* [U-Boot] [PATCH 0/4] USB: UMS: code refactoring and usage improvement
@ 2013-10-16 13:21 Przemyslaw Marczak
2013-10-16 13:21 ` [U-Boot] [PATCH 1/4] usb: ums: move ums code from trats to Samsung common directory Przemyslaw Marczak
` (4 more replies)
0 siblings, 5 replies; 22+ messages in thread
From: Przemyslaw Marczak @ 2013-10-16 13:21 UTC (permalink / raw)
To: u-boot
Hello,
Please look at my little ums refactor.
Quick summary:
- move ums initialization code to Samsung common
- introduce board definable parameters: UMS_START_BLOCK and UMS_PART_SIZE
- remove ums unnecessary code
- move ums structures to just one generic ums structure
- fix ums capacity miscalculation
- add function usb_cable_connected() which depends on CONFIG_USB_CABLE_CHECK
- add ums exit feature by ctrl+c or cable detachment
Thank you,
Przemyslaw Marczak
Przemyslaw Marczak (4):
usb: ums: move ums code from trats to Samsung common directory
usb: ums: code refactoring to improve reusability at other boards.
usb: ums: fix bug in partition capacity computation.
usb: ums: add ums exit feature by ctrl+c or by detach usb cable
board/samsung/common/Makefile | 1 +
board/samsung/common/ums.c | 75 +++++++++++++++++++++++++++++++++++
board/samsung/trats/trats.c | 62 -----------------------------
common/cmd_usb_mass_storage.c | 48 +++++++++++-----------
drivers/usb/gadget/f_mass_storage.c | 50 +++++++++++++++--------
drivers/usb/gadget/storage_common.c | 3 +-
include/configs/trats.h | 2 -
include/usb.h | 10 +++++
include/usb_mass_storage.h | 33 ++++++++-------
9 files changed, 163 insertions(+), 121 deletions(-)
create mode 100644 board/samsung/common/ums.c
--
1.7.9.5
^ permalink raw reply [flat|nested] 22+ messages in thread* [U-Boot] [PATCH 1/4] usb: ums: move ums code from trats to Samsung common directory 2013-10-16 13:21 [U-Boot] [PATCH 0/4] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak @ 2013-10-16 13:21 ` Przemyslaw Marczak 2013-10-17 17:39 ` Marek Vasut 2013-10-16 13:21 ` [U-Boot] [PATCH 2/4] usb: ums: code refactoring to improve reusability at other boards Przemyslaw Marczak ` (3 subsequent siblings) 4 siblings, 1 reply; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-16 13:21 UTC (permalink / raw) To: u-boot UMS init was implemented in trats board file but mostly it comprises common code. Due to that it has been moved to common/ums.c to avoid code duplication in the future. Changes: - move ums initialization code from trats to common/ums.c - remove unused CONFIG_USB_GADGET_MASS_STORAGE from trats.h Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marex@denx.de> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Lukasz Majewski <l.majewski@samsung.com> --- board/samsung/common/Makefile | 1 + board/samsung/common/ums.c | 66 +++++++++++++++++++++++++++++++++++++++++ board/samsung/trats/trats.c | 62 -------------------------------------- include/configs/trats.h | 2 -- 4 files changed, 67 insertions(+), 64 deletions(-) create mode 100644 board/samsung/common/ums.c diff --git a/board/samsung/common/Makefile b/board/samsung/common/Makefile index ad7564c..d122169 100644 --- a/board/samsung/common/Makefile +++ b/board/samsung/common/Makefile @@ -11,6 +11,7 @@ LIB = $(obj)libsamsung.o COBJS-$(CONFIG_SOFT_I2C_MULTI_BUS) += multi_i2c.o COBJS-$(CONFIG_THOR_FUNCTION) += thor.o +COBJS-$(CONFIG_CMD_USB_MASS_STORAGE) += ums.o SRCS := $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(COBJS-y)) diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c new file mode 100644 index 0000000..506f4b5 --- /dev/null +++ b/board/samsung/common/ums.c @@ -0,0 +1,66 @@ +/* + * 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_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 = "UMS disk", +}; + +struct ums_board_info *board_ums_init(unsigned int dev_num, unsigned int offset, + unsigned int part_size) +{ + struct mmc *mmc = NULL; + + 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; +} diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c index 58d925f..db5828d 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/include/configs/trats.h b/include/configs/trats.h index f5bb6aa..3e67229 100644 --- a/include/configs/trats.h +++ b/include/configs/trats.h @@ -323,9 +323,7 @@ #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 -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 1/4] usb: ums: move ums code from trats to Samsung common directory 2013-10-16 13:21 ` [U-Boot] [PATCH 1/4] usb: ums: move ums code from trats to Samsung common directory Przemyslaw Marczak @ 2013-10-17 17:39 ` Marek Vasut 2013-10-18 11:38 ` Przemyslaw Marczak 0 siblings, 1 reply; 22+ messages in thread From: Marek Vasut @ 2013-10-17 17:39 UTC (permalink / raw) To: u-boot Dear Przemyslaw Marczak, > UMS init was implemented in trats board file but mostly it comprises > common code. Due to that it has been moved to common/ums.c to avoid > code duplication in the future. > > Changes: > - move ums initialization code from trats to common/ums.c > - remove unused CONFIG_USB_GADGET_MASS_STORAGE from trats.h > > Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> > Cc: Marek Vasut <marex@denx.de> > Cc: Minkyu Kang <mk7.kang@samsung.com> > Cc: Lukasz Majewski <l.majewski@samsung.com> > --- > board/samsung/common/Makefile | 1 + > board/samsung/common/ums.c | 66 > +++++++++++++++++++++++++++++++++++++++++ board/samsung/trats/trats.c | > 62 -------------------------------------- include/configs/trats.h | > 2 -- > 4 files changed, 67 insertions(+), 64 deletions(-) > create mode 100644 board/samsung/common/ums.c > > diff --git a/board/samsung/common/Makefile b/board/samsung/common/Makefile > index ad7564c..d122169 100644 > --- a/board/samsung/common/Makefile > +++ b/board/samsung/common/Makefile > @@ -11,6 +11,7 @@ LIB = $(obj)libsamsung.o > > COBJS-$(CONFIG_SOFT_I2C_MULTI_BUS) += multi_i2c.o > COBJS-$(CONFIG_THOR_FUNCTION) += thor.o > +COBJS-$(CONFIG_CMD_USB_MASS_STORAGE) += ums.o > > SRCS := $(COBJS-y:.o=.c) > OBJS := $(addprefix $(obj),$(COBJS-y)) > diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c > new file mode 100644 > index 0000000..506f4b5 > --- /dev/null > +++ b/board/samsung/common/ums.c > @@ -0,0 +1,66 @@ > +/* > + * 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_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) This looks like hell. typeT block_dev = ums_dev->mmc; int ret; ret = block_dev->block_read(....); return ret; Is it necessary to return -1? Why ? Please fix the whole thing in-place first, then rebase this migration patch on top of the fix. ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 1/4] usb: ums: move ums code from trats to Samsung common directory 2013-10-17 17:39 ` Marek Vasut @ 2013-10-18 11:38 ` Przemyslaw Marczak 2013-10-18 13:58 ` Marek Vasut 0 siblings, 1 reply; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-18 11:38 UTC (permalink / raw) To: u-boot Hello Marek, Thank you for fast reply. On 10/17/2013 07:39 PM, Marek Vasut wrote: > Dear Przemyslaw Marczak, > >> UMS init was implemented in trats board file but mostly it comprises >> common code. Due to that it has been moved to common/ums.c to avoid >> code duplication in the future. >> >> Changes: >> - move ums initialization code from trats to common/ums.c >> - remove unused CONFIG_USB_GADGET_MASS_STORAGE from trats.h >> >> Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> >> Cc: Marek Vasut <marex@denx.de> >> Cc: Minkyu Kang <mk7.kang@samsung.com> >> Cc: Lukasz Majewski <l.majewski@samsung.com> >> --- >> board/samsung/common/Makefile | 1 + >> board/samsung/common/ums.c | 66 >> +++++++++++++++++++++++++++++++++++++++++ board/samsung/trats/trats.c | >> 62 -------------------------------------- include/configs/trats.h | >> 2 -- >> 4 files changed, 67 insertions(+), 64 deletions(-) >> create mode 100644 board/samsung/common/ums.c >> >> diff --git a/board/samsung/common/Makefile b/board/samsung/common/Makefile >> index ad7564c..d122169 100644 >> --- a/board/samsung/common/Makefile >> +++ b/board/samsung/common/Makefile >> @@ -11,6 +11,7 @@ LIB = $(obj)libsamsung.o >> >> COBJS-$(CONFIG_SOFT_I2C_MULTI_BUS) += multi_i2c.o >> COBJS-$(CONFIG_THOR_FUNCTION) += thor.o >> +COBJS-$(CONFIG_CMD_USB_MASS_STORAGE) += ums.o >> >> SRCS := $(COBJS-y:.o=.c) >> OBJS := $(addprefix $(obj),$(COBJS-y)) >> diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c >> new file mode 100644 >> index 0000000..506f4b5 >> --- /dev/null >> +++ b/board/samsung/common/ums.c >> @@ -0,0 +1,66 @@ >> +/* >> + * 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_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) > > This looks like hell. > > typeT block_dev = ums_dev->mmc; > int ret; > > ret = block_dev->block_read(....); > > return ret; Ok, you're right - I will fix it in next patch set. > > Is it necessary to return -1? Why ? > It's only because of ums gadged driver design but it is easy to simplify. > Please fix the whole thing in-place first, then rebase this migration patch on > top of the fix. > OK, migration patch will be at the top. And one more. Do you want me to make it applicable to usb-next or usb-master tree? Thank you for comments. -- Przemyslaw Marczak Samsung R&D Institute Poland Samsung Electronics p.marczak at samsung.com ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 1/4] usb: ums: move ums code from trats to Samsung common directory 2013-10-18 11:38 ` Przemyslaw Marczak @ 2013-10-18 13:58 ` Marek Vasut 0 siblings, 0 replies; 22+ messages in thread From: Marek Vasut @ 2013-10-18 13:58 UTC (permalink / raw) To: u-boot Dear Przemyslaw Marczak, > Hello Marek, > Thank you for fast reply. > > On 10/17/2013 07:39 PM, Marek Vasut wrote: > > Dear Przemyslaw Marczak, > > > >> UMS init was implemented in trats board file but mostly it comprises > >> common code. Due to that it has been moved to common/ums.c to avoid > >> code duplication in the future. > >> > >> Changes: > >> - move ums initialization code from trats to common/ums.c > >> - remove unused CONFIG_USB_GADGET_MASS_STORAGE from trats.h > >> > >> Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> > >> Cc: Marek Vasut <marex@denx.de> > >> Cc: Minkyu Kang <mk7.kang@samsung.com> > >> Cc: Lukasz Majewski <l.majewski@samsung.com> > >> --- > >> > >> board/samsung/common/Makefile | 1 + > >> board/samsung/common/ums.c | 66 > >> > >> +++++++++++++++++++++++++++++++++++++++++ board/samsung/trats/trats.c > >> | > >> > >> 62 -------------------------------------- include/configs/trats.h > >> | > >> > >> 2 -- > >> > >> 4 files changed, 67 insertions(+), 64 deletions(-) > >> create mode 100644 board/samsung/common/ums.c > >> > >> diff --git a/board/samsung/common/Makefile > >> b/board/samsung/common/Makefile index ad7564c..d122169 100644 > >> --- a/board/samsung/common/Makefile > >> +++ b/board/samsung/common/Makefile > >> @@ -11,6 +11,7 @@ LIB = $(obj)libsamsung.o > >> > >> COBJS-$(CONFIG_SOFT_I2C_MULTI_BUS) += multi_i2c.o > >> COBJS-$(CONFIG_THOR_FUNCTION) += thor.o > >> > >> +COBJS-$(CONFIG_CMD_USB_MASS_STORAGE) += ums.o > >> > >> SRCS := $(COBJS-y:.o=.c) > >> OBJS := $(addprefix $(obj),$(COBJS-y)) > >> > >> diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c > >> new file mode 100644 > >> index 0000000..506f4b5 > >> --- /dev/null > >> +++ b/board/samsung/common/ums.c > >> @@ -0,0 +1,66 @@ > >> +/* > >> + * 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_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) > > > > This looks like hell. > > > > typeT block_dev = ums_dev->mmc; > > int ret; > > > > ret = block_dev->block_read(....); > > > > return ret; > > Ok, you're right - I will fix it in next patch set. > > > Is it necessary to return -1? Why ? > > It's only because of ums gadged driver design but it is easy to simplify. A proper errno.h patch would be good here. > > Please fix the whole thing in-place first, then rebase this migration > > patch on top of the fix. > > OK, migration patch will be at the top. > > And one more. Do you want me to make it applicable to usb-next or > usb-master tree? -next please. ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 2/4] usb: ums: code refactoring to improve reusability at other boards. 2013-10-16 13:21 [U-Boot] [PATCH 0/4] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak 2013-10-16 13:21 ` [U-Boot] [PATCH 1/4] usb: ums: move ums code from trats to Samsung common directory Przemyslaw Marczak @ 2013-10-16 13:21 ` Przemyslaw Marczak 2013-10-16 13:21 ` [U-Boot] [PATCH 3/4] usb: ums: fix bug in partition capacity computation Przemyslaw Marczak ` (2 subsequent siblings) 4 siblings, 0 replies; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-16 13:21 UTC (permalink / raw) To: u-boot This patch introduces some cleanups to ums code. Changes: ums common: - introduce UMS_START_BLOCK and UMS_PART_SIZE as defined in usb_mass_storage.h both default values as 0 if board config do not define them common cleanup changes: - change name of struct "ums_board_info" to "ums" - "ums_device" fields are moved to struct ums and "dev_num" is removed - change function name: board_ums_init to ums_init - remove "extern" prefixes from usb_mass_storage.h cmd_usb_mass_storage: - change error() to printf() if need to print info message - change return values to command_ret_t type at ums command code - add command usage string Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marek.vasut@gmail.com> --- board/samsung/common/ums.c | 37 ++++++++++++++++++----------------- common/cmd_usb_mass_storage.c | 27 +++++++++++-------------- drivers/usb/gadget/f_mass_storage.c | 26 ++++++++++++------------ drivers/usb/gadget/storage_common.c | 3 +-- include/usb_mass_storage.h | 33 +++++++++++++++++-------------- 5 files changed, 62 insertions(+), 64 deletions(-) diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c index 506f4b5..1f28590 100644 --- a/board/samsung/common/ums.c +++ b/board/samsung/common/ums.c @@ -9,30 +9,33 @@ #include <usb_mass_storage.h> #include <part.h> -static int ums_read_sector(struct ums_device *ums_dev, +static int ums_read_sector(struct ums *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) + int dev_num = ums_dev->mmc->block_dev.dev; + + if (ums_dev->mmc->block_dev.block_read(dev_num, + start + ums_dev->offset, + blkcnt, buf) != blkcnt) return -1; return 0; } -static int ums_write_sector(struct ums_device *ums_dev, +static int ums_write_sector(struct ums *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) + int dev_num = ums_dev->mmc->block_dev.dev; + + if (ums_dev->mmc->block_dev.block_write(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) +static void ums_get_capacity(struct ums *ums_dev, long long int *capacity) { long long int tmp_capacity; @@ -41,15 +44,16 @@ static void ums_get_capacity(struct ums_device *ums_dev, *capacity = ums_dev->mmc->capacity - tmp_capacity; } -static struct ums_board_info ums_board = { +static struct ums ums_dev = { .read_sector = ums_read_sector, .write_sector = ums_write_sector, .get_capacity = ums_get_capacity, .name = "UMS disk", + .offset = UMS_START_BLOCK, + .part_size = UMS_PART_SIZE, }; -struct ums_board_info *board_ums_init(unsigned int dev_num, unsigned int offset, - unsigned int part_size) +struct ums *ums_init(unsigned int dev_num) { struct mmc *mmc = NULL; @@ -57,10 +61,7 @@ struct ums_board_info *board_ums_init(unsigned int dev_num, unsigned int offset, 