1 /***************************************************************************
5 copyright : (C) 2003 by Intra2net AG
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 #define FTDI_DEFAULT_EEPROM_SIZE 128
25 enum 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() */
27 enum ftdi_parity_type { NONE=0, ODD=1, EVEN=2, MARK=3, SPACE=4 };
28 /** Number of stop bits for ftdi_set_line_property() */
29 enum ftdi_stopbits_type { STOP_BIT_1=0, STOP_BIT_15=1, STOP_BIT_2=2 };
30 /** Number of bits for ftdi_set_line_property() */
31 enum ftdi_bits_type { BITS_7=7, BITS_8=8 };
32 /** Break type for ftdi_set_line_property2() */
33 enum ftdi_break_type { BREAK_OFF=0, BREAK_ON=1 };
35 /** MPSSE bitbang modes */
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 */
49 /** Port interface for chips with multiple interfaces */
59 /** Automatic loading / unloading of kernel modules */
60 enum ftdi_module_detach_mode
62 AUTO_DETACH_SIO_MODULE = 0,
63 DONT_DETACH_SIO_MODULE = 1
66 /* Shifting commands IN MPSSE Mode*/
67 #define MPSSE_WRITE_NEG 0x01 /* Write TDI/DO on negative TCK/SK edge*/
68 #define MPSSE_BITMODE 0x02 /* Write bits, not bytes */
69 #define MPSSE_READ_NEG 0x04 /* Sample TDO/DI on negative TCK/SK edge */
70 #define MPSSE_LSB 0x08 /* LSB first */
71 #define MPSSE_DO_WRITE 0x10 /* Write TDI/DO */
72 #define MPSSE_DO_READ 0x20 /* Read TDO/DI */
73 #define MPSSE_WRITE_TMS 0x40 /* Write TMS/CS */
75 /* FTDI MPSSE commands */
76 #define SET_BITS_LOW 0x80
79 #define SET_BITS_HIGH 0x82
82 #define GET_BITS_LOW 0x81
83 #define GET_BITS_HIGH 0x83
84 #define LOOPBACK_START 0x84
85 #define LOOPBACK_END 0x85
86 #define TCK_DIVISOR 0x86
88 /* Value HIGH */ /*rate is 12000000/((1+value)*2) */
89 #define DIV_VALUE(rate) (rate > 6000000)?0:((6000000/rate -1) > 0xffff)? 0xffff: (6000000/rate -1)
91 /* Commands in MPSSE and Host Emulation Mode */
92 #define SEND_IMMEDIATE 0x87
93 #define WAIT_ON_HIGH 0x88
94 #define WAIT_ON_LOW 0x89
96 /* Commands in Host Emulation Mode */
97 #define READ_SHORT 0x90
99 #define READ_EXTENDED 0x91
102 #define WRITE_SHORT 0x92
104 #define WRITE_EXTENDED 0x93
108 /* Definitions for flow control */
109 #define SIO_RESET 0 /* Reset the port */
110 #define SIO_MODEM_CTRL 1 /* Set the modem control register */
111 #define SIO_SET_FLOW_CTRL 2 /* Set flow control register */
112 #define SIO_SET_BAUD_RATE 3 /* Set baud rate */
113 #define SIO_SET_DATA 4 /* Set the data characteristics of the port */
115 #define FTDI_DEVICE_OUT_REQTYPE (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT)
116 #define FTDI_DEVICE_IN_REQTYPE (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN)
119 #define SIO_RESET_REQUEST SIO_RESET
120 #define SIO_SET_BAUDRATE_REQUEST SIO_SET_BAUD_RATE
121 #define SIO_SET_DATA_REQUEST SIO_SET_DATA
122 #define SIO_SET_FLOW_CTRL_REQUEST SIO_SET_FLOW_CTRL
123 #define SIO_SET_MODEM_CTRL_REQUEST SIO_MODEM_CTRL
124 #define SIO_POLL_MODEM_STATUS_REQUEST 0x05
125 #define SIO_SET_EVENT_CHAR_REQUEST 0x06
126 #define SIO_SET_ERROR_CHAR_REQUEST 0x07
127 #define SIO_SET_LATENCY_TIMER_REQUEST 0x09
128 #define SIO_GET_LATENCY_TIMER_REQUEST 0x0A
129 #define SIO_SET_BITMODE_REQUEST 0x0B
130 #define SIO_READ_PINS_REQUEST 0x0C
131 #define SIO_READ_EEPROM_REQUEST 0x90
132 #define SIO_WRITE_EEPROM_REQUEST 0x91
133 #define SIO_ERASE_EEPROM_REQUEST 0x92
136 #define SIO_RESET_SIO 0
137 #define SIO_RESET_PURGE_RX 1
138 #define SIO_RESET_PURGE_TX 2
140 #define SIO_DISABLE_FLOW_CTRL 0x0
141 #define SIO_RTS_CTS_HS (0x1 << 8)
142 #define SIO_DTR_DSR_HS (0x2 << 8)
143 #define SIO_XON_XOFF_HS (0x4 << 8)
145 #define SIO_SET_DTR_MASK 0x1
146 #define SIO_SET_DTR_HIGH ( 1 | ( SIO_SET_DTR_MASK << 8))
147 #define SIO_SET_DTR_LOW ( 0 | ( SIO_SET_DTR_MASK << 8))
148 #define SIO_SET_RTS_MASK 0x2
149 #define SIO_SET_RTS_HIGH ( 2 | ( SIO_SET_RTS_MASK << 8 ))
150 #define SIO_SET_RTS_LOW ( 0 | ( SIO_SET_RTS_MASK << 8 ))
152 #define SIO_RTS_CTS_HS (0x1 << 8)
154 /* marker for unused usb urb structures
155 (taken from libusb) */
156 #define FTDI_URB_USERCONTEXT_COOKIE ((void *)0x1)
