USBHostLite - USB Host Lite downloaded from NXP web site. Unte…

Users » mshoemaker » Code » USBHostLite

Matthew Shoemaker / Mbed 2 deprecated USBHostLite

USB Host Lite downloaded from NXP web site. Untested! Compiled, dropped on MBED, booted up, and get the console message that it is initializing the stack. I however do not have the ability to connect a USB Memory device to test it.

Dependencies: mbed

Host/usbhost_lpc17xx.c@0:0826fcc5d020, 2010-01-13 (annotated)

Committer:: mshoemaker
Date:: Wed Jan 13 01:29:30 2010 +0000
Revision:: 0:0826fcc5d020

Who changed what in which revision?

User	Revision	Line number	New contents of line
mshoemaker	0:0826fcc5d020	1	/*
mshoemaker	0:0826fcc5d020	2	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	3	* NXP USB Host Stack
mshoemaker	0:0826fcc5d020	4	*
mshoemaker	0:0826fcc5d020	5	* (c) Copyright 2008, NXP SemiConductors
mshoemaker	0:0826fcc5d020	6	* (c) Copyright 2008, OnChip Technologies LLC
mshoemaker	0:0826fcc5d020	7	* All Rights Reserved
mshoemaker	0:0826fcc5d020	8	*
mshoemaker	0:0826fcc5d020	9	* www.nxp.com
mshoemaker	0:0826fcc5d020	10	* www.onchiptech.com
mshoemaker	0:0826fcc5d020	11	*
mshoemaker	0:0826fcc5d020	12	* File : usbhost_lpc17xx.c
mshoemaker	0:0826fcc5d020	13	* Programmer(s) : Ravikanth.P
mshoemaker	0:0826fcc5d020	14	* Version :
mshoemaker	0:0826fcc5d020	15	*
mshoemaker	0:0826fcc5d020	16	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	17	*/
mshoemaker	0:0826fcc5d020	18
mshoemaker	0:0826fcc5d020	19	/*
mshoemaker	0:0826fcc5d020	20	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	21	* INCLUDE HEADER FILES
mshoemaker	0:0826fcc5d020	22	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	23	*/
mshoemaker	0:0826fcc5d020	24
mshoemaker	0:0826fcc5d020	25	#include "usbhost_lpc17xx.h"
mshoemaker	0:0826fcc5d020	26
mshoemaker	0:0826fcc5d020	27	/*
mshoemaker	0:0826fcc5d020	28	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	29	* GLOBAL VARIABLES
mshoemaker	0:0826fcc5d020	30	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	31	*/
mshoemaker	0:0826fcc5d020	32	int gUSBConnected;
mshoemaker	0:0826fcc5d020	33
mshoemaker	0:0826fcc5d020	34	volatile USB_INT32U HOST_RhscIntr = 0; /* Root Hub Status Change interrupt */
mshoemaker	0:0826fcc5d020	35	volatile USB_INT32U HOST_WdhIntr = 0; /* Semaphore to wait until the TD is submitted */
mshoemaker	0:0826fcc5d020	36	volatile USB_INT08U HOST_TDControlStatus = 0;
mshoemaker	0:0826fcc5d020	37	volatile HCED EDCtrl; / Control endpoint descriptor structure */
mshoemaker	0:0826fcc5d020	38	volatile HCED EDBulkIn; / BulkIn endpoint descriptor structure */
mshoemaker	0:0826fcc5d020	39	volatile HCED EDBulkOut; / BulkOut endpoint descriptor structure */
mshoemaker	0:0826fcc5d020	40	volatile HCTD TDHead; / Head transfer descriptor structure */
mshoemaker	0:0826fcc5d020	41	volatile HCTD TDTail; / Tail transfer descriptor structure */
mshoemaker	0:0826fcc5d020	42	volatile HCCA Hcca; / Host Controller Communications Area structure */
mshoemaker	0:0826fcc5d020	43	USB_INT16U TDBufNonVol; / Identical to TDBuffer just to reduce compiler warnings */
mshoemaker	0:0826fcc5d020	44	volatile USB_INT08U TDBuffer; / Current Buffer Pointer of transfer descriptor */
mshoemaker	0:0826fcc5d020	45	volatile USB_INT08U FATBuffer; / Buffer used by FAT file system */
mshoemaker	0:0826fcc5d020	46	volatile USB_INT08U UserBuffer; / Buffer used by application */
mshoemaker	0:0826fcc5d020	47
mshoemaker	0:0826fcc5d020	48	/*
mshoemaker	0:0826fcc5d020	49	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	50	* DELAY IN MILLI SECONDS
mshoemaker	0:0826fcc5d020	51	*
mshoemaker	0:0826fcc5d020	52	* Description: This function provides a delay in milli seconds
mshoemaker	0:0826fcc5d020	53	*
mshoemaker	0:0826fcc5d020	54	* Arguments : delay The delay required
mshoemaker	0:0826fcc5d020	55	*
mshoemaker	0:0826fcc5d020	56	* Returns : None
mshoemaker	0:0826fcc5d020	57	*
mshoemaker	0:0826fcc5d020	58	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	59	*/
mshoemaker	0:0826fcc5d020	60
mshoemaker	0:0826fcc5d020	61	void Host_DelayMS (USB_INT32U delay)
mshoemaker	0:0826fcc5d020	62	{
mshoemaker	0:0826fcc5d020	63	volatile USB_INT32U i;
mshoemaker	0:0826fcc5d020	64
mshoemaker	0:0826fcc5d020	65
mshoemaker	0:0826fcc5d020	66	for (i = 0; i < delay; i++) {
mshoemaker	0:0826fcc5d020	67	Host_DelayUS(1000);
mshoemaker	0:0826fcc5d020	68	}
mshoemaker	0:0826fcc5d020	69	}
mshoemaker	0:0826fcc5d020	70
mshoemaker	0:0826fcc5d020	71	/*
mshoemaker	0:0826fcc5d020	72	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	73	* DELAY IN MICRO SECONDS
mshoemaker	0:0826fcc5d020	74	*
mshoemaker	0:0826fcc5d020	75	* Description: This function provides a delay in micro seconds
mshoemaker	0:0826fcc5d020	76	*
mshoemaker	0:0826fcc5d020	77	* Arguments : delay The delay required
mshoemaker	0:0826fcc5d020	78	*
mshoemaker	0:0826fcc5d020	79	* Returns : None
mshoemaker	0:0826fcc5d020	80	*
mshoemaker	0:0826fcc5d020	81	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	82	*/
