MSCFileSystem - Audio usb

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Audio usb

Fork of MSCFileSystem by Chris Styles

USBHostLite/usbhost_ms.c@0:3e7d2baed4b4, 2011-04-05 (annotated)

Committer:: chris
Date:: Tue Apr 05 23:36:08 2011 +0000
Revision:: 0:3e7d2baed4b4

Who changed what in which revision?

User	Revision	Line number	New contents of line
chris	0:3e7d2baed4b4	1	/*
chris	0:3e7d2baed4b4	2	**************************************************************************************************************
chris	0:3e7d2baed4b4	3	* NXP USB Host Stack
chris	0:3e7d2baed4b4	4	*
chris	0:3e7d2baed4b4	5	* (c) Copyright 2008, NXP SemiConductors
chris	0:3e7d2baed4b4	6	* (c) Copyright 2008, OnChip Technologies LLC
chris	0:3e7d2baed4b4	7	* All Rights Reserved
chris	0:3e7d2baed4b4	8	*
chris	0:3e7d2baed4b4	9	* www.nxp.com
chris	0:3e7d2baed4b4	10	* www.onchiptech.com
chris	0:3e7d2baed4b4	11	*
chris	0:3e7d2baed4b4	12	* File : usbhost_ms.c
chris	0:3e7d2baed4b4	13	* Programmer(s) : Ravikanth.P
chris	0:3e7d2baed4b4	14	* Version :
chris	0:3e7d2baed4b4	15	*
chris	0:3e7d2baed4b4	16	**************************************************************************************************************
chris	0:3e7d2baed4b4	17	*/
chris	0:3e7d2baed4b4	18
chris	0:3e7d2baed4b4	19	/*
chris	0:3e7d2baed4b4	20	**************************************************************************************************************
chris	0:3e7d2baed4b4	21	* INCLUDE HEADER FILES
chris	0:3e7d2baed4b4	22	**************************************************************************************************************
chris	0:3e7d2baed4b4	23	*/
chris	0:3e7d2baed4b4	24
chris	0:3e7d2baed4b4	25	#include "usbhost_ms.h"
chris	0:3e7d2baed4b4	26
chris	0:3e7d2baed4b4	27	/*
chris	0:3e7d2baed4b4	28	**************************************************************************************************************
chris	0:3e7d2baed4b4	29	* GLOBAL VARIABLES
chris	0:3e7d2baed4b4	30	**************************************************************************************************************
chris	0:3e7d2baed4b4	31	*/
chris	0:3e7d2baed4b4	32
chris	0:3e7d2baed4b4	33	USB_INT32U MS_BlkSize;
chris	0:3e7d2baed4b4	34
chris	0:3e7d2baed4b4	35	/*
chris	0:3e7d2baed4b4	36	**************************************************************************************************************
chris	0:3e7d2baed4b4	37	* INITIALIZE MASS STORAGE INTERFACE
chris	0:3e7d2baed4b4	38	*
chris	0:3e7d2baed4b4	39	* Description: This function initializes the mass storage interface
chris	0:3e7d2baed4b4	40	*
chris	0:3e7d2baed4b4	41	* Arguments : None
chris	0:3e7d2baed4b4	42	*
chris	0:3e7d2baed4b4	43	* Returns : OK if Success
chris	0:3e7d2baed4b4	44	* ERR_INVALID_BOOTSIG if Failed
chris	0:3e7d2baed4b4	45	*
chris	0:3e7d2baed4b4	46	**************************************************************************************************************
chris	0:3e7d2baed4b4	47	*/
chris	0:3e7d2baed4b4	48
