/*
 * Copyright (C) 2015 MediaTek Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 */

#include <linux/kernel.h>
#include <asm/uaccess.h>
#include <linux/slab.h>
#include <mtk_wcn_cmb_stub.h>

#include "fm_main.h"
#include "fm_config.h"
#include "fm_err.h"
/* #include "fm_cust_cfg.h" */
#include "osal_typedef.h"
#include "wmt_exp.h"
/* fm main data structure */
static struct fm *g_fm_struct;
/* we must get low level interface first, when add a new chip, the main effort is this interface */
static struct fm_lowlevel_ops fm_low_ops;
#ifdef MT6620_FM
static struct fm_lowlevel_ops MT6620fm_low_ops;
#endif
#ifdef MT6628_FM
static struct fm_lowlevel_ops MT6628fm_low_ops;
#endif
#ifdef MT6627_FM
static struct fm_lowlevel_ops MT6627fm_low_ops;
#endif
#ifdef MT6580_FM
static struct fm_lowlevel_ops MT6580fm_low_ops;
#endif
#ifdef MT6630_FM
static struct fm_lowlevel_ops MT6630fm_low_ops;
#endif
/* MTK FM Radio private advanced features */
#if 0				/* (!defined(MT6620_FM)&&!defined(MT6628_FM)) */
static struct fm_priv priv_adv;
#endif
/* mutex for char device ops */
static struct fm_lock *fm_ops_lock;
/* mutex for RDS parsing and read result */
static struct fm_lock *fm_read_lock;
/* for get rds block counter */
static struct fm_lock *fm_rds_cnt;
/* mutex for fm timer, RDS reset */
static struct fm_lock *fm_timer_lock;
static struct fm_lock *fm_rxtx_lock;	/* protect FM RX TX mode switch */
static struct fm_lock *fm_rtc_mutex;	/* protect FM GPS RTC drift info */

static struct fm_timer *fm_timer_sys;

static fm_bool scan_stop_flag = fm_false;
static struct fm_gps_rtc_info gps_rtc_info;
static volatile bool g_fm_stat[3] = {
	fm_false,		/* RX power */
	fm_false,		/* TX power */
	fm_false,		/* TX scan */
};

/* RDS reset related functions */
static fm_u16 fm_cur_freq_get(void);
static fm_s32 fm_cur_freq_set(fm_u16 new_freq);
static enum fm_op_state fm_op_state_get(struct fm *fmp);
static enum fm_op_state fm_op_state_set(struct fm *fmp, enum fm_op_state sta);
static void fm_timer_func(unsigned long data);
#ifdef MT6620_FM
static void fmtx_timer_func(unsigned long data);
#endif
static void fm_enable_rds_BlerCheck(struct fm *fm);
static void fm_disable_rds_BlerCheck(void);
static void fm_rds_reset_work_func(unsigned long data);
/* when interrupt be triggered by FM chip, fm_eint_handler will first be executed */
/* then fm_eint_handler will schedule fm_eint_work_func to run */
static void fm_eint_handler(void);
static void fm_eint_work_func(unsigned long data);
static fm_s32 fm_rds_parser(struct rds_rx_t *rds_raw, fm_s32 rds_size);
static fm_s32 fm_callback_register(struct fm_lowlevel_ops *ops);
static fm_s32 fm_callback_unregister(struct fm_lowlevel_ops *ops);

static fm_s32 pwrdown_flow(struct fm *fm);

static fm_u16 fm_cur_freq_get(void)
{
	return g_fm_struct ? g_fm_struct->cur_freq : 0;
}

static fm_s32 fm_cur_freq_set(fm_u16 new_freq)
{
	if (g_fm_struct)
		g_fm_struct->cur_freq = new_freq;

	return 0;
}

static enum fm_op_state fm_op_state_get(struct fm *fmp)
{
	if (fmp) {
		WCN_DBG(FM_DBG | MAIN, "op state get %d\n", fmp->op_sta);
		return fmp->op_sta;
	}

	WCN_DBG(FM_ERR | MAIN, "op state get para error\n");
	return FM_STA_UNKNOWN;
}

static enum fm_op_state fm_op_state_set(struct fm *fmp, enum fm_op_state sta)
{
	if (fmp && (sta < FM_STA_MAX)) {
		fmp->op_sta = sta;
		WCN_DBG(FM_DBG | MAIN, "op state set to %d\n", sta);
		return fmp->op_sta;
	}

	WCN_DBG(FM_ERR | MAIN, "op state set para error, %d\n", sta);
	return FM_STA_UNKNOWN;
}

enum fm_pwr_state fm_pwr_state_get(struct fm *fmp)
{
	if (fmp) {
		WCN_DBG(FM_DBG | MAIN, "pwr state get %d\n", fmp->pwr_sta);
		return fmp->pwr_sta;
	}

	WCN_DBG(FM_ERR | MAIN, "pwr state get para error\n");
	return FM_PWR_MAX;
}

enum fm_pwr_state fm_pwr_state_set(struct fm *fmp, enum fm_pwr_state sta)
{
	if (fmp && (sta < FM_PWR_MAX)) {
		fmp->pwr_sta = sta;
		WCN_DBG(FM_DBG | MAIN, "pwr state set to %d\n", sta);
		return fmp->pwr_sta;
	}

	WCN_DBG(FM_ERR | MAIN, "pwr state set para error, %d\n", sta);
	return FM_PWR_MAX;
}

fm_s32 fm_set_stat(struct fm *fmp, int which, bool stat)
{
	fm_s32 ret = 0;

	if (fmp == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (which >= 0 && which < (sizeof(g_fm_stat) / sizeof(g_fm_stat[0]))) {
		g_fm_stat[which] = stat;
		WCN_DBG(FM_DBG | MAIN, "fm set stat object=%d, stat=%d\n", which, stat);
	} else {
		ret = -1;
		WCN_DBG(FM_ERR | MAIN, "fm set stat error, object=%d, stat=%d\n", which, stat);
	}

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_get_stat(struct fm *fmp, int which, bool *stat)
{
	fm_s32 ret = 0;

	if (fmp == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (stat == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (which >= 0 && which < (sizeof(g_fm_stat) / sizeof(g_fm_stat[0]))) {
		*stat = g_fm_stat[which];
		WCN_DBG(FM_DBG | MAIN, "fm get stat object=%d, stat=%d\n", which, *stat);
	} else {
		ret = -1;
		WCN_DBG(FM_ERR | MAIN, "fm get stat error, object=%d\n", which);
	}

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

static volatile fm_s32 subsys_rst_state = FM_SUBSYS_RST_OFF;

fm_s32 fm_sys_state_get(struct fm *fmp)
{
	return subsys_rst_state;
}

fm_s32 fm_sys_state_set(struct fm *fmp, fm_s32 sta)
{
	if ((sta >= FM_SUBSYS_RST_OFF) && (sta < FM_SUBSYS_RST_MAX)) {
		WCN_DBG(FM_NTC | MAIN, "sys state set from %d to %d\n", subsys_rst_state, sta);
		subsys_rst_state = sta;
	} else {
		WCN_DBG(FM_ERR | MAIN, "sys state set para error, %d\n", sta);
	}

	return subsys_rst_state;
}

fm_s32 fm_subsys_reset(struct fm *fm)
{
	/* check if we are resetting */
	if (fm_sys_state_get(fm) != FM_SUBSYS_RST_OFF) {
		WCN_DBG(FM_NTC | MAIN, "subsys reset is ongoing\n");
		goto out;
	}

	if (fm == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	fm->timer_wkthd->add_work(fm->timer_wkthd, fm->rst_wk);

out:
	return 0;
}

fm_s32 fm_wholechip_rst_cb(fm_s32 sta)
{
	struct fm *fm = g_fm_struct;

	if (!fm)
		return 0;

	if (sta == 1) {
		if (fm_sys_state_get(fm) == FM_SUBSYS_RST_OFF)
			fm_sys_state_set(fm, FM_SUBSYS_RST_START);
	} else {
		fm->timer_wkthd->add_work(fm->timer_wkthd, fm->rst_wk);
	}
	return 0;
}

fm_s32 fm_open(struct fm *fmp)
{
	fm_s32 ret = 0;
	fm_s32 chipid;

	if (fmp == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	/* makesure fmp->ref >= 0 */
	/* fmp->ref = (fmp->ref < 0) ? 0 : fmp->ref; */
	/* fmp->ref++; */

	/* if ((fmp->ref > 0) && (fmp->chipon == fm_false)) */
	if (fmp->chipon == fm_false) {
		chipid = mtk_wcn_wmt_chipid_query();
		WCN_DBG(FM_NTC | MAIN, "wmt chip id=0x%x\n", chipid);
		if (chipid == 0x6628) {	/* get WCN chip ID */
#ifdef MT6628_FM
			fm_low_ops = MT6628fm_low_ops;
			fmp->chip_id = 0x6628;
#endif
		} else if (chipid == 0x6620) {
#ifdef MT6620_FM
			fm_low_ops = MT6620fm_low_ops;
			fmp->chip_id = 0x6620;
#endif
		} else if ((chipid == 0x6572) || (chipid == 0x6582) || (chipid == 0x6592)
			   || (chipid == 0x8127) || (chipid == 0x6571) || (chipid == 0x6752)
			   || (chipid == 0x0321) || (chipid == 0x0335) || (chipid == 0x0337)
			   || (chipid == 0x6735) || (chipid == 0x8163) || (chipid == 0x6755)
			   || (chipid == 0x0326)) {
#ifdef MT6627_FM
			fm_low_ops = MT6627fm_low_ops;
			fmp->chip_id = 0x6627;
#endif
		} else if (chipid == 0x6580) {
#ifdef MT6580_FM
			fm_low_ops = MT6580fm_low_ops;
			fmp->chip_id = 0x6580;
#endif
		} else if (chipid == 0x6630) {
#ifdef MT6630_FM
			fm_low_ops = MT6630fm_low_ops;
			fmp->chip_id = 0x6630;
#endif
		}

/*
		if(fm_low_ops.bi.pwron == NULL)
		{
			WCN_DBG(FM_NTC | MAIN, "get fm_low_ops fail\n");
	    fmp->ref--;
	    ret = -ENODEV;
	    goto out;
	}

	ret = fm_low_ops.bi.pwron(0);
	if (ret) {
	    fmp->ref--;
	    ret = -ENODEV;
	    goto out;
	}

	fmp->chipon = fm_true;
*/
		fm_eint_pin_cfg(FM_EINT_PIN_EINT_MODE);
		fm_request_eint(fm_eint_handler);
	}
/* out: */
	/* WCN_DBG(FM_NTC | MAIN, "fm->ref:%d\n", fmp->ref); */
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_close(struct fm *fmp)
{
	fm_s32 ret = 0;

	if (fmp == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

/*
    fmp->ref--;
    if (fmp->ref == 0) {
	pwrdown_flow(fmp);
	if (fmp->chipon == fm_true) {
	    fm_eint_pin_cfg(FM_EINT_PIN_GPIO_MODE);
	    fm_low_ops.bi.pwroff(0);
	    fmp->chipon = fm_false;
	}
    }

    //makesure fm->ref >= 0
    fmp->ref = (fmp->ref < 0) ? 0 : fmp->ref;
    WCN_DBG(FM_NTC | MAIN, "fmp->ref:%d\n", fmp->ref);
*/

	fm_eint_pin_cfg(FM_EINT_PIN_GPIO_MODE);

	FM_UNLOCK(fm_ops_lock);

	return ret;
}

/*
fm_s32 fm_flush(struct fm *fmp)
{
    fm_s32 ret = 0;

    if (fmp == NULL) {
	    pr_err("%s,invalid pointer\n", __func__);
	    return -FM_EPARA;
    }
    if (FM_LOCK(fm_ops_lock)) return (-FM_ELOCK);

    if (FM_PWR_OFF == fm_pwr_state_get(fmp))
    {
	WCN_DBG(FM_NTC | MAIN, "should power off combo!\n");
	if (fmp->chipon == fm_true)
	{
	    fm_low_ops.bi.pwroff(0);
	    fmp->chipon = fm_false;
	}
    }
    WCN_DBG(FM_NTC | MAIN, "fm_flush done\n");
    FM_UNLOCK(fm_ops_lock);

    return ret;
}
*/
fm_s32 fm_rds_read(struct fm *fmp, fm_s8 *dst, fm_s32 len)
{
	fm_s32 copy_len = 0, left = 0;

	copy_len = sizeof(rds_t);

	if (FM_EVENT_GET(fmp->rds_event) == FM_RDS_DATA_READY) {
		if (FM_LOCK(fm_read_lock))
			return -FM_ELOCK;

		left = copy_to_user((void *)dst, fmp->pstRDSData, (unsigned long)copy_len);
		if (left)
			WCN_DBG(FM_ALT | MAIN, "fm_read copy failed\n");
		else
			fmp->pstRDSData->event_status = 0x0000;

