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Release values in EEPROM structure are not user changable. Remove it from the ftdi_ee...
[libftdi] / src / ftdi.h
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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/* Evne on 93xx66 at max 256 bytes are used (AN_121)*/
23#define FTDI_MAX_EEPROM_SIZE 256
24
25/** FTDI chip type */
26enum ftdi_chip_type { TYPE_AM=0, TYPE_BM=1, TYPE_2232C=2, TYPE_R=3, TYPE_2232H=4, TYPE_4232H=5 };
27/** Parity mode for ftdi_set_line_property() */
28enum ftdi_parity_type { NONE=0, ODD=1, EVEN=2, MARK=3, SPACE=4 };
29/** Number of stop bits for ftdi_set_line_property() */
30enum ftdi_stopbits_type { STOP_BIT_1=0, STOP_BIT_15=1, STOP_BIT_2=2 };
31/** Number of bits for ftdi_set_line_property() */
32enum ftdi_bits_type { BITS_7=7, BITS_8=8 };
33/** Break type for ftdi_set_line_property2() */
34enum ftdi_break_type { BREAK_OFF=0, BREAK_ON=1 };
35
36/** MPSSE bitbang modes */
37enum ftdi_mpsse_mode
38{
39 BITMODE_RESET = 0x00, /**< switch off bitbang mode, back to regular serial/FIFO */
40 BITMODE_BITBANG= 0x01, /**< classical asynchronous bitbang mode, introduced with B-type chips */
41 BITMODE_MPSSE = 0x02, /**< MPSSE mode, available on 2232x chips */
42 BITMODE_SYNCBB = 0x04, /**< synchronous bitbang mode, available on 2232x and R-type chips */
43 BITMODE_MCU = 0x08, /**< MCU Host Bus Emulation mode, available on 2232x chips */
44 /* CPU-style fifo mode gets set via EEPROM */
45 BITMODE_OPTO = 0x10, /**< Fast Opto-Isolated Serial Interface Mode, available on 2232x chips */
46 BITMODE_CBUS = 0x20, /**< Bitbang on CBUS pins of R-type chips, configure in EEPROM before */
47 BITMODE_SYNCFF = 0x40, /**< Single Channel Synchronous FIFO mode, available on 2232H chips */
48};
49
50/** Port interface for chips with multiple interfaces */
51enum ftdi_interface
52{
53 INTERFACE_ANY = 0,
54 INTERFACE_A = 1,
55 INTERFACE_B = 2,
56 INTERFACE_C = 3,
57 INTERFACE_D = 4
58};
59
60/* Shifting commands IN MPSSE Mode*/
61#define MPSSE_WRITE_NEG 0x01 /* Write TDI/DO on negative TCK/SK edge*/
62#define MPSSE_BITMODE 0x02 /* Write bits, not bytes */
63#define MPSSE_READ_NEG 0x04 /* Sample TDO/DI on negative TCK/SK edge */
64#define MPSSE_LSB 0x08 /* LSB first */
65#define MPSSE_DO_WRITE 0x10 /* Write TDI/DO */
66#define MPSSE_DO_READ 0x20 /* Read TDO/DI */
67#define MPSSE_WRITE_TMS 0x40 /* Write TMS/CS */
68
69/* FTDI MPSSE commands */
70#define SET_BITS_LOW 0x80
71/*BYTE DATA*/
72/*BYTE Direction*/
73#define SET_BITS_HIGH 0x82
74/*BYTE DATA*/
75/*BYTE Direction*/
76#define GET_BITS_LOW 0x81
77#define GET_BITS_HIGH 0x83
78#define LOOPBACK_START 0x84
79#define LOOPBACK_END 0x85
80#define TCK_DIVISOR 0x86
81/* Value Low */
82/* Value HIGH */ /*rate is 12000000/((1+value)*2) */
83#define DIV_VALUE(rate) (rate > 6000000)?0:((6000000/rate -1) > 0xffff)? 0xffff: (6000000/rate -1)
84
85/* Commands in MPSSE and Host Emulation Mode */
86#define SEND_IMMEDIATE 0x87
87#define WAIT_ON_HIGH 0x88
88#define WAIT_ON_LOW 0x89
89
90/* Commands in Host Emulation Mode */
91#define READ_SHORT 0x90
92/* Address_Low */
93#define READ_EXTENDED 0x91
94/* Address High */
95/* Address Low */
96#define WRITE_SHORT 0x92
97/* Address_Low */
98#define WRITE_EXTENDED 0x93
99/* Address High */
100/* Address Low */
101
102/* Definitions for flow control */
103#define SIO_RESET 0 /* Reset the port */
