ba39c47187
The PS/2 module in npcx provides a hardware accelerator mechanism including an 8-bit shift register, a state machine, and control logic that handle both the incoming and outgoing data. The hardware accelerator mechanism is shared by 4 PS/2 channels. To support it, this CL separates the PS/2 driver into channel and controller drivers. The controller driver is in charge of the PS/2 transaction. The channel driver is in charge of the connection between the Zehpyr PS/2 API interface and controller driver. Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
28 lines
889 B
Plaintext
28 lines
889 B
Plaintext
# NPCX PS2 configuration options
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# Copyright (c) 2021 Nuvoton Technology Corporation.
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# SPDX-License-Identifier: Apache-2.0
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menuconfig PS2_NPCX
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bool "Nuvoton NPCX embedded controller (EC) PS2 driver"
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depends on SOC_FAMILY_NPCX && ESPI_PERIPHERAL_8042_KBC
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help
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Enable the NPCX family PS2 driver. It provides four PS/2 channels.
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Each channel has two quasi-bidirectional signals that serve as
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direct interfaces to an external keyboard, mouse or any other
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PS/2-compatible pointing device.The driver also depends on the KBC
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8042 keyboard controller.
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if PS2_NPCX
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config PS2_CHANNEL_INIT_PRIORITY
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int "PS/2 channel driver init priority"
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default 41
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help
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PS/2 channel device driver initialization priority.
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This should be lower than the PS2_INIT_PRIORITY as
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NPCX PS/2 controller device driver should initialize
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prior to channel device driver.
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endif # PS2_NPCX
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