From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/media/usb/pwc/pwc-ctrl.c | 544 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 544 insertions(+) create mode 100644 drivers/media/usb/pwc/pwc-ctrl.c (limited to 'drivers/media/usb/pwc/pwc-ctrl.c') diff --git a/drivers/media/usb/pwc/pwc-ctrl.c b/drivers/media/usb/pwc/pwc-ctrl.c new file mode 100644 index 000000000..cff64d872 --- /dev/null +++ b/drivers/media/usb/pwc/pwc-ctrl.c @@ -0,0 +1,544 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* Driver for Philips webcam + Functions that send various control messages to the webcam, including + video modes. + (C) 1999-2003 Nemosoft Unv. + (C) 2004-2006 Luc Saillard (luc@saillard.org) + (C) 2011 Hans de Goede + + NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx + driver and thus may have bugs that are not present in the original version. + Please send bug reports and support requests to . + + NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx + driver and thus may have bugs that are not present in the original version. + Please send bug reports and support requests to . + The decompression routines have been implemented by reverse-engineering the + Nemosoft binary pwcx module. Caveat emptor. + +*/ + +/* + Changes + 2001/08/03 Alvarado Added methods for changing white balance and + red/green gains + */ + +/* Control functions for the cam; brightness, contrast, video mode, etc. */ + +#ifdef __KERNEL__ +#include +#endif +#include + +#include "pwc.h" +#include "pwc-kiara.h" +#include "pwc-timon.h" +#include "pwc-dec1.h" +#include "pwc-dec23.h" + +/* Selectors for status controls used only in this file */ +#define GET_STATUS_B00 0x0B00 +#define SENSOR_TYPE_FORMATTER1 0x0C00 +#define GET_STATUS_3000 0x3000 +#define READ_RAW_Y_MEAN_FORMATTER 0x3100 +#define SET_POWER_SAVE_MODE_FORMATTER 0x3200 +#define MIRROR_IMAGE_FORMATTER 0x3300 +#define LED_FORMATTER 0x3400 +#define LOWLIGHT 0x3500 +#define GET_STATUS_3600 0x3600 +#define SENSOR_TYPE_FORMATTER2 0x3700 +#define GET_STATUS_3800 0x3800 +#define GET_STATUS_4000 0x4000 +#define GET_STATUS_4100 0x4100 /* Get */ +#define CTL_STATUS_4200 0x4200 /* [GS] 1 */ + +/* Formatters for the Video Endpoint controls [GS]ET_EP_STREAM_CTL */ +#define VIDEO_OUTPUT_CONTROL_FORMATTER 0x0100 + +static const char *size2name[PSZ_MAX] = +{ + "subQCIF", + "QSIF", + "QCIF", + "SIF", + "CIF", + "VGA", +}; + +/********/ + +/* Entries for the Nala (645/646) camera; the Nala doesn't have compression + preferences, so you either get compressed or non-compressed streams. + + An alternate value of 0 means this mode is not available at all. + */ + +#define PWC_FPS_MAX_NALA 8 + +struct Nala_table_entry { + char alternate; /* USB alternate setting */ + int compressed; /* Compressed yes/no */ + + unsigned char mode[3]; /* precomputed mode table */ +}; + +static unsigned int Nala_fps_vector[PWC_FPS_MAX_NALA] = { 4, 5, 7, 10, 12, 15, 20, 24 }; + +static struct Nala_table_entry Nala_table[PSZ_MAX][PWC_FPS_MAX_NALA] = +{ +#include "pwc-nala.h" +}; + +/****************************************************************************/ + +static int recv_control_msg(struct pwc_device *pdev, + u8 request, u16 value, int recv_count) +{ + int rc; + + rc = usb_control_msg(pdev->udev, usb_rcvctrlpipe(pdev->udev, 0), + request, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, pdev->vcinterface, + pdev->ctrl_buf, recv_count, USB_CTRL_GET_TIMEOUT); + if (rc < 0) + PWC_ERROR("recv_control_msg error %d req %02x val %04x\n", + rc, request, value); + return rc; +} + +static inline int send_video_command(struct pwc_device *pdev, + int