xeye_ atsu / Mbed 2 deprecated I2S_AIC23B_RiceGolomb

パラメータを適応変化させる事により圧縮率を向上させた動的ライス・ゴロム符号を利用した可逆圧縮方式。圧縮ソフト、圧縮率のMATLABシミュレーションは詳細はInterface誌2011年8月号に掲載されるRX62Nマイコン連動特集にて掲載予定。

Dependencies:   mbed

USBHostLite/usbhost_lpc17xx.c@0:d920d64db582, 2011-03-30 (annotated)

Committer:
lynxeyed_atsu
Date:
Wed Mar 30 06:05:24 2011 +0000
Revision:
0:d920d64db582
alpha

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lynxeyed_atsu 0:d920d64db582 1 /*
lynxeyed_atsu 0:d920d64db582 2 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 3 * NXP USB Host Stack
lynxeyed_atsu 0:d920d64db582 4 *
lynxeyed_atsu 0:d920d64db582 5 * (c) Copyright 2008, NXP SemiConductors
lynxeyed_atsu 0:d920d64db582 6 * (c) Copyright 2008, OnChip Technologies LLC
lynxeyed_atsu 0:d920d64db582 7 * All Rights Reserved
lynxeyed_atsu 0:d920d64db582 8 *
lynxeyed_atsu 0:d920d64db582 9 * www.nxp.com
lynxeyed_atsu 0:d920d64db582 10 * www.onchiptech.com
lynxeyed_atsu 0:d920d64db582 11 *
lynxeyed_atsu 0:d920d64db582 12 * File : usbhost_lpc17xx.c
lynxeyed_atsu 0:d920d64db582 13 * Programmer(s) : Ravikanth.P
lynxeyed_atsu 0:d920d64db582 14 * Version :
lynxeyed_atsu 0:d920d64db582 15 *
lynxeyed_atsu 0:d920d64db582 16 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 17 */
lynxeyed_atsu 0:d920d64db582 18
lynxeyed_atsu 0:d920d64db582 19 /*
lynxeyed_atsu 0:d920d64db582 20 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 21 * INCLUDE HEADER FILES
lynxeyed_atsu 0:d920d64db582 22 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 23 */
lynxeyed_atsu 0:d920d64db582 24
lynxeyed_atsu 0:d920d64db582 25 #include "usbhost_lpc17xx.h"
lynxeyed_atsu 0:d920d64db582 26
lynxeyed_atsu 0:d920d64db582 27 /*
lynxeyed_atsu 0:d920d64db582 28 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 29 * GLOBAL VARIABLES
lynxeyed_atsu 0:d920d64db582 30 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 31 */
lynxeyed_atsu 0:d920d64db582 32 int gUSBConnected;
lynxeyed_atsu 0:d920d64db582 33
lynxeyed_atsu 0:d920d64db582 34 volatile USB_INT32U HOST_RhscIntr = 0; /* Root Hub Status Change interrupt */
lynxeyed_atsu 0:d920d64db582 35 volatile USB_INT32U HOST_WdhIntr = 0; /* Semaphore to wait until the TD is submitted */
lynxeyed_atsu 0:d920d64db582 36 volatile USB_INT08U HOST_TDControlStatus = 0;
lynxeyed_atsu 0:d920d64db582 37 volatile HCED *EDCtrl; /* Control endpoint descriptor structure */
lynxeyed_atsu 0:d920d64db582 38 volatile HCED *EDBulkIn; /* BulkIn endpoint descriptor structure */
lynxeyed_atsu 0:d920d64db582 39 volatile HCED *EDBulkOut; /* BulkOut endpoint descriptor structure */
lynxeyed_atsu 0:d920d64db582 40 volatile HCTD *TDHead; /* Head transfer descriptor structure */
lynxeyed_atsu 0:d920d64db582 41 volatile HCTD *TDTail; /* Tail transfer descriptor structure */
lynxeyed_atsu 0:d920d64db582 42 volatile HCCA *Hcca; /* Host Controller Communications Area structure */
lynxeyed_atsu 0:d920d64db582 43 USB_INT16U *TDBufNonVol; /* Identical to TDBuffer just to reduce compiler warnings */
lynxeyed_atsu 0:d920d64db582 44 volatile USB_INT08U *TDBuffer; /* Current Buffer Pointer of transfer descriptor */
lynxeyed_atsu 0:d920d64db582 45
lynxeyed_atsu 0:d920d64db582 46 // USB host structures
lynxeyed_atsu 0:d920d64db582 47 // AHB SRAM block 1
lynxeyed_atsu 0:d920d64db582 48 #define HOSTBASEADDR 0x2007C000
lynxeyed_atsu 0:d920d64db582 49 // reserve memory for the linker
lynxeyed_atsu 0:d920d64db582 50 static USB_INT08U HostBuf[0x200] __attribute__((at(HOSTBASEADDR)));
lynxeyed_atsu 0:d920d64db582 51 /*
lynxeyed_atsu 0:d920d64db582 52 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 53 * DELAY IN MILLI SECONDS
lynxeyed_atsu 0:d920d64db582 54 *
lynxeyed_atsu 0:d920d64db582 55 * Description: This function provides a delay in milli seconds
lynxeyed_atsu 0:d920d64db582 56 *
lynxeyed_atsu 0:d920d64db582 57 * Arguments : delay The delay required
lynxeyed_atsu 0:d920d64db582 58 *
lynxeyed_atsu 0:d920d64db582 59 * Returns : None
lynxeyed_atsu 0:d920d64db582 60 *
lynxeyed_atsu 0:d920d64db582 61 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 62 */
lynxeyed_atsu 0:d920d64db582 63
lynxeyed_atsu 0:d920d64db582 64 void Host_DelayMS (USB_INT32U delay)
lynxeyed_atsu 0:d920d64db582 65 {
lynxeyed_atsu 0:d920d64db582 66 volatile USB_INT32U i;
lynxeyed_atsu 0:d920d64db582 67
lynxeyed_atsu 0:d920d64db582 68
lynxeyed_atsu 0:d920d64db582 69 for (i = 0; i < delay; i++) {
lynxeyed_atsu 0:d920d64db582 70 Host_DelayUS(1000);
lynxeyed_atsu 0:d920d64db582 71 }
lynxeyed_atsu 0:d920d64db582 72 }
lynxeyed_atsu 0:d920d64db582 73
lynxeyed_atsu 0:d920d64db582 74 /*
lynxeyed_atsu 0:d920d64db582 75 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 76 * DELAY IN MICRO SECONDS
lynxeyed_atsu 0:d920d64db582 77 *
lynxeyed_atsu 0:d920d64db582 78 * Description: This function provides a delay in micro seconds
lynxeyed_atsu 0:d920d64db582 79 *
lynxeyed_atsu 0:d920d64db582 80 * Arguments : delay The delay required
lynxeyed_atsu 0:d920d64db582 81 *
lynxeyed_atsu 0:d920d64db582 82 * Returns : None
lynxeyed_atsu 0:d920d64db582 83 *
lynxeyed_atsu 0:d920d64db582 84 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 85 */
lynxeyed_atsu 0:d920d64db582 86
lynxeyed_atsu 0:d920d64db582 87 void Host_DelayUS (USB_INT32U delay)
lynxeyed_atsu 0:d920d64db582 88 {
