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Makefile  |  2008-10-09  |  8.6 KB  |  188 lines
  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.  
  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.
  18.  
  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 $(fw-shipped-all).
  21. # But be aware that the config file might not be included at all.
  22.  
  23. fw-shipped-$(CONFIG_ATARI_DSP56K) += dsp56k/bootstrap.bin
  24. fw-shipped-$(CONFIG_ATM_AMBASSADOR) += atmsar11.fw
  25. fw-shipped-$(CONFIG_COMPUTONE) += intelliport2.bin
  26. fw-shipped-$(CONFIG_DVB_TTUSB_BUDGET) += ttusb-budget/dspbootcode.bin
  27. fw-shipped-$(CONFIG_SMCTR) += tr_smctr.bin
  28. fw-shipped-$(CONFIG_SND_KORG1212) += korg/k1212.dsp
  29. fw-shipped-$(CONFIG_SND_MAESTRO3) += ess/maestro3_assp_kernel.fw \
  30.                      ess/maestro3_assp_minisrc.fw
  31. fw-shipped-$(CONFIG_SND_SB16_CSP) += sb16/mulaw_main.csp sb16/alaw_main.csp \
  32.                      sb16/ima_adpcm_init.csp \
  33.                      sb16/ima_adpcm_playback.csp \
  34.                      sb16/ima_adpcm_capture.csp
  35. fw-shipped-$(CONFIG_SND_YMFPCI) += yamaha/ds1_ctrl.fw yamaha/ds1_dsp.fw \
  36.                    yamaha/ds1e_ctrl.fw
  37. fw-shipped-$(CONFIG_USB_DABUSB) += dabusb/firmware.fw dabusb/bitstream.bin
  38. fw-shipped-$(CONFIG_USB_EMI26) += emi26/loader.fw emi26/firmware.fw \
  39.                   emi26/bitstream.fw
  40. fw-shipped-$(CONFIG_USB_EMI62) += emi62/loader.fw emi62/bitstream.fw \
  41.                   emi62/spdif.fw emi62/midi.fw
  42. fw-shipped-$(CONFIG_USB_KAWETH) += kaweth/new_code.bin kaweth/trigger_code.bin \
  43.                    kaweth/new_code_fix.bin \
  44.                    kaweth/trigger_code_fix.bin
  45. ifdef CONFIG_FIRMWARE_IN_KERNEL
  46. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_MPR) += keyspan/mpr.fw
  47. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA18X) += keyspan/usa18x.fw
  48. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA19) += keyspan/usa19.fw
  49. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA19QI) += keyspan/usa19qi.fw
  50. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA19QW) += keyspan/usa19qw.fw
  51. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA19W) += keyspan/usa19w.fw
  52. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA28) += keyspan/usa28.fw
  53. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA28XA) += keyspan/usa28xa.fw
  54. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA28XB) += keyspan/usa28xb.fw
  55. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA28X) += keyspan/usa28x.fw
  56. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA49W) += keyspan/usa49w.fw
  57. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA49WLC) += keyspan/usa49wlc.fw
  58. else
  59. fw-shipped- += keyspan/mpr.fw keyspan/usa18x.fw keyspan/usa19.fw    \
  60.     keyspan/usa19qi.fw keyspan/usa19qw.fw keyspan/usa19w.fw        \
  61.     keyspan/usa28.fw keyspan/usa28xa.fw keyspan/usa28xb.fw        \
  62.     keyspan/usa28x.fw keyspan/usa49w.fw keyspan/usa49wlc.fw
  63. endif
  64. fw-shipped-$(CONFIG_USB_SERIAL_TI) += ti_3410.fw ti_5052.fw
  65. fw-shipped-$(CONFIG_USB_SERIAL_EDGEPORT) += edgeport/boot.fw edgeport/boot2.fw \
  66.                         edgeport/down.fw edgeport/down2.fw
  67. fw-shipped-$(CONFIG_USB_SERIAL_EDGEPORT_TI) += edgeport/down3.bin
  68. fw-shipped-$(CONFIG_USB_SERIAL_WHITEHEAT) += whiteheat_loader.fw whiteheat.fw \
  69.                        # whiteheat_loader_debug.fw
  70. fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_PDA) += keyspan_pda/keyspan_pda.fw
  71. fw-shipped-$(CONFIG_USB_SERIAL_XIRCOM) += keyspan_pda/xircom_pgs.fw
  72. fw-shipped-$(CONFIG_USB_VICAM) += vicam/firmware.fw
  73. fw-shipped-$(CONFIG_VIDEO_CPIA2) += cpia2/stv0672_vp4.bin
  74.  
  75. fw-shipped-all := $(fw-shipped-y) $(fw-shipped-m) $(fw-shipped-)
  76.  
  77. # Directories which we _might_ need to create, so we have a rule for them.
  78. firmware-dirs := $(sort $(patsubst %,$(objtree)/$(obj)/%/,$(dir $(fw-external-y) $(fw-shipped-all))))
  79.  
  80. quiet_cmd_mkdir = MKDIR   $(patsubst $(objtree)/%,%,$@)
  81.       cmd_mkdir = mkdir -p $@
  82.  
  83. quiet_cmd_ihex  = IHEX    $@
  84.       cmd_ihex  = $(OBJCOPY) -Iihex -Obinary $< $@
  85.  
  86. quiet_cmd_ihex2fw  = IHEX2FW $@
  87.       cmd_ihex2fw  = $(objtree)/$(obj)/ihex2fw $< $@
  88.  
  89. quiet_cmd_h16tofw  = H16TOFW $@
  90.       cmd_h16tofw  = $(objtree)/$(obj)/ihex2fw -w $< $@
  91.  
  92. quiet_cmd_fwbin = MK_FW   $@
  93.       cmd_fwbin = FWNAME="$(patsubst firmware/%.gen.S,%,$@)";             \
  94.           FWSTR="$(subst /,_,$(subst .,_,$(subst -,_,$(patsubst         \
  95.                 firmware/%.gen.S,%,$@))))";             \
  96.           ASM_WORD=$(if $(CONFIG_64BIT),.quad,.long);             \
  97.           ASM_ALIGN=$(if $(CONFIG_64BIT),3,2);                 \
  98.           PROGBITS=$(if $(CONFIG_ARM),%,@)progbits;             \
  99.           echo "/* Generated by firmware/Makefile */"        > $@;\
  100.           echo "    .section .rodata"                >>$@;\
  101.           echo "    .p2align $${ASM_ALIGN}"            >>$@;\
  102.           echo "_fw_$${FWSTR}_bin:"                >>$@;\
  103.           echo "    .incbin \"$(2)\""                >>$@;\
  104.           echo "_fw_end:"                    >>$@;\
  105.           echo "   .section .rodata.str,\"aMS\",$${PROGBITS},1"    >>$@;\
  106.           echo "    .p2align $${ASM_ALIGN}"            >>$@;\
  107.           echo "_fw_$${FWSTR}_name:"                >>$@;\
  108.           echo "    .string \"$$FWNAME\""            >>$@;\
  109.           echo "    .section .builtin_fw,\"a\",$${PROGBITS}"    >>$@;\
  110.           echo "    .p2align $${ASM_ALIGN}"            >>$@;\
  111.           echo "    $${ASM_WORD} _fw_$${FWSTR}_name"        >>$@;\
  112.           echo "    $${ASM_WORD} _fw_$${FWSTR}_bin"        >>$@;\
  113.           echo "    $${ASM_WORD} _fw_end - _fw_$${FWSTR}_bin"    >>$@;
  114.  
  115. # One of these files will change, or come into existence, whenever
  116. # the configuration changes between 32-bit and 64-bit. The .S files
  117. # need to change when that happens.
  118. wordsize_deps := $(wildcard include/config/64bit.h include/config/32bit.h \
  119.         include/config/ppc32.h include/config/ppc64.h \
  120.         include/config/superh32.h include/config/superh64.h \
  121.         include/config/x86_32.h include/config/x86_64.h)
  122.  
  123. # Workaround for make < 3.81, where .SECONDEXPANSION doesn't work.
  124. # It'll end up depending on these targets, so make them a PHONY rule which
  125. # depends on _all_ the directories in $(firmware-dirs), and it'll work out OK.
  126. PHONY += $(objtree)/$$(%) $(objtree)/$(obj)/$$(%)
  127. $(objtree)/$$(%) $(objtree)/$(obj)/$$(%): $(firmware-dirs)
  128.     @true
  129.  
  130. # For the $$(dir %) trick, where we need % to be expanded first.
  131. .SECONDEXPANSION:
  132.  
  133. $(patsubst %,$(obj)/%.gen.S, $(fw-shipped-y)): %: $(wordsize_deps) \
  134.         | $(objtree)/$$(dir %)
  135.     $(call cmd,fwbin,$(patsubst %.gen.S,%,$@))
  136. $(patsubst %,$(obj)/%.gen.S, $(fw-external-y)): %: $(wordsize_deps) \
  137.         include/config/extra/firmware/dir.h | $(objtree)/$$(dir %)
  138.     $(call cmd,fwbin,$(fwabs)/$(patsubst $(obj)/%.gen.S,%,$@))
  139.  
  140. # The .o files depend on the binaries directly; the .S files don't.
  141. $(patsubst %,$(obj)/%.gen.o, $(fw-shipped-y)): %.gen.o: %
  142. $(patsubst %,$(obj)/%.gen.o, $(fw-external-y)): $(obj)/%.gen.o: $(fwdir)/%
  143.  
  144. # .ihex is used just as a simple way to hold binary files in a source tree
  145. # where binaries are frowned upon. They are directly converted with objcopy.
  146. $(obj)/%: $(obj)/%.ihex | $(objtree)/$(obj)/$$(dir %)
  147.     $(call cmd,ihex)
  148.  
  149. # Don't depend on ihex2fw if we're installing and it already exists.
  150. # Putting it after | in the dependencies doesn't seem sufficient when
  151. # we're installing after a cross-compile, because ihex2fw has dependencies
  152. # on stuff like /usr/lib/gcc/ppc64-redhat-linux/4.3.0/include/stddef.h and 
  153. # thus wants to be rebuilt. Which it can't be, if the prebuilt kernel tree
  154. # is exported read-only for someone to run 'make install'.
  155. ifeq ($(INSTALL):$(wildcard $(obj)/ihex2fw),install:$(obj)/ihex2fw)
  156. ihex2fw_dep :=
  157. else
  158. ihex2fw_dep := $(obj)/ihex2fw
  159. endif
  160.  
  161. # .HEX is also Intel HEX, but where the offset and length in each record
  162. # is actually meaningful, because the firmware has to be loaded in a certain
  163. # order rather than as a single binary blob. Thus, we convert them into our
  164. # more compact binary representation of ihex records (<linux/ihex.h>)
  165. $(obj)/%.fw: $(obj)/%.HEX $(ihex2fw_dep) | $(objtree)/$(obj)/$$(dir %)
  166.     $(call cmd,ihex2fw)
  167.  
  168. # .H16 is our own modified form of Intel HEX, with 16-bit length for records.
  169. $(obj)/%.fw: $(obj)/%.H16 $(ihex2fw_dep) | $(objtree)/$(obj)/$$(dir %)
  170.     $(call cmd,h16tofw)
  171.  
  172. $(firmware-dirs):
  173.     $(call cmd,mkdir)
  174.  
  175. obj-y                 += $(patsubst %,%.gen.o, $(fw-external-y))
  176. obj-$(CONFIG_FIRMWARE_IN_KERNEL) += $(patsubst %,%.gen.o, $(fw-shipped-y))
  177.  
  178. # Remove .S files and binaries created from ihex
  179. # (during 'make clean' .config isn't included so they're all in $(fw-shipped-))
  180. targets := $(fw-shipped-) $(patsubst $(obj)/%,%, \
  181.                 $(shell find $(obj) -name \*.gen.S 2>/dev/null))
  182.  
  183. # Without this, built-in.o won't be created when it's empty, and the
  184. # final vmlinux link will fail.
  185. obj-n := dummy
  186.  
  187. hostprogs-y := ihex2fw
  188.