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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /test/charge_ramp.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-release-R98-14388.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'test/charge_ramp.c')
-rw-r--r--test/charge_ramp.c526
1 files changed, 0 insertions, 526 deletions
diff --git a/test/charge_ramp.c b/test/charge_ramp.c
deleted file mode 100644
index 84cac57b8e..0000000000
--- a/test/charge_ramp.c
+++ /dev/null
@@ -1,526 +0,0 @@
-/* Copyright 2015 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- * Test AC input current ramp.
- */
-
-#include "charge_manager.h"
-#include "charge_ramp.h"
-#include "common.h"
-#include "console.h"
-#include "gpio.h"
-#include "hooks.h"
-#include "task.h"
-#include "test_util.h"
-#include "timer.h"
-#include "usb_charge.h"
-#include "util.h"
-
-#define TASK_EVENT_OVERCURRENT (1 << 0)
-
-#define RAMP_STABLE_DELAY (120*SECOND)
-
-/*
- * Time to delay for detecting the charger type. This value follows
- * the value in common/charge_ramp.c, but must be less than the real
- * CHARGE_DETECT_DELAY so we guarantee we wake up before the ramp
- * has started.
- */
-#define CHARGE_DETECT_DELAY_TEST (CHARGE_DETECT_DELAY - 100*MSEC)
-
-static int system_load_current_ma;
-static int vbus_low_current_ma = 500;
-static int overcurrent_current_ma = 3000;
-
-static int charge_limit_ma;
-
-/* Mock functions */
-
-__override uint8_t board_get_usb_pd_port_count(void)
-{
- return CONFIG_USB_PD_PORT_MAX_COUNT;
-}
-
-/* Override test_mockable implementations in charge_ramp module */
-int chg_ramp_allowed(int port, int supplier)
-{
- /* Ramp for TEST4-TEST8 */
- return supplier > CHARGE_SUPPLIER_TEST3;
-}
-
-int chg_ramp_max(int port, int supplier, int sup_curr)
-{
- if (supplier == CHARGE_SUPPLIER_TEST7)
- return 1600;
- else if (supplier == CHARGE_SUPPLIER_TEST8)
- return 2400;
- else
- return 3000;
-}
-
-/* Mock bc12_ports[] array to make linker happy */
-struct bc12_config bc12_ports[0];
-
-int charge_is_consuming_full_input_current(void)
-{
- return charge_limit_ma <= system_load_current_ma;
-}
-
-int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state)
-{
- return MIN(system_load_current_ma, charge_limit_ma) >
- vbus_low_current_ma;
-}
-
-void board_set_charge_limit(int port, int supplier, int limit_ma,
- int max_ma, int max_mv)
-{
- charge_limit_ma = limit_ma;
- if (charge_limit_ma > overcurrent_current_ma)
- task_set_event(TASK_ID_TEST_RUNNER, TASK_EVENT_OVERCURRENT);
-}
-
-/* Test utilities */
-
-static void plug_charger_with_ts(int supplier_type, int port, int min_current,
- int vbus_low_current, int overcurrent_current,
- timestamp_t reg_time)
-{
- vbus_low_current_ma = vbus_low_current;
- overcurrent_current_ma = overcurrent_current;
- chg_ramp_charge_supplier_change(port, supplier_type, min_current,
- reg_time, 0);
-}
-
-static void plug_charger(int supplier_type, int port, int min_current,
- int vbus_low_current, int overcurrent_current)
-{
- plug_charger_with_ts(supplier_type, port, min_current,
- vbus_low_current, overcurrent_current,
- get_time());
-}
-
-static void unplug_charger(void)
-{
- chg_ramp_charge_supplier_change(CHARGE_PORT_NONE, CHARGE_SUPPLIER_NONE,
- 0, get_time(), 0);
-}
-
-static int unplug_charger_and_check(void)
-{
- unplug_charger();
- usleep(CHARGE_DETECT_DELAY_TEST);
- return charge_limit_ma == 0;
-}
-
-static int wait_stable_no_overcurrent(void)
-{
- return task_wait_event(RAMP_STABLE_DELAY) != TASK_EVENT_OVERCURRENT;
-}
-
-static int is_in_range(int x, int min, int max)
-{
- return x >= min && x <= max;
-}
-
-/* Tests */
-
-static int test_no_ramp(void)
-{
- system_load_current_ma = 3000;
- /* A powerful charger, but hey, you're not allowed to ramp! */
- plug_charger(CHARGE_SUPPLIER_TEST1, 0, 500, 3000, 3000);
- /*
- * NOTE: Since this is currently the first test being run, give the
- * charge ramp task enough time to actually transition states and set
- * the charge limit. This just needs at least transition to the
- * CHG_RAMP_OVERCURRENT_DETECT state.