104#define SIO_MODEM_CTRL 1 /* Set the modem control register */
105#define SIO_SET_FLOW_CTRL 2 /* Set flow control register */
106#define SIO_SET_BAUD_RATE 3 /* Set baud rate */
107#define SIO_SET_DATA 4 /* Set the data characteristics of the port */
108
109#define FTDI_DEVICE_OUT_REQTYPE (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_OUT)
110#define FTDI_DEVICE_IN_REQTYPE (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_IN)
111
112/* Requests */
113#define SIO_RESET_REQUEST SIO_RESET
114#define SIO_SET_BAUDRATE_REQUEST SIO_SET_BAUD_RATE
115#define SIO_SET_DATA_REQUEST SIO_SET_DATA
116#define SIO_SET_FLOW_CTRL_REQUEST SIO_SET_FLOW_CTRL
117#define SIO_SET_MODEM_CTRL_REQUEST SIO_MODEM_CTRL
118#define SIO_POLL_MODEM_STATUS_REQUEST 0x05
119#define SIO_SET_EVENT_CHAR_REQUEST 0x06
120#define SIO_SET_ERROR_CHAR_REQUEST 0x07
121#define SIO_SET_LATENCY_TIMER_REQUEST 0x09
122#define SIO_GET_LATENCY_TIMER_REQUEST 0x0A
123#define SIO_SET_BITMODE_REQUEST 0x0B
124#define SIO_READ_PINS_REQUEST 0x0C
125#define SIO_READ_EEPROM_REQUEST 0x90
126#define SIO_WRITE_EEPROM_REQUEST 0x91
127#define SIO_ERASE_EEPROM_REQUEST 0x92
128
129
130#define SIO_RESET_SIO 0
131#define SIO_RESET_PURGE_RX 1
132#define SIO_RESET_PURGE_TX 2
133
134#define SIO_DISABLE_FLOW_CTRL 0x0
135#define SIO_RTS_CTS_HS (0x1 << 8)
136#define SIO_DTR_DSR_HS (0x2 << 8)
137#define SIO_XON_XOFF_HS (0x4 << 8)
138
139#define SIO_SET_DTR_MASK 0x1
140#define SIO_SET_DTR_HIGH ( 1 | ( SIO_SET_DTR_MASK << 8))
141#define SIO_SET_DTR_LOW ( 0 | ( SIO_SET_DTR_MASK << 8))
142#define SIO_SET_RTS_MASK 0x2
143#define SIO_SET_RTS_HIGH ( 2 | ( SIO_SET_RTS_MASK << 8 ))
144#define SIO_SET_RTS_LOW ( 0 | ( SIO_SET_RTS_MASK << 8 ))
145
146#define SIO_RTS_CTS_HS (0x1 << 8)
147
148/* marker for unused usb urb structures
149 (taken from libusb) */
150#define FTDI_URB_USERCONTEXT_COOKIE ((void *)0x1)
151
152#ifdef __GNUC__
153 #define DEPRECATED(func) func __attribute__ ((deprecated))
154#elif defined(_MSC_VER)
155 #define DEPRECATED(func) __declspec(deprecated) func
156#else
157 #pragma message("WARNING: You need to implement DEPRECATED for this compiler")
158 #define DEPRECATED(func) func
159#endif
160
161struct ftdi_transfer_control
162{
163 int completed;
164 unsigned char *buf;
165 int size;
166 int offset;
167 struct ftdi_context *ftdi;
168 struct libusb_transfer *transfer;
169};
170
171/**
172 \brief FTDI eeprom structure
173*/
174struct ftdi_eeprom
175{
176 /** vendor id */
177 int vendor_id;
178 /** product id */
179 int product_id;
180
181 /** self powered */
182 int self_powered;
183 /** remote wakeup */
184 int remote_wakeup;
185
186 /* Suspend on DBUS7 Low */
187 int suspend_dbus7;
188
189 /** input in isochronous transfer mode */
190 int in_is_isochronous;
191 /** output in isochronous transfer mode */
192 int out_is_isochronous;
193 /** suspend pull downs */
194 int suspend_pull_downs;
195
196 /** use serial */
197 int use_serial;
198 /** usb version */
199 int usb_version;
200 /** maximum power */
201 int max_power;
202
203 /** manufacturer name */
204 char *manufacturer;
205 /** product name */
206 char *product;
207 /** serial number */
208 char *serial;
209
210 /* 2232D/H(/FT4432H?) specific */
211 /* Hardware type, 0 = RS232 Uart, 1 = 245 FIFO, 2 = CPU FIFO,
212 4 = OPTO Isolate */
213 int channel_a_type;
214 int channel_b_type;
