From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- net/bluetooth/aosp.c | 210 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 210 insertions(+) create mode 100644 net/bluetooth/aosp.c (limited to 'net/bluetooth/aosp.c') diff --git a/net/bluetooth/aosp.c b/net/bluetooth/aosp.c new file mode 100644 index 000000000..59025771a --- /dev/null +++ b/net/bluetooth/aosp.c @@ -0,0 +1,210 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2021 Intel Corporation + */ + +#include +#include + +#include "aosp.h" + +/* Command complete parameters of LE_Get_Vendor_Capabilities_Command + * The parameters grow over time. The base version that declares the + * version_supported field is v0.95. Refer to + * https://cs.android.com/android/platform/superproject/+/master:system/ + * bt/gd/hci/controller.cc;l=452?q=le_get_vendor_capabilities_handler + */ +struct aosp_rp_le_get_vendor_capa { + /* v0.95: 15 octets */ + __u8 status; + __u8 max_advt_instances; + __u8 offloaded_resolution_of_private_address; + __le16 total_scan_results_storage; + __u8 max_irk_list_sz; + __u8 filtering_support; + __u8 max_filter; + __u8 activity_energy_info_support; + __le16 version_supported; + __le16 total_num_of_advt_tracked; + __u8 extended_scan_support; + __u8 debug_logging_supported; + /* v0.96: 16 octets */ + __u8 le_address_generation_offloading_support; + /* v0.98: 21 octets */ + __le32 a2dp_source_offload_capability_mask; + __u8 bluetooth_quality_report_support; + /* v1.00: 25 octets */ + __le32 dynamic_audio_buffer_support; +} __packed; + +#define VENDOR_CAPA_BASE_SIZE 15 +#define VENDOR_CAPA_0_98_SIZE 21 + +void aosp_do_open(struct hci_dev *hdev) +{ + struct sk_buff *skb; + struct aosp_rp_le_get_vendor_capa *rp; + u16 version_supported; + + if (!hdev->aosp_capable) + return; + + bt_dev_dbg(hdev, "Initialize AOSP extension"); + + /* LE Get Vendor Capabilities Command */ + skb = __hci_cmd_sync(hdev, hci_opcode_pack(0x3f, 0x153), 0, NULL, + HCI_CMD_TIMEOUT); + if (IS_ERR_OR_NULL(skb)) { + if (!skb) + skb = ERR_PTR(-EIO); + + bt_dev_err(hdev, "AOSP get vendor capabilities (%ld)", + PTR_ERR(skb)); + return; + } + + /* A basic length check */ + if (skb->len < VENDOR_CAPA_BASE_SIZE) + goto length_error; + + rp = (struct aosp_rp_le_get_vendor_capa *)skb->data; + + version_supported = le16_to_cpu(rp->version_supported); + /* AOSP displays the version number like v0.98, v1.00, etc. */ + bt_dev_info(hdev, "AOSP extensions version v%u.%02u", + version_supported >> 8, version_supported & 0xff); + + /* Do not support very old versions. */ + if (version_supported < 95) { + bt_dev_warn(hdev, "AOSP capabilities version %u too old", + version_supported); + goto done; + } + + if (version_supported < 98) { + bt_dev_warn(hdev, "AOSP quality report is not supported"); + goto done; + } + + if (skb->len < VENDOR_CAPA_0_98_SIZE) + goto length_error; + + /* The bluetooth_quality_report_support is defined at version + * v0.98. Refer to + * https://cs.android.com/android/platform/superproject/+/ + * master:system/bt/gd/hci/controller.cc;l=477 + */ + if (rp->bluetooth_quality_report_support) { + hdev->aosp_quality_report = true; + bt_dev_info(hdev, "AOSP quality report is supported"); + } + + goto done; + +length_error: + bt_dev_err(hdev, "AOSP capabilities length %d too short", skb->len); + +done: + kfree_skb(skb); +} + +void aosp_do_close(struct hci_dev *hdev) +{ + if (!hdev->aosp_capable) + return; + + bt_dev_dbg(hdev, "Cleanup of AOSP extension"); +} + +/* BQR command */ +#define BQR_OPCODE hci_opcode_pack(0x3f, 0x015e) + +/* BQR report action */ +#define REPORT_ACTION_ADD 0x00 +#define REPORT_ACTION_DELETE 0x01 +#define REPORT_ACTION_CLEAR 0x02 + +/* BQR event masks */ +#define QUALITY_MONITORING BIT(0) +#define APPRAOCHING_LSTO BIT(1) +#define A2DP_AUDIO_CHOPPY BIT(2) +#define SCO_VOICE_CHOPPY BIT(3) + +#define DEFAULT_BQR_EVENT_MASK (QUALITY_MONITORING | APPRAOCHING_LSTO | \ + A2DP_AUDIO_CHOPPY | SCO_VOICE_CHOPPY) + +/* Reporting at milliseconds so as not to stress the controller too much. + * Range: 0 ~ 65535 ms + */ +#define DEFALUT_REPORT_INTERVAL_MS 5000 + +struct aosp_bqr_cp { + __u8 report_action; + __u32 event_mask; + __u16 min_report_interval; +} __packed; + +static int enable_quality_report(struct hci_dev *hdev) +{ + struct sk_buff *skb; + struct aosp_bqr_cp cp; + + cp.report_action = REPORT_ACTION_ADD; + cp.event_mask = DEFAULT_BQR_EVENT_MASK; + cp.min_report_interval = DEFALUT_REPORT_INTERVAL_MS; + + skb = __hci_cmd_sync(hdev, BQR_OPCODE, sizeof(cp), &cp, + HCI_CMD_TIMEOUT); + if (IS_ERR_OR_NULL(skb)) { + if (!skb) + skb = ERR_PTR(-EIO); + + bt_dev_err(hdev, "Enabling Android BQR failed (%ld)", + PTR_ERR(skb)); + return PTR_ERR(skb); + } + + kfree_skb(skb); + return 0; +} + +static int disable_quality_report(struct hci_dev *hdev) +{ + struct sk_buff *skb; + struct aosp_bqr_cp cp = { 0 }; + + cp.report_action = REPORT_ACTION_CLEAR; + + skb = __hci_cmd_sync(hdev, BQR_OPCODE, sizeof(cp), &cp, + HCI_CMD_TIMEOUT); + if (IS_ERR_OR_NULL(skb)) { + if (!skb) + skb = ERR_PTR(-EIO); + + bt_dev_err(hdev, "Disabling Android BQR failed (%ld)", + PTR_ERR(skb)); + return PTR_ERR(skb); + } + + kfree_skb(skb); + return 0; +} + +bool aosp_has_quality_report(struct hci_dev *hdev) +{ + return hdev->aosp_quality_report; +} + +int aosp_set_quality_report(struct hci_dev *hdev, bool enable) +{ + if (!aosp_has_quality_report(hdev)) + return -EOPNOTSUPP; + + bt_dev_dbg(hdev, "quality report enable %d", enable); + + /* Enable or disable the quality report feature. */ + if (enable) + return enable_quality_report(hdev); + else + return disable_quality_report(hdev); +} -- cgit v1.3.1