Added new read/write_eeprom_location to C++ wrapper
[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
5fdb1cb1 6 email : opensource@intra2net.com
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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
98452d97 20#include <usb.h>
0e302db6 21
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22#define FTDI_DEFAULT_EEPROM_SIZE 128
23
91c9886b 24/** FTDI chip type */
0beb9686 25enum ftdi_chip_type { TYPE_AM=0, TYPE_BM=1, TYPE_2232C=2, TYPE_R=3, TYPE_2232H=4, TYPE_4232H=5 };
91c9886b 26/** Parity mode for ftdi_set_line_property() */
2f73e59f 27enum ftdi_parity_type { NONE=0, ODD=1, EVEN=2, MARK=3, SPACE=4 };
91c9886b 28/** Number of stop bits for ftdi_set_line_property() */
2f73e59f 29enum ftdi_stopbits_type { STOP_BIT_1=0, STOP_BIT_15=1, STOP_BIT_2=2 };
91c9886b 30/** Number of bits for ftdi_set_line_property() */
2f73e59f 31enum ftdi_bits_type { BITS_7=7, BITS_8=8 };
91c9886b 32/** Break type for ftdi_set_line_property2() */
6c32e222 33enum ftdi_break_type { BREAK_OFF=0, BREAK_ON=1 };
2f73e59f 34
91c9886b 35/** MPSSE bitbang modes */
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36enum ftdi_mpsse_mode
37{
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38 BITMODE_RESET = 0x00,
39 BITMODE_BITBANG= 0x01,
40 BITMODE_MPSSE = 0x02,
41 BITMODE_SYNCBB = 0x04,
42 BITMODE_MCU = 0x08,
91c9886b 43 /* CPU-style fifo mode gets set via EEPROM */
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44 BITMODE_OPTO = 0x10,
45 BITMODE_CBUS = 0x20
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46};
47
91c9886b 48/** Port interface for FT2232C */
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49enum ftdi_interface
50{
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51 INTERFACE_ANY = 0,
52 INTERFACE_A = 1,
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53 INTERFACE_B = 2,
54 INTERFACE_C = 3,
55 INTERFACE_D = 4
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56};
57
58/* Shifting commands IN MPSSE Mode*/
59#define MPSSE_WRITE_NEG 0x01 /* Write TDI/DO on negative TCK/SK edge*/
60#define MPSSE_BITMODE 0x02 /* Write bits, not bytes */
61#define MPSSE_READ_NEG 0x04 /* Sample TDO/DI on negative TCK/SK edge */
62#define MPSSE_LSB 0x08 /* LSB first */
63#define MPSSE_DO_WRITE 0x10 /* Write TDI/DO */
64#define MPSSE_DO_READ 0x20 /* Read TDO/DI */
65#define MPSSE_WRITE_TMS 0x40 /* Write TMS/CS */
66
67/* FTDI MPSSE commands */
68#define SET_BITS_LOW 0x80
69/*BYTE DATA*/
70/*BYTE Direction*/
71#define SET_BITS_HIGH 0x82
72/*BYTE DATA*/
73/*BYTE Direction*/
74#define GET_BITS_LOW 0x81
75#define GET_BITS_HIGH 0x83
76#define LOOPBACK_START 0x84
77#define LOOPBACK_END 0x85
78#define TCK_DIVISOR 0x86
79/* Value Low */
80/* Value HIGH */ /*rate is 12000000/((1+value)*2) */
81#define DIV_VALUE(rate) (rate > 6000000)?0:((6000000/rate -1) > 0xffff)? 0xffff: (6000000/rate -1)
82
83/* Commands in MPSSE and Host Emulation Mode */
