1 /***************************************************************************
5 copyright : (C) 2003-2011 by Intra2net AG and the libftdi developers
6 email : opensource@intra2net.com
7 ***************************************************************************/
9 /***************************************************************************
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; *
15 ***************************************************************************/
22 /* Even on 93xx66 at max 256 bytes are used (AN_121)*/
23 #define FTDI_MAX_EEPROM_SIZE 256
26 enum ftdi_chip_type { TYPE_AM=0, TYPE_BM=1, TYPE_2232C=2, TYPE_R=3, TYPE_2232H=4, TYPE_4232H=5, TYPE_232H=6 };
27 /** Parity mode for ftdi_set_line_property() */
28 enum ftdi_parity_type { NONE=0, ODD=1, EVEN=2, MARK=3, SPACE=4 };
29 /** Number of stop bits for ftdi_set_line_property() */
30 enum ftdi_stopbits_type { STOP_BIT_1=0, STOP_BIT_15=1, STOP_BIT_2=2 };
31 /** Number of bits for ftdi_set_line_property() */
32 enum ftdi_bits_type { BITS_7=7, BITS_8=8 };
33 /** Break type for ftdi_set_line_property2() */
34 enum ftdi_break_type { BREAK_OFF=0, BREAK_ON=1 };
36 /** MPSSE bitbang modes */
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 */
50 /** Port interface for chips with multiple interfaces */
60 /** Automatic loading / unloading of kernel modules */
61 enum ftdi_module_detach_mode
63 AUTO_DETACH_SIO_MODULE = 0,
64 DONT_DETACH_SIO_MODULE = 1
67 /* Shifting commands IN MPSSE Mode*/
68 #define MPSSE_WRITE_NEG 0x01 /* Write TDI/DO on negative TCK/SK edge*/
69 #define MPSSE_BITMODE 0x02 /* Write bits, not bytes */
70 #define MPSSE_READ_NEG 0x04 /* Sample TDO/DI on negative TCK/SK edge */
71 #define MPSSE_LSB 0x08 /* LSB first */
72 #define MPSSE_DO_WRITE 0x10 /* Write TDI/DO */
73 #define MPSSE_DO_READ 0x20 /* Read TDO/DI */
74 #define MPSSE_WRITE_TMS 0x40 /* Write TMS/CS */
76 /* FTDI MPSSE commands */
77 #define SET_BITS_LOW 0x80
80 #define SET_BITS_HIGH 0x82
83 #define GET_BITS_LOW 0x81
84 #define GET_BITS_HIGH 0x83
85 #define LOOPBACK_START 0x84
86 #define LOOPBACK_END 0x85
87 #define TCK_DIVISOR 0x86
88 /* H Type specific commands */
89 #define DIS_DIV_5 0x8a
91 #define EN_3_PHASE 0x8c
92 #define DIS_3_PHASE 0x8d
94 #define CLK_BYTES 0x8f
95 #define CLK_WAIT_HIGH 0x94
96 #define CLK_WAIT_LOW 0x95
97 #define EN_ADAPTIVE 0x96
98 #define DIS_ADAPTIVE 0x97
99 #define CLK_BYTES_OR_HIGH 0x9c
100 #define CLK_BYTES_OR_LOW 0x0d
101 /*FT232H specific commands */
102 #define DRIVE_OPEN_COLLECTOR 0x9e
104 /* Value HIGH */ /*rate is 12000000/((1+value)*2) */
105 #define DIV_VALUE(rate) (rate > 6000000)?0:((6000000/rate -1) > 0xffff)? 0xffff: (6000000/rate -1)
107 /* Commands in MPSSE and Host Emulation Mode */
108 #define SEND_IMMEDIATE 0x87
