int ClearPortFeature(int device, int feature, int index);
chrigelburri 18:306d362d692b 80 int SetPortPower(int device, int port);
chrigelburri 18:306d362d692b 81 int SetPortReset(int device, int port);
chrigelburri 18:306d362d692b 82 int GetPortStatus(int device, int port, u32* status);
chrigelburri 18:306d362d692b 83
chrigelburri 18:306d362d692b 84 //===================================================================
chrigelburri 18:306d362d692b 85 //===================================================================
chrigelburri 18:306d362d692b 86 // Hardware defines
chrigelburri 18:306d362d692b 87
chrigelburri 18:306d362d692b 88 // HcControl
chrigelburri 18:306d362d692b 89 #define PeriodicListEnable 0x00000004
chrigelburri 18:306d362d692b 90 #define IsochronousEnable 0x00000008
chrigelburri 18:306d362d692b 91 #define ControlListEnable 0x00000010
chrigelburri 18:306d362d692b 92 #define BulkListEnable 0x00000020
chrigelburri 18:306d362d692b 93 #define OperationalMask 0x00000080
chrigelburri 18:306d362d692b 94 #define HostControllerFunctionalState 0x000000C0
chrigelburri 18:306d362d692b 95
chrigelburri 18:306d362d692b 96 // HcCommandStatus
chrigelburri 18:306d362d692b 97 #define HostControllerReset 0x00000001
chrigelburri 18:306d362d692b 98 #define ControlListFilled 0x00000002
chrigelburri 18:306d362d692b 99 #define BulkListFilled 0x00000004
chrigelburri 18:306d362d692b 100
chrigelburri 18:306d362d692b 101 // HcInterruptStatus Register
chrigelburri 18:306d362d692b 102 #define WritebackDoneHead 0x00000002
chrigelburri 18:306d362d692b 103 #define StartofFrame 0x00000004
chrigelburri 18:306d362d692b 104 #define ResumeDetected 0x00000008
chrigelburri 18:306d362d692b 105 #define UnrecoverableError 0x00000010
chrigelburri 18:306d362d692b 106 #define FrameNumberOverflow 0x00000020
chrigelburri 18:306d362d692b 107 #define RootHubStatusChange 0x00000040
chrigelburri 18:306d362d692b 108 #define OwnershipChange 0x00000080
chrigelburri 18:306d362d692b 109 #define MasterInterruptEnable 0x80000000
chrigelburri 18:306d362d692b 110
chrigelburri 18:306d362d692b 111 // HcRhStatus
chrigelburri 18:306d362d692b 112 #define SetGlobalPower 0x00010000
chrigelburri 18:306d362d692b 113 #define DeviceRemoteWakeupEnable 0x00008000
chrigelburri 18:306d362d692b 114
chrigelburri 18:306d362d692b 115 // HcRhPortStatus (hub 0, port 1)
chrigelburri 18:306d362d692b 116 #define CurrentConnectStatus 0x00000001
chrigelburri 18:306d362d692b 117 #define PortEnableStatus 0x00000002
chrigelburri 18:306d362d692b 118 #define PortSuspendStatus 0x00000004
chrigelburri 18:306d362d692b 119 #define PortOverCurrentIndicator 0x00000008
chrigelburri 18:306d362d692b 120 #define PortResetStatus 0x00000010
chrigelburri 18:306d362d692b 121
chrigelburri 18:306d362d692b 122 #define PortPowerStatus 0x00000100
chrigelburri 18:306d362d692b 123 #define LowspeedDevice 0x00000200
chrigelburri 18:306d362d692b 124 #define HighspeedDevice 0x00000400
chrigelburri 18:306d362d692b 125
chrigelburri 18:306d362d692b 126 #define ConnectStatusChange (CurrentConnectStatus << 16)
chrigelburri 18:306d362d692b 127 #define PortResetStatusChange (PortResetStatus << 16)
chrigelburri 18:306d362d692b 128
chrigelburri 18:306d362d692b 129
chrigelburri 18:306d362d692b 130 #define TD_ROUNDING (u32)0x00040000
chrigelburri 18:306d362d692b 131 #define TD_SETUP (u32)0x00000000
chrigelburri 18:306d362d692b 132 #define TD_IN (u32)0x00100000
chrigelburri 18:306d362d692b 133 #define TD_OUT (u32)0x00080000
chrigelburri 18:306d362d692b 134 #define TD_DELAY_INT(x) (u32)((x) << 21)
chrigelburri 18:306d362d692b 135 #define TD_TOGGLE_0 (u32)0x02000000
chrigelburri 18:306d362d692b 136 #define TD_TOGGLE_1 (u32)0x03000000
chrigelburri 18:306d362d692b 137 #define TD_CC (u32)0xF0000000
chrigelburri 18:306d362d692b 138
chrigelburri 18:306d362d692b 139 // HostController EndPoint Descriptor
chrigelburri 18:306d362d692b 140 typedef struct {
chrigelburri 18:306d362d692b 141 volatile u32 Control;
chrigelburri 18:306d362d692b 142 volatile u32 TailTd;
chrigelburri 18:306d362d692b 143 volatile u32 HeadTd;
chrigelburri 18:306d362d692b 144 volatile u32 Next;
chrigelburri 18:306d362d692b 145 } HCED;
chrigelburri 18:306d362d692b 146
chrigelburri 18:306d362d692b 147 // HostController Transfer Descriptor
chrigelburri 18:306d362d692b 148 typedef struct {
chrigelburri 18:306d362d692b 149 volatile u32 Control;
chrigelburri 18:306d362d692b 150 volatile u32 CurrBufPtr;
chrigelburri 18:306d362d692b 151 volatile u32 Next;
chrigelburri 18:306d362d692b 152 volatile u32 BufEnd;
chrigelburri 18:306d362d692b 153 } HCTD;
chrigelburri 18:306d362d692b 154
chrigelburri 18:306d362d692b 155 // Host Controller Communication Area
chrigelburri 18:306d362d692b 156 typedef struct {
chrigelburri 18:306d362d692b 157 volatile u32 InterruptTable[32];
chrigelburri 18:306d362d692b 158 volatile u16 FrameNumber;
chrigelburri 18:306d362d692b 159 volatile u16 FrameNumberPad;
chrigelburri 18:306d362d692b 160 volatile u32 DoneHead;
chrigelburri 18:306d362d692b 161 volatile u8 Reserved[120];
chrigelburri 18:306d362d692b 162 } HCCA;
chrigelburri 18:306d362d692b 163
chrigelburri 18:306d362d692b 164 //====================================================================================
chrigelburri 18:306d362d692b 165 //====================================================================================
chrigelburri 18:306d362d692b 166
chrigelburri 18:306d362d692b 167 class HostController;
chrigelburri 18:306d362d692b 168 class Endpoint;
chrigelburri 18:306d362d692b 169 class Device;
chrigelburri 18:306d362d692b 170
chrigelburri 18:306d362d692b 171 // must be 3*16 bytes long
chrigelburri 18:306d362d692b 172 class Endpoint
chrigelburri 18:306d362d692b 173 {
chrigelburri 18:306d362d692b 174 public:
chrigelburri 18:306d362d692b 175 HCED EndpointDescriptor; // Pointer to EndpointDescriptor == Pointer to Endpoint
chrigelburri 18:306d362d692b 176 HCTD TDHead;
chrigelburri 18:306d362d692b 177
chrigelburri 18:306d362d692b 178 enum State
chrigelburri 18:306d362d692b 179 {
chrigelburri 18:306d362d692b 180 Free,
chrigelburri 18:306d362d692b 181 NotQueued,
chrigelburri 18:306d362d692b 182 Idle,
chrigelburri 18:306d362d692b 183 SetupQueued,
chrigelburri 18:306d362d692b 184 DataQueued,
chrigelburri 18:306d362d692b 185 StatusQueued,
chrigelburri 18:306d362d692b 186 CallbackPending
chrigelburri 18:306d362d692b 187 };
chrigelburri 18:306d362d692b 188
chrigelburri 18:306d362d692b 189 volatile u8 CurrentState;
chrigelburri 18:306d362d692b 190 u8 Flags; // 0x80 In, 0x03 mask endpoint type
chrigelburri 18:306d362d692b 191
chrigelburri 18:306d362d692b 192 u16 Length;
chrigelburri 18:306d362d692b 193 u8* Data;
chrigelburri 18:306d362d692b 194 USBCallback Callback; // Must be a multiple of 16 bytes long
chrigelburri 18:306d362d692b 195 void* UserData;
chrigelburri 18:306d362d692b 196
chrigelburri 18:306d362d692b 197 int Address()
chrigelburri 18:306d362d692b 198 {
chrigelburri 18:306d362d692b 199 int ep = (EndpointDescriptor.Control >> 7) & 0xF;
chrigelburri 18:306d362d692b 200 if (ep)
chrigelburri 18:306d362d692b 201 ep |= Flags & 0x80;
chrigelburri 18:306d362d692b 202 return ep;
chrigelburri 18:306d362d692b 203 }
chrigelburri 18:306d362d692b 204