lynxeyed_atsu 0:d920d64db582 89 volatile USB_INT32U i;
lynxeyed_atsu 0:d920d64db582 90
lynxeyed_atsu 0:d920d64db582 91
lynxeyed_atsu 0:d920d64db582 92 for (i = 0; i < (4 * delay); i++) { /* This logic was tested. It gives app. 1 micro sec delay */
lynxeyed_atsu 0:d920d64db582 93 ;
lynxeyed_atsu 0:d920d64db582 94 }
lynxeyed_atsu 0:d920d64db582 95 }
lynxeyed_atsu 0:d920d64db582 96
lynxeyed_atsu 0:d920d64db582 97 // bits of the USB/OTG clock control register
lynxeyed_atsu 0:d920d64db582 98 #define HOST_CLK_EN (1<<0)
lynxeyed_atsu 0:d920d64db582 99 #define DEV_CLK_EN (1<<1)
lynxeyed_atsu 0:d920d64db582 100 #define PORTSEL_CLK_EN (1<<3)
lynxeyed_atsu 0:d920d64db582 101 #define AHB_CLK_EN (1<<4)
lynxeyed_atsu 0:d920d64db582 102
lynxeyed_atsu 0:d920d64db582 103 // bits of the USB/OTG clock status register
lynxeyed_atsu 0:d920d64db582 104 #define HOST_CLK_ON (1<<0)
lynxeyed_atsu 0:d920d64db582 105 #define DEV_CLK_ON (1<<1)
lynxeyed_atsu 0:d920d64db582 106 #define PORTSEL_CLK_ON (1<<3)
lynxeyed_atsu 0:d920d64db582 107 #define AHB_CLK_ON (1<<4)
lynxeyed_atsu 0:d920d64db582 108
lynxeyed_atsu 0:d920d64db582 109 // we need host clock, OTG/portsel clock and AHB clock
lynxeyed_atsu 0:d920d64db582 110 #define CLOCK_MASK (HOST_CLK_EN | PORTSEL_CLK_EN | AHB_CLK_EN)
lynxeyed_atsu 0:d920d64db582 111
lynxeyed_atsu 0:d920d64db582 112 /*
lynxeyed_atsu 0:d920d64db582 113 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 114 * INITIALIZE THE HOST CONTROLLER
lynxeyed_atsu 0:d920d64db582 115 *
lynxeyed_atsu 0:d920d64db582 116 * Description: This function initializes lpc17xx host controller
lynxeyed_atsu 0:d920d64db582 117 *
lynxeyed_atsu 0:d920d64db582 118 * Arguments : None
lynxeyed_atsu 0:d920d64db582 119 *
lynxeyed_atsu 0:d920d64db582 120 * Returns :
lynxeyed_atsu 0:d920d64db582 121 *
lynxeyed_atsu 0:d920d64db582 122 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 123 */
lynxeyed_atsu 0:d920d64db582 124 void Host_Init (void)
lynxeyed_atsu 0:d920d64db582 125 {
lynxeyed_atsu 0:d920d64db582 126 PRINT_Log("In Host_Init\n");
lynxeyed_atsu 0:d920d64db582 127 NVIC_DisableIRQ(USB_IRQn); /* Disable the USB interrupt source */
lynxeyed_atsu 0:d920d64db582 128
lynxeyed_atsu 0:d920d64db582 129 // turn on power for USB
lynxeyed_atsu 0:d920d64db582 130 LPC_SC->PCONP |= (1UL<<31);
lynxeyed_atsu 0:d920d64db582 131 // Enable USB host clock, port selection and AHB clock
lynxeyed_atsu 0:d920d64db582 132 LPC_USB->USBClkCtrl |= CLOCK_MASK;
lynxeyed_atsu 0:d920d64db582 133 // Wait for clocks to become available
lynxeyed_atsu 0:d920d64db582 134 while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
lynxeyed_atsu 0:d920d64db582 135 ;
lynxeyed_atsu 0:d920d64db582 136
lynxeyed_atsu 0:d920d64db582 137 // it seems the bits[0:1] mean the following
lynxeyed_atsu 0:d920d64db582 138 // 0: U1=device, U2=host
lynxeyed_atsu 0:d920d64db582 139 // 1: U1=host, U2=host
lynxeyed_atsu 0:d920d64db582 140 // 2: reserved
lynxeyed_atsu 0:d920d64db582 141 // 3: U1=host, U2=device
lynxeyed_atsu 0:d920d64db582 142 // NB: this register is only available if OTG clock (aka "port select") is enabled!!
lynxeyed_atsu 0:d920d64db582 143 // since we don't care about port 2, set just bit 0 to 1 (U1=host)
lynxeyed_atsu 0:d920d64db582 144 LPC_USB->OTGStCtrl |= 1;
lynxeyed_atsu 0:d920d64db582 145
lynxeyed_atsu 0:d920d64db582 146 // now that we've configured the ports, we can turn off the portsel clock
lynxeyed_atsu 0:d920d64db582 147 LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN;
lynxeyed_atsu 0:d920d64db582 148
lynxeyed_atsu 0:d920d64db582 149 // power pins are not connected on mbed, so we can skip them
lynxeyed_atsu 0:d920d64db582 150 /* P1[18] = USB_UP_LED, 01 */
lynxeyed_atsu 0:d920d64db582 151 /* P1[19] = /USB_PPWR, 10 */
lynxeyed_atsu 0:d920d64db582 152 /* P1[22] = USB_PWRD, 10 */
lynxeyed_atsu 0:d920d64db582 153 /* P1[27] = /USB_OVRCR, 10 */
lynxeyed_atsu 0:d920d64db582 154 /*LPC_PINCON->PINSEL3 &= ~((3<<4) | (3<<6) | (3<<12) | (3<<22));
lynxeyed_atsu 0:d920d64db582 155 LPC_PINCON->PINSEL3 |= ((1<<4)|(2<<6) | (2<<12) | (2<<22)); // 0x00802080
lynxeyed_atsu 0:d920d64db582 156 */
lynxeyed_atsu 0:d920d64db582 157
lynxeyed_atsu 0:d920d64db582 158 // configure USB D+/D- pins
lynxeyed_atsu 0:d920d64db582 159 /* P0[29] = USB_D+, 01 */
lynxeyed_atsu 0:d920d64db582 160 /* P0[30] = USB_D-, 01 */
lynxeyed_atsu 0:d920d64db582 161 LPC_PINCON->PINSEL1 &= ~((3<<26) | (3<<28));
lynxeyed_atsu 0:d920d64db582 162 LPC_PINCON->PINSEL1 |= ((1<<26)|(1<<28)); // 0x14000000
lynxeyed_atsu 0:d920d64db582 163
lynxeyed_atsu 0:d920d64db582 164 PRINT_Log("Initializing Host Stack\n");
lynxeyed_atsu 0:d920d64db582 165
lynxeyed_atsu 0:d920d64db582 166 Hcca = (volatile HCCA *)(HostBuf+0x000);
lynxeyed_atsu 0:d920d64db582 167 TDHead = (volatile HCTD *)(HostBuf+0x100);
lynxeyed_atsu 0:d920d64db582 168 TDTail = (volatile HCTD *)(HostBuf+0x110);
lynxeyed_atsu 0:d920d64db582 169 EDCtrl = (volatile HCED *)(HostBuf+0x120);
lynxeyed_atsu 0:d920d64db582 170 EDBulkIn = (volatile HCED *)(HostBuf+0x130);
lynxeyed_atsu 0:d920d64db582 171 EDBulkOut = (volatile HCED *)(HostBuf+0x140);
lynxeyed_atsu 0:d920d64db582 172 TDBuffer = (volatile USB_INT08U *)(HostBuf+0x150);
lynxeyed_atsu 0:d920d64db582 173
lynxeyed_atsu 0:d920d64db582 174 /* Initialize all the TDs, EDs and HCCA to 0 */
