Tick Tock / Mbed 2 deprecated CANary_9341_test

test fork

Dependencies:   SPI_TFTx2 SPI_TFTx2_ILI9341 TFT_fonts TOUCH_TFTx2 mbed

Fork of CANary_9341 by Tick Tock

USBHostLite/usbhost_lpc17xx.cpp@137:70853cf5a30f, 2013-07-28 (annotated)

Committer:
TickTock
Date:
Sun Jul 28 05:32:17 2013 +0000
Revision:
137:70853cf5a30f
Parent:
USBHostLite/usbhost_lpc17xx.c@109:3e6f0e8fca0d 
Added update if screen touched on power; Fixed hang on immediate USB access

Who changed what in which revision?

UserRevisionLine numberNew contents of line
TickTock 109:3e6f0e8fca0d 1 /*
TickTock 109:3e6f0e8fca0d 2 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 3 * NXP USB Host Stack
TickTock 109:3e6f0e8fca0d 4 *
TickTock 109:3e6f0e8fca0d 5 * (c) Copyright 2008, NXP SemiConductors
TickTock 109:3e6f0e8fca0d 6 * (c) Copyright 2008, OnChip Technologies LLC
TickTock 109:3e6f0e8fca0d 7 * All Rights Reserved
TickTock 109:3e6f0e8fca0d 8 *
TickTock 109:3e6f0e8fca0d 9 * www.nxp.com
TickTock 109:3e6f0e8fca0d 10 * www.onchiptech.com
TickTock 109:3e6f0e8fca0d 11 *
TickTock 109:3e6f0e8fca0d 12 * File : usbhost_lpc17xx.c
TickTock 109:3e6f0e8fca0d 13 * Programmer(s) : Ravikanth.P
TickTock 109:3e6f0e8fca0d 14 * Version :
TickTock 109:3e6f0e8fca0d 15 *
TickTock 109:3e6f0e8fca0d 16 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 17 */
TickTock 109:3e6f0e8fca0d 18
TickTock 109:3e6f0e8fca0d 19 /*
TickTock 109:3e6f0e8fca0d 20 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 21 * INCLUDE HEADER FILES
TickTock 109:3e6f0e8fca0d 22 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 23 */
TickTock 109:3e6f0e8fca0d 24
TickTock 109:3e6f0e8fca0d 25 #include "usbhost_lpc17xx.h"
TickTock 109:3e6f0e8fca0d 26
TickTock 109:3e6f0e8fca0d 27 /*
TickTock 109:3e6f0e8fca0d 28 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 29 * GLOBAL VARIABLES
TickTock 109:3e6f0e8fca0d 30 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 31 */
TickTock 109:3e6f0e8fca0d 32 int gUSBConnected;
TickTock 109:3e6f0e8fca0d 33
TickTock 109:3e6f0e8fca0d 34 volatile USB_INT32U HOST_RhscIntr = 0; /* Root Hub Status Change interrupt */
TickTock 109:3e6f0e8fca0d 35 volatile USB_INT32U HOST_WdhIntr = 0; /* Semaphore to wait until the TD is submitted */
TickTock 109:3e6f0e8fca0d 36 volatile USB_INT08U HOST_TDControlStatus = 0;
TickTock 109:3e6f0e8fca0d 37 volatile HCED *EDCtrl; /* Control endpoint descriptor structure */
TickTock 109:3e6f0e8fca0d 38 volatile HCED *EDBulkIn; /* BulkIn endpoint descriptor structure */
TickTock 109:3e6f0e8fca0d 39 volatile HCED *EDBulkOut; /* BulkOut endpoint descriptor structure */
TickTock 109:3e6f0e8fca0d 40 volatile HCTD *TDHead; /* Head transfer descriptor structure */
TickTock 109:3e6f0e8fca0d 41 volatile HCTD *TDTail; /* Tail transfer descriptor structure */
TickTock 109:3e6f0e8fca0d 42 volatile HCCA *Hcca; /* Host Controller Communications Area structure */
TickTock 109:3e6f0e8fca0d 43 USB_INT16U *TDBufNonVol; /* Identical to TDBuffer just to reduce compiler warnings */
TickTock 109:3e6f0e8fca0d 44 volatile USB_INT08U *TDBuffer; /* Current Buffer Pointer of transfer descriptor */
TickTock 109:3e6f0e8fca0d 45
TickTock 109:3e6f0e8fca0d 46 // USB host structures
TickTock 109:3e6f0e8fca0d 47 // AHB SRAM block 1
TickTock 109:3e6f0e8fca0d 48 #define HOSTBASEADDR 0x2007C000
TickTock 109:3e6f0e8fca0d 49 // reserve memory for the linker
TickTock 109:3e6f0e8fca0d 50 static USB_INT08U HostBuf[0x200] __attribute__((at(HOSTBASEADDR)));
TickTock 109:3e6f0e8fca0d 51 /*
TickTock 109:3e6f0e8fca0d 52 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 53 * DELAY IN MILLI SECONDS
TickTock 109:3e6f0e8fca0d 54 *
TickTock 109:3e6f0e8fca0d 55 * Description: This function provides a delay in milli seconds
TickTock 109:3e6f0e8fca0d 56 *
TickTock 109:3e6f0e8fca0d 57 * Arguments : delay The delay required
TickTock 109:3e6f0e8fca0d 58 *
TickTock 109:3e6f0e8fca0d 59 * Returns : None
TickTock 109:3e6f0e8fca0d 60 *
TickTock 109:3e6f0e8fca0d 61 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 62 */
TickTock 109:3e6f0e8fca0d 63
TickTock 109:3e6f0e8fca0d 64 void Host_DelayMS (USB_INT32U delay)
TickTock 109:3e6f0e8fca0d 65 {
TickTock 109:3e6f0e8fca0d 66 volatile USB_INT32U i;
TickTock 109:3e6f0e8fca0d 67
TickTock 109:3e6f0e8fca0d 68
TickTock 109:3e6f0e8fca0d 69 for (i = 0; i < delay; i++) {
TickTock 109:3e6f0e8fca0d 70 Host_DelayUS(1000);
TickTock 109:3e6f0e8fca0d 71 }
TickTock 109:3e6f0e8fca0d 72 }
TickTock 109:3e6f0e8fca0d 73
TickTock 109:3e6f0e8fca0d 74 /*
TickTock 109:3e6f0e8fca0d 75 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 76 * DELAY IN MICRO SECONDS
TickTock 109:3e6f0e8fca0d 77 *
TickTock 109:3e6f0e8fca0d 78 * Description: This function provides a delay in micro seconds
TickTock 109:3e6f0e8fca0d 79 *
TickTock 109:3e6f0e8fca0d 80 * Arguments : delay The delay required
TickTock 109:3e6f0e8fca0d 81 *
TickTock 109:3e6f0e8fca0d 82 * Returns : None
TickTock 109:3e6f0e8fca0d 83 *
TickTock 109:3e6f0e8fca0d 84 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 85 */
TickTock 109:3e6f0e8fca0d 86
