/********************************************************************* * * Filename: nsc-ircc.h * Version: * Description: * Status: Experimental. * Author: Dag Brattli * Created at: Fri Nov 13 14:37:40 1998 * Modified at: Sun Jan 23 17:47:00 2000 * Modified by: Dag Brattli * * Copyright (c) 1998-2000 Dag Brattli * Copyright (c) 1998 Lichen Wang, * Copyright (c) 1998 Actisys Corp., www.actisys.com * All Rights Reserved * * 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. * * Neither Dag Brattli nor University of Tromsų admit liability nor * provide warranty for any of this software. This material is * provided "AS-IS" and at no charge. * ********************************************************************/ #ifndef NSC_IRCC_H #define NSC_IRCC_H #include #include #include /* DMA modes needed */ #define DMA_TX_MODE 0x08 /* Mem to I/O, ++, demand. */ #define DMA_RX_MODE 0x04 /* I/O to mem, ++, demand. */ /* Config registers for the '108 */ #define CFG_BAIC 0x00 #define CFG_CSRT 0x01 #define CFG_MCTL 0x02 /* Config registers for the '338 */ #define CFG_FER 0x00 #define CFG_FAR 0x01 #define CFG_PTR 0x02 #define CFG_PNP0 0x1b #define CFG_PNP1 0x1c #define CFG_PNP3 0x4f /* Flags for configuration register CRF0 */ #define APEDCRC 0x02 #define ENBNKSEL 0x01 /* Set 0 */ #define TXD 0x00 /* Transmit data port */ #define RXD 0x00 /* Receive data port */ /* Register 1 */ #define IER 0x01 /* Interrupt Enable Register*/ #define IER_RXHDL_IE 0x01 /* Receiver high data level interrupt */ #define IER_TXLDL_IE 0x02 /* Transeiver low data level interrupt */ #define IER_LS_IE 0x04//* Link Status Interrupt */ #define IER_ETXURI 0x04 /* Tx underrun */ #define IER_DMA_IE 0x10 /* DMA finished interrupt */ #define IER_TXEMP_IE 0x20 #define IER_SFIF_IE 0x40 /* Frame status FIFO intr */ #define IER_TMR_IE 0x80 /* Timer event */ #define FCR 0x02 /* (write only) */ #define FCR_FIFO_EN 0x01 /* Enable FIFO's */ #define FCR_RXSR 0x02 /* Rx FIFO soft reset */ #define FCR_TXSR 0x04 /* Tx FIFO soft reset */ #define FCR_RXTH 0x40 /* Rx FIFO threshold (set to 16) */ #define FCR_TXTH 0x20 /* Tx FIFO threshold (set to 17) */ #define EIR 0x02 /* (read only) */ #define EIR_RXHDL_EV 0x01 #define EIR_TXLDL_EV 0x02 #define EIR_LS_EV 0x04 #define EIR_DMA_EV 0x10 #define EIR_TXEMP_EV 0x20 #define EIR_SFIF_EV 0x40 #define EIR_TMR_EV 0x80 #define LCR 0x03 /* Link control register */ #define LCR_WLS_8 0x03 /* 8 bits */ #define BSR 0x03 /* Bank select register */ #define BSR_BKSE 0x80 #define BANK0 LCR_WLS_8 /* Must make sure that we set 8N1 */ #define BANK1 0x80 #define BANK2 0xe0 #define BANK3 0xe4 #define BANK4 0xe8 #define BANK5 0xec #define BANK6 0xf0 #define BANK7 0xf4 #define MCR 0x04 /* Mode Control Register */ #define MCR_MODE_MASK ~(0xd0) #define MCR_UART 0x00 #define MCR_RESERVED 0x20 #define MCR_SHARP_IR 0x40 #define MCR_SIR 0x60 #define MCR_MIR 0x80 #define MCR_FIR 0xa0 #define MCR_CEIR 0xb0 #define MCR_IR_PLS 0x10 #define MCR_DMA_EN 0x04 #define MCR_EN_IRQ 0x08 #define MCR_TX_DFR 0x08 #define LSR 0x05 /* Link status register */ #define LSR_RXDA 0x01 /* Receiver data available */ #define LSR_TXRDY 0x20 /* Transmitter ready */ #define LSR_TXEMP 0x40 /* Transmitter empty */ #define ASCR 0x07 /* Auxillary Status and Control Register */ #define ASCR_RXF_TOUT 0x01 /* Rx FIFO timeout */ #define ASCR_FEND_INF 0x02 /* Frame end bytes in rx FIFO */ #define ASCR_S_EOT 0x04 /* Set end of transmission */ #define ASCT_RXBSY 0x20 /* Rx busy */ #define ASCR_TXUR 0x40 /* Transeiver underrun */ #define ASCR_CTE 0x80 /* Clear timer event */ /* Bank 2 */ #define BGDL 0x00 /* Baud