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author | Øyvind Harboe <oyvind.harboe@zylin.com> | 2009-10-09 10:00:05 +0200 |
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committer | Øyvind Harboe <oyvind.harboe@zylin.com> | 2009-10-09 10:00:05 +0200 |
commit | 8f09c5df854426179a84d93de45129a224842de6 (patch) | |
tree | 2a70d24d515c1ed0b880454893161569003accb0 /src/target/arm11_dbgtap.c | |
parent | 20a3b14828c5015647fa438e0cbee84685bcdf5f (diff) | |
download | riscv-openocd-8f09c5df854426179a84d93de45129a224842de6.zip riscv-openocd-8f09c5df854426179a84d93de45129a224842de6.tar.gz riscv-openocd-8f09c5df854426179a84d93de45129a224842de6.tar.bz2 |
ARM11 error checking
Diffstat (limited to 'src/target/arm11_dbgtap.c')
-rw-r--r-- | src/target/arm11_dbgtap.c | 41 |
1 files changed, 30 insertions, 11 deletions
diff --git a/src/target/arm11_dbgtap.c b/src/target/arm11_dbgtap.c index 54e7ae6..b08d300 100644 --- a/src/target/arm11_dbgtap.c +++ b/src/target/arm11_dbgtap.c @@ -161,7 +161,7 @@ static void arm11_in_handler_SCAN_N(uint8_t *in_value) * \remarks This adds to the JTAG command queue but does \em not execute it. */ -void arm11_add_debug_SCAN_N(arm11_common_t * arm11, uint8_t chain, tap_state_t state) +int arm11_add_debug_SCAN_N(arm11_common_t * arm11, uint8_t chain, tap_state_t state) { JTAG_DEBUG("SCREG <= 0x%02x", chain); @@ -177,6 +177,8 @@ void arm11_add_debug_SCAN_N(arm11_common_t * arm11, uint8_t chain, tap_state_t s jtag_execute_queue_noclear(); arm11_in_handler_SCAN_N(tmp); + + return jtag_execute_queue(); } /** Write an instruction into the ITR register @@ -220,7 +222,10 @@ void arm11_add_debug_INST(arm11_common_t * arm11, uint32_t inst, uint8_t * flag, */ int arm11_read_DSCR(arm11_common_t * arm11, uint32_t *value) { - arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT); + int retval; + retval = arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT); + if (retval != ERROR_OK) + return retval; arm11_add_IR(arm11, ARM11_INTEST, ARM11_TAP_DEFAULT); @@ -254,7 +259,10 @@ int arm11_read_DSCR(arm11_common_t * arm11, uint32_t *value) */ int arm11_write_DSCR(arm11_common_t * arm11, uint32_t dscr) { - arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT); + int retval; + retval = arm11_add_debug_SCAN_N(arm11, 0x01, ARM11_TAP_DEFAULT); + if (retval != ERROR_OK) + return retval; arm11_add_IR(arm11, ARM11_EXTEST, ARM11_TAP_DEFAULT); @@ -331,9 +339,9 @@ enum target_debug_reason arm11_get_DSCR_debug_reason(uint32_t dscr) * \param arm11 Target state variable. * */ -void arm11_run_instr_data_prepare(arm11_common_t * arm11) +int arm11_run_instr_data_prepare(arm11_common_t * arm11) { - arm11_add_debug_SCAN_N(arm11, 0x05, ARM11_TAP_DEFAULT); + return arm11_add_debug_SCAN_N(arm11, 0x05, ARM11_TAP_DEFAULT); } /** Cleanup after ITR/DTR operations @@ -350,9 +358,9 @@ void arm11_run_instr_data_prepare(arm11_common_t * arm11) * \param arm11 Target state variable. * */ -void arm11_run_instr_data_finish(arm11_common_t * arm11) +int arm11_run_instr_data_finish(arm11_common_t * arm11) { - arm11_add_debug_SCAN_N(arm11, 0x00, ARM11_TAP_DEFAULT); + return arm11_add_debug_SCAN_N(arm11, 0x00, ARM11_TAP_DEFAULT); } @@ -757,12 +765,19 @@ int arm11_run_instr_data_from_core_via_r0(arm11_common_t * arm11, uint32_t opcod * \param data Data word that will be written to r0 before \p opcode is executed * */ -void arm11_run_instr_data_to_core_via_r0(arm11_common_t * arm11, uint32_t opcode, uint32_t data) +int arm11_run_instr_data_to_core_via_r0(arm11_common_t * arm11, uint32_t opcode, uint32_t data) { + int retval; /* MRC p14,0,r0,c0,c5,0 */ - arm11_run_instr_data_to_core1(arm11, 0xEE100E15, data); + retval = arm11_run_instr_data_to_core1(arm11, 0xEE100E15, data); + if (retval != ERROR_OK) + return retval; - arm11_run_instr_no_data1(arm11, opcode); + retval = arm11_run_instr_no_data1(arm11, opcode); + if (retval != ERROR_OK) + return retval; + + return ERROR_OK; } /** Apply reads and writes to scan chain 7 @@ -776,7 +791,11 @@ void arm11_run_instr_data_to_core_via_r0(arm11_common_t * arm11, uint32_t opcode */ int arm11_sc7_run(arm11_common_t * arm11, arm11_sc7_action_t * actions, size_t count) { - arm11_add_debug_SCAN_N(arm11, 0x07, ARM11_TAP_DEFAULT); + int retval; + + retval = arm11_add_debug_SCAN_N(arm11, 0x07, ARM11_TAP_DEFAULT); + if (retval != ERROR_OK) + return retval; arm11_add_IR(arm11, ARM11_EXTEST, ARM11_TAP_DEFAULT); |