📄 gx1101.c
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gx1101_Open_FD(TRUE);
buffer[0] = 0x72;
gx1101_Write_Registers(0x66, buffer, 1, FALSE);
Baud = 45000;
ChannelCount = 0;
s32Process= 0;
ScanTpProcessBar( (unsigned int)(s32Process));
u8Step = 49;
for(pol =0;pol<2;pol++)
{
bNeedFind[0] = 1;
if(pol ==0)
{
gx1101_Set_Polar(POL_HORIZONTAL);
lnb_params.enPolar = POL_HORIZONTAL;
ReChannel.lnb = POL_HORIZONTAL;
u8ProgressStart = 1;
}
else
{
gx1101_Set_Polar(POL_VERTICAL);
lnb_params.enPolar = POL_VERTICAL;
ReChannel.lnb = POL_VERTICAL;
u8ProgressStart = 50;
}
local_frequency = (u16)(Local_Frequency);//MHz
if(speed == 1)
{
khz_new_scan_step = (u32)KHZ_SCAN_STEP_QUICK;
KHz_tuner_freq_max = (u32)TUNER_FREQ_HIGH_LIM_KHZ_QUICK;
KHz_tuner_freq_min = (u32)TUNER_FREQ_LOW_LIM_KHZ_QUICK;
}
else
{
khz_new_scan_step = (u32)KHZ_SCAN_STEP_DETAIL;
KHz_tuner_freq_max = (u32)TUNER_FREQ_HIGH_LIM_KHZ_DETAIL;
KHz_tuner_freq_min = (u32)TUNER_FREQ_LOW_LIM_KHZ_DETAIL;
}
KHz_tuner_freq = KHz_tuner_freq_max;
scan_complete = FALSE;
while(scan_complete == FALSE)
{
ReChannel.baud = 40000;
lnb_params.KHz_tuner_freq = KHz_tuner_freq+500;
status = gx1101_Frontend(lnb_params);
#if SUPER_SEARCH
if(status != GX1101_LOCK)
{
if((KHz_tuner_freq <= 1677000L) && (bNeedFind[0] == 1))
{//当频率接近1677MHz时,用非盲扫直接单个搜来代替盲扫
gx1101_super_search(1677000L,8000,local_frequency,ReChannel);
bNeedFind[0] = 0;
}
}
#endif
if ((status == GX1101_LOCK) || (status == GX1101_NO_FEC_LOCK))
{
lnb_params.KHz_tuner_freq = (lnb_params.KHz_tuner_freq/1000)*1000;
gx1101_Get_Channel_Status(lnb_params.KHz_tuner_freq,&channel_params);
if(status == GX1101_NO_FEC_LOCK)
{
gx1101_Set_Blind_Enable(GX1101_SET_BLIND_DISABLE);
if(gx1101_Try_Find_FEC_OK(&channel_params) == FALSE)
{
KHz_tuner_freq = KHz_tuner_freq - khz_new_scan_step;
gx1101_Set_Blind_Enable(GX1101_SET_BLIND_ENABLE);
gx1101_Open_FD(TRUE);
s32Process = (KHz_tuner_freq_max - KHz_tuner_freq)*u8Step/(KHz_tuner_freq_max-KHz_tuner_freq_min);
s32Process+=u8ProgressStart;
if ( s32Process> (u8ProgressStart+u8Step) )
{
s32Process=u8ProgressStart+u8Step;
}
if ( s32Process<(s32)u8ProgressStart )
{
s32Process=u8ProgressStart;
}
ScanTpProcessBar( (unsigned int)(s32Process));
continue;
}
else
{
gx1101_Set_Blind_Enable(GX1101_SET_BLIND_ENABLE);
gx1101_Open_FD(TRUE);
}
}
ReChannel.benzhen = (unsigned int)local_frequency;
ReChannel.baud = (unsigned int)channel_params.KBd_rate;
if_frequency = (u16)((channel_params.KHz_center_freq+500)/1000);
ReChannel.Fre = (unsigned int)if_frequency;
#ifdef SUPER_SEARCH
if(check_gx1101_tpItem(ReChannel.Fre,ReChannel.baud) == FALSE)
#endif
{
result[ChannelCount] = ReChannel;//save transponder's parameter
ChannelCount++;
}
/*set next freq*/
if(channel_params.KBd_rate < 4000L)
{
u32Offset = 24000L;
}
else
{
u32Offset = 21000L;
}
KHz_tuner_freq = channel_params.KHz_center_freq - (u32)((channel_params.KBd_rate)*27)/40 - u32Offset;
}
else if (status == GX1101_NO_LOCK)
{
KHz_tuner_freq = KHz_tuner_freq - khz_new_scan_step;
}
else
{
return;
}
if ( (KHz_tuner_freq < (KHz_tuner_freq_min - 1000)) || (KHz_tuner_freq > (KHz_tuner_freq_max + 1000)) )
{
scan_complete = TRUE;
break;
}