index, const unsigned char *buf, int buflen) +{ + int rc; + + memcpy(pdev->ctrl_buf, buf, buflen); + + rc = usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), + SET_EP_STREAM_CTL, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + VIDEO_OUTPUT_CONTROL_FORMATTER, index, + pdev->ctrl_buf, buflen, USB_CTRL_SET_TIMEOUT); + if (rc >= 0) + memcpy(pdev->cmd_buf, buf, buflen); + else + PWC_ERROR("send_video_command error %d\n", rc); + + return rc; +} + +int send_control_msg(struct pwc_device *pdev, + u8 request, u16 value, void *buf, int buflen) +{ + return usb_control_msg(pdev->udev, usb_sndctrlpipe(pdev->udev, 0), + request, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, pdev->vcinterface, + buf, buflen, USB_CTRL_SET_TIMEOUT); +} + +static int set_video_mode_Nala(struct pwc_device *pdev, int size, int pixfmt, + int frames, int *compression, int send_to_cam) +{ + int fps, ret = 0; + struct Nala_table_entry *pEntry; + int frames2frames[31] = + { /* closest match of framerate */ + 0, 0, 0, 0, 4, /* 0-4 */ + 5, 5, 7, 7, 10, /* 5-9 */ + 10, 10, 12, 12, 15, /* 10-14 */ + 15, 15, 15, 20, 20, /* 15-19 */ + 20, 20, 20, 24, 24, /* 20-24 */ + 24, 24, 24, 24, 24, /* 25-29 */ + 24 /* 30 */ + }; + int frames2table[31] = + { 0, 0, 0, 0, 0, /* 0-4 */ + 1, 1, 1, 2, 2, /* 5-9 */ + 3, 3, 4, 4, 4, /* 10-14 */ + 5, 5, 5, 5, 5, /* 15-19 */ + 6, 6, 6, 6, 7, /* 20-24 */ + 7, 7, 7, 7, 7, /* 25-29 */ + 7 /* 30 */ + }; + + if (size < 0 || size > PSZ_CIF) + return -EINVAL; + if (frames < 4) + frames = 4; + else if (size > PSZ_QCIF && frames > 15) + frames = 15; + else if (frames > 25) + frames = 25; + frames = frames2frames[frames]; + fps = frames2table[frames]; + pEntry = &Nala_table[size][fps]; + if (pEntry->alternate == 0) + return -EINVAL; + + if (send_to_cam) + ret = send_video_command(pdev, pdev->vendpoint, + pEntry->mode, 3); + if (ret < 0) + return ret; + + if (pEntry->compressed && pixfmt == V4L2_PIX_FMT_YUV420) + pwc_dec1_init(pdev, pEntry->mode); + + /* Set various parameters */ + pdev->pixfmt = pixfmt; + pdev->vframes = frames; + pdev->valternate = pEntry->alternate; + pdev->width = pwc_image_sizes[size][0]; + pdev->height = pwc_image_sizes[size][1]; + pdev->frame_size = (pdev->width * pdev->height * 3) / 2; + if (pEntry->compressed) { + if (pdev->release < 5) { /* 4 fold compression */ + pdev->vbandlength = 528; + pdev->frame_size /= 4; + } + else { + pdev->vbandlength = 704; + pdev->frame_size /= 3; + } + } + else + pdev->vbandlength = 0; + + /* Let pwc-if.c:isoc_init know we don't support higher compression */ + *compression = 3; + + return 0; +} + + +static int set_video_mode_Timon(struct pwc_device *pdev, int size, int pixfmt, + int frames, int *compression, int send_to_cam) +{ + const struct Timon_table_entry *pChoose; + int fps, ret = 0; + + if (size >= PSZ_MAX || *compression < 0 || *compression > 3) + return -EINVAL; + if (frames < 5) + frames = 5; + else if (size == PSZ_VGA && frames > 15) + frames = 15; + else if (frames > 30) + frames = 30; + fps = (frames / 5) - 1; + + /* Find a supported framerate with progressively higher compression */ + do { + pChoose = &Timon_table[size][fps][*compression]; + if (pChoose->alternate != 0) + break; + (*compression)++; + } while (*compression <= 3); + + if (pChoose->alternate == 0) + return -ENOENT; /* Not supported. */ + + if (send_to_cam) + ret = send_video_command(pdev, pdev->vendpoint, + pChoose->mode, 13); + if (ret < 0) + return ret; + + if (pChoose->bandlength > 0 && pixfmt == V4L2_PIX_FMT_YUV420) + pwc_dec23_init(pdev, pChoose->mode); + + /* Set various parameters */ + pdev->pixfmt = pixfmt; + pdev->vframes = (fps + 1) * 5; + pdev->valternate = pChoose->alternate; + pdev->width = pwc_image_sizes[size][0]; + pdev->height = pwc_image_sizes[size][1]; + pdev->vbandlength = pChoose->bandlength; + if (pChoose->bandlength > 0) + pdev->frame_size = (pChoose->bandlength * pdev->height) / 4; + else + pdev->frame_size = (pdev->width * pdev->height * 12) / 8; + return 0; +} + + +static int set_video_mode_Kiara(struct pwc_device *pdev, int size, int pixfmt, + int frames, int *compression, int send_to_cam) +{ + const struct Kiara_table_entry *pChoose; + int fps, ret = 0; + + if (size >= PSZ_MAX || *compression < 0 || *compression > 3) + return -EINVAL; + if (frames < 5) + frames = 5; + else if (size == PSZ_VGA && frames > 15) + frames = 15; + else if (frames > 30) + frames = 30; + fps = (frames / 5) - 1; + + /* Find a supported framerate with progressively higher compression */ + do { + pChoose = &Kiara_table[size][fps][*compression]; + if (pChoose->alternate != 0) + break; + (*compression)++; + } while (*compression <= 3); + + if (pChoose->alternate == 0) + return -ENOENT; /* Not supported. */ + + /* Firmware bug: video endpoint is 5, but commands are sent to endpoint 4 */ + if (send_to_cam) + ret = send_video_command(pdev, 4, pChoose->mode, 12); + if (ret < 0) + return ret; + + if (pChoose->bandlength > 0 && pixfmt == V4L2_PIX_FMT_YUV420) + pwc_dec23_init(pdev, pChoose->mode); + + /* All set and go */ + pdev->pixfmt = pixfmt; + pdev->vframes = (fps + 1) * 5; + pdev->valternate = pChoose->alternate; + pdev->width = pwc_image_sizes[size][0]; + pdev->height = pwc_image_sizes[size][1]; + pdev->vbandlength = pChoose->bandlength; + if (pdev->vbandlength > 0) + pdev->frame_size = (pdev->vbandlength * pdev->height) / 4; + else + pdev->frame_size = (pdev->width * pdev->height * 12) / 8; + PWC_TRACE("frame_size=%d, vframes=%d, vsize=%d, vbandlength=%d\n", + pdev->frame_size, pdev->vframes, size, pdev->vbandlength); + return 0; +} + +int pwc_set_video_mode(struct pwc_device *pdev, int width, int height, + int pixfmt, int frames, int *compression, int send_to_cam) +{ + int ret, size; + + PWC_DEBUG_FLOW("set_video_mode(%dx%d @ %d, pixfmt %08x).\n", + width, height, frames, pixfmt); + size = pwc_get_size(pdev, width, height); + PWC_TRACE("decode_size = %d.\n", size); + + if (DEVICE_USE_CODEC1(pdev->type)) { + ret = set_video_mode_Nala(pdev, size, pixfmt, frames, + compression, send_to_cam); + } else if (DEVICE_USE_CODEC3(pdev->type)) { + ret = set_video_mode_Kiara(pdev, size, pixfmt, frames, + compression, send_to_cam); + } else { + ret = set_video_mode_Timon(pdev, size, pixfmt, frames, + compression, send_to_cam); + } + if (ret < 0) { + PWC_ERROR("Failed to set video mode %s@%d fps; return code = %d\n", size2name[size], frames, ret); + return ret; + } + pdev->frame_total_size = pdev->frame_size + pdev->frame_header_size + pdev->frame_trailer_size; + PWC_DEBUG_SIZE("Set resolution to %dx%d\n", pdev->width, pdev->height); + return 0; +} + +static unsigned int pwc_get_fps_Nala(struct pwc_device *pdev, unsigned int index, unsigned int size) +{ + unsigned int i; + + for (i = 0; i < PWC_FPS_MAX_NALA; i++) { + if (Nala_table[size][i].alternate) { + if (index--==0) return Nala_fps_vector[i]; + } + } + return 0; +} + +static unsigned int pwc_get_fps_Kiara(struct pwc_device *pdev, unsigned int index, unsigned int size) +{ + unsigned int i; + + for (i = 0; i < PWC_FPS_MAX_KIARA; i++) { + if (Kiara_table[size][i][3].alternate) { + if (index--==0) return Kiara_fps_vector[i]; + } + } + return 0; +} + +static unsigned int pwc_get_fps_Timon(struct pwc_device *pdev, unsigned int