dev_board_test - mbed Dev board test program

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Sukkin Pang / Mbed 2 deprecated dev_board_test

mbed Dev board test program

Dependencies: EthernetNetIf mbed HTTPServer SerialLCD

USBHostLite/usbhost_lpc17xx.c@0:0f36b9fac4c5, 2011-07-11 (annotated)

Committer:: pangsk
Date:: Mon Jul 11 15:02:04 2011 +0000
Revision:: 0:0f36b9fac4c5

Who changed what in which revision?

User	Revision	Line number	New contents of line
pangsk	0:0f36b9fac4c5	1	/*
pangsk	0:0f36b9fac4c5	2	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	3	* NXP USB Host Stack
pangsk	0:0f36b9fac4c5	4	*
pangsk	0:0f36b9fac4c5	5	* (c) Copyright 2008, NXP SemiConductors
pangsk	0:0f36b9fac4c5	6	* (c) Copyright 2008, OnChip Technologies LLC
pangsk	0:0f36b9fac4c5	7	* All Rights Reserved
pangsk	0:0f36b9fac4c5	8	*
pangsk	0:0f36b9fac4c5	9	* www.nxp.com
pangsk	0:0f36b9fac4c5	10	* www.onchiptech.com
pangsk	0:0f36b9fac4c5	11	*
pangsk	0:0f36b9fac4c5	12	* File : usbhost_lpc17xx.c
pangsk	0:0f36b9fac4c5	13	* Programmer(s) : Ravikanth.P
pangsk	0:0f36b9fac4c5	14	* Version :
pangsk	0:0f36b9fac4c5	15	*
pangsk	0:0f36b9fac4c5	16	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	17	*/
pangsk	0:0f36b9fac4c5	18
pangsk	0:0f36b9fac4c5	19	/*
pangsk	0:0f36b9fac4c5	20	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	21	* INCLUDE HEADER FILES
pangsk	0:0f36b9fac4c5	22	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	23	*/
pangsk	0:0f36b9fac4c5	24
pangsk	0:0f36b9fac4c5	25	#include "usbhost_lpc17xx.h"
pangsk	0:0f36b9fac4c5	26
pangsk	0:0f36b9fac4c5	27	/*
pangsk	0:0f36b9fac4c5	28	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	29	* GLOBAL VARIABLES
pangsk	0:0f36b9fac4c5	30	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	31	*/
pangsk	0:0f36b9fac4c5	32	int gUSBConnected;
pangsk	0:0f36b9fac4c5	33
pangsk	0:0f36b9fac4c5	34	volatile USB_INT32U HOST_RhscIntr = 0; /* Root Hub Status Change interrupt */
pangsk	0:0f36b9fac4c5	35	volatile USB_INT32U HOST_WdhIntr = 0; /* Semaphore to wait until the TD is submitted */
pangsk	0:0f36b9fac4c5	36	volatile USB_INT08U HOST_TDControlStatus = 0;
pangsk	0:0f36b9fac4c5	37	volatile HCED EDCtrl; / Control endpoint descriptor structure */
pangsk	0:0f36b9fac4c5	38	volatile HCED EDBulkIn; / BulkIn endpoint descriptor structure */
pangsk	0:0f36b9fac4c5	39	volatile HCED EDBulkOut; / BulkOut endpoint descriptor structure */
pangsk	0:0f36b9fac4c5	40	volatile HCTD TDHead; / Head transfer descriptor structure */
pangsk	0:0f36b9fac4c5	41	volatile HCTD TDTail; / Tail transfer descriptor structure */
pangsk	0:0f36b9fac4c5	42	volatile HCCA Hcca; / Host Controller Communications Area structure */
pangsk	0:0f36b9fac4c5	43	USB_INT16U TDBufNonVol; / Identical to TDBuffer just to reduce compiler warnings */
pangsk	0:0f36b9fac4c5	44	volatile USB_INT08U TDBuffer; / Current Buffer Pointer of transfer descriptor */
pangsk	0:0f36b9fac4c5	45
pangsk	0:0f36b9fac4c5	46	// USB host structures
pangsk	0:0f36b9fac4c5	47	// AHB SRAM block 1
pangsk	0:0f36b9fac4c5	48	#define HOSTBASEADDR 0x2007C000
pangsk	0:0f36b9fac4c5	49	// reserve memory for the linker
pangsk	0:0f36b9fac4c5	50	static USB_INT08U HostBuf[0x200] __attribute__((at(HOSTBASEADDR)));
pangsk	0:0f36b9fac4c5	51	/*
pangsk	0:0f36b9fac4c5	52	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	53	* DELAY IN MILLI SECONDS
pangsk	0:0f36b9fac4c5	54	*
pangsk	0:0f36b9fac4c5	55	* Description: This function provides a delay in milli seconds
pangsk	0:0f36b9fac4c5	56	*
pangsk	0:0f36b9fac4c5	57	* Arguments : delay The delay required
pangsk	0:0f36b9fac4c5	58	*
pangsk	0:0f36b9fac4c5	59	* Returns : None
pangsk	0:0f36b9fac4c5	60	*
pangsk	0:0f36b9fac4c5	61	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	62	*/
pangsk	0:0f36b9fac4c5	63
pangsk	0:0f36b9fac4c5	64	void Host_DelayMS (USB_INT32U delay)
pangsk	0:0f36b9fac4c5	65	{
pangsk	0:0f36b9fac4c5	66	volatile USB_INT32U i;
pangsk	0:0f36b9fac4c5	67
pangsk	0:0f36b9fac4c5	68
pangsk	0:0f36b9fac4c5	69	for (i = 0; i < delay; i++) {
pangsk	0:0f36b9fac4c5	70	Host_DelayUS(1000);
pangsk	0:0f36b9fac4c5	71	}
pangsk	0:0f36b9fac4c5	72	}
pangsk	0:0f36b9fac4c5	73
pangsk	0:0f36b9fac4c5	74	/*
pangsk	0:0f36b9fac4c5	75	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	76	* DELAY IN MICRO SECONDS
pangsk	0:0f36b9fac4c5	77	*
pangsk	0:0f36b9fac4c5	78	* Description: This function provides a delay in micro seconds
pangsk	0:0f36b9fac4c5	79	*
pangsk	0:0f36b9fac4c5	80	* Arguments : delay The delay required
pangsk	0:0f36b9fac4c5	81	*
pangsk	0:0f36b9fac4c5	82	* Returns : None
pangsk	0:0f36b9fac4c5	83	*
pangsk	0:0f36b9fac4c5	84	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	85	*/
pangsk	0:0f36b9fac4c5	86
pangsk	0:0f36b9fac4c5	87	void Host_DelayUS (USB_INT32U delay)
