diff options
| author |   Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2011-06-06 14:18:50 +0900 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-07 09:10:09 -0700 |
| commit | d77e3f4e1743834c7b4acb54004ffd7f57c82582 (patch) | |
| tree | 5ef953674c897b32134578654bc679e41039bfa9 /drivers/usb/renesas_usbhs/pipe.h | |
| parent | usb: renesas_usbhs: add usbhsf_fifo (diff) | |
| download | wireguard-linux-d77e3f4e1743834c7b4acb54004ffd7f57c82582.tar.xz wireguard-linux-d77e3f4e1743834c7b4acb54004ffd7f57c82582.zip | |
usb: renesas_usbhs: add pipe/fifo link
renesas_usbhs has CFIFO which is for PIO transfer,
and D0FIFO/D1FIFO which are for DMA transfer.
The pipe selects one of these fifo when it send/recv data.
But fifo must not be selected to different pipe in same time.
This patch add pipe/fifo link for each other,
and fifo is not selected by another pipe until it is unselected.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/renesas_usbhs/pipe.h')
| -rw-r--r-- | drivers/usb/renesas_usbhs/pipe.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h index 20e3cf46f70c..484adbed6dfb 100644 --- a/drivers/usb/renesas_usbhs/pipe.h +++ b/drivers/usb/renesas_usbhs/pipe.h @@ -27,6 +27,7 @@ struct usbhs_pipe { u32 pipe_type; /* USB_ENDPOINT_XFER_xxx */ struct usbhs_priv *priv; + struct usbhs_fifo *fifo; struct list_head list; u32 flags; @@ -88,10 +89,13 @@ int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe); void usbhs_pipe_enable(struct usbhs_pipe *pipe); void usbhs_pipe_disable(struct usbhs_pipe *pipe); void usbhs_pipe_stall(struct usbhs_pipe *pipe); +void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo); #define usbhs_pipe_to_priv(p) ((p)->priv) #define usbhs_pipe_number(p) (int)((p) - (p)->priv->pipe_info.pipe) #define usbhs_pipe_is_dcp(p) ((p)->priv->pipe_info.pipe == (p)) +#define usbhs_pipe_to_fifo(p) ((p)->fifo) +#define usbhs_pipe_is_busy(p) usbhs_pipe_to_fifo(p) /* * dcp control |