mshoemaker	0:0826fcc5d020	83
mshoemaker	0:0826fcc5d020	84	void Host_DelayUS (USB_INT32U delay)
mshoemaker	0:0826fcc5d020	85	{
mshoemaker	0:0826fcc5d020	86	volatile USB_INT32U i;
mshoemaker	0:0826fcc5d020	87
mshoemaker	0:0826fcc5d020	88
mshoemaker	0:0826fcc5d020	89	for (i = 0; i < (4 * delay); i++) { /* This logic was tested. It gives app. 1 micro sec delay */
mshoemaker	0:0826fcc5d020	90	;
mshoemaker	0:0826fcc5d020	91	}
mshoemaker	0:0826fcc5d020	92	}
mshoemaker	0:0826fcc5d020	93
mshoemaker	0:0826fcc5d020	94	/*
mshoemaker	0:0826fcc5d020	95	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	96	* INITIALIZE THE HOST CONTROLLER
mshoemaker	0:0826fcc5d020	97	*
mshoemaker	0:0826fcc5d020	98	* Description: This function initializes lpc17xx host controller
mshoemaker	0:0826fcc5d020	99	*
mshoemaker	0:0826fcc5d020	100	* Arguments : None
mshoemaker	0:0826fcc5d020	101	*
mshoemaker	0:0826fcc5d020	102	* Returns :
mshoemaker	0:0826fcc5d020	103	*
mshoemaker	0:0826fcc5d020	104	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	105	*/
mshoemaker	0:0826fcc5d020	106	void Host_Init (void)
mshoemaker	0:0826fcc5d020	107	{
mshoemaker	0:0826fcc5d020	108	USB_INT32U HostBaseAddr;
mshoemaker	0:0826fcc5d020	109
mshoemaker	0:0826fcc5d020	110	LPC_SC->PCONP \|= (1UL<<31);
mshoemaker	0:0826fcc5d020	111	LPC_USB->OTGClkCtrl = 0x0000001F;
mshoemaker	0:0826fcc5d020	112	while ((LPC_USB->OTGClkSt & 0x0000001F) == 0) { /* Host clock is available */
mshoemaker	0:0826fcc5d020	113	;
mshoemaker	0:0826fcc5d020	114	}
mshoemaker	0:0826fcc5d020	115
mshoemaker	0:0826fcc5d020	116	LPC_USB->OTGStCtrl = 0x3;
mshoemaker	0:0826fcc5d020	117
mshoemaker	0:0826fcc5d020	118	/* P1[18] = USB_UP_LED, 01 */
mshoemaker	0:0826fcc5d020	119	/* P1[19] = /USB_PPWR, 10 */
mshoemaker	0:0826fcc5d020	120	/* P1[22] = USB_PWRD, 10 */
mshoemaker	0:0826fcc5d020	121	/* P1[27] = /USB_OVRCR, 10 */
mshoemaker	0:0826fcc5d020	122	LPC_PINCON->PINSEL3 &= ~((3<<4) \| (3<<6) \| (3<<12) \| (3<<22));
mshoemaker	0:0826fcc5d020	123	LPC_PINCON->PINSEL3 \|= ((1<<4)\|(2<<6) \| (2<<12) \| (2<<22)); // 0x00802080
mshoemaker	0:0826fcc5d020	124
mshoemaker	0:0826fcc5d020	125	/* P0[29] = USB_D+, 01 */
mshoemaker	0:0826fcc5d020	126	/* P0[30] = USB_D-, 01 */
mshoemaker	0:0826fcc5d020	127	LPC_PINCON->PINSEL1 &= ~((3<<26) \| (3<<28));
mshoemaker	0:0826fcc5d020	128	LPC_PINCON->PINSEL1 \|= ((1<<26)\|(1<<28)); // 0x14000000
mshoemaker	0:0826fcc5d020	129
mshoemaker	0:0826fcc5d020	130	PRINT_Log("Initializing Host Stack\n");
mshoemaker	0:0826fcc5d020	131
mshoemaker	0:0826fcc5d020	132	// For chip revision V01 and later
mshoemaker	0:0826fcc5d020	133	HostBaseAddr = 0x20080000;
mshoemaker	0:0826fcc5d020	134
mshoemaker	0:0826fcc5d020	135	Hcca = (volatile HCCA *)(HostBaseAddr+0x000);
mshoemaker	0:0826fcc5d020	136	TDHead = (volatile HCTD *)(HostBaseAddr+0x100);
mshoemaker	0:0826fcc5d020	137	TDTail = (volatile HCTD *)(HostBaseAddr+0x110);
mshoemaker	0:0826fcc5d020	138	EDCtrl = (volatile HCED *)(HostBaseAddr+0x120);
mshoemaker	0:0826fcc5d020	139	EDBulkIn = (volatile HCED *)(HostBaseAddr+0x130);
mshoemaker	0:0826fcc5d020	140	EDBulkOut = (volatile HCED *)(HostBaseAddr+0x140);
mshoemaker	0:0826fcc5d020	141	TDBuffer = (volatile USB_INT08U *)(HostBaseAddr+0x150);
mshoemaker	0:0826fcc5d020	142	FATBuffer = (volatile USB_INT08U *)(HostBaseAddr+0x1D0);
mshoemaker	0:0826fcc5d020	143	UserBuffer = (volatile USB_INT08U *)(HostBaseAddr+0x1000);
mshoemaker	0:0826fcc5d020	144
mshoemaker	0:0826fcc5d020	145	/* Initialize all the TDs, EDs and HCCA to 0 */
mshoemaker	0:0826fcc5d020	146	Host_EDInit(EDCtrl);
mshoemaker	0:0826fcc5d020	147	Host_EDInit(EDBulkIn);
mshoemaker	0:0826fcc5d020	148	Host_EDInit(EDBulkOut);
mshoemaker	0:0826fcc5d020	149	Host_TDInit(TDHead);
mshoemaker	0:0826fcc5d020	150	Host_TDInit(TDTail);
mshoemaker	0:0826fcc5d020	151	Host_HCCAInit(Hcca);
mshoemaker	0:0826fcc5d020	152
mshoemaker	0:0826fcc5d020	153
mshoemaker	0:0826fcc5d020	154	Host_DelayMS(50); /* Wait 50 ms before apply reset */
mshoemaker	0:0826fcc5d020	155	LPC_USB->HcControl = 0; /* HARDWARE RESET */
mshoemaker	0:0826fcc5d020	156	LPC_USB->HcControlHeadED = 0; /* Initialize Control list head to Zero */
mshoemaker	0:0826fcc5d020	157	LPC_USB->HcBulkHeadED = 0; /* Initialize Bulk list head to Zero */
mshoemaker	0:0826fcc5d020	158
mshoemaker	0:0826fcc5d020	159	/* SOFTWARE RESET */
mshoemaker	0:0826fcc5d020	160	LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR;
mshoemaker	0:0826fcc5d020	161	LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; /* Write Fm Interval and Largest Data Packet Counter */
mshoemaker	0:0826fcc5d020	162
mshoemaker	0:0826fcc5d020	163	/* Put HC in operational state */
mshoemaker	0:0826fcc5d020	164	LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) \| OR_CONTROL_HC_OPER;
mshoemaker	0:0826fcc5d020	165	LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC; /* Set Global Power */
mshoemaker	0:0826fcc5d020	166
mshoemaker	0:0826fcc5d020	167	LPC_USB->HcHCCA = (USB_INT32U)Hcca;
