X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Fjtag%2Fdrivers%2Fjlink.c;h=b915707eca9f301fa7149ce5ff450c140239189b;hb=ba564bda6694769b95e22808982d087c779e6dd9;hp=cc04953cd690d15fec1b6b3c0f9841f4111ad969;hpb=6cb5ba6f1136df2986850f5c176cb38e34ca1795;p=openocd.git diff --git a/src/jtag/drivers/jlink.c b/src/jtag/drivers/jlink.c index cc04953cd6..b915707eca 100644 --- a/src/jtag/drivers/jlink.c +++ b/src/jtag/drivers/jlink.c @@ -38,6 +38,8 @@ #include #include #include +#include +#include #include @@ -50,6 +52,7 @@ static uint8_t caps[JAYLINK_DEV_EXT_CAPS_SIZE]; static uint32_t serial_number; static bool use_serial_number; +static bool use_usb_location; static enum jaylink_usb_address usb_address; static bool use_usb_address; static enum jaylink_target_interface iface = JAYLINK_TIF_JTAG; @@ -60,6 +63,9 @@ static bool trace_enabled; static unsigned int swd_buffer_size = JLINK_TAP_BUFFER_SIZE; +/* Maximum SWO frequency deviation. */ +#define SWO_MAX_FREQ_DEV 0.03 + /* 256 byte non-volatile memory */ struct device_config { uint8_t usb_address; @@ -88,6 +94,7 @@ static void jlink_path_move(int num_states, tap_state_t *path); static void jlink_stableclocks(int num_cycles); static void jlink_runtest(int num_cycles); static void jlink_reset(int trst, int srst); +static int jlink_reset_safe(int trst, int srst); static int jlink_swd_run_queue(void); static void jlink_swd_queue_cmd(uint8_t cmd, uint32_t *dst, uint32_t data, uint32_t ap_delay_clk); static int jlink_swd_switch_seq(enum swd_special_seq seq); @@ -122,13 +129,13 @@ static int queued_retval; static void jlink_execute_stableclocks(struct jtag_command *cmd) { - DEBUG_JTAG_IO("stableclocks %i cycles", cmd->cmd.runtest->num_cycles); + LOG_DEBUG_IO("stableclocks %i cycles", cmd->cmd.runtest->num_cycles); jlink_stableclocks(cmd->cmd.runtest->num_cycles); } static void jlink_execute_runtest(struct jtag_command *cmd) { - DEBUG_JTAG_IO("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, + LOG_DEBUG_IO("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state); jlink_end_state(cmd->cmd.runtest->end_state); @@ -137,7 +144,7 @@ static void jlink_execute_runtest(struct jtag_command *cmd) static void jlink_execute_statemove(struct jtag_command *cmd) { - DEBUG_JTAG_IO("statemove end in %i", cmd->cmd.statemove->end_state); + LOG_DEBUG_IO("statemove end in %i", cmd->cmd.statemove->end_state); jlink_end_state(cmd->cmd.statemove->end_state); jlink_state_move(); @@ -145,7 +152,7 @@ static void jlink_execute_statemove(struct jtag_command *cmd) static void jlink_execute_pathmove(struct jtag_command *cmd) { - DEBUG_JTAG_IO("pathmove: %i states, end in %i", + LOG_DEBUG_IO("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]); @@ -154,7 +161,7 @@ static void jlink_execute_pathmove(struct jtag_command *cmd) static void jlink_execute_scan(struct jtag_command *cmd) { - DEBUG_JTAG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN", + LOG_DEBUG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN", jtag_scan_type(cmd->cmd.scan)); /* Make sure there are no trailing fields with num_bits == 0, or the logic below will fail. */ @@ -188,7 +195,7 @@ static void jlink_execute_scan(struct jtag_command *cmd) for (int i = 0; i < cmd->cmd.scan->num_fields; i++, field++) { scan_size += field->num_bits; - DEBUG_JTAG_IO("%s%s field %d/%d %d bits", + LOG_DEBUG_IO("%s%s field %d/%d %d bits", field->in_value ? "in" : "", field->out_value ? "out" : "", i, @@ -240,24 +247,14 @@ static void jlink_execute_scan(struct jtag_command *cmd) jlink_state_move(); } - DEBUG_JTAG_IO("%s scan, %i bits, end in %s", + LOG_DEBUG_IO("%s scan, %i bits, end in %s", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, tap_state_name(tap_get_end_state())); } -static