Staging: Merge ENE UB6250 SD card codes from keucr to drivers/usb/storage

The usb portion of this driver can now go into drivers/usb/storage.
This leaves the non-usb portion of the code still in staging.

Signed-off-by: Huajun Li <huajun.li.lee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 807 insertions, 0 deletions

diff --git a/drivers/usb/storage/ene_ub6250.c b/drivers/usb/storage/ene_ub6250.c
new file mode 100644
index 000000000000..058c5d5f1c1e
--- /dev/null
+++ b/drivers/usb/storage/ene_ub6250.c
@@ -0,0 +1,807 @@
+/*
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/jiffies.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+
+#include <linux/firmware.h>
+
+#include "usb.h"
+#include "transport.h"
+#include "protocol.h"
+#include "debug.h"
+
+MODULE_DESCRIPTION("Driver for ENE UB6250 reader");
+MODULE_LICENSE("GPL");
+
+
+/*
+ * The table of devices
+ */
+#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
+		    vendorName, productName, useProtocol, useTransport, \
+		    initFunction, flags) \
+{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
+	.driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+
+struct usb_device_id ene_ub6250_usb_ids[] = {
+#	include "unusual_ene_ub6250.h"
+	{ }		/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, ene_ub6250_usb_ids);
+
+#undef UNUSUAL_DEV
+
+/*
+ * The flags table
+ */
+#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
+		    vendor_name, product_name, use_protocol, use_transport, \
+		    init_function, Flags) \
+{ \
+	.vendorName = vendor_name,	\
+	.productName = product_name,	\
+	.useProtocol = use_protocol,	\
+	.useTransport = use_transport,	\
+	.initFunction = init_function,	\
+}
+
+static struct us_unusual_dev ene_ub6250_unusual_dev_list[] = {
+#	include "unusual_ene_ub6250.h"
+	{ }		/* Terminating entry */
+};
+
+#undef UNUSUAL_DEV
+
+
+
+/* ENE bin code len */
+#define ENE_BIN_CODE_LEN    0x800
+/* EnE HW Register */
+#define REG_CARD_STATUS     0xFF83
+#define REG_HW_TRAP1        0xFF89
+
+/* SRB Status */
+#define SS_SUCCESS                  0x00      /* No Sense */
+#define SS_NOT_READY                0x02
+#define SS_MEDIUM_ERR               0x03
+#define SS_HW_ERR                   0x04
+#define SS_ILLEGAL_REQUEST          0x05
+#define SS_UNIT_ATTENTION           0x06
+
+/* ENE Load FW Pattern */
+#define SD_INIT1_PATTERN   1
+#define SD_INIT2_PATTERN   2
+#define SD_RW_PATTERN      3
+#define MS_INIT_PATTERN    4
+#define MSP_RW_PATTERN     5
+#define MS_RW_PATTERN      6
+#define SM_INIT_PATTERN    7
+#define SM_RW_PATTERN      8
+
+#define FDIR_WRITE         0
+#define FDIR_READ          1
+
+
+struct SD_STATUS {
+	u8    Insert:1;
+	u8    Ready:1;
+	u8    MediaChange:1;
+	u8    IsMMC:1;
+	u8    HiCapacity:1;
+	u8    HiSpeed:1;
+	u8    WtP:1;
+	u8    Reserved:1;
+};
+
+struct MS_STATUS {
+	u8    Insert:1;
+	u8    Ready:1;
+	u8    MediaChange:1;
+	u8    IsMSPro:1;
+	u8    IsMSPHG:1;
+	u8    Reserved1:1;
+	u8    WtP:1;
+	u8    Reserved2:1;
+};
+
+struct SM_STATUS {
+	u8    Insert:1;
+	u8    Ready:1;
