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  1. /*
  2. * Driver for USB-JTAG, Altera USB-Blaster and compatibles
  3. *
  4. * Inspired from original code from Kolja Waschk's USB-JTAG project
  5. * (http://www.ixo.de/info/usb_jtag/), and from openocd project.
  6. *
  7. * Copyright (C) 2013 Franck Jullien franck.jullien@gmail.com
  8. * Copyright (C) 2012 Robert Jarzmik robert.jarzmik@free.fr
  9. * Copyright (C) 2011 Ali Lown ali@lown.me.uk
  10. * Copyright (C) 2009 Catalin Patulea cat@vv.carleton.ca
  11. * Copyright (C) 2006 Kolja Waschk usbjtag@ixo.de
  12. *
  13. * This program is free software; you can redistribute it and/or modify
  14. * it under the terms of the GNU General Public License as published by
  15. * the Free Software Foundation; either version 2 of the License, or
  16. * (at your option) any later version.
  17. *
  18. * This program is distributed in the hope that it will be useful,
  19. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  21. * GNU General Public License for more details.
  22. *
  23. * You should have received a copy of the GNU General Public License
  24. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  25. *
  26. */
  27. #ifndef OPENOCD_JTAG_DRIVERS_USB_BLASTER_UBLAST_ACCESS_H
  28. #define OPENOCD_JTAG_DRIVERS_USB_BLASTER_UBLAST_ACCESS_H
  29. #include <libusb_common.h>
  30. /* Low level flags */
  31. #define COPY_TDO_BUFFER (1 << 0)
  32. struct ublast_lowlevel {
  33. uint16_t ublast_vid;
  34. uint16_t ublast_pid;
  35. uint16_t ublast_vid_uninit;
  36. uint16_t ublast_pid_uninit;
  37. char *ublast_device_desc;
  38. struct jtag_libusb_device_handle *libusb_dev;
  39. char *firmware_path;
  40. int (*write)(struct ublast_lowlevel *low, uint8_t *buf, int size,
  41. uint32_t *bytes_written);
  42. int (*read)(struct ublast_lowlevel *low, uint8_t *buf, unsigned size,
  43. uint32_t *bytes_read);
  44. int (*open)(struct ublast_lowlevel *low);
  45. int (*close)(struct ublast_lowlevel *low);
  46. int (*speed)(struct ublast_lowlevel *low, int speed);
  47. void *priv;
  48. int flags;
  49. };
  50. /**
  51. * ublast_register_ftdi - get a lowlevel USB Blaster driver
  52. * ublast2_register_libusb - get a lowlevel USB Blaster II driver
  53. *
  54. * Get a lowlevel USB-Blaster driver. In the current implementation, there are 2
  55. * possible lowlevel drivers :
  56. * - one based on libftdi,
  57. * - one based on libusb, specific to the USB-Blaster II
  58. *
  59. * Returns the lowlevel driver structure.
  60. */
  61. extern struct ublast_lowlevel *ublast_register_ftdi(void);
  62. extern struct ublast_lowlevel *ublast2_register_libusb(void);
  63. #endif /* OPENOCD_JTAG_DRIVERS_USB_BLASTER_UBLAST_ACCESS_H */