s32Process = (KHz_tuner_freq_max - KHz_tuner_freq)*u8Step/(KHz_tuner_freq_max-KHz_tuner_freq_min);
s32Process+=u8ProgressStart;
if ( s32Process> (u8ProgressStart+u8Step) )
{
s32Process=u8ProgressStart+u8Step;
}
if ( s32Process<(s32)u8ProgressStart )
{
s32Process=u8ProgressStart;
}
ScanTpProcessBar( (unsigned int)(s32Process));
}
}
gx1101_Set_Blind_Enable(GX1101_SET_BLIND_DISABLE);
}
/*******************************************************************************************/
#else
#ifdef USER_DEFINE
DVB_TPInfo stScantpItem;
bool8 gx1101_super_search(u32 u32KHz_tuner_freq,u32 u32KBd_rate,
GX1101_LNB_PARAMS *pstLNB_params,
DVB_AutoScanParameter *pstAutoScanParameter)
{
u16 if_frequency;
u16 local_frequency;
u8 buffer[2];
GX1101_LNB_PARAMS lnb_params;
local_frequency = pstAutoScanParameter->u16LocalFrequency;
gx1101_Set_Blind_Enable(GX1101_SET_BLIND_DISABLE);
lnb_params.KHz_tuner_freq = u32KHz_tuner_freq;
lnb_params.KBd_rate = u32KBd_rate;
//pstLNB_params->KHz_tuner_freq = lnb_params.KHz_tuner_freq;
Baud = lnb_params.KBd_rate;
if(gx1101_Set_Program(&lnb_params) == TRUE)
{//如果TP能锁定，则保存TP
memset(&stScantpItem,0,sizeof(DVB_TPInfo));
if_frequency = (u16)((lnb_params.KHz_tuner_freq+500)/1000);
if(local_frequency < 7000)
{
if(local_frequency > if_frequency)
stScantpItem.u16TPFrequency = local_frequency - if_frequency;
else
stScantpItem.u16TPFrequency = local_frequency + if_frequency;
}
else
{
stScantpItem.u16TPFrequency = local_frequency + if_frequency;
}
stScantpItem.u16LocalFrequency = (u16)local_frequency;
stScantpItem.u16SymbolRate = (u16)lnb_params.KBd_rate;
if ( pstLNB_params->enPolar==POL_HORIZONTAL )
stScantpItem.b8Polar_H = TRUE;
else
stScantpItem.b8Polar_H = FALSE;
stScantpItem.b8Tone22K = pstLNB_params->enTone;
stScantpItem.u8DiSEqC= pstAutoScanParameter->u8DiSEqC;
stScantpItem.b8Control12V=pstAutoScanParameter->b8Control12V;
printf("\n**************super search*******************");
printf("\n>> Frequency = %ld",(unsigned long)stScantpItem.u16TPFrequency);
printf("\n>> SymbolRate = %ld\n",(unsigned long)stScantpItem.u16SymbolRate);
gx1101_Set_Program(&lnb_params);
if(check_gx1101_tpItem(stScantpItem.u16TPFrequency,stScantpItem.u16SymbolRate) == FALSE)
{//如果检测到TP参数相同，则不保存当前TP
if(CHECK_GOT_KEY) return FALSE;
if(ScanLocked_Callback (&stScantpItem)==FALSE)
return FALSE;
}
}
else
{
printf("super search failed\n");
}
buffer[0] = 0x72;
gx1101_Write_Registers(0x66, buffer, 1, FALSE);
buffer[0] = 0;
buffer[1] = 0;
if(gx1101_Write_Registers(GX1101_ERR1_L, buffer, 2, FALSE) != GX1101_NO_ERROR )
return FALSE;
if( gx1101_Set_Blind_Enable(GX1101_SET_BLIND_ENABLE) != GX1101_NO_ERROR)
return FALSE;
if(gx1101_Open_FD(TRUE) != GX1101_NO_ERROR)
return FALSE;
Baud = 45000;
return TRUE;
}
/*******************************************************************************************
Function : Frontend_ScanCarry()
Description : Search all of the transponder
Input : auto scan parameter
Return : SUCCESS : TRUE
FAIL : FALSE
*******************************************************************************************/
bool8 Frontend_ScanCarry(GX1101_LNB_PARAMS *pstLNB_params,
DVB_AutoScanParameter *pstAutoScanParameter
