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 */