Samir Bouaziz / USBHostLite

is just added to File System Lib used by our students

Dependents:   FileSystem_POPS

usbhost_lpc17xx.cpp@0:7c305139fb85, 2013-11-10 (annotated)

Committer:
bouaziz
Date:
Sun Nov 10 20:59:07 2013 +0000
Revision:
0:7c305139fb85
Very difficult to find lib for USB mass storage access.; This one works fine after few modif.; This is identified POPS because is used by our undergraduate students Polytech Paris Sud Orsay  engineer School;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bouaziz 0:7c305139fb85 1 /*
bouaziz 0:7c305139fb85 2 **************************************************************************************************************
bouaziz 0:7c305139fb85 3 * NXP USB Host Stack
bouaziz 0:7c305139fb85 4 *
bouaziz 0:7c305139fb85 5 * (c) Copyright 2008, NXP SemiConductors
bouaziz 0:7c305139fb85 6 * (c) Copyright 2008, OnChip Technologies LLC
bouaziz 0:7c305139fb85 7 * All Rights Reserved
bouaziz 0:7c305139fb85 8 *
bouaziz 0:7c305139fb85 9 * www.nxp.com
bouaziz 0:7c305139fb85 10 * www.onchiptech.com
bouaziz 0:7c305139fb85 11 *
bouaziz 0:7c305139fb85 12 * File : usbhost_lpc17xx.c
bouaziz 0:7c305139fb85 13 * Programmer(s) : Ravikanth.P
bouaziz 0:7c305139fb85 14 * Version :
bouaziz 0:7c305139fb85 15 *
bouaziz 0:7c305139fb85 16 **************************************************************************************************************
bouaziz 0:7c305139fb85 17 */
bouaziz 0:7c305139fb85 18
bouaziz 0:7c305139fb85 19 /*
bouaziz 0:7c305139fb85 20 **************************************************************************************************************
bouaziz 0:7c305139fb85 21 * INCLUDE HEADER FILES
bouaziz 0:7c305139fb85 22 **************************************************************************************************************
bouaziz 0:7c305139fb85 23 */
bouaziz 0:7c305139fb85 24
bouaziz 0:7c305139fb85 25 #include "usbhost_lpc17xx.h"
bouaziz 0:7c305139fb85 26
bouaziz 0:7c305139fb85 27 /*
bouaziz 0:7c305139fb85 28 **************************************************************************************************************
bouaziz 0:7c305139fb85 29 * GLOBAL VARIABLES
bouaziz 0:7c305139fb85 30 **************************************************************************************************************
bouaziz 0:7c305139fb85 31 */
bouaziz 0:7c305139fb85 32 int gUSBConnected;
bouaziz 0:7c305139fb85 33
bouaziz 0:7c305139fb85 34 volatile USB_INT32U HOST_RhscIntr = 0; /* Root Hub Status Change interrupt */
bouaziz 0:7c305139fb85 35 volatile USB_INT32U HOST_WdhIntr = 0; /* Semaphore to wait until the TD is submitted */
bouaziz 0:7c305139fb85 36 volatile USB_INT08U HOST_TDControlStatus = 0;
bouaziz 0:7c305139fb85 37 volatile HCED *EDCtrl; /* Control endpoint descriptor structure */
bouaziz 0:7c305139fb85 38 volatile HCED *EDBulkIn; /* BulkIn endpoint descriptor structure */
bouaziz 0:7c305139fb85 39 volatile HCED *EDBulkOut; /* BulkOut endpoint descriptor structure */
bouaziz 0:7c305139fb85 40 volatile HCTD *TDHead; /* Head transfer descriptor structure */
bouaziz 0:7c305139fb85 41 volatile HCTD *TDTail; /* Tail transfer descriptor structure */
bouaziz 0:7c305139fb85 42 volatile HCCA *Hcca; /* Host Controller Communications Area structure */
bouaziz 0:7c305139fb85 43 USB_INT16U *TDBufNonVol; /* Identical to TDBuffer just to reduce compiler warnings */
bouaziz 0:7c305139fb85 44 volatile USB_INT08U *TDBuffer; /* Current Buffer Pointer of transfer descriptor */
bouaziz 0:7c305139fb85 45
bouaziz 0:7c305139fb85 46 // USB host structures
bouaziz 0:7c305139fb85 47 // AHB SRAM block 1
bouaziz 0:7c305139fb85 48 #define HOSTBASEADDR 0x2007C000
bouaziz 0:7c305139fb85 49 // reserve memory for the linker
bouaziz 0:7c305139fb85 50 static USB_INT08U HostBuf[0x200] __attribute__((at(HOSTBASEADDR)));
bouaziz 0:7c305139fb85 51 /*
bouaziz 0:7c305139fb85 52 **************************************************************************************************************
bouaziz 0:7c305139fb85 53 * DELAY IN MILLI SECONDS
bouaziz 0:7c305139fb85 54 *
bouaziz 0:7c305139fb85 55 * Description: This function provides a delay in milli seconds
bouaziz 0:7c305139fb85 56 *
bouaziz 0:7c305139fb85 57 * Arguments : delay The delay required
bouaziz 0:7c305139fb85 58 *
bouaziz 0:7c305139fb85 59 * Returns : None
bouaziz 0:7c305139fb85 60 *
bouaziz 0:7c305139fb85 61 **************************************************************************************************************
bouaziz 0:7c305139fb85 62 */
bouaziz 0:7c305139fb85 63
bouaziz 0:7c305139fb85 64 void Host_DelayMS (USB_INT32U delay)
bouaziz 0:7c305139fb85 65 {
bouaziz 0:7c305139fb85 66 volatile USB_INT32U i;
bouaziz 0:7c305139fb85 67
bouaziz 0:7c305139fb85 68
bouaziz 0:7c305139fb85 69 for (i = 0; i < delay; i++) {
bouaziz 0:7c305139fb85 70 Host_DelayUS(1000);
bouaziz 0:7c305139fb85 71 }
bouaziz 0:7c305139fb85 72 }
bouaziz 0:7c305139fb85 73
bouaziz 0:7c305139fb85 74 /*
bouaziz 0:7c305139fb85 75 **************************************************************************************************************
bouaziz 0:7c305139fb85 76 * DELAY IN MICRO SECONDS
bouaziz 0:7c305139fb85 77 *
