282 lines
9.0 KiB
C
282 lines
9.0 KiB
C
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/*********************************************************************
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*
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* Filename: nsc-ircc.h
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* Version:
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* Description:
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* Status: Experimental.
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* Author: Dag Brattli <dagb@cs.uit.no>
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* Created at: Fri Nov 13 14:37:40 1998
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* Modified at: Sun Jan 23 17:47:00 2000
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* Modified by: Dag Brattli <dagb@cs.uit.no>
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*
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* Copyright (c) 1998-2000 Dag Brattli <dagb@cs.uit.no>
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* Copyright (c) 1998 Lichen Wang, <lwang@actisys.com>
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* Copyright (c) 1998 Actisys Corp., www.actisys.com
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* Neither Dag Brattli nor University of Tromsø admit liability nor
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* provide warranty for any of this software. This material is
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* provided "AS-IS" and at no charge.
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*
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********************************************************************/
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#ifndef NSC_IRCC_H
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#define NSC_IRCC_H
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#include <linux/ktime.h>
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#include <linux/spinlock.h>
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#include <linux/pm.h>
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#include <linux/types.h>
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#include <asm/io.h>
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/* Features for chips (set in driver_data) */
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#define NSC_FORCE_DONGLE_TYPE9 0x00000001
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/* DMA modes needed */
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#define DMA_TX_MODE 0x08 /* Mem to I/O, ++, demand. */
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#define DMA_RX_MODE 0x04 /* I/O to mem, ++, demand. */
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/* Config registers for the '108 */
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#define CFG_108_BAIC 0x00
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#define CFG_108_CSRT 0x01
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#define CFG_108_MCTL 0x02
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/* Config registers for the '338 */
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#define CFG_338_FER 0x00
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#define CFG_338_FAR 0x01
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#define CFG_338_PTR 0x02
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#define CFG_338_PNP0 0x1b
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#define CFG_338_PNP1 0x1c
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#define CFG_338_PNP3 0x4f
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/* Config registers for the '39x (in the logical device bank) */
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#define CFG_39X_LDN 0x07 /* Logical device number (Super I/O bank) */
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#define CFG_39X_SIOCF1 0x21 /* SuperI/O Config */
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#define CFG_39X_ACT 0x30 /* Device activation */
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#define CFG_39X_BASEH 0x60 /* Device base address (high bits) */
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#define CFG_39X_BASEL 0x61 /* Device base address (low bits) */
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#define CFG_39X_IRQNUM 0x70 /* Interrupt number & wake up enable */
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#define CFG_39X_IRQSEL 0x71 /* Interrupt select (edge/level + polarity) */
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#define CFG_39X_DMA0 0x74 /* DMA 0 configuration */
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#define CFG_39X_DMA1 0x75 /* DMA 1 configuration */
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#define CFG_39X_SPC 0xF0 /* Serial port configuration register */
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/* Flags for configuration register CRF0 */
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#define APEDCRC 0x02
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#define ENBNKSEL 0x01
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/* Set 0 */
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#define TXD 0x00 /* Transmit data port */
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#define RXD 0x00 /* Receive data port */
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/* Register 1 */
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#define IER 0x01 /* Interrupt Enable Register*/
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#define IER_RXHDL_IE 0x01 /* Receiver high data level interrupt */
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#define IER_TXLDL_IE 0x02 /* Transeiver low data level interrupt */
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#define IER_LS_IE 0x04//* Link Status Interrupt */
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#define IER_ETXURI 0x04 /* Tx underrun */
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#define IER_DMA_IE 0x10 /* DMA finished interrupt */
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#define IER_TXEMP_IE 0x20
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#define IER_SFIF_IE 0x40 /* Frame status FIFO intr */
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#define IER_TMR_IE 0x80 /* Timer event */
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#define FCR 0x02 /* (write only) */
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#define FCR_FIFO_EN 0x01 /* Enable FIFO's */
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#define FCR_RXSR 0x02 /* Rx FIFO soft reset */
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#define FCR_TXSR 0x04 /* Tx FIFO soft reset */
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#define FCR_RXTH 0x40 /* Rx FIFO threshold (set to 16) */
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#define FCR_TXTH 0x20 /* Tx FIFO threshold (set to 17) */
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#define EIR 0x02 /* (read only) */
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#define EIR_RXHDL_EV 0x01
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#define EIR_TXLDL_EV 0x02
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#define EIR_LS_EV 0x04
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#define EIR_DMA_EV 0x10
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#define EIR_TXEMP_EV 0x20
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#define EIR_SFIF_EV 0x40
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#define EIR_TMR_EV 0x80
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#define LCR 0x03 /* Link control register */
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#define LCR_WLS_8 0x03 /* 8 bits */
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#define BSR 0x03 /* Bank select register */
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#define BSR_BKSE 0x80
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#define BANK0 LCR_WLS_8 /* Must make sure that we set 8N1 */
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#define BANK1 0x80
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#define BANK2 0xe0
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#define BANK3 0xe4
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#define BANK4 0xe8
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#define BANK5 0xec
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#define BANK6 0xf0
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#define BANK7 0xf4
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#define MCR 0x04 /* Mode Control Register */
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#define MCR_MODE_MASK ~(0xd0)
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#define MCR_UART 0x00
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#define MCR_RESERVED 0x20
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#define MCR_SHARP_IR 0x40
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#define MCR_SIR 0x60
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#define MCR_MIR 0x80
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#define MCR_FIR 0xa0
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#define MCR_CEIR 0xb0
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#define MCR_IR_PLS 0x10
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#define MCR_DMA_EN 0x04
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#define MCR_EN_IRQ 0x08
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#define MCR_TX_DFR 0x08
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#define LSR 0x05 /* Link status register */
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#define LSR_RXDA 0x01 /* Receiver data available */
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#define LSR_TXRDY 0x20 /* Transmitter ready */
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#define LSR_TXEMP 0x40 /* Transmitter empty */
