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(unknown [10.20.151.219]) by mta-06.privateemail.com (Postfix) with ESMTPA id 80E83180009F; Fri, 23 Jul 2021 14:58:07 -0400 (EDT) From: Hamza Mahfooz To: linux-kernel@vger.kernel.org Cc: Bastien Nocera , =?UTF-8?q?Filipe=20La=C3=ADns?= , Hamza Mahfooz , Jiri Kosina , Benjamin Tissoires , linux-input@vger.kernel.org Subject: [PATCH v3] HID: logitech-hidpp: battery: provide CAPACITY property for newer devices Date: Fri, 23 Jul 2021 14:57:20 -0400 Message-Id: <20210723185720.29314-1-someguy@effective-light.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For devices that only support the BATTERY_VOLTAGE (0x1001) feature, UPower requires the additional information provided by this patch, to set them up. Signed-off-by: Hamza Mahfooz --- v2: use ARRAY_SIZE() and set voltages[]'s size to 100 v3: add a check to ensure that exactly 100 elements are in voltages[] --- drivers/hid/hid-logitech-hidpp.c | 32 +++++++++++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 61635e629469..4921823144de 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -1331,6 +1331,33 @@ static int hidpp20_battery_get_battery_voltage(struct hidpp_device *hidpp, return 0; } +static int hidpp20_map_battery_capacity(int voltage) +{ + static const int voltages[] = { + 4186, 4156, 4143, 4133, 4122, 4113, 4103, 4094, 4086, 4075, + 4067, 4059, 4051, 4043, 4035, 4027, 4019, 4011, 4003, 3997, + 3989, 3983, 3976, 3969, 3961, 3955, 3949, 3942, 3935, 3929, + 3922, 3916, 3909, 3902, 3896, 3890, 3883, 3877, 3870, 3865, + 3859, 3853, 3848, 3842, 3837, 3833, 3828, 3824, 3819, 3815, + 3811, 3808, 3804, 3800, 3797, 3793, 3790, 3787, 3784, 3781, + 3778, 3775, 3772, 3770, 3767, 3764, 3762, 3759, 3757, 3754, + 3751, 3748, 3744, 3741, 3737, 3734, 3730, 3726, 3724, 3720, + 3717, 3714, 3710, 3706, 3702, 3697, 3693, 3688, 3683, 3677, + 3671, 3666, 3662, 3658, 3654, 3646, 3633, 3612, 3579, 3537 + }; + + int i; + + BUILD_BUG_ON(ARRAY_SIZE(voltages) != 100); + + for (i = 0; i < ARRAY_SIZE(voltages); i++) { + if (voltage >= voltages[i]) + return ARRAY_SIZE(voltages) - i; + } + + return 0; +} + static int hidpp20_query_battery_voltage_info(struct hidpp_device *hidpp) { u8 feature_type; @@ -1354,6 +1381,7 @@ static int hidpp20_query_battery_voltage_info(struct hidpp_device *hidpp) hidpp->battery.status = status; hidpp->battery.voltage = voltage; + hidpp->battery.capacity = hidpp20_map_battery_capacity(voltage); hidpp->battery.level = level; hidpp->battery.charge_type = charge_type; hidpp->battery.online = status != POWER_SUPPLY_STATUS_NOT_CHARGING; @@ -1378,6 +1406,7 @@ static int hidpp20_battery_voltage_event(struct hidpp_device *hidpp, if (voltage != hidpp->battery.voltage || status != hidpp->battery.status) { hidpp->battery.voltage = voltage; + hidpp->battery.capacity = hidpp20_map_battery_capacity(voltage); hidpp->battery.status = status; hidpp->battery.level = level; hidpp->battery.charge_type = charge_type; @@ -3717,7 +3746,8 @@ static int hidpp_initialize_battery(struct hidpp_device *hidpp) num_battery_props = ARRAY_SIZE(hidpp_battery_props) - 3; if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE || - hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_PERCENTAGE) + hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_PERCENTAGE || + hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_VOLTAGE) battery_props[num_battery_props++] = POWER_SUPPLY_PROP_CAPACITY; -- 2.32.0