z ysaito / USBHost2

2018.07.26

Dependencies:   FATFileSystem2 mbed-rtos

Fork of USBHost by mbed official

USBHost/USBHALHost_LPC17.cpp@27:4206883f4cb7, 2015-01-19 (annotated)

Committer:
mbed_official
Date:
Mon Jan 19 14:30:37 2015 +0000
Revision:
27:4206883f4cb7
Child:
31:220cd93c9a5f
Synchronized with git revision 0ab8d2e6b3d884137dcb5c62d29a07abe132bac7



Full URL: https://github.com/mbedmicro/mbed/commit/0ab8d2e6b3d884137dcb5c62d29a07abe132bac7/



RZ_A1H - Implement some USB functions and fix some bugs about USBHost common codes.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 27:4206883f4cb7 1 /* mbed USBHost Library
mbed_official 27:4206883f4cb7 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 27:4206883f4cb7 3 *
mbed_official 27:4206883f4cb7 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 27:4206883f4cb7 5 * you may not use this file except in compliance with the License.
mbed_official 27:4206883f4cb7 6 * You may obtain a copy of the License at
mbed_official 27:4206883f4cb7 7 *
mbed_official 27:4206883f4cb7 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 27:4206883f4cb7 9 *
mbed_official 27:4206883f4cb7 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 27:4206883f4cb7 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 27:4206883f4cb7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 27:4206883f4cb7 13 * See the License for the specific language governing permissions and
mbed_official 27:4206883f4cb7 14 * limitations under the License.
mbed_official 27:4206883f4cb7 15 */
mbed_official 27:4206883f4cb7 16
mbed_official 27:4206883f4cb7 17 #if defined(TARGET_LPC1768)
mbed_official 27:4206883f4cb7 18
mbed_official 27:4206883f4cb7 19 #include "mbed.h"
mbed_official 27:4206883f4cb7 20 #include "USBHALHost.h"
mbed_official 27:4206883f4cb7 21 #include "dbg.h"
mbed_official 27:4206883f4cb7 22
mbed_official 27:4206883f4cb7 23 // bits of the USB/OTG clock control register
mbed_official 27:4206883f4cb7 24 #define HOST_CLK_EN (1<<0)
mbed_official 27:4206883f4cb7 25 #define DEV_CLK_EN (1<<1)
mbed_official 27:4206883f4cb7 26 #define PORTSEL_CLK_EN (1<<3)
mbed_official 27:4206883f4cb7 27 #define AHB_CLK_EN (1<<4)
mbed_official 27:4206883f4cb7 28
mbed_official 27:4206883f4cb7 29 // bits of the USB/OTG clock status register
mbed_official 27:4206883f4cb7 30 #define HOST_CLK_ON (1<<0)
mbed_official 27:4206883f4cb7 31 #define DEV_CLK_ON (1<<1)
mbed_official 27:4206883f4cb7 32 #define PORTSEL_CLK_ON (1<<3)
mbed_official 27:4206883f4cb7 33 #define AHB_CLK_ON (1<<4)
mbed_official 27:4206883f4cb7 34
mbed_official 27:4206883f4cb7 35 // we need host clock, OTG/portsel clock and AHB clock
mbed_official 27:4206883f4cb7 36 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
mbed_official 27:4206883f4cb7 37
mbed_official 27:4206883f4cb7 38 #define HCCA_SIZE sizeof(HCCA)
mbed_official 27:4206883f4cb7 39 #define ED_SIZE sizeof(HCED)
mbed_official 27:4206883f4cb7 40 #define TD_SIZE sizeof(HCTD)
mbed_official 27:4206883f4cb7 41
mbed_official 27:4206883f4cb7 42 #define TOTAL_SIZE (HCCA_SIZE + (MAX_ENDPOINT*ED_SIZE) + (MAX_TD*TD_SIZE))
mbed_official 27:4206883f4cb7 43
mbed_official 27:4206883f4cb7 44 static volatile uint8_t usb_buf[TOTAL_SIZE] __attribute((section("AHBSRAM1"),aligned(256))); //256 bytes aligned!