bouaziz 0:7c305139fb85 78 * Description: This function provides a delay in micro seconds
bouaziz 0:7c305139fb85 79 *
bouaziz 0:7c305139fb85 80 * Arguments : delay The delay required
bouaziz 0:7c305139fb85 81 *
bouaziz 0:7c305139fb85 82 * Returns : None
bouaziz 0:7c305139fb85 83 *
bouaziz 0:7c305139fb85 84 **************************************************************************************************************
bouaziz 0:7c305139fb85 85 */
bouaziz 0:7c305139fb85 86
bouaziz 0:7c305139fb85 87 void Host_DelayUS (USB_INT32U delay)
bouaziz 0:7c305139fb85 88 {
bouaziz 0:7c305139fb85 89 volatile USB_INT32U i;
bouaziz 0:7c305139fb85 90
bouaziz 0:7c305139fb85 91
bouaziz 0:7c305139fb85 92 for (i = 0; i < (4 * delay); i++) { /* This logic was tested. It gives app. 1 micro sec delay */
bouaziz 0:7c305139fb85 93 ;
bouaziz 0:7c305139fb85 94 }
bouaziz 0:7c305139fb85 95 }
bouaziz 0:7c305139fb85 96
bouaziz 0:7c305139fb85 97 // bits of the USB/OTG clock control register
bouaziz 0:7c305139fb85 98 #define HOST_CLK_EN (1<<0)
bouaziz 0:7c305139fb85 99 #define DEV_CLK_EN (1<<1)
bouaziz 0:7c305139fb85 100 #define PORTSEL_CLK_EN (1<<3)
bouaziz 0:7c305139fb85 101 #define AHB_CLK_EN (1<<4)
bouaziz 0:7c305139fb85 102
bouaziz 0:7c305139fb85 103 // bits of the USB/OTG clock status register
bouaziz 0:7c305139fb85 104 #define HOST_CLK_ON (1<<0)
bouaziz 0:7c305139fb85 105 #define DEV_CLK_ON (1<<1)
bouaziz 0:7c305139fb85 106 #define PORTSEL_CLK_ON (1<<3)
bouaziz 0:7c305139fb85 107 #define AHB_CLK_ON (1<<4)
bouaziz 0:7c305139fb85 108
bouaziz 0:7c305139fb85 109 // we need host clock, OTG/portsel clock and AHB clock
bouaziz 0:7c305139fb85 110 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
bouaziz 0:7c305139fb85 111
bouaziz 0:7c305139fb85 112 /*
bouaziz 0:7c305139fb85 113 **************************************************************************************************************
bouaziz 0:7c305139fb85 114 * INITIALIZE THE HOST CONTROLLER
bouaziz 0:7c305139fb85 115 *
bouaziz 0:7c305139fb85 116 * Description: This function initializes lpc17xx host controller
bouaziz 0:7c305139fb85 117 *
bouaziz 0:7c305139fb85 118 * Arguments : None
bouaziz 0:7c305139fb85 119 *
bouaziz 0:7c305139fb85 120 * Returns :
bouaziz 0:7c305139fb85 121 *
bouaziz 0:7c305139fb85 122 **************************************************************************************************************
bouaziz 0:7c305139fb85 123 */
bouaziz 0:7c305139fb85 124 void Host_Init (void)
bouaziz 0:7c305139fb85 125 {
bouaziz 0:7c305139fb85 126 PRINT_Log("In Host_Init\r\n");
bouaziz 0:7c305139fb85 127 NVIC_DisableIRQ(USB_IRQn); /* Disable the USB interrupt source */
bouaziz 0:7c305139fb85 128
bouaziz 0:7c305139fb85 129 // turn on power for USB
bouaziz 0:7c305139fb85 130 LPC_SC->PCONP |= (1UL<<31);
bouaziz 0:7c305139fb85 131 // Enable USB host clock, port selection and AHB clock
bouaziz 0:7c305139fb85 132 LPC_USB->USBClkCtrl |= CLOCK_MASK;
bouaziz 0:7c305139fb85 133 // Wait for clocks to become available
bouaziz 0:7c305139fb85 134 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
bouaziz 0:7c305139fb85 135 ;
bouaziz 0:7c305139fb85 136
bouaziz 0:7c305139fb85 137 // it seems the bits[0:1] mean the following
bouaziz 0:7c305139fb85 138 // 0: U1=device, U2=host
bouaziz 0:7c305139fb85 139 // 1: U1=host, U2=host
bouaziz 0:7c305139fb85 140 // 2: reserved
bouaziz 0:7c305139fb85 141 // 3: U1=host, U2=device
bouaziz 0:7c305139fb85 142 // NB: this register is only available if OTG clock (aka "port select") is enabled!!
bouaziz 0:7c305139fb85 143 // since we don't care about port 2, set just bit 0 to 1 (U1=host)
bouaziz 0:7c305139fb85 144 LPC_USB->OTGStCtrl |= 1;
bouaziz 0:7c305139fb85 145
bouaziz 0:7c305139fb85 146 // now that we've configured the ports, we can turn off the portsel clock
bouaziz 0:7c305139fb85 147 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN;
bouaziz 0:7c305139fb85 148
bouaziz 0:7c305139fb85 149 // power pins are not connected on mbed, so we can skip them
bouaziz 0:7c305139fb85 150 /* P1[18] = USB_UP_LED, 01 */
bouaziz 0:7c305139fb85 151 /* P1[19] = /USB_PPWR, 10 */
bouaziz 0:7c305139fb85 152 /* P1[22] = USB_PWRD, 10 */
bouaziz 0:7c305139fb85 153 /* P1[27] = /USB_OVRCR, 10 */
bouaziz 0:7c305139fb85 154 /*LPC_PINCON->PINSEL3 &= ~((3<<4) | (3<<6) | (3<<12) | (3<<22));
bouaziz 0:7c305139fb85 155 LPC_PINCON->PINSEL3 |= ((1<<4)|(2<<6) | (2<<12) | (2<<22)); // 0x00802080
bouaziz 0:7c305139fb85 156 */
bouaziz 0:7c305139fb85 157
bouaziz 0:7c305139fb85 158 // configure USB D+/D- pins
bouaziz 0:7c305139fb85 159 /* P0[29] = USB_D+, 01 */
bouaziz 0:7c305139fb85 160 /* P0[30] = USB_D-, 01 */
bouaziz 0:7c305139fb85 161 LPC_PINCON->PINSEL1 &= ~((3<<26) | (3<<28));
bouaziz 0:7c305139fb85 162 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // 0x14000000
bouaziz 0:7c305139fb85 163
bouaziz 0:7c305139fb85 164 PRINT_Log("Initializing Host Stack\r\n");
bouaziz 0:7c305139fb85 165
bouaziz 0:7c305139fb85 166 Hcca = (volatile HCCA *)(HostBuf+0x000);
bouaziz 0:7c305139fb85 167 TDHead = (volatile HCTD *)(HostBuf+0x100);
bouaziz 0:7c305139fb85 168 TDTail = (volatile HCTD *)(HostBuf+0x110);
bouaziz 0:7c305139fb85 169 EDCtrl = (volatile HCED *)(HostBuf+0x120);
