Ad van der Weiden / myUSBHost

Almost identical to USBHostShell; reads all endpoint descriptors

Dependents:   myBlueUSB mbed_TANK_Kinect myBlueUSB_ros myBlueUSB_localfix

USBHost.cpp@3:58c785c2b381, 2011-07-01 (annotated)

Committer:
networker
Date:
Fri Jul 01 09:13:39 2011 +0000
Revision:
3:58c785c2b381
Parent:
1:05d0fe737d3b 
revised massStorage to cope with different endpoint addresses

Who changed what in which revision?

UserRevisionLine numberNew contents of line
networker 0:d6bff1c2dab1 1
networker 0:d6bff1c2dab1 2 /*
networker 0:d6bff1c2dab1 3 Copyright (c) 2010 Peter Barrett
networker 0:d6bff1c2dab1 4
networker 0:d6bff1c2dab1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
networker 0:d6bff1c2dab1 6 of this software and associated documentation files (the "Software"), to deal
networker 0:d6bff1c2dab1 7 in the Software without restriction, including without limitation the rights
networker 0:d6bff1c2dab1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
networker 0:d6bff1c2dab1 9 copies of the Software, and to permit persons to whom the Software is
networker 0:d6bff1c2dab1 10 furnished to do so, subject to the following conditions:
networker 0:d6bff1c2dab1 11
networker 0:d6bff1c2dab1 12 The above copyright notice and this permission notice shall be included in
networker 0:d6bff1c2dab1 13 all copies or substantial portions of the Software.
networker 0:d6bff1c2dab1 14
networker 0:d6bff1c2dab1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
networker 0:d6bff1c2dab1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
networker 0:d6bff1c2dab1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
networker 0:d6bff1c2dab1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
networker 0:d6bff1c2dab1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
networker 0:d6bff1c2dab1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
networker 0:d6bff1c2dab1 21 THE SOFTWARE.
networker 0:d6bff1c2dab1 22 */
networker 0:d6bff1c2dab1 23
networker 0:d6bff1c2dab1 24 #include "mbed.h"
networker 0:d6bff1c2dab1 25 #include "USBHost.h"
networker 1:05d0fe737d3b 26 #include "Utils.h"
networker 0:d6bff1c2dab1 27
networker 0:d6bff1c2dab1 28 // Config (default uses x bytes)
networker 0:d6bff1c2dab1 29 #define MAX_DEVICES 8 // Max number of devices
networker 0:d6bff1c2dab1 30 #define MAX_ENDPOINTS_TOTAL 16 // Max number of endpoints total
networker 0:d6bff1c2dab1 31 #define MAX_ENDPOINTS_PER_DEVICE 8 // Max number of endpoints for any one device
networker 0:d6bff1c2dab1 32
networker 0:d6bff1c2dab1 33 #define USBLOG 1
networker 0:d6bff1c2dab1 34 #if USBLOG
networker 0:d6bff1c2dab1 35 #define LOG(...) printf(__VA_ARGS__)
networker 0:d6bff1c2dab1 36 #else
networker 0:d6bff1c2dab1 37 #define LOG(...) do {} while(0)
networker 0:d6bff1c2dab1 38 #endif
networker 0:d6bff1c2dab1 39
networker 0:d6bff1c2dab1 40 // USB host structures
networker 0:d6bff1c2dab1 41
networker 0:d6bff1c2dab1 42 #define USB_RAM_SIZE 16*1024 // AHB SRAM block 1 TODO MACHINE DEPENDENT
networker 0:d6bff1c2dab1 43 #define USB_RAM_BASE 0x2007C000
networker 0:d6bff1c2dab1 44
networker 0:d6bff1c2dab1 45 #define TOKEN_SETUP 0
networker 0:d6bff1c2dab1 46 #define TOKEN_IN 1
networker 0:d6bff1c2dab1 47 #define TOKEN_OUT 2
networker 0:d6bff1c2dab1 48
networker 0:d6bff1c2dab1 49 // Status flags from hub
networker 0:d6bff1c2dab1 50 #define PORT_CONNECTION 0
networker 0:d6bff1c2dab1 51 #define PORT_ENABLE 1
networker 0:d6bff1c2dab1 52 #define PORT_SUSPEND 2
networker 0:d6bff1c2dab1 53 #define PORT_OVER_CURRENT 3
networker 0:d6bff1c2dab1 54 #define PORT_RESET 4
networker 0:d6bff1c2dab1 55 #define PORT_POWER 8
networker 0:d6bff1c2dab1 56 #define PORT_LOW_SPEED 9
networker 0:d6bff1c2dab1 57
networker 0:d6bff1c2dab1 58 #define C_PORT_CONNECTION 16
networker 0:d6bff1c2dab1 59 #define C_PORT_ENABLE 17
networker 0:d6bff1c2dab1 60 #define C_PORT_SUSPEND 18
networker 0:d6bff1c2dab1 61 #define C_PORT_OVER_CURRENT 19
networker 0:d6bff1c2dab1 62 #define C_PORT_RESET 20
networker 0:d6bff1c2dab1 63
networker 0:d6bff1c2dab1 64 typedef struct {
networker 0:d6bff1c2dab1 65 u8 bm_request_type;
networker 0:d6bff1c2dab1 66 u8 b_request;
networker 0:d6bff1c2dab1 67 u16 w_value;
networker 0:d6bff1c2dab1 68 u16 w_index;
networker 0:d6bff1c2dab1 69 u16 w_length;
networker 0:d6bff1c2dab1 70 } Setup;
networker 0:d6bff1c2dab1 71
networker 0:d6bff1c2dab1 72
networker 0:d6bff1c2dab1 73 // Hub stuff is kept private just to keep api simple
networker 0:d6bff1c2dab1 74 int SetPortFeature(int device, int feature, int index);
networker 0:d6bff1c2dab1 75 int ClearPortFeature(int device, int feature, int index);
networker 0:d6bff1c2dab1 76 int SetPortPower(int device, int port);
networker 0:d6bff1c2dab1 77 int SetPortReset(int device, int port);
networker 0:d6bff1c2dab1 78 int GetPortStatus(int device, int port, u32* status);
networker 0:d6bff1c2dab1 79
networker 0:d6bff1c2dab1 80 //===================================================================
networker 0:d6bff1c2dab1 81 //===================================================================
networker 0:d6bff1c2dab1 82 // Hardware defines
networker 0:d6bff1c2dab1 83
networker 0:d6bff1c2dab1 84 // HcControl
networker 0:d6bff1c2dab1 85 #define PeriodicListEnable 0x00000004
networker 0:d6bff1c2dab1 86 #define IsochronousEnable 0x00000008
networker 0:d6bff1c2dab1 87 #define ControlListEnable 0x00000010
networker 0:d6bff1c2dab1 88 #define BulkListEnable 0x00000020
networker 0:d6bff1c2dab1 89 #define OperationalMask 0x00000080
networker 0:d6bff1c2dab1 90 #define HostControllerFunctionalState 0x000000C0
networker 0:d6bff1c2dab1 91
networker 0:d6bff1c2dab1 92 // HcCommandStatus
networker 0:d6bff1c2dab1 93 #define HostControllerReset 0x00000001
networker 0:d6bff1c2dab1 94 #define ControlListFilled 0x00000002
networker 0:d6bff1c2dab1 95 #define BulkListFilled 0x00000004
networker 0:d6bff1c2dab1 96
networker 0:d6bff1c2dab1 97 // HcInterruptStatus Register
networker 0:d6bff1c2dab1 98 #define WritebackDoneHead 0x00000002
networker 0:d6bff1c2dab1 99 #define StartofFrame 0x00000004
networker 0:d6bff1c2dab1 100 #define ResumeDetected 0x00000008
networker 0:d6bff1c2dab1 101 #define UnrecoverableError 0x00000010
networker 0:d6bff1c2dab1 102 #define FrameNumberOverflow 0x00000020
networker 0:d6bff1c2dab1 103 #define RootHubStatusChange 0x00000040
networker 0:d6bff1c2dab1 104 #define OwnershipChange 0x00000080
networker 0:d6bff1c2dab1 105 #define MasterInterruptEnable 0x80000000
networker 0:d6bff1c2dab1 106
networker 0:d6bff1c2dab1 107 // HcRhStatus
networker 0:d6bff1c2dab1 108 #define SetGlobalPower 0x00010000
networker 0:d6bff1c2dab1 109 #define DeviceRemoteWakeupEnable 0x00008000
networker 0:d6bff1c2dab1 110
networker 0:d6bff1c2dab1 111 // HcRhPortStatus (hub 0, port 1)
networker 0:d6bff1c2dab1 112 #define CurrentConnectStatus 0x00000001
networker 0:d6bff1c2dab1 113 #define PortEnableStatus 0x00000002
networker 0:d6bff1c2dab1 114 #define PortSuspendStatus 0x00000004
networker 0:d6bff1c2dab1 115 #define PortOverCurrentIndicator 0x00000008
networker 0:d6bff1c2dab1 116 #define PortResetStatus 0x00000010
networker 0:d6bff1c2dab1 117
networker 0:d6bff1c2dab1 118 #define PortPowerStatus 0x00000100
networker 0:d6bff1c2dab1 119 #define LowspeedDevice 0x00000200
networker 0:d6bff1c2dab1 120 #define HighspeedDevice 0x00000400
networker 0:d6bff1c2dab1 121
networker 0:d6bff1c2dab1 122 #define ConnectStatusChange (CurrentConnectStatus << 16)
networker 0:d6bff1c2dab1 123 #define PortResetStatusChange (PortResetStatus << 16)
networker 0:d6bff1c2dab1 124
networker 0:d6bff1c2dab1 125