, u8 u8ProgressStart, u8 u8Step)
{
u16 if_frequency;
u16 local_frequency;
u32 KHz_tuner_freq_min;
u32 KHz_tuner_freq_max;
u32 KHz_tuner_freq, khz_new_scan_step;
GX1101_STATUS status;
bool8 scan_complete;
s32 s32Process;
GX1101_CHANNEL_PARAMS channel_params;
GX1101_LNB_PARAMS lnb_params;
u8 buffer[2];
u32 u32Offset;
bool8 bNeedFind[NEEDFIND_NUM]={1,1,1,1};
s32Process= 0;
local_frequency = pstAutoScanParameter->u16LocalFrequency;
channel_params.lnb_polar = pstLNB_params->enPolar;
if(pstAutoScanParameter->b8QuickSearch == 1)
{
khz_new_scan_step = (u32)KHZ_SCAN_STEP_QUICK;
KHz_tuner_freq_max = (u32)TUNER_FREQ_HIGH_LIM_KHZ_QUICK;
}
else
{
khz_new_scan_step = (u32)KHZ_SCAN_STEP_DETAIL;
KHz_tuner_freq_max = (u32)TUNER_FREQ_HIGH_LIM_KHZ_DETAIL;
}
KHz_tuner_freq_min = (u32)TUNER_FREQ_LOW_LIM_KHZ_DETAIL;
KHz_tuner_freq = KHz_tuner_freq_max;
scan_complete = FALSE;
while (scan_complete == FALSE)
{
#if USER_DEFINE
if(CHECK_GOT_KEY) return FALSE;
#endif
pstLNB_params->KHz_tuner_freq = KHz_tuner_freq+500;
status = gx1101_Frontend(*pstLNB_params);
#ifdef SUPER_SEARCH
if(status != GX1101_LOCK)
{
if((KHz_tuner_freq <= 1677000L) && (bNeedFind[0] == 1))
{
gx1101_super_search(1677000L,8000,pstLNB_params,pstAutoScanParameter);
bNeedFind[0] = 0;
}
}
#endif
#if USER_DEFINE
if(CHECK_GOT_KEY) return FALSE;
#endif
if ((status == GX1101_LOCK) || (status == GX1101_NO_FEC_LOCK))
{
pstLNB_params->KHz_tuner_freq = (pstLNB_params->KHz_tuner_freq/1000)*1000;
gx1101_Get_Channel_Status(pstLNB_params->KHz_tuner_freq,&channel_params);
if(status == GX1101_NO_FEC_LOCK)
{
gx1101_Set_Blind_Enable(GX1101_SET_BLIND_DISABLE);
if(gx1101_Try_Find_FEC_OK(&channel_params) == FALSE)
{
KHz_tuner_freq = KHz_tuner_freq - khz_new_scan_step;
gx1101_Set_Blind_Enable(GX1101_SET_BLIND_ENABLE);
gx1101_Open_FD(TRUE);
s32Process = (KHz_tuner_freq_max - KHz_tuner_freq)*u8Step/(KHz_tuner_freq_max-KHz_tuner_freq_min);
s32Process+=u8ProgressStart;
if ( s32Process> (u8ProgressStart+u8Step) )
{
s32Process=u8ProgressStart+u8Step;
}
if ( s32Process<(s32)u8ProgressStart )
{
s32Process=u8ProgressStart;
}
ScanTpProcessBar( (unsigned int)(s32Process));
continue;
}
else
{
gx1101_Set_Blind_Enable(GX1101_SET_BLIND_ENABLE);
gx1101_Open_FD(TRUE);
}
}
memset(&stScantpItem,0,sizeof(DVB_TPInfo));
if_frequency = (u16)((channel_params.KHz_center_freq+500)/1000);
if(local_frequency < 7000)
{
if(local_frequency > if_frequency)
stScantpItem.u16TPFrequency = local_frequency - if_frequency;
else
stScantpItem.u16TPFrequency = local_frequency + if_frequency;
}
else
{
stScantpItem.u16TPFrequency = local_frequency + if_frequency;
}
stScantpItem.u16LocalFrequency = (u16)local_frequency;
stScantpItem.u16SymbolRate = (u16)channel_params.KBd_rate;
if ( pstLNB_params->enPolar==POL_HORIZONTAL )
stScantpItem.b8Polar_H = TRUE;
else
stScantpItem.b8Polar_H = FALSE;
printf("\n>> Frequency = %ld",(unsigned long)stScantpItem.u16TPFrequency);
printf("\n>> SymbolRate = %ld\n",(unsigned long)stScantpItem.u16SymbolRate);
#if USER_DEFINE
if( gx1101_Set_Blind_Enable(GX1101_SET_BLIND_DISABLE) != GX1101_NO_ERROR)
return FALSE;
lnb_params.KHz_tuner_freq = channel_params.KHz_center_freq;
