iPXE
ath5k_caps.c
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00001 /*
00002  * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
00003  * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
00004  * Copyright (c) 2007-2008 Jiri Slaby <jirislaby@gmail.com>
00005  *
00006  * Lightly modified for iPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>.
00007  *
00008  * Permission to use, copy, modify, and distribute this software for any
00009  * purpose with or without fee is hereby granted, provided that the above
00010  * copyright notice and this permission notice appear in all copies.
00011  *
00012  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
00013  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
00014  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
00015  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
00016  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
00017  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
00018  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
00019  *
00020  */
00021 
00022 FILE_LICENCE ( MIT );
00023 
00024 /**************\
00025 * Capabilities *
00026 \**************/
00027 
00028 #include "ath5k.h"
00029 #include "reg.h"
00030 #include "base.h"
00031 
00032 /*
00033  * Fill the capabilities struct
00034  * TODO: Merge this with EEPROM code when we are done with it
00035  */
00036 int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
00037 {
00038         u16 ee_header;
00039 
00040         /* Capabilities stored in the EEPROM */
00041         ee_header = ah->ah_capabilities.cap_eeprom.ee_header;
00042 
00043         if (ah->ah_version == AR5K_AR5210) {
00044                 /*
00045                  * Set radio capabilities
00046                  * (The AR5110 only supports the middle 5GHz band)
00047                  */
00048                 ah->ah_capabilities.cap_range.range_5ghz_min = 5120;
00049                 ah->ah_capabilities.cap_range.range_5ghz_max = 5430;
00050                 ah->ah_capabilities.cap_range.range_2ghz_min = 0;
00051                 ah->ah_capabilities.cap_range.range_2ghz_max = 0;
00052 
00053                 /* Set supported modes */
00054                 ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A;
00055                 ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A_TURBO;
00056         } else {
00057                 /*
00058                  * XXX The tranceiver supports frequencies from 4920 to 6100GHz
00059                  * XXX and from 2312 to 2732GHz. There are problems with the
00060                  * XXX current ieee80211 implementation because the IEEE
00061                  * XXX channel mapping does not support negative channel
00062                  * XXX numbers (2312MHz is channel -19). Of course, this
00063                  * XXX doesn't matter because these channels are out of range
00064                  * XXX but some regulation domains like MKK (Japan) will
00065                  * XXX support frequencies somewhere around 4.8GHz.
00066                  */
00067 
00068                 /*
00069                  * Set radio capabilities
00070                  */
00071 
00072                 if (AR5K_EEPROM_HDR_11A(ee_header)) {
00073                         /* 4920 */
00074                         ah->ah_capabilities.cap_range.range_5ghz_min = 5005;
00075                         ah->ah_capabilities.cap_range.range_5ghz_max = 6100;
00076 
00077                         /* Set supported modes */
00078                         ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A;
00079                         ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A_TURBO;
00080                         if (ah->ah_version == AR5K_AR5212)
00081                                 ah->ah_capabilities.cap_mode |=
00082                                         AR5K_MODE_BIT_11G_TURBO;
00083                 }
00084 
00085                 /* Enable  802.11b if a 2GHz capable radio (2111/5112) is
00086                  * connected */
00087                 if (AR5K_EEPROM_HDR_11B(ee_header) ||
00088                     (AR5K_EEPROM_HDR_11G(ee_header) &&
00089                      ah->ah_version != AR5K_AR5211)) {
00090                         /* 2312 */
00091                         ah->ah_capabilities.cap_range.range_2ghz_min = 2412;
00092                         ah->ah_capabilities.cap_range.range_2ghz_max = 2732;
00093 
00094                         if (AR5K_EEPROM_HDR_11B(ee_header))
00095                                 ah->ah_capabilities.cap_mode |=
00096                                         AR5K_MODE_BIT_11B;
00097 
00098                         if (AR5K_EEPROM_HDR_11G(ee_header) &&
00099                             ah->ah_version != AR5K_AR5211)
00100                                 ah->ah_capabilities.cap_mode |=
00101                                         AR5K_MODE_BIT_11G;
00102                 }
00103         }
00104 
00105         /* GPIO */
00106         ah->ah_gpio_npins = AR5K_NUM_GPIO;
00107 
00108         /* Set number of supported TX queues */
00109         ah->ah_capabilities.cap_queues.q_tx_num = 1;
00110 
00111         return 0;
00112 }
00113 
00114 /* Main function used by the driver part to check caps */
00115 int ath5k_hw_get_capability(struct ath5k_hw *ah,
00116                 enum ath5k_capability_type cap_type,
00117                 u32 capability __unused, u32 *result)
00118 {
00119         switch (cap_type) {
00120         case AR5K_CAP_NUM_TXQUEUES:
00121                 if (result) {
00122                         *result = 1;
00123                         goto yes;
00124                 }
00125         case AR5K_CAP_VEOL:
00126                 goto yes;
00127         case AR5K_CAP_COMPRESSION:
00128                 if (ah->ah_version == AR5K_AR5212)
00129                         goto yes;
00130                 else
00131                         goto no;
00132         case AR5K_CAP_BURST:
00133                 goto yes;
00134         case AR5K_CAP_TPC:
00135                 goto yes;
00136         case AR5K_CAP_BSSIDMASK:
00137                 if (ah->ah_version == AR5K_AR5212)
00138                         goto yes;
00139                 else
00140                         goto no;
00141         case AR5K_CAP_XR:
00142                 if (ah->ah_version == AR5K_AR5212)
00143                         goto yes;
00144                 else
00145                         goto no;
00146         default:
00147                 goto no;
00148         }
00149 
00150 no:
00151         return -EINVAL;
00152 yes:
00153         return 0;
00154 }