		WCN_DBG(FM_DBG | MAIN, "fm_read copy len:%d\n", (copy_len - left));

		FM_EVENT_RESET(fmp->rds_event);
		FM_UNLOCK(fm_read_lock);
	} else {
		/*if (FM_EVENT_WAIT(fmp->rds_event, FM_RDS_DATA_READY) == 0) {
		   WCN_DBG(FM_DBG | MAIN, "fm_read wait ok\n");
		   goto RESTART;
		   } else {
		   WCN_DBG(FM_ALT | MAIN, "fm_read wait err\n");
		   return 0;
		   } *//*event wait caused AP stop RDS thread and re-read RDS, which caused issue ALPS00595367 */

		WCN_DBG(FM_DBG | MAIN, "fm_read no event now\n");
		return 0;
	}

	return copy_len - left;
}

fm_s32 fm_powerup(struct fm *fm, struct fm_tune_parm *parm)
{
	fm_s32 ret = 0;
	fm_u8 tmp_vol;

	if (fm_low_ops.bi.pwron == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.pwrupseq == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	/* for normal case */
	if (fm_low_ops.bi.pwron == NULL) {
		WCN_DBG(FM_NTC | MAIN, "get fm_low_ops fail\n");
		ret = -ENODEV;
		goto out;
	}

	if (fm->chipon == fm_false) {
		ret = fm_low_ops.bi.pwron(0);
		if (ret) {
			ret = -ENODEV;
			goto out;
		}
		fm->chipon = fm_true;
	}

	if (FM_PWR_RX_ON == fm_pwr_state_get(fm)) {
		WCN_DBG(FM_NTC | MAIN, "already pwron!\n");
		goto out;
	} else if (FM_PWR_TX_ON == fm_pwr_state_get(fm)) {
		/* if Tx is on, we need pwr down TX first */
		WCN_DBG(FM_NTC | MAIN, "power down TX first!\n");

		ret = fm_powerdowntx(fm);
		if (ret) {
			WCN_DBG(FM_ERR | MAIN, "FM pwr down Tx fail!\n");
			return ret;
		}
	}

	fm_pwr_state_set(fm, FM_PWR_RX_ON);

	/* execute power on sequence */
	ret = fm_low_ops.bi.pwrupseq(&fm->chip_id, &fm->device_id);
	if (ret)
		goto out;

	fm_enable_eint();
	fm_cur_freq_set(parm->freq);

	parm->err = FM_SUCCESS;
	if (fm_low_ops.bi.low_pwr_wa)
		fm_low_ops.bi.low_pwr_wa(1);

	fm_low_ops.bi.volget(&tmp_vol);
	WCN_DBG(FM_DBG | MAIN, "vol=%d!!!\n", tmp_vol);

	/* fm_low_ops.bi.volset(0); */
	fm->vol = 15;
	if (fm_low_ops.ri.rds_bci_get) {
		fm_timer_sys->init(fm_timer_sys, fm_timer_func, (unsigned long)g_fm_struct,
				   fm_low_ops.ri.rds_bci_get(), 0);
		fm_timer_sys->start(fm_timer_sys);
	} else {
		WCN_DBG(FM_NTC | MAIN, "start timer fail!!!\n");
	}

out:
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

/*
 *  fm_powerup_tx
 */
fm_s32 fm_powerup_tx(struct fm *fm, struct fm_tune_parm *parm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.pwron == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.pwrupseq_tx == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (FM_PWR_TX_ON == fm_pwr_state_get(fm)) {
		WCN_DBG(FM_NTC | MAIN, "already pwron!\n");
		parm->err = FM_BADSTATUS;
		goto out;
	} else if (FM_PWR_RX_ON == fm_pwr_state_get(fm)) {
		/* if Rx is on, we need pwr down  first */
		ret = fm_powerdown(fm, 0);
		if (ret) {
			WCN_DBG(FM_ERR | MAIN, "FM pwr down Rx fail!\n");
			goto out;
		}
	}

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	/* for normal case */
	if (fm->chipon == fm_false) {
		fm_low_ops.bi.pwron(0);
		fm->chipon = fm_true;
	}

	fm_pwr_state_set(fm, FM_PWR_TX_ON);
	ret = fm_low_ops.bi.pwrupseq_tx();

	if (ret) {
		parm->err = FM_FAILED;
		fm_pwr_state_set(fm, FM_PWR_OFF);
		WCN_DBG(FM_ERR | MAIN, "FM pwr up Tx fail!\n");
	} else {
		parm->err = FM_SUCCESS;
	}
	fm_cur_freq_set(parm->freq);
#ifdef MT6620_FM
	/* if(fm_low_ops.ri.rds_bci_get) */
	{
		fm_timer_sys->count = 0;
		fm_timer_sys->tx_pwr_ctrl_en = FM_TX_PWR_CTRL_ENABLE;
		fm_timer_sys->tx_rtc_ctrl_en = FM_TX_RTC_CTRL_ENABLE;
		fm_timer_sys->tx_desense_en = FM_TX_DESENSE_ENABLE;

		fm_timer_sys->init(fm_timer_sys, fmtx_timer_func, (unsigned long)g_fm_struct, FM_TIMER_TIMEOUT_MIN, 0);
		fm_timer_sys->start(fm_timer_sys);
		WCN_DBG(FM_NTC | MAIN, "start timer ok\n");
	}
#endif
out:
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

static fm_s32 pwrdown_flow(struct fm *fm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.ri.rds_onoff == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.pwrdownseq == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (FM_PWR_OFF == fm_pwr_state_get(fm)) {
		WCN_DBG(FM_NTC | MAIN, "FMSYS already pwroff!\n");
		goto out;
	}

	if (FM_PWR_RX_ON == fm_pwr_state_get(fm)) {
		/* Disable all interrupt */
		fm_disable_rds_BlerCheck();
		fm_low_ops.ri.rds_onoff(fm->pstRDSData, fm_false);
		fm_disable_eint();

		fm_pwr_state_set(fm, FM_PWR_OFF);

		/* execute power down sequence */
		ret = fm_low_ops.bi.pwrdownseq();

		if (fm_low_ops.bi.low_pwr_wa)
			fm_low_ops.bi.low_pwr_wa(0);

		WCN_DBG(FM_ALT | MAIN, "pwrdown_flow exit\n");
	}
out:
	return ret;
}

fm_s32 fm_powerdown(struct fm *fm, int type)
{
	fm_s32 ret = 0;

	if (1 == type) {	/* 0: RX 1: TX */
		ret = fm_powerdowntx(fm);
	} else {
		if (FM_LOCK(fm_ops_lock))
			return -FM_ELOCK;
		if (FM_LOCK(fm_rxtx_lock))
			return -FM_ELOCK;

		ret = pwrdown_flow(fm);

		FM_UNLOCK(fm_rxtx_lock);
		FM_UNLOCK(fm_ops_lock);
	}

	if ((FM_PWR_OFF == fm_pwr_state_get(fm)) && (fm->chipon == fm_true)) {
		fm_low_ops.bi.pwroff(0);
		fm->chipon = fm_false;
	}

	return ret;
}

fm_s32 fm_powerdowntx(struct fm *fm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.pwrdownseq_tx == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_rxtx_lock))
		return -FM_ELOCK;

	if (FM_PWR_TX_ON == fm_pwr_state_get(fm)) {
#ifdef MT6620_FM
		if (FM_LOCK(fm_timer_lock))
			return -FM_ELOCK;
		fm_timer_sys->stop(fm_timer_sys);
		FM_UNLOCK(fm_timer_lock);
		fm_timer_sys->count = 0;
		fm_timer_sys->tx_pwr_ctrl_en = FM_TX_PWR_CTRL_DISABLE;
		fm_timer_sys->tx_rtc_ctrl_en = FM_TX_RTC_CTRL_DISABLE;
		fm_timer_sys->tx_desense_en = FM_TX_DESENSE_DISABLE;
#endif
		/* fm_low_ops.ri.rds_onoff(fm->pstRDSData, fm_false); */
		/* execute power down sequence */
		ret = fm_low_ops.bi.pwrdownseq_tx();
		if (ret)
			WCN_DBG(FM_ERR | MAIN, "pwrdown tx fail\n");

		fm_pwr_state_set(fm, FM_PWR_OFF);
		WCN_DBG(FM_NTC | MAIN, "pwrdown tx ok\n");
	}

	FM_UNLOCK(fm_rxtx_lock);
	/* FM_UNLOCK(fm_ops_lock); */
	return ret;
}

fm_s32 fm_seek(struct fm *fm, struct fm_seek_parm *parm)
{
	fm_s32 ret = 0;
	fm_u16 seekdir, space;

	if (fm_low_ops.bi.seek == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON) {
		parm->err = FM_BADSTATUS;
		ret = -EPERM;
		goto out;
	}

	if (parm->space == FM_SPACE_100K) {
		space = 0x0002;
	} else if (parm->space == FM_SPACE_50K) {
		space = 0x0001;
	} else if (parm->space == FM_SPACE_200K) {
		space = 0x0004;
	} else {
		/* default */
		space = 0x0002;
	}

	if (parm->band == FM_BAND_UE) {
		fm->min_freq = FM_UE_FREQ_MIN;
		fm->max_freq = FM_UE_FREQ_MAX;
	} else if (parm->band == FM_BAND_JAPANW) {
		fm->min_freq = FM_JP_FREQ_MIN;
		fm->max_freq = FM_JP_FREQ_MAX;
	} else if (parm->band == FM_BAND_SPECIAL) {
		fm->min_freq = FM_RX_BAND_FREQ_L;
		fm->max_freq = FM_RX_BAND_FREQ_H;
	} else {
		WCN_DBG(FM_ALT | MAIN, "band:%d out of range\n", parm->band);
		parm->err = FM_EPARM;
		ret = -EPERM;
		goto out;
	}

	if (parm->freq < fm->min_freq || parm->freq > fm->max_freq) {
		WCN_DBG(FM_ALT | MAIN, "freq:%d out of range\n", parm->freq);
		parm->err = FM_EPARM;
		ret = -EPERM;
		goto out;
	}

	if (parm->seekdir == FM_SEEK_UP)
		seekdir = FM_SEEK_UP;
	else
		seekdir = FM_SEEK_DOWN;

	fm_op_state_set(fm, FM_STA_SEEK);

	/* seek successfully */
	if (fm_true == fm_low_ops.bi.seek(fm->min_freq, fm->max_freq, &(parm->freq), seekdir, space)) {
		parm->err = FM_SUCCESS;
	} else {
		parm->err = FM_SEEK_FAILED;
		ret = -EPERM;
	}

	if ((parm->space != FM_SPACE_50K) && (1 == fm_get_channel_space(parm->freq)))
		parm->freq /= 10;	/* (8750 / 10) = 875 */

	fm_op_state_set(fm, FM_STA_PLAY);
out:
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

/***********************************************************
Function:	fm_tx_scan()