mshoemaker	0:0826fcc5d020	168	LPC_USB->HcInterruptStatus \|= LPC_USB->HcInterruptStatus; /* Clear Interrrupt Status */
mshoemaker	0:0826fcc5d020	169
mshoemaker	0:0826fcc5d020	170
mshoemaker	0:0826fcc5d020	171	LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE \|
mshoemaker	0:0826fcc5d020	172	OR_INTR_ENABLE_WDH \|
mshoemaker	0:0826fcc5d020	173	OR_INTR_ENABLE_RHSC;
mshoemaker	0:0826fcc5d020	174
mshoemaker	0:0826fcc5d020	175
mshoemaker	0:0826fcc5d020	176
mshoemaker	0:0826fcc5d020	177	/* Enable the USB Interrupt */
mshoemaker	0:0826fcc5d020	178	NVIC_EnableIRQ(USB_IRQn); /* enable USB interrupt */
mshoemaker	0:0826fcc5d020	179	NVIC_SetPriority (USB_IRQn, 0); /* highest priority */
mshoemaker	0:0826fcc5d020	180
mshoemaker	0:0826fcc5d020	181
mshoemaker	0:0826fcc5d020	182	PRINT_Log("Host Initialized\n");
mshoemaker	0:0826fcc5d020	183	}
mshoemaker	0:0826fcc5d020	184
mshoemaker	0:0826fcc5d020	185	/*
mshoemaker	0:0826fcc5d020	186	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	187	* INTERRUPT SERVICE ROUTINE
mshoemaker	0:0826fcc5d020	188	*
mshoemaker	0:0826fcc5d020	189	* Description: This function services the interrupt caused by host controller
mshoemaker	0:0826fcc5d020	190	*
mshoemaker	0:0826fcc5d020	191	* Arguments : None
mshoemaker	0:0826fcc5d020	192	*
mshoemaker	0:0826fcc5d020	193	* Returns : None
mshoemaker	0:0826fcc5d020	194	*
mshoemaker	0:0826fcc5d020	195	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	196	*/
mshoemaker	0:0826fcc5d020	197
mshoemaker	0:0826fcc5d020	198	void USB_IRQHandler (void)
mshoemaker	0:0826fcc5d020	199	{
mshoemaker	0:0826fcc5d020	200	USB_INT32U int_status;
mshoemaker	0:0826fcc5d020	201	USB_INT32U ie_status;
mshoemaker	0:0826fcc5d020	202
mshoemaker	0:0826fcc5d020	203	int_status = LPC_USB->HcInterruptStatus; /* Read Interrupt Status */
mshoemaker	0:0826fcc5d020	204	ie_status = LPC_USB->HcInterruptEnable; /* Read Interrupt enable status */
mshoemaker	0:0826fcc5d020	205
mshoemaker	0:0826fcc5d020	206	if (!(int_status & ie_status)) {
mshoemaker	0:0826fcc5d020	207	return;
mshoemaker	0:0826fcc5d020	208	} else {
mshoemaker	0:0826fcc5d020	209
mshoemaker	0:0826fcc5d020	210	int_status = int_status & ie_status;
mshoemaker	0:0826fcc5d020	211	if (int_status & OR_INTR_STATUS_RHSC) { /* Root hub status change interrupt */
mshoemaker	0:0826fcc5d020	212	if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) {
mshoemaker	0:0826fcc5d020	213	if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) {
mshoemaker	0:0826fcc5d020	214	/*
mshoemaker	0:0826fcc5d020	215	* When DRWE is on, Connect Status Change
mshoemaker	0:0826fcc5d020	216	* means a remote wakeup event.
mshoemaker	0:0826fcc5d020	217	*/
mshoemaker	0:0826fcc5d020	218	HOST_RhscIntr = 1;// JUST SOMETHING FOR A BREAKPOINT
mshoemaker	0:0826fcc5d020	219	}
mshoemaker	0:0826fcc5d020	220	else {
mshoemaker	0:0826fcc5d020	221	/*
mshoemaker	0:0826fcc5d020	222	* When DRWE is off, Connect Status Change
mshoemaker	0:0826fcc5d020	223	* is NOT a remote wakeup event
mshoemaker	0:0826fcc5d020	224	*/
mshoemaker	0:0826fcc5d020	225	if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) {
mshoemaker	0:0826fcc5d020	226	if (!gUSBConnected) {
mshoemaker	0:0826fcc5d020	227	HOST_TDControlStatus = 0;
mshoemaker	0:0826fcc5d020	228	HOST_WdhIntr = 0;
mshoemaker	0:0826fcc5d020	229	HOST_RhscIntr = 1;
mshoemaker	0:0826fcc5d020	230	gUSBConnected = 1;
mshoemaker	0:0826fcc5d020	231	}
mshoemaker	0:0826fcc5d020	232	else
mshoemaker	0:0826fcc5d020	233	PRINT_Log("Spurious status change (connected)?\n");
mshoemaker	0:0826fcc5d020	234	} else {
mshoemaker	0:0826fcc5d020	235	if (gUSBConnected) {
mshoemaker	0:0826fcc5d020	236	LPC_USB->HcInterruptEnable = 0; // why do we get multiple disc. rupts???
mshoemaker	0:0826fcc5d020	237	HOST_RhscIntr = 0;
mshoemaker	0:0826fcc5d020	238	gUSBConnected = 0;
mshoemaker	0:0826fcc5d020	239	}
mshoemaker	0:0826fcc5d020	240	else
mshoemaker	0:0826fcc5d020	241	PRINT_Log("Spurious status change (disconnected)?\n");
mshoemaker	0:0826fcc5d020	242	}
mshoemaker	0:0826fcc5d020	243	}
mshoemaker	0:0826fcc5d020	244	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC;
mshoemaker	0:0826fcc5d020	245	}
mshoemaker	0:0826fcc5d020	246	if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) {
mshoemaker	0:0826fcc5d020	247	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
mshoemaker	0:0826fcc5d020	248	}
mshoemaker	0:0826fcc5d020	249	}
mshoemaker	0:0826fcc5d020	250	if (int_status & OR_INTR_STATUS_WDH) { /* Writeback Done Head interrupt */
mshoemaker	0:0826fcc5d020	251	HOST_WdhIntr = 1;
mshoemaker	0:0826fcc5d020	252	HOST_TDControlStatus = (TDHead->Control >> 28) & 0xf;
mshoemaker	0:0826fcc5d020	253	}
mshoemaker	0:0826fcc5d020	254	LPC_USB->HcInterruptStatus = int_status; /* Clear interrupt status register */
mshoemaker	0:0826fcc5d020	255	}
mshoemaker	0:0826fcc5d020	256	return;
mshoemaker	0:0826fcc5d020	257	}
mshoemaker	0:0826fcc5d020	258
mshoemaker	0:0826fcc5d020	259	/*
mshoemaker	0:0826fcc5d020	260	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	261	* PROCESS TRANSFER DESCRIPTOR
