| /* |
| * Copyright 2003 Digi International (www.digi.com) |
| * Scott H Kilau <Scott_Kilau at digi dot com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the |
| * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| * PURPOSE. See the GNU General Public License for more details. |
| */ |
| |
| #ifndef __DGNC_NEO_H |
| #define __DGNC_NEO_H |
| |
| #include "dgnc_driver.h" |
| |
| /************************************************************************ |
| * Per channel/port NEO UART structure * |
| ************************************************************************ |
| * Base Structure Entries Usage Meanings to Host * |
| * * |
| * W = read write R = read only * |
| * U = Unused. * |
| ************************************************************************/ |
| |
| struct neo_uart_struct { |
| u8 txrx; /* WR RHR/THR - Holding Reg */ |
| u8 ier; /* WR IER - Interrupt Enable Reg */ |
| u8 isr_fcr; /* WR ISR/FCR - Interrupt Status Reg/Fifo Control Reg */ |
| u8 lcr; /* WR LCR - Line Control Reg */ |
| u8 mcr; /* WR MCR - Modem Control Reg */ |
| u8 lsr; /* WR LSR - Line Status Reg */ |
| u8 msr; /* WR MSR - Modem Status Reg */ |
| u8 spr; /* WR SPR - Scratch Pad Reg */ |
| u8 fctr; /* WR FCTR - Feature Control Reg */ |
| u8 efr; /* WR EFR - Enhanced Function Reg */ |
| u8 tfifo; /* WR TXCNT/TXTRG - Transmit FIFO Reg */ |
| u8 rfifo; /* WR RXCNT/RXTRG - Receive FIFO Reg */ |
| u8 xoffchar1; /* WR XOFF 1 - XOff Character 1 Reg */ |
| u8 xoffchar2; /* WR XOFF 2 - XOff Character 2 Reg */ |
| u8 xonchar1; /* WR XON 1 - Xon Character 1 Reg */ |
| u8 xonchar2; /* WR XON 2 - XOn Character 2 Reg */ |
| |
| u8 reserved1[0x2ff - 0x200]; /* U Reserved by Exar */ |
| u8 txrxburst[64]; /* RW 64 bytes of RX/TX FIFO Data */ |
| u8 reserved2[0x37f - 0x340]; /* U Reserved by Exar */ |
| u8 rxburst_with_errors[64]; /* R 64 bytes of RX FIFO Data + LSR */ |
| }; |
| |
| /* Where to read the extended interrupt register (32bits instead of 8bits) */ |
| #define UART_17158_POLL_ADDR_OFFSET 0x80 |
| |
| /* These are the current dvid's of the Neo boards */ |
| #define UART_XR17C158_DVID 0x20 |
| #define UART_XR17D158_DVID 0x20 |
| #define UART_XR17E158_DVID 0x40 |
| |
| #define NEO_EECK 0x10 /* Clock */ |
| #define NEO_EECS 0x20 /* Chip Select */ |
| #define NEO_EEDI 0x40 /* Data In is an Output Pin */ |
| #define NEO_EEDO 0x80 /* Data Out is an Input Pin */ |
| #define NEO_EEREG 0x8E /* offset to EEPROM control reg */ |
| |
| #define NEO_VPD_IMAGESIZE 0x40 /* size of image to read from EEPROM in words */ |
| #define NEO_VPD_IMAGEBYTES (NEO_VPD_IMAGESIZE * 2) |
| |
| /* |
| * These are the redefinitions for the FCTR on the XR17C158, since |
| * Exar made them different than their earlier design. (XR16C854) |
| */ |
| |
| /* These are only applicable when table D is selected */ |
| #define UART_17158_FCTR_RTS_NODELAY 0x00 |
| #define UART_17158_FCTR_RTS_4DELAY 0x01 |
| #define UART_17158_FCTR_RTS_6DELAY 0x02 |
