1/* SPDX-License-Identifier: GPL-2.0-or-later */
  2/* $Id: cosa.h,v 1.6 1999/01/06 14:02:44 kas Exp $ */
  3
  4/*
  5 *  Copyright (C) 1995-1997  Jan "Yenya" Kasprzak <kas@fi.muni.cz>
  6 */
  7
  8#ifndef COSA_H__
  9#define COSA_H__
 10
 11#include <linux/ioctl.h>
 12
 13#ifdef __KERNEL__
 14/* status register - output bits */
 15#define SR_RX_DMA_ENA   0x04    /* receiver DMA enable bit */
 16#define SR_TX_DMA_ENA   0x08    /* transmitter DMA enable bit */
 17#define SR_RST          0x10    /* SRP reset */
 18#define SR_USR_INT_ENA  0x20    /* user interrupt enable bit */
 19#define SR_TX_INT_ENA   0x40    /* transmitter interrupt enable bit */
 20#define SR_RX_INT_ENA   0x80    /* receiver interrupt enable bit */
 21
 22/* status register - input bits */
 23#define SR_USR_RQ       0x20    /* user interrupt request pending */
 24#define SR_TX_RDY       0x40    /* transmitter empty (ready) */
 25#define SR_RX_RDY       0x80    /* receiver data ready */
 26
 27#define SR_UP_REQUEST   0x02    /* request from SRP to transfer data
 28                                   up to PC */
 29#define SR_DOWN_REQUEST 0x01    /* SRP is able to transfer data down
 30                                   from PC to SRP */
 31#define SR_END_OF_TRANSFER      0x03    /* SRP signalize end of
 32                                           transfer (up or down) */
 33
 34#define SR_CMD_FROM_SRP_MASK    0x03    /* mask to get SRP command */
 35
 36/* bits in driver status byte definitions : */
 37#define SR_RDY_RCV      0x01    /* ready to receive packet */
 38#define SR_RDY_SND      0x02    /* ready to send packet */
 39#define SR_CMD_PND      0x04    /* command pending */ /* not currently used */
 40
 41/* ???? */
 42#define SR_PKT_UP       0x01    /* transfer of packet up in progress */
 43#define SR_PKT_DOWN     0x02    /* transfer of packet down in progress */
 44
 45#endif /* __KERNEL__ */
 46
 47#define SR_LOAD_ADDR    0x4400  /* SRP microcode load address */
 48#define SR_START_ADDR   0x4400  /* SRP microcode start address */
 49
 50#define COSA_LOAD_ADDR    0x400  /* SRP microcode load address */
 51#define COSA_MAX_FIRMWARE_SIZE	0x10000
 52
 53/* ioctls */
 54struct cosa_download {
 55	int addr, len;
 56	char __user *code;
 57};
 58
 59/* Reset the device */
 60#define COSAIORSET	_IO('C',0xf0)
 61
 62/* Start microcode at given address */
 63#define COSAIOSTRT	_IOW('C',0xf1, int)
 64
 65/* Read the block from the device memory */
 66#define COSAIORMEM	_IOWR('C',0xf2, struct cosa_download *)
 67	/* actually the struct cosa_download itself; this is to keep
 68	 * the ioctl number same as in 2.4 in order to keep the user-space
 69	 * utils compatible. */
 70
 71/* Write the block to the device memory (i.e. download the microcode) */
 72#define COSAIODOWNLD	_IOW('C',0xf2, struct cosa_download *)
 73	/* actually the struct cosa_download itself; this is to keep
 74	 * the ioctl number same as in 2.4 in order to keep the user-space
 75	 * utils compatible. */
 76
 77/* Read the device type (one of "srp", "cosa", and "cosa8" for now) */
 78#define COSAIORTYPE	_IOR('C',0xf3, char *)
 79
 80/* Read the device identification string */
 81#define COSAIORIDSTR	_IOR('C',0xf4, char *)
 82/* Maximum length of the identification string. */
 83#define COSA_MAX_ID_STRING 128
 84
 85/* Increment/decrement the module usage count :-) */
 86/* #define COSAIOMINC	_IO('C',0xf5) */
 87/* #define COSAIOMDEC	_IO('C',0xf6) */
 88
 89/* Get the total number of cards installed */
 90#define COSAIONRCARDS	_IO('C',0xf7)
 91
 92/* Get the number of channels on this card */
 93#define COSAIONRCHANS	_IO('C',0xf8)
 94
 95/* Set the driver for the bus-master operations */
 96#define COSAIOBMSET	_IOW('C', 0xf9, unsigned short)
 97
 98#define COSA_BM_OFF	0	/* Bus-mastering off - use ISA DMA (default) */
 99#define COSA_BM_ON	1	/* Bus-mastering on - faster but untested */
100
101/* Gets the busmaster status */
102#define COSAIOBMGET	_IO('C', 0xfa)
103
104#endif /* !COSA_H__ */