109 #define WAIT_ON_HIGH 0x88
110 #define WAIT_ON_LOW 0x89
112 /* Commands in Host Emulation Mode */
113 #define READ_SHORT 0x90
115 #define READ_EXTENDED 0x91
118 #define WRITE_SHORT 0x92
120 #define WRITE_EXTENDED 0x93
124 /* Definitions for flow control */
125 #define SIO_RESET 0 /* Reset the port */
126 #define SIO_MODEM_CTRL 1 /* Set the modem control register */
127 #define SIO_SET_FLOW_CTRL 2 /* Set flow control register */
128 #define SIO_SET_BAUD_RATE 3 /* Set baud rate */
129 #define SIO_SET_DATA 4 /* Set the data characteristics of the port */
131 #define FTDI_DEVICE_OUT_REQTYPE (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_OUT)
132 #define FTDI_DEVICE_IN_REQTYPE (LIBUSB_REQUEST_TYPE_VENDOR | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_IN)
135 #define SIO_RESET_REQUEST SIO_RESET
136 #define SIO_SET_BAUDRATE_REQUEST SIO_SET_BAUD_RATE
137 #define SIO_SET_DATA_REQUEST SIO_SET_DATA
138 #define SIO_SET_FLOW_CTRL_REQUEST SIO_SET_FLOW_CTRL
139 #define SIO_SET_MODEM_CTRL_REQUEST SIO_MODEM_CTRL
140 #define SIO_POLL_MODEM_STATUS_REQUEST 0x05
141 #define SIO_SET_EVENT_CHAR_REQUEST 0x06
142 #define SIO_SET_ERROR_CHAR_REQUEST 0x07
143 #define SIO_SET_LATENCY_TIMER_REQUEST 0x09
144 #define SIO_GET_LATENCY_TIMER_REQUEST 0x0A
145 #define SIO_SET_BITMODE_REQUEST 0x0B
146 #define SIO_READ_PINS_REQUEST 0x0C
147 #define SIO_READ_EEPROM_REQUEST 0x90
148 #define SIO_WRITE_EEPROM_REQUEST 0x91
149 #define SIO_ERASE_EEPROM_REQUEST 0x92
152 #define SIO_RESET_SIO 0
153 #define SIO_RESET_PURGE_RX 1
154 #define SIO_RESET_PURGE_TX 2
156 #define SIO_DISABLE_FLOW_CTRL 0x0
157 #define SIO_RTS_CTS_HS (0x1 << 8)
158 #define SIO_DTR_DSR_HS (0x2 << 8)
159 #define SIO_XON_XOFF_HS (0x4 << 8)
161 #define SIO_SET_DTR_MASK 0x1
162 #define SIO_SET_DTR_HIGH ( 1 | ( SIO_SET_DTR_MASK << 8))
163 #define SIO_SET_DTR_LOW ( 0 | ( SIO_SET_DTR_MASK << 8))
164 #define SIO_SET_RTS_MASK 0x2
165 #define SIO_SET_RTS_HIGH ( 2 | ( SIO_SET_RTS_MASK << 8 ))
166 #define SIO_SET_RTS_LOW ( 0 | ( SIO_SET_RTS_MASK << 8 ))
168 #define SIO_RTS_CTS_HS (0x1 << 8)
170 /* marker for unused usb urb structures
171 (taken from libusb) */
172 #define FTDI_URB_USERCONTEXT_COOKIE ((void *)0x1)
175 #define DEPRECATED(func) func __attribute__ ((deprecated))
176 #elif defined(_MSC_VER)
177 #define DEPRECATED(func) __declspec(deprecated) func
179 #pragma message("WARNING: You need to implement DEPRECATED for this compiler")
180 #define DEPRECATED(func) func
183 struct ftdi_transfer_control
189 struct ftdi_context *ftdi;
190 struct libusb_transfer *transfer;
194 \brief FTDI eeprom structure
210 /* Suspend on DBUS7 Low */
213 /** input in isochronous transfer mode */
214 int in_is_isochronous;
215 /** output in isochronous transfer mode */
216 int out_is_isochronous;