chris	0:3e7d2baed4b4	49	USB_INT32S MS_Init (USB_INT32U blkSize, USB_INT32U numBlks, USB_INT08U *inquiryResult)
chris	0:3e7d2baed4b4	50	{
chris	0:3e7d2baed4b4	51	USB_INT08U retry;
chris	0:3e7d2baed4b4	52	USB_INT32S rc;
chris	0:3e7d2baed4b4	53
chris	0:3e7d2baed4b4	54	MS_GetMaxLUN(); /* Get maximum logical unit number */
chris	0:3e7d2baed4b4	55	retry = 80;
chris	0:3e7d2baed4b4	56	while(retry) {
chris	0:3e7d2baed4b4	57	rc = MS_TestUnitReady(); /* Test whether the unit is ready */
chris	0:3e7d2baed4b4	58	if (rc == OK) {
chris	0:3e7d2baed4b4	59	break;
chris	0:3e7d2baed4b4	60	}
chris	0:3e7d2baed4b4	61	MS_GetSenseInfo(); /* Get sense information */
chris	0:3e7d2baed4b4	62	retry--;
chris	0:3e7d2baed4b4	63	}
chris	0:3e7d2baed4b4	64	if (rc != OK) {
chris	0:3e7d2baed4b4	65	PRINT_Err(rc);
chris	0:3e7d2baed4b4	66	return (rc);
chris	0:3e7d2baed4b4	67	}
chris	0:3e7d2baed4b4	68	rc = MS_ReadCapacity(numBlks, blkSize); /* Read capacity of the disk */
chris	0:3e7d2baed4b4	69	MS_BlkSize = *blkSize; // Set global
chris	0:3e7d2baed4b4	70	rc = MS_Inquire (inquiryResult);
chris	0:3e7d2baed4b4	71	return (rc);
chris	0:3e7d2baed4b4	72	}
chris	0:3e7d2baed4b4	73	/*
chris	0:3e7d2baed4b4	74	**************************************************************************************************************
chris	0:3e7d2baed4b4	75	* PARSE THE CONFIGURATION
chris	0:3e7d2baed4b4	76	*
chris	0:3e7d2baed4b4	77	* Description: This function is used to parse the configuration
chris	0:3e7d2baed4b4	78	*
chris	0:3e7d2baed4b4	79	* Arguments : None
chris	0:3e7d2baed4b4	80	*
chris	0:3e7d2baed4b4	81	* Returns : OK if Success
chris	0:3e7d2baed4b4	82	* ERR_INVALID_BOOTSIG if Failed
chris	0:3e7d2baed4b4	83	*
chris	0:3e7d2baed4b4	84	**************************************************************************************************************
chris	0:3e7d2baed4b4	85	*/
chris	0:3e7d2baed4b4	86
chris	0:3e7d2baed4b4	87	USB_INT32S MS_ParseConfiguration (void)
chris	0:3e7d2baed4b4	88	{
chris	0:3e7d2baed4b4	89	volatile USB_INT08U *desc_ptr;
chris	0:3e7d2baed4b4	90	USB_INT08U ms_int_found;
chris	0:3e7d2baed4b4	91
chris	0:3e7d2baed4b4	92
chris	0:3e7d2baed4b4	93	desc_ptr = TDBuffer;
chris	0:3e7d2baed4b4	94	ms_int_found = 0;
chris	0:3e7d2baed4b4	95
chris	0:3e7d2baed4b4	96	if (desc_ptr[1] != USB_DESCRIPTOR_TYPE_CONFIGURATION) {
chris	0:3e7d2baed4b4	97	return (ERR_BAD_CONFIGURATION);
chris	0:3e7d2baed4b4	98	}
chris	0:3e7d2baed4b4	99	desc_ptr += desc_ptr[0];
chris	0:3e7d2baed4b4	100
chris	0:3e7d2baed4b4	101	while (desc_ptr != TDBuffer + ReadLE16U(&TDBuffer[2])) {
chris	0:3e7d2baed4b4	102
chris	0:3e7d2baed4b4	103	switch (desc_ptr[1]) {
chris	0:3e7d2baed4b4	104
chris	0:3e7d2baed4b4	105	case USB_DESCRIPTOR_TYPE_INTERFACE: /* If it is an interface descriptor */
chris	0:3e7d2baed4b4	106	if (desc_ptr[5] == MASS_STORAGE_CLASS && /* check if the class is mass storage */
chris	0:3e7d2baed4b4	107	desc_ptr[6] == MASS_STORAGE_SUBCLASS_SCSI && /* check if the subclass is SCSI */
chris	0:3e7d2baed4b4	108	desc_ptr[7] == MASS_STORAGE_PROTOCOL_BO) { /* check if the protocol is Bulk only */
chris	0:3e7d2baed4b4	109	ms_int_found = 1;
chris	0:3e7d2baed4b4	110	desc_ptr += desc_ptr[0]; /* Move to next descriptor start */
chris	0:3e7d2baed4b4	111	}
chris	0:3e7d2baed4b4	112	break;
chris	0:3e7d2baed4b4	113
chris	0:3e7d2baed4b4	114	case USB_DESCRIPTOR_TYPE_ENDPOINT: /* If it is an endpoint descriptor */
chris	0:3e7d2baed4b4	115	if ((desc_ptr[3] & 0x03) == 0x02) { /* If it is Bulk endpoint */
chris	0:3e7d2baed4b4	116	if (desc_ptr[2] & 0x80) { /* If it is In endpoint */
chris	0:3e7d2baed4b4	117	EDBulkIn->Control = 1 \| /* USB address */
chris	0:3e7d2baed4b4	118	((desc_ptr[2] & 0x7F) << 7) \| /* Endpoint address */
chris	0:3e7d2baed4b4	119	(2 << 11) \| /* direction */
chris	0:3e7d2baed4b4	120	(ReadLE16U(&desc_ptr[4]) << 16); /* MaxPkt Size */
chris	0:3e7d2baed4b4	121	desc_ptr += desc_ptr[0]; /* Move to next descriptor start */
chris	0:3e7d2baed4b4	122	} else { /* If it is Out endpoint */
chris	0:3e7d2baed4b4	123	EDBulkOut->Control = 1 \| /* USB address */
chris	0:3e7d2baed4b4	124	((desc_ptr[2] & 0x7F) << 7) \| /* Endpoint address */
chris	0:3e7d2baed4b4	125	(1 << 11) \| /* direction */
chris	0:3e7d2baed4b4	126	(ReadLE16U(&desc_ptr[4]) << 16); /* MaxPkt Size */
chris	0:3e7d2baed4b4	127	desc_ptr += desc_ptr[0]; /* Move to next descriptor start */
chris	0:3e7d2baed4b4	128	}
chris	0:3e7d2baed4b4	129	} else { /* If it is not bulk end point */
chris	0:3e7d2baed4b4	130	desc_ptr += desc_ptr[0]; /* Move to next descriptor start */
chris	0:3e7d2baed4b4	131	}
chris	0:3e7d2baed4b4	132	break;
chris	0:3e7d2baed4b4	133
chris	0:3e7d2baed4b4	134	default: /* If the descriptor is neither interface nor endpoint */
chris	0:3e7d2baed4b4	135	desc_ptr += desc_ptr[0]; /* Move to next descriptor start */
chris	0:3e7d2baed4b4	136	break;
chris	0:3e7d2baed4b4	137	}
chris	0:3e7d2baed4b4	138	}
chris	0:3e7d2baed4b4	139	if (ms_int_found) {
chris	0:3e7d2baed4b4	140	PRINT_Log("Mass Storage device connected\n");
chris	0:3e7d2baed4b4	141	return (OK);
chris	0:3e7d2baed4b4	142	} else {
chris	0:3e7d2baed4b4	143	PRINT_Log("Not a Mass Storage device\n");
chris	0:3e7d2baed4b4	144	return (ERR_NO_MS_INTERFACE);
chris	0:3e7d2baed4b4	145	}
chris	0:3e7d2baed4b4	146	}
chris	0:3e7d2baed4b4	147
chris	0:3e7d2baed4b4	148	/*
chris	0:3e7d2baed4b4	149	**************************************************************************************************************
chris	0:3e7d2baed4b4	150	* GET MAXIMUM LOGICAL UNIT
chris	0:3e7d2baed4b4	151	*
chris	0:3e7d2baed4b4	152	* Description: This function returns the maximum logical unit from the device
chris	0:3e7d2baed4b4	153	*
chris	0:3e7d2baed4b4	154	* Arguments : None
chris	0:3e7d2baed4b4	155	*
chris	0:3e7d2baed4b4	156	* Returns : OK if Success
chris	0:3e7d2baed4b4	157	* ERR_INVALID_BOOTSIG if Failed
chris	0:3e7d2baed4b4	158	*