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; + ums_dev.mmc = mmc; - return &ums_board; + return &ums_dev; } diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index f583caf..f6ceba7 100644 --- a/common/cmd_usb_mass_storage.c +++ b/common/cmd_usb_mass_storage.c @@ -22,28 +22,26 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag, 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; - } + if (dev_num) + return CMD_RET_USAGE; 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; + return CMD_RET_FAILURE; } - 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; + struct ums *ums = ums_init(dev_num); + if (!ums) { + printf("MMC: %u no such device\n", dev_num); + 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"); @@ -62,13 +60,10 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag, } 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/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index b34068a..9560deb 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -444,7 +444,7 @@ 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) @@ -761,10 +761,10 @@ 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); + rc = ums->read_sector(ums, + file_offset / SECTOR_SIZE, + amount / SECTOR_SIZE, + (char __user *)bh->buf); if (rc) return -EIO; nread = amount; @@ -934,7 +934,7 @@ 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); @@ -1049,10 +1049,10 @@ 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); + rc = ums->read_sector(ums, + file_offset / SECTOR_SIZE, + amount / SECTOR_SIZE, + (char __user *)bh->buf); if (rc) return -EIO; nread = amount; @@ -1103,7 +1103,7 @@ 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; } @@ -2758,9 +2758,9 @@ 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/storage_common.c b/drivers/usb/gadget/storage_common.c index 866e7c7..c2c5424 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; /*-------------------------------------------------------------------------*/ @@ -581,7 +580,7 @@ static int fsg_lun_open(struct fsg_lun *curlun, const char *filename) /* R/W if we can, R/O if we must */ ro = curlun->initially_ro; - ums_info->get_capacity(&(ums_info->ums_dev), &size); + ums->get_capacity(ums, &size); if (size < 0) { printf("unable to find file size: %s\n", filename); rc = (int) size; diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h index 13f535c..292e471 100644 --- a/include/usb_mass_storage.h +++ b/include/usb_mass_storage.h @@ -9,32 +9,35 @@ #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_BLOCK +#define UMS_START_BLOCK 0 +#endif -struct ums_board_info { - int (*read_sector)(struct ums_device *ums_dev, +#ifndef UMS_PART_SIZE +#define UMS_PART_SIZE 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, + void (*get_capacity)(struct ums *ums_dev, long long int *capacity); const char *name; - struct ums_device ums_dev; + struct mmc *mmc; + int offset; + int part_size; }; -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 -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 3/4] usb: ums: fix bug in partition capacity computation. 2013-10-16 13:21 [U-Boot] [PATCH 0/4] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak 2013-10-16 13:21 ` [U-Boot] [PATCH 1/4] usb: ums: move ums code from trats to Samsung common directory Przemyslaw Marczak 2013-10-16 13:21 ` [U-Boot] [PATCH 2/4] usb: ums: code refactoring to improve reusability at other boards Przemyslaw Marczak @ 2013-10-16 13:21 ` Przemyslaw Marczak 2013-10-17 17:41 ` Marek Vasut 2013-10-16 13:21 ` [U-Boot] [PATCH 4/4] usb: ums: add ums exit feature by ctrl+c or by detach usb cable Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 0/5] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak 4 siblings, 1 reply; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-16 13:21 UTC (permalink / raw) To: u-boot Before this change ums disk capacity was miscalculated because of integer overflow. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marex@denx.de> --- board/samsung/common/ums.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c index 1f28590..6c4e6c4 100644 --- a/board/samsung/common/ums.c +++ b/board/samsung/common/ums.c @@ -37,11 +37,19 @@ static int ums_write_sector(struct ums *ums_dev, static void ums_get_capacity(struct ums *ums_dev, long long int *capacity) { - long long int tmp_capacity; + int64_t mmc_capacity = (int64_t)ums_dev->mmc->capacity; + int64_t ums_capacity = (int64_t)ums_dev->part_size * SECTOR_SIZE; + int64_t ums_offset = (int64_t)ums_dev->offset * SECTOR_SIZE; - tmp_capacity = (long long int)((ums_dev->offset + ums_dev->part_size) - * SECTOR_SIZE); - *capacity = ums_dev->mmc->capacity - tmp_capacity; + if (ums_capacity && ((ums_capacity + ums_offset) < mmc_capacity)) + *capacity = ums_capacity; + else + *capacity = mmc_capacity - ums_offset; + + printf("UMS: partition capacity: %#llx blocks\n" + "UMS: partition start block: %#x\n", + *capacity / SECTOR_SIZE, + ums_dev->offset); } static struct ums ums_dev = { -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 3/4] usb: ums: fix bug in partition capacity computation. 2013-10-16 13:21 ` [U-Boot] [PATCH 3/4] usb: ums: fix bug in partition capacity computation Przemyslaw Marczak @ 2013-10-17 17:41 ` Marek Vasut 2013-10-18 15:05 ` Przemyslaw Marczak 0 siblings, 1 reply; 22+ messages in thread From: Marek Vasut @ 2013-10-17 17:41 UTC (permalink / raw) To: u-boot Dear Przemyslaw Marczak, > Before this change ums disk capacity was miscalculated because > of integer overflow. > > Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> > Cc: Marek Vasut <marex@denx.de> > --- > board/samsung/common/ums.c | 16 ++++++++++++---- > 1 file changed, 12 insertions(+), 4 deletions(-) > > diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c > index 1f28590..6c4e6c4 100644 > --- a/board/samsung/common/ums.c > +++ b/board/samsung/common/ums.c > @@ -37,11 +37,19 @@ static int ums_write_sector(struct ums *ums_dev, > > static void ums_get_capacity(struct ums *ums_dev, long long int *capacity) > { > - long long int tmp_capacity; > + int64_t mmc_capacity = (int64_t)ums_dev->mmc->capacity; Why are these casts here? > + int64_t ums_capacity = (int64_t)ums_dev->part_size * SECTOR_SIZE; > + int64_t ums_offset = (int64_t)ums_dev->offset * SECTOR_SIZE; And here all around? And why are these values signed, can there ever be negative value in them? > - tmp_capacity = (long long int)((ums_dev->offset + ums_dev->part_size) > - * SECTOR_SIZE); > - *capacity = ums_dev->mmc->capacity - tmp_capacity; > + if (ums_capacity && ((ums_capacity + ums_offset) < mmc_capacity)) > + *capacity = ums_capacity; > + else > + *capacity = mmc_capacity - ums_offset; Urgh, what exactly does this code achieve again? > + printf("UMS: partition capacity: %#llx blocks\n" > + "UMS: partition start block: %#x\n", > + *capacity / SECTOR_SIZE, > + ums_dev->offset); > } > > static struct ums ums_dev = { Best regards, Marek Vasut ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 3/4] usb: ums: fix bug in partition capacity computation. 