diff options
Diffstat (limited to 'drivers/media/video/s2255drv.c')
| -rw-r--r-- | drivers/media/video/s2255drv.c | 2616 |
1 files changed, 0 insertions, 2616 deletions
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c deleted file mode 100644 index 13f85ad363c..00000000000 --- a/drivers/media/video/s2255drv.c +++ /dev/null @@ -1,2616 +0,0 @@ -/* - * s2255drv.c - a driver for the Sensoray 2255 USB video capture device - * - * Copyright (C) 2007-2008 by Sensoray Company Inc. - * Dean Anderson - * - * Some video buffer code based on vivi driver: - * - * Sensoray 2255 device supports 4 simultaneous channels. - * The channels are not "crossbar" inputs, they are physically - * attached to separate video decoders. - * - * Because of USB2.0 bandwidth limitations. There is only a - * certain amount of data which may be transferred at one time. - * - * Example maximum bandwidth utilization: - * - * -full size, color mode YUYV or YUV422P: 2 channels at once - * - * -full or half size Grey scale: all 4 channels at once - * - * -half size, color mode YUYV or YUV422P: all 4 channels at once - * - * -full size, color mode YUYV or YUV422P 1/2 frame rate: all 4 channels - * at once. - * (TODO: Incorporate videodev2 frame rate(FR) enumeration, - * which is currently experimental.) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/module.h> -#include <linux/firmware.h> -#include <linux/kernel.h> -#include <linux/mutex.h> -#include <linux/videodev2.h> -#include <linux/version.h> -#include <linux/mm.h> -#include <media/videobuf-vmalloc.h> -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> -#include <linux/vmalloc.h> -#include <linux/usb.h> - -#define FIRMWARE_FILE_NAME "f2255usb.bin" - - - -/* default JPEG quality */ -#define S2255_DEF_JPEG_QUAL 50 -/* vendor request in */ -#define S2255_VR_IN 0 -/* vendor request out */ -#define S2255_VR_OUT 1 -/* firmware query */ -#define S2255_VR_FW 0x30 -/* USB endpoint number for configuring the device */ -#define S2255_CONFIG_EP 2 -/* maximum time for DSP to start responding after last FW word loaded(ms) */ -#define S2255_DSP_BOOTTIME 800 -/* maximum time to wait for firmware to load (ms) */ -#define S2255_LOAD_TIMEOUT (5000 + S2255_DSP_BOOTTIME) -#define S2255_DEF_BUFS 16 -#define S2255_SETMODE_TIMEOUT 500 -#define MAX_CHANNELS 4 -#define S2255_MARKER_FRAME 0x2255DA4AL -#define S2255_MARKER_RESPONSE 0x2255ACACL -#define S2255_USB_XFER_SIZE (16 * 1024) -#define MAX_CHANNELS 4 -#define MAX_PIPE_BUFFERS 1 -#define SYS_FRAMES 4 -/* maximum size is PAL full size plus room for the marker header(s) */ -#define SYS_FRAMES_MAXSIZE (720*288*2*2 + 4096) -#define DEF_USB_BLOCK S2255_USB_XFER_SIZE -#define LINE_SZ_4CIFS_NTSC 640 -#define LINE_SZ_2CIFS_NTSC 640 -#define LINE_SZ_1CIFS_NTSC 320 -#define LINE_SZ_4CIFS_PAL 704 -#define LINE_SZ_2CIFS_PAL 704 -#define LINE_SZ_1CIFS_PAL 352 -#define NUM_LINES_4CIFS_NTSC 240 -#define NUM_LINES_2CIFS_NTSC 240 -#define NUM_LINES_1CIFS_NTSC 240 -#define NUM_LINES_4CIFS_PAL 288 -#define NUM_LINES_2CIFS_PAL 288 -#define NUM_LINES_1CIFS_PAL 288 -#define LINE_SZ_DEF 640 -#define NUM_LINES_DEF 240 - - -/* predefined settings */ -#define FORMAT_NTSC 1 -#define FORMAT_PAL 2 - -#define SCALE_4CIFS 1 /* 640x480(NTSC) or 704x576(PAL) */ -#define SCALE_2CIFS 2 /* 640x240(NTSC) or 704x288(PAL) */ -#define SCALE_1CIFS 3 /* 320x240(NTSC) or 352x288(PAL) */ - -#define COLOR_YUVPL 1 /* YUV planar */ -#define COLOR_YUVPK 2 /* YUV packed */ -#define COLOR_Y8 4 /* monochrome */ -#define COLOR_JPG 5 /* JPEG */ -#define MASK_COLOR 0xff -#define MASK_JPG_QUALITY 0xff00 - -/* frame decimation. Not implemented by V4L yet(experimental in V4L) */ -#define FDEC_1 1 /* capture every frame. default */ -#define FDEC_2 2 /* capture every 2nd frame */ -#define FDEC_3 3 /* capture every 3rd frame */ -#define FDEC_5 5 /* capture every 5th frame */ - -/*------------------------------------------------------- - * Default mode parameters. - *-------------------------------------------------------*/ -#define DEF_SCALE SCALE_4CIFS -#define DEF_COLOR COLOR_YUVPL -#define DEF_FDEC FDEC_1 -#define DEF_BRIGHT 0 -#define DEF_CONTRAST 0x5c -#define DEF_SATURATION 0x80 -#define DEF_HUE 0 - -/* usb config commands */ -#define IN_DATA_TOKEN 0x2255c0de -#define CMD_2255 0xc2255000 -#define CMD_SET_MODE (CMD_2255 | 0x10) -#define CMD_START (CMD_2255 | 0x20) -#define CMD_STOP (CMD_2255 | 0x30) -#define CMD_STATUS (CMD_2255 | 0x40) - -struct s2255_mode { - u32 format; /* input video format (NTSC, PAL) */ - u32 scale; /* output video scale */ - u32 color; /* output video color format */ - u32 fdec; /* frame decimation */ - u32 bright; /* brightness */ - u32 contrast; /* contrast */ - u32 saturation; /* saturation */ - u32 hue; /* hue (NTSC only)*/ - u32 single; /* capture 1 frame at a time (!=0), continuously (==0)*/ - u32 usb_block; /* block size. should be 4096 of DEF_USB_BLOCK */ - u32 restart; /* if DSP requires restart */ -}; - - -#define S2255_READ_IDLE 0 -#define S2255_READ_FRAME 1 - -/* frame structure */ -struct s2255_framei { - unsigned long size; - unsigned long ulState; /* ulState:S2255_READ_IDLE, S2255_READ_FRAME*/ - void *lpvbits; /* image data */ - unsigned long cur_size; /* current data copied to it */ -}; - -/* image buffer structure */ -struct s2255_bufferi { - unsigned long dwFrames; /* number of frames in buffer */ - struct s2255_framei frame[SYS_FRAMES]; /* array of FRAME structures */ -}; - -#define DEF_MODEI_NTSC_CONT {FORMAT_NTSC, DEF_SCALE, DEF_COLOR, \ - DEF_FDEC, DEF_BRIGHT, DEF_CONTRAST, DEF_SATURATION, \ - DEF_HUE, 0, DEF_USB_BLOCK, 0} - -struct s2255_dmaqueue { - struct list_head active; - /* thread for acquisition */ - struct task_struct *kthread; - int frame; - struct s2255_dev *dev; - int channel; -}; - -/* for firmware loading, fw_state */ -#define S2255_FW_NOTLOADED 0 -#define S2255_FW_LOADED_DSPWAIT 1 -#define S2255_FW_SUCCESS 2 -#define S2255_FW_FAILED 3 -#define S2255_FW_DISCONNECTING 4 - -#define S2255_FW_MARKER cpu_to_le32(0x22552f2f) -/* 2255 read states */ -#define S2255_READ_IDLE 0 -#define S2255_READ_FRAME 1 -struct s2255_fw { - int fw_loaded; - int fw_size; - struct urb *fw_urb; - atomic_t fw_state; - void *pfw_data; - wait_queue_head_t wait_fw; - const struct firmware *fw; -}; - -struct s2255_pipeinfo { - u32 max_transfer_size; - u32 cur_transfer_size; - u8 *transfer_buffer; - u32 transfer_flags;; - u32 state; - u32 prev_state; - u32 urb_size; - void *stream_urb; - void *dev; /* back pointer to s2255_dev struct*/ - u32 err_count; - u32 buf_index; - u32 idx; - u32 