Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 129 insertions, 0 deletions

diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h
new file mode 100644
index 000000000..299984563
--- /dev/null
+++ b/drivers/usb/musb/musb_host.h
@@ -0,0 +1,129 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * MUSB OTG driver host defines
+ *
+ * Copyright 2005 Mentor Graphics Corporation
+ * Copyright (C) 2005-2006 by Texas Instruments
+ * Copyright (C) 2006-2007 Nokia Corporation
+ */
+
+#ifndef _MUSB_HOST_H
+#define _MUSB_HOST_H
+
+#include <linux/scatterlist.h>
+
+/* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */
+struct musb_qh {
+	struct usb_host_endpoint *hep;		/* usbcore info */
+	struct usb_device	*dev;
+	struct musb_hw_ep	*hw_ep;		/* current binding */
+
+	struct list_head	ring;		/* of musb_qh */
+	/* struct musb_qh		*next; */	/* for periodic tree */
+	u8			mux;		/* qh multiplexed to hw_ep */
+
+	unsigned		offset;		/* in urb->transfer_buffer */
+	unsigned		segsize;	/* current xfer fragment */
+
+	u8			type_reg;	/* {rx,tx} type register */
+	u8			intv_reg;	/* {rx,tx} interval register */
+	u8			addr_reg;	/* device address register */
+	u8			h_addr_reg;	/* hub address register */
+	u8			h_port_reg;	/* hub port register */
+
+	u8			is_ready;	/* safe to modify hw_ep */
+	u8			type;		/* XFERTYPE_* */
+	u8			epnum;
+	u8			hb_mult;	/* high bandwidth pkts per uf */
+	u16			maxpacket;
+	u16			frame;		/* for periodic schedule */
+	unsigned		iso_idx;	/* in urb->iso_frame_desc[] */
+	struct sg_mapping_iter sg_miter;	/* for highmem in PIO mode */
+	bool			use_sg;		/* to track urb using sglist */
+};
+
+/* map from control or bulk queue head to the first qh on that ring */
+static inline struct musb_qh *first_qh(struct list_head *q)
+{
+	if (list_empty(q))
+		return NULL;
+	return list_entry(q->next, struct musb_qh, ring);
+}
+
+
+#if IS_ENABLED(CONFIG_USB_MUSB_HOST) || IS_ENABLED(CONFIG_USB_MUSB_DUAL_ROLE)
+extern struct musb *hcd_to_musb(struct usb_hcd *);
+extern irqreturn_t musb_h_ep0_irq(struct musb *);
+extern int musb_host_alloc(struct musb *);
+extern int musb_host_setup(struct musb *, int);
+extern void musb_host_cleanup(struct musb *);
+extern void musb_host_tx(struct musb *, u8);
+extern void musb_host_rx(struct musb *, u8);
+extern void musb_root_disconnect(struct musb *musb);
+extern void musb_host_free(struct musb *);
+extern void musb_host_cleanup(struct musb *);
+extern void musb_host_tx(struct musb *, u8);
+extern void musb_host_rx(struct musb *, u8);
+extern void musb_root_disconnect(struct musb *musb);
+extern void musb_host_resume_root_hub(struct musb *musb);
+extern void musb_host_poke_root_hub(struct musb *musb);
+extern int musb_port_suspend(struct musb *musb, bool do_suspend);
+extern void musb_port_reset(struct musb *musb, bool do_reset);
+extern void musb_host_finish_resume(struct work_struct *work);
+#else
+static inline struct musb *hcd_to_musb(struct usb_hcd *hcd)
+{
+	return NULL;
+}
+
+static inline irqreturn_t musb_h_ep0_irq(struct musb *musb)
+{
+	return 0;
+}
+
+static inline int musb_host_alloc(struct musb *musb)
+{
+	return 0;
+}
+
+static inline int musb_host_setup(struct musb *musb, int power_budget)
+{
+	return 0;
+}
+
+static inline void musb_host_cleanup(struct musb *musb)		{}
+static inline void musb_host_free(struct musb *musb)		{}
+static inline void musb_host_tx(struct musb *musb, u8 epnum)	{}
+static inline void musb_host_rx(struct musb *musb, u8 epnum)	{}
+static inline void musb_root_disconnect(struct musb *musb)	{}
+static inline void musb_host_resume_root_hub(struct musb *musb)	{}
+static inline void musb_host_poll_rh_status(struct musb *musb)	{}
+static inline void musb_host_poke_root_hub(struct musb *musb)	{}
+static inline int musb_port_suspend(struct musb *musb, bool do_suspend)
+{
+	return 0;
+}
+static inline void musb_port_reset(struct musb *musb, bool do_reset) {}
+static inline void musb_host_finish_resume(struct work_struct *work) {}
+#endif
+
+struct usb_hcd;
+
+extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf);
+extern int musb_hub_control(struct usb_hcd *hcd,
+			u16 typeReq, u16 wValue, u16 wIndex,
+			char *buf, u16 wLength);
+
+static inline struct urb *next_urb(struct musb_qh *qh)
+{
+	struct list_head	*queue;
+
+	if (!qh)
+		return NULL;
+	queue = &qh->hep->urb_list;
+	if (list_empty(queue))
+		return NULL;
+	return list_entry(queue->next, struct urb, urb_list);
+}
+
+#endif				/* _MUSB_HOST_H */