215 /* Driver Type, 1 = VCP */
216 int channel_a_driver;
217 int channel_b_driver;
218
219 /* Special function of FT232R devices (and possibly others as well) */
220 /** CBUS pin function. See CBUS_xxx defines. */
221 int cbus_function[5];
222 /** Select hight current drive on R devices. */
223 int high_current;
224 /** Select hight current drive on A channel (2232C */
225 int high_current_a;
226 /** Select hight current drive on B channel (2232C). */
227 int high_current_b;
228 /** Select inversion of data lines (bitmask). */
229 int invert;
230
231 /*2232H/4432H Group specific values */
232 /* Group0 is AL on 2322H and A on 4232H
233 Group1 is AH on 2232H and B on 4232H
234 Group2 is BL on 2322H and C on 4232H
235 Group3 is BH on 2232H and C on 4232H*/
236 int group0_drive;
237 int group0_schmitt;
238 int group0_slew;
239 int group1_drive;
240 int group1_schmitt;
241 int group1_slew;
242 int group2_drive;
243 int group2_schmitt;
244 int group2_slew;
245 int group3_drive;
246 int group3_schmitt;
247 int group3_slew;
248
249
250 /** eeprom size in bytes. This doesn't get stored in the eeprom
251 but is the only way to pass it to ftdi_eeprom_build. */
252 int size;
253 /* EEPROM Type 46 for 93xx46, 56 for 93xx56 and 66 for 93xx66*/
254 int chip;
255};
256
257/**
258 \brief Main context structure for all libftdi functions.
259
260 Do not access directly if possible.
261*/
262struct ftdi_context
263{
264 /* USB specific */
265 /** libusb's context */
266 struct libusb_context *usb_ctx;
267 /** libusb's usb_dev_handle */
268 struct libusb_device_handle *usb_dev;
269 /** usb read timeout */
270 int usb_read_timeout;
271 /** usb write timeout */
272 int usb_write_timeout;
273
274 /* FTDI specific */
275 /** FTDI chip type */
276 enum ftdi_chip_type type;
277 /** baudrate */
278 int baudrate;
279 /** bitbang mode state */
280 unsigned char bitbang_enabled;
281 /** pointer to read buffer for ftdi_read_data */
282 unsigned char *readbuffer;
283 /** read buffer offset */
284 unsigned int readbuffer_offset;
285 /** number of remaining data in internal read buffer */
286 unsigned int readbuffer_remaining;
287 /** read buffer chunk size */
288 unsigned int readbuffer_chunksize;
289 /** write buffer chunk size */
290 unsigned int writebuffer_chunksize;
291 /** maximum packet size. Needed for filtering modem status bytes every n packets. */
292 unsigned int max_packet_size;
293
294 /* FTDI FT2232C requirecments */
295 /** FT2232C interface number: 0 or 1 */
296 int interface; /* 0 or 1 */
297 /** FT2232C index number: 1 or 2 */
298 int index; /* 1 or 2 */
299 /* Endpoints */
300 /** FT2232C end points: 1 or 2 */
301 int in_ep;
302 int out_ep; /* 1 or 2 */
303
304 /** Bitbang mode. 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode */
305 unsigned char bitbang_mode;
306
307 /** Decoded eeprom structure */
308 struct ftdi_eeprom *eeprom;
309
310 /** String representation of last error */
311 char *error_str;
312};
313
314/**
315 \brief list of usb devices created by ftdi_usb_find_all()
316*/
317struct ftdi_device_list
318{
319 /** pointer to next entry */
320 struct ftdi_device_list *next;
321 /** pointer to libusb's usb_device */
322 struct libusb_device *dev;
323};
324
325#define USE_SERIAL_NUM 0x08
326enum ftdi_cbus_func {/* FIXME: Recheck value, especially the last */
327 CBUS_TXDEN = 0, CBUS_PWREN = 1, CBUS_RXLED = 2, CBUS_TXLED = 3, CBUS_TXRXLED = 4,
