![Hans Verkuil](/assets/img/avatar_default.png)
Introduce a struct v4l2_file_operations for v4l2 drivers. Remove the unnecessary inode argument. Move compat32 handling (and llseek) into the v4l2-dev core: this is now handled in the v4l2 core and no longer in the drivers themselves. Note that this changeset reverts an earlier patch that changed the return type of__video_ioctl2 from int to long. This change will be reinstated later in a much improved version. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2617 lines
68 KiB
C
2617 lines
68 KiB
C
/*
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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) 2007-2008 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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*
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* -full or half size Grey scale: all 4 channels at once
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*
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* -half size, color mode YUYV or YUV422P: all 4 channels at once
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*
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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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* (TODO: Incorporate videodev2 frame rate(FR) enumeration,
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* which is currently experimental.)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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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/videodev2.h>
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#include <linux/version.h>
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#include <linux/mm.h>
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#include <media/videobuf-vmalloc.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-ioctl.h>
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#include <linux/vmalloc.h>
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#include <linux/usb.h>
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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_DEF_BUFS 16
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#define S2255_SETMODE_TIMEOUT 500
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#define MAX_CHANNELS 4
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#define S2255_MARKER_FRAME 0x2255DA4AL
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#define S2255_MARKER_RESPONSE 0x2255ACACL
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#define S2255_USB_XFER_SIZE (16 * 1024)
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#define MAX_CHANNELS 4
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#define MAX_PIPE_BUFFERS 1
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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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#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 0xff
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#define MASK_JPG_QUALITY 0xff00
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/* frame decimation. Not implemented by V4L yet(experimental in V4L) */
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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 0x2255c0de
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#define CMD_2255 0xc2255000
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#define CMD_SET_MODE (CMD_2255 | 0x10)
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#define CMD_START (CMD_2255 | 0x20)
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#define CMD_STOP (CMD_2255 | 0x30)
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#define CMD_STATUS (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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struct s2255_dmaqueue {
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struct list_head active;
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/* thread for acquisition */
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struct task_struct *kthread;
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int frame;
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struct s2255_dev *dev;
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int channel;
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};
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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 transfer_flags;;
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u32 state;
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u32 prev_state;
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u32 urb_size;
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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 buf_index;
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u32 idx;
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u32 priority_set;
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};
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struct s2255_fmt; /*forward declaration */
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struct s2255_dev {
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int frames;
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int users[MAX_CHANNELS];
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struct mutex lock;
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struct mutex open_lock;
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int resources[MAX_CHANNELS];
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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 s2255_dmaqueue vidq[MAX_CHANNELS];
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struct video_device *vdev[MAX_CHANNELS];
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struct list_head s2255_devlist;
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struct timer_list timer;
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struct s2255_fw *fw_data;
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int board_num;
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int is_open;
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struct s2255_pipeinfo pipes[MAX_PIPE_BUFFERS];
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struct s2255_bufferi buffer[MAX_CHANNELS];
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struct s2255_mode mode[MAX_CHANNELS];
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/* jpeg compression */
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struct v4l2_jpegcompression jc[MAX_CHANNELS];
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const struct s2255_fmt *cur_fmt[MAX_CHANNELS];
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int cur_frame[MAX_CHANNELS];
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int last_frame[MAX_CHANNELS];
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u32 cc; /* current channel */
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int b_acquire[MAX_CHANNELS];
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/* allocated image size */
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unsigned long req_image_size[MAX_CHANNELS];
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/* received packet size */
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unsigned long pkt_size[MAX_CHANNELS];
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int bad_payload[MAX_CHANNELS];
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unsigned long frame_count[MAX_CHANNELS];
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int frame_ready;
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/* if JPEG image */
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int jpg_size[MAX_CHANNELS];
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/* if channel configured to default state */
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int chn_configured[MAX_CHANNELS];
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wait_queue_head_t wait_setmode[MAX_CHANNELS];
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int setmode_ready[MAX_CHANNELS];
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int chn_ready;
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struct kref kref;
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spinlock_t slock;
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};
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#define to_s2255_dev(d) container_of(d, struct s2255_dev, kref)
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struct s2255_fmt {
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char *name;
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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 videobuf_buffer vb;
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const struct s2255_fmt *fmt;
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};
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struct s2255_fh {
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struct s2255_dev *dev;
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const struct s2255_fmt *fmt;
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unsigned int width;
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unsigned int height;
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struct videobuf_queue vb_vidq;
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enum v4l2_buf_type type;
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int channel;
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/* mode below is the desired mode.
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mode in s2255_dev is the current mode that was last set */
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struct s2255_mode mode;
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int resources[MAX_CHANNELS];
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};
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#define CUR_USB_FWVER 774 /* current cypress EEPROM firmware version */
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#define S2255_MAJOR_VERSION 1
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#define S2255_MINOR_VERSION 13
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#define S2255_RELEASE 0
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#define S2255_VERSION KERNEL_VERSION(S2255_MAJOR_VERSION, \
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S2255_MINOR_VERSION, \
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S2255_RELEASE)
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/* vendor ids */
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#define USB_S2255_VENDOR_ID 0x1943
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#define USB_S2255_PRODUCT_ID 0x2255
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#define S2255_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC)
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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 LIST_HEAD(s2255_devlist);
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static int debug;
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static int *s2255_debug = &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_dev *dev, unsigned long chn);
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static int s2255_stop_acquire(struct s2255_dev *dev, unsigned long chn);
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static void s2255_fillbuff(struct s2255_dev *dev, struct s2255_buffer *buf,
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int chn, int jpgsize);
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static int s2255_set_mode(struct s2255_dev *dev, unsigned long chn,
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struct s2255_mode *mode);
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static int s2255_board_shutdown(struct s2255_dev *dev);
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static void s2255_exit_v4l(struct s2255_dev *dev);
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static void s2255_fwload_start(struct s2255_dev *dev, int reset);
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static void s2255_destroy(struct kref *kref);
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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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#define dprintk(level, fmt, arg...) \
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do { \
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if (*s2255_debug >= (level)) { \
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printk(KERN_DEBUG "s2255: " fmt, ##arg); \
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} \
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} while (0)
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static struct usb_driver s2255_driver;
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/* Declare static vars that will be used as parameters */
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static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
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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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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(vid_limit, int, 0644);
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MODULE_PARM_DESC(vid_limit, "video memory limit(Mb)");
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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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/* USB device table */
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static struct usb_device_id s2255_table[] = {
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{USB_DEVICE(USB_S2255_VENDOR_ID, USB_S2255_PRODUCT_ID)},
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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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/* supported controls */
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static struct v4l2_queryctrl s2255_qctrl[] = {
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{
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.id = V4L2_CID_BRIGHTNESS,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Brightness",
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.minimum = -127,
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.maximum = 128,
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.step = 1,
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.default_value = 0,
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.flags = 0,
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}, {
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.id = V4L2_CID_CONTRAST,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Contrast",
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.minimum = 0,
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.maximum = 255,
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.step = 0x1,
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.default_value = DEF_CONTRAST,
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.flags = 0,
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}, {
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.id = V4L2_CID_SATURATION,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Saturation",
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.minimum = 0,
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.maximum = 255,
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.step = 0x1,
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.default_value = DEF_SATURATION,
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.flags = 0,
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}, {
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.id = V4L2_CID_HUE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Hue",
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.minimum = 0,
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.maximum = 255,
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.step = 0x1,
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.default_value = DEF_HUE,
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.flags = 0,
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}
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};
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static int qctl_regs[ARRAY_SIZE(s2255_qctrl)];
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/* image formats. */
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static const struct s2255_fmt formats[] = {
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{
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.name = "4:2:2, planar, YUV422P",
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.fourcc = V4L2_PIX_FMT_YUV422P,
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.depth = 16
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}, {
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.name = "4:2:2, packed, YUYV",
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.fourcc = V4L2_PIX_FMT_YUYV,
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.depth = 16
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}, {
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.name = "4:2:2, packed, UYVY",
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.fourcc = V4L2_PIX_FMT_UYVY,
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.depth = 16
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}, {
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.name = "JPG",
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.fourcc = V4L2_PIX_FMT_JPEG,
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.depth = 24
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}, {
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.name = "8bpp GREY",
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.fourcc = V4L2_PIX_FMT_GREY,
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.depth = 8
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}
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};
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static int norm_maxw(struct video_device *vdev)
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{
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return (vdev->current_norm & V4L2_STD_NTSC) ?
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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 video_device *vdev)
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{
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return (vdev->current_norm & V4L2_STD_NTSC) ?
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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 video_device *vdev)
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{
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return (vdev->current_norm & V4L2_STD_NTSC) ?
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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 video_device *vdev)
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{
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return (vdev->current_norm & V4L2_STD_NTSC) ?
