1 /*
2 * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
3 * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
4 * Copyright (c) 2007-2008 Jiri Slaby <jirislaby@gmail.com>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 *
18 */
19
20 /**************\
21 * Capabilities *
22 \**************/
23
24 #include "ath5k.h"
25 #include "reg.h"
26 #include "debug.h"
27 #include "../regd.h"
28
29 /*
30 * Fill the capabilities struct
31 * TODO: Merge this with EEPROM code when we are done with it
32 */
33 int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
34 {
35 struct ath5k_capabilities *caps = &ah->ah_capabilities;
36 u16 ee_header;
37
38 /* Capabilities stored in the EEPROM */
39 ee_header = caps->cap_eeprom.ee_header;
40
41 if (ah->ah_version == AR5K_AR5210) {
42 /*
43 * Set radio capabilities
44 * (The AR5110 only supports the middle 5GHz band)
45 */
46 caps->cap_range.range_5ghz_min = 5120;
47 caps->cap_range.range_5ghz_max = 5430;
48 caps->cap_range.range_2ghz_min = 0;
49 caps->cap_range.range_2ghz_max = 0;
50
51 /* Set supported modes */
52 __set_bit(AR5K_MODE_11A, caps->cap_mode);
53 } else {
54 /*
55 * XXX The transceiver supports frequencies from 4920 to 6100MHz
56 * XXX and from 2312 to 2732MHz. There are problems with the
57 * XXX current ieee80211 implementation because the IEEE
58 * XXX channel mapping does not support negative channel
59 * XXX numbers (2312MHz is channel -19). Of course, this
60 * XXX doesn't matter because these channels are out of the
61 * XXX legal range.
62 */
63
64 /*
65 * Set radio capabilities
66 */
67
68 if (AR5K_EEPROM_HDR_11A(ee_header)) {
69 if (ath_is_49ghz_allowed(caps->cap_eeprom.ee_regdomain))
70 caps->cap_range.range_5ghz_min = 4920;
71 else
72 caps->cap_range.range_5ghz_min = 5005;
73 caps->cap_range.range_5ghz_max = 6100;
74
75 /* Set supported modes */
76 __set_bit(AR5K_MODE_11A, caps->cap_mode);
77 }
78
79 /* Enable 802.11b if a 2GHz capable radio (2111/5112) is
80 * connected */
81 if (AR5K_EEPROM_HDR_11B(ee_header) ||
82 (AR5K_EEPROM_HDR_11G(ee_header) &&
83 ah->ah_version != AR5K_AR5211)) {
84 /* 2312 */
85 caps->cap_range.range_2ghz_min = 2412;
86 caps->cap_range.range_2ghz_max = 2732;
87
88 /* Override 2GHz modes on SoCs that need it
89 * NOTE: cap_needs_2GHz_ovr gets set from
90 * ath_ahb_probe */
91 if (!caps->cap_needs_2GHz_ovr) {
92 if (AR5K_EEPROM_HDR_11B(ee_header))
93 __set_bit(AR5K_MODE_11B,
94 caps->cap_mode);
95
96 if (AR5K_EEPROM_HDR_11G(ee_header) &&
97 ah->ah_version != AR5K_AR5211)
98 __set_bit(AR5K_MODE_11G,
99 caps->cap_mode);
100 }
101 }
102 }
103
104 if ((ah->ah_radio_5ghz_revision & 0xf0) == AR5K_SREV_RAD_2112)
105 __clear_bit(AR5K_MODE_11A, caps->cap_mode);
106
107 /* Set number of supported TX queues */
108 if (ah->ah_version == AR5K_AR5210)
109 caps->cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES_NOQCU;
110 else
111 caps->cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES;
112
113 /* Newer hardware has PHY error counters */
114 if (ah->ah_mac_srev >= AR5K_SREV_AR5213A)
115 caps->cap_has_phyerr_counters = true;
116 else
117 caps->cap_has_phyerr_counters = false;
118
119 /* MACs since AR5212 have MRR support */
120 if (ah->ah_version == AR5K_AR5212)
121 caps->cap_has_mrr_support = true;
122 else
123 caps->cap_has_mrr_support = false;
124
125 return 0;
126 }
127
128 /*
129 * TODO: Following functions should be part of a new function
130 * set_capability
131 */
132
133 int ath5k_hw_enable_pspoll(struct ath5k_hw *ah, u8 *bssid,
134 u16 assoc_id)
135 {
136 if (ah->ah_version == AR5K_AR5210) {
137 AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
138 AR5K_STA_ID1_NO_PSPOLL | AR5K_STA_ID1_DEFAULT_ANTENNA);
139 return 0;
140 }
141
142 return -EIO;
143 }
144
145 int ath5k_hw_disable_pspoll(struct ath5k_hw *ah)
146 {
147 if (ah->ah_version == AR5K_AR5210) {
148 AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1,
149 AR5K_STA_ID1_NO_PSPOLL | AR5K_STA_ID1_DEFAULT_ANTENNA);
150 return 0;
151 }
152
153 return -EIO;
154 }