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authorRoman Kovalivskyi <roman.kovalivskyi@globallogic.com>2020-07-28 23:35:33 +0300
committerMarek Vasut <marex@denx.de>2020-09-01 14:47:43 +0200
commit2b2a771b40876c3db456705d5dcc5b60249d4075 (patch)
treea9ab46ae3a6769975306d315a431ffb73fe2217a /drivers/fastboot/fb_command.c
parent851737ab8922742732bea5f70407cb95cafcb3ee (diff)
fastboot: Add support for 'reboot fastboot' command
Android 10 adds support for dynamic partitions and in order to support this userspace fastboot must be used[1]. New tool fastbootd is included into recovery. Userspace fastboot works from recovery and is launched if: 1) - Dynamic partitioning is enabled 2) - Boot control block has 'boot-fastboot' value into command field The bootloader is expected to load and boot into the recovery image upon seeing boot-fastboot in the BCB command. Recovery then parses the BCB message and switches to fastbootd mode[2]. Please note that boot script is expected to handle 'boot-fastboot' command in BCB and load into recovery mode. Bootloader must support 'reboot fastboot' command which should reboot device into userspace fastboot to accomodate those changes[3]. Another command that bootloader must support[3] is 'reboot recovery'. This command should simply reboot device into recovery mode. [1] - https://source.android.com/devices/bootloader/fastbootd [2] - https://source.android.com/devices/bootloader/fastbootd#unified_fastboot_and_recovery [3] - https://source.android.com/devices/bootloader/fastbootd#modifications_to_the_bootloader Signed-off-by: Roman Kovalivskyi <roman.kovalivskyi@globallogic.com> Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com> Change-Id: I9d2bdc9a6f6f31ea98572fe155e1cc8341e9af76
Diffstat (limited to 'drivers/fastboot/fb_command.c')
-rw-r--r--drivers/fastboot/fb_command.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/fastboot/fb_command.c b/drivers/fastboot/fb_command.c
index 8ce5d32fb2..d3c578672d 100644
--- a/drivers/fastboot/fb_command.c
+++ b/drivers/fastboot/fb_command.c
@@ -37,6 +37,8 @@ static void flash(char *, char *);
static void erase(char *, char *);
#endif
static void reboot_bootloader(char *, char *);
+static void reboot_fastbootd(char *, char *);
+static void reboot_recovery(char *, char *);
#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_FORMAT)
static void oem_format(char *, char *);
#endif
@@ -79,6 +81,14 @@ static const struct {
.command = "reboot-bootloader",
.dispatch = reboot_bootloader
},
+ [FASTBOOT_COMMAND_REBOOT_FASTBOOTD] = {
+ .command = "reboot-fastboot",
+ .dispatch = reboot_fastbootd
+ },
+ [FASTBOOT_COMMAND_REBOOT_RECOVERY] = {
+ .command = "reboot-recovery",
+ .dispatch = reboot_recovery
+ },
[FASTBOOT_COMMAND_SET_ACTIVE] = {
.command = "set_active",
.dispatch = okay
@@ -313,6 +323,34 @@ static void reboot_bootloader(char *cmd_parameter, char *response)
fastboot_okay(NULL, response);
}
+/**
+ * reboot_fastbootd() - Sets reboot fastboot flag.
+ *
+ * @cmd_parameter: Pointer to command parameter
+ * @response: Pointer to fastboot response buffer
+ */
+static void reboot_fastbootd(char *cmd_parameter, char *response)
+{
+ if (fastboot_set_reboot_flag(FASTBOOT_REBOOT_REASON_FASTBOOTD))
+ fastboot_fail("Cannot set fastboot flag", response);
+ else
+ fastboot_okay(NULL, response);
+}
+
+/**
+ * reboot_recovery() - Sets reboot recovery flag.
+ *
+ * @cmd_parameter: Pointer to command parameter
+ * @response: Pointer to fastboot response buffer
+ */
+static void reboot_recovery(char *cmd_parameter, char *response)
+{
+ if (fastboot_set_reboot_flag(FASTBOOT_REBOOT_REASON_RECOVERY))
+ fastboot_fail("Cannot set recovery flag", response);
+ else
+ fastboot_okay(NULL, response);
+}
+
#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_FORMAT)
/**
* oem_format() - Execute the OEM format command