bouaziz 0:7c305139fb85 170 EDBulkIn = (volatile HCED *)(HostBuf+0x130);
bouaziz 0:7c305139fb85 171 EDBulkOut = (volatile HCED *)(HostBuf+0x140);
bouaziz 0:7c305139fb85 172 TDBuffer = (volatile USB_INT08U *)(HostBuf+0x150);
bouaziz 0:7c305139fb85 173
bouaziz 0:7c305139fb85 174 /* Initialize all the TDs, EDs and HCCA to 0 */
bouaziz 0:7c305139fb85 175 Host_EDInit(EDCtrl);
bouaziz 0:7c305139fb85 176 Host_EDInit(EDBulkIn);
bouaziz 0:7c305139fb85 177 Host_EDInit(EDBulkOut);
bouaziz 0:7c305139fb85 178 Host_TDInit(TDHead);
bouaziz 0:7c305139fb85 179 Host_TDInit(TDTail);
bouaziz 0:7c305139fb85 180 Host_HCCAInit(Hcca);
bouaziz 0:7c305139fb85 181
bouaziz 0:7c305139fb85 182 Host_DelayMS(50); /* Wait 50 ms before apply reset */
bouaziz 0:7c305139fb85 183 LPC_USB->HcControl = 0; /* HARDWARE RESET */
bouaziz 0:7c305139fb85 184 LPC_USB->HcControlHeadED = 0; /* Initialize Control list head to Zero */
bouaziz 0:7c305139fb85 185 LPC_USB->HcBulkHeadED = 0; /* Initialize Bulk list head to Zero */
bouaziz 0:7c305139fb85 186
bouaziz 0:7c305139fb85 187 /* SOFTWARE RESET */
bouaziz 0:7c305139fb85 188 LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR;
bouaziz 0:7c305139fb85 189 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; /* Write Fm Interval and Largest Data Packet Counter */
bouaziz 0:7c305139fb85 190
bouaziz 0:7c305139fb85 191 /* Put HC in operational state */
bouaziz 0:7c305139fb85 192 LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) | OR_CONTROL_HC_OPER;
bouaziz 0:7c305139fb85 193 LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC; /* Set Global Power */
bouaziz 0:7c305139fb85 194
bouaziz 0:7c305139fb85 195 LPC_USB->HcHCCA = (USB_INT32U)Hcca;
bouaziz 0:7c305139fb85 196 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus; /* Clear Interrrupt Status */
bouaziz 0:7c305139fb85 197
bouaziz 0:7c305139fb85 198
bouaziz 0:7c305139fb85 199 LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE |
bouaziz 0:7c305139fb85 200 OR_INTR_ENABLE_WDH |
bouaziz 0:7c305139fb85 201 OR_INTR_ENABLE_RHSC;
bouaziz 0:7c305139fb85 202
bouaziz 0:7c305139fb85 203 NVIC_SetPriority(USB_IRQn, 0); /* highest priority */
bouaziz 0:7c305139fb85 204 /* Enable the USB Interrupt */
bouaziz 0:7c305139fb85 205 NVIC_EnableIRQ(USB_IRQn);
bouaziz 0:7c305139fb85 206 PRINT_Log("Host Initialized\r\n");
bouaziz 0:7c305139fb85 207 }
bouaziz 0:7c305139fb85 208
bouaziz 0:7c305139fb85 209 /*
bouaziz 0:7c305139fb85 210 **************************************************************************************************************
bouaziz 0:7c305139fb85 211 * INTERRUPT SERVICE ROUTINE
bouaziz 0:7c305139fb85 212 *
bouaziz 0:7c305139fb85 213 * Description: This function services the interrupt caused by host controller
bouaziz 0:7c305139fb85 214 *
bouaziz 0:7c305139fb85 215 * Arguments : None
bouaziz 0:7c305139fb85 216 *
bouaziz 0:7c305139fb85 217 * Returns : None
bouaziz 0:7c305139fb85 218 *
bouaziz 0:7c305139fb85 219 **************************************************************************************************************
bouaziz 0:7c305139fb85 220 */
bouaziz 0:7c305139fb85 221
bouaziz 0:7c305139fb85 222 void USB_IRQHandler (void) __irq
bouaziz 0:7c305139fb85 223 {
bouaziz 0:7c305139fb85 224 USB_INT32U int_status;
bouaziz 0:7c305139fb85 225 USB_INT32U ie_status;
bouaziz 0:7c305139fb85 226
bouaziz 0:7c305139fb85 227 int_status = LPC_USB->HcInterruptStatus; /* Read Interrupt Status */
bouaziz 0:7c305139fb85 228 ie_status = LPC_USB->HcInterruptEnable; /* Read Interrupt enable status */
bouaziz 0:7c305139fb85 229
bouaziz 0:7c305139fb85 230 if (!(int_status & ie_status)) {
bouaziz 0:7c305139fb85 231 return;
bouaziz 0:7c305139fb85 232 } else {
bouaziz 0:7c305139fb85 233
bouaziz 0:7c305139fb85 234 int_status = int_status & ie_status;
bouaziz 0:7c305139fb85 235 if (int_status & OR_INTR_STATUS_RHSC) { /* Root hub status change interrupt */
bouaziz 0:7c305139fb85 236 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) {
bouaziz 0:7c305139fb85 237 if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) {
bouaziz 0:7c305139fb85 238 /*
bouaziz 0:7c305139fb85 239 * When DRWE is on, Connect Status Change
bouaziz 0:7c305139fb85 240 * means a remote wakeup event.
bouaziz 0:7c305139fb85 241 */
bouaziz 0:7c305139fb85 242 HOST_RhscIntr = 1;// JUST SOMETHING FOR A BREAKPOINT
bouaziz 0:7c305139fb85 243 }
bouaziz 0:7c305139fb85 244 else {
bouaziz 0:7c305139fb85 245 /*
bouaziz 0:7c305139fb85 246 * When DRWE is off, Connect Status Change
bouaziz 0:7c305139fb85 247 * is NOT a remote wakeup event
bouaziz 0:7c305139fb85 248 */
bouaziz 0:7c305139fb85 249 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) {
bouaziz 0:7c305139fb85 250 if (!gUSBConnected) {
bouaziz 0:7c305139fb85 251 HOST_TDControlStatus = 0;
bouaziz 0:7c305139fb85 252 HOST_WdhIntr = 0;
bouaziz 0:7c305139fb85 253 HOST_RhscIntr = 1;
bouaziz 0:7c305139fb85 254 gUSBConnected = 1;
bouaziz 0:7c305139fb85 255 }
bouaziz 0:7c305139fb85 256 else
bouaziz 0:7c305139fb85 257 PRINT_Log("Spurious status change (connected)?\r\n");
bouaziz 0:7c305139fb85 258 } else {
bouaziz 0:7c305139fb85 259 if (gUSBConnected) {
bouaziz 0:7c305139fb85 260 LPC_USB->HcInterruptEnable = 0; // why do we get multiple disc. rupts???
