Koichi Kikkawa / Mbed 2 deprecated Monitor20210726_ver1

Monitor20210726_ver1 add_im920

Dependencies:   mbed SB1602E TextLCD MSCFILESytem FatFileSystemCpp

USBmemory/USBHostLite/usbhost_lpc17xx.cpp@3:fc42787d68a6, 2021-07-26 (annotated)

Committer:
MPPT51
Date:
Mon Jul 26 05:53:49 2021 +0000
Revision:
3:fc42787d68a6
Parent:
1:93775378e5d9 
210726_commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MPPT51 1:93775378e5d9 1 /*
MPPT51 1:93775378e5d9 2 **************************************************************************************************************
MPPT51 1:93775378e5d9 3 * NXP USB Host Stack
MPPT51 1:93775378e5d9 4 *
MPPT51 1:93775378e5d9 5 * (c) Copyright 2008, NXP SemiConductors
MPPT51 1:93775378e5d9 6 * (c) Copyright 2008, OnChip Technologies LLC
MPPT51 1:93775378e5d9 7 * All Rights Reserved
MPPT51 1:93775378e5d9 8 *
MPPT51 1:93775378e5d9 9 * www.nxp.com
MPPT51 1:93775378e5d9 10 * www.onchiptech.com
MPPT51 1:93775378e5d9 11 *
MPPT51 1:93775378e5d9 12 * File : usbhost_lpc17xx.c
MPPT51 1:93775378e5d9 13 * Programmer(s) : Ravikanth.P
MPPT51 1:93775378e5d9 14 * Version :
MPPT51 1:93775378e5d9 15 *
MPPT51 1:93775378e5d9 16 **************************************************************************************************************
MPPT51 1:93775378e5d9 17 */
MPPT51 1:93775378e5d9 18
MPPT51 1:93775378e5d9 19 /*
MPPT51 1:93775378e5d9 20 **************************************************************************************************************
MPPT51 1:93775378e5d9 21 * INCLUDE HEADER FILES
MPPT51 1:93775378e5d9 22 **************************************************************************************************************
MPPT51 1:93775378e5d9 23 */
MPPT51 1:93775378e5d9 24
MPPT51 1:93775378e5d9 25 #include "usbhost_lpc17xx.h"
MPPT51 1:93775378e5d9 26
MPPT51 1:93775378e5d9 27 /*
MPPT51 1:93775378e5d9 28 **************************************************************************************************************
MPPT51 1:93775378e5d9 29 * GLOBAL VARIABLES
MPPT51 1:93775378e5d9 30 **************************************************************************************************************
MPPT51 1:93775378e5d9 31 */
MPPT51 1:93775378e5d9 32 int gUSBConnected;
MPPT51 1:93775378e5d9 33
MPPT51 1:93775378e5d9 34 volatile USB_INT32U HOST_RhscIntr = 0; /* Root Hub Status Change interrupt */
MPPT51 1:93775378e5d9 35 volatile USB_INT32U HOST_WdhIntr = 0; /* Semaphore to wait until the TD is submitted */
MPPT51 1:93775378e5d9 36 volatile USB_INT08U HOST_TDControlStatus = 0;
MPPT51 1:93775378e5d9 37 volatile HCED *EDCtrl; /* Control endpoint descriptor structure */
MPPT51 1:93775378e5d9 38 volatile HCED *EDBulkIn; /* BulkIn endpoint descriptor structure */
MPPT51 1:93775378e5d9 39 volatile HCED *EDBulkOut; /* BulkOut endpoint descriptor structure */
MPPT51 1:93775378e5d9 40 volatile HCTD *TDHead; /* Head transfer descriptor structure */
MPPT51 1:93775378e5d9 41 volatile HCTD *TDTail; /* Tail transfer descriptor structure */
MPPT51 1:93775378e5d9 42 volatile HCCA *Hcca; /* Host Controller Communications Area structure */
MPPT51 1:93775378e5d9 43 USB_INT16U *TDBufNonVol; /* Identical to TDBuffer just to reduce compiler warnings */
MPPT51 1:93775378e5d9 44 volatile USB_INT08U *TDBuffer; /* Current Buffer Pointer of transfer descriptor */
MPPT51 1:93775378e5d9 45
MPPT51 1:93775378e5d9 46 // USB host structures
MPPT51 1:93775378e5d9 47 // AHB SRAM block 1
MPPT51 1:93775378e5d9 48 #define HOSTBASEADDR 0x2007C000
MPPT51 1:93775378e5d9 49 // reserve memory for the linker
MPPT51 1:93775378e5d9 50 static USB_INT08U HostBuf[0x200] __attribute__((at(HOSTBASEADDR)));
MPPT51 1:93775378e5d9 51 /*
MPPT51 1:93775378e5d9 52 **************************************************************************************************************
MPPT51 1:93775378e5d9 53 * DELAY IN MILLI SECONDS
MPPT51 1:93775378e5d9 54 *
MPPT51 1:93775378e5d9 55 * Description: This function provides a delay in milli seconds
MPPT51 1:93775378e5d9 56 *
MPPT51 1:93775378e5d9 57 * Arguments : delay The delay required
MPPT51 1:93775378e5d9 58 *
MPPT51 1:93775378e5d9 59 * Returns : None
MPPT51 1:93775378e5d9 60 *
MPPT51 1:93775378e5d9 61 **************************************************************************************************************
MPPT51 1:93775378e5d9 62 */
MPPT51 1:93775378e5d9 63
MPPT51 1:93775378e5d9 64 void Host_DelayMS (USB_INT32U delay)
MPPT51 1:93775378e5d9 65 {
MPPT51 1:93775378e5d9 66 volatile USB_INT32U i;
MPPT51 1:93775378e5d9 67
MPPT51 1:93775378e5d9 68
MPPT51 1:93775378e5d9 69 for (i = 0; i < delay; i++) {
MPPT51 1:93775378e5d9 70 Host_DelayUS(1000);
MPPT51 1:93775378e5d9 71 }
MPPT51 1:93775378e5d9 72 }
MPPT51 1:93775378e5d9 73
MPPT51 1:93775378e5d9 74 /*
MPPT51 1:93775378e5d9 75 **************************************************************************************************************
MPPT51 1:93775378e5d9 76 * DELAY IN MICRO SECONDS
MPPT51 1:93775378e5d9 77 *
MPPT51 1:93775378e5d9 78 * Description: This function provides a delay in micro seconds
MPPT51 1:93775378e5d9 79 *
