linux-kernel - Re: [PATCH v2 1/2] test_power: Add CHARGE

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Message-ID: <20191014054621.lopb7keyo7iej567@earth.universe>
Date:   Mon, 14 Oct 2019 07:46:21 +0200
From:   Sebastian Reichel <sre@...nel.org>
To:     lecopzer@...il.com
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        yj.chiang@...iatek.com, lecopzer.chen@...iatek.com
Subject: Re: [PATCH v2 1/2] test_power: Add CHARGE_COUNTER properties

Hi,

On Fri, Sep 13, 2019 at 02:25:59AM +0800, lecopzer@...il.com wrote:
> CHARGE_COUNTER is really general in other power supply drivers and
> Android also has an interface to monitor CHARGE_COUNTER, so let's
> add it into test framework.
> 
> Set default as -1000 is because the default status is
> POWER_SUPPLY_STATUS_DISCHARGING, which means the counter should be
> negative, and 1000 means not zero but small enough.
> 
> Signed-off-by: Lecopzer Chen <lecopzer.chen@...iatek.com>
> ---

Thanks, queued.

-- Sebastian

>  drivers/power/supply/test_power.c | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/drivers/power/supply/test_power.c b/drivers/power/supply/test_power.c
> index c3cad2b6daba..70db8d20e138 100644
> --- a/drivers/power/supply/test_power.c
> +++ b/drivers/power/supply/test_power.c
> @@ -33,6 +33,7 @@ static int battery_present		= 1; /* true */
>  static int battery_technology		= POWER_SUPPLY_TECHNOLOGY_LION;
>  static int battery_capacity		= 50;
>  static int battery_voltage		= 3300;
> +static int battery_charge_counter	= -1000;
>  
>  static bool module_initialized;
>  
> @@ -100,6 +101,9 @@ static int test_power_get_battery_property(struct power_supply *psy,
>  	case POWER_SUPPLY_PROP_CHARGE_NOW:
>  		val->intval = battery_capacity;
>  		break;
> +	case POWER_SUPPLY_PROP_CHARGE_COUNTER:
> +		val->intval = battery_charge_counter;
> +		break;
>  	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
>  	case POWER_SUPPLY_PROP_CHARGE_FULL:
>  		val->intval = 100;
> @@ -135,6 +139,7 @@ static enum power_supply_property test_power_battery_props[] = {
>  	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
>  	POWER_SUPPLY_PROP_CHARGE_FULL,
>  	POWER_SUPPLY_PROP_CHARGE_NOW,
> +	POWER_SUPPLY_PROP_CHARGE_COUNTER,
>  	POWER_SUPPLY_PROP_CAPACITY,
>  	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
>  	POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
> @@ -447,6 +452,21 @@ static int param_set_battery_voltage(const char *key,
>  
>  #define param_get_battery_voltage param_get_int
>  
> +static int param_set_battery_charge_counter(const char *key,
> +					const struct kernel_param *kp)
> +{
> +	int tmp;
> +
> +	if (1 != sscanf(key, "%d", &tmp))
> +		return -EINVAL;
> +
> +	battery_charge_counter = tmp;
> +	signal_power_supply_changed(test_power_supplies[TEST_BATTERY]);
> +	return 0;
> +}
> +
> +#define param_get_battery_charge_counter param_get_int
> +
>  static const struct kernel_param_ops param_ops_ac_online = {
>  	.set = param_set_ac_online,
>  	.get = param_get_ac_online,
> @@ -487,6 +507,11 @@ static const struct kernel_param_ops param_ops_battery_voltage = {
>  	.get = param_get_battery_voltage,
>  };
>  
> +static const struct kernel_param_ops param_ops_battery_charge_counter = {
> +	.set = param_set_battery_charge_counter,
> +	.get = param_get_battery_charge_counter,
> +};
> +
>  #define param_check_ac_online(name, p) __param_check(name, p, void);
>  #define param_check_usb_online(name, p) __param_check(name, p, void);
>  #define param_check_battery_status(name, p) __param_check(name, p, void);
> @@ -495,6 +520,7 @@ static const struct kernel_param_ops param_ops_battery_voltage = {
>  #define param_check_battery_health(name, p) __param_check(name, p, void);
>  #define param_check_battery_capacity(name, p) __param_check(name, p, void);
>  #define param_check_battery_voltage(name, p) __param_check(name, p, void);
> +#define param_check_battery_charge_counter(name, p) __param_check(name, p, void);
>  
>  
>  module_param(ac_online, ac_online, 0644);
> @@ -525,6 +551,10 @@ MODULE_PARM_DESC(battery_capacity, "battery capacity (percentage)");
>  module_param(battery_voltage, battery_voltage, 0644);
>  MODULE_PARM_DESC(battery_voltage, "battery voltage (millivolts)");
>  
> +module_param(battery_charge_counter, battery_charge_counter, 0644);
> +MODULE_PARM_DESC(battery_charge_counter,
> +	"battery charge counter (microampere-hours)");
> +
>  MODULE_DESCRIPTION("Power supply driver for testing");
>  MODULE_AUTHOR("Anton Vorontsov <cbouatmailru@...il.com>");
>  MODULE_LICENSE("GPL");
> -- 
> 2.17.1
> 

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