diff options
| author | Arend van Spriel <arend@broadcom.com> | 2016-01-02 11:41:42 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2016-01-07 12:21:16 +0300 |
| commit | 8ba83d4daab9b71dd27da3765f34d1ffa1fee2ec (patch) | |
| tree | 139b18763a53013ea2284f465989d44b75dba775 /drivers/net/wireless/broadcom | |
| parent | 7d34b05605676736c6695ccdcec547055d07468f (diff) | |
| download | linux-8ba83d4daab9b71dd27da3765f34d1ffa1fee2ec.tar.xz | |
brcmfmac: introduce module parameter to force successful probe
The module parameter can be used to ensure the probe succeeds thus
claiming the device and allowing post-mortem debugging in case of
firmware crash. It is only available when select CONFIG_BRCMDBG.
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/broadcom')
3 files changed, 25 insertions, 1 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c index bb9e2b3f5012..4265b50faa98 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c @@ -67,6 +67,13 @@ static int brcmf_roamoff; module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR); MODULE_PARM_DESC(roamoff, "Do not use internal roaming engine"); +#ifdef DEBUG +/* always succeed brcmf_bus_start() */ +static int brcmf_ignore_probe_fail; +module_param_named(ignore_probe_fail, brcmf_ignore_probe_fail, int, 0); +MODULE_PARM_DESC(ignore_probe_fail, "always succeed probe for debugging"); +#endif + struct brcmf_mp_global_t brcmf_mp_global; int brcmf_c_preinit_dcmds(struct brcmf_if *ifp) @@ -232,7 +239,9 @@ int brcmf_mp_device_attach(struct brcmf_pub *drvr) drvr->settings->feature_disable = brcmf_feature_disable; drvr->settings->fcmode = brcmf_fcmode; drvr->settings->roamoff = !!brcmf_roamoff; - +#ifdef DEBUG + drvr->settings->ignore_probe_fail = !!brcmf_ignore_probe_fail; +#endif return 0; } diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h index abe3764669a6..3b0a63b98e99 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h @@ -55,11 +55,24 @@ struct brcmf_mp_device { int feature_disable; int fcmode; bool roamoff; + bool ignore_probe_fail; }; void brcmf_mp_attach(void); int brcmf_mp_device_attach(struct brcmf_pub *drvr); void brcmf_mp_device_detach(struct brcmf_pub *drvr); +#ifdef DEBUG +static inline bool brcmf_ignoring_probe_fail(struct brcmf_pub *drvr) +{ + return drvr->settings->ignore_probe_fail; +} +#else +static inline bool brcmf_ignoring_probe_fail(struct brcmf_pub *drvr) +{ + return false; +} +#endif + /* Sets dongle media info (drv_version, mac address). */ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c index 3fa7bc5ce4b7..7c75b1acdf00 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c @@ -1183,6 +1183,8 @@ fail: brcmf_net_detach(p2p_ifp->ndev); drvr->iflist[0] = NULL; drvr->iflist[1] = NULL; + if (brcmf_ignoring_probe_fail(drvr)) + ret = 0; return ret; } return 0; |