- */
- usleep(CHARGE_DETECT_DELAY_TEST + 200*MSEC);
- /* That's right. Start at 500 mA */
- TEST_ASSERT(charge_limit_ma == 500);
- TEST_ASSERT(wait_stable_no_overcurrent());
- /* ... and stays at 500 mA */
- TEST_ASSERT(charge_limit_ma == 500);
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_full_ramp(void)
-{
- system_load_current_ma = 3000;
- /* Now you get to ramp with this 3A charger */
- plug_charger(CHARGE_SUPPLIER_TEST4, 0, 500, 3000, 3000);
- usleep(CHARGE_DETECT_DELAY_TEST);
- /* Start with something around 500 mA */
- TEST_ASSERT(is_in_range(charge_limit_ma, 500, 800));
- TEST_ASSERT(wait_stable_no_overcurrent());
- /* And ramp up to 3A */
- TEST_ASSERT(charge_limit_ma == 3000);
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_vbus_dip(void)
-{
- system_load_current_ma = 3000;
- /* VBUS dips too low right before the charger shuts down */
- plug_charger(CHARGE_SUPPLIER_TEST5, 0, 1000, 1500, 1600);
-
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(is_in_range(charge_limit_ma, 1300, 1500));
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_overcurrent(void)
-{
- system_load_current_ma = 3000;
- /* Huh...VBUS doesn't dip before the charger shuts down */
- plug_charger(CHARGE_SUPPLIER_TEST6, 0, 500, 3000, 1500);
- usleep(CHARGE_DETECT_DELAY_TEST);
- /* Ramp starts at 500 mA */
- TEST_ASSERT(is_in_range(charge_limit_ma, 500, 700));
-
- while (task_wait_event(RAMP_STABLE_DELAY) == TASK_EVENT_OVERCURRENT) {
- /* Charger goes away but comes back after 0.6 seconds */
- unplug_charger();
- usleep(MSEC * 600);
- plug_charger(CHARGE_SUPPLIER_TEST6, 0, 500, 3000, 1500);
- usleep(CHARGE_DETECT_DELAY_TEST);
- /* Ramp restarts at 500 mA */
- TEST_ASSERT(is_in_range(charge_limit_ma, 500, 700));
- }
-
- TEST_ASSERT(is_in_range(charge_limit_ma, 1300, 1500));
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_switch_outlet(void)
-{
- int i;
-
- system_load_current_ma = 3000;
- /* Here's a nice powerful charger */
- plug_charger(CHARGE_SUPPLIER_TEST6, 0, 500, 3000, 3000);
-
- /*
- * Now the user decides to move it to a nearby outlet...actually
- * they decide to move it 5 times!
- */
- for (i = 0; i < 5; ++i) {
- usleep(SECOND * 20);
- unplug_charger();
- usleep(SECOND * 1.5);
- plug_charger(CHARGE_SUPPLIER_TEST6, 0, 500, 3000, 3000);
- usleep(CHARGE_DETECT_DELAY_TEST);
- /* Ramp restarts at 500 mA */
- TEST_ASSERT(is_in_range(charge_limit_ma, 500, 700));
- }
-
- /* Should still ramp up to 3000 mA */
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(charge_limit_ma == 3000);
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_fast_switch(void)
-{
- int i;
-
- system_load_current_ma = 3000;
- plug_charger(CHARGE_SUPPLIER_TEST4, 0, 500, 3000, 3000);
-
- /*
- * Here comes that naughty user again, and this time they are switching
- * outlet really quickly. Fortunately this time they only do it twice.
