2d0a784c41
Rework the Host Command support. It includes: -change API to backend -change a way of defining rx and tx buffers -fix synchronization between the handler and backend layer -simplify the HC handler Signed-off-by: Dawid Niedzwiecki <dawidn@google.com>
80 lines
2.4 KiB
Plaintext
80 lines
2.4 KiB
Plaintext
# Host command handler functionality
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# Copyright (c) 2020 Google LLC
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# SPDX-License-Identifier: Apache-2.0
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menu "Host command handler subsystem"
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config EC_HOST_CMD
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bool "Support Embedded Controller host command handler subsystem"
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help
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Enable host command processing for embedded controllers on notebook
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computers.
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if EC_HOST_CMD
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module = EC_HC
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module-str = ec-host-commands
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source "subsys/logging/Kconfig.template.log_config"
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config EC_HOST_CMD_HANDLER_STACK_SIZE
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int "Stack size for the EC host command handler thread"
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default 800
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config EC_HOST_CMD_HANDLER_TX_BUFFER
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int "Buffer size in bytes for TX buffer shared by all EC host commands"
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default 0 if EC_HOST_CMD_BACKEND_ESPI
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default 0 if EC_HOST_CMD_BACKEND_SHI
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default 256
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help
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Buffer size in bytes for TX buffer defined by the host command handler.
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Some backend layers can define their own buffer, so the size can be zero to
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avoid duplicating buffers. If multiple backends are used, the size has to be
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set by user to the largest one.
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config EC_HOST_CMD_HANDLER_RX_BUFFER
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int "Buffer size in bytes for RX buffer shared by all EC host commands"
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default 256 if EC_HOST_CMD_BACKEND_ESPI
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default 0 if EC_HOST_CMD_BACKEND_SHI
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default 256
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help
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Buffer size in bytes for TX buffer defined by the host command handler.
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Some backend layers can define their own buffer, so the size can be zero to
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avoid duplicating buffers. If multiple backends are used, the size has to be
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set by user to the largest one.
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config EC_HOST_CMD_HANDLER_PRIO
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int "Priority of host command task"
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default 13
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help
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Priority of the kernel task that handles the host commands.
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If the priority is too low (high in value), the host commands handler may be unable to
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process the command on time and the AP will abort the waiting for response and be unable
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to boot the system properly.
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config EC_HOST_CMD_INIT_PRIORITY
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int "Initialization priority"
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default 60
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range 0 99
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help
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Initialization priority for Host Command. It must be higher than the initialization
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priority of the used backend device.
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config EC_HOST_CMD_HANDLER_TX_BUFFER_DEF
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bool
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default y if EC_HOST_CMD_HANDLER_TX_BUFFER > 0
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help
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The handler defines common tx buffer
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config EC_HOST_CMD_HANDLER_RX_BUFFER_DEF
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bool
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default y if EC_HOST_CMD_HANDLER_RX_BUFFER > 0
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help
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The handler defines common rx buffer
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endif # EC_HOST_CMD
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source "subsys/mgmt/ec_host_cmd/backends/Kconfig"
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endmenu
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