TickTock 109:3e6f0e8fca0d 87 void Host_DelayUS (USB_INT32U delay)
TickTock 109:3e6f0e8fca0d 88 {
TickTock 109:3e6f0e8fca0d 89 volatile USB_INT32U i;
TickTock 109:3e6f0e8fca0d 90
TickTock 109:3e6f0e8fca0d 91
TickTock 109:3e6f0e8fca0d 92 for (i = 0; i < (4 * delay); i++) { /* This logic was tested. It gives app. 1 micro sec delay */
TickTock 109:3e6f0e8fca0d 93 ;
TickTock 109:3e6f0e8fca0d 94 }
TickTock 109:3e6f0e8fca0d 95 }
TickTock 109:3e6f0e8fca0d 96
TickTock 109:3e6f0e8fca0d 97 // bits of the USB/OTG clock control register
TickTock 109:3e6f0e8fca0d 98 #define HOST_CLK_EN (1<<0)
TickTock 109:3e6f0e8fca0d 99 #define DEV_CLK_EN (1<<1)
TickTock 109:3e6f0e8fca0d 100 #define PORTSEL_CLK_EN (1<<3)
TickTock 109:3e6f0e8fca0d 101 #define AHB_CLK_EN (1<<4)
TickTock 109:3e6f0e8fca0d 102
TickTock 109:3e6f0e8fca0d 103 // bits of the USB/OTG clock status register
TickTock 109:3e6f0e8fca0d 104 #define HOST_CLK_ON (1<<0)
TickTock 109:3e6f0e8fca0d 105 #define DEV_CLK_ON (1<<1)
TickTock 109:3e6f0e8fca0d 106 #define PORTSEL_CLK_ON (1<<3)
TickTock 109:3e6f0e8fca0d 107 #define AHB_CLK_ON (1<<4)
TickTock 109:3e6f0e8fca0d 108
TickTock 109:3e6f0e8fca0d 109 // we need host clock, OTG/portsel clock and AHB clock
TickTock 109:3e6f0e8fca0d 110 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
TickTock 109:3e6f0e8fca0d 111
TickTock 109:3e6f0e8fca0d 112 /*
TickTock 109:3e6f0e8fca0d 113 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 114 * INITIALIZE THE HOST CONTROLLER
TickTock 109:3e6f0e8fca0d 115 *
TickTock 109:3e6f0e8fca0d 116 * Description: This function initializes lpc17xx host controller
TickTock 109:3e6f0e8fca0d 117 *
TickTock 109:3e6f0e8fca0d 118 * Arguments : None
TickTock 109:3e6f0e8fca0d 119 *
TickTock 109:3e6f0e8fca0d 120 * Returns :
TickTock 109:3e6f0e8fca0d 121 *
TickTock 109:3e6f0e8fca0d 122 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 123 */
TickTock 109:3e6f0e8fca0d 124 void Host_Init (void)
TickTock 109:3e6f0e8fca0d 125 {
TickTock 109:3e6f0e8fca0d 126 PRINT_Log("In Host_Init\n");
TickTock 109:3e6f0e8fca0d 127 NVIC_DisableIRQ(USB_IRQn); /* Disable the USB interrupt source */
TickTock 109:3e6f0e8fca0d 128
TickTock 109:3e6f0e8fca0d 129 // turn on power for USB
TickTock 109:3e6f0e8fca0d 130 LPC_SC->PCONP |= (1UL<<31);
TickTock 109:3e6f0e8fca0d 131 // Enable USB host clock, port selection and AHB clock
TickTock 109:3e6f0e8fca0d 132 LPC_USB->USBClkCtrl |= CLOCK_MASK;
TickTock 109:3e6f0e8fca0d 133 // Wait for clocks to become available
TickTock 109:3e6f0e8fca0d 134 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
TickTock 109:3e6f0e8fca0d 135 ;
TickTock 109:3e6f0e8fca0d 136
TickTock 109:3e6f0e8fca0d 137 // it seems the bits[0:1] mean the following
TickTock 109:3e6f0e8fca0d 138 // 0: U1=device, U2=host
TickTock 109:3e6f0e8fca0d 139 // 1: U1=host, U2=host
TickTock 109:3e6f0e8fca0d 140 // 2: reserved
TickTock 109:3e6f0e8fca0d 141 // 3: U1=host, U2=device
TickTock 109:3e6f0e8fca0d 142 // NB: this register is only available if OTG clock (aka "port select") is enabled!!
TickTock 109:3e6f0e8fca0d 143 // since we don't care about port 2, set just bit 0 to 1 (U1=host)
TickTock 109:3e6f0e8fca0d 144 LPC_USB->OTGStCtrl |= 1;
TickTock 109:3e6f0e8fca0d 145
TickTock 109:3e6f0e8fca0d 146 // now that we've configured the ports, we can turn off the portsel clock
TickTock 109:3e6f0e8fca0d 147 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN;
TickTock 109:3e6f0e8fca0d 148
TickTock 109:3e6f0e8fca0d 149 // power pins are not connected on mbed, so we can skip them
TickTock 109:3e6f0e8fca0d 150 /* P1[18] = USB_UP_LED, 01 */
TickTock 109:3e6f0e8fca0d 151 /* P1[19] = /USB_PPWR, 10 */
TickTock 109:3e6f0e8fca0d 152 /* P1[22] = USB_PWRD, 10 */
TickTock 109:3e6f0e8fca0d 153 /* P1[27] = /USB_OVRCR, 10 */
TickTock 109:3e6f0e8fca0d 154 /*LPC_PINCON->PINSEL3 &= ~((3<<4) | (3<<6) | (3<<12) | (3<<22));
TickTock 109:3e6f0e8fca0d 155 LPC_PINCON->PINSEL3 |= ((1<<4)|(2<<6) | (2<<12) | (2<<22)); // 0x00802080
TickTock 109:3e6f0e8fca0d 156 */
TickTock 109:3e6f0e8fca0d 157
TickTock 109:3e6f0e8fca0d 158 // configure USB D+/D- pins
TickTock 109:3e6f0e8fca0d 159 /* P0[29] = USB_D+, 01 */
TickTock 109:3e6f0e8fca0d 160 /* P0[30] = USB_D-, 01 */
TickTock 109:3e6f0e8fca0d 161 LPC_PINCON->PINSEL1 &= ~((3<<26) | (3<<28));
TickTock 109:3e6f0e8fca0d 162 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // 0x14000000
TickTock 109:3e6f0e8fca0d 163
TickTock 109:3e6f0e8fca0d 164 PRINT_Log("Initializing Host Stack\n");
TickTock 109:3e6f0e8fca0d 165
TickTock 109:3e6f0e8fca0d 166 Hcca = (volatile HCCA *)(HostBuf+0x000);
TickTock 109:3e6f0e8fca0d 167 TDHead = (volatile HCTD *)(HostBuf+0x100);
TickTock 109:3e6f0e8fca0d 168 TDTail = (volatile HCTD *)(HostBuf+0x110);
TickTock 109:3e6f0e8fca0d 169 EDCtrl = (volatile HCED *)(HostBuf+0x120);
TickTock 109:3e6f0e8fca0d 170 EDBulkIn = (volatile HCED *)(HostBuf+0x130);
TickTock 109:3e6f0e8fca0d 171 EDBulkOut = (volatile HCED *)(HostBuf+0x140);
TickTock 109:3e6f0e8fca0d 172 TDBuffer = (volatile USB_INT08U *)(HostBuf+0x150);
TickTock 109:3e6f0e8fca0d 173
