2023-03-15 18:01:54 +08:00
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# Emulated UART configuration options
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# Copyright (c) 2023 Fabian Blatz
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# SPDX-License-Identifier: Apache-2.0
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config UART_EMUL
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bool "Emulated UART driver [EXPERIMENTAL]"
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default y
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depends on DT_HAS_ZEPHYR_UART_EMUL_ENABLED
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drivers: serial: uart_emul: support interrupt-driven receive
Previously, the uart_emul device did not support interrupt-driven
receive, which is an unwritten requirement for hooking up a uart to
the Zephyr console driver.
The console is a fairly high-traffic subsystem, and we should be able
to perform more extensive testing on it, aside from maching twister
output against a regular expression. With this change, we can use
the emulation uart within the body of a ZTest.
Testing Done:
```shell
west build -p auto -b qemu_riscv64 -t run tests/drivers/console_switching
...
*** Booting Zephyr OS build zephyr-v3.4.0-4277-gae0d63471be1 ***
Running TESTSUITE console_switching
===================================================================
START - test_read
read "Hello, uart_emul0!" from uart_emul0
read "Hello, uart_emul1!" from uart_emul1
read "Hello, uart_emul0!" from uart_emul0
read "Hello, uart_emul1!" from uart_emul1
PASS - test_read in 0.005 seconds
===================================================================
START - test_write
wrote "Hello, uart_emul0!" to uart_emul0
wrote "Hello, uart_emul1!" to uart_emul1
wrote "Hello, uart_emul0!" to uart_emul0
wrote "Hello, uart_emul1!" to uart_emul1
PASS - test_write in 0.003 seconds
===================================================================
TESTSUITE console_switching succeeded
------ TESTSUITE SUMMARY START ------
SUITE PASS - 100.00% [console_switching]: pass = 2, fail = 0, skip = 0...
- PASS - [console_switching.test_read] duration = 0.005 seconds
- PASS - [console_switching.test_write] duration = 0.003 seconds
------ TESTSUITE SUMMARY END ------
===================================================================
PROJECT EXECUTION SUCCESSFUL
```
Signed-off-by: Christopher Friedt <cfriedt@meta.com>
2023-10-03 02:31:48 +08:00
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select SERIAL_SUPPORT_INTERRUPT
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2023-03-15 18:01:54 +08:00
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select RING_BUFFER
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select EXPERIMENTAL
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help
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Enable the emulated UART driver.
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2023-11-02 21:56:02 +08:00
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if UART_EMUL
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config UART_EMUL_WORK_Q_STACK_SIZE
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int "UART emulator work queue stack size"
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default 2048
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config UART_EMUL_WORK_Q_PRIORITY
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int "UART emulator work queue tread priority"
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default 1
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endif # UART_EMUL
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