pangsk	0:0f36b9fac4c5	88	{
pangsk	0:0f36b9fac4c5	89	volatile USB_INT32U i;
pangsk	0:0f36b9fac4c5	90
pangsk	0:0f36b9fac4c5	91
pangsk	0:0f36b9fac4c5	92	for (i = 0; i < (4 * delay); i++) { /* This logic was tested. It gives app. 1 micro sec delay */
pangsk	0:0f36b9fac4c5	93	;
pangsk	0:0f36b9fac4c5	94	}
pangsk	0:0f36b9fac4c5	95	}
pangsk	0:0f36b9fac4c5	96
pangsk	0:0f36b9fac4c5	97	// bits of the USB/OTG clock control register
pangsk	0:0f36b9fac4c5	98	#define HOST_CLK_EN (1<<0)
pangsk	0:0f36b9fac4c5	99	#define DEV_CLK_EN (1<<1)
pangsk	0:0f36b9fac4c5	100	#define PORTSEL_CLK_EN (1<<3)
pangsk	0:0f36b9fac4c5	101	#define AHB_CLK_EN (1<<4)
pangsk	0:0f36b9fac4c5	102
pangsk	0:0f36b9fac4c5	103	// bits of the USB/OTG clock status register
pangsk	0:0f36b9fac4c5	104	#define HOST_CLK_ON (1<<0)
pangsk	0:0f36b9fac4c5	105	#define DEV_CLK_ON (1<<1)
pangsk	0:0f36b9fac4c5	106	#define PORTSEL_CLK_ON (1<<3)
pangsk	0:0f36b9fac4c5	107	#define AHB_CLK_ON (1<<4)
pangsk	0:0f36b9fac4c5	108
pangsk	0:0f36b9fac4c5	109	// we need host clock, OTG/portsel clock and AHB clock
pangsk	0:0f36b9fac4c5	110	#define CLOCK_MASK (HOST_CLK_EN \| PORTSEL_CLK_EN \| AHB_CLK_EN)
pangsk	0:0f36b9fac4c5	111
pangsk	0:0f36b9fac4c5	112	/*
pangsk	0:0f36b9fac4c5	113	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	114	* INITIALIZE THE HOST CONTROLLER
pangsk	0:0f36b9fac4c5	115	*
pangsk	0:0f36b9fac4c5	116	* Description: This function initializes lpc17xx host controller
pangsk	0:0f36b9fac4c5	117	*
pangsk	0:0f36b9fac4c5	118	* Arguments : None
pangsk	0:0f36b9fac4c5	119	*
pangsk	0:0f36b9fac4c5	120	* Returns :
pangsk	0:0f36b9fac4c5	121	*
pangsk	0:0f36b9fac4c5	122	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	123	*/
pangsk	0:0f36b9fac4c5	124	void Host_Init (void)
pangsk	0:0f36b9fac4c5	125	{
pangsk	0:0f36b9fac4c5	126	PRINT_Log("In Host_Init\n");
pangsk	0:0f36b9fac4c5	127	NVIC_DisableIRQ(USB_IRQn); /* Disable the USB interrupt source */
pangsk	0:0f36b9fac4c5	128
pangsk	0:0f36b9fac4c5	129	// turn on power for USB
pangsk	0:0f36b9fac4c5	130	LPC_SC->PCONP \|= (1UL<<31);
pangsk	0:0f36b9fac4c5	131	// Enable USB host clock, port selection and AHB clock
pangsk	0:0f36b9fac4c5	132	LPC_USB->USBClkCtrl \|= CLOCK_MASK;
pangsk	0:0f36b9fac4c5	133	// Wait for clocks to become available
pangsk	0:0f36b9fac4c5	134	while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
pangsk	0:0f36b9fac4c5	135	;
pangsk	0:0f36b9fac4c5	136
pangsk	0:0f36b9fac4c5	137	// it seems the bits[0:1] mean the following
pangsk	0:0f36b9fac4c5	138	// 0: U1=device, U2=host
pangsk	0:0f36b9fac4c5	139	// 1: U1=host, U2=host
pangsk	0:0f36b9fac4c5	140	// 2: reserved
pangsk	0:0f36b9fac4c5	141	// 3: U1=host, U2=device
pangsk	0:0f36b9fac4c5	142	// NB: this register is only available if OTG clock (aka "port select") is enabled!!
pangsk	0:0f36b9fac4c5	143	// since we don't care about port 2, set just bit 0 to 1 (U1=host)
pangsk	0:0f36b9fac4c5	144	LPC_USB->OTGStCtrl \|= 1;
pangsk	0:0f36b9fac4c5	145
pangsk	0:0f36b9fac4c5	146	// now that we've configured the ports, we can turn off the portsel clock
pangsk	0:0f36b9fac4c5	147	LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN;
pangsk	0:0f36b9fac4c5	148
pangsk	0:0f36b9fac4c5	149	// power pins are not connected on mbed, so we can skip them
pangsk	0:0f36b9fac4c5	150	/* P1[18] = USB_UP_LED, 01 */
pangsk	0:0f36b9fac4c5	151	/* P1[19] = /USB_PPWR, 10 */
pangsk	0:0f36b9fac4c5	152	/* P1[22] = USB_PWRD, 10 */
pangsk	0:0f36b9fac4c5	153	/* P1[27] = /USB_OVRCR, 10 */
pangsk	0:0f36b9fac4c5	154	/*LPC_PINCON->PINSEL3 &= ~((3<<4) \| (3<<6) \| (3<<12) \| (3<<22));
pangsk	0:0f36b9fac4c5	155	LPC_PINCON->PINSEL3 \|= ((1<<4)\|(2<<6) \| (2<<12) \| (2<<22)); // 0x00802080
pangsk	0:0f36b9fac4c5	156	*/
pangsk	0:0f36b9fac4c5	157
pangsk	0:0f36b9fac4c5	158	// configure USB D+/D- pins
pangsk	0:0f36b9fac4c5	159	/* P0[29] = USB_D+, 01 */
pangsk	0:0f36b9fac4c5	160	/* P0[30] = USB_D-, 01 */
pangsk	0:0f36b9fac4c5	161	LPC_PINCON->PINSEL1 &= ~((3<<26) \| (3<<28));
pangsk	0:0f36b9fac4c5	162	LPC_PINCON->PINSEL1 \|= ((1<<26)\|(1<<28)); // 0x14000000
pangsk	0:0f36b9fac4c5	163
pangsk	0:0f36b9fac4c5	164	PRINT_Log("Initializing Host Stack\n");
pangsk	0:0f36b9fac4c5	165
pangsk	0:0f36b9fac4c5	166	Hcca = (volatile HCCA *)(HostBuf+0x000);
pangsk	0:0f36b9fac4c5	167	TDHead = (volatile HCTD *)(HostBuf+0x100);
pangsk	0:0f36b9fac4c5	168	TDTail = (volatile HCTD *)(HostBuf+0x110);
pangsk	0:0f36b9fac4c5	169	EDCtrl = (volatile HCED *)(HostBuf+0x120);
pangsk	0:0f36b9fac4c5	170	EDBulkIn = (volatile HCED *)(HostBuf+0x130);
pangsk	0:0f36b9fac4c5	171	EDBulkOut = (volatile HCED *)(HostBuf+0x140);
pangsk	0:0f36b9fac4c5	172	TDBuffer = (volatile USB_INT08U *)(HostBuf+0x150);
pangsk	0:0f36b9fac4c5	173
