xref: /freebsd/sys/dev/bwn/if_bwn_phy_n.c (revision 8a6eceff3ce76a4bb9078f3fa710f51ab6671ca3)
1 /*-
2  * Copyright (c) 2016 Adrian Chadd <adrian@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  *    without modification.
11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
13  *    redistribution must be conditioned upon including a substantially
14  *    similar Disclaimer requirement for further binary redistribution.
15  *
16  * NO WARRANTY
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
20  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
22  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27  * THE POSSIBILITY OF SUCH DAMAGES.
28  */
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 /*
34  * This is the top-level N-PHY support for the Broadcom softmac driver.
35  */
36 
37 #include "opt_bwn.h"
38 #include "opt_wlan.h"
39 
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/malloc.h>
44 #include <sys/module.h>
45 #include <sys/endian.h>
46 #include <sys/errno.h>
47 #include <sys/firmware.h>
48 #include <sys/lock.h>
49 #include <sys/mutex.h>
50 #include <machine/bus.h>
51 #include <machine/resource.h>
52 #include <sys/bus.h>
53 #include <sys/rman.h>
54 #include <sys/socket.h>
55 #include <sys/sockio.h>
56 
57 #include <net/ethernet.h>
58 #include <net/if.h>
59 #include <net/if_var.h>
60 #include <net/if_arp.h>
61 #include <net/if_dl.h>
62 #include <net/if_llc.h>
63 #include <net/if_media.h>
64 #include <net/if_types.h>
65 
66 #include <dev/pci/pcivar.h>
67 #include <dev/pci/pcireg.h>
68 #include <dev/siba/siba_ids.h>
69 #include <dev/siba/sibareg.h>
70 #include <dev/siba/sibavar.h>
71 
72 #include <net80211/ieee80211_var.h>
73 #include <net80211/ieee80211_radiotap.h>
74 #include <net80211/ieee80211_regdomain.h>
75 #include <net80211/ieee80211_phy.h>
76 #include <net80211/ieee80211_ratectl.h>
77 
78 #include <dev/bwn/if_bwnreg.h>
79 #include <dev/bwn/if_bwnvar.h>
80 
81 #include <dev/bwn/if_bwn_debug.h>
82 #include <dev/bwn/if_bwn_misc.h>
83 #include <dev/bwn/if_bwn_phy_n.h>
84 
85 #ifdef	BWN_GPL_PHY
86 #include <gnu/dev/bwn/phy_n/if_bwn_phy_n_tables.h>
87 #include <gnu/dev/bwn/phy_n/if_bwn_phy_n_ppr.h>
88 #include <gnu/dev/bwn/phy_n/if_bwn_phy_n_core.h>
89 #endif
90 
91 /*
92  * This module is always compiled into the kernel, regardless of
93  * whether the GPL PHY is enabled.  If the GPL PHY isn't enabled
94  * then it'll just be stubs that will fail to attach.
95  */
96 
97 int
98 bwn_phy_n_attach(struct bwn_mac *mac)
99 {
100 
101 #ifdef	BWN_GPL_PHY
102 	return bwn_nphy_op_allocate(mac);
103 #else
104 	device_printf(mac->mac_sc->sc_dev,
105 	    "%s: BWN_GPL_PHY not in kernel config; "
106 	    "no PHY-N support\n", __func__);
107 	return (ENXIO);
108 #endif
109 }
110 
111 void
112 bwn_phy_n_detach(struct bwn_mac *mac)
113 {
114 
115 #ifdef	BWN_GPL_PHY
116 	return bwn_nphy_op_free(mac);
117 #endif
118 }
119 
120 int
121 bwn_phy_n_prepare_hw(struct bwn_mac *mac)
122 {
123 
124 #ifdef	BWN_GPL_PHY
125 	bwn_nphy_op_prepare_structs(mac);
126 	return (0);
