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diff --git a/docs/dev/dev_device.md b/docs/dev/dev_device.md deleted file mode 100644 index 1eb6462..0000000 --- a/docs/dev/dev_device.md +++ /dev/null @@ -1,23 +0,0 @@ -# Dev log -## **3.Device Model & HAL:** -* Interrupt Controller: PLIC: - - * Implement the PLIC (Platform-Level Interrupt Controller) driver. - - * Set the PLIC priority threshold and enable bits during the start() phase. - - * Dispatch Cause 9 (External Interrupt) in kerneltrap/usertrap. - -* Character Device: Interrupt-Driven Console: - - * Implement a Ring Buffer. uart_putc returns immediately after writing to the buffer. - - * UART transmit interrupt: triggers when the serial port is idle, the ISR takes data from the Ring Buffer and writes it to the register. - - * UART receive interrupt: triggers when a key is pressed, the ISR reads the character and wakes up the process waiting to read. - -* Block Device: VirtIO-Blk: - - * Implement a block device driver for the PCI or MMIO transport layer according to the VirtIO 2.0 standard. - - * DMA: Use the Buddy System to allocate contiguous memory as the descriptor table for the Virtqueue.
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