pangsk	0:0f36b9fac4c5	174	/* Initialize all the TDs, EDs and HCCA to 0 */
pangsk	0:0f36b9fac4c5	175	Host_EDInit(EDCtrl);
pangsk	0:0f36b9fac4c5	176	Host_EDInit(EDBulkIn);
pangsk	0:0f36b9fac4c5	177	Host_EDInit(EDBulkOut);
pangsk	0:0f36b9fac4c5	178	Host_TDInit(TDHead);
pangsk	0:0f36b9fac4c5	179	Host_TDInit(TDTail);
pangsk	0:0f36b9fac4c5	180	Host_HCCAInit(Hcca);
pangsk	0:0f36b9fac4c5	181
pangsk	0:0f36b9fac4c5	182	Host_DelayMS(50); /* Wait 50 ms before apply reset */
pangsk	0:0f36b9fac4c5	183	LPC_USB->HcControl = 0; /* HARDWARE RESET */
pangsk	0:0f36b9fac4c5	184	LPC_USB->HcControlHeadED = 0; /* Initialize Control list head to Zero */
pangsk	0:0f36b9fac4c5	185	LPC_USB->HcBulkHeadED = 0; /* Initialize Bulk list head to Zero */
pangsk	0:0f36b9fac4c5	186
pangsk	0:0f36b9fac4c5	187	/* SOFTWARE RESET */
pangsk	0:0f36b9fac4c5	188	LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR;
pangsk	0:0f36b9fac4c5	189	LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; /* Write Fm Interval and Largest Data Packet Counter */
pangsk	0:0f36b9fac4c5	190
pangsk	0:0f36b9fac4c5	191	/* Put HC in operational state */
pangsk	0:0f36b9fac4c5	192	LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) \| OR_CONTROL_HC_OPER;
pangsk	0:0f36b9fac4c5	193	LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC; /* Set Global Power */
pangsk	0:0f36b9fac4c5	194
pangsk	0:0f36b9fac4c5	195	LPC_USB->HcHCCA = (USB_INT32U)Hcca;
pangsk	0:0f36b9fac4c5	196	LPC_USB->HcInterruptStatus \|= LPC_USB->HcInterruptStatus; /* Clear Interrrupt Status */
pangsk	0:0f36b9fac4c5	197
pangsk	0:0f36b9fac4c5	198
pangsk	0:0f36b9fac4c5	199	LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE \|
pangsk	0:0f36b9fac4c5	200	OR_INTR_ENABLE_WDH \|
pangsk	0:0f36b9fac4c5	201	OR_INTR_ENABLE_RHSC;
pangsk	0:0f36b9fac4c5	202
pangsk	0:0f36b9fac4c5	203	NVIC_SetPriority(USB_IRQn, 0); /* highest priority */
pangsk	0:0f36b9fac4c5	204	/* Enable the USB Interrupt */
pangsk	0:0f36b9fac4c5	205	NVIC_EnableIRQ(USB_IRQn);
pangsk	0:0f36b9fac4c5	206	PRINT_Log("Host Initialized\n");
pangsk	0:0f36b9fac4c5	207	}
pangsk	0:0f36b9fac4c5	208
pangsk	0:0f36b9fac4c5	209	/*
pangsk	0:0f36b9fac4c5	210	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	211	* INTERRUPT SERVICE ROUTINE
pangsk	0:0f36b9fac4c5	212	*
pangsk	0:0f36b9fac4c5	213	* Description: This function services the interrupt caused by host controller
pangsk	0:0f36b9fac4c5	214	*
pangsk	0:0f36b9fac4c5	215	* Arguments : None
pangsk	0:0f36b9fac4c5	216	*
pangsk	0:0f36b9fac4c5	217	* Returns : None
pangsk	0:0f36b9fac4c5	218	*
pangsk	0:0f36b9fac4c5	219	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	220	*/
pangsk	0:0f36b9fac4c5	221
pangsk	0:0f36b9fac4c5	222	void USB_IRQHandler (void) __irq
pangsk	0:0f36b9fac4c5	223	{
pangsk	0:0f36b9fac4c5	224	USB_INT32U int_status;
pangsk	0:0f36b9fac4c5	225	USB_INT32U ie_status;
pangsk	0:0f36b9fac4c5	226
pangsk	0:0f36b9fac4c5	227	int_status = LPC_USB->HcInterruptStatus; /* Read Interrupt Status */
pangsk	0:0f36b9fac4c5	228	ie_status = LPC_USB->HcInterruptEnable; /* Read Interrupt enable status */
pangsk	0:0f36b9fac4c5	229
pangsk	0:0f36b9fac4c5	230	if (!(int_status & ie_status)) {
pangsk	0:0f36b9fac4c5	231	return;
pangsk	0:0f36b9fac4c5	232	} else {
pangsk	0:0f36b9fac4c5	233
pangsk	0:0f36b9fac4c5	234	int_status = int_status & ie_status;
pangsk	0:0f36b9fac4c5	235	if (int_status & OR_INTR_STATUS_RHSC) { /* Root hub status change interrupt */
pangsk	0:0f36b9fac4c5	236	if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) {
pangsk	0:0f36b9fac4c5	237	if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) {
pangsk	0:0f36b9fac4c5	238	/*
pangsk	0:0f36b9fac4c5	239	* When DRWE is on, Connect Status Change
pangsk	0:0f36b9fac4c5	240	* means a remote wakeup event.
pangsk	0:0f36b9fac4c5	241	*/
pangsk	0:0f36b9fac4c5	242	HOST_RhscIntr = 1;// JUST SOMETHING FOR A BREAKPOINT
pangsk	0:0f36b9fac4c5	243	}
pangsk	0:0f36b9fac4c5	244	else {
pangsk	0:0f36b9fac4c5	245	/*
pangsk	0:0f36b9fac4c5	246	* When DRWE is off, Connect Status Change
pangsk	0:0f36b9fac4c5	247	* is NOT a remote wakeup event
pangsk	0:0f36b9fac4c5	248	*/
pangsk	0:0f36b9fac4c5	249	if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) {
pangsk	0:0f36b9fac4c5	250	if (!gUSBConnected) {
pangsk	0:0f36b9fac4c5	251	HOST_TDControlStatus = 0;
pangsk	0:0f36b9fac4c5	252	HOST_WdhIntr = 0;
pangsk	0:0f36b9fac4c5	253	HOST_RhscIntr = 1;
pangsk	0:0f36b9fac4c5	254	gUSBConnected = 1;
pangsk	0:0f36b9fac4c5	255	}
pangsk	0:0f36b9fac4c5	256	else
pangsk	0:0f36b9fac4c5	257	PRINT_Log("Spurious status change (connected)?\n");
pangsk	0:0f36b9fac4c5	258	} else {
pangsk	0:0f36b9fac4c5	259	if (gUSBConnected) {
pangsk	0:0f36b9fac4c5	260	LPC_USB->HcInterruptEnable = 0; // why do we get multiple disc. rupts???
