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2381 lines
66 KiB
2381 lines
66 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* s2255drv.c - a driver for the Sensoray 2255 USB video capture device |
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* |
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* Copyright (C) 2007-2014 by Sensoray Company Inc. |
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* Dean Anderson |
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* |
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* Some video buffer code based on vivi driver: |
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* |
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* Sensoray 2255 device supports 4 simultaneous channels. |
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* The channels are not "crossbar" inputs, they are physically |
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* attached to separate video decoders. |
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* |
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* Because of USB2.0 bandwidth limitations. There is only a |
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* certain amount of data which may be transferred at one time. |
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* |
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* Example maximum bandwidth utilization: |
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* |
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* -full size, color mode YUYV or YUV422P: 2 channels at once |
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* -full or half size Grey scale: all 4 channels at once |
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* -half size, color mode YUYV or YUV422P: all 4 channels at once |
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* -full size, color mode YUYV or YUV422P 1/2 frame rate: all 4 channels |
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* at once. |
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*/ |
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#include <linux/module.h> |
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#include <linux/firmware.h> |
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#include <linux/kernel.h> |
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#include <linux/mutex.h> |
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#include <linux/slab.h> |
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#include <linux/videodev2.h> |
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#include <linux/mm.h> |
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#include <linux/vmalloc.h> |
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#include <linux/usb.h> |
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#include <media/videobuf2-v4l2.h> |
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#include <media/videobuf2-vmalloc.h> |
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#include <media/v4l2-common.h> |
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#include <media/v4l2-device.h> |
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#include <media/v4l2-ioctl.h> |
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#include <media/v4l2-ctrls.h> |
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#include <media/v4l2-event.h> |
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#define S2255_VERSION "1.25.1" |
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#define FIRMWARE_FILE_NAME "f2255usb.bin" |
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/* default JPEG quality */ |
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#define S2255_DEF_JPEG_QUAL 50 |
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/* vendor request in */ |
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#define S2255_VR_IN 0 |
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/* vendor request out */ |
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#define S2255_VR_OUT 1 |
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/* firmware query */ |
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#define S2255_VR_FW 0x30 |
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/* USB endpoint number for configuring the device */ |
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#define S2255_CONFIG_EP 2 |
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/* maximum time for DSP to start responding after last FW word loaded(ms) */ |
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#define S2255_DSP_BOOTTIME 800 |
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/* maximum time to wait for firmware to load (ms) */ |
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#define S2255_LOAD_TIMEOUT (5000 + S2255_DSP_BOOTTIME) |
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#define S2255_MIN_BUFS 2 |
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#define S2255_SETMODE_TIMEOUT 500 |
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#define S2255_VIDSTATUS_TIMEOUT 350 |
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#define S2255_MARKER_FRAME cpu_to_le32(0x2255DA4AL) |
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#define S2255_MARKER_RESPONSE cpu_to_le32(0x2255ACACL) |
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#define S2255_RESPONSE_SETMODE cpu_to_le32(0x01) |
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#define S2255_RESPONSE_FW cpu_to_le32(0x10) |
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#define S2255_RESPONSE_STATUS cpu_to_le32(0x20) |
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#define S2255_USB_XFER_SIZE (16 * 1024) |
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#define MAX_CHANNELS 4 |
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#define SYS_FRAMES 4 |
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/* maximum size is PAL full size plus room for the marker header(s) */ |
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#define SYS_FRAMES_MAXSIZE (720*288*2*2 + 4096) |
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#define DEF_USB_BLOCK S2255_USB_XFER_SIZE |
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#define LINE_SZ_4CIFS_NTSC 640 |
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#define LINE_SZ_2CIFS_NTSC 640 |
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#define LINE_SZ_1CIFS_NTSC 320 |
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#define LINE_SZ_4CIFS_PAL 704 |
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#define LINE_SZ_2CIFS_PAL 704 |
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#define LINE_SZ_1CIFS_PAL 352 |
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#define NUM_LINES_4CIFS_NTSC 240 |
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#define NUM_LINES_2CIFS_NTSC 240 |
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#define NUM_LINES_1CIFS_NTSC 240 |
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#define NUM_LINES_4CIFS_PAL 288 |
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#define NUM_LINES_2CIFS_PAL 288 |
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#define NUM_LINES_1CIFS_PAL 288 |
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#define LINE_SZ_DEF 640 |
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#define NUM_LINES_DEF 240 |
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/* predefined settings */ |
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#define FORMAT_NTSC 1 |
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#define FORMAT_PAL 2 |
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#define SCALE_4CIFS 1 /* 640x480(NTSC) or 704x576(PAL) */ |
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#define SCALE_2CIFS 2 /* 640x240(NTSC) or 704x288(PAL) */ |
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#define SCALE_1CIFS 3 /* 320x240(NTSC) or 352x288(PAL) */ |
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/* SCALE_4CIFSI is the 2 fields interpolated into one */ |
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#define SCALE_4CIFSI 4 /* 640x480(NTSC) or 704x576(PAL) high quality */ |
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#define COLOR_YUVPL 1 /* YUV planar */ |
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#define COLOR_YUVPK 2 /* YUV packed */ |
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#define COLOR_Y8 4 /* monochrome */ |
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#define COLOR_JPG 5 /* JPEG */ |
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#define MASK_COLOR 0x000000ff |
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#define MASK_JPG_QUALITY 0x0000ff00 |
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#define MASK_INPUT_TYPE 0x000f0000 |
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/* frame decimation. */ |
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#define FDEC_1 1 /* capture every frame. default */ |
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#define FDEC_2 2 /* capture every 2nd frame */ |
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#define FDEC_3 3 /* capture every 3rd frame */ |
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#define FDEC_5 5 /* capture every 5th frame */ |
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/*------------------------------------------------------- |
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* Default mode parameters. |
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*-------------------------------------------------------*/ |
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#define DEF_SCALE SCALE_4CIFS |
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#define DEF_COLOR COLOR_YUVPL |
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#define DEF_FDEC FDEC_1 |
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#define DEF_BRIGHT 0 |
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#define DEF_CONTRAST 0x5c |
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#define DEF_SATURATION 0x80 |
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#define DEF_HUE 0 |
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/* usb config commands */ |
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#define IN_DATA_TOKEN cpu_to_le32(0x2255c0de) |
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#define CMD_2255 0xc2255000 |
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#define CMD_SET_MODE cpu_to_le32((CMD_2255 | 0x10)) |
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#define CMD_START cpu_to_le32((CMD_2255 | 0x20)) |
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#define CMD_STOP cpu_to_le32((CMD_2255 | 0x30)) |
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#define CMD_STATUS cpu_to_le32((CMD_2255 | 0x40)) |
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struct s2255_mode { |
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u32 format; /* input video format (NTSC, PAL) */ |
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u32 scale; /* output video scale */ |
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u32 color; /* output video color format */ |
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u32 fdec; /* frame decimation */ |
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u32 bright; /* brightness */ |
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u32 contrast; /* contrast */ |
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u32 saturation; /* saturation */ |
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u32 hue; /* hue (NTSC only)*/ |
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u32 single; /* capture 1 frame at a time (!=0), continuously (==0)*/ |
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u32 usb_block; /* block size. should be 4096 of DEF_USB_BLOCK */ |
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u32 restart; /* if DSP requires restart */ |
