Linux wireless drivers development
 help / color / mirror / Atom feed
From: Nick Kossifidis <mickflemm@gmail.com>
To: ath5k-devel@lists.ath5k.org, linux-wireless@vger.kernel.org
Cc: linville@tuxdriver.com, me@bobcopeland.com, mcgrof@gmail.com,
	jirislaby@gmail.com, nbd@openwrt.org, br1@einfach.org
Subject: [PATCH 27/30] ath5k: Use correct clock when setting ofdm timings
Date: Tue, 23 Nov 2010 21:48:32 +0200	[thread overview]
Message-ID: <20101123194832.GA4303@makis.mantri> (raw)

 * Use correct clock value when setting OFDM timings on
 non-default bwmodes.

 Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
---
 drivers/net/wireless/ath/ath5k/phy.c |   16 ++++++++++++++--
 1 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index 31239ab..95b602b 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -228,8 +228,20 @@ static inline int ath5k_hw_write_ofdm_timings(struct ath5k_hw *ah,
 	 * ALGO: coef = (5 * clock / carrier_freq) / 2
 	 * we scale coef by shifting clock value by 24 for
 	 * better precision since we use integers */
-	/* TODO: Half/quarter rate */
-	clock =  (channel->hw_value & CHANNEL_TURBO) ? 80 : 40;
+	switch (ah->ah_bwmode) {
+	case AR5K_BWMODE_40MHZ:
+		clock = 40 * 2;
+		break;
+	case AR5K_BWMODE_10MHZ:
+		clock = 40 / 2;
+		break;
+	case AR5K_BWMODE_5MHZ:
+		clock = 40 / 4;
+		break;
+	default:
+		clock = 40;
+		break;
+	}
 	coef_scaled = ((5 * (clock << 24)) / 2) / channel->center_freq;
 
 	/* Get exponent

                 reply	other threads:[~2010-11-23 19:48 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20101123194832.GA4303@makis.mantri \
    --to=mickflemm@gmail.com \
    --cc=ath5k-devel@lists.ath5k.org \
    --cc=br1@einfach.org \
    --cc=jirislaby@gmail.com \
    --cc=linux-wireless@vger.kernel.org \
    --cc=linville@tuxdriver.com \
    --cc=mcgrof@gmail.com \
    --cc=me@bobcopeland.com \
    --cc=nbd@openwrt.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox