LPC1700CMSIS_Examples - These are the examples provided for [[/users/fran…

Users » frank26080115 » Code » LPC1700CMSIS_Examples

These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!

USBDEV/USBCDC/cdcuser.c@0:bf7b9fba3924, 2011-03-20 (annotated)

Committer:: frank26080115
Date:: Sun Mar 20 05:38:56 2011 +0000
Revision:: 0:bf7b9fba3924

Who changed what in which revision?

User	Revision	Line number	New contents of line
frank26080115	0:bf7b9fba3924	1	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	2	* U S B - K e r n e l
frank26080115	0:bf7b9fba3924	3	*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	4	* Name: cdcuser.c
frank26080115	0:bf7b9fba3924	5	* Purpose: USB Communication Device Class User module
frank26080115	0:bf7b9fba3924	6	* Version: V1.10
frank26080115	0:bf7b9fba3924	7	*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	8	* This software is supplied "AS IS" without any warranties, express,
frank26080115	0:bf7b9fba3924	9	* implied or statutory, including but not limited to the implied
frank26080115	0:bf7b9fba3924	10	* warranties of fitness for purpose, satisfactory quality and
frank26080115	0:bf7b9fba3924	11	* noninfringement. Keil extends you a royalty-free right to reproduce
frank26080115	0:bf7b9fba3924	12	* and distribute executable files created using this software for use
frank26080115	0:bf7b9fba3924	13	* on NXP Semiconductors LPC microcontroller devices only. Nothing else
frank26080115	0:bf7b9fba3924	14	* gives you the right to use this software.
frank26080115	0:bf7b9fba3924	15	*
frank26080115	0:bf7b9fba3924	16	* Copyright (c) 2009 Keil - An ARM Company. All rights reserved.
frank26080115	0:bf7b9fba3924	17	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	18
frank26080115	0:bf7b9fba3924	19	#include "lpc_types.h"
frank26080115	0:bf7b9fba3924	20
frank26080115	0:bf7b9fba3924	21	#include "usb.h"
frank26080115	0:bf7b9fba3924	22	#include "usbhw.h"
frank26080115	0:bf7b9fba3924	23	#include "usbcfg.h"
frank26080115	0:bf7b9fba3924	24	#include "usbcore.h"
frank26080115	0:bf7b9fba3924	25	#include "cdc.h"
frank26080115	0:bf7b9fba3924	26	#include "cdcuser.h"
frank26080115	0:bf7b9fba3924	27	#include "serial.h"
frank26080115	0:bf7b9fba3924	28
frank26080115	0:bf7b9fba3924	29
frank26080115	0:bf7b9fba3924	30	unsigned char BulkBufIn [USB_CDC_BUFSIZE]; // Buffer to store USB IN packet
frank26080115	0:bf7b9fba3924	31	unsigned char BulkBufOut [USB_CDC_BUFSIZE]; // Buffer to store USB OUT packet
frank26080115	0:bf7b9fba3924	32	unsigned char NotificationBuf [10];
frank26080115	0:bf7b9fba3924	33
frank26080115	0:bf7b9fba3924	34	CDC_LINE_CODING CDC_LineCoding = {9600, 0, 0, 8};
frank26080115	0:bf7b9fba3924	35	unsigned short CDC_SerialState = 0x0000;
frank26080115	0:bf7b9fba3924	36	unsigned short CDC_DepInEmpty = 1; // Data IN EP is empty
frank26080115	0:bf7b9fba3924	37
frank26080115	0:bf7b9fba3924	38	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	39	We need a buffer for incomming data on USB port because USB receives
frank26080115	0:bf7b9fba3924	40	much faster than UART transmits
frank26080115	0:bf7b9fba3924	41	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	42	/* Buffer masks */
frank26080115	0:bf7b9fba3924	43	#define CDC_BUF_SIZE (64) // Output buffer in bytes (power 2)
frank26080115	0:bf7b9fba3924	44	// large enough for file transfer
frank26080115	0:bf7b9fba3924	45	#define CDC_BUF_MASK (CDC_BUF_SIZE-1ul)
