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authorDavid Barksdale <amatus@amatus.name>2014-08-13 16:14:13 -0500
committerDavid Barksdale <amatus@amatus.name>2014-08-13 16:14:13 -0500
commitace6c6d243016e272050787c14e27a83ecd94a25 (patch)
treec837edb1ca98b2552fbc7edba47aeb63f98ca1f0 /drivers/usb/gadget/dwc_otg/dwc_otg_pcd.h
parent1b6e1688bd215cd7c9cb75650fa815a1ec6567e1 (diff)
Diffstat (limited to 'drivers/usb/gadget/dwc_otg/dwc_otg_pcd.h')
-rw-r--r--drivers/usb/gadget/dwc_otg/dwc_otg_pcd.h209
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diff --git a/drivers/usb/gadget/dwc_otg/dwc_otg_pcd.h b/drivers/usb/gadget/dwc_otg/dwc_otg_pcd.h
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+++ b/drivers/usb/gadget/dwc_otg/dwc_otg_pcd.h
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+/* ==========================================================================
+ * $File: //dwh/usb_iip/dev/software/otg_ipmate/linux/drivers/dwc_otg_pcd.h $
+ * $Revision: #6 $
+ * $Date: 2007/02/07 $
+ * $Change: 791271 $
+ *
+ * Synopsys HS OTG Linux Software Driver and documentation (hereinafter,
+ * "Software") is an Unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. You are permitted to use and
+ * redistribute this Software in source and binary forms, with or without
+ * modification, provided that redistributions of source code must retain this
+ * notice. You may not view, use, disclose, copy or distribute this file or
+ * any information contained herein except pursuant to this license grant from
+ * Synopsys. If you do not agree with this notice, including the disclaimer
+ * below, then you are not authorized to use the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ========================================================================== */
+#ifndef CONFIG_DWC_HOST_ONLY
+#if !defined(__DWC_PCD_H__)
+#define __DWC_PCD_H__
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+
+struct lm_device;
+struct dwc_otg_device;
+
+#include "dwc_otg_cil.h"
+
+/**
+ * @file
+ *
+ * This file contains the structures, constants, and interfaces for
+ * the Perpherial Contoller Driver (PCD).
+ *
+ * The Peripheral Controller Driver (PCD) for Linux will implement the
+ * Gadget API, so that the existing Gadget drivers can be used. For
+ * the Mass Storage Function driver the File-backed USB Storage Gadget
+ * (FBS) driver will be used. The FBS driver supports the
+ * Control-Bulk (CB), Control-Bulk-Interrupt (CBI), and Bulk-Only
+ * transports.
+ *
+ */
+
+/** Invalid DMA Address */
+#define DMA_ADDR_INVALID (~(dma_addr_t)0)
+/** Maxpacket size for EP0 */
+#define MAX_EP0_SIZE 64
+/** Maxpacket size for any EP */
+#define MAX_PACKET_SIZE 1024
+
+/**
+ * Get the pointer to the core_if from the pcd pointer.
+ */
+#define GET_CORE_IF( _pcd ) (_pcd->otg_dev->core_if)
+
+/**
+ * States of EP0.
+ */
+typedef enum ep0_state {
+ EP0_DISCONNECT = 0, /* no host */
+ EP0_IDLE = 1,
+ EP0_IN_DATA_PHASE = 2,
+ EP0_OUT_DATA_PHASE = 3,
+ EP0_STATUS = 4,
+ EP0_STALL = 5,
+} ep0state_e;
+
+/** Fordward declaration.*/
+struct dwc_otg_pcd;
+
+/** PCD EP structure.
+ * This structure describes an EP, there is an array of EPs in the PCD
+ * structure.