mbed_official 27:4206883f4cb7 45
mbed_official 27:4206883f4cb7 46 USBHALHost * USBHALHost::instHost;
mbed_official 27:4206883f4cb7 47
mbed_official 27:4206883f4cb7 48 USBHALHost::USBHALHost() {
mbed_official 27:4206883f4cb7 49 instHost = this;
mbed_official 27:4206883f4cb7 50 memInit();
mbed_official 27:4206883f4cb7 51 memset((void*)usb_hcca, 0, HCCA_SIZE);
mbed_official 27:4206883f4cb7 52 for (int i = 0; i < MAX_ENDPOINT; i++) {
mbed_official 27:4206883f4cb7 53 edBufAlloc[i] = false;
mbed_official 27:4206883f4cb7 54 }
mbed_official 27:4206883f4cb7 55 for (int i = 0; i < MAX_TD; i++) {
mbed_official 27:4206883f4cb7 56 tdBufAlloc[i] = false;
mbed_official 27:4206883f4cb7 57 }
mbed_official 27:4206883f4cb7 58 }
mbed_official 27:4206883f4cb7 59
mbed_official 27:4206883f4cb7 60 void USBHALHost::init() {
mbed_official 27:4206883f4cb7 61 NVIC_DisableIRQ(USB_IRQn);
mbed_official 27:4206883f4cb7 62
mbed_official 27:4206883f4cb7 63 //Cut power
mbed_official 27:4206883f4cb7 64 LPC_SC->PCONP &= ~(1UL<<31);
mbed_official 27:4206883f4cb7 65 wait_ms(100);
mbed_official 27:4206883f4cb7 66
mbed_official 27:4206883f4cb7 67 // turn on power for USB
mbed_official 27:4206883f4cb7 68 LPC_SC->PCONP |= (1UL<<31);
mbed_official 27:4206883f4cb7 69
mbed_official 27:4206883f4cb7 70 // Enable USB host clock, port selection and AHB clock
mbed_official 27:4206883f4cb7 71 LPC_USB->USBClkCtrl |= CLOCK_MASK;
mbed_official 27:4206883f4cb7 72
mbed_official 27:4206883f4cb7 73 // Wait for clocks to become available
mbed_official 27:4206883f4cb7 74 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK);
mbed_official 27:4206883f4cb7 75
mbed_official 27:4206883f4cb7 76 // it seems the bits[0:1] mean the following
mbed_official 27:4206883f4cb7 77 // 0: U1=device, U2=host
mbed_official 27:4206883f4cb7 78 // 1: U1=host, U2=host
mbed_official 27:4206883f4cb7 79 // 2: reserved
mbed_official 27:4206883f4cb7 80 // 3: U1=host, U2=device
mbed_official 27:4206883f4cb7 81 // NB: this register is only available if OTG clock (aka "port select") is enabled!!
mbed_official 27:4206883f4cb7 82 // since we don't care about port 2, set just bit 0 to 1 (U1=host)
mbed_official 27:4206883f4cb7 83 LPC_USB->OTGStCtrl |= 1;
mbed_official 27:4206883f4cb7 84
mbed_official 27:4206883f4cb7 85 // now that we've configured the ports, we can turn off the portsel clock
mbed_official 27:4206883f4cb7 86 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN;
mbed_official 27:4206883f4cb7 87
mbed_official 27:4206883f4cb7 88 // configure USB D+/D- pins
mbed_official 27:4206883f4cb7 89 // P0[29] = USB_D+, 01
mbed_official 27:4206883f4cb7 90 // P0[30] = USB_D-, 01
mbed_official 27:4206883f4cb7 91 LPC_PINCON->PINSEL1 &= ~((3<<26) | (3<<28));
mbed_official 27:4206883f4cb7 92 LPC_PINCON->PINSEL1 |= ((1<<26) | (1<<28));
mbed_official 27:4206883f4cb7 93
mbed_official 27:4206883f4cb7 94 LPC_USB->HcControl = 0; // HARDWARE RESET
mbed_official 27:4206883f4cb7 95 LPC_USB->HcControlHeadED = 0; // Initialize Control list head to Zero
mbed_official 27:4206883f4cb7 96 LPC_USB->HcBulkHeadED = 0; // Initialize Bulk list head to Zero
mbed_official 27:4206883f4cb7 97
mbed_official 27:4206883f4cb7 98 // Wait 100 ms before apply reset
mbed_official 27:4206883f4cb7 99 wait_ms(100);
mbed_official 27:4206883f4cb7 100
mbed_official 27:4206883f4cb7 101 // software reset
mbed_official 27:4206883f4cb7 102 LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR;
mbed_official 27:4206883f4cb7 103
mbed_official 27:4206883f4cb7 104 // Write Fm Interval and Largest Data Packet Counter
mbed_official 27:4206883f4cb7 105 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL;
mbed_official 27:4206883f4cb7 106 LPC_USB->HcPeriodicStart = FI * 90 / 100;
mbed_official 27:4206883f4cb7 107
mbed_official 27:4206883f4cb7 108 // Put HC in operational state
mbed_official 27:4206883f4cb7 109 LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) | OR_CONTROL_HC_OPER;
mbed_official 27:4206883f4cb7 110 // Set Global Power
mbed_official 27:4206883f4cb7 111 LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC;
mbed_official 27:4206883f4cb7 112
mbed_official 27:4206883f4cb7 113 LPC_USB->HcHCCA = (uint32_t)(usb_hcca);
mbed_official 27:4206883f4cb7 114
mbed_official 27:4206883f4cb7 115 // Clear Interrrupt Status
mbed_official 27:4206883f4cb7 116 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus;
mbed_official 27:4206883f4cb7 117
mbed_official 27:4206883f4cb7 118 LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE | OR_INTR_ENABLE_WDH | OR_INTR_ENABLE_RHSC;
mbed_official 27:4206883f4cb7 119
mbed_official 27:4206883f4cb7 120 // Enable the USB Interrupt
mbed_official 27:4206883f4cb7 121 NVIC_SetVector(USB_IRQn, (uint32_t)(_usbisr));
mbed_official 27:4206883f4cb7 122 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC;
mbed_official 27:4206883f4cb7 123 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
mbed_official 27:4206883f4cb7 124
mbed_official 27:4206883f4cb7 125 NVIC_EnableIRQ(USB_IRQn);
mbed_official 27:4206883f4cb7 126
mbed_official 27:4206883f4cb7 127 // Check for any connected devices
mbed_official 27:4206883f4cb7 128 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) {
mbed_official 27:4206883f4cb7 129 //Device connected
mbed_official 27:4206883f4cb7 130 wait_ms(150);
mbed_official 27:4206883f4cb7 131 USB_DBG("Device connected (%08x)\n\r", LPC_USB->HcRhPortStatus1);
mbed_official 27:4206883f4cb7 132 deviceConnected(0, 1, LPC_USB->HcRhPortStatus1 & OR_RH_PORT_LSDA);
mbed_official 27:4206883f4cb7 133 }
mbed_official 27:4206883f4cb7 134 }
mbed_official 27:4206883f4cb7 135
mbed_official 27:4206883f4cb7 136 uint32_t USBHALHost::controlHeadED() {
mbed_official 27:4206883f4cb7 137 return LPC_USB->HcControlHeadED;
mbed_official 27:4206883f4cb7 138 }
mbed_official 27:4206883f4cb7 139
mbed_official 27:4206883f4cb7 140 uint32_t USBHALHost::bulkHeadED() {
mbed_official 27:4206883f4cb7 141 return LPC_USB->HcBulkHeadED;
mbed_official 27:4206883f4cb7 142 }
mbed_official 27:4206883f4cb7 143
mbed_official 27:4206883f4cb7 144 uint32_t USBHALHost::interruptHeadED() {
mbed_official 27:4206883f4cb7 145 return usb_hcca->IntTable[0];
mbed_official 27:4206883f4cb7 146 }
mbed_official 27:4206883f4cb7 147
mbed_official 27:4206883f4cb7 148 void USBHALHost::updateBulkHeadED(uint32_t addr) {
mbed_official 27:4206883f4cb7 149 LPC_USB->HcBulkHeadED = addr;
mbed_official 27:4206883f4cb7 150 }
mbed_official 27:4206883f4cb7 151
mbed_official 27:4206883f4cb7 152