2013-10-17 17:41 ` Marek Vasut @ 2013-10-18 15:05 ` Przemyslaw Marczak 2013-10-19 0:57 ` Marek Vasut 0 siblings, 1 reply; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-18 15:05 UTC (permalink / raw) To: u-boot Hi Marek, On 10/17/2013 07:41 PM, Marek Vasut wrote: > Dear Przemyslaw Marczak, > >> Before this change ums disk capacity was miscalculated because >> of integer overflow. >> >> Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> >> Cc: Marek Vasut <marex@denx.de> >> --- >> board/samsung/common/ums.c | 16 ++++++++++++---- >> 1 file changed, 12 insertions(+), 4 deletions(-) >> >> diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c >> index 1f28590..6c4e6c4 100644 >> --- a/board/samsung/common/ums.c >> +++ b/board/samsung/common/ums.c >> @@ -37,11 +37,19 @@ static int ums_write_sector(struct ums *ums_dev, >> >> static void ums_get_capacity(struct ums *ums_dev, long long int *capacity) >> { >> - long long int tmp_capacity; >> + int64_t mmc_capacity = (int64_t)ums_dev->mmc->capacity; > > Why are these casts here? > >> + int64_t ums_capacity = (int64_t)ums_dev->part_size * SECTOR_SIZE; >> + int64_t ums_offset = (int64_t)ums_dev->offset * SECTOR_SIZE; > > And here all around? And why are these values signed, can there ever be negative > value in them? > I tried to fix it without changes in ums driver because it works fine. Of course capacity can't be a negative value. When we set some offset and some part size we have an integer overflow at this line, just before cast to long long int: >> - tmp_capacity = (long long int)((ums_dev->offset + ums_dev->part_size) >> - * SECTOR_SIZE); >> - *capacity = ums_dev->mmc->capacity - tmp_capacity; In the best case of overflow - ums partition capacity will have the same value as mmc cap, but if offset was set, then the partition size will be exceeded. >> + if (ums_capacity && ((ums_capacity + ums_offset) < mmc_capacity)) >> + *capacity = ums_capacity; >> + else >> + *capacity = mmc_capacity - ums_offset; > > Urgh, what exactly does this code achieve again? This code above avoids situation when tmp_capacity value is bigger than real mmc capacity. I don't check next the offset but this is also the reason why I put printf here. I assume that developer should know how to define UMS_START_BLOCK and UMS_PART_SIZE if no, some information will be printed. > >> + printf("UMS: partition capacity: %#llx blocks\n" >> + "UMS: partition start block: %#x\n", >> + *capacity / SECTOR_SIZE, >> + ums_dev->offset); >> } >> >> static struct ums ums_dev = { > > Best regards, > Marek Vasut > In summary I will change signed variables to unsigned here and few in the ums gadget driver. Moreover now I think that it will be better to replace part_size from the struct ums_dev with part_blk_num and compute its value at ums_init function. And then pointer to ums_get_capacity is not needed in ums structure. What do you think about this? -- Przemyslaw Marczak Samsung R&D Institute Poland Samsung Electronics p.marczak at samsung.com ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 3/4] usb: ums: fix bug in partition capacity computation. 2013-10-18 15:05 ` Przemyslaw Marczak @ 2013-10-19 0:57 ` Marek Vasut 2013-10-22 11:04 ` Przemyslaw Marczak 0 siblings, 1 reply; 22+ messages in thread From: Marek Vasut @ 2013-10-19 0:57 UTC (permalink / raw) To: u-boot Dear Przemyslaw Marczak, > Hi Marek, > > On 10/17/2013 07:41 PM, Marek Vasut wrote: > > Dear Przemyslaw Marczak, > > > >> Before this change ums disk capacity was miscalculated because > >> of integer overflow. > >> > >> Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> > >> Cc: Marek Vasut <marex@denx.de> > >> --- > >> > >> board/samsung/common/ums.c | 16 ++++++++++++---- > >> 1 file changed, 12 insertions(+), 4 deletions(-) > >> > >> diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c > >> index 1f28590..6c4e6c4 100644 > >> --- a/board/samsung/common/ums.c > >> +++ b/board/samsung/common/ums.c > >> @@ -37,11 +37,19 @@ static int ums_write_sector(struct ums *ums_dev, > >> > >> static void ums_get_capacity(struct ums *ums_dev, long long int > >> *capacity) { > >> > >> - long long int tmp_capacity; > >> + int64_t mmc_capacity = (int64_t)ums_dev->mmc->capacity; > > > > Why are these casts here? > > > >> + int64_t ums_capacity = (int64_t)ums_dev->part_size * SECTOR_SIZE; > >> + int64_t ums_offset = (int64_t)ums_dev->offset * SECTOR_SIZE; > > > > And here all around? And why are these values signed, can there ever be > > negative value in them? > > I tried to fix it without changes in ums driver because it works fine. > Of course capacity can't be a negative value. > > When we set some offset and some part size we have an integer overflow > > at this line, just before cast to long long int: > >> - tmp_capacity = (long long int)((ums_dev->offset + ums_dev->part_size) > >> - * SECTOR_SIZE); > >> - *capacity = ums_dev->mmc->capacity - tmp_capacity; > > In the best case of overflow - ums partition capacity will have the same > value as mmc cap, but if offset was set, then the partition size will be > exceeded. > > >> + if (ums_capacity && ((ums_capacity + ums_offset) < mmc_capacity)) > >> + *capacity = ums_capacity; > >> + else > >> + *capacity = mmc_capacity - ums_offset; > > > > Urgh, what exactly does this code achieve again? > > This code above avoids situation when tmp_capacity value is bigger than > real mmc capacity. I don't check next the offset but this is also the > reason why I put printf here. I assume that developer should know how to > define UMS_START_BLOCK and UMS_PART_SIZE if no, some information will be > printed. > > >> + printf("UMS: partition capacity: %#llx blocks\n" > >> + "UMS: partition start block: %#x\n", > >> + *capacity / SECTOR_SIZE, > >> + ums_dev->offset); > >> > >> } > >> > >> static struct ums ums_dev = { > > > > Best regards, > > Marek Vasut > > In summary I will change signed variables to unsigned here and few in > the ums gadget driver. > Moreover now I think that it will be better to replace part_size from > the struct ums_dev with part_blk_num and compute its value at ums_init > function. And then pointer to ums_get_capacity is not needed in ums > structure. > > What do you think about this? I think the first screaming thing here is ... why is this all multiplied by SECTOR_SIZE before doing the comparisons and stuffs ? You can do that later (that does mean do it later, yes). Try this: u64 mmc_cap = ums_dev->mmc->capacity / SECTOR_SIZE; u64 ums_start = ums_dev->offset; u64 ums_end = ums_start + ums_dev->part_size; /* Start past MMC size. */ if (ums_start >= mmc_cap) return -EINVAL; /* End past MMC size. */ if (ums_end > mmc_cap) { puts("UMS region larger than MMC device, capping\n"); ums_end = mmc_cap; } *capacity = (ums_end - ums_start) * SECTOR_SIZE; Does this work? You'd need to add debug. ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 3/4] usb: ums: fix bug in partition capacity computation. 2013-10-19 0:57 ` Marek Vasut @ 2013-10-22 11:04 ` Przemyslaw Marczak 0 siblings, 0 replies; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-22 11:04 UTC (permalink / raw) To: u-boot Hello Marek, On 10/19/2013 02:57 AM, Marek Vasut wrote: > Dear Przemyslaw Marczak, > >> Hi Marek, >> >> On 10/17/2013 07:41 PM, Marek Vasut wrote: >>> Dear Przemyslaw Marczak, >>> >>>> Before this change ums disk capacity was miscalculated because >>>> of integer overflow. >>>> >>>> Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> >>>> Cc: Marek Vasut <marex@denx.de> >>>> --- >>>> >>>> board/samsung/common/ums.c | 16 ++++++++++++---- >>>> 1 file changed, 12 insertions(+), 4 deletions(-) >>>> >>>> diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c >>>> index 1f28590..6c4e6c4 100644 >>>> --- a/board/samsung/common/ums.c >>>> +++ b/board/samsung/common/ums.c >>>> @@ -37,11 +37,19 @@ static int ums_write_sector(struct ums *ums_dev, >>>> >>>> static void ums_get_capacity(struct ums *ums_dev, long long int >>>> *capacity) { >>>> >>>> - long long int tmp_capacity; >>>> + int64_t mmc_capacity = (int64_t)ums_dev->mmc->capacity; >>> >>> Why are these casts here? >>> >>>> + int64_t ums_capacity = (int64_t)ums_dev->part_size * SECTOR_SIZE; >>>> + int64_t ums_offset = (int64_t)ums_dev->offset * SECTOR_SIZE; >>> >>> And here all around? And why are these values signed, can there ever be >>> negative