kernel_samsung_msm8974/drivers/media/isdbt/fc8150_spi/fc8150_tun.c

/*****************************************************************************
 Copyright(c) 2012 FCI Inc. All Rights Reserved

 File name : fc8150_tun.c (BGA & QFN)

 Description : fc8150 tuner driver

 History :
 ----------------------------------------------------------------------
 2012/01/20 	initial 0.1 version
 2012/01/25 	initial 0.3 version
 2012/01/27 	initial 0.5 version
 2012/01/31 	initial 1.0 version
 2012/01/31 	initial 1.1 version
 2012/02/06		initial 1.2 version
 2012/02/09		initial 1.3 Version
 2012/02/15		initial 1.4 Version
 2012/02/15		initial 2.0 Version
 2012/02/24		initial 2.01 Version
 2012/03/30		initial 3.0 Version
 2012/06/07	pre SLR Version
 2012/06/11     pre SLR Version
 2012/06/15
 2012/06/17	SLR 0.3 version
 2012/06/19	SLR 0.4 version
 2012/06/20
 2012/07/04
 2012/07/09
 2012/07/10
 2012/07/15
 2012/07/16
 2012/07/16
 2012/07/30
 2012/08/02
 2012/08/10
 2012/08/13
*******************************************************************************/

#include "fci_types.h"
#include "fci_oal.h"
#include "fci_tun.h"
#include "fc8150_regs.h"
#include "fci_hal.h"

#define  FC8150_FREQ_XTAL  BBM_XTAL_FREQ

static int fc8150_write(HANDLE hDevice, u8 addr, u8 data)
{
	int res;
	u8 tmp;

	tmp = data;
	res = tuner_i2c_write(hDevice, addr, 1, &tmp, 1);

	return res;
}

static int fc8150_read(HANDLE hDevice, u8 addr, u8 *data)
{
	int res;

	res = tuner_i2c_read(hDevice, addr, 1, data, 1);

	return res;
}

static int fc8150_bb_read(HANDLE hDevice, u16 addr, u8 *data)
{
	int res;

	res = bbm_read(hDevice, addr, data);

	return res;
}

#if 0
static int fc8150_bb_write(HANDLE hDevice, u16 addr, u8 data)
{
	int res;

	res = bbm_write(hDevice, addr, data);

	return res;
}
#endif

static int fc8150_set_filter(HANDLE hDevice)
{
	int i;
	u8 cal_mon = 0;

#if (FC8150_FREQ_XTAL == 16000)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x20);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 16384)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x21);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 18000)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x24);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 19200)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x26);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 24000)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x30);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 24576)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x31);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 26000)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x34);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 27000)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x36);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 27120)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x36);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 32000)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x40);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 37400)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x4B);
	fc8150_write(hDevice, 0x3B, 0x00);
#elif (FC8150_FREQ_XTAL == 38400)
	fc8150_write(hDevice, 0x3B, 0x01);
	fc8150_write(hDevice, 0x3D, 0x4D);
	fc8150_write(hDevice, 0x3B, 0x00);
#else
	return BBM_NOK;
#endif

	for (i = 0; i < 10; i++) {
		msWait(5);
		fc8150_read(hDevice, 0x33, &cal_mon);
		if ((cal_mon & 0xC0) == 0xC0)
			break;
		fc8150_write(hDevice, 0x32, 0x01);
		fc8150_write(hDevice, 0x32, 0x09);
	}

	fc8150_write(hDevice, 0x32, 0x01);

	return BBM_OK;
}

int fc8150_tuner_init(HANDLE hDevice, u32 band)
{
	int i;
	int n_RFAGC_PD1_AVG, n_RFAGC_PD2_AVG;
	u8  RFPD_REF;
	u8  RFAGC_PD2[6], RFAGC_PD2_AVG, RFAGC_PD2_MAX, RFAGC_PD2_MIN;
	u8  RFAGC_PD1[6], RFAGC_PD1_AVG, RFAGC_PD1_MAX, RFAGC_PD1_MIN;

