#define MAX_BYTES_PER_PIXEL 4
#define MIN_FRAME_WIDTH 64
-#define MAX_USB_WIDTH 320 //384
-#define MAX_FRAME_WIDTH 320 //384 /*streching sometimes causes crashes*/
+#define MAX_USB_WIDTH 320 /* 384 */
+#define MAX_FRAME_WIDTH 320 /* 384 */ /* streching sometimes causes crashes*/
#define MIN_FRAME_HEIGHT 48
-#define MAX_USB_HEIGHT 240 //288
-#define MAX_FRAME_HEIGHT 240 //288 /*Streching sometimes causes crashes*/
+#define MAX_USB_HEIGHT 240 /* 288 */
+#define MAX_FRAME_HEIGHT 240 /* 288 */ /* Streching sometimes causes crashes*/
-#define MAX_FRAME_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * MAX_BYTES_PER_PIXEL)
-#define USBVISION_CLIPMASK_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT / 8) //bytesize of clipmask
+#define MAX_FRAME_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * MAX_BYTES_PER_PIXEL)
+#define USBVISION_CLIPMASK_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT / 8) /* bytesize of clipmask */
#define USBVISION_URB_FRAMES 32
#define USBVISION_NUMFRAMES 3 /* Maximum number of frames an application can get */
#define USBVISION_NUMSBUF 2 /* Dimensioning the USB S buffering */
-#define USBVISION_POWEROFF_TIME 3 * (HZ) // 3 seconds
+#define USBVISION_POWEROFF_TIME (3 * HZ) /* 3 seconds */
#define FRAMERATE_MIN 0
};
/* This macro restricts an int variable to an inclusive range */
-#define RESTRICT_TO_RANGE(v,mi,ma) { if ((v) < (mi)) (v) = (mi); else if ((v) > (ma)) (v) = (ma); }
+#define RESTRICT_TO_RANGE(v, mi, ma) \
+ { if ((v) < (mi)) (v) = (mi); else if ((v) > (ma)) (v) = (ma); }
/*
* We use macros to do YUV -> RGB conversion because this is
* Make sure the output values are within [0..255] range.
*/
#define LIMIT_RGB(x) (((x) < 0) ? 0 : (((x) > 255) ? 255 : (x)))
-#define YUV_TO_RGB_BY_THE_BOOK(my,mu,mv,mr,mg,mb) { \
- int mm_y, mm_yc, mm_u, mm_v, mm_r, mm_g, mm_b; \
- mm_y = (my) - 16; \
- mm_u = (mu) - 128; \
- mm_v = (mv) - 128; \
- mm_yc= mm_y * 76284; \
- mm_b = (mm_yc + 132252*mm_v ) >> 16; \
- mm_g = (mm_yc - 53281*mm_u - 25625*mm_v ) >> 16; \
- mm_r = (mm_yc + 104595*mm_u ) >> 16; \
- mb = LIMIT_RGB(mm_b); \
- mg = LIMIT_RGB(mm_g); \
- mr = LIMIT_RGB(mm_r); \
+#define YUV_TO_RGB_BY_THE_BOOK(my, mu, mv, mr, mg, mb) { \
+ int mm_y, mm_yc, mm_u, mm_v, mm_r, mm_g, mm_b; \
+ mm_y = (my) - 16; \
+ mm_u = (mu) - 128; \
+ mm_v = (mv) - 128; \
+ mm_yc = mm_y * 76284; \
+ mm_b = (mm_yc + 132252 * mm_v) >> 16; \
+ mm_g = (mm_yc - 53281 * mm_u - 25625 * mm_v) >> 16; \
+ mm_r = (mm_yc + 104595 * mm_u) >> 16; \
+ mb = LIMIT_RGB(mm_b); \
+ mg = LIMIT_RGB(mm_g); \
+ mr = LIMIT_RGB(mm_r); \
}
/* Debugging aid */
wait_queue_head_t wq; \
init_waitqueue_head(&wq); \
printk(KERN_INFO "Say: %s\n", what); \
- interruptible_sleep_on_timeout (&wq, HZ*3); \
+ interruptible_sleep_on_timeout(&wq, HZ * 3); \
}
/*
/* ----------------------------------------------------------------- */
/* usbvision video structures */
/* ----------------------------------------------------------------- */
-enum ScanState {
- ScanState_Scanning, /* Scanning for header */
- ScanState_Lines /* Parsing lines */
+enum scan_state {
+ scan_state_scanning, /* Scanning for header */
+ scan_state_lines /* Parsing lines */
};
/* Completion states of the data parser */
-enum ParseState {
- ParseState_Continue, /* Just parse next item */
- ParseState_NextFrame, /* Frame done, send it to V4L */
