Sergio Collado
this is the Peter Barrett USBHostShell program, a bit modified for being a bit more talkactive, just to let u know how the USB protocol layer is going on, and all the data trasnfers. Also there is a small implementation of HID descriptors, but not functional... yet :S the aim is to at least implement the gamepad HID, and make an array of function pointer to each HID function
USBHost.cpp@0:e1e03118b8fe, 2010-09-13 (annotated)
- Committer:
- Sergio
- Date:
- Mon Sep 13 12:40:05 2010 +0000
- Revision:
- 0:e1e03118b8fe
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| Sergio | 0:e1e03118b8fe | 1 | |
| Sergio | 0:e1e03118b8fe | 2 | /* |
| Sergio | 0:e1e03118b8fe | 3 | I changed a bit the code but all credit goes to the amazing work of : |
| Sergio | 0:e1e03118b8fe | 4 | |
| Sergio | 0:e1e03118b8fe | 5 | Copyright (c) 2010 Peter Barrett |
| Sergio | 0:e1e03118b8fe | 6 | |
| Sergio | 0:e1e03118b8fe | 7 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| Sergio | 0:e1e03118b8fe | 8 | of this software and associated documentation files (the "Software"), to deal |
| Sergio | 0:e1e03118b8fe | 9 | in the Software without restriction, including without limitation the rights |
| Sergio | 0:e1e03118b8fe | 10 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| Sergio | 0:e1e03118b8fe | 11 | copies of the Software, and to permit persons to whom the Software is |
| Sergio | 0:e1e03118b8fe | 12 | furnished to do so, subject to the following conditions: |
| Sergio | 0:e1e03118b8fe | 13 | |
| Sergio | 0:e1e03118b8fe | 14 | The above copyright notice and this permission notice shall be included in |
| Sergio | 0:e1e03118b8fe | 15 | all copies or substantial portions of the Software. |
| Sergio | 0:e1e03118b8fe | 16 | |
| Sergio | 0:e1e03118b8fe | 17 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| Sergio | 0:e1e03118b8fe | 18 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| Sergio | 0:e1e03118b8fe | 19 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| Sergio | 0:e1e03118b8fe | 20 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| Sergio | 0:e1e03118b8fe | 21 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| Sergio | 0:e1e03118b8fe | 22 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| Sergio | 0:e1e03118b8fe | 23 | THE SOFTWARE. |
| Sergio | 0:e1e03118b8fe | 24 | */ |
| Sergio | 0:e1e03118b8fe | 25 | |
| Sergio | 0:e1e03118b8fe | 26 | #include "mbed.h" |
| Sergio | 0:e1e03118b8fe | 27 | #include "USBHost.h" |
| Sergio | 0:e1e03118b8fe | 28 | |
| Sergio | 0:e1e03118b8fe | 29 | // Config (default uses x bytes) |
| Sergio | 0:e1e03118b8fe | 30 | #define MAX_DEVICES 8 // Max number of devices |
| Sergio | 0:e1e03118b8fe | 31 | #define MAX_ENDPOINTS_TOTAL 16 // Max number of endpoints total |
| Sergio | 0:e1e03118b8fe | 32 | #define MAX_ENDPOINTS_PER_DEVICE 8 // Max number of endpoints for any one device |
| Sergio | 0:e1e03118b8fe | 33 | |
| Sergio | 0:e1e03118b8fe | 34 | #define USBLOG 1 |
| Sergio | 0:e1e03118b8fe | 35 | #if USBLOG |
| Sergio | 0:e1e03118b8fe | 36 | #define LOG(...) printf(__VA_ARGS__) |
| Sergio | 0:e1e03118b8fe | 37 | #else |
| Sergio | 0:e1e03118b8fe | 38 | #define LOG(...) do {} while(0) |
| Sergio | 0:e1e03118b8fe | 39 | #endif |
| Sergio | 0:e1e03118b8fe | 40 | |
| Sergio | 0:e1e03118b8fe | 41 | // USB host structures |
| Sergio | 0:e1e03118b8fe | 42 | |
| Sergio | 0:e1e03118b8fe | 43 | #define USB_RAM_SIZE 16*1024 // AHB SRAM block 1 TODO MACHINE DEPENDENT |
| Sergio | 0:e1e03118b8fe | 44 | #define USB_RAM_BASE 0x2007C000 |
| Sergio | 0:e1e03118b8fe | 45 | |
| Sergio | 0:e1e03118b8fe | 46 | #define TOKEN_SETUP 0 |
| Sergio | 0:e1e03118b8fe | 47 | #define TOKEN_IN 1 |
| Sergio | 0:e1e03118b8fe | 48 | #define TOKEN_OUT 2 |
| Sergio | 0:e1e03118b8fe | 49 | |
| Sergio | 0:e1e03118b8fe | 50 | // Status flags from hub |
| Sergio | 0:e1e03118b8fe | 51 | #define PORT_CONNECTION 0 |
| Sergio | 0:e1e03118b8fe | 52 | #define PORT_ENABLE 1 |
| Sergio | 0:e1e03118b8fe | 53 | #define PORT_SUSPEND 2 |
| Sergio | 0:e1e03118b8fe | 54 | #define PORT_OVER_CURRENT 3 |
| Sergio | 0:e1e03118b8fe | 55 | #define PORT_RESET 4 |
| Sergio | 0:e1e03118b8fe | 56 | #define PORT_POWER 8 |
| Sergio | 0:e1e03118b8fe | 57 | #define PORT_LOW_SPEED 9 |
| Sergio | 0:e1e03118b8fe | 58 | |
| Sergio | 0:e1e03118b8fe | 59 | #define C_PORT_CONNECTION 16 |
| Sergio | 0:e1e03118b8fe | 60 | #define C_PORT_ENABLE 17 |
| Sergio | 0:e1e03118b8fe | 61 | #define C_PORT_SUSPEND 18 |
| Sergio | 0:e1e03118b8fe | 62 | #define C_PORT_OVER_CURRENT 19 |
| Sergio | 0:e1e03118b8fe | 63 | #define C_PORT_RESET 20 |
| Sergio | 0:e1e03118b8fe | 64 | |
| Sergio | 0:e1e03118b8fe | 65 | typedef struct { |
| Sergio | 0:e1e03118b8fe | 66 | u8 bm_request_type; |
| Sergio | 0:e1e03118b8fe | 67 | u8 b_request; |
| Sergio | 0:e1e03118b8fe | 68 | u16 w_value; |
| Sergio | 0:e1e03118b8fe | 69 | u16 w_index; |
| Sergio | 0:e1e03118b8fe | 70 | u16 w_length; |
| Sergio | 0:e1e03118b8fe | 71 | } Setup; |
| Sergio | 0:e1e03118b8fe | 72 | |
| Sergio | 0:e1e03118b8fe | 73 | |
| Sergio | 0:e1e03118b8fe | 74 | // Hub stuff is kept private just to keep api simple |
| Sergio | 0:e1e03118b8fe | 75 | int SetPortFeature(int device, int feature, int index); |
| Sergio | 0:e1e03118b8fe | 76 | int ClearPortFeature(int device, int feature, int index); |
| Sergio | 0:e1e03118b8fe | 77 | int SetPortPower(int device, int port); |
| Sergio | 0:e1e03118b8fe | 78 | int SetPortReset(int device, int port); |
| Sergio | 0:e1e03118b8fe | 79 | int GetPortStatus(int device, int port, u32* status); |
| Sergio | 0:e1e03118b8fe | 80 | |
| Sergio | 0:e1e03118b8fe | 81 | //=================================================================== |
| Sergio | 0:e1e03118b8fe | 82 | //=================================================================== |
| Sergio | 0:e1e03118b8fe | 83 | // Hardware defines |
| Sergio | 0:e1e03118b8fe | 84 | |
| Sergio | 0:e1e03118b8fe | 85 | // HcControl |
| Sergio | 0:e1e03118b8fe | 86 | #define PeriodicListEnable 0x00000004 |
| Sergio | 0:e1e03118b8fe | 87 | #define IsochronousEnable 0x00000008 |
| Sergio | 0:e1e03118b8fe | 88 | #define ControlListEnable 0x00000010 |
| Sergio | 0:e1e03118b8fe | 89 | #define BulkListEnable 0x00000020 |
| Sergio | 0:e1e03118b8fe | 90 | #define OperationalMask 0x00000080 |
| Sergio | 0:e1e03118b8fe | 91 | #define HostControllerFunctionalState 0x000000C0 |
| Sergio | 0:e1e03118b8fe | 92 | |
| Sergio | 0:e1e03118b8fe | 93 | // HcCommandStatus |
| Sergio | 0:e1e03118b8fe | 94 | #define HostControllerReset 0x00000001 |
| Sergio | 0:e1e03118b8fe | 95 | #define ControlListFilled 0x00000002 |
| Sergio | 0:e1e03118b8fe | 96 | #define BulkListFilled 0x00000004 |
| Sergio | 0:e1e03118b8fe | 97 | |
| Sergio | 0:e1e03118b8fe | 98 | // HcInterruptStatus Register |
| Sergio | 0:e1e03118b8fe | 99 | #define WritebackDoneHead 0x00000002 |
| Sergio | 0:e1e03118b8fe | 100 | #define StartofFrame 0x00000004 |
| Sergio | 0:e1e03118b8fe | 101 | #define ResumeDetected 0x00000008 |
| Sergio | 0:e1e03118b8fe | 102 | #define UnrecoverableError 0x00000010 |
| Sergio | 0:e1e03118b8fe | 103 | #define FrameNumberOverflow 0x00000020 |
| Sergio | 0:e1e03118b8fe | 104 | #define RootHubStatusChange 0x00000040 |
| Sergio | 0:e1e03118b8fe | 105 | #define OwnershipChange 0x00000080 |
| Sergio | 0:e1e03118b8fe | 106 | #define MasterInterruptEnable 0x80000000 |
| Sergio | 0:e1e03118b8fe | 107 | |
| Sergio | 0:e1e03118b8fe | 108 | // HcRhStatus |
| Sergio | 0:e1e03118b8fe | 109 | #define SetGlobalPower 0x00010000 |
| Sergio | 0:e1e03118b8fe | 110 | #define DeviceRemoteWakeupEnable 0x00008000 |
| Sergio | 0:e1e03118b8fe | 111 | |
| Sergio | 0:e1e03118b8fe | 112 | // HcRhPortStatus (hub 0, port 1) |
| Sergio | 0:e1e03118b8fe | 113 | #define CurrentConnectStatus 0x00000001 |
| Sergio | 0:e1e03118b8fe | 114 | #define PortEnableStatus 0x00000002 |
| Sergio | 0:e1e03118b8fe | 115 | #define PortSuspendStatus 0x00000004 |
| Sergio | 0:e1e03118b8fe | 116 | #define PortOverCurrentIndicator 0x00000008 |
| Sergio | 0:e1e03118b8fe | 117 | #define PortResetStatus 0x00000010 |
| Sergio | 0:e1e03118b8fe | 118 | |
| Sergio | 0:e1e03118b8fe | 119 | #define PortPowerStatus 0x00000100 |
| Sergio | 0:e1e03118b8fe | 120 | #define LowspeedDevice 0x00000200 |
| Sergio | 0:e1e03118b8fe | 121 | #define HighspeedDevice 0x00000400 |
| Sergio | 0:e1e03118b8fe | 122 | |
| Sergio | 0:e1e03118b8fe | 123 | #define ConnectStatusChange (CurrentConnectStatus << 16) |
| Sergio | 0:e1e03118b8fe | 124 | #define PortResetStatusChange (PortResetStatus << 16) |
| Sergio | 0:e1e03118b8fe | 125 | |
| Sergio | 0:e1e03118b8fe | 126 | |
| Sergio | 0:e1e03118b8fe | 127 | #define TD_ROUNDING (u32)0x00040000 |
| Sergio | 0:e1e03118b8fe | 128 | #define TD_SETUP (u32)0x00000000 |
| Sergio | 0:e1e03118b8fe | 129 | #define TD_IN (u32)0x00100000 |
| Sergio | 0:e1e03118b8fe | 130 | #define TD_OUT (u32)0x00080000 |
| Sergio | 0:e1e03118b8fe | 131 | #define TD_DELAY_INT(x) (u32)((x) << 21) |
| Sergio | 0:e1e03118b8fe | 132 | #define TD_TOGGLE_0 (u32)0x02000000 |
| Sergio | 0:e1e03118b8fe | 133 | #define TD_TOGGLE_1 (u32)0x03000000 |
| Sergio | 0:e1e03118b8fe | 134 | #define TD_CC (u32)0xF0000000 |
| Sergio | 0:e1e03118b8fe | 135 | |
| Sergio | 0:e1e03118b8fe | 136 | // HostController EndPoint Descriptor |
| Sergio | 0:e1e03118b8fe | 137 | typedef struct { |
| Sergio | 0:e1e03118b8fe | 138 | volatile u32 Control; |
| Sergio | 0:e1e03118b8fe | 139 | volatile u32 TailTd; |
| Sergio | 0:e1e03118b8fe | 140 | volatile u32 HeadTd; |
| Sergio | 0:e1e03118b8fe | 141 | volatile u32 Next; |
| Sergio | 0:e1e03118b8fe | 142 | } HCED; |
| Sergio | 0:e1e03118b8fe | 143 | |
| Sergio | 0:e1e03118b8fe | 144 | // HostController Transfer Descriptor |
| Sergio | 0:e1e03118b8fe | 145 | typedef struct { |
| Sergio | 0:e1e03118b8fe | 146 | volatile u32 Control; |
