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__ */ 105