MSCUsbHost - MDX-20用の改造

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MDX-20用の改造

USBHostLite/usbhost_lpc17xx.c@0:e294af8d0e07, 2010-01-26 (annotated)

Committer:: igorsk
Date:: Tue Jan 26 23:25:56 2010 +0000
Revision:: 0:e294af8d0e07

Who changed what in which revision?

User	Revision	Line number	New contents of line
igorsk	0:e294af8d0e07	1	/*
igorsk	0:e294af8d0e07	2	**************************************************************************************************************
igorsk	0:e294af8d0e07	3	* NXP USB Host Stack
igorsk	0:e294af8d0e07	4	*
igorsk	0:e294af8d0e07	5	* (c) Copyright 2008, NXP SemiConductors
igorsk	0:e294af8d0e07	6	* (c) Copyright 2008, OnChip Technologies LLC
igorsk	0:e294af8d0e07	7	* All Rights Reserved
igorsk	0:e294af8d0e07	8	*
igorsk	0:e294af8d0e07	9	* www.nxp.com
igorsk	0:e294af8d0e07	10	* www.onchiptech.com
igorsk	0:e294af8d0e07	11	*
igorsk	0:e294af8d0e07	12	* File : usbhost_lpc17xx.c
igorsk	0:e294af8d0e07	13	* Programmer(s) : Ravikanth.P
igorsk	0:e294af8d0e07	14	* Version :
igorsk	0:e294af8d0e07	15	*
igorsk	0:e294af8d0e07	16	**************************************************************************************************************
igorsk	0:e294af8d0e07	17	*/
igorsk	0:e294af8d0e07	18
igorsk	0:e294af8d0e07	19	/*
igorsk	0:e294af8d0e07	20	**************************************************************************************************************
igorsk	0:e294af8d0e07	21	* INCLUDE HEADER FILES
igorsk	0:e294af8d0e07	22	**************************************************************************************************************
igorsk	0:e294af8d0e07	23	*/
igorsk	0:e294af8d0e07	24
igorsk	0:e294af8d0e07	25	#include "usbhost_lpc17xx.h"
igorsk	0:e294af8d0e07	26
igorsk	0:e294af8d0e07	27	/*
igorsk	0:e294af8d0e07	28	**************************************************************************************************************
igorsk	0:e294af8d0e07	29	* GLOBAL VARIABLES
igorsk	0:e294af8d0e07	30	**************************************************************************************************************
igorsk	0:e294af8d0e07	31	*/
igorsk	0:e294af8d0e07	32	int gUSBConnected;
igorsk	0:e294af8d0e07	33
igorsk	0:e294af8d0e07	34	volatile USB_INT32U HOST_RhscIntr = 0; /* Root Hub Status Change interrupt */
igorsk	0:e294af8d0e07	35	volatile USB_INT32U HOST_WdhIntr = 0; /* Semaphore to wait until the TD is submitted */
igorsk	0:e294af8d0e07	36	volatile USB_INT08U HOST_TDControlStatus = 0;
igorsk	0:e294af8d0e07	37	volatile HCED EDCtrl; / Control endpoint descriptor structure */
igorsk	0:e294af8d0e07	38	volatile HCED EDBulkIn; / BulkIn endpoint descriptor structure */
igorsk	0:e294af8d0e07	39	volatile HCED EDBulkOut; / BulkOut endpoint descriptor structure */
igorsk	0:e294af8d0e07	40	volatile HCTD TDHead; / Head transfer descriptor structure */
igorsk	0:e294af8d0e07	41	volatile HCTD TDTail; / Tail transfer descriptor structure */
igorsk	0:e294af8d0e07	42	volatile HCCA Hcca; / Host Controller Communications Area structure */
igorsk	0:e294af8d0e07	43	USB_INT16U TDBufNonVol; / Identical to TDBuffer just to reduce compiler warnings */
igorsk	0:e294af8d0e07	44	volatile USB_INT08U TDBuffer; / Current Buffer Pointer of transfer descriptor */
igorsk	0:e294af8d0e07	45
igorsk	0:e294af8d0e07	46	// USB host structures
igorsk	0:e294af8d0e07	47	// AHB SRAM block 1
igorsk	0:e294af8d0e07	48	#define HOSTBASEADDR 0x2007C000
igorsk	0:e294af8d0e07	49	// reserve memory for the linker
igorsk	0:e294af8d0e07	50	static USB_INT08U HostBuf[0x200] __attribute__((at(HOSTBASEADDR)));
igorsk	0:e294af8d0e07	51	/*
igorsk	0:e294af8d0e07	52	**************************************************************************************************************
igorsk	0:e294af8d0e07	53	* DELAY IN MILLI SECONDS
igorsk	0:e294af8d0e07	54	*
igorsk	0:e294af8d0e07	55	* Description: This function provides a delay in milli seconds
igorsk	0:e294af8d0e07	56	*
igorsk	0:e294af8d0e07	57	* Arguments : delay The delay required
igorsk	0:e294af8d0e07	58	*
igorsk	0:e294af8d0e07	59	* Returns : None
igorsk	0:e294af8d0e07	60	*
igorsk	0:e294af8d0e07	61	**************************************************************************************************************
igorsk	0:e294af8d0e07	62	*/
igorsk	0:e294af8d0e07	63
igorsk	0:e294af8d0e07	64	void Host_DelayMS (USB_INT32U delay)
igorsk	0:e294af8d0e07	65	{
igorsk	0:e294af8d0e07	66	volatile USB_INT32U i;
igorsk	0:e294af8d0e07	67
igorsk	0:e294af8d0e07	68
igorsk	0:e294af8d0e07	69	for (i = 0; i < delay; i++) {
igorsk	0:e294af8d0e07	70	Host_DelayUS(1000);
igorsk	0:e294af8d0e07	71	}
igorsk	0:e294af8d0e07	72	}
igorsk	0:e294af8d0e07	73
igorsk	0:e294af8d0e07	74	/*
igorsk	0:e294af8d0e07	75	**************************************************************************************************************
igorsk	0:e294af8d0e07	76	* DELAY IN MICRO SECONDS
igorsk	0:e294af8d0e07	77	*
igorsk	0:e294af8d0e07	78	* Description: This function provides a delay in micro seconds
igorsk	0:e294af8d0e07	79	*
igorsk	0:e294af8d0e07	80	* Arguments : delay The delay required