+ */
+typedef struct dwc_otg_pcd_ep {
+ /** USB EP data */
+ struct usb_ep ep;
+ /** USB EP Descriptor */
+ const struct usb_endpoint_descriptor *desc;
+
+ /** queue of dwc_otg_pcd_requests. */
+ struct list_head queue;
+ unsigned stopped : 1;
+ unsigned disabling : 1;
+ unsigned dma : 1;
+ unsigned queue_sof : 1;
+
+ /** DWC_otg ep data. */
+ dwc_ep_t dwc_ep;
+
+ /** Pointer to PCD */
+ struct dwc_otg_pcd *pcd;
+}dwc_otg_pcd_ep_t;
+
+
+
+/** DWC_otg PCD Structure.
+ * This structure encapsulates the data for the dwc_otg PCD.
+ */
+typedef struct dwc_otg_pcd {
+ /** USB gadget */
+ struct usb_gadget gadget;
+ /** USB gadget driver pointer*/
+ struct usb_gadget_driver *driver;
+ /** The DWC otg device pointer. */
+ struct dwc_otg_device *otg_dev;
+
+ /** State of EP0 */
+ ep0state_e ep0state;
+ /** EP0 Request is pending */
+ unsigned ep0_pending : 1;
+ /** Indicates when SET CONFIGURATION Request is in process */
+ unsigned request_config : 1;
+ /** The state of the Remote Wakeup Enable. */
+ unsigned remote_wakeup_enable : 1;
+ /** The state of the B-Device HNP Enable. */
+ unsigned b_hnp_enable : 1;
+ /** The state of A-Device HNP Support. */
+ unsigned a_hnp_support : 1;
+ /** The state of the A-Device Alt HNP support. */
+ unsigned a_alt_hnp_support : 1;
+ /** Count of pending Requests */
+ unsigned request_pending;
+
+ /** SETUP packet for EP0
+ * This structure is allocated as a DMA buffer on PCD initialization
+ * with enough space for up to 3 setup packets.
+ */
+ union {
+ struct usb_ctrlrequest req;
+ uint32_t d32[2];
+ } *setup_pkt;
+
+ dma_addr_t setup_pkt_dma_handle;
+
+ /** 2-byte dma buffer used to return status from GET_STATUS */
+ uint16_t *status_buf;
+ dma_addr_t status_buf_dma_handle;
+
+ /** Array of EPs. */
+ dwc_otg_pcd_ep_t ep0;
+ /** Array of IN EPs. */
+ dwc_otg_pcd_ep_t in_ep[ MAX_EPS_CHANNELS - 1];
+ /** Array of OUT EPs. */
+ dwc_otg_pcd_ep_t out_ep[ MAX_EPS_CHANNELS - 1];
+ /** number of valid EPs in the above array. */
+// unsigned num_eps : 4;
+ spinlock_t lock;
+ /** Timer for SRP. If it expires before SRP is successful
+ * clear the SRP. */
+ struct timer_list srp_timer;
+
+ /** Tasklet to defer starting of TEST mode transmissions until
+ * Status Phase has been completed.
+ */
+ struct tasklet_struct test_mode_tasklet;
+
+ /** Tasklet to delay starting of xfer in DMA mode */
+ struct tasklet_struct *start_xfer_tasklet;
+
+ /** The test mode to enter when the tasklet is executed. */
+ unsigned test_mode;
+
+} dwc_otg_pcd_t;
+
+
+/** DWC_otg request structure.
+ * This structure is a list of requests.
+ */
+typedef struct dwc_otg_pcd_request {
+ struct usb_request req; /**< USB Request. */
+ struct list_head queue; /**< queue of these requests. */
+ unsigned mapped:1;
+} dwc_otg_pcd_request_t;
+
+
+extern int __init dwc_otg_pcd_init(struct device *_dev);
+
+extern void dwc_otg_pcd_remove( struct device *_dev );
+extern int32_t dwc_otg_pcd_handle_intr( dwc_otg_pcd_t *_pcd );
+extern void dwc_otg_pcd_start_srp_timer(dwc_otg_pcd_t *_pcd );
+
+extern void dwc_otg_pcd_initiate_srp(dwc_otg_pcd_t *_pcd);
+extern void dwc_otg_pcd_remote_wakeup(dwc_otg_pcd_t *_pcd, int set);
+
+#endif
+#endif /* DWC_HOST_ONLY */