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/param.h>
30 #include <sys/module.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/ata.h>
34 #include <sys/bus.h>
35 #include <sys/endian.h>
36 #include <sys/malloc.h>
37 #include <sys/lock.h>
38 #include <sys/mutex.h>
39 #include <sys/sema.h>
40 #include <sys/taskqueue.h>
41 #include <vm/uma.h>
42 #include <machine/stdarg.h>
43 #include <machine/resource.h>
44 #include <machine/bus.h>
45 #include <sys/rman.h>
46 #include <dev/pci/pcivar.h>
47 #include <dev/pci/pcireg.h>
48 #include <dev/ata/ata-all.h>
49 #include <dev/ata/ata-pci.h>
50 #include <ata_if.h>
51
52 /* local prototypes */
53 static int ata_jmicron_chipinit(device_t dev);
54 static int ata_jmicron_ch_attach(device_t dev);
55 static int ata_jmicron_setmode(device_t dev, int target, int mode);
56
57 /*
58 * JMicron chipset support functions
59 */
60 static int
ata_jmicron_probe(device_t dev)61 ata_jmicron_probe(device_t dev)
62 {
63 struct ata_pci_controller *ctlr = device_get_softc(dev);
64 const struct ata_chip_id *idx;
65 static const struct ata_chip_id ids[] =
66 {{ ATA_JMB360, 0, 1, 0, ATA_SA300, "JMB360" },
67 { ATA_JMB361, 0, 1, 1, ATA_UDMA6, "JMB361" },
68 { ATA_JMB362, 0, 2, 0, ATA_SA300, "JMB362" },
69 { ATA_JMB363, 0, 2, 1, ATA_UDMA6, "JMB363" },
70 { ATA_JMB365, 0, 1, 2, ATA_UDMA6, "JMB365" },
71 { ATA_JMB366, 0, 2, 2, ATA_UDMA6, "JMB366" },
72 { ATA_JMB368, 0, 0, 1, ATA_UDMA6, "JMB368" },
73 { ATA_JMB368_2, 0, 0, 1, ATA_UDMA6, "JMB368" },
74 { 0, 0, 0, 0, 0, 0}};
75
76 if (pci_get_vendor(dev) != ATA_JMICRON_ID)
77 return ENXIO;
78
79 if (!(idx = ata_match_chip(dev, ids)))
80 return ENXIO;
81
82 device_set_descf(dev, "JMicron %s %s controller",
83 idx->text, ata_mode2str(idx->max_dma));
84 ctlr->chip = idx;
85 ctlr->chipinit = ata_jmicron_chipinit;
86 return (BUS_PROBE_LOW_PRIORITY);
87 }
88
89 static int
ata_jmicron_chipinit(device_t dev)90 ata_jmicron_chipinit(device_t dev)
91 {
92 struct ata_pci_controller *ctlr = device_get_softc(dev);
93 device_t child;
94
95 if (ata_setup_interrupt(dev, ata_generic_intr))
96 return ENXIO;
97
98 /* do we have multiple PCI functions ? */
99 if (pci_read_config(dev, 0xdf, 1) & 0x40) {
100 /* If this was not claimed by AHCI, then we are on the PATA part */
101 ctlr->ch_attach = ata_jmicron_ch_attach;
102 ctlr->ch_detach = ata_pci_ch_detach;
103 ctlr->reset = ata_generic_reset;
104 ctlr->setmode = ata_jmicron_setmode;
105 ctlr->channels = ctlr->chip->cfg2;
106 }
107 else {
108 /* set controller configuration to a combined setup we support */
109 pci_write_config(dev, 0x40, 0x80c0a131, 4);
110 pci_write_config(dev, 0x80, 0x01200000, 4);
111 /* Create AHCI subdevice if AHCI part present. */
112 if (ctlr->chip->cfg1) {
113 child = device_add_child(dev, NULL, DEVICE_UNIT_ANY);
114 if (child != NULL) {
115 device_set_ivars(child, (void *)(intptr_t)-1);
116 bus_generic_attach(dev);
117 }
118 }
119 ctlr->ch_attach = ata_jmicron_ch_attach;
120 ctlr->ch_detach = ata_pci_ch_detach;
121 ctlr->reset = ata_generic_reset;
122 ctlr->setmode = ata_jmicron_setmode;
123 ctlr->channels = ctlr->chip->cfg2;
124 }
125 return 0;
126 }
127
128 static int
ata_jmicron_ch_attach(device_t dev)129 ata_jmicron_ch_attach(device_t dev)
130 {
131 struct ata_channel *ch = device_get_softc(dev);
132 int error;
133
134 error = ata_pci_ch_attach(dev);
135 ch->flags |= ATA_CHECKS_CABLE;
136 return (error);
137 }
138
139 static int
ata_jmicron_setmode(device_t dev,int target,int mode)140 ata_jmicron_setmode(device_t dev, int target, int mode)
141 {
142 device_t parent = device_get_parent(dev);
143 struct ata_pci_controller *ctlr = device_get_softc(parent);
144
145 mode = min(mode, ctlr->chip->max_dma);
146 /* check for 80pin cable present */
147 if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
148 pci_read_config(parent, 0x40, 1) & 0x08) {
149 ata_print_cable(dev, "controller");
150 mode = ATA_UDMA2;
151 }
152 /* Nothing to do to setup mode, the controller snoop SET_FEATURE cmd. */
153 return (mode);
154 }
155
156 ATA_DECLARE_DRIVER(ata_jmicron);
157