src/target/etb.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 /***************************************************************************
   4  *   Copyright (C) 2007 by Dominic Rath                                    *
   5  *   Dominic.Rath@gmx.de                                                   *
   6  ***************************************************************************/
   7
   8 #ifndef OPENOCD_TARGET_ETB_H
   9 #define OPENOCD_TARGET_ETB_H
  10
  11 /* ETB registers */
  12 enum {
  13         ETB_ID = 0x00,
  14         ETB_RAM_DEPTH = 0x01,
  15         ETB_RAM_WIDTH = 0x02,
  16         ETB_STATUS = 0x03,
  17         ETB_RAM_DATA = 0x04,
  18         ETB_RAM_READ_POINTER = 0x05,
  19         ETB_RAM_WRITE_POINTER = 0x06,
  20         ETB_TRIGGER_COUNTER = 0x07,
  21         ETB_CTRL = 0x08,
  22 };
  23
  24 struct etb {
  25         struct etm_context *etm_ctx;
  26         struct jtag_tap *tap;
  27         uint32_t cur_scan_chain;
  28         struct reg_cache *reg_cache;
  29
  30         /* ETB parameters */
  31         uint32_t ram_depth;
  32         uint32_t ram_width;
  33
  34         /** how much trace buffer to fill after trigger */
  35         unsigned trigger_percent;
  36 };
  37
  38 struct etb_reg {
  39         uint32_t addr;
  40         struct etb *etb;
  41 };
  42
  43 extern struct etm_capture_driver etb_capture_driver;
  44
  45 struct reg_cache *etb_build_reg_cache(struct etb *etb);
  46
  47 #endif /* OPENOCD_TARGET_ETB_H */