diff options
| author | Franky Lin <frankyl@broadcom.com> | 2012-04-28 01:56:59 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-05-09 01:53:55 (GMT) |
| commit | ba89bf1961bb991a5c6415bd8408a8cb61ee46dc (patch) | |
| tree | 073ad2e1ae876eb9a37eb20d649bd02d3d0310f1 /drivers/net/wireless/brcm80211/Kconfig | |
| parent | e2f93cc3218853a3c00bd7c9f923bec65aaf9103 (diff) | |
| download | linux-fsl-qoriq-ba89bf1961bb991a5c6415bd8408a8cb61ee46dc.tar.xz | |
brcmfmac: add out of band interrupt support
Some sdio host controllers do not support real in band interrupt.
Software polling mode as a replacement is not fast enough for
high throughput and new features. Also some in band interrupts
do not support host wake up on embedded platform even when they
are real physical interrupts. Therefore out of band (oob)
interrupt mechanism is implemented for these scenarios.
To provide oob irq number and flags used for irq registration in
brcmfmac, a platform device contains irq resource must be
registered in board specific code.
Here is an example of platform device structure:
struct resource brcmf_sdio_res[] = {
{
.start = GPIO_BRCMF_SDIO_OOB_NUM,
.end = GPIO_BRCMF_SDIO_OOB_NUM,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
}
};
struct platform_device brcmf_sdio_device = {
.name = "brcmf_sdio_pd",
.id = -1,
.num_resources = ARRAY_SIZE(brcmf_sdio_res),
.resource = brcmf_sdio_res,
};
Reviewed-by: pieter-paul giesberts <pieterpg@broadcom.com>
Reviewed-by: arend van spriel <arend@broadcom.com>
Signed-off-by: franky lin <frankyl@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/brcm80211/Kconfig')
| -rw-r--r-- | drivers/net/wireless/brcm80211/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/Kconfig b/drivers/net/wireless/brcm80211/Kconfig index c510453..b480088 100644 --- a/drivers/net/wireless/brcm80211/Kconfig +++ b/drivers/net/wireless/brcm80211/Kconfig @@ -36,6 +36,15 @@ config BRCMFMAC_SDIO IEEE802.11n embedded FullMAC WLAN driver. Say Y if you want to use the driver for a SDIO wireless card. +config BRCMFMAC_SDIO_OOB + bool "Out of band interrupt support for SDIO interface chipset" + depends on BRCMFMAC_SDIO + ---help--- + This option enables out-of-band interrupt support for Broadcom + SDIO Wifi chipset using fullmac in order to gain better + performance and deep sleep wake up capability on certain + platforms. Say N if you are unsure. + config BRCMFMAC_USB bool "USB bus interface support for FullMAC driver" depends on USB |