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-rw-r--r--common/cmd_usb_mass_storage.c135
-rw-r--r--drivers/usb/gadget/f_mass_storage.c22
-rw-r--r--drivers/usb/gadget/storage_common.c7
-rw-r--r--include/usb_mass_storage.h6
4 files changed, 121 insertions, 49 deletions
diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c
index f4bafecd0d..041559172d 100644
--- a/common/cmd_usb_mass_storage.c
+++ b/common/cmd_usb_mass_storage.c
@@ -2,6 +2,8 @@
* Copyright (C) 2011 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*
+ * Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved.
+ *
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -17,7 +19,7 @@
static int ums_read_sector(struct ums *ums_dev,
ulong start, lbaint_t blkcnt, void *buf)
{
- block_dev_desc_t *block_dev = ums_dev->block_dev;
+ block_dev_desc_t *block_dev = &ums_dev->block_dev;
lbaint_t blkstart = start + ums_dev->start_sector;
return block_dev->block_read(block_dev, blkstart, blkcnt, buf);
@@ -26,39 +28,98 @@ static int ums_read_sector(struct ums *ums_dev,
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->block_dev;
+ block_dev_desc_t *block_dev = &ums_dev->block_dev;
lbaint_t blkstart = start + ums_dev->start_sector;
return block_dev->block_write(block_dev, 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;
+static int ums_count;
+
+static void ums_fini(void)
+{
+ int i;
+
+ for (i = 0; i < ums_count; i++)
+ free((void *)ums[i].name);
+ free(ums);
+ ums = 0;
+ ums_count = 0;
+}
+
+#define UMS_NAME_LEN 16
-struct ums *ums_init(const char *devtype, const char *devnum)
+static int ums_init(const char *devtype, const char *devnums)
{
+ char *s, *t, *devnum, *name;
block_dev_desc_t *block_dev;
int ret;
+ struct ums *ums_new;
- ret = get_device(devtype, devnum, &block_dev);
- if (ret < 0)
- return NULL;
+ s = strdup(devnums);
+ if (!s)
+ return -1;
+
+ t = s;
+ ums_count = 0;
+
+ for (;;) {
+ devnum = strsep(&t, ",");
+ if (!devnum)
+ break;
+
+ ret = get_device(devtype, devnum, &block_dev);
+ if (ret < 0)
+ goto cleanup;
+
+ /* f_mass_storage.c assumes SECTOR_SIZE sectors */
+ if (block_dev->blksz != SECTOR_SIZE) {
+ ret = -1;
+ goto cleanup;
+ }
- /* f_mass_storage.c assumes SECTOR_SIZE sectors */
- if (block_dev->blksz != SECTOR_SIZE)
- return NULL;
+ ums_new = realloc(ums, (ums_count + 1) * sizeof(*ums));
+ if (!ums_new) {
+ ret = -1;
+ goto cleanup;
+ }
+ ums = ums_new;
+
+ ums[ums_count].read_sector = ums_read_sector;
+ ums[ums_count].write_sector = ums_write_sector;
+ ums[ums_count].start_sector = 0;
+ ums[ums_count].num_sectors = block_dev->lba;
+ name = malloc(UMS_NAME_LEN);
+ if (!name) {
+ ret = -1;
+ goto cleanup;
+ }
+ snprintf(name, UMS_NAME_LEN, "UMS disk %d", ums_count);
+ ums[ums_count].name = name;
+ ums[ums_count].block_dev = *block_dev;
+
+ printf("UMS: LUN %d, dev %d, hwpart %d, sector %#x, count %#x\n",
+ ums_count, ums[ums_count].block_dev.dev,
+ ums[ums_count].block_dev.hwpart,
+ ums[ums_count].start_sector,
+ ums[ums_count].num_sectors);
+
+ ums_count++;
+ }
+
+ if (!ums_count)
+ ret = -1;
+ else
+ ret = 0;
- ums_dev.block_dev = block_dev;
- ums_dev.start_sector = 0;
- ums_dev.num_sectors = block_dev->lba;
+cleanup:
+ free(s);
- printf("UMS: disk start sector: %#x, count: %#x\n",
- ums_dev.start_sector, ums_dev.num_sectors);
+ if (ret < 0)
+ ums_fini();
- return &ums_dev;
+ return ret;
}
int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
@@ -67,7 +128,6 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
const char *usb_controller;
const char *devtype;
const char *devnum;
- struct ums *ums;
unsigned int controller_index;
int rc;
int cable_ready_timeout __maybe_unused;
@@ -84,27 +144,30 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
devnum = argv[2];
}
- ums = ums_init(devtype, devnum);
- if (!ums)
+ rc = ums_init(devtype, devnum);
+ if (rc < 0)
return CMD_RET_FAILURE;
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.");
- return CMD_RET_FAILURE;
+ rc = CMD_RET_FAILURE;
+ goto cleanup_ums_init;
}
- rc = fsg_init(ums);
+ rc = fsg_init(ums, ums_count);
if (rc) {
error("fsg_init failed");
- return CMD_RET_FAILURE;
+ rc = CMD_RET_FAILURE;
+ goto cleanup_board;
}
rc = g_dnl_register("usb_dnl_ums");
if (rc) {
error("g_dnl_register failed");
- return CMD_RET_FAILURE;
+ rc = CMD_RET_FAILURE;
+ goto cleanup_board;
}
/* Timeout unit: seconds */
@@ -120,12 +183,14 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
