PageRenderTime 20ms CodeModel.GetById 14ms app.highlight 4ms RepoModel.GetById 0ms app.codeStats 0ms

/drivers/net/wireless/ath/ath5k/caps.c

https://bitbucket.org/ndreys/linux-sunxi
C | 186 lines | 109 code | 23 blank | 54 comment | 29 complexity | afd3f203a39bb134137154f5816304bc MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
  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 */
 33int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
 34{
 35	struct ath5k_capabilities *caps = &ah->ah_capabilities;
 36	u16 ee_header;
 37
 38	/* Capabilities stored in the EEPROM */
 39	ee_header = caps->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		caps->cap_range.range_5ghz_min = 5120;
 47		caps->cap_range.range_5ghz_max = 5430;
 48		caps->cap_range.range_2ghz_min = 0;
 49		caps->cap_range.range_2ghz_max = 0;
 50
 51		/* Set supported modes */
 52		__set_bit(AR5K_MODE_11A, caps->cap_mode);
 53	} else {
 54		/*
 55		 * XXX The tranceiver supports frequencies from 4920 to 6100GHz
 56		 * XXX and from 2312 to 2732GHz. There are problems with the
 57		 * XXX current ieee80211 implementation because the IEEE
 58		 * XXX channel mapping does not support negative channel
 59		 * XXX numbers (2312MHz is channel -19). Of course, this
 60		 * XXX doesn't matter because these channels are out of the
 61		 * XXX legal range.
 62		 */
 63
 64		/*
 65		 * Set radio capabilities
 66		 */
 67
 68		if (AR5K_EEPROM_HDR_11A(ee_header)) {
 69			if (ath_is_49ghz_allowed(caps->cap_eeprom.ee_regdomain))
 70				caps->cap_range.range_5ghz_min = 4920;
 71			else
 72				caps->cap_range.range_5ghz_min = 5005;
 73			caps->cap_range.range_5ghz_max = 6100;
 74
 75			/* Set supported modes */
 76			__set_bit(AR5K_MODE_11A, caps->cap_mode);
 77		}
 78
 79		/* Enable  802.11b if a 2GHz capable radio (2111/5112) is
 80		 * connected */
 81		if (AR5K_EEPROM_HDR_11B(ee_header) ||
 82		    (AR5K_EEPROM_HDR_11G(ee_header) &&
 83		     ah->ah_version != AR5K_AR5211)) {
 84			/* 2312 */
 85			caps->cap_range.range_2ghz_min = 2412;
 86			caps->cap_range.range_2ghz_max = 2732;
 87
 88			if (AR5K_EEPROM_HDR_11B(ee_header))
 89				__set_bit(AR5K_MODE_11B, caps->cap_mode);
 90
 91			if (AR5K_EEPROM_HDR_11G(ee_header) &&
 92			    ah->ah_version != AR5K_AR5211)
 93				__set_bit(AR5K_MODE_11G, caps->cap_mode);
 94		}
 95	}
 96
 97	if ((ah->ah_radio_5ghz_revision & 0xf0) == AR5K_SREV_RAD_2112)
 98		__clear_bit(AR5K_MODE_11A, caps->cap_mode);
 99
100	/* Set number of supported TX queues */
101	if (ah->ah_version == AR5K_AR5210)
102		caps->cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES_NOQCU;
103	else
104		caps->cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES;
105
106	/* newer hardware has PHY error counters */
107	if (ah->ah_mac_srev >= AR5K_SREV_AR5213A)
108		caps->cap_has_phyerr_counters = true;
109	else
110		caps->cap_has_phyerr_counters = false;
111
112	return 0;
113}
114
115/* Main function used by the driver part to check caps */
116int ath5k_hw_get_capability(struct ath5k_hw *ah,
117		enum ath5k_capability_type cap_type,
118		u32 capability, u32 *result)
119{
120	switch (cap_type) {
121	case AR5K_CAP_NUM_TXQUEUES:
122		if (result) {
123			if (ah->ah_version == AR5K_AR5210)
124				*result = AR5K_NUM_TX_QUEUES_NOQCU;
125			else
126				*result = AR5K_NUM_TX_QUEUES;
127			goto yes;
128		}
129	case AR5K_CAP_VEOL:
130		goto yes;
131	case AR5K_CAP_COMPRESSION:
132		if (ah->ah_version == AR5K_AR5212)
133			goto yes;
134		else
135			goto no;
136	case AR5K_CAP_BURST:
137		goto yes;
138	case AR5K_CAP_TPC:
139		goto yes;
140	case AR5K_CAP_BSSIDMASK:
141		if (ah->ah_version == AR5K_AR5212)
142			goto yes;
143		else
144			goto no;
145	case AR5K_CAP_XR:
146		if (ah->ah_version == AR5K_AR5212)
147			goto yes;
148		else
149			goto no;
150	default:
151		goto no;
152	}
153
154no:
155	return -EINVAL;
156yes:
157	return 0;
158}
159
160/*
161 * TODO: Following functions should be part of a new function
162 * set_capability
163 */
164
165int ath5k_hw_enable_pspoll(struct ath5k_hw *ah, u8 *bssid,
166		u16 assoc_id)
167{
168	if (ah->ah_version == AR5K_AR5210) {
169		AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
170			AR5K_STA_ID1_NO_PSPOLL | AR5K_STA_ID1_DEFAULT_ANTENNA);
171		return 0;
172	}
173
174	return -EIO;
175}
176
177int ath5k_hw_disable_pspoll(struct ath5k_hw *ah)
178{
179	if (ah->ah_version == AR5K_AR5210) {
180		AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1,
181			AR5K_STA_ID1_NO_PSPOLL | AR5K_STA_ID1_DEFAULT_ANTENNA);
182		return 0;
183	}
184
185	return -EIO;
186}