Description:	get the valid channels for fm tx function

Para:		fm--->fm driver global info
			parm--->input/output parameter

Return:		0, if success; error code, if failed
***********************************************************/
fm_s32 fm_tx_scan(struct fm *fm, struct fm_tx_scan_parm *parm)
{
	fm_s32 ret = 0;
	fm_u16 scandir = 0;
	fm_u16 space = parm->space;

	if (fm_low_ops.bi.tx_scan == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (fm->chipon != fm_true) {
		parm->err = FM_BADSTATUS;
		ret = -EPERM;
		WCN_DBG(FM_ERR | MAIN, "tx scan chip not on\n");
		goto out;
	}
	switch (parm->scandir) {
	case FM_TX_SCAN_UP:
		scandir = 0;
		break;
	case FM_TX_SCAN_DOWN:
		scandir = 1;
		break;
	default:
		scandir = 0;
		break;
	}

	if (parm->band == FM_BAND_UE) {
		fm->min_freq = FM_UE_FREQ_MIN;
		fm->max_freq = FM_UE_FREQ_MAX;
	} else if (parm->band == FM_BAND_JAPANW) {
		fm->min_freq = FM_JP_FREQ_MIN;
		fm->max_freq = FM_JP_FREQ_MAX;
	} else if (parm->band == FM_BAND_SPECIAL) {
		fm->min_freq = FM_FREQ_MIN;
		fm->max_freq = FM_FREQ_MAX;
	} else {
		WCN_DBG(FM_ERR | MAIN, "band:%d out of range\n", parm->band);
		parm->err = FM_EPARM;
		ret = -EPERM;
		goto out;
	}

	if (unlikely((parm->freq < fm->min_freq) || (parm->freq > fm->max_freq))) {
		parm->err = FM_EPARM;
		ret = -EPERM;
		WCN_DBG(FM_ERR | MAIN, "%s parm->freq:%d fm->min_freq: %d fm->max_freq:%d\n",
		__func__, parm->freq, fm->min_freq, fm->max_freq);
		goto out;
	}

	if (unlikely(parm->ScanTBLSize < TX_SCAN_MIN || parm->ScanTBLSize > TX_SCAN_MAX)) {
		parm->err = FM_EPARM;
		ret = -EPERM;
		WCN_DBG(FM_ERR | MAIN, "%s parm->ScanTBLSize:%d TX_SCAN_MIN:%d TX_SCAN_MAX:%d\n",
		__func__, parm->ScanTBLSize, TX_SCAN_MIN, TX_SCAN_MAX);
		goto out;
	}

	ret = fm_low_ops.bi.anaswitch(FM_ANA_SHORT);
	if (ret) {
		WCN_DBG(FM_ERR | MAIN, "switch to short ana failed\n");
		goto out;
	}
	/* do tx scan */
	ret = fm_low_ops.bi.tx_scan(fm->min_freq, fm->max_freq, &(parm->freq),
					  parm->ScanTBL, &(parm->ScanTBLSize), scandir, space);
	if (!ret) {
		parm->err = FM_SUCCESS;
	} else {
		WCN_DBG(FM_ERR | MAIN, "fm_tx_scan failed\n");
		parm->err = FM_SCAN_FAILED;
	}
out:
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_scan(struct fm *fm, struct fm_scan_parm *parm)
{
	fm_s32 ret = 0;
	fm_u16 scandir = FM_SEEK_UP, space;

	if (fm_low_ops.bi.scan == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	WCN_DBG(FM_NTC | MAIN, "fm_scan:start\n");
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON) {
		parm->err = FM_BADSTATUS;
		ret = -EPERM;
		goto out;
	}

	if (parm->space == FM_SPACE_100K) {
		space = 0x0002;
	} else if (parm->space == FM_SPACE_50K) {
		space = 0x0001;
	} else if (parm->space == FM_SPACE_200K) {
		space = 0x0004;
	} else {
		/* default */
		space = 0x0002;
	}

	if (parm->band == FM_BAND_UE) {
		fm->min_freq = FM_UE_FREQ_MIN;
		fm->max_freq = FM_UE_FREQ_MAX;
	} else if (parm->band == FM_BAND_JAPANW) {
		fm->min_freq = FM_JP_FREQ_MIN;
		fm->max_freq = FM_JP_FREQ_MAX;
	} else if (parm->band == FM_BAND_SPECIAL) {
		fm->min_freq = FM_RX_BAND_FREQ_L;
		fm->max_freq = FM_RX_BAND_FREQ_H;
	} else {
		WCN_DBG(FM_ALT | MAIN, "band:%d out of range\n", parm->band);
		parm->err = FM_EPARM;
		ret = -EPERM;
		goto out;
	}

	fm_op_state_set(fm, FM_STA_SCAN);
	scan_stop_flag = fm_false;

	if (fm_true ==
	    fm_low_ops.bi.scan(fm->min_freq, fm->max_freq, &(parm->freq), parm->ScanTBL,
			       &(parm->ScanTBLSize), scandir, space)) {
		parm->err = FM_SUCCESS;
	} else {
		WCN_DBG(FM_ALT | MAIN, "fm_scan failed\n");
		parm->err = FM_SEEK_FAILED;
		ret = -EPERM;
	}

	fm_op_state_set(fm, FM_STA_STOP);

out:
	FM_UNLOCK(fm_ops_lock);
	WCN_DBG(FM_NTC | MAIN, "fm_scan:done\n");
	return ret;
}

#define SCAN_SEG_LEN 250
static struct fm_cqi cqi_buf[SCAN_SEG_LEN];

fm_s32 fm_scan_new(struct fm *fm, struct fm_scan_t *parm)
{
	fm_s32 ret = 0;
	fm_s32 tmp;
	fm_s32 cnt, seg;
	fm_s32 i, j;
	fm_s32 start_freq, end_freq;
	fm_u16 scan_tbl[FM_SCANTBL_SIZE];	/* need no less than the chip */
	fm_u16 tbl_size = FM_SCANTBL_SIZE;
	fm_u16 tmp_freq = 0;
	fm_s32 chl_cnt;
	fm_s32 ch_offset, step, tmp_val;
	fm_u16 space_idx = 0x0002;

	fm_s32 cqi_cnt, cqi_idx;
	fm_s8 *buf = (fm_s8 *) cqi_buf;

	if (fm_low_ops.bi.scan == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.cqi_get == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	/* caculate channel number, get segment count */
	cnt = (parm->upper - parm->lower) / parm->space + 1;	/* Eg, (10800 - 8750) / 5 = 411 */
	/* Eg, (411 / 200) + ((411 % 200) ? 1 : 0) = 2 + 1 = 3 */
	seg = (cnt / SCAN_SEG_LEN) + ((cnt % SCAN_SEG_LEN) ? 1 : 0);

	WCN_DBG(FM_NTC | MAIN, "total ch %d, seg %d\n", cnt, seg);

	/* alloc memory */
	tmp = cnt * sizeof(struct fm_ch_rssi *);
	if (parm->sr_size < tmp) {
		if (parm->sr.ch_rssi_buf) {
			fm_free(parm->sr.ch_rssi_buf);
			parm->sr.ch_rssi_buf = NULL;
		}
		parm->sr_size = tmp;
	}

	if (!parm->sr.ch_rssi_buf) {
		parm->sr.ch_rssi_buf = (struct fm_ch_rssi *)fm_zalloc(parm->sr_size);
		if (!parm->sr.ch_rssi_buf) {
			WCN_DBG(FM_ERR | MAIN, "scan alloc mem failed\n");
			parm->sr_size = 0;
			return -2;
		}
	}

	if (parm->space == 5)
		space_idx = 0x0001;	/* 50Khz */
	else if (parm->space == 10)
		space_idx = 0x0002;	/* 100Khz */
	else if (parm->space == 20)
		space_idx = 0x0004;	/* 200Khz */

	fm_op_state_set(fm, FM_STA_SCAN);

	/* do scan */
	chl_cnt = 0;
	for (i = 0; (i < seg) && (fm_false == scan_stop_flag); i++) {
		cqi_cnt = 0;
		cqi_idx = 0;

		start_freq = parm->lower + SCAN_SEG_LEN * parm->space * i;
		end_freq = parm->lower + SCAN_SEG_LEN * parm->space * (i + 1) - parm->space;
		end_freq = (end_freq > parm->upper) ? parm->upper : end_freq;

		WCN_DBG(FM_NTC | MAIN, "seg %d, start %d, end %d\n", i, start_freq, end_freq);
		if (fm_false ==
		    fm_low_ops.bi.scan(start_freq, end_freq, &tmp_freq, scan_tbl, &tbl_size, FM_SEEK_UP, space_idx)) {
			ret = -1;
			goto out;
		}
		/* get channel count */
		for (ch_offset = 0; ch_offset < FM_SCANTBL_SIZE; ch_offset++) {
			if (scan_tbl[ch_offset] == 0)
				continue;
			for (step = 0; step < 16; step++) {
				if (scan_tbl[ch_offset] & (1 << step)) {
					tmp_val = start_freq + (ch_offset * 16 + step) * parm->space;
					if (tmp_val <= end_freq) {
						/* record valid  result channel */
						WCN_DBG(FM_NTC | MAIN, "freq %d\n", tmp_val);
						parm->sr.ch_rssi_buf[chl_cnt].freq = tmp_val;
						chl_cnt++;
						cqi_cnt++;
					}
				}
			}
		}

		/* get cqi */
		if (fm_low_ops.bi.cqi_get) {
			tmp = cqi_cnt;
			while ((cqi_cnt > 0) && (fm_false == scan_stop_flag)) {
				ret =
				    fm_low_ops.bi.cqi_get(buf +
							  (16 * sizeof(struct fm_cqi) * cqi_idx),
							  sizeof(cqi_buf) - (16 * sizeof(struct fm_cqi) * cqi_idx));
				if (ret)
					goto out;

				cqi_cnt -= 16;
				cqi_idx++;
			}
			cqi_cnt = tmp;

			/* fill cqi to result buffer */
			for (j = 0; j < cqi_cnt; j++) {
				tmp = chl_cnt - cqi_cnt + j;	/* target pos */
				parm->sr.ch_rssi_buf[tmp].freq = (fm_u16) cqi_buf[j].ch;
				parm->sr.ch_rssi_buf[tmp].rssi = cqi_buf[j].rssi;
				WCN_DBG(FM_NTC | MAIN, "idx %d, freq %d, rssi %d\n", tmp,
					parm->sr.ch_rssi_buf[tmp].freq, parm->sr.ch_rssi_buf[tmp].rssi);
			}
		}
		/* 6620 won't get rssi in scan new */
		/* else if(fm_low_ops.bi.rssiget) */
	}

	fm_op_state_set(fm, FM_STA_STOP);

out:
	scan_stop_flag = fm_false;
	FM_UNLOCK(fm_ops_lock);
	parm->num = chl_cnt;
	return ret;
}

fm_s32 fm_seek_new(struct fm *fm, struct fm_seek_t *parm)
{
	fm_s32 ret = 0;
	fm_s32 space_idx = 0x0002;

	if (fm_low_ops.bi.setfreq == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.rssiget == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.rampdown == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.seek == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (parm->freq < parm->lower || parm->freq > parm->upper) {
		WCN_DBG(FM_ERR | MAIN, "seek start freq:%d out of range\n", parm->freq);
		ret = -EPERM;
		goto out;
	}
	/* tune to start freq */
	fm_low_ops.bi.rampdown();
	fm_low_ops.bi.setfreq(parm->freq);

	if (parm->space == 5)
		space_idx = 0x0001;
	else if (parm->space == 10)
		space_idx = 0x0002;
	else if (parm->space == 20)
		space_idx = 0x0004;

	fm_op_state_set(fm, FM_STA_SEEK);
	if (fm_false == fm_low_ops.bi.seek(parm->lower, parm->upper, &(parm->freq), parm->dir, space_idx)) {
		ret = -1;
		goto out;
	}
	/* tune to new channel */
	fm_low_ops.bi.setfreq(parm->freq);
	fm_low_ops.bi.rssiget(&parm->th);

out:
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_tune_new(struct fm *fm, struct fm_tune_t *parm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.mute == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.rampdown == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.setfreq == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	WCN_DBG(FM_DBG | MAIN, "%s\n", __func__);