lynxeyed_atsu 0:d920d64db582 175 Host_EDInit(EDCtrl);
lynxeyed_atsu 0:d920d64db582 176 Host_EDInit(EDBulkIn);
lynxeyed_atsu 0:d920d64db582 177 Host_EDInit(EDBulkOut);
lynxeyed_atsu 0:d920d64db582 178 Host_TDInit(TDHead);
lynxeyed_atsu 0:d920d64db582 179 Host_TDInit(TDTail);
lynxeyed_atsu 0:d920d64db582 180 Host_HCCAInit(Hcca);
lynxeyed_atsu 0:d920d64db582 181
lynxeyed_atsu 0:d920d64db582 182 Host_DelayMS(50); /* Wait 50 ms before apply reset */
lynxeyed_atsu 0:d920d64db582 183 LPC_USB->HcControl = 0; /* HARDWARE RESET */
lynxeyed_atsu 0:d920d64db582 184 LPC_USB->HcControlHeadED = 0; /* Initialize Control list head to Zero */
lynxeyed_atsu 0:d920d64db582 185 LPC_USB->HcBulkHeadED = 0; /* Initialize Bulk list head to Zero */
lynxeyed_atsu 0:d920d64db582 186
lynxeyed_atsu 0:d920d64db582 187 /* SOFTWARE RESET */
lynxeyed_atsu 0:d920d64db582 188 LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR;
lynxeyed_atsu 0:d920d64db582 189 LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; /* Write Fm Interval and Largest Data Packet Counter */
lynxeyed_atsu 0:d920d64db582 190
lynxeyed_atsu 0:d920d64db582 191 /* Put HC in operational state */
lynxeyed_atsu 0:d920d64db582 192 LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) | OR_CONTROL_HC_OPER;
lynxeyed_atsu 0:d920d64db582 193 LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC; /* Set Global Power */
lynxeyed_atsu 0:d920d64db582 194
lynxeyed_atsu 0:d920d64db582 195 LPC_USB->HcHCCA = (USB_INT32U)Hcca;
lynxeyed_atsu 0:d920d64db582 196 LPC_USB->HcInterruptStatus |= LPC_USB->HcInterruptStatus; /* Clear Interrrupt Status */
lynxeyed_atsu 0:d920d64db582 197
lynxeyed_atsu 0:d920d64db582 198
lynxeyed_atsu 0:d920d64db582 199 LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE |
lynxeyed_atsu 0:d920d64db582 200 OR_INTR_ENABLE_WDH |
lynxeyed_atsu 0:d920d64db582 201 OR_INTR_ENABLE_RHSC;
lynxeyed_atsu 0:d920d64db582 202
lynxeyed_atsu 0:d920d64db582 203 NVIC_SetPriority(USB_IRQn, 0); /* highest priority */
lynxeyed_atsu 0:d920d64db582 204 /* Enable the USB Interrupt */
lynxeyed_atsu 0:d920d64db582 205 NVIC_EnableIRQ(USB_IRQn);
lynxeyed_atsu 0:d920d64db582 206 PRINT_Log("Host Initialized\n");
lynxeyed_atsu 0:d920d64db582 207 }
lynxeyed_atsu 0:d920d64db582 208
lynxeyed_atsu 0:d920d64db582 209 /*
lynxeyed_atsu 0:d920d64db582 210 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 211 * INTERRUPT SERVICE ROUTINE
lynxeyed_atsu 0:d920d64db582 212 *
lynxeyed_atsu 0:d920d64db582 213 * Description: This function services the interrupt caused by host controller
lynxeyed_atsu 0:d920d64db582 214 *
lynxeyed_atsu 0:d920d64db582 215 * Arguments : None
lynxeyed_atsu 0:d920d64db582 216 *
lynxeyed_atsu 0:d920d64db582 217 * Returns : None
lynxeyed_atsu 0:d920d64db582 218 *
lynxeyed_atsu 0:d920d64db582 219 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 220 */
lynxeyed_atsu 0:d920d64db582 221
lynxeyed_atsu 0:d920d64db582 222 void USB_IRQHandler (void) __irq
lynxeyed_atsu 0:d920d64db582 223 {
lynxeyed_atsu 0:d920d64db582 224 USB_INT32U int_status;
lynxeyed_atsu 0:d920d64db582 225 USB_INT32U ie_status;
lynxeyed_atsu 0:d920d64db582 226
lynxeyed_atsu 0:d920d64db582 227 int_status = LPC_USB->HcInterruptStatus; /* Read Interrupt Status */
lynxeyed_atsu 0:d920d64db582 228 ie_status = LPC_USB->HcInterruptEnable; /* Read Interrupt enable status */
lynxeyed_atsu 0:d920d64db582 229
lynxeyed_atsu 0:d920d64db582 230 if (!(int_status & ie_status)) {
lynxeyed_atsu 0:d920d64db582 231 return;
lynxeyed_atsu 0:d920d64db582 232 } else {
lynxeyed_atsu 0:d920d64db582 233
lynxeyed_atsu 0:d920d64db582 234 int_status = int_status & ie_status;
lynxeyed_atsu 0:d920d64db582 235 if (int_status & OR_INTR_STATUS_RHSC) { /* Root hub status change interrupt */
lynxeyed_atsu 0:d920d64db582 236 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) {
lynxeyed_atsu 0:d920d64db582 237 if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) {
lynxeyed_atsu 0:d920d64db582 238 /*
lynxeyed_atsu 0:d920d64db582 239 * When DRWE is on, Connect Status Change
lynxeyed_atsu 0:d920d64db582 240 * means a remote wakeup event.
lynxeyed_atsu 0:d920d64db582 241 */
lynxeyed_atsu 0:d920d64db582 242 HOST_RhscIntr = 1;// JUST SOMETHING FOR A BREAKPOINT
lynxeyed_atsu 0:d920d64db582 243 }
lynxeyed_atsu 0:d920d64db582 244 else {
lynxeyed_atsu 0:d920d64db582 245 /*
lynxeyed_atsu 0:d920d64db582 246 * When DRWE is off, Connect Status Change
lynxeyed_atsu 0:d920d64db582 247 * is NOT a remote wakeup event
lynxeyed_atsu 0:d920d64db582 248 */
lynxeyed_atsu 0:d920d64db582 249 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) {
lynxeyed_atsu 0:d920d64db582 250 if (!gUSBConnected) {
lynxeyed_atsu 0:d920d64db582 251 HOST_TDControlStatus = 0;
lynxeyed_atsu 0:d920d64db582 252 HOST_WdhIntr = 0;
lynxeyed_atsu 0:d920d64db582 253 HOST_RhscIntr = 1;
lynxeyed_atsu 0:d920d64db582 254 gUSBConnected = 1;
lynxeyed_atsu 0:d920d64db582 255 }
lynxeyed_atsu 0:d920d64db582 256 else
lynxeyed_atsu 0:d920d64db582 257 PRINT_Log("Spurious status change (connected)?\n");
lynxeyed_atsu 0:d920d64db582 258 } else {
lynxeyed_atsu 0:d920d64db582 259 if (gUSBConnected) {
lynxeyed_atsu 0:d920d64db582 260 LPC_USB->HcInterruptEnable = 0; // why do we get multiple disc. rupts???