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}; |
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#define S2255_READ_IDLE 0 |
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#define S2255_READ_FRAME 1 |
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/* frame structure */ |
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struct s2255_framei { |
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unsigned long size; |
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unsigned long ulState; /* ulState:S2255_READ_IDLE, S2255_READ_FRAME*/ |
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void *lpvbits; /* image data */ |
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unsigned long cur_size; /* current data copied to it */ |
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}; |
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/* image buffer structure */ |
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struct s2255_bufferi { |
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unsigned long dwFrames; /* number of frames in buffer */ |
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struct s2255_framei frame[SYS_FRAMES]; /* array of FRAME structures */ |
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}; |
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#define DEF_MODEI_NTSC_CONT {FORMAT_NTSC, DEF_SCALE, DEF_COLOR, \ |
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DEF_FDEC, DEF_BRIGHT, DEF_CONTRAST, DEF_SATURATION, \ |
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DEF_HUE, 0, DEF_USB_BLOCK, 0} |
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/* for firmware loading, fw_state */ |
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#define S2255_FW_NOTLOADED 0 |
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#define S2255_FW_LOADED_DSPWAIT 1 |
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#define S2255_FW_SUCCESS 2 |
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#define S2255_FW_FAILED 3 |
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#define S2255_FW_DISCONNECTING 4 |
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#define S2255_FW_MARKER cpu_to_le32(0x22552f2f) |
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/* 2255 read states */ |
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#define S2255_READ_IDLE 0 |
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#define S2255_READ_FRAME 1 |
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struct s2255_fw { |
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int fw_loaded; |
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int fw_size; |
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struct urb *fw_urb; |
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atomic_t fw_state; |
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void *pfw_data; |
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wait_queue_head_t wait_fw; |
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const struct firmware *fw; |
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}; |
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struct s2255_pipeinfo { |
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u32 max_transfer_size; |
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u32 cur_transfer_size; |
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u8 *transfer_buffer; |
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u32 state; |
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void *stream_urb; |
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void *dev; /* back pointer to s2255_dev struct*/ |
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u32 err_count; |
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u32 idx; |
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}; |
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struct s2255_fmt; /*forward declaration */ |
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struct s2255_dev; |
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/* 2255 video channel */ |
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struct s2255_vc { |
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struct s2255_dev *dev; |
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struct video_device vdev; |
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struct v4l2_ctrl_handler hdl; |
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struct v4l2_ctrl *jpegqual_ctrl; |
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int resources; |
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struct list_head buf_list; |
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struct s2255_bufferi buffer; |
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struct s2255_mode mode; |
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v4l2_std_id std; |
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/* jpeg compression */ |
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unsigned jpegqual; |
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/* capture parameters (for high quality mode full size) */ |
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struct v4l2_captureparm cap_parm; |
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int cur_frame; |
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int last_frame; |
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/* allocated image size */ |
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unsigned long req_image_size; |
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/* received packet size */ |
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unsigned long pkt_size; |
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int bad_payload; |
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unsigned long frame_count; |
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/* if JPEG image */ |
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int jpg_size; |
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/* if channel configured to default state */ |
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int configured; |
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wait_queue_head_t wait_setmode; |
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int setmode_ready; |
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/* video status items */ |
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int vidstatus; |
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wait_queue_head_t wait_vidstatus; |
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int vidstatus_ready; |
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unsigned int width; |
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unsigned int height; |
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enum v4l2_field field; |
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const struct s2255_fmt *fmt; |
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int idx; /* channel number on device, 0-3 */ |
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struct vb2_queue vb_vidq; |
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struct mutex vb_lock; /* streaming lock */ |
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spinlock_t qlock; |
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}; |
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struct s2255_dev { |
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struct s2255_vc vc[MAX_CHANNELS]; |
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struct v4l2_device v4l2_dev; |
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atomic_t num_channels; |
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int frames; |
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struct mutex lock; /* channels[].vdev.lock */ |
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struct mutex cmdlock; /* protects cmdbuf */ |
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struct usb_device *udev; |
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struct usb_interface *interface; |
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u8 read_endpoint; |
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struct timer_list timer; |
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struct s2255_fw *fw_data; |
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struct s2255_pipeinfo pipe; |
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u32 cc; /* current channel */ |
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int frame_ready; |
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int chn_ready; |
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/* dsp firmware version (f2255usb.bin) */ |
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int dsp_fw_ver; |
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u16 pid; /* product id */ |
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#define S2255_CMDBUF_SIZE 512 |
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__le32 *cmdbuf; |
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}; |
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static inline struct s2255_dev *to_s2255_dev(struct v4l2_device *v4l2_dev) |
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{ |
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return container_of(v4l2_dev, struct s2255_dev, v4l2_dev); |
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} |
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struct s2255_fmt { |
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u32 fourcc; |
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int depth; |
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}; |
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/* buffer for one video frame */ |
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struct s2255_buffer { |
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/* common v4l buffer stuff -- must be first */ |
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struct vb2_v4l2_buffer vb; |
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struct list_head list; |
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}; |
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/* current cypress EEPROM firmware version */ |
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#define S2255_CUR_USB_FWVER ((3 << 8) | 12) |
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/* current DSP FW version */ |
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#define S2255_CUR_DSP_FWVER 10104 |
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/* Need DSP version 5+ for video status feature */ |
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#define S2255_MIN_DSP_STATUS 5 |
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#define S2255_MIN_DSP_COLORFILTER 8 |
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#define S2255_NORMS (V4L2_STD_ALL) |
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/* private V4L2 controls */ |
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/* |
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* The following chart displays how COLORFILTER should be set |
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* ========================================================= |
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* = fourcc = COLORFILTER = |
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* = =============================== |
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* = = 0 = 1 = |
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* ========================================================= |
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* = V4L2_PIX_FMT_GREY(Y8) = monochrome from = monochrome= |
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* = = s-video or = composite = |
