/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* $Id: cosa.h,v 1.6 1999/01/06 14:02:44 kas Exp $ */
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/*
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* Copyright (C) 1995-1997 Jan "Yenya" Kasprzak <kas@fi.muni.cz>
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*/
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#ifndef COSA_H__
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#define COSA_H__
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#include <linux/ioctl.h>
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#ifdef __KERNEL__
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/* status register - output bits */
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#define SR_RX_DMA_ENA 0x04 /* receiver DMA enable bit */
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#define SR_TX_DMA_ENA 0x08 /* transmitter DMA enable bit */
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#define SR_RST 0x10 /* SRP reset */
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#define SR_USR_INT_ENA 0x20 /* user interrupt enable bit */
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#define SR_TX_INT_ENA 0x40 /* transmitter interrupt enable bit */
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#define SR_RX_INT_ENA 0x80 /* receiver interrupt enable bit */
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/* status register - input bits */
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#define SR_USR_RQ 0x20 /* user interrupt request pending */
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#define SR_TX_RDY 0x40 /* transmitter empty (ready) */
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#define SR_RX_RDY 0x80 /* receiver data ready */
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#define SR_UP_REQUEST 0x02 /* request from SRP to transfer data
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up to PC */
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#define SR_DOWN_REQUEST 0x01 /* SRP is able to transfer data down
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from PC to SRP */
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#define SR_END_OF_TRANSFER 0x03 /* SRP signalize end of
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transfer (up or down) */
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#define SR_CMD_FROM_SRP_MASK 0x03 /* mask to get SRP command */
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/* bits in driver status byte definitions : */
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#define SR_RDY_RCV 0x01 /* ready to receive packet */
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#define SR_RDY_SND 0x02 /* ready to send packet */
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#define SR_CMD_PND 0x04 /* command pending */ /* not currently used */
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/* ???? */
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#define SR_PKT_UP 0x01 /* transfer of packet up in progress */
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#define SR_PKT_DOWN 0x02 /* transfer of packet down in progress */
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#endif /* __KERNEL__ */
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#define SR_LOAD_ADDR 0x4400 /* SRP microcode load address */
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#define SR_START_ADDR 0x4400 /* SRP microcode start address */
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#define COSA_LOAD_ADDR 0x400 /* SRP microcode load address */
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#define COSA_MAX_FIRMWARE_SIZE 0x10000
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/* ioctls */
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struct cosa_download {
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int addr, len;
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char __user *code;
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};
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/* Reset the device */
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#define COSAIORSET _IO('C',0xf0)
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/* Start microcode at given address */
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#define COSAIOSTRT _IOW('C',0xf1, int)
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/* Read the block from the device memory */
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#define COSAIORMEM _IOWR('C',0xf2, struct cosa_download *)
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/* actually the struct cosa_download itself; this is to keep
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* the ioctl number same as in 2.4 in order to keep the user-space
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* utils compatible. */
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/* Write the block to the device memory (i.e. download the microcode) */
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#define COSAIODOWNLD _IOW('C',0xf2, struct cosa_download *)
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/* actually the struct cosa_download itself; this is to keep
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* the ioctl number same as in 2.4 in order to keep the user-space
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* utils compatible. */
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/* Read the device type (one of "srp", "cosa", and "cosa8" for now) */
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#define COSAIORTYPE _IOR('C',0xf3, char *)
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/* Read the device identification string */
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#define COSAIORIDSTR _IOR('C',0xf4, char *)
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/* Maximum length of the identification string. */
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#define COSA_MAX_ID_STRING 128
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/* Increment/decrement the module usage count :-) */
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/* #define COSAIOMINC _IO('C',0xf5) */
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/* #define COSAIOMDEC _IO('C',0xf6) */
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/* Get the total number of cards installed */
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#define COSAIONRCARDS _IO('C',0xf7)
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/* Get the number of channels on this card */
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#define COSAIONRCHANS _IO('C',0xf8)
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/* Set the driver for the bus-master operations */
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#define COSAIOBMSET _IOW('C', 0xf9, unsigned short)
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#define COSA_BM_OFF 0 /* Bus-mastering off - use ISA DMA (default) */
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#define COSA_BM_ON 1 /* Bus-mastering on - faster but untested */
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/* Gets the busmaster status */
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#define COSAIOBMGET _IO('C', 0xfa)
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#endif /* !COSA_H__ */
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