159 #define DEPRECATED(func) func __attribute__ ((deprecated))
160 #elif defined(_MSC_VER)
161 #define DEPRECATED(func) __declspec(deprecated) func
163 #pragma message("WARNING: You need to implement DEPRECATED for this compiler")
164 #define DEPRECATED(func) func
169 \brief Main context structure for all libftdi functions.
171 Do not access directly if possible.
176 /** libusb's usb_dev_handle */
177 struct usb_dev_handle *usb_dev;
178 /** usb read timeout */
179 int usb_read_timeout;
180 /** usb write timeout */
181 int usb_write_timeout;
184 /** FTDI chip type */
185 enum ftdi_chip_type type;
188 /** bitbang mode state */
189 unsigned char bitbang_enabled;
190 /** pointer to read buffer for ftdi_read_data */
191 unsigned char *readbuffer;
192 /** read buffer offset */
193 unsigned int readbuffer_offset;
194 /** number of remaining data in internal read buffer */
195 unsigned int readbuffer_remaining;
196 /** read buffer chunk size */
197 unsigned int readbuffer_chunksize;
198 /** write buffer chunk size */
199 unsigned int writebuffer_chunksize;
200 /** maximum packet size. Needed for filtering modem status bytes every n packets. */
201 unsigned int max_packet_size;
203 /* FTDI FT2232C requirecments */
204 /** FT2232C interface number: 0 or 1 */
205 int interface; /* 0 or 1 */
206 /** FT2232C index number: 1 or 2 */
207 int index; /* 1 or 2 */
209 /** FT2232C end points: 1 or 2 */
211 int out_ep; /* 1 or 2 */
213 /** Bitbang mode. 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode */
214 unsigned char bitbang_mode;
216 /** EEPROM size. Default is 128 bytes for 232BM and 245BM chips */
219 /** String representation of last error */
222 /** Buffer needed for async communication */
223 char *async_usb_buffer;
224 /** Number of URB-structures we can buffer */
225 unsigned int async_usb_buffer_size;
227 /** Defines behavior in case a kernel module is already attached to the device */
228 enum ftdi_module_detach_mode module_detach_mode;
232 \brief list of usb devices created by ftdi_usb_find_all()
234 struct ftdi_device_list
236 /** pointer to next entry */
237 struct ftdi_device_list *next;
238 /** pointer to libusb's usb_device */
239 struct usb_device *dev;
251 /** RXLED# & TXLED# */
252 #define CBUS_TXRXLED 4
263 /** Bitbang IO Mode*/
264 #define CBUS_IOMODE 10
266 #define CBUS_BB_WR 11
268 #define CBUS_BB_RD 12
272 #define INVERT_TXD 0x01
274 #define INVERT_RXD 0x02
276 #define INVERT_RTS 0x04
278 #define INVERT_CTS 0x08
280 #define INVERT_DTR 0x10
282 #define INVERT_DSR 0x20
284 #define INVERT_DCD 0x40
286 #define INVERT_RI 0x80
288 /** High current drive. */
289 #define HIGH_CURRENT_DRIVE 0x04
292 \brief FTDI eeprom structure
308 /** input in isochronous transfer mode */
309 int in_is_isochronous;
310 /** output in isochronous transfer mode */
311 int out_is_isochronous;
312 /** suspend pull downs */
313 int suspend_pull_downs;
317 /** fake usb version */
318 int change_usb_version;
324 /** manufacturer name */
331 /* Special function of FT232R devices (and possibly others as well) */
332 /** CBUS pin function. See CBUS_xxx defines. */
333 int cbus_function[5];
334 /** Select hight current drive. */
336 /** Select inversion of data lines (bitmask). */
339 /** eeprom size in bytes. This doesn't get stored in the eeprom
340 but is the only way to pass it to ftdi_eeprom_build. */
349 int ftdi_init(struct ftdi_context *ftdi);
350 struct ftdi_context *ftdi_new(void);
351 int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface);
353 void ftdi_deinit(struct ftdi_context *ftdi);
354 void ftdi_free(struct ftdi_context *ftdi);
355 void ftdi_set_usbdev (struct ftdi_context *ftdi, usb_dev_handle *usbdev);
357 int ftdi_usb_find_all(struct ftdi_context *ftdi, struct ftdi_device_list **devlist,
358 int vendor, int product);
359 void ftdi_list_free(struct ftdi_device_list **devlist);
360 void ftdi_list_free2(struct ftdi_device_list *devlist);
361 int ftdi_usb_get_strings(struct ftdi_context *ftdi, struct usb_device *dev,
