[bsp/qemu-vexpress-a9] Adapter driver for serial port v2 ([#10176](h…

[hydevcode]

…ttps://github.com/hydevcode/rt-thread/issues/10176))

拉取/合并请求描述：(PR description)

[

为什么提交这份PR (why to submit this PR)

修改qemu串口v2驱动，添加宏定义，发送中断，优化接收

你的解决方案是什么 (what is your solution)

请提供验证的bsp和config (provide the config and bsp)

• BSP:

• .config:

• action:

]

当前拉取/合并请求的状态 Intent for your PR

必须选择一项 Choose one (Mandatory):

• 本拉取/合并请求是一个草稿版本 This PR is for a code-review and is intended to get feedback
• 本拉取/合并请求是一个成熟版本 This PR is mature, and ready to be integrated into the repo

代码质量 Code Quality：

我在这个拉取/合并请求中已经考虑了 As part of this pull request, I've considered the following:

• 已经仔细查看过代码改动的对比 Already check the difference between PR and old code
• 代码风格正确，包括缩进空格，命名及其他风格 Style guide is adhered to, including spacing, naming and other styles
• 没有垃圾代码，代码尽量精简，不包含#if 0代码，不包含已经被注释了的代码 All redundant code is removed and cleaned up
• 所有变更均有原因及合理的，并且不会影响到其他软件组件代码或BSP All modifications are justified and not affect other components or BSP
• 对难懂代码均提供对应的注释 I've commented appropriately where code is tricky
• 代码是高质量的 Code in this PR is of high quality
• 已经使用formatting 等源码格式化工具确保格式符合RT-Thread代码规范 This PR complies with RT-Thread code specification
• 如果是新增bsp, 已经添加ci检查到.github/workflows/bsp_buildings.yml 详细请参考链接BSP自查

[Copilot]

Pull Request Overview

This PR updates the QEMU vexpress-a9 UART v2 driver by adding new macros for UART registers, enhancing interrupt handling in the ISR, and refactoring UART configuration into a dedicated function.

• Added new register macros (e.g., UART_LCR_H, UART_TCR, etc.) for better hardware abstraction.
• Improved ISR to correctly read received characters and handle TX interrupt events.
• Refactored the UART initialization code to use a dedicated configuration function for setting buffer sizes.

Files not reviewed (1)

• bsp/qemu-vexpress-a9/drivers/Kconfig: Language not supported

[Copilot]

Pull Request Overview

This PR updates the QEMU vexpress-a9 UART v2 driver to add new macro definitions, improve interrupt handling, and centralize UART configuration while updating the CI configuration for UARTv2 support.

• Added new macros for UART register access and bit definitions.
• Modified ISR and transmit functions to optimize interrupt handling and serial configuration.
• Updated the CI configuration to include the new peripheral settings for UARTv2.

Reviewed Changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
bsp/qemu-vexpress-a9/drivers/drv_uart_v2.c	New macro definitions and modifications to ISR, UART configuration, and transmit logic to support UART v2.
bsp/qemu-vexpress-a9/.ci/attachconfig/ci.attachconfig.yml	Added UARTv2 kconfig entries to enable new UART functionality.

Files not reviewed (1)

• bsp/qemu-vexpress-a9/drivers/Kconfig: Language not supported

Comments suppressed due to low confidence (1)

bsp/qemu-vexpress-a9/drivers/drv_uart_v2.c:344

• [nitpick] Consider replacing the literal (1 << 4) with the defined macro UARTLCR_H_FEN to improve code clarity and consistency.

UART_LCR_H(_uart_device[i].hw_base) =(1 << 4);