Dear Piotr Wilczek, > From: Lukasz Majewski <l.majew...@samsung.com> > > This patch adds the USB Mass Storage Gadget to u-boot > New command called "ums" is implemented to provide access > to on-device embedded persistent memory. > > USB Mass Storage is supposed to work on top of the USB > Gadget framework > > Signed-off-by: Lukasz Majewski <l.majew...@samsung.com> > Signed-off-by: Piotr Wilczek <p.wilc...@samsung.com> > Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com> > CC: Marek Vasut <marek.va...@gmail.com> > --- > common/Makefile | 1 + > common/cmd_usb_mass_storage.c | 85 > +++++++++++++++++++++++++++++++++++++++++ drivers/usb/gadget/g_dnl.c | > 6 +++ > include/usb_mass_storage.h | 59 ++++++++++++++++++++++++++++ > 4 files changed, 151 insertions(+) > create mode 100644 common/cmd_usb_mass_storage.c > create mode 100644 include/usb_mass_storage.h > > diff --git a/common/Makefile b/common/Makefile > index 54fcc81..8ec95d2 100644 > --- a/common/Makefile > +++ b/common/Makefile > @@ -174,6 +174,7 @@ COBJS-y += cmd_usb.o > COBJS-y += usb.o usb_hub.o > COBJS-$(CONFIG_USB_STORAGE) += usb_storage.o > endif > +COBJS-$(CONFIG_CMD_USB_MASS_STORAGE) += cmd_usb_mass_storage.o > COBJS-$(CONFIG_CMD_XIMG) += cmd_ximg.o > COBJS-$(CONFIG_YAFFS2) += cmd_yaffs2.o > COBJS-$(CONFIG_CMD_SPL) += cmd_spl.o > diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c > new file mode 100644 > index 0000000..bc5b239 > --- /dev/null > +++ b/common/cmd_usb_mass_storage.c > @@ -0,0 +1,85 @@ > +/* > + * Copyright (C) 2011 Samsung Electronics > + * Lukasz Majewski <l.majew...@samsung.com> > + * > + * 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 of > + * the License, 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., 59 Temple Place, Suite 330, Boston, > + * MA 02111-1307 USA > + */ > + > +#include <errno.h> > +#include <common.h> > +#include <command.h> > +#include <g_dnl.h> > +#include <usb_mass_storage.h> > + > +int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag, > + int argc, char * const argv[]) > +{ > + char *ep; > + unsigned int dev_num = 0, offset = 0, part_size = 0; > + int rc; > + > + struct ums_board_info *ums_info; > + static char *s = "ums"; > + > + if (argc < 2) { > + printf("usage: ums <dev> - e.g. ums 0\n"); > + return 0; > + } > + > + dev_num = (int)simple_strtoul(argv[1], &ep, 16); > + > + if (dev_num) { > + puts("\nSet eMMC device to 0! - e.g. ums 0\n"); > + goto fail; > + } > + > + board_usb_init(); > + ums_info = board_ums_init(dev_num, offset, part_size); > + > + if (!ums_info) { > + printf("MMC: %d -> NOT available\n", dev_num); > + goto fail; > + } > + rc = fsg_init(ums_info); > + if (rc) { > + printf("cmd ums: fsg_init failed\n"); > + goto fail; > + } > + > + g_dnl_register(s); > + > + while (1) { > + /* Handle control-c and timeouts */ > + if (ctrlc()) { > + printf("The remote end did not respond in time.\n"); > + goto exit; > + } > + usb_gadget_handle_interrupts(); > + /* Check if USB cable has been detached */ > + if (fsg_main_thread(NULL) == EIO) > + goto exit; > + } > +exit: > + g_dnl_unregister(); > + > +fail: > + return -1; > +} > + > +U_BOOT_CMD(ums, CONFIG_SYS_MAXARGS, 1, do_usb_mass_storage, > + "Use the UMS [User Mass Storage]", > + "ums - User Mass Storage Gadget" > +); > diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c > index a5a4c1f..cc3f344 100644 > --- a/drivers/usb/gadget/g_dnl.c > +++ b/drivers/usb/gadget/g_dnl.c > @@ -31,6 +31,7 @@ > > #include "gadget_chips.h" > #include "composite.c" > +#include "f_mass_storage.c" > > /* > * One needs to define the following: > @@ -104,6 +105,8 @@ static int g_dnl_do_config(struct usb_configuration *c) > printf("GADGET DRIVER: %s\n", s); > if (!strcmp(s, "usb_dnl_dfu")) > ret = dfu_add(c); > + else if (!strcmp(s, "usb_dnl_ums")) > + ret = fsg_add(c); > > return ret; > } > @@ -188,6 +191,9 @@ int g_dnl_register(const char *type) > if (!strcmp(type, "dfu")) { > strcpy(name, shortname); > strcat(name, type); > + } else if (!strcmp(type, "ums")) { > + strcpy(name, shortname); > + strcat(name, type); > } else { > printf("%s: unknown command: %s\n", __func__, type); > return -EINVAL; > diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h > new file mode 100644 > index 0000000..00c893c > --- /dev/null > +++ b/include/usb_mass_storage.h > @@ -0,0 +1,59 @@ > +/* > + * Copyright (C) 2011 Samsung Electrnoics > + * Lukasz Majewski <l.majew...@samsung.com> > + * > + * 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 of > + * the License, 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 > + * aloong with this program; if not, write to the Free Software > + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, > + * MA 02111-1307 USA > + */ > + > +#ifndef __USB_MASS_STORAGE_H__ > +#define __USB_MASS_STORAGE_H__ > + > +#define SECTOR_SIZE 0x200 > + > +#include <mmc.h> > + > +struct ums_device { > + struct mmc *mmc; > + int dev_num; > + int offset; > + int part_size; > +}; > + > +struct ums_board_info { > + int (*read_sector)(struct ums_device *ums_dev, > + ulong start, lbaint_t blkcnt, void *buf); > + int (*write_sector)(struct ums_device *ums_dev, > + ulong start, lbaint_t blkcnt, const void *buf); > + void (*get_capacity)(struct ums_device *ums_dev, > + long long int *capacity); > + const char *name; > + struct ums_device ums_dev; > +}; > + > +extern void board_usb_init(void); > + > +extern int fsg_init(struct ums_board_info *); > +extern void fsg_cleanup(void); > +extern struct ums_board_info *board_ums_init(unsigned int, > + unsigned int, unsigned int); > +extern int usb_gadget_handle_interrupts(void); > +extern int fsg_main_thread(void *); > + > +/* USB Attach/Detach */ > +extern int micro_usb_attached(void); > +extern int micro_usb_detach(void);
Does this "extern" in header file have any impact? > +#endif /* __USB_MASS_STORAGE_H__ */ _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot