diff options
| author | Alexey Firago | 2015-02-25 17:10:47 +0300 |
|---|---|---|
| committer | Lukasz Majewski | 2015-04-14 10:19:05 +0200 |
| commit | e2ec3e461250fc82781c8a83387c140c6fc30a5a (patch) | |
| tree | 07f8e92a3773a5ba6aa0e820135901e85dddc3e6 /drivers/usb/gadget | |
| parent | 8a41802f21cc270cb00ac7dc1263a4c136c9a31c (diff) | |
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 <alexey_firago@mentor.com>
Tested-by: Steve Rae <srae@broadcom.com>
[Test HW: bcm28155_ap board]
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/f_fastboot.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c index 751ec9e0107..206b6d17aea 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"); } |