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Message-Id: <20221125215515.31380-1-savicaleksa83@gmail.com>
Date: Fri, 25 Nov 2022 22:55:15 +0100
From: Aleksa Savic <savicaleksa83@...il.com>
To: linux-hwmon@...r.kernel.org
Cc: leonard.anderweit@...il.com,
Aleksa Savic <savicaleksa83@...il.com>,
Jack Doan <me@...kdoan.com>, Jean Delvare <jdelvare@...e.com>,
Guenter Roeck <linux@...ck-us.net>,
Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] hwmon: (aquacomputer_d5next) Add support for Quadro flow sensor pulses
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;
}
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;
--
2.38.1
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