lynxeyed_atsu 0:d920d64db582 261 HOST_RhscIntr = 0;
lynxeyed_atsu 0:d920d64db582 262 gUSBConnected = 0;
lynxeyed_atsu 0:d920d64db582 263 }
lynxeyed_atsu 0:d920d64db582 264 else
lynxeyed_atsu 0:d920d64db582 265 PRINT_Log("Spurious status change (disconnected)?\n");
lynxeyed_atsu 0:d920d64db582 266 }
lynxeyed_atsu 0:d920d64db582 267 }
lynxeyed_atsu 0:d920d64db582 268 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC;
lynxeyed_atsu 0:d920d64db582 269 }
lynxeyed_atsu 0:d920d64db582 270 if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) {
lynxeyed_atsu 0:d920d64db582 271 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
lynxeyed_atsu 0:d920d64db582 272 }
lynxeyed_atsu 0:d920d64db582 273 }
lynxeyed_atsu 0:d920d64db582 274 if (int_status & OR_INTR_STATUS_WDH) { /* Writeback Done Head interrupt */
lynxeyed_atsu 0:d920d64db582 275 HOST_WdhIntr = 1;
lynxeyed_atsu 0:d920d64db582 276 HOST_TDControlStatus = (TDHead->Control >> 28) & 0xf;
lynxeyed_atsu 0:d920d64db582 277 }
lynxeyed_atsu 0:d920d64db582 278 LPC_USB->HcInterruptStatus = int_status; /* Clear interrupt status register */
lynxeyed_atsu 0:d920d64db582 279 }
lynxeyed_atsu 0:d920d64db582 280 return;
lynxeyed_atsu 0:d920d64db582 281 }
lynxeyed_atsu 0:d920d64db582 282
lynxeyed_atsu 0:d920d64db582 283 /*
lynxeyed_atsu 0:d920d64db582 284 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 285 * PROCESS TRANSFER DESCRIPTOR
lynxeyed_atsu 0:d920d64db582 286 *
lynxeyed_atsu 0:d920d64db582 287 * Description: This function processes the transfer descriptor
lynxeyed_atsu 0:d920d64db582 288 *
lynxeyed_atsu 0:d920d64db582 289 * Arguments : ed Endpoint descriptor that contains this transfer descriptor
lynxeyed_atsu 0:d920d64db582 290 * token SETUP, IN, OUT
lynxeyed_atsu 0:d920d64db582 291 * buffer Current Buffer Pointer of the transfer descriptor
lynxeyed_atsu 0:d920d64db582 292 * buffer_len Length of the buffer
lynxeyed_atsu 0:d920d64db582 293 *
lynxeyed_atsu 0:d920d64db582 294 * Returns : OK if TD submission is successful
lynxeyed_atsu 0:d920d64db582 295 * ERROR if TD submission fails
lynxeyed_atsu 0:d920d64db582 296 *
lynxeyed_atsu 0:d920d64db582 297 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 298 */
lynxeyed_atsu 0:d920d64db582 299
lynxeyed_atsu 0:d920d64db582 300 USB_INT32S Host_ProcessTD (volatile HCED *ed,
lynxeyed_atsu 0:d920d64db582 301 volatile USB_INT32U token,
lynxeyed_atsu 0:d920d64db582 302 volatile USB_INT08U *buffer,
lynxeyed_atsu 0:d920d64db582 303 USB_INT32U buffer_len)
lynxeyed_atsu 0:d920d64db582 304 {
lynxeyed_atsu 0:d920d64db582 305 volatile USB_INT32U td_toggle;
lynxeyed_atsu 0:d920d64db582 306
lynxeyed_atsu 0:d920d64db582 307
lynxeyed_atsu 0:d920d64db582 308 if (ed == EDCtrl) {
lynxeyed_atsu 0:d920d64db582 309 if (token == TD_SETUP) {
lynxeyed_atsu 0:d920d64db582 310 td_toggle = TD_TOGGLE_0;
lynxeyed_atsu 0:d920d64db582 311 } else {
lynxeyed_atsu 0:d920d64db582 312 td_toggle = TD_TOGGLE_1;
lynxeyed_atsu 0:d920d64db582 313 }
lynxeyed_atsu 0:d920d64db582 314 } else {
lynxeyed_atsu 0:d920d64db582 315 td_toggle = 0;
lynxeyed_atsu 0:d920d64db582 316 }
lynxeyed_atsu 0:d920d64db582 317 TDHead->Control = (TD_ROUNDING |
lynxeyed_atsu 0:d920d64db582 318 token |
lynxeyed_atsu 0:d920d64db582 319 TD_DELAY_INT(0) |
lynxeyed_atsu 0:d920d64db582 320 td_toggle |
lynxeyed_atsu 0:d920d64db582 321 TD_CC);
lynxeyed_atsu 0:d920d64db582 322 TDTail->Control = 0;
lynxeyed_atsu 0:d920d64db582 323 TDHead->CurrBufPtr = (USB_INT32U) buffer;
lynxeyed_atsu 0:d920d64db582 324 TDTail->CurrBufPtr = 0;
lynxeyed_atsu 0:d920d64db582 325 TDHead->Next = (USB_INT32U) TDTail;
lynxeyed_atsu 0:d920d64db582 326 TDTail->Next = 0;
lynxeyed_atsu 0:d920d64db582 327 TDHead->BufEnd = (USB_INT32U)(buffer + (buffer_len - 1));
lynxeyed_atsu 0:d920d64db582 328 TDTail->BufEnd = 0;
lynxeyed_atsu 0:d920d64db582 329
lynxeyed_atsu 0:d920d64db582 330 ed->HeadTd = (USB_INT32U)TDHead | ((ed->HeadTd) & 0x00000002);
lynxeyed_atsu 0:d920d64db582 331 ed->TailTd = (USB_INT32U)TDTail;
lynxeyed_atsu 0:d920d64db582 332 ed->Next = 0;
lynxeyed_atsu 0:d920d64db582 333
lynxeyed_atsu 0:d920d64db582 334 if (ed == EDCtrl) {
lynxeyed_atsu 0:d920d64db582 335 LPC_USB->HcControlHeadED = (USB_INT32U)ed;
lynxeyed_atsu 0:d920d64db582 336 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_CLF;
lynxeyed_atsu 0:d920d64db582 337 LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_CLE;
lynxeyed_atsu 0:d920d64db582 338 } else {
lynxeyed_atsu 0:d920d64db582 339 LPC_USB->HcBulkHeadED = (USB_INT32U)ed;
lynxeyed_atsu 0:d920d64db582 340 LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus | OR_CMD_STATUS_BLF;
lynxeyed_atsu 0:d920d64db582 341 LPC_USB->HcControl = LPC_USB->HcControl | OR_CONTROL_BLE;
lynxeyed_atsu 0:d920d64db582 342 }
lynxeyed_atsu 0:d920d64db582 343
lynxeyed_atsu 0:d920d64db582 344 Host_WDHWait();
lynxeyed_atsu 0:d920d64db582 345
lynxeyed_atsu 0:d920d64db582 346 // if (!(TDHead->Control & 0xF0000000)) {
lynxeyed_atsu 0:d920d64db582 347 if (!HOST_TDControlStatus) {
lynxeyed_atsu 0:d920d64db582 348 return (OK);
lynxeyed_atsu 0:d920d64db582 349 } else {
lynxeyed_atsu 0:d920d64db582 350 return (ERR_TD_FAIL);
lynxeyed_atsu 0:d920d64db582 351 }
lynxeyed_atsu 0:d920d64db582 352 }
lynxeyed_atsu 0:d920d64db582 353
lynxeyed_atsu 0:d920d64db582 354 /*
lynxeyed_atsu 0:d920d64db582 355 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 356 * ENUMERATE THE DEVICE
lynxeyed_atsu 0:d920d64db582 357 *
lynxeyed_atsu 0:d920d64db582 358 * Description: This function is used to enumerate the device connected
lynxeyed_atsu 0:d920d64db582 359 *
lynxeyed_atsu 0:d920d64db582 360 * Arguments : None
lynxeyed_atsu 0:d920d64db582 361 *
lynxeyed_atsu 0:d920d64db582 362 * Returns : None
lynxeyed_atsu 0:d920d64db582 363 *
lynxeyed_atsu 0:d920d64db582 364 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 365 */
lynxeyed_atsu 0:d920d64db582 366
lynxeyed_atsu 0:d920d64db582 367 USB_INT32S Host_EnumDev (void)
lynxeyed_atsu 0:d920d64db582 368 {
lynxeyed_atsu 0:d920d64db582 369 USB_INT32S rc;
lynxeyed_atsu 0:d920d64db582 370
lynxeyed_atsu 0:d920d64db582 371 PRINT_Log("Connect a Mass Storage device\n");
lynxeyed_atsu 0:d920d64db582 372 while (!HOST_RhscIntr)
lynxeyed_atsu 0:d920d64db582 373 __WFI();
lynxeyed_atsu 0:d920d64db582 374 Host_DelayMS(100); /* USB 2.0 spec says atleast 50ms delay beore port reset */
lynxeyed_atsu 0:d920d64db582 375 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS; // Initiate port reset
lynxeyed_atsu 0:d920d64db582 376 while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS)
lynxeyed_atsu 0:d920d64db582 377 __WFI(); // Wait for port reset to complete...
