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/if_rtwn_ridx.h> 56 #include <dev/rtwn/if_rtwn_rx.h> 57 58 #include <dev/rtwn/rtl8812a/r12a_var.h> 59 60 #include <dev/rtwn/rtl8821a/r21a.h> 61 #include <dev/rtwn/rtl8821a/r21a_reg.h> 62 63 64 static void 65 r21a_bypass_ext_lna_2ghz(struct rtwn_softc *sc) 66 { 67 rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x00100000, 0); 68 rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x00400000, 0); 69 rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 0, 0x07); 70 rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 0, 0x0700); 71 } 72 73 void 74 r21a_set_band_2ghz(struct rtwn_softc *sc, uint32_t basicrates) 75 { 76 struct r12a_softc *rs = sc->sc_priv; 77 78 /* Enable CCK / OFDM. */ 79 rtwn_bb_setbits(sc, R12A_OFDMCCK_EN, 80 0, R12A_OFDMCCK_EN_CCK | R12A_OFDMCCK_EN_OFDM); 81 82 /* Turn off RF PA and LNA. */ 83 rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 84 R12A_RFE_PINMUX_LNA_MASK, 0x7000); 85 rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 86 R12A_RFE_PINMUX_PA_A_MASK, 0x70); 87 88 if (rs->ext_lna_2g) { 89 /* Turn on 2.4 GHz external LNA. */ 90 rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0, 0x00100000); 91 rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x00400000, 0); 92 rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 0x05, 0x02); 93 rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 0x0500, 0x0200); 94 } else { 95 /* Bypass 2.4 GHz external LNA. */ 96 r21a_bypass_ext_lna_2ghz(sc); 97 } 98 99 /* Select AGC table. */ 100 rtwn_bb_setbits(sc, R12A_TX_SCALE(0), 0x0f00, 0); 101 102 rtwn_bb_setbits(sc, R12A_TX_PATH, 0xf0, 0x10); 103 rtwn_bb_setbits(sc, R12A_CCK_RX_PATH, 0x0f000000, 0x01000000); 104 105 /* Write basic rates. */ 106 rtwn_set_basicrates(sc, basicrates); 107 108 rtwn_write_1(sc, R12A_CCK_CHECK, 0); 109 } 110 111 void 112 r21a_set_band_5ghz(struct rtwn_softc *sc, uint32_t basicrates) 113 { 114 struct r12a_softc *rs = sc->sc_priv; 115 int ntries; 116 117 rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 118 R12A_RFE_PINMUX_LNA_MASK, 0x5000); 119 rtwn_bb_setbits(sc, R12A_RFE_PINMUX(0), 120 R12A_RFE_PINMUX_PA_A_MASK, 0x40); 121 122 if (rs->ext_lna_2g) { 123 /* Bypass 2.4 GHz external LNA. */ 124 r21a_bypass_ext_lna_2ghz(sc); 125 } 126 127 rtwn_write_1(sc, R12A_CCK_CHECK, R12A_CCK_CHECK_5GHZ); 128 129 for (ntries = 0; ntries < 100; ntries++) { 130 if ((rtwn_read_2(sc, R12A_TXPKT_EMPTY) & 0x30) == 0x30) 131 break; 132 133 rtwn_delay(sc, 25); 134 } 135 if (ntries == 100) { 136 device_printf(sc->sc_dev, 137 "%s: TXPKT_EMPTY check failed (%04X)\n", 138 __func__, rtwn_read_2(sc, R12A_TXPKT_EMPTY)); 139 } 140 141 /* Enable OFDM. */ 142 rtwn_bb_setbits(sc, R12A_OFDMCCK_EN, R12A_OFDMCCK_EN_CCK, 143 R12A_OFDMCCK_EN_OFDM); 144 145 /* Select AGC table. */ 146 rtwn_bb_setbits(sc, R12A_TX_SCALE(0), 0x0f00, 0x0100); 147 148 rtwn_bb_setbits(sc, R12A_TX_PATH, 0xf0, 0); 149 rtwn_bb_setbits(sc, R12A_CCK_RX_PATH, 0, 0x0f000000); 150 151 /* Write basic rates. */ 152 rtwn_set_basicrates(sc, basicrates); 153 } 154