127 #else
128 	return (ENXIO);
129 #endif
130 }
131 
132 void
133 bwn_phy_n_init_pre(struct bwn_mac *mac)
134 {
135 
136 	/* XXX TODO */
137 }
138 
139 int
140 bwn_phy_n_init(struct bwn_mac *mac)
141 {
142 #ifdef	BWN_GPL_PHY
143 	return bwn_nphy_op_init(mac);
144 #else
145 	return (ENXIO);
146 #endif
147 }
148 
149 void
150 bwn_phy_n_exit(struct bwn_mac *mac)
151 {
152 
153 	/* XXX TODO */
154 }
155 
156 uint16_t
157 bwn_phy_n_read(struct bwn_mac *mac, uint16_t reg)
158 {
159 
160 	BWN_WRITE_2(mac, BWN_PHYCTL, reg);
161 	return BWN_READ_2(mac, BWN_PHYDATA);
162 }
163 
164 void
165 bwn_phy_n_write(struct bwn_mac *mac, uint16_t reg, uint16_t value)
166 {
167 
168 	BWN_WRITE_2(mac, BWN_PHYCTL, reg);
169 	BWN_WRITE_2(mac, BWN_PHYDATA, value);
170 }
171 
172 uint16_t
173 bwn_phy_n_rf_read(struct bwn_mac *mac, uint16_t reg)
174 {
175 
176 	/* Register 1 is a 32-bit register. */
177 	if (mac->mac_phy.rev < 7 && reg == 1) {
178 		BWN_ERRPRINTF(mac->mac_sc, "%s: bad reg access\n", __func__);
179 	}
180 
181 	if (mac->mac_phy.rev >= 7)
182 		reg |= 0x200;	 /* radio 0x2057 */
183 	else
184 		reg |= 0x100;
185 
186 	BWN_WRITE_2(mac, BWN_RFCTL, reg);
187 	return BWN_READ_2(mac, BWN_RFDATALO);
188 }
189 
190 void
191 bwn_phy_n_rf_write(struct bwn_mac *mac, uint16_t reg, uint16_t value)
192 {
193 
194 	/* Register 1 is a 32-bit register. */
195 	if (mac->mac_phy.rev < 7 && reg == 1) {
196 		BWN_ERRPRINTF(mac->mac_sc, "%s: bad reg access\n", __func__);
197 	}
198 
199 	BWN_WRITE_2(mac, BWN_RFCTL, reg);
200 	BWN_WRITE_2(mac, BWN_RFDATALO, value);
201 }
202 
203 int
204 bwn_phy_n_hwpctl(struct bwn_mac *mac)
205 {
206 
207 	return (0);
208 }
209 
210 void
211 bwn_phy_n_rf_onoff(struct bwn_mac *mac, int on)
212 {
213 #ifdef	BWN_GPL_PHY
214 	bwn_nphy_op_software_rfkill(mac, on);
215 #endif
216 }
217 
218 void
219 bwn_phy_n_switch_analog(struct bwn_mac *mac, int on)
220 {
221 #ifdef	BWN_GPL_PHY
222 	bwn_nphy_op_switch_analog(mac, on);
223 #endif
224 }
225 
226 int
227 bwn_phy_n_switch_channel(struct bwn_mac *mac, uint32_t newchan)
228 {
229 #ifdef	BWN_GPL_PHY
230 	return bwn_nphy_op_switch_channel(mac, newchan);
231 #else
232 	return (ENXIO);
233 #endif
234 }
235 
236 uint32_t
237 bwn_phy_n_get_default_chan(struct bwn_mac *mac)
238 {
239 
240 	if (bwn_current_band(mac) == BWN_BAND_2G)
241 		return (1);
242 	return (36);
243 }
244 
245 void
246 bwn_phy_n_set_antenna(struct bwn_mac *mac, int antenna)
247 {
248 	/* XXX TODO */
249 }
250 
251 int
252 bwn_phy_n_im(struct bwn_mac *mac, int mode)
253 {
254 	/* XXX TODO */
255 	return (0);
256 }
257 
258 bwn_txpwr_result_t
259 bwn_phy_n_recalc_txpwr(struct bwn_mac *mac, int ignore_tssi)
260 {
261 #ifdef	BWN_GPL_PHY
262 	return bwn_nphy_op_recalc_txpower(mac, ignore_tssi);
263 #else
264 	return (BWN_TXPWR_RES_DONE);
265 #endif
266 }
267 
268 void
269 bwn_phy_n_set_txpwr(struct bwn_mac *mac)
270 {
271 
272 }
273 
274 void
275 bwn_phy_n_task_15s(struct bwn_mac *mac)
276 {
277 
278 }
279 
280 void
281 bwn_phy_n_task_60s(struct bwn_mac *mac)
282 {
283 
284 }
285