Quelle core.h
Sprache: C
/* SPDX-License-Identifier: GPL-2.0 */
/*
* core . h - DesignWare USB3 DRD Core Header
*
* Copyright ( C ) 2010 - 2011 Texas Instruments Incorporated - https : //www.ti.com
*
* Authors : Felipe Balbi < balbi @ ti . com > ,
* Sebastian Andrzej Siewior < bigeasy @ linutronix . de >
*/
#ifndef __DRIVERS_USB_DWC3_CORE_H
#define __DRIVERS_USB_DWC3_CORE_H
#include <linux/device.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/ioport.h>
#include <linux/list.h>
#include <linux/bitops.h>
#include <linux/dma-mapping.h>
#include <linux/mm.h>
#include <linux/debugfs.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>
#include <linux/usb/role.h>
#include <linux/ulpi/interface.h>
#include <linux/phy/phy.h>
#include <linux/power_supply.h>
/*
* DWC3 Multiport controllers support up to 15 High - Speed PHYs
* and 4 SuperSpeed PHYs .
*/
#define DWC3_USB2_MAX_PORTS 15
#define DWC3_USB3_MAX_PORTS 4
#define DWC3_MSG_MAX 500
/* Global constants */
#define DWC3_PULL_UP_TIMEOUT 500 /* ms */
#define DWC3_BOUNCE_SIZE 1024 /* size of a superspeed bulk */
#define DWC3_EP0_SETUP_SIZE 512
#define DWC3_ENDPOINTS_NUM 32
#define DWC3_XHCI_RESOURCES_NUM 2
#define DWC3_ISOC_MAX_RETRIES 5
#define DWC3_SCRATCHBUF_SIZE 4096 /* each buffer is assumed to be 4KiB */
#define DWC3_EVENT_BUFFERS_SIZE 4096
#define DWC3_EVENT_TYPE_MASK 0 xfe
#define DWC3_EVENT_TYPE_DEV 0
#define DWC3_EVENT_TYPE_CARKIT 3
#define DWC3_EVENT_TYPE_I2C 4
#define DWC3_DEVICE_EVENT_DISCONNECT 0
#define DWC3_DEVICE_EVENT_RESET 1
#define DWC3_DEVICE_EVENT_CONNECT_DONE 2
#define DWC3_DEVICE_EVENT_LINK_STATUS_CHANGE 3
#define DWC3_DEVICE_EVENT_WAKEUP 4
#define DWC3_DEVICE_EVENT_HIBER_REQ 5
#define DWC3_DEVICE_EVENT_SUSPEND 6
#define DWC3_DEVICE_EVENT_SOF 7
#define DWC3_DEVICE_EVENT_ERRATIC_ERROR 9
#define DWC3_DEVICE_EVENT_CMD_CMPL 10
#define DWC3_DEVICE_EVENT_OVERFLOW 11
/* Controller's role while using the OTG block */
#define DWC3_OTG_ROLE_IDLE 0
#define DWC3_OTG_ROLE_HOST 1
#define DWC3_OTG_ROLE_DEVICE 2
#define DWC3_GEVNTCOUNT_MASK 0 xfffc
#define DWC3_GEVNTCOUNT_EHB BIT(31 )
#define DWC3_GSNPSID_MASK 0 xffff0000
#define DWC3_GSNPSREV_MASK 0 xffff
#define DWC3_GSNPS_ID(p) (((p) & DWC3_GSNPSID_MASK) >> 16 )
/* DWC3 registers memory space boundaries */
#define DWC3_XHCI_REGS_START 0 x0
#define DWC3_XHCI_REGS_END 0 x7fff
#define DWC3_GLOBALS_REGS_START 0 xc100
#define DWC3_GLOBALS_REGS_END 0 xc6ff
#define DWC3_DEVICE_REGS_START 0 xc700
#define DWC3_DEVICE_REGS_END 0 xcbff
#define DWC3_OTG_REGS_START 0 xcc00
#define DWC3_OTG_REGS_END 0 xccff
#define DWC3_RTK_RTD_GLOBALS_REGS_START 0 x8100
/* Global Registers */
#define DWC3_GSBUSCFG0 0 xc100
#define DWC3_GSBUSCFG1 0 xc104
#define DWC3_GTXTHRCFG 0 xc108
#define DWC3_GRXTHRCFG 0 xc10c
#define DWC3_GCTL 0 xc110
#define DWC3_GEVTEN 0 xc114
#define DWC3_GSTS 0 xc118
#define DWC3_GUCTL1 0 xc11c
#define DWC3_GSNPSID 0 xc120
#define DWC3_GGPIO 0 xc124
#define DWC3_GUID 0 xc128
#define DWC3_GUCTL 0 xc12c
#define DWC3_GBUSERRADDR0 0 xc130
#define DWC3_GBUSERRADDR1 0 xc134
#define DWC3_GPRTBIMAP0 0 xc138
#define DWC3_GPRTBIMAP1 0 xc13c
#define DWC3_GHWPARAMS0 0 xc140
#define DWC3_GHWPARAMS1 0 xc144
#define DWC3_GHWPARAMS2 0 xc148
#define DWC3_GHWPARAMS3 0 xc14c
#define DWC3_GHWPARAMS4 0 xc150
#define DWC3_GHWPARAMS5 0 xc154
#define DWC3_GHWPARAMS6 0 xc158
#define DWC3_GHWPARAMS7 0 xc15c
#define DWC3_GDBGFIFOSPACE 0 xc160
#define DWC3_GDBGLTSSM 0 xc164
#define DWC3_GDBGBMU 0 xc16c
#define DWC3_GDBGLSPMUX 0 xc170
#define DWC3_GDBGLSP 0 xc174
#define DWC3_GDBGEPINFO0 0 xc178
#define DWC3_GDBGEPINFO1 0 xc17c
#define DWC3_GPRTBIMAP_HS0 0 xc180
#define DWC3_GPRTBIMAP_HS1 0 xc184
#define DWC3_GPRTBIMAP_FS0 0 xc188
#define DWC3_GPRTBIMAP_FS1 0 xc18c
#define DWC3_GUCTL2 0 xc19c
#define DWC3_VER_NUMBER 0 xc1a0
#define DWC3_VER_TYPE 0 xc1a4
#define DWC3_GUSB2PHYCFG(n) (0 xc200 + ((n) * 0 x04))
#define DWC3_GUSB2I2CCTL(n) (0 xc240 + ((n) * 0 x04))
#define DWC3_GUSB2PHYACC(n) (0 xc280 + ((n) * 0 x04))
#define DWC3_GUSB3PIPECTL(n) (0 xc2c0 + ((n) * 0 x04))
#define DWC3_GTXFIFOSIZ(n) (0 xc300 + ((n) * 0 x04))
#define DWC3_GRXFIFOSIZ(n) (0 xc380 + ((n) * 0 x04))
#define DWC3_GEVNTADRLO(n) (0 xc400 + ((n) * 0 x10))
#define DWC3_GEVNTADRHI(n) (0 xc404 + ((n) * 0 x10))
#define DWC3_GEVNTSIZ(n) (0 xc408 + ((n) * 0 x10))
#define DWC3_GEVNTCOUNT(n) (0 xc40c + ((n) * 0 x10))
#define DWC3_GHWPARAMS8 0 xc600
#define DWC3_GUCTL3 0 xc60c
#define DWC3_GFLADJ 0 xc630
#define DWC3_GHWPARAMS9 0 xc6e0
/* Device Registers */
#define DWC3_DCFG 0 xc700
#define DWC3_DCTL 0 xc704
#define DWC3_DEVTEN 0 xc708
#define DWC3_DSTS 0 xc70c
#define DWC3_DGCMDPAR 0 xc710
#define DWC3_DGCMD 0 xc714
#define DWC3_DALEPENA 0 xc720
#define DWC3_DCFG1 0 xc740 /* DWC_usb32 only */
#define DWC3_DEP_BASE(n) (0 xc800 + ((n) * 0 x10))
#define DWC3_DEPCMDPAR2 0 x00
#define DWC3_DEPCMDPAR1 0 x04
#define DWC3_DEPCMDPAR0 0 x08
#define DWC3_DEPCMD 0 x0c
#define DWC3_DEV_IMOD(n) (0 xca00 + ((n) * 0 x4))
/* OTG Registers */
#define DWC3_OCFG 0 xcc00
#define DWC3_OCTL 0 xcc04
#define DWC3_OEVT 0 xcc08
#define DWC3_OEVTEN 0 xcc0C
#define DWC3_OSTS 0 xcc10
#define DWC3_LLUCTL(n) (0 xd024 + ((n) * 0 x80))
/* Bit fields */
/* Global SoC Bus Configuration INCRx Register 0 */
#define DWC3_GSBUSCFG0_INCR256BRSTENA (1 << 7 ) /* INCR256 burst */
#define DWC3_GSBUSCFG0_INCR128BRSTENA (1 << 6 ) /* INCR128 burst */
#define DWC3_GSBUSCFG0_INCR64BRSTENA (1 << 5 ) /* INCR64 burst */
#define DWC3_GSBUSCFG0_INCR32BRSTENA (1 << 4 ) /* INCR32 burst */
#define DWC3_GSBUSCFG0_INCR16BRSTENA (1 << 3 ) /* INCR16 burst */
#define DWC3_GSBUSCFG0_INCR8BRSTENA (1 << 2 ) /* INCR8 burst */
#define DWC3_GSBUSCFG0_INCR4BRSTENA (1 << 1 ) /* INCR4 burst */
#define DWC3_GSBUSCFG0_INCRBRSTENA (1 << 0 ) /* undefined length enable */
#define DWC3_GSBUSCFG0_INCRBRST_MASK 0 xff
/* Global SoC Bus Configuration Register: AHB-prot/AXI-cache/OCP-ReqInfo */
#define DWC3_GSBUSCFG0_REQINFO(n) (((n) & 0 xffff) << 16 )
#define DWC3_GSBUSCFG0_REQINFO_UNSPECIFIED 0 xffffffff
/* Global Debug LSP MUX Select */
#define DWC3_GDBGLSPMUX_ENDBC BIT(15 ) /* Host only */
#define DWC3_GDBGLSPMUX_HOSTSELECT(n) ((n) & 0 x3fff)
#define DWC3_GDBGLSPMUX_DEVSELECT(n) (((n) & 0 xf) << 4 )
#define DWC3_GDBGLSPMUX_EPSELECT(n) ((n) & 0 xf)
/* Global Debug Queue/FIFO Space Available Register */
#define DWC3_GDBGFIFOSPACE_NUM(n) ((n) & 0 x1f)
#define DWC3_GDBGFIFOSPACE_TYPE(n) (((n) << 5 ) & 0 x1e0)
#define DWC3_GDBGFIFOSPACE_SPACE_AVAILABLE(n) (((n) >> 16 ) & 0 xffff)
#define DWC3_TXFIFO 0
#define DWC3_RXFIFO 1
#define DWC3_TXREQQ 2
#define DWC3_RXREQQ 3
#define DWC3_RXINFOQ 4
#define DWC3_PSTATQ 5
#define DWC3_DESCFETCHQ 6
#define DWC3_EVENTQ 7
#define DWC3_AUXEVENTQ 8
/* Global RX Threshold Configuration Register */
#define DWC3_GRXTHRCFG_MAXRXBURSTSIZE(n) (((n) & 0 x1f) << 19 )
#define DWC3_GRXTHRCFG_RXPKTCNT(n) (((n) & 0 xf) << 24 )
