Stefan Mueller / ChaNFSUSB

This is a lib to use ChaNFS lib with USB mass storages like USB Sticks .. Long file names work

Dependencies:  

Dependents:   WeatherStation

USBHostLite/usbhost_lpc17xx.c@0:f0133ccac168, 2011-02-01 (annotated)

Committer:
NeoBelerophon
Date:
Tue Feb 01 22:14:30 2011 +0000
Revision:
0:f0133ccac168
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
NeoBelerophon 0:f0133ccac168 1 /*
NeoBelerophon 0:f0133ccac168 2 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 3 * NXP USB Host Stack
NeoBelerophon 0:f0133ccac168 4 *
NeoBelerophon 0:f0133ccac168 5 * (c) Copyright 2008, NXP SemiConductors
NeoBelerophon 0:f0133ccac168 6 * (c) Copyright 2008, OnChip Technologies LLC
NeoBelerophon 0:f0133ccac168 7 * All Rights Reserved
NeoBelerophon 0:f0133ccac168 8 *
NeoBelerophon 0:f0133ccac168 9 * www.nxp.com
NeoBelerophon 0:f0133ccac168 10 * www.onchiptech.com
NeoBelerophon 0:f0133ccac168 11 *
NeoBelerophon 0:f0133ccac168 12 * File : usbhost_lpc17xx.c
NeoBelerophon 0:f0133ccac168 13 * Programmer(s) : Ravikanth.P
NeoBelerophon 0:f0133ccac168 14 * Version :
NeoBelerophon 0:f0133ccac168 15 *
NeoBelerophon 0:f0133ccac168 16 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 17 */
NeoBelerophon 0:f0133ccac168 18
NeoBelerophon 0:f0133ccac168 19 /*
NeoBelerophon 0:f0133ccac168 20 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 21 * INCLUDE HEADER FILES
NeoBelerophon 0:f0133ccac168 22 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 23 */
NeoBelerophon 0:f0133ccac168 24
NeoBelerophon 0:f0133ccac168 25 #include "usbhost_lpc17xx.h"
NeoBelerophon 0:f0133ccac168 26
NeoBelerophon 0:f0133ccac168 27 /*
NeoBelerophon 0:f0133ccac168 28 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 29 * GLOBAL VARIABLES
NeoBelerophon 0:f0133ccac168 30 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 31 */
NeoBelerophon 0:f0133ccac168 32 int gUSBConnected;
NeoBelerophon 0:f0133ccac168 33
NeoBelerophon 0:f0133ccac168 34 volatile USB_INT32U HOST_RhscIntr = 0; /* Root Hub Status Change interrupt */
NeoBelerophon 0:f0133ccac168 35 volatile USB_INT32U HOST_WdhIntr = 0; /* Semaphore to wait until the TD is submitted */
NeoBelerophon 0:f0133ccac168 36 volatile USB_INT08U HOST_TDControlStatus = 0;
NeoBelerophon 0:f0133ccac168 37 volatile HCED *EDCtrl; /* Control endpoint descriptor structure */
NeoBelerophon 0:f0133ccac168 38 volatile HCED *EDBulkIn; /* BulkIn endpoint descriptor structure */
NeoBelerophon 0:f0133ccac168 39 volatile HCED *EDBulkOut; /* BulkOut endpoint descriptor structure */
NeoBelerophon 0:f0133ccac168 40 volatile HCTD *TDHead; /* Head transfer descriptor structure */
NeoBelerophon 0:f0133ccac168 41 volatile HCTD *TDTail; /* Tail transfer descriptor structure */
NeoBelerophon 0:f0133ccac168 42 volatile HCCA *Hcca; /* Host Controller Communications Area structure */
NeoBelerophon 0:f0133ccac168 43 USB_INT16U *TDBufNonVol; /* Identical to TDBuffer just to reduce compiler warnings */
NeoBelerophon 0:f0133ccac168 44 volatile USB_INT08U *TDBuffer; /* Current Buffer Pointer of transfer descriptor */
NeoBelerophon 0:f0133ccac168 45
NeoBelerophon 0:f0133ccac168 46 // USB host structures
NeoBelerophon 0:f0133ccac168 47 // AHB SRAM block 1
NeoBelerophon 0:f0133ccac168 48 #define HOSTBASEADDR 0x2007C000
NeoBelerophon 0:f0133ccac168 49 // reserve memory for the linker
NeoBelerophon 0:f0133ccac168 50 static USB_INT08U HostBuf[0x200] __attribute__((at(HOSTBASEADDR)));
NeoBelerophon 0:f0133ccac168 51 /*
NeoBelerophon 0:f0133ccac168 52 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 53 * DELAY IN MILLI SECONDS
NeoBelerophon 0:f0133ccac168 54 *
NeoBelerophon 0:f0133ccac168 55 * Description: This function provides a delay in milli seconds
NeoBelerophon 0:f0133ccac168 56 *
NeoBelerophon 0:f0133ccac168 57 * Arguments : delay The delay required
NeoBelerophon 0:f0133ccac168 58 *
NeoBelerophon 0:f0133ccac168 59 * Returns : None
NeoBelerophon 0:f0133ccac168 60 *
NeoBelerophon 0:f0133ccac168 61 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 62 */
NeoBelerophon 0:f0133ccac168 63
NeoBelerophon 0:f0133ccac168 64 void Host_DelayMS (USB_INT32U delay)
NeoBelerophon 0:f0133ccac168 65 {
NeoBelerophon 0:f0133ccac168 66 volatile USB_INT32U i;
NeoBelerophon 0:f0133ccac168 67
NeoBelerophon 0:f0133ccac168 68
NeoBelerophon 0:f0133ccac168 69 for (i = 0; i < delay; i++) {
NeoBelerophon 0:f0133ccac168 70 Host_DelayUS(1000);
NeoBelerophon 0:f0133ccac168 71 }
NeoBelerophon 0:f0133ccac168 72 }
NeoBelerophon 0:f0133ccac168 73
NeoBelerophon 0:f0133ccac168 74 /*
NeoBelerophon 0:f0133ccac168 75 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 76 * DELAY IN MICRO SECONDS
NeoBelerophon 0:f0133ccac168 77 *
NeoBelerophon 0:f0133ccac168 78 * Description: This function provides a delay in micro seconds
NeoBelerophon 0:f0133ccac168 79 *
NeoBelerophon 0:f0133ccac168 80 * Arguments : delay The delay required
NeoBelerophon 0:f0133ccac168 81 *
NeoBelerophon 0:f0133ccac168 82 * Returns : None
NeoBelerophon 0:f0133ccac168 83 *
NeoBelerophon 0:f0133ccac168 84 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 85 */
NeoBelerophon 0:f0133ccac168 86
NeoBelerophon 0:f0133ccac168 87 void Host_DelayUS (USB_INT32U delay)
NeoBelerophon 0:f0133ccac168 88 {