bouaziz 0:7c305139fb85 261 HOST_RhscIntr = 0;
bouaziz 0:7c305139fb85 262 gUSBConnected = 0;
bouaziz 0:7c305139fb85 263 }
bouaziz 0:7c305139fb85 264 else
bouaziz 0:7c305139fb85 265 PRINT_Log("Spurious status change (disconnected)?\r\n");
bouaziz 0:7c305139fb85 266 }
bouaziz 0:7c305139fb85 267 }
bouaziz 0:7c305139fb85 268 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC;
bouaziz 0:7c305139fb85 269 }
bouaziz 0:7c305139fb85 270 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) {
bouaziz 0:7c305139fb85 271 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
bouaziz 0:7c305139fb85 272 }
bouaziz 0:7c305139fb85 273 }
bouaziz 0:7c305139fb85 274 if (int_status & OR_INTR_STATUS_WDH) { /* Writeback Done Head interrupt */
bouaziz 0:7c305139fb85 275 HOST_WdhIntr = 1;
bouaziz 0:7c305139fb85 276 HOST_TDControlStatus = (TDHead->Control >> 28) & 0xf;
bouaziz 0:7c305139fb85 277 }
bouaziz 0:7c305139fb85 278 LPC_USB->HcInterruptStatus = int_status; /* Clear interrupt status register */
bouaziz 0:7c305139fb85 279 }
bouaziz 0:7c305139fb85 280 return;
bouaziz 0:7c305139fb85 281 }
bouaziz 0:7c305139fb85 282
bouaziz 0:7c305139fb85 283 /*
bouaziz 0:7c305139fb85 284 **************************************************************************************************************
bouaziz 0:7c305139fb85 285 * PROCESS TRANSFER DESCRIPTOR
bouaziz 0:7c305139fb85 286 *
bouaziz 0:7c305139fb85 287 * Description: This function processes the transfer descriptor
bouaziz 0:7c305139fb85 288 *
bouaziz 0:7c305139fb85 289 * Arguments : ed Endpoint descriptor that contains this transfer descriptor
bouaziz 0:7c305139fb85 290 * token SETUP, IN, OUT
bouaziz 0:7c305139fb85 291 * buffer Current Buffer Pointer of the transfer descriptor
bouaziz 0:7c305139fb85 292 * buffer_len Length of the buffer
bouaziz 0:7c305139fb85 293 *
bouaziz 0:7c305139fb85 294 * Returns : OK if TD submission is successful
bouaziz 0:7c305139fb85 295 * ERROR if TD submission fails
bouaziz 0:7c305139fb85 296 *
bouaziz 0:7c305139fb85 297 **************************************************************************************************************
bouaziz 0:7c305139fb85 298 */
bouaziz 0:7c305139fb85 299
bouaziz 0:7c305139fb85 300 USB_INT32S Host_ProcessTD (volatile HCED *ed,
bouaziz 0:7c305139fb85 301 volatile USB_INT32U token,
bouaziz 0:7c305139fb85 302 volatile USB_INT08U *buffer,
bouaziz 0:7c305139fb85 303 USB_INT32U buffer_len)
bouaziz 0:7c305139fb85 304 {
bouaziz 0:7c305139fb85 305 volatile USB_INT32U td_toggle;
bouaziz 0:7c305139fb85 306
bouaziz 0:7c305139fb85 307
bouaziz 0:7c305139fb85 308 if (ed == EDCtrl) {
bouaziz 0:7c305139fb85 309 if (token == TD_SETUP) {
bouaziz 0:7c305139fb85 310 td_toggle = TD_TOGGLE_0;
bouaziz 0:7c305139fb85 311 } else {
bouaziz 0:7c305139fb85 312 td_toggle = TD_TOGGLE_1;
bouaziz 0:7c305139fb85 313 }
bouaziz 0:7c305139fb85 314 } else {
bouaziz 0:7c305139fb85 315 td_toggle = 0;
bouaziz 0:7c305139fb85 316 }
bouaziz 0:7c305139fb85 317 TDHead->Control = (TD_ROUNDING |
bouaziz 0:7c305139fb85 318 token |
bouaziz 0:7c305139fb85 319 TD_DELAY_INT(0) |
bouaziz 0:7c305139fb85 320 td_toggle |
bouaziz 0:7c305139fb85 321 TD_CC);
bouaziz 0:7c305139fb85 322 TDTail->Control = 0;
bouaziz 0:7c305139fb85 323 TDHead->CurrBufPtr = (USB_INT32U) buffer;
bouaziz 0:7c305139fb85 324 TDTail->CurrBufPtr = 0;
bouaziz 0:7c305139fb85 325 TDHead->Next = (USB_INT32U) TDTail;
bouaziz 0:7c305139fb85 326 TDTail->Next = 0;
bouaziz 0:7c305139fb85 327 TDHead->BufEnd = (USB_INT32U)(buffer + (buffer_len - 1));
bouaziz 0:7c305139fb85 328 TDTail->BufEnd = 0;
bouaziz 0:7c305139fb85 329
bouaziz 0:7c305139fb85 330 ed->HeadTd = (USB_INT32U)TDHead | ((ed->HeadTd) & 0x00000002);
bouaziz 0:7c305139fb85 331 ed->TailTd = (USB_INT32U)TDTail;
bouaziz 0:7c305139fb85 332 ed->Next = 0;
bouaziz 0:7c305139fb85 333
bouaziz 0:7c305139fb85 334 if (ed == EDCtrl) {
bouaziz 0:7c305139fb85 335 LPC_USB->HcControlHeadED = (USB_INT32U)ed;
bouaziz 0:7c305139fb85 336 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_CLF;
bouaziz 0:7c305139fb85 337 LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_CLE;
bouaziz 0:7c305139fb85 338 } else {
bouaziz 0:7c305139fb85 339 LPC_USB->HcBulkHeadED = (USB_INT32U)ed;
bouaziz 0:7c305139fb85 340 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_BLF;
bouaziz 0:7c305139fb85 341 LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_BLE;
bouaziz 0:7c305139fb85 342 }
bouaziz 0:7c305139fb85 343
bouaziz 0:7c305139fb85 344 Host_WDHWait();
bouaziz 0:7c305139fb85 345
bouaziz 0:7c305139fb85 346 // if (!(TDHead->Control & 0xF0000000)) {
bouaziz 0:7c305139fb85 347 if (!HOST_TDControlStatus) {
bouaziz 0:7c305139fb85 348 return (OK);
bouaziz 0:7c305139fb85 349 } else {
bouaziz 0:7c305139fb85 350 return (ERR_TD_FAIL);
bouaziz 0:7c305139fb85 351 }
bouaziz 0:7c305139fb85 352 }
bouaziz 0:7c305139fb85 353
bouaziz 0:7c305139fb85 354 /*
bouaziz 0:7c305139fb85 355 **************************************************************************************************************
bouaziz 0:7c305139fb85 356 * ENUMERATE THE DEVICE
bouaziz 0:7c305139fb85 357 *
bouaziz 0:7c305139fb85 358 * Description: This function is used to enumerate the device connected
bouaziz 0:7c305139fb85 359 *
bouaziz 0:7c305139fb85 360 * Arguments : None
bouaziz 0:7c305139fb85 361 *
bouaziz 0:7c305139fb85 362 * Returns : None
bouaziz 0:7c305139fb85 363 *
bouaziz 0:7c305139fb85 364 **************************************************************************************************************
bouaziz 0:7c305139fb85 365 */
bouaziz 0:7c305139fb85 366
bouaziz 0:7c305139fb85 367 USB_INT32S Host_EnumDev (void)
bouaziz 0:7c305139fb85 368 {
bouaziz 0:7c305139fb85 369 USB_INT32S rc;
bouaziz 0:7c305139fb85 370
bouaziz 0:7c305139fb85 371 PRINT_Log("Connect a Mass Storage device\r\n");
bouaziz 0:7c305139fb85 372 while (!HOST_RhscIntr)
bouaziz 0:7c305139fb85 373 __WFI();
bouaziz 0:7c305139fb85 374 Host_DelayMS(100); /* USB 2.0 spec says atleast 50ms delay beore port reset */
bouaziz 0:7c305139fb85 375 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS; // Initiate port reset
bouaziz 0:7c305139fb85 376 while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS)
bouaziz 0:7c305139fb85 377 __WFI(); // Wait for port reset to complete...
