Takanobu Muraguchi / USBDevice

USB device stack

Dependents:   USBMSD_step1 USBMSD_step1_5 picossd_step1_2cs

targets/TARGET_Silicon_Labs/src/em_usbdep.c@73:72808bd55ce2, 2021-09-15 (annotated)

Committer:
muraguchi
Date:
Wed Sep 15 16:31:51 2021 +0000
Revision:
73:72808bd55ce2
Parent:
71:53949e6131f6 
AirioBase + 2 chip PicoSSD board

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 71:53949e6131f6 1 /**************************************************************************//**
Kojto 71:53949e6131f6 2 * @file em_usbdep.c
Kojto 71:53949e6131f6 3 * @brief USB protocol stack library, USB device endpoint handlers.
Kojto 71:53949e6131f6 4 * @version 3.20.14
Kojto 71:53949e6131f6 5 ******************************************************************************
Kojto 71:53949e6131f6 6 * @section License
Kojto 71:53949e6131f6 7 * <b>(C) Copyright 2014 Silicon Labs, http://www.silabs.com</b>
Kojto 71:53949e6131f6 8 *******************************************************************************
Kojto 71:53949e6131f6 9 *
Kojto 71:53949e6131f6 10 * Licensed under the Apache License, Version 2.0 (the "License");
Kojto 71:53949e6131f6 11 * you may not use this file except in compliance with the License.
Kojto 71:53949e6131f6 12 * You may obtain a copy of the License at
Kojto 71:53949e6131f6 13 *
Kojto 71:53949e6131f6 14 * http://www.apache.org/licenses/LICENSE-2.0
Kojto 71:53949e6131f6 15 *
Kojto 71:53949e6131f6 16 * Unless required by applicable law or agreed to in writing, software
Kojto 71:53949e6131f6 17 * distributed under the License is distributed on an "AS IS" BASIS,
Kojto 71:53949e6131f6 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Kojto 71:53949e6131f6 19 * See the License for the specific language governing permissions and
Kojto 71:53949e6131f6 20 * limitations under the License.
Kojto 71:53949e6131f6 21 *
Kojto 71:53949e6131f6 22 ******************************************************************************/
Kojto 71:53949e6131f6 23
Kojto 71:53949e6131f6 24 #include "em_device.h"
Kojto 71:53949e6131f6 25 #if defined( USB_PRESENT ) && ( USB_COUNT == 1 )
Kojto 71:53949e6131f6 26 #include "em_usb.h"
Kojto 71:53949e6131f6 27 #if defined( USB_DEVICE )
Kojto 71:53949e6131f6 28
Kojto 71:53949e6131f6 29 #include "em_usbtypes.h"
Kojto 71:53949e6131f6 30 #include "em_usbhal.h"
Kojto 71:53949e6131f6 31 #include "em_usbd.h"
Kojto 71:53949e6131f6 32
Kojto 71:53949e6131f6 33 #ifdef USB_USE_PRINTF
Kojto 71:53949e6131f6 34 static const char *epStatusStr[] = {
Kojto 71:53949e6131f6 35 "IDLE","TRANS","RECV","IN_S","OUT_S"
Kojto 71:53949e6131f6 36 };
Kojto 71:53949e6131f6 37 #endif
Kojto 71:53949e6131f6 38
Kojto 71:53949e6131f6 39 /** @cond DO_NOT_INCLUDE_WITH_DOXYGEN */
Kojto 71:53949e6131f6 40
Kojto 71:53949e6131f6 41 /*
Kojto 71:53949e6131f6 42 * USBDEP_Ep0Handler() is called each time a packet has been transmitted
Kojto 71:53949e6131f6 43 * or recieved on the default endpoint.
Kojto 71:53949e6131f6 44 * A state machine navigate us through the phases of a control transfer
Kojto 71:53949e6131f6 45 * according to "chapter 9" in the USB spec.
