Giles Barton-Owen / AndroidAccessory

The modified AndroidAccessory Library

Dependents:   ADKTerm droidcycle uva_nc androidservo ... more

USBHost/USBHost_log.cpp@0:1151e4446dbc, 2011-08-01 (annotated)

Committer:
p07gbar
Date:
Mon Aug 01 09:51:55 2011 +0000
Revision:
0:1151e4446dbc
First publish

Who changed what in which revision?

UserRevisionLine numberNew contents of line
p07gbar 0:1151e4446dbc 1
p07gbar 0:1151e4446dbc 2 /*
p07gbar 0:1151e4446dbc 3 Copyright (c) 2010 Peter Barrett
p07gbar 0:1151e4446dbc 4
p07gbar 0:1151e4446dbc 5 Permission is hereby granted, free of charge, to any person obtaining a copy
p07gbar 0:1151e4446dbc 6 of this software and associated documentation files (the "Software"), to deal
p07gbar 0:1151e4446dbc 7 in the Software without restriction, including without limitation the rights
p07gbar 0:1151e4446dbc 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
p07gbar 0:1151e4446dbc 9 copies of the Software, and to permit persons to whom the Software is
p07gbar 0:1151e4446dbc 10 furnished to do so, subject to the following conditions:
p07gbar 0:1151e4446dbc 11
p07gbar 0:1151e4446dbc 12 The above copyright notice and this permission notice shall be included in
p07gbar 0:1151e4446dbc 13 all copies or substantial portions of the Software.
p07gbar 0:1151e4446dbc 14
p07gbar 0:1151e4446dbc 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
p07gbar 0:1151e4446dbc 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
p07gbar 0:1151e4446dbc 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
p07gbar 0:1151e4446dbc 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
p07gbar 0:1151e4446dbc 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
p07gbar 0:1151e4446dbc 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
p07gbar 0:1151e4446dbc 21 THE SOFTWARE.
p07gbar 0:1151e4446dbc 22 */
p07gbar 0:1151e4446dbc 23
p07gbar 0:1151e4446dbc 24
p07gbar 0:1151e4446dbc 25 #include "mbed.h"
p07gbar 0:1151e4446dbc 26 #include "USBHost.h"
p07gbar 0:1151e4446dbc 27 //#define USBHOST_LOG
p07gbar 0:1151e4446dbc 28 #ifdef USBHOST_LOG
p07gbar 0:1151e4446dbc 29
p07gbar 0:1151e4446dbc 30 // Config (default uses x bytes)
p07gbar 0:1151e4446dbc 31 #define MAX_DEVICES 8 // Max number of devices
p07gbar 0:1151e4446dbc 32 #define MAX_ENDPOINTS_TOTAL 16 // Max number of endpoints total
p07gbar 0:1151e4446dbc 33 #define MAX_ENDPOINTS_PER_DEVICE 8 // Max number of endpoints for any one device
p07gbar 0:1151e4446dbc 34
p07gbar 0:1151e4446dbc 35 //#define USBLOG 1
p07gbar 0:1151e4446dbc 36 #if USBLOG
p07gbar 0:1151e4446dbc 37 #define LOG(...) printf(__VA_ARGS__)
p07gbar 0:1151e4446dbc 38 #else
p07gbar 0:1151e4446dbc 39 #define LOG(...) do {} while(0)
p07gbar 0:1151e4446dbc 40 #endif
p07gbar 0:1151e4446dbc 41
p07gbar 0:1151e4446dbc 42 // USB host structures
p07gbar 0:1151e4446dbc 43
p07gbar 0:1151e4446dbc 44 #define USB_RAM_SIZE 16*1024 // AHB SRAM block 1 TODO MACHINE DEPENDENT
p07gbar 0:1151e4446dbc 45 #define USB_RAM_BASE 0x2007C000
p07gbar 0:1151e4446dbc 46
p07gbar 0:1151e4446dbc 47 #define TOKEN_SETUP 0
p07gbar 0:1151e4446dbc 48 #define TOKEN_IN 1
p07gbar 0:1151e4446dbc 49 #define TOKEN_OUT 2
p07gbar 0:1151e4446dbc 50
p07gbar 0:1151e4446dbc 51 // Status flags from hub
p07gbar 0:1151e4446dbc 52 #define PORT_CONNECTION 0
p07gbar 0:1151e4446dbc 53 #define PORT_ENABLE 1
p07gbar 0:1151e4446dbc 54 #define PORT_SUSPEND 2
p07gbar 0:1151e4446dbc 55 #define PORT_OVER_CURRENT 3
p07gbar 0:1151e4446dbc 56 #define PORT_RESET 4
p07gbar 0:1151e4446dbc 57 #define PORT_POWER 8
p07gbar 0:1151e4446dbc 58 #define PORT_LOW_SPEED 9
p07gbar 0:1151e4446dbc 59
p07gbar 0:1151e4446dbc 60 #define C_PORT_CONNECTION 16
p07gbar 0:1151e4446dbc 61 #define C_PORT_ENABLE 17
p07gbar 0:1151e4446dbc 62 #define C_PORT_SUSPEND 18
p07gbar 0:1151e4446dbc 63 #define C_PORT_OVER_CURRENT 19
p07gbar 0:1151e4446dbc 64 #define C_PORT_RESET 20
p07gbar 0:1151e4446dbc 65
p07gbar 0:1151e4446dbc 66 typedef struct {
p07gbar 0:1151e4446dbc 67 u8 bm_request_type;
p07gbar 0:1151e4446dbc 68 u8 b_request;
p07gbar 0:1151e4446dbc 69 u16 w_value;
p07gbar 0:1151e4446dbc 70 u16 w_index;
p07gbar 0:1151e4446dbc 71 u16 w_length;
p07gbar 0:1151e4446dbc 72 } Setup;
p07gbar 0:1151e4446dbc 73
p07gbar 0:1151e4446dbc 74
p07gbar 0:1151e4446dbc 75 // Hub stuff is kept private just to keep api simple
p07gbar 0:1151e4446dbc 76 int SetPortFeature(int device, int feature, int index);
p07gbar 0:1151e4446dbc 77 int ClearPortFeature(int device, int feature, int index);
p07gbar 0:1151e4446dbc 78 int SetPortPower(int device, int port);
p07gbar 0:1151e4446dbc 79 int SetPortReset(int device, int port);
p07gbar 0:1151e4446dbc 80 int GetPortStatus(int device, int port, u32* status);
p07gbar 0:1151e4446dbc 81
p07gbar 0:1151e4446dbc 82 //===================================================================
p07gbar 0:1151e4446dbc 83 //===================================================================
p07gbar 0:1151e4446dbc 84 // Hardware defines
p07gbar 0:1151e4446dbc 85
p07gbar 0:1151e4446dbc 86 // HcControl
p07gbar 0:1151e4446dbc 87 #define PeriodicListEnable 0x00000004
p07gbar 0:1151e4446dbc 88 #define IsochronousEnable 0x00000008
p07gbar 0:1151e4446dbc 89 #define ControlListEnable 0x00000010
p07gbar 0:1151e4446dbc 90 #define BulkListEnable 0x00000020
p07gbar 0:1151e4446dbc 91 #define OperationalMask 0x00000080
p07gbar 0:1151e4446dbc 92 #define HostControllerFunctionalState 0x000000C0
p07gbar 0:1151e4446dbc 93
p07gbar 0:1151e4446dbc 94 // HcCommandStatus
p07gbar 0:1151e4446dbc 95 #define HostControllerReset 0x00000001
p07gbar 0:1151e4446dbc 96 #define ControlListFilled 0x00000002
p07gbar 0:1151e4446dbc 97 #define BulkListFilled 0x00000004
p07gbar 0:1151e4446dbc 98
p07gbar 0:1151e4446dbc 99 // HcInterruptStatus Register
p07gbar 0:1151e4446dbc 100 #define WritebackDoneHead 0x00000002
p07gbar 0:1151e4446dbc 101 #define StartofFrame 0x00000004
p07gbar 0:1151e4446dbc 102 #define ResumeDetected 0x00000008
p07gbar 0:1151e4446dbc 103 #define UnrecoverableError 0x00000010
p07gbar 0:1151e4446dbc 104 #define FrameNumberOverflow 0x00000020
p07gbar 0:1151e4446dbc 105 #define RootHubStatusChange 0x00000040
p07gbar 0:1151e4446dbc 106 #define OwnershipChange 0x00000080
p07gbar 0:1151e4446dbc 107 #define MasterInterruptEnable 0x80000000
p07gbar 0:1151e4446dbc 108
p07gbar 0:1151e4446dbc 109 // HcRhStatus
p07gbar 0:1151e4446dbc 110 #define SetGlobalPower 0x00010000
p07gbar 0:1151e4446dbc 111 #define DeviceRemoteWakeupEnable 0x00008000
p07gbar 0:1151e4446dbc 112
p07gbar 0:1151e4446dbc 113 // HcRhPortStatus (hub 0, port 1)
p07gbar 0:1151e4446dbc 114 #define CurrentConnectStatus 0x00000001
p07gbar 0:1151e4446dbc 115 #define PortEnableStatus 0x00000002
p07gbar 0:1151e4446dbc 116 #define PortSuspendStatus 0x00000004
p07gbar 0:1151e4446dbc 117 #define PortOverCurrentIndicator 0x00000008
p07gbar 0:1151e4446dbc 118 #define PortResetStatus 0x00000010
p07gbar 0:1151e4446dbc 119
p07gbar 0:1151e4446dbc 120 #define PortPowerStatus 0x00000100
p07gbar 0:1151e4446dbc 121 #define LowspeedDevice 0x00000200
p07gbar 0:1151e4446dbc 122 #define HighspeedDevice 0x00000400
p07gbar 0:1151e4446dbc 123
p07gbar 0:1151e4446dbc 124 #define ConnectStatusChange (CurrentConnectStatus << 16)
p07gbar 0:1151e4446dbc 125 #define PortResetStatusChange (PortResetStatus << 16)
p07gbar 0:1151e4446dbc 126
p07gbar 0:1151e4446dbc 127
p07gbar 0:1151e4446dbc 128 #define TD_ROUNDING (u32)0x00040000
p07gbar 0:1151e4446dbc 129 #define TD_SETUP (u32)0x00000000
p07gbar 0:1151e4446dbc 130 #define TD_IN (u32)0x00100000
p07gbar 0:1151e4446dbc 131 #define TD_OUT (u32)0x00080000
p07gbar 0:1151e4446dbc 132 #define TD_DELAY_INT(x) (u32)((x) << 21)
p07gbar 0:1151e4446dbc 133 #define TD_TOGGLE_0 (u32)0x02000000
p07gbar 0:1151e4446dbc 134 #define TD_TOGGLE_1 (u32)0x03000000