| Sergio | 0:e1e03118b8fe | 147 | volatile u32 CurrBufPtr; |
| Sergio | 0:e1e03118b8fe | 148 | volatile u32 Next; |
| Sergio | 0:e1e03118b8fe | 149 | volatile u32 BufEnd; |
| Sergio | 0:e1e03118b8fe | 150 | } HCTD; |
| Sergio | 0:e1e03118b8fe | 151 | |
| Sergio | 0:e1e03118b8fe | 152 | // Host Controller Communication Area |
| Sergio | 0:e1e03118b8fe | 153 | typedef struct { |
| Sergio | 0:e1e03118b8fe | 154 | volatile u32 InterruptTable[32]; |
| Sergio | 0:e1e03118b8fe | 155 | volatile u16 FrameNumber; |
| Sergio | 0:e1e03118b8fe | 156 | volatile u16 FrameNumberPad; |
| Sergio | 0:e1e03118b8fe | 157 | volatile u32 DoneHead; |
| Sergio | 0:e1e03118b8fe | 158 | volatile u8 Reserved[120]; |
| Sergio | 0:e1e03118b8fe | 159 | } HCCA; |
| Sergio | 0:e1e03118b8fe | 160 | |
| Sergio | 0:e1e03118b8fe | 161 | //==================================================================================== |
| Sergio | 0:e1e03118b8fe | 162 | //==================================================================================== |
| Sergio | 0:e1e03118b8fe | 163 | |
| Sergio | 0:e1e03118b8fe | 164 | class HostController; |
| Sergio | 0:e1e03118b8fe | 165 | class Endpoint; |
| Sergio | 0:e1e03118b8fe | 166 | class Device; |
| Sergio | 0:e1e03118b8fe | 167 | |
| Sergio | 0:e1e03118b8fe | 168 | // must be 3*16 bytes long |
| Sergio | 0:e1e03118b8fe | 169 | class Endpoint |
| Sergio | 0:e1e03118b8fe | 170 | { |
| Sergio | 0:e1e03118b8fe | 171 | public: |
| Sergio | 0:e1e03118b8fe | 172 | HCED EndpointDescriptor; // Pointer to EndpointDescriptor == Pointer to Endpoint |
| Sergio | 0:e1e03118b8fe | 173 | HCTD TDHead; |
| Sergio | 0:e1e03118b8fe | 174 | |
| Sergio | 0:e1e03118b8fe | 175 | enum State |
| Sergio | 0:e1e03118b8fe | 176 | { |
| Sergio | 0:e1e03118b8fe | 177 | Free, |
| Sergio | 0:e1e03118b8fe | 178 | NotQueued, |
| Sergio | 0:e1e03118b8fe | 179 | Idle, |
| Sergio | 0:e1e03118b8fe | 180 | SetupQueued, |
| Sergio | 0:e1e03118b8fe | 181 | DataQueued, |
| Sergio | 0:e1e03118b8fe | 182 | StatusQueued, |
| Sergio | 0:e1e03118b8fe | 183 | CallbackPending |
| Sergio | 0:e1e03118b8fe | 184 | }; |
| Sergio | 0:e1e03118b8fe | 185 | |
| Sergio | 0:e1e03118b8fe | 186 | volatile u8 CurrentState; |
| Sergio | 0:e1e03118b8fe | 187 | u8 Flags; // 0x80 In, 0x03 mask endpoint type |
| Sergio | 0:e1e03118b8fe | 188 | |
| Sergio | 0:e1e03118b8fe | 189 | u16 Length; |
| Sergio | 0:e1e03118b8fe | 190 | u8* Data; |
| Sergio | 0:e1e03118b8fe | 191 | USBCallback Callback; // Must be a multiple of 16 bytes long |
| Sergio | 0:e1e03118b8fe | 192 | void* UserData; |
| Sergio | 0:e1e03118b8fe | 193 | |
| Sergio | 0:e1e03118b8fe | 194 | int Address() |
| Sergio | 0:e1e03118b8fe | 195 | { |
| Sergio | 0:e1e03118b8fe | 196 | int ep = (EndpointDescriptor.Control >> 7) & 0xF; |
| Sergio | 0:e1e03118b8fe | 197 | if (ep) |
| Sergio | 0:e1e03118b8fe | 198 | ep |= Flags & 0x80; |
| Sergio | 0:e1e03118b8fe | 199 | return ep; |
| Sergio | 0:e1e03118b8fe | 200 | } |
| Sergio | 0:e1e03118b8fe | 201 | |
| Sergio | 0:e1e03118b8fe | 202 | int Device() |
| Sergio | 0:e1e03118b8fe | 203 | { |
| Sergio | 0:e1e03118b8fe | 204 | return EndpointDescriptor.Control & 0x7F; |
| Sergio | 0:e1e03118b8fe | 205 | } |
| Sergio | 0:e1e03118b8fe | 206 | |
| Sergio | 0:e1e03118b8fe | 207 | int Status() |
| Sergio | 0:e1e03118b8fe | 208 | { |
| Sergio | 0:e1e03118b8fe | 209 | return (TDHead.Control >> 28) & 0xF; |
| Sergio | 0:e1e03118b8fe | 210 | } |
| Sergio | 0:e1e03118b8fe | 211 | |
| Sergio | 0:e1e03118b8fe | 212 | u32 Enqueue(u32 head) |
| Sergio | 0:e1e03118b8fe | 213 | { |
| Sergio | 0:e1e03118b8fe | 214 | if (CurrentState == NotQueued) |
| Sergio | 0:e1e03118b8fe | 215 | { |
| Sergio | 0:e1e03118b8fe | 216 | EndpointDescriptor.Next = head; |
| Sergio | 0:e1e03118b8fe | 217 | head = (u32)&EndpointDescriptor; |
| Sergio | 0:e1e03118b8fe | 218 | CurrentState = Idle; |
| Sergio | 0:e1e03118b8fe | 219 | } |
| Sergio | 0:e1e03118b8fe | 220 | return head; |
| Sergio | 0:e1e03118b8fe | 221 | } |
| Sergio | 0:e1e03118b8fe | 222 | }; |
| Sergio | 0:e1e03118b8fe | 223 | |
| Sergio | 0:e1e03118b8fe | 224 | class Device |
| Sergio | 0:e1e03118b8fe | 225 | { |
| Sergio | 0:e1e03118b8fe | 226 | public: |
| Sergio | 0:e1e03118b8fe | 227 | u8 _endpointMap[MAX_ENDPOINTS_PER_DEVICE*2]; |
| Sergio | 0:e1e03118b8fe | 228 | u8 Hub; |
| Sergio | 0:e1e03118b8fe | 229 | u8 Port; |
| Sergio | 0:e1e03118b8fe | 230 | u8 Addr; |
| Sergio | 0:e1e03118b8fe | 231 | u8 Pad; |
| Sergio | 0:e1e03118b8fe | 232 | |
| Sergio | 0:e1e03118b8fe | 233 | // Only if this device is a hub |
| Sergio | 0:e1e03118b8fe | 234 | u8 HubPortCount; // nonzero if this is a hub |
| Sergio | 0:e1e03118b8fe | 235 | u8 HubInterruptData; |
| Sergio | 0:e1e03118b8fe | 236 | u8 HubMap; |
| Sergio | 0:e1e03118b8fe | 237 | u8 HubMask; |
| Sergio | 0:e1e03118b8fe | 238 | |
| Sergio | 0:e1e03118b8fe | 239 | int Flags; // 1 = Disconnected |
| Sergio | 0:e1e03118b8fe | 240 | |
| Sergio | 0:e1e03118b8fe | 241 | Setup SetupBuffer; |
| Sergio | 0:e1e03118b8fe | 242 | |
| Sergio | 0:e1e03118b8fe | 243 | // Allocate endpoint zero |
| Sergio | 0:e1e03118b8fe | 244 | int Init(DeviceDescriptor* d, int hub, int port, int addr, int lowSpeed) |
| Sergio | 0:e1e03118b8fe | 245 | { |
| Sergio | 0:e1e03118b8fe | 246 | Hub = hub; |
| Sergio | 0:e1e03118b8fe | 247 | Port = port; |
| Sergio | 0:e1e03118b8fe | 248 | Addr = addr; |
| Sergio | 0:e1e03118b8fe | 249 | Flags = lowSpeed; |
| Sergio | 0:e1e03118b8fe | 250 | memset(_endpointMap,0xFF,sizeof(_endpointMap)); |
| Sergio | 0:e1e03118b8fe | 251 | return 0; |
| Sergio | 0:e1e03118b8fe | 252 | } |
| Sergio | 0:e1e03118b8fe | 253 | |
| Sergio | 0:e1e03118b8fe | 254 | int SetEndpointIndex(int ep, int endpointIndex) |
| Sergio | 0:e1e03118b8fe | 255 | { |
| Sergio | 0:e1e03118b8fe | 256 | for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2) |
| Sergio | 0:e1e03118b8fe | 257 | { |
| Sergio | 0:e1e03118b8fe | 258 | if (_endpointMap[i] == 0xFF) // Add endpoint to map |
| Sergio | 0:e1e03118b8fe | 259 | { |
| Sergio | 0:e1e03118b8fe | 260 | _endpointMap[i] = ep; |
| Sergio | 0:e1e03118b8fe | 261 | _endpointMap[i+1] = endpointIndex; |
| Sergio | 0:e1e03118b8fe | 262 | return 0; |
| Sergio | 0:e1e03118b8fe | 263 | } |
| Sergio | 0:e1e03118b8fe | 264 | } |
| Sergio | 0:e1e03118b8fe | 265 | return ERR_ENDPOINT_NONE_LEFT; |
| Sergio | 0:e1e03118b8fe | 266 | } |
| Sergio | 0:e1e03118b8fe | 267 | |
| Sergio | 0:e1e03118b8fe | 268 | int GetEndpointIndex(int ep) |
| Sergio | 0:e1e03118b8fe | 269 | { |
| Sergio | 0:e1e03118b8fe | 270 | for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2) |
| Sergio | 0:e1e03118b8fe | 271 | { |
| Sergio | 0:e1e03118b8fe | 272 | if (_endpointMap[i] == ep) |
| Sergio | 0:e1e03118b8fe | 273 | return _endpointMap[i+1]; |
| Sergio | 0:e1e03118b8fe | 274 | if (_endpointMap[i] == 0xFF) |
| Sergio | 0:e1e03118b8fe | 275 | break; |
| Sergio | 0:e1e03118b8fe | 276 | } |
| Sergio | 0:e1e03118b8fe | 277 | return -1; |
| Sergio | 0:e1e03118b8fe | 278 | } |
| Sergio | 0:e1e03118b8fe | 279 | }; |
| Sergio | 0:e1e03118b8fe | 280 | |
| Sergio | 0:e1e03118b8fe | 281 | class HostController |
| Sergio | 0:e1e03118b8fe | 282 | { |
| Sergio | 0:e1e03118b8fe | 283 | public: |
| Sergio | 0:e1e03118b8fe | 284 | HCCA CommunicationArea; |
| Sergio | 0:e1e03118b8fe | 285 | Endpoint Endpoints[MAX_ENDPOINTS_TOTAL]; // Multiple of 16 |
| Sergio | 0:e1e03118b8fe | 286 | |
| Sergio | 0:e1e03118b8fe | 287 | Endpoint EndpointZero; // For device enumeration |
| Sergio | 0:e1e03118b8fe | 288 | HCTD _commonTail; |
| Sergio | 0:e1e03118b8fe | 289 | Setup _setupZero; |
| Sergio | 0:e1e03118b8fe | 290 | |
| Sergio | 0:e1e03118b8fe | 291 | Device Devices[MAX_DEVICES]; |
| Sergio | 0:e1e03118b8fe | 292 | u32 _frameNumber; // 32 bit ms counter |
| Sergio | 0:e1e03118b8fe | 293 | |
| Sergio | 0:e1e03118b8fe | 294 | u8 _callbacksPending; // Endpoints with callbacks are pending, set from ISR via ProcessDoneQueue |
| Sergio | 0:e1e03118b8fe | 295 | u8 _rootHubStatusChange; // Root hub status has changed, set from ISR |
| Sergio | 0:e1e03118b8fe | 296 | u8 _unused0; |
| Sergio | 0:e1e03118b8fe | 297 | u8 _unused1; |
| Sergio | 0:e1e03118b8fe | 298 | |
| Sergio | 0:e1e03118b8fe | 299 | u8 _connectPending; // Reset has initiated a connect |
| Sergio | 0:e1e03118b8fe | 300 | u8 _connectCountdown; // Number of ms left after reset before we can connect |
| Sergio | 0:e1e03118b8fe | 301 | u8 _connectHub; // Will connect on this hub |
| Sergio | 0:e1e03118b8fe | 302 | u8 _connectPort; // ... and this port |
| Sergio | 0:e1e03118b8fe | 303 | |
| Sergio | 0:e1e03118b8fe | 304 | u8 SRAM[0]; // Start of free SRAM |
| Sergio | 0:e1e03118b8fe | 305 | |
| Sergio | 0:e1e03118b8fe | 306 | void Loop() |
| Sergio | 0:e1e03118b8fe | 307 | { |
| Sergio | 0:e1e03118b8fe | 308 | u16 elapsed = CommunicationArea.FrameNumber - (u16)_frameNumber; // extend to 32 bits |
| Sergio | 0:e1e03118b8fe | 309 | _frameNumber += elapsed; |
| Sergio | 0:e1e03118b8fe | 310 | |
| Sergio | 0:e1e03118b8fe | 311 | // Do callbacks, if any |
| Sergio | 0:e1e03118b8fe | 312 | while (_callbacksPending) |
| Sergio | 0:e1e03118b8fe | 313 | { |
| Sergio | 0:e1e03118b8fe | 314 | for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++) |
| Sergio | 0:e1e03118b8fe | 315 | { |
| Sergio | 0:e1e03118b8fe | 316 | Endpoint* endpoint = Endpoints + i; |
| Sergio | 0:e1e03118b8fe | 317 | if (endpoint->CurrentState == Endpoint::CallbackPending) |
| Sergio | 0:e1e03118b8fe | 318 | { |
| Sergio | 0:e1e03118b8fe | 319 | _callbacksPending--; |
| Sergio | 0:e1e03118b8fe | 320 | endpoint->CurrentState = Endpoint::Idle; |
| Sergio | 0:e1e03118b8fe | 321 | //remember: |
| Sergio | 0:e1e03118b8fe | 322 | //typedef void (*USBCallback)(int device, int endpoint, int status, u8* data, int len, void* userData); |