mbed_official 27:4206883f4cb7 153 void USBHALHost::updateControlHeadED(uint32_t addr) {
mbed_official 27:4206883f4cb7 154 LPC_USB->HcControlHeadED = addr;
mbed_official 27:4206883f4cb7 155 }
mbed_official 27:4206883f4cb7 156
mbed_official 27:4206883f4cb7 157 void USBHALHost::updateInterruptHeadED(uint32_t addr) {
mbed_official 27:4206883f4cb7 158 usb_hcca->IntTable[0] = addr;
mbed_official 27:4206883f4cb7 159 }
mbed_official 27:4206883f4cb7 160
mbed_official 27:4206883f4cb7 161
mbed_official 27:4206883f4cb7 162 void USBHALHost::enableList(ENDPOINT_TYPE type) {
mbed_official 27:4206883f4cb7 163 switch(type) {
mbed_official 27:4206883f4cb7 164 case CONTROL_ENDPOINT:
mbed_official 27:4206883f4cb7 165 LPC_USB->HcCommandStatus = OR_CMD_STATUS_CLF;
mbed_official 27:4206883f4cb7 166 LPC_USB->HcControl |= OR_CONTROL_CLE;
mbed_official 27:4206883f4cb7 167 break;
mbed_official 27:4206883f4cb7 168 case ISOCHRONOUS_ENDPOINT:
mbed_official 27:4206883f4cb7 169 break;
mbed_official 27:4206883f4cb7 170 case BULK_ENDPOINT:
mbed_official 27:4206883f4cb7 171 LPC_USB->HcCommandStatus = OR_CMD_STATUS_BLF;
mbed_official 27:4206883f4cb7 172 LPC_USB->HcControl |= OR_CONTROL_BLE;
mbed_official 27:4206883f4cb7 173 break;
mbed_official 27:4206883f4cb7 174 case INTERRUPT_ENDPOINT:
mbed_official 27:4206883f4cb7 175 LPC_USB->HcControl |= OR_CONTROL_PLE;
mbed_official 27:4206883f4cb7 176 break;
mbed_official 27:4206883f4cb7 177 }
mbed_official 27:4206883f4cb7 178 }
mbed_official 27:4206883f4cb7 179
mbed_official 27:4206883f4cb7 180
mbed_official 27:4206883f4cb7 181 bool USBHALHost::disableList(ENDPOINT_TYPE type) {
mbed_official 27:4206883f4cb7 182 switch(type) {
mbed_official 27:4206883f4cb7 183 case CONTROL_ENDPOINT:
mbed_official 27:4206883f4cb7 184 if(LPC_USB->HcControl & OR_CONTROL_CLE) {
mbed_official 27:4206883f4cb7 185 LPC_USB->HcControl &= ~OR_CONTROL_CLE;
mbed_official 27:4206883f4cb7 186 return true;
mbed_official 27:4206883f4cb7 187 }
mbed_official 27:4206883f4cb7 188 return false;
mbed_official 27:4206883f4cb7 189 case ISOCHRONOUS_ENDPOINT:
mbed_official 27:4206883f4cb7 190 return false;
mbed_official 27:4206883f4cb7 191 case BULK_ENDPOINT:
mbed_official 27:4206883f4cb7 192 if(LPC_USB->HcControl & OR_CONTROL_BLE){
mbed_official 27:4206883f4cb7 193 LPC_USB->HcControl &= ~OR_CONTROL_BLE;
mbed_official 27:4206883f4cb7 194 return true;
mbed_official 27:4206883f4cb7 195 }
mbed_official 27:4206883f4cb7 196 return false;
mbed_official 27:4206883f4cb7 197 case INTERRUPT_ENDPOINT:
mbed_official 27:4206883f4cb7 198 if(LPC_USB->HcControl & OR_CONTROL_PLE) {
mbed_official 27:4206883f4cb7 199 LPC_USB->HcControl &= ~OR_CONTROL_PLE;
mbed_official 27:4206883f4cb7 200 return true;
mbed_official 27:4206883f4cb7 201 }
mbed_official 27:4206883f4cb7 202 return false;
mbed_official 27:4206883f4cb7 203 }
mbed_official 27:4206883f4cb7 204 return false;
mbed_official 27:4206883f4cb7 205 }
mbed_official 27:4206883f4cb7 206
mbed_official 27:4206883f4cb7 207
mbed_official 27:4206883f4cb7 208 void USBHALHost::memInit() {
mbed_official 27:4206883f4cb7 209 usb_hcca = (volatile HCCA *)usb_buf;
mbed_official 27:4206883f4cb7 210 usb_edBuf = usb_buf + HCCA_SIZE;
mbed_official 27:4206883f4cb7 211 usb_tdBuf = usb_buf + HCCA_SIZE + (MAX_ENDPOINT*ED_SIZE);
