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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/usb/gspca/mars.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
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/usb/gspca/mars.c')
-rw-r--r--drivers/media/usb/gspca/mars.c427
1 files changed, 427 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/mars.c b/drivers/media/usb/gspca/mars.c
new file mode 100644
index 000000000..eb9342ee3
--- /dev/null
+++ b/drivers/media/usb/gspca/mars.c
@@ -0,0 +1,427 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Mars-Semi MR97311A library
+ * Copyright (C) 2005 <bradlch@hotmail.com>
+ *
+ * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define MODULE_NAME "mars"
+
+#include "gspca.h"
+#include "jpeg.h"
+
+MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
+MODULE_DESCRIPTION("GSPCA/Mars USB Camera Driver");
+MODULE_LICENSE("GPL");
+
+#define QUALITY 50
+
+/* specific webcam descriptor */
+struct sd {
+ struct gspca_dev gspca_dev; /* !! must be the first item */
+
+ struct v4l2_ctrl *brightness;
+ struct v4l2_ctrl *saturation;
+ struct v4l2_ctrl *sharpness;
+ struct v4l2_ctrl *gamma;
+ struct { /* illuminator control cluster */
+ struct v4l2_ctrl *illum_top;
+ struct v4l2_ctrl *illum_bottom;
+ };
+ u8 jpeg_hdr[JPEG_HDR_SZ];
+};
+
+/* V4L2 controls supported by the driver */
+static void setbrightness(struct gspca_dev *gspca_dev, s32 val);
+static void setcolors(struct gspca_dev *gspca_dev, s32 val);
+static void setgamma(struct gspca_dev *gspca_dev, s32 val);
+static void setsharpness(struct gspca_dev *gspca_dev, s32 val);
+
+static const struct v4l2_pix_format vga_mode[] = {
+ {320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+ .bytesperline = 320,
+ .sizeimage = 320 * 240 * 3 / 8 + 590,
+ .colorspace = V4L2_COLORSPACE_JPEG,
+ .priv = 2},
+ {640, 480, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
+ .bytesperline = 640,
+ .sizeimage = 640 * 480 * 3 / 8 + 590,
+ .colorspace = V4L2_COLORSPACE_JPEG,
+ .priv = 1},
+};
+
+static const __u8 mi_data[0x20] = {
+/* 01 02 03 04 05 06 07 08 */
+ 0x48, 0x22, 0x01, 0x47, 0x10, 0x00, 0x00, 0x00,
+/* 09 0a 0b 0c 0d 0e 0f 10 */
+ 0x00, 0x01, 0x30, 0x01, 0x30, 0x01, 0x30, 0x01,
+/* 11 12 13 14 15 16 17 18 */
+ 0x30, 0x00, 0x04, 0x00, 0x06, 0x01, 0xe2, 0x02,
+/* 19 1a 1b 1c 1d 1e 1f 20 */
+ 0x82, 0x00, 0x20, 0x17, 0x80, 0x08, 0x0c, 0x00
+};
+
+/* write <len> bytes from gspca_dev->usb_buf */
+static void reg_w(struct gspca_dev *gspca_dev,
+ int len)
+{
+ int alen, ret;
+
+ if (gspca_dev->usb_err < 0)
+ return;
+
+ ret = usb_bulk_msg(gspca_dev->dev,
+ usb_sndbulkpipe(gspca_dev->dev, 4),
+ gspca_dev->usb_buf,
+ len,
+ &alen,
+ 500); /* timeout in milliseconds */
+ if (ret < 0) {
+ pr_err("reg write [%02x] error %d\n",
+ gspca_dev->usb_buf[0], ret);
+ gspca_dev->usb_err = ret;
