diff options
| author | Juuso Oikarinen <juuso.oikarinen@nokia.com> | 2010-02-22 08:38:38 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-03-09 15:03:04 -0500 |
| commit | ac5e1e39c1eeaaff7e6f03bf7cf7a444b42fbc23 (patch) | |
| tree | 596566fc2f06b58683270687a1a2601755dfe0c5 /drivers/net/wireless/wl12xx/wl1271_main.c | |
| parent | 1e73eb62cec7cf78b7295769b6e51a915518f5a1 (diff) | |
| download | talos-op-linux-ac5e1e39c1eeaaff7e6f03bf7cf7a444b42fbc23.tar.gz talos-op-linux-ac5e1e39c1eeaaff7e6f03bf7cf7a444b42fbc23.zip | |
wl1271: Update TX packet life time handling with higher resolution time
This patch uses a higher precision timer to synchronize with the firmware
clock. Improved precision is needed as on some platforms a jiffy may be up to
tens of milliseconds, and the required precision is closer to TU's.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271_main.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1271_main.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c index 9f7416864053..4c4d22acaeea 100644 --- a/drivers/net/wireless/wl12xx/wl1271_main.c +++ b/drivers/net/wireless/wl12xx/wl1271_main.c @@ -374,6 +374,7 @@ static void wl1271_power_on(struct wl1271 *wl) static void wl1271_fw_status(struct wl1271 *wl, struct wl1271_fw_status *status) { + struct timespec ts; u32 total = 0; int i; @@ -402,8 +403,9 @@ static void wl1271_fw_status(struct wl1271 *wl, ieee80211_queue_work(wl->hw, &wl->tx_work); /* update the host-chipset time offset */ - wl->time_offset = jiffies_to_usecs(jiffies) - - le32_to_cpu(status->fw_localtime); + getnstimeofday(&ts); + wl->time_offset = (timespec_to_ns(&ts) >> 10) - + (s64)le32_to_cpu(status->fw_localtime); } #define WL1271_IRQ_MAX_LOOPS 10 |
