On Sun, Nov 29, 2020 at 04:54:43PM +0100, Wilken Gottwalt wrote: > On Sun, 29 Nov 2020 05:00:49 -0800 > Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > > On Sun, Nov 29, 2020 at 07:36:18AM +0100, Wilken Gottwalt wrote: > > > On Sat, 28 Nov 2020 17:21:40 -0300 > > > Jonas Malaco <jonas@xxxxxxxxxxxx> wrote: > > > > > > > On Sat, Nov 28, 2020 at 7:35 AM Wilken Gottwalt > > > > <wilken.gottwalt@xxxxxxxxxx> wrote: > > > > > > > > > > On Sat, 28 Nov 2020 02:37:38 -0300 > > > > > Jonas Malaco <jonas@xxxxxxxxxxxx> wrote: > > > > > > > > > > > On Thu, Nov 26, 2020 at 8:43 AM Wilken Gottwalt > > > > > > <wilken.gottwalt@xxxxxxxxxx> wrote: > > > > > > > > > > > > > > Adds support for another Corsair PSUs series: AX760i, AX860i, AX1200i, > > > > > > > AX1500i and AX1600i. The first 3 power supplies are supported through > > > > > > > the Corsair Link USB Dongle which is some kind of USB/Serial/TTL > > > > > > > converter especially made for the COM ports of these power supplies. > > > > > > > There are 3 known revisions of these adapters. The AX1500i power supply > > > > > > > has revision 3 built into the case and AX1600i is the only one in that > > > > > > > series, which has an unique usb hid id like the RM/RX series. > > > > > > > > > > > > Can I ask what AXi power supplies were tested? > > > > > > > > > > > > I ask because, based on the user-space implementations I am aware of, > > > > > > the AXi dongle protocol appears to be different from the RMi/HXi series. > > > > > > > > > > I was not able to test this against the AX power supplies, they are really > > > > > hard to find (and are far to expensive). But I went through all these tools > > > > > and stuck to the most common commands, which all 3 series support. Not every > > > > > series supports all commands (there also seem to be different firmwares in > > > > > the micro-conrollers). But this is fine, some sensors will show up as N/A. > > > > > Even my HX850i does not support all commands covered in this driver. > > > > > > > > I think the similarities come from all using wrappers over the PMBus > > > > interface to the voltage controller. But I am not sure the wrapping > > > > protocols are identical. > > > > > > > > For example, cpsumon shows significantly more things going on during a > > > > read than what is needed for the RMi/HXi series.[1] > > > > > > > > [1] https://github.com/ka87/cpsumon/blob/fd639684d7f9/libcpsumon/src/cpsumon.c#L213-L231 > > > > > > > > > > > > > > > > > > > AXi dongle: > > > > > > - https://github.com/ka87/cpsumon > > > > > > > > > > This tool made me to consider including the AX series, because it uses some > > > > > of the same commands on the AX760i, AX860i, AX1200i and AX1500i. But it is > > > > > a usb-serial tool only. But it was nice to know, that the commands are mostly > > > > > the same. I left out all the commands for configuring, PCIe power rails, > > > > > efficiency and others which do not really belong into hwmon. > > > > > > > > > > > RMi/HXi: > > > > > > - https://github.com/jonasmalacofilho/liquidctl > > > > > > - https://github.com/audiohacked/OpenCorsairLink > > > > > > > > > > This tool made me include the AX series, because it uses the rmi protocol > > > > > component for the rmi driver (RM/HX series) and the corsair dongles. > > > > > > > > The corsairlink_driver_dongle has no implementations for reading sensor > > > > data (compare that with the corsairlink_driver_rmi).[2][3] There is > > > > also no code that actually tries to read (write) from (to) the device > > > > using that dongle driver.[4] > > > > > > > > I also looked at a few of the issues, and all of the ones I read > > > > mentioned AXi support being under development, and the hypothesis of the > > > > AXi series being compatible with the RMi/HXi code still remaining to be > > > > confirmed. > > > > > > > > [2] https://github.com/audiohacked/OpenCorsairLink/blob/61d336a61b85/drivers/dongle.c#L33-L39 > > > > [3] https://github.com/audiohacked/OpenCorsairLink/blob/61d336a61b85/drivers/rmi.c#L33-L57 > > > > [4] https://github.com/audiohacked/OpenCorsairLink/blob/61d336a61b85/main.c#L106 > > > > > > > > > > > > > > > > > > > - https://github.com/notaz/corsairmi > > > > > > > > > > This one covers only some HX/RM PSUs, but is uses the rawhid access which > > > > > made me looking up the actual usb chips/bridges Corsair uses. > > > > > > > > > > > > > > > > > One additional concern is that the non-HID AXi dongles may only have bulk > > > > > > USB endpoints, and this is a HID driver.