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fuel_gauge: sbs_gauge: Enable MFR ACC write

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Update the SBS Gauge driver that implements the fuel_gauge API to implement
a set_property function allowing the writing of an SBS word to the
manufacturer access register per the SBS spec.

Includes an update to the SBS Gauge emulator and SBS fuel gauge tests to
weakly verify the code runs.

Signed-off-by: Aaron Massey <aaronmassey@google.com>
This commit is contained in:
Aaron Massey 2022-12-01 10:42:58 -07:00 • committed by Carles Cufí
commit c4be38dec1
3 changed files with 149 additions and 3 deletions
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11
subsys/emul/i2c/emul_sbs_gauge.c
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@ -25,7 +25,7 @@ LOG_MODULE_REGISTER(sbs_sbs_gauge);
/** Run-time data used by the emulator */
struct sbs_gauge_emul_data {
/* Stub */
uint16_t mfr_acc;
};
/** Static configuration for the emulator */
@ -36,10 +36,13 @@ struct sbs_gauge_emul_cfg {
static int emul_sbs_gauge_reg_write(const struct emul *target, int reg, int val)
{
ARG_UNUSED(target);
struct sbs_gauge_emul_data *data = target->data;
LOG_INF("write %x = %x", reg, val);
switch (reg) {
case SBS_GAUGE_CMD_MANUFACTURER_ACCESS:
data->mfr_acc = val;
break;
default:
LOG_INF("Unknown write %x", reg);
return -EIO;
@ -50,10 +53,12 @@ static int emul_sbs_gauge_reg_write(const struct emul *target, int reg, int val)
static int emul_sbs_gauge_reg_read(const struct emul *target, int reg, int *val)
{
ARG_UNUSED(target);
struct sbs_gauge_emul_data *data = target->data;
switch (reg) {
case SBS_GAUGE_CMD_MANUFACTURER_ACCESS:
*val = data->mfr_acc;
break;
case SBS_GAUGE_CMD_VOLTAGE:
case SBS_GAUGE_CMD_AVG_CURRENT:
case SBS_GAUGE_CMD_TEMP: