Quelle cdns3-gadget.h
Sprache: C
/* SPDX-License-Identifier: GPL-2.0 */
/*
* USBSS device controller driver header file
*
* Copyright ( C ) 2018 - 2019 Cadence .
* Copyright ( C ) 2017 - 2018 NXP
*
* Author : Pawel Laszczak < pawell @ cadence . com >
* Pawel Jez < pjez @ cadence . com >
* Peter Chen < peter . chen @ nxp . com >
*/
#ifndef __LINUX_CDNS3_GADGET
#define __LINUX_CDNS3_GADGET
#include <linux/usb/gadget.h>
#include <linux/dma-direction.h>
/*
* USBSS - DEV register interface .
* This corresponds to the USBSS Device Controller Interface
*/
/**
* struct cdns3_usb_regs - device controller registers .
* @ usb_conf : Global Configuration .
* @ usb_sts : Global Status .
* @ usb_cmd : Global Command .
* @ usb_itpn : ITP / SOF number .
* @ usb_lpm : Global Command .
* @ usb_ien : USB Interrupt Enable .
* @ usb_ists : USB Interrupt Status .
* @ ep_sel : Endpoint Select .
* @ ep_traddr : Endpoint Transfer Ring Address .
* @ ep_cfg : Endpoint Configuration .
* @ ep_cmd : Endpoint Command .
* @ ep_sts : Endpoint Status .
* @ ep_sts_sid : Endpoint Status .
* @ ep_sts_en : Endpoint Status Enable .
* @ drbl : Doorbell .
* @ ep_ien : EP Interrupt Enable .
* @ ep_ists : EP Interrupt Status .
* @ usb_pwr : Global Power Configuration .
* @ usb_conf2 : Global Configuration 2 .
* @ usb_cap1 : Capability 1 .
* @ usb_cap2 : Capability 2 .
* @ usb_cap3 : Capability 3 .
* @ usb_cap4 : Capability 4 .
* @ usb_cap5 : Capability 5 .
* @ usb_cap6 : Capability 6 .
* @ usb_cpkt1 : Custom Packet 1 .
* @ usb_cpkt2 : Custom Packet 2 .
* @ usb_cpkt3 : Custom Packet 3 .
* @ ep_dma_ext_addr : Upper address for DMA operations .
* @ buf_addr : Address for On - chip Buffer operations .
* @ buf_data : Data for On - chip Buffer operations .
* @ buf_ctrl : On - chip Buffer Access Control .
* @ dtrans : DMA Transfer Mode .
* @ tdl_from_trb : Source of TD Configuration .
* @ tdl_beh : TDL Behavior Configuration .
* @ ep_tdl : Endpoint TDL .
* @ tdl_beh2 : TDL Behavior 2 Configuration .
* @ dma_adv_td : DMA Advance TD Configuration .
* @ reserved1 : Reserved .
* @ cfg_regs : Configuration .
* @ reserved2 : Reserved .
* @ dma_axi_ctrl : AXI Control .
* @ dma_axi_id : AXI ID register .
* @ dma_axi_cap : AXI Capability .
* @ dma_axi_ctrl0 : AXI Control 0 .
* @ dma_axi_ctrl1 : AXI Control 1 .
*/
struct cdns3_usb_regs {
__le32 usb_conf;
__le32 usb_sts;
__le32 usb_cmd;
__le32 usb_itpn;
__le32 usb_lpm;
__le32 usb_ien;
__le32 usb_ists;
__le32 ep_sel;
__le32 ep_traddr;
__le32 ep_cfg;
__le32 ep_cmd;
__le32 ep_sts;
__le32 ep_sts_sid;
__le32 ep_sts_en;
__le32 drbl;
__le32 ep_ien;
__le32 ep_ists;
__le32 usb_pwr;
__le32 usb_conf2;
__le32 usb_cap1;
__le32 usb_cap2;
__le32 usb_cap3;
__le32 usb_cap4;
__le32 usb_cap5;
__le32 usb_cap6;
__le32 usb_cpkt1;
__le32 usb_cpkt2;
__le32 usb_cpkt3;
__le32 ep_dma_ext_addr;
__le32 buf_addr;
__le32 buf_data;
__le32 buf_ctrl;
__le32 dtrans;
__le32 tdl_from_trb;
__le32 tdl_beh;
__le32 ep_tdl;
__le32 tdl_beh2;
__le32 dma_adv_td;
__le32 reserved1[26 ];
__le32 cfg_reg1;
__le32 dbg_link1;
__le32 dbg_link2;
__le32 cfg_regs[74 ];
__le32 reserved2[51 ];
__le32 dma_axi_ctrl;
__le32 dma_axi_id;
__le32 dma_axi_cap;
__le32 dma_axi_ctrl0;
__le32 dma_axi_ctrl1;
};
/* USB_CONF - bitmasks */
/* Reset USB device configuration. */
#define USB_CONF_CFGRST BIT(0 )
/* Set Configuration. */
#define USB_CONF_CFGSET BIT(1 )
/* Disconnect USB device in SuperSpeed. */
#define USB_CONF_USB3DIS BIT(3 )
/* Disconnect USB device in HS/FS */
#define USB_CONF_USB2DIS BIT(4 )
/* Little Endian access - default */
#define USB_CONF_LENDIAN BIT(5 )
/*
* Big Endian access . Driver assume that byte order for
* SFRs access always is as Little Endian so this bit
* is not used .