chris	0:3e7d2baed4b4	159	**************************************************************************************************************
chris	0:3e7d2baed4b4	160	*/
chris	0:3e7d2baed4b4	161
chris	0:3e7d2baed4b4	162	USB_INT32S MS_GetMaxLUN (void)
chris	0:3e7d2baed4b4	163	{
chris	0:3e7d2baed4b4	164	USB_INT32S rc;
chris	0:3e7d2baed4b4	165
chris	0:3e7d2baed4b4	166
chris	0:3e7d2baed4b4	167	rc = Host_CtrlRecv(USB_DEVICE_TO_HOST \| USB_REQUEST_TYPE_CLASS \| USB_RECIPIENT_INTERFACE,
chris	0:3e7d2baed4b4	168	MS_GET_MAX_LUN_REQ,
chris	0:3e7d2baed4b4	169	0,
chris	0:3e7d2baed4b4	170	0,
chris	0:3e7d2baed4b4	171	1,
chris	0:3e7d2baed4b4	172	TDBuffer);
chris	0:3e7d2baed4b4	173	return (rc);
chris	0:3e7d2baed4b4	174	}
chris	0:3e7d2baed4b4	175
chris	0:3e7d2baed4b4	176	/*
chris	0:3e7d2baed4b4	177	**************************************************************************************************************
chris	0:3e7d2baed4b4	178	* GET SENSE INFORMATION
chris	0:3e7d2baed4b4	179	*
chris	0:3e7d2baed4b4	180	* Description: This function is used to get sense information from the device
chris	0:3e7d2baed4b4	181	*
chris	0:3e7d2baed4b4	182	* Arguments : None
chris	0:3e7d2baed4b4	183	*
chris	0:3e7d2baed4b4	184	* Returns : OK if Success
chris	0:3e7d2baed4b4	185	* ERROR if Failed
chris	0:3e7d2baed4b4	186	*
chris	0:3e7d2baed4b4	187	**************************************************************************************************************
chris	0:3e7d2baed4b4	188	*/
chris	0:3e7d2baed4b4	189
chris	0:3e7d2baed4b4	190	USB_INT32S MS_GetSenseInfo (void)
chris	0:3e7d2baed4b4	191	{
chris	0:3e7d2baed4b4	192	USB_INT32S rc;
chris	0:3e7d2baed4b4	193
chris	0:3e7d2baed4b4	194
chris	0:3e7d2baed4b4	195	Fill_MSCommand(0, 0, 0, MS_DATA_DIR_IN, SCSI_CMD_REQUEST_SENSE, 6);
chris	0:3e7d2baed4b4	196	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
chris	0:3e7d2baed4b4	197	if (rc == OK) {
chris	0:3e7d2baed4b4	198	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, 18);
chris	0:3e7d2baed4b4	199	if (rc == OK) {
chris	0:3e7d2baed4b4	200	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
chris	0:3e7d2baed4b4	201	if (rc == OK) {
chris	0:3e7d2baed4b4	202	if (TDBuffer[12] != 0) {
chris	0:3e7d2baed4b4	203	rc = ERR_MS_CMD_FAILED;
chris	0:3e7d2baed4b4	204	}
chris	0:3e7d2baed4b4	205	}
chris	0:3e7d2baed4b4	206	}
chris	0:3e7d2baed4b4	207	}
chris	0:3e7d2baed4b4	208	return (rc);
chris	0:3e7d2baed4b4	209	}
chris	0:3e7d2baed4b4	210
chris	0:3e7d2baed4b4	211	/*
chris	0:3e7d2baed4b4	212	**************************************************************************************************************
chris	0:3e7d2baed4b4	213	* TEST UNIT READY
chris	0:3e7d2baed4b4	214	*
chris	0:3e7d2baed4b4	215	* Description: This function is used to test whether the unit is ready or not
chris	0:3e7d2baed4b4	216	*
chris	0:3e7d2baed4b4	217	* Arguments : None
chris	0:3e7d2baed4b4	218	*
chris	0:3e7d2baed4b4	219	* Returns : OK if Success
chris	0:3e7d2baed4b4	220	* ERROR if Failed
