patch-2.4.3 linux/drivers/usb/serial/io_16654.h

• Lines: 196
• Date: Mon Mar 19 17:21:54 2001
• Orig file: v2.4.2/linux/drivers/usb/serial/io_16654.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.2/linux/drivers/usb/serial/io_16654.h linux/drivers/usb/serial/io_16654.h
@@ -0,0 +1,195 @@
+/************************************************************************
+ *
+ *	16654.H		Definitions for 16C654 UART used on EdgePorts
+ *
+ *	Copyright (c) 1998 Inside Out Networks, Inc.
+ *	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 of the License, or
+ *	(at your option) any later version.
+ *
+ ************************************************************************/
+
+#if !defined(_16654_H)
+#define	_16654_H
+
+/************************************************************************
+ *
+ *			D e f i n e s   /   T y p e d e f s
+ *
+ ************************************************************************/
+
+	//
+	// UART register numbers
+	// Numbers 0-7 are passed to the Edgeport directly. Numbers 8 and
+	// above are used internally to indicate that we must enable access
+	// to them via LCR bit 0x80 or LCR = 0xBF.
+	// The register number sent to the Edgeport is then (x & 0x7).
+	//
+	// Driver must not access registers that affect operation of the
+	// the EdgePort firmware -- that includes THR, RHR, IER, FCR.
+
+
+#define THR			0	// ! Transmit Holding Register (Write)
+#define RDR			0	// ! Receive Holding Register (Read)
+#define IER			1	// ! Interrupt Enable Register
+#define FCR			2	// ! Fifo Control Register (Write)
+#define ISR			2	// Interrupt Status Register (Read)
+#define LCR			3	// Line Control Register
+#define MCR			4	// Modem Control Register
+#define LSR			5	// Line Status Register
+#define MSR			6	// Modem Status Register
+#define SPR			7	// ScratchPad Register
+#define DLL			8	// Bank2[ 0 ] Divisor Latch LSB
+#define DLM			9	// Bank2[ 1 ] Divisor Latch MSB
+#define EFR			10	// Bank2[ 2 ] Extended Function Register
+//efine unused			11	// Bank2[ 3 ]
+#define XON1			12	// Bank2[ 4 ] Xon-1
+#define XON2			13	// Bank2[ 5 ] Xon-2
+#define XOFF1			14	// Bank2[ 6 ] Xoff-1
+#define XOFF2			15	// Bank2[ 7 ] Xoff-2
+
+#define	NUM_16654_REGS		16
+
+#define IS_REG_2ND_BANK(x)	((x) >= 8)
+
+	//
+	// Bit definitions for each register
+	//
+
+#define IER_RX			0x01	// Enable receive interrupt
+#define IER_TX			0x02	// Enable transmit interrupt
+#define IER_RXS			0x04	// Enable receive status interrupt
+#define IER_MDM			0x08	// Enable modem status interrupt
+#define IER_SLEEP		0x10	// Enable sleep mode
+#define IER_XOFF		0x20	// Enable s/w flow control (XOFF) interrupt
+#define IER_RTS			0x40	// Enable RTS interrupt
+#define IER_CTS			0x80	// Enable CTS interrupt
+#define IER_ENABLE_ALL		0xFF	// Enable all ints
