X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Farm_jtag.c;h=1732aac78e02c5aeec47b02d38ede9bf46467240;hp=08cf3462dcdaab060db23864ff79de3a4357fdd0;hb=4f19ef3cce5fe96114a6e444598d5b6571694e76;hpb=687a9553c9cc74a7ca3d3ac5f2470b34e7cc623b diff --git a/src/target/arm_jtag.c b/src/target/arm_jtag.c index 08cf3462dc..1732aac78e 100644 --- a/src/target/arm_jtag.c +++ b/src/target/arm_jtag.c @@ -1,207 +1,210 @@ -/*************************************************************************** - * Copyright (C) 2005 by Dominic Rath * - * Dominic.Rath@gmx.de * - * * - * This program is free software; you can redistribute it and/or modify * - * it under the terms of the GNU General Public License as published by * - * the Free Software Foundation; either version 2 of the License, or * - * (at your option) any later version. * - * * - * This program is distributed in the hope that it will be useful, * - * but WITHOUT ANY WARRANTY; without even the implied warranty of * - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * - * GNU General Public License for more details. * - * * - * You should have received a copy of the GNU General Public License * - * along with this program; if not, write to the * - * Free Software Foundation, Inc., * - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * - ***************************************************************************/ -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "arm_jtag.h" - -#include "binarybuffer.h" -#include "log.h" -#include "jtag.h" - -#include - -#if 0 -#define _ARM_JTAG_SCAN_N_CHECK_ -#endif - -int arm_jtag_set_instr(arm_jtag_t *jtag_info, u32 new_instr, in_handler_t handler) -{ - jtag_device_t *device = jtag_get_device(jtag_info->chain_pos); - - if (buf_get_u32(device->cur_instr, 0, device->ir_length) != new_instr) - { - scan_field_t field; - - field.device = jtag_info->chain_pos; - field.num_bits = device->ir_length; - field.out_value = calloc(CEIL(field.num_bits, 8), 1); - buf_set_u32(field.out_value, 0, field.num_bits, new_instr); - field.out_mask = NULL; - field.in_value = NULL; - field.in_check_value = NULL; - field.in_check_mask = NULL; - field.in_handler = handler; - field.in_handler_priv = NULL; - jtag_add_ir_scan(1, &field, -1); - - - free(field.out_value); - } - - return ERROR_OK; -} - -int arm_jtag_scann(arm_jtag_t *jtag_info, u32 new_scan_chain) -{ - if(jtag_info->cur_scan_chain != new_scan_chain) - { -#ifdef _ARM_JTAG_SCAN_N_CHECK_ - u8 scan_n_check_value = 1 << (jtag_info->scann_size - 1); -#endif - scan_field_t field; - - field.device = jtag_info->chain_pos; - field.num_bits = jtag_info->scann_size; - field.out_value = calloc(CEIL(field.num_bits, 8), 1); - buf_set_u32(field.out_value, 0, field.num_bits, new_scan_chain); - field.out_mask = NULL; - field.in_value = NULL; -#ifdef _ARM_JTAG_SCAN_N_CHECK_ - jtag_set_check_value(&field, &scan_n_check_value, NULL, NULL, NULL); -#else - field.in_handler = NULL; - field.in_handler_priv = NULL; -#endif - - - arm_jtag_set_instr(jtag_info, jtag_info->scann_instr, NULL); - jtag_add_dr_scan(1, &field, -1); - - jtag_info->cur_scan_chain = new_scan_chain; - - free(field.out_value); - } - - return ERROR_OK; -} - -int arm_jtag_reset_callback(enum jtag_event event, void *priv) -{ - arm_jtag_t *jtag_info = priv; - - if (event == JTAG_TRST_ASSERTED) - { - jtag_info->cur_scan_chain = 0; - } - - return ERROR_OK; -} - -int arm_jtag_setup_connection(arm_jtag_t *jtag_info) -{ - jtag_info->scann_instr = 0x2; - jtag_info->cur_scan_chain = 0; - jtag_info->intest_instr = 0xc; - - jtag_register_event_callback(arm_jtag_reset_callback, jtag_info); - - return ERROR_OK; -} - -/* read JTAG buffer into host-endian u32, flipping bit-order */ -int arm_jtag_buf_to_u32_flip(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - u32 *dest = priv; - *dest = flip_u32(le_to_h_u32(in_buf), 32); - return ERROR_OK; -} - -/* read JTAG buffer into little-endian u32, flipping bit-order */ -int arm_jtag_buf_to_le32_flip(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - h_u32_to_le(((u8*)priv), flip_u32(le_to_h_u32(in_buf), 32)); - return ERROR_OK; -} - -/* read JTAG buffer into little-endian u16, flipping bit-order */ -int arm_jtag_buf_to_le16_flip(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - h_u16_to_le(((u8*)priv), flip_u32(le_to_h_u32(in_buf), 32) & 0xffff); - return ERROR_OK; -} - -/* read JTAG buffer into big-endian u32, flipping bit-order */ -int arm_jtag_buf_to_be32_flip(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - h_u32_to_be(((u8*)priv), flip_u32(le_to_h_u32(in_buf), 32)); - return ERROR_OK; -} - -/* read JTAG buffer into big-endian u16, flipping bit-order */ -int arm_jtag_buf_to_be16_flip(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - h_u16_to_be(((u8*)priv), flip_u32(le_to_h_u32(in_buf), 32) & 0xffff); - return ERROR_OK; -} - -/* read JTAG buffer into u8, flipping bit-order */ -int arm_jtag_buf_to_8_flip(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - u8 *dest = priv; - *dest = flip_u32(le_to_h_u32(in_buf), 32) & 0xff; - return ERROR_OK; -} - -/* not-flipping variants */ -/* read JTAG buffer into host-endian u32 */ -int arm_jtag_buf_to_u32(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - u32 *dest = priv; - *dest = le_to_h_u32(in_buf); - return ERROR_OK; -} - -/* read JTAG buffer into little-endian u32 */ -int arm_jtag_buf_to_le32(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - h_u32_to_le(((u8*)priv), le_to_h_u32(in_buf)); - return ERROR_OK; -} - -/* read JTAG buffer into little-endian u16 */ -int arm_jtag_buf_to_le16(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - h_u16_to_le(((u8*)priv), le_to_h_u32(in_buf) & 0xffff); - return ERROR_OK; -} - -/* read JTAG buffer into big-endian u32 */ -int arm_jtag_buf_to_be32(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - h_u32_to_be(((u8*)priv), le_to_h_u32(in_buf)); - return ERROR_OK; -} - -/* read JTAG buffer into big-endian u16 */ -int arm_jtag_buf_to_be16(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - h_u16_to_be(((u8*)priv), le_to_h_u32(in_buf) & 0xffff); - return ERROR_OK; -} - -/* read JTAG buffer into u8 */ -int arm_jtag_buf_to_8(u8 *in_buf, void *priv, struct scan_field_s *field) -{ - u8 *dest = priv; - *dest = le_to_h_u32(in_buf) & 0xff; - return ERROR_OK; -} +/*************************************************************************** + * Copyright (C) 2005 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * Copyright (C) 2007,2008 Øyvind Harboe * + * oyvind.harboe@zylin.com * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "arm_jtag.h" + +#include "binarybuffer.h" +#include "log.h" +#include "jtag.h" + +#include + +#if 0 +#define _ARM_JTAG_SCAN_N_CHECK_ +#endif + +int arm_jtag_set_instr(arm_jtag_t *jtag_info, u32 new_instr, void *no_verify_capture) +{ + jtag_tap_t *tap; + tap = jtag_info->tap; + if (tap==NULL) + return ERROR_FAIL; + + if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr) + { + scan_field_t field; + u8 t[4]; + + field.tap = tap; + field.num_bits = tap->ir_length; + field.out_value = t; + buf_set_u32(field.out_value, 0, field.num_bits, new_instr); + field.in_value = NULL; + field.in_handler = NULL; + + + if (no_verify_capture==NULL) + { + jtag_add_ir_scan(1, &field, TAP_INVALID); + } else + { + /* FIX!!!! this is a kludge!!! arm926ejs.c should reimplement this arm_jtag_set_instr to + * have special verification code. + */ + jtag_add_ir_scan_noverify(1, &field, TAP_INVALID); + } + } + + return ERROR_OK; +} + +int arm_jtag_scann(arm_jtag_t *jtag_info, u32 new_scan_chain) +{ + int retval = ERROR_OK; + if(jtag_info->cur_scan_chain != new_scan_chain) + { + u32 values[1]; + int num_bits[1]; + + values[0]=new_scan_chain; + num_bits[0]=jtag_info->scann_size; + + if((retval = arm_jtag_set_instr(jtag_info, jtag_info->scann_instr, NULL)) != ERROR_OK) + { + return retval; + } + + jtag_add_dr_out(jtag_info->tap, + 1, + num_bits, + values, + TAP_INVALID); + + jtag_info->cur_scan_chain = new_scan_chain; + } + + return retval; +} + +int arm_jtag_reset_callback(enum jtag_event event, void *priv) +{ + arm_jtag_t *jtag_info = priv; + + if (event == JTAG_TRST_ASSERTED) + { + jtag_info->cur_scan_chain = 0; + } + + return ERROR_OK; +} + +int arm_jtag_setup_connection(arm_jtag_t *jtag_info) +{ + jtag_info->scann_instr = 0x2; + jtag_info->cur_scan_chain = 0; + jtag_info->intest_instr = 0xc; + + return jtag_register_event_callback(arm_jtag_reset_callback, jtag_info); +} + +/* read JTAG buffer into host-endian u32, flipping bit-order */ +int arm_jtag_buf_to_u32_flip(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + u32 *dest = priv; + *dest = flip_u32(le_to_h_u32(in_buf), 32); + return ERROR_OK; +} + +/* read JTAG buffer into little-endian u32, flipping bit-order */ +int arm_jtag_buf_to_le32_flip(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + h_u32_to_le(((u8*)priv), flip_u32(le_to_h_u32(in_buf), 32)); + return ERROR_OK; +} + +/* read JTAG buffer into little-endian u16, flipping bit-order */ +int arm_jtag_buf_to_le16_flip(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + h_u16_to_le(((u8*)priv), flip_u32(le_to_h_u32(in_buf), 32) & 0xffff); + return ERROR_OK; +} + +/* read JTAG buffer into big-endian u32, flipping bit-order */ +int arm_jtag_buf_to_be32_flip(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + h_u32_to_be(((u8*)priv), flip_u32(le_to_h_u32(in_buf), 32)); + return ERROR_OK; +} + +/* read JTAG buffer into big-endian u16, flipping bit-order */ +int arm_jtag_buf_to_be16_flip(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + h_u16_to_be(((u8*)priv), flip_u32(le_to_h_u32(in_buf), 32) & 0xffff); + return ERROR_OK; +} + +/* read JTAG buffer into u8, flipping bit-order */ +int arm_jtag_buf_to_8_flip(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + u8 *dest = priv; + *dest = flip_u32(le_to_h_u32(in_buf), 32) & 0xff; + return ERROR_OK; +} + +/* not-flipping variants */ +/* read JTAG buffer into host-endian u32 */ +int arm_jtag_buf_to_u32(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + u32 *dest = priv; + *dest = le_to_h_u32(in_buf); + return ERROR_OK; +} + +/* read JTAG buffer into little-endian u32 */ +int arm_jtag_buf_to_le32(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + h_u32_to_le(((u8*)priv), le_to_h_u32(in_buf)); + return ERROR_OK; +} + +/* read JTAG buffer into little-endian u16 */ +int arm_jtag_buf_to_le16(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + h_u16_to_le(((u8*)priv), le_to_h_u32(in_buf) & 0xffff); + return ERROR_OK; +} + +/* read JTAG buffer into big-endian u32 */ +int arm_jtag_buf_to_be32(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + h_u32_to_be(((u8*)priv), le_to_h_u32(in_buf)); + return ERROR_OK; +} + +/* read JTAG buffer into big-endian u16 */ +int arm_jtag_buf_to_be16(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + h_u16_to_be(((u8*)priv), le_to_h_u32(in_buf) & 0xffff); + return ERROR_OK; +} + +/* read JTAG buffer into u8 */ +int arm_jtag_buf_to_8(u8 *in_buf, void *priv, struct scan_field_s *field) +{ + u8 *dest = priv; + *dest = le_to_h_u32(in_buf) & 0xff; + return ERROR_OK; +}