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(NUM_LINES_1CIFS_NTSC) : (NUM_LINES_1CIFS_PAL);
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}
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/*
|
|
* TODO: fixme: move YUV reordering to hardware
|
|
* converts 2255 planar format to yuyv or uyvy
|
|
*/
|
|
static void planar422p_to_yuv_packed(const unsigned char *in,
|
|
unsigned char *out,
|
|
int width, int height,
|
|
int fmt)
|
|
{
|
|
unsigned char *pY;
|
|
unsigned char *pCb;
|
|
unsigned char *pCr;
|
|
unsigned long size = height * width;
|
|
unsigned int i;
|
|
pY = (unsigned char *)in;
|
|
pCr = (unsigned char *)in + height * width;
|
|
pCb = (unsigned char *)in + height * width + (height * width / 2);
|
|
for (i = 0; i < size * 2; i += 4) {
|
|
out[i] = (fmt == V4L2_PIX_FMT_YUYV) ? *pY++ : *pCr++;
|
|
out[i + 1] = (fmt == V4L2_PIX_FMT_YUYV) ? *pCr++ : *pY++;
|
|
out[i + 2] = (fmt == V4L2_PIX_FMT_YUYV) ? *pY++ : *pCb++;
|
|
out[i + 3] = (fmt == V4L2_PIX_FMT_YUYV) ? *pCb++ : *pY++;
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void s2255_reset_dsppower(struct s2255_dev *dev)
|
|
{
|
|
s2255_vendor_req(dev, 0x40, 0x0b0b, 0x0b0b, NULL, 0, 1);
|
|
msleep(10);
|
|
s2255_vendor_req(dev, 0x50, 0x0000, 0x0000, NULL, 0, 1);
|
|
return;
|
|
}
|
|
|
|
/* kickstarts the firmware loading. from probe
|
|
*/
|
|
static void s2255_timer(unsigned long user_data)
|
|
{
|
|
struct s2255_fw *data = (struct s2255_fw *)user_data;
|
|
dprintk(100, "s2255 timer\n");
|
|
if (usb_submit_urb(data->fw_urb, GFP_ATOMIC) < 0) {
|
|
printk(KERN_ERR "s2255: can't submit urb\n");
|
|
atomic_set(&data->fw_state, S2255_FW_FAILED);
|
|
/* wake up anything waiting for the firmware */
|
|
wake_up(&data->wait_fw);
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
/* this loads the firmware asynchronously.
|
|
Originally this was done synchroously in probe.
|
|
But it is better to load it asynchronously here than block
|
|
inside the probe function. Blocking inside probe affects boot time.
|
|
FW loading is triggered by the timer in the probe function
|
|
*/
|
|
static void s2255_fwchunk_complete(struct urb *urb)
|
|
{
|
|
struct s2255_fw *data = urb->context;
|
|
struct usb_device *udev = urb->dev;
|
|
int len;
|
|
dprintk(100, "udev %p urb %p", udev, urb);
|
|
if (urb->status) {
|
|
dev_err(&udev->dev, "URB failed with status %d", urb->status);
|
|
atomic_set(&data->fw_state, S2255_FW_FAILED);
|
|
/* wake up anything waiting for the firmware */
|
|
wake_up(&data->wait_fw);
|
|
return;
|
|
}
|
|
if (data->fw_urb == NULL) {
|
|
dev_err(&udev->dev, "s2255 disconnected\n");
|
|
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);
|
|
|
|
dprintk(100, "completed len %d, loaded %d \n", len,
|
|
data->fw_loaded);
|
|
|
|
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);
|
|
}
|
|
dprintk(100, "2255 complete done\n");
|
|
return;
|
|
|
|
}
|
|
|
|
static int s2255_got_frame(struct s2255_dev *dev, int chn, int jpgsize)
|
|
{
|
|
struct s2255_dmaqueue *dma_q = &dev->vidq[chn];
|
|
struct s2255_buffer *buf;
|
|
unsigned long flags = 0;
|
|
int rc = 0;
|
|
dprintk(2, "wakeup: %p channel: %d\n", &dma_q, chn);
|
|
spin_lock_irqsave(&dev->slock, flags);
|
|
|
|
if (list_empty(&dma_q->active)) {
|
|
dprintk(1, "No active queue to serve\n");
|
|
rc = -1;
|
|
goto unlock;
|
|
}
|
|
buf = list_entry(dma_q->active.next,
|
|
struct s2255_buffer, vb.queue);
|
|
|
|
if (!waitqueue_active(&buf->vb.done)) {
|
|
/* no one active */
|
|
rc = -1;
|
|
goto unlock;
|
|
}
|
|
list_del(&buf->vb.queue);
|
|
do_gettimeofday(&buf->vb.ts);
|
|
dprintk(100, "[%p/%d] wakeup\n", buf, buf->vb.i);
|
|
s2255_fillbuff(dev, buf, dma_q->channel, jpgsize);
|
|
wake_up(&buf->vb.done);
|
|
dprintk(2, "wakeup [buf/i] [%p/%d]\n", buf, buf->vb.i);
|
|
unlock:
|
|
spin_unlock_irqrestore(&dev->slock, flags);
|
|
return 0;
|
|
}
|
|
|
|
|
|
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 (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_dev *dev, struct s2255_buffer *buf,
|
|
int chn, int jpgsize)
|
|
{
|
|
int pos = 0;
|
|
struct timeval ts;
|
|
const char *tmpbuf;
|
|
char *vbuf = videobuf_to_vmalloc(&buf->vb);
|
|
unsigned long last_frame;
|
|
struct s2255_framei *frm;
|
|
|
|
if (!vbuf)
|
|
return;
|
|
|
|
last_frame = dev->last_frame[chn];
|
|
if (last_frame != -1) {
|
|
frm = &dev->buffer[chn].frame[last_frame];
|
|
tmpbuf =
|
|
(const char *)dev->buffer[chn].frame[last_frame].lpvbits;
|
|
switch (buf->fmt->fourcc) {
|
|
case V4L2_PIX_FMT_YUYV:
|
|
case V4L2_PIX_FMT_UYVY:
|
|
planar422p_to_yuv_packed((const unsigned char *)tmpbuf,
|
|
vbuf, buf->vb.width,
|
|
buf->vb.height,
|
|
buf->fmt->fourcc);
|
|
break;
|
|
case V4L2_PIX_FMT_GREY:
|
|
memcpy(vbuf, tmpbuf, buf->vb.width * buf->vb.height);
|
|
break;
|
|
case V4L2_PIX_FMT_JPEG:
|
|
buf->vb.size = jpgsize;
|
|
memcpy(vbuf, tmpbuf, buf->vb.size);
|
|
break;
|
|
case V4L2_PIX_FMT_YUV422P:
|
|
memcpy(vbuf, tmpbuf,
|
|
buf->vb.width * buf->vb.height * 2);
|
|
break;
|
|
default:
|
|
printk(KERN_DEBUG "s2255: unknown format?\n");
|
|
}
|
|
dev->last_frame[chn] = -1;
|
|
} else {
|
|
printk(KERN_ERR "s2255: =======no frame\n");
|
|
return;
|
|
|
|
}
|
|
dprintk(2, "s2255fill at : Buffer 0x%08lx size= %d\n",
|
|
(unsigned long)vbuf, pos);
|
|
/* tell v4l buffer was filled */
|
|
|
|
buf->vb.field_count = dev->frame_count[chn] * 2;
|
|
do_gettimeofday(&ts);
|
|
buf->vb.ts = ts;
|
|
buf->vb.state = VIDEOBUF_DONE;
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------
|
|
Videobuf operations
|
|
------------------------------------------------------------------*/
|
|
|
|
static int buffer_setup(struct videobuf_queue *vq, unsigned int *count,
|
|
unsigned int *size)
|
|
{
|
|
struct s2255_fh *fh = vq->priv_data;
|
|
|
|
*size = fh->width * fh->height * (fh->fmt->depth >> 3);
|
|
|
|
if (0 == *count)
|
|
*count = S2255_DEF_BUFS;
|
|
|
|
while (*size * (*count) > vid_limit * 1024 * 1024)
|
|
(*count)--;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void free_buffer(struct videobuf_queue *vq, struct s2255_buffer *buf)
|
|
{
|
|
dprintk(4, "%s\n", __func__);
|
|
|
|
videobuf_waiton(&buf->vb, 0, 0);
|
|
videobuf_vmalloc_free(&buf->vb);
|
|
buf->vb.state = VIDEOBUF_NEEDS_INIT;
|
|
}
|
|
|
|
static int buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
|
|
enum v4l2_field field)
|
|
{
|
|
struct s2255_fh *fh = vq->priv_data;
|
|
struct s2255_buffer *buf = container_of(vb, struct s2255_buffer, vb);
|
|
int rc;
|
|
dprintk(4, "%s, field=%d\n", __func__, field);
|
|
if (fh->fmt == NULL)
|
|
return -EINVAL;
|
|
|
|
if ((fh->width < norm_minw(fh->dev->vdev[fh->channel])) ||
|
|
(fh->width > norm_maxw(fh->dev->vdev[fh->channel])) ||
|
|
(fh->height < norm_minh(fh->dev->vdev[fh->channel])) ||
|
|
(fh->height > norm_maxh(fh->dev->vdev[fh->channel]))) {
|
|
dprintk(4, "invalid buffer prepare\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
buf->vb.size = fh->width * fh->height * (fh->fmt->depth >> 3);
|
|
|
|
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) {
|
|
dprintk(4, "invalid buffer prepare\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
buf->fmt = fh->fmt;
|
|
buf->vb.width = fh->width;
|
|
buf->vb.height = fh->height;
|
|
buf->vb.field = field;
|
|
|
|
|
|
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
|
|
rc = videobuf_iolock(vq, &buf->vb, NULL);
|
|
if (rc < 0)
|
|
goto fail;
|
|
}
|
|
|
|
buf->vb.state = VIDEOBUF_PREPARED;
|
|
return 0;
|
|
fail:
|
|
free_buffer(vq, buf);
|
|
return rc;
|
|
}
|
|
|
|
static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
|
|
{
|
|
struct s2255_buffer *buf = container_of(vb, struct s2255_buffer, vb);
|
|
struct s2255_fh *fh = vq->priv_data;
|
|
struct s2255_dev *dev = fh->dev;
|
|
struct s2255_dmaqueue *vidq = &dev->vidq[fh->channel];
|
|
|
|
dprintk(1, "%s\n", __func__);
|
|
|
|
buf->vb.state = VIDEOBUF_QUEUED;
|
|
list_add_tail(&buf->vb.queue, &vidq->active);
|
|
}
|
|
|
|
static void buffer_release(struct videobuf_queue *vq,
|
|
struct videobuf_buffer *vb)
|
|
{
|
|
struct s2255_buffer *buf = container_of(vb, struct s2255_buffer, vb);
|
|
struct s2255_fh *fh = vq->priv_data;
|
|
dprintk(4, "%s %d\n", __func__, fh->channel);
|
|
free_buffer(vq, buf);
|
|
}
|
|
|
|
static struct videobuf_queue_ops s2255_video_qops = {
|
|
.buf_setup = buffer_setup,
|
|
.buf_prepare = buffer_prepare,
|
|
.buf_queue = buffer_queue,
|
|
.buf_release = buffer_release,
|
|
};
|
|
|
|
|
|
static int res_get(struct s2255_dev *dev, struct s2255_fh *fh)
|
|
{
|
|
/* is it free? */
|
|
mutex_lock(&dev->lock);
|
|
if (dev->resources[fh->channel]) {
|
|
/* no, someone else uses it */
|
|
mutex_unlock(&dev->lock);
|
|
return 0;
|
|
}
|
|
/* it's free, grab it */
|
|
dev->resources[fh->channel] = 1;
|
|
fh->resources[fh->channel] = 1;
|
|
dprintk(1, "s2255: res: get\n");
|
|
mutex_unlock(&dev->lock);
|
|
return 1;
|
|
}
|
|
|
|
static int res_locked(struct s2255_dev *dev, struct s2255_fh *fh)
|
|
{
|
|
return dev->resources[fh->channel];
|
|
}
|
|
|
|
static int res_check(struct s2255_fh *fh)
|
|
{
|
|
return fh->resources[fh->channel];
|
|
}
|
|
|
|
|
|
static void res_free(struct s2255_dev *dev, struct s2255_fh *fh)
|
|
{
|
|
mutex_lock(&dev->lock);
|
|
dev->resources[fh->channel] = 0;
|
|
fh->resources[fh->channel] = 0;
|
|
mutex_unlock(&dev->lock);
|
|
dprintk(1, "res: put\n");
|
|
}
|
|
|
|
|
|
static int vidioc_querycap(struct file *file, void *priv,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
struct s2255_fh *fh = file->private_data;
|
|
struct s2255_dev *dev = fh->dev;
|
|
strlcpy(cap->driver, "s2255", sizeof(cap->driver));
|
|
strlcpy(cap->card, "s2255", sizeof(cap->card));
|
|
strlcpy(cap->bus_info, dev_name(&dev->udev->dev),
|
|
sizeof(cap->bus_info));
|
|
cap->version = S2255_VERSION;
|
|
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_fmtdesc *f)
|
|
{
|
|
int index = 0;
|
|
if (f)
|
|
index = f->index;
|
|
|
|
if (index >= ARRAY_SIZE(formats))
|
|
return -EINVAL;
|
|
|
|
dprintk(4, "name %s\n", formats[index].name);
|
|
strlcpy(f->description, formats[index].name, sizeof(f->description));
|
|
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_fh *fh = priv;
|
|
|
|
f->fmt.pix.width = fh->width;
|
|
f->fmt.pix.height = fh->height;
|
|
f->fmt.pix.field = fh->vb_vidq.field;
|
|
f->fmt.pix.pixelformat = fh->fmt->fourcc;
|
|
f->fmt.pix.bytesperline = f->fmt.pix.width * (fh->fmt->depth >> 3);
|
|
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
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;
|
|
int b_any_field = 0;
|
|
struct s2255_fh *fh = priv;
|
|
struct s2255_dev *dev = fh->dev;
|
|
int is_ntsc;
|
|
|
|
is_ntsc =
|
|
(dev->vdev[fh->channel]->current_norm & V4L2_STD_NTSC) ? 1 : 0;
|
|
|
|
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
|
|
if (fmt == NULL)
|
|
return -EINVAL;
|
|
|
|
field = f->fmt.pix.field;
|
|
if (field == V4L2_FIELD_ANY)
|
|
b_any_field = 1;
|
|
|
|
dprintk(4, "try format %d \n", is_ntsc);
|
|
/* supports 3 sizes. see s2255drv.h */
|
|
dprintk(50, "width test %d, height %d\n",
|
|
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;
|
|
if (b_any_field) {
|
|
field = V4L2_FIELD_SEQ_TB;
|
|
} else if (!((field == V4L2_FIELD_INTERLACED) ||
|
|
(field == V4L2_FIELD_SEQ_TB) ||
|
|
(field == V4L2_FIELD_INTERLACED_TB))) {
|
|
dprintk(1, "unsupported field setting\n");
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
f->fmt.pix.height = NUM_LINES_1CIFS_NTSC;
|
|
if (b_any_field) {
|
|
field = V4L2_FIELD_TOP;
|
|
} else if (!((field == V4L2_FIELD_TOP) ||
|
|
(field == V4L2_FIELD_BOTTOM))) {
|
|
dprintk(1, "unsupported field setting\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
}
|
|
if (f->fmt.pix.width >= LINE_SZ_4CIFS_NTSC)
|
|
f->fmt.pix.width = LINE_SZ_4CIFS_NTSC;
|
|
else if (f->fmt.pix.width >= LINE_SZ_2CIFS_NTSC)
|
|
f->fmt.pix.width = LINE_SZ_2CIFS_NTSC;
|
|
else if (f->fmt.pix.width >= LINE_SZ_1CIFS_NTSC)
|
|
f->fmt.pix.width = LINE_SZ_1CIFS_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;
|
|
if (b_any_field) {
|
|
field = V4L2_FIELD_SEQ_TB;
|
|
} else if (!((field == V4L2_FIELD_INTERLACED) ||
|
|
(field == V4L2_FIELD_SEQ_TB) ||
|
|
(field == V4L2_FIELD_INTERLACED_TB))) {
|
|
dprintk(1, "unsupported field setting\n");
|
|
return -EINVAL;
|
|
}
|
|
} else {
|
|
f->fmt.pix.height = NUM_LINES_1CIFS_PAL;
|
|
if (b_any_field) {
|
|
field = V4L2_FIELD_TOP;
|
|
} else if (!((field == V4L2_FIELD_TOP) ||
|
|
(field == V4L2_FIELD_BOTTOM))) {
|
|
dprintk(1, "unsupported field setting\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
if (f->fmt.pix.width >= LINE_SZ_4CIFS_PAL) {
|
|
dprintk(50, "pal 704\n");
|
|
f->fmt.pix.width = LINE_SZ_4CIFS_PAL;
|
|
field = V4L2_FIELD_SEQ_TB;
|
|
} else if (f->fmt.pix.width >= LINE_SZ_2CIFS_PAL) {
|
|
dprintk(50, "pal 352A\n");
|
|
f->fmt.pix.width = LINE_SZ_2CIFS_PAL;
|
|
field = V4L2_FIELD_TOP;
|
|
} else if (f->fmt.pix.width >= LINE_SZ_1CIFS_PAL) {
|
|
dprintk(50, "pal 352B\n");
|
|
f->fmt.pix.width = LINE_SZ_1CIFS_PAL;
|
|
field = V4L2_FIELD_TOP;
|
|
} else {
|
|
dprintk(50, "pal 352C\n");
|
|
f->fmt.pix.width = LINE_SZ_1CIFS_PAL;
|
|
field = V4L2_FIELD_TOP;
|
|
}
|
|
}
|
|
|
|
dprintk(50, "width %d height %d field %d \n", f->fmt.pix.width,
|
|
f->fmt.pix.height, f->fmt.pix.field);
|
|
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;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
|
|
struct v4l2_format *f)
|
|
{
|
|
struct s2255_fh *fh = priv;
|
|
const struct s2255_fmt *fmt;
|
|
struct videobuf_queue *q = &fh->vb_vidq;
|
|
int ret;
|
|
int norm;
|
|
|
|
ret = vidioc_try_fmt_vid_cap(file, fh, f);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
|
|
if (fmt == NULL)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&q->vb_lock);
|
|
|
|
if (videobuf_queue_is_busy(&fh->vb_vidq)) {
|
|
dprintk(1, "queue busy\n");
|
|
ret = -EBUSY;
|
|
goto out_s_fmt;
|
|
}
|
|
|
|
if (res_locked(fh->dev, fh)) {
|
|
dprintk(1, "can't change format after started\n");
|
|
ret = -EBUSY;
|
|
goto out_s_fmt;
|
|
}
|
|
|
|
fh->fmt = fmt;
|
|
fh->width = f->fmt.pix.width;
|
|
fh->height = f->fmt.pix.height;
|
|
fh->vb_vidq.field = f->fmt.pix.field;
|
|
fh->type = f->type;
|
|
norm = norm_minw(fh->dev->vdev[fh->channel]);