networker 0:d6bff1c2dab1 126 #define TD_ROUNDING (u32)0x00040000
networker 0:d6bff1c2dab1 127 #define TD_SETUP (u32)0x00000000
networker 0:d6bff1c2dab1 128 #define TD_IN (u32)0x00100000
networker 0:d6bff1c2dab1 129 #define TD_OUT (u32)0x00080000
networker 0:d6bff1c2dab1 130 #define TD_DELAY_INT(x) (u32)((x) << 21)
networker 0:d6bff1c2dab1 131 #define TD_TOGGLE_0 (u32)0x02000000
networker 0:d6bff1c2dab1 132 #define TD_TOGGLE_1 (u32)0x03000000
networker 0:d6bff1c2dab1 133 #define TD_CC (u32)0xF0000000
networker 0:d6bff1c2dab1 134
networker 0:d6bff1c2dab1 135 // HostController EndPoint Descriptor
networker 0:d6bff1c2dab1 136 typedef struct {
networker 0:d6bff1c2dab1 137 volatile u32 Control;
networker 0:d6bff1c2dab1 138 volatile u32 TailTd;
networker 0:d6bff1c2dab1 139 volatile u32 HeadTd;
networker 0:d6bff1c2dab1 140 volatile u32 Next;
networker 0:d6bff1c2dab1 141 } HCED;
networker 0:d6bff1c2dab1 142
networker 0:d6bff1c2dab1 143 // HostController Transfer Descriptor
networker 0:d6bff1c2dab1 144 typedef struct {
networker 0:d6bff1c2dab1 145 volatile u32 Control;
networker 0:d6bff1c2dab1 146 volatile u32 CurrBufPtr;
networker 0:d6bff1c2dab1 147 volatile u32 Next;
networker 0:d6bff1c2dab1 148 volatile u32 BufEnd;
networker 0:d6bff1c2dab1 149 } HCTD;
networker 0:d6bff1c2dab1 150
networker 0:d6bff1c2dab1 151 // Host Controller Communication Area
networker 0:d6bff1c2dab1 152 typedef struct {
networker 0:d6bff1c2dab1 153 volatile u32 InterruptTable[32];
networker 0:d6bff1c2dab1 154 volatile u16 FrameNumber;
networker 0:d6bff1c2dab1 155 volatile u16 FrameNumberPad;
networker 0:d6bff1c2dab1 156 volatile u32 DoneHead;
networker 0:d6bff1c2dab1 157 volatile u8 Reserved[120];
networker 0:d6bff1c2dab1 158 } HCCA;
networker 0:d6bff1c2dab1 159
networker 0:d6bff1c2dab1 160 //====================================================================================
networker 0:d6bff1c2dab1 161 //====================================================================================
networker 0:d6bff1c2dab1 162
networker 0:d6bff1c2dab1 163 class HostController;
networker 0:d6bff1c2dab1 164 class Endpoint;
networker 0:d6bff1c2dab1 165 class Device;
networker 0:d6bff1c2dab1 166
networker 0:d6bff1c2dab1 167 // must be 3*16 bytes long
networker 0:d6bff1c2dab1 168 class Endpoint
networker 0:d6bff1c2dab1 169 {
networker 0:d6bff1c2dab1 170 public:
networker 0:d6bff1c2dab1 171 HCED EndpointDescriptor; // Pointer to EndpointDescriptor == Pointer to Endpoint
networker 0:d6bff1c2dab1 172 HCTD TDHead;
networker 0:d6bff1c2dab1 173
networker 0:d6bff1c2dab1 174 enum State
networker 0:d6bff1c2dab1 175 {
networker 0:d6bff1c2dab1 176 Free,
networker 0:d6bff1c2dab1 177 NotQueued,
networker 0:d6bff1c2dab1 178 Idle,
networker 0:d6bff1c2dab1 179 SetupQueued,
networker 0:d6bff1c2dab1 180 DataQueued,
networker 0:d6bff1c2dab1 181 StatusQueued,
networker 0:d6bff1c2dab1 182 CallbackPending
networker 0:d6bff1c2dab1 183 };
networker 0:d6bff1c2dab1 184
networker 0:d6bff1c2dab1 185 volatile u8 CurrentState;
networker 0:d6bff1c2dab1 186 u8 Flags; // 0x80 In, 0x03 mask endpoint type
networker 0:d6bff1c2dab1 187
networker 0:d6bff1c2dab1 188 u16 Length;
networker 0:d6bff1c2dab1 189 u8* Data;
networker 0:d6bff1c2dab1 190 USBCallback Callback; // Must be a multiple of 16 bytes long
networker 0:d6bff1c2dab1 191 void* UserData;
networker 0:d6bff1c2dab1 192
networker 0:d6bff1c2dab1 193 int Address()
networker 0:d6bff1c2dab1 194 {
networker 0:d6bff1c2dab1 195 int ep = (EndpointDescriptor.Control >> 7) & 0xF;
networker 0:d6bff1c2dab1 196 if (ep)
networker 0:d6bff1c2dab1 197 ep |= Flags & 0x80;
networker 0:d6bff1c2dab1 198 return ep;
networker 0:d6bff1c2dab1 199 }
networker 0:d6bff1c2dab1 200
networker 0:d6bff1c2dab1 201 int Device()
networker 0:d6bff1c2dab1 202 {
networker 0:d6bff1c2dab1 203 return EndpointDescriptor.Control & 0x7F;
networker 0:d6bff1c2dab1 204 }
networker 0:d6bff1c2dab1 205
networker 0:d6bff1c2dab1 206 int Status()
networker 0:d6bff1c2dab1 207 {
networker 0:d6bff1c2dab1 208 return (TDHead.Control >> 28) & 0xF;
networker 0:d6bff1c2dab1 209 }
networker 0:d6bff1c2dab1 210
networker 0:d6bff1c2dab1 211 u32 Enqueue(u32 head)
networker 0:d6bff1c2dab1 212 {
networker 0:d6bff1c2dab1 213 if (CurrentState == NotQueued)
networker 0:d6bff1c2dab1 214 {
networker 0:d6bff1c2dab1 215 EndpointDescriptor.Next = head;
networker 0:d6bff1c2dab1 216 head = (u32)&EndpointDescriptor;
networker 0:d6bff1c2dab1 217 CurrentState = Idle;
networker 0:d6bff1c2dab1 218 }
networker 0:d6bff1c2dab1 219 return head;
networker 0:d6bff1c2dab1 220 }
networker 0:d6bff1c2dab1 221 };
networker 0:d6bff1c2dab1 222
networker 0:d6bff1c2dab1 223 class Device
networker 0:d6bff1c2dab1 224 {
networker 0:d6bff1c2dab1 225 public:
networker 0:d6bff1c2dab1 226 u8 _endpointMap[MAX_ENDPOINTS_PER_DEVICE*2];
networker 0:d6bff1c2dab1 227 u8 Hub;
networker 0:d6bff1c2dab1 228 u8 Port;
networker 0:d6bff1c2dab1 229 u8 Addr;
networker 0:d6bff1c2dab1 230 u8 Pad;
networker 0:d6bff1c2dab1 231
networker 0:d6bff1c2dab1 232 // Only if this device is a hub
networker 0:d6bff1c2dab1 233 u8 HubPortCount; // nonzero if this is a hub
networker 0:d6bff1c2dab1 234 u8 HubInterruptData;
networker 0:d6bff1c2dab1 235 u8 HubMap;
networker 0:d6bff1c2dab1 236 u8 HubMask;
networker 0:d6bff1c2dab1 237
networker 0:d6bff1c2dab1 238 int Flags; // 1 = Disconnected
networker 0:d6bff1c2dab1 239
networker 0:d6bff1c2dab1 240 Setup SetupBuffer;
networker 0:d6bff1c2dab1 241
networker 0:d6bff1c2dab1 242 // Allocate endpoint zero
networker 0:d6bff1c2dab1 243 int Init(DeviceDescriptor* d, int hub, int port, int addr, int lowSpeed)
networker 0:d6bff1c2dab1 244 {
networker 0:d6bff1c2dab1 245 Hub = hub;
networker 0:d6bff1c2dab1 246 Port = port;
networker 0:d6bff1c2dab1 247 Addr = addr;
networker 0:d6bff1c2dab1 248 Flags = lowSpeed;
networker 0:d6bff1c2dab1 249 memset(_endpointMap,0xFF,sizeof(_endpointMap));
networker 0:d6bff1c2dab1 250 return 0;
networker 0:d6bff1c2dab1 251 }
networker 0:d6bff1c2dab1 252
networker 0:d6bff1c2dab1 253 int SetEndpointIndex(int ep, int endpointIndex)
networker 0:d6bff1c2dab1 254 {
networker 0:d6bff1c2dab1 255 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
networker 0:d6bff1c2dab1 256 {
networker 0:d6bff1c2dab1 257 if (_endpointMap[i] == 0xFF) // Add endpoint to map
networker 0:d6bff1c2dab1 258 {
networker 0:d6bff1c2dab1 259 _endpointMap[i] = ep;
networker 0:d6bff1c2dab1 260 _endpointMap[i+1] = endpointIndex;
networker 0:d6bff1c2dab1 261 return 0;
networker 0:d6bff1c2dab1 262 }
networker 0:d6bff1c2dab1 263 }
networker 0:d6bff1c2dab1 264 return ERR_ENDPOINT_NONE_LEFT;
networker 0:d6bff1c2dab1 265 }
networker 0:d6bff1c2dab1 266
networker 0:d6bff1c2dab1 267 int GetEndpointIndex(int ep)
networker 0:d6bff1c2dab1 268 {
networker 0:d6bff1c2dab1 269 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
networker 0:d6bff1c2dab1 270 {
networker 0:d6bff1c2dab1 271 if (_endpointMap[i] == ep)
networker 0:d6bff1c2dab1 272 return _endpointMap[i+1];
networker 0:d6bff1c2dab1 273 if (_endpointMap[i] == 0xFF)
networker 0:d6bff1c2dab1 274 break;
networker 0:d6bff1c2dab1 275 }
networker 0:d6bff1c2dab1 276 return -1;
networker 0:d6bff1c2dab1 277 }
networker 0:d6bff1c2dab1 278 };
networker 0:d6bff1c2dab1 279
networker 0:d6bff1c2dab1 280 class HostController
networker 0:d6bff1c2dab1 281 {
networker 0:d6bff1c2dab1 282 public:
networker 0:d6bff1c2dab1 283 HCCA CommunicationArea;
networker 0:d6bff1c2dab1 284 Endpoint Endpoints[MAX_ENDPOINTS_TOTAL]; // Multiple of 16
networker 0:d6bff1c2dab1 285
networker 0:d6bff1c2dab1 286 Endpoint EndpointZero; // For device enumeration