Kojto 71:53949e6131f6 46 */
Kojto 71:53949e6131f6 47 #if !defined( USB_DOEP0INT_STUPPKTRCVD )
Kojto 71:53949e6131f6 48 void USBDEP_Ep0Handler( USBD_Device_TypeDef *device )
Kojto 71:53949e6131f6 49 {
Kojto 71:53949e6131f6 50 int status;
Kojto 71:53949e6131f6 51 USBD_Ep_TypeDef *ep;
Kojto 71:53949e6131f6 52 static bool statusIn;
Kojto 71:53949e6131f6 53 static uint32_t xferred;
Kojto 71:53949e6131f6 54 static USB_XferCompleteCb_TypeDef callback;
Kojto 71:53949e6131f6 55
Kojto 71:53949e6131f6 56 ep = &device->ep[ 0 ];
Kojto 71:53949e6131f6 57
Kojto 71:53949e6131f6 58 #ifdef __MBED__
Kojto 71:53949e6131f6 59
Kojto 71:53949e6131f6 60 (void)xferred;
Kojto 71:53949e6131f6 61 (void)statusIn;
Kojto 71:53949e6131f6 62 (void)status;
Kojto 71:53949e6131f6 63
Kojto 71:53949e6131f6 64 USB_PRINTF("USBDEP: ep0 %s, rem %ld, z %d\n", epStatusStr[ep->state], ep->remaining, ep->zlp);
Kojto 71:53949e6131f6 65
Kojto 71:53949e6131f6 66 if ( ( ep->state == D_EP_TRANSMITTING ) || ( ep->state == D_EP_RECEIVING ) )
Kojto 71:53949e6131f6 67 {
Kojto 71:53949e6131f6 68 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 69
Kojto 71:53949e6131f6 70 if ( ep->xferCompleteCb )
Kojto 71:53949e6131f6 71 {
Kojto 71:53949e6131f6 72 callback = ep->xferCompleteCb;
Kojto 71:53949e6131f6 73 ep->xferCompleteCb = NULL;
Kojto 71:53949e6131f6 74 callback( USB_STATUS_OK, ep->xferred, ep->remaining );
Kojto 71:53949e6131f6 75 }
Kojto 71:53949e6131f6 76
Kojto 71:53949e6131f6 77 USBDHAL_ReenableEp0Setup(device);
Kojto 71:53949e6131f6 78 }
Kojto 71:53949e6131f6 79 else
Kojto 71:53949e6131f6 80 {
Kojto 71:53949e6131f6 81 device->callbacks->setupCmd(device->setup);
Kojto 71:53949e6131f6 82 }
Kojto 71:53949e6131f6 83
Kojto 71:53949e6131f6 84 #else /* not __MBED__ */
Kojto 71:53949e6131f6 85
Kojto 71:53949e6131f6 86 switch ( ep->state )
Kojto 71:53949e6131f6 87 {
Kojto 71:53949e6131f6 88 case D_EP_IDLE:
Kojto 71:53949e6131f6 89 ep->remaining = 0;
Kojto 71:53949e6131f6 90 ep->zlp = 0;
Kojto 71:53949e6131f6 91 callback = NULL;
Kojto 71:53949e6131f6 92 statusIn = false;
Kojto 71:53949e6131f6 93
Kojto 71:53949e6131f6 94 status = USBDCH9_SetupCmd( device );
Kojto 71:53949e6131f6 95
Kojto 71:53949e6131f6 96 if ( status == USB_STATUS_REQ_ERR )
Kojto 71:53949e6131f6 97 {
Kojto 71:53949e6131f6 98 ep->in = true;
Kojto 71:53949e6131f6 99 USBDHAL_StallEp( ep ); /* Stall Ep0 IN */
Kojto 71:53949e6131f6 100 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 101 USBDHAL_StallEp( ep ); /* Stall Ep0 OUT */
Kojto 71:53949e6131f6 102 USBDHAL_ReenableEp0Setup( device ); /* Prepare for next SETUP packet*/
Kojto 71:53949e6131f6 103 }
Kojto 71:53949e6131f6 104 else /* ( Status == USB_STATUS_OK ) */
Kojto 71:53949e6131f6 105 {
Kojto 71:53949e6131f6 106 if ( (ep->state == D_EP_RECEIVING) || (ep->state == D_EP_TRANSMITTING) )
Kojto 71:53949e6131f6 107 {
Kojto 71:53949e6131f6 108 callback = ep->xferCompleteCb;
Kojto 71:53949e6131f6 109 }
Kojto 71:53949e6131f6 110
Kojto 71:53949e6131f6 111 if ( ep->state != D_EP_RECEIVING )