chrigelburri 18:306d362d692b 205 int Device()
chrigelburri 18:306d362d692b 206 {
chrigelburri 18:306d362d692b 207 return EndpointDescriptor.Control & 0x7F;
chrigelburri 18:306d362d692b 208 }
chrigelburri 18:306d362d692b 209
chrigelburri 18:306d362d692b 210 int Status()
chrigelburri 18:306d362d692b 211 {
chrigelburri 18:306d362d692b 212 return (TDHead.Control >> 28) & 0xF;
chrigelburri 18:306d362d692b 213 }
chrigelburri 18:306d362d692b 214
chrigelburri 18:306d362d692b 215 u32 Enqueue(u32 head)
chrigelburri 18:306d362d692b 216 {
chrigelburri 18:306d362d692b 217 if (CurrentState == NotQueued)
chrigelburri 18:306d362d692b 218 {
chrigelburri 18:306d362d692b 219 EndpointDescriptor.Next = head;
chrigelburri 18:306d362d692b 220 head = (u32)&EndpointDescriptor;
chrigelburri 18:306d362d692b 221 CurrentState = Idle;
chrigelburri 18:306d362d692b 222 }
chrigelburri 18:306d362d692b 223 return head;
chrigelburri 18:306d362d692b 224 }
chrigelburri 18:306d362d692b 225 };
chrigelburri 18:306d362d692b 226
chrigelburri 18:306d362d692b 227 class Device
chrigelburri 18:306d362d692b 228 {
chrigelburri 18:306d362d692b 229 public:
chrigelburri 18:306d362d692b 230 u8 _endpointMap[MAX_ENDPOINTS_PER_DEVICE*2];
chrigelburri 18:306d362d692b 231 u8 Hub;
chrigelburri 18:306d362d692b 232 u8 Port;
chrigelburri 18:306d362d692b 233 u8 Addr;
chrigelburri 18:306d362d692b 234 u8 Pad;
chrigelburri 18:306d362d692b 235
chrigelburri 18:306d362d692b 236 // Only if this device is a hub
chrigelburri 18:306d362d692b 237 u8 HubPortCount; // nonzero if this is a hub
chrigelburri 18:306d362d692b 238 u8 HubInterruptData;
chrigelburri 18:306d362d692b 239 u8 HubMap;
chrigelburri 18:306d362d692b 240 u8 HubMask;
chrigelburri 18:306d362d692b 241
chrigelburri 18:306d362d692b 242 int Flags; // 1 = Disconnected
chrigelburri 18:306d362d692b 243
chrigelburri 18:306d362d692b 244 Setup SetupBuffer;
chrigelburri 18:306d362d692b 245
chrigelburri 18:306d362d692b 246 // Allocate endpoint zero
chrigelburri 18:306d362d692b 247 int Init(DeviceDescriptor* d, int hub, int port, int addr, int lowSpeed)
chrigelburri 18:306d362d692b 248 {
chrigelburri 18:306d362d692b 249 Hub = hub;
chrigelburri 18:306d362d692b 250 Port = port;
chrigelburri 18:306d362d692b 251 Addr = addr;
chrigelburri 18:306d362d692b 252 Flags = lowSpeed;
chrigelburri 18:306d362d692b 253 memset(_endpointMap,0xFF,sizeof(_endpointMap));
chrigelburri 18:306d362d692b 254 return 0;
chrigelburri 18:306d362d692b 255 }
chrigelburri 18:306d362d692b 256
chrigelburri 18:306d362d692b 257 int SetEndpointIndex(int ep, int endpointIndex)
chrigelburri 18:306d362d692b 258 {
chrigelburri 18:306d362d692b 259 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
chrigelburri 18:306d362d692b 260 {
chrigelburri 18:306d362d692b 261 if (_endpointMap[i] == 0xFF) // Add endpoint to map
chrigelburri 18:306d362d692b 262 {
chrigelburri 18:306d362d692b 263 _endpointMap[i] = ep;
chrigelburri 18:306d362d692b 264 _endpointMap[i+1] = endpointIndex;
chrigelburri 18:306d362d692b 265 return 0;
chrigelburri 18:306d362d692b 266 }
chrigelburri 18:306d362d692b 267 }
chrigelburri 18:306d362d692b 268 return ERR_ENDPOINT_NONE_LEFT;
chrigelburri 18:306d362d692b 269 }
chrigelburri 18:306d362d692b 270
chrigelburri 18:306d362d692b 271 int GetEndpointIndex(int ep)
chrigelburri 18:306d362d692b 272 {
chrigelburri 18:306d362d692b 273 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
chrigelburri 18:306d362d692b 274 {
chrigelburri 18:306d362d692b 275 if (_endpointMap[i] == ep)
chrigelburri 18:306d362d692b 276 return _endpointMap[i+1];
chrigelburri 18:306d362d692b 277 if (_endpointMap[i] == 0xFF)
chrigelburri 18:306d362d692b 278 break;
chrigelburri 18:306d362d692b 279 }
chrigelburri 18:306d362d692b 280 return -1;
chrigelburri 18:306d362d692b 281 }
chrigelburri 18:306d362d692b 282 };
chrigelburri 18:306d362d692b 283
chrigelburri 18:306d362d692b 284 class HostController
chrigelburri 18:306d362d692b 285 {
chrigelburri 18:306d362d692b 286 public:
chrigelburri 18:306d362d692b 287 HCCA CommunicationArea;
chrigelburri 18:306d362d692b 288 Endpoint Endpoints[MAX_ENDPOINTS_TOTAL]; // Multiple of 16
chrigelburri 18:306d362d692b 289
chrigelburri 18:306d362d692b 290 Endpoint EndpointZero; // For device enumeration
chrigelburri 18:306d362d692b 291 HCTD _commonTail;
chrigelburri 18:306d362d692b 292 Setup _setupZero;
chrigelburri 18:306d362d692b 293
chrigelburri 18:306d362d692b 294 Device Devices[MAX_DEVICES];
chrigelburri 18:306d362d692b 295 u32 _frameNumber; // 32 bit ms counter
chrigelburri 18:306d362d692b 296
chrigelburri 18:306d362d692b 297 u8 _callbacksPending; // Endpoints with callbacks are pending, set from ISR via ProcessDoneQueue
chrigelburri 18:306d362d692b 298 u8 _rootHubStatusChange; // Root hub status has changed, set from ISR
chrigelburri 18:306d362d692b 299 u8 _unused0;
chrigelburri 18:306d362d692b 300 u8 _unused1;
chrigelburri 18:306d362d692b 301
chrigelburri 18:306d362d692b 302 u8 _connectPending; // Reset has initiated a connect
chrigelburri 18:306d362d692b 303 u8 _connectCountdown; // Number of ms left after reset before we can connect
chrigelburri 18:306d362d692b 304 u8 _connectHub; // Will connect on this hub
chrigelburri 18:306d362d692b 305 u8 _connectPort; // ... and this port
chrigelburri 18:306d362d692b 306
chrigelburri 18:306d362d692b 307 u8 SRAM[0]; // Start of free SRAM
chrigelburri 18:306d362d692b 308
chrigelburri 18:306d362d692b 309 void Loop()
chrigelburri 18:306d362d692b 310 {
chrigelburri 18:306d362d692b 311 u16 elapsed = CommunicationArea.FrameNumber - (u16)_frameNumber; // extend to 32 bits
chrigelburri 18:306d362d692b 312 _frameNumber += elapsed;
chrigelburri 18:306d362d692b 313
chrigelburri 18:306d362d692b 314 // Do callbacks, if any
chrigelburri 18:306d362d692b 315 while (_callbacksPending)
chrigelburri 18:306d362d692b 316 {
chrigelburri 18:306d362d692b 317 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
chrigelburri 18:306d362d692b 318 {
chrigelburri 18:306d362d692b 319 Endpoint* endpoint = Endpoints + i;
chrigelburri 18:306d362d692b 320 if (endpoint->CurrentState == Endpoint::CallbackPending)
chrigelburri 18:306d362d692b 321 {
chrigelburri 18:306d362d692b 322 LOG("Sorting Callbacks %i\r\n\r",endpoint->CurrentState);
chrigelburri 18:306d362d692b 323 _callbacksPending--;
chrigelburri 18:306d362d692b 324 endpoint->CurrentState = Endpoint::Idle;
chrigelburri 18:306d362d692b 325 LOG("SatusChanged %i\r\n\r",endpoint->CurrentState);
chrigelburri 18:306d362d692b 326 LOG("CallBack DataSize:%d",endpoint->Length);
chrigelburri 18:306d362d692b 327 endpoint->Callback(endpoint->Device(),endpoint->Address(),endpoint->Status(),endpoint->Data,endpoint->Length,endpoint->UserData);
chrigelburri 18:306d362d692b 328 }
chrigelburri 18:306d362d692b 329 }
chrigelburri 18:306d362d692b 330 }
chrigelburri 18:306d362d692b 331
chrigelburri 18:306d362d692b 332 // Deal with changes on the root hub
chrigelburri 18:306d362d692b 333 if (_rootHubStatusChange)
chrigelburri 18:306d362d692b 334 {
chrigelburri 18:306d362d692b 335 u32 status = LPC_USB->HcRhPortStatus1;
chrigelburri 18:306d362d692b 336 _rootHubStatusChange = 0;
chrigelburri 18:306d362d692b 337 if (status >> 16)
chrigelburri 18:306d362d692b 338 {
chrigelburri 18:306d362d692b 339 HubStatusChange(0,1,status);
