Add support for HID output reports in the intel-quicki2c driver by
implementing the output_report callback in the HID low-level driver
interface.
This enables proper communication with HID devices that require
output report functionality, such as setting device configuration or
updating device firmware.
Tested-by: Rui Zhang <rui1.zhang@intel.com>
Signed-off-by: Even Xu <even.xu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Convert all length-related variables in the QuickI2C protocol layer to use
size_t type to follow kernel coding conventions.
This includes:
- All buffer length parameters and variables
- Return values of quicki2c_encode_cmd() function which represents
encoded command buffer size.
- Return values of quicki2c_init_write_buf() function which represents
process result: either prepared output buffer size or error code.
This change improves type consistency and aligns with standard kernel
practices for memory size representation, reducing potential issues
with size calculations and comparisons.
Signed-off-by: Even Xu <even.xu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
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 <xinpeng.sun@intel.com>
Signed-off-by: Xinpeng Sun <xinpeng.sun@intel.com>
Signed-off-by: Even Xu <even.xu@intel.com>
Tested-by: Rui Zhang <rui1.zhang@intel.com>
Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Tested-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