Kojto 71:53949e6131f6 112 {
Kojto 71:53949e6131f6 113 if ( ep->remaining )
Kojto 71:53949e6131f6 114 {
Kojto 71:53949e6131f6 115 /* Data will be sent to host, check if a ZLP must be appended */
Kojto 71:53949e6131f6 116 if ( ( ep->remaining < device->setup->wLength ) &&
Kojto 71:53949e6131f6 117 ( ep->remaining % ep->packetSize == 0 ) )
Kojto 71:53949e6131f6 118 {
Kojto 71:53949e6131f6 119 ep->zlp = 1;
Kojto 71:53949e6131f6 120 }
Kojto 71:53949e6131f6 121 }
Kojto 71:53949e6131f6 122 else
Kojto 71:53949e6131f6 123 {
Kojto 71:53949e6131f6 124 /* Prepare for next SETUP packet*/
Kojto 71:53949e6131f6 125 USBDHAL_ReenableEp0Setup( device );
Kojto 71:53949e6131f6 126
Kojto 71:53949e6131f6 127 /* No data stage, a ZLP may have been sent. If not, send one */
Kojto 71:53949e6131f6 128
Kojto 71:53949e6131f6 129 xferred = 0;
Kojto 71:53949e6131f6 130 if ( ep->zlp == 0 )
Kojto 71:53949e6131f6 131 {
Kojto 71:53949e6131f6 132 USBD_Write( 0, NULL, 0, NULL ); /* ACK to host */
Kojto 71:53949e6131f6 133 ep->state = D_EP0_IN_STATUS;
Kojto 71:53949e6131f6 134 }
Kojto 71:53949e6131f6 135 else
Kojto 71:53949e6131f6 136 {
Kojto 71:53949e6131f6 137 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 138 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 139 }
Kojto 71:53949e6131f6 140 }
Kojto 71:53949e6131f6 141 }
Kojto 71:53949e6131f6 142 }
Kojto 71:53949e6131f6 143 break;
Kojto 71:53949e6131f6 144
Kojto 71:53949e6131f6 145 case D_EP_RECEIVING:
Kojto 71:53949e6131f6 146 if ( ep->remaining )
Kojto 71:53949e6131f6 147 {
Kojto 71:53949e6131f6 148 /* There is more data to receive */
Kojto 71:53949e6131f6 149 USBD_ReArmEp0( ep );
Kojto 71:53949e6131f6 150 }
Kojto 71:53949e6131f6 151 else
Kojto 71:53949e6131f6 152 {
Kojto 71:53949e6131f6 153 status = USB_STATUS_OK;
Kojto 71:53949e6131f6 154 if ( callback != NULL )
Kojto 71:53949e6131f6 155 {
Kojto 71:53949e6131f6 156 status = callback( USB_STATUS_OK, ep->xferred, 0 );
Kojto 71:53949e6131f6 157 callback = NULL;
Kojto 71:53949e6131f6 158 }
Kojto 71:53949e6131f6 159
Kojto 71:53949e6131f6 160 if ( status != USB_STATUS_OK )
Kojto 71:53949e6131f6 161 {
Kojto 71:53949e6131f6 162 ep->in = true;
Kojto 71:53949e6131f6 163 USBDHAL_StallEp( ep ); /* Stall Ep0 IN */
Kojto 71:53949e6131f6 164 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 165 USBDHAL_StallEp( ep ); /* Stall Ep0 OUT */
Kojto 71:53949e6131f6 166 USBDHAL_ReenableEp0Setup( device ); /* Prepare for next SETUP pkt. */
Kojto 71:53949e6131f6 167 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 168 }
Kojto 71:53949e6131f6 169 else /* Everything OK, send a ZLP (ACK) to host */
Kojto 71:53949e6131f6 170 {
Kojto 71:53949e6131f6 171 USBDHAL_ReenableEp0Setup( device );/* Prepare for next SETUP packet*/
Kojto 71:53949e6131f6 172
Kojto 71:53949e6131f6 173 ep->state = D_EP_IDLE; /* USBD_Write() sets state back*/
Kojto 71:53949e6131f6 174 /* to EP_TRANSMITTING */
Kojto 71:53949e6131f6 175 USBD_Write( 0, NULL, 0, NULL );
