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fastboot: add support for continue command

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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]
This commit is contained in:
Rob Herring 2014-12-10 14:43:04 -06:00 committed by Lukasz Majewski
parent fe1b28c9f0
commit 267abc626d
2 changed files with 18 additions and 0 deletions
common
cmd_fastboot.c
drivers/usb/gadget
f_fastboot.c

4
common/cmd_fastboot.c
View File

@ -15,17 +15,21 @@ static int do_fastboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
int ret;
g_dnl_clear_detach();
ret = g_dnl_register("usb_dnl_fastboot");
if (ret)
return ret;
while (1) {
if (g_dnl_detach())
break;
if (ctrlc())
break;
usb_gadget_handle_interrupts();
}
g_dnl_unregister();
g_dnl_clear_detach();
return CMD_RET_SUCCESS;
}

14
drivers/usb/gadget/f_fastboot.c
View File

@ -480,6 +480,17 @@ static void cb_boot(struct usb_ep *ep, struct usb_request *req)
fastboot_tx_write_str("OKAY");
}
static void do_exit_on_complete(struct usb_ep *ep, struct usb_request *req)
{
g_dnl_trigger_detach();
}
static void cb_continue(struct usb_ep *ep, struct usb_request *req)
{
fastboot_func->in_req->complete = do_exit_on_complete;
fastboot_tx_write_str("OKAY");
}
#ifdef CONFIG_FASTBOOT_FLASH
static void cb_flash(struct usb_ep *ep, struct usb_request *req)
{
@ -520,6 +531,9 @@ static const struct cmd_dispatch_info cmd_dispatch_info[] = {
}, {
.cmd = "boot",
.cb = cb_boot,
}, {
.cmd = "continue",
.cb = cb_continue,
},
#ifdef CONFIG_FASTBOOT_FLASH
{