NeoBelerophon 0:f0133ccac168 89 volatile USB_INT32U i;
NeoBelerophon 0:f0133ccac168 90
NeoBelerophon 0:f0133ccac168 91
NeoBelerophon 0:f0133ccac168 92 for (i = 0; i < (4 * delay); i++) { /* This logic was tested. It gives app. 1 micro sec delay */
NeoBelerophon 0:f0133ccac168 93 ;
NeoBelerophon 0:f0133ccac168 94 }
NeoBelerophon 0:f0133ccac168 95 }
NeoBelerophon 0:f0133ccac168 96
NeoBelerophon 0:f0133ccac168 97 // bits of the USB/OTG clock control register
NeoBelerophon 0:f0133ccac168 98 #define HOST_CLK_EN (1<<0)
NeoBelerophon 0:f0133ccac168 99 #define DEV_CLK_EN (1<<1)
NeoBelerophon 0:f0133ccac168 100 #define PORTSEL_CLK_EN (1<<3)
NeoBelerophon 0:f0133ccac168 101 #define AHB_CLK_EN (1<<4)
NeoBelerophon 0:f0133ccac168 102
NeoBelerophon 0:f0133ccac168 103 // bits of the USB/OTG clock status register
NeoBelerophon 0:f0133ccac168 104 #define HOST_CLK_ON (1<<0)
NeoBelerophon 0:f0133ccac168 105 #define DEV_CLK_ON (1<<1)
NeoBelerophon 0:f0133ccac168 106 #define PORTSEL_CLK_ON (1<<3)
NeoBelerophon 0:f0133ccac168 107 #define AHB_CLK_ON (1<<4)
NeoBelerophon 0:f0133ccac168 108
NeoBelerophon 0:f0133ccac168 109 // we need host clock, OTG/portsel clock and AHB clock
NeoBelerophon 0:f0133ccac168 110 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
NeoBelerophon 0:f0133ccac168 111
NeoBelerophon 0:f0133ccac168 112 /*
NeoBelerophon 0:f0133ccac168 113 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 114 * INITIALIZE THE HOST CONTROLLER
NeoBelerophon 0:f0133ccac168 115 *
NeoBelerophon 0:f0133ccac168 116 * Description: This function initializes lpc17xx host controller
NeoBelerophon 0:f0133ccac168 117 *
NeoBelerophon 0:f0133ccac168 118 * Arguments : None
NeoBelerophon 0:f0133ccac168 119 *
NeoBelerophon 0:f0133ccac168 120 * Returns :
NeoBelerophon 0:f0133ccac168 121 *
NeoBelerophon 0:f0133ccac168 122 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 123 */
NeoBelerophon 0:f0133ccac168 124 void Host_Init (void)
NeoBelerophon 0:f0133ccac168 125 {
NeoBelerophon 0:f0133ccac168 126 PRINT_Log("In Host_Init\n");
NeoBelerophon 0:f0133ccac168 127 NVIC_DisableIRQ(USB_IRQn); /* Disable the USB interrupt source */
NeoBelerophon 0:f0133ccac168 128
NeoBelerophon 0:f0133ccac168 129 // turn on power for USB
NeoBelerophon 0:f0133ccac168 130 LPC_SC->PCONP |= (1UL<<31);
NeoBelerophon 0:f0133ccac168 131 // Enable USB host clock, port selection and AHB clock
NeoBelerophon 0:f0133ccac168 132 LPC_USB->USBClkCtrl |= CLOCK_MASK;
NeoBelerophon 0:f0133ccac168 133 // Wait for clocks to become available
NeoBelerophon 0:f0133ccac168 134 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
NeoBelerophon 0:f0133ccac168 135 ;
NeoBelerophon 0:f0133ccac168 136
NeoBelerophon 0:f0133ccac168 137 // it seems the bits[0:1] mean the following
NeoBelerophon 0:f0133ccac168 138 // 0: U1=device, U2=host
NeoBelerophon 0:f0133ccac168 139 // 1: U1=host, U2=host
NeoBelerophon 0:f0133ccac168 140 // 2: reserved
NeoBelerophon 0:f0133ccac168 141 // 3: U1=host, U2=device
NeoBelerophon 0:f0133ccac168 142 // NB: this register is only available if OTG clock (aka "port select") is enabled!!
NeoBelerophon 0:f0133ccac168 143 // since we don't care about port 2, set just bit 0 to 1 (U1=host)
NeoBelerophon 0:f0133ccac168 144 LPC_USB->OTGStCtrl |= 1;
NeoBelerophon 0:f0133ccac168 145
NeoBelerophon 0:f0133ccac168 146 // now that we've configured the ports, we can turn off the portsel clock
NeoBelerophon 0:f0133ccac168 147 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN;
NeoBelerophon 0:f0133ccac168 148
NeoBelerophon 0:f0133ccac168 149 // power pins are not connected on mbed, so we can skip them
NeoBelerophon 0:f0133ccac168 150 /* P1[18] = USB_UP_LED, 01 */
NeoBelerophon 0:f0133ccac168 151 /* P1[19] = /USB_PPWR, 10 */
NeoBelerophon 0:f0133ccac168 152 /* P1[22] = USB_PWRD, 10 */
NeoBelerophon 0:f0133ccac168 153 /* P1[27] = /USB_OVRCR, 10 */
NeoBelerophon 0:f0133ccac168 154 /*LPC_PINCON->PINSEL3 &= ~((3<<4) | (3<<6) | (3<<12) | (3<<22));
NeoBelerophon 0:f0133ccac168 155 LPC_PINCON->PINSEL3 |= ((1<<4)|(2<<6) | (2<<12) | (2<<22)); // 0x00802080
NeoBelerophon 0:f0133ccac168 156 */
NeoBelerophon 0:f0133ccac168 157
NeoBelerophon 0:f0133ccac168 158 // configure USB D+/D- pins
NeoBelerophon 0:f0133ccac168 159 /* P0[29] = USB_D+, 01 */
NeoBelerophon 0:f0133ccac168 160 /* P0[30] = USB_D-, 01 */
NeoBelerophon 0:f0133ccac168 161 LPC_PINCON->PINSEL1 &= ~((3<<26) | (3<<28));
NeoBelerophon 0:f0133ccac168 162 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // 0x14000000
NeoBelerophon 0:f0133ccac168 163
NeoBelerophon 0:f0133ccac168 164 PRINT_Log("Initializing Host Stack\n");
NeoBelerophon 0:f0133ccac168 165
NeoBelerophon 0:f0133ccac168 166 Hcca = (volatile HCCA *)(HostBuf+0x000);
NeoBelerophon 0:f0133ccac168 167 TDHead = (volatile HCTD *)(HostBuf+0x100);
NeoBelerophon 0:f0133ccac168 168 TDTail = (volatile HCTD *)(HostBuf+0x110);
NeoBelerophon 0:f0133ccac168 169 EDCtrl = (volatile HCED *)(HostBuf+0x120);
NeoBelerophon 0:f0133ccac168 170 EDBulkIn = (volatile HCED *)(HostBuf+0x130);
NeoBelerophon 0:f0133ccac168 171 EDBulkOut = (volatile HCED *)(HostBuf+0x140);
NeoBelerophon 0:f0133ccac168 172 TDBuffer = (volatile USB_INT08U *)(HostBuf+0x150);
NeoBelerophon 0:f0133ccac168 173
NeoBelerophon 0:f0133ccac168 174 /* Initialize all the TDs, EDs and HCCA to 0 */