217 /** suspend pull downs */
218 int suspend_pull_downs;
224 /** Use usb version on FT2232 devices*/
229 /** manufacturer name */
236 /* 2232D/H(/FT4432H?) specific */
237 /* Hardware type, 0 = RS232 Uart, 1 = 245 FIFO, 2 = CPU FIFO,
241 /* Driver Type, 1 = VCP */
242 int channel_a_driver;
243 int channel_b_driver;
245 /* Special function of FT232R/FT232H devices (and possibly others as well) */
246 /** CBUS pin function. See CBUS_xxx defines. */
247 int cbus_function[9];
248 /** Select hight current drive on R devices. */
250 /** Select hight current drive on A channel (2232C */
252 /** Select hight current drive on B channel (2232C). */
254 /** Select inversion of data lines (bitmask). */
257 /*2232H/4432H Group specific values */
258 /* Group0 is AL on 2322H and A on 4232H
259 Group1 is AH on 2232H and B on 4232H
260 Group2 is BL on 2322H and C on 4232H
261 Group3 is BH on 2232H and C on 4232H*/
281 /** eeprom size in bytes. This doesn't get stored in the eeprom
282 but is the only way to pass it to ftdi_eeprom_build. */
284 /* EEPROM Type 0x46 for 93xx46, 0x56 for 93xx56 and 0x66 for 93xx66*/
286 unsigned char buf[FTDI_MAX_EEPROM_SIZE];
290 \brief Main context structure for all libftdi functions.
292 Do not access directly if possible.
297 /** libusb's context */
298 struct libusb_context *usb_ctx;
299 /** libusb's usb_dev_handle */
300 struct libusb_device_handle *usb_dev;
301 /** usb read timeout */
302 int usb_read_timeout;
303 /** usb write timeout */
304 int usb_write_timeout;
307 /** FTDI chip type */
308 enum ftdi_chip_type type;
311 /** bitbang mode state */
312 unsigned char bitbang_enabled;
313 /** pointer to read buffer for ftdi_read_data */
314 unsigned char *readbuffer;
315 /** read buffer offset */
316 unsigned int readbuffer_offset;
317 /** number of remaining data in internal read buffer */
318 unsigned int readbuffer_remaining;
319 /** read buffer chunk size */
320 unsigned int readbuffer_chunksize;
321 /** write buffer chunk size */
322 unsigned int writebuffer_chunksize;
323 /** maximum packet size. Needed for filtering modem status bytes every n packets. */
324 unsigned int max_packet_size;
326 /* FTDI FT2232C requirecments */
327 /** FT2232C interface number: 0 or 1 */
328 int interface; /* 0 or 1 */
329 /** FT2232C index number: 1 or 2 */
330 int index; /* 1 or 2 */
332 /** FT2232C end points: 1 or 2 */
334 int out_ep; /* 1 or 2 */
336 /** Bitbang mode. 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode */
337 unsigned char bitbang_mode;
339 /** Decoded eeprom structure */
340 struct ftdi_eeprom *eeprom;
342 /** String representation of last error */
345 /** Defines behavior in case a kernel module is already attached to the device */
346 enum ftdi_module_detach_mode module_detach_mode;
