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ff3fcac949
The musb/cppi41 glue layer is capable of handling transactions that span over more than one USB packet by reloading the DMA descriptors partially. An urb is considered completed when either its transfer buffer has been filled entirely (actual_length == transfer_buffer_length) or if a packet in the stream has less bytes than the endpoint's wMaxPacketSize. Once one of the above conditions is met, musb_dma_completion() is called from cppi41_trans_done(). However, the final decision whether or not to return the urb to its owner is made by the core and its determination of the variable 'done' in musb_host_rx(). This code has currently no way of knowing what the size of the last packet was, and whether or not to give back the urb due to a short read. Fix this by introducing a new boolean flag in 'struct dma_channel', and set it from musb_cppi41.c. If set, it will make the core do what the DMA layer decided and complete the urb. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: George Cherian <george.cherian@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> |
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| .. | ||
| am35x.c | ||
| blackfin.c | ||
| blackfin.h | ||
| cppi_dma.c | ||
| cppi_dma.h | ||
| da8xx.c | ||
| davinci.c | ||
| davinci.h | ||
| jz4740.c | ||
| Kconfig | ||
| Makefile | ||
| musb_am335x.c | ||
| musb_core.c | ||
| musb_core.h | ||
| musb_cppi41.c | ||
| musb_debug.h | ||
| musb_debugfs.c | ||
| musb_dma.h | ||
| musb_dsps.c | ||
| 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 | ||
| ux500_dma.c | ||
| ux500.c | ||