/**
 * aicwf_sdmmc.c
 *
 * SDIO function declarations
 *
 * Copyright (C) AICSemi 2018-2020
 */
#include <linux/interrupt.h>
#include <linux/completion.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
#include <linux/semaphore.h>
#include <linux/debugfs.h>
#include <linux/kthread.h>
#include "aicwf_txrxif.h"
#include "aicwf_sdio.h"
#include "sdio_host.h"
#include "rwnx_defs.h"
#include "rwnx_platform.h"
#include "aicwf_rx_prealloc.h"
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
#include <linux/pm_wakeirq.h>
#endif

#ifdef CONFIG_INGENIC_T20
#include "mach/jzmmc.h"
#endif /* CONFIG_INGENIC_T20 */
#ifdef CONFIG_PLATFORM_ROCKCHIP
#include <linux/rfkill-wlan.h>
#endif
#include "aic_bsp_export.h"
extern uint8_t scanning;

#ifdef CONFIG_GPIO_WAKEUP
extern int rwnx_send_me_set_lp_level(struct rwnx_hw *rwnx_hw, u8 lp_level);

#ifdef CONFIG_WIFI_SUSPEND_FOR_LINUX
#include <linux/proc_fs.h>
void rwnx_init_wifi_suspend_node(void);
void rwnx_deinit_wifi_suspend_node(void);
void rwnx_set_wifi_suspend(char onoff);
struct proc_dir_entry *wifi_suspend_node;
#endif//CONFIG_WIFI_SUSPEND_FOR_LINUX

#endif//CONFIG_GPIO_WAKEUP

int tx_aggr_counter = 32;
module_param_named(tx_aggr_counter, tx_aggr_counter, int, 0644);


int aicwf_sdio_readb(struct aic_sdio_dev *sdiodev, uint regaddr, u8 *val)
{
	int ret;
	sdio_claim_host(sdiodev->func);
	*val = sdio_readb(sdiodev->func, regaddr, &ret);
	sdio_release_host(sdiodev->func);
	return ret;
}

int aicwf_sdio_writeb(struct aic_sdio_dev *sdiodev, uint regaddr, u8 val)
{
	int ret;
	sdio_claim_host(sdiodev->func);
	sdio_writeb(sdiodev->func, val, regaddr, &ret);
	sdio_release_host(sdiodev->func);
	return ret;
}

int aicwf_sdio_flow_ctrl_msg(struct aic_sdio_dev *sdiodev)
{
    int ret = -1;
    u8 fc_reg = 0;
    u32 count = 0;

    while (true) {
        ret = aicwf_sdio_readb(sdiodev, sdiodev->sdio_reg.flow_ctrl_reg, &fc_reg);
        if (ret) {
            return -1;
        }

        if (sdiodev->chipid == PRODUCT_ID_AIC8801 || sdiodev->chipid == PRODUCT_ID_AIC8800DC ||
            sdiodev->chipid == PRODUCT_ID_AIC8800DW) {
            fc_reg = fc_reg & SDIOWIFI_FLOWCTRL_MASK_REG;
        }

        if (fc_reg != 0) {
            ret = fc_reg;
            if(ret > tx_aggr_counter){
				ret = tx_aggr_counter;
			}
            return ret;
        } else {
            if (count >= FLOW_CTRL_RETRY_COUNT) {
                ret = -fc_reg;
                break;
            }
            count++;
            if (count < 30)
                udelay(200);
            else if(count < 40)
                msleep(2);
            else
                msleep(10);
        }
    }

    return ret;
}


int aicwf_sdio_flow_ctrl(struct aic_sdio_dev *sdiodev)
{
    int ret = -1;
    u8 fc_reg = 0;
    u32 count = 0;

    while (true) {
        ret = aicwf_sdio_readb(sdiodev, sdiodev->sdio_reg.flow_ctrl_reg, &fc_reg);
        if (ret) {
            return -1;
        }

        if (sdiodev->chipid == PRODUCT_ID_AIC8801 || sdiodev->chipid == PRODUCT_ID_AIC8800DC ||
            sdiodev->chipid == PRODUCT_ID_AIC8800DW) {
            fc_reg = fc_reg & SDIOWIFI_FLOWCTRL_MASK_REG;
        }

        if (fc_reg > DATA_FLOW_CTRL_THRESH) {
            ret = fc_reg;
            if(ret > tx_aggr_counter){
				ret = tx_aggr_counter;
			}
            return ret;
        } else {
            if (count >= FLOW_CTRL_RETRY_COUNT) {
                ret = -fc_reg;
                break;
            }
            count++;
            if (count < 30)
                udelay(200);
            else if(count < 40)
                msleep(2);
            else
                msleep(10);
        }
    }

    return ret;
}


int aicwf_sdio_send_pkt(struct aic_sdio_dev *sdiodev, u8 *buf, uint count)
{
	int ret = 0;

	sdio_claim_host(sdiodev->func);
	ret = sdio_writesb(sdiodev->func, sdiodev->sdio_reg.wr_fifo_addr, buf, count);
	sdio_release_host(sdiodev->func);

	return ret;
}

#ifdef CONFIG_PREALLOC_RX_SKB
int aicwf_sdio_recv_pkt(struct aic_sdio_dev *sdiodev, struct rx_buff *rxbuff,
	u32 size)
{
	int ret;

	if ((!rxbuff->data) || (!size)) {
		return -EINVAL;;
	}

    sdio_claim_host(sdiodev->func);
    ret = sdio_readsb(sdiodev->func, rxbuff->data, sdiodev->sdio_reg.rd_fifo_addr, size);
    sdio_release_host(sdiodev->func);

	if (ret < 0) {
		return ret;
	}
	rxbuff->len = size;

	return ret;
}
#else
int aicwf_sdio_recv_pkt(struct aic_sdio_dev *sdiodev, struct sk_buff *skbbuf,
	u32 size)
{
	int ret;

	if ((!skbbuf) || (!size)) {
		return -EINVAL;;
	}

    sdio_claim_host(sdiodev->func);
    ret = sdio_readsb(sdiodev->func, skbbuf->data, sdiodev->sdio_reg.rd_fifo_addr, size);
    sdio_release_host(sdiodev->func);

	if (ret < 0) {
		return ret;
	}
	skbbuf->len = size;

	return ret;
}
#endif


#ifdef CONFIG_GPIO_WAKEUP
static int wakeup_enable;
static u32 hostwake_irq_num;
#endif//CONFIG_GPIO_WAKEUP

#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)//LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)
//static struct wakeup_source *ws_rx_sdio;
//static struct wakeup_source *ws_sdio_pwrctrl;
//static struct wakeup_source *ws_tx_sdio;
#ifdef CONFIG_GPIO_WAKEUP
static struct wakeup_source *ws;
#endif
#else
#ifdef ANDROID_PLATFORM
#ifdef CONFIG_GPIO_WAKEUP
#include <linux/wakelock.h>
static struct wake_lock irq_wakelock;
//struct wake_lock irq_wakelock;
#endif//CONFIG_GPIO_WAKEUP
#endif//ANDROID_PLATFORM
#endif

#ifdef CONFIG_PLATFORM_ALLWINNER
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)
extern int sunxi_wlan_get_oob_irq(int *, int *);
#else
extern int sunxi_wlan_get_oob_irq(void);
extern int sunxi_wlan_get_oob_irq_flags(void);
#endif
#endif// CONFIG_PLATFORM_ALLWINNER

#if 0
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)
static struct wakeup_source *ws;
#else
#ifdef ANDROID_PLATFORM
#ifdef CONFIG_GPIO_WAKEUP
#include <linux/wakelock.h>
static struct wake_lock irq_wakelock;
#endif//CONFIG_GPIO_WAKEUP
#endif//ANDROID_PLATFORM
#endif
#endif


void rwnx_pm_stay_awake(struct aic_sdio_dev *sdiodev){

#ifdef CONFIG_GPIO_WAKEUP
	spin_lock_bh(&sdiodev->wslock);


		//printk("%s active_count:%d relax_count:%d\r\n", __func__, (int)ws->active_count, (int)ws->relax_count);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0)
		if(ws != NULL){
			__pm_stay_awake(ws);
		}
#else
#ifdef ANDROID_PLATFORM
#ifdef CONFIG_GPIO_WAKEUP
		wake_lock(&irq_wakelock);
#endif //CONFIG_GPIO_WAKEUP
#endif //ANDROID_PLATFORM
#endif

	spin_unlock_bh(&sdiodev->wslock);
#endif
}

void rwnx_pm_relax(struct aic_sdio_dev *sdiodev){

#ifdef CONFIG_GPIO_WAKEUP
	spin_lock_bh(&sdiodev->wslock);


	//printk("%s active_count:%d relax_count:%d\r\n", __func__, (int)ws->active_count, (int)ws->relax_count);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0)
	if(ws != NULL){
		__pm_relax(ws);
	}
#else
#ifdef ANDROID_PLATFORM
#ifdef CONFIG_GPIO_WAKEUP
	wake_unlock(&irq_wakelock);
#endif //CONFIG_GPIO_WAKEUP
#endif //ANDROID_PLATFORM
#endif
	spin_unlock_bh(&sdiodev->wslock);
#endif

}

#ifdef CONFIG_GPIO_WAKEUP

void rwnx_set_wifi_suspend(char onoff);


static irqreturn_t rwnx_hostwake_irq_handler(int irq, void *para)
{
	static int wake_cnt;
	wake_cnt++;

#if 1
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)
	__pm_wakeup_event(ws, HZ);
#else
#ifdef ANDROID_PLATFORM
	wake_lock_timeout(&irq_wakelock, HZ);
#endif //ANDROID_PLATFORM
#endif
#endif

	//rwnx_pm_stay_awake(g_rwnx_plat->sdiodev);

	AICWFDBG(LOGDEBUG, "%s(%d): wake_irq_cnt = %d\n", __func__, __LINE__, wake_cnt);

	return IRQ_HANDLED;
}
#endif//CONFIG_GPIO_WAKEUP

#ifdef CONFIG_GPIO_WAKEUP
static int rwnx_disable_hostwake_irq(void);
static int rwnx_enable_hostwake_irq(void);
#endif

static int rwnx_register_hostwake_irq(struct device *dev)
{
	int ret = 0;//-1;
#ifdef CONFIG_GPIO_WAKEUP
	int irq_flags;
//TODO hostwake_irq_num hostwake_irq_num and wakeup_enable