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* = = B/W camera = input = |
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* ========================================================= |
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* = other = color, svideo = color, = |
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* = = = composite = |
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* ========================================================= |
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* |
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* Notes: |
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* channels 0-3 on 2255 are composite |
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* channels 0-1 on 2257 are composite, 2-3 are s-video |
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* If COLORFILTER is 0 with a composite color camera connected, |
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* the output will appear monochrome but hatching |
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* will occur. |
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* COLORFILTER is different from "color killer" and "color effects" |
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* for reasons above. |
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*/ |
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#define S2255_V4L2_YC_ON 1 |
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#define S2255_V4L2_YC_OFF 0 |
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#define V4L2_CID_S2255_COLORFILTER (V4L2_CID_USER_S2255_BASE + 0) |
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/* frame prefix size (sent once every frame) */ |
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#define PREFIX_SIZE 512 |
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/* Channels on box are in reverse order */ |
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static unsigned long G_chnmap[MAX_CHANNELS] = {3, 2, 1, 0}; |
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static int debug; |
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static int s2255_start_readpipe(struct s2255_dev *dev); |
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static void s2255_stop_readpipe(struct s2255_dev *dev); |
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static int s2255_start_acquire(struct s2255_vc *vc); |
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static int s2255_stop_acquire(struct s2255_vc *vc); |
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static void s2255_fillbuff(struct s2255_vc *vc, struct s2255_buffer *buf, |
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int jpgsize); |
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static int s2255_set_mode(struct s2255_vc *vc, struct s2255_mode *mode); |
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static int s2255_board_shutdown(struct s2255_dev *dev); |
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static void s2255_fwload_start(struct s2255_dev *dev); |
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static void s2255_destroy(struct s2255_dev *dev); |
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static long s2255_vendor_req(struct s2255_dev *dev, unsigned char req, |
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u16 index, u16 value, void *buf, |
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s32 buf_len, int bOut); |
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/* dev_err macro with driver name */ |
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#define S2255_DRIVER_NAME "s2255" |
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#define s2255_dev_err(dev, fmt, arg...) \ |
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dev_err(dev, S2255_DRIVER_NAME " - " fmt, ##arg) |
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#define dprintk(dev, level, fmt, arg...) \ |
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v4l2_dbg(level, debug, &dev->v4l2_dev, fmt, ## arg) |
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static struct usb_driver s2255_driver; |
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/* start video number */ |
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static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ |
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/* Enable jpeg capture. */ |
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static int jpeg_enable = 1; |
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module_param(debug, int, 0644); |
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MODULE_PARM_DESC(debug, "Debug level(0-100) default 0"); |
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module_param(video_nr, int, 0644); |
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MODULE_PARM_DESC(video_nr, "start video minor(-1 default autodetect)"); |
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module_param(jpeg_enable, int, 0644); |
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MODULE_PARM_DESC(jpeg_enable, "Jpeg enable(1-on 0-off) default 1"); |
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/* USB device table */ |
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#define USB_SENSORAY_VID 0x1943 |
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static const struct usb_device_id s2255_table[] = { |
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{USB_DEVICE(USB_SENSORAY_VID, 0x2255)}, |
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{USB_DEVICE(USB_SENSORAY_VID, 0x2257)}, /*same family as 2255*/ |
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{ } /* Terminating entry */ |
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}; |
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MODULE_DEVICE_TABLE(usb, s2255_table); |
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#define BUFFER_TIMEOUT msecs_to_jiffies(400) |
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/* image formats. */ |
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/* JPEG formats must be defined last to support jpeg_enable parameter */ |
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static const struct s2255_fmt formats[] = { |
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{ |
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.fourcc = V4L2_PIX_FMT_YUYV, |
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.depth = 16 |
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}, { |
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.fourcc = V4L2_PIX_FMT_UYVY, |
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.depth = 16 |
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}, { |
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.fourcc = V4L2_PIX_FMT_YUV422P, |
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.depth = 16 |
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}, { |
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.fourcc = V4L2_PIX_FMT_GREY, |
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.depth = 8 |
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}, { |
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.fourcc = V4L2_PIX_FMT_JPEG, |
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.depth = 24 |
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}, { |
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.fourcc = V4L2_PIX_FMT_MJPEG, |
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.depth = 24 |
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} |
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}; |
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static int norm_maxw(struct s2255_vc *vc) |
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{ |
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return (vc->std & V4L2_STD_525_60) ? |
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LINE_SZ_4CIFS_NTSC : LINE_SZ_4CIFS_PAL; |
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} |
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static int norm_maxh(struct s2255_vc *vc) |
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{ |
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return (vc->std & V4L2_STD_525_60) ? |
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(NUM_LINES_1CIFS_NTSC * 2) : (NUM_LINES_1CIFS_PAL * 2); |
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} |
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static int norm_minw(struct s2255_vc *vc) |
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{ |
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return (vc->std & V4L2_STD_525_60) ? |
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LINE_SZ_1CIFS_NTSC : LINE_SZ_1CIFS_PAL; |
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} |
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static int norm_minh(struct s2255_vc *vc) |
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{ |
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return (vc->std & V4L2_STD_525_60) ? |
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(NUM_LINES_1CIFS_NTSC) : (NUM_LINES_1CIFS_PAL); |
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} |
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/* |
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* TODO: fixme: move YUV reordering to hardware |
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* converts 2255 planar format to yuyv or uyvy |
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*/ |
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static void planar422p_to_yuv_packed(const unsigned char *in, |
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unsigned char *out, |
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int width, int height, |
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int fmt) |
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{ |
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unsigned char *pY; |
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unsigned char *pCb; |
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unsigned char *pCr; |
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unsigned long size = height * width; |
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unsigned int i; |
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pY = (unsigned char *)in; |
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pCr = (unsigned char *)in + height * width; |
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pCb = (unsigned char *)in + height * width + (height * width / 2); |
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for (i = 0; i < size * 2; i += 4) { |
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out[i] = (fmt == V4L2_PIX_FMT_YUYV) ? *pY++ : *pCr++; |
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out[i + 1] = (fmt == V4L2_PIX_FMT_YUYV) ? *pCr++ : *pY++; |
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out[i + 2] = (fmt == V4L2_PIX_FMT_YUYV) ? *pY++ : *pCb++; |
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out[i + 3] = (fmt == V4L2_PIX_FMT_YUYV) ? *pCb++ : *pY++; |
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} |
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return; |
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} |
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static void s2255_reset_dsppower(struct s2255_dev *dev) |
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{ |
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s2255_vendor_req(dev, 0x40, 0x0000, 0x0001, NULL, 0, 1); |
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msleep(50); |
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s2255_vendor_req(dev, 0x50, 0x0000, 0x0000, NULL, 0, 1); |
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msleep(600); |
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s2255_vendor_req(dev, 0x10, 0x0000, 0x0000, NULL, 0, 1); |
