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feat(hardware.inc): added flags for IER and changed 'Modem'->'MODEM'

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This commit is contained in:
Gale Misery Faraday
2024-12-05 14:45:45 -06:00
parent b3ebe917a9
commit 7d03e97d94
1 changed files with 9 additions and 3 deletions
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12
code/boot/src/hardware.inc
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@@ -38,7 +38,13 @@ 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 IER, IIR, FCR
; TODO: Flags for IIR, 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 Line Control Register:
UARTF_LCR_8N1 EQU %11000000 ; 8n1 Serial Mode
@@ -49,7 +55,7 @@ UARTF_LCR_SPR EQU %00000100 ; Stick Parity
UARTF_LCR_BRK EQU %00000010 ; Set Break
UARTF_LCR_DLAB EQU %00000001 ; Divisor Latch Access Bit
; UART Flags for Modem Control Register:
; UART Flags for MODEM Control Register:
UARTF_MCR_DTR EQU %10000000 ; Data Terminal Ready
UARTF_MCR_RTS EQU %01000000 ; Enabling Request to Send
UARTF_MCR_OUT1 EQU %00100000 ; Out 1
@@ -66,7 +72,7 @@ UARTF_LSR_THRE EQU %00000100 ; Transmitter Holding Register
UARTF_LSR_TEMT EQU %00000010 ; Transmitter Empty
UARTF_LSR_FIFO EQU %00000001 ; Error in RCVR FIFO
; UART Flags for Modem Status Register:
; UART Flags for MODEM Status Register:
UARTF_MSR_DCTS EQU %10000000 ; Delta Clear to Send
UARTF_MSR_DDSR EQU %01000000 ; Delta Data Set Ready
UARTF_MSR_TERI EQU %00100000 ; Trailing Edge Ring Indicator