+ }
+}
+
+static void mi_w(struct gspca_dev *gspca_dev,
+ u8 addr,
+ u8 value)
+{
+ gspca_dev->usb_buf[0] = 0x1f;
+ gspca_dev->usb_buf[1] = 0; /* control byte */
+ gspca_dev->usb_buf[2] = addr;
+ gspca_dev->usb_buf[3] = value;
+
+ reg_w(gspca_dev, 4);
+}
+
+static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
+{
+ gspca_dev->usb_buf[0] = 0x61;
+ gspca_dev->usb_buf[1] = val;
+ reg_w(gspca_dev, 2);
+}
+
+static void setcolors(struct gspca_dev *gspca_dev, s32 val)
+{
+ gspca_dev->usb_buf[0] = 0x5f;
+ gspca_dev->usb_buf[1] = val << 3;
+ gspca_dev->usb_buf[2] = ((val >> 2) & 0xf8) | 0x04;
+ reg_w(gspca_dev, 3);
+}
+
+static void setgamma(struct gspca_dev *gspca_dev, s32 val)
+{
+ gspca_dev->usb_buf[0] = 0x06;
+ gspca_dev->usb_buf[1] = val * 0x40;
+ reg_w(gspca_dev, 2);
+}
+
+static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
+{
+ gspca_dev->usb_buf[0] = 0x67;
+ gspca_dev->usb_buf[1] = val * 4 + 3;
+ reg_w(gspca_dev, 2);
+}
+
+static void setilluminators(struct gspca_dev *gspca_dev, bool top, bool bottom)
+{
+ /* both are off if not streaming */
+ gspca_dev->usb_buf[0] = 0x22;
+ if (top)
+ gspca_dev->usb_buf[1] = 0x76;
+ else if (bottom)
+ gspca_dev->usb_buf[1] = 0x7a;
+ else
+ gspca_dev->usb_buf[1] = 0x7e;
+ reg_w(gspca_dev, 2);
+}
+
+static int mars_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct gspca_dev *gspca_dev =
+ container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+ struct sd *sd = (struct sd *)gspca_dev;
+
+ gspca_dev->usb_err = 0;
+
+ if (ctrl->id == V4L2_CID_ILLUMINATORS_1) {
+ /* only one can be on at a time */
+ if (ctrl->is_new && ctrl->val)
+ sd->illum_bottom->val = 0;
+ if (sd->illum_bottom->is_new && sd->illum_bottom->val)
+ sd->illum_top->val = 0;
+ }
+
+ if (!gspca_dev->streaming)
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ setbrightness(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_SATURATION:
+ setcolors(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_GAMMA:
+ setgamma(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_ILLUMINATORS_1:
+ setilluminators(gspca_dev, sd->illum_top->val,
+ sd->illum_bottom->val);
+ break;
+ case V4L2_CID_SHARPNESS:
+ setsharpness(gspca_dev, ctrl->val);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return gspca_dev->usb_err;
+}
+
+static const struct v4l2_ctrl_ops mars_ctrl_ops = {
+ .s_ctrl = mars_s_ctrl,
+};
+
+/* this function is called at probe time */
+static int sd_init_controls(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;
+
+ gspca_dev->vdev.ctrl_handler = hdl;
+ v4l2_ctrl_handler_init(hdl, 6);
+ sd->brightness = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
+ V4L2_CID_BRIGHTNESS, 0, 30, 1, 15);
+ sd->saturation = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
+ V4L2_CID_SATURATION, 0, 255, 1, 200);
+ sd->gamma = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
+ V4L2_CID_GAMMA, 0, 3, 1, 1);
+ sd->sharpness = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
+ V4L2_CID_SHARPNESS, 0, 2, 1, 1);
+ sd->illum_top = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
+ V4L2_CID_ILLUMINATORS_1, 0, 1, 1, 0);
+ sd->illum_top->flags |= V4L2_CTRL_FLAG_UPDATE;
+ sd->illum_bottom = v4l2_ctrl_new_std(hdl, &mars_ctrl_ops,
+ V4L2_CID_ILLUMINATORS_2, 0, 1, 1, 0);
+ sd->illum_bottom->flags |= V4L2_CTRL_FLAG_UPDATE;
+ if (hdl->error) {
+ pr_err("Could not initialize controls\n");
+ return hdl->error;
+ }
+ v4l2_ctrl_cluster(2, &sd->illum_top);
+ return 0;
+}
+
+/* this function is called at probe time */
+static int sd_config(struct gspca_dev *gspca_dev,
+ const struct usb_device_id *id)
+{
+ struct cam *cam;
+
+ cam = &gspca_dev->cam;
+ cam->cam_mode = vga_mode;
+ cam->nmodes = ARRAY_SIZE(vga_mode);
+ return 0;
+}
+
+/* this function is called at probe and resume time */
+static int sd_init(struct gspca_dev *gspca_dev)
+{
+ return 0;
+}
+
+static int sd_start(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ u8 *data;
+ int i;
+
+ /* create the JPEG header */
+ jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
+ gspca_dev->pixfmt.width,
+ 0x21); /* JPEG 422 */
+ jpeg_set_qual(sd->jpeg_hdr, QUALITY);
+
+ data = gspca_dev->usb_buf;
+
+ data[0] = 0x01; /* address */
+ data[1] = 0x01;
+ reg_w(gspca_dev, 2);
+
+ /*
+ Initialize the MR97113 chip register
+ */
+ data[0] = 0x00; /* address */
+ data[1] = 0x0c | 0x01; /* reg 0 */
+ data[2] = 0x01; /* reg 1 */
+ data[3] = gspca_dev->pixfmt.width / 8; /* h_size , reg 2 */
+ data[4] = gspca_dev->pixfmt.height / 8; /* v_size , reg 3 */
+ data[5] = 0x30; /* reg 4, MI, PAS5101 :
+ * 0x30 for 24mhz , 0x28 for 12mhz */
+ data[6] = 0x02; /* reg 5, H start - was 0x04 */
+ data[7] = v4l2_ctrl_g_ctrl(sd->gamma) * 0x40; /* reg 0x06: gamma */
+ data[8] = 0x01; /* reg 7, V start - was 0x03 */
+/* if (h_size == 320 ) */
+/* data[9]= 0x56; * reg 8, 24MHz, 2:1 scale down */
+/* else */
+ data[9] = 0x52; /* reg 8, 24MHz, no scale down */
+/*jfm: from win trace*/
+ data[10] = 0x18;
+
+ reg_w(gspca_dev, 11);
+
+ data[0] = 0x23; /* address */
+ data[1] = 0x09; /* reg 35, append frame header */
+
+ reg_w(gspca_dev, 2);
+
+ data[0] = 0x3c; /* address */
+/* if (gspca_dev->width == 1280) */
+/* data[1] = 200; * reg 60, pc-cam frame size
+ * (unit: 4KB) 800KB */
+/* else */
+ data[1] = 50; /* 50 reg 60, pc-cam frame size
+ * (unit: 4KB) 200KB */
+ reg_w(gspca_dev, 2);
+
+ /* auto dark-gain */
+ data[0] = 0x5e; /* address */
+ data[1] = 0; /* reg 94, Y Gain (auto) */
+/*jfm: from win trace*/
+ /* reg 0x5f/0x60 (LE) = saturation */
+ /* h (60): xxxx x100
+ * l (5f): xxxx x000 */
+ data[2] = v4l2_ctrl_g_ctrl(sd->saturation) << 3;
+ data[3] = ((v4l2_ctrl_g_ctrl(sd->saturation) >> 2) & 0xf8) | 0x04;