22d12cda 84#define SEND_IMMEDIATE 0x87
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85#define WAIT_ON_HIGH 0x88
86#define WAIT_ON_LOW 0x89
87
88/* Commands in Host Emulation Mode */
89#define READ_SHORT 0x90
90/* Address_Low */
91#define READ_EXTENDED 0x91
92/* Address High */
93/* Address Low */
94#define WRITE_SHORT 0x92
95/* Address_Low */
96#define WRITE_EXTENDED 0x93
97/* Address High */
98/* Address Low */
53ad271d 99
a01d31e2 100/* Definitions for flow control */
9ecfef2a 101#define SIO_RESET 0 /* Reset the port */
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102#define SIO_MODEM_CTRL 1 /* Set the modem control register */
103#define SIO_SET_FLOW_CTRL 2 /* Set flow control register */
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104#define SIO_SET_BAUD_RATE 3 /* Set baud rate */
105#define SIO_SET_DATA 4 /* Set the data characteristics of the port */
106
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107#define FTDI_DEVICE_OUT_REQTYPE (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT)
108#define FTDI_DEVICE_IN_REQTYPE (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN)
109
110/* Requests */
111#define SIO_RESET_REQUEST SIO_RESET
112#define SIO_SET_BAUDRATE_REQUEST SIO_SET_BAUD_RATE
113#define SIO_SET_DATA_REQUEST SIO_SET_DATA
114#define SIO_SET_FLOW_CTRL_REQUEST SIO_SET_FLOW_CTRL
115#define SIO_SET_MODEM_CTRL_REQUEST SIO_MODEM_CTRL
116#define SIO_POLL_MODEM_STATUS_REQUEST 0x05
117#define SIO_SET_EVENT_CHAR_REQUEST 0x06
118#define SIO_SET_ERROR_CHAR_REQUEST 0x07
119#define SIO_SET_LATENCY_TIMER_REQUEST 0x09
120#define SIO_GET_LATENCY_TIMER_REQUEST 0x0A
121#define SIO_SET_BITMODE_REQUEST 0x0B
122#define SIO_READ_PINS_REQUEST 0x0C
123#define SIO_READ_EEPROM_REQUEST 0x90
124#define SIO_WRITE_EEPROM_REQUEST 0x91
125#define SIO_ERASE_EEPROM_REQUEST 0x92
126
127
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128#define SIO_RESET_SIO 0
129#define SIO_RESET_PURGE_RX 1
130#define SIO_RESET_PURGE_TX 2
131
22d12cda 132#define SIO_DISABLE_FLOW_CTRL 0x0
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133#define SIO_RTS_CTS_HS (0x1 << 8)
134#define SIO_DTR_DSR_HS (0x2 << 8)
135#define SIO_XON_XOFF_HS (0x4 << 8)
136
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137#define SIO_SET_DTR_MASK 0x1
138#define SIO_SET_DTR_HIGH ( 1 | ( SIO_SET_DTR_MASK << 8))
139#define SIO_SET_DTR_LOW ( 0 | ( SIO_SET_DTR_MASK << 8))
140#define SIO_SET_RTS_MASK 0x2
141#define SIO_SET_RTS_HIGH ( 2 | ( SIO_SET_RTS_MASK << 8 ))
142#define SIO_SET_RTS_LOW ( 0 | ( SIO_SET_RTS_MASK << 8 ))
143
144#define SIO_RTS_CTS_HS (0x1 << 8)
145
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146/* marker for unused usb urb structures
147 (taken from libusb) */
148#define FTDI_URB_USERCONTEXT_COOKIE ((void *)0x1)
149
9bec2387 150/**
b5ec1820 151 \brief Main context structure for all libftdi functions.
a01d31e2 152
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153 Do not access directly if possible.