NeoBelerophon 0:f0133ccac168 175 Host_EDInit(EDCtrl);
NeoBelerophon 0:f0133ccac168 176 Host_EDInit(EDBulkIn);
NeoBelerophon 0:f0133ccac168 177 Host_EDInit(EDBulkOut);
NeoBelerophon 0:f0133ccac168 178 Host_TDInit(TDHead);
NeoBelerophon 0:f0133ccac168 179 Host_TDInit(TDTail);
NeoBelerophon 0:f0133ccac168 180 Host_HCCAInit(Hcca);
NeoBelerophon 0:f0133ccac168 181
NeoBelerophon 0:f0133ccac168 182 Host_DelayMS(50); /* Wait 50 ms before apply reset */
NeoBelerophon 0:f0133ccac168 183 LPC_USB->HcControl = 0; /* HARDWARE RESET */
NeoBelerophon 0:f0133ccac168 184 LPC_USB->HcControlHeadED = 0; /* Initialize Control list head to Zero */
NeoBelerophon 0:f0133ccac168 185 LPC_USB->HcBulkHeadED = 0; /* Initialize Bulk list head to Zero */
NeoBelerophon 0:f0133ccac168 186
NeoBelerophon 0:f0133ccac168 187 /* SOFTWARE RESET */
NeoBelerophon 0:f0133ccac168 188 LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR;
NeoBelerophon 0:f0133ccac168 189 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; /* Write Fm Interval and Largest Data Packet Counter */
NeoBelerophon 0:f0133ccac168 190
NeoBelerophon 0:f0133ccac168 191 /* Put HC in operational state */
NeoBelerophon 0:f0133ccac168 192 LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) | OR_CONTROL_HC_OPER;
NeoBelerophon 0:f0133ccac168 193 LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC; /* Set Global Power */
NeoBelerophon 0:f0133ccac168 194
NeoBelerophon 0:f0133ccac168 195 LPC_USB->HcHCCA = (USB_INT32U)Hcca;
NeoBelerophon 0:f0133ccac168 196 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus; /* Clear Interrrupt Status */
NeoBelerophon 0:f0133ccac168 197
NeoBelerophon 0:f0133ccac168 198
NeoBelerophon 0:f0133ccac168 199 LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE |
NeoBelerophon 0:f0133ccac168 200 OR_INTR_ENABLE_WDH |
NeoBelerophon 0:f0133ccac168 201 OR_INTR_ENABLE_RHSC;
NeoBelerophon 0:f0133ccac168 202
NeoBelerophon 0:f0133ccac168 203 NVIC_SetPriority(USB_IRQn, 0); /* highest priority */
NeoBelerophon 0:f0133ccac168 204 /* Enable the USB Interrupt */
NeoBelerophon 0:f0133ccac168 205 NVIC_EnableIRQ(USB_IRQn);
NeoBelerophon 0:f0133ccac168 206 PRINT_Log("Host Initialized\n");
NeoBelerophon 0:f0133ccac168 207 }
NeoBelerophon 0:f0133ccac168 208
NeoBelerophon 0:f0133ccac168 209 /*
NeoBelerophon 0:f0133ccac168 210 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 211 * INTERRUPT SERVICE ROUTINE
NeoBelerophon 0:f0133ccac168 212 *
NeoBelerophon 0:f0133ccac168 213 * Description: This function services the interrupt caused by host controller
NeoBelerophon 0:f0133ccac168 214 *
NeoBelerophon 0:f0133ccac168 215 * Arguments : None
NeoBelerophon 0:f0133ccac168 216 *
NeoBelerophon 0:f0133ccac168 217 * Returns : None
NeoBelerophon 0:f0133ccac168 218 *
NeoBelerophon 0:f0133ccac168 219 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 220 */
NeoBelerophon 0:f0133ccac168 221
NeoBelerophon 0:f0133ccac168 222 void USB_IRQHandler (void) __irq
NeoBelerophon 0:f0133ccac168 223 {
NeoBelerophon 0:f0133ccac168 224 USB_INT32U int_status;
NeoBelerophon 0:f0133ccac168 225 USB_INT32U ie_status;
NeoBelerophon 0:f0133ccac168 226
NeoBelerophon 0:f0133ccac168 227 int_status = LPC_USB->HcInterruptStatus; /* Read Interrupt Status */
NeoBelerophon 0:f0133ccac168 228 ie_status = LPC_USB->HcInterruptEnable; /* Read Interrupt enable status */
NeoBelerophon 0:f0133ccac168 229
NeoBelerophon 0:f0133ccac168 230 if (!(int_status & ie_status)) {
NeoBelerophon 0:f0133ccac168 231 return;
NeoBelerophon 0:f0133ccac168 232 } else {
NeoBelerophon 0:f0133ccac168 233
NeoBelerophon 0:f0133ccac168 234 int_status = int_status & ie_status;
NeoBelerophon 0:f0133ccac168 235 if (int_status & OR_INTR_STATUS_RHSC) { /* Root hub status change interrupt */
NeoBelerophon 0:f0133ccac168 236 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) {
NeoBelerophon 0:f0133ccac168 237 if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) {
NeoBelerophon 0:f0133ccac168 238 /*
NeoBelerophon 0:f0133ccac168 239 * When DRWE is on, Connect Status Change
NeoBelerophon 0:f0133ccac168 240 * means a remote wakeup event.
NeoBelerophon 0:f0133ccac168 241 */
NeoBelerophon 0:f0133ccac168 242 HOST_RhscIntr = 1;// JUST SOMETHING FOR A BREAKPOINT
NeoBelerophon 0:f0133ccac168 243 }
NeoBelerophon 0:f0133ccac168 244 else {
NeoBelerophon 0:f0133ccac168 245 /*
NeoBelerophon 0:f0133ccac168 246 * When DRWE is off, Connect Status Change
NeoBelerophon 0:f0133ccac168 247 * is NOT a remote wakeup event
NeoBelerophon 0:f0133ccac168 248 */
NeoBelerophon 0:f0133ccac168 249 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) {
NeoBelerophon 0:f0133ccac168 250 if (!gUSBConnected) {
NeoBelerophon 0:f0133ccac168 251 HOST_TDControlStatus = 0;
NeoBelerophon 0:f0133ccac168 252 HOST_WdhIntr = 0;
NeoBelerophon 0:f0133ccac168 253 HOST_RhscIntr = 1;
NeoBelerophon 0:f0133ccac168 254 gUSBConnected = 1;
NeoBelerophon 0:f0133ccac168 255 }
NeoBelerophon 0:f0133ccac168 256 else
NeoBelerophon 0:f0133ccac168 257 PRINT_Log("Spurious status change (connected)?\n");
NeoBelerophon 0:f0133ccac168 258 } else {
NeoBelerophon 0:f0133ccac168 259 if (gUSBConnected) {
NeoBelerophon 0:f0133ccac168 260 LPC_USB->HcInterruptEnable = 0; // why do we get multiple disc. rupts???
NeoBelerophon 0:f0133ccac168 261 HOST_RhscIntr = 0;
NeoBelerophon 0:f0133ccac168 262 gUSBConnected = 0;
NeoBelerophon 0:f0133ccac168 263 }
NeoBelerophon 0:f0133ccac168 264 else
NeoBelerophon 0:f0133ccac168 265 PRINT_Log("Spurious status change (disconnected)?\n");
NeoBelerophon 0:f0133ccac168 266 }
NeoBelerophon 0:f0133ccac168 267 }
NeoBelerophon 0:f0133ccac168 268 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC;
NeoBelerophon 0:f0133ccac168 269 }
NeoBelerophon 0:f0133ccac168 270 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) {
NeoBelerophon 0:f0133ccac168 271 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
NeoBelerophon 0:f0133ccac168 272 }
NeoBelerophon 0:f0133ccac168 273 }
NeoBelerophon 0:f0133ccac168 274 if (int_status & OR_INTR_STATUS_WDH) { /* Writeback Done Head interrupt */
NeoBelerophon 0:f0133ccac168 275 HOST_WdhIntr = 1;
NeoBelerophon 0:f0133ccac168 276 HOST_TDControlStatus = (TDHead->Control >> 28) & 0xf;
NeoBelerophon 0:f0133ccac168 277 }
NeoBelerophon 0:f0133ccac168 278 LPC_USB->HcInterruptStatus = int_status; /* Clear interrupt status register */
NeoBelerophon 0:f0133ccac168 279 }
NeoBelerophon 0:f0133ccac168 280 return;
NeoBelerophon 0:f0133ccac168 281 }
NeoBelerophon 0:f0133ccac168 282
NeoBelerophon 0:f0133ccac168 283 /*
NeoBelerophon 0:f0133ccac168 284 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 285 * PROCESS TRANSFER DESCRIPTOR
NeoBelerophon 0:f0133ccac168 286 *
NeoBelerophon 0:f0133ccac168 287 * Description: This function processes the transfer descriptor
NeoBelerophon 0:f0133ccac168 288 *
NeoBelerophon 0:f0133ccac168 289 * Arguments : ed Endpoint descriptor that contains this transfer descriptor
NeoBelerophon 0:f0133ccac168 290 * token SETUP, IN, OUT
NeoBelerophon 0:f0133ccac168 291 * buffer Current Buffer Pointer of the transfer descriptor
NeoBelerophon 0:f0133ccac168 292 * buffer_len Length of the buffer
NeoBelerophon 0:f0133ccac168 293 *
NeoBelerophon 0:f0133ccac168 294 * Returns : OK if TD submission is successful
NeoBelerophon 0:f0133ccac168 295 * ERROR if TD submission fails
NeoBelerophon 0:f0133ccac168 296 *
NeoBelerophon 0:f0133ccac168 297 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 298 */
NeoBelerophon 0:f0133ccac168 299
NeoBelerophon 0:f0133ccac168 300 USB_INT32S Host_ProcessTD (volatile HCED *ed,
NeoBelerophon 0:f0133ccac168 301 volatile USB_INT32U token,
NeoBelerophon 0:f0133ccac168 302 volatile USB_INT08U *buffer,
NeoBelerophon 0:f0133ccac168 303 USB_INT32U buffer_len)
NeoBelerophon 0:f0133ccac168 304 {
NeoBelerophon 0:f0133ccac168 305 volatile USB_INT32U td_toggle;
NeoBelerophon 0:f0133ccac168 306
NeoBelerophon 0:f0133ccac168 307
NeoBelerophon 0:f0133ccac168 308 if (ed == EDCtrl) {
NeoBelerophon 0:f0133ccac168 309 if (token == TD_SETUP) {
NeoBelerophon 0:f0133ccac168 310 td_toggle = TD_TOGGLE_0;
NeoBelerophon 0:f0133ccac168 311 } else {
NeoBelerophon 0:f0133ccac168 312 td_toggle = TD_TOGGLE_1;
NeoBelerophon 0:f0133ccac168 313 }
NeoBelerophon 0:f0133ccac168 314 } else {
NeoBelerophon 0:f0133ccac168 315 td_toggle = 0;
NeoBelerophon 0:f0133ccac168 316 }
NeoBelerophon 0:f0133ccac168 317 TDHead->Control = (TD_ROUNDING |
NeoBelerophon 0:f0133ccac168 318 token |
NeoBelerophon 0:f0133ccac168 319 TD_DELAY_INT(0) |
NeoBelerophon 0:f0133ccac168 320 td_toggle |
NeoBelerophon 0:f0133ccac168 321 TD_CC);
NeoBelerophon 0:f0133ccac168 322 TDTail->Control = 0;
NeoBelerophon 0:f0133ccac168 323 TDHead->CurrBufPtr = (USB_INT32U) buffer;
NeoBelerophon 0:f0133ccac168 324 TDTail->CurrBufPtr = 0;
NeoBelerophon 0:f0133ccac168 325 TDHead->Next = (USB_INT32U) TDTail;
NeoBelerophon 0:f0133ccac168 326 TDTail->Next = 0;
NeoBelerophon 0:f0133ccac168 327 TDHead->BufEnd = (USB_INT32U)(buffer + (buffer_len - 1));
NeoBelerophon 0:f0133ccac168 328 TDTail->BufEnd = 0;
NeoBelerophon 0:f0133ccac168 329
NeoBelerophon 0:f0133ccac168 330 ed->HeadTd = (USB_INT32U)TDHead | ((ed->HeadTd) & 0x00000002);
NeoBelerophon 0:f0133ccac168 331 ed->TailTd = (USB_INT32U)TDTail;
NeoBelerophon 0:f0133ccac168 332 ed->Next = 0;
NeoBelerophon 0:f0133ccac168 333
NeoBelerophon 0:f0133ccac168 334 if (ed == EDCtrl) {
NeoBelerophon 0:f0133ccac168 335 LPC_USB->HcControlHeadED = (USB_INT32U)ed;
NeoBelerophon 0:f0133ccac168 336 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_CLF;
NeoBelerophon 0:f0133ccac168 337 LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_CLE;
NeoBelerophon 0:f0133ccac168 338 } else {
NeoBelerophon 0:f0133ccac168 339 LPC_USB->HcBulkHeadED = (USB_INT32U)ed;
NeoBelerophon 0:f0133ccac168 340 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_BLF;
NeoBelerophon 0:f0133ccac168 341 LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_BLE;
NeoBelerophon 0:f0133ccac168 342 }
NeoBelerophon 0:f0133ccac168 343
NeoBelerophon 0:f0133ccac168 344 Host_WDHWait();
NeoBelerophon 0:f0133ccac168 345
NeoBelerophon 0:f0133ccac168 346 // if (!(TDHead->Control & 0xF0000000)) {
NeoBelerophon 0:f0133ccac168 347 if (!HOST_TDControlStatus) {
NeoBelerophon 0:f0133ccac168 348 return (OK);
NeoBelerophon 0:f0133ccac168 349 } else {
NeoBelerophon 0:f0133ccac168 350 return (ERR_TD_FAIL);
NeoBelerophon 0:f0133ccac168 351 }
NeoBelerophon 0:f0133ccac168 352 }
NeoBelerophon 0:f0133ccac168 353
NeoBelerophon 0:f0133ccac168 354 /*
NeoBelerophon 0:f0133ccac168 355 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 356 * ENUMERATE THE DEVICE
NeoBelerophon 0:f0133ccac168 357 *
NeoBelerophon 0:f0133ccac168 358 * Description: This function is used to enumerate the device connected
NeoBelerophon 0:f0133ccac168 359 *
NeoBelerophon 0:f0133ccac168 360 * Arguments : None
NeoBelerophon 0:f0133ccac168 361 *
NeoBelerophon 0:f0133ccac168 362 * Returns : None
NeoBelerophon 0:f0133ccac168 363 *
NeoBelerophon 0:f0133ccac168 364 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 365 */
NeoBelerophon 0:f0133ccac168 366
NeoBelerophon 0:f0133ccac168 367 USB_INT32S Host_EnumDev (void)
NeoBelerophon 0:f0133ccac168 368 {
NeoBelerophon 0:f0133ccac168 369 USB_INT32S rc;
NeoBelerophon 0:f0133ccac168 370
NeoBelerophon 0:f0133ccac168 371 PRINT_Log("Connect a Mass Storage device\n");
NeoBelerophon 0:f0133ccac168 372 while (!HOST_RhscIntr)
NeoBelerophon 0:f0133ccac168 373 __WFI();
NeoBelerophon 0:f0133ccac168 374 Host_DelayMS(100); /* USB 2.0 spec says atleast 50ms delay beore port reset */
NeoBelerophon 0:f0133ccac168 375 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS; // Initiate port reset
NeoBelerophon 0:f0133ccac168 376 while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS)
NeoBelerophon 0:f0133ccac168 377 __WFI(); // Wait for port reset to complete...
