Files
aqhomecontrol/avr/modules/uart_hw/lowlevel_uart0.asm
2025-02-26 21:00:09 +01:00

137 lines
3.1 KiB
NASM

; ***************************************************************************
; copyright : (C) 2025 by Martin Preuss
; email : martin@libchipcard.de
;
; ***************************************************************************
; * This file is part of the project "AqHome". *
; * Please see toplevel file COPYING of that project for license details. *
; ***************************************************************************
.cseg
; ---------------------------------------------------------------------------
; @routine UART_HW_Uart0_Init @global
;
; @param Y pointer to interface data in SRAM (see @ref UART_HW_IFACE_OFFS_STATE)
; @clobbers R16, R17, X
UART_HW_Uart0_Init:
M_UART_HW_Uart_Init 0
ret
; @end
; ---------------------------------------------------------------------------
; @routine UART_HW_Uart0_StartRx @global
;
; @clobbers R16
UART_HW_Uart0_StartRx:
M_UART_HW_Uart_StartRx 0
ret
; @end
; ---------------------------------------------------------------------------
; @routine UART_HW_Uart0_StopRx @global
;
; @clobbers R16
UART_HW_Uart0_StopRx:
M_UART_HW_Uart_StopRx 0
ret
; @end
; ---------------------------------------------------------------------------
; @routine UART_HW_Uart0_StartTx @global
;
; @param Y pointer to interface data in SRAM (see @ref UART_HW_IFACE_OFFS_STATE)
; @clobbers R16
UART_HW_Uart0_StartTx:
M_UART_HW_Uart_StartTx 0
ret
; @end
; ---------------------------------------------------------------------------
; @routine UART_HW_Uart0_StopTx @global
;
; @param Y pointer to interface data in SRAM (see @ref UART_HW_IFACE_OFFS_STATE)
; @clobbers R16
UART_HW_Uart0_StopTx:
M_UART_HW_Uart_StopTx 0
ret
; @end
; ---------------------------------------------------------------------------
; @routine UART_HW_Uart0_Flush
;
; Flush receiption buffer.
;
; @param Y pointer to interface data in SRAM (see @ref UART_HW_IFACE_OFFS_MODE)
; @clobbers R16
UART_HW_Uart0_Flush:
M_UART_HW_Uart_Flush 0
ret
; @end
; ---------------------------------------------------------------------------
; @routine UART_HW_Uart0_RxCharIsr @global
;
; @param Y pointer to interface data in SRAM (see @ref UART_HW_IFACE_OFFS_MODE)
; @clobbers R16 (R17, R18, R24, R25, X)
UART_HW_Uart0_RxCharIsr:
M_UART_HW_Uart_RxCharIsr 0
ret
; @end
; ---------------------------------------------------------------------------
; @routine UART_HW_Uart0_TxUdreIsr @global
;
; Handler for UDRE1 interrupt called when TX data register is empty.
;
; @param Y pointer to interface data in SRAM (see @ref UART_HW_IFACE_OFFS_MODE)
; @clobbers R16, R17, X
UART_HW_Uart0_TxUdreIsr:
M_UART_HW_Uart_TxUdreIsr 0
ret
; @end
; ---------------------------------------------------------------------------
; @routine UART_HW_Uart0_TxCharIsr @global
;
; Handler for TXC1 interrupt called when a last byte has been completely sent and
; the data register is empty.
;
; @param Y pointer to interface data in SRAM (see @ref UART_HW_IFACE_OFFS_MODE)
; @clobbers R16
UART_HW_Uart0_TxCharIsr:
M_UART_HW_Uart_TxCharIsr 0
ret
; @end