MPPT51 1:93775378e5d9 80 * Arguments : delay The delay required
MPPT51 1:93775378e5d9 81 *
MPPT51 1:93775378e5d9 82 * Returns : None
MPPT51 1:93775378e5d9 83 *
MPPT51 1:93775378e5d9 84 **************************************************************************************************************
MPPT51 1:93775378e5d9 85 */
MPPT51 1:93775378e5d9 86
MPPT51 1:93775378e5d9 87 void Host_DelayUS (USB_INT32U delay)
MPPT51 1:93775378e5d9 88 {
MPPT51 1:93775378e5d9 89 volatile USB_INT32U i;
MPPT51 1:93775378e5d9 90
MPPT51 1:93775378e5d9 91
MPPT51 1:93775378e5d9 92 for (i = 0; i < (4 * delay); i++) { /* This logic was tested. It gives app. 1 micro sec delay */
MPPT51 1:93775378e5d9 93 ;
MPPT51 1:93775378e5d9 94 }
MPPT51 1:93775378e5d9 95 }
MPPT51 1:93775378e5d9 96
MPPT51 1:93775378e5d9 97 // bits of the USB/OTG clock control register
MPPT51 1:93775378e5d9 98 #define HOST_CLK_EN (1<<0)
MPPT51 1:93775378e5d9 99 #define DEV_CLK_EN (1<<1)
MPPT51 1:93775378e5d9 100 #define PORTSEL_CLK_EN (1<<3)
MPPT51 1:93775378e5d9 101 #define AHB_CLK_EN (1<<4)
MPPT51 1:93775378e5d9 102
MPPT51 1:93775378e5d9 103 // bits of the USB/OTG clock status register
MPPT51 1:93775378e5d9 104 #define HOST_CLK_ON (1<<0)
MPPT51 1:93775378e5d9 105 #define DEV_CLK_ON (1<<1)
MPPT51 1:93775378e5d9 106 #define PORTSEL_CLK_ON (1<<3)
MPPT51 1:93775378e5d9 107 #define AHB_CLK_ON (1<<4)
MPPT51 1:93775378e5d9 108
MPPT51 1:93775378e5d9 109 // we need host clock, OTG/portsel clock and AHB clock
MPPT51 1:93775378e5d9 110 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
MPPT51 1:93775378e5d9 111
MPPT51 1:93775378e5d9 112 /*
MPPT51 1:93775378e5d9 113 **************************************************************************************************************
MPPT51 1:93775378e5d9 114 * INITIALIZE THE HOST CONTROLLER
MPPT51 1:93775378e5d9 115 *
MPPT51 1:93775378e5d9 116 * Description: This function initializes lpc17xx host controller
MPPT51 1:93775378e5d9 117 *
MPPT51 1:93775378e5d9 118 * Arguments : None
MPPT51 1:93775378e5d9 119 *
MPPT51 1:93775378e5d9 120 * Returns :
MPPT51 1:93775378e5d9 121 *
MPPT51 1:93775378e5d9 122 **************************************************************************************************************
MPPT51 1:93775378e5d9 123 */
MPPT51 1:93775378e5d9 124 void Host_Init (void)
MPPT51 1:93775378e5d9 125 {
MPPT51 1:93775378e5d9 126 PRINT_Log("In Host_Init\n\r");
MPPT51 1:93775378e5d9 127 NVIC_DisableIRQ(USB_IRQn); /* Disable the USB interrupt source */
MPPT51 1:93775378e5d9 128
MPPT51 1:93775378e5d9 129 // turn on power for USB
MPPT51 1:93775378e5d9 130 LPC_SC->PCONP |= (1UL<<31);
MPPT51 1:93775378e5d9 131 // Enable USB host clock, port selection and AHB clock
MPPT51 1:93775378e5d9 132 LPC_USB->USBClkCtrl |= CLOCK_MASK;
MPPT51 1:93775378e5d9 133 // Wait for clocks to become available
MPPT51 1:93775378e5d9 134 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
MPPT51 1:93775378e5d9 135 ;
MPPT51 1:93775378e5d9 136
MPPT51 1:93775378e5d9 137 // it seems the bits[0:1] mean the following
MPPT51 1:93775378e5d9 138 // 0: U1=device, U2=host
MPPT51 1:93775378e5d9 139 // 1: U1=host, U2=host
MPPT51 1:93775378e5d9 140 // 2: reserved
MPPT51 1:93775378e5d9 141 // 3: U1=host, U2=device
MPPT51 1:93775378e5d9 142 // NB: this register is only available if OTG clock (aka "port select") is enabled!!
MPPT51 1:93775378e5d9 143 // since we don't care about port 2, set just bit 0 to 1 (U1=host)
MPPT51 1:93775378e5d9 144 LPC_USB->OTGStCtrl |= 1;
MPPT51 1:93775378e5d9 145
MPPT51 1:93775378e5d9 146 // now that we've configured the ports, we can turn off the portsel clock
MPPT51 1:93775378e5d9 147 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN;
MPPT51 1:93775378e5d9 148
MPPT51 1:93775378e5d9 149 // power pins are not connected on mbed, so we can skip them
MPPT51 1:93775378e5d9 150 /* P1[18] = USB_UP_LED, 01 */
MPPT51 1:93775378e5d9 151 /* P1[19] = /USB_PPWR, 10 */
MPPT51 1:93775378e5d9 152 /* P1[22] = USB_PWRD, 10 */
MPPT51 1:93775378e5d9 153 /* P1[27] = /USB_OVRCR, 10 */
MPPT51 1:93775378e5d9 154 /*LPC_PINCON->PINSEL3 &= ~((3<<4) | (3<<6) | (3<<12) | (3<<22));
MPPT51 1:93775378e5d9 155 LPC_PINCON->PINSEL3 |= ((1<<4)|(2<<6) | (2<<12) | (2<<22)); // 0x00802080
MPPT51 1:93775378e5d9 156 */
MPPT51 1:93775378e5d9 157
MPPT51 1:93775378e5d9 158 // configure USB D+/D- pins
MPPT51 1:93775378e5d9 159 /* P0[29] = USB_D+, 01 */
MPPT51 1:93775378e5d9 160 /* P0[30] = USB_D-, 01 */
MPPT51 1:93775378e5d9 161 LPC_PINCON->PINSEL1 &= ~((3<<26) | (3<<28));
MPPT51 1:93775378e5d9 162 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // 0x14000000
MPPT51 1:93775378e5d9 163
MPPT51 1:93775378e5d9 164 PRINT_Log("Initializing Host Stack\n\r");
MPPT51 1:93775378e5d9 165
MPPT51 1:93775378e5d9 166 Hcca = (volatile HCCA *)(HostBuf+0x000);
MPPT51 1:93775378e5d9 167 TDHead = (volatile HCTD *)(HostBuf+0x100);
MPPT51 1:93775378e5d9 168 TDTail = (volatile HCTD *)(HostBuf+0x110);
MPPT51 1:93775378e5d9 169 EDCtrl = (volatile HCED *)(HostBuf+0x120);
MPPT51 1:93775378e5d9 170 EDBulkIn = (volatile HCED *)(HostBuf+0x130);