- */
- for (i = 0; i < 2; ++i) {
- usleep(SECOND * 20);
- unplug_charger();
- usleep(600 * MSEC);
- plug_charger(CHARGE_SUPPLIER_TEST4, 0, 500, 3000, 3000);
- usleep(CHARGE_DETECT_DELAY_TEST);
- /* Ramp restarts at 500 mA */
- TEST_ASSERT(is_in_range(charge_limit_ma, 500, 700));
- }
-
- /* Should still ramp up to 3000 mA */
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(charge_limit_ma == 3000);
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_overcurrent_after_switch_outlet(void)
-{
- system_load_current_ma = 3000;
- /* Here's a less powerful charger */
- plug_charger(CHARGE_SUPPLIER_TEST5, 0, 500, 3000, 1500);
- usleep(SECOND * 5);
-
- /* Now the user decides to move it to a nearby outlet */
- unplug_charger();
- usleep(SECOND * 1.5);
- plug_charger(CHARGE_SUPPLIER_TEST5, 0, 500, 3000, 1500);
-
- /* Okay the user is satisified */
- while (task_wait_event(RAMP_STABLE_DELAY) == TASK_EVENT_OVERCURRENT) {
- /* Charger goes away but comes back after 0.6 seconds */
- unplug_charger();
- usleep(MSEC * 600);
- plug_charger(CHARGE_SUPPLIER_TEST5, 0, 500, 3000, 1500);
- usleep(CHARGE_DETECT_DELAY_TEST);
- /* Ramp restarts at 500 mA */
- TEST_ASSERT(is_in_range(charge_limit_ma, 500, 700));
- }
-
- TEST_ASSERT(is_in_range(charge_limit_ma, 1300, 1500));
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_partial_load(void)
-{
- /* We have a 3A charger, but we just want 1.5A */
- system_load_current_ma = 1500;
- plug_charger(CHARGE_SUPPLIER_TEST4, 0, 500, 3000, 2500);
-
- /* We should end up with a little bit more than 1.5A */
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(is_in_range(charge_limit_ma, 1500, 1600));
-
- /* Ok someone just started watching YouTube */
- system_load_current_ma = 2000;
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(is_in_range(charge_limit_ma, 2000, 2100));
-
- /* Somehow the system load increases again */
- system_load_current_ma = 2600;
- while (task_wait_event(RAMP_STABLE_DELAY) == TASK_EVENT_OVERCURRENT) {
- /* Charger goes away but comes back after 0.6 seconds */
- unplug_charger();
- usleep(MSEC * 600);
- plug_charger(CHARGE_SUPPLIER_TEST4, 0, 500, 3000, 2500);
- usleep(CHARGE_DETECT_DELAY_TEST);
- /* Ramp restarts at 500 mA */
- TEST_ASSERT(is_in_range(charge_limit_ma, 500, 700));
- }
-
- /* Alright the charger isn't powerful enough, so we'll stop at 2.5A */
- TEST_ASSERT(is_in_range(charge_limit_ma, 2300, 2500));
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_charge_supplier_stable(void)
-{
- system_load_current_ma = 3000;
- /* The charger says it's of type TEST4 initially */
- plug_charger(CHARGE_SUPPLIER_TEST4, 0, 500, 1500, 1600);
- /*
- * And then it decides it's actually TEST2 after 0.5 seconds,
- * why? Well, this charger is just evil.
- */
- usleep(500 * MSEC);
- plug_charger(CHARGE_SUPPLIER_TEST2, 0, 3000, 3000, 3000);
- /* We should get 3A right away. */
- usleep(SECOND);
- TEST_ASSERT(charge_limit_ma == 3000);
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_charge_supplier_stable_ramp(void)
-{
- system_load_current_ma = 3000;
- /* This time we start with a non-ramp charge supplier */
- plug_charger(CHARGE_SUPPLIER_TEST3, 0, 500, 3000, 3000);
- /*
- * After 0.5 seconds, it's decided that the supplier is actually
- * a 1.5A ramp supplier.
- */
- usleep(500 * MSEC);
- plug_charger(CHARGE_SUPPLIER_TEST5, 0, 500, 1400, 1500);
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(is_in_range(charge_limit_ma, 1200, 1400));
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_charge_supplier_change(void)
-{
- system_load_current_ma = 3000;
- /* Start with a 3A ramp charge supplier */
- plug_charger(CHARGE_SUPPLIER_TEST4, 0, 500, 3000, 3000);
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(charge_limit_ma == 3000);
-
- /* The charger decides to change type to a 1.5A non-ramp supplier */
- plug_charger(CHARGE_SUPPLIER_TEST1, 0, 1500, 3000, 3000);
- usleep(500 * MSEC);
- TEST_ASSERT(charge_limit_ma == 1500);
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(charge_limit_ma == 1500);
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_charge_port_change(void)
-{
- system_load_current_ma = 3000;
- /* Start with a 1.5A ramp charge supplier on port 0 */
- plug_charger(CHARGE_SUPPLIER_TEST5, 0, 500, 1400, 1500);
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(is_in_range(charge_limit_ma, 1200, 1400));
-
- /* Here comes a 2.1A ramp charge supplier on port 1 */
- plug_charger(CHARGE_SUPPLIER_TEST6, 0, 500, 2000, 2100);
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(is_in_range(charge_limit_ma, 1800, 2000));
-
- /* Now we have a 2.5A non-ramp charge supplier on port 0 */
- plug_charger(CHARGE_SUPPLIER_TEST1, 0, 2500, 3000, 3000);
- usleep(SECOND);
- TEST_ASSERT(charge_limit_ma == 2500);
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(charge_limit_ma == 2500);
-
- /* Unplug on port 0 */
- plug_charger(CHARGE_SUPPLIER_TEST6, 0, 500, 2000, 2100);
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(is_in_range(charge_limit_ma, 1800, 2000));
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_vbus_shift(void)
-{
- system_load_current_ma = 3000;
- /*
- * At first, the charger is able to supply up to 1900 mA before
- * the VBUS voltage starts to drop.
