rcc-project/mubios/drivers/kbd.c, branch master

[mubios] Fixed several typo

2026-11-09T17:55:40Z

Signed-off-by: Richard Qin

[mubios] Implement serial input and BIOS console key handling

2026-11-09T17:16:40Z

Implement UART receive, transmit timeouts, configuration and status reporting for INT 14h functions 00h-03h. Initialize the BDA serial timeout and expose the driver interfaces. Translate terminal characters and CSI/SS3 escape sequences into BIOS keyboard events for INT 16h. Add blocking reads, non-consuming status queries, enhanced key reads and keyboard buffer insertion.

[mubios] Initialize the 8042 keyboard controller

2026-11-09T15:42:19Z

POST only unmasked IRQ1 in the PIC and never configured the 8042 itself, so the keyboard stayed in its post-reset disabled state: the clock was inhibited and no scan code ever reached the output buffer. IRQ1 never fired, the BDA keyboard buffer stayed empty, and GRUB polling INT 16h AH=01h never saw a key. Add kbd_init() to disable both ports, drain the output buffer, clear the clock inhibit bits in the command byte, enable the keyboard and auxiliary IRQs and select set 1 translation, then enable scanning with 0xF4. The IRQ1 handler now checks the status register for a pending output byte before reading the data port and drops auxiliary port bytes. The set 2 break prefix tracking is gone because translation is enabled.