frank26080115	0:bf7b9fba3924	46
frank26080115	0:bf7b9fba3924	47	/* Buffer read / write macros */
frank26080115	0:bf7b9fba3924	48	#define CDC_BUF_RESET(cdcBuf) (cdcBuf.rdIdx = cdcBuf.wrIdx = 0)
frank26080115	0:bf7b9fba3924	49	#define CDC_BUF_WR(cdcBuf, dataIn) (cdcBuf.data[CDC_BUF_MASK & cdcBuf.wrIdx++] = (dataIn))
frank26080115	0:bf7b9fba3924	50	#define CDC_BUF_RD(cdcBuf) (cdcBuf.data[CDC_BUF_MASK & cdcBuf.rdIdx++])
frank26080115	0:bf7b9fba3924	51	#define CDC_BUF_EMPTY(cdcBuf) (cdcBuf.rdIdx == cdcBuf.wrIdx)
frank26080115	0:bf7b9fba3924	52	#define CDC_BUF_FULL(cdcBuf) (cdcBuf.rdIdx == cdcBuf.wrIdx+1)
frank26080115	0:bf7b9fba3924	53	#define CDC_BUF_COUNT(cdcBuf) (CDC_BUF_MASK & (cdcBuf.wrIdx - cdcBuf.rdIdx))
frank26080115	0:bf7b9fba3924	54
frank26080115	0:bf7b9fba3924	55
frank26080115	0:bf7b9fba3924	56	// CDC output buffer
frank26080115	0:bf7b9fba3924	57	typedef struct __CDC_BUF_T {
frank26080115	0:bf7b9fba3924	58	unsigned char data[CDC_BUF_SIZE];
frank26080115	0:bf7b9fba3924	59	unsigned int wrIdx;
frank26080115	0:bf7b9fba3924	60	unsigned int rdIdx;
frank26080115	0:bf7b9fba3924	61	} CDC_BUF_T;
frank26080115	0:bf7b9fba3924	62
frank26080115	0:bf7b9fba3924	63	CDC_BUF_T CDC_OutBuf; // buffer for all CDC Out data
frank26080115	0:bf7b9fba3924	64
frank26080115	0:bf7b9fba3924	65	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	66	read data from CDC_OutBuf
frank26080115	0:bf7b9fba3924	67	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	68	int CDC_RdOutBuf (char buffer, const int length) {
frank26080115	0:bf7b9fba3924	69	int bytesToRead, bytesRead;
frank26080115	0:bf7b9fba3924	70
frank26080115	0:bf7b9fba3924	71	/* Read length bytes, block if bytes are not avaialable */
frank26080115	0:bf7b9fba3924	72	bytesToRead = *length;
frank26080115	0:bf7b9fba3924	73	bytesToRead = (bytesToRead < (length)) ? bytesToRead : (length);
frank26080115	0:bf7b9fba3924	74	bytesRead = bytesToRead;
frank26080115	0:bf7b9fba3924	75
frank26080115	0:bf7b9fba3924	76
frank26080115	0:bf7b9fba3924	77	// ... add code to check for underrun
frank26080115	0:bf7b9fba3924	78
frank26080115	0:bf7b9fba3924	79	while (bytesToRead--) {
frank26080115	0:bf7b9fba3924	80	*buffer++ = CDC_BUF_RD(CDC_OutBuf);
frank26080115	0:bf7b9fba3924	81	}
frank26080115	0:bf7b9fba3924	82	return (bytesRead);
frank26080115	0:bf7b9fba3924	83	}
frank26080115	0:bf7b9fba3924	84
frank26080115	0:bf7b9fba3924	85	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	86	write data to CDC_OutBuf
frank26080115	0:bf7b9fba3924	87	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	88	int CDC_WrOutBuf (const char buffer, int length) {
frank26080115	0:bf7b9fba3924	89	int bytesToWrite, bytesWritten;
frank26080115	0:bf7b9fba3924	90
frank26080115	0:bf7b9fba3924	91	// Write *length bytes
frank26080115	0:bf7b9fba3924	92	bytesToWrite = *length;
frank26080115	0:bf7b9fba3924	93	bytesWritten = bytesToWrite;
frank26080115	0:bf7b9fba3924	94
frank26080115	0:bf7b9fba3924	95
frank26080115	0:bf7b9fba3924	96	// ... add code to check for overwrite
frank26080115	0:bf7b9fba3924	97
frank26080115	0:bf7b9fba3924	98	while (bytesToWrite) {
frank26080115	0:bf7b9fba3924	99	CDC_BUF_WR(CDC_OutBuf, *buffer++); // Copy Data to buffer
frank26080115	0:bf7b9fba3924	100	bytesToWrite--;
frank26080115	0:bf7b9fba3924	101	}
frank26080115	0:bf7b9fba3924	102
frank26080115	0:bf7b9fba3924	103	return (bytesWritten);