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON) {
		ret = -EPERM;
		goto out;
	}

	if (parm->freq < parm->lower || parm->freq > parm->upper) {
		WCN_DBG(FM_ERR | MAIN, "tune freq:%d out of range\n", parm->freq);
		ret = -EPERM;
		goto out;
	}
/* fm_low_ops.bi.mute(fm_true); */
	fm_low_ops.bi.rampdown();

	if (fm_cur_freq_get() != parm->freq)
		fm_memset(fm->pstRDSData, 0, sizeof(rds_t));

	fm_op_state_set(fm, FM_STA_TUNE);
	WCN_DBG(FM_ALT | MAIN, "tuning to %d\n", parm->freq);

	if (fm_false == fm_low_ops.bi.setfreq(parm->freq)) {
		WCN_DBG(FM_ALT | MAIN, "FM tune failed\n");
		ret = -EPERM;
		goto out;
	}
/* fm_low_ops.bi.mute(fm_false); */
	fm_op_state_set(fm, FM_STA_PLAY);
out:
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_cqi_get(struct fm *fm, fm_s32 ch_num, fm_s8 *buf, fm_s32 buf_size)
{
	fm_s32 ret = 0;
	fm_s32 idx = 0;

	if (fm_low_ops.bi.cqi_get == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (fm_true == scan_stop_flag) {
		WCN_DBG(FM_NTC | MAIN, "scan flow aborted, do not get CQI\n");
		ret = -1;
		goto out;
	}

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON) {
		ret = -EPERM;
		goto out;
	}

	if (ch_num * sizeof(struct fm_cqi) > buf_size) {
		ret = -EPERM;
		goto out;
	}

	fm_op_state_set(fm, FM_STA_SCAN);

	idx = 0;
	WCN_DBG(FM_NTC | MAIN, "cqi num %d\n", ch_num);

	while (ch_num > 0) {
		ret =
		    fm_low_ops.bi.cqi_get(buf + 16 * sizeof(struct fm_cqi) * idx,
					  buf_size - 16 * sizeof(struct fm_cqi) * idx);

		if (ret)
			goto out;

		ch_num -= 16;
		idx++;
	}

	fm_op_state_set(fm, FM_STA_STOP);

out:
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

/*  fm_is_dese_chan -- check if gived channel is a de-sense channel or not
  *  @pfm - fm driver global DS
  *  @freq - gived channel
  *  return value: 0, not a dese chan; 1, a dese chan; else error NO.
  */
fm_s32 fm_is_dese_chan(struct fm *pfm, fm_u16 freq)
{
	fm_s32 ret = 0;

	if (pfm == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.is_dese_chan) {
		if (FM_LOCK(fm_ops_lock))
			return -FM_ELOCK;
		ret = fm_low_ops.bi.is_dese_chan(freq);
		FM_UNLOCK(fm_ops_lock);
	}

	return ret;
}

/*  fm_is_dese_chan -- check if gived channel is a de-sense channel or not
  *  @pfm - fm driver global DS
  *  @freq - gived channel
  *  return value: 0, not a dese chan; 1, a dese chan; else error NO.
  */
fm_s32 fm_desense_check(struct fm *pfm, fm_u16 freq, fm_s32 rssi)
{
	fm_s32 ret = 0;

	if (pfm == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.desense_check) {
		if (FM_LOCK(fm_ops_lock))
			return -FM_ELOCK;
		ret = fm_low_ops.bi.desense_check(freq, rssi);
		FM_UNLOCK(fm_ops_lock);
	}

	return ret;
}

fm_s32 fm_dump_reg(void)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.dumpreg) {
		if (FM_LOCK(fm_ops_lock))
			return -FM_ELOCK;
		ret = fm_low_ops.bi.dumpreg();
		FM_UNLOCK(fm_ops_lock);
	}
	return ret;
}

/*  fm_get_hw_info -- hw info: chip id, ECO version, DSP ROM version, Patch version
  *  @pfm - fm driver global DS
  *  @freq - target buffer
  *  return value: 0, success; else error NO.
  */
fm_s32 fm_get_hw_info(struct fm *pfm, struct fm_hw_info *req)
{
	fm_s32 ret = 0;

	if (req == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	/* default value for all chips */
	req->chip_id = 0x000066FF;
	req->eco_ver = 0x00000000;
	req->rom_ver = 0x00000001;
	req->patch_ver = 0x00000100;
	req->reserve = 0x00000000;

	/* get actual chip hw info */
	if (fm_low_ops.bi.hwinfo_get) {
		if (FM_LOCK(fm_ops_lock))
			return -FM_ELOCK;
		ret = fm_low_ops.bi.hwinfo_get(req);
		FM_UNLOCK(fm_ops_lock);
	}

	return ret;
}

fm_s32 fm_get_aud_info(fm_audio_info_t *data)
{
	if (fm_low_ops.bi.get_aud_info)
		return fm_low_ops.bi.get_aud_info(data);

	data->aud_path = FM_AUD_ERR;
	data->i2s_info.mode = FM_I2S_MODE_ERR;
	data->i2s_info.status = FM_I2S_STATE_ERR;
	data->i2s_info.rate = FM_I2S_SR_ERR;
	return 0;
}

/*  fm_get_i2s_info -- i2s info: on/off, master/slave, sample rate
  *  @pfm - fm driver global DS
  *  @req - target buffer
  *  return value: 0, success; else error NO.
  */
fm_s32 fm_get_i2s_info(struct fm *pfm, struct fm_i2s_info *req)
{
	if (fm_low_ops.bi.i2s_get == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	return fm_low_ops.bi.i2s_get(&req->status, &req->mode, &req->rate);
}

fm_s32 fm_hwscan_stop(struct fm *fm)
{
	fm_s32 ret = 0;

	if ((FM_STA_SCAN != fm_op_state_get(fm)) && (FM_STA_SEEK != fm_op_state_get(fm))) {
		WCN_DBG(FM_WAR | MAIN, "fm isn't on scan, no need stop\n");
		return ret;
	}

	if (fm_low_ops.bi.scanstop == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	fm_low_ops.bi.scanstop();
	fm_low_ops.bi.seekstop();
	scan_stop_flag = fm_true;
	WCN_DBG(FM_DBG | MAIN, "fm will stop scan\n");

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	fm_low_ops.bi.rampdown();
	fm_low_ops.bi.setfreq(fm_cur_freq_get());

	FM_UNLOCK(fm_ops_lock);

	return ret;
}

/* fm_ana_switch -- switch antenna to long/short
 * @fm - fm driver main data structure
 * @antenna - 0, long; 1, short
 * If success, return 0; else error code
 */
fm_s32 fm_ana_switch(struct fm *fm, fm_s32 antenna)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.anaswitch == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	WCN_DBG(FM_DBG | MAIN, "Switching ana to %s\n", antenna ? "short" : "long");
	fm->ana_type = antenna;

	if ((FM_PWR_RX_ON == fm_pwr_state_get(fm)) || (FM_PWR_TX_ON == fm_pwr_state_get(fm)))
		ret = fm_low_ops.bi.anaswitch(antenna);

	if (ret)
		WCN_DBG(FM_ALT | MAIN, "Switch ana Failed\n");
	else
		WCN_DBG(FM_DBG | MAIN, "Switch ana OK!\n");

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

/* volume?[0~15] */
fm_s32 fm_setvol(struct fm *fm, fm_u32 vol)
{
	fm_u8 tmp_vol;

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON)
		return -EPERM;

	if (fm_low_ops.bi.volset == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	tmp_vol = (vol > 15) ? 15 : vol;
	fm_low_ops.bi.volset(tmp_vol);
	fm->vol = (fm_s32) tmp_vol;

	FM_UNLOCK(fm_ops_lock);
	return 0;
}

fm_s32 fm_getvol(struct fm *fm, fm_u32 *vol)
{
	fm_u8 tmp_vol;

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON)
		return -EPERM;

	if (fm_low_ops.bi.volget == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	fm_low_ops.bi.volget(&tmp_vol);
	*vol = (fm_u32) tmp_vol;

	FM_UNLOCK(fm_ops_lock);
	return 0;
}

fm_s32 fm_mute(struct fm *fm, fm_u32 bmute)
{
	fm_s32 ret = 0;

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON) {
		ret = -EPERM;
		return ret;
	}
	if (fm_low_ops.bi.mute == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (bmute) {
		ret = fm_low_ops.bi.mute(fm_true);
		fm->mute = fm_true;
	} else {
		ret = fm_low_ops.bi.mute(fm_false);
		fm->mute = fm_false;
	}

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_getrssi(struct fm *fm, fm_s32 *rssi)
{
	fm_s32 ret = 0;

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON) {
		ret = -EPERM;
		return ret;
	}
	if (fm_low_ops.bi.rssiget == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.rssiget(rssi);

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_reg_read(struct fm *fm, fm_u8 addr, fm_u16 *val)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.read == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.read(addr, val);

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_reg_write(struct fm *fm, fm_u8 addr, fm_u16 val)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.write == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.write(addr, val);

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_top_read(struct fm *fm, fm_u16 addr, fm_u32 *val)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.top_read == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.top_read(addr, val);

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_top_write(struct fm *fm, fm_u16 addr, fm_u32 val)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.top_write == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.top_write(addr, val);

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_host_read(struct fm *fm, fm_u32 addr, fm_u32 *val)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.host_read == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.host_read(addr, val);

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_host_write(struct fm *fm, fm_u32 addr, fm_u32 val)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.host_write == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.host_write(addr, val);

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_chipid_get(struct fm *fm, fm_u16 *chipid)
{
	if (chipid == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	*chipid = fm->chip_id;

	FM_UNLOCK(fm_ops_lock);
	return 0;
}

fm_s32 fm_monostereo_get(struct fm *fm, fm_u16 *ms)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.msget == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (ms == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (fm_low_ops.bi.msget(ms) == fm_false)
		ret = -FM_EPARA;

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

/*
 * Force set to stero/mono mode
 * @MonoStereo -- 0, auto; 1, mono
 * If success, return 0; else error code
 */
fm_s32 fm_monostereo_set(struct fm *fm, fm_s32 ms)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.msset == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.msset(ms);

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_pamd_get(struct fm *fm, fm_u16 *pamd)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.pamdget == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (pamd == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (fm_low_ops.bi.pamdget(pamd) == fm_false)
		ret = -FM_EPARA;

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_caparray_get(struct fm *fm, fm_s32 *ca)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.caparray_get == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (ca == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.caparray_get(ca);

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_em_test(struct fm *fm, fm_u16 group, fm_u16 item, fm_u32 val)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.em == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (fm_false == fm_low_ops.bi.em(group, item, val))
		ret = -FM_EPARA;

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_set_search_th(struct fm *fm, struct fm_search_threshold_t parm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.set_search_th == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;
	ret = fm_low_ops.bi.set_search_th(parm.th_type, parm.th_val, parm.reserve);

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_rds_tx(struct fm *fm, struct fm_rds_tx_parm *parm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.ri.rds_tx == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_pwr_state_get(fm) != FM_PWR_TX_ON) {
		parm->err = FM_BADSTATUS;
		ret = -FM_EPARA;
		goto out;
	}
	if (parm->other_rds_cnt > 29) {
		parm->err = FM_EPARM;
		WCN_DBG(FM_ERR | MAIN, "other_rds_cnt=%d\n", parm->other_rds_cnt);
		ret = -FM_EPARA;
		goto out;
	}

	ret = fm_low_ops.ri.rds_tx(parm->pi, parm->ps, parm->other_rds, parm->other_rds_cnt);
	if (ret) {
		WCN_DBG(FM_ERR | MAIN, "Rds_Tx failed!\n");
		goto out;
	}
/* fm_cxt->txcxt.rdsTxOn = true; */
/* fm_cxt->txcxt.pi = parm->pi; */
/* memcpy(fm_cxt->txcxt.ps, parm->ps,sizeof(parm->ps)); */
/* memcpy(fm_cxt->txcxt.other_rds, parm->other_rds,sizeof(parm->other_rds)); */
/* fm_cxt->txcxt.other_rds_cnt = parm->other_rds_cnt; */
out:
	return ret;
}

fm_s32 fm_rds_onoff(struct fm *fm, fm_u16 rdson_off)
{
	fm_s32 ret = 0;

