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