bouaziz 0:7c305139fb85 378 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; // ...and clear port reset signal
bouaziz 0:7c305139fb85 379 Host_DelayMS(200); /* Wait for 100 MS after port reset */
bouaziz 0:7c305139fb85 380
bouaziz 0:7c305139fb85 381 EDCtrl->Control = 8 << 16; /* Put max pkt size = 8 */
bouaziz 0:7c305139fb85 382 /* Read first 8 bytes of device desc */
bouaziz 0:7c305139fb85 383 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_DEVICE, 0, TDBuffer, 8);
bouaziz 0:7c305139fb85 384 if (rc != OK) {
bouaziz 0:7c305139fb85 385 PRINT_Err(rc);
bouaziz 0:7c305139fb85 386 return (rc);
bouaziz 0:7c305139fb85 387 }
bouaziz 0:7c305139fb85 388 EDCtrl->Control = TDBuffer[7] << 16; /* Get max pkt size of endpoint 0 */
bouaziz 0:7c305139fb85 389 rc = HOST_SET_ADDRESS(1); /* Set the device address to 1 */
bouaziz 0:7c305139fb85 390 if (rc != OK) {
bouaziz 0:7c305139fb85 391 PRINT_Err(rc);
bouaziz 0:7c305139fb85 392 return (rc);
bouaziz 0:7c305139fb85 393 }
bouaziz 0:7c305139fb85 394 Host_DelayMS(2);
bouaziz 0:7c305139fb85 395 EDCtrl->Control = (EDCtrl->Control) | 1; /* Modify control pipe with address 1 */
bouaziz 0:7c305139fb85 396 /* Get the configuration descriptor */
bouaziz 0:7c305139fb85 397 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, 9);
bouaziz 0:7c305139fb85 398 if (rc != OK) {
bouaziz 0:7c305139fb85 399 PRINT_Err(rc);
bouaziz 0:7c305139fb85 400 return (rc);
bouaziz 0:7c305139fb85 401 }
bouaziz 0:7c305139fb85 402 /* Get the first configuration data */
bouaziz 0:7c305139fb85 403 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, ReadLE16U(&TDBuffer[2]));
bouaziz 0:7c305139fb85 404 if (rc != OK) {
bouaziz 0:7c305139fb85 405 PRINT_Err(rc);
bouaziz 0:7c305139fb85 406 return (rc);
bouaziz 0:7c305139fb85 407 }
bouaziz 0:7c305139fb85 408 rc = MS_ParseConfiguration(); /* Parse the configuration */
bouaziz 0:7c305139fb85 409 if (rc != OK) {
bouaziz 0:7c305139fb85 410 PRINT_Err(rc);
bouaziz 0:7c305139fb85 411 return (rc);
bouaziz 0:7c305139fb85 412 }
bouaziz 0:7c305139fb85 413 rc = USBH_SET_CONFIGURATION(1); /* Select device configuration 1 */
bouaziz 0:7c305139fb85 414 if (rc != OK) {
bouaziz 0:7c305139fb85 415 PRINT_Err(rc);
bouaziz 0:7c305139fb85 416 }
bouaziz 0:7c305139fb85 417 Host_DelayMS(100); /* Some devices may require this delay */
bouaziz 0:7c305139fb85 418 return (rc);
bouaziz 0:7c305139fb85 419 }
bouaziz 0:7c305139fb85 420
bouaziz 0:7c305139fb85 421 /*
bouaziz 0:7c305139fb85 422 **************************************************************************************************************
bouaziz 0:7c305139fb85 423 * RECEIVE THE CONTROL INFORMATION
bouaziz 0:7c305139fb85 424 *
bouaziz 0:7c305139fb85 425 * Description: This function is used to receive the control information
bouaziz 0:7c305139fb85 426 *
bouaziz 0:7c305139fb85 427 * Arguments : bm_request_type
bouaziz 0:7c305139fb85 428 * b_request
bouaziz 0:7c305139fb85 429 * w_value
bouaziz 0:7c305139fb85 430 * w_index
bouaziz 0:7c305139fb85 431 * w_length
bouaziz 0:7c305139fb85 432 * buffer
bouaziz 0:7c305139fb85 433 *
bouaziz 0:7c305139fb85 434 * Returns : OK if Success
bouaziz 0:7c305139fb85 435 * ERROR if Failed
bouaziz 0:7c305139fb85 436 *
bouaziz 0:7c305139fb85 437 **************************************************************************************************************
bouaziz 0:7c305139fb85 438 */
bouaziz 0:7c305139fb85 439
bouaziz 0:7c305139fb85 440 USB_INT32S Host_CtrlRecv ( USB_INT08U bm_request_type,
bouaziz 0:7c305139fb85 441 USB_INT08U b_request,
bouaziz 0:7c305139fb85 442 USB_INT16U w_value,
bouaziz 0:7c305139fb85 443 USB_INT16U w_index,
bouaziz 0:7c305139fb85 444 USB_INT16U w_length,
bouaziz 0:7c305139fb85 445 volatile USB_INT08U *buffer)
bouaziz 0:7c305139fb85 446 {
bouaziz 0:7c305139fb85 447 USB_INT32S rc;
bouaziz 0:7c305139fb85 448
bouaziz 0:7c305139fb85 449
bouaziz 0:7c305139fb85 450 Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
bouaziz 0:7c305139fb85 451 rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
bouaziz 0:7c305139fb85 452 if (rc == OK) {
bouaziz 0:7c305139fb85 453 if (w_length) {
bouaziz 0:7c305139fb85 454 rc = Host_ProcessTD(EDCtrl, TD_IN, TDBuffer, w_length);
bouaziz 0:7c305139fb85 455 }
bouaziz 0:7c305139fb85 456 if (rc == OK) {
bouaziz 0:7c305139fb85 457 rc = Host_ProcessTD(EDCtrl, TD_OUT, NULL, 0);
bouaziz 0:7c305139fb85 458 }
bouaziz 0:7c305139fb85 459 }
bouaziz 0:7c305139fb85 460 return (rc);
bouaziz 0:7c305139fb85 461 }
bouaziz 0:7c305139fb85 462
bouaziz 0:7c305139fb85 463 /*
bouaziz 0:7c305139fb85 464 **************************************************************************************************************
bouaziz 0:7c305139fb85 465 * SEND THE CONTROL INFORMATION
bouaziz 0:7c305139fb85 466 *
bouaziz 0:7c305139fb85 467 * Description: This function is used to send the control information
bouaziz 0:7c305139fb85 468 *
bouaziz 0:7c305139fb85 469 * Arguments : None
bouaziz 0:7c305139fb85 470 *
bouaziz 0:7c305139fb85 471 * Returns : OK if Success
bouaziz 0:7c305139fb85 472 * ERR_INVALID_BOOTSIG if Failed
bouaziz 0:7c305139fb85 473 *
bouaziz 0:7c305139fb85 474 **************************************************************************************************************
bouaziz 0:7c305139fb85 475 */
bouaziz 0:7c305139fb85 476
bouaziz 0:7c305139fb85 477 USB_INT32S Host_CtrlSend ( USB_INT08U bm_request_type,
bouaziz 0:7c305139fb85 478 USB_INT08U b_request,
bouaziz 0:7c305139fb85 479 USB_INT16U w_value,
bouaziz 0:7c305139fb85 480 USB_INT16U w_index,
bouaziz 0:7c305139fb85 481 USB_INT16U w_length,
bouaziz 0:7c305139fb85 482 volatile USB_INT08U *buffer)
bouaziz 0:7c305139fb85 483 {
bouaziz 0:7c305139fb85 484 USB_INT32S rc;
bouaziz 0:7c305139fb85 485
bouaziz 0:7c305139fb85 486