#define DWC3_GRXTHRCFG_PKTCNTSEL BIT(29 )
/* Global TX Threshold Configuration Register */
#define DWC3_GTXTHRCFG_MAXTXBURSTSIZE(n) (((n) & 0 xff) << 16 )
#define DWC3_GTXTHRCFG_TXPKTCNT(n) (((n) & 0 xf) << 24 )
#define DWC3_GTXTHRCFG_PKTCNTSEL BIT(29 )
/* Global RX Threshold Configuration Register for DWC_usb31 only */
#define DWC31_GRXTHRCFG_MAXRXBURSTSIZE(n) (((n) & 0 x1f) << 16 )
#define DWC31_GRXTHRCFG_RXPKTCNT(n) (((n) & 0 x1f) << 21 )
#define DWC31_GRXTHRCFG_PKTCNTSEL BIT(26 )
#define DWC31_RXTHRNUMPKTSEL_HS_PRD BIT(15 )
#define DWC31_RXTHRNUMPKT_HS_PRD(n) (((n) & 0 x3) << 13 )
#define DWC31_RXTHRNUMPKTSEL_PRD BIT(10 )
#define DWC31_RXTHRNUMPKT_PRD(n) (((n) & 0 x1f) << 5 )
#define DWC31_MAXRXBURSTSIZE_PRD(n) ((n) & 0 x1f)
/* Global TX Threshold Configuration Register for DWC_usb31 only */
#define DWC31_GTXTHRCFG_MAXTXBURSTSIZE(n) (((n) & 0 x1f) << 16 )
#define DWC31_GTXTHRCFG_TXPKTCNT(n) (((n) & 0 x1f) << 21 )
#define DWC31_GTXTHRCFG_PKTCNTSEL BIT(26 )
#define DWC31_TXTHRNUMPKTSEL_HS_PRD BIT(15 )
#define DWC31_TXTHRNUMPKT_HS_PRD(n) (((n) & 0 x3) << 13 )
#define DWC31_TXTHRNUMPKTSEL_PRD BIT(10 )
#define DWC31_TXTHRNUMPKT_PRD(n) (((n) & 0 x1f) << 5 )
#define DWC31_MAXTXBURSTSIZE_PRD(n) ((n) & 0 x1f)
/* Global Configuration Register */
#define DWC3_GCTL_PWRDNSCALE(n) ((n) << 19 )
#define DWC3_GCTL_PWRDNSCALE_MASK GENMASK(31 , 19 )
#define DWC3_GCTL_U2RSTECN BIT(16 )
#define DWC3_GCTL_RAMCLKSEL(x) (((x) & DWC3_GCTL_CLK_MASK) << 6 )
#define DWC3_GCTL_CLK_BUS (0 )
#define DWC3_GCTL_CLK_PIPE (1 )
#define DWC3_GCTL_CLK_PIPEHALF (2 )
#define DWC3_GCTL_CLK_MASK (3 )
#define DWC3_GCTL_PRTCAP(n) (((n) & (3 << 12 )) >> 12 )
#define DWC3_GCTL_PRTCAPDIR(n) ((n) << 12 )
#define DWC3_GCTL_PRTCAP_HOST 1
#define DWC3_GCTL_PRTCAP_DEVICE 2
#define DWC3_GCTL_PRTCAP_OTG 3
#define DWC3_GCTL_CORESOFTRESET BIT(11 )
#define DWC3_GCTL_SOFITPSYNC BIT(10 )
#define DWC3_GCTL_SCALEDOWN(n) ((n) << 4 )
#define DWC3_GCTL_SCALEDOWN_MASK DWC3_GCTL_SCALEDOWN(3 )
#define DWC3_GCTL_DISSCRAMBLE BIT(3 )
#define DWC3_GCTL_U2EXIT_LFPS BIT(2 )
#define DWC3_GCTL_GBLHIBERNATIONEN BIT(1 )
#define DWC3_GCTL_DSBLCLKGTNG BIT(0 )
/* Global User Control 1 Register */
#define DWC3_GUCTL1_DEV_DECOUPLE_L1L2_EVT BIT(31 )
#define DWC3_GUCTL1_TX_IPGAP_LINECHECK_DIS BIT(28 )
#define DWC3_GUCTL1_DEV_FORCE_20_CLK_FOR_30_CLK BIT(26 )
#define DWC3_GUCTL1_DEV_L1_EXIT_BY_HW BIT(24 )
#define DWC3_GUCTL1_PARKMODE_DISABLE_SS BIT(17 )
#define DWC3_GUCTL1_PARKMODE_DISABLE_HS BIT(16 )
#define DWC3_GUCTL1_RESUME_OPMODE_HS_HOST BIT(10 )
/* Global Status Register */
#define DWC3_GSTS_OTG_IP BIT(10 )
#define DWC3_GSTS_BC_IP BIT(9 )
#define DWC3_GSTS_ADP_IP BIT(8 )
#define DWC3_GSTS_HOST_IP BIT(7 )
#define DWC3_GSTS_DEVICE_IP BIT(6 )
#define DWC3_GSTS_CSR_TIMEOUT BIT(5 )
#define DWC3_GSTS_BUS_ERR_ADDR_VLD BIT(4 )
#define DWC3_GSTS_CURMOD(n) ((n) & 0 x3)
#define DWC3_GSTS_CURMOD_DEVICE 0
#define DWC3_GSTS_CURMOD_HOST 1
/* Global USB2 PHY Configuration Register */
#define DWC3_GUSB2PHYCFG_PHYSOFTRST BIT(31 )
#define DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS BIT(30 )
#define DWC3_GUSB2PHYCFG_ULPIEXTVBUSDRV BIT(17 )
#define DWC3_GUSB2PHYCFG_SUSPHY BIT(6 )
#define DWC3_GUSB2PHYCFG_ULPI_UTMI BIT(4 )
#define DWC3_GUSB2PHYCFG_ENBLSLPM BIT(8 )
#define DWC3_GUSB2PHYCFG_PHYIF(n) (n << 3 )
#define DWC3_GUSB2PHYCFG_PHYIF_MASK DWC3_GUSB2PHYCFG_PHYIF(1 )
#define DWC3_GUSB2PHYCFG_USBTRDTIM(n) (n << 10 )
#define DWC3_GUSB2PHYCFG_USBTRDTIM_MASK DWC3_GUSB2PHYCFG_USBTRDTIM(0 xf)
#define USBTRDTIM_UTMI_8_BIT 9
#define USBTRDTIM_UTMI_16_BIT 5
#define UTMI_PHYIF_16_BIT 1
#define UTMI_PHYIF_8_BIT 0
/* Global USB2 PHY Vendor Control Register */
#define DWC3_GUSB2PHYACC_NEWREGREQ BIT(25 )
#define DWC3_GUSB2PHYACC_DONE BIT(24 )
#define DWC3_GUSB2PHYACC_BUSY BIT(23 )
#define DWC3_GUSB2PHYACC_WRITE BIT(22 )
#define DWC3_GUSB2PHYACC_ADDR(n) (n << 16 )
#define DWC3_GUSB2PHYACC_EXTEND_ADDR(n) (n << 8 )
#define DWC3_GUSB2PHYACC_DATA(n) (n & 0 xff)
/* Global USB3 PIPE Control Register */
#define DWC3_GUSB3PIPECTL_PHYSOFTRST BIT(31 )
#define DWC3_GUSB3PIPECTL_U2SSINP3OK BIT(29 )
#define DWC3_GUSB3PIPECTL_DISRXDETINP3 BIT(28 )
#define DWC3_GUSB3PIPECTL_UX_EXIT_PX BIT(27 )
#define DWC3_GUSB3PIPECTL_REQP1P2P3 BIT(24 )
#define DWC3_GUSB3PIPECTL_DEP1P2P3(n) ((n) << 19 )
#define DWC3_GUSB3PIPECTL_DEP1P2P3_MASK DWC3_GUSB3PIPECTL_DEP1P2P3(7 )
#define DWC3_GUSB3PIPECTL_DEP1P2P3_EN DWC3_GUSB3PIPECTL_DEP1P2P3(1 )
#define DWC3_GUSB3PIPECTL_DEPOCHANGE BIT(18 )
#define DWC3_GUSB3PIPECTL_SUSPHY BIT(17 )
#define DWC3_GUSB3PIPECTL_LFPSFILT BIT(9 )
#define DWC3_GUSB3PIPECTL_RX_DETOPOLL BIT(8 )
#define DWC3_GUSB3PIPECTL_TX_DEEPH_MASK DWC3_GUSB3PIPECTL_TX_DEEPH(3 )
#define DWC3_GUSB3PIPECTL_TX_DEEPH(n) ((n) << 1 )
/* Global TX Fifo Size Register */
#define DWC31_GTXFIFOSIZ_TXFRAMNUM BIT(15 ) /* DWC_usb31 only */
#define DWC31_GTXFIFOSIZ_TXFDEP(n) ((n) & 0 x7fff) /* DWC_usb31 only */
#define DWC3_GTXFIFOSIZ_TXFDEP(n) ((n) & 0 xffff)
#define DWC3_GTXFIFOSIZ_TXFSTADDR(n) ((n) & 0 xffff0000)
/* Global RX Fifo Size Register */
#define DWC31_GRXFIFOSIZ_RXFDEP(n) ((n) & 0 x7fff) /* DWC_usb31 only */
#define DWC3_GRXFIFOSIZ_RXFDEP(n) ((n) & 0 xffff)
/* Global Event Size Registers */
#define DWC3_GEVNTSIZ_INTMASK BIT(31 )
#define DWC3_GEVNTSIZ_SIZE(n) ((n) & 0 xffff)
/* Global HWPARAMS0 Register */
#define DWC3_GHWPARAMS0_MODE(n) ((n) & 0 x3)
#define DWC3_GHWPARAMS0_MODE_GADGET 0
#define DWC3_GHWPARAMS0_MODE_HOST 1
#define DWC3_GHWPARAMS0_MODE_DRD 2
#define DWC3_GHWPARAMS0_MBUS_TYPE(n) (((n) >> 3 ) & 0 x7)
#define DWC3_GHWPARAMS0_SBUS_TYPE(n) (((n) >> 6 ) & 0 x3)
#define DWC3_GHWPARAMS0_MDWIDTH(n) (((n) >> 8 ) & 0 xff)
#define DWC3_GHWPARAMS0_SDWIDTH(n) (((n) >> 16 ) & 0 xff)
#define DWC3_GHWPARAMS0_AWIDTH(n) (((n) >> 24 ) & 0 xff)
/* Global HWPARAMS1 Register */
#define DWC3_GHWPARAMS1_EN_PWROPT(n) (((n) & (3 << 24 )) >> 24 )
#define DWC3_GHWPARAMS1_EN_PWROPT_NO 0
#define DWC3_GHWPARAMS1_EN_PWROPT_CLK 1
#define DWC3_GHWPARAMS1_EN_PWROPT_HIB 2
#define DWC3_GHWPARAMS1_PWROPT(n) ((n) << 24 )
#define DWC3_GHWPARAMS1_PWROPT_MASK DWC3_GHWPARAMS1_PWROPT(3 )
#define DWC3_GHWPARAMS1_ENDBC BIT(31 )
/* Global HWPARAMS3 Register */
#define DWC3_GHWPARAMS3_SSPHY_IFC(n) ((n) & 3 )
#define DWC3_GHWPARAMS3_SSPHY_IFC_DIS 0
#define DWC3_GHWPARAMS3_SSPHY_IFC_GEN1 1
#define DWC3_GHWPARAMS3_SSPHY_IFC_GEN2 2 /* DWC_usb31 only */
#define DWC3_GHWPARAMS3_HSPHY_IFC(n) (((n) & (3 << 2 )) >> 2 )
#define DWC3_GHWPARAMS3_HSPHY_IFC_DIS 0
#define DWC3_GHWPARAMS3_HSPHY_IFC_UTMI 1
#define DWC3_GHWPARAMS3_HSPHY_IFC_ULPI 2
#define DWC3_GHWPARAMS3_HSPHY_IFC_UTMI_ULPI 3
#define DWC3_GHWPARAMS3_FSPHY_IFC(n) (((n) & (3 << 4 )) >> 4 )
#define DWC3_GHWPARAMS3_FSPHY_IFC_DIS 0
#define DWC3_GHWPARAMS3_FSPHY_IFC_ENA 1
/* Global HWPARAMS4 Register */
#define DWC3_GHWPARAMS4_HIBER_SCRATCHBUFS(n) (((n) & (0 x0f << 13 )) >> 13 )
#define DWC3_MAX_HIBER_SCRATCHBUFS 15
