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authorLukasz Majewski <l.majewski@samsung.com>2013-07-18 13:19:14 +0200
committerMarek Vasut <marex@denx.de>2013-07-29 23:01:33 +0200
commit6bed7ce569fc409843ff2537937ea1b5fd0f694d (patch)
treebb17efd44c3e2f69ae3dd0f0a0a6bd31a06a2204
parent6dd30af0fa5c2f509f6f789789151268bdfcde0c (diff)
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dfu: Implementation of target reset after communication with dfu-util's -R switch
This patch extends dfu code to support transmission with -R switch specified at dfu-util. When -R is specified, the extra USB_REQ_DFU_DETACH request is sent after successful data transmission. Then dfu resources are released and reset command is issued. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
-rw-r--r--common/cmd_dfu.c14
-rw-r--r--drivers/dfu/dfu.c11
-rw-r--r--drivers/usb/gadget/f_dfu.c2
-rw-r--r--include/dfu.h2
4 files changed, 28 insertions, 1 deletions
diff --git a/common/cmd_dfu.c b/common/cmd_dfu.c
index db066ac..793c422 100644
--- a/common/cmd_dfu.c
+++ b/common/cmd_dfu.c
@@ -19,8 +19,8 @@ static int do_dfu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
const char *str_env;
char *s = "dfu";
+ int ret, i = 0;
char *env_bkp;
- int ret;
if (argc < 3)
return CMD_RET_USAGE;
@@ -49,6 +49,15 @@ static int do_dfu(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
g_dnl_register(s);
while (1) {
+ if (dfu_reset())
+ /*
+ * This extra number of usb_gadget_handle_interrupts()
+ * calls is necessary to assure correct transmission
+ * completion with dfu-util
+ */
+ if (++i == 10)
+ goto exit;
+
if (ctrlc())
goto exit;
@@ -60,6 +69,9 @@ done:
dfu_free_entities();
free(env_bkp);
+ if (dfu_reset())
+ run_command("reset", 0);
+
return CMD_RET_SUCCESS;
}
diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index b8870ec..d73d510 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -16,9 +16,20 @@
#include <linux/list.h>
#include <linux/compiler.h>
+static bool dfu_reset_request;
static LIST_HEAD(dfu_list);
static int dfu_alt_num;
+bool dfu_reset(void)
+{
+ return dfu_reset_request;
+}
+
+void dfu_trigger_reset()
+{
+ dfu_reset_request = true;
+}
+
static int dfu_find_alt_num(const char *s)
{
int i = 0;
diff --git a/drivers/usb/gadget/f_dfu.c b/drivers/usb/gadget/f_dfu.c
index 5321a68..37d04a1 100644
--- a/drivers/usb/gadget/f_dfu.c
+++ b/drivers/usb/gadget/f_dfu.c
@@ -312,6 +312,8 @@ static int state_dfu_idle(struct f_dfu *f_dfu,
DFU_STATE_dfuMANIFEST_WAIT_RST;
to_runtime_mode(f_dfu);
f_dfu->dfu_state = DFU_STATE_appIDLE;
+
+ dfu_trigger_reset();
break;
default:
f_dfu->dfu_state = DFU_STATE_dfuERROR;
diff --git a/include/dfu.h b/include/dfu.h
index 6c7d227..1d4006d 100644
--- a/include/dfu.h
+++ b/include/dfu.h
@@ -109,6 +109,8 @@ const char *dfu_get_dev_type(enum dfu_device_type t);
const char *dfu_get_layout(enum dfu_layout l);
struct dfu_entity *dfu_get_entity(int alt);
char *dfu_extract_token(char** e, int *n);
+void dfu_trigger_reset(void);
+bool dfu_reset(void);
int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);