hokuto Abe / Mbed 2 deprecated nisiBlutooth

USBHost.cpp@0:db1ba09e8bfa, 2012-07-10 (annotated)

Committer:
hosei2
Date:
Tue Jul 10 11:36:47 2012 +0000
Revision:
0:db1ba09e8bfa
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hosei2 0:db1ba09e8bfa 1
hosei2 0:db1ba09e8bfa 2 /*
hosei2 0:db1ba09e8bfa 3 Copyright (c) 2010 Peter Barrett
hosei2 0:db1ba09e8bfa 4
hosei2 0:db1ba09e8bfa 5 Permission is hereby granted, free of charge, to any person obtaining a copy
hosei2 0:db1ba09e8bfa 6 of this software and associated documentation files (the "Software"), to deal
hosei2 0:db1ba09e8bfa 7 in the Software without restriction, including without limitation the rights
hosei2 0:db1ba09e8bfa 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hosei2 0:db1ba09e8bfa 9 copies of the Software, and to permit persons to whom the Software is
hosei2 0:db1ba09e8bfa 10 furnished to do so, subject to the following conditions:
hosei2 0:db1ba09e8bfa 11
hosei2 0:db1ba09e8bfa 12 The above copyright notice and this permission notice shall be included in
hosei2 0:db1ba09e8bfa 13 all copies or substantial portions of the Software.
hosei2 0:db1ba09e8bfa 14
hosei2 0:db1ba09e8bfa 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hosei2 0:db1ba09e8bfa 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hosei2 0:db1ba09e8bfa 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hosei2 0:db1ba09e8bfa 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hosei2 0:db1ba09e8bfa 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hosei2 0:db1ba09e8bfa 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hosei2 0:db1ba09e8bfa 21 THE SOFTWARE.
hosei2 0:db1ba09e8bfa 22 */
hosei2 0:db1ba09e8bfa 23
hosei2 0:db1ba09e8bfa 24 #include "mbed.h"
hosei2 0:db1ba09e8bfa 25 #include "USBHost.h"
hosei2 0:db1ba09e8bfa 26
hosei2 0:db1ba09e8bfa 27 // Config (default uses x bytes)
hosei2 0:db1ba09e8bfa 28 #define MAX_DEVICES 8 // Max number of devices
hosei2 0:db1ba09e8bfa 29 #define MAX_ENDPOINTS_TOTAL 16 // Max number of endpoints total
hosei2 0:db1ba09e8bfa 30 #define MAX_ENDPOINTS_PER_DEVICE 8 // Max number of endpoints for any one device
hosei2 0:db1ba09e8bfa 31
hosei2 0:db1ba09e8bfa 32 #define USBLOG 1
hosei2 0:db1ba09e8bfa 33 #if USBLOG
hosei2 0:db1ba09e8bfa 34 #define LOG(...) printf(__VA_ARGS__)
hosei2 0:db1ba09e8bfa 35 #else
hosei2 0:db1ba09e8bfa 36 #define LOG(...) do {} while(0)
hosei2 0:db1ba09e8bfa 37 #endif
hosei2 0:db1ba09e8bfa 38
hosei2 0:db1ba09e8bfa 39 // USB host structures
hosei2 0:db1ba09e8bfa 40
hosei2 0:db1ba09e8bfa 41 #define USB_RAM_SIZE 16*1024 // AHB SRAM block 1 TODO MACHINE DEPENDENT
hosei2 0:db1ba09e8bfa 42 #define USB_RAM_BASE 0x2007C000
hosei2 0:db1ba09e8bfa 43
hosei2 0:db1ba09e8bfa 44 #define TOKEN_SETUP 0
hosei2 0:db1ba09e8bfa 45 #define TOKEN_IN 1
hosei2 0:db1ba09e8bfa 46 #define TOKEN_OUT 2
hosei2 0:db1ba09e8bfa 47
hosei2 0:db1ba09e8bfa 48 // Status flags from hub
hosei2 0:db1ba09e8bfa 49 #define PORT_CONNECTION 0
hosei2 0:db1ba09e8bfa 50 #define PORT_ENABLE 1
hosei2 0:db1ba09e8bfa 51 #define PORT_SUSPEND 2
hosei2 0:db1ba09e8bfa 52 #define PORT_OVER_CURRENT 3
hosei2 0:db1ba09e8bfa 53 #define PORT_RESET 4
hosei2 0:db1ba09e8bfa 54 #define PORT_POWER 8
hosei2 0:db1ba09e8bfa 55 #define PORT_LOW_SPEED 9
hosei2 0:db1ba09e8bfa 56
hosei2 0:db1ba09e8bfa 57 #define C_PORT_CONNECTION 16
hosei2 0:db1ba09e8bfa 58 #define C_PORT_ENABLE 17
hosei2 0:db1ba09e8bfa 59 #define C_PORT_SUSPEND 18
hosei2 0:db1ba09e8bfa 60 #define C_PORT_OVER_CURRENT 19
hosei2 0:db1ba09e8bfa 61 #define C_PORT_RESET 20
hosei2 0:db1ba09e8bfa 62
hosei2 0:db1ba09e8bfa 63 typedef struct {
hosei2 0:db1ba09e8bfa 64 u8 bm_request_type;
hosei2 0:db1ba09e8bfa 65 u8 b_request;
hosei2 0:db1ba09e8bfa 66 u16 w_value;
hosei2 0:db1ba09e8bfa 67 u16 w_index;
hosei2 0:db1ba09e8bfa 68 u16 w_length;
hosei2 0:db1ba09e8bfa 69 } Setup;
hosei2 0:db1ba09e8bfa 70
hosei2 0:db1ba09e8bfa 71
hosei2 0:db1ba09e8bfa 72 // Hub stuff is kept private just to keep api simple
hosei2 0:db1ba09e8bfa 73 int SetPortFeature(int device, int feature, int index);
hosei2 0:db1ba09e8bfa 74 int ClearPortFeature(int device, int feature, int index);
hosei2 0:db1ba09e8bfa 75 int SetPortPower(int device, int port);
hosei2 0:db1ba09e8bfa 76 int SetPortReset(int device, int port);
hosei2 0:db1ba09e8bfa 77 int GetPortStatus(int device, int port, u32* status);
hosei2 0:db1ba09e8bfa 78
hosei2 0:db1ba09e8bfa 79 //===================================================================
hosei2 0:db1ba09e8bfa 80 //===================================================================
hosei2 0:db1ba09e8bfa 81 // Hardware defines
hosei2 0:db1ba09e8bfa 82
hosei2 0:db1ba09e8bfa 83 // HcControl
hosei2 0:db1ba09e8bfa 84 #define PeriodicListEnable 0x00000004
hosei2 0:db1ba09e8bfa 85 #define IsochronousEnable 0x00000008
hosei2 0:db1ba09e8bfa 86 #define ControlListEnable 0x00000010
hosei2 0:db1ba09e8bfa 87 #define BulkListEnable 0x00000020
hosei2 0:db1ba09e8bfa 88 #define OperationalMask 0x00000080
hosei2 0:db1ba09e8bfa 89 #define HostControllerFunctionalState 0x000000C0
hosei2 0:db1ba09e8bfa 90
hosei2 0:db1ba09e8bfa 91 // HcCommandStatus
hosei2 0:db1ba09e8bfa 92 #define HostControllerReset 0x00000001
hosei2 0:db1ba09e8bfa 93 #define ControlListFilled 0x00000002
hosei2 0:db1ba09e8bfa 94 #define BulkListFilled 0x00000004
hosei2 0:db1ba09e8bfa 95
hosei2 0:db1ba09e8bfa 96 // HcInterruptStatus Register
hosei2 0:db1ba09e8bfa 97 #define WritebackDoneHead 0x00000002
hosei2 0:db1ba09e8bfa 98 #define StartofFrame 0x00000004
hosei2 0:db1ba09e8bfa 99 #define ResumeDetected 0x00000008
hosei2 0:db1ba09e8bfa 100 #define UnrecoverableError 0x00000010
hosei2 0:db1ba09e8bfa 101 #define FrameNumberOverflow 0x00000020
hosei2 0:db1ba09e8bfa 102 #define RootHubStatusChange 0x00000040
hosei2 0:db1ba09e8bfa 103 #define OwnershipChange 0x00000080
hosei2 0:db1ba09e8bfa 104 #define MasterInterruptEnable 0x80000000
hosei2 0:db1ba09e8bfa 105
hosei2 0:db1ba09e8bfa 106 // HcRhStatus
hosei2 0:db1ba09e8bfa 107 #define SetGlobalPower 0x00010000
hosei2 0:db1ba09e8bfa 108 #define DeviceRemoteWakeupEnable 0x00008000
hosei2 0:db1ba09e8bfa 109
hosei2 0:db1ba09e8bfa 110 // HcRhPortStatus (hub 0, port 1)
hosei2 0:db1ba09e8bfa 111 #define CurrentConnectStatus 0x00000001
hosei2 0:db1ba09e8bfa 112 #define PortEnableStatus 0x00000002
hosei2 0:db1ba09e8bfa 113 #define PortSuspendStatus 0x00000004
hosei2 0:db1ba09e8bfa 114 #define PortOverCurrentIndicator 0x00000008
hosei2 0:db1ba09e8bfa 115 #define PortResetStatus 0x00000010
hosei2 0:db1ba09e8bfa 116
hosei2 0:db1ba09e8bfa 117 #define PortPowerStatus 0x00000100
hosei2 0:db1ba09e8bfa 118 #define LowspeedDevice 0x00000200
hosei2 0:db1ba09e8bfa 119 #define HighspeedDevice 0x00000400
hosei2 0:db1ba09e8bfa 120
hosei2 0:db1ba09e8bfa 121 #define ConnectStatusChange (CurrentConnectStatus << 16)
hosei2 0:db1ba09e8bfa 122 #define PortResetStatusChange (PortResetStatus << 16)
hosei2 0:db1ba09e8bfa 123
hosei2 0:db1ba09e8bfa 124
hosei2 0:db1ba09e8bfa 125 #define TD_ROUNDING (u32)0x00040000
hosei2 0:db1ba09e8bfa 126 #define TD_SETUP (u32)0x00000000
hosei2 0:db1ba09e8bfa 127 #define TD_IN (u32)0x00100000