/* Global HWPARAMS6 Register */
#define DWC3_GHWPARAMS6_BCSUPPORT BIT(14 )
#define DWC3_GHWPARAMS6_OTG3SUPPORT BIT(13 )
#define DWC3_GHWPARAMS6_ADPSUPPORT BIT(12 )
#define DWC3_GHWPARAMS6_HNPSUPPORT BIT(11 )
#define DWC3_GHWPARAMS6_SRPSUPPORT BIT(10 )
#define DWC3_GHWPARAMS6_EN_FPGA BIT(7 )
/* DWC_usb32 only */
#define DWC3_GHWPARAMS6_MDWIDTH(n) ((n) & (0 x3 << 8 ))
/* Global HWPARAMS7 Register */
#define DWC3_GHWPARAMS7_RAM1_DEPTH(n) ((n) & 0 xffff)
#define DWC3_GHWPARAMS7_RAM2_DEPTH(n) (((n) >> 16 ) & 0 xffff)
/* Global HWPARAMS9 Register */
#define DWC3_GHWPARAMS9_DEV_TXF_FLUSH_BYPASS BIT(0 )
#define DWC3_GHWPARAMS9_DEV_MST BIT(1 )
/* Global Frame Length Adjustment Register */
#define DWC3_GFLADJ_30MHZ_SDBND_SEL BIT(7 )
#define DWC3_GFLADJ_30MHZ_MASK 0 x3f
#define DWC3_GFLADJ_REFCLK_FLADJ_MASK GENMASK(21 , 8 )
#define DWC3_GFLADJ_REFCLK_LPM_SEL BIT(23 )
#define DWC3_GFLADJ_240MHZDECR GENMASK(30 , 24 )
#define DWC3_GFLADJ_240MHZDECR_PLS1 BIT(31 )
/* Global User Control Register*/
#define DWC3_GUCTL_REFCLKPER_MASK 0 xffc00000
#define DWC3_GUCTL_REFCLKPER_SEL 22
/* Global User Control Register 2 */
#define DWC3_GUCTL2_RST_ACTBITLATER BIT(14 )
#define DWC3_GUCTL2_LC_TIMER BIT(19 )
/* Global User Control Register 3 */
#define DWC3_GUCTL3_SPLITDISABLE BIT(14 )
#define DWC3_GUCTL3_USB20_RETRY_DISABLE BIT(16 )
/* Device Configuration Register */
#define DWC3_DCFG_NUMLANES(n) (((n) & 0 x3) << 30 ) /* DWC_usb32 only */
#define DWC3_DCFG_DEVADDR(addr) ((addr) << 3 )
#define DWC3_DCFG_DEVADDR_MASK DWC3_DCFG_DEVADDR(0 x7f)
#define DWC3_DCFG_SPEED_MASK (7 << 0 )
#define DWC3_DCFG_SUPERSPEED_PLUS (5 << 0 ) /* DWC_usb31 only */
#define DWC3_DCFG_SUPERSPEED (4 << 0 )
#define DWC3_DCFG_HIGHSPEED (0 << 0 )
#define DWC3_DCFG_FULLSPEED BIT(0 )
#define DWC3_DCFG_NUMP_SHIFT 17
#define DWC3_DCFG_NUMP(n) (((n) >> DWC3_DCFG_NUMP_SHIFT) & 0 x1f)
#define DWC3_DCFG_NUMP_MASK (0 x1f << DWC3_DCFG_NUMP_SHIFT)
#define DWC3_DCFG_LPM_CAP BIT(22 )
#define DWC3_DCFG_IGNSTRMPP BIT(23 )
/* Device Control Register */
#define DWC3_DCTL_RUN_STOP BIT(31 )
#define DWC3_DCTL_CSFTRST BIT(30 )
#define DWC3_DCTL_LSFTRST BIT(29 )
#define DWC3_DCTL_HIRD_THRES_MASK (0 x1f << 24 )
#define DWC3_DCTL_HIRD_THRES(n) ((n) << 24 )
#define DWC3_DCTL_APPL1RES BIT(23 )
/* These apply for core versions 1.87a and earlier */
#define DWC3_DCTL_TRGTULST_MASK (0 x0f << 17 )
#define DWC3_DCTL_TRGTULST(n) ((n) << 17 )
#define DWC3_DCTL_TRGTULST_U2 (DWC3_DCTL_TRGTULST(2 ))
#define DWC3_DCTL_TRGTULST_U3 (DWC3_DCTL_TRGTULST(3 ))
#define DWC3_DCTL_TRGTULST_SS_DIS (DWC3_DCTL_TRGTULST(4 ))
#define DWC3_DCTL_TRGTULST_RX_DET (DWC3_DCTL_TRGTULST(5 ))
#define DWC3_DCTL_TRGTULST_SS_INACT (DWC3_DCTL_TRGTULST(6 ))
/* These apply for core versions 1.94a and later */
#define DWC3_DCTL_NYET_THRES_MASK (0 xf << 20 )
#define DWC3_DCTL_NYET_THRES(n) (((n) & 0 xf) << 20 )
#define DWC3_DCTL_KEEP_CONNECT BIT(19 )
#define DWC3_DCTL_L1_HIBER_EN BIT(18 )
#define DWC3_DCTL_CRS BIT(17 )
#define DWC3_DCTL_CSS BIT(16 )
#define DWC3_DCTL_INITU2ENA BIT(12 )
#define DWC3_DCTL_ACCEPTU2ENA BIT(11 )
#define DWC3_DCTL_INITU1ENA BIT(10 )
#define DWC3_DCTL_ACCEPTU1ENA BIT(9 )
#define DWC3_DCTL_TSTCTRL_MASK (0 xf << 1 )
#define DWC3_DCTL_ULSTCHNGREQ_MASK (0 x0f << 5 )
#define DWC3_DCTL_ULSTCHNGREQ(n) (((n) << 5 ) & DWC3_DCTL_ULSTCHNGREQ_MASK)
#define DWC3_DCTL_ULSTCHNG_NO_ACTION (DWC3_DCTL_ULSTCHNGREQ(0 ))
#define DWC3_DCTL_ULSTCHNG_SS_DISABLED (DWC3_DCTL_ULSTCHNGREQ(4 ))
#define DWC3_DCTL_ULSTCHNG_RX_DETECT (DWC3_DCTL_ULSTCHNGREQ(5 ))
#define DWC3_DCTL_ULSTCHNG_SS_INACTIVE (DWC3_DCTL_ULSTCHNGREQ(6 ))
#define DWC3_DCTL_ULSTCHNG_RECOVERY (DWC3_DCTL_ULSTCHNGREQ(8 ))
#define DWC3_DCTL_ULSTCHNG_COMPLIANCE (DWC3_DCTL_ULSTCHNGREQ(10 ))
#define DWC3_DCTL_ULSTCHNG_LOOPBACK (DWC3_DCTL_ULSTCHNGREQ(11 ))
/* Device Event Enable Register */
#define DWC3_DEVTEN_VNDRDEVTSTRCVEDEN BIT(12 )
#define DWC3_DEVTEN_EVNTOVERFLOWEN BIT(11 )
#define DWC3_DEVTEN_CMDCMPLTEN BIT(10 )
#define DWC3_DEVTEN_ERRTICERREN BIT(9 )
#define DWC3_DEVTEN_SOFEN BIT(7 )
#define DWC3_DEVTEN_U3L2L1SUSPEN BIT(6 )
#define DWC3_DEVTEN_HIBERNATIONREQEVTEN BIT(5 )
#define DWC3_DEVTEN_WKUPEVTEN BIT(4 )
#define DWC3_DEVTEN_ULSTCNGEN BIT(3 )
#define DWC3_DEVTEN_CONNECTDONEEN BIT(2 )
#define DWC3_DEVTEN_USBRSTEN BIT(1 )
#define DWC3_DEVTEN_DISCONNEVTEN BIT(0 )
#define DWC3_DSTS_CONNLANES(n) (((n) >> 30 ) & 0 x3) /* DWC_usb32 only */
/* Device Status Register */
#define DWC3_DSTS_DCNRD BIT(29 )
/* This applies for core versions 1.87a and earlier */
#define DWC3_DSTS_PWRUPREQ BIT(24 )
/* These apply for core versions 1.94a and later */
#define DWC3_DSTS_RSS BIT(25 )
#define DWC3_DSTS_SSS BIT(24 )
#define DWC3_DSTS_COREIDLE BIT(23 )
#define DWC3_DSTS_DEVCTRLHLT BIT(22 )
#define DWC3_DSTS_USBLNKST_MASK (0 x0f << 18 )
#define DWC3_DSTS_USBLNKST(n) (((n) & DWC3_DSTS_USBLNKST_MASK) >> 18 )
#define DWC3_DSTS_RXFIFOEMPTY BIT(17 )
#define DWC3_DSTS_SOFFN_MASK (0 x3fff << 3 )
#define DWC3_DSTS_SOFFN(n) (((n) & DWC3_DSTS_SOFFN_MASK) >> 3 )
#define DWC3_DSTS_CONNECTSPD (7 << 0 )
#define DWC3_DSTS_SUPERSPEED_PLUS (5 << 0 ) /* DWC_usb31 only */
#define DWC3_DSTS_SUPERSPEED (4 << 0 )
#define DWC3_DSTS_HIGHSPEED (0 << 0 )
#define DWC3_DSTS_FULLSPEED BIT(0 )
/* Device Generic Command Register */
#define DWC3_DGCMD_SET_LMP 0 x01
#define DWC3_DGCMD_SET_PERIODIC_PAR 0 x02
#define DWC3_DGCMD_XMIT_FUNCTION 0 x03
/* These apply for core versions 1.94a and later */
#define DWC3_DGCMD_SET_SCRATCHPAD_ADDR_LO 0 x04
#define DWC3_DGCMD_SET_SCRATCHPAD_ADDR_HI 0 x05
#define DWC3_DGCMD_SELECTED_FIFO_FLUSH 0 x09
#define DWC3_DGCMD_ALL_FIFO_FLUSH 0 x0a
#define DWC3_DGCMD_SET_ENDPOINT_NRDY 0 x0c
#define DWC3_DGCMD_SET_ENDPOINT_PRIME 0 x0d
#define DWC3_DGCMD_RUN_SOC_BUS_LOOPBACK 0 x10
#define DWC3_DGCMD_DEV_NOTIFICATION 0 x07
#define DWC3_DGCMD_STATUS(n) (((n) >> 12 ) & 0 x0F)
#define DWC3_DGCMD_CMDACT BIT(10 )
#define DWC3_DGCMD_CMDIOC BIT(8 )
/* Device Generic Command Parameter Register */
#define DWC3_DGCMDPAR_FORCE_LINKPM_ACCEPT BIT(0 )
#define DWC3_DGCMDPAR_FIFO_NUM(n) ((n) << 0 )
#define DWC3_DGCMDPAR_RX_FIFO (0 << 5 )
#define DWC3_DGCMDPAR_TX_FIFO BIT(5 )
#define DWC3_DGCMDPAR_LOOPBACK_DIS (0 << 0 )
#define DWC3_DGCMDPAR_LOOPBACK_ENA BIT(0 )
#define DWC3_DGCMDPAR_DN_FUNC_WAKE BIT(0 )
#define DWC3_DGCMDPAR_INTF_SEL(n) ((n) << 4 )
/* Device Endpoint Command Register */
#define DWC3_DEPCMD_PARAM_SHIFT 16
#define DWC3_DEPCMD_PARAM(x) ((x) << DWC3_DEPCMD_PARAM_SHIFT)
#define DWC3_DEPCMD_GET_RSC_IDX(x) (((x) >> DWC3_DEPCMD_PARAM_SHIFT) & 0 x7f)
#define DWC3_DEPCMD_STATUS(x) (((x) >> 12 ) & 0 x0F)
#define DWC3_DEPCMD_HIPRI_FORCERM BIT(11 )
#define DWC3_DEPCMD_CLEARPENDIN BIT(11 )
#define DWC3_DEPCMD_CMDACT BIT(10 )
#define DWC3_DEPCMD_CMDIOC BIT(8 )
#define DWC3_DEPCMD_DEPSTARTCFG (0 x09 << 0 )
#define DWC3_DEPCMD_ENDTRANSFER (0 x08 << 0 )
#define DWC3_DEPCMD_UPDATETRANSFER (0 x07 << 0 )