frank26080115	0:bf7b9fba3924	104	}
frank26080115	0:bf7b9fba3924	105
frank26080115	0:bf7b9fba3924	106	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	107	check if character(s) are available at CDC_OutBuf
frank26080115	0:bf7b9fba3924	108	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	109	int CDC_OutBufAvailChar (int *availChar) {
frank26080115	0:bf7b9fba3924	110
frank26080115	0:bf7b9fba3924	111	*availChar = CDC_BUF_COUNT(CDC_OutBuf);
frank26080115	0:bf7b9fba3924	112
frank26080115	0:bf7b9fba3924	113	return (0);
frank26080115	0:bf7b9fba3924	114	}
frank26080115	0:bf7b9fba3924	115	/* end Buffer handling */
frank26080115	0:bf7b9fba3924	116
frank26080115	0:bf7b9fba3924	117
frank26080115	0:bf7b9fba3924	118	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	119	CDC Initialisation
frank26080115	0:bf7b9fba3924	120	Initializes the data structures and serial port
frank26080115	0:bf7b9fba3924	121	Parameters: None
frank26080115	0:bf7b9fba3924	122	Return Value: None
frank26080115	0:bf7b9fba3924	123	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	124	void CDC_Init (char portNum ) {
frank26080115	0:bf7b9fba3924	125
frank26080115	0:bf7b9fba3924	126	if ( portNum == 0 )
frank26080115	0:bf7b9fba3924	127	{
frank26080115	0:bf7b9fba3924	128	ser_OpenPort (0);
frank26080115	0:bf7b9fba3924	129	ser_InitPort0 (CDC_LineCoding.dwDTERate,
frank26080115	0:bf7b9fba3924	130	CDC_LineCoding.bDataBits,
frank26080115	0:bf7b9fba3924	131	CDC_LineCoding.bParityType,
frank26080115	0:bf7b9fba3924	132	CDC_LineCoding.bCharFormat);
frank26080115	0:bf7b9fba3924	133	}
frank26080115	0:bf7b9fba3924	134	else
frank26080115	0:bf7b9fba3924	135	{
frank26080115	0:bf7b9fba3924	136	ser_OpenPort (1);
frank26080115	0:bf7b9fba3924	137	ser_InitPort1 (CDC_LineCoding.dwDTERate,
frank26080115	0:bf7b9fba3924	138	CDC_LineCoding.bDataBits,
frank26080115	0:bf7b9fba3924	139	CDC_LineCoding.bParityType,
frank26080115	0:bf7b9fba3924	140	CDC_LineCoding.bCharFormat);
frank26080115	0:bf7b9fba3924	141	}
frank26080115	0:bf7b9fba3924	142	CDC_DepInEmpty = 1;
frank26080115	0:bf7b9fba3924	143	CDC_SerialState = CDC_GetSerialState();
frank26080115	0:bf7b9fba3924	144
frank26080115	0:bf7b9fba3924	145	CDC_BUF_RESET(CDC_OutBuf);
frank26080115	0:bf7b9fba3924	146	}
frank26080115	0:bf7b9fba3924	147
frank26080115	0:bf7b9fba3924	148
frank26080115	0:bf7b9fba3924	149	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	150	CDC SendEncapsulatedCommand Request Callback
frank26080115	0:bf7b9fba3924	151	Called automatically on CDC SEND_ENCAPSULATED_COMMAND Request
frank26080115	0:bf7b9fba3924	152	Parameters: None (global SetupPacket and EP0Buf)
frank26080115	0:bf7b9fba3924	153	Return Value: TRUE - Success, FALSE - Error
frank26080115	0:bf7b9fba3924	154	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	155	uint32_t CDC_SendEncapsulatedCommand (void) {
frank26080115	0:bf7b9fba3924	156
frank26080115	0:bf7b9fba3924	157	return (TRUE);
frank26080115	0:bf7b9fba3924	158	}
frank26080115	0:bf7b9fba3924	159
frank26080115	0:bf7b9fba3924	160
frank26080115	0:bf7b9fba3924	161	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	162	CDC GetEncapsulatedResponse Request Callback
frank26080115	0:bf7b9fba3924	163	Called automatically on CDC Get_ENCAPSULATED_RESPONSE Request
frank26080115	0:bf7b9fba3924	164	Parameters: None (global SetupPacket and EP0Buf)