igorsk	0:e294af8d0e07	81	*
igorsk	0:e294af8d0e07	82	* Returns : None
igorsk	0:e294af8d0e07	83	*
igorsk	0:e294af8d0e07	84	**************************************************************************************************************
igorsk	0:e294af8d0e07	85	*/
igorsk	0:e294af8d0e07	86
igorsk	0:e294af8d0e07	87	void Host_DelayUS (USB_INT32U delay)
igorsk	0:e294af8d0e07	88	{
igorsk	0:e294af8d0e07	89	volatile USB_INT32U i;
igorsk	0:e294af8d0e07	90
igorsk	0:e294af8d0e07	91
igorsk	0:e294af8d0e07	92	for (i = 0; i < (4 * delay); i++) { /* This logic was tested. It gives app. 1 micro sec delay */
igorsk	0:e294af8d0e07	93	;
igorsk	0:e294af8d0e07	94	}
igorsk	0:e294af8d0e07	95	}
igorsk	0:e294af8d0e07	96
igorsk	0:e294af8d0e07	97	// bits of the USB/OTG clock control register
igorsk	0:e294af8d0e07	98	#define HOST_CLK_EN (1<<0)
igorsk	0:e294af8d0e07	99	#define DEV_CLK_EN (1<<1)
igorsk	0:e294af8d0e07	100	#define PORTSEL_CLK_EN (1<<3)
igorsk	0:e294af8d0e07	101	#define AHB_CLK_EN (1<<4)
igorsk	0:e294af8d0e07	102
igorsk	0:e294af8d0e07	103	// bits of the USB/OTG clock status register
igorsk	0:e294af8d0e07	104	#define HOST_CLK_ON (1<<0)
igorsk	0:e294af8d0e07	105	#define DEV_CLK_ON (1<<1)
igorsk	0:e294af8d0e07	106	#define PORTSEL_CLK_ON (1<<3)
igorsk	0:e294af8d0e07	107	#define AHB_CLK_ON (1<<4)
igorsk	0:e294af8d0e07	108
igorsk	0:e294af8d0e07	109	// we need host clock, OTG/portsel clock and AHB clock
igorsk	0:e294af8d0e07	110	#define CLOCK_MASK (HOST_CLK_EN \| PORTSEL_CLK_EN \| AHB_CLK_EN)
igorsk	0:e294af8d0e07	111
igorsk	0:e294af8d0e07	112	/*
igorsk	0:e294af8d0e07	113	**************************************************************************************************************
igorsk	0:e294af8d0e07	114	* INITIALIZE THE HOST CONTROLLER
igorsk	0:e294af8d0e07	115	*
igorsk	0:e294af8d0e07	116	* Description: This function initializes lpc17xx host controller
igorsk	0:e294af8d0e07	117	*
igorsk	0:e294af8d0e07	118	* Arguments : None
igorsk	0:e294af8d0e07	119	*
igorsk	0:e294af8d0e07	120	* Returns :
igorsk	0:e294af8d0e07	121	*
igorsk	0:e294af8d0e07	122	**************************************************************************************************************
igorsk	0:e294af8d0e07	123	*/
igorsk	0:e294af8d0e07	124	void Host_Init (void)
igorsk	0:e294af8d0e07	125	{
igorsk	0:e294af8d0e07	126	PRINT_Log("In Host_Init\n");
igorsk	0:e294af8d0e07	127	NVIC_DisableIRQ(USB_IRQn); /* Disable the USB interrupt source */
igorsk	0:e294af8d0e07	128
igorsk	0:e294af8d0e07	129	// turn on power for USB
igorsk	0:e294af8d0e07	130	LPC_SC->PCONP \|= (1UL<<31);
igorsk	0:e294af8d0e07	131	// Enable USB host clock, port selection and AHB clock
igorsk	0:e294af8d0e07	132	LPC_USB->USBClkCtrl \|= CLOCK_MASK;
igorsk	0:e294af8d0e07	133	// Wait for clocks to become available
igorsk	0:e294af8d0e07	134	while ((LPC_USB->USBClkSt & CLOCK_MASK) != CLOCK_MASK)
igorsk	0:e294af8d0e07	135	;
igorsk	0:e294af8d0e07	136
igorsk	0:e294af8d0e07	137	// it seems the bits[0:1] mean the following
igorsk	0:e294af8d0e07	138	// 0: U1=device, U2=host
igorsk	0:e294af8d0e07	139	// 1: U1=host, U2=host
igorsk	0:e294af8d0e07	140	// 2: reserved
igorsk	0:e294af8d0e07	141	// 3: U1=host, U2=device
igorsk	0:e294af8d0e07	142	// NB: this register is only available if OTG clock (aka "port select") is enabled!!
igorsk	0:e294af8d0e07	143	// since we don't care about port 2, set just bit 0 to 1 (U1=host)
igorsk	0:e294af8d0e07	144	LPC_USB->OTGStCtrl \|= 1;
igorsk	0:e294af8d0e07	145
igorsk	0:e294af8d0e07	146	// now that we've configured the ports, we can turn off the portsel clock
igorsk	0:e294af8d0e07	147	LPC_USB->USBClkCtrl &= ~PORTSEL_CLK_EN;
igorsk	0:e294af8d0e07	148
igorsk	0:e294af8d0e07	149	// power pins are not connected on mbed, so we can skip them
igorsk	0:e294af8d0e07	150	/* P1[18] = USB_UP_LED, 01 */
igorsk	0:e294af8d0e07	151	/* P1[19] = /USB_PPWR, 10 */
igorsk	0:e294af8d0e07	152	/* P1[22] = USB_PWRD, 10 */
igorsk	0:e294af8d0e07	153	/* P1[27] = /USB_OVRCR, 10 */
igorsk	0:e294af8d0e07	154	/*LPC_PINCON->PINSEL3 &= ~((3<<4) \| (3<<6) \| (3<<12) \| (3<<22));
igorsk	0:e294af8d0e07	155	LPC_PINCON->PINSEL3 \|= ((1<<4)\|(2<<6) \| (2<<12) \| (2<<22)); // 0x00802080
igorsk	0:e294af8d0e07	156	*/
igorsk	0:e294af8d0e07	157
igorsk	0:e294af8d0e07	158	// configure USB D+/D- pins
igorsk	0:e294af8d0e07	159	/* P0[29] = USB_D+, 01 */
igorsk	0:e294af8d0e07	160	/* P0[30] = USB_D-, 01 */
igorsk	0:e294af8d0e07	161	LPC_PINCON->PINSEL1 &= ~((3<<26) \| (3<<28));
igorsk	0:e294af8d0e07	162	LPC_PINCON->PINSEL1 \|= ((1<<26)\|(1<<28)); // 0x14000000
igorsk	0:e294af8d0e07	163
igorsk	0:e294af8d0e07	164	PRINT_Log("Initializing Host Stack\n");
igorsk	0:e294af8d0e07	165
igorsk	0:e294af8d0e07	166	Hcca = (volatile HCCA *)(HostBuf+0x000);
igorsk	0:e294af8d0e07	167	TDHead = (volatile HCTD *)(HostBuf+0x100);
igorsk	0:e294af8d0e07	168	TDTail = (volatile HCTD *)(HostBuf+0x110);
igorsk	0:e294af8d0e07	169	EDCtrl = (volatile HCED *)(HostBuf+0x120);
igorsk	0:e294af8d0e07	170	EDBulkIn = (volatile HCED *)(HostBuf+0x130);