154*/
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155struct ftdi_context
156{
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157 /* USB specific */
158 /** libusb's usb_dev_handle */
98452d97 159 struct usb_dev_handle *usb_dev;
91c9886b 160 /** usb read timeout */
545820ce 161 int usb_read_timeout;
91c9886b 162 /** usb write timeout */
545820ce 163 int usb_write_timeout;
a3da1d95 164
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165 /* FTDI specific */
166 /** FTDI chip type */
53ad271d 167 enum ftdi_chip_type type;
91c9886b 168 /** baudrate */
a3da1d95 169 int baudrate;
91c9886b 170 /** bitbang mode state */
a3da1d95 171 unsigned char bitbang_enabled;
91c9886b 172 /** pointer to read buffer for ftdi_read_data */
948f9ada 173 unsigned char *readbuffer;
91c9886b 174 /** read buffer offset */
4ece2c24 175 unsigned int readbuffer_offset;
91c9886b 176 /** number of remaining data in internal read buffer */
4ece2c24 177 unsigned int readbuffer_remaining;
91c9886b 178 /** read buffer chunk size */
948f9ada 179 unsigned int readbuffer_chunksize;
91c9886b 180 /** write buffer chunk size */
948f9ada 181 unsigned int writebuffer_chunksize;
d9f0cce7 182
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183 /* FTDI FT2232C requirecments */
184 /** FT2232C interface number: 0 or 1 */
185 int interface; /* 0 or 1 */
186 /** FT2232C index number: 1 or 2 */
187 int index; /* 1 or 2 */
188 /* Endpoints */
189 /** FT2232C end points: 1 or 2 */
545820ce 190 int in_ep;
91c9886b 191 int out_ep; /* 1 or 2 */
c3d95b87 192
91c9886b 193 /** Bitbang mode. 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode */
3119537f 194 unsigned char bitbang_mode;
545820ce 195
91c9886b 196 /** EEPROM size. Default is 128 bytes for 232BM and 245BM chips */
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197 int eeprom_size;
198
91c9886b 199 /** String representation of last error */
a3da1d95 200 char *error_str;
7cc9950e 201
91c9886b 202 /** Buffer needed for async communication */
7cc9950e 203 char *async_usb_buffer;
91c9886b 204 /** Number of URB-structures we can buffer */
7cc9950e 205 unsigned int async_usb_buffer_size;
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206};
207
9bec2387 208/**
b5ec1820 209 \brief list of usb devices created by ftdi_usb_find_all()
9bec2387 210*/
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211struct ftdi_device_list
212{
91c9886b 213 /** pointer to next entry */
edb82cbf 214 struct ftdi_device_list *next;
91c9886b 215 /** pointer to libusb's usb_device */
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216 struct usb_device *dev;
217};
218
9bec2387 219/**
b5ec1820 220 \brief FTDI eeprom structure
9bec2387 221*/
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222struct ftdi_eeprom
223{
91c9886b 224 /** vendor id */
d9f0cce7 225 int vendor_id;
91c9886b 226 /** product id */
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227 int product_id;
228
91c9886b 229 /** self powered */
d9f0cce7 230 int self_powered;
4af1d1bb 231 /** remote wakeup */
b8aa7b35 232 int remote_wakeup;
91c9886b 233 /** chip type */
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234 int BM_type_chip;
235
91c9886b 236 /** input in isochronous transfer mode */
b8aa7b35 237 int in_is_isochronous;
91c9886b 238 /** output in isochronous transfer mode */
b8aa7b35 239 int out_is_isochronous;
91c9886b 240 /** suspend pull downs */
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241 int suspend_pull_downs;
242
91c9886b 243 /** use serial */
b8aa7b35 244 int use_serial;
91c9886b 245 /** fake usb version */
b8aa7b35 246 int change_usb_version;
91c9886b 247 /** usb version */
b8aa7b35 248 int usb_version;
91c9886b 249 /** maximum power */
b8aa7b35 250 int max_power;
d9f0cce7 251
91c9886b 252 /** manufacturer name */
b8aa7b35 253 char *manufacturer;
91c9886b 254 /** product name */
b8aa7b35 255 char *product;
91c9886b 256 /** serial number */
b8aa7b35 257 char *serial;
c201f80f 258
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259 /** eeprom size in bytes. This doesn't get stored in the eeprom
260 but is the only way to pass it to ftdi_eeprom_build. */
261 int size;
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262};
263
a3da1d95 264#ifdef __cplusplus
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265extern "C"
266{
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267#endif
268
269 int ftdi_init(struct ftdi_context *ftdi);
672ac008 270 struct ftdi_context *ftdi_new(void);
0ce2f5fa 271 int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface);
c4446c36 272
948f9ada 273 void ftdi_deinit(struct ftdi_context *ftdi);
cef378aa 274 void ftdi_free(struct ftdi_context *ftdi);
98452d97 275 void ftdi_set_usbdev (struct ftdi_context *ftdi, usb_dev_handle *usbdev);
a01d31e2 276
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277 int ftdi_usb_find_all(struct ftdi_context *ftdi, struct ftdi_device_list **devlist,
278 int vendor, int product);
279 void ftdi_list_free(struct ftdi_device_list **devlist);
cef378aa 280 void ftdi_list_free2(struct ftdi_device_list *devlist);
