diff options
Diffstat (limited to 'drivers/net/irda/nsc-ircc.h')
| -rw-r--r-- | drivers/net/irda/nsc-ircc.h | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/drivers/net/irda/nsc-ircc.h b/drivers/net/irda/nsc-ircc.h new file mode 100644 index 000000000000..6edf7e514624 --- /dev/null +++ b/drivers/net/irda/nsc-ircc.h @@ -0,0 +1,280 @@ +/********************************************************************* + * + * Filename: nsc-ircc.h + * Version: + * Description: + * Status: Experimental. + * Author: Dag Brattli <dagb@cs.uit.no> + * Created at: Fri Nov 13 14:37:40 1998 + * Modified at: Sun Jan 23 17:47:00 2000 + * Modified by: Dag Brattli <dagb@cs.uit.no> + * + * Copyright (c) 1998-2000 Dag Brattli <dagb@cs.uit.no> + * Copyright (c) 1998 Lichen Wang, <lwang@actisys.com> + * 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 <linux/time.h> + +#include <linux/spinlock.h> +#include <linux/pm.h> +#include <linux/types.h> +#include <asm/io.h> + +/* 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_108_BAIC 0x00 +#define CFG_108_CSRT 0x01 +#define CFG_108_MCTL 0x02 + +/* Config registers for the '338 */ +#define CFG_338_FER 0x00 +#define CFG_338_FAR 0x01 +#define CFG_338_PTR 0x02 +#define CFG_338_PNP0 0x1b +#define CFG_338_PNP1 0x1c +#define CFG_338_PNP3 0x4f + +/* Config registers for the '39x (in the logical device bank) */ +#define CFG_39X_LDN 0x07 /* Logical device number (Super I/O bank) */ +#define CFG_39X_SIOCF1 0x21 /* SuperI/O Config */ +#define CFG_39X_ACT 0x30 /* Device activation */ +#define CFG_39X_BASEH 0x60 /* Device base address (high bits) */ +#define CFG_39X_BASEL 0x61 /* Device base address (low bits) */ +#define CFG_39X_IRQNUM 0x70 /* Interrupt number & wake up enable */ +#define CFG_39X_IRQSEL 0x71 /* Interrupt select (edge/level + polarity) */ +#define CFG_39X_DMA0 0x74 /* DMA 0 configuration */ +#define CFG_39X_DMA1 0x75 /* DMA 1 configuration */ +#define CFG_39X_SPC 0xF0 /* Serial port configuration register */ + +/* 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 */ + dma_addr_t tx_buff_dma; + dma_addr_t rx_buff_dma; + + __u8 ier; /* Interrupt enable register */ + + struct timeval stamp; + struct timeval now; + + spinlock_t lock; /* For serializing operations */ + + __u32 new_speed; + int index; /* Instance index */ + + struct pm_dev *dev; +}; + +static inline void switch_bank(int iobase, int bank) +{ + outb(bank, iobase+BSR); +} + +#endif /* NSC_IRCC_H */ |