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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/media/test-drivers/vivid/vivid-vbi-out.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'drivers/media/test-drivers/vivid/vivid-vbi-out.c')
-rw-r--r--drivers/media/test-drivers/vivid/vivid-vbi-out.c250
1 files changed, 250 insertions, 0 deletions
diff --git a/drivers/media/test-drivers/vivid/vivid-vbi-out.c b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
new file mode 100644
index 000000000..cd5647690
--- /dev/null
+++ b/drivers/media/test-drivers/vivid/vivid-vbi-out.c
@@ -0,0 +1,250 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vivid-vbi-out.c - vbi output support functions.
+ *
+ * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+
+#include "vivid-core.h"
+#include "vivid-kthread-out.h"
+#include "vivid-vbi-out.h"
+#include "vivid-vbi-cap.h"
+
+static int vbi_out_queue_setup(struct vb2_queue *vq,
+ unsigned *nbuffers, unsigned *nplanes,
+ unsigned sizes[], struct device *alloc_devs[])
+{
+ struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ bool is_60hz = dev->std_out & V4L2_STD_525_60;
+ unsigned size = vq->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ?
+ 36 * sizeof(struct v4l2_sliced_vbi_data) :
+ 1440 * 2 * (is_60hz ? 12 : 18);
+
+ if (!vivid_is_svid_out(dev))
+ return -EINVAL;
+
+ sizes[0] = size;
+
+ if (vq->num_buffers + *nbuffers < 2)
+ *nbuffers = 2 - vq->num_buffers;
+
+ *nplanes = 1;
+ return 0;
+}
+
+static int vbi_out_buf_prepare(struct vb2_buffer *vb)
+{
+ struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+ bool is_60hz = dev->std_out & V4L2_STD_525_60;
+ unsigned size = vb->vb2_queue->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT ?
+ 36 * sizeof(struct v4l2_sliced_vbi_data) :
+ 1440 * 2 * (is_60hz ? 12 : 18);
+
+ dprintk(dev, 1, "%s\n", __func__);
+
+ if (dev->buf_prepare_error) {
+ /*
+ * Error injection: test what happens if buf_prepare() returns
+ * an error.
+ */
+ dev->buf_prepare_error = false;
+ return -EINVAL;
+ }
+ if (vb2_plane_size(vb, 0) < size) {
+ dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n",
+ __func__, vb2_plane_size(vb, 0), size);
+ return -EINVAL;
+ }
+ vb2_set_plane_payload(vb, 0, size);
+
+ return 0;
+}
+
+static void vbi_out_buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
+
+ dprintk(dev, 1, "%s\n", __func__);
+
+ spin_lock(&dev->slock);
+ list_add_tail(&buf->list, &dev->vbi_out_active);
+ spin_unlock(&dev->slock);
+}
+
+static int vbi_out_start_streaming(struct vb2_queue *vq, unsigned count)
+{
+ struct vivid_dev *dev = vb2_get_drv_priv(vq);
+ int err;
+
+ dprintk(dev, 1, "%s\n", __func__);
+ dev->vbi_out_seq_count = 0;
+ if (dev->start_streaming_error) {
+ dev->start_streaming_error = false;
+ err = -EINVAL;
+ } else {
+ err = vivid_start_generating_vid_out(dev, &dev->vbi_out_streaming);
+ }
+ if (err) {
+ struct vivid_buffer *buf, *tmp;
+
+ list_for_each_entry_safe(buf, tmp, &dev->vbi_out_active, list) {
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb.vb2_buf,
+ VB2_BUF_STATE_QUEUED);
+ }
+ }
+ return err;
+}
+
+/* abort streaming and wait for last buffer */
+static void vbi_out_stop_streaming(struct vb2_queue *vq)
+{
+ struct vivid_dev *dev = vb2_get_drv_priv(vq);
+
+ dprintk(dev, 1, "%s\n", __func__);
+ vivid_stop_generating_vid_out(dev, &dev->vbi_out_streaming);
+ dev->vbi_out_have_wss = false;
+ dev->vbi_out_have_cc[0] = false;
+ dev->vbi_out_have_cc[1] = false;
+}
+
+static void vbi_out_buf_request_complete(struct vb2_buffer *vb)
+{
+ struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
+
+ v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vbi_out);
+}
+
+const struct vb2_ops vivid_vbi_out_qops = {
