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Message-ID: <2be37a02-d7aa-4587-a7a3-763840e98888@canonical.com>
Date: Tue, 17 Dec 2024 15:32:39 +0800
From: Aaron Ma <aaron.ma@...onical.com>
To: "Xu, Even" <even.xu@...el.com>, "jikos@...nel.org" <jikos@...nel.org>,
"bentiss@...nel.org" <bentiss@...nel.org>, "corbet@....net"
<corbet@....net>, "bagasdotme@...il.com" <bagasdotme@...il.com>,
"rdunlap@...radead.org" <rdunlap@...radead.org>
Cc: "linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
Subject: Re: [PATCH v3 00/22] Add Intel Touch Host Controller drivers
On 12/17/24 2:58 PM, Xu, Even wrote:
> Hi, Aaron,
>
> Thanks for testing!
>
> It’s not a driver error, it just means driver detected a touch device error (Touch device report an unexpected RESET Response).
>
> I also met the same issue during test, it usually happens during enumeration flow.
>
> If user keep touching the screen before/during driver do device initialization, it will happen.
>
During the booting, no touching.
It still repeats this error when driver is loading.
After system bootup and in idle, every single touch will report this error.
Aaron
> In general, Touch devices will self recover from this error, it will not impact normal touch function.
>
> Thanks!
>
> Best Regards,
>
> Even Xu
>
> *From:*Aaron Ma <aaron.ma@...onical.com>
> *Sent:* Tuesday, December 17, 2024 2:47 PM
> *To:* Xu, Even <even.xu@...el.com>; jikos@...nel.org; bentiss@...nel.org; corbet@....net; bagasdotme@...il.com; rdunlap@...radead.org
> *Cc:* linux-input@...r.kernel.org; linux-kernel@...r.kernel.org; linux-doc@...r.kernel.org
> *Subject:* Re: [PATCH v3 00/22] Add Intel Touch Host Controller drivers
>
> Hi Even,
>
> Tested on 6.13-rc3, there is an error repeated when using touchscreen:
>
> intel_quicki2c 0000:00:10.0: *unexpected DIR happen*
>
> The device info:
> [ 3.013613] input: quicki2c-hid 27C6:012D Touchscreen as /devices/pci0000:00/0000:00:10.0/000
> 1:27C6:012D.0001/input/input6
> [ 3.013763] input: quicki2c-hid 27C6:012D as /devices/pci0000:00/0000:00:10.0/0001:27C6:012D.
> 0001/input/input7
> [ 3.013894] hid-generic 0001:27C6:012D.0001: input,hidraw0: <UNKNOWN> HID v8.65 Device [quick
> i2c-hid 27C6:012D] on
>
>
> Aaron
>
> On 12/16/24 9:41 AM, Even Xu wrote:
>
> Intel Touch Host Controller (THC) is a new high performance input IP
>
> which can benefit HID device's data transaction, such as touch screen,
>
> touch pad, stylus.
>
> THC IP now evoluates to V4, it can support 3 different modes: IPTS,
>
> HIDSPI and HIDI2C. Here are upgrade history:
>
> - THC v1, for TGL/LKF, supports intel private IPTS (Intel Precise Touch
>
> and Stylus) protocol ( IPTS mode)
>
> - THC v2, for ADL, add industrial standard HID over SPI protocol support
>
> (HIDSPI mode)
>
> - THC v3, for MTL, enhance HID over SPI mode
>
> - THC v4, for LNL, add inudstrial standard HID over I2C protocol support
>
> (HIDI2C mode)
>
> Linux Surface community (https://github.com/linux-surface <https://github.com/linux-surface>) already
>
> implemented IPTS mode. These patch series provides THC HIDSPI mode and
>
> THC HIDI2C mode support on Linux.
>
> These patch series includes:
>
> 1. Document for THC hardware and software introduction.
>
> 2. Intel THC Hardware layer driver which provides control interfaces
>
> for protocol layer.
>
> 3. Intel QuickSPI (R) driver working as a HIDSPI device driver which
>
> implements HID over SPI protocol and flow.
>
> 4. Intel QuickI2C (R) driver working as a HIDI2C device driver which
>
> implements HID over I2C protocol and flow.
>
> Change logs:
>
> v3:
>
> - Change tables in documents from literal block to table format
>
> - Change symbol namespace to string literal according to patch:
>
> cdd30ebb1b9f ("module: Convert symbol namespace to string literal")
>
> - Refine Kconfig description
>
> - Enhance Quickspi and Quicki2c driver by clearing THC hardware interal
>
> state before doing initialization to avoid BIOS impacts.