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return; |
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} |
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/* kickstarts the firmware loading. from probe |
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*/ |
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static void s2255_timer(struct timer_list *t) |
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{ |
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struct s2255_dev *dev = from_timer(dev, t, timer); |
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struct s2255_fw *data = dev->fw_data; |
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if (usb_submit_urb(data->fw_urb, GFP_ATOMIC) < 0) { |
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pr_err("s2255: can't submit urb\n"); |
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atomic_set(&data->fw_state, S2255_FW_FAILED); |
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/* wake up anything waiting for the firmware */ |
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wake_up(&data->wait_fw); |
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return; |
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} |
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} |
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|
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/* this loads the firmware asynchronously. |
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Originally this was done synchronously in probe. |
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But it is better to load it asynchronously here than block |
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inside the probe function. Blocking inside probe affects boot time. |
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FW loading is triggered by the timer in the probe function |
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*/ |
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static void s2255_fwchunk_complete(struct urb *urb) |
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{ |
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struct s2255_fw *data = urb->context; |
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struct usb_device *udev = urb->dev; |
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int len; |
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if (urb->status) { |
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dev_err(&udev->dev, "URB failed with status %d\n", urb->status); |
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atomic_set(&data->fw_state, S2255_FW_FAILED); |
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/* wake up anything waiting for the firmware */ |
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wake_up(&data->wait_fw); |
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return; |
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} |
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if (data->fw_urb == NULL) { |
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s2255_dev_err(&udev->dev, "disconnected\n"); |
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atomic_set(&data->fw_state, S2255_FW_FAILED); |
|
/* wake up anything waiting for the firmware */ |
|
wake_up(&data->wait_fw); |
|
return; |
|
} |
|
#define CHUNK_SIZE 512 |
|
/* all USB transfers must be done with continuous kernel memory. |
|
can't allocate more than 128k in current linux kernel, so |
|
upload the firmware in chunks |
|
*/ |
|
if (data->fw_loaded < data->fw_size) { |
|
len = (data->fw_loaded + CHUNK_SIZE) > data->fw_size ? |
|
data->fw_size % CHUNK_SIZE : CHUNK_SIZE; |
|
|
|
if (len < CHUNK_SIZE) |
|
memset(data->pfw_data, 0, CHUNK_SIZE); |
|
|
|
memcpy(data->pfw_data, |
|
(char *) data->fw->data + data->fw_loaded, len); |
|
|
|
usb_fill_bulk_urb(data->fw_urb, udev, usb_sndbulkpipe(udev, 2), |
|
data->pfw_data, CHUNK_SIZE, |
|
s2255_fwchunk_complete, data); |
|
if (usb_submit_urb(data->fw_urb, GFP_ATOMIC) < 0) { |
|
dev_err(&udev->dev, "failed submit URB\n"); |
|
atomic_set(&data->fw_state, S2255_FW_FAILED); |
|
/* wake up anything waiting for the firmware */ |
|
wake_up(&data->wait_fw); |
|
return; |
|
} |
|
data->fw_loaded += len; |
|
} else |
|
atomic_set(&data->fw_state, S2255_FW_LOADED_DSPWAIT); |
|
return; |
|
|
|
} |
|
|
|
static void s2255_got_frame(struct s2255_vc *vc, int jpgsize) |
|
{ |
|
struct s2255_buffer *buf; |
|
struct s2255_dev *dev = to_s2255_dev(vc->vdev.v4l2_dev); |
|
unsigned long flags = 0; |
|
|
|
spin_lock_irqsave(&vc->qlock, flags); |
|
if (list_empty(&vc->buf_list)) { |
|
dprintk(dev, 1, "No active queue to serve\n"); |
|
spin_unlock_irqrestore(&vc->qlock, flags); |
|
return; |
|
} |
|
buf = list_entry(vc->buf_list.next, |
|
struct s2255_buffer, list); |
|
list_del(&buf->list); |
|
buf->vb.vb2_buf.timestamp = ktime_get_ns(); |
|
buf->vb.field = vc->field; |
|
buf->vb.sequence = vc->frame_count; |
|
spin_unlock_irqrestore(&vc->qlock, flags); |
|
|
|
s2255_fillbuff(vc, buf, jpgsize); |
|
/* tell v4l buffer was filled */ |
|
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE); |
|
dprintk(dev, 2, "%s: [buf] [%p]\n", __func__, buf); |
|
} |
|
|
|
static const struct s2255_fmt *format_by_fourcc(int fourcc) |
|
{ |
|
unsigned int i; |
|
for (i = 0; i < ARRAY_SIZE(formats); i++) { |
|
if (-1 == formats[i].fourcc) |
|
continue; |
|
if (!jpeg_enable && ((formats[i].fourcc == V4L2_PIX_FMT_JPEG) || |
|
(formats[i].fourcc == V4L2_PIX_FMT_MJPEG))) |
|
continue; |
|
if (formats[i].fourcc == fourcc) |
|
return formats + i; |
|
} |
|
return NULL; |
|
} |
|
|
|
/* video buffer vmalloc implementation based partly on VIVI driver which is |
|
* Copyright (c) 2006 by |
|
* Mauro Carvalho Chehab <mchehab--a.t--infradead.org> |
|
* Ted Walther <ted--a.t--enumera.com> |
|
* John Sokol <sokol--a.t--videotechnology.com> |
|
* http://v4l.videotechnology.com/ |
|
* |
|
*/ |
|
static void s2255_fillbuff(struct s2255_vc *vc, |
|
struct s2255_buffer *buf, int jpgsize) |
|
{ |
|
int pos = 0; |
|
const char *tmpbuf; |
|
char *vbuf = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); |
|
unsigned long last_frame; |
|
struct s2255_dev *dev = vc->dev; |
|
|
|
if (!vbuf) |
|
return; |
|
last_frame = vc->last_frame; |
|
if (last_frame != -1) { |
|
tmpbuf = |
|
(const char *)vc->buffer.frame[last_frame].lpvbits; |
|
switch (vc->fmt->fourcc) { |
|
case V4L2_PIX_FMT_YUYV: |
|
case V4L2_PIX_FMT_UYVY: |
|
planar422p_to_yuv_packed((const unsigned char *)tmpbuf, |
|
vbuf, vc->width, |
|
vc->height, |
|
vc->fmt->fourcc); |
|
break; |
|
case V4L2_PIX_FMT_GREY: |
|
memcpy(vbuf, tmpbuf, vc->width * vc->height); |
|
break; |
|
case V4L2_PIX_FMT_JPEG: |
|
case V4L2_PIX_FMT_MJPEG: |
|
vb2_set_plane_payload(&buf->vb.vb2_buf, 0, jpgsize); |
|
memcpy(vbuf, tmpbuf, jpgsize); |
|
break; |
|
case V4L2_PIX_FMT_YUV422P: |
|
memcpy(vbuf, tmpbuf, |
|
vc->width * vc->height * 2); |
|
break; |
|
default: |
|
pr_info("s2255: unknown format?\n"); |
|
} |
|
vc->last_frame = -1; |
|
} else { |
|
pr_err("s2255: =======no frame\n"); |
|
return; |
|
} |
|
dprintk(dev, 2, "s2255fill at : Buffer %p size= %d\n", |
|
vbuf, pos); |
|
} |
|
|
|
|
|
/* ------------------------------------------------------------------ |
|
Videobuf operations |
|
------------------------------------------------------------------*/ |
|
|
|
static int queue_setup(struct vb2_queue *vq, |
|
unsigned int *nbuffers, unsigned int *nplanes, |
|
unsigned int sizes[], struct device *alloc_devs[]) |
|
{ |
|
struct s2255_vc *vc = vb2_get_drv_priv(vq); |
|
if (*nbuffers < S2255_MIN_BUFS) |
|
*nbuffers = S2255_MIN_BUFS; |
|
*nplanes = 1; |
|
sizes[0] = vc->width * vc->height * (vc->fmt->depth >> 3); |
|
return 0; |
|
} |
|
|
|
static int buffer_prepare(struct vb2_buffer *vb) |
|
{ |
|
struct s2255_vc *vc = vb2_get_drv_priv(vb->vb2_queue); |
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
|
struct s2255_buffer *buf = container_of(vbuf, struct s2255_buffer, vb); |
|
int w = vc->width; |
|
int h = vc->height; |
|
unsigned long size; |
|
|
|
dprintk(vc->dev, 4, "%s\n", __func__); |
|
if (vc->fmt == NULL) |
|
return -EINVAL; |
|
|
|
if ((w < norm_minw(vc)) || |
|
(w > norm_maxw(vc)) || |
|
(h < norm_minh(vc)) || |
|
(h > norm_maxh(vc))) { |
|
dprintk(vc->dev, 4, "invalid buffer prepare\n"); |
|
return -EINVAL; |
|
} |
|
size = w * h * (vc->fmt->depth >> 3); |
|
if (vb2_plane_size(vb, 0) < size) { |
|
dprintk(vc->dev, 4, "invalid buffer prepare\n"); |
|
return -EINVAL; |
|
} |
|
|
|
vb2_set_plane_payload(&buf->vb.vb2_buf, 0, size); |
|
return 0; |
|
} |
|
|
|
static void buffer_queue(struct vb2_buffer *vb) |
|
{ |
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
|
struct s2255_buffer *buf = container_of(vbuf, struct s2255_buffer, vb); |
|
struct s2255_vc *vc = vb2_get_drv_priv(vb->vb2_queue); |
|
unsigned long flags = 0; |
|
dprintk(vc->dev, 1, "%s\n", __func__); |
|
spin_lock_irqsave(&vc->qlock, flags); |
|
list_add_tail(&buf->list, &vc->buf_list); |
|
spin_unlock_irqrestore(&vc->qlock, flags); |
|
} |
|
|
|
static int start_streaming(struct vb2_queue *vq, unsigned int count); |
|
static void stop_streaming(struct vb2_queue *vq); |
|
|
|
static const struct vb2_ops s2255_video_qops = { |
|
.queue_setup = queue_setup, |
|
.buf_prepare = buffer_prepare, |
|
.buf_queue = buffer_queue, |
|
.start_streaming = start_streaming, |
|
.stop_streaming = stop_streaming, |
|
.wait_prepare = vb2_ops_wait_prepare, |
|
.wait_finish = vb2_ops_wait_finish, |
|
}; |
|
|
|
static int vidioc_querycap(struct file *file, void *priv, |
|
struct v4l2_capability *cap) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
struct s2255_dev *dev = vc->dev; |
|
|
|
strscpy(cap->driver, "s2255", sizeof(cap->driver)); |
|
strscpy(cap->card, "s2255", sizeof(cap->card)); |
|
usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); |
|
return 0; |
|
} |
|
|
|
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, |
|
struct v4l2_fmtdesc *f) |
|
{ |
|
int index = f->index; |
|
|
|
if (index >= ARRAY_SIZE(formats)) |
|
return -EINVAL; |
|
if (!jpeg_enable && ((formats[index].fourcc == V4L2_PIX_FMT_JPEG) || |
|
(formats[index].fourcc == V4L2_PIX_FMT_MJPEG))) |
|
return -EINVAL; |
|
f->pixelformat = formats[index].fourcc; |
|
return 0; |
|
} |
|
|
|
static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, |
|
struct v4l2_format *f) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
int is_ntsc = vc->std & V4L2_STD_525_60; |
|
|
|
f->fmt.pix.width = vc->width; |
|
f->fmt.pix.height = vc->height; |
|
if (f->fmt.pix.height >= |
|
(is_ntsc ? NUM_LINES_1CIFS_NTSC : NUM_LINES_1CIFS_PAL) * 2) |
|
f->fmt.pix.field = V4L2_FIELD_INTERLACED; |
|
else |
|
f->fmt.pix.field = V4L2_FIELD_TOP; |
|
f->fmt.pix.pixelformat = vc->fmt->fourcc; |
|
f->fmt.pix.bytesperline = f->fmt.pix.width * (vc->fmt->depth >> 3); |
|
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
|
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
|
return 0; |
|
} |
|
|
|
static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, |
|
struct v4l2_format *f) |
|
{ |
|
const struct s2255_fmt *fmt; |
|
enum v4l2_field field; |
|
struct s2255_vc *vc = video_drvdata(file); |
|
int is_ntsc = vc->std & V4L2_STD_525_60; |
|
|
|
fmt = format_by_fourcc(f->fmt.pix.pixelformat); |
|
|
|
if (fmt == NULL) |
|
return -EINVAL; |
|
|
|
field = f->fmt.pix.field; |
|
|
|
dprintk(vc->dev, 50, "%s NTSC: %d suggested width: %d, height: %d\n", |
|
__func__, is_ntsc, f->fmt.pix.width, f->fmt.pix.height); |
|
if (is_ntsc) { |
|
/* NTSC */ |
|
if (f->fmt.pix.height >= NUM_LINES_1CIFS_NTSC * 2) { |
|
f->fmt.pix.height = NUM_LINES_1CIFS_NTSC * 2; |
|
field = V4L2_FIELD_INTERLACED; |
|
} else { |
|
f->fmt.pix.height = NUM_LINES_1CIFS_NTSC; |
|
field = V4L2_FIELD_TOP; |
|
} |
|
if (f->fmt.pix.width >= LINE_SZ_4CIFS_NTSC) |
|
f->fmt.pix.width = LINE_SZ_4CIFS_NTSC; |
|
else |
|
f->fmt.pix.width = LINE_SZ_1CIFS_NTSC; |
|
} else { |
|
/* PAL */ |
|