chris	0:3e7d2baed4b4	221	*
chris	0:3e7d2baed4b4	222	**************************************************************************************************************
chris	0:3e7d2baed4b4	223	*/
chris	0:3e7d2baed4b4	224
chris	0:3e7d2baed4b4	225	USB_INT32S MS_TestUnitReady (void)
chris	0:3e7d2baed4b4	226	{
chris	0:3e7d2baed4b4	227	USB_INT32S rc;
chris	0:3e7d2baed4b4	228
chris	0:3e7d2baed4b4	229
chris	0:3e7d2baed4b4	230	Fill_MSCommand(0, 0, 0, MS_DATA_DIR_NONE, SCSI_CMD_TEST_UNIT_READY, 6);
chris	0:3e7d2baed4b4	231	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
chris	0:3e7d2baed4b4	232	if (rc == OK) {
chris	0:3e7d2baed4b4	233	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
chris	0:3e7d2baed4b4	234	if (rc == OK) {
chris	0:3e7d2baed4b4	235	if (TDBuffer[12] != 0) {
chris	0:3e7d2baed4b4	236	rc = ERR_MS_CMD_FAILED;
chris	0:3e7d2baed4b4	237	}
chris	0:3e7d2baed4b4	238	}
chris	0:3e7d2baed4b4	239	}
chris	0:3e7d2baed4b4	240	return (rc);
chris	0:3e7d2baed4b4	241	}
chris	0:3e7d2baed4b4	242
chris	0:3e7d2baed4b4	243	/*
chris	0:3e7d2baed4b4	244	**************************************************************************************************************
chris	0:3e7d2baed4b4	245	* READ CAPACITY
chris	0:3e7d2baed4b4	246	*
chris	0:3e7d2baed4b4	247	* Description: This function is used to read the capacity of the mass storage device
chris	0:3e7d2baed4b4	248	*
chris	0:3e7d2baed4b4	249	* Arguments : None
chris	0:3e7d2baed4b4	250	*
chris	0:3e7d2baed4b4	251	* Returns : OK if Success
chris	0:3e7d2baed4b4	252	* ERROR if Failed
chris	0:3e7d2baed4b4	253	*
chris	0:3e7d2baed4b4	254	**************************************************************************************************************
chris	0:3e7d2baed4b4	255	*/
chris	0:3e7d2baed4b4	256
chris	0:3e7d2baed4b4	257	USB_INT32S MS_ReadCapacity (USB_INT32U numBlks, USB_INT32U blkSize)
chris	0:3e7d2baed4b4	258	{
chris	0:3e7d2baed4b4	259	USB_INT32S rc;
chris	0:3e7d2baed4b4	260
chris	0:3e7d2baed4b4	261
chris	0:3e7d2baed4b4	262	Fill_MSCommand(0, 0, 0, MS_DATA_DIR_IN, SCSI_CMD_READ_CAPACITY, 10);
chris	0:3e7d2baed4b4	263	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
chris	0:3e7d2baed4b4	264	if (rc == OK) {
chris	0:3e7d2baed4b4	265	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, 8);
chris	0:3e7d2baed4b4	266	if (rc == OK) {
chris	0:3e7d2baed4b4	267	if (numBlks)
chris	0:3e7d2baed4b4	268	*numBlks = ReadBE32U(&TDBuffer[0]);
chris	0:3e7d2baed4b4	269	if (blkSize)
chris	0:3e7d2baed4b4	270	*blkSize = ReadBE32U(&TDBuffer[4]);
chris	0:3e7d2baed4b4	271	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
chris	0:3e7d2baed4b4	272	if (rc == OK) {
chris	0:3e7d2baed4b4	273	if (TDBuffer[12] != 0) {
chris	0:3e7d2baed4b4	274	rc = ERR_MS_CMD_FAILED;
chris	0:3e7d2baed4b4	275	}
chris	0:3e7d2baed4b4	276	}
chris	0:3e7d2baed4b4	277	}
chris	0:3e7d2baed4b4	278	}
chris	0:3e7d2baed4b4	279	return (rc);
chris	0:3e7d2baed4b4	280	}
chris	0:3e7d2baed4b4	281
chris	0:3e7d2baed4b4	282