#ifdef CONFIG_PLATFORM_ALLWINNER
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0)
	hostwake_irq_num = sunxi_wlan_get_oob_irq(&irq_flags, &wakeup_enable);
#else
	hostwake_irq_num = sunxi_wlan_get_oob_irq();
	irq_flags = sunxi_wlan_get_oob_irq_flags();
	wakeup_enable = 1;
#endif
#endif //CONFIG_PLATFORM_ALLWINNER

//For Rockchip
#ifdef CONFIG_PLATFORM_ROCKCHIP
		hostwake_irq_num = rockchip_wifi_get_oob_irq();
		printk("%s hostwake_irq_num:%d \r\n", __func__, hostwake_irq_num);
		irq_flags = (IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL | IORESOURCE_IRQ_SHAREABLE) & IRQF_TRIGGER_MASK;
		printk("%s irq_flags:%d \r\n", __func__, irq_flags);
		wakeup_enable = 1;
#endif //CONFIG_PLATFORM_ROCKCHIP



	if (wakeup_enable) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)
		ws = wakeup_source_register(dev, "wifisleep");
		//ws_tx_sdio = wakeup_source_register(dev, "wifi_tx_sleep");
		//ws_rx_sdio = wakeup_source_register(dev, "wifi_rx_sleep");
		//ws_sdio_pwrctrl = wakeup_source_register(dev, "sdio_pwrctrl_sleep");
#else
		wake_lock_init(&irq_wakelock, WAKE_LOCK_SUSPEND, "wifisleep");
#endif
		ret = device_init_wakeup(dev, true);
		if (ret < 0) {
			pr_err("%s(%d): device init wakeup failed!\n", __func__, __LINE__);
			return ret;
		}

#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
		ret = dev_pm_set_wake_irq(dev, hostwake_irq_num);
#endif
		if (ret < 0) {
			pr_err("%s(%d): can't enable wakeup src!\n", __func__, __LINE__);
			goto fail1;
		}

		ret = request_irq(hostwake_irq_num,
				rwnx_hostwake_irq_handler, IRQF_TRIGGER_RISING | IRQF_NO_SUSPEND,
				"rwnx_hostwake_irq", NULL);

		if (ret < 0) {
			pr_err("%s(%d): request_irq fail! ret = %d\n", __func__, __LINE__, ret);
			goto fail2;
		}
	}
	//disable_irq(hostwake_irq_num);
	rwnx_disable_hostwake_irq();
	dev_pm_clear_wake_irq(dev);
	rwnx_enable_hostwake_irq();
	printk("%s(%d)\n", __func__, __LINE__);
	return ret;

fail2:
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
	dev_pm_clear_wake_irq(dev);
#endif
fail1:
	device_init_wakeup(dev, false);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)
	wakeup_source_unregister(ws);
	//wakeup_source_unregister(ws_tx_sdio);
	//wakeup_source_unregister(ws_rx_sdio);
	//wakeup_source_unregister(ws_sdio_pwrctrl);
#else
	wake_lock_destroy(&irq_wakelock);
#endif
#endif//CONFIG_GPIO_WAKEUP
	return ret;
}

static int rwnx_unregister_hostwake_irq(struct device *dev)
{
#ifdef CONFIG_GPIO_WAKEUP
	rwnx_disable_hostwake_irq();
	if (wakeup_enable) {
		device_init_wakeup(dev, false);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
		dev_pm_clear_wake_irq(dev);
#else
	AICWFDBG(LOGERROR, "%s kernel unsupport this feature!\r\n", __func__);
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0)
		wakeup_source_unregister(ws);
		//wakeup_source_unregister(ws_tx_sdio);
		//wakeup_source_unregister(ws_rx_sdio);
		//wakeup_source_unregister(ws_sdio_pwrctrl);
#else
#ifdef ANDROID_PLATFORM
		wake_lock_destroy(&irq_wakelock);
#endif //ANDROID_PLATFORM
#endif
	}
	free_irq(hostwake_irq_num, NULL);
#endif//CONFIG_GPIO_WAKEUP
	AICWFDBG(LOGINFO, "%s(%d)\n", __func__, __LINE__);
	return 0;
}

#ifdef CONFIG_GPIO_WAKEUP
static int rwnx_enable_hostwake_irq(void)
{
#ifdef CONFIG_GPIO_WAKEUP
	enable_irq(hostwake_irq_num);
	enable_irq_wake(hostwake_irq_num);
#endif//CONFIG_GPIO_WAKEUP
	printk("%s(%d)\n", __func__, __LINE__);
	return 0;
}

static int rwnx_disable_hostwake_irq(void)
{
	printk("%s(%d)\n", __func__, __LINE__);
#ifdef CONFIG_GPIO_WAKEUP
	disable_irq_nosync(hostwake_irq_num);
	//disable_irq_wake(hostwake_irq_num);
	//disable_irq(hostwake_irq_num);
#endif//CONFIG_GPIO_WAKEUP
	return 0;
}
#endif

static int aicwf_sdio_chipmatch(struct aic_sdio_dev *sdio_dev, u16_l vid, u16_l did){

	if(vid == SDIO_VENDOR_ID_AIC8801 && did == SDIO_DEVICE_ID_AIC8801){
		sdio_dev->chipid = PRODUCT_ID_AIC8801;
		AICWFDBG(LOGINFO, "%s USE AIC8801\r\n", __func__);
		return 0;
	}else if(vid == SDIO_VENDOR_ID_AIC8800DC && did == SDIO_DEVICE_ID_AIC8800DC){
		sdio_dev->chipid = PRODUCT_ID_AIC8800DC;
		AICWFDBG(LOGINFO, "%s USE AIC8800DC\r\n", __func__);
		return 0;
	}else if(vid == SDIO_VENDOR_ID_AIC8800D80 && did == SDIO_DEVICE_ID_AIC8800D80){
		sdio_dev->chipid = PRODUCT_ID_AIC8800D80;
		AICWFDBG(LOGINFO, "%s USE AIC8800D80\r\n", __func__);
		return 0;
	}else{
		return -1;
	}
}


extern int rwnx_send_me_set_lp_level(struct rwnx_hw *rwnx_hw, u8 lp_level);

static int aicwf_sdio_probe(struct sdio_func *func,
	const struct sdio_device_id *id)
{
	struct mmc_host *host;
	struct aic_sdio_dev *sdiodev;
	struct aicwf_bus *bus_if;
	int err = -ENODEV;

    AICWFDBG(LOGDEBUG, "%s:%d\n", __func__, func->num);
    AICWFDBG(LOGDEBUG, "Class=%x\n", func->class);
    AICWFDBG(LOGDEBUG, "sdio vendor ID: 0x%04x\n", func->vendor);
    AICWFDBG(LOGDEBUG, "sdio device ID: 0x%04x\n", func->device);
    AICWFDBG(LOGDEBUG, "Function#: %d\n", func->num);

	host = func->card->host;
	if (func->num != 1) {
		return err;
	}

	bus_if = kzalloc(sizeof(struct aicwf_bus), GFP_KERNEL);
	if (!bus_if) {
		sdio_err("alloc bus fail\n");
		return -ENOMEM;
	}

	sdiodev = kzalloc(sizeof(struct aic_sdio_dev), GFP_KERNEL);
	if (!sdiodev) {
		sdio_err("alloc sdiodev fail\n");
		kfree(bus_if);
		return -ENOMEM;
	}


	err = aicwf_sdio_chipmatch(sdiodev, func->vendor, func->device);


	sdiodev->func = func;
	sdiodev->bus_if = bus_if;
	bus_if->bus_priv.sdio = sdiodev;

	dev_set_drvdata(&func->dev, bus_if);
	sdiodev->dev = &func->dev;

	//sdio func init start
	err = aicwf_sdio_func_init(sdiodev);
	if (err < 0) {
		sdio_err("sdio func init fail\n");
		goto fail;
	}
	//sdio func init end

	if (aicwf_sdio_bus_init(sdiodev) == NULL) {
		sdio_err("sdio bus init fail\n");
		err = -1;
		goto fail;
	}

	host->caps |= MMC_CAP_NONREMOVABLE;
	aicwf_rwnx_sdio_platform_init(sdiodev);
	aicwf_hostif_ready();
	err = rwnx_register_hostwake_irq(sdiodev->dev);
	if (err != 0)
		return err;

#ifdef CONFIG_GPIO_WAKEUP
	rwnx_send_me_set_lp_level(sdiodev->rwnx_hw, 1);
#ifdef CONFIG_WIFI_SUSPEND_FOR_LINUX
	rwnx_init_wifi_suspend_node();
#endif//CONFIG_WIFI_SUSPEND_FOR_LINUX
#endif//CONFIG_GPIO_WAKEUP

	return 0;
fail:
	aicwf_sdio_func_deinit(sdiodev);
	dev_set_drvdata(&func->dev, NULL);
	kfree(sdiodev);
	kfree(bus_if);
	aicwf_hostif_fail();
	return err;
}

static void aicwf_sdio_remove(struct sdio_func *func)
{
	struct mmc_host *host;
	struct aicwf_bus *bus_if = NULL;
	struct aic_sdio_dev *sdiodev = NULL;

	AICWFDBG(LOGINFO, "%s Enter\n", __func__);
	host = func->card->host;
	host->caps &= ~MMC_CAP_NONREMOVABLE;
	bus_if = dev_get_drvdata(&func->dev);
	if (!bus_if) {
		return;
	}

	sdiodev = bus_if->bus_priv.sdio;
	if (!sdiodev) {
		return;
	}
	rwnx_unregister_hostwake_irq(sdiodev->dev);
	sdiodev->bus_if->state = BUS_DOWN_ST;
	aicwf_sdio_release(sdiodev);
	aicwf_sdio_func_deinit(sdiodev);
	dev_set_drvdata(&sdiodev->func->dev, NULL);
	kfree(sdiodev);
	kfree(bus_if);
#ifdef CONFIG_WIFI_SUSPEND_FOR_LINUX
	rwnx_deinit_wifi_suspend_node();
#endif//CONFIG_WIFI_SUSPEND_FOR_LINUX
	AICWFDBG(LOGINFO, "%s done\n", __func__);
}

static int aicwf_sdio_suspend(struct device *dev)
{
	int ret = 0;
	struct aicwf_bus *bus_if = dev_get_drvdata(dev);
	struct aic_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
	mmc_pm_flag_t sdio_flags;
	struct rwnx_vif *rwnx_vif, *tmp;

	sdio_dbg("%s enter\n", __func__);

	list_for_each_entry_safe(rwnx_vif, tmp, &sdiodev->rwnx_hw->vifs, list) {
		if (rwnx_vif->ndev)
			netif_device_detach(rwnx_vif->ndev);
	}

	sdio_flags = sdio_get_host_pm_caps(sdiodev->func);
	if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
		return -EINVAL;
	}
	ret = sdio_set_host_pm_flags(sdiodev->func, MMC_PM_KEEP_POWER);
	if (ret) {
		return ret;
	}

