diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 01:01:29 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-15 16:34:46 -0300 |
commit | 0aa77f6c2954896b132f8b6f2e9f063c52800913 (patch) | |
tree | bc1feafea586e399c0fe1b04b2efa375312bb9ba /drivers/media/usb/s2255 | |
parent | 0c0d06cac63ee327ceaab4b5ffe2206574ab86bd (diff) |
[media] move the remaining USB drivers to drivers/media/usb
Move the 3 remaining usb drivers to their proper space.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/usb/s2255')
-rw-r--r-- | drivers/media/usb/s2255/Kconfig | 9 | ||||
-rw-r--r-- | drivers/media/usb/s2255/Makefile | 2 | ||||
-rw-r--r-- | drivers/media/usb/s2255/s2255drv.c | 2689 |
3 files changed, 2700 insertions, 0 deletions
diff --git a/drivers/media/usb/s2255/Kconfig b/drivers/media/usb/s2255/Kconfig new file mode 100644 index 000000000000..7e8ee1f864ab --- /dev/null +++ b/drivers/media/usb/s2255/Kconfig @@ -0,0 +1,9 @@ +config USB_S2255 + tristate "USB Sensoray 2255 video capture device" + depends on VIDEO_V4L2 + select VIDEOBUF_VMALLOC + default n + help + Say Y here if you want support for the Sensoray 2255 USB device. + This driver can be compiled as a module, called s2255drv. + diff --git a/drivers/media/usb/s2255/Makefile b/drivers/media/usb/s2255/Makefile new file mode 100644 index 000000000000..197d0bb2adfd --- /dev/null +++ b/drivers/media/usb/s2255/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_USB_S2255) += s2255drv.o + diff --git a/drivers/media/usb/s2255/s2255drv.c b/drivers/media/usb/s2255/s2255drv.c new file mode 100644 index 000000000000..6c7960cc7506 --- /dev/null +++ b/drivers/media/usb/s2255/s2255drv.c @@ -0,0 +1,2689 @@ +/* + * s2255drv.c - a driver for the Sensoray 2255 USB video capture device + * + * Copyright (C) 2007-2010 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. + * + * 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/slab.h> +#include <linux/videodev2.h> +#include <linux/mm.h> +#include <media/videobuf-vmalloc.h> +#include <media/v4l2-common.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <linux/vmalloc.h> +#include <linux/usb.h> + +#define S2255_VERSION "1.22.1" +#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 S2255_VIDSTATUS_TIMEOUT 350 +#define S2255_MARKER_FRAME cpu_to_le32(0x2255DA4AL) +#define S2255_MARKER_RESPONSE cpu_to_le32(0x2255ACACL) +#define S2255_RESPONSE_SETMODE cpu_to_le32(0x01) +#define S2255_RESPONSE_FW cpu_to_le32(0x10) +#define S2255_RESPONSE_STATUS cpu_to_le32(0x20) +#define S2255_USB_XFER_SIZE (16 * 1024) +#define MAX_CHANNELS 4 +#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) */ +/* SCALE_4CIFSI is the 2 fields interpolated into one */ +#define SCALE_4CIFSI 4 /* 640x480(NTSC) or 704x576(PAL) high quality */ + +#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 0x000000ff +#define MASK_JPG_QUALITY 0x0000ff00 +#define MASK_INPUT_TYPE 0x000f0000 +/* frame decimation. */ +#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 cpu_to_le32(0x2255c0de) +#define CMD_2255 0xc2255000 +#define CMD_SET_MODE cpu_to_le32((CMD_2255 | 0x10)) +#define CMD_START cpu_to_le32((CMD_2255 | 0x20)) +#define CMD_STOP cpu_to_le32((CMD_2255 | 0x30)) +#define CMD_STATUS cpu_to_le32((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; + struct s2255_dev *dev; +}; + +/* 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 state; + void *stream_urb; + void *dev; /* back pointer to s2255_dev struct*/ + u32 err_count; + u32 idx; +}; + +struct s2255_fmt; /*forward declaration */ +struct s2255_dev; + +struct s2255_channel { + struct video_device vdev; + int resources; + struct s2255_dmaqueue vidq; + struct s2255_bufferi buffer; + struct s2255_mode mode; + /* jpeg compression */ + struct v4l2_jpegcompression jc; + /* capture parameters (for high quality mode full size) */ + struct v4l2_captureparm cap_parm; + int cur_frame; + int last_frame; + + int b_acquire; + /* allocated image size */ + unsigned long req_image_size; + /* received packet size */ + unsigned long pkt_size; + int bad_payload; + unsigned long frame_count; + /* if JPEG image */ + int jpg_size; + /* if channel configured to default state */ + int configured; + wait_queue_head_t wait_setmode; + int setmode_ready; + /* video status items */ + int vidstatus; + wait_queue_head_t wait_vidstatus; + int