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON) {
		ret = -EPERM;
		goto out;
	}
	if (fm_low_ops.ri.rds_onoff == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (rdson_off) {
		fm->rds_on = fm_true;
		if (fm_low_ops.ri.rds_onoff(fm->pstRDSData, fm_true) == fm_false) {
			WCN_DBG(FM_ALT | MAIN, "FM_IOCTL_RDS_ONOFF on faield\n");
			ret = -EPERM;
			goto out;
		}

		fm_enable_rds_BlerCheck(fm);
	} else {
		fm->rds_on = fm_false;
		fm_disable_rds_BlerCheck();
		if (fm_low_ops.ri.rds_onoff(fm->pstRDSData, fm_false) == fm_false) {
			WCN_DBG(FM_ALT | MAIN, "FM_IOCTL_RDS_ONOFF off faield\n");
			ret = -EPERM;
		};
	}

out:
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_rds_good_bc_get(struct fm *fm, fm_u16 *gbc)
{
	fm_s32 ret = 0;

	if (fm_low_ops.ri.rds_gbc_get == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (gbc == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	*gbc = fm_low_ops.ri.rds_gbc_get();

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_rds_bad_bc_get(struct fm *fm, fm_u16 *bbc)
{
	fm_s32 ret = 0;

	if (fm_low_ops.ri.rds_gbc_get == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (bbc == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	*bbc = fm_low_ops.ri.rds_bbc_get();

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_rds_bler_ratio_get(struct fm *fm, fm_u16 *bbr)
{
	fm_s32 ret = 0;

	if (fm_low_ops.ri.rds_bbr_get == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (bbr == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	*bbr = (fm_u16) fm_low_ops.ri.rds_bbr_get();

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_rds_group_cnt_get(struct fm *fm, struct rds_group_cnt_t *dst)
{
	fm_s32 ret = 0;

	if (fm_low_ops.ri.rds_gc_get == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (dst == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_rds_cnt))
		return -FM_ELOCK;

	ret = fm_low_ops.ri.rds_gc_get(dst, fm->pstRDSData);

	FM_UNLOCK(fm_rds_cnt);
	return ret;
}

fm_s32 fm_rds_group_cnt_reset(struct fm *fm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.ri.rds_gc_reset == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_rds_cnt))
		return -FM_ELOCK;

	ret = fm_low_ops.ri.rds_gc_reset(fm->pstRDSData);

	FM_UNLOCK(fm_rds_cnt);
	return ret;
}

fm_s32 fm_rds_log_get(struct fm *fm, struct rds_rx_t *dst, fm_s32 *dst_len)
{
	fm_s32 ret = 0;

	if (fm_low_ops.ri.rds_log_get == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (dst == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (dst_len == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_read_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.ri.rds_log_get(dst, dst_len);

	FM_UNLOCK(fm_read_lock);
	return ret;
}

fm_s32 fm_rds_block_cnt_reset(struct fm *fm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.ri.rds_bc_reset == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.ri.rds_bc_reset();

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_i2s_set(struct fm *fm, fm_s32 onoff, fm_s32 mode, fm_s32 sample)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.i2s_set == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if ((onoff != 0) || (onoff != 1))
		onoff = 0;	/* default on. */

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if ((FM_PWR_RX_ON == fm_pwr_state_get(fm)) || (FM_PWR_TX_ON == fm_pwr_state_get(fm)))
		ret = fm_low_ops.bi.i2s_set(onoff, mode, sample);
	if (ret)
		WCN_DBG(FM_ALT | MAIN, "i2s setting Failed\n");
	else
		WCN_DBG(FM_DBG | MAIN, "i2s setting OK!\n");

	FM_UNLOCK(fm_ops_lock);
	return ret;
}

/*
 *  fm_tune_tx
 */
fm_s32 fm_tune_tx(struct fm *fm, struct fm_tune_parm *parm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.tune_tx == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (fm_pwr_state_get(fm) != FM_PWR_TX_ON) {
		parm->err = FM_BADSTATUS;
		return -EPERM;
	}
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	WCN_DBG(FM_DBG | MAIN, "%s\n", __func__);

	fm_op_state_set(fm, FM_STA_TUNE);
	WCN_DBG(FM_NTC | MAIN, "Tx tune to %d\n", parm->freq);
	/* tune to desired channel */
	if (fm_true != fm_low_ops.bi.tune_tx(parm->freq)) {
		parm->err = FM_TUNE_FAILED;
		WCN_DBG(FM_ALT | MAIN, "Tx tune failed\n");
		ret = -EPERM;
	}
	fm_op_state_set(fm, FM_STA_PLAY);
	FM_UNLOCK(fm_ops_lock);

	return ret;
}

/*
 *  fm_tune
 */
fm_s32 fm_tune(struct fm *fm, struct fm_tune_parm *parm)
{
	fm_s32 ret = 0;
	fm_s32 len;
	struct rds_raw_t rds_log;

	if (fm_low_ops.bi.mute == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.rampdown == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.bi.setfreq == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	WCN_DBG(FM_DBG | MAIN, "%s\n", __func__);

	/* clean RDS first in case RDS event report before tune success */
	/* clean RDS data */
	fm_memset(fm->pstRDSData, 0, sizeof(rds_t));

	/* clean RDS log buffer */
	do {
		ret = fm_rds_log_get(fm, (struct rds_rx_t *)&(rds_log.data), &len);
		rds_log.dirty = TRUE;
		rds_log.len = (len < sizeof(rds_log.data)) ? len : sizeof(rds_log.data);
		WCN_DBG(FM_ALT | MAIN, "clean rds log, rds_log.len =%d\n", rds_log.len);
		if (ret < 0)
			break;
	} while (rds_log.len > 0);

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON) {
		parm->err = FM_BADSTATUS;
		ret = -EPERM;
		goto out;
	}
/* fm_low_ops.bi.mute(fm_true); */
	ret = fm_low_ops.bi.rampdown();
	if (ret) {
		WCN_DBG(FM_ALT | MAIN, "FM ramp down failed\n");
		goto out;
	}


#if 0				/* (!defined(MT6620_FM)&&!defined(MT6628_FM)) */
	/* HILO side adjust if need */
	if (priv_adv.priv_tbl.hl_dese) {
		ret = priv_adv.priv_tbl.hl_dese(parm->freq, NULL);
		if (ret < 0)
			goto out;

		WCN_DBG(FM_INF | MAIN, "HILO side %d\n", ret);
	}
	/* Frequency avoid adjust if need */
	if (priv_adv.priv_tbl.fa_dese) {
		ret = priv_adv.priv_tbl.fa_dese(parm->freq, NULL);
		if (ret < 0)
			goto out;

		WCN_DBG(FM_INF | MAIN, "FA %d\n", ret);
	}
	/* MCU clock adjust if need */
	if (priv_adv.priv_tbl.mcu_dese) {
		ret = priv_adv.priv_tbl.mcu_dese(parm->freq, NULL);
		if (ret < 0)
			goto out;

		WCN_DBG(FM_INF | MAIN, "MCU %d\n", ret);
	}
	/* GPS clock adjust if need */
	if (priv_adv.priv_tbl.gps_dese) {
		ret = priv_adv.priv_tbl.gps_dese(parm->freq, NULL);
		if (ret < 0)
			goto out;

		WCN_DBG(FM_INF | MAIN, "GPS %d\n", ret);
	}
#endif
	fm_op_state_set(fm, FM_STA_TUNE);
	WCN_DBG(FM_ALT | MAIN, "tuning to %d\n", parm->freq);

	if (fm_true != fm_low_ops.bi.setfreq(parm->freq)) {
		parm->err = FM_TUNE_FAILED;
		WCN_DBG(FM_ALT | MAIN, "FM tune failed\n");
		ret = -FM_EFW;
	}
	/* fm_low_ops.bi.mute(fm_false);//open for dbg */
	fm_op_state_set(fm, FM_STA_PLAY);
out:
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

/* cqi log tool entry */
fm_s32 fm_cqi_log(void)
{
	fm_s32 ret = 0;
	fm_u16 freq;

	if (fm_low_ops.bi.cqi_log == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	freq = fm_cur_freq_get();
	if (0 == fm_get_channel_space(freq))
		freq *= 10;

	if ((freq != 10000) && (0xffffffff != g_dbg_level))
		return -FM_EPARA;

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.cqi_log(8750, 10800, 2, 5);
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_pre_search(struct fm *fm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.pre_search == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON)
		return -FM_EPARA;

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.pre_search();
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_restore_search(struct fm *fm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.restore_search == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON)
		return -FM_EPARA;

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.restore_search();
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

/*fm soft mute tune function*/
fm_s32 fm_soft_mute_tune(struct fm *fm, struct fm_softmute_tune_t *parm)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.softmute_tune == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON) {
		parm->valid = fm_false;
		ret = -EPERM;
		goto out;
	}
	/* fm_low_ops.bi.mute(fm_true); */
	/* fm_op_state_set(fm, FM_STA_TUNE); */

	if (fm_false == fm_low_ops.bi.softmute_tune(parm->freq, &parm->rssi, &parm->valid)) {
		parm->valid = fm_false;
		WCN_DBG(FM_ALT | MAIN, "sm tune failed\n");
		ret = -EPERM;
	}
/* fm_low_ops.bi.mute(fm_false); */
out:
	FM_UNLOCK(fm_ops_lock);

	return ret;
}

fm_s32 fm_over_bt(struct fm *fm, fm_s32 flag)
{
	fm_s32 ret = 0;

	if (fm_low_ops.bi.fm_via_bt == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (fm_pwr_state_get(fm) != FM_PWR_RX_ON)
		return -EPERM;

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	ret = fm_low_ops.bi.fm_via_bt(flag);
	if (ret)
		WCN_DBG(FM_ALT | MAIN, "%s(),failed!\n", __func__);
	else
		fm->via_bt = flag;

	WCN_DBG(FM_NTC | MAIN, "%s(),[ret=%d]!\n", __func__, ret);
	FM_UNLOCK(fm_ops_lock);
	return ret;
}

fm_s32 fm_tx_support(struct fm *fm, fm_s32 *support)
{
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (fm_low_ops.bi.tx_support)
		fm_low_ops.bi.tx_support(support);
	else
		*support = 0;

	WCN_DBG(FM_NTC | MAIN, "%s(),[%d]!\n", __func__, *support);
	FM_UNLOCK(fm_ops_lock);
	return 0;
}

fm_s32 fm_rdstx_support(struct fm *fm, fm_s32 *support)
{
	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;

	if (fm_low_ops.ri.rdstx_support)
		fm_low_ops.ri.rdstx_support(support);
	else
		*support = 0;

	WCN_DBG(FM_NTC | MAIN, "support=[%d]!\n", *support);
	FM_UNLOCK(fm_ops_lock);
	return 0;
}

