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Commit | Line | Data |
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4d2acfbf DW |
1 | # |
2 | # kbuild file for firmware/ | |
3 | # | |
4 | ||
5 | # Create $(fwabs) from $(CONFIG_EXTRA_FIRMWARE_DIR) -- if it doesn't have a | |
6 | # leading /, it's relative to $(srctree). | |
7 | fwdir := $(subst ",,$(CONFIG_EXTRA_FIRMWARE_DIR)) | |
8 | fwabs := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir)) | |
9 | ||
10 | fw-external-y := $(subst ",,$(CONFIG_EXTRA_FIRMWARE)) | |
11 | ||
88ecf814 DW |
12 | # There are three cases to care about: |
13 | # 1. Building kernel with CONFIG_FIRMWARE_IN_KERNEL=y -- $(fw-shipped-y) should | |
14 | # include the firmware files to include, according to .config | |
15 | # 2. 'make modules_install', which will install firmware for modules, and | |
16 | # _also_ for the in-kernel drivers when CONFIG_FIRMWARE_IN_KERNEL=n | |
17 | # 3. 'make firmware_install', which installs all firmware, unconditionally. | |
d172e7f5 | 18 | |
88ecf814 DW |
19 | # For the former two cases we want $(fw-shipped-y) and $(fw-shipped-m) to be |
20 | # accurate. In the latter case it doesn't matter -- it'll use $(fw-shipped-all). | |
21 | # But be aware that the config file might not be included at all. | |
22 | ||
0f805b86 | 23 | fw-shipped-$(CONFIG_SMCTR) += tr_smctr.bin |
76770664 | 24 | fw-shipped-$(CONFIG_SND_KORG1212) += korg/k1212.dsp |
a292f404 DW |
25 | fw-shipped-$(CONFIG_SND_MAESTRO3) += ess/maestro3_assp_kernel.fw \ |
26 | ess/maestro3_assp_minisrc.fw | |
18ee6dfa DW |
27 | fw-shipped-$(CONFIG_SND_YMFPCI) += yamaha/ds1_ctrl.fw yamaha/ds1_dsp.fw \ |
28 | yamaha/ds1e_ctrl.fw | |
79682499 DW |
29 | fw-shipped-$(CONFIG_USB_KAWETH) += kaweth/new_code.bin kaweth/trigger_code.bin \ |
30 | kaweth/new_code_fix.bin \ | |
31 | kaweth/trigger_code_fix.bin | |
88ecf814 DW |
32 | |
33 | fw-shipped-all := $(fw-shipped-y) $(fw-shipped-m) $(fw-shipped-) | |
34 | ||
35 | # Directories which we _might_ need to create, so we have a rule for them. | |
36 | firmware-dirs := $(sort $(patsubst %,$(objtree)/$(obj)/%/,$(dir $(fw-external-y) $(fw-shipped-all)))) | |
4d2acfbf DW |
37 | |
38 | quiet_cmd_mkdir = MKDIR $(patsubst $(objtree)/%,%,$@) | |
39 | cmd_mkdir = mkdir -p $@ | |
40 | ||
41 | quiet_cmd_ihex = IHEX $@ | |
42 | cmd_ihex = $(OBJCOPY) -Iihex -Obinary $< $@ | |
43 | ||
8bd6b222 DW |
44 | quiet_cmd_ihex2fw = IHEX2FW $@ |
45 | cmd_ihex2fw = $(objtree)/$(obj)/ihex2fw $< $@ | |
46 | ||
59890f74 DW |
47 | quiet_cmd_h16tofw = H16TOFW $@ |
48 | cmd_h16tofw = $(objtree)/$(obj)/ihex2fw -w $< $@ | |
49 | ||
4d2acfbf DW |
50 | quiet_cmd_fwbin = MK_FW $@ |
51 | cmd_fwbin = FWNAME="$(patsubst firmware/%.gen.S,%,$@)"; \ | |
52 | FWSTR="$(subst /,_,$(subst .,_,$(subst -,_,$(patsubst \ | |
53 | firmware/%.gen.S,%,$@))))"; \ | |
54 | ASM_WORD=$(if $(CONFIG_64BIT),.quad,.long); \ | |
55 | ASM_ALIGN=$(if $(CONFIG_64BIT),3,2); \ | |
56 | PROGBITS=$(if $(CONFIG_ARM),%,@)progbits; \ | |
57 | echo "/* Generated by firmware/Makefile */" > $@;\ | |
58 | echo " .section .rodata" >>$@;\ | |
59 | echo " .p2align $${ASM_ALIGN}" >>$@;\ | |
60 | echo "_fw_$${FWSTR}_bin:" >>$@;\ | |
61 | echo " .incbin \"$(2)\"" >>$@;\ | |
62 | echo "_fw_end:" >>$@;\ | |
63 | echo " .section .rodata.str,\"aMS\",$${PROGBITS},1" >>$@;\ | |
64 | echo " .p2align $${ASM_ALIGN}" >>$@;\ | |
65 | echo "_fw_$${FWSTR}_name:" >>$@;\ | |
66 | echo " .string \"$$FWNAME\"" >>$@;\ | |
67 | echo " .section .builtin_fw,\"a\",$${PROGBITS}" >>$@;\ | |
68 | echo " .p2align $${ASM_ALIGN}" >>$@;\ | |