hosei2 0:db1ba09e8bfa 128 #define TD_OUT (u32)0x00080000
hosei2 0:db1ba09e8bfa 129 #define TD_DELAY_INT(x) (u32)((x) << 21)
hosei2 0:db1ba09e8bfa 130 #define TD_TOGGLE_0 (u32)0x02000000
hosei2 0:db1ba09e8bfa 131 #define TD_TOGGLE_1 (u32)0x03000000
hosei2 0:db1ba09e8bfa 132 #define TD_CC (u32)0xF0000000
hosei2 0:db1ba09e8bfa 133
hosei2 0:db1ba09e8bfa 134 // HostController EndPoint Descriptor
hosei2 0:db1ba09e8bfa 135 typedef struct {
hosei2 0:db1ba09e8bfa 136 volatile u32 Control;
hosei2 0:db1ba09e8bfa 137 volatile u32 TailTd;
hosei2 0:db1ba09e8bfa 138 volatile u32 HeadTd;
hosei2 0:db1ba09e8bfa 139 volatile u32 Next;
hosei2 0:db1ba09e8bfa 140 } HCED;
hosei2 0:db1ba09e8bfa 141
hosei2 0:db1ba09e8bfa 142 // HostController Transfer Descriptor
hosei2 0:db1ba09e8bfa 143 typedef struct {
hosei2 0:db1ba09e8bfa 144 volatile u32 Control;
hosei2 0:db1ba09e8bfa 145 volatile u32 CurrBufPtr;
hosei2 0:db1ba09e8bfa 146 volatile u32 Next;
hosei2 0:db1ba09e8bfa 147 volatile u32 BufEnd;
hosei2 0:db1ba09e8bfa 148 } HCTD;
hosei2 0:db1ba09e8bfa 149
hosei2 0:db1ba09e8bfa 150 // Host Controller Communication Area
hosei2 0:db1ba09e8bfa 151 typedef struct {
hosei2 0:db1ba09e8bfa 152 volatile u32 InterruptTable[32];
hosei2 0:db1ba09e8bfa 153 volatile u16 FrameNumber;
hosei2 0:db1ba09e8bfa 154 volatile u16 FrameNumberPad;
hosei2 0:db1ba09e8bfa 155 volatile u32 DoneHead;
hosei2 0:db1ba09e8bfa 156 volatile u8 Reserved[120];
hosei2 0:db1ba09e8bfa 157 } HCCA;
hosei2 0:db1ba09e8bfa 158
hosei2 0:db1ba09e8bfa 159 //====================================================================================
hosei2 0:db1ba09e8bfa 160 //====================================================================================
hosei2 0:db1ba09e8bfa 161
hosei2 0:db1ba09e8bfa 162 class HostController;
hosei2 0:db1ba09e8bfa 163 class Endpoint;
hosei2 0:db1ba09e8bfa 164 class Device;
hosei2 0:db1ba09e8bfa 165
hosei2 0:db1ba09e8bfa 166 // must be 3*16 bytes long
hosei2 0:db1ba09e8bfa 167 class Endpoint
hosei2 0:db1ba09e8bfa 168 {
hosei2 0:db1ba09e8bfa 169 public:
hosei2 0:db1ba09e8bfa 170 HCED EndpointDescriptor; // Pointer to EndpointDescriptor == Pointer to Endpoint
hosei2 0:db1ba09e8bfa 171 HCTD TDHead;
hosei2 0:db1ba09e8bfa 172
hosei2 0:db1ba09e8bfa 173 enum State
hosei2 0:db1ba09e8bfa 174 {
hosei2 0:db1ba09e8bfa 175 Free,
hosei2 0:db1ba09e8bfa 176 NotQueued,
hosei2 0:db1ba09e8bfa 177 Idle,
hosei2 0:db1ba09e8bfa 178 SetupQueued,
hosei2 0:db1ba09e8bfa 179 DataQueued,
hosei2 0:db1ba09e8bfa 180 StatusQueued,
hosei2 0:db1ba09e8bfa 181 CallbackPending
hosei2 0:db1ba09e8bfa 182 };
hosei2 0:db1ba09e8bfa 183
hosei2 0:db1ba09e8bfa 184 volatile u8 CurrentState;
hosei2 0:db1ba09e8bfa 185 u8 Flags; // 0x80 In, 0x03 mask endpoint type
hosei2 0:db1ba09e8bfa 186
hosei2 0:db1ba09e8bfa 187 u16 Length;
hosei2 0:db1ba09e8bfa 188 u8* Data;
hosei2 0:db1ba09e8bfa 189 USBCallback Callback; // Must be a multiple of 16 bytes long
hosei2 0:db1ba09e8bfa 190 void* UserData;
hosei2 0:db1ba09e8bfa 191
hosei2 0:db1ba09e8bfa 192 int Address()
hosei2 0:db1ba09e8bfa 193 {
hosei2 0:db1ba09e8bfa 194 int ep = (EndpointDescriptor.Control >> 7) & 0xF;
hosei2 0:db1ba09e8bfa 195 if (ep)
hosei2 0:db1ba09e8bfa 196 ep |= Flags & 0x80;
hosei2 0:db1ba09e8bfa 197 return ep;
hosei2 0:db1ba09e8bfa 198 }
hosei2 0:db1ba09e8bfa 199
hosei2 0:db1ba09e8bfa 200 int Device()
hosei2 0:db1ba09e8bfa 201 {
hosei2 0:db1ba09e8bfa 202 return EndpointDescriptor.Control & 0x7F;
hosei2 0:db1ba09e8bfa 203 }
hosei2 0:db1ba09e8bfa 204
hosei2 0:db1ba09e8bfa 205 int Status()
hosei2 0:db1ba09e8bfa 206 {
hosei2 0:db1ba09e8bfa 207 return (TDHead.Control >> 28) & 0xF;
hosei2 0:db1ba09e8bfa 208 }
hosei2 0:db1ba09e8bfa 209
hosei2 0:db1ba09e8bfa 210 u32 Enqueue(u32 head)
hosei2 0:db1ba09e8bfa 211 {
hosei2 0:db1ba09e8bfa 212 if (CurrentState == NotQueued)
hosei2 0:db1ba09e8bfa 213 {
hosei2 0:db1ba09e8bfa 214 EndpointDescriptor.Next = head;
hosei2 0:db1ba09e8bfa 215 head = (u32)&EndpointDescriptor;
hosei2 0:db1ba09e8bfa 216 CurrentState = Idle;
hosei2 0:db1ba09e8bfa 217 }
hosei2 0:db1ba09e8bfa 218 return head;
hosei2 0:db1ba09e8bfa 219 }
hosei2 0:db1ba09e8bfa 220 };
hosei2 0:db1ba09e8bfa 221
hosei2 0:db1ba09e8bfa 222 class Device
hosei2 0:db1ba09e8bfa 223 {
hosei2 0:db1ba09e8bfa 224 public:
hosei2 0:db1ba09e8bfa 225 u8 _endpointMap[MAX_ENDPOINTS_PER_DEVICE*2];
hosei2 0:db1ba09e8bfa 226 u8 Hub;
hosei2 0:db1ba09e8bfa 227 u8 Port;
hosei2 0:db1ba09e8bfa 228 u8 Addr;
hosei2 0:db1ba09e8bfa 229 u8 Pad;
hosei2 0:db1ba09e8bfa 230
hosei2 0:db1ba09e8bfa 231 // Only if this device is a hub
hosei2 0:db1ba09e8bfa 232 u8 HubPortCount; // nonzero if this is a hub
hosei2 0:db1ba09e8bfa 233 u8 HubInterruptData;
hosei2 0:db1ba09e8bfa 234 u8 HubMap;
hosei2 0:db1ba09e8bfa 235 u8 HubMask;
hosei2 0:db1ba09e8bfa 236
hosei2 0:db1ba09e8bfa 237 int Flags; // 1 = Disconnected
hosei2 0:db1ba09e8bfa 238
hosei2 0:db1ba09e8bfa 239 Setup SetupBuffer;
hosei2 0:db1ba09e8bfa 240
hosei2 0:db1ba09e8bfa 241 // Allocate endpoint zero
hosei2 0:db1ba09e8bfa 242 int Init(DeviceDescriptor* d, int hub, int port, int addr, int lowSpeed)
hosei2 0:db1ba09e8bfa 243 {
hosei2 0:db1ba09e8bfa 244 Hub = hub;
hosei2 0:db1ba09e8bfa 245 Port = port;
hosei2 0:db1ba09e8bfa 246 Addr = addr;
hosei2 0:db1ba09e8bfa 247 Flags = lowSpeed;
hosei2 0:db1ba09e8bfa 248 memset(_endpointMap,0xFF,sizeof(_endpointMap));
hosei2 0:db1ba09e8bfa 249 return 0;
hosei2 0:db1ba09e8bfa 250 }
hosei2 0:db1ba09e8bfa 251
hosei2 0:db1ba09e8bfa 252 int SetEndpointIndex(int ep, int endpointIndex)
hosei2 0:db1ba09e8bfa 253 {
hosei2 0:db1ba09e8bfa 254 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
hosei2 0:db1ba09e8bfa 255 {
hosei2 0:db1ba09e8bfa 256 if (_endpointMap[i] == 0xFF) // Add endpoint to map
hosei2 0:db1ba09e8bfa 257 {
hosei2 0:db1ba09e8bfa 258 _endpointMap[i] = ep;
hosei2 0:db1ba09e8bfa 259 _endpointMap[i+1] = endpointIndex;
hosei2 0:db1ba09e8bfa 260 return 0;
hosei2 0:db1ba09e8bfa 261 }
hosei2 0:db1ba09e8bfa 262 }
hosei2 0:db1ba09e8bfa 263 return ERR_ENDPOINT_NONE_LEFT;
hosei2 0:db1ba09e8bfa 264 }
hosei2 0:db1ba09e8bfa 265
hosei2 0:db1ba09e8bfa 266 int GetEndpointIndex(int ep)
hosei2 0:db1ba09e8bfa 267 {
hosei2 0:db1ba09e8bfa 268 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
hosei2 0:db1ba09e8bfa 269 {
hosei2 0:db1ba09e8bfa 270 if (_endpointMap[i] == ep)
hosei2 0:db1ba09e8bfa 271 return _endpointMap[i+1];
hosei2 0:db1ba09e8bfa 272 if (_endpointMap[i] == 0xFF)
hosei2 0:db1ba09e8bfa 273 break;
hosei2 0:db1ba09e8bfa 274 }
hosei2 0:db1ba09e8bfa 275 return -1;
hosei2 0:db1ba09e8bfa 276 }
hosei2 0:db1ba09e8bfa 277 };
hosei2 0:db1ba09e8bfa 278
hosei2 0:db1ba09e8bfa 279 class HostController
hosei2 0:db1ba09e8bfa 280 {
hosei2 0:db1ba09e8bfa 281 public:
hosei2 0:db1ba09e8bfa 282 HCCA CommunicationArea;
hosei2 0:db1ba09e8bfa 283 Endpoint Endpoints[MAX_ENDPOINTS_TOTAL]; // Multiple of 16
hosei2 0:db1ba09e8bfa 284
hosei2 0:db1ba09e8bfa 285 Endpoint EndpointZero; // For device enumeration
hosei2 0:db1ba09e8bfa 286 HCTD _commonTail;
hosei2 0:db1ba09e8bfa 287 Setup _setupZero;
hosei2 0:db1ba09e8bfa 288
