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a3da1d95 GE |
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 |
a3da1d95 GE |
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 | |
de22df10 | 22 | enum ftdi_chip_type { TYPE_AM=0, TYPE_BM=1, TYPE_2232C=2 }; |
c4446c36 TJ |
23 | enum ftdi_mpsse_mode { |
24 | BITMODE_RESET = 0x00, | |
25 | BITMODE_BITBANG= 0x01, | |
26 | BITMODE_MPSSE = 0x02, | |
27 | BITMODE_SYNCBB = 0x04, | |
28 | BITMODE_MCU = 0x08, | |
29 | BITMODE_OPTO = 0x10 | |
30 | }; | |
31 | ||
32 | /* Port interface code for FT2232C */ | |
33 | enum ftdi_interface { | |
34 | INTERFACE_ANY = 0, | |
35 | INTERFACE_A = 1, | |
36 | INTERFACE_B = 2 | |
37 | }; | |
38 | ||
39 | /* Shifting commands IN MPSSE Mode*/ | |
40 | #define MPSSE_WRITE_NEG 0x01 /* Write TDI/DO on negative TCK/SK edge*/ | |
41 | #define MPSSE_BITMODE 0x02 /* Write bits, not bytes */ | |
42 | #define MPSSE_READ_NEG 0x04 /* Sample TDO/DI on negative TCK/SK edge */ | |
43 | #define MPSSE_LSB 0x08 /* LSB first */ | |
44 | #define MPSSE_DO_WRITE 0x10 /* Write TDI/DO */ | |
45 | #define MPSSE_DO_READ 0x20 /* Read TDO/DI */ | |
46 | #define MPSSE_WRITE_TMS 0x40 /* Write TMS/CS */ | |
47 | ||
48 | /* FTDI MPSSE commands */ | |
49 | #define SET_BITS_LOW 0x80 | |
50 | /*BYTE DATA*/ | |
51 | /*BYTE Direction*/ | |
52 | #define SET_BITS_HIGH 0x82 | |
53 | /*BYTE DATA*/ | |
54 | /*BYTE Direction*/ | |
55 | #define GET_BITS_LOW 0x81 | |
56 | #define GET_BITS_HIGH 0x83 | |
57 | #define LOOPBACK_START 0x84 | |
58 | #define LOOPBACK_END 0x85 | |
59 | #define TCK_DIVISOR 0x86 | |
60 | /* Value Low */ | |
61 | /* Value HIGH */ /*rate is 12000000/((1+value)*2) */ | |
62 | #define DIV_VALUE(rate) (rate > 6000000)?0:((6000000/rate -1) > 0xffff)? 0xffff: (6000000/rate -1) | |
63 | ||
64 | /* Commands in MPSSE and Host Emulation Mode */ | |
65 | #define SEND_IMMEDIATE 0x87 | |
66 | #define WAIT_ON_HIGH 0x88 | |
67 | #define WAIT_ON_LOW 0x89 | |
68 | ||
69 | /* Commands in Host Emulation Mode */ | |
70 | #define READ_SHORT 0x90 | |
71 | /* Address_Low */ | |
72 | #define READ_EXTENDED 0x91 | |
73 | /* Address High */ | |
74 | /* Address Low */ | |
75 | #define WRITE_SHORT 0x92 | |
76 | /* Address_Low */ | |
77 | #define WRITE_EXTENDED 0x93 | |
78 | /* Address High */ | |
79 | /* Address Low */ | |
53ad271d | 80 | |
a3da1d95 GE |
81 | struct ftdi_context { |
82 | // USB specific | |
98452d97 | 83 | struct usb_dev_handle *usb_dev; |
545820ce TJ |
84 | int usb_read_timeout; |
85 | int usb_write_timeout; | |
a3da1d95 GE |
86 | |
87 | // FTDI specific | |
53ad271d | 88 | enum ftdi_chip_type type; |
a3da1d95 GE |
89 | int baudrate; |
90 | unsigned char bitbang_enabled; | |
948f9ada | 91 | unsigned char *readbuffer; |
4ece2c24 TJ |
92 | unsigned int readbuffer_offset; |
93 | unsigned int readbuffer_remaining; | |
948f9ada TJ |
94 | unsigned int readbuffer_chunksize; |
95 | unsigned int writebuffer_chunksize; | |
d9f0cce7 | 96 | |
545820ce TJ |
97 | // FTDI FT2232C requirecments |
98 | int interface; // 0 or 1 | |
99 | int index; // 1 or 2 | |
100 | // Endpoints | |
101 | int in_ep; | |
102 | int out_ep; // 1 or 2 | |
c3d95b87 | 103 | |
3119537f TJ |
104 | /* 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode */ |
105 | unsigned char bitbang_mode; | |
545820ce | 106 | |
a3da1d95 GE |
107 | // misc |
108 | char *error_str; | |
109 | }; | |
110 | ||
b8aa7b35 | 111 | struct ftdi_eeprom { |
d9f0cce7 | 112 | int vendor_id; |
