Module driver:serial - Generic serial-port infrastructure pseudo device

Index

• Group UART - UART register offsets
  
  • Constant UART.ASR - Additional status register
  • Constant UART.BGDH - Baud rate generator (high byte);
  • Constant UART.BGDL - Baud rate generator (low byte)
  • Constant UART.BSR - Bank register select
  • Constant UART.DLL - Baud rate divisor LSB (write when DLAB=1)
  • Constant UART.DLM - Baud rate divisor MSB (write when DLAB=1)
  • Constant UART.EFR - Extended features (read/write when DLAB=1 or LCR=#BF)
  • Constant UART.EXCR1 - Extended control register 1
  • Constant UART.EXCR2 - Extended control register 2
  • Constant UART.FIO - FIFO (write when DLAB=0)
  • Constant UART.ICR - Index control register
  • Constant UART.IER - Interrupt enable (write when DLAB=0)
  • Constant UART.IIR - Interrupt ID (read when DLAB=0)
  • Constant UART.LCR - Line control
  • Constant UART.LSR - Line status
  • Constant UART.MCR - Modem control
  • Constant UART.MSR - Modem status
  • Constant UART.RBR - Receiver data (read when DLAB=0)
  • Constant UART.RFL - Receiver FIFO level
  • Constant UART.RXFLV - Receiver FIFO level (bits 0-5), read-only
  • Constant UART.SCR - Scratch register
  • Constant UART.TFL - Transmitter FIFO level
  • Constant UART.THR - Transmitter holding (write when DLAB=0)
  • Constant UART.TXFLV - Transmitter FIFO level (bits 0-5), read-only
• Group UART.BSR - Bank select register bits (NS SuperIO)
  
  • Constant UART.BSR.BANK0 - Bank 0
  • Constant UART.BSR.BANK1 - Bank 1
  • Constant UART.BSR.BANK1A - Bank 1 (other)
  • Constant UART.BSR.BANK1B - Bank 1 (other)
  • Constant UART.BSR.BANK2 - Bank 2
  • Constant UART.BSR.BANK3 - Bank 3
  • Constant UART.BSR.BANK4 - Bank 4
  • Constant UART.BSR.BANK5 - Bank 5
  • Constant UART.BSR.BANK6 - Bank 6
  • Constant UART.BSR.BANK7 - Bank 7
• Group UART.CAP - UART capabilities
  
  • Constant UART.CAP.AFE - UART has MCR-based hardware flow control
  • Constant UART.CAP.EFR - UART has EFR
  • Constant UART.CAP.FIFO - UART has FIFO
  • Constant UART.CAP.NONE - UART has no special capabilities
  • Constant UART.CAP.NS - National Semiconductor UART (additional features)
  • Constant UART.CAP.SLEEP - UART has IER sleep
  • Constant UART.CAP.UUE - UART needs IER bit 6 set (Xscale)
• Group UART.EFR - Extended features register (UART.EFR) bits
  
  • Constant UART.EFR.CTS - CTS flow control
  • Constant UART.EFR.ECB - Enhanced control bit
  • Constant UART.EFR.RTS - RTS flow control
  • Constant UART.EFR.SCD - Special character detect
• Group UART.EXCR1 - Extended control register 1 bits (NS SuperIO)
  
  • Constant UART.EXCR1.DMANF - DMA fairness control
  • Constant UART.EXCR1.DMASWP - DMA swap
  • Constant UART.EXCR1.DMATH - DMA FIFO threshold
  • Constant UART.EXCR1.ETLOOP - Enable transmitter during loopback control
  • Constant UART.EXCR1.EXTSL - Extended mode select
  • Constant UART.EXCR1.LOOP - Loopback control
• Group UART.EXCR2 - Extended control register 2 bits (NS SuperIO)
  
  • Constant UART.EXCR2.BGLOCK - Baud rate divisor lock
  • Constant UART.EXCR2.PRESL.1 - Divide by 1.0
  • Constant UART.EXCR2.PRESL.13 - Divide by 13
  • Constant UART.EXCR2.PRESL.1625 - Divide by 1.625
  • Constant UART.EXCR2.PRESL.MASK - Baud generator prescalar mask
  • Constant UART.EXCR2.RXFL.MASK - Receiver FIFO level select mask
  • Constant UART.EXCR2.TXFL.MASK - Transmitter FIFO level select mask
  • Constant UART.EXCR2.TXFL16 - 16-byte FIFO
  • Constant UART.EXCR2.TXFL16 - 16-byte FIFO
  • Constant UART.EXCR2.TXFL32 - 32-byte FIFO
  • Constant UART.EXCR2.TXFL32 - 32-byte FIFO
• Group UART.FIO - FIFO control register (UART.FIO) bits
  
  • Constant UART.FIO.CLR.RCVR - Clear receiver FIFO
  • Constant UART.FIO.CLR.XMIT - Clear transmit FIFO
  • Constant UART.FIO.DMA.SEL - DMA select
  • Constant UART.FIO.ENABLE - Enable FIFO
  • Constant UART.FIO.RX.TRIG.MASK - RX FIFO trigger level mask
  • Constant UART.FIO.TX.TRIG.MASK - TX FIFO trigger level mask
• Group UART.ICR - 16950 index control registers
  