networker 0:d6bff1c2dab1 287 HCTD _commonTail;
networker 0:d6bff1c2dab1 288 Setup _setupZero;
networker 0:d6bff1c2dab1 289
networker 0:d6bff1c2dab1 290 Device Devices[MAX_DEVICES];
networker 0:d6bff1c2dab1 291 u32 _frameNumber; // 32 bit ms counter
networker 0:d6bff1c2dab1 292
networker 0:d6bff1c2dab1 293 u8 _callbacksPending; // Endpoints with callbacks are pending, set from ISR via ProcessDoneQueue
networker 0:d6bff1c2dab1 294 u8 _rootHubStatusChange; // Root hub status has changed, set from ISR
networker 0:d6bff1c2dab1 295 u8 _unused0;
networker 0:d6bff1c2dab1 296 u8 _unused1;
networker 0:d6bff1c2dab1 297
networker 0:d6bff1c2dab1 298 u8 _connectPending; // Reset has initiated a connect
networker 0:d6bff1c2dab1 299 u8 _connectCountdown; // Number of ms left after reset before we can connect
networker 0:d6bff1c2dab1 300 u8 _connectHub; // Will connect on this hub
networker 0:d6bff1c2dab1 301 u8 _connectPort; // ... and this port
networker 0:d6bff1c2dab1 302
networker 0:d6bff1c2dab1 303 u8 SRAM[0]; // Start of free SRAM
networker 0:d6bff1c2dab1 304
networker 0:d6bff1c2dab1 305 void Loop()
networker 0:d6bff1c2dab1 306 {
networker 0:d6bff1c2dab1 307 u16 elapsed = CommunicationArea.FrameNumber - (u16)_frameNumber; // extend to 32 bits
networker 0:d6bff1c2dab1 308 _frameNumber += elapsed;
networker 0:d6bff1c2dab1 309
networker 0:d6bff1c2dab1 310 // Do callbacks, if any
networker 0:d6bff1c2dab1 311 while (_callbacksPending)
networker 0:d6bff1c2dab1 312 {
networker 0:d6bff1c2dab1 313 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
networker 0:d6bff1c2dab1 314 {
networker 0:d6bff1c2dab1 315 Endpoint* endpoint = Endpoints + i;
networker 0:d6bff1c2dab1 316 if (endpoint->CurrentState == Endpoint::CallbackPending)
networker 0:d6bff1c2dab1 317 {
networker 0:d6bff1c2dab1 318 _callbacksPending--;
networker 0:d6bff1c2dab1 319 endpoint->CurrentState = Endpoint::Idle;
networker 0:d6bff1c2dab1 320 endpoint->Callback(endpoint->Device(),endpoint->Address(),endpoint->Status(),endpoint->Data,endpoint->Length,endpoint->UserData);
networker 0:d6bff1c2dab1 321 }
networker 0:d6bff1c2dab1 322 }
networker 0:d6bff1c2dab1 323 }
networker 0:d6bff1c2dab1 324
networker 0:d6bff1c2dab1 325 // Deal with changes on the root hub
networker 0:d6bff1c2dab1 326 if (_rootHubStatusChange)
networker 0:d6bff1c2dab1 327 {
networker 0:d6bff1c2dab1 328 u32 status = LPC_USB->HcRhPortStatus1;
networker 0:d6bff1c2dab1 329 _rootHubStatusChange = 0;
networker 0:d6bff1c2dab1 330 if (status >> 16)
networker 0:d6bff1c2dab1 331 {
networker 0:d6bff1c2dab1 332 HubStatusChange(0,1,status);
networker 0:d6bff1c2dab1 333 LPC_USB->HcRhPortStatus1 = status & 0xFFFF0000; // clear status changes
networker 0:d6bff1c2dab1 334 }
networker 0:d6bff1c2dab1 335 }
networker 0:d6bff1c2dab1 336
networker 0:d6bff1c2dab1 337 // Connect after reset timeout
networker 0:d6bff1c2dab1 338 if (_connectCountdown)
networker 0:d6bff1c2dab1 339 {
networker 0:d6bff1c2dab1 340 if (elapsed >= _connectCountdown)
networker 0:d6bff1c2dab1 341 {
networker 0:d6bff1c2dab1 342 _connectCountdown = 0;
networker 0:d6bff1c2dab1 343 Connect(_connectHub,_connectPort & 0x7F,_connectPort & 0x80);
networker 0:d6bff1c2dab1 344 } else
networker 0:d6bff1c2dab1 345 _connectCountdown -= elapsed;
networker 0:d6bff1c2dab1 346 }
networker 0:d6bff1c2dab1 347 }
networker 0:d6bff1c2dab1 348
networker 0:d6bff1c2dab1 349 // HubInterrupt - bitmap in dev->HubInterruptData
networker 0:d6bff1c2dab1 350 void HubInterrupt(int device)
networker 0:d6bff1c2dab1 351 {
networker 0:d6bff1c2dab1 352 Device* dev = &Devices[device-1];
networker 0:d6bff1c2dab1 353 for (int i = 0; i < dev->HubPortCount; i++)
networker 0:d6bff1c2dab1 354 {
networker 0:d6bff1c2dab1 355 int port = i+1;
networker 0:d6bff1c2dab1 356 if (dev->HubInterruptData & (1 << port))
networker 0:d6bff1c2dab1 357 {
networker 0:d6bff1c2dab1 358 u32 status = 0;
networker 0:d6bff1c2dab1 359 GetPortStatus(device,port,&status);
networker 0:d6bff1c2dab1 360 if (status >> 16)
networker 0:d6bff1c2dab1 361 {
networker 0:d6bff1c2dab1 362 if (_connectPending && (status & ConnectStatusChange))
networker 0:d6bff1c2dab1 363 continue; // Don't connect again until previous device has been added and addressed
networker 0:d6bff1c2dab1 364
networker 0:d6bff1c2dab1 365 HubStatusChange(device,port,status);
networker 0:d6bff1c2dab1 366 if (status & ConnectStatusChange)
networker 0:d6bff1c2dab1 367 ClearPortFeature(device,C_PORT_CONNECTION,port);
networker 0:d6bff1c2dab1 368 if (status & PortResetStatusChange)
networker 0:d6bff1c2dab1 369 ClearPortFeature(device,C_PORT_RESET,port);
networker 0:d6bff1c2dab1 370 }
networker 0:d6bff1c2dab1 371 }
networker 0:d6bff1c2dab1 372 }
networker 0:d6bff1c2dab1 373 }
networker 0:d6bff1c2dab1 374
networker 0:d6bff1c2dab1 375 static void HubInterruptCallback(int device, int endpoint, int status, u8* data, int len, void* userData)
networker 0:d6bff1c2dab1 376 {
networker 0:d6bff1c2dab1 377 HostController* controller = (HostController*)userData;
networker 0:d6bff1c2dab1 378 if (status == 0)
networker 0:d6bff1c2dab1 379 controller->HubInterrupt(device);
networker 0:d6bff1c2dab1 380 USBInterruptTransfer(device,endpoint,data,1,HubInterruptCallback,userData);
networker 0:d6bff1c2dab1 381 }
networker 0:d6bff1c2dab1 382
networker 0:d6bff1c2dab1 383 int InitHub(int device)
networker 0:d6bff1c2dab1 384 {
networker 0:d6bff1c2dab1 385 u8 buf[16];
networker 0:d6bff1c2dab1 386 int r= USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_DEVICE,GET_DESCRIPTOR,(DESCRIPTOR_TYPE_HUB << 8),0,buf,sizeof(buf));
networker 0:d6bff1c2dab1 387 if (r < 0)
networker 0:d6bff1c2dab1 388 return ERR_HUB_INIT_FAILED;
networker 0:d6bff1c2dab1 389
networker 0:d6bff1c2dab1 390 // turn on power on the hubs ports
networker 0:d6bff1c2dab1 391 Device* dev = &Devices[device-1];
networker 0:d6bff1c2dab1 392 int ports = buf[2];
networker 0:d6bff1c2dab1 393 dev->HubPortCount = ports;
networker 0:d6bff1c2dab1 394 for (int i = 0; i < ports; i++)
networker 0:d6bff1c2dab1 395 SetPortPower(device,i+1);
networker 0:d6bff1c2dab1 396
networker 0:d6bff1c2dab1 397 // Enable hub change interrupts
networker 0:d6bff1c2dab1 398 return USBInterruptTransfer(device,0x81,&dev->HubInterruptData,1,HubInterruptCallback,this);
networker 0:d6bff1c2dab1 399 }
networker 0:d6bff1c2dab1 400
networker 0:d6bff1c2dab1 401 int AddEndpoint(int device, int ep, int attributes, int maxPacketSize, int interval)
networker 0:d6bff1c2dab1 402 {
networker 0:d6bff1c2dab1 403 LOG("AddEndpoint D:%02X A:%02X T:%02X P:%04X I:%02X\n",device,ep,attributes,maxPacketSize,interval);
networker 0:d6bff1c2dab1 404 Device* dev = &Devices[device-1];
networker 0:d6bff1c2dab1 405 Endpoint* endpoint = AllocateEndpoint(device,ep,attributes,maxPacketSize);
networker 0:d6bff1c2dab1 406 if (!endpoint)
networker 0:d6bff1c2dab1 407 return ERR_ENDPOINT_NONE_LEFT;
networker 0:d6bff1c2dab1 408 dev->SetEndpointIndex(ep,endpoint - Endpoints);
networker 0:d6bff1c2dab1 409 endpoint->EndpointDescriptor.Control |= dev->Flags; // Map in slow speed
networker 0:d6bff1c2dab1 410 return 0; // TODO ed->bInterval
networker 0:d6bff1c2dab1 411 }
networker 0:d6bff1c2dab1 412
networker 0:d6bff1c2dab1 413 int AddEndpoint(int device, EndpointDescriptor* ed)
networker 0:d6bff1c2dab1 414 {
networker 0:d6bff1c2dab1 415 return AddEndpoint(device,ed->bEndpointAddress,ed->bmAttributes,ed->wMaxPacketSize,ed->bInterval);
networker 0:d6bff1c2dab1 416 }
networker 0:d6bff1c2dab1 417
networker 0:d6bff1c2dab1 418 // allocate a endpoint
