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