Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / usb / isp1760 / isp1760-udc.h

diff --git a/kernel/drivers/usb/isp1760/isp1760-udc.h b/kernel/drivers/usb/isp1760/isp1760-udc.h
new file mode 100644 (file)
index 0000000..26899ed
--- /dev/null
+++ b/kernel/drivers/usb/isp1760/isp1760-udc.h
@@ -0,0 +1,106 @@
+/*
+ * Driver for the NXP ISP1761 device controller
+ *
+ * Copyright 2014 Ideas on Board Oy
+ *
+ * Contacts:
+ *     Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef _ISP1760_UDC_H_
+#define _ISP1760_UDC_H_
+
+#include <linux/ioport.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/usb/gadget.h>
+
+struct isp1760_device;
+struct isp1760_udc;
+
+enum isp1760_ctrl_state {
+       ISP1760_CTRL_SETUP,             /* Waiting for a SETUP transaction */
+       ISP1760_CTRL_DATA_IN,           /* Setup received, data IN stage */
+       ISP1760_CTRL_DATA_OUT,          /* Setup received, data OUT stage */
+       ISP1760_CTRL_STATUS,            /* 0-length request in status stage */
+};
+
+struct isp1760_ep {
+       struct isp1760_udc *udc;
+       struct usb_ep ep;
+
+       struct list_head queue;
+
+       unsigned int addr;
+       unsigned int maxpacket;
+       char name[7];
+
+       const struct usb_endpoint_descriptor *desc;
+
+       bool rx_pending;
+       bool halted;
+       bool wedged;
+};
+
+/**
+ * struct isp1760_udc - UDC state information
+ * irq: IRQ number
+ * irqname: IRQ name (as passed to request_irq)
+ * regs: Base address of the UDC registers
+ * driver: Gadget driver
+ * gadget: Gadget device
+ * lock: Protects driver, vbus_timer, ep, ep0_*, DC_EPINDEX register
+ * ep: Array of endpoints
+ * ep0_state: Control request state for endpoint 0
+ * ep0_dir: Direction of the current control request
+ * ep0_length: Length of the current control request
+ * connected: Tracks gadget driver bus connection state
+ */
+struct isp1760_udc {
+#ifdef CONFIG_USB_ISP1761_UDC
+       struct isp1760_device *isp;
+
+       int irq;
+       char *irqname;
+       void __iomem *regs;
+
+       struct usb_gadget_driver *driver;
+       struct usb_gadget gadget;
+
+       spinlock_t lock;
+       struct timer_list vbus_timer;
+
+       struct isp1760_ep ep[15];
+
+       enum isp1760_ctrl_state ep0_state;
+       u8 ep0_dir;
+       u16 ep0_length;
+
+       bool connected;
+
+       unsigned int devstatus;
+#endif
+};
+
+#ifdef CONFIG_USB_ISP1761_UDC
+int isp1760_udc_register(struct isp1760_device *isp, int irq,
+                        unsigned long irqflags);
+void isp1760_udc_unregister(struct isp1760_device *isp);
+#else
+static inline int isp1760_udc_register(struct isp1760_device *isp, int irq,
+                                      unsigned long irqflags)
+{
+       return 0;
+}
+
+static inline void isp1760_udc_unregister(struct isp1760_device *isp)
+{
+}
+#endif
+
+#endif