USBHostLite_Sherckuith -

Users » apm_litoral » Code » USBHostLite_Sherckuith

Angel David Yaguana Hernandez / USBHostLite_Sherckuith

usbhost_ms.c@0:78a36db66fbb, 2012-04-10 (annotated)

Committer:: apm_litoral
Date:: Tue Apr 10 03:34:23 2012 +0000
Revision:: 0:78a36db66fbb

Who changed what in which revision?

User	Revision	Line number	New contents of line
apm_litoral	0:78a36db66fbb	1	/*
apm_litoral	0:78a36db66fbb	2	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	3	* NXP USB Host Stack
apm_litoral	0:78a36db66fbb	4	*
apm_litoral	0:78a36db66fbb	5	* (c) Copyright 2008, NXP SemiConductors
apm_litoral	0:78a36db66fbb	6	* (c) Copyright 2008, OnChip Technologies LLC
apm_litoral	0:78a36db66fbb	7	* All Rights Reserved
apm_litoral	0:78a36db66fbb	8	*
apm_litoral	0:78a36db66fbb	9	* www.nxp.com
apm_litoral	0:78a36db66fbb	10	* www.onchiptech.com
apm_litoral	0:78a36db66fbb	11	*
apm_litoral	0:78a36db66fbb	12	* File : usbhost_ms.c
apm_litoral	0:78a36db66fbb	13	* Programmer(s) : Ravikanth.P
apm_litoral	0:78a36db66fbb	14	* Version :
apm_litoral	0:78a36db66fbb	15	*
apm_litoral	0:78a36db66fbb	16	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	17	*/
apm_litoral	0:78a36db66fbb	18
apm_litoral	0:78a36db66fbb	19	/*
apm_litoral	0:78a36db66fbb	20	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	21	* INCLUDE HEADER FILES
apm_litoral	0:78a36db66fbb	22	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	23	*/
apm_litoral	0:78a36db66fbb	24
apm_litoral	0:78a36db66fbb	25	#include "usbhost_ms.h"
apm_litoral	0:78a36db66fbb	26
apm_litoral	0:78a36db66fbb	27	/*
apm_litoral	0:78a36db66fbb	28	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	29	* GLOBAL VARIABLES
apm_litoral	0:78a36db66fbb	30	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	31	*/
apm_litoral	0:78a36db66fbb	32
apm_litoral	0:78a36db66fbb	33	USB_INT32U MS_BlkSize;
apm_litoral	0:78a36db66fbb	34
apm_litoral	0:78a36db66fbb	35	/*
apm_litoral	0:78a36db66fbb	36	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	37	* INITIALIZE MASS STORAGE INTERFACE
apm_litoral	0:78a36db66fbb	38	*
apm_litoral	0:78a36db66fbb	39	* Description: This function initializes the mass storage interface
apm_litoral	0:78a36db66fbb	40	*
apm_litoral	0:78a36db66fbb	41	* Arguments : None
apm_litoral	0:78a36db66fbb	42	*
apm_litoral	0:78a36db66fbb	43	* Returns : OK if Success
apm_litoral	0:78a36db66fbb	44	* ERR_INVALID_BOOTSIG if Failed
apm_litoral	0:78a36db66fbb	45	*
apm_litoral	0:78a36db66fbb	46	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	47	*/
apm_litoral	0:78a36db66fbb	48
apm_litoral	0:78a36db66fbb	49	USB_INT32S MS_Init (USB_INT32U blkSize, USB_INT32U numBlks, USB_INT08U *inquiryResult)
apm_litoral	0:78a36db66fbb	50	{
apm_litoral	0:78a36db66fbb	51	USB_INT08U retry;
apm_litoral	0:78a36db66fbb	52	USB_INT32S rc;
apm_litoral	0:78a36db66fbb	53
apm_litoral	0:78a36db66fbb	54	MS_GetMaxLUN(); /* Get maximum logical unit number */
apm_litoral	0:78a36db66fbb	55	retry = 80;
apm_litoral	0:78a36db66fbb	56	while(retry) {