igorsk	0:e294af8d0e07	171	EDBulkOut = (volatile HCED *)(HostBuf+0x140);
igorsk	0:e294af8d0e07	172	TDBuffer = (volatile USB_INT08U *)(HostBuf+0x150);
igorsk	0:e294af8d0e07	173
igorsk	0:e294af8d0e07	174	/* Initialize all the TDs, EDs and HCCA to 0 */
igorsk	0:e294af8d0e07	175	Host_EDInit(EDCtrl);
igorsk	0:e294af8d0e07	176	Host_EDInit(EDBulkIn);
igorsk	0:e294af8d0e07	177	Host_EDInit(EDBulkOut);
igorsk	0:e294af8d0e07	178	Host_TDInit(TDHead);
igorsk	0:e294af8d0e07	179	Host_TDInit(TDTail);
igorsk	0:e294af8d0e07	180	Host_HCCAInit(Hcca);
igorsk	0:e294af8d0e07	181
igorsk	0:e294af8d0e07	182	Host_DelayMS(50); /* Wait 50 ms before apply reset */
igorsk	0:e294af8d0e07	183	LPC_USB->HcControl = 0; /* HARDWARE RESET */
igorsk	0:e294af8d0e07	184	LPC_USB->HcControlHeadED = 0; /* Initialize Control list head to Zero */
igorsk	0:e294af8d0e07	185	LPC_USB->HcBulkHeadED = 0; /* Initialize Bulk list head to Zero */
igorsk	0:e294af8d0e07	186
igorsk	0:e294af8d0e07	187	/* SOFTWARE RESET */
igorsk	0:e294af8d0e07	188	LPC_USB->HcCommandStatus = OR_CMD_STATUS_HCR;
igorsk	0:e294af8d0e07	189	LPC_USB->HcFmInterval = DEFAULT_FMINTERVAL; /* Write Fm Interval and Largest Data Packet Counter */
igorsk	0:e294af8d0e07	190
igorsk	0:e294af8d0e07	191	/* Put HC in operational state */
igorsk	0:e294af8d0e07	192	LPC_USB->HcControl = (LPC_USB->HcControl & (~OR_CONTROL_HCFS)) \| OR_CONTROL_HC_OPER;
igorsk	0:e294af8d0e07	193	LPC_USB->HcRhStatus = OR_RH_STATUS_LPSC; /* Set Global Power */
igorsk	0:e294af8d0e07	194
igorsk	0:e294af8d0e07	195	LPC_USB->HcHCCA = (USB_INT32U)Hcca;
igorsk	0:e294af8d0e07	196	LPC_USB->HcInterruptStatus \|= LPC_USB->HcInterruptStatus; /* Clear Interrrupt Status */
igorsk	0:e294af8d0e07	197
igorsk	0:e294af8d0e07	198
igorsk	0:e294af8d0e07	199	LPC_USB->HcInterruptEnable = OR_INTR_ENABLE_MIE \|
igorsk	0:e294af8d0e07	200	OR_INTR_ENABLE_WDH \|
igorsk	0:e294af8d0e07	201	OR_INTR_ENABLE_RHSC;
igorsk	0:e294af8d0e07	202
igorsk	0:e294af8d0e07	203	NVIC_SetPriority(USB_IRQn, 0); /* highest priority */
igorsk	0:e294af8d0e07	204	/* Enable the USB Interrupt */
igorsk	0:e294af8d0e07	205	NVIC_EnableIRQ(USB_IRQn);
igorsk	0:e294af8d0e07	206	PRINT_Log("Host Initialized\n");
igorsk	0:e294af8d0e07	207	}
igorsk	0:e294af8d0e07	208
igorsk	0:e294af8d0e07	209	/*
igorsk	0:e294af8d0e07	210	**************************************************************************************************************
igorsk	0:e294af8d0e07	211	* INTERRUPT SERVICE ROUTINE
igorsk	0:e294af8d0e07	212	*
igorsk	0:e294af8d0e07	213	* Description: This function services the interrupt caused by host controller
igorsk	0:e294af8d0e07	214	*
igorsk	0:e294af8d0e07	215	* Arguments : None
igorsk	0:e294af8d0e07	216	*
igorsk	0:e294af8d0e07	217	* Returns : None
igorsk	0:e294af8d0e07	218	*
igorsk	0:e294af8d0e07	219	**************************************************************************************************************
igorsk	0:e294af8d0e07	220	*/
igorsk	0:e294af8d0e07	221
igorsk	0:e294af8d0e07	222	void USB_IRQHandler (void) __irq
igorsk	0:e294af8d0e07	223	{
igorsk	0:e294af8d0e07	224	USB_INT32U int_status;
igorsk	0:e294af8d0e07	225	USB_INT32U ie_status;
igorsk	0:e294af8d0e07	226
igorsk	0:e294af8d0e07	227	int_status = LPC_USB->HcInterruptStatus; /* Read Interrupt Status */
igorsk	0:e294af8d0e07	228	ie_status = LPC_USB->HcInterruptEnable; /* Read Interrupt enable status */
igorsk	0:e294af8d0e07	229
igorsk	0:e294af8d0e07	230	if (!(int_status & ie_status)) {
igorsk	0:e294af8d0e07	231	return;
igorsk	0:e294af8d0e07	232	} else {
igorsk	0:e294af8d0e07	233
igorsk	0:e294af8d0e07	234	int_status = int_status & ie_status;
igorsk	0:e294af8d0e07	235	if (int_status & OR_INTR_STATUS_RHSC) { /* Root hub status change interrupt */
igorsk	0:e294af8d0e07	236	if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CSC) {
igorsk	0:e294af8d0e07	237	if (LPC_USB->HcRhStatus & OR_RH_STATUS_DRWE) {
igorsk	0:e294af8d0e07	238	/*
igorsk	0:e294af8d0e07	239	* When DRWE is on, Connect Status Change
igorsk	0:e294af8d0e07	240	* means a remote wakeup event.
igorsk	0:e294af8d0e07	241	*/
igorsk	0:e294af8d0e07	242	HOST_RhscIntr = 1;// JUST SOMETHING FOR A BREAKPOINT
igorsk	0:e294af8d0e07	243	}
igorsk	0:e294af8d0e07	244	else {
igorsk	0:e294af8d0e07	245	/*
igorsk	0:e294af8d0e07	246	* When DRWE is off, Connect Status Change
igorsk	0:e294af8d0e07	247	* is NOT a remote wakeup event
igorsk	0:e294af8d0e07	248	*/
igorsk	0:e294af8d0e07	249	if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_CCS) {
igorsk	0:e294af8d0e07	250	if (!gUSBConnected) {
igorsk	0:e294af8d0e07	251	HOST_TDControlStatus = 0;
igorsk	0:e294af8d0e07	252	HOST_WdhIntr = 0;
igorsk	0:e294af8d0e07	253	HOST_RhscIntr = 1;
igorsk	0:e294af8d0e07	254	gUSBConnected = 1;
igorsk	0:e294af8d0e07	255	}
igorsk	0:e294af8d0e07	256	else
igorsk	0:e294af8d0e07	257	PRINT_Log("Spurious status change (connected)?\n");
igorsk	0:e294af8d0e07	258	} else {
igorsk	0:e294af8d0e07	259	if (gUSBConnected) {
igorsk	0:e294af8d0e07	260	LPC_USB->HcInterruptEnable = 0; // why do we get multiple disc. rupts???