| Sergio | 0:e1e03118b8fe | 323 | endpoint->Callback(endpoint->Device(),endpoint->Address(),endpoint->Status(),endpoint->Data,endpoint->Length,endpoint->UserData); |
| Sergio | 0:e1e03118b8fe | 324 | |
| Sergio | 0:e1e03118b8fe | 325 | } |
| Sergio | 0:e1e03118b8fe | 326 | } |
| Sergio | 0:e1e03118b8fe | 327 | } |
| Sergio | 0:e1e03118b8fe | 328 | |
| Sergio | 0:e1e03118b8fe | 329 | // Deal with changes on the root hub |
| Sergio | 0:e1e03118b8fe | 330 | if (_rootHubStatusChange) |
| Sergio | 0:e1e03118b8fe | 331 | { |
| Sergio | 0:e1e03118b8fe | 332 | u32 status = LPC_USB->HcRhPortStatus1; |
| Sergio | 0:e1e03118b8fe | 333 | _rootHubStatusChange = 0; |
| Sergio | 0:e1e03118b8fe | 334 | if (status >> 16) |
| Sergio | 0:e1e03118b8fe | 335 | { |
| Sergio | 0:e1e03118b8fe | 336 | HubStatusChange(0,1,status); |
| Sergio | 0:e1e03118b8fe | 337 | LPC_USB->HcRhPortStatus1 = status & 0xFFFF0000; // clear status changes |
| Sergio | 0:e1e03118b8fe | 338 | } |
| Sergio | 0:e1e03118b8fe | 339 | |
| Sergio | 0:e1e03118b8fe | 340 | } |
| Sergio | 0:e1e03118b8fe | 341 | |
| Sergio | 0:e1e03118b8fe | 342 | // Connect after reset timeout |
| Sergio | 0:e1e03118b8fe | 343 | if (_connectCountdown) |
| Sergio | 0:e1e03118b8fe | 344 | { |
| Sergio | 0:e1e03118b8fe | 345 | if (elapsed >= _connectCountdown) |
| Sergio | 0:e1e03118b8fe | 346 | { |
| Sergio | 0:e1e03118b8fe | 347 | _connectCountdown = 0; |
| Sergio | 0:e1e03118b8fe | 348 | Connect(_connectHub,_connectPort & 0x7F,_connectPort & 0x80); |
| Sergio | 0:e1e03118b8fe | 349 | } else |
| Sergio | 0:e1e03118b8fe | 350 | _connectCountdown -= elapsed; |
| Sergio | 0:e1e03118b8fe | 351 | } |
| Sergio | 0:e1e03118b8fe | 352 | }// END OF VOID LOOP() |
| Sergio | 0:e1e03118b8fe | 353 | |
| Sergio | 0:e1e03118b8fe | 354 | |
| Sergio | 0:e1e03118b8fe | 355 | // HubInterrupt - bitmap in dev->HubInterruptData |
| Sergio | 0:e1e03118b8fe | 356 | void HubInterrupt(int device) |
| Sergio | 0:e1e03118b8fe | 357 | { |
| Sergio | 0:e1e03118b8fe | 358 | Device* dev = &Devices[device-1]; |
| Sergio | 0:e1e03118b8fe | 359 | for (int i = 0; i < dev->HubPortCount; i++) |
| Sergio | 0:e1e03118b8fe | 360 | { |
| Sergio | 0:e1e03118b8fe | 361 | int port = i+1; |
| Sergio | 0:e1e03118b8fe | 362 | if (dev->HubInterruptData & (1 << port)) |
| Sergio | 0:e1e03118b8fe | 363 | { |
| Sergio | 0:e1e03118b8fe | 364 | u32 status = 0; |
| Sergio | 0:e1e03118b8fe | 365 | GetPortStatus(device,port,&status); |
| Sergio | 0:e1e03118b8fe | 366 | if (status >> 16) |
| Sergio | 0:e1e03118b8fe | 367 | { |
| Sergio | 0:e1e03118b8fe | 368 | if (_connectPending && (status & ConnectStatusChange)) |
| Sergio | 0:e1e03118b8fe | 369 | continue; // Don't connect again until previous device has been added and addressed |
| Sergio | 0:e1e03118b8fe | 370 | |
| Sergio | 0:e1e03118b8fe | 371 | HubStatusChange(device,port,status); |
| Sergio | 0:e1e03118b8fe | 372 | if (status & ConnectStatusChange) |
| Sergio | 0:e1e03118b8fe | 373 | ClearPortFeature(device,C_PORT_CONNECTION,port); |
| Sergio | 0:e1e03118b8fe | 374 | if (status & PortResetStatusChange) |
| Sergio | 0:e1e03118b8fe | 375 | ClearPortFeature(device,C_PORT_RESET,port); |
| Sergio | 0:e1e03118b8fe | 376 | } |
| Sergio | 0:e1e03118b8fe | 377 | } |
| Sergio | 0:e1e03118b8fe | 378 | } |
| Sergio | 0:e1e03118b8fe | 379 | } |
| Sergio | 0:e1e03118b8fe | 380 | |
| Sergio | 0:e1e03118b8fe | 381 | static void HubInterruptCallback(int device, int endpoint, int status, u8* data, int len, void* userData) |
| Sergio | 0:e1e03118b8fe | 382 | { |
| Sergio | 0:e1e03118b8fe | 383 | HostController* controller = (HostController*)userData; |
| Sergio | 0:e1e03118b8fe | 384 | if (status == 0) |
| Sergio | 0:e1e03118b8fe | 385 | controller->HubInterrupt(device); |
| Sergio | 0:e1e03118b8fe | 386 | USBInterruptTransfer(device,endpoint,data,1,HubInterruptCallback,userData); |
| Sergio | 0:e1e03118b8fe | 387 | } |
| Sergio | 0:e1e03118b8fe | 388 | |
| Sergio | 0:e1e03118b8fe | 389 | int InitHub(int device) |
| Sergio | 0:e1e03118b8fe | 390 | { |
| Sergio | 0:e1e03118b8fe | 391 | u8 buf[16]; |
| Sergio | 0:e1e03118b8fe | 392 | int r= USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_DEVICE,GET_DESCRIPTOR,(DESCRIPTOR_TYPE_HUB << 8),0,buf,sizeof(buf)); |
| Sergio | 0:e1e03118b8fe | 393 | if (r < 0) |
| Sergio | 0:e1e03118b8fe | 394 | return ERR_HUB_INIT_FAILED; |
| Sergio | 0:e1e03118b8fe | 395 | |
| Sergio | 0:e1e03118b8fe | 396 | // turn on power on the hubs ports |
| Sergio | 0:e1e03118b8fe | 397 | Device* dev = &Devices[device-1]; |
| Sergio | 0:e1e03118b8fe | 398 | int ports = buf[2]; |
| Sergio | 0:e1e03118b8fe | 399 | dev->HubPortCount = ports; |
| Sergio | 0:e1e03118b8fe | 400 | for (int i = 0; i < ports; i++) |
| Sergio | 0:e1e03118b8fe | 401 | SetPortPower(device,i+1); |
| Sergio | 0:e1e03118b8fe | 402 | |
| Sergio | 0:e1e03118b8fe | 403 | // Enable hub change interrupts |
| Sergio | 0:e1e03118b8fe | 404 | return USBInterruptTransfer(device,0x81,&dev->HubInterruptData,1,HubInterruptCallback,this); |
| Sergio | 0:e1e03118b8fe | 405 | } |
| Sergio | 0:e1e03118b8fe | 406 | |
| Sergio | 0:e1e03118b8fe | 407 | int AddEndpoint(int device, int ep, int attributes, int maxPacketSize, int interval) |
| Sergio | 0:e1e03118b8fe | 408 | { |
| Sergio | 0:e1e03118b8fe | 409 | LOG("AddEndpoint D:%02X A:%02X T:%02X P:%04X I:%02X\n",device,ep,attributes,maxPacketSize,interval); |
| Sergio | 0:e1e03118b8fe | 410 | Device* dev = &Devices[device-1]; |
| Sergio | 0:e1e03118b8fe | 411 | Endpoint* endpoint = AllocateEndpoint(device,ep,attributes,maxPacketSize); |
| Sergio | 0:e1e03118b8fe | 412 | if (!endpoint) |
| Sergio | 0:e1e03118b8fe | 413 | return ERR_ENDPOINT_NONE_LEFT; |
| Sergio | 0:e1e03118b8fe | 414 | dev->SetEndpointIndex(ep,endpoint - Endpoints); |
| Sergio | 0:e1e03118b8fe | 415 | endpoint->EndpointDescriptor.Control |= dev->Flags; // Map in slow speed |
| Sergio | 0:e1e03118b8fe | 416 | return 0; // TODO ed->bInterval |
| Sergio | 0:e1e03118b8fe | 417 | } |
| Sergio | 0:e1e03118b8fe | 418 | |
| Sergio | 0:e1e03118b8fe | 419 | int AddEndpoint(int device, EndpointDescriptor* ed) |
| Sergio | 0:e1e03118b8fe | 420 | { |
| Sergio | 0:e1e03118b8fe | 421 | return AddEndpoint(device,ed->bEndpointAddress,ed->bmAttributes,ed->wMaxPacketSize,ed->bInterval); |
| Sergio | 0:e1e03118b8fe | 422 | } |
| Sergio | 0:e1e03118b8fe | 423 | |
| Sergio | 0:e1e03118b8fe | 424 | // allocate a endpoint |
| Sergio | 0:e1e03118b8fe | 425 | Endpoint* AllocateEndpoint(int device, int endpointAddress, int type, int maxPacketSize) |
| Sergio | 0:e1e03118b8fe | 426 | { |
| Sergio | 0:e1e03118b8fe | 427 | for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++) |
| Sergio | 0:e1e03118b8fe | 428 | { |
| Sergio | 0:e1e03118b8fe | 429 | Endpoint* ep = &Endpoints[i]; |
| Sergio | 0:e1e03118b8fe | 430 | if (ep->CurrentState == 0) |
| Sergio | 0:e1e03118b8fe | 431 | { |
| Sergio | 0:e1e03118b8fe | 432 | //LOG("Allocated endpoint %d to %02X:%02X\n",i,device,endpointAddress); |
| Sergio | 0:e1e03118b8fe | 433 | ep->Flags = (endpointAddress & 0x80) | (type & 3); |
| Sergio | 0:e1e03118b8fe | 434 | ep->CurrentState = Endpoint::NotQueued; |
| Sergio | 0:e1e03118b8fe | 435 | ep->EndpointDescriptor.Control = (maxPacketSize << 16) | ((endpointAddress & 0x7F) << 7) | device; |
| Sergio | 0:e1e03118b8fe | 436 | return ep; |
| Sergio | 0:e1e03118b8fe | 437 | } |
| Sergio | 0:e1e03118b8fe | 438 | } |
| Sergio | 0:e1e03118b8fe | 439 | return 0; |
| Sergio | 0:e1e03118b8fe | 440 | } |
| Sergio | 0:e1e03118b8fe | 441 | |
| Sergio | 0:e1e03118b8fe | 442 | Endpoint* GetEndpoint(int device, int ep) |
| Sergio | 0:e1e03118b8fe | 443 | { |
| Sergio | 0:e1e03118b8fe | 444 | if (device == 0) |
| Sergio | 0:e1e03118b8fe | 445 | { |
| Sergio | 0:e1e03118b8fe | 446 | //printf("WARNING: USING DEVICE 0\n"); |
| Sergio | 0:e1e03118b8fe | 447 | return &EndpointZero; |
| Sergio | 0:e1e03118b8fe | 448 | } |
| Sergio | 0:e1e03118b8fe | 449 | if (device > MAX_DEVICES) |
| Sergio | 0:e1e03118b8fe | 450 | return 0; |
| Sergio | 0:e1e03118b8fe | 451 | int i = Devices[device-1].GetEndpointIndex(ep); |
| Sergio | 0:e1e03118b8fe | 452 | if (i == -1) |
| Sergio | 0:e1e03118b8fe | 453 | return 0; |
| Sergio | 0:e1e03118b8fe | 454 | return Endpoints + i; |
| Sergio | 0:e1e03118b8fe | 455 | } |
| Sergio | 0:e1e03118b8fe | 456 | |
| Sergio | 0:e1e03118b8fe | 457 | int Transfer(Endpoint* endpoint, int token, u8* data, int len, int state) |
| Sergio | 0:e1e03118b8fe | 458 | { |
| Sergio | 0:e1e03118b8fe | 459 | #ifdef USBLOG |
| Sergio | 0:e1e03118b8fe | 460 | LOG("Transfer EDaddres:%02X Token:%d Len:%d State:%d \n",endpoint->Address(),token,len,state); |
| Sergio | 0:e1e03118b8fe | 461 | LOG("Data %s: ",(token==TOKEN_IN)? "in": "out"); |
| Sergio | 0:e1e03118b8fe | 462 | |
| Sergio | 0:e1e03118b8fe | 463 | //print the data: |
| Sergio | 0:e1e03118b8fe | 464 | //@BUG, little endian- bigendian ?? |
| Sergio | 0:e1e03118b8fe | 465 | for (int i=0; i<len; i++) |
| Sergio | 0:e1e03118b8fe | 466 | { |
| Sergio | 0:e1e03118b8fe | 467 | if ( ((i%(int)8)==0) ) LOG("\n"); |
| Sergio | 0:e1e03118b8fe | 468 | LOG("hx%02X ",data[i]); |
| Sergio | 0:e1e03118b8fe | 469 | } |
| Sergio | 0:e1e03118b8fe | 470 | LOG("\n"); |
| Sergio | 0:e1e03118b8fe | 471 | |
| Sergio | 0:e1e03118b8fe | 472 | if ( token==TOKEN_IN && len<30 && len>8) |
| Sergio | 0:e1e03118b8fe | 473 | { |
| Sergio | 0:e1e03118b8fe | 474 | |
| Sergio | 0:e1e03118b8fe | 475 | LOG("bLength: %d d \n", data[0]); |
| Sergio | 0:e1e03118b8fe | 476 | LOG("bDescriptorType: %d -",data[1]); |
| Sergio | 0:e1e03118b8fe | 477 | /* |
| Sergio | 0:e1e03118b8fe | 478 | bDescriptorType Descriptor Type Required? |
| Sergio | 0:e1e03118b8fe | 479 | 01h device Yes. |
| Sergio | 0:e1e03118b8fe | 480 | 02h configuration Yes. |
| Sergio | 0:e1e03118b8fe | 481 | 03h string No. Optional descriptive text. |