mshoemaker	0:0826fcc5d020	262	*
mshoemaker	0:0826fcc5d020	263	* Description: This function processes the transfer descriptor
mshoemaker	0:0826fcc5d020	264	*
mshoemaker	0:0826fcc5d020	265	* Arguments : ed Endpoint descriptor that contains this transfer descriptor
mshoemaker	0:0826fcc5d020	266	* token SETUP, IN, OUT
mshoemaker	0:0826fcc5d020	267	* buffer Current Buffer Pointer of the transfer descriptor
mshoemaker	0:0826fcc5d020	268	* buffer_len Length of the buffer
mshoemaker	0:0826fcc5d020	269	*
mshoemaker	0:0826fcc5d020	270	* Returns : OK if TD submission is successful
mshoemaker	0:0826fcc5d020	271	* ERROR if TD submission fails
mshoemaker	0:0826fcc5d020	272	*
mshoemaker	0:0826fcc5d020	273	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	274	*/
mshoemaker	0:0826fcc5d020	275
mshoemaker	0:0826fcc5d020	276	USB_INT32S Host_ProcessTD (volatile HCED *ed,
mshoemaker	0:0826fcc5d020	277	volatile USB_INT32U token,
mshoemaker	0:0826fcc5d020	278	volatile USB_INT08U *buffer,
mshoemaker	0:0826fcc5d020	279	USB_INT32U buffer_len)
mshoemaker	0:0826fcc5d020	280	{
mshoemaker	0:0826fcc5d020	281	volatile USB_INT32U td_toggle;
mshoemaker	0:0826fcc5d020	282
mshoemaker	0:0826fcc5d020	283
mshoemaker	0:0826fcc5d020	284	if (ed == EDCtrl) {
mshoemaker	0:0826fcc5d020	285	if (token == TD_SETUP) {
mshoemaker	0:0826fcc5d020	286	td_toggle = TD_TOGGLE_0;
mshoemaker	0:0826fcc5d020	287	} else {
mshoemaker	0:0826fcc5d020	288	td_toggle = TD_TOGGLE_1;
mshoemaker	0:0826fcc5d020	289	}
mshoemaker	0:0826fcc5d020	290	} else {
mshoemaker	0:0826fcc5d020	291	td_toggle = 0;
mshoemaker	0:0826fcc5d020	292	}
mshoemaker	0:0826fcc5d020	293	TDHead->Control = (TD_ROUNDING \|
mshoemaker	0:0826fcc5d020	294	token \|
mshoemaker	0:0826fcc5d020	295	TD_DELAY_INT(0) \|
mshoemaker	0:0826fcc5d020	296	td_toggle \|
mshoemaker	0:0826fcc5d020	297	TD_CC);
mshoemaker	0:0826fcc5d020	298	TDTail->Control = 0;
mshoemaker	0:0826fcc5d020	299	TDHead->CurrBufPtr = (USB_INT32U) buffer;
mshoemaker	0:0826fcc5d020	300	TDTail->CurrBufPtr = 0;
mshoemaker	0:0826fcc5d020	301	TDHead->Next = (USB_INT32U) TDTail;
mshoemaker	0:0826fcc5d020	302	TDTail->Next = 0;
mshoemaker	0:0826fcc5d020	303	TDHead->BufEnd = (USB_INT32U)(buffer + (buffer_len - 1));
mshoemaker	0:0826fcc5d020	304	TDTail->BufEnd = 0;
mshoemaker	0:0826fcc5d020	305
mshoemaker	0:0826fcc5d020	306	ed->HeadTd = (USB_INT32U)TDHead \| ((ed->HeadTd) & 0x00000002);
mshoemaker	0:0826fcc5d020	307	ed->TailTd = (USB_INT32U)TDTail;
mshoemaker	0:0826fcc5d020	308	ed->Next = 0;
mshoemaker	0:0826fcc5d020	309
mshoemaker	0:0826fcc5d020	310	if (ed == EDCtrl) {
mshoemaker	0:0826fcc5d020	311	LPC_USB->HcControlHeadED = (USB_INT32U)ed;
mshoemaker	0:0826fcc5d020	312	LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus \| OR_CMD_STATUS_CLF;
mshoemaker	0:0826fcc5d020	313	LPC_USB->HcControl = LPC_USB->HcControl \| OR_CONTROL_CLE;
mshoemaker	0:0826fcc5d020	314	} else {
mshoemaker	0:0826fcc5d020	315	LPC_USB->HcBulkHeadED = (USB_INT32U)ed;
mshoemaker	0:0826fcc5d020	316	LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus \| OR_CMD_STATUS_BLF;
mshoemaker	0:0826fcc5d020	317	LPC_USB->HcControl = LPC_USB->HcControl \| OR_CONTROL_BLE;
mshoemaker	0:0826fcc5d020	318	}
mshoemaker	0:0826fcc5d020	319
mshoemaker	0:0826fcc5d020	320	Host_WDHWait();
mshoemaker	0:0826fcc5d020	321
mshoemaker	0:0826fcc5d020	322	// if (!(TDHead->Control & 0xF0000000)) {
mshoemaker	0:0826fcc5d020	323	if (!HOST_TDControlStatus) {
mshoemaker	0:0826fcc5d020	324	return (OK);
mshoemaker	0:0826fcc5d020	325	} else {
mshoemaker	0:0826fcc5d020	326	return (ERR_TD_FAIL);
mshoemaker	0:0826fcc5d020	327	}
mshoemaker	0:0826fcc5d020	328	}
mshoemaker	0:0826fcc5d020	329
mshoemaker	0:0826fcc5d020	330	/*
mshoemaker	0:0826fcc5d020	331	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	332	* ENUMERATE THE DEVICE
mshoemaker	0:0826fcc5d020	333	*
mshoemaker	0:0826fcc5d020	334	* Description: This function is used to enumerate the device connected
mshoemaker	0:0826fcc5d020	335	*
mshoemaker	0:0826fcc5d020	336	* Arguments : None
mshoemaker	0:0826fcc5d020	337	*
mshoemaker	0:0826fcc5d020	338	* Returns : None
mshoemaker	0:0826fcc5d020	339	*
mshoemaker	0:0826fcc5d020	340	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	341	*/
mshoemaker	0:0826fcc5d020	342
mshoemaker	0:0826fcc5d020	343	USB_INT32S Host_EnumDev (void)
mshoemaker	0:0826fcc5d020	344	{
mshoemaker	0:0826fcc5d020	345	USB_INT32S rc;
mshoemaker	0:0826fcc5d020	346
mshoemaker	0:0826fcc5d020	347	PRINT_Log("Connect a Mass Storage device\n");
mshoemaker	0:0826fcc5d020	348	while (!HOST_RhscIntr);
mshoemaker	0:0826fcc5d020	349	Host_DelayMS(100); /* USB 2.0 spec says atleast 50ms delay beore port reset */
mshoemaker	0:0826fcc5d020	350	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS; // Initiate port reset
mshoemaker	0:0826fcc5d020	351	while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS)
mshoemaker	0:0826fcc5d020	352	; // Wait for port reset to complete...