MPPT51 1:93775378e5d9 171 EDBulkOut = (volatile HCED *)(HostBuf+0x140);
MPPT51 1:93775378e5d9 172 TDBuffer = (volatile USB_INT08U *)(HostBuf+0x150);
MPPT51 1:93775378e5d9 173
MPPT51 1:93775378e5d9 174 /* Initialize all the TDs, EDs and HCCA to 0 */
MPPT51 1:93775378e5d9 175 Host_EDInit(EDCtrl);
MPPT51 1:93775378e5d9 176 Host_EDInit(EDBulkIn);
MPPT51 1:93775378e5d9 177 Host_EDInit(EDBulkOut);
MPPT51 1:93775378e5d9 178 Host_TDInit(TDHead);
MPPT51 1:93775378e5d9 179 Host_TDInit(TDTail);
MPPT51 1:93775378e5d9 180 Host_HCCAInit(Hcca);
MPPT51 1:93775378e5d9 181
MPPT51 1:93775378e5d9 182 Host_DelayMS(50); /* Wait 50 ms before apply reset */
MPPT51 1:93775378e5d9 183 LPC_USB->HcControl = 0; /* HARDWARE RESET */
MPPT51 1:93775378e5d9 184 LPC_USB->HcControlHeadED = 0; /* Initialize Control list head to Zero */
MPPT51 1:93775378e5d9 185 LPC_USB->HcBulkHeadED = 0; /* Initialize Bulk list head to Zero */
MPPT51 1:93775378e5d9 186
MPPT51 1:93775378e5d9 187 /* SOFTWARE RESET */
MPPT51 1:93775378e5d9 188 LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR;
MPPT51 1:93775378e5d9 189 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; /* Write Fm Interval and Largest Data Packet Counter */
MPPT51 1:93775378e5d9 190
MPPT51 1:93775378e5d9 191 /* Put HC in operational state */
MPPT51 1:93775378e5d9 192 LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) | OR_CONTROL_HC_OPER;
MPPT51 1:93775378e5d9 193 LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC; /* Set Global Power */
MPPT51 1:93775378e5d9 194
MPPT51 1:93775378e5d9 195 LPC_USB->HcHCCA = (USB_INT32U)Hcca;
MPPT51 1:93775378e5d9 196 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus; /* Clear Interrrupt Status */
MPPT51 1:93775378e5d9 197
MPPT51 1:93775378e5d9 198
MPPT51 1:93775378e5d9 199 LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE |
MPPT51 1:93775378e5d9 200 OR_INTR_ENABLE_WDH |
MPPT51 1:93775378e5d9 201 OR_INTR_ENABLE_RHSC;
MPPT51 1:93775378e5d9 202
MPPT51 1:93775378e5d9 203 NVIC_SetPriority(USB_IRQn, 0); /* highest priority */
MPPT51 1:93775378e5d9 204 /* Enable the USB Interrupt */
MPPT51 1:93775378e5d9 205 NVIC_EnableIRQ(USB_IRQn);
MPPT51 1:93775378e5d9 206 PRINT_Log("Host Initialized\n\r");
MPPT51 1:93775378e5d9 207 }
MPPT51 1:93775378e5d9 208
MPPT51 1:93775378e5d9 209 /*
MPPT51 1:93775378e5d9 210 **************************************************************************************************************
MPPT51 1:93775378e5d9 211 * INTERRUPT SERVICE ROUTINE
MPPT51 1:93775378e5d9 212 *
MPPT51 1:93775378e5d9 213 * Description: This function services the interrupt caused by host controller
MPPT51 1:93775378e5d9 214 *
MPPT51 1:93775378e5d9 215 * Arguments : None
MPPT51 1:93775378e5d9 216 *
MPPT51 1:93775378e5d9 217 * Returns : None
MPPT51 1:93775378e5d9 218 *
MPPT51 1:93775378e5d9 219 **************************************************************************************************************
MPPT51 1:93775378e5d9 220 */
MPPT51 1:93775378e5d9 221
MPPT51 1:93775378e5d9 222 void USB_IRQHandler (void) __irq
MPPT51 1:93775378e5d9 223 {
MPPT51 1:93775378e5d9 224 USB_INT32U int_status;
MPPT51 1:93775378e5d9 225 USB_INT32U ie_status;
MPPT51 1:93775378e5d9 226
MPPT51 1:93775378e5d9 227 int_status = LPC_USB->HcInterruptStatus; /* Read Interrupt Status */
MPPT51 1:93775378e5d9 228 ie_status = LPC_USB->HcInterruptEnable; /* Read Interrupt enable status */
MPPT51 1:93775378e5d9 229
MPPT51 1:93775378e5d9 230 if (!(int_status & ie_status)) {
MPPT51 1:93775378e5d9 231 return;
MPPT51 1:93775378e5d9 232 } else {
MPPT51 1:93775378e5d9 233
MPPT51 1:93775378e5d9 234 int_status = int_status & ie_status;
MPPT51 1:93775378e5d9 235 if (int_status & OR_INTR_STATUS_RHSC) { /* Root hub status change interrupt */
MPPT51 1:93775378e5d9 236 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) {
MPPT51 1:93775378e5d9 237 if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) {
MPPT51 1:93775378e5d9 238 /*
MPPT51 1:93775378e5d9 239 * When DRWE is on, Connect Status Change
MPPT51 1:93775378e5d9 240 * means a remote wakeup event.
MPPT51 1:93775378e5d9 241 */
MPPT51 1:93775378e5d9 242 HOST_RhscIntr = 1;// JUST SOMETHING FOR A BREAKPOINT
MPPT51 1:93775378e5d9 243 }
MPPT51 1:93775378e5d9 244 else {
MPPT51 1:93775378e5d9 245 /*
MPPT51 1:93775378e5d9 246 * When DRWE is off, Connect Status Change
MPPT51 1:93775378e5d9 247 * is NOT a remote wakeup event
MPPT51 1:93775378e5d9 248 */
MPPT51 1:93775378e5d9 249 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) {
MPPT51 1:93775378e5d9 250 if (!gUSBConnected) {
MPPT51 1:93775378e5d9 251 HOST_TDControlStatus = 0;
MPPT51 1:93775378e5d9 252 HOST_WdhIntr = 0;
MPPT51 1:93775378e5d9 253 HOST_RhscIntr = 1;
MPPT51 1:93775378e5d9 254 gUSBConnected = 1;
MPPT51 1:93775378e5d9 255 }
MPPT51 1:93775378e5d9 256 else
MPPT51 1:93775378e5d9 257 PRINT_Log("Spurious status change (connected)?\n\r");
MPPT51 1:93775378e5d9 258 } else {
MPPT51 1:93775378e5d9 259 if (gUSBConnected) {
MPPT51 1:93775378e5d9 260 LPC_USB->HcInterruptEnable = 0; // why do we get multiple disc. rupts???
