xref: /freebsd/sys/dev/rtwn/rtl8812a/usb/r12au_init.c (revision 792bbaba989533a1fc93823df1720c8c4aaf0442)
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_var.h>
57 
58 #include <dev/rtwn/rtl8812a/usb/r12au.h>
59 #include <dev/rtwn/rtl8812a/usb/r12au_reg.h>
60 
61 
62 void
63 r12au_init_rx_agg(struct rtwn_softc *sc)
64 {
65 	struct r12a_softc *rs = sc->sc_priv;
66 
67 	/* Rx aggregation (USB). */
68 	rtwn_write_2(sc, R92C_RXDMA_AGG_PG_TH,
69 	    rs->ac_usb_dma_size | (rs->ac_usb_dma_time << 8));
70 	rtwn_setbits_1(sc, R92C_TRXDMA_CTRL, 0,
71 	    R92C_TRXDMA_CTRL_RXDMA_AGG_EN);
72 }
73 
74 void
75 r12au_init_burstlen(struct rtwn_softc *sc)
76 {
77 	if (rtwn_read_1(sc, R92C_TYPE_ID + 3) & 0x80)	{
78 		if ((rtwn_read_1(sc, R92C_USB_INFO) & 0x30) == 0) {
79 			/* Set burst packet length to 512 B. */
80 			rtwn_setbits_1(sc, R12A_RXDMA_PRO, 0x20, 0x1e);
81 		} else {
82 			/* Set burst packet length to 64 B. */
83 			rtwn_setbits_1(sc, R12A_RXDMA_PRO, 0x10, 0x2e);
84 		}
85 	} else {	/* USB 3.0 */
86 		/* Set burst packet length to 1 KB. */
87 		rtwn_setbits_1(sc, R12A_RXDMA_PRO, 0x30, 0x0e);
88 
89 		rtwn_setbits_1(sc, 0xf008, 0x18, 0);
90 	}
91 }
92 
93 static void
94 r12au_arfb_init(struct rtwn_softc *sc)
95 {
96 	/* ARFB table 9 for 11ac 5G 2SS. */
97 	rtwn_write_4(sc, R12A_ARFR_5G(0), 0x00000010);
98 	rtwn_write_4(sc, R12A_ARFR_5G(0) + 4, 0xfffff000);
99 
100 	/* ARFB table 10 for 11ac 5G 1SS. */
101 	rtwn_write_4(sc, R12A_ARFR_5G(1), 0x00000010);
102 	rtwn_write_4(sc, R12A_ARFR_5G(1) + 4, 0x003ff000);
103 
104 	/* ARFB table 11 for 11ac 2G 1SS. */
105 	rtwn_write_4(sc, R12A_ARFR_2G(0), 0x00000015);
106 	rtwn_write_4(sc, R12A_ARFR_2G(0) + 4, 0x003ff000);
107 
108 	/* ARFB table 12 for 11ac 2G 2SS. */
109 	rtwn_write_4(sc, R12A_ARFR_2G(1), 0x00000015);
110 	rtwn_write_4(sc, R12A_ARFR_2G(1) + 4, 0xffcff000);
111 }
112 
113 void
114 r12au_init_ampdu_fwhw(struct rtwn_softc *sc)
115 {
116 	rtwn_setbits_1(sc, R92C_FWHW_TXQ_CTRL,
117 	    R92C_FWHW_TXQ_CTRL_AMPDU_RTY_NEW, 0);
118 }
119 
120 void
121 r12au_init_ampdu(struct rtwn_softc *sc)
122 {
123 	struct r12a_softc *rs = sc->sc_priv;
124 
125 	/* Rx interval (USB3). */
126 	rtwn_write_1(sc, 0xf050, 0x01);
127 
128 	/* burst length = 4 */
129 	rtwn_write_2(sc, R92C_RXDMA_STATUS, 0x7400);
130 
131 	rtwn_write_1(sc, R92C_RXDMA_STATUS + 1, 0xf5);
132 
133 	/* Setup AMPDU aggregation. */
134 	rtwn_write_1(sc, R12A_AMPDU_MAX_TIME, rs->ampdu_max_time);
135 	rtwn_write_4(sc, R12A_AMPDU_MAX_LENGTH, 0xffffffff);
136 
137 	/* 80 MHz clock (again?) */
138 	rtwn_write_1(sc, R92C_USTIME_TSF, 0x50);
139 	rtwn_write_1(sc, R92C_USTIME_EDCA, 0x50);
140 
141 	rtwn_r12a_init_burstlen(sc);
142 
143 	/* Enable single packet AMPDU. */
144 	rtwn_setbits_1(sc, R12A_HT_SINGLE_AMPDU, 0,
145 	    R12A_HT_SINGLE_AMPDU_PKT_ENA);
146 
147 	/* 11K packet length for VHT. */
148 	rtwn_write_1(sc, R92C_RX_PKT_LIMIT, 0x18);
149 
150 	rtwn_write_1(sc, R92C_PIFS, 0);
151 
152 	rtwn_write_2(sc, R92C_MAX_AGGR_NUM, 0x1f1f);
153 
154 	rtwn_r12a_init_ampdu_fwhw(sc);
155 
156 	/* Do not reset MAC. */
157 	rtwn_setbits_1(sc, R92C_RSV_CTRL, 0, 0x60);
158 
159 	r12au_arfb_init(sc);
160 }
161 
162 void
163 r12au_post_init(struct rtwn_softc *sc)
164 {
165 
166 	/* Setup RTS BW (equal to data BW). */
167 	rtwn_setbits_1(sc, R92C_QUEUE_CTRL, 0x08, 0);
168 
169 	rtwn_write_1(sc, R12A_EARLY_MODE_CONTROL + 3, 0x01);
170 
171 	/* Reset USB mode switch setting. */
172 	rtwn_write_1(sc, R12A_SDIO_CTRL, 0);
173 	rtwn_write_1(sc, R92C_ACLK_MON, 0);
174 
175 	rtwn_write_1(sc, R92C_USB_HRPWM, 0);
176 
177 #ifndef RTWN_WITHOUT_UCODE
178 	if (sc->sc_flags & RTWN_FW_LOADED) {
179 		if (sc->sc_ratectl_sysctl == RTWN_RATECTL_FW) {
180 			/* TODO: implement */
181 			sc->sc_ratectl = RTWN_RATECTL_NET80211;
182 		} else
183 			sc->sc_ratectl = sc->sc_ratectl_sysctl;
184 	} else
185 #endif
186 		sc->sc_ratectl = RTWN_RATECTL_NONE;
187 }
188