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thor: add support for the dfu_alt_info reintialization from the flashed script

Reinitialize dfu_env_entities after flashing the 'SCRIPT' entity to
ensure that the potential changes to the 'dfu_alt_info' environment
variable are applied.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Marek Szyprowski 3 years ago
parent
commit
e47431aa5c
3 changed files with 17 additions and 7 deletions
  1. 12 7
      cmd/thordown.c
  2. 3 0
      drivers/usb/gadget/f_thor.c
  3. 2 0
      include/thor.h

+ 12 - 7
cmd/thordown.c

@@ -52,13 +52,18 @@ int do_thor_down(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 		goto exit;
 	}
 
-	ret = thor_handle();
-	if (ret) {
-		pr_err("THOR failed: %d\n", ret);
-		ret = CMD_RET_FAILURE;
-		goto exit;
-	}
-
+	do {
+		ret = thor_handle();
+		if (ret == THOR_DFU_REINIT_NEEDED) {
+			dfu_free_entities();
+			ret = dfu_init_env_entities(interface, devstring);
+		}
+		if (ret) {
+			pr_err("THOR failed: %d\n", ret);
+			ret = CMD_RET_FAILURE;
+			goto exit;
+		}
+	} while (ret == 0);
 exit:
 	g_dnl_unregister();
 	usb_gadget_release(controller_index);

+ 3 - 0
drivers/usb/gadget/f_thor.c

@@ -30,6 +30,7 @@
 #include <linux/usb/cdc.h>
 #include <g_dnl.h>
 #include <dfu.h>
+#include <thor.h>
 
 #include "f_thor.h"
 
@@ -735,6 +736,8 @@ int thor_handle(void)
 			printf("%s: No data received!\n", __func__);
 			break;
 		}
+		if (dfu_reinit_needed)
+			return THOR_DFU_REINIT_NEEDED;
 	}
 
 	return 0;

+ 2 - 0
include/thor.h

@@ -12,6 +12,8 @@
 
 #include <linux/usb/composite.h>
 
+#define THOR_DFU_REINIT_NEEDED	0xFFFFFFFE
+
 int thor_handle(void);
 int thor_init(void);
 int thor_add(struct usb_configuration *c);