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/* Copyright 2022 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "battery_smart.h"
#include "charger.h"
#include "driver/charger/rt9490.h"
#include "emul/emul_rt9490.h"
#include "i2c.h"
#include <zephyr/ztest.h>
static const struct emul *emul = EMUL_DT_GET(DT_NODELABEL(rt9490));
static const int chgnum = CHARGER_SOLO;
ZTEST(rt9490_chg, current)
{
struct {
int reg;
int expected; /* expected current in mA */
} testdata[] = { { 0xF, 150 }, { 0x10, 160 }, { 0x64, 1000 },
{ 0xC8, 2000 }, { 0x1F3, 4990 }, { 0x1F4, 5000 } };
for (int i = 0; i < ARRAY_SIZE(testdata); i++) {
int current = -1;
zassert_ok(rt9490_drv.set_current(chgnum, testdata[i].expected),
"case %d failed", i);
zassert_equal(rt9490_emul_peek_reg(emul, RT9490_REG_ICHG_CTRL),
testdata[i].reg >> 8, "case %d failed", i);
zassert_equal(rt9490_emul_peek_reg(emul,
RT9490_REG_ICHG_CTRL + 1),
testdata[i].reg & 0xFF, "case %d failed", i);
zassert_ok(rt9490_drv.get_current(chgnum, ¤t),
"case %d failed", i);
zassert_equal(testdata[i].expected, current, "case %d failed",
i);
}
/* special case: set_current(0) means 150mA */
zassert_ok(rt9490_drv.set_current(chgnum, 0), NULL);
zassert_equal(rt9490_emul_peek_reg(emul, RT9490_REG_ICHG_CTRL), 0,
NULL);
zassert_equal(rt9490_emul_peek_reg(emul, RT9490_REG_ICHG_CTRL + 1), 0xF,
NULL);
/* values outside (150mA, 5000mA) are illegal */
zassert_not_equal(rt9490_drv.set_current(chgnum, 140), 0, NULL);
zassert_not_equal(rt9490_drv.set_current(chgnum, 5001), 0, NULL);
}
ZTEST(rt9490_chg, voltage)
{
struct {
int reg;
int expected; /* expected voltage in mV */
} testdata[] = { { 0x12C, 3000 }, { 0x12D, 3010 }, { 0x12E, 3020 },
{ 0x1A4, 4200 }, { 0x348, 8400 }, { 0x4EC, 12600 },
{ 0x690, 16800 }, { 0x757, 18790 }, { 0x758, 18800 } };
for (int i = 0; i < ARRAY_SIZE(testdata); i++) {
int voltage = -1;
zassert_ok(rt9490_drv.set_voltage(chgnum, testdata[i].expected),
"case %d failed", i);
zassert_equal(rt9490_emul_peek_reg(emul, RT9490_REG_VCHG_CTRL),
testdata[i].reg >> 8, "case %d failed", i);
zassert_equal(rt9490_emul_peek_reg(emul,
RT9490_REG_VCHG_CTRL + 1),
testdata[i].reg & 0xFF, "case %d failed", i);
zassert_ok(rt9490_drv.get_voltage(chgnum, &voltage),
"case %d failed", i);
zassert_equal(testdata[i].expected, voltage, "case %d failed",
i);
}
/* special case: set_voltage(0) means 3.0V */
zassert_ok(rt9490_drv.set_voltage(chgnum, 0), NULL);
zassert_equal(rt9490_emul_peek_reg(emul, RT9490_REG_VCHG_CTRL), 0x1,
NULL);
zassert_equal(rt9490_emul_peek_reg(emul, RT9490_REG_VCHG_CTRL + 1),
0x2C, NULL);
/* values outside (3V, 18.8V) are illegal */
zassert_not_equal(rt9490_drv.set_voltage(chgnum, 2999), 0, NULL);
zassert_not_equal(rt9490_drv.set_voltage(chgnum, 18801), 0, NULL);
}
ZTEST(rt9490_chg, otg)
{
struct {
int reg_v, reg_c, expected_v, expected_c;
} testdata[] = { { 0x0, 0x3, 2800, 120 },
{ 0x1, 0x4, 2810, 160 },
{ 0xDC, 0x4B, 5000, 3000 },
{ 0x77F, 0x52, 21990, 3280 },
{ 0x780, 0x53, 22000, 3320 } };
for (int i = 0; i < ARRAY_SIZE(testdata); i++) {
zassert_ok(rt9490_drv.set_otg_current_voltage(
chgnum, testdata[i].expected_c,
testdata[i].expected_v),
"case %d failed", i);
zassert_equal(rt9490_emul_peek_reg(emul, RT9490_REG_VOTG_REGU),
testdata[i].reg_v >> 8, "case %d failed", i);
zassert_equal(rt9490_emul_peek_reg(emul,
RT9490_REG_VOTG_REGU + 1),
testdata[i].reg_v & 0xFF, "case %d failed", i);
zassert_equal(rt9490_emul_peek_reg(emul, RT9490_REG_IOTG_REGU),
testdata[i].reg_c, "case %d failed", i);
break;
}
/* check out-of-range inputs */
zassert_not_equal(rt9490_drv.set_otg_current_voltage(chgnum, 119, 5000),
0, NULL);
zassert_not_equal(rt9490_drv.set_otg_current_voltage(chgnum, 3330,
5000),
0, NULL);
zassert_not_equal(rt9490_drv.set_otg_current_voltage(chgnum, 3000,
2700),
0, NULL);
zassert_not_equal(rt9490_drv.set_otg_current_voltage(chgnum, 3000,
23000),
0, NULL);
/* check enable/disable functions */
zassert_equal(rt9490_drv.enable_otg_power(chgnum, true), 0, NULL);
zassert_equal(rt9490_drv.is_sourcing_otg_power(chgnum, 0), true, NULL);
zassert_equal(rt9490_drv.enable_otg_power(chgnum, false), 0, NULL);
zassert_equal(rt9490_drv.is_sourcing_otg_power(chgnum, 0), false, NULL);
}
ZTEST(rt9490_chg, aicr)
{
struct {
int reg;
int expected; /* expected current in mA */
} testdata[] = { { 0xA, 100 },
{ 0xB, 110 },
{ 0x32, 500 },
{ 0x12C, 3000 },
{ 0x14A, 3300 } };
int current = -1;
for (int i = 0; i < ARRAY_SIZE(testdata); i++) {
zassert_ok(rt9490_drv.set_input_current_limit(
chgnum, testdata[i].expected),
"case %d failed", i);
zassert_equal(rt9490_emul_peek_reg(emul, RT9490_REG_AICR_CTRL),
testdata[i].reg >> 8, "case %d failed", i);
zassert_equal(rt9490_emul_peek_reg(emul,
RT9490_REG_AICR_CTRL + 1),
testdata[i].reg & 0xFF, "case %d failed", i);
zassert_ok(rt9490_drv.get_input_current_limit(chgnum, ¤t),
"case %d failed", i);
zassert_equal(testdata[i].expected, current, "case %d failed",
i);
}
/*
* test values outside the designed range.