lnb_params.KBd_rate = channel_params.KBd_rate;
if(gx1101_Set_Program(&lnb_params) == FALSE)
return FALSE;
#ifdef SUPER_SEARCH
if(check_gx1101_tpItem(stScantpItem.u16TPFrequency,stScantpItem.u16SymbolRate) == FALSE)
#endif
{//如果检测到TP参数相同，则不保存当前TP
if(CHECK_GOT_KEY) return FALSE;
if(ScanLocked_Callback (&stScantpItem)==FALSE)
return FALSE;
/* lock a frequency and call the other fucntion to receive the table
and add the transponder information and service */
if(CHECK_GOT_KEY) return FALSE;
}
#endif
/*set next freq*/
if(channel_params.KBd_rate < 4000L)
{
u32Offset = 24000L;
}
else
{
u32Offset = 21000L;
}
KHz_tuner_freq = channel_params.KHz_center_freq - (u32)((channel_params.KBd_rate)*27)/40 - u32Offset;
#if USER_DEFINE
buffer[0] = 0;
buffer[1] = 0;
if(gx1101_Write_Registers(GX1101_ERR1_L, buffer, 2, FALSE) != GX1101_NO_ERROR )
return FALSE;
if( gx1101_Set_Blind_Enable(GX1101_SET_BLIND_ENABLE) != GX1101_NO_ERROR)
return FALSE;
if(gx1101_Open_FD(TRUE) != GX1101_NO_ERROR)
return FALSE;
Baud = 45000;
#endif
}
else if (status == GX1101_NO_LOCK)
{
KHz_tuner_freq = KHz_tuner_freq - khz_new_scan_step;
}
else
{
return FALSE;
}
if ( (KHz_tuner_freq < (KHz_tuner_freq_min - 1000)) || (KHz_tuner_freq > (KHz_tuner_freq_max + 1000)) )
{
scan_complete = TRUE;
break;
}
#if USER_DEFINE
s32Process = (KHz_tuner_freq_max - KHz_tuner_freq)*u8Step/(KHz_tuner_freq_max-KHz_tuner_freq_min);
s32Process+=u8ProgressStart;
if ( s32Process> (u8ProgressStart+u8Step) )
{
s32Process=u8ProgressStart+u8Step;
}
if ( s32Process<(s32)u8ProgressStart )
{
s32Process=u8ProgressStart;
}
ScanProgress_Callback( (u8)(s32Process&0xFF));
#endif
}
return TRUE;
}
/*******************************************************************************************
Function : Frontend_Autoscan()
Description : Frontend autoscan full
Input : auto scan parameter
Return : SUCCESS : TRUE
FAIL : FALSE
*******************************************************************************************/
bool8 Frontend_Autoscan(DVB_AutoScanParameter *pstAutoScanParameter)//盲扫过程中解节目的方式
{
GX1101_LNB_PARAMS stLNB_params;
u8 buffer[2];
Baud = 40000;
if( gx1101_Set_Blind_Enable(GX1101_SET_BLIND_ENABLE) != GX1101_NO_ERROR)
return FALSE;
if(gx1101_Open_FD(TRUE) != GX1101_NO_ERROR)
return FALSE;
buffer[0] = 0x72;
gx1101_Write_Registers(0x66, buffer, 1, FALSE);
gx1101_Set_Polar(POL_HORIZONTAL);
stLNB_params.enPolar = POL_HORIZONTAL;
if ( Frontend_ScanCarry(&stLNB_params, pstAutoScanParameter, 1, 49)==FALSE )
return FALSE;
gx1101_Set_Polar(POL_VERTICAL);
stLNB_params.enPolar = POL_VERTICAL;
if ( Frontend_ScanCarry(&stLNB_params, pstAutoScanParameter, 50, 49)==FALSE )
return FALSE;
if( gx1101_Set_Blind_Enable(GX1101_SET_BLIND_DISABLE) != GX1101_NO_ERROR)
return FALSE;
return TRUE;
}
#endif
#endif
/*******************************************************************************************
Function : gx1101_Frontend()
Description : Change Channel
Input : lnb_params
Return : GX1101_STATUS code
*******************************************************************************************/
GX1101_STATUS gx1101_Frontend(GX1101_LNB_PARAMS lnb_params)
{
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