TickTock 109:3e6f0e8fca0d 174 /* Initialize all the TDs, EDs and HCCA to 0 */
TickTock 109:3e6f0e8fca0d 175 Host_EDInit(EDCtrl);
TickTock 109:3e6f0e8fca0d 176 Host_EDInit(EDBulkIn);
TickTock 109:3e6f0e8fca0d 177 Host_EDInit(EDBulkOut);
TickTock 109:3e6f0e8fca0d 178 Host_TDInit(TDHead);
TickTock 109:3e6f0e8fca0d 179 Host_TDInit(TDTail);
TickTock 109:3e6f0e8fca0d 180 Host_HCCAInit(Hcca);
TickTock 109:3e6f0e8fca0d 181
TickTock 109:3e6f0e8fca0d 182 Host_DelayMS(50); /* Wait 50 ms before apply reset */
TickTock 109:3e6f0e8fca0d 183 LPC_USB->HcControl = 0; /* HARDWARE RESET */
TickTock 109:3e6f0e8fca0d 184 LPC_USB->HcControlHeadED = 0; /* Initialize Control list head to Zero */
TickTock 109:3e6f0e8fca0d 185 LPC_USB->HcBulkHeadED = 0; /* Initialize Bulk list head to Zero */
TickTock 109:3e6f0e8fca0d 186
TickTock 109:3e6f0e8fca0d 187 /* SOFTWARE RESET */
TickTock 109:3e6f0e8fca0d 188 LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR;
TickTock 109:3e6f0e8fca0d 189 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; /* Write Fm Interval and Largest Data Packet Counter */
TickTock 109:3e6f0e8fca0d 190
TickTock 109:3e6f0e8fca0d 191 /* Put HC in operational state */
TickTock 109:3e6f0e8fca0d 192 LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) | OR_CONTROL_HC_OPER;
TickTock 109:3e6f0e8fca0d 193 LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC; /* Set Global Power */
TickTock 109:3e6f0e8fca0d 194
TickTock 109:3e6f0e8fca0d 195 LPC_USB->HcHCCA = (USB_INT32U)Hcca;
TickTock 109:3e6f0e8fca0d 196 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus; /* Clear Interrrupt Status */
TickTock 109:3e6f0e8fca0d 197
TickTock 109:3e6f0e8fca0d 198
TickTock 109:3e6f0e8fca0d 199 LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE |
TickTock 109:3e6f0e8fca0d 200 OR_INTR_ENABLE_WDH |
TickTock 109:3e6f0e8fca0d 201 OR_INTR_ENABLE_RHSC;
TickTock 109:3e6f0e8fca0d 202
TickTock 109:3e6f0e8fca0d 203 NVIC_SetPriority(USB_IRQn, 0); /* highest priority */
TickTock 109:3e6f0e8fca0d 204 /* Enable the USB Interrupt */
TickTock 109:3e6f0e8fca0d 205 NVIC_EnableIRQ(USB_IRQn);
TickTock 109:3e6f0e8fca0d 206 PRINT_Log("Host Initialized\n");
TickTock 109:3e6f0e8fca0d 207 }
TickTock 109:3e6f0e8fca0d 208
TickTock 109:3e6f0e8fca0d 209 /*
TickTock 109:3e6f0e8fca0d 210 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 211 * INTERRUPT SERVICE ROUTINE
TickTock 109:3e6f0e8fca0d 212 *
TickTock 109:3e6f0e8fca0d 213 * Description: This function services the interrupt caused by host controller
TickTock 109:3e6f0e8fca0d 214 *
TickTock 109:3e6f0e8fca0d 215 * Arguments : None
TickTock 109:3e6f0e8fca0d 216 *
TickTock 109:3e6f0e8fca0d 217 * Returns : None
TickTock 109:3e6f0e8fca0d 218 *
TickTock 109:3e6f0e8fca0d 219 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 220 */
TickTock 109:3e6f0e8fca0d 221
TickTock 109:3e6f0e8fca0d 222 void USB_IRQHandler (void) __irq
TickTock 109:3e6f0e8fca0d 223 {
TickTock 109:3e6f0e8fca0d 224 USB_INT32U int_status;
TickTock 109:3e6f0e8fca0d 225 USB_INT32U ie_status;
TickTock 109:3e6f0e8fca0d 226
TickTock 109:3e6f0e8fca0d 227 int_status = LPC_USB->HcInterruptStatus; /* Read Interrupt Status */
TickTock 109:3e6f0e8fca0d 228 ie_status = LPC_USB->HcInterruptEnable; /* Read Interrupt enable status */
TickTock 109:3e6f0e8fca0d 229
TickTock 109:3e6f0e8fca0d 230 if (!(int_status & ie_status)) {
TickTock 109:3e6f0e8fca0d 231 return;
TickTock 109:3e6f0e8fca0d 232 } else {
TickTock 109:3e6f0e8fca0d 233
TickTock 109:3e6f0e8fca0d 234 int_status = int_status & ie_status;
TickTock 109:3e6f0e8fca0d 235 if (int_status & OR_INTR_STATUS_RHSC) { /* Root hub status change interrupt */
TickTock 109:3e6f0e8fca0d 236 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) {
TickTock 109:3e6f0e8fca0d 237 if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) {
TickTock 109:3e6f0e8fca0d 238 /*
TickTock 109:3e6f0e8fca0d 239 * When DRWE is on, Connect Status Change
TickTock 109:3e6f0e8fca0d 240 * means a remote wakeup event.
TickTock 109:3e6f0e8fca0d 241 */
TickTock 109:3e6f0e8fca0d 242 HOST_RhscIntr = 1;// JUST SOMETHING FOR A BREAKPOINT
TickTock 109:3e6f0e8fca0d 243 }
TickTock 109:3e6f0e8fca0d 244 else {
TickTock 109:3e6f0e8fca0d 245 /*
TickTock 109:3e6f0e8fca0d 246 * When DRWE is off, Connect Status Change
TickTock 109:3e6f0e8fca0d 247 * is NOT a remote wakeup event
TickTock 109:3e6f0e8fca0d 248 */
TickTock 109:3e6f0e8fca0d 249 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) {
TickTock 109:3e6f0e8fca0d 250 if (!gUSBConnected) {
TickTock 109:3e6f0e8fca0d 251 HOST_TDControlStatus = 0;
TickTock 109:3e6f0e8fca0d 252 HOST_WdhIntr = 0;
TickTock 109:3e6f0e8fca0d 253 HOST_RhscIntr = 1;
TickTock 109:3e6f0e8fca0d 254 gUSBConnected = 1;
TickTock 109:3e6f0e8fca0d 255 }
TickTock 109:3e6f0e8fca0d 256 else
TickTock 109:3e6f0e8fca0d 257 PRINT_Log("Spurious status change (connected)?\n");
TickTock 109:3e6f0e8fca0d 258 } else {
TickTock 109:3e6f0e8fca0d 259 if (gUSBConnected) {
TickTock 109:3e6f0e8fca0d 260 LPC_USB->HcInterruptEnable = 0; // why do we get multiple disc. rupts???
