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
22 FILE_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 */
ath5k_hw_set_capabilities(struct ath5k_hw * ah)36 int 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 */
ath5k_hw_get_capability(struct ath5k_hw * ah,enum ath5k_capability_type cap_type,u32 capability __unused,u32 * result)115 int 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
150 no:
151 return -EINVAL;
152 yes:
153 return 0;
154 }
155