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-rw-r--r--README7
-rw-r--r--board/samsung/common/Makefile1
-rw-r--r--board/samsung/common/ums.c76
-rw-r--r--board/samsung/trats/trats.c62
-rw-r--r--common/cmd_usb_mass_storage.c51
-rw-r--r--drivers/dfu/dfu.c3
-rw-r--r--drivers/dfu/dfu_nand.c1
-rw-r--r--drivers/usb/gadget/f_mass_storage.c67
-rw-r--r--drivers/usb/gadget/g_dnl.c20
-rw-r--r--drivers/usb/gadget/storage_common.c27
-rw-r--r--drivers/usb/host/ohci-hcd.c2
-rw-r--r--include/configs/trats.h2
-rw-r--r--include/g_dnl.h1
-rw-r--r--include/usb.h10
-rw-r--r--include/usb_mass_storage.h33
15 files changed, 205 insertions, 158 deletions
diff --git a/README b/README
index 8e19aebb9c..a70475fb05 100644
--- a/README
+++ b/README
@@ -1367,6 +1367,13 @@ The following options need to be configured:
for your device
- CONFIG_USBD_PRODUCTID 0xFFFF
+ Some USB device drivers may need to check USB cable attachment.
+ In this case you can enable following config in BoardName.h:
+ CONFIG_USB_CABLE_CHECK
+ This enables function definition:
+ - usb_cable_connected() in include/usb.h
+ Implementation of this function is board-specific.
+
- ULPI Layer Support:
The ULPI (UTMI Low Pin (count) Interface) PHYs are supported via
the generic ULPI layer. The generic layer accesses the ULPI PHY
diff --git a/board/samsung/common/Makefile b/board/samsung/common/Makefile
index ca7032c3d1..501d9744e4 100644
--- a/board/samsung/common/Makefile
+++ b/board/samsung/common/Makefile
@@ -7,3 +7,4 @@
obj-$(CONFIG_SOFT_I2C_MULTI_BUS) += multi_i2c.o
obj-$(CONFIG_THOR_FUNCTION) += thor.o
+obj-$(CONFIG_CMD_USB_MASS_STORAGE) += ums.o
diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c
new file mode 100644
index 0000000000..dc155ad0e5
--- /dev/null
+++ b/board/samsung/common/ums.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2013 Samsung Electronics
+ * Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <usb_mass_storage.h>
+#include <part.h>
+
+static int ums_read_sector(struct ums *ums_dev,
+ ulong start, lbaint_t blkcnt, void *buf)
+{
+ block_dev_desc_t *block_dev = &ums_dev->mmc->block_dev;
+ lbaint_t blkstart = start + ums_dev->start_sector;
+ int dev_num = block_dev->dev;
+
+ return block_dev->block_read(dev_num, blkstart, blkcnt, buf);
+}
+
+static int ums_write_sector(struct ums *ums_dev,
+ ulong start, lbaint_t blkcnt, const void *buf)
+{
+ block_dev_desc_t *block_dev = &ums_dev->mmc->block_dev;
+ lbaint_t blkstart = start + ums_dev->start_sector;
+ int dev_num = block_dev->dev;
+
+ return block_dev->block_write(dev_num, blkstart, blkcnt, buf);
+}
+
+static struct ums ums_dev = {
+ .read_sector = ums_read_sector,
+ .write_sector = ums_write_sector,
+ .name = "UMS disk",
+};
+
+static struct ums *ums_disk_init(struct mmc *mmc)
+{
+ uint64_t mmc_end_sector = mmc->capacity / SECTOR_SIZE;
+ uint64_t ums_end_sector = UMS_NUM_SECTORS + UMS_START_SECTOR;
+
+ if (!mmc_end_sector) {
+ error("MMC capacity is not valid");
+ return NULL;
+ }
+
+ ums_dev.mmc = mmc;
+
+ if (ums_end_sector <= mmc_end_sector) {
+ ums_dev.start_sector = UMS_START_SECTOR;
