1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/*-
* Copyright (c) 2000 Michael Smith
* Copyright (c) 2003 Paul Saab
* Copyright (c) 2003 Vinod Kashyap
* Copyright (c) 2000 BSDi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Portability and compatibility interfaces.
*/
#ifdef __FreeBSD__
/******************************************************************************
* FreeBSD
*/
#define TWE_SUPPORTED_PLATFORM
#include <sys/param.h>
#include <sys/endian.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/disk.h>
#include <sys/stat.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#define TWE_DRIVER_NAME twe
#define TWED_DRIVER_NAME twed
#define TWE_MALLOC_CLASS M_TWE
/*
* Wrappers for bus-space actions
*/
#define TWE_CONTROL(sc, val) bus_space_write_4((sc)->twe_btag, (sc)->twe_bhandle, 0x0, (u_int32_t)val)
#define TWE_STATUS(sc) (u_int32_t)bus_space_read_4((sc)->twe_btag, (sc)->twe_bhandle, 0x4)
#define TWE_COMMAND_QUEUE(sc, val) bus_space_write_4((sc)->twe_btag, (sc)->twe_bhandle, 0x8, (u_int32_t)val)
#define TWE_RESPONSE_QUEUE(sc) (TWE_Response_Queue)bus_space_read_4((sc)->twe_btag, (sc)->twe_bhandle, 0xc)
/*
* FreeBSD-specific softc elements
*/
#define TWE_PLATFORM_SOFTC \
bus_dmamap_t twe_cmdmap; /* DMA map for command */ \
u_int32_t twe_cmdphys; /* address of command in controller space */ \
device_t twe_dev; /* bus device */ \
dev_t twe_dev_t; /* control device */ \
struct resource *twe_io; /* register interface window */ \
bus_space_handle_t twe_bhandle; /* bus space handle */ \
bus_space_tag_t twe_btag; /* bus space tag */ \
bus_dma_tag_t twe_parent_dmat; /* parent DMA tag */ \
bus_dma_tag_t twe_buffer_dmat; /* data buffer DMA tag */ \
bus_dma_tag_t twe_cmd_dmat; /* command buffer DMA tag */ \
bus_dma_tag_t twe_immediate_dmat; /* command buffer DMA tag */ \
struct resource *twe_irq; /* interrupt */ \
void *twe_intr; /* interrupt handle */ \
struct intr_config_hook twe_ich; /* delayed-startup hook */ \
void *twe_cmd; /* command structures */ \
void *twe_immediate; /* immediate commands */ \
bus_dmamap_t twe_immediate_map; \
struct sysctl_ctx_list sysctl_ctx; \
struct sysctl_oid *sysctl_tree;
/*
* FreeBSD-specific request elements
*/
#define TWE_PLATFORM_REQUEST \
bus_dmamap_t tr_dmamap; /* DMA map for data */ \
u_int32_t tr_dataphys; /* data buffer base address in controller space */
/*
* Output identifying the controller/disk
*/
#define twe_printf(sc, fmt, args...) device_printf(sc->twe_dev, fmt , ##args)
#define twed_printf(twed, fmt, args...) device_printf(twed->twed_dev, fmt , ##args)
#if __FreeBSD_version < 500003
# include <machine/clock.h>
# define INTR_ENTROPY 0
# define FREEBSD_4
# include <sys/buf.h> /* old buf style */
typedef struct buf twe_bio;
typedef struct buf_queue_head twe_bioq;
# define TWE_BIO_QINIT(bq) bufq_init(&bq);
# define TWE_BIO_QINSERT(bq, bp) bufq_insert_tail(&bq, bp)
# define TWE_BIO_QFIRST(bq) bufq_first(&bq)
# define TWE_BIO_QREMOVE(bq, bp) bufq_remove(&bq, bp)
# define TWE_BIO_IS_READ(bp) ((bp)->b_flags & B_READ)
# define TWE_BIO_DATA(bp) (bp)->b_data
# define TWE_BIO_LENGTH(bp) (bp)->b_bcount
# define TWE_BIO_LBA(bp) (bp)->b_pblkno
# define TWE_BIO_SOFTC(bp) (bp)->b_dev->si_drv1
# define TWE_BIO_UNIT(bp) *(int *)((bp)->b_dev->si_drv2)
# define TWE_BIO_SET_ERROR(bp, err) do { (bp)->b_error = err; (bp)->b_flags |= B_ERROR;} while(0)
# define TWE_BIO_HAS_ERROR(bp) ((bp)->b_flags & B_ERROR)
# define TWE_BIO_RESID(bp) (bp)->b_resid
# define TWE_BIO_DONE(bp) biodone(bp)
# define TWE_BIO_STATS_START(bp) devstat_start_transaction(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats)
# define TWE_BIO_STATS_END(bp) devstat_end_transaction_buf(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats, bp)
#else
# include <sys/bio.h>
# include <geom/geom_disk.h>
typedef struct bio twe_bio;
typedef struct bio_queue_head twe_bioq;
# define TWE_BIO_QINIT(bq) bioq_init(&bq);
# define TWE_BIO_QINSERT(bq, bp) bioq_insert_tail(&bq, bp)
# define TWE_BIO_QFIRST(bq) bioq_first(&bq)
# define TWE_BIO_QREMOVE(bq, bp) bioq_remove(&bq, bp)
# define TWE_BIO_IS_READ(bp) ((bp)->bio_cmd == BIO_READ)
# define TWE_BIO_DATA(bp) (bp)->bio_data
# define TWE_BIO_LENGTH(bp) (bp)->bio_bcount
# define TWE_BIO_LBA(bp) (bp)->bio_pblkno
# define TWE_BIO_SOFTC(bp) (bp)->bio_disk->d_drv1
# define TWE_BIO_UNIT(bp) *(int *)(bp->bio_driver1)
# define TWE_BIO_SET_ERROR(bp, err) do { (bp)->bio_error = err; (bp)->bio_flags |= BIO_ERROR;} while(0)
# define TWE_BIO_HAS_ERROR(bp) ((bp)->bio_flags & BIO_ERROR)
# define TWE_BIO_RESID(bp) (bp)->bio_resid
# define TWE_BIO_DONE(bp) biodone(bp)
# define TWE_BIO_STATS_START(bp)
# define TWE_BIO_STATS_END(bp)
#endif
#endif /* FreeBSD */
#ifndef TWE_SUPPORTED_PLATFORM
#error platform not supported
#endif
|