+
+
+#define FCR_FIFO_EN		0x01	// Enable FIFOs
+#define FCR_RXCLR		0x02	// Reset Rx FIFO
+#define FCR_TXCLR		0x04	// Reset Tx FIFO
+#define FCR_DMA_BLK		0x08	// Enable DMA block mode
+#define FCR_TX_LEVEL_MASK	0x30	// Mask for Tx FIFO Level
+#define FCR_TX_LEVEL_8		0x00	// Tx FIFO Level =  8 bytes
+#define FCR_TX_LEVEL_16		0x10	// Tx FIFO Level = 16 bytes
+#define FCR_TX_LEVEL_32		0x20	// Tx FIFO Level = 32 bytes
+#define FCR_TX_LEVEL_56		0x30	// Tx FIFO Level = 56 bytes
+#define FCR_RX_LEVEL_MASK	0xC0	// Mask for Rx FIFO Level
+#define FCR_RX_LEVEL_8		0x00	// Rx FIFO Level =  8 bytes
+#define FCR_RX_LEVEL_16		0x40	// Rx FIFO Level = 16 bytes
+#define FCR_RX_LEVEL_56		0x80	// Rx FIFO Level = 56 bytes
+#define FCR_RX_LEVEL_60		0xC0	// Rx FIFO Level = 60 bytes
+
+
+#define ISR_INT_MDM_STATUS	0x00	// Modem status int pending
+#define ISR_INT_NONE		0x01	// No interrupt pending
+#define ISR_INT_TXRDY		0x02	// Tx ready int pending
+#define ISR_INT_RXRDY		0x04	// Rx ready int pending
+#define ISR_INT_LINE_STATUS	0x06	// Line status int pending
+#define ISR_INT_RX_TIMEOUT	0x0C	// Rx timeout int pending
+#define ISR_INT_RX_XOFF		0x10	// Rx Xoff int pending
+#define ISR_INT_RTS_CTS		0x20	// RTS/CTS change int pending
+#define ISR_FIFO_ENABLED	0xC0	// Bits set if FIFOs enabled
+#define ISR_INT_BITS_MASK	0x3E	// Mask to isolate valid int causes
+
+
+#define LCR_BITS_5		0x00	// 5 bits/char
+#define LCR_BITS_6		0x01	// 6 bits/char
+#define LCR_BITS_7		0x02	// 7 bits/char
+#define LCR_BITS_8		0x03	// 8 bits/char
+#define LCR_BITS_MASK		0x03	// Mask for bits/char field
+
+#define LCR_STOP_1		0x00	// 1 stop bit
+#define LCR_STOP_1_5		0x04	// 1.5 stop bits (if 5   bits/char)
+#define LCR_STOP_2		0x04	// 2 stop bits   (if 6-8 bits/char)
+#define LCR_STOP_MASK		0x04	// Mask for stop bits field
+
+#define LCR_PAR_NONE		0x00	// No parity
+#define LCR_PAR_ODD		0x08	// Odd parity
+#define LCR_PAR_EVEN		0x18	// Even parity
+#define LCR_PAR_MARK		0x28	// Force parity bit to 1
+#define LCR_PAR_SPACE		0x38	// Force parity bit to 0
+#define LCR_PAR_MASK		0x38	// Mask for parity field
+
+#define LCR_SET_BREAK		0x40	// Set Break condition
+#define LCR_DL_ENABLE		0x80	// Enable access to divisor latch
+
+#define LCR_ACCESS_EFR		0xBF	// Load this value to access DLL,DLM,
+					// and also the '654-only registers
+					// EFR, XON1, XON2, XOFF1, XOFF2
+
+
+#define MCR_DTR			0x01	// Assert DTR
+#define MCR_RTS			0x02	// Assert RTS
+#define MCR_OUT1		0x04	// Loopback only: Sets state of RI
+#define MCR_MASTER_IE		0x08	// Enable interrupt outputs
+#define MCR_LOOPBACK		0x10	// Set internal (digital) loopback mode
+#define MCR_XON_ANY		0x20	// Enable any char to exit XOFF mode
+#define MCR_IR_ENABLE		0x40	// Enable IrDA functions