chrigelburri 18:306d362d692b 340 LPC_USB->HcRhPortStatus1 = status & 0xFFFF0000; // clear status changes
chrigelburri 18:306d362d692b 341 }
chrigelburri 18:306d362d692b 342 }
chrigelburri 18:306d362d692b 343
chrigelburri 18:306d362d692b 344 // Connect after reset timeout
chrigelburri 18:306d362d692b 345 if (_connectCountdown)
chrigelburri 18:306d362d692b 346 {
chrigelburri 18:306d362d692b 347 if (elapsed >= _connectCountdown)
chrigelburri 18:306d362d692b 348 {
chrigelburri 18:306d362d692b 349 _connectCountdown = 0;
chrigelburri 18:306d362d692b 350 Connect(_connectHub,_connectPort & 0x7F,_connectPort & 0x80);
chrigelburri 18:306d362d692b 351 } else
chrigelburri 18:306d362d692b 352 _connectCountdown -= elapsed;
chrigelburri 18:306d362d692b 353 }
chrigelburri 18:306d362d692b 354 }
chrigelburri 18:306d362d692b 355
chrigelburri 18:306d362d692b 356 // HubInterrupt - bitmap in dev->HubInterruptData
chrigelburri 18:306d362d692b 357 void HubInterrupt(int device)
chrigelburri 18:306d362d692b 358 {
chrigelburri 18:306d362d692b 359 Device* dev = &Devices[device-1];
chrigelburri 18:306d362d692b 360 for (int i = 0; i < dev->HubPortCount; i++)
chrigelburri 18:306d362d692b 361 {
chrigelburri 18:306d362d692b 362 int port = i+1;
chrigelburri 18:306d362d692b 363 if (dev->HubInterruptData & (1 << port))
chrigelburri 18:306d362d692b 364 {
chrigelburri 18:306d362d692b 365 u32 status = 0;
chrigelburri 18:306d362d692b 366 GetPortStatus(device,port,&status);
chrigelburri 18:306d362d692b 367 if (status >> 16)
chrigelburri 18:306d362d692b 368 {
chrigelburri 18:306d362d692b 369 if (_connectPending && (status & ConnectStatusChange))
chrigelburri 18:306d362d692b 370 continue; // Don't connect again until previous device has been added and addressed
chrigelburri 18:306d362d692b 371
chrigelburri 18:306d362d692b 372 HubStatusChange(device,port,status);
chrigelburri 18:306d362d692b 373 if (status & ConnectStatusChange)
chrigelburri 18:306d362d692b 374 ClearPortFeature(device,C_PORT_CONNECTION,port);
chrigelburri 18:306d362d692b 375 if (status & PortResetStatusChange)
chrigelburri 18:306d362d692b 376 ClearPortFeature(device,C_PORT_RESET,port);
chrigelburri 18:306d362d692b 377 }
chrigelburri 18:306d362d692b 378 }
chrigelburri 18:306d362d692b 379 }
chrigelburri 18:306d362d692b 380 }
chrigelburri 18:306d362d692b 381
chrigelburri 18:306d362d692b 382 static void HubInterruptCallback(int device, int endpoint, int status, u8* data, int len, void* userData)
chrigelburri 18:306d362d692b 383 {
chrigelburri 18:306d362d692b 384 HostController* controller = (HostController*)userData;
chrigelburri 18:306d362d692b 385 if (status == 0)
chrigelburri 18:306d362d692b 386 controller->HubInterrupt(device);
chrigelburri 18:306d362d692b 387 USBInterruptTransfer(device,endpoint,data,1,HubInterruptCallback,userData);
chrigelburri 18:306d362d692b 388 }
chrigelburri 18:306d362d692b 389
chrigelburri 18:306d362d692b 390 int InitHub(int device)
chrigelburri 18:306d362d692b 391 {
chrigelburri 18:306d362d692b 392 u8 buf[16];
chrigelburri 18:306d362d692b 393 int r= USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_DEVICE,GET_DESCRIPTOR,(DESCRIPTOR_TYPE_HUB << 8),0,buf,sizeof(buf));
chrigelburri 18:306d362d692b 394 if (r < 0)
chrigelburri 18:306d362d692b 395 return ERR_HUB_INIT_FAILED;
chrigelburri 18:306d362d692b 396
chrigelburri 18:306d362d692b 397 // turn on power on the hubs ports
chrigelburri 18:306d362d692b 398 Device* dev = &Devices[device-1];
chrigelburri 18:306d362d692b 399 int ports = buf[2];
chrigelburri 18:306d362d692b 400 dev->HubPortCount = ports;
chrigelburri 18:306d362d692b 401 for (int i = 0; i < ports; i++)
chrigelburri 18:306d362d692b 402 SetPortPower(device,i+1);
chrigelburri 18:306d362d692b 403
chrigelburri 18:306d362d692b 404 // Enable hub change interrupts
chrigelburri 18:306d362d692b 405 return USBInterruptTransfer(device,0x81,&dev->HubInterruptData,1,HubInterruptCallback,this);
chrigelburri 18:306d362d692b 406 }
chrigelburri 18:306d362d692b 407
chrigelburri 18:306d362d692b 408 int AddEndpoint(int device, int ep, int attributes, int maxPacketSize, int interval)
chrigelburri 18:306d362d692b 409 {
chrigelburri 18:306d362d692b 410 LOG("AddEndpoint D:%02X A:%02X T:%02X P:%04X I:%02X\r\r\n",device,ep,attributes,maxPacketSize,interval);
chrigelburri 18:306d362d692b 411 Device* dev = &Devices[device-1];
chrigelburri 18:306d362d692b 412 Endpoint* endpoint = AllocateEndpoint(device,ep,attributes,maxPacketSize);
chrigelburri 18:306d362d692b 413 if (!endpoint)
chrigelburri 18:306d362d692b 414 return ERR_ENDPOINT_NONE_LEFT;
chrigelburri 18:306d362d692b 415 dev->SetEndpointIndex(ep,endpoint - Endpoints);
chrigelburri 18:306d362d692b 416 endpoint->EndpointDescriptor.Control |= dev->Flags; // Map in slow speed
chrigelburri 18:306d362d692b 417 return 0; // TODO ed->bInterval
chrigelburri 18:306d362d692b 418 }
chrigelburri 18:306d362d692b 419
chrigelburri 18:306d362d692b 420 int AddEndpoint(int device, EndpointDescriptor* ed)
chrigelburri 18:306d362d692b 421 {
chrigelburri 18:306d362d692b 422 return AddEndpoint(device,ed->bEndpointAddress,ed->bmAttributes,ed->wMaxPacketSize,ed->bInterval);
chrigelburri 18:306d362d692b 423 }
chrigelburri 18:306d362d692b 424
chrigelburri 18:306d362d692b 425 // allocate a endpoint
chrigelburri 18:306d362d692b 426 Endpoint* AllocateEndpoint(int device, int endpointAddress, int type, int maxPacketSize)
chrigelburri 18:306d362d692b 427 {
chrigelburri 18:306d362d692b 428 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
chrigelburri 18:306d362d692b 429 {
chrigelburri 18:306d362d692b 430 Endpoint* ep = &Endpoints[i];
chrigelburri 18:306d362d692b 431 if (ep->CurrentState == 0)
chrigelburri 18:306d362d692b 432 {
chrigelburri 18:306d362d692b 433 //LOG("Allocated endpoint %d to %02X:%02X\r\r\n",i,device,endpointAddress);
chrigelburri 18:306d362d692b 434 ep->Flags = (endpointAddress & 0x80) | (type & 3);
chrigelburri 18:306d362d692b 435 ep->CurrentState = Endpoint::NotQueued;
chrigelburri 18:306d362d692b 436 ep->EndpointDescriptor.Control = (maxPacketSize << 16) | ((endpointAddress & 0x7F) << 7) | device;
chrigelburri 18:306d362d692b 437 return ep;
chrigelburri 18:306d362d692b 438 }
chrigelburri 18:306d362d692b 439 }
chrigelburri 18:306d362d692b 440 return 0;
chrigelburri 18:306d362d692b 441 }
chrigelburri 18:306d362d692b 442
chrigelburri 18:306d362d692b 443 Endpoint* GetEndpoint(int device, int ep)
chrigelburri 18:306d362d692b 444 {
chrigelburri 18:306d362d692b 445 if (device == 0)
chrigelburri 18:306d362d692b 446 {
chrigelburri 18:306d362d692b 447 //printf("WARNING: USING DEVICE 0\r\n");
chrigelburri 18:306d362d692b 448 return &EndpointZero;
chrigelburri 18:306d362d692b 449 }
chrigelburri 18:306d362d692b 450 if (device > MAX_DEVICES)
chrigelburri 18:306d362d692b 451 return 0;
chrigelburri 18:306d362d692b 452 int i = Devices[device-1].GetEndpointIndex(ep);
chrigelburri 18:306d362d692b 453 if (i == -1)
chrigelburri 18:306d362d692b 454 return 0;
chrigelburri 18:306d362d692b 455 return Endpoints + i;
chrigelburri 18:306d362d692b 456 }
chrigelburri 18:306d362d692b 457
chrigelburri 18:306d362d692b 458 int Transfer(Endpoint* endpoint, int token, u8* data, int len, int state)
