Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[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                      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                                 __set_bit(AR5K_MODE_11B,
96                                                 ah->ah_capabilities.cap_mode);
97
98                         if (AR5K_EEPROM_HDR_11G(ee_header) &&
99                             ah->ah_version != AR5K_AR5211)
100                                 __set_bit(AR5K_MODE_11G,
101                                                 ah->ah_capabilities.cap_mode);
102                 }
103         }
104
105         /* GPIO */
106         ah->ah_gpio_npins = AR5K_NUM_GPIO;
107
108         /* Set number of supported TX queues */
109         if (ah->ah_version == AR5K_AR5210)
110                 ah->ah_capabilities.cap_queues.q_tx_num =
111                         AR5K_NUM_TX_QUEUES_NOQCU;
112         else
113                 ah->ah_capabilities.cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES;
114
115         return 0;
116 }
117
118 /* Main function used by the driver part to check caps */
119 int ath5k_hw_get_capability(struct ath5k_hw *ah,
120                 enum ath5k_capability_type cap_type,
121                 u32 capability, u32 *result)
122 {
123         ATH5K_TRACE(ah->ah_sc);
124
125         switch (cap_type) {
126         case AR5K_CAP_NUM_TXQUEUES:
127                 if (result) {
128                         if (ah->ah_version == AR5K_AR5210)
129                                 *result = AR5K_NUM_TX_QUEUES_NOQCU;
130                         else
131                                 *result = AR5K_NUM_TX_QUEUES;
132                         goto yes;
133                 }
134         case AR5K_CAP_VEOL:
135                 goto yes;
136         case AR5K_CAP_COMPRESSION:
137                 if (ah->ah_version == AR5K_AR5212)
138                         goto yes;
139                 else
140                         goto no;
141         case AR5K_CAP_BURST:
142                 goto yes;
143         case AR5K_CAP_TPC:
144                 goto yes;
145         case AR5K_CAP_BSSIDMASK:
146                 if (ah->ah_version == AR5K_AR5212)
147                         goto yes;
148                 else
149                         goto no;
150         case AR5K_CAP_XR:
151                 if (ah->ah_version == AR5K_AR5212)
152                         goto yes;
153                 else
154                         goto no;
155         default:
156                 goto no;
157         }
158
159 no:
160         return -EINVAL;
161 yes:
162         return 0;
163 }
164
165 /*
166  * TODO: Following functions should be part of a new function
167  * set_capability
168  */
169
170 int ath5k_hw_enable_pspoll(struct ath5k_hw *ah, u8 *bssid,
171                 u16 assoc_id)
172 {
173         ATH5K_TRACE(ah->ah_sc);
174
175         if (ah->ah_version == AR5K_AR5210) {
176                 AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
177                         AR5K_STA_ID1_NO_PSPOLL | AR5K_STA_ID1_DEFAULT_ANTENNA);
178                 return 0;
179         }
180
181         return -EIO;
182 }
183
184 int ath5k_hw_disable_pspoll(struct ath5k_hw *ah)
185 {
186         ATH5K_TRACE(ah->ah_sc);
187
188         if (ah->ah_version == AR5K_AR5210) {
189                 AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1,
190                         AR5K_STA_ID1_NO_PSPOLL | AR5K_STA_ID1_DEFAULT_ANTENNA);
191                 return 0;
192         }
193
194         return -EIO;
195 }