mbed_official 27:4206883f4cb7 212 }
mbed_official 27:4206883f4cb7 213
mbed_official 27:4206883f4cb7 214 volatile uint8_t * USBHALHost::getED() {
mbed_official 27:4206883f4cb7 215 for (int i = 0; i < MAX_ENDPOINT; i++) {
mbed_official 27:4206883f4cb7 216 if ( !edBufAlloc[i] ) {
mbed_official 27:4206883f4cb7 217 edBufAlloc[i] = true;
mbed_official 27:4206883f4cb7 218 return (volatile uint8_t *)(usb_edBuf + i*ED_SIZE);
mbed_official 27:4206883f4cb7 219 }
mbed_official 27:4206883f4cb7 220 }
mbed_official 27:4206883f4cb7 221 perror("Could not allocate ED\r\n");
mbed_official 27:4206883f4cb7 222 return NULL; //Could not alloc ED
mbed_official 27:4206883f4cb7 223 }
mbed_official 27:4206883f4cb7 224
mbed_official 27:4206883f4cb7 225 volatile uint8_t * USBHALHost::getTD() {
mbed_official 27:4206883f4cb7 226 int i;
mbed_official 27:4206883f4cb7 227 for (i = 0; i < MAX_TD; i++) {
mbed_official 27:4206883f4cb7 228 if ( !tdBufAlloc[i] ) {
mbed_official 27:4206883f4cb7 229 tdBufAlloc[i] = true;
mbed_official 27:4206883f4cb7 230 return (volatile uint8_t *)(usb_tdBuf + i*TD_SIZE);
mbed_official 27:4206883f4cb7 231 }
mbed_official 27:4206883f4cb7 232 }
mbed_official 27:4206883f4cb7 233 perror("Could not allocate TD\r\n");
mbed_official 27:4206883f4cb7 234 return NULL; //Could not alloc TD
mbed_official 27:4206883f4cb7 235 }
mbed_official 27:4206883f4cb7 236
mbed_official 27:4206883f4cb7 237
mbed_official 27:4206883f4cb7 238 void USBHALHost::freeED(volatile uint8_t * ed) {
mbed_official 27:4206883f4cb7 239 int i;
mbed_official 27:4206883f4cb7 240 i = (ed - usb_edBuf) / ED_SIZE;
mbed_official 27:4206883f4cb7 241 edBufAlloc[i] = false;
mbed_official 27:4206883f4cb7 242 }
mbed_official 27:4206883f4cb7 243
mbed_official 27:4206883f4cb7 244 void USBHALHost::freeTD(volatile uint8_t * td) {
mbed_official 27:4206883f4cb7 245 int i;
mbed_official 27:4206883f4cb7 246 i = (td - usb_tdBuf) / TD_SIZE;
mbed_official 27:4206883f4cb7 247 tdBufAlloc[i] = false;
mbed_official 27:4206883f4cb7 248 }
mbed_official 27:4206883f4cb7 249
mbed_official 27:4206883f4cb7 250
mbed_official 27:4206883f4cb7 251 void USBHALHost::resetRootHub() {
mbed_official 27:4206883f4cb7 252 // Initiate port reset
mbed_official 27:4206883f4cb7 253 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS;
mbed_official 27:4206883f4cb7 254
mbed_official 27:4206883f4cb7 255 while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS);
mbed_official 27:4206883f4cb7 256
mbed_official 27:4206883f4cb7 257 // ...and clear port reset signal
mbed_official 27:4206883f4cb7 258 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
mbed_official 27:4206883f4cb7 259 }
mbed_official 27:4206883f4cb7 260
mbed_official 27:4206883f4cb7 261
mbed_official 27:4206883f4cb7 262 void USBHALHost::_usbisr(void) {
mbed_official 27:4206883f4cb7 263 if (instHost) {
mbed_official 27:4206883f4cb7 264 instHost->UsbIrqhandler();
mbed_official 27:4206883f4cb7 265 }
mbed_official 27:4206883f4cb7 266 }
mbed_official 27:4206883f4cb7 267
mbed_official 27:4206883f4cb7 268 void USBHALHost::UsbIrqhandler() {
mbed_official 27:4206883f4cb7 269 if( LPC_USB->HcInterruptStatus & LPC_USB->HcInterruptEnable ) //Is there something to actually process?