MPPT51 1:93775378e5d9 261 HOST_RhscIntr = 0;
MPPT51 1:93775378e5d9 262 gUSBConnected = 0;
MPPT51 1:93775378e5d9 263 }
MPPT51 1:93775378e5d9 264 else
MPPT51 1:93775378e5d9 265 PRINT_Log("Spurious status change (disconnected)?\n\r");
MPPT51 1:93775378e5d9 266 }
MPPT51 1:93775378e5d9 267 }
MPPT51 1:93775378e5d9 268 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC;
MPPT51 1:93775378e5d9 269 }
MPPT51 1:93775378e5d9 270 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) {
MPPT51 1:93775378e5d9 271 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
MPPT51 1:93775378e5d9 272 }
MPPT51 1:93775378e5d9 273 }
MPPT51 1:93775378e5d9 274 if (int_status & OR_INTR_STATUS_WDH) { /* Writeback Done Head interrupt */
MPPT51 1:93775378e5d9 275 HOST_WdhIntr = 1;
MPPT51 1:93775378e5d9 276 HOST_TDControlStatus = (TDHead->Control >> 28) & 0xf;
MPPT51 1:93775378e5d9 277 }
MPPT51 1:93775378e5d9 278 LPC_USB->HcInterruptStatus = int_status; /* Clear interrupt status register */
MPPT51 1:93775378e5d9 279 }
MPPT51 1:93775378e5d9 280 return;
MPPT51 1:93775378e5d9 281 }
MPPT51 1:93775378e5d9 282
MPPT51 1:93775378e5d9 283 /*
MPPT51 1:93775378e5d9 284 **************************************************************************************************************
MPPT51 1:93775378e5d9 285 * PROCESS TRANSFER DESCRIPTOR
MPPT51 1:93775378e5d9 286 *
MPPT51 1:93775378e5d9 287 * Description: This function processes the transfer descriptor
MPPT51 1:93775378e5d9 288 *
MPPT51 1:93775378e5d9 289 * Arguments : ed Endpoint descriptor that contains this transfer descriptor
MPPT51 1:93775378e5d9 290 * token SETUP, IN, OUT
MPPT51 1:93775378e5d9 291 * buffer Current Buffer Pointer of the transfer descriptor
MPPT51 1:93775378e5d9 292 * buffer_len Length of the buffer
MPPT51 1:93775378e5d9 293 *
MPPT51 1:93775378e5d9 294 * Returns : OK if TD submission is successful
MPPT51 1:93775378e5d9 295 * ERROR if TD submission fails
MPPT51 1:93775378e5d9 296 *
MPPT51 1:93775378e5d9 297 **************************************************************************************************************
MPPT51 1:93775378e5d9 298 */
MPPT51 1:93775378e5d9 299
MPPT51 1:93775378e5d9 300 USB_INT32S Host_ProcessTD (volatile HCED *ed,
MPPT51 1:93775378e5d9 301 volatile USB_INT32U token,
MPPT51 1:93775378e5d9 302 volatile USB_INT08U *buffer,
MPPT51 1:93775378e5d9 303 USB_INT32U buffer_len)
MPPT51 1:93775378e5d9 304 {
MPPT51 1:93775378e5d9 305 volatile USB_INT32U td_toggle;
MPPT51 1:93775378e5d9 306
MPPT51 1:93775378e5d9 307
MPPT51 1:93775378e5d9 308 if (ed == EDCtrl) {
MPPT51 1:93775378e5d9 309 if (token == TD_SETUP) {
MPPT51 1:93775378e5d9 310 td_toggle = TD_TOGGLE_0;
MPPT51 1:93775378e5d9 311 } else {
MPPT51 1:93775378e5d9 312 td_toggle = TD_TOGGLE_1;
MPPT51 1:93775378e5d9 313 }
MPPT51 1:93775378e5d9 314 } else {
MPPT51 1:93775378e5d9 315 td_toggle = 0;
MPPT51 1:93775378e5d9 316 }
MPPT51 1:93775378e5d9 317 TDHead->Control = (TD_ROUNDING |
MPPT51 1:93775378e5d9 318 token |
MPPT51 1:93775378e5d9 319 TD_DELAY_INT(0) |
MPPT51 1:93775378e5d9 320 td_toggle |
MPPT51 1:93775378e5d9 321 TD_CC);
MPPT51 1:93775378e5d9 322 TDTail->Control = 0;
MPPT51 1:93775378e5d9 323 TDHead->CurrBufPtr = (USB_INT32U) buffer;
MPPT51 1:93775378e5d9 324 TDTail->CurrBufPtr = 0;
MPPT51 1:93775378e5d9 325 TDHead->Next = (USB_INT32U) TDTail;
MPPT51 1:93775378e5d9 326 TDTail->Next = 0;
MPPT51 1:93775378e5d9 327 TDHead->BufEnd = (USB_INT32U)(buffer + (buffer_len - 1));
MPPT51 1:93775378e5d9 328 TDTail->BufEnd = 0;
MPPT51 1:93775378e5d9 329
MPPT51 1:93775378e5d9 330 ed->HeadTd = (USB_INT32U)TDHead | ((ed->HeadTd) & 0x00000002);
MPPT51 1:93775378e5d9 331 ed->TailTd = (USB_INT32U)TDTail;
MPPT51 1:93775378e5d9 332 ed->Next = 0;
MPPT51 1:93775378e5d9 333
MPPT51 1:93775378e5d9 334 if (ed == EDCtrl) {
MPPT51 1:93775378e5d9 335 LPC_USB->HcControlHeadED = (USB_INT32U)ed;
MPPT51 1:93775378e5d9 336 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_CLF;
MPPT51 1:93775378e5d9 337 LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_CLE;
MPPT51 1:93775378e5d9 338 } else {
MPPT51 1:93775378e5d9 339 LPC_USB->HcBulkHeadED = (USB_INT32U)ed;
MPPT51 1:93775378e5d9 340 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_BLF;
MPPT51 1:93775378e5d9 341 LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_BLE;
MPPT51 1:93775378e5d9 342 }
MPPT51 1:93775378e5d9 343
MPPT51 1:93775378e5d9 344 Host_WDHWait();
MPPT51 1:93775378e5d9 345
MPPT51 1:93775378e5d9 346 // if (!(TDHead->Control & 0xF0000000)) {
MPPT51 1:93775378e5d9 347 if (!HOST_TDControlStatus) {
MPPT51 1:93775378e5d9 348 return (OK);
MPPT51 1:93775378e5d9 349 } else {
MPPT51 1:93775378e5d9 350 return (ERR_TD_FAIL);
MPPT51 1:93775378e5d9 351 }
MPPT51 1:93775378e5d9 352 }
MPPT51 1:93775378e5d9 353
MPPT51 1:93775378e5d9 354 /*
MPPT51 1:93775378e5d9 355 **************************************************************************************************************
MPPT51 1:93775378e5d9 356 * ENUMERATE THE DEVICE
MPPT51 1:93775378e5d9 357 *
MPPT51 1:93775378e5d9 358 * Description: This function is used to enumerate the device connected
MPPT51 1:93775378e5d9 359 *
MPPT51 1:93775378e5d9 360 * Arguments : None
MPPT51 1:93775378e5d9 361 *
MPPT51 1:93775378e5d9 362 * Returns : None
MPPT51 1:93775378e5d9 363 *
MPPT51 1:93775378e5d9 364 **************************************************************************************************************
MPPT51 1:93775378e5d9 365 */
MPPT51 1:93775378e5d9 366
MPPT51 1:93775378e5d9 367 USB_INT32S Host_EnumDev (void) //kikkawa
MPPT51 1:93775378e5d9 368 {
MPPT51 1:93775378e5d9 369 USB_INT32S rc;
MPPT51 1:93775378e5d9 370
MPPT51 1:93775378e5d9 371 PRINT_Log("Connect a Mass Storage device\n\r");
MPPT51 1:93775378e5d9 372 //while (!HOST_RhscIntr) //もしHOST_RhscIntrが0なら(USB未接続)、下の分の処理を繰り返す //USB未接続でも止まってほしくないのでコメントにしとく
MPPT51 1:93775378e5d9 373 // __WFI(); //多分スリープ処理(動作停止)
MPPT51 1:93775378e5d9 374 if( !HOST_RhscIntr ){ PRINT_Log("USB => X\n\r"); }
MPPT51 1:93775378e5d9 375 Host_DelayMS(100); /* USB 2.0 spec says atleast 50ms delay beore port reset */
MPPT51 1:93775378e5d9 376 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS; // Initiate port reset
MPPT51 1:93775378e5d9 377 while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS)
MPPT51 1:93775378e5d9 378 __WFI(); // Wait for port reset to complete...