#if 1
	while (sdiodev->state == SDIO_ACTIVE_ST) {
		if (down_interruptible(&sdiodev->tx_priv->txctl_sema))
			continue;
        #if defined(CONFIG_SDIO_PWRCTRL)
		aicwf_sdio_pwr_stctl(sdiodev, SDIO_SLEEP_ST);
        #endif
		up(&sdiodev->tx_priv->txctl_sema);
		break;
	}
#ifdef CONFIG_GPIO_WAKEUP
	rwnx_enable_hostwake_irq();
#endif
#endif
#if 0
	sdio_dbg("%s SDIOWIFI_INTR_CONFIG_REG Disable\n", __func__);
	sdio_claim_host(sdiodev->func);
	//disable sdio interrupt
	ret = aicwf_sdio_writeb(sdiodev, SDIOWIFI_INTR_CONFIG_REG, 0x0);
	if (ret < 0) {
		sdio_err("reg:%d write failed!\n", SDIOWIFI_INTR_CONFIG_REG);
	}
	sdio_release_irq(sdiodev->func);
	sdio_release_host(sdiodev->func);
#endif
	sdio_dbg("%s exit\n", __func__);

	return 0;
}

static int aicwf_sdio_resume(struct device *dev)
{
	struct aicwf_bus *bus_if = dev_get_drvdata(dev);
	struct aic_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
	struct rwnx_vif *rwnx_vif, *tmp;
	//int ret;

	sdio_dbg("%s enter \n", __func__);
#ifdef CONFIG_GPIO_WAKEUP
	rwnx_disable_hostwake_irq();
#endif
	//dev_pm_clear_wake_irq(dev);
	list_for_each_entry_safe(rwnx_vif, tmp, &sdiodev->rwnx_hw->vifs, list) {
		if (rwnx_vif->ndev)
			netif_device_attach(rwnx_vif->ndev);
	}

	#if defined(CONFIG_SDIO_PWRCTRL)
	aicwf_sdio_pwr_stctl(sdiodev, SDIO_ACTIVE_ST);
	#endif
	#ifdef CONFIG_WIFI_SUSPEND_FOR_LINUX
	rwnx_set_wifi_suspend('0');
	#endif//CONFIG_WIFI_SUSPEND_FOR_LINUX


	aicwf_sdio_hal_irqhandler(sdiodev->func);

#if 0
	sdio_dbg("%s SDIOWIFI_INTR_CONFIG_REG Enable\n", __func__);
	sdio_claim_host(sdiodev->func);
	sdio_claim_irq(sdiodev->func, aicwf_sdio_hal_irqhandler);

	//enable sdio interrupt
	ret = aicwf_sdio_writeb(sdiodev, SDIOWIFI_INTR_CONFIG_REG, 0x07);
	if (ret != 0)
		sdio_err("intr register failed:%d\n", ret);
	sdio_release_host(sdiodev->func);
#endif


	sdio_dbg("%s exit\n", __func__);
	return 0;
}

static const struct sdio_device_id aicwf_sdmmc_ids[] = {
	{SDIO_DEVICE(SDIO_VENDOR_ID_AIC8801, SDIO_DEVICE_ID_AIC8801)},
	{SDIO_DEVICE(SDIO_VENDOR_ID_AIC8800DC, SDIO_DEVICE_ID_AIC8800DC)},
    {SDIO_DEVICE(SDIO_VENDOR_ID_AIC8800D80, SDIO_DEVICE_ID_AIC8800D80)},
	{ },
};

MODULE_DEVICE_TABLE(sdio, aicwf_sdmmc_ids);

static const struct dev_pm_ops aicwf_sdio_pm_ops = {
	SET_SYSTEM_SLEEP_PM_OPS(aicwf_sdio_suspend, aicwf_sdio_resume)
};

static struct sdio_driver aicwf_sdio_driver = {
	.probe = aicwf_sdio_probe,
	.remove = aicwf_sdio_remove,
	.name = AICWF_SDIO_NAME,
	.id_table = aicwf_sdmmc_ids,
	.drv = {
		.pm = &aicwf_sdio_pm_ops,
	},
};

#if 0
#ifdef CONFIG_NANOPI_M4
extern int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq);
extern unsigned  aic_max_freqs;
extern struct mmc_host *aic_host_drv;
extern int __mmc_claim_host(struct mmc_host *host, atomic_t *abort);
extern void mmc_release_host(struct mmc_host *host);
#endif
#endif

void aicwf_sdio_register(void)
{
#if 0
#ifdef CONFIG_PLATFORM_NANOPI
	extern_wifi_set_enable(0);
	mdelay(200);
	extern_wifi_set_enable(1);
	mdelay(200);
	sdio_reinit();
#endif /*CONFIG_PLATFORM_NANOPI*/

#ifdef CONFIG_PLATFORM_ROCKCHIP
	rockchip_wifi_power(0);
	mdelay(200);
	rockchip_wifi_power(1);
	mdelay(200);
	rockchip_wifi_set_carddetect(1);
#endif /*CONFIG_PLATFORM_ROCKCHIP*/

#ifdef CONFIG_INGENIC_T20
	jzmmc_manual_detect(1, 1);
#endif /* CONFIG_INGENIC_T20 */


#ifdef CONFIG_NANOPI_M4
	if (aic_host_drv->card == NULL) {
		__mmc_claim_host(aic_host_drv, NULL);
		printk("aic: >>>mmc_rescan_try_freq\n");
		mmc_rescan_try_freq(aic_host_drv, aic_max_freqs);
		mmc_release_host(aic_host_drv);
	}
#endif
#endif

	if (sdio_register_driver(&aicwf_sdio_driver)) {

	} else {
		//may add mmc_rescan here
	}
}

void aicwf_sdio_exit(void)
{
	if (g_rwnx_plat && g_rwnx_plat->enabled){
		rwnx_platform_deinit(g_rwnx_plat->sdiodev->rwnx_hw);
	}else{
		AICWFDBG(LOGERROR, "%s g_rwnx_plat is not ready \r\n", __func__);
	}

    udelay(500);
	sdio_unregister_driver(&aicwf_sdio_driver);

#if 0
#ifdef CONFIG_PLATFORM_AMLOGIC
	extern_wifi_set_enable(0);
#endif /*CONFIG_PLATFORM_AMLOGIC*/
#endif

#if 0
#ifdef CONFIG_PLATFORM_ROCKCHIP
	rockchip_wifi_set_carddetect(0);
	mdelay(200);
	rockchip_wifi_power(0);
	mdelay(200);
#endif /*CONFIG_PLATFORM_ROCKCHIP*/
#endif

	if(g_rwnx_plat){
		kfree(g_rwnx_plat);
	}
}

#if defined(CONFIG_SDIO_PWRCTRL)
int aicwf_sdio_wakeup(struct aic_sdio_dev *sdiodev)
{
	int ret = 0;
	int read_retry;
	int write_retry = 20;
    int wakeup_reg_val;

    if (sdiodev->chipid == PRODUCT_ID_AIC8801 ||
        sdiodev->chipid == PRODUCT_ID_AIC8800DC ||
        sdiodev->chipid == PRODUCT_ID_AIC8800DW) {
        wakeup_reg_val = 1;
    } else if (sdiodev->chipid == PRODUCT_ID_AIC8800D80) {
        wakeup_reg_val = 0x11;
    }

	if (sdiodev->state == SDIO_SLEEP_ST) {
		sdio_info("%s w\n", __func__);

		rwnx_pm_stay_awake(sdiodev);

		while (write_retry) {
			ret = aicwf_sdio_writeb(sdiodev, sdiodev->sdio_reg.wakeup_reg, wakeup_reg_val);
			if (ret) {
				txrx_err("sdio wakeup fail\n");
				ret = -1;
			} else {
				read_retry = 10;
				while (read_retry) {
					u8 val;
					ret = aicwf_sdio_readb(sdiodev, sdiodev->sdio_reg.sleep_reg, &val);
					if (ret < 0)
						txrx_err("sdio wakeup read fail\n");
					else if (val & 0x10) {
						break;
					}
					read_retry--;
					udelay(200);
				}
				if (read_retry != 0)
					break;
			}
			sdio_dbg("write retry:  %d \n", write_retry);
			write_retry--;
			udelay(100);
		}

		sdiodev->state = SDIO_ACTIVE_ST;
		aicwf_sdio_pwrctl_timer(sdiodev, sdiodev->active_duration);
	}
	return ret;
}

int aicwf_sdio_sleep_allow(struct aic_sdio_dev *sdiodev)
{
	int ret = 0;
	struct aicwf_bus *bus_if = sdiodev->bus_if;
	struct rwnx_hw *rwnx_hw = sdiodev->rwnx_hw;

	if (bus_if->state == BUS_DOWN_ST) {
		ret = aicwf_sdio_writeb(sdiodev, sdiodev->sdio_reg.sleep_reg, 0x10);
		if (ret) {
			sdio_err("Write sleep fail!\n");
		}
		aicwf_sdio_pwrctl_timer(sdiodev, 0);
		return ret;
	}

	sdio_info("sleep: %d, %d\n", sdiodev->state, scanning);
	if (sdiodev->state == SDIO_ACTIVE_ST  && !scanning && !rwnx_hw->is_p2p_alive \
				&& !rwnx_hw->is_p2p_connected) {
		sdio_info("%s s\n", __func__);
		ret = aicwf_sdio_writeb(sdiodev, sdiodev->sdio_reg.sleep_reg, 0x10);
		if (ret)
			sdio_err("Write sleep fail!\n");
		sdiodev->state = SDIO_SLEEP_ST;
		aicwf_sdio_pwrctl_timer(sdiodev, 0);
	} else {
		aicwf_sdio_pwrctl_timer(sdiodev, sdiodev->active_duration);
	}

