The sis7019 driver uses __ffs(), which is available in 2.6 kernels, but not in most earlier ones. This patches the driver to use a local version assembly version, as the hardware is SiS 55x only (i486/Pentium-ish).
Signed-off-by: David Dillow dave@thedillows.org --- This is against the alsa-driver hg repo. I've not build tested this version, as the build system currently hates me. However, this is 95% identical to what I was using against 1.0.13. Only the location of the __ffs -> sis_ffs change is different.
pci/sis7019.patch | 32 ++++++++++++++++++++++++++++++++ pci/Makefile | 3 ++- 2 files changed, 34 insertions(+), 1 deletion(-)
diff -r ab42d23439ef pci/Makefile --- a/pci/Makefile Tue Nov 27 16:05:25 2007 +0100 +++ b/pci/Makefile Wed Nov 28 01:39:04 2007 -0500 @@ -10,7 +10,7 @@ include $(SND_TOPDIR)/Makefile.conf #
clean-files := ad1889.c atiixp.c atiixp_modem.c bt87x.c cmipci.c ens1370.c \ - fm801.c intel8x0.c maestro3.c via82xx.c via82xx_modem.c + fm801.c intel8x0.c maestro3.c sis7019.c via82xx.c via82xx_modem.c
obj-$(CONFIG_SND) += pdplus/ asihpi/ oxygen/
@@ -31,5 +31,6 @@ fm801.c: fm801.patch $(SND_TOPDIR)/alsa- fm801.c: fm801.patch $(SND_TOPDIR)/alsa-kernel/pci/fm801.c intel8x0.c: intel8x0.patch $(SND_TOPDIR)/alsa-kernel/pci/intel8x0.c maestro3.c: maestro3.patch $(SND_TOPDIR)/alsa-kernel/pci/maestro3.c +sis7019.c: sis7019.patch $(SND_TOPDIR)/alsa-kernel/pci/sis7019.c via82xx.c: via82xx.patch $(SND_TOPDIR)/alsa-kernel/pci/via82xx.c via82xx_modem.c: via82xx_modem.patch $(SND_TOPDIR)/alsa-kernel/pci/via82xx_modem.c diff -r ab42d23439ef pci/sis7019.patch --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/pci/sis7019.patch Wed Nov 28 01:39:04 2007 -0500 @@ -0,0 +1,32 @@ +--- ../alsa-kernel/pci/sis7019.c 2007-11-28 01:02:26.000000000 -0500 ++++ sis7019.c 2007-11-28 01:36:27.000000000 -0500 +@@ -33,6 +33,14 @@ + #include <sound/initval.h> + #include "sis7019.h" + ++static inline unsigned long sis_ffs(unsigned long word) ++{ ++ __asm__("bsfl %1,%0" ++ :"=r" (word) ++ :"rm" (word)); ++ return word; ++} ++ + MODULE_AUTHOR("David Dillow dave@thedillows.org"); + MODULE_DESCRIPTION("SiS 7019"); + MODULE_LICENSE("GPL"); +@@ -289,7 +297,7 @@ + int bit; + + while (status) { +- bit = __ffs(status); ++ bit = sis_ffs(status); + status >>= bit + 1; + voice += bit; + sis_update_voice(voice); +@@ -1464,3 +1472,5 @@ + + module_init(sis7019_init); + module_exit(sis7019_exit); ++ ++EXPORT_NO_SYMBOLS