+ if (UMS_NUM_SECTORS)
+ ums_dev.num_sectors = UMS_NUM_SECTORS;
+ else
+ ums_dev.num_sectors = mmc_end_sector - UMS_START_SECTOR;
+ } else {
+ ums_dev.num_sectors = mmc_end_sector;
+ puts("UMS: defined bad disk parameters. Using default.\n");
+ }
+
+ printf("UMS: disk start sector: %#x, count: %#x\n",
+ ums_dev.start_sector, ums_dev.num_sectors);
+
+ return &ums_dev;
+}
+
+struct ums *ums_init(unsigned int dev_num)
+{
+ struct mmc *mmc = NULL;
+
+ mmc = find_mmc_device(dev_num);
+ if (!mmc)
+ return NULL;
+
+ return ums_disk_init(mmc);
+}
diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c
index d31d511e39..7012c134fb 100644
--- a/board/samsung/trats/trats.c
+++ b/board/samsung/trats/trats.c
@@ -772,65 +772,3 @@ void init_panel_info(vidinfo_t *vid)
setenv("lcdinfo", "lcd=s6e8ax0");
}
-
-#ifdef CONFIG_USB_GADGET_MASS_STORAGE
-static int ums_read_sector(struct ums_device *ums_dev,
- ulong start, lbaint_t blkcnt, void *buf)
-{
- if (ums_dev->mmc->block_dev.block_read(ums_dev->dev_num,
- start + ums_dev->offset, blkcnt, buf) != blkcnt)
- return -1;
-
- return 0;
-}
-
-static int ums_write_sector(struct ums_device *ums_dev,
- ulong start, lbaint_t blkcnt, const void *buf)
-{
- if (ums_dev->mmc->block_dev.block_write(ums_dev->dev_num,
- start + ums_dev->offset, blkcnt, buf) != blkcnt)
- return -1;
-
- return 0;
-}
-
-static void ums_get_capacity(struct ums_device *ums_dev,
- long long int *capacity)
-{
- long long int tmp_capacity;
-
- tmp_capacity = (long long int) ((ums_dev->offset + ums_dev->part_size)
- * SECTOR_SIZE);
- *capacity = ums_dev->mmc->capacity - tmp_capacity;
-}
-
-static struct ums_board_info ums_board = {
- .read_sector = ums_read_sector,
- .write_sector = ums_write_sector,
- .get_capacity = ums_get_capacity,
- .name = "TRATS UMS disk",
- .ums_dev = {
- .mmc = NULL,
- .dev_num = 0,
- .offset = 0,
- .part_size = 0.
- },
-};
-
-struct ums_board_info *board_ums_init(unsigned int dev_num, unsigned int offset,
- unsigned int part_size)
-{
- struct mmc *mmc;
-
- mmc = find_mmc_device(dev_num);
- if (!mmc)
- return NULL;
-
- ums_board.ums_dev.mmc = mmc;
- ums_board.ums_dev.dev_num = dev_num;
- ums_board.ums_dev.offset = offset;
- ums_board.ums_dev.part_size = part_size;
-
- return &ums_board;
-}
-#endif
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c
index f583cafa35..99487f4d0f 100644
--- a/common/cmd_usb_mass_storage.c
+++ b/common/cmd_usb_mass_storage.c
@@ -5,6 +5,7 @@
* SPDX-License-Identifier: GPL-2.0+
*/
+#include <errno.h>
#include <common.h>
#include <command.h>
#include <g_dnl.h>
@@ -20,55 +21,49 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
const char *usb_controller = argv[1];
const char *mmc_devstring = argv[2];
- unsigned int dev_num = (unsigned int)(simple_strtoul(mmc_devstring,
- NULL, 0));
- if (dev_num) {
- error("Set eMMC device to 0! - e.g. ums 0");
- goto fail;
- }
+ unsigned int dev_num = simple_strtoul(mmc_devstring, NULL, 0);
+
+ struct ums *ums = ums_init(dev_num);
+ if (!ums)
+ return CMD_RET_FAILURE;
unsigned int controller_index = (unsigned int)(simple_strtoul(
usb_controller, NULL, 0));
if (board_usb_init(controller_index, USB_INIT_DEVICE)) {
error("Couldn't init USB controller.");
- goto fail;
- }
-
- struct ums_board_info *ums_info = board_ums_init(dev_num, 0, 0);
- if (!ums_info) {
- error("MMC: %d -> NOT available", dev_num);
- goto fail;
+ return CMD_RET_FAILURE;
}
- int rc = fsg_init(ums_info);
+ int rc = fsg_init(ums);
if (rc) {
error("fsg_init failed");
- goto fail;
+ return CMD_RET_FAILURE;
}
g_dnl_register("ums");
while (1) {
- /* Handle control-c and timeouts */
- if (ctrlc()) {
- error("The remote end did not respond in time.");
- goto exit;
- }
-
usb_gadget_handle_interrupts();
- /* Check if USB cable has been detached */
- if (fsg_main_thread(NULL) == EIO)
+
+ rc = fsg_main_thread(NULL);
+ if (rc) {
+ /* Check I/O error */
+ if (rc == -EIO)
+ printf("\rCheck USB cable connection\n");
+
+ /* Check CTRL+C */
+ if (rc == -EPIPE)
+ printf("\rCTRL+C - Operation aborted\n");
+
goto exit;
+ }
}
exit:
g_dnl_unregister();
- return 0;
-
-fail:
- return -1;
+ return CMD_RET_SUCCESS;
}
U_BOOT_CMD(ums, CONFIG_SYS_MAXARGS, 1, do_usb_mass_storage,
"Use the UMS [User Mass Storage]",
- "<USB_controller> <mmc_dev>"
+ "ums <USB_controller> <mmc_dev> e.g. ums 0 0"
);
diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index 4a8804e4b7..1eb92e5417 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -229,6 +229,7 @@ static int dfu_read_buffer_fill(struct dfu_entity *dfu, void *buf, int size)
dfu->crc = crc32(dfu->crc, buf, chunk);
dfu->i_buf += chunk;
dfu->b_left -= chunk;
+ dfu->r_left -= chunk;
size -= chunk;
buf += chunk;
readn += chunk;
@@ -287,7 +288,7 @@ int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
dfu->offset = 0;
dfu->i_buf_end = dfu_get_buf() + dfu_buf_size;
dfu->i_buf = dfu->i_buf_start;
- dfu->b_left = 0;
+ dfu->b_left = min(dfu_buf_size, dfu->r_left);
dfu->bad_skip = 0;
diff --git a/drivers/dfu/dfu_nand.c b/drivers/dfu/dfu_nand.c
index edbf5a97b9..2d07097e85 100644
--- a/drivers/dfu/dfu_nand.c
+++ b/drivers/dfu/dfu_nand.c
@@ -121,6 +121,7 @@ static int dfu_read_medium_nand(struct dfu_entity *dfu, u64 offset, void *buf,
switch (dfu->layout) {
case DFU_RAW_ADDR:
+ *len = dfu->data.nand.size;
ret = nand_block_read(dfu, offset, buf, len);
break;
default:
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 6ecdea3e14..b1fe8bd3a8 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -243,6 +243,7 @@
#include <config.h>
#include <malloc.h>
#include <common.h>
+#include <usb.h>
#include <linux/err.h>
#include <linux/usb/ch9.h>
@@ -441,7 +442,7 @@ static void set_bulk_out_req_length(struct fsg_common *common,
/*-------------------------------------------------------------------------*/
-struct ums_board_info *ums_info;
+struct ums *ums;
struct fsg_common *the_fsg_common;
static int fsg_set_halt(struct fsg_dev *fsg, struct usb_ep *ep)
@@ -675,6 +676,18 @@ static int sleep_thread(struct fsg_common *common)
k++;
}
+ if (k == 10) {
+ /* Handle CTRL+C */
+ if (ctrlc())
+ return -EPIPE;
+#ifdef CONFIG_USB_CABLE_CHECK
+ /* Check cable connection */
