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/if_rtwn_debug.h>
55
56 #include <dev/rtwn/rtl8812a/r12a.h>
57
58 #include <dev/rtwn/rtl8821a/r21a.h>
59 #include <dev/rtwn/rtl8821a/r21a_reg.h>
60 #include <dev/rtwn/rtl8821a/r21a_priv.h>
61
62 #ifndef RTWN_WITHOUT_UCODE
63 int
r21a_iq_calib_fw_supported(struct rtwn_softc * sc)64 r21a_iq_calib_fw_supported(struct rtwn_softc *sc)
65 {
66 if (sc->fwver == 0x16)
67 return (1);
68
69 return (0);
70 }
71 #endif
72
73 void
r21a_iq_calib_sw(struct rtwn_softc * sc)74 r21a_iq_calib_sw(struct rtwn_softc *sc)
75 {
76 #define R21A_MAX_NRXCHAINS 2
77 uint32_t saved_bb_vals[nitems(r21a_iq_bb_regs)];
78 uint32_t saved_afe_vals[nitems(r21a_iq_afe_regs)];
79 uint32_t saved_rf_vals[nitems(r21a_iq_rf_regs) * R21A_MAX_NRXCHAINS];
80
81 KASSERT(sc->nrxchains <= R21A_MAX_NRXCHAINS,
82 ("nrxchains > %d (%d)\n", R21A_MAX_NRXCHAINS, sc->nrxchains));
83
84 RTWN_DPRINTF(sc, RTWN_DEBUG_CALIB, "%s: SW IQ calibration: TODO\n",
85 __func__);
86
87 /* Save registers. */
88 r12a_save_bb_afe_vals(sc, saved_bb_vals, r21a_iq_bb_regs,
89 nitems(r21a_iq_bb_regs));
90 r12a_save_bb_afe_vals(sc, saved_afe_vals, r21a_iq_afe_regs,
91 nitems(r21a_iq_afe_regs));
92 r12a_save_rf_vals(sc, saved_rf_vals, r21a_iq_rf_regs,
93 nitems(r21a_iq_rf_regs));
94
95 #ifdef RTWN_TODO
96 /* Configure MAC. */
97 r12a_iq_config_mac(sc);
98 r21a_iq_tx(sc);
99 #endif
100
101 /* Restore registers. */
102 r12a_restore_rf_vals(sc, saved_rf_vals, r21a_iq_rf_regs,
103 nitems(r21a_iq_rf_regs));
104 r12a_restore_bb_afe_vals(sc, saved_afe_vals, r21a_iq_afe_regs,
105 nitems(r21a_iq_afe_regs));
106
107 /* Select page C1. */
108 rtwn_bb_setbits(sc, R12A_TXAGC_TABLE_SELECT, 0, 0x80000000);
109
110 rtwn_bb_write(sc, R12A_SLEEP_NAV(0), 0);
111 rtwn_bb_write(sc, R12A_PMPD(0), 0);
112 rtwn_bb_write(sc, 0xc88, 0);
113 rtwn_bb_write(sc, 0xc8c, 0x3c000000);
114 rtwn_bb_write(sc, 0xc90, 0x80);
115 rtwn_bb_write(sc, 0xc94, 0);
116 rtwn_bb_write(sc, 0xcc4, 0x20040000);
117 rtwn_bb_write(sc, 0xcc8, 0x20000000);
118 rtwn_bb_write(sc, 0xcb8, 0);
119
120 r12a_restore_bb_afe_vals(sc, saved_bb_vals, r21a_iq_bb_regs,
121 nitems(r21a_iq_bb_regs));
122 #undef R21A_MAX_NRXCHAINS
123 }
124