/*1:on,0:off*/
fm_s32 fm_rdstx_enable(struct fm *fm, fm_s32 enable)
{
	fm_s32 ret = -1;

	if (fm_low_ops.ri.rds_tx_enable == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (fm_low_ops.ri.rds_tx_disable == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (fm_pwr_state_get(fm) != FM_PWR_TX_ON)
		return -FM_EPARA;

	if (FM_LOCK(fm_ops_lock))
		return -FM_ELOCK;
	if (enable == 1) {
		ret = fm_low_ops.ri.rds_tx_enable();
		if (ret)
			FM_LOG_ERR(MAIN, "rds_tx_enable fail=[%d]!\n", ret);

		fm->rdstx_on = fm_true;
	} else {
		ret = fm_low_ops.ri.rds_tx_disable();
		if (ret)
			FM_LOG_ERR(MAIN, "rds_tx_disable fail=[%d]!\n", ret);

		fm->rdstx_on = fm_false;
	}
	FM_LOG_NTC(MAIN, "rds tx enable=[%d]!\n", enable);
	FM_UNLOCK(fm_ops_lock);
	return 0;
}

static void fm_timer_func(unsigned long data)
{
	struct fm *fm = g_fm_struct;

	if (FM_LOCK(fm_timer_lock))
		return;

	if (fm_timer_sys->update(fm_timer_sys)) {
		WCN_DBG(FM_NTC | MAIN, "timer skip\n");
		goto out;	/* fm timer is stopped before timeout */
	}

	if (fm != NULL) {
		WCN_DBG(FM_NTC | MAIN, "timer:rds_wk\n");
		fm->timer_wkthd->add_work(fm->timer_wkthd, fm->rds_wk);
	}

out:
	FM_UNLOCK(fm_timer_lock);
}

#ifdef MT6620_FM
static void fmtx_timer_func(unsigned long data)
{
	struct fm *fm = g_fm_struct;
	fm_s32 vco_cycle = 1;

	if (FM_LOCK(fm_timer_lock))
		return;

	fm_timer_sys->count++;
	if (fm != NULL) {
		/* schedule tx pwr ctrl work if need */
		if (fm->txpwrctl < 1) {
			WCN_DBG(FM_WAR | MAIN, "tx power ctl time err\n");
			fm->txpwrctl = FM_TX_PWR_CTRL_INVAL_MIN;
		}
		if ((fm_timer_sys->tx_pwr_ctrl_en == FM_TX_PWR_CTRL_ENABLE)
		    && (fm_timer_sys->count % fm->txpwrctl == 0)) {
			WCN_DBG(FM_NTC | MAIN, "Tx timer:fm_tx_power_ctrl_work\n");
			fm->timer_wkthd->add_work(fm->timer_wkthd, fm->fm_tx_power_ctrl_work);
		}
		/*
		   //schedule tx RTC ctrl work if need
		   if((timer->tx_rtc_ctrl_en == FM_TX_RTC_CTRL_ENABLE)&& (timer->count%FM_TX_RTC_CTRL_INTERVAL == 0)){
		   FM_LOG_DBG(D_TIMER,"fm_tx_rtc_ctrl_work, ticks:%d\n", jiffies_to_msecs(jiffies));
		   queue_work(fm->fm_timer_workqueue, &fm->fm_tx_rtc_ctrl_work);
		   } */
		/* schedule tx desense with wifi/bt work if need */
		if (fm->vcooff < 1) {
			WCN_DBG(FM_WAR | MAIN, "tx vco tracking time err\n");
			fm->vcooff = FM_TX_VCO_OFF_MIN;
		}
		vco_cycle = fm->vcooff + fm->vcoon / 1000;
		if ((fm_timer_sys->tx_desense_en == FM_TX_DESENSE_ENABLE)
		    && (fm_timer_sys->count % vco_cycle == 0)) {
			WCN_DBG(FM_NTC | MAIN, "Tx timer:fm_tx_desense_wifi_work\n");
			fm->timer_wkthd->add_work(fm->timer_wkthd, fm->fm_tx_desense_wifi_work);
		}
	}
	if (fm_timer_sys->update(fm_timer_sys)) {
		WCN_DBG(FM_NTC | MAIN, "timer skip\n");
		goto out;	/* fm timer is stopped before timeout */
	}

out:
	FM_UNLOCK(fm_timer_lock);
}
#endif
static void fm_tx_power_ctrl_worker_func(unsigned long data)
{
	fm_s32 ctrl = 0, ret = 0;
	struct fm *fm = g_fm_struct;

	WCN_DBG(FM_NTC | MAIN, "+%s():\n", __func__);

	if (fm_low_ops.bi.tx_pwr_ctrl == NULL)
		return;
	if (FM_LOCK(fm_rxtx_lock))
		return;

	if (fm_pwr_state_get(fm) != FM_PWR_TX_ON) {
		WCN_DBG(FM_ERR | MAIN, "FM is not on TX mode\n");
		goto out;
	}

	ctrl = fm->tx_pwr;
	WCN_DBG(FM_NTC | MAIN, "tx pwr %ddb\n", ctrl);
	ret = fm_low_ops.bi.tx_pwr_ctrl(fm_cur_freq_get(), &ctrl);
	if (ret)
		WCN_DBG(FM_ERR | MAIN, "tx_pwr_ctrl fail\n");

out:
	FM_UNLOCK(fm_rxtx_lock);
	WCN_DBG(FM_NTC | MAIN, "-%s()\n", __func__);
}

static void fm_tx_rtc_ctrl_worker_func(unsigned long data)
{
	fm_s32 ret = 0;
	fm_s32 ctrl = 0;
	struct fm_gps_rtc_info rtcInfo;
	/* struct timeval curTime; */
	/* struct fm *fm = (struct fm*)fm_cb; */
	unsigned long curTime = 0;

	WCN_DBG(FM_NTC | MAIN, "+%s():\n", __func__);

	if (FM_LOCK(fm_rtc_mutex))
		return;

	if (gps_rtc_info.flag == FM_GPS_RTC_INFO_NEW) {
		memcpy(&rtcInfo, &gps_rtc_info, sizeof(struct fm_gps_rtc_info));
		gps_rtc_info.flag = FM_GPS_RTC_INFO_OLD;
		FM_UNLOCK(fm_rtc_mutex);
	} else {
		WCN_DBG(FM_NTC | MAIN, "there's no new rtc drift info\n");
		FM_UNLOCK(fm_rtc_mutex);
		goto out;
	}

	if (rtcInfo.age > rtcInfo.ageThd) {
		WCN_DBG(FM_WAR | MAIN, "age over it's threshlod\n");
		goto out;
	}
	if ((rtcInfo.drift <= rtcInfo.driftThd) && (rtcInfo.drift >= -rtcInfo.driftThd)) {
		WCN_DBG(FM_WAR | MAIN, "drift over it's MIN threshlod\n");
		goto out;
	}

	if (rtcInfo.drift > FM_GPS_RTC_DRIFT_MAX) {
		WCN_DBG(FM_WAR | MAIN, "drift over it's +MAX threshlod\n");
		rtcInfo.drift = FM_GPS_RTC_DRIFT_MAX;
		goto out;
	} else if (rtcInfo.drift < -FM_GPS_RTC_DRIFT_MAX) {
		WCN_DBG(FM_WAR | MAIN, "drift over it's -MAX threshlod\n");
		rtcInfo.drift = -FM_GPS_RTC_DRIFT_MAX;
		goto out;
	}
	/*
	   //get current time
	   do_gettimeofday(&curTime);
	   if((curTime.tv_sec - rtcInfo.tv.tv_sec) > rtcInfo.tvThd.tv_sec){
	   FM_LOG_WAR(D_MAIN,"time diff over it's threshlod\n");
	   goto out;
	   } */
	curTime = jiffies;
	if (((long)curTime - (long)rtcInfo.stamp) / HZ > rtcInfo.tvThd.tv_sec) {
		WCN_DBG(FM_WAR | MAIN, "time diff over it's threshlod\n");
		goto out;
	}
	if (fm_low_ops.bi.rtc_drift_ctrl != NULL) {
		ctrl = rtcInfo.drift;
		WCN_DBG(FM_NTC | MAIN, "RTC_drift_ctrl[0x%08x]\n", ctrl);

		ret = fm_low_ops.bi.rtc_drift_ctrl(fm_cur_freq_get(), &ctrl);
		if (ret)
			goto out;
	}
out:
	WCN_DBG(FM_NTC | MAIN, "-%s()\n", __func__);
}

static void fm_tx_desense_wifi_worker_func(unsigned long data)
{
	fm_s32 ret = 0;
	fm_s32 ctrl = 0;
	struct fm *fm = g_fm_struct;

	WCN_DBG(FM_NTC | MAIN, "+%s():\n", __func__);

	if (FM_LOCK(fm_rxtx_lock))
		return;

	if (fm_pwr_state_get(fm) != FM_PWR_TX_ON) {
		WCN_DBG(FM_ERR | MAIN, "FM is not on TX mode\n");
		goto out;
	}

	fm_tx_rtc_ctrl_worker_func(0);

	ctrl = fm->vcoon;
	if (fm_low_ops.bi.tx_desense_wifi) {
		WCN_DBG(FM_NTC | MAIN, "tx_desense_wifi[%d]\n", ctrl);
		ret = fm_low_ops.bi.tx_desense_wifi(fm_cur_freq_get(), &ctrl);
		if (ret)
			WCN_DBG(FM_ERR | MAIN, "tx_desense_wifi fail\n");
	}
out:
	FM_UNLOCK(fm_rxtx_lock);
	WCN_DBG(FM_NTC | MAIN, "-%s()\n", __func__);
}

/*
************************************************************************************
Function:         fm_get_gps_rtc_info()

Description:     get GPS RTC drift info, and this function should not block

Date:              2011/04/10

Return Value:   success:0, failed: error coe
************************************************************************************
*/
fm_s32 fm_get_gps_rtc_info(struct fm_gps_rtc_info *src)
{
	fm_s32 ret = 0;
/* fm_s32 retry_cnt = 0; */
	struct fm_gps_rtc_info *dst = &gps_rtc_info;

	if (src == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}
	if (dst == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	if (src->retryCnt > 0) {
		dst->retryCnt = src->retryCnt;
		WCN_DBG(FM_NTC | MAIN, "%s, new [retryCnt=%d]\n", __func__, dst->retryCnt);
	}
	if (src->ageThd > 0) {
		dst->ageThd = src->ageThd;
		WCN_DBG(FM_NTC | MAIN, "%s, new [ageThd=%d]\n", __func__, dst->ageThd);
	}
	if (src->driftThd > 0) {
		dst->driftThd = src->driftThd;
		WCN_DBG(FM_NTC | MAIN, "%s, new [driftThd=%d]\n", __func__, dst->driftThd);
	}
	if (src->tvThd.tv_sec > 0) {
		dst->tvThd.tv_sec = src->tvThd.tv_sec;
		WCN_DBG(FM_NTC | MAIN, "%s, new [tvThd=%d]\n", __func__, (fm_s32) dst->tvThd.tv_sec);
	}
	ret = fm_rtc_mutex->trylock(fm_rtc_mutex, dst->retryCnt);
	if (ret)
		goto out;

	dst->age = src->age;
	dst->drift = src->drift;
	dst->stamp = jiffies;	/* get curren time stamp */
	dst->flag = FM_GPS_RTC_INFO_NEW;

	FM_UNLOCK(fm_rtc_mutex);

	/*
	   //send event to info fm_tx_rtc_ctrl_work
	   if(timer_sys.tx_rtc_ctrl_en == FM_TX_RTC_CTRL_ENABLE){
	   FM_LOG_DBG(D_TIMER,"fm_tx_rtc_ctrl_work, ticks:%d\n", jiffies_to_msecs(jiffies));
	   queue_work(fm->fm_timer_workqueue, &fm->fm_tx_rtc_ctrl_work);
	   }
	 */

out:
	return ret;
}

static void fm_enable_rds_BlerCheck(struct fm *fm)
{
	if (FM_LOCK(fm_timer_lock))
		return;
	fm_timer_sys->start(fm_timer_sys);
	FM_UNLOCK(fm_timer_lock);
	FM_LOG_NTC(MAIN, "enable rds timer ok\n");
}

static void fm_disable_rds_BlerCheck(void)
{
	if (FM_LOCK(fm_timer_lock))
		return;
	fm_timer_sys->stop(fm_timer_sys);
	FM_UNLOCK(fm_timer_lock);
	FM_LOG_NTC(MAIN, "stop rds timer ok\n");
}

void fm_rds_reset_work_func(unsigned long data)
{
	fm_s32 ret = 0;

	if (!fm_low_ops.ri.rds_blercheck)
		return;

	if (FM_LOCK(fm_rxtx_lock))
		return;

	if (FM_LOCK(fm_rds_cnt))
		return;

	ret = fm_low_ops.ri.rds_blercheck(g_fm_struct->pstRDSData);

	WCN_DBG(FM_NTC | MAIN, "Addr_Cnt=%x\n", g_fm_struct->pstRDSData->AF_Data.Addr_Cnt);
	/* check af list get,can't use event==af_list because event will clear after read rds every time */
	if (g_fm_struct->pstRDSData->AF_Data.Addr_Cnt == 0xFF)
		g_fm_struct->pstRDSData->event_status |= RDS_EVENT_AF;

	if (!ret && g_fm_struct->pstRDSData->event_status)
		FM_EVENT_SEND(g_fm_struct->rds_event, FM_RDS_DATA_READY);