69 | echo " $${ASM_WORD} _fw_$${FWSTR}_name" >>$@;\ | |
70 | echo " $${ASM_WORD} _fw_$${FWSTR}_bin" >>$@;\ | |
71 | echo " $${ASM_WORD} _fw_end - _fw_$${FWSTR}_bin" >>$@; | |
72 | ||
73 | # One of these files will change, or come into existence, whenever | |
74 | # the configuration changes between 32-bit and 64-bit. The .S files | |
75 | # need to change when that happens. | |
76 | wordsize_deps := $(wildcard include/config/64bit.h include/config/32bit.h \ | |
77 | include/config/ppc32.h include/config/ppc64.h \ | |
78 | include/config/superh32.h include/config/superh64.h \ | |
79 | include/config/x86_32.h include/config/x86_64.h) | |
80 | ||
81 | # Workaround for make < 3.81, where .SECONDEXPANSION doesn't work. | |
82 | # It'll end up depending on these targets, so make them a PHONY rule which | |
83 | # depends on _all_ the directories in $(firmware-dirs), and it'll work out OK. | |
84 | PHONY += $(objtree)/$$(%) $(objtree)/$(obj)/$$(%) | |
85 | $(objtree)/$$(%) $(objtree)/$(obj)/$$(%): $(firmware-dirs) | |
86 | @true | |
87 | ||
88 | # For the $$(dir %) trick, where we need % to be expanded first. | |
89 | .SECONDEXPANSION: | |
90 | ||
91 | $(patsubst %,$(obj)/%.gen.S, $(fw-shipped-y)): %: $(wordsize_deps) \ | |
92 | | $(objtree)/$$(dir %) | |
93 | $(call cmd,fwbin,$(patsubst %.gen.S,%,$@)) | |
94 | $(patsubst %,$(obj)/%.gen.S, $(fw-external-y)): %: $(wordsize_deps) \ | |
95 | include/config/builtin/firmware/dir.h | $(objtree)/$$(dir %) | |
96 | $(call cmd,fwbin,$(fwabs)/$(patsubst $(obj)/%.gen.S,%,$@)) | |
97 | ||
98 | # The .o files depend on the binaries directly; the .S files don't. | |
99 | $(patsubst %,$(obj)/%.gen.o, $(fw-shipped-y)): %.gen.o: % | |
100 | $(patsubst %,$(obj)/%.gen.o, $(fw-external-y)): $(obj)/%.gen.o: $(fwdir)/% | |
101 | ||
8bd6b222 DW |
102 | # .ihex is used just as a simple way to hold binary files in a source tree |
103 | # where binaries are frowned upon. They are directly converted with objcopy. | |
4d2acfbf DW |
104 | $(obj)/%: $(obj)/%.ihex | $(objtree)/$(obj)/$$(dir %) |
105 | $(call cmd,ihex) | |
106 | ||
8bd6b222 DW |
107 | # .HEX is also Intel HEX, but where the offset and length in each record |
108 | # is actually meaningful, because the firmware has to be loaded in a certain | |
109 | # order rather than as a single binary blob. Thus, we convert them into our | |
110 | # more compact binary representation of ihex records (<linux/ihex.h>) | |
111 | $(obj)/%.fw: $(obj)/%.HEX $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %) | |
112 | $(call cmd,ihex2fw) | |
113 | ||
59890f74 DW |
114 | # .H16 is our own modified form of Intel HEX, with 16-bit length for records. |
115 | $(obj)/%.fw: $(obj)/%.H16 $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %) | |
116 | $(call cmd,h16tofw) | |
117 | ||
4d2acfbf DW |
118 | $(firmware-dirs): |
119 | $(call cmd,mkdir) | |
120 | ||
88ecf814 DW |
121 | obj-y += $(patsubst %,%.gen.o, $(fw-external-y)) |
122 | obj-$(CONFIG_FIRMWARE_IN_KERNEL) += $(patsubst %,%.gen.o, $(fw-shipped-y)) | |
4d2acfbf DW |
123 | |
124 | # Remove .S files and binaries created from ihex | |
125 | # (during 'make clean' .config isn't included so they're all in $(fw-shipped-)) | |
126 | targets := $(fw-shipped-) $(patsubst $(obj)/%,%, \ | |
127 | $(shell find $(obj) -name \*.gen.S 2>/dev/null)) | |
128 | ||
129 | # Without this, built-in.o won't be created when it's empty, and the | |
130 | # final vmlinux link will fail. | |
131 | obj-n := dummy | |
8bd6b222 DW |
132 | |
133 | hostprogs-y := ihex2fw |