e3ae0cac00
In the brcm80211 driver we disable the 80211 core when the driver is 'down'. The bcma_core_disable() function exactly does the same as our implementation so exporting this function makes sense. Cc: linux-wireless@vger.kernel.org Cc: Rafal Milecki <zajec5@gmail.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
|
|
* Broadcom specific AMBA
|
|
* Core ops
|
|
*
|
|
* Licensed under the GNU/GPL. See COPYING for details.
|
|
*/
|
|
|
|
#include "bcma_private.h"
|
|
#include <linux/bcma/bcma.h>
|
|
|
|
bool bcma_core_is_enabled(struct bcma_device *core)
|
|
{
|
|
if ((bcma_aread32(core, BCMA_IOCTL) & (BCMA_IOCTL_CLK | BCMA_IOCTL_FGC))
|
|
!= BCMA_IOCTL_CLK)
|
|
return false;
|
|
if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
|
|
return false;
|
|
return true;
|
|
}
|
|
EXPORT_SYMBOL_GPL(bcma_core_is_enabled);
|
|
|
|
void bcma_core_disable(struct bcma_device *core, u32 flags)
|
|
{
|
|
if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
|
|
return;
|
|
|
|
bcma_awrite32(core, BCMA_IOCTL, flags);
|
|
bcma_aread32(core, BCMA_IOCTL);
|
|
udelay(10);
|
|
|
|
bcma_awrite32(core, BCMA_RESET_CTL, BCMA_RESET_CTL_RESET);
|
|
udelay(1);
|
|
}
|
|
EXPORT_SYMBOL_GPL(bcma_core_disable);
|
|
|
|
int bcma_core_enable(struct bcma_device *core, u32 flags)
|
|
{
|
|
bcma_core_disable(core, flags);
|
|
|
|
bcma_awrite32(core, BCMA_IOCTL, (BCMA_IOCTL_CLK | BCMA_IOCTL_FGC | flags));
|
|
bcma_aread32(core, BCMA_IOCTL);
|
|
|
|
bcma_awrite32(core, BCMA_RESET_CTL, 0);
|
|
udelay(1);
|
|
|
|
bcma_awrite32(core, BCMA_IOCTL, (BCMA_IOCTL_CLK | flags));
|
|
bcma_aread32(core, BCMA_IOCTL);
|
|
udelay(1);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(bcma_core_enable);
|