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Message-ID: <d9728160-001c-9e29-b195-0cbc82b45184@roeck-us.net> Date: Fri, 25 Nov 2022 17:49:27 -0800 From: Guenter Roeck <linux@...ck-us.net> To: Aleksa Savic <savicaleksa83@...il.com>, linux-hwmon@...r.kernel.org Cc: leonard.anderweit@...il.com, Jack Doan <me@...kdoan.com>, Jean Delvare <jdelvare@...e.com>, Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] hwmon: (aquacomputer_d5next) Add support for Quadro flow sensor pulses On 11/25/22 13:55, Aleksa Savic wrote: > Add support for reading and writing flow sensor pulses value on > the Aquacomputer Quadro. Implemented by Leonard Anderweit [1]. > > [1] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/pull/45 > > Originally-from: Leonard Anderweit <leonard.anderweit@...il.com> > Signed-off-by: Aleksa Savic <savicaleksa83@...il.com> > --- > Documentation/hwmon/aquacomputer_d5next.rst | 3 +- > drivers/hwmon/aquacomputer_d5next.c | 68 ++++++++++++++++----- > 2 files changed, 55 insertions(+), 16 deletions(-) > > diff --git a/Documentation/hwmon/aquacomputer_d5next.rst b/Documentation/hwmon/aquacomputer_d5next.rst > index 15226346434d..637bdbc8fcad 100644 > --- a/Documentation/hwmon/aquacomputer_d5next.rst > +++ b/Documentation/hwmon/aquacomputer_d5next.rst > @@ -39,7 +39,7 @@ current. > > The Quadro exposes four physical and sixteen virtual temperature sensors, a flow > sensor and four PWM controllable fans, along with their speed (in RPM), power, > -voltage and current. > +voltage and current. Flow sensor pulses are also available. > > The Farbwerk and Farbwerk 360 expose four temperature sensors. Additionally, > sixteen virtual temperature sensors of the Farbwerk 360 are exposed. > @@ -64,6 +64,7 @@ Sysfs entries > temp[1-20]_input Physical/virtual temperature sensors (in millidegrees Celsius) > temp[1-4]_offset Temperature sensor correction offset (in millidegrees Celsius) > fan[1-8]_input Pump/fan speed (in RPM) / Flow speed (in dL/h) > +fan5_pulses Quadro flow sensor pulses > power[1-8]_input Pump/fan power (in micro Watts) > in[0-7]_input Pump/fan voltage (in milli Volts) > curr[1-8]_input Pump/fan current (in milli Amperes) > diff --git a/drivers/hwmon/aquacomputer_d5next.c b/drivers/hwmon/aquacomputer_d5next.c > index 49d3f9876fe8..77a3ac33d4ac 100644 > --- a/drivers/hwmon/aquacomputer_d5next.c > +++ b/drivers/hwmon/aquacomputer_d5next.c > @@ -136,6 +136,7 @@ static u8 quadro_sensor_fan_offsets[] = { 0x70, 0x7D, 0x8A, 0x97 }; > > /* Control report offsets for the Quadro */ > #define QUADRO_TEMP_CTRL_OFFSET 0xA > +#define QUADRO_FLOW_PULSES_CTRL_OFFSET 0x6 > static u16 quadro_ctrl_fan_offsets[] = { 0x37, 0x8c, 0xe1, 0x136 }; /* Fan speed offsets (0-100%) */ > > /* Specs of High Flow Next flow sensor */ > @@ -303,6 +304,7 @@ struct aqc_data { > u16 temp_ctrl_offset; > u16 power_cycle_count_offset; > u8 flow_sensor_offset; > + u8 flow_pulses_ctrl_offset; > > /* General info, same across all devices */ > u32 serial_number[2]; > @@ -461,20 +463,32 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3 > } > break; > case hwmon_fan: > - switch (priv->kind) { > - case highflownext: > - /* Special case to support flow sensor, water quality and conductivity */ > - if (channel < 3) > - return 0444; > - break; > - case quadro: > - /* Special case to support flow sensor */ > - if (channel < priv->num_fans + 1) > - return 0444; > + switch (attr) { > + case hwmon_fan_input: > + case hwmon_fan_label: > + switch (priv->kind) { > + case highflownext: > + /* Special case to support flow sensor, water quality > + * and conductivity > + */ > + if (channel < 3) > + return 0444; > + break; > + case quadro: > + /* Special case to support flow sensor */ > + if (channel < priv->num_fans + 1) > + return 0444; > + break; > + default: > + if (channel < priv->num_fans) > + return 0444; > + break; > + } > break; > - default: > - if (channel < priv->num_fans) > - return 0444; > + case hwmon_fan_pulses: > + /* Special case for Quadro flow sensor */ > + if (priv->kind == quadro && channel == priv->num_fans) > + return 0644; > break; I think "default:" is now missing here. Guenter > } > break; > @@ -552,7 +566,18 @@ static int aqc_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, > } > break; > case hwmon_fan: > - *val = priv->speed_input[channel]; > + switch (attr) { > + case hwmon_fan_input: > + *val = priv->speed_input[channel]; > + break; > + case hwmon_fan_pulses: > + ret = aqc_get_ctrl_val(priv, priv->flow_pulses_ctrl_offset, val); > + if (ret < 0) > + return ret; > + break; > + default: > + break; > + } > break; > case hwmon_power: > *val = priv->power_input[channel]; > @@ -632,6 +657,18 @@ static int aqc_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, > return -EOPNOTSUPP; > } > break; > + case hwmon_fan: > + switch (attr) { > + case hwmon_fan_pulses: > + val = clamp_val(val, 10, 1000); > + ret = aqc_set_ctrl_val(priv, priv->flow_pulses_ctrl_offset, val); > + if (ret < 0) > + return ret; > + break; > + default: > + break; > + } > + break; > case hwmon_pwm: > switch (attr) { > case hwmon_pwm_input: > @@ -691,7 +728,7 @@ static const struct hwmon_channel_info *aqc_info[] = { > HWMON_F_INPUT | HWMON_F_LABEL, > HWMON_F_INPUT | HWMON_F_LABEL, > HWMON_F_INPUT | HWMON_F_LABEL, > - HWMON_F_INPUT | HWMON_F_LABEL, > + HWMON_F_INPUT | HWMON_F_LABEL | HWMON_F_PULSES, > HWMON_F_INPUT | HWMON_F_LABEL, > HWMON_F_INPUT | HWMON_F_LABEL, > HWMON_F_INPUT | HWMON_F_LABEL), > @@ -1000,6 +1037,7 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id) > priv->buffer_size = QUADRO_CTRL_REPORT_SIZE; > > priv->flow_sensor_offset = QUADRO_FLOW_SENSOR_OFFSET; > + priv->flow_pulses_ctrl_offset = QUADRO_FLOW_PULSES_CTRL_OFFSET; > priv->power_cycle_count_offset = QUADRO_POWER_CYCLES; > > priv->temp_label = label_temp_sensors;
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