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| author | Yuval Peress <peress@google.com> | 2021-10-03 23:05:13 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-10-05 14:23:58 +0000 |
| commit | 021f2754aa8722288cff2362c470a82ef352436b (patch) | |
| tree | 25c1257f8d92222ff0594617b1af50895ec1bc3e /zephyr/emul/emul_isl923x.c | |
| parent | 366647d37e1a248575d8b74844cafbabf6563374 (diff) | |
| download | chrome-ec-021f2754aa8722288cff2362c470a82ef352436b.tar.gz | |
zephyr: test: isl923x::get_vbus_voltage
Verify all the code paths in get_vbus_voltage (including calculated
mV value).
BRANCH=none
BUG=b:201819565
TEST=zmake configure --test zephyr/test/drivers
Signed-off-by: Yuval Peress <peress@google.com>
Change-Id: I508880a8af30c2d546655424b289d521f3c22626
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3201915
Reviewed-by: Fabio Baltieri <fabiobaltieri@google.com>
Diffstat (limited to 'zephyr/emul/emul_isl923x.c')
| -rw-r--r-- | zephyr/emul/emul_isl923x.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/zephyr/emul/emul_isl923x.c b/zephyr/emul/emul_isl923x.c index f97af88da0..9b3aaec4f5 100644 --- a/zephyr/emul/emul_isl923x.c +++ b/zephyr/emul/emul_isl923x.c @@ -82,6 +82,8 @@ struct isl923x_emul_data { uint16_t ac_prochot_reg; /** Emulated DC PROCHOT register */ uint16_t dc_prochot_reg; + /** Emulated ADC vbus register */ + uint16_t adc_vbus_reg; }; struct isl923x_emul_cfg { @@ -137,6 +139,15 @@ void isl923x_emul_set_learn_mode_enabled(const struct emul *emulator, data->control_1_reg &= ~ISL923X_C1_LEARN_MODE_ENABLE; } +void isl923x_emul_set_adc_vbus(const struct emul *emulator, + uint16_t value) +{ + struct isl923x_emul_data *data = emulator->data; + + /* The VBUS voltage is returned in bits 13:6. The LSB is 96mV. */ + data->adc_vbus_reg = value & GENMASK(13, 6); +} + static int isl923x_emul_read_byte(struct i2c_emul *emul, int reg, uint8_t *val, int bytes) { @@ -234,6 +245,13 @@ static int isl923x_emul_read_byte(struct i2c_emul *emul, int reg, uint8_t *val, else *val = (uint8_t)((data->dc_prochot_reg >> 8) & 0xff); break; + case RAA489000_REG_ADC_VBUS: + __ASSERT_NO_MSG(bytes == 0 || bytes == 1); + if (bytes == 0) + *val = (uint8_t)(data->adc_vbus_reg & 0xff); + else + *val = (uint8_t)((data->adc_vbus_reg >> 8) & 0xff); + break; default: return -EINVAL; } |