void jlink_execute_reset(struct jtag_command *cmd) -{ - DEBUG_JTAG_IO("reset trst: %i srst %i", cmd->cmd.reset->trst, - cmd->cmd.reset->srst); - - jlink_flush(); - jlink_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst); - jlink_flush(); -} - static void jlink_execute_sleep(struct jtag_command *cmd) { - DEBUG_JTAG_IO("sleep %" PRIi32 "", cmd->cmd.sleep->us); + LOG_DEBUG_IO("sleep %" PRIu32 "", cmd->cmd.sleep->us); jlink_flush(); jtag_sleep(cmd->cmd.sleep->us); } @@ -280,9 +277,6 @@ static int jlink_execute_command(struct jtag_command *cmd) case JTAG_SCAN: jlink_execute_scan(cmd); break; - case JTAG_RESET: - jlink_execute_reset(cmd); - break; case JTAG_SLEEP: jlink_execute_sleep(cmd); break; @@ -486,7 +480,7 @@ static bool adjust_swd_buffer_size(void) } if (tmp < 143) { - LOG_ERROR("Not enough free device internal memory: %u bytes.", tmp); + LOG_ERROR("Not enough free device internal memory: %" PRIu32 " bytes.", tmp); return false; } @@ -534,6 +528,31 @@ static int jaylink_log_handler(const struct jaylink_context *ctx, return 0; } +static bool jlink_usb_location_equal(struct jaylink_device *dev) +{ + int retval; + uint8_t bus; + uint8_t *ports; + size_t num_ports; + bool equal = false; + + retval = jaylink_device_get_usb_bus_ports(dev, &bus, &ports, &num_ports); + + if (retval == JAYLINK_ERR_NOT_SUPPORTED) { + return false; + } else if (retval != JAYLINK_OK) { + LOG_WARNING("jaylink_device_get_usb_bus_ports() failed: %s.", + jaylink_strerror(retval)); + return false; + } + + equal = jtag_usb_location_equal(bus, ports, num_ports); + free(ports); + + return equal; +} + + static int jlink_init(void) { int ret; @@ -595,7 +614,9 @@ static int jlink_init(void) return ERROR_JTAG_INIT_FAILED; } - if (!use_serial_number && !use_usb_address && num_devices > 1) { + use_usb_location = (jtag_usb_get_location() != NULL); + + if (!use_serial_number && !use_usb_address && !use_usb_location && num_devices > 1) { LOG_ERROR("Multiple devices found, specify the desired device."); jaylink_free_devices(devs, true); jaylink_exit(jayctx); @@ -605,8 +626,10 @@ static int jlink_init(void) found_device = false; for (i = 0; devs[i]; i++) { + struct jaylink_device *dev = devs[i]; + if (use_serial_number) { - ret = jaylink_device_get_serial_number(devs[i], &tmp); + ret = jaylink_device_get_serial_number(dev, &tmp); if (ret == JAYLINK_ERR_NOT_AVAILABLE) { continue; @@ -621,7 +644,7 @@ static int jlink_init(void) } if (use_usb_address) { - ret = jaylink_device_get_usb_address(devs[i], &address); + ret = jaylink_device_get_usb_address(dev, &address); if (ret == JAYLINK_ERR_NOT_SUPPORTED) { continue; @@ -635,7 +658,10 @@ static int jlink_init(void) continue; } - ret = jaylink_open(devs[i], &devh); + if (use_usb_location && !jlink_usb_location_equal(dev)) + continue; + + ret = jaylink_open(dev, &devh); if (ret == JAYLINK_OK) { found_device = true; @@ -918,6 +944,13 @@ static void jlink_reset(int trst, int srst) jaylink_jtag_set_trst(devh); } +static int jlink_reset_safe(int trst, int srst) +{ + jlink_flush(); + jlink_reset(trst, srst); + return jlink_flush(); +} + COMMAND_HANDLER(jlink_usb_command) { int tmp; @@ -1016,7 +1049,7 @@ COMMAND_HANDLER(jlink_handle_free_memory_command) return ERROR_FAIL; } - command_print(CMD, "Device has %u bytes of free memory.", tmp); + command_print(CMD, "Device has %" PRIu32 " bytes of free memory.", tmp); return ERROR_OK; } @@ -1233,55 +1266,71 @@ static uint32_t calculate_trace_buffer_size(void) return tmp & 0xffffff00; } -static bool check_trace_freq(struct jaylink_swo_speed speed, - uint32_t trace_freq) +static bool calculate_swo_prescaler(unsigned int traceclkin_freq, + uint32_t trace_freq, uint16_t *prescaler) +{ + unsigned int presc = (traceclkin_freq + trace_freq / 2) / trace_freq; + if (presc == 0 || presc > TPIU_ACPR_MAX_SWOSCALER + 1) + return false; + + /* Probe's UART speed must be within 3% of the TPIU's SWO baud rate. */ + unsigned int max_deviation = (traceclkin_freq * 3) / 100; + if (presc * trace_freq < traceclkin_freq - max_deviation || + presc * trace_freq > traceclkin_freq + max_deviation) + return false; + + *prescaler = presc; + + return true; +} + +static bool detect_swo_freq_and_prescaler(struct jaylink_swo_speed speed, + unsigned int traceclkin_freq, unsigned int *trace_freq, + uint16_t *prescaler) { - double min; - double deviation; uint32_t divider; + unsigned int presc; + double deviation; - min = fabs(1.0 - (speed.freq / ((double)trace_freq * speed.min_div))); + for (divider = speed.min_div; divider <= speed.max_div; divider++) { + *trace_freq = speed.freq / divider; + presc = ((1.0 - SWO_MAX_FREQ_DEV) * traceclkin_freq) / *trace_freq + 1; - for (divider = speed.min_div; divider < speed.max_div; divider++) { - deviation = fabs(1.0 - (speed.freq / ((double)trace_freq * divider))); + if (presc > TPIU_ACPR_MAX_SWOSCALER + 1) + break; - if (deviation < 0.03) { - LOG_DEBUG("Found suitable frequency divider %u with deviation of " - "%.02f %%.", divider, deviation); + deviation = fabs(1.0 - ((double)*trace_freq * presc / traceclkin_freq)); + + if (deviation <= SWO_MAX_FREQ_DEV) { + *prescaler = presc; return true; } - - if (deviation < min) - min = deviation; } - LOG_ERROR("Selected trace frequency is not supported by the device. " - "Please choose a different trace frequency."); - LOG_ERROR("Maximum permitted deviation is 3.00 %%, but only %.02f %% " - "could be achieved.", min * 100); - return false; } static int config_trace(bool enabled, enum tpiu_pin_protocol pin_protocol, - uint32_t port_size, unsigned int *trace_freq) + uint32_t port_size, unsigned int *trace_freq, + unsigned int traceclkin_freq, uint16_t *prescaler) { int ret; uint32_t buffer_size; struct jaylink_swo_speed speed; + uint32_t divider; + uint32_t min_freq; + uint32_t max_freq; + + trace_enabled = enabled; if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SWO)) { - LOG_ERROR("Trace capturing is not supported by the device."); - return ERROR_FAIL; - } + if (!enabled) + return ERROR_OK; - if (pin_protocol != TPIU_PIN_PROTOCOL_ASYNC_UART) { - LOG_ERROR("Selected pin protocol is not supported."); + LOG_ERROR("Trace capturing is not supported by the device."); return ERROR_FAIL; } - trace_enabled = enabled; - ret = jaylink_swo_stop(devh); if (ret != JAYLINK_OK) { @@ -1300,6 +1349,11 @@ static int config_trace(bool enabled, enum tpiu_pin_protocol pin_protocol, return ERROR_OK; } + if (pin_protocol != TPIU_PIN_PROTOCOL_ASYNC_UART) { + LOG_ERROR("Selected pin protocol is not supported."); + return ERROR_FAIL; + } + buffer_size = calculate_trace_buffer_size(); if (!buffer_size) { @@ -1315,13 +1369,45 @@ static int config_trace(bool enabled, enum tpiu_pin_protocol pin_protocol, return ERROR_FAIL; } - if (!*trace_freq) - *trace_freq = speed.freq / speed.min_div; + if (*trace_freq > 0) { + divider = speed.freq / *trace_freq; + min_freq = speed.freq / speed.max_div; + max_freq = speed.freq / speed.min_div; + + if (*trace_freq > max_freq) { + LOG_INFO("Given SWO frequency too high, using %" PRIu32 " Hz instead.", + max_freq); + *trace_freq = max_freq; + } else if (*trace_freq < min_freq) { + LOG_INFO("Given SWO frequency too low, using %" PRIu32 " Hz instead.", + min_freq); + *trace_freq = min_freq; + } else if (*trace_freq != speed.freq / divider) { + *trace_freq = speed.freq / divider; + + LOG_INFO("Given SWO frequency is not supported by the device, " + "using %u Hz instead.", *trace_freq); + } - if (!check_trace_freq(speed, *trace_freq)) - return