1 /*-
2  * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer,
10  *    without modification, immediately at the beginning of the file.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 /* local prototypes */
28 static int ata_netcell_chipinit(device_t dev);
29 static int ata_netcell_allocate(device_t dev);
30 static void ata_netcell_setmode(device_t dev, int mode);
31 
32 /*
33  * NetCell chipset support functions
34  */
35 int
36 ata_netcell_ident(device_t dev)
37 {
38     struct ata_pci_controller *ctlr = device_get_softc(dev);
39 
40     if (pci_get_devid(dev) == ATA_NETCELL_SR) {
41 	device_set_desc(dev, "Netcell SyncRAID SR3000/5000 RAID Controller");
42 	ctlr->chipinit = ata_netcell_chipinit;
43 	return 0;
44     }
45     return ENXIO;
46 }
47 
48 static int
49 ata_netcell_chipinit(device_t dev)
50 {
51     struct ata_pci_controller *ctlr = device_get_softc(dev);
52 
53     if (ata_setup_interrupt(dev, ata_generic_intr))
54 	return ENXIO;
55 
56     ctlr->allocate = ata_netcell_allocate;
57     ctlr->setmode = ata_netcell_setmode;
58     return 0;
59 }
60 
61 static int
62 ata_netcell_allocate(device_t dev)
63 {
64     struct ata_channel *ch = device_get_softc(dev);
65 
66     /* setup the usual register normal pci style */
67     if (ata_pci_allocate(dev))
68 	return ENXIO;
69 
70     /* the NetCell only supports 16 bit PIO transfers */
71     ch->flags |= ATA_USE_16BIT;
72 
73     return 0;
74 }
75 
76 static void
77 ata_netcell_setmode(device_t dev, int mode)
78 {
79     struct ata_device *atadev = device_get_softc(dev);
80 
81     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
82     mode = ata_check_80pin(dev, mode);
83     if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
84 	atadev->mode = mode;
85 }
86