pangsk	0:0f36b9fac4c5	261	HOST_RhscIntr = 0;
pangsk	0:0f36b9fac4c5	262	gUSBConnected = 0;
pangsk	0:0f36b9fac4c5	263	}
pangsk	0:0f36b9fac4c5	264	else
pangsk	0:0f36b9fac4c5	265	PRINT_Log("Spurious status change (disconnected)?\n");
pangsk	0:0f36b9fac4c5	266	}
pangsk	0:0f36b9fac4c5	267	}
pangsk	0:0f36b9fac4c5	268	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC;
pangsk	0:0f36b9fac4c5	269	}
pangsk	0:0f36b9fac4c5	270	if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) {
pangsk	0:0f36b9fac4c5	271	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
pangsk	0:0f36b9fac4c5	272	}
pangsk	0:0f36b9fac4c5	273	}
pangsk	0:0f36b9fac4c5	274	if (int_status & OR_INTR_STATUS_WDH) { /* Writeback Done Head interrupt */
pangsk	0:0f36b9fac4c5	275	HOST_WdhIntr = 1;
pangsk	0:0f36b9fac4c5	276	HOST_TDControlStatus = (TDHead->Control >> 28) & 0xf;
pangsk	0:0f36b9fac4c5	277	}
pangsk	0:0f36b9fac4c5	278	LPC_USB->HcInterruptStatus = int_status; /* Clear interrupt status register */
pangsk	0:0f36b9fac4c5	279	}
pangsk	0:0f36b9fac4c5	280	return;
pangsk	0:0f36b9fac4c5	281	}
pangsk	0:0f36b9fac4c5	282
pangsk	0:0f36b9fac4c5	283	/*
pangsk	0:0f36b9fac4c5	284	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	285	* PROCESS TRANSFER DESCRIPTOR
pangsk	0:0f36b9fac4c5	286	*
pangsk	0:0f36b9fac4c5	287	* Description: This function processes the transfer descriptor
pangsk	0:0f36b9fac4c5	288	*
pangsk	0:0f36b9fac4c5	289	* Arguments : ed Endpoint descriptor that contains this transfer descriptor
pangsk	0:0f36b9fac4c5	290	* token SETUP, IN, OUT
pangsk	0:0f36b9fac4c5	291	* buffer Current Buffer Pointer of the transfer descriptor
pangsk	0:0f36b9fac4c5	292	* buffer_len Length of the buffer
pangsk	0:0f36b9fac4c5	293	*
pangsk	0:0f36b9fac4c5	294	* Returns : OK if TD submission is successful
pangsk	0:0f36b9fac4c5	295	* ERROR if TD submission fails
pangsk	0:0f36b9fac4c5	296	*
pangsk	0:0f36b9fac4c5	297	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	298	*/
pangsk	0:0f36b9fac4c5	299
pangsk	0:0f36b9fac4c5	300	USB_INT32S Host_ProcessTD (volatile HCED *ed,
pangsk	0:0f36b9fac4c5	301	volatile USB_INT32U token,
pangsk	0:0f36b9fac4c5	302	volatile USB_INT08U *buffer,
pangsk	0:0f36b9fac4c5	303	USB_INT32U buffer_len)
pangsk	0:0f36b9fac4c5	304	{
pangsk	0:0f36b9fac4c5	305	volatile USB_INT32U td_toggle;
pangsk	0:0f36b9fac4c5	306
pangsk	0:0f36b9fac4c5	307
pangsk	0:0f36b9fac4c5	308	if (ed == EDCtrl) {
pangsk	0:0f36b9fac4c5	309	if (token == TD_SETUP) {
pangsk	0:0f36b9fac4c5	310	td_toggle = TD_TOGGLE_0;
pangsk	0:0f36b9fac4c5	311	} else {
pangsk	0:0f36b9fac4c5	312	td_toggle = TD_TOGGLE_1;
pangsk	0:0f36b9fac4c5	313	}
pangsk	0:0f36b9fac4c5	314	} else {
pangsk	0:0f36b9fac4c5	315	td_toggle = 0;
pangsk	0:0f36b9fac4c5	316	}
pangsk	0:0f36b9fac4c5	317	TDHead->Control = (TD_ROUNDING \|
pangsk	0:0f36b9fac4c5	318	token \|
pangsk	0:0f36b9fac4c5	319	TD_DELAY_INT(0) \|
pangsk	0:0f36b9fac4c5	320	td_toggle \|
pangsk	0:0f36b9fac4c5	321	TD_CC);
pangsk	0:0f36b9fac4c5	322	TDTail->Control = 0;
pangsk	0:0f36b9fac4c5	323	TDHead->CurrBufPtr = (USB_INT32U) buffer;
pangsk	0:0f36b9fac4c5	324	TDTail->CurrBufPtr = 0;
pangsk	0:0f36b9fac4c5	325	TDHead->Next = (USB_INT32U) TDTail;
pangsk	0:0f36b9fac4c5	326	TDTail->Next = 0;
pangsk	0:0f36b9fac4c5	327	TDHead->BufEnd = (USB_INT32U)(buffer + (buffer_len - 1));
pangsk	0:0f36b9fac4c5	328	TDTail->BufEnd = 0;
pangsk	0:0f36b9fac4c5	329
pangsk	0:0f36b9fac4c5	330	ed->HeadTd = (USB_INT32U)TDHead \| ((ed->HeadTd) & 0x00000002);
pangsk	0:0f36b9fac4c5	331	ed->TailTd = (USB_INT32U)TDTail;
pangsk	0:0f36b9fac4c5	332	ed->Next = 0;
pangsk	0:0f36b9fac4c5	333
pangsk	0:0f36b9fac4c5	334	if (ed == EDCtrl) {
pangsk	0:0f36b9fac4c5	335	LPC_USB->HcControlHeadED = (USB_INT32U)ed;
pangsk	0:0f36b9fac4c5	336	LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus \| OR_CMD_STATUS_CLF;
pangsk	0:0f36b9fac4c5	337	LPC_USB->HcControl = LPC_USB->HcControl \| OR_CONTROL_CLE;
pangsk	0:0f36b9fac4c5	338	} else {
pangsk	0:0f36b9fac4c5	339	LPC_USB->HcBulkHeadED = (USB_INT32U)ed;
pangsk	0:0f36b9fac4c5	340	LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus \| OR_CMD_STATUS_BLF;
pangsk	0:0f36b9fac4c5	341	LPC_USB->HcControl = LPC_USB->HcControl \| OR_CONTROL_BLE;
pangsk	0:0f36b9fac4c5	342	}
pangsk	0:0f36b9fac4c5	343
pangsk	0:0f36b9fac4c5	344	Host_WDHWait();
pangsk	0:0f36b9fac4c5	345
pangsk	0:0f36b9fac4c5	346	// if (!(TDHead->Control & 0xF0000000)) {
pangsk	0:0f36b9fac4c5	347	if (!HOST_TDControlStatus) {
pangsk	0:0f36b9fac4c5	348	return (OK);
pangsk	0:0f36b9fac4c5	349	} else {
pangsk	0:0f36b9fac4c5	350	return (ERR_TD_FAIL);
pangsk	0:0f36b9fac4c5	351	}
pangsk	0:0f36b9fac4c5	352	}
pangsk	0:0f36b9fac4c5	353
pangsk	0:0f36b9fac4c5	354	/*
pangsk	0:0f36b9fac4c5	355	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	356	* ENUMERATE THE DEVICE
pangsk	0:0f36b9fac4c5	357	*
pangsk	0:0f36b9fac4c5	358	* Description: This function is used to enumerate the device connected
pangsk	0:0f36b9fac4c5	359	*
pangsk	0:0f36b9fac4c5	360	* Arguments : None
pangsk	0:0f36b9fac4c5	361	*
pangsk	0:0f36b9fac4c5	362	* Returns : None
pangsk	0:0f36b9fac4c5	363	*
pangsk	0:0f36b9fac4c5	364	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	365	*/
pangsk	0:0f36b9fac4c5	366
pangsk	0:0f36b9fac4c5	367	USB_INT32S Host_EnumDev (void)
pangsk	0:0f36b9fac4c5	368	{
pangsk	0:0f36b9fac4c5	369	USB_INT32S rc;
pangsk	0:0f36b9fac4c5	370
pangsk	0:0f36b9fac4c5	371	PRINT_Log("Connect a Mass Storage device\n");
pangsk	0:0f36b9fac4c5	372	while (!HOST_RhscIntr)
pangsk	0:0f36b9fac4c5	373	__WFI();
pangsk	0:0f36b9fac4c5	374	Host_DelayMS(100); /* USB 2.0 spec says atleast 50ms delay beore port reset */
pangsk	0:0f36b9fac4c5	375	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS; // Initiate port reset
pangsk	0:0f36b9fac4c5	376	while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS)
pangsk	0:0f36b9fac4c5	377	__WFI(); // Wait for port reset to complete...
