Merge branch 'linus' into core/futexes
[linux-2.6] / drivers / net / wireless / ath5k / caps.c
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 "base.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         u16 ee_header;
36
37         ATH5K_TRACE(ah->ah_sc);
38         /* Capabilities stored in the EEPROM */
39         ee_header = ah->ah_capabilities.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                 ah->ah_capabilities.cap_range.range_5ghz_min = 5120;
47                 ah->ah_capabilities.cap_range.range_5ghz_max = 5430;
48                 ah->ah_capabilities.cap_range.range_2ghz_min = 0;
49                 ah->ah_capabilities.cap_range.range_2ghz_max = 0;
50
51                 /* Set supported modes */
52                 __set_bit(AR5K_MODE_11A, ah->ah_capabilities.cap_mode);
53                 __set_bit(AR5K_MODE_11A_TURBO, ah->ah_capabilities.cap_mode);
54         } else {
55                 /*
56                  * XXX The tranceiver supports frequencies from 4920 to 6100GHz
57                  * XXX and from 2312 to 2732GHz. There are problems with the
58                  * XXX current ieee80211 implementation because the IEEE
59                  * XXX channel mapping does not support negative channel
60                  * XXX numbers (2312MHz is channel -19). Of course, this
61                  * XXX doesn't matter because these channels are out of range
62                  * XXX but some regulation domains like MKK (Japan) will
63                  * XXX support frequencies somewhere around 4.8GHz.
64                  */
65
66                 /*
67                  * Set radio capabilities
68                  */
69
70                 if (AR5K_EEPROM_HDR_11A(ee_header)) {
71                         /* 4920 */
72                         ah->ah_capabilities.cap_range.range_5ghz_min = 5005;
73                         ah->ah_capabilities.cap_range.range_5ghz_max = 6100;
74
75                         /* Set supported modes */
76                         __set_bit(AR5K_MODE_11A,
77                                         ah->ah_capabilities.cap_mode);
78                         __set_bit(AR5K_MODE_11A_TURBO,
79                                         ah->ah_capabilities.cap_mode);
80                         if (ah->ah_version == AR5K_AR5212)
81                                 __set_bit(AR5K_MODE_11G_TURBO,
82                                                 ah->ah_capabilities.cap_mode);
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                         /* 2312 */
90                         ah->ah_capabilities.cap_range.range_2ghz_min = 2412;
91                         ah->ah_capabilities.cap_range.range_2ghz_max = 2732;
92
93                         if (AR5K_EEPROM_HDR_11B(ee_header))
94                                 __set_bit(AR5K_MODE_11B,
95                                                 ah->ah_capabilities.cap_mode);
96
97                         if (AR5K_EEPROM_HDR_11G(ee_header))
98                                 __set_bit(AR5K_MODE_11G,
99                                                 ah->ah_capabilities.cap_mode);
100                 }
101         }
102
103         /* GPIO */
104         ah->ah_gpio_npins = AR5K_NUM_GPIO;
105
106         /* Set number of supported TX queues */
107         if (ah->ah_version == AR5K_AR5210)
108                 ah->ah_capabilities.cap_queues.q_tx_num =
109                         AR5K_NUM_TX_QUEUES_NOQCU;
110         else
111                 ah->ah_capabilities.cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES;
112
113         return 0;
114 }
115
116 /* Main function used by the driver part to check caps */
117 int ath5k_hw_get_capability(struct ath5k_hw *ah,
118                 enum ath5k_capability_type cap_type,
119                 u32 capability, u32 *result)
120 {
121         ATH5K_TRACE(ah->ah_sc);
122
123         switch (cap_type) {
124         case AR5K_CAP_NUM_TXQUEUES:
125                 if (result) {
126                         if (ah->ah_version == AR5K_AR5210)
127                                 *result = AR5K_NUM_TX_QUEUES_NOQCU;
128                         else
129                                 *result = AR5K_NUM_TX_QUEUES;
130                         goto yes;
131                 }
132         case AR5K_CAP_VEOL:
133                 goto yes;
134         case AR5K_CAP_COMPRESSION:
135                 if (ah->ah_version == AR5K_AR5212)
136                         goto yes;
137                 else
138                         goto no;
139         case AR5K_CAP_BURST:
140                 goto yes;
141         case AR5K_CAP_TPC:
142                 goto yes;
143         case AR5K_CAP_BSSIDMASK:
144                 if (ah->ah_version == AR5K_AR5212)
145                         goto yes;
146                 else
147                         goto no;
148         case AR5K_CAP_XR:
149                 if (ah->ah_version == AR5K_AR5212)
150                         goto yes;
151                 else
152                         goto no;
153         default:
154                 goto no;
155         }
156
157 no:
158         return -EINVAL;
159 yes:
160         return 0;
161 }
162
163 /*
164  * TODO: Following functions should be part of a new function
165  * set_capability
166  */
167
168 int ath5k_hw_enable_pspoll(struct ath5k_hw *ah, u8 *bssid,
169                 u16 assoc_id)
170 {
171         ATH5K_TRACE(ah->ah_sc);
172
173         if (ah->ah_version == AR5K_AR5210) {
174                 AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
175                         AR5K_STA_ID1_NO_PSPOLL | AR5K_STA_ID1_DEFAULT_ANTENNA);
176                 return 0;
177         }
178
179         return -EIO;
180 }
181
182 int ath5k_hw_disable_pspoll(struct ath5k_hw *ah)
183 {
184         ATH5K_TRACE(ah->ah_sc);
185
186         if (ah->ah_version == AR5K_AR5210) {
187                 AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1,
188                         AR5K_STA_ID1_NO_PSPOLL | AR5K_STA_ID1_DEFAULT_ANTENNA);
189                 return 0;
190         }
191
192         return -EIO;
193 }