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/*
* (C) Copyright 2009
* Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __DW_UDC_H
#define __DW_UDC_H
/*
* Defines for USBD
*
* The udc_ahb controller has three AHB slaves:
*
* 1. THe UDC registers
* 2. The plug detect
* 3. The RX/TX FIFO
*/
#define MAX_ENDPOINTS 16
struct udc_endp_regs {
u32 endp_cntl;
u32 endp_status;
u32 endp_bsorfn;
u32 endp_maxpacksize;
u32 reserved_1;
u32 endp_desc_point;
u32 reserved_2;
u32 write_done;
};
/* Endpoint Control Register definitions */
#define ENDP_CNTL_STALL 0x00000001
#define ENDP_CNTL_FLUSH 0x00000002
#define ENDP_CNTL_SNOOP 0x00000004
#define ENDP_CNTL_POLL 0x00000008
#define ENDP_CNTL_CONTROL 0x00000000
#define ENDP_CNTL_ISO 0x00000010
#define ENDP_CNTL_BULK 0x00000020
#define ENDP_CNTL_INT 0x00000030
#define ENDP_CNTL_NAK 0x00000040
#define ENDP_CNTL_SNAK 0x00000080
#define ENDP_CNTL_CNAK 0x00000100
#define ENDP_CNTL_RRDY 0x00000200
/* Endpoint Satus Register definitions */
#define ENDP_STATUS_PIDMSK 0x0000000f
#define ENDP_STATUS_OUTMSK 0x00000030
#define ENDP_STATUS_OUT_NONE 0x00000000
#define ENDP_STATUS_OUT_DATA 0x00000010
#define ENDP_STATUS_OUT_SETUP 0x00000020
#define ENDP_STATUS_IN 0x00000040
#define ENDP_STATUS_BUFFNAV 0x00000080
#define ENDP_STATUS_FATERR 0x00000100
#define ENDP_STATUS_HOSTBUSERR 0x00000200
#define ENDP_STATUS_TDC 0x00000400
#define ENDP_STATUS_RXPKTMSK 0x003ff800
struct udc_regs {
struct udc_endp_regs in_regs[MAX_ENDPOINTS];
struct udc_endp_regs out_regs[MAX_ENDPOINTS];
u32 dev_conf;
u32 dev_cntl;
u32 dev_stat;
u32 dev_int;
u32 dev_int_mask;
u32 endp_int;
u32 endp_int_mask;
u32 reserved_3[0x39];
u32 reserved_4; /* offset 0x500 */
u32 udc_endp_reg[MAX_ENDPOINTS];
};
/* Device Configuration Register definitions */
#define DEV_CONF_HS_SPEED 0x00000000
#define DEV_CONF_LS_SPEED 0x00000002
#define DEV_CONF_FS_SPEED 0x00000003
#define DEV_CONF_REMWAKEUP 0x00000004
#define DEV_CONF_SELFPOW 0x00000008
#define DEV_CONF_SYNCFRAME 0x00000010
#define DEV_CONF_PHYINT_8 0x00000020
#define DEV_CONF_PHYINT_16 0x00000000
#define DEV_CONF_UTMI_BIDIR 0x00000040
#define DEV_CONF_STATUS_STALL 0x00000080
/* Device Control Register definitions */
#define DEV_CNTL_RESUME 0x00000001
#define DEV_CNTL_TFFLUSH 0x00000002
#define DEV_CNTL_RXDMAEN 0x00000004
#define DEV_CNTL_TXDMAEN 0x00000008
#define DEV_CNTL_DESCRUPD 0x00000010
#define DEV_CNTL_BIGEND 0x00000020
#define DEV_CNTL_BUFFILL 0x00000040
#define DEV_CNTL_TSHLDEN 0x00000080
#define DEV_CNTL_BURSTEN 0x00000100
#define DEV_CNTL_DMAMODE 0x00000200
#define DEV_CNTL_SOFTDISCONNECT 0x00000400
#define DEV_CNTL_SCALEDOWN 0x00000800
#define DEV_CNTL_BURSTLENU 0x00010000
#define DEV_CNTL_BURSTLENMSK 0x00ff0000