328 CBUS_SLEEP = 5, CBUS_CLK48 = 6, CBUS_CLK24 = 7, CBUS_CLK12 = 8, CBUS_CLK6 = 9,
329 CBUS_IOMODE = 0xa, CBUS_BB_WR = 0xb, CBUS_BB_RD = 0xc, CBUS_BB = 0xd};
330
331/** Invert TXD# */
332#define INVERT_TXD 0x01
333/** Invert RXD# */
334#define INVERT_RXD 0x02
335/** Invert RTS# */
336#define INVERT_RTS 0x04
337/** Invert CTS# */
338#define INVERT_CTS 0x08
339/** Invert DTR# */
340#define INVERT_DTR 0x10
341/** Invert DSR# */
342#define INVERT_DSR 0x20
343/** Invert DCD# */
344#define INVERT_DCD 0x40
345/** Invert RI# */
346#define INVERT_RI 0x80
347
348/** Interface Mode. */
349#define CHANNEL_IS_UART 0x0
350#define CHANNEL_IS_245 0x1
351#define CHANNEL_IS_CPU 0x2
352#define CHANNEL_IS_OPTO 0x4
353
354#define DRIVE_4MA 0
355#define DRIVE_8MA 1
356#define DRIVE_12MA 2
357#define DRIVE_16MA 3
358#define SLOW_SLEW 4
359#define IS_SCHMITT 8
360
361/** Driver Type. */
362#define DRIVER_VCP 0x08
363
364#define SUSPEND_DBUS7 0x80
365
366/** High current drive. */
367#define HIGH_CURRENT_DRIVE 0x10
368#define HIGH_CURRENT_DRIVE_R 0x04
369
370/**
371 \brief Progress Info for streaming read
372*/
373struct size_and_time
374{
375 uint64_t totalBytes;
376 struct timeval time;
377};
378
379typedef struct
380{
381 struct size_and_time first;
382 struct size_and_time prev;
383 struct size_and_time current;
384 double totalTime;
385 double totalRate;
386 double currentRate;
387} FTDIProgressInfo;
388
389typedef int (FTDIStreamCallback)(uint8_t *buffer, int length,
390 FTDIProgressInfo *progress, void *userdata);
391
392
393#ifdef __cplusplus
394extern "C"
395{
396#endif
397
398 int ftdi_init(struct ftdi_context *ftdi);
399 struct ftdi_context *ftdi_new(void);
400 int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface);
401
402 void ftdi_deinit(struct ftdi_context *ftdi);
403 void ftdi_free(struct ftdi_context *ftdi);
404 void ftdi_set_usbdev (struct ftdi_context *ftdi, struct libusb_device_handle *usbdev);
405
406 int ftdi_usb_find_all(struct ftdi_context *ftdi, struct ftdi_device_list **devlist,
407 int vendor, int product);
408 void ftdi_list_free(struct ftdi_device_list **devlist);
409 void ftdi_list_free2(struct ftdi_device_list *devlist);
410 int ftdi_usb_get_strings(struct ftdi_context *ftdi, struct libusb_device *dev,
411 char * manufacturer, int mnf_len,
412 char * description, int desc_len,
413 char * serial, int serial_len);
414
415 int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product);
416 int ftdi_usb_open_desc(struct ftdi_context *ftdi, int vendor, int product,
417 const char* description, const char* serial);
418 int ftdi_usb_open_desc_index(struct ftdi_context *ftdi, int vendor, int product,
419 const char* description, const char* serial, unsigned int index);
420 int ftdi_usb_open_dev(struct ftdi_context *ftdi, struct libusb_device *dev);
421 int ftdi_usb_open_string(struct ftdi_context *ftdi, const char* description);
422
423 int ftdi_usb_close(struct ftdi_context *ftdi);
424 int ftdi_usb_reset(struct ftdi_context *ftdi);
425 int ftdi_usb_purge_rx_buffer(struct ftdi_context *ftdi);
426 int ftdi_usb_purge_tx_buffer(struct ftdi_context *ftdi);
427 int ftdi_usb_purge_buffers(struct ftdi_context *ftdi);
428
429 int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate);
430 int ftdi_set_line_property(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