pangsk	0:0f36b9fac4c5	378	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; // ...and clear port reset signal
pangsk	0:0f36b9fac4c5	379	Host_DelayMS(200); /* Wait for 100 MS after port reset */
pangsk	0:0f36b9fac4c5	380
pangsk	0:0f36b9fac4c5	381	EDCtrl->Control = 8 << 16; /* Put max pkt size = 8 */
pangsk	0:0f36b9fac4c5	382	/* Read first 8 bytes of device desc */
pangsk	0:0f36b9fac4c5	383	rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_DEVICE, 0, TDBuffer, 8);
pangsk	0:0f36b9fac4c5	384	if (rc != OK) {
pangsk	0:0f36b9fac4c5	385	PRINT_Err(rc);
pangsk	0:0f36b9fac4c5	386	return (rc);
pangsk	0:0f36b9fac4c5	387	}
pangsk	0:0f36b9fac4c5	388	EDCtrl->Control = TDBuffer[7] << 16; /* Get max pkt size of endpoint 0 */
pangsk	0:0f36b9fac4c5	389	rc = HOST_SET_ADDRESS(1); /* Set the device address to 1 */
pangsk	0:0f36b9fac4c5	390	if (rc != OK) {
pangsk	0:0f36b9fac4c5	391	PRINT_Err(rc);
pangsk	0:0f36b9fac4c5	392	return (rc);
pangsk	0:0f36b9fac4c5	393	}
pangsk	0:0f36b9fac4c5	394	Host_DelayMS(2);
pangsk	0:0f36b9fac4c5	395	EDCtrl->Control = (EDCtrl->Control) \| 1; /* Modify control pipe with address 1 */
pangsk	0:0f36b9fac4c5	396	/* Get the configuration descriptor */
pangsk	0:0f36b9fac4c5	397	rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, 9);
pangsk	0:0f36b9fac4c5	398	if (rc != OK) {
pangsk	0:0f36b9fac4c5	399	PRINT_Err(rc);
pangsk	0:0f36b9fac4c5	400	return (rc);
pangsk	0:0f36b9fac4c5	401	}
pangsk	0:0f36b9fac4c5	402	/* Get the first configuration data */
pangsk	0:0f36b9fac4c5	403	rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, ReadLE16U(&TDBuffer[2]));
pangsk	0:0f36b9fac4c5	404	if (rc != OK) {
pangsk	0:0f36b9fac4c5	405	PRINT_Err(rc);
pangsk	0:0f36b9fac4c5	406	return (rc);
pangsk	0:0f36b9fac4c5	407	}
pangsk	0:0f36b9fac4c5	408	rc = MS_ParseConfiguration(); /* Parse the configuration */
pangsk	0:0f36b9fac4c5	409	if (rc != OK) {
pangsk	0:0f36b9fac4c5	410	PRINT_Err(rc);
pangsk	0:0f36b9fac4c5	411	return (rc);
pangsk	0:0f36b9fac4c5	412	}
pangsk	0:0f36b9fac4c5	413	rc = USBH_SET_CONFIGURATION(1); /* Select device configuration 1 */
pangsk	0:0f36b9fac4c5	414	if (rc != OK) {
pangsk	0:0f36b9fac4c5	415	PRINT_Err(rc);
pangsk	0:0f36b9fac4c5	416	}
pangsk	0:0f36b9fac4c5	417	Host_DelayMS(100); /* Some devices may require this delay */
pangsk	0:0f36b9fac4c5	418	return (rc);
pangsk	0:0f36b9fac4c5	419	}
pangsk	0:0f36b9fac4c5	420
pangsk	0:0f36b9fac4c5	421	/*
pangsk	0:0f36b9fac4c5	422	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	423	* RECEIVE THE CONTROL INFORMATION
pangsk	0:0f36b9fac4c5	424	*
pangsk	0:0f36b9fac4c5	425	* Description: This function is used to receive the control information
pangsk	0:0f36b9fac4c5	426	*
pangsk	0:0f36b9fac4c5	427	* Arguments : bm_request_type
pangsk	0:0f36b9fac4c5	428	* b_request
pangsk	0:0f36b9fac4c5	429	* w_value
pangsk	0:0f36b9fac4c5	430	* w_index
pangsk	0:0f36b9fac4c5	431	* w_length
pangsk	0:0f36b9fac4c5	432	* buffer
pangsk	0:0f36b9fac4c5	433	*
pangsk	0:0f36b9fac4c5	434	* Returns : OK if Success
pangsk	0:0f36b9fac4c5	435	* ERROR if Failed
pangsk	0:0f36b9fac4c5	436	*
pangsk	0:0f36b9fac4c5	437	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	438	*/
pangsk	0:0f36b9fac4c5	439
pangsk	0:0f36b9fac4c5	440	USB_INT32S Host_CtrlRecv ( USB_INT08U bm_request_type,
pangsk	0:0f36b9fac4c5	441	USB_INT08U b_request,
pangsk	0:0f36b9fac4c5	442	USB_INT16U w_value,
pangsk	0:0f36b9fac4c5	443	USB_INT16U w_index,
pangsk	0:0f36b9fac4c5	444	USB_INT16U w_length,
pangsk	0:0f36b9fac4c5	445	volatile USB_INT08U *buffer)
pangsk	0:0f36b9fac4c5	446	{
pangsk	0:0f36b9fac4c5	447	USB_INT32S rc;
pangsk	0:0f36b9fac4c5	448
pangsk	0:0f36b9fac4c5	449
pangsk	0:0f36b9fac4c5	450	Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
pangsk	0:0f36b9fac4c5	451	rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
pangsk	0:0f36b9fac4c5	452	if (rc == OK) {
pangsk	0:0f36b9fac4c5	453	if (w_length) {
pangsk	0:0f36b9fac4c5	454	rc = Host_ProcessTD(EDCtrl, TD_IN, TDBuffer, w_length);
pangsk	0:0f36b9fac4c5	455	}
pangsk	0:0f36b9fac4c5	456	if (rc == OK) {
pangsk	0:0f36b9fac4c5	457	rc = Host_ProcessTD(EDCtrl, TD_OUT, NULL, 0);
pangsk	0:0f36b9fac4c5	458	}
pangsk	0:0f36b9fac4c5	459	}
pangsk	0:0f36b9fac4c5	460	return (rc);
pangsk	0:0f36b9fac4c5	461	}
pangsk	0:0f36b9fac4c5	462
pangsk	0:0f36b9fac4c5	463	/*
pangsk	0:0f36b9fac4c5	464	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	465	* SEND THE CONTROL INFORMATION
pangsk	0:0f36b9fac4c5	466	*
pangsk	0:0f36b9fac4c5	467	* Description: This function is used to send the control information
pangsk	0:0f36b9fac4c5	468	*
pangsk	0:0f36b9fac4c5	469	* Arguments : None
pangsk	0:0f36b9fac4c5	470	*
pangsk	0:0f36b9fac4c5	471	* Returns : OK if Success
pangsk	0:0f36b9fac4c5	472	* ERR_INVALID_BOOTSIG if Failed
pangsk	0:0f36b9fac4c5	473	*
pangsk	0:0f36b9fac4c5	474	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	475	*/
pangsk	0:0f36b9fac4c5	476
pangsk	0:0f36b9fac4c5	477	USB_INT32S Host_CtrlSend ( USB_INT08U bm_request_type,
pangsk	0:0f36b9fac4c5	478	USB_INT08U b_request,
pangsk	0:0f36b9fac4c5	479	USB_INT16U w_value,
pangsk	0:0f36b9fac4c5	480	USB_INT16U w_index,
pangsk	0:0f36b9fac4c5	481	USB_INT16U w_length,
