diff options
Diffstat (limited to 'src/target/arm11_dbgtap.c')
| -rw-r--r-- | src/target/arm11_dbgtap.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/src/target/arm11_dbgtap.c b/src/target/arm11_dbgtap.c index 554d6e2b..088981f8 100644 --- a/src/target/arm11_dbgtap.c +++ b/src/target/arm11_dbgtap.c @@ -48,14 +48,14 @@ static const tap_state_t arm11_move_pi_to_si_via_ci[] = }; -static int arm11_add_ir_scan_vc(int num_fields, struct scan_field *fields, +/* REVISIT no error handling here! */ +static void arm11_add_ir_scan_vc(int num_fields, struct scan_field *fields, tap_state_t state) { if (cmd_queue_cur_state == TAP_IRPAUSE) jtag_add_pathmove(ARRAY_SIZE(arm11_move_pi_to_si_via_ci), arm11_move_pi_to_si_via_ci); jtag_add_ir_scan(num_fields, fields, state); - return ERROR_OK; } static const tap_state_t arm11_move_pd_to_sd_via_cd[] = @@ -63,13 +63,14 @@ static const tap_state_t arm11_move_pd_to_sd_via_cd[] = TAP_DREXIT2, TAP_DRUPDATE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DRSHIFT }; -int arm11_add_dr_scan_vc(int num_fields, struct scan_field *fields, tap_state_t state) +/* REVISIT no error handling here! */ +void arm11_add_dr_scan_vc(int num_fields, struct scan_field *fields, + tap_state_t state) { if (cmd_queue_cur_state == TAP_DRPAUSE) jtag_add_pathmove(ARRAY_SIZE(arm11_move_pd_to_sd_via_cd), arm11_move_pd_to_sd_via_cd); jtag_add_dr_scan(num_fields, fields, state); - return ERROR_OK; } @@ -83,7 +84,8 @@ int arm11_add_dr_scan_vc(int num_fields, struct scan_field *fields, tap_state_t * <em > (data is written when the JTAG queue is executed)</em> * \param field target data structure that will be initialized */ -void arm11_setup_field(struct arm11_common * arm11, int num_bits, void * out_data, void * in_data, struct scan_field * field) +void arm11_setup_field(struct arm11_common *arm11, int num_bits, + void *out_data, void *in_data, struct scan_field *field) { field->tap = arm11->arm.target->tap; field->num_bits = num_bits; @@ -151,24 +153,17 @@ void arm11_add_IR(struct arm11_common * arm11, uint8_t instr, tap_state_t state) arm11_add_ir_scan_vc(1, &field, state == ARM11_TAP_DEFAULT ? TAP_IRPAUSE : state); } -/** Verify shifted out data from Scan Chain Register (SCREG) - * Used as parameter to struct scan_field::in_handler in - * arm11_add_debug_SCAN_N(). - * - */ +/** Verify data shifted out from Scan Chain Register (SCREG). */ static void arm11_in_handler_SCAN_N(uint8_t *in_value) { - /** \todo TODO: clarify why this isnt properly masked in core.c jtag_read_buffer() */ + /* Don't expect JTAG layer to modify bits we didn't ask it to read */ uint8_t v = *in_value & 0x1F; if (v != 0x10) { - LOG_ERROR("'arm11 target' JTAG communication error SCREG SCAN OUT 0x%02x (expected 0x10)", v); + LOG_ERROR("'arm11 target' JTAG error SCREG OUT 0x%02x", v); jtag_set_error(ERROR_FAIL); } - - if (v != 0x10) - JTAG_DEBUG("SCREG SCAN OUT 0x%02x", v); } /** Select and write to Scan Chain Register (SCREG) |