NeoBelerophon 0:f0133ccac168 378 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; // ...and clear port reset signal
NeoBelerophon 0:f0133ccac168 379 Host_DelayMS(200); /* Wait for 100 MS after port reset */
NeoBelerophon 0:f0133ccac168 380
NeoBelerophon 0:f0133ccac168 381 EDCtrl->Control = 8 << 16; /* Put max pkt size = 8 */
NeoBelerophon 0:f0133ccac168 382 /* Read first 8 bytes of device desc */
NeoBelerophon 0:f0133ccac168 383 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_DEVICE, 0, TDBuffer, 8);
NeoBelerophon 0:f0133ccac168 384 if (rc != OK) {
NeoBelerophon 0:f0133ccac168 385 PRINT_Err(rc);
NeoBelerophon 0:f0133ccac168 386 return (rc);
NeoBelerophon 0:f0133ccac168 387 }
NeoBelerophon 0:f0133ccac168 388 EDCtrl->Control = TDBuffer[7] << 16; /* Get max pkt size of endpoint 0 */
NeoBelerophon 0:f0133ccac168 389 rc = HOST_SET_ADDRESS(1); /* Set the device address to 1 */
NeoBelerophon 0:f0133ccac168 390 if (rc != OK) {
NeoBelerophon 0:f0133ccac168 391 PRINT_Err(rc);
NeoBelerophon 0:f0133ccac168 392 return (rc);
NeoBelerophon 0:f0133ccac168 393 }
NeoBelerophon 0:f0133ccac168 394 Host_DelayMS(2);
NeoBelerophon 0:f0133ccac168 395 EDCtrl->Control = (EDCtrl->Control) | 1; /* Modify control pipe with address 1 */
NeoBelerophon 0:f0133ccac168 396 /* Get the configuration descriptor */
NeoBelerophon 0:f0133ccac168 397 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, 9);
NeoBelerophon 0:f0133ccac168 398 if (rc != OK) {
NeoBelerophon 0:f0133ccac168 399 PRINT_Err(rc);
NeoBelerophon 0:f0133ccac168 400 return (rc);
NeoBelerophon 0:f0133ccac168 401 }
NeoBelerophon 0:f0133ccac168 402 /* Get the first configuration data */
NeoBelerophon 0:f0133ccac168 403 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, ReadLE16U(&TDBuffer[2]));
NeoBelerophon 0:f0133ccac168 404 if (rc != OK) {
NeoBelerophon 0:f0133ccac168 405 PRINT_Err(rc);
NeoBelerophon 0:f0133ccac168 406 return (rc);
NeoBelerophon 0:f0133ccac168 407 }
NeoBelerophon 0:f0133ccac168 408 rc = MS_ParseConfiguration(); /* Parse the configuration */
NeoBelerophon 0:f0133ccac168 409 if (rc != OK) {
NeoBelerophon 0:f0133ccac168 410 PRINT_Err(rc);
NeoBelerophon 0:f0133ccac168 411 return (rc);
NeoBelerophon 0:f0133ccac168 412 }
NeoBelerophon 0:f0133ccac168 413 rc = USBH_SET_CONFIGURATION(1); /* Select device configuration 1 */
NeoBelerophon 0:f0133ccac168 414 if (rc != OK) {
NeoBelerophon 0:f0133ccac168 415 PRINT_Err(rc);
NeoBelerophon 0:f0133ccac168 416 }
NeoBelerophon 0:f0133ccac168 417 Host_DelayMS(100); /* Some devices may require this delay */
NeoBelerophon 0:f0133ccac168 418 return (rc);
NeoBelerophon 0:f0133ccac168 419 }
NeoBelerophon 0:f0133ccac168 420
NeoBelerophon 0:f0133ccac168 421 /*
NeoBelerophon 0:f0133ccac168 422 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 423 * RECEIVE THE CONTROL INFORMATION
NeoBelerophon 0:f0133ccac168 424 *
NeoBelerophon 0:f0133ccac168 425 * Description: This function is used to receive the control information
NeoBelerophon 0:f0133ccac168 426 *
NeoBelerophon 0:f0133ccac168 427 * Arguments : bm_request_type
NeoBelerophon 0:f0133ccac168 428 * b_request
NeoBelerophon 0:f0133ccac168 429 * w_value
NeoBelerophon 0:f0133ccac168 430 * w_index
NeoBelerophon 0:f0133ccac168 431 * w_length
NeoBelerophon 0:f0133ccac168 432 * buffer
NeoBelerophon 0:f0133ccac168 433 *
NeoBelerophon 0:f0133ccac168 434 * Returns : OK if Success
NeoBelerophon 0:f0133ccac168 435 * ERROR if Failed
NeoBelerophon 0:f0133ccac168 436 *
NeoBelerophon 0:f0133ccac168 437 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 438 */
NeoBelerophon 0:f0133ccac168 439
NeoBelerophon 0:f0133ccac168 440 USB_INT32S Host_CtrlRecv ( USB_INT08U bm_request_type,
NeoBelerophon 0:f0133ccac168 441 USB_INT08U b_request,
NeoBelerophon 0:f0133ccac168 442 USB_INT16U w_value,
NeoBelerophon 0:f0133ccac168 443 USB_INT16U w_index,
NeoBelerophon 0:f0133ccac168 444 USB_INT16U w_length,
NeoBelerophon 0:f0133ccac168 445 volatile USB_INT08U *buffer)
NeoBelerophon 0:f0133ccac168 446 {
NeoBelerophon 0:f0133ccac168 447 USB_INT32S rc;
NeoBelerophon 0:f0133ccac168 448
NeoBelerophon 0:f0133ccac168 449
NeoBelerophon 0:f0133ccac168 450 Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
NeoBelerophon 0:f0133ccac168 451 rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
NeoBelerophon 0:f0133ccac168 452 if (rc == OK) {
NeoBelerophon 0:f0133ccac168 453 if (w_length) {
NeoBelerophon 0:f0133ccac168 454 rc = Host_ProcessTD(EDCtrl, TD_IN, TDBuffer, w_length);
NeoBelerophon 0:f0133ccac168 455 }
NeoBelerophon 0:f0133ccac168 456 if (rc == OK) {
NeoBelerophon 0:f0133ccac168 457 rc = Host_ProcessTD(EDCtrl, TD_OUT, NULL, 0);
NeoBelerophon 0:f0133ccac168 458 }
NeoBelerophon 0:f0133ccac168 459 }
NeoBelerophon 0:f0133ccac168 460 return (rc);
NeoBelerophon 0:f0133ccac168 461 }
NeoBelerophon 0:f0133ccac168 462
NeoBelerophon 0:f0133ccac168 463 /*
NeoBelerophon 0:f0133ccac168 464 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 465 * SEND THE CONTROL INFORMATION
NeoBelerophon 0:f0133ccac168 466 *
NeoBelerophon 0:f0133ccac168 467 * Description: This function is used to send the control information
NeoBelerophon 0:f0133ccac168 468 *
NeoBelerophon 0:f0133ccac168 469 * Arguments : None
NeoBelerophon 0:f0133ccac168 470 *
NeoBelerophon 0:f0133ccac168 471 * Returns : OK if Success
NeoBelerophon 0:f0133ccac168 472 * ERR_INVALID_BOOTSIG if Failed
NeoBelerophon 0:f0133ccac168 473 *
NeoBelerophon 0:f0133ccac168 474 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 475 */
NeoBelerophon 0:f0133ccac168 476
NeoBelerophon 0:f0133ccac168 477 USB_INT32S Host_CtrlSend ( USB_INT08U bm_request_type,
NeoBelerophon 0:f0133ccac168 478 USB_INT08U b_request,
NeoBelerophon 0:f0133ccac168 479 USB_INT16U w_value,
NeoBelerophon 0:f0133ccac168 480 USB_INT16U w_index,
NeoBelerophon 0:f0133ccac168 481 USB_INT16U w_length,
NeoBelerophon 0:f0133ccac168 482 volatile USB_INT08U *buffer)
NeoBelerophon 0:f0133ccac168 483 {
NeoBelerophon 0:f0133ccac168 484 USB_INT32S rc;
NeoBelerophon 0:f0133ccac168 485
NeoBelerophon 0:f0133ccac168 486
NeoBelerophon 0:f0133ccac168 487 Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
NeoBelerophon 0:f0133ccac168 488
NeoBelerophon 0:f0133ccac168 489 rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
NeoBelerophon 0:f0133ccac168 490 if (rc == OK) {
NeoBelerophon 0:f0133ccac168 491 if (w_length) {
NeoBelerophon 0:f0133ccac168 492 rc = Host_ProcessTD(EDCtrl, TD_OUT, TDBuffer, w_length);
NeoBelerophon 0:f0133ccac168 493 }
NeoBelerophon 0:f0133ccac168 494 if (rc == OK) {
NeoBelerophon 0:f0133ccac168 495 rc = Host_ProcessTD(EDCtrl, TD_IN, NULL, 0);
NeoBelerophon 0:f0133ccac168 496 }
NeoBelerophon 0:f0133ccac168 497 }
NeoBelerophon 0:f0133ccac168 498 return (rc);
NeoBelerophon 0:f0133ccac168 499 }
NeoBelerophon 0:f0133ccac168 500
NeoBelerophon 0:f0133ccac168 501 /*
NeoBelerophon 0:f0133ccac168 502 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 503 * FILL SETUP PACKET
NeoBelerophon 0:f0133ccac168 504 *
NeoBelerophon 0:f0133ccac168 505 * Description: This function is used to fill the setup packet
NeoBelerophon 0:f0133ccac168 506 *
NeoBelerophon 0:f0133ccac168 507 * Arguments : None
NeoBelerophon 0:f0133ccac168 508 *
NeoBelerophon 0:f0133ccac168 509 * Returns : OK if Success
NeoBelerophon 0:f0133ccac168 510 * ERR_INVALID_BOOTSIG if Failed
NeoBelerophon 0:f0133ccac168 511 *
NeoBelerophon 0:f0133ccac168 512 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 513 */
NeoBelerophon 0:f0133ccac168 514
NeoBelerophon 0:f0133ccac168 515 void Host_FillSetup (USB_INT08U bm_request_type,
NeoBelerophon 0:f0133ccac168 516 USB_INT08U b_request,
NeoBelerophon 0:f0133ccac168 517 USB_INT16U w_value,
NeoBelerophon 0:f0133ccac168 518 USB_INT16U w_index,
NeoBelerophon 0:f0133ccac168 519 USB_INT16U w_length)
NeoBelerophon 0:f0133ccac168 520 {
NeoBelerophon 0:f0133ccac168 521 int i;
NeoBelerophon 0:f0133ccac168 522 for (i=0;i<w_length;i++)
NeoBelerophon 0:f0133ccac168 523 TDBuffer[i] = 0;
NeoBelerophon 0:f0133ccac168 524
NeoBelerophon 0:f0133ccac168 525 TDBuffer[0] = bm_request_type;
NeoBelerophon 0:f0133ccac168 526 TDBuffer[1] = b_request;
NeoBelerophon 0:f0133ccac168 527 WriteLE16U(&TDBuffer[2], w_value);
NeoBelerophon 0:f0133ccac168 528 WriteLE16U(&TDBuffer[4], w_index);
NeoBelerophon 0:f0133ccac168 529 WriteLE16U(&TDBuffer[6], w_length);
NeoBelerophon 0:f0133ccac168 530 }
NeoBelerophon 0:f0133ccac168 531
NeoBelerophon 0:f0133ccac168 532
NeoBelerophon 0:f0133ccac168 533
NeoBelerophon 0:f0133ccac168 534 /*
NeoBelerophon 0:f0133ccac168 535 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 536 * INITIALIZE THE TRANSFER DESCRIPTOR
NeoBelerophon 0:f0133ccac168 537 *
NeoBelerophon 0:f0133ccac168 538 * Description: This function initializes transfer descriptor
NeoBelerophon 0:f0133ccac168 539 *
NeoBelerophon 0:f0133ccac168 540 * Arguments : Pointer to TD structure
NeoBelerophon 0:f0133ccac168 541 *
NeoBelerophon 0:f0133ccac168 542 * Returns : None
NeoBelerophon 0:f0133ccac168 543 *
NeoBelerophon 0:f0133ccac168 544 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 545 */
NeoBelerophon 0:f0133ccac168 546
NeoBelerophon 0:f0133ccac168 547 void Host_TDInit (volatile HCTD *td)
NeoBelerophon 0:f0133ccac168 548 {
NeoBelerophon 0:f0133ccac168 549
NeoBelerophon 0:f0133ccac168 550 td->Control = 0;
NeoBelerophon 0:f0133ccac168 551 td->CurrBufPtr = 0;
NeoBelerophon 0:f0133ccac168 552 td->Next = 0;
NeoBelerophon 0:f0133ccac168 553 td->BufEnd = 0;
NeoBelerophon 0:f0133ccac168 554 }
NeoBelerophon 0:f0133ccac168 555
NeoBelerophon 0:f0133ccac168 556 /*
NeoBelerophon 0:f0133ccac168 557 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 558 * INITIALIZE THE ENDPOINT DESCRIPTOR
NeoBelerophon 0:f0133ccac168 559 *
NeoBelerophon 0:f0133ccac168 560 * Description: This function initializes endpoint descriptor
NeoBelerophon 0:f0133ccac168 561 *
NeoBelerophon 0:f0133ccac168 562 * Arguments : Pointer to ED strcuture
NeoBelerophon 0:f0133ccac168 563 *
NeoBelerophon 0:f0133ccac168 564 * Returns : None
NeoBelerophon 0:f0133ccac168 565 *
NeoBelerophon 0:f0133ccac168 566 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 567 */
NeoBelerophon 0:f0133ccac168 568
NeoBelerophon 0:f0133ccac168 569 void Host_EDInit (volatile HCED *ed)
NeoBelerophon 0:f0133ccac168 570 {
NeoBelerophon 0:f0133ccac168 571
NeoBelerophon 0:f0133ccac168 572 ed->Control = 0;
NeoBelerophon 0:f0133ccac168 573 ed->TailTd = 0;
NeoBelerophon 0:f0133ccac168 574 ed->HeadTd = 0;
NeoBelerophon 0:f0133ccac168 575 ed->Next = 0;
NeoBelerophon 0:f0133ccac168 576 }
NeoBelerophon 0:f0133ccac168 577
NeoBelerophon 0:f0133ccac168 578 /*
NeoBelerophon 0:f0133ccac168 579 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 580 * INITIALIZE HOST CONTROLLER COMMUNICATIONS AREA
NeoBelerophon 0:f0133ccac168 581 *
NeoBelerophon 0:f0133ccac168 582 * Description: This function initializes host controller communications area
NeoBelerophon 0:f0133ccac168 583 *
NeoBelerophon 0:f0133ccac168 584 * Arguments : Pointer to HCCA
NeoBelerophon 0:f0133ccac168 585 *
NeoBelerophon 0:f0133ccac168 586 * Returns :
NeoBelerophon 0:f0133ccac168 587 *
NeoBelerophon 0:f0133ccac168 588 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 589 */
NeoBelerophon 0:f0133ccac168 590
NeoBelerophon 0:f0133ccac168 591 void Host_HCCAInit (volatile HCCA *hcca)
NeoBelerophon 0:f0133ccac168 592 {
NeoBelerophon 0:f0133ccac168 593 USB_INT32U i;
NeoBelerophon 0:f0133ccac168 594
NeoBelerophon 0:f0133ccac168 595
NeoBelerophon 0:f0133ccac168 596 for (i = 0; i < 32; i++) {
NeoBelerophon 0:f0133ccac168 597
NeoBelerophon 0:f0133ccac168 598 hcca->IntTable[i] = 0;