Generator Divisor Port (Low Byte) */ #define BGDH 0x01 /* Baud Generator Divisor Port (High Byte) */ #define ECR1 0x02 /* Extended Control Register 1 */ #define ECR1_EXT_SL 0x01 /* Extended Mode Select */ #define ECR1_DMANF 0x02 /* DMA Fairness */ #define ECR1_DMATH 0x04 /* DMA Threshold */ #define ECR1_DMASWP 0x08 /* DMA Swap */ #define EXCR2 0x04 #define EXCR2_TFSIZ 0x01 /* Rx FIFO size = 32 */ #define EXCR2_RFSIZ 0x04 /* Tx FIFO size = 32 */ #define TXFLV 0x06 /* Tx FIFO level */ #define RXFLV 0x07 /* Rx FIFO level */ /* Bank 3 */ #define MID 0x00 /* Bank 4 */ #define TMRL 0x00 /* Timer low byte */ #define TMRH 0x01 /* Timer high byte */ #define IRCR1 0x02 /* Infrared control register 1 */ #define IRCR1_TMR_EN 0x01 /* Timer enable */ #define TFRLL 0x04 #define TFRLH 0x05 #define RFRLL 0x06 #define RFRLH 0x07 /* Bank 5 */ #define IRCR2 0x04 /* Infrared control register 2 */ #define IRCR2_MDRS 0x04 /* MIR data rate select */ #define IRCR2_FEND_MD 0x20 /* */ #define FRM_ST 0x05 /* Frame status FIFO */ #define FRM_ST_VLD 0x80 /* Frame status FIFO data valid */ #define FRM_ST_ERR_MSK 0x5f #define FRM_ST_LOST_FR 0x40 /* Frame lost */ #define FRM_ST_MAX_LEN 0x10 /* Max frame len exceeded */ #define FRM_ST_PHY_ERR 0x08 /* Physical layer error */ #define FRM_ST_BAD_CRC 0x04 #define FRM_ST_OVR1 0x02 /* Rx FIFO overrun */ #define FRM_ST_OVR2 0x01 /* Frame status FIFO overrun */ #define RFLFL 0x06 #define RFLFH 0x07 /* Bank 6 */ #define IR_CFG2 0x00 #define IR_CFG2_DIS_CRC 0x02 /* Bank 7 */ #define IRM_CR 0x07 /* Infrared module control register */ #define IRM_CR_IRX_MSL 0x40 #define IRM_CR_AF_MNT 0x80 /* Automatic format */ /* NSC chip information */ struct nsc_chip { char *name; /* Name of chipset */ int cfg[3]; /* Config registers */ u_int8_t cid_index; /* Chip identification index reg */ u_int8_t cid_value; /* Chip identification expected value */ u_int8_t cid_mask; /* Chip identification revision mask */ /* Functions for probing and initializing the specific chip */ int (*probe)(struct nsc_chip *chip, chipio_t *info); int (*init)(struct nsc_chip *chip, chipio_t *info); }; typedef struct nsc_chip nsc_chip_t; /* For storing entries in the status FIFO */ struct st_fifo_entry { int status; int len; }; #define MAX_TX_WINDOW 7 #define MAX_RX_WINDOW 7 struct st_fifo { struct st_fifo_entry entries[MAX_RX_WINDOW]; int pending_bytes; int head; int tail; int len; }; struct frame_cb { void *start; /* Start of frame in DMA mem */ int len; /* Lenght of frame in DMA mem */ }; struct tx_fifo { struct frame_cb queue[MAX_TX_WINDOW]; /* Info about frames in queue */ int ptr; /* Currently being sent */ int len; /* Lenght of queue */ int free; /* Next free slot */ void *tail; /* Next free start in DMA mem */ }; /* Private data for each instance */ struct nsc_ircc_cb { struct st_fifo st_fifo; /* Info about received frames */ struct tx_fifo tx_fifo; /* Info about frames to be transmitted */ struct net_device *netdev; /* Yes! we are some kind of netdevice */ struct net_device_stats stats; struct irlap_cb *irlap; /* The link layer we are binded to */ struct qos_info qos; /* QoS capabilities for this device */ chipio_t io; /* IrDA controller information */ iobuff_t tx_buff; /* Transmit buffer */ iobuff_t rx_buff; /* Receive buffer */ __u8 ier; /* Interrupt enable register */ struct timeval stamp; struct timeval now; spinlock_t lock; /* For serializing operations */ __u32 flags; /* Interface flags */ __u32 new_speed; int index; /* Instance index */ }; static inline void switch_bank(int iobase, int bank) { outb(bank, iobase+BSR); } #endif /* NSC_IRCC_H */