Oskar Weigl
This program uses code taken from another program called BlueUSB
USBHost.cpp@0:31713f62f35b, 2011-12-10 (annotated)
- Committer:
- madcowswe
- Date:
- Sat Dec 10 18:45:31 2011 +0000
- Revision:
- 0:31713f62f35b
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| madcowswe | 0:31713f62f35b | 1 | |
| madcowswe | 0:31713f62f35b | 2 | /* |
| madcowswe | 0:31713f62f35b | 3 | Copyright (c) 2010 Peter Barrett |
| madcowswe | 0:31713f62f35b | 4 | |
| madcowswe | 0:31713f62f35b | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| madcowswe | 0:31713f62f35b | 6 | of this software and associated documentation files (the "Software"), to deal |
| madcowswe | 0:31713f62f35b | 7 | in the Software without restriction, including without limitation the rights |
| madcowswe | 0:31713f62f35b | 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| madcowswe | 0:31713f62f35b | 9 | copies of the Software, and to permit persons to whom the Software is |
| madcowswe | 0:31713f62f35b | 10 | furnished to do so, subject to the following conditions: |
| madcowswe | 0:31713f62f35b | 11 | |
| madcowswe | 0:31713f62f35b | 12 | The above copyright notice and this permission notice shall be included in |
| madcowswe | 0:31713f62f35b | 13 | all copies or substantial portions of the Software. |
| madcowswe | 0:31713f62f35b | 14 | |
| madcowswe | 0:31713f62f35b | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| madcowswe | 0:31713f62f35b | 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| madcowswe | 0:31713f62f35b | 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| madcowswe | 0:31713f62f35b | 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| madcowswe | 0:31713f62f35b | 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| madcowswe | 0:31713f62f35b | 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| madcowswe | 0:31713f62f35b | 21 | THE SOFTWARE. |
| madcowswe | 0:31713f62f35b | 22 | */ |
| madcowswe | 0:31713f62f35b | 23 | |
| madcowswe | 0:31713f62f35b | 24 | #include "mbed.h" |
| madcowswe | 0:31713f62f35b | 25 | #include "USBHost.h" |
| madcowswe | 0:31713f62f35b | 26 | |
| madcowswe | 0:31713f62f35b | 27 | // Config (default uses x bytes) |
| madcowswe | 0:31713f62f35b | 28 | #define MAX_DEVICES 8 // Max number of devices |
| madcowswe | 0:31713f62f35b | 29 | #define MAX_ENDPOINTS_TOTAL 16 // Max number of endpoints total |
| madcowswe | 0:31713f62f35b | 30 | #define MAX_ENDPOINTS_PER_DEVICE 8 // Max number of endpoints for any one device |
| madcowswe | 0:31713f62f35b | 31 | |
| madcowswe | 0:31713f62f35b | 32 | #define USBLOG 1 |
| madcowswe | 0:31713f62f35b | 33 | #if USBLOG |
| madcowswe | 0:31713f62f35b | 34 | #define LOG(...) printf(__VA_ARGS__) |
| madcowswe | 0:31713f62f35b | 35 | #else |
| madcowswe | 0:31713f62f35b | 36 | #define LOG(...) do {} while(0) |
| madcowswe | 0:31713f62f35b | 37 | #endif |
| madcowswe | 0:31713f62f35b | 38 | |
| madcowswe | 0:31713f62f35b | 39 | // USB host structures |
| madcowswe | 0:31713f62f35b | 40 | |
| madcowswe | 0:31713f62f35b | 41 | #define USB_RAM_SIZE 16*1024 // AHB SRAM block 1 TODO MACHINE DEPENDENT |
| madcowswe | 0:31713f62f35b | 42 | #define USB_RAM_BASE 0x2007C000 |
| madcowswe | 0:31713f62f35b | 43 | |
| madcowswe | 0:31713f62f35b | 44 | #define TOKEN_SETUP 0 |
| madcowswe | 0:31713f62f35b | 45 | #define TOKEN_IN 1 |
| madcowswe | 0:31713f62f35b | 46 | #define TOKEN_OUT 2 |
| madcowswe | 0:31713f62f35b | 47 | |
| madcowswe | 0:31713f62f35b | 48 | // Status flags from hub |
| madcowswe | 0:31713f62f35b | 49 | #define PORT_CONNECTION 0 |
| madcowswe | 0:31713f62f35b | 50 | #define PORT_ENABLE 1 |
| madcowswe | 0:31713f62f35b | 51 | #define PORT_SUSPEND 2 |
| madcowswe | 0:31713f62f35b | 52 | #define PORT_OVER_CURRENT 3 |
| madcowswe | 0:31713f62f35b | 53 | #define PORT_RESET 4 |
| madcowswe | 0:31713f62f35b | 54 | #define PORT_POWER 8 |
| madcowswe | 0:31713f62f35b | 55 | #define PORT_LOW_SPEED 9 |
| madcowswe | 0:31713f62f35b | 56 | |
| madcowswe | 0:31713f62f35b | 57 | #define C_PORT_CONNECTION 16 |
| madcowswe | 0:31713f62f35b | 58 | #define C_PORT_ENABLE 17 |
| madcowswe | 0:31713f62f35b | 59 | #define C_PORT_SUSPEND 18 |
| madcowswe | 0:31713f62f35b | 60 | #define C_PORT_OVER_CURRENT 19 |
| madcowswe | 0:31713f62f35b | 61 | #define C_PORT_RESET 20 |
| madcowswe | 0:31713f62f35b | 62 | |
| madcowswe | 0:31713f62f35b | 63 | typedef struct { |
| madcowswe | 0:31713f62f35b | 64 | u8 bm_request_type; |
| madcowswe | 0:31713f62f35b | 65 | u8 b_request; |
| madcowswe | 0:31713f62f35b | 66 | u16 w_value; |
| madcowswe | 0:31713f62f35b | 67 | u16 w_index; |
| madcowswe | 0:31713f62f35b | 68 | u16 w_length; |
| madcowswe | 0:31713f62f35b | 69 | } Setup; |
| madcowswe | 0:31713f62f35b | 70 | |
| madcowswe | 0:31713f62f35b | 71 | |
| madcowswe | 0:31713f62f35b | 72 | // Hub stuff is kept private just to keep api simple |
| madcowswe | 0:31713f62f35b | 73 | int SetPortFeature(int device, int feature, int index); |
| madcowswe | 0:31713f62f35b | 74 | int ClearPortFeature(int device, int feature, int index); |
| madcowswe | 0:31713f62f35b | 75 | int SetPortPower(int device, int port); |
| madcowswe | 0:31713f62f35b | 76 | int SetPortReset(int device, int port); |
| madcowswe | 0:31713f62f35b | 77 | int GetPortStatus(int device, int port, u32* status); |
| madcowswe | 0:31713f62f35b | 78 | |
| madcowswe | 0:31713f62f35b | 79 | //=================================================================== |
| madcowswe | 0:31713f62f35b | 80 | //=================================================================== |
| madcowswe | 0:31713f62f35b | 81 | // Hardware defines |
| madcowswe | 0:31713f62f35b | 82 | |
| madcowswe | 0:31713f62f35b | 83 | // HcControl |
| madcowswe | 0:31713f62f35b | 84 | #define PeriodicListEnable 0x00000004 |
| madcowswe | 0:31713f62f35b | 85 | #define IsochronousEnable 0x00000008 |
| madcowswe | 0:31713f62f35b | 86 | #define ControlListEnable 0x00000010 |
| madcowswe | 0:31713f62f35b | 87 | #define BulkListEnable 0x00000020 |
| madcowswe | 0:31713f62f35b | 88 | #define OperationalMask 0x00000080 |
| madcowswe | 0:31713f62f35b | 89 | #define HostControllerFunctionalState 0x000000C0 |
| madcowswe | 0:31713f62f35b | 90 | |
| madcowswe | 0:31713f62f35b | 91 | // HcCommandStatus |
| madcowswe | 0:31713f62f35b | 92 | #define HostControllerReset 0x00000001 |
| madcowswe | 0:31713f62f35b | 93 | #define ControlListFilled 0x00000002 |
| madcowswe | 0:31713f62f35b | 94 | #define BulkListFilled 0x00000004 |
| madcowswe | 0:31713f62f35b | 95 | |
| madcowswe | 0:31713f62f35b | 96 | // HcInterruptStatus Register |
| madcowswe | 0:31713f62f35b | 97 | #define WritebackDoneHead 0x00000002 |
| madcowswe | 0:31713f62f35b | 98 | #define StartofFrame 0x00000004 |
| madcowswe | 0:31713f62f35b | 99 | #define ResumeDetected 0x00000008 |
| madcowswe | 0:31713f62f35b | 100 | #define UnrecoverableError 0x00000010 |
| madcowswe | 0:31713f62f35b | 101 | #define FrameNumberOverflow 0x00000020 |
| madcowswe | 0:31713f62f35b | 102 | #define RootHubStatusChange 0x00000040 |
| madcowswe | 0:31713f62f35b | 103 | #define OwnershipChange 0x00000080 |
| madcowswe | 0:31713f62f35b | 104 | #define MasterInterruptEnable 0x80000000 |
| madcowswe | 0:31713f62f35b | 105 | |
| madcowswe | 0:31713f62f35b | 106 | // HcRhStatus |
| madcowswe | 0:31713f62f35b | 107 | #define SetGlobalPower 0x00010000 |
| madcowswe | 0:31713f62f35b | 108 | #define DeviceRemoteWakeupEnable 0x00008000 |
| madcowswe | 0:31713f62f35b | 109 | |
| madcowswe | 0:31713f62f35b | 110 | // HcRhPortStatus (hub 0, port 1) |
| madcowswe | 0:31713f62f35b | 111 | #define CurrentConnectStatus 0x00000001 |
| madcowswe | 0:31713f62f35b | 112 | #define PortEnableStatus 0x00000002 |
| madcowswe | 0:31713f62f35b | 113 | #define PortSuspendStatus 0x00000004 |
| madcowswe | 0:31713f62f35b | 114 | #define PortOverCurrentIndicator 0x00000008 |
| madcowswe | 0:31713f62f35b | 115 | #define PortResetStatus 0x00000010 |
| madcowswe | 0:31713f62f35b | 116 | |
| madcowswe | 0:31713f62f35b | 117 | #define PortPowerStatus 0x00000100 |
| madcowswe | 0:31713f62f35b | 118 | #define LowspeedDevice 0x00000200 |
| madcowswe | 0:31713f62f35b | 119 | #define HighspeedDevice 0x00000400 |
| madcowswe | 0:31713f62f35b | 120 | |
| madcowswe | 0:31713f62f35b | 121 | #define ConnectStatusChange (CurrentConnectStatus << 16) |
| madcowswe | 0:31713f62f35b | 122 | #define PortResetStatusChange (PortResetStatus << 16) |
| madcowswe | 0:31713f62f35b | 123 | |
| madcowswe | 0:31713f62f35b | 124 | |
| madcowswe | 0:31713f62f35b | 125 | #define TD_ROUNDING (u32)0x00040000 |
| madcowswe | 0:31713f62f35b | 126 | #define TD_SETUP (u32)0x00000000 |
| madcowswe | 0:31713f62f35b | 127 | #define TD_IN (u32)0x00100000 |
| madcowswe | 0:31713f62f35b | 128 | #define TD_OUT (u32)0x00080000 |
| madcowswe | 0:31713f62f35b | 129 | #define TD_DELAY_INT(x) (u32)((x) << 21) |
| madcowswe | 0:31713f62f35b | 130 | #define TD_TOGGLE_0 (u32)0x02000000 |
| madcowswe | 0:31713f62f35b | 131 | #define TD_TOGGLE_1 (u32)0x03000000 |
| madcowswe | 0:31713f62f35b | 132 | #define TD_CC (u32)0xF0000000 |
| madcowswe | 0:31713f62f35b | 133 | |
| madcowswe | 0:31713f62f35b | 134 | // HostController EndPoint Descriptor |
| madcowswe | 0:31713f62f35b | 135 | typedef struct { |
| madcowswe | 0:31713f62f35b | 136 | volatile u32 Control; |
| madcowswe | 0:31713f62f35b | 137 | volatile u32 TailTd; |
| madcowswe | 0:31713f62f35b | 138 | volatile u32 HeadTd; |
| madcowswe | 0:31713f62f35b | 139 | volatile u32 Next; |
| madcowswe | 0:31713f62f35b | 140 | } HCED; |
| madcowswe | 0:31713f62f35b | 141 | |
| madcowswe | 0:31713f62f35b | 142 | // HostController Transfer Descriptor |
| madcowswe | 0:31713f62f35b | 143 | typedef struct { |
| madcowswe | 0:31713f62f35b | 144 | volatile u32 Control; |
| madcowswe | 0:31713f62f35b | 145 | volatile u32 CurrBufPtr; |
| madcowswe | 0:31713f62f35b | 146 | volatile u32 Next; |
| madcowswe | 0:31713f62f35b | 147 | volatile u32 BufEnd; |
| madcowswe | 0:31713f62f35b | 148 | } HCTD; |
| madcowswe | 0:31713f62f35b | 149 | |
| madcowswe | 0:31713f62f35b | 150 | // Host Controller Communication Area |
| madcowswe | 0:31713f62f35b | 151 | typedef struct { |
| madcowswe | 0:31713f62f35b | 152 | volatile u32 InterruptTable[32]; |
| madcowswe | 0:31713f62f35b | 153 | volatile u16 FrameNumber; |
| madcowswe | 0:31713f62f35b | 154 | volatile u16 FrameNumberPad; |
| madcowswe | 0:31713f62f35b | 155 | volatile u32 DoneHead; |
| madcowswe | 0:31713f62f35b | 156 | volatile u8 Reserved[120]; |
| madcowswe | 0:31713f62f35b | 157 | } HCCA; |
| madcowswe | 0:31713f62f35b | 158 | |
| madcowswe | 0:31713f62f35b | 159 | //==================================================================================== |
| madcowswe | 0:31713f62f35b | 160 | //==================================================================================== |
| madcowswe | 0:31713f62f35b | 161 | |
| madcowswe | 0:31713f62f35b | 162 | class HostController; |
| madcowswe | 0:31713f62f35b | 163 | class Endpoint; |
| madcowswe | 0:31713f62f35b | 164 | class Device; |
| madcowswe | 0:31713f62f35b | 165 | |
| madcowswe | 0:31713f62f35b | 166 | // must be 3*16 bytes long |
| madcowswe | 0:31713f62f35b | 167 | class Endpoint |
| madcowswe | 0:31713f62f35b | 168 | { |
| madcowswe | 0:31713f62f35b | 169 | public: |
| madcowswe | 0:31713f62f35b | 170 | HCED EndpointDescriptor; // Pointer to EndpointDescriptor == Pointer to Endpoint |
| madcowswe | 0:31713f62f35b | 171 | HCTD TDHead; |
| madcowswe | 0:31713f62f35b | 172 | |
| madcowswe | 0:31713f62f35b | 173 | enum State |
| madcowswe | 0:31713f62f35b | 174 | { |
| madcowswe | 0:31713f62f35b | 175 | Free, |
| madcowswe | 0:31713f62f35b | 176 | NotQueued, |
| madcowswe | 0:31713f62f35b | 177 | Idle, |
| madcowswe | 0:31713f62f35b | 178 | SetupQueued, |
| madcowswe | 0:31713f62f35b | 179 | DataQueued, |
| madcowswe | 0:31713f62f35b | 180 | StatusQueued, |
| madcowswe | 0:31713f62f35b | 181 | CallbackPending |
| madcowswe | 0:31713f62f35b | 182 | }; |
| madcowswe | 0:31713f62f35b | 183 | |
| madcowswe | 0:31713f62f35b | 184 | volatile u8 CurrentState; |
| madcowswe | 0:31713f62f35b | 185 | u8 Flags; // 0x80 In, 0x03 mask endpoint type |
| madcowswe | 0:31713f62f35b | 186 | |
| madcowswe | 0:31713f62f35b | 187 | u16 Length; |
| madcowswe | 0:31713f62f35b | 188 | u8* Data; |
| madcowswe | 0:31713f62f35b | 189 | USBCallback Callback; // Must be a multiple of 16 bytes long |
| madcowswe | 0:31713f62f35b | 190 | void* UserData; |
| madcowswe | 0:31713f62f35b | 191 | |
| madcowswe | 0:31713f62f35b | 192 | int Address() |
| madcowswe | 0:31713f62f35b | 193 | { |
| madcowswe | 0:31713f62f35b | 194 | int ep = (EndpointDescriptor.Control >> 7) & 0xF; |
| madcowswe | 0:31713f62f35b | 195 | if (ep) |
| madcowswe | 0:31713f62f35b | 196 | ep |= Flags & 0x80; |
| madcowswe | 0:31713f62f35b | 197 | return ep; |
| madcowswe | 0:31713f62f35b | 198 | } |
| madcowswe | 0:31713f62f35b | 199 | |
| madcowswe | 0:31713f62f35b | 200 | int Device() |
| madcowswe | 0:31713f62f35b | 201 | { |
| madcowswe | 0:31713f62f35b | 202 | return EndpointDescriptor.Control & 0x7F; |
| madcowswe | 0:31713f62f35b | 203 | } |
| madcowswe | 0:31713f62f35b | 204 | |
| madcowswe | 0:31713f62f35b | 205 | int Status() |
| madcowswe | 0:31713f62f35b | 206 | { |
| madcowswe | 0:31713f62f35b | 207 | return (TDHead.Control >> 28) & 0xF; |
| madcowswe | 0:31713f62f35b | 208 | } |
| madcowswe | 0:31713f62f35b | 209 | |
| madcowswe | 0:31713f62f35b | 210 | u32 Enqueue(u32 head) |
| madcowswe | 0:31713f62f35b | 211 | { |
| madcowswe | 0:31713f62f35b | 212 | if (CurrentState == NotQueued) |
| madcowswe | 0:31713f62f35b | 213 | { |
| madcowswe | 0:31713f62f35b | 214 | EndpointDescriptor.Next = head; |
| madcowswe | 0:31713f62f35b | 215 | head = (u32)&EndpointDescriptor; |
| madcowswe | 0:31713f62f35b | 216 | CurrentState = Idle; |
| madcowswe | 0:31713f62f35b | 217 | } |
| madcowswe | 0:31713f62f35b | 218 | return head; |
| madcowswe | 0:31713f62f35b | 219 | } |
| madcowswe | 0:31713f62f35b | 220 | }; |
| madcowswe | 0:31713f62f35b | 221 | |
| madcowswe | 0:31713f62f35b | 222 | class Device |
| madcowswe | 0:31713f62f35b | 223 | { |
| madcowswe | 0:31713f62f35b | 224 | public: |
| madcowswe | 0:31713f62f35b | 225 | u8 _endpointMap[MAX_ENDPOINTS_PER_DEVICE*2]; |
| madcowswe | 0:31713f62f35b | 226 | u8 Hub; |
| madcowswe | 0:31713f62f35b | 227 | u8 Port; |
| madcowswe | 0:31713f62f35b | 228 | u8 Addr; |
| madcowswe | 0:31713f62f35b | 229 | u8 Pad; |
| madcowswe | 0:31713f62f35b | 230 | |
| madcowswe | 0:31713f62f35b | 231 | // Only if this device is a hub |
| madcowswe | 0:31713f62f35b | 232 | u8 HubPortCount; // nonzero if this is a hub |
| madcowswe | 0:31713f62f35b | 233 | u8 HubInterruptData; |
| madcowswe | 0:31713f62f35b | 234 | u8 HubMap; |
| madcowswe | 0:31713f62f35b | 235 | u8 HubMask; |
| madcowswe | 0:31713f62f35b | 236 | |
| madcowswe | 0:31713f62f35b | 237 | int Flags; // 1 = Disconnected |
| madcowswe | 0:31713f62f35b | 238 | |
| madcowswe | 0:31713f62f35b | 239 | Setup SetupBuffer; |
| madcowswe | 0:31713f62f35b | 240 | |
| madcowswe | 0:31713f62f35b | 241 | // Allocate endpoint zero |
| madcowswe | 0:31713f62f35b | 242 | int Init(DeviceDescriptor* d, int hub, int port, int addr, int lowSpeed) |
| madcowswe | 0:31713f62f35b | 243 | { |
| madcowswe | 0:31713f62f35b | 244 | Hub = hub; |
| madcowswe | 0:31713f62f35b | 245 | Port = port; |
| madcowswe | 0:31713f62f35b | 246 | Addr = addr; |
| madcowswe | 0:31713f62f35b | 247 | Flags = lowSpeed; |
| madcowswe | 0:31713f62f35b | 248 | memset(_endpointMap,0xFF,sizeof(_endpointMap)); |
| madcowswe | 0:31713f62f35b | 249 | return 0; |
| madcowswe | 0:31713f62f35b | 250 | } |
| madcowswe | 0:31713f62f35b | 251 | |
| madcowswe | 0:31713f62f35b | 252 | int SetEndpointIndex(int ep, int endpointIndex) |
| madcowswe | 0:31713f62f35b | 253 | { |
| madcowswe | 0:31713f62f35b | 254 | for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2) |
| madcowswe | 0:31713f62f35b | 255 | { |
| madcowswe | 0:31713f62f35b | 256 | if (_endpointMap[i] == 0xFF) // Add endpoint to map |
| madcowswe | 0:31713f62f35b | 257 | { |
| madcowswe | 0:31713f62f35b | 258 | _endpointMap[i] = ep; |
| madcowswe | 0:31713f62f35b | 259 | _endpointMap[i+1] = endpointIndex; |
| madcowswe | 0:31713f62f35b | 260 | return 0; |
| madcowswe | 0:31713f62f35b | 261 | } |
| madcowswe | 0:31713f62f35b | 262 | } |
| madcowswe | 0:31713f62f35b | 263 | return ERR_ENDPOINT_NONE_LEFT; |
| madcowswe | 0:31713f62f35b | 264 | } |
| madcowswe | 0:31713f62f35b | 265 | |
| madcowswe | 0:31713f62f35b | 266 | int GetEndpointIndex(int ep) |
| madcowswe | 0:31713f62f35b | 267 | { |
| madcowswe | 0:31713f62f35b | 268 | for (int i = 0; i < MAX_ENDPOINTS_PER_DEVICE*2; i += 2) |
| madcowswe | 0:31713f62f35b | 269 | { |
| madcowswe | 0:31713f62f35b | 270 | if (_endpointMap[i] == ep) |
| madcowswe | 0:31713f62f35b | 271 | return _endpointMap[i+1]; |
| madcowswe | 0:31713f62f35b | 272 | if (_endpointMap[i] == 0xFF) |
| madcowswe | 0:31713f62f35b | 273 | break; |
| madcowswe | 0:31713f62f35b | 274 | } |
| madcowswe | 0:31713f62f35b | 275 | return -1; |
| madcowswe | 0:31713f62f35b | 276 | } |
| madcowswe | 0:31713f62f35b | 277 | }; |
| madcowswe | 0:31713f62f35b | 278 | |
| madcowswe | 0:31713f62f35b | 279 | class HostController |
| madcowswe | 0:31713f62f35b | 280 | { |
| madcowswe | 0:31713f62f35b | 281 | public: |
| madcowswe | 0:31713f62f35b | 282 | HCCA CommunicationArea; |
| madcowswe | 0:31713f62f35b | 283 | Endpoint Endpoints[MAX_ENDPOINTS_TOTAL]; // Multiple of 16 |
| madcowswe | 0:31713f62f35b | 284 | |
| madcowswe | 0:31713f62f35b | 285 | Endpoint EndpointZero; // For device enumeration |
| madcowswe | 0:31713f62f35b | 286 | HCTD _commonTail; |