+	u8    MediaChange:1;
+	u8    Reserved:3;
+	u8    WtP:1;
+	u8    IsMS:1;
+};
+
+
+/* SD Block Length */
+/* 2^9 = 512 Bytes, The HW maximum read/write data length */
+#define SD_BLOCK_LEN  9
+
+struct ene_ub6250_info {
+	/* for 6250 code */
+	struct SD_STATUS	SD_Status;
+	struct MS_STATUS	MS_Status;
+	struct SM_STATUS	SM_Status;
+
+	/* ----- SD Control Data ---------------- */
+	/*SD_REGISTER SD_Regs; */
+	u16		SD_Block_Mult;
+	u8		SD_READ_BL_LEN;
+	u16		SD_C_SIZE;
+	u8		SD_C_SIZE_MULT;
+
+	/* SD/MMC New spec. */
+	u8		SD_SPEC_VER;
+	u8		SD_CSD_VER;
+	u8		SD20_HIGH_CAPACITY;
+	u32		HC_C_SIZE;
+	u8		MMC_SPEC_VER;
+	u8		MMC_BusWidth;
+	u8		MMC_HIGH_CAPACITY;
+
+	/*----- MS Control Data ---------------- */
+	bool		MS_SWWP;
+	u32		MSP_TotalBlock;
+	/*MS_LibControl       MS_Lib;*/
+	bool		MS_IsRWPage;
+	u16		MS_Model;
+
+	/*----- SM Control Data ---------------- */
+	u8		SM_DeviceID;
+	u8		SM_CardID;
+
+	unsigned char	*testbuf;
+	u8		BIN_FLAG;
+	u32		bl_num;
+	int		SrbStatus;
+
+	/*------Power Managerment ---------------*/
+	bool		Power_IsResum;
+};
+
+static int ene_sd_init(struct us_data *us);
+static int ene_load_bincode(struct us_data *us, unsigned char flag);
+
+static void ene_ub6250_info_destructor(void *extra)
+{
+	if (!extra)
+		return;
+}
+
+static int ene_send_scsi_cmd(struct us_data *us, u8 fDir, void *buf, int use_sg)
+{
+	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf;
+
+	int result;
+	unsigned int residue;
+	unsigned int cswlen = 0, partial = 0;
+	unsigned int transfer_length = bcb->DataTransferLength;
+
+	/* US_DEBUGP("transport --- ene_send_scsi_cmd\n"); */
+	/* send cmd to out endpoint */
+	result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
+					    bcb, US_BULK_CB_WRAP_LEN, NULL);
+	if (result != USB_STOR_XFER_GOOD) {
+		US_DEBUGP("send cmd to out endpoint fail ---\n");
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	if (buf) {
+		unsigned int pipe = fDir;
+
+		if (fDir  == FDIR_READ)
+			pipe = us->recv_bulk_pipe;
+		else
+			pipe = us->send_bulk_pipe;
+
+		/* Bulk */
+		if (use_sg) {
+			result = usb_stor_bulk_srb(us, pipe, us->srb);
+		} else {
+			result = usb_stor_bulk_transfer_sg(us, pipe, buf,
+						transfer_length, 0, &partial);
+		}
+		if (result != USB_STOR_XFER_GOOD) {
+			US_DEBUGP("data transfer fail ---\n");
+			return USB_STOR_TRANSPORT_ERROR;
+		}
+	}
+
+	/* Get CSW for device status */
+	result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, bcs,
+					    US_BULK_CS_WRAP_LEN, &cswlen);
+
+	if (result == USB_STOR_XFER_SHORT && cswlen == 0) {
+		US_DEBUGP("Received 0-length CSW; retrying...\n");
+		result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
+					    bcs, US_BULK_CS_WRAP_LEN, &cswlen);
+	}
+
+	if (result == USB_STOR_XFER_STALLED) {
+		/* get the status again */
+		US_DEBUGP("Attempting to get CSW (2nd try)...\n");
+		result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
+						bcs, US_BULK_CS_WRAP_LEN, NULL);
+	}
+
+	if (result != USB_STOR_XFER_GOOD)
+		return USB_STOR_TRANSPORT_ERROR;
+
+	/* check bulk status */
+	residue = le32_to_cpu(bcs->Residue);
+
+	/* try to compute the actual residue, based on how much data
+	 * was really transferred and what the device tells us */
+	if (residue && !(us->fflags & US_FL_IGNORE_RESIDUE)) {
+		residue = min(residue, transfer_length);
+		if (us->srb != NULL)
+			scsi_set_resid(us->srb, max(scsi_get_resid(us->srb),
+								(int)residue));
+	}
+
+	if (bcs->Status != US_BULK_STAT_OK)
+		return USB_STOR_TRANSPORT_ERROR;
+
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+static int sd_scsi_test_unit_ready(struct us_data *us, struct scsi_cmnd *srb)
+{
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+
+	if (info->SD_Status.Insert && info->SD_Status.Ready)
+		return USB_STOR_TRANSPORT_GOOD;
+	else {
+		ene_sd_init(us);
+		return USB_STOR_TRANSPORT_GOOD;
+	}
+
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+static int sd_scsi_inquiry(struct us_data *us, struct scsi_cmnd *srb)
+{
+	unsigned char data_ptr[36] = {
+		0x00, 0x80, 0x02, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x55,
+		0x53, 0x42, 0x32, 0x2E, 0x30, 0x20, 0x20, 0x43, 0x61,
+		0x72, 0x64, 0x52, 0x65, 0x61, 0x64, 0x65, 0x72, 0x20,
+		0x20, 0x20, 0x20, 0x20, 0x20, 0x30, 0x31, 0x30, 0x30 };
+
+	usb_stor_set_xfer_buf(data_ptr, 36, srb);
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+static int sd_scsi_mode_sense(struct us_data *us, struct scsi_cmnd *srb)
+{
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+	unsigned char mediaNoWP[12] = {
+		0x0b, 0x00, 0x00, 0x08, 0x00, 0x00,
+		0x71, 0xc0, 0x00, 0x00, 0x02, 0x00 };
+	unsigned char mediaWP[12]   = {
+		0x0b, 0x00, 0x80, 0x08, 0x00, 0x00,
+		0x71, 0xc0, 0x00, 0x00, 0x02, 0x00 };
+
+	if (info->SD_Status.WtP)
+		usb_stor_set_xfer_buf(mediaWP, 12, srb);
+	else
+		usb_stor_set_xfer_buf(mediaNoWP, 12, srb);
+
+
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+static int sd_scsi_read_capacity(struct us_data *us, struct scsi_cmnd *srb)
+{
+	u32   bl_num;
+	u16    bl_len;
+	unsigned int offset = 0;
+	unsigned char    buf[8];
+	struct scatterlist *sg = NULL;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+
+	US_DEBUGP("sd_scsi_read_capacity\n");
+	if (info->SD_Status.HiCapacity) {
+		bl_len = 0x200;
+		if (info->SD_Status.IsMMC)
+			bl_num = info->HC_C_SIZE-1;
+		else
+			bl_num = (info->HC_C_SIZE + 1) * 1024 - 1;
+	} else {
+		bl_len = 1<<(info->SD_READ_BL_LEN);
+		bl_num = info->SD_Block_Mult * (info->SD_C_SIZE + 1)
+				* (1 << (info->SD_C_SIZE_MULT + 2)) - 1;
+	}
+	info->bl_num = bl_num;
+	US_DEBUGP("bl_len = %x\n", bl_len);
+	US_DEBUGP("bl_num = %x\n", bl_num);
+
+	/*srb->request_bufflen = 8; */
+	buf[0] = (bl_num >> 24) & 0xff;
+	buf[1] = (bl_num >> 16) & 0xff;
+	buf[2] = (bl_num >> 8) & 0xff;
+	buf[3] = (bl_num >> 0) & 0xff;
+	buf[4] = (bl_len >> 24) & 0xff;
+	buf[5] = (bl_len >> 16) & 0xff;
+	buf[6] = (bl_len >> 8) & 0xff;
+	buf[7] = (bl_len >> 0) & 0xff;
+
+	usb_stor_access_xfer_buf(buf, 8, srb, &sg, &offset, TO_XFER_BUF);
+
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+static int sd_scsi_read(struct us_data *us, struct scsi_cmnd *srb)