lynxeyed_atsu 0:d920d64db582 378 LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; // ...and clear port reset signal
lynxeyed_atsu 0:d920d64db582 379 Host_DelayMS(200); /* Wait for 100 MS after port reset */
lynxeyed_atsu 0:d920d64db582 380
lynxeyed_atsu 0:d920d64db582 381 EDCtrl->Control = 8 << 16; /* Put max pkt size = 8 */
lynxeyed_atsu 0:d920d64db582 382 /* Read first 8 bytes of device desc */
lynxeyed_atsu 0:d920d64db582 383 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_DEVICE, 0, TDBuffer, 8);
lynxeyed_atsu 0:d920d64db582 384 if (rc != OK) {
lynxeyed_atsu 0:d920d64db582 385 PRINT_Err(rc);
lynxeyed_atsu 0:d920d64db582 386 return (rc);
lynxeyed_atsu 0:d920d64db582 387 }
lynxeyed_atsu 0:d920d64db582 388 EDCtrl->Control = TDBuffer[7] << 16; /* Get max pkt size of endpoint 0 */
lynxeyed_atsu 0:d920d64db582 389 rc = HOST_SET_ADDRESS(1); /* Set the device address to 1 */
lynxeyed_atsu 0:d920d64db582 390 if (rc != OK) {
lynxeyed_atsu 0:d920d64db582 391 PRINT_Err(rc);
lynxeyed_atsu 0:d920d64db582 392 return (rc);
lynxeyed_atsu 0:d920d64db582 393 }
lynxeyed_atsu 0:d920d64db582 394 Host_DelayMS(2);
lynxeyed_atsu 0:d920d64db582 395 EDCtrl->Control = (EDCtrl->Control) | 1; /* Modify control pipe with address 1 */
lynxeyed_atsu 0:d920d64db582 396 /* Get the configuration descriptor */
lynxeyed_atsu 0:d920d64db582 397 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, 9);
lynxeyed_atsu 0:d920d64db582 398 if (rc != OK) {
lynxeyed_atsu 0:d920d64db582 399 PRINT_Err(rc);
lynxeyed_atsu 0:d920d64db582 400 return (rc);
lynxeyed_atsu 0:d920d64db582 401 }
lynxeyed_atsu 0:d920d64db582 402 /* Get the first configuration data */
lynxeyed_atsu 0:d920d64db582 403 rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, ReadLE16U(&TDBuffer[2]));
lynxeyed_atsu 0:d920d64db582 404 if (rc != OK) {
lynxeyed_atsu 0:d920d64db582 405 PRINT_Err(rc);
lynxeyed_atsu 0:d920d64db582 406 return (rc);
lynxeyed_atsu 0:d920d64db582 407 }
lynxeyed_atsu 0:d920d64db582 408 rc = MS_ParseConfiguration(); /* Parse the configuration */
lynxeyed_atsu 0:d920d64db582 409 if (rc != OK) {
lynxeyed_atsu 0:d920d64db582 410 PRINT_Err(rc);
lynxeyed_atsu 0:d920d64db582 411 return (rc);
lynxeyed_atsu 0:d920d64db582 412 }
lynxeyed_atsu 0:d920d64db582 413 rc = USBH_SET_CONFIGURATION(1); /* Select device configuration 1 */
lynxeyed_atsu 0:d920d64db582 414 if (rc != OK) {
lynxeyed_atsu 0:d920d64db582 415 PRINT_Err(rc);
lynxeyed_atsu 0:d920d64db582 416 }
lynxeyed_atsu 0:d920d64db582 417 Host_DelayMS(100); /* Some devices may require this delay */
lynxeyed_atsu 0:d920d64db582 418 return (rc);
lynxeyed_atsu 0:d920d64db582 419 }
lynxeyed_atsu 0:d920d64db582 420
lynxeyed_atsu 0:d920d64db582 421 /*
lynxeyed_atsu 0:d920d64db582 422 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 423 * RECEIVE THE CONTROL INFORMATION
lynxeyed_atsu 0:d920d64db582 424 *
lynxeyed_atsu 0:d920d64db582 425 * Description: This function is used to receive the control information
lynxeyed_atsu 0:d920d64db582 426 *
lynxeyed_atsu 0:d920d64db582 427 * Arguments : bm_request_type
lynxeyed_atsu 0:d920d64db582 428 * b_request
lynxeyed_atsu 0:d920d64db582 429 * w_value
lynxeyed_atsu 0:d920d64db582 430 * w_index
lynxeyed_atsu 0:d920d64db582 431 * w_length
lynxeyed_atsu 0:d920d64db582 432 * buffer
lynxeyed_atsu 0:d920d64db582 433 *
lynxeyed_atsu 0:d920d64db582 434 * Returns : OK if Success
lynxeyed_atsu 0:d920d64db582 435 * ERROR if Failed
lynxeyed_atsu 0:d920d64db582 436 *
lynxeyed_atsu 0:d920d64db582 437 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 438 */
lynxeyed_atsu 0:d920d64db582 439
lynxeyed_atsu 0:d920d64db582 440 USB_INT32S Host_CtrlRecv ( USB_INT08U bm_request_type,
lynxeyed_atsu 0:d920d64db582 441 USB_INT08U b_request,
lynxeyed_atsu 0:d920d64db582 442 USB_INT16U w_value,
lynxeyed_atsu 0:d920d64db582 443 USB_INT16U w_index,
lynxeyed_atsu 0:d920d64db582 444 USB_INT16U w_length,
lynxeyed_atsu 0:d920d64db582 445 volatile USB_INT08U *buffer)
lynxeyed_atsu 0:d920d64db582 446 {
lynxeyed_atsu 0:d920d64db582 447 USB_INT32S rc;
lynxeyed_atsu 0:d920d64db582 448
lynxeyed_atsu 0:d920d64db582 449
lynxeyed_atsu 0:d920d64db582 450 Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
lynxeyed_atsu 0:d920d64db582 451 rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
lynxeyed_atsu 0:d920d64db582 452 if (rc == OK) {
lynxeyed_atsu 0:d920d64db582 453 if (w_length) {
lynxeyed_atsu 0:d920d64db582 454 rc = Host_ProcessTD(EDCtrl, TD_IN, TDBuffer, w_length);
lynxeyed_atsu 0:d920d64db582 455 }
lynxeyed_atsu 0:d920d64db582 456 if (rc == OK) {
lynxeyed_atsu 0:d920d64db582 457 rc = Host_ProcessTD(EDCtrl, TD_OUT, NULL, 0);
lynxeyed_atsu 0:d920d64db582 458 }
lynxeyed_atsu 0:d920d64db582 459 }
lynxeyed_atsu 0:d920d64db582 460 return (rc);
lynxeyed_atsu 0:d920d64db582 461 }
lynxeyed_atsu 0:d920d64db582 462
lynxeyed_atsu 0:d920d64db582 463 /*
lynxeyed_atsu 0:d920d64db582 464 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 465 * SEND THE CONTROL INFORMATION
lynxeyed_atsu 0:d920d64db582 466 *
lynxeyed_atsu 0:d920d64db582 467 * Description: This function is used to send the control information
lynxeyed_atsu 0:d920d64db582 468 *
lynxeyed_atsu 0:d920d64db582 469 * Arguments : None
lynxeyed_atsu 0:d920d64db582 470 *
lynxeyed_atsu 0:d920d64db582 471 * Returns : OK if Success
lynxeyed_atsu 0:d920d64db582 472 * ERR_INVALID_BOOTSIG if Failed
lynxeyed_atsu 0:d920d64db582 473 *
lynxeyed_atsu 0:d920d64db582 474 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 475 */
lynxeyed_atsu 0:d920d64db582 476
lynxeyed_atsu 0:d920d64db582 477 USB_INT32S Host_CtrlSend ( USB_INT08U bm_request_type,
lynxeyed_atsu 0:d920d64db582 478 USB_INT08U b_request,
lynxeyed_atsu 0:d920d64db582 479 USB_INT16U w_value,
lynxeyed_atsu 0:d920d64db582 480 USB_INT16U w_index,