TickTock 109:3e6f0e8fca0d 261 HOST_RhscIntr = 0;
TickTock 109:3e6f0e8fca0d 262 gUSBConnected = 0;
TickTock 109:3e6f0e8fca0d 263 }
TickTock 109:3e6f0e8fca0d 264 else
TickTock 109:3e6f0e8fca0d 265 PRINT_Log("Spurious status change (disconnected)?\n");
TickTock 109:3e6f0e8fca0d 266 }
TickTock 109:3e6f0e8fca0d 267 }
TickTock 109:3e6f0e8fca0d 268 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC;
TickTock 109:3e6f0e8fca0d 269 }
TickTock 109:3e6f0e8fca0d 270 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) {
TickTock 109:3e6f0e8fca0d 271 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
TickTock 109:3e6f0e8fca0d 272 }
TickTock 109:3e6f0e8fca0d 273 }
TickTock 109:3e6f0e8fca0d 274 if (int_status & OR_INTR_STATUS_WDH) { /* Writeback Done Head interrupt */
TickTock 109:3e6f0e8fca0d 275 HOST_WdhIntr = 1;
TickTock 109:3e6f0e8fca0d 276 HOST_TDControlStatus = (TDHead->Control >> 28) & 0xf;
TickTock 109:3e6f0e8fca0d 277 }
TickTock 109:3e6f0e8fca0d 278 LPC_USB->HcInterruptStatus = int_status; /* Clear interrupt status register */
TickTock 109:3e6f0e8fca0d 279 }
TickTock 109:3e6f0e8fca0d 280 return;
TickTock 109:3e6f0e8fca0d 281 }
TickTock 109:3e6f0e8fca0d 282
TickTock 109:3e6f0e8fca0d 283 /*
TickTock 109:3e6f0e8fca0d 284 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 285 * PROCESS TRANSFER DESCRIPTOR
TickTock 109:3e6f0e8fca0d 286 *
TickTock 109:3e6f0e8fca0d 287 * Description: This function processes the transfer descriptor
TickTock 109:3e6f0e8fca0d 288 *
TickTock 109:3e6f0e8fca0d 289 * Arguments : ed Endpoint descriptor that contains this transfer descriptor
TickTock 109:3e6f0e8fca0d 290 * token SETUP, IN, OUT
TickTock 109:3e6f0e8fca0d 291 * buffer Current Buffer Pointer of the transfer descriptor
TickTock 109:3e6f0e8fca0d 292 * buffer_len Length of the buffer
TickTock 109:3e6f0e8fca0d 293 *
TickTock 109:3e6f0e8fca0d 294 * Returns : OK if TD submission is successful
TickTock 109:3e6f0e8fca0d 295 * ERROR if TD submission fails
TickTock 109:3e6f0e8fca0d 296 *
TickTock 109:3e6f0e8fca0d 297 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 298 */
TickTock 109:3e6f0e8fca0d 299
TickTock 109:3e6f0e8fca0d 300 USB_INT32S Host_ProcessTD (volatile HCED *ed,
TickTock 109:3e6f0e8fca0d 301 volatile USB_INT32U token,
TickTock 109:3e6f0e8fca0d 302 volatile USB_INT08U *buffer,
TickTock 109:3e6f0e8fca0d 303 USB_INT32U buffer_len)
TickTock 109:3e6f0e8fca0d 304 {
TickTock 109:3e6f0e8fca0d 305 volatile USB_INT32U td_toggle;
TickTock 109:3e6f0e8fca0d 306
TickTock 109:3e6f0e8fca0d 307
TickTock 109:3e6f0e8fca0d 308 if (ed == EDCtrl) {
TickTock 109:3e6f0e8fca0d 309 if (token == TD_SETUP) {
TickTock 109:3e6f0e8fca0d 310 td_toggle = TD_TOGGLE_0;
TickTock 109:3e6f0e8fca0d 311 } else {
TickTock 109:3e6f0e8fca0d 312 td_toggle = TD_TOGGLE_1;
TickTock 109:3e6f0e8fca0d 313 }
TickTock 109:3e6f0e8fca0d 314 } else {
TickTock 109:3e6f0e8fca0d 315 td_toggle = 0;
TickTock 109:3e6f0e8fca0d 316 }
TickTock 109:3e6f0e8fca0d 317 TDHead->Control = (TD_ROUNDING |
TickTock 109:3e6f0e8fca0d 318 token |
TickTock 109:3e6f0e8fca0d 319 TD_DELAY_INT(0) |
TickTock 109:3e6f0e8fca0d 320 td_toggle |
TickTock 109:3e6f0e8fca0d 321 TD_CC);
TickTock 109:3e6f0e8fca0d 322 TDTail->Control = 0;
TickTock 109:3e6f0e8fca0d 323 TDHead->CurrBufPtr = (USB_INT32U) buffer;
TickTock 109:3e6f0e8fca0d 324 TDTail->CurrBufPtr = 0;
TickTock 109:3e6f0e8fca0d 325 TDHead->Next = (USB_INT32U) TDTail;
TickTock 109:3e6f0e8fca0d 326 TDTail->Next = 0;
TickTock 109:3e6f0e8fca0d 327 TDHead->BufEnd = (USB_INT32U)(buffer + (buffer_len - 1));
TickTock 109:3e6f0e8fca0d 328 TDTail->BufEnd = 0;
TickTock 109:3e6f0e8fca0d 329
TickTock 109:3e6f0e8fca0d 330 ed->HeadTd = (USB_INT32U)TDHead | ((ed->HeadTd) & 0x00000002);
TickTock 109:3e6f0e8fca0d 331 ed->TailTd = (USB_INT32U)TDTail;
TickTock 109:3e6f0e8fca0d 332 ed->Next = 0;
TickTock 109:3e6f0e8fca0d 333
TickTock 109:3e6f0e8fca0d 334 if (ed == EDCtrl) {
TickTock 109:3e6f0e8fca0d 335 LPC_USB->HcControlHeadED = (USB_INT32U)ed;
TickTock 109:3e6f0e8fca0d 336 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_CLF;
TickTock 109:3e6f0e8fca0d 337 LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_CLE;
TickTock 109:3e6f0e8fca0d 338 } else {
TickTock 109:3e6f0e8fca0d 339 LPC_USB->HcBulkHeadED = (USB_INT32U)ed;
TickTock 109:3e6f0e8fca0d 340 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_BLF;
TickTock 109:3e6f0e8fca0d 341 LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_BLE;
TickTock 109:3e6f0e8fca0d 342 }
TickTock 109:3e6f0e8fca0d 343
TickTock 109:3e6f0e8fca0d 344 Host_WDHWait();
TickTock 109:3e6f0e8fca0d 345
TickTock 109:3e6f0e8fca0d 346 // if (!(TDHead->Control & 0xF0000000)) {
TickTock 109:3e6f0e8fca0d 347 if (!HOST_TDControlStatus) {
TickTock 109:3e6f0e8fca0d 348 return (OK);
TickTock 109:3e6f0e8fca0d 349 } else {
TickTock 109:3e6f0e8fca0d 350 return (ERR_TD_FAIL);
TickTock 109:3e6f0e8fca0d 351 }
TickTock 109:3e6f0e8fca0d 352 }
TickTock 109:3e6f0e8fca0d 353
TickTock 109:3e6f0e8fca0d 354 /*
TickTock 109:3e6f0e8fca0d 355 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 356 * ENUMERATE THE DEVICE
TickTock 109:3e6f0e8fca0d 357 *
TickTock 109:3e6f0e8fca0d 358 * Description: This function is used to enumerate the device connected
TickTock 109:3e6f0e8fca0d 359 *
TickTock 109:3e6f0e8fca0d 360 * Arguments : None
TickTock 109:3e6f0e8fca0d 361 *
TickTock 109:3e6f0e8fca0d 362 * Returns : None
TickTock 109:3e6f0e8fca0d 363 *
TickTock 109:3e6f0e8fca0d 364 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 365 */
TickTock 109:3e6f0e8fca0d 366
TickTock 109:3e6f0e8fca0d 367 USB_INT32S Host_EnumDev (void)
TickTock 109:3e6f0e8fca0d 368 {
TickTock 109:3e6f0e8fca0d 369 USB_INT32S rc;
TickTock 109:3e6f0e8fca0d 370
TickTock 109:3e6f0e8fca0d 371 PRINT_Log("Connect a Mass Storage device\n");
TickTock 109:3e6f0e8fca0d 372 while (!HOST_RhscIntr)
TickTock 109:3e6f0e8fca0d 373 __WFI();
TickTock 109:3e6f0e8fca0d 374 Host_DelayMS(100); /* USB 2.0 spec says atleast 50ms delay beore port reset */
TickTock 109:3e6f0e8fca0d 375 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS; // Initiate port reset
TickTock 109:3e6f0e8fca0d 376 while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS)
TickTock 109:3e6f0e8fca0d 377 __WFI(); // Wait for port reset to complete...