igorsk	0:e294af8d0e07	261	HOST_RhscIntr = 0;
igorsk	0:e294af8d0e07	262	gUSBConnected = 0;
igorsk	0:e294af8d0e07	263	}
igorsk	0:e294af8d0e07	264	else
igorsk	0:e294af8d0e07	265	PRINT_Log("Spurious status change (disconnected)?\n");
igorsk	0:e294af8d0e07	266	}
igorsk	0:e294af8d0e07	267	}
igorsk	0:e294af8d0e07	268	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_CSC;
igorsk	0:e294af8d0e07	269	}
igorsk	0:e294af8d0e07	270	if (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRSC) {
igorsk	0:e294af8d0e07	271	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC;
igorsk	0:e294af8d0e07	272	}
igorsk	0:e294af8d0e07	273	}
igorsk	0:e294af8d0e07	274	if (int_status & OR_INTR_STATUS_WDH) { /* Writeback Done Head interrupt */
igorsk	0:e294af8d0e07	275	HOST_WdhIntr = 1;
igorsk	0:e294af8d0e07	276	HOST_TDControlStatus = (TDHead->Control >> 28) & 0xf;
igorsk	0:e294af8d0e07	277	}
igorsk	0:e294af8d0e07	278	LPC_USB->HcInterruptStatus = int_status; /* Clear interrupt status register */
igorsk	0:e294af8d0e07	279	}
igorsk	0:e294af8d0e07	280	return;
igorsk	0:e294af8d0e07	281	}
igorsk	0:e294af8d0e07	282
igorsk	0:e294af8d0e07	283	/*
igorsk	0:e294af8d0e07	284	**************************************************************************************************************
igorsk	0:e294af8d0e07	285	* PROCESS TRANSFER DESCRIPTOR
igorsk	0:e294af8d0e07	286	*
igorsk	0:e294af8d0e07	287	* Description: This function processes the transfer descriptor
igorsk	0:e294af8d0e07	288	*
igorsk	0:e294af8d0e07	289	* Arguments : ed Endpoint descriptor that contains this transfer descriptor
igorsk	0:e294af8d0e07	290	* token SETUP, IN, OUT
igorsk	0:e294af8d0e07	291	* buffer Current Buffer Pointer of the transfer descriptor
igorsk	0:e294af8d0e07	292	* buffer_len Length of the buffer
igorsk	0:e294af8d0e07	293	*
igorsk	0:e294af8d0e07	294	* Returns : OK if TD submission is successful
igorsk	0:e294af8d0e07	295	* ERROR if TD submission fails
igorsk	0:e294af8d0e07	296	*
igorsk	0:e294af8d0e07	297	**************************************************************************************************************
igorsk	0:e294af8d0e07	298	*/
igorsk	0:e294af8d0e07	299
igorsk	0:e294af8d0e07	300	USB_INT32S Host_ProcessTD (volatile HCED *ed,
igorsk	0:e294af8d0e07	301	volatile USB_INT32U token,
igorsk	0:e294af8d0e07	302	volatile USB_INT08U *buffer,
igorsk	0:e294af8d0e07	303	USB_INT32U buffer_len)
igorsk	0:e294af8d0e07	304	{
igorsk	0:e294af8d0e07	305	volatile USB_INT32U td_toggle;
igorsk	0:e294af8d0e07	306
igorsk	0:e294af8d0e07	307
igorsk	0:e294af8d0e07	308	if (ed == EDCtrl) {
igorsk	0:e294af8d0e07	309	if (token == TD_SETUP) {
igorsk	0:e294af8d0e07	310	td_toggle = TD_TOGGLE_0;
igorsk	0:e294af8d0e07	311	} else {
igorsk	0:e294af8d0e07	312	td_toggle = TD_TOGGLE_1;
igorsk	0:e294af8d0e07	313	}
igorsk	0:e294af8d0e07	314	} else {
igorsk	0:e294af8d0e07	315	td_toggle = 0;
igorsk	0:e294af8d0e07	316	}
igorsk	0:e294af8d0e07	317	TDHead->Control = (TD_ROUNDING \|
igorsk	0:e294af8d0e07	318	token \|
igorsk	0:e294af8d0e07	319	TD_DELAY_INT(0) \|
igorsk	0:e294af8d0e07	320	td_toggle \|
igorsk	0:e294af8d0e07	321	TD_CC);
igorsk	0:e294af8d0e07	322	TDTail->Control = 0;
igorsk	0:e294af8d0e07	323	TDHead->CurrBufPtr = (USB_INT32U) buffer;
igorsk	0:e294af8d0e07	324	TDTail->CurrBufPtr = 0;
igorsk	0:e294af8d0e07	325	TDHead->Next = (USB_INT32U) TDTail;
igorsk	0:e294af8d0e07	326	TDTail->Next = 0;
igorsk	0:e294af8d0e07	327	TDHead->BufEnd = (USB_INT32U)(buffer + (buffer_len - 1));
igorsk	0:e294af8d0e07	328	TDTail->BufEnd = 0;
igorsk	0:e294af8d0e07	329
igorsk	0:e294af8d0e07	330	ed->HeadTd = (USB_INT32U)TDHead \| ((ed->HeadTd) & 0x00000002);
igorsk	0:e294af8d0e07	331	ed->TailTd = (USB_INT32U)TDTail;
igorsk	0:e294af8d0e07	332	ed->Next = 0;
igorsk	0:e294af8d0e07	333
igorsk	0:e294af8d0e07	334	if (ed == EDCtrl) {
igorsk	0:e294af8d0e07	335	LPC_USB->HcControlHeadED = (USB_INT32U)ed;
igorsk	0:e294af8d0e07	336	LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus \| OR_CMD_STATUS_CLF;
igorsk	0:e294af8d0e07	337	LPC_USB->HcControl = LPC_USB->HcControl \| OR_CONTROL_CLE;
igorsk	0:e294af8d0e07	338	} else {
igorsk	0:e294af8d0e07	339	LPC_USB->HcBulkHeadED = (USB_INT32U)ed;
igorsk	0:e294af8d0e07	340	LPC_USB->HcCommandStatus = LPC_USB->HcCommandStatus \| OR_CMD_STATUS_BLF;
igorsk	0:e294af8d0e07	341	LPC_USB->HcControl = LPC_USB->HcControl \| OR_CONTROL_BLE;
igorsk	0:e294af8d0e07	342	}
igorsk	0:e294af8d0e07	343
igorsk	0:e294af8d0e07	344	Host_WDHWait();
igorsk	0:e294af8d0e07	345
igorsk	0:e294af8d0e07	346	// if (!(TDHead->Control & 0xF0000000)) {
igorsk	0:e294af8d0e07	347	if (!HOST_TDControlStatus) {
igorsk	0:e294af8d0e07	348	return (OK);
igorsk	0:e294af8d0e07	349	} else {
igorsk	0:e294af8d0e07	350	return (ERR_TD_FAIL);
igorsk	0:e294af8d0e07	351	}
igorsk	0:e294af8d0e07	352	}
igorsk	0:e294af8d0e07	353
igorsk	0:e294af8d0e07	354	/*
igorsk	0:e294af8d0e07	355	**************************************************************************************************************
igorsk	0:e294af8d0e07	356	* ENUMERATE THE DEVICE
igorsk	0:e294af8d0e07	357	*
igorsk	0:e294af8d0e07	358	* Description: This function is used to enumerate the device connected
igorsk	0:e294af8d0e07	359	*
igorsk	0:e294af8d0e07	360	* Arguments : None
igorsk	0:e294af8d0e07	361	*
igorsk	0:e294af8d0e07	362	* Returns : None
igorsk	0:e294af8d0e07	363	*
igorsk	0:e294af8d0e07	364	**************************************************************************************************************
igorsk	0:e294af8d0e07	365	*/
igorsk	0:e294af8d0e07	366
igorsk	0:e294af8d0e07	367	USB_INT32S Host_EnumDev (void)
igorsk	0:e294af8d0e07	368	{
igorsk	0:e294af8d0e07	369	USB_INT32S rc;
igorsk	0:e294af8d0e07	370
igorsk	0:e294af8d0e07	371	PRINT_Log("Connect a Mass Storage device\n");
igorsk	0:e294af8d0e07	372	while (!HOST_RhscIntr)
igorsk	0:e294af8d0e07	373	__WFI();
igorsk	0:e294af8d0e07	374	Host_DelayMS(100); /* USB 2.0 spec says atleast 50ms delay beore port reset */
igorsk	0:e294af8d0e07	375	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRS; // Initiate port reset
igorsk	0:e294af8d0e07	376	while (LPC_USB->HcRhPortStatus1 & OR_RH_PORT_PRS)
igorsk	0:e294af8d0e07	377	__WFI(); // Wait for port reset to complete...
