xref: /freebsd/sys/dev/ata/chipsets/ata-netcell.c (revision 3c4ba5f55438f7afd4f4b0b56f88f2bb505fd6a6)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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 __FBSDID("$FreeBSD$");
31 
32 #include <sys/param.h>
33 #include <sys/module.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/ata.h>
37 #include <sys/bus.h>
38 #include <sys/endian.h>
39 #include <sys/malloc.h>
40 #include <sys/lock.h>
41 #include <sys/mutex.h>
42 #include <sys/sema.h>
43 #include <sys/taskqueue.h>
44 #include <vm/uma.h>
45 #include <machine/stdarg.h>
46 #include <machine/resource.h>
47 #include <machine/bus.h>
48 #include <sys/rman.h>
49 #include <dev/pci/pcivar.h>
50 #include <dev/pci/pcireg.h>
51 #include <dev/ata/ata-all.h>
52 #include <dev/ata/ata-pci.h>
53 #include <ata_if.h>
54 
55 /* local prototypes */
56 static int ata_netcell_chipinit(device_t dev);
57 static int ata_netcell_ch_attach(device_t dev);
58 static int ata_netcell_setmode(device_t dev, int target, int mode);
59 
60 /*
61  * NetCell chipset support functions
62  */
63 static int
64 ata_netcell_probe(device_t dev)
65 {
66     struct ata_pci_controller *ctlr = device_get_softc(dev);
67 
68     if (pci_get_devid(dev) == ATA_NETCELL_SR) {
69 	device_set_desc(dev, "Netcell SyncRAID SR3000/5000 RAID Controller");
70 	ctlr->chipinit = ata_netcell_chipinit;
71 	return (BUS_PROBE_LOW_PRIORITY);
72     }
73     return ENXIO;
74 }
75 
76 static int
77 ata_netcell_chipinit(device_t dev)
78 {
79     struct ata_pci_controller *ctlr = device_get_softc(dev);
80 
81     if (ata_setup_interrupt(dev, ata_generic_intr))
82         return ENXIO;
83 
84     ctlr->ch_attach = ata_netcell_ch_attach;
85     ctlr->setmode = ata_netcell_setmode;
86     return 0;
87 }
88 
89 static int
90 ata_netcell_ch_attach(device_t dev)
91 {
92     struct ata_channel *ch = device_get_softc(dev);
93 
94     /* setup the usual register normal pci style */
95     if (ata_pci_ch_attach(dev))
96 	return ENXIO;
97 
98     /* the NetCell only supports 16 bit PIO transfers */
99     ch->flags |= ATA_USE_16BIT;
100     /* It is a hardware RAID without cable. */
101     ch->flags |= ATA_CHECKS_CABLE;
102     return 0;
103 }
104 
105 static int
106 ata_netcell_setmode(device_t dev, int target, int mode)
107 {
108 
109 	return (min(mode, ATA_UDMA6));
110 }
111 
112 ATA_DECLARE_DRIVER(ata_netcell);
113