	rwnx_pm_relax(sdiodev);
	return ret;
}

int aicwf_sdio_pwr_stctl(struct aic_sdio_dev *sdiodev, uint target)
{
	int ret = 0;

	if (sdiodev->bus_if->state == BUS_DOWN_ST) {
		return -1;
	}

	down(&sdiodev->pwrctl_wakeup_sema);

	if (sdiodev->state == target) {
		if (target == SDIO_ACTIVE_ST) {
			aicwf_sdio_pwrctl_timer(sdiodev, sdiodev->active_duration);
		}
		up(&sdiodev->pwrctl_wakeup_sema);
		return ret;
	}

	switch (target) {
	case SDIO_ACTIVE_ST:
		aicwf_sdio_wakeup(sdiodev);
		break;
	case SDIO_SLEEP_ST:
		aicwf_sdio_sleep_allow(sdiodev);
		break;
	}

	up(&sdiodev->pwrctl_wakeup_sema);
	return ret;
}
#endif

#if 0
int align_param = 16;
module_param(align_param, int, 0660);
#endif

int aicwf_sdio_txpkt(struct aic_sdio_dev *sdiodev, struct sk_buff *pkt)
{
	int ret = 0;
	u8 *frame;
	u32 len = 0;
	struct aicwf_bus *bus_if = dev_get_drvdata(sdiodev->dev);
#if 0
	int align = 0;
#endif
	if (bus_if->state == BUS_DOWN_ST) {
		sdio_dbg("tx bus is down!\n");
		return -EINVAL;
	}

#if 0
	len = pkt->len;
	len = (len + SDIOWIFI_FUNC_BLOCKSIZE - 1) / SDIOWIFI_FUNC_BLOCKSIZE * SDIOWIFI_FUNC_BLOCKSIZE;

	frame = (u8*)kmalloc(sizeof(u8) * len + align_param, GFP_ATOMIC);
	align = ((unsigned long)(frame)) & (align_param - 1);
	memcpy(frame + (align_param - align), (u8 *) (pkt->data), len);

	ret = aicwf_sdio_send_pkt(sdiodev, frame + (align_param - align), len);
	if (ret)
		sdio_err("aicwf_sdio_send_pkt fail%d\n", ret);

	kfree(frame);
#endif
#if 1
	frame = (u8 *) (pkt->data);
	len = pkt->len;
	len = (len + SDIOWIFI_FUNC_BLOCKSIZE - 1) / SDIOWIFI_FUNC_BLOCKSIZE * SDIOWIFI_FUNC_BLOCKSIZE;

	ret = aicwf_sdio_send_pkt(sdiodev, pkt->data, len);
	if (ret)
		sdio_err("aicwf_sdio_send_pkt fail%d\n", ret);
#endif
	return ret;
}

static int aicwf_sdio_intr_get_len_bytemode(struct aic_sdio_dev *sdiodev, u8 *byte_len)
{
	int ret = 0;

	if (!byte_len)
		return -EBADE;

	if (sdiodev->bus_if->state == BUS_DOWN_ST) {
		*byte_len = 0;
	} else {
		ret = aicwf_sdio_readb(sdiodev, sdiodev->sdio_reg.bytemode_len_reg, byte_len);
		sdiodev->rx_priv->data_len = (*byte_len)*4;
	}

	return ret;
}

static void aicwf_sdio_bus_stop(struct device *dev)
{
	struct aicwf_bus *bus_if = dev_get_drvdata(dev);
	struct aic_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
	int ret = 0;

    #if defined(CONFIG_SDIO_PWRCTRL)
	aicwf_sdio_pwrctl_timer(sdiodev, 0);
    #endif
	AICWFDBG(LOGINFO, "%s Enter\n", __func__);

	bus_if->state = BUS_DOWN_ST;
	if (sdiodev->tx_priv) {
		ret = down_interruptible(&sdiodev->tx_priv->txctl_sema);
		if (ret)
			AICWFDBG(LOGERROR, "down txctl_sema fail\n");
	}

    #if defined(CONFIG_SDIO_PWRCTRL)
	aicwf_sdio_pwr_stctl(sdiodev, SDIO_SLEEP_ST);
    #endif

	if (sdiodev->tx_priv) {
		if (!ret)
			up(&sdiodev->tx_priv->txctl_sema);
		aicwf_frame_queue_flush(&sdiodev->tx_priv->txq);
	}
	AICWFDBG(LOGINFO, "%s Exit \n", __func__);
}

#ifdef CONFIG_PREALLOC_RX_SKB
struct rx_buff *aicwf_sdio_readframes(struct aic_sdio_dev *sdiodev)
{
	int ret = 0;
	u32 size = 0;
	struct aicwf_bus *bus_if = dev_get_drvdata(sdiodev->dev);
	struct rx_buff* rxbuff;

	if (bus_if->state == BUS_DOWN_ST) {
		sdio_dbg("bus down\n");
		return NULL;
	}

	size = sdiodev->rx_priv->data_len;
	rxbuff =  aicwf_prealloc_rxbuff_alloc(&sdiodev->rx_priv->rxbuff_lock);
	if (rxbuff == NULL) {
		printk("failed to alloc rxbuff\n");
		return NULL;
	}
	rxbuff->len = 0;
	rxbuff->start = rxbuff->data;
	rxbuff->read = rxbuff->start;
	rxbuff->end = rxbuff->data + size;

	ret = aicwf_sdio_recv_pkt(sdiodev, rxbuff, size);
	if (ret) {
		printk("%s %d, sdio recv pkt fail\n", __func__, __LINE__);
		aicwf_prealloc_rxbuff_free(rxbuff, &sdiodev->rx_priv->rxbuff_lock);
		return NULL;
	}

	return rxbuff;
}
#else
struct sk_buff *aicwf_sdio_readframes(struct aic_sdio_dev *sdiodev)
{
	int ret = 0;
	u32 size = 0;
	struct sk_buff *skb = NULL;
	struct aicwf_bus *bus_if = dev_get_drvdata(sdiodev->dev);

	if (bus_if->state == BUS_DOWN_ST) {
		sdio_dbg("bus down\n");
		return NULL;
	}

	size = sdiodev->rx_priv->data_len;
	skb =  __dev_alloc_skb(size, GFP_KERNEL);
	if (!skb) {
		return NULL;
	}

	ret = aicwf_sdio_recv_pkt(sdiodev, skb, size);
	if (ret) {
		dev_kfree_skb(skb);
		skb = NULL;
	}

	return skb;
}
#endif

static int aicwf_sdio_tx_msg(struct aic_sdio_dev *sdiodev)
{
	int err = 0;
	u16 len;
	u8 *payload = sdiodev->tx_priv->cmd_buf;
	u16 payload_len = sdiodev->tx_priv->cmd_len;
	u8 adjust_str[4] = {0, 0, 0, 0};
	int adjust_len = 0;
	int buffer_cnt = 0;
	u8 retry = 0;

	len = payload_len;
	if ((len % TX_ALIGNMENT) != 0) {
		adjust_len = roundup(len, TX_ALIGNMENT);
		memcpy(payload+payload_len, adjust_str, (adjust_len - len));
		payload_len += (adjust_len - len);
	}
	len = payload_len;

	//link tail is necessary
	if ((len % SDIOWIFI_FUNC_BLOCKSIZE) != 0) {
		memset(payload+payload_len, 0, TAIL_LEN);
		payload_len += TAIL_LEN;
		len = (payload_len/SDIOWIFI_FUNC_BLOCKSIZE + 1) * SDIOWIFI_FUNC_BLOCKSIZE;
	} else
		len = payload_len;

	if(sdiodev->chipid == PRODUCT_ID_AIC8801 || sdiodev->chipid == PRODUCT_ID_AIC8800D80){
		buffer_cnt = aicwf_sdio_flow_ctrl_msg(sdiodev);
		while ((buffer_cnt <= 0 || (buffer_cnt > 0 && len > (buffer_cnt * BUFFER_SIZE))) && retry < 10) {
			retry++;
			buffer_cnt = aicwf_sdio_flow_ctrl_msg(sdiodev);
			printk("buffer_cnt = %d\n", buffer_cnt);
		}
	}
	down(&sdiodev->tx_priv->cmd_txsema);

	if(sdiodev->chipid == PRODUCT_ID_AIC8801 || sdiodev->chipid == PRODUCT_ID_AIC8800D80){
		if (buffer_cnt > 0 && len < (buffer_cnt * BUFFER_SIZE)) {
			err = aicwf_sdio_send_pkt(sdiodev, payload, len);
			if (err) {
				sdio_err("aicwf_sdio_send_pkt fail%d\n", err);
			}
		} else {
			sdio_err("tx msg fc retry fail:%d, %d\n", buffer_cnt, len);
			up(&sdiodev->tx_priv->cmd_txsema);
			return -1;
		}
	}else if(sdiodev->chipid == PRODUCT_ID_AIC8800DC){
		err = aicwf_sdio_send_pkt(sdiodev, payload, len);
		if (err) {
			sdio_err("aicwf_sdio_send_pkt fail%d\n", err);
		}
	} else {
		sdio_err("tx msg fc retry fail:%d, %d\n", buffer_cnt, len);
		up(&sdiodev->tx_priv->cmd_txsema);
		return -1;
	}

	sdiodev->tx_priv->cmd_txstate = false;
	if (!err)
		sdiodev->tx_priv->cmd_tx_succ = true;
	else
		sdiodev->tx_priv->cmd_tx_succ = false;

	up(&sdiodev->tx_priv->cmd_txsema);

	return err;

}

static void aicwf_sdio_tx_process(struct aic_sdio_dev *sdiodev)
{
	int err = 0;

	if (sdiodev->bus_if->state == BUS_DOWN_ST) {
		sdio_err("Bus is down\n");
		return;
	}

    #if defined(CONFIG_SDIO_PWRCTRL)
	aicwf_sdio_pwr_stctl(sdiodev, SDIO_ACTIVE_ST);
    #endif