+ if (!usb_cable_connected())
+ return -EIO;
+#endif
+ k = 0;
+ }
+
usb_gadget_handle_interrupts();
}
common->thread_wakeup_needed = 0;
@@ -757,14 +770,14 @@ static int do_read(struct fsg_common *common)
}
/* Perform the read */
- nread = 0;
- rc = ums_info->read_sector(&(ums_info->ums_dev),
- file_offset / SECTOR_SIZE,
- amount / SECTOR_SIZE,
- (char __user *)bh->buf);
- if (rc)
+ rc = ums->read_sector(ums,
+ file_offset / SECTOR_SIZE,
+ amount / SECTOR_SIZE,
+ (char __user *)bh->buf);
+ if (!rc)
return -EIO;
- nread = amount;
+
+ nread = rc * SECTOR_SIZE;
VLDBG(curlun, "file read %u @ %llu -> %d\n", amount,
(unsigned long long) file_offset,
@@ -931,13 +944,13 @@ static int do_write(struct fsg_common *common)
amount = bh->outreq->actual;
/* Perform the write */
- rc = ums_info->write_sector(&(ums_info->ums_dev),
+ rc = ums->write_sector(ums,
file_offset / SECTOR_SIZE,
amount / SECTOR_SIZE,
(char __user *)bh->buf);
- if (rc)
+ if (!rc)
return -EIO;
- nwritten = amount;
+ nwritten = rc * SECTOR_SIZE;
VLDBG(curlun, "file write %u @ %llu -> %d\n", amount,
(unsigned long long) file_offset,
@@ -959,6 +972,8 @@ static int do_write(struct fsg_common *common)
/* If an error occurred, report it and its position */
if (nwritten < amount) {
+ printf("nwritten:%d amount:%d\n", nwritten,
+ amount);
curlun->sense_data = SS_WRITE_ERROR;
curlun->info_valid = 1;
break;
@@ -1045,14 +1060,13 @@ static int do_verify(struct fsg_common *common)
}
/* Perform the read */
- nread = 0;
- rc = ums_info->read_sector(&(ums_info->ums_dev),
- file_offset / SECTOR_SIZE,
- amount / SECTOR_SIZE,
- (char __user *)bh->buf);
- if (rc)
+ rc = ums->read_sector(ums,
+ file_offset / SECTOR_SIZE,
+ amount / SECTOR_SIZE,
+ (char __user *)bh->buf);
+ if (!rc)
return -EIO;
- nread = amount;
+ nread = rc * SECTOR_SIZE;
VLDBG(curlun, "file read %u @ %llu -> %d\n", amount,
(unsigned long long) file_offset,
@@ -1100,7 +1114,7 @@ static int do_inquiry(struct fsg_common *common, struct fsg_buffhd *bh)
buf[4] = 31; /* Additional length */
/* No special options */
sprintf((char *) (buf + 8), "%-8s%-16s%04x", (char*) vendor_id ,
- ums_info->name, (u16) 0xffff);
+ ums->name, (u16) 0xffff);
return 36;
}
@@ -2386,6 +2400,7 @@ static void handle_exception(struct fsg_common *common)
int fsg_main_thread(void *common_)
{
+ int ret;
struct fsg_common *common = the_fsg_common;
/* The main loop */
do {
@@ -2395,12 +2410,16 @@ int fsg_main_thread(void *common_)
}
if (!common->running) {
- sleep_thread(common);
+ ret = sleep_thread(common);
+ if (ret)
+ return ret;
+
continue;
}
- if (get_next_command(common))
- continue;
+ ret = get_next_command(common);
+ if (ret)
+ return ret;
if (!exception_in_progress(common))
common->state = FSG_STATE_DATA_PHASE;
@@ -2753,9 +2772,9 @@ int fsg_add(struct usb_configuration *c)
return fsg_bind_config(c->cdev, c, fsg_common);
}
-int fsg_init(struct ums_board_info *ums)
+int fsg_init(struct ums *ums_dev)
{
- ums_info = ums;
+ ums = ums_dev;
return 0;
}
diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c
index 43f413aabf..8dc3d9f8a8 100644
--- a/drivers/usb/gadget/g_dnl.c
+++ b/drivers/usb/gadget/g_dnl.c
@@ -33,6 +33,9 @@
#define STRING_PRODUCT 2
/* Index of String Descriptor describing this configuration */
#define STRING_USBDOWN 2
+/* Index of String serial */
+#define STRING_SERIAL 3
+#define MAX_STRING_SERIAL 32
/* Number of supported configurations */
#define CONFIGURATION_NUMBER 1
@@ -40,8 +43,16 @@
static const char shortname[] = "usb_dnl_";
static const char product[] = "USB download gadget";
+static char g_dnl_serial[MAX_STRING_SERIAL];
static const char manufacturer[] = CONFIG_G_DNL_MANUFACTURER;
+void g_dnl_set_serialnumber(char *s)
+{
+ memset(g_dnl_serial, 0, MAX_STRING_SERIAL);
+ if (strlen(s) < MAX_STRING_SERIAL)
+ strncpy(g_dnl_serial, s, strlen(s));
+}
+
static struct usb_device_descriptor device_desc = {
.bLength = sizeof device_desc,
.bDescriptorType = USB_DT_DEVICE,
@@ -53,6 +64,7 @@ static struct usb_device_descriptor device_desc = {
.idVendor = __constant_cpu_to_le16(CONFIG_G_DNL_VENDOR_NUM),
.idProduct = __constant_cpu_to_le16(CONFIG_G_DNL_PRODUCT_NUM),
.iProduct = STRING_PRODUCT,
+ .iSerialNumber = STRING_SERIAL,
.bNumConfigurations = 1,
};
@@ -63,6 +75,7 @@ static struct usb_device_descriptor device_desc = {
static struct usb_string g_dnl_string_defs[] = {
{.s = manufacturer},
{.s = product},
+ {.s = g_dnl_serial},
{ } /* end of list */
};
@@ -156,6 +169,13 @@ static int g_dnl_bind(struct usb_composite_dev *cdev)
g_dnl_string_defs[1].id = id;
device_desc.iProduct = id;
+ id = usb_string_id(cdev);
+ if (id < 0)
+ return id;
+
+ g_dnl_string_defs[2].id = id;
+ device_desc.iSerialNumber = id;
+
g_dnl_bind_fixup(&device_desc, cdev->driver->name);
ret = g_dnl_config_register(cdev);
if (ret)
diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index 866e7c7b8a..02803df23c 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -275,7 +275,6 @@ struct rw_semaphore { int i; };
#define ETOOSMALL 525
#include <usb_mass_storage.h>
-extern struct ums_board_info *ums_info;
/*-------------------------------------------------------------------------*/
@@ -573,36 +572,16 @@ static struct usb_gadget_strings fsg_stringtab = {
static int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
{
int ro;
- int rc = -EINVAL;
- loff_t size;
- loff_t num_sectors;
- loff_t min_sectors;
/* R/W if we can, R/O if we must */
ro = curlun->initially_ro;
- ums_info->get_capacity(&(ums_info->ums_dev), &size);
- if (size < 0) {
- printf("unable to find file size: %s\n", filename);
- rc = (int) size;
- goto out;
- }
- num_sectors = size >> 9; /* File size in 512-byte blocks */
- min_sectors = 1;
- if (num_sectors < min_sectors) {
- printf("file too small: %s\n", filename);
- rc = -ETOOSMALL;
- goto out;
- }
-
curlun->ro = ro;
- curlun->file_length = size;
- curlun->num_sectors = num_sectors;
+ curlun->file_length = ums->num_sectors << 9;
+ curlun->num_sectors = ums->num_sectors;
debug("open backing file: %s\n", filename);
- rc = 0;
-out:
- return rc;
+ return 0;
}
static void fsg_lun_close(struct fsg_lun *curlun)