lynxeyed_atsu 0:d920d64db582 481 USB_INT16U w_length,
lynxeyed_atsu 0:d920d64db582 482 volatile USB_INT08U *buffer)
lynxeyed_atsu 0:d920d64db582 483 {
lynxeyed_atsu 0:d920d64db582 484 USB_INT32S rc;
lynxeyed_atsu 0:d920d64db582 485
lynxeyed_atsu 0:d920d64db582 486
lynxeyed_atsu 0:d920d64db582 487 Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
lynxeyed_atsu 0:d920d64db582 488
lynxeyed_atsu 0:d920d64db582 489 rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
lynxeyed_atsu 0:d920d64db582 490 if (rc == OK) {
lynxeyed_atsu 0:d920d64db582 491 if (w_length) {
lynxeyed_atsu 0:d920d64db582 492 rc = Host_ProcessTD(EDCtrl, TD_OUT, TDBuffer, w_length);
lynxeyed_atsu 0:d920d64db582 493 }
lynxeyed_atsu 0:d920d64db582 494 if (rc == OK) {
lynxeyed_atsu 0:d920d64db582 495 rc = Host_ProcessTD(EDCtrl, TD_IN, NULL, 0);
lynxeyed_atsu 0:d920d64db582 496 }
lynxeyed_atsu 0:d920d64db582 497 }
lynxeyed_atsu 0:d920d64db582 498 return (rc);
lynxeyed_atsu 0:d920d64db582 499 }
lynxeyed_atsu 0:d920d64db582 500
lynxeyed_atsu 0:d920d64db582 501 /*
lynxeyed_atsu 0:d920d64db582 502 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 503 * FILL SETUP PACKET
lynxeyed_atsu 0:d920d64db582 504 *
lynxeyed_atsu 0:d920d64db582 505 * Description: This function is used to fill the setup packet
lynxeyed_atsu 0:d920d64db582 506 *
lynxeyed_atsu 0:d920d64db582 507 * Arguments : None
lynxeyed_atsu 0:d920d64db582 508 *
lynxeyed_atsu 0:d920d64db582 509 * Returns : OK if Success
lynxeyed_atsu 0:d920d64db582 510 * ERR_INVALID_BOOTSIG if Failed
lynxeyed_atsu 0:d920d64db582 511 *
lynxeyed_atsu 0:d920d64db582 512 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 513 */
lynxeyed_atsu 0:d920d64db582 514
lynxeyed_atsu 0:d920d64db582 515 void Host_FillSetup (USB_INT08U bm_request_type,
lynxeyed_atsu 0:d920d64db582 516 USB_INT08U b_request,
lynxeyed_atsu 0:d920d64db582 517 USB_INT16U w_value,
lynxeyed_atsu 0:d920d64db582 518 USB_INT16U w_index,
lynxeyed_atsu 0:d920d64db582 519 USB_INT16U w_length)
lynxeyed_atsu 0:d920d64db582 520 {
lynxeyed_atsu 0:d920d64db582 521 int i;
lynxeyed_atsu 0:d920d64db582 522 for (i=0;i<w_length;i++)
lynxeyed_atsu 0:d920d64db582 523 TDBuffer[i] = 0;
lynxeyed_atsu 0:d920d64db582 524
lynxeyed_atsu 0:d920d64db582 525 TDBuffer[0] = bm_request_type;
lynxeyed_atsu 0:d920d64db582 526 TDBuffer[1] = b_request;
lynxeyed_atsu 0:d920d64db582 527 WriteLE16U(&TDBuffer[2], w_value);
lynxeyed_atsu 0:d920d64db582 528 WriteLE16U(&TDBuffer[4], w_index);
lynxeyed_atsu 0:d920d64db582 529 WriteLE16U(&TDBuffer[6], w_length);
lynxeyed_atsu 0:d920d64db582 530 }
lynxeyed_atsu 0:d920d64db582 531
lynxeyed_atsu 0:d920d64db582 532
lynxeyed_atsu 0:d920d64db582 533
lynxeyed_atsu 0:d920d64db582 534 /*
lynxeyed_atsu 0:d920d64db582 535 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 536 * INITIALIZE THE TRANSFER DESCRIPTOR
lynxeyed_atsu 0:d920d64db582 537 *
lynxeyed_atsu 0:d920d64db582 538 * Description: This function initializes transfer descriptor
lynxeyed_atsu 0:d920d64db582 539 *
lynxeyed_atsu 0:d920d64db582 540 * Arguments : Pointer to TD structure
lynxeyed_atsu 0:d920d64db582 541 *
lynxeyed_atsu 0:d920d64db582 542 * Returns : None
lynxeyed_atsu 0:d920d64db582 543 *
lynxeyed_atsu 0:d920d64db582 544 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 545 */
lynxeyed_atsu 0:d920d64db582 546
lynxeyed_atsu 0:d920d64db582 547 void Host_TDInit (volatile HCTD *td)
lynxeyed_atsu 0:d920d64db582 548 {
lynxeyed_atsu 0:d920d64db582 549
lynxeyed_atsu 0:d920d64db582 550 td->Control = 0;
lynxeyed_atsu 0:d920d64db582 551 td->CurrBufPtr = 0;
lynxeyed_atsu 0:d920d64db582 552 td->Next = 0;
lynxeyed_atsu 0:d920d64db582 553 td->BufEnd = 0;
lynxeyed_atsu 0:d920d64db582 554 }
lynxeyed_atsu 0:d920d64db582 555
lynxeyed_atsu 0:d920d64db582 556 /*
lynxeyed_atsu 0:d920d64db582 557 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 558 * INITIALIZE THE ENDPOINT DESCRIPTOR
lynxeyed_atsu 0:d920d64db582 559 *
lynxeyed_atsu 0:d920d64db582 560 * Description: This function initializes endpoint descriptor
lynxeyed_atsu 0:d920d64db582 561 *
lynxeyed_atsu 0:d920d64db582 562 * Arguments : Pointer to ED strcuture
lynxeyed_atsu 0:d920d64db582 563 *
lynxeyed_atsu 0:d920d64db582 564 * Returns : None
lynxeyed_atsu 0:d920d64db582 565 *
lynxeyed_atsu 0:d920d64db582 566 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 567 */
lynxeyed_atsu 0:d920d64db582 568
lynxeyed_atsu 0:d920d64db582 569 void Host_EDInit (volatile HCED *ed)
lynxeyed_atsu 0:d920d64db582 570 {
lynxeyed_atsu 0:d920d64db582 571
lynxeyed_atsu 0:d920d64db582 572 ed->Control = 0;
lynxeyed_atsu 0:d920d64db582 573 ed->TailTd = 0;
lynxeyed_atsu 0:d920d64db582 574 ed->HeadTd = 0;
lynxeyed_atsu 0:d920d64db582 575 ed->Next = 0;
lynxeyed_atsu 0:d920d64db582 576 }
lynxeyed_atsu 0:d920d64db582 577
lynxeyed_atsu 0:d920d64db582 578 /*
lynxeyed_atsu 0:d920d64db582 579 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 580 * INITIALIZE HOST CONTROLLER COMMUNICATIONS AREA
lynxeyed_atsu 0:d920d64db582 581 *
lynxeyed_atsu 0:d920d64db582 582 * Description: This function initializes host controller communications area
lynxeyed_atsu 0:d920d64db582 583 *
lynxeyed_atsu 0:d920d64db582 584 * Arguments : Pointer to HCCA
lynxeyed_atsu 0:d920d64db582 585 *
lynxeyed_atsu 0:d920d64db582 586 * Returns :
lynxeyed_atsu 0:d920d64db582 587 *
lynxeyed_atsu 0:d920d64db582 588 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 589 */
lynxeyed_atsu 0:d920d64db582 590
lynxeyed_atsu 0:d920d64db582 591 void Host_HCCAInit (volatile HCCA *hcca)
lynxeyed_atsu 0:d920d64db582 592 {
lynxeyed_atsu 0:d920d64db582 593 USB_INT32U i;
lynxeyed_atsu 0:d920d64db582 594
lynxeyed_atsu 0:d920d64db582 595
lynxeyed_atsu 0:d920d64db582 596 for (i = 0; i < 32; i++) {
lynxeyed_atsu 0:d920d64db582 597
lynxeyed_atsu 0:d920d64db582 598 hcca->IntTable[i] = 0;
