diff options
Diffstat (limited to 'drivers/usb/ov511.h')
| -rw-r--r-- | drivers/usb/ov511.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/drivers/usb/ov511.h b/drivers/usb/ov511.h new file mode 100644 index 000000000..4dc7074bb --- /dev/null +++ b/drivers/usb/ov511.h @@ -0,0 +1,211 @@ +#ifndef __LINUX_OV511_H +#define __LINUX_OV511_H + +//#include <linux/list.h> + +#define OV511_DEBUG /* Turn on debug messages */ + +#ifdef OV511_DEBUG +# define PDEBUG(fmt, args...) printk("ov511: " fmt, ## args) +#else +# define PDEBUG(fmt, args...) /* Nothing */ +#endif + +/* Camera interface register numbers */ +#define OV511_REG_CAMERA_DELAY_MODE 0x10 +#define OV511_REG_CAMERA_EDGE_MODE 0x11 +#define OV511_REG_CAMERA_CLAMPED_PIXEL_NUM 0x12 +#define OV511_REG_CAMERA_CLAMPED_LINE_NUM 0x13 +#define OV511_REG_CAMERA_PIXEL_DIVISOR 0x14 +#define OV511_REG_CAMERA_LINE_DIVISOR 0x15 +#define OV511_REG_CAMERA_DATA_INPUT_SELECT 0x16 +#define OV511_REG_CAMERA_RESERVED_LINE_MODE 0x17 +#define OV511_REG_CAMERA_BITMASK 0x18 + +/* Snapshot mode camera interface register numbers */ +#define OV511_REG_SNAP_CAPTURED_FRAME 0x19 +#define OV511_REG_SNAP_CLAMPED_PIXEL_NUM 0x1A +#define OV511_REG_SNAP_CLAMPED_LINE_NUM 0x1B +#define OV511_REG_SNAP_PIXEL_DIVISOR 0x1C +#define OV511_REG_SNAP_LINE_DIVISOR 0x1D +#define OV511_REG_SNAP_DATA_INPUT_SELECT 0x1E +#define OV511_REG_SNAP_BITMASK 0x1F + +/* DRAM register numbers */ +#define OV511_REG_DRAM_ENABLE_FLOW_CONTROL 0x20 +#define OV511_REG_DRAM_READ_CYCLE_PREDICT 0x21 +#define OV511_REG_DRAM_MANUAL_READ_CYCLE 0x22 +#define OV511_REG_DRAM_REFRESH_COUNTER 0x23 + +/* ISO FIFO register numbers */ +#define OV511_REG_FIFO_PACKET_SIZE 0x30 +#define OV511_REG_FIFO_BITMASK 0x31 + +/* PIO register numbers */ +#define OV511_REG_PIO_BITMASK 0x38 +#define OV511_REG_PIO_DATA_PORT 0x39 +#define OV511_REG_PIO_BIST 0x3E + +/* I2C register numbers */ +#define OV511_REG_I2C_CONTROL 0x40 +#define OV511_REG_I2C_SLAVE_ID_WRITE 0x41 +#define OV511_REG_I2C_SUB_ADDRESS_3_BYTE 0x42 +#define OV511_REG_I2C_SUB_ADDRESS_2_BYTE 0x43 +#define OV511_REG_I2C_SLAVE_ID_READ 0x44 +#define OV511_REG_I2C_DATA_PORT 0x45 +#define OV511_REG_I2C_CLOCK_PRESCALER 0x46 +#define OV511_REG_I2C_TIME_OUT_COUNTER 0x47 + +/* I2C snapshot register numbers */ +#define OV511_REG_I2C_SNAP_SUB_ADDRESS 0x48 +#define OV511_REG_I2C_SNAP_DATA_PORT 0x49 + +/* System control register numbers */ +#define OV511_REG_SYSTEM_RESET 0x50 +#define OV511_RESET_UDC 0x01 +#define OV511_RESET_I2C 0x02 +#define OV511_RESET_FIFO 0x04 +#define OV511_RESET_OMNICE 0x08 +#define OV511_RESET_DRAM_INTF 0x10 +#define OV511_RESET_CAMERA_INTF 0x20 +#define OV511_RESET_OV511 0x40 +#define OV511_RESET_NOREGS 0x3F /* All but OV511 & regs */ +#define OV511_RESET_ALL 0x7F +#define OV511_REG_SYSTEM_CLOCK_DIVISOR 0x51 +#define OV511_REG_SYSTEM_SNAPSHOT 0x52 +#define OV511_REG_SYSTEM_INIT 0x53 +#define OV511_REG_SYSTEM_USER_DEFINED 0x5E +#define OV511_REG_SYSTEM_CUSTOM_ID 0x5F + +/* OmniCE register numbers */ +#define OV511_OMNICE_PREDICATION_HORIZ_Y 0x70 +#define OV511_OMNICE_PREDICATION_HORIZ_UV 0x71 +#define OV511_OMNICE_PREDICATION_VERT_Y 0x72 +#define OV511_OMNICE_PREDICATION_VERT_UV 0x73 +#define OV511_OMNICE_QUANTIZATION_HORIZ_Y 0x74 +#define