C++ ccprintf函数代码示例

static int command_mem_dump(int argc, char **argv)
{
	volatile uint32_t *address;
	uint32_t value, num = 1, i;
	char *e;

	if (argc < 2)
		return EC_ERROR_PARAM_COUNT;

	address = (uint32_t *)(uintptr_t)strtoi(argv[1], &e, 0);
	if (*e)
		return EC_ERROR_PARAM1;

	if (argc >= 3)
		num = strtoi(argv[2], &e, 0);

	for (i = 0; i < num; i++) {
		value = address[i];
		if (0 == (i%4))
			ccprintf("\n%08X: %08x", address+i, value);
		else
			ccprintf(" %08x", value);
		cflush();

		/* Lots of output could take a while.
		 * Let other things happen, too */
		if (!(i % 0x100)) {
			watchdog_reload();
			usleep(10 * MSEC);
		}
	}
	ccprintf("\n");
	cflush();
	return EC_SUCCESS;
}

static int command_powerbtn(int argc, char **argv)
{
	int ms = 200;  /* Press duration in ms */
	char *e;

	if (argc > 1) {
		ms = strtoi(argv[1], &e, 0);
		if (*e)
			return EC_ERROR_PARAM1;
	}

	ccprintf("Simulating %d ms power button press.\n", ms);
	simulate_power_pressed = 1;
	power_button_is_stable = 0;
	hook_call_deferred(power_button_change_deferred, 0);

	msleep(ms);

	ccprintf("Simulating power button release.\n");
	simulate_power_pressed = 0;
	power_button_is_stable = 0;
	hook_call_deferred(power_button_change_deferred, 0);

	return EC_SUCCESS;
}

static int command_accel_read_xyz(int argc, char **argv)
{
	char *e;
	int id, n = 1, ret;
	struct motion_sensor_t *sensor;
	vector_3_t v;

	if (argc < 2)
		return EC_ERROR_PARAM_COUNT;

	/* First argument is sensor id. */
	id = strtoi(argv[1], &e, 0);

	if (*e || id < 0 || id >= motion_sensor_count)
		return EC_ERROR_PARAM1;

	if (argc >= 3)
		n = strtoi(argv[2], &e, 0);

	sensor = &motion_sensors[id];

	while ((n == -1) || (n-- > 0)) {
		ret = sensor->drv->read(sensor, v);
		if (ret == 0)
			ccprintf("Current data %d: %-5d %-5d %-5d\n",
				 id, v[X], v[Y], v[Z]);
		else
			ccprintf("vector not ready\n");
		ccprintf("Last calib. data %d: %-5d %-5d %-5d\n",
			 id, sensor->xyz[X], sensor->xyz[Y], sensor->xyz[Z]);
		task_wait_event(MIN_MOTION_SENSE_WAIT_TIME);
	}
	return EC_SUCCESS;
}

static int command_powerindebug(int argc, char **argv)
{
	const struct power_signal_info *s = power_signal_list;
	int i;
	char *e;

	/* If one arg, set the mask */
	if (argc == 2) {
		int m = strtoi(argv[1], &e, 0);
		if (*e)
			return EC_ERROR_PARAM1;

		in_debug = m;
	}

	/* Print the mask */
	ccprintf("power in:   0x%04x\n", in_signals);
	ccprintf("debug mask: 0x%04x\n", in_debug);

	/* Print the decode */

	ccprintf("bit meanings:\n");
	for (i = 0; i < POWER_SIGNAL_COUNT; i++, s++) {
		int mask = 1 << i;
		ccprintf("  0x%04x %d %s\n",
			 mask, in_signals & mask ? 1 : 0, s->name);
	}

	return EC_SUCCESS;
};

static void do_print_later(void)
{
	int lines_per_loop = 32;		/* too much at once fails */
	int copy_of_stuff_in;
	int copy_of_overflow;

	interrupt_disable();
	copy_of_stuff_in = stuff_in;
	copy_of_overflow = stuff_overflow;
	stuff_overflow = 0;
	interrupt_enable();

	if (copy_of_overflow)
		ccprintf("*** WARNING: %d MESSAGES WERE LOST ***\n",
			 copy_of_overflow);

	while (lines_per_loop && stuff_out != copy_of_stuff_in) {
		ccprintf("at %.6ld: ", stuff_to_print[stuff_out].t);
		ccprintf(stuff_to_print[stuff_out].fmt,
			 stuff_to_print[stuff_out].a0,
			 stuff_to_print[stuff_out].a1,
			 stuff_to_print[stuff_out].a2,
			 stuff_to_print[stuff_out].a3,
			 stuff_to_print[stuff_out].a4);
		ccprintf("\n");
		stuff_out = (stuff_out + 1) % MAX_ENTRIES;
		lines_per_loop--;
	}
}

static void show_charging_progress(void)
{
	int rv, minutes, to_full;

	if (!curr.batt_is_charging) {
		rv = battery_time_to_empty(&minutes);
		to_full = 0;
	} else {
		rv = battery_time_to_full(&minutes);
		to_full = 1;
	}

	if (rv)
		CPRINTS("Battery %d%% / ??h:?? %s%s",
			curr.batt.state_of_charge,
			to_full ? "to full" : "to empty",
			is_full ? ", not accepting current" : "");
	else
		CPRINTS("Battery %d%% / %dh:%d %s%s",
			curr.batt.state_of_charge,
			minutes / 60, minutes % 60,
			to_full ? "to full" : "to empty",
			is_full ? ", not accepting current" : "");

	if (debugging) {
		ccprintf("battery:\n");
		print_battery_debug();
		ccprintf("charger:\n");
		print_charger_debug();
		ccprintf("chg:\n");
		dump_charge_state();
	}
}

static int command_gpio_get(int argc, char **argv)
{
	int changed, v, i;

	/* If a signal is specified, print only that one */
	if (argc == 2) {
		i = find_signal_by_name(argv[1]);
		if (i == GPIO_COUNT)
			return EC_ERROR_PARAM1;
		v = gpio_get_level(i);
		changed = last_val_changed(i, v);
		ccprintf("  %d%c %s\n", v, (changed ? '*' : ' '),
			 gpio_get_name(i));

		return EC_SUCCESS;
	}

	/* Otherwise print them all */
	for (i = 0; i < GPIO_COUNT; i++) {
		if (!gpio_is_implemented(i))
			continue;  /* Skip unsupported signals */

		v = gpio_get_level(i);
		changed = last_val_changed(i, v);
		ccprintf("  %d%c %s\n", v, (changed ? '*' : ' '),
			 gpio_get_name(i));

		/* Flush console to avoid truncating output */
		cflush();
	}

	return EC_SUCCESS;
}

static int print_status(void)
{
	int value;

	print_temps("Local", TMP432_LOCAL,
		    TMP432_LOCAL_THERM_LIMIT,
		    TMP432_LOCAL_HIGH_LIMIT_R,
		    TMP432_LOCAL_LOW_LIMIT_R);

	print_temps("Remote1", TMP432_REMOTE1,
		    TMP432_REMOTE1_THERM_LIMIT,
		    TMP432_REMOTE1_HIGH_LIMIT_R,
		    TMP432_REMOTE1_LOW_LIMIT_R);

	print_temps("Remote2", TMP432_REMOTE2,
		    TMP432_REMOTE2_THERM_LIMIT,
		    TMP432_REMOTE2_HIGH_LIMIT_R,
		    TMP432_REMOTE2_LOW_LIMIT_R);

	ccprintf("\n");

	if (raw_read8(TMP432_STATUS, &value) == EC_SUCCESS)
		ccprintf("STATUS:  %08b\n", value);

	if (raw_read8(TMP432_CONFIGURATION1_R, &value) == EC_SUCCESS)
		ccprintf("CONFIG1: %08b\n", value);

	if (raw_read8(TMP432_CONFIGURATION2_R, &value) == EC_SUCCESS)
		ccprintf("CONFIG2: %08b\n", value);

	return EC_SUCCESS;
}

/**
 * Print status of a PWM channel.
 *
 * @param ch		Channel to print.
 */
static void print_channel(enum pwm_channel ch)
{
	if (pwm_get_enabled(ch))
		ccprintf("  %d: %d%%\n", ch, pwm_get_duty(ch));
	else
		ccprintf("  %d: disabled\n", ch);
}

int verify_key(int c, int r, int pressed)
{
	struct host_cmd_handler_args args;
	uint8_t mkbp_out[KEYBOARD_COLS];
	int i;

	if (c >= 0 && r >= 0) {
		ccprintf("Verify %s (%d, %d)\n", action[pressed], c, r);
		set_state(c, r, pressed);
	} else {
		ccprintf("Verify last state\n");
	}

	args.version = 0;
	args.command = EC_CMD_MKBP_STATE;
	args.params = NULL;
	args.params_size = 0;
	args.response = mkbp_out;
	args.response_max = sizeof(mkbp_out);
	args.response_size = 0;

	if (host_command_process(&args) != EC_RES_SUCCESS)
		return 0;

	for (i = 0; i < KEYBOARD_COLS; ++i)
		if (mkbp_out[i] != state[i])
			return 0;

	return 1;
}

static int command_power(int argc, char **argv)
{
	int v;

	if (argc < 2) {
		enum power_state_t state;

