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path: root/drivers/usb/gadget/f_fastboot.c
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2015-04-14fastboot: add support for reboot-bootloader commandAlexey Firago
The "fastboot reboot-bootloader" command is defined to re-enter into fastboot mode after rebooting into bootloader. This command is usually used after updating bootloader via fastboot. This commit implements only a generic side of the command - setting of the reset flag and then resetting. Setting of the reset flag is implemented using __weak fb_set_reboot_flag() function. The actual setting and checking of the reset flag should be implemented by a boot script and/or board/SoC specific code. Signed-off-by: Alexey Firago <alexey_firago@mentor.com> Tested-by: Steve Rae <srae@broadcom.com> [Test HW: bcm28155_ap board]
2015-02-25usb: gadget: fastboot: Set the Serial Number for Fastboot GadgetDileep Katta
Configure the serial number using the serial# environment variable during the fastboot bind. This enables "fastboot devices" to return the serial number for the attached devices. Signed-off-by: Dileep Katta <dileep.katta@linaro.org> Acked-by: Steve Rae <srae@broadcom.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-02-25fastboot: OUT transaction length must be aligned to wMaxPacketSizeDileep Katta
OUT transactions must be aligned to wMaxPacketSize for each transfer, or else transfer will not complete successfully. This patch modifies rx_bytes_expected to return a transfer length that is aligned to wMaxPacketSize. Note that the value of wMaxPacketSize and ep->maxpacket may not be the same value, and it is the value of wMaxPacketSize that should be used for alignment. wMaxPacketSize is passed depending on the speed of connection. Signed-off-by: Dileep Katta <dileep.katta@linaro.org> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-02-25usb: gadget: fastboot: Add fastboot eraseDileep Katta
Adds the fastboot erase functionality, to erase a partition specified by name. The erase is performed based on erase group size, to avoid erasing other partitions. The start address and the size is aligned to the erase group size for this. Currently only supports erasing from eMMC. Signed-off-by: Dileep Katta <dileep.katta@linaro.org> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
2015-02-25fastboot: add support for "oem format" commandRob Herring
Add "oem format" command to write partition table. This relies on the env variable partitions to contain the list of partitions as required by the gpt command. Note that this does not erase any data other than the partition table. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Steve Rae <srae@broadcom.com>
2015-02-25fastboot: add "fastboot oem" command supportMichael Scott
Add code stub to handle "fastboot oem __" command. As unlock is a common fastboot command, distinguish that it is not implemented. Signed-off-by: Michael Scott <michael.scott@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org> Tested-by: Steve Rae <srae@broadcom.com>
2014-12-18fastboot: add support for continue commandRob Herring
The fastboot continue command is defined to exit fastboot and continue autoboot. This commit implements the continue command and the exiting of fastboot only. Subsequent u-boot commands can be processed after exiting fastboot. Autoboot should implement a boot script such as "fastboot; mmc read <...>; bootm" to fully implement the fastboot continue function. Signed-off-by: Rob Herring <robh@kernel.org> Tested-by: Lukasz Majewski <l.majewski@samsung.com> [TestHW: Exynos4412-Trats2]
2014-10-06usb: gadget: fastboot: terminate commands with NULLEric Nelson
Without NULL termination, various commands will read past the end of input. In particular, this was noticed with error() calls in cb_getvar and simple_strtoul() in cb_download. Since the download callback happens elsewhere, the 4k buffer should always be sufficient to handle command arguments. Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
2014-10-06usb: gadget: fastboot: explicitly set radix of maximum download sizeEric Nelson
The processing of the max-download-size variable requires a radix specifier, or the fastboot host tool will interpret it as an octal number. See function get_target_sparse_limit() in file fastboot/fastboot.c in the AOSP: https://android.googlesource.com/platform/system/core/+/master Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
2014-10-06usb: gadget: fastboot: add max-download-size variableEric Nelson
Current Android Fastboot seems to use 'max-download-size' instead of 'downloadsize' variable to indicate the maximum size of sparse segments. See function get_target_sparse_limit() in file fastboot/fastboot.c in the AOSP: https://android.googlesource.com/platform/system/core/+/master Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
2014-10-06usb: gadget: fastboot: improve download progress barBo Shen
When download is ongoing, if the actual size of one transfer is not the same as BYTES_PER_DOT, which will cause the dot won't print anymore. Then it will let the user thinking it is stuck, actually it is transfering without dot printed. So, improve the method to show the progress bar (print dot). Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Marek Vasut <marex@denx.de>
2014-09-24usb/gadget: fastboot: minor cleanupSteve Rae
- update static function - additional debugging statements - update "fastboot command" information - add missing include file - update spelling Signed-off-by: Steve Rae <srae@broadcom.com>
2014-09-24usb/gadget: fastboot: add support for flash commandSteve Rae
- implement 'fastboot flash' for eMMC devices Signed-off-by: Steve Rae <srae@broadcom.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Reviewed-by: Marek Vasut <marex@denx.de>
2014-06-25usb: fastboot: fix potential buffer overflowJeroen Hofstee
cb_getvar tries to prevent overflowing the response buffer by using strncat. But strncat takes the number of data bytes copied as a limit not the total buffer length so it can still overflow. Pass the correct value instead. cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> cc: Rob Herring <robh@kernel.org> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-05-08usb/gadget: add the fastboot gadgetSebastian Siewior
This patch contains an implementation of the fastboot protocol on the device side and documentation. This is based on USB download gadget infrastructure. The fastboot function implements the getvar, reboot, download and reboot commands. What is missing is the flash handling i.e. writting the image to media. v3 (Rob Herring): This is based on http://patchwork.ozlabs.org/patch/126798/ with the following changes: - Rebase to current mainline and updates for current gadget API - Use SPDX identifiers for licenses - Traced the history and added missing copyright to cmd_fastboot.c - Use load_addr/load_size for transfer buffer - Allow vendor strings to be optional - Set vendor/product ID from config defines - Allow Ctrl-C to exit fastboot mode v4: - Major re-write to use the USB download gadget. Consolidated function code to a single file. - Moved globals into single struct. - Use puts and putc as appropriate. - Added CONFIG_USB_FASTBOOT_BUF_ADDR and CONFIG_USB_FASTBOOT_BUF_SIZE to set the fastboot transfer buffer. v5: - Add CONFIG option documentation to README - Rebase using new downloader registration Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Rob Herring <robh@kernel.org>