chrigelburri 18:306d362d692b 459 {
chrigelburri 18:306d362d692b 460 //LOG("Transfer %02X T:%d Len:%d S:%d\r\r\n",endpoint->Address(),token,len,state);
chrigelburri 18:306d362d692b 461
chrigelburri 18:306d362d692b 462 int toggle = 0;
chrigelburri 18:306d362d692b 463 if (endpoint->Address() == 0)
chrigelburri 18:306d362d692b 464 toggle = (token == TOKEN_SETUP) ? TD_TOGGLE_0 : TD_TOGGLE_1;
chrigelburri 18:306d362d692b 465
chrigelburri 18:306d362d692b 466 if (token != TOKEN_SETUP)
chrigelburri 18:306d362d692b 467 token = (token == TOKEN_IN ? TD_IN : TD_OUT);
chrigelburri 18:306d362d692b 468
chrigelburri 18:306d362d692b 469 HCTD* head = &endpoint->TDHead;
chrigelburri 18:306d362d692b 470 HCTD* tail = &_commonTail;
chrigelburri 18:306d362d692b 471
chrigelburri 18:306d362d692b 472 head->Control = TD_ROUNDING | token | TD_DELAY_INT(0) | toggle | TD_CC;
chrigelburri 18:306d362d692b 473 head->CurrBufPtr = (u32)data;
chrigelburri 18:306d362d692b 474 head->BufEnd = (u32)(data + len - 1);
chrigelburri 18:306d362d692b 475 head->Next = (u32)tail;
chrigelburri 18:306d362d692b 476
chrigelburri 18:306d362d692b 477 HCED* ed = &endpoint->EndpointDescriptor;
chrigelburri 18:306d362d692b 478 ed->HeadTd = (u32)head | (ed->HeadTd & 0x00000002); // carry toggle
chrigelburri 18:306d362d692b 479 ed->TailTd = (u32)tail;
chrigelburri 18:306d362d692b 480
chrigelburri 18:306d362d692b 481 //HCTD* td = head;
chrigelburri 18:306d362d692b 482 //LOG("%04X TD %08X %08X %08X Next:%08X\r\r\n",CommunicationArea.FrameNumber,td->Control,td->CurrBufPtr,td->BufEnd,td->Next);
chrigelburri 18:306d362d692b 483 //LOG("%04X ED %08X %08X %08X\r\r\n",CommunicationArea.FrameNumber,ed->Control,ed->HeadTd,ed->TailTd);
chrigelburri 18:306d362d692b 484
chrigelburri 18:306d362d692b 485 switch (endpoint->Flags & 3)
chrigelburri 18:306d362d692b 486 {
chrigelburri 18:306d362d692b 487 case ENDPOINT_CONTROL:
chrigelburri 18:306d362d692b 488 LPC_USB->HcControlHeadED = endpoint->Enqueue(LPC_USB->HcControlHeadED); // May change state NotQueued->Idle
chrigelburri 18:306d362d692b 489 endpoint->CurrentState = state; // Get in before an int
chrigelburri 18:306d362d692b 490 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | ControlListFilled;
chrigelburri 18:306d362d692b 491 LPC_USB->HcControl = LPC_USB->HcControl | ControlListEnable;
chrigelburri 18:306d362d692b 492 break;
chrigelburri 18:306d362d692b 493
chrigelburri 18:306d362d692b 494 case ENDPOINT_BULK:
chrigelburri 18:306d362d692b 495 LPC_USB->HcBulkHeadED = endpoint->Enqueue(LPC_USB->HcBulkHeadED);
chrigelburri 18:306d362d692b 496 endpoint->CurrentState = state;
chrigelburri 18:306d362d692b 497 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | BulkListFilled;
chrigelburri 18:306d362d692b 498 LPC_USB->HcControl = LPC_USB->HcControl | BulkListEnable;
chrigelburri 18:306d362d692b 499 break;
chrigelburri 18:306d362d692b 500
chrigelburri 18:306d362d692b 501 case ENDPOINT_INTERRUPT:
chrigelburri 18:306d362d692b 502 CommunicationArea.InterruptTable[0] = endpoint->Enqueue(CommunicationArea.InterruptTable[0]);
chrigelburri 18:306d362d692b 503 endpoint->CurrentState = state;
chrigelburri 18:306d362d692b 504 LPC_USB->HcControl |= PeriodicListEnable;
chrigelburri 18:306d362d692b 505 break;
chrigelburri 18:306d362d692b 506 }
chrigelburri 18:306d362d692b 507 return 0;
chrigelburri 18:306d362d692b 508 }
chrigelburri 18:306d362d692b 509
chrigelburri 18:306d362d692b 510 // Remove an endpoint from an active queue
chrigelburri 18:306d362d692b 511 bool Remove(HCED* ed, volatile HCED** queue)
chrigelburri 18:306d362d692b 512 {
chrigelburri 18:306d362d692b 513 if (*queue == 0)
chrigelburri 18:306d362d692b 514 return false;
chrigelburri 18:306d362d692b 515 if (*queue == (volatile HCED*)ed)
chrigelburri 18:306d362d692b 516 {
chrigelburri 18:306d362d692b 517 *queue = (volatile HCED*)ed->Next; // At head of queue
chrigelburri 18:306d362d692b 518 return true;
chrigelburri 18:306d362d692b 519 }
chrigelburri 18:306d362d692b 520
chrigelburri 18:306d362d692b 521 volatile HCED* head = *queue;
chrigelburri 18:306d362d692b 522 while (head)
chrigelburri 18:306d362d692b 523 {
chrigelburri 18:306d362d692b 524 if (head->Next == (u32)ed)
chrigelburri 18:306d362d692b 525 {
chrigelburri 18:306d362d692b 526 head->Next = ed->Next;
chrigelburri 18:306d362d692b 527 return true;
chrigelburri 18:306d362d692b 528 }
chrigelburri 18:306d362d692b 529 head = (volatile HCED*)head->Next;
chrigelburri 18:306d362d692b 530 }
chrigelburri 18:306d362d692b 531 return false;
chrigelburri 18:306d362d692b 532 }
chrigelburri 18:306d362d692b 533
chrigelburri 18:306d362d692b 534 void Release(Endpoint* endpoint)
chrigelburri 18:306d362d692b 535 {
chrigelburri 18:306d362d692b 536 if (endpoint->CurrentState == Endpoint::NotQueued)
chrigelburri 18:306d362d692b 537 {
chrigelburri 18:306d362d692b 538 // Never event used it, nothing to do
chrigelburri 18:306d362d692b 539 }
chrigelburri 18:306d362d692b 540 else
chrigelburri 18:306d362d692b 541 {
chrigelburri 18:306d362d692b 542 HCED* ed = (HCED*)endpoint;
chrigelburri 18:306d362d692b 543 ed->Control |= 0x4000; // SKIP
chrigelburri 18:306d362d692b 544 switch (endpoint->Flags & 0x03)
chrigelburri 18:306d362d692b 545 {
chrigelburri 18:306d362d692b 546 case ENDPOINT_CONTROL:
chrigelburri 18:306d362d692b 547 Remove(ed,(volatile HCED**)&LPC_USB->HcControlHeadED);
chrigelburri 18:306d362d692b 548 break;
chrigelburri 18:306d362d692b 549 case ENDPOINT_BULK:
chrigelburri 18:306d362d692b 550 Remove(ed,(volatile HCED**)&LPC_USB->HcBulkHeadED);
chrigelburri 18:306d362d692b 551 break;
chrigelburri 18:306d362d692b 552 case ENDPOINT_INTERRUPT:
chrigelburri 18:306d362d692b 553 for (int i = 0; i < 32; i++)
chrigelburri 18:306d362d692b 554 Remove(ed,(volatile HCED**)&CommunicationArea.InterruptTable[i]);
chrigelburri 18:306d362d692b 555 break;
chrigelburri 18:306d362d692b 556 }
chrigelburri 18:306d362d692b 557
chrigelburri 18:306d362d692b 558 u16 fn = CommunicationArea.FrameNumber;
chrigelburri 18:306d362d692b 559 while (fn == CommunicationArea.FrameNumber)
chrigelburri 18:306d362d692b 560 ; // Wait for next frame
chrigelburri 18:306d362d692b 561
chrigelburri 18:306d362d692b 562 }
chrigelburri 18:306d362d692b 563
chrigelburri 18:306d362d692b 564 // In theory, the endpoint is now dead.
chrigelburri 18:306d362d692b 565 // TODO: Will Callbacks ever be pending? BUGBUG
chrigelburri 18:306d362d692b 566 memset(endpoint,0,sizeof(Endpoint));
chrigelburri 18:306d362d692b 567 }
chrigelburri 18:306d362d692b 568
chrigelburri 18:306d362d692b 569 // Pop the last TD from the list
chrigelburri 18:306d362d692b 570 HCTD* Reverse(HCTD* current)
chrigelburri 18:306d362d692b 571 {
chrigelburri 18:306d362d692b 572 HCTD *result = NULL,*temp;
chrigelburri 18:306d362d692b 573 while (current)
chrigelburri 18:306d362d692b 574 {
chrigelburri 18:306d362d692b 575 temp = (HCTD*)current->Next;
chrigelburri 18:306d362d692b 576 current->Next = (u32)result;
chrigelburri 18:306d362d692b 577 result = current;
chrigelburri 18:306d362d692b 578 current = temp;
chrigelburri 18:306d362d692b 579 }
chrigelburri 18:306d362d692b 580 return result;
chrigelburri 18:306d362d692b 581 }
chrigelburri 18:306d362d692b 582
chrigelburri 18:306d362d692b 583 // Called from interrupt...
