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 */
33int 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
133int 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
145int 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}
155