Kojto 71:53949e6131f6 176 ep->state = D_EP0_IN_STATUS;
Kojto 71:53949e6131f6 177 }
Kojto 71:53949e6131f6 178 }
Kojto 71:53949e6131f6 179 break;
Kojto 71:53949e6131f6 180
Kojto 71:53949e6131f6 181 case D_EP_TRANSMITTING:
Kojto 71:53949e6131f6 182 if ( ep->remaining )
Kojto 71:53949e6131f6 183 {
Kojto 71:53949e6131f6 184 /* There is more data to transmit */
Kojto 71:53949e6131f6 185 USBD_ReArmEp0( ep );
Kojto 71:53949e6131f6 186 }
Kojto 71:53949e6131f6 187 else
Kojto 71:53949e6131f6 188 {
Kojto 71:53949e6131f6 189 /* All data transferred, is a ZLP packet needed ? */
Kojto 71:53949e6131f6 190 if ( ep->zlp == 1 )
Kojto 71:53949e6131f6 191 {
Kojto 71:53949e6131f6 192 xferred = ep->xferred;
Kojto 71:53949e6131f6 193 ep->state = D_EP_IDLE; /* USBD_Write() sets state back */
Kojto 71:53949e6131f6 194 /* to EP_TRANSMITTING */
Kojto 71:53949e6131f6 195 USBD_Write( 0, NULL, 0, NULL ); /* Send ZLP */
Kojto 71:53949e6131f6 196 ep->zlp = 2;
Kojto 71:53949e6131f6 197 }
Kojto 71:53949e6131f6 198 else
Kojto 71:53949e6131f6 199 {
Kojto 71:53949e6131f6 200 if ( ep->zlp == 0 )
Kojto 71:53949e6131f6 201 {
Kojto 71:53949e6131f6 202 xferred = ep->xferred;
Kojto 71:53949e6131f6 203 }
Kojto 71:53949e6131f6 204
Kojto 71:53949e6131f6 205 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 206 USBD_Read( 0, NULL, 0, NULL ); /* Get ZLP packet (ACK) from host */
Kojto 71:53949e6131f6 207 statusIn = true;
Kojto 71:53949e6131f6 208 ep->state = D_EP0_OUT_STATUS;
Kojto 71:53949e6131f6 209 }
Kojto 71:53949e6131f6 210 }
Kojto 71:53949e6131f6 211 break;
Kojto 71:53949e6131f6 212
Kojto 71:53949e6131f6 213 case D_EP0_IN_STATUS:
Kojto 71:53949e6131f6 214 case D_EP0_OUT_STATUS:
Kojto 71:53949e6131f6 215 if ( statusIn )
Kojto 71:53949e6131f6 216 {
Kojto 71:53949e6131f6 217 USBDHAL_ReenableEp0Setup( device );
Kojto 71:53949e6131f6 218 }
Kojto 71:53949e6131f6 219
Kojto 71:53949e6131f6 220 if ( callback != NULL )
Kojto 71:53949e6131f6 221 {
Kojto 71:53949e6131f6 222 callback( USB_STATUS_OK, xferred, 0 );
Kojto 71:53949e6131f6 223 }
Kojto 71:53949e6131f6 224
Kojto 71:53949e6131f6 225 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 226 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 227 break;
Kojto 71:53949e6131f6 228
Kojto 71:53949e6131f6 229 default:
Kojto 71:53949e6131f6 230 EFM_ASSERT( false );
Kojto 71:53949e6131f6 231 break;
Kojto 71:53949e6131f6 232 }
Kojto 71:53949e6131f6 233 #endif /* __MBED__ */
Kojto 71:53949e6131f6 234 }
Kojto 71:53949e6131f6 235 #endif
Kojto 71:53949e6131f6 236
Kojto 71:53949e6131f6 237 #if defined( USB_DOEP0INT_STUPPKTRCVD )
Kojto 71:53949e6131f6 238 void USBDEP_Ep0Handler( USBD_Device_TypeDef *device )
Kojto 71:53949e6131f6 239 {
Kojto 71:53949e6131f6 240 int status;
Kojto 71:53949e6131f6 241 USBD_Ep_TypeDef *ep;
Kojto 71:53949e6131f6 242 static uint32_t xferred;
Kojto 71:53949e6131f6 243 static USB_XferCompleteCb_TypeDef callback;
Kojto 71:53949e6131f6 244
Kojto 71:53949e6131f6 245 #ifdef __MBED__
Kojto 71:53949e6131f6 246
Kojto 71:53949e6131f6 247 (void)xferred;
