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 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 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 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 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 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 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 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