|
|
if (fh->width > norm_minw(fh->dev->vdev[fh->channel])) {
|
|
if (fh->height > norm_minh(fh->dev->vdev[fh->channel]))
|
|
fh->mode.scale = SCALE_4CIFS;
|
|
else
|
|
fh->mode.scale = SCALE_2CIFS;
|
|
|
|
} else {
|
|
fh->mode.scale = SCALE_1CIFS;
|
|
}
|
|
|
|
/* color mode */
|
|
switch (fh->fmt->fourcc) {
|
|
case V4L2_PIX_FMT_GREY:
|
|
fh->mode.color = COLOR_Y8;
|
|
break;
|
|
case V4L2_PIX_FMT_JPEG:
|
|
fh->mode.color = COLOR_JPG |
|
|
(fh->dev->jc[fh->channel].quality << 8);
|
|
break;
|
|
case V4L2_PIX_FMT_YUV422P:
|
|
fh->mode.color = COLOR_YUVPL;
|
|
break;
|
|
case V4L2_PIX_FMT_YUYV:
|
|
case V4L2_PIX_FMT_UYVY:
|
|
default:
|
|
fh->mode.color = COLOR_YUVPK;
|
|
break;
|
|
}
|
|
ret = 0;
|
|
out_s_fmt:
|
|
mutex_unlock(&q->vb_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int vidioc_reqbufs(struct file *file, void *priv,
|
|
struct v4l2_requestbuffers *p)
|
|
{
|
|
int rc;
|
|
struct s2255_fh *fh = priv;
|
|
rc = videobuf_reqbufs(&fh->vb_vidq, p);
|
|
return rc;
|
|
}
|
|
|
|
static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
|
|
{
|
|
int rc;
|
|
struct s2255_fh *fh = priv;
|
|
rc = videobuf_querybuf(&fh->vb_vidq, p);
|
|
return rc;
|
|
}
|
|
|
|
static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
|
|
{
|
|
int rc;
|
|
struct s2255_fh *fh = priv;
|
|
rc = videobuf_qbuf(&fh->vb_vidq, p);
|
|
return rc;
|
|
}
|
|
|
|
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
|
|
{
|
|
int rc;
|
|
struct s2255_fh *fh = priv;
|
|
rc = videobuf_dqbuf(&fh->vb_vidq, p, file->f_flags & O_NONBLOCK);
|
|
return rc;
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
static int vidioc_cgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
|
|
{
|
|
struct s2255_fh *fh = priv;
|
|
|
|
return videobuf_cgmbuf(&fh->vb_vidq, mbuf, 8);
|
|
}
|
|
#endif
|
|
|
|
/* 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:
|
|
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:
|
|
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 dump_verify_mode(struct s2255_dev *sdev, struct s2255_mode *mode)
|
|
{
|
|
struct device *dev = &sdev->udev->dev;
|
|
dev_info(dev, "------------------------------------------------\n");
|
|
dev_info(dev, "verify mode\n");
|
|
dev_info(dev, "format: %d\n", mode->format);
|
|
dev_info(dev, "scale: %d\n", mode->scale);
|
|
dev_info(dev, "fdec: %d\n", mode->fdec);
|
|
dev_info(dev, "color: %d\n", mode->color);
|
|
dev_info(dev, "bright: 0x%x\n", mode->bright);
|
|
dev_info(dev, "restart: 0x%x\n", mode->restart);
|
|
dev_info(dev, "usb_block: 0x%x\n", mode->usb_block);
|
|
dev_info(dev, "single: 0x%x\n", mode->single);
|
|
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_dev *dev, unsigned long chn,
|
|
struct s2255_mode *mode)
|
|
{
|
|
int res;
|
|
u32 *buffer;
|
|
unsigned long chn_rev;
|
|
|
|
mutex_lock(&dev->lock);
|
|
chn_rev = G_chnmap[chn];
|
|
dprintk(3, "mode scale [%ld] %p %d\n", chn, mode, mode->scale);
|
|
dprintk(3, "mode scale [%ld] %p %d\n", chn, &dev->mode[chn],
|
|
dev->mode[chn].scale);
|
|
dprintk(2, "mode contrast %x\n", mode->contrast);
|
|
|
|
/* if JPEG, set the quality */
|
|
if ((mode->color & MASK_COLOR) == COLOR_JPG)
|
|
mode->color = (dev->jc[chn].quality << 8) | COLOR_JPG;
|
|
|
|
/* save the mode */
|
|
dev->mode[chn] = *mode;
|
|
dev->req_image_size[chn] = get_transfer_size(mode);
|
|
dprintk(1, "transfer size %ld\n", dev->req_image_size[chn]);
|
|
|
|
buffer = kzalloc(512, GFP_KERNEL);
|
|
if (buffer == NULL) {
|
|
dev_err(&dev->udev->dev, "out of mem\n");
|
|
mutex_unlock(&dev->lock);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* set the mode */
|
|
buffer[0] = IN_DATA_TOKEN;
|
|
buffer[1] = (u32) chn_rev;
|
|
buffer[2] = CMD_SET_MODE;
|
|
memcpy(&buffer[3], &dev->mode[chn], sizeof(struct s2255_mode));
|
|
res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512);
|
|
if (debug)
|
|
dump_verify_mode(dev, mode);
|
|
kfree(buffer);
|
|
dprintk(1, "set mode done chn %lu, %d\n", chn, res);
|
|
|
|
/* wait at least 3 frames before continuing */
|
|
if (mode->restart) {
|
|
dev->setmode_ready[chn] = 0;
|
|
wait_event_timeout(dev->wait_setmode[chn],
|
|
(dev->setmode_ready[chn] != 0),
|
|
msecs_to_jiffies(S2255_SETMODE_TIMEOUT));
|
|
if (dev->setmode_ready[chn] != 1) {
|
|
printk(KERN_DEBUG "s2255: no set mode response\n");
|
|
res = -EFAULT;
|
|
}
|
|
}
|
|
|
|
/* clear the restart flag */
|
|
dev->mode[chn].restart = 0;
|
|
mutex_unlock(&dev->lock);
|
|
return res;
|
|
}
|
|
|
|
static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
|
|
{
|
|
int res;
|
|
struct s2255_fh *fh = priv;
|
|
struct s2255_dev *dev = fh->dev;
|
|
struct s2255_mode *new_mode;
|
|
struct s2255_mode *old_mode;
|
|
int chn;
|
|
int j;
|
|
dprintk(4, "%s\n", __func__);
|
|
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
dev_err(&dev->udev->dev, "invalid fh type0\n");
|
|
return -EINVAL;
|
|
}
|
|
if (i != fh->type) {
|
|
dev_err(&dev->udev->dev, "invalid fh type1\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!res_get(dev, fh)) {
|
|
dev_err(&dev->udev->dev, "s2255: stream busy\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
/* send a set mode command everytime with restart.
|
|
in case we switch resolutions or other parameters */
|
|
chn = fh->channel;
|
|
new_mode = &fh->mode;
|
|
old_mode = &fh->dev->mode[chn];
|
|
|
|
if (new_mode->color != old_mode->color)
|
|
new_mode->restart = 1;
|
|
else if (new_mode->scale != old_mode->scale)
|
|
new_mode->restart = 1;
|
|
else if (new_mode->format != old_mode->format)
|
|
new_mode->restart = 1;
|
|
|
|
s2255_set_mode(dev, chn, new_mode);
|
|
new_mode->restart = 0;
|
|
*old_mode = *new_mode;
|
|
dev->cur_fmt[chn] = fh->fmt;
|
|
dprintk(1, "%s[%d]\n", __func__, chn);
|
|
dev->last_frame[chn] = -1;
|
|
dev->bad_payload[chn] = 0;
|
|
dev->cur_frame[chn] = 0;
|
|
dev->frame_count[chn] = 0;
|
|
for (j = 0; j < SYS_FRAMES; j++) {
|
|
dev->buffer[chn].frame[j].ulState = S2255_READ_IDLE;
|
|
dev->buffer[chn].frame[j].cur_size = 0;
|
|
}
|
|
res = videobuf_streamon(&fh->vb_vidq);
|
|
if (res == 0) {
|
|
s2255_start_acquire(dev, chn);
|
|
dev->b_acquire[chn] = 1;
|
|
} else {
|
|
res_free(dev, fh);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
|
|
{
|
|
int res;
|
|
struct s2255_fh *fh = priv;
|
|
struct s2255_dev *dev = fh->dev;
|
|
|
|
dprintk(4, "%s\n, channel: %d", __func__, fh->channel);
|
|
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
|
|
printk(KERN_ERR "invalid fh type0\n");
|
|
return -EINVAL;
|
|
}
|
|
if (i != fh->type) {
|
|
printk(KERN_ERR "invalid type i\n");
|
|
return -EINVAL;
|
|
}
|
|
s2255_stop_acquire(dev, fh->channel);
|
|
res = videobuf_streamoff(&fh->vb_vidq);
|
|
if (res < 0)
|
|
return res;
|
|
res_free(dev, fh);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *i)
|
|
{
|
|
struct s2255_fh *fh = priv;
|
|
struct s2255_mode *mode;
|
|
struct videobuf_queue *q = &fh->vb_vidq;
|
|
int ret = 0;
|
|
|
|
mutex_lock(&q->vb_lock);
|
|
if (videobuf_queue_is_busy(q)) {
|
|
dprintk(1, "queue busy\n");
|
|
ret = -EBUSY;
|
|
goto out_s_std;
|
|
}
|
|
|
|
if (res_locked(fh->dev, fh)) {
|