while (!g_dnl_board_usb_cable_connected()) {
if (ctrlc()) {
puts("\rCTRL+C - Operation aborted.\n");
- goto exit;
+ rc = CMD_RET_SUCCESS;
+ goto cleanup_register;
}
if (!cable_ready_timeout) {
puts("\rUSB cable not detected.\n" \
"Command exit.\n");
- goto exit;
+ rc = CMD_RET_SUCCESS;
+ goto cleanup_register;
}
printf("\rAuto exit in: %.2d s.", cable_ready_timeout);
@@ -148,13 +213,19 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
if (rc == -EPIPE)
printf("\rCTRL+C - Operation aborted\n");
- goto exit;
+ rc = CMD_RET_SUCCESS;
+ goto cleanup_register;
}
}
-exit:
+
+cleanup_register:
g_dnl_unregister();
+cleanup_board:
board_usb_cleanup(controller_index, USB_INIT_DEVICE);
- return CMD_RET_SUCCESS;
+cleanup_ums_init:
+ ums_fini();
+
+ return rc;
}
U_BOOT_CMD(ums, 4, 1, do_usb_mass_storage,
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index ec1f23a0cf..1ecb92ac6b 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -444,8 +444,9 @@ static void set_bulk_out_req_length(struct fsg_common *common,
/*-------------------------------------------------------------------------*/
-struct ums *ums;
-struct fsg_common *the_fsg_common;
+static struct ums *ums;
+static int ums_count;
+static struct fsg_common *the_fsg_common;
static int fsg_set_halt(struct fsg_dev *fsg, struct usb_ep *ep)
{
@@ -772,7 +773,7 @@ static int do_read(struct fsg_common *common)
}
/* Perform the read */
- rc = ums->read_sector(ums,
+ rc = ums[common->lun].read_sector(&ums[common->lun],
file_offset / SECTOR_SIZE,
amount / SECTOR_SIZE,
(char __user *)bh->buf);
@@ -946,7 +947,7 @@ static int do_write(struct fsg_common *common)
amount = bh->outreq->actual;
/* Perform the write */
- rc = ums->write_sector(ums,
+ rc = ums[common->lun].write_sector(&ums[common->lun],
file_offset / SECTOR_SIZE,
amount / SECTOR_SIZE,
(char __user *)bh->buf);
@@ -1062,7 +1063,7 @@ static int do_verify(struct fsg_common *common)
}
/* Perform the read */
- rc = ums->read_sector(ums,
+ rc = ums[common->lun].read_sector(&ums[common->lun],
file_offset / SECTOR_SIZE,
amount / SECTOR_SIZE,
(char __user *)bh->buf);
@@ -1117,7 +1118,7 @@ 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->name, (u16) 0xffff);
+ ums[common->lun].name, (u16) 0xffff);
return 36;
}
@@ -2456,7 +2457,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
int nluns, i, rc;
/* Find out how many LUNs there should be */
- nluns = 1;
+ nluns = ums_count;
if (nluns < 1 || nluns > FSG_MAX_LUNS) {
printf("invalid number of LUNs: %u\n", nluns);
return ERR_PTR(-EINVAL);
@@ -2501,7 +2502,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
for (i = 0; i < nluns; i++) {
common->luns[i].removable = 1;
- rc = fsg_lun_open(&common->luns[i], "");
+ rc = fsg_lun_open(&common->luns[i], ums[i].num_sectors, "");
if (rc)
goto error_luns;
}
@@ -2775,9 +2776,10 @@ int fsg_add(struct usb_configuration *c)
return fsg_bind_config(c->cdev, c, fsg_common);
}
-int fsg_init(struct ums *ums_dev)
+int fsg_init(struct ums *ums_devs, int count)
{
- ums = ums_dev;
+ ums = ums_devs;
+ ums_count = count;
return 0;
}
diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index b55e40bbda..b6df130a14 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -564,7 +564,8 @@ static struct usb_gadget_strings fsg_stringtab = {
* the caller must own fsg->filesem for writing.
*/
-static int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
+static int fsg_lun_open(struct fsg_lun *curlun, unsigned int num_sectors,
+ const char *filename)
{
int ro;
@@ -572,8 +573,8 @@ static int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
ro = curlun->initially_ro;
curlun->ro = ro;
- curlun->file_length = ums->num_sectors << 9;
- curlun->num_sectors = ums->num_sectors;
+ curlun->file_length = num_sectors << 9;
+ curlun->num_sectors = num_sectors;
debug("open backing file: %s\n", filename);
return 0;
diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h
index 69b80cd1a3..5804b70c35 100644
--- a/include/usb_mass_storage.h
+++ b/include/usb_mass_storage.h
@@ -23,12 +23,10 @@ struct ums {
unsigned int start_sector;
unsigned int num_sectors;
const char *name;
- block_dev_desc_t *block_dev;
+ block_dev_desc_t block_dev;
};
-extern struct ums *ums;
-
-int fsg_init(struct ums *);
+int fsg_init(struct ums *ums_devs, int count);
void fsg_cleanup(void);
int fsg_main_thread(void *);
int fsg_add(struct usb_configuration *c);
generated by cgit (git 2.34.1) at 2024-12-26 23:47:01 +0000