git://developer.intra2net.com / libftdi / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
C++ wrapper: Fix infinite recursion in set_bitmode()
[libftdi] / src / ftdi.h
... / ...
CommitLineData
1/***************************************************************************
2 ftdi.h - description
3 -------------------
4 begin : Fri Apr 4 2003
5 copyright : (C) 2003 by Intra2net AG
6 email : opensource@intra2net.com
7 ***************************************************************************/
8
9/***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU Lesser General Public License *
13 * version 2.1 as published by the Free Software Foundation; *
14 * *
15 ***************************************************************************/
16
17#ifndef __libftdi_h__
18#define __libftdi_h__
19
20#include <libusb.h>
21
22#define FTDI_DEFAULT_EEPROM_SIZE 128
23
24/** FTDI chip type */
25enum ftdi_chip_type { TYPE_AM=0, TYPE_BM=1, TYPE_2232C=2, TYPE_R=3, TYPE_2232H=4, TYPE_4232H=5 };
26/** Parity mode for ftdi_set_line_property() */
27enum ftdi_parity_type { NONE=0, ODD=1, EVEN=2, MARK=3, SPACE=4 };
28/** Number of stop bits for ftdi_set_line_property() */
29enum ftdi_stopbits_type { STOP_BIT_1=0, STOP_BIT_15=1, STOP_BIT_2=2 };
30/** Number of bits for ftdi_set_line_property() */
31enum ftdi_bits_type { BITS_7=7, BITS_8=8 };
32/** Break type for ftdi_set_line_property2() */
33enum ftdi_break_type { BREAK_OFF=0, BREAK_ON=1 };
34
35/** MPSSE bitbang modes */
36enum ftdi_mpsse_mode
37{
38 BITMODE_RESET = 0x00, /**< switch off bitbang mode, back to regular serial/FIFO */
39 BITMODE_BITBANG= 0x01, /**< classical asynchronous bitbang mode, introduced with B-type chips */
40 BITMODE_MPSSE = 0x02, /**< MPSSE mode, available on 2232x chips */
41 BITMODE_SYNCBB = 0x04, /**< synchronous bitbang mode, available on 2232x and R-type chips */
42 BITMODE_MCU = 0x08, /**< MCU Host Bus Emulation mode, available on 2232x chips */
43 /* CPU-style fifo mode gets set via EEPROM */
44 BITMODE_OPTO = 0x10, /**< Fast Opto-Isolated Serial Interface Mode, available on 2232x chips */
45 BITMODE_CBUS = 0x20, /**< Bitbang on CBUS pins of R-type chips, configure in EEPROM before */
46 BITMODE_SYNCFF = 0x40, /**< Single Channel Synchronous FIFO mode, available on 2232H chips */
47};
48
49/** Port interface for chips with multiple interfaces */
50enum ftdi_interface
51{
52 INTERFACE_ANY = 0,
53 INTERFACE_A = 1,
54 INTERFACE_B = 2,
55 INTERFACE_C = 3,
56 INTERFACE_D = 4
57};
58
59/* Shifting commands IN MPSSE Mode*/
60#define MPSSE_WRITE_NEG 0x01 /* Write TDI/DO on negative TCK/SK edge*/
61#define MPSSE_BITMODE 0x02 /* Write bits, not bytes */
62#define MPSSE_READ_NEG 0x04 /* Sample TDO/DI on negative TCK/SK edge */
63#define MPSSE_LSB 0x08 /* LSB first */
64#define MPSSE_DO_WRITE 0x10 /* Write TDI/DO */
65#define MPSSE_DO_READ 0x20 /* Read TDO/DI */
66#define MPSSE_WRITE_TMS 0x40 /* Write TMS/CS */
67
68/* FTDI MPSSE commands */
69#define SET_BITS_LOW 0x80
70/*BYTE DATA*/
71/*BYTE Direction*/
72#define SET_BITS_HIGH 0x82
73/*BYTE DATA*/
74/*BYTE Direction*/
75#define GET_BITS_LOW 0x81
76#define GET_BITS_HIGH 0x83
77#define LOOPBACK_START 0x84
