diff options
Diffstat (limited to 'drivers/media/video/se401.h')
| -rw-r--r-- | drivers/media/video/se401.h | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/drivers/media/video/se401.h b/drivers/media/video/se401.h new file mode 100644 index 000000000000..a7a216bd4413 --- /dev/null +++ b/drivers/media/video/se401.h @@ -0,0 +1,234 @@ + +#ifndef __LINUX_se401_H +#define __LINUX_se401_H + +#include <asm/uaccess.h> +#include <linux/videodev.h> +#include <linux/smp_lock.h> +#include <linux/mutex.h> + +#define se401_DEBUG /* Turn on debug messages */ + +#ifdef se401_DEBUG +# define PDEBUG(level, fmt, args...) \ +if (debug >= level) info("[" __PRETTY_FUNCTION__ ":%d] " fmt, __LINE__ , ## args) +#else +# define PDEBUG(level, fmt, args...) do {} while(0) +#endif + +/* An almost drop-in replacement for sleep_on_interruptible */ +#define wait_interruptible(test, queue, wait) \ +{ \ + add_wait_queue(queue, wait); \ + set_current_state(TASK_INTERRUPTIBLE); \ + if (test) \ + schedule(); \ + remove_wait_queue(queue, wait); \ + set_current_state(TASK_RUNNING); \ + if (signal_pending(current)) \ + break; \ +} + +#define SE401_REQ_GET_CAMERA_DESCRIPTOR 0x06 +#define SE401_REQ_START_CONTINUOUS_CAPTURE 0x41 +#define SE401_REQ_STOP_CONTINUOUS_CAPTURE 0x42 +#define SE401_REQ_CAPTURE_FRAME 0x43 +#define SE401_REQ_GET_BRT 0x44 +#define SE401_REQ_SET_BRT 0x45 +#define SE401_REQ_GET_WIDTH 0x4c +#define SE401_REQ_SET_WIDTH 0x4d +#define SE401_REQ_GET_HEIGHT 0x4e +#define SE401_REQ_SET_HEIGHT 0x4f +#define SE401_REQ_GET_OUTPUT_MODE 0x50 +#define SE401_REQ_SET_OUTPUT_MODE 0x51 +#define SE401_REQ_GET_EXT_FEATURE 0x52 +#define SE401_REQ_SET_EXT_FEATURE 0x53 +#define SE401_REQ_CAMERA_POWER 0x56 +#define SE401_REQ_LED_CONTROL 0x57 +#define SE401_REQ_BIOS 0xff + +#define SE401_BIOS_READ 0x07 + +#define SE401_FORMAT_BAYER 0x40 + +/* Hyundai hv7131b registers + 7121 and 7141 should be the same (haven't really checked...) */ +/* Mode registers: */ +#define HV7131_REG_MODE_A 0x00 +#define HV7131_REG_MODE_B 0x01 +#define HV7131_REG_MODE_C 0x02 +/* Frame registers: */ +#define HV7131_REG_FRSU 0x10 +#define HV7131_REG_FRSL 0x11 +#define HV7131_REG_FCSU 0x12 +#define HV7131_REG_FCSL 0x13 +#define HV7131_REG_FWHU 0x14 +#define HV7131_REG_FWHL 0x15 +#define HV7131_REG_FWWU 0x16 +#define HV7131_REG_FWWL 0x17 +/* Timing registers: */ +#define HV7131_REG_THBU 0x20 +#define HV7131_REG_THBL 0x21 +#define HV7131_REG_TVBU 0x22 +#define HV7131_REG_TVBL 0x23 +#define HV7131_REG_TITU 0x25 +#define HV7131_REG_TITM 0x26 +#define HV7131_REG_TITL 0x27 +#define HV7131_REG_TMCD 0x28 +/* Adjust Registers: */ +#define HV7131_REG_ARLV 0x30 +#define HV7131_REG_ARCG 0x31 +#define HV7131_REG_AGCG 0x32 +#define HV7131_REG_ABCG 0x33 +#define HV7131_REG_APBV 0x34 +#define HV7131_REG_ASLP 0x54 +/* Offset Registers: */ +#define HV7131_REG_OFSR 0x50 +#define HV7131_REG_OFSG 0x51 +#define HV7131_REG_OFSB 0x52 +/* REset level statistics registers: */ +#define HV7131_REG_LOREFNOH 