- ParseState_Out, /* Not enough data for frame */
- ParseState_EndParse /* End parsing */
+enum parse_state {
+ parse_state_continue, /* Just parse next item */
+ parse_state_next_frame, /* Frame done, send it to V4L */
+ parse_state_out, /* Not enough data for frame */
+ parse_state_end_parse /* End parsing */
};
-enum FrameState {
- FrameState_Unused, /* Unused (no MCAPTURE) */
- FrameState_Ready, /* Ready to start grabbing */
- FrameState_Grabbing, /* In the process of being grabbed into */
- FrameState_Done, /* Finished grabbing, but not been synced yet */
- FrameState_DoneHold, /* Are syncing or reading */
- FrameState_Error, /* Something bad happened while processing */
+enum frame_state {
+ frame_state_unused, /* Unused (no MCAPTURE) */
+ frame_state_ready, /* Ready to start grabbing */
+ frame_state_grabbing, /* In the process of being grabbed into */
+ frame_state_done, /* Finished grabbing, but not been synced yet */
+ frame_state_done_hold, /* Are syncing or reading */
+ frame_state_error, /* Something bad happened while processing */
};
/* stream states */
-enum StreamState {
- Stream_Off, /* Driver streaming is completely OFF */
- Stream_Idle, /* Driver streaming is ready to be put ON by the application */
- Stream_Interrupt, /* Driver streaming must be interrupted */
- Stream_On, /* Driver streaming is put ON by the application */
+enum stream_state {
+ stream_off, /* Driver streaming is completely OFF */
+ stream_idle, /* Driver streaming is ready to be put ON by the application */
+ stream_interrupt, /* Driver streaming must be interrupted */
+ stream_on, /* Driver streaming is put ON by the application */
};
-enum IsocState {
- IsocState_InFrame, /* Isoc packet is member of frame */
- IsocState_NoFrame, /* Isoc packet is not member of any frame */
+enum isoc_state {
+ isoc_state_in_frame, /* Isoc packet is member of frame */
+ isoc_state_no_frame, /* Isoc packet is not member of any frame */
};
struct usb_device;
struct urb *urb;
};
-#define USBVISION_MAGIC_1 0x55
-#define USBVISION_MAGIC_2 0xAA
+#define USBVISION_MAGIC_1 0x55
+#define USBVISION_MAGIC_2 0xAA
#define USBVISION_HEADER_LENGTH 0x0c
#define USBVISION_SAA7111_ADDR 0x48
#define USBVISION_SAA7113_ADDR 0x4a
struct usbvision_frame_header {
unsigned char magic_1; /* 0 magic */
unsigned char magic_2; /* 1 magic */
- unsigned char headerLength; /* 2 */
- unsigned char frameNum; /* 3 */
- unsigned char framePhase; /* 4 */
- unsigned char frameLatency; /* 5 */
- unsigned char dataFormat; /* 6 */
- unsigned char formatParam; /* 7 */
- unsigned char frameWidthLo; /* 8 */
- unsigned char frameWidthHi; /* 9 */
- unsigned char frameHeightLo; /* 10 */
- unsigned char frameHeightHi; /* 11 */
- __u16 frameWidth; /* 8 - 9 after endian correction*/
- __u16 frameHeight; /* 10 - 11 after endian correction*/
+ unsigned char header_length; /* 2 */
+ unsigned char frame_num; /* 3 */
+ unsigned char frame_phase; /* 4 */
+ unsigned char frame_latency; /* 5 */
+ unsigned char data_format; /* 6 */
+ unsigned char format_param; /* 7 */
+ unsigned char frame_width_lo; /* 8 */
+ unsigned char frame_width_hi; /* 9 */
+ unsigned char frame_height_lo; /* 10 */
+ unsigned char frame_height_hi; /* 11 */
+ __u16 frame_width; /* 8 - 9 after endian correction*/
+ __u16 frame_height; /* 10 - 11 after endian correction*/
};
struct usbvision_frame {
char *data; /* Frame buffer */