lynxeyed_atsu 0:d920d64db582 599 hcca->FrameNumber = 0;
lynxeyed_atsu 0:d920d64db582 600 hcca->DoneHead = 0;
lynxeyed_atsu 0:d920d64db582 601 }
lynxeyed_atsu 0:d920d64db582 602
lynxeyed_atsu 0:d920d64db582 603 }
lynxeyed_atsu 0:d920d64db582 604
lynxeyed_atsu 0:d920d64db582 605 /*
lynxeyed_atsu 0:d920d64db582 606 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 607 * WAIT FOR WDH INTERRUPT
lynxeyed_atsu 0:d920d64db582 608 *
lynxeyed_atsu 0:d920d64db582 609 * Description: This function is infinite loop which breaks when ever a WDH interrupt rises
lynxeyed_atsu 0:d920d64db582 610 *
lynxeyed_atsu 0:d920d64db582 611 * Arguments : None
lynxeyed_atsu 0:d920d64db582 612 *
lynxeyed_atsu 0:d920d64db582 613 * Returns : None
lynxeyed_atsu 0:d920d64db582 614 *
lynxeyed_atsu 0:d920d64db582 615 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 616 */
lynxeyed_atsu 0:d920d64db582 617
lynxeyed_atsu 0:d920d64db582 618 void Host_WDHWait (void)
lynxeyed_atsu 0:d920d64db582 619 {
lynxeyed_atsu 0:d920d64db582 620 while (!HOST_WdhIntr)
lynxeyed_atsu 0:d920d64db582 621 __WFI();
lynxeyed_atsu 0:d920d64db582 622
lynxeyed_atsu 0:d920d64db582 623 HOST_WdhIntr = 0;
lynxeyed_atsu 0:d920d64db582 624 }
lynxeyed_atsu 0:d920d64db582 625
lynxeyed_atsu 0:d920d64db582 626 /*
lynxeyed_atsu 0:d920d64db582 627 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 628 * READ LE 32U
lynxeyed_atsu 0:d920d64db582 629 *
lynxeyed_atsu 0:d920d64db582 630 * Description: This function is used to read an unsigned integer from a character buffer in the platform
lynxeyed_atsu 0:d920d64db582 631 * containing little endian processor
lynxeyed_atsu 0:d920d64db582 632 *
lynxeyed_atsu 0:d920d64db582 633 * Arguments : pmem Pointer to the character buffer
lynxeyed_atsu 0:d920d64db582 634 *
lynxeyed_atsu 0:d920d64db582 635 * Returns : val Unsigned integer
lynxeyed_atsu 0:d920d64db582 636 *
lynxeyed_atsu 0:d920d64db582 637 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 638 */
lynxeyed_atsu 0:d920d64db582 639
lynxeyed_atsu 0:d920d64db582 640 USB_INT32U ReadLE32U (volatile USB_INT08U *pmem)
lynxeyed_atsu 0:d920d64db582 641 {
lynxeyed_atsu 0:d920d64db582 642 USB_INT32U val = *(USB_INT32U*)pmem;
lynxeyed_atsu 0:d920d64db582 643 #ifdef __BIG_ENDIAN
lynxeyed_atsu 0:d920d64db582 644 return __REV(val);
lynxeyed_atsu 0:d920d64db582 645 #else
lynxeyed_atsu 0:d920d64db582 646 return val;
lynxeyed_atsu 0:d920d64db582 647 #endif
lynxeyed_atsu 0:d920d64db582 648 }
lynxeyed_atsu 0:d920d64db582 649
lynxeyed_atsu 0:d920d64db582 650 /*
lynxeyed_atsu 0:d920d64db582 651 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 652 * WRITE LE 32U
lynxeyed_atsu 0:d920d64db582 653 *
lynxeyed_atsu 0:d920d64db582 654 * Description: This function is used to write an unsigned integer into a charecter buffer in the platform
lynxeyed_atsu 0:d920d64db582 655 * containing little endian processor.
lynxeyed_atsu 0:d920d64db582 656 *
lynxeyed_atsu 0:d920d64db582 657 * Arguments : pmem Pointer to the charecter buffer
lynxeyed_atsu 0:d920d64db582 658 * val Integer value to be placed in the charecter buffer
lynxeyed_atsu 0:d920d64db582 659 *
lynxeyed_atsu 0:d920d64db582 660 * Returns : None
lynxeyed_atsu 0:d920d64db582 661 *
lynxeyed_atsu 0:d920d64db582 662 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 663 */
lynxeyed_atsu 0:d920d64db582 664
lynxeyed_atsu 0:d920d64db582 665 void WriteLE32U (volatile USB_INT08U *pmem,
lynxeyed_atsu 0:d920d64db582 666 USB_INT32U val)
lynxeyed_atsu 0:d920d64db582 667 {
lynxeyed_atsu 0:d920d64db582 668 #ifdef __BIG_ENDIAN
lynxeyed_atsu 0:d920d64db582 669 *(USB_INT32U*)pmem = __REV(val);
lynxeyed_atsu 0:d920d64db582 670 #else
lynxeyed_atsu 0:d920d64db582 671 *(USB_INT32U*)pmem = val;
lynxeyed_atsu 0:d920d64db582 672 #endif
lynxeyed_atsu 0:d920d64db582 673 }
lynxeyed_atsu 0:d920d64db582 674
lynxeyed_atsu 0:d920d64db582 675 /*
lynxeyed_atsu 0:d920d64db582 676 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 677 * READ LE 16U
lynxeyed_atsu 0:d920d64db582 678 *
lynxeyed_atsu 0:d920d64db582 679 * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
lynxeyed_atsu 0:d920d64db582 680 * containing little endian processor
lynxeyed_atsu 0:d920d64db582 681 *
lynxeyed_atsu 0:d920d64db582 682 * Arguments : pmem Pointer to the charecter buffer
lynxeyed_atsu 0:d920d64db582 683 *
lynxeyed_atsu 0:d920d64db582 684 * Returns : val Unsigned short integer
lynxeyed_atsu 0:d920d64db582 685 *
lynxeyed_atsu 0:d920d64db582 686 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 687 */
lynxeyed_atsu 0:d920d64db582 688
lynxeyed_atsu 0:d920d64db582 689 USB_INT16U ReadLE16U (volatile USB_INT08U *pmem)
lynxeyed_atsu 0:d920d64db582 690 {
lynxeyed_atsu 0:d920d64db582 691 USB_INT16U val = *(USB_INT16U*)pmem;
lynxeyed_atsu 0:d920d64db582 692 #ifdef __BIG_ENDIAN
lynxeyed_atsu 0:d920d64db582 693 return __REV16(val);
lynxeyed_atsu 0:d920d64db582 694 #else
lynxeyed_atsu 0:d920d64db582 695 return val;
lynxeyed_atsu 0:d920d64db582 696 #endif
lynxeyed_atsu 0:d920d64db582 697 }
lynxeyed_atsu 0:d920d64db582 698
lynxeyed_atsu 0:d920d64db582 699 /*
lynxeyed_atsu 0:d920d64db582 700 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 701 * WRITE LE 16U
lynxeyed_atsu 0:d920d64db582 702 *
lynxeyed_atsu 0:d920d64db582 703 * Description: This function is used to write an unsigned short integer into a charecter buffer in the
lynxeyed_atsu 0:d920d64db582 704 * platform containing little endian processor
lynxeyed_atsu 0:d920d64db582 705 *
lynxeyed_atsu 0:d920d64db582 706 * Arguments : pmem Pointer to the charecter buffer
lynxeyed_atsu 0:d920d64db582 707 * val Value to be placed in the charecter buffer
lynxeyed_atsu 0:d920d64db582 708 *
lynxeyed_atsu 0:d920d64db582 709 * Returns : None
lynxeyed_atsu 0:d920d64db582 710 *