chrigelburri 18:306d362d692b 584 // Control endpoints use a state machine to progress through the transfers
chrigelburri 18:306d362d692b 585 void ProcessDoneQueue(u32 tdList)
chrigelburri 18:306d362d692b 586 {
chrigelburri 18:306d362d692b 587 HCTD* list = Reverse((HCTD*)tdList);
chrigelburri 18:306d362d692b 588 while (list)
chrigelburri 18:306d362d692b 589 {
chrigelburri 18:306d362d692b 590 Endpoint* endpoint = (Endpoint*)(list-1);
chrigelburri 18:306d362d692b 591 list = (HCTD*)list->Next;
chrigelburri 18:306d362d692b 592 int ep = endpoint->Address();
chrigelburri 18:306d362d692b 593 bool in = endpoint->Flags & 0x80;
chrigelburri 18:306d362d692b 594 int status = (endpoint->TDHead.Control >> 28) & 0xF;
chrigelburri 18:306d362d692b 595
chrigelburri 18:306d362d692b 596 //LOG("ProcessDoneQueue %02X %08X\r\r\n",ep,endpoint->TDHead.Control);
chrigelburri 18:306d362d692b 597
chrigelburri 18:306d362d692b 598 if (status != 0)
chrigelburri 18:306d362d692b 599 {
chrigelburri 18:306d362d692b 600 LOG("ProcessDoneQueue status %02X %d\r\r\n",ep,status);
chrigelburri 18:306d362d692b 601 endpoint->CurrentState = Endpoint::Idle;
chrigelburri 18:306d362d692b 602 } else {
chrigelburri 18:306d362d692b 603 switch (endpoint->CurrentState)
chrigelburri 18:306d362d692b 604 {
chrigelburri 18:306d362d692b 605 case Endpoint::SetupQueued:
chrigelburri 18:306d362d692b 606 if (endpoint->Length == 0)
chrigelburri 18:306d362d692b 607 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Skip Data Phase
chrigelburri 18:306d362d692b 608 else
chrigelburri 18:306d362d692b 609 Transfer(endpoint,in ? TOKEN_IN : TOKEN_OUT,endpoint->Data,endpoint->Length, Endpoint::DataQueued); // Setup is done, now Data
chrigelburri 18:306d362d692b 610 break;
chrigelburri 18:306d362d692b 611
chrigelburri 18:306d362d692b 612 case Endpoint::DataQueued:
chrigelburri 18:306d362d692b 613 if (endpoint->TDHead.CurrBufPtr)
chrigelburri 18:306d362d692b 614 endpoint->Length = endpoint->TDHead.CurrBufPtr - (u32)endpoint->Data;
chrigelburri 18:306d362d692b 615
chrigelburri 18:306d362d692b 616 if (ep == 0)
chrigelburri 18:306d362d692b 617 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Data is done, now Status, Control only
chrigelburri 18:306d362d692b 618 else
chrigelburri 18:306d362d692b 619 endpoint->CurrentState = Endpoint::Idle;
chrigelburri 18:306d362d692b 620 break;
chrigelburri 18:306d362d692b 621
chrigelburri 18:306d362d692b 622 case Endpoint::StatusQueued: // Transaction is done
chrigelburri 18:306d362d692b 623 endpoint->CurrentState = Endpoint::Idle;
chrigelburri 18:306d362d692b 624 break;
chrigelburri 18:306d362d692b 625 }
chrigelburri 18:306d362d692b 626 }
chrigelburri 18:306d362d692b 627
chrigelburri 18:306d362d692b 628 // Complete, flag if we need a callback
chrigelburri 18:306d362d692b 629 if (endpoint->Callback && endpoint->CurrentState == Endpoint::Idle)
chrigelburri 18:306d362d692b 630 {
chrigelburri 18:306d362d692b 631 endpoint->CurrentState = Endpoint::CallbackPending;
chrigelburri 18:306d362d692b 632 _callbacksPending++;
chrigelburri 18:306d362d692b 633 }
chrigelburri 18:306d362d692b 634 }
chrigelburri 18:306d362d692b 635 }
chrigelburri 18:306d362d692b 636
chrigelburri 18:306d362d692b 637 // Hack to reset devices that don't want to connect
chrigelburri 18:306d362d692b 638 int AddDevice(int hub, int port, bool isLowSpeed)
chrigelburri 18:306d362d692b 639 {
chrigelburri 18:306d362d692b 640 int device = AddDeviceCore(hub,port,isLowSpeed);
chrigelburri 18:306d362d692b 641 if (device < 0)
chrigelburri 18:306d362d692b 642 {
chrigelburri 18:306d362d692b 643 LOG("========RETRY ADD DEVICE========\r\r\n"); // This will go for ever.. TODO power cycle root?
chrigelburri 18:306d362d692b 644 Disconnect(hub,port); // Could not read descriptor at assigned address, reset this port and try again
chrigelburri 18:306d362d692b 645 ResetPort(hub,port); // Cheap bluetooth dongles often need this on a hotplug
chrigelburri 18:306d362d692b 646 return -1;
chrigelburri 18:306d362d692b 647 }
chrigelburri 18:306d362d692b 648 return device;
chrigelburri 18:306d362d692b 649 }
chrigelburri 18:306d362d692b 650
chrigelburri 18:306d362d692b 651 int AddDeviceCore(int hub, int port, bool isLowSpeed)
chrigelburri 18:306d362d692b 652 {
chrigelburri 18:306d362d692b 653 int lowSpeed = isLowSpeed ? 0x2000 : 0;
chrigelburri 18:306d362d692b 654 DeviceDescriptor desc;
chrigelburri 18:306d362d692b 655 EndpointZero.EndpointDescriptor.Control = (8 << 16) | lowSpeed; // MaxPacketSize == 8
chrigelburri 18:306d362d692b 656 int r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,8);
chrigelburri 18:306d362d692b 657 if (r < 0)
chrigelburri 18:306d362d692b 658 {
chrigelburri 18:306d362d692b 659 LOG("FAILED TO LOAD DESCRIPTOR FOR DEVICE 0\r\r\n");
chrigelburri 18:306d362d692b 660 return r;
chrigelburri 18:306d362d692b 661 }
chrigelburri 18:306d362d692b 662
chrigelburri 18:306d362d692b 663 EndpointZero.EndpointDescriptor.Control = (desc.bMaxPacketSize << 16) | lowSpeed; // Actual MaxPacketSize
chrigelburri 18:306d362d692b 664 r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
chrigelburri 18:306d362d692b 665 if (r < 0)
chrigelburri 18:306d362d692b 666 return r;
chrigelburri 18:306d362d692b 667
chrigelburri 18:306d362d692b 668 LOG("\r\nClass %02X found %04X:%04X\r\r\n",desc.bDeviceClass,desc.idVendor,desc.idProduct);
chrigelburri 18:306d362d692b 669
chrigelburri 18:306d362d692b 670 // Now assign the device an address, move off EndpointZero
chrigelburri 18:306d362d692b 671 int device = 0;
chrigelburri 18:306d362d692b 672 for (int i = 0; i < MAX_DEVICES; i++)
chrigelburri 18:306d362d692b 673 {
chrigelburri 18:306d362d692b 674 if (Devices[i].Port == 0)
chrigelburri 18:306d362d692b 675 {
chrigelburri 18:306d362d692b 676 device = i+1;
chrigelburri 18:306d362d692b 677 break;
chrigelburri 18:306d362d692b 678 }
chrigelburri 18:306d362d692b 679 }
chrigelburri 18:306d362d692b 680 if (!device)
chrigelburri 18:306d362d692b 681 return ERR_DEVICE_NONE_LEFT;
chrigelburri 18:306d362d692b 682
chrigelburri 18:306d362d692b 683 r = SetAddress(0,device);
chrigelburri 18:306d362d692b 684 if (r)
chrigelburri 18:306d362d692b 685 return r;
chrigelburri 18:306d362d692b 686 DelayMS(2);
chrigelburri 18:306d362d692b 687
chrigelburri 18:306d362d692b 688 // Now at a nonzero address, create control endpoint
chrigelburri 18:306d362d692b 689 Device* dev = &Devices[device-1];
chrigelburri 18:306d362d692b 690 dev->Init(&desc,hub,port,device,lowSpeed);
chrigelburri 18:306d362d692b 691 AddEndpoint(device,0,ENDPOINT_CONTROL,desc.bMaxPacketSize,0);
chrigelburri 18:306d362d692b 692 _connectPending = 0;
chrigelburri 18:306d362d692b 693
chrigelburri 18:306d362d692b 694 // Verify this all works
chrigelburri 18:306d362d692b 695 r = GetDescriptor(device,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
chrigelburri 18:306d362d692b 696 if (r < 0)
chrigelburri 18:306d362d692b 697 return r;
chrigelburri 18:306d362d692b 698
chrigelburri 18:306d362d692b 699 // Set to interface 0 by default
chrigelburri 18:306d362d692b 700 // Calls LoadDevice if interface is found
chrigelburri 18:306d362d692b 701 //r = SetConfigurationAndInterface(device,1,0,&desc);
chrigelburri 18:306d362d692b 702 r = SetConfigurationAndInterface(device,1,1,&desc);
chrigelburri 18:306d362d692b 703 //r = SetConfigurationAndInterface(device,1,0,&desc);
chrigelburri 18:306d362d692b 704
chrigelburri 18:306d362d692b 705 if (desc.bDeviceClass == CLASS_HUB)
chrigelburri 18:306d362d692b 706 InitHub(device); // Handle hubs in this code
chrigelburri 18:306d362d692b 707
chrigelburri 18:306d362d692b 708 return device;
chrigelburri 18:306d362d692b 709 }
chrigelburri 18:306d362d692b 710
chrigelburri 18:306d362d692b 711 // Walk descriptors and create endpoints for a given device
chrigelburri 18:306d362d692b 712 // TODO configuration !=1, alternate settings etc.