frank26080115	0:bf7b9fba3924	165	Return Value: TRUE - Success, FALSE - Error
frank26080115	0:bf7b9fba3924	166	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	167	uint32_t CDC_GetEncapsulatedResponse (void) {
frank26080115	0:bf7b9fba3924	168
frank26080115	0:bf7b9fba3924	169	/* ... add code to handle request */
frank26080115	0:bf7b9fba3924	170	return (TRUE);
frank26080115	0:bf7b9fba3924	171	}
frank26080115	0:bf7b9fba3924	172
frank26080115	0:bf7b9fba3924	173
frank26080115	0:bf7b9fba3924	174	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	175	CDC SetCommFeature Request Callback
frank26080115	0:bf7b9fba3924	176	Called automatically on CDC Set_COMM_FATURE Request
frank26080115	0:bf7b9fba3924	177	Parameters: FeatureSelector
frank26080115	0:bf7b9fba3924	178	Return Value: TRUE - Success, FALSE - Error
frank26080115	0:bf7b9fba3924	179	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	180	uint32_t CDC_SetCommFeature (unsigned short wFeatureSelector) {
frank26080115	0:bf7b9fba3924	181
frank26080115	0:bf7b9fba3924	182	/* ... add code to handle request */
frank26080115	0:bf7b9fba3924	183	return (TRUE);
frank26080115	0:bf7b9fba3924	184	}
frank26080115	0:bf7b9fba3924	185
frank26080115	0:bf7b9fba3924	186
frank26080115	0:bf7b9fba3924	187	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	188	CDC GetCommFeature Request Callback
frank26080115	0:bf7b9fba3924	189	Called automatically on CDC Get_COMM_FATURE Request
frank26080115	0:bf7b9fba3924	190	Parameters: FeatureSelector
frank26080115	0:bf7b9fba3924	191	Return Value: TRUE - Success, FALSE - Error
frank26080115	0:bf7b9fba3924	192	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	193	uint32_t CDC_GetCommFeature (unsigned short wFeatureSelector) {
frank26080115	0:bf7b9fba3924	194
frank26080115	0:bf7b9fba3924	195	/* ... add code to handle request */
frank26080115	0:bf7b9fba3924	196	return (TRUE);
frank26080115	0:bf7b9fba3924	197	}
frank26080115	0:bf7b9fba3924	198
frank26080115	0:bf7b9fba3924	199
frank26080115	0:bf7b9fba3924	200	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	201	CDC ClearCommFeature Request Callback
frank26080115	0:bf7b9fba3924	202	Called automatically on CDC CLEAR_COMM_FATURE Request
frank26080115	0:bf7b9fba3924	203	Parameters: FeatureSelector
frank26080115	0:bf7b9fba3924	204	Return Value: TRUE - Success, FALSE - Error
frank26080115	0:bf7b9fba3924	205	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	206	uint32_t CDC_ClearCommFeature (unsigned short wFeatureSelector) {
frank26080115	0:bf7b9fba3924	207
frank26080115	0:bf7b9fba3924	208	/* ... add code to handle request */
frank26080115	0:bf7b9fba3924	209	return (TRUE);
frank26080115	0:bf7b9fba3924	210	}
frank26080115	0:bf7b9fba3924	211
frank26080115	0:bf7b9fba3924	212
frank26080115	0:bf7b9fba3924	213	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	214	CDC SetLineCoding Request Callback
frank26080115	0:bf7b9fba3924	215	Called automatically on CDC SET_LINE_CODING Request
frank26080115	0:bf7b9fba3924	216	Parameters: none (global SetupPacket and EP0Buf)
frank26080115	0:bf7b9fba3924	217	Return Value: TRUE - Success, FALSE - Error
frank26080115	0:bf7b9fba3924	218	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	219	uint32_t CDC_SetLineCoding (void) {
frank26080115	0:bf7b9fba3924	220
frank26080115	0:bf7b9fba3924	221	CDC_LineCoding.dwDTERate = (EP0Buf[0] << 0)
frank26080115	0:bf7b9fba3924	222	\| (EP0Buf[1] << 8)