+{
+	int result;
+	unsigned char *cdb = srb->cmnd;
+	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+
+	u32 bn = ((cdb[2] << 24) & 0xff000000) | ((cdb[3] << 16) & 0x00ff0000) |
+		 ((cdb[4] << 8) & 0x0000ff00) | ((cdb[5] << 0) & 0x000000ff);
+	u16 blen = ((cdb[7] << 8) & 0xff00) | ((cdb[8] << 0) & 0x00ff);
+	u32 bnByte = bn * 0x200;
+	u32 blenByte = blen * 0x200;
+
+	if (bn > info->bl_num)
+		return USB_STOR_TRANSPORT_ERROR;
+
+	result = ene_load_bincode(us, SD_RW_PATTERN);
+	if (result != USB_STOR_XFER_GOOD) {
+		US_DEBUGP("Load SD RW pattern Fail !!\n");
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	if (info->SD_Status.HiCapacity)
+		bnByte = bn;
+
+	/* set up the command wrapper */
+	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
+	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
+	bcb->DataTransferLength = blenByte;
+	bcb->Flags  = 0x80;
+	bcb->CDB[0] = 0xF1;
+	bcb->CDB[5] = (unsigned char)(bnByte);
+	bcb->CDB[4] = (unsigned char)(bnByte>>8);
+	bcb->CDB[3] = (unsigned char)(bnByte>>16);
+	bcb->CDB[2] = (unsigned char)(bnByte>>24);
+
+	result = ene_send_scsi_cmd(us, FDIR_READ, scsi_sglist(srb), 1);
+	return result;
+}
+
+static int sd_scsi_write(struct us_data *us, struct scsi_cmnd *srb)
+{
+	int result;
+	unsigned char *cdb = srb->cmnd;
+	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+
+	u32 bn = ((cdb[2] << 24) & 0xff000000) | ((cdb[3] << 16) & 0x00ff0000) |
+		 ((cdb[4] << 8) & 0x0000ff00) | ((cdb[5] << 0) & 0x000000ff);
+	u16 blen = ((cdb[7] << 8) & 0xff00) | ((cdb[8] << 0) & 0x00ff);
+	u32 bnByte = bn * 0x200;
+	u32 blenByte = blen * 0x200;
+
+	if (bn > info->bl_num)
+		return USB_STOR_TRANSPORT_ERROR;
+
+	result = ene_load_bincode(us, SD_RW_PATTERN);
+	if (result != USB_STOR_XFER_GOOD) {
+		US_DEBUGP("Load SD RW pattern Fail !!\n");
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	if (info->SD_Status.HiCapacity)
+		bnByte = bn;
+
+	/* set up the command wrapper */
+	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
+	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
+	bcb->DataTransferLength = blenByte;
+	bcb->Flags  = 0x00;
+	bcb->CDB[0] = 0xF0;
+	bcb->CDB[5] = (unsigned char)(bnByte);
+	bcb->CDB[4] = (unsigned char)(bnByte>>8);
+	bcb->CDB[3] = (unsigned char)(bnByte>>16);
+	bcb->CDB[2] = (unsigned char)(bnByte>>24);
+
+	result = ene_send_scsi_cmd(us, FDIR_WRITE, scsi_sglist(srb), 1);
+	return result;
+}
+
+static int ene_get_card_type(struct us_data *us, u16 index, void *buf)
+{
+	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	int result;
+
+	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
+	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
+	bcb->DataTransferLength	= 0x01;
+	bcb->Flags			= 0x80;
+	bcb->CDB[0]			= 0xED;
+	bcb->CDB[2]			= (unsigned char)(index>>8);
+	bcb->CDB[3]			= (unsigned char)index;
+
+	result = ene_send_scsi_cmd(us, FDIR_READ, buf, 0);
+	return result;
+}
+
+static int ene_get_card_status(struct us_data *us, u8 *buf)
+{
+	u16 tmpreg;