| #define UART_17158_FCTR_RTS_8DELAY 0x03 |
| #define UART_17158_FCTR_RTS_12DELAY 0x12 |
| #define UART_17158_FCTR_RTS_16DELAY 0x05 |
| #define UART_17158_FCTR_RTS_20DELAY 0x13 |
| #define UART_17158_FCTR_RTS_24DELAY 0x06 |
| #define UART_17158_FCTR_RTS_28DELAY 0x14 |
| #define UART_17158_FCTR_RTS_32DELAY 0x07 |
| #define UART_17158_FCTR_RTS_36DELAY 0x16 |
| #define UART_17158_FCTR_RTS_40DELAY 0x08 |
| #define UART_17158_FCTR_RTS_44DELAY 0x09 |
| #define UART_17158_FCTR_RTS_48DELAY 0x10 |
| #define UART_17158_FCTR_RTS_52DELAY 0x11 |
| |
| #define UART_17158_FCTR_RTS_IRDA 0x10 |
| #define UART_17158_FCTR_RS485 0x20 |
| #define UART_17158_FCTR_TRGA 0x00 |
| #define UART_17158_FCTR_TRGB 0x40 |
| #define UART_17158_FCTR_TRGC 0x80 |
| #define UART_17158_FCTR_TRGD 0xC0 |
| |
| /* 17158 trigger table selects.. */ |
| #define UART_17158_FCTR_BIT6 0x40 |
| #define UART_17158_FCTR_BIT7 0x80 |
| |
| /* 17158 TX/RX memmapped buffer offsets */ |
| #define UART_17158_RX_FIFOSIZE 64 |
| #define UART_17158_TX_FIFOSIZE 64 |
| |
| /* 17158 Extended IIR's */ |
| #define UART_17158_IIR_RDI_TIMEOUT 0x0C /* Receiver data TIMEOUT */ |
| #define UART_17158_IIR_XONXOFF 0x10 /* Received an XON/XOFF char */ |
| #define UART_17158_IIR_HWFLOW_STATE_CHANGE 0x20 /* CTS/DSR or RTS/DTR state change */ |
| #define UART_17158_IIR_FIFO_ENABLED 0xC0 /* 16550 FIFOs are Enabled */ |
| |
| /* |
| * These are the extended interrupts that get sent |
| * back to us from the UART's 32bit interrupt register |
| */ |
| #define UART_17158_RX_LINE_STATUS 0x1 /* RX Ready */ |
| #define UART_17158_RXRDY_TIMEOUT 0x2 /* RX Ready Timeout */ |
| #define UART_17158_TXRDY 0x3 /* TX Ready */ |
| #define UART_17158_MSR 0x4 /* Modem State Change */ |
| #define UART_17158_TX_AND_FIFO_CLR 0x40 /* Transmitter Holding Reg Empty */ |
| #define UART_17158_RX_FIFO_DATA_ERROR 0x80 /* UART detected an RX FIFO Data error */ |
| |
| /* |
| * These are the EXTENDED definitions for the 17C158's Interrupt |
| * Enable Register. |
| */ |
| #define UART_17158_EFR_ECB 0x10 /* Enhanced control bit */ |
| #define UART_17158_EFR_IXON 0x2 /* Receiver compares Xon1/Xoff1 */ |
| #define UART_17158_EFR_IXOFF 0x8 /* Transmit Xon1/Xoff1 */ |
| #define UART_17158_EFR_RTSDTR 0x40 /* Auto RTS/DTR Flow Control Enable */ |
| #define UART_17158_EFR_CTSDSR 0x80 /* Auto CTS/DSR Flow COntrol Enable */ |
| |
| #define UART_17158_XOFF_DETECT 0x1 /* Indicates whether chip saw an incoming XOFF char */ |
| #define UART_17158_XON_DETECT 0x2 /* Indicates whether chip saw an incoming XON char */ |
| |
| #define UART_17158_IER_RSVD1 0x10 /* Reserved by Exar */ |
| #define UART_17158_IER_XOFF 0x20 /* Xoff Interrupt Enable */ |
| #define UART_17158_IER_RTSDTR 0x40 /* Output Interrupt Enable */ |
| #define UART_17158_IER_CTSDSR 0x80 /* Input Interrupt Enable */ |
| |
| /* |
| * Our Global Variables |
| */ |
| extern struct board_ops dgnc_neo_ops; |
| |
| #endif |