priority_set; -}; - -struct s2255_fmt; /*forward declaration */ - -struct s2255_dev { - int frames; - int users[MAX_CHANNELS]; - struct mutex lock; - struct mutex open_lock; - int resources[MAX_CHANNELS]; - struct usb_device *udev; - struct usb_interface *interface; - u8 read_endpoint; - - struct s2255_dmaqueue vidq[MAX_CHANNELS]; - struct video_device *vdev[MAX_CHANNELS]; - struct list_head s2255_devlist; - struct timer_list timer; - struct s2255_fw *fw_data; - int board_num; - int is_open; - struct s2255_pipeinfo pipes[MAX_PIPE_BUFFERS]; - struct s2255_bufferi buffer[MAX_CHANNELS]; - struct s2255_mode mode[MAX_CHANNELS]; - /* jpeg compression */ - struct v4l2_jpegcompression jc[MAX_CHANNELS]; - const struct s2255_fmt *cur_fmt[MAX_CHANNELS]; - int cur_frame[MAX_CHANNELS]; - int last_frame[MAX_CHANNELS]; - u32 cc; /* current channel */ - int b_acquire[MAX_CHANNELS]; - /* allocated image size */ - unsigned long req_image_size[MAX_CHANNELS]; - /* received packet size */ - unsigned long pkt_size[MAX_CHANNELS]; - int bad_payload[MAX_CHANNELS]; - unsigned long frame_count[MAX_CHANNELS]; - int frame_ready; - /* if JPEG image */ - int jpg_size[MAX_CHANNELS]; - /* if channel configured to default state */ - int chn_configured[MAX_CHANNELS]; - wait_queue_head_t wait_setmode[MAX_CHANNELS]; - int setmode_ready[MAX_CHANNELS]; - int chn_ready; - struct kref kref; - spinlock_t slock; -}; -#define to_s2255_dev(d) container_of(d, struct s2255_dev, kref) - -struct s2255_fmt { - char *name; - u32 fourcc; - int depth; -}; - -/* buffer for one video frame */ -struct s2255_buffer { - /* common v4l buffer stuff -- must be first */ - struct videobuf_buffer vb; - const struct s2255_fmt *fmt; -}; - -struct s2255_fh { - struct s2255_dev *dev; - const struct s2255_fmt *fmt; - unsigned int width; - unsigned int height; - struct videobuf_queue vb_vidq; - enum v4l2_buf_type type; - int channel; - /* mode below is the desired mode. - mode in s2255_dev is the current mode that was last set */ - struct s2255_mode mode; - int resources[MAX_CHANNELS]; -}; - -#define CUR_USB_FWVER 774 /* current cypress EEPROM firmware version */ -#define S2255_MAJOR_VERSION 1 -#define S2255_MINOR_VERSION 13 -#define S2255_RELEASE 0 -#define S2255_VERSION KERNEL_VERSION(S2255_MAJOR_VERSION, \ - S2255_MINOR_VERSION, \ - S2255_RELEASE) - -/* vendor ids */ -#define USB_S2255_VENDOR_ID 0x1943 -#define USB_S2255_PRODUCT_ID 0x2255 -#define S2255_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC) -/* frame prefix size (sent once every frame) */ -#define PREFIX_SIZE 512 - -/* Channels on box are in reverse order */ -static unsigned long G_chnmap[MAX_CHANNELS] = {3, 2, 1, 0}; - -static LIST_HEAD(s2255_devlist); - -static int debug; -static int *s2255_debug = &debug; - -static int s2255_start_readpipe(struct s2255_dev *dev); -static void s2255_stop_readpipe(struct s2255_dev *dev); -static int s2255_start_acquire(struct s2255_dev *dev, unsigned long chn); -static int s2255_stop_acquire(struct s2255_dev *dev, unsigned long chn); -static void s2255_fillbuff(struct s2255_dev *dev, struct s2255_buffer *buf, - int chn, int jpgsize); -static int s2255_set_mode(struct s2255_dev *dev, unsigned long chn, - struct s2255_mode *mode); -static int s2255_board_shutdown(struct