tweio.h revision 123103
1284990Scy/*- 2284990Scy * Copyright (c) 2000 Michael Smith 3289999Sglebius * Copyright (c) 2003 Paul Saab 4289999Sglebius * Copyright (c) 2003 Vinod Kashyap 5284990Scy * Copyright (c) 2000 BSDi 6284990Scy * All rights reserved. 7293893Sglebius * 8289999Sglebius * Redistribution and use in source and binary forms, with or without 9289999Sglebius * modification, are permitted provided that the following conditions 10289999Sglebius * are met: 11289999Sglebius * 1. Redistributions of source code must retain the above copyright 12289999Sglebius * notice, this list of conditions and the following disclaimer. 13289999Sglebius * 2. Redistributions in binary form must reproduce the above copyright 14284990Scy * notice, this list of conditions and the following disclaimer in the 15294904Sdelphij * documentation and/or other materials provided with the distribution. 16294904Sdelphij * 17294904Sdelphij * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18294904Sdelphij * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19294904Sdelphij * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20294904Sdelphij * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21294904Sdelphij * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22294904Sdelphij * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23294904Sdelphij * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24289999Sglebius * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25293893Sglebius * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26293893Sglebius * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27293893Sglebius * SUCH DAMAGE. 28293893Sglebius * 29293893Sglebius * $FreeBSD: head/sys/dev/twe/tweio.h 123103 2003-12-02 07:57:20Z ps $ 30293893Sglebius */ 31293893Sglebius 32294904Sdelphij 33294904Sdelphij/* 34284990Scy * User-space command 35284990Scy * 36284990Scy * Note that the command's scatter/gather list will be computed by the 37284990Scy * driver, and cannot be filled in by the consumer. 38284990Scy */ 39284990Scystruct twe_usercommand { 40284990Scy TWE_Command tu_command; /* command ready for the controller */ 41284990Scy void *tu_data; /* pointer to data in userspace */ 42284990Scy size_t tu_size; /* userspace data length */ 43284990Scy}; 44284990Scy 45284990Scy#define TWEIO_COMMAND _IOWR('T', 100, struct twe_usercommand) 46289999Sglebius 47294904Sdelphij/* 48294904Sdelphij * Command queue statistics 49284990Scy */ 50284990Scy#define TWEQ_FREE 0 51284990Scy#define TWEQ_BIO 1 52284990Scy#define TWEQ_READY 2 53284990Scy#define TWEQ_BUSY 3 54284990Scy#define TWEQ_COMPLETE 4 55284990Scy#define TWEQ_COUNT 5 /* total number of queues */ 56284990Scy 57284990Scystruct twe_qstat { 58284990Scy u_int32_t q_length; 59284990Scy u_int32_t q_max; 60284990Scy u_int32_t q_min; 61289999Sglebius}; 62289999Sglebius 63294904Sdelphij/* 64294904Sdelphij * Statistics request 65294904Sdelphij */ 66289999Sglebiusunion twe_statrequest { 67284990Scy u_int32_t ts_item; 68284990Scy struct twe_qstat ts_qstat; 69294904Sdelphij}; 70294904Sdelphij 71294904Sdelphij#define TWEIO_STATS _IOWR('T', 101, union twe_statrequest) 72284990Scy 73284990Scy/* 74284990Scy * AEN listen 75284990Scy */ 76284990Scy#define TWEIO_AEN_POLL _IOR('T', 102, u_int16_t) 77284990Scy#define TWEIO_AEN_WAIT _IOR('T', 103, u_int16_t) 78284990Scy 79284990Scy/* 80284990Scy * Controller parameter access 81284990Scy */ 82284990Scystruct twe_paramcommand { 83284990Scy u_int16_t tp_table_id; 84289999Sglebius u_int8_t tp_param_id; 85289999Sglebius void *tp_data; 86294904Sdelphij u_int8_t tp_size; 87289999Sglebius}; 88294904Sdelphij 89289999Sglebius#define TWEIO_SET_PARAM _IOW ('T', 104, struct twe_paramcommand) 90284990Scy#define TWEIO_GET_PARAM _IOW ('T', 105, struct twe_paramcommand) 91284990Scy 92289999Sglebius/* 93289999Sglebius * Request a controller soft-reset 94294904Sdelphij */ 95294904Sdelphij#define TWEIO_RESET _IO ('T', 106) 96289999Sglebius 97289999Sglebius/* 98284990Scy * Request a drive addition or deletion 99284990Scy */ 100294904Sdelphijstruct twe_drivecommand { 101294904Sdelphij int td_unit; 102294904Sdelphij}; 103284990Scy 104284990Scy#define TWEIO_ADD_UNIT _IOW ('U', 107, int) 105284990Scy#define TWEIO_DEL_UNIT _IOW ('U', 108, int) 106284990Scy