	PRINTF(hDevice, "fc8150_tuner_init\n");

	fc8150_write(hDevice, 0x00, 0x00);
	fc8150_write(hDevice, 0x02, 0x81);

	fc8150_write(hDevice, 0x15, 0x02);
	fc8150_write(hDevice, 0x20, 0x33);
	fc8150_write(hDevice, 0x28, 0x62);
	fc8150_write(hDevice, 0x35, 0xAA);
	fc8150_write(hDevice, 0x38, 0x28);

	fc8150_write(hDevice, 0x3B, 0x01);

	fc8150_set_filter(hDevice);

	fc8150_write(hDevice, 0x3B, 0x00);

	fc8150_write(hDevice, 0x56, 0x01);
	fc8150_write(hDevice, 0x57, 0x86);
	fc8150_write(hDevice, 0x58, 0xA7);
	fc8150_write(hDevice, 0x59, 0x4D);

	fc8150_write(hDevice, 0x80, 0x17);
	fc8150_write(hDevice, 0xAB, 0x48);

	fc8150_write(hDevice, 0xA0, 0xC0);
	fc8150_write(hDevice, 0xD0, 0x00);

	RFAGC_PD1[0]	=	0;
	RFAGC_PD1[1]	=	0;
	RFAGC_PD1[2]	=	0;
	RFAGC_PD1[3]	=	0;
	RFAGC_PD1[4]	=	0;
	RFAGC_PD1[5]	=	0;
	RFAGC_PD1_MAX	=	0;
	RFAGC_PD1_MIN	=	255;

	for (i = 0; i < 6 ; i++) {
		fc8150_read(hDevice, 0xD8 , &RFAGC_PD1[i]);

		if (RFAGC_PD1[i] >= RFAGC_PD1_MAX)
			RFAGC_PD1_MAX = RFAGC_PD1[i];
		if (RFAGC_PD1[i] <= RFAGC_PD1_MIN)
			RFAGC_PD1_MIN = RFAGC_PD1[i];
	}
	n_RFAGC_PD1_AVG	= (RFAGC_PD1[0] + RFAGC_PD1[1] + RFAGC_PD1[2]
		+ RFAGC_PD1[3] + RFAGC_PD1[4] + RFAGC_PD1[5]
		- RFAGC_PD1_MAX - RFAGC_PD1_MIN) / 4;
	RFAGC_PD1_AVG =	(unsigned char) n_RFAGC_PD1_AVG;

	fc8150_write(hDevice, 0x7F , RFAGC_PD1_AVG);

	RFAGC_PD2[0]	=	0;
	RFAGC_PD2[1]	=	0;
	RFAGC_PD2[2]	=	0;
	RFAGC_PD2[3]	=	0;
	RFAGC_PD2[4]	=	0;
	RFAGC_PD2[5]	=	0;

	RFAGC_PD2_MAX	=	0;
	RFAGC_PD2_MIN	=	255;

	for (i = 0; i < 6; i++) {
		fc8150_read(hDevice, 0xD6, &RFAGC_PD2[i]);

		if (RFAGC_PD2[i] >= RFAGC_PD2_MAX)
			RFAGC_PD2_MAX = RFAGC_PD2[i];
		if (RFAGC_PD2[i] <= RFAGC_PD2_MIN)
			RFAGC_PD2_MIN = RFAGC_PD2[i];
	}
	n_RFAGC_PD2_AVG	=	(RFAGC_PD2[0] + RFAGC_PD2[1] + RFAGC_PD2[2]
		+ RFAGC_PD2[3] + RFAGC_PD2[4] + RFAGC_PD2[5]
		- RFAGC_PD2_MAX - RFAGC_PD2_MIN) / 4;
	RFAGC_PD2_AVG =	(unsigned char) n_RFAGC_PD2_AVG;

	fc8150_write(hDevice, 0x7E , RFAGC_PD2_AVG);

	fc8150_read(hDevice, 0xD6, &RFPD_REF);