bouaziz 0:7c305139fb85 487 Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
bouaziz 0:7c305139fb85 488
bouaziz 0:7c305139fb85 489 rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
bouaziz 0:7c305139fb85 490 if (rc == OK) {
bouaziz 0:7c305139fb85 491 if (w_length) {
bouaziz 0:7c305139fb85 492 rc = Host_ProcessTD(EDCtrl, TD_OUT, TDBuffer, w_length);
bouaziz 0:7c305139fb85 493 }
bouaziz 0:7c305139fb85 494 if (rc == OK) {
bouaziz 0:7c305139fb85 495 rc = Host_ProcessTD(EDCtrl, TD_IN, NULL, 0);
bouaziz 0:7c305139fb85 496 }
bouaziz 0:7c305139fb85 497 }
bouaziz 0:7c305139fb85 498 return (rc);
bouaziz 0:7c305139fb85 499 }
bouaziz 0:7c305139fb85 500
bouaziz 0:7c305139fb85 501 /*
bouaziz 0:7c305139fb85 502 **************************************************************************************************************
bouaziz 0:7c305139fb85 503 * FILL SETUP PACKET
bouaziz 0:7c305139fb85 504 *
bouaziz 0:7c305139fb85 505 * Description: This function is used to fill the setup packet
bouaziz 0:7c305139fb85 506 *
bouaziz 0:7c305139fb85 507 * Arguments : None
bouaziz 0:7c305139fb85 508 *
bouaziz 0:7c305139fb85 509 * Returns : OK if Success
bouaziz 0:7c305139fb85 510 * ERR_INVALID_BOOTSIG if Failed
bouaziz 0:7c305139fb85 511 *
bouaziz 0:7c305139fb85 512 **************************************************************************************************************
bouaziz 0:7c305139fb85 513 */
bouaziz 0:7c305139fb85 514
bouaziz 0:7c305139fb85 515 void Host_FillSetup (USB_INT08U bm_request_type,
bouaziz 0:7c305139fb85 516 USB_INT08U b_request,
bouaziz 0:7c305139fb85 517 USB_INT16U w_value,
bouaziz 0:7c305139fb85 518 USB_INT16U w_index,
bouaziz 0:7c305139fb85 519 USB_INT16U w_length)
bouaziz 0:7c305139fb85 520 {
bouaziz 0:7c305139fb85 521 int i;
bouaziz 0:7c305139fb85 522 for (i=0;i<w_length;i++)
bouaziz 0:7c305139fb85 523 TDBuffer[i] = 0;
bouaziz 0:7c305139fb85 524
bouaziz 0:7c305139fb85 525 TDBuffer[0] = bm_request_type;
bouaziz 0:7c305139fb85 526 TDBuffer[1] = b_request;
bouaziz 0:7c305139fb85 527 WriteLE16U(&TDBuffer[2], w_value);
bouaziz 0:7c305139fb85 528 WriteLE16U(&TDBuffer[4], w_index);
bouaziz 0:7c305139fb85 529 WriteLE16U(&TDBuffer[6], w_length);
bouaziz 0:7c305139fb85 530 }
bouaziz 0:7c305139fb85 531
bouaziz 0:7c305139fb85 532
bouaziz 0:7c305139fb85 533
bouaziz 0:7c305139fb85 534 /*
bouaziz 0:7c305139fb85 535 **************************************************************************************************************
bouaziz 0:7c305139fb85 536 * INITIALIZE THE TRANSFER DESCRIPTOR
bouaziz 0:7c305139fb85 537 *
bouaziz 0:7c305139fb85 538 * Description: This function initializes transfer descriptor
bouaziz 0:7c305139fb85 539 *
bouaziz 0:7c305139fb85 540 * Arguments : Pointer to TD structure
bouaziz 0:7c305139fb85 541 *
bouaziz 0:7c305139fb85 542 * Returns : None
bouaziz 0:7c305139fb85 543 *
bouaziz 0:7c305139fb85 544 **************************************************************************************************************
bouaziz 0:7c305139fb85 545 */
bouaziz 0:7c305139fb85 546
bouaziz 0:7c305139fb85 547 void Host_TDInit (volatile HCTD *td)
bouaziz 0:7c305139fb85 548 {
bouaziz 0:7c305139fb85 549
bouaziz 0:7c305139fb85 550 td->Control = 0;
bouaziz 0:7c305139fb85 551 td->CurrBufPtr = 0;
bouaziz 0:7c305139fb85 552 td->Next = 0;
bouaziz 0:7c305139fb85 553 td->BufEnd = 0;
bouaziz 0:7c305139fb85 554 }
bouaziz 0:7c305139fb85 555
bouaziz 0:7c305139fb85 556 /*
bouaziz 0:7c305139fb85 557 **************************************************************************************************************
bouaziz 0:7c305139fb85 558 * INITIALIZE THE ENDPOINT DESCRIPTOR
bouaziz 0:7c305139fb85 559 *
bouaziz 0:7c305139fb85 560 * Description: This function initializes endpoint descriptor
bouaziz 0:7c305139fb85 561 *
bouaziz 0:7c305139fb85 562 * Arguments : Pointer to ED strcuture
bouaziz 0:7c305139fb85 563 *
bouaziz 0:7c305139fb85 564 * Returns : None
bouaziz 0:7c305139fb85 565 *
bouaziz 0:7c305139fb85 566 **************************************************************************************************************
bouaziz 0:7c305139fb85 567 */
bouaziz 0:7c305139fb85 568
bouaziz 0:7c305139fb85 569 void Host_EDInit (volatile HCED *ed)
bouaziz 0:7c305139fb85 570 {
bouaziz 0:7c305139fb85 571
bouaziz 0:7c305139fb85 572 ed->Control = 0;
bouaziz 0:7c305139fb85 573 ed->TailTd = 0;
bouaziz 0:7c305139fb85 574 ed->HeadTd = 0;
bouaziz 0:7c305139fb85 575 ed->Next = 0;
bouaziz 0:7c305139fb85 576 }
bouaziz 0:7c305139fb85 577
bouaziz 0:7c305139fb85 578 /*
bouaziz 0:7c305139fb85 579 **************************************************************************************************************
bouaziz 0:7c305139fb85 580 * INITIALIZE HOST CONTROLLER COMMUNICATIONS AREA
bouaziz 0:7c305139fb85 581 *
bouaziz 0:7c305139fb85 582 * Description: This function initializes host controller communications area
bouaziz 0:7c305139fb85 583 *
bouaziz 0:7c305139fb85 584 * Arguments : Pointer to HCCA
bouaziz 0:7c305139fb85 585 *
bouaziz 0:7c305139fb85 586 * Returns :
bouaziz 0:7c305139fb85 587 *
bouaziz 0:7c305139fb85 588 **************************************************************************************************************
bouaziz 0:7c305139fb85 589 */
bouaziz 0:7c305139fb85 590
bouaziz 0:7c305139fb85 591 void Host_HCCAInit (volatile HCCA *hcca)
bouaziz 0:7c305139fb85 592 {
bouaziz 0:7c305139fb85 593 USB_INT32U i;
bouaziz 0:7c305139fb85 594
bouaziz 0:7c305139fb85 595
bouaziz 0:7c305139fb85 596 for (i = 0; i < 32; i++) {
bouaziz 0:7c305139fb85 597
bouaziz 0:7c305139fb85 598 hcca->IntTable[i] = 0;
bouaziz 0:7c305139fb85 599 hcca->FrameNumber = 0;
bouaziz 0:7c305139fb85 600 hcca->DoneHead = 0;
bouaziz 0:7c305139fb85 601 }
bouaziz 0:7c305139fb85 602
bouaziz 0:7c305139fb85 603 }
bouaziz 0:7c305139fb85 604