hosei2 0:db1ba09e8bfa 289 Device Devices[MAX_DEVICES];
hosei2 0:db1ba09e8bfa 290 u32 _frameNumber; // 32 bit ms counter
hosei2 0:db1ba09e8bfa 291
hosei2 0:db1ba09e8bfa 292 u8 _callbacksPending; // Endpoints with callbacks are pending, set from ISR via ProcessDoneQueue
hosei2 0:db1ba09e8bfa 293 u8 _rootHubStatusChange; // Root hub status has changed, set from ISR
hosei2 0:db1ba09e8bfa 294 u8 _unused0;
hosei2 0:db1ba09e8bfa 295 u8 _unused1;
hosei2 0:db1ba09e8bfa 296
hosei2 0:db1ba09e8bfa 297 u8 _connectPending; // Reset has initiated a connect
hosei2 0:db1ba09e8bfa 298 u8 _connectCountdown; // Number of ms left after reset before we can connect
hosei2 0:db1ba09e8bfa 299 u8 _connectHub; // Will connect on this hub
hosei2 0:db1ba09e8bfa 300 u8 _connectPort; // ... and this port
hosei2 0:db1ba09e8bfa 301
hosei2 0:db1ba09e8bfa 302 u8 SRAM[0]; // Start of free SRAM
hosei2 0:db1ba09e8bfa 303
hosei2 0:db1ba09e8bfa 304 void Loop()
hosei2 0:db1ba09e8bfa 305 {
hosei2 0:db1ba09e8bfa 306 u16 elapsed = CommunicationArea.FrameNumber - (u16)_frameNumber; // extend to 32 bits
hosei2 0:db1ba09e8bfa 307 _frameNumber += elapsed;
hosei2 0:db1ba09e8bfa 308
hosei2 0:db1ba09e8bfa 309 // Do callbacks, if any
hosei2 0:db1ba09e8bfa 310 while (_callbacksPending)
hosei2 0:db1ba09e8bfa 311 {
hosei2 0:db1ba09e8bfa 312 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
hosei2 0:db1ba09e8bfa 313 {
hosei2 0:db1ba09e8bfa 314 Endpoint* endpoint = Endpoints + i;
hosei2 0:db1ba09e8bfa 315 if (endpoint->CurrentState == Endpoint::CallbackPending)
hosei2 0:db1ba09e8bfa 316 {
hosei2 0:db1ba09e8bfa 317 _callbacksPending--;
hosei2 0:db1ba09e8bfa 318 endpoint->CurrentState = Endpoint::Idle;
hosei2 0:db1ba09e8bfa 319 endpoint->Callback(endpoint->Device(),endpoint->Address(),endpoint->Status(),endpoint->Data,endpoint->Length,endpoint->UserData);
hosei2 0:db1ba09e8bfa 320 }
hosei2 0:db1ba09e8bfa 321 }
hosei2 0:db1ba09e8bfa 322 }
hosei2 0:db1ba09e8bfa 323
hosei2 0:db1ba09e8bfa 324 // Deal with changes on the root hub
hosei2 0:db1ba09e8bfa 325 if (_rootHubStatusChange)
hosei2 0:db1ba09e8bfa 326 {
hosei2 0:db1ba09e8bfa 327 u32 status = LPC_USB->HcRhPortStatus1;
hosei2 0:db1ba09e8bfa 328 _rootHubStatusChange = 0;
hosei2 0:db1ba09e8bfa 329 if (status >> 16)
hosei2 0:db1ba09e8bfa 330 {
hosei2 0:db1ba09e8bfa 331 HubStatusChange(0,1,status);
hosei2 0:db1ba09e8bfa 332 LPC_USB->HcRhPortStatus1 = status & 0xFFFF0000; // clear status changes
hosei2 0:db1ba09e8bfa 333 }
hosei2 0:db1ba09e8bfa 334 }
hosei2 0:db1ba09e8bfa 335
hosei2 0:db1ba09e8bfa 336 // Connect after reset timeout
hosei2 0:db1ba09e8bfa 337 if (_connectCountdown)
hosei2 0:db1ba09e8bfa 338 {
hosei2 0:db1ba09e8bfa 339 if (elapsed >= _connectCountdown)
hosei2 0:db1ba09e8bfa 340 {
hosei2 0:db1ba09e8bfa 341 _connectCountdown = 0;
hosei2 0:db1ba09e8bfa 342 Connect(_connectHub,_connectPort & 0x7F,_connectPort & 0x80);
hosei2 0:db1ba09e8bfa 343 } else
hosei2 0:db1ba09e8bfa 344 _connectCountdown -= elapsed;
hosei2 0:db1ba09e8bfa 345 }
hosei2 0:db1ba09e8bfa 346 }
hosei2 0:db1ba09e8bfa 347
hosei2 0:db1ba09e8bfa 348 // HubInterrupt - bitmap in dev->HubInterruptData
hosei2 0:db1ba09e8bfa 349 void HubInterrupt(int device)
hosei2 0:db1ba09e8bfa 350 {
hosei2 0:db1ba09e8bfa 351 Device* dev = &Devices[device-1];
hosei2 0:db1ba09e8bfa 352 for (int i = 0; i < dev->HubPortCount; i++)
hosei2 0:db1ba09e8bfa 353 {
hosei2 0:db1ba09e8bfa 354 int port = i+1;
hosei2 0:db1ba09e8bfa 355 if (dev->HubInterruptData & (1 << port))
hosei2 0:db1ba09e8bfa 356 {
hosei2 0:db1ba09e8bfa 357 u32 status = 0;
hosei2 0:db1ba09e8bfa 358 GetPortStatus(device,port,&status);
hosei2 0:db1ba09e8bfa 359 if (status >> 16)
hosei2 0:db1ba09e8bfa 360 {
hosei2 0:db1ba09e8bfa 361 if (_connectPending && (status & ConnectStatusChange))
hosei2 0:db1ba09e8bfa 362 continue; // Don't connect again until previous device has been added and addressed
hosei2 0:db1ba09e8bfa 363
hosei2 0:db1ba09e8bfa 364 HubStatusChange(device,port,status);
hosei2 0:db1ba09e8bfa 365 if (status & ConnectStatusChange)
hosei2 0:db1ba09e8bfa 366 ClearPortFeature(device,C_PORT_CONNECTION,port);
hosei2 0:db1ba09e8bfa 367 if (status & PortResetStatusChange)
hosei2 0:db1ba09e8bfa 368 ClearPortFeature(device,C_PORT_RESET,port);
hosei2 0:db1ba09e8bfa 369 }
hosei2 0:db1ba09e8bfa 370 }
hosei2 0:db1ba09e8bfa 371 }
hosei2 0:db1ba09e8bfa 372 }
hosei2 0:db1ba09e8bfa 373
hosei2 0:db1ba09e8bfa 374 static void HubInterruptCallback(int device, int endpoint, int status, u8* data, int len, void* userData)
hosei2 0:db1ba09e8bfa 375 {
hosei2 0:db1ba09e8bfa 376 HostController* controller = (HostController*)userData;
hosei2 0:db1ba09e8bfa 377 if (status == 0)
hosei2 0:db1ba09e8bfa 378 controller->HubInterrupt(device);
hosei2 0:db1ba09e8bfa 379 USBInterruptTransfer(device,endpoint,data,1,HubInterruptCallback,userData);
hosei2 0:db1ba09e8bfa 380 }
hosei2 0:db1ba09e8bfa 381
hosei2 0:db1ba09e8bfa 382 int InitHub(int device)
hosei2 0:db1ba09e8bfa 383 {
hosei2 0:db1ba09e8bfa 384 u8 buf[16];
hosei2 0:db1ba09e8bfa 385 int r= USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_DEVICE,GET_DESCRIPTOR,(DESCRIPTOR_TYPE_HUB << 8),0,buf,sizeof(buf));
hosei2 0:db1ba09e8bfa 386 if (r < 0)
hosei2 0:db1ba09e8bfa 387 return ERR_HUB_INIT_FAILED;
hosei2 0:db1ba09e8bfa 388
hosei2 0:db1ba09e8bfa 389 // turn on power on the hubs ports
hosei2 0:db1ba09e8bfa 390 Device* dev = &Devices[device-1];
hosei2 0:db1ba09e8bfa 391 int ports = buf[2];
hosei2 0:db1ba09e8bfa 392 dev->HubPortCount = ports;
hosei2 0:db1ba09e8bfa 393 for (int i = 0; i < ports; i++)
hosei2 0:db1ba09e8bfa 394 SetPortPower(device,i+1);
hosei2 0:db1ba09e8bfa 395
hosei2 0:db1ba09e8bfa 396 // Enable hub change interrupts
hosei2 0:db1ba09e8bfa 397 return USBInterruptTransfer(device,0x81,&dev->HubInterruptData,1,HubInterruptCallback,this);
hosei2 0:db1ba09e8bfa 398 }
hosei2 0:db1ba09e8bfa 399
hosei2 0:db1ba09e8bfa 400 int AddEndpoint(int device, int ep, int attributes, int maxPacketSize, int interval)
hosei2 0:db1ba09e8bfa 401 {
hosei2 0:db1ba09e8bfa 402 LOG("AddEndpoint D:%02X A:%02X T:%02X P:%04X I:%02X\n",device,ep,attributes,maxPacketSize,interval);
hosei2 0:db1ba09e8bfa 403 Device* dev = &Devices[device-1];
hosei2 0:db1ba09e8bfa 404 Endpoint* endpoint = AllocateEndpoint(device,ep,attributes,maxPacketSize);
hosei2 0:db1ba09e8bfa 405 if (!endpoint)
hosei2 0:db1ba09e8bfa 406 return ERR_ENDPOINT_NONE_LEFT;
hosei2 0:db1ba09e8bfa 407 dev->SetEndpointIndex(ep,endpoint - Endpoints);
hosei2 0:db1ba09e8bfa 408 endpoint->EndpointDescriptor.Control |= dev->Flags; // Map in slow speed
hosei2 0:db1ba09e8bfa 409 return 0; // TODO ed->bInterval
hosei2 0:db1ba09e8bfa 410 }
hosei2 0:db1ba09e8bfa 411
hosei2 0:db1ba09e8bfa 412 int AddEndpoint(int device, EndpointDescriptor* ed)
hosei2 0:db1ba09e8bfa 413 {
hosei2 0:db1ba09e8bfa 414 return AddEndpoint(device,ed->bEndpointAddress,ed->bmAttributes,ed->wMaxPacketSize,ed->bInterval);
hosei2 0:db1ba09e8bfa 415 }
hosei2 0:db1ba09e8bfa 416
hosei2 0:db1ba09e8bfa 417 // allocate a endpoint
hosei2 0:db1ba09e8bfa 418 Endpoint* AllocateEndpoint(int device, int endpointAddress, int type, int maxPacketSize)