apm_litoral	0:78a36db66fbb	57	rc = MS_TestUnitReady(); /* Test whether the unit is ready */
apm_litoral	0:78a36db66fbb	58	if (rc == OK) {
apm_litoral	0:78a36db66fbb	59	break;
apm_litoral	0:78a36db66fbb	60	}
apm_litoral	0:78a36db66fbb	61	MS_GetSenseInfo(); /* Get sense information */
apm_litoral	0:78a36db66fbb	62	retry--;
apm_litoral	0:78a36db66fbb	63	}
apm_litoral	0:78a36db66fbb	64	if (rc != OK) {
apm_litoral	0:78a36db66fbb	65	PRINT_Err(rc);
apm_litoral	0:78a36db66fbb	66	return (rc);
apm_litoral	0:78a36db66fbb	67	}
apm_litoral	0:78a36db66fbb	68	rc = MS_ReadCapacity(numBlks, blkSize); /* Read capacity of the disk */
apm_litoral	0:78a36db66fbb	69	MS_BlkSize = *blkSize; // Set global
apm_litoral	0:78a36db66fbb	70	rc = MS_Inquire (inquiryResult);
apm_litoral	0:78a36db66fbb	71	return (rc);
apm_litoral	0:78a36db66fbb	72	}
apm_litoral	0:78a36db66fbb	73	/*
apm_litoral	0:78a36db66fbb	74	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	75	* PARSE THE CONFIGURATION
apm_litoral	0:78a36db66fbb	76	*
apm_litoral	0:78a36db66fbb	77	* Description: This function is used to parse the configuration
apm_litoral	0:78a36db66fbb	78	*
apm_litoral	0:78a36db66fbb	79	* Arguments : None
apm_litoral	0:78a36db66fbb	80	*
apm_litoral	0:78a36db66fbb	81	* Returns : OK if Success
apm_litoral	0:78a36db66fbb	82	* ERR_INVALID_BOOTSIG if Failed
apm_litoral	0:78a36db66fbb	83	*
apm_litoral	0:78a36db66fbb	84	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	85	*/
apm_litoral	0:78a36db66fbb	86
apm_litoral	0:78a36db66fbb	87	USB_INT32S MS_ParseConfiguration (void)
apm_litoral	0:78a36db66fbb	88	{
apm_litoral	0:78a36db66fbb	89	volatile USB_INT08U *desc_ptr;
apm_litoral	0:78a36db66fbb	90	USB_INT08U ms_int_found;
apm_litoral	0:78a36db66fbb	91
apm_litoral	0:78a36db66fbb	92
apm_litoral	0:78a36db66fbb	93	desc_ptr = TDBuffer;
apm_litoral	0:78a36db66fbb	94	ms_int_found = 0;
apm_litoral	0:78a36db66fbb	95
apm_litoral	0:78a36db66fbb	96	if (desc_ptr[1] != USB_DESCRIPTOR_TYPE_CONFIGURATION) {
apm_litoral	0:78a36db66fbb	97	return (ERR_BAD_CONFIGURATION);
apm_litoral	0:78a36db66fbb	98	}
apm_litoral	0:78a36db66fbb	99	desc_ptr += desc_ptr[0];
apm_litoral	0:78a36db66fbb	100
apm_litoral	0:78a36db66fbb	101	while (desc_ptr != TDBuffer + ReadLE16U(&TDBuffer[2])) {
apm_litoral	0:78a36db66fbb	102
apm_litoral	0:78a36db66fbb	103	switch (desc_ptr[1]) {
apm_litoral	0:78a36db66fbb	104
apm_litoral	0:78a36db66fbb	105	case USB_DESCRIPTOR_TYPE_INTERFACE: /* If it is an interface descriptor */
apm_litoral	0:78a36db66fbb	106	if (desc_ptr[5] == MASS_STORAGE_CLASS && /* check if the class is mass storage */
apm_litoral	0:78a36db66fbb	107	desc_ptr[6] == MASS_STORAGE_SUBCLASS_SCSI && /* check if the subclass is SCSI */
apm_litoral	0:78a36db66fbb	108	desc_ptr[7] == MASS_STORAGE_PROTOCOL_BO) { /* check if the protocol is Bulk only */
apm_litoral	0:78a36db66fbb	109	ms_int_found = 1;
apm_litoral	0:78a36db66fbb	110	desc_ptr += desc_ptr[0]; /* Move to next descriptor start */
apm_litoral	0:78a36db66fbb	111	}
apm_litoral	0:78a36db66fbb	112	break;
apm_litoral	0:78a36db66fbb	113
