iPXE
ath9k_common.c
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1 /*
2  * Copyright (c) 2009-2011 Atheros Communications Inc.
3  *
4  * Modified for iPXE by Scott K Logan <logans@cottsay.net> July 2011
5  * Original from Linux kernel 3.0.1
6  *
7  * Permission to use, copy, modify, and/or distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  */
19 
20 /*
21  * Module for common driver code between ath9k and ath9k_htc
22  */
23 
24 #include "common.h"
25 
26 /*
27  * Update internal channel flags.
28  */
30  struct net80211_channel *chan)
31 {
32  ichan->channel = chan->center_freq;
33  ichan->chan = chan;
34 
35  if (chan->band == NET80211_BAND_2GHZ) {
36  ichan->chanmode = CHANNEL_G;
38  } else {
39  ichan->chanmode = CHANNEL_A;
41  }
42 }
43 
44 /*
45  * Get the internal channel reference.
46  */
48  struct ath_hw *ah)
49 {
50  struct net80211_channel *curchan = dev->channels + dev->channel;
51  struct ath9k_channel *channel;
52  u8 chan_idx;
53 
54  chan_idx = curchan->hw_value;
55  channel = &ah->channels[chan_idx];
57 
58  return channel;
59 }
60 
61 void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,
62  u16 new_txpow, u16 *txpower)
63 {
64  if (cur_txpow != new_txpow) {
65  ath9k_hw_set_txpowerlimit(ah, new_txpow, 0);
66  /* read back in case value is clamped */
67  *txpower = ath9k_hw_regulatory(ah)->power_limit;
68  }
69 }
uint16_t u16
Definition: stdint.h:21
u16 channel
Definition: hw.h:349
u32 chanmode
Definition: hw.h:351
Definition: hw.h:656
u8 channel
The channel currently in use, as an index into the channels array.
Definition: net80211.h:812
void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow, u16 new_txpow, u16 *txpower)
Definition: ath9k_common.c:61
struct net80211_channel * chan
Definition: hw.h:347
u32 channelFlags
Definition: hw.h:350
#define CHANNEL_A
Definition: ath5k.h:638
#define NET80211_BAND_2GHZ
The 2.4 GHz ISM band, unlicensed in most countries.
Definition: net80211.h:45
u16 hw_value
Hardware channel value.
Definition: net80211.h:414
#define CHANNEL_G
Definition: ath5k.h:640
static struct ath_regulatory * ath9k_hw_regulatory(struct ath_hw *ah)
Definition: hw.h:874
int16_t power_limit
Definition: ath.h:143
uint32_t channel
RNDIS channel.
Definition: netvsc.h:14
struct ath9k_channel * ath9k_cmn_get_curchannel(struct net80211_device *dev, struct ath_hw *ah)
Definition: ath9k_common.c:47
u16 center_freq
The center frequency for this channel.
Definition: net80211.h:411
void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan, struct net80211_channel *chan)
Definition: ath9k_common.c:29
u8 band
The band with which this channel is associated.
Definition: net80211.h:388
Structure encapsulating the complete state of an 802.11 device.
Definition: net80211.h:786
An 802.11 RF channel.
Definition: net80211.h:385
#define CHANNEL_OFDM
Definition: ath5k.h:631
void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, int test)
Definition: ath9k_hw.c:1937
#define CHANNEL_5GHZ
Definition: ath5k.h:633
struct net80211_channel channels[NET80211_MAX_CHANNELS]
A list of all possible channels we might use.
Definition: net80211.h:806
uint8_t ah
Definition: registers.h:85
#define CHANNEL_2GHZ
Definition: ath5k.h:632
uint8_t u8
Definition: stdint.h:19