pangsk	0:0f36b9fac4c5	482	volatile USB_INT08U *buffer)
pangsk	0:0f36b9fac4c5	483	{
pangsk	0:0f36b9fac4c5	484	USB_INT32S rc;
pangsk	0:0f36b9fac4c5	485
pangsk	0:0f36b9fac4c5	486
pangsk	0:0f36b9fac4c5	487	Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
pangsk	0:0f36b9fac4c5	488
pangsk	0:0f36b9fac4c5	489	rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
pangsk	0:0f36b9fac4c5	490	if (rc == OK) {
pangsk	0:0f36b9fac4c5	491	if (w_length) {
pangsk	0:0f36b9fac4c5	492	rc = Host_ProcessTD(EDCtrl, TD_OUT, TDBuffer, w_length);
pangsk	0:0f36b9fac4c5	493	}
pangsk	0:0f36b9fac4c5	494	if (rc == OK) {
pangsk	0:0f36b9fac4c5	495	rc = Host_ProcessTD(EDCtrl, TD_IN, NULL, 0);
pangsk	0:0f36b9fac4c5	496	}
pangsk	0:0f36b9fac4c5	497	}
pangsk	0:0f36b9fac4c5	498	return (rc);
pangsk	0:0f36b9fac4c5	499	}
pangsk	0:0f36b9fac4c5	500
pangsk	0:0f36b9fac4c5	501	/*
pangsk	0:0f36b9fac4c5	502	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	503	* FILL SETUP PACKET
pangsk	0:0f36b9fac4c5	504	*
pangsk	0:0f36b9fac4c5	505	* Description: This function is used to fill the setup packet
pangsk	0:0f36b9fac4c5	506	*
pangsk	0:0f36b9fac4c5	507	* Arguments : None
pangsk	0:0f36b9fac4c5	508	*
pangsk	0:0f36b9fac4c5	509	* Returns : OK if Success
pangsk	0:0f36b9fac4c5	510	* ERR_INVALID_BOOTSIG if Failed
pangsk	0:0f36b9fac4c5	511	*
pangsk	0:0f36b9fac4c5	512	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	513	*/
pangsk	0:0f36b9fac4c5	514
pangsk	0:0f36b9fac4c5	515	void Host_FillSetup (USB_INT08U bm_request_type,
pangsk	0:0f36b9fac4c5	516	USB_INT08U b_request,
pangsk	0:0f36b9fac4c5	517	USB_INT16U w_value,
pangsk	0:0f36b9fac4c5	518	USB_INT16U w_index,
pangsk	0:0f36b9fac4c5	519	USB_INT16U w_length)
pangsk	0:0f36b9fac4c5	520	{
pangsk	0:0f36b9fac4c5	521	int i;
pangsk	0:0f36b9fac4c5	522	for (i=0;i<w_length;i++)
pangsk	0:0f36b9fac4c5	523	TDBuffer[i] = 0;
pangsk	0:0f36b9fac4c5	524
pangsk	0:0f36b9fac4c5	525	TDBuffer[0] = bm_request_type;
pangsk	0:0f36b9fac4c5	526	TDBuffer[1] = b_request;
pangsk	0:0f36b9fac4c5	527	WriteLE16U(&TDBuffer[2], w_value);
pangsk	0:0f36b9fac4c5	528	WriteLE16U(&TDBuffer[4], w_index);
pangsk	0:0f36b9fac4c5	529	WriteLE16U(&TDBuffer[6], w_length);
pangsk	0:0f36b9fac4c5	530	}
pangsk	0:0f36b9fac4c5	531
pangsk	0:0f36b9fac4c5	532
pangsk	0:0f36b9fac4c5	533
pangsk	0:0f36b9fac4c5	534	/*
pangsk	0:0f36b9fac4c5	535	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	536	* INITIALIZE THE TRANSFER DESCRIPTOR
pangsk	0:0f36b9fac4c5	537	*
pangsk	0:0f36b9fac4c5	538	* Description: This function initializes transfer descriptor
pangsk	0:0f36b9fac4c5	539	*
pangsk	0:0f36b9fac4c5	540	* Arguments : Pointer to TD structure
pangsk	0:0f36b9fac4c5	541	*
pangsk	0:0f36b9fac4c5	542	* Returns : None
pangsk	0:0f36b9fac4c5	543	*
pangsk	0:0f36b9fac4c5	544	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	545	*/
pangsk	0:0f36b9fac4c5	546
pangsk	0:0f36b9fac4c5	547	void Host_TDInit (volatile HCTD *td)
pangsk	0:0f36b9fac4c5	548	{
pangsk	0:0f36b9fac4c5	549
pangsk	0:0f36b9fac4c5	550	td->Control = 0;
pangsk	0:0f36b9fac4c5	551	td->CurrBufPtr = 0;
pangsk	0:0f36b9fac4c5	552	td->Next = 0;
pangsk	0:0f36b9fac4c5	553	td->BufEnd = 0;
pangsk	0:0f36b9fac4c5	554	}
pangsk	0:0f36b9fac4c5	555
pangsk	0:0f36b9fac4c5	556	/*
pangsk	0:0f36b9fac4c5	557	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	558	* INITIALIZE THE ENDPOINT DESCRIPTOR
pangsk	0:0f36b9fac4c5	559	*
pangsk	0:0f36b9fac4c5	560	* Description: This function initializes endpoint descriptor
pangsk	0:0f36b9fac4c5	561	*
pangsk	0:0f36b9fac4c5	562	* Arguments : Pointer to ED strcuture
pangsk	0:0f36b9fac4c5	563	*
pangsk	0:0f36b9fac4c5	564	* Returns : None
pangsk	0:0f36b9fac4c5	565	*
pangsk	0:0f36b9fac4c5	566	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	567	*/
pangsk	0:0f36b9fac4c5	568
pangsk	0:0f36b9fac4c5	569	void Host_EDInit (volatile HCED *ed)
pangsk	0:0f36b9fac4c5	570	{
pangsk	0:0f36b9fac4c5	571
pangsk	0:0f36b9fac4c5	572	ed->Control = 0;
pangsk	0:0f36b9fac4c5	573	ed->TailTd = 0;
pangsk	0:0f36b9fac4c5	574	ed->HeadTd = 0;
pangsk	0:0f36b9fac4c5	575	ed->Next = 0;
pangsk	0:0f36b9fac4c5	576	}
pangsk	0:0f36b9fac4c5	577
pangsk	0:0f36b9fac4c5	578	/*
pangsk	0:0f36b9fac4c5	579	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	580	* INITIALIZE HOST CONTROLLER COMMUNICATIONS AREA
pangsk	0:0f36b9fac4c5	581	*
pangsk	0:0f36b9fac4c5	582	* Description: This function initializes host controller communications area
pangsk	0:0f36b9fac4c5	583	*
pangsk	0:0f36b9fac4c5	584	* Arguments : Pointer to HCCA
pangsk	0:0f36b9fac4c5	585	*
pangsk	0:0f36b9fac4c5	586	* Returns :
pangsk	0:0f36b9fac4c5	587	*
pangsk	0:0f36b9fac4c5	588	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	589	*/
pangsk	0:0f36b9fac4c5	590
pangsk	0:0f36b9fac4c5	591	void Host_HCCAInit (volatile HCCA *hcca)
pangsk	0:0f36b9fac4c5	592	{
pangsk	0:0f36b9fac4c5	593	USB_INT32U i;
pangsk	0:0f36b9fac4c5	594
pangsk	0:0f36b9fac4c5	595
pangsk	0:0f36b9fac4c5	596	for (i = 0; i < 32; i++) {
pangsk	0:0f36b9fac4c5	597
pangsk	0:0f36b9fac4c5	598	hcca->IntTable[i] = 0;
pangsk	0:0f36b9fac4c5	599	hcca->FrameNumber = 0;
pangsk	0:0f36b9fac4c5	600	hcca->DoneHead = 0;
pangsk	0:0f36b9fac4c5	601	}
