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* sunxi-5.18: rebase megous patces to v5.18.3 * sunxi-5.18: Add upstream patches - tag: orange-pi-5.18-20220609-1318 * Check applicability to version 5.18.3 * sunxi-5.18: switch to version 5.18.3
55 lines
1.9 KiB
Diff
55 lines
1.9 KiB
Diff
From 6b167728185e143a1fe91c4967e702f8aa1b43f7 Mon Sep 17 00:00:00 2001
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From: Vasily Khoruzhick <anarsoul@gmail.com>
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Date: Wed, 31 Oct 2018 19:40:18 -0700
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Subject: [PATCH 190/515] Bluetooth: Add new quirk for broken local ext
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features max_page
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Some adapters (e.g. RTL8723CS) advertise that they have more than
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2 pages for local ext features, but they don't support any features
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declared in these pages. RTL8723CS reports max_page = 2 and declares
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support for sync train and secure connection, but it responds with
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either garbage or with error in status on corresponding commands.
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Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
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---
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include/net/bluetooth/hci.h | 7 +++++++
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net/bluetooth/hci_event.c | 4 +++-
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2 files changed, 10 insertions(+), 1 deletion(-)
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diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
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index 69ef31cea582..af26e8051905 100644
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--- a/include/net/bluetooth/hci.h
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+++ b/include/net/bluetooth/hci.h
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@@ -266,6 +266,13 @@ enum {
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*/
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HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL,
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+ /* When this quirk is set, max_page for local extended features
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+ * is set to 1, even if controller reports higher number. Some
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+ * controllers (e.g. RTL8723CS) report more pages, but they
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+ * don't actually support features declared there.
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+ */
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+ HCI_QUIRK_BROKEN_LOCAL_EXT_FTR_MAX_PAGE,
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+
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/*
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* When this quirk is set, disables the use of
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* HCI_OP_ENHANCED_SETUP_SYNC_CONN command to setup SCO connections.
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diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
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index 66451661283c..52b358c33344 100644
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--- a/net/bluetooth/hci_event.c
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+++ b/net/bluetooth/hci_event.c
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@@ -837,7 +837,9 @@ static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data,
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if (rp->status)
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return rp->status;
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- if (hdev->max_page < rp->max_page)
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+ if (!test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FTR_MAX_PAGE,
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+ &hdev->quirks) &&
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+ hdev->max_page < rp->max_page)
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hdev->max_page = rp->max_page;
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if (rp->page < HCI_MAX_PAGES)
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--
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2.35.3
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