#define DWC3_DEPCMD_STARTTRANSFER (0 x06 << 0 )
#define DWC3_DEPCMD_CLEARSTALL (0 x05 << 0 )
#define DWC3_DEPCMD_SETSTALL (0 x04 << 0 )
/* This applies for core versions 1.90a and earlier */
#define DWC3_DEPCMD_GETSEQNUMBER (0 x03 << 0 )
/* This applies for core versions 1.94a and later */
#define DWC3_DEPCMD_GETEPSTATE (0 x03 << 0 )
#define DWC3_DEPCMD_SETTRANSFRESOURCE (0 x02 << 0 )
#define DWC3_DEPCMD_SETEPCONFIG (0 x01 << 0 )
#define DWC3_DEPCMD_CMD(x) ((x) & 0 xf)
/* The EP number goes 0..31 so ep0 is always out and ep1 is always in */
#define DWC3_DALEPENA_EP(n) BIT(n)
/* DWC_usb32 DCFG1 config */
#define DWC3_DCFG1_DIS_MST_ENH BIT(1 )
#define DWC3_DEPCMD_TYPE_CONTROL 0
#define DWC3_DEPCMD_TYPE_ISOC 1
#define DWC3_DEPCMD_TYPE_BULK 2
#define DWC3_DEPCMD_TYPE_INTR 3
#define DWC3_DEV_IMOD_COUNT_SHIFT 16
#define DWC3_DEV_IMOD_COUNT_MASK (0 xffff << 16 )
#define DWC3_DEV_IMOD_INTERVAL_SHIFT 0
#define DWC3_DEV_IMOD_INTERVAL_MASK (0 xffff << 0 )
/* OTG Configuration Register */
#define DWC3_OCFG_DISPWRCUTTOFF BIT(5 )
#define DWC3_OCFG_HIBDISMASK BIT(4 )
#define DWC3_OCFG_SFTRSTMASK BIT(3 )
#define DWC3_OCFG_OTGVERSION BIT(2 )
#define DWC3_OCFG_HNPCAP BIT(1 )
#define DWC3_OCFG_SRPCAP BIT(0 )
/* OTG CTL Register */
#define DWC3_OCTL_OTG3GOERR BIT(7 )
#define DWC3_OCTL_PERIMODE BIT(6 )
#define DWC3_OCTL_PRTPWRCTL BIT(5 )
#define DWC3_OCTL_HNPREQ BIT(4 )
#define DWC3_OCTL_SESREQ BIT(3 )
#define DWC3_OCTL_TERMSELIDPULSE BIT(2 )
#define DWC3_OCTL_DEVSETHNPEN BIT(1 )
#define DWC3_OCTL_HSTSETHNPEN BIT(0 )
/* OTG Event Register */
#define DWC3_OEVT_DEVICEMODE BIT(31 )
#define DWC3_OEVT_XHCIRUNSTPSET BIT(27 )
#define DWC3_OEVT_DEVRUNSTPSET BIT(26 )
#define DWC3_OEVT_HIBENTRY BIT(25 )
#define DWC3_OEVT_CONIDSTSCHNG BIT(24 )
#define DWC3_OEVT_HRRCONFNOTIF BIT(23 )
#define DWC3_OEVT_HRRINITNOTIF BIT(22 )
#define DWC3_OEVT_ADEVIDLE BIT(21 )
#define DWC3_OEVT_ADEVBHOSTEND BIT(20 )
#define DWC3_OEVT_ADEVHOST BIT(19 )
#define DWC3_OEVT_ADEVHNPCHNG BIT(18 )
#define DWC3_OEVT_ADEVSRPDET BIT(17 )
#define DWC3_OEVT_ADEVSESSENDDET BIT(16 )
#define DWC3_OEVT_BDEVBHOSTEND BIT(11 )
#define DWC3_OEVT_BDEVHNPCHNG BIT(10 )
#define DWC3_OEVT_BDEVSESSVLDDET BIT(9 )
#define DWC3_OEVT_BDEVVBUSCHNG BIT(8 )
#define DWC3_OEVT_BSESSVLD BIT(3 )
#define DWC3_OEVT_HSTNEGSTS BIT(2 )
#define DWC3_OEVT_SESREQSTS BIT(1 )
#define DWC3_OEVT_ERROR BIT(0 )
/* OTG Event Enable Register */
#define DWC3_OEVTEN_XHCIRUNSTPSETEN BIT(27 )
#define DWC3_OEVTEN_DEVRUNSTPSETEN BIT(26 )
#define DWC3_OEVTEN_HIBENTRYEN BIT(25 )
#define DWC3_OEVTEN_CONIDSTSCHNGEN BIT(24 )
#define DWC3_OEVTEN_HRRCONFNOTIFEN BIT(23 )
#define DWC3_OEVTEN_HRRINITNOTIFEN BIT(22 )
#define DWC3_OEVTEN_ADEVIDLEEN BIT(21 )
#define DWC3_OEVTEN_ADEVBHOSTENDEN BIT(20 )
#define DWC3_OEVTEN_ADEVHOSTEN BIT(19 )
#define DWC3_OEVTEN_ADEVHNPCHNGEN BIT(18 )
#define DWC3_OEVTEN_ADEVSRPDETEN BIT(17 )
#define DWC3_OEVTEN_ADEVSESSENDDETEN BIT(16 )
#define DWC3_OEVTEN_BDEVBHOSTENDEN BIT(11 )
#define DWC3_OEVTEN_BDEVHNPCHNGEN BIT(10 )
#define DWC3_OEVTEN_BDEVSESSVLDDETEN BIT(9 )
#define DWC3_OEVTEN_BDEVVBUSCHNGEN BIT(8 )
/* OTG Status Register */
#define DWC3_OSTS_DEVRUNSTP BIT(13 )
#define DWC3_OSTS_XHCIRUNSTP BIT(12 )
#define DWC3_OSTS_PERIPHERALSTATE BIT(4 )
#define DWC3_OSTS_XHCIPRTPOWER BIT(3 )
#define DWC3_OSTS_BSESVLD BIT(2 )
#define DWC3_OSTS_VBUSVLD BIT(1 )
#define DWC3_OSTS_CONIDSTS BIT(0 )
/* Force Gen1 speed on Gen2 link */
#define DWC3_LLUCTL_FORCE_GEN1 BIT(10 )
/* Structures */
struct dwc3_trb;
/**
* struct dwc3_event_buffer - Software event buffer representation
* @ buf : _ THE_ buffer
* @ cache : The buffer cache used in the threaded interrupt
* @ length : size of this buffer
* @ lpos : event offset
* @ count : cache of last read event count register
* @ flags : flags related to this event buffer
* @ dma : dma_addr_t
* @ dwc : pointer to DWC controller
*/
struct dwc3_event_buffer {
void *buf;
void *cache;
unsigned int length;
unsigned int lpos;
unsigned int count;
unsigned int flags;
#define DWC3_EVENT_PENDING BIT(0 )
dma_addr_t dma;
struct dwc3 *dwc;
};
#define DWC3_EP_FLAG_STALLED BIT(0 )
#define DWC3_EP_FLAG_WEDGED BIT(1 )
#define DWC3_EP_DIRECTION_TX true
#define DWC3_EP_DIRECTION_RX false
#define DWC3_TRB_NUM 256
/**
* struct dwc3_ep - device side endpoint representation
* @ endpoint : usb endpoint
* @ nostream_work : work for handling bulk NoStream
* @ cancelled_list : list of cancelled requests for this endpoint
* @ pending_list : list of pending requests for this endpoint
* @ started_list : list of started requests on this endpoint
* @ regs : pointer to first endpoint register
* @ trb_pool : array of transaction buffers
* @ trb_pool_dma : dma address of @ trb_pool
* @ trb_enqueue : enqueue ' pointer ' into TRB array
* @ trb_dequeue : dequeue ' pointer ' into TRB array
* @ dwc : pointer to DWC controller
* @ saved_state : ep state saved during hibernation
* @ flags : endpoint flags ( wedged , stalled , . . . )
* @ number : endpoint number ( 1 - 15 )
* @ type : set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK
* @ resource_index : Resource transfer index
* @ frame_number : set to the frame number we want this transfer to start ( ISOC )
* @ interval : the interval on which the ISOC transfer is started
* @ name : a human readable name e . g . ep1out - bulk
* @ direction : true for TX , false for RX
* @ stream_capable : true when streams are enabled
* @ combo_num : the test combination BIT [ 15 : 14 ] of the frame number to test
* isochronous START TRANSFER command failure workaround
* @ start_cmd_status : the status of testing START TRANSFER command with
* combo_num = ' b00
*/
struct dwc3_ep {
struct usb_ep endpoint;
struct delayed_work nostream_work;
struct list_head cancelled_list;
struct list_head pending_list;
struct list_head started_list;
void __iomem *regs;
struct dwc3_trb *trb_pool;
dma_addr_t trb_pool_dma;
struct dwc3 *dwc;
u32 saved_state;
unsigned int flags;
#define DWC3_EP_ENABLED BIT(0 )
#define DWC3_EP_STALL BIT(1 )
#define DWC3_EP_WEDGE BIT(2 )
#define DWC3_EP_TRANSFER_STARTED BIT(3 )
#define DWC3_EP_END_TRANSFER_PENDING BIT(4 )
#define DWC3_EP_PENDING_REQUEST BIT(5 )
#define DWC3_EP_DELAY_START BIT(6 )
#define DWC3_EP_WAIT_TRANSFER_COMPLETE BIT(7 )
#define DWC3_EP_IGNORE_NEXT_NOSTREAM BIT(8 )
#define DWC3_EP_FORCE_RESTART_STREAM BIT(9 )
#define DWC3_EP_STREAM_PRIMED BIT(10 )
#define DWC3_EP_PENDING_CLEAR_STALL BIT(11 )
#define DWC3_EP_TXFIFO_RESIZED BIT(12 )
#define DWC3_EP_DELAY_STOP BIT(13 )
#define DWC3_EP_RESOURCE_ALLOCATED BIT(14 )
/* This last one is specific to EP0 */
#define DWC3_EP0_DIR_IN BIT(31 )
/*
* IMPORTANT : we * know * we have 256 TRBs in our @ trb_pool , so we will
* use a u8 type here . If anybody decides to increase number of TRBs to
* anything larger than 256 - I can ' t see why people would want to do
* this though - then this type needs to be changed .
*
* By using u8 types we ensure that our % operator when incrementing
* enqueue and dequeue get optimized away by the compiler .
*/
u8 trb_enqueue;
u8 trb_dequeue;
u8 number;
u8 type;
u8 resource_index;
u32 frame_number;
u32 interval;
char name[20 ];
unsigned direction:1 ;
unsigned stream_capable:1 ;
/* For isochronous START TRANSFER workaround only */
u8 combo_num;
int start_cmd_status;
};
enum dwc3_phy {
DWC3_PHY_UNKNOWN = 0 ,
DWC3_PHY_USB3,
DWC3_PHY_USB2,
};
enum dwc3_ep0_next {
DWC3_EP0_UNKNOWN = 0 ,
DWC3_EP0_COMPLETE,
DWC3_EP0_NRDY_DATA,
DWC3_EP0_NRDY_STATUS,
};
enum dwc3_ep0_state {
EP0_UNCONNECTED = 0 ,
EP0_SETUP_PHASE,
EP0_DATA_PHASE,
EP0_STATUS_PHASE,
};
enum dwc3_link_state {
/* In SuperSpeed */
DWC3_LINK_STATE_U0 = 0 x00, /* in HS, means ON */
DWC3_LINK_STATE_U1 = 0 x01,
DWC3_LINK_STATE_U2 = 0 x02, /* in HS, means SLEEP */
DWC3_LINK_STATE_U3 = 0 x03, /* in HS, means SUSPEND */
DWC3_LINK_STATE_SS_DIS = 0 x04,
DWC3_LINK_STATE_RX_DET = 0 x05, /* in HS, means Early Suspend */
DWC3_LINK_STATE_SS_INACT = 0 x06,
DWC3_LINK_STATE_POLL = 0 x07,
DWC3_LINK_STATE_RECOV = 0 x08,
DWC3_LINK_STATE_HRESET = 0 x09,
DWC3_LINK_STATE_CMPLY = 0 x0a,
DWC3_LINK_STATE_LPBK = 0 x0b,
DWC3_LINK_STATE_RESET = 0 x0e,
DWC3_LINK_STATE_RESUME = 0 x0f,
DWC3_LINK_STATE_MASK = 0 x0f,
};
/* TRB Length, PCM and Status */
#define DWC3_TRB_SIZE_MASK (0 x00ffffff)
#define DWC3_TRB_SIZE_LENGTH(n) ((n) & DWC3_TRB_SIZE_MASK)
#define DWC3_TRB_SIZE_PCM1(n) (((n) & 0 x03) << 24 )
#define DWC3_TRB_SIZE_TRBSTS(n) (((n) & (0 x0f << 28 )) >> 28 )
#define DWC3_TRBSTS_OK 0
#define DWC3_TRBSTS_MISSED_ISOC 1
#define DWC3_TRBSTS_SETUP_PENDING 2
#define DWC3_TRB_STS_XFER_IN_PROG 4
/* TRB Control */
#define DWC3_TRB_CTRL_HWO BIT(0 )
#define DWC3_TRB_CTRL_LST BIT(1 )
#define DWC3_TRB_CTRL_CHN BIT(2 )
#define DWC3_TRB_CTRL_CSP BIT(3 )
#define DWC3_TRB_CTRL_TRBCTL(n) (((n) & 0 x3f) << 4 )
#define DWC3_TRB_CTRL_ISP_IMI BIT(10 )
#define DWC3_TRB_CTRL_IOC BIT(11 )
#define DWC3_TRB_CTRL_SID_SOFN(n) (((n) & 0 xffff) << 14 )
#define DWC3_TRB_CTRL_GET_SID_SOFN(n) (((n) & (0 xffff << 14 )) >> 14 )
#define DWC3_TRBCTL_TYPE(n) ((n) & (0 x3f << 4 ))
#define DWC3_TRBCTL_NORMAL DWC3_TRB_CTRL_TRBCTL(1 )
#define DWC3_TRBCTL_CONTROL_SETUP DWC3_TRB_CTRL_TRBCTL(2 )
#define DWC3_TRBCTL_CONTROL_STATUS2 DWC3_TRB_CTRL_TRBCTL(3 )
#define DWC3_TRBCTL_CONTROL_STATUS3 DWC3_TRB_CTRL_TRBCTL(4 )
#define DWC3_TRBCTL_CONTROL_DATA DWC3_TRB_CTRL_TRBCTL(5 )
#define DWC3_TRBCTL_ISOCHRONOUS_FIRST DWC3_TRB_CTRL_TRBCTL(6 )
#define DWC3_TRBCTL_ISOCHRONOUS DWC3_TRB_CTRL_TRBCTL(7 )
#define DWC3_TRBCTL_LINK_TRB DWC3_TRB_CTRL_TRBCTL(8 )
/**
* struct dwc3_trb - transfer request block ( hw format )
* @ bpl : DW0 - 3
* @ bph : DW4 - 7
* @ size : DW8 - B
* @ ctrl : DWC - F
*/
struct dwc3_trb {
u32 bpl;
u32 bph;
u32 size;
u32 ctrl;
} __packed;
/**
* struct dwc3_hwparams - copy of HWPARAMS registers
* @ hwparams0 : GHWPARAMS0
* @ hwparams1 : GHWPARAMS1
* @ hwparams2 : GHWPARAMS2
* @ hwparams3 : GHWPARAMS3
* @ hwparams4 : GHWPARAMS4
* @ hwparams5 : GHWPARAMS5
* @ hwparams6 : GHWPARAMS6
* @ hwparams7 : GHWPARAMS7
* @ hwparams8 : GHWPARAMS8
* @ hwparams9 : GHWPARAMS9
*/
struct dwc3_hwparams {
u32 hwparams0;
u32 hwparams1;
u32 hwparams2;
u32 hwparams3;
u32 hwparams4;
u32 hwparams5;
u32 hwparams6;
u32 hwparams7;
u32 hwparams8;
u32 hwparams9;
};
/* HWPARAMS0 */
#define DWC3_MODE(n) ((n) & 0 x7)
/* HWPARAMS1 */
#define DWC3_SPRAM_TYPE(n) (((n) >> 23 ) & 1 )
#define DWC3_NUM_INT(n) (((n) & (0 x3f << 15 )) >> 15 )
/* HWPARAMS3 */
#define DWC3_NUM_IN_EPS_MASK (0 x1f << 18 )
#define DWC3_NUM_EPS_MASK (0 x3f << 12 )
#define DWC3_NUM_EPS(p) (((p)->hwparams3 & \
(DWC3_NUM_EPS_MASK)) >> 12 )
#define DWC3_NUM_IN_EPS(p) (((p)->hwparams3 & \
(DWC3_NUM_IN_EPS_MASK)) >> 18 )
/* HWPARAMS6 */
#define DWC3_RAM0_DEPTH(n) (((n) & (0 xffff0000)) >> 16 )
/* HWPARAMS7 */
#define DWC3_RAM1_DEPTH(n) ((n) & 0 xffff)
/* HWPARAMS9 */
#define DWC3_MST_CAPABLE(p) (!!((p)->hwparams9 & \
DWC3_GHWPARAMS9_DEV_MST))
/**
* struct dwc3_request - representation of a transfer request
* @ request : struct usb_request to be transferred
* @ list : a list_head used for request queueing
* @ dep : struct dwc3_ep owning this request
* @ start_sg : pointer to the sg which should be queued next
* @ num_pending_sgs : counter to pending sgs
* @ remaining : amount of data remaining
* @ status : internal dwc3 request status tracking
* @ epnum : endpoint number to which this request refers
* @ trb : pointer to struct dwc3_trb
* @ trb_dma : DMA address of @ trb
* @ num_trbs : number of TRBs used by this request
* @ direction : IN or OUT direction flag
* @ mapped : true when request has been dma - mapped
*/
struct dwc3_request {
struct usb_request request;
struct list_head list;
struct dwc3_ep *dep;
struct scatterlist *start_sg;
unsigned int num_pending_sgs;
unsigned int remaining;
unsigned int status;
#define DWC3_REQUEST_STATUS_QUEUED 0
#define DWC3_REQUEST_STATUS_STARTED 1
#define DWC3_REQUEST_STATUS_DISCONNECTED 2
#define DWC3_REQUEST_STATUS_DEQUEUED 3
#define DWC3_REQUEST_STATUS_STALLED 4
#define DWC3_REQUEST_STATUS_COMPLETED 5
#define DWC3_REQUEST_STATUS_UNKNOWN -1
u8 epnum;
struct dwc3_trb *trb;
dma_addr_t trb_dma;
unsigned int num_trbs;
unsigned int direction:1 ;
unsigned int mapped:1 ;
};
/*
* struct dwc3_scratchpad_array - hibernation scratchpad array
* ( format defined by hw )
*/
struct dwc3_scratchpad_array {
__le64 dma_adr[DWC3_MAX_HIBER_SCRATCHBUFS];
};
/**
* struct dwc3 - representation of our controller
* @ drd_work : workqueue used for role swapping
* @ ep0_trb : trb which is used for the ctrl_req
* @ bounce : address of bounce buffer
* @ setup_buf : used while precessing STD USB requests
* @ ep0_trb_addr : dma address of @ ep0_trb
* @ bounce_addr : dma address of @ bounce
* @ ep0_usb_req : dummy req used while handling STD USB requests
* @ ep0_in_setup : one control transfer is completed and enter setup phase
* @ lock : for synchronizing
* @ mutex : for mode switching
* @ dev : pointer to our struct device
* @ sysdev : pointer to the DMA - capable device
* @ xhci : pointer to our xHCI child
* @ xhci_resources : struct resources for our @ xhci child
* @ ev_buf : struct dwc3_event_buffer pointer
* @ eps : endpoint array
* @ gadget : device side representation of the peripheral controller
* @ gadget_driver : pointer to the gadget driver
* @ bus_clk : clock for accessing the registers
* @ ref_clk : reference clock
* @ susp_clk : clock used when the SS phy is in low power ( S3 ) state
* @ utmi_clk : clock used for USB2 PHY communication
* @ pipe_clk : clock used for USB3 PHY communication
* @ reset : reset control
* @ regs : base address for our registers
* @ regs_size : address space size
* @ fladj : frame length adjustment
* @ ref_clk_per : reference clock period configuration
* @ irq_gadget : peripheral controller ' s IRQ number
* @ otg_irq : IRQ number for OTG IRQs
* @ current_otg_role : current role of operation while using the OTG block
* @ desired_otg_role : desired role of operation while using the OTG block
* @ otg_restart_host : flag that OTG controller needs to restart host
* @ u1u2 : only used on revisions < 1 . 83 a for workaround
* @ maximum_speed : maximum speed requested ( mainly for testing purposes )
* @ max_ssp_rate : SuperSpeed Plus maximum signaling rate and lane count
* @ gadget_max_speed : maximum gadget speed requested
* @ gadget_ssp_rate : Gadget driver ' s maximum supported SuperSpeed Plus signaling
* rate and lane count .
* @ ip : controller ' s ID
* @ revision : controller ' s version of an IP
* @ version_type : VERSIONTYPE register contents , a sub release of a revision
* @ dr_mode : requested mode of operation
* @ current_dr_role : current role of operation when in dual - role mode
* @ desired_dr_role : desired role of operation when in dual - role mode
* @ edev : extcon handle
* @ edev_nb : extcon notifier
* @ hsphy_mode : UTMI phy mode , one of following :
* - USBPHY_INTERFACE_MODE_UTMI
* - USBPHY_INTERFACE_MODE_UTMIW
* @ role_sw : usb_role_switch handle
* @ role_switch_default_mode : default operation mode of controller while
* usb role is USB_ROLE_NONE .
* @ usb_psy : pointer to power supply interface .
* @ usb2_phy : pointer to USB2 PHY
* @ usb3_phy : pointer to USB3 PHY
* @ usb2_generic_phy : pointer to array of USB2 PHYs
* @ usb3_generic_phy : pointer to array of USB3 PHYs
* @ num_usb2_ports : number of USB2 ports
* @ num_usb3_ports : number of USB3 ports
* @ phys_ready : flag to indicate that PHYs are ready
* @ ulpi : pointer to ulpi interface
* @ ulpi_ready : flag to indicate that ULPI is initialized
* @ u2sel : parameter from Set SEL request .
* @ u2pel : parameter from Set SEL request .
* @ u1sel : parameter from Set SEL request .
* @ u1pel : parameter from Set SEL request .
* @ num_eps : number of endpoints
* @ ep0_next_event : hold the next expected event
* @ ep0state : state of endpoint zero
* @ link_state : link state
* @ speed : device speed ( super , high , full , low )
* @ hwparams : copy of hwparams registers
* @ regset : debugfs pointer to regdump file
* @ dbg_lsp_select : current debug lsp mux register selection
* @ test_mode : true when we ' re entering a USB test mode
* @ test_mode_nr : test feature selector
* @ lpm_nyet_threshold : LPM NYET response threshold
* @ hird_threshold : HIRD threshold
* @ rx_thr_num_pkt : USB receive packet count
* @ rx_max_burst : max USB receive burst size
* @ tx_thr_num_pkt : USB transmit packet count
* @ tx_max_burst : max USB transmit burst size
* @ rx_thr_num_pkt_prd : periodic ESS receive packet count
* @ rx_max_burst_prd : max periodic ESS receive burst size
* @ tx_thr_num_pkt_prd : periodic ESS transmit packet count
* @ tx_max_burst_prd : max periodic ESS transmit burst size
* @ tx_fifo_resize_max_num : max number of fifos allocated during txfifo resize
* @ clear_stall_protocol : endpoint number that requires a delayed status phase
* @ num_hc_interrupters : number of host controller interrupters
* @ hsphy_interface : " utmi " or " ulpi "
* @ connected : true when we ' re connected to a host , false otherwise
* @ softconnect : true when gadget connect is called , false when disconnect runs
* @ delayed_status : true when gadget driver asks for delayed status
* @ ep0_bounced : true when we used bounce buffer
* @ ep0_expect_in : true when we expect a DATA IN transfer
* @ sysdev_is_parent : true when dwc3 device has a parent driver
* @ has_lpm_erratum : true when core was configured with LPM Erratum . Note that
* there ' s now way for software to detect this in runtime .
* @ is_utmi_l1_suspend : the core asserts output signal
* 0 - utmi_sleep_n
* 1 - utmi_l1_suspend_n
* @ is_fpga : true when we are using the FPGA board
* @ pending_events : true when we have pending IRQs to be handled
* @ do_fifo_resize : true when txfifo resizing is enabled for dwc3 endpoints
* @ pullups_connected : true when Run / Stop bit is set
* @ setup_packet_pending : true when there ' s a Setup Packet in FIFO . Workaround
* @ three_stage_setup : set if we perform a three phase setup
* @ dis_start_transfer_quirk : set if start_transfer failure SW workaround is
* not needed for DWC_usb31 version 1 . 70 a - ea06 and below
* @ usb3_lpm_capable : set if hadrware supports Link Power Management
* @ usb2_lpm_disable : set to disable usb2 lpm for host
* @ usb2_gadget_lpm_disable : set to disable usb2 lpm for gadget
* @ disable_scramble_quirk : set if we enable the disable scramble quirk
* @ u2exit_lfps_quirk : set if we enable u2exit lfps quirk
* @ u2ss_inp3_quirk : set if we enable P3 OK for U2 / SS Inactive quirk
* @ req_p1p2p3_quirk : set if we enable request p1p2p3 quirk
* @ del_p1p2p3_quirk : set if we enable delay p1p2p3 quirk
* @ del_phy_power_chg_quirk : set if we enable delay phy power change quirk
* @ lfps_filter_quirk : set if we enable LFPS filter quirk
* @ rx_detect_poll_quirk : set if we enable rx_detect to polling lfps quirk
* @ dis_u3_susphy_quirk : set if we disable usb3 suspend phy
* @ dis_u2_susphy_quirk : set if we disable usb2 suspend phy
* @ dis_enblslpm_quirk : set if we clear enblslpm in GUSB2PHYCFG ,
* disabling the suspend signal to the PHY .
* @ dis_u1_entry_quirk : set if link entering into U1 state needs to be disabled .
* @ dis_u2_entry_quirk : set if link entering into U2 state needs to be disabled .
* @ dis_rxdet_inp3_quirk : set if we disable Rx . Detect in P3
* @ async_callbacks : if set , indicate that async callbacks will be used .
*
* @ dis_u2_freeclk_exists_quirk : set if we clear u2_freeclk_exists
* in GUSB2PHYCFG , specify that USB2 PHY doesn ' t
* provide a free - running PHY clock .
* @ dis_del_phy_power_chg_quirk : set if we disable delay phy power
* change quirk .
* @ dis_tx_ipgap_linecheck_quirk : set if we disable u2mac linestate
* check during HS transmit .
* @ resume_hs_terminations : Set if we enable quirk for fixing improper crc
* generation after resume from suspend .
* @ ulpi_ext_vbus_drv : Set to confiure the upli chip to drives CPEN pin
* VBUS with an external supply .
* @ parkmode_disable_ss_quirk : set if we need to disable all SuperSpeed
* instances in park mode .
* @ parkmode_disable_hs_quirk : set if we need to disable all HishSpeed
* instances in park mode .
* @ gfladj_refclk_lpm_sel : set if we need to enable SOF / ITP counter
* running based on ref_clk
* @ tx_de_emphasis_quirk : set if we enable Tx de - emphasis quirk
* @ tx_de_emphasis : Tx de - emphasis value
* 0 - - 6 dB de - emphasis
* 1 - - 3 . 5 dB de - emphasis
* 2 - No de - emphasis
* 3 - Reserved
* @ dis_metastability_quirk : set to disable metastability quirk .
* @ dis_split_quirk : set to disable split boundary .
* @ sys_wakeup : set if the device may do system wakeup .