|
dprintk(1, "can't change standard after started\n");
|
|
ret = -EBUSY;
|
|
goto out_s_std;
|
|
}
|
|
mode = &fh->mode;
|
|
|
|
if (*i & V4L2_STD_NTSC) {
|
|
dprintk(4, "vidioc_s_std NTSC\n");
|
|
mode->format = FORMAT_NTSC;
|
|
} else if (*i & V4L2_STD_PAL) {
|
|
dprintk(4, "vidioc_s_std PAL\n");
|
|
mode->format = FORMAT_PAL;
|
|
} else {
|
|
ret = -EINVAL;
|
|
}
|
|
out_s_std:
|
|
mutex_unlock(&q->vb_lock);
|
|
return ret;
|
|
}
|
|
|
|
/* 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)
|
|
{
|
|
if (inp->index != 0)
|
|
return -EINVAL;
|
|
|
|
inp->type = V4L2_INPUT_TYPE_CAMERA;
|
|
inp->std = S2255_NORMS;
|
|
strlcpy(inp->name, "Camera", sizeof(inp->name));
|
|
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;
|
|
}
|
|
|
|
/* --- controls ---------------------------------------------- */
|
|
static int vidioc_queryctrl(struct file *file, void *priv,
|
|
struct v4l2_queryctrl *qc)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(s2255_qctrl); i++)
|
|
if (qc->id && qc->id == s2255_qctrl[i].id) {
|
|
memcpy(qc, &(s2255_qctrl[i]), sizeof(*qc));
|
|
return 0;
|
|
}
|
|
|
|
dprintk(4, "query_ctrl -EINVAL %d\n", qc->id);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int vidioc_g_ctrl(struct file *file, void *priv,
|
|
struct v4l2_control *ctrl)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(s2255_qctrl); i++)
|
|
if (ctrl->id == s2255_qctrl[i].id) {
|
|
ctrl->value = qctl_regs[i];
|
|
return 0;
|
|
}
|
|
dprintk(4, "g_ctrl -EINVAL\n");
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int vidioc_s_ctrl(struct file *file, void *priv,
|
|
struct v4l2_control *ctrl)
|
|
{
|
|
int i;
|
|
struct s2255_fh *fh = priv;
|
|
struct s2255_dev *dev = fh->dev;
|
|
struct s2255_mode *mode;
|
|
mode = &fh->mode;
|
|
dprintk(4, "vidioc_s_ctrl\n");
|
|
for (i = 0; i < ARRAY_SIZE(s2255_qctrl); i++) {
|
|
if (ctrl->id == s2255_qctrl[i].id) {
|
|
if (ctrl->value < s2255_qctrl[i].minimum ||
|
|
ctrl->value > s2255_qctrl[i].maximum)
|
|
return -ERANGE;
|
|
|
|
qctl_regs[i] = ctrl->value;
|
|
/* update the mode to the corresponding value */
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
mode->bright = ctrl->value;
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
mode->contrast = ctrl->value;
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
mode->hue = ctrl->value;
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
mode->saturation = ctrl->value;
|
|
break;
|
|
}
|
|
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(dev, fh->channel, mode);
|
|
return 0;
|
|
}
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int vidioc_g_jpegcomp(struct file *file, void *priv,
|
|
struct v4l2_jpegcompression *jc)
|
|
{
|
|
struct s2255_fh *fh = priv;
|
|
struct s2255_dev *dev = fh->dev;
|
|
*jc = dev->jc[fh->channel];
|
|
dprintk(2, "getting jpegcompression, quality %d\n", jc->quality);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_jpegcomp(struct file *file, void *priv,
|
|
struct v4l2_jpegcompression *jc)
|
|
{
|
|
struct s2255_fh *fh = priv;
|
|
struct s2255_dev *dev = fh->dev;
|
|
if (jc->quality < 0 || jc->quality > 100)
|
|
return -EINVAL;
|
|
dev->jc[fh->channel].quality = jc->quality;
|
|
dprintk(2, "setting jpeg quality %d\n", jc->quality);
|
|
return 0;
|
|
}
|
|
static int s2255_open(struct file *file)
|
|
{
|
|
int minor = video_devdata(file)->minor;
|
|
struct s2255_dev *h, *dev = NULL;
|
|
struct s2255_fh *fh;
|
|
struct list_head *list;
|
|
enum v4l2_buf_type type = 0;
|
|
int i = 0;
|
|
int cur_channel = -1;
|
|
int state;
|
|
dprintk(1, "s2255: open called (minor=%d)\n", minor);
|
|
|
|
lock_kernel();
|
|
list_for_each(list, &s2255_devlist) {
|
|
h = list_entry(list, struct s2255_dev, s2255_devlist);
|
|
for (i = 0; i < MAX_CHANNELS; i++) {
|
|
if (h->vdev[i]->minor == minor) {
|
|
cur_channel = i;
|
|
dev = h;
|
|
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((NULL == dev) || (cur_channel == -1)) {
|
|
unlock_kernel();
|
|
printk(KERN_INFO "s2255: openv4l no dev\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (atomic_read(&dev->fw_data->fw_state) == S2255_FW_DISCONNECTING) {
|
|
unlock_kernel();
|
|
printk(KERN_INFO "disconnecting\n");
|
|
return -ENODEV;
|
|
}
|
|
kref_get(&dev->kref);
|
|
mutex_lock(&dev->open_lock);
|
|
|
|
dev->users[cur_channel]++;
|
|
dprintk(4, "s2255: open_handles %d\n", dev->users[cur_channel]);
|
|
|
|
switch (atomic_read(&dev->fw_data->fw_state)) {
|
|
case S2255_FW_FAILED:
|
|
err("2255 firmware load failed. retrying.\n");
|
|
s2255_fwload_start(dev, 1);
|
|
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));
|
|
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 */
|
|
printk(KERN_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));
|
|
break;
|
|
case S2255_FW_SUCCESS:
|
|
default:
|
|
break;
|
|
}
|
|
state = atomic_read(&dev->fw_data->fw_state);
|
|
if (state != S2255_FW_SUCCESS) {
|
|
int rc;
|
|
switch (state) {
|
|
case S2255_FW_FAILED:
|
|
printk(KERN_INFO "2255 FW load failed. %d\n", state);
|
|
rc = -ENODEV;
|
|
break;
|
|
case S2255_FW_DISCONNECTING:
|
|
printk(KERN_INFO "%s: disconnecting\n", __func__);
|
|
rc = -ENODEV;
|
|
break;
|
|
case S2255_FW_LOADED_DSPWAIT:
|
|
case S2255_FW_NOTLOADED:
|
|
printk(KERN_INFO "%s: firmware not loaded yet"
|
|
"please try again later\n",
|
|
__func__);
|
|
rc = -EAGAIN;
|
|
break;
|
|
default:
|
|
printk(KERN_INFO "%s: unknown state\n", __func__);
|
|
rc = -EFAULT;
|
|
break;
|
|
}
|
|
dev->users[cur_channel]--;
|
|
mutex_unlock(&dev->open_lock);
|
|
kref_put(&dev->kref, s2255_destroy);
|
|
unlock_kernel();
|
|
return rc;
|
|
}
|
|
|
|
/* allocate + initialize per filehandle data */
|
|
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
|
|
if (NULL == fh) {
|
|
dev->users[cur_channel]--;
|
|
mutex_unlock(&dev->open_lock);
|
|
kref_put(&dev->kref, s2255_destroy);
|
|
unlock_kernel();
|
|
return -ENOMEM;
|
|
}
|
|
|
|
file->private_data = fh;
|
|
fh->dev = dev;
|
|
fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
fh->mode = dev->mode[cur_channel];
|
|
fh->fmt = dev->cur_fmt[cur_channel];
|
|
/* default 4CIF NTSC */
|
|
fh->width = LINE_SZ_4CIFS_NTSC;
|
|
fh->height = NUM_LINES_4CIFS_NTSC * 2;
|
|
fh->channel = cur_channel;
|
|
|
|
/* configure channel to default state */
|
|
if (!dev->chn_configured[cur_channel]) {
|
|
s2255_set_mode(dev, cur_channel, &fh->mode);
|
|
dev->chn_configured[cur_channel] = 1;
|
|
}
|
|
|
|
|
|
/* Put all controls at a sane state */
|
|
for (i = 0; i < ARRAY_SIZE(s2255_qctrl); i++)
|
|
qctl_regs[i] = s2255_qctrl[i].default_value;
|
|
|
|
dprintk(1, "s2255drv: open minor=%d type=%s users=%d\n",
|
|
minor, v4l2_type_names[type], dev->users[cur_channel]);
|
|
dprintk(2, "s2255drv: open: fh=0x%08lx, dev=0x%08lx, vidq=0x%08lx\n",
|
|
(unsigned long)fh, (unsigned long)dev,
|
|
(unsigned long)&dev->vidq[cur_channel]);
|
|
dprintk(4, "s2255drv: open: list_empty active=%d\n",
|
|
list_empty(&dev->vidq[cur_channel].active));
|
|
|
|
videobuf_queue_vmalloc_init(&fh->vb_vidq, &s2255_video_qops,
|
|
NULL, &dev->slock,
|
|
fh->type,
|
|
V4L2_FIELD_INTERLACED,
|
|