Kojto 71:53949e6131f6 248 (void)status;
Kojto 71:53949e6131f6 249
Kojto 71:53949e6131f6 250 ep = &device->ep[ 0 ];
Kojto 71:53949e6131f6 251
Kojto 71:53949e6131f6 252 if ( ( ep->state == D_EP_TRANSMITTING ) || ( ep->state == D_EP_RECEIVING ) )
Kojto 71:53949e6131f6 253 {
Kojto 71:53949e6131f6 254 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 255
Kojto 71:53949e6131f6 256 if ( ep->xferCompleteCb )
Kojto 71:53949e6131f6 257 {
Kojto 71:53949e6131f6 258 callback = ep->xferCompleteCb;
Kojto 71:53949e6131f6 259 ep->xferCompleteCb = NULL;
Kojto 71:53949e6131f6 260 callback( USB_STATUS_OK, ep->xferred, ep->remaining );
Kojto 71:53949e6131f6 261 }
Kojto 71:53949e6131f6 262
Kojto 71:53949e6131f6 263 USBDHAL_StartEp0Setup( dev );
Kojto 71:53949e6131f6 264 }
Kojto 71:53949e6131f6 265 else
Kojto 71:53949e6131f6 266 {
Kojto 71:53949e6131f6 267 device->callbacks->setupCmd(device->setup);
Kojto 71:53949e6131f6 268 }
Kojto 71:53949e6131f6 269
Kojto 71:53949e6131f6 270 #else
Kojto 71:53949e6131f6 271
Kojto 71:53949e6131f6 272 ep = &device->ep[ 0 ];
Kojto 71:53949e6131f6 273
Kojto 71:53949e6131f6 274 switch ( ep->state )
Kojto 71:53949e6131f6 275 {
Kojto 71:53949e6131f6 276 case D_EP_IDLE:
Kojto 71:53949e6131f6 277 ep->zlp = 0;
Kojto 71:53949e6131f6 278 ep->remaining = 0;
Kojto 71:53949e6131f6 279 callback = NULL;
Kojto 71:53949e6131f6 280
Kojto 71:53949e6131f6 281 status = USBDCH9_SetupCmd( device );
Kojto 71:53949e6131f6 282
Kojto 71:53949e6131f6 283 if ( status == USB_STATUS_REQ_ERR )
Kojto 71:53949e6131f6 284 {
Kojto 71:53949e6131f6 285 ep->in = true;
Kojto 71:53949e6131f6 286 USBDHAL_StallEp( ep ); /* Stall Ep0 IN */
Kojto 71:53949e6131f6 287 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 288 USBDHAL_StallEp( ep ); /* Stall Ep0 OUT */
Kojto 71:53949e6131f6 289 USBDHAL_StartEp0Setup( dev ); /* Prepare for next SETUP packet*/
Kojto 71:53949e6131f6 290 }
Kojto 71:53949e6131f6 291 else /* ( Status == USB_STATUS_OK ) */
Kojto 71:53949e6131f6 292 {
Kojto 71:53949e6131f6 293 if ( (ep->state == D_EP_RECEIVING) || (ep->state == D_EP_TRANSMITTING) )
Kojto 71:53949e6131f6 294 {
Kojto 71:53949e6131f6 295 callback = ep->xferCompleteCb;
Kojto 71:53949e6131f6 296 }
Kojto 71:53949e6131f6 297
Kojto 71:53949e6131f6 298 if ( ep->state != D_EP_RECEIVING )
Kojto 71:53949e6131f6 299 {
Kojto 71:53949e6131f6 300 if ( ep->remaining )
Kojto 71:53949e6131f6 301 {
Kojto 71:53949e6131f6 302 /* Data will be sent to host, check if a ZLP must be appended */
Kojto 71:53949e6131f6 303 if ( ( ep->remaining < device->setup->wLength ) &&
Kojto 71:53949e6131f6 304 ( ep->remaining % ep->packetSize == 0 ) )
Kojto 71:53949e6131f6 305 {
Kojto 71:53949e6131f6 306 ep->zlp = 1;
Kojto 71:53949e6131f6 307 }
Kojto 71:53949e6131f6 308 }
Kojto 71:53949e6131f6 309 else
Kojto 71:53949e6131f6 310 {
Kojto 71:53949e6131f6 311 /* No data stage, a ZLP may have been sent. If not, send one */
Kojto 71:53949e6131f6 312 xferred = 0;
Kojto 71:53949e6131f6 313 if ( ep->zlp == 0 )