78#define LOOPBACK_END 0x85
79#define TCK_DIVISOR 0x86
80/* Value Low */
81/* Value HIGH */ /*rate is 12000000/((1+value)*2) */
82#define DIV_VALUE(rate) (rate > 6000000)?0:((6000000/rate -1) > 0xffff)? 0xffff: (6000000/rate -1)
83
84/* Commands in MPSSE and Host Emulation Mode */
85#define SEND_IMMEDIATE 0x87
86#define WAIT_ON_HIGH 0x88
87#define WAIT_ON_LOW 0x89
88
89/* Commands in Host Emulation Mode */
90#define READ_SHORT 0x90
91/* Address_Low */
92#define READ_EXTENDED 0x91
93/* Address High */
94/* Address Low */
95#define WRITE_SHORT 0x92
96/* Address_Low */
97#define WRITE_EXTENDED 0x93
98/* Address High */
99/* Address Low */
100
101/* Definitions for flow control */
102#define SIO_RESET 0 /* Reset the port */
103#define SIO_MODEM_CTRL 1 /* Set the modem control register */
104#define SIO_SET_FLOW_CTRL 2 /* Set flow control register */
105#define SIO_SET_BAUD_RATE 3 /* Set baud rate */
106#define SIO_SET_DATA 4 /* Set the data characteristics of the port */
107
108#define FTDI_DEVICE_OUT_REQTYPE (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_OUT)
109#define FTDI_DEVICE_IN_REQTYPE (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_IN)
110
111/* Requests */
112#define SIO_RESET_REQUEST SIO_RESET
113#define SIO_SET_BAUDRATE_REQUEST SIO_SET_BAUD_RATE
114#define SIO_SET_DATA_REQUEST SIO_SET_DATA
115#define SIO_SET_FLOW_CTRL_REQUEST SIO_SET_FLOW_CTRL
116#define SIO_SET_MODEM_CTRL_REQUEST SIO_MODEM_CTRL
117#define SIO_POLL_MODEM_STATUS_REQUEST 0x05
118#define SIO_SET_EVENT_CHAR_REQUEST 0x06
119#define SIO_SET_ERROR_CHAR_REQUEST 0x07
120#define SIO_SET_LATENCY_TIMER_REQUEST 0x09
121#define SIO_GET_LATENCY_TIMER_REQUEST 0x0A
122#define SIO_SET_BITMODE_REQUEST 0x0B
123#define SIO_READ_PINS_REQUEST 0x0C
124#define SIO_READ_EEPROM_REQUEST 0x90
125#define SIO_WRITE_EEPROM_REQUEST 0x91
126#define SIO_ERASE_EEPROM_REQUEST 0x92
127
128
129#define SIO_RESET_SIO 0
130#define SIO_RESET_PURGE_RX 1
131#define SIO_RESET_PURGE_TX 2
132
133#define SIO_DISABLE_FLOW_CTRL 0x0
134#define SIO_RTS_CTS_HS (0x1 << 8)
135#define SIO_DTR_DSR_HS (0x2 << 8)
136#define SIO_XON_XOFF_HS (0x4 << 8)
137
138#define SIO_SET_DTR_MASK 0x1
139#define SIO_SET_DTR_HIGH ( 1 | ( SIO_SET_DTR_MASK << 8))
140#define SIO_SET_DTR_LOW ( 0 | ( SIO_SET_DTR_MASK << 8))
141#define SIO_SET_RTS_MASK 0x2
142#define SIO_SET_RTS_HIGH ( 2 | ( SIO_SET_RTS_MASK << 8 ))
143#define SIO_SET_RTS_LOW ( 0 | ( SIO_SET_RTS_MASK << 8 ))
144
145#define SIO_RTS_CTS_HS (0x1 << 8)
146
147/* marker for unused usb urb structures
148 (taken from libusb) */
149#define FTDI_URB_USERCONTEXT_COOKIE ((void *)0x1)
150
151#ifdef __GNUC__
152 #define DEPRECATED(func) func __attribute__ ((deprecated))
153#elif defined(_MSC_VER)
154 #define DEPRECATED(func) __declspec(deprecated) func
155#else
156 #pragma message("WARNING: You need to implement DEPRECATED for this compiler")
157 #define DEPRECATED(func) func
158#endif
159
160struct ftdi_transfer_control
161{
162 int completed;
163 unsigned char *buf;
164 int size;
165 int offset;
166 struct ftdi_context *ftdi;
167 struct libusb_transfer *transfer;
168};
169
170/**
171 \brief Main context structure for all libftdi functions.