TickTock 109:3e6f0e8fca0d 378 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; // ...and clear port reset signal
TickTock 109:3e6f0e8fca0d 379 Host_DelayMS(200); /* Wait for 100 MS after port reset */
TickTock 109:3e6f0e8fca0d 380
TickTock 109:3e6f0e8fca0d 381 EDCtrl->Control = 8 << 16; /* Put max pkt size = 8 */
TickTock 109:3e6f0e8fca0d 382 /* Read first 8 bytes of device desc */
TickTock 109:3e6f0e8fca0d 383 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_DEVICE, 0, TDBuffer, 8);
TickTock 109:3e6f0e8fca0d 384 if (rc != OK) {
TickTock 109:3e6f0e8fca0d 385 PRINT_Err(rc);
TickTock 109:3e6f0e8fca0d 386 return (rc);
TickTock 109:3e6f0e8fca0d 387 }
TickTock 109:3e6f0e8fca0d 388 EDCtrl->Control = TDBuffer[7] << 16; /* Get max pkt size of endpoint 0 */
TickTock 109:3e6f0e8fca0d 389 rc = HOST_SET_ADDRESS(1); /* Set the device address to 1 */
TickTock 109:3e6f0e8fca0d 390 if (rc != OK) {
TickTock 109:3e6f0e8fca0d 391 PRINT_Err(rc);
TickTock 109:3e6f0e8fca0d 392 return (rc);
TickTock 109:3e6f0e8fca0d 393 }
TickTock 109:3e6f0e8fca0d 394 Host_DelayMS(2);
TickTock 109:3e6f0e8fca0d 395 EDCtrl->Control = (EDCtrl->Control) | 1; /* Modify control pipe with address 1 */
TickTock 109:3e6f0e8fca0d 396 /* Get the configuration descriptor */
TickTock 109:3e6f0e8fca0d 397 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, 9);
TickTock 109:3e6f0e8fca0d 398 if (rc != OK) {
TickTock 109:3e6f0e8fca0d 399 PRINT_Err(rc);
TickTock 109:3e6f0e8fca0d 400 return (rc);
TickTock 109:3e6f0e8fca0d 401 }
TickTock 109:3e6f0e8fca0d 402 /* Get the first configuration data */
TickTock 109:3e6f0e8fca0d 403 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, ReadLE16U(&TDBuffer[2]));
TickTock 109:3e6f0e8fca0d 404 if (rc != OK) {
TickTock 109:3e6f0e8fca0d 405 PRINT_Err(rc);
TickTock 109:3e6f0e8fca0d 406 return (rc);
TickTock 109:3e6f0e8fca0d 407 }
TickTock 109:3e6f0e8fca0d 408 rc = MS_ParseConfiguration(); /* Parse the configuration */
TickTock 109:3e6f0e8fca0d 409 if (rc != OK) {
TickTock 109:3e6f0e8fca0d 410 PRINT_Err(rc);
TickTock 109:3e6f0e8fca0d 411 return (rc);
TickTock 109:3e6f0e8fca0d 412 }
TickTock 109:3e6f0e8fca0d 413 rc = USBH_SET_CONFIGURATION(1); /* Select device configuration 1 */
TickTock 109:3e6f0e8fca0d 414 if (rc != OK) {
TickTock 109:3e6f0e8fca0d 415 PRINT_Err(rc);
TickTock 109:3e6f0e8fca0d 416 }
TickTock 109:3e6f0e8fca0d 417 Host_DelayMS(100); /* Some devices may require this delay */
TickTock 109:3e6f0e8fca0d 418 return (rc);
TickTock 109:3e6f0e8fca0d 419 }
TickTock 109:3e6f0e8fca0d 420
TickTock 109:3e6f0e8fca0d 421 /*
TickTock 109:3e6f0e8fca0d 422 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 423 * RECEIVE THE CONTROL INFORMATION
TickTock 109:3e6f0e8fca0d 424 *
TickTock 109:3e6f0e8fca0d 425 * Description: This function is used to receive the control information
TickTock 109:3e6f0e8fca0d 426 *
TickTock 109:3e6f0e8fca0d 427 * Arguments : bm_request_type
TickTock 109:3e6f0e8fca0d 428 * b_request
TickTock 109:3e6f0e8fca0d 429 * w_value
TickTock 109:3e6f0e8fca0d 430 * w_index
TickTock 109:3e6f0e8fca0d 431 * w_length
TickTock 109:3e6f0e8fca0d 432 * buffer
TickTock 109:3e6f0e8fca0d 433 *
TickTock 109:3e6f0e8fca0d 434 * Returns : OK if Success
TickTock 109:3e6f0e8fca0d 435 * ERROR if Failed
TickTock 109:3e6f0e8fca0d 436 *
TickTock 109:3e6f0e8fca0d 437 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 438 */
TickTock 109:3e6f0e8fca0d 439
TickTock 109:3e6f0e8fca0d 440 USB_INT32S Host_CtrlRecv ( USB_INT08U bm_request_type,
TickTock 109:3e6f0e8fca0d 441 USB_INT08U b_request,
TickTock 109:3e6f0e8fca0d 442 USB_INT16U w_value,
TickTock 109:3e6f0e8fca0d 443 USB_INT16U w_index,
TickTock 109:3e6f0e8fca0d 444 USB_INT16U w_length,
TickTock 109:3e6f0e8fca0d 445 volatile USB_INT08U *buffer)
TickTock 109:3e6f0e8fca0d 446 {
TickTock 109:3e6f0e8fca0d 447 USB_INT32S rc;
TickTock 109:3e6f0e8fca0d 448
TickTock 109:3e6f0e8fca0d 449
TickTock 109:3e6f0e8fca0d 450 Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
TickTock 109:3e6f0e8fca0d 451 rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
TickTock 109:3e6f0e8fca0d 452 if (rc == OK) {
TickTock 109:3e6f0e8fca0d 453 if (w_length) {
TickTock 109:3e6f0e8fca0d 454 rc = Host_ProcessTD(EDCtrl, TD_IN, TDBuffer, w_length);
TickTock 109:3e6f0e8fca0d 455 }
TickTock 109:3e6f0e8fca0d 456 if (rc == OK) {
TickTock 109:3e6f0e8fca0d 457 rc = Host_ProcessTD(EDCtrl, TD_OUT, NULL, 0);
TickTock 109:3e6f0e8fca0d 458 }
TickTock 109:3e6f0e8fca0d 459 }
TickTock 109:3e6f0e8fca0d 460 return (rc);
TickTock 109:3e6f0e8fca0d 461 }
TickTock 109:3e6f0e8fca0d 462
TickTock 109:3e6f0e8fca0d 463 /*
TickTock 109:3e6f0e8fca0d 464 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 465 * SEND THE CONTROL INFORMATION
TickTock 109:3e6f0e8fca0d 466 *
TickTock 109:3e6f0e8fca0d 467 * Description: This function is used to send the control information
TickTock 109:3e6f0e8fca0d 468 *
TickTock 109:3e6f0e8fca0d 469 * Arguments : None
TickTock 109:3e6f0e8fca0d 470 *
TickTock 109:3e6f0e8fca0d 471 * Returns : OK if Success
TickTock 109:3e6f0e8fca0d 472 * ERR_INVALID_BOOTSIG if Failed
TickTock 109:3e6f0e8fca0d 473 *
TickTock 109:3e6f0e8fca0d 474 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 475 */
TickTock 109:3e6f0e8fca0d 476
TickTock 109:3e6f0e8fca0d 477 USB_INT32S Host_CtrlSend ( USB_INT08U bm_request_type,
TickTock 109:3e6f0e8fca0d 478 USB_INT08U b_request,
TickTock 109:3e6f0e8fca0d 479 USB_INT16U w_value,
TickTock 109:3e6f0e8fca0d 480 USB_INT16U w_index,