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#define ASCR 0x07 /* Auxiliary Status and Control Register */
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#define ASCR_RXF_TOUT 0x01 /* Rx FIFO timeout */
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#define ASCR_FEND_INF 0x02 /* Frame end bytes in rx FIFO */
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#define ASCR_S_EOT 0x04 /* Set end of transmission */
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#define ASCT_RXBSY 0x20 /* Rx busy */
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#define ASCR_TXUR 0x40 /* Transeiver underrun */
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#define ASCR_CTE 0x80 /* Clear timer event */
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/* Bank 2 */
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#define BGDL 0x00 /* Baud Generator Divisor Port (Low Byte) */
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#define BGDH 0x01 /* Baud Generator Divisor Port (High Byte) */
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#define ECR1 0x02 /* Extended Control Register 1 */
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#define ECR1_EXT_SL 0x01 /* Extended Mode Select */
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#define ECR1_DMANF 0x02 /* DMA Fairness */
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#define ECR1_DMATH 0x04 /* DMA Threshold */
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#define ECR1_DMASWP 0x08 /* DMA Swap */
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#define EXCR2 0x04
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#define EXCR2_TFSIZ 0x01 /* Rx FIFO size = 32 */
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#define EXCR2_RFSIZ 0x04 /* Tx FIFO size = 32 */
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#define TXFLV 0x06 /* Tx FIFO level */
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#define RXFLV 0x07 /* Rx FIFO level */
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/* Bank 3 */
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#define MID 0x00
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/* Bank 4 */
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#define TMRL 0x00 /* Timer low byte */
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#define TMRH 0x01 /* Timer high byte */
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#define IRCR1 0x02 /* Infrared control register 1 */
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#define IRCR1_TMR_EN 0x01 /* Timer enable */
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#define TFRLL 0x04
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#define TFRLH 0x05
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#define RFRLL 0x06
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#define RFRLH 0x07
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/* Bank 5 */
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#define IRCR2 0x04 /* Infrared control register 2 */
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#define IRCR2_MDRS 0x04 /* MIR data rate select */
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#define IRCR2_FEND_MD 0x20 /* */
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#define FRM_ST 0x05 /* Frame status FIFO */
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#define FRM_ST_VLD 0x80 /* Frame status FIFO data valid */
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#define FRM_ST_ERR_MSK 0x5f
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#define FRM_ST_LOST_FR 0x40 /* Frame lost */
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#define FRM_ST_MAX_LEN 0x10 /* Max frame len exceeded */
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#define FRM_ST_PHY_ERR 0x08 /* Physical layer error */
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#define FRM_ST_BAD_CRC 0x04
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#define FRM_ST_OVR1 0x02 /* Rx FIFO overrun */
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#define FRM_ST_OVR2 0x01 /* Frame status FIFO overrun */
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#define RFLFL 0x06
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#define RFLFH 0x07
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/* Bank 6 */
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#define IR_CFG2 0x00
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#define IR_CFG2_DIS_CRC 0x02
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/* Bank 7 */
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#define IRM_CR 0x07 /* Infrared module control register */
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#define IRM_CR_IRX_MSL 0x40
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#define IRM_CR_AF_MNT 0x80 /* Automatic format */
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/* NSC chip information */
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struct nsc_chip {
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char *name; /* Name of chipset */
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int cfg[3]; /* Config registers */
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u_int8_t cid_index; /* Chip identification index reg */
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u_int8_t cid_value; /* Chip identification expected value */
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u_int8_t cid_mask; /* Chip identification revision mask */
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/* Functions for probing and initializing the specific chip */
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int (*probe)(struct nsc_chip *chip, chipio_t *info);
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int (*init)(struct nsc_chip *chip, chipio_t *info);
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};
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typedef struct nsc_chip nsc_chip_t;
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/* For storing entries in the status FIFO */
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struct st_fifo_entry {
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int status;
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int len;
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};
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#define MAX_TX_WINDOW 7
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#define MAX_RX_WINDOW 7
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struct st_fifo {
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struct st_fifo_entry entries[MAX_RX_WINDOW];
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int pending_bytes;
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int head;
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int tail;
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int len;
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};
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struct frame_cb {
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void *start; /* Start of frame in DMA mem */
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int len; /* Length of frame in DMA mem */
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};
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struct tx_fifo {
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struct frame_cb queue[MAX_TX_WINDOW]; /* Info about frames in queue */
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int ptr; /* Currently being sent */
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int len; /* Length of queue */
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int free; /* Next free slot */
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void *tail; /* Next free start in DMA mem */
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};
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/* Private data for each instance */
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struct nsc_ircc_cb {
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struct st_fifo st_fifo; /* Info about received frames */
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struct tx_fifo tx_fifo; /* Info about frames to be transmitted */
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struct net_device *netdev; /* Yes! we are some kind of netdevice */
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struct irlap_cb *irlap; /* The link layer we are binded to */
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struct qos_info qos; /* QoS capabilities for this device */
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chipio_t io; /* IrDA controller information */
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iobuff_t tx_buff; /* Transmit buffer */
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iobuff_t rx_buff; /* Receive buffer */
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dma_addr_t tx_buff_dma;
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dma_addr_t rx_buff_dma;
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__u8 ier; /* Interrupt enable register */
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ktime_t stamp;
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spinlock_t lock; /* For serializing operations */
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__u32 new_speed;
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int index; /* Instance index */
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struct platform_device *pldev;
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};
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static inline void switch_bank(int iobase, int bank)
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{
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outb(bank, iobase+BSR);
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}
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#endif /* NSC_IRCC_H */
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