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#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
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 */
54static int ata_jmicron_chipinit(device_t dev);
55static int ata_jmicron_ch_attach(device_t dev);
56static int ata_jmicron_setmode(device_t dev, int target, int mode);
57
58/*
59 * JMicron chipset support functions
60 */
61static int
62ata_jmicron_probe(device_t dev)
63{
64    struct ata_pci_controller *ctlr = device_get_softc(dev);
65    const struct ata_chip_id *idx;
66    static const struct ata_chip_id ids[] =
67    {{ ATA_JMB360, 0, 1, 0, ATA_SA300, "JMB360" },
68     { ATA_JMB361, 0, 1, 1, ATA_UDMA6, "JMB361" },
69     { ATA_JMB362, 0, 2, 0, ATA_SA300, "JMB362" },
70     { ATA_JMB363, 0, 2, 1, ATA_UDMA6, "JMB363" },
71     { ATA_JMB365, 0, 1, 2, ATA_UDMA6, "JMB365" },
72     { ATA_JMB366, 0, 2, 2, ATA_UDMA6, "JMB366" },
73     { ATA_JMB368, 0, 0, 1, ATA_UDMA6, "JMB368" },
74     { 0, 0, 0, 0, 0, 0}};
75    char buffer[64];
76
77    if (pci_get_vendor(dev) != ATA_JMICRON_ID)
78	return ENXIO;
79
80    if (!(idx = ata_match_chip(dev, ids)))
81        return ENXIO;
82
83    sprintf(buffer, "JMicron %s %s controller",
84	idx->text, ata_mode2str(idx->max_dma));
85    device_set_desc_copy(dev, buffer);
86    ctlr->chip = idx;
87    ctlr->chipinit = ata_jmicron_chipinit;
88    return (BUS_PROBE_DEFAULT);
89}
90
91static int
92ata_jmicron_chipinit(device_t dev)
93{
94    struct ata_pci_controller *ctlr = device_get_softc(dev);
95    device_t child;
96
97    if (ata_setup_interrupt(dev, ata_generic_intr))
98	return ENXIO;
99
100    /* do we have multiple PCI functions ? */
101    if (pci_read_config(dev, 0xdf, 1) & 0x40) {
102	/* are we on the AHCI part ? */
103	if (ata_ahci_chipinit(dev) != ENXIO)
104	    return 0;
105
106	/* otherwise we are on the PATA part */
107	ctlr->ch_attach = ata_jmicron_ch_attach;
108	ctlr->ch_detach = ata_pci_ch_detach;
109	ctlr->reset = ata_generic_reset;
110	ctlr->setmode = ata_jmicron_setmode;
111	ctlr->channels = ctlr->chip->cfg2;
112    }
113    else {
114	/* set controller configuration to a combined setup we support */
115	pci_write_config(dev, 0x40, 0x80c0a131, 4);
116	pci_write_config(dev, 0x80, 0x01200000, 4);
117	/* Create AHCI subdevice if AHCI part present. */
118	if (ctlr->chip->cfg1) {
119	    	child = device_add_child(dev, NULL, -1);
120		if (child != NULL) {
121		    device_set_ivars(child, (void *)(intptr_t)-1);
122		    bus_generic_attach(dev);
123		}
124	}
125	ctlr->ch_attach = ata_jmicron_ch_attach;
126	ctlr->ch_detach = ata_pci_ch_detach;
127	ctlr->reset = ata_generic_reset;
128	ctlr->setmode = ata_jmicron_setmode;
129	ctlr->channels = ctlr->chip->cfg2;
130    }
131    return 0;
132}
133
134static int
135ata_jmicron_ch_attach(device_t dev)
136{
137	struct ata_channel *ch = device_get_softc(dev);
138	int error;
139
140	error = ata_pci_ch_attach(dev);
141	ch->flags |= ATA_CHECKS_CABLE;
142	return (error);
143}
144
145static int
146ata_jmicron_setmode(device_t dev, int target, int mode)
147{
148	struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
149
150	mode = min(mode, ctlr->chip->max_dma);
151	/* check for 80pin cable present */
152	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
153	    pci_read_config(dev, 0x40, 1) & 0x08) {
154		ata_print_cable(dev, "controller");
155		mode = ATA_UDMA2;
156	}
157	/* Nothing to do to setup mode, the controller snoop SET_FEATURE cmd. */
158	return (mode);
159}
160
161ATA_DECLARE_DRIVER(ata_jmicron);
162MODULE_DEPEND(ata_jmicron, ata_ahci, 1, 1, 1);
163