  • Constant UART.ICR.ACR - Additional control register
  • Constant UART.ICR.CKS - Clock select register
  • Constant UART.ICR.CPR - Clock prescalar register
  • Constant UART.ICR.CSR - Channel software reset
  • Constant UART.ICR.FCH - Flow control level higher
  • Constant UART.ICR.FCL - Flow control level lower
  • Constant UART.ICR.ID1 - ID register 1
  • Constant UART.ICR.ID2 - ID register 2
  • Constant UART.ICR.ID3 - ID register 3
  • Constant UART.ICR.NMR - Nine-bit mode register
  • Constant UART.ICR.REV - Revision
  • Constant UART.ICR.RTL - Receiver interrupt trigger level
  • Constant UART.ICR.TCR - Times clock register
  • Constant UART.ICR.TTL - Transmitter interrupt trigger level
• Group UART.ICR.ACR - 19C950 additional control register
  
  • Constant UART.ICR.ACR.ASREN - Additional status enable
  • Constant UART.ICR.ACR.DSRFC - DSR flow control
  • Constant UART.ICR.ACR.ICRRD - ICR read enable
  • Constant UART.ICR.ACR.RXDIS - Receiver disable
  • Constant UART.ICR.ACR.TLENB - 950 trigger levels enable
  • Constant UART.ICR.ACR.TXDIS - Transmitter disable
• Group UART.IER - Interrupt enable register (UART.IER) bits
  
  • Constant UART.IER.ENMASK - Mask for interrupt enable bits
  • Constant UART.IER.MSI - Enable modem status interrupt
  • Constant UART.IER.RDI - Enable receiver data interrupt
  • Constant UART.IER.RLSI - Enable receiver line status interrupt
  • Constant UART.IER.THRI - Enable transmitter holding register interrupt
• Group UART.IIR - Interrupt ID register (UART.IIR) bits
  
  • Constant UART.IIR.BUSY - DesignWare APB busy detect
  • Constant UART.IIR.ID.MASK - Mask for interrupt ID
  • Constant UART.IIR.MSI - Modem status interrupt
  • Constant UART.IIR.NOINT - No interrupts pending
  • Constant UART.IIR.RDI - Receiver data interrupt
  • Constant UART.IIR.RLSI - Receiver line status interrupt
  • Constant UART.IIR.THRI - Transmitter holding register empty
• Group UART.LCR - Line control register (UART.LCR) bits
  
  • Constant UART.LCR.ACCESS.EFR - Allow access to extended feature register
  • Constant UART.LCR.DLAB - Divisor latch access (also bank register select)
  • Constant UART.LCR.EPAR - Even parity select
  • Constant UART.LCR.PARITY - Parity enable
  • Constant UART.LCR.SBC - Set break control
  • Constant UART.LCR.SPAR - Space parity
  • Constant UART.LCR.STOP - Stop bits (0=1-bit, 1=2-bits)
  • Constant UART.LCR.WLEN5 - 5-bit word-length
  • Constant UART.LCR.WLEN6 - 6-bit word-length
  • Constant UART.LCR.WLEN7 - 7-bit word-length
  • Constant UART.LCR.WLEN8 - 8-bit word-length
• Group UART.LSR - Line status register (UART.LSR) bits
  
  • Constant UART.LSR.BI - Break interrupt indicator
  • Constant UART.LSR.BRK - Break error bits (BI,FE,PE,OE)
  • Constant UART.LSR.DR - Receiver data ready
  • Constant UART.LSR.FE - Frame error indicator
  • Constant UART.LSR.OE - Overrun error indicator
  • Constant UART.LSR.PE - Parirt error indicator
  • Constant UART.LSR.TEMT - Transmitter empty
  • Constant UART.LSR.THRE - Transmit holding register empty
• Group UART.MCR - Modem control register (UART.MCR) bits
  
  • Constant UART.MCR.AFE - Enable auto-RTS/CTS flow-control
  • Constant UART.MCR.CLKSEL - Divide clock by 4
  • Constant UART.MCR.DTR - DTR complement
  • Constant UART.MCR.LOOP - Enable loopback test mode
  • Constant UART.MCR.OUT1 - Out1 complement
  • Constant UART.MCR.OUT2 - Out2 complement
  • Constant UART.MCR.RTS - RTS complement
  • Constant UART.MCR.TCRTLR - Access TCR/TLR
  • Constant UART.MCR.XONANY - Enable Xon any
• Group UART.MSR - Modem status register (UART.MSR) bits
  
  • Constant UART.MSR.ANYDELTA - Any delta bits
  • Constant UART.MSR.BITMASK - Mask for any indicators
  • Constant UART.MSR.CTS - Clear to send
  • Constant UART.MSR.DCD - Data carrier detect
  • Constant UART.MSR.DCTS - Delta CTS
  • Constant UART.MSR.DDCD - Delta DCD
  • Constant UART.MSR.DDSR - Delta DSR
  • Constant UART.MSR.DSR - Data set ready
  • Constant UART.MSR.RI - Ring indicator
  • Constant UART.MSR.TERI - Trailing edge ring indicator
• Group UART.PARITY - UART parity settings
• Group UART.STOP - UART stop bits settings
• Group UART.TYPE - Known UART types
  
  • Constant UART.TYPE.16450 - 16450
  • Constant UART.TYPE.16550 - 16550
  • Constant UART.TYPE.16550A - 16550A
  • Constant UART.TYPE.16650 - 16650
  • Constant UART.TYPE.16650V2 - 16650 version 2
  • Constant UART.TYPE.16654 - 16654
  • Constant UART.TYPE.16750 - 16750 UART
  • Constant UART.TYPE.16850 - XR16C850
  • Constant UART.TYPE.16C950 - Oxford Semiconductor 16C950
  • Constant UART.TYPE.8250 - Standard 8250 compatible UART
  • Constant UART.TYPE.NS16550A - NS 16550A
  • Constant UART.TYPE.UNKNOWN - Unknown UART type (assume basic)
• Group UART.WLEN - UART word-length settings
• Process serial.driver - Serial-port infrastructure process

Declarations