HID: intel-thc-hid: intel-quicki2c: Add HIDI2C protocol implementation

Intel QuickI2C driver uses THC hardware to accelerate HID over I2C
(HIDI2C) protocol flow.

This patch implements all data flow

HID: intel-thc-hid: intel-quicki2c: Add HIDI2C protocol implementation

Intel QuickI2C driver uses THC hardware to accelerate HID over I2C
(HIDI2C) protocol flow.

This patch implements all data flows described in HID over I2C protocol
SPEC by using THC hardware layer APIs.

HID over I2C SPEC:
https://learn.microsoft.com/en-us/previous-versions/windows/hardware/design/dn642101(v=vs.85)

Co-developed-by: Xinpeng Sun <[email protected]>
Signed-off-by: Xinpeng Sun <[email protected]>
Signed-off-by: Even Xu <[email protected]>
Tested-by: Rui Zhang <[email protected]>
Tested-by: Mark Pearson <[email protected]>
Reviewed-by: Srinivas Pandruvada <[email protected]>
Reviewed-by: Mark Pearson <[email protected]>
Tested-by: Aaron Ma <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

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HID: intel-thc-hid: intel-quicki2c: Add THC QuickI2C driver hid layer

Add HID Low level driver callbacks and hid probe function to register
QucikI2C as a HID driver, and external touch device as a H

HID: intel-thc-hid: intel-quicki2c: Add THC QuickI2C driver hid layer

Add HID Low level driver callbacks and hid probe function to register
QucikI2C as a HID driver, and external touch device as a HID device.

Co-developed-by: Xinpeng Sun <[email protected]>
Signed-off-by: Xinpeng Sun <[email protected]>
Signed-off-by: Even Xu <[email protected]>
Tested-by: Rui Zhang <[email protected]>
Tested-by: Mark Pearson <[email protected]>
Reviewed-by: Srinivas Pandruvada <[email protected]>
Reviewed-by: Mark Pearson <[email protected]>
Tested-by: Aaron Ma <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

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HID: intel-thc-hid: intel-quicki2c: Add THC QuickI2C driver skeleton

Create intel-quicki2c folder and add Kconfig and Makefile for THC
QuickI2C driver. Add basic device structure, definitions and pr

HID: intel-thc-hid: intel-quicki2c: Add THC QuickI2C driver skeleton

Create intel-quicki2c folder and add Kconfig and Makefile for THC
QuickI2C driver. Add basic device structure, definitions and probe/remove
functions for QuickI2C driver.

Co-developed-by: Xinpeng Sun <[email protected]>
Signed-off-by: Xinpeng Sun <[email protected]>
Signed-off-by: Even Xu <[email protected]>
Tested-by: Rui Zhang <[email protected]>
Tested-by: Mark Pearson <[email protected]>
Reviewed-by: Srinivas Pandruvada <[email protected]>
Reviewed-by: Mark Pearson <[email protected]>
Tested-by: Aaron Ma <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

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HID: intel-thc-hid: intel-quickspi: Add HIDSPI protocol implementation

Intel QuickSPI driver uses THC hardware to accelerate HID over SPI
(HIDSPI) protocol flow.

This patch implements all data flow

HID: intel-thc-hid: intel-quickspi: Add HIDSPI protocol implementation

Intel QuickSPI driver uses THC hardware to accelerate HID over SPI
(HIDSPI) protocol flow.

This patch implements all data flows described in HID over SPI protocol
SPEC by using THC hardware layer APIs.

HID over SPI SPEC:
https://www.microsoft.com/download/details.aspx?id=103325

Co-developed-by: Xinpeng Sun <[email protected]>
Signed-off-by: Xinpeng Sun <[email protected]>
Signed-off-by: Even Xu <[email protected]>
Tested-by: Rui Zhang <[email protected]>
Tested-by: Mark Pearson <[email protected]>
Reviewed-by: Srinivas Pandruvada <[email protected]>
Reviewed-by: Mark Pearson <[email protected]>
Tested-by: Aaron Ma <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

show more ...

HID: intel-thc-hid: intel-quickspi: Add THC QuickSPI driver hid layer

Add HID Low level driver callbacks and hid probe function to register
QucikSPI as a HID driver, and external touch device as a H

HID: intel-thc-hid: intel-quickspi: Add THC QuickSPI driver hid layer

Add HID Low level driver callbacks and hid probe function to register
QucikSPI as a HID driver, and external touch device as a HID device.