hosei2 0:db1ba09e8bfa 419 {
hosei2 0:db1ba09e8bfa 420 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
hosei2 0:db1ba09e8bfa 421 {
hosei2 0:db1ba09e8bfa 422 Endpoint* ep = &Endpoints[i];
hosei2 0:db1ba09e8bfa 423 if (ep->CurrentState == 0)
hosei2 0:db1ba09e8bfa 424 {
hosei2 0:db1ba09e8bfa 425 //LOG("Allocated endpoint %d to %02X:%02X\n",i,device,endpointAddress);
hosei2 0:db1ba09e8bfa 426 ep->Flags = (endpointAddress & 0x80) | (type & 3);
hosei2 0:db1ba09e8bfa 427 ep->CurrentState = Endpoint::NotQueued;
hosei2 0:db1ba09e8bfa 428 ep->EndpointDescriptor.Control = (maxPacketSize << 16) | ((endpointAddress & 0x7F) << 7) | device;
hosei2 0:db1ba09e8bfa 429 return ep;
hosei2 0:db1ba09e8bfa 430 }
hosei2 0:db1ba09e8bfa 431 }
hosei2 0:db1ba09e8bfa 432 return 0;
hosei2 0:db1ba09e8bfa 433 }
hosei2 0:db1ba09e8bfa 434
hosei2 0:db1ba09e8bfa 435 Endpoint* GetEndpoint(int device, int ep)
hosei2 0:db1ba09e8bfa 436 {
hosei2 0:db1ba09e8bfa 437 if (device == 0)
hosei2 0:db1ba09e8bfa 438 {
hosei2 0:db1ba09e8bfa 439 //printf("WARNING: USING DEVICE 0\n");
hosei2 0:db1ba09e8bfa 440 return &EndpointZero;
hosei2 0:db1ba09e8bfa 441 }
hosei2 0:db1ba09e8bfa 442 if (device > MAX_DEVICES)
hosei2 0:db1ba09e8bfa 443 return 0;
hosei2 0:db1ba09e8bfa 444 int i = Devices[device-1].GetEndpointIndex(ep);
hosei2 0:db1ba09e8bfa 445 if (i == -1)
hosei2 0:db1ba09e8bfa 446 return 0;
hosei2 0:db1ba09e8bfa 447 return Endpoints + i;
hosei2 0:db1ba09e8bfa 448 }
hosei2 0:db1ba09e8bfa 449
hosei2 0:db1ba09e8bfa 450 int Transfer(Endpoint* endpoint, int token, u8* data, int len, int state)
hosei2 0:db1ba09e8bfa 451 {
hosei2 0:db1ba09e8bfa 452 //LOG("Transfer %02X T:%d Len:%d S:%d\n",endpoint->Address(),token,len,state);
hosei2 0:db1ba09e8bfa 453
hosei2 0:db1ba09e8bfa 454 int toggle = 0;
hosei2 0:db1ba09e8bfa 455 if (endpoint->Address() == 0)
hosei2 0:db1ba09e8bfa 456 toggle = (token == TOKEN_SETUP) ? TD_TOGGLE_0 : TD_TOGGLE_1;
hosei2 0:db1ba09e8bfa 457
hosei2 0:db1ba09e8bfa 458 if (token != TOKEN_SETUP)
hosei2 0:db1ba09e8bfa 459 token = (token == TOKEN_IN ? TD_IN : TD_OUT);
hosei2 0:db1ba09e8bfa 460
hosei2 0:db1ba09e8bfa 461 HCTD* head = &endpoint->TDHead;
hosei2 0:db1ba09e8bfa 462 HCTD* tail = &_commonTail;
hosei2 0:db1ba09e8bfa 463
hosei2 0:db1ba09e8bfa 464 head->Control = TD_ROUNDING | token | TD_DELAY_INT(0) | toggle | TD_CC;
hosei2 0:db1ba09e8bfa 465 head->CurrBufPtr = (u32)data;
hosei2 0:db1ba09e8bfa 466 head->BufEnd = (u32)(data + len - 1);
hosei2 0:db1ba09e8bfa 467 head->Next = (u32)tail;
hosei2 0:db1ba09e8bfa 468
hosei2 0:db1ba09e8bfa 469 HCED* ed = &endpoint->EndpointDescriptor;
hosei2 0:db1ba09e8bfa 470 ed->HeadTd = (u32)head | (ed->HeadTd & 0x00000002); // carry toggle
hosei2 0:db1ba09e8bfa 471 ed->TailTd = (u32)tail;
hosei2 0:db1ba09e8bfa 472
hosei2 0:db1ba09e8bfa 473 //HCTD* td = head;
hosei2 0:db1ba09e8bfa 474 //LOG("%04X TD %08X %08X %08X Next:%08X\n",CommunicationArea.FrameNumber,td->Control,td->CurrBufPtr,td->BufEnd,td->Next);
hosei2 0:db1ba09e8bfa 475 //LOG("%04X ED %08X %08X %08X\n",CommunicationArea.FrameNumber,ed->Control,ed->HeadTd,ed->TailTd);
hosei2 0:db1ba09e8bfa 476
hosei2 0:db1ba09e8bfa 477 switch (endpoint->Flags & 3)
hosei2 0:db1ba09e8bfa 478 {
hosei2 0:db1ba09e8bfa 479 case ENDPOINT_CONTROL:
hosei2 0:db1ba09e8bfa 480 LPC_USB->HcControlHeadED = endpoint->Enqueue(LPC_USB->HcControlHeadED); // May change state NotQueued->Idle
hosei2 0:db1ba09e8bfa 481 endpoint->CurrentState = state; // Get in before an int
hosei2 0:db1ba09e8bfa 482 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | ControlListFilled;
hosei2 0:db1ba09e8bfa 483 LPC_USB->HcControl = LPC_USB->HcControl | ControlListEnable;
hosei2 0:db1ba09e8bfa 484 break;
hosei2 0:db1ba09e8bfa 485
hosei2 0:db1ba09e8bfa 486 case ENDPOINT_BULK:
hosei2 0:db1ba09e8bfa 487 LPC_USB->HcBulkHeadED = endpoint->Enqueue(LPC_USB->HcBulkHeadED);
hosei2 0:db1ba09e8bfa 488 endpoint->CurrentState = state;
hosei2 0:db1ba09e8bfa 489 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | BulkListFilled;
hosei2 0:db1ba09e8bfa 490 LPC_USB->HcControl = LPC_USB->HcControl | BulkListEnable;
hosei2 0:db1ba09e8bfa 491 break;
hosei2 0:db1ba09e8bfa 492
hosei2 0:db1ba09e8bfa 493 case ENDPOINT_INTERRUPT:
hosei2 0:db1ba09e8bfa 494 CommunicationArea.InterruptTable[0] = endpoint->Enqueue(CommunicationArea.InterruptTable[0]);
hosei2 0:db1ba09e8bfa 495 endpoint->CurrentState = state;
hosei2 0:db1ba09e8bfa 496 LPC_USB->HcControl |= PeriodicListEnable;
hosei2 0:db1ba09e8bfa 497 break;
hosei2 0:db1ba09e8bfa 498 }
hosei2 0:db1ba09e8bfa 499 return 0;
hosei2 0:db1ba09e8bfa 500 }
hosei2 0:db1ba09e8bfa 501
hosei2 0:db1ba09e8bfa 502 // Remove an endpoint from an active queue
hosei2 0:db1ba09e8bfa 503 bool Remove(HCED* ed, volatile HCED** queue)
hosei2 0:db1ba09e8bfa 504 {
hosei2 0:db1ba09e8bfa 505 if (*queue == 0)
hosei2 0:db1ba09e8bfa 506 return false;
hosei2 0:db1ba09e8bfa 507 if (*queue == (volatile HCED*)ed)
hosei2 0:db1ba09e8bfa 508 {
hosei2 0:db1ba09e8bfa 509 *queue = (volatile HCED*)ed->Next; // At head of queue
hosei2 0:db1ba09e8bfa 510 return true;
hosei2 0:db1ba09e8bfa 511 }
hosei2 0:db1ba09e8bfa 512
hosei2 0:db1ba09e8bfa 513 volatile HCED* head = *queue;
hosei2 0:db1ba09e8bfa 514 while (head)
hosei2 0:db1ba09e8bfa 515 {
hosei2 0:db1ba09e8bfa 516 if (head->Next == (u32)ed)
hosei2 0:db1ba09e8bfa 517 {
hosei2 0:db1ba09e8bfa 518 head->Next = ed->Next;
hosei2 0:db1ba09e8bfa 519 return true;
hosei2 0:db1ba09e8bfa 520 }
hosei2 0:db1ba09e8bfa 521 head = (volatile HCED*)head->Next;
hosei2 0:db1ba09e8bfa 522 }
hosei2 0:db1ba09e8bfa 523 return false;
hosei2 0:db1ba09e8bfa 524 }
hosei2 0:db1ba09e8bfa 525
hosei2 0:db1ba09e8bfa 526 void Release(Endpoint* endpoint)
hosei2 0:db1ba09e8bfa 527 {
hosei2 0:db1ba09e8bfa 528 if (endpoint->CurrentState == Endpoint::NotQueued)
hosei2 0:db1ba09e8bfa 529 {
hosei2 0:db1ba09e8bfa 530 // Never event used it, nothing to do
hosei2 0:db1ba09e8bfa 531 }
hosei2 0:db1ba09e8bfa 532 else
hosei2 0:db1ba09e8bfa 533 {
hosei2 0:db1ba09e8bfa 534 HCED* ed = (HCED*)endpoint;
hosei2 0:db1ba09e8bfa 535 ed->Control |= 0x4000; // SKIP
hosei2 0:db1ba09e8bfa 536 switch (endpoint->Flags & 0x03)
hosei2 0:db1ba09e8bfa 537 {
hosei2 0:db1ba09e8bfa 538 case ENDPOINT_CONTROL:
hosei2 0:db1ba09e8bfa 539 Remove(ed,(volatile HCED**)&LPC_USB->HcControlHeadED);
hosei2 0:db1ba09e8bfa 540 break;
hosei2 0:db1ba09e8bfa 541 case ENDPOINT_BULK:
hosei2 0:db1ba09e8bfa 542 Remove(ed,(volatile HCED**)&LPC_USB->HcBulkHeadED);
hosei2 0:db1ba09e8bfa 543 break;
hosei2 0:db1ba09e8bfa 544 case ENDPOINT_INTERRUPT:
hosei2 0:db1ba09e8bfa 545 for (int i = 0; i < 32; i++)
hosei2 0:db1ba09e8bfa 546 Remove(ed,(volatile HCED**)&CommunicationArea.InterruptTable[i]);
hosei2 0:db1ba09e8bfa 547 break;
hosei2 0:db1ba09e8bfa 548 }
hosei2 0:db1ba09e8bfa 549
hosei2 0:db1ba09e8bfa 550 u16 fn = CommunicationArea.FrameNumber;
hosei2 0:db1ba09e8bfa 551 while (fn == CommunicationArea.FrameNumber)
hosei2 0:db1ba09e8bfa 552 ; // Wait for next frame
hosei2 0:db1ba09e8bfa 553
hosei2 0:db1ba09e8bfa 554 }
hosei2 0:db1ba09e8bfa 555
hosei2 0:db1ba09e8bfa 556 // In theory, the endpoint is now dead.