TickTock 109:3e6f0e8fca0d 481 USB_INT16U w_length,
TickTock 109:3e6f0e8fca0d 482 volatile USB_INT08U *buffer)
TickTock 109:3e6f0e8fca0d 483 {
TickTock 109:3e6f0e8fca0d 484 USB_INT32S rc;
TickTock 109:3e6f0e8fca0d 485
TickTock 109:3e6f0e8fca0d 486
TickTock 109:3e6f0e8fca0d 487 Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
TickTock 109:3e6f0e8fca0d 488
TickTock 109:3e6f0e8fca0d 489 rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
TickTock 109:3e6f0e8fca0d 490 if (rc == OK) {
TickTock 109:3e6f0e8fca0d 491 if (w_length) {
TickTock 109:3e6f0e8fca0d 492 rc = Host_ProcessTD(EDCtrl, TD_OUT, TDBuffer, w_length);
TickTock 109:3e6f0e8fca0d 493 }
TickTock 109:3e6f0e8fca0d 494 if (rc == OK) {
TickTock 109:3e6f0e8fca0d 495 rc = Host_ProcessTD(EDCtrl, TD_IN, NULL, 0);
TickTock 109:3e6f0e8fca0d 496 }
TickTock 109:3e6f0e8fca0d 497 }
TickTock 109:3e6f0e8fca0d 498 return (rc);
TickTock 109:3e6f0e8fca0d 499 }
TickTock 109:3e6f0e8fca0d 500
TickTock 109:3e6f0e8fca0d 501 /*
TickTock 109:3e6f0e8fca0d 502 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 503 * FILL SETUP PACKET
TickTock 109:3e6f0e8fca0d 504 *
TickTock 109:3e6f0e8fca0d 505 * Description: This function is used to fill the setup packet
TickTock 109:3e6f0e8fca0d 506 *
TickTock 109:3e6f0e8fca0d 507 * Arguments : None
TickTock 109:3e6f0e8fca0d 508 *
TickTock 109:3e6f0e8fca0d 509 * Returns : OK if Success
TickTock 109:3e6f0e8fca0d 510 * ERR_INVALID_BOOTSIG if Failed
TickTock 109:3e6f0e8fca0d 511 *
TickTock 109:3e6f0e8fca0d 512 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 513 */
TickTock 109:3e6f0e8fca0d 514
TickTock 109:3e6f0e8fca0d 515 void Host_FillSetup (USB_INT08U bm_request_type,
TickTock 109:3e6f0e8fca0d 516 USB_INT08U b_request,
TickTock 109:3e6f0e8fca0d 517 USB_INT16U w_value,
TickTock 109:3e6f0e8fca0d 518 USB_INT16U w_index,
TickTock 109:3e6f0e8fca0d 519 USB_INT16U w_length)
TickTock 109:3e6f0e8fca0d 520 {
TickTock 109:3e6f0e8fca0d 521 int i;
TickTock 109:3e6f0e8fca0d 522 for (i=0;i<w_length;i++)
TickTock 109:3e6f0e8fca0d 523 TDBuffer[i] = 0;
TickTock 109:3e6f0e8fca0d 524
TickTock 109:3e6f0e8fca0d 525 TDBuffer[0] = bm_request_type;
TickTock 109:3e6f0e8fca0d 526 TDBuffer[1] = b_request;
TickTock 109:3e6f0e8fca0d 527 WriteLE16U(&TDBuffer[2], w_value);
TickTock 109:3e6f0e8fca0d 528 WriteLE16U(&TDBuffer[4], w_index);
TickTock 109:3e6f0e8fca0d 529 WriteLE16U(&TDBuffer[6], w_length);
TickTock 109:3e6f0e8fca0d 530 }
TickTock 109:3e6f0e8fca0d 531
TickTock 109:3e6f0e8fca0d 532
TickTock 109:3e6f0e8fca0d 533
TickTock 109:3e6f0e8fca0d 534 /*
TickTock 109:3e6f0e8fca0d 535 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 536 * INITIALIZE THE TRANSFER DESCRIPTOR
TickTock 109:3e6f0e8fca0d 537 *
TickTock 109:3e6f0e8fca0d 538 * Description: This function initializes transfer descriptor
TickTock 109:3e6f0e8fca0d 539 *
TickTock 109:3e6f0e8fca0d 540 * Arguments : Pointer to TD structure
TickTock 109:3e6f0e8fca0d 541 *
TickTock 109:3e6f0e8fca0d 542 * Returns : None
TickTock 109:3e6f0e8fca0d 543 *
TickTock 109:3e6f0e8fca0d 544 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 545 */
TickTock 109:3e6f0e8fca0d 546
TickTock 109:3e6f0e8fca0d 547 void Host_TDInit (volatile HCTD *td)
TickTock 109:3e6f0e8fca0d 548 {
TickTock 109:3e6f0e8fca0d 549
TickTock 109:3e6f0e8fca0d 550 td->Control = 0;
TickTock 109:3e6f0e8fca0d 551 td->CurrBufPtr = 0;
TickTock 109:3e6f0e8fca0d 552 td->Next = 0;
TickTock 109:3e6f0e8fca0d 553 td->BufEnd = 0;
TickTock 109:3e6f0e8fca0d 554 }
TickTock 109:3e6f0e8fca0d 555
TickTock 109:3e6f0e8fca0d 556 /*
TickTock 109:3e6f0e8fca0d 557 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 558 * INITIALIZE THE ENDPOINT DESCRIPTOR
TickTock 109:3e6f0e8fca0d 559 *
TickTock 109:3e6f0e8fca0d 560 * Description: This function initializes endpoint descriptor
TickTock 109:3e6f0e8fca0d 561 *
TickTock 109:3e6f0e8fca0d 562 * Arguments : Pointer to ED strcuture
TickTock 109:3e6f0e8fca0d 563 *
TickTock 109:3e6f0e8fca0d 564 * Returns : None
TickTock 109:3e6f0e8fca0d 565 *
TickTock 109:3e6f0e8fca0d 566 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 567 */
TickTock 109:3e6f0e8fca0d 568
TickTock 109:3e6f0e8fca0d 569 void Host_EDInit (volatile HCED *ed)
TickTock 109:3e6f0e8fca0d 570 {
TickTock 109:3e6f0e8fca0d 571
TickTock 109:3e6f0e8fca0d 572 ed->Control = 0;
TickTock 109:3e6f0e8fca0d 573 ed->TailTd = 0;
TickTock 109:3e6f0e8fca0d 574 ed->HeadTd = 0;
TickTock 109:3e6f0e8fca0d 575 ed->Next = 0;
TickTock 109:3e6f0e8fca0d 576 }
TickTock 109:3e6f0e8fca0d 577
TickTock 109:3e6f0e8fca0d 578 /*
TickTock 109:3e6f0e8fca0d 579 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 580 * INITIALIZE HOST CONTROLLER COMMUNICATIONS AREA
TickTock 109:3e6f0e8fca0d 581 *
TickTock 109:3e6f0e8fca0d 582 * Description: This function initializes host controller communications area
TickTock 109:3e6f0e8fca0d 583 *
TickTock 109:3e6f0e8fca0d 584 * Arguments : Pointer to HCCA
TickTock 109:3e6f0e8fca0d 585 *
TickTock 109:3e6f0e8fca0d 586 * Returns :
TickTock 109:3e6f0e8fca0d 587 *
TickTock 109:3e6f0e8fca0d 588 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 589 */
TickTock 109:3e6f0e8fca0d 590
TickTock 109:3e6f0e8fca0d 591 void Host_HCCAInit (volatile HCCA *hcca)
TickTock 109:3e6f0e8fca0d 592 {
TickTock 109:3e6f0e8fca0d 593 USB_INT32U i;
TickTock 109:3e6f0e8fca0d 594
TickTock 109:3e6f0e8fca0d 595
TickTock 109:3e6f0e8fca0d 596 for (i = 0; i < 32; i++) {
TickTock 109:3e6f0e8fca0d 597
TickTock 109:3e6f0e8fca0d 598 hcca->IntTable[i] = 0;