p07gbar 0:1151e4446dbc 135 #define TD_CC (u32)0xF0000000
p07gbar 0:1151e4446dbc 136
p07gbar 0:1151e4446dbc 137 // HostController EndPoint Descriptor
p07gbar 0:1151e4446dbc 138 typedef struct {
p07gbar 0:1151e4446dbc 139 volatile u32 Control;
p07gbar 0:1151e4446dbc 140 volatile u32 TailTd;
p07gbar 0:1151e4446dbc 141 volatile u32 HeadTd;
p07gbar 0:1151e4446dbc 142 volatile u32 Next;
p07gbar 0:1151e4446dbc 143 } HCED;
p07gbar 0:1151e4446dbc 144
p07gbar 0:1151e4446dbc 145 // HostController Transfer Descriptor
p07gbar 0:1151e4446dbc 146 typedef struct {
p07gbar 0:1151e4446dbc 147 volatile u32 Control;
p07gbar 0:1151e4446dbc 148 volatile u32 CurrBufPtr;
p07gbar 0:1151e4446dbc 149 volatile u32 Next;
p07gbar 0:1151e4446dbc 150 volatile u32 BufEnd;
p07gbar 0:1151e4446dbc 151 } HCTD;
p07gbar 0:1151e4446dbc 152
p07gbar 0:1151e4446dbc 153 // Host Controller Communication Area
p07gbar 0:1151e4446dbc 154 typedef struct {
p07gbar 0:1151e4446dbc 155 volatile u32 InterruptTable[32];
p07gbar 0:1151e4446dbc 156 volatile u16 FrameNumber;
p07gbar 0:1151e4446dbc 157 volatile u16 FrameNumberPad;
p07gbar 0:1151e4446dbc 158 volatile u32 DoneHead;
p07gbar 0:1151e4446dbc 159 volatile u8 Reserved[120];
p07gbar 0:1151e4446dbc 160 } HCCA;
p07gbar 0:1151e4446dbc 161
p07gbar 0:1151e4446dbc 162 //====================================================================================
p07gbar 0:1151e4446dbc 163 //====================================================================================
p07gbar 0:1151e4446dbc 164
p07gbar 0:1151e4446dbc 165 class HostController;
p07gbar 0:1151e4446dbc 166 class Endpoint;
p07gbar 0:1151e4446dbc 167 class Device;
p07gbar 0:1151e4446dbc 168
p07gbar 0:1151e4446dbc 169 // must be 3*16 bytes long
p07gbar 0:1151e4446dbc 170 class Endpoint
p07gbar 0:1151e4446dbc 171 {
p07gbar 0:1151e4446dbc 172 public:
p07gbar 0:1151e4446dbc 173 HCED EndpointDescriptor; // Pointer to EndpointDescriptor == Pointer to Endpoint
p07gbar 0:1151e4446dbc 174 HCTD TDHead;
p07gbar 0:1151e4446dbc 175
p07gbar 0:1151e4446dbc 176 enum State
p07gbar 0:1151e4446dbc 177 {
p07gbar 0:1151e4446dbc 178 Free,
p07gbar 0:1151e4446dbc 179 NotQueued,
p07gbar 0:1151e4446dbc 180 Idle,
p07gbar 0:1151e4446dbc 181 SetupQueued,
p07gbar 0:1151e4446dbc 182 DataQueued,
p07gbar 0:1151e4446dbc 183 StatusQueued,
p07gbar 0:1151e4446dbc 184 CallbackPending
p07gbar 0:1151e4446dbc 185 };
p07gbar 0:1151e4446dbc 186
p07gbar 0:1151e4446dbc 187 volatile u8 CurrentState;
p07gbar 0:1151e4446dbc 188 u8 Flags; // 0x80 In, 0x03 mask endpoint type
p07gbar 0:1151e4446dbc 189
p07gbar 0:1151e4446dbc 190 u16 Length;
p07gbar 0:1151e4446dbc 191 u8* Data;
p07gbar 0:1151e4446dbc 192 USBCallback Callback; // Must be a multiple of 16 bytes long
p07gbar 0:1151e4446dbc 193 void* UserData;
p07gbar 0:1151e4446dbc 194
p07gbar 0:1151e4446dbc 195 int Address()
p07gbar 0:1151e4446dbc 196 {
p07gbar 0:1151e4446dbc 197 int ep = (EndpointDescriptor.Control >> 7) & 0xF;
p07gbar 0:1151e4446dbc 198 if (ep)
p07gbar 0:1151e4446dbc 199 ep |= Flags & 0x80;
p07gbar 0:1151e4446dbc 200 return ep;
p07gbar 0:1151e4446dbc 201 }
p07gbar 0:1151e4446dbc 202
p07gbar 0:1151e4446dbc 203 int Device()
p07gbar 0:1151e4446dbc 204 {
p07gbar 0:1151e4446dbc 205 return EndpointDescriptor.Control & 0x7F;
p07gbar 0:1151e4446dbc 206 }
p07gbar 0:1151e4446dbc 207
p07gbar 0:1151e4446dbc 208 int Status()
p07gbar 0:1151e4446dbc 209 {
p07gbar 0:1151e4446dbc 210 return (TDHead.Control >> 28) & 0xF;
p07gbar 0:1151e4446dbc 211 }
p07gbar 0:1151e4446dbc 212
p07gbar 0:1151e4446dbc 213 u32 Enqueue(u32 head)
p07gbar 0:1151e4446dbc 214 {
p07gbar 0:1151e4446dbc 215 if (CurrentState == NotQueued)
p07gbar 0:1151e4446dbc 216 {
p07gbar 0:1151e4446dbc 217 EndpointDescriptor.Next = head;
p07gbar 0:1151e4446dbc 218 head = (u32)&EndpointDescriptor;
p07gbar 0:1151e4446dbc 219 CurrentState = Idle;
p07gbar 0:1151e4446dbc 220 }
p07gbar 0:1151e4446dbc 221 return head;
p07gbar 0:1151e4446dbc 222 }
p07gbar 0:1151e4446dbc 223 };
p07gbar 0:1151e4446dbc 224
p07gbar 0:1151e4446dbc 225 class Device
p07gbar 0:1151e4446dbc 226 {
p07gbar 0:1151e4446dbc 227 public:
p07gbar 0:1151e4446dbc 228 u8 _endpointMap[MAX_ENDPOINTS_PER_DEVICE*2];
p07gbar 0:1151e4446dbc 229 u8 Hub;
p07gbar 0:1151e4446dbc 230 u8 Port;
p07gbar 0:1151e4446dbc 231 u8 Addr;
p07gbar 0:1151e4446dbc 232 u8 Pad;
p07gbar 0:1151e4446dbc 233
p07gbar 0:1151e4446dbc 234 // Only if this device is a hub
p07gbar 0:1151e4446dbc 235 u8 HubPortCount; // nonzero if this is a hub
p07gbar 0:1151e4446dbc 236 u8 HubInterruptData;
p07gbar 0:1151e4446dbc 237 u8 HubMap;
p07gbar 0:1151e4446dbc 238 u8 HubMask;
p07gbar 0:1151e4446dbc 239
p07gbar 0:1151e4446dbc 240 int Flags; // 1 = Disconnected
p07gbar 0:1151e4446dbc 241
p07gbar 0:1151e4446dbc 242 Setup SetupBuffer;
p07gbar 0:1151e4446dbc 243
p07gbar 0:1151e4446dbc 244 // Allocate endpoint zero
p07gbar 0:1151e4446dbc 245 int Init(DeviceDescriptor* d, int hub, int port, int addr, int lowSpeed)
p07gbar 0:1151e4446dbc 246 {
p07gbar 0:1151e4446dbc 247 Hub = hub;
p07gbar 0:1151e4446dbc 248 Port = port;
p07gbar 0:1151e4446dbc 249 Addr = addr;
p07gbar 0:1151e4446dbc 250 Flags = lowSpeed;
p07gbar 0:1151e4446dbc 251 memset(_endpointMap,0xFF,sizeof(_endpointMap));
p07gbar 0:1151e4446dbc 252 return 0;
p07gbar 0:1151e4446dbc 253 }
p07gbar 0:1151e4446dbc 254
p07gbar 0:1151e4446dbc 255 int SetEndpointIndex(int ep, int endpointIndex)
p07gbar 0:1151e4446dbc 256 {
p07gbar 0:1151e4446dbc 257 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
p07gbar 0:1151e4446dbc 258 {
p07gbar 0:1151e4446dbc 259 if (_endpointMap[i] == 0xFF) // Add endpoint to map
p07gbar 0:1151e4446dbc 260 {
p07gbar 0:1151e4446dbc 261 _endpointMap[i] = ep;
p07gbar 0:1151e4446dbc 262 _endpointMap[i+1] = endpointIndex;
p07gbar 0:1151e4446dbc 263 return 0;
p07gbar 0:1151e4446dbc 264 }
p07gbar 0:1151e4446dbc 265 }
p07gbar 0:1151e4446dbc 266 return ERR_ENDPOINT_NONE_LEFT;
p07gbar 0:1151e4446dbc 267 }
p07gbar 0:1151e4446dbc 268
p07gbar 0:1151e4446dbc 269 int GetEndpointIndex(int ep)
p07gbar 0:1151e4446dbc 270 {
p07gbar 0:1151e4446dbc 271 for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2)
p07gbar 0:1151e4446dbc 272 {
p07gbar 0:1151e4446dbc 273 if (_endpointMap[i] == ep)
p07gbar 0:1151e4446dbc 274 return _endpointMap[i+1];
p07gbar 0:1151e4446dbc 275 if (_endpointMap[i] == 0xFF)
p07gbar 0:1151e4446dbc 276 break;
p07gbar 0:1151e4446dbc 277 }
p07gbar 0:1151e4446dbc 278 return -1;
p07gbar 0:1151e4446dbc 279 }
p07gbar 0:1151e4446dbc 280 };
p07gbar 0:1151e4446dbc 281
p07gbar 0:1151e4446dbc 282 class HostController
p07gbar 0:1151e4446dbc 283 {
p07gbar 0:1151e4446dbc 284 public:
p07gbar 0:1151e4446dbc 285 HCCA CommunicationArea;
p07gbar 0:1151e4446dbc 286 Endpoint Endpoints[MAX_ENDPOINTS_TOTAL]; // Multiple of 16
p07gbar 0:1151e4446dbc 287
p07gbar 0:1151e4446dbc 288 Endpoint EndpointZero; // For device enumeration
p07gbar 0:1151e4446dbc 289 HCTD _commonTail;
p07gbar 0:1151e4446dbc 290 Setup _setupZero;
p07gbar 0:1151e4446dbc 291
p07gbar 0:1151e4446dbc 292 Device Devices[MAX_DEVICES];
p07gbar 0:1151e4446dbc 293 u32 _frameNumber; // 32 bit ms counter
p07gbar 0:1151e4446dbc 294
p07gbar 0:1151e4446dbc 295 u8 _callbacksPending; // Endpoints with callbacks are pending, set from ISR via ProcessDoneQueue
p07gbar 0:1151e4446dbc 296 u8 _rootHubStatusChange; // Root hub status has changed, set from ISR
p07gbar 0:1151e4446dbc 297 u8 _unused0;
p07gbar 0:1151e4446dbc 298 u8 _unused1;
p07gbar 0:1151e4446dbc 299
p07gbar 0:1151e4446dbc 300 u8 _connectPending; // Reset has initiated a connect
p07gbar 0:1151e4446dbc 301 u8 _connectCountdown; // Number of ms left after reset before we can connect
p07gbar 0:1151e4446dbc 302 u8 _connectHub; // Will connect on this hub
p07gbar 0:1151e4446dbc 303 u8 _connectPort; // ... and this port
p07gbar 0:1151e4446dbc 304
p07gbar 0:1151e4446dbc 305 u8 SRAM[0]; // Start of free SRAM
