X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Farm_jtag.c;h=af626eca6b43531faa533d2eae1d563b0f8eac7f;hp=3bb8a32feba519b02b69ae1e13b0ff84a86155f4;hb=a502676df7e6e99c29f207003ec02a128012d325;hpb=3acb107b9ae4e3d38d3fcfd29b455ebcfb444696 diff --git a/src/target/arm_jtag.c b/src/target/arm_jtag.c index 3bb8a32feb..af626eca6b 100644 --- a/src/target/arm_jtag.c +++ b/src/target/arm_jtag.c @@ -2,6 +2,9 @@ * 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 * @@ -23,176 +26,91 @@ #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) +int arm_jtag_set_instr(struct arm_jtag *jtag_info, uint32_t new_instr, void *no_verify_capture) { - jtag_device_t *device = jtag_get_device(jtag_info->chain_pos); - - if (buf_get_u32(device->cur_instr, 0, device->ir_length) != new_instr) + struct jtag_tap *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; - - field.device = jtag_info->chain_pos; - field.num_bits = device->ir_length; - field.out_value = calloc(CEIL(field.num_bits, 8), 1); + struct scan_field field; + uint8_t 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.out_mask = NULL; field.in_value = NULL; - field.in_check_value = NULL; - field.in_check_mask = NULL; - field.in_handler = NULL; - field.in_handler_priv = NULL; - - jtag_add_ir_scan(1, &field, -1); - - free(field.out_value); + + + + if (no_verify_capture == NULL) + { + jtag_add_ir_scan(1, &field, jtag_get_end_state()); + } 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, jtag_get_end_state()); + } } - + return ERROR_OK; } -int arm_jtag_scann(arm_jtag_t *jtag_info, u32 new_scan_chain) +int arm_jtag_scann(struct arm_jtag *jtag_info, uint32_t new_scan_chain) { - if(jtag_info->cur_scan_chain != new_scan_chain) + int retval = ERROR_OK; + if (jtag_info->cur_scan_chain != new_scan_chain) { - 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 = &scan_n_capture; - field.in_value = NULL; - field.in_check_value = NULL; - field.in_check_mask = NULL; - field.in_handler = NULL; - field.in_handler_priv = NULL; - - arm_jtag_set_instr(jtag_info, jtag_info->scann_instr); - jtag_add_dr_scan(1, &field, -1); - + uint32_t 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, + jtag_get_end_state()); + jtag_info->cur_scan_chain = new_scan_chain; - - free(field.out_value); } - - return ERROR_OK; + + return retval; } int arm_jtag_reset_callback(enum jtag_event event, void *priv) { - arm_jtag_t *jtag_info = priv; - + struct arm_jtag *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) +int arm_jtag_setup_connection(struct arm_jtag *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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - 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) -{ - u8 *dest = priv; - *dest = le_to_h_u32(in_buf) & 0xff; - return ERROR_OK; + return jtag_register_event_callback(arm_jtag_reset_callback, jtag_info); }