frank26080115	0:bf7b9fba3924	223	\| (EP0Buf[2] << 16)
frank26080115	0:bf7b9fba3924	224	\| (EP0Buf[3] << 24);
frank26080115	0:bf7b9fba3924	225	CDC_LineCoding.bCharFormat = EP0Buf[4];
frank26080115	0:bf7b9fba3924	226	CDC_LineCoding.bParityType = EP0Buf[5];
frank26080115	0:bf7b9fba3924	227	CDC_LineCoding.bDataBits = EP0Buf[6];
frank26080115	0:bf7b9fba3924	228
frank26080115	0:bf7b9fba3924	229	#if PORT_NUM
frank26080115	0:bf7b9fba3924	230	ser_ClosePort(1);
frank26080115	0:bf7b9fba3924	231	ser_OpenPort (1);
frank26080115	0:bf7b9fba3924	232	ser_InitPort1 (CDC_LineCoding.dwDTERate,
frank26080115	0:bf7b9fba3924	233	CDC_LineCoding.bDataBits,
frank26080115	0:bf7b9fba3924	234	CDC_LineCoding.bParityType,
frank26080115	0:bf7b9fba3924	235	CDC_LineCoding.bCharFormat);
frank26080115	0:bf7b9fba3924	236	#else
frank26080115	0:bf7b9fba3924	237	ser_ClosePort(0);
frank26080115	0:bf7b9fba3924	238	ser_OpenPort (0);
frank26080115	0:bf7b9fba3924	239	ser_InitPort0 (CDC_LineCoding.dwDTERate,
frank26080115	0:bf7b9fba3924	240	CDC_LineCoding.bDataBits,
frank26080115	0:bf7b9fba3924	241	CDC_LineCoding.bParityType,
frank26080115	0:bf7b9fba3924	242	CDC_LineCoding.bCharFormat);
frank26080115	0:bf7b9fba3924	243	#endif
frank26080115	0:bf7b9fba3924	244	return (TRUE);
frank26080115	0:bf7b9fba3924	245	}
frank26080115	0:bf7b9fba3924	246
frank26080115	0:bf7b9fba3924	247
frank26080115	0:bf7b9fba3924	248	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	249	CDC GetLineCoding Request Callback
frank26080115	0:bf7b9fba3924	250	Called automatically on CDC GET_LINE_CODING Request
frank26080115	0:bf7b9fba3924	251	Parameters: None (global SetupPacket and EP0Buf)
frank26080115	0:bf7b9fba3924	252	Return Value: TRUE - Success, FALSE - Error
frank26080115	0:bf7b9fba3924	253	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	254	uint32_t CDC_GetLineCoding (void) {
frank26080115	0:bf7b9fba3924	255
frank26080115	0:bf7b9fba3924	256	EP0Buf[0] = (CDC_LineCoding.dwDTERate >> 0) & 0xFF;
frank26080115	0:bf7b9fba3924	257	EP0Buf[1] = (CDC_LineCoding.dwDTERate >> 8) & 0xFF;
frank26080115	0:bf7b9fba3924	258	EP0Buf[2] = (CDC_LineCoding.dwDTERate >> 16) & 0xFF;
frank26080115	0:bf7b9fba3924	259	EP0Buf[3] = (CDC_LineCoding.dwDTERate >> 24) & 0xFF;
frank26080115	0:bf7b9fba3924	260	EP0Buf[4] = CDC_LineCoding.bCharFormat;
frank26080115	0:bf7b9fba3924	261	EP0Buf[5] = CDC_LineCoding.bParityType;
frank26080115	0:bf7b9fba3924	262	EP0Buf[6] = CDC_LineCoding.bDataBits;
frank26080115	0:bf7b9fba3924	263
frank26080115	0:bf7b9fba3924	264	return (TRUE);
frank26080115	0:bf7b9fba3924	265	}
frank26080115	0:bf7b9fba3924	266
frank26080115	0:bf7b9fba3924	267
frank26080115	0:bf7b9fba3924	268	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	269	CDC SetControlLineState Request Callback
frank26080115	0:bf7b9fba3924	270	Called automatically on CDC SET_CONTROL_LINE_STATE Request
frank26080115	0:bf7b9fba3924	271	Parameters: ControlSignalBitmap
frank26080115	0:bf7b9fba3924	272	Return Value: TRUE - Success, FALSE - Error
frank26080115	0:bf7b9fba3924	273	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	274	uint32_t CDC_SetControlLineState (unsigned short wControlSignalBitmap) {
frank26080115	0:bf7b9fba3924	275
frank26080115	0:bf7b9fba3924	276	/* ... add code to handle request */
frank26080115	0:bf7b9fba3924	277	return (TRUE);
frank26080115	0:bf7b9fba3924	278	}