	WCN_DBG(FM_NTC | MAIN, "rds event check=%x\n", g_fm_struct->pstRDSData->event_status);
	FM_UNLOCK(fm_rds_cnt);
	FM_UNLOCK(fm_rxtx_lock);
}

void fm_subsys_reset_work_func(unsigned long data)
{
	g_dbg_level = 0xffffffff;
	if (FM_LOCK(fm_ops_lock))
		return;

	fm_sys_state_set(g_fm_struct, FM_SUBSYS_RST_START);

	if (g_fm_struct->chipon == fm_false) {
		WCN_DBG(FM_ALT | MAIN, "chip off no need do recover\n");
		goto out;
	}

	/* if whole chip reset, wmt will clear fm-on-flag, and firmware turn fm to off status,
	so no need turn fm off again */
	if (g_fm_struct->wholechiprst == fm_false) {
		fm_low_ops.bi.pwrdownseq();
		/* subsystem power off */
		if (fm_low_ops.bi.pwroff(0)) {
			WCN_DBG(FM_ALT | MAIN, "chip off fail\n");
			goto out;
		}
	}

	/* prepare to reset */

	/* wait 3s */
	/* fm_low_ops.bi.msdelay(2000); */

	/* subsystem power on */
	if (fm_low_ops.bi.pwron(0)) {
		WCN_DBG(FM_ALT | MAIN, "chip on fail\n");
		goto out;
	}
	/* recover context */
	if (g_fm_struct->chipon == fm_false) {
		fm_low_ops.bi.pwroff(0);
		WCN_DBG(FM_ALT | MAIN, "no need do recover\n");
		goto out;
	}

	if (FM_PWR_RX_ON == fm_pwr_state_get(g_fm_struct)) {
		fm_low_ops.bi.pwrupseq(&g_fm_struct->chip_id, &g_fm_struct->device_id);
	} else {
		WCN_DBG(FM_ALT | MAIN, "no need do re-powerup\n");
		goto out;
	}

	fm_low_ops.bi.anaswitch(g_fm_struct->ana_type);

	fm_low_ops.bi.setfreq(fm_cur_freq_get());

	fm_low_ops.bi.volset((fm_u8) g_fm_struct->vol);

	g_fm_struct->mute = 0;
	fm_low_ops.bi.mute(g_fm_struct->mute);

	if (fm_low_ops.ri.rds_bci_get) {
		fm_timer_sys->init(fm_timer_sys, fm_timer_func, (unsigned long)g_fm_struct, fm_low_ops.ri.rds_bci_get(),
				   0);
		WCN_DBG(FM_NTC | MAIN, "initial timer ok\n");
	} else {
		WCN_DBG(FM_NTC | MAIN, "initial timer fail!!!\n");
	}

	g_fm_struct->rds_on = 1;
	fm_low_ops.ri.rds_onoff(g_fm_struct->pstRDSData, g_fm_struct->rds_on);

	WCN_DBG(FM_ALT | MAIN, "recover done\n");

out:
	fm_sys_state_set(g_fm_struct, FM_SUBSYS_RST_END);
	fm_sys_state_set(g_fm_struct, FM_SUBSYS_RST_OFF);
	g_fm_struct->wholechiprst = fm_true;

	FM_UNLOCK(fm_ops_lock);
	g_dbg_level = 0xfffffff5;
}

static void fm_eint_handler(void)
{
	struct fm *fm = g_fm_struct;

	WCN_DBG(FM_DBG | MAIN, "intr occur, ticks:%d\n", jiffies_to_msecs(jiffies));

	if (fm != NULL)
		fm->eint_wkthd->add_work(fm->eint_wkthd, fm->eint_wk);
}

static fm_s32 fm_rds_parser(struct rds_rx_t *rds_raw, fm_s32 rds_size)
{
	struct fm *fm = g_fm_struct;	/* (struct fm *)work->data; */
	rds_t *pstRDSData = fm->pstRDSData;

	if (FM_LOCK(fm_read_lock))
		return -FM_ELOCK;
	/* parsing RDS data */
	fm_low_ops.ri.rds_parser(pstRDSData, rds_raw, rds_size, fm_cur_freq_get);
	FM_UNLOCK(fm_read_lock);

	if ((pstRDSData->event_status != 0x0000) && (pstRDSData->event_status != RDS_EVENT_AF_LIST)) {
		WCN_DBG(FM_NTC | MAIN, "Notify user to read, [event:0x%04x]\n", pstRDSData->event_status);
		FM_EVENT_SEND(fm->rds_event, FM_RDS_DATA_READY);
	}

	return 0;
}

static void fm_eint_work_func(unsigned long data)
{
	fm_event_parser(fm_rds_parser);
	/* re-enable eint if need */
	fm_enable_eint();
}

static fm_s32 fm_callback_register(struct fm_lowlevel_ops *ops)
{
	if (ops == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	ops->cb.cur_freq_get = fm_cur_freq_get;
	ops->cb.cur_freq_set = fm_cur_freq_set;
	return 0;
}

static fm_s32 fm_callback_unregister(struct fm_lowlevel_ops *ops)
{
	if (ops == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	fm_memset(&ops->cb, 0, sizeof(struct fm_callback));
	return 0;
}

static fm_s32 fm_para_init(struct fm *fmp)
{
	if (fmp == NULL) {
		pr_err("%s,invalid pointer\n", __func__);
		return -FM_EPARA;
	}

	fmp->band = FM_BAND_SPECIAL;
	fmp->min_freq = FM_RX_BAND_FREQ_L;
	fmp->max_freq = FM_RX_BAND_FREQ_H;
	fmp->cur_freq = 0;

	return 0;
}

fm_s32 fm_cust_config_setup(fm_s8 *filename)
{
	fm_s32 ret;
#if (defined(MT6620_FM) || defined(MT6628_FM) || defined(MT6627_FM) || defined(MT6630_FM) || defined(MT6580_FM))
#ifdef MT6628_FM
	ret = MT6628fm_cust_config_setup(filename);
	if (ret < 0)
		WCN_DBG(FM_ERR | MAIN, "MT6628fm_cust_config_setup failed\n");
#endif
#ifdef MT6620_FM
	ret = MT6620fm_cust_config_setup(filename);
	if (ret < 0)
		WCN_DBG(FM_ERR | MAIN, "MT6620fm_cust_config_setup failed\n");
#endif
#ifdef MT6627_FM
	ret = MT6627fm_cust_config_setup(filename);
	if (ret < 0)
		WCN_DBG(FM_ERR | MAIN, "MT6627fm_cust_config_setup failed\n");
#endif
#ifdef MT6580_FM
	ret = MT6580fm_cust_config_setup(filename);
	if (ret < 0)
		WCN_DBG(FM_ERR | MAIN, "MT6580fm_cust_config_setup failed\n");
#endif
#ifdef MT6630_FM
	ret = MT6630fm_cust_config_setup(filename);
	if (ret < 0)
		WCN_DBG(FM_ERR | MAIN, "MT6630fm_cust_config_setup failed\n");
#endif
#else
	ret = fm_cust_config(filename);
	if (ret < 0)
		WCN_DBG(FM_ERR | MAIN, "fm_cust_config failed\n");
#endif
	return ret;
}

struct fm *fm_dev_init(fm_u32 arg)
{
	fm_s32 ret = 0;
	struct fm *fm = NULL;

/* if (!fm_low_ops.ri.rds_bci_get) */
/* return NULL; */

/* if (!fm_low_ops.bi.chipid_get) */
/* return NULL; */

	/* alloc fm main data structure */
	fm = fm_zalloc(sizeof(struct fm));
	if (!fm) {
		WCN_DBG(FM_ALT | MAIN, "-ENOMEM\n");
		ret = -ENOMEM;
		return NULL;
	}

	fm->ref = 0;
	fm->chipon = fm_false;
	fm_pwr_state_set(fm, FM_PWR_OFF);
/* fm->chip_id = fm_low_ops.bi.chipid_get(); */
	/* FM Tx */
	fm->vcoon = FM_TX_VCO_ON_DEFAULT;
	fm->vcooff = FM_TX_VCO_OFF_DEFAULT;
	fm->txpwrctl = FM_TX_PWR_CTRL_INVAL_DEFAULT;
	fm->tx_pwr = FM_TX_PWR_LEVEL_MAX;
	fm->wholechiprst = fm_true;
	gps_rtc_info.err = 0;
	gps_rtc_info.age = 0;
	gps_rtc_info.drift = 0;
	gps_rtc_info.tv.tv_sec = 0;
	gps_rtc_info.tv.tv_usec = 0;
	gps_rtc_info.ageThd = FM_GPS_RTC_AGE_TH;
	gps_rtc_info.driftThd = FM_GPS_RTC_DRIFT_TH;
	gps_rtc_info.tvThd.tv_sec = FM_GPS_RTC_TIME_DIFF_TH;
	gps_rtc_info.retryCnt = FM_GPS_RTC_RETRY_CNT;
	gps_rtc_info.flag = FM_GPS_RTC_INFO_OLD;

	fm->rds_event = fm_flag_event_create("fm_rds_event");
	if (!fm->rds_event) {
		WCN_DBG(FM_ALT | MAIN, "-ENOMEM for RDS event\n");
		ret = -ENOMEM;
		goto ERR_EXIT;
	}

	fm_flag_event_get(fm->rds_event);

	/* alloc fm rds data structure */
	fm->pstRDSData = fm_zalloc(sizeof(rds_t));
	if (!fm->pstRDSData) {
		WCN_DBG(FM_ALT | MAIN, "-ENOMEM for RDS\n");
		ret = -ENOMEM;
		goto ERR_EXIT;
	}

	g_fm_struct = fm;

	fm->timer_wkthd = fm_workthread_create("fm_timer_wq");

	if (!fm->timer_wkthd) {
		WCN_DBG(FM_ALT | MAIN, "-ENOMEM for fm_timer_wq\n");
		ret = -ENOMEM;
		goto ERR_EXIT;
	}

	fm_workthread_get(fm->timer_wkthd);

	fm->eint_wkthd = fm_workthread_create("fm_eint_wq");

	if (!fm->eint_wkthd) {
		WCN_DBG(FM_ALT | MAIN, "-ENOMEM for fm_eint_wq\n");
		ret = -ENOMEM;
		goto ERR_EXIT;
	}

	fm_workthread_get(fm->eint_wkthd);

	fm->eint_wk = fm_work_create("fm_eint_work");

	if (!fm->eint_wk) {
		WCN_DBG(FM_ALT | MAIN, "-ENOMEM for eint_wk\n");
		ret = -ENOMEM;
		goto ERR_EXIT;
	} else {
		fm_work_get(fm->eint_wk);
		fm->eint_wk->init(fm->eint_wk, fm_eint_work_func, (unsigned long)fm);
	}

	/* create reset work */
	fm->rst_wk = fm_work_create("fm_rst_work");

	if (!fm->rst_wk) {
		WCN_DBG(FM_ALT | MAIN, "-ENOMEM for rst_wk\n");
		ret = -ENOMEM;
		goto ERR_EXIT;
	} else {
		fm_work_get(fm->rst_wk);
		fm->rst_wk->init(fm->rst_wk, fm_subsys_reset_work_func, (unsigned long)fm);
	}

	fm->rds_wk = fm_work_create("fm_rds_work");
	if (!fm->rds_wk) {
		WCN_DBG(FM_ALT | MAIN, "-ENOMEM for rds_wk\n");
		ret = -ENOMEM;
		goto ERR_EXIT;
	} else {
		fm_work_get(fm->rds_wk);
		fm->rds_wk->init(fm->rds_wk, fm_rds_reset_work_func, (unsigned long)fm);
	}

	fm->fm_tx_power_ctrl_work = fm_work_create("tx_pwr_ctl_work");
	if (!fm->fm_tx_power_ctrl_work) {
		WCN_DBG(FM_ALT | MAIN, "-ENOMEM for tx_pwr_ctl_work\n");
		ret = -ENOMEM;
		goto ERR_EXIT;
	} else {
		fm_work_get(fm->fm_tx_power_ctrl_work);
		fm->fm_tx_power_ctrl_work->init(fm->fm_tx_power_ctrl_work,
						fm_tx_power_ctrl_worker_func, (unsigned long)fm);
	}

	fm->fm_tx_desense_wifi_work = fm_work_create("tx_desen_wifi_work");
	if (!fm->fm_tx_desense_wifi_work) {
		WCN_DBG(FM_ALT | MAIN, "-ENOMEM for tx_desen_wifi_work\n");
		ret = -ENOMEM;
		goto ERR_EXIT;
	} else {
		fm_work_get(fm->fm_tx_desense_wifi_work);
		fm->fm_tx_desense_wifi_work->init(fm->fm_tx_desense_wifi_work,
						  fm_tx_desense_wifi_worker_func, (unsigned long)fm);
	}

