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_rtwnreg.h>
54#include <dev/rtwn/if_rtwnvar.h>
55
56#include <dev/rtwn/rtl8812a/r12a.h>
57#include <dev/rtwn/rtl8812a/r12a_reg.h>
58
59uint32_t
60r12a_rf_read(struct rtwn_softc *sc, int chain, uint8_t addr)
61{
62	uint32_t pi_mode, val;
63
64	/* Turn off CCA (avoids reading the wrong value). */
65	if (addr != R92C_RF_AC)
66		rtwn_bb_setbits(sc, R12A_CCA_ON_SEC, 0, 0x08);
67
68	val = rtwn_bb_read(sc, R12A_HSSI_PARAM1(chain));
69	pi_mode = (val & R12A_HSSI_PARAM1_PI) ? 1 : 0;
70
71	rtwn_bb_setbits(sc, R12A_HSSI_PARAM2,
72	    R12A_HSSI_PARAM2_READ_ADDR_MASK, addr);
73
74	val = rtwn_bb_read(sc, pi_mode ? R12A_HSPI_READBACK(chain) :
75	    R12A_LSSI_READBACK(chain));
76
77	/* Turn on CCA (when exiting). */
78	if (addr != R92C_RF_AC)
79		rtwn_bb_setbits(sc, R12A_CCA_ON_SEC, 0x08, 0);
80
81	return (MS(val, R92C_LSSI_READBACK_DATA));
82}
83
84uint32_t
85r12a_c_cut_rf_read(struct rtwn_softc *sc, int chain, uint8_t addr)
86{
87	uint32_t pi_mode, val;
88
89	val = rtwn_bb_read(sc, R12A_HSSI_PARAM1(chain));
90	pi_mode = (val & R12A_HSSI_PARAM1_PI) ? 1 : 0;
91
92	rtwn_bb_setbits(sc, R12A_HSSI_PARAM2,
93	    R12A_HSSI_PARAM2_READ_ADDR_MASK, addr);
94	rtwn_delay(sc, 20);
95
96	val = rtwn_bb_read(sc, pi_mode ? R12A_HSPI_READBACK(chain) :
97	    R12A_LSSI_READBACK(chain));
98
99	return (MS(val, R92C_LSSI_READBACK_DATA));
100}
101
102void
103r12a_rf_write(struct rtwn_softc *sc, int chain, uint8_t addr,
104    uint32_t val)
105{
106	rtwn_bb_write(sc, R12A_LSSI_PARAM(chain),
107	    SM(R88E_LSSI_PARAM_ADDR, addr) |
108	    SM(R92C_LSSI_PARAM_DATA, val));
109}
110