	//config
	sdio_info("send cmd\n");
	if (sdiodev->tx_priv->cmd_txstate) {
		if (down_interruptible(&sdiodev->tx_priv->txctl_sema)) {
			txrx_err("txctl down bus->txctl_sema fail\n");
			return;
		}
		if (sdiodev->state != SDIO_ACTIVE_ST) {
			txrx_err("state err\n");
			up(&sdiodev->tx_priv->txctl_sema);
			txrx_err("txctl up bus->txctl_sema fail\n");
			return;
		}

		err = aicwf_sdio_tx_msg(sdiodev);
		up(&sdiodev->tx_priv->txctl_sema);
		if (waitqueue_active(&sdiodev->tx_priv->cmd_txdone_wait))
			wake_up(&sdiodev->tx_priv->cmd_txdone_wait);
	}

	//data
	sdio_info("send data\n");
	if (down_interruptible(&sdiodev->tx_priv->txctl_sema)) {
		txrx_err("txdata down bus->txctl_sema\n");
		return;
	}

	if (sdiodev->state != SDIO_ACTIVE_ST) {
		txrx_err("sdio state err\n");
		up(&sdiodev->tx_priv->txctl_sema);
		return;
	}

	if (!aicwf_is_framequeue_empty(&sdiodev->tx_priv->txq)){
		sdiodev->tx_priv->fw_avail_bufcnt = aicwf_sdio_flow_ctrl(sdiodev);
	}
	while (!aicwf_is_framequeue_empty(&sdiodev->tx_priv->txq)) {
		if(sdiodev->bus_if->state == BUS_DOWN_ST) {
			break;
		}
	        if (sdiodev->tx_priv->fw_avail_bufcnt <= DATA_FLOW_CTRL_THRESH) {
        	    if (sdiodev->tx_priv->cmd_txstate)
                	break;
            	    sdiodev->tx_priv->fw_avail_bufcnt = aicwf_sdio_flow_ctrl(sdiodev);
        	} else {
            		if (sdiodev->tx_priv->cmd_txstate) {
                		aicwf_sdio_send(sdiodev->tx_priv, 1);
                		break;
            		} else {
                		aicwf_sdio_send(sdiodev->tx_priv, 0);
            		}
        	}
	}

	up(&sdiodev->tx_priv->txctl_sema);
}

static int aicwf_sdio_bus_txdata(struct device *dev, struct sk_buff *pkt)
{
    uint prio;
    int ret = -EBADE;
    struct rwnx_txhdr *txhdr = NULL;
    int headroom = 0;
    struct aicwf_bus *bus_if = dev_get_drvdata(dev);
    struct aic_sdio_dev *sdiodev = bus_if->bus_priv.sdio;

    if (bus_if->state == BUS_DOWN_ST) {
        sdio_err("bus_if stopped\n");
        txhdr = (struct rwnx_txhdr *)pkt->data;
        headroom = txhdr->sw_hdr->headroom;
#ifdef CONFIG_CACHE_GUARD
		kmem_cache_free(txhdr->sw_hdr->rwnx_vif->rwnx_hw->sw_txhdr_cache, txhdr->sw_hdr);
#else
		kfree(txhdr->sw_hdr);
#endif
        skb_pull(pkt, headroom);
        consume_skb(pkt);
        return -1;
    }

    prio = (pkt->priority & 0x7);
    spin_lock_bh(&sdiodev->tx_priv->txqlock);
    if (!aicwf_frame_enq(sdiodev->dev, &sdiodev->tx_priv->txq, pkt, prio)) {
        txhdr = (struct rwnx_txhdr *)pkt->data;
        headroom = txhdr->sw_hdr->headroom;
#ifdef CONFIG_CACHE_GUARD
		kmem_cache_free(txhdr->sw_hdr->rwnx_vif->rwnx_hw->sw_txhdr_cache, txhdr->sw_hdr);
#else
		kfree(txhdr->sw_hdr);
#endif
        skb_pull(pkt, headroom);
        consume_skb(pkt);
        spin_unlock_bh(&sdiodev->tx_priv->txqlock);
        return -ENOSR;
    } else {
    	ret = 0;
    }

    atomic_inc(&sdiodev->tx_priv->tx_pktcnt);
    spin_unlock_bh(&sdiodev->tx_priv->txqlock);
    complete(&bus_if->bustx_trgg);

    return ret;
}

static int aicwf_sdio_bus_txmsg(struct device *dev, u8 *msg, uint msglen)
{
	struct aicwf_bus *bus_if = dev_get_drvdata(dev);
	struct aic_sdio_dev *sdiodev = bus_if->bus_priv.sdio;

	down(&sdiodev->tx_priv->cmd_txsema);
	sdiodev->tx_priv->cmd_txstate = true;
	sdiodev->tx_priv->cmd_tx_succ = false;
	sdiodev->tx_priv->cmd_buf = msg;
	sdiodev->tx_priv->cmd_len = msglen;
	up(&sdiodev->tx_priv->cmd_txsema);

	if (bus_if->state != BUS_UP_ST) {
		sdio_err("bus has stop\n");
		return -1;
	}

	complete(&bus_if->bustx_trgg);
#if 0
	if (sdiodev->tx_priv->cmd_txstate) {
		int timeout = msecs_to_jiffies(CMD_TX_TIMEOUT);
		ret = wait_event_interruptible_timeout(sdiodev->tx_priv->cmd_txdone_wait, \
											!(sdiodev->tx_priv->cmd_txstate), timeout);
	}

	if (!sdiodev->tx_priv->cmd_txstate && sdiodev->tx_priv->cmd_tx_succ) {
		ret = 0;
	} else {
		sdio_err("send faild:%d, %d,%x\n", sdiodev->tx_priv->cmd_txstate, sdiodev->tx_priv->cmd_tx_succ, ret);
		ret = -EIO;
	}
#endif
	return 0;
}


int aicwf_sdio_send(struct aicwf_tx_priv *tx_priv, u8 txnow)
{
	struct sk_buff *pkt;
	struct aic_sdio_dev *sdiodev = tx_priv->sdiodev;
	u32 aggr_len = 0;

	aggr_len = (tx_priv->tail - tx_priv->head);
	if (((atomic_read(&tx_priv->aggr_count) == 0) && (aggr_len != 0))
		|| ((atomic_read(&tx_priv->aggr_count) != 0) && (aggr_len == 0))) {
		if (aggr_len > 0)
			aicwf_sdio_aggrbuf_reset(tx_priv);
		goto done;
	}

	if (atomic_read(&tx_priv->aggr_count) == (tx_priv->fw_avail_bufcnt - DATA_FLOW_CTRL_THRESH)) {
		if (atomic_read(&tx_priv->aggr_count) > 0) {
			tx_priv->fw_avail_bufcnt -= atomic_read(&tx_priv->aggr_count);
			aicwf_sdio_aggr_send(tx_priv); //send and check the next pkt;
		}
	} else {
		spin_lock_bh(&sdiodev->tx_priv->txqlock);
		pkt = aicwf_frame_dequeue(&sdiodev->tx_priv->txq);
		if (pkt == NULL) {
			sdio_err("txq no pkt\n");
			spin_unlock_bh(&sdiodev->tx_priv->txqlock);
			goto done;
		}
		atomic_dec(&sdiodev->tx_priv->tx_pktcnt);
		spin_unlock_bh(&sdiodev->tx_priv->txqlock);

		if (tx_priv == NULL || tx_priv->tail == NULL || pkt == NULL)
			txrx_err("null error\n");
		if (aicwf_sdio_aggr(tx_priv, pkt)) {
			aicwf_sdio_aggrbuf_reset(tx_priv);
			sdio_err("add aggr pkts failed!\n");
			goto done;
		}

		//when aggr finish or there is cmd to send, just send this aggr pkt to fw
		if ((int)atomic_read(&sdiodev->tx_priv->tx_pktcnt) == 0 || txnow || (atomic_read(&tx_priv->aggr_count) == (tx_priv->fw_avail_bufcnt - DATA_FLOW_CTRL_THRESH))) {
			tx_priv->fw_avail_bufcnt -= atomic_read(&tx_priv->aggr_count);
			aicwf_sdio_aggr_send(tx_priv);
		} else
			goto done;
	}

done:
	return 0;
}

int aicwf_sdio_aggr(struct aicwf_tx_priv *tx_priv, struct sk_buff *pkt)
{
	struct rwnx_txhdr *txhdr = (struct rwnx_txhdr *)pkt->data;
	u8 *start_ptr = tx_priv->tail;
	u8 sdio_header[4];
	u8 adjust_str[4] = {0, 0, 0, 0};
	u32 curr_len = 0;
	int allign_len = 0;
	int headroom;

	sdio_header[0] = ((pkt->len - sizeof(struct rwnx_txhdr) + sizeof(struct txdesc_api)) & 0xff);
	sdio_header[1] = (((pkt->len - sizeof(struct rwnx_txhdr) + sizeof(struct txdesc_api)) >> 8)&0x0f);
	sdio_header[2] = 0x01; //data
	if (tx_priv->sdiodev->chipid == PRODUCT_ID_AIC8801 || 
        tx_priv->sdiodev->chipid == PRODUCT_ID_AIC8800DC ||
        tx_priv->sdiodev->chipid == PRODUCT_ID_AIC8800DW)
        sdio_header[3] = 0; //reserved
    else if (tx_priv->sdiodev->chipid == PRODUCT_ID_AIC8800D80)
	    sdio_header[3] = crc8_ponl_107(&sdio_header[0], 3); // crc8

	memcpy(tx_priv->tail, (u8 *)&sdio_header, sizeof(sdio_header));
	tx_priv->tail += sizeof(sdio_header);
	//payload
	memcpy(tx_priv->tail, (u8 *)(long)&txhdr->sw_hdr->desc, sizeof(struct txdesc_api));
	tx_priv->tail += sizeof(struct txdesc_api); //hostdesc
	memcpy(tx_priv->tail, (u8 *)((u8 *)txhdr + txhdr->sw_hdr->headroom), pkt->len-txhdr->sw_hdr->headroom);
	tx_priv->tail += (pkt->len - txhdr->sw_hdr->headroom);