	/* fm timer was created in fm_env_setp() */
/* fm_timer_sys->init(fm_timer_sys, fm_timer_func, (unsigned long)g_fm_struct, fm_low_ops.ri.rds_bci_get(), 0); */
/* fm_timer_sys->start(fm_timer_sys); */

	/* init customer config parameter */
	fm_cust_config_setup(NULL);

	fm_para_init(fm);

	return g_fm_struct;

ERR_EXIT:

	if (fm->eint_wkthd) {
		ret = fm_workthread_put(fm->eint_wkthd);

		if (!ret)
			fm->eint_wkthd = NULL;
	}

	if (fm->timer_wkthd) {
		ret = fm_workthread_put(fm->timer_wkthd);

		if (!ret)
			fm->timer_wkthd = NULL;
	}

	if (fm->eint_wk) {
		ret = fm_work_put(fm->eint_wk);

		if (!ret)
			fm->eint_wk = NULL;
	}

	if (fm->rds_wk) {
		ret = fm_work_put(fm->rds_wk);

		if (!ret)
			fm->rds_wk = NULL;
	}

	if (fm->rst_wk) {
		ret = fm_work_put(fm->rst_wk);

		if (!ret)
			fm->rst_wk = NULL;
	}

	if (fm->fm_tx_desense_wifi_work) {
		ret = fm_work_put(fm->fm_tx_desense_wifi_work);

		if (!ret)
			fm->fm_tx_desense_wifi_work = NULL;
	}

	if (fm->fm_tx_power_ctrl_work) {
		ret = fm_work_put(fm->fm_tx_power_ctrl_work);

		if (!ret)
			fm->fm_tx_power_ctrl_work = NULL;
	}

	if (fm->pstRDSData) {
		fm_free(fm->pstRDSData);
		fm->pstRDSData = NULL;
	}

	fm_free(fm);
	g_fm_struct = NULL;
	return NULL;
}

fm_s32 fm_dev_destroy(struct fm *fm)
{
	fm_s32 ret = 0;

	WCN_DBG(FM_DBG | MAIN, "%s\n", __func__);

	fm_timer_sys->stop(fm_timer_sys);
	if (!fm) {
		WCN_DBG(FM_NTC | MAIN, "fm is null\n");
		return -1;
	}

	if (fm->eint_wkthd) {
		ret = fm_workthread_put(fm->eint_wkthd);

		if (!ret)
			fm->eint_wkthd = NULL;
	}

	if (fm->timer_wkthd) {
		ret = fm_workthread_put(fm->timer_wkthd);

		if (!ret)
			fm->timer_wkthd = NULL;
	}

	if (fm->eint_wk) {
		ret = fm_work_put(fm->eint_wk);

		if (!ret)
			fm->eint_wk = NULL;
	}

	if (fm->rds_wk) {
		ret = fm_work_put(fm->rds_wk);

		if (!ret)
			fm->rds_wk = NULL;
	}

	if (fm->rst_wk) {
		ret = fm_work_put(fm->rst_wk);

		if (!ret)
			fm->rst_wk = NULL;
	}

	if (fm->pstRDSData) {
		fm_free(fm->pstRDSData);
		fm->pstRDSData = NULL;
	}

	if (fm->pstRDSData) {
		fm_free(fm->pstRDSData);
		fm->pstRDSData = NULL;
	}

	fm_flag_event_put(fm->rds_event);

	/* free all memory */
	if (fm) {
		fm_free(fm);
		fm = NULL;
		g_fm_struct = NULL;
	}

	return ret;
}

fm_s32 fm_env_setup(void)
{
	fm_s32 ret = 0;

	WCN_DBG(FM_NTC | MAIN, "%s\n", __func__);
#if (defined(MT6620_FM) || defined(MT6628_FM) || defined(MT6627_FM) || defined(MT6580_FM) || defined(MT6630_FM))
#ifdef MT6620_FM
	/* register call back functions */
	ret = fm_callback_register(&MT6620fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "1. fm callback registered\n");
	/* get low level functions */
	ret = MT6620fm_low_ops_register(&MT6620fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "2. fm low ops registered\n");
	/* get rds level functions */
	ret = MT6620fm_rds_ops_register(&MT6620fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "3. fm rds ops registered\n");
#endif
#ifdef MT6628_FM
	/* register call back functions */
	ret = fm_callback_register(&MT6628fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "1. fm callback registered\n");
	/* get low level functions */
	ret = MT6628fm_low_ops_register(&MT6628fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "2. fm low ops registered\n");
	/* get rds level functions */
	ret = MT6628fm_rds_ops_register(&MT6628fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "3. fm rds ops registered\n");
#endif
#ifdef MT6627_FM
	/* register call back functions */
	ret = fm_callback_register(&MT6627fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "1. fm callback registered\n");
	/* get low level functions */
	ret = MT6627fm_low_ops_register(&MT6627fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "2. fm low ops registered\n");
	/* get rds level functions */
	ret = MT6627fm_rds_ops_register(&MT6627fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "3. fm rds ops registered\n");
#endif
#ifdef MT6580_FM
	/* register call back functions */
	ret = fm_callback_register(&MT6580fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "1. fm callback registered\n");
	/* get low level functions */
	ret = MT6580fm_low_ops_register(&MT6580fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "2. fm low ops registered\n");
	/* get rds level functions */
	ret = MT6580fm_rds_ops_register(&MT6580fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "3. fm rds ops registered\n");
#endif
#ifdef MT6630_FM
	/* register call back functions */
	ret = fm_callback_register(&MT6630fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "1. fm callback registered\n");
	/* get low level functions */
	ret = MT6630fm_low_ops_register(&MT6630fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "2. fm low ops registered\n");
	/* get rds level functions */
	ret = MT6630fm_rds_ops_register(&MT6630fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "3. fm rds ops registered\n");
#endif
#else
	/* register call back functions */
	ret = fm_callback_register(&fm_low_ops);
	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "1. fm callback registered\n");
	/* get low level functions */
	ret = fm_low_ops_register(&fm_low_ops);

	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "2. fm low ops registered\n");
	/* get rds level functions */
	ret = fm_rds_ops_register(&fm_low_ops);

	if (ret)
		return ret;

	WCN_DBG(FM_NTC | MAIN, "3. fm rds ops registered\n");
#endif

	fm_ops_lock = fm_lock_create("ops_lock");

	if (!fm_ops_lock)
		return -1;

	fm_read_lock = fm_lock_create("rds_read");

	if (!fm_read_lock)
		return -1;

	fm_rds_cnt = fm_lock_create("rds_cnt");

	if (!fm_rds_cnt)
		return -1;

	fm_timer_lock = fm_spin_lock_create("timer_lock");

	if (!fm_timer_lock)
		return -1;

	fm_rxtx_lock = fm_lock_create("rxtx_lock");
	if (!fm_rxtx_lock)
		return -1;

	fm_rtc_mutex = fm_lock_create("rxtx_lock");
	if (!fm_rxtx_lock)
		return -1;

	fm_lock_get(fm_ops_lock);
	fm_lock_get(fm_read_lock);
	fm_lock_get(fm_rds_cnt);
	fm_spin_lock_get(fm_timer_lock);
	fm_lock_get(fm_rxtx_lock);
	WCN_DBG(FM_NTC | MAIN, "4. fm locks created\n");

	fm_timer_sys = fm_timer_create("fm_sys_timer");

	if (!fm_timer_sys)
		return -1;

	fm_timer_get(fm_timer_sys);
	WCN_DBG(FM_NTC | MAIN, "5. fm timer created\n");

	ret = fm_link_setup((void *)fm_wholechip_rst_cb);

	if (ret) {
		WCN_DBG(FM_ERR | MAIN, "fm link setup Failed\n");
		return -1;
	}

	return ret;
}

fm_s32 fm_env_destroy(void)
{
	fm_s32 ret = 0;

	WCN_DBG(FM_NTC | MAIN, "%s\n", __func__);

	fm_link_release();

#if (defined(MT6620_FM) || defined(MT6628_FM) || defined(MT6627_FM) || defined(MT6580_FM) || defined(MT6630_FM))
#if defined(MT6620_FM)
	/* register call back functions */
	ret = fm_callback_unregister(&MT6620fm_low_ops);

	if (ret)
		return -1;

	/* put low level functions */
	ret = MT6620fm_low_ops_unregister(&MT6620fm_low_ops);

	if (ret)
		return -1;

	/* put rds func */
	ret = MT6620fm_rds_ops_unregister(&MT6620fm_low_ops);

	if (ret)
		return -1;
#endif
#if defined(MT6628_FM)
	/* register call back functions */
	ret = fm_callback_unregister(&MT6628fm_low_ops);

	if (ret)
		return -1;

	/* put low level functions */
	ret = MT6628fm_low_ops_unregister(&MT6628fm_low_ops);

	if (ret)
		return -1;

	/* put rds func */
	ret = MT6628fm_rds_ops_unregister(&MT6628fm_low_ops);

	if (ret)
		return -1;
#endif
#if defined(MT6627_FM)
	/* register call back functions */
	ret = fm_callback_unregister(&MT6627fm_low_ops);

	if (ret)
		return -1;

	/* put low level functions */
	ret = MT6627fm_low_ops_unregister(&MT6627fm_low_ops);

	if (ret)
		return -1;

	/* put rds func */
	ret = MT6627fm_rds_ops_unregister(&MT6627fm_low_ops);

	if (ret)
		return -1;
#endif
#if defined(MT6580_FM)
	/* register call back functions */
	ret = fm_callback_unregister(&MT6580fm_low_ops);

	if (ret)
		return -1;

	/* put low level functions */
	ret = MT6580fm_low_ops_unregister(&MT6580fm_low_ops);

	if (ret)
		return -1;

	/* put rds func */
	ret = MT6580fm_rds_ops_unregister(&MT6580fm_low_ops);

	if (ret)
		return -1;
#endif
#if defined(MT6630_FM)
	/* register call back functions */
	ret = fm_callback_unregister(&MT6630fm_low_ops);

	if (ret)
		return -1;

	/* put low level functions */
	ret = MT6630fm_low_ops_unregister(&MT6630fm_low_ops);

	if (ret)
		return -1;

	/* put rds func */
	ret = MT6630fm_rds_ops_unregister(&MT6630fm_low_ops);

	if (ret)
		return -1;
#endif
#else
	/* register call back functions */
	ret = fm_callback_unregister(&fm_low_ops);

	if (ret)
		return -1;

	/* put low level functions */
	ret = fm_low_ops_unregister(&fm_low_ops);

	if (ret)
		return -1;

	/* put rds func */
	ret = fm_rds_ops_unregister(&fm_low_ops);

	if (ret)
		return -1;
#endif
	ret = fm_lock_put(fm_ops_lock);

	if (!ret)
		fm_ops_lock = NULL;

	ret = fm_lock_put(fm_read_lock);

	if (!ret)
		fm_read_lock = NULL;

	ret = fm_lock_put(fm_rds_cnt);

	if (!ret)
		fm_rds_cnt = NULL;
	ret = fm_spin_lock_put(fm_timer_lock);

	if (!ret)
		fm_timer_lock = NULL;

	ret = fm_timer_put(fm_timer_sys);

	if (!ret)
		fm_timer_sys = NULL;

	return ret;
}

/*
 * GetChannelSpace - get the spcace of gived channel
 * @freq - value in 760~1080 or 7600~10800
 *
 * Return 0, if 760~1080; return 1, if 7600 ~ 10800, else err code < 0
 */
fm_s32 fm_get_channel_space(fm_s32 freq)
{
	if ((freq >= 640) && (freq <= 1080))
		return 0;
	else if ((freq >= 6400) && (freq <= 10800))
		return 1;
	else
		return -1;
}