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feat(hardware.inc): Added flags for FCR

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This commit is contained in:
Gale Misery Faraday
2024-12-05 14:54:43 -06:00
parent d787e63624
commit 6605f13003
1 changed files with 8 additions and 2 deletions
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code/boot/src/hardware.inc
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@@ -38,14 +38,20 @@ UART_LSR EQU UART_BASE + 5 ; Line Status Register
UART_MSR EQU UART_BASE + 6 ; MODEM Status Register
UART_SCR EQU UART_BASE + 7 ; Scratch Register (Not for control just spare RAM)
; TODO: Flags for FCR
; UART Flags for Interrupt Enable Register:
UARTF_IER_ERBFI EQU %10000000 ; Enable Received Data Available Interrupt
UARTF_IER_ETBEI EQU %01000000 ; Enable Transmitter Holding Register Empty Interrupt
UARTF_IER_ELSI EQU %00100000 ; Enable Receiver Line Status Interrupt
UARTF_IER_EDSSI EQU %00010000 ; Enable MODEM Status Interrupt
; UART Flags for FIFO Control Register:
UARTF_FCR_FE EQU %10000000 ; FIFO Enabled
UARTF_FCR_RFR EQU %01000000 ; RCVR FIFO Reset
UARTF_FCR_XFR EQU %00100000 ; XMIT FIFO Reset
UARTF_FCR_DMS EQU %00010000 ; DMA Mode Select
UARTF_FCR_RTL EQU %00000010 ; RCVR Trigger (LSB)
UARTF_FCR_RTM EQU %00000001 ; RCVR Trigger (MSB)
; UART Flags for Interrupt Ident Register:
UARTF_IIR_INP EQU %10000000 ; Reset if Interrupt Pending; 'INP' = Interrupt Not Pending
UARTF_IIR_IIDM EQU %01110000 ; Interrupt ID Mask