350 List all handled EEPROM values.
351 Append future new values only at the end to provide API/ABI stability*/
352 enum ftdi_eeprom_value
360 IN_IS_ISOCHRONOUS = 6,
361 OUT_IS_ISOCHRONOUS = 7,
362 SUSPEND_PULL_DOWNS = 8,
365 USE_USB_VERSION = 11,
369 CHANNEL_A_DRIVER = 15,
370 CHANNEL_B_DRIVER = 16,
371 CBUS_FUNCTION_0 = 17,
372 CBUS_FUNCTION_1 = 18,
373 CBUS_FUNCTION_2 = 19,
374 CBUS_FUNCTION_3 = 20,
375 CBUS_FUNCTION_4 = 21,
376 CBUS_FUNCTION_5 = 22,
377 CBUS_FUNCTION_6 = 23,
378 CBUS_FUNCTION_7 = 24,
379 CBUS_FUNCTION_8 = 25,
380 CBUS_FUNCTION_9 = 26,
406 \brief list of usb devices created by ftdi_usb_find_all()
408 struct ftdi_device_list
410 /** pointer to next entry */
411 struct ftdi_device_list *next;
412 /** pointer to libusb's usb_device */
413 struct libusb_device *dev;
415 #define FT1284_CLK_IDLE_STATE 0x01
416 #define FT1284_DATA_LSB 0x02
417 #define FT1284_FLOW_CONTROL 0x04
418 #define POWER_SAVE_DISABLE_H 0x80
420 #define USE_SERIAL_NUM 0x08
421 enum ftdi_cbus_func {/* FIXME: Recheck value, especially the last */
422 CBUS_TXDEN = 0, CBUS_PWREN = 1, CBUS_RXLED = 2, CBUS_TXLED = 3, CBUS_TXRXLED = 4,
423 CBUS_SLEEP = 5, CBUS_CLK48 = 6, CBUS_CLK24 = 7, CBUS_CLK12 = 8, CBUS_CLK6 = 9,
424 CBUS_IOMODE = 0xa, CBUS_BB_WR = 0xb, CBUS_BB_RD = 0xc, CBUS_BB = 0xd};
426 enum ftdi_cbush_func {/* FIXME: Recheck value, especially the last */
427 CBUSH_TRISTATE = 0, CBUSH_RXLED = 1, CBUSH_TXLED = 2, CBUSH_TXRXLED = 3, CBUSH_PWREN = 4,
428 CBUSH_SLEEP = 5, CBUSH_DRIVE_0 = 6, CBUSG_DRIVE1 = 7, CBUSH_IOMODE = 8, CBUSH_TXDEN = 9,
429 CBUSH_CLK30 = 0xa, CBUSH_CLK15 = 0xb, CBUSH_CLK7_5 = 0xc};
432 #define INVERT_TXD 0x01
434 #define INVERT_RXD 0x02
436 #define INVERT_RTS 0x04
438 #define INVERT_CTS 0x08
440 #define INVERT_DTR 0x10
442 #define INVERT_DSR 0x20
444 #define INVERT_DCD 0x40
446 #define INVERT_RI 0x80
448 /** Interface Mode. */
449 #define CHANNEL_IS_UART 0x0
450 #define CHANNEL_IS_245 0x1
451 #define CHANNEL_IS_CPU 0x2
452 #define CHANNEL_IS_OPTO 0x4
462 #define DRIVER_VCP 0x08
463 #define DRIVER_VCPH 0x10 /* FT232H has moved the VCP bit */
465 #define USE_USB_VERSION_BIT 0x10
467 #define SUSPEND_DBUS7_BIT 0x80
469 /** High current drive. */
470 #define HIGH_CURRENT_DRIVE 0x10
471 #define HIGH_CURRENT_DRIVE_R 0x04
474 \brief Progress Info for streaming read
484 struct size_and_time first;
485 struct size_and_time prev;
486 struct size_and_time current;
492 typedef int (FTDIStreamCallback)(uint8_t *buffer, int length,
493 FTDIProgressInfo *progress, void *userdata);
501 int ftdi_init(struct ftdi_context *ftdi);
502 struct ftdi_context *ftdi_new(void);
503 int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface);
505 void ftdi_deinit(struct ftdi_context *ftdi);
506 void ftdi_free(struct ftdi_context *ftdi);
507 void ftdi_set_usbdev (struct ftdi_context *ftdi, struct libusb_device_handle *usbdev);
509 int ftdi_usb_find_all(struct ftdi_context *ftdi, struct ftdi_device_list **devlist,
510 int vendor, int product);
511 void ftdi_list_free(struct ftdi_device_list **devlist);
512 void ftdi_list_free2(struct ftdi_device_list *devlist);
513 int ftdi_usb_get_strings(struct ftdi_context *ftdi, struct libusb_device *dev,
514 char * manufacturer, int mnf_len,
515 char * description, int desc_len,
516 char * serial, int serial_len);
518 int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product);
519 int ftdi_usb_open_desc(struct ftdi_context *ftdi, int vendor, int product,
520 const char* description, const char* serial);
521 int ftdi_usb_open_desc_index(struct ftdi_context *ftdi, int vendor, int product,
522 const char* description, const char* serial, unsigned int index);
