hw_at2041_api.c

1、基于韩国at2041芯片开发的Linux环境的DVR代码。 2、以原来代码进行了修改。 3、主要修改网络通讯出现异常问题处理 4、硬盘覆盖录像不起作用

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void output_video_data_saturation_value(UNS16 min_luma, UNS16 max_luma, 
					UNS16 min_chroma, UNS16 max_chroma)
{
	/* min_luma   : minimum value of luminance data
	 *              default is 16
	 * max_luma   : maximum value of luminance data
	 *              defalue is 235
	 * min_chroma : minimum value of chrominance data
	 *              default is 16
	 * max_chroma : maximum value of chrominance data
	 *              defalue is 239
	 */
        rx_id = RxID(GID_DV, 0x00, PID_DV_DATA_SAT, W_FLAG);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &min_luma);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &max_luma);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &min_chroma);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &max_chroma);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void zoom_in(UNS16 horizontal_direction, UNS16 vertical_direction)
{
	/* horizontal_direction : '0' original, '1' horizontal zoom_in(x2), defaule is '0'
	 * vertical_direction : '0' original, '1' vertical zoom_in(x2), defaule is '0'
	 */
        rx_id = RxID(GID_DV, 0x00, PID_DV_ZOOM_IN, W_FLAG);
	rx_data = (vertical_direction << 1) | horizontal_direction;
        write_parm(rx_id, rx_data);
}

void partial_display_zoom_offset(UNS16 hoffset, UNS16 voffset)
{
	/* hoffset : horizontal offset, 16-pel unit, default is 0
	 * voffset : vertical offset, 2-line unit, default is 0
	 */
        rx_id = RxID(GID_DV, 0x00, PID_DV_ZOOM_OFF, W_FLAG);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &hoffset);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &voffset);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void deinterlace_mode(UNS16 mode)
{
	/* mode : '0' disable, '1' enable, default is '0' */
        rx_id = RxID(GID_DV, 0x00, PID_DV_DINT_EN, W_FLAG);
        write_parm(rx_id, mode);
}

void field_repeat_output_mode(UNS16 mode)
{
	/* mode : '0' disable, '1' enable, default is '0' */
        rx_id = RxID(GID_DV, 0x00, PID_DV_FLD_RPT, W_FLAG);
        write_parm(rx_id, mode);
}

void vbi_encod_mode(UNS16 mode)
{
	/* mode : '0' off, '1' AT204xE VBI mode, default is '0' */
        rx_id = RxID(GID_DV, 0x00, PID_DV_VBI_MODE, W_FLAG);
        write_parm(rx_id, mode);
}

void colorbar_mode(UNS16 mode)
{
	/* mode : '0' off, '1' on, default is '0' */
        rx_id = RxID(GID_DV, 0x00, PID_DV_COLOR_BAR, W_FLAG);
        write_parm(rx_id, mode);
}

void borderline_mode(UNS16 mode)
{
	/* mode : '0' off, '1' on, default is '0' */
        rx_id = RxID(GID_DV, 0x00, PID_DV_BL_EN, W_FLAG);
        write_parm(rx_id, mode);
}

void borderline_color(UNS16 Y, UNS16 Cb, UNS16 Cr)
{
	/* Y : default is 128
	 * Cb : default is 128
	 * Cr : default is 128
	 */
        rx_id = RxID(GID_DV, 0x00, PID_DV_BL_COLOR, W_FLAG);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &Y);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &Cb);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &Cr);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void background_color_display_mode(UNS16 mode)
{
	/* mode : '0' off, '1' on, default is '0' */
        rx_id = RxID(GID_DV, 0x00, PID_DV_BC_EN, W_FLAG);
        write_parm(rx_id, mode);
}

void background_color(UNS16 Y, UNS16 Cb, UNS16 Cr)
{
	/* Y : this value * 4, default is 32
	 * Cb : this value * 8, default is 16
	 * Cr : this value * 8, default is 16
	 */
        rx_id = RxID(GID_DV, 0x00, PID_DV_BC_COLOR, W_FLAG);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &Y);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &Cb);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &Cr);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void foreground_video_window(UNS16 h_start_position, UNS16 v_start_position, 
	UNS16 h_end_position, UNS16 v_end_position)
{
	/* h_start_position : horizontal start position (pixel unit), default is 20
	 * v_start_position : vertical start position (2-line unit), default is 10
	 * h_end_position   : horizontal end position ( pixel unit), defualt is 700
	 * v_end_position   : vertical end position (2-line unit), default is 230
	 */
        rx_id = RxID(GID_DV, 0x00, PID_DV_FG_WINDOW, W_FLAG);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &h_start_position);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &v_start_position);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &h_end_position);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &v_end_position);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void background_image_download_start(void)
{
        rx_id = RxID(GID_DV, 0x00, PID_DV_BI_DN_STT, W_FLAG);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void background_image_download_finish(void)
{
        rx_id = RxID(GID_DV, 0x00, PID_DV_BI_DN_FIN, W_FLAG);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void background_image_cpature(void)
{
        rx_id = RxID(GID_DV, 0x00, PID_DV_BI_CAP, W_FLAG);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void background_image_display_mode(UNS16 mode)
{
	/* mode : 
	 *        '0' background image display mode
	 *        '1' input video monitor mode
	 *        default is '0'
	 */
        rx_id = RxID(GID_DV, 0x00, PID_DV_BI_MODE, W_FLAG);
        write_parm(rx_id, mode);
}

