src/target/dsp563xx_once.c

   1 /***************************************************************************
   2  *   Copyright (C) 2009 by Mathias Kuester                                 *
   3  *   mkdorg@users.sourceforge.net                                          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include <helper/jim.h>
  25
  26 #include "target.h"
  27 #include "target_type.h"
  28 #include "register.h"
  29 #include "dsp563xx.h"
  30 #include "dsp563xx_once.h"
  31
  32 /** single word instruction */
  33 static int dsp563xx_once_ir_exec(struct jtag_tap *tap, uint8_t instr, uint8_t rw,
  34                           uint8_t go, uint8_t ex)
  35 {
  36         dsp563xx_write_dr_u8(tap, 0,
  37                              instr | (ex << 5) | (go << 6) | (rw << 7), 8, 0);
  38         dsp563xx_execute_queue();
  39
  40         return ERROR_OK;
  41 }
  42
  43 /** single word instruction */
  44 static int dsp563xx_once_ir_exec_nq(struct jtag_tap *tap, uint8_t instr, uint8_t rw,
  45                              uint8_t go, uint8_t ex)
  46 {
  47         dsp563xx_write_dr_u8(tap, 0,
  48                              instr | (ex << 5) | (go << 6) | (rw << 7), 8, 0);
  49
  50         return ERROR_OK;
  51 }
  52
  53 /** once read register */
  54 int dsp563xx_once_reg_read(struct jtag_tap *tap, uint8_t reg, uint32_t * data)
  55 {
  56         uint32_t dr_in;
  57
  58         dr_in = 0;
  59
  60         dsp563xx_once_ir_exec(tap, reg, 1, 0, 0);
  61         dsp563xx_write_dr_u32(tap, &dr_in, 0x00, 24, 0);
  62         dsp563xx_execute_queue();
  63
  64         *data = dr_in;
  65
  66         return ERROR_OK;
  67 }
  68
  69 /** once write register */
  70 int dsp563xx_once_reg_write(struct jtag_tap *tap, uint8_t reg, uint32_t data)
  71 {
  72         dsp563xx_once_ir_exec(tap, reg, 0, 0, 0);
  73         dsp563xx_write_dr_u32(tap, 0x00, data, 24, 0);
  74         dsp563xx_execute_queue();
  75
  76         return ERROR_OK;
  77 }
  78
  79 /** single word instruction */
  80 int dsp563xx_once_execute_sw_ir(struct jtag_tap *tap, uint32_t opcode)
  81 {
  82         dsp563xx_once_ir_exec(tap, DSP563XX_ONCE_OPDBR, 0, 1, 0);
  83         dsp563xx_write_dr_u32(tap, 0, opcode, 24, 0);
  84         dsp563xx_execute_queue();
  85
  86         return ERROR_OK;
  87 }
  88
  89 /** double word instruction */
  90 int dsp563xx_once_execute_dw_ir(struct jtag_tap *tap, uint32_t opcode,
  91                                 uint32_t operand)
  92 {
  93         dsp563xx_once_ir_exec(tap, DSP563XX_ONCE_OPDBR, 0, 0, 0);
  94         dsp563xx_write_dr_u32(tap, 0, opcode, 24, 0);
  95         dsp563xx_execute_queue();
  96
  97         dsp563xx_once_ir_exec(tap, DSP563XX_ONCE_OPDBR, 0, 1, 0);
  98         dsp563xx_write_dr_u32(tap, 0, operand, 24, 0);
  99         dsp563xx_execute_queue();
 100
 101         return ERROR_OK;
 102 }
 103
 104 /** single word instruction */
 105 int dsp563xx_once_execute_sw_ir_nq(struct jtag_tap *tap, uint32_t opcode)
 106 {
 107         dsp563xx_once_ir_exec_nq(tap, DSP563XX_ONCE_OPDBR, 0, 1, 0);
 108         dsp563xx_write_dr_u32(tap, 0, opcode, 24, 0);
 109
 110         return ERROR_OK;
 111 }
 112
 113 /** double word instruction */
 114 int dsp563xx_once_execute_dw_ir_nq(struct jtag_tap *tap, uint32_t opcode,
 115                                    uint32_t operand)
 116 {
 117         dsp563xx_once_ir_exec_nq(tap, DSP563XX_ONCE_OPDBR, 0, 0, 0);
 118         dsp563xx_write_dr_u32(tap, 0, opcode, 24, 0);
 119
 120         dsp563xx_once_ir_exec_nq(tap, DSP563XX_ONCE_OPDBR, 0, 1, 0);
 121         dsp563xx_write_dr_u32(tap, 0, operand, 24, 0);
 122
 123         return ERROR_OK;
 124 }