| madcowswe | 0:31713f62f35b | 287 | Setup _setupZero; |
| madcowswe | 0:31713f62f35b | 288 | |
| madcowswe | 0:31713f62f35b | 289 | Device Devices[MAX_DEVICES]; |
| madcowswe | 0:31713f62f35b | 290 | u32 _frameNumber; // 32 bit ms counter |
| madcowswe | 0:31713f62f35b | 291 | |
| madcowswe | 0:31713f62f35b | 292 | u8 _callbacksPending; // Endpoints with callbacks are pending, set from ISR via ProcessDoneQueue |
| madcowswe | 0:31713f62f35b | 293 | u8 _rootHubStatusChange; // Root hub status has changed, set from ISR |
| madcowswe | 0:31713f62f35b | 294 | u8 _unused0; |
| madcowswe | 0:31713f62f35b | 295 | u8 _unused1; |
| madcowswe | 0:31713f62f35b | 296 | |
| madcowswe | 0:31713f62f35b | 297 | u8 _connectPending; // Reset has initiated a connect |
| madcowswe | 0:31713f62f35b | 298 | u8 _connectCountdown; // Number of ms left after reset before we can connect |
| madcowswe | 0:31713f62f35b | 299 | u8 _connectHub; // Will connect on this hub |
| madcowswe | 0:31713f62f35b | 300 | u8 _connectPort; // ... and this port |
| madcowswe | 0:31713f62f35b | 301 | |
| madcowswe | 0:31713f62f35b | 302 | u8 SRAM[0]; // Start of free SRAM |
| madcowswe | 0:31713f62f35b | 303 | |
| madcowswe | 0:31713f62f35b | 304 | void Loop() |
| madcowswe | 0:31713f62f35b | 305 | { |
| madcowswe | 0:31713f62f35b | 306 | //wait_ms(1000); Its ok to run the usb loop as slow as you like! |
| madcowswe | 0:31713f62f35b | 307 | u16 elapsed = CommunicationArea.FrameNumber - (u16)_frameNumber; // extend to 32 bits |
| madcowswe | 0:31713f62f35b | 308 | _frameNumber += elapsed; |
| madcowswe | 0:31713f62f35b | 309 | |
| madcowswe | 0:31713f62f35b | 310 | // Do callbacks, if any |
| madcowswe | 0:31713f62f35b | 311 | while (_callbacksPending) |
| madcowswe | 0:31713f62f35b | 312 | { |
| madcowswe | 0:31713f62f35b | 313 | for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++) |
| madcowswe | 0:31713f62f35b | 314 | { |
| madcowswe | 0:31713f62f35b | 315 | Endpoint* endpoint = Endpoints + i; |
| madcowswe | 0:31713f62f35b | 316 | if (endpoint->CurrentState == Endpoint::CallbackPending) |
| madcowswe | 0:31713f62f35b | 317 | { |
| madcowswe | 0:31713f62f35b | 318 | _callbacksPending--; |
| madcowswe | 0:31713f62f35b | 319 | endpoint->CurrentState = Endpoint::Idle; |
| madcowswe | 0:31713f62f35b | 320 | endpoint->Callback(endpoint->Device(),endpoint->Address(),endpoint->Status(),endpoint->Data,endpoint->Length,endpoint->UserData); |
| madcowswe | 0:31713f62f35b | 321 | } |
| madcowswe | 0:31713f62f35b | 322 | } |
| madcowswe | 0:31713f62f35b | 323 | } |
| madcowswe | 0:31713f62f35b | 324 | |
| madcowswe | 0:31713f62f35b | 325 | // Deal with changes on the root hub |
| madcowswe | 0:31713f62f35b | 326 | if (_rootHubStatusChange) |
| madcowswe | 0:31713f62f35b | 327 | { |
| madcowswe | 0:31713f62f35b | 328 | u32 status = LPC_USB->HcRhPortStatus1; |
| madcowswe | 0:31713f62f35b | 329 | _rootHubStatusChange = 0; |
| madcowswe | 0:31713f62f35b | 330 | if (status >> 16) |
| madcowswe | 0:31713f62f35b | 331 | { |
| madcowswe | 0:31713f62f35b | 332 | HubStatusChange(0,1,status); |
| madcowswe | 0:31713f62f35b | 333 | LPC_USB->HcRhPortStatus1 = status & 0xFFFF0000; // clear status changes |
| madcowswe | 0:31713f62f35b | 334 | } |
| madcowswe | 0:31713f62f35b | 335 | } |
| madcowswe | 0:31713f62f35b | 336 | |
| madcowswe | 0:31713f62f35b | 337 | // Connect after reset timeout |
| madcowswe | 0:31713f62f35b | 338 | if (_connectCountdown) |
| madcowswe | 0:31713f62f35b | 339 | { |
| madcowswe | 0:31713f62f35b | 340 | if (elapsed >= _connectCountdown) |
| madcowswe | 0:31713f62f35b | 341 | { |
| madcowswe | 0:31713f62f35b | 342 | _connectCountdown = 0; |
| madcowswe | 0:31713f62f35b | 343 | Connect(_connectHub,_connectPort & 0x7F,_connectPort & 0x80); |
| madcowswe | 0:31713f62f35b | 344 | } else |
| madcowswe | 0:31713f62f35b | 345 | _connectCountdown -= elapsed; |
| madcowswe | 0:31713f62f35b | 346 | } |
| madcowswe | 0:31713f62f35b | 347 | } |
| madcowswe | 0:31713f62f35b | 348 | |
| madcowswe | 0:31713f62f35b | 349 | // HubInterrupt - bitmap in dev->HubInterruptData |
| madcowswe | 0:31713f62f35b | 350 | void HubInterrupt(int device) |
| madcowswe | 0:31713f62f35b | 351 | { |
| madcowswe | 0:31713f62f35b | 352 | Device* dev = &Devices[device-1]; |
| madcowswe | 0:31713f62f35b | 353 | for (int i = 0; i < dev->HubPortCount; i++) |
| madcowswe | 0:31713f62f35b | 354 | { |
| madcowswe | 0:31713f62f35b | 355 | int port = i+1; |
| madcowswe | 0:31713f62f35b | 356 | if (dev->HubInterruptData & (1 << port)) |
| madcowswe | 0:31713f62f35b | 357 | { |
| madcowswe | 0:31713f62f35b | 358 | u32 status = 0; |
| madcowswe | 0:31713f62f35b | 359 | GetPortStatus(device,port,&status); |
| madcowswe | 0:31713f62f35b | 360 | if (status >> 16) |
| madcowswe | 0:31713f62f35b | 361 | { |
| madcowswe | 0:31713f62f35b | 362 | if (_connectPending && (status & ConnectStatusChange)) |
| madcowswe | 0:31713f62f35b | 363 | continue; // Don't connect again until previous device has been added and addressed |
| madcowswe | 0:31713f62f35b | 364 | |
| madcowswe | 0:31713f62f35b | 365 | HubStatusChange(device,port,status); |
| madcowswe | 0:31713f62f35b | 366 | if (status & ConnectStatusChange) |
| madcowswe | 0:31713f62f35b | 367 | ClearPortFeature(device,C_PORT_CONNECTION,port); |
| madcowswe | 0:31713f62f35b | 368 | if (status & PortResetStatusChange) |
| madcowswe | 0:31713f62f35b | 369 | ClearPortFeature(device,C_PORT_RESET,port); |
| madcowswe | 0:31713f62f35b | 370 | } |
| madcowswe | 0:31713f62f35b | 371 | } |
| madcowswe | 0:31713f62f35b | 372 | } |
| madcowswe | 0:31713f62f35b | 373 | } |
| madcowswe | 0:31713f62f35b | 374 | |
| madcowswe | 0:31713f62f35b | 375 | static void HubInterruptCallback(int device, int endpoint, int status, u8* data, int len, void* userData) |
| madcowswe | 0:31713f62f35b | 376 | { |
| madcowswe | 0:31713f62f35b | 377 | HostController* controller = (HostController*)userData; |
| madcowswe | 0:31713f62f35b | 378 | if (status == 0) |
| madcowswe | 0:31713f62f35b | 379 | controller->HubInterrupt(device); |
| madcowswe | 0:31713f62f35b | 380 | USBInterruptTransfer(device,endpoint,data,1,HubInterruptCallback,userData); |
| madcowswe | 0:31713f62f35b | 381 | } |
| madcowswe | 0:31713f62f35b | 382 | |
| madcowswe | 0:31713f62f35b | 383 | int InitHub(int device) |
| madcowswe | 0:31713f62f35b | 384 | { |
| madcowswe | 0:31713f62f35b | 385 | u8 buf[16]; |
| madcowswe | 0:31713f62f35b | 386 | int r= USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_DEVICE,GET_DESCRIPTOR,(DESCRIPTOR_TYPE_HUB << 8),0,buf,sizeof(buf)); |
| madcowswe | 0:31713f62f35b | 387 | if (r < 0) |
| madcowswe | 0:31713f62f35b | 388 | return ERR_HUB_INIT_FAILED; |
| madcowswe | 0:31713f62f35b | 389 | |
| madcowswe | 0:31713f62f35b | 390 | // turn on power on the hubs ports |
| madcowswe | 0:31713f62f35b | 391 | Device* dev = &Devices[device-1]; |
| madcowswe | 0:31713f62f35b | 392 | int ports = buf[2]; |
| madcowswe | 0:31713f62f35b | 393 | dev->HubPortCount = ports; |
| madcowswe | 0:31713f62f35b | 394 | for (int i = 0; i < ports; i++) |
| madcowswe | 0:31713f62f35b | 395 | SetPortPower(device,i+1); |
| madcowswe | 0:31713f62f35b | 396 | |
| madcowswe | 0:31713f62f35b | 397 | // Enable hub change interrupts |
| madcowswe | 0:31713f62f35b | 398 | return USBInterruptTransfer(device,0x81,&dev->HubInterruptData,1,HubInterruptCallback,this); |
| madcowswe | 0:31713f62f35b | 399 | } |
| madcowswe | 0:31713f62f35b | 400 | |
| madcowswe | 0:31713f62f35b | 401 | int AddEndpoint(int device, int ep, int attributes, int maxPacketSize, int interval) |
| madcowswe | 0:31713f62f35b | 402 | { |
| madcowswe | 0:31713f62f35b | 403 | LOG("AddEndpoint D:%02X A:%02X T:%02X P:%04X I:%02X\n",device,ep,attributes,maxPacketSize,interval); |
| madcowswe | 0:31713f62f35b | 404 | Device* dev = &Devices[device-1]; |
| madcowswe | 0:31713f62f35b | 405 | Endpoint* endpoint = AllocateEndpoint(device,ep,attributes,maxPacketSize); |
| madcowswe | 0:31713f62f35b | 406 | if (!endpoint) |
| madcowswe | 0:31713f62f35b | 407 | return ERR_ENDPOINT_NONE_LEFT; |
| madcowswe | 0:31713f62f35b | 408 | dev->SetEndpointIndex(ep,endpoint - Endpoints); |
| madcowswe | 0:31713f62f35b | 409 | endpoint->EndpointDescriptor.Control |= dev->Flags; // Map in slow speed |
| madcowswe | 0:31713f62f35b | 410 | return 0; // TODO ed->bInterval |
| madcowswe | 0:31713f62f35b | 411 | } |
| madcowswe | 0:31713f62f35b | 412 | |
| madcowswe | 0:31713f62f35b | 413 | int AddEndpoint(int device, EndpointDescriptor* ed) |
| madcowswe | 0:31713f62f35b | 414 | { |
| madcowswe | 0:31713f62f35b | 415 | return AddEndpoint(device,ed->bEndpointAddress,ed->bmAttributes,ed->wMaxPacketSize,ed->bInterval); |
| madcowswe | 0:31713f62f35b | 416 | } |
| madcowswe | 0:31713f62f35b | 417 | |
| madcowswe | 0:31713f62f35b | 418 | // allocate a endpoint |