bouaziz 0:7c305139fb85 605 /*
bouaziz 0:7c305139fb85 606 **************************************************************************************************************
bouaziz 0:7c305139fb85 607 * WAIT FOR WDH INTERRUPT
bouaziz 0:7c305139fb85 608 *
bouaziz 0:7c305139fb85 609 * Description: This function is infinite loop which breaks when ever a WDH interrupt rises
bouaziz 0:7c305139fb85 610 *
bouaziz 0:7c305139fb85 611 * Arguments : None
bouaziz 0:7c305139fb85 612 *
bouaziz 0:7c305139fb85 613 * Returns : None
bouaziz 0:7c305139fb85 614 *
bouaziz 0:7c305139fb85 615 **************************************************************************************************************
bouaziz 0:7c305139fb85 616 */
bouaziz 0:7c305139fb85 617
bouaziz 0:7c305139fb85 618 void Host_WDHWait (void)
bouaziz 0:7c305139fb85 619 {
bouaziz 0:7c305139fb85 620 while (!HOST_WdhIntr)
bouaziz 0:7c305139fb85 621 __WFI();
bouaziz 0:7c305139fb85 622
bouaziz 0:7c305139fb85 623 HOST_WdhIntr = 0;
bouaziz 0:7c305139fb85 624 }
bouaziz 0:7c305139fb85 625
bouaziz 0:7c305139fb85 626 /*
bouaziz 0:7c305139fb85 627 **************************************************************************************************************
bouaziz 0:7c305139fb85 628 * READ LE 32U
bouaziz 0:7c305139fb85 629 *
bouaziz 0:7c305139fb85 630 * Description: This function is used to read an unsigned integer from a character buffer in the platform
bouaziz 0:7c305139fb85 631 * containing little endian processor
bouaziz 0:7c305139fb85 632 *
bouaziz 0:7c305139fb85 633 * Arguments : pmem Pointer to the character buffer
bouaziz 0:7c305139fb85 634 *
bouaziz 0:7c305139fb85 635 * Returns : val Unsigned integer
bouaziz 0:7c305139fb85 636 *
bouaziz 0:7c305139fb85 637 **************************************************************************************************************
bouaziz 0:7c305139fb85 638 */
bouaziz 0:7c305139fb85 639
bouaziz 0:7c305139fb85 640 USB_INT32U ReadLE32U (volatile USB_INT08U *pmem)
bouaziz 0:7c305139fb85 641 {
bouaziz 0:7c305139fb85 642 USB_INT32U val = *(USB_INT32U*)pmem;
bouaziz 0:7c305139fb85 643 #ifdef __BIG_ENDIAN
bouaziz 0:7c305139fb85 644 return __REV(val);
bouaziz 0:7c305139fb85 645 #else
bouaziz 0:7c305139fb85 646 return val;
bouaziz 0:7c305139fb85 647 #endif
bouaziz 0:7c305139fb85 648 }
bouaziz 0:7c305139fb85 649
bouaziz 0:7c305139fb85 650 /*
bouaziz 0:7c305139fb85 651 **************************************************************************************************************
bouaziz 0:7c305139fb85 652 * WRITE LE 32U
bouaziz 0:7c305139fb85 653 *
bouaziz 0:7c305139fb85 654 * Description: This function is used to write an unsigned integer into a charecter buffer in the platform
bouaziz 0:7c305139fb85 655 * containing little endian processor.
bouaziz 0:7c305139fb85 656 *
bouaziz 0:7c305139fb85 657 * Arguments : pmem Pointer to the charecter buffer
bouaziz 0:7c305139fb85 658 * val Integer value to be placed in the charecter buffer
bouaziz 0:7c305139fb85 659 *
bouaziz 0:7c305139fb85 660 * Returns : None
bouaziz 0:7c305139fb85 661 *
bouaziz 0:7c305139fb85 662 **************************************************************************************************************
bouaziz 0:7c305139fb85 663 */
bouaziz 0:7c305139fb85 664
bouaziz 0:7c305139fb85 665 void WriteLE32U (volatile USB_INT08U *pmem,
bouaziz 0:7c305139fb85 666 USB_INT32U val)
bouaziz 0:7c305139fb85 667 {
bouaziz 0:7c305139fb85 668 #ifdef __BIG_ENDIAN
bouaziz 0:7c305139fb85 669 *(USB_INT32U*)pmem = __REV(val);
bouaziz 0:7c305139fb85 670 #else
bouaziz 0:7c305139fb85 671 *(USB_INT32U*)pmem = val;
bouaziz 0:7c305139fb85 672 #endif
bouaziz 0:7c305139fb85 673 }
bouaziz 0:7c305139fb85 674
bouaziz 0:7c305139fb85 675 /*
bouaziz 0:7c305139fb85 676 **************************************************************************************************************
bouaziz 0:7c305139fb85 677 * READ LE 16U
bouaziz 0:7c305139fb85 678 *
bouaziz 0:7c305139fb85 679 * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
bouaziz 0:7c305139fb85 680 * containing little endian processor
bouaziz 0:7c305139fb85 681 *
bouaziz 0:7c305139fb85 682 * Arguments : pmem Pointer to the charecter buffer
bouaziz 0:7c305139fb85 683 *
bouaziz 0:7c305139fb85 684 * Returns : val Unsigned short integer
bouaziz 0:7c305139fb85 685 *
bouaziz 0:7c305139fb85 686 **************************************************************************************************************
bouaziz 0:7c305139fb85 687 */
bouaziz 0:7c305139fb85 688
bouaziz 0:7c305139fb85 689 USB_INT16U ReadLE16U (volatile USB_INT08U *pmem)
bouaziz 0:7c305139fb85 690 {
bouaziz 0:7c305139fb85 691 USB_INT16U val = *(USB_INT16U*)pmem;
bouaziz 0:7c305139fb85 692 #ifdef __BIG_ENDIAN
bouaziz 0:7c305139fb85 693 return __REV16(val);
bouaziz 0:7c305139fb85 694 #else
bouaziz 0:7c305139fb85 695 return val;
bouaziz 0:7c305139fb85 696 #endif
bouaziz 0:7c305139fb85 697 }
bouaziz 0:7c305139fb85 698
bouaziz 0:7c305139fb85 699 /*
bouaziz 0:7c305139fb85 700 **************************************************************************************************************
bouaziz 0:7c305139fb85 701 * WRITE LE 16U
bouaziz 0:7c305139fb85 702 *
bouaziz 0:7c305139fb85 703 * Description: This function is used to write an unsigned short integer into a charecter buffer in the
bouaziz 0:7c305139fb85 704 * platform containing little endian processor
bouaziz 0:7c305139fb85 705 *
bouaziz 0:7c305139fb85 706 * Arguments : pmem Pointer to the charecter buffer
bouaziz 0:7c305139fb85 707 * val Value to be placed in the charecter buffer
bouaziz 0:7c305139fb85 708 *
bouaziz 0:7c305139fb85 709 * Returns : None
bouaziz 0:7c305139fb85 710 *
bouaziz 0:7c305139fb85 711 **************************************************************************************************************