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281 int ftdi_usb_get_strings(struct ftdi_context *ftdi, struct usb_device *dev,
282 char * manufacturer, int mnf_len,
283 char * description, int desc_len,
284 char * serial, int serial_len);
a01d31e2 285
a3da1d95 286 int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product);
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287 int ftdi_usb_open_desc(struct ftdi_context *ftdi, int vendor, int product,
288 const char* description, const char* serial);
edb82cbf 289 int ftdi_usb_open_dev(struct ftdi_context *ftdi, struct usb_device *dev);
1941414d 290
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291 int ftdi_usb_close(struct ftdi_context *ftdi);
292 int ftdi_usb_reset(struct ftdi_context *ftdi);
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293 int ftdi_usb_purge_rx_buffer(struct ftdi_context *ftdi);
294 int ftdi_usb_purge_tx_buffer(struct ftdi_context *ftdi);
a60be878 295 int ftdi_usb_purge_buffers(struct ftdi_context *ftdi);
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296
297 int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate);
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298 int ftdi_set_line_property(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
299 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity);
6c32e222 300 int ftdi_set_line_property2(struct ftdi_context *ftdi, enum ftdi_bits_type bits,
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301 enum ftdi_stopbits_type sbit, enum ftdi_parity_type parity,
302 enum ftdi_break_type break_type);
948f9ada 303
be5d7eec 304 int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
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305 int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
306 int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
307
308 int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
309 int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
310 int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
a3da1d95 311
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312 int ftdi_write_data_async(struct ftdi_context *ftdi, unsigned char *buf, int size);
313 void ftdi_async_complete(struct ftdi_context *ftdi, int wait_for_more);
314
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315 int ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask);
316 int ftdi_disable_bitbang(struct ftdi_context *ftdi);
c4446c36 317 int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode);
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318 int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins);
319
320 int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency);
321 int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency);
322
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323 int ftdi_poll_modem_status(struct ftdi_context *ftdi, unsigned short *status);
324
91c9886b 325 /* flow control */
a7fb8440 326 int ftdi_setflowctrl(struct ftdi_context *ftdi, int flowctrl);
9ecfef2a 327 int ftdi_setdtr_rts(struct ftdi_context *ftdi, int dtr, int rts);
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328 int ftdi_setdtr(struct ftdi_context *ftdi, int state);
329 int ftdi_setrts(struct ftdi_context *ftdi, int state);
330
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331 int ftdi_set_event_char(struct ftdi_context *ftdi, unsigned char eventch, unsigned char enable);
332 int ftdi_set_error_char(struct ftdi_context *ftdi, unsigned char errorch, unsigned char enable);
333
91c9886b 334 /* set eeprom size */
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335 void ftdi_eeprom_setsize(struct ftdi_context *ftdi, struct ftdi_eeprom *eeprom, int size);
336
91c9886b 337 /* init and build eeprom from ftdi_eeprom structure */
b8aa7b35 338 void ftdi_eeprom_initdefaults(struct ftdi_eeprom *eeprom);
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339 int ftdi_eeprom_build(struct ftdi_eeprom *eeprom, unsigned char *output);
340 int ftdi_eeprom_decode(struct ftdi_eeprom *eeprom, unsigned char *output, int size);
b8aa7b35 341
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342 /* "eeprom" needs to be valid 128 byte eeprom (generated by the eeprom generator)
343 the checksum of the eeprom is valided */
be5d7eec 344 int ftdi_read_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom);
cb6250fa 345 int ftdi_read_chipid(struct ftdi_context *ftdi, unsigned int *chipid);
c201f80f 346 int ftdi_read_eeprom_getsize(struct ftdi_context *ftdi, unsigned char *eeprom, int maxsize);
be5d7eec 347 int ftdi_write_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom);
b8aa7b35 348 int ftdi_erase_eeprom(struct ftdi_context *ftdi);
a3da1d95 349
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350 int ftdi_read_eeprom_location (struct ftdi_context *ftdi, int eeprom_addr, unsigned short *eeprom_val);
351 int ftdi_write_eeprom_location(struct ftdi_context *ftdi, int eeprom_addr, unsigned short eeprom_val);
352
c3d95b87 353 char *ftdi_get_error_string(struct ftdi_context *ftdi);
c1c70e13 354
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355#ifdef __cplusplus
356}
357#endif
358
359#endif /* __libftdi_h__ */