chrigelburri 18:306d362d692b 713 int SetConfigurationAndInterface(int device, int configuration, int interfaceNumber, DeviceDescriptor* desc)
chrigelburri 18:306d362d692b 714 {
chrigelburri 18:306d362d692b 715 u8 buffer[255];
chrigelburri 18:306d362d692b 716 int err = GetDescriptor(device,DESCRIPTOR_TYPE_CONFIGURATION,DESC_INDEX,buffer,sizeof(buffer));
chrigelburri 18:306d362d692b 717 if (err < 0)
chrigelburri 18:306d362d692b 718 return err;
chrigelburri 18:306d362d692b 719
chrigelburri 18:306d362d692b 720 err = SetConfiguration(device,configuration);
chrigelburri 18:306d362d692b 721 if (err < 0)
chrigelburri 18:306d362d692b 722 return err;
chrigelburri 18:306d362d692b 723
chrigelburri 18:306d362d692b 724 // Add the endpoints for this interface
chrigelburri 18:306d362d692b 725 int len = buffer[2] | (buffer[3] << 8);
chrigelburri 18:306d362d692b 726 u8* d = buffer;
chrigelburri 18:306d362d692b 727 u8* end = d + len;
chrigelburri 18:306d362d692b 728 InterfaceDescriptor* found = 0;
chrigelburri 18:306d362d692b 729 while (d < end)
chrigelburri 18:306d362d692b 730 {
chrigelburri 18:306d362d692b 731 if (d[1] == DESCRIPTOR_TYPE_INTERFACE)
chrigelburri 18:306d362d692b 732 {
chrigelburri 18:306d362d692b 733 InterfaceDescriptor* id = (InterfaceDescriptor*)d;
chrigelburri 18:306d362d692b 734 if (id->bInterfaceNumber == interfaceNumber)
chrigelburri 18:306d362d692b 735 {
chrigelburri 18:306d362d692b 736 found = id;
chrigelburri 18:306d362d692b 737 d += d[0];
chrigelburri 18:306d362d692b 738 while (d < end && d[1] != DESCRIPTOR_TYPE_INTERFACE)
chrigelburri 18:306d362d692b 739 {
chrigelburri 18:306d362d692b 740 switch (d[1])
chrigelburri 18:306d362d692b 741 {
chrigelburri 18:306d362d692b 742 case DESCRIPTOR_TYPE_ENDPOINT:
chrigelburri 18:306d362d692b 743 AddEndpoint(device,(EndpointDescriptor*)d);
chrigelburri 18:306d362d692b 744 break;
chrigelburri 18:306d362d692b 745 default:
chrigelburri 18:306d362d692b 746 LOG("Skipping descriptor %02X (%d bytes)\r\r\n",d[1],d[0]);
chrigelburri 18:306d362d692b 747 }
chrigelburri 18:306d362d692b 748 d += d[0];
chrigelburri 18:306d362d692b 749 }
chrigelburri 18:306d362d692b 750 }
chrigelburri 18:306d362d692b 751 }
chrigelburri 18:306d362d692b 752 d += d[0];
chrigelburri 18:306d362d692b 753 }
chrigelburri 18:306d362d692b 754
chrigelburri 18:306d362d692b 755 if (!found)
chrigelburri 18:306d362d692b 756 return ERR_INTERFACE_NOT_FOUND;
chrigelburri 18:306d362d692b 757 OnLoadDevice(device,desc,found);
chrigelburri 18:306d362d692b 758 return 0;
chrigelburri 18:306d362d692b 759 }
chrigelburri 18:306d362d692b 760
chrigelburri 18:306d362d692b 761 void Init()
chrigelburri 18:306d362d692b 762 {
chrigelburri 18:306d362d692b 763 LOG("USB INIT (Controller is %d bytes)\r\r\n",sizeof(*this));
chrigelburri 18:306d362d692b 764 memset(this,0,sizeof(HostController));
chrigelburri 18:306d362d692b 765 EndpointZero.CurrentState = Endpoint::NotQueued;
chrigelburri 18:306d362d692b 766 HWInit(&CommunicationArea);
chrigelburri 18:306d362d692b 767 DelayMS(10);
chrigelburri 18:306d362d692b 768 }
chrigelburri 18:306d362d692b 769
chrigelburri 18:306d362d692b 770 void ResetPort(int hub, int port)
chrigelburri 18:306d362d692b 771 {
chrigelburri 18:306d362d692b 772 LOG("ResetPort Hub:%d Port:%d\r\r\n",hub,port);
chrigelburri 18:306d362d692b 773 _connectPending++; // Only reset/add 1 device at a time
chrigelburri 18:306d362d692b 774 if (hub == 0)
chrigelburri 18:306d362d692b 775 LPC_USB->HcRhPortStatus1 = PortResetStatus; // Reset Root Hub, port 1
chrigelburri 18:306d362d692b 776 else
chrigelburri 18:306d362d692b 777 SetPortReset(hub,port); // or reset other hub
chrigelburri 18:306d362d692b 778 }
chrigelburri 18:306d362d692b 779
chrigelburri 18:306d362d692b 780 void Disconnect(int hub, int port)
chrigelburri 18:306d362d692b 781 {
chrigelburri 18:306d362d692b 782 LOG("Disconnect Hub:%d Port:%d\r\r\n",hub,port); // Mark a device for destruction
chrigelburri 18:306d362d692b 783 for (int i = 0; i < MAX_DEVICES; i++)
chrigelburri 18:306d362d692b 784 {
chrigelburri 18:306d362d692b 785 Device* dev = Devices + i;
chrigelburri 18:306d362d692b 786 if (dev->Port == port && dev->Hub == hub)
chrigelburri 18:306d362d692b 787 {
chrigelburri 18:306d362d692b 788 // Disconnect everything that is attached to this device if it is a hub
chrigelburri 18:306d362d692b 789 for (int p = 0; p < dev->HubPortCount; p++)
chrigelburri 18:306d362d692b 790 Disconnect(i+1,p+1);
chrigelburri 18:306d362d692b 791
chrigelburri 18:306d362d692b 792 // Now release endpoints
chrigelburri 18:306d362d692b 793 for (int j = 1; j < MAX_ENDPOINTS_PER_DEVICE*2; j += 2)
chrigelburri 18:306d362d692b 794 {
chrigelburri 18:306d362d692b 795 u8 endpointIndex = dev->_endpointMap[j];
chrigelburri 18:306d362d692b 796 if (endpointIndex != 0xFF)
chrigelburri 18:306d362d692b 797 Release(Endpoints + endpointIndex);
chrigelburri 18:306d362d692b 798 }
chrigelburri 18:306d362d692b 799 dev->Port = 0; // Device is now free
chrigelburri 18:306d362d692b 800 dev->Flags = 0;
chrigelburri 18:306d362d692b 801 return;
chrigelburri 18:306d362d692b 802 }
chrigelburri 18:306d362d692b 803 }
chrigelburri 18:306d362d692b 804 }
chrigelburri 18:306d362d692b 805
chrigelburri 18:306d362d692b 806 // called after reset
chrigelburri 18:306d362d692b 807 void Connect(int hub, int port, bool lowspeed)
chrigelburri 18:306d362d692b 808 {
chrigelburri 18:306d362d692b 809 LOG("Connect Hub:%d Port:%d %s\r\r\n",hub,port,lowspeed ? "slow" : "full");
chrigelburri 18:306d362d692b 810 AddDevice(hub,port,lowspeed);
chrigelburri 18:306d362d692b 811 }
chrigelburri 18:306d362d692b 812
chrigelburri 18:306d362d692b 813 // Called from interrupt
chrigelburri 18:306d362d692b 814 void HubStatusChange(int hub, int port, u32 status)
chrigelburri 18:306d362d692b 815 {
chrigelburri 18:306d362d692b 816 LOG("HubStatusChange Hub:%d Port:%d %08X\r\r\n",hub,port,status);
chrigelburri 18:306d362d692b 817 if (status & ConnectStatusChange)
chrigelburri 18:306d362d692b 818 {
chrigelburri 18:306d362d692b 819 if (status & CurrentConnectStatus) // Connecting
chrigelburri 18:306d362d692b 820 ResetPort(hub,port); // Reset to initiate connect (state machine?)