apm_litoral	0:78a36db66fbb	114	case USB_DESCRIPTOR_TYPE_ENDPOINT: /* If it is an endpoint descriptor */
apm_litoral	0:78a36db66fbb	115	if ((desc_ptr[3] & 0x03) == 0x02) { /* If it is Bulk endpoint */
apm_litoral	0:78a36db66fbb	116	if (desc_ptr[2] & 0x80) { /* If it is In endpoint */
apm_litoral	0:78a36db66fbb	117	EDBulkIn->Control = 1 \| /* USB address */
apm_litoral	0:78a36db66fbb	118	((desc_ptr[2] & 0x7F) << 7) \| /* Endpoint address */
apm_litoral	0:78a36db66fbb	119	(2 << 11) \| /* direction */
apm_litoral	0:78a36db66fbb	120	(ReadLE16U(&desc_ptr[4]) << 16); /* MaxPkt Size */
apm_litoral	0:78a36db66fbb	121	desc_ptr += desc_ptr[0]; /* Move to next descriptor start */
apm_litoral	0:78a36db66fbb	122	} else { /* If it is Out endpoint */
apm_litoral	0:78a36db66fbb	123	EDBulkOut->Control = 1 \| /* USB address */
apm_litoral	0:78a36db66fbb	124	((desc_ptr[2] & 0x7F) << 7) \| /* Endpoint address */
apm_litoral	0:78a36db66fbb	125	(1 << 11) \| /* direction */
apm_litoral	0:78a36db66fbb	126	(ReadLE16U(&desc_ptr[4]) << 16); /* MaxPkt Size */
apm_litoral	0:78a36db66fbb	127	desc_ptr += desc_ptr[0]; /* Move to next descriptor start */
apm_litoral	0:78a36db66fbb	128	}
apm_litoral	0:78a36db66fbb	129	} else { /* If it is not bulk end point */
apm_litoral	0:78a36db66fbb	130	desc_ptr += desc_ptr[0]; /* Move to next descriptor start */
apm_litoral	0:78a36db66fbb	131	}
apm_litoral	0:78a36db66fbb	132	break;
apm_litoral	0:78a36db66fbb	133
apm_litoral	0:78a36db66fbb	134	default: /* If the descriptor is neither interface nor endpoint */
apm_litoral	0:78a36db66fbb	135	desc_ptr += desc_ptr[0]; /* Move to next descriptor start */
apm_litoral	0:78a36db66fbb	136	break;
apm_litoral	0:78a36db66fbb	137	}
apm_litoral	0:78a36db66fbb	138	}
apm_litoral	0:78a36db66fbb	139	if (ms_int_found) {
apm_litoral	0:78a36db66fbb	140	//PRINT_Log("Mass Storage device connected\n");
apm_litoral	0:78a36db66fbb	141	return (OK);
apm_litoral	0:78a36db66fbb	142	} else {
apm_litoral	0:78a36db66fbb	143	PRINT_Log("Not a Mass Storage device\n");
apm_litoral	0:78a36db66fbb	144	return (ERR_NO_MS_INTERFACE);
apm_litoral	0:78a36db66fbb	145	}
apm_litoral	0:78a36db66fbb	146	}
apm_litoral	0:78a36db66fbb	147
apm_litoral	0:78a36db66fbb	148	/*
apm_litoral	0:78a36db66fbb	149	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	150	* GET MAXIMUM LOGICAL UNIT
apm_litoral	0:78a36db66fbb	151	*
apm_litoral	0:78a36db66fbb	152	* Description: This function returns the maximum logical unit from the device
apm_litoral	0:78a36db66fbb	153	*
apm_litoral	0:78a36db66fbb	154	* Arguments : None
apm_litoral	0:78a36db66fbb	155	*
apm_litoral	0:78a36db66fbb	156	* Returns : OK if Success
apm_litoral	0:78a36db66fbb	157	* ERR_INVALID_BOOTSIG if Failed
apm_litoral	0:78a36db66fbb	158	*
apm_litoral	0:78a36db66fbb	159	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	160	*/
apm_litoral	0:78a36db66fbb	161
apm_litoral	0:78a36db66fbb	162	USB_INT32S MS_GetMaxLUN (void)
apm_litoral	0:78a36db66fbb	163	{
apm_litoral	0:78a36db66fbb	164	USB_INT32S rc;
apm_litoral	0:78a36db66fbb	165