	if (0x80 <= RFPD_REF)
		fc8150_write(hDevice, 0x7B, 0x8F);
	else if (RFPD_REF < 0x80)
		fc8150_write(hDevice, 0x7B, 0x88);

	fc8150_write(hDevice, 0x79, 0x32);
	fc8150_write(hDevice, 0x7A, 0x2C);
	fc8150_write(hDevice, 0x7C, 0x12);
	fc8150_write(hDevice, 0x7D, 0x0C);
	fc8150_write(hDevice, 0x81, 0x0A);
	fc8150_write(hDevice, 0x84, 0x00);
	fc8150_write(hDevice, 0x92, 0x00);
	fc8150_write(hDevice, 0x93, 0x0C);

	fc8150_write(hDevice, 0xA5, 0x69);
	fc8150_write(hDevice, 0xA6, 0x25);

	fc8150_write(hDevice, 0x02, 0x81);

	return BBM_OK;
}


int fc8150_set_freq(HANDLE hDevice, enum band_type band, u32 rf_kHz)
{
	unsigned long f_diff, f_diff_shifted, n_val, k_val;
	unsigned long f_vco, f_comp;
	unsigned char r_val, data_0x56;
	unsigned char pre_shift_bits = 4;

	f_vco = (rf_kHz) << 2;
	if (f_vco < FC8150_FREQ_XTAL*40)
		r_val = 2;
	else
		r_val = 1;

	f_comp = FC8150_FREQ_XTAL / r_val;

	n_val =	f_vco / f_comp;
	f_diff = f_vco - f_comp * n_val;

	f_diff_shifted = f_diff << (20 - pre_shift_bits);

	k_val = (f_diff_shifted) / (f_comp >> pre_shift_bits);
	k_val = (k_val | 1);

	if (470000 < rf_kHz && rf_kHz <= 473143) {
		fc8150_write(hDevice, 0x1E, 0x04);
		fc8150_write(hDevice, 0x1F, 0x36);
		fc8150_write(hDevice, 0x14, 0x84);
	} else if (473143 < rf_kHz && rf_kHz <= 485143) {
		fc8150_write(hDevice, 0x1E, 0x03);
		fc8150_write(hDevice, 0x1F, 0x3E);
		fc8150_write(hDevice, 0x14, 0x84);
	} else if (485143 < rf_kHz && rf_kHz <= 551143) {
		fc8150_write(hDevice, 0x1E, 0x04);
		fc8150_write(hDevice, 0x1F, 0x36);
		fc8150_write(hDevice, 0x14, 0x84);
	} else if (551143 < rf_kHz && rf_kHz <= 557143) {
		fc8150_write(hDevice, 0x1E, 0x04);
		fc8150_write(hDevice, 0x1F, 0x3E);
		fc8150_write(hDevice, 0x14, 0x84);
	} else if (557143 < rf_kHz && rf_kHz <= 563143) {
		fc8150_write(hDevice, 0x1E, 0x03);
		fc8150_write(hDevice, 0x1F, 0x3E);
		fc8150_write(hDevice, 0x14, 0x84);
	} else if (563143 < rf_kHz && rf_kHz <= 593143) {
		fc8150_write(hDevice, 0x1E, 0x04);
		fc8150_write(hDevice, 0x1F, 0x3E);
		fc8150_write(hDevice, 0x14, 0x84);
	} else if (593143 < rf_kHz && rf_kHz <= 659143) {
		fc8150_write(hDevice, 0x1E, 0x02);
		fc8150_write(hDevice, 0x1F, 0x36);
		fc8150_write(hDevice, 0x14, 0x84);
	} else if (659143 < rf_kHz && rf_kHz <= 767143) {
		fc8150_write(hDevice, 0x1E, 0x01);
		fc8150_write(hDevice, 0x1F, 0x36);
		fc8150_write(hDevice, 0x14, 0x84);
	} else if (767143 < rf_kHz) {
		fc8150_write(hDevice, 0x1E, 0x00);
		fc8150_write(hDevice, 0x1F, 0x36);
		fc8150_write(hDevice, 0x14, 0x84);
	} else {
		fc8150_write(hDevice, 0x1E, 0x05);
		fc8150_write(hDevice, 0x1F, 0x36);
		fc8150_write(hDevice, 0x14, 0x84);
	}