igorsk	0:e294af8d0e07	378	LPC_USB->HcRhPortStatus1 = OR_RH_PORT_PRSC; // ...and clear port reset signal
igorsk	0:e294af8d0e07	379	Host_DelayMS(200); /* Wait for 100 MS after port reset */
igorsk	0:e294af8d0e07	380
igorsk	0:e294af8d0e07	381	EDCtrl->Control = 8 << 16; /* Put max pkt size = 8 */
igorsk	0:e294af8d0e07	382	/* Read first 8 bytes of device desc */
igorsk	0:e294af8d0e07	383	rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_DEVICE, 0, TDBuffer, 8);
igorsk	0:e294af8d0e07	384	if (rc != OK) {
igorsk	0:e294af8d0e07	385	PRINT_Err(rc);
igorsk	0:e294af8d0e07	386	return (rc);
igorsk	0:e294af8d0e07	387	}
igorsk	0:e294af8d0e07	388	EDCtrl->Control = TDBuffer[7] << 16; /* Get max pkt size of endpoint 0 */
igorsk	0:e294af8d0e07	389	rc = HOST_SET_ADDRESS(1); /* Set the device address to 1 */
igorsk	0:e294af8d0e07	390	if (rc != OK) {
igorsk	0:e294af8d0e07	391	PRINT_Err(rc);
igorsk	0:e294af8d0e07	392	return (rc);
igorsk	0:e294af8d0e07	393	}
igorsk	0:e294af8d0e07	394	Host_DelayMS(2);
igorsk	0:e294af8d0e07	395	EDCtrl->Control = (EDCtrl->Control) \| 1; /* Modify control pipe with address 1 */
igorsk	0:e294af8d0e07	396	/* Get the configuration descriptor */
igorsk	0:e294af8d0e07	397	rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, 9);
igorsk	0:e294af8d0e07	398	if (rc != OK) {
igorsk	0:e294af8d0e07	399	PRINT_Err(rc);
igorsk	0:e294af8d0e07	400	return (rc);
igorsk	0:e294af8d0e07	401	}
igorsk	0:e294af8d0e07	402	/* Get the first configuration data */
igorsk	0:e294af8d0e07	403	rc = HOST_GET_DESCRIPTOR(USB_DESCRIPTOR_TYPE_CONFIGURATION, 0, TDBuffer, ReadLE16U(&TDBuffer[2]));
igorsk	0:e294af8d0e07	404	if (rc != OK) {
igorsk	0:e294af8d0e07	405	PRINT_Err(rc);
igorsk	0:e294af8d0e07	406	return (rc);
igorsk	0:e294af8d0e07	407	}
igorsk	0:e294af8d0e07	408	rc = MS_ParseConfiguration(); /* Parse the configuration */
igorsk	0:e294af8d0e07	409	if (rc != OK) {
igorsk	0:e294af8d0e07	410	PRINT_Err(rc);
igorsk	0:e294af8d0e07	411	return (rc);
igorsk	0:e294af8d0e07	412	}
igorsk	0:e294af8d0e07	413	rc = USBH_SET_CONFIGURATION(1); /* Select device configuration 1 */
igorsk	0:e294af8d0e07	414	if (rc != OK) {
igorsk	0:e294af8d0e07	415	PRINT_Err(rc);
igorsk	0:e294af8d0e07	416	}
igorsk	0:e294af8d0e07	417	Host_DelayMS(100); /* Some devices may require this delay */
igorsk	0:e294af8d0e07	418	return (rc);
igorsk	0:e294af8d0e07	419	}
igorsk	0:e294af8d0e07	420
igorsk	0:e294af8d0e07	421	/*
igorsk	0:e294af8d0e07	422	**************************************************************************************************************
igorsk	0:e294af8d0e07	423	* RECEIVE THE CONTROL INFORMATION
igorsk	0:e294af8d0e07	424	*
igorsk	0:e294af8d0e07	425	* Description: This function is used to receive the control information
igorsk	0:e294af8d0e07	426	*
igorsk	0:e294af8d0e07	427	* Arguments : bm_request_type
igorsk	0:e294af8d0e07	428	* b_request
igorsk	0:e294af8d0e07	429	* w_value
igorsk	0:e294af8d0e07	430	* w_index
igorsk	0:e294af8d0e07	431	* w_length
igorsk	0:e294af8d0e07	432	* buffer
igorsk	0:e294af8d0e07	433	*
igorsk	0:e294af8d0e07	434	* Returns : OK if Success
igorsk	0:e294af8d0e07	435	* ERROR if Failed
igorsk	0:e294af8d0e07	436	*
igorsk	0:e294af8d0e07	437	**************************************************************************************************************
igorsk	0:e294af8d0e07	438	*/
igorsk	0:e294af8d0e07	439
igorsk	0:e294af8d0e07	440	USB_INT32S Host_CtrlRecv ( USB_INT08U bm_request_type,
igorsk	0:e294af8d0e07	441	USB_INT08U b_request,
igorsk	0:e294af8d0e07	442	USB_INT16U w_value,
igorsk	0:e294af8d0e07	443	USB_INT16U w_index,
igorsk	0:e294af8d0e07	444	USB_INT16U w_length,
igorsk	0:e294af8d0e07	445	volatile USB_INT08U *buffer)
igorsk	0:e294af8d0e07	446	{
igorsk	0:e294af8d0e07	447	USB_INT32S rc;
igorsk	0:e294af8d0e07	448
igorsk	0:e294af8d0e07	449
igorsk	0:e294af8d0e07	450	Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
igorsk	0:e294af8d0e07	451	rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
igorsk	0:e294af8d0e07	452	if (rc == OK) {
igorsk	0:e294af8d0e07	453	if (w_length) {
igorsk	0:e294af8d0e07	454	rc = Host_ProcessTD(EDCtrl, TD_IN, TDBuffer, w_length);
igorsk	0:e294af8d0e07	455	}
igorsk	0:e294af8d0e07	456	if (rc == OK) {
igorsk	0:e294af8d0e07	457	rc = Host_ProcessTD(EDCtrl, TD_OUT, NULL, 0);
igorsk	0:e294af8d0e07	458	}
igorsk	0:e294af8d0e07	459	}
igorsk	0:e294af8d0e07	460	return (rc);
igorsk	0:e294af8d0e07	461	}
igorsk	0:e294af8d0e07	462
igorsk	0:e294af8d0e07	463	/*
igorsk	0:e294af8d0e07	464	**************************************************************************************************************
igorsk	0:e294af8d0e07	465	* SEND THE CONTROL INFORMATION
igorsk	0:e294af8d0e07	466	*
igorsk	0:e294af8d0e07	467	* Description: This function is used to send the control information
igorsk	0:e294af8d0e07	468	*
igorsk	0:e294af8d0e07	469	* Arguments : None
igorsk	0:e294af8d0e07	470	*
igorsk	0:e294af8d0e07	471	* Returns : OK if Success
igorsk	0:e294af8d0e07	472	* ERR_INVALID_BOOTSIG if Failed
igorsk	0:e294af8d0e07	473	*
igorsk	0:e294af8d0e07	474	**************************************************************************************************************
igorsk	0:e294af8d0e07	475	*/
igorsk	0:e294af8d0e07	476
igorsk	0:e294af8d0e07	477	USB_INT32S Host_CtrlSend ( USB_INT08U bm_request_type,
igorsk	0:e294af8d0e07	478	USB_INT08U b_request,
igorsk	0:e294af8d0e07	479	USB_INT16U w_value,
igorsk	0:e294af8d0e07	480	USB_INT16U w_index,
igorsk	0:e294af8d0e07	481	USB_INT16U w_length,
igorsk	0:e294af8d0e07	482	volatile USB_INT08U *buffer)
igorsk	0:e294af8d0e07	483	{
igorsk	0:e294af8d0e07	484	USB_INT32S rc;
igorsk	0:e294af8d0e07	485
igorsk	0:e294af8d0e07	486
igorsk	0:e294af8d0e07	487	Host_FillSetup(bm_request_type, b_request, w_value, w_index, w_length);
igorsk	0:e294af8d0e07	488
igorsk	0:e294af8d0e07	489	rc = Host_ProcessTD(EDCtrl, TD_SETUP, TDBuffer, 8);
igorsk	0:e294af8d0e07	490	if (rc == OK) {
igorsk	0:e294af8d0e07	491	if (w_length) {
igorsk	0:e294af8d0e07	492	rc = Host_ProcessTD(EDCtrl, TD_OUT, TDBuffer, w_length);
igorsk	0:e294af8d0e07	493	}
igorsk	0:e294af8d0e07	494	if (rc == OK) {
igorsk	0:e294af8d0e07	495	rc = Host_ProcessTD(EDCtrl, TD_IN, NULL, 0);
igorsk	0:e294af8d0e07	496	}
igorsk	0:e294af8d0e07	497	}
igorsk	0:e294af8d0e07	498	return (rc);
igorsk	0:e294af8d0e07	499	}
igorsk	0:e294af8d0e07	500
igorsk	0:e294af8d0e07	501	/*
igorsk	0:e294af8d0e07	502	**************************************************************************************************************
igorsk	0:e294af8d0e07	503	* FILL SETUP PACKET
igorsk	0:e294af8d0e07	504	*
igorsk	0:e294af8d0e07	505	* Description: This function is used to fill the setup packet
igorsk	0:e294af8d0e07	506	*
igorsk	0:e294af8d0e07	507	* Arguments : None
igorsk	0:e294af8d0e07	508	*
igorsk	0:e294af8d0e07	509	* Returns : OK if Success
igorsk	0:e294af8d0e07	510	* ERR_INVALID_BOOTSIG if Failed
igorsk	0:e294af8d0e07	511	*
igorsk	0:e294af8d0e07	512	**************************************************************************************************************
igorsk	0:e294af8d0e07	513	*/
igorsk	0:e294af8d0e07	514
igorsk	0:e294af8d0e07	515	void Host_FillSetup (USB_INT08U bm_request_type,
igorsk	0:e294af8d0e07	516	USB_INT08U b_request,
igorsk	0:e294af8d0e07	517	USB_INT16U w_value,
igorsk	0:e294af8d0e07	518	USB_INT16U w_index,
igorsk	0:e294af8d0e07	519	USB_INT16U w_length)
igorsk	0:e294af8d0e07	520	{
igorsk	0:e294af8d0e07	521	int i;
igorsk	0:e294af8d0e07	522	for (i=0;i<w_length;i++)
igorsk	0:e294af8d0e07	523	TDBuffer[i] = 0;
igorsk	0:e294af8d0e07	524
igorsk	0:e294af8d0e07	525	TDBuffer[0] = bm_request_type;
igorsk	0:e294af8d0e07	526	TDBuffer[1] = b_request;
igorsk	0:e294af8d0e07	527	WriteLE16U(&TDBuffer[2], w_value);
igorsk	0:e294af8d0e07	528	WriteLE16U(&TDBuffer[4], w_index);
igorsk	0:e294af8d0e07	529	WriteLE16U(&TDBuffer[6], w_length);
igorsk	0:e294af8d0e07	530	}
igorsk	0:e294af8d0e07	531
igorsk	0:e294af8d0e07	532
igorsk	0:e294af8d0e07	533
igorsk	0:e294af8d0e07	534	/*
igorsk	0:e294af8d0e07	535	**************************************************************************************************************
igorsk	0:e294af8d0e07	536	* INITIALIZE THE TRANSFER DESCRIPTOR
igorsk	0:e294af8d0e07	537	*
igorsk	0:e294af8d0e07	538	* Description: This function initializes transfer descriptor
igorsk	0:e294af8d0e07	539	*
igorsk	0:e294af8d0e07	540	* Arguments : Pointer to TD structure
igorsk	0:e294af8d0e07	541	*
igorsk	0:e294af8d0e07	542	* Returns : None
igorsk	0:e294af8d0e07	543	*
igorsk	0:e294af8d0e07	544	**************************************************************************************************************
igorsk	0:e294af8d0e07	545	*/
igorsk	0:e294af8d0e07	546
igorsk	0:e294af8d0e07	547	void Host_TDInit (volatile HCTD *td)
igorsk	0:e294af8d0e07	548	{
igorsk	0:e294af8d0e07	549
igorsk	0:e294af8d0e07	550	td->Control = 0;
igorsk	0:e294af8d0e07	551	td->CurrBufPtr = 0;
igorsk	0:e294af8d0e07	552	td->Next = 0;
igorsk	0:e294af8d0e07	553	td->BufEnd = 0;
igorsk	0:e294af8d0e07	554	}
igorsk	0:e294af8d0e07	555
igorsk	0:e294af8d0e07	556	/*
igorsk	0:e294af8d0e07	557	**************************************************************************************************************
igorsk	0:e294af8d0e07	558	* INITIALIZE THE ENDPOINT DESCRIPTOR
igorsk	0:e294af8d0e07	559	*
igorsk	0:e294af8d0e07	560	* Description: This function initializes endpoint descriptor
igorsk	0:e294af8d0e07	561	*
igorsk	0:e294af8d0e07	562	* Arguments : Pointer to ED strcuture
igorsk	0:e294af8d0e07	563	*
igorsk	0:e294af8d0e07	564	* Returns : None
igorsk	0:e294af8d0e07	565	*
igorsk	0:e294af8d0e07	566	**************************************************************************************************************
igorsk	0:e294af8d0e07	567	*/
igorsk	0:e294af8d0e07	568
igorsk	0:e294af8d0e07	569	void Host_EDInit (volatile HCED *ed)
igorsk	0:e294af8d0e07	570	{
igorsk	0:e294af8d0e07	571
igorsk	0:e294af8d0e07	572	ed->Control = 0;
igorsk	0:e294af8d0e07	573	ed->TailTd = 0;
igorsk	0:e294af8d0e07	574	ed->HeadTd = 0;
igorsk	0:e294af8d0e07	575	ed->Next = 0;
igorsk	0:e294af8d0e07	576	}
igorsk	0:e294af8d0e07	577
igorsk	0:e294af8d0e07	578	/*
igorsk	0:e294af8d0e07	579	**************************************************************************************************************
igorsk	0:e294af8d0e07	580	* INITIALIZE HOST CONTROLLER COMMUNICATIONS AREA
igorsk	0:e294af8d0e07	581	*
igorsk	0:e294af8d0e07	582	* Description: This function initializes host controller communications area
igorsk	0:e294af8d0e07	583	*
igorsk	0:e294af8d0e07	584	* Arguments : Pointer to HCCA
igorsk	0:e294af8d0e07	585	*
igorsk	0:e294af8d0e07	586	* Returns :
igorsk	0:e294af8d0e07	587	*
igorsk	0:e294af8d0e07	588	**************************************************************************************************************
igorsk	0:e294af8d0e07	589	*/
igorsk	0:e294af8d0e07	590
igorsk	0:e294af8d0e07	591	void Host_HCCAInit (volatile HCCA *hcca)
igorsk	0:e294af8d0e07	592	{
igorsk	0:e294af8d0e07	593	USB_INT32U i;
igorsk	0:e294af8d0e07	594
igorsk	0:e294af8d0e07	595
igorsk	0:e294af8d0e07	596	for (i = 0; i < 32; i++) {
igorsk	0:e294af8d0e07	597
igorsk	0:e294af8d0e07	598	hcca->IntTable[i] = 0;
igorsk	0:e294af8d0e07	599	hcca->FrameNumber = 0;
igorsk	0:e294af8d0e07	600	hcca->DoneHead = 0;
igorsk	0:e294af8d0e07	601	}
igorsk	0:e294af8d0e07	602
igorsk	0:e294af8d0e07	603	}
igorsk	0:e294af8d0e07	604
igorsk	0:e294af8d0e07	605	/*
igorsk	0:e294af8d0e07	606	**************************************************************************************************************