362 char * manufacturer, int mnf_len,
363 char * description, int desc_len,
364 char * serial, int serial_len);
366 int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product);
367 int ftdi_usb_open_desc(struct ftdi_context *ftdi, int vendor, int product,
368 const char* description, const char* serial);
369 int ftdi_usb_open_desc_index(struct ftdi_context *ftdi, int vendor, int product,
370 const char* description, const char* serial, unsigned int index);
371 int ftdi_usb_open_dev(struct ftdi_context *ftdi, struct usb_device *dev);
372 int ftdi_usb_open_string(struct ftdi_context *ftdi, const char* description);
374 int ftdi_usb_close(struct ftdi_context *ftdi);
375 int ftdi_usb_reset(struct ftdi_context *ftdi);
376 int ftdi_usb_purge_rx_buffer(struct ftdi_context *ftdi);
377 int ftdi_usb_purge_tx_buffer(struct ftdi_context *ftdi);
378 int ftdi_usb_purge_buffers(struct ftdi_context *ftdi);
380 int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate);
381 int ftdi_set_line_property(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
382 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity);
383 int ftdi_set_line_property2(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
384 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity,
385 enum ftdi_break_type break_type);
387 int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
388 int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
389 int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
391 int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
392 int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
393 int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
395 int ftdi_write_data_async(struct ftdi_context *ftdi, unsigned char *buf, int size);
396 void ftdi_async_complete(struct ftdi_context *ftdi, int wait_for_more);
398 int DEPRECATED(ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask));
399 int ftdi_disable_bitbang(struct ftdi_context *ftdi);
400 int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode);
401 int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins);
403 int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency);
404 int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency);
406 int ftdi_poll_modem_status(struct ftdi_context *ftdi, unsigned short *status);
409 int ftdi_setflowctrl(struct ftdi_context *ftdi, int flowctrl);
410 int ftdi_setdtr_rts(struct ftdi_context *ftdi, int dtr, int rts);
411 int ftdi_setdtr(struct ftdi_context *ftdi, int state);
412 int ftdi_setrts(struct ftdi_context *ftdi, int state);
414 int ftdi_set_event_char(struct ftdi_context *ftdi, unsigned char eventch, unsigned char enable);
415 int ftdi_set_error_char(struct ftdi_context *ftdi, unsigned char errorch, unsigned char enable);
417 /* set eeprom size */
418 void ftdi_eeprom_setsize(struct ftdi_context *ftdi, struct ftdi_eeprom *eeprom, int size);
420 /* init and build eeprom from ftdi_eeprom structure */
421 void ftdi_eeprom_initdefaults(struct ftdi_eeprom *eeprom);
422 void ftdi_eeprom_free(struct ftdi_eeprom *eeprom);
423 int ftdi_eeprom_build(struct ftdi_eeprom *eeprom, unsigned char *output);
424 int ftdi_eeprom_decode(struct ftdi_eeprom *eeprom, unsigned char *output, int size);
426 /* "eeprom" needs to be valid 128 byte eeprom (generated by the eeprom generator)
427 the checksum of the eeprom is valided */
428 int ftdi_read_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom);
429 int ftdi_read_chipid(struct ftdi_context *ftdi, unsigned int *chipid);
430 int ftdi_read_eeprom_getsize(struct ftdi_context *ftdi, unsigned char *eeprom, int maxsize);
431 int ftdi_write_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom);
432 int ftdi_erase_eeprom(struct ftdi_context *ftdi);
434 int ftdi_read_eeprom_location (struct ftdi_context *ftdi, int eeprom_addr, unsigned short *eeprom_val);
435 int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr, unsigned short eeprom_val);
437 char *ftdi_get_error_string(struct ftdi_context *ftdi);
443 #endif /* __libftdi_h__ */