hosei2 0:db1ba09e8bfa 557 // TODO: Will Callbacks ever be pending? BUGBUG
hosei2 0:db1ba09e8bfa 558 memset(endpoint,0,sizeof(Endpoint));
hosei2 0:db1ba09e8bfa 559 }
hosei2 0:db1ba09e8bfa 560
hosei2 0:db1ba09e8bfa 561 // Pop the last TD from the list
hosei2 0:db1ba09e8bfa 562 HCTD* Reverse(HCTD* current)
hosei2 0:db1ba09e8bfa 563 {
hosei2 0:db1ba09e8bfa 564 HCTD *result = NULL,*temp;
hosei2 0:db1ba09e8bfa 565 while (current)
hosei2 0:db1ba09e8bfa 566 {
hosei2 0:db1ba09e8bfa 567 temp = (HCTD*)current->Next;
hosei2 0:db1ba09e8bfa 568 current->Next = (u32)result;
hosei2 0:db1ba09e8bfa 569 result = current;
hosei2 0:db1ba09e8bfa 570 current = temp;
hosei2 0:db1ba09e8bfa 571 }
hosei2 0:db1ba09e8bfa 572 return result;
hosei2 0:db1ba09e8bfa 573 }
hosei2 0:db1ba09e8bfa 574
hosei2 0:db1ba09e8bfa 575 // Called from interrupt...
hosei2 0:db1ba09e8bfa 576 // Control endpoints use a state machine to progress through the transfers
hosei2 0:db1ba09e8bfa 577 void ProcessDoneQueue(u32 tdList)
hosei2 0:db1ba09e8bfa 578 {
hosei2 0:db1ba09e8bfa 579 HCTD* list = Reverse((HCTD*)tdList);
hosei2 0:db1ba09e8bfa 580 while (list)
hosei2 0:db1ba09e8bfa 581 {
hosei2 0:db1ba09e8bfa 582 Endpoint* endpoint = (Endpoint*)(list-1);
hosei2 0:db1ba09e8bfa 583 list = (HCTD*)list->Next;
hosei2 0:db1ba09e8bfa 584 int ep = endpoint->Address();
hosei2 0:db1ba09e8bfa 585 bool in = endpoint->Flags & 0x80;
hosei2 0:db1ba09e8bfa 586 int status = (endpoint->TDHead.Control >> 28) & 0xF;
hosei2 0:db1ba09e8bfa 587
hosei2 0:db1ba09e8bfa 588 //LOG("ProcessDoneQueue %02X %08X\n",ep,endpoint->TDHead.Control);
hosei2 0:db1ba09e8bfa 589
hosei2 0:db1ba09e8bfa 590 if (status != 0)
hosei2 0:db1ba09e8bfa 591 {
hosei2 0:db1ba09e8bfa 592 LOG("ProcessDoneQueue status %02X %d\n",ep,status);
hosei2 0:db1ba09e8bfa 593 endpoint->CurrentState = Endpoint::Idle;
hosei2 0:db1ba09e8bfa 594 } else {
hosei2 0:db1ba09e8bfa 595 switch (endpoint->CurrentState)
hosei2 0:db1ba09e8bfa 596 {
hosei2 0:db1ba09e8bfa 597 case Endpoint::SetupQueued:
hosei2 0:db1ba09e8bfa 598 if (endpoint->Length == 0)
hosei2 0:db1ba09e8bfa 599 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Skip Data Phase
hosei2 0:db1ba09e8bfa 600 else
hosei2 0:db1ba09e8bfa 601 Transfer(endpoint,in ? TOKEN_IN : TOKEN_OUT,endpoint->Data,endpoint->Length, Endpoint::DataQueued); // Setup is done, now Data
hosei2 0:db1ba09e8bfa 602 break;
hosei2 0:db1ba09e8bfa 603
hosei2 0:db1ba09e8bfa 604 case Endpoint::DataQueued:
hosei2 0:db1ba09e8bfa 605 if (endpoint->TDHead.CurrBufPtr)
hosei2 0:db1ba09e8bfa 606 endpoint->Length = endpoint->TDHead.CurrBufPtr - (u32)endpoint->Data;
hosei2 0:db1ba09e8bfa 607
hosei2 0:db1ba09e8bfa 608 if (ep == 0)
hosei2 0:db1ba09e8bfa 609 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Data is done, now Status, Control only
hosei2 0:db1ba09e8bfa 610 else
hosei2 0:db1ba09e8bfa 611 endpoint->CurrentState = Endpoint::Idle;
hosei2 0:db1ba09e8bfa 612 break;
hosei2 0:db1ba09e8bfa 613
hosei2 0:db1ba09e8bfa 614 case Endpoint::StatusQueued: // Transaction is done
hosei2 0:db1ba09e8bfa 615 endpoint->CurrentState = Endpoint::Idle;
hosei2 0:db1ba09e8bfa 616 break;
hosei2 0:db1ba09e8bfa 617 }
hosei2 0:db1ba09e8bfa 618 }
hosei2 0:db1ba09e8bfa 619
hosei2 0:db1ba09e8bfa 620 // Complete, flag if we need a callback
hosei2 0:db1ba09e8bfa 621 if (endpoint->Callback && endpoint->CurrentState == Endpoint::Idle)
hosei2 0:db1ba09e8bfa 622 {
hosei2 0:db1ba09e8bfa 623 endpoint->CurrentState = Endpoint::CallbackPending;
hosei2 0:db1ba09e8bfa 624 _callbacksPending++;
hosei2 0:db1ba09e8bfa 625 }
hosei2 0:db1ba09e8bfa 626 }
hosei2 0:db1ba09e8bfa 627 }
hosei2 0:db1ba09e8bfa 628
hosei2 0:db1ba09e8bfa 629 // Hack to reset devices that don't want to connect
hosei2 0:db1ba09e8bfa 630 int AddDevice(int hub, int port, bool isLowSpeed)
hosei2 0:db1ba09e8bfa 631 {
hosei2 0:db1ba09e8bfa 632 int device = AddDeviceCore(hub,port,isLowSpeed);
hosei2 0:db1ba09e8bfa 633 if (device < 0)
hosei2 0:db1ba09e8bfa 634 {
hosei2 0:db1ba09e8bfa 635 LOG("========RETRY ADD DEVICE========\n"); // This will go for ever.. TODO power cycle root?
hosei2 0:db1ba09e8bfa 636 Disconnect(hub,port); // Could not read descriptor at assigned address, reset this port and try again
hosei2 0:db1ba09e8bfa 637 ResetPort(hub,port); // Cheap bluetooth dongles often need this on a hotplug
hosei2 0:db1ba09e8bfa 638 return -1;
hosei2 0:db1ba09e8bfa 639 }
hosei2 0:db1ba09e8bfa 640 return device;
hosei2 0:db1ba09e8bfa 641 }
hosei2 0:db1ba09e8bfa 642
hosei2 0:db1ba09e8bfa 643 int AddDeviceCore(int hub, int port, bool isLowSpeed)
hosei2 0:db1ba09e8bfa 644 {
hosei2 0:db1ba09e8bfa 645 int lowSpeed = isLowSpeed ? 0x2000 : 0;
hosei2 0:db1ba09e8bfa 646 DeviceDescriptor desc;
hosei2 0:db1ba09e8bfa 647 EndpointZero.EndpointDescriptor.Control = (8 << 16) | lowSpeed; // MaxPacketSize == 8
hosei2 0:db1ba09e8bfa 648 int r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,8);
hosei2 0:db1ba09e8bfa 649 if (r < 0)
hosei2 0:db1ba09e8bfa 650 {
hosei2 0:db1ba09e8bfa 651 LOG("FAILED TO LOAD DESCRIPTOR FOR DEVICE 0\n");
hosei2 0:db1ba09e8bfa 652 return r;
hosei2 0:db1ba09e8bfa 653 }
hosei2 0:db1ba09e8bfa 654
hosei2 0:db1ba09e8bfa 655 EndpointZero.EndpointDescriptor.Control = (desc.bMaxPacketSize << 16) | lowSpeed; // Actual MaxPacketSize
hosei2 0:db1ba09e8bfa 656 r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
hosei2 0:db1ba09e8bfa 657 if (r < 0)
hosei2 0:db1ba09e8bfa 658 return r;
hosei2 0:db1ba09e8bfa 659
hosei2 0:db1ba09e8bfa 660 LOG("\nClass %02X found %04X:%04X\n\n",desc.bDeviceClass,desc.idVendor,desc.idProduct);
hosei2 0:db1ba09e8bfa 661
hosei2 0:db1ba09e8bfa 662 // Now assign the device an address, move off EndpointZero
hosei2 0:db1ba09e8bfa 663 int device = 0;
hosei2 0:db1ba09e8bfa 664 for (int i = 0; i < MAX_DEVICES; i++)
hosei2 0:db1ba09e8bfa 665 {
hosei2 0:db1ba09e8bfa 666 if (Devices[i].Port == 0)
hosei2 0:db1ba09e8bfa 667 {
hosei2 0:db1ba09e8bfa 668 device = i+1;
hosei2 0:db1ba09e8bfa 669 break;
hosei2 0:db1ba09e8bfa 670 }
hosei2 0:db1ba09e8bfa 671 }
hosei2 0:db1ba09e8bfa 672 if (!device)
hosei2 0:db1ba09e8bfa 673 return ERR_DEVICE_NONE_LEFT;
hosei2 0:db1ba09e8bfa 674
hosei2 0:db1ba09e8bfa 675 r = SetAddress(0,device);
hosei2 0:db1ba09e8bfa 676 if (r)
hosei2 0:db1ba09e8bfa 677 return r;
hosei2 0:db1ba09e8bfa 678 DelayMS(2);
hosei2 0:db1ba09e8bfa 679
hosei2 0:db1ba09e8bfa 680 // Now at a nonzero address, create control endpoint
hosei2 0:db1ba09e8bfa 681 Device* dev = &Devices[device-1];
hosei2 0:db1ba09e8bfa 682 dev->Init(&desc,hub,port,device,lowSpeed);
hosei2 0:db1ba09e8bfa 683 AddEndpoint(device,0,ENDPOINT_CONTROL,desc.bMaxPacketSize,0);
hosei2 0:db1ba09e8bfa 684 _connectPending = 0;
hosei2 0:db1ba09e8bfa 685
hosei2 0:db1ba09e8bfa 686 // Verify this all works
hosei2 0:db1ba09e8bfa 687 r = GetDescriptor(device,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
hosei2 0:db1ba09e8bfa 688 if (r < 0)
hosei2 0:db1ba09e8bfa 689 return r;
hosei2 0:db1ba09e8bfa 690
hosei2 0:db1ba09e8bfa 691 // Set to interface 0 by default
hosei2 0:db1ba09e8bfa 692 // Calls LoadDevice if interface is found
hosei2 0:db1ba09e8bfa 693 r = SetConfigurationAndInterface(device,1,0,&desc);
hosei2 0:db1ba09e8bfa 694
hosei2 0:db1ba09e8bfa 695 if (desc.bDeviceClass == CLASS_HUB)
hosei2 0:db1ba09e8bfa 696 InitHub(device); // Handle hubs in this code
hosei2 0:db1ba09e8bfa 697
hosei2 0:db1ba09e8bfa 698 return device;
hosei2 0:db1ba09e8bfa 699 }
hosei2 0:db1ba09e8bfa 700
hosei2 0:db1ba09e8bfa 701 // Walk descriptors and create endpoints for a given device
hosei2 0:db1ba09e8bfa 702 // TODO configuration !=1, alternate settings etc.