- struct usbvision_frame_header isocHeader; /* Header from stream */
+ struct usbvision_frame_header isoc_header; /* Header from stream */
int width; /* Width application is expecting */
int height; /* Height */
struct usbvision_v4l2_format_st v4l2_format; /* format the user needs*/
int v4l2_linesize; /* bytes for one videoline*/
struct timeval timestamp;
- int sequence; // How many video frames we send to user
+ int sequence; /* How many video frames we send to user */
};
#define CODEC_SAA7113 7113
#define BRIDGE_NT1005 1005
struct usbvision_device_data_st {
- __u64 VideoNorm;
- const char *ModelString;
- int Interface; /* to handle special interface number like BELKIN and Hauppauge WinTV-USB II */
- __u16 Codec;
- unsigned VideoChannels:3;
- unsigned AudioChannels:2;
- unsigned Radio:1;
+ __u64 video_norm;
+ const char *model_string;
+ int interface; /* to handle special interface number like BELKIN and Hauppauge WinTV-USB II */
+ __u16 codec;
+ unsigned video_channels:3;
+ unsigned audio_channels:2;
+ unsigned radio:1;
unsigned vbi:1;
- unsigned Tuner:1;
- unsigned Vin_Reg1_override:1; /* Override default value with */
- unsigned Vin_Reg2_override:1; /* Vin_Reg1, Vin_Reg2, etc. */
- unsigned Dvi_yuv_override:1;
- __u8 Vin_Reg1;
- __u8 Vin_Reg2;
- __u8 Dvi_yuv;
- __u8 TunerType;
- __s16 X_Offset;
- __s16 Y_Offset;
+ unsigned tuner:1;
+ unsigned vin_reg1_override:1; /* Override default value with */
+ unsigned vin_reg2_override:1; /* vin_reg1, vin_reg2, etc. */
+ unsigned dvi_yuv_override:1;
+ __u8 vin_reg1;
+ __u8 vin_reg2;
+ __u8 dvi_yuv;
+ __u8 tuner_type;
+ __s16 x_offset;
+ __s16 y_offset;
};
/* Declared on usbvision-cards.c */
struct usb_usbvision {
struct v4l2_device v4l2_dev;
- struct video_device *vdev; /* Video Device */
- struct video_device *rdev; /* Radio Device */
+ struct video_device *vdev; /* Video Device */
+ struct video_device *rdev; /* Radio Device */
/* i2c Declaration Section*/
struct i2c_adapter i2c_adap;
int registered_i2c;
- struct urb *ctrlUrb;
- unsigned char ctrlUrbBuffer[8];
- int ctrlUrbBusy;
- struct usb_ctrlrequest ctrlUrbSetup;
- wait_queue_head_t ctrlUrb_wq; // Processes waiting
+ struct urb *ctrl_urb;
+ unsigned char ctrl_urb_buffer[8];
+ int ctrl_urb_busy;
+ struct usb_ctrlrequest ctrl_urb_setup;
+ wait_queue_head_t ctrl_urb_wq; /* Processes waiting */
/* configuration part */
int have_tuner;
int tuner_type;
- int bridgeType; // NT1003, NT1004, NT1005
+ int bridge_type; /* NT1003, NT1004, NT1005 */
int radio;
- int video_inputs; // # of inputs
+ int video_inputs; /* # of inputs */
unsigned long freq;
- int AudioMute;
- int AudioChannel;
- int isocMode; // format of video data for the usb isoc-transfer
- unsigned int nr; // Number of the device
+ int audio_mute;
+ int audio_channel;
+ int isoc_mode; /* format of video data for the usb isoc-transfer */
+ unsigned int nr; /* Number of the device */
/* Device structure */
struct usb_device *dev;
/* usb transfer */
int num_alt; /* Number of alternative settings */
- unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
+ unsigned int *alt_max_pkt_size; /* array of max_packet_size */
unsigned char iface; /* Video interface number */
- unsigned char ifaceAlt; /* Alt settings */
- unsigned char Vin_Reg2_Preset;
- struct mutex lock;
- struct timer_list powerOffTimer;
- struct work_struct powerOffWork;
+ unsigned char iface_alt; /* Alt settings */