431 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity);
432 int ftdi_set_line_property2(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
433 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity,
434 enum ftdi_break_type break_type);
435
436 int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
437 int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
438 int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
439
440 int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
441 int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
442 int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
443
444 int ftdi_readstream(struct ftdi_context *ftdi, FTDIStreamCallback *callback,
445 void *userdata, int packetsPerTransfer, int numTransfers);
446 int ftdi_write_data_async(struct ftdi_context *ftdi, unsigned char *buf, int size);
447 void ftdi_async_complete(struct ftdi_context *ftdi, int wait_for_more);
448
449 struct ftdi_transfer_control *ftdi_read_data_submit(struct ftdi_context *ftdi, unsigned char *buf, int size);
450 int ftdi_transfer_data_done(struct ftdi_transfer_control *tc);
451
452 int DEPRECATED(ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask));
453 int ftdi_disable_bitbang(struct ftdi_context *ftdi);
454 int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode);
455 int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins);
456
457 int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency);
458 int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency);
459
460 int ftdi_poll_modem_status(struct ftdi_context *ftdi, unsigned short *status);
461
462 /* flow control */
463 int ftdi_setflowctrl(struct ftdi_context *ftdi, int flowctrl);
464 int ftdi_setdtr_rts(struct ftdi_context *ftdi, int dtr, int rts);
465 int ftdi_setdtr(struct ftdi_context *ftdi, int state);
466 int ftdi_setrts(struct ftdi_context *ftdi, int state);
467
468 int ftdi_set_event_char(struct ftdi_context *ftdi, unsigned char eventch, unsigned char enable);
469 int ftdi_set_error_char(struct ftdi_context *ftdi, unsigned char errorch, unsigned char enable);
470
471 /* set eeprom size */
472 void ftdi_eeprom_setsize(struct ftdi_context *ftdi, struct ftdi_eeprom *eeprom, int size);
473
474 /* init and build eeprom from ftdi_eeprom structure */
475 void ftdi_eeprom_initdefaults(struct ftdi_context *ftdi);
476 void ftdi_eeprom_free(struct ftdi_context *ftdi);
477 int ftdi_eeprom_build(struct ftdi_context *ftdi, unsigned char *output);
478 int ftdi_eeprom_decode(struct ftdi_context *ftdi, unsigned char *output, int size, int verbose);
479
480 /* "eeprom" needs to be valid 128 byte eeprom (generated by the eeprom generator)
481 the checksum of the eeprom is valided */
482 int ftdi_read_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom);
483 int ftdi_read_chipid(struct ftdi_context *ftdi, unsigned int *chipid);
484 int ftdi_write_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom);
485 int ftdi_erase_eeprom(struct ftdi_context *ftdi);
486
487 int ftdi_read_eeprom_location (struct ftdi_context *ftdi, int eeprom_addr, unsigned short *eeprom_val);
488 int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr, unsigned short eeprom_val);
489
490 char *ftdi_get_error_string(struct ftdi_context *ftdi);
491
492#ifdef __cplusplus
493}
494#endif
495
496#endif /* __libftdi_h__ */
A library to talk to FTDI chips