1 | /* $NetBSD: if_mtd_pci.c,v 1.20 2016/07/07 06:55:41 msaitoh Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2002 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Peter Bex <Peter.Bex@student.kun.nl>. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | /* |
33 | * PCI interface for MTD803 cards |
34 | * Written by Peter Bex (peter.bex@student.kun.nl) |
35 | */ |
36 | |
37 | /* TODO: Check why in IO space, the MII won't work. Memory mapped works */ |
38 | |
39 | #include <sys/cdefs.h> |
40 | __KERNEL_RCSID(0, "$NetBSD: if_mtd_pci.c,v 1.20 2016/07/07 06:55:41 msaitoh Exp $" ); |
41 | |
42 | #include <sys/param.h> |
43 | #include <sys/device.h> |
44 | #include <sys/systm.h> |
45 | #include <sys/socket.h> |
46 | #include <net/if.h> |
47 | #include <net/if_ether.h> |
48 | #include <net/if_media.h> |
49 | #include <sys/bus.h> |
50 | #include <dev/mii/miivar.h> |
51 | #include <dev/ic/mtd803reg.h> |
52 | #include <dev/ic/mtd803var.h> |
53 | #include <dev/pci/pcidevs.h> |
54 | #include <dev/pci/pcireg.h> |
55 | #include <dev/pci/pcivar.h> |
56 | |
57 | #define PCI_IO_MAP_REG PCI_BAR(0) |
58 | #define PCI_MEM_MAP_REG PCI_BAR(1) |
59 | |
60 | struct mtd_pci_device_id { |
61 | pci_vendor_id_t vendor; /* PCI vendor ID */ |
62 | pci_product_id_t product; /* PCI product ID */ |
63 | }; |
64 | |
65 | static struct mtd_pci_device_id mtd_ids[] = { |
66 | { PCI_VENDOR_MYSON, PCI_PRODUCT_MYSON_MTD803 }, |
67 | { 0, 0 } |
68 | }; |
69 | |
70 | static int mtd_pci_match(device_t, cfdata_t, void *); |
71 | static void mtd_pci_attach(device_t, device_t, void *); |
72 | |
73 | CFATTACH_DECL_NEW(mtd_pci, sizeof(struct mtd_softc), mtd_pci_match, |
74 | mtd_pci_attach, NULL, NULL); |
75 | |
76 | static int |
77 | mtd_pci_match(device_t parent, cfdata_t match, void *aux) |
78 | { |
79 | struct pci_attach_args *pa = aux; |
80 | struct mtd_pci_device_id *id; |
81 | |
82 | for (id = mtd_ids; id->vendor != 0; ++id) { |
83 | if (PCI_VENDOR(pa->pa_id) == id->vendor && |
84 | PCI_PRODUCT(pa->pa_id) == id->product) |
85 | return (1); |
86 | } |
87 | return (0); |
88 | } |
89 | |
90 | static void |
91 | mtd_pci_attach(device_t parent, device_t self, void *aux) |
92 | { |
93 | struct pci_attach_args * const pa = aux; |
94 | struct mtd_softc * const sc = device_private(self); |
95 | pci_intr_handle_t ih; |
96 | const char *intrstring = NULL; |
97 | bus_space_tag_t iot, memt; |
98 | bus_space_handle_t ioh, memh; |
99 | int io_valid, mem_valid; |
100 | char intrbuf[PCI_INTRSTR_LEN]; |
101 | |
102 | sc->dev = self; |
103 | pci_aprint_devinfo(pa, NULL); |
104 | |
105 | io_valid = (pci_mapreg_map(pa, PCI_IO_MAP_REG, PCI_MAPREG_TYPE_IO, |
106 | 0, &iot, &ioh, NULL, NULL) == 0); |
107 | mem_valid = (pci_mapreg_map(pa, PCI_MEM_MAP_REG, PCI_MAPREG_TYPE_MEM |
108 | | PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, |
109 | NULL, NULL) == 0); |
110 | |
111 | if (mem_valid) { |
112 | sc->bus_tag = memt; |
113 | sc->bus_handle = memh; |
114 | } else if (io_valid) { |
115 | sc->bus_tag = iot; |
116 | sc->bus_handle = ioh; |
117 | } else { |
118 | aprint_error_dev(sc->dev, |
119 | "could not map memory or i/o space\n" ); |
120 | return; |
121 | } |
122 | sc->dma_tag = pa->pa_dmat; |
123 | |
124 | /* Do generic attach. Seems this must be done before setting IRQ */ |
125 | mtd_config(sc); |
126 | |
127 | if (pci_intr_map(pa, &ih)) { |
128 | aprint_error_dev(sc->dev, "could not map interrupt\n" ); |
129 | return; |
130 | } |
131 | intrstring = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf)); |
132 | |
133 | if (pci_intr_establish(pa->pa_pc, ih, IPL_NET, mtd_irq_h, sc) == NULL) { |
134 | aprint_error_dev(sc->dev, "could not establish interrupt" ); |
135 | if (intrstring != NULL) |
136 | aprint_error(" at %s" , intrstring); |
137 | aprint_error("\n" ); |
138 | return; |
139 | } else { |
140 | aprint_normal_dev(sc->dev, "using %s for interrupt\n" , |
141 | intrstring ? intrstring : "unknown interrupt" ); |
142 | } |
143 | } |
144 | |