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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2011 Marvell International Ltd. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __MV_UDC_H
#define __MV_UDC_H
#define VUSBHS_MAX_PORTS 8
#define DQH_ALIGNMENT 2048
#define DTD_ALIGNMENT 64
#define DMA_BOUNDARY 4096
#define EP_DIR_IN 1
#define EP_DIR_OUT 0
#define DMA_ADDR_INVALID (~(dma_addr_t)0)
#define EP0_MAX_PKT_SIZE 64
/* ep0 transfer state */
#define WAIT_FOR_SETUP 0
#define DATA_STATE_XMIT 1
#define DATA_STATE_NEED_ZLP 2
#define WAIT_FOR_OUT_STATUS 3
#define DATA_STATE_RECV 4
#define CAPLENGTH_MASK (0xff)
#define DCCPARAMS_DEN_MASK (0x1f)
#define HCSPARAMS_PPC (0x10)
/* Frame Index Register Bit Masks */
#define USB_FRINDEX_MASKS 0x3fff
/* Command Register Bit Masks */
#define USBCMD_RUN_STOP (0x00000001)
#define USBCMD_CTRL_RESET (0x00000002)
#define USBCMD_SETUP_TRIPWIRE_SET (0x00002000)
#define USBCMD_SETUP_TRIPWIRE_CLEAR (~USBCMD_SETUP_TRIPWIRE_SET)
#define USBCMD_ATDTW_TRIPWIRE_SET (0x00004000)
#define USBCMD_ATDTW_TRIPWIRE_CLEAR (~USBCMD_ATDTW_TRIPWIRE_SET)
/* bit 15,3,2 are for frame list size */
#define USBCMD_FRAME_SIZE_1024 (0x00000000) /* 000 */
#define USBCMD_FRAME_SIZE_512 (0x00000004) /* 001 */
#define USBCMD_FRAME_SIZE_256 (0x00000008) /* 010 */
#define USBCMD_FRAME_SIZE_128 (0x0000000C) /* 011 */
#define USBCMD_FRAME_SIZE_64 (0x00008000) /* 100 */
#define USBCMD_FRAME_SIZE_32 (0x00008004) /* 101 */
#define USBCMD_FRAME_SIZE_16 (0x00008008) /* 110 */
#define USBCMD_FRAME_SIZE_8 (0x0000800C) /* 111 */
#define EPCTRL_TX_ALL_MASK (0xFFFF0000)
#define EPCTRL_RX_ALL_MASK (0x0000FFFF)
#define EPCTRL_TX_DATA_TOGGLE_RST (0x00400000)
#define EPCTRL_TX_EP_STALL (0x00010000)
#define EPCTRL_RX_EP_STALL (0x00000001)
#define EPCTRL_RX_DATA_TOGGLE_RST (0x00000040)
#define EPCTRL_RX_ENABLE (0x00000080)
#define EPCTRL_TX_ENABLE (0x00800000)
#define EPCTRL_CONTROL (0x00000000)
#define EPCTRL_ISOCHRONOUS (0x00040000)
#define EPCTRL_BULK (0x00080000)
#define EPCTRL_INT (0x000C0000)
#define EPCTRL_TX_TYPE (0x000C0000)
#define EPCTRL_RX_TYPE (0x0000000C)
#define EPCTRL_DATA_TOGGLE_INHIBIT (0x00000020)
#define EPCTRL_TX_EP_TYPE_SHIFT (18)
#define EPCTRL_RX_EP_TYPE_SHIFT (2)
#define EPCOMPLETE_MAX_ENDPOINTS (16)
/* endpoint list address bit masks */
#define USB_EP_LIST_ADDRESS_MASK 0xfffff800
#define PORTSCX_W1C_BITS 0x2a
#define PORTSCX_PORT_RESET 0x00000100
#define PORTSCX_PORT_POWER 0x00001000
#define PORTSCX_FORCE_FULL_SPEED_CONNECT 0x01000000
#define PORTSCX_PAR_XCVR_SELECT 0xC0000000
#define PORTSCX_PORT_FORCE_RESUME 0x00000040
#define PORTSCX_PORT_SUSPEND 0x00000080
#define PORTSCX_PORT_SPEED_FULL 0x00000000
#define PORTSCX_PORT_SPEED_LOW 0x04000000
#define PORTSCX_PORT_SPEED_HIGH 0x08000000
#define PORTSCX_PORT_SPEED_MASK 0x0C000000
/* USB MODE Register Bit Masks */
#define USBMODE_CTRL_MODE_IDLE 0x00000000
#define USBMODE_CTRL_MODE_DEVICE 0x00000002
#define USBMODE_CTRL_MODE_HOST 0x00000003
#define USBMODE_CTRL_MODE_RSV 0x00000001