void monitor_channel_id(UNS16 ch_id)
{
	/* this is valid only if the background image display mode is '2' */
        rx_id = RxID(GID_DV, 0x00, PID_DV_BI_MCID, W_FLAG);
        write_parm(rx_id, ch_id);
}

// 2005.10.21 pentamicro

void background_color_mode1(UNS16 Y, UNS16 Cb, UNS16 Cr)
{
	/* Y : this value 
	 * Cb : this value 
	 * Cr : this value
	 */
        rx_id = RxID(GID_DV, 0x00, PID_DV_BC_COLOR_MODE1, W_FLAG);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &Y);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &Cb);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &Cr);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void apply_next_param(UNS16 ch_id)
{
	/* The 'apply next param' parameter should be set after 
	*  'next display offset' parameter [GID=9, PID=0x12] and 
	*  'next display mode' parameter [GID=9, PID=0x14] 
	*  are set 
	*/
        rx_id = RxID(GID_DV, 0x00, PID_DV_APLY_PRM, W_FLAG);
        write_parm(rx_id, ch_id);
}

void step_mode(UNS16 mode)
{
	/* mode : '0' FWD, '1' BWD */
        rx_id = RxID(GID_DV, 0x00, PID_DV_STEP, W_FLAG);
        write_parm(rx_id, mode);
}

/* Decoder video channel parameters */
void decode_standard(UNS16 ch_id, UNS16 standard)
{
	/* ch_id    : channel ID
	 * standard : '0' JPEG, '1' MPEG1, '2' MPEG2, '3' H.263, '4' MPEG4
	 *            default is '4'
	 */
        rx_id = RxID(GID_DVC, ch_id, PID_DVC_STD, W_FLAG);
        write_parm(rx_id, standard);
}

void set_vid_stream_id(UNS16 ch_id, UNS16 ID)
{
	/* ch_id : channel ID
	 * ID    : default is 0
	 *        - Stream ID : If the input stream format is PES or PS then 0 ~ 15
	 *        - PID       : If the input stream format is not TS then 0x0010 ~ 0x1FFE
	 */
        rx_id = RxID(GID_DVC, ch_id, PID_DVC_STR_ID, W_FLAG);
        write_parm(rx_id, ID);
}

void freeze(UNS16 ch_id, UNS16 mode)
{
	/* ch_id : channel ID
	 * mode  : '0' off, '1' on, default is '0'
	 */
        rx_id = RxID(GID_DVC, ch_id, PID_DVC_FREEZE, W_FLAG);
        write_parm(rx_id, mode);
}

void display(UNS16 ch_id, UNS16 mode)
{
	/* ch_id : channel ID
	 * mode  : '0' off, '1' on, default is '0'
	 */
        rx_id = RxID(GID_DVC, ch_id, PID_DVC_DISP, W_FLAG);
        write_parm(rx_id, mode);
}

void display_priority(UNS16 ch_id, UNS16 mode)
{
	rx_id= RxID(GID_DVC, ch_id, PID_DVC_DISP_PRIORITY, W_FLAG);
	write_parm(rx_id, mode);
}

void scale_down_mode(UNS16 ch_id, UNS16 hscale, UNS16 vscale)
{
	/* ch_id : channel ID
	 * hscale : horizontal scale-down mode, default is '0'
	 *          '0' 1, '1' 1/2, '2' 1/3, '3' 1/4, '4' 2/3
	 * vscale : vertical scale-down mode, default is '0'
	 *          '0' 1, '1' 1/2, '2' 1/3, '3' 1/4, '4' 2/3
	 */
	rx_id = RxID(GID_DVC, ch_id, PID_DVC_SCL_DN, W_FLAG);
	ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
      ioctl(fd_at2041, WRITE_Rx_FIFO, &hscale);
      ioctl(fd_at2041, WRITE_Rx_FIFO, &vscale);

      ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void display_offset(UNS16 ch_id, UNS16 hoffset, UNS16 voffset)
{
	/* ch_id : channel ID
	 * hoffset : horizontal offset(16-pel unit), default is '0'
	 * voffset : vertical offset(16-line unit), default is '0'
	 */
        rx_id = RxID(GID_DVC, ch_id, PID_DVC_MB_OFF, W_FLAG);
	  ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &hoffset);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &voffset);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void next_display_offset(UNS16 ch_id, UNS16 hoffset, UNS16 voffset)
{
	/* ch_id : channel ID
	 * hoffset : horizontal offset(16-pel unit), default is '0'
	 * voffset : vertical offset(16-line unit), default is '0'
	 */
        rx_id = RxID(GID_DVC, ch_id, PID_DVC_NXT_MB_OFF, W_FLAG);
	  ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &hoffset);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &voffset);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void display_mode(UNS16 ch_id, UNS16 hscale, UNS16 vscale)
{
	/* ch_id : channel ID
	 * hscale : horizontal scale-down mode, default is '0'
	 *          '0' org, '1' full_D1, '2' 2/3, '3' 1/2, '4' 1/3, '5' 1/4
	 * vscale : vertical scale-down mode, default is '0'
	 *          '0' org, '1' full_D1, '2' 2/3, '3' 1/2, '4' 1/3, '5' 1/4
	 */
	rx_id = RxID(GID_DVC, ch_id, PID_DVC_DISP_MODE, W_FLAG);
	ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
      ioctl(fd_at2041, WRITE_Rx_FIFO, &hscale);
      ioctl(fd_at2041, WRITE_Rx_FIFO, &vscale);

      ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void next_display_mode(UNS16 ch_id, UNS16 hscale, UNS16 vscale)
{
	/* ch_id : channel ID
	 * hscale : horizontal scale-down mode, default is '0'
	 *          '0' org, '1' full_D1, '2' 2/3, '3' 1/2, '4' 1/3, '5' 1/4
	 * vscale : vertical scale-down mode, default is '0'
	 *          '0' org, '1' full_D1, '2' 2/3, '3' 1/2, '4' 1/3, '5' 1/4
	 */
	rx_id = RxID(GID_DVC, ch_id, PID_DVC_NXT_DISP_MODE, W_FLAG);
	ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
      ioctl(fd_at2041, WRITE_Rx_FIFO, &hscale);
      ioctl(fd_at2041, WRITE_Rx_FIFO, &vscale);

      ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void eq_mode(UNS16 ch_id, UNS16 mode)
{
	/* ch_id : channel ID
	 * mode : '0' off, '1' on, default is '0'
	 */
        rx_id = RxID(GID_DVC, ch_id, PID_DVC_EQ_ON, W_FLAG);
        write_parm(rx_id, mode);
}

void set_eq_parameter(UNS16 ch_id, UNS16 eq_strength, UNS16 iir_strength)
{
	/* This is valid only if EQ is on
	 * ch_id : channel ID
	 * eq_strength  : '0'(weak) ~ '3'(strong), default is '3'
	 * iir_strength : '0'(weak) ~ '3'(strong), default is '0'
	 */
        rx_id = RxID(GID_DVC, ch_id, PID_DVC_EQ_PARM, W_FLAG);
		ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &eq_strength);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &iir_strength);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void enhancement_mode(UNS16 ch_id, UNS16 mode)
{
	/* ch_id : channel ID
	 * mode : '0' off, '1' on, default is '0'
	 */
        rx_id = RxID(GID_DVC, ch_id, PID_DVC_ENH_ON, W_FLAG);
        write_parm(rx_id, mode);
}

void brightness(UNS16 ch_id, UNS16 value)
{
	/* ch_id : channel ID
	 * value : DC offset value = (this value - 128)
	 *         default is 128
	 */
        rx_id = RxID(GID_DVC, ch_id, PID_DVC_BRIGHT, W_FLAG);
        write_parm(rx_id, value);
}

/* Decoder audio parameters */
void audio_decode_standard(UNS16 standard)
{
	/* standard : '0' PCM, '1' ADPCM, '2' MPEG-1 layer 2, '3' MPEG-1 layer 3, '9' ADPCM-STEREO
	 *            default is '1'
	 */
        rx_id = RxID(GID_DA, 0x00, PID_DA_STD, W_FLAG);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &rx_id);
        ioctl(fd_at2041, WRITE_Rx_FIFO, &standard);

        ioctl(fd_at2041, END_OF_WRITE_Rx_FIFO);
}

void set_aud_stream_id(UNS16 ID)
{
	/* ID    : default is 0
	 *        - Stream ID : If the input stream format is PES or PS then 0 ~ 15
	 *        - PID       : If the input stream format is not TS then 0x0010 ~ 0x1FFE
	 */
        rx_id = RxID(GID_DA, 0x00, PID_DA_STR_ID, W_FLAG);
        write_parm(rx_id, ID);
}

void audio_output_format(UNS16 format, UNS16 bits, UNS16 delay_mode)
{
	/* format : audio output format
	 *          '0' I2S mode, '1' left justified mode, '2' u-Law PCM mode, '3' a-Law PCM mode, '4' linear PCM mode,
	 *           default is '2'