networker 0:d6bff1c2dab1 419 Endpoint* AllocateEndpoint(int device, int endpointAddress, int type, int maxPacketSize)
networker 0:d6bff1c2dab1 420 {
networker 0:d6bff1c2dab1 421 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
networker 0:d6bff1c2dab1 422 {
networker 0:d6bff1c2dab1 423 Endpoint* ep = &Endpoints[i];
networker 0:d6bff1c2dab1 424 if (ep->CurrentState == 0)
networker 0:d6bff1c2dab1 425 {
networker 0:d6bff1c2dab1 426 //LOG("Allocated endpoint %d to %02X:%02X\n",i,device,endpointAddress);
networker 0:d6bff1c2dab1 427 ep->Flags = (endpointAddress & 0x80) | (type & 3);
networker 0:d6bff1c2dab1 428 ep->CurrentState = Endpoint::NotQueued;
networker 0:d6bff1c2dab1 429 ep->EndpointDescriptor.Control = (maxPacketSize << 16) | ((endpointAddress & 0x7F) << 7) | device;
networker 0:d6bff1c2dab1 430 return ep;
networker 0:d6bff1c2dab1 431 }
networker 0:d6bff1c2dab1 432 }
networker 0:d6bff1c2dab1 433 return 0;
networker 0:d6bff1c2dab1 434 }
networker 0:d6bff1c2dab1 435
networker 0:d6bff1c2dab1 436 Endpoint* GetEndpoint(int device, int ep)
networker 0:d6bff1c2dab1 437 {
networker 0:d6bff1c2dab1 438 if (device == 0)
networker 0:d6bff1c2dab1 439 {
networker 0:d6bff1c2dab1 440 //printf("WARNING: USING DEVICE 0\n");
networker 0:d6bff1c2dab1 441 return &EndpointZero;
networker 0:d6bff1c2dab1 442 }
networker 0:d6bff1c2dab1 443 if (device > MAX_DEVICES)
networker 0:d6bff1c2dab1 444 return 0;
networker 0:d6bff1c2dab1 445 int i = Devices[device-1].GetEndpointIndex(ep);
networker 0:d6bff1c2dab1 446 if (i == -1)
networker 0:d6bff1c2dab1 447 return 0;
networker 0:d6bff1c2dab1 448 return Endpoints + i;
networker 0:d6bff1c2dab1 449 }
networker 0:d6bff1c2dab1 450
networker 0:d6bff1c2dab1 451 int Transfer(Endpoint* endpoint, int token, u8* data, int len, int state)
networker 0:d6bff1c2dab1 452 {
networker 0:d6bff1c2dab1 453 //LOG("Transfer %02X T:%d Len:%d S:%d\n",endpoint->Address(),token,len,state);
networker 0:d6bff1c2dab1 454
networker 0:d6bff1c2dab1 455 int toggle = 0;
networker 0:d6bff1c2dab1 456 if (endpoint->Address() == 0)
networker 0:d6bff1c2dab1 457 toggle = (token == TOKEN_SETUP) ? TD_TOGGLE_0 : TD_TOGGLE_1;
networker 0:d6bff1c2dab1 458
networker 0:d6bff1c2dab1 459 if (token != TOKEN_SETUP)
networker 0:d6bff1c2dab1 460 token = (token == TOKEN_IN ? TD_IN : TD_OUT);
networker 0:d6bff1c2dab1 461
networker 0:d6bff1c2dab1 462 HCTD* head = &endpoint->TDHead;
networker 0:d6bff1c2dab1 463 HCTD* tail = &_commonTail;
networker 0:d6bff1c2dab1 464
networker 0:d6bff1c2dab1 465 head->Control = TD_ROUNDING | token | TD_DELAY_INT(0) | toggle | TD_CC;
networker 0:d6bff1c2dab1 466 head->CurrBufPtr = (u32)data;
networker 0:d6bff1c2dab1 467 head->BufEnd = (u32)(data + len - 1);
networker 0:d6bff1c2dab1 468 head->Next = (u32)tail;
networker 0:d6bff1c2dab1 469
networker 0:d6bff1c2dab1 470 HCED* ed = &endpoint->EndpointDescriptor;
networker 0:d6bff1c2dab1 471 ed->HeadTd = (u32)head | (ed->HeadTd & 0x00000002); // carry toggle
networker 0:d6bff1c2dab1 472 ed->TailTd = (u32)tail;
networker 0:d6bff1c2dab1 473
networker 0:d6bff1c2dab1 474 //HCTD* td = head;
networker 0:d6bff1c2dab1 475 //LOG("%04X TD %08X %08X %08X Next:%08X\n",CommunicationArea.FrameNumber,td->Control,td->CurrBufPtr,td->BufEnd,td->Next);
networker 0:d6bff1c2dab1 476 //LOG("%04X ED %08X %08X %08X\n",CommunicationArea.FrameNumber,ed->Control,ed->HeadTd,ed->TailTd);
networker 0:d6bff1c2dab1 477
networker 0:d6bff1c2dab1 478 switch (endpoint->Flags & 3)
networker 0:d6bff1c2dab1 479 {
networker 0:d6bff1c2dab1 480 case ENDPOINT_CONTROL:
networker 0:d6bff1c2dab1 481 LPC_USB->HcControlHeadED = endpoint->Enqueue(LPC_USB->HcControlHeadED); // May change state NotQueued->Idle
networker 0:d6bff1c2dab1 482 endpoint->CurrentState = state; // Get in before an int
networker 0:d6bff1c2dab1 483 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | ControlListFilled;
networker 0:d6bff1c2dab1 484 LPC_USB->HcControl = LPC_USB->HcControl | ControlListEnable;
networker 0:d6bff1c2dab1 485 break;
networker 0:d6bff1c2dab1 486
networker 0:d6bff1c2dab1 487 case ENDPOINT_BULK:
networker 0:d6bff1c2dab1 488 LPC_USB->HcBulkHeadED = endpoint->Enqueue(LPC_USB->HcBulkHeadED);
networker 0:d6bff1c2dab1 489 endpoint->CurrentState = state;
networker 0:d6bff1c2dab1 490 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | BulkListFilled;
networker 0:d6bff1c2dab1 491 LPC_USB->HcControl = LPC_USB->HcControl | BulkListEnable;
networker 0:d6bff1c2dab1 492 break;
networker 0:d6bff1c2dab1 493
networker 0:d6bff1c2dab1 494 case ENDPOINT_INTERRUPT:
networker 0:d6bff1c2dab1 495 CommunicationArea.InterruptTable[0] = endpoint->Enqueue(CommunicationArea.InterruptTable[0]);
networker 0:d6bff1c2dab1 496 endpoint->CurrentState = state;
networker 0:d6bff1c2dab1 497 LPC_USB->HcControl |= PeriodicListEnable;
networker 0:d6bff1c2dab1 498 break;
networker 0:d6bff1c2dab1 499 }
networker 0:d6bff1c2dab1 500 return 0;
networker 0:d6bff1c2dab1 501 }
networker 0:d6bff1c2dab1 502
networker 0:d6bff1c2dab1 503 // Remove an endpoint from an active queue
networker 0:d6bff1c2dab1 504 bool Remove(HCED* ed, volatile HCED** queue)
networker 0:d6bff1c2dab1 505 {
networker 0:d6bff1c2dab1 506 if (*queue == 0)
networker 0:d6bff1c2dab1 507 return false;
networker 0:d6bff1c2dab1 508 if (*queue == (volatile HCED*)ed)
networker 0:d6bff1c2dab1 509 {
networker 0:d6bff1c2dab1 510 *queue = (volatile HCED*)ed->Next; // At head of queue
networker 0:d6bff1c2dab1 511 return true;
networker 0:d6bff1c2dab1 512 }
networker 0:d6bff1c2dab1 513
networker 0:d6bff1c2dab1 514 volatile HCED* head = *queue;
networker 0:d6bff1c2dab1 515 while (head)
networker 0:d6bff1c2dab1 516 {
networker 0:d6bff1c2dab1 517 if (head->Next == (u32)ed)
networker 0:d6bff1c2dab1 518 {
networker 0:d6bff1c2dab1 519 head->Next = ed->Next;
networker 0:d6bff1c2dab1 520 return true;
networker 0:d6bff1c2dab1 521 }
networker 0:d6bff1c2dab1 522 head = (volatile HCED*)head->Next;
networker 0:d6bff1c2dab1 523 }
networker 0:d6bff1c2dab1 524 return false;
networker 0:d6bff1c2dab1 525 }
networker 0:d6bff1c2dab1 526
networker 0:d6bff1c2dab1 527 void Release(Endpoint* endpoint)
networker 0:d6bff1c2dab1 528 {
networker 0:d6bff1c2dab1 529 if (endpoint->CurrentState == Endpoint::NotQueued)
networker 0:d6bff1c2dab1 530 {
networker 0:d6bff1c2dab1 531 // Never event used it, nothing to do
networker 0:d6bff1c2dab1 532 }
networker 0:d6bff1c2dab1 533 else
networker 0:d6bff1c2dab1 534 {
networker 0:d6bff1c2dab1 535 HCED* ed = (HCED*)endpoint;
networker 0:d6bff1c2dab1 536 ed->Control |= 0x4000; // SKIP
networker 0:d6bff1c2dab1 537 switch (endpoint->Flags & 0x03)
networker 0:d6bff1c2dab1 538 {
networker 0:d6bff1c2dab1 539 case ENDPOINT_CONTROL:
networker 0:d6bff1c2dab1 540 Remove(ed,(volatile HCED**)&LPC_USB->HcControlHeadED);
networker 0:d6bff1c2dab1 541 break;
networker 0:d6bff1c2dab1 542 case ENDPOINT_BULK:
networker 0:d6bff1c2dab1 543 Remove(ed,(volatile HCED**)&LPC_USB->HcBulkHeadED);
networker 0:d6bff1c2dab1 544 break;
networker 0:d6bff1c2dab1 545 case ENDPOINT_INTERRUPT:
networker 0:d6bff1c2dab1 546 for (int i = 0; i < 32; i++)
networker 0:d6bff1c2dab1 547 Remove(ed,(volatile HCED**)&CommunicationArea.InterruptTable[i]);
networker 0:d6bff1c2dab1 548 break;
networker 0:d6bff1c2dab1 549 }
networker 0:d6bff1c2dab1 550
networker 0:d6bff1c2dab1 551 u16 fn = CommunicationArea.FrameNumber;
networker 0:d6bff1c2dab1 552 while (fn == CommunicationArea.FrameNumber)
networker 0:d6bff1c2dab1 553 ; // Wait for next frame
networker 0:d6bff1c2dab1 554
networker 0:d6bff1c2dab1 555 }
networker 0:d6bff1c2dab1 556
networker 0:d6bff1c2dab1 557 // In theory, the endpoint is now dead.