#define DEV_CNTL_TSHLDLENU 0x01000000
#define DEV_CNTL_TSHLDLENMSK 0xff000000
/* Device Status Register definitions */
#define DEV_STAT_CFG 0x0000000f
#define DEV_STAT_INTF 0x000000f0
#define DEV_STAT_ALT 0x00000f00
#define DEV_STAT_SUSP 0x00001000
#define DEV_STAT_ENUM 0x00006000
#define DEV_STAT_ENUM_SPEED_HS 0x00000000
#define DEV_STAT_ENUM_SPEED_FS 0x00002000
#define DEV_STAT_ENUM_SPEED_LS 0x00004000
#define DEV_STAT_RXFIFO_EMPTY 0x00008000
#define DEV_STAT_PHY_ERR 0x00010000
#define DEV_STAT_TS 0xf0000000
/* Device Interrupt Register definitions */
#define DEV_INT_MSK 0x0000007f
#define DEV_INT_SETCFG 0x00000001
#define DEV_INT_SETINTF 0x00000002
#define DEV_INT_INACTIVE 0x00000004
#define DEV_INT_USBRESET 0x00000008
#define DEV_INT_SUSPUSB 0x00000010
#define DEV_INT_SOF 0x00000020
#define DEV_INT_ENUM 0x00000040
/* Endpoint Interrupt Register definitions */
#define ENDP0_INT_CTRLIN 0x00000001
#define ENDP1_INT_BULKIN 0x00000002
#define ENDP_INT_NONISOIN_MSK 0x0000AAAA
#define ENDP2_INT_BULKIN 0x00000004
#define ENDP0_INT_CTRLOUT 0x00010000
#define ENDP1_INT_BULKOUT 0x00020000
#define ENDP2_INT_BULKOUT 0x00040000
#define ENDP_INT_NONISOOUT_MSK 0x55540000
/* Endpoint Register definitions */
#define ENDP_EPDIR_OUT 0x00000000
#define ENDP_EPDIR_IN 0x00000010
#define ENDP_EPTYPE_CNTL 0x0
#define ENDP_EPTYPE_ISO 0x1
#define ENDP_EPTYPE_BULK 0x2
#define ENDP_EPTYPE_INT 0x3
/*
* Defines for Plug Detect
*/
struct plug_regs {
u32 plug_state;
u32 plug_pending;
};
/* Plug State Register definitions */
#define PLUG_STATUS_EN 0x1
#define PLUG_STATUS_ATTACHED 0x2
#define PLUG_STATUS_PHY_RESET 0x4
#define PLUG_STATUS_PHY_MODE 0x8
/*
* Defines for UDC FIFO (Slave Mode)
*/
struct udcfifo_regs {
u32 *fifo_p;
};
/*
* USBTTY definitions
*/
#define EP0_MAX_PACKET_SIZE 64
#define UDC_INT_ENDPOINT 1
#define UDC_INT_PACKET_SIZE 64
#define UDC_OUT_ENDPOINT 2
#define UDC_BULK_PACKET_SIZE 64
#define UDC_BULK_HS_PACKET_SIZE 512
#define UDC_IN_ENDPOINT 3
#define UDC_OUT_PACKET_SIZE 64
#define UDC_IN_PACKET_SIZE 64
/*
* UDC endpoint definitions
*/
#define UDC_EP0 0
#define UDC_EP1 1
#define UDC_EP2 2
#define UDC_EP3 3
/*
* Function declarations
*/
void udc_irq(void);
void udc_set_nak(int epid);
void udc_unset_nak(int epid);
int udc_endpoint_write(struct usb_endpoint_instance *endpoint);
int udc_init(void);
void udc_enable(struct usb_device_instance *device);
void udc_disable(void);
void udc_connect(void);
void udc_disconnect(void);
void udc_startup_events(struct usb_device_instance *device);
void udc_setup_ep(struct usb_device_instance *device, unsigned int ep,
struct usb_endpoint_instance *endpoint);
#endif /* __DW_UDC_H */
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