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 __FBSDID("$FreeBSD$"); 23 24 #include <sys/param.h> 25 #include <sys/lock.h> 26 #include <sys/mutex.h> 27 #include <sys/mbuf.h> 28 #include <sys/kernel.h> 29 #include <sys/socket.h> 30 #include <sys/systm.h> 31 #include <sys/malloc.h> 32 #include <sys/queue.h> 33 #include <sys/taskqueue.h> 34 #include <sys/bus.h> 35 #include <sys/endian.h> 36 37 #include <machine/bus.h> 38 #include <machine/resource.h> 39 #include <sys/rman.h> 40 41 #include <net/if.h> 42 #include <net/ethernet.h> 43 #include <net/if_media.h> 44 45 #include <net80211/ieee80211_var.h> 46 #include <net80211/ieee80211_radiotap.h> 47 48 #include <dev/rtwn/if_rtwnvar.h> 49 50 #include <dev/rtwn/pci/rtwn_pci_var.h> 51 #include <dev/rtwn/pci/rtwn_pci_reg.h> 52 53 54 int 55 rtwn_pci_write_1(struct rtwn_softc *sc, uint16_t addr, uint8_t val) 56 { 57 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc); 58 59 bus_space_write_1(pc->pc_st, pc->pc_sh, addr, val); 60 61 return (0); 62 } 63 64 int 65 rtwn_pci_write_2(struct rtwn_softc *sc, uint16_t addr, uint16_t val) 66 { 67 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc); 68 69 val = htole16(val); 70 bus_space_write_2(pc->pc_st, pc->pc_sh, addr, val); 71 72 return (0); 73 } 74 75 int 76 rtwn_pci_write_4(struct rtwn_softc *sc, uint16_t addr, uint32_t val) 77 { 78 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc); 79 80 val = htole32(val); 81 bus_space_write_4(pc->pc_st, pc->pc_sh, addr, val); 82 83 return (0); 84 } 85 86 uint8_t 87 rtwn_pci_read_1(struct rtwn_softc *sc, uint16_t addr) 88 { 89 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc); 90 91 return (bus_space_read_1(pc->pc_st, pc->pc_sh, addr)); 92 } 93 94 uint16_t 95 rtwn_pci_read_2(struct rtwn_softc *sc, uint16_t addr) 96 { 97 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc); 98 uint16_t val; 99 100 val = bus_space_read_2(pc->pc_st, pc->pc_sh, addr); 101 return le16toh(val); 102 } 103 104 uint32_t 105 rtwn_pci_read_4(struct rtwn_softc *sc, uint16_t addr) 106 { 107 struct rtwn_pci_softc *pc = RTWN_PCI_SOFTC(sc); 108 uint32_t val; 109 110 val = bus_space_read_4(pc->pc_st, pc->pc_sh, addr); 111 return le32toh(val); 112 } 113 114 void 115 rtwn_pci_delay(struct rtwn_softc *sc, int usec) 116 { 117 if (usec < 1000) 118 DELAY(usec); 119 else { 120 (void) mtx_sleep(sc, &sc->sc_mtx, 0, "rtwn_pci", 121 msecs_to_ticks(usec / 1000)); 122 } 123 } 124