value in them? >> >> I tried to fix it without changes in ums driver because it works fine. >> Of course capacity can't be a negative value. >> >> When we set some offset and some part size we have an integer overflow >> >> at this line, just before cast to long long int: >>>> - tmp_capacity = (long long int)((ums_dev->offset + ums_dev->part_size) >>>> - * SECTOR_SIZE); >>>> - *capacity = ums_dev->mmc->capacity - tmp_capacity; >> >> In the best case of overflow - ums partition capacity will have the same >> value as mmc cap, but if offset was set, then the partition size will be >> exceeded. >> >>>> + if (ums_capacity && ((ums_capacity + ums_offset) < mmc_capacity)) >>>> + *capacity = ums_capacity; >>>> + else >>>> + *capacity = mmc_capacity - ums_offset; >>> >>> Urgh, what exactly does this code achieve again? >> >> This code above avoids situation when tmp_capacity value is bigger than >> real mmc capacity. I don't check next the offset but this is also the >> reason why I put printf here. I assume that developer should know how to >> define UMS_START_BLOCK and UMS_PART_SIZE if no, some information will be >> printed. >> >>>> + printf("UMS: partition capacity: %#llx blocks\n" >>>> + "UMS: partition start block: %#x\n", >>>> + *capacity / SECTOR_SIZE, >>>> + ums_dev->offset); >>>> >>>> } >>>> >>>> static struct ums ums_dev = { >>> >>> Best regards, >>> Marek Vasut >> >> In summary I will change signed variables to unsigned here and few in >> the ums gadget driver. >> Moreover now I think that it will be better to replace part_size from >> the struct ums_dev with part_blk_num and compute its value at ums_init >> function. And then pointer to ums_get_capacity is not needed in ums >> structure. >> >> What do you think about this? > > I think the first screaming thing here is ... why is this all multiplied by > SECTOR_SIZE before doing the comparisons and stuffs ? You can do that later > (that does mean do it later, yes). You're right, but actually we don't need to use real card capacity but only sector count. Patch v2 will include this. > > Try this: > > u64 mmc_cap = ums_dev->mmc->capacity / SECTOR_SIZE; > u64 ums_start = ums_dev->offset; > u64 ums_end = ums_start + ums_dev->part_size; > > /* Start past MMC size. */ > if (ums_start >= mmc_cap) > return -EINVAL; > > /* End past MMC size. */ > if (ums_end > mmc_cap) { > puts("UMS region larger than MMC device, capping\n"); > ums_end = mmc_cap; > } > > *capacity = (ums_end - ums_start) * SECTOR_SIZE; > > Does this work? You'd need to add debug. > It will only work if UMS_PART_SIZE and UMS_START_BLOCK are set correctly. In default case when both values are defined as 0 - function returns null capacity but we don't want this. Patch v2 will include cases for default, valid and bad definitions of UMS_PART_SIZE and UMS_START_BLOCK. I will also remove unnecessary code around capacity validation from ums gadget driver. Next patch set will be send soon. Regards -- Przemyslaw Marczak Samsung R&D Institute Poland Samsung Electronics p.marczak at samsung.com ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 4/4] usb: ums: add ums exit feature by ctrl+c or by detach usb cable 2013-10-16 13:21 [U-Boot] [PATCH 0/4] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak ` (2 preceding siblings ...) 2013-10-16 13:21 ` [U-Boot] [PATCH 3/4] usb: ums: fix bug in partition capacity computation Przemyslaw Marczak @ 2013-10-16 13:21 ` Przemyslaw Marczak 2013-10-17 17:43 ` Marek Vasut 2013-10-23 12:30 ` [U-Boot] [PATCH v2 0/5] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak 4 siblings, 1 reply; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-16 13:21 UTC (permalink / raw) To: u-boot This patch allows exiting from UMS mode to u-boot prompt by detaching usb cable or by pressing ctrl+c. Add new config: CONFIG_USB_CABLE_CHECK. If defined then board file should provide function: usb_cable_connected() (include/usb.h) that return 1 if cable is connected and 0 otherwise. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marex@denx.de> --- common/cmd_usb_mass_storage.c | 21 +++++++++++++-------- drivers/usb/gadget/f_mass_storage.c | 24 +++++++++++++++++++++--- include/usb.h | 10 ++++++++++ 3 files changed, 44 insertions(+), 11 deletions(-) diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index f6ceba7..9224d3c 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> @@ -47,16 +48,20 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag, 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(); diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 9560deb..a49572d 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -245,6 +245,7 @@ #include <config.h> #include <malloc.h> #include <common.h> +#include <usb.h> #include <linux/err.h> #include <linux/usb/ch9.h> @@ -678,6 +679,18 @@ 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; @@ -2389,6 +2402,7 @@ 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 { @@ -2398,12 +2412,16 @@ 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; diff --git a/include/usb.h b/include/usb.h index 17fb68c..8c1789f 100644 --- a/include/usb.h +++ b/include/usb.h @@ -197,6 +197,16 @@ int board_usb_init(int index, enum board_usb_init_type init); */ int board_usb_cleanup(int index, enum board_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 -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH 4/4] usb: ums: add ums exit feature by ctrl+c or by detach usb cable 2013-10-16 13:21 ` [U-Boot] [PATCH 4/4] usb: ums: add ums exit feature by ctrl+c or by detach usb cable Przemyslaw Marczak @ 2013-10-17 17:43 ` Marek Vasut 0 siblings, 0 replies; 22+ messages in thread From: Marek Vasut @ 2013-10-17 17:43 UTC (permalink / raw) To: u-boot Dear Przemyslaw Marczak, > This patch allows exiting from UMS mode to u-boot prompt > by detaching usb cable or by pressing ctrl+c. > > Add new config: CONFIG_USB_CABLE_CHECK. If defined then board > file should provide function: usb_cable_connected() (include/usb.h) > that return 1 if cable is connected and 0 otherwise. > > Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> > Cc: Marek Vasut <marex@denx.de> > --- [...] > @@ -678,6 +679,18 @@ static int sleep_thread(struct fsg_common *common) > k++; > } > > + if (k == 10) { > + /* Handle CTRL+C */ > + if (ctrlc()) > + return -EPIPE; > +#ifdef CONFIG_USB_CABLE_CHECK Please document this newly added option in README. Best regards, Marek Vasut ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH v2 0/5] USB: UMS: code refactoring and usage improvement 2013-10-16 13:21 [U-Boot] [PATCH 0/4] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak ` (3 preceding siblings ...) 2013-10-16 13:21 ` [U-Boot] [PATCH 4/4] usb: ums: add ums exit feature by ctrl+c or by detach usb cable Przemyslaw Marczak @ 2013-10-23 12:30 ` Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 1/5] usb: ums: code refactoring to improve reusability on other boards Przemyslaw Marczak ` (4 more replies) 4 siblings, 5 replies; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-23 12:30 UTC (permalink / raw) To: u-boot Quick summary: - introduce board definable parameters: UMS_START_BLOCK and UMS_PART_SIZE - remove ums unnecessary code - move ums structures to just one generic ums structure - add mmc device num as one of ums parameter - fix ums capacity miscalculation - move ums initialization code to Samsung common - add function usb_cable_connected() which depends on CONFIG_USB_CABLE_CHECK - add ums exit feature by ctrl+c or cable detachment Thank you, Przemyslaw Marczak Przemyslaw Marczak (5): usb: ums: code refactoring to improve reusability on other boards. usb: ums: allows using every mmc device with ums. usb: ums: fix disk capacity miscalculation and code cleanup usb: ums: move ums code from trats to Samsung common directory usb: ums: add ums exit feature by ctrl+c or by detach usb cable README | 7 ++++ board/samsung/common/Makefile | 1 + board/samsung/common/ums.c | 76 +++++++++++++++++++++++++++++++++++ board/samsung/trats/trats.c | 62 ---------------------------- common/cmd_usb_mass_storage.c | 51 +++++++++++------------ drivers/usb/gadget/f_mass_storage.c | 67 +++++++++++++++++++----------- drivers/usb/gadget/storage_common.c | 27 ++----------- include/configs/trats.h | 2 - include/usb.h | 10 +++++ include/usb_mass_storage.h | 33 +++++++-------- 10 files changed, 180 insertions(+), 156 deletions(-) create mode 100644 board/samsung/common/ums.c -- 1.7.9.5 ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH v2 1/5] usb: ums: code refactoring to improve reusability on other boards. 