p07gbar 0:1151e4446dbc 306
p07gbar 0:1151e4446dbc 307 void Loop()
p07gbar 0:1151e4446dbc 308 {
p07gbar 0:1151e4446dbc 309 // printf("Enter Loop \r\n");
p07gbar 0:1151e4446dbc 310 u16 elapsed = CommunicationArea.FrameNumber - (u16)_frameNumber; // extend to 32 bits
p07gbar 0:1151e4446dbc 311 _frameNumber += elapsed;
p07gbar 0:1151e4446dbc 312
p07gbar 0:1151e4446dbc 313 // Do callbacks, if any
p07gbar 0:1151e4446dbc 314 while (_callbacksPending)
p07gbar 0:1151e4446dbc 315 {
p07gbar 0:1151e4446dbc 316 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
p07gbar 0:1151e4446dbc 317 {
p07gbar 0:1151e4446dbc 318 Endpoint* endpoint = Endpoints + i;
p07gbar 0:1151e4446dbc 319 if (endpoint->CurrentState == Endpoint::CallbackPending)
p07gbar 0:1151e4446dbc 320 {
p07gbar 0:1151e4446dbc 321 _callbacksPending--;
p07gbar 0:1151e4446dbc 322 endpoint->CurrentState = Endpoint::Idle;
p07gbar 0:1151e4446dbc 323 LOG("CurrentState Change Idle endpoint(%d) currentState =%d\r\n",endpoint->Address(),endpoint->CurrentState);
p07gbar 0:1151e4446dbc 324 endpoint->Callback(endpoint->Device(),endpoint->Address(),endpoint->Status(),endpoint->Data,endpoint->Length,endpoint->UserData);
p07gbar 0:1151e4446dbc 325 }
p07gbar 0:1151e4446dbc 326 }
p07gbar 0:1151e4446dbc 327 }
p07gbar 0:1151e4446dbc 328
p07gbar 0:1151e4446dbc 329 // Deal with changes on the root hub
p07gbar 0:1151e4446dbc 330 if (_rootHubStatusChange)
p07gbar 0:1151e4446dbc 331 {
p07gbar 0:1151e4446dbc 332 u32 status = LPC_USB->HcRhPortStatus1;
p07gbar 0:1151e4446dbc 333 _rootHubStatusChange = 0;
p07gbar 0:1151e4446dbc 334 if (status >> 16)
p07gbar 0:1151e4446dbc 335 {
p07gbar 0:1151e4446dbc 336 HubStatusChange(0,1,status);
p07gbar 0:1151e4446dbc 337 LPC_USB->HcRhPortStatus1 = status & 0xFFFF0000; // clear status changes
p07gbar 0:1151e4446dbc 338 }
p07gbar 0:1151e4446dbc 339 }
p07gbar 0:1151e4446dbc 340
p07gbar 0:1151e4446dbc 341 // Connect after reset timeout
p07gbar 0:1151e4446dbc 342 if (_connectCountdown)
p07gbar 0:1151e4446dbc 343 {
p07gbar 0:1151e4446dbc 344 if (elapsed >= _connectCountdown)
p07gbar 0:1151e4446dbc 345 {
p07gbar 0:1151e4446dbc 346 _connectCountdown = 0;
p07gbar 0:1151e4446dbc 347 Connect(_connectHub,_connectPort & 0x7F,_connectPort & 0x80);
p07gbar 0:1151e4446dbc 348 } else
p07gbar 0:1151e4446dbc 349 _connectCountdown -= elapsed;
p07gbar 0:1151e4446dbc 350 }
p07gbar 0:1151e4446dbc 351
p07gbar 0:1151e4446dbc 352 // printf("Outer Loop \r\n");
p07gbar 0:1151e4446dbc 353 }
p07gbar 0:1151e4446dbc 354
p07gbar 0:1151e4446dbc 355 // HubInterrupt - bitmap in dev->HubInterruptData
p07gbar 0:1151e4446dbc 356 void HubInterrupt(int device)
p07gbar 0:1151e4446dbc 357 {
p07gbar 0:1151e4446dbc 358 Device* dev = &Devices[device-1];
p07gbar 0:1151e4446dbc 359 for (int i = 0; i < dev->HubPortCount; i++)
p07gbar 0:1151e4446dbc 360 {
p07gbar 0:1151e4446dbc 361 int port = i+1;
p07gbar 0:1151e4446dbc 362 if (dev->HubInterruptData & (1 << port))
p07gbar 0:1151e4446dbc 363 {
p07gbar 0:1151e4446dbc 364 u32 status = 0;
p07gbar 0:1151e4446dbc 365 GetPortStatus(device,port,&status);
p07gbar 0:1151e4446dbc 366 if (status >> 16)
p07gbar 0:1151e4446dbc 367 {
p07gbar 0:1151e4446dbc 368 if (_connectPending && (status & ConnectStatusChange))
p07gbar 0:1151e4446dbc 369 continue; // Don't connect again until previous device has been added and addressed
p07gbar 0:1151e4446dbc 370
p07gbar 0:1151e4446dbc 371 HubStatusChange(device,port,status);
p07gbar 0:1151e4446dbc 372 if (status & ConnectStatusChange)
p07gbar 0:1151e4446dbc 373 ClearPortFeature(device,C_PORT_CONNECTION,port);
p07gbar 0:1151e4446dbc 374 if (status & PortResetStatusChange)
p07gbar 0:1151e4446dbc 375 ClearPortFeature(device,C_PORT_RESET,port);
p07gbar 0:1151e4446dbc 376 }
p07gbar 0:1151e4446dbc 377 }
p07gbar 0:1151e4446dbc 378 }
p07gbar 0:1151e4446dbc 379 }
p07gbar 0:1151e4446dbc 380
p07gbar 0:1151e4446dbc 381 static void HubInterruptCallback(int device, int endpoint, int status, u8* data, int len, void* userData)
p07gbar 0:1151e4446dbc 382 {
p07gbar 0:1151e4446dbc 383 HostController* controller = (HostController*)userData;
p07gbar 0:1151e4446dbc 384 if (status == 0)
p07gbar 0:1151e4446dbc 385 controller->HubInterrupt(device);
p07gbar 0:1151e4446dbc 386 USBInterruptTransfer(device,endpoint,data,1,HubInterruptCallback,userData);
p07gbar 0:1151e4446dbc 387 }
p07gbar 0:1151e4446dbc 388
p07gbar 0:1151e4446dbc 389 int InitHub(int device)
p07gbar 0:1151e4446dbc 390 {
p07gbar 0:1151e4446dbc 391 u8 buf[16];
p07gbar 0:1151e4446dbc 392 int r= USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_DEVICE,GET_DESCRIPTOR,(DESCRIPTOR_TYPE_HUB << 8),0,buf,sizeof(buf));
p07gbar 0:1151e4446dbc 393 if (r < 0)
p07gbar 0:1151e4446dbc 394 return ERR_HUB_INIT_FAILED;
p07gbar 0:1151e4446dbc 395
p07gbar 0:1151e4446dbc 396 // turn on power on the hubs ports
p07gbar 0:1151e4446dbc 397 Device* dev = &Devices[device-1];
p07gbar 0:1151e4446dbc 398 int ports = buf[2];
p07gbar 0:1151e4446dbc 399 dev->HubPortCount = ports;
p07gbar 0:1151e4446dbc 400 for (int i = 0; i < ports; i++)
p07gbar 0:1151e4446dbc 401 SetPortPower(device,i+1);
p07gbar 0:1151e4446dbc 402
p07gbar 0:1151e4446dbc 403 // Enable hub change interrupts
p07gbar 0:1151e4446dbc 404 return USBInterruptTransfer(device,0x81,&dev->HubInterruptData,1,HubInterruptCallback,this);
p07gbar 0:1151e4446dbc 405 }
p07gbar 0:1151e4446dbc 406
p07gbar 0:1151e4446dbc 407 int AddEndpoint(int device, int ep, int attributes, int maxPacketSize, int interval)
p07gbar 0:1151e4446dbc 408 {
p07gbar 0:1151e4446dbc 409 LOG("AddEndpoint D:%02X A:%02X T:%02X P:%04X I:%02X\r\n",device,ep,attributes,maxPacketSize,interval);
p07gbar 0:1151e4446dbc 410 Device* dev = &Devices[device-1];
p07gbar 0:1151e4446dbc 411 Endpoint* endpoint = AllocateEndpoint(device,ep,attributes,maxPacketSize);
p07gbar 0:1151e4446dbc 412 if (!endpoint)
p07gbar 0:1151e4446dbc 413 return ERR_ENDPOINT_NONE_LEFT;
p07gbar 0:1151e4446dbc 414 dev->SetEndpointIndex(ep,endpoint - Endpoints);
p07gbar 0:1151e4446dbc 415 endpoint->EndpointDescriptor.Control |= dev->Flags; // Map in slow speed
p07gbar 0:1151e4446dbc 416 return 0; // TODO ed->bInterval
p07gbar 0:1151e4446dbc 417 }
p07gbar 0:1151e4446dbc 418
p07gbar 0:1151e4446dbc 419 int AddEndpoint(int device, EndpointDescriptor* ed)
p07gbar 0:1151e4446dbc 420 {
p07gbar 0:1151e4446dbc 421 return AddEndpoint(device,ed->bEndpointAddress,ed->bmAttributes,ed->wMaxPacketSize,ed->bInterval);
p07gbar 0:1151e4446dbc 422 }
p07gbar 0:1151e4446dbc 423
p07gbar 0:1151e4446dbc 424 // allocate a endpoint
p07gbar 0:1151e4446dbc 425 Endpoint* AllocateEndpoint(int device, int endpointAddress, int type, int maxPacketSize)
p07gbar 0:1151e4446dbc 426 {
p07gbar 0:1151e4446dbc 427 for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++)
p07gbar 0:1151e4446dbc 428 {
p07gbar 0:1151e4446dbc 429 Endpoint* ep = &Endpoints[i];
p07gbar 0:1151e4446dbc 430 if (ep->CurrentState == 0)
p07gbar 0:1151e4446dbc 431 {
p07gbar 0:1151e4446dbc 432 //LOG("Allocated endpoint %d to %02X:%02X\r\n",i,device,endpointAddress);
p07gbar 0:1151e4446dbc 433 ep->Flags = (endpointAddress & 0x80) | (type & 3);
p07gbar 0:1151e4446dbc 434 ep->CurrentState = Endpoint::NotQueued;
p07gbar 0:1151e4446dbc 435 ep->EndpointDescriptor.Control = (maxPacketSize << 16) | ((endpointAddress & 0x7F) << 7) | device;
p07gbar 0:1151e4446dbc 436 return ep;
p07gbar 0:1151e4446dbc 437 }
p07gbar 0:1151e4446dbc 438 }
p07gbar 0:1151e4446dbc 439 return 0;
p07gbar 0:1151e4446dbc 440 }
p07gbar 0:1151e4446dbc 441
p07gbar 0:1151e4446dbc 442 Endpoint* GetEndpoint(int device, int ep)
p07gbar 0:1151e4446dbc 443 {
p07gbar 0:1151e4446dbc 444 if (device == 0)
p07gbar 0:1151e4446dbc 445 {
p07gbar 0:1151e4446dbc 446 //printf("WARNING: USING DEVICE 0\n");
p07gbar 0:1151e4446dbc 447 return &EndpointZero;
p07gbar 0:1151e4446dbc 448 }