* @ wakeup_configured : set if the device is configured for remote wakeup .
* @ suspended : set to track suspend event due to U3 / L2 .
* @ susphy_state : state of DWC3_GUSB2PHYCFG_SUSPHY + DWC3_GUSB3PIPECTL_SUSPHY
* before PM suspend .
* @ imod_interval : set the interrupt moderation interval in 250 ns
* increments or 0 to disable .
* @ max_cfg_eps : current max number of IN eps used across all USB configs .
* @ last_fifo_depth : last fifo depth used to determine next fifo ram start
* address .
* @ num_ep_resized : carries the current number endpoints which have had its tx
* fifo resized .
* @ debug_root : root debugfs directory for this device to put its files in .
* @ gsbuscfg0_reqinfo : store GSBUSCFG0 . DATRDREQINFO , DESRDREQINFO ,
* DATWRREQINFO , and DESWRREQINFO value passed from
* glue driver .
* @ wakeup_pending_funcs : Indicates whether any interface has requested for
* function wakeup in bitmap format where bit position
* represents interface_id .
*/
struct dwc3 {
struct work_struct drd_work;
struct dwc3_trb *ep0_trb;
void *bounce;
u8 *setup_buf;
dma_addr_t ep0_trb_addr;
dma_addr_t bounce_addr;
struct dwc3_request ep0_usb_req;
struct completion ep0_in_setup;
/* device lock */
spinlock_t lock;
/* mode switching lock */
struct mutex mutex;
struct device *dev;
struct device *sysdev;
struct platform_device *xhci;
struct resource xhci_resources[DWC3_XHCI_RESOURCES_NUM];
struct dwc3_event_buffer *ev_buf;
struct dwc3_ep *eps[DWC3_ENDPOINTS_NUM];
struct usb_gadget *gadget;
struct usb_gadget_driver *gadget_driver;
struct clk *bus_clk;
struct clk *ref_clk;
struct clk *susp_clk;
struct clk *utmi_clk;
struct clk *pipe_clk;
struct reset_control *reset;
struct usb_phy *usb2_phy;
struct usb_phy *usb3_phy;
struct phy *usb2_generic_phy[DWC3_USB2_MAX_PORTS];
struct phy *usb3_generic_phy[DWC3_USB3_MAX_PORTS];
u8 num_usb2_ports;
u8 num_usb3_ports;
bool phys_ready;
struct ulpi *ulpi;
bool ulpi_ready;
void __iomem *regs;
size_t regs_size;
enum usb_dr_mode dr_mode;
u32 current_dr_role;
u32 desired_dr_role;
struct extcon_dev *edev;
struct notifier_block edev_nb;
enum usb_phy_interface hsphy_mode;
struct usb_role_switch *role_sw;
enum usb_dr_mode role_switch_default_mode;
struct power_supply *usb_psy;
u32 fladj;
u32 ref_clk_per;
u32 irq_gadget;
u32 otg_irq;
u32 current_otg_role;
u32 desired_otg_role;
bool otg_restart_host;
u32 u1u2;
u32 maximum_speed;
u32 gadget_max_speed;
enum usb_ssp_rate max_ssp_rate;
enum usb_ssp_rate gadget_ssp_rate;
u32 ip;
#define DWC3_IP 0 x5533
#define DWC31_IP 0 x3331
#define DWC32_IP 0 x3332
u32 revision;
#define DWC3_REVISION_ANY 0 x0
#define DWC3_REVISION_173A 0 x5533173a
#define DWC3_REVISION_175A 0 x5533175a
#define DWC3_REVISION_180A 0 x5533180a
#define DWC3_REVISION_183A 0 x5533183a
#define DWC3_REVISION_185A 0 x5533185a
#define DWC3_REVISION_187A 0 x5533187a
#define DWC3_REVISION_188A 0 x5533188a
#define DWC3_REVISION_190A 0 x5533190a
#define DWC3_REVISION_194A 0 x5533194a
#define DWC3_REVISION_200A 0 x5533200a
#define DWC3_REVISION_202A 0 x5533202a
#define DWC3_REVISION_210A 0 x5533210a
#define DWC3_REVISION_220A 0 x5533220a
#define DWC3_REVISION_230A 0 x5533230a
#define DWC3_REVISION_240A 0 x5533240a
#define DWC3_REVISION_250A 0 x5533250a
#define DWC3_REVISION_260A 0 x5533260a
#define DWC3_REVISION_270A 0 x5533270a
#define DWC3_REVISION_280A 0 x5533280a
#define DWC3_REVISION_290A 0 x5533290a
#define DWC3_REVISION_300A 0 x5533300a
#define DWC3_REVISION_310A 0 x5533310a
#define DWC3_REVISION_320A 0 x5533320a
#define DWC3_REVISION_330A 0 x5533330a
#define DWC31_REVISION_ANY 0 x0
#define DWC31_REVISION_110A 0 x3131302a
#define DWC31_REVISION_120A 0 x3132302a
#define DWC31_REVISION_160A 0 x3136302a
#define DWC31_REVISION_170A 0 x3137302a
#define DWC31_REVISION_180A 0 x3138302a
#define DWC31_REVISION_190A 0 x3139302a
#define DWC31_REVISION_200A 0 x3230302a
#define DWC32_REVISION_ANY 0 x0
#define DWC32_REVISION_100A 0 x3130302a
u32 version_type;
#define DWC31_VERSIONTYPE_ANY 0 x0
#define DWC31_VERSIONTYPE_EA01 0 x65613031
#define DWC31_VERSIONTYPE_EA02 0 x65613032
#define DWC31_VERSIONTYPE_EA03 0 x65613033
#define DWC31_VERSIONTYPE_EA04 0 x65613034
#define DWC31_VERSIONTYPE_EA05 0 x65613035
#define DWC31_VERSIONTYPE_EA06 0 x65613036
enum dwc3_ep0_next ep0_next_event;
enum dwc3_ep0_state ep0state;
enum dwc3_link_state link_state;
u16 u2sel;
u16 u2pel;
u8 u1sel;
u8 u1pel;
u8 speed;
u8 num_eps;
struct dwc3_hwparams hwparams;
struct debugfs_regset32 *regset;
u32 dbg_lsp_select;
u8 test_mode;
u8 test_mode_nr;
u8 lpm_nyet_threshold;
u8 hird_threshold;
u8 rx_thr_num_pkt;
u8 rx_max_burst;
u8 tx_thr_num_pkt;
u8 tx_max_burst;
u8 rx_thr_num_pkt_prd;
u8 rx_max_burst_prd;
u8 tx_thr_num_pkt_prd;
u8 tx_max_burst_prd;
u8 tx_fifo_resize_max_num;
u8 clear_stall_protocol;
u16 num_hc_interrupters;
const char *hsphy_interface;
unsigned connected:1 ;
unsigned softconnect:1 ;
unsigned delayed_status:1 ;
unsigned ep0_bounced:1 ;
unsigned ep0_expect_in:1 ;
unsigned sysdev_is_parent:1 ;
unsigned has_lpm_erratum:1 ;
unsigned is_utmi_l1_suspend:1 ;
unsigned is_fpga:1 ;
unsigned pending_events:1 ;
unsigned do_fifo_resize:1 ;
unsigned pullups_connected:1 ;
unsigned setup_packet_pending:1 ;
unsigned three_stage_setup:1 ;
unsigned dis_start_transfer_quirk:1 ;
unsigned usb3_lpm_capable:1 ;
unsigned usb2_lpm_disable:1 ;
unsigned usb2_gadget_lpm_disable:1 ;
unsigned disable_scramble_quirk:1 ;
unsigned u2exit_lfps_quirk:1 ;
unsigned u2ss_inp3_quirk:1 ;
unsigned req_p1p2p3_quirk:1 ;
unsigned del_p1p2p3_quirk:1 ;
unsigned del_phy_power_chg_quirk:1 ;
unsigned lfps_filter_quirk:1 ;
unsigned rx_detect_poll_quirk:1 ;
unsigned dis_u3_susphy_quirk:1 ;
unsigned dis_u2_susphy_quirk:1 ;
unsigned dis_enblslpm_quirk:1 ;
unsigned dis_u1_entry_quirk:1 ;
unsigned dis_u2_entry_quirk:1 ;
unsigned dis_rxdet_inp3_quirk:1 ;
unsigned dis_u2_freeclk_exists_quirk:1 ;
unsigned dis_del_phy_power_chg_quirk:1 ;
unsigned dis_tx_ipgap_linecheck_quirk:1 ;
unsigned resume_hs_terminations:1 ;
unsigned ulpi_ext_vbus_drv:1 ;
unsigned parkmode_disable_ss_quirk:1 ;
unsigned parkmode_disable_hs_quirk:1 ;
unsigned gfladj_refclk_lpm_sel:1 ;
unsigned tx_de_emphasis_quirk:1 ;
unsigned tx_de_emphasis:2 ;
unsigned dis_metastability_quirk:1 ;
unsigned dis_split_quirk:1 ;
unsigned async_callbacks:1 ;
unsigned sys_wakeup:1 ;
unsigned wakeup_configured:1 ;
unsigned suspended:1 ;
unsigned susphy_state:1 ;
u16 imod_interval;
int max_cfg_eps;
int last_fifo_depth;
int num_ep_resized;
struct dentry *debug_root;
u32 gsbuscfg0_reqinfo;
u32 wakeup_pending_funcs;
};
#define INCRX_BURST_MODE 0
#define INCRX_UNDEF_LENGTH_BURST_MODE 1
#define work_to_dwc(w) (container_of((w), struct dwc3, drd_work))
/* -------------------------------------------------------------------------- */
struct dwc3_event_type {
u32 is_devspec:1 ;
u32 type:7 ;
u32 reserved8_31:24 ;
} __packed;
#define DWC3_DEPEVT_XFERCOMPLETE 0 x01
#define DWC3_DEPEVT_XFERINPROGRESS 0 x02
#define DWC3_DEPEVT_XFERNOTREADY 0 x03
#define DWC3_DEPEVT_RXTXFIFOEVT 0 x04
#define DWC3_DEPEVT_STREAMEVT 0 x06
#define DWC3_DEPEVT_EPCMDCMPLT 0 x07
/**
* struct dwc3_event_depevt - Device Endpoint Events
* @ one_bit : indicates this is an endpoint event ( not used )
* @ endpoint_number : number of the endpoint
* @ endpoint_event : The event we have :
* 0 x00 - Reserved
* 0 x01 - XferComplete
* 0 x02 - XferInProgress
* 0 x03 - XferNotReady
* 0 x04 - RxTxFifoEvt ( IN - > Underrun , OUT - > Overrun )
* 0 x05 - Reserved
* 0 x06 - StreamEvt
* 0 x07 - EPCmdCmplt
* @ reserved11_10 : Reserved , don ' t use .