523 int ftdi_usb_open_dev(struct ftdi_context *ftdi, struct libusb_device *dev);
524 int ftdi_usb_open_string(struct ftdi_context *ftdi, const char* description);
526 int ftdi_usb_close(struct ftdi_context *ftdi);
527 int ftdi_usb_reset(struct ftdi_context *ftdi);
528 int ftdi_usb_purge_rx_buffer(struct ftdi_context *ftdi);
529 int ftdi_usb_purge_tx_buffer(struct ftdi_context *ftdi);
530 int ftdi_usb_purge_buffers(struct ftdi_context *ftdi);
532 int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate);
533 int ftdi_set_line_property(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
534 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity);
535 int ftdi_set_line_property2(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
536 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity,
537 enum ftdi_break_type break_type);
539 int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
540 int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
541 int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
543 int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
544 int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
545 int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
547 int ftdi_readstream(struct ftdi_context *ftdi, FTDIStreamCallback *callback,
548 void *userdata, int packetsPerTransfer, int numTransfers);
549 int ftdi_write_data_async(struct ftdi_context *ftdi, unsigned char *buf, int size);
550 void ftdi_async_complete(struct ftdi_context *ftdi, int wait_for_more);
552 struct ftdi_transfer_control *ftdi_read_data_submit(struct ftdi_context *ftdi, unsigned char *buf, int size);
553 int ftdi_transfer_data_done(struct ftdi_transfer_control *tc);
555 int DEPRECATED(ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask));
556 int ftdi_disable_bitbang(struct ftdi_context *ftdi);
557 int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode);
558 int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins);
560 int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency);
561 int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency);
563 int ftdi_poll_modem_status(struct ftdi_context *ftdi, unsigned short *status);
566 int ftdi_setflowctrl(struct ftdi_context *ftdi, int flowctrl);
567 int ftdi_setdtr_rts(struct ftdi_context *ftdi, int dtr, int rts);
568 int ftdi_setdtr(struct ftdi_context *ftdi, int state);
569 int ftdi_setrts(struct ftdi_context *ftdi, int state);
571 int ftdi_set_event_char(struct ftdi_context *ftdi, unsigned char eventch, unsigned char enable);
572 int ftdi_set_error_char(struct ftdi_context *ftdi, unsigned char errorch, unsigned char enable);
574 /* init eeprom for the given FTDI type */
575 int ftdi_eeprom_initdefaults(struct ftdi_context *ftdi,
576 char * manufacturer, char *product,
578 int ftdi_eeprom_build(struct ftdi_context *ftdi);
579 int ftdi_eeprom_decode(struct ftdi_context *ftdi, int verbose);
581 int ftdi_get_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int* value);
582 int ftdi_set_eeprom_value(struct ftdi_context *ftdi, enum ftdi_eeprom_value value_name, int value);
584 int ftdi_get_eeprom_buf(struct ftdi_context *ftdi, unsigned char * buf, int size);
586 int ftdi_read_eeprom(struct ftdi_context *ftdi);
587 int ftdi_read_chipid(struct ftdi_context *ftdi, unsigned int *chipid);
588 int ftdi_write_eeprom(struct ftdi_context *ftdi);
589 int ftdi_erase_eeprom(struct ftdi_context *ftdi);
591 int ftdi_read_eeprom_location (struct ftdi_context *ftdi, int eeprom_addr, unsigned short *eeprom_val);
592 int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr, unsigned short eeprom_val);
594 char *ftdi_get_error_string(struct ftdi_context *ftdi);
600 #endif /* __libftdi_h__ */