| madcowswe | 0:31713f62f35b | 419 | Endpoint* AllocateEndpoint(int device, int endpointAddress, int type, int maxPacketSize) |
| madcowswe | 0:31713f62f35b | 420 | { |
| madcowswe | 0:31713f62f35b | 421 | for (int i = 0; i < MAX_ENDPOINTS_TOTAL; i++) |
| madcowswe | 0:31713f62f35b | 422 | { |
| madcowswe | 0:31713f62f35b | 423 | Endpoint* ep = &Endpoints[i]; |
| madcowswe | 0:31713f62f35b | 424 | if (ep->CurrentState == 0) |
| madcowswe | 0:31713f62f35b | 425 | { |
| madcowswe | 0:31713f62f35b | 426 | //LOG("Allocated endpoint %d to %02X:%02X\n",i,device,endpointAddress); |
| madcowswe | 0:31713f62f35b | 427 | ep->Flags = (endpointAddress & 0x80) | (type & 3); |
| madcowswe | 0:31713f62f35b | 428 | ep->CurrentState = Endpoint::NotQueued; |
| madcowswe | 0:31713f62f35b | 429 | ep->EndpointDescriptor.Control = (maxPacketSize << 16) | ((endpointAddress & 0x7F) << 7) | device; |
| madcowswe | 0:31713f62f35b | 430 | return ep; |
| madcowswe | 0:31713f62f35b | 431 | } |
| madcowswe | 0:31713f62f35b | 432 | } |
| madcowswe | 0:31713f62f35b | 433 | return 0; |
| madcowswe | 0:31713f62f35b | 434 | } |
| madcowswe | 0:31713f62f35b | 435 | |
| madcowswe | 0:31713f62f35b | 436 | Endpoint* GetEndpoint(int device, int ep) |
| madcowswe | 0:31713f62f35b | 437 | { |
| madcowswe | 0:31713f62f35b | 438 | if (device == 0) |
| madcowswe | 0:31713f62f35b | 439 | { |
| madcowswe | 0:31713f62f35b | 440 | //printf("WARNING: USING DEVICE 0\n"); |
| madcowswe | 0:31713f62f35b | 441 | return &EndpointZero; |
| madcowswe | 0:31713f62f35b | 442 | } |
| madcowswe | 0:31713f62f35b | 443 | if (device > MAX_DEVICES) |
| madcowswe | 0:31713f62f35b | 444 | return 0; |
| madcowswe | 0:31713f62f35b | 445 | int i = Devices[device-1].GetEndpointIndex(ep); |
| madcowswe | 0:31713f62f35b | 446 | if (i == -1) |
| madcowswe | 0:31713f62f35b | 447 | return 0; |
| madcowswe | 0:31713f62f35b | 448 | return Endpoints + i; |
| madcowswe | 0:31713f62f35b | 449 | } |
| madcowswe | 0:31713f62f35b | 450 | |
| madcowswe | 0:31713f62f35b | 451 | int Transfer(Endpoint* endpoint, int token, u8* data, int len, int state) |
| madcowswe | 0:31713f62f35b | 452 | { |
| madcowswe | 0:31713f62f35b | 453 | //LOG("Transfer %02X T:%d Len:%d S:%d\n",endpoint->Address(),token,len,state); |
| madcowswe | 0:31713f62f35b | 454 | |
| madcowswe | 0:31713f62f35b | 455 | int toggle = 0; |
| madcowswe | 0:31713f62f35b | 456 | if (endpoint->Address() == 0) |
| madcowswe | 0:31713f62f35b | 457 | toggle = (token == TOKEN_SETUP) ? TD_TOGGLE_0 : TD_TOGGLE_1; |
| madcowswe | 0:31713f62f35b | 458 | |
| madcowswe | 0:31713f62f35b | 459 | if (token != TOKEN_SETUP) |
| madcowswe | 0:31713f62f35b | 460 | token = (token == TOKEN_IN ? TD_IN : TD_OUT); |
| madcowswe | 0:31713f62f35b | 461 | |
| madcowswe | 0:31713f62f35b | 462 | HCTD* head = &endpoint->TDHead; |
| madcowswe | 0:31713f62f35b | 463 | HCTD* tail = &_commonTail; |
| madcowswe | 0:31713f62f35b | 464 | |
| madcowswe | 0:31713f62f35b | 465 | head->Control = TD_ROUNDING | token | TD_DELAY_INT(0) | toggle | TD_CC; |
| madcowswe | 0:31713f62f35b | 466 | head->CurrBufPtr = (u32)data; |
| madcowswe | 0:31713f62f35b | 467 | head->BufEnd = (u32)(data + len - 1); |
| madcowswe | 0:31713f62f35b | 468 | head->Next = (u32)tail; |
| madcowswe | 0:31713f62f35b | 469 | |
| madcowswe | 0:31713f62f35b | 470 | HCED* ed = &endpoint->EndpointDescriptor; |
| madcowswe | 0:31713f62f35b | 471 | ed->HeadTd = (u32)head | (ed->HeadTd & 0x00000002); // carry toggle |
| madcowswe | 0:31713f62f35b | 472 | ed->TailTd = (u32)tail; |
| madcowswe | 0:31713f62f35b | 473 | |
| madcowswe | 0:31713f62f35b | 474 | //HCTD* td = head; |
| madcowswe | 0:31713f62f35b | 475 | //LOG("%04X TD %08X %08X %08X Next:%08X\n",CommunicationArea.FrameNumber,td->Control,td->CurrBufPtr,td->BufEnd,td->Next); |
| madcowswe | 0:31713f62f35b | 476 | //LOG("%04X ED %08X %08X %08X\n",CommunicationArea.FrameNumber,ed->Control,ed->HeadTd,ed->TailTd); |
| madcowswe | 0:31713f62f35b | 477 | |
| madcowswe | 0:31713f62f35b | 478 | switch (endpoint->Flags & 3) |
| madcowswe | 0:31713f62f35b | 479 | { |
| madcowswe | 0:31713f62f35b | 480 | case ENDPOINT_CONTROL: |
| madcowswe | 0:31713f62f35b | 481 | LPC_USB->HcControlHeadED = endpoint->Enqueue(LPC_USB->HcControlHeadED); // May change state NotQueued->Idle |
| madcowswe | 0:31713f62f35b | 482 | endpoint->CurrentState = state; // Get in before an int |
| madcowswe | 0:31713f62f35b | 483 | LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | ControlListFilled; |
| madcowswe | 0:31713f62f35b | 484 | LPC_USB->HcControl = LPC_USB->HcControl | ControlListEnable; |
| madcowswe | 0:31713f62f35b | 485 | break; |
| madcowswe | 0:31713f62f35b | 486 | |
| madcowswe | 0:31713f62f35b | 487 | case ENDPOINT_BULK: |
| madcowswe | 0:31713f62f35b | 488 | LPC_USB->HcBulkHeadED = endpoint->Enqueue(LPC_USB->HcBulkHeadED); |
| madcowswe | 0:31713f62f35b | 489 | endpoint->CurrentState = state; |
| madcowswe | 0:31713f62f35b | 490 | LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | BulkListFilled; |
| madcowswe | 0:31713f62f35b | 491 | LPC_USB->HcControl = LPC_USB->HcControl | BulkListEnable; |
| madcowswe | 0:31713f62f35b | 492 | break; |
| madcowswe | 0:31713f62f35b | 493 | |
| madcowswe | 0:31713f62f35b | 494 | case ENDPOINT_INTERRUPT: |
| madcowswe | 0:31713f62f35b | 495 | CommunicationArea.InterruptTable[0] = endpoint->Enqueue(CommunicationArea.InterruptTable[0]); |
| madcowswe | 0:31713f62f35b | 496 | endpoint->CurrentState = state; |
| madcowswe | 0:31713f62f35b | 497 | LPC_USB->HcControl |= PeriodicListEnable; |
| madcowswe | 0:31713f62f35b | 498 | break; |
| madcowswe | 0:31713f62f35b | 499 | } |
| madcowswe | 0:31713f62f35b | 500 | return 0; |
| madcowswe | 0:31713f62f35b | 501 | } |
| madcowswe | 0:31713f62f35b | 502 | |
| madcowswe | 0:31713f62f35b | 503 | // Remove an endpoint from an active queue |
| madcowswe | 0:31713f62f35b | 504 | bool Remove(HCED* ed, volatile HCED** queue) |
| madcowswe | 0:31713f62f35b | 505 | { |
| madcowswe | 0:31713f62f35b | 506 | if (*queue == 0) |
| madcowswe | 0:31713f62f35b | 507 | return false; |
| madcowswe | 0:31713f62f35b | 508 | if (*queue == (volatile HCED*)ed) |
| madcowswe | 0:31713f62f35b | 509 | { |
| madcowswe | 0:31713f62f35b | 510 | *queue = (volatile HCED*)ed->Next; // At head of queue |
| madcowswe | 0:31713f62f35b | 511 | return true; |
| madcowswe | 0:31713f62f35b | 512 | } |
| madcowswe | 0:31713f62f35b | 513 | |
| madcowswe | 0:31713f62f35b | 514 | volatile HCED* head = *queue; |
| madcowswe | 0:31713f62f35b | 515 | while (head) |
| madcowswe | 0:31713f62f35b | 516 | { |
| madcowswe | 0:31713f62f35b | 517 | if (head->Next == (u32)ed) |
| madcowswe | 0:31713f62f35b | 518 | { |
| madcowswe | 0:31713f62f35b | 519 | head->Next = ed->Next; |
| madcowswe | 0:31713f62f35b | 520 | return true; |
| madcowswe | 0:31713f62f35b | 521 | } |
| madcowswe | 0:31713f62f35b | 522 | head = (volatile HCED*)head->Next; |
| madcowswe | 0:31713f62f35b | 523 | } |
| madcowswe | 0:31713f62f35b | 524 | return false; |
| madcowswe | 0:31713f62f35b | 525 | } |
| madcowswe | 0:31713f62f35b | 526 | |
| madcowswe | 0:31713f62f35b | 527 | void Release(Endpoint* endpoint) |
| madcowswe | 0:31713f62f35b | 528 | { |
| madcowswe | 0:31713f62f35b | 529 | if (endpoint->CurrentState == Endpoint::NotQueued) |
| madcowswe | 0:31713f62f35b | 530 | { |
| madcowswe | 0:31713f62f35b | 531 | // Never event used it, nothing to do |
| madcowswe | 0:31713f62f35b | 532 | } |
| madcowswe | 0:31713f62f35b | 533 | else |
| madcowswe | 0:31713f62f35b | 534 | { |
| madcowswe | 0:31713f62f35b | 535 | HCED* ed = (HCED*)endpoint; |
| madcowswe | 0:31713f62f35b | 536 | ed->Control |= 0x4000; // SKIP |
| madcowswe | 0:31713f62f35b | 537 | switch (endpoint->Flags & 0x03) |
| madcowswe | 0:31713f62f35b | 538 | { |
| madcowswe | 0:31713f62f35b | 539 | case ENDPOINT_CONTROL: |
| madcowswe | 0:31713f62f35b | 540 | Remove(ed,(volatile HCED**)&LPC_USB->HcControlHeadED); |
| madcowswe | 0:31713f62f35b | 541 | break; |
| madcowswe | 0:31713f62f35b | 542 | case ENDPOINT_BULK: |
| madcowswe | 0:31713f62f35b | 543 | Remove(ed,(volatile HCED**)&LPC_USB->HcBulkHeadED); |
| madcowswe | 0:31713f62f35b | 544 | break; |
| madcowswe | 0:31713f62f35b | 545 | case ENDPOINT_INTERRUPT: |
| madcowswe | 0:31713f62f35b | 546 | for (int i = 0; i < 32; i++) |
| madcowswe | 0:31713f62f35b | 547 | Remove(ed,(volatile HCED**)&CommunicationArea.InterruptTable[i]); |
| madcowswe | 0:31713f62f35b | 548 | break; |
| madcowswe | 0:31713f62f35b | 549 | } |
| madcowswe | 0:31713f62f35b | 550 | |
| madcowswe | 0:31713f62f35b | 551 | u16 fn = CommunicationArea.FrameNumber; |
| madcowswe | 0:31713f62f35b | 552 | while (fn == CommunicationArea.FrameNumber) |
| madcowswe | 0:31713f62f35b | 553 | ; // Wait for next frame |
| madcowswe | 0:31713f62f35b | 554 | |
| madcowswe | 0:31713f62f35b | 555 | } |
| madcowswe | 0:31713f62f35b | 556 | |