mbed_official 27:4206883f4cb7 270 {
mbed_official 27:4206883f4cb7 271
mbed_official 27:4206883f4cb7 272 uint32_t int_status = LPC_USB->HcInterruptStatus & LPC_USB->HcInterruptEnable;
mbed_official 27:4206883f4cb7 273
mbed_official 27:4206883f4cb7 274 // Root hub status change interrupt
mbed_official 27:4206883f4cb7 275 if (int_status & OR_INTR_STATUS_RHSC) {
mbed_official 27:4206883f4cb7 276 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) {
mbed_official 27:4206883f4cb7 277 if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) {
mbed_official 27:4206883f4cb7 278 // When DRWE is on, Connect Status Change
mbed_official 27:4206883f4cb7 279 // means a remote wakeup event.
mbed_official 27:4206883f4cb7 280 } else {
mbed_official 27:4206883f4cb7 281
mbed_official 27:4206883f4cb7 282 //Root device connected
mbed_official 27:4206883f4cb7 283 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) {
mbed_official 27:4206883f4cb7 284
mbed_official 27:4206883f4cb7 285 // wait 150ms to avoid bounce
mbed_official 27:4206883f4cb7 286 wait_ms(150);
mbed_official 27:4206883f4cb7 287
mbed_official 27:4206883f4cb7 288 //Hub 0 (root hub), Port 1 (count starts at 1), Low or High speed
mbed_official 27:4206883f4cb7 289 deviceConnected(0, 1, LPC_USB->HcRhPortStatus1 & OR_RH_PORT_LSDA);
mbed_official 27:4206883f4cb7 290 }
mbed_official 27:4206883f4cb7 291
mbed_official 27:4206883f4cb7 292 //Root device disconnected
mbed_official 27:4206883f4cb7 293 else {
mbed_official 27:4206883f4cb7 294
mbed_official 27:4206883f4cb7 295 if (!(int_status & OR_INTR_STATUS_WDH)) {
mbed_official 27:4206883f4cb7 296 usb_hcca->DoneHead = 0;
mbed_official 27:4206883f4cb7 297 }
mbed_official 27:4206883f4cb7 298
mbed_official 27:4206883f4cb7 299 // wait 200ms to avoid bounce
mbed_official 27:4206883f4cb7 300 wait_ms(200);
mbed_official 27:4206883f4cb7 301
mbed_official 27:4206883f4cb7 302 deviceDisconnected(0, 1, NULL, usb_hcca->DoneHead & 0xFFFFFFFE);
mbed_official 27:4206883f4cb7 303
mbed_official 27:4206883f4cb7 304 if (int_status & OR_INTR_STATUS_WDH) {
mbed_official 27:4206883f4cb7 305 usb_hcca->DoneHead = 0;
mbed_official 27:4206883f4cb7 306 LPC_USB->HcInterruptStatus = OR_INTR_STATUS_WDH;
mbed_official 27:4206883f4cb7 307 }
mbed_official 27:4206883f4cb7 308 }
mbed_official 27:4206883f4cb7 309 }
mbed_official 27:4206883f4cb7 310 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC;
mbed_official 27:4206883f4cb7 311 }
mbed_official 27:4206883f4cb7 312 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) {
mbed_official 27:4206883f4cb7 313 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
mbed_official 27:4206883f4cb7 314 }
mbed_official 27:4206883f4cb7 315 LPC_USB->HcInterruptStatus = OR_INTR_STATUS_RHSC;
mbed_official 27:4206883f4cb7 316 }
mbed_official 27:4206883f4cb7 317
mbed_official 27:4206883f4cb7 318 // Writeback Done Head interrupt
mbed_official 27:4206883f4cb7 319 if (int_status & OR_INTR_STATUS_WDH) {
mbed_official 27:4206883f4cb7 320 transferCompleted(usb_hcca->DoneHead & 0xFFFFFFFE);
mbed_official 27:4206883f4cb7 321 LPC_USB->HcInterruptStatus = OR_INTR_STATUS_WDH;
mbed_official 27:4206883f4cb7 322 }
mbed_official 27:4206883f4cb7 323 }
mbed_official 27:4206883f4cb7 324 }
mbed_official 27:4206883f4cb7 325 #endif