1 /* JTAG low-level I/O to DLC9(10?) cables 2 3 Using I2C addresses above 0x80 in the USRP/XGUFF framework 4 5 Copyright (C) 2005-2011 Uwe Bonnes bon@elektron.ikp.physik.tu-darmstadt.de 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 22 #ifndef IOXPC_H 23 #define IOXPC_H 24 25 #include <usb.h> 26 27 #include "iobase.h" 28 29 #define XPC_VENDOR 0x03fd 30 #define XPC_DEVICE 0x0008 31 32 #define XPC_INTERNAL 1 33 34 #define XPC_PROG (1<<3) 35 #define XPC_TCK (1<<2) 36 #define XPC_TMS (1<<1) 37 #define XPC_TDI (1<<0) 38 #define XPC_TDO (1<<0) 39 40 /* 41 * send max 4096 bytes to CPLD 42 * this is equal to 8192 TDI plus 8192 TDO bits 43 */ 44 #define CPLD_MAX_BYTES (1<<12) 45 46 /* 47 * Buffer has to hold 8192 bits for write, each 2 bytes hold 4 bits for write, so this has to be 4096 48 * Buffer has to hold 8192 bits for read, each byte holds 8 bits for read, so this has to be 1024 49 * Therefore, buffer size -> CPLD_MAX_BYTES 50 */ 51 typedef struct 52 { 53 int in_bits; 54 int out_bits; 55 int out_done; 56 unsigned char *out; 57 unsigned char buf[CPLD_MAX_BYTES]; 58 } 59 xpc_ext_transfer_state_t; 60 61 62 class IOXPC : public IOBase 63 { 64 protected: 65 int bptr, calls_rd, calls_wr, call_ctrl; 66 int subtype; 67 unsigned long long hid; 68 FILE *fp_dbg; 69 70 public: 71 IOXPC(); 72 int Init(struct cable_t *cable, char const *serial, unsigned int freq); 73 ~IOXPC(); 74 75 void txrx_block(const unsigned char *tdi, unsigned char *tdo, int length, bool last); 76 void tx_tms(unsigned char *pat, int length, int force); 77 78 private: 79 struct usb_dev_handle *xpcu; 80 /// String representation of last error 81 const char *error_str; 82 int xpcu_output_enable(struct usb_dev_handle *xpcu, int enable); 83 int xpcu_request_28(struct usb_dev_handle *xpcu, int value); 84 int xpcu_write_gpio(struct usb_dev_handle *xpcu, unsigned char bits); 85 int xpcu_read_gpio(struct usb_dev_handle *xpcu, unsigned char *bits); 86 int xpcu_read_cpld_version(struct usb_dev_handle *xpcu, unsigned char *buf); 87 int xpcu_read_hid(struct usb_dev_handle *xpcu); 88 int xpcu_read_firmware_version(struct usb_dev_handle *xpcu, unsigned char *buf); 89 int xpcu_select_gpio(struct usb_dev_handle *xpcu, int int_or_ext ); 90 int xpcu_shift(struct usb_dev_handle *xpcu, int reqno, int bits, int in_len, unsigned char *in, int out_len, unsigned char *out ); 91 void xpcu_add_bit_for_ext_transfer( xpc_ext_transfer_state_t *xts, bool in, bool tms, bool is_real ); 92 int xpcu_do_ext_transfer( xpc_ext_transfer_state_t *xts ); 93 94 int xpc_usb_open_desc(int vendor, int product, const char* description, unsigned long long int serial); 95 bool xpc_close_interface (struct usb_dev_handle *udh); 96 }; 97 98 #endif // IOXPC_H 99