>
> - A fix in Quicki2c driver when does set_report
>
> v2:
>
> - Fix document format issues
>
> - Add THC device IDs for Intel Panther Lake (PTL) platform
>
> Even Xu (13):
>
> HID: THC: Add documentation
>
> HID: intel-thc-hid: intel-thc: Add THC DMA interfaces
>
> HID: intel-thc-hid: intel-thc: Add THC I2C config interfaces
>
> HID: intel-thc-hid: intel-quickspi: Add THC QuickSPI driver hid layer
>
> HID: intel-thc-hid: intel-quickspi: Add THC QuickSPI ACPI interfaces
>
> HID: intel-thc-hid: intel-quickspi: Add HIDSPI protocol implementation
>
> HID: intel-thc-hid: intel-quickspi: Add PM implementation
>
> HID: intel-thc-hid: intel-quicki2c: Add THC QuickI2C driver skeleton
>
> HID: intel-thc-hid: intel-quicki2c: Add THC QuickI2C driver hid layer
>
> HID: intel-thc-hid: intel-quicki2c: Add THC QuickI2C ACPI interfaces
>
> HID: intel-thc-hid: intel-quicki2c: Add HIDI2C protocol implementation
>
> HID: intel-thc-hid: intel-quicki2c: Complete THC QuickI2C driver
>
> HID: intel-thc-hid: intel-quicki2c: Add PM implementation
>
> Xinpeng Sun (9):
>
> HID: intel-thc-hid: Add basic THC driver skeleton
>
> HID: intel-thc-hid: intel-thc: Add THC registers definition
>
> HID: intel-thc-hid: intel-thc: Add THC PIO operation APIs
>
> HID: intel-thc-hid: intel-thc: Add APIs for interrupt
>
> HID: intel-thc-hid: intel-thc: Add THC LTR interfaces
>
> HID: intel-thc-hid: intel-thc: Add THC interrupt handler
>
> HID: intel-thc-hid: intel-thc: Add THC SPI config interfaces
>
> HID: intel-thc-hid: intel-quickspi: Add THC QuickSPI driver skeleton
>
> HID: intel-thc-hid: intel-quickspi: Complete THC QuickSPI driver
>
> Documentation/hid/index.rst | 1 +
>
> Documentation/hid/intel-thc-hid.rst | 568 ++++++
>
> MAINTAINERS | 6 +
>
> drivers/hid/Kconfig | 2 +
>
> drivers/hid/Makefile | 2 +
>
> drivers/hid/intel-thc-hid/Kconfig | 42 +
>
> drivers/hid/intel-thc-hid/Makefile | 22 +
>
> .../intel-quicki2c/pci-quicki2c.c | 966 ++++++++++
>
> .../intel-quicki2c/quicki2c-dev.h | 186 ++
>
> .../intel-quicki2c/quicki2c-hid.c | 166 ++
>
> .../intel-quicki2c/quicki2c-hid.h | 14 +
>
> .../intel-quicki2c/quicki2c-protocol.c | 224 +++
>
> .../intel-quicki2c/quicki2c-protocol.h | 20 +
>
> .../intel-quickspi/pci-quickspi.c | 987 +++++++++++
>
> .../intel-quickspi/quickspi-dev.h | 172 ++
>
> .../intel-quickspi/quickspi-hid.c | 165 ++
>
> .../intel-quickspi/quickspi-hid.h | 14 +
>
> .../intel-quickspi/quickspi-protocol.c | 409 +++++
>
> .../intel-quickspi/quickspi-protocol.h | 25 +
>
> .../intel-thc-hid/intel-thc/intel-thc-dev.c | 1578 +++++++++++++++++
>
> .../intel-thc-hid/intel-thc/intel-thc-dev.h | 116 ++
>
> .../intel-thc-hid/intel-thc/intel-thc-dma.c | 969 ++++++++++
>
> .../intel-thc-hid/intel-thc/intel-thc-dma.h | 146 ++
>
> .../intel-thc-hid/intel-thc/intel-thc-hw.h | 881 +++++++++
>
> include/linux/hid-over-i2c.h | 117 ++
>
> include/linux/hid-over-spi.h | 155 ++
>
> 26 files changed, 7953 insertions(+)
>
> create mode 100644 Documentation/hid/intel-thc-hid.rst
>
> create mode 100644 drivers/hid/intel-thc-hid/Kconfig
>
> create mode 100644 drivers/hid/intel-thc-hid/Makefile
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quicki2c/pci-quicki2c.c
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quicki2c/quicki2c-dev.h
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quicki2c/quicki2c-hid.c
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quicki2c/quicki2c-hid.h
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quicki2c/quicki2c-protocol.c
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quicki2c/quicki2c-protocol.h
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quickspi/pci-quickspi.c
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quickspi/quickspi-dev.h
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quickspi/quickspi-hid.c
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quickspi/quickspi-hid.h
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quickspi/quickspi-protocol.c
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-quickspi/quickspi-protocol.h
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.h
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h
>
> create mode 100644 drivers/hid/intel-thc-hid/intel-thc/intel-thc-hw.h
>
> create mode 100644 include/linux/hid-over-i2c.h
>
> create mode 100644 include/linux/hid-over-spi.h
>
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