chrigelburri 18:306d362d692b 821 else
chrigelburri 18:306d362d692b 822 Disconnect(hub,port);
chrigelburri 18:306d362d692b 823 }
chrigelburri 18:306d362d692b 824
chrigelburri 18:306d362d692b 825 if (status & PortResetStatusChange)
chrigelburri 18:306d362d692b 826 {
chrigelburri 18:306d362d692b 827 if (!(status & PortResetStatus))
chrigelburri 18:306d362d692b 828 {
chrigelburri 18:306d362d692b 829 _connectCountdown = 200; // Schedule a connection in 200ms
chrigelburri 18:306d362d692b 830 if (status & LowspeedDevice)
chrigelburri 18:306d362d692b 831 port |= 0x80;
chrigelburri 18:306d362d692b 832 _connectHub = hub;
chrigelburri 18:306d362d692b 833 _connectPort = port;
chrigelburri 18:306d362d692b 834 }
chrigelburri 18:306d362d692b 835 }
chrigelburri 18:306d362d692b 836 }
chrigelburri 18:306d362d692b 837
chrigelburri 18:306d362d692b 838 #define HOST_CLK_EN (1<<0)
chrigelburri 18:306d362d692b 839 #define PORTSEL_CLK_EN (1<<3)
chrigelburri 18:306d362d692b 840 #define AHB_CLK_EN (1<<4)
chrigelburri 18:306d362d692b 841 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
chrigelburri 18:306d362d692b 842
chrigelburri 18:306d362d692b 843 #define FRAMEINTERVAL (12000-1) // 1ms
chrigelburri 18:306d362d692b 844 #define DEFAULT_FMINTERVAL ((((6 * (FRAMEINTERVAL - 210)) / 7) << 16) | FRAMEINTERVAL)
chrigelburri 18:306d362d692b 845
chrigelburri 18:306d362d692b 846 void DelayMS(int ms)
chrigelburri 18:306d362d692b 847 {
chrigelburri 18:306d362d692b 848 u16 f = ms + CommunicationArea.FrameNumber;
chrigelburri 18:306d362d692b 849 while (f != CommunicationArea.FrameNumber)
chrigelburri 18:306d362d692b 850 ;
chrigelburri 18:306d362d692b 851 }
chrigelburri 18:306d362d692b 852
chrigelburri 18:306d362d692b 853 static void HWInit(HCCA* cca)
chrigelburri 18:306d362d692b 854 {
chrigelburri 18:306d362d692b 855 NVIC_DisableIRQ(USB_IRQn);
chrigelburri 18:306d362d692b 856
chrigelburri 18:306d362d692b 857 // turn on power for USB
chrigelburri 18:306d362d692b 858 LPC_SC->PCONP |= (1UL<<31);
chrigelburri 18:306d362d692b 859 // Enable USB host clock, port selection and AHB clock
chrigelburri 18:306d362d692b 860 LPC_USB->USBClkCtrl |= CLOCK_MASK;
chrigelburri 18:306d362d692b 861 // Wait for clocks to become available
chrigelburri 18:306d362d692b 862 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
chrigelburri 18:306d362d692b 863 ;
chrigelburri 18:306d362d692b 864
chrigelburri 18:306d362d692b 865 // We are a Host
chrigelburri 18:306d362d692b 866 LPC_USB->OTGStCtrl |= 1;
chrigelburri 18:306d362d692b 867 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN; // we don't need port selection clock until we do OTG
chrigelburri 18:306d362d692b 868
chrigelburri 18:306d362d692b 869 // configure USB pins
chrigelburri 18:306d362d692b 870 LPC_PINCON->PINSEL1 &= ~((3<<26)|(3<<28));
chrigelburri 18:306d362d692b 871 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // USB D+/D-
chrigelburri 18:306d362d692b 872
chrigelburri 18:306d362d692b 873 LPC_PINCON->PINSEL3 &= ~((3 << 6) | (3 << 22)); // USB_PPWR, USB_OVRCR
chrigelburri 18:306d362d692b 874 LPC_PINCON->PINSEL3 |= ((2 << 6) | (2 << 22));
chrigelburri 18:306d362d692b 875
chrigelburri 18:306d362d692b 876 LPC_PINCON->PINSEL4 &= ~(3 << 18); // USB_CONNECT
chrigelburri 18:306d362d692b 877 LPC_PINCON->PINSEL4 |= (1 << 18);
chrigelburri 18:306d362d692b 878
chrigelburri 18:306d362d692b 879 // Reset OHCI block
chrigelburri 18:306d362d692b 880 LPC_USB->HcControl = 0;
chrigelburri 18:306d362d692b 881 LPC_USB->HcControlHeadED = 0;
chrigelburri 18:306d362d692b 882 LPC_USB->HcBulkHeadED = 0;
chrigelburri 18:306d362d692b 883
chrigelburri 18:306d362d692b 884 LPC_USB->HcCommandStatus = HostControllerReset;
chrigelburri 18:306d362d692b 885 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL;
chrigelburri 18:306d362d692b 886 LPC_USB->HcPeriodicStart = FRAMEINTERVAL*90/100;
chrigelburri 18:306d362d692b 887
chrigelburri 18:306d362d692b 888 LPC_USB->HcControl = (LPC_USB->HcControl & (~HostControllerFunctionalState)) | OperationalMask;
chrigelburri 18:306d362d692b 889 LPC_USB->HcRhStatus = SetGlobalPower;
chrigelburri 18:306d362d692b 890
chrigelburri 18:306d362d692b 891 LPC_USB->HcHCCA = (u32)cca;
chrigelburri 18:306d362d692b 892 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus;
chrigelburri 18:306d362d692b 893 LPC_USB->HcInterruptEnable = MasterInterruptEnable | WritebackDoneHead | RootHubStatusChange | FrameNumberOverflow;
chrigelburri 18:306d362d692b 894
chrigelburri 18:306d362d692b 895 NVIC_SetPriority(USB_IRQn, 0);
chrigelburri 18:306d362d692b 896 NVIC_EnableIRQ(USB_IRQn);
chrigelburri 18:306d362d692b 897 while (cca->FrameNumber < 10)
chrigelburri 18:306d362d692b 898 ; // 10ms delay before diving in
chrigelburri 18:306d362d692b 899 }
chrigelburri 18:306d362d692b 900 };
chrigelburri 18:306d362d692b 901
chrigelburri 18:306d362d692b 902 //====================================================================================
chrigelburri 18:306d362d692b 903 //====================================================================================
chrigelburri 18:306d362d692b 904 // Host controller instance and Interrupt handler
chrigelburri 18:306d362d692b 905
chrigelburri 18:306d362d692b 906 static HostController _controller __attribute__((at(USB_RAM_BASE)));
chrigelburri 18:306d362d692b 907
chrigelburri 18:306d362d692b 908 extern "C" void USB_IRQHandler(void) __irq;
chrigelburri 18:306d362d692b 909 void USB_IRQHandler (void) __irq
chrigelburri 18:306d362d692b 910 {
chrigelburri 18:306d362d692b 911 u32 int_status = LPC_USB->HcInterruptStatus;
chrigelburri 18:306d362d692b 912
chrigelburri 18:306d362d692b 913 if(int_status & UnrecoverableError) //Error
chrigelburri 18:306d362d692b 914 {
chrigelburri 18:306d362d692b 915 LOG("USB_IRQHandler UnrecoverableError Please reset\r\r\n");
chrigelburri 18:306d362d692b 916 }
chrigelburri 18:306d362d692b 917
chrigelburri 18:306d362d692b 918
chrigelburri 18:306d362d692b 919 if (int_status & RootHubStatusChange) // Root hub status change
chrigelburri 18:306d362d692b 920 _controller._rootHubStatusChange++; // Just flag the controller, will be processed in USBLoop
chrigelburri 18:306d362d692b 921
chrigelburri 18:306d362d692b 922 u32 head = 0;
chrigelburri 18:306d362d692b 923 if (int_status & WritebackDoneHead)
chrigelburri 18:306d362d692b 924 {
chrigelburri 18:306d362d692b 925 head = _controller.CommunicationArea.DoneHead; // Writeback Done
chrigelburri 18:306d362d692b 926 _controller.CommunicationArea.DoneHead = 0;
chrigelburri 18:306d362d692b 927 }
chrigelburri 18:306d362d692b 928 LPC_USB->HcInterruptStatus = int_status;
chrigelburri 18:306d362d692b 929
chrigelburri 18:306d362d692b 930 if (head)
chrigelburri 18:306d362d692b 931 _controller.ProcessDoneQueue(head); // TODO - low bit can be set BUGBUG
chrigelburri 18:306d362d692b 932 }
chrigelburri 18:306d362d692b 933
chrigelburri 18:306d362d692b 934 //====================================================================================
chrigelburri 18:306d362d692b 935 //====================================================================================
chrigelburri 18:306d362d692b 936 // API Methods
chrigelburri 18:306d362d692b 937
chrigelburri 18:306d362d692b 938 void USBInit()
chrigelburri 18:306d362d692b 939 {
chrigelburri 18:306d362d692b 940 return _controller.Init();
chrigelburri 18:306d362d692b 941 }
chrigelburri 18:306d362d692b 942
chrigelburri 18:306d362d692b 943 void USBLoop()
chrigelburri 18:306d362d692b 944 {
chrigelburri 18:306d362d692b 945
chrigelburri 18:306d362d692b 946 return _controller.Loop();
chrigelburri 18:306d362d692b 947
chrigelburri 18:306d362d692b 948 }
chrigelburri 18:306d362d692b 949
chrigelburri 18:306d362d692b 950 u8* USBGetBuffer(u32* len)
chrigelburri 18:306d362d692b 951 {
chrigelburri 18:306d362d692b 952 *len = USB_RAM_SIZE - sizeof(HostController);
chrigelburri 18:306d362d692b 953 return _controller.SRAM;
chrigelburri 18:306d362d692b 954 }
chrigelburri 18:306d362d692b 955
chrigelburri 18:306d362d692b 956 static Setup* GetSetup(int device)
chrigelburri 18:306d362d692b 957 {
chrigelburri 18:306d362d692b 958 if (device == 0)
chrigelburri 18:306d362d692b 959 return &_controller._setupZero;
chrigelburri 18:306d362d692b 960
chrigelburri 18:306d362d692b 961 if (device < 1 || device > MAX_DEVICES)
chrigelburri 18:306d362d692b 962 return 0;
chrigelburri 18:306d362d692b 963 return &_controller.Devices[device-1].SetupBuffer;