apm_litoral	0:78a36db66fbb	166
apm_litoral	0:78a36db66fbb	167	rc = Host_CtrlRecv(USB_DEVICE_TO_HOST \| USB_REQUEST_TYPE_CLASS \| USB_RECIPIENT_INTERFACE,
apm_litoral	0:78a36db66fbb	168	MS_GET_MAX_LUN_REQ,
apm_litoral	0:78a36db66fbb	169	0,
apm_litoral	0:78a36db66fbb	170	0,
apm_litoral	0:78a36db66fbb	171	1,
apm_litoral	0:78a36db66fbb	172	TDBuffer);
apm_litoral	0:78a36db66fbb	173	return (rc);
apm_litoral	0:78a36db66fbb	174	}
apm_litoral	0:78a36db66fbb	175
apm_litoral	0:78a36db66fbb	176	/*
apm_litoral	0:78a36db66fbb	177	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	178	* GET SENSE INFORMATION
apm_litoral	0:78a36db66fbb	179	*
apm_litoral	0:78a36db66fbb	180	* Description: This function is used to get sense information from the device
apm_litoral	0:78a36db66fbb	181	*
apm_litoral	0:78a36db66fbb	182	* Arguments : None
apm_litoral	0:78a36db66fbb	183	*
apm_litoral	0:78a36db66fbb	184	* Returns : OK if Success
apm_litoral	0:78a36db66fbb	185	* ERROR if Failed
apm_litoral	0:78a36db66fbb	186	*
apm_litoral	0:78a36db66fbb	187	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	188	*/
apm_litoral	0:78a36db66fbb	189
apm_litoral	0:78a36db66fbb	190	USB_INT32S MS_GetSenseInfo (void)
apm_litoral	0:78a36db66fbb	191	{
apm_litoral	0:78a36db66fbb	192	USB_INT32S rc;
apm_litoral	0:78a36db66fbb	193
apm_litoral	0:78a36db66fbb	194
apm_litoral	0:78a36db66fbb	195	Fill_MSCommand(0, 0, 0, MS_DATA_DIR_IN, SCSI_CMD_REQUEST_SENSE, 6);
apm_litoral	0:78a36db66fbb	196	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
apm_litoral	0:78a36db66fbb	197	if (rc == OK) {
apm_litoral	0:78a36db66fbb	198	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, 18);
apm_litoral	0:78a36db66fbb	199	if (rc == OK) {
apm_litoral	0:78a36db66fbb	200	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
apm_litoral	0:78a36db66fbb	201	if (rc == OK) {
apm_litoral	0:78a36db66fbb	202	if (TDBuffer[12] != 0) {
apm_litoral	0:78a36db66fbb	203	rc = ERR_MS_CMD_FAILED;
apm_litoral	0:78a36db66fbb	204	}
apm_litoral	0:78a36db66fbb	205	}
apm_litoral	0:78a36db66fbb	206	}
apm_litoral	0:78a36db66fbb	207	}
apm_litoral	0:78a36db66fbb	208	return (rc);
apm_litoral	0:78a36db66fbb	209	}
apm_litoral	0:78a36db66fbb	210
apm_litoral	0:78a36db66fbb	211	/*
apm_litoral	0:78a36db66fbb	212	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	213	* TEST UNIT READY
apm_litoral	0:78a36db66fbb	214	*
apm_litoral	0:78a36db66fbb	215	* Description: This function is used to test whether the unit is ready or not
apm_litoral	0:78a36db66fbb	216	*
apm_litoral	0:78a36db66fbb	217	* Arguments : None
apm_litoral	0:78a36db66fbb	218	*
apm_litoral	0:78a36db66fbb	219	* Returns : OK if Success
apm_litoral	0:78a36db66fbb	220	* ERROR if Failed
apm_litoral	0:78a36db66fbb	221	*
apm_litoral	0:78a36db66fbb	222	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	223	*/
apm_litoral	0:78a36db66fbb	224
apm_litoral	0:78a36db66fbb	225	USB_INT32S MS_TestUnitReady (void)
apm_litoral	0:78a36db66fbb	226	{
apm_litoral	0:78a36db66fbb	227	USB_INT32S rc;
apm_litoral	0:78a36db66fbb	228