| Sergio | 0:e1e03118b8fe | 482 | 04h interface Yes. |
| Sergio | 0:e1e03118b8fe | 483 | 05h endpoint No, if the device uses only Endpoint 0. |
| Sergio | 0:e1e03118b8fe | 484 | 06h device_qualifier Yes, for devices that support both full and high |
| Sergio | 0:e1e03118b8fe | 485 | speeds. Not allowed for other devices. |
| Sergio | 0:e1e03118b8fe | 486 | 07h other_speed_configuration Yes, for devices that support both full and high |
| Sergio | 0:e1e03118b8fe | 487 | speeds. Not allowed for other devices. |
| Sergio | 0:e1e03118b8fe | 488 | 08h interface_power No. Supports interface-level power |
| Sergio | 0:e1e03118b8fe | 489 | management. |
| Sergio | 0:e1e03118b8fe | 490 | 09h OTG For On-The-Go devices only. |
| Sergio | 0:e1e03118b8fe | 491 | 0Ah debug No. |
| Sergio | 0:e1e03118b8fe | 492 | 0Bh interface_association For composite devices. |
| Sergio | 0:e1e03118b8fe | 493 | */ |
| Sergio | 0:e1e03118b8fe | 494 | switch (data[1]) |
| Sergio | 0:e1e03118b8fe | 495 | { |
| Sergio | 0:e1e03118b8fe | 496 | case(1): { LOG("DEVICE"); break;} |
| Sergio | 0:e1e03118b8fe | 497 | case(2): { LOG("CONFIGURATION"); break;} |
| Sergio | 0:e1e03118b8fe | 498 | case(3): { LOG("STRING"); break;} |
| Sergio | 0:e1e03118b8fe | 499 | case(4): { LOG("INTERFACE"); break;} |
| Sergio | 0:e1e03118b8fe | 500 | case(5): { LOG("ENDPOINT"); break;} |
| Sergio | 0:e1e03118b8fe | 501 | case(6): { LOG("DEVICE_QUALIFIER"); break;} |
| Sergio | 0:e1e03118b8fe | 502 | case(7): { LOG("OTHER_SPEED_CONFIGURATION"); break;} |
| Sergio | 0:e1e03118b8fe | 503 | case(8): { LOG("ON_the_GO"); break;} |
| Sergio | 0:e1e03118b8fe | 504 | case(9): { LOG("DEBUG"); break;} |
| Sergio | 0:e1e03118b8fe | 505 | case(10): { LOG("INTERFACE_ASSOCIATION"); break;} |
| Sergio | 0:e1e03118b8fe | 506 | default: {LOG("?");} ; |
| Sergio | 0:e1e03118b8fe | 507 | }//end switch data1; |
| Sergio | 0:e1e03118b8fe | 508 | LOG("\n"); |
| Sergio | 0:e1e03118b8fe | 509 | } |
| Sergio | 0:e1e03118b8fe | 510 | |
| Sergio | 0:e1e03118b8fe | 511 | //the descriptor for device: |
| Sergio | 0:e1e03118b8fe | 512 | if(data[1]==1) |
| Sergio | 0:e1e03118b8fe | 513 | { |
| Sergio | 0:e1e03118b8fe | 514 | u16 *aux; |
| Sergio | 0:e1e03118b8fe | 515 | aux=(u16*) &data[2]; |
| Sergio | 0:e1e03118b8fe | 516 | LOG("bcdUSB\t %04x\t",*aux); |
| Sergio | 0:e1e03118b8fe | 517 | switch( *aux) |
| Sergio | 0:e1e03118b8fe | 518 | { |
| Sergio | 0:e1e03118b8fe | 519 | case(0x0200): {LOG("v2.0"); break;} |
| Sergio | 0:e1e03118b8fe | 520 | case(0x0110): {LOG("v1.1"); break;} |
| Sergio | 0:e1e03118b8fe | 521 | case(0x0100): {LOG("v1.0"); break;} |
| Sergio | 0:e1e03118b8fe | 522 | default: {LOG("?");} |
| Sergio | 0:e1e03118b8fe | 523 | } |
| Sergio | 0:e1e03118b8fe | 524 | LOG("\n"); |
| Sergio | 0:e1e03118b8fe | 525 | } |
| Sergio | 0:e1e03118b8fe | 526 | |
| Sergio | 0:e1e03118b8fe | 527 | |
| Sergio | 0:e1e03118b8fe | 528 | |
| Sergio | 0:e1e03118b8fe | 529 | |
| Sergio | 0:e1e03118b8fe | 530 | #endif |
| Sergio | 0:e1e03118b8fe | 531 | |
| Sergio | 0:e1e03118b8fe | 532 | int toggle = 0; |
| Sergio | 0:e1e03118b8fe | 533 | if (endpoint->Address() == 0) |
| Sergio | 0:e1e03118b8fe | 534 | toggle = (token == TOKEN_SETUP) ? TD_TOGGLE_0 : TD_TOGGLE_1; |
| Sergio | 0:e1e03118b8fe | 535 | |
| Sergio | 0:e1e03118b8fe | 536 | if (token != TOKEN_SETUP) |
| Sergio | 0:e1e03118b8fe | 537 | token = (token == TOKEN_IN ? TD_IN : TD_OUT); |
| Sergio | 0:e1e03118b8fe | 538 | |
| Sergio | 0:e1e03118b8fe | 539 | HCTD* head = &endpoint->TDHead; |
| Sergio | 0:e1e03118b8fe | 540 | HCTD* tail = &_commonTail; |
| Sergio | 0:e1e03118b8fe | 541 | |
| Sergio | 0:e1e03118b8fe | 542 | head->Control = TD_ROUNDING | token | TD_DELAY_INT(0) | toggle | TD_CC; |
| Sergio | 0:e1e03118b8fe | 543 | head->CurrBufPtr = (u32)data; //..data is a pointer. |
| Sergio | 0:e1e03118b8fe | 544 | head->BufEnd = (u32)(data + len - 1); //pointers arithmetic :S |
| Sergio | 0:e1e03118b8fe | 545 | head->Next = (u32)tail; |
| Sergio | 0:e1e03118b8fe | 546 | |
| Sergio | 0:e1e03118b8fe | 547 | HCED* ed = &endpoint->EndpointDescriptor; |
| Sergio | 0:e1e03118b8fe | 548 | ed->HeadTd = (u32)head | (ed->HeadTd & 0x00000002); // carry toggle |
| Sergio | 0:e1e03118b8fe | 549 | ed->TailTd = (u32)tail; |
| Sergio | 0:e1e03118b8fe | 550 | |
| Sergio | 0:e1e03118b8fe | 551 | //HCTD* td = head; |
| Sergio | 0:e1e03118b8fe | 552 | //LOG("%04X TD %08X %08X %08X Next:%08X\n",CommunicationArea.FrameNumber,td->Control,td->CurrBufPtr,td->BufEnd,td->Next); |
| Sergio | 0:e1e03118b8fe | 553 | //LOG("%04X ED %08X %08X %08X\n",CommunicationArea.FrameNumber,ed->Control,ed->HeadTd,ed->TailTd); |
| Sergio | 0:e1e03118b8fe | 554 | |
| Sergio | 0:e1e03118b8fe | 555 | switch (endpoint->Flags & 3) |
| Sergio | 0:e1e03118b8fe | 556 | { |
| Sergio | 0:e1e03118b8fe | 557 | case ENDPOINT_CONTROL: |
| Sergio | 0:e1e03118b8fe | 558 | LPC_USB->HcControlHeadED = endpoint->Enqueue(LPC_USB->HcControlHeadED); // May change state NotQueued->Idle |
| Sergio | 0:e1e03118b8fe | 559 | endpoint->CurrentState = state; // Get in before an int |
| Sergio | 0:e1e03118b8fe | 560 | LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | ControlListFilled; |
| Sergio | 0:e1e03118b8fe | 561 | LPC_USB->HcControl = LPC_USB->HcControl | ControlListEnable; |
| Sergio | 0:e1e03118b8fe | 562 | break; |
| Sergio | 0:e1e03118b8fe | 563 | |
| Sergio | 0:e1e03118b8fe | 564 | case ENDPOINT_BULK: |
| Sergio | 0:e1e03118b8fe | 565 | LPC_USB->HcBulkHeadED = endpoint->Enqueue(LPC_USB->HcBulkHeadED); |
| Sergio | 0:e1e03118b8fe | 566 | endpoint->CurrentState = state; |
| Sergio | 0:e1e03118b8fe | 567 | LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | BulkListFilled; |
| Sergio | 0:e1e03118b8fe | 568 | LPC_USB->HcControl = LPC_USB->HcControl | BulkListEnable; |
| Sergio | 0:e1e03118b8fe | 569 | break; |
| Sergio | 0:e1e03118b8fe | 570 | |
| Sergio | 0:e1e03118b8fe | 571 | case ENDPOINT_INTERRUPT: |
| Sergio | 0:e1e03118b8fe | 572 | CommunicationArea.InterruptTable[0] = endpoint->Enqueue(CommunicationArea.InterruptTable[0]); |
| Sergio | 0:e1e03118b8fe | 573 | endpoint->CurrentState = state; |
| Sergio | 0:e1e03118b8fe | 574 | LPC_USB->HcControl |= PeriodicListEnable; |
| Sergio | 0:e1e03118b8fe | 575 | break; |
| Sergio | 0:e1e03118b8fe | 576 | } |
| Sergio | 0:e1e03118b8fe | 577 | return 0; |
| Sergio | 0:e1e03118b8fe | 578 | }//end of transfer |
| Sergio | 0:e1e03118b8fe | 579 | |
| Sergio | 0:e1e03118b8fe | 580 | // Remove an endpoint from an active queue |
| Sergio | 0:e1e03118b8fe | 581 | bool Remove(HCED* ed, volatile HCED** queue) |
| Sergio | 0:e1e03118b8fe | 582 | { |
| Sergio | 0:e1e03118b8fe | 583 | if (*queue == 0) |
| Sergio | 0:e1e03118b8fe | 584 | return false; |
| Sergio | 0:e1e03118b8fe | 585 | if (*queue == (volatile HCED*)ed) |
| Sergio | 0:e1e03118b8fe | 586 | { |
| Sergio | 0:e1e03118b8fe | 587 | *queue = (volatile HCED*)ed->Next; // At head of queue |
| Sergio | 0:e1e03118b8fe | 588 | return true; |
| Sergio | 0:e1e03118b8fe | 589 | } |
| Sergio | 0:e1e03118b8fe | 590 | |
| Sergio | 0:e1e03118b8fe | 591 | volatile HCED* head = *queue; |
| Sergio | 0:e1e03118b8fe | 592 | while (head) |
| Sergio | 0:e1e03118b8fe | 593 | { |
| Sergio | 0:e1e03118b8fe | 594 | if (head->Next == (u32)ed) |
| Sergio | 0:e1e03118b8fe | 595 | { |
| Sergio | 0:e1e03118b8fe | 596 | head->Next = ed->Next; |
| Sergio | 0:e1e03118b8fe | 597 | return true; |
| Sergio | 0:e1e03118b8fe | 598 | } |
| Sergio | 0:e1e03118b8fe | 599 | head = (volatile HCED*)head->Next; |
| Sergio | 0:e1e03118b8fe | 600 | } |
| Sergio | 0:e1e03118b8fe | 601 | return false; |
| Sergio | 0:e1e03118b8fe | 602 | } |
| Sergio | 0:e1e03118b8fe | 603 | |
| Sergio | 0:e1e03118b8fe | 604 | void Release(Endpoint* endpoint) |
| Sergio | 0:e1e03118b8fe | 605 | { |
| Sergio | 0:e1e03118b8fe | 606 | if (endpoint->CurrentState == Endpoint::NotQueued) |
| Sergio | 0:e1e03118b8fe | 607 | { |
| Sergio | 0:e1e03118b8fe | 608 | // Never event used it, nothing to do |
| Sergio | 0:e1e03118b8fe | 609 | } |
| Sergio | 0:e1e03118b8fe | 610 | else |
| Sergio | 0:e1e03118b8fe | 611 | { |
| Sergio | 0:e1e03118b8fe | 612 | HCED* ed = (HCED*)endpoint; |
| Sergio | 0:e1e03118b8fe | 613 | ed->Control |= 0x4000; // SKIP |
| Sergio | 0:e1e03118b8fe | 614 | switch (endpoint->Flags & 0x03) |
| Sergio | 0:e1e03118b8fe | 615 | { |
| Sergio | 0:e1e03118b8fe | 616 | case ENDPOINT_CONTROL: |
| Sergio | 0:e1e03118b8fe | 617 | Remove(ed,(volatile HCED**)&LPC_USB->HcControlHeadED); |
| Sergio | 0:e1e03118b8fe | 618 | break; |
| Sergio | 0:e1e03118b8fe | 619 | case ENDPOINT_BULK: |
| Sergio | 0:e1e03118b8fe | 620 | Remove(ed,(volatile HCED**)&LPC_USB->HcBulkHeadED); |
| Sergio | 0:e1e03118b8fe | 621 | break; |
| Sergio | 0:e1e03118b8fe | 622 | case ENDPOINT_INTERRUPT: |
| Sergio | 0:e1e03118b8fe | 623 | for (int i = 0; i < 32; i++) |
| Sergio | 0:e1e03118b8fe | 624 | Remove(ed,(volatile HCED**)&CommunicationArea.InterruptTable[i]); |
| Sergio | 0:e1e03118b8fe | 625 | break; |
| Sergio | 0:e1e03118b8fe | 626 | } |
| Sergio | 0:e1e03118b8fe | 627 | |
| Sergio | 0:e1e03118b8fe | 628 | u16 fn = CommunicationArea.FrameNumber; |
| Sergio | 0:e1e03118b8fe | 629 | while (fn == CommunicationArea.FrameNumber) |
| Sergio | 0:e1e03118b8fe | 630 | ; // Wait for next frame |
| Sergio | 0:e1e03118b8fe | 631 | |
| Sergio | 0:e1e03118b8fe | 632 | } |
| Sergio | 0:e1e03118b8fe | 633 | |
| Sergio | 0:e1e03118b8fe | 634 | // In theory, the endpoint is now dead. |
| Sergio | 0:e1e03118b8fe | 635 | // TODO: Will Callbacks ever be pending? BUGBUG |
| Sergio | 0:e1e03118b8fe | 636 | memset(endpoint,0,sizeof(Endpoint)); |
| Sergio | 0:e1e03118b8fe | 637 | } |
| Sergio | 0:e1e03118b8fe | 638 | |
| Sergio | 0:e1e03118b8fe | 639 | // Pop the last TD from the list |
| Sergio | 0:e1e03118b8fe | 640 | HCTD* Reverse(HCTD* current) |
