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Diffstat (limited to 'drivers/media/usb/usbvision/usbvision.h')
| -rw-r--r-- | drivers/media/usb/usbvision/usbvision.h | 512 |
1 files changed, 512 insertions, 0 deletions
diff --git a/drivers/media/usb/usbvision/usbvision.h b/drivers/media/usb/usbvision/usbvision.h new file mode 100644 index 000000000..6ecdcd582 --- /dev/null +++ b/drivers/media/usb/usbvision/usbvision.h @@ -0,0 +1,512 @@ +/* + * USBVISION.H + * usbvision header file + * + * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> + * Dwaine Garden <dwainegarden@rogers.com> + * + * + * Report problems to v4l MailingList: linux-media@vger.kernel.org + * + * This module is part of usbvision driver project. + * Updates to driver completed by Dwaine P. Garden + * v4l2 conversion by Thierry Merle <thierry.merle@free.fr> + * + * 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. + */ + + +#ifndef __LINUX_USBVISION_H +#define __LINUX_USBVISION_H + +#include <linux/list.h> +#include <linux/usb.h> +#include <linux/i2c.h> +#include <linux/mutex.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ctrls.h> +#include <media/tuner.h> +#include <linux/videodev2.h> + +#define USBVISION_DEBUG /* Turn on debug messages */ + +#define USBVISION_PWR_REG 0x00 + #define USBVISION_SSPND_EN (1 << 1) + #define USBVISION_RES2 (1 << 2) + #define USBVISION_PWR_VID (1 << 5) + #define USBVISION_E2_EN (1 << 7) +#define USBVISION_CONFIG_REG 0x01 +#define USBVISION_ADRS_REG 0x02 +#define USBVISION_ALTER_REG 0x03 +#define USBVISION_FORCE_ALTER_REG 0x04 +#define USBVISION_STATUS_REG 0x05 +#define USBVISION_IOPIN_REG 0x06 + #define USBVISION_IO_1 (1 << 0) + #define USBVISION_IO_2 (1 << 1) + #define USBVISION_AUDIO_IN 0 + #define USBVISION_AUDIO_TV 1 + #define USBVISION_AUDIO_RADIO 2 + #define USBVISION_AUDIO_MUTE 3 +#define USBVISION_SER_MODE 0x07 + #define USBVISION_CLK_OUT (1 << 0) + #define USBVISION_DAT_IO (1 << 1) + #define USBVISION_SENS_OUT (1 << 2) + #define USBVISION_SER_MODE_SOFT (0 << 4) + #define USBVISION_SER_MODE_SIO (1 << 4) +#define USBVISION_SER_ADRS 0x08 +#define USBVISION_SER_CONT 0x09 +#define USBVISION_SER_DAT1 0x0A +#define USBVISION_SER_DAT2 0x0B +#define USBVISION_SER_DAT3 0x0C +#define USBVISION_SER_DAT4 0x0D +#define USBVISION_EE_DATA 0x0E +#define USBVISION_EE_LSBAD 0x0F +#define USBVISION_EE_CONT 0x10 +#define USBVISION_DRM_CONT 0x12 + #define USBVISION_REF (1 << 0) + #define USBVISION_RES_UR (1 << 2) + #define USBVISION_RES_FDL (1 << 3) + #define USBVISION_RES_VDW (1 << 4) +#define USBVISION_DRM_PRM1 0x13 +#define USBVISION_DRM_PRM2 0x14 +#define USBVISION_DRM_PRM3 0x15 +#define USBVISION_DRM_PRM4 0x16 +#define USBVISION_DRM_PRM5 0x17 +#define USBVISION_DRM_PRM6 0x18 +#define USBVISION_DRM_PRM7 0x19 +#define USBVISION_DRM_PRM8 0x1A +#define USBVISION_VIN_REG1 0x1B + #define USBVISION_8_422_SYNC 0x01 + #define USBVISION_16_422_SYNC 0x02 + #define USBVISION_VSNC_POL (1 << 3) + #define USBVISION_HSNC_POL (1 << 4) + #define USBVISION_FID_POL (1 << 5) + #define USBVISION_HVALID_PO (1 << 6) + #define USBVISION_VCLK_POL (1 << 7) +#define USBVISION_VIN_REG2 0x1C + #define USBVISION_AUTO_FID (1 << 0) + #define USBVISION_NONE_INTER (1 << 1) + #define USBVISION_NOHVALID (1 << 2) + #define USBVISION_UV_ID (1 << 3) + #define USBVISION_FIX_2C (1 << 4) + #define USBVISION_SEND_FID (1 << 5) + #define USBVISION_KEEP_BLANK (1 << 7) +#define USBVISION_LXSIZE_I 0x1D +#define USBVISION_MXSIZE_I 0x1E +#define USBVISION_LYSIZE_I 0x1F +#define USBVISION_MYSIZE_I 0x20 +#define USBVISION_LX_OFFST 0x21 +#define USBVISION_MX_OFFST 0x22 +#define USBVISION_LY_OFFST 0x23 +#define USBVISION_MY_OFFST 0x24 +#define USBVISION_FRM_RATE 0x25 +#define USBVISION_LXSIZE_O 0x26 +#define USBVISION_MXSIZE_O 0x27 +#define USBVISION_LYSIZE_O 0x28 +#define USBVISION_MYSIZE_O 0x29 +#define USBVISION_FILT_CONT 0x2A +#define USBVISION_VO_MODE 0x2B +#define USBVISION_INTRA_CYC 0x2C +#define USBVISION_STRIP_SZ 0x2D +#define USBVISION_FORCE_INTRA 0x2E +#define USBVISION_FORCE_UP 0x2F +#define USBVISION_BUF_THR 0x30 +#define USBVISION_DVI_YUV 0x31 +#define USBVISION_AUDIO_CONT 0x32 +#define USBVISION_AUD_PK_LEN 0x33 +#define USBVISION_BLK_PK_LEN 0x34 +#define USBVISION_PCM_THR1 0x38 +#define USBVISION_PCM_THR2 0x39 +#define USBVISION_DIST_THR_L 0x3A +#define USBVISION_DIST_THR_H 0x3B +#define USBVISION_MAX_DIST_L 0x3C +#define USBVISION_MAX_DIST_H 0x3D +#define USBVISION_OP_CODE 0x33 + +#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 MIN_FRAME_HEIGHT 48 +#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 USBVISION_URB_FRAMES 32 + +#define USBVISION_NUM_HEADERMARKER 20 +#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 FRAMERATE_MIN 0 +#define FRAMERATE_MAX 31 + +enum { + ISOC_MODE_YUV422 = 0x03, + ISOC_MODE_YUV420 = 0x14, + ISOC_MODE_COMPRESS = 0x60, +}; + +/* This macro restricts an int variable to an inclusive range */ +#define RESTRICT_TO_RANGE(v, mi, ma) \ + { if (((int)v) < (mi)) (v) = (mi); else if ((v) > (ma)) (v) = (ma); } + +/* + * We use macros to do YUV -> RGB conversion because this is + * very important for speed and totally unimportant for size. + * + * YUV -> RGB Conversion + * --------------------- + * + * B = 1.164*(Y-16) + 2.018*(V-128) + * G = 1.164*(Y-16) - 0.813*(U-128) - 0.391*(V-128) + * R = 1.164*(Y-16) + 1.596*(U-128) + * + * If you fancy integer arithmetics (as you should), hear this: + * + * 65536*B = 76284*(Y-16) + 132252*(V-128) + * 65536*G = 76284*(Y-16) - 53281*(U-128) - 25625*(V-128) + * 65536*R = 76284*(Y-16) + 104595*(U-128) + * + * 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); \ +} + +/* + * This macro checks if usbvision is still operational. The 'usbvision' + * pointer must be valid, usbvision->dev must be valid, we are not + * removing the device and the device has not erred on us. + */ +#define USBVISION_IS_OPERATIONAL(udevice) (\ + (udevice != NULL) && \ + ((udevice)->dev != NULL) && \ + ((udevice)->last_error == 0) && \ + (!(udevice)->remove_pending)) + +#define I2C_USB_ADAP_MAX 16 + +#define USBVISION_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM | V4L2_STD_PAL_M) + +/* ----------------------------------------------------------------- */ +/* usbvision video structures */ +/* ----------------------------------------------------------------- */ +enum scan_state { + scan_state_scanning, /* Scanning for header */ + scan_state_lines /* Parsing lines */ +}; + +/* Completion states of the data parser */ +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 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 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 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 usbvision_sbuf { + char *data; + struct urb *urb; +}; + +#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 +#define USBVISION_IIC_LRACK 0x20 +#define USBVISION_IIC_LRNACK 0x30 +#define USBVISION_FRAME_FORMAT_PARAM_INTRA (1<<7) + +struct usbvision_v4l2_format_st { + int supported; + int bytes_per_pixel; + int depth; + int format; + char *desc; +}; +#define USBVISION_SUPPORTED_PALETTES ARRAY_SIZE(usbvision_v4l2_format) + +struct usbvision_frame_header { + unsigned char magic_1; /* 0 magic */ + unsigned char magic_2; /* 1 magic */ + 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 isoc_header; /* Header from stream */ + + int width; /* Width application is expecting */ + int height; /* Height */ + int index; /* Frame index */ + int frmwidth; /* Width the frame actually is */ + int frmheight; /* Height */ + + volatile int grabstate; /* State of grabbing */ + int scanstate; /* State of scanning */ + + struct list_head frame; + + int curline; /* Line of frame we're working on */ + + long scanlength; /* uncompressed, raw data length of frame */ + long bytes_read; /* amount of scanlength that has been read from data */ + 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 */ +}; + +#define CODEC_SAA7113 7113 +#define CODEC_SAA7111 7111 +#define CODEC_WEBCAM 3000 +#define BRIDGE_NT1003 1003 +#define BRIDGE_NT1004 1004 +#define BRIDGE_NT1005 1005 + +struct usbvision_device_data_st { + __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 tuner_type; + __s16 x_offset; + __s16 y_offset; +}; + +/* Declared on usbvision-cards.c */ +extern struct usbvision_device_data_st usbvision_device_data[]; +extern struct usb_device_id usbvision_table[]; + +struct usb_usbvision { + struct v4l2_device v4l2_dev; + struct v4l2_ctrl_handler hdl; + 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 *ctrl_urb; + unsigned char ctrl_urb_buffer[8]; + int ctrl_urb_busy; + struct usb_ctrlrequest ctrl_urb_setup; + + /* configuration part */ + int have_tuner; + int tuner_type; + int bridge_type; /* NT1003, NT1004, NT1005 */ + int radio; + int video_inputs; /* # of inputs */ + unsigned long radio_freq; + unsigned long tv_freq; + 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 max_packet_size */ + unsigned char iface; /* Video interface number */ + unsigned char iface_alt; /* Alt settings */ + unsigned char vin_reg2_preset; + struct mutex v4l2_lock; + int power; /* is the device powered on? */ + int user; /* user count for exclusive use */ + int initialized; /* Had we already sent init sequence? */ + 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 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*/ + int max_frame_size; /* Bytes in one video frame */ + int fbuf_size; /* Videodev buffer size */ + spinlock_t queue_lock; /* spinlock for protecting mods on inqueue and outqueue */ + 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 *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.*/ + unsigned char *scratch; + int scratch_read_ptr; + int scratch_write_ptr; + int scratch_headermarker[USBVISION_NUM_HEADERMARKER]; + int scratch_headermarker_read_ptr; + int scratch_headermarker_write_ptr; + 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 tvnorm_id; /* selected tv norm */ + unsigned char video_endp; /* 0x82 for USBVISION devices based */ + + /* 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 isoc_urb_count; /* How many URBs we received so far */ + unsigned long urb_length; /* Length of last URB */ + 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 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) +{ + return container_of(v4l2_dev, struct usb_usbvision, v4l2_dev); +} + +#define call_all(usbvision, o, f, args...) \ + v4l2_device_call_all(&usbvision->v4l2_dev, 0, o, f, ##args) + +/* --------------------------------------------------------------- */ +/* defined in usbvision-i2c.c */ +/* i2c-algo-usb declaration */ +/* --------------------------------------------------------------- */ + +/* ----------------------------------------------------------------------- */ +/* usbvision specific I2C functions */ +/* ----------------------------------------------------------------------- */ +int usbvision_i2c_register(struct usb_usbvision *usbvision); +int usbvision_i2c_unregister(struct usb_usbvision *usbvision); + +/* defined in usbvision-core.c */ +int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg); +int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg, + unsigned char value); + +int usbvision_frames_alloc(struct usb_usbvision *usbvision, int number_of_frames); +void usbvision_frames_free(struct usb_usbvision *usbvision); +int usbvision_scratch_alloc(struct usb_usbvision *usbvision); +void usbvision_scratch_free(struct usb_usbvision *usbvision); +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_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 audio_channel); +int usbvision_audio_off(struct usb_usbvision *usbvision); + +int usbvision_begin_streaming(struct usb_usbvision *usbvision); +void usbvision_empty_framequeues(struct usb_usbvision *dev); +int usbvision_stream_interrupt(struct usb_usbvision *dev); + +int usbvision_muxsel(struct usb_usbvision *usbvision, int channel); +int usbvision_set_input(struct usb_usbvision *usbvision); +int usbvision_set_output(struct usb_usbvision *usbvision, int width, int height); + +int usbvision_power_off(struct usb_usbvision *usbvision); +int usbvision_power_on(struct usb_usbvision *usbvision); + +#endif /* __LINUX_USBVISION_H */ |