apm_litoral	0:78a36db66fbb	229
apm_litoral	0:78a36db66fbb	230	Fill_MSCommand(0, 0, 0, MS_DATA_DIR_NONE, SCSI_CMD_TEST_UNIT_READY, 6);
apm_litoral	0:78a36db66fbb	231	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
apm_litoral	0:78a36db66fbb	232	if (rc == OK) {
apm_litoral	0:78a36db66fbb	233	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
apm_litoral	0:78a36db66fbb	234	if (rc == OK) {
apm_litoral	0:78a36db66fbb	235	if (TDBuffer[12] != 0) {
apm_litoral	0:78a36db66fbb	236	rc = ERR_MS_CMD_FAILED;
apm_litoral	0:78a36db66fbb	237	}
apm_litoral	0:78a36db66fbb	238	}
apm_litoral	0:78a36db66fbb	239	}
apm_litoral	0:78a36db66fbb	240	return (rc);
apm_litoral	0:78a36db66fbb	241	}
apm_litoral	0:78a36db66fbb	242
apm_litoral	0:78a36db66fbb	243	/*
apm_litoral	0:78a36db66fbb	244	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	245	* READ CAPACITY
apm_litoral	0:78a36db66fbb	246	*
apm_litoral	0:78a36db66fbb	247	* Description: This function is used to read the capacity of the mass storage device
apm_litoral	0:78a36db66fbb	248	*
apm_litoral	0:78a36db66fbb	249	* Arguments : None
apm_litoral	0:78a36db66fbb	250	*
apm_litoral	0:78a36db66fbb	251	* Returns : OK if Success
apm_litoral	0:78a36db66fbb	252	* ERROR if Failed
apm_litoral	0:78a36db66fbb	253	*
apm_litoral	0:78a36db66fbb	254	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	255	*/
apm_litoral	0:78a36db66fbb	256
apm_litoral	0:78a36db66fbb	257	USB_INT32S MS_ReadCapacity (USB_INT32U numBlks, USB_INT32U blkSize)
apm_litoral	0:78a36db66fbb	258	{
apm_litoral	0:78a36db66fbb	259	USB_INT32S rc;
apm_litoral	0:78a36db66fbb	260
apm_litoral	0:78a36db66fbb	261
apm_litoral	0:78a36db66fbb	262	Fill_MSCommand(0, 0, 0, MS_DATA_DIR_IN, SCSI_CMD_READ_CAPACITY, 10);
apm_litoral	0:78a36db66fbb	263	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
apm_litoral	0:78a36db66fbb	264	if (rc == OK) {
apm_litoral	0:78a36db66fbb	265	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, 8);
apm_litoral	0:78a36db66fbb	266	if (rc == OK) {
apm_litoral	0:78a36db66fbb	267	if (numBlks)
apm_litoral	0:78a36db66fbb	268	*numBlks = ReadBE32U(&TDBuffer[0]);
apm_litoral	0:78a36db66fbb	269	if (blkSize)
apm_litoral	0:78a36db66fbb	270	*blkSize = ReadBE32U(&TDBuffer[4]);
apm_litoral	0:78a36db66fbb	271	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
apm_litoral	0:78a36db66fbb	272	if (rc == OK) {
apm_litoral	0:78a36db66fbb	273	if (TDBuffer[12] != 0) {
apm_litoral	0:78a36db66fbb	274	rc = ERR_MS_CMD_FAILED;
apm_litoral	0:78a36db66fbb	275	}
apm_litoral	0:78a36db66fbb	276	}
apm_litoral	0:78a36db66fbb	277	}
apm_litoral	0:78a36db66fbb	278	}
apm_litoral	0:78a36db66fbb	279	return (rc);
apm_litoral	0:78a36db66fbb	280	}
apm_litoral	0:78a36db66fbb	281
apm_litoral	0:78a36db66fbb	282
apm_litoral	0:78a36db66fbb	283
apm_litoral	0:78a36db66fbb	284	USB_INT32S MS_Inquire (USB_INT08U *response)
apm_litoral	0:78a36db66fbb	285	{
apm_litoral	0:78a36db66fbb	286	USB_INT32S rc;
apm_litoral	0:78a36db66fbb	287	USB_INT32U i;
apm_litoral	0:78a36db66fbb	288