| Sergio | 0:e1e03118b8fe | 641 | { |
| Sergio | 0:e1e03118b8fe | 642 | HCTD *result = NULL,*temp; |
| Sergio | 0:e1e03118b8fe | 643 | while (current) |
| Sergio | 0:e1e03118b8fe | 644 | { |
| Sergio | 0:e1e03118b8fe | 645 | temp = (HCTD*)current->Next; |
| Sergio | 0:e1e03118b8fe | 646 | current->Next = (u32)result; |
| Sergio | 0:e1e03118b8fe | 647 | result = current; |
| Sergio | 0:e1e03118b8fe | 648 | current = temp; |
| Sergio | 0:e1e03118b8fe | 649 | } |
| Sergio | 0:e1e03118b8fe | 650 | return result; |
| Sergio | 0:e1e03118b8fe | 651 | } |
| Sergio | 0:e1e03118b8fe | 652 | |
| Sergio | 0:e1e03118b8fe | 653 | // Called from interrupt... |
| Sergio | 0:e1e03118b8fe | 654 | // Control endpoints use a state machine to progress through the transfers |
| Sergio | 0:e1e03118b8fe | 655 | void ProcessDoneQueue(u32 tdList) |
| Sergio | 0:e1e03118b8fe | 656 | { |
| Sergio | 0:e1e03118b8fe | 657 | HCTD* list = Reverse((HCTD*)tdList); |
| Sergio | 0:e1e03118b8fe | 658 | while (list) |
| Sergio | 0:e1e03118b8fe | 659 | { |
| Sergio | 0:e1e03118b8fe | 660 | Endpoint* endpoint = (Endpoint*)(list-1); |
| Sergio | 0:e1e03118b8fe | 661 | list = (HCTD*)list->Next; |
| Sergio | 0:e1e03118b8fe | 662 | int ep = endpoint->Address(); |
| Sergio | 0:e1e03118b8fe | 663 | bool in = endpoint->Flags & 0x80; |
| Sergio | 0:e1e03118b8fe | 664 | int status = (endpoint->TDHead.Control >> 28) & 0xF; |
| Sergio | 0:e1e03118b8fe | 665 | |
| Sergio | 0:e1e03118b8fe | 666 | LOG("ProcessDoneQueue %02X %08X\n\n",ep,endpoint->TDHead.Control); |
| Sergio | 0:e1e03118b8fe | 667 | |
| Sergio | 0:e1e03118b8fe | 668 | if (status != 0) |
| Sergio | 0:e1e03118b8fe | 669 | { |
| Sergio | 0:e1e03118b8fe | 670 | LOG("ProcessDoneQueue status %02X %d\n\n",ep,status); |
| Sergio | 0:e1e03118b8fe | 671 | endpoint->CurrentState = Endpoint::Idle; |
| Sergio | 0:e1e03118b8fe | 672 | } else { |
| Sergio | 0:e1e03118b8fe | 673 | switch (endpoint->CurrentState) |
| Sergio | 0:e1e03118b8fe | 674 | { |
| Sergio | 0:e1e03118b8fe | 675 | case Endpoint::SetupQueued: |
| Sergio | 0:e1e03118b8fe | 676 | if (endpoint->Length == 0) |
| Sergio | 0:e1e03118b8fe | 677 | Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Skip Data Phase |
| Sergio | 0:e1e03118b8fe | 678 | else |
| Sergio | 0:e1e03118b8fe | 679 | Transfer(endpoint,in ? TOKEN_IN : TOKEN_OUT,endpoint->Data,endpoint->Length, Endpoint::DataQueued); // Setup is done, now Data |
| Sergio | 0:e1e03118b8fe | 680 | break; |
| Sergio | 0:e1e03118b8fe | 681 | |
| Sergio | 0:e1e03118b8fe | 682 | case Endpoint::DataQueued: |
| Sergio | 0:e1e03118b8fe | 683 | if (endpoint->TDHead.CurrBufPtr) |
| Sergio | 0:e1e03118b8fe | 684 | endpoint->Length = endpoint->TDHead.CurrBufPtr - (u32)endpoint->Data; |
| Sergio | 0:e1e03118b8fe | 685 | |
| Sergio | 0:e1e03118b8fe | 686 | if (ep == 0) |
| Sergio | 0:e1e03118b8fe | 687 | Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Data is done, now Status, Control only |
| Sergio | 0:e1e03118b8fe | 688 | else |
| Sergio | 0:e1e03118b8fe | 689 | endpoint->CurrentState = Endpoint::Idle; |
| Sergio | 0:e1e03118b8fe | 690 | break; |
| Sergio | 0:e1e03118b8fe | 691 | |
| Sergio | 0:e1e03118b8fe | 692 | case Endpoint::StatusQueued: // Transaction is done |
| Sergio | 0:e1e03118b8fe | 693 | endpoint->CurrentState = Endpoint::Idle; |
| Sergio | 0:e1e03118b8fe | 694 | break; |
| Sergio | 0:e1e03118b8fe | 695 | } |
| Sergio | 0:e1e03118b8fe | 696 | } |
| Sergio | 0:e1e03118b8fe | 697 | |
| Sergio | 0:e1e03118b8fe | 698 | // Complete, flag if we need a callback |
| Sergio | 0:e1e03118b8fe | 699 | if (endpoint->Callback && endpoint->CurrentState == Endpoint::Idle) |
| Sergio | 0:e1e03118b8fe | 700 | { |
| Sergio | 0:e1e03118b8fe | 701 | endpoint->CurrentState = Endpoint::CallbackPending; |
| Sergio | 0:e1e03118b8fe | 702 | _callbacksPending++; |
| Sergio | 0:e1e03118b8fe | 703 | } |
| Sergio | 0:e1e03118b8fe | 704 | } |
| Sergio | 0:e1e03118b8fe | 705 | } |
| Sergio | 0:e1e03118b8fe | 706 | |
| Sergio | 0:e1e03118b8fe | 707 | // Hack to reset devices that don't want to connect |
| Sergio | 0:e1e03118b8fe | 708 | int AddDevice(int hub, int port, bool isLowSpeed) |
| Sergio | 0:e1e03118b8fe | 709 | { |
| Sergio | 0:e1e03118b8fe | 710 | int device = AddDeviceCore(hub,port,isLowSpeed); |
| Sergio | 0:e1e03118b8fe | 711 | if (device < 0) |
| Sergio | 0:e1e03118b8fe | 712 | { |
| Sergio | 0:e1e03118b8fe | 713 | LOG("========RETRY ADD DEVICE========\n"); // This will go for ever.. TODO power cycle root? |
| Sergio | 0:e1e03118b8fe | 714 | Disconnect(hub,port); // Could not read descriptor at assigned address, reset this port and try again |
| Sergio | 0:e1e03118b8fe | 715 | ResetPort(hub,port); // Cheap bluetooth dongles often need this on a hotplug |
| Sergio | 0:e1e03118b8fe | 716 | return -1; |
| Sergio | 0:e1e03118b8fe | 717 | } |
| Sergio | 0:e1e03118b8fe | 718 | return device; |
| Sergio | 0:e1e03118b8fe | 719 | } |
| Sergio | 0:e1e03118b8fe | 720 | |
| Sergio | 0:e1e03118b8fe | 721 | int AddDeviceCore(int hub, int port, bool isLowSpeed) |
| Sergio | 0:e1e03118b8fe | 722 | { |
| Sergio | 0:e1e03118b8fe | 723 | int lowSpeed = isLowSpeed ? 0x2000 : 0; |
| Sergio | 0:e1e03118b8fe | 724 | DeviceDescriptor desc; |
| Sergio | 0:e1e03118b8fe | 725 | EndpointZero.EndpointDescriptor.Control = (8 << 16) | lowSpeed; // MaxPacketSize == 8 |
| Sergio | 0:e1e03118b8fe | 726 | int r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,8); |
| Sergio | 0:e1e03118b8fe | 727 | if (r < 0) |
| Sergio | 0:e1e03118b8fe | 728 | { |
| Sergio | 0:e1e03118b8fe | 729 | LOG("FAILED TO LOAD DESCRIPTOR FOR DEVICE 0\n"); |
| Sergio | 0:e1e03118b8fe | 730 | return r; |
| Sergio | 0:e1e03118b8fe | 731 | } |
| Sergio | 0:e1e03118b8fe | 732 | |
| Sergio | 0:e1e03118b8fe | 733 | EndpointZero.EndpointDescriptor.Control = (desc.bMaxPacketSize << 16) | lowSpeed; // Actual MaxPacketSize |
| Sergio | 0:e1e03118b8fe | 734 | r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc)); |
| Sergio | 0:e1e03118b8fe | 735 | if (r < 0) |
| Sergio | 0:e1e03118b8fe | 736 | return r; |
| Sergio | 0:e1e03118b8fe | 737 | |
| Sergio | 0:e1e03118b8fe | 738 | LOG("\nClass %02X found %04X:%04X\n\n",desc.bDeviceClass,desc.idVendor,desc.idProduct); |
| Sergio | 0:e1e03118b8fe | 739 | |
| Sergio | 0:e1e03118b8fe | 740 | |
| Sergio | 0:e1e03118b8fe | 741 | // Now assign the device an address, move off EndpointZero |
| Sergio | 0:e1e03118b8fe | 742 | int device = 0; |
| Sergio | 0:e1e03118b8fe | 743 | for (int i = 0; i < MAX_DEVICES; i++) |
| Sergio | 0:e1e03118b8fe | 744 | { |
| Sergio | 0:e1e03118b8fe | 745 | if (Devices[i].Port == 0) |
| Sergio | 0:e1e03118b8fe | 746 | { |
| Sergio | 0:e1e03118b8fe | 747 | device = i+1; |
| Sergio | 0:e1e03118b8fe | 748 | break; |
| Sergio | 0:e1e03118b8fe | 749 | } |
| Sergio | 0:e1e03118b8fe | 750 | } |
| Sergio | 0:e1e03118b8fe | 751 | if (!device) |
| Sergio | 0:e1e03118b8fe | 752 | return ERR_DEVICE_NONE_LEFT; |
| Sergio | 0:e1e03118b8fe | 753 | |
| Sergio | 0:e1e03118b8fe | 754 | r = SetAddress(0,device); |
| Sergio | 0:e1e03118b8fe | 755 | if (r) |
| Sergio | 0:e1e03118b8fe | 756 | return r; |
| Sergio | 0:e1e03118b8fe | 757 | DelayMS(2); |
| Sergio | 0:e1e03118b8fe | 758 | |
| Sergio | 0:e1e03118b8fe | 759 | // Now at a nonzero address, create control endpoint |
| Sergio | 0:e1e03118b8fe | 760 | Device* dev = &Devices[device-1]; |
| Sergio | 0:e1e03118b8fe | 761 | dev->Init(&desc,hub,port,device,lowSpeed); |
| Sergio | 0:e1e03118b8fe | 762 | AddEndpoint(device,0,ENDPOINT_CONTROL,desc.bMaxPacketSize,0); |
| Sergio | 0:e1e03118b8fe | 763 | _connectPending = 0; |
| Sergio | 0:e1e03118b8fe | 764 | |
| Sergio | 0:e1e03118b8fe | 765 | // Verify this all works |
| Sergio | 0:e1e03118b8fe | 766 | r = GetDescriptor(device,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc)); |
| Sergio | 0:e1e03118b8fe | 767 | if (r < 0) |
| Sergio | 0:e1e03118b8fe | 768 | return r; |
| Sergio | 0:e1e03118b8fe | 769 | |
| Sergio | 0:e1e03118b8fe | 770 | // Set to interface 0 by default |
| Sergio | 0:e1e03118b8fe | 771 | // Calls LoadDevice if interface is found |
| Sergio | 0:e1e03118b8fe | 772 | r = SetConfigurationAndInterface(device,1,0,&desc); |
| Sergio | 0:e1e03118b8fe | 773 | |
| Sergio | 0:e1e03118b8fe | 774 | if (desc.bDeviceClass == CLASS_HUB) |
| Sergio | 0:e1e03118b8fe | 775 | InitHub(device); // Handle hubs in this code |
| Sergio | 0:e1e03118b8fe | 776 | |
| Sergio | 0:e1e03118b8fe | 777 | return device; |
| Sergio | 0:e1e03118b8fe | 778 | } |
| Sergio | 0:e1e03118b8fe | 779 | |
| Sergio | 0:e1e03118b8fe | 780 | // Walk descriptors and create endpoints for a given device |
| Sergio | 0:e1e03118b8fe | 781 | // TODO configuration !=1, alternate settings etc. |
| Sergio | 0:e1e03118b8fe | 782 | int SetConfigurationAndInterface(int device, int configuration, int interfaceNumber, DeviceDescriptor* desc) |
| Sergio | 0:e1e03118b8fe | 783 | { |
| Sergio | 0:e1e03118b8fe | 784 | LOG("SetConfiguration and Interface\n"); |
| Sergio | 0:e1e03118b8fe | 785 | u8 buffer[255]; |
| Sergio | 0:e1e03118b8fe | 786 | int err = GetDescriptor(device,DESCRIPTOR_TYPE_CONFIGURATION,0,buffer,sizeof(buffer)); |
| Sergio | 0:e1e03118b8fe | 787 | if (err < 0) |
| Sergio | 0:e1e03118b8fe | 788 | return err; |
| Sergio | 0:e1e03118b8fe | 789 | |
| Sergio | 0:e1e03118b8fe | 790 | err = SetConfiguration(device,configuration); |
| Sergio | 0:e1e03118b8fe | 791 | if (err < 0) |
| Sergio | 0:e1e03118b8fe | 792 | return err; |
| Sergio | 0:e1e03118b8fe | 793 | |
| Sergio | 0:e1e03118b8fe | 794 | // Add the endpoints for this interface |
| Sergio | 0:e1e03118b8fe | 795 | int len = buffer[2] | (buffer[3] << 8); |
| Sergio | 0:e1e03118b8fe | 796 | u8* d = buffer; |
| Sergio | 0:e1e03118b8fe | 797 | u8* end = d + len; |
| Sergio | 0:e1e03118b8fe | 798 | InterfaceDescriptor* found = 0; |