Co-developed-by: Xinpeng Sun <[email protected]>
Signed-off-by: Xinpeng Sun <[email protected]>
Signed-off-by: Even Xu <[email protected]>
Tested-by: Rui Zhang <[email protected]>
Tested-by: Mark Pearson <[email protected]>
Reviewed-by: Srinivas Pandruvada <[email protected]>
Reviewed-by: Mark Pearson <[email protected]>
Tested-by: Aaron Ma <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

show more ...

HID: intel-thc-hid: intel-quickspi: Add THC QuickSPI driver skeleton

Create intel-quickspi folder and add Kconfig and Makefile for THC
QuickSPI driver. Add basic device structure, definitions and pr

HID: intel-thc-hid: intel-quickspi: Add THC QuickSPI driver skeleton

Create intel-quickspi folder and add Kconfig and Makefile for THC
QuickSPI driver. Add basic device structure, definitions and probe/remove
functions for QuickSPI driver.

Co-developed-by: Even Xu <[email protected]>
Signed-off-by: Even Xu <[email protected]>
Signed-off-by: Xinpeng Sun <[email protected]>
Tested-by: Rui Zhang <[email protected]>
Tested-by: Mark Pearson <[email protected]>
Reviewed-by: Srinivas Pandruvada <[email protected]>
Reviewed-by: Mark Pearson <[email protected]>
Tested-by: Aaron Ma <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

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HID: intel-thc-hid: intel-thc: Add THC DMA interfaces

As THC PIO only has 64 bytes FIFO length, THC DMAs are introduced to
send/receive large data packets.

THC has three types of DMA channels: Read

HID: intel-thc-hid: intel-thc: Add THC DMA interfaces

As THC PIO only has 64 bytes FIFO length, THC DMAs are introduced to
send/receive large data packets.

THC has three types of DMA channels: Read DMA channel (RxDMA), Write DMA
channel (TxDMA) and Software DMA (SWDMA).

In addition to basic DMA functions, THC RxDMA also includes an auto
hardware sequence which can handle external touch device's interrupt
automatically without software involved. THC RxDMA channel usually is
used for handling touch input reports.

THC TxDMA is very similar with general IO TxDMA, and usually is used
for sending command/request to exteranl touch device.

THC SWDMA can perform read, write followed by read operation
according to different configurations. Unlike RxDMA triggered by bus
activity, SWDMA can be triggered by SW driver at any time, for example:
- Retrieving an input report without interrupt
- Sending command followed by reading response

THC DMA operation flow includes 4 steps:
1. Allocate DMA buffers
2. Configure opcode, fill PRD table with DMA buffers, enable DMA channel
3. Wait for completion, read out DMA buffers and update buffer pointers
4. Stop DMA and release DMA buffers

THC Hardware layer driver provides APIs for all above DMA Steps.

Co-developed-by: Xinpeng Sun <[email protected]>
Signed-off-by: Xinpeng Sun <[email protected]>
Signed-off-by: Even Xu <[email protected]>
Tested-by: Rui Zhang <[email protected]>
Tested-by: Mark Pearson <[email protected]>
Reviewed-by: Srinivas Pandruvada <[email protected]>
Reviewed-by: Mark Pearson <[email protected]>
Tested-by: Aaron Ma <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

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HID: intel-thc-hid: Add basic THC driver skeleton

Create intel-thc-hid folder and add Kconfig and Makefile for THC drivers.
Add basic THC device context structure, definitions and related
initializa

HID: intel-thc-hid: Add basic THC driver skeleton

Create intel-thc-hid folder and add Kconfig and Makefile for THC drivers.
Add basic THC device context structure, definitions and related
initialization APIs for THC Hardware layer driver. Also initialize
regmap struct for future THC registers access.

Co-developed-by: Even Xu <[email protected]>
Signed-off-by: Even Xu <[email protected]>
Signed-off-by: Xinpeng Sun <[email protected]>
Tested-by: Rui Zhang <[email protected]>
Tested-by: Mark Pearson <[email protected]>
Reviewed-by: Srinivas Pandruvada <[email protected]>
Reviewed-by: Mark Pearson <[email protected]>
Tested-by: Aaron Ma <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

show more ...