Kojto 71:53949e6131f6 314 {
Kojto 71:53949e6131f6 315 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 316 USBD_Write( 0, NULL, 0, NULL ); /* ACK to host */
Kojto 71:53949e6131f6 317 ep->state = D_EP0_IN_STATUS;
Kojto 71:53949e6131f6 318 }
Kojto 71:53949e6131f6 319 }
Kojto 71:53949e6131f6 320 }
Kojto 71:53949e6131f6 321 }
Kojto 71:53949e6131f6 322 break;
Kojto 71:53949e6131f6 323
Kojto 71:53949e6131f6 324 case D_EP_RECEIVING:
Kojto 71:53949e6131f6 325 if ( ep->remaining )
Kojto 71:53949e6131f6 326 {
Kojto 71:53949e6131f6 327 ep->in = false;
Kojto 71:53949e6131f6 328 USBD_ReArmEp0( ep );
Kojto 71:53949e6131f6 329 }
Kojto 71:53949e6131f6 330 else
Kojto 71:53949e6131f6 331 {
Kojto 71:53949e6131f6 332 status = USB_STATUS_OK;
Kojto 71:53949e6131f6 333 if ( callback != NULL )
Kojto 71:53949e6131f6 334 {
Kojto 71:53949e6131f6 335 status = callback( USB_STATUS_OK, ep->xferred, 0 );
Kojto 71:53949e6131f6 336 callback = NULL;
Kojto 71:53949e6131f6 337 }
Kojto 71:53949e6131f6 338
Kojto 71:53949e6131f6 339 if ( status != USB_STATUS_OK )
Kojto 71:53949e6131f6 340 {
Kojto 71:53949e6131f6 341 ep->in = true;
Kojto 71:53949e6131f6 342 USBDHAL_StallEp( ep ); /* Stall Ep0 IN */
Kojto 71:53949e6131f6 343 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 344 USBDHAL_StallEp( ep ); /* Stall Ep0 OUT */
Kojto 71:53949e6131f6 345 USBDHAL_StartEp0Setup( dev ); /* Prepare for next SETUP pkt. */
Kojto 71:53949e6131f6 346 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 347 }
Kojto 71:53949e6131f6 348 else
Kojto 71:53949e6131f6 349 {
Kojto 71:53949e6131f6 350
Kojto 71:53949e6131f6 351 USBDHAL_StartEp0Setup( dev ); /* Prepare for next SETUP packet*/
Kojto 71:53949e6131f6 352 ep->state = D_EP_IDLE; /* USBD_Write() sets state back */
Kojto 71:53949e6131f6 353 /* to EP_TRANSMITTING */
Kojto 71:53949e6131f6 354 USBD_Write( 0, NULL, 0, NULL );
Kojto 71:53949e6131f6 355 ep->state = D_EP0_IN_STATUS;
Kojto 71:53949e6131f6 356 }
Kojto 71:53949e6131f6 357 }
Kojto 71:53949e6131f6 358 break;
Kojto 71:53949e6131f6 359
Kojto 71:53949e6131f6 360 case D_EP_TRANSMITTING:
Kojto 71:53949e6131f6 361 if ( ep->remaining )
Kojto 71:53949e6131f6 362 {
Kojto 71:53949e6131f6 363 ep->in = true;
Kojto 71:53949e6131f6 364 USBD_ReArmEp0( ep );
Kojto 71:53949e6131f6 365 }
Kojto 71:53949e6131f6 366 else
Kojto 71:53949e6131f6 367 {
Kojto 71:53949e6131f6 368 if ( ep->zlp == 1 )
Kojto 71:53949e6131f6 369 {
Kojto 71:53949e6131f6 370 xferred = ep->xferred;
Kojto 71:53949e6131f6 371 ep->state = D_EP_IDLE; /* USBD_Write() sets state back */
Kojto 71:53949e6131f6 372 /* to EP_TRANSMITTING */
Kojto 71:53949e6131f6 373 USBD_Write( 0, NULL, 0, NULL ); /* Send ZLP */
Kojto 71:53949e6131f6 374 ep->zlp = 2;
Kojto 71:53949e6131f6 375 }
Kojto 71:53949e6131f6 376 else
Kojto 71:53949e6131f6 377 {
Kojto 71:53949e6131f6 378 if ( ep->zlp == 0 )
Kojto 71:53949e6131f6 379 {
Kojto 71:53949e6131f6 380 xferred = ep->xferred;
Kojto 71:53949e6131f6 381 }
Kojto 71:53949e6131f6 382
