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Subject[PATCH 2/2] hwmon: (aquacomputer_d5next) Add support for Octo flow sensor pulses
Date
Add support for reading and writing the flow sensor pulses on
the Aquacomputer Octo. Implemented by David Flemstrom [1].

[1] https://github.com/aleksamagicka/aquacomputer_d5next-hwmon/pull/95

Originally-from: David Flemstrom <david.flemstrom@gmail.com>
Signed-off-by: Aleksa Savic <savicaleksa83@gmail.com>
---
Documentation/hwmon/aquacomputer_d5next.rst | 3 ++-
drivers/hwmon/aquacomputer_d5next.c | 17 +++++++++++++----
2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/Documentation/hwmon/aquacomputer_d5next.rst b/Documentation/hwmon/aquacomputer_d5next.rst
index f84b6a5e4373..49163f387b90 100644
--- a/Documentation/hwmon/aquacomputer_d5next.rst
+++ b/Documentation/hwmon/aquacomputer_d5next.rst
@@ -47,7 +47,7 @@ better suited for userspace tools.

The Octo exposes four physical and sixteen virtual temperature sensors, a flow sensor
as well as eight PWM controllable fans, along with their speed (in RPM), power, voltage
-and current.
+and current. Flow sensor pulses are also available.

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,
@@ -100,6 +100,7 @@ fan1_min Minimal fan speed (in RPM)
fan1_max Maximal fan speed (in RPM)
fan1_target Target fan speed (in RPM)
fan5_pulses Quadro flow sensor pulses
+fan9_pulses Octo 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 166044e01921..8e55cd2f46f5 100644
--- a/drivers/hwmon/aquacomputer_d5next.c
+++ b/drivers/hwmon/aquacomputer_d5next.c
@@ -214,6 +214,7 @@ static u16 octo_sensor_fan_offsets[] = { 0x7D, 0x8A, 0x97, 0xA4, 0xB1, 0xBE, 0xC

/* Control report offsets for the Octo */
#define OCTO_TEMP_CTRL_OFFSET 0xA
+#define OCTO_FLOW_PULSES_CTRL_OFFSET 0x6
/* Fan speed offsets (0-100%) */
static u16 octo_ctrl_fan_offsets[] = { 0x5B, 0xB0, 0x105, 0x15A, 0x1AF, 0x204, 0x259, 0x2AE };

@@ -861,9 +862,16 @@ static umode_t aqc_is_visible(const void *data, enum hwmon_sensor_types type, u3
}
break;
case hwmon_fan_pulses:
- /* Special case for Quadro flow sensor */
- if (priv->kind == quadro && channel == priv->num_fans)
- return 0644;
+ /* Special case for Quadro/Octo flow sensor */
+ if (channel == priv->num_fans) {
+ switch (priv->kind) {
+ case quadro:
+ case octo:
+ return 0644;
+ default:
+ break;
+ }
+ }
break;
case hwmon_fan_min:
case hwmon_fan_max:
@@ -1294,7 +1302,7 @@ static const struct hwmon_channel_info * const 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_CHANNEL_INFO(power,
HWMON_P_INPUT | HWMON_P_LABEL,
HWMON_P_INPUT | HWMON_P_LABEL,
@@ -1671,6 +1679,7 @@ static int aqc_probe(struct hid_device *hdev, const struct hid_device_id *id)
priv->buffer_size = OCTO_CTRL_REPORT_SIZE;
priv->ctrl_report_delay = CTRL_REPORT_DELAY;

+ priv->flow_pulses_ctrl_offset = OCTO_FLOW_PULSES_CTRL_OFFSET;
priv->power_cycle_count_offset = OCTO_POWER_CYCLES;

priv->temp_label = label_temp_sensors;
--
2.44.0

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