| Sergio | 0:e1e03118b8fe | 799 | while (d < end) |
| Sergio | 0:e1e03118b8fe | 800 | { |
| Sergio | 0:e1e03118b8fe | 801 | if (d[1] == DESCRIPTOR_TYPE_INTERFACE) |
| Sergio | 0:e1e03118b8fe | 802 | { |
| Sergio | 0:e1e03118b8fe | 803 | InterfaceDescriptor* id = (InterfaceDescriptor*)d; |
| Sergio | 0:e1e03118b8fe | 804 | if (id->bInterfaceNumber == interfaceNumber) |
| Sergio | 0:e1e03118b8fe | 805 | { |
| Sergio | 0:e1e03118b8fe | 806 | found = id; |
| Sergio | 0:e1e03118b8fe | 807 | d += d[0]; |
| Sergio | 0:e1e03118b8fe | 808 | while (d < end && d[1] != DESCRIPTOR_TYPE_INTERFACE) |
| Sergio | 0:e1e03118b8fe | 809 | { |
| Sergio | 0:e1e03118b8fe | 810 | switch (d[1]) |
| Sergio | 0:e1e03118b8fe | 811 | { |
| Sergio | 0:e1e03118b8fe | 812 | case DESCRIPTOR_TYPE_ENDPOINT: |
| Sergio | 0:e1e03118b8fe | 813 | AddEndpoint(device,(EndpointDescriptor*)d); |
| Sergio | 0:e1e03118b8fe | 814 | break; |
| Sergio | 0:e1e03118b8fe | 815 | default: |
| Sergio | 0:e1e03118b8fe | 816 | LOG("Skipping descriptor %02X (%d bytes)\n",d[1],d[0]); |
| Sergio | 0:e1e03118b8fe | 817 | } |
| Sergio | 0:e1e03118b8fe | 818 | d += d[0]; |
| Sergio | 0:e1e03118b8fe | 819 | } |
| Sergio | 0:e1e03118b8fe | 820 | } |
| Sergio | 0:e1e03118b8fe | 821 | } |
| Sergio | 0:e1e03118b8fe | 822 | d += d[0]; |
| Sergio | 0:e1e03118b8fe | 823 | } |
| Sergio | 0:e1e03118b8fe | 824 | |
| Sergio | 0:e1e03118b8fe | 825 | if (!found) |
| Sergio | 0:e1e03118b8fe | 826 | return ERR_INTERFACE_NOT_FOUND; |
| Sergio | 0:e1e03118b8fe | 827 | OnLoadDevice(device,desc,found); |
| Sergio | 0:e1e03118b8fe | 828 | return 0; |
| Sergio | 0:e1e03118b8fe | 829 | } |
| Sergio | 0:e1e03118b8fe | 830 | |
| Sergio | 0:e1e03118b8fe | 831 | void Init() |
| Sergio | 0:e1e03118b8fe | 832 | { |
| Sergio | 0:e1e03118b8fe | 833 | LOG("USB INIT (Controller is %d bytes)\n",sizeof(*this)); |
| Sergio | 0:e1e03118b8fe | 834 | memset(this,0,sizeof(HostController)); |
| Sergio | 0:e1e03118b8fe | 835 | EndpointZero.CurrentState = Endpoint::NotQueued; |
| Sergio | 0:e1e03118b8fe | 836 | HWInit(&CommunicationArea); |
| Sergio | 0:e1e03118b8fe | 837 | DelayMS(10); |
| Sergio | 0:e1e03118b8fe | 838 | } |
| Sergio | 0:e1e03118b8fe | 839 | |
| Sergio | 0:e1e03118b8fe | 840 | void ResetPort(int hub, int port) |
| Sergio | 0:e1e03118b8fe | 841 | { |
| Sergio | 0:e1e03118b8fe | 842 | LOG("ResetPort Hub:%d Port:%d\n",hub,port); |
| Sergio | 0:e1e03118b8fe | 843 | _connectPending++; // Only reset/add 1 device at a time |
| Sergio | 0:e1e03118b8fe | 844 | if (hub == 0) |
| Sergio | 0:e1e03118b8fe | 845 | LPC_USB->HcRhPortStatus1 = PortResetStatus; // Reset Root Hub, port 1 |
| Sergio | 0:e1e03118b8fe | 846 | else |
| Sergio | 0:e1e03118b8fe | 847 | |
| Sergio | 0:e1e03118b8fe | 848 | SetPortReset(hub,port); // or reset other hub |
| Sergio | 0:e1e03118b8fe | 849 | } |
| Sergio | 0:e1e03118b8fe | 850 | |
| Sergio | 0:e1e03118b8fe | 851 | void Disconnect(int hub, int port) |
| Sergio | 0:e1e03118b8fe | 852 | { |
| Sergio | 0:e1e03118b8fe | 853 | LOG("Disconnect Hub:%d Port:%d\n",hub,port); // Mark a device for destruction |
| Sergio | 0:e1e03118b8fe | 854 | for (int i = 0; i < MAX_DEVICES; i++) |
| Sergio | 0:e1e03118b8fe | 855 | { |
| Sergio | 0:e1e03118b8fe | 856 | Device* dev = Devices + i; |
| Sergio | 0:e1e03118b8fe | 857 | if (dev->Port == port && dev->Hub == hub) |
| Sergio | 0:e1e03118b8fe | 858 | { |
| Sergio | 0:e1e03118b8fe | 859 | // Disconnect everything that is attached to this device if it is a hub |
| Sergio | 0:e1e03118b8fe | 860 | for (int p = 0; p < dev->HubPortCount; p++) |
| Sergio | 0:e1e03118b8fe | 861 | Disconnect(i+1,p+1); |
| Sergio | 0:e1e03118b8fe | 862 | |
| Sergio | 0:e1e03118b8fe | 863 | // Now release endpoints |
| Sergio | 0:e1e03118b8fe | 864 | for (int j = 1; j < MAX_ENDPOINTS_PER_DEVICE*2; j += 2) |
| Sergio | 0:e1e03118b8fe | 865 | { |
| Sergio | 0:e1e03118b8fe | 866 | u8 endpointIndex = dev->_endpointMap[j]; |
| Sergio | 0:e1e03118b8fe | 867 | if (endpointIndex != 0xFF) |
| Sergio | 0:e1e03118b8fe | 868 | Release(Endpoints + endpointIndex); |
| Sergio | 0:e1e03118b8fe | 869 | } |
| Sergio | 0:e1e03118b8fe | 870 | dev->Port = 0; // Device is now free |
| Sergio | 0:e1e03118b8fe | 871 | dev->Flags = 0; |
| Sergio | 0:e1e03118b8fe | 872 | return; |
| Sergio | 0:e1e03118b8fe | 873 | } |
| Sergio | 0:e1e03118b8fe | 874 | } |
| Sergio | 0:e1e03118b8fe | 875 | } |
| Sergio | 0:e1e03118b8fe | 876 | |
| Sergio | 0:e1e03118b8fe | 877 | // called after reset |
| Sergio | 0:e1e03118b8fe | 878 | void Connect(int hub, int port, bool lowspeed) |
| Sergio | 0:e1e03118b8fe | 879 | { |
| Sergio | 0:e1e03118b8fe | 880 | LOG("Connect Hub:%d Port:%d %s\n\n",hub,port,lowspeed ? "slow-speed" : "full-speed"); |
| Sergio | 0:e1e03118b8fe | 881 | AddDevice(hub,port,lowspeed); |
| Sergio | 0:e1e03118b8fe | 882 | } |
| Sergio | 0:e1e03118b8fe | 883 | |
| Sergio | 0:e1e03118b8fe | 884 | // Called from interrupt |
| Sergio | 0:e1e03118b8fe | 885 | void HubStatusChange(int hub, int port, u32 status) |
| Sergio | 0:e1e03118b8fe | 886 | { |
| Sergio | 0:e1e03118b8fe | 887 | LOG("HubStatusChange Hub:%d Port:%d %08X\n",hub,port,status); |
| Sergio | 0:e1e03118b8fe | 888 | if (status & ConnectStatusChange) |
| Sergio | 0:e1e03118b8fe | 889 | { |
| Sergio | 0:e1e03118b8fe | 890 | if (status & CurrentConnectStatus) // Connecting |
| Sergio | 0:e1e03118b8fe | 891 | ResetPort(hub,port); // Reset to initiate connect (state machine?) |
| Sergio | 0:e1e03118b8fe | 892 | else |
| Sergio | 0:e1e03118b8fe | 893 | Disconnect(hub,port); |
| Sergio | 0:e1e03118b8fe | 894 | } |
| Sergio | 0:e1e03118b8fe | 895 | |
| Sergio | 0:e1e03118b8fe | 896 | if (status & PortResetStatusChange) |
| Sergio | 0:e1e03118b8fe | 897 | { |
| Sergio | 0:e1e03118b8fe | 898 | if (!(status & PortResetStatus)) |
| Sergio | 0:e1e03118b8fe | 899 | { |
| Sergio | 0:e1e03118b8fe | 900 | _connectCountdown = 200; // Schedule a connection in 200ms |
| Sergio | 0:e1e03118b8fe | 901 | if (status & LowspeedDevice) |
| Sergio | 0:e1e03118b8fe | 902 | port |= 0x80; |
| Sergio | 0:e1e03118b8fe | 903 | _connectHub = hub; |
| Sergio | 0:e1e03118b8fe | 904 | _connectPort = port; |
| Sergio | 0:e1e03118b8fe | 905 | } |
| Sergio | 0:e1e03118b8fe | 906 | } |
| Sergio | 0:e1e03118b8fe | 907 | } |
| Sergio | 0:e1e03118b8fe | 908 | |
| Sergio | 0:e1e03118b8fe | 909 | #define HOST_CLK_EN (1<<0) |
| Sergio | 0:e1e03118b8fe | 910 | #define PORTSEL_CLK_EN (1<<3) |
| Sergio | 0:e1e03118b8fe | 911 | #define AHB_CLK_EN (1<<4) |
| Sergio | 0:e1e03118b8fe | 912 | #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN) |
| Sergio | 0:e1e03118b8fe | 913 | |
| Sergio | 0:e1e03118b8fe | 914 | #define FRAMEINTERVAL (12000-1) // 1ms |
| Sergio | 0:e1e03118b8fe | 915 | #define DEFAULT_FMINTERVAL ((((6 * (FRAMEINTERVAL - 210)) / 7) << 16) | FRAMEINTERVAL) |
| Sergio | 0:e1e03118b8fe | 916 | |
| Sergio | 0:e1e03118b8fe | 917 | void DelayMS(int ms) |
| Sergio | 0:e1e03118b8fe | 918 | { |
| Sergio | 0:e1e03118b8fe | 919 | u16 f = ms + CommunicationArea.FrameNumber; |
| Sergio | 0:e1e03118b8fe | 920 | while (f != CommunicationArea.FrameNumber) |
| Sergio | 0:e1e03118b8fe | 921 | ; |
| Sergio | 0:e1e03118b8fe | 922 | } |
| Sergio | 0:e1e03118b8fe | 923 | |
| Sergio | 0:e1e03118b8fe | 924 | static void HWInit(HCCA* cca) |
| Sergio | 0:e1e03118b8fe | 925 | { |
| Sergio | 0:e1e03118b8fe | 926 | NVIC_DisableIRQ(USB_IRQn); //no interruptions |
| Sergio | 0:e1e03118b8fe | 927 | |
| Sergio | 0:e1e03118b8fe | 928 | // turn on power for USB |
| Sergio | 0:e1e03118b8fe | 929 | LPC_SC->PCONP |= (1UL<<31); |
| Sergio | 0:e1e03118b8fe | 930 | // Enable USB host clock, port selection and AHB clock |
| Sergio | 0:e1e03118b8fe | 931 | LPC_USB->USBClkCtrl |= CLOCK_MASK; |
| Sergio | 0:e1e03118b8fe | 932 | // Wait for clocks to become available |
| Sergio | 0:e1e03118b8fe | 933 | while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK) |
| Sergio | 0:e1e03118b8fe | 934 | ; |
| Sergio | 0:e1e03118b8fe | 935 | |
| Sergio | 0:e1e03118b8fe | 936 | // We are a Host |
| Sergio | 0:e1e03118b8fe | 937 | LPC_USB->OTGStCtrl |= 1; |
| Sergio | 0:e1e03118b8fe | 938 | LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN; // we don't need port selection clock until we do OTG |
| Sergio | 0:e1e03118b8fe | 939 | |
| Sergio | 0:e1e03118b8fe | 940 | // configure USB pins |
| Sergio | 0:e1e03118b8fe | 941 | LPC_PINCON->PINSEL1 &= ~((3<<26)|(3<<28)); |
| Sergio | 0:e1e03118b8fe | 942 | LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // USB D+/D- |
| Sergio | 0:e1e03118b8fe | 943 | |
| Sergio | 0:e1e03118b8fe | 944 | LPC_PINCON->PINSEL3 &= ~((3 << 6) | (3 << 22)); // USB_PPWR, USB_OVRCR |
| Sergio | 0:e1e03118b8fe | 945 | LPC_PINCON->PINSEL3 |= ((2 << 6) | (2 << 22)); |
| Sergio | 0:e1e03118b8fe | 946 | |
| Sergio | 0:e1e03118b8fe | 947 | LPC_PINCON->PINSEL4 &= ~(3 << 18); // USB_CONNECT |
| Sergio | 0:e1e03118b8fe | 948 | LPC_PINCON->PINSEL4 |= (1 << 18); |
| Sergio | 0:e1e03118b8fe | 949 | |
| Sergio | 0:e1e03118b8fe | 950 | // Reset OHCI block |
| Sergio | 0:e1e03118b8fe | 951 | LPC_USB->HcControl = 0; //Defines the operating modes of the HC. |
| Sergio | 0:e1e03118b8fe | 952 | |
| Sergio | 0:e1e03118b8fe | 953 | LPC_USB->HcControlHeadED = 0; //Contains the physical address of the first endpoint |
| Sergio | 0:e1e03118b8fe | 954 | //descriptor of the control list. |
| Sergio | 0:e1e03118b8fe | 955 | |
| Sergio | 0:e1e03118b8fe | 956 | LPC_USB->HcBulkHeadED = 0; //Contains the physical address of the first endpoint |
| Sergio | 0:e1e03118b8fe | 957 | //descriptor of the bulk list. |
| Sergio | 0:e1e03118b8fe | 958 | |
| Sergio | 0:e1e03118b8fe | 959 | LPC_USB->HcCommandStatus = HostControllerReset; //This register is used to receive the commands from the |
| Sergio | 0:e1e03118b8fe | 960 | //Host Controller Driver (HCD). It also indicates the status |
