1.3 KiB
controller.h
Communicates with the PS/2 controller chip.
Warning: This whole code needs to be reworked!
PS2_CONTROLLER_DATA_PORT - macro
The data transmission IO port.
PS2_CONTROLLER_STATUS_PORT - macro
The Status register IO port.
PS2_CONTROLLER_COMMAND_PORT - macro
The command transmission IO port.
PS2_CONTROLLER_TIMEOUT - macro
The amount of cycles the system waits for the controller before cancelling an operation.
ps2_controller_init() - function (void)
Initializes the PS/2 controller and devices. At the moment it trusts very much stuff blindly. This needs to be changed. The osdev wiki has a list of stuff to do while initializing PS/2.
ps2_controller_command(command) - function (uint8_t)
Sends the PS/2 controller a command.
ps2_controller_command_with_data(command, data) - function (uint8_t)
Sends the PS/2 controller a command that needs additional data on the data port.
ps2_controller_wait_until_ready_for_input() - function (bool)
Halts until the status register says that there can be data read, or the timeout is reached.
ps2_controller_wait_until_ready_for_output() - function (bool)
Halts until the status register says that there can be data written, or the timeout is reached.
ps2_controller_read_data() - function (uint8_t)
Reads data from the PS/2 controller.