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 4ed07da842..219d18232a 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1548,7 +1548,7 @@ int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
}
dev->status = stat;
- dev->act_len = transfer_len;
+ dev->act_len = urb->actual_length;
#ifdef DEBUG
pkt_print(urb, dev, pipe, buffer, transfer_len,
diff --git a/include/configs/trats.h b/include/configs/trats.h
index 6ed3313265..3d080c4d19 100644
--- a/include/configs/trats.h
+++ b/include/configs/trats.h
@@ -321,9 +321,7 @@
#define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE ((500 * 120 * 4) + (1 << 12))
#define CONFIG_CMD_USB_MASS_STORAGE
-#if defined(CONFIG_CMD_USB_MASS_STORAGE)
#define CONFIG_USB_GADGET_MASS_STORAGE
-#endif
/* Pass open firmware flat tree */
#define CONFIG_OF_LIBFDT 1
diff --git a/include/g_dnl.h b/include/g_dnl.h
index de669fb85a..8f813c21ee 100644
--- a/include/g_dnl.h
+++ b/include/g_dnl.h
@@ -13,5 +13,6 @@
int g_dnl_bind_fixup(struct usb_device_descriptor *, const char *);
int g_dnl_register(const char *s);
void g_dnl_unregister(void);
+void g_dnl_set_serialnumber(char *);
#endif /* __G_DOWNLOAD_H_ */
diff --git a/include/usb.h b/include/usb.h
index d9fedeeff7..736730e896 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -197,6 +197,16 @@ int board_usb_init(int index, enum usb_init_type init);
*/
int board_usb_cleanup(int index, enum usb_init_type init);
+/*
+ * If CONFIG_USB_CABLE_CHECK is set then this function
+ * should be defined in board file.
+ *
+ * @return 1 if cable is connected and 0 otherwise.
+ */
+#ifdef CONFIG_USB_CABLE_CHECK
+int usb_cable_connected(void);
+#endif
+
#ifdef CONFIG_USB_STORAGE
#define USB_MAX_STOR_DEV 5
diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h
index 13f535ce2e..9df3adcf2a 100644
--- a/include/usb_mass_storage.h
+++ b/include/usb_mass_storage.h
@@ -9,32 +9,33 @@
#define __USB_MASS_STORAGE_H__
#define SECTOR_SIZE 0x200
-
#include <mmc.h>
#include <linux/usb/composite.h>
-struct ums_device {
- struct mmc *mmc;
- int dev_num;
- int offset;
- int part_size;
-};
+#ifndef UMS_START_SECTOR
+#define UMS_START_SECTOR 0
+#endif
-struct ums_board_info {
- int (*read_sector)(struct ums_device *ums_dev,
+#ifndef UMS_NUM_SECTORS
+#define UMS_NUM_SECTORS 0
+#endif
+
+struct ums {
+ int (*read_sector)(struct ums *ums_dev,
ulong start, lbaint_t blkcnt, void *buf);
- int (*write_sector)(struct ums_device *ums_dev,
+ int (*write_sector)(struct ums *ums_dev,
ulong start, lbaint_t blkcnt, const void *buf);
- void (*get_capacity)(struct ums_device *ums_dev,
- long long int *capacity);
+ unsigned int start_sector;
+ unsigned int num_sectors;
const char *name;
- struct ums_device ums_dev;
+ struct mmc *mmc;
};
-int fsg_init(struct ums_board_info *);
+extern struct ums *ums;
+
+int fsg_init(struct ums *);
void fsg_cleanup(void);
-struct ums_board_info *board_ums_init(unsigned int, unsigned int,
- unsigned int);
+struct ums *ums_init(unsigned int);
int fsg_main_thread(void *);
#ifdef CONFIG_USB_GADGET_MASS_STORAGE
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