+	u32 reg4b;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+
+	/*US_DEBUGP("transport --- ENE_ReadSDReg\n");*/
+	reg4b = *(u32 *)&buf[0x18];
+	info->SD_READ_BL_LEN = (u8)((reg4b >> 8) & 0x0f);
+
+	tmpreg = (u16) reg4b;
+	reg4b = *(u32 *)(&buf[0x14]);
+	if (info->SD_Status.HiCapacity && !info->SD_Status.IsMMC)
+		info->HC_C_SIZE = (reg4b >> 8) & 0x3fffff;
+
+	info->SD_C_SIZE = ((tmpreg & 0x03) << 10) | (u16)(reg4b >> 22);
+	info->SD_C_SIZE_MULT = (u8)(reg4b >> 7)  & 0x07;
+	if (info->SD_Status.HiCapacity && info->SD_Status.IsMMC)
+		info->HC_C_SIZE = *(u32 *)(&buf[0x100]);
+
+	if (info->SD_READ_BL_LEN > SD_BLOCK_LEN) {
+		info->SD_Block_Mult = 1 << (info->SD_READ_BL_LEN-SD_BLOCK_LEN);
+		info->SD_READ_BL_LEN = SD_BLOCK_LEN;
+	} else {
+		info->SD_Block_Mult = 1;
+	}
+
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+static int ene_load_bincode(struct us_data *us, unsigned char flag)
+{
+	int err;
+	char *fw_name = NULL;
+	unsigned char *buf = NULL;
+	const struct firmware *sd_fw = NULL;
+	int result = USB_STOR_TRANSPORT_ERROR;
+	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+
+	if (info->BIN_FLAG == flag)
+		return USB_STOR_TRANSPORT_GOOD;
+
+	buf = kmalloc(ENE_BIN_CODE_LEN, GFP_KERNEL);
+	if (buf == NULL)
+		return USB_STOR_TRANSPORT_ERROR;
+
+	switch (flag) {
+	/* For SD */
+	case SD_INIT1_PATTERN:
+		US_DEBUGP("SD_INIT1_PATTERN\n");
+		fw_name = "ene-ub6250/sd_init1.bin";
+		break;
+	case SD_INIT2_PATTERN:
+		US_DEBUGP("SD_INIT2_PATTERN\n");
+		fw_name = "ene-ub6250/sd_init2.bin";
+		break;
+	case SD_RW_PATTERN:
+		US_DEBUGP("SD_RDWR_PATTERN\n");
+		fw_name = "ene-ub6250/sd_rdwr.bin";
+		break;
+	default:
+		US_DEBUGP("----------- Unknown PATTERN ----------\n");
+		goto nofw;
+	}
+
+	err = request_firmware(&sd_fw, fw_name, &us->pusb_dev->dev);
+	if (err) {
+		US_DEBUGP("load firmware %s failed\n", fw_name);
+		goto nofw;
+	}
+	buf = kmalloc(sd_fw->size, GFP_KERNEL);
+	if (buf == NULL) {
+		US_DEBUGP("Malloc memory for fireware failed!\n");
+		goto nofw;
+	}
+	memcpy(buf, sd_fw->data, sd_fw->size);
+	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
+	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
+	bcb->DataTransferLength = sd_fw->size;
+	bcb->Flags = 0x00;
+	bcb->CDB[0] = 0xEF;
+
+	result = ene_send_scsi_cmd(us, FDIR_WRITE, buf, 0);
+	info->BIN_FLAG = flag;
+	kfree(buf);
+
+nofw:
+	if (sd_fw != NULL) {
+		release_firmware(sd_fw);
+		sd_fw = NULL;
+	}
+
+	return result;
+}
+
+static int ene_sd_init(struct us_data *us)
+{
+	int result;
+	u8  buf[0x200];
+	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
+
+	US_DEBUGP("transport --- ENE_SDInit\n");
+	/* SD Init Part-1 */
+	result = ene_load_bincode(us, SD_INIT1_PATTERN);
+	if (result != USB_STOR_XFER_GOOD) {
+		US_DEBUGP("Load SD Init Code Part-1 Fail !!\n");
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
+	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
+	bcb->Flags = 0x80;
+	bcb->CDB[0] = 0xF2;
+
+	result = ene_send_scsi_cmd(us, FDIR_READ, NULL, 0);
+	if (result != USB_STOR_XFER_GOOD) {
+		US_DEBUGP("Exection SD Init Code Fail !!\n");
