Dword MT2260B0_set (
IN Demodulator* demodulator,
IN Byte chip,
IN Word bandwidth,
IN Dword frequency
) {
Dword error = Error_NO_ERROR;
UData_t status = MT_OK;
UData_t freq;
UData_t bw;
freq = frequency * 1000UL;
bw = (UData_t) bandwidth * 1000UL;
/** Change frequency */
status = MT2260_ChangeFreq (Microtune_MT2260B0_tunerHandles[chip], freq);
if (MT_NO_ERROR (status))
status |= MT2260_SetParam (Microtune_MT2260B0_tunerHandles[chip], MT2260_OUTPUT_BW, bw);
if (MT_IS_ERROR (status))
error = Error_MT_TUNE_FAIL;
User_delay (demodulator, 100);
return (error);
}
/*****************************************************************************
* Func : microtune_cofdm_mt2060_set
*
* Desc : set mt2060 tuner
*
* Parm : hFE : handle of dvb_frontend
* hFEParam : handle of dvb frontend parameters
* pllbuf : not used
*
* Retn : 0 for success, others for fail
*
*****************************************************************************/
int microtune_cofdm_mt2060_set(
void* hFE,
void* hFEParam,
unsigned char pllbuf[4])
{
struct dvb_frontend* fe = (struct dvb_frontend*) hFE;
struct dvb_frontend_parameters* fep = (struct dvb_frontend_parameters*) hFEParam;
unsigned long MTStatus = MT_OK;
MT2060_MODULE* pMT2060_Module = (MT2060_MODULE*) fe->tuner_priv;
if (pMT2060_Module == NULL){
printk("[ERROR][FETAL] microtune_cofdm_mt2060_set:: NULL Module!!\n");
goto error_status_null_module;
}
printk("microtune_cofdm_mt2060_set....\n");
MTStatus |= MT2060_ChangeFreq(
pMT2060_Module->hMT2060,
fep->frequency, /* RF input center frequency */
pMT2060_Module->f_IF1, /* desired 1st IF frequency */
pMT2060_Module->f_out, /* IF output center frequency */
pMT2060_Module->f_IFBW); /* IF output bandwidth + guard */
if(MT_NO_ERROR(MTStatus)){
pMT2060_Module->f_in = fep->frequency;
return 0;
}
else
return 1;
error_status_null_module:
return 1;
}
Dword MT2260B0_open (
IN Demodulator* demodulator,
IN Byte chip
) {
Dword error = Error_NO_ERROR;
UData_t status = MT_OK;
Microtune_MT2260B0_userDatas[chip].chip = chip;
Microtune_MT2260B0_userDatas[chip].demodulator = demodulator;
status = MT2260_Open ((unsigned int)Microtune_MT2260B0_EXT_ADDRESS, &Microtune_MT2260B0_tunerHandles[chip], &Microtune_MT2260B0_userDatas[chip]);
if (MT_NO_ERROR (status))
status |= MT2260_SetParam (Microtune_MT2260B0_tunerHandles[chip], MT2260_STEPSIZE, 62500);
if (MT_NO_ERROR (status))
status |= MT2260_SetParam (Microtune_MT2260B0_tunerHandles[chip], MT2260_RF_EXT, 1);
if (MT_NO_ERROR (status))
status |= MT2260_SetParam (Microtune_MT2260B0_tunerHandles[chip], MT2260_BB_EXT, 1);
if (MT_IS_ERROR (status))
error = Error_MT_TUNE_FAIL;
return (error);
}
/*****************************************************************************
* Func : microtune_cofdm_mt2060_init
*
* Desc : init mt2060 tuner
*
* Parm : hFE : handle of dvb_frontend
* pllbuf : not used
*
* Retn : 0 for success, others for fail
*
*****************************************************************************/
int microtune_cofdm_mt2060_init(
void* hFE,
unsigned char tuner_addr,
struct i2c_adapter* i2c_adap
)
{
struct dvb_frontend* fe = (struct dvb_frontend*) hFE;
unsigned long MTStatus = MT_OK;
MT2060_MODULE* pMT2060_Module = NULL;
if (fe->tuner_priv == NULL)
{
printk("microtune_cofdm_mt2060_init....\n");
pMT2060_Module = kmalloc(sizeof(MT2060_MODULE), GFP_KERNEL);
if (pMT2060_Module == NULL){
printk("[ERROR][FETAL] : allocate mt2060 module memory fail\n");
goto error_status_allocate_extra_module_memory;
}
fe->tuner_priv = (void*) pMT2060_Module;
pMT2060_Module->hMT2060 = NULL;
pMT2060_Module->f_in = 545000000; // Default RF Freq
pMT2060_Module->f_IF1 = 1220000000; // 1st IF SAW : 1220 MHz
pMT2060_Module->f_out = 36125000; // Ouput IF Frequency : 36.125 MHz
pMT2060_Module->f_IFBW = 6000000 + 750000; // Bandwidth : 6MHz + 750KHz Guard Band
pMT2060_Module->VGA_Gain = MT2060_VGAG_5DB;
pMT2060_Module->tuner_addr = tuner_addr;
pMT2060_Module->i2c_adap = i2c_adap;
if ((MTStatus=MT2060_Open(tuner_addr,&(pMT2060_Module->hMT2060), fe))!=MT_OK){
printk("[ERROR][FETAL] : construct mt2060 fail (%d)\n",(int)MTStatus);
goto error_status_construct_mt2060;
}
//perform tuner driver overrides here
MTStatus |= MT2060_SetParam(pMT2060_Module->hMT2060, MT2060_IF1_CENTER, pMT2060_Module->f_IF1);
if(!MT_NO_ERROR(MTStatus))
{
printk("[ERROR][FETAL]Initial:: SetParam Error!! \n");
goto error_status_set_mt2060_if1;
}
MTStatus |= MT2060_SetGainRange(pMT2060_Module->hMT2060, pMT2060_Module->VGA_Gain);
if(!MT_NO_ERROR(MTStatus))
{
printk("[ERROR][FETAL]Initial::SetGainRange Fail!! \n");
goto error_status_set_mt2060_vga;
}
MTStatus |= MT2060_ChangeFreq(
pMT2060_Module->hMT2060,
pMT2060_Module->f_in, /* RF input center frequency */
pMT2060_Module->f_IF1, /* desired 1st IF frequency */
pMT2060_Module->f_out, /* IF output center frequency */
pMT2060_Module->f_IFBW); /* IF output bandwidth + guard */
if(!MT_NO_ERROR(MTStatus))
{
printk("[ERROR][FETAL]Initial::MT2060_ChangeFreq Fail!! \n");
goto error_status_set_mt2060_frequency;
}
}
return 0;
//---
error_status_set_mt2060_frequency:
error_status_set_mt2060_vga:
error_status_set_mt2060_if1:
MT2060_Close(pMT2060_Module->hMT2060);
error_status_construct_mt2060:
kfree(pMT2060_Module);
error_status_allocate_extra_module_memory:
return 1;
}