apm_litoral	0:78a36db66fbb	289	Fill_MSCommand(0, 0, 0, MS_DATA_DIR_IN, SCSI_CMD_INQUIRY, 6);
apm_litoral	0:78a36db66fbb	290	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
apm_litoral	0:78a36db66fbb	291	if (rc == OK) {
apm_litoral	0:78a36db66fbb	292	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, INQUIRY_LENGTH);
apm_litoral	0:78a36db66fbb	293	if (rc == OK) {
apm_litoral	0:78a36db66fbb	294	if (response) {
apm_litoral	0:78a36db66fbb	295	for ( i = 0; i < INQUIRY_LENGTH; i++ )
apm_litoral	0:78a36db66fbb	296	response++ = TDBuffer++;
apm_litoral	0:78a36db66fbb	297	#if 0
apm_litoral	0:78a36db66fbb	298	MemCpy (response, TDBuffer, INQUIRY_LENGTH);
apm_litoral	0:78a36db66fbb	299	StrNullTrailingSpace (response->vendorID, SCSI_INQUIRY_VENDORCHARS);
apm_litoral	0:78a36db66fbb	300	StrNullTrailingSpace (response->productID, SCSI_INQUIRY_PRODUCTCHARS);
apm_litoral	0:78a36db66fbb	301	StrNullTrailingSpace (response->productRev, SCSI_INQUIRY_REVCHARS);
apm_litoral	0:78a36db66fbb	302	#endif
apm_litoral	0:78a36db66fbb	303	}
apm_litoral	0:78a36db66fbb	304	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
apm_litoral	0:78a36db66fbb	305	if (rc == OK) {
apm_litoral	0:78a36db66fbb	306	if (TDBuffer[12] != 0) { // bCSWStatus byte
apm_litoral	0:78a36db66fbb	307	rc = ERR_MS_CMD_FAILED;
apm_litoral	0:78a36db66fbb	308	}
apm_litoral	0:78a36db66fbb	309	}
apm_litoral	0:78a36db66fbb	310	}
apm_litoral	0:78a36db66fbb	311	}
apm_litoral	0:78a36db66fbb	312	return (rc);
apm_litoral	0:78a36db66fbb	313	}
apm_litoral	0:78a36db66fbb	314
apm_litoral	0:78a36db66fbb	315	/*
apm_litoral	0:78a36db66fbb	316	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	317	* RECEIVE THE BULK DATA
apm_litoral	0:78a36db66fbb	318	*
apm_litoral	0:78a36db66fbb	319	* Description: This function is used to receive the bulk data
apm_litoral	0:78a36db66fbb	320	*
apm_litoral	0:78a36db66fbb	321	* Arguments : None
apm_litoral	0:78a36db66fbb	322	*
apm_litoral	0:78a36db66fbb	323	* Returns : OK if Success
apm_litoral	0:78a36db66fbb	324	* ERR_INVALID_BOOTSIG if Failed
apm_litoral	0:78a36db66fbb	325	*
apm_litoral	0:78a36db66fbb	326	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	327	*/
apm_litoral	0:78a36db66fbb	328
apm_litoral	0:78a36db66fbb	329	USB_INT32S MS_BulkRecv ( USB_INT32U block_number,
apm_litoral	0:78a36db66fbb	330	USB_INT16U num_blocks,
apm_litoral	0:78a36db66fbb	331	volatile USB_INT08U *user_buffer)
apm_litoral	0:78a36db66fbb	332	{
apm_litoral	0:78a36db66fbb	333	USB_INT32S rc;
apm_litoral	0:78a36db66fbb	334	int i;
apm_litoral	0:78a36db66fbb	335	volatile USB_INT08U *c = user_buffer;
apm_litoral	0:78a36db66fbb	336	for (i=0;i<MS_BlkSize*num_blocks;i++)
apm_litoral	0:78a36db66fbb	337	*c++ = 0;
apm_litoral	0:78a36db66fbb	338
apm_litoral	0:78a36db66fbb	339
apm_litoral	0:78a36db66fbb	340	Fill_MSCommand(block_number, MS_BlkSize, num_blocks, MS_DATA_DIR_IN, SCSI_CMD_READ_10, 10);
apm_litoral	0:78a36db66fbb	341
apm_litoral	0:78a36db66fbb	342	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
apm_litoral	0:78a36db66fbb	343	if (rc == OK) {