NeoBelerophon 0:f0133ccac168 599 hcca->FrameNumber = 0;
NeoBelerophon 0:f0133ccac168 600 hcca->DoneHead = 0;
NeoBelerophon 0:f0133ccac168 601 }
NeoBelerophon 0:f0133ccac168 602
NeoBelerophon 0:f0133ccac168 603 }
NeoBelerophon 0:f0133ccac168 604
NeoBelerophon 0:f0133ccac168 605 /*
NeoBelerophon 0:f0133ccac168 606 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 607 * WAIT FOR WDH INTERRUPT
NeoBelerophon 0:f0133ccac168 608 *
NeoBelerophon 0:f0133ccac168 609 * Description: This function is infinite loop which breaks when ever a WDH interrupt rises
NeoBelerophon 0:f0133ccac168 610 *
NeoBelerophon 0:f0133ccac168 611 * Arguments : None
NeoBelerophon 0:f0133ccac168 612 *
NeoBelerophon 0:f0133ccac168 613 * Returns : None
NeoBelerophon 0:f0133ccac168 614 *
NeoBelerophon 0:f0133ccac168 615 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 616 */
NeoBelerophon 0:f0133ccac168 617
NeoBelerophon 0:f0133ccac168 618 void Host_WDHWait (void)
NeoBelerophon 0:f0133ccac168 619 {
NeoBelerophon 0:f0133ccac168 620 while (!HOST_WdhIntr)
NeoBelerophon 0:f0133ccac168 621 __WFI();
NeoBelerophon 0:f0133ccac168 622
NeoBelerophon 0:f0133ccac168 623 HOST_WdhIntr = 0;
NeoBelerophon 0:f0133ccac168 624 }
NeoBelerophon 0:f0133ccac168 625
NeoBelerophon 0:f0133ccac168 626 /*
NeoBelerophon 0:f0133ccac168 627 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 628 * READ LE 32U
NeoBelerophon 0:f0133ccac168 629 *
NeoBelerophon 0:f0133ccac168 630 * Description: This function is used to read an unsigned integer from a character buffer in the platform
NeoBelerophon 0:f0133ccac168 631 * containing little endian processor
NeoBelerophon 0:f0133ccac168 632 *
NeoBelerophon 0:f0133ccac168 633 * Arguments : pmem Pointer to the character buffer
NeoBelerophon 0:f0133ccac168 634 *
NeoBelerophon 0:f0133ccac168 635 * Returns : val Unsigned integer
NeoBelerophon 0:f0133ccac168 636 *
NeoBelerophon 0:f0133ccac168 637 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 638 */
NeoBelerophon 0:f0133ccac168 639
NeoBelerophon 0:f0133ccac168 640 USB_INT32U ReadLE32U (volatile USB_INT08U *pmem)
NeoBelerophon 0:f0133ccac168 641 {
NeoBelerophon 0:f0133ccac168 642 USB_INT32U val = *(USB_INT32U*)pmem;
NeoBelerophon 0:f0133ccac168 643 #ifdef __BIG_ENDIAN
NeoBelerophon 0:f0133ccac168 644 return __REV(val);
NeoBelerophon 0:f0133ccac168 645 #else
NeoBelerophon 0:f0133ccac168 646 return val;
NeoBelerophon 0:f0133ccac168 647 #endif
NeoBelerophon 0:f0133ccac168 648 }
NeoBelerophon 0:f0133ccac168 649
NeoBelerophon 0:f0133ccac168 650 /*
NeoBelerophon 0:f0133ccac168 651 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 652 * WRITE LE 32U
NeoBelerophon 0:f0133ccac168 653 *
NeoBelerophon 0:f0133ccac168 654 * Description: This function is used to write an unsigned integer into a charecter buffer in the platform
NeoBelerophon 0:f0133ccac168 655 * containing little endian processor.
NeoBelerophon 0:f0133ccac168 656 *
NeoBelerophon 0:f0133ccac168 657 * Arguments : pmem Pointer to the charecter buffer
NeoBelerophon 0:f0133ccac168 658 * val Integer value to be placed in the charecter buffer
NeoBelerophon 0:f0133ccac168 659 *
NeoBelerophon 0:f0133ccac168 660 * Returns : None
NeoBelerophon 0:f0133ccac168 661 *
NeoBelerophon 0:f0133ccac168 662 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 663 */
NeoBelerophon 0:f0133ccac168 664
NeoBelerophon 0:f0133ccac168 665 void WriteLE32U (volatile USB_INT08U *pmem,
NeoBelerophon 0:f0133ccac168 666 USB_INT32U val)
NeoBelerophon 0:f0133ccac168 667 {
NeoBelerophon 0:f0133ccac168 668 #ifdef __BIG_ENDIAN
NeoBelerophon 0:f0133ccac168 669 *(USB_INT32U*)pmem = __REV(val);
NeoBelerophon 0:f0133ccac168 670 #else
NeoBelerophon 0:f0133ccac168 671 *(USB_INT32U*)pmem = val;
NeoBelerophon 0:f0133ccac168 672 #endif
NeoBelerophon 0:f0133ccac168 673 }
NeoBelerophon 0:f0133ccac168 674
NeoBelerophon 0:f0133ccac168 675 /*
NeoBelerophon 0:f0133ccac168 676 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 677 * READ LE 16U
NeoBelerophon 0:f0133ccac168 678 *
NeoBelerophon 0:f0133ccac168 679 * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
NeoBelerophon 0:f0133ccac168 680 * containing little endian processor
NeoBelerophon 0:f0133ccac168 681 *
NeoBelerophon 0:f0133ccac168 682 * Arguments : pmem Pointer to the charecter buffer
NeoBelerophon 0:f0133ccac168 683 *
NeoBelerophon 0:f0133ccac168 684 * Returns : val Unsigned short integer
NeoBelerophon 0:f0133ccac168 685 *
NeoBelerophon 0:f0133ccac168 686 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 687 */
NeoBelerophon 0:f0133ccac168 688
NeoBelerophon 0:f0133ccac168 689 USB_INT16U ReadLE16U (volatile USB_INT08U *pmem)
NeoBelerophon 0:f0133ccac168 690 {
NeoBelerophon 0:f0133ccac168 691 USB_INT16U val = *(USB_INT16U*)pmem;
NeoBelerophon 0:f0133ccac168 692 #ifdef __BIG_ENDIAN
NeoBelerophon 0:f0133ccac168 693 return __REV16(val);
NeoBelerophon 0:f0133ccac168 694 #else
NeoBelerophon 0:f0133ccac168 695 return val;
NeoBelerophon 0:f0133ccac168 696 #endif
NeoBelerophon 0:f0133ccac168 697 }
NeoBelerophon 0:f0133ccac168 698
NeoBelerophon 0:f0133ccac168 699 /*
NeoBelerophon 0:f0133ccac168 700 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 701 * WRITE LE 16U
NeoBelerophon 0:f0133ccac168 702 *
NeoBelerophon 0:f0133ccac168 703 * Description: This function is used to write an unsigned short integer into a charecter buffer in the
NeoBelerophon 0:f0133ccac168 704 * platform containing little endian processor
NeoBelerophon 0:f0133ccac168 705 *
NeoBelerophon 0:f0133ccac168 706 * Arguments : pmem Pointer to the charecter buffer
NeoBelerophon 0:f0133ccac168 707 * val Value to be placed in the charecter buffer
NeoBelerophon 0:f0133ccac168 708 *
NeoBelerophon 0:f0133ccac168 709 * Returns : None
NeoBelerophon 0:f0133ccac168 710 *