if (f->fmt.pix.height >= NUM_LINES_1CIFS_PAL * 2) { |
|
f->fmt.pix.height = NUM_LINES_1CIFS_PAL * 2; |
|
field = V4L2_FIELD_INTERLACED; |
|
} else { |
|
f->fmt.pix.height = NUM_LINES_1CIFS_PAL; |
|
field = V4L2_FIELD_TOP; |
|
} |
|
if (f->fmt.pix.width >= LINE_SZ_4CIFS_PAL) |
|
f->fmt.pix.width = LINE_SZ_4CIFS_PAL; |
|
else |
|
f->fmt.pix.width = LINE_SZ_1CIFS_PAL; |
|
} |
|
f->fmt.pix.field = field; |
|
f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; |
|
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; |
|
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; |
|
dprintk(vc->dev, 50, "%s: set width %d height %d field %d\n", __func__, |
|
f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field); |
|
return 0; |
|
} |
|
|
|
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, |
|
struct v4l2_format *f) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
const struct s2255_fmt *fmt; |
|
struct vb2_queue *q = &vc->vb_vidq; |
|
struct s2255_mode mode; |
|
int ret; |
|
|
|
ret = vidioc_try_fmt_vid_cap(file, vc, f); |
|
|
|
if (ret < 0) |
|
return ret; |
|
|
|
fmt = format_by_fourcc(f->fmt.pix.pixelformat); |
|
|
|
if (fmt == NULL) |
|
return -EINVAL; |
|
|
|
if (vb2_is_busy(q)) { |
|
dprintk(vc->dev, 1, "queue busy\n"); |
|
return -EBUSY; |
|
} |
|
|
|
mode = vc->mode; |
|
vc->fmt = fmt; |
|
vc->width = f->fmt.pix.width; |
|
vc->height = f->fmt.pix.height; |
|
vc->field = f->fmt.pix.field; |
|
if (vc->width > norm_minw(vc)) { |
|
if (vc->height > norm_minh(vc)) { |
|
if (vc->cap_parm.capturemode & |
|
V4L2_MODE_HIGHQUALITY) |
|
mode.scale = SCALE_4CIFSI; |
|
else |
|
mode.scale = SCALE_4CIFS; |
|
} else |
|
mode.scale = SCALE_2CIFS; |
|
|
|
} else { |
|
mode.scale = SCALE_1CIFS; |
|
} |
|
/* color mode */ |
|
switch (vc->fmt->fourcc) { |
|
case V4L2_PIX_FMT_GREY: |
|
mode.color &= ~MASK_COLOR; |
|
mode.color |= COLOR_Y8; |
|
break; |
|
case V4L2_PIX_FMT_JPEG: |
|
case V4L2_PIX_FMT_MJPEG: |
|
mode.color &= ~MASK_COLOR; |
|
mode.color |= COLOR_JPG; |
|
mode.color |= (vc->jpegqual << 8); |
|
break; |
|
case V4L2_PIX_FMT_YUV422P: |
|
mode.color &= ~MASK_COLOR; |
|
mode.color |= COLOR_YUVPL; |
|
break; |
|
case V4L2_PIX_FMT_YUYV: |
|
case V4L2_PIX_FMT_UYVY: |
|
default: |
|
mode.color &= ~MASK_COLOR; |
|
mode.color |= COLOR_YUVPK; |
|
break; |
|
} |
|
if ((mode.color & MASK_COLOR) != (vc->mode.color & MASK_COLOR)) |
|
mode.restart = 1; |
|
else if (mode.scale != vc->mode.scale) |
|
mode.restart = 1; |
|
else if (mode.format != vc->mode.format) |
|
mode.restart = 1; |
|
vc->mode = mode; |
|
(void) s2255_set_mode(vc, &mode); |
|
return 0; |
|
} |
|
|
|
|
|
/* write to the configuration pipe, synchronously */ |
|
static int s2255_write_config(struct usb_device *udev, unsigned char *pbuf, |
|
int size) |
|
{ |
|
int pipe; |
|
int done; |
|
long retval = -1; |
|
if (udev) { |
|
pipe = usb_sndbulkpipe(udev, S2255_CONFIG_EP); |
|
retval = usb_bulk_msg(udev, pipe, pbuf, size, &done, 500); |
|
} |
|
return retval; |
|
} |
|
|
|
static u32 get_transfer_size(struct s2255_mode *mode) |
|
{ |
|
int linesPerFrame = LINE_SZ_DEF; |
|
int pixelsPerLine = NUM_LINES_DEF; |
|
u32 outImageSize; |
|
u32 usbInSize; |
|
unsigned int mask_mult; |
|
|
|
if (mode == NULL) |
|
return 0; |
|
|
|
if (mode->format == FORMAT_NTSC) { |
|
switch (mode->scale) { |
|
case SCALE_4CIFS: |
|
case SCALE_4CIFSI: |
|
linesPerFrame = NUM_LINES_4CIFS_NTSC * 2; |
|
pixelsPerLine = LINE_SZ_4CIFS_NTSC; |
|
break; |
|
case SCALE_2CIFS: |
|
linesPerFrame = NUM_LINES_2CIFS_NTSC; |
|
pixelsPerLine = LINE_SZ_2CIFS_NTSC; |
|
break; |
|
case SCALE_1CIFS: |
|
linesPerFrame = NUM_LINES_1CIFS_NTSC; |
|
pixelsPerLine = LINE_SZ_1CIFS_NTSC; |
|
break; |
|
default: |
|
break; |
|
} |
|
} else if (mode->format == FORMAT_PAL) { |
|
switch (mode->scale) { |
|
case SCALE_4CIFS: |
|
case SCALE_4CIFSI: |
|
linesPerFrame = NUM_LINES_4CIFS_PAL * 2; |
|
pixelsPerLine = LINE_SZ_4CIFS_PAL; |
|
break; |
|
case SCALE_2CIFS: |
|
linesPerFrame = NUM_LINES_2CIFS_PAL; |
|
pixelsPerLine = LINE_SZ_2CIFS_PAL; |
|
break; |
|
case SCALE_1CIFS: |
|
linesPerFrame = NUM_LINES_1CIFS_PAL; |
|
pixelsPerLine = LINE_SZ_1CIFS_PAL; |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
outImageSize = linesPerFrame * pixelsPerLine; |
|
if ((mode->color & MASK_COLOR) != COLOR_Y8) { |
|
/* 2 bytes/pixel if not monochrome */ |
|
outImageSize *= 2; |
|
} |
|
|
|
/* total bytes to send including prefix and 4K padding; |
|
must be a multiple of USB_READ_SIZE */ |
|
usbInSize = outImageSize + PREFIX_SIZE; /* always send prefix */ |
|
mask_mult = 0xffffffffUL - DEF_USB_BLOCK + 1; |
|
/* if size not a multiple of USB_READ_SIZE */ |
|
if (usbInSize & ~mask_mult) |
|
usbInSize = (usbInSize & mask_mult) + (DEF_USB_BLOCK); |
|
return usbInSize; |
|
} |
|
|
|
static void s2255_print_cfg(struct s2255_dev *sdev, struct s2255_mode *mode) |
|
{ |
|
struct device *dev = &sdev->udev->dev; |
|
dev_info(dev, "------------------------------------------------\n"); |
|
dev_info(dev, "format: %d\nscale %d\n", mode->format, mode->scale); |
|
dev_info(dev, "fdec: %d\ncolor %d\n", mode->fdec, mode->color); |
|
dev_info(dev, "bright: 0x%x\n", mode->bright); |
|
dev_info(dev, "------------------------------------------------\n"); |
|
} |
|
|
|
/* |
|
* set mode is the function which controls the DSP. |
|
* the restart parameter in struct s2255_mode should be set whenever |
|
* the image size could change via color format, video system or image |
|
* size. |
|
* When the restart parameter is set, we sleep for ONE frame to allow the |
|
* DSP time to get the new frame |
|
*/ |
|
static int s2255_set_mode(struct s2255_vc *vc, |
|
struct s2255_mode *mode) |
|
{ |
|
int res; |
|
unsigned long chn_rev; |
|
struct s2255_dev *dev = to_s2255_dev(vc->vdev.v4l2_dev); |
|
int i; |
|
__le32 *buffer = dev->cmdbuf; |
|
|
|
mutex_lock(&dev->cmdlock); |
|
chn_rev = G_chnmap[vc->idx]; |
|
dprintk(dev, 3, "%s channel: %d\n", __func__, vc->idx); |
|
/* if JPEG, set the quality */ |
|
if ((mode->color & MASK_COLOR) == COLOR_JPG) { |
|
mode->color &= ~MASK_COLOR; |
|
mode->color |= COLOR_JPG; |
|
mode->color &= ~MASK_JPG_QUALITY; |
|
mode->color |= (vc->jpegqual << 8); |
|
} |
|
/* save the mode */ |
|
vc->mode = *mode; |
|
vc->req_image_size = get_transfer_size(mode); |
|
dprintk(dev, 1, "%s: reqsize %ld\n", __func__, vc->req_image_size); |
|
/* set the mode */ |
|
buffer[0] = IN_DATA_TOKEN; |
|
buffer[1] = (__le32) cpu_to_le32(chn_rev); |
|
buffer[2] = CMD_SET_MODE; |
|
for (i = 0; i < sizeof(struct s2255_mode) / sizeof(u32); i++) |
|
buffer[3 + i] = cpu_to_le32(((u32 *)&vc->mode)[i]); |
|
vc->setmode_ready = 0; |
|
res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512); |
|
if (debug) |
|
s2255_print_cfg(dev, mode); |
|
/* wait at least 3 frames before continuing */ |
|
if (mode->restart) { |
|
wait_event_timeout(vc->wait_setmode, |
|
(vc->setmode_ready != 0), |
|
msecs_to_jiffies(S2255_SETMODE_TIMEOUT)); |
|
if (vc->setmode_ready != 1) { |
|
dprintk(dev, 0, "s2255: no set mode response\n"); |
|
res = -EFAULT; |
|
} |
|
} |
|
/* clear the restart flag */ |
|
vc->mode.restart = 0; |
|
dprintk(dev, 1, "%s chn %d, result: %d\n", __func__, vc->idx, res); |
|
mutex_unlock(&dev->cmdlock); |
|
return res; |
|
} |
|
|
|
static int s2255_cmd_status(struct s2255_vc *vc, u32 *pstatus) |
|
{ |
|
int res; |
|
u32 chn_rev; |
|
struct s2255_dev *dev = to_s2255_dev(vc->vdev.v4l2_dev); |
|
__le32 *buffer = dev->cmdbuf; |
|
|
|
mutex_lock(&dev->cmdlock); |
|
chn_rev = G_chnmap[vc->idx]; |
|
dprintk(dev, 4, "%s chan %d\n", __func__, vc->idx); |
|
/* form the get vid status command */ |
|
buffer[0] = IN_DATA_TOKEN; |
|
buffer[1] = (__le32) cpu_to_le32(chn_rev); |
|
buffer[2] = CMD_STATUS; |
|
*pstatus = 0; |
|
vc->vidstatus_ready = 0; |
|
res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512); |
|
wait_event_timeout(vc->wait_vidstatus, |
|
(vc->vidstatus_ready != 0), |
|
msecs_to_jiffies(S2255_VIDSTATUS_TIMEOUT)); |
|
if (vc->vidstatus_ready != 1) { |
|
dprintk(dev, 0, "s2255: no vidstatus response\n"); |
|
res = -EFAULT; |
|
} |
|
*pstatus = vc->vidstatus; |
|
dprintk(dev, 4, "%s, vid status %d\n", __func__, *pstatus); |
|
mutex_unlock(&dev->cmdlock); |
|
return res; |
|
} |
|
|
|
static int start_streaming(struct vb2_queue *vq, unsigned int count) |
|
{ |
|
struct s2255_vc *vc = vb2_get_drv_priv(vq); |
|
int j; |
|
|
|
vc->last_frame = -1; |
|
vc->bad_payload = 0; |
|
vc->cur_frame = 0; |
|
vc->frame_count = 0; |
|
for (j = 0; j < SYS_FRAMES; j++) { |
|
vc->buffer.frame[j].ulState = S2255_READ_IDLE; |
|
vc->buffer.frame[j].cur_size = 0; |
|
} |
|
return s2255_start_acquire(vc); |
|
} |
|
|
|
/* abort streaming and wait for last buffer */ |
|
static void stop_streaming(struct vb2_queue *vq) |
|
{ |
|
struct s2255_vc *vc = vb2_get_drv_priv(vq); |
|
struct s2255_buffer *buf, *node; |
|
unsigned long flags; |
|
(void) s2255_stop_acquire(vc); |
|
spin_lock_irqsave(&vc->qlock, flags); |
|
list_for_each_entry_safe(buf, node, &vc->buf_list, list) { |
|
list_del(&buf->list); |
|
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); |
|
dprintk(vc->dev, 2, "[%p/%d] done\n", |
|
buf, buf->vb.vb2_buf.index); |
|
} |
|
spin_unlock_irqrestore(&vc->qlock, flags); |
|
} |
|
|
|
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id i) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
struct s2255_mode mode; |
|
struct vb2_queue *q = &vc->vb_vidq; |
|
|
|
/* |
|
* Changing the standard implies a format change, which is not allowed |
|
* while buffers for use with streaming have already been allocated. |
|
*/ |
|
if (vb2_is_busy(q)) |
|
return -EBUSY; |
|
|
|
mode = vc->mode; |
|
if (i & V4L2_STD_525_60) { |
|
dprintk(vc->dev, 4, "%s 60 Hz\n", __func__); |
|
/* if changing format, reset frame decimation/intervals */ |
|
if (mode.format != FORMAT_NTSC) { |
|
mode.restart = 1; |
|
mode.format = FORMAT_NTSC; |
|
mode.fdec = FDEC_1; |
|
vc->width = LINE_SZ_4CIFS_NTSC; |
|
vc->height = NUM_LINES_4CIFS_NTSC * 2; |
|
} |
|
} else if (i & V4L2_STD_625_50) { |
|
dprintk(vc->dev, 4, "%s 50 Hz\n", __func__); |
|
if (mode.format != FORMAT_PAL) { |
|
mode.restart = 1; |
|
mode.format = FORMAT_PAL; |
|
mode.fdec = FDEC_1; |
|
vc->width = LINE_SZ_4CIFS_PAL; |
|
vc->height = NUM_LINES_4CIFS_PAL * 2; |
|
} |
|
} else |
|
return -EINVAL; |
|
vc->std = i; |
|
if (mode.restart) |
|
s2255_set_mode(vc, &mode); |
|
return 0; |
|
} |
|
|
|
static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *i) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
|
|
*i = vc->std; |
|
return 0; |
|
} |
|
|
|
/* Sensoray 2255 is a multiple channel capture device. |
|
It does not have a "crossbar" of inputs. |
|
We use one V4L device per channel. The user must |
|
be aware that certain combinations are not allowed. |
|
For instance, you cannot do full FPS on more than 2 channels(2 videodevs) |
|
at once in color(you can do full fps on 4 channels with greyscale. |
|
*/ |
|
static int vidioc_enum_input(struct file *file, void *priv, |
|
struct v4l2_input *inp) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
struct s2255_dev *dev = vc->dev; |
|
u32 status = 0; |
|
|
|
if (inp->index != 0) |
|
return -EINVAL; |
|
inp->type = V4L2_INPUT_TYPE_CAMERA; |
|
inp->std = S2255_NORMS; |
|
inp->status = 0; |
|
if (dev->dsp_fw_ver >= S2255_MIN_DSP_STATUS) { |
|
int rc; |
|
rc = s2255_cmd_status(vc, &status); |
|
dprintk(dev, 4, "s2255_cmd_status rc: %d status %x\n", |
|
rc, status); |
|
if (rc == 0) |
|
inp->status = (status & 0x01) ? 0 |
|
: V4L2_IN_ST_NO_SIGNAL; |
|
} |
|
switch (dev->pid) { |
|
case 0x2255: |
|
default: |
|
strscpy(inp->name, "Composite", sizeof(inp->name)); |
|
break; |
|
case 0x2257: |
|
strscpy(inp->name, (vc->idx < 2) ? "Composite" : "S-Video", |
|
sizeof(inp->name)); |
|
break; |
|
} |
|
return 0; |
|
} |
|
|
|
static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) |
|
{ |
|
*i = 0; |
|
return 0; |
|
} |
|
static int vidioc_s_input(struct file *file, void *priv, unsigned int i) |
|
{ |
|
if (i > 0) |
|
return -EINVAL; |
|
return 0; |
|
} |