* returns 100mA if input < 100mA, and 3300mA if greater than 3300mA.
*/
zassert_ok(rt9490_drv.set_input_current_limit(chgnum, 90), NULL);
zassert_ok(rt9490_drv.get_input_current_limit(chgnum, ¤t), "");
zassert_equal(100, current, "");
zassert_ok(rt9490_drv.set_input_current_limit(chgnum, 3400), NULL);
zassert_ok(rt9490_drv.get_input_current_limit(chgnum, ¤t), "");
zassert_equal(3300, current, "");
}
ZTEST(rt9490_chg, test_charge_ramp_hw_ramp)
{
zassert_ok(rt9490_drv.set_hw_ramp(chgnum, 1), NULL);
zassert_true(rt9490_emul_peek_reg(emul, RT9490_REG_CHG_CTRL0) &
RT9490_EN_AICC,
NULL);
zassert_ok(rt9490_drv.ramp_is_stable(chgnum), NULL);
zassert_true(rt9490_drv.ramp_is_detected(chgnum), NULL);
zassert_ok(rt9490_drv.set_input_current_limit(chgnum, 500), NULL);
zassert_equal(500, rt9490_drv.ramp_get_current_limit(chgnum), NULL);
zassert_ok(rt9490_drv.set_hw_ramp(chgnum, 0), NULL);
zassert_false(rt9490_emul_peek_reg(emul, RT9490_REG_CHG_CTRL0) &
RT9490_EN_AICC,
NULL);
}
ZTEST(rt9490_chg, test_option)
{
int opt;
zassert_ok(rt9490_drv.get_option(CHARGER_NUM, &opt), NULL);
zassert_true(opt == 0, NULL);
zassert_ok(rt9490_drv.set_option(CHARGER_NUM, 5566), NULL);
zassert_ok(rt9490_drv.get_option(CHARGER_NUM, &opt), NULL);
zassert_true(opt == 0, NULL);
}
ZTEST(rt9490_chg, misc_info)
{
int status;
int device_id;
rt9490_drv.dump_registers(chgnum);
zassert_ok(rt9490_drv.device_id(chgnum, &device_id), NULL);
zassert_equal((device_id >> 3) & 0xF, 0xC, NULL);
zassert_ok(rt9490_drv.get_status(chgnum, &status), NULL);
zassert_equal(status, 0, NULL);
/* check the mapping from jeita status to smart battery charger status
*/
zassert_ok(rt9490_emul_write_reg(emul, RT9490_REG_CHG_STATUS4,
RT9490_JEITA_HOT_MASK));
zassert_ok(rt9490_drv.get_status(chgnum, &status), NULL);
zassert_equal(status, CHARGER_RES_HOT | CHARGER_RES_OR, NULL);
zassert_ok(rt9490_emul_write_reg(emul, RT9490_REG_CHG_STATUS4,
RT9490_JEITA_WARM_MASK));
zassert_ok(rt9490_drv.get_status(chgnum, &status), NULL);
zassert_equal(status, CHARGER_RES_HOT, NULL);
zassert_ok(rt9490_emul_write_reg(emul, RT9490_REG_CHG_STATUS4,
RT9490_JEITA_COOL_MASK));
zassert_ok(rt9490_drv.get_status(chgnum, &status), NULL);
zassert_equal(status, CHARGER_RES_COLD, NULL);
zassert_ok(rt9490_emul_write_reg(emul, RT9490_REG_CHG_STATUS4,
RT9490_JEITA_COLD_MASK));
zassert_ok(rt9490_drv.get_status(chgnum, &status), NULL);
zassert_equal(status, CHARGER_RES_COLD | CHARGER_RES_UR, NULL);
}
static void reset_emul(void *fixture)
{
rt9490_emul_reset_regs(emul);
rt9490_drv.init(chgnum);
}
ZTEST_SUITE(rt9490_chg, NULL, NULL, reset_emul, NULL, NULL);
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