| madcowswe | 0:31713f62f35b | 557 | // In theory, the endpoint is now dead. |
| madcowswe | 0:31713f62f35b | 558 | // TODO: Will Callbacks ever be pending? BUGBUG |
| madcowswe | 0:31713f62f35b | 559 | memset(endpoint,0,sizeof(Endpoint)); |
| madcowswe | 0:31713f62f35b | 560 | } |
| madcowswe | 0:31713f62f35b | 561 | |
| madcowswe | 0:31713f62f35b | 562 | // Pop the last TD from the list |
| madcowswe | 0:31713f62f35b | 563 | HCTD* Reverse(HCTD* current) |
| madcowswe | 0:31713f62f35b | 564 | { |
| madcowswe | 0:31713f62f35b | 565 | HCTD *result = NULL,*temp; |
| madcowswe | 0:31713f62f35b | 566 | while (current) |
| madcowswe | 0:31713f62f35b | 567 | { |
| madcowswe | 0:31713f62f35b | 568 | temp = (HCTD*)current->Next; |
| madcowswe | 0:31713f62f35b | 569 | current->Next = (u32)result; |
| madcowswe | 0:31713f62f35b | 570 | result = current; |
| madcowswe | 0:31713f62f35b | 571 | current = temp; |
| madcowswe | 0:31713f62f35b | 572 | } |
| madcowswe | 0:31713f62f35b | 573 | return result; |
| madcowswe | 0:31713f62f35b | 574 | } |
| madcowswe | 0:31713f62f35b | 575 | |
| madcowswe | 0:31713f62f35b | 576 | // Called from interrupt... |
| madcowswe | 0:31713f62f35b | 577 | // Control endpoints use a state machine to progress through the transfers |
| madcowswe | 0:31713f62f35b | 578 | void ProcessDoneQueue(u32 tdList) |
| madcowswe | 0:31713f62f35b | 579 | { |
| madcowswe | 0:31713f62f35b | 580 | HCTD* list = Reverse((HCTD*)tdList); |
| madcowswe | 0:31713f62f35b | 581 | while (list) |
| madcowswe | 0:31713f62f35b | 582 | { |
| madcowswe | 0:31713f62f35b | 583 | Endpoint* endpoint = (Endpoint*)(list-1); |
| madcowswe | 0:31713f62f35b | 584 | list = (HCTD*)list->Next; |
| madcowswe | 0:31713f62f35b | 585 | int ep = endpoint->Address(); |
| madcowswe | 0:31713f62f35b | 586 | bool in = endpoint->Flags & 0x80; |
| madcowswe | 0:31713f62f35b | 587 | int status = (endpoint->TDHead.Control >> 28) & 0xF; |
| madcowswe | 0:31713f62f35b | 588 | |
| madcowswe | 0:31713f62f35b | 589 | //LOG("ProcessDoneQueue %02X %08X\n",ep,endpoint->TDHead.Control); |
| madcowswe | 0:31713f62f35b | 590 | |
| madcowswe | 0:31713f62f35b | 591 | if (status != 0) |
| madcowswe | 0:31713f62f35b | 592 | { |
| madcowswe | 0:31713f62f35b | 593 | LOG("ProcessDoneQueue status %02X %d\n",ep,status); |
| madcowswe | 0:31713f62f35b | 594 | endpoint->CurrentState = Endpoint::Idle; |
| madcowswe | 0:31713f62f35b | 595 | } else { |
| madcowswe | 0:31713f62f35b | 596 | switch (endpoint->CurrentState) |
| madcowswe | 0:31713f62f35b | 597 | { |
| madcowswe | 0:31713f62f35b | 598 | case Endpoint::SetupQueued: |
| madcowswe | 0:31713f62f35b | 599 | if (endpoint->Length == 0) |
| madcowswe | 0:31713f62f35b | 600 | Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Skip Data Phase |
| madcowswe | 0:31713f62f35b | 601 | else |
| madcowswe | 0:31713f62f35b | 602 | Transfer(endpoint,in ? TOKEN_IN : TOKEN_OUT,endpoint->Data,endpoint->Length, Endpoint::DataQueued); // Setup is done, now Data |
| madcowswe | 0:31713f62f35b | 603 | break; |
| madcowswe | 0:31713f62f35b | 604 | |
| madcowswe | 0:31713f62f35b | 605 | case Endpoint::DataQueued: |
| madcowswe | 0:31713f62f35b | 606 | if (endpoint->TDHead.CurrBufPtr) |
| madcowswe | 0:31713f62f35b | 607 | endpoint->Length = endpoint->TDHead.CurrBufPtr - (u32)endpoint->Data; |
| madcowswe | 0:31713f62f35b | 608 | |
| madcowswe | 0:31713f62f35b | 609 | if (ep == 0) |
| madcowswe | 0:31713f62f35b | 610 | Transfer(endpoint,in ? TOKEN_OUT : TOKEN_IN,0,0,Endpoint::StatusQueued); // Data is done, now Status, Control only |
| madcowswe | 0:31713f62f35b | 611 | else |
| madcowswe | 0:31713f62f35b | 612 | endpoint->CurrentState = Endpoint::Idle; |
| madcowswe | 0:31713f62f35b | 613 | break; |
| madcowswe | 0:31713f62f35b | 614 | |
| madcowswe | 0:31713f62f35b | 615 | case Endpoint::StatusQueued: // Transaction is done |
| madcowswe | 0:31713f62f35b | 616 | endpoint->CurrentState = Endpoint::Idle; |
| madcowswe | 0:31713f62f35b | 617 | break; |
| madcowswe | 0:31713f62f35b | 618 | } |
| madcowswe | 0:31713f62f35b | 619 | } |
| madcowswe | 0:31713f62f35b | 620 | |
| madcowswe | 0:31713f62f35b | 621 | // Complete, flag if we need a callback |
| madcowswe | 0:31713f62f35b | 622 | if (endpoint->Callback && endpoint->CurrentState == Endpoint::Idle) |
| madcowswe | 0:31713f62f35b | 623 | { |
| madcowswe | 0:31713f62f35b | 624 | endpoint->CurrentState = Endpoint::CallbackPending; |
| madcowswe | 0:31713f62f35b | 625 | _callbacksPending++; |
| madcowswe | 0:31713f62f35b | 626 | } |
| madcowswe | 0:31713f62f35b | 627 | } |
| madcowswe | 0:31713f62f35b | 628 | } |
| madcowswe | 0:31713f62f35b | 629 | |
| madcowswe | 0:31713f62f35b | 630 | // Hack to reset devices that don't want to connect |
| madcowswe | 0:31713f62f35b | 631 | int AddDevice(int hub, int port, bool isLowSpeed) |
| madcowswe | 0:31713f62f35b | 632 | { |
| madcowswe | 0:31713f62f35b | 633 | int device = AddDeviceCore(hub,port,isLowSpeed); |
| madcowswe | 0:31713f62f35b | 634 | if (device < 0) |
| madcowswe | 0:31713f62f35b | 635 | { |
| madcowswe | 0:31713f62f35b | 636 | LOG("========RETRY ADD DEVICE========\n"); // This will go for ever.. TODO power cycle root? |
| madcowswe | 0:31713f62f35b | 637 | Disconnect(hub,port); // Could not read descriptor at assigned address, reset this port and try again |
| madcowswe | 0:31713f62f35b | 638 | ResetPort(hub,port); // Cheap bluetooth dongles often need this on a hotplug |
| madcowswe | 0:31713f62f35b | 639 | return -1; |
| madcowswe | 0:31713f62f35b | 640 | } |
| madcowswe | 0:31713f62f35b | 641 | return device; |
| madcowswe | 0:31713f62f35b | 642 | } |
| madcowswe | 0:31713f62f35b | 643 | |
| madcowswe | 0:31713f62f35b | 644 | int AddDeviceCore(int hub, int port, bool isLowSpeed) |
| madcowswe | 0:31713f62f35b | 645 | { |
| madcowswe | 0:31713f62f35b | 646 | int lowSpeed = isLowSpeed ? 0x2000 : 0; |
| madcowswe | 0:31713f62f35b | 647 | DeviceDescriptor desc; |
| madcowswe | 0:31713f62f35b | 648 | EndpointZero.EndpointDescriptor.Control = (8 << 16) | lowSpeed; // MaxPacketSize == 8 |
| madcowswe | 0:31713f62f35b | 649 | int r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,8); |
| madcowswe | 0:31713f62f35b | 650 | if (r < 0) |
| madcowswe | 0:31713f62f35b | 651 | { |
| madcowswe | 0:31713f62f35b | 652 | LOG("FAILED TO LOAD DESCRIPTOR FOR DEVICE 0\n"); |
| madcowswe | 0:31713f62f35b | 653 | return r; |
| madcowswe | 0:31713f62f35b | 654 | } |
| madcowswe | 0:31713f62f35b | 655 | |
| madcowswe | 0:31713f62f35b | 656 | EndpointZero.EndpointDescriptor.Control = (desc.bMaxPacketSize << 16) | lowSpeed; // Actual MaxPacketSize |
| madcowswe | 0:31713f62f35b | 657 | r = GetDescriptor(0,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc)); |
| madcowswe | 0:31713f62f35b | 658 | if (r < 0) |
| madcowswe | 0:31713f62f35b | 659 | return r; |
| madcowswe | 0:31713f62f35b | 660 | |
| madcowswe | 0:31713f62f35b | 661 | LOG("\nClass %02X found %04X:%04X\n\n",desc.bDeviceClass,desc.idVendor,desc.idProduct); |
| madcowswe | 0:31713f62f35b | 662 | |
| madcowswe | 0:31713f62f35b | 663 | // Now assign the device an address, move off EndpointZero |
| madcowswe | 0:31713f62f35b | 664 | int device = 0; |
| madcowswe | 0:31713f62f35b | 665 | for (int i = 0; i < MAX_DEVICES; i++) |
| madcowswe | 0:31713f62f35b | 666 | { |
| madcowswe | 0:31713f62f35b | 667 | if (Devices[i].Port == 0) |
| madcowswe | 0:31713f62f35b | 668 | { |
| madcowswe | 0:31713f62f35b | 669 | device = i+1; |
| madcowswe | 0:31713f62f35b | 670 | break; |
| madcowswe | 0:31713f62f35b | 671 | } |
| madcowswe | 0:31713f62f35b | 672 | } |
| madcowswe | 0:31713f62f35b | 673 | if (!device) |
| madcowswe | 0:31713f62f35b | 674 | return ERR_DEVICE_NONE_LEFT; |
| madcowswe | 0:31713f62f35b | 675 | |
| madcowswe | 0:31713f62f35b | 676 | r = SetAddress(0,device); |
| madcowswe | 0:31713f62f35b | 677 | if (r) |
| madcowswe | 0:31713f62f35b | 678 | return r; |
| madcowswe | 0:31713f62f35b | 679 | DelayMS(2); |
| madcowswe | 0:31713f62f35b | 680 | |
| madcowswe | 0:31713f62f35b | 681 | // Now at a nonzero address, create control endpoint |
| madcowswe | 0:31713f62f35b | 682 | Device* dev = &Devices[device-1]; |
| madcowswe | 0:31713f62f35b | 683 | dev->Init(&desc,hub,port,device,lowSpeed); |
| madcowswe | 0:31713f62f35b | 684 | AddEndpoint(device,0,ENDPOINT_CONTROL,desc.bMaxPacketSize,0); |
| madcowswe | 0:31713f62f35b | 685 | _connectPending = 0; |
| madcowswe | 0:31713f62f35b | 686 | |
| madcowswe | 0:31713f62f35b | 687 | // Verify this all works |
| madcowswe | 0:31713f62f35b | 688 | r = GetDescriptor(device,DESCRIPTOR_TYPE_DEVICE,0,(u8*)&desc,sizeof(desc)); |
| madcowswe | 0:31713f62f35b | 689 | if (r < 0) |
| madcowswe | 0:31713f62f35b | 690 | return r; |
| madcowswe | 0:31713f62f35b | 691 | |
| madcowswe | 0:31713f62f35b | 692 | // Set to interface 0 by default |
| madcowswe | 0:31713f62f35b | 693 | // Calls LoadDevice if interface is found |
| madcowswe | 0:31713f62f35b | 694 | r = SetConfigurationAndInterface(device,1,1/*0*/,&desc); |
| madcowswe | 0:31713f62f35b | 695 | |
| madcowswe | 0:31713f62f35b | 696 | if (desc.bDeviceClass == CLASS_HUB) |
| madcowswe | 0:31713f62f35b | 697 | InitHub(device); // Handle hubs in this code |
| madcowswe | 0:31713f62f35b | 698 | |
| madcowswe | 0:31713f62f35b | 699 | return device; |
| madcowswe | 0:31713f62f35b | 700 | } |
| madcowswe | 0:31713f62f35b | 701 | |
| madcowswe | 0:31713f62f35b | 702 | // Walk descriptors and create endpoints for a given device |
| madcowswe | 0:31713f62f35b | 703 | // TODO configuration !=1, alternate settings etc. |
| madcowswe | 0:31713f62f35b | 704 | int SetConfigurationAndInterface(int device, int configuration, int interfaceNumber, DeviceDescriptor* desc) |
| madcowswe | 0:31713f62f35b | 705 | { |
| madcowswe | 0:31713f62f35b | 706 | u8 buffer[255]; |
| madcowswe | 0:31713f62f35b | 707 | int err = GetDescriptor(device,DESCRIPTOR_TYPE_CONFIGURATION,0,buffer,sizeof(buffer)); |
| madcowswe | 0:31713f62f35b | 708 | if (err < 0) |
| madcowswe | 0:31713f62f35b | 709 | return err; |
| madcowswe | 0:31713f62f35b | 710 | |
| madcowswe | 0:31713f62f35b | 711 | err = SetConfiguration(device,configuration); |
| madcowswe | 0:31713f62f35b | 712 | if (err < 0) |
| madcowswe | 0:31713f62f35b | 713 | return err; |
| madcowswe | 0:31713f62f35b | 714 | |
| madcowswe | 0:31713f62f35b | 715 | // Add the endpoints for this interface |
| madcowswe | 0:31713f62f35b | 716 | int len = buffer[2] | (buffer[3] << 8); |
| madcowswe | 0:31713f62f35b | 717 | printf("The len is %d\n", len); |
| madcowswe | 0:31713f62f35b | 718 | printf("We have %d interfaces\n", buffer[4]); |
| madcowswe | 0:31713f62f35b | 719 | //printf("Dumpin!\n"); |
| madcowswe | 0:31713f62f35b | 720 | //for (int rofl = 0; rofl < len; rofl++){ |
| madcowswe | 0:31713f62f35b | 721 | // printf("%X ", buffer[rofl]); |
| madcowswe | 0:31713f62f35b | 722 | //} |
| madcowswe | 0:31713f62f35b | 723 | printf("\n"); |
| madcowswe | 0:31713f62f35b | 724 | u8* bufflol = buffer; |
| madcowswe | 0:31713f62f35b | 725 | |
| madcowswe | 0:31713f62f35b | 726 | u8* d = buffer; |
| madcowswe | 0:31713f62f35b | 727 | u8* end = d + len; |
| madcowswe | 0:31713f62f35b | 728 | |
| madcowswe | 0:31713f62f35b | 729 | |
| madcowswe | 0:31713f62f35b | 730 | while (bufflol < end){ |
| madcowswe | 0:31713f62f35b | 731 | for (int rofl = 0; rofl < bufflol[0]; rofl++) |
| madcowswe | 0:31713f62f35b | 732 | printf("%X ", bufflol[rofl]); |
| madcowswe | 0:31713f62f35b | 733 | printf("\n"); |
| madcowswe | 0:31713f62f35b | 734 | bufflol += bufflol[0]; |
| madcowswe | 0:31713f62f35b | 735 | } |
| madcowswe | 0:31713f62f35b | 736 | |
| madcowswe | 0:31713f62f35b | 737 | InterfaceDescriptor* found = 0; |
| madcowswe | 0:31713f62f35b | 738 | while (d < end) |
| madcowswe | 0:31713f62f35b | 739 | { |
| madcowswe | 0:31713f62f35b | 740 | if (d[1] == DESCRIPTOR_TYPE_INTERFACE) |
| madcowswe | 0:31713f62f35b | 741 | { |
| madcowswe | 0:31713f62f35b | 742 | InterfaceDescriptor* id = (InterfaceDescriptor*)d; |
| madcowswe | 0:31713f62f35b | 743 | if (id->bInterfaceNumber == interfaceNumber) |
| madcowswe | 0:31713f62f35b | 744 | { |
| madcowswe | 0:31713f62f35b | 745 | found = id; |
| madcowswe | 0:31713f62f35b | 746 | d += d[0]; |
| madcowswe | 0:31713f62f35b | 747 | while (d < end && d[1] != DESCRIPTOR_TYPE_INTERFACE) //Note, this will skipp all other interfaces than interface 0 |
| madcowswe | 0:31713f62f35b | 748 | { |
| madcowswe | 0:31713f62f35b | 749 | switch (d[1]) |
| madcowswe | 0:31713f62f35b | 750 | { |
| madcowswe | 0:31713f62f35b | 751 | case DESCRIPTOR_TYPE_ENDPOINT: |
| madcowswe | 0:31713f62f35b | 752 | AddEndpoint(device,(EndpointDescriptor*)d); |
| madcowswe | 0:31713f62f35b | 753 | printf("Trying to add endpoint\n"); |
| madcowswe | 0:31713f62f35b | 754 | break; |
| madcowswe | 0:31713f62f35b | 755 | default: |
| madcowswe | 0:31713f62f35b | 756 | LOG("Skipping descriptor %02X (%d bytes)\n",d[1],d[0]); |
| madcowswe | 0:31713f62f35b | 757 | } |
| madcowswe | 0:31713f62f35b | 758 | d += d[0]; |
| madcowswe | 0:31713f62f35b | 759 | } |
| madcowswe | 0:31713f62f35b | 760 | } |
| madcowswe | 0:31713f62f35b | 761 | else |
| madcowswe | 0:31713f62f35b | 762 | { |
| madcowswe | 0:31713f62f35b | 763 | printf("Skipped an interface, not the cool one\n"); |
| madcowswe | 0:31713f62f35b | 764 | } |
| madcowswe | 0:31713f62f35b | 765 | } |
| madcowswe | 0:31713f62f35b | 766 | d += d[0]; |
| madcowswe | 0:31713f62f35b | 767 | } |
| madcowswe | 0:31713f62f35b | 768 | |
| madcowswe | 0:31713f62f35b | 769 | if (!found) |
| madcowswe | 0:31713f62f35b | 770 | return ERR_INTERFACE_NOT_FOUND; |
| madcowswe | 0:31713f62f35b | 771 | OnLoadDevice(device,desc,found); |
| madcowswe | 0:31713f62f35b | 772 | return 0; |
| madcowswe | 0:31713f62f35b | 773 | } |
| madcowswe | 0:31713f62f35b | 774 | |
| madcowswe | 0:31713f62f35b | 775 | void Init() |
| madcowswe | 0:31713f62f35b | 776 | { |
| madcowswe | 0:31713f62f35b | 777 | LOG("USB INIT (Controller is %d bytes)\n",sizeof(*this)); |
| madcowswe | 0:31713f62f35b | 778 | memset(this,0,sizeof(HostController)); |
| madcowswe | 0:31713f62f35b | 779 | EndpointZero.CurrentState = Endpoint::NotQueued; |
| madcowswe | 0:31713f62f35b | 780 | HWInit(&CommunicationArea); |
| madcowswe | 0:31713f62f35b | 781 | DelayMS(10); |
| madcowswe | 0:31713f62f35b | 782 | } |
| madcowswe | 0:31713f62f35b | 783 | |
| madcowswe | 0:31713f62f35b | 784 | void ResetPort(int hub, int port) |
| madcowswe | 0:31713f62f35b | 785 | { |
| madcowswe | 0:31713f62f35b | 786 | LOG("ResetPort Hub:%d Port:%d\n",hub,port); |
| madcowswe | 0:31713f62f35b | 787 | _connectPending++; // Only reset/add 1 device at a time |
| madcowswe | 0:31713f62f35b | 788 | if (hub == 0) |
| madcowswe | 0:31713f62f35b | 789 | LPC_USB->HcRhPortStatus1 = PortResetStatus; // Reset Root Hub, port 1 |
| madcowswe | 0:31713f62f35b | 790 | else |
| madcowswe | 0:31713f62f35b | 791 | SetPortReset(hub,port); // or reset other hub |
| madcowswe | 0:31713f62f35b | 792 | } |
| madcowswe | 0:31713f62f35b | 793 | |
| madcowswe | 0:31713f62f35b | 794 | void Disconnect(int hub, int port) |
| madcowswe | 0:31713f62f35b | 795 | { |
| madcowswe | 0:31713f62f35b | 796 | LOG("Disconnect Hub:%d Port:%d\n",hub,port); // Mark a device for destruction |
| madcowswe | 0:31713f62f35b | 797 | for (int i = 0; i < MAX_DEVICES; i++) |
| madcowswe | 0:31713f62f35b | 798 | { |
| madcowswe | 0:31713f62f35b | 799 | Device* dev = Devices + i; |
| madcowswe | 0:31713f62f35b | 800 | if (dev->Port == port && dev->Hub == hub) |
| madcowswe | 0:31713f62f35b | 801 | { |
| madcowswe | 0:31713f62f35b | 802 | // Disconnect everything that is attached to this device if it is a hub |
| madcowswe | 0:31713f62f35b | 803 | for (int p = 0; p < dev->HubPortCount; p++) |
| madcowswe | 0:31713f62f35b | 804 | Disconnect(i+1,p+1); |
| madcowswe | 0:31713f62f35b | 805 | |
| madcowswe | 0:31713f62f35b | 806 | // Now release endpoints |
| madcowswe | 0:31713f62f35b | 807 | for (int j = 1; j < MAX_ENDPOINTS_PER_DEVICE*2; j += 2) |
| madcowswe | 0:31713f62f35b | 808 | { |
| madcowswe | 0:31713f62f35b | 809 | u8 endpointIndex = dev->_endpointMap[j]; |
| madcowswe | 0:31713f62f35b | 810 | if (endpointIndex != 0xFF) |
| madcowswe | 0:31713f62f35b | 811 | Release(Endpoints + endpointIndex); |
| madcowswe | 0:31713f62f35b | 812 | } |
| madcowswe | 0:31713f62f35b | 813 | dev->Port = 0; // Device is now free |
| madcowswe | 0:31713f62f35b | 814 | dev->Flags = 0; |
| madcowswe | 0:31713f62f35b | 815 | return; |
| madcowswe | 0:31713f62f35b | 816 | } |
| madcowswe | 0:31713f62f35b | 817 | } |
| madcowswe | 0:31713f62f35b | 818 | } |
| madcowswe | 0:31713f62f35b | 819 | |
| madcowswe | 0:31713f62f35b | 820 | // called after reset |
| madcowswe | 0:31713f62f35b | 821 | void Connect(int hub, int port, bool lowspeed) |
| madcowswe | 0:31713f62f35b | 822 | { |
| madcowswe | 0:31713f62f35b | 823 | LOG("Connect Hub:%d Port:%d %s\n",hub,port,lowspeed ? "slow" : "full"); |
| madcowswe | 0:31713f62f35b | 824 | AddDevice(hub,port,lowspeed); |
| madcowswe | 0:31713f62f35b | 825 | } |
| madcowswe | 0:31713f62f35b | 826 | |
| madcowswe | 0:31713f62f35b | 827 | // Called from interrupt |
| madcowswe | 0:31713f62f35b | 828 | void HubStatusChange(int hub, int port, u32 status) |
| madcowswe | 0:31713f62f35b | 829 | { |
| madcowswe | 0:31713f62f35b | 830 | LOG("HubStatusChange Hub:%d Port:%d %08X\n",hub,port,status); |
| madcowswe | 0:31713f62f35b | 831 | if (status & ConnectStatusChange) |
| madcowswe | 0:31713f62f35b | 832 | { |
| madcowswe | 0:31713f62f35b | 833 | if (status & CurrentConnectStatus) // Connecting |
| madcowswe | 0:31713f62f35b | 834 | ResetPort(hub,port); // Reset to initiate connect (state machine?) |
| madcowswe | 0:31713f62f35b | 835 | else |
