/***********************************************************************************************
****函数名:init_marvell_driver
****描述:初始化marvell驱动程序，关联配置信息存放于marvel_mode等中
****参数:无
****返回:0:失败 其他:struct lbs_private *
***********************************************************************************************/
struct lbs_private * init_marvell_driver(void)
{
struct mmc_host *host;
struct mmc_card *card;
struct sdio_func *func;
struct lbs_private *priv;
MAR_POW(1);//断开模块电源为sdio枚举做准备
host=stm32_probe();
MAR_POW(0);//上电模块电源，sdio正常复位
mmc_rescan(host);
printk("init marvel driver ok!\n");
card=host->card;//取出card
func=card->sdio_func[0];//取出第一个func
if(func){
priv=(struct lbs_private *)sdio_bus_probe(func);
if(priv){
printk("device probe success!\n");
return priv;
}
else
printk("device probe failed!\n");
}
else
printk("cann't find a function device!\n");
return 0;
}
/**
* mmc_resume_host - resume a previously suspended host
* @host: mmc host
*/
int mmc_resume_host(struct mmc_host *host)
{
printk(" mmc_resume_host ... \n");
mmc_rescan(&host->detect.work);
return 0;
}
void mmc_start_host(struct mmc_host *host)
{
mmc_power_off(host);
if (host->caps & MMC_CAP_BOOT_ONTHEFLY)
mmc_rescan(&host->detect.work);
else
mmc_detect_change(host, 0);
}
/*
* @brief try to scan device and mount FATFS.
* @param dev_type:
* type of the device,like SD card
* @param dev_id:
* the ID of the device.
* @retval 0 if mount success or other if failed.
*/
static int fs_ctrl_mount(enum fs_mnt_dev_type dev_type, uint32_t dev_id)
{
struct mmc_card *card;
FRESULT fs_ret;
int mmc_ret;
int ret = -1;
if (mmc_card_create(dev_id) != 0) {
FS_ERROR("card create fail\n");
goto out;
}
card = mmc_card_open(dev_id);
if (card == NULL) {
FS_ERROR("card open fail\n");
goto err_card;
}
if (!mmc_card_present(card)) {
mmc_ret = mmc_rescan(card, 0);
if (mmc_ret != 0) {
FS_ERROR("scan fail\n");
mmc_card_close(dev_id);
goto err_card;
} else {
FS_INFO("sd card init\n");
}
}
mmc_card_close(dev_id);
if (fs_ctrl.fs == NULL) {
FATFS *fs = malloc(sizeof(FATFS));
if (fs == NULL) {
FS_ERROR("no mem\n");
goto err_fs;
}
fs_ret = f_mount(fs, "", 0);
if (fs_ret != FR_OK) {
FS_ERROR("mount fail ret:%d\n", fs_ret);
free(fs);
goto err_fs;
} else {
FS_INFO("mount success\n");
fs_ctrl.fs = fs;
}
}
ret = 0;
goto out;
err_fs:
if (mmc_card_present(card))
mmc_card_deinit(card);
err_card:
mmc_card_delete(dev_id, 0);
out:
if (ret == 0) {
fs_ctrl.mount_status = FS_MNT_STATUS_MOUNT_OK;
} else {
fs_ctrl.mount_status = FS_MNT_STATUS_MOUNT_FAIL;
}
return ret;
}