b8aa7b35 TJ |
113 | int product_id; |
114 | ||
d9f0cce7 | 115 | int self_powered; |
b8aa7b35 TJ |
116 | int remote_wakeup; |
117 | int BM_type_chip; | |
118 | ||
119 | int in_is_isochronous; | |
120 | int out_is_isochronous; | |
121 | int suspend_pull_downs; | |
122 | ||
123 | int use_serial; | |
124 | int change_usb_version; | |
125 | int usb_version; | |
126 | int max_power; | |
d9f0cce7 | 127 | |
b8aa7b35 TJ |
128 | char *manufacturer; |
129 | char *product; | |
130 | char *serial; | |
131 | }; | |
132 | ||
a3da1d95 GE |
133 | #ifdef __cplusplus |
134 | extern "C" { | |
135 | #endif | |
136 | ||
137 | int ftdi_init(struct ftdi_context *ftdi); | |
0ce2f5fa | 138 | int ftdi_set_interface(struct ftdi_context *ftdi, enum ftdi_interface interface); |
c4446c36 | 139 | |
948f9ada | 140 | void ftdi_deinit(struct ftdi_context *ftdi); |
98452d97 | 141 | void ftdi_set_usbdev (struct ftdi_context *ftdi, usb_dev_handle *usbdev); |
a3da1d95 | 142 | int ftdi_usb_open(struct ftdi_context *ftdi, int vendor, int product); |
a8f46ddc TJ |
143 | int ftdi_usb_open_desc(struct ftdi_context *ftdi, int vendor, int product, |
144 | const char* description, const char* serial); | |
a3da1d95 GE |
145 | int ftdi_usb_close(struct ftdi_context *ftdi); |
146 | int ftdi_usb_reset(struct ftdi_context *ftdi); | |
a60be878 | 147 | int ftdi_usb_purge_buffers(struct ftdi_context *ftdi); |
a3da1d95 GE |
148 | |
149 | int ftdi_set_baudrate(struct ftdi_context *ftdi, int baudrate); | |
948f9ada | 150 | |
be5d7eec | 151 | int ftdi_read_data(struct ftdi_context *ftdi, unsigned char *buf, int size); |
948f9ada TJ |
152 | int ftdi_read_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize); |
153 | int ftdi_read_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize); | |
154 | ||
155 | int ftdi_write_data(struct ftdi_context *ftdi, unsigned char *buf, int size); | |
156 | int ftdi_write_data_set_chunksize(struct ftdi_context *ftdi, unsigned int chunksize); | |
157 | int ftdi_write_data_get_chunksize(struct ftdi_context *ftdi, unsigned int *chunksize); | |
a3da1d95 GE |
158 | |
159 | int ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask); | |
160 | int ftdi_disable_bitbang(struct ftdi_context *ftdi); | |
c4446c36 | 161 | int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode); |
a3da1d95 GE |
162 | int ftdi_read_pins(struct ftdi_context *ftdi, unsigned char *pins); |
163 | ||
164 | int ftdi_set_latency_timer(struct ftdi_context *ftdi, unsigned char latency); | |
165 | int ftdi_get_latency_timer(struct ftdi_context *ftdi, unsigned char *latency); | |
166 | ||
98452d97 | 167 | // init and build eeprom from ftdi_eeprom structure |
b8aa7b35 TJ |
168 | void ftdi_eeprom_initdefaults(struct ftdi_eeprom *eeprom); |
169 | int ftdi_eeprom_build(struct ftdi_eeprom *eeprom, unsigned char *output); | |
170 | ||
98452d97 TJ |
171 | // "eeprom" needs to be valid 128 byte eeprom (generated by the eeprom generator) |
172 | // the checksum of the eeprom is valided | |
be5d7eec TJ |
173 | int ftdi_read_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom); |
174 | int ftdi_write_eeprom(struct ftdi_context *ftdi, unsigned char *eeprom); | |
b8aa7b35 | 175 | int ftdi_erase_eeprom(struct ftdi_context *ftdi); |
a3da1d95 | 176 | |
c3d95b87 TJ |
177 | char *ftdi_get_error_string(struct ftdi_context *ftdi); |
178 | ||
a3da1d95 GE |
179 | #ifdef __cplusplus |
180 | } | |
181 | #endif | |
182 | ||
183 | #endif /* __libftdi_h__ */ |