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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-05 05:11:28 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-05 05:11:28 +0200
commitae9b475ebed96afe51d6bcf10dc7aee9c8d89ed7 (patch)
tree374bf5821a03d717b35f0b91dcbdeaa2428e649d /drivers/usb/gadget/function/g_zero.h
parentMerge tag 'tty-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gre... (diff)
parentUSB: devio: fix issue with log flooding (diff)
downloadlinux-ae9b475ebed96afe51d6bcf10dc7aee9c8d89ed7.tar.xz
linux-ae9b475ebed96afe51d6bcf10dc7aee9c8d89ed7.zip
Merge tag 'usb-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH: "Here is the big USB driver update for 3.17-rc1. Loads of gadget driver changes in here, including some big file movements to make things easier to manage over time. There's also the usual xhci and uas driver updates, and a handful of other changes in here. The changelog has the full details. All of these have been in linux-next for a while" * tag 'usb-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (211 commits) USB: devio: fix issue with log flooding uas: Log a warning when we cannot use uas because the hcd lacks streams uas: Only complain about missing sg if all other checks succeed xhci: Add missing checks for xhci_alloc_command failure xhci: Rename Asrock P67 pci product-id to EJ168 xhci: Blacklist using streams on the Etron EJ168 controller uas: Limit qdepth to 32 when connected over usb-2 uwb/whci: use correct structure type name in sizeof usb-core bInterval quirk USB: serial: ftdi_sio: Add support for new Xsens devices USB: serial: ftdi_sio: Annotate the current Xsens PID assignments usb: chipidea: debug: fix sparse non static symbol warnings usb: ci_hdrc_imx doc: fsl,usbphy is required usb: ci_hdrc_imx: Return -EINVAL for missing USB PHY usb: core: allow zero packet flag for interrupt urbs usb: lvstest: Fix sparse warnings generated by kbuild test bot USB: core: hcd-pci: free IRQ before disabling PCI device when shutting down phy: miphy365x: Represent each PHY channel as a DT subnode phy: miphy365x: Provide support for the MiPHY356x Generic PHY phy: miphy365x: Add Device Tree bindings for the MiPHY365x ...
Diffstat (limited to 'drivers/usb/gadget/function/g_zero.h')
-rw-r--r--drivers/usb/gadget/function/g_zero.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/g_zero.h b/drivers/usb/gadget/function/g_zero.h
new file mode 100644
index 000000000000..15f180904f8a
--- /dev/null
+++ b/drivers/usb/gadget/function/g_zero.h
@@ -0,0 +1,67 @@
+/*
+ * This header declares the utility functions used by "Gadget Zero", plus
+ * interfaces to its two single-configuration function drivers.
+ */
+
+#ifndef __G_ZERO_H
+#define __G_ZERO_H
+
+#define GZERO_BULK_BUFLEN 4096
+#define GZERO_QLEN 32
+#define GZERO_ISOC_INTERVAL 4
+#define GZERO_ISOC_MAXPACKET 1024
+
+struct usb_zero_options {
+ unsigned pattern;
+ unsigned isoc_interval;
+ unsigned isoc_maxpacket;
+ unsigned isoc_mult;
+ unsigned isoc_maxburst;
+ unsigned bulk_buflen;
+ unsigned qlen;
+};
+
+struct f_ss_opts {
+ struct usb_function_instance func_inst;
+ unsigned pattern;
+ unsigned isoc_interval;
+ unsigned isoc_maxpacket;
+ unsigned isoc_mult;
+ unsigned isoc_maxburst;
+ unsigned bulk_buflen;
+
+ /*
+ * Read/write access to configfs attributes is handled by configfs.
+ *
+ * This is to protect the data from concurrent access by read/write
+ * and create symlink/remove symlink.
+ */
+ struct mutex lock;
+ int refcnt;
+};
+
+struct f_lb_opts {
+ struct usb_function_instance func_inst;
+ unsigned bulk_buflen;
+ unsigned qlen;
+
+ /*
+ * Read/write access to configfs attributes is handled by configfs.
+ *
+ * This is to protect the data from concurrent access by read/write
+ * and create symlink/remove symlink.
+ */
+ struct mutex lock;
+ int refcnt;
+};
+
+void lb_modexit(void);
+int lb_modinit(void);
+
+/* common utilities */
+void free_ep_req(struct usb_ep *ep, struct usb_request *req);
+void disable_endpoints(struct usb_composite_dev *cdev,
+ struct usb_ep *in, struct usb_ep *out,
+ struct usb_ep *iso_in, struct usb_ep *iso_out);
+
+#endif /* __G_ZERO_H */