xref: /freebsd/sys/dev/ata/chipsets/ata-netcell.c (revision edf8578117e8844e02c0121147f45e4609b30680)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer,
12  *    without modification, immediately at the beginning of the file.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 #include <sys/param.h>
31 #include <sys/module.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/ata.h>
35 #include <sys/bus.h>
36 #include <sys/endian.h>
37 #include <sys/malloc.h>
38 #include <sys/lock.h>
39 #include <sys/mutex.h>
40 #include <sys/sema.h>
41 #include <sys/taskqueue.h>
42 #include <vm/uma.h>
43 #include <machine/stdarg.h>
44 #include <machine/resource.h>
45 #include <machine/bus.h>
46 #include <sys/rman.h>
47 #include <dev/pci/pcivar.h>
48 #include <dev/pci/pcireg.h>
49 #include <dev/ata/ata-all.h>
50 #include <dev/ata/ata-pci.h>
51 #include <ata_if.h>
52 
53 /* local prototypes */
54 static int ata_netcell_chipinit(device_t dev);
55 static int ata_netcell_ch_attach(device_t dev);
56 static int ata_netcell_setmode(device_t dev, int target, int mode);
57 
58 /*
59  * NetCell chipset support functions
60  */
61 static int
62 ata_netcell_probe(device_t dev)
63 {
64     struct ata_pci_controller *ctlr = device_get_softc(dev);
65 
66     if (pci_get_devid(dev) == ATA_NETCELL_SR) {
67 	device_set_desc(dev, "Netcell SyncRAID SR3000/5000 RAID Controller");
68 	ctlr->chipinit = ata_netcell_chipinit;
69 	return (BUS_PROBE_LOW_PRIORITY);
70     }
71     return ENXIO;
72 }
73 
74 static int
75 ata_netcell_chipinit(device_t dev)
76 {
77     struct ata_pci_controller *ctlr = device_get_softc(dev);
78 
79     if (ata_setup_interrupt(dev, ata_generic_intr))
80         return ENXIO;
81 
82     ctlr->ch_attach = ata_netcell_ch_attach;
83     ctlr->setmode = ata_netcell_setmode;
84     return 0;
85 }
86 
87 static int
88 ata_netcell_ch_attach(device_t dev)
89 {
90     struct ata_channel *ch = device_get_softc(dev);
91 
92     /* setup the usual register normal pci style */
93     if (ata_pci_ch_attach(dev))
94 	return ENXIO;
95 
96     /* the NetCell only supports 16 bit PIO transfers */
97     ch->flags |= ATA_USE_16BIT;
98     /* It is a hardware RAID without cable. */
99     ch->flags |= ATA_CHECKS_CABLE;
100     return 0;
101 }
102 
103 static int
104 ata_netcell_setmode(device_t dev, int target, int mode)
105 {
106 
107 	return (min(mode, ATA_UDMA6));
108 }
109 
110 ATA_DECLARE_DRIVER(ata_netcell);
111