+ .queue_setup = vbi_out_queue_setup,
+ .buf_prepare = vbi_out_buf_prepare,
+ .buf_queue = vbi_out_buf_queue,
+ .start_streaming = vbi_out_start_streaming,
+ .stop_streaming = vbi_out_stop_streaming,
+ .buf_request_complete = vbi_out_buf_request_complete,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
+
+int vidioc_g_fmt_vbi_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct vivid_dev *dev = video_drvdata(file);
+ struct v4l2_vbi_format *vbi = &f->fmt.vbi;
+ bool is_60hz = dev->std_out & V4L2_STD_525_60;
+
+ if (!vivid_is_svid_out(dev) || !dev->has_raw_vbi_out)
+ return -EINVAL;
+
+ vbi->sampling_rate = 25000000;
+ vbi->offset = 24;
+ vbi->samples_per_line = 1440;
+ vbi->sample_format = V4L2_PIX_FMT_GREY;
+ vbi->start[0] = is_60hz ? V4L2_VBI_ITU_525_F1_START + 9 : V4L2_VBI_ITU_625_F1_START + 5;
+ vbi->start[1] = is_60hz ? V4L2_VBI_ITU_525_F2_START + 9 : V4L2_VBI_ITU_625_F2_START + 5;
+ vbi->count[0] = vbi->count[1] = is_60hz ? 12 : 18;
+ vbi->flags = dev->vbi_cap_interlaced ? V4L2_VBI_INTERLACED : 0;
+ vbi->reserved[0] = 0;
+ vbi->reserved[1] = 0;
+ return 0;
+}
+
+int vidioc_s_fmt_vbi_out(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct vivid_dev *dev = video_drvdata(file);
+ int ret = vidioc_g_fmt_vbi_out(file, priv, f);
+
+ if (ret)
+ return ret;
+ if (vb2_is_busy(&dev->vb_vbi_out_q))
+ return -EBUSY;
+ dev->stream_sliced_vbi_out = false;
+ dev->vbi_out_dev.queue->type = V4L2_BUF_TYPE_VBI_OUTPUT;
+ return 0;
+}
+
+int vidioc_g_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt)
+{
+ struct vivid_dev *dev = video_drvdata(file);
+ struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
+
+ if (!vivid_is_svid_out(dev) || !dev->has_sliced_vbi_out)
+ return -EINVAL;
+
+ vivid_fill_service_lines(vbi, dev->service_set_out);
+ return 0;
+}
+
+int vidioc_try_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt)
+{
+ struct vivid_dev *dev = video_drvdata(file);
+ struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
+ bool is_60hz = dev->std_out & V4L2_STD_525_60;
+ u32 service_set = vbi->service_set;
+
+ if (!vivid_is_svid_out(dev) || !dev->has_sliced_vbi_out)
+ return -EINVAL;
+
+ service_set &= is_60hz ? V4L2_SLICED_CAPTION_525 :
+ V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
+ vivid_fill_service_lines(vbi, service_set);
+ return 0;
+}
+
+int vidioc_s_fmt_sliced_vbi_out(struct file *file, void *fh,
+ struct v4l2_format *fmt)
+{
+ struct vivid_dev *dev = video_drvdata(file);
+ struct v4l2_sliced_vbi_format *vbi = &fmt->fmt.sliced;
+ int ret = vidioc_try_fmt_sliced_vbi_out(file, fh, fmt);
+
+ if (ret)
+ return ret;
+ if (vb2_is_busy(&dev->vb_vbi_out_q))
+ return -EBUSY;
+ dev->service_set_out = vbi->service_set;
+ dev->stream_sliced_vbi_out = true;
+ dev->vbi_out_dev.queue->type = V4L2_BUF_TYPE_SLICED_VBI_OUTPUT;
+ return 0;
+}
+
+void vivid_sliced_vbi_out_process(struct vivid_dev *dev,
+ struct vivid_buffer *buf)
+{
+ struct v4l2_sliced_vbi_data *vbi =
+ vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
+ unsigned elems =
+ vb2_get_plane_payload(&buf->vb.vb2_buf, 0) / sizeof(*vbi);
+
+ dev->vbi_out_have_cc[0] = false;
+ dev->vbi_out_have_cc[1] = false;
+ dev->vbi_out_have_wss = false;
+ while (elems--) {
+ switch (vbi->id) {
+ case V4L2_SLICED_CAPTION_525:
+ if ((dev->std_out & V4L2_STD_525_60) && vbi->line == 21) {
+ dev->vbi_out_have_cc[!!vbi->field] = true;
+ dev->vbi_out_cc[!!vbi->field][0] = vbi->data[0];
+ dev->vbi_out_cc[!!vbi->field][1] = vbi->data[1];
+ }
+ break;
+ case V4L2_SLICED_WSS_625:
+ if ((dev->std_out & V4L2_STD_625_50) &&
+ vbi->field == 0 && vbi->line == 23) {
+ dev->vbi_out_have_wss = true;
+ dev->vbi_out_wss[0] = vbi->data[0];
+ dev->vbi_out_wss[1] = vbi->data[1];
+ }
+ break;
+ }
+ vbi++;
+ }
+}