sizeof(struct s2255_buffer), fh);
|
|
|
|
mutex_unlock(&dev->open_lock);
|
|
unlock_kernel();
|
|
return 0;
|
|
}
|
|
|
|
|
|
static unsigned int s2255_poll(struct file *file,
|
|
struct poll_table_struct *wait)
|
|
{
|
|
struct s2255_fh *fh = file->private_data;
|
|
int rc;
|
|
dprintk(100, "%s\n", __func__);
|
|
|
|
if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
|
|
return POLLERR;
|
|
|
|
rc = videobuf_poll_stream(file, &fh->vb_vidq, wait);
|
|
return rc;
|
|
}
|
|
|
|
static void s2255_destroy(struct kref *kref)
|
|
{
|
|
struct s2255_dev *dev = to_s2255_dev(kref);
|
|
struct list_head *list;
|
|
int i;
|
|
if (!dev) {
|
|
printk(KERN_ERR "s2255drv: kref problem\n");
|
|
return;
|
|
}
|
|
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->setmode_ready[i] = 1;
|
|
wake_up(&dev->wait_setmode[i]);
|
|
}
|
|
mutex_lock(&dev->open_lock);
|
|
/* reset the DSP so firmware can be reload next time */
|
|
s2255_reset_dsppower(dev);
|
|
s2255_exit_v4l(dev);
|
|
/* board shutdown stops the read pipe if it is running */
|
|
s2255_board_shutdown(dev);
|
|
/* make sure firmware still not trying to load */
|
|
del_timer(&dev->timer); /* only started in .probe and .open */
|
|
|
|
if (dev->fw_data->fw_urb) {
|
|
dprintk(2, "kill fw_urb\n");
|
|
usb_kill_urb(dev->fw_data->fw_urb);
|
|
usb_free_urb(dev->fw_data->fw_urb);
|
|
dev->fw_data->fw_urb = NULL;
|
|
}
|
|
if (dev->fw_data->fw)
|
|
release_firmware(dev->fw_data->fw);
|
|
kfree(dev->fw_data->pfw_data);
|
|
kfree(dev->fw_data);
|
|
usb_put_dev(dev->udev);
|
|
dprintk(1, "%s", __func__);
|
|
kfree(dev);
|
|
|
|
while (!list_empty(&s2255_devlist)) {
|
|
list = s2255_devlist.next;
|
|
list_del(list);
|
|
}
|
|
mutex_unlock(&dev->open_lock);
|
|
}
|
|
|
|
static int s2255_close(struct file *file)
|
|
{
|
|
struct s2255_fh *fh = file->private_data;
|
|
struct s2255_dev *dev = fh->dev;
|
|
int minor = video_devdata(file)->minor;
|
|
if (!dev)
|
|
return -ENODEV;
|
|
|
|
mutex_lock(&dev->open_lock);
|
|
|
|
/* turn off stream */
|
|
if (res_check(fh)) {
|
|
if (dev->b_acquire[fh->channel])
|
|
s2255_stop_acquire(dev, fh->channel);
|
|
videobuf_streamoff(&fh->vb_vidq);
|
|
res_free(dev, fh);
|
|
}
|
|
|
|
videobuf_mmap_free(&fh->vb_vidq);
|
|
dev->users[fh->channel]--;
|
|
|
|
mutex_unlock(&dev->open_lock);
|
|
|
|
kref_put(&dev->kref, s2255_destroy);
|
|
dprintk(1, "s2255: close called (minor=%d, users=%d)\n",
|
|
minor, dev->users[fh->channel]);
|
|
kfree(fh);
|
|
return 0;
|
|
}
|
|
|
|
static int s2255_mmap_v4l(struct file *file, struct vm_area_struct *vma)
|
|
{
|
|
struct s2255_fh *fh = file->private_data;
|
|
int ret;
|
|
|
|
if (!fh)
|
|
return -ENODEV;
|
|
dprintk(4, "mmap called, vma=0x%08lx\n", (unsigned long)vma);
|
|
|
|
ret = videobuf_mmap_mapper(&fh->vb_vidq, vma);
|
|
|
|
dprintk(4, "vma start=0x%08lx, size=%ld, ret=%d\n",
|
|
(unsigned long)vma->vm_start,
|
|
(unsigned long)vma->vm_end - (unsigned long)vma->vm_start, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct v4l2_file_operations s2255_fops_v4l = {
|
|
.owner = THIS_MODULE,
|
|
.open = s2255_open,
|
|
.release = s2255_close,
|
|
.poll = s2255_poll,
|
|
.ioctl = video_ioctl2, /* V4L2 ioctl handler */
|
|
.mmap = s2255_mmap_v4l,
|
|
};
|
|
|
|
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 = vidioc_reqbufs,
|
|
.vidioc_querybuf = vidioc_querybuf,
|
|
.vidioc_qbuf = vidioc_qbuf,
|
|
.vidioc_dqbuf = vidioc_dqbuf,
|
|
.vidioc_s_std = vidioc_s_std,
|
|
.vidioc_enum_input = vidioc_enum_input,
|
|
.vidioc_g_input = vidioc_g_input,
|
|
.vidioc_s_input = vidioc_s_input,
|
|
.vidioc_queryctrl = vidioc_queryctrl,
|
|
.vidioc_g_ctrl = vidioc_g_ctrl,
|
|
.vidioc_s_ctrl = vidioc_s_ctrl,
|
|
.vidioc_streamon = vidioc_streamon,
|
|
.vidioc_streamoff = vidioc_streamoff,
|
|
#ifdef CONFIG_VIDEO_V4L1_COMPAT
|
|
.vidiocgmbuf = vidioc_cgmbuf,
|
|
#endif
|
|
.vidioc_s_jpegcomp = vidioc_s_jpegcomp,
|
|
.vidioc_g_jpegcomp = vidioc_g_jpegcomp,
|
|
};
|
|
|
|
static struct video_device template = {
|
|
.name = "s2255v",
|
|
.fops = &s2255_fops_v4l,
|
|
.ioctl_ops = &s2255_ioctl_ops,
|
|
.minor = -1,
|
|
.release = video_device_release,
|
|
.tvnorms = S2255_NORMS,
|
|
.current_norm = V4L2_STD_NTSC_M,
|
|
};
|
|
|
|
static int s2255_probe_v4l(struct s2255_dev *dev)
|
|
{
|
|
int ret;
|
|
int i;
|
|
int cur_nr = video_nr;
|
|
|
|
/* initialize all video 4 linux */
|
|
list_add_tail(&dev->s2255_devlist, &s2255_devlist);
|
|
/* register 4 video devices */
|
|
for (i = 0; i < MAX_CHANNELS; i++) {
|
|
INIT_LIST_HEAD(&dev->vidq[i].active);
|
|
dev->vidq[i].dev = dev;
|
|
dev->vidq[i].channel = i;
|
|
dev->vidq[i].kthread = NULL;
|
|
/* register 4 video devices */
|
|
dev->vdev[i] = video_device_alloc();
|
|
memcpy(dev->vdev[i], &template, sizeof(struct video_device));
|
|
dev->vdev[i]->parent = &dev->interface->dev;
|
|
if (video_nr == -1)
|
|
ret = video_register_device(dev->vdev[i],
|
|
VFL_TYPE_GRABBER,
|
|
video_nr);
|
|
else
|
|
ret = video_register_device(dev->vdev[i],
|
|
VFL_TYPE_GRABBER,
|
|
cur_nr + i);
|
|
video_set_drvdata(dev->vdev[i], dev);
|
|
|
|
if (ret != 0) {
|
|
dev_err(&dev->udev->dev,
|
|
"failed to register video device!\n");
|
|
return ret;
|
|
}
|
|
}
|
|
printk(KERN_INFO "Sensoray 2255 V4L driver\n");
|
|
return ret;
|
|
}
|
|
|
|
static void s2255_exit_v4l(struct s2255_dev *dev)
|
|
{
|
|
|
|
int i;
|
|
for (i = 0; i < MAX_CHANNELS; i++) {
|
|
if (-1 != dev->vdev[i]->minor) {
|
|
video_unregister_device(dev->vdev[i]);
|
|
printk(KERN_INFO "s2255 unregistered\n");
|
|
} else {
|
|
video_device_release(dev->vdev[i]);
|
|
printk(KERN_INFO "s2255 released\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
|
|
dprintk(100, "buffer to user\n");
|
|
|
|
idx = dev->cur_frame[dev->cc];
|
|
frm = &dev->buffer[dev->cc].frame[idx];
|
|
|
|
if (frm->ulState == S2255_READ_IDLE) {
|
|
int jj;
|
|
unsigned int cc;
|
|
s32 *pdword;
|
|
int payload;
|
|
/* search for marker codes */
|
|
pdata = (unsigned char *)pipe_info->transfer_buffer;
|
|
for (jj = 0; jj < (pipe_info->cur_transfer_size - 12); jj++) {
|
|
switch (*(s32 *) pdata) {
|
|
case S2255_MARKER_FRAME:
|
|
pdword = (s32 *)pdata;
|
|
dprintk(4, "found frame marker at offset:"
|
|
" %d [%x %x]\n", jj, pdata[0],
|
|
pdata[1]);
|
|
offset = jj + PREFIX_SIZE;
|
|
bframe = 1;
|
|
cc = pdword[1];
|
|
if (cc >= MAX_CHANNELS) {
|
|
printk(KERN_ERR
|
|
"bad channel\n");
|
|
return -EINVAL;
|
|
}
|
|
/* reverse it */
|
|
dev->cc = G_chnmap[cc];
|
|
payload = pdword[3];
|
|
if (payload > dev->req_image_size[dev->cc]) {
|
|
dev->bad_payload[dev->cc]++;
|
|
/* discard the bad frame */
|
|
return -EINVAL;
|
|
}
|
|
dev->pkt_size[dev->cc] = payload;
|
|
dev->jpg_size[dev->cc] = pdword[4];
|
|
break;
|
|
case S2255_MARKER_RESPONSE:
|
|
pdword = (s32 *)pdata;
|
|
pdata += DEF_USB_BLOCK;
|
|
jj += DEF_USB_BLOCK;
|
|
if (pdword[1] >= MAX_CHANNELS)
|
|
break;
|
|
cc = G_chnmap[pdword[1]];
|
|
if (!(cc >= 0 && cc < MAX_CHANNELS))
|
|
break;
|
|
switch (pdword[2]) {
|
|
case 0x01:
|
|
/* check if channel valid */
|
|
/* set mode ready */
|
|
dev->setmode_ready[cc] = 1;
|
|
wake_up(&dev->wait_setmode[cc]);