TickTock 109:3e6f0e8fca0d 599 hcca->FrameNumber = 0;
TickTock 109:3e6f0e8fca0d 600 hcca->DoneHead = 0;
TickTock 109:3e6f0e8fca0d 601 }
TickTock 109:3e6f0e8fca0d 602
TickTock 109:3e6f0e8fca0d 603 }
TickTock 109:3e6f0e8fca0d 604
TickTock 109:3e6f0e8fca0d 605 /*
TickTock 109:3e6f0e8fca0d 606 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 607 * WAIT FOR WDH INTERRUPT
TickTock 109:3e6f0e8fca0d 608 *
TickTock 109:3e6f0e8fca0d 609 * Description: This function is infinite loop which breaks when ever a WDH interrupt rises
TickTock 109:3e6f0e8fca0d 610 *
TickTock 109:3e6f0e8fca0d 611 * Arguments : None
TickTock 109:3e6f0e8fca0d 612 *
TickTock 109:3e6f0e8fca0d 613 * Returns : None
TickTock 109:3e6f0e8fca0d 614 *
TickTock 109:3e6f0e8fca0d 615 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 616 */
TickTock 109:3e6f0e8fca0d 617
TickTock 109:3e6f0e8fca0d 618 void Host_WDHWait (void)
TickTock 109:3e6f0e8fca0d 619 {
TickTock 109:3e6f0e8fca0d 620 while (!HOST_WdhIntr)
TickTock 109:3e6f0e8fca0d 621 __WFI();
TickTock 109:3e6f0e8fca0d 622
TickTock 109:3e6f0e8fca0d 623 HOST_WdhIntr = 0;
TickTock 109:3e6f0e8fca0d 624 }
TickTock 109:3e6f0e8fca0d 625
TickTock 109:3e6f0e8fca0d 626 /*
TickTock 109:3e6f0e8fca0d 627 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 628 * READ LE 32U
TickTock 109:3e6f0e8fca0d 629 *
TickTock 109:3e6f0e8fca0d 630 * Description: This function is used to read an unsigned integer from a character buffer in the platform
TickTock 109:3e6f0e8fca0d 631 * containing little endian processor
TickTock 109:3e6f0e8fca0d 632 *
TickTock 109:3e6f0e8fca0d 633 * Arguments : pmem Pointer to the character buffer
TickTock 109:3e6f0e8fca0d 634 *
TickTock 109:3e6f0e8fca0d 635 * Returns : val Unsigned integer
TickTock 109:3e6f0e8fca0d 636 *
TickTock 109:3e6f0e8fca0d 637 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 638 */
TickTock 109:3e6f0e8fca0d 639
TickTock 109:3e6f0e8fca0d 640 USB_INT32U ReadLE32U (volatile USB_INT08U *pmem)
TickTock 109:3e6f0e8fca0d 641 {
TickTock 109:3e6f0e8fca0d 642 USB_INT32U val = *(USB_INT32U*)pmem;
TickTock 109:3e6f0e8fca0d 643 #ifdef __BIG_ENDIAN
TickTock 109:3e6f0e8fca0d 644 return __REV(val);
TickTock 109:3e6f0e8fca0d 645 #else
TickTock 109:3e6f0e8fca0d 646 return val;
TickTock 109:3e6f0e8fca0d 647 #endif
TickTock 109:3e6f0e8fca0d 648 }
TickTock 109:3e6f0e8fca0d 649
TickTock 109:3e6f0e8fca0d 650 /*
TickTock 109:3e6f0e8fca0d 651 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 652 * WRITE LE 32U
TickTock 109:3e6f0e8fca0d 653 *
TickTock 109:3e6f0e8fca0d 654 * Description: This function is used to write an unsigned integer into a charecter buffer in the platform
TickTock 109:3e6f0e8fca0d 655 * containing little endian processor.
TickTock 109:3e6f0e8fca0d 656 *
TickTock 109:3e6f0e8fca0d 657 * Arguments : pmem Pointer to the charecter buffer
TickTock 109:3e6f0e8fca0d 658 * val Integer value to be placed in the charecter buffer
TickTock 109:3e6f0e8fca0d 659 *
TickTock 109:3e6f0e8fca0d 660 * Returns : None
TickTock 109:3e6f0e8fca0d 661 *
TickTock 109:3e6f0e8fca0d 662 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 663 */
TickTock 109:3e6f0e8fca0d 664
TickTock 109:3e6f0e8fca0d 665 void WriteLE32U (volatile USB_INT08U *pmem,
TickTock 109:3e6f0e8fca0d 666 USB_INT32U val)
TickTock 109:3e6f0e8fca0d 667 {
TickTock 109:3e6f0e8fca0d 668 #ifdef __BIG_ENDIAN
TickTock 109:3e6f0e8fca0d 669 *(USB_INT32U*)pmem = __REV(val);
TickTock 109:3e6f0e8fca0d 670 #else
TickTock 109:3e6f0e8fca0d 671 *(USB_INT32U*)pmem = val;
TickTock 109:3e6f0e8fca0d 672 #endif
TickTock 109:3e6f0e8fca0d 673 }
TickTock 109:3e6f0e8fca0d 674
TickTock 109:3e6f0e8fca0d 675 /*
TickTock 109:3e6f0e8fca0d 676 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 677 * READ LE 16U
TickTock 109:3e6f0e8fca0d 678 *
TickTock 109:3e6f0e8fca0d 679 * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
TickTock 109:3e6f0e8fca0d 680 * containing little endian processor
TickTock 109:3e6f0e8fca0d 681 *
TickTock 109:3e6f0e8fca0d 682 * Arguments : pmem Pointer to the charecter buffer
TickTock 109:3e6f0e8fca0d 683 *
TickTock 109:3e6f0e8fca0d 684 * Returns : val Unsigned short integer
TickTock 109:3e6f0e8fca0d 685 *
TickTock 109:3e6f0e8fca0d 686 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 687 */
TickTock 109:3e6f0e8fca0d 688
TickTock 109:3e6f0e8fca0d 689 USB_INT16U ReadLE16U (volatile USB_INT08U *pmem)
TickTock 109:3e6f0e8fca0d 690 {
TickTock 109:3e6f0e8fca0d 691 USB_INT16U val = *(USB_INT16U*)pmem;
TickTock 109:3e6f0e8fca0d 692 #ifdef __BIG_ENDIAN
TickTock 109:3e6f0e8fca0d 693 return __REV16(val);
TickTock 109:3e6f0e8fca0d 694 #else
TickTock 109:3e6f0e8fca0d 695 return val;
TickTock 109:3e6f0e8fca0d 696 #endif
TickTock 109:3e6f0e8fca0d 697 }
TickTock 109:3e6f0e8fca0d 698
TickTock 109:3e6f0e8fca0d 699 /*
TickTock 109:3e6f0e8fca0d 700 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 701 * WRITE LE 16U
TickTock 109:3e6f0e8fca0d 702 *
TickTock 109:3e6f0e8fca0d 703 * Description: This function is used to write an unsigned short integer into a charecter buffer in the
TickTock 109:3e6f0e8fca0d 704 * platform containing little endian processor
TickTock 109:3e6f0e8fca0d 705 *
TickTock 109:3e6f0e8fca0d 706 * Arguments : pmem Pointer to the charecter buffer
TickTock 109:3e6f0e8fca0d 707 * val Value to be placed in the charecter buffer
TickTock 109:3e6f0e8fca0d 708 *
TickTock 109:3e6f0e8fca0d 709 * Returns : None
TickTock 109:3e6f0e8fca0d 710 *
