TDA998x Device Control Functions

Modules
	I2C Interface/Control
	TDA998x Audio
	TDA998x EDID
	TDA998x Hotplug
	TDA998x Video Input
	TDA998x Video Output

Functions
static uint8_t	set_pix_clk (enum tda998x_vid_fmt fmt, enum tda998x_vert_freq freq, uint8_t *pclk)
static const struct vidfmt_desc *	get_vidfmt_desc (enum tda998x_vid_fmt vid_fmt)
static int	set_de_vs (struct tda998x_dev *dev, enum tda998x_vid_fmt vout_fmt, enum tda998x_format_3d format_3d)
static int	set_pix_repeat (struct tda998x_dev *dev, enum tda998x_vid_fmt vout_fmt, uint8_t pix_rpt, enum tda998x_format_3d format_3d)
	Set Pixel Repetition. More...
static int	set_sampling (struct tda998x_dev *dev)
static uint8_t	chksum (uint8_t *data, int len)
static int	set_video_config (struct tda998x_dev *dev, struct tda998x_vid_frm *vid)
	Set Video Configuration. More...
static int	tda998x_set_tmds_output (struct tda998x_dev *dev, enum buffer_out_srl_force tmds)
	Set TMDS Output. More...
int	hot_plug_restore (struct tda998x_dev *dev)
int	tda998x_handle_interrupt (struct tda998x_dev *dev)

Variables
int16_t	offset [MTX_OFFSET_LEN]
enum tda998x_hdmi_reg	reg
uint8_t	mask
uint8_t	val
uint16_t	npix
uint16_t	nline
uint16_t	line_start
uint16_t	pix_start
uint16_t	line_end
uint16_t	pix_end
uint16_t	hs_start
uint16_t	hs_end
uint16_t	act_vid_start
uint16_t	act_vid_end
uint16_t	de_start
uint16_t	de_end
uint16_t	vs2
uint8_t	pix_rpt
uint8_t	v_toggle
uint8_t	h_toggle
uint16_t	hfp
uint16_t	vfp
uint16_t	href
uint16_t	vref
uint8_t	pll_sc
enum vidformat_fmt	reg_fmt
enum tda998x_vid_fmt	vid_fmt
enum vidformat_fmt	reg_fmt

Detailed Description

Function Documentation

set_pix_repeat()

static int set_pix_repeat ( struct tda998x_dev *  dev, enum tda998x_vid_fmt  vout_fmt, uint8_t  pix_rpt, enum tda998x_format_3d  format_3d  )

static

#include <projects/lib/tda998x.c>

Set Pixel Repetition.

Parameters

dev	TDA998x device structure pointer

Returns

0 on success, non-zero error status otherwise

{
    int ret = 0;

    ret = write_reg_mask(dev,
            PLL_SERIAL_2,
            PLL_SERIAL_2_SRL_PR_MASK,
            pix_rpt << 4);
    if (ret < 0)
        return ret;

    /* Set pixel repetition count for Repetitor module */
    ret = write_reg(dev, RPT_CNTRL, pix_rpt);
    if (ret < 0)
        return ret;

    ret = write_reg_mask(dev,
            PLL_SERIAL_1,
            PLL_SERIAL_1_SRL_MAN_IZ,
            0);
    if (ret < 0)
        return ret;

    ret = write_reg_mask(dev,
            PLL_SERIAL_3,
            PLL_SERIAL_3_SRL_DE,
            0);
    if (ret < 0)
        return ret;

    ret = write_reg(dev, SERIALIZER, 0);
    if (ret < 0)
        return ret;

    return 0;
}

set_video_config()

static int set_video_config ( struct tda998x_dev *  dev, struct tda998x_vid_frm *  vid  )

static

#include <projects/lib/tda998x.c>

Set Video Configuration.

Parameters

dev	TDA998x device structure pointer
vid	Video frame structure pointer

Returns

0 on success, non-zero error status otherwise

{
    int ret;

    ret = write_reg(dev, VIDFORMAT, 0x1F);
    if (ret < 0)
        return ret;

    ret = write_reg(dev, VIDFORMAT, 0x00);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, NPIX_MSB, vid->npix);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, NLINE_MSB, vid->nline);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, VS_LINE_STRT_1_MSB, vid->line_start);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, VS_PIX_STRT_1_MSB, vid->pix_start);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, VS_LINE_END_1_MSB, vid->line_end);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, VS_PIX_END_1_MSB, vid->pix_end);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, HS_PIX_START_MSB, vid->hs_start);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, HS_PIX_STOP_MSB, vid->hs_end);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, VWIN_START_1_MSB, vid->act_vid_start);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, VWIN_END_1_MSB, vid->act_vid_end);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, DE_START_MSB, vid->de_start);
    if (ret < 0)
        return ret;

    ret = write_reg16(dev, DE_STOP_MSB, vid->de_end);
    if (ret < 0)
        return ret;

    return 0;
}

tda998x_set_tmds_output()

static int tda998x_set_tmds_output ( struct tda998x_dev *  dev, enum buffer_out_srl_force  tmds  )

static

#include <projects/lib/tda998x.c>

Set TMDS Output.

Parameters

dev	TDA998x device structure pointer
tmds	TMDS serializer output selection

Returns

0 on success, non-zero error status otherwise

{
    int ret;



    /* Set the TMDS output mode */
    ret = write_reg_mask(dev,
            BUFFER_OUT,
            BUFFER_OUT_SRL_FORCE_MASK,
            (uint8_t) tmds);
    if (ret < 0)
        return ret;

    return 0;
}

Variable Documentation

pll_sc

uint8_t pll_sc

PLL scaler