0x57 +#define HV7131_REG_LOREFNOL 0x58 +#define HV7131_REG_HIREFNOH 0x59 +#define HV7131_REG_HIREFNOL 0x5a + +/* se401 registers */ +#define SE401_OPERATINGMODE 0x2000 + + +/* size of usb transfers */ +#define SE401_PACKETSIZE 4096 +/* number of queued bulk transfers to use, should be about 8 */ +#define SE401_NUMSBUF 1 +/* read the usb specs for this one :) */ +#define SE401_VIDEO_ENDPOINT 1 +#define SE401_BUTTON_ENDPOINT 2 +/* number of frames supported by the v4l part */ +#define SE401_NUMFRAMES 2 +/* scratch buffers for passing data to the decoders */ +#define SE401_NUMSCRATCH 32 +/* maximum amount of data in a JangGu packet */ +#define SE401_VLCDATALEN 1024 +/* number of nul sized packets to receive before kicking the camera */ +#define SE401_MAX_NULLPACKETS 4000 +/* number of decoding errors before kicking the camera */ +#define SE401_MAX_ERRORS 200 + +struct usb_device; + +struct se401_sbuf { + unsigned char *data; +}; + +enum { + FRAME_UNUSED, /* Unused (no MCAPTURE) */ + FRAME_READY, /* Ready to start grabbing */ + FRAME_GRABBING, /* In the process of being grabbed into */ + FRAME_DONE, /* Finished grabbing, but not been synced yet */ + FRAME_ERROR, /* Something bad happened while processing */ +}; + +enum { + FMT_BAYER, + FMT_JANGGU, +}; + +enum { + BUFFER_UNUSED, + BUFFER_READY, + BUFFER_BUSY, + BUFFER_DONE, +}; + +struct se401_scratch { + unsigned char *data; + volatile int state; + int offset; + int length; +}; + +struct se401_frame { + unsigned char *data; /* Frame buffer */ + + volatile int grabstate; /* State of grabbing */ + + unsigned char *curline; + int curlinepix; + int curpix; +}; + +struct usb_se401 { + struct video_device vdev; + + /* Device structure */ + struct usb_device *dev; + + unsigned char iface; + + char *camera_name; + + int change; + int brightness; + int hue; + int rgain; + int ggain; + int bgain; + int expose_h; + int expose_m; + int expose_l; + int resetlevel; + + int enhance; + + int format; + int sizes; + int *width; + int *height; + int cwidth; /* current width */ + int cheight; /* current height */ + int palette; + int maxframesize; + int cframesize; /* current framesize */ + + struct mutex lock; + int user; /* user count for exclusive use */ + int removed; /* device disconnected */ + + int streaming; /* Are we streaming video? */ + + char *fbuf; /* Videodev buffer area */ + + struct urb *urb[SE401_NUMSBUF]; + struct urb *inturb; + + int button; + int buttonpressed; + + int curframe; /* Current receiving frame */ + struct se401_frame frame[SE401_NUMFRAMES]; + int readcount; + int framecount; + int error; + int dropped; + + int scratch_next; + int scratch_use; + int scratch_overflow; + struct se401_scratch scratch[SE401_NUMSCRATCH]; + + /* Decoder specific data: */ + unsigned char vlcdata[SE401_VLCDATALEN]; + int vlcdatapos; + int bayeroffset; + + struct se401_sbuf sbuf[SE401_NUMSBUF]; + + wait_queue_head_t wq; /* Processes waiting */ + + int nullpackets; +}; + + + +#endif + |