* @ status : Indicates the status of the event . Refer to databook for
* more information .
* @ parameters : Parameters of the current event . Refer to databook for
* more information .
*/
struct dwc3_event_depevt {
u32 one_bit:1 ;
u32 endpoint_number:5 ;
u32 endpoint_event:4 ;
u32 reserved11_10:2 ;
u32 status:4 ;
/* Within XferNotReady */
#define DEPEVT_STATUS_TRANSFER_ACTIVE BIT(3 )
/* Within XferComplete or XferInProgress */
#define DEPEVT_STATUS_BUSERR BIT(0 )
#define DEPEVT_STATUS_SHORT BIT(1 )
#define DEPEVT_STATUS_IOC BIT(2 )
#define DEPEVT_STATUS_LST BIT(3 ) /* XferComplete */
#define DEPEVT_STATUS_MISSED_ISOC BIT(3 ) /* XferInProgress */
/* Stream event only */
#define DEPEVT_STREAMEVT_FOUND 1
#define DEPEVT_STREAMEVT_NOTFOUND 2
/* Stream event parameter */
#define DEPEVT_STREAM_PRIME 0 xfffe
#define DEPEVT_STREAM_NOSTREAM 0 x0
/* Control-only Status */
#define DEPEVT_STATUS_CONTROL_DATA 1
#define DEPEVT_STATUS_CONTROL_STATUS 2
#define DEPEVT_STATUS_CONTROL_PHASE(n) ((n) & 3 )
/* In response to Start Transfer */
#define DEPEVT_TRANSFER_NO_RESOURCE 1
#define DEPEVT_TRANSFER_BUS_EXPIRY 2
u32 parameters:16 ;
/* For Command Complete Events */
#define DEPEVT_PARAMETER_CMD(n) (((n) & (0 xf << 8 )) >> 8 )
} __packed;
/**
* struct dwc3_event_devt - Device Events
* @ one_bit : indicates this is a non - endpoint event ( not used )
* @ device_event : indicates it ' s a device event . Should read as 0 x00
* @ type : indicates the type of device event .
* 0 - DisconnEvt
* 1 - USBRst
* 2 - ConnectDone
* 3 - ULStChng
* 4 - WkUpEvt
* 5 - Reserved
* 6 - Suspend ( EOPF on revisions 2 . 10 a and prior )
* 7 - SOF
* 8 - Reserved
* 9 - ErrticErr
* 10 - CmdCmplt
* 11 - EvntOverflow
* 12 - VndrDevTstRcved
* @ reserved15_12 : Reserved , not used
* @ event_info : Information about this event
* @ reserved31_25 : Reserved , not used
*/
struct dwc3_event_devt {
u32 one_bit:1 ;
u32 device_event:7 ;
u32 type:4 ;
u32 reserved15_12:4 ;
u32 event_info:9 ;
u32 reserved31_25:7 ;
} __packed;
/**
* struct dwc3_event_gevt - Other Core Events
* @ one_bit : indicates this is a non - endpoint event ( not used )
* @ device_event : indicates it ' s ( 0 x03 ) Carkit or ( 0 x04 ) I2C event .
* @ phy_port_number : self - explanatory
* @ reserved31_12 : Reserved , not used .
*/
struct dwc3_event_gevt {
u32 one_bit:1 ;
u32 device_event:7 ;
u32 phy_port_number:4 ;
u32 reserved31_12:20 ;
} __packed;
/**
* union dwc3_event - representation of Event Buffer contents
* @ raw : raw 32 - bit event
* @ type : the type of the event
* @ depevt : Device Endpoint Event
* @ devt : Device Event
* @ gevt : Global Event
*/
union dwc3_event {
u32 raw;
struct dwc3_event_type type;
struct dwc3_event_depevt depevt;
struct dwc3_event_devt devt;
struct dwc3_event_gevt gevt;
};
/**
* struct dwc3_gadget_ep_cmd_params - representation of endpoint command
* parameters
* @ param2 : third parameter
* @ param1 : second parameter
* @ param0 : first parameter
*/
struct dwc3_gadget_ep_cmd_params {
u32 param2;
u32 param1;
u32 param0;
};
/*
* DWC3 Features to be used as Driver Data
*/
#define DWC3_HAS_PERIPHERAL BIT(0 )
#define DWC3_HAS_XHCI BIT(1 )
#define DWC3_HAS_OTG BIT(3 )
/* prototypes */
void dwc3_set_prtcap(struct dwc3 *dwc, u32 mode, bool ignore_susphy);
void dwc3_set_mode(struct dwc3 *dwc, u32 mode);
u32 dwc3_core_fifo_space(struct dwc3_ep *dep, u8 type);
#define DWC3_IP_IS(_ip) \
(dwc->ip == _ip## _IP)
#define DWC3_VER_IS(_ip, _ver) \
(DWC3_IP_IS(_ip) && dwc->revision == _ip## _REVISION_## _ver)
#define DWC3_VER_IS_PRIOR(_ip, _ver) \
(DWC3_IP_IS(_ip) && dwc->revision < _ip## _REVISION_## _ver)
#define DWC3_VER_IS_WITHIN(_ip, _from, _to) \
(DWC3_IP_IS(_ip) && \
dwc->revision >= _ip## _REVISION_## _from && \
(!(_ip## _REVISION_## _to) || \
dwc->revision <= _ip## _REVISION_## _to))
#define DWC3_VER_TYPE_IS_WITHIN(_ip, _ver, _from, _to) \
(DWC3_VER_IS(_ip, _ver) && \
dwc->version_type >= _ip## _VERSIONTYPE_## _from && \
(!(_ip## _VERSIONTYPE_## _to) || \
dwc->version_type <= _ip## _VERSIONTYPE_## _to))
/**
* dwc3_mdwidth - get MDWIDTH value in bits
* @ dwc : pointer to our context structure
*
* Return MDWIDTH configuration value in bits .
*/
static inline u32 dwc3_mdwidth(struct dwc3 *dwc)
{
u32 mdwidth;
mdwidth = DWC3_GHWPARAMS0_MDWIDTH(dwc->hwparams.hwparams0);
if (DWC3_IP_IS(DWC32))
mdwidth += DWC3_GHWPARAMS6_MDWIDTH(dwc->hwparams.hwparams6);
return mdwidth;
}
bool dwc3_has_imod(struct dwc3 *dwc);
int dwc3_event_buffers_setup(struct dwc3 *dwc);
void dwc3_event_buffers_cleanup(struct dwc3 *dwc);
int dwc3_core_soft_reset(struct dwc3 *dwc);
void dwc3_enable_susphy(struct dwc3 *dwc, bool enable);
#if IS_ENABLED(CONFIG_USB_DWC3_HOST) || IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)
int dwc3_host_init(struct dwc3 *dwc);
void dwc3_host_exit(struct dwc3 *dwc);
#else
static inline int dwc3_host_init(struct dwc3 *dwc)
{ return 0 ; }
static inline void dwc3_host_exit(struct dwc3 *dwc)
{ }
#endif
#if IS_ENABLED(CONFIG_USB_DWC3_GADGET) || IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)
int dwc3_gadget_init(struct dwc3 *dwc);
void dwc3_gadget_exit(struct dwc3 *dwc);
int dwc3_gadget_set_test_mode(struct dwc3 *dwc, int mode);
int dwc3_gadget_get_link_state(struct dwc3 *dwc);
int dwc3_gadget_set_link_state(struct dwc3 *dwc, enum dwc3_link_state state);
int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned int cmd,
struct dwc3_gadget_ep_cmd_params *params);
int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned int cmd,
u32 param);
void dwc3_gadget_clear_tx_fifos(struct dwc3 *dwc);
void dwc3_remove_requests(struct dwc3 *dwc, struct dwc3_ep *dep, int status);
#else
static inline int dwc3_gadget_init(struct dwc3 *dwc)
{ return 0 ; }
static inline void dwc3_gadget_exit(struct dwc3 *dwc)
{ }
static inline int dwc3_gadget_set_test_mode(struct dwc3 *dwc, int mode)
{ return 0 ; }
static inline int dwc3_gadget_get_link_state(struct dwc3 *dwc)
{ return 0 ; }
static inline int dwc3_gadget_set_link_state(struct dwc3 *dwc,
enum dwc3_link_state state)
{ return 0 ; }
static inline int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned int cmd,
struct dwc3_gadget_ep_cmd_params *params)
{ return 0 ; }
static inline int dwc3_send_gadget_generic_command(struct dwc3 *dwc,
int cmd, u32 param)
{ return 0 ; }
static inline void dwc3_gadget_clear_tx_fifos(struct dwc3 *dwc)
{ }
#endif
#if IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)
int dwc3_drd_init(struct dwc3 *dwc);
void dwc3_drd_exit(struct dwc3 *dwc);
void dwc3_otg_init(struct dwc3 *dwc);
void dwc3_otg_exit(struct dwc3 *dwc);
void dwc3_otg_update(struct dwc3 *dwc, bool ignore_idstatus);
void dwc3_otg_host_init(struct dwc3 *dwc);
#else
static inline int dwc3_drd_init(struct dwc3 *dwc)
{ return 0 ; }
static inline void dwc3_drd_exit(struct dwc3 *dwc)
{ }
static inline void dwc3_otg_init(struct dwc3 *dwc)
{ }
static inline void dwc3_otg_exit(struct dwc3 *dwc)
{ }
static inline void dwc3_otg_update(struct dwc3 *dwc, bool ignore_idstatus)
{ }
static inline void dwc3_otg_host_init(struct dwc3 *dwc)
{ }
#endif
/* power management interface */
#if !IS_ENABLED(CONFIG_USB_DWC3_HOST)
int dwc3_gadget_suspend(struct dwc3 *dwc);
int dwc3_gadget_resume(struct dwc3 *dwc);
#else
static inline int dwc3_gadget_suspend(struct dwc3 *dwc)
{
return 0 ;
}
static inline int dwc3_gadget_resume(struct dwc3 *dwc)
{
return 0 ;
}
#endif /* !IS_ENABLED(CONFIG_USB_DWC3_HOST) */
#if IS_ENABLED(CONFIG_USB_DWC3_ULPI)
int dwc3_ulpi_init(struct dwc3 *dwc);
void dwc3_ulpi_exit(struct dwc3 *dwc);
#else
static inline int dwc3_ulpi_init(struct dwc3 *dwc)
{ return 0 ; }
static inline void dwc3_ulpi_exit(struct dwc3 *dwc)
{ }
#endif
#endif /* __DRIVERS_USB_DWC3_CORE_H */
Messung V0.5 in Prozent C=93 H=100 G=96
¤ Dauer der Verarbeitung: 0.44 Sekunden
(vorverarbeitet am 2026-09-27)
¤
*© Formatika GbR, Deutschland
2026-10-11
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