| Sergio | 0:e1e03118b8fe | 961 | //of the HC. |
| Sergio | 0:e1e03118b8fe | 962 | |
| Sergio | 0:e1e03118b8fe | 963 | LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; |
| Sergio | 0:e1e03118b8fe | 964 | LPC_USB->HcPeriodicStart = FRAMEINTERVAL*90/100; |
| Sergio | 0:e1e03118b8fe | 965 | |
| Sergio | 0:e1e03118b8fe | 966 | LPC_USB->HcControl = (LPC_USB->HcControl & (~HostControllerFunctionalState)) | OperationalMask; |
| Sergio | 0:e1e03118b8fe | 967 | LPC_USB->HcRhStatus = SetGlobalPower; |
| Sergio | 0:e1e03118b8fe | 968 | |
| Sergio | 0:e1e03118b8fe | 969 | LPC_USB->HcHCCA = (u32)cca; //Contains the physical address of the host controller |
| Sergio | 0:e1e03118b8fe | 970 | //communication area. |
| Sergio | 0:e1e03118b8fe | 971 | |
| Sergio | 0:e1e03118b8fe | 972 | LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus; //Indicates the status on various events that cause |
| Sergio | 0:e1e03118b8fe | 973 | //hardware interrupts by setting the appropriate bits. |
| Sergio | 0:e1e03118b8fe | 974 | LPC_USB->HcInterruptEnable = MasterInterruptEnable | WritebackDoneHead | RootHubStatusChange | FrameNumberOverflow; |
| Sergio | 0:e1e03118b8fe | 975 | |
| Sergio | 0:e1e03118b8fe | 976 | NVIC_SetPriority(USB_IRQn, 0); //top-priority |
| Sergio | 0:e1e03118b8fe | 977 | NVIC_EnableIRQ(USB_IRQn); //enable USB interruptions. |
| Sergio | 0:e1e03118b8fe | 978 | LOG("\nHWini\n"); |
| Sergio | 0:e1e03118b8fe | 979 | while (cca->FrameNumber < 10) |
| Sergio | 0:e1e03118b8fe | 980 | ; // 10ms delay before diving in |
| Sergio | 0:e1e03118b8fe | 981 | } |
| Sergio | 0:e1e03118b8fe | 982 | }; |
| Sergio | 0:e1e03118b8fe | 983 | |
| Sergio | 0:e1e03118b8fe | 984 | //==================================================================================== |
| Sergio | 0:e1e03118b8fe | 985 | //==================================================================================== |
| Sergio | 0:e1e03118b8fe | 986 | // Host controller instance and Interrupt handler |
| Sergio | 0:e1e03118b8fe | 987 | |
| Sergio | 0:e1e03118b8fe | 988 | static HostController _controller __attribute__((at(USB_RAM_BASE))); |
| Sergio | 0:e1e03118b8fe | 989 | |
| Sergio | 0:e1e03118b8fe | 990 | extern "C" void USB_IRQHandler(void) __irq; |
| Sergio | 0:e1e03118b8fe | 991 | void USB_IRQHandler (void) __irq |
| Sergio | 0:e1e03118b8fe | 992 | { |
| Sergio | 0:e1e03118b8fe | 993 | u32 int_status = LPC_USB->HcInterruptStatus; //Indicates the status on various events that cause |
| Sergio | 0:e1e03118b8fe | 994 | //hardware interrupts by setting the appropriate bits. |
| Sergio | 0:e1e03118b8fe | 995 | |
| Sergio | 0:e1e03118b8fe | 996 | if (int_status & RootHubStatusChange) // Root hub status change |
| Sergio | 0:e1e03118b8fe | 997 | _controller._rootHubStatusChange++; // Just flag the controller, will be processed in USBLoop |
| Sergio | 0:e1e03118b8fe | 998 | |
| Sergio | 0:e1e03118b8fe | 999 | u32 head = 0; |
| Sergio | 0:e1e03118b8fe | 1000 | if (int_status & WritebackDoneHead) |
| Sergio | 0:e1e03118b8fe | 1001 | { |
| Sergio | 0:e1e03118b8fe | 1002 | head = _controller.CommunicationArea.DoneHead; // Writeback Done |
| Sergio | 0:e1e03118b8fe | 1003 | _controller.CommunicationArea.DoneHead = 0; |
| Sergio | 0:e1e03118b8fe | 1004 | } |
| Sergio | 0:e1e03118b8fe | 1005 | LPC_USB->HcInterruptStatus = int_status; |
| Sergio | 0:e1e03118b8fe | 1006 | |
| Sergio | 0:e1e03118b8fe | 1007 | if (head) |
| Sergio | 0:e1e03118b8fe | 1008 | _controller.ProcessDoneQueue(head); // TODO - low bit can be set BUGBUG |
| Sergio | 0:e1e03118b8fe | 1009 | } |
| Sergio | 0:e1e03118b8fe | 1010 | |
| Sergio | 0:e1e03118b8fe | 1011 | //==================================================================================== |
| Sergio | 0:e1e03118b8fe | 1012 | //==================================================================================== |
| Sergio | 0:e1e03118b8fe | 1013 | // API Methods |
| Sergio | 0:e1e03118b8fe | 1014 | |
| Sergio | 0:e1e03118b8fe | 1015 | void USBInit() |
| Sergio | 0:e1e03118b8fe | 1016 | { |
| Sergio | 0:e1e03118b8fe | 1017 | return _controller.Init(); |
| Sergio | 0:e1e03118b8fe | 1018 | } |
| Sergio | 0:e1e03118b8fe | 1019 | |
| Sergio | 0:e1e03118b8fe | 1020 | void USBLoop() |
| Sergio | 0:e1e03118b8fe | 1021 | { |
| Sergio | 0:e1e03118b8fe | 1022 | return _controller.Loop(); |
| Sergio | 0:e1e03118b8fe | 1023 | } |
| Sergio | 0:e1e03118b8fe | 1024 | |
| Sergio | 0:e1e03118b8fe | 1025 | u8* USBGetBuffer(u32* len) |
| Sergio | 0:e1e03118b8fe | 1026 | { |
| Sergio | 0:e1e03118b8fe | 1027 | *len = USB_RAM_SIZE - sizeof(HostController); |
| Sergio | 0:e1e03118b8fe | 1028 | return _controller.SRAM; |
| Sergio | 0:e1e03118b8fe | 1029 | } |
| Sergio | 0:e1e03118b8fe | 1030 | |
| Sergio | 0:e1e03118b8fe | 1031 | |
| Sergio | 0:e1e03118b8fe | 1032 | static Setup* GetSetup(int device) |
| Sergio | 0:e1e03118b8fe | 1033 | { |
| Sergio | 0:e1e03118b8fe | 1034 | if (device == 0) |
| Sergio | 0:e1e03118b8fe | 1035 | return &_controller._setupZero; |
| Sergio | 0:e1e03118b8fe | 1036 | |
| Sergio | 0:e1e03118b8fe | 1037 | if (device < 1 || device > MAX_DEVICES) |
| Sergio | 0:e1e03118b8fe | 1038 | return 0; |
| Sergio | 0:e1e03118b8fe | 1039 | return &_controller.Devices[device-1].SetupBuffer; |
| Sergio | 0:e1e03118b8fe | 1040 | } |
| Sergio | 0:e1e03118b8fe | 1041 | |
| Sergio | 0:e1e03118b8fe | 1042 | // Loop until IO on endpoint is complete |
| Sergio | 0:e1e03118b8fe | 1043 | static int WaitIODone(Endpoint* endpoint) |
| Sergio | 0:e1e03118b8fe | 1044 | { |
| Sergio | 0:e1e03118b8fe | 1045 | if (endpoint->CurrentState == Endpoint::NotQueued) |
| Sergio | 0:e1e03118b8fe | 1046 | return 0; |
| Sergio | 0:e1e03118b8fe | 1047 | while (endpoint->CurrentState != Endpoint::Idle) |
| Sergio | 0:e1e03118b8fe | 1048 | USBLoop(); // May generate callbacks, mount or unmount devices etc |
| Sergio | 0:e1e03118b8fe | 1049 | int status = endpoint->Status(); |
| Sergio | 0:e1e03118b8fe | 1050 | if (status == 0) |
| Sergio | 0:e1e03118b8fe | 1051 | return endpoint->Length; |
| Sergio | 0:e1e03118b8fe | 1052 | return -status; |
| Sergio | 0:e1e03118b8fe | 1053 | } |
| Sergio | 0:e1e03118b8fe | 1054 | |
| Sergio | 0:e1e03118b8fe | 1055 | int USBTransfer(int device, int ep, u8 flags, u8* data, int length, USBCallback callback, void* userData) |
| Sergio | 0:e1e03118b8fe | 1056 | { |
| Sergio | 0:e1e03118b8fe | 1057 | Endpoint* endpoint = _controller.GetEndpoint(device,ep); |
| Sergio | 0:e1e03118b8fe | 1058 | if (!endpoint) |
| Sergio | 0:e1e03118b8fe | 1059 | return ERR_ENDPOINT_NOT_FOUND; |
| Sergio | 0:e1e03118b8fe | 1060 | |
| Sergio | 0:e1e03118b8fe | 1061 | WaitIODone(endpoint); |
| Sergio | 0:e1e03118b8fe | 1062 | endpoint->Flags = flags; |
| Sergio | 0:e1e03118b8fe | 1063 | endpoint->Data = data; |
| Sergio | 0:e1e03118b8fe | 1064 | endpoint->Length = length; |
| Sergio | 0:e1e03118b8fe | 1065 | endpoint->Callback = callback; |
| Sergio | 0:e1e03118b8fe | 1066 | endpoint->UserData = userData; |
| Sergio | 0:e1e03118b8fe | 1067 | if (ep == 0) |
| Sergio | 0:e1e03118b8fe | 1068 | _controller.Transfer(endpoint,TOKEN_SETUP,(u8*)GetSetup(device),8,Endpoint::SetupQueued); |
| Sergio | 0:e1e03118b8fe | 1069 | else |
| Sergio | 0:e1e03118b8fe | 1070 | _controller.Transfer(endpoint,flags & 0x80 ? TOKEN_IN : TOKEN_OUT,data,length,Endpoint::DataQueued); |
| Sergio | 0:e1e03118b8fe | 1071 | if (callback) |
| Sergio | 0:e1e03118b8fe | 1072 | return IO_PENDING; |
| Sergio | 0:e1e03118b8fe | 1073 | return WaitIODone(endpoint); |
| Sergio | 0:e1e03118b8fe | 1074 | } |
| Sergio | 0:e1e03118b8fe | 1075 | |
| Sergio | 0:e1e03118b8fe | 1076 | int USBControlTransfer(int device, int request_type, int request, int value, int index, u8* data, int length, USBCallback callback, void * userData) |
| Sergio | 0:e1e03118b8fe | 1077 | { |
| Sergio | 0:e1e03118b8fe | 1078 | |
| Sergio | 0:e1e03118b8fe | 1079 | |
| Sergio | 0:e1e03118b8fe | 1080 | Setup* setup = GetSetup(device); |
| Sergio | 0:e1e03118b8fe | 1081 | if (!setup) |
| Sergio | 0:e1e03118b8fe | 1082 | return ERR_DEVICE_NOT_FOUND; |
| Sergio | 0:e1e03118b8fe | 1083 | |
| Sergio | 0:e1e03118b8fe | 1084 | // Async control calls may overwrite setup buffer of previous call, so we need to wait before setting up next call |
| Sergio | 0:e1e03118b8fe | 1085 | WaitIODone(_controller.GetEndpoint(device,0)); |
| Sergio | 0:e1e03118b8fe | 1086 | |
| Sergio | 0:e1e03118b8fe | 1087 | setup->bm_request_type = request_type; |
| Sergio | 0:e1e03118b8fe | 1088 | setup->b_request = request; |
| Sergio | 0:e1e03118b8fe | 1089 | setup->w_value = value; |
| Sergio | 0:e1e03118b8fe | 1090 | setup->w_index = index; |
| Sergio | 0:e1e03118b8fe | 1091 | setup->w_length = length; |
| Sergio | 0:e1e03118b8fe | 1092 | |
| Sergio | 0:e1e03118b8fe | 1093 | |
| Sergio | 0:e1e03118b8fe | 1094 | #ifdef USBLOG |
| Sergio | 0:e1e03118b8fe | 1095 | LOG("USBControlTransfer\n"); |
| Sergio | 0:e1e03118b8fe | 1096 | LOG("bm_request_type\t %02x h", request_type); |
| Sergio | 0:e1e03118b8fe | 1097 | LOG( "\t %d%d%d%d%d%d%d%d b \t", (((request_type)&(128))>>7), (((request_type)&(64))>>6), ((request_type)&(32))>>5, ((request_type)&(16))>>4,((request_type)&(8))>>2,((request_type)&(4))>>1,((request_type)&(2) )>>1, (request_type)&(1) ); |
| Sergio | 0:e1e03118b8fe | 1098 | if( request_type &1) LOG(" -> device-to-host"); |
| Sergio | 0:e1e03118b8fe | 1099 | if(!( request_type & 1)) LOG(" -> host-to-device"); |
| Sergio | 0:e1e03118b8fe | 1100 | LOG("\n"); |
| Sergio | 0:e1e03118b8fe | 1101 | LOG("b_request\t %02x h ",request); |
| Sergio | 0:e1e03118b8fe | 1102 | /* USB2.0 specs: table 9.4: |
| Sergio | 0:e1e03118b8fe | 1103 | GET_STATUS 0 |
| Sergio | 0:e1e03118b8fe | 1104 | CLEAR_FEATURE 1 |
| Sergio | 0:e1e03118b8fe | 1105 | Reserved for future use 2 |