mshoemaker	0:0826fcc5d020	353	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; // ...and clear port reset signal
mshoemaker	0:0826fcc5d020	354	Host_DelayMS(200); /* Wait for 100 MS after port reset */
mshoemaker	0:0826fcc5d020	355
mshoemaker	0:0826fcc5d020	356	EDCtrl->Control = 8 << 16; /* Put max pkt size = 8 */
mshoemaker	0:0826fcc5d020	357	/* Read first 8 bytes of device desc */
mshoemaker	0:0826fcc5d020	358	rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_DEVICE, 0, TDBuffer, 8);
mshoemaker	0:0826fcc5d020	359	if (rc != OK) {
mshoemaker	0:0826fcc5d020	360	PRINT_Err(rc);
mshoemaker	0:0826fcc5d020	361	return (rc);
mshoemaker	0:0826fcc5d020	362	}
mshoemaker	0:0826fcc5d020	363	EDCtrl->Control = TDBuffer[7] << 16; /* Get max pkt size of endpoint 0 */
mshoemaker	0:0826fcc5d020	364	rc = HOST_SET_ADDRESS(1); /* Set the device address to 1 */
mshoemaker	0:0826fcc5d020	365	if (rc != OK) {
mshoemaker	0:0826fcc5d020	366	PRINT_Err(rc);
mshoemaker	0:0826fcc5d020	367	return (rc);
mshoemaker	0:0826fcc5d020	368	}
mshoemaker	0:0826fcc5d020	369	Host_DelayMS(2);
mshoemaker	0:0826fcc5d020	370	EDCtrl->Control = (EDCtrl->Control) \| 1; /* Modify control pipe with address 1 */
mshoemaker	0:0826fcc5d020	371	/* Get the configuration descriptor */
mshoemaker	0:0826fcc5d020	372	rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, 9);
mshoemaker	0:0826fcc5d020	373	if (rc != OK) {
mshoemaker	0:0826fcc5d020	374	PRINT_Err(rc);
mshoemaker	0:0826fcc5d020	375	return (rc);
mshoemaker	0:0826fcc5d020	376	}
mshoemaker	0:0826fcc5d020	377	/* Get the first configuration data */
mshoemaker	0:0826fcc5d020	378	rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, ReadLE16U(&TDBuffer[2]));
mshoemaker	0:0826fcc5d020	379	if (rc != OK) {
mshoemaker	0:0826fcc5d020	380	PRINT_Err(rc);
mshoemaker	0:0826fcc5d020	381	return (rc);
mshoemaker	0:0826fcc5d020	382	}
mshoemaker	0:0826fcc5d020	383	rc = MS_ParseConfiguration(); /* Parse the configuration */
mshoemaker	0:0826fcc5d020	384	if (rc != OK) {
mshoemaker	0:0826fcc5d020	385	PRINT_Err(rc);
mshoemaker	0:0826fcc5d020	386	return (rc);
mshoemaker	0:0826fcc5d020	387	}
mshoemaker	0:0826fcc5d020	388	rc = USBH_SET_CONFIGURATION(1); /* Select device configuration 1 */
mshoemaker	0:0826fcc5d020	389	if (rc != OK) {
mshoemaker	0:0826fcc5d020	390	PRINT_Err(rc);
mshoemaker	0:0826fcc5d020	391	}
mshoemaker	0:0826fcc5d020	392	Host_DelayMS(100); /* Some devices may require this delay */
mshoemaker	0:0826fcc5d020	393	return (rc);
mshoemaker	0:0826fcc5d020	394	}
mshoemaker	0:0826fcc5d020	395
mshoemaker	0:0826fcc5d020	396	/*
mshoemaker	0:0826fcc5d020	397	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	398	* RECEIVE THE CONTROL INFORMATION
mshoemaker	0:0826fcc5d020	399	*
mshoemaker	0:0826fcc5d020	400	* Description: This function is used to receive the control information
mshoemaker	0:0826fcc5d020	401	*
mshoemaker	0:0826fcc5d020	402	* Arguments : bm_request_type
mshoemaker	0:0826fcc5d020	403	* b_request
mshoemaker	0:0826fcc5d020	404	* w_value
mshoemaker	0:0826fcc5d020	405	* w_index
mshoemaker	0:0826fcc5d020	406	* w_length
mshoemaker	0:0826fcc5d020	407	* buffer
mshoemaker	0:0826fcc5d020	408	*
mshoemaker	0:0826fcc5d020	409	* Returns : OK if Success
mshoemaker	0:0826fcc5d020	410	* ERROR if Failed
mshoemaker	0:0826fcc5d020	411	*
mshoemaker	0:0826fcc5d020	412	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	413	*/
mshoemaker	0:0826fcc5d020	414
mshoemaker	0:0826fcc5d020	415	USB_INT32S Host_CtrlRecv ( USB_INT08U bm_request_type,
mshoemaker	0:0826fcc5d020	416	USB_INT08U b_request,
mshoemaker	0:0826fcc5d020	417	USB_INT16U w_value,
mshoemaker	0:0826fcc5d020	418	USB_INT16U w_index,
mshoemaker	0:0826fcc5d020	419	USB_INT16U w_length,
mshoemaker	0:0826fcc5d020	420	volatile USB_INT08U *buffer)
mshoemaker	0:0826fcc5d020	421	{
mshoemaker	0:0826fcc5d020	422	USB_INT32S rc;
mshoemaker	0:0826fcc5d020	423
mshoemaker	0:0826fcc5d020	424
mshoemaker	0:0826fcc5d020	425	Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
mshoemaker	0:0826fcc5d020	426	rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
mshoemaker	0:0826fcc5d020	427	if (rc == OK) {
mshoemaker	0:0826fcc5d020	428	if (w_length) {
mshoemaker	0:0826fcc5d020	429	rc = Host_ProcessTD(EDCtrl, TD_IN, TDBuffer, w_length);
mshoemaker	0:0826fcc5d020	430	}
mshoemaker	0:0826fcc5d020	431	if (rc == OK) {
mshoemaker	0:0826fcc5d020	432	rc = Host_ProcessTD(EDCtrl, TD_OUT, NULL, 0);
mshoemaker	0:0826fcc5d020	433	}
mshoemaker	0:0826fcc5d020	434	}
mshoemaker	0:0826fcc5d020	435	return (rc);
mshoemaker	0:0826fcc5d020	436	}
mshoemaker	0:0826fcc5d020	437
mshoemaker	0:0826fcc5d020	438	/*
mshoemaker	0:0826fcc5d020	439	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	440	* SEND THE CONTROL INFORMATION
mshoemaker	0:0826fcc5d020	441	*
mshoemaker	0:0826fcc5d020	442	* Description: This function is used to send the control information
mshoemaker	0:0826fcc5d020	443	*
mshoemaker	0:0826fcc5d020	444	* Arguments : None
mshoemaker	0:0826fcc5d020	445	*
mshoemaker	0:0826fcc5d020	446	* Returns : OK if Success
mshoemaker	0:0826fcc5d020	447	* ERR_INVALID_BOOTSIG if Failed
mshoemaker	0:0826fcc5d020	448	*
mshoemaker	0:0826fcc5d020	449	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	450	*/
mshoemaker	0:0826fcc5d020	451
mshoemaker	0:0826fcc5d020	452	USB_INT32S Host_CtrlSend ( USB_INT08U bm_request_type,
mshoemaker	0:0826fcc5d020	453	USB_INT08U b_request,
mshoemaker	0:0826fcc5d020	454	USB_INT16U w_value,
mshoemaker	0:0826fcc5d020	455	USB_INT16U w_index,
mshoemaker	0:0826fcc5d020	456	USB_INT16U w_length,