apm_litoral	0:78a36db66fbb	344	rc = Host_ProcessTD(EDBulkIn, TD_IN, user_buffer, MS_BlkSize * num_blocks);
apm_litoral	0:78a36db66fbb	345	if (rc == OK) {
apm_litoral	0:78a36db66fbb	346	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
apm_litoral	0:78a36db66fbb	347	if (rc == OK) {
apm_litoral	0:78a36db66fbb	348	if (TDBuffer[12] != 0) {
apm_litoral	0:78a36db66fbb	349	rc = ERR_MS_CMD_FAILED;
apm_litoral	0:78a36db66fbb	350	}
apm_litoral	0:78a36db66fbb	351	}
apm_litoral	0:78a36db66fbb	352	}
apm_litoral	0:78a36db66fbb	353	}
apm_litoral	0:78a36db66fbb	354	return (rc);
apm_litoral	0:78a36db66fbb	355	}
apm_litoral	0:78a36db66fbb	356
apm_litoral	0:78a36db66fbb	357	/*
apm_litoral	0:78a36db66fbb	358	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	359	* SEND BULK DATA
apm_litoral	0:78a36db66fbb	360	*
apm_litoral	0:78a36db66fbb	361	* Description: This function is used to send the bulk data
apm_litoral	0:78a36db66fbb	362	*
apm_litoral	0:78a36db66fbb	363	* Arguments : None
apm_litoral	0:78a36db66fbb	364	*
apm_litoral	0:78a36db66fbb	365	* Returns : OK if Success
apm_litoral	0:78a36db66fbb	366	* ERR_INVALID_BOOTSIG if Failed
apm_litoral	0:78a36db66fbb	367	*
apm_litoral	0:78a36db66fbb	368	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	369	*/
apm_litoral	0:78a36db66fbb	370
apm_litoral	0:78a36db66fbb	371	USB_INT32S MS_BulkSend ( USB_INT32U block_number,
apm_litoral	0:78a36db66fbb	372	USB_INT16U num_blocks,
apm_litoral	0:78a36db66fbb	373	volatile USB_INT08U *user_buffer)
apm_litoral	0:78a36db66fbb	374	{
apm_litoral	0:78a36db66fbb	375	USB_INT32S rc;
apm_litoral	0:78a36db66fbb	376
apm_litoral	0:78a36db66fbb	377
apm_litoral	0:78a36db66fbb	378	Fill_MSCommand(block_number, MS_BlkSize, num_blocks, MS_DATA_DIR_OUT, SCSI_CMD_WRITE_10, 10);
apm_litoral	0:78a36db66fbb	379
apm_litoral	0:78a36db66fbb	380	rc = Host_ProcessTD(EDBulkOut, TD_OUT, TDBuffer, CBW_SIZE);
apm_litoral	0:78a36db66fbb	381	if (rc == OK) {
apm_litoral	0:78a36db66fbb	382	rc = Host_ProcessTD(EDBulkOut, TD_OUT, user_buffer, MS_BlkSize * num_blocks);
apm_litoral	0:78a36db66fbb	383	if (rc == OK) {
apm_litoral	0:78a36db66fbb	384	rc = Host_ProcessTD(EDBulkIn, TD_IN, TDBuffer, CSW_SIZE);
apm_litoral	0:78a36db66fbb	385	if (rc == OK) {
apm_litoral	0:78a36db66fbb	386	if (TDBuffer[12] != 0) {
apm_litoral	0:78a36db66fbb	387	rc = ERR_MS_CMD_FAILED;
apm_litoral	0:78a36db66fbb	388	}
apm_litoral	0:78a36db66fbb	389	}
apm_litoral	0:78a36db66fbb	390	}
apm_litoral	0:78a36db66fbb	391	}
apm_litoral	0:78a36db66fbb	392	return (rc);
apm_litoral	0:78a36db66fbb	393	}
apm_litoral	0:78a36db66fbb	394
apm_litoral	0:78a36db66fbb	395	/*
apm_litoral	0:78a36db66fbb	396	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	397	* FILL MASS STORAGE COMMAND
apm_litoral	0:78a36db66fbb	398	*
apm_litoral	0:78a36db66fbb	399	* Description: This function is used to fill the mass storage command
apm_litoral	0:78a36db66fbb	400	*
apm_litoral	0:78a36db66fbb	401	* Arguments : None
apm_litoral	0:78a36db66fbb	402	*
apm_litoral	0:78a36db66fbb	403	* Returns : OK if Success
