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/*
* Copyright 2011, Marvell Semiconductor Inc.
* Lei Wen <leiwen@marvell.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __MV_UDC_H__
#define __MV_UDC_H__
#include <asm/byteorder.h>
#include <asm/errno.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
/* Endpoint 0 states */
#define EP0_IDLE 0
#define EP0_IN_DATA 1
#define EP0_OUT_DATA 2
#define EP0_XFER_COMPLETE 3
/* Endpoint parameters */
#define MAX_ENDPOINTS 4
#define EP_MAX_PACKET_SIZE 0x200
#define EP0_MAX_PACKET_SIZE 64
#define UDC_OUT_ENDPOINT 0x02
#define UDC_OUT_PACKET_SIZE EP_MAX_PACKET_SIZE
#define UDC_IN_ENDPOINT 0x01
#define UDC_IN_PACKET_SIZE EP_MAX_PACKET_SIZE
#define UDC_INT_ENDPOINT 0x05
#define UDC_INT_PACKET_SIZE EP_MAX_PACKET_SIZE
#define UDC_BULK_PACKET_SIZE EP_MAX_PACKET_SIZE
#define NUM_ENDPOINTS 6
#define REQ_COUNT 12
struct mv_ep {
struct usb_ep ep;
struct usb_request req;
struct list_head queue;
const struct usb_endpoint_descriptor *desc;
};
struct mv_udc {
u32 pad0[80];
#define MICRO_8FRAME 0x8
#define USBCMD_ITC(x) (((x > 0xff) ? 0xff : x) << 16)
#define USBCMD_FS2 (1 << 15)
#define USBCMD_RST (1 << 1)
#define USBCMD_RUN (1)
u32 usbcmd; /* 0x140 */
#define STS_SLI (1 << 8)
#define STS_URI (1 << 6)
#define STS_PCI (1 << 2)
#define STS_UEI (1 << 1)
#define STS_UI (1 << 0)
u32 usbsts; /* 0x144 */
u32 pad1[3];
u32 devaddr; /* 0x154 */
u32 epinitaddr; /* 0x158 */
u32 pad2[10];
#define PTS_ENABLE 2
#define PTS(x) ((x & 0x3) << 30)
#define PFSC (1 << 24)
u32 portsc; /* 0x184 */
u32 pad3[8];
#define USBMODE_DEVICE 2
u32 usbmode; /* 0x1a8 */
u32 epstat; /* 0x1ac */
#define EPT_TX(x) (1 << ((x & 0xffff) + 16))
#define EPT_RX(x) (1 << (x & 0xffff))
u32 epprime; /* 0x1b0 */
u32 epflush; /* 0x1b4 */
u32 pad4;
u32 epcomp; /* 0x1bc */
#define CTRL_TXE (1 << 23)
#define CTRL_TXR (1 << 22)
#define CTRL_RXE (1 << 7)
#define CTRL_RXR (1 << 6)
#define CTRL_TXT_BULK (2 << 18)
#define CTRL_RXT_BULK (2 << 2)
u32 epctrl[16]; /* 0x1c0 */
};
struct mv_drv {
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
struct mv_udc *udc;
};
struct ept_queue_head {
unsigned config;
unsigned current; /* read-only */
unsigned next;
unsigned info;
unsigned page0;
unsigned page1;
unsigned page2;
unsigned page3;
unsigned page4;
unsigned reserved_0;
unsigned char setup_data[8];
unsigned reserved_1;
unsigned reserved_2;
unsigned reserved_3;
unsigned reserved_4;
};
#define CONFIG_MAX_PKT(n) ((n) << 16)
#define CONFIG_ZLT (1 << 29) /* stop on zero-len xfer */
#define CONFIG_IOS (1 << 15) /* IRQ on setup */
struct ept_queue_item {
unsigned next;
unsigned info;
unsigned page0;
unsigned page1;
unsigned page2;
unsigned page3;
unsigned page4;
unsigned reserved;
};
#define TERMINATE 1
#define INFO_BYTES(n) ((n) << 16)
#define INFO_IOC (1 << 15)
#define INFO_ACTIVE (1 << 7)
#define INFO_HALTED (1 << 6)
#define INFO_BUFFER_ERROR (1 << 5)
#define INFO_TX_ERROR (1 << 3)
extern int usb_lowlevel_init(int index, void **controller);
#endif /* __MV_UDC_H__ */
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