index, unsigned int size) +{ + unsigned int i; + + for (i=0; i < PWC_FPS_MAX_TIMON; i++) { + if (Timon_table[size][i][3].alternate) { + if (index--==0) return Timon_fps_vector[i]; + } + } + return 0; +} + +unsigned int pwc_get_fps(struct pwc_device *pdev, unsigned int index, unsigned int size) +{ + unsigned int ret; + + if (DEVICE_USE_CODEC1(pdev->type)) { + ret = pwc_get_fps_Nala(pdev, index, size); + + } else if (DEVICE_USE_CODEC3(pdev->type)) { + ret = pwc_get_fps_Kiara(pdev, index, size); + + } else { + ret = pwc_get_fps_Timon(pdev, index, size); + } + + return ret; +} + +int pwc_get_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data) +{ + int ret; + + ret = recv_control_msg(pdev, request, value, 1); + if (ret < 0) + return ret; + + *data = pdev->ctrl_buf[0]; + return 0; +} + +int pwc_set_u8_ctrl(struct pwc_device *pdev, u8 request, u16 value, u8 data) +{ + int ret; + + pdev->ctrl_buf[0] = data; + ret = send_control_msg(pdev, request, value, pdev->ctrl_buf, 1); + if (ret < 0) + return ret; + + return 0; +} + +int pwc_get_s8_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data) +{ + int ret; + + ret = recv_control_msg(pdev, request, value, 1); + if (ret < 0) + return ret; + + *data = ((s8 *)pdev->ctrl_buf)[0]; + return 0; +} + +int pwc_get_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, int *data) +{ + int ret; + + ret = recv_control_msg(pdev, request, value, 2); + if (ret < 0) + return ret; + + *data = (pdev->ctrl_buf[1] << 8) | pdev->ctrl_buf[0]; + return 0; +} + +int pwc_set_u16_ctrl(struct pwc_device *pdev, u8 request, u16 value, u16 data) +{ + int ret; + + pdev->ctrl_buf[0] = data & 0xff; + pdev->ctrl_buf[1] = data >> 8; + ret = send_control_msg(pdev, request, value, pdev->ctrl_buf, 2); + if (ret < 0) + return ret; + + return 0; +} + +int pwc_button_ctrl(struct pwc_device *pdev, u16 value) +{ + int ret; + + ret = send_control_msg(pdev, SET_STATUS_CTL, value, NULL, 0); + if (ret < 0) + return ret; + + return 0; +} + +/* POWER */ +void pwc_camera_power(struct pwc_device *pdev, int power) +{ + int r; + + if (!pdev->power_save) + return; + + if (pdev->type < 675 || (pdev->type < 730 && pdev->release < 6)) + return; /* Not supported by Nala or Timon < release 6 */ + + if (power) + pdev->ctrl_buf[0] = 0x00; /* active */ + else + pdev->ctrl_buf[0] = 0xFF; /* power save */ + r = send_control_msg(pdev, SET_STATUS_CTL, + SET_POWER_SAVE_MODE_FORMATTER, pdev->ctrl_buf, 1); + if (r < 0) + PWC_ERROR("Failed to power %s camera (%d)\n", + power ? "on" : "off", r); +} + +int pwc_set_leds(struct pwc_device *pdev, int on_value, int off_value) +{ + int r; + + if (pdev->type < 730) + return 0; + on_value /= 100; + off_value /= 100; + if (on_value < 0) + on_value = 0; + if (on_value > 0xff) + on_value = 0xff; + if (off_value < 0) + off_value = 0; + if (off_value > 0xff) + off_value = 0xff; + + pdev->ctrl_buf[0] = on_value; + pdev->ctrl_buf[1] = off_value; + + r = send_control_msg(pdev, + SET_STATUS_CTL, LED_FORMATTER, pdev->ctrl_buf, 2); + if (r < 0) + PWC_ERROR("Failed to set LED on/off time (%d)\n", r); + + return r; +} + +#ifdef CONFIG_USB_PWC_DEBUG +int pwc_get_cmos_sensor(struct pwc_device *pdev, int *sensor) +{ + int ret, request; + + if (pdev->type < 675) + request = SENSOR_TYPE_FORMATTER1; + else if (pdev->type < 730) + return -1; /* The Vesta series doesn't have this call */ + else + request = SENSOR_TYPE_FORMATTER2; + + ret = recv_control_msg(pdev, GET_STATUS_CTL, request, 1); + if (ret < 0) + return ret; + if (pdev->type < 675) + *sensor = pdev->ctrl_buf[0] | 0x100; + else + *sensor = pdev->ctrl_buf[0]; + return 0; +} +#endif -- cgit v1.2.3