mshoemaker	0:0826fcc5d020	457	volatile USB_INT08U *buffer)
mshoemaker	0:0826fcc5d020	458	{
mshoemaker	0:0826fcc5d020	459	USB_INT32S rc;
mshoemaker	0:0826fcc5d020	460
mshoemaker	0:0826fcc5d020	461
mshoemaker	0:0826fcc5d020	462	Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
mshoemaker	0:0826fcc5d020	463
mshoemaker	0:0826fcc5d020	464	rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
mshoemaker	0:0826fcc5d020	465	if (rc == OK) {
mshoemaker	0:0826fcc5d020	466	if (w_length) {
mshoemaker	0:0826fcc5d020	467	rc = Host_ProcessTD(EDCtrl, TD_OUT, TDBuffer, w_length);
mshoemaker	0:0826fcc5d020	468	}
mshoemaker	0:0826fcc5d020	469	if (rc == OK) {
mshoemaker	0:0826fcc5d020	470	rc = Host_ProcessTD(EDCtrl, TD_IN, NULL, 0);
mshoemaker	0:0826fcc5d020	471	}
mshoemaker	0:0826fcc5d020	472	}
mshoemaker	0:0826fcc5d020	473	return (rc);
mshoemaker	0:0826fcc5d020	474	}
mshoemaker	0:0826fcc5d020	475
mshoemaker	0:0826fcc5d020	476	/*
mshoemaker	0:0826fcc5d020	477	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	478	* FILL SETUP PACKET
mshoemaker	0:0826fcc5d020	479	*
mshoemaker	0:0826fcc5d020	480	* Description: This function is used to fill the setup packet
mshoemaker	0:0826fcc5d020	481	*
mshoemaker	0:0826fcc5d020	482	* Arguments : None
mshoemaker	0:0826fcc5d020	483	*
mshoemaker	0:0826fcc5d020	484	* Returns : OK if Success
mshoemaker	0:0826fcc5d020	485	* ERR_INVALID_BOOTSIG if Failed
mshoemaker	0:0826fcc5d020	486	*
mshoemaker	0:0826fcc5d020	487	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	488	*/
mshoemaker	0:0826fcc5d020	489
mshoemaker	0:0826fcc5d020	490	void Host_FillSetup (USB_INT08U bm_request_type,
mshoemaker	0:0826fcc5d020	491	USB_INT08U b_request,
mshoemaker	0:0826fcc5d020	492	USB_INT16U w_value,
mshoemaker	0:0826fcc5d020	493	USB_INT16U w_index,
mshoemaker	0:0826fcc5d020	494	USB_INT16U w_length)
mshoemaker	0:0826fcc5d020	495	{
mshoemaker	0:0826fcc5d020	496	int i;
mshoemaker	0:0826fcc5d020	497	for (i=0;i<w_length;i++)
mshoemaker	0:0826fcc5d020	498	TDBuffer[i] = 0;
mshoemaker	0:0826fcc5d020	499
mshoemaker	0:0826fcc5d020	500	TDBuffer[0] = bm_request_type;
mshoemaker	0:0826fcc5d020	501	TDBuffer[1] = b_request;
mshoemaker	0:0826fcc5d020	502	WriteLE16U(&TDBuffer[2], w_value);
mshoemaker	0:0826fcc5d020	503	WriteLE16U(&TDBuffer[4], w_index);
mshoemaker	0:0826fcc5d020	504	WriteLE16U(&TDBuffer[6], w_length);
mshoemaker	0:0826fcc5d020	505	}
mshoemaker	0:0826fcc5d020	506
mshoemaker	0:0826fcc5d020	507
mshoemaker	0:0826fcc5d020	508
mshoemaker	0:0826fcc5d020	509	/*
mshoemaker	0:0826fcc5d020	510	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	511	* INITIALIZE THE TRANSFER DESCRIPTOR
mshoemaker	0:0826fcc5d020	512	*
mshoemaker	0:0826fcc5d020	513	* Description: This function initializes transfer descriptor
mshoemaker	0:0826fcc5d020	514	*
mshoemaker	0:0826fcc5d020	515	* Arguments : Pointer to TD structure
mshoemaker	0:0826fcc5d020	516	*
mshoemaker	0:0826fcc5d020	517	* Returns : None
mshoemaker	0:0826fcc5d020	518	*
mshoemaker	0:0826fcc5d020	519	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	520	*/
mshoemaker	0:0826fcc5d020	521
mshoemaker	0:0826fcc5d020	522	void Host_TDInit (volatile HCTD *td)
mshoemaker	0:0826fcc5d020	523	{
mshoemaker	0:0826fcc5d020	524
mshoemaker	0:0826fcc5d020	525	td->Control = 0;
mshoemaker	0:0826fcc5d020	526	td->CurrBufPtr = 0;
mshoemaker	0:0826fcc5d020	527	td->Next = 0;
mshoemaker	0:0826fcc5d020	528	td->BufEnd = 0;
mshoemaker	0:0826fcc5d020	529	}
mshoemaker	0:0826fcc5d020	530
mshoemaker	0:0826fcc5d020	531	/*
mshoemaker	0:0826fcc5d020	532	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	533	* INITIALIZE THE ENDPOINT DESCRIPTOR
mshoemaker	0:0826fcc5d020	534	*
mshoemaker	0:0826fcc5d020	535	* Description: This function initializes endpoint descriptor
mshoemaker	0:0826fcc5d020	536	*
mshoemaker	0:0826fcc5d020	537	* Arguments : Pointer to ED strcuture
mshoemaker	0:0826fcc5d020	538	*
mshoemaker	0:0826fcc5d020	539	* Returns : None
mshoemaker	0:0826fcc5d020	540	*
mshoemaker	0:0826fcc5d020	541	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	542	*/
mshoemaker	0:0826fcc5d020	543
mshoemaker	0:0826fcc5d020	544	void Host_EDInit (volatile HCED *ed)
mshoemaker	0:0826fcc5d020	545	{
mshoemaker	0:0826fcc5d020	546
mshoemaker	0:0826fcc5d020	547	ed->Control = 0;
mshoemaker	0:0826fcc5d020	548	ed->TailTd = 0;
mshoemaker	0:0826fcc5d020	549	ed->HeadTd = 0;
mshoemaker	0:0826fcc5d020	550	ed->Next = 0;
mshoemaker	0:0826fcc5d020	551	}
mshoemaker	0:0826fcc5d020	552
mshoemaker	0:0826fcc5d020	553	/*
mshoemaker	0:0826fcc5d020	554	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	555	* INITIALIZE HOST CONTROLLER COMMUNICATIONS AREA
mshoemaker	0:0826fcc5d020	556	*
mshoemaker	0:0826fcc5d020	557	* Description: This function initializes host controller communications area
mshoemaker	0:0826fcc5d020	558	*
mshoemaker	0:0826fcc5d020	559	* Arguments : Pointer to HCCA
mshoemaker	0:0826fcc5d020	560	*
mshoemaker	0:0826fcc5d020	561	* Returns :
mshoemaker	0:0826fcc5d020	562	*
mshoemaker	0:0826fcc5d020	563	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	564	*/
mshoemaker	0:0826fcc5d020	565
mshoemaker	0:0826fcc5d020	566	void Host_HCCAInit (volatile HCCA *hcca)
mshoemaker	0:0826fcc5d020	567	{
mshoemaker	0:0826fcc5d020	568	USB_INT32U i;
mshoemaker	0:0826fcc5d020	569
mshoemaker	0:0826fcc5d020	570
mshoemaker	0:0826fcc5d020	571	for (i = 0; i < 32; i++) {
mshoemaker	0:0826fcc5d020	572
mshoemaker	0:0826fcc5d020	573	hcca->IntTable[i] = 0;
mshoemaker	0:0826fcc5d020	574	hcca->FrameNumber = 0;
mshoemaker	0:0826fcc5d020	575	hcca->DoneHead = 0;
mshoemaker	0:0826fcc5d020	576	}
