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 * Lightly modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>.
7 *
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 *
20 */
21
22FILE_LICENCE ( MIT );
23
24/**************\
25* Capabilities *
26\**************/
27
28#include "ath5k.h"
29#include "reg.h"
30#include "base.h"
31
32/*
33 * Fill the capabilities struct
34 * TODO: Merge this with EEPROM code when we are done with it
35 */
36int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
37{
38	u16 ee_header;
39
40	/* Capabilities stored in the EEPROM */
41	ee_header = ah->ah_capabilities.cap_eeprom.ee_header;
42
43	if (ah->ah_version == AR5K_AR5210) {
44		/*
45		 * Set radio capabilities
46		 * (The AR5110 only supports the middle 5GHz band)
47		 */
48		ah->ah_capabilities.cap_range.range_5ghz_min = 5120;
49		ah->ah_capabilities.cap_range.range_5ghz_max = 5430;
50		ah->ah_capabilities.cap_range.range_2ghz_min = 0;
51		ah->ah_capabilities.cap_range.range_2ghz_max = 0;
52
53		/* Set supported modes */
54		ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A;
55		ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A_TURBO;
56	} else {
57		/*
58		 * XXX The tranceiver supports frequencies from 4920 to 6100GHz
59		 * XXX and from 2312 to 2732GHz. There are problems with the
60		 * XXX current ieee80211 implementation because the IEEE
61		 * XXX channel mapping does not support negative channel
62		 * XXX numbers (2312MHz is channel -19). Of course, this
63		 * XXX doesn't matter because these channels are out of range
64		 * XXX but some regulation domains like MKK (Japan) will
65		 * XXX support frequencies somewhere around 4.8GHz.
66		 */
67
68		/*
69		 * Set radio capabilities
70		 */
71
72		if (AR5K_EEPROM_HDR_11A(ee_header)) {
73			/* 4920 */
74			ah->ah_capabilities.cap_range.range_5ghz_min = 5005;
75			ah->ah_capabilities.cap_range.range_5ghz_max = 6100;
76
77			/* Set supported modes */
78			ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A;
79			ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A_TURBO;
80			if (ah->ah_version == AR5K_AR5212)
81				ah->ah_capabilities.cap_mode |=
82					AR5K_MODE_BIT_11G_TURBO;
83		}
84
85		/* Enable  802.11b if a 2GHz capable radio (2111/5112) is
86		 * connected */
87		if (AR5K_EEPROM_HDR_11B(ee_header) ||
88		    (AR5K_EEPROM_HDR_11G(ee_header) &&
89		     ah->ah_version != AR5K_AR5211)) {
90			/* 2312 */
91			ah->ah_capabilities.cap_range.range_2ghz_min = 2412;
92			ah->ah_capabilities.cap_range.range_2ghz_max = 2732;
93
94			if (AR5K_EEPROM_HDR_11B(ee_header))
95				ah->ah_capabilities.cap_mode |=
96					AR5K_MODE_BIT_11B;
97
98			if (AR5K_EEPROM_HDR_11G(ee_header) &&
99			    ah->ah_version != AR5K_AR5211)
100				ah->ah_capabilities.cap_mode |=
101					AR5K_MODE_BIT_11G;
102		}
103	}
104
105	/* GPIO */
106	ah->ah_gpio_npins = AR5K_NUM_GPIO;
107
108	/* Set number of supported TX queues */
109	ah->ah_capabilities.cap_queues.q_tx_num = 1;
110
111	return 0;
112}
113
114/* Main function used by the driver part to check caps */
115int ath5k_hw_get_capability(struct ath5k_hw *ah,
116		enum ath5k_capability_type cap_type,
117		u32 capability __unused, u32 *result)
118{
119	switch (cap_type) {
120	case AR5K_CAP_NUM_TXQUEUES:
121		if (result) {
122			*result = 1;
123			goto yes;
124		}
125	case AR5K_CAP_VEOL:
126		goto yes;
127	case AR5K_CAP_COMPRESSION:
128		if (ah->ah_version == AR5K_AR5212)
129			goto yes;
130		else
131			goto no;
132	case AR5K_CAP_BURST:
133		goto yes;
134	case AR5K_CAP_TPC:
135		goto yes;
136	case AR5K_CAP_BSSIDMASK:
137		if (ah->ah_version == AR5K_AR5212)
138			goto yes;
139		else
140			goto no;
141	case AR5K_CAP_XR:
142		if (ah->ah_version == AR5K_AR5212)
143			goto yes;
144		else
145			goto no;
146	default:
147		goto no;
148	}
149
150no:
151	return -EINVAL;
152yes:
153	return 0;
154}
155