pangsk	0:0f36b9fac4c5	602
pangsk	0:0f36b9fac4c5	603	}
pangsk	0:0f36b9fac4c5	604
pangsk	0:0f36b9fac4c5	605	/*
pangsk	0:0f36b9fac4c5	606	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	607	* WAIT FOR WDH INTERRUPT
pangsk	0:0f36b9fac4c5	608	*
pangsk	0:0f36b9fac4c5	609	* Description: This function is infinite loop which breaks when ever a WDH interrupt rises
pangsk	0:0f36b9fac4c5	610	*
pangsk	0:0f36b9fac4c5	611	* Arguments : None
pangsk	0:0f36b9fac4c5	612	*
pangsk	0:0f36b9fac4c5	613	* Returns : None
pangsk	0:0f36b9fac4c5	614	*
pangsk	0:0f36b9fac4c5	615	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	616	*/
pangsk	0:0f36b9fac4c5	617
pangsk	0:0f36b9fac4c5	618	void Host_WDHWait (void)
pangsk	0:0f36b9fac4c5	619	{
pangsk	0:0f36b9fac4c5	620	while (!HOST_WdhIntr)
pangsk	0:0f36b9fac4c5	621	__WFI();
pangsk	0:0f36b9fac4c5	622
pangsk	0:0f36b9fac4c5	623	HOST_WdhIntr = 0;
pangsk	0:0f36b9fac4c5	624	}
pangsk	0:0f36b9fac4c5	625
pangsk	0:0f36b9fac4c5	626	/*
pangsk	0:0f36b9fac4c5	627	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	628	* READ LE 32U
pangsk	0:0f36b9fac4c5	629	*
pangsk	0:0f36b9fac4c5	630	* Description: This function is used to read an unsigned integer from a character buffer in the platform
pangsk	0:0f36b9fac4c5	631	* containing little endian processor
pangsk	0:0f36b9fac4c5	632	*
pangsk	0:0f36b9fac4c5	633	* Arguments : pmem Pointer to the character buffer
pangsk	0:0f36b9fac4c5	634	*
pangsk	0:0f36b9fac4c5	635	* Returns : val Unsigned integer
pangsk	0:0f36b9fac4c5	636	*
pangsk	0:0f36b9fac4c5	637	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	638	*/
pangsk	0:0f36b9fac4c5	639
pangsk	0:0f36b9fac4c5	640	USB_INT32U ReadLE32U (volatile USB_INT08U *pmem)
pangsk	0:0f36b9fac4c5	641	{
pangsk	0:0f36b9fac4c5	642	USB_INT32U val = (USB_INT32U)pmem;
pangsk	0:0f36b9fac4c5	643	#ifdef __BIG_ENDIAN
pangsk	0:0f36b9fac4c5	644	return __REV(val);
pangsk	0:0f36b9fac4c5	645	#else
pangsk	0:0f36b9fac4c5	646	return val;
pangsk	0:0f36b9fac4c5	647	#endif
pangsk	0:0f36b9fac4c5	648	}
pangsk	0:0f36b9fac4c5	649
pangsk	0:0f36b9fac4c5	650	/*
pangsk	0:0f36b9fac4c5	651	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	652	* WRITE LE 32U
pangsk	0:0f36b9fac4c5	653	*
pangsk	0:0f36b9fac4c5	654	* Description: This function is used to write an unsigned integer into a charecter buffer in the platform
pangsk	0:0f36b9fac4c5	655	* containing little endian processor.
pangsk	0:0f36b9fac4c5	656	*
pangsk	0:0f36b9fac4c5	657	* Arguments : pmem Pointer to the charecter buffer
pangsk	0:0f36b9fac4c5	658	* val Integer value to be placed in the charecter buffer
pangsk	0:0f36b9fac4c5	659	*
pangsk	0:0f36b9fac4c5	660	* Returns : None
pangsk	0:0f36b9fac4c5	661	*
pangsk	0:0f36b9fac4c5	662	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	663	*/
pangsk	0:0f36b9fac4c5	664
pangsk	0:0f36b9fac4c5	665	void WriteLE32U (volatile USB_INT08U *pmem,
pangsk	0:0f36b9fac4c5	666	USB_INT32U val)
pangsk	0:0f36b9fac4c5	667	{
pangsk	0:0f36b9fac4c5	668	#ifdef __BIG_ENDIAN
pangsk	0:0f36b9fac4c5	669	(USB_INT32U)pmem = __REV(val);
pangsk	0:0f36b9fac4c5	670	#else
pangsk	0:0f36b9fac4c5	671	(USB_INT32U)pmem = val;
pangsk	0:0f36b9fac4c5	672	#endif
pangsk	0:0f36b9fac4c5	673	}
pangsk	0:0f36b9fac4c5	674
pangsk	0:0f36b9fac4c5	675	/*
pangsk	0:0f36b9fac4c5	676	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	677	* READ LE 16U
pangsk	0:0f36b9fac4c5	678	*
pangsk	0:0f36b9fac4c5	679	* Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
pangsk	0:0f36b9fac4c5	680	* containing little endian processor
pangsk	0:0f36b9fac4c5	681	*
pangsk	0:0f36b9fac4c5	682	* Arguments : pmem Pointer to the charecter buffer
pangsk	0:0f36b9fac4c5	683	*
pangsk	0:0f36b9fac4c5	684	* Returns : val Unsigned short integer
pangsk	0:0f36b9fac4c5	685	*
pangsk	0:0f36b9fac4c5	686	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	687	*/
pangsk	0:0f36b9fac4c5	688
pangsk	0:0f36b9fac4c5	689	USB_INT16U ReadLE16U (volatile USB_INT08U *pmem)
pangsk	0:0f36b9fac4c5	690	{
pangsk	0:0f36b9fac4c5	691	USB_INT16U val = (USB_INT16U)pmem;
pangsk	0:0f36b9fac4c5	692	#ifdef __BIG_ENDIAN
pangsk	0:0f36b9fac4c5	693	return __REV16(val);
pangsk	0:0f36b9fac4c5	694	#else
pangsk	0:0f36b9fac4c5	695	return val;
pangsk	0:0f36b9fac4c5	696	#endif
pangsk	0:0f36b9fac4c5	697	}
pangsk	0:0f36b9fac4c5	698
pangsk	0:0f36b9fac4c5	699	/*
pangsk	0:0f36b9fac4c5	700	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	701	* WRITE LE 16U
pangsk	0:0f36b9fac4c5	702	*
pangsk	0:0f36b9fac4c5	703	* Description: This function is used to write an unsigned short integer into a charecter buffer in the
pangsk	0:0f36b9fac4c5	704	* platform containing little endian processor
pangsk	0:0f36b9fac4c5	705	*
pangsk	0:0f36b9fac4c5	706	* Arguments : pmem Pointer to the charecter buffer
pangsk	0:0f36b9fac4c5	707	* val Value to be placed in the charecter buffer
pangsk	0:0f36b9fac4c5	708	*
pangsk	0:0f36b9fac4c5	709	* Returns : None
pangsk	0:0f36b9fac4c5	710	*
pangsk	0:0f36b9fac4c5	711	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	712	*/
pangsk	0:0f36b9fac4c5	713
pangsk	0:0f36b9fac4c5	714	void WriteLE16U (volatile USB_INT08U *pmem,
pangsk	0:0f36b9fac4c5	715	USB_INT16U val)
