dfu: add dfu_write_by_alt()
This function is a variant of dfu_write_by_name() and takes a DFU alt
setting number for dfu configuration.
It will be utilised to implement UEFI capsule management protocol for
raw image in a later commit.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/include/dfu.h b/include/dfu.h
index eaf4bfc..a767ade 100644
--- a/include/dfu.h
+++ b/include/dfu.h
@@ -496,6 +496,7 @@
}
#endif
+#if CONFIG_IS_ENABLED(DFU_WRITE_ALT)
/**
* dfu_write_by_name() - write data to DFU medium
* @dfu_entity_name: Name of DFU entity to write
@@ -509,9 +510,24 @@
*
* Return: 0 - on success, error code - otherwise
*/
-#if CONFIG_IS_ENABLED(DFU_WRITE_ALT)
int dfu_write_by_name(char *dfu_entity_name, void *addr,
unsigned int len, char *interface, char *devstring);
+
+/**
+ * dfu_write_by_alt() - write data to DFU medium
+ * @dfu_alt_num: DFU alt setting number
+ * @addr: Address of data buffer to write
+ * @len: Number of bytes
+ * @interface: Destination DFU medium (e.g. "mmc")
+ * @devstring: Instance number of destination DFU medium (e.g. "1")
+ *
+ * This function is storing data received on DFU supported medium which
+ * is specified by @dfu_alt_name.
+ *
+ * Return: 0 - on success, error code - otherwise
+ */
+int dfu_write_by_alt(int dfu_alt_num, void *addr, unsigned int len,
+ char *interface, char *devstring);
#else
static inline int dfu_write_by_name(char *dfu_entity_name, void *addr,
unsigned int len, char *interface,
@@ -520,6 +536,14 @@
puts("write support for DFU not available!\n");
return -ENOSYS;
}
+
+static inline int dfu_write_by_alt(int dfu_alt_num, void *addr,
+ unsigned int len, char *interface,
+ char *devstring)
+{
+ puts("write support for DFU not available!\n");
+ return -ENOSYS;
+}
#endif
int dfu_add(struct usb_configuration *c);