| | 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 | /* libusb header */ |
| | 21 | #include <usb.h> |
| | 22 | |
| | 23 | /* Kernel USB headers */ |
| | 24 | #include <linux/usb.h> |
| | 25 | #include <linux/usbdevice_fs.h> |
| | 26 | |
| | 27 | /* Keep this in sync with libusb */ |
| | 28 | struct usb_dev_handle { |
| | 29 | int fd; |
| | 30 | |
| | 31 | struct usb_bus *bus; |
| | 32 | struct usb_device *device; |
| | 33 | |
| | 34 | int config; |
| | 35 | int interface; |
| | 36 | int altsetting; |
| | 37 | |
| | 38 | /* Added by RMT so implementations can store other per-open-device data */ |
| | 39 | void *impl_info; |
| | 40 | }; |
| | 41 | |
| | 42 | |
| | 43 | enum ftdi_chip_type { TYPE_AM=0, TYPE_BM=1, TYPE_2232C=2 }; |
| | 44 | |
| | 45 | struct ftdi_context { |
| | 46 | // USB specific |
| | 47 | struct usb_dev_handle *usb_dev; |
| | 48 | int usb_read_timeout; |
| | 49 | int usb_write_timeout; |
| | 50 | struct usbdevfs_urb *urb; |
| | 51 | |
| | 52 | // FTDI specific |
| | 53 | enum ftdi_chip_type type; |
| | 54 | int baudrate; |
| | 55 | unsigned char bitbang_enabled; |
| | 56 | unsigned char *readbuffer; |
| | 57 | unsigned int readbuffer_offset; |
| | 58 | unsigned int readbuffer_remaining; |
| | 59 | unsigned int readbuffer_chunksize; |
| | 60 | unsigned int writebuffer_chunksize; |
| | 61 | |
| | 62 | // FTDI FT2232C requirecments |
| | 63 | int interface; // 0 or 1 |
| | 64 | int index; // 1 or 2 |
| | 65 | // Endpoints |
| | 66 | int in_ep; |
| | 67 | int out_ep; // 1 or 2 |
| | 68 | |
| | 69 | /* 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode */ |
| | 70 | unsigned char bitbang_mode; |
| | 71 | |
| | 72 | // misc |
| | 73 | char *error_str; |
| | 74 | }; |
| | 75 | |
| | 76 | struct ftdi_eeprom { |
| | 77 | int vendor_id; |
| | 78 | int product_id; |
| | 79 | |
| | 80 | int self_powered; |
| | 81 | int remote_wakeup; |
| | 82 | int BM_type_chip; |
| | 83 | |
| | 84 | int in_is_isochronous; |
| | 85 | int out_is_isochronous; |
| | 86 | int suspend_pull_downs; |
| | 87 | |
| | 88 | int use_serial; |
| | 89 | int change_usb_version; |
| | 90 | int usb_version; |
| | 91 | int max_power; |
| | 92 | |
| | 93 | char *manufacturer; |
| | 94 | char *product; |
| | 95 | char *serial; |
| | 96 | }; |
| | 97 | |
| | 98 | #ifdef __cplusplus |
| | 99 | extern "C" { |
| | 100 | #endif |
| | 101 | |
| | 102 | int ftdi_init(struct ftdi_context *ftdi); |
| | 103 | void ftdi_deinit(struct ftdi_context *ftdi); |
| | 104 | void ftdi_set_usbdev (struct ftdi_context *ftdi, usb_dev_handle *usbdev); |
| | 105 | int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product); |
| | 106 | int ftdi_usb_close(struct ftdi_context *ftdi); |
| | 107 | int ftdi_usb_reset(struct ftdi_context *ftdi); |
| | 108 | int ftdi_usb_purge_buffers(struct ftdi_context *ftdi); |
| | 109 | |
| | 110 | int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate); |
| | 111 | |
| | 112 | int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size); |
| | 113 | int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize); |
| | 114 | int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize); |
| | 115 | |
| | 116 | int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size); |
| | 117 | int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize); |
| | 118 | int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize); |
| | 119 | |
| | 120 | int ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask); |
| | 121 | int ftdi_disable_bitbang(struct ftdi_context *ftdi); |
| | 122 | int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins); |
| | 123 | |
| | 124 | int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency); |
| | 125 | int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency); |
| | 126 | |
| | 127 | /* init and build eeprom from ftdi_eeprom structure */ |
| | 128 | void ftdi_eeprom_initdefaults(struct ftdi_eeprom *eeprom); |
| | 129 | int ftdi_eeprom_build(struct ftdi_eeprom *eeprom, unsigned char *output); |
| | 130 | |
| | 131 | /* "eeprom" needs to be valid 128 byte eeprom (generated by the eeprom generator) |
| | 132 | the checksum of the eeprom is valided */ |
| | 133 | int ftdi_read_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom); |
| | 134 | int ftdi_write_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom); |
| | 135 | int ftdi_erase_eeprom(struct ftdi_context *ftdi); |
| | 136 | |
| | 137 | #ifdef __cplusplus |
| | 138 | } |
| | 139 | #endif |
| | 140 | |
| | 141 | #endif /* __libftdi_h__ */ |
git://developer.intra2net.com / libftdi / blame_incremental