forked from Minki/linux
6b6e97107f
Multi-frame isochronous TX URBs transfers in DMA mode never complete with CPPI DMA because musb_host_tx() doesn't restart DMA on the second frame, only emitting a debug message. With Inventra DMA they complete, but in PIO mode. To fix: - Factor out programming of the DMA transfer from musb_ep_program() into musb_tx_dma_program(); - Reorder the code at the end of musb_host_tx() to facilitate the fallback to PIO iff DMA fails; - Handle the buffer offset consistently for both PIO and DMA modes; - Add an argument to musb_ep_program() for the same reason (it only worked correctly with non-zero offset of the first frame in PIO mode); - Set the completed isochronous frame descriptor's 'actual_length' and 'status' fields correctly in DMA mode. Also, since CPPI reportedly doesn't like sending isochronous packets in the RNDIS mode, change the criterion for this mode to be used only for multi-packet transfers. (There's no need for that mode in the single-packet case anyway.) [ dbrownell@users.sourceforge.net: split comment paragraph into bullet list, shrink patch delta, style tweaks ] Signed-off-by: Pavel Kiryukhin <pkiryukhin@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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| .. | ||
| blackfin.c | ||
| blackfin.h | ||
| cppi_dma.c | ||
| cppi_dma.h | ||
| davinci.c | ||
| davinci.h | ||
| Kconfig | ||
| Makefile | ||
| musb_core.c | ||
| musb_core.h | ||
| musb_debug.h | ||
| musb_dma.h | ||
| musb_gadget_ep0.c | ||
| musb_gadget.c | ||
| musb_gadget.h | ||
| musb_host.c | ||
| musb_host.h | ||
| musb_io.h | ||
| musb_regs.h | ||
| musb_virthub.c | ||
| musbhsdma.c | ||
| musbhsdma.h | ||
| omap2430.c | ||
| omap2430.h | ||
| tusb6010_omap.c | ||
| tusb6010.c | ||
| tusb6010.h | ||