[OpenWrt-Devel] lantiq usb - isochronous transfers

[Ben Mulvihill]

Hi Tobias,

Thank you for reporting on your investigations. 
I have been comparing the AA and BB versions of ifx-hcd,
having completely failed to notice that AA actually uses
dwc-usb. Silly me!

I am intrigued though that ifx-hcd 3.2 does compile for you
with isochronous transfers enabled. I get the errors below.

Would porting dwc-usb from AA be easier than using dwc2?
Presumably it was replaced with ifx-hcd for a reason.

Ben


  mips-openwrt-linux-uclibc-gcc
-Wp,-MD,/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/.ifxhcd_intr.o.d
-nostdinc
-isystem /home/ben/openwrt/barrier_breaker/staging_dir/toolchain-mips_34kc+dsp_gcc-4.8-linaro_uClibc-0.9.33.2/lib/gcc/mips-openwrt-linux-uclibc/4.8.3/include -I/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc+dsp_uClibc-0.9.33.2/linux-lantiq_xway/linux-3.10.49/arch/mips/include -Iarch/mips/include/generated  -Iinclude -I/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc+dsp_uClibc-0.9.33.2/linux-lantiq_xway/linux-3.10.49/arch/mips/include/uapi -Iarch/mips/include/generated/uapi -I/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc+dsp_uClibc-0.9.33.2/linux-lantiq_xway/linux-3.10.49/include/uapi -Iinclude/generated/uapi -include /home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc+dsp_uClibc-0.9.33.2/linux-lantiq_xway/linux-3.10.49/include/linux/kconfig.h -D__KERNEL__ -DVMLINUX_LOAD_ADDRESS=0xffffffff80002000 -DDATAOFFSET=0 -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno
 -format-security -fno-delete-null-pointer-checks -O2 -fno-reorder-blocks -fno-tree-ch -fno-caller-saves -mno-check-zero-division -mabi=32 -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely -msoft-float -ffreestanding -march=mips32r2 -Wa,-mips32r2 -Wa,--trap -I/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc+dsp_uClibc-0.9.33.2/linux-lantiq_xway/linux-3.10.49/arch/mips/include/asm/mach-lantiq -I/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc+dsp_uClibc-0.9.33.2/linux-lantiq_xway/linux-3.10.49/arch/mips/include/asm/mach-lantiq/xway -I/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc+dsp_uClibc-0.9.33.2/linux-lantiq_xway/linux-3.10.49/arch/mips/include/asm/mach-generic -Wframe-larger-than=1024 -fno-stack-protector -Wno-unused-but-set-variable -fomit-frame-pointer -g -femit-struct-debug-baseonly -fno-var-tracking -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fconserve-stack -DCC_HAVE_ASM_GOTO -D__IS_DANUBE__ -D__EN_ISOC__ -D_
 _UNALIGNED_BUF_ADJ__ -Dlinux -D__LINUX__ -D__IS_HOST__ -D__KERNEL__ -D__DYN_SOF_INTR__ -D__UEIP__ -D__DO_OC_INT__ -D__INNAKSTOP_BULK__ -D__INTRNAKRETRY__ -D__INTRINCRETRY__  -DMODULE -mno-long-calls  -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(ifxhcd_intr)"  -D"KBUILD_MODNAME=KBUILD_STR(ltq_hcd_danube)" -c -o /home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.o /home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c: In
function 'next_isoc_sub':
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c:572:4: error: implicit declaration of function 'init_hc' [-Werror=implicit-function-declaration]
    init_hc(urbd->epqh);
    ^
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c: At
top level:
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c:4035:6: warning: conflicting types for 'init_hc' [enabled by default]
 void init_hc(ifxhcd_epqh_t *_epqh)
      ^
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c:4035:6: error: static declaration of 'init_hc' follows non-static declaration
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c:572:4: note: previous implicit declaration of 'init_hc' was here
    init_hc(urbd->epqh);
    ^
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c: In
function 'init_hc':
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c:4092:9: error: 'ifxhcd_epqh_t' has no member named 'isoc_frame_index'
    _epqh->isoc_frame_index=0;
         ^
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c:4095:7: error: '_urb' undeclared (first use in this function)
    if(_urb->transfer_flags && URB_ISO_ASAP)
       ^
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c:4095:7: note: each undeclared identifier is reported only once for each function it appears in
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c: In
function 'select_eps_sub':
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c:4299:9: warning: statement with no effect [-Wunused-value]
         urbd->phase==URBD_ACTIVE;
         ^
/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.c:4300:17: error: request for member 'phase' in something not a structure or union
         epqh->hc.phase=HC_WAITING;
                 ^
cc1: some warnings being treated as errors
make[5]: ***
[/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/ifxhcd_intr.o]
Error 1
make[4]: ***
[_module_/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube] Error 2
make[4]: Leaving directory
`/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/linux-3.10.49'
make[3]: ***
[/home/ben/openwrt/barrier_breaker/build_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/linux-lantiq_xway/ltq-hcd-danube/.built] Error 2
make[3]: Leaving directory
`/home/ben/openwrt/barrier_breaker/package/kernel/lantiq/ltq-hcd'
make[2]: *** [package/kernel/lantiq/ltq-hcd/compile] Error 2
make[2]: Leaving directory `/home/ben/openwrt/barrier_breaker'
make[1]: ***
[/home/ben/openwrt/barrier_breaker/staging_dir/target-mips_34kc
+dsp_uClibc-0.9.33.2/stamp/.package_compile] Error 2
make[1]: Leaving directory `/home/ben/openwrt/barrier_breaker'
make: *** [world] Error 2
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