diff options
| author | Juuso Oikarinen <juuso.oikarinen@nokia.com> | 2010-03-26 12:53:18 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-03-31 14:39:13 -0400 |
| commit | 259da430b198fc7e6f21e33be3a2d6dd27200953 (patch) | |
| tree | 439f01e2e0a803e8f702f45869ac0ca0310e900b /drivers/net/wireless/wl12xx/wl1271.h | |
| parent | 1b00f2b560028a68cdbc57a0352163afd79822dd (diff) | |
wl1271: Update busyword checking mechanism
After the busy-words, if the firmware did not complete by the end of the
first (fixed) busy-word, a flip of the CS line is required to enable clocking
out the actual read data.
This patch changes the mechanism such that the CS line is flipped after each
busyword.
Also, the busy-word mechanism is finally enabled, and the number of fixed
busywords reduced to the minimum.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271.h')
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1271.h | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271.h b/drivers/net/wireless/wl12xx/wl1271.h index 8f11506f831..c93968092fc 100644 --- a/drivers/net/wireless/wl12xx/wl1271.h +++ b/drivers/net/wireless/wl12xx/wl1271.h @@ -147,14 +147,7 @@ struct wl1271_nvs_file { */ #undef WL1271_80211A_ENABLED -/* - * FIXME: for the wl1271, a busy word count of 1 here will result in a more - * optimal SPI interface. There is some SPI bug however, causing RXS time outs - * with this mode occasionally on boot, so lets have three for now. A value of - * three should make sure, that the chipset will always be ready, though this - * will impact throughput and latencies slightly. - */ -#define WL1271_BUSY_WORD_CNT 3 +#define WL1271_BUSY_WORD_CNT 1 #define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32)) #define WL1271_ELP_HW_STATE_ASLEEP 0 |