igorsk	0:e294af8d0e07	607	* WAIT FOR WDH INTERRUPT
igorsk	0:e294af8d0e07	608	*
igorsk	0:e294af8d0e07	609	* Description: This function is infinite loop which breaks when ever a WDH interrupt rises
igorsk	0:e294af8d0e07	610	*
igorsk	0:e294af8d0e07	611	* Arguments : None
igorsk	0:e294af8d0e07	612	*
igorsk	0:e294af8d0e07	613	* Returns : None
igorsk	0:e294af8d0e07	614	*
igorsk	0:e294af8d0e07	615	**************************************************************************************************************
igorsk	0:e294af8d0e07	616	*/
igorsk	0:e294af8d0e07	617
igorsk	0:e294af8d0e07	618	void Host_WDHWait (void)
igorsk	0:e294af8d0e07	619	{
igorsk	0:e294af8d0e07	620	while (!HOST_WdhIntr)
igorsk	0:e294af8d0e07	621	__WFI();
igorsk	0:e294af8d0e07	622
igorsk	0:e294af8d0e07	623	HOST_WdhIntr = 0;
igorsk	0:e294af8d0e07	624	}
igorsk	0:e294af8d0e07	625
igorsk	0:e294af8d0e07	626	/*
igorsk	0:e294af8d0e07	627	**************************************************************************************************************
igorsk	0:e294af8d0e07	628	* READ LE 32U
igorsk	0:e294af8d0e07	629	*
igorsk	0:e294af8d0e07	630	* Description: This function is used to read an unsigned integer from a character buffer in the platform
igorsk	0:e294af8d0e07	631	* containing little endian processor
igorsk	0:e294af8d0e07	632	*
igorsk	0:e294af8d0e07	633	* Arguments : pmem Pointer to the character buffer
igorsk	0:e294af8d0e07	634	*
igorsk	0:e294af8d0e07	635	* Returns : val Unsigned integer
igorsk	0:e294af8d0e07	636	*
igorsk	0:e294af8d0e07	637	**************************************************************************************************************
igorsk	0:e294af8d0e07	638	*/
igorsk	0:e294af8d0e07	639
igorsk	0:e294af8d0e07	640	USB_INT32U ReadLE32U (volatile USB_INT08U *pmem)
igorsk	0:e294af8d0e07	641	{
igorsk	0:e294af8d0e07	642	USB_INT32U val = (USB_INT32U)pmem;
igorsk	0:e294af8d0e07	643	#ifdef __BIG_ENDIAN
igorsk	0:e294af8d0e07	644	return __REV(val);
igorsk	0:e294af8d0e07	645	#else
igorsk	0:e294af8d0e07	646	return val;
igorsk	0:e294af8d0e07	647	#endif
igorsk	0:e294af8d0e07	648	}
igorsk	0:e294af8d0e07	649
igorsk	0:e294af8d0e07	650	/*
igorsk	0:e294af8d0e07	651	**************************************************************************************************************
igorsk	0:e294af8d0e07	652	* WRITE LE 32U
igorsk	0:e294af8d0e07	653	*
igorsk	0:e294af8d0e07	654	* Description: This function is used to write an unsigned integer into a charecter buffer in the platform
igorsk	0:e294af8d0e07	655	* containing little endian processor.
igorsk	0:e294af8d0e07	656	*
igorsk	0:e294af8d0e07	657	* Arguments : pmem Pointer to the charecter buffer
igorsk	0:e294af8d0e07	658	* val Integer value to be placed in the charecter buffer
igorsk	0:e294af8d0e07	659	*
igorsk	0:e294af8d0e07	660	* Returns : None
igorsk	0:e294af8d0e07	661	*
igorsk	0:e294af8d0e07	662	**************************************************************************************************************
igorsk	0:e294af8d0e07	663	*/
igorsk	0:e294af8d0e07	664
igorsk	0:e294af8d0e07	665	void WriteLE32U (volatile USB_INT08U *pmem,
igorsk	0:e294af8d0e07	666	USB_INT32U val)
igorsk	0:e294af8d0e07	667	{
igorsk	0:e294af8d0e07	668	#ifdef __BIG_ENDIAN
igorsk	0:e294af8d0e07	669	(USB_INT32U)pmem = __REV(val);
igorsk	0:e294af8d0e07	670	#else
igorsk	0:e294af8d0e07	671	(USB_INT32U)pmem = val;
igorsk	0:e294af8d0e07	672	#endif
igorsk	0:e294af8d0e07	673	}
igorsk	0:e294af8d0e07	674
igorsk	0:e294af8d0e07	675	/*
igorsk	0:e294af8d0e07	676	**************************************************************************************************************
igorsk	0:e294af8d0e07	677	* READ LE 16U
igorsk	0:e294af8d0e07	678	*
igorsk	0:e294af8d0e07	679	* Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
igorsk	0:e294af8d0e07	680	* containing little endian processor
igorsk	0:e294af8d0e07	681	*
igorsk	0:e294af8d0e07	682	* Arguments : pmem Pointer to the charecter buffer
igorsk	0:e294af8d0e07	683	*
igorsk	0:e294af8d0e07	684	* Returns : val Unsigned short integer
igorsk	0:e294af8d0e07	685	*
igorsk	0:e294af8d0e07	686	**************************************************************************************************************
igorsk	0:e294af8d0e07	687	*/
igorsk	0:e294af8d0e07	688
igorsk	0:e294af8d0e07	689	USB_INT16U ReadLE16U (volatile USB_INT08U *pmem)
igorsk	0:e294af8d0e07	690	{
igorsk	0:e294af8d0e07	691	USB_INT16U val = (USB_INT16U)pmem;
igorsk	0:e294af8d0e07	692	#ifdef __BIG_ENDIAN
igorsk	0:e294af8d0e07	693	return __REV16(val);
igorsk	0:e294af8d0e07	694	#else
igorsk	0:e294af8d0e07	695	return val;
igorsk	0:e294af8d0e07	696	#endif
igorsk	0:e294af8d0e07	697	}
igorsk	0:e294af8d0e07	698
igorsk	0:e294af8d0e07	699	/*
igorsk	0:e294af8d0e07	700	**************************************************************************************************************
igorsk	0:e294af8d0e07	701	* WRITE LE 16U
igorsk	0:e294af8d0e07	702	*
igorsk	0:e294af8d0e07	703	* Description: This function is used to write an unsigned short integer into a charecter buffer in the
igorsk	0:e294af8d0e07	704	* platform containing little endian processor
igorsk	0:e294af8d0e07	705	*
igorsk	0:e294af8d0e07	706	* Arguments : pmem Pointer to the charecter buffer
igorsk	0:e294af8d0e07	707	* val Value to be placed in the charecter buffer
igorsk	0:e294af8d0e07	708	*
igorsk	0:e294af8d0e07	709	* Returns : None
igorsk	0:e294af8d0e07	710	*
igorsk	0:e294af8d0e07	711	**************************************************************************************************************
igorsk	0:e294af8d0e07	712	*/
igorsk	0:e294af8d0e07	713
igorsk	0:e294af8d0e07	714	void WriteLE16U (volatile USB_INT08U *pmem,
igorsk	0:e294af8d0e07	715	USB_INT16U val)
igorsk	0:e294af8d0e07	716	{