hosei2 0:db1ba09e8bfa 703 int SetConfigurationAndInterface(int device, int configuration, int interfaceNumber, DeviceDescriptor* desc)
hosei2 0:db1ba09e8bfa 704 {
hosei2 0:db1ba09e8bfa 705 u8 buffer[255];
hosei2 0:db1ba09e8bfa 706 int err = GetDescriptor(device,DESCRIPTOR_TYPE_CONFIGURATION,0,buffer,sizeof(buffer));
hosei2 0:db1ba09e8bfa 707 if (err < 0)
hosei2 0:db1ba09e8bfa 708 return err;
hosei2 0:db1ba09e8bfa 709
hosei2 0:db1ba09e8bfa 710 err = SetConfiguration(device,configuration);
hosei2 0:db1ba09e8bfa 711 if (err < 0)
hosei2 0:db1ba09e8bfa 712 return err;
hosei2 0:db1ba09e8bfa 713
hosei2 0:db1ba09e8bfa 714 // Add the endpoints for this interface
hosei2 0:db1ba09e8bfa 715 int len = buffer[2] | (buffer[3] << 8);
hosei2 0:db1ba09e8bfa 716 u8* d = buffer;
hosei2 0:db1ba09e8bfa 717 u8* end = d + len;
hosei2 0:db1ba09e8bfa 718 InterfaceDescriptor* found = 0;
hosei2 0:db1ba09e8bfa 719 while (d < end)
hosei2 0:db1ba09e8bfa 720 {
hosei2 0:db1ba09e8bfa 721 if (d[1] == DESCRIPTOR_TYPE_INTERFACE)
hosei2 0:db1ba09e8bfa 722 {
hosei2 0:db1ba09e8bfa 723 InterfaceDescriptor* id = (InterfaceDescriptor*)d;
hosei2 0:db1ba09e8bfa 724 if (id->bInterfaceNumber == interfaceNumber)
hosei2 0:db1ba09e8bfa 725 {
hosei2 0:db1ba09e8bfa 726 found = id;
hosei2 0:db1ba09e8bfa 727 d += d[0];
hosei2 0:db1ba09e8bfa 728 while (d < end && d[1] != DESCRIPTOR_TYPE_INTERFACE)
hosei2 0:db1ba09e8bfa 729 {
hosei2 0:db1ba09e8bfa 730 switch (d[1])
hosei2 0:db1ba09e8bfa 731 {
hosei2 0:db1ba09e8bfa 732 case DESCRIPTOR_TYPE_ENDPOINT:
hosei2 0:db1ba09e8bfa 733 AddEndpoint(device,(EndpointDescriptor*)d);
hosei2 0:db1ba09e8bfa 734 break;
hosei2 0:db1ba09e8bfa 735 default:
hosei2 0:db1ba09e8bfa 736 LOG("Skipping descriptor %02X (%d bytes)\n",d[1],d[0]);
hosei2 0:db1ba09e8bfa 737 }
hosei2 0:db1ba09e8bfa 738 d += d[0];
hosei2 0:db1ba09e8bfa 739 }
hosei2 0:db1ba09e8bfa 740 }
hosei2 0:db1ba09e8bfa 741 }
hosei2 0:db1ba09e8bfa 742 d += d[0];
hosei2 0:db1ba09e8bfa 743 }
hosei2 0:db1ba09e8bfa 744
hosei2 0:db1ba09e8bfa 745 if (!found)
hosei2 0:db1ba09e8bfa 746 return ERR_INTERFACE_NOT_FOUND;
hosei2 0:db1ba09e8bfa 747 OnLoadDevice(device,desc,found);
hosei2 0:db1ba09e8bfa 748 return 0;
hosei2 0:db1ba09e8bfa 749 }
hosei2 0:db1ba09e8bfa 750
hosei2 0:db1ba09e8bfa 751 void Init()
hosei2 0:db1ba09e8bfa 752 {
hosei2 0:db1ba09e8bfa 753 LOG("USB INIT (Controller is %d bytes)\n",sizeof(*this));
hosei2 0:db1ba09e8bfa 754 memset(this,0,sizeof(HostController));
hosei2 0:db1ba09e8bfa 755 EndpointZero.CurrentState = Endpoint::NotQueued;
hosei2 0:db1ba09e8bfa 756 HWInit(&CommunicationArea);
hosei2 0:db1ba09e8bfa 757 DelayMS(10);
hosei2 0:db1ba09e8bfa 758 }
hosei2 0:db1ba09e8bfa 759
hosei2 0:db1ba09e8bfa 760 void ResetPort(int hub, int port)
hosei2 0:db1ba09e8bfa 761 {
hosei2 0:db1ba09e8bfa 762 LOG("ResetPort Hub:%d Port:%d\n",hub,port);
hosei2 0:db1ba09e8bfa 763 _connectPending++; // Only reset/add 1 device at a time
hosei2 0:db1ba09e8bfa 764 if (hub == 0)
hosei2 0:db1ba09e8bfa 765 LPC_USB->HcRhPortStatus1 = PortResetStatus; // Reset Root Hub, port 1
hosei2 0:db1ba09e8bfa 766 else
hosei2 0:db1ba09e8bfa 767 SetPortReset(hub,port); // or reset other hub
hosei2 0:db1ba09e8bfa 768 }
hosei2 0:db1ba09e8bfa 769
hosei2 0:db1ba09e8bfa 770 void Disconnect(int hub, int port)
hosei2 0:db1ba09e8bfa 771 {
hosei2 0:db1ba09e8bfa 772 LOG("Disconnect Hub:%d Port:%d\n",hub,port); // Mark a device for destruction
hosei2 0:db1ba09e8bfa 773 for (int i = 0; i < MAX_DEVICES; i++)
hosei2 0:db1ba09e8bfa 774 {
hosei2 0:db1ba09e8bfa 775 Device* dev = Devices + i;
hosei2 0:db1ba09e8bfa 776 if (dev->Port == port && dev->Hub == hub)
hosei2 0:db1ba09e8bfa 777 {
hosei2 0:db1ba09e8bfa 778 // Disconnect everything that is attached to this device if it is a hub
hosei2 0:db1ba09e8bfa 779 for (int p = 0; p < dev->HubPortCount; p++)
hosei2 0:db1ba09e8bfa 780 Disconnect(i+1,p+1);
hosei2 0:db1ba09e8bfa 781
hosei2 0:db1ba09e8bfa 782 // Now release endpoints
hosei2 0:db1ba09e8bfa 783 for (int j = 1; j < MAX_ENDPOINTS_PER_DEVICE*2; j += 2)
hosei2 0:db1ba09e8bfa 784 {
hosei2 0:db1ba09e8bfa 785 u8 endpointIndex = dev->_endpointMap[j];
hosei2 0:db1ba09e8bfa 786 if (endpointIndex != 0xFF)
hosei2 0:db1ba09e8bfa 787 Release(Endpoints + endpointIndex);
hosei2 0:db1ba09e8bfa 788 }
hosei2 0:db1ba09e8bfa 789 dev->Port = 0; // Device is now free
hosei2 0:db1ba09e8bfa 790 dev->Flags = 0;
hosei2 0:db1ba09e8bfa 791 return;
hosei2 0:db1ba09e8bfa 792 }
hosei2 0:db1ba09e8bfa 793 }
hosei2 0:db1ba09e8bfa 794 }
hosei2 0:db1ba09e8bfa 795
hosei2 0:db1ba09e8bfa 796 // called after reset
hosei2 0:db1ba09e8bfa 797 void Connect(int hub, int port, bool lowspeed)
hosei2 0:db1ba09e8bfa 798 {
hosei2 0:db1ba09e8bfa 799 LOG("Connect Hub:%d Port:%d %s\n",hub,port,lowspeed ? "slow" : "full");
hosei2 0:db1ba09e8bfa 800 AddDevice(hub,port,lowspeed);
hosei2 0:db1ba09e8bfa 801 }
hosei2 0:db1ba09e8bfa 802
hosei2 0:db1ba09e8bfa 803 // Called from interrupt
hosei2 0:db1ba09e8bfa 804 void HubStatusChange(int hub, int port, u32 status)
hosei2 0:db1ba09e8bfa 805 {
hosei2 0:db1ba09e8bfa 806 LOG("HubStatusChange Hub:%d Port:%d %08X\n",hub,port,status);
hosei2 0:db1ba09e8bfa 807 if (status & ConnectStatusChange)
hosei2 0:db1ba09e8bfa 808 {
hosei2 0:db1ba09e8bfa 809 if (status & CurrentConnectStatus) // Connecting
hosei2 0:db1ba09e8bfa 810 ResetPort(hub,port); // Reset to initiate connect (state machine?)