MPPT51 1:93775378e5d9 379 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; // ...and clear port reset signal
MPPT51 1:93775378e5d9 380 Host_DelayMS(200); /* Wait for 100 MS after port reset */
MPPT51 1:93775378e5d9 381 EDCtrl->Control = 8 << 16; /* Put max pkt size = 8 */
MPPT51 1:93775378e5d9 382 /* Read first 8 bytes of device desc */
MPPT51 1:93775378e5d9 383 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_DEVICE, 0, TDBuffer, 8);
MPPT51 1:93775378e5d9 384 if (rc != OK) {
MPPT51 1:93775378e5d9 385 PRINT_Err(rc);
MPPT51 1:93775378e5d9 386 return (rc);
MPPT51 1:93775378e5d9 387 }
MPPT51 1:93775378e5d9 388 EDCtrl->Control = TDBuffer[7] << 16; /* Get max pkt size of endpoint 0 */
MPPT51 1:93775378e5d9 389 rc = HOST_SET_ADDRESS(1); /* Set the device address to 1 */
MPPT51 1:93775378e5d9 390 if (rc != OK) {
MPPT51 1:93775378e5d9 391 PRINT_Err(rc);
MPPT51 1:93775378e5d9 392 return (rc);
MPPT51 1:93775378e5d9 393 }
MPPT51 1:93775378e5d9 394 Host_DelayMS(2);
MPPT51 1:93775378e5d9 395 EDCtrl->Control = (EDCtrl->Control) | 1; /* Modify control pipe with address 1 */
MPPT51 1:93775378e5d9 396 /* Get the configuration descriptor */
MPPT51 1:93775378e5d9 397 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, 9);
MPPT51 1:93775378e5d9 398 if (rc != OK) {
MPPT51 1:93775378e5d9 399 PRINT_Err(rc);
MPPT51 1:93775378e5d9 400 return (rc);
MPPT51 1:93775378e5d9 401 }
MPPT51 1:93775378e5d9 402 /* Get the first configuration data */
MPPT51 1:93775378e5d9 403 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, ReadLE16U(&TDBuffer[2]));
MPPT51 1:93775378e5d9 404 if (rc != OK) {
MPPT51 1:93775378e5d9 405 PRINT_Err(rc);
MPPT51 1:93775378e5d9 406 return (rc);
MPPT51 1:93775378e5d9 407 }
MPPT51 1:93775378e5d9 408 rc = MS_ParseConfiguration(); /* Parse the configuration */
MPPT51 1:93775378e5d9 409 if (rc != OK) {
MPPT51 1:93775378e5d9 410 PRINT_Err(rc);
MPPT51 1:93775378e5d9 411 return (rc);
MPPT51 1:93775378e5d9 412 }
MPPT51 1:93775378e5d9 413 rc = USBH_SET_CONFIGURATION(1); /* Select device configuration 1 */
MPPT51 1:93775378e5d9 414 if (rc != OK) {
MPPT51 1:93775378e5d9 415 PRINT_Err(rc);
MPPT51 1:93775378e5d9 416 }
MPPT51 1:93775378e5d9 417 Host_DelayMS(100); /* Some devices may require this delay */
MPPT51 1:93775378e5d9 418 return (rc);
MPPT51 1:93775378e5d9 419 }
MPPT51 1:93775378e5d9 420
MPPT51 1:93775378e5d9 421 /*
MPPT51 1:93775378e5d9 422 **************************************************************************************************************
MPPT51 1:93775378e5d9 423 * RECEIVE THE CONTROL INFORMATION
MPPT51 1:93775378e5d9 424 *
MPPT51 1:93775378e5d9 425 * Description: This function is used to receive the control information
MPPT51 1:93775378e5d9 426 *
MPPT51 1:93775378e5d9 427 * Arguments : bm_request_type
MPPT51 1:93775378e5d9 428 * b_request
MPPT51 1:93775378e5d9 429 * w_value
MPPT51 1:93775378e5d9 430 * w_index
MPPT51 1:93775378e5d9 431 * w_length
MPPT51 1:93775378e5d9 432 * buffer
MPPT51 1:93775378e5d9 433 *
MPPT51 1:93775378e5d9 434 * Returns : OK if Success
MPPT51 1:93775378e5d9 435 * ERROR if Failed
MPPT51 1:93775378e5d9 436 *
MPPT51 1:93775378e5d9 437 **************************************************************************************************************
MPPT51 1:93775378e5d9 438 */
MPPT51 1:93775378e5d9 439
MPPT51 1:93775378e5d9 440 USB_INT32S Host_CtrlRecv ( USB_INT08U bm_request_type,
MPPT51 1:93775378e5d9 441 USB_INT08U b_request,
MPPT51 1:93775378e5d9 442 USB_INT16U w_value,
MPPT51 1:93775378e5d9 443 USB_INT16U w_index,
MPPT51 1:93775378e5d9 444 USB_INT16U w_length,
MPPT51 1:93775378e5d9 445 volatile USB_INT08U *buffer)
MPPT51 1:93775378e5d9 446 {
MPPT51 1:93775378e5d9 447 USB_INT32S rc;
MPPT51 1:93775378e5d9 448
MPPT51 1:93775378e5d9 449
MPPT51 1:93775378e5d9 450 Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
MPPT51 1:93775378e5d9 451 rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
MPPT51 1:93775378e5d9 452 if (rc == OK) {
MPPT51 1:93775378e5d9 453 if (w_length) {
MPPT51 1:93775378e5d9 454 rc = Host_ProcessTD(EDCtrl, TD_IN, TDBuffer, w_length);
MPPT51 1:93775378e5d9 455 }
MPPT51 1:93775378e5d9 456 if (rc == OK) {
MPPT51 1:93775378e5d9 457 rc = Host_ProcessTD(EDCtrl, TD_OUT, NULL, 0);
MPPT51 1:93775378e5d9 458 }
MPPT51 1:93775378e5d9 459 }
MPPT51 1:93775378e5d9 460 return (rc);
MPPT51 1:93775378e5d9 461 }
MPPT51 1:93775378e5d9 462
MPPT51 1:93775378e5d9 463 /*
MPPT51 1:93775378e5d9 464 **************************************************************************************************************
MPPT51 1:93775378e5d9 465 * SEND THE CONTROL INFORMATION
MPPT51 1:93775378e5d9 466 *
MPPT51 1:93775378e5d9 467 * Description: This function is used to send the control information
MPPT51 1:93775378e5d9 468 *
MPPT51 1:93775378e5d9 469 * Arguments : None
MPPT51 1:93775378e5d9 470 *
MPPT51 1:93775378e5d9 471 * Returns : OK if Success
MPPT51 1:93775378e5d9 472 * ERR_INVALID_BOOTSIG if Failed
MPPT51 1:93775378e5d9 473 *
MPPT51 1:93775378e5d9 474 **************************************************************************************************************
MPPT51 1:93775378e5d9 475 */
MPPT51 1:93775378e5d9 476
MPPT51 1:93775378e5d9 477 USB_INT32S Host_CtrlSend ( USB_INT08U bm_request_type,
MPPT51 1:93775378e5d9 478 USB_INT08U b_request,
MPPT51 1:93775378e5d9 479 USB_INT16U w_value,
MPPT51 1:93775378e5d9 480 USB_INT16U w_index,
MPPT51 1:93775378e5d9 481 USB_INT16U w_length,
MPPT51 1:93775378e5d9 482 volatile USB_INT08U *buffer)
MPPT51 1:93775378e5d9 483 {
MPPT51 1:93775378e5d9 484 USB_INT32S rc;
MPPT51 1:93775378e5d9 485
MPPT51 1:93775378e5d9 486