lynxeyed_atsu 0:d920d64db582 711 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 712 */
lynxeyed_atsu 0:d920d64db582 713
lynxeyed_atsu 0:d920d64db582 714 void WriteLE16U (volatile USB_INT08U *pmem,
lynxeyed_atsu 0:d920d64db582 715 USB_INT16U val)
lynxeyed_atsu 0:d920d64db582 716 {
lynxeyed_atsu 0:d920d64db582 717 #ifdef __BIG_ENDIAN
lynxeyed_atsu 0:d920d64db582 718 *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF);
lynxeyed_atsu 0:d920d64db582 719 #else
lynxeyed_atsu 0:d920d64db582 720 *(USB_INT16U*)pmem = val;
lynxeyed_atsu 0:d920d64db582 721 #endif
lynxeyed_atsu 0:d920d64db582 722 }
lynxeyed_atsu 0:d920d64db582 723
lynxeyed_atsu 0:d920d64db582 724 /*
lynxeyed_atsu 0:d920d64db582 725 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 726 * READ BE 32U
lynxeyed_atsu 0:d920d64db582 727 *
lynxeyed_atsu 0:d920d64db582 728 * Description: This function is used to read an unsigned integer from a charecter buffer in the platform
lynxeyed_atsu 0:d920d64db582 729 * containing big endian processor
lynxeyed_atsu 0:d920d64db582 730 *
lynxeyed_atsu 0:d920d64db582 731 * Arguments : pmem Pointer to the charecter buffer
lynxeyed_atsu 0:d920d64db582 732 *
lynxeyed_atsu 0:d920d64db582 733 * Returns : val Unsigned integer
lynxeyed_atsu 0:d920d64db582 734 *
lynxeyed_atsu 0:d920d64db582 735 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 736 */
lynxeyed_atsu 0:d920d64db582 737
lynxeyed_atsu 0:d920d64db582 738 USB_INT32U ReadBE32U (volatile USB_INT08U *pmem)
lynxeyed_atsu 0:d920d64db582 739 {
lynxeyed_atsu 0:d920d64db582 740 USB_INT32U val = *(USB_INT32U*)pmem;
lynxeyed_atsu 0:d920d64db582 741 #ifdef __BIG_ENDIAN
lynxeyed_atsu 0:d920d64db582 742 return val;
lynxeyed_atsu 0:d920d64db582 743 #else
lynxeyed_atsu 0:d920d64db582 744 return __REV(val);
lynxeyed_atsu 0:d920d64db582 745 #endif
lynxeyed_atsu 0:d920d64db582 746 }
lynxeyed_atsu 0:d920d64db582 747
lynxeyed_atsu 0:d920d64db582 748 /*
lynxeyed_atsu 0:d920d64db582 749 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 750 * WRITE BE 32U
lynxeyed_atsu 0:d920d64db582 751 *
lynxeyed_atsu 0:d920d64db582 752 * Description: This function is used to write an unsigned integer into a charecter buffer in the platform
lynxeyed_atsu 0:d920d64db582 753 * containing big endian processor
lynxeyed_atsu 0:d920d64db582 754 *
lynxeyed_atsu 0:d920d64db582 755 * Arguments : pmem Pointer to the charecter buffer
lynxeyed_atsu 0:d920d64db582 756 * val Value to be placed in the charecter buffer
lynxeyed_atsu 0:d920d64db582 757 *
lynxeyed_atsu 0:d920d64db582 758 * Returns : None
lynxeyed_atsu 0:d920d64db582 759 *
lynxeyed_atsu 0:d920d64db582 760 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 761 */
lynxeyed_atsu 0:d920d64db582 762
lynxeyed_atsu 0:d920d64db582 763 void WriteBE32U (volatile USB_INT08U *pmem,
lynxeyed_atsu 0:d920d64db582 764 USB_INT32U val)
lynxeyed_atsu 0:d920d64db582 765 {
lynxeyed_atsu 0:d920d64db582 766 #ifdef __BIG_ENDIAN
lynxeyed_atsu 0:d920d64db582 767 *(USB_INT32U*)pmem = val;
lynxeyed_atsu 0:d920d64db582 768 #else
lynxeyed_atsu 0:d920d64db582 769 *(USB_INT32U*)pmem = __REV(val);
lynxeyed_atsu 0:d920d64db582 770 #endif
lynxeyed_atsu 0:d920d64db582 771 }
lynxeyed_atsu 0:d920d64db582 772
lynxeyed_atsu 0:d920d64db582 773 /*
lynxeyed_atsu 0:d920d64db582 774 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 775 * READ BE 16U
lynxeyed_atsu 0:d920d64db582 776 *
lynxeyed_atsu 0:d920d64db582 777 * Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
lynxeyed_atsu 0:d920d64db582 778 * containing big endian processor
lynxeyed_atsu 0:d920d64db582 779 *
lynxeyed_atsu 0:d920d64db582 780 * Arguments : pmem Pointer to the charecter buffer
lynxeyed_atsu 0:d920d64db582 781 *
lynxeyed_atsu 0:d920d64db582 782 * Returns : val Unsigned short integer
lynxeyed_atsu 0:d920d64db582 783 *
lynxeyed_atsu 0:d920d64db582 784 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 785 */
lynxeyed_atsu 0:d920d64db582 786
lynxeyed_atsu 0:d920d64db582 787 USB_INT16U ReadBE16U (volatile USB_INT08U *pmem)
lynxeyed_atsu 0:d920d64db582 788 {
lynxeyed_atsu 0:d920d64db582 789 USB_INT16U val = *(USB_INT16U*)pmem;
lynxeyed_atsu 0:d920d64db582 790 #ifdef __BIG_ENDIAN
lynxeyed_atsu 0:d920d64db582 791 return val;
lynxeyed_atsu 0:d920d64db582 792 #else
lynxeyed_atsu 0:d920d64db582 793 return __REV16(val);
lynxeyed_atsu 0:d920d64db582 794 #endif
lynxeyed_atsu 0:d920d64db582 795 }
lynxeyed_atsu 0:d920d64db582 796
lynxeyed_atsu 0:d920d64db582 797 /*
lynxeyed_atsu 0:d920d64db582 798 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 799 * WRITE BE 16U
lynxeyed_atsu 0:d920d64db582 800 *
lynxeyed_atsu 0:d920d64db582 801 * Description: This function is used to write an unsigned short integer into the charecter buffer in the
lynxeyed_atsu 0:d920d64db582 802 * platform containing big endian processor
lynxeyed_atsu 0:d920d64db582 803 *
lynxeyed_atsu 0:d920d64db582 804 * Arguments : pmem Pointer to the charecter buffer
lynxeyed_atsu 0:d920d64db582 805 * val Value to be placed in the charecter buffer
lynxeyed_atsu 0:d920d64db582 806 *
lynxeyed_atsu 0:d920d64db582 807 * Returns : None
lynxeyed_atsu 0:d920d64db582 808 *
lynxeyed_atsu 0:d920d64db582 809 **************************************************************************************************************
lynxeyed_atsu 0:d920d64db582 810 */
lynxeyed_atsu 0:d920d64db582 811
lynxeyed_atsu 0:d920d64db582 812 void WriteBE16U (volatile USB_INT08U *pmem,
lynxeyed_atsu 0:d920d64db582 813 USB_INT16U val)
lynxeyed_atsu 0:d920d64db582 814 {
lynxeyed_atsu 0:d920d64db582 815 #ifdef __BIG_ENDIAN
lynxeyed_atsu 0:d920d64db582 816 *(USB_INT16U*)pmem = val;
lynxeyed_atsu 0:d920d64db582 817 #else
lynxeyed_atsu 0:d920d64db582 818 *(USB_INT16U*)pmem = (__REV16(val) & 0xFFFF);
lynxeyed_atsu 0:d920d64db582 819 #endif
lynxeyed_atsu 0:d920d64db582 820 }