hosei2 0:db1ba09e8bfa 811 else
hosei2 0:db1ba09e8bfa 812 Disconnect(hub,port);
hosei2 0:db1ba09e8bfa 813 }
hosei2 0:db1ba09e8bfa 814
hosei2 0:db1ba09e8bfa 815 if (status & PortResetStatusChange)
hosei2 0:db1ba09e8bfa 816 {
hosei2 0:db1ba09e8bfa 817 if (!(status & PortResetStatus))
hosei2 0:db1ba09e8bfa 818 {
hosei2 0:db1ba09e8bfa 819 _connectCountdown = 200; // Schedule a connection in 200ms
hosei2 0:db1ba09e8bfa 820 if (status & LowspeedDevice)
hosei2 0:db1ba09e8bfa 821 port |= 0x80;
hosei2 0:db1ba09e8bfa 822 _connectHub = hub;
hosei2 0:db1ba09e8bfa 823 _connectPort = port;
hosei2 0:db1ba09e8bfa 824 }
hosei2 0:db1ba09e8bfa 825 }
hosei2 0:db1ba09e8bfa 826 }
hosei2 0:db1ba09e8bfa 827
hosei2 0:db1ba09e8bfa 828 #define HOST_CLK_EN (1<<0)
hosei2 0:db1ba09e8bfa 829 #define PORTSEL_CLK_EN (1<<3)
hosei2 0:db1ba09e8bfa 830 #define AHB_CLK_EN (1<<4)
hosei2 0:db1ba09e8bfa 831 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
hosei2 0:db1ba09e8bfa 832
hosei2 0:db1ba09e8bfa 833 #define FRAMEINTERVAL (12000-1) // 1ms
hosei2 0:db1ba09e8bfa 834 #define DEFAULT_FMINTERVAL ((((6 * (FRAMEINTERVAL - 210)) / 7) << 16) | FRAMEINTERVAL)
hosei2 0:db1ba09e8bfa 835
hosei2 0:db1ba09e8bfa 836 void DelayMS(int ms)
hosei2 0:db1ba09e8bfa 837 {
hosei2 0:db1ba09e8bfa 838 u16 f = ms + CommunicationArea.FrameNumber;
hosei2 0:db1ba09e8bfa 839 while (f != CommunicationArea.FrameNumber)
hosei2 0:db1ba09e8bfa 840 ;
hosei2 0:db1ba09e8bfa 841 }
hosei2 0:db1ba09e8bfa 842
hosei2 0:db1ba09e8bfa 843 static void HWInit(HCCA* cca)
hosei2 0:db1ba09e8bfa 844 {
hosei2 0:db1ba09e8bfa 845 NVIC_DisableIRQ(USB_IRQn);
hosei2 0:db1ba09e8bfa 846
hosei2 0:db1ba09e8bfa 847 // turn on power for USB
hosei2 0:db1ba09e8bfa 848 LPC_SC->PCONP |= (1UL<<31);
hosei2 0:db1ba09e8bfa 849 // Enable USB host clock, port selection and AHB clock
hosei2 0:db1ba09e8bfa 850 LPC_USB->USBClkCtrl |= CLOCK_MASK;
hosei2 0:db1ba09e8bfa 851 // Wait for clocks to become available
hosei2 0:db1ba09e8bfa 852 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
hosei2 0:db1ba09e8bfa 853 ;
hosei2 0:db1ba09e8bfa 854
hosei2 0:db1ba09e8bfa 855 // We are a Host
hosei2 0:db1ba09e8bfa 856 LPC_USB->OTGStCtrl |= 1;
hosei2 0:db1ba09e8bfa 857 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN; // we don't need port selection clock until we do OTG
hosei2 0:db1ba09e8bfa 858
hosei2 0:db1ba09e8bfa 859 // configure USB pins
hosei2 0:db1ba09e8bfa 860 LPC_PINCON->PINSEL1 &= ~((3<<26)|(3<<28));
hosei2 0:db1ba09e8bfa 861 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // USB D+/D-
hosei2 0:db1ba09e8bfa 862
hosei2 0:db1ba09e8bfa 863 LPC_PINCON->PINSEL3 &= ~((3 << 6) | (3 << 22)); // USB_PPWR, USB_OVRCR
hosei2 0:db1ba09e8bfa 864 LPC_PINCON->PINSEL3 |= ((2 << 6) | (2 << 22));
hosei2 0:db1ba09e8bfa 865
hosei2 0:db1ba09e8bfa 866 LPC_PINCON->PINSEL4 &= ~(3 << 18); // USB_CONNECT
hosei2 0:db1ba09e8bfa 867 LPC_PINCON->PINSEL4 |= (1 << 18);
hosei2 0:db1ba09e8bfa 868
hosei2 0:db1ba09e8bfa 869 // Reset OHCI block
hosei2 0:db1ba09e8bfa 870 LPC_USB->HcControl = 0;
hosei2 0:db1ba09e8bfa 871 LPC_USB->HcControlHeadED = 0;
hosei2 0:db1ba09e8bfa 872 LPC_USB->HcBulkHeadED = 0;
hosei2 0:db1ba09e8bfa 873
hosei2 0:db1ba09e8bfa 874 LPC_USB->HcCommandStatus = HostControllerReset;
hosei2 0:db1ba09e8bfa 875 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL;
hosei2 0:db1ba09e8bfa 876 LPC_USB->HcPeriodicStart = FRAMEINTERVAL*90/100;
hosei2 0:db1ba09e8bfa 877
hosei2 0:db1ba09e8bfa 878 LPC_USB->HcControl = (LPC_USB->HcControl & (~HostControllerFunctionalState)) | OperationalMask;
hosei2 0:db1ba09e8bfa 879 LPC_USB->HcRhStatus = SetGlobalPower;
hosei2 0:db1ba09e8bfa 880
hosei2 0:db1ba09e8bfa 881 LPC_USB->HcHCCA = (u32)cca;
hosei2 0:db1ba09e8bfa 882 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus;
hosei2 0:db1ba09e8bfa 883 LPC_USB->HcInterruptEnable = MasterInterruptEnable | WritebackDoneHead | RootHubStatusChange | FrameNumberOverflow;
hosei2 0:db1ba09e8bfa 884
hosei2 0:db1ba09e8bfa 885 NVIC_SetPriority(USB_IRQn, 0);
hosei2 0:db1ba09e8bfa 886 NVIC_EnableIRQ(USB_IRQn);
hosei2 0:db1ba09e8bfa 887 while (cca->FrameNumber < 10)
hosei2 0:db1ba09e8bfa 888 ; // 10ms delay before diving in
hosei2 0:db1ba09e8bfa 889 }
hosei2 0:db1ba09e8bfa 890 };
hosei2 0:db1ba09e8bfa 891
hosei2 0:db1ba09e8bfa 892 //====================================================================================
hosei2 0:db1ba09e8bfa 893 //====================================================================================
hosei2 0:db1ba09e8bfa 894 // Host controller instance and Interrupt handler
hosei2 0:db1ba09e8bfa 895
hosei2 0:db1ba09e8bfa 896 static HostController _controller __attribute__((at(USB_RAM_BASE)));
hosei2 0:db1ba09e8bfa 897
hosei2 0:db1ba09e8bfa 898 extern "C" void USB_IRQHandler(void) __irq;
hosei2 0:db1ba09e8bfa 899 void USB_IRQHandler (void) __irq
hosei2 0:db1ba09e8bfa 900 {
hosei2 0:db1ba09e8bfa 901 u32 int_status = LPC_USB->HcInterruptStatus;
hosei2 0:db1ba09e8bfa 902
hosei2 0:db1ba09e8bfa 903 if (int_status & RootHubStatusChange) // Root hub status change
hosei2 0:db1ba09e8bfa 904 _controller._rootHubStatusChange++; // Just flag the controller, will be processed in USBLoop
hosei2 0:db1ba09e8bfa 905
hosei2 0:db1ba09e8bfa 906 u32 head = 0;
hosei2 0:db1ba09e8bfa 907 if (int_status & WritebackDoneHead)
hosei2 0:db1ba09e8bfa 908 {
hosei2 0:db1ba09e8bfa 909 head = _controller.CommunicationArea.DoneHead; // Writeback Done
hosei2 0:db1ba09e8bfa 910 _controller.CommunicationArea.DoneHead = 0;
hosei2 0:db1ba09e8bfa 911 }
hosei2 0:db1ba09e8bfa 912 LPC_USB->HcInterruptStatus = int_status;
hosei2 0:db1ba09e8bfa 913
hosei2 0:db1ba09e8bfa 914 if (head)
hosei2 0:db1ba09e8bfa 915 _controller.ProcessDoneQueue(head); // TODO - low bit can be set BUGBUG
hosei2 0:db1ba09e8bfa 916 }
hosei2 0:db1ba09e8bfa 917
hosei2 0:db1ba09e8bfa 918 //====================================================================================
hosei2 0:db1ba09e8bfa 919 //====================================================================================
hosei2 0:db1ba09e8bfa 920 // API Methods
hosei2 0:db1ba09e8bfa 921
hosei2 0:db1ba09e8bfa 922 void USBInit()
hosei2 0:db1ba09e8bfa 923 {
hosei2 0:db1ba09e8bfa 924 return _controller.Init();
hosei2 0:db1ba09e8bfa 925 }
hosei2 0:db1ba09e8bfa 926
hosei2 0:db1ba09e8bfa 927 void USBLoop()
hosei2 0:db1ba09e8bfa 928 {
hosei2 0:db1ba09e8bfa 929 return _controller.Loop();
hosei2 0:db1ba09e8bfa 930 }
hosei2 0:db1ba09e8bfa 931
hosei2 0:db1ba09e8bfa 932 u8* USBGetBuffer(u32* len)
hosei2 0:db1ba09e8bfa 933 {
hosei2 0:db1ba09e8bfa 934 *len = USB_RAM_SIZE - sizeof(HostController);
hosei2 0:db1ba09e8bfa 935 return _controller.SRAM;
hosei2 0:db1ba09e8bfa 936 }
hosei2 0:db1ba09e8bfa 937
hosei2 0:db1ba09e8bfa 938 static Setup* GetSetup(int device)
hosei2 0:db1ba09e8bfa 939 {
hosei2 0:db1ba09e8bfa 940 if (device == 0)
hosei2 0:db1ba09e8bfa 941 return &_controller._setupZero;
hosei2 0:db1ba09e8bfa 942
hosei2 0:db1ba09e8bfa 943 if (device < 1 || device > MAX_DEVICES)
hosei2 0:db1ba09e8bfa 944 return 0;
hosei2 0:db1ba09e8bfa 945 return &_controller.Devices[device-1].SetupBuffer;