	data_0x56 = ((r_val == 1) ? 0 : 0x10) + (unsigned char)(k_val>>16);
	fc8150_write(hDevice, 0x56, data_0x56);
	fc8150_write(hDevice, 0x57, (unsigned char)((k_val>>8)&0xFF));
	fc8150_write(hDevice, 0x58, (unsigned char)(((k_val)&0xFF)));
	fc8150_write(hDevice, 0x59, (unsigned char) n_val);

	if (rf_kHz < 525000)
		fc8150_write(hDevice, 0x55, 0x0E);
	else if (525000 <= rf_kHz && rf_kHz < 600000)
		fc8150_write(hDevice, 0x55, 0x0C);
	else if (600000 <= rf_kHz && rf_kHz < 700000)
		fc8150_write(hDevice, 0x55, 0x08);
	else if (700000 < rf_kHz)
		fc8150_write(hDevice, 0x55, 0x06);

	if (rf_kHz <= 491143) {
		fc8150_write(hDevice, 0x79, 0x2a);
		fc8150_write(hDevice, 0x7A, 0x26);
	} else if (491143 < rf_kHz && rf_kHz <= 659143) {
		fc8150_write(hDevice, 0x79, 0x2A);
		fc8150_write(hDevice, 0x7A, 0x26);
	} else if (659143 < rf_kHz && rf_kHz <= 773143) {
		fc8150_write(hDevice, 0x79, 0x2C);
		fc8150_write(hDevice, 0x7A, 0x28);
	} else if (773143 < rf_kHz) {
		fc8150_write(hDevice, 0x79, 0x2F);
		fc8150_write(hDevice, 0x7A, 0x2B);
	}

	if (rf_kHz <= 707143) {
		fc8150_write(hDevice, 0x54, 0x01);
		fc8150_write(hDevice, 0x53, 0x9F);
	} else if (707143 < rf_kHz) {
		fc8150_write(hDevice, 0x54, 0x04);
		fc8150_write(hDevice, 0x53, 0x9F);
	}

	return BBM_OK;
}

int fc8150_get_rssi(HANDLE hDevice, int *rssi)
{
	int res = BBM_OK;
	u8  LNA, RFVGA, CSF, PREAMP_PGA, CRNTMODE1, CRNTMODE0 = 0x00;
	int K = -105;
	int PGA = 0;
	int A2 = 5;
	int A3 = 2;

	res = fc8150_read(hDevice, 0xA3, &LNA);
	res = fc8150_read(hDevice, 0xA4, &RFVGA);
	res = fc8150_read(hDevice, 0xA8, &CSF);
	res = fc8150_bb_read(hDevice, 0x106E, &PREAMP_PGA);

	if (res != BBM_OK)
		return res;

	if (127 < PREAMP_PGA)
		PGA = -1 * ((256 - PREAMP_PGA) + 1);
	else if (PREAMP_PGA <= 127)
		PGA = PREAMP_PGA;

	CRNTMODE1 = (LNA >> 6) & 0x01;
	CRNTMODE0 = (LNA >> 5) & 0x01;

	/* *rssi = (LNA & 0x07) * 6 + (RFVGA & 0x1F)
	+ ((CSF & 0x03)+((CSF & 0x70) >> 4) ) * 6 - PGA * 0.25f
	+ A2 * CRNTMODE1 + A3 * CRNTMODE0 + K ; */
	*rssi = (LNA & 0x07) * 6 + (RFVGA & 0x1F)
		+ ((CSF & 0x03) + ((CSF & 0x70) >> 4)) * 6 - PGA / 4
		+ A2 * CRNTMODE1 + A3 * CRNTMODE0 + K;

	return BBM_OK;
}

int fc8150_tuner_deinit(HANDLE hDevice)
{
	return BBM_OK;
}