+ data[4] = v4l2_ctrl_g_ctrl(sd->brightness); /* reg 0x61 = brightness */
+ data[5] = 0x00;
+
+ reg_w(gspca_dev, 6);
+
+ data[0] = 0x67;
+/*jfm: from win trace*/
+ data[1] = v4l2_ctrl_g_ctrl(sd->sharpness) * 4 + 3;
+ data[2] = 0x14;
+ reg_w(gspca_dev, 3);
+
+ data[0] = 0x69;
+ data[1] = 0x2f;
+ data[2] = 0x28;
+ data[3] = 0x42;
+ reg_w(gspca_dev, 4);
+
+ data[0] = 0x63;
+ data[1] = 0x07;
+ reg_w(gspca_dev, 2);
+/*jfm: win trace - many writes here to reg 0x64*/
+
+ /* initialize the MI sensor */
+ for (i = 0; i < sizeof mi_data; i++)
+ mi_w(gspca_dev, i + 1, mi_data[i]);
+
+ data[0] = 0x00;
+ data[1] = 0x4d; /* ISOC transferring enable... */
+ reg_w(gspca_dev, 2);
+
+ setilluminators(gspca_dev, v4l2_ctrl_g_ctrl(sd->illum_top),
+ v4l2_ctrl_g_ctrl(sd->illum_bottom));
+
+ return gspca_dev->usb_err;
+}
+
+static void sd_stopN(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (v4l2_ctrl_g_ctrl(sd->illum_top) ||
+ v4l2_ctrl_g_ctrl(sd->illum_bottom)) {
+ setilluminators(gspca_dev, false, false);
+ msleep(20);
+ }
+
+ gspca_dev->usb_buf[0] = 1;
+ gspca_dev->usb_buf[1] = 0;
+ reg_w(gspca_dev, 2);
+}
+
+static void sd_pkt_scan(struct gspca_dev *gspca_dev,
+ u8 *data, /* isoc packet */
+ int len) /* iso packet length */
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ int p;
+
+ if (len < 6) {
+/* gspca_dev->last_packet_type = DISCARD_PACKET; */
+ return;
+ }
+ for (p = 0; p < len - 6; p++) {
+ if (data[0 + p] == 0xff
+ && data[1 + p] == 0xff
+ && data[2 + p] == 0x00
+ && data[3 + p] == 0xff
+ && data[4 + p] == 0x96) {
+ if (data[5 + p] == 0x64
+ || data[5 + p] == 0x65
+ || data[5 + p] == 0x66
+ || data[5 + p] == 0x67) {
+ gspca_dbg(gspca_dev, D_PACK, "sof offset: %d len: %d\n",
+ p, len);
+ gspca_frame_add(gspca_dev, LAST_PACKET,
+ data, p);
+
+ /* put the JPEG header */
+ gspca_frame_add(gspca_dev, FIRST_PACKET,
+ sd->jpeg_hdr, JPEG_HDR_SZ);
+ data += p + 16;
+ len -= p + 16;
+ break;
+ }
+ }
+ }
+ gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
+}
+
+/* sub-driver description */
+static const struct sd_desc sd_desc = {
+ .name = MODULE_NAME,
+ .config = sd_config,
+ .init = sd_init,
+ .init_controls = sd_init_controls,
+ .start = sd_start,
+ .stopN = sd_stopN,
+ .pkt_scan = sd_pkt_scan,
+};
+
+/* -- module initialisation -- */
+static const struct usb_device_id device_table[] = {
+ {USB_DEVICE(0x093a, 0x050f)},
+ {}
+};
+MODULE_DEVICE_TABLE(usb, device_table);
+
+/* -- device connect -- */
+static int sd_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
+ THIS_MODULE);
+}
+
+static struct usb_driver sd_driver = {
+ .name = MODULE_NAME,
+ .id_table = device_table,
+ .probe = sd_probe,
+ .disconnect = gspca_disconnect,
+#ifdef CONFIG_PM
+ .suspend = gspca_suspend,
+ .resume = gspca_resume,
+ .reset_resume = gspca_resume,
+#endif
+};
+
+module_usb_driver(sd_driver);