+ unsigned char vin_reg2_preset;
+ struct mutex v4l2_lock;
+ struct timer_list power_off_timer;
+ struct work_struct power_off_work;
int power; /* is the device powered on? */
int user; /* user count for exclusive use */
int initialized; /* Had we already sent init sequence? */
- int DevModel; /* What type of USBVISION device we got? */
- enum StreamState streaming; /* Are we streaming Isochronous? */
+ int dev_model; /* What type of USBVISION device we got? */
+ enum stream_state streaming; /* Are we streaming Isochronous? */
int last_error; /* What calamity struck us? */
int curwidth; /* width of the frame the device is currently set to*/
- int curheight; /* height of the frame the device is currently set to*/
+ int curheight; /* height of the frame the device is currently set to*/
int stretch_width; /* stretch-factor for frame width (from usb to screen)*/
int stretch_height; /* stretch-factor for frame height (from usb to screen)*/
char *fbuf; /* Videodev buffer area for mmap*/
struct list_head inqueue, outqueue; /* queued frame list and ready to dequeue frame list */
wait_queue_head_t wait_frame; /* Processes waiting */
wait_queue_head_t wait_stream; /* Processes waiting */
- struct usbvision_frame *curFrame; // pointer to current frame, set by usbvision_find_header
- struct usbvision_frame frame[USBVISION_NUMFRAMES]; // frame buffer
- int num_frames; // number of frames allocated
- struct usbvision_sbuf sbuf[USBVISION_NUMSBUF]; // S buffering
+ struct usbvision_frame *cur_frame; /* pointer to current frame, set by usbvision_find_header */
+ struct usbvision_frame frame[USBVISION_NUMFRAMES]; /* frame buffer */
+ int num_frames; /* number of frames allocated */
+ struct usbvision_sbuf sbuf[USBVISION_NUMSBUF]; /* S buffering */
volatile int remove_pending; /* If set then about to exit */
/* Scratch space from the Isochronous Pipe.*/
int scratch_headermarker[USBVISION_NUM_HEADERMARKER];
int scratch_headermarker_read_ptr;
int scratch_headermarker_write_ptr;
- enum IsocState isocstate;
+ enum isoc_state isocstate;
struct usbvision_v4l2_format_st palette;
struct v4l2_capability vcap; /* Video capabilities */
unsigned int ctl_input; /* selected input */
- v4l2_std_id tvnormId; /* selected tv norm */
+ v4l2_std_id tvnorm_id; /* selected tv norm */
unsigned char video_endp; /* 0x82 for USBVISION devices based */
- // Decompression stuff:
- unsigned char *IntraFrameBuffer; /* Buffer for reference frame */
- int BlockPos; //for test only
- int requestIntra; // 0 = normal; 1 = intra frame is requested;
- int lastIsocFrameNum; // check for lost isoc frames
- int isocPacketSize; // need to calculate usedBandwidth
- int usedBandwidth; // used bandwidth 0-100%, need to set comprLevel
- int comprLevel; // How strong (100) or weak (0) is compression
- int lastComprLevel; // How strong (100) or weak (0) was compression
+ /* Decompression stuff: */
+ unsigned char *intra_frame_buffer; /* Buffer for reference frame */
+ int block_pos; /* for test only */
+ int request_intra; /* 0 = normal; 1 = intra frame is requested; */
+ int last_isoc_frame_num; /* check for lost isoc frames */
+ int isoc_packet_size; /* need to calculate used_bandwidth */
+ int used_bandwidth; /* used bandwidth 0-100%, need to set compr_level */
+ int compr_level; /* How strong (100) or weak (0) is compression */
