1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/* $NetBSD: if_mtd_pci.c,v 1.22 2021/05/08 00:27:02 thorpej Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Peter Bex <Peter.Bex@student.kun.nl>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* PCI interface for MTD803 cards
* Written by Peter Bex (peter.bex@student.kun.nl)
*/
/* TODO: Check why in IO space, the MII won't work. Memory mapped works */
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_mtd_pci.c,v 1.22 2021/05/08 00:27:02 thorpej Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <sys/bus.h>
#include <dev/mii/miivar.h>
#include <dev/ic/mtd803reg.h>
#include <dev/ic/mtd803var.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#define PCI_IO_MAP_REG PCI_BAR(0)
#define PCI_MEM_MAP_REG PCI_BAR(1)
static const struct device_compatible_entry compat_data[] = {
{ .id = PCI_ID_CODE(PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803) },
PCI_COMPAT_EOL
};
static int mtd_pci_match(device_t, cfdata_t, void *);
static void mtd_pci_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(mtd_pci, sizeof(struct mtd_softc), mtd_pci_match,
mtd_pci_attach, NULL, NULL);
static int
mtd_pci_match(device_t parent, cfdata_t match, void *aux)
{
struct pci_attach_args *pa = aux;
return pci_compatible_match(pa, compat_data);
}
static void
mtd_pci_attach(device_t parent, device_t self, void *aux)
{
struct pci_attach_args * const pa = aux;
struct mtd_softc * const sc = device_private(self);
pci_intr_handle_t ih;
const char *intrstring = NULL;
bus_space_tag_t iot, memt;
bus_space_handle_t ioh, memh;
int io_valid, mem_valid;
char intrbuf[PCI_INTRSTR_LEN];
sc->dev = self;
pci_aprint_devinfo(pa, NULL);
io_valid = (pci_mapreg_map(pa, PCI_IO_MAP_REG, PCI_MAPREG_TYPE_IO,
0, &iot, &ioh, NULL, NULL) == 0);
mem_valid = (pci_mapreg_map(pa, PCI_MEM_MAP_REG, PCI_MAPREG_TYPE_MEM
| PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh,
NULL, NULL) == 0);
if (mem_valid) {
sc->bus_tag = memt;
sc->bus_handle = memh;
} else if (io_valid) {
sc->bus_tag = iot;
sc->bus_handle = ioh;
} else {
aprint_error_dev(sc->dev,
"could not map memory or i/o space\n");
return;
}
sc->dma_tag = pa->pa_dmat;
/* Do generic attach. Seems this must be done before setting IRQ */
mtd_config(sc);
if (pci_intr_map(pa, &ih)) {
aprint_error_dev(sc->dev, "could not map interrupt\n");
return;
}
intrstring = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf));
if (pci_intr_establish_xname(pa->pa_pc, ih, IPL_NET, mtd_irq_h, sc,
device_xname(self)) == NULL) {
aprint_error_dev(sc->dev, "could not establish interrupt");
if (intrstring != NULL)
aprint_error(" at %s", intrstring);
aprint_error("\n");
return;
} else {
aprint_normal_dev(sc->dev, "using %s for interrupt\n",
intrstring ? intrstring : "unknown interrupt");
}
}
|