| Sergio | 0:e1e03118b8fe | 1106 | SET_FEATURE 3 |
| Sergio | 0:e1e03118b8fe | 1107 | Reserved for future use 4 |
| Sergio | 0:e1e03118b8fe | 1108 | SET_ADDRESS 5 |
| Sergio | 0:e1e03118b8fe | 1109 | GET_DESCRIPTOR 6 |
| Sergio | 0:e1e03118b8fe | 1110 | SET_DESCRIPTOR 7 |
| Sergio | 0:e1e03118b8fe | 1111 | GET_CONFIGURATION 8 |
| Sergio | 0:e1e03118b8fe | 1112 | SET_CONFIGURATION 9 |
| Sergio | 0:e1e03118b8fe | 1113 | GET_INTERFACE 10 |
| Sergio | 0:e1e03118b8fe | 1114 | SET_INTERFACE 11 |
| Sergio | 0:e1e03118b8fe | 1115 | SYNCH_FRAME 12 |
| Sergio | 0:e1e03118b8fe | 1116 | */ |
| Sergio | 0:e1e03118b8fe | 1117 | LOG("\t"); |
| Sergio | 0:e1e03118b8fe | 1118 | switch (request) |
| Sergio | 0:e1e03118b8fe | 1119 | { |
| Sergio | 0:e1e03118b8fe | 1120 | case (0) :{ LOG("GET_STATUS"); break; } |
| Sergio | 0:e1e03118b8fe | 1121 | case (1) :{ LOG("CLEAR_FEATURE"); break; } |
| Sergio | 0:e1e03118b8fe | 1122 | case (2) :{ LOG("reseved"); break; } |
| Sergio | 0:e1e03118b8fe | 1123 | case (3) :{ LOG("SET_FEATURE"); break; } |
| Sergio | 0:e1e03118b8fe | 1124 | case (6): { LOG("GET_DESCRIPTOR"); break; } |
| Sergio | 0:e1e03118b8fe | 1125 | case (5) :{ LOG("SET_ADDRESS"); break; } |
| Sergio | 0:e1e03118b8fe | 1126 | case (7): { LOG("SET_DESCRIPTOR"); break; } |
| Sergio | 0:e1e03118b8fe | 1127 | case (8) :{ LOG("GET_CONFIGURATION"); break; } |
| Sergio | 0:e1e03118b8fe | 1128 | case (9): { LOG("SET_CONFIGURATION"); break; } |
| Sergio | 0:e1e03118b8fe | 1129 | case (10): { LOG("GET_INTERFACE"); break; } |
| Sergio | 0:e1e03118b8fe | 1130 | case (11) :{ LOG("SET_INTERFACE"); break; } |
| Sergio | 0:e1e03118b8fe | 1131 | case (12): { LOG("SYNCH_FRAEM"); break; } |
| Sergio | 0:e1e03118b8fe | 1132 | |
| Sergio | 0:e1e03118b8fe | 1133 | }//end switch (reques) |
| Sergio | 0:e1e03118b8fe | 1134 | LOG("\n"); |
| Sergio | 0:e1e03118b8fe | 1135 | LOG("w_value \t %04x h\t ",value); |
| Sergio | 0:e1e03118b8fe | 1136 | /* |
| Sergio | 0:e1e03118b8fe | 1137 | Descriptor Types Value |
| Sergio | 0:e1e03118b8fe | 1138 | DEVICE 1 |
| Sergio | 0:e1e03118b8fe | 1139 | CONFIGURATION 2 |
| Sergio | 0:e1e03118b8fe | 1140 | STRING 3 |
| Sergio | 0:e1e03118b8fe | 1141 | INTERFACE 4 |
| Sergio | 0:e1e03118b8fe | 1142 | ENDPOINT 5 |
| Sergio | 0:e1e03118b8fe | 1143 | DEVICE_QUALIFIER 6 |
| Sergio | 0:e1e03118b8fe | 1144 | OTHER_SPEED_CONFIGURATION 7 |
| Sergio | 0:e1e03118b8fe | 1145 | INTERFACE_POWER1 8 |
| Sergio | 0:e1e03118b8fe | 1146 | */ |
| Sergio | 0:e1e03118b8fe | 1147 | u8* pv=(u8*)&value; |
| Sergio | 0:e1e03118b8fe | 1148 | pv=pv+1; |
| Sergio | 0:e1e03118b8fe | 1149 | switch (request) |
| Sergio | 0:e1e03118b8fe | 1150 | { |
| Sergio | 0:e1e03118b8fe | 1151 | case (GET_DESCRIPTOR): |
| Sergio | 0:e1e03118b8fe | 1152 | { |
| Sergio | 0:e1e03118b8fe | 1153 | switch (*pv) |
| Sergio | 0:e1e03118b8fe | 1154 | { |
| Sergio | 0:e1e03118b8fe | 1155 | case(1): { LOG(" -> DEVICE"); break; } |
| Sergio | 0:e1e03118b8fe | 1156 | case(2): { LOG(" -> CONFIGURATION"); break;} |
| Sergio | 0:e1e03118b8fe | 1157 | case(3): { LOG(" -> STRING"); break;} |
| Sergio | 0:e1e03118b8fe | 1158 | case( 4): { LOG(" -> INTERFACE"); break;} |
| Sergio | 0:e1e03118b8fe | 1159 | case(5): { LOG(" -> ENDPOINT"); break;} |
| Sergio | 0:e1e03118b8fe | 1160 | case( 6): { LOG(" -> DEVICE_QUALIFIER"); break;} |
| Sergio | 0:e1e03118b8fe | 1161 | case( 7): { LOG(" -> OTHER SPEED_CONFIGURATION"); break;} |
| Sergio | 0:e1e03118b8fe | 1162 | case (8) :{ LOG("SET_INTERFACE"); break; } |
| Sergio | 0:e1e03118b8fe | 1163 | default: {LOG("->%x",*pv);} ; |
| Sergio | 0:e1e03118b8fe | 1164 | }//end switch(value) |
| Sergio | 0:e1e03118b8fe | 1165 | break; |
| Sergio | 0:e1e03118b8fe | 1166 | }//end case 6 |
| Sergio | 0:e1e03118b8fe | 1167 | |
| Sergio | 0:e1e03118b8fe | 1168 | case(SET_ADDRESS): |
| Sergio | 0:e1e03118b8fe | 1169 | { |
| Sergio | 0:e1e03118b8fe | 1170 | LOG("<-this value is the new adress"); break; |
| Sergio | 0:e1e03118b8fe | 1171 | }//end case set address. |
| Sergio | 0:e1e03118b8fe | 1172 | |
| Sergio | 0:e1e03118b8fe | 1173 | default : |
| Sergio | 0:e1e03118b8fe | 1174 | { LOG("."); break; |
| Sergio | 0:e1e03118b8fe | 1175 | } |
| Sergio | 0:e1e03118b8fe | 1176 | } |
| Sergio | 0:e1e03118b8fe | 1177 | LOG("\n"); |
| Sergio | 0:e1e03118b8fe | 1178 | LOG("w_index = %04x h = %2d d \n",index, index); |
| Sergio | 0:e1e03118b8fe | 1179 | LOG("w_length = %04x h = %2d d ",length, length); |
| Sergio | 0:e1e03118b8fe | 1180 | if (request==6) LOG(" -> this should be the descriptor/answer length"); |
| Sergio | 0:e1e03118b8fe | 1181 | LOG("\n"); |
| Sergio | 0:e1e03118b8fe | 1182 | #endif |
| Sergio | 0:e1e03118b8fe | 1183 | |
| Sergio | 0:e1e03118b8fe | 1184 | return USBTransfer(device,0,request_type & DEVICE_TO_HOST,data,length,callback,userData); |
| Sergio | 0:e1e03118b8fe | 1185 | } |
| Sergio | 0:e1e03118b8fe | 1186 | |
| Sergio | 0:e1e03118b8fe | 1187 | int USBInterruptTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData) |
| Sergio | 0:e1e03118b8fe | 1188 | { |
| Sergio | 0:e1e03118b8fe | 1189 | LOG("USBinterruptTransfer\n"); |
| Sergio | 0:e1e03118b8fe | 1190 | return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_INTERRUPT,data,length,callback,userData); |
| Sergio | 0:e1e03118b8fe | 1191 | } |
| Sergio | 0:e1e03118b8fe | 1192 | |
| Sergio | 0:e1e03118b8fe | 1193 | int USBBulkTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData) |
| Sergio | 0:e1e03118b8fe | 1194 | { |
| Sergio | 0:e1e03118b8fe | 1195 | LOG("USBBulkTransfer\n"); |
| Sergio | 0:e1e03118b8fe | 1196 | return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_BULK,data,length,callback,userData); |
| Sergio | 0:e1e03118b8fe | 1197 | } |
| Sergio | 0:e1e03118b8fe | 1198 | |
| Sergio | 0:e1e03118b8fe | 1199 | int GetDescriptor(int device, int descType,int descIndex, u8* data, int length) |
| Sergio | 0:e1e03118b8fe | 1200 | { |
| Sergio | 0:e1e03118b8fe | 1201 | return USBControlTransfer(device,DEVICE_TO_HOST | RECIPIENT_DEVICE, GET_DESCRIPTOR,(descType << 8)|(descIndex), 0, data, length, 0); |
| Sergio | 0:e1e03118b8fe | 1202 | } |
| Sergio | 0:e1e03118b8fe | 1203 | |
| Sergio | 0:e1e03118b8fe | 1204 | int GetString(int device, int index, char* dst, int length) |
| Sergio | 0:e1e03118b8fe | 1205 | { |
| Sergio | 0:e1e03118b8fe | 1206 | u8 buffer[255]; |
| Sergio | 0:e1e03118b8fe | 1207 | int le = GetDescriptor(device,DESCRIPTOR_TYPE_STRING,index,buffer,sizeof(buffer)); |
| Sergio | 0:e1e03118b8fe | 1208 | if (le < 0) |
| Sergio | 0:e1e03118b8fe | 1209 | return le; |
| Sergio | 0:e1e03118b8fe | 1210 | if (length < 1) |
| Sergio | 0:e1e03118b8fe | 1211 | return -1; |
| Sergio | 0:e1e03118b8fe | 1212 | length <<= 1; |
| Sergio | 0:e1e03118b8fe | 1213 | if (le > length) |
| Sergio | 0:e1e03118b8fe | 1214 | le = length; |
| Sergio | 0:e1e03118b8fe | 1215 | for (int j = 2; j < le; j += 2) |
| Sergio | 0:e1e03118b8fe | 1216 | *dst++ = buffer[j]; |
| Sergio | 0:e1e03118b8fe | 1217 | *dst = 0; |
| Sergio | 0:e1e03118b8fe | 1218 | return (le>>1)-1; |
| Sergio | 0:e1e03118b8fe | 1219 | } |
| Sergio | 0:e1e03118b8fe | 1220 | |
| Sergio | 0:e1e03118b8fe | 1221 | int SetAddress(int device, int new_addr) |
| Sergio | 0:e1e03118b8fe | 1222 | { |
| Sergio | 0:e1e03118b8fe | 1223 | return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_ADDRESS, new_addr, 0, 0, 0, 0); |
| Sergio | 0:e1e03118b8fe | 1224 | } |
| Sergio | 0:e1e03118b8fe | 1225 | |
| Sergio | 0:e1e03118b8fe | 1226 | int SetConfiguration(int device, int configNum) |
| Sergio | 0:e1e03118b8fe | 1227 | { |
| Sergio | 0:e1e03118b8fe | 1228 | return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_CONFIGURATION, configNum, 0, 0, 0, 0); |
| Sergio | 0:e1e03118b8fe | 1229 | } |
| Sergio | 0:e1e03118b8fe | 1230 | |
| Sergio | 0:e1e03118b8fe | 1231 | int SetInterface(int device, int ifNum, int altNum) |
| Sergio | 0:e1e03118b8fe | 1232 | { |
| Sergio | 0:e1e03118b8fe | 1233 | return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_INTERFACE, SET_INTERFACE, altNum, ifNum, 0, 0, 0); |
| Sergio | 0:e1e03118b8fe | 1234 | } |
| Sergio | 0:e1e03118b8fe | 1235 | |
| Sergio | 0:e1e03118b8fe | 1236 | // HUB stuff |
| Sergio | 0:e1e03118b8fe | 1237 | int SetPortFeature(int device, int feature, int index) |
| Sergio | 0:e1e03118b8fe | 1238 | { |
| Sergio | 0:e1e03118b8fe | 1239 | return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,SET_FEATURE,feature,index,0,0); |
| Sergio | 0:e1e03118b8fe | 1240 | } |
| Sergio | 0:e1e03118b8fe | 1241 | |
| Sergio | 0:e1e03118b8fe | 1242 | int ClearPortFeature(int device, int feature, int index) |
| Sergio | 0:e1e03118b8fe | 1243 | { |
| Sergio | 0:e1e03118b8fe | 1244 | return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,CLEAR_FEATURE,feature,index,0,0); |
| Sergio | 0:e1e03118b8fe | 1245 | } |
| Sergio | 0:e1e03118b8fe | 1246 | |
| Sergio | 0:e1e03118b8fe | 1247 | int SetPortPower(int device, int port) |
| Sergio | 0:e1e03118b8fe | 1248 | { |
| Sergio | 0:e1e03118b8fe | 1249 | int r = SetPortFeature(device,PORT_POWER,port); |
| Sergio | 0:e1e03118b8fe | 1250 | _controller.DelayMS(20); // 80ms to turn on a hubs power... DESCRIPTOR? todo |
| Sergio | 0:e1e03118b8fe | 1251 | return r; |
| Sergio | 0:e1e03118b8fe | 1252 | } |
| Sergio | 0:e1e03118b8fe | 1253 | |
| Sergio | 0:e1e03118b8fe | 1254 | int SetPortReset(int device, int port) |
| Sergio | 0:e1e03118b8fe | 1255 | { |
| Sergio | 0:e1e03118b8fe | 1256 | return SetPortFeature(device,PORT_RESET,port); |
| Sergio | 0:e1e03118b8fe | 1257 | } |
| Sergio | 0:e1e03118b8fe | 1258 | |
| Sergio | 0:e1e03118b8fe | 1259 | int GetPortStatus(int device, int port, u32* status) |
| Sergio | 0:e1e03118b8fe | 1260 | { |
| Sergio | 0:e1e03118b8fe | 1261 | return USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,GET_STATUS,0,port,(u8*)status,4); |
| Sergio | 0:e1e03118b8fe | 1262 | } |