igorsk	0:e294af8d0e07	717	#ifdef __BIG_ENDIAN
igorsk	0:e294af8d0e07	718	(USB_INT16U)pmem = (__REV16(val) & 0xFFFF);
igorsk	0:e294af8d0e07	719	#else
igorsk	0:e294af8d0e07	720	(USB_INT16U)pmem = val;
igorsk	0:e294af8d0e07	721	#endif
igorsk	0:e294af8d0e07	722	}
igorsk	0:e294af8d0e07	723
igorsk	0:e294af8d0e07	724	/*
igorsk	0:e294af8d0e07	725	**************************************************************************************************************
igorsk	0:e294af8d0e07	726	* READ BE 32U
igorsk	0:e294af8d0e07	727	*
igorsk	0:e294af8d0e07	728	* Description: This function is used to read an unsigned integer from a charecter buffer in the platform
igorsk	0:e294af8d0e07	729	* containing big endian processor
igorsk	0:e294af8d0e07	730	*
igorsk	0:e294af8d0e07	731	* Arguments : pmem Pointer to the charecter buffer
igorsk	0:e294af8d0e07	732	*
igorsk	0:e294af8d0e07	733	* Returns : val Unsigned integer
igorsk	0:e294af8d0e07	734	*
igorsk	0:e294af8d0e07	735	**************************************************************************************************************
igorsk	0:e294af8d0e07	736	*/
igorsk	0:e294af8d0e07	737
igorsk	0:e294af8d0e07	738	USB_INT32U ReadBE32U (volatile USB_INT08U *pmem)
igorsk	0:e294af8d0e07	739	{
igorsk	0:e294af8d0e07	740	USB_INT32U val = (USB_INT32U)pmem;
igorsk	0:e294af8d0e07	741	#ifdef __BIG_ENDIAN
igorsk	0:e294af8d0e07	742	return val;
igorsk	0:e294af8d0e07	743	#else
igorsk	0:e294af8d0e07	744	return __REV(val);
igorsk	0:e294af8d0e07	745	#endif
igorsk	0:e294af8d0e07	746	}
igorsk	0:e294af8d0e07	747
igorsk	0:e294af8d0e07	748	/*
igorsk	0:e294af8d0e07	749	**************************************************************************************************************
igorsk	0:e294af8d0e07	750	* WRITE BE 32U
igorsk	0:e294af8d0e07	751	*
igorsk	0:e294af8d0e07	752	* Description: This function is used to write an unsigned integer into a charecter buffer in the platform
igorsk	0:e294af8d0e07	753	* containing big endian processor
igorsk	0:e294af8d0e07	754	*
igorsk	0:e294af8d0e07	755	* Arguments : pmem Pointer to the charecter buffer
igorsk	0:e294af8d0e07	756	* val Value to be placed in the charecter buffer
igorsk	0:e294af8d0e07	757	*
igorsk	0:e294af8d0e07	758	* Returns : None
igorsk	0:e294af8d0e07	759	*
igorsk	0:e294af8d0e07	760	**************************************************************************************************************
igorsk	0:e294af8d0e07	761	*/
igorsk	0:e294af8d0e07	762
igorsk	0:e294af8d0e07	763	void WriteBE32U (volatile USB_INT08U *pmem,
igorsk	0:e294af8d0e07	764	USB_INT32U val)
igorsk	0:e294af8d0e07	765	{
igorsk	0:e294af8d0e07	766	#ifdef __BIG_ENDIAN
igorsk	0:e294af8d0e07	767	(USB_INT32U)pmem = val;
igorsk	0:e294af8d0e07	768	#else
igorsk	0:e294af8d0e07	769	(USB_INT32U)pmem = __REV(val);
igorsk	0:e294af8d0e07	770	#endif
igorsk	0:e294af8d0e07	771	}
igorsk	0:e294af8d0e07	772
igorsk	0:e294af8d0e07	773	/*
igorsk	0:e294af8d0e07	774	**************************************************************************************************************
igorsk	0:e294af8d0e07	775	* READ BE 16U
igorsk	0:e294af8d0e07	776	*
igorsk	0:e294af8d0e07	777	* Description: This function is used to read an unsigned short integer from a charecter buffer in the platform
igorsk	0:e294af8d0e07	778	* containing big endian processor
igorsk	0:e294af8d0e07	779	*
igorsk	0:e294af8d0e07	780	* Arguments : pmem Pointer to the charecter buffer
igorsk	0:e294af8d0e07	781	*
igorsk	0:e294af8d0e07	782	* Returns : val Unsigned short integer
igorsk	0:e294af8d0e07	783	*
igorsk	0:e294af8d0e07	784	**************************************************************************************************************
igorsk	0:e294af8d0e07	785	*/
igorsk	0:e294af8d0e07	786
igorsk	0:e294af8d0e07	787	USB_INT16U ReadBE16U (volatile USB_INT08U *pmem)
igorsk	0:e294af8d0e07	788	{
igorsk	0:e294af8d0e07	789	USB_INT16U val = (USB_INT16U)pmem;
igorsk	0:e294af8d0e07	790	#ifdef __BIG_ENDIAN
igorsk	0:e294af8d0e07	791	return val;
igorsk	0:e294af8d0e07	792	#else
igorsk	0:e294af8d0e07	793	return __REV16(val);
igorsk	0:e294af8d0e07	794	#endif
igorsk	0:e294af8d0e07	795	}
igorsk	0:e294af8d0e07	796
igorsk	0:e294af8d0e07	797	/*
igorsk	0:e294af8d0e07	798	**************************************************************************************************************
igorsk	0:e294af8d0e07	799	* WRITE BE 16U
igorsk	0:e294af8d0e07	800	*
igorsk	0:e294af8d0e07	801	* Description: This function is used to write an unsigned short integer into the charecter buffer in the
igorsk	0:e294af8d0e07	802	* platform containing big endian processor
igorsk	0:e294af8d0e07	803	*
igorsk	0:e294af8d0e07	804	* Arguments : pmem Pointer to the charecter buffer
igorsk	0:e294af8d0e07	805	* val Value to be placed in the charecter buffer
igorsk	0:e294af8d0e07	806	*
igorsk	0:e294af8d0e07	807	* Returns : None
igorsk	0:e294af8d0e07	808	*
igorsk	0:e294af8d0e07	809	**************************************************************************************************************
igorsk	0:e294af8d0e07	810	*/
igorsk	0:e294af8d0e07	811
igorsk	0:e294af8d0e07	812	void WriteBE16U (volatile USB_INT08U *pmem,
igorsk	0:e294af8d0e07	813	USB_INT16U val)
igorsk	0:e294af8d0e07	814	{
igorsk	0:e294af8d0e07	815	#ifdef __BIG_ENDIAN
igorsk	0:e294af8d0e07	816	(USB_INT16U)pmem = val;
igorsk	0:e294af8d0e07	817	#else
igorsk	0:e294af8d0e07	818	(USB_INT16U)pmem = (__REV16(val) & 0xFFFF);
igorsk	0:e294af8d0e07	819	#endif
igorsk	0:e294af8d0e07	820	}

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Type:	Library
Created:	23 Nov 2018
Imports:	4
Forks:	0
Commits:	11
Dependents:	0
Dependencies:	1
Followers:	1

USBHostLite/usbhost_lpc17xx.c@0:e294af8d0e07, 2010-01-26 (annotated)

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