|
|
dprintk(5, "setmode ready %d\n", cc);
|
|
break;
|
|
case 0x10:
|
|
|
|
dev->chn_ready |= (1 << cc);
|
|
if ((dev->chn_ready & 0x0f) != 0x0f)
|
|
break;
|
|
/* all channels ready */
|
|
printk(KERN_INFO "s2255: fw loaded\n");
|
|
atomic_set(&dev->fw_data->fw_state,
|
|
S2255_FW_SUCCESS);
|
|
wake_up(&dev->fw_data->wait_fw);
|
|
break;
|
|
default:
|
|
printk(KERN_INFO "s2255 unknwn resp\n");
|
|
}
|
|
default:
|
|
pdata++;
|
|
break;
|
|
}
|
|
if (bframe)
|
|
break;
|
|
} /* for */
|
|
if (!bframe)
|
|
return -EINVAL;
|
|
}
|
|
|
|
|
|
idx = dev->cur_frame[dev->cc];
|
|
frm = &dev->buffer[dev->cc].frame[idx];
|
|
|
|
/* search done. now find out if should be acquiring on this channel */
|
|
if (!dev->b_acquire[dev->cc]) {
|
|
/* 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(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 = dev->pkt_size[dev->cc] - PREFIX_SIZE;
|
|
|
|
/* sanity check on pdest */
|
|
if ((copy_size + frm->cur_size) < dev->req_image_size[dev->cc])
|
|
memcpy(pdest, psrc, copy_size);
|
|
|
|
frm->cur_size += copy_size;
|
|
dprintk(4, "cur_size size %lu size %lu \n", frm->cur_size, size);
|
|
|
|
if (frm->cur_size >= size) {
|
|
|
|
u32 cc = dev->cc;
|
|
dprintk(2, "****************[%d]Buffer[%d]full*************\n",
|
|
cc, idx);
|
|
dev->last_frame[cc] = dev->cur_frame[cc];
|
|
dev->cur_frame[cc]++;
|
|
/* end of system frame ring buffer, start at zero */
|
|
if ((dev->cur_frame[cc] == SYS_FRAMES) ||
|
|
(dev->cur_frame[cc] == dev->buffer[cc].dwFrames))
|
|
dev->cur_frame[cc] = 0;
|
|
/* frame ready */
|
|
if (dev->b_acquire[cc])
|
|
s2255_got_frame(dev, cc, dev->jpg_size[cc]);
|
|
dev->frame_count[cc]++;
|
|
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(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(4, "s2255: read callback failed\n");
|
|
|
|
dprintk(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;
|
|
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, TransferBuffer,
|
|
TransferBufferLength, HZ * 5);
|
|
} else {
|
|
r = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
|
|
Request, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
|
|
Value, Index, TransferBuffer,
|
|
TransferBufferLength, HZ * 5);
|
|
}
|
|
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(2, "get fw error: %x\n", ret);
|
|
fw = transBuffer[0] + (transBuffer[1] << 8);
|
|
dprintk(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_dev *dev, unsigned long chn)
|
|
{
|
|
unsigned long i;
|
|
unsigned long reqsize;
|
|
dprintk(1, "create sys buffers\n");
|
|
if (chn >= MAX_CHANNELS)
|
|
return -1;
|
|
|
|
dev->buffer[chn].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 */
|
|
dev->buffer[chn].frame[i].lpvbits = vmalloc(reqsize);
|
|
|
|
dprintk(1, "valloc %p chan %lu, idx %lu, pdata %p\n",
|
|
&dev->buffer[chn].frame[i], chn, i,
|
|
dev->buffer[chn].frame[i].lpvbits);
|
|
dev->buffer[chn].frame[i].size = reqsize;
|
|
if (dev->buffer[chn].frame[i].lpvbits == NULL) {
|
|
printk(KERN_INFO "out of memory. using less frames\n");
|
|
dev->buffer[chn].dwFrames = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* make sure internal states are set */
|
|
for (i = 0; i < SYS_FRAMES; i++) {
|
|
dev->buffer[chn].frame[i].ulState = 0;
|
|
dev->buffer[chn].frame[i].cur_size = 0;
|
|
}
|
|
|
|
dev->cur_frame[chn] = 0;
|
|
dev->last_frame[chn] = -1;
|
|
return 0;
|
|
}
|
|
|
|
static int s2255_release_sys_buffers(struct s2255_dev *dev,
|
|
unsigned long channel)
|
|
{
|
|
unsigned long i;
|
|
dprintk(1, "release sys buffers\n");
|
|
for (i = 0; i < SYS_FRAMES; i++) {
|
|
if (dev->buffer[channel].frame[i].lpvbits) {
|
|
dprintk(1, "vfree %p\n",
|
|
dev->buffer[channel].frame[i].lpvbits);
|
|
vfree(dev->buffer[channel].frame[i].lpvbits);
|
|
}
|
|
dev->buffer[channel].frame[i].lpvbits = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int s2255_board_init(struct s2255_dev *dev)
|
|
{
|
|
int j;
|
|
struct s2255_mode mode_def = DEF_MODEI_NTSC_CONT;
|
|
int fw_ver;
|
|
dprintk(4, "board init: %p", dev);
|
|
|
|
for (j = 0; j < MAX_PIPE_BUFFERS; j++) {
|
|
struct s2255_pipeinfo *pipe = &dev->pipes[j];
|
|
|
|
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(1, "out of memory!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
}
|
|
|
|
/* query the firmware */
|
|
fw_ver = s2255_get_fx2fw(dev);
|
|
|
|
printk(KERN_INFO "2255 usb firmware version %d \n", fw_ver);
|
|
if (fw_ver < CUR_USB_FWVER)
|
|
err("usb firmware not up to date %d\n", fw_ver);
|
|
|
|
for (j = 0; j < MAX_CHANNELS; j++) {
|
|
dev->b_acquire[j] = 0;
|
|
dev->mode[j] = mode_def;
|
|
dev->jc[j].quality = S2255_DEF_JPEG_QUAL;
|
|
dev->cur_fmt[j] = &formats[0];
|
|
dev->mode[j].restart = 1;
|
|
dev->req_image_size[j] = get_transfer_size(&mode_def);
|
|
dev->frame_count[j] = 0;
|
|
/* create the system buffers */
|
|
s2255_create_sys_buffers(dev, j);
|
|
}
|
|
/* start read pipe */
|
|
s2255_start_readpipe(dev);
|
|
|
|
dprintk(1, "S2255: board initialized\n");
|
|
return 0;
|
|
}
|
|
|
|
static int s2255_board_shutdown(struct s2255_dev *dev)
|
|
{
|
|
u32 i;
|
|
|
|
dprintk(1, "S2255: board shutdown: %p", dev);
|
|
|
|
for (i = 0; i < MAX_CHANNELS; i++) {
|
|
if (dev->b_acquire[i])
|
|
s2255_stop_acquire(dev, i);
|
|
}
|
|
|
|
s2255_stop_readpipe(dev);
|
|
|
|
for (i = 0; i < MAX_CHANNELS; i++)
|
|
s2255_release_sys_buffers(dev, i);
|
|
|
|
/* release transfer buffers */
|
|
for (i = 0; i < MAX_PIPE_BUFFERS; i++) {
|
|
struct s2255_pipeinfo *pipe = &dev->pipes[i];
|
|
kfree(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;
|
|
dprintk(100, "read pipe completion %p, status %d\n", purb,
|
|
purb->status);
|
|
if (pipe_info == NULL) {
|
|
err("no context !");
|
|
return;
|
|
}
|
|
|
|
dev = pipe_info->dev;
|
|
if (dev == NULL) {
|
|
err("no context !");
|
|
return;
|
|
}
|
|
status = purb->status;
|
|
if (status != 0) {
|
|
dprintk(2, "read_pipe_completion: err\n");
|
|
return;
|
|
}
|
|
|
|
if (pipe_info->state == 0) {
|
|
dprintk(2, "exiting USB pipe");
|
|
return;
|
|
}
|
|
|
|
s2255_read_video_callback(dev, pipe_info);
|
|
|
|
pipe_info->err_count = 0;
|
|
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_KERNEL)) {
|
|
dev_err(&dev->udev->dev, "error submitting urb\n");
|
|
usb_free_urb(pipe_info->stream_urb);
|
|
}
|
|
} else {
|
|
dprintk(2, "read pipe complete state 0\n");
|
|
}
|
|
return;
|
|
}
|
|
|
|
static int s2255_start_readpipe(struct s2255_dev *dev)
|
|
{
|
|
int pipe;
|
|
int retval;
|
|
int i;
|
|
struct s2255_pipeinfo *pipe_info = dev->pipes;
|
|
pipe = usb_rcvbulkpipe(dev->udev, dev->read_endpoint);
|
|
dprintk(2, "start pipe IN %d\n", dev->read_endpoint);
|
|
|
|
for (i = 0; i < MAX_PIPE_BUFFERS; i++) {
|
|
pipe_info->state = 1;
|
|
pipe_info->buf_index = (u32) i;
|
|
pipe_info->priority_set = 0;
|
|
pipe_info->stream_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!pipe_info->stream_urb) {
|
|
dev_err(&dev->udev->dev,
|
|
"ReadStream: Unable to alloc 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);
|
|
|
|
pipe_info->urb_size = sizeof(pipe_info->stream_urb);
|
|
dprintk(4, "submitting URB %p\n", pipe_info->stream_urb);
