1 /* $OpenBSD: if_rtwn.c,v 1.6 2015/08/28 00:03:53 deraadt Exp $ */
2
3 /*-
4 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
5 * Copyright (c) 2015 Stefan Sperling <stsp@openbsd.org>
6 * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
7 *
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 */
20
21 #include <sys/cdefs.h>
22 #include <sys/param.h>
23 #include <sys/lock.h>
24 #include <sys/mutex.h>
25 #include <sys/mbuf.h>
26 #include <sys/kernel.h>
27 #include <sys/socket.h>
28 #include <sys/systm.h>
29 #include <sys/malloc.h>
30 #include <sys/queue.h>
31 #include <sys/taskqueue.h>
32 #include <sys/bus.h>
33 #include <sys/endian.h>
34
35 #include <machine/bus.h>
36 #include <machine/resource.h>
37 #include <sys/rman.h>
38
39 #include <net/if.h>
40 #include <net/ethernet.h>
41 #include <net/if_media.h>
42
43 #include <net80211/ieee80211_var.h>
44 #include <net80211/ieee80211_radiotap.h>
45
46 #include <dev/rtwn/if_rtwnvar.h>
47
48 #include <dev/rtwn/pci/rtwn_pci_var.h>
49 #include <dev/rtwn/pci/rtwn_pci_reg.h>
50
51 int
rtwn_pci_write_1(struct rtwn_softc * sc,uint16_t addr,uint8_t val)52 rtwn_pci_write_1(struct rtwn_softc *sc, uint16_t addr, uint8_t val)
53 {
54 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
55
56 bus_space_write_1(pc->pc_st, pc->pc_sh, addr, val);
57
58 return (0);
59 }
60
61 int
rtwn_pci_write_2(struct rtwn_softc * sc,uint16_t addr,uint16_t val)62 rtwn_pci_write_2(struct rtwn_softc *sc, uint16_t addr, uint16_t val)
63 {
64 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
65
66 val = htole16(val);
67 bus_space_write_2(pc->pc_st, pc->pc_sh, addr, val);
68
69 return (0);
70 }
71
72 int
rtwn_pci_write_4(struct rtwn_softc * sc,uint16_t addr,uint32_t val)73 rtwn_pci_write_4(struct rtwn_softc *sc, uint16_t addr, uint32_t val)
74 {
75 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
76
77 val = htole32(val);
78 bus_space_write_4(pc->pc_st, pc->pc_sh, addr, val);
79
80 return (0);
81 }
82
83 uint8_t
rtwn_pci_read_1(struct rtwn_softc * sc,uint16_t addr)84 rtwn_pci_read_1(struct rtwn_softc *sc, uint16_t addr)
85 {
86 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
87
88 return (bus_space_read_1(pc->pc_st, pc->pc_sh, addr));
89 }
90
91 uint16_t
rtwn_pci_read_2(struct rtwn_softc * sc,uint16_t addr)92 rtwn_pci_read_2(struct rtwn_softc *sc, uint16_t addr)
93 {
94 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
95 uint16_t val;
96
97 val = bus_space_read_2(pc->pc_st, pc->pc_sh, addr);
98 return le16toh(val);
99 }
100
101 uint32_t
rtwn_pci_read_4(struct rtwn_softc * sc,uint16_t addr)102 rtwn_pci_read_4(struct rtwn_softc *sc, uint16_t addr)
103 {
104 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc);
105 uint32_t val;
106
107 val = bus_space_read_4(pc->pc_st, pc->pc_sh, addr);
108 return le32toh(val);
109 }
110
111 void
rtwn_pci_delay(struct rtwn_softc * sc,int usec)112 rtwn_pci_delay(struct rtwn_softc *sc, int usec)
113 {
114 if (usec < 1000)
115 DELAY(usec);
116 else {
117 (void) mtx_sleep(sc, &sc->sc_mtx, 0, "rtwn_pci",
118 msecs_to_ticks(usec / 1000));
119 }
120 }
121