|
|
|
static int s2255_s_ctrl(struct v4l2_ctrl *ctrl) |
|
{ |
|
struct s2255_vc *vc = |
|
container_of(ctrl->handler, struct s2255_vc, hdl); |
|
struct s2255_mode mode; |
|
mode = vc->mode; |
|
/* update the mode to the corresponding value */ |
|
switch (ctrl->id) { |
|
case V4L2_CID_BRIGHTNESS: |
|
mode.bright = ctrl->val; |
|
break; |
|
case V4L2_CID_CONTRAST: |
|
mode.contrast = ctrl->val; |
|
break; |
|
case V4L2_CID_HUE: |
|
mode.hue = ctrl->val; |
|
break; |
|
case V4L2_CID_SATURATION: |
|
mode.saturation = ctrl->val; |
|
break; |
|
case V4L2_CID_S2255_COLORFILTER: |
|
mode.color &= ~MASK_INPUT_TYPE; |
|
mode.color |= !ctrl->val << 16; |
|
break; |
|
case V4L2_CID_JPEG_COMPRESSION_QUALITY: |
|
vc->jpegqual = ctrl->val; |
|
return 0; |
|
default: |
|
return -EINVAL; |
|
} |
|
mode.restart = 0; |
|
/* set mode here. Note: stream does not need restarted. |
|
some V4L programs restart stream unnecessarily |
|
after a s_crtl. |
|
*/ |
|
s2255_set_mode(vc, &mode); |
|
return 0; |
|
} |
|
|
|
static int vidioc_g_jpegcomp(struct file *file, void *priv, |
|
struct v4l2_jpegcompression *jc) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
|
|
memset(jc, 0, sizeof(*jc)); |
|
jc->quality = vc->jpegqual; |
|
dprintk(vc->dev, 2, "%s: quality %d\n", __func__, jc->quality); |
|
return 0; |
|
} |
|
|
|
static int vidioc_s_jpegcomp(struct file *file, void *priv, |
|
const struct v4l2_jpegcompression *jc) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
|
|
if (jc->quality < 0 || jc->quality > 100) |
|
return -EINVAL; |
|
v4l2_ctrl_s_ctrl(vc->jpegqual_ctrl, jc->quality); |
|
dprintk(vc->dev, 2, "%s: quality %d\n", __func__, jc->quality); |
|
return 0; |
|
} |
|
|
|
static int vidioc_g_parm(struct file *file, void *priv, |
|
struct v4l2_streamparm *sp) |
|
{ |
|
__u32 def_num, def_dem; |
|
struct s2255_vc *vc = video_drvdata(file); |
|
|
|
if (sp->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
|
return -EINVAL; |
|
sp->parm.capture.capability = V4L2_CAP_TIMEPERFRAME; |
|
sp->parm.capture.capturemode = vc->cap_parm.capturemode; |
|
sp->parm.capture.readbuffers = S2255_MIN_BUFS; |
|
def_num = (vc->mode.format == FORMAT_NTSC) ? 1001 : 1000; |
|
def_dem = (vc->mode.format == FORMAT_NTSC) ? 30000 : 25000; |
|
sp->parm.capture.timeperframe.denominator = def_dem; |
|
switch (vc->mode.fdec) { |
|
default: |
|
case FDEC_1: |
|
sp->parm.capture.timeperframe.numerator = def_num; |
|
break; |
|
case FDEC_2: |
|
sp->parm.capture.timeperframe.numerator = def_num * 2; |
|
break; |
|
case FDEC_3: |
|
sp->parm.capture.timeperframe.numerator = def_num * 3; |
|
break; |
|
case FDEC_5: |
|
sp->parm.capture.timeperframe.numerator = def_num * 5; |
|
break; |
|
} |
|
dprintk(vc->dev, 4, "%s capture mode, %d timeperframe %d/%d\n", |
|
__func__, |
|
sp->parm.capture.capturemode, |
|
sp->parm.capture.timeperframe.numerator, |
|
sp->parm.capture.timeperframe.denominator); |
|
return 0; |
|
} |
|
|
|
static int vidioc_s_parm(struct file *file, void *priv, |
|
struct v4l2_streamparm *sp) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
struct s2255_mode mode; |
|
int fdec = FDEC_1; |
|
__u32 def_num, def_dem; |
|
if (sp->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
|
return -EINVAL; |
|
mode = vc->mode; |
|
/* high quality capture mode requires a stream restart */ |
|
if ((vc->cap_parm.capturemode != sp->parm.capture.capturemode) |
|
&& vb2_is_streaming(&vc->vb_vidq)) |
|
return -EBUSY; |
|
def_num = (mode.format == FORMAT_NTSC) ? 1001 : 1000; |
|
def_dem = (mode.format == FORMAT_NTSC) ? 30000 : 25000; |
|
if (def_dem != sp->parm.capture.timeperframe.denominator) |
|
sp->parm.capture.timeperframe.numerator = def_num; |
|
else if (sp->parm.capture.timeperframe.numerator <= def_num) |
|
sp->parm.capture.timeperframe.numerator = def_num; |
|
else if (sp->parm.capture.timeperframe.numerator <= (def_num * 2)) { |
|
sp->parm.capture.timeperframe.numerator = def_num * 2; |
|
fdec = FDEC_2; |
|
} else if (sp->parm.capture.timeperframe.numerator <= (def_num * 3)) { |
|
sp->parm.capture.timeperframe.numerator = def_num * 3; |
|
fdec = FDEC_3; |
|
} else { |
|
sp->parm.capture.timeperframe.numerator = def_num * 5; |
|
fdec = FDEC_5; |
|
} |
|
mode.fdec = fdec; |
|
sp->parm.capture.timeperframe.denominator = def_dem; |
|
sp->parm.capture.readbuffers = S2255_MIN_BUFS; |
|
s2255_set_mode(vc, &mode); |
|
dprintk(vc->dev, 4, "%s capture mode, %d timeperframe %d/%d, fdec %d\n", |
|
__func__, |
|
sp->parm.capture.capturemode, |
|
sp->parm.capture.timeperframe.numerator, |
|
sp->parm.capture.timeperframe.denominator, fdec); |
|
return 0; |
|
} |
|
|
|
#define NUM_SIZE_ENUMS 3 |
|
static const struct v4l2_frmsize_discrete ntsc_sizes[] = { |
|
{ 640, 480 }, |
|
{ 640, 240 }, |
|
{ 320, 240 }, |
|
}; |
|
static const struct v4l2_frmsize_discrete pal_sizes[] = { |
|
{ 704, 576 }, |
|
{ 704, 288 }, |
|
{ 352, 288 }, |
|
}; |
|
|
|
static int vidioc_enum_framesizes(struct file *file, void *priv, |
|
struct v4l2_frmsizeenum *fe) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
int is_ntsc = vc->std & V4L2_STD_525_60; |
|
const struct s2255_fmt *fmt; |
|
|
|
if (fe->index >= NUM_SIZE_ENUMS) |
|
return -EINVAL; |
|
|
|
fmt = format_by_fourcc(fe->pixel_format); |
|
if (fmt == NULL) |
|
return -EINVAL; |
|
fe->type = V4L2_FRMSIZE_TYPE_DISCRETE; |
|
fe->discrete = is_ntsc ? ntsc_sizes[fe->index] : pal_sizes[fe->index]; |
|
return 0; |
|
} |
|
|
|
static int vidioc_enum_frameintervals(struct file *file, void *priv, |
|
struct v4l2_frmivalenum *fe) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
const struct s2255_fmt *fmt; |
|
const struct v4l2_frmsize_discrete *sizes; |
|
int is_ntsc = vc->std & V4L2_STD_525_60; |
|
#define NUM_FRAME_ENUMS 4 |
|
int frm_dec[NUM_FRAME_ENUMS] = {1, 2, 3, 5}; |
|
int i; |
|
|
|
if (fe->index >= NUM_FRAME_ENUMS) |
|
return -EINVAL; |
|
|
|
fmt = format_by_fourcc(fe->pixel_format); |
|
if (fmt == NULL) |
|
return -EINVAL; |
|
|
|
sizes = is_ntsc ? ntsc_sizes : pal_sizes; |
|
for (i = 0; i < NUM_SIZE_ENUMS; i++, sizes++) |
|
if (fe->width == sizes->width && |
|
fe->height == sizes->height) |
|
break; |
|
if (i == NUM_SIZE_ENUMS) |
|
return -EINVAL; |
|
|
|
fe->type = V4L2_FRMIVAL_TYPE_DISCRETE; |
|
fe->discrete.denominator = is_ntsc ? 30000 : 25000; |
|
fe->discrete.numerator = (is_ntsc ? 1001 : 1000) * frm_dec[fe->index]; |
|
dprintk(vc->dev, 4, "%s discrete %d/%d\n", __func__, |
|
fe->discrete.numerator, |
|
fe->discrete.denominator); |
|
return 0; |
|
} |
|
|
|
static int s2255_open(struct file *file) |
|
{ |
|
struct s2255_vc *vc = video_drvdata(file); |
|
struct s2255_dev *dev = vc->dev; |
|
int state; |
|
int rc = 0; |
|
|
|
rc = v4l2_fh_open(file); |
|
if (rc != 0) |
|
return rc; |
|
|
|
dprintk(dev, 1, "s2255: %s\n", __func__); |
|
state = atomic_read(&dev->fw_data->fw_state); |
|
switch (state) { |
|
case S2255_FW_DISCONNECTING: |
|
return -ENODEV; |
|
case S2255_FW_FAILED: |
|
s2255_dev_err(&dev->udev->dev, |
|
"firmware load failed. retrying.\n"); |
|
s2255_fwload_start(dev); |
|
wait_event_timeout(dev->fw_data->wait_fw, |
|
((atomic_read(&dev->fw_data->fw_state) |
|
== S2255_FW_SUCCESS) || |
|
(atomic_read(&dev->fw_data->fw_state) |
|
== S2255_FW_DISCONNECTING)), |
|
msecs_to_jiffies(S2255_LOAD_TIMEOUT)); |
|
/* state may have changed, re-read */ |
|
state = atomic_read(&dev->fw_data->fw_state); |
|
break; |
|
case S2255_FW_NOTLOADED: |
|
case S2255_FW_LOADED_DSPWAIT: |
|
/* give S2255_LOAD_TIMEOUT time for firmware to load in case |
|
driver loaded and then device immediately opened */ |
|
pr_info("%s waiting for firmware load\n", __func__); |
|
wait_event_timeout(dev->fw_data->wait_fw, |
|
((atomic_read(&dev->fw_data->fw_state) |
|
== S2255_FW_SUCCESS) || |
|
(atomic_read(&dev->fw_data->fw_state) |
|
== S2255_FW_DISCONNECTING)), |
|
msecs_to_jiffies(S2255_LOAD_TIMEOUT)); |
|
/* state may have changed, re-read */ |
|
state = atomic_read(&dev->fw_data->fw_state); |
|
break; |
|
case S2255_FW_SUCCESS: |
|
default: |
|
break; |
|
} |
|
/* state may have changed in above switch statement */ |
|
switch (state) { |
|
case S2255_FW_SUCCESS: |
|
break; |
|
case S2255_FW_FAILED: |
|
pr_info("2255 firmware load failed.\n"); |
|
return -ENODEV; |
|
case S2255_FW_DISCONNECTING: |
|
pr_info("%s: disconnecting\n", __func__); |
|
return -ENODEV; |
|
case S2255_FW_LOADED_DSPWAIT: |
|
case S2255_FW_NOTLOADED: |
|
pr_info("%s: firmware not loaded, please retry\n", |
|
__func__); |
|
/* |
|
* Timeout on firmware load means device unusable. |
|
* Set firmware failure state. |
|
* On next s2255_open the firmware will be reloaded. |
|
*/ |
|
atomic_set(&dev->fw_data->fw_state, |
|
S2255_FW_FAILED); |
|
return -EAGAIN; |
|
default: |
|
pr_info("%s: unknown state\n", __func__); |
|
return -EFAULT; |
|
} |
|
if (!vc->configured) { |
|
/* configure channel to default state */ |
|
vc->fmt = &formats[0]; |
|
s2255_set_mode(vc, &vc->mode); |
|
vc->configured = 1; |
|
} |
|
return 0; |
|
} |
|
|
|
static void s2255_destroy(struct s2255_dev *dev) |
|
{ |
|
dprintk(dev, 1, "%s", __func__); |
|
/* board shutdown stops the read pipe if it is running */ |
|
s2255_board_shutdown(dev); |
|
/* make sure firmware still not trying to load */ |
|
del_timer_sync(&dev->timer); /* only started in .probe and .open */ |
|
if (dev->fw_data->fw_urb) { |
|
usb_kill_urb(dev->fw_data->fw_urb); |
|
usb_free_urb(dev->fw_data->fw_urb); |
|
dev->fw_data->fw_urb = NULL; |
|
} |
|
release_firmware(dev->fw_data->fw); |
|
kfree(dev->fw_data->pfw_data); |
|
kfree(dev->fw_data); |
|
/* reset the DSP so firmware can be reloaded next time */ |
|
s2255_reset_dsppower(dev); |
|
mutex_destroy(&dev->lock); |
|
usb_put_dev(dev->udev); |
|
v4l2_device_unregister(&dev->v4l2_dev); |
|
kfree(dev->cmdbuf); |
|
kfree(dev); |
|
} |
|
|
|
static const struct v4l2_file_operations s2255_fops_v4l = { |
|
.owner = THIS_MODULE, |
|
.open = s2255_open, |
|
.release = vb2_fop_release, |
|
.poll = vb2_fop_poll, |
|
.unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */ |
|
.mmap = vb2_fop_mmap, |
|
.read = vb2_fop_read, |
|
}; |
|
|
|
static const struct v4l2_ioctl_ops s2255_ioctl_ops = { |
|
.vidioc_querycap = vidioc_querycap, |
|
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
|
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, |
|
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, |
|
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, |
|
.vidioc_reqbufs = vb2_ioctl_reqbufs, |
|
.vidioc_querybuf = vb2_ioctl_querybuf, |
|
.vidioc_qbuf = vb2_ioctl_qbuf, |
|
.vidioc_dqbuf = vb2_ioctl_dqbuf, |
|
.vidioc_s_std = vidioc_s_std, |
|
.vidioc_g_std = vidioc_g_std, |
|
.vidioc_enum_input = vidioc_enum_input, |
|
.vidioc_g_input = vidioc_g_input, |
|
.vidioc_s_input = vidioc_s_input, |
|
.vidioc_streamon = vb2_ioctl_streamon, |
|
.vidioc_streamoff = vb2_ioctl_streamoff, |
|
.vidioc_s_jpegcomp = vidioc_s_jpegcomp, |
|
.vidioc_g_jpegcomp = vidioc_g_jpegcomp, |
|
.vidioc_s_parm = vidioc_s_parm, |
|
.vidioc_g_parm = vidioc_g_parm, |
|
.vidioc_enum_framesizes = vidioc_enum_framesizes, |
|
.vidioc_enum_frameintervals = vidioc_enum_frameintervals, |
|
.vidioc_log_status = v4l2_ctrl_log_status, |
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event, |
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
|
}; |
|
|
|
static void s2255_video_device_release(struct video_device *vdev) |
|
{ |
|
struct s2255_dev *dev = to_s2255_dev(vdev->v4l2_dev); |
|
struct s2255_vc *vc = |
|
container_of(vdev, struct s2255_vc, vdev); |
|
|
|
dprintk(dev, 4, "%s, chnls: %d\n", __func__, |
|
atomic_read(&dev->num_channels)); |
|
|
|
v4l2_ctrl_handler_free(&vc->hdl); |
|
|
|
if (atomic_dec_and_test(&dev->num_channels)) |
|
s2255_destroy(dev); |
|
return; |
|
} |
|
|
|
static const struct video_device template = { |
|
.name = "s2255v", |
|
.fops = &s2255_fops_v4l, |
|
.ioctl_ops = &s2255_ioctl_ops, |
|
.release = s2255_video_device_release, |
|
.tvnorms = S2255_NORMS, |
|
}; |
|
|
|
static const struct v4l2_ctrl_ops s2255_ctrl_ops = { |
|
.s_ctrl = s2255_s_ctrl, |