pangsk	0:0f36b9fac4c5	716	{
pangsk	0:0f36b9fac4c5	717	#ifdef __BIG_ENDIAN
pangsk	0:0f36b9fac4c5	718	(USB_INT16U)pmem = (__REV16(val) & 0xFFFF);
pangsk	0:0f36b9fac4c5	719	#else
pangsk	0:0f36b9fac4c5	720	(USB_INT16U)pmem = val;
pangsk	0:0f36b9fac4c5	721	#endif
pangsk	0:0f36b9fac4c5	722	}
pangsk	0:0f36b9fac4c5	723
pangsk	0:0f36b9fac4c5	724	/*
pangsk	0:0f36b9fac4c5	725	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	726	* READ BE 32U
pangsk	0:0f36b9fac4c5	727	*
pangsk	0:0f36b9fac4c5	728	* Description: This function is used to read an unsigned integer from a charecter buffer in the platform
pangsk	0:0f36b9fac4c5	729	* containing big endian processor
pangsk	0:0f36b9fac4c5	730	*
pangsk	0:0f36b9fac4c5	731	* Arguments : pmem Pointer to the charecter buffer
pangsk	0:0f36b9fac4c5	732	*
pangsk	0:0f36b9fac4c5	733	* Returns : val Unsigned integer
pangsk	0:0f36b9fac4c5	734	*
pangsk	0:0f36b9fac4c5	735	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	736	*/
pangsk	0:0f36b9fac4c5	737
pangsk	0:0f36b9fac4c5	738	USB_INT32U ReadBE32U (volatile USB_INT08U *pmem)
pangsk	0:0f36b9fac4c5	739	{
pangsk	0:0f36b9fac4c5	740	USB_INT32U val = (USB_INT32U)pmem;
pangsk	0:0f36b9fac4c5	741	#ifdef __BIG_ENDIAN
pangsk	0:0f36b9fac4c5	742	return val;
pangsk	0:0f36b9fac4c5	743	#else
pangsk	0:0f36b9fac4c5	744	return __REV(val);
pangsk	0:0f36b9fac4c5	745	#endif
pangsk	0:0f36b9fac4c5	746	}
pangsk	0:0f36b9fac4c5	747
pangsk	0:0f36b9fac4c5	748	/*
pangsk	0:0f36b9fac4c5	749	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	750	* WRITE BE 32U
pangsk	0:0f36b9fac4c5	751	*
pangsk	0:0f36b9fac4c5	752	* Description: This function is used to write an unsigned integer into a charecter buffer in the platform
pangsk	0:0f36b9fac4c5	753	* containing big endian processor
pangsk	0:0f36b9fac4c5	754	*
pangsk	0:0f36b9fac4c5	755	* Arguments : pmem Pointer to the charecter buffer
pangsk	0:0f36b9fac4c5	756	* val Value to be placed in the charecter buffer
pangsk	0:0f36b9fac4c5	757	*
pangsk	0:0f36b9fac4c5	758	* Returns : None
pangsk	0:0f36b9fac4c5	759	*
pangsk	0:0f36b9fac4c5	760	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	761	*/
pangsk	0:0f36b9fac4c5	762
pangsk	0:0f36b9fac4c5	763	void WriteBE32U (volatile USB_INT08U *pmem,
pangsk	0:0f36b9fac4c5	764	USB_INT32U val)
pangsk	0:0f36b9fac4c5	765	{
pangsk	0:0f36b9fac4c5	766	#ifdef __BIG_ENDIAN
pangsk	0:0f36b9fac4c5	767	(USB_INT32U)pmem = val;
pangsk	0:0f36b9fac4c5	768	#else
pangsk	0:0f36b9fac4c5	769	(USB_INT32U)pmem = __REV(val);
pangsk	0:0f36b9fac4c5	770	#endif
pangsk	0:0f36b9fac4c5	771	}
pangsk	0:0f36b9fac4c5	772
pangsk	0:0f36b9fac4c5	773	/*
pangsk	0:0f36b9fac4c5	774	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	775	* READ BE 16U
pangsk	0:0f36b9fac4c5	776	*
pangsk	0:0f36b9fac4c5	777	* Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
pangsk	0:0f36b9fac4c5	778	* containing big endian processor
pangsk	0:0f36b9fac4c5	779	*
pangsk	0:0f36b9fac4c5	780	* Arguments : pmem Pointer to the charecter buffer
pangsk	0:0f36b9fac4c5	781	*
pangsk	0:0f36b9fac4c5	782	* Returns : val Unsigned short integer
pangsk	0:0f36b9fac4c5	783	*
pangsk	0:0f36b9fac4c5	784	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	785	*/
pangsk	0:0f36b9fac4c5	786
pangsk	0:0f36b9fac4c5	787	USB_INT16U ReadBE16U (volatile USB_INT08U *pmem)
pangsk	0:0f36b9fac4c5	788	{
pangsk	0:0f36b9fac4c5	789	USB_INT16U val = (USB_INT16U)pmem;
pangsk	0:0f36b9fac4c5	790	#ifdef __BIG_ENDIAN
pangsk	0:0f36b9fac4c5	791	return val;
pangsk	0:0f36b9fac4c5	792	#else
pangsk	0:0f36b9fac4c5	793	return __REV16(val);
pangsk	0:0f36b9fac4c5	794	#endif
pangsk	0:0f36b9fac4c5	795	}
pangsk	0:0f36b9fac4c5	796
pangsk	0:0f36b9fac4c5	797	/*
pangsk	0:0f36b9fac4c5	798	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	799	* WRITE BE 16U
pangsk	0:0f36b9fac4c5	800	*
pangsk	0:0f36b9fac4c5	801	* Description: This function is used to write an unsigned short integer into the charecter buffer in the
pangsk	0:0f36b9fac4c5	802	* platform containing big endian processor
pangsk	0:0f36b9fac4c5	803	*
pangsk	0:0f36b9fac4c5	804	* Arguments : pmem Pointer to the charecter buffer
pangsk	0:0f36b9fac4c5	805	* val Value to be placed in the charecter buffer
pangsk	0:0f36b9fac4c5	806	*
pangsk	0:0f36b9fac4c5	807	* Returns : None
pangsk	0:0f36b9fac4c5	808	*
pangsk	0:0f36b9fac4c5	809	**************************************************************************************************************
pangsk	0:0f36b9fac4c5	810	*/
pangsk	0:0f36b9fac4c5	811
pangsk	0:0f36b9fac4c5	812	void WriteBE16U (volatile USB_INT08U *pmem,
pangsk	0:0f36b9fac4c5	813	USB_INT16U val)
pangsk	0:0f36b9fac4c5	814	{
pangsk	0:0f36b9fac4c5	815	#ifdef __BIG_ENDIAN
pangsk	0:0f36b9fac4c5	816	(USB_INT16U)pmem = val;
pangsk	0:0f36b9fac4c5	817	#else
pangsk	0:0f36b9fac4c5	818	(USB_INT16U)pmem = (__REV16(val) & 0xFFFF);
pangsk	0:0f36b9fac4c5	819	#endif
pangsk	0:0f36b9fac4c5	820	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	11 Jul 2011
Imports:	14
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	4
Followers:	2

USBHostLite/usbhost_lpc17xx.c@0:0f36b9fac4c5, 2011-07-11 (annotated)

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