X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fjtag%2Fcore.c;h=65ca8245773ed1d25a57a7e9bfdf319461f63f05;hp=2e09cb6d58bcb5e026af80cc2a50f2ef539fad25;hb=7f6bab0c4c36d7a64f933904e5add9bc6b36d78c;hpb=e018c7c1d29e8dabb9b4a90bb9eb3574eb1668bb diff --git a/src/jtag/core.c b/src/jtag/core.c index 2e09cb6d58..65ca824577 100644 --- a/src/jtag/core.c +++ b/src/jtag/core.c @@ -42,7 +42,8 @@ /// The number of JTAG queue flushes (for profiling and debugging purposes). static int jtag_flush_queue_count; -static void jtag_add_scan_check(struct jtag_tap *active, void (*jtag_add_scan)(struct jtag_tap *active, int in_num_fields, const struct scan_field *in_fields, tap_state_t state), +static void jtag_add_scan_check(struct jtag_tap *active, + void (*jtag_add_scan)(struct jtag_tap *active, int in_num_fields, const struct scan_field *in_fields, tap_state_t state), int in_num_fields, struct scan_field *in_fields, tap_state_t state); /** @@ -85,16 +86,15 @@ static struct jtag_tap *__jtag_all_taps = NULL; static unsigned jtag_num_taps = 0; static enum reset_types jtag_reset_config = RESET_NONE; -static tap_state_t cmd_queue_end_state = TAP_RESET; tap_state_t cmd_queue_cur_state = TAP_RESET; static bool jtag_verify_capture_ir = true; static int jtag_verify = 1; /* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */ -static int jtag_nsrst_delay = 0; /* default to no nSRST delay */ +static int adapter_nsrst_delay = 0; /* default to no nSRST delay */ static int jtag_ntrst_delay = 0; /* default to no nTRST delay */ -static int jtag_nsrst_assert_width = 0; /* width of assertion */ +static int adapter_nsrst_assert_width = 0; /* width of assertion */ static int jtag_ntrst_assert_width = 0; /* width of assertion */ /** @@ -352,17 +352,22 @@ void jtag_alloc_in_value32(struct scan_field *field) interface_jtag_alloc_in_value32(field); } -void jtag_add_ir_scan_noverify(struct jtag_tap *active, int in_count, const struct scan_field *in_fields, +void jtag_add_ir_scan_noverify(struct jtag_tap *active, const struct scan_field *in_fields, tap_state_t state) { jtag_prelude(state); - int retval = interface_jtag_add_ir_scan(active, in_count, in_fields, state); + int retval = interface_jtag_add_ir_scan(active, in_fields, state); jtag_set_error(retval); } +static void jtag_add_ir_scan_noverify_callback(struct jtag_tap *active, int dummy, const struct scan_field *in_fields, + tap_state_t state) +{ + jtag_add_ir_scan_noverify(active, in_fields, state); +} -void jtag_add_ir_scan(struct jtag_tap *active, int in_num_fields, struct scan_field *in_fields, tap_state_t state) +void jtag_add_ir_scan(struct jtag_tap *active, struct scan_field *in_fields, tap_state_t state) { assert(state != TAP_RESET); @@ -370,30 +375,28 @@ void jtag_add_ir_scan(struct jtag_tap *active, int in_num_fields, struct scan_fi { /* 8 x 32 bit id's is enough for all invocations */ - for (int j = 0; j < in_num_fields; j++) - { - /* if we are to run a verification of the ir scan, we need to get the input back. - * We may have to allocate space if the caller didn't ask for the input back. - */ - in_fields[j].check_value = active->expected; - in_fields[j].check_mask = active->expected_mask; - } - jtag_add_scan_check(active, jtag_add_ir_scan_noverify, in_num_fields, in_fields, state); + /* if we are to run a verification of the ir scan, we need to get the input back. + * We may have to allocate space if the caller didn't ask for the input back. + */ + in_fields->check_value = active->expected; + in_fields->check_mask = active->expected_mask; + jtag_add_scan_check(active, jtag_add_ir_scan_noverify_callback, 1, in_fields, state); } else { - jtag_add_ir_scan_noverify(active, in_num_fields, in_fields, state); + jtag_add_ir_scan_noverify(active, in_fields, state); } } -void jtag_add_plain_ir_scan(int in_num_fields, const struct scan_field *in_fields, +void jtag_add_plain_ir_scan(int num_bits, const uint8_t *out_bits, uint8_t *in_bits, tap_state_t state) { + assert(out_bits != NULL); assert(state != TAP_RESET); jtag_prelude(state); int retval = interface_jtag_add_plain_ir_scan( - in_num_fields, in_fields, state); + num_bits, out_bits, in_bits, state); jtag_set_error(retval); } @@ -466,15 +469,16 @@ void jtag_add_dr_scan(struct jtag_tap *active, int in_num_fields, const struct s jtag_set_error(retval); } -void jtag_add_plain_dr_scan(int in_num_fields, const struct scan_field *in_fields, +void jtag_add_plain_dr_scan(int num_bits, const uint8_t *out_bits, uint8_t *in_bits, tap_state_t state) { + assert(out_bits != NULL); assert(state != TAP_RESET); jtag_prelude(state); int retval; - retval = interface_jtag_add_plain_dr_scan(in_num_fields, in_fields, state); + retval = interface_jtag_add_plain_dr_scan(num_bits, out_bits, in_bits, state); jtag_set_error(retval); } @@ -694,13 +698,13 @@ void jtag_add_reset(int req_tlr_or_trst, int req_srst) if (jtag_srst) { LOG_DEBUG("SRST line asserted"); - if (jtag_nsrst_assert_width) - jtag_add_sleep(jtag_nsrst_assert_width * 1000); + if (adapter_nsrst_assert_width) + jtag_add_sleep(adapter_nsrst_assert_width * 1000); } else { LOG_DEBUG("SRST line released"); - if (jtag_nsrst_delay) - jtag_add_sleep(jtag_nsrst_delay * 1000); + if (adapter_nsrst_delay) + jtag_add_sleep(adapter_nsrst_delay * 1000); } } @@ -712,7 +716,6 @@ void jtag_add_reset(int req_tlr_or_trst, int req_srst) */ if (trst_with_tlr) { LOG_DEBUG("JTAG reset with TLR instead of TRST"); - jtag_set_end_state(TAP_RESET); jtag_add_tlr(); } else if (jtag_trst != new_trst) { @@ -738,23 +741,6 @@ void jtag_add_reset(int req_tlr_or_trst, int req_srst) } } -tap_state_t jtag_set_end_state(tap_state_t state) -{ - if ((state == TAP_DRSHIFT)||(state == TAP_IRSHIFT)) - { - LOG_ERROR("BUG: TAP_DRSHIFT/IRSHIFT can't be end state. Calling code should use a larger scan field"); - } - - if (state != TAP_INVALID) - cmd_queue_end_state = state; - return cmd_queue_end_state; -} - -tap_state_t jtag_get_end_state(void) -{ - return cmd_queue_end_state; -} - void jtag_add_sleep(uint32_t us) { /// @todo Here, keep_alive() appears to be a layering violation!!! @@ -903,7 +889,7 @@ static int jtag_examine_chain_execute(uint8_t *idcode_buffer, unsigned num_idcod for (unsigned i = 0; i < JTAG_MAX_CHAIN_SIZE; i++) buf_set_u32(idcode_buffer, i * 32, 32, END_OF_CHAIN_FLAG); - jtag_add_plain_dr_scan(1, &field, TAP_DRPAUSE); + jtag_add_plain_dr_scan(field.num_bits, field.out_value, field.in_value, TAP_DRPAUSE); jtag_add_tlr(); return jtag_execute_queue(); } @@ -1204,7 +1190,7 @@ static int jtag_validate_ircapture(void) field.out_value = ir_test; field.in_value = ir_test; - jtag_add_plain_ir_scan(1, &field, TAP_IDLE); + jtag_add_plain_ir_scan(field.num_bits, field.out_value, field.in_value, TAP_IDLE); LOG_DEBUG("IR capture validation scan"); retval = jtag_execute_queue(); @@ -1341,7 +1327,11 @@ void jtag_tap_free(struct jtag_tap *tap) free(tap); } -int jtag_interface_init(struct command_context *cmd_ctx) +/** + * Do low-level setup like initializing registers, output signals, + * and clocking. + */ +int adapter_init(struct command_context *cmd_ctx) { if (jtag) return ERROR_OK; @@ -1349,7 +1339,8 @@ int jtag_interface_init(struct command_context *cmd_ctx) if (!jtag_interface) { /* nothing was previously specified by "interface" command */ - LOG_ERROR("JTAG interface has to be specified, see \"interface\" command"); + LOG_ERROR("Debug Adapter has to be specified, " + "see \"interface\" command"); return ERROR_JTAG_INVALID_INTERFACE; } @@ -1364,9 +1355,10 @@ int jtag_interface_init(struct command_context *cmd_ctx) int actual_khz = requested_khz; int retval = jtag_get_speed_readable(&actual_khz); if (ERROR_OK != retval) - LOG_INFO("interface specific clock speed value %d", jtag_get_speed()); + LOG_INFO("adapter-specific clock speed value %d", jtag_get_speed()); else if (actual_khz) { + /* Adaptive clocking -- JTAG-specific */ if ((CLOCK_MODE_RCLK == clock_mode) || ((CLOCK_MODE_KHZ == clock_mode) && !requested_khz)) { @@ -1454,7 +1446,7 @@ int jtag_init_inner(struct command_context *cmd_ctx) return ERROR_OK; } -int jtag_interface_quit(void) +int adapter_quit(void) { if (!jtag || !jtag->quit) return ERROR_OK; @@ -1472,7 +1464,7 @@ int jtag_init_reset(struct command_context *cmd_ctx) { int retval; - if ((retval = jtag_interface_init(cmd_ctx)) != ERROR_OK) + if ((retval = adapter_init(cmd_ctx)) != ERROR_OK) return retval; LOG_DEBUG("Initializing with hard TRST+SRST reset"); @@ -1526,7 +1518,7 @@ int jtag_init(struct command_context *cmd_ctx) { int retval; - if ((retval = jtag_interface_init(cmd_ctx)) != ERROR_OK) + if ((retval = adapter_init(cmd_ctx)) != ERROR_OK) return retval; /* guard against oddball hardware: force resets to be inactive */ @@ -1545,7 +1537,7 @@ unsigned jtag_get_speed_khz(void) return speed_khz; } -static int jtag_khz_to_speed(unsigned khz, int* speed) +static int adapter_khz_to_speed(unsigned khz, int* speed) { LOG_DEBUG("convert khz to interface specific speed value"); speed_khz = khz; @@ -1565,11 +1557,11 @@ static int jtag_khz_to_speed(unsigned khz, int* speed) static int jtag_rclk_to_speed(unsigned fallback_speed_khz, int* speed) { - int retval = jtag_khz_to_speed(0, speed); + int retval = adapter_khz_to_speed(0, speed); if ((ERROR_OK != retval) && fallback_speed_khz) { LOG_DEBUG("trying fallback speed..."); - retval = jtag_khz_to_speed(fallback_speed_khz, speed); + retval = adapter_khz_to_speed(fallback_speed_khz, speed); } return retval; } @@ -1587,7 +1579,7 @@ int jtag_config_khz(unsigned khz) LOG_DEBUG("handle jtag khz"); clock_mode = CLOCK_MODE_KHZ; int speed = 0; - int retval = jtag_khz_to_speed(khz, &speed); + int retval = adapter_khz_to_speed(khz, &speed); return (ERROR_OK != retval) ? retval : jtag_set_speed(speed); } @@ -1610,7 +1602,7 @@ int jtag_get_speed(void) speed = jtag_speed; break; case CLOCK_MODE_KHZ: - jtag_khz_to_speed(jtag_get_speed_khz(), &speed); + adapter_khz_to_speed(jtag_get_speed_khz(), &speed); break; case CLOCK_MODE_RCLK: jtag_rclk_to_speed(rclk_fallback_speed_khz, &speed); @@ -1685,11 +1677,11 @@ int jtag_get_srst(void) void jtag_set_nsrst_delay(unsigned delay) { - jtag_nsrst_delay = delay; + adapter_nsrst_delay = delay; } unsigned jtag_get_nsrst_delay(void) { - return jtag_nsrst_delay; + return adapter_nsrst_delay; } void jtag_set_ntrst_delay(unsigned delay) { @@ -1703,11 +1695,11 @@ unsigned jtag_get_ntrst_delay(void) void jtag_set_nsrst_assert_width(unsigned delay) { - jtag_nsrst_assert_width = delay; + adapter_nsrst_assert_width = delay; } unsigned jtag_get_nsrst_assert_width(void) { - return jtag_nsrst_assert_width; + return adapter_nsrst_assert_width; } void jtag_set_ntrst_assert_width(unsigned delay) {