frank26080115	0:bf7b9fba3924	279
frank26080115	0:bf7b9fba3924	280
frank26080115	0:bf7b9fba3924	281	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	282	CDC SendBreak Request Callback
frank26080115	0:bf7b9fba3924	283	Called automatically on CDC Set_COMM_FATURE Request
frank26080115	0:bf7b9fba3924	284	Parameters: 0xFFFF start of Break
frank26080115	0:bf7b9fba3924	285	0x0000 stop of Break
frank26080115	0:bf7b9fba3924	286	0x#### Duration of Break
frank26080115	0:bf7b9fba3924	287	Return Value: TRUE - Success, FALSE - Error
frank26080115	0:bf7b9fba3924	288	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	289	uint32_t CDC_SendBreak (unsigned short wDurationOfBreak) {
frank26080115	0:bf7b9fba3924	290
frank26080115	0:bf7b9fba3924	291	/* ... add code to handle request */
frank26080115	0:bf7b9fba3924	292	return (TRUE);
frank26080115	0:bf7b9fba3924	293	}
frank26080115	0:bf7b9fba3924	294
frank26080115	0:bf7b9fba3924	295
frank26080115	0:bf7b9fba3924	296	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	297	CDC_BulkIn call on DataIn Request
frank26080115	0:bf7b9fba3924	298	Parameters: none
frank26080115	0:bf7b9fba3924	299	Return Value: none
frank26080115	0:bf7b9fba3924	300	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	301	void CDC_BulkIn(void) {
frank26080115	0:bf7b9fba3924	302	int numBytesRead, numBytesAvail;
frank26080115	0:bf7b9fba3924	303
frank26080115	0:bf7b9fba3924	304	ser_AvailChar (&numBytesAvail);
frank26080115	0:bf7b9fba3924	305
frank26080115	0:bf7b9fba3924	306	// ... add code to check for overwrite
frank26080115	0:bf7b9fba3924	307
frank26080115	0:bf7b9fba3924	308	numBytesRead = ser_Read ((char *)&BulkBufIn[0], &numBytesAvail);
frank26080115	0:bf7b9fba3924	309
frank26080115	0:bf7b9fba3924	310	// send over USB
frank26080115	0:bf7b9fba3924	311	if (numBytesRead > 0) {
frank26080115	0:bf7b9fba3924	312	USB_WriteEP (CDC_DEP_IN, &BulkBufIn[0], numBytesRead);
frank26080115	0:bf7b9fba3924	313	}
frank26080115	0:bf7b9fba3924	314	else {
frank26080115	0:bf7b9fba3924	315	CDC_DepInEmpty = 1;
frank26080115	0:bf7b9fba3924	316	}
frank26080115	0:bf7b9fba3924	317	}
frank26080115	0:bf7b9fba3924	318
frank26080115	0:bf7b9fba3924	319
frank26080115	0:bf7b9fba3924	320	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	321	CDC_BulkOut call on DataOut Request
frank26080115	0:bf7b9fba3924	322	Parameters: none
frank26080115	0:bf7b9fba3924	323	Return Value: none
frank26080115	0:bf7b9fba3924	324	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	325	void CDC_BulkOut(void) {
frank26080115	0:bf7b9fba3924	326	int numBytesRead;
frank26080115	0:bf7b9fba3924	327
frank26080115	0:bf7b9fba3924	328	// get data from USB into intermediate buffer
frank26080115	0:bf7b9fba3924	329	numBytesRead = USB_ReadEP(CDC_DEP_OUT, &BulkBufOut[0]);
frank26080115	0:bf7b9fba3924	330
frank26080115	0:bf7b9fba3924	331	// ... add code to check for overwrite
frank26080115	0:bf7b9fba3924	332
frank26080115	0:bf7b9fba3924	333	// store data in a buffer to transmit it over serial interface
frank26080115	0:bf7b9fba3924	334	CDC_WrOutBuf ((char *)&BulkBufOut[0], &numBytesRead);
frank26080115	0:bf7b9fba3924	335
frank26080115	0:bf7b9fba3924	336	}
frank26080115	0:bf7b9fba3924	337
frank26080115	0:bf7b9fba3924	338
frank26080115	0:bf7b9fba3924	339	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	340	Get the SERIAL_STATE as defined in usbcdc11.pdf, 6.3.5, Table 69.