		state = PSTATE_UNKNOWN;
		if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
			state = PSTATE_OFF;
		if (chipset_in_state(CHIPSET_STATE_SUSPEND))
			state = PSTATE_SUSPEND;
		if (chipset_in_state(CHIPSET_STATE_ON))
			state = PSTATE_ON;
		ccprintf("%s\n", state_name[state]);

		return EC_SUCCESS;
	}

	if (!parse_bool(argv[1], &v))
		return EC_ERROR_PARAM1;

	power_request = v ? POWER_REQ_ON : POWER_REQ_OFF;
	ccprintf("Requesting power %s\n", power_req_name[power_request]);
	task_wake(TASK_ID_CHIPSET);

	return EC_SUCCESS;
}

static int motion_sense_read_fifo(int argc, char **argv)
{
	int count, i;
	struct ec_response_motion_sensor_data v;

	if (argc < 1)
		return EC_ERROR_PARAM_COUNT;

	/* Limit the amount of data to avoid saturating the UART buffer */
	count = MIN(queue_count(&motion_sense_fifo), 16);
	for (i = 0; i < count; i++) {
		queue_peek_units(&motion_sense_fifo, &v, i, 1);
		if (v.flags & (MOTIONSENSE_SENSOR_FLAG_TIMESTAMP |
			       MOTIONSENSE_SENSOR_FLAG_FLUSH)) {
			uint64_t timestamp;
			memcpy(&timestamp, v.data, sizeof(v.data));
			ccprintf("Timestamp: 0x%016lx%s\n", timestamp,
				 (v.flags & MOTIONSENSE_SENSOR_FLAG_FLUSH ?
				  " - Flush" : ""));
		} else {
			ccprintf("%d %d: %-5d %-5d %-5d\n", i, v.sensor_num,
				 v.data[X], v.data[Y], v.data[Z]);
		}
	}
	return EC_SUCCESS;
}

static int wait_until_stop_sent(int port)
{
	timestamp_t deadline;
	timestamp_t slow_cutoff;
	uint8_t is_slow;

	deadline = slow_cutoff = get_time();
	deadline.val += TIMEOUT_STOP_SENT_US;
	slow_cutoff.val += SLOW_STOP_SENT_US;

	while (STM32_I2C_CR1(port) & (1 << 9)) {
		if (timestamp_expired(deadline, NULL)) {
			ccprintf("Stop event deadline passed:\ttask=%d"
							"\tCR1=%016b\n",
				(int)task_get_current(), STM32_I2C_CR1(port));
			return EC_ERROR_TIMEOUT;
		}

		if (is_slow) {
			/* If we haven't gotten a fast response, sleep */
			usleep(STOP_SENT_RETRY_US);
		} else {
			/* Check to see if this request is taking a while */
			if (timestamp_expired(slow_cutoff, NULL)) {
				ccprintf("Stop event taking a while: task=%d",
					(int)task_get_current());
				is_slow = 1;
			}
		}
	}

	return EC_SUCCESS;
}

static int command_hang_detect(int argc, char **argv)
{
	ccprintf("flags:  0x%x\n", hdparams.flags);

	ccputs("event:  ");
	if (hdparams.host_event_timeout_msec)
		ccprintf("%d ms\n", hdparams.host_event_timeout_msec);
	else
		ccputs("disabled\n");

	ccputs("reboot: ");
	if (hdparams.warm_reboot_timeout_msec)
		ccprintf("%d ms\n", hdparams.warm_reboot_timeout_msec);
	else
		ccputs("disabled\n");

	ccputs("status: ");
	if (active)
		ccprintf("active for %s\n",
			 timeout_will_reboot ? "reboot" : "event");
	else
		ccputs("inactive\n");

	return EC_SUCCESS;
}

static int command_crash(int argc, char **argv)
{
	if (argc < 2)
		return EC_ERROR_PARAM1;

	if (!strcasecmp(argv[1], "assert")) {
		ASSERT(0);
	} else if (!strcasecmp(argv[1], "divzero")) {
		int zero = 0;

		cflush();
		if (argc >= 3 && !strcasecmp(argv[2], "unsigned"))
			ccprintf("%08x", (unsigned long)1 / zero);
		else
			ccprintf("%08x", (long)1 / zero);
#ifdef CONFIG_CMD_STACKOVERFLOW
	} else if (!strcasecmp(argv[1], "stack")) {
		stack_overflow_recurse(1);
#endif
	} else if (!strcasecmp(argv[1], "unaligned")) {
		cflush();
		ccprintf("%08x", *(volatile int *)0xcdef);
	} else if (!strcasecmp(argv[1], "watchdog")) {
		while (1)
			;
	} else {
		return EC_ERROR_PARAM1;
	}

	/* Everything crashes, so shouldn't get back here */
	return EC_ERROR_UNKNOWN;
}