ERROR_FAIL; + if (!calculate_swo_prescaler(traceclkin_freq, *trace_freq, + prescaler)) { + LOG_ERROR("SWO frequency is not suitable. Please choose a " + "different frequency or use auto-detection."); + return ERROR_FAIL; + } + } else { + LOG_INFO("Trying to auto-detect SWO frequency."); - LOG_DEBUG("Using %u bytes device memory for trace capturing.", buffer_size); + if (!detect_swo_freq_and_prescaler(speed, traceclkin_freq, trace_freq, + prescaler)) { + LOG_ERROR("Maximum permitted frequency deviation of %.02f %% " + "could not be achieved.", SWO_MAX_FREQ_DEV); + LOG_ERROR("Auto-detection of SWO frequency failed."); + return ERROR_FAIL; + } + + LOG_INFO("Using SWO frequency of %u Hz.", *trace_freq); + } ret = jaylink_swo_start(devh, JAYLINK_SWO_MODE_UART, *trace_freq, buffer_size); @@ -1331,6 +1417,9 @@ static int config_trace(bool enabled, enum tpiu_pin_protocol pin_protocol, return ERROR_FAIL; } + LOG_DEBUG("Using %" PRIu32 " bytes device memory for trace capturing.", + buffer_size); + /* * Adjust the SWD transaction buffer size as starting SWO capturing * allocates device internal memory. @@ -1436,7 +1525,7 @@ COMMAND_HANDLER(jlink_handle_config_mac_address_command) } else if (CMD_ARGC == 1) { str = CMD_ARGV[0]; - if ((strlen(str) != 17) || (str[2] != ':' || str[5] != ':' || \ + if ((strlen(str) != 17) || (str[2] != ':' || str[5] != ':' || str[8] != ':' || str[11] != ':' || str[14] != ':')) { command_print(CMD, "Invalid MAC address format."); return ERROR_COMMAND_SYNTAX_ERROR; @@ -1715,7 +1804,7 @@ COMMAND_HANDLER(jlink_handle_emucom_read_command) return ERROR_FAIL; } else if (ret == JAYLINK_ERR_DEV_NOT_AVAILABLE) { LOG_ERROR("Channel is not available for the requested amount of data. " - "%" PRIu32 " bytes are avilable.", length); + "%" PRIu32 " bytes are available.", length); free(buf); return ERROR_FAIL; } else if (ret != JAYLINK_OK) { @@ -1895,14 +1984,6 @@ static void jlink_swd_read_reg(uint8_t cmd, uint32_t *value, uint32_t ap_delay_c jlink_swd_queue_cmd(cmd, value, 0, ap_delay_clk); } -static int_least32_t jlink_swd_frequency(int_least32_t hz) -{ - if (hz > 0) - jlink_speed(hz / 1000); - - return hz; -} - /***************************************************************************/ /* J-Link tap functions */ @@ -2004,7 +2085,7 @@ static int jlink_flush(void) buf_set_buf(tdo_buffer, p->first, p->buffer, p->buffer_offset, p->length); - DEBUG_JTAG_IO("Pending scan result, length = %d.", p->length); + LOG_DEBUG_IO("Pending scan result, length = %d.", p->length); } jlink_tap_init(); @@ -2178,7 +2259,6 @@ static void jlink_swd_queue_cmd(uint8_t cmd, uint32_t *dst, uint32_t data, uint3 static const struct swd_driver jlink_swd = { .init = &jlink_swd_init, - .frequency = &jlink_swd_frequency, .switch_seq = &jlink_swd_switch_seq, .read_reg = &jlink_swd_read_reg, .write_reg = &jlink_swd_write_reg, @@ -2187,17 +2267,24 @@ static const struct swd_driver jlink_swd = { static const char * const jlink_transports[] = { "jtag", "swd", NULL }; -struct jtag_interface jlink_interface = { +static struct jtag_interface jlink_interface = { + .execute_queue = &jlink_execute_queue, +}; + +struct adapter_driver jlink_adapter_driver = { .name = "jlink", - .commands = jlink_command_handlers, .transports = jlink_transports, - .swd = &jlink_swd, - .execute_queue = &jlink_execute_queue, - .speed = &jlink_speed, - .speed_div = &jlink_speed_div, - .khz = &jlink_khz, + .commands = jlink_command_handlers, + .init = &jlink_init, .quit = &jlink_quit, + .reset = &jlink_reset_safe, + .speed = &jlink_speed, + .khz = &jlink_khz, + .speed_div = &jlink_speed_div, .config_trace = &config_trace, .poll_trace = &poll_trace, + + .jtag_ops = &jlink_interface, + .swd_ops = &jlink_swd, };