chrigelburri 18:306d362d692b 964 }
chrigelburri 18:306d362d692b 965
chrigelburri 18:306d362d692b 966 // Loop until IO on endpoint is complete
chrigelburri 18:306d362d692b 967 static int WaitIODone(Endpoint* endpoint)
chrigelburri 18:306d362d692b 968 {
chrigelburri 18:306d362d692b 969 LOG("Waiting\r\n\r");
chrigelburri 18:306d362d692b 970 if (endpoint->CurrentState == Endpoint::NotQueued)
chrigelburri 18:306d362d692b 971 return 0;
chrigelburri 18:306d362d692b 972 while (endpoint->CurrentState != Endpoint::Idle)
chrigelburri 18:306d362d692b 973 //LOG("Loopz");
chrigelburri 18:306d362d692b 974 USBLoop(); // May generate callbacks, mount or unmount devices etc
chrigelburri 18:306d362d692b 975 int status = endpoint->Status();
chrigelburri 18:306d362d692b 976 if (status == 0)
chrigelburri 18:306d362d692b 977 return endpoint->Length;
chrigelburri 18:306d362d692b 978 LOG("DATA SENT\r\n\r");
chrigelburri 18:306d362d692b 979 return -status;
chrigelburri 18:306d362d692b 980 }
chrigelburri 18:306d362d692b 981
chrigelburri 18:306d362d692b 982 int USBTransfer(int device, int ep, u8 flags, u8* data, int length, USBCallback callback, void* userData)
chrigelburri 18:306d362d692b 983 {
chrigelburri 18:306d362d692b 984 Endpoint* endpoint = _controller.GetEndpoint(device,ep);
chrigelburri 18:306d362d692b 985 if (!endpoint)
chrigelburri 18:306d362d692b 986 return ERR_ENDPOINT_NOT_FOUND;
chrigelburri 18:306d362d692b 987
chrigelburri 18:306d362d692b 988 WaitIODone(endpoint);
chrigelburri 18:306d362d692b 989 LOG("before ep=%x,callback=%p\r\r\n",endpoint,endpoint->Callback);
chrigelburri 18:306d362d692b 990 endpoint->Flags = flags;
chrigelburri 18:306d362d692b 991 endpoint->Data = data;
chrigelburri 18:306d362d692b 992 endpoint->Length = length;
chrigelburri 18:306d362d692b 993 endpoint->Callback = callback;
chrigelburri 18:306d362d692b 994 endpoint->UserData = userData;
chrigelburri 18:306d362d692b 995 LOG("ep=%x,callback=%p\r\r\n",ep,callback);
chrigelburri 18:306d362d692b 996 if (ep == 0)
chrigelburri 18:306d362d692b 997 _controller.Transfer(endpoint,TOKEN_SETUP,(u8*)GetSetup(device),8,Endpoint::SetupQueued);
chrigelburri 18:306d362d692b 998 else
chrigelburri 18:306d362d692b 999 _controller.Transfer(endpoint,flags & 0x80 ? TOKEN_IN : TOKEN_OUT,data,length,Endpoint::DataQueued);
chrigelburri 18:306d362d692b 1000 if (callback)
chrigelburri 18:306d362d692b 1001 return IO_PENDING;
chrigelburri 18:306d362d692b 1002 return WaitIODone(endpoint);
chrigelburri 18:306d362d692b 1003 }
chrigelburri 18:306d362d692b 1004
chrigelburri 18:306d362d692b 1005 int USBControlTransfer(int device, int request_type, int request, int value, int index, u8* data, int length, USBCallback callback, void * userData)
chrigelburri 18:306d362d692b 1006 {
chrigelburri 18:306d362d692b 1007 Setup* setup = GetSetup(device);
chrigelburri 18:306d362d692b 1008 if (!setup)
chrigelburri 18:306d362d692b 1009 return ERR_DEVICE_NOT_FOUND;
chrigelburri 18:306d362d692b 1010
chrigelburri 18:306d362d692b 1011 // Async control calls may overwrite setup buffer of previous call, so we need to wait before setting up next call
chrigelburri 18:306d362d692b 1012 WaitIODone(_controller.GetEndpoint(device,0));
chrigelburri 18:306d362d692b 1013
chrigelburri 18:306d362d692b 1014 setup->bm_request_type = request_type;
chrigelburri 18:306d362d692b 1015 setup->b_request = request;
chrigelburri 18:306d362d692b 1016 setup->w_value = value;
chrigelburri 18:306d362d692b 1017 setup->w_index = index;
chrigelburri 18:306d362d692b 1018 setup->w_length = length;
chrigelburri 18:306d362d692b 1019 return USBTransfer(device,0,request_type & DEVICE_TO_HOST,data,length,callback,userData);
chrigelburri 18:306d362d692b 1020 }
chrigelburri 18:306d362d692b 1021
chrigelburri 18:306d362d692b 1022 int USBInterruptTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
chrigelburri 18:306d362d692b 1023 {
chrigelburri 18:306d362d692b 1024 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_INTERRUPT,data,length,callback,userData);
chrigelburri 18:306d362d692b 1025 }
chrigelburri 18:306d362d692b 1026
chrigelburri 18:306d362d692b 1027 int USBBulkTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
chrigelburri 18:306d362d692b 1028 {
chrigelburri 18:306d362d692b 1029 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_BULK,data,length,callback,userData);
chrigelburri 18:306d362d692b 1030 }
chrigelburri 18:306d362d692b 1031
chrigelburri 18:306d362d692b 1032 int GetDescriptor(int device, int descType,int descIndex, u8* data, int length)
chrigelburri 18:306d362d692b 1033 {
chrigelburri 18:306d362d692b 1034 return USBControlTransfer(device,DEVICE_TO_HOST | RECIPIENT_DEVICE, GET_DESCRIPTOR,(descType << 8)|(descIndex), 0, data, length, 0);
chrigelburri 18:306d362d692b 1035 }
chrigelburri 18:306d362d692b 1036
chrigelburri 18:306d362d692b 1037 int GetString(int device, int index, char* dst, int length)
chrigelburri 18:306d362d692b 1038 {
chrigelburri 18:306d362d692b 1039 u8 buffer[255];
chrigelburri 18:306d362d692b 1040 int le = GetDescriptor(device,DESCRIPTOR_TYPE_STRING,index,buffer,sizeof(buffer));
chrigelburri 18:306d362d692b 1041 if (le < 0)
chrigelburri 18:306d362d692b 1042 return le;
chrigelburri 18:306d362d692b 1043 if (length < 1)
chrigelburri 18:306d362d692b 1044 return -1;
chrigelburri 18:306d362d692b 1045 length <<= 1;
chrigelburri 18:306d362d692b 1046 if (le > length)
chrigelburri 18:306d362d692b 1047 le = length;
chrigelburri 18:306d362d692b 1048 for (int j = 2; j < le; j += 2)
chrigelburri 18:306d362d692b 1049 *dst++ = buffer[j];
chrigelburri 18:306d362d692b 1050 *dst = 0;
chrigelburri 18:306d362d692b 1051 return (le>>1)-1;
chrigelburri 18:306d362d692b 1052 }
chrigelburri 18:306d362d692b 1053
chrigelburri 18:306d362d692b 1054 int SetAddress(int device, int new_addr)
chrigelburri 18:306d362d692b 1055 {
chrigelburri 18:306d362d692b 1056 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_ADDRESS, new_addr, 0, 0, 0, 0);
chrigelburri 18:306d362d692b 1057 }
chrigelburri 18:306d362d692b 1058
chrigelburri 18:306d362d692b 1059 int SetConfiguration(int device, int configNum)
chrigelburri 18:306d362d692b 1060 {
chrigelburri 18:306d362d692b 1061 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_CONFIGURATION, configNum, 0, 0, 0, 0);
chrigelburri 18:306d362d692b 1062 }
chrigelburri 18:306d362d692b 1063
chrigelburri 18:306d362d692b 1064 int SetInterface(int device, int ifNum, int altNum)
chrigelburri 18:306d362d692b 1065 {
chrigelburri 18:306d362d692b 1066 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_INTERFACE, SET_INTERFACE, altNum, ifNum, 0, 0, 0);
chrigelburri 18:306d362d692b 1067 }
chrigelburri 18:306d362d692b 1068
chrigelburri 18:306d362d692b 1069 // HUB stuff
chrigelburri 18:306d362d692b 1070 int SetPortFeature(int device, int feature, int index)
chrigelburri 18:306d362d692b 1071 {
chrigelburri 18:306d362d692b 1072 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,SET_FEATURE,feature,index,0,0);
chrigelburri 18:306d362d692b 1073 }
chrigelburri 18:306d362d692b 1074
chrigelburri 18:306d362d692b 1075 int ClearPortFeature(int device, int feature, int index)
chrigelburri 18:306d362d692b 1076 {
chrigelburri 18:306d362d692b 1077 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,CLEAR_FEATURE,feature,index,0,0);
chrigelburri 18:306d362d692b 1078 }
chrigelburri 18:306d362d692b 1079
chrigelburri 18:306d362d692b 1080 int SetPortPower(int device, int port)
chrigelburri 18:306d362d692b 1081 {
chrigelburri 18:306d362d692b 1082 int r = SetPortFeature(device,PORT_POWER,port);
chrigelburri 18:306d362d692b 1083 _controller.DelayMS(20); // 80ms to turn on a hubs power... DESCRIPTOR? todo
chrigelburri 18:306d362d692b 1084 return r;
chrigelburri 18:306d362d692b 1085 }
chrigelburri 18:306d362d692b 1086
chrigelburri 18:306d362d692b 1087 int SetPortReset(int device, int port)
chrigelburri 18:306d362d692b 1088 {
chrigelburri 18:306d362d692b 1089 return SetPortFeature(device,PORT_RESET,port);
chrigelburri 18:306d362d692b 1090 }
chrigelburri 18:306d362d692b 1091
chrigelburri 18:306d362d692b 1092 int GetPortStatus(int device, int port, u32* status)
chrigelburri 18:306d362d692b 1093 {
chrigelburri 18:306d362d692b 1094 return USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,GET_STATUS,0,port,(u8*)status,4);
chrigelburri 18:306d362d692b 1095 }
chrigelburri 18:306d362d692b 1096
chrigelburri 18:306d362d692b 1097 #endif