mshoemaker	0:0826fcc5d020	577
mshoemaker	0:0826fcc5d020	578	}
mshoemaker	0:0826fcc5d020	579
mshoemaker	0:0826fcc5d020	580	/*
mshoemaker	0:0826fcc5d020	581	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	582	* WAIT FOR WDH INTERRUPT
mshoemaker	0:0826fcc5d020	583	*
mshoemaker	0:0826fcc5d020	584	* Description: This function is infinite loop which breaks when ever a WDH interrupt rises
mshoemaker	0:0826fcc5d020	585	*
mshoemaker	0:0826fcc5d020	586	* Arguments : None
mshoemaker	0:0826fcc5d020	587	*
mshoemaker	0:0826fcc5d020	588	* Returns : None
mshoemaker	0:0826fcc5d020	589	*
mshoemaker	0:0826fcc5d020	590	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	591	*/
mshoemaker	0:0826fcc5d020	592
mshoemaker	0:0826fcc5d020	593	void Host_WDHWait (void)
mshoemaker	0:0826fcc5d020	594	{
mshoemaker	0:0826fcc5d020	595	while (!HOST_WdhIntr) {
mshoemaker	0:0826fcc5d020	596	;
mshoemaker	0:0826fcc5d020	597	}
mshoemaker	0:0826fcc5d020	598	HOST_WdhIntr = 0;
mshoemaker	0:0826fcc5d020	599	}
mshoemaker	0:0826fcc5d020	600
mshoemaker	0:0826fcc5d020	601	/*
mshoemaker	0:0826fcc5d020	602	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	603	* READ LE 32U
mshoemaker	0:0826fcc5d020	604	*
mshoemaker	0:0826fcc5d020	605	* Description: This function is used to read an unsigned integer from a charecter buffer in the platform
mshoemaker	0:0826fcc5d020	606	* containing little endian processor
mshoemaker	0:0826fcc5d020	607	*
mshoemaker	0:0826fcc5d020	608	* Arguments : pmem Pointer to the charecter buffer
mshoemaker	0:0826fcc5d020	609	*
mshoemaker	0:0826fcc5d020	610	* Returns : val Unsigned integer
mshoemaker	0:0826fcc5d020	611	*
mshoemaker	0:0826fcc5d020	612	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	613	*/
mshoemaker	0:0826fcc5d020	614
mshoemaker	0:0826fcc5d020	615	USB_INT32U ReadLE32U (volatile USB_INT08U *pmem)
mshoemaker	0:0826fcc5d020	616	{
mshoemaker	0:0826fcc5d020	617	USB_INT32U val;
mshoemaker	0:0826fcc5d020	618
mshoemaker	0:0826fcc5d020	619	((USB_INT08U *)&val)[0] = pmem[0];
mshoemaker	0:0826fcc5d020	620	((USB_INT08U *)&val)[1] = pmem[1];
mshoemaker	0:0826fcc5d020	621	((USB_INT08U *)&val)[2] = pmem[2];
mshoemaker	0:0826fcc5d020	622	((USB_INT08U *)&val)[3] = pmem[3];
mshoemaker	0:0826fcc5d020	623
mshoemaker	0:0826fcc5d020	624	return (val);
mshoemaker	0:0826fcc5d020	625	}
mshoemaker	0:0826fcc5d020	626
mshoemaker	0:0826fcc5d020	627	/*
mshoemaker	0:0826fcc5d020	628	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	629	* WRITE LE 32U
mshoemaker	0:0826fcc5d020	630	*
mshoemaker	0:0826fcc5d020	631	* Description: This function is used to write an unsigned integer into a charecter buffer in the platform
mshoemaker	0:0826fcc5d020	632	* containing little endian processor.
mshoemaker	0:0826fcc5d020	633	*
mshoemaker	0:0826fcc5d020	634	* Arguments : pmem Pointer to the charecter buffer
mshoemaker	0:0826fcc5d020	635	* val Integer value to be placed in the charecter buffer
mshoemaker	0:0826fcc5d020	636	*
mshoemaker	0:0826fcc5d020	637	* Returns : None
mshoemaker	0:0826fcc5d020	638	*
mshoemaker	0:0826fcc5d020	639	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	640	*/
mshoemaker	0:0826fcc5d020	641
mshoemaker	0:0826fcc5d020	642	void WriteLE32U (volatile USB_INT08U *pmem,
mshoemaker	0:0826fcc5d020	643	USB_INT32U val)
mshoemaker	0:0826fcc5d020	644	{
mshoemaker	0:0826fcc5d020	645	pmem[0] = ((USB_INT08U *)&val)[0];
mshoemaker	0:0826fcc5d020	646	pmem[1] = ((USB_INT08U *)&val)[1];
mshoemaker	0:0826fcc5d020	647	pmem[2] = ((USB_INT08U *)&val)[2];
mshoemaker	0:0826fcc5d020	648	pmem[3] = ((USB_INT08U *)&val)[3];
mshoemaker	0:0826fcc5d020	649	}
mshoemaker	0:0826fcc5d020	650
mshoemaker	0:0826fcc5d020	651	/*
mshoemaker	0:0826fcc5d020	652	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	653	* READ LE 16U
mshoemaker	0:0826fcc5d020	654	*
mshoemaker	0:0826fcc5d020	655	* Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
mshoemaker	0:0826fcc5d020	656	* containing little endian processor
mshoemaker	0:0826fcc5d020	657	*
mshoemaker	0:0826fcc5d020	658	* Arguments : pmem Pointer to the charecter buffer
mshoemaker	0:0826fcc5d020	659	*
mshoemaker	0:0826fcc5d020	660	* Returns : val Unsigned short integer
mshoemaker	0:0826fcc5d020	661	*
mshoemaker	0:0826fcc5d020	662	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	663	*/
mshoemaker	0:0826fcc5d020	664
mshoemaker	0:0826fcc5d020	665	USB_INT16U ReadLE16U (volatile USB_INT08U *pmem)
mshoemaker	0:0826fcc5d020	666	{
mshoemaker	0:0826fcc5d020	667	USB_INT16U val;
mshoemaker	0:0826fcc5d020	668
mshoemaker	0:0826fcc5d020	669	((USB_INT08U *)&val)[0] = pmem[0];
mshoemaker	0:0826fcc5d020	670	((USB_INT08U *)&val)[1] = pmem[1];
mshoemaker	0:0826fcc5d020	671
mshoemaker	0:0826fcc5d020	672
mshoemaker	0:0826fcc5d020	673	return (val);
mshoemaker	0:0826fcc5d020	674	}
mshoemaker	0:0826fcc5d020	675
mshoemaker	0:0826fcc5d020	676	/*
mshoemaker	0:0826fcc5d020	677	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	678	* WRITE LE 16U
mshoemaker	0:0826fcc5d020	679	*
mshoemaker	0:0826fcc5d020	680	* Description: This function is used to write an unsigned short integer into a charecter buffer in the
mshoemaker	0:0826fcc5d020	681	* platform containing little endian processor
mshoemaker	0:0826fcc5d020	682	*
mshoemaker	0:0826fcc5d020	683	* Arguments : pmem Pointer to the charecter buffer
mshoemaker	0:0826fcc5d020	684	* val Value to be placed in the charecter buffer
mshoemaker	0:0826fcc5d020	685	*
mshoemaker	0:0826fcc5d020	686	* Returns : None
mshoemaker	0:0826fcc5d020	687	*
mshoemaker	0:0826fcc5d020	688	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	689	*/