vidstatus_ready; + unsigned int width; + unsigned int height; + const struct s2255_fmt *fmt; + int idx; /* channel number on device, 0-3 */ +}; + + +struct s2255_dev { + struct s2255_channel channel[MAX_CHANNELS]; + struct v4l2_device v4l2_dev; + atomic_t num_channels; + int frames; + struct mutex lock; /* channels[].vdev.lock */ + struct usb_device *udev; + struct usb_interface *interface; + u8 read_endpoint; + struct timer_list timer; + struct s2255_fw *fw_data; + struct s2255_pipeinfo pipe; + u32 cc; /* current channel */ + int frame_ready; + int chn_ready; + spinlock_t slock; + /* dsp firmware version (f2255usb.bin) */ + int dsp_fw_ver; + u16 pid; /* product id */ +}; + +static inline struct s2255_dev *to_s2255_dev(struct v4l2_device *v4l2_dev) +{ + return container_of(v4l2_dev, struct s2255_dev, v4l2_dev); +} + +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; + struct videobuf_queue vb_vidq; + enum v4l2_buf_type type; + struct s2255_channel *channel; + int resources; +}; + +/* current cypress EEPROM firmware version */ +#define S2255_CUR_USB_FWVER ((3 << 8) | 12) +/* current DSP FW version */ +#define S2255_CUR_DSP_FWVER 10104 +/* Need DSP version 5+ for video status feature */ +#define S2255_MIN_DSP_STATUS 5 +#define S2255_MIN_DSP_COLORFILTER 8 +#define S2255_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC) + +/* private V4L2 controls */ + +/* + * The following chart displays how COLORFILTER should be set + * ========================================================= + * = fourcc = COLORFILTER = + * = =============================== + * = = 0 = 1 = + * ========================================================= + * = V4L2_PIX_FMT_GREY(Y8) = monochrome from = monochrome= + * = = s-video or = composite = + * = = B/W camera = input = + * ========================================================= + * = other = color, svideo = color, = + * = = = composite = + * ========================================================= + * + * Notes: + * channels 0-3 on 2255 are composite + * channels 0-1 on 2257 are composite, 2-3 are s-video + * If COLORFILTER is 0 with a composite color camera connected, + * the output will appear monochrome but hatching + * will occur. + * COLORFILTER is different from "color killer" and "color effects" + * for reasons above. + */ +#define S2255_V4L2_YC_ON 1 +#define S2255_V4L2_YC_OFF 0 +#define V4L2_CID_PRIVATE_COLORFILTER (V4L2_CID_PRIVATE_BASE + 0) + +/* 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 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_channel *channel); +static int s2255_stop_acquire(struct s2255_channel *channel); +static void s2255_fillbuff(struct s2255_channel *chn, struct s2255_buffer *buf, + int jpgsize); +static int s2255_set_mode(struct s2255_channel *chan, struct s2255_mode *mode); +static int s2255_board_shutdown(struct s2255_dev *dev); +static void s2255_fwload_start(struct s2255_dev *dev, int reset); +static void s2255_destroy(struct s2255_dev *dev); +static long s2255_vendor_req(struct s2255_dev *dev, unsigned char req, + u16 index, u16 value, void *buf, + s32 buf_len, int bOut); + +/* dev_err macro with driver name */ +#define S2255_DRIVER_NAME "s2255" +#define s2255_dev_err(dev, fmt, arg...) \ + dev_err(dev, S2255_DRIVER_NAME " - " fmt, ##arg) + +#define dprintk(level, fmt, arg...) \ + do { \ + if (*s2255_debug >= (level)) { \ + printk(KERN_DEBUG S2255_DRIVER_NAME \ + ": " 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 */ + +/* Enable jpeg capture. */ +static int jpeg_enable = 1; + +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)"); +module_param(jpeg_enable, int, 0644); +MODULE_PARM_DESC(jpeg_enable, "Jpeg enable(1-on 0-off) default 1"); + +/* USB device table */ +#define USB_SENSORAY_VID 0x1943 +static struct usb_device_id s2255_table[] = { + {USB_DEVICE(USB_SENSORAY_VID, 0x2255)}, + {USB_DEVICE(USB_SENSORAY_VID, 0x2257)}, /*same family as 2255*/ + { } /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(usb, s2255_table); + +#define BUFFER_TIMEOUT msecs_to_jiffies(400) + +/* image formats. */ +/* JPEG formats must be defined last to support jpeg_enable parameter */ +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 = "8bpp GREY", + .fourcc = V4L2_PIX_FMT_GREY, + .depth = 8 + }, { + .name = "JPG", + .fourcc = V4L2_PIX_FMT_JPEG, + .depth = 24 + }, { + .name = "MJPG", + .fourcc = V4L2_PIX_FMT_MJPEG, + .depth = 24 + } +}; + +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, 0x0000, 0x0001, NULL, 0, 1); + msleep(10); + s2255_vendor_req(dev, 0x50, 0x0000, 0x0000, NULL, 0, 1); + msleep(600); + s2255_vendor_req(dev, 0x10, 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, "%s\n", __func__); + 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, "%s: udev %p urb %p", __func__, udev, urb); + if (urb->status) { + dev_err(&udev->dev, "URB failed with status %d\n", 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) { + s2255_dev_err(&udev->dev, "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, "%s: firmware upload complete\n", __func__); + } + return; + +} + +static int s2255_got_frame(struct s2255_channel *channel, int jpgsize) +{ + struct s2255_dmaqueue *dma_q = &channel->vidq; + struct s2255_buffer *buf; + struct s2255_dev *dev = to_s2255_dev(channel->vdev.v4l2_dev); + unsigned long flags = 0; + int rc = 0; + 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); + list_del(&buf->vb.queue); + do_gettimeofday(&buf->vb.ts); + s2255_fillbuff(channel, buf, jpgsize); + wake_up(&buf->vb.done); + dprintk(2, "%s: [buf/i] [%p/%d]\n", __func__, buf, buf->vb.i); +unlock: + spin_unlock_irqrestore(&dev->slock, flags); + return rc; +} + +static const struct s2255_fmt *format_by_fourcc(int fourcc) +{ + unsigned int i; + for (i = 0; i < ARRAY_SIZE(formats); i++) { + if (-1 == formats[i].fourcc) + continue; + if (!jpeg_enable && ((formats[i].fourcc == V4L2_PIX_FMT_JPEG) || + (formats[i].fourcc == V4L2_PIX_FMT_MJPEG))) + continue; + if (formats[i].fourcc == fourcc) + return formats + i; + } + return NULL; +} + +/* video buffer vmalloc implementation based partly on VIVI driver which is + * Copyright (c) 2006 by + * Mauro Carvalho Chehab <mchehab--a.t--infradead.org> + * Ted Walther <ted--a.t--enumera.com> + * John Sokol <sokol--a.t--videotechnology.com> + * http://v4l.videotechnology.com/ + * + */ +static void s2255_fillbuff(struct s2255_channel *channel, + struct s2255_buffer *buf, int jpgsize) +{ + int pos = 0; + struct timeval ts; + const char *tmpbuf; + char *vbuf = videobuf_to_vmalloc(&buf->vb); + unsigned long last_frame; + + if (!vbuf) + return; + last_frame = channel->last_frame; + if (last_frame != -1) { + tmpbuf = + (const char *)channel->buffer.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: + case V4L2_PIX_FMT_MJPEG: + 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"); + } + channel->last_frame = -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 = channel->frame_count * 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; + struct s2255_channel *channel = fh->channel; + *size = channel->width * channel->height * (channel->fmt->depth >> 3); + + if (0 == *count) + *count = S2255_DEF_BUFS; + + if (*size * *count > vid_limit * 1024 * 1024) + *count = (vid_limit * 1024 * 1024) / *size; + + return 0; +} + +static void free_buffer(struct videobuf_queue *vq, struct s2255_buffer *buf) +{ + dprintk(4, "%s\n", __func__); + + 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_channel *channel = fh->channel; + struct s2255_buffer *buf = container_of(vb, struct s2255_buffer, vb); + int rc; + int w = channel->width; + int h = channel->height; + dprintk(4, "%s, field=%d\n", __func__, field); + if (channel->fmt == NULL) + return -EINVAL; + + if ((w < norm_minw(&channel->vdev)) || + (w > norm_maxw(&channel->vdev)) || + (h < norm_minh(&channel->vdev)) || + (h > norm_maxh(&channel->vdev))) { + dprintk(4, "invalid buffer prepare\n"); + return -EINVAL; + } + buf->vb.size = w * h * (channel->fmt->depth >> 3); + if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) { + dprintk(4, "invalid buffer prepare\n"); + return -EINVAL; + } + + buf->fmt = channel->fmt; + buf->vb.width = w; + buf->vb.height = h; + 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_channel *channel = fh->channel; + struct s2255_dmaqueue *vidq = &channel->vidq; + 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->idx); + 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_fh *fh) +{ + struct s2255_channel *channel = fh->channel; + /* is it free? */ + if (channel->resources) + return 0; /* no, someone else uses it */ + /* it's free, grab it */ + channel->resources = 1; + fh->resources = 1; + dprintk(1, "s2255: res: get\n"); + return 1; +} + +static int res_locked(struct s2255_fh *fh) +{ + return fh->channel->resources; +} + +static int res_check(struct s2255_fh *fh) +{ + return fh->resources; +} + + +static void res_free(struct s2255_fh *fh) +{ + struct s2255_channel *channel = fh->channel; + channel->resources = 0; + fh->resources = 0; + dprintk(1, "res: put\n"); +} + +static int vidioc_querymenu(struct file *file, void *priv, + struct v4l2_querymenu *qmenu) +{ + static const char *colorfilter[] = { + "Off", + "On", + NULL + }; + if (qmenu->id == V4L2_CID_PRIVATE_COLORFILTER) { + int i; + const char **menu_items = colorfilter; + for (i = 0; i < qmenu->index && menu_items[i]; i++) + ; /* do nothing (from v4l2-common.c) */ + if (menu_items[i] == NULL || menu_items[i][0] == '\0') + return -EINVAL; + strlcpy(qmenu->name, menu_items[qmenu->index], + sizeof(qmenu->name)); + return 0; + } + return v4l2_ctrl_query_menu(qmenu, NULL, NULL); +} + +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)); + usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info)); + 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 = f->index; + + if (index >= ARRAY_SIZE(formats)) + return -EINVAL; + if (!jpeg_enable && ((formats[index].fourcc == V4L2_PIX_FMT_JPEG) || + (formats[index].fourcc == V4L2_PIX_FMT_MJPEG))) + return -EINVAL; + 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; + struct s2255_channel *channel = fh->channel; + + f->fmt.pix.width = channel->width; + f->fmt.pix.height = channel->height; + f->fmt.pix.field = fh->vb_vidq.field; + f->fmt.pix.pixelformat = channel->fmt->fourcc; + f->fmt.pix.bytesperline = f->fmt.pix.width * (channel->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_channel *channel = fh->channel; + int is_ntsc; + is_ntsc = + (channel->vdev.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(50, "%s NTSC: %d suggested width: %d, height: %d\n", + __func__, is_ntsc, f->fmt.pix.width, f->fmt.pix.height); + if (is_ntsc) { + /* NTSC */ + if (f->fmt.pix.height >= NUM_LINES_1CIFS_NTSC * 2) { + f->fmt.pix.height = NUM_LINES_1CIFS_NTSC * 2; + 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) { + f->fmt.pix.width = LINE_SZ_4CIFS_PAL; + field = V4L2_FIELD_SEQ_TB; + } else if (f->fmt.pix.width >= LINE_SZ_2CIFS_PAL) { + f->fmt.pix.width = LINE_SZ_2CIFS_PAL; + field = V4L2_FIELD_TOP; + } else if (f->fmt.pix.width >= LINE_SZ_1CIFS_PAL) { + f->fmt.pix.width = LINE_SZ_1CIFS_PAL; + field = V4L2_FIELD_TOP; + } else { + f->fmt.pix.width = LINE_SZ_1CIFS_PAL; + field = V4L2_FIELD_TOP; + } + } + 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; + dprintk(50, "%s: set width %d height %d field %d\n", __func__, + f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field); + return 0; +} + +static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct s2255_fh *fh = priv; + struct s2255_channel *channel = fh->channel; + const struct s2255_fmt *fmt; + struct videobuf_queue *q = &fh->vb_vidq; + struct s2255_mode mode; + int ret; + + 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)) { + dprintk(1, "%s: channel busy\n", __func__); + ret = -EBUSY; + goto out_s_fmt; + } + mode = channel->mode; + channel->fmt = fmt; + channel->width = f->fmt.pix.width; + channel->height = f->fmt.pix.height; + fh->vb_vidq.field = f->fmt.pix.field; + fh->type = f->type; + if (channel->width > norm_minw(&channel->vdev)) { + if (channel->height > norm_minh(&channel->vdev)) { + if (channel->cap_parm.capturemode & + V4L2_MODE_HIGHQUALITY) + mode.scale = SCALE_4CIFSI; + else + mode.scale = SCALE_4CIFS; + } else + mode.scale = SCALE_2CIFS; + + } else { + mode.scale = SCALE_1CIFS; + } + /* color mode */ + switch (channel->fmt->fourcc) { + case V4L2_PIX_FMT_GREY: + mode.color &= ~MASK_COLOR; + mode.color |= COLOR_Y8; + break; + case V4L2_PIX_FMT_JPEG: + case V4L2_PIX_FMT_MJPEG: + mode.color &= ~MASK_COLOR; + mode.color |= COLOR_JPG; + mode.color |= (channel->jc.quality << 8); + break; + case V4L2_PIX_FMT_YUV422P: + mode.color &= ~MASK_COLOR; + mode.color |= COLOR_YUVPL; + break; + case V4L2_PIX_FMT_YUYV: + case V4L2_PIX_FMT_UYVY: + default: + mode.color &= ~MASK_COLOR; + mode.color |= COLOR_YUVPK; + break; + } + if ((mode.color & MASK_COLOR) != (channel->mode.color & MASK_COLOR)) + mode.restart = 1; |