diff options
| author | Pavankumar Kondeti <pkondeti@codeaurora.org> | 2010-12-07 15:24:02 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-12-11 01:23:33 +0300 |
| commit | f01ef5748f4c4dcd2e49ccb7d75dc113219559d2 (patch) | |
| tree | f67c19262909832ad72f11f0b1eb7083bcac0578 /drivers/usb/gadget/ci13xxx_udc.h | |
| parent | 61948ee4d525174cceee2135a38a482124fcc02c (diff) | |
| download | linux-f01ef5748f4c4dcd2e49ccb7d75dc113219559d2.tar.xz | |
USB: gadget: Introduce ci13xxx_udc_driver struct
Introduces ci13xxx_udc_driver struct for bus glue drivers to hint
ci13xxx_udc core about their special requirements. The flags include
avoiding hardware register access when controller is not in peripheral
mode, enabling pull-up upon VBUS, disabling streaming mode and dependency
on transceiver driver.
Initialize gadget_ops in udc_probe so that transceiver can notify VBUS
presence even when no gadget driver is bounded.
A notify_event callback is embedded in the same struct. This patch implements
two events called CONTROLLER_RESET_EVENT and CONTROLLER_STOPPED_EVENT to
notify the bus glue driver after resetting and stopping the controller for
performing SoC specific quirks.
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/ci13xxx_udc.h')
| -rw-r--r-- | drivers/usb/gadget/ci13xxx_udc.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/usb/gadget/ci13xxx_udc.h b/drivers/usb/gadget/ci13xxx_udc.h index 4026e9cede34..4fd19313e238 100644 --- a/drivers/usb/gadget/ci13xxx_udc.h +++ b/drivers/usb/gadget/ci13xxx_udc.h @@ -97,9 +97,24 @@ struct ci13xxx_ep { struct dma_pool *td_pool; }; +struct ci13xxx; +struct ci13xxx_udc_driver { + const char *name; + unsigned long flags; +#define CI13XXX_REGS_SHARED BIT(0) +#define CI13XXX_REQUIRE_TRANSCEIVER BIT(1) +#define CI13XXX_PULLUP_ON_VBUS BIT(2) +#define CI13XXX_DISABLE_STREAMING BIT(3) + +#define CI13XXX_CONTROLLER_RESET_EVENT 0 +#define CI13XXX_CONTROLLER_STOPPED_EVENT 1 + void (*notify_event) (struct ci13xxx *udc, unsigned event); +}; + /* CI13XXX UDC descriptor & global resources */ struct ci13xxx { spinlock_t *lock; /* ctrl register bank access */ + void __iomem *regs; /* registers address space */ struct dma_pool *qh_pool; /* DMA pool for queue heads */ struct dma_pool *td_pool; /* DMA pool for transfer descs */ @@ -108,6 +123,9 @@ struct ci13xxx { struct ci13xxx_ep ci13xxx_ep[ENDPT_MAX]; /* extended endpts */ struct usb_gadget_driver *driver; /* 3rd party gadget driver */ + struct ci13xxx_udc_driver *udc_driver; /* device controller driver */ + int vbus_active; /* is VBUS active */ + struct otg_transceiver *transceiver; /* Transceiver struct */ }; /****************************************************************************** @@ -157,6 +175,7 @@ struct ci13xxx { #define USBMODE_CM_DEVICE (0x02UL << 0) #define USBMODE_CM_HOST (0x03UL << 0) #define USBMODE_SLOM BIT(3) +#define USBMODE_SDIS BIT(4) /* ENDPTCTRL */ #define ENDPTCTRL_RXS BIT(0) |