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| author |   Michael Grzeschik <m.grzeschik@pengutronix.de> | 2013-06-13 17:59:53 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-17 13:45:47 -0700 |
| commit | cc9e6c495b0a37cc4f7003e470bcbb15ea760377 (patch) | |
| tree | 620189fb514e382806ac61237b2812476c9abe07 /drivers/usb/chipidea/udc.h | |
| parent | usb: chipidea: improve kconfig (diff) | |
| download | linux-dev-cc9e6c495b0a37cc4f7003e470bcbb15ea760377.tar.xz linux-dev-cc9e6c495b0a37cc4f7003e470bcbb15ea760377.zip | |
usb: chipidea: udc: manage dynamic amount of tds with a linked list
Instead of having a limited number of usable tds in the udc we use a
linked list to support dynamic amount of needed tds for all special
gadget types. This improves throughput.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/udc.h')
| -rw-r--r-- | drivers/usb/chipidea/udc.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/usb/chipidea/udc.h b/drivers/usb/chipidea/udc.h index a75724a19e1a..0ecc0ad4f513 100644 --- a/drivers/usb/chipidea/udc.h +++ b/drivers/usb/chipidea/udc.h @@ -60,6 +60,12 @@ struct ci13xxx_qh { struct usb_ctrlrequest setup; } __attribute__ ((packed, aligned(4))); +struct td_node { + struct list_head td; + dma_addr_t dma; + struct ci13xxx_td *ptr; +}; + /** * struct ci13xxx_req - usb request representation * @req: request structure for gadget drivers @@ -72,10 +78,7 @@ struct ci13xxx_qh { struct ci13xxx_req { struct usb_request req; struct list_head queue; - struct ci13xxx_td *ptr; - dma_addr_t dma; - struct ci13xxx_td *zptr; - dma_addr_t zdma; + struct list_head tds; }; #ifdef CONFIG_USB_CHIPIDEA_UDC |