Adding upstream version 6.6.15.upstream/6.6.15

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

1 files changed, 152 insertions, 0 deletions

diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
new file mode 100644
index 0000000000..55a56cf67d
--- /dev/null
+++ b/drivers/usb/dwc3/gadget.h
@@ -0,0 +1,152 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * gadget.h - DesignWare USB3 DRD Gadget Header
+ *
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
+ *
+ * Authors: Felipe Balbi <balbi@ti.com>,
+ *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ */
+
+#ifndef __DRIVERS_USB_DWC3_GADGET_H
+#define __DRIVERS_USB_DWC3_GADGET_H
+
+#include <linux/list.h>
+#include <linux/usb/gadget.h>
+#include "io.h"
+
+struct dwc3;
+#define to_dwc3_ep(ep)		(container_of(ep, struct dwc3_ep, endpoint))
+#define gadget_to_dwc(g)	(dev_get_platdata(&g->dev))
+
+/* DEPCFG parameter 1 */
+#define DWC3_DEPCFG_INT_NUM(n)		(((n) & 0x1f) << 0)
+#define DWC3_DEPCFG_XFER_COMPLETE_EN	BIT(8)
+#define DWC3_DEPCFG_XFER_IN_PROGRESS_EN	BIT(9)
+#define DWC3_DEPCFG_XFER_NOT_READY_EN	BIT(10)
+#define DWC3_DEPCFG_FIFO_ERROR_EN	BIT(11)
+#define DWC3_DEPCFG_STREAM_EVENT_EN	BIT(13)
+#define DWC3_DEPCFG_BINTERVAL_M1(n)	(((n) & 0xff) << 16)
+#define DWC3_DEPCFG_STREAM_CAPABLE	BIT(24)
+#define DWC3_DEPCFG_EP_NUMBER(n)	(((n) & 0x1f) << 25)
+#define DWC3_DEPCFG_BULK_BASED		BIT(30)
+#define DWC3_DEPCFG_FIFO_BASED		BIT(31)
+
+/* DEPCFG parameter 0 */
+#define DWC3_DEPCFG_EP_TYPE(n)		(((n) & 0x3) << 1)
+#define DWC3_DEPCFG_MAX_PACKET_SIZE(n)	(((n) & 0x7ff) << 3)
+#define DWC3_DEPCFG_FIFO_NUMBER(n)	(((n) & 0x1f) << 17)
+#define DWC3_DEPCFG_BURST_SIZE(n)	(((n) & 0xf) << 22)
+#define DWC3_DEPCFG_DATA_SEQ_NUM(n)	((n) << 26)
+/* This applies for core versions earlier than 1.94a */
+#define DWC3_DEPCFG_IGN_SEQ_NUM		BIT(31)
+/* These apply for core versions 1.94a and later */
+#define DWC3_DEPCFG_ACTION_INIT		(0 << 30)
+#define DWC3_DEPCFG_ACTION_RESTORE	BIT(30)
+#define DWC3_DEPCFG_ACTION_MODIFY	(2 << 30)
+
+/* DEPXFERCFG parameter 0 */
+#define DWC3_DEPXFERCFG_NUM_XFER_RES(n)	((n) & 0xffff)
+
+/* U1 Device exit Latency */
+#define DWC3_DEFAULT_U1_DEV_EXIT_LAT	0x0A	/* Less then 10 microsec */
+
+/* U2 Device exit Latency */
+#define DWC3_DEFAULT_U2_DEV_EXIT_LAT	0x1FF	/* Less then 511 microsec */
+
+/* Frame/Microframe Number Mask */
+#define DWC3_FRNUMBER_MASK		0x3fff
+/* -------------------------------------------------------------------------- */
+
+#define to_dwc3_request(r)	(container_of(r, struct dwc3_request, request))
+
+/**
+ * next_request - gets the next request on the given list
+ * @list: the request list to operate on
+ *
+ * Caller should take care of locking. This function return %NULL or the first
+ * request available on @list.
+ */
+static inline struct dwc3_request *next_request(struct list_head *list)
+{
+	return list_first_entry_or_null(list, struct dwc3_request, list);
+}
+
+/**
+ * dwc3_gadget_move_started_request - move @req to the started_list
+ * @req: the request to be moved
+ *
+ * Caller should take care of locking. This function will move @req from its
+ * current list to the endpoint's started_list.
+ */
+static inline void dwc3_gadget_move_started_request(struct dwc3_request *req)
+{
+	struct dwc3_ep		*dep = req->dep;
+
+	req->status = DWC3_REQUEST_STATUS_STARTED;
+	list_move_tail(&req->list, &dep->started_list);
+}
+
+/**
+ * dwc3_gadget_move_cancelled_request - move @req to the cancelled_list
+ * @req: the request to be moved
+ * @reason: cancelled reason for the dwc3 request
+ *
+ * Caller should take care of locking. This function will move @req from its
+ * current list to the endpoint's cancelled_list.
+ */
+static inline void dwc3_gadget_move_cancelled_request(struct dwc3_request *req,
+		unsigned int reason)
+{
+	struct dwc3_ep		*dep = req->dep;
+
+	req->status = reason;
+	list_move_tail(&req->list, &dep->cancelled_list);
+}
+
+void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
+		int status);
+
+void dwc3_ep0_interrupt(struct dwc3 *dwc,
+		const struct dwc3_event_depevt *event);
+void dwc3_ep0_out_start(struct dwc3 *dwc);
+void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep);
+void dwc3_ep0_stall_and_restart(struct dwc3 *dwc);
+int __dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value);
+int dwc3_gadget_ep0_set_halt(struct usb_ep *ep, int value);
+int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
+		gfp_t gfp_flags);
+int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol);
+void dwc3_ep0_send_delayed_status(struct dwc3 *dwc);
+void dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, bool interrupt);
+
+/**
+ * dwc3_gadget_ep_get_transfer_index - Gets transfer index from HW
+ * @dep: dwc3 endpoint
+ *
+ * Caller should take care of locking. Returns the transfer resource
+ * index for a given endpoint.
+ */
+static inline void dwc3_gadget_ep_get_transfer_index(struct dwc3_ep *dep)
+{
+	u32			res_id;
+
+	res_id = dwc3_readl(dep->regs, DWC3_DEPCMD);
+	dep->resource_index = DWC3_DEPCMD_GET_RSC_IDX(res_id);
+}
+
+/**
+ * dwc3_gadget_dctl_write_safe - write to DCTL safe from link state change
+ * @dwc: pointer to our context structure
+ * @value: value to write to DCTL
+ *
+ * Use this function when doing read-modify-write to DCTL. It will not
+ * send link state change request.
+ */
+static inline void dwc3_gadget_dctl_write_safe(struct dwc3 *dwc, u32 value)
+{
+	value &= ~DWC3_DCTL_ULSTCHNGREQ_MASK;
+	dwc3_writel(dwc->regs, DWC3_DCTL, value);
+}
+
+#endif /* __DRIVERS_USB_DWC3_GADGET_H */