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 --- common/cmd_dfu.c | 14 +++++++++++++- drivers/dfu/dfu.c | 11 +++++++++++ drivers/usb/gadget/f_dfu.c | 2 ++ include/dfu.h | 2 ++ 4 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/common/cmd_dfu.c b/common/cmd_dfu.c index 83ef324..2d5db63 100644 --- a/common/cmd_dfu.c +++ b/common/cmd_dfu.c @@ -31,8 +31,8 @@ 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; @@ -61,6 +61,15 @@ 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;

@@ -72,6 +81,9 @@ 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 0521752..a06db2f 100644 --- a/drivers/dfu/dfu.c +++ b/drivers/dfu/dfu.c @@ -28,9 +28,20 @@ #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 d7ae0c0..e869703 100644 --- a/drivers/usb/gadget/f_dfu.c +++ b/drivers/usb/gadget/f_dfu.c @@ -324,6 +324,8 @@ 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 124653c..b17b80d 100644 --- a/include/dfu.h +++ b/include/dfu.h @@ -121,6 +121,8 @@ 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);