1 files changed, 115 insertions, 0 deletions
diff --git a/include/linux/firmware.h b/include/linux/firmware.h
new file mode 100644
index 000000000000..8ddd41a5ff2c
--- /dev/null
+++ b/include/linux/firmware.h
@@ -0,0 +1,115 @@
+#ifndef _LINUX_FIRMWARE_H
+#define _LINUX_FIRMWARE_H
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+#include <linux/gfp.h>
+
+#define FW_ACTION_NOHOTPLUG 0
+#define FW_ACTION_HOTPLUG 1
+
+struct firmware {
+	size_t size;
+	const u8 *data;
+	struct page **pages;
+
+	/* firmware loader private fields */
+	void *priv;
+};
+
+struct module;
+struct device;
+
+struct builtin_fw {
+	char *name;
+	void *data;
+	unsigned long size;
+};
+
+/* We have to play tricks here much like stringify() to get the
+   __COUNTER__ macro to be expanded as we want it */
+#define __fw_concat1(x, y) x##y
+#define __fw_concat(x, y) __fw_concat1(x, y)
+
+#define DECLARE_BUILTIN_FIRMWARE(name, blob)				     \
+	DECLARE_BUILTIN_FIRMWARE_SIZE(name, &(blob), sizeof(blob))
+
+#define DECLARE_BUILTIN_FIRMWARE_SIZE(name, blob, size)			     \
+	static const struct builtin_fw __fw_concat(__builtin_fw,__COUNTER__) \
+	__used __section(.builtin_fw) = { name, blob, size }
+
+#if defined(CONFIG_FW_LOADER) || (defined(CONFIG_FW_LOADER_MODULE) && defined(MODULE))
+int request_firmware(const struct firmware **fw, const char *name,
+		     struct device *device);
+int request_firmware_nowait(
+	struct module *module, bool uevent,
+	const char *name, struct device *device, gfp_t gfp, void *context,
+	void (*cont)(const struct firmware *fw, void *context));
+int request_firmware_direct(const struct firmware **fw, const char *name,
+			    struct device *device);
+
+int request_firmware_into_buf(const char *name, struct device *device,
+			    phys_addr_t dest_addr, size_t dest_size,
+			    void * (*map_fw_mem)(phys_addr_t phys,
+						 size_t size, void *data),
+			    void (*unmap_fw_mem)(void *virt, size_t size,
+						 void *data),
+			    void *data);
+int request_firmware_nowait_into_buf(
+	struct module *module, bool uevent,
+	const char *name, struct device *device, gfp_t gfp, void *context,
+	void (*cont)(const struct firmware *fw, void *context),
+	phys_addr_t dest_addr, size_t dest_size,
+	void * (*map_fw_mem)(phys_addr_t phys, size_t size, void *data),
+	void (*unmap_fw_mem)(void *virt, size_t size, void *data), void *data);
+void release_firmware(const struct firmware *fw);
+#else
+static inline int request_firmware(const struct firmware **fw,
+				   const char *name,
+				   struct device *device)
+{
+	return -EINVAL;
+}
+static inline int request_firmware_into_buf(const char *name,
+					  struct device *device,
+					  phys_addr_t dest_addr,
+					  size_t dest_size,
+					  void * (*map_fw_mem)(phys_addr_t phys,
+						       size_t size, void *data),
+					  void (*unmap_fw_mem)(void *virt,
+							       size_t size,
+							       void *data),
+					  void *data)
+{
+	return -EINVAL;
+}
+static inline int request_firmware_nowait(
+	struct module *module, bool uevent,
+	const char *name, struct device *device, gfp_t gfp, void *context,
+	void (*cont)(const struct firmware *fw, void *context))
+{
+	return -EINVAL;
+}
+static inline int request_firmware_nowait_into_buf(
+	struct module *module, bool uevent,
+	const char *name, struct device *device, gfp_t gfp, void *context,
+	void (*cont)(const struct firmware *fw, void *context),
+	phys_addr_t dest_addr, size_t dest_size,
+	void * (*map_fw_mem)(phys_addr_t phys, size_t size, void *data),
+	void (*unmap_fw_mem)(void *virt, size_t size, void *data), void *data)
+{
+	return -EINVAL;
+}
+static inline void release_firmware(const struct firmware *fw)
+{
+}
+
+static inline int request_firmware_direct(const struct firmware **fw,
+					  const char *name,
+					  struct device *device)
+{
+	return -EINVAL;
+}
+
+#endif
+#endif