networker 0:d6bff1c2dab1 558 // TODO: Will Callbacks ever be pending? BUGBUG
networker 0:d6bff1c2dab1 559 memset(endpoint,0,sizeof(Endpoint));
networker 0:d6bff1c2dab1 560 }
networker 0:d6bff1c2dab1 561
networker 0:d6bff1c2dab1 562 // Pop the last TD from the list
networker 0:d6bff1c2dab1 563 HCTD* Reverse(HCTD* current)
networker 1:05d0fe737d3b 564 { //int n = 0;
networker 0:d6bff1c2dab1 565 HCTD *result = NULL,*temp;
networker 0:d6bff1c2dab1 566 while (current)
networker 1:05d0fe737d3b 567 { //n++;
networker 0:d6bff1c2dab1 568 temp = (HCTD*)current->Next;
networker 0:d6bff1c2dab1 569 current->Next = (u32)result;
networker 0:d6bff1c2dab1 570 result = current;
networker 0:d6bff1c2dab1 571 current = temp;
networker 0:d6bff1c2dab1 572 }
networker 1:05d0fe737d3b 573 //if (n>1) printf("%d TD's on Done Queue\n", n);
networker 0:d6bff1c2dab1 574 return result;
networker 0:d6bff1c2dab1 575 }
networker 0:d6bff1c2dab1 576
networker 0:d6bff1c2dab1 577 // Called from interrupt...
networker 0:d6bff1c2dab1 578 // Control endpoints use a state machine to progress through the transfers
networker 0:d6bff1c2dab1 579 void ProcessDoneQueue(u32 tdList)
networker 0:d6bff1c2dab1 580 {
networker 1:05d0fe737d3b 581 HCTD* list = Reverse((HCTD*)tdList);//because completed transfers were added to the head of the list
networker 0:d6bff1c2dab1 582 while (list)
networker 1:05d0fe737d3b 583 {//horrible hack: an Endpoint starts with an HCED and an HCTD and apparently all HCTDs are contained in Endpoints this way
networker 1:05d0fe737d3b 584 //furthermore the sizeof an HCTD equeals the size of an HCED, hence the next expression gives indeed the Endpoint* for the HCTD
networker 0:d6bff1c2dab1 585 Endpoint* endpoint = (Endpoint*)(list-1);
networker 0:d6bff1c2dab1 586 list = (HCTD*)list->Next;
networker 0:d6bff1c2dab1 587 int ep = endpoint->Address();
networker 0:d6bff1c2dab1 588 bool in = endpoint->Flags & 0x80;
networker 0:d6bff1c2dab1 589 int status = (endpoint->TDHead.Control >> 28) & 0xF;
networker 1:05d0fe737d3b 590 //the printf below is essential for correct working !?!? remove it and some messages will be missed
networker 0:d6bff1c2dab1 591 //LOG("ProcessDoneQueue %02X %08X\n",ep,endpoint->TDHead.Control);
networker 1:05d0fe737d3b 592 wait_us(0);//200, 100, 50, 20, 10, 5, 2, 1,0 works, deleting the statement does not work
networker 1:05d0fe737d3b 593 //I suspect it has to do with interrupt priorities rather than with delays
networker 0:d6bff1c2dab1 594 if (status != 0)
networker 0:d6bff1c2dab1 595 {
networker 0:d6bff1c2dab1 596 LOG("ProcessDoneQueue status %02X %d\n",ep,status);
networker 0:d6bff1c2dab1 597 endpoint->CurrentState = Endpoint::Idle;
networker 0:d6bff1c2dab1 598 } else {
networker 0:d6bff1c2dab1 599 switch (endpoint->CurrentState)
networker 0:d6bff1c2dab1 600 {
networker 0:d6bff1c2dab1 601 case Endpoint::SetupQueued:
networker 1:05d0fe737d3b 602 if (endpoint->Length == 0){
networker 0:d6bff1c2dab1 603 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Skip Data Phase
networker 1:05d0fe737d3b 604 } else {//here is a potential deadlock
networker 1:05d0fe737d3b 605 //printf("Deadlock Avoidance, ep=%02x, in=%d\n", ep, in);//with printf before transfer -> no deadlock
networker 0:d6bff1c2dab1 606 Transfer(endpoint,in ? TOKEN_IN : TOKEN_OUT,endpoint->Data,endpoint->Length, Endpoint::DataQueued); // Setup is done, now Data
networker 1:05d0fe737d3b 607 //printf("SetupQueued->DataQueued\n");//with printf after Transfer ->deadlock
networker 1:05d0fe737d3b 608 }
networker 0:d6bff1c2dab1 609 break;
networker 0:d6bff1c2dab1 610
networker 0:d6bff1c2dab1 611 case Endpoint::DataQueued:
networker 0:d6bff1c2dab1 612 if (endpoint->TDHead.CurrBufPtr)
networker 0:d6bff1c2dab1 613 endpoint->Length = endpoint->TDHead.CurrBufPtr - (u32)endpoint->Data;
networker 0:d6bff1c2dab1 614
networker 1:05d0fe737d3b 615 if (ep == 0){
networker 0:d6bff1c2dab1 616 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Data is done, now Status, Control only
networker 1:05d0fe737d3b 617 } else
networker 0:d6bff1c2dab1 618 endpoint->CurrentState = Endpoint::Idle;
networker 0:d6bff1c2dab1 619 break;
networker 0:d6bff1c2dab1 620
networker 0:d6bff1c2dab1 621 case Endpoint::StatusQueued: // Transaction is done
networker 0:d6bff1c2dab1 622 endpoint->CurrentState = Endpoint::Idle;
networker 0:d6bff1c2dab1 623 break;
networker 0:d6bff1c2dab1 624 }
networker 0:d6bff1c2dab1 625 }
networker 0:d6bff1c2dab1 626
networker 0:d6bff1c2dab1 627 // Complete, flag if we need a callback
networker 0:d6bff1c2dab1 628 if (endpoint->Callback && endpoint->CurrentState == Endpoint::Idle)
networker 0:d6bff1c2dab1 629 {
networker 0:d6bff1c2dab1 630 endpoint->CurrentState = Endpoint::CallbackPending;
networker 0:d6bff1c2dab1 631 _callbacksPending++;
networker 0:d6bff1c2dab1 632 }
networker 0:d6bff1c2dab1 633 }
networker 0:d6bff1c2dab1 634 }
networker 0:d6bff1c2dab1 635
networker 0:d6bff1c2dab1 636 // Hack to reset devices that don't want to connect
networker 0:d6bff1c2dab1 637 int AddDevice(int hub, int port, bool isLowSpeed)
networker 0:d6bff1c2dab1 638 {
networker 0:d6bff1c2dab1 639 int device = AddDeviceCore(hub,port,isLowSpeed);
networker 0:d6bff1c2dab1 640 if (device < 0)
networker 0:d6bff1c2dab1 641 {
networker 0:d6bff1c2dab1 642 LOG("========RETRY ADD DEVICE========\n"); // This will go for ever.. TODO power cycle root?
networker 0:d6bff1c2dab1 643 Disconnect(hub,port); // Could not read descriptor at assigned address, reset this port and try again
networker 0:d6bff1c2dab1 644 ResetPort(hub,port); // Cheap bluetooth dongles often need this on a hotplug
networker 0:d6bff1c2dab1 645 return -1;
networker 0:d6bff1c2dab1 646 }
networker 0:d6bff1c2dab1 647 return device;
networker 0:d6bff1c2dab1 648 }
networker 0:d6bff1c2dab1 649
networker 0:d6bff1c2dab1 650 int AddDeviceCore(int hub, int port, bool isLowSpeed)
networker 0:d6bff1c2dab1 651 {
networker 0:d6bff1c2dab1 652 int lowSpeed = isLowSpeed ? 0x2000 : 0;
networker 0:d6bff1c2dab1 653 DeviceDescriptor desc;
networker 0:d6bff1c2dab1 654 EndpointZero.EndpointDescriptor.Control = (8 << 16) | lowSpeed; // MaxPacketSize == 8
networker 0:d6bff1c2dab1 655 int r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,8);
networker 0:d6bff1c2dab1 656 if (r < 0)
networker 0:d6bff1c2dab1 657 {
networker 0:d6bff1c2dab1 658 LOG("FAILED TO LOAD DESCRIPTOR FOR DEVICE 0\n");
networker 0:d6bff1c2dab1 659 return r;
networker 0:d6bff1c2dab1 660 }
networker 0:d6bff1c2dab1 661
networker 0:d6bff1c2dab1 662 EndpointZero.EndpointDescriptor.Control = (desc.bMaxPacketSize << 16) | lowSpeed; // Actual MaxPacketSize
networker 0:d6bff1c2dab1 663 r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
networker 0:d6bff1c2dab1 664 if (r < 0)
networker 0:d6bff1c2dab1 665 return r;
networker 0:d6bff1c2dab1 666
networker 0:d6bff1c2dab1 667 LOG("\nClass %02X found %04X:%04X\n\n",desc.bDeviceClass,desc.idVendor,desc.idProduct);
networker 0:d6bff1c2dab1 668
networker 0:d6bff1c2dab1 669 // Now assign the device an address, move off EndpointZero
networker 0:d6bff1c2dab1 670 int device = 0;
networker 0:d6bff1c2dab1 671 for (int i = 0; i < MAX_DEVICES; i++)
networker 0:d6bff1c2dab1 672 {
networker 0:d6bff1c2dab1 673 if (Devices[i].Port == 0)
networker 0:d6bff1c2dab1 674 {
networker 0:d6bff1c2dab1 675 device = i+1;
networker 0:d6bff1c2dab1 676 break;
networker 0:d6bff1c2dab1 677 }
networker 0:d6bff1c2dab1 678 }
networker 0:d6bff1c2dab1 679 if (!device)
networker 0:d6bff1c2dab1 680 return ERR_DEVICE_NONE_LEFT;
networker 0:d6bff1c2dab1 681
networker 0:d6bff1c2dab1 682 r = SetAddress(0,device);
networker 0:d6bff1c2dab1 683 if (r)
networker 0:d6bff1c2dab1 684 return r;
networker 0:d6bff1c2dab1 685 DelayMS(2);
networker 0:d6bff1c2dab1 686
networker 0:d6bff1c2dab1 687 // Now at a nonzero address, create control endpoint
networker 0:d6bff1c2dab1 688 Device* dev = &Devices[device-1];
networker 0:d6bff1c2dab1 689 dev->Init(&desc,hub,port,device,lowSpeed);
networker 0:d6bff1c2dab1 690 AddEndpoint(device,0,ENDPOINT_CONTROL,desc.bMaxPacketSize,0);
networker 0:d6bff1c2dab1 691 _connectPending = 0;
networker 0:d6bff1c2dab1 692
networker 0:d6bff1c2dab1 693 // Verify this all works
networker 0:d6bff1c2dab1 694 r = GetDescriptor(device,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
networker 0:d6bff1c2dab1 695 if (r < 0)
networker 0:d6bff1c2dab1 696 return r;
networker 0:d6bff1c2dab1 697
networker 0:d6bff1c2dab1 698 // Set to interface 0 by default
networker 0:d6bff1c2dab1 699 // Calls LoadDevice if interface is found
networker 0:d6bff1c2dab1 700 r = SetConfigurationAndInterface(device,1,0,&desc);
networker 0:d6bff1c2dab1 701
networker 0:d6bff1c2dab1 702 if (desc.bDeviceClass == CLASS_HUB)
networker 0:d6bff1c2dab1 703 InitHub(device); // Handle hubs in this code
networker 0:d6bff1c2dab1 704
networker 0:d6bff1c2dab1 705 return device;
networker 0:d6bff1c2dab1 706 }
networker 0:d6bff1c2dab1 707
networker 0:d6bff1c2dab1 708 // Walk descriptors and create endpoints for a given device
networker 0:d6bff1c2dab1 709 // TODO configuration !=1, alternate settings etc.