apm_litoral	0:78a36db66fbb	404	* ERR_INVALID_BOOTSIG if Failed
apm_litoral	0:78a36db66fbb	405	*
apm_litoral	0:78a36db66fbb	406	**************************************************************************************************************
apm_litoral	0:78a36db66fbb	407	*/
apm_litoral	0:78a36db66fbb	408
apm_litoral	0:78a36db66fbb	409	void Fill_MSCommand (USB_INT32U block_number,
apm_litoral	0:78a36db66fbb	410	USB_INT32U block_size,
apm_litoral	0:78a36db66fbb	411	USB_INT16U num_blocks,
apm_litoral	0:78a36db66fbb	412	MS_DATA_DIR direction,
apm_litoral	0:78a36db66fbb	413	USB_INT08U scsi_cmd,
apm_litoral	0:78a36db66fbb	414	USB_INT08U scsi_cmd_len)
apm_litoral	0:78a36db66fbb	415	{
apm_litoral	0:78a36db66fbb	416	USB_INT32U data_len;
apm_litoral	0:78a36db66fbb	417	static USB_INT32U tag_cnt = 0;
apm_litoral	0:78a36db66fbb	418	USB_INT32U cnt;
apm_litoral	0:78a36db66fbb	419
apm_litoral	0:78a36db66fbb	420
apm_litoral	0:78a36db66fbb	421	for (cnt = 0; cnt < CBW_SIZE; cnt++) {
apm_litoral	0:78a36db66fbb	422	TDBuffer[cnt] = 0;
apm_litoral	0:78a36db66fbb	423	}
apm_litoral	0:78a36db66fbb	424	switch(scsi_cmd) {
apm_litoral	0:78a36db66fbb	425
apm_litoral	0:78a36db66fbb	426	case SCSI_CMD_TEST_UNIT_READY:
apm_litoral	0:78a36db66fbb	427	data_len = 0;
apm_litoral	0:78a36db66fbb	428	break;
apm_litoral	0:78a36db66fbb	429	case SCSI_CMD_READ_CAPACITY:
apm_litoral	0:78a36db66fbb	430	data_len = 8;
apm_litoral	0:78a36db66fbb	431	break;
apm_litoral	0:78a36db66fbb	432	case SCSI_CMD_REQUEST_SENSE:
apm_litoral	0:78a36db66fbb	433	data_len = 18;
apm_litoral	0:78a36db66fbb	434	break;
apm_litoral	0:78a36db66fbb	435	case SCSI_CMD_INQUIRY:
apm_litoral	0:78a36db66fbb	436	data_len = 36;
apm_litoral	0:78a36db66fbb	437	break;
apm_litoral	0:78a36db66fbb	438	default:
apm_litoral	0:78a36db66fbb	439	data_len = block_size * num_blocks;
apm_litoral	0:78a36db66fbb	440	break;
apm_litoral	0:78a36db66fbb	441	}
apm_litoral	0:78a36db66fbb	442	WriteLE32U(TDBuffer, CBW_SIGNATURE);
apm_litoral	0:78a36db66fbb	443	WriteLE32U(&TDBuffer[4], tag_cnt);
apm_litoral	0:78a36db66fbb	444	WriteLE32U(&TDBuffer[8], data_len);
apm_litoral	0:78a36db66fbb	445	TDBuffer[12] = (direction == MS_DATA_DIR_NONE) ? 0 : direction;
apm_litoral	0:78a36db66fbb	446	TDBuffer[14] = scsi_cmd_len; /* Length of the CBW */
apm_litoral	0:78a36db66fbb	447	TDBuffer[15] = scsi_cmd;
apm_litoral	0:78a36db66fbb	448	if ((scsi_cmd == SCSI_CMD_REQUEST_SENSE)
apm_litoral	0:78a36db66fbb	449	\|\| (scsi_cmd == SCSI_CMD_INQUIRY)) {
apm_litoral	0:78a36db66fbb	450	TDBuffer[19] = (USB_INT08U)data_len;
apm_litoral	0:78a36db66fbb	451	} else {
apm_litoral	0:78a36db66fbb	452	WriteBE32U(&TDBuffer[17], block_number);
apm_litoral	0:78a36db66fbb	453	}
apm_litoral	0:78a36db66fbb	454	WriteBE16U(&TDBuffer[22], num_blocks);
apm_litoral	0:78a36db66fbb	455	}

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Type:	Library
Created:	10 Apr 2012
Imports:	7
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	2

usbhost_ms.c@0:78a36db66fbb, 2012-04-10 (annotated)

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