- */
- plug_charger(CHARGE_SUPPLIER_TEST6, 0, 500, 1900, 2000);
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(is_in_range(charge_limit_ma, 1700, 1900));
-
- /* The charger heats up and VBUS voltage drops by 100mV */
- vbus_low_current_ma = 1800;
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(is_in_range(charge_limit_ma, 1600, 1800));
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_equal_priority_overcurrent(void)
-{
- int overcurrent_count = 0;
- timestamp_t oc_time = get_time();
-
- system_load_current_ma = 3000;
-
- /*
- * Now we have two charge suppliers of equal priorties plugged into
- * port 0 and port 1. If the active one browns out, charge manager
- * switches to the other one.
- */
- while (1) {
- plug_charger_with_ts(CHARGE_SUPPLIER_TEST4, 0, 500, 3000,
- 2000, oc_time);
- oc_time = get_time();
- oc_time.val += 600 * MSEC;
- if (wait_stable_no_overcurrent())
- break;
- plug_charger_with_ts(CHARGE_SUPPLIER_TEST4, 1, 500, 3000,
- 2000, oc_time);
- oc_time = get_time();
- oc_time.val += 600 * MSEC;
- if (wait_stable_no_overcurrent())
- break;
- if (overcurrent_count++ >= 10) {
- /*
- * Apparently we are in a loop and can never reach
- * stable state.
- */
- unplug_charger();
- return EC_ERROR_UNKNOWN;
- }
- }
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-static int test_ramp_limit(void)
-{
- system_load_current_ma = 3000;
-
- /* Plug in supplier that is limited to 1.6A */
- plug_charger(CHARGE_SUPPLIER_TEST7, 0, 500, 3000, 3000);
- usleep(SECOND);
- TEST_ASSERT(is_in_range(charge_limit_ma, 500, 700));
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(charge_limit_ma == 1600);
-
- /* Switch to supplier that is limited to 2.4A */
- plug_charger(CHARGE_SUPPLIER_TEST8, 1, 500, 3000, 3000);
- usleep(SECOND);
- TEST_ASSERT(is_in_range(charge_limit_ma, 500, 700));
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(charge_limit_ma == 2400);
-
- /* Go back to 1.6A limited, but VBUS goes low before that point */
- plug_charger(CHARGE_SUPPLIER_TEST7, 0, 500, 1200, 1300);
- usleep(SECOND);
- TEST_ASSERT(is_in_range(charge_limit_ma, 500, 700));
- TEST_ASSERT(wait_stable_no_overcurrent());
- TEST_ASSERT(is_in_range(charge_limit_ma, 1000, 1200));
-
- TEST_ASSERT(unplug_charger_and_check());
- return EC_SUCCESS;
-}
-
-void run_test(int argc, char **argv)
-{
- test_reset();
-
- /*
- * If the following test order changes, make sure to add enough time for
- * the charge ramp task to make its first transition after plugging in a
- * charger. See the comment in test_no_ramp().
- */
- RUN_TEST(test_no_ramp);
- RUN_TEST(test_full_ramp);
- RUN_TEST(test_vbus_dip);
- RUN_TEST(test_overcurrent);
- RUN_TEST(test_switch_outlet);
- RUN_TEST(test_fast_switch);
- RUN_TEST(test_overcurrent_after_switch_outlet);
- RUN_TEST(test_partial_load);
- RUN_TEST(test_charge_supplier_stable);
- RUN_TEST(test_charge_supplier_stable_ramp);
- RUN_TEST(test_charge_supplier_change);
- RUN_TEST(test_charge_port_change);
- RUN_TEST(test_vbus_shift);
- RUN_TEST(test_equal_priority_overcurrent);
- RUN_TEST(test_ramp_limit);
-
- test_print_result();
-}