#define USBMODE_SETUP_LOCK_OFF 0x00000008
#define USBMODE_STREAM_DISABLE 0x00000010
/* USB STS Register Bit Masks */
#define USBSTS_INT 0x00000001
#define USBSTS_ERR 0x00000002
#define USBSTS_PORT_CHANGE 0x00000004
#define USBSTS_FRM_LST_ROLL 0x00000008
#define USBSTS_SYS_ERR 0x00000010
#define USBSTS_IAA 0x00000020
#define USBSTS_RESET 0x00000040
#define USBSTS_SOF 0x00000080
#define USBSTS_SUSPEND 0x00000100
#define USBSTS_HC_HALTED 0x00001000
#define USBSTS_RCL 0x00002000
#define USBSTS_PERIODIC_SCHEDULE 0x00004000
#define USBSTS_ASYNC_SCHEDULE 0x00008000
/* Interrupt Enable Register Bit Masks */
#define USBINTR_INT_EN (0x00000001)
#define USBINTR_ERR_INT_EN (0x00000002)
#define USBINTR_PORT_CHANGE_DETECT_EN (0x00000004)
#define USBINTR_ASYNC_ADV_AAE (0x00000020)
#define USBINTR_ASYNC_ADV_AAE_ENABLE (0x00000020)
#define USBINTR_ASYNC_ADV_AAE_DISABLE (0xFFFFFFDF)
#define USBINTR_RESET_EN (0x00000040)
#define USBINTR_SOF_UFRAME_EN (0x00000080)
#define USBINTR_DEVICE_SUSPEND (0x00000100)
#define USB_DEVICE_ADDRESS_MASK (0xfe000000)
#define USB_DEVICE_ADDRESS_BIT_SHIFT (25)
struct mv_cap_regs {
u32 caplength_hciversion;
u32 hcsparams; /* HC structural parameters */
u32 hccparams; /* HC Capability Parameters*/
u32 reserved[5];
u32 dciversion; /* DC version number and reserved 16 bits */
u32 dccparams; /* DC Capability Parameters */
};
struct mv_op_regs {
u32 usbcmd; /* Command register */
u32 usbsts; /* Status register */
u32 usbintr; /* Interrupt enable */
u32 frindex; /* Frame index */
u32 reserved1[1];
u32 deviceaddr; /* Device Address */
u32 eplistaddr; /* Endpoint List Address */
u32 ttctrl; /* HOST TT status and control */
u32 burstsize; /* Programmable Burst Size */
u32 txfilltuning; /* Host Transmit Pre-Buffer Packet Tuning */
u32 reserved[4];
u32 epnak; /* Endpoint NAK */
u32 epnaken; /* Endpoint NAK Enable */
u32 configflag; /* Configured Flag register */
u32 portsc[VUSBHS_MAX_PORTS]; /* Port Status/Control x, x = 1..8 */
u32 otgsc;
u32 usbmode; /* USB Host/Device mode */
u32 epsetupstat; /* Endpoint Setup Status */
u32 epprime; /* Endpoint Initialize */
u32 epflush; /* Endpoint De-initialize */
u32 epstatus; /* Endpoint Status */
u32 epcomplete; /* Endpoint Interrupt On Complete */
u32 epctrlx[16]; /* Endpoint Control, where x = 0.. 15 */
u32 mcr; /* Mux Control */
u32 isr; /* Interrupt Status */
u32 ier; /* Interrupt Enable */
};
struct mv_udc {
struct usb_gadget gadget;
struct usb_gadget_driver *driver;
spinlock_t lock;
struct completion *done;
struct platform_device *dev;
int irq;
struct mv_cap_regs __iomem *cap_regs;
struct mv_op_regs __iomem *op_regs;
void __iomem *phy_regs;
unsigned int max_eps;
struct mv_dqh *ep_dqh;
size_t ep_dqh_size;
dma_addr_t ep_dqh_dma;
struct dma_pool *dtd_pool;
struct mv_ep *eps;
struct mv_dtd *dtd_head;
struct mv_dtd *dtd_tail;
unsigned int dtd_entries;
struct mv_req *status_req;
struct usb_ctrlrequest local_setup_buff;
unsigned int resume_state; /* USB state to resume */
unsigned int usb_state; /* USB current state */