172
173 Do not access directly if possible.
174*/
175struct ftdi_context
176{
177 /* USB specific */
178 /** libusb's context */
179 struct libusb_context *usb_ctx;
180 /** libusb's usb_dev_handle */
181 struct libusb_device_handle *usb_dev;
182 /** usb read timeout */
183 int usb_read_timeout;
184 /** usb write timeout */
185 int usb_write_timeout;
186
187 /* FTDI specific */
188 /** FTDI chip type */
189 enum ftdi_chip_type type;
190 /** baudrate */
191 int baudrate;
192 /** bitbang mode state */
193 unsigned char bitbang_enabled;
194 /** pointer to read buffer for ftdi_read_data */
195 unsigned char *readbuffer;
196 /** read buffer offset */
197 unsigned int readbuffer_offset;
198 /** number of remaining data in internal read buffer */
199 unsigned int readbuffer_remaining;
200 /** read buffer chunk size */
201 unsigned int readbuffer_chunksize;
202 /** write buffer chunk size */
203 unsigned int writebuffer_chunksize;
204 /** maximum packet size. Needed for filtering modem status bytes every n packets. */
205 unsigned int max_packet_size;
206
207 /* FTDI FT2232C requirecments */
208 /** FT2232C interface number: 0 or 1 */
209 int interface; /* 0 or 1 */
210 /** FT2232C index number: 1 or 2 */
211 int index; /* 1 or 2 */
212 /* Endpoints */
213 /** FT2232C end points: 1 or 2 */
214 int in_ep;
215 int out_ep; /* 1 or 2 */
216
217 /** Bitbang mode. 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode */
218 unsigned char bitbang_mode;
219
220 /** EEPROM size. Default is 128 bytes for 232BM and 245BM chips */
221 int eeprom_size;
222
223 /** String representation of last error */
224 char *error_str;
225};
226
227/**
228 \brief list of usb devices created by ftdi_usb_find_all()
229*/
230struct ftdi_device_list
231{
232 /** pointer to next entry */
233 struct ftdi_device_list *next;
234 /** pointer to libusb's usb_device */
235 struct libusb_device *dev;
236};
237
238/**
239 \brief FTDI eeprom structure
240*/
241struct ftdi_eeprom
242{
243 /** vendor id */
244 int vendor_id;
245 /** product id */
246 int product_id;
247
248 /** self powered */
249 int self_powered;
250 /** remote wakeup */
251 int remote_wakeup;
252 /** chip type */
253 int BM_type_chip;
254
255 /** input in isochronous transfer mode */
256 int in_is_isochronous;
257 /** output in isochronous transfer mode */
258 int out_is_isochronous;
259 /** suspend pull downs */
260 int suspend_pull_downs;
261
262 /** use serial */
263 int use_serial;
264 /** fake usb version */
265 int change_usb_version;
266 /** usb version */
267 int usb_version;
268 /** maximum power */
269 int max_power;
270
271 /** manufacturer name */
272 char *manufacturer;
273 /** product name */
274 char *product;
275 /** serial number */
276 char *serial;
277
278 /** eeprom size in bytes. This doesn't get stored in the eeprom
279 but is the only way to pass it to ftdi_eeprom_build. */
280 int size;
281};
282
283/**
284 \brief Progress Info for streaming read
285*/
286struct size_and_time
287{
288 uint64_t totalBytes;
289 struct timeval time;
290};
291
292typedef struct
293{
294 struct size_and_time first;
295 struct size_and_time prev;
296 struct size_and_time current;
297 double totalTime;
298 double totalRate;
299 double currentRate;
300} FTDIProgressInfo;
301
302typedef int (FTDIStreamCallback)(uint8_t *buffer, int length,
303 FTDIProgressInfo *progress, void *userdata);
304
305
306#ifdef __cplusplus
307extern "C"
308{
309#endif
310
311 int ftdi_init(struct ftdi_context *ftdi);
312 struct ftdi_context *ftdi_new(void);
313 int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface);
314
315 void ftdi_deinit(struct ftdi_context *ftdi);
316 void ftdi_free(struct ftdi_context *ftdi);
317 void ftdi_set_usbdev (struct ftdi_context *ftdi, struct libusb_device_handle *usbdev);
318
319 int ftdi_usb_find_all(struct ftdi_context *ftdi, struct ftdi_device_list **devlist,
320 int vendor, int product);
321 void ftdi_list_free(struct ftdi_device_list **devlist);
322 void ftdi_list_free2(struct ftdi_device_list *devlist);
323 int ftdi_usb_get_strings(struct ftdi_context *ftdi, struct libusb_device *dev,
324 char * manufacturer, int mnf_len,
325 char * description, int desc_len,
326 char * serial, int serial_len);
327
328 int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product);