TickTock 109:3e6f0e8fca0d 711 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 712 */
TickTock 109:3e6f0e8fca0d 713
TickTock 109:3e6f0e8fca0d 714 void WriteLE16U (volatile USB_INT08U *pmem,
TickTock 109:3e6f0e8fca0d 715 USB_INT16U val)
TickTock 109:3e6f0e8fca0d 716 {
TickTock 109:3e6f0e8fca0d 717 #ifdef __BIG_ENDIAN
TickTock 109:3e6f0e8fca0d 718 *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF);
TickTock 109:3e6f0e8fca0d 719 #else
TickTock 109:3e6f0e8fca0d 720 *(USB_INT16U*)pmem = val;
TickTock 109:3e6f0e8fca0d 721 #endif
TickTock 109:3e6f0e8fca0d 722 }
TickTock 109:3e6f0e8fca0d 723
TickTock 109:3e6f0e8fca0d 724 /*
TickTock 109:3e6f0e8fca0d 725 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 726 * READ BE 32U
TickTock 109:3e6f0e8fca0d 727 *
TickTock 109:3e6f0e8fca0d 728 * Description: This function is used to read an unsigned integer from a charecter buffer in the platform
TickTock 109:3e6f0e8fca0d 729 * containing big endian processor
TickTock 109:3e6f0e8fca0d 730 *
TickTock 109:3e6f0e8fca0d 731 * Arguments : pmem Pointer to the charecter buffer
TickTock 109:3e6f0e8fca0d 732 *
TickTock 109:3e6f0e8fca0d 733 * Returns : val Unsigned integer
TickTock 109:3e6f0e8fca0d 734 *
TickTock 109:3e6f0e8fca0d 735 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 736 */
TickTock 109:3e6f0e8fca0d 737
TickTock 109:3e6f0e8fca0d 738 USB_INT32U ReadBE32U (volatile USB_INT08U *pmem)
TickTock 109:3e6f0e8fca0d 739 {
TickTock 109:3e6f0e8fca0d 740 USB_INT32U val = *(USB_INT32U*)pmem;
TickTock 109:3e6f0e8fca0d 741 #ifdef __BIG_ENDIAN
TickTock 109:3e6f0e8fca0d 742 return val;
TickTock 109:3e6f0e8fca0d 743 #else
TickTock 109:3e6f0e8fca0d 744 return __REV(val);
TickTock 109:3e6f0e8fca0d 745 #endif
TickTock 109:3e6f0e8fca0d 746 }
TickTock 109:3e6f0e8fca0d 747
TickTock 109:3e6f0e8fca0d 748 /*
TickTock 109:3e6f0e8fca0d 749 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 750 * WRITE BE 32U
TickTock 109:3e6f0e8fca0d 751 *
TickTock 109:3e6f0e8fca0d 752 * Description: This function is used to write an unsigned integer into a charecter buffer in the platform
TickTock 109:3e6f0e8fca0d 753 * containing big endian processor
TickTock 109:3e6f0e8fca0d 754 *
TickTock 109:3e6f0e8fca0d 755 * Arguments : pmem Pointer to the charecter buffer
TickTock 109:3e6f0e8fca0d 756 * val Value to be placed in the charecter buffer
TickTock 109:3e6f0e8fca0d 757 *
TickTock 109:3e6f0e8fca0d 758 * Returns : None
TickTock 109:3e6f0e8fca0d 759 *
TickTock 109:3e6f0e8fca0d 760 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 761 */
TickTock 109:3e6f0e8fca0d 762
TickTock 109:3e6f0e8fca0d 763 void WriteBE32U (volatile USB_INT08U *pmem,
TickTock 109:3e6f0e8fca0d 764 USB_INT32U val)
TickTock 109:3e6f0e8fca0d 765 {
TickTock 109:3e6f0e8fca0d 766 #ifdef __BIG_ENDIAN
TickTock 109:3e6f0e8fca0d 767 *(USB_INT32U*)pmem = val;
TickTock 109:3e6f0e8fca0d 768 #else
TickTock 109:3e6f0e8fca0d 769 *(USB_INT32U*)pmem = __REV(val);
TickTock 109:3e6f0e8fca0d 770 #endif
TickTock 109:3e6f0e8fca0d 771 }
TickTock 109:3e6f0e8fca0d 772
TickTock 109:3e6f0e8fca0d 773 /*
TickTock 109:3e6f0e8fca0d 774 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 775 * READ BE 16U
TickTock 109:3e6f0e8fca0d 776 *
TickTock 109:3e6f0e8fca0d 777 * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
TickTock 109:3e6f0e8fca0d 778 * containing big endian processor
TickTock 109:3e6f0e8fca0d 779 *
TickTock 109:3e6f0e8fca0d 780 * Arguments : pmem Pointer to the charecter buffer
TickTock 109:3e6f0e8fca0d 781 *
TickTock 109:3e6f0e8fca0d 782 * Returns : val Unsigned short integer
TickTock 109:3e6f0e8fca0d 783 *
TickTock 109:3e6f0e8fca0d 784 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 785 */
TickTock 109:3e6f0e8fca0d 786
TickTock 109:3e6f0e8fca0d 787 USB_INT16U ReadBE16U (volatile USB_INT08U *pmem)
TickTock 109:3e6f0e8fca0d 788 {
TickTock 109:3e6f0e8fca0d 789 USB_INT16U val = *(USB_INT16U*)pmem;
TickTock 109:3e6f0e8fca0d 790 #ifdef __BIG_ENDIAN
TickTock 109:3e6f0e8fca0d 791 return val;
TickTock 109:3e6f0e8fca0d 792 #else
TickTock 109:3e6f0e8fca0d 793 return __REV16(val);
TickTock 109:3e6f0e8fca0d 794 #endif
TickTock 109:3e6f0e8fca0d 795 }
TickTock 109:3e6f0e8fca0d 796
TickTock 109:3e6f0e8fca0d 797 /*
TickTock 109:3e6f0e8fca0d 798 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 799 * WRITE BE 16U
TickTock 109:3e6f0e8fca0d 800 *
TickTock 109:3e6f0e8fca0d 801 * Description: This function is used to write an unsigned short integer into the charecter buffer in the
TickTock 109:3e6f0e8fca0d 802 * platform containing big endian processor
TickTock 109:3e6f0e8fca0d 803 *
TickTock 109:3e6f0e8fca0d 804 * Arguments : pmem Pointer to the charecter buffer
TickTock 109:3e6f0e8fca0d 805 * val Value to be placed in the charecter buffer
TickTock 109:3e6f0e8fca0d 806 *
TickTock 109:3e6f0e8fca0d 807 * Returns : None
TickTock 109:3e6f0e8fca0d 808 *
TickTock 109:3e6f0e8fca0d 809 **************************************************************************************************************
TickTock 109:3e6f0e8fca0d 810 */
TickTock 109:3e6f0e8fca0d 811
TickTock 109:3e6f0e8fca0d 812 void WriteBE16U (volatile USB_INT08U *pmem,
TickTock 109:3e6f0e8fca0d 813 USB_INT16U val)
TickTock 109:3e6f0e8fca0d 814 {
TickTock 109:3e6f0e8fca0d 815 #ifdef __BIG_ENDIAN
TickTock 109:3e6f0e8fca0d 816 *(USB_INT16U*)pmem = val;
TickTock 109:3e6f0e8fca0d 817 #else
TickTock 109:3e6f0e8fca0d 818 *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF);
TickTock 109:3e6f0e8fca0d 819 #endif
TickTock 109:3e6f0e8fca0d 820 }