1 // SPDX-License-Identifier: GPL-2.0
2 /* Builtin firmware support */
4 #include <linux/firmware.h>
5 #include "../firmware.h"
11 	char *name;  member
19 static bool fw_copy_to_prealloc_buf(struct firmware *fw,  in fw_copy_to_prealloc_buf()
24 	if (size < fw->size)  in fw_copy_to_prealloc_buf()
26 	memcpy(buf, fw->data, fw->size);  in fw_copy_to_prealloc_buf()
31  * firmware_request_builtin() - load builtin firmware
32  * @fw: pointer to firmware struct
33  * @name: name of firmware file
38  * if the firmware was built-in and if so use it right away. This can be used
41  * This looks for the firmware in the built-in kernel. Only if the kernel was
42  * built-in with the firmware you are looking for will this return successfully.
45  * the firmware is expected to be provided locally on the stack of the caller.
47 bool firmware_request_builtin(struct firmware *fw, const char *name)  in firmware_request_builtin()  argument
55 		if (strcmp(name, b_fw->name) == 0) {  in firmware_request_builtin()
56 			fw->size = b_fw->size;  in firmware_request_builtin()
57 			fw->data = b_fw->data;  in firmware_request_builtin()
67  * firmware_request_builtin_buf() - load builtin firmware into optional buffer
68  * @fw: pointer to firmware struct
69  * @name: name of firmware file
70  * @buf: If set this lets you use a pre-allocated buffer so that the built-in
71  *	firmware into is copied into. This field can be NULL. It is used by
75  *	If the built-in firmware does not fit into the pre-allocated @buf this
78  * This looks for the firmware in the built-in kernel. Only if the kernel was
79  * built-in with the firmware you are looking for will this call possibly
80  * succeed. If you passed a @buf the firmware will be copied into it *iff* the
81  * built-in firmware fits into the pre-allocated buffer size specified in
86 bool firmware_request_builtin_buf(struct firmware *fw, const char *name,  in firmware_request_builtin_buf()  argument
89 	if (!firmware_request_builtin(fw, name))  in firmware_request_builtin_buf()
95 bool firmware_is_builtin(const struct firmware *fw)  in firmware_is_builtin()
100 		if (fw->data == b_fw->data)  in firmware_is_builtin()