+#define MCR_BRG_DIV_4		0x80	// Divide baud rate clk by /4 instead of /1
+
+
+#define LSR_RX_AVAIL		0x01	// Rx data available
+#define LSR_OVER_ERR		0x02	// Rx overrun
+#define LSR_PAR_ERR		0x04	// Rx parity error
+#define LSR_FRM_ERR		0x08	// Rx framing error
+#define LSR_BREAK		0x10	// Rx break condition detected
+#define LSR_TX_EMPTY		0x20	// Tx Fifo empty
+#define LSR_TX_ALL_EMPTY	0x40	// Tx Fifo and shift register empty
+#define LSR_FIFO_ERR		0x80	// Rx Fifo contains at least 1 erred char
+
+
+#define MSR_DELTA_CTS		0x01	// CTS changed from last read
+#define MSR_DELTA_DSR		0x02	// DSR changed from last read
+#define MSR_DELTA_RI		0x04	// RI  changed from 0 -> 1
+#define MSR_DELTA_CD		0x08	// CD  changed from last read
+#define MSR_CTS			0x10	// Current state of CTS
+#define MSR_DSR			0x20	// Current state of DSR
+#define MSR_RI			0x40	// Current state of RI
+#define MSR_CD			0x80	// Current state of CD
+
+
+
+					//	Tx		Rx
+					//-------------------------------
+#define EFR_SWFC_NONE		0x00	//	None		None
+#define EFR_SWFC_RX1		0x02 	//	None		XOFF1
+#define EFR_SWFC_RX2		0x01 	//	None		XOFF2
+#define EFR_SWFC_RX12		0x03 	//	None		XOFF1 & XOFF2
+#define EFR_SWFC_TX1		0x08 	//	XOFF1		None
+#define EFR_SWFC_TX1_RX1	0x0a 	//	XOFF1		XOFF1
+#define EFR_SWFC_TX1_RX2	0x09 	//	XOFF1		XOFF2
+#define EFR_SWFC_TX1_RX12	0x0b 	//	XOFF1		XOFF1 & XOFF2
+#define EFR_SWFC_TX2		0x04 	//	XOFF2		None
+#define EFR_SWFC_TX2_RX1	0x06 	//	XOFF2		XOFF1
+#define EFR_SWFC_TX2_RX2	0x05 	//	XOFF2		XOFF2
+#define EFR_SWFC_TX2_RX12	0x07 	//	XOFF2		XOFF1 & XOFF2
+#define EFR_SWFC_TX12		0x0c 	//	XOFF1 & XOFF2	None
+#define EFR_SWFC_TX12_RX1	0x0e 	//	XOFF1 & XOFF2	XOFF1
+#define EFR_SWFC_TX12_RX2	0x0d 	//	XOFF1 & XOFF2	XOFF2
+#define EFR_SWFC_TX12_RX12	0x0f 	//	XOFF1 & XOFF2	XOFF1 & XOFF2
+
+#define EFR_TX_FC_MASK		0x0c	// Mask to isolate Rx flow control
+#define EFR_TX_FC_NONE		0x00	// No Tx Xon/Xoff flow control
+#define EFR_TX_FC_X1		0x08	// Transmit Xon1/Xoff1
+#define EFR_TX_FC_X2		0x04	// Transmit Xon2/Xoff2
+#define EFR_TX_FC_X1_2		0x0c	// Transmit Xon1&2/Xoff1&2
+
+#define EFR_RX_FC_MASK		0x03	// Mask to isolate Rx flow control
+#define EFR_RX_FC_NONE		0x00	// No Rx Xon/Xoff flow control
+#define EFR_RX_FC_X1		0x02	// Receiver compares Xon1/Xoff1
+#define EFR_RX_FC_X2		0x01	// Receiver compares Xon2/Xoff2
+#define EFR_RX_FC_X1_2		0x03	// Receiver compares Xon1&2/Xoff1&2
+
+
+#define EFR_SWFC_MASK		0x0F	// Mask for software flow control field
+#define EFR_ENABLE_16654	0x10	// Enable 16C654 features
+#define EFR_SPEC_DETECT		0x20	// Enable special character detect interrupt
+#define EFR_AUTO_RTS		0x40	// Use RTS for Rx flow control
+#define EFR_AUTO_CTS		0x80	// Use CTS for Tx flow control
+
+#endif	// if !defined(_16654_H)
+