s2255_dev *dev); -static void s2255_exit_v4l(struct s2255_dev *dev); -static void s2255_fwload_start(struct s2255_dev *dev, int reset); -static void s2255_destroy(struct kref *kref); -static long s2255_vendor_req(struct s2255_dev *dev, unsigned char req, - u16 index, u16 value, void *buf, - s32 buf_len, int bOut); - -#define dprintk(level, fmt, arg...) \ - do { \ - if (*s2255_debug >= (level)) { \ - printk(KERN_DEBUG "s2255: " fmt, ##arg); \ - } \ - } while (0) - - -static struct usb_driver s2255_driver; - - -/* Declare static vars that will be used as parameters */ -static unsigned int vid_limit = 16; /* Video memory limit, in Mb */ - -/* start video number */ -static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Debug level(0-100) default 0"); -module_param(vid_limit, int, 0644); -MODULE_PARM_DESC(vid_limit, "video memory limit(Mb)"); -module_param(video_nr, int, 0644); -MODULE_PARM_DESC(video_nr, "start video minor(-1 default autodetect)"); - -/* USB device table */ -static struct usb_device_id s2255_table[] = { - {USB_DEVICE(USB_S2255_VENDOR_ID, USB_S2255_PRODUCT_ID)}, - { } /* Terminating entry */ -}; -MODULE_DEVICE_TABLE(usb, s2255_table); - - -#define BUFFER_TIMEOUT msecs_to_jiffies(400) - -/* supported controls */ -static struct v4l2_queryctrl s2255_qctrl[] = { - { - .id = V4L2_CID_BRIGHTNESS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Brightness", - .minimum = -127, - .maximum = 128, - .step = 1, - .default_value = 0, - .flags = 0, - }, { - .id = V4L2_CID_CONTRAST, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Contrast", - .minimum = 0, - .maximum = 255, - .step = 0x1, - .default_value = DEF_CONTRAST, - .flags = 0, - }, { - .id = V4L2_CID_SATURATION, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Saturation", - .minimum = 0, - .maximum = 255, - .step = 0x1, - .default_value = DEF_SATURATION, - .flags = 0, - }, { - .id = V4L2_CID_HUE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Hue", - .minimum = 0, - .maximum = 255, - .step = 0x1, - .default_value = DEF_HUE, - .flags = 0, - } -}; - -static int qctl_regs[ARRAY_SIZE(s2255_qctrl)]; - -/* image formats. */ -static const struct s2255_fmt formats[] = { - { - .name = "4:2:2, planar, YUV422P", - .fourcc = V4L2_PIX_FMT_YUV422P, - .depth = 16 - - }, { - .name = "4:2:2, packed, YUYV", - .fourcc = V4L2_PIX_FMT_YUYV, - .depth = 16 - - }, { - .name = "4:2:2, packed, UYVY", - .fourcc = V4L2_PIX_FMT_UYVY, - .depth = 16 - }, { - .name = "JPG", - .fourcc = V4L2_PIX_FMT_JPEG, - .depth = 24 - }, { - .name = "8bpp GREY", - .fourcc = V4L2_PIX_FMT_GREY, - .depth = 8 - } -}; - -static int norm_maxw(struct video_device *vdev) -{ - return (vdev->current_norm & V4L2_STD_NTSC) ? - LINE_SZ_4CIFS_NTSC : LINE_SZ_4CIFS_PAL; -} - -static int norm_maxh(struct video_device *vdev) -{ - return (vdev->current_norm & V4L2_STD_NTSC) ? - (NUM_LINES_1CIFS_NTSC * 2) : (NUM_LINES_1CIFS_PAL * 2); -} - -static int norm_minw(struct video_device *vdev) -{ - return (vdev->current_norm & V4L2_STD_NTSC) ? - LINE_SZ_1CIFS_NTSC : LINE_SZ_1CIFS_PAL; -} - -static int norm_minh(struct video_device *vdev) -{ - return (vdev->current_norm & V4L2_STD_NTSC) ? - (NUM_LINES_1CIFS_NTSC) : (NUM_LINES_1CIFS_PAL); -} - - -/* - * 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"); |