|
}; |
|
|
|
static const struct v4l2_ctrl_config color_filter_ctrl = { |
|
.ops = &s2255_ctrl_ops, |
|
.name = "Color Filter", |
|
.id = V4L2_CID_S2255_COLORFILTER, |
|
.type = V4L2_CTRL_TYPE_BOOLEAN, |
|
.max = 1, |
|
.step = 1, |
|
.def = 1, |
|
}; |
|
|
|
static int s2255_probe_v4l(struct s2255_dev *dev) |
|
{ |
|
int ret; |
|
int i; |
|
int cur_nr = video_nr; |
|
struct s2255_vc *vc; |
|
struct vb2_queue *q; |
|
|
|
ret = v4l2_device_register(&dev->interface->dev, &dev->v4l2_dev); |
|
if (ret) |
|
return ret; |
|
/* initialize all video 4 linux */ |
|
/* register 4 video devices */ |
|
for (i = 0; i < MAX_CHANNELS; i++) { |
|
vc = &dev->vc[i]; |
|
INIT_LIST_HEAD(&vc->buf_list); |
|
|
|
v4l2_ctrl_handler_init(&vc->hdl, 6); |
|
v4l2_ctrl_new_std(&vc->hdl, &s2255_ctrl_ops, |
|
V4L2_CID_BRIGHTNESS, -127, 127, 1, DEF_BRIGHT); |
|
v4l2_ctrl_new_std(&vc->hdl, &s2255_ctrl_ops, |
|
V4L2_CID_CONTRAST, 0, 255, 1, DEF_CONTRAST); |
|
v4l2_ctrl_new_std(&vc->hdl, &s2255_ctrl_ops, |
|
V4L2_CID_SATURATION, 0, 255, 1, DEF_SATURATION); |
|
v4l2_ctrl_new_std(&vc->hdl, &s2255_ctrl_ops, |
|
V4L2_CID_HUE, 0, 255, 1, DEF_HUE); |
|
vc->jpegqual_ctrl = v4l2_ctrl_new_std(&vc->hdl, |
|
&s2255_ctrl_ops, |
|
V4L2_CID_JPEG_COMPRESSION_QUALITY, |
|
0, 100, 1, S2255_DEF_JPEG_QUAL); |
|
if (dev->dsp_fw_ver >= S2255_MIN_DSP_COLORFILTER && |
|
(dev->pid != 0x2257 || vc->idx <= 1)) |
|
v4l2_ctrl_new_custom(&vc->hdl, &color_filter_ctrl, |
|
NULL); |
|
if (vc->hdl.error) { |
|
ret = vc->hdl.error; |
|
v4l2_ctrl_handler_free(&vc->hdl); |
|
dev_err(&dev->udev->dev, "couldn't register control\n"); |
|
break; |
|
} |
|
q = &vc->vb_vidq; |
|
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
|
q->io_modes = VB2_MMAP | VB2_READ | VB2_USERPTR; |
|
q->drv_priv = vc; |
|
q->lock = &vc->vb_lock; |
|
q->buf_struct_size = sizeof(struct s2255_buffer); |
|
q->mem_ops = &vb2_vmalloc_memops; |
|
q->ops = &s2255_video_qops; |
|
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
|
ret = vb2_queue_init(q); |
|
if (ret != 0) { |
|
dev_err(&dev->udev->dev, |
|
"%s vb2_queue_init 0x%x\n", __func__, ret); |
|
break; |
|
} |
|
/* register video devices */ |
|
vc->vdev = template; |
|
vc->vdev.queue = q; |
|
vc->vdev.ctrl_handler = &vc->hdl; |
|
vc->vdev.lock = &dev->lock; |
|
vc->vdev.v4l2_dev = &dev->v4l2_dev; |
|
vc->vdev.device_caps = V4L2_CAP_VIDEO_CAPTURE | |
|
V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; |
|
video_set_drvdata(&vc->vdev, vc); |
|
if (video_nr == -1) |
|
ret = video_register_device(&vc->vdev, |
|
VFL_TYPE_VIDEO, |
|
video_nr); |
|
else |
|
ret = video_register_device(&vc->vdev, |
|
VFL_TYPE_VIDEO, |
|
cur_nr + i); |
|
|
|
if (ret) { |
|
dev_err(&dev->udev->dev, |
|
"failed to register video device!\n"); |
|
break; |
|
} |
|
atomic_inc(&dev->num_channels); |
|
v4l2_info(&dev->v4l2_dev, "V4L2 device registered as %s\n", |
|
video_device_node_name(&vc->vdev)); |
|
|
|
} |
|
pr_info("Sensoray 2255 V4L driver Revision: %s\n", |
|
S2255_VERSION); |
|
/* if no channels registered, return error and probe will fail*/ |
|
if (atomic_read(&dev->num_channels) == 0) { |
|
v4l2_device_unregister(&dev->v4l2_dev); |
|
return ret; |
|
} |
|
if (atomic_read(&dev->num_channels) != MAX_CHANNELS) |
|
pr_warn("s2255: Not all channels available.\n"); |
|
return 0; |
|
} |
|
|
|
/* this function moves the usb stream read pipe data |
|
* into the system buffers. |
|
* returns 0 on success, EAGAIN if more data to process( call this |
|
* function again). |
|
* |
|
* Received frame structure: |
|
* bytes 0-3: marker : 0x2255DA4AL (S2255_MARKER_FRAME) |
|
* bytes 4-7: channel: 0-3 |
|
* bytes 8-11: payload size: size of the frame |
|
* bytes 12-payloadsize+12: frame data |
|
*/ |
|
static int save_frame(struct s2255_dev *dev, struct s2255_pipeinfo *pipe_info) |
|
{ |
|
char *pdest; |
|
u32 offset = 0; |
|
int bframe = 0; |
|
char *psrc; |
|
unsigned long copy_size; |
|
unsigned long size; |
|
s32 idx = -1; |
|
struct s2255_framei *frm; |
|
unsigned char *pdata; |
|
struct s2255_vc *vc; |
|
dprintk(dev, 100, "buffer to user\n"); |
|
vc = &dev->vc[dev->cc]; |
|
idx = vc->cur_frame; |
|
frm = &vc->buffer.frame[idx]; |
|
if (frm->ulState == S2255_READ_IDLE) { |
|
int jj; |
|
unsigned int cc; |
|
__le32 *pdword; /*data from dsp is little endian */ |
|
int payload; |
|
/* search for marker codes */ |
|
pdata = (unsigned char *)pipe_info->transfer_buffer; |
|
pdword = (__le32 *)pdata; |
|
for (jj = 0; jj < (pipe_info->cur_transfer_size - 12); jj++) { |
|
switch (*pdword) { |
|
case S2255_MARKER_FRAME: |
|
dprintk(dev, 4, "marker @ offset: %d [%x %x]\n", |
|
jj, pdata[0], pdata[1]); |
|
offset = jj + PREFIX_SIZE; |
|
bframe = 1; |
|
cc = le32_to_cpu(pdword[1]); |
|
if (cc >= MAX_CHANNELS) { |
|
dprintk(dev, 0, |
|
"bad channel\n"); |
|
return -EINVAL; |
|
} |
|
/* reverse it */ |
|
dev->cc = G_chnmap[cc]; |
|
vc = &dev->vc[dev->cc]; |
|
payload = le32_to_cpu(pdword[3]); |
|
if (payload > vc->req_image_size) { |
|
vc->bad_payload++; |
|
/* discard the bad frame */ |
|
return -EINVAL; |
|
} |
|
vc->pkt_size = payload; |
|
vc->jpg_size = le32_to_cpu(pdword[4]); |
|
break; |
|
case S2255_MARKER_RESPONSE: |
|
|
|
pdata += DEF_USB_BLOCK; |
|
jj += DEF_USB_BLOCK; |
|
if (le32_to_cpu(pdword[1]) >= MAX_CHANNELS) |
|
break; |
|
cc = G_chnmap[le32_to_cpu(pdword[1])]; |
|
if (cc >= MAX_CHANNELS) |
|
break; |
|
vc = &dev->vc[cc]; |
|
switch (pdword[2]) { |
|
case S2255_RESPONSE_SETMODE: |
|
/* check if channel valid */ |
|
/* set mode ready */ |
|
vc->setmode_ready = 1; |
|
wake_up(&vc->wait_setmode); |
|
dprintk(dev, 5, "setmode rdy %d\n", cc); |
|
break; |
|
case S2255_RESPONSE_FW: |
|
dev->chn_ready |= (1 << cc); |
|
if ((dev->chn_ready & 0x0f) != 0x0f) |
|
break; |
|
/* all channels ready */ |
|
pr_info("s2255: fw loaded\n"); |
|
atomic_set(&dev->fw_data->fw_state, |
|
S2255_FW_SUCCESS); |
|
wake_up(&dev->fw_data->wait_fw); |
|
break; |
|
case S2255_RESPONSE_STATUS: |
|
vc->vidstatus = le32_to_cpu(pdword[3]); |
|
vc->vidstatus_ready = 1; |
|
wake_up(&vc->wait_vidstatus); |
|
dprintk(dev, 5, "vstat %x chan %d\n", |
|
le32_to_cpu(pdword[3]), cc); |
|
break; |
|
default: |
|
pr_info("s2255 unknown resp\n"); |
|
} |
|
pdata++; |
|
break; |
|
default: |
|
pdata++; |
|
break; |
|
} |
|
if (bframe) |
|
break; |
|
} /* for */ |
|
if (!bframe) |
|
return -EINVAL; |
|
} |
|
vc = &dev->vc[dev->cc]; |
|
idx = vc->cur_frame; |
|
frm = &vc->buffer.frame[idx]; |
|
/* search done. now find out if should be acquiring on this channel */ |
|
if (!vb2_is_streaming(&vc->vb_vidq)) { |
|
/* we found a frame, but this channel is turned off */ |
|
frm->ulState = S2255_READ_IDLE; |
|
return -EINVAL; |
|
} |
|
|
|
if (frm->ulState == S2255_READ_IDLE) { |
|
frm->ulState = S2255_READ_FRAME; |
|
frm->cur_size = 0; |
|
} |
|
|
|
/* skip the marker 512 bytes (and offset if out of sync) */ |
|
psrc = (u8 *)pipe_info->transfer_buffer + offset; |
|
|
|
|
|
if (frm->lpvbits == NULL) { |
|
dprintk(dev, 1, "s2255 frame buffer == NULL.%p %p %d %d", |
|
frm, dev, dev->cc, idx); |
|
return -ENOMEM; |
|
} |
|
|
|
pdest = frm->lpvbits + frm->cur_size; |
|
|
|
copy_size = (pipe_info->cur_transfer_size - offset); |
|
|
|
size = vc->pkt_size - PREFIX_SIZE; |
|
|
|
/* sanity check on pdest */ |
|
if ((copy_size + frm->cur_size) < vc->req_image_size) |
|
memcpy(pdest, psrc, copy_size); |
|
|
|
frm->cur_size += copy_size; |
|
dprintk(dev, 4, "cur_size: %lu, size: %lu\n", frm->cur_size, size); |
|
|
|
if (frm->cur_size >= size) { |
|
dprintk(dev, 2, "******[%d]Buffer[%d]full*******\n", |
|
dev->cc, idx); |
|
vc->last_frame = vc->cur_frame; |
|
vc->cur_frame++; |
|
/* end of system frame ring buffer, start at zero */ |
|
if ((vc->cur_frame == SYS_FRAMES) || |
|
(vc->cur_frame == vc->buffer.dwFrames)) |
|
vc->cur_frame = 0; |
|
/* frame ready */ |
|
if (vb2_is_streaming(&vc->vb_vidq)) |
|
s2255_got_frame(vc, vc->jpg_size); |
|
vc->frame_count++; |
|
frm->ulState = S2255_READ_IDLE; |
|
frm->cur_size = 0; |
|
|
|
} |
|
/* done successfully */ |
|
return 0; |
|
} |
|
|
|
static void s2255_read_video_callback(struct s2255_dev *dev, |
|
struct s2255_pipeinfo *pipe_info) |
|
{ |
|
int res; |
|
dprintk(dev, 50, "callback read video\n"); |
|
|
|
if (dev->cc >= MAX_CHANNELS) { |
|
dev->cc = 0; |
|
dev_err(&dev->udev->dev, "invalid channel\n"); |
|
return; |
|
} |
|
/* otherwise copy to the system buffers */ |
|
res = save_frame(dev, pipe_info); |
|
if (res != 0) |
|
dprintk(dev, 4, "s2255: read callback failed\n"); |
|
|
|
dprintk(dev, 50, "callback read video done\n"); |
|
return; |
|
} |
|
|
|
static long s2255_vendor_req(struct s2255_dev *dev, unsigned char Request, |
|
u16 Index, u16 Value, void *TransferBuffer, |
|
s32 TransferBufferLength, int bOut) |
|
{ |
|
int r; |
|
unsigned char *buf; |
|
|
|
buf = kmalloc(TransferBufferLength, GFP_KERNEL); |
|
if (!buf) |
|
return -ENOMEM; |
|
|
|
if (!bOut) { |
|
r = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), |
|
Request, |
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | |
|
USB_DIR_IN, |
|
Value, Index, buf, |
|
TransferBufferLength, HZ * 5); |
|
|
|
if (r >= 0) |
|
memcpy(TransferBuffer, buf, TransferBufferLength); |
|
} else { |
|
memcpy(buf, TransferBuffer, TransferBufferLength); |
|
r = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), |
|
Request, USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
|
Value, Index, buf, |
|
TransferBufferLength, HZ * 5); |
|
} |
|
kfree(buf); |
|
return r; |
|
} |
|
|
|
/* |
|
* retrieve FX2 firmware version. future use. |
|
* @param dev pointer to device extension |
|
* @return -1 for fail, else returns firmware version as an int(16 bits) |
|
*/ |
|
static int s2255_get_fx2fw(struct s2255_dev *dev) |
|
{ |
|
int fw; |
|
int ret; |
|
unsigned char transBuffer[64]; |
|
ret = s2255_vendor_req(dev, S2255_VR_FW, 0, 0, transBuffer, 2, |
|
S2255_VR_IN); |
|
if (ret < 0) |
|
dprintk(dev, 2, "get fw error: %x\n", ret); |
|
fw = transBuffer[0] + (transBuffer[1] << 8); |
|
dprintk(dev, 2, "Get FW %x %x\n", transBuffer[0], transBuffer[1]); |
|
return fw; |
|
} |
|
|
|
/* |
|
* Create the system ring buffer to copy frames into from the |
|
* usb read pipe. |
|
*/ |
|
static int s2255_create_sys_buffers(struct s2255_vc *vc) |
|
{ |
|
unsigned long i; |
|
unsigned long reqsize; |
|
vc->buffer.dwFrames = SYS_FRAMES; |
|
/* always allocate maximum size(PAL) for system buffers */ |
|
reqsize = SYS_FRAMES_MAXSIZE; |
|
|
|
if (reqsize > SYS_FRAMES_MAXSIZE) |
|
reqsize = SYS_FRAMES_MAXSIZE; |
|
|
|
for (i = 0; i < SYS_FRAMES; i++) { |
|
/* allocate the frames */ |
|
vc->buffer.frame[i].lpvbits = vmalloc(reqsize); |
|
vc->buffer.frame[i].size = reqsize; |
|
if (vc->buffer.frame[i].lpvbits == NULL) { |
|
pr_info("out of memory. using less frames\n"); |
|
vc->buffer.dwFrames = i; |
|
break; |
|
} |
|
} |
|
|
|
/* make sure internal states are set */ |
|
for (i = 0; i < SYS_FRAMES; i++) { |
|
vc->buffer.frame[i].ulState = 0; |
|
vc->buffer.frame[i].cur_size = 0; |
|
} |
|
|
|
vc->cur_frame = 0; |
|
vc->last_frame = -1; |
|
return 0; |
|
} |
|
|
|
static int s2255_release_sys_buffers(struct s2255_vc *vc) |
|
{ |
|
unsigned long i; |
|
for (i = 0; i < SYS_FRAMES; i++) { |
|
vfree(vc->buffer.frame[i].lpvbits); |
|
vc->buffer.frame[i].lpvbits = NULL; |
|
} |
|
return 0; |
|
} |
|
|
|
static int s2255_board_init(struct s2255_dev *dev) |
|
{ |
|
struct s2255_mode mode_def = DEF_MODEI_NTSC_CONT; |
|
int fw_ver; |
|
int j; |
|
struct s2255_pipeinfo *pipe = &dev->pipe; |
|
dprintk(dev, 4, "board init: %p", dev); |
|
memset(pipe, 0, sizeof(*pipe)); |
|
pipe->dev = dev; |
|
pipe->cur_transfer_size = S2255_USB_XFER_SIZE; |
|
pipe->max_transfer_size = S2255_USB_XFER_SIZE; |
|
|
|
pipe->transfer_buffer = kzalloc(pipe->max_transfer_size, |
|
GFP_KERNEL); |
|
if (pipe->transfer_buffer == NULL) { |
|
dprintk(dev, 1, "out of memory!\n"); |
|
return -ENOMEM; |
|
} |
|
/* query the firmware */ |
|
fw_ver = s2255_get_fx2fw(dev); |
|
|
|
pr_info("s2255: usb firmware version %d.%d\n", |
|
(fw_ver >> 8) & 0xff, |
|
fw_ver & 0xff); |
|
|
|
if (fw_ver < S2255_CUR_USB_FWVER) |
|
pr_info("s2255: newer USB firmware available\n"); |
|
|
|
for (j = 0; j < MAX_CHANNELS; j++) { |
|
struct s2255_vc *vc = &dev->vc[j]; |
|
vc->mode = mode_def; |
|
if (dev->pid == 0x2257 && j > 1) |
|
vc->mode.color |= (1 << 16); |
|
vc->jpegqual = S2255_DEF_JPEG_QUAL; |
|
vc->width = LINE_SZ_4CIFS_NTSC; |
|
vc->height = NUM_LINES_4CIFS_NTSC * 2; |
|
vc->std = V4L2_STD_NTSC_M; |
|
vc->fmt = &formats[0]; |
|
vc->mode.restart = 1; |
|
vc->req_image_size = get_transfer_size(&mode_def); |
|
vc->frame_count = 0; |
|
/* create the system buffers */ |
|
s2255_create_sys_buffers(vc); |
|
} |
|
/* start read pipe */ |
|
s2255_start_readpipe(dev); |
|
dprintk(dev, 1, "%s: success\n", __func__); |
|
return 0; |
|
} |
|
|
|
static int s2255_board_shutdown(struct s2255_dev *dev) |
|
{ |
|
u32 i; |
|
dprintk(dev, 1, "%s: dev: %p", __func__, dev); |
|
|
|
for (i = 0; i < MAX_CHANNELS; i++) { |
|
if (vb2_is_streaming(&dev->vc[i].vb_vidq)) |
|
s2255_stop_acquire(&dev->vc[i]); |
|
} |
|
s2255_stop_readpipe(dev); |
|
for (i = 0; i < MAX_CHANNELS; i++) |
|
s2255_release_sys_buffers(&dev->vc[i]); |
|
/* release transfer buffer */ |
|
kfree(dev->pipe.transfer_buffer); |
|
return 0; |
|
} |
|
|
|
static void read_pipe_completion(struct urb *purb) |
|
{ |
|
struct s2255_pipeinfo *pipe_info; |
|
struct s2255_dev *dev; |
|
int status; |
|
int pipe; |
|
pipe_info = purb->context; |
|
if (pipe_info == NULL) { |
|
dev_err(&purb->dev->dev, "no context!\n"); |
|
return; |
|
} |
|
dev = pipe_info->dev; |
|
if (dev == NULL) { |
|
dev_err(&purb->dev->dev, "no context!\n"); |
|
return; |
|
} |
|
status = purb->status; |
|
/* if shutting down, do not resubmit, exit immediately */ |
|
if (status == -ESHUTDOWN) { |
|
dprintk(dev, 2, "%s: err shutdown\n", __func__); |
|
pipe_info->err_count++; |
|
return; |
|
} |
|
|
|
if (pipe_info->state == 0) { |
|
dprintk(dev, 2, "%s: exiting USB pipe", __func__); |
|
return; |
|
} |
|
|
|
if (status == 0) |
|
s2255_read_video_callback(dev, pipe_info); |
|
else { |
|
pipe_info->err_count++; |
|
dprintk(dev, 1, "%s: failed URB %d\n", __func__, status); |
|
} |
|
|
|
pipe = usb_rcvbulkpipe(dev->udev, dev->read_endpoint); |
|
/* reuse urb */ |
|
usb_fill_bulk_urb(pipe_info->stream_urb, dev->udev, |
|
pipe, |
|
pipe_info->transfer_buffer, |
|
pipe_info->cur_transfer_size, |
|
read_pipe_completion, pipe_info); |
|
|
|
if (pipe_info->state != 0) { |
|
if (usb_submit_urb(pipe_info->stream_urb, GFP_ATOMIC)) |
|
dev_err(&dev->udev->dev, "error submitting urb\n"); |
|
} else { |
|
dprintk(dev, 2, "%s :complete state 0\n", __func__); |
|
} |
|
return; |
|
} |
|
|
|
static int s2255_start_readpipe(struct s2255_dev *dev) |
|
{ |
|
int pipe; |
|
int retval; |
|
struct s2255_pipeinfo *pipe_info = &dev->pipe; |
|
pipe = usb_rcvbulkpipe(dev->udev, dev->read_endpoint); |
|
dprintk(dev, 2, "%s: IN %d\n", __func__, dev->read_endpoint); |
|
pipe_info->state = 1; |
|
pipe_info->err_count = 0; |
|
pipe_info->stream_urb = usb_alloc_urb(0, GFP_KERNEL); |
|
if (!pipe_info->stream_urb) |
|
return -ENOMEM; |
|
/* transfer buffer allocated in board_init */ |
|
usb_fill_bulk_urb(pipe_info->stream_urb, dev->udev, |
|
pipe, |
|
pipe_info->transfer_buffer, |
|
pipe_info->cur_transfer_size, |
|
read_pipe_completion, pipe_info); |
|
retval = usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL); |
|
if (retval) { |
|
pr_err("s2255: start read pipe failed\n"); |
|
return retval; |
|
} |
|
return 0; |
|
} |
|
|
|
/* starts acquisition process */ |
|
static int s2255_start_acquire(struct s2255_vc *vc) |
|
{ |
|
int res; |
|
unsigned long chn_rev; |
|
int j; |
|
struct s2255_dev *dev = to_s2255_dev(vc->vdev.v4l2_dev); |
|
__le32 *buffer = dev->cmdbuf; |
|
|
|
mutex_lock(&dev->cmdlock); |
|
chn_rev = G_chnmap[vc->idx]; |
|
vc->last_frame = -1; |
|
vc->bad_payload = 0; |
|
vc->cur_frame = 0; |
|
for (j = 0; j < SYS_FRAMES; j++) { |
|
vc->buffer.frame[j].ulState = 0; |
|
vc->buffer.frame[j].cur_size = 0; |
|
} |
|
|
|
/* send the start command */ |
|
buffer[0] = IN_DATA_TOKEN; |
|
buffer[1] = (__le32) cpu_to_le32(chn_rev); |
|
buffer[2] = CMD_START; |
|
res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512); |
|
if (res != 0) |
|
dev_err(&dev->udev->dev, "CMD_START error\n"); |
|
|
|
dprintk(dev, 2, "start acquire exit[%d] %d\n", vc->idx, res); |
|
mutex_unlock(&dev->cmdlock); |
|
return res; |
|
} |
|
|
|
static int s2255_stop_acquire(struct s2255_vc *vc) |
|
{ |
|
int res; |
|
unsigned long chn_rev; |
|
struct s2255_dev *dev = to_s2255_dev(vc->vdev.v4l2_dev); |
|
__le32 *buffer = dev->cmdbuf; |
|
|
|
mutex_lock(&dev->cmdlock); |
|
chn_rev = G_chnmap[vc->idx]; |
|
/* send the stop command */ |
|
buffer[0] = IN_DATA_TOKEN; |
|
buffer[1] = (__le32) cpu_to_le32(chn_rev); |
|
buffer[2] = CMD_STOP; |
|
|
|
res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512); |
|
if (res != 0) |
|
dev_err(&dev->udev->dev, "CMD_STOP error\n"); |
|
|
|
dprintk(dev, 4, "%s: chn %d, res %d\n", __func__, vc->idx, res); |
|
mutex_unlock(&dev->cmdlock); |
|
return res; |
|
} |
|
|
|
static void s2255_stop_readpipe(struct s2255_dev *dev) |
|
{ |
|
struct s2255_pipeinfo *pipe = &dev->pipe; |
|
|
|
pipe->state = 0; |
|
if (pipe->stream_urb) { |
|
/* cancel urb */ |
|
usb_kill_urb(pipe->stream_urb); |
|
usb_free_urb(pipe->stream_urb); |
|
pipe->stream_urb = NULL; |
|
} |
|
dprintk(dev, 4, "%s", __func__); |
|
return; |
|
} |
|
|
|
static void s2255_fwload_start(struct s2255_dev *dev) |
|
{ |
|
s2255_reset_dsppower(dev); |
|
dev->fw_data->fw_size = dev->fw_data->fw->size; |
|
atomic_set(&dev->fw_data->fw_state, S2255_FW_NOTLOADED); |
|
memcpy(dev->fw_data->pfw_data, |
|
dev->fw_data->fw->data, CHUNK_SIZE); |
|
dev->fw_data->fw_loaded = CHUNK_SIZE; |
|
usb_fill_bulk_urb(dev->fw_data->fw_urb, dev->udev, |
|
usb_sndbulkpipe(dev->udev, 2), |
|
dev->fw_data->pfw_data, |
|
CHUNK_SIZE, s2255_fwchunk_complete, |
|
dev->fw_data); |
|
mod_timer(&dev->timer, jiffies + HZ); |
|
} |
|
|
|
/* standard usb probe function */ |
|
static int s2255_probe(struct usb_interface *interface, |
|
const struct usb_device_id *id) |
|
{ |
|
struct s2255_dev *dev = NULL; |
|
struct usb_host_interface *iface_desc; |
|
struct usb_endpoint_descriptor *endpoint; |
|
int i; |
|
int retval = -ENOMEM; |
|
__le32 *pdata; |
|
int fw_size; |
|
|
|
/* allocate memory for our device state and initialize it to zero */ |
|
dev = kzalloc(sizeof(struct s2255_dev), GFP_KERNEL); |
|
if (dev == NULL) { |
|
s2255_dev_err(&interface->dev, "out of memory\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
dev->cmdbuf = kzalloc(S2255_CMDBUF_SIZE, GFP_KERNEL); |
|
if (dev->cmdbuf == NULL) { |
|
s2255_dev_err(&interface->dev, "out of memory\n"); |
|
goto errorFWDATA1; |
|
} |
|
|
|
atomic_set(&dev->num_channels, 0); |
|
dev->pid = id->idProduct; |
|
dev->fw_data = kzalloc(sizeof(struct s2255_fw), GFP_KERNEL); |
|
if (!dev->fw_data) |
|
goto errorFWDATA1; |
|
mutex_init(&dev->lock); |
|
mutex_init(&dev->cmdlock); |
|
/* grab usb_device and save it */ |
|
dev->udev = usb_get_dev(interface_to_usbdev(interface)); |
|
if (dev->udev == NULL) { |
|
dev_err(&interface->dev, "null usb device\n"); |
|
retval = -ENODEV; |
|
goto errorUDEV; |
|
} |
|
dev_dbg(&interface->dev, "dev: %p, udev %p interface %p\n", |
|
dev, dev->udev, interface); |
|
dev->interface = interface; |
|
/* set up the endpoint information */ |
|
iface_desc = interface->cur_altsetting; |
|
dev_dbg(&interface->dev, "num EP: %d\n", |
|
iface_desc->desc.bNumEndpoints); |
|
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { |
|
endpoint = &iface_desc->endpoint[i].desc; |
|
if (!dev->read_endpoint && usb_endpoint_is_bulk_in(endpoint)) { |
|
/* we found the bulk in endpoint */ |
|
dev->read_endpoint = endpoint->bEndpointAddress; |
|
} |
|
} |
|
|
|
if (!dev->read_endpoint) { |
|
dev_err(&interface->dev, "Could not find bulk-in endpoint\n"); |
|
goto errorEP; |
|
} |
|
timer_setup(&dev->timer, s2255_timer, 0); |
|
init_waitqueue_head(&dev->fw_data->wait_fw); |
|
for (i = 0; i < MAX_CHANNELS; i++) { |
|
struct s2255_vc *vc = &dev->vc[i]; |
|
vc->idx = i; |
|
vc->dev = dev; |
|
init_waitqueue_head(&vc->wait_setmode); |
|
init_waitqueue_head(&vc->wait_vidstatus); |
|
spin_lock_init(&vc->qlock); |
|
mutex_init(&vc->vb_lock); |
|
} |
|
|
|
dev->fw_data->fw_urb = usb_alloc_urb(0, GFP_KERNEL); |
|
if (!dev->fw_data->fw_urb) |
|
goto errorFWURB; |
|
|
|
dev->fw_data->pfw_data = kzalloc(CHUNK_SIZE, GFP_KERNEL); |
|
if (!dev->fw_data->pfw_data) { |
|
dev_err(&interface->dev, "out of memory!\n"); |
|
goto errorFWDATA2; |
|
} |
|
/* load the first chunk */ |
|
if (request_firmware(&dev->fw_data->fw, |
|
FIRMWARE_FILE_NAME, &dev->udev->dev)) { |
|
dev_err(&interface->dev, "sensoray 2255 failed to get firmware\n"); |
|
goto errorREQFW; |
|
} |
|
/* check the firmware is valid */ |
|
fw_size = dev->fw_data->fw->size; |
|
pdata = (__le32 *) &dev->fw_data->fw->data[fw_size - 8]; |
|
|
|
if (*pdata != S2255_FW_MARKER) { |
|
dev_err(&interface->dev, "Firmware invalid.\n"); |
|
retval = -ENODEV; |
|
goto errorFWMARKER; |
|
} else { |
|
/* make sure firmware is the latest */ |
|
__le32 *pRel; |
|
pRel = (__le32 *) &dev->fw_data->fw->data[fw_size - 4]; |
|
pr_info("s2255 dsp fw version %x\n", le32_to_cpu(*pRel)); |
|
dev->dsp_fw_ver = le32_to_cpu(*pRel); |
|
if (dev->dsp_fw_ver < S2255_CUR_DSP_FWVER) |
|
pr_info("s2255: f2255usb.bin out of date.\n"); |
|
if (dev->pid == 0x2257 && |
|
dev->dsp_fw_ver < S2255_MIN_DSP_COLORFILTER) |
|
pr_warn("2257 needs firmware %d or above.\n", |
|
S2255_MIN_DSP_COLORFILTER); |
|
} |
|
usb_reset_device(dev->udev); |
|
/* load 2255 board specific */ |
|
retval = s2255_board_init(dev); |
|
if (retval) |
|
goto errorBOARDINIT; |
|
s2255_fwload_start(dev); |
|
/* loads v4l specific */ |
|
retval = s2255_probe_v4l(dev); |
|
if (retval) |
|
goto errorBOARDINIT; |
|
dev_info(&interface->dev, "Sensoray 2255 detected\n"); |
|
return 0; |
|
errorBOARDINIT: |
|
s2255_board_shutdown(dev); |
|
errorFWMARKER: |
|
release_firmware(dev->fw_data->fw); |
|
errorREQFW: |
|
kfree(dev->fw_data->pfw_data); |
|
errorFWDATA2: |
|
usb_free_urb(dev->fw_data->fw_urb); |
|
errorFWURB: |
|
del_timer_sync(&dev->timer); |
|
errorEP: |
|
usb_put_dev(dev->udev); |
|
errorUDEV: |
|
kfree(dev->fw_data); |
|
mutex_destroy(&dev->lock); |
|
errorFWDATA1: |
|
kfree(dev->cmdbuf); |
|
kfree(dev); |
|
pr_warn("Sensoray 2255 driver load failed: 0x%x\n", retval); |
|
return retval; |
|
} |
|
|
|
/* disconnect routine. when board is removed physically or with rmmod */ |
|
static void s2255_disconnect(struct usb_interface *interface) |
|
{ |
|
struct s2255_dev *dev = to_s2255_dev(usb_get_intfdata(interface)); |
|
int i; |
|
int channels = atomic_read(&dev->num_channels); |
|
mutex_lock(&dev->lock); |
|
v4l2_device_disconnect(&dev->v4l2_dev); |
|
mutex_unlock(&dev->lock); |
|
/*see comments in the uvc_driver.c usb disconnect function */ |
|
atomic_inc(&dev->num_channels); |
|
/* unregister each video device. */ |
|
for (i = 0; i < channels; i++) |
|
video_unregister_device(&dev->vc[i].vdev); |
|
/* wake up any of our timers */ |
|
atomic_set(&dev->fw_data->fw_state, S2255_FW_DISCONNECTING); |
|
wake_up(&dev->fw_data->wait_fw); |
|
for (i = 0; i < MAX_CHANNELS; i++) { |
|
dev->vc[i].setmode_ready = 1; |
|
wake_up(&dev->vc[i].wait_setmode); |
|
dev->vc[i].vidstatus_ready = 1; |
|
wake_up(&dev->vc[i].wait_vidstatus); |
|
} |
|
if (atomic_dec_and_test(&dev->num_channels)) |
|
s2255_destroy(dev); |
|
dev_info(&interface->dev, "%s\n", __func__); |
|
} |
|
|
|
static struct usb_driver s2255_driver = { |
|
.name = S2255_DRIVER_NAME, |
|
.probe = s2255_probe, |
|
.disconnect = s2255_disconnect, |
|
.id_table = s2255_table, |
|
}; |
|
|
|
module_usb_driver(s2255_driver); |
|
|
|
MODULE_DESCRIPTION("Sensoray 2255 Video for Linux driver"); |
|
MODULE_AUTHOR("Dean Anderson (Sensoray Company Inc.)"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_VERSION(S2255_VERSION); |
|
MODULE_FIRMWARE(FIRMWARE_FILE_NAME);
|
|
|