chris	0:3e7d2baed4b4	283
chris	0:3e7d2baed4b4	284	USB_INT32S MS_Inquire (USB_INT08U *response)
chris	0:3e7d2baed4b4	285	{
chris	0:3e7d2baed4b4	286	USB_INT32S rc;
chris	0:3e7d2baed4b4	287	USB_INT32U i;
chris	0:3e7d2baed4b4	288
chris	0:3e7d2baed4b4	289	Fill_MSCommand(0, 0, 0, MS_DATA_DIR_IN, SCSI_CMD_INQUIRY, 6);
chris	0:3e7d2baed4b4	290	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
chris	0:3e7d2baed4b4	291	if (rc == OK) {
chris	0:3e7d2baed4b4	292	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, INQUIRY_LENGTH);
chris	0:3e7d2baed4b4	293	if (rc == OK) {
chris	0:3e7d2baed4b4	294	if (response) {
chris	0:3e7d2baed4b4	295	for ( i = 0; i < INQUIRY_LENGTH; i++ )
chris	0:3e7d2baed4b4	296	response++ = TDBuffer++;
chris	0:3e7d2baed4b4	297	#if 0
chris	0:3e7d2baed4b4	298	MemCpy (response, TDBuffer, INQUIRY_LENGTH);
chris	0:3e7d2baed4b4	299	StrNullTrailingSpace (response->vendorID, SCSI_INQUIRY_VENDORCHARS);
chris	0:3e7d2baed4b4	300	StrNullTrailingSpace (response->productID, SCSI_INQUIRY_PRODUCTCHARS);
chris	0:3e7d2baed4b4	301	StrNullTrailingSpace (response->productRev, SCSI_INQUIRY_REVCHARS);
chris	0:3e7d2baed4b4	302	#endif
chris	0:3e7d2baed4b4	303	}
chris	0:3e7d2baed4b4	304	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
chris	0:3e7d2baed4b4	305	if (rc == OK) {
chris	0:3e7d2baed4b4	306	if (TDBuffer[12] != 0) { // bCSWStatus byte
chris	0:3e7d2baed4b4	307	rc = ERR_MS_CMD_FAILED;
chris	0:3e7d2baed4b4	308	}
chris	0:3e7d2baed4b4	309	}
chris	0:3e7d2baed4b4	310	}
chris	0:3e7d2baed4b4	311	}
chris	0:3e7d2baed4b4	312	return (rc);
chris	0:3e7d2baed4b4	313	}
chris	0:3e7d2baed4b4	314
chris	0:3e7d2baed4b4	315	/*
chris	0:3e7d2baed4b4	316	**************************************************************************************************************
chris	0:3e7d2baed4b4	317	* RECEIVE THE BULK DATA
chris	0:3e7d2baed4b4	318	*
chris	0:3e7d2baed4b4	319	* Description: This function is used to receive the bulk data
chris	0:3e7d2baed4b4	320	*
chris	0:3e7d2baed4b4	321	* Arguments : None
chris	0:3e7d2baed4b4	322	*
chris	0:3e7d2baed4b4	323	* Returns : OK if Success
chris	0:3e7d2baed4b4	324	* ERR_INVALID_BOOTSIG if Failed
chris	0:3e7d2baed4b4	325	*
chris	0:3e7d2baed4b4	326	**************************************************************************************************************
chris	0:3e7d2baed4b4	327	*/
chris	0:3e7d2baed4b4	328
chris	0:3e7d2baed4b4	329	USB_INT32S MS_BulkRecv ( USB_INT32U block_number,
chris	0:3e7d2baed4b4	330	USB_INT16U num_blocks,
chris	0:3e7d2baed4b4	331	volatile USB_INT08U *user_buffer)
chris	0:3e7d2baed4b4	332	{
chris	0:3e7d2baed4b4	333	USB_INT32S rc;
chris	0:3e7d2baed4b4	334	int i;
chris	0:3e7d2baed4b4	335	volatile USB_INT08U *c = user_buffer;
chris	0:3e7d2baed4b4	336	for (i=0;i<MS_BlkSize*num_blocks;i++)
chris	0:3e7d2baed4b4	337	*c++ = 0;
chris	0:3e7d2baed4b4	338
chris	0:3e7d2baed4b4	339
chris	0:3e7d2baed4b4	340	Fill_MSCommand(block_number, MS_BlkSize, num_blocks, MS_DATA_DIR_IN, SCSI_CMD_READ_10, 10);