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	/* SD Init Part-2 */
+	result = ene_load_bincode(us, SD_INIT2_PATTERN);
+	if (result != USB_STOR_XFER_GOOD) {
+		US_DEBUGP("Load SD Init Code Part-2 Fail !!\n");
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
+	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
+	bcb->DataTransferLength = 0x200;
+	bcb->Flags              = 0x80;
+	bcb->CDB[0]             = 0xF1;
+
+	result = ene_send_scsi_cmd(us, FDIR_READ, &buf, 0);
+	if (result != USB_STOR_XFER_GOOD) {
+		US_DEBUGP("Exection SD Init Code Fail !!\n");
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	info->SD_Status =  *(struct SD_STATUS *)&buf[0];
+	if (info->SD_Status.Insert && info->SD_Status.Ready) {
+		ene_get_card_status(us, (unsigned char *)&buf);
+		US_DEBUGP("Insert     = %x\n", info->SD_Status.Insert);
+		US_DEBUGP("Ready      = %x\n", info->SD_Status.Ready);
+		US_DEBUGP("IsMMC      = %x\n", info->SD_Status.IsMMC);
+		US_DEBUGP("HiCapacity = %x\n", info->SD_Status.HiCapacity);
+		US_DEBUGP("HiSpeed    = %x\n", info->SD_Status.HiSpeed);
+		US_DEBUGP("WtP        = %x\n", info->SD_Status.WtP);
+	} else {
+		US_DEBUGP("SD Card Not Ready --- %x\n", buf[0]);
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+
+static int ene_init(struct us_data *us)
+{
+	int result;
+	u8  misc_reg03 = 0;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
+
+	result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
+	if (result != USB_STOR_XFER_GOOD)
+		return USB_STOR_TRANSPORT_ERROR;
+
+	if (misc_reg03 & 0x01) {
+		if (!info->SD_Status.Ready) {
+			result = ene_sd_init(us);
+			if (result != USB_STOR_XFER_GOOD)
+				return USB_STOR_TRANSPORT_ERROR;
+		}
+	}
+
+	return result;
+}
+
+/*----- sd_scsi_irp() ---------*/
+static int sd_scsi_irp(struct us_data *us, struct scsi_cmnd *srb)
+{
+	int    result;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *)us->extra;
+
+	info->SrbStatus = SS_SUCCESS;
+	switch (srb->cmnd[0]) {
+	case TEST_UNIT_READY:
+		result = sd_scsi_test_unit_ready(us, srb);
+		break; /* 0x00 */
+	case INQUIRY:
+		result = sd_scsi_inquiry(us, srb);
+		break; /* 0x12 */
+	case MODE_SENSE:
+		result = sd_scsi_mode_sense(us, srb);
+		break; /* 0x1A */
+	/*
+	case START_STOP:
+		result = SD_SCSI_Start_Stop(us, srb);
+		break; //0x1B
+	*/
+	case READ_CAPACITY:
+		result = sd_scsi_read_capacity(us, srb);
+		break; /* 0x25 */
+	case READ_10:
+		result = sd_scsi_read(us, srb);
+		break; /* 0x28 */
+	case WRITE_10:
+		result = sd_scsi_write(us, srb);
+		break; /* 0x2A */
+	default:
+		info->SrbStatus = SS_ILLEGAL_REQUEST;
+		result = USB_STOR_TRANSPORT_FAILED;
+		break;
+	}
+	return result;
+}
+
+static int ene_transport(struct scsi_cmnd *srb, struct us_data *us)
+{
+	int result = 0;
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
+
+	/*US_DEBUG(usb_stor_show_command(srb)); */
+	scsi_set_resid(srb, 0);
+	if (unlikely(!info->SD_Status.Ready))
+		result = ene_init(us);
+	else
+		result = sd_scsi_irp(us, srb);
+
+	return 0;
+}
+
+