frank26080115	0:bf7b9fba3924	341	Parameters: none
frank26080115	0:bf7b9fba3924	342	Return Value: SerialState as defined in usbcdc11.pdf
frank26080115	0:bf7b9fba3924	343	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	344	unsigned short CDC_GetSerialState (void) {
frank26080115	0:bf7b9fba3924	345	unsigned short temp;
frank26080115	0:bf7b9fba3924	346
frank26080115	0:bf7b9fba3924	347	CDC_SerialState = 0;
frank26080115	0:bf7b9fba3924	348	ser_LineState (&temp);
frank26080115	0:bf7b9fba3924	349
frank26080115	0:bf7b9fba3924	350	if (temp & 0x8000) CDC_SerialState \|= CDC_SERIAL_STATE_RX_CARRIER;
frank26080115	0:bf7b9fba3924	351	if (temp & 0x2000) CDC_SerialState \|= CDC_SERIAL_STATE_TX_CARRIER;
frank26080115	0:bf7b9fba3924	352	if (temp & 0x0010) CDC_SerialState \|= CDC_SERIAL_STATE_BREAK;
frank26080115	0:bf7b9fba3924	353	if (temp & 0x4000) CDC_SerialState \|= CDC_SERIAL_STATE_RING;
frank26080115	0:bf7b9fba3924	354	if (temp & 0x0008) CDC_SerialState \|= CDC_SERIAL_STATE_FRAMING;
frank26080115	0:bf7b9fba3924	355	if (temp & 0x0004) CDC_SerialState \|= CDC_SERIAL_STATE_PARITY;
frank26080115	0:bf7b9fba3924	356	if (temp & 0x0002) CDC_SerialState \|= CDC_SERIAL_STATE_OVERRUN;
frank26080115	0:bf7b9fba3924	357
frank26080115	0:bf7b9fba3924	358	return (CDC_SerialState);
frank26080115	0:bf7b9fba3924	359	}
frank26080115	0:bf7b9fba3924	360
frank26080115	0:bf7b9fba3924	361
frank26080115	0:bf7b9fba3924	362	/*----------------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	363	Send the SERIAL_STATE notification as defined in usbcdc11.pdf, 6.3.5.
frank26080115	0:bf7b9fba3924	364	---------------------------------------------------------------------------/
frank26080115	0:bf7b9fba3924	365	void CDC_NotificationIn (void) {
frank26080115	0:bf7b9fba3924	366
frank26080115	0:bf7b9fba3924	367	NotificationBuf[0] = 0xA1; // bmRequestType
frank26080115	0:bf7b9fba3924	368	NotificationBuf[1] = CDC_NOTIFICATION_SERIAL_STATE; // bNotification (SERIAL_STATE)
frank26080115	0:bf7b9fba3924	369	NotificationBuf[2] = 0x00; // wValue
frank26080115	0:bf7b9fba3924	370	NotificationBuf[3] = 0x00;
frank26080115	0:bf7b9fba3924	371	NotificationBuf[4] = 0x00; // wIndex (Interface #, LSB first)
frank26080115	0:bf7b9fba3924	372	NotificationBuf[5] = 0x00;
frank26080115	0:bf7b9fba3924	373	NotificationBuf[6] = 0x02; // wLength (Data length = 2 bytes, LSB first)
frank26080115	0:bf7b9fba3924	374	NotificationBuf[7] = 0x00;
frank26080115	0:bf7b9fba3924	375	NotificationBuf[8] = (CDC_SerialState >> 0) & 0xFF; // UART State Bitmap (16bits, LSB first)
frank26080115	0:bf7b9fba3924	376	NotificationBuf[9] = (CDC_SerialState >> 8) & 0xFF;
frank26080115	0:bf7b9fba3924	377
frank26080115	0:bf7b9fba3924	378	USB_WriteEP (CDC_CEP_IN, &NotificationBuf[0], 10); // send notification
frank26080115	0:bf7b9fba3924	379	}

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Type:	Program
Created:	20 Mar 2011
Imports:	199
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	7

USBDEV/USBCDC/cdcuser.c@0:bf7b9fba3924, 2011-03-20 (annotated)

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