329 int ftdi_usb_open_desc(struct ftdi_context *ftdi, int vendor, int product,
330 const char* description, const char* serial);
331 int ftdi_usb_open_desc_index(struct ftdi_context *ftdi, int vendor, int product,
332 const char* description, const char* serial, unsigned int index);
333 int ftdi_usb_open_dev(struct ftdi_context *ftdi, struct libusb_device *dev);
334 int ftdi_usb_open_string(struct ftdi_context *ftdi, const char* description);
335
336 int ftdi_usb_close(struct ftdi_context *ftdi);
337 int ftdi_usb_reset(struct ftdi_context *ftdi);
338 int ftdi_usb_purge_rx_buffer(struct ftdi_context *ftdi);
339 int ftdi_usb_purge_tx_buffer(struct ftdi_context *ftdi);
340 int ftdi_usb_purge_buffers(struct ftdi_context *ftdi);
341
342 int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate);
343 int ftdi_set_line_property(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
344 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity);
345 int ftdi_set_line_property2(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
346 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity,
347 enum ftdi_break_type break_type);
348
349 int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
350 int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
351 int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
352
353 int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
354 int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
355 int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
356
357 int ftdi_readstream(struct ftdi_context *ftdi, FTDIStreamCallback *callback,
358 void *userdata, int packetsPerTransfer, int numTransfers);
359 int ftdi_write_data_async(struct ftdi_context *ftdi, unsigned char *buf, int size);
360 void ftdi_async_complete(struct ftdi_context *ftdi, int wait_for_more);
361
362 struct ftdi_transfer_control *ftdi_read_data_submit(struct ftdi_context *ftdi, unsigned char *buf, int size);
363 int ftdi_transfer_data_done(struct ftdi_transfer_control *tc);
364
365 int DEPRECATED(ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask));
366 int ftdi_disable_bitbang(struct ftdi_context *ftdi);
367 int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode);
368 int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins);
369
370 int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency);
371 int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency);
372
373 int ftdi_poll_modem_status(struct ftdi_context *ftdi, unsigned short *status);
374
375 /* flow control */
376 int ftdi_setflowctrl(struct ftdi_context *ftdi, int flowctrl);
377 int ftdi_setdtr_rts(struct ftdi_context *ftdi, int dtr, int rts);
378 int ftdi_setdtr(struct ftdi_context *ftdi, int state);
379 int ftdi_setrts(struct ftdi_context *ftdi, int state);
380
381 int ftdi_set_event_char(struct ftdi_context *ftdi, unsigned char eventch, unsigned char enable);
382 int ftdi_set_error_char(struct ftdi_context *ftdi, unsigned char errorch, unsigned char enable);
383
384 /* set eeprom size */
385 void ftdi_eeprom_setsize(struct ftdi_context *ftdi, struct ftdi_eeprom *eeprom, int size);
386
387 /* init and build eeprom from ftdi_eeprom structure */
388 void ftdi_eeprom_initdefaults(struct ftdi_eeprom *eeprom);
389 void ftdi_eeprom_free(struct ftdi_eeprom *eeprom);
390 int ftdi_eeprom_build(struct ftdi_eeprom *eeprom, unsigned char *output);
391 int ftdi_eeprom_decode(struct ftdi_eeprom *eeprom, unsigned char *output, int size);
392
393 /* "eeprom" needs to be valid 128 byte eeprom (generated by the eeprom generator)
394 the checksum of the eeprom is valided */
395 int ftdi_read_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom);
396 int ftdi_read_chipid(struct ftdi_context *ftdi, unsigned int *chipid);
397 int ftdi_read_eeprom_getsize(struct ftdi_context *ftdi, unsigned char *eeprom, int maxsize);
398 int ftdi_write_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom);
399 int ftdi_erase_eeprom(struct ftdi_context *ftdi);
400
401 int ftdi_read_eeprom_location (struct ftdi_context *ftdi, int eeprom_addr, unsigned short *eeprom_val);
402 int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr, unsigned short eeprom_val);
403
404 char *ftdi_get_error_string(struct ftdi_context *ftdi);
405
406#ifdef __cplusplus
407}
408#endif
409
410#endif /* __libftdi_h__ */
A library to talk to FTDI chips