| madcowswe | 0:31713f62f35b | 836 | Disconnect(hub,port); |
| madcowswe | 0:31713f62f35b | 837 | } |
| madcowswe | 0:31713f62f35b | 838 | |
| madcowswe | 0:31713f62f35b | 839 | if (status & PortResetStatusChange) |
| madcowswe | 0:31713f62f35b | 840 | { |
| madcowswe | 0:31713f62f35b | 841 | if (!(status & PortResetStatus)) |
| madcowswe | 0:31713f62f35b | 842 | { |
| madcowswe | 0:31713f62f35b | 843 | _connectCountdown = 200; // Schedule a connection in 200ms |
| madcowswe | 0:31713f62f35b | 844 | if (status & LowspeedDevice) |
| madcowswe | 0:31713f62f35b | 845 | port |= 0x80; |
| madcowswe | 0:31713f62f35b | 846 | _connectHub = hub; |
| madcowswe | 0:31713f62f35b | 847 | _connectPort = port; |
| madcowswe | 0:31713f62f35b | 848 | } |
| madcowswe | 0:31713f62f35b | 849 | } |
| madcowswe | 0:31713f62f35b | 850 | } |
| madcowswe | 0:31713f62f35b | 851 | |
| madcowswe | 0:31713f62f35b | 852 | #define HOST_CLK_EN (1<<0) |
| madcowswe | 0:31713f62f35b | 853 | #define PORTSEL_CLK_EN (1<<3) |
| madcowswe | 0:31713f62f35b | 854 | #define AHB_CLK_EN (1<<4) |
| madcowswe | 0:31713f62f35b | 855 | #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN) |
| madcowswe | 0:31713f62f35b | 856 | |
| madcowswe | 0:31713f62f35b | 857 | #define FRAMEINTERVAL (12000-1) // 1ms |
| madcowswe | 0:31713f62f35b | 858 | #define DEFAULT_FMINTERVAL ((((6 * (FRAMEINTERVAL - 210)) / 7) << 16) | FRAMEINTERVAL) |
| madcowswe | 0:31713f62f35b | 859 | |
| madcowswe | 0:31713f62f35b | 860 | void DelayMS(int ms) |
| madcowswe | 0:31713f62f35b | 861 | { |
| madcowswe | 0:31713f62f35b | 862 | u16 f = ms + CommunicationArea.FrameNumber; |
| madcowswe | 0:31713f62f35b | 863 | while (f != CommunicationArea.FrameNumber) |
| madcowswe | 0:31713f62f35b | 864 | ; |
| madcowswe | 0:31713f62f35b | 865 | } |
| madcowswe | 0:31713f62f35b | 866 | |
| madcowswe | 0:31713f62f35b | 867 | static void HWInit(HCCA* cca) |
| madcowswe | 0:31713f62f35b | 868 | { |
| madcowswe | 0:31713f62f35b | 869 | NVIC_DisableIRQ(USB_IRQn); |
| madcowswe | 0:31713f62f35b | 870 | |
| madcowswe | 0:31713f62f35b | 871 | // turn on power for USB |
| madcowswe | 0:31713f62f35b | 872 | LPC_SC->PCONP |= (1UL<<31); |
| madcowswe | 0:31713f62f35b | 873 | // Enable USB host clock, port selection and AHB clock |
| madcowswe | 0:31713f62f35b | 874 | LPC_USB->USBClkCtrl |= CLOCK_MASK; |
| madcowswe | 0:31713f62f35b | 875 | // Wait for clocks to become available |
| madcowswe | 0:31713f62f35b | 876 | while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK) |
| madcowswe | 0:31713f62f35b | 877 | ; |
| madcowswe | 0:31713f62f35b | 878 | |
| madcowswe | 0:31713f62f35b | 879 | // We are a Host |
| madcowswe | 0:31713f62f35b | 880 | LPC_USB->OTGStCtrl |= 1; |
| madcowswe | 0:31713f62f35b | 881 | LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN; // we don't need port selection clock until we do OTG |
| madcowswe | 0:31713f62f35b | 882 | |
| madcowswe | 0:31713f62f35b | 883 | // configure USB pins |
| madcowswe | 0:31713f62f35b | 884 | LPC_PINCON->PINSEL1 &= ~((3<<26)|(3<<28)); |
| madcowswe | 0:31713f62f35b | 885 | LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // USB D+/D- |
| madcowswe | 0:31713f62f35b | 886 | |
| madcowswe | 0:31713f62f35b | 887 | LPC_PINCON->PINSEL3 &= ~((3 << 6) | (3 << 22)); // USB_PPWR, USB_OVRCR |
| madcowswe | 0:31713f62f35b | 888 | LPC_PINCON->PINSEL3 |= ((2 << 6) | (2 << 22)); |
| madcowswe | 0:31713f62f35b | 889 | |
| madcowswe | 0:31713f62f35b | 890 | LPC_PINCON->PINSEL4 &= ~(3 << 18); // USB_CONNECT |
| madcowswe | 0:31713f62f35b | 891 | LPC_PINCON->PINSEL4 |= (1 << 18); |
| madcowswe | 0:31713f62f35b | 892 | |
| madcowswe | 0:31713f62f35b | 893 | // Reset OHCI block |
| madcowswe | 0:31713f62f35b | 894 | LPC_USB->HcControl = 0; |
| madcowswe | 0:31713f62f35b | 895 | LPC_USB->HcControlHeadED = 0; |
| madcowswe | 0:31713f62f35b | 896 | LPC_USB->HcBulkHeadED = 0; |
| madcowswe | 0:31713f62f35b | 897 | |
| madcowswe | 0:31713f62f35b | 898 | LPC_USB->HcCommandStatus = HostControllerReset; |
| madcowswe | 0:31713f62f35b | 899 | LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; |
| madcowswe | 0:31713f62f35b | 900 | LPC_USB->HcPeriodicStart = FRAMEINTERVAL*90/100; |
| madcowswe | 0:31713f62f35b | 901 | |
| madcowswe | 0:31713f62f35b | 902 | LPC_USB->HcControl = (LPC_USB->HcControl & (~HostControllerFunctionalState)) | OperationalMask; |
| madcowswe | 0:31713f62f35b | 903 | LPC_USB->HcRhStatus = SetGlobalPower; |
| madcowswe | 0:31713f62f35b | 904 | |
| madcowswe | 0:31713f62f35b | 905 | LPC_USB->HcHCCA = (u32)cca; |
| madcowswe | 0:31713f62f35b | 906 | LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus; |
| madcowswe | 0:31713f62f35b | 907 | LPC_USB->HcInterruptEnable = MasterInterruptEnable | WritebackDoneHead | RootHubStatusChange | FrameNumberOverflow; |
| madcowswe | 0:31713f62f35b | 908 | |
| madcowswe | 0:31713f62f35b | 909 | NVIC_SetPriority(USB_IRQn, 0); |
| madcowswe | 0:31713f62f35b | 910 | NVIC_EnableIRQ(USB_IRQn); |
| madcowswe | 0:31713f62f35b | 911 | while (cca->FrameNumber < 10) |
| madcowswe | 0:31713f62f35b | 912 | ; // 10ms delay before diving in |
| madcowswe | 0:31713f62f35b | 913 | } |
| madcowswe | 0:31713f62f35b | 914 | }; |
| madcowswe | 0:31713f62f35b | 915 | |
| madcowswe | 0:31713f62f35b | 916 | //==================================================================================== |
| madcowswe | 0:31713f62f35b | 917 | //==================================================================================== |
| madcowswe | 0:31713f62f35b | 918 | // Host controller instance and Interrupt handler |
| madcowswe | 0:31713f62f35b | 919 | |
| madcowswe | 0:31713f62f35b | 920 | static HostController _controller __attribute__((at(USB_RAM_BASE))); |
| madcowswe | 0:31713f62f35b | 921 | |
| madcowswe | 0:31713f62f35b | 922 | extern "C" void USB_IRQHandler(void) __irq; |
| madcowswe | 0:31713f62f35b | 923 | void USB_IRQHandler (void) __irq |
| madcowswe | 0:31713f62f35b | 924 | { |
| madcowswe | 0:31713f62f35b | 925 | u32 int_status = LPC_USB->HcInterruptStatus; |
| madcowswe | 0:31713f62f35b | 926 | |
| madcowswe | 0:31713f62f35b | 927 | if (int_status & RootHubStatusChange) // Root hub status change |
| madcowswe | 0:31713f62f35b | 928 | _controller._rootHubStatusChange++; // Just flag the controller, will be processed in USBLoop |
| madcowswe | 0:31713f62f35b | 929 | |
| madcowswe | 0:31713f62f35b | 930 | u32 head = 0; |
| madcowswe | 0:31713f62f35b | 931 | if (int_status & WritebackDoneHead) |
| madcowswe | 0:31713f62f35b | 932 | { |
| madcowswe | 0:31713f62f35b | 933 | head = _controller.CommunicationArea.DoneHead; // Writeback Done |
| madcowswe | 0:31713f62f35b | 934 | _controller.CommunicationArea.DoneHead = 0; |
| madcowswe | 0:31713f62f35b | 935 | } |
| madcowswe | 0:31713f62f35b | 936 | LPC_USB->HcInterruptStatus = int_status; |
| madcowswe | 0:31713f62f35b | 937 | |
| madcowswe | 0:31713f62f35b | 938 | if (head) |
| madcowswe | 0:31713f62f35b | 939 | _controller.ProcessDoneQueue(head); // TODO - low bit can be set BUGBUG |
| madcowswe | 0:31713f62f35b | 940 | |
| madcowswe | 0:31713f62f35b | 941 | //printf("SPAM\n"); |
| madcowswe | 0:31713f62f35b | 942 | } |
| madcowswe | 0:31713f62f35b | 943 | |
| madcowswe | 0:31713f62f35b | 944 | //==================================================================================== |
| madcowswe | 0:31713f62f35b | 945 | //==================================================================================== |
| madcowswe | 0:31713f62f35b | 946 | // API Methods |
| madcowswe | 0:31713f62f35b | 947 | |
| madcowswe | 0:31713f62f35b | 948 | void USBInit() |
| madcowswe | 0:31713f62f35b | 949 | { |
| madcowswe | 0:31713f62f35b | 950 | return _controller.Init(); |
| madcowswe | 0:31713f62f35b | 951 | } |
| madcowswe | 0:31713f62f35b | 952 | |
| madcowswe | 0:31713f62f35b | 953 | void USBLoop() |
| madcowswe | 0:31713f62f35b | 954 | { |
| madcowswe | 0:31713f62f35b | 955 | return _controller.Loop(); |
| madcowswe | 0:31713f62f35b | 956 | } |
| madcowswe | 0:31713f62f35b | 957 | |
| madcowswe | 0:31713f62f35b | 958 | u8* USBGetBuffer(u32* len) |
| madcowswe | 0:31713f62f35b | 959 | { |
| madcowswe | 0:31713f62f35b | 960 | *len = USB_RAM_SIZE - sizeof(HostController); |
| madcowswe | 0:31713f62f35b | 961 | return _controller.SRAM; |
| madcowswe | 0:31713f62f35b | 962 | } |
| madcowswe | 0:31713f62f35b | 963 | |
| madcowswe | 0:31713f62f35b | 964 | static Setup* GetSetup(int device) |
| madcowswe | 0:31713f62f35b | 965 | { |
| madcowswe | 0:31713f62f35b | 966 | if (device == 0) |
| madcowswe | 0:31713f62f35b | 967 | return &_controller._setupZero; |
| madcowswe | 0:31713f62f35b | 968 | |
| madcowswe | 0:31713f62f35b | 969 | if (device < 1 || device > MAX_DEVICES) |
| madcowswe | 0:31713f62f35b | 970 | return 0; |
| madcowswe | 0:31713f62f35b | 971 | return &_controller.Devices[device-1].SetupBuffer; |