NeoBelerophon 0:f0133ccac168 711 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 712 */
NeoBelerophon 0:f0133ccac168 713
NeoBelerophon 0:f0133ccac168 714 void WriteLE16U (volatile USB_INT08U *pmem,
NeoBelerophon 0:f0133ccac168 715 USB_INT16U val)
NeoBelerophon 0:f0133ccac168 716 {
NeoBelerophon 0:f0133ccac168 717 #ifdef __BIG_ENDIAN
NeoBelerophon 0:f0133ccac168 718 *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF);
NeoBelerophon 0:f0133ccac168 719 #else
NeoBelerophon 0:f0133ccac168 720 *(USB_INT16U*)pmem = val;
NeoBelerophon 0:f0133ccac168 721 #endif
NeoBelerophon 0:f0133ccac168 722 }
NeoBelerophon 0:f0133ccac168 723
NeoBelerophon 0:f0133ccac168 724 /*
NeoBelerophon 0:f0133ccac168 725 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 726 * READ BE 32U
NeoBelerophon 0:f0133ccac168 727 *
NeoBelerophon 0:f0133ccac168 728 * Description: This function is used to read an unsigned integer from a charecter buffer in the platform
NeoBelerophon 0:f0133ccac168 729 * containing big endian processor
NeoBelerophon 0:f0133ccac168 730 *
NeoBelerophon 0:f0133ccac168 731 * Arguments : pmem Pointer to the charecter buffer
NeoBelerophon 0:f0133ccac168 732 *
NeoBelerophon 0:f0133ccac168 733 * Returns : val Unsigned integer
NeoBelerophon 0:f0133ccac168 734 *
NeoBelerophon 0:f0133ccac168 735 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 736 */
NeoBelerophon 0:f0133ccac168 737
NeoBelerophon 0:f0133ccac168 738 USB_INT32U ReadBE32U (volatile USB_INT08U *pmem)
NeoBelerophon 0:f0133ccac168 739 {
NeoBelerophon 0:f0133ccac168 740 USB_INT32U val = *(USB_INT32U*)pmem;
NeoBelerophon 0:f0133ccac168 741 #ifdef __BIG_ENDIAN
NeoBelerophon 0:f0133ccac168 742 return val;
NeoBelerophon 0:f0133ccac168 743 #else
NeoBelerophon 0:f0133ccac168 744 return __REV(val);
NeoBelerophon 0:f0133ccac168 745 #endif
NeoBelerophon 0:f0133ccac168 746 }
NeoBelerophon 0:f0133ccac168 747
NeoBelerophon 0:f0133ccac168 748 /*
NeoBelerophon 0:f0133ccac168 749 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 750 * WRITE BE 32U
NeoBelerophon 0:f0133ccac168 751 *
NeoBelerophon 0:f0133ccac168 752 * Description: This function is used to write an unsigned integer into a charecter buffer in the platform
NeoBelerophon 0:f0133ccac168 753 * containing big endian processor
NeoBelerophon 0:f0133ccac168 754 *
NeoBelerophon 0:f0133ccac168 755 * Arguments : pmem Pointer to the charecter buffer
NeoBelerophon 0:f0133ccac168 756 * val Value to be placed in the charecter buffer
NeoBelerophon 0:f0133ccac168 757 *
NeoBelerophon 0:f0133ccac168 758 * Returns : None
NeoBelerophon 0:f0133ccac168 759 *
NeoBelerophon 0:f0133ccac168 760 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 761 */
NeoBelerophon 0:f0133ccac168 762
NeoBelerophon 0:f0133ccac168 763 void WriteBE32U (volatile USB_INT08U *pmem,
NeoBelerophon 0:f0133ccac168 764 USB_INT32U val)
NeoBelerophon 0:f0133ccac168 765 {
NeoBelerophon 0:f0133ccac168 766 #ifdef __BIG_ENDIAN
NeoBelerophon 0:f0133ccac168 767 *(USB_INT32U*)pmem = val;
NeoBelerophon 0:f0133ccac168 768 #else
NeoBelerophon 0:f0133ccac168 769 *(USB_INT32U*)pmem = __REV(val);
NeoBelerophon 0:f0133ccac168 770 #endif
NeoBelerophon 0:f0133ccac168 771 }
NeoBelerophon 0:f0133ccac168 772
NeoBelerophon 0:f0133ccac168 773 /*
NeoBelerophon 0:f0133ccac168 774 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 775 * READ BE 16U
NeoBelerophon 0:f0133ccac168 776 *
NeoBelerophon 0:f0133ccac168 777 * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
NeoBelerophon 0:f0133ccac168 778 * containing big endian processor
NeoBelerophon 0:f0133ccac168 779 *
NeoBelerophon 0:f0133ccac168 780 * Arguments : pmem Pointer to the charecter buffer
NeoBelerophon 0:f0133ccac168 781 *
NeoBelerophon 0:f0133ccac168 782 * Returns : val Unsigned short integer
NeoBelerophon 0:f0133ccac168 783 *
NeoBelerophon 0:f0133ccac168 784 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 785 */
NeoBelerophon 0:f0133ccac168 786
NeoBelerophon 0:f0133ccac168 787 USB_INT16U ReadBE16U (volatile USB_INT08U *pmem)
NeoBelerophon 0:f0133ccac168 788 {
NeoBelerophon 0:f0133ccac168 789 USB_INT16U val = *(USB_INT16U*)pmem;
NeoBelerophon 0:f0133ccac168 790 #ifdef __BIG_ENDIAN
NeoBelerophon 0:f0133ccac168 791 return val;
NeoBelerophon 0:f0133ccac168 792 #else
NeoBelerophon 0:f0133ccac168 793 return __REV16(val);
NeoBelerophon 0:f0133ccac168 794 #endif
NeoBelerophon 0:f0133ccac168 795 }
NeoBelerophon 0:f0133ccac168 796
NeoBelerophon 0:f0133ccac168 797 /*
NeoBelerophon 0:f0133ccac168 798 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 799 * WRITE BE 16U
NeoBelerophon 0:f0133ccac168 800 *
NeoBelerophon 0:f0133ccac168 801 * Description: This function is used to write an unsigned short integer into the charecter buffer in the
NeoBelerophon 0:f0133ccac168 802 * platform containing big endian processor
NeoBelerophon 0:f0133ccac168 803 *
NeoBelerophon 0:f0133ccac168 804 * Arguments : pmem Pointer to the charecter buffer
NeoBelerophon 0:f0133ccac168 805 * val Value to be placed in the charecter buffer
NeoBelerophon 0:f0133ccac168 806 *
NeoBelerophon 0:f0133ccac168 807 * Returns : None
NeoBelerophon 0:f0133ccac168 808 *
NeoBelerophon 0:f0133ccac168 809 **************************************************************************************************************
NeoBelerophon 0:f0133ccac168 810 */
NeoBelerophon 0:f0133ccac168 811
NeoBelerophon 0:f0133ccac168 812 void WriteBE16U (volatile USB_INT08U *pmem,
NeoBelerophon 0:f0133ccac168 813 USB_INT16U val)
NeoBelerophon 0:f0133ccac168 814 {
NeoBelerophon 0:f0133ccac168 815 #ifdef __BIG_ENDIAN
NeoBelerophon 0:f0133ccac168 816 *(USB_INT16U*)pmem = val;
NeoBelerophon 0:f0133ccac168 817 #else
NeoBelerophon 0:f0133ccac168 818 *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF);
NeoBelerophon 0:f0133ccac168 819 #endif
NeoBelerophon 0:f0133ccac168 820 }