mirror of https://gitee.com/openkylin/linux.git
1e5f52de21
On Nokia N900 the wl1251 consumes the most power when the interface is up but not associated to access point (that supports PSM). In terms of battery current consumption, the consumption is ~180 mA higher when the interface is up but not associated and only ~5 mA higher when associated compared to interface down and driver not loaded cases. This patch adds support for the mac80211 idle notifications. Chip is put into idle very much the same way when entering into PSM by utilizing the Extreme Low Power (ELP) mode. I.e. idle is entered by setting necessary conditions in wl1251_ps_set_mode followed by a call to wl1251_ps_elp_sleep. It seems it is just enough the authorize ELP mode followed by CMD_DISCONNECT (thanks to Kalle Valo about the idea to use it). Without disconnect command the chip remains somewhat active and stays consuming ~20 mA. Idle mode is left by same way than PSM. The wl1251_join call is used to revert the CMD_DISCONNECT. Without it association to AP doesn't work when trying second time. With this patch the interface up but not associated case the battery current consumption is less than 1 mA higher compared to interface down case. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Kalle Valo <kvalo@adurom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| acx.c | ||
| acx.h | ||
| boot.c | ||
| boot.h | ||
| cmd.c | ||
| cmd.h | ||
| debugfs.c | ||
| debugfs.h | ||
| event.c | ||
| event.h | ||
| init.c | ||
| init.h | ||
| io.c | ||
| io.h | ||
| main.c | ||
| ps.c | ||
| ps.h | ||
| reg.h | ||
| rx.c | ||
| rx.h | ||
| sdio.c | ||
| spi.c | ||
| spi.h | ||
| tx.c | ||
| tx.h | ||
| wl12xx_80211.h | ||
| wl1251.h | ||