+ int last_compr_level; /* How strong (100) or weak (0) was compression */
int usb_bandwidth; /* Mbit/s */
/* Statistics that can be overlayed on the screen */
- unsigned long isocUrbCount; // How many URBs we received so far
+ unsigned long isoc_urb_count; /* How many URBs we received so far */
unsigned long urb_length; /* Length of last URB */
- unsigned long isocDataCount; /* How many bytes we received */
+ unsigned long isoc_data_count; /* How many bytes we received */
unsigned long header_count; /* How many frame headers we found */
unsigned long scratch_ovf_count; /* How many times we overflowed scratch */
- unsigned long isocSkipCount; /* How many empty ISO packets received */
- unsigned long isocErrCount; /* How many bad ISO packets received */
- unsigned long isocPacketCount; // How many packets we totally got
- unsigned long timeInIrq; // How long do we need for interrupt
- int isocMeasureBandwidthCount;
- int frame_num; // How many video frames we send to user
- int maxStripLen; // How big is the biggest strip
- int comprBlockPos;
- int stripLenErrors; // How many times was BlockPos greater than StripLen
- int stripMagicErrors;
- int stripLineNumberErrors;
- int ComprBlockTypes[4];
+ unsigned long isoc_skip_count; /* How many empty ISO packets received */
+ unsigned long isoc_err_count; /* How many bad ISO packets received */
+ unsigned long isoc_packet_count; /* How many packets we totally got */
+ unsigned long time_in_irq; /* How long do we need for interrupt */
+ int isoc_measure_bandwidth_count;
+ int frame_num; /* How many video frames we send to user */
+ int max_strip_len; /* How big is the biggest strip */
+ int comprblock_pos;
+ int strip_len_errors; /* How many times was block_pos greater than strip_len */
+ int strip_magic_errors;
+ int strip_line_number_errors;
+ int compr_block_types[4];
};
static inline struct usb_usbvision *to_usbvision(struct v4l2_device *v4l2_dev)
int usbvision_decompress_alloc(struct usb_usbvision *usbvision);
void usbvision_decompress_free(struct usb_usbvision *usbvision);
-int usbvision_setup(struct usb_usbvision *usbvision,int format);
+int usbvision_setup(struct usb_usbvision *usbvision, int format);
int usbvision_init_isoc(struct usb_usbvision *usbvision);
int usbvision_restart_isoc(struct usb_usbvision *usbvision);
void usbvision_stop_isoc(struct usb_usbvision *usbvision);
int usbvision_set_alternate(struct usb_usbvision *dev);
-int usbvision_set_audio(struct usb_usbvision *usbvision, int AudioChannel);
+int usbvision_set_audio(struct usb_usbvision *usbvision, int audio_channel);
int usbvision_audio_off(struct usb_usbvision *usbvision);
int usbvision_begin_streaming(struct usb_usbvision *usbvision);
int usbvision_set_input(struct usb_usbvision *usbvision);
int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height);
-void usbvision_init_powerOffTimer(struct usb_usbvision *usbvision);
-void usbvision_set_powerOffTimer(struct usb_usbvision *usbvision);
-void usbvision_reset_powerOffTimer(struct usb_usbvision *usbvision);
+void usbvision_init_power_off_timer(struct usb_usbvision *usbvision);
+void usbvision_set_power_off_timer(struct usb_usbvision *usbvision);
+void usbvision_reset_power_off_timer(struct usb_usbvision *usbvision);
int usbvision_power_off(struct usb_usbvision *usbvision);
int usbvision_power_on(struct usb_usbvision *usbvision);
projects / mv-sheeva.git / blobdiff