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 ***************************************************************************/
20 #include <sys/types.h>
23 /* Kernel USB headers */
24 #include <linux/usb.h>
25 #include <linux/usbdevice_fs.h>
27 enum ftdi_chip_type { TYPE_AM=0, TYPE_BM=1, TYPE_2232C=2 };
33 int usb_write_timeout;
34 struct usbdevfs_urb *urb;
37 enum ftdi_chip_type type;
39 unsigned char bitbang_enabled;
40 unsigned char *readbuffer;
41 unsigned int readbuffer_offset;
42 unsigned int readbuffer_remaining;
43 unsigned int readbuffer_chunksize;
44 unsigned int writebuffer_chunksize;
46 // FTDI FT2232C requirecments
47 int interface; // 0 or 1
53 /* 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode */
54 unsigned char bitbang_mode;
68 int in_is_isochronous;
69 int out_is_isochronous;
70 int suspend_pull_downs;
73 int change_usb_version;
86 int ftdi_init(struct ftdi_context *ftdi);
87 void ftdi_deinit(struct ftdi_context *ftdi);
88 int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product);
89 int ftdi_usb_close(struct ftdi_context *ftdi);
90 int ftdi_usb_reset(struct ftdi_context *ftdi);
91 int ftdi_usb_purge_buffers(struct ftdi_context *ftdi);
93 int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate);
95 int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
96 int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
97 int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
99 int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size);
100 int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize);
101 int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize);
103 int ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask);
104 int ftdi_disable_bitbang(struct ftdi_context *ftdi);
105 int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins);
107 int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency);
108 int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency);
110 /* init and build eeprom from ftdi_eeprom structure */
111 void ftdi_eeprom_initdefaults(struct ftdi_eeprom *eeprom);
112 int ftdi_eeprom_build(struct ftdi_eeprom *eeprom, unsigned char *output);
114 /* "eeprom" needs to be valid 128 byte eeprom (generated by the eeprom generator)
115 the checksum of the eeprom is valided */
116 int ftdi_read_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom);
117 int ftdi_write_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom);
118 int ftdi_erase_eeprom(struct ftdi_context *ftdi);
124 #endif /* __libftdi_h__ */