chris	0:3e7d2baed4b4	341
chris	0:3e7d2baed4b4	342	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
chris	0:3e7d2baed4b4	343	if (rc == OK) {
chris	0:3e7d2baed4b4	344	rc = Host_ProcessTD(EDBulkIn, TD_IN, user_buffer, MS_BlkSize * num_blocks);
chris	0:3e7d2baed4b4	345	if (rc == OK) {
chris	0:3e7d2baed4b4	346	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
chris	0:3e7d2baed4b4	347	if (rc == OK) {
chris	0:3e7d2baed4b4	348	if (TDBuffer[12] != 0) {
chris	0:3e7d2baed4b4	349	rc = ERR_MS_CMD_FAILED;
chris	0:3e7d2baed4b4	350	}
chris	0:3e7d2baed4b4	351	}
chris	0:3e7d2baed4b4	352	}
chris	0:3e7d2baed4b4	353	}
chris	0:3e7d2baed4b4	354	return (rc);
chris	0:3e7d2baed4b4	355	}
chris	0:3e7d2baed4b4	356
chris	0:3e7d2baed4b4	357	/*
chris	0:3e7d2baed4b4	358	**************************************************************************************************************
chris	0:3e7d2baed4b4	359	* SEND BULK DATA
chris	0:3e7d2baed4b4	360	*
chris	0:3e7d2baed4b4	361	* Description: This function is used to send the bulk data
chris	0:3e7d2baed4b4	362	*
chris	0:3e7d2baed4b4	363	* Arguments : None
chris	0:3e7d2baed4b4	364	*
chris	0:3e7d2baed4b4	365	* Returns : OK if Success
chris	0:3e7d2baed4b4	366	* ERR_INVALID_BOOTSIG if Failed
chris	0:3e7d2baed4b4	367	*
chris	0:3e7d2baed4b4	368	**************************************************************************************************************
chris	0:3e7d2baed4b4	369	*/
chris	0:3e7d2baed4b4	370
chris	0:3e7d2baed4b4	371	USB_INT32S MS_BulkSend ( USB_INT32U block_number,
chris	0:3e7d2baed4b4	372	USB_INT16U num_blocks,
chris	0:3e7d2baed4b4	373	volatile USB_INT08U *user_buffer)
chris	0:3e7d2baed4b4	374	{
chris	0:3e7d2baed4b4	375	USB_INT32S rc;
chris	0:3e7d2baed4b4	376
chris	0:3e7d2baed4b4	377
chris	0:3e7d2baed4b4	378	Fill_MSCommand(block_number, MS_BlkSize, num_blocks, MS_DATA_DIR_OUT, SCSI_CMD_WRITE_10, 10);
chris	0:3e7d2baed4b4	379
chris	0:3e7d2baed4b4	380	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
chris	0:3e7d2baed4b4	381	if (rc == OK) {
chris	0:3e7d2baed4b4	382	rc = Host_ProcessTD(EDBulkOut, TD_OUT, user_buffer, MS_BlkSize * num_blocks);
chris	0:3e7d2baed4b4	383	if (rc == OK) {
chris	0:3e7d2baed4b4	384	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
chris	0:3e7d2baed4b4	385	if (rc == OK) {
chris	0:3e7d2baed4b4	386	if (TDBuffer[12] != 0) {
chris	0:3e7d2baed4b4	387	rc = ERR_MS_CMD_FAILED;
chris	0:3e7d2baed4b4	388	}
chris	0:3e7d2baed4b4	389	}
chris	0:3e7d2baed4b4	390	}
chris	0:3e7d2baed4b4	391	}
chris	0:3e7d2baed4b4	392	return (rc);
chris	0:3e7d2baed4b4	393	}
chris	0:3e7d2baed4b4	394
chris	0:3e7d2baed4b4	395	/*
chris	0:3e7d2baed4b4	396	**************************************************************************************************************
chris	0:3e7d2baed4b4	397	* FILL MASS STORAGE COMMAND
chris	0:3e7d2baed4b4	398	*
chris	0:3e7d2baed4b4	399	* Description: This function is used to fill the mass storage command
