[U-Boot] [PATCH v2] dfu, nand: add medium specific polltimeout function

[Heiko Schocher]

add a possibility to add a medium specific polltimeout
function. So it is possible to define different
poll timeouts.

Used on nand medium, for setting the DFU_MANIFEST_POLL_TIMEOUT
only on nand ubi partitions, which is currently the only
usecase.

Signed-off-by: Heiko Schocher <hs at denx.de>
Cc: Lukasz Majewski <l.majewski at samsung.com>
Cc: Kyungmin Park <kyungmin.park at samsung.com>
Cc: Marek Vasut <marex at denx.de>
Cc: Pantelis Antoniou <panto at antoniou-consulting.com>

---
- changes for v2:
  - add comment from Pantelis Antoniou
    - add simple accessor for getting the poll timeout
      dfu_get_manifest_timeout()

 drivers/dfu/dfu_nand.c     | 13 +++++++++++++
 drivers/usb/gadget/f_dfu.c | 10 +++++++++-
 include/dfu.h              |  1 +
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/drivers/dfu/dfu_nand.c b/drivers/dfu/dfu_nand.c
index 2d07097..ccdbef6 100644
--- a/drivers/dfu/dfu_nand.c
+++ b/drivers/dfu/dfu_nand.c
@@ -163,6 +163,18 @@ static int dfu_flush_medium_nand(struct dfu_entity *dfu)
 	return ret;
 }
 
+unsigned int dfu_polltimeout_nand(struct dfu_entity *dfu)
+{
+	/*
+	 * Currently, Poll Timeout != 0 is only needed on nand
+	 * ubi partition, as the not used sectors need an erase
+	 */
+	if (dfu->data.nand.ubi)
+		return DFU_MANIFEST_POLL_TIMEOUT;
+
+	return DFU_DEFAULT_POLL_TIMEOUT;
+}
+
 int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
 {
 	char *st;
@@ -211,6 +223,7 @@ int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
 	dfu->read_medium = dfu_read_medium_nand;
 	dfu->write_medium = dfu_write_medium_nand;
 	dfu->flush_medium = dfu_flush_medium_nand;
+	dfu->poll_timeout = dfu_polltimeout_nand;
 
 	/* initial state */
 	dfu->inited = 0;
diff --git a/drivers/usb/gadget/f_dfu.c b/drivers/usb/gadget/f_dfu.c
index de75ff1..e32b742 100644
--- a/drivers/usb/gadget/f_dfu.c
+++ b/drivers/usb/gadget/f_dfu.c
@@ -174,10 +174,17 @@ static void dnload_request_flush(struct usb_ep *ep, struct usb_request *req)
 		  req->length, f_dfu->blk_seq_num);
 }
 
+static inline int dfu_get_manifest_timeout(struct dfu_entity *dfu)
+{
+	return dfu->poll_timeout ? dfu->poll_timeout(dfu) :
+		DFU_MANIFEST_POLL_TIMEOUT;
+}
+
 static void handle_getstatus(struct usb_request *req)
 {
 	struct dfu_status *dstat = (struct dfu_status *)req->buf;
 	struct f_dfu *f_dfu = req->context;
+	struct dfu_entity *dfu = dfu_get_entity(f_dfu->altsetting);
 
 	dfu_set_poll_timeout(dstat, 0);
 
@@ -190,7 +197,8 @@ static void handle_getstatus(struct usb_request *req)
 		f_dfu->dfu_state = DFU_STATE_dfuMANIFEST;
 		break;
 	case DFU_STATE_dfuMANIFEST:
-		dfu_set_poll_timeout(dstat, DFU_MANIFEST_POLL_TIMEOUT);
+		dfu_set_poll_timeout(dstat, dfu_get_manifest_timeout(dfu));
+		break;
 	default:
 		break;
 	}
diff --git a/include/dfu.h b/include/dfu.h
index 6c71ecb..c7fd270 100644
--- a/include/dfu.h
+++ b/include/dfu.h
@@ -105,6 +105,7 @@ struct dfu_entity {
 			u64 offset, void *buf, long *len);
 
 	int (*flush_medium)(struct dfu_entity *dfu);
+	unsigned int (*poll_timeout)(struct dfu_entity *dfu);
 
 	struct list_head list;
 
-- 
1.8.3.1