mshoemaker	0:0826fcc5d020	690
mshoemaker	0:0826fcc5d020	691	void WriteLE16U (volatile USB_INT08U *pmem,
mshoemaker	0:0826fcc5d020	692	USB_INT16U val)
mshoemaker	0:0826fcc5d020	693	{
mshoemaker	0:0826fcc5d020	694	pmem[0] = ((USB_INT08U *)&val)[0];
mshoemaker	0:0826fcc5d020	695	pmem[1] = ((USB_INT08U *)&val)[1];
mshoemaker	0:0826fcc5d020	696	}
mshoemaker	0:0826fcc5d020	697
mshoemaker	0:0826fcc5d020	698	/*
mshoemaker	0:0826fcc5d020	699	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	700	* READ BE 32U
mshoemaker	0:0826fcc5d020	701	*
mshoemaker	0:0826fcc5d020	702	* Description: This function is used to read an unsigned integer from a charecter buffer in the platform
mshoemaker	0:0826fcc5d020	703	* containing big endian processor
mshoemaker	0:0826fcc5d020	704	*
mshoemaker	0:0826fcc5d020	705	* Arguments : pmem Pointer to the charecter buffer
mshoemaker	0:0826fcc5d020	706	*
mshoemaker	0:0826fcc5d020	707	* Returns : val Unsigned integer
mshoemaker	0:0826fcc5d020	708	*
mshoemaker	0:0826fcc5d020	709	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	710	*/
mshoemaker	0:0826fcc5d020	711
mshoemaker	0:0826fcc5d020	712	USB_INT32U ReadBE32U (volatile USB_INT08U *pmem)
mshoemaker	0:0826fcc5d020	713	{
mshoemaker	0:0826fcc5d020	714	USB_INT32U val;
mshoemaker	0:0826fcc5d020	715
mshoemaker	0:0826fcc5d020	716	((USB_INT08U *)&val)[0] = pmem[3];
mshoemaker	0:0826fcc5d020	717	((USB_INT08U *)&val)[1] = pmem[2];
mshoemaker	0:0826fcc5d020	718	((USB_INT08U *)&val)[2] = pmem[1];
mshoemaker	0:0826fcc5d020	719	((USB_INT08U *)&val)[3] = pmem[0];
mshoemaker	0:0826fcc5d020	720
mshoemaker	0:0826fcc5d020	721	return (val);
mshoemaker	0:0826fcc5d020	722	}
mshoemaker	0:0826fcc5d020	723
mshoemaker	0:0826fcc5d020	724	/*
mshoemaker	0:0826fcc5d020	725	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	726	* WRITE BE 32U
mshoemaker	0:0826fcc5d020	727	*
mshoemaker	0:0826fcc5d020	728	* Description: This function is used to write an unsigned integer into a charecter buffer in the platform
mshoemaker	0:0826fcc5d020	729	* containing big endian processor
mshoemaker	0:0826fcc5d020	730	*
mshoemaker	0:0826fcc5d020	731	* Arguments : pmem Pointer to the charecter buffer
mshoemaker	0:0826fcc5d020	732	* val Value to be placed in the charecter buffer
mshoemaker	0:0826fcc5d020	733	*
mshoemaker	0:0826fcc5d020	734	* Returns : None
mshoemaker	0:0826fcc5d020	735	*
mshoemaker	0:0826fcc5d020	736	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	737	*/
mshoemaker	0:0826fcc5d020	738
mshoemaker	0:0826fcc5d020	739	void WriteBE32U (volatile USB_INT08U *pmem,
mshoemaker	0:0826fcc5d020	740	USB_INT32U val)
mshoemaker	0:0826fcc5d020	741	{
mshoemaker	0:0826fcc5d020	742	pmem[0] = ((USB_INT08U *)&val)[3];
mshoemaker	0:0826fcc5d020	743	pmem[1] = ((USB_INT08U *)&val)[2];
mshoemaker	0:0826fcc5d020	744	pmem[2] = ((USB_INT08U *)&val)[1];
mshoemaker	0:0826fcc5d020	745	pmem[3] = ((USB_INT08U *)&val)[0];
mshoemaker	0:0826fcc5d020	746
mshoemaker	0:0826fcc5d020	747	}
mshoemaker	0:0826fcc5d020	748
mshoemaker	0:0826fcc5d020	749	/*
mshoemaker	0:0826fcc5d020	750	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	751	* READ BE 16U
mshoemaker	0:0826fcc5d020	752	*
mshoemaker	0:0826fcc5d020	753	* Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
mshoemaker	0:0826fcc5d020	754	* containing big endian processor
mshoemaker	0:0826fcc5d020	755	*
mshoemaker	0:0826fcc5d020	756	* Arguments : pmem Pointer to the charecter buffer
mshoemaker	0:0826fcc5d020	757	*
mshoemaker	0:0826fcc5d020	758	* Returns : val Unsigned short integer
mshoemaker	0:0826fcc5d020	759	*
mshoemaker	0:0826fcc5d020	760	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	761	*/
mshoemaker	0:0826fcc5d020	762
mshoemaker	0:0826fcc5d020	763	USB_INT16U ReadBE16U (volatile USB_INT08U *pmem)
mshoemaker	0:0826fcc5d020	764	{
mshoemaker	0:0826fcc5d020	765	USB_INT16U val;
mshoemaker	0:0826fcc5d020	766
mshoemaker	0:0826fcc5d020	767
mshoemaker	0:0826fcc5d020	768	((USB_INT08U *)&val)[0] = pmem[1];
mshoemaker	0:0826fcc5d020	769	((USB_INT08U *)&val)[1] = pmem[0];
mshoemaker	0:0826fcc5d020	770
mshoemaker	0:0826fcc5d020	771	return (val);
mshoemaker	0:0826fcc5d020	772	}
mshoemaker	0:0826fcc5d020	773
mshoemaker	0:0826fcc5d020	774	/*
mshoemaker	0:0826fcc5d020	775	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	776	* WRITE BE 16U
mshoemaker	0:0826fcc5d020	777	*
mshoemaker	0:0826fcc5d020	778	* Description: This function is used to write an unsigned short integer into the charecter buffer in the
mshoemaker	0:0826fcc5d020	779	* platform containing big endian processor
mshoemaker	0:0826fcc5d020	780	*
mshoemaker	0:0826fcc5d020	781	* Arguments : pmem Pointer to the charecter buffer
mshoemaker	0:0826fcc5d020	782	* val Value to be placed in the charecter buffer
mshoemaker	0:0826fcc5d020	783	*
mshoemaker	0:0826fcc5d020	784	* Returns : None
mshoemaker	0:0826fcc5d020	785	*
mshoemaker	0:0826fcc5d020	786	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	787	*/
mshoemaker	0:0826fcc5d020	788
mshoemaker	0:0826fcc5d020	789	void WriteBE16U (volatile USB_INT08U *pmem,
mshoemaker	0:0826fcc5d020	790	USB_INT16U val)
mshoemaker	0:0826fcc5d020	791	{
mshoemaker	0:0826fcc5d020	792	pmem[0] = ((USB_INT08U *)&val)[1];
mshoemaker	0:0826fcc5d020	793	pmem[1] = ((USB_INT08U *)&val)[0];
mshoemaker	0:0826fcc5d020	794	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	13 Jan 2010
Imports:	110
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	3

Host/usbhost_lpc17xx.c@0:0826fcc5d020, 2010-01-13 (annotated)

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