hosei2 0:db1ba09e8bfa 946 }
hosei2 0:db1ba09e8bfa 947
hosei2 0:db1ba09e8bfa 948 // Loop until IO on endpoint is complete
hosei2 0:db1ba09e8bfa 949 static int WaitIODone(Endpoint* endpoint)
hosei2 0:db1ba09e8bfa 950 {
hosei2 0:db1ba09e8bfa 951 if (endpoint->CurrentState == Endpoint::NotQueued)
hosei2 0:db1ba09e8bfa 952 return 0;
hosei2 0:db1ba09e8bfa 953 while (endpoint->CurrentState != Endpoint::Idle)
hosei2 0:db1ba09e8bfa 954 USBLoop(); // May generate callbacks, mount or unmount devices etc
hosei2 0:db1ba09e8bfa 955 int status = endpoint->Status();
hosei2 0:db1ba09e8bfa 956 if (status == 0)
hosei2 0:db1ba09e8bfa 957 return endpoint->Length;
hosei2 0:db1ba09e8bfa 958 return -status;
hosei2 0:db1ba09e8bfa 959 }
hosei2 0:db1ba09e8bfa 960
hosei2 0:db1ba09e8bfa 961 int USBTransfer(int device, int ep, u8 flags, u8* data, int length, USBCallback callback, void* userData)
hosei2 0:db1ba09e8bfa 962 {
hosei2 0:db1ba09e8bfa 963 Endpoint* endpoint = _controller.GetEndpoint(device,ep);
hosei2 0:db1ba09e8bfa 964 if (!endpoint)
hosei2 0:db1ba09e8bfa 965 return ERR_ENDPOINT_NOT_FOUND;
hosei2 0:db1ba09e8bfa 966
hosei2 0:db1ba09e8bfa 967 WaitIODone(endpoint);
hosei2 0:db1ba09e8bfa 968 endpoint->Flags = flags;
hosei2 0:db1ba09e8bfa 969 endpoint->Data = data;
hosei2 0:db1ba09e8bfa 970 endpoint->Length = length;
hosei2 0:db1ba09e8bfa 971 endpoint->Callback = callback;
hosei2 0:db1ba09e8bfa 972 endpoint->UserData = userData;
hosei2 0:db1ba09e8bfa 973 if (ep == 0)
hosei2 0:db1ba09e8bfa 974 _controller.Transfer(endpoint,TOKEN_SETUP,(u8*)GetSetup(device),8,Endpoint::SetupQueued);
hosei2 0:db1ba09e8bfa 975 else
hosei2 0:db1ba09e8bfa 976 _controller.Transfer(endpoint,flags & 0x80 ? TOKEN_IN : TOKEN_OUT,data,length,Endpoint::DataQueued);
hosei2 0:db1ba09e8bfa 977 if (callback)
hosei2 0:db1ba09e8bfa 978 return IO_PENDING;
hosei2 0:db1ba09e8bfa 979 return WaitIODone(endpoint);
hosei2 0:db1ba09e8bfa 980 }
hosei2 0:db1ba09e8bfa 981
hosei2 0:db1ba09e8bfa 982 int USBControlTransfer(int device, int request_type, int request, int value, int index, u8* data, int length, USBCallback callback, void * userData)
hosei2 0:db1ba09e8bfa 983 {
hosei2 0:db1ba09e8bfa 984 Setup* setup = GetSetup(device);
hosei2 0:db1ba09e8bfa 985 if (!setup)
hosei2 0:db1ba09e8bfa 986 return ERR_DEVICE_NOT_FOUND;
hosei2 0:db1ba09e8bfa 987
hosei2 0:db1ba09e8bfa 988 // Async control calls may overwrite setup buffer of previous call, so we need to wait before setting up next call
hosei2 0:db1ba09e8bfa 989 WaitIODone(_controller.GetEndpoint(device,0));
hosei2 0:db1ba09e8bfa 990
hosei2 0:db1ba09e8bfa 991 setup->bm_request_type = request_type;
hosei2 0:db1ba09e8bfa 992 setup->b_request = request;
hosei2 0:db1ba09e8bfa 993 setup->w_value = value;
hosei2 0:db1ba09e8bfa 994 setup->w_index = index;
hosei2 0:db1ba09e8bfa 995 setup->w_length = length;
hosei2 0:db1ba09e8bfa 996 return USBTransfer(device,0,request_type & DEVICE_TO_HOST,data,length,callback,userData);
hosei2 0:db1ba09e8bfa 997 }
hosei2 0:db1ba09e8bfa 998
hosei2 0:db1ba09e8bfa 999 int USBInterruptTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
hosei2 0:db1ba09e8bfa 1000 {
hosei2 0:db1ba09e8bfa 1001 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_INTERRUPT,data,length,callback,userData);
hosei2 0:db1ba09e8bfa 1002 }
hosei2 0:db1ba09e8bfa 1003
hosei2 0:db1ba09e8bfa 1004 int USBBulkTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
hosei2 0:db1ba09e8bfa 1005 {
hosei2 0:db1ba09e8bfa 1006 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_BULK,data,length,callback,userData);
hosei2 0:db1ba09e8bfa 1007 }
hosei2 0:db1ba09e8bfa 1008
hosei2 0:db1ba09e8bfa 1009 int GetDescriptor(int device, int descType,int descIndex, u8* data, int length)
hosei2 0:db1ba09e8bfa 1010 {
hosei2 0:db1ba09e8bfa 1011 return USBControlTransfer(device,DEVICE_TO_HOST | RECIPIENT_DEVICE, GET_DESCRIPTOR,(descType << 8)|(descIndex), 0, data, length, 0);
hosei2 0:db1ba09e8bfa 1012 }
hosei2 0:db1ba09e8bfa 1013
hosei2 0:db1ba09e8bfa 1014 int GetString(int device, int index, char* dst, int length)
hosei2 0:db1ba09e8bfa 1015 {
hosei2 0:db1ba09e8bfa 1016 u8 buffer[255];
hosei2 0:db1ba09e8bfa 1017 int le = GetDescriptor(device,DESCRIPTOR_TYPE_STRING,index,buffer,sizeof(buffer));
hosei2 0:db1ba09e8bfa 1018 if (le < 0)
hosei2 0:db1ba09e8bfa 1019 return le;
hosei2 0:db1ba09e8bfa 1020 if (length < 1)
hosei2 0:db1ba09e8bfa 1021 return -1;
hosei2 0:db1ba09e8bfa 1022 length <<= 1;
hosei2 0:db1ba09e8bfa 1023 if (le > length)
hosei2 0:db1ba09e8bfa 1024 le = length;
hosei2 0:db1ba09e8bfa 1025 for (int j = 2; j < le; j += 2)
hosei2 0:db1ba09e8bfa 1026 *dst++ = buffer[j];
hosei2 0:db1ba09e8bfa 1027 *dst = 0;
hosei2 0:db1ba09e8bfa 1028 return (le>>1)-1;
hosei2 0:db1ba09e8bfa 1029 }
hosei2 0:db1ba09e8bfa 1030
hosei2 0:db1ba09e8bfa 1031 int SetAddress(int device, int new_addr)
hosei2 0:db1ba09e8bfa 1032 {
hosei2 0:db1ba09e8bfa 1033 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_ADDRESS, new_addr, 0, 0, 0, 0);
hosei2 0:db1ba09e8bfa 1034 }
hosei2 0:db1ba09e8bfa 1035
hosei2 0:db1ba09e8bfa 1036 int SetConfiguration(int device, int configNum)
hosei2 0:db1ba09e8bfa 1037 {
hosei2 0:db1ba09e8bfa 1038 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_CONFIGURATION, configNum, 0, 0, 0, 0);
hosei2 0:db1ba09e8bfa 1039 }
hosei2 0:db1ba09e8bfa 1040
hosei2 0:db1ba09e8bfa 1041 int SetInterface(int device, int ifNum, int altNum)
hosei2 0:db1ba09e8bfa 1042 {
hosei2 0:db1ba09e8bfa 1043 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_INTERFACE, SET_INTERFACE, altNum, ifNum, 0, 0, 0);
hosei2 0:db1ba09e8bfa 1044 }
hosei2 0:db1ba09e8bfa 1045
hosei2 0:db1ba09e8bfa 1046 // HUB stuff
hosei2 0:db1ba09e8bfa 1047 int SetPortFeature(int device, int feature, int index)
hosei2 0:db1ba09e8bfa 1048 {
hosei2 0:db1ba09e8bfa 1049 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,SET_FEATURE,feature,index,0,0);
hosei2 0:db1ba09e8bfa 1050 }
hosei2 0:db1ba09e8bfa 1051
hosei2 0:db1ba09e8bfa 1052 int ClearPortFeature(int device, int feature, int index)
hosei2 0:db1ba09e8bfa 1053 {
hosei2 0:db1ba09e8bfa 1054 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,CLEAR_FEATURE,feature,index,0,0);
hosei2 0:db1ba09e8bfa 1055 }
hosei2 0:db1ba09e8bfa 1056
hosei2 0:db1ba09e8bfa 1057 int SetPortPower(int device, int port)
hosei2 0:db1ba09e8bfa 1058 {
hosei2 0:db1ba09e8bfa 1059 int r = SetPortFeature(device,PORT_POWER,port);
hosei2 0:db1ba09e8bfa 1060 _controller.DelayMS(20); // 80ms to turn on a hubs power... DESCRIPTOR? todo
hosei2 0:db1ba09e8bfa 1061 return r;
hosei2 0:db1ba09e8bfa 1062 }
hosei2 0:db1ba09e8bfa 1063
hosei2 0:db1ba09e8bfa 1064 int SetPortReset(int device, int port)
hosei2 0:db1ba09e8bfa 1065 {
hosei2 0:db1ba09e8bfa 1066 return SetPortFeature(device,PORT_RESET,port);
hosei2 0:db1ba09e8bfa 1067 }
hosei2 0:db1ba09e8bfa 1068
hosei2 0:db1ba09e8bfa 1069 int GetPortStatus(int device, int port, u32* status)
hosei2 0:db1ba09e8bfa 1070 {
hosei2 0:db1ba09e8bfa 1071 return USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,GET_STATUS,0,port,(u8*)status,4);
hosei2 0:db1ba09e8bfa 1072 }