diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2020-07-23 17:45:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-23 17:05:29 +0200 |
| commit | 6ae6470bfa330d0b8892e02888bf5dac2272c28d (patch) | |
| tree | 334242ee5eb63fe82db59b5048172c05d4441062 /drivers/usb/host/xhci-dbgcap.h | |
| parent | 4521f16139409cdf9462c7325d43454462cff6c3 (diff) | |
| download | lwn-6ae6470bfa330d0b8892e02888bf5dac2272c28d.tar.gz lwn-6ae6470bfa330d0b8892e02888bf5dac2272c28d.zip | |
xhci: dbc: Add a operations structure to access driver functions
Don't call dbctty driver functions directly from dbc core code.
Introduce a new dbc_driver structure that contains function pointers
for disconnect and configure operations.
The driver (ttydbc) must provide these opeations when creating a dbc.
Name the structure dbc_driver instead of dbc_ops as we plan to
add more driver configureable values here, such as vid and pid.
Decouples dbc and dbctty.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-26-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-dbgcap.h')
| -rw-r--r-- | drivers/usb/host/xhci-dbgcap.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-dbgcap.h b/drivers/usb/host/xhci-dbgcap.h index e4c7c9279ea8..5018b32fc742 100644 --- a/drivers/usb/host/xhci-dbgcap.h +++ b/drivers/usb/host/xhci-dbgcap.h @@ -112,6 +112,11 @@ struct dbc_port { bool registered; }; +struct dbc_driver { + int (*configure)(struct xhci_dbc *dbc); + void (*disconnect)(struct xhci_dbc *dbc); +}; + struct xhci_dbc { spinlock_t lock; /* device access */ struct device *dev; @@ -133,6 +138,7 @@ struct xhci_dbc { struct dbc_ep eps[2]; struct dbc_port port; + const struct dbc_driver *driver; }; struct dbc_request { @@ -192,8 +198,6 @@ int xhci_dbc_init(struct xhci_hcd *xhci); void xhci_dbc_exit(struct xhci_hcd *xhci); int xhci_dbc_tty_probe(struct xhci_hcd *xhci); void xhci_dbc_tty_remove(struct xhci_dbc *dbc); -int xhci_dbc_tty_register_device(struct xhci_dbc *dbc); -void xhci_dbc_tty_unregister_device(struct xhci_dbc *dbc); struct dbc_request *dbc_alloc_request(struct xhci_dbc *dbc, unsigned int direction, gfp_t flags); |