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authorFelix Fietkau <nbd@openwrt.org>2010-04-15 17:38:33 -0400
committerJohn W. Linville <linville@tuxdriver.com>2010-04-16 15:43:23 -0400
commitf7abf0c1958ab363874cad0d799a1bb43880145a (patch)
treeecceb819d6f50ec1338bf183392a6e7206f33b79 /drivers/net/wireless/ath
parent7152451aa12558ab032f319a119ceb928396b905 (diff)
ath9k_hw: Set the channel on AR9003
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_phy.c47
1 files changed, 46 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 084b0f92afd..f1632abdce5 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -44,7 +44,52 @@
*/
static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
{
- /* TODO */
+ u16 bMode, fracMode = 0, aModeRefSel = 0;
+ u32 freq, channelSel = 0, reg32 = 0;
+ struct chan_centers centers;
+ int loadSynthChannel;
+
+ ath9k_hw_get_channel_centers(ah, chan, &centers);
+ freq = centers.synth_center;
+
+ if (freq < 4800) { /* 2 GHz, fractional mode */
+ channelSel = CHANSEL_2G(freq);
+ /* Set to 2G mode */
+ bMode = 1;
+ } else {
+ channelSel = CHANSEL_5G(freq);
+ /* Doubler is ON, so, divide channelSel by 2. */
+ channelSel >>= 1;
+ /* Set to 5G mode */
+ bMode = 0;
+ }
+
+ /* Enable fractional mode for all channels */
+ fracMode = 1;
+ aModeRefSel = 0;
+ loadSynthChannel = 0;
+
+ reg32 = (bMode << 29);
+ REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);
+
+ /* Enable Long shift Select for Synthesizer */
+ REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4,
+ AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);
+
+ /* Program Synth. setting */
+ reg32 = (channelSel << 2) | (fracMode << 30) |
+ (aModeRefSel << 28) | (loadSynthChannel << 31);
+ REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
+
+ /* Toggle Load Synth channel bit */
+ loadSynthChannel = 1;
+ reg32 = (channelSel << 2) | (fracMode << 30) |
+ (aModeRefSel << 28) | (loadSynthChannel << 31);
+ REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
+
+ ah->curchan = chan;
+ ah->curchan_rad_index = -1;
+
return 0;
}