unsigned int ep0_state; /* Endpoint zero state */
unsigned int ep0_dir;
unsigned int dev_addr;
unsigned int test_mode;
int errors;
unsigned softconnect:1,
vbus_active:1,
remote_wakeup:1,
softconnected:1,
force_fs:1,
clock_gating:1,
active:1,
stopped:1; /* stop bit is setted */
struct work_struct vbus_work;
struct workqueue_struct *qwork;
struct usb_phy *transceiver;
struct mv_usb_platform_data *pdata;
/* some SOC has mutiple clock sources for USB*/
struct clk *clk;
};
/* endpoint data structure */
struct mv_ep {
struct usb_ep ep;
struct mv_udc *udc;
struct list_head queue;
struct mv_dqh *dqh;
u32 direction;
char name[14];
unsigned stopped:1,
wedge:1,
ep_type:2,
ep_num:8;
};
/* request data structure */
struct mv_req {
struct usb_request req;
struct mv_dtd *dtd, *head, *tail;
struct mv_ep *ep;
struct list_head queue;
unsigned int test_mode;
unsigned dtd_count;
unsigned mapped:1;
};
#define EP_QUEUE_HEAD_MULT_POS 30
#define EP_QUEUE_HEAD_ZLT_SEL 0x20000000
#define EP_QUEUE_HEAD_MAX_PKT_LEN_POS 16
#define EP_QUEUE_HEAD_MAX_PKT_LEN(ep_info) (((ep_info)>>16)&0x07ff)
#define EP_QUEUE_HEAD_IOS 0x00008000
#define EP_QUEUE_HEAD_NEXT_TERMINATE 0x00000001
#define EP_QUEUE_HEAD_IOC 0x00008000
#define EP_QUEUE_HEAD_MULTO 0x00000C00
#define EP_QUEUE_HEAD_STATUS_HALT 0x00000040
#define EP_QUEUE_HEAD_STATUS_ACTIVE 0x00000080
#define EP_QUEUE_CURRENT_OFFSET_MASK 0x00000FFF
#define EP_QUEUE_HEAD_NEXT_POINTER_MASK 0xFFFFFFE0
#define EP_QUEUE_FRINDEX_MASK 0x000007FF
#define EP_MAX_LENGTH_TRANSFER 0x4000
struct mv_dqh {
/* Bits 16..26 Bit 15 is Interrupt On Setup */
u32 max_packet_length;
u32 curr_dtd_ptr; /* Current dTD Pointer */
u32 next_dtd_ptr; /* Next dTD Pointer */
/* Total bytes (16..30), IOC (15), INT (8), STS (0-7) */
u32 size_ioc_int_sts;
u32 buff_ptr0; /* Buffer pointer Page 0 (12-31) */
u32 buff_ptr1; /* Buffer pointer Page 1 (12-31) */
u32 buff_ptr2; /* Buffer pointer Page 2 (12-31) */
u32 buff_ptr3; /* Buffer pointer Page 3 (12-31) */
u32 buff_ptr4; /* Buffer pointer Page 4 (12-31) */
u32 reserved1;
/* 8 bytes of setup data that follows the Setup PID */
u8 setup_buffer[8];
u32 reserved2[4];
};
#define DTD_NEXT_TERMINATE (0x00000001)
#define DTD_IOC (0x00008000)
#define DTD_STATUS_ACTIVE (0x00000080)
#define DTD_STATUS_HALTED (0x00000040)
#define DTD_STATUS_DATA_BUFF_ERR (0x00000020)
#define DTD_STATUS_TRANSACTION_ERR (0x00000008)
#define DTD_RESERVED_FIELDS (0x00007F00)
#define DTD_ERROR_MASK (0x68)
#define DTD_ADDR_MASK (0xFFFFFFE0)
#define DTD_PACKET_SIZE 0x7FFF0000
#define DTD_LENGTH_BIT_POS (16)
struct mv_dtd {
u32 dtd_next;
u32 size_ioc_sts;
u32 buff_ptr0; /* Buffer pointer Page 0 */
u32 buff_ptr1; /* Buffer pointer Page 1 */
u32 buff_ptr2; /* Buffer pointer Page 2 */
u32 buff_ptr3; /* Buffer pointer Page 3 */
u32 buff_ptr4; /* Buffer pointer Page 4 */
u32 scratch_ptr;
/* 32 bytes */
dma_addr_t td_dma; /* dma address for this td */
struct mv_dtd *next_dtd_virt;
};
#endif
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