p07gbar 0:1151e4446dbc 449 if (device > MAX_DEVICES)
p07gbar 0:1151e4446dbc 450 return 0;
p07gbar 0:1151e4446dbc 451 int i = Devices[device-1].GetEndpointIndex(ep);
p07gbar 0:1151e4446dbc 452 if (i == -1)
p07gbar 0:1151e4446dbc 453 return 0;
p07gbar 0:1151e4446dbc 454 return Endpoints + i;
p07gbar 0:1151e4446dbc 455 }
p07gbar 0:1151e4446dbc 456
p07gbar 0:1151e4446dbc 457 int Transfer(Endpoint* endpoint, int token, u8* data, int len, int state)
p07gbar 0:1151e4446dbc 458 {
p07gbar 0:1151e4446dbc 459 //Makoto edit comment out
p07gbar 0:1151e4446dbc 460 // LOG("Transfer start\r\n");
p07gbar 0:1151e4446dbc 461 LOG("Transfer ep=%02X Token:%d Len:%d State:%d\r\n",endpoint->Address(),token,len,state);
p07gbar 0:1151e4446dbc 462
p07gbar 0:1151e4446dbc 463 int toggle = 0;
p07gbar 0:1151e4446dbc 464 if (endpoint->Address() == 0)
p07gbar 0:1151e4446dbc 465 toggle = (token == TOKEN_SETUP) ? TD_TOGGLE_0 : TD_TOGGLE_1;
p07gbar 0:1151e4446dbc 466
p07gbar 0:1151e4446dbc 467 if (token != TOKEN_SETUP)
p07gbar 0:1151e4446dbc 468 token = (token == TOKEN_IN ? TD_IN : TD_OUT);
p07gbar 0:1151e4446dbc 469
p07gbar 0:1151e4446dbc 470 HCTD* head = &endpoint->TDHead;
p07gbar 0:1151e4446dbc 471 HCTD* tail = &_commonTail;
p07gbar 0:1151e4446dbc 472
p07gbar 0:1151e4446dbc 473 head->Control = TD_ROUNDING | token | TD_DELAY_INT(0) | toggle | TD_CC;
p07gbar 0:1151e4446dbc 474 head->CurrBufPtr = (u32)data;
p07gbar 0:1151e4446dbc 475 head->BufEnd = (u32)(data + len - 1);
p07gbar 0:1151e4446dbc 476 head->Next = (u32)tail;
p07gbar 0:1151e4446dbc 477
p07gbar 0:1151e4446dbc 478 HCED* ed = &endpoint->EndpointDescriptor;
p07gbar 0:1151e4446dbc 479 ed->HeadTd = (u32)head | (ed->HeadTd & 0x00000002); // carry toggle
p07gbar 0:1151e4446dbc 480 ed->TailTd = (u32)tail;
p07gbar 0:1151e4446dbc 481
p07gbar 0:1151e4446dbc 482 //HCTD* td = head;
p07gbar 0:1151e4446dbc 483 //LOG("%04X TD %08X %08X %08X Next:%08X\r\n",CommunicationArea.FrameNumber,td->Control,td->CurrBufPtr,td->BufEnd,td->Next);
p07gbar 0:1151e4446dbc 484 //LOG("%04X ED %08X %08X %08X\r\n",CommunicationArea.FrameNumber,ed->Control,ed->HeadTd,ed->TailTd);
p07gbar 0:1151e4446dbc 485
p07gbar 0:1151e4446dbc 486 //LOG("Transfer run01\r\n");
p07gbar 0:1151e4446dbc 487 switch (endpoint->Flags & 3)
p07gbar 0:1151e4446dbc 488 {
p07gbar 0:1151e4446dbc 489 case ENDPOINT_CONTROL:
p07gbar 0:1151e4446dbc 490 LOG("Transfer run ENDPOINT_CONTROL\r\n");
p07gbar 0:1151e4446dbc 491 LPC_USB->HcControlHeadED = endpoint->Enqueue(LPC_USB->HcControlHeadED); // May change state NotQueued->Idle
p07gbar 0:1151e4446dbc 492 //LOG("Transfer run02\r\n");
p07gbar 0:1151e4446dbc 493 LOG("endpoint->CurrentState change %d->%d\r\n",endpoint->CurrentState,state);
p07gbar 0:1151e4446dbc 494 endpoint->CurrentState = state; // Get in before an int
p07gbar 0:1151e4446dbc 495 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | ControlListFilled;
p07gbar 0:1151e4446dbc 496 LPC_USB->HcControl = LPC_USB->HcControl | ControlListEnable;
p07gbar 0:1151e4446dbc 497
p07gbar 0:1151e4446dbc 498 break;
p07gbar 0:1151e4446dbc 499
p07gbar 0:1151e4446dbc 500 case ENDPOINT_BULK:
p07gbar 0:1151e4446dbc 501 LOG("Transfer run ENDPOINT_BULK\r\n");
p07gbar 0:1151e4446dbc 502 LPC_USB->HcBulkHeadED = endpoint->Enqueue(LPC_USB->HcBulkHeadED);
p07gbar 0:1151e4446dbc 503 LOG("endpoint->CurrentState change %d->%d\r\n",endpoint->CurrentState,state);
p07gbar 0:1151e4446dbc 504 endpoint->CurrentState = state;
p07gbar 0:1151e4446dbc 505 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | BulkListFilled;
p07gbar 0:1151e4446dbc 506 LPC_USB->HcControl = LPC_USB->HcControl | BulkListEnable;
p07gbar 0:1151e4446dbc 507 break;
p07gbar 0:1151e4446dbc 508
p07gbar 0:1151e4446dbc 509 case ENDPOINT_INTERRUPT:
p07gbar 0:1151e4446dbc 510 LOG("Transfer run ENDPOINT_INTERRUPT\r\n");
p07gbar 0:1151e4446dbc 511 CommunicationArea.InterruptTable[0] = endpoint->Enqueue(CommunicationArea.InterruptTable[0]);
p07gbar 0:1151e4446dbc 512 LOG("endpoint->CurrentState change %d->%d\r\n",endpoint->CurrentState,state);
p07gbar 0:1151e4446dbc 513 endpoint->CurrentState = state;
p07gbar 0:1151e4446dbc 514 LPC_USB->HcControl |= PeriodicListEnable;
p07gbar 0:1151e4446dbc 515 break;
p07gbar 0:1151e4446dbc 516 }
p07gbar 0:1151e4446dbc 517
p07gbar 0:1151e4446dbc 518 LOG("Transfer end\r\n");
p07gbar 0:1151e4446dbc 519 return 0;
p07gbar 0:1151e4446dbc 520 }
p07gbar 0:1151e4446dbc 521
p07gbar 0:1151e4446dbc 522 // Remove an endpoint from an active queue
p07gbar 0:1151e4446dbc 523 bool Remove(HCED* ed, volatile HCED** queue)
p07gbar 0:1151e4446dbc 524 {
p07gbar 0:1151e4446dbc 525 if (*queue == 0)
p07gbar 0:1151e4446dbc 526 return false;
p07gbar 0:1151e4446dbc 527 if (*queue == (volatile HCED*)ed)
p07gbar 0:1151e4446dbc 528 {
p07gbar 0:1151e4446dbc 529 *queue = (volatile HCED*)ed->Next; // At head of queue
p07gbar 0:1151e4446dbc 530 return true;
p07gbar 0:1151e4446dbc 531 }
p07gbar 0:1151e4446dbc 532
p07gbar 0:1151e4446dbc 533 volatile HCED* head = *queue;
p07gbar 0:1151e4446dbc 534 while (head)
p07gbar 0:1151e4446dbc 535 {
p07gbar 0:1151e4446dbc 536 if (head->Next == (u32)ed)
p07gbar 0:1151e4446dbc 537 {
p07gbar 0:1151e4446dbc 538 head->Next = ed->Next;
p07gbar 0:1151e4446dbc 539 return true;
p07gbar 0:1151e4446dbc 540 }
p07gbar 0:1151e4446dbc 541 head = (volatile HCED*)head->Next;
p07gbar 0:1151e4446dbc 542 }
p07gbar 0:1151e4446dbc 543 return false;
p07gbar 0:1151e4446dbc 544 }
p07gbar 0:1151e4446dbc 545
p07gbar 0:1151e4446dbc 546 void Release(Endpoint* endpoint)
p07gbar 0:1151e4446dbc 547 {
p07gbar 0:1151e4446dbc 548 if (endpoint->CurrentState == Endpoint::NotQueued)
p07gbar 0:1151e4446dbc 549 {
p07gbar 0:1151e4446dbc 550 // Never event used it, nothing to do
p07gbar 0:1151e4446dbc 551 }
p07gbar 0:1151e4446dbc 552 else
p07gbar 0:1151e4446dbc 553 {
p07gbar 0:1151e4446dbc 554 HCED* ed = (HCED*)endpoint;
p07gbar 0:1151e4446dbc 555 ed->Control |= 0x4000; // SKIP
p07gbar 0:1151e4446dbc 556 switch (endpoint->Flags & 0x03)
p07gbar 0:1151e4446dbc 557 {
p07gbar 0:1151e4446dbc 558 case ENDPOINT_CONTROL:
p07gbar 0:1151e4446dbc 559 Remove(ed,(volatile HCED**)&LPC_USB->HcControlHeadED);
p07gbar 0:1151e4446dbc 560 break;
p07gbar 0:1151e4446dbc 561 case ENDPOINT_BULK:
p07gbar 0:1151e4446dbc 562 Remove(ed,(volatile HCED**)&LPC_USB->HcBulkHeadED);
p07gbar 0:1151e4446dbc 563 break;
p07gbar 0:1151e4446dbc 564 case ENDPOINT_INTERRUPT:
p07gbar 0:1151e4446dbc 565 for (int i = 0; i < 32; i++)
p07gbar 0:1151e4446dbc 566 Remove(ed,(volatile HCED**)&CommunicationArea.InterruptTable[i]);
p07gbar 0:1151e4446dbc 567 break;
p07gbar 0:1151e4446dbc 568 }
p07gbar 0:1151e4446dbc 569
p07gbar 0:1151e4446dbc 570 u16 fn = CommunicationArea.FrameNumber;
p07gbar 0:1151e4446dbc 571 while (fn == CommunicationArea.FrameNumber)
p07gbar 0:1151e4446dbc 572 ; // Wait for next frame
p07gbar 0:1151e4446dbc 573
p07gbar 0:1151e4446dbc 574 }
p07gbar 0:1151e4446dbc 575
p07gbar 0:1151e4446dbc 576 // In theory, the endpoint is now dead.
p07gbar 0:1151e4446dbc 577 // TODO: Will Callbacks ever be pending? BUGBUG
p07gbar 0:1151e4446dbc 578 memset(endpoint,0,sizeof(Endpoint));
p07gbar 0:1151e4446dbc 579 }
p07gbar 0:1151e4446dbc 580
p07gbar 0:1151e4446dbc 581 // Pop the last TD from the list
p07gbar 0:1151e4446dbc 582 HCTD* Reverse(HCTD* current)
p07gbar 0:1151e4446dbc 583 {
p07gbar 0:1151e4446dbc 584 HCTD *result = NULL,*temp;
p07gbar 0:1151e4446dbc 585 while (current)
p07gbar 0:1151e4446dbc 586 {
p07gbar 0:1151e4446dbc 587 temp = (HCTD*)current->Next;
p07gbar 0:1151e4446dbc 588 current->Next = (u32)result;
p07gbar 0:1151e4446dbc 589 result = current;
p07gbar 0:1151e4446dbc 590 current = temp;
p07gbar 0:1151e4446dbc 591 }
p07gbar 0:1151e4446dbc 592 return result;
p07gbar 0:1151e4446dbc 593 }
p07gbar 0:1151e4446dbc 594
p07gbar 0:1151e4446dbc 595 // Called from interrupt...
