1 /*- 2 * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_wlan.h" 31 32 #include <sys/param.h> 33 #include <sys/lock.h> 34 #include <sys/mutex.h> 35 #include <sys/mbuf.h> 36 #include <sys/kernel.h> 37 #include <sys/socket.h> 38 #include <sys/systm.h> 39 #include <sys/malloc.h> 40 #include <sys/queue.h> 41 #include <sys/taskqueue.h> 42 #include <sys/bus.h> 43 #include <sys/endian.h> 44 #include <sys/linker.h> 45 46 #include <net/if.h> 47 #include <net/ethernet.h> 48 #include <net/if_media.h> 49 50 #include <net80211/ieee80211_var.h> 51 #include <net80211/ieee80211_radiotap.h> 52 53 #include <dev/rtwn/if_rtwnvar.h> 54 55 #include <dev/rtwn/rtl8821a/r21a.h> 56 #include <dev/rtwn/rtl8821a/r21a_reg.h> 57 58 59 #ifndef RTWN_WITHOUT_UCODE 60 void 61 r21a_fw_reset(struct rtwn_softc *sc, int reason) 62 { 63 64 /* Reset MCU IO wrapper. */ 65 rtwn_setbits_1(sc, R92C_RSV_CTRL, 0x02, 0); 66 rtwn_setbits_1(sc, R92C_RSV_CTRL + 1, 0x01, 0); 67 68 rtwn_setbits_1_shift(sc, R92C_SYS_FUNC_EN, 69 R92C_SYS_FUNC_EN_CPUEN, 0, 1); 70 71 /* Enable MCU IO wrapper. */ 72 rtwn_setbits_1(sc, R92C_RSV_CTRL, 0x02, 0); 73 rtwn_setbits_1(sc, R92C_RSV_CTRL + 1, 0, 0x01); 74 75 rtwn_setbits_1_shift(sc, R92C_SYS_FUNC_EN, 76 0, R92C_SYS_FUNC_EN_CPUEN, 1); 77 } 78 #endif 79