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 #include "opt_wlan.h"
29
30 #include <sys/param.h>
31 #include <sys/lock.h>
32 #include <sys/mutex.h>
33 #include <sys/mbuf.h>
34 #include <sys/kernel.h>
35 #include <sys/socket.h>
36 #include <sys/systm.h>
37 #include <sys/malloc.h>
38 #include <sys/queue.h>
39 #include <sys/taskqueue.h>
40 #include <sys/bus.h>
41 #include <sys/endian.h>
42 #include <sys/linker.h>
43
44 #include <net/if.h>
45 #include <net/ethernet.h>
46 #include <net/if_media.h>
47
48 #include <net80211/ieee80211_var.h>
49 #include <net80211/ieee80211_radiotap.h>
50
51 #include <dev/rtwn/if_rtwnreg.h>
52 #include <dev/rtwn/if_rtwnvar.h>
53
54 #include <dev/rtwn/rtl8812a/r12a.h>
55 #include <dev/rtwn/rtl8812a/r12a_reg.h>
56
57 uint32_t
r12a_rf_read(struct rtwn_softc * sc,int chain,uint8_t addr)58 r12a_rf_read(struct rtwn_softc *sc, int chain, uint8_t addr)
59 {
60 uint32_t pi_mode, val;
61
62 /* Turn off CCA (avoids reading the wrong value). */
63 if (addr != R92C_RF_AC)
64 rtwn_bb_setbits(sc, R12A_CCA_ON_SEC, 0, 0x08);
65
66 val = rtwn_bb_read(sc, R12A_HSSI_PARAM1(chain));
67 pi_mode = (val & R12A_HSSI_PARAM1_PI) ? 1 : 0;
68
69 rtwn_bb_setbits(sc, R12A_HSSI_PARAM2,
70 R12A_HSSI_PARAM2_READ_ADDR_MASK, addr);
71
72 val = rtwn_bb_read(sc, pi_mode ? R12A_HSPI_READBACK(chain) :
73 R12A_LSSI_READBACK(chain));
74
75 /* Turn on CCA (when exiting). */
76 if (addr != R92C_RF_AC)
77 rtwn_bb_setbits(sc, R12A_CCA_ON_SEC, 0x08, 0);
78
79 return (MS(val, R92C_LSSI_READBACK_DATA));
80 }
81
82 uint32_t
r12a_c_cut_rf_read(struct rtwn_softc * sc,int chain,uint8_t addr)83 r12a_c_cut_rf_read(struct rtwn_softc *sc, int chain, uint8_t addr)
84 {
85 uint32_t pi_mode, val;
86
87 val = rtwn_bb_read(sc, R12A_HSSI_PARAM1(chain));
88 pi_mode = (val & R12A_HSSI_PARAM1_PI) ? 1 : 0;
89
90 rtwn_bb_setbits(sc, R12A_HSSI_PARAM2,
91 R12A_HSSI_PARAM2_READ_ADDR_MASK, addr);
92 rtwn_delay(sc, 20);
93
94 val = rtwn_bb_read(sc, pi_mode ? R12A_HSPI_READBACK(chain) :
95 R12A_LSSI_READBACK(chain));
96
97 return (MS(val, R92C_LSSI_READBACK_DATA));
98 }
99
100 void
r12a_rf_write(struct rtwn_softc * sc,int chain,uint8_t addr,uint32_t val)101 r12a_rf_write(struct rtwn_softc *sc, int chain, uint8_t addr,
102 uint32_t val)
103 {
104 rtwn_bb_write(sc, R12A_LSSI_PARAM(chain),
105 SM(R88E_LSSI_PARAM_ADDR, addr) |
106 SM(R92C_LSSI_PARAM_DATA, val));
107 }
108