diff options
Diffstat (limited to 'package')
| -rw-r--r-- | package/kernel/mac80211/patches/341-v4.19-brcmfmac-specify-some-features-per-firmware-version.patch | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/341-v4.19-brcmfmac-specify-some-features-per-firmware-version.patch b/package/kernel/mac80211/patches/341-v4.19-brcmfmac-specify-some-features-per-firmware-version.patch new file mode 100644 index 0000000..6ebcdfd --- /dev/null +++ b/package/kernel/mac80211/patches/341-v4.19-brcmfmac-specify-some-features-per-firmware-version.patch @@ -0,0 +1,84 @@ +From 1e591c56a65fbbcd5754a4210a0ef0402d5e5f33 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Mon, 9 Jul 2018 06:55:43 +0200 +Subject: [PATCH] brcmfmac: specify some features per firmware version +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Some features supported by firmware aren't advertised and there is no +way for a driver to query them. This includes e.g. monitor mode details. + +Most firmwares support monitor interface but only the latest ones +/announce/ it with a "monitor" flag in the "cap" iovar. There isn't any +reliable detection method for older firmwares (BRCMF_C_MONITOR was tried +but "it only indicates the core part of the stack supports"). + +Similarly support for tagging monitor frames and building radiotap +headers can't be reliably detected for all firmwares. + +This commit adds table that allows mapping features to firmware version. +It adds mappings for 43602a1 and 4366b1 firmwares from +linux-firmware.git. Both were confirmed to be passing monitor frames. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> +Signed-off-by: Kalle Valo <kvalo@codeaurora.org> +--- + .../wireless/broadcom/brcm80211/brcmfmac/feature.c | 38 ++++++++++++++++++++++ + 1 file changed, 38 insertions(+) + +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c +@@ -93,6 +93,42 @@ static int brcmf_feat_debugfs_read(struc + } + #endif /* DEBUG */ + ++struct brcmf_feat_fwfeat { ++ const char * const fwid; ++ u32 feat_flags; ++}; ++ ++static const struct brcmf_feat_fwfeat brcmf_feat_fwfeat_map[] = { ++ /* brcmfmac43602-pcie.ap.bin from linux-firmware.git commit ea1178515b88 */ ++ { "01-6cb8e269", BIT(BRCMF_FEAT_MONITOR) }, ++ /* brcmfmac4366b-pcie.bin from linux-firmware.git commit 52442afee990 */ ++ { "01-c47a91a4", BIT(BRCMF_FEAT_MONITOR) }, ++}; ++ ++static void brcmf_feat_firmware_overrides(struct brcmf_pub *drv) ++{ ++ const struct brcmf_feat_fwfeat *e; ++ u32 feat_flags = 0; ++ int i; ++ ++ for (i = 0; i < ARRAY_SIZE(brcmf_feat_fwfeat_map); i++) { ++ e = &brcmf_feat_fwfeat_map[i]; ++ if (!strcmp(e->fwid, drv->fwver)) { ++ feat_flags = e->feat_flags; ++ break; ++ } ++ } ++ ++ if (!feat_flags) ++ return; ++ ++ for (i = 0; i < BRCMF_FEAT_LAST; i++) ++ if (feat_flags & BIT(i)) ++ brcmf_dbg(INFO, "enabling firmware feature: %s\n", ++ brcmf_feat_names[i]); ++ drv->feat_flags |= feat_flags; ++} ++ + /** + * brcmf_feat_iovar_int_get() - determine feature through iovar query. + * +@@ -253,6 +289,8 @@ void brcmf_feat_attach(struct brcmf_pub + } + brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_FWSUP, "sup_wpa"); + ++ brcmf_feat_firmware_overrides(drvr); ++ + /* set chip related quirks */ + switch (drvr->bus_if->chip) { + case BRCM_CC_43236_CHIP_ID: |