|
|
retval = usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL);
|
|
if (retval) {
|
|
printk(KERN_ERR "s2255: start read pipe failed\n");
|
|
return retval;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* starts acquisition process */
|
|
static int s2255_start_acquire(struct s2255_dev *dev, unsigned long chn)
|
|
{
|
|
unsigned char *buffer;
|
|
int res;
|
|
unsigned long chn_rev;
|
|
int j;
|
|
if (chn >= MAX_CHANNELS) {
|
|
dprintk(2, "start acquire failed, bad channel %lu\n", chn);
|
|
return -1;
|
|
}
|
|
|
|
chn_rev = G_chnmap[chn];
|
|
dprintk(1, "S2255: start acquire %lu \n", chn);
|
|
|
|
buffer = kzalloc(512, GFP_KERNEL);
|
|
if (buffer == NULL) {
|
|
dev_err(&dev->udev->dev, "out of mem\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dev->last_frame[chn] = -1;
|
|
dev->bad_payload[chn] = 0;
|
|
dev->cur_frame[chn] = 0;
|
|
for (j = 0; j < SYS_FRAMES; j++) {
|
|
dev->buffer[chn].frame[j].ulState = 0;
|
|
dev->buffer[chn].frame[j].cur_size = 0;
|
|
}
|
|
|
|
/* send the start command */
|
|
*(u32 *) buffer = IN_DATA_TOKEN;
|
|
*((u32 *) buffer + 1) = (u32) chn_rev;
|
|
*((u32 *) buffer + 2) = (u32) 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(2, "start acquire exit[%lu] %d \n", chn, res);
|
|
kfree(buffer);
|
|
return 0;
|
|
}
|
|
|
|
static int s2255_stop_acquire(struct s2255_dev *dev, unsigned long chn)
|
|
{
|
|
unsigned char *buffer;
|
|
int res;
|
|
unsigned long chn_rev;
|
|
|
|
if (chn >= MAX_CHANNELS) {
|
|
dprintk(2, "stop acquire failed, bad channel %lu\n", chn);
|
|
return -1;
|
|
}
|
|
chn_rev = G_chnmap[chn];
|
|
|
|
buffer = kzalloc(512, GFP_KERNEL);
|
|
if (buffer == NULL) {
|
|
dev_err(&dev->udev->dev, "out of mem\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* send the stop command */
|
|
dprintk(4, "stop acquire %lu\n", chn);
|
|
*(u32 *) buffer = IN_DATA_TOKEN;
|
|
*((u32 *) buffer + 1) = (u32) chn_rev;
|
|
*((u32 *) 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(4, "stop acquire: releasing states \n");
|
|
|
|
kfree(buffer);
|
|
dev->b_acquire[chn] = 0;
|
|
|
|
return res;
|
|
}
|
|
|
|
static void s2255_stop_readpipe(struct s2255_dev *dev)
|
|
{
|
|
int j;
|
|
|
|
if (dev == NULL) {
|
|
err("s2255: invalid device");
|
|
return;
|
|
}
|
|
dprintk(4, "stop read pipe\n");
|
|
for (j = 0; j < MAX_PIPE_BUFFERS; j++) {
|
|
struct s2255_pipeinfo *pipe_info = &dev->pipes[j];
|
|
if (pipe_info) {
|
|
if (pipe_info->state == 0)
|
|
continue;
|
|
pipe_info->state = 0;
|
|
pipe_info->prev_state = 1;
|
|
|
|
}
|
|
}
|
|
|
|
for (j = 0; j < MAX_PIPE_BUFFERS; j++) {
|
|
struct s2255_pipeinfo *pipe_info = &dev->pipes[j];
|
|
if (pipe_info->stream_urb) {
|
|
/* cancel urb */
|
|
usb_kill_urb(pipe_info->stream_urb);
|
|
usb_free_urb(pipe_info->stream_urb);
|
|
pipe_info->stream_urb = NULL;
|
|
}
|
|
}
|
|
dprintk(2, "s2255 stop read pipe: %d\n", j);
|
|
return;
|
|
}
|
|
|
|
static void s2255_fwload_start(struct s2255_dev *dev, int reset)
|
|
{
|
|
if (reset)
|
|
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;
|
|
|
|
dprintk(2, "s2255: probe\n");
|
|
|
|
/* allocate memory for our device state and initialize it to zero */
|
|
dev = kzalloc(sizeof(struct s2255_dev), GFP_KERNEL);
|
|
if (dev == NULL) {
|
|
err("s2255: out of memory");
|
|
goto error;
|
|
}
|
|
|
|
dev->fw_data = kzalloc(sizeof(struct s2255_fw), GFP_KERNEL);
|
|
if (!dev->fw_data)
|
|
goto error;
|
|
|
|
mutex_init(&dev->lock);
|
|
mutex_init(&dev->open_lock);
|
|
|
|
/* 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 error;
|
|
}
|
|
kref_init(&dev->kref);
|
|
dprintk(1, "dev: %p, kref: %p udev %p interface %p\n", dev, &dev->kref,
|
|
dev->udev, interface);
|
|
dev->interface = interface;
|
|
/* set up the endpoint information */
|
|
iface_desc = interface->cur_altsetting;
|
|
dprintk(1, "num endpoints %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");
|
|
goto error;
|
|
}
|
|
|
|
/* set intfdata */
|
|
usb_set_intfdata(interface, dev);
|
|
|
|
dprintk(100, "after intfdata %p\n", dev);
|
|
|
|
init_timer(&dev->timer);
|
|
dev->timer.function = s2255_timer;
|
|
dev->timer.data = (unsigned long)dev->fw_data;
|
|
|
|
init_waitqueue_head(&dev->fw_data->wait_fw);
|
|
for (i = 0; i < MAX_CHANNELS; i++)
|
|
init_waitqueue_head(&dev->wait_setmode[i]);
|
|
|
|
|
|
dev->fw_data->fw_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
|
if (!dev->fw_data->fw_urb) {
|
|
dev_err(&interface->dev, "out of memory!\n");
|
|
goto error;
|
|
}
|
|
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 error;
|
|
}
|
|
/* load the first chunk */
|
|
if (request_firmware(&dev->fw_data->fw,
|
|
FIRMWARE_FILE_NAME, &dev->udev->dev)) {
|
|
printk(KERN_ERR "sensoray 2255 failed to get firmware\n");
|
|
goto error;
|
|
}
|
|
/* 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) {
|
|
printk(KERN_INFO "Firmware invalid.\n");
|
|
retval = -ENODEV;
|
|
goto error;
|
|
} else {
|
|
/* make sure firmware is the latest */
|
|
__le32 *pRel;
|
|
pRel = (__le32 *) &dev->fw_data->fw->data[fw_size - 4];
|
|
printk(KERN_INFO "s2255 dsp fw version %x\n", *pRel);
|
|
}
|
|
/* loads v4l specific */
|
|
s2255_probe_v4l(dev);
|
|
usb_reset_device(dev->udev);
|
|
/* load 2255 board specific */
|
|
s2255_board_init(dev);
|
|
|
|
dprintk(4, "before probe done %p\n", dev);
|
|
spin_lock_init(&dev->slock);
|
|
|
|
s2255_fwload_start(dev, 0);
|
|
dev_info(&interface->dev, "Sensoray 2255 detected\n");
|
|
return 0;
|
|
error:
|
|
return retval;
|
|
}
|
|
|
|
/* disconnect routine. when board is removed physically or with rmmod */
|
|
static void s2255_disconnect(struct usb_interface *interface)
|
|
{
|
|
struct s2255_dev *dev = NULL;
|
|
int i;
|
|
dprintk(1, "s2255: disconnect interface %p\n", interface);
|
|
dev = usb_get_intfdata(interface);
|
|
|
|
/*
|
|
* wake up any of the timers to allow open_lock to be
|
|
* acquired sooner
|
|
*/
|
|
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->setmode_ready[i] = 1;
|
|
wake_up(&dev->wait_setmode[i]);
|
|
}
|
|
|
|
mutex_lock(&dev->open_lock);
|
|
usb_set_intfdata(interface, NULL);
|
|
mutex_unlock(&dev->open_lock);
|
|
|
|
if (dev) {
|
|
kref_put(&dev->kref, s2255_destroy);
|
|
dprintk(1, "s2255drv: disconnect\n");
|
|
dev_info(&interface->dev, "s2255usb now disconnected\n");
|
|
}
|
|
}
|
|
|
|
static struct usb_driver s2255_driver = {
|
|
.name = "s2255",
|
|
.probe = s2255_probe,
|
|
.disconnect = s2255_disconnect,
|
|
.id_table = s2255_table,
|
|
};
|
|
|
|
static int __init usb_s2255_init(void)
|
|
{
|
|
int result;
|
|
|
|
/* register this driver with the USB subsystem */
|
|
result = usb_register(&s2255_driver);
|
|
|
|
if (result)
|
|
err("usb_register failed. Error number %d", result);
|
|
|
|
dprintk(2, "s2255_init: done\n");
|
|
return result;
|
|
}
|
|
|
|
static void __exit usb_s2255_exit(void)
|
|
{
|
|
usb_deregister(&s2255_driver);
|
|
}
|
|
|
|
module_init(usb_s2255_init);
|
|
module_exit(usb_s2255_exit);
|
|
|
|
MODULE_DESCRIPTION("Sensoray 2255 Video for Linux driver");
|
|
MODULE_AUTHOR("Dean Anderson (Sensoray Company Inc.)");
|
|
MODULE_LICENSE("GPL");
|