	//word alignment
	curr_len = tx_priv->tail - tx_priv->head;
	if (curr_len & (TX_ALIGNMENT - 1)) {
		allign_len = roundup(curr_len, TX_ALIGNMENT)-curr_len;
		memcpy(tx_priv->tail, adjust_str, allign_len);
		tx_priv->tail += allign_len;
	}

	if (tx_priv->sdiodev->chipid == PRODUCT_ID_AIC8801 || tx_priv->sdiodev->chipid == PRODUCT_ID_AIC8800DC ||
        tx_priv->sdiodev->chipid == PRODUCT_ID_AIC8800DW) {
    	start_ptr[0] = ((tx_priv->tail - start_ptr - 4) & 0xff);
    	start_ptr[1] = (((tx_priv->tail - start_ptr - 4)>>8) & 0x0f);
    }
	tx_priv->aggr_buf->dev = pkt->dev;

	if (!txhdr->sw_hdr->need_cfm) {
		headroom = txhdr->sw_hdr->headroom;
#ifdef CONFIG_CACHE_GUARD
		kmem_cache_free(txhdr->sw_hdr->rwnx_vif->rwnx_hw->sw_txhdr_cache, txhdr->sw_hdr);
#else
		kfree(txhdr->sw_hdr);
#endif
		skb_pull(pkt, headroom);
		consume_skb(pkt);
	}

	atomic_inc(&tx_priv->aggr_count);
	return 0;
}

void aicwf_sdio_aggr_send(struct aicwf_tx_priv *tx_priv)
{
	struct sk_buff *tx_buf = tx_priv->aggr_buf;
	int ret = 0;
	int curr_len = 0;

	//link tail is necessary
	curr_len = tx_priv->tail - tx_priv->head;
	if ((curr_len % TXPKT_BLOCKSIZE) != 0) {
		memset(tx_priv->tail, 0, TAIL_LEN);
		tx_priv->tail += TAIL_LEN;
	}

	tx_buf->len = tx_priv->tail - tx_priv->head;
	ret = aicwf_sdio_txpkt(tx_priv->sdiodev, tx_buf);
	if (ret < 0) {
		sdio_err("fail to send aggr pkt!\n");
	}

	aicwf_sdio_aggrbuf_reset(tx_priv);
}

void aicwf_sdio_aggrbuf_reset(struct aicwf_tx_priv *tx_priv)
{
	struct sk_buff *aggr_buf = tx_priv->aggr_buf;

	tx_priv->tail = tx_priv->head;
	aggr_buf->len = 0;
	atomic_set(&tx_priv->aggr_count, 0);
}

static int aicwf_sdio_bus_start(struct device *dev)
{
	struct aicwf_bus *bus_if = dev_get_drvdata(dev);
	struct aic_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
	int ret = 0;


	sdio_claim_host(sdiodev->func);
	sdio_claim_irq(sdiodev->func, aicwf_sdio_hal_irqhandler);

    if(sdiodev->chipid == PRODUCT_ID_AIC8800D80){
        sdio_f0_writeb(sdiodev->func, 0x07, 0x04, &ret);
        if (ret) {
            sdio_err("set func0 int en fail %d\n", ret);
        }
    }
    sdio_release_host(sdiodev->func);

	//enable sdio interrupt
	ret = aicwf_sdio_writeb(sdiodev, sdiodev->sdio_reg.intr_config_reg, 0x07);
	if (ret != 0)
		sdio_err("intr register failed:%d\n", ret);

	bus_if->state = BUS_UP_ST;

	return ret;
}

#ifdef CONFIG_TXRX_THREAD_PRIO

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0))
#include "uapi/linux/sched/types.h"
#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0))
#include "linux/sched/types.h"
#else
#include "linux/sched/rt.h"
#endif

int bustx_thread_prio = 1;
module_param_named(bustx_thread_prio, bustx_thread_prio, int, 0644);
//module_param(bustx_thread_prio, int, 0);
int busrx_thread_prio = 1;
module_param_named(busrx_thread_prio, busrx_thread_prio, int, 0644);
//module_param(busrx_thread_prio, int, 0);
#endif

int sdio_bustx_thread(void *data)
{
	struct aicwf_bus *bus = (struct aicwf_bus *) data;
	struct aic_sdio_dev *sdiodev = bus->bus_priv.sdio;

#ifdef CONFIG_TXRX_THREAD_PRIO
		if (bustx_thread_prio > 0) {
				struct sched_param param;
				param.sched_priority = (bustx_thread_prio < MAX_RT_PRIO)?bustx_thread_prio:(MAX_RT_PRIO-1);
				sched_setscheduler(current, SCHED_FIFO, &param);
		}
#endif


	while (1) {
		if (kthread_should_stop()) {
			AICWFDBG(LOGERROR, "sdio bustx thread stop\n");
			break;
		}
	if (!wait_for_completion_interruptible(&bus->bustx_trgg)) {
			if (sdiodev->bus_if->state == BUS_DOWN_ST)
				continue;
			if ((int)(atomic_read(&sdiodev->tx_priv->tx_pktcnt) > 0) || (sdiodev->tx_priv->cmd_txstate == true)){
				rwnx_pm_stay_awake(sdiodev);
				aicwf_sdio_tx_process(sdiodev);
				rwnx_pm_relax(sdiodev);
			}
		}
	}

	return 0;
}


int sdio_busrx_thread(void *data)
{
	struct aicwf_rx_priv *rx_priv = (struct aicwf_rx_priv *)data;
	struct aicwf_bus *bus_if = rx_priv->sdiodev->bus_if;

#ifdef CONFIG_TXRX_THREAD_PRIO
		if (busrx_thread_prio > 0) {
				struct sched_param param;
				param.sched_priority = (busrx_thread_prio < MAX_RT_PRIO)?busrx_thread_prio:(MAX_RT_PRIO-1);
				sched_setscheduler(current, SCHED_FIFO, &param);
		}
#endif


	while (1) {
		if (kthread_should_stop()) {
			AICWFDBG(LOGERROR, "sdio busrx thread stop\n");
			break;
		}
		if (!wait_for_completion_interruptible(&bus_if->busrx_trgg)) {

			if (bus_if->state == BUS_DOWN_ST)
				continue;
			rwnx_pm_stay_awake(rx_priv->sdiodev);
			aicwf_process_rxframes(rx_priv);
			rwnx_pm_relax(rx_priv->sdiodev);
		}
	}

	return 0;
}

#if defined(CONFIG_SDIO_PWRCTRL)
static int aicwf_sdio_pwrctl_thread(void *data)
{
	struct aic_sdio_dev *sdiodev = (struct aic_sdio_dev *) data;

	while (1) {
		if (kthread_should_stop()) {
			sdio_err("sdio pwrctl thread stop\n");
			break;
		}
		if (!wait_for_completion_interruptible(&sdiodev->pwrctrl_trgg)) {
			//printk("%s working\r\n", __func__);

			if (sdiodev->bus_if->state == BUS_DOWN_ST)
				continue;
			if ((int)(atomic_read(&sdiodev->tx_priv->tx_pktcnt) <= 0) && (sdiodev->tx_priv->cmd_txstate == false) && \
					atomic_read(&sdiodev->rx_priv->rx_cnt) == 0)
				aicwf_sdio_pwr_stctl(sdiodev, SDIO_SLEEP_ST);
			else
				aicwf_sdio_pwrctl_timer(sdiodev, sdiodev->active_duration);
		}
	}

	return 0;
}

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
static void aicwf_sdio_bus_pwrctl(ulong data)
#else
static void aicwf_sdio_bus_pwrctl(struct timer_list *t)
#endif
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
	struct aic_sdio_dev *sdiodev = (struct aic_sdio_dev *) data;
#else
	struct aic_sdio_dev *sdiodev = from_timer(sdiodev, t, timer);
#endif

	if (sdiodev->bus_if->state == BUS_DOWN_ST) {
		sdio_err("bus down\n");
		return;
	}

	if (sdiodev->pwrctl_tsk) {
		complete(&sdiodev->pwrctrl_trgg);
	}
}
#endif

#ifdef CONFIG_PREALLOC_RX_SKB
static void aicwf_sdio_enq_rxpkt(struct aic_sdio_dev *sdiodev, struct rx_buff *pkt)
#else
static void aicwf_sdio_enq_rxpkt(struct aic_sdio_dev *sdiodev, struct sk_buff *pkt)
#endif
{
	struct aicwf_rx_priv *rx_priv = sdiodev->rx_priv;
	unsigned long flags = 0;

	spin_lock_irqsave(&rx_priv->rxqlock, flags);
	#ifdef CONFIG_PREALLOC_RX_SKB
	if (!aicwf_rxbuff_enqueue(sdiodev->dev, &rx_priv->rxq, pkt)) {
		spin_unlock_irqrestore(&rx_priv->rxqlock, flags);
		printk("%s %d, enqueue rxq fail\n", __func__, __LINE__);
		aicwf_prealloc_rxbuff_free(pkt, &rx_priv->rxbuff_lock);
		return;
    }
	#else
	if (!aicwf_rxframe_enqueue(sdiodev->dev, &rx_priv->rxq, pkt)) {
		spin_unlock_irqrestore(&rx_priv->rxqlock, flags);
		aicwf_dev_skb_free(pkt);
		return;
	}
	#endif
	spin_unlock_irqrestore(&rx_priv->rxqlock, flags);

	atomic_inc(&rx_priv->rx_cnt);
}


#define SDIO_OTHER_INTERRUPT (0x1ul << 7)

void aicwf_sdio_hal_irqhandler(struct sdio_func *func)
{
	struct aicwf_bus *bus_if = dev_get_drvdata(&func->dev);
	struct aic_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
	u8 intstatus = 0;
	u8 byte_len = 0;
	#ifdef CONFIG_PREALLOC_RX_SKB
	struct rx_buff *pkt = NULL;
	#else
	struct sk_buff *pkt = NULL;
	#endif
	int ret;