chris	0:3e7d2baed4b4	400	*
chris	0:3e7d2baed4b4	401	* Arguments : None
chris	0:3e7d2baed4b4	402	*
chris	0:3e7d2baed4b4	403	* Returns : OK if Success
chris	0:3e7d2baed4b4	404	* ERR_INVALID_BOOTSIG if Failed
chris	0:3e7d2baed4b4	405	*
chris	0:3e7d2baed4b4	406	**************************************************************************************************************
chris	0:3e7d2baed4b4	407	*/
chris	0:3e7d2baed4b4	408
chris	0:3e7d2baed4b4	409	void Fill_MSCommand (USB_INT32U block_number,
chris	0:3e7d2baed4b4	410	USB_INT32U block_size,
chris	0:3e7d2baed4b4	411	USB_INT16U num_blocks,
chris	0:3e7d2baed4b4	412	MS_DATA_DIR direction,
chris	0:3e7d2baed4b4	413	USB_INT08U scsi_cmd,
chris	0:3e7d2baed4b4	414	USB_INT08U scsi_cmd_len)
chris	0:3e7d2baed4b4	415	{
chris	0:3e7d2baed4b4	416	USB_INT32U data_len;
chris	0:3e7d2baed4b4	417	static USB_INT32U tag_cnt = 0;
chris	0:3e7d2baed4b4	418	USB_INT32U cnt;
chris	0:3e7d2baed4b4	419
chris	0:3e7d2baed4b4	420
chris	0:3e7d2baed4b4	421	for (cnt = 0; cnt < CBW_SIZE; cnt++) {
chris	0:3e7d2baed4b4	422	TDBuffer[cnt] = 0;
chris	0:3e7d2baed4b4	423	}
chris	0:3e7d2baed4b4	424	switch(scsi_cmd) {
chris	0:3e7d2baed4b4	425
chris	0:3e7d2baed4b4	426	case SCSI_CMD_TEST_UNIT_READY:
chris	0:3e7d2baed4b4	427	data_len = 0;
chris	0:3e7d2baed4b4	428	break;
chris	0:3e7d2baed4b4	429	case SCSI_CMD_READ_CAPACITY:
chris	0:3e7d2baed4b4	430	data_len = 8;
chris	0:3e7d2baed4b4	431	break;
chris	0:3e7d2baed4b4	432	case SCSI_CMD_REQUEST_SENSE:
chris	0:3e7d2baed4b4	433	data_len = 18;
chris	0:3e7d2baed4b4	434	break;
chris	0:3e7d2baed4b4	435	case SCSI_CMD_INQUIRY:
chris	0:3e7d2baed4b4	436	data_len = 36;
chris	0:3e7d2baed4b4	437	break;
chris	0:3e7d2baed4b4	438	default:
chris	0:3e7d2baed4b4	439	data_len = block_size * num_blocks;
chris	0:3e7d2baed4b4	440	break;
chris	0:3e7d2baed4b4	441	}
chris	0:3e7d2baed4b4	442	WriteLE32U(TDBuffer, CBW_SIGNATURE);
chris	0:3e7d2baed4b4	443	WriteLE32U(&TDBuffer[4], tag_cnt);
chris	0:3e7d2baed4b4	444	WriteLE32U(&TDBuffer[8], data_len);
chris	0:3e7d2baed4b4	445	TDBuffer[12] = (direction == MS_DATA_DIR_NONE) ? 0 : direction;
chris	0:3e7d2baed4b4	446	TDBuffer[14] = scsi_cmd_len; /* Length of the CBW */
chris	0:3e7d2baed4b4	447	TDBuffer[15] = scsi_cmd;
chris	0:3e7d2baed4b4	448	if ((scsi_cmd == SCSI_CMD_REQUEST_SENSE)
chris	0:3e7d2baed4b4	449	\|\| (scsi_cmd == SCSI_CMD_INQUIRY)) {
chris	0:3e7d2baed4b4	450	TDBuffer[19] = (USB_INT08U)data_len;
chris	0:3e7d2baed4b4	451	} else {
chris	0:3e7d2baed4b4	452	WriteBE32U(&TDBuffer[17], block_number);
chris	0:3e7d2baed4b4	453	}
chris	0:3e7d2baed4b4	454	WriteBE16U(&TDBuffer[22], num_blocks);
chris	0:3e7d2baed4b4	455	}

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Type:	Library
Created:	03 Apr 2014
Imports:	14
Forks:	0
Commits:	9
Dependents:	0
Dependencies:	0
Followers:	1

USBHostLite/usbhost_ms.c@0:3e7d2baed4b4, 2011-04-05 (annotated)

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