bouaziz 0:7c305139fb85 712 */
bouaziz 0:7c305139fb85 713
bouaziz 0:7c305139fb85 714 void WriteLE16U (volatile USB_INT08U *pmem,
bouaziz 0:7c305139fb85 715 USB_INT16U val)
bouaziz 0:7c305139fb85 716 {
bouaziz 0:7c305139fb85 717 #ifdef __BIG_ENDIAN
bouaziz 0:7c305139fb85 718 *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF);
bouaziz 0:7c305139fb85 719 #else
bouaziz 0:7c305139fb85 720 *(USB_INT16U*)pmem = val;
bouaziz 0:7c305139fb85 721 #endif
bouaziz 0:7c305139fb85 722 }
bouaziz 0:7c305139fb85 723
bouaziz 0:7c305139fb85 724 /*
bouaziz 0:7c305139fb85 725 **************************************************************************************************************
bouaziz 0:7c305139fb85 726 * READ BE 32U
bouaziz 0:7c305139fb85 727 *
bouaziz 0:7c305139fb85 728 * Description: This function is used to read an unsigned integer from a charecter buffer in the platform
bouaziz 0:7c305139fb85 729 * containing big endian processor
bouaziz 0:7c305139fb85 730 *
bouaziz 0:7c305139fb85 731 * Arguments : pmem Pointer to the charecter buffer
bouaziz 0:7c305139fb85 732 *
bouaziz 0:7c305139fb85 733 * Returns : val Unsigned integer
bouaziz 0:7c305139fb85 734 *
bouaziz 0:7c305139fb85 735 **************************************************************************************************************
bouaziz 0:7c305139fb85 736 */
bouaziz 0:7c305139fb85 737
bouaziz 0:7c305139fb85 738 USB_INT32U ReadBE32U (volatile USB_INT08U *pmem)
bouaziz 0:7c305139fb85 739 {
bouaziz 0:7c305139fb85 740 USB_INT32U val = *(USB_INT32U*)pmem;
bouaziz 0:7c305139fb85 741 #ifdef __BIG_ENDIAN
bouaziz 0:7c305139fb85 742 return val;
bouaziz 0:7c305139fb85 743 #else
bouaziz 0:7c305139fb85 744 return __REV(val);
bouaziz 0:7c305139fb85 745 #endif
bouaziz 0:7c305139fb85 746 }
bouaziz 0:7c305139fb85 747
bouaziz 0:7c305139fb85 748 /*
bouaziz 0:7c305139fb85 749 **************************************************************************************************************
bouaziz 0:7c305139fb85 750 * WRITE BE 32U
bouaziz 0:7c305139fb85 751 *
bouaziz 0:7c305139fb85 752 * Description: This function is used to write an unsigned integer into a charecter buffer in the platform
bouaziz 0:7c305139fb85 753 * containing big endian processor
bouaziz 0:7c305139fb85 754 *
bouaziz 0:7c305139fb85 755 * Arguments : pmem Pointer to the charecter buffer
bouaziz 0:7c305139fb85 756 * val Value to be placed in the charecter buffer
bouaziz 0:7c305139fb85 757 *
bouaziz 0:7c305139fb85 758 * Returns : None
bouaziz 0:7c305139fb85 759 *
bouaziz 0:7c305139fb85 760 **************************************************************************************************************
bouaziz 0:7c305139fb85 761 */
bouaziz 0:7c305139fb85 762
bouaziz 0:7c305139fb85 763 void WriteBE32U (volatile USB_INT08U *pmem,
bouaziz 0:7c305139fb85 764 USB_INT32U val)
bouaziz 0:7c305139fb85 765 {
bouaziz 0:7c305139fb85 766 #ifdef __BIG_ENDIAN
bouaziz 0:7c305139fb85 767 *(USB_INT32U*)pmem = val;
bouaziz 0:7c305139fb85 768 #else
bouaziz 0:7c305139fb85 769 *(USB_INT32U*)pmem = __REV(val);
bouaziz 0:7c305139fb85 770 #endif
bouaziz 0:7c305139fb85 771 }
bouaziz 0:7c305139fb85 772
bouaziz 0:7c305139fb85 773 /*
bouaziz 0:7c305139fb85 774 **************************************************************************************************************
bouaziz 0:7c305139fb85 775 * READ BE 16U
bouaziz 0:7c305139fb85 776 *
bouaziz 0:7c305139fb85 777 * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
bouaziz 0:7c305139fb85 778 * containing big endian processor
bouaziz 0:7c305139fb85 779 *
bouaziz 0:7c305139fb85 780 * Arguments : pmem Pointer to the charecter buffer
bouaziz 0:7c305139fb85 781 *
bouaziz 0:7c305139fb85 782 * Returns : val Unsigned short integer
bouaziz 0:7c305139fb85 783 *
bouaziz 0:7c305139fb85 784 **************************************************************************************************************
bouaziz 0:7c305139fb85 785 */
bouaziz 0:7c305139fb85 786
bouaziz 0:7c305139fb85 787 USB_INT16U ReadBE16U (volatile USB_INT08U *pmem)
bouaziz 0:7c305139fb85 788 {
bouaziz 0:7c305139fb85 789 USB_INT16U val = *(USB_INT16U*)pmem;
bouaziz 0:7c305139fb85 790 #ifdef __BIG_ENDIAN
bouaziz 0:7c305139fb85 791 return val;
bouaziz 0:7c305139fb85 792 #else
bouaziz 0:7c305139fb85 793 return __REV16(val);
bouaziz 0:7c305139fb85 794 #endif
bouaziz 0:7c305139fb85 795 }
bouaziz 0:7c305139fb85 796
bouaziz 0:7c305139fb85 797 /*
bouaziz 0:7c305139fb85 798 **************************************************************************************************************
bouaziz 0:7c305139fb85 799 * WRITE BE 16U
bouaziz 0:7c305139fb85 800 *
bouaziz 0:7c305139fb85 801 * Description: This function is used to write an unsigned short integer into the charecter buffer in the
bouaziz 0:7c305139fb85 802 * platform containing big endian processor
bouaziz 0:7c305139fb85 803 *
bouaziz 0:7c305139fb85 804 * Arguments : pmem Pointer to the charecter buffer
bouaziz 0:7c305139fb85 805 * val Value to be placed in the charecter buffer
bouaziz 0:7c305139fb85 806 *
bouaziz 0:7c305139fb85 807 * Returns : None
bouaziz 0:7c305139fb85 808 *
bouaziz 0:7c305139fb85 809 **************************************************************************************************************
bouaziz 0:7c305139fb85 810 */
bouaziz 0:7c305139fb85 811
bouaziz 0:7c305139fb85 812 void WriteBE16U (volatile USB_INT08U *pmem,
bouaziz 0:7c305139fb85 813 USB_INT16U val)
bouaziz 0:7c305139fb85 814 {
bouaziz 0:7c305139fb85 815 #ifdef __BIG_ENDIAN
bouaziz 0:7c305139fb85 816 *(USB_INT16U*)pmem = val;
bouaziz 0:7c305139fb85 817 #else
bouaziz 0:7c305139fb85 818 *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF);
bouaziz 0:7c305139fb85 819 #endif
bouaziz 0:7c305139fb85 820 }