	//printk("%s enter \r\n", __func__);

	if ((int)(atomic_read(&sdiodev->irq_sdio_atomic)) > 0){
		printk("%s conflict return it\r\n", __func__);
		return;
	}else{
		atomic_inc(&sdiodev->irq_sdio_atomic);
	}


	if (!bus_if || bus_if->state == BUS_DOWN_ST) {
		sdio_err("bus err\n");
		atomic_dec(&sdiodev->irq_sdio_atomic);
		return;
	}

    if (sdiodev->chipid == PRODUCT_ID_AIC8801 || sdiodev->chipid == PRODUCT_ID_AIC8800DC ||
        sdiodev->chipid == PRODUCT_ID_AIC8800DW) {
    	#ifdef CONFIG_PREALLOC_RX_SKB
    	if (list_empty(&aic_rx_buff_list.rxbuff_list)) {
            printk("%s %d, rxbuff list is empty\n", __func__, __LINE__);
            return;
        }
    	#endif
    	ret = aicwf_sdio_readb(sdiodev, sdiodev->sdio_reg.block_cnt_reg, &intstatus);
    	while (ret || (intstatus & SDIO_OTHER_INTERRUPT)) {
    		sdio_err("ret=%d, intstatus=%x\r\n", ret, intstatus);
    		ret = aicwf_sdio_readb(sdiodev, sdiodev->sdio_reg.block_cnt_reg, &intstatus);
    	}
    	sdiodev->rx_priv->data_len = intstatus * SDIOWIFI_FUNC_BLOCKSIZE;

    	if (intstatus > 0) {
    		if (intstatus < 64) {
    			pkt = aicwf_sdio_readframes(sdiodev);
    		} else {
    			aicwf_sdio_intr_get_len_bytemode(sdiodev, &byte_len);//byte_len must<= 128
    			sdio_info("byte mode len=%d\r\n", byte_len);
    			pkt = aicwf_sdio_readframes(sdiodev);
    		}
    	} else {
    	#ifndef CONFIG_PLATFORM_ALLWINNER
    	//	sdio_err("Interrupt but no data\n");
    	#endif
    	}

    	if (pkt)
    		aicwf_sdio_enq_rxpkt(sdiodev, pkt);

    	complete(&bus_if->busrx_trgg);
    }else if (sdiodev->chipid == PRODUCT_ID_AIC8800D80) {
        do {
            ret = aicwf_sdio_readb(sdiodev, sdiodev->sdio_reg.misc_int_status_reg, &intstatus);
            if (!ret) {
                break;
            }
            sdio_err("ret=%d, intstatus=%x\r\n",ret, intstatus);
        } while (1);
        if (intstatus & SDIO_OTHER_INTERRUPT) {
            u8 int_pending;
            ret = aicwf_sdio_readb(sdiodev, sdiodev->sdio_reg.sleep_reg, &int_pending);
            if (ret < 0) {
                sdio_err("reg:%d read failed!\n", sdiodev->sdio_reg.sleep_reg);
            }
            int_pending &= ~0x01; // dev to host soft irq
            ret = aicwf_sdio_writeb(sdiodev, sdiodev->sdio_reg.sleep_reg, int_pending);
            if (ret < 0) {
                sdio_err("reg:%d write failed!\n", sdiodev->sdio_reg.sleep_reg);
            }
        }

        if (intstatus > 0) {
            uint8_t intmaskf2 = intstatus | (0x1UL << 3);
            if (intmaskf2 > 120U) { // func2
                if (intmaskf2 == 127U) { // byte mode
                    //aicwf_sdio_intr_get_len_bytemode(sdiodev, &byte_len, 1);//byte_len must<= 128
                    aicwf_sdio_intr_get_len_bytemode(sdiodev, &byte_len);//byte_len must<= 128
                    sdio_info("byte mode len=%d\r\n", byte_len);
                    //pkt = aicwf_sdio_readframes(sdiodev, 1);
                    pkt = aicwf_sdio_readframes(sdiodev);
                } else { // block mode
                    sdiodev->rx_priv->data_len = (intstatus & 0x7U) * SDIOWIFI_FUNC_BLOCKSIZE;
                    //pkt = aicwf_sdio_readframes(sdiodev, 1);
                    pkt = aicwf_sdio_readframes(sdiodev);
                }
            } else { // func1
                if (intstatus == 120U) { // byte mode
                    //aicwf_sdio_intr_get_len_bytemode(sdiodev, &byte_len, 0);//byte_len must<= 128
                    aicwf_sdio_intr_get_len_bytemode(sdiodev, &byte_len);//byte_len must<= 128
                    sdio_info("byte mode len=%d\r\n", byte_len);
                    //pkt = aicwf_sdio_readframes(sdiodev, 0);
                    pkt = aicwf_sdio_readframes(sdiodev);
                } else { // block mode
                    sdiodev->rx_priv->data_len = (intstatus & 0x7FU) * SDIOWIFI_FUNC_BLOCKSIZE;
                    //pkt = aicwf_sdio_readframes(sdiodev, 0);
                    pkt = aicwf_sdio_readframes(sdiodev);
                }
    		}
        } else {
    #ifndef CONFIG_PLATFORM_ALLWINNER
            //sdio_err("Interrupt but no data\n");
    #endif
        }

        if (pkt)
            aicwf_sdio_enq_rxpkt(sdiodev, pkt);

        if(atomic_read(&sdiodev->rx_priv->rx_cnt) == 1)
            complete(&bus_if->busrx_trgg);
    }

	atomic_dec(&sdiodev->irq_sdio_atomic);
}

#if defined(CONFIG_SDIO_PWRCTRL)
void aicwf_sdio_pwrctl_timer(struct aic_sdio_dev *sdiodev, uint duration)
{
	uint timeout;

	//printk("%s duration:%d\r\n", __func__, duration);
	if (sdiodev->bus_if->state == BUS_DOWN_ST && duration)
		return;

	spin_lock_bh(&sdiodev->pwrctl_lock);
	if (!duration) {
		if (timer_pending(&sdiodev->timer))
			del_timer_sync(&sdiodev->timer);
	} else {
		sdiodev->active_duration = duration;
		timeout = msecs_to_jiffies(sdiodev->active_duration);
		mod_timer(&sdiodev->timer, jiffies + timeout);
	}
	spin_unlock_bh(&sdiodev->pwrctl_lock);
}
#endif

static struct aicwf_bus_ops aicwf_sdio_bus_ops = {
	.stop = aicwf_sdio_bus_stop,
	.start = aicwf_sdio_bus_start,
	.txdata = aicwf_sdio_bus_txdata,
	.txmsg = aicwf_sdio_bus_txmsg,
};

void aicwf_sdio_release(struct aic_sdio_dev *sdiodev)
{
	struct aicwf_bus *bus_if;
	int ret;
	AICWFDBG(LOGINFO, "%s Enter\n", __func__);

	bus_if = dev_get_drvdata(sdiodev->dev);
	bus_if->state = BUS_DOWN_ST;

	sdio_claim_host(sdiodev->func);
	//disable sdio interrupt
    ret = aicwf_sdio_writeb(sdiodev, sdiodev->sdio_reg.intr_config_reg, 0x0);
	if (ret < 0) {
		AICWFDBG(LOGERROR, "reg:%d write failed!\n", sdiodev->sdio_reg.intr_config_reg);
	}
	sdio_release_irq(sdiodev->func);
	sdio_release_host(sdiodev->func);

	if (sdiodev->dev)
		aicwf_bus_deinit(sdiodev->dev);

	if (sdiodev->tx_priv)
		aicwf_tx_deinit(sdiodev->tx_priv);

	if (sdiodev->rx_priv)
		aicwf_rx_deinit(sdiodev->rx_priv);

	#if defined(CONFIG_SDIO_PWRCTRL)
	if (sdiodev->pwrctl_tsk) {
		complete_all(&sdiodev->pwrctrl_trgg);
		kthread_stop(sdiodev->pwrctl_tsk);
		sdiodev->pwrctl_tsk = NULL;
	}

	AICWFDBG(LOGINFO, "%s:pwrctl stopped\n", __func__);
	#endif

	if (sdiodev->cmd_mgr.state == RWNX_CMD_MGR_STATE_INITED)
		rwnx_cmd_mgr_deinit(&sdiodev->cmd_mgr);
	AICWFDBG(LOGINFO, "%s Exit\n", __func__);
}

void aicwf_sdio_reg_init(struct aic_sdio_dev *sdiodev)
{
    sdio_dbg("%s\n", __func__);

    if(sdiodev->chipid == PRODUCT_ID_AIC8801 || sdiodev->chipid == PRODUCT_ID_AIC8800DC || 
       sdiodev->chipid == PRODUCT_ID_AIC8800DW){
        sdiodev->sdio_reg.bytemode_len_reg =       SDIOWIFI_BYTEMODE_LEN_REG;
        sdiodev->sdio_reg.intr_config_reg =        SDIOWIFI_INTR_CONFIG_REG;
        sdiodev->sdio_reg.sleep_reg =              SDIOWIFI_SLEEP_REG;
        sdiodev->sdio_reg.wakeup_reg =             SDIOWIFI_WAKEUP_REG;
        sdiodev->sdio_reg.flow_ctrl_reg =          SDIOWIFI_FLOW_CTRL_REG;
        sdiodev->sdio_reg.register_block =         SDIOWIFI_REGISTER_BLOCK;
        sdiodev->sdio_reg.bytemode_enable_reg =    SDIOWIFI_BYTEMODE_ENABLE_REG;
        sdiodev->sdio_reg.block_cnt_reg =          SDIOWIFI_BLOCK_CNT_REG;
        sdiodev->sdio_reg.rd_fifo_addr =           SDIOWIFI_RD_FIFO_ADDR;
        sdiodev->sdio_reg.wr_fifo_addr =           SDIOWIFI_WR_FIFO_ADDR;
	} else if (sdiodev->chipid == PRODUCT_ID_AIC8800D80){
        sdiodev->sdio_reg.bytemode_len_reg =       SDIOWIFI_BYTEMODE_LEN_REG_V3;
        sdiodev->sdio_reg.intr_config_reg =        SDIOWIFI_INTR_ENABLE_REG_V3;
        sdiodev->sdio_reg.sleep_reg =              SDIOWIFI_INTR_PENDING_REG_V3;
        sdiodev->sdio_reg.wakeup_reg =             SDIOWIFI_INTR_TO_DEVICE_REG_V3;
        sdiodev->sdio_reg.flow_ctrl_reg =          SDIOWIFI_FLOW_CTRL_Q1_REG_V3;
        sdiodev->sdio_reg.bytemode_enable_reg =    SDIOWIFI_BYTEMODE_ENABLE_REG_V3;
        sdiodev->sdio_reg.misc_int_status_reg =    SDIOWIFI_MISC_INT_STATUS_REG_V3;
        sdiodev->sdio_reg.rd_fifo_addr =           SDIOWIFI_RD_FIFO_ADDR_V3;
        sdiodev->sdio_reg.wr_fifo_addr =           SDIOWIFI_WR_FIFO_ADDR_V3;
    }
}

int aicwf_sdio_func_init(struct aic_sdio_dev *sdiodev)
{
	struct mmc_host *host;
	u8 block_bit0 = 0x1;
	u8 byte_mode_disable = 0x1;//1: no byte mode
	int ret = 0;
	struct aicbsp_feature_t feature;
	u8 val = 0;
    u8 val1 = 0;

	aicbsp_get_feature(&feature, NULL);
    aicwf_sdio_reg_init(sdiodev);

	host = sdiodev->func->card->host;

	sdio_claim_host(sdiodev->func);
#if 0//SDIO PHASE SETTING
	sdiodev->func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
	sdio_f0_writeb(sdiodev->func, feature.sdio_phase, 0x13, &ret);
	if (ret < 0) {
		AICWFDBG(LOGERROR, "write func0 fail %d\n", ret);
         sdio_release_host(sdiodev->func);
		return ret;
	}
#endif
	ret = sdio_set_block_size(sdiodev->func, SDIOWIFI_FUNC_BLOCKSIZE);
	if (ret < 0) {
		AICWFDBG(LOGERROR, "set blocksize fail %d\n", ret);
		sdio_release_host(sdiodev->func);
		return ret;
	}
	ret = sdio_enable_func(sdiodev->func);
	if (ret < 0) {
		sdio_release_host(sdiodev->func);
		AICWFDBG(LOGERROR, "enable func fail %d.\n", ret);
        return ret;
	}