networker 0:d6bff1c2dab1 710 int SetConfigurationAndInterface(int device, int configuration, int interfaceNumber, DeviceDescriptor* desc)
networker 0:d6bff1c2dab1 711 {
networker 0:d6bff1c2dab1 712 u8 buffer[255];
networker 0:d6bff1c2dab1 713 int err = GetDescriptor(device,DESCRIPTOR_TYPE_CONFIGURATION,0,buffer,sizeof(buffer));
networker 0:d6bff1c2dab1 714 if (err < 0)
networker 0:d6bff1c2dab1 715 return err;
networker 0:d6bff1c2dab1 716
networker 0:d6bff1c2dab1 717 err = SetConfiguration(device,configuration);
networker 0:d6bff1c2dab1 718 if (err < 0)
networker 0:d6bff1c2dab1 719 return err;
networker 0:d6bff1c2dab1 720
networker 0:d6bff1c2dab1 721 // Add the endpoints for this interface
networker 0:d6bff1c2dab1 722 int len = buffer[2] | (buffer[3] << 8);
networker 0:d6bff1c2dab1 723 u8* d = buffer;
networker 0:d6bff1c2dab1 724 u8* end = d + len;
networker 0:d6bff1c2dab1 725 InterfaceDescriptor* found = 0;
networker 0:d6bff1c2dab1 726 while (d < end)
networker 0:d6bff1c2dab1 727 {
networker 0:d6bff1c2dab1 728 if (d[1] == DESCRIPTOR_TYPE_INTERFACE)
networker 0:d6bff1c2dab1 729 {
networker 0:d6bff1c2dab1 730 InterfaceDescriptor* id = (InterfaceDescriptor*)d;
networker 0:d6bff1c2dab1 731 if (id->bInterfaceNumber == interfaceNumber)
networker 0:d6bff1c2dab1 732 {
networker 0:d6bff1c2dab1 733 found = id;
networker 0:d6bff1c2dab1 734 d += d[0];
networker 0:d6bff1c2dab1 735 while (d < end && d[1] != DESCRIPTOR_TYPE_INTERFACE)
networker 0:d6bff1c2dab1 736 {
networker 0:d6bff1c2dab1 737 switch (d[1])
networker 0:d6bff1c2dab1 738 {
networker 0:d6bff1c2dab1 739 case DESCRIPTOR_TYPE_ENDPOINT:
networker 0:d6bff1c2dab1 740 AddEndpoint(device,(EndpointDescriptor*)d);
networker 0:d6bff1c2dab1 741 break;
networker 0:d6bff1c2dab1 742 default:
networker 0:d6bff1c2dab1 743 LOG("Skipping descriptor %02X (%d bytes)\n",d[1],d[0]);
networker 0:d6bff1c2dab1 744 }
networker 0:d6bff1c2dab1 745 d += d[0];
networker 0:d6bff1c2dab1 746 }
networker 0:d6bff1c2dab1 747 }
networker 0:d6bff1c2dab1 748 }
networker 0:d6bff1c2dab1 749 d += d[0];
networker 0:d6bff1c2dab1 750 }
networker 0:d6bff1c2dab1 751
networker 0:d6bff1c2dab1 752 if (!found)
networker 0:d6bff1c2dab1 753 return ERR_INTERFACE_NOT_FOUND;
networker 0:d6bff1c2dab1 754 OnLoadDevice(device,desc,found);
networker 0:d6bff1c2dab1 755 return 0;
networker 0:d6bff1c2dab1 756 }
networker 0:d6bff1c2dab1 757
networker 0:d6bff1c2dab1 758 void Init()
networker 0:d6bff1c2dab1 759 {
networker 0:d6bff1c2dab1 760 LOG("USB INIT (Controller is %d bytes)\n",sizeof(*this));
networker 0:d6bff1c2dab1 761 memset(this,0,sizeof(HostController));
networker 0:d6bff1c2dab1 762 EndpointZero.CurrentState = Endpoint::NotQueued;
networker 0:d6bff1c2dab1 763 HWInit(&CommunicationArea);
networker 0:d6bff1c2dab1 764 DelayMS(10);
networker 0:d6bff1c2dab1 765 }
networker 0:d6bff1c2dab1 766
networker 0:d6bff1c2dab1 767 void ResetPort(int hub, int port)
networker 0:d6bff1c2dab1 768 {
networker 0:d6bff1c2dab1 769 LOG("ResetPort Hub:%d Port:%d\n",hub,port);
networker 0:d6bff1c2dab1 770 _connectPending++; // Only reset/add 1 device at a time
networker 0:d6bff1c2dab1 771 if (hub == 0)
networker 0:d6bff1c2dab1 772 LPC_USB->HcRhPortStatus1 = PortResetStatus; // Reset Root Hub, port 1
networker 0:d6bff1c2dab1 773 else
networker 0:d6bff1c2dab1 774 SetPortReset(hub,port); // or reset other hub
networker 0:d6bff1c2dab1 775 }
networker 0:d6bff1c2dab1 776
networker 0:d6bff1c2dab1 777 void Disconnect(int hub, int port)
networker 0:d6bff1c2dab1 778 {
networker 0:d6bff1c2dab1 779 LOG("Disconnect Hub:%d Port:%d\n",hub,port); // Mark a device for destruction
networker 0:d6bff1c2dab1 780 for (int i = 0; i < MAX_DEVICES; i++)
networker 0:d6bff1c2dab1 781 {
networker 0:d6bff1c2dab1 782 Device* dev = Devices + i;
networker 0:d6bff1c2dab1 783 if (dev->Port == port && dev->Hub == hub)
networker 0:d6bff1c2dab1 784 {
networker 0:d6bff1c2dab1 785 // Disconnect everything that is attached to this device if it is a hub
networker 0:d6bff1c2dab1 786 for (int p = 0; p < dev->HubPortCount; p++)
networker 0:d6bff1c2dab1 787 Disconnect(i+1,p+1);
networker 0:d6bff1c2dab1 788
networker 0:d6bff1c2dab1 789 // Now release endpoints
networker 0:d6bff1c2dab1 790 for (int j = 1; j < MAX_ENDPOINTS_PER_DEVICE*2; j += 2)
networker 0:d6bff1c2dab1 791 {
networker 0:d6bff1c2dab1 792 u8 endpointIndex = dev->_endpointMap[j];
networker 0:d6bff1c2dab1 793 if (endpointIndex != 0xFF)
networker 0:d6bff1c2dab1 794 Release(Endpoints + endpointIndex);
networker 0:d6bff1c2dab1 795 }
networker 0:d6bff1c2dab1 796 dev->Port = 0; // Device is now free
networker 0:d6bff1c2dab1 797 dev->Flags = 0;
networker 0:d6bff1c2dab1 798 return;
networker 0:d6bff1c2dab1 799 }
networker 0:d6bff1c2dab1 800 }
networker 0:d6bff1c2dab1 801 }
networker 0:d6bff1c2dab1 802
networker 0:d6bff1c2dab1 803 // called after reset
networker 0:d6bff1c2dab1 804 void Connect(int hub, int port, bool lowspeed)
networker 0:d6bff1c2dab1 805 {
networker 0:d6bff1c2dab1 806 LOG("Connect Hub:%d Port:%d %s\n",hub,port,lowspeed ? "slow" : "full");
networker 0:d6bff1c2dab1 807 AddDevice(hub,port,lowspeed);
networker 0:d6bff1c2dab1 808 }
networker 0:d6bff1c2dab1 809
networker 0:d6bff1c2dab1 810 // Called from interrupt
networker 0:d6bff1c2dab1 811 void HubStatusChange(int hub, int port, u32 status)
networker 0:d6bff1c2dab1 812 {
networker 0:d6bff1c2dab1 813 LOG("HubStatusChange Hub:%d Port:%d %08X\n",hub,port,status);
networker 0:d6bff1c2dab1 814 if (status & ConnectStatusChange)
networker 0:d6bff1c2dab1 815 {
networker 0:d6bff1c2dab1 816 if (status & CurrentConnectStatus) // Connecting
networker 0:d6bff1c2dab1 817 ResetPort(hub,port); // Reset to initiate connect (state machine?)