+static int ene_ub6250_probe(struct usb_interface *intf,
+			 const struct usb_device_id *id)
+{
+	int result;
+	u8  misc_reg03 = 0;
+	struct us_data *us;
+
+	result = usb_stor_probe1(&us, intf, id,
+		   (id - ene_ub6250_usb_ids) + ene_ub6250_unusual_dev_list);
+	if (result)
+		return result;
+
+	/* FIXME: where should the code alloc extra buf ? */
+	if (!us->extra) {
+		us->extra = kzalloc(sizeof(struct ene_ub6250_info), GFP_KERNEL);
+		if (!us->extra)
+			return -ENOMEM;
+		us->extra_destructor = ene_ub6250_info_destructor;
+	}
+
+	us->transport_name = "ene_ub6250";
+	us->transport = ene_transport;
+	us->max_lun = 0;
+
+	result = usb_stor_probe2(us);
+	if (result)
+		return result;
+
+	/* probe card type */
+	result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
+	if (result != USB_STOR_XFER_GOOD) {
+		usb_stor_disconnect(intf);
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	if (!(misc_reg03 & 0x01)) {
+		result = -ENODEV;
+		printk(KERN_NOTICE "ums_eneub6250: The driver only supports SD\
+		card. To use SM/MS card, please build driver/stagging/keucr\n");
+		usb_stor_disconnect(intf);
+	}
+
+	return result;
+}
+
+
+#ifdef CONFIG_PM
+
+static int ene_ub6250_resume(struct usb_interface *iface)
+{
+	u8 tmp = 0;
+	struct us_data *us = usb_get_intfdata(iface);
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
+
+	mutex_lock(&us->dev_mutex);
+
+	US_DEBUGP("%s\n", __func__);
+	if (us->suspend_resume_hook)
+		(us->suspend_resume_hook)(us, US_RESUME);
+
+	mutex_unlock(&us->dev_mutex);
+
+	info->Power_IsResum = true;
+	/*info->SD_Status.Ready = 0; */
+	info->SD_Status = *(struct SD_STATUS *)&tmp;
+	info->MS_Status = *(struct MS_STATUS *)&tmp;
+	info->SM_Status = *(struct SM_STATUS *)&tmp;
+
+	return 0;
+}
+
+static int ene_ub6250_reset_resume(struct usb_interface *iface)
+{
+	u8 tmp = 0;
+	struct us_data *us = usb_get_intfdata(iface);
+	struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
+	US_DEBUGP("%s\n", __func__);
+	/* Report the reset to the SCSI core */
+	usb_stor_reset_resume(iface);
+
+	/* FIXME: Notify the subdrivers that they need to reinitialize
+	 * the device */
+	info->Power_IsResum = true;
+	/*info->SD_Status.Ready = 0; */
+	info->SD_Status = *(struct SD_STATUS *)&tmp;
+	info->MS_Status = *(struct MS_STATUS *)&tmp;
+	info->SM_Status = *(struct SM_STATUS *)&tmp;
+
+	return 0;
+}
+
+#else
+
+#define ene_ub6250_resume		NULL
+#define ene_ub6250_reset_resume		NULL
+
+#endif
+
+static struct usb_driver ene_ub6250_driver = {
+	.name =		"ums_eneub6250",
+	.probe =	ene_ub6250_probe,
+	.disconnect =	usb_stor_disconnect,
+	.suspend =	usb_stor_suspend,
+	.resume =	ene_ub6250_resume,
+	.reset_resume =	ene_ub6250_reset_resume,
+	.pre_reset =	usb_stor_pre_reset,
+	.post_reset =	usb_stor_post_reset,
+	.id_table =	ene_ub6250_usb_ids,
+	.soft_unbind =	1,
+};
+
+static int __init ene_ub6250_init(void)
+{
+	return usb_register(&ene_ub6250_driver);
+}
+
+static void __exit ene_ub6250_exit(void)
+{
+	usb_deregister(&ene_ub6250_driver);
+}
+
+module_init(ene_ub6250_init);
+module_exit(ene_ub6250_exit);