#if 1//SDIO CLOCK SETTING
	if (feature.sdio_clock > 0) {
		host->ios.clock = feature.sdio_clock;
		host->ops->set_ios(host, &host->ios);
		AICWFDBG(LOGINFO, "Set SDIO Clock %d MHz\n", host->ios.clock/1000000);
	}
#endif

	sdio_release_host(sdiodev->func);

    if (sdiodev->chipid != PRODUCT_ID_AIC8800D80) {
    	ret = aicwf_sdio_writeb(sdiodev, sdiodev->sdio_reg.register_block, block_bit0);
    	if (ret < 0) {
    		AICWFDBG(LOGERROR, "reg:%d write failed!\n", sdiodev->sdio_reg.register_block);
    		return ret;
    	}
    }

	//1: no byte mode
	ret = aicwf_sdio_writeb(sdiodev, sdiodev->sdio_reg.bytemode_enable_reg, byte_mode_disable);
	if (ret < 0) {
		AICWFDBG(LOGERROR, "reg:%d write failed!\n", sdiodev->sdio_reg.bytemode_enable_reg);
		return ret;
	}

    if (sdiodev->chipid == PRODUCT_ID_AIC8800D80) {
        sdio_claim_host(sdiodev->func);
        if (host->ios.timing == MMC_TIMING_UHS_DDR50) {
            val = 0x21;//0x1D;//0x5;
        } else {
            val = 0x01;//0x19;//0x1;
        }
        sdio_f0_writeb(sdiodev->func, val, 0xF0, &ret);
        if (ret) {
            sdio_err("set iopad ctrl fail %d\n", ret);
            sdio_release_host(sdiodev->func);
            return ret;
        }
        sdio_f0_writeb(sdiodev->func, 0x0, 0xF8, &ret);
        if (ret) {
            sdio_err("set iopad delay2 fail %d\n", ret);
            sdio_release_host(sdiodev->func);
            return ret;
        }
        sdio_f0_writeb(sdiodev->func, 0x0, 0xF1, &ret);
        if (ret) {
            sdio_err("set iopad delay1 fail %d\n", ret);
            sdio_release_host(sdiodev->func);
            return ret;
        }
        sdio_release_host(sdiodev->func);
    }

	ret = aicwf_sdio_writeb(sdiodev, sdiodev->sdio_reg.wakeup_reg, 1);
	if (ret < 0) {
        AICWFDBG(LOGERROR, "reg:%d write failed!\n", sdiodev->sdio_reg.wakeup_reg);
		return ret;
	}

#if 1
	mdelay(5);
	ret = aicwf_sdio_readb(sdiodev, sdiodev->sdio_reg.sleep_reg, &val1);
	if (ret < 0) {
		AICWFDBG(LOGERROR, "reg:%d read failed!\n", sdiodev->sdio_reg.sleep_reg);
		return ret;
	}

	if(!(val1 & 0x10)){
		AICWFDBG(LOGERROR, "wakeup fail\n");
	}else{
		AICWFDBG(LOGINFO, "sdio ready\n");
	}
#endif
	return ret;
}


void aicwf_sdio_func_deinit(struct aic_sdio_dev *sdiodev)
{
	sdio_claim_host(sdiodev->func);
	sdio_disable_func(sdiodev->func);
	sdio_release_host(sdiodev->func);
}

void *aicwf_sdio_bus_init(struct aic_sdio_dev *sdiodev)
{
	int ret;
	struct aicwf_bus *bus_if;
	struct aicwf_rx_priv *rx_priv;
	struct aicwf_tx_priv *tx_priv;

    #if defined(CONFIG_SDIO_PWRCTRL)
	spin_lock_init(&sdiodev->pwrctl_lock);
	sema_init(&sdiodev->pwrctl_wakeup_sema, 1);
    #endif

	bus_if = sdiodev->bus_if;
	bus_if->dev = sdiodev->dev;
	bus_if->ops = &aicwf_sdio_bus_ops;
	bus_if->state = BUS_DOWN_ST;
    #if defined(CONFIG_SDIO_PWRCTRL)
	sdiodev->state = SDIO_SLEEP_ST;
	sdiodev->active_duration = SDIOWIFI_PWR_CTRL_INTERVAL;
    #else
	sdiodev->state = SDIO_ACTIVE_ST;
    #endif

	rx_priv = aicwf_rx_init(sdiodev);
	if (!rx_priv) {
		sdio_err("rx init fail\n");
		goto fail;
	}
	sdiodev->rx_priv = rx_priv;

	tx_priv = aicwf_tx_init(sdiodev);
	if (!tx_priv) {
		sdio_err("tx init fail\n");
		goto fail;
	}
	sdiodev->tx_priv = tx_priv;
	aicwf_frame_queue_init(&tx_priv->txq, 8, TXQLEN);
	spin_lock_init(&tx_priv->txqlock);
	sema_init(&tx_priv->txctl_sema, 1);
	sema_init(&tx_priv->cmd_txsema, 1);
	init_waitqueue_head(&tx_priv->cmd_txdone_wait);
	atomic_set(&tx_priv->tx_pktcnt, 0);

#if defined(CONFIG_SDIO_PWRCTRL)
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0)
	init_timer(&sdiodev->timer);
	sdiodev->timer.data = (ulong) sdiodev;
	sdiodev->timer.function = aicwf_sdio_bus_pwrctl;
#else
	timer_setup(&sdiodev->timer, aicwf_sdio_bus_pwrctl, 0);
#endif
	init_completion(&sdiodev->pwrctrl_trgg);
#ifdef AICWF_SDIO_SUPPORT
	sdiodev->pwrctl_tsk = kthread_run(aicwf_sdio_pwrctl_thread, sdiodev, "aicwf_pwrctl");
#endif
	if (IS_ERR(sdiodev->pwrctl_tsk)) {
		sdiodev->pwrctl_tsk = NULL;
	}
#endif

	ret = aicwf_bus_init(0, sdiodev->dev);
	if (ret < 0) {
		sdio_err("bus init fail\n");
		goto fail;
	}

	ret  = aicwf_bus_start(bus_if);
	if (ret != 0) {
		sdio_err("bus start fail\n");
		goto fail;
	}

	return sdiodev;

fail:
	aicwf_sdio_release(sdiodev);
	return NULL;
}

uint8_t crc8_ponl_107(uint8_t *p_buffer, uint16_t cal_size)
{
    uint8_t i;
    uint8_t crc = 0;
    if (cal_size==0) {
        return crc;
    }
    while (cal_size--) {
        for (i = 0x80; i > 0; i /= 2) {
            if (crc & 0x80)  {
                crc *= 2;
                crc ^= 0x07; //polynomial X8 + X2 + X + 1,(0x107)
            } else {
                crc *= 2;
            }
            if ((*p_buffer) & i) {
                crc ^= 0x07;
            }
        }
        p_buffer++;
    }

    return crc;
}

#ifdef CONFIG_WIFI_SUSPEND_FOR_LINUX
void rwnx_set_wifi_suspend(char onoff){
	int ret = 0;
	if (onoff == '0') {
		printk("%s resume \r\n", __func__);
		rwnx_send_me_set_lp_level(g_rwnx_plat->sdiodev->rwnx_hw, 0);
	}else{
		printk("%s suspend \r\n", __func__);
		rwnx_send_me_set_lp_level(g_rwnx_plat->sdiodev->rwnx_hw, 1);
		aicwf_sdio_pwr_stctl(g_rwnx_plat->sdiodev, SDIO_SLEEP_ST);
		ret = aicwf_sdio_writeb(g_rwnx_plat->sdiodev, SDIOWIFI_WAKEUP_REG, 2);
		if (ret < 0) {
			sdio_err("reg:%d write failed!\n", SDIOWIFI_WAKEUP_REG);
		}
	}
}

static ssize_t rwnx_wifi_suspend_write_proc(struct file *file,
				const char __user *buffer,
				size_t count, loff_t *pos){
	char onoff;

	if (count < 1)
		return -EINVAL;

	if (copy_from_user(&onoff, buffer, 1))
		return -EFAULT;

	rwnx_set_wifi_suspend(onoff);

	return count;
}

static const struct file_operations wifi_suspend_fops = {
	.owner		= THIS_MODULE,
	.write		= rwnx_wifi_suspend_write_proc,
};

void rwnx_init_wifi_suspend_node(void){
	struct proc_dir_entry *ent;

	wifi_suspend_node = proc_mkdir("wifi_suspend", NULL);
	if (wifi_suspend_node == NULL) {
		printk("Unable to create /proc/wifi_suspend directory");
	}

	ent = proc_create("suspend", 0660, wifi_suspend_node, &wifi_suspend_fops);
	if (ent == NULL) {
		printk("Unable to create /proc/wifi_suspend/suspend");
	}
}

void rwnx_deinit_wifi_suspend_node(void){
	remove_proc_entry("suspend", wifi_suspend_node);
	remove_proc_entry("wifi_suspend", 0);
}
#endif//CONFIG_WIFI_SUSPEND_FOR_LINUX