networker 0:d6bff1c2dab1 818 else
networker 0:d6bff1c2dab1 819 Disconnect(hub,port);
networker 0:d6bff1c2dab1 820 }
networker 0:d6bff1c2dab1 821
networker 0:d6bff1c2dab1 822 if (status & PortResetStatusChange)
networker 0:d6bff1c2dab1 823 {
networker 0:d6bff1c2dab1 824 if (!(status & PortResetStatus))
networker 0:d6bff1c2dab1 825 {
networker 0:d6bff1c2dab1 826 _connectCountdown = 200; // Schedule a connection in 200ms
networker 0:d6bff1c2dab1 827 if (status & LowspeedDevice)
networker 0:d6bff1c2dab1 828 port |= 0x80;
networker 0:d6bff1c2dab1 829 _connectHub = hub;
networker 0:d6bff1c2dab1 830 _connectPort = port;
networker 0:d6bff1c2dab1 831 }
networker 0:d6bff1c2dab1 832 }
networker 0:d6bff1c2dab1 833 }
networker 0:d6bff1c2dab1 834
networker 0:d6bff1c2dab1 835 #define HOST_CLK_EN (1<<0)
networker 0:d6bff1c2dab1 836 #define PORTSEL_CLK_EN (1<<3)
networker 0:d6bff1c2dab1 837 #define AHB_CLK_EN (1<<4)
networker 0:d6bff1c2dab1 838 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
networker 0:d6bff1c2dab1 839
networker 0:d6bff1c2dab1 840 #define FRAMEINTERVAL (12000-1) // 1ms
networker 0:d6bff1c2dab1 841 #define DEFAULT_FMINTERVAL ((((6 * (FRAMEINTERVAL - 210)) / 7) << 16) | FRAMEINTERVAL)
networker 0:d6bff1c2dab1 842
networker 0:d6bff1c2dab1 843 void DelayMS(int ms)
networker 0:d6bff1c2dab1 844 {
networker 0:d6bff1c2dab1 845 u16 f = ms + CommunicationArea.FrameNumber;
networker 0:d6bff1c2dab1 846 while (f != CommunicationArea.FrameNumber)
networker 0:d6bff1c2dab1 847 ;
networker 0:d6bff1c2dab1 848 }
networker 0:d6bff1c2dab1 849
networker 0:d6bff1c2dab1 850 static void HWInit(HCCA* cca)
networker 0:d6bff1c2dab1 851 {
networker 0:d6bff1c2dab1 852 NVIC_DisableIRQ(USB_IRQn);
networker 0:d6bff1c2dab1 853
networker 0:d6bff1c2dab1 854 // turn on power for USB
networker 0:d6bff1c2dab1 855 LPC_SC->PCONP |= (1UL<<31);
networker 0:d6bff1c2dab1 856 // Enable USB host clock, port selection and AHB clock
networker 0:d6bff1c2dab1 857 LPC_USB->USBClkCtrl |= CLOCK_MASK;
networker 0:d6bff1c2dab1 858 // Wait for clocks to become available
networker 0:d6bff1c2dab1 859 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
networker 0:d6bff1c2dab1 860 ;
networker 0:d6bff1c2dab1 861
networker 0:d6bff1c2dab1 862 // We are a Host
networker 0:d6bff1c2dab1 863 LPC_USB->OTGStCtrl |= 1;
networker 0:d6bff1c2dab1 864 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN; // we don't need port selection clock until we do OTG
networker 0:d6bff1c2dab1 865
networker 0:d6bff1c2dab1 866 // configure USB pins
networker 0:d6bff1c2dab1 867 LPC_PINCON->PINSEL1 &= ~((3<<26)|(3<<28));
networker 0:d6bff1c2dab1 868 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // USB D+/D-
networker 0:d6bff1c2dab1 869
networker 0:d6bff1c2dab1 870 LPC_PINCON->PINSEL3 &= ~((3 << 6) | (3 << 22)); // USB_PPWR, USB_OVRCR
networker 0:d6bff1c2dab1 871 LPC_PINCON->PINSEL3 |= ((2 << 6) | (2 << 22));
networker 0:d6bff1c2dab1 872
networker 0:d6bff1c2dab1 873 LPC_PINCON->PINSEL4 &= ~(3 << 18); // USB_CONNECT
networker 0:d6bff1c2dab1 874 LPC_PINCON->PINSEL4 |= (1 << 18);
networker 0:d6bff1c2dab1 875
networker 0:d6bff1c2dab1 876 // Reset OHCI block
networker 0:d6bff1c2dab1 877 LPC_USB->HcControl = 0;
networker 0:d6bff1c2dab1 878 LPC_USB->HcControlHeadED = 0;
networker 0:d6bff1c2dab1 879 LPC_USB->HcBulkHeadED = 0;
networker 0:d6bff1c2dab1 880
networker 0:d6bff1c2dab1 881 LPC_USB->HcCommandStatus = HostControllerReset;
networker 0:d6bff1c2dab1 882 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL;
networker 0:d6bff1c2dab1 883 LPC_USB->HcPeriodicStart = FRAMEINTERVAL*90/100;
networker 0:d6bff1c2dab1 884
networker 0:d6bff1c2dab1 885 LPC_USB->HcControl = (LPC_USB->HcControl & (~HostControllerFunctionalState)) | OperationalMask;
networker 0:d6bff1c2dab1 886 LPC_USB->HcRhStatus = SetGlobalPower;
networker 0:d6bff1c2dab1 887
networker 0:d6bff1c2dab1 888 LPC_USB->HcHCCA = (u32)cca;
networker 0:d6bff1c2dab1 889 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus;
networker 0:d6bff1c2dab1 890 LPC_USB->HcInterruptEnable = MasterInterruptEnable | WritebackDoneHead | RootHubStatusChange | FrameNumberOverflow;
networker 0:d6bff1c2dab1 891
networker 0:d6bff1c2dab1 892 NVIC_SetPriority(USB_IRQn, 0);
networker 0:d6bff1c2dab1 893 NVIC_EnableIRQ(USB_IRQn);
networker 0:d6bff1c2dab1 894 while (cca->FrameNumber < 10)
networker 0:d6bff1c2dab1 895 ; // 10ms delay before diving in
networker 0:d6bff1c2dab1 896 }
networker 0:d6bff1c2dab1 897 };
networker 0:d6bff1c2dab1 898
networker 0:d6bff1c2dab1 899 //====================================================================================
networker 0:d6bff1c2dab1 900 //====================================================================================
networker 0:d6bff1c2dab1 901 // Host controller instance and Interrupt handler
networker 0:d6bff1c2dab1 902
networker 0:d6bff1c2dab1 903 static HostController _controller __attribute__((at(USB_RAM_BASE)));
networker 0:d6bff1c2dab1 904
networker 0:d6bff1c2dab1 905 extern "C" void USB_IRQHandler(void) __irq;
networker 0:d6bff1c2dab1 906 void USB_IRQHandler (void) __irq
networker 0:d6bff1c2dab1 907 {
networker 0:d6bff1c2dab1 908 u32 int_status = LPC_USB->HcInterruptStatus;
networker 0:d6bff1c2dab1 909
networker 0:d6bff1c2dab1 910 if (int_status & RootHubStatusChange) // Root hub status change
networker 0:d6bff1c2dab1 911 _controller._rootHubStatusChange++; // Just flag the controller, will be processed in USBLoop
networker 0:d6bff1c2dab1 912
networker 0:d6bff1c2dab1 913 u32 head = 0;
networker 0:d6bff1c2dab1 914 if (int_status & WritebackDoneHead)
networker 0:d6bff1c2dab1 915 {
networker 0:d6bff1c2dab1 916 head = _controller.CommunicationArea.DoneHead; // Writeback Done
networker 0:d6bff1c2dab1 917 _controller.CommunicationArea.DoneHead = 0;
networker 0:d6bff1c2dab1 918 }
networker 1:05d0fe737d3b 919 // LPC_USB->HcInterruptStatus = int_status;
networker 0:d6bff1c2dab1 920
networker 1:05d0fe737d3b 921 if (head){
networker 1:05d0fe737d3b 922 _controller.ProcessDoneQueue(head & ~1U); // TODO - low bit can be set BUGBUG
networker 1:05d0fe737d3b 923 if (head & 1) {
networker 1:05d0fe737d3b 924 int othercause = int_status ^ WritebackDoneHead;
networker 1:05d0fe737d3b 925 printf("HcInterruptStatus = %08X\n", int_status);
networker 1:05d0fe737d3b 926 }
networker 1:05d0fe737d3b 927 }
networker 1:05d0fe737d3b 928 else
networker 1:05d0fe737d3b 929 int othercause = int_status;
networker 1:05d0fe737d3b 930 LPC_USB->HcInterruptStatus = int_status;
networker 1:05d0fe737d3b 931 //See page 435 of OHCI Specification
networker 1:05d0fe737d3b 932 //if the LSb=1 int_status should be checked for other causes
networker 1:05d0fe737d3b 933 //if the head=0 there are no TDs on the DoneQueue and int_status should be checked to see what caused this interrupt
networker 0:d6bff1c2dab1 934 }
networker 0:d6bff1c2dab1 935
networker 0:d6bff1c2dab1 936 //====================================================================================
networker 0:d6bff1c2dab1 937 //====================================================================================
networker 0:d6bff1c2dab1 938 // API Methods
networker 0:d6bff1c2dab1 939
networker 0:d6bff1c2dab1 940 void USBInit()
networker 0:d6bff1c2dab1 941 {
networker 0:d6bff1c2dab1 942 return _controller.Init();
networker 0:d6bff1c2dab1 943 }
networker 0:d6bff1c2dab1 944
networker 0:d6bff1c2dab1 945 void USBLoop()
networker 0:d6bff1c2dab1 946 {
networker 0:d6bff1c2dab1 947 return _controller.Loop();
networker 0:d6bff1c2dab1 948 }
networker 0:d6bff1c2dab1 949
networker 0:d6bff1c2dab1 950 u8* USBGetBuffer(u32* len)
networker 0:d6bff1c2dab1 951 {
networker 0:d6bff1c2dab1 952 *len = USB_RAM_SIZE - sizeof(HostController);
networker 0:d6bff1c2dab1 953 return _controller.SRAM;
networker 0:d6bff1c2dab1 954 }
networker 0:d6bff1c2dab1 955
networker 0:d6bff1c2dab1 956 static Setup* GetSetup(int device)
networker 0:d6bff1c2dab1 957 {
networker 0:d6bff1c2dab1 958 if (device == 0)
networker 0:d6bff1c2dab1 959 return &_controller._setupZero;
networker 0:d6bff1c2dab1 960
networker 0:d6bff1c2dab1 961 if (device < 1 || device > MAX_DEVICES)
networker 0:d6bff1c2dab1 962 return 0;
networker 0:d6bff1c2dab1 963 return &_controller.Devices[device-1].SetupBuffer;
networker 0:d6bff1c2dab1 964 }
networker 0:d6bff1c2dab1 965
networker 0:d6bff1c2dab1 966 // Loop until IO on endpoint is complete
networker 0:d6bff1c2dab1 967 static int WaitIODone(Endpoint* endpoint)
networker 0:d6bff1c2dab1 968 {
networker 0:d6bff1c2dab1 969 if (endpoint->CurrentState == Endpoint::NotQueued)
networker 0:d6bff1c2dab1 970 return 0;
networker 0:d6bff1c2dab1 971 while (endpoint->CurrentState != Endpoint::Idle)
networker 0:d6bff1c2dab1 972 USBLoop(); // May generate callbacks, mount or unmount devices etc
networker 0:d6bff1c2dab1 973 int status = endpoint->Status();
networker 0:d6bff1c2dab1 974 if (status == 0)
networker 0:d6bff1c2dab1 975 return endpoint->Length;
networker 0:d6bff1c2dab1 976 return -status;
networker 0:d6bff1c2dab1 977 }
networker 0:d6bff1c2dab1 978
networker 0:d6bff1c2dab1 979 int USBTransfer(int device, int ep, u8 flags, u8* data, int length, USBCallback callback, void* userData)
networker 0:d6bff1c2dab1 980 {
networker 0:d6bff1c2dab1 981 Endpoint* endpoint = _controller.GetEndpoint(device,ep);
networker 0:d6bff1c2dab1 982 if (!endpoint)
networker 0:d6bff1c2dab1 983 return ERR_ENDPOINT_NOT_FOUND;
networker 0:d6bff1c2dab1 984
networker 0:d6bff1c2dab1 985 WaitIODone(endpoint);
networker 0:d6bff1c2dab1 986 endpoint->Flags = flags;
networker 0:d6bff1c2dab1 987 endpoint->Data = data;
networker 0:d6bff1c2dab1 988 endpoint->Length = length;
networker 0:d6bff1c2dab1 989 endpoint->Callback = callback;
networker 0:d6bff1c2dab1 990 endpoint->UserData = userData;
networker 0:d6bff1c2dab1 991 if (ep == 0)
networker 0:d6bff1c2dab1 992 _controller.Transfer(endpoint,TOKEN_SETUP,(u8*)GetSetup(device),8,Endpoint::SetupQueued);
networker 0:d6bff1c2dab1 993 else
networker 0:d6bff1c2dab1 994 _controller.Transfer(endpoint,flags & 0x80 ? TOKEN_IN : TOKEN_OUT,data,length,Endpoint::DataQueued);
networker 0:d6bff1c2dab1 995 if (callback)
networker 0:d6bff1c2dab1 996 return IO_PENDING;
networker 0:d6bff1c2dab1 997 return WaitIODone(endpoint);
networker 0:d6bff1c2dab1 998 }
networker 0:d6bff1c2dab1 999
networker 0:d6bff1c2dab1 1000 int USBControlTransfer(int device, int request_type, int request, int value, int index, u8* data, int length, USBCallback callback, void * userData)
networker 0:d6bff1c2dab1 1001 {
networker 0:d6bff1c2dab1 1002 Setup* setup = GetSetup(device);
networker 0:d6bff1c2dab1 1003 if (!setup)
networker 0:d6bff1c2dab1 1004 return ERR_DEVICE_NOT_FOUND;
networker 0:d6bff1c2dab1 1005
networker 0:d6bff1c2dab1 1006 // Async control calls may overwrite setup buffer of previous call, so we need to wait before setting up next call
networker 0:d6bff1c2dab1 1007 WaitIODone(_controller.GetEndpoint(device,0));
networker 0:d6bff1c2dab1 1008
networker 0:d6bff1c2dab1 1009 setup->bm_request_type = request_type;
networker 0:d6bff1c2dab1 1010 setup->b_request = request;
networker 0:d6bff1c2dab1 1011 setup->w_value = value;
networker 0:d6bff1c2dab1 1012 setup->w_index = index;
networker 0:d6bff1c2dab1 1013 setup->w_length = length;
networker 0:d6bff1c2dab1 1014 return USBTransfer(device,0,request_type & DEVICE_TO_HOST,data,length,callback,userData);
networker 0:d6bff1c2dab1 1015 }
networker 0:d6bff1c2dab1 1016
networker 0:d6bff1c2dab1 1017 int USBInterruptTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
networker 0:d6bff1c2dab1 1018 {
networker 0:d6bff1c2dab1 1019 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_INTERRUPT,data,length,callback,userData);
networker 0:d6bff1c2dab1 1020 }
networker 0:d6bff1c2dab1 1021
networker 0:d6bff1c2dab1 1022 int USBBulkTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
networker 0:d6bff1c2dab1 1023 {
networker 0:d6bff1c2dab1 1024 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_BULK,data,length,callback,userData);
networker 0:d6bff1c2dab1 1025 }
networker 0:d6bff1c2dab1 1026
networker 0:d6bff1c2dab1 1027 int GetDescriptor(int device, int descType,int descIndex, u8* data, int length)
networker 0:d6bff1c2dab1 1028 {
networker 0:d6bff1c2dab1 1029 return USBControlTransfer(device,DEVICE_TO_HOST | RECIPIENT_DEVICE, GET_DESCRIPTOR,(descType << 8)|(descIndex), 0, data, length, 0);
networker 0:d6bff1c2dab1 1030 }
networker 0:d6bff1c2dab1 1031
networker 0:d6bff1c2dab1 1032 int GetString(int device, int index, char* dst, int length)
networker 0:d6bff1c2dab1 1033 {
networker 0:d6bff1c2dab1 1034 u8 buffer[255];
networker 0:d6bff1c2dab1 1035 int le = GetDescriptor(device,DESCRIPTOR_TYPE_STRING,index,buffer,sizeof(buffer));
networker 0:d6bff1c2dab1 1036 if (le < 0)
networker 0:d6bff1c2dab1 1037 return le;
networker 0:d6bff1c2dab1 1038 if (length < 1)
networker 0:d6bff1c2dab1 1039 return -1;
networker 0:d6bff1c2dab1 1040 length <<= 1;
networker 0:d6bff1c2dab1 1041 if (le > length)
networker 0:d6bff1c2dab1 1042 le = length;
networker 0:d6bff1c2dab1 1043 for (int j = 2; j < le; j += 2)
networker 0:d6bff1c2dab1 1044 *dst++ = buffer[j];
networker 0:d6bff1c2dab1 1045 *dst = 0;
networker 0:d6bff1c2dab1 1046 return (le>>1)-1;
networker 0:d6bff1c2dab1 1047 }
networker 0:d6bff1c2dab1 1048
networker 0:d6bff1c2dab1 1049 int SetAddress(int device, int new_addr)
networker 0:d6bff1c2dab1 1050 {
networker 0:d6bff1c2dab1 1051 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_ADDRESS, new_addr, 0, 0, 0, 0);
networker 0:d6bff1c2dab1 1052 }
networker 0:d6bff1c2dab1 1053
networker 0:d6bff1c2dab1 1054 int SetConfiguration(int device, int configNum)
networker 0:d6bff1c2dab1 1055 {
networker 0:d6bff1c2dab1 1056 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_CONFIGURATION, configNum, 0, 0, 0, 0);
networker 0:d6bff1c2dab1 1057 }
networker 0:d6bff1c2dab1 1058
networker 0:d6bff1c2dab1 1059 int SetInterface(int device, int ifNum, int altNum)
networker 0:d6bff1c2dab1 1060 {
networker 0:d6bff1c2dab1 1061 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_INTERFACE, SET_INTERFACE, altNum, ifNum, 0, 0, 0);
networker 0:d6bff1c2dab1 1062 }
networker 0:d6bff1c2dab1 1063
networker 0:d6bff1c2dab1 1064 // HUB stuff
networker 0:d6bff1c2dab1 1065 int SetPortFeature(int device, int feature, int index)
networker 0:d6bff1c2dab1 1066 {
networker 0:d6bff1c2dab1 1067 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,SET_FEATURE,feature,index,0,0);
networker 0:d6bff1c2dab1 1068 }
networker 0:d6bff1c2dab1 1069
networker 0:d6bff1c2dab1 1070 int ClearPortFeature(int device, int feature, int index)
networker 0:d6bff1c2dab1 1071 {
networker 0:d6bff1c2dab1 1072 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,CLEAR_FEATURE,feature,index,0,0);
networker 0:d6bff1c2dab1 1073 }
networker 0:d6bff1c2dab1 1074
networker 0:d6bff1c2dab1 1075 int SetPortPower(int device, int port)
networker 0:d6bff1c2dab1 1076 {
networker 0:d6bff1c2dab1 1077 int r = SetPortFeature(device,PORT_POWER,port);
networker 0:d6bff1c2dab1 1078 _controller.DelayMS(20); // 80ms to turn on a hubs power... DESCRIPTOR? todo
networker 0:d6bff1c2dab1 1079 return r;
networker 0:d6bff1c2dab1 1080 }
networker 0:d6bff1c2dab1 1081
networker 0:d6bff1c2dab1 1082 int SetPortReset(int device, int port)
networker 0:d6bff1c2dab1 1083 {
networker 0:d6bff1c2dab1 1084 return SetPortFeature(device,PORT_RESET,port);
networker 0:d6bff1c2dab1 1085 }
networker 0:d6bff1c2dab1 1086
networker 0:d6bff1c2dab1 1087 int GetPortStatus(int device, int port, u32* status)
networker 0:d6bff1c2dab1 1088 {
networker 0:d6bff1c2dab1 1089 return USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,GET_STATUS,0,port,(u8*)status,4);
networker 0:d6bff1c2dab1 1090 }