common: fastboot: support oem format command

This patch implements fastboot's oem format command. The default
partition format is gpt and dos partition will be supported later.

The "fastboot oem format" executes "gpt write mmc $partitions" command.
Thus, you should define the "$partitions" environment variable. After
creating gpt partition, the board will be rebooted automatically and
enter fastboot again.

Change-Id: Ia05194d150e3ccd7ea3ee68f2d67cbc6b5414d09
Signed-off-by: Chanho Park <chanho61.park@samsung.com>

diff --git a/common/cmd_fastboot.c b/common/cmd_fastboot.c
index 186c0d8629e84de8b56d8af6e0f7da4924e47680..d370c8e08fdb8b1a0898a37176fe4669e6275a8f 100644 (file)
--- a/common/cmd_fastboot.c
+++ b/common/cmd_fastboot.c
@@ -1372,10 +1372,42 @@ static int process_cmd_flash(const char *cmdbuf, char *response)
        return 0;
 }
 
+static int process_cmd_format(const char *cmdbuf, char *response)
+{
+       char run_cmd[32];
+       int status = -1;
+       char *part_type = getenv("part_type");
+       if (!part_type)
+               part_type = "gpt";
+
+       if (!strcmp(part_type, "gpt")) {
+               sprintf(run_cmd, "gpt write mmc 0 $partitions");
+               status = run_command(run_cmd, 0);
+       }
+       return status;
+}
+
 static int process_cmd_oem(const char *cmdbuf, char *response)
 {
-       sprintf(response, "INFOunknown OEM command");
-       fastboot_tx_status(response, strlen(response), FASTBOOT_TX_ASYNC);
+       if (!strcmp("format", cmdbuf + 4)) {
+               if (process_cmd_format(cmdbuf, response) == -1) {
+                       sprintf(response, "FAILpartition format");
+                       fastboot_tx_status(response, strlen(response),
+                                          FASTBOOT_TX_ASYNC);
+                       return -1;
+               } else {
+                       sprintf(response, "OKAY");
+                       fastboot_tx_status(response, strlen(response),
+                                       FASTBOOT_TX_SYNC);
+#ifdef CONFIG_FASTBOOT_AUTO_REBOOT
+                       do_reset_fastboot();
+#endif
+               }
+       } else {
+               sprintf(response, "INFOunknown OEM command");
+               fastboot_tx_status(response, strlen(response),
+                                  FASTBOOT_TX_ASYNC);
+       }
 
        sprintf(response, "OKAY");
        fastboot_tx_status(response, strlen(response), FASTBOOT_TX_ASYNC);