OV511_OMNICE_QUANTIZATION_HORIZ_UV 0x75 +#define OV511_OMNICE_QUANTIZATION_VERT_Y 0x76 +#define OV511_OMNICE_QUANTIZATION_VERT_UV 0x77 +#define OV511_OMNICE_ENABLE 0x78 +#define OV511_OMNICE_LUT_ENABLE 0x79 +#define OV511_OMNICE_Y_LUT_BEGIN 0x80 +#define OV511_OMNICE_Y_LUT_END 0x9F +#define OV511_OMNICE_UV_LUT_BEGIN 0xA0 +#define OV511_OMNICE_UV_LUT_END 0xBF + +/* Alternate numbers for various max packet sizes */ +#define OV511_ALTERNATE_SIZE_992 0 +#define OV511_ALTERNATE_SIZE_993 1 +#define OV511_ALTERNATE_SIZE_768 2 +#define OV511_ALTERNATE_SIZE_769 3 +#define OV511_ALTERNATE_SIZE_512 4 +#define OV511_ALTERNATE_SIZE_513 5 +#define OV511_ALTERNATE_SIZE_257 6 +#define OV511_ALTERNATE_SIZE_0 7 + + +#define STREAM_BUF_SIZE (PAGE_SIZE * 4) + +#define SCRATCH_BUF_SIZE (STREAM_BUF_SIZE * 2) + +#define FRAMES_PER_DESC 10 /* FIXME - What should this be? */ +#define FRAME_SIZE_PER_DESC 512 /* FIXME - Shouldn't be hardcoded */ + +// FIXME - should this be 0x81 (endpoint address) or 0x01 (endpoint number)? +#define OV511_ENDPOINT_ADDRESS 0x81 /* Address of isoc endpoint */ + +// CAMERA SPECIFIC +// FIXME - these can vary between specific models +#define OV7610_I2C_WRITE_ID 0x42 +#define OV7610_I2C_READ_ID 0x43 +#define OV511_I2C_CLOCK_PRESCALER 0x03 + +/* Prototypes */ +int usb_ov511_reg_read(struct usb_device *dev, unsigned char reg); +int usb_ov511_reg_write(struct usb_device *dev, unsigned char reg, unsigned char value); + + +enum { + STATE_SCANNING, /* Scanning for start */ + STATE_HEADER, /* Parsing header */ + STATE_LINES, /* Parsing lines */ +}; + +struct ov511_frame_header { + // FIXME - nothing here yet +}; + +struct usb_device; + +struct ov511_sbuf { + char *data; + urb_t *urb; +}; + +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 */ +}; + +struct ov511_frame { + char *data; /* Frame buffer */ + + struct ov511_frame_header header; /* Header from stream */ + + int width; /* Width application is expecting */ + int height; /* Height */ + + int hdrwidth; /* Width the frame actually is */ + int hdrheight; /* Height */ + + volatile int grabstate; /* State of grabbing */ + int scanstate; /* State of scanning */ + + int curline; /* Line of frame we're working on */ + int curpix; + + long scanlength; /* uncompressed, raw data length of frame */ + long bytes_read; /* amount of scanlength that has been read from *data */ + + wait_queue_head_t wq; /* Processes waiting */ +}; + +#define OV511_NUMFRAMES 2 +#define OV511_NUMSBUF 2 + +struct usb_ov511 { + struct video_device vdev; + + /* Device structure */ + struct usb_device *dev; + + unsigned char customid; /* Type of camera */ + + unsigned char iface; + + struct semaphore lock; + int user; /* user count for exclusive use */ + + int streaming; /* Are we streaming Isochronous? */ + int grabbing; /* Are we grabbing? */ + + int compress; /* Should the next frame be compressed? */ + + char *fbuf; /* Videodev buffer area */ + + int curframe; /* Current receiving sbuf */ + struct ov511_frame frame[OV511_NUMFRAMES]; + + int cursbuf; /* Current receiving sbuf */ + struct ov511_sbuf sbuf[OV511_NUMSBUF]; + + /* Scratch space from the Isochronous pipe */ + unsigned char scratch[SCRATCH_BUF_SIZE]; + int scratchlen; +}; + +#endif + |