| madcowswe | 0:31713f62f35b | 972 | } |
| madcowswe | 0:31713f62f35b | 973 | |
| madcowswe | 0:31713f62f35b | 974 | // Loop until IO on endpoint is complete |
| madcowswe | 0:31713f62f35b | 975 | static int WaitIODone(Endpoint* endpoint) |
| madcowswe | 0:31713f62f35b | 976 | { |
| madcowswe | 0:31713f62f35b | 977 | if (endpoint->CurrentState == Endpoint::NotQueued) |
| madcowswe | 0:31713f62f35b | 978 | return 0; |
| madcowswe | 0:31713f62f35b | 979 | while (endpoint->CurrentState != Endpoint::Idle) |
| madcowswe | 0:31713f62f35b | 980 | USBLoop(); // May generate callbacks, mount or unmount devices etc |
| madcowswe | 0:31713f62f35b | 981 | int status = endpoint->Status(); |
| madcowswe | 0:31713f62f35b | 982 | if (status == 0) |
| madcowswe | 0:31713f62f35b | 983 | return endpoint->Length; |
| madcowswe | 0:31713f62f35b | 984 | return -status; |
| madcowswe | 0:31713f62f35b | 985 | } |
| madcowswe | 0:31713f62f35b | 986 | |
| madcowswe | 0:31713f62f35b | 987 | int USBTransfer(int device, int ep, u8 flags, u8* data, int length, USBCallback callback, void* userData) |
| madcowswe | 0:31713f62f35b | 988 | { |
| madcowswe | 0:31713f62f35b | 989 | Endpoint* endpoint = _controller.GetEndpoint(device,ep); |
| madcowswe | 0:31713f62f35b | 990 | if (!endpoint) |
| madcowswe | 0:31713f62f35b | 991 | return ERR_ENDPOINT_NOT_FOUND; |
| madcowswe | 0:31713f62f35b | 992 | |
| madcowswe | 0:31713f62f35b | 993 | WaitIODone(endpoint); |
| madcowswe | 0:31713f62f35b | 994 | endpoint->Flags = flags; |
| madcowswe | 0:31713f62f35b | 995 | endpoint->Data = data; |
| madcowswe | 0:31713f62f35b | 996 | endpoint->Length = length; |
| madcowswe | 0:31713f62f35b | 997 | endpoint->Callback = callback; |
| madcowswe | 0:31713f62f35b | 998 | endpoint->UserData = userData; |
| madcowswe | 0:31713f62f35b | 999 | if (ep == 0) |
| madcowswe | 0:31713f62f35b | 1000 | _controller.Transfer(endpoint,TOKEN_SETUP,(u8*)GetSetup(device),8,Endpoint::SetupQueued); |
| madcowswe | 0:31713f62f35b | 1001 | else |
| madcowswe | 0:31713f62f35b | 1002 | _controller.Transfer(endpoint,flags & 0x80 ? TOKEN_IN : TOKEN_OUT,data,length,Endpoint::DataQueued); |
| madcowswe | 0:31713f62f35b | 1003 | if (callback) |
| madcowswe | 0:31713f62f35b | 1004 | return IO_PENDING; |
| madcowswe | 0:31713f62f35b | 1005 | return WaitIODone(endpoint); |
| madcowswe | 0:31713f62f35b | 1006 | } |
| madcowswe | 0:31713f62f35b | 1007 | |
| madcowswe | 0:31713f62f35b | 1008 | int USBControlTransfer(int device, int request_type, int request, int value, int index, u8* data, int length, USBCallback callback, void * userData) |
| madcowswe | 0:31713f62f35b | 1009 | { |
| madcowswe | 0:31713f62f35b | 1010 | Setup* setup = GetSetup(device); |
| madcowswe | 0:31713f62f35b | 1011 | if (!setup) |
| madcowswe | 0:31713f62f35b | 1012 | return ERR_DEVICE_NOT_FOUND; |
| madcowswe | 0:31713f62f35b | 1013 | |
| madcowswe | 0:31713f62f35b | 1014 | // Async control calls may overwrite setup buffer of previous call, so we need to wait before setting up next call |
| madcowswe | 0:31713f62f35b | 1015 | WaitIODone(_controller.GetEndpoint(device,0)); |
| madcowswe | 0:31713f62f35b | 1016 | |
| madcowswe | 0:31713f62f35b | 1017 | setup->bm_request_type = request_type; |
| madcowswe | 0:31713f62f35b | 1018 | setup->b_request = request; |
| madcowswe | 0:31713f62f35b | 1019 | setup->w_value = value; |
| madcowswe | 0:31713f62f35b | 1020 | setup->w_index = index; |
| madcowswe | 0:31713f62f35b | 1021 | setup->w_length = length; |
| madcowswe | 0:31713f62f35b | 1022 | return USBTransfer(device,0,request_type & DEVICE_TO_HOST,data,length,callback,userData); |
| madcowswe | 0:31713f62f35b | 1023 | } |
| madcowswe | 0:31713f62f35b | 1024 | |
| madcowswe | 0:31713f62f35b | 1025 | int USBInterruptTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData) |
| madcowswe | 0:31713f62f35b | 1026 | { |
| madcowswe | 0:31713f62f35b | 1027 | return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_INTERRUPT,data,length,callback,userData); |
| madcowswe | 0:31713f62f35b | 1028 | } |
| madcowswe | 0:31713f62f35b | 1029 | |
| madcowswe | 0:31713f62f35b | 1030 | int USBBulkTransfer(int device, int ep, u8* data, int length, USBCallback callback, void* userData) |
| madcowswe | 0:31713f62f35b | 1031 | { |
| madcowswe | 0:31713f62f35b | 1032 | return USBTransfer(device,ep,(ep & 0x80) | ENDPOINT_BULK,data,length,callback,userData); |
| madcowswe | 0:31713f62f35b | 1033 | } |
| madcowswe | 0:31713f62f35b | 1034 | |
| madcowswe | 0:31713f62f35b | 1035 | int GetDescriptor(int device, int descType,int descIndex, u8* data, int length) |
| madcowswe | 0:31713f62f35b | 1036 | { |
| madcowswe | 0:31713f62f35b | 1037 | return USBControlTransfer(device,DEVICE_TO_HOST | RECIPIENT_DEVICE, GET_DESCRIPTOR,(descType << 8)|(descIndex), 0, data, length, 0); |
| madcowswe | 0:31713f62f35b | 1038 | } |
| madcowswe | 0:31713f62f35b | 1039 | |
| madcowswe | 0:31713f62f35b | 1040 | int GetString(int device, int index, char* dst, int length) |
| madcowswe | 0:31713f62f35b | 1041 | { |
| madcowswe | 0:31713f62f35b | 1042 | u8 buffer[255]; |
| madcowswe | 0:31713f62f35b | 1043 | int le = GetDescriptor(device,DESCRIPTOR_TYPE_STRING,index,buffer,sizeof(buffer)); |
| madcowswe | 0:31713f62f35b | 1044 | if (le < 0) |
| madcowswe | 0:31713f62f35b | 1045 | return le; |
| madcowswe | 0:31713f62f35b | 1046 | if (length < 1) |
| madcowswe | 0:31713f62f35b | 1047 | return -1; |
| madcowswe | 0:31713f62f35b | 1048 | length <<= 1; |
| madcowswe | 0:31713f62f35b | 1049 | if (le > length) |
| madcowswe | 0:31713f62f35b | 1050 | le = length; |
| madcowswe | 0:31713f62f35b | 1051 | for (int j = 2; j < le; j += 2) |
| madcowswe | 0:31713f62f35b | 1052 | *dst++ = buffer[j]; |
| madcowswe | 0:31713f62f35b | 1053 | *dst = 0; |
| madcowswe | 0:31713f62f35b | 1054 | return (le>>1)-1; |
| madcowswe | 0:31713f62f35b | 1055 | } |
| madcowswe | 0:31713f62f35b | 1056 | |
| madcowswe | 0:31713f62f35b | 1057 | int SetAddress(int device, int new_addr) |
| madcowswe | 0:31713f62f35b | 1058 | { |
| madcowswe | 0:31713f62f35b | 1059 | return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_ADDRESS, new_addr, 0, 0, 0, 0); |
| madcowswe | 0:31713f62f35b | 1060 | } |
| madcowswe | 0:31713f62f35b | 1061 | |
| madcowswe | 0:31713f62f35b | 1062 | int SetConfiguration(int device, int configNum) |
| madcowswe | 0:31713f62f35b | 1063 | { |
| madcowswe | 0:31713f62f35b | 1064 | return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_DEVICE, SET_CONFIGURATION, configNum, 0, 0, 0, 0); |
| madcowswe | 0:31713f62f35b | 1065 | } |
| madcowswe | 0:31713f62f35b | 1066 | |
| madcowswe | 0:31713f62f35b | 1067 | int SetInterface(int device, int ifNum, int altNum) |
| madcowswe | 0:31713f62f35b | 1068 | { |
| madcowswe | 0:31713f62f35b | 1069 | return USBControlTransfer(device,HOST_TO_DEVICE | RECIPIENT_INTERFACE, SET_INTERFACE, altNum, ifNum, 0, 0, 0); |
| madcowswe | 0:31713f62f35b | 1070 | } |
| madcowswe | 0:31713f62f35b | 1071 | |
| madcowswe | 0:31713f62f35b | 1072 | // HUB stuff |
| madcowswe | 0:31713f62f35b | 1073 | int SetPortFeature(int device, int feature, int index) |
| madcowswe | 0:31713f62f35b | 1074 | { |
| madcowswe | 0:31713f62f35b | 1075 | return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,SET_FEATURE,feature,index,0,0); |
| madcowswe | 0:31713f62f35b | 1076 | } |
| madcowswe | 0:31713f62f35b | 1077 | |
| madcowswe | 0:31713f62f35b | 1078 | int ClearPortFeature(int device, int feature, int index) |
| madcowswe | 0:31713f62f35b | 1079 | { |
| madcowswe | 0:31713f62f35b | 1080 | return USBControlTransfer(device,HOST_TO_DEVICE | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,CLEAR_FEATURE,feature,index,0,0); |
| madcowswe | 0:31713f62f35b | 1081 | } |
| madcowswe | 0:31713f62f35b | 1082 | |
| madcowswe | 0:31713f62f35b | 1083 | int SetPortPower(int device, int port) |
| madcowswe | 0:31713f62f35b | 1084 | { |
| madcowswe | 0:31713f62f35b | 1085 | int r = SetPortFeature(device,PORT_POWER,port); |
| madcowswe | 0:31713f62f35b | 1086 | _controller.DelayMS(20); // 80ms to turn on a hubs power... DESCRIPTOR? todo |
| madcowswe | 0:31713f62f35b | 1087 | return r; |
| madcowswe | 0:31713f62f35b | 1088 | } |
| madcowswe | 0:31713f62f35b | 1089 | |
| madcowswe | 0:31713f62f35b | 1090 | int SetPortReset(int device, int port) |
| madcowswe | 0:31713f62f35b | 1091 | { |
| madcowswe | 0:31713f62f35b | 1092 | return SetPortFeature(device,PORT_RESET,port); |
| madcowswe | 0:31713f62f35b | 1093 | } |
| madcowswe | 0:31713f62f35b | 1094 | |
| madcowswe | 0:31713f62f35b | 1095 | int GetPortStatus(int device, int port, u32* status) |
| madcowswe | 0:31713f62f35b | 1096 | { |
| madcowswe | 0:31713f62f35b | 1097 | return USBControlTransfer(device,DEVICE_TO_HOST | REQUEST_TYPE_CLASS | RECIPIENT_OTHER,GET_STATUS,0,port,(u8*)status,4); |
| madcowswe | 0:31713f62f35b | 1098 | } |