From e2ec3e461250fc82781c8a83387c140c6fc30a5a Mon Sep 17 00:00:00 2001 From: Alexey Firago Date: Wed, 25 Feb 2015 17:10:47 +0300 Subject: fastboot: add support for reboot-bootloader command 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 Tested-by: Steve Rae [Test HW: bcm28155_ap board] --- drivers/usb/gadget/f_fastboot.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c index 751ec9e010..206b6d17ae 100644 --- a/drivers/usb/gadget/f_fastboot.c +++ b/drivers/usb/gadget/f_fastboot.c @@ -123,6 +123,7 @@ static struct usb_gadget_strings *fastboot_strings[] = { }; static void rx_handler_command(struct usb_ep *ep, struct usb_request *req); +static int strcmp_l1(const char *s1, const char *s2); static void fastboot_complete(struct usb_ep *ep, struct usb_request *req) { @@ -326,8 +327,20 @@ static void compl_do_reset(struct usb_ep *ep, struct usb_request *req) do_reset(NULL, 0, 0, NULL); } +int __weak fb_set_reboot_flag(void) +{ + return -ENOSYS; +} + static void cb_reboot(struct usb_ep *ep, struct usb_request *req) { + char *cmd = req->buf; + if (!strcmp_l1("reboot-bootloader", cmd)) { + if (fb_set_reboot_flag()) { + fastboot_tx_write_str("FAILCannot set reboot flag"); + return; + } + } fastboot_func->in_req->complete = compl_do_reset; fastboot_tx_write_str("OKAY"); } -- cgit v1.2.1