p07gbar 0:1151e4446dbc 596 // Control endpoints use a state machine to progress through the transfers
p07gbar 0:1151e4446dbc 597 void ProcessDoneQueue(u32 tdList)
p07gbar 0:1151e4446dbc 598 {
p07gbar 0:1151e4446dbc 599
p07gbar 0:1151e4446dbc 600 LOG("<<ProcessDoneQueue enter>>\r\n");
p07gbar 0:1151e4446dbc 601 HCTD* list = Reverse((HCTD*)tdList);
p07gbar 0:1151e4446dbc 602 while (list)
p07gbar 0:1151e4446dbc 603 {
p07gbar 0:1151e4446dbc 604 Endpoint* endpoint = (Endpoint*)(list-1);
p07gbar 0:1151e4446dbc 605 list = (HCTD*)list->Next;
p07gbar 0:1151e4446dbc 606 int ep = endpoint->Address();
p07gbar 0:1151e4446dbc 607 bool in = endpoint->Flags & 0x80;
p07gbar 0:1151e4446dbc 608 int status = (endpoint->TDHead.Control >> 28) & 0xF;
p07gbar 0:1151e4446dbc 609
p07gbar 0:1151e4446dbc 610 //LOG("ProcessDoneQueue %02X %08X\r\n",ep,endpoint->TDHead.Control);
p07gbar 0:1151e4446dbc 611
p07gbar 0:1151e4446dbc 612 if (status != 0)
p07gbar 0:1151e4446dbc 613 {
p07gbar 0:1151e4446dbc 614 LOG("ProcessDoneQueue status %02X %d\r\n",ep,status);
p07gbar 0:1151e4446dbc 615 LOG("CurrentState Change Idle endpoint(%d) currentState =%d\r\n",endpoint->Address(),endpoint->CurrentState);
p07gbar 0:1151e4446dbc 616 endpoint->CurrentState = Endpoint::Idle;
p07gbar 0:1151e4446dbc 617
p07gbar 0:1151e4446dbc 618
p07gbar 0:1151e4446dbc 619 } else {
p07gbar 0:1151e4446dbc 620 switch (endpoint->CurrentState)
p07gbar 0:1151e4446dbc 621 {
p07gbar 0:1151e4446dbc 622 case Endpoint::SetupQueued:
p07gbar 0:1151e4446dbc 623 if (endpoint->Length == 0)
p07gbar 0:1151e4446dbc 624 {
p07gbar 0:1151e4446dbc 625 LOG("ProcessDoneQueue endpoint->Length == 0 endpoint->CurrentState=%d\r\n",endpoint->CurrentState);
p07gbar 0:1151e4446dbc 626 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Skip Data Phase
p07gbar 0:1151e4446dbc 627 }
p07gbar 0:1151e4446dbc 628 else
p07gbar 0:1151e4446dbc 629 {
p07gbar 0:1151e4446dbc 630 LOG("ProcessDoneQueue endpoint->Length != 0 endpoint->CurrentState=%d\r\n",endpoint->CurrentState);
p07gbar 0:1151e4446dbc 631 Transfer(endpoint,in ? TOKEN_IN : TOKEN_OUT,endpoint->Data,endpoint->Length, Endpoint::DataQueued); // Setup is done, now Data
p07gbar 0:1151e4446dbc 632 }
p07gbar 0:1151e4446dbc 633 break;
p07gbar 0:1151e4446dbc 634
p07gbar 0:1151e4446dbc 635 case Endpoint::DataQueued:
p07gbar 0:1151e4446dbc 636 if (endpoint->TDHead.CurrBufPtr)
p07gbar 0:1151e4446dbc 637 endpoint->Length = endpoint->TDHead.CurrBufPtr - (u32)endpoint->Data;
p07gbar 0:1151e4446dbc 638
p07gbar 0:1151e4446dbc 639 if (ep == 0)
p07gbar 0:1151e4446dbc 640 {
p07gbar 0:1151e4446dbc 641 LOG("ProcessDoneQueue ep == 0 endpoint->CurrentState=%d\r\n",endpoint->CurrentState);
p07gbar 0:1151e4446dbc 642 Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Data is done, now Status, Control only
p07gbar 0:1151e4446dbc 643 }
p07gbar 0:1151e4446dbc 644 else
p07gbar 0:1151e4446dbc 645 {
p07gbar 0:1151e4446dbc 646
p07gbar 0:1151e4446dbc 647 LOG("ProcessDoneQueue ep != 0 endpoint->CurrentState=%d\r\n",endpoint->CurrentState);
p07gbar 0:1151e4446dbc 648 endpoint->CurrentState = Endpoint::Idle;
p07gbar 0:1151e4446dbc 649 LOG("CurrentState Change Idle endpoint(%d) currentState =%d\r\n",endpoint->Address(),endpoint->CurrentState);
p07gbar 0:1151e4446dbc 650 }
p07gbar 0:1151e4446dbc 651 break;
p07gbar 0:1151e4446dbc 652
p07gbar 0:1151e4446dbc 653 case Endpoint::StatusQueued: // Transaction is done
p07gbar 0:1151e4446dbc 654 LOG("CurrentState Change Idle endpoint(%d) currentState =%d\r\n",endpoint->Address(),endpoint->CurrentState);
p07gbar 0:1151e4446dbc 655 endpoint->CurrentState = Endpoint::Idle;
p07gbar 0:1151e4446dbc 656 break;
p07gbar 0:1151e4446dbc 657 }
p07gbar 0:1151e4446dbc 658 }
p07gbar 0:1151e4446dbc 659
p07gbar 0:1151e4446dbc 660 // Complete, flag if we need a callback
p07gbar 0:1151e4446dbc 661 if (endpoint->Callback && endpoint->CurrentState == Endpoint::Idle)
p07gbar 0:1151e4446dbc 662 {
p07gbar 0:1151e4446dbc 663 endpoint->CurrentState = Endpoint::CallbackPending;
p07gbar 0:1151e4446dbc 664 _callbacksPending++;
p07gbar 0:1151e4446dbc 665 }
p07gbar 0:1151e4446dbc 666 }
p07gbar 0:1151e4446dbc 667 LOG("<<ProcessDoneQueue out>>\r\n");
p07gbar 0:1151e4446dbc 668 }
p07gbar 0:1151e4446dbc 669
p07gbar 0:1151e4446dbc 670 // Hack to reset devices that don't want to connect
p07gbar 0:1151e4446dbc 671 int AddDevice(int hub, int port, bool isLowSpeed)
p07gbar 0:1151e4446dbc 672 {
p07gbar 0:1151e4446dbc 673 int device = AddDeviceCore(hub,port,isLowSpeed);
p07gbar 0:1151e4446dbc 674 if (device < 0)
p07gbar 0:1151e4446dbc 675 {
p07gbar 0:1151e4446dbc 676 LOG("========RETRY ADD DEVICE========\r\n"); // This will go for ever.. TODO power cycle root?
p07gbar 0:1151e4446dbc 677 Disconnect(hub,port); // Could not read descriptor at assigned address, reset this port and try again
p07gbar 0:1151e4446dbc 678 ResetPort(hub,port); // Cheap bluetooth dongles often need this on a hotplug
p07gbar 0:1151e4446dbc 679 return -1;
p07gbar 0:1151e4446dbc 680 }
p07gbar 0:1151e4446dbc 681 return device;
p07gbar 0:1151e4446dbc 682 }
p07gbar 0:1151e4446dbc 683
p07gbar 0:1151e4446dbc 684 int AddDeviceCore(int hub, int port, bool isLowSpeed)
p07gbar 0:1151e4446dbc 685 {
p07gbar 0:1151e4446dbc 686 int lowSpeed = isLowSpeed ? 0x2000 : 0;
p07gbar 0:1151e4446dbc 687 DeviceDescriptor desc;
p07gbar 0:1151e4446dbc 688 EndpointZero.EndpointDescriptor.Control = (8 << 16) | lowSpeed; // MaxPacketSize == 8
p07gbar 0:1151e4446dbc 689 int r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,8);
p07gbar 0:1151e4446dbc 690 if (r < 0)
p07gbar 0:1151e4446dbc 691 {
p07gbar 0:1151e4446dbc 692 LOG("FAILED TO LOAD DESCRIPTOR FOR DEVICE 0\r\n");
p07gbar 0:1151e4446dbc 693 return r;
p07gbar 0:1151e4446dbc 694 }
p07gbar 0:1151e4446dbc 695
p07gbar 0:1151e4446dbc 696 EndpointZero.EndpointDescriptor.Control = (desc.bMaxPacketSize << 16) | lowSpeed; // Actual MaxPacketSize
p07gbar 0:1151e4446dbc 697 r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
p07gbar 0:1151e4446dbc 698 if (r < 0)
p07gbar 0:1151e4446dbc 699 return r;
p07gbar 0:1151e4446dbc 700
p07gbar 0:1151e4446dbc 701 LOG("\nClass %02X found %04X:%04X\r\n",desc.bDeviceClass,desc.idVendor,desc.idProduct);
p07gbar 0:1151e4446dbc 702
p07gbar 0:1151e4446dbc 703 // Now assign the device an address, move off EndpointZero
p07gbar 0:1151e4446dbc 704 int device = 0;
p07gbar 0:1151e4446dbc 705 for (int i = 0; i < MAX_DEVICES; i++)
p07gbar 0:1151e4446dbc 706 {
p07gbar 0:1151e4446dbc 707 if (Devices[i].Port == 0)
p07gbar 0:1151e4446dbc 708 {
p07gbar 0:1151e4446dbc 709 device = i+1;
p07gbar 0:1151e4446dbc 710 break;
p07gbar 0:1151e4446dbc 711 }
p07gbar 0:1151e4446dbc 712 }
p07gbar 0:1151e4446dbc 713 if (!device)
p07gbar 0:1151e4446dbc 714 return ERR_DEVICE_NONE_LEFT;
p07gbar 0:1151e4446dbc 715
p07gbar 0:1151e4446dbc 716 r = SetAddress(0,device);
p07gbar 0:1151e4446dbc 717 if (r)
p07gbar 0:1151e4446dbc 718 return r;
p07gbar 0:1151e4446dbc 719 DelayMS(2);
p07gbar 0:1151e4446dbc 720
p07gbar 0:1151e4446dbc 721 // Now at a nonzero address, create control endpoint
p07gbar 0:1151e4446dbc 722 Device* dev = &Devices[device-1];
p07gbar 0:1151e4446dbc 723 dev->Init(&desc,hub,port,device,lowSpeed);
p07gbar 0:1151e4446dbc 724 AddEndpoint(device,0,ENDPOINT_CONTROL,desc.bMaxPacketSize,0);
p07gbar 0:1151e4446dbc 725 _connectPending = 0;
p07gbar 0:1151e4446dbc 726
p07gbar 0:1151e4446dbc 727 // Verify this all works
p07gbar 0:1151e4446dbc 728 r = GetDescriptor(device,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc));
p07gbar 0:1151e4446dbc 729 if (r < 0)
p07gbar 0:1151e4446dbc 730 return r;
p07gbar 0:1151e4446dbc 731
p07gbar 0:1151e4446dbc 732 // Set to interface 0 by default
p07gbar 0:1151e4446dbc 733 // Calls LoadDevice if interface is found
p07gbar 0:1151e4446dbc 734 r = SetConfigurationAndInterface(device,1,0,&desc);
p07gbar 0:1151e4446dbc 735
p07gbar 0:1151e4446dbc 736 if (desc.bDeviceClass == CLASS_HUB)
p07gbar 0:1151e4446dbc 737 InitHub(device); // Handle hubs in this code
p07gbar 0:1151e4446dbc 738
p07gbar 0:1151e4446dbc 739 return device;
p07gbar 0:1151e4446dbc 740 }
p07gbar 0:1151e4446dbc 741
p07gbar 0:1151e4446dbc 742 // Walk descriptors and create endpoints for a given device
p07gbar 0:1151e4446dbc 743 // TODO configuration !=1, alternate settings etc.