Kojto 71:53949e6131f6 383 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 384 USBD_Read( 0, NULL, 0, NULL ); /* Get ZLP packet (ACK) from host */
Kojto 71:53949e6131f6 385 ep->state = D_EP0_OUT_STATUS;
Kojto 71:53949e6131f6 386 }
Kojto 71:53949e6131f6 387 }
Kojto 71:53949e6131f6 388 break;
Kojto 71:53949e6131f6 389
Kojto 71:53949e6131f6 390 case D_EP0_IN_STATUS:
Kojto 71:53949e6131f6 391 if ( ( USB->DOEP0CTL & USB_DOEP0CTL_EPENA ) == 0 )
Kojto 71:53949e6131f6 392 {
Kojto 71:53949e6131f6 393 /* Prepare for more SETUP Packets */
Kojto 71:53949e6131f6 394 USBDHAL_StartEp0Setup( dev );
Kojto 71:53949e6131f6 395 }
Kojto 71:53949e6131f6 396 if ( callback != NULL )
Kojto 71:53949e6131f6 397 {
Kojto 71:53949e6131f6 398 callback( USB_STATUS_OK, xferred, 0 );
Kojto 71:53949e6131f6 399 }
Kojto 71:53949e6131f6 400 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 401 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 402 break;
Kojto 71:53949e6131f6 403
Kojto 71:53949e6131f6 404 case D_EP0_OUT_STATUS:
Kojto 71:53949e6131f6 405 USBDHAL_StartEp0Setup( dev ); /* Prepare for more SETUP Packets */
Kojto 71:53949e6131f6 406 if ( callback != NULL )
Kojto 71:53949e6131f6 407 {
Kojto 71:53949e6131f6 408 callback( USB_STATUS_OK, xferred, 0 );
Kojto 71:53949e6131f6 409 }
Kojto 71:53949e6131f6 410 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 411 ep->in = false; /* OUT for next SETUP */
Kojto 71:53949e6131f6 412 break;
Kojto 71:53949e6131f6 413 }
Kojto 71:53949e6131f6 414 #endif /* __MBED__ */
Kojto 71:53949e6131f6 415 }
Kojto 71:53949e6131f6 416 #endif
Kojto 71:53949e6131f6 417
Kojto 71:53949e6131f6 418 /*
Kojto 71:53949e6131f6 419 * USBDEP_EpHandler() is called each time a packet has been transmitted
Kojto 71:53949e6131f6 420 * or recieved on an endpoint other than the default endpoint.
Kojto 71:53949e6131f6 421 */
Kojto 71:53949e6131f6 422 void USBDEP_EpHandler( uint8_t epAddr )
Kojto 71:53949e6131f6 423 {
Kojto 71:53949e6131f6 424 USB_XferCompleteCb_TypeDef callback;
Kojto 71:53949e6131f6 425 USBD_Ep_TypeDef *ep = USBD_GetEpFromAddr( epAddr );
Kojto 71:53949e6131f6 426
Kojto 71:53949e6131f6 427 if ( ( ep->state == D_EP_TRANSMITTING ) || ( ep->state == D_EP_RECEIVING ) )
Kojto 71:53949e6131f6 428 {
Kojto 71:53949e6131f6 429 ep->state = D_EP_IDLE;
Kojto 71:53949e6131f6 430 if ( ep->xferCompleteCb )
Kojto 71:53949e6131f6 431 {
Kojto 71:53949e6131f6 432 callback = ep->xferCompleteCb;
Kojto 71:53949e6131f6 433 ep->xferCompleteCb = NULL;
Kojto 71:53949e6131f6 434 callback( USB_STATUS_OK, ep->xferred, ep->remaining );
Kojto 71:53949e6131f6 435 }
Kojto 71:53949e6131f6 436 }
Kojto 71:53949e6131f6 437 else
Kojto 71:53949e6131f6 438 {
Kojto 71:53949e6131f6 439 EFM_ASSERT( false );
Kojto 71:53949e6131f6 440 }
Kojto 71:53949e6131f6 441 }
Kojto 71:53949e6131f6 442
Kojto 71:53949e6131f6 443 /** @endcond */
Kojto 71:53949e6131f6 444
Kojto 71:53949e6131f6 445 #endif /* defined( USB_DEVICE ) */
Kojto 71:53949e6131f6 446 #endif /* defined( USB_PRESENT ) && ( USB_COUNT == 1 ) */