2013-10-23 12:30 ` [U-Boot] [PATCH v2 0/5] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak @ 2013-10-23 12:30 ` Przemyslaw Marczak 2013-10-27 18:18 ` Marek Vasut 2013-10-23 12:30 ` [U-Boot] [PATCH v2 2/5] usb: ums: allows using every mmc device with ums Przemyslaw Marczak ` (3 subsequent siblings) 4 siblings, 1 reply; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-23 12:30 UTC (permalink / raw) To: u-boot This patch introduces some cleanups to ums code. Changes: ums common: - introduce UMS_START_SECTOR and UMS_NUM_SECTORS as defined in usb_mass_storage.h both default values as 0 if board config doesn't define them common cleanup changes: - change name of struct "ums_board_info" to "ums" - "ums_device" fields are moved to struct ums and "dev_num" is removed - change function name: board_ums_init to ums_init - remove "extern" prefixes from usb_mass_storage.h cmd_usb_mass_storage: - change error() to printf() if need to print info message - change return values to command_ret_t type at ums command code - add command usage string Changes v2: ums common: - always returns number of read/write sectors - coding style clean-up ums gadget: - calculate amount of read/write from device returned value. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marek.vasut@gmail.com> --- board/samsung/trats/trats.c | 51 +++++++++++++++-------------------- common/cmd_usb_mass_storage.c | 27 ++++++++----------- drivers/usb/gadget/f_mass_storage.c | 43 ++++++++++++++--------------- drivers/usb/gadget/storage_common.c | 3 +-- include/usb_mass_storage.h | 33 ++++++++++++----------- 5 files changed, 73 insertions(+), 84 deletions(-) diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c index 58d925f..0b58b00 100644 --- a/board/samsung/trats/trats.c +++ b/board/samsung/trats/trats.c @@ -774,63 +774,54 @@ void init_panel_info(vidinfo_t *vid) } #ifdef CONFIG_USB_GADGET_MASS_STORAGE -static int ums_read_sector(struct ums_device *ums_dev, +static int ums_read_sector(struct ums *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; + block_dev_desc_t *block_dev = &ums_dev->mmc->block_dev; + lbaint_t blkstart = start + ums_dev->offset; + int dev_num = block_dev->dev; - return 0; + return block_dev->block_read(dev_num, blkstart, blkcnt, buf); } -static int ums_write_sector(struct ums_device *ums_dev, +static int ums_write_sector(struct ums *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; + block_dev_desc_t *block_dev = &ums_dev->mmc->block_dev; + lbaint_t blkstart = start + ums_dev->offset; + int dev_num = block_dev->dev; - return 0; + return block_dev->block_write(dev_num, blkstart, blkcnt, buf); } -static void ums_get_capacity(struct ums_device *ums_dev, - long long int *capacity) +static void ums_get_capacity(struct ums *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); + 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 = { +static struct ums ums_dev = { .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. - }, + .name = "UMS disk", + .offset = UMS_START_SECTOR, + .part_size = UMS_NUM_SECTORS, }; -struct ums_board_info *board_ums_init(unsigned int dev_num, unsigned int offset, - unsigned int part_size) +struct ums *ums_init(unsigned int dev_num) { - struct mmc *mmc; + struct mmc *mmc = NULL; 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; + ums_dev.mmc = mmc; - return &ums_board; + return &ums_dev; } #endif diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index f583caf..f6ceba7 100644 --- a/common/cmd_usb_mass_storage.c +++ b/common/cmd_usb_mass_storage.c @@ -22,28 +22,26 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag, 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; - } + if (dev_num) + return CMD_RET_USAGE; 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; + return CMD_RET_FAILURE; } - 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; + struct ums *ums = ums_init(dev_num); + if (!ums) { + printf("MMC: %u no such device\n", dev_num); + 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"); @@ -62,13 +60,10 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag, } 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/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index b34068a..3b77047 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -444,7 +444,7 @@ 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) @@ -760,14 +760,14 @@ 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, @@ -934,13 +934,13 @@ 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, @@ -962,6 +962,8 @@ 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; @@ -1048,14 +1050,13 @@ 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, @@ -1103,7 +1104,7 @@ 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; } @@ -2758,9 +2759,9 @@ 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/storage_common.c b/drivers/usb/gadget/storage_common.c index 866e7c7..c2c5424 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; /*-------------------------------------------------------------------------*/ @@ -581,7 +580,7 @@ static int fsg_lun_open(struct fsg_lun *curlun, const char *filename) /* R/W if we can, R/O if we must */ ro = curlun->initially_ro; - ums_info->get_capacity(&(ums_info->ums_dev), &size); + ums->get_capacity(ums, &size); if (size < 0) { printf("unable to find file size: %s\n", filename); rc = (int) size; diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h index 13f535c..674ca70 100644 --- a/include/usb_mass_storage.h +++ b/include/usb_mass_storage.h @@ -9,32 +9,35 @@ #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, + void (*get_capacity)(struct ums *ums_dev, long long int *capacity); const char *name; - struct ums_device ums_dev; + struct mmc *mmc; + int offset; + int part_size; }; -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 -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH v2 1/5] usb: ums: code refactoring to improve reusability on other boards. 2013-10-23 12:30 ` [U-Boot] [PATCH v2 1/5] usb: ums: code refactoring to improve reusability on other boards Przemyslaw Marczak @ 2013-10-27 18:18 ` Marek Vasut 2013-10-28 7:38 ` Lukasz Majewski 0 siblings, 1 reply; 22+ messages in thread From: Marek Vasut @ 2013-10-27 18:18 UTC (permalink / raw) To: u-boot Dear Przemyslaw Marczak, > This patch introduces some cleanups to ums code. Changes: > > ums common: > - introduce UMS_START_SECTOR and UMS_NUM_SECTORS as defined in > usb_mass_storage.h both default values as 0 if board config > doesn't define them > > common cleanup changes: > - change name of struct "ums_board_info" to "ums" > - "ums_device" fields are moved to struct ums and "dev_num" is removed > - change function name: board_ums_init to ums_init > - remove "extern" prefixes from usb_mass_storage.h > > cmd_usb_mass_storage: > - change error() to printf() if need to print info message > - change return values to command_ret_t type at ums command code > - add command usage string > > Changes v2: > ums common: > - always returns number of read/write sectors > - coding style clean-up > ums gadget: > - calculate amount of read/write from device returned value. Hi Lukasz, can I get ack/nak on the series? Thanks! Best regards, Marek Vasut ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH v2 1/5] usb: ums: code refactoring to improve reusability on other boards. 