p07gbar 0:1151e4446dbc 744 int SetConfigurationAndInterface(int device, int configuration, int interfaceNumber, DeviceDescriptor* desc)
p07gbar 0:1151e4446dbc 745 {
p07gbar 0:1151e4446dbc 746 u8 buffer[255];
p07gbar 0:1151e4446dbc 747 int err = GetDescriptor(device,DESCRIPTOR_TYPE_CONFIGURATION,0,buffer,sizeof(buffer));
p07gbar 0:1151e4446dbc 748 if (err < 0)
p07gbar 0:1151e4446dbc 749 return err;
p07gbar 0:1151e4446dbc 750
p07gbar 0:1151e4446dbc 751 err = SetConfiguration(device,configuration);
p07gbar 0:1151e4446dbc 752 if (err < 0)
p07gbar 0:1151e4446dbc 753 return err;
p07gbar 0:1151e4446dbc 754
p07gbar 0:1151e4446dbc 755 // Add the endpoints for this interface
p07gbar 0:1151e4446dbc 756 int len = buffer[2] | (buffer[3] << 8);
p07gbar 0:1151e4446dbc 757 u8* d = buffer;
p07gbar 0:1151e4446dbc 758 u8* end = d + len;
p07gbar 0:1151e4446dbc 759 InterfaceDescriptor* found = 0;
p07gbar 0:1151e4446dbc 760 while (d < end)
p07gbar 0:1151e4446dbc 761 {
p07gbar 0:1151e4446dbc 762 if (d[1] == DESCRIPTOR_TYPE_INTERFACE)
p07gbar 0:1151e4446dbc 763 {
p07gbar 0:1151e4446dbc 764 InterfaceDescriptor* id = (InterfaceDescriptor*)d;
p07gbar 0:1151e4446dbc 765 if (id->bInterfaceNumber == interfaceNumber)
p07gbar 0:1151e4446dbc 766 {
p07gbar 0:1151e4446dbc 767 found = id;
p07gbar 0:1151e4446dbc 768 d += d[0];
p07gbar 0:1151e4446dbc 769 while (d < end && d[1] != DESCRIPTOR_TYPE_INTERFACE)
p07gbar 0:1151e4446dbc 770 {
p07gbar 0:1151e4446dbc 771 switch (d[1])
p07gbar 0:1151e4446dbc 772 {
p07gbar 0:1151e4446dbc 773 case DESCRIPTOR_TYPE_ENDPOINT:
p07gbar 0:1151e4446dbc 774 AddEndpoint(device,(EndpointDescriptor*)d);
p07gbar 0:1151e4446dbc 775 break;
p07gbar 0:1151e4446dbc 776 default:
p07gbar 0:1151e4446dbc 777 LOG("Skipping descriptor %02X (%d bytes)\r\n",d[1],d[0]);
p07gbar 0:1151e4446dbc 778 }
p07gbar 0:1151e4446dbc 779 d += d[0];
p07gbar 0:1151e4446dbc 780 }
p07gbar 0:1151e4446dbc 781 }
p07gbar 0:1151e4446dbc 782 }
p07gbar 0:1151e4446dbc 783 d += d[0];
p07gbar 0:1151e4446dbc 784 }
p07gbar 0:1151e4446dbc 785
p07gbar 0:1151e4446dbc 786 if (!found)
p07gbar 0:1151e4446dbc 787 return ERR_INTERFACE_NOT_FOUND;
p07gbar 0:1151e4446dbc 788 OnLoadDevice(device,desc,found);
p07gbar 0:1151e4446dbc 789 return 0;
p07gbar 0:1151e4446dbc 790 }
p07gbar 0:1151e4446dbc 791
p07gbar 0:1151e4446dbc 792 void Init()
p07gbar 0:1151e4446dbc 793 {
p07gbar 0:1151e4446dbc 794 LOG("USB INIT (Controller is %d bytes)\r\n",sizeof(*this));
p07gbar 0:1151e4446dbc 795 memset(this,0,sizeof(HostController));
p07gbar 0:1151e4446dbc 796 EndpointZero.CurrentState = Endpoint::NotQueued;
p07gbar 0:1151e4446dbc 797 HWInit(&CommunicationArea);
p07gbar 0:1151e4446dbc 798 DelayMS(10);
p07gbar 0:1151e4446dbc 799 }
p07gbar 0:1151e4446dbc 800
p07gbar 0:1151e4446dbc 801 void ResetPort(int hub, int port)
p07gbar 0:1151e4446dbc 802 {
p07gbar 0:1151e4446dbc 803 LOG("ResetPort Hub:%d Port:%d\r\n",hub,port);
p07gbar 0:1151e4446dbc 804 _connectPending++; // Only reset/add 1 device at a time
p07gbar 0:1151e4446dbc 805 if (hub == 0)
p07gbar 0:1151e4446dbc 806 LPC_USB->HcRhPortStatus1 = PortResetStatus; // Reset Root Hub, port 1
p07gbar 0:1151e4446dbc 807 else
p07gbar 0:1151e4446dbc 808 SetPortReset(hub,port); // or reset other hub
p07gbar 0:1151e4446dbc 809 }
p07gbar 0:1151e4446dbc 810
p07gbar 0:1151e4446dbc 811 void Disconnect(int hub, int port)
p07gbar 0:1151e4446dbc 812 {
p07gbar 0:1151e4446dbc 813 LOG("Disconnect Hub:%d Port:%d\r\n",hub,port); // Mark a device for destruction
p07gbar 0:1151e4446dbc 814 for (int i = 0; i < MAX_DEVICES; i++)
p07gbar 0:1151e4446dbc 815 {
p07gbar 0:1151e4446dbc 816 Device* dev = Devices + i;
p07gbar 0:1151e4446dbc 817 if (dev->Port == port && dev->Hub == hub)
p07gbar 0:1151e4446dbc 818 {
p07gbar 0:1151e4446dbc 819 // Disconnect everything that is attached to this device if it is a hub
p07gbar 0:1151e4446dbc 820 for (int p = 0; p < dev->HubPortCount; p++)
p07gbar 0:1151e4446dbc 821 Disconnect(i+1,p+1);
p07gbar 0:1151e4446dbc 822
p07gbar 0:1151e4446dbc 823 // Now release endpoints
p07gbar 0:1151e4446dbc 824 for (int j = 1; j < MAX_ENDPOINTS_PER_DEVICE*2; j += 2)
p07gbar 0:1151e4446dbc 825 {
p07gbar 0:1151e4446dbc 826 u8 endpointIndex = dev->_endpointMap[j];
p07gbar 0:1151e4446dbc 827 if (endpointIndex != 0xFF)
p07gbar 0:1151e4446dbc 828 Release(Endpoints + endpointIndex);
p07gbar 0:1151e4446dbc 829 }
p07gbar 0:1151e4446dbc 830 dev->Port = 0; // Device is now free
p07gbar 0:1151e4446dbc 831 dev->Flags = 0;
p07gbar 0:1151e4446dbc 832 return;
p07gbar 0:1151e4446dbc 833 }
p07gbar 0:1151e4446dbc 834 }
p07gbar 0:1151e4446dbc 835 }
p07gbar 0:1151e4446dbc 836
p07gbar 0:1151e4446dbc 837 // called after reset
p07gbar 0:1151e4446dbc 838 void Connect(int hub, int port, bool lowspeed)
p07gbar 0:1151e4446dbc 839 {
p07gbar 0:1151e4446dbc 840 LOG("Connect Hub:%d Port:%d %s\r\n",hub,port,lowspeed ? "slow" : "full");
p07gbar 0:1151e4446dbc 841 AddDevice(hub,port,lowspeed);
p07gbar 0:1151e4446dbc 842 }
p07gbar 0:1151e4446dbc 843
p07gbar 0:1151e4446dbc 844 // Called from interrupt
p07gbar 0:1151e4446dbc 845 void HubStatusChange(int hub, int port, u32 status)
p07gbar 0:1151e4446dbc 846 {
p07gbar 0:1151e4446dbc 847 LOG("HubStatusChange Hub:%d Port:%d %08X\r\n",hub,port,status);
p07gbar 0:1151e4446dbc 848 if (status & ConnectStatusChange)
p07gbar 0:1151e4446dbc 849 {
p07gbar 0:1151e4446dbc 850 if (status & CurrentConnectStatus) // Connecting
p07gbar 0:1151e4446dbc 851 ResetPort(hub,port); // Reset to initiate connect (state machine?)
p07gbar 0:1151e4446dbc 852 else
p07gbar 0:1151e4446dbc 853 Disconnect(hub,port);
p07gbar 0:1151e4446dbc 854 }
p07gbar 0:1151e4446dbc 855
p07gbar 0:1151e4446dbc 856 if (status & PortResetStatusChange)
p07gbar 0:1151e4446dbc 857 {
p07gbar 0:1151e4446dbc 858 if (!(status & PortResetStatus))
p07gbar 0:1151e4446dbc 859 {
p07gbar 0:1151e4446dbc 860 _connectCountdown = 200; // Schedule a connection in 200ms
p07gbar 0:1151e4446dbc 861 if (status & LowspeedDevice)
p07gbar 0:1151e4446dbc 862 port |= 0x80;
p07gbar 0:1151e4446dbc 863 _connectHub = hub;
p07gbar 0:1151e4446dbc 864 _connectPort = port;
p07gbar 0:1151e4446dbc 865 }
p07gbar 0:1151e4446dbc 866 }
p07gbar 0:1151e4446dbc 867 }
p07gbar 0:1151e4446dbc 868
p07gbar 0:1151e4446dbc 869 #define HOST_CLK_EN (1<<0)
p07gbar 0:1151e4446dbc 870 #define PORTSEL_CLK_EN (1<<3)
p07gbar 0:1151e4446dbc 871 #define AHB_CLK_EN (1<<4)
p07gbar 0:1151e4446dbc 872 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
p07gbar 0:1151e4446dbc 873
p07gbar 0:1151e4446dbc 874 #define FRAMEINTERVAL (12000-1) // 1ms
p07gbar 0:1151e4446dbc 875 #define DEFAULT_FMINTERVAL ((((6 * (FRAMEINTERVAL - 210)) / 7) << 16) | FRAMEINTERVAL)
p07gbar 0:1151e4446dbc 876
p07gbar 0:1151e4446dbc 877 void DelayMS(int ms)
p07gbar 0:1151e4446dbc 878 {
p07gbar 0:1151e4446dbc 879 u16 f = ms + CommunicationArea.FrameNumber;
p07gbar 0:1151e4446dbc 880 while (f != CommunicationArea.FrameNumber)
p07gbar 0:1151e4446dbc 881 ;
p07gbar 0:1151e4446dbc 882 }
p07gbar 0:1151e4446dbc 883
p07gbar 0:1151e4446dbc 884 static void HWInit(HCCA* cca)
p07gbar 0:1151e4446dbc 885 {
p07gbar 0:1151e4446dbc 886 NVIC_DisableIRQ(USB_IRQn);
p07gbar 0:1151e4446dbc 887
p07gbar 0:1151e4446dbc 888 // turn on power for USB
p07gbar 0:1151e4446dbc 889 LPC_SC->PCONP |= (1UL<<31);
p07gbar 0:1151e4446dbc 890 // Enable USB host clock, port selection and AHB clock
p07gbar 0:1151e4446dbc 891 LPC_USB->USBClkCtrl |= CLOCK_MASK;
p07gbar 0:1151e4446dbc 892 // Wait for clocks to become available
p07gbar 0:1151e4446dbc 893 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
p07gbar 0:1151e4446dbc 894 ;
p07gbar 0:1151e4446dbc 895
p07gbar 0:1151e4446dbc 896 // We are a Host
p07gbar 0:1151e4446dbc 897 LPC_USB->OTGStCtrl |= 1;
p07gbar 0:1151e4446dbc 898 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN; // we don't need port selection clock until we do OTG
p07gbar 0:1151e4446dbc 899
p07gbar 0:1151e4446dbc 900 // configure USB pins
p07gbar 0:1151e4446dbc 901 LPC_PINCON->PINSEL1 &= ~((3<<26)|(3<<28));
p07gbar 0:1151e4446dbc 902 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // USB D+/D-
p07gbar 0:1151e4446dbc 903
p07gbar 0:1151e4446dbc 904 LPC_PINCON->PINSEL3 &= ~((3 << 6) | (3 << 22)); // USB_PPWR, USB_OVRCR
p07gbar 0:1151e4446dbc 905 LPC_PINCON->PINSEL3 |= ((2 << 6) | (2 << 22));
p07gbar 0:1151e4446dbc 906
p07gbar 0:1151e4446dbc 907 LPC_PINCON->PINSEL4 &= ~(3 << 18); // USB_CONNECT
p07gbar 0:1151e4446dbc 908 LPC_PINCON->PINSEL4 |= (1 << 18);
p07gbar 0:1151e4446dbc 909
p07gbar 0:1151e4446dbc 910 // Reset OHCI block
p07gbar 0:1151e4446dbc 911 LPC_USB->HcControl = 0;
p07gbar 0:1151e4446dbc 912 LPC_USB->HcControlHeadED = 0;
p07gbar 0:1151e4446dbc 913 LPC_USB->HcBulkHeadED = 0;
p07gbar 0:1151e4446dbc 914
p07gbar 0:1151e4446dbc 915 LPC_USB->HcCommandStatus = HostControllerReset;
p07gbar 0:1151e4446dbc 916 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL;
p07gbar 0:1151e4446dbc 917 LPC_USB->HcPeriodicStart = FRAMEINTERVAL*90/100;
p07gbar 0:1151e4446dbc 918
p07gbar 0:1151e4446dbc 919 LPC_USB->HcControl = (LPC_USB->HcControl & (~HostControllerFunctionalState)) | OperationalMask;
p07gbar 0:1151e4446dbc 920 LPC_USB->HcRhStatus = SetGlobalPower;
p07gbar 0:1151e4446dbc 921
p07gbar 0:1151e4446dbc 922 LPC_USB->HcHCCA = (u32)cca;
p07gbar 0:1151e4446dbc 923 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus;
p07gbar 0:1151e4446dbc 924 LPC_USB->HcInterruptEnable = MasterInterruptEnable | WritebackDoneHead | RootHubStatusChange | FrameNumberOverflow;
p07gbar 0:1151e4446dbc 925
p07gbar 0:1151e4446dbc 926 NVIC_SetPriority(USB_IRQn, 0);
p07gbar 0:1151e4446dbc 927 NVIC_EnableIRQ(USB_IRQn);
p07gbar 0:1151e4446dbc 928 while (cca->FrameNumber < 10)
p07gbar 0:1151e4446dbc 929 ; // 10ms delay before diving in
p07gbar 0:1151e4446dbc 930 }
p07gbar 0:1151e4446dbc 931 };
p07gbar 0:1151e4446dbc 932
p07gbar 0:1151e4446dbc 933 //====================================================================================
p07gbar 0:1151e4446dbc 934 //====================================================================================
p07gbar 0:1151e4446dbc 935 // Host controller instance and Interrupt handler
p07gbar 0:1151e4446dbc 936
p07gbar 0:1151e4446dbc 937 static HostController _controller __attribute__((at(USB_RAM_BASE)));
p07gbar 0:1151e4446dbc 938
p07gbar 0:1151e4446dbc 939 extern "C" void USB_IRQHandler(void) __irq;
p07gbar 0:1151e4446dbc 940 void USB_IRQHandler (void) __irq
p07gbar 0:1151e4446dbc 941 {
p07gbar 0:1151e4446dbc 942 LOG("USB_IRQHandler start \r\n");
p07gbar 0:1151e4446dbc 943 u32 int_status = LPC_USB->HcInterruptStatus;
p07gbar 0:1151e4446dbc 944 LOG("USB_IRQHandler int_status=%0x\r\n",int_status);
p07gbar 0:1151e4446dbc 945
p07gbar 0:1151e4446dbc 946 if(int_status & UnrecoverableError) //Error
p07gbar 0:1151e4446dbc 947 {
p07gbar 0:1151e4446dbc 948 LOG("USB_IRQHandler UnrecoverableError Please reset\r\n");
p07gbar 0:1151e4446dbc 949 }
p07gbar 0:1151e4446dbc 950
p07gbar 0:1151e4446dbc 951 if(int_status & MasterInterruptEnable)
p07gbar 0:1151e4446dbc 952 {
p07gbar 0:1151e4446dbc 953 LOG("USB_IRQHandler MasterInterruptEnable\r\n");
p07gbar 0:1151e4446dbc 954 }
p07gbar 0:1151e4446dbc 955
p07gbar 0:1151e4446dbc 956 if(int_status &OwnershipChange)
p07gbar 0:1151e4446dbc 957 {
p07gbar 0:1151e4446dbc 958 LOG("USB_IRQHandler OwnershipChange\r\n");
p07gbar 0:1151e4446dbc 959 }
p07gbar 0:1151e4446dbc 960
p07gbar 0:1151e4446dbc 961 if(int_status &FrameNumberOverflow)
p07gbar 0:1151e4446dbc 962 {
p07gbar 0:1151e4446dbc 963 LOG("USB_IRQHandler FrameNumberOverflow\r\n");
p07gbar 0:1151e4446dbc 964 }
p07gbar 0:1151e4446dbc 965 if(int_status&ResumeDetected)
p07gbar 0:1151e4446dbc 966 {
p07gbar 0:1151e4446dbc 967 LOG("USB_IRQHandler ResumeDetected\r\n");
p07gbar 0:1151e4446dbc 968 }
p07gbar 0:1151e4446dbc 969 if(int_status&StartofFrame)
p07gbar 0:1151e4446dbc 970 {
p07gbar 0:1151e4446dbc 971 LOG("USB_IRQHandler StartofFrame\r\n");
p07gbar 0:1151e4446dbc 972 }
p07gbar 0:1151e4446dbc 973
p07gbar 0:1151e4446dbc 974
p07gbar 0:1151e4446dbc 975 if (int_status & RootHubStatusChange) // Root hub status change
p07gbar 0:1151e4446dbc 976 {
p07gbar 0:1151e4446dbc 977 LOG("USB_IRQHandler _rootHubStatusChange %0x->%0x \r\n", _controller._rootHubStatusChange, _controller._rootHubStatusChange+1);
p07gbar 0:1151e4446dbc 978 _controller._rootHubStatusChange++; // Just flag the controller, will be processed in USBLoop
p07gbar 0:1151e4446dbc 979 }
p07gbar 0:1151e4446dbc 980
p07gbar 0:1151e4446dbc 981 u32 head = 0;
p07gbar 0:1151e4446dbc 982 if (int_status & WritebackDoneHead)
p07gbar 0:1151e4446dbc 983 {
p07gbar 0:1151e4446dbc 984 head = _controller.CommunicationArea.DoneHead; // Writeback Done
p07gbar 0:1151e4446dbc 985 _controller.CommunicationArea.DoneHead = 0;
p07gbar 0:1151e4446dbc 986 LOG("USB_IRQHandler head=%0x\r\n",head);
p07gbar 0:1151e4446dbc 987 }
p07gbar 0:1151e4446dbc 988 LPC_USB->HcInterruptStatus = int_status;
p07gbar 0:1151e4446dbc 989
p07gbar 0:1151e4446dbc 990 if (head)
p07gbar 0:1151e4446dbc 991 _controller.ProcessDoneQueue(head); // TODO - low bit can be set BUGBUG
p07gbar 0:1151e4446dbc 992 LOG("USB_IRQHandler end \r\n");
p07gbar 0:1151e4446dbc 993 }
p07gbar 0:1151e4446dbc 994
p07gbar 0:1151e4446dbc 995 //====================================================================================
p07gbar 0:1151e4446dbc 996 //====================================================================================
p07gbar 0:1151e4446dbc 997 // API Methods
p07gbar 0:1151e4446dbc 998
p07gbar 0:1151e4446dbc 999 void USBInit()
p07gbar 0:1151e4446dbc 1000 {
p07gbar 0:1151e4446dbc 1001 return _controller.Init();
p07gbar 0:1151e4446dbc 1002 }
p07gbar 0:1151e4446dbc 1003
p07gbar 0:1151e4446dbc 1004 void USBLoop()
p07gbar 0:1151e4446dbc 1005 {
p07gbar 0:1151e4446dbc 1006 return _controller.Loop();
p07gbar 0:1151e4446dbc 1007 }
p07gbar 0:1151e4446dbc 1008
p07gbar 0:1151e4446dbc 1009 u8* USBGetBuffer(u32* len)
p07gbar 0:1151e4446dbc 1010 {
p07gbar 0:1151e4446dbc 1011 *len = USB_RAM_SIZE - sizeof(HostController);
p07gbar 0:1151e4446dbc 1012 return _controller.SRAM;
p07gbar 0:1151e4446dbc 1013 }
p07gbar 0:1151e4446dbc 1014
p07gbar 0:1151e4446dbc 1015 static Setup* GetSetup(int device)
p07gbar 0:1151e4446dbc 1016 {
p07gbar 0:1151e4446dbc 1017 if (device == 0)
p07gbar 0:1151e4446dbc 1018 return &_controller._setupZero;
p07gbar 0:1151e4446dbc 1019
p07gbar 0:1151e4446dbc 1020 if (device < 1 || device > MAX_DEVICES)
p07gbar 0:1151e4446dbc 1021 return 0;
p07gbar 0:1151e4446dbc 1022 return &_controller.Devices[device-1].SetupBuffer;
p07gbar 0:1151e4446dbc 1023 }
p07gbar 0:1151e4446dbc 1024
p07gbar 0:1151e4446dbc 1025 // Loop until IO on endpoint is complete
p07gbar 0:1151e4446dbc 1026 static int WaitIODone(Endpoint* endpoint)
p07gbar 0:1151e4446dbc 1027 {
p07gbar 0:1151e4446dbc 1028 LOG("WaitIODone start\r\n");
p07gbar 0:1151e4446dbc 1029 if (endpoint->CurrentState == Endpoint::NotQueued)
p07gbar 0:1151e4446dbc 1030 return 0;
p07gbar 0:1151e4446dbc 1031 while (endpoint->CurrentState != Endpoint::Idle)
p07gbar 0:1151e4446dbc 1032 {
p07gbar 0:1151e4446dbc 1033 LOG("WaitIODone goto USBloop endpoint->CurrentState =%d \r\n",endpoint->CurrentState);
p07gbar 0:1151e4446dbc 1034 USBLoop(); // May generate callbacks, mount or unmount devices etc
p07gbar 0:1151e4446dbc 1035 }
p07gbar 0:1151e4446dbc 1036 int status = endpoint->Status();
p07gbar 0:1151e4446dbc 1037
p07gbar 0:1151e4446dbc 1038 LOG("WaitIODone end\r\n");
p07gbar 0:1151e4446dbc 1039 if (status == 0)
p07gbar 0:1151e4446dbc 1040 return endpoint->Length;
p07gbar 0:1151e4446dbc 1041 return -status;
p07gbar 0:1151e4446dbc 1042 }
p07gbar 0:1151e4446dbc 1043
p07gbar 0:1151e4446dbc 1044 int USBTransfer(int device, int ep, u8 flags, u8* data, int length, USBCallback callback, void* userData)
p07gbar 0:1151e4446dbc 1045 {
p07gbar 0:1151e4446dbc 1046 //LOG("USBTRANSFER start\r\n");
p07gbar 0:1151e4446dbc 1047 Endpoint* endpoint = _controller.GetEndpoint(device,ep);
p07gbar 0:1151e4446dbc 1048 if (!endpoint)
p07gbar 0:1151e4446dbc 1049 {
p07gbar 0:1151e4446dbc 1050 LOG("USBTRANSFER error Endpoint not found!!\r\n");
p07gbar 0:1151e4446dbc 1051 return ERR_ENDPOINT_NOT_FOUND;
p07gbar 0:1151e4446dbc 1052 }
p07gbar 0:1151e4446dbc 1053
p07gbar 0:1151e4446dbc 1054 //LOG("USBTRANSFER run01\r\n");
p07gbar 0:1151e4446dbc 1055 WaitIODone(endpoint);
p07gbar 0:1151e4446dbc 1056 endpoint->Flags = flags;
p07gbar 0:1151e4446dbc 1057 endpoint->Data = data;
p07gbar 0:1151e4446dbc 1058 endpoint->Length = length;
p07gbar 0:1151e4446dbc 1059 endpoint->Callback = callback;
p07gbar 0:1151e4446dbc 1060 endpoint->UserData = userData;
p07gbar 0:1151e4446dbc 1061 //LOG("USBTRANSFER run02\r\n");
p07gbar 0:1151e4446dbc 1062 if (ep == 0)
p07gbar 0:1151e4446dbc 1063 {
p07gbar 0:1151e4446dbc 1064 LOG("USBTRANSFER ep == 0(Setup) ------------------------------\r\n");
p07gbar 0:1151e4446dbc 1065 _controller.Transfer(endpoint,TOKEN_SETUP,(u8*)GetSetup(device),8,Endpoint::SetupQueued);
p07gbar 0:1151e4446dbc 1066 }
p07gbar 0:1151e4446dbc 1067 else
p07gbar 0:1151e4446dbc 1068 {
p07gbar 0:1151e4446dbc 1069 LOG("USBTRANSFER ep != 0\r\n");
p07gbar 0:1151e4446dbc 1070 _controller.Transfer(endpoint,flags & 0x80 ? TOKEN_IN : TOKEN_OUT,data,length,Endpoint::DataQueued);
p07gbar 0:1151e4446dbc 1071 }
p07gbar 0:1151e4446dbc 1072 if (callback)
p07gbar 0:1151e4446dbc 1073 {
p07gbar 0:1151e4446dbc 1074 LOG("USBTRANSFER end io_pending\r\n");
p07gbar 0:1151e4446dbc 1075 return IO_PENDING;
p07gbar 0:1151e4446dbc 1076 }
p07gbar 0:1151e4446dbc 1077 LOG("USBTRANSFER end wait io done \r\n");
p07gbar 0:1151e4446dbc 1078 return WaitIODone(endpoint);
p07gbar 0:1151e4446dbc 1079 }
p07gbar 0:1151e4446dbc 1080
p07gbar 0:1151e4446dbc 1081 int USBControlTransfer(int device, int request_type, int request, int value, int index, u8* data, int length, USBCallback callback, void * userData)
p07gbar 0:1151e4446dbc 1082 {
p07gbar 0:1151e4446dbc 1083 Setup* setup = GetSetup(device);
p07gbar 0:1151e4446dbc 1084 if (!setup)
p07gbar 0:1151e4446dbc 1085 return ERR_DEVICE_NOT_FOUND;
p07gbar 0:1151e4446dbc 1086
p07gbar 0:1151e4446dbc 1087 // Async control calls may overwrite setup buffer of previous call, so we need to wait before setting up next call
p07gbar 0:1151e4446dbc 1088 WaitIODone(_controller.GetEndpoint(device,0));
p07gbar 0:1151e4446dbc 1089
p07gbar 0:1151e4446dbc 1090 setup->bm_request_type = request_type;
p07gbar 0:1151e4446dbc 1091 setup->b_request = request;
p07gbar 0:1151e4446dbc 1092 setup->w_value = value;
p07gbar 0:1151e4446dbc 1093 setup->w_index = index;
p07gbar 0:1151e4446dbc 1094 setup->w_length = length;
p07gbar 0:1151e4446dbc 1095 LOG("USBControlTransfer(device=%d,reqtype=%d,req=%d,value=%d,index=%d,data=%p,len=%d,callbak=%p,udata=%p)\r\n",
p07gbar 0:1151e4446dbc 1096 device,request_type,request,value,index,data,length,callback,userData);
p07gbar 0:1151e4446dbc 1097 return USBTransfer(device,0,request_type & DEVICE_TO_HOST,data,length,callback,userData);
p07gbar 0:1151e4446dbc 1098 }
p07gbar 0:1151e4446dbc 1099
p07gbar 0:1151e4446dbc 1100 int USBInterruptTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
p07gbar 0:1151e4446dbc 1101 {
p07gbar 0:1151e4446dbc 1102 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_INTERRUPT,data,length,callback,userData);
p07gbar 0:1151e4446dbc 1103 }
p07gbar 0:1151e4446dbc 1104
p07gbar 0:1151e4446dbc 1105 int USBBulkTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData)
p07gbar 0:1151e4446dbc 1106 {
p07gbar 0:1151e4446dbc 1107 return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_BULK,data,length,callback,userData);
p07gbar 0:1151e4446dbc 1108 }
p07gbar 0:1151e4446dbc 1109
p07gbar 0:1151e4446dbc 1110 int GetDescriptor(int device, int descType,int descIndex, u8* data, int length)
p07gbar 0:1151e4446dbc 1111 {
p07gbar 0:1151e4446dbc 1112 return USBControlTransfer(device,DEVICE_TO_HOST | RECIPIENT_DEVICE, GET_DESCRIPTOR,(descType << 8)|(descIndex), 0, data, length, 0);
p07gbar 0:1151e4446dbc 1113 }
p07gbar 0:1151e4446dbc 1114
p07gbar 0:1151e4446dbc 1115 int GetString(int device, int index, char* dst, int length)
p07gbar 0:1151e4446dbc 1116 {
p07gbar 0:1151e4446dbc 1117 u8 buffer[255];
p07gbar 0:1151e4446dbc 1118 int le = GetDescriptor(device,DESCRIPTOR_TYPE_STRING,index,buffer,sizeof(buffer));
p07gbar 0:1151e4446dbc 1119 if (le < 0)
p07gbar 0:1151e4446dbc 1120 return le;
p07gbar 0:1151e4446dbc 1121 if (length < 1)
p07gbar 0:1151e4446dbc 1122 return -1;
p07gbar 0:1151e4446dbc 1123 length <<= 1;
p07gbar 0:1151e4446dbc 1124 if (le > length)
p07gbar 0:1151e4446dbc 1125 le = length;
p07gbar 0:1151e4446dbc 1126 for (int j = 2; j < le; j += 2)
p07gbar 0:1151e4446dbc 1127 *dst++ = buffer[j];
p07gbar 0:1151e4446dbc 1128 *dst = 0;
p07gbar 0:1151e4446dbc 1129 return (le>>1)-1;
p07gbar 0:1151e4446dbc 1130 }
p07gbar 0:1151e4446dbc 1131
p07gbar 0:1151e4446dbc 1132 int SetAddress(int device, int new_addr)
p07gbar 0:1151e4446dbc 1133 {
p07gbar 0:1151e4446dbc 1134 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_ADDRESS, new_addr, 0, 0, 0, 0);
p07gbar 0:1151e4446dbc 1135 }
p07gbar 0:1151e4446dbc 1136
p07gbar 0:1151e4446dbc 1137 int SetConfiguration(int device, int configNum)
p07gbar 0:1151e4446dbc 1138 {
p07gbar 0:1151e4446dbc 1139 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_CONFIGURATION, configNum, 0, 0, 0, 0);
p07gbar 0:1151e4446dbc 1140 }
p07gbar 0:1151e4446dbc 1141
p07gbar 0:1151e4446dbc 1142 int SetInterface(int device, int ifNum, int altNum)
p07gbar 0:1151e4446dbc 1143 {
p07gbar 0:1151e4446dbc 1144 return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_INTERFACE, SET_INTERFACE, altNum, ifNum, 0, 0, 0);
p07gbar 0:1151e4446dbc 1145 }
p07gbar 0:1151e4446dbc 1146
p07gbar 0:1151e4446dbc 1147 // HUB stuff
p07gbar 0:1151e4446dbc 1148 int SetPortFeature(int device, int feature, int index)
p07gbar 0:1151e4446dbc 1149 {
p07gbar 0:1151e4446dbc 1150 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,SET_FEATURE,feature,index,0,0);
p07gbar 0:1151e4446dbc 1151 }
p07gbar 0:1151e4446dbc 1152
p07gbar 0:1151e4446dbc 1153 int ClearPortFeature(int device, int feature, int index)
p07gbar 0:1151e4446dbc 1154 {
p07gbar 0:1151e4446dbc 1155 return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,CLEAR_FEATURE,feature,index,0,0);
p07gbar 0:1151e4446dbc 1156 }
p07gbar 0:1151e4446dbc 1157
p07gbar 0:1151e4446dbc 1158 int SetPortPower(int device, int port)
p07gbar 0:1151e4446dbc 1159 {
p07gbar 0:1151e4446dbc 1160 int r = SetPortFeature(device,PORT_POWER,port);
p07gbar 0:1151e4446dbc 1161 _controller.DelayMS(20); // 80ms to turn on a hubs power... DESCRIPTOR? todo
p07gbar 0:1151e4446dbc 1162 return r;
p07gbar 0:1151e4446dbc 1163 }
p07gbar 0:1151e4446dbc 1164
p07gbar 0:1151e4446dbc 1165 int SetPortReset(int device, int port)
p07gbar 0:1151e4446dbc 1166 {
p07gbar 0:1151e4446dbc 1167 return SetPortFeature(device,PORT_RESET,port);
p07gbar 0:1151e4446dbc 1168 }
p07gbar 0:1151e4446dbc 1169
p07gbar 0:1151e4446dbc 1170 int GetPortStatus(int device, int port, u32* status)
p07gbar 0:1151e4446dbc 1171 {
p07gbar 0:1151e4446dbc 1172 return USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,GET_STATUS,0,port,(u8*)status,4);
p07gbar 0:1151e4446dbc 1173 }
p07gbar 0:1151e4446dbc 1174
p07gbar 0:1151e4446dbc 1175 #endif