[1] > > > > > > > > > > You are right, in the case of the dongles it could be different. But I did > > > > > some research on Corsair usb driven devices and they really like to stick to > > > > > the cp210x, which is an usb hid bridge. The commit > > > > > b9326057a3d8447f5d2e74a7b521ccf21add2ec0 actually covers two Corsair USB > > > > > dongles as a cp210x device. So it is very likely that all Corsair PSUs with > > > > > such an interface/dongle use usb hid. But I'm completely open to get proven > > > > > wrong. Actually I really would like to see this tested by people who have > > > > > access to the more rare devices. > > > > > > > > I could be wrong (and I am sorry for the noise if that is the case), but > > > > as far as I can see the cp210x does not create a HID device. > > > > > > No no, this is fine. It really helps if some more people are looking into this. > > > I wish I had access to at least one of the later models (AX1500i/AX1600i), I > > > make mistakes from time to time. And it really doesn't help that Corsair changes > > > single devices in the same product line by firmware update. The AX1600i seems to > > > be the only one, which uses exactly the same protocol like the RM/HX series, but > > > is missing the actual usb hid part. But there seems to be a firmware where the > > > usb hid part was available for a short time. So, what to do? Remove the AXi part > > > completely or keep only the AX1600i? > > > > > > Guenter, what would you suggest? > > > > > I'd suggest to remove it completely, and explain the reason. Anything else will > > just create trouble with people demanding to know why their power supply is not > > supported even though it is listed as supported. And, believe me, you don't want > > to be on the receiving side of those complaints. The Internet is much less > > friendly nowadays than it used to be. > > So how is the procedure for this? Just revert it and make a common patch out of > it with a proper explanation? > > And yeah, I know exactly what you mean. I remember very well how the "internet" > got it first ugly hit in the 90s with the upcoming of Flash ... and then the > "social media". :D Thanks for your help. > Can I just drop your previous patch and you send me another - more restrictive - one ? Thanks, Guenter > greetings, > Wilken > > > Guenter > > > > > > Thanks again, > > > > Jonas > > > > > > > > > > > > > > > > > > > Thanks, > > > > > > Jonas > > > > > > > > > > > > [1] https://github.com/ka87/cpsumon/issues/4 > > > > > > > > > > Yes ... that one. The last revision of the dongle could indeed be a problem. > > > > > But I'm not really sure what is described here. The last commenter is actually > > > > > the one who provided the cp210x patch mentioned up there. The problem here is, > > > > > the AX1500i has both connectors, USB and that other one. I call it the other > > > > > one because it is the only PSU where it is labeled I2C COMM instead of COMM > > > > > only. But at the same time this tools uses the same commands for this PSU. > > > > > > > > > > So, only some real hardware tests will show. > > > > > > > > > > Greetings, > > > > > Wilken > > > > > > > > > > > > > > > > > > > The patch also changes the usb hid ids to use upper case letters to be > > > > > > > consistent with the rest of the hex numbers in the driver and updates > > > > > > > the hwmon documentation. > > > > > > > > > > > > > > This patch adds: > > > > > > > - hwmon/corsair-psu documentation update > > > > > > > - corsair-psu driver update > > > > > > > > > > > > > > Signed-off-by: Wilken Gottwalt <wilken.gottwalt@xxxxxxxxxx> > > > > > > > --- > > > > > > > Documentation/hwmon/corsair-psu.rst | 10 +++++++++ > > > > > > > drivers/hwmon/Kconfig | 7 +++--- > > > > > > > drivers/hwmon/corsair-psu.c | 33 +++++++++++++++++++---------- > > > > > > > 3 files changed, 36 insertions(+), 14 deletions(-) > > > > > > > > > > > > > > diff --git a/Documentation/hwmon/corsair-psu.rst b/Documentation/hwmon/corsair-psu.rst > > > > > > > index 396b95c9a76a..6227e9046d73 100644 > > > > > > > --- a/Documentation/hwmon/corsair-psu.rst > > > > > > > +++ b/Documentation/hwmon/corsair-psu.rst > > > > > > > @@ -7,6 +7,16 @@ Supported devices: > > > > > > > > > > > > > > * Corsair Power Supplies > > > > > > > > > > > > > > + Corsair AX760i (by Corsair Link USB Dongle) > > > > > > > + > > > > > > > + Corsair AX860i (by Corsair Link USB Dongle) > > > > > > > + > > > > > > > + Corsair AX1200i (by Corsair Link USB Dongle) > > > > > > > + > > > > > > > + Corsair AX1500i (by builtin Corsair Link USB Dongle) > > > > > > > + > > > > > > > + Corsair AX1600i > > > > > > > + > > > > > > > Corsair HX550i > > > > > > > > > > > > > > Corsair HX650i > > > > > > > diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig > > > > > > > index 716df51edc87..3c059fc23cd6 100644 > > > > > > > --- a/drivers/hwmon/Kconfig > > > > > > > +++ b/drivers/hwmon/Kconfig > > > > > > > @@ -453,11 +453,12 @@ config SENSORS_CORSAIR_PSU > > > > > > > tristate "Corsair PSU HID controller" > > > > > > > depends on HID > > > > > > > help > > > > > > > - If you say yes here you get support for Corsair PSUs with a HID > > > > > > > + If you say yes here you get support for Corsair PSUs with an USB HID > > > > > > > interface. > > > > > > > Currently this driver supports the (RM/HX)550i, (RM/HX)650i, > > > > > > > - (RM/HX)750i, (RM/HX)850i, (RM/HX)1000i and HX1200i power supplies > > > > > > > - by Corsair. > > > > > > > + (RM/HX)750i, (RM/HX)850i, (RM/HX)1000i, HX1200i and AX1600i power > > > > > > > + supplies by Corsair. The AX760i, AX860i, AX1200i and AX1500i > > > > > > > + power supplies are supported through the Corsair Link USB Dongle. > > > > > > > > > > > > > > This driver can also be built as a module. If so, the module > > > > > > > will be called corsair-psu. > > > > > > > diff --git a/drivers/hwmon/corsair-psu.c b/drivers/hwmon/corsair-psu.c > > > > > > > index 99494056f4bd..0146dda3e2c3 100644 > > > > > > > --- a/drivers/hwmon/corsair-psu.c > > > > > > > +++ b/drivers/hwmon/corsair-psu.c > > > > > > > @@ -571,17 +571,28 @@ static int corsairpsu_raw_event(struct hid_device *hdev, struct > > > > > > > hid_report *repo } > > > > > > > > > > > > > > static const struct hid_device_id corsairpsu_idtable[] = { > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c03) }, /* Corsair HX550i */ > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c04) }, /* Corsair HX650i */ > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c05) }, /* Corsair HX750i */ > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c06) }, /* Corsair HX850i */ > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c07) }, /* Corsair HX1000i */ > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c08) }, /* Corsair HX1200i */ > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c09) }, /* Corsair RM550i */ > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c0a) }, /* Corsair RM650i */ > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c0b) }, /* Corsair RM750i */ > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c0c) }, /* Corsair RM850i */ > > > > > > > - { HID_USB_DEVICE(0x1b1c, 0x1c0d) }, /* Corsair RM1000i */ > > > > > > > + /* > > > > > > > + * The Corsair USB/COM Dongles appear in at least 3 different revisions, where > > > > > > > rev 1 and 2 > > > > > > > + * are commonly used with the AX760i, AX860i and AX1200i, while rev3 is rarely > > > > > > > seen with > > > > > > > + * these PSUs. Rev3 is also build into the AX1500i, while the AX1600i is the > > > > > > > first PSU of > > > > > > > + * this series which has an unique usb hid id. Though, the actual device name is > > > > > > > part of > > > > > > > + * the HID message protocol, so it doesn't matter which dongle is connected. > > > > > > > + */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair Link USB/COM Dongle rev1 */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C01) }, /* Corsair Link USB/COM Dongle rev2 */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C02) }, /* Corsair Link USB/COM Dongle rev3 > > > > > > > (AX1500i) */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C03) }, /* Corsair HX550i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C04) }, /* Corsair HX650i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C05) }, /* Corsair HX750i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C06) }, /* Corsair HX850i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C07) }, /* Corsair HX1000i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C08) }, /* Corsair HX1200i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C09) }, /* Corsair RM550i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C0A) }, /* Corsair RM650i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C0B) }, /* Corsair RM750i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C0C) }, /* Corsair RM850i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C0D) }, /* Corsair RM1000i */ > > > > > > > + { HID_USB_DEVICE(0x1B1C, 0x1C11) }, /* Corsair AX1600i */ > > > > > > > { }, > > > > > > > }; > > > > > > > MODULE_DEVICE_TABLE(hid, corsairpsu_idtable); > > > > > > > -- > > > > > > > 2.29.2 > > > > > > > > > > > > > > > >