2013-10-27 18:18 ` Marek Vasut @ 2013-10-28 7:38 ` Lukasz Majewski 2013-10-28 8:47 ` Marek Vasut 0 siblings, 1 reply; 22+ messages in thread From: Lukasz Majewski @ 2013-10-28 7:38 UTC (permalink / raw) To: u-boot Hi Marek, > Dear Przemyslaw Marczak, > > > This patch introduces some cleanups to ums code. Changes: > > > > ums common: > > - introduce UMS_START_SECTOR and UMS_NUM_SECTORS as defined in > > usb_mass_storage.h both default values as 0 if board config > > doesn't define them > > > > common cleanup changes: > > - change name of struct "ums_board_info" to "ums" > > - "ums_device" fields are moved to struct ums and "dev_num" is > > removed > > - change function name: board_ums_init to ums_init > > - remove "extern" prefixes from usb_mass_storage.h > > > > cmd_usb_mass_storage: > > - change error() to printf() if need to print info message > > - change return values to command_ret_t type at ums command code > > - add command usage string > > > > Changes v2: > > ums common: > > - always returns number of read/write sectors > > - coding style clean-up > > ums gadget: > > - calculate amount of read/write from device returned value. > > Hi Lukasz, can I get ack/nak on the series? Thanks! For the whole series: Acked-by: Lukasz Majewski <l.majewski@samsung.com> > > Best regards, > Marek Vasut -- Best regards, Lukasz Majewski Samsung R&D Institute Poland (SRPOL) | Linux Platform Group ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH v2 1/5] usb: ums: code refactoring to improve reusability on other boards. 2013-10-28 7:38 ` Lukasz Majewski @ 2013-10-28 8:47 ` Marek Vasut 0 siblings, 0 replies; 22+ messages in thread From: Marek Vasut @ 2013-10-28 8:47 UTC (permalink / raw) To: u-boot Hi Lukasz, Przemyslaw, > Hi Marek, > > > Dear Przemyslaw Marczak, > > > > > This patch introduces some cleanups to ums code. Changes: > > > > > > ums common: > > > - introduce UMS_START_SECTOR and UMS_NUM_SECTORS as defined in > > > > > > usb_mass_storage.h both default values as 0 if board config > > > doesn't define them > > > > > > common cleanup changes: > > > - change name of struct "ums_board_info" to "ums" > > > - "ums_device" fields are moved to struct ums and "dev_num" is > > > removed > > > - change function name: board_ums_init to ums_init > > > - remove "extern" prefixes from usb_mass_storage.h > > > > > > cmd_usb_mass_storage: > > > - change error() to printf() if need to print info message > > > - change return values to command_ret_t type at ums command code > > > - add command usage string > > > > > > Changes v2: > > > ums common: > > > - always returns number of read/write sectors > > > - coding style clean-up > > > ums gadget: > > > - calculate amount of read/write from device returned value. > > > > Hi Lukasz, can I get ack/nak on the series? Thanks! > > For the whole series: > > Acked-by: Lukasz Majewski <l.majewski@samsung.com> Applied all. Thanks! Best regards, Marek Vasut ^ permalink raw reply [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH v2 2/5] usb: ums: allows using every mmc device with ums. 2013-10-23 12:30 ` [U-Boot] [PATCH v2 0/5] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 1/5] usb: ums: code refactoring to improve reusability on other boards Przemyslaw Marczak @ 2013-10-23 12:30 ` Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 3/5] usb: ums: fix disk capacity miscalculation and code cleanup Przemyslaw Marczak ` (2 subsequent siblings) 4 siblings, 0 replies; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-23 12:30 UTC (permalink / raw) To: u-boot Before this change ums command only allowed use of mmc 0. Now this argument can be set. Changes: - remove mmc device number checking because it is always positive number - remove printing "no such device" - it is done by find_mmc_device() Change-Id: I767e45151ad515c7bef19e6c13087374f5e23c11 Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marex@denx.de> --- common/cmd_usb_mass_storage.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index f6ceba7..4d3bbd8 100644 --- a/common/cmd_usb_mass_storage.c +++ b/common/cmd_usb_mass_storage.c @@ -20,10 +20,11 @@ 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) - return CMD_RET_USAGE; + 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)); @@ -32,12 +33,6 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag, return CMD_RET_FAILURE; } - struct ums *ums = ums_init(dev_num); - if (!ums) { - printf("MMC: %u no such device\n", dev_num); - return CMD_RET_FAILURE; - } - int rc = fsg_init(ums); if (rc) { error("fsg_init failed"); -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH v2 3/5] usb: ums: fix disk capacity miscalculation and code cleanup 2013-10-23 12:30 ` [U-Boot] [PATCH v2 0/5] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 1/5] usb: ums: code refactoring to improve reusability on other boards Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 2/5] usb: ums: allows using every mmc device with ums Przemyslaw Marczak @ 2013-10-23 12:30 ` Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 4/5] usb: ums: move ums code from trats to Samsung common directory Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 5/5] usb: ums: add ums exit feature by ctrl+c or by detach usb cable Przemyslaw Marczak 4 siblings, 0 replies; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-23 12:30 UTC (permalink / raw) To: u-boot This patch prevents: - ums disk capacity miscalculation because of integer overflow Changes v2: - Prevents passing zero size disk capacity to ums gadget driver - Change function ums_get_capacity() to ums_disk_init() and do ums disk initialization before gadget init - Remove unnecessary code from mass storage driver Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marex@denx.de> --- board/samsung/trats/trats.c | 49 +++++++++++++++++++++++------------ drivers/usb/gadget/storage_common.c | 26 +++---------------- include/usb_mass_storage.h | 6 ++--- 3 files changed, 37 insertions(+), 44 deletions(-) diff --git a/board/samsung/trats/trats.c b/board/samsung/trats/trats.c index 0b58b00..7e0e31e 100644 --- a/board/samsung/trats/trats.c +++ b/board/samsung/trats/trats.c @@ -778,7 +778,7 @@ static int ums_read_sector(struct ums *ums_dev, ulong start, lbaint_t blkcnt, void *buf) { block_dev_desc_t *block_dev = &ums_dev->mmc->block_dev; - lbaint_t blkstart = start + ums_dev->offset; + lbaint_t blkstart = start + ums_dev->start_sector; int dev_num = block_dev->dev; return block_dev->block_read(dev_num, blkstart, blkcnt, buf); @@ -788,30 +788,47 @@ 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->offset; + 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 void ums_get_capacity(struct ums *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 ums_dev = { .read_sector = ums_read_sector, .write_sector = ums_write_sector, - .get_capacity = ums_get_capacity, .name = "UMS disk", - .offset = UMS_START_SECTOR, - .part_size = UMS_NUM_SECTORS, }; +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; @@ -820,8 +837,6 @@ struct ums *ums_init(unsigned int dev_num) if (!mmc) return NULL; - ums_dev.mmc = mmc; - - return &ums_dev; + return ums_disk_init(mmc); } #endif diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c index c2c5424..02803df 100644 --- a/drivers/usb/gadget/storage_common.c +++ b/drivers/usb/gadget/storage_common.c @@ -572,36 +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->get_capacity(ums, &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/include/usb_mass_storage.h b/include/usb_mass_storage.h index 674ca70..9df3adc 100644 --- a/include/usb_mass_storage.h +++ b/include/usb_mass_storage.h @@ -25,12 +25,10 @@ struct ums { ulong start, lbaint_t blkcnt, void *buf); int (*write_sector)(struct ums *ums_dev, ulong start, lbaint_t blkcnt, const void *buf); - void (*get_capacity)(struct ums *ums_dev, - long long int *capacity); + unsigned int start_sector; + unsigned int num_sectors; const char *name; struct mmc *mmc; - int offset; - int part_size; }; extern struct ums *ums; -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH v2 4/5] usb: ums: move ums code from trats to Samsung common directory 2013-10-23 12:30 ` [U-Boot] [PATCH v2 0/5] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak ` (2 preceding siblings ...) 