MPPT51 1:93775378e5d9 487 Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
MPPT51 1:93775378e5d9 488
MPPT51 1:93775378e5d9 489 rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
MPPT51 1:93775378e5d9 490 if (rc == OK) {
MPPT51 1:93775378e5d9 491 if (w_length) {
MPPT51 1:93775378e5d9 492 rc = Host_ProcessTD(EDCtrl, TD_OUT, TDBuffer, w_length);
MPPT51 1:93775378e5d9 493 }
MPPT51 1:93775378e5d9 494 if (rc == OK) {
MPPT51 1:93775378e5d9 495 rc = Host_ProcessTD(EDCtrl, TD_IN, NULL, 0);
MPPT51 1:93775378e5d9 496 }
MPPT51 1:93775378e5d9 497 }
MPPT51 1:93775378e5d9 498 return (rc);
MPPT51 1:93775378e5d9 499 }
MPPT51 1:93775378e5d9 500
MPPT51 1:93775378e5d9 501 /*
MPPT51 1:93775378e5d9 502 **************************************************************************************************************
MPPT51 1:93775378e5d9 503 * FILL SETUP PACKET
MPPT51 1:93775378e5d9 504 *
MPPT51 1:93775378e5d9 505 * Description: This function is used to fill the setup packet
MPPT51 1:93775378e5d9 506 *
MPPT51 1:93775378e5d9 507 * Arguments : None
MPPT51 1:93775378e5d9 508 *
MPPT51 1:93775378e5d9 509 * Returns : OK if Success
MPPT51 1:93775378e5d9 510 * ERR_INVALID_BOOTSIG if Failed
MPPT51 1:93775378e5d9 511 *
MPPT51 1:93775378e5d9 512 **************************************************************************************************************
MPPT51 1:93775378e5d9 513 */
MPPT51 1:93775378e5d9 514
MPPT51 1:93775378e5d9 515 void Host_FillSetup (USB_INT08U bm_request_type,
MPPT51 1:93775378e5d9 516 USB_INT08U b_request,
MPPT51 1:93775378e5d9 517 USB_INT16U w_value,
MPPT51 1:93775378e5d9 518 USB_INT16U w_index,
MPPT51 1:93775378e5d9 519 USB_INT16U w_length)
MPPT51 1:93775378e5d9 520 {
MPPT51 1:93775378e5d9 521 int i;
MPPT51 1:93775378e5d9 522 for (i=0;i<w_length;i++)
MPPT51 1:93775378e5d9 523 TDBuffer[i] = 0;
MPPT51 1:93775378e5d9 524
MPPT51 1:93775378e5d9 525 TDBuffer[0] = bm_request_type;
MPPT51 1:93775378e5d9 526 TDBuffer[1] = b_request;
MPPT51 1:93775378e5d9 527 WriteLE16U(&TDBuffer[2], w_value);
MPPT51 1:93775378e5d9 528 WriteLE16U(&TDBuffer[4], w_index);
MPPT51 1:93775378e5d9 529 WriteLE16U(&TDBuffer[6], w_length);
MPPT51 1:93775378e5d9 530 }
MPPT51 1:93775378e5d9 531
MPPT51 1:93775378e5d9 532
MPPT51 1:93775378e5d9 533
MPPT51 1:93775378e5d9 534 /*
MPPT51 1:93775378e5d9 535 **************************************************************************************************************
MPPT51 1:93775378e5d9 536 * INITIALIZE THE TRANSFER DESCRIPTOR
MPPT51 1:93775378e5d9 537 *
MPPT51 1:93775378e5d9 538 * Description: This function initializes transfer descriptor
MPPT51 1:93775378e5d9 539 *
MPPT51 1:93775378e5d9 540 * Arguments : Pointer to TD structure
MPPT51 1:93775378e5d9 541 *
MPPT51 1:93775378e5d9 542 * Returns : None
MPPT51 1:93775378e5d9 543 *
MPPT51 1:93775378e5d9 544 **************************************************************************************************************
MPPT51 1:93775378e5d9 545 */
MPPT51 1:93775378e5d9 546
MPPT51 1:93775378e5d9 547 void Host_TDInit (volatile HCTD *td)
MPPT51 1:93775378e5d9 548 {
MPPT51 1:93775378e5d9 549
MPPT51 1:93775378e5d9 550 td->Control = 0;
MPPT51 1:93775378e5d9 551 td->CurrBufPtr = 0;
MPPT51 1:93775378e5d9 552 td->Next = 0;
MPPT51 1:93775378e5d9 553 td->BufEnd = 0;
MPPT51 1:93775378e5d9 554 }
MPPT51 1:93775378e5d9 555
MPPT51 1:93775378e5d9 556 /*
MPPT51 1:93775378e5d9 557 **************************************************************************************************************
MPPT51 1:93775378e5d9 558 * INITIALIZE THE ENDPOINT DESCRIPTOR
MPPT51 1:93775378e5d9 559 *
MPPT51 1:93775378e5d9 560 * Description: This function initializes endpoint descriptor
MPPT51 1:93775378e5d9 561 *
MPPT51 1:93775378e5d9 562 * Arguments : Pointer to ED strcuture
MPPT51 1:93775378e5d9 563 *
MPPT51 1:93775378e5d9 564 * Returns : None
MPPT51 1:93775378e5d9 565 *
MPPT51 1:93775378e5d9 566 **************************************************************************************************************
MPPT51 1:93775378e5d9 567 */
MPPT51 1:93775378e5d9 568
MPPT51 1:93775378e5d9 569 void Host_EDInit (volatile HCED *ed)
MPPT51 1:93775378e5d9 570 {
MPPT51 1:93775378e5d9 571
MPPT51 1:93775378e5d9 572 ed->Control = 0;
MPPT51 1:93775378e5d9 573 ed->TailTd = 0;
MPPT51 1:93775378e5d9 574 ed->HeadTd = 0;
MPPT51 1:93775378e5d9 575 ed->Next = 0;
MPPT51 1:93775378e5d9 576 }
MPPT51 1:93775378e5d9 577
MPPT51 1:93775378e5d9 578 /*
MPPT51 1:93775378e5d9 579 **************************************************************************************************************
MPPT51 1:93775378e5d9 580 * INITIALIZE HOST CONTROLLER COMMUNICATIONS AREA
MPPT51 1:93775378e5d9 581 *
MPPT51 1:93775378e5d9 582 * Description: This function initializes host controller communications area
MPPT51 1:93775378e5d9 583 *
MPPT51 1:93775378e5d9 584 * Arguments : Pointer to HCCA
MPPT51 1:93775378e5d9 585 *
MPPT51 1:93775378e5d9 586 * Returns :
MPPT51 1:93775378e5d9 587 *
MPPT51 1:93775378e5d9 588 **************************************************************************************************************
MPPT51 1:93775378e5d9 589 */
MPPT51 1:93775378e5d9 590
MPPT51 1:93775378e5d9 591 void Host_HCCAInit (volatile HCCA *hcca)
MPPT51 1:93775378e5d9 592 {
MPPT51 1:93775378e5d9 593 USB_INT32U i;
MPPT51 1:93775378e5d9 594
MPPT51 1:93775378e5d9 595
MPPT51 1:93775378e5d9 596 for (i = 0; i < 32; i++) {
MPPT51 1:93775378e5d9 597
MPPT51 1:93775378e5d9 598 hcca->IntTable[i] = 0;
MPPT51 1:93775378e5d9 599 hcca->FrameNumber = 0;
MPPT51 1:93775378e5d9 600 hcca->DoneHead = 0;
MPPT51 1:93775378e5d9 601 }
MPPT51 1:93775378e5d9 602
MPPT51 1:93775378e5d9 603 }
MPPT51 1:93775378e5d9 604
MPPT51 1:93775378e5d9 605 /*
MPPT51 1:93775378e5d9 606 **************************************************************************************************************
MPPT51 1:93775378e5d9 607 * WAIT FOR WDH INTERRUPT
MPPT51 1:93775378e5d9 608 *
MPPT51 1:93775378e5d9 609 * Description: This function is infinite loop which breaks when ever a WDH interrupt rises
MPPT51 1:93775378e5d9 610 *
MPPT51 1:93775378e5d9 611 * Arguments : None
MPPT51 1:93775378e5d9 612 *
MPPT51 1:93775378e5d9 613 * Returns : None
MPPT51 1:93775378e5d9 614 *
MPPT51 1:93775378e5d9 615 **************************************************************************************************************
MPPT51 1:93775378e5d9 616 */
MPPT51 1:93775378e5d9 617
MPPT51 1:93775378e5d9 618 void Host_WDHWait (void)
MPPT51 1:93775378e5d9 619 {
MPPT51 1:93775378e5d9 620 while (!HOST_WdhIntr)
MPPT51 1:93775378e5d9 621 __WFI();
MPPT51 1:93775378e5d9 622
MPPT51 1:93775378e5d9 623 HOST_WdhIntr = 0;
MPPT51 1:93775378e5d9 624 }
MPPT51 1:93775378e5d9 625
MPPT51 1:93775378e5d9 626 /*
MPPT51 1:93775378e5d9 627 **************************************************************************************************************
MPPT51 1:93775378e5d9 628 * READ LE 32U
MPPT51 1:93775378e5d9 629 *
MPPT51 1:93775378e5d9 630 * Description: This function is used to read an unsigned integer from a character buffer in the platform
MPPT51 1:93775378e5d9 631 * containing little endian processor
MPPT51 1:93775378e5d9 632 *
MPPT51 1:93775378e5d9 633 * Arguments : pmem Pointer to the character buffer
MPPT51 1:93775378e5d9 634 *
MPPT51 1:93775378e5d9 635 * Returns : val Unsigned integer
MPPT51 1:93775378e5d9 636 *
MPPT51 1:93775378e5d9 637 **************************************************************************************************************
MPPT51 1:93775378e5d9 638 */
MPPT51 1:93775378e5d9 639
MPPT51 1:93775378e5d9 640 USB_INT32U ReadLE32U (volatile USB_INT08U *pmem)
MPPT51 1:93775378e5d9 641 {
MPPT51 1:93775378e5d9 642 USB_INT32U val = *(USB_INT32U*)pmem;
MPPT51 1:93775378e5d9 643 #ifdef __BIG_ENDIAN
MPPT51 1:93775378e5d9 644 return __REV(val);
MPPT51 1:93775378e5d9 645 #else
MPPT51 1:93775378e5d9 646 return val;
MPPT51 1:93775378e5d9 647 #endif
MPPT51 1:93775378e5d9 648 }
MPPT51 1:93775378e5d9 649
MPPT51 1:93775378e5d9 650 /*
MPPT51 1:93775378e5d9 651 **************************************************************************************************************
MPPT51 1:93775378e5d9 652 * WRITE LE 32U
MPPT51 1:93775378e5d9 653 *
MPPT51 1:93775378e5d9 654 * Description: This function is used to write an unsigned integer into a charecter buffer in the platform
MPPT51 1:93775378e5d9 655 * containing little endian processor.
MPPT51 1:93775378e5d9 656 *
MPPT51 1:93775378e5d9 657 * Arguments : pmem Pointer to the charecter buffer
MPPT51 1:93775378e5d9 658 * val Integer value to be placed in the charecter buffer
MPPT51 1:93775378e5d9 659 *
MPPT51 1:93775378e5d9 660 * Returns : None
MPPT51 1:93775378e5d9 661 *
MPPT51 1:93775378e5d9 662 **************************************************************************************************************
MPPT51 1:93775378e5d9 663 */
MPPT51 1:93775378e5d9 664
MPPT51 1:93775378e5d9 665 void WriteLE32U (volatile USB_INT08U *pmem,
MPPT51 1:93775378e5d9 666 USB_INT32U val)
MPPT51 1:93775378e5d9 667 {
MPPT51 1:93775378e5d9 668 #ifdef __BIG_ENDIAN
MPPT51 1:93775378e5d9 669 *(USB_INT32U*)pmem = __REV(val);
MPPT51 1:93775378e5d9 670 #else
MPPT51 1:93775378e5d9 671 *(USB_INT32U*)pmem = val;
MPPT51 1:93775378e5d9 672 #endif
MPPT51 1:93775378e5d9 673 }
MPPT51 1:93775378e5d9 674
MPPT51 1:93775378e5d9 675 /*
MPPT51 1:93775378e5d9 676 **************************************************************************************************************
MPPT51 1:93775378e5d9 677 * READ LE 16U
MPPT51 1:93775378e5d9 678 *
MPPT51 1:93775378e5d9 679 * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
MPPT51 1:93775378e5d9 680 * containing little endian processor
MPPT51 1:93775378e5d9 681 *
MPPT51 1:93775378e5d9 682 * Arguments : pmem Pointer to the charecter buffer
MPPT51 1:93775378e5d9 683 *
MPPT51 1:93775378e5d9 684 * Returns : val Unsigned short integer
MPPT51 1:93775378e5d9 685 *
MPPT51 1:93775378e5d9 686 **************************************************************************************************************
MPPT51 1:93775378e5d9 687 */
MPPT51 1:93775378e5d9 688
MPPT51 1:93775378e5d9 689 USB_INT16U ReadLE16U (volatile USB_INT08U *pmem)
MPPT51 1:93775378e5d9 690 {
MPPT51 1:93775378e5d9 691 USB_INT16U val = *(USB_INT16U*)pmem;
MPPT51 1:93775378e5d9 692 #ifdef __BIG_ENDIAN
MPPT51 1:93775378e5d9 693 return __REV16(val);
MPPT51 1:93775378e5d9 694 #else
MPPT51 1:93775378e5d9 695 return val;
MPPT51 1:93775378e5d9 696 #endif
MPPT51 1:93775378e5d9 697 }
MPPT51 1:93775378e5d9 698
MPPT51 1:93775378e5d9 699 /*
MPPT51 1:93775378e5d9 700 **************************************************************************************************************
MPPT51 1:93775378e5d9 701 * WRITE LE 16U
MPPT51 1:93775378e5d9 702 *
MPPT51 1:93775378e5d9 703 * Description: This function is used to write an unsigned short integer into a charecter buffer in the
MPPT51 1:93775378e5d9 704 * platform containing little endian processor
MPPT51 1:93775378e5d9 705 *
MPPT51 1:93775378e5d9 706 * Arguments : pmem Pointer to the charecter buffer
MPPT51 1:93775378e5d9 707 * val Value to be placed in the charecter buffer
MPPT51 1:93775378e5d9 708 *
MPPT51 1:93775378e5d9 709 * Returns : None
MPPT51 1:93775378e5d9 710 *
MPPT51 1:93775378e5d9 711 **************************************************************************************************************
MPPT51 1:93775378e5d9 712 */
MPPT51 1:93775378e5d9 713
MPPT51 1:93775378e5d9 714 void WriteLE16U (volatile USB_INT08U *pmem,
MPPT51 1:93775378e5d9 715 USB_INT16U val)
MPPT51 1:93775378e5d9 716 {
MPPT51 1:93775378e5d9 717 #ifdef __BIG_ENDIAN
MPPT51 1:93775378e5d9 718 *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF);
MPPT51 1:93775378e5d9 719 #else
MPPT51 1:93775378e5d9 720 *(USB_INT16U*)pmem = val;
MPPT51 1:93775378e5d9 721 #endif
MPPT51 1:93775378e5d9 722 }
MPPT51 1:93775378e5d9 723
MPPT51 1:93775378e5d9 724 /*
MPPT51 1:93775378e5d9 725 **************************************************************************************************************
MPPT51 1:93775378e5d9 726 * READ BE 32U
MPPT51 1:93775378e5d9 727 *
MPPT51 1:93775378e5d9 728 * Description: This function is used to read an unsigned integer from a charecter buffer in the platform
MPPT51 1:93775378e5d9 729 * containing big endian processor
MPPT51 1:93775378e5d9 730 *
MPPT51 1:93775378e5d9 731 * Arguments : pmem Pointer to the charecter buffer
MPPT51 1:93775378e5d9 732 *
MPPT51 1:93775378e5d9 733 * Returns : val Unsigned integer
MPPT51 1:93775378e5d9 734 *
MPPT51 1:93775378e5d9 735 **************************************************************************************************************
MPPT51 1:93775378e5d9 736 */
MPPT51 1:93775378e5d9 737
MPPT51 1:93775378e5d9 738 USB_INT32U ReadBE32U (volatile USB_INT08U *pmem)
MPPT51 1:93775378e5d9 739 {
MPPT51 1:93775378e5d9 740 USB_INT32U val = *(USB_INT32U*)pmem;
MPPT51 1:93775378e5d9 741 #ifdef __BIG_ENDIAN
MPPT51 1:93775378e5d9 742 return val;
MPPT51 1:93775378e5d9 743 #else
MPPT51 1:93775378e5d9 744 return __REV(val);
MPPT51 1:93775378e5d9 745 #endif
MPPT51 1:93775378e5d9 746 }
MPPT51 1:93775378e5d9 747
MPPT51 1:93775378e5d9 748 /*
MPPT51 1:93775378e5d9 749 **************************************************************************************************************
MPPT51 1:93775378e5d9 750 * WRITE BE 32U
MPPT51 1:93775378e5d9 751 *
MPPT51 1:93775378e5d9 752 * Description: This function is used to write an unsigned integer into a charecter buffer in the platform
MPPT51 1:93775378e5d9 753 * containing big endian processor
MPPT51 1:93775378e5d9 754 *
MPPT51 1:93775378e5d9 755 * Arguments : pmem Pointer to the charecter buffer
MPPT51 1:93775378e5d9 756 * val Value to be placed in the charecter buffer
MPPT51 1:93775378e5d9 757 *
MPPT51 1:93775378e5d9 758 * Returns : None
MPPT51 1:93775378e5d9 759 *
MPPT51 1:93775378e5d9 760 **************************************************************************************************************
MPPT51 1:93775378e5d9 761 */
MPPT51 1:93775378e5d9 762
MPPT51 1:93775378e5d9 763 void WriteBE32U (volatile USB_INT08U *pmem,
MPPT51 1:93775378e5d9 764 USB_INT32U val)
MPPT51 1:93775378e5d9 765 {
MPPT51 1:93775378e5d9 766 #ifdef __BIG_ENDIAN
MPPT51 1:93775378e5d9 767 *(USB_INT32U*)pmem = val;
MPPT51 1:93775378e5d9 768 #else
MPPT51 1:93775378e5d9 769 *(USB_INT32U*)pmem = __REV(val);
MPPT51 1:93775378e5d9 770 #endif
MPPT51 1:93775378e5d9 771 }
MPPT51 1:93775378e5d9 772
MPPT51 1:93775378e5d9 773 /*
MPPT51 1:93775378e5d9 774 **************************************************************************************************************
MPPT51 1:93775378e5d9 775 * READ BE 16U
MPPT51 1:93775378e5d9 776 *
MPPT51 1:93775378e5d9 777 * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
MPPT51 1:93775378e5d9 778 * containing big endian processor
MPPT51 1:93775378e5d9 779 *
MPPT51 1:93775378e5d9 780 * Arguments : pmem Pointer to the charecter buffer
MPPT51 1:93775378e5d9 781 *
MPPT51 1:93775378e5d9 782 * Returns : val Unsigned short integer
MPPT51 1:93775378e5d9 783 *
MPPT51 1:93775378e5d9 784 **************************************************************************************************************
MPPT51 1:93775378e5d9 785 */
MPPT51 1:93775378e5d9 786
MPPT51 1:93775378e5d9 787 USB_INT16U ReadBE16U (volatile USB_INT08U *pmem)
MPPT51 1:93775378e5d9 788 {
MPPT51 1:93775378e5d9 789 USB_INT16U val = *(USB_INT16U*)pmem;
MPPT51 1:93775378e5d9 790 #ifdef __BIG_ENDIAN
MPPT51 1:93775378e5d9 791 return val;
MPPT51 1:93775378e5d9 792 #else
MPPT51 1:93775378e5d9 793 return __REV16(val);
MPPT51 1:93775378e5d9 794 #endif
MPPT51 1:93775378e5d9 795 }
MPPT51 1:93775378e5d9 796
MPPT51 1:93775378e5d9 797 /*
MPPT51 1:93775378e5d9 798 **************************************************************************************************************
MPPT51 1:93775378e5d9 799 * WRITE BE 16U
MPPT51 1:93775378e5d9 800 *
MPPT51 1:93775378e5d9 801 * Description: This function is used to write an unsigned short integer into the charecter buffer in the
MPPT51 1:93775378e5d9 802 * platform containing big endian processor
MPPT51 1:93775378e5d9 803 *
MPPT51 1:93775378e5d9 804 * Arguments : pmem Pointer to the charecter buffer
MPPT51 1:93775378e5d9 805 * val Value to be placed in the charecter buffer
MPPT51 1:93775378e5d9 806 *
MPPT51 1:93775378e5d9 807 * Returns : None
MPPT51 1:93775378e5d9 808 *
MPPT51 1:93775378e5d9 809 **************************************************************************************************************
MPPT51 1:93775378e5d9 810 */
MPPT51 1:93775378e5d9 811
MPPT51 1:93775378e5d9 812 void WriteBE16U (volatile USB_INT08U *pmem,
MPPT51 1:93775378e5d9 813 USB_INT16U val)
MPPT51 1:93775378e5d9 814 {
MPPT51 1:93775378e5d9 815 #ifdef __BIG_ENDIAN
MPPT51 1:93775378e5d9 816 *(USB_INT16U*)pmem = val;
MPPT51 1:93775378e5d9 817 #else
MPPT51 1:93775378e5d9 818 *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF);
MPPT51 1:93775378e5d9 819 #endif
MPPT51 1:93775378e5d9 820 }