2013-10-23 12:30 ` [U-Boot] [PATCH v2 3/5] usb: ums: fix disk capacity miscalculation and code cleanup Przemyslaw Marczak @ 2013-10-23 12:30 ` Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 5/5] usb: ums: add ums exit feature by ctrl+c or by detach usb cable Przemyslaw Marczak 4 siblings, 0 replies; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-23 12:30 UTC (permalink / raw) To: u-boot UMS init was implemented in trats board file but mostly it comprises common code. Due to that it has been moved to common/ums.c to avoid code duplication in the future. Changes: - move ums initialization code from trats to common/ums.c - remove unused CONFIG_USB_GADGET_MASS_STORAGE from trats.h Changes v2: - move this patch at the top of code cleanups patches Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marex@denx.de> Cc: Minkyu Kang <mk7.kang@samsung.com> --- board/samsung/common/Makefile | 1 + board/samsung/common/ums.c | 76 +++++++++++++++++++++++++++++++++++++++++ board/samsung/trats/trats.c | 68 ------------------------------------ include/configs/trats.h | 2 -- 4 files changed, 77 insertions(+), 70 deletions(-) create mode 100644 board/samsung/common/ums.c diff --git a/board/samsung/common/Makefile b/board/samsung/common/Makefile index ad7564c..d122169 100644 --- a/board/samsung/common/Makefile +++ b/board/samsung/common/Makefile @@ -11,6 +11,7 @@ LIB = $(obj)libsamsung.o COBJS-$(CONFIG_SOFT_I2C_MULTI_BUS) += multi_i2c.o COBJS-$(CONFIG_THOR_FUNCTION) += thor.o +COBJS-$(CONFIG_CMD_USB_MASS_STORAGE) += ums.o SRCS := $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(COBJS-y)) diff --git a/board/samsung/common/ums.c b/board/samsung/common/ums.c new file mode 100644 index 0000000..dc155ad --- /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 7e0e31e..db5828d 100644 --- a/board/samsung/trats/trats.c +++ b/board/samsung/trats/trats.c @@ -772,71 +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 *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); -} -#endif diff --git a/include/configs/trats.h b/include/configs/trats.h index f5bb6aa..3e67229 100644 --- a/include/configs/trats.h +++ b/include/configs/trats.h @@ -323,9 +323,7 @@ #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 -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 22+ messages in thread
* [U-Boot] [PATCH v2 5/5] usb: ums: add ums exit feature by ctrl+c or by detach usb cable 2013-10-23 12:30 ` [U-Boot] [PATCH v2 0/5] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak ` (3 preceding siblings ...) 2013-10-23 12:30 ` [U-Boot] [PATCH v2 4/5] usb: ums: move ums code from trats to Samsung common directory Przemyslaw Marczak @ 2013-10-23 12:30 ` Przemyslaw Marczak 4 siblings, 0 replies; 22+ messages in thread From: Przemyslaw Marczak @ 2013-10-23 12:30 UTC (permalink / raw) To: u-boot This patch allows exiting from UMS mode to u-boot prompt by detaching usb cable or by pressing ctrl+c. Add new config: CONFIG_USB_CABLE_CHECK. If defined then board file should provide function: usb_cable_connected() (include/usb.h) that return 1 if cable is connected and 0 otherwise. Changes v2: - add a note to the README Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marex@denx.de> --- README | 7 +++++++ common/cmd_usb_mass_storage.c | 21 +++++++++++++-------- drivers/usb/gadget/f_mass_storage.c | 24 +++++++++++++++++++++--- include/usb.h | 10 ++++++++++ 4 files changed, 51 insertions(+), 11 deletions(-) diff --git a/README b/README index cee8e2f..75329b1 100644 --- a/README +++ b/README @@ -1362,6 +1362,13 @@ 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/common/cmd_usb_mass_storage.c b/common/cmd_usb_mass_storage.c index 4d3bbd8..99487f4 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> @@ -42,16 +43,20 @@ int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag, 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(); diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 3b77047..d290a56 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -245,6 +245,7 @@ #include <config.h> #include <malloc.h> #include <common.h> +#include <usb.h> #include <linux/err.h> #include <linux/usb/ch9.h> @@ -678,6 +679,18 @@ 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; @@ -2390,6 +2403,7 @@ 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 { @@ -2399,12 +2413,16 @@ 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; diff --git a/include/usb.h b/include/usb.h index 17fb68c..8c1789f 100644 --- a/include/usb.h +++ b/include/usb.h @@ -197,6 +197,16 @@ int board_usb_init(int index, enum board_usb_init_type init); */ int board_usb_cleanup(int index, enum board_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 -- 1.7.9.5 ^ permalink raw reply related [flat|nested] 22+ messages in thread
end of thread, other threads:[~2013-10-28 8:47 UTC | newest] Thread overview: 22+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-10-16 13:21 [U-Boot] [PATCH 0/4] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak 2013-10-16 13:21 ` [U-Boot] [PATCH 1/4] usb: ums: move ums code from trats to Samsung common directory Przemyslaw Marczak 2013-10-17 17:39 ` Marek Vasut 2013-10-18 11:38 ` Przemyslaw Marczak 2013-10-18 13:58 ` Marek Vasut 2013-10-16 13:21 ` [U-Boot] [PATCH 2/4] usb: ums: code refactoring to improve reusability at other boards Przemyslaw Marczak 2013-10-16 13:21 ` [U-Boot] [PATCH 3/4] usb: ums: fix bug in partition capacity computation Przemyslaw Marczak 2013-10-17 17:41 ` Marek Vasut 2013-10-18 15:05 ` Przemyslaw Marczak 2013-10-19 0:57 ` Marek Vasut 2013-10-22 11:04 ` Przemyslaw Marczak 2013-10-16 13:21 ` [U-Boot] [PATCH 4/4] usb: ums: add ums exit feature by ctrl+c or by detach usb cable Przemyslaw Marczak 2013-10-17 17:43 ` Marek Vasut 2013-10-23 12:30 ` [U-Boot] [PATCH v2 0/5] USB: UMS: code refactoring and usage improvement Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 1/5] usb: ums: code refactoring to improve reusability on other boards Przemyslaw Marczak 2013-10-27 18:18 ` Marek Vasut 2013-10-28 7:38 ` Lukasz Majewski 2013-10-28 8:47 ` Marek Vasut 2013-10-23 12:30 ` [U-Boot] [PATCH v2 2/5] usb: ums: allows using every mmc device with ums Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 3/5] usb: ums: fix disk capacity miscalculation and code cleanup Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 4/5] usb: ums: move ums code from trats to Samsung common directory Przemyslaw Marczak 2013-10-23 12:30 ` [U-Boot] [PATCH v2 5/5] usb: ums: add ums exit feature by ctrl+c or by detach usb cable Przemyslaw Marczak
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