*/
#define USB_CONF_BENDIAN BIT(6 )
/* Device software reset. */
#define USB_CONF_SWRST BIT(7 )
/* Singular DMA transfer mode. Only for VER < DEV_VER_V3*/
#define USB_CONF_DSING BIT(8 )
/* Multiple DMA transfers mode. Only for VER < DEV_VER_V3 */
#define USB_CONF_DMULT BIT(9 )
/* DMA clock turn-off enable. */
#define USB_CONF_DMAOFFEN BIT(10 )
/* DMA clock turn-off disable. */
#define USB_CONF_DMAOFFDS BIT(11 )
/* Clear Force Full Speed. */
#define USB_CONF_CFORCE_FS BIT(12 )
/* Set Force Full Speed. */
#define USB_CONF_SFORCE_FS BIT(13 )
/* Device enable. */
#define USB_CONF_DEVEN BIT(14 )
/* Device disable. */
#define USB_CONF_DEVDS BIT(15 )
/* L1 LPM state entry enable (used in HS/FS mode). */
#define USB_CONF_L1EN BIT(16 )
/* L1 LPM state entry disable (used in HS/FS mode). */
#define USB_CONF_L1DS BIT(17 )
/* USB 2.0 clock gate disable. */
#define USB_CONF_CLK2OFFEN BIT(18 )
/* USB 2.0 clock gate enable. */
#define USB_CONF_CLK2OFFDS BIT(19 )
/* L0 LPM state entry request (used in HS/FS mode). */
#define USB_CONF_LGO_L0 BIT(20 )
/* USB 3.0 clock gate disable. */
#define USB_CONF_CLK3OFFEN BIT(21 )
/* USB 3.0 clock gate enable. */
#define USB_CONF_CLK3OFFDS BIT(22 )
/* Bit 23 is reserved*/
/* U1 state entry enable (used in SS mode). */
#define USB_CONF_U1EN BIT(24 )
/* U1 state entry disable (used in SS mode). */
#define USB_CONF_U1DS BIT(25 )
/* U2 state entry enable (used in SS mode). */
#define USB_CONF_U2EN BIT(26 )
/* U2 state entry disable (used in SS mode). */
#define USB_CONF_U2DS BIT(27 )
/* U0 state entry request (used in SS mode). */
#define USB_CONF_LGO_U0 BIT(28 )
/* U1 state entry request (used in SS mode). */
#define USB_CONF_LGO_U1 BIT(29 )
/* U2 state entry request (used in SS mode). */
#define USB_CONF_LGO_U2 BIT(30 )
/* SS.Inactive state entry request (used in SS mode) */
#define USB_CONF_LGO_SSINACT BIT(31 )
/* USB_STS - bitmasks */
/*
* Configuration status .
* 1 - device is in the configured state .
* 0 - device is not configured .
*/
#define USB_STS_CFGSTS_MASK BIT(0 )
#define USB_STS_CFGSTS(p) ((p) & USB_STS_CFGSTS_MASK)
/*
* On - chip memory overflow .
* 0 - On - chip memory status OK .
* 1 - On - chip memory overflow .
*/
#define USB_STS_OV_MASK BIT(1 )
#define USB_STS_OV(p) ((p) & USB_STS_OV_MASK)
/*
* SuperSpeed connection status .
* 0 - USB in SuperSpeed mode disconnected .
* 1 - USB in SuperSpeed mode connected .
*/
#define USB_STS_USB3CONS_MASK BIT(2 )
#define USB_STS_USB3CONS(p) ((p) & USB_STS_USB3CONS_MASK)
/*
* DMA transfer configuration status .
* 0 - single request .
* 1 - multiple TRB chain
* Supported only for controller version < DEV_VER_V3
*/
#define USB_STS_DTRANS_MASK BIT(3 )
#define USB_STS_DTRANS(p) ((p) & USB_STS_DTRANS_MASK)
/*
* Device speed .
* 0 - Undefined ( value after reset ) .
* 1 - Low speed
* 2 - Full speed
* 3 - High speed
* 4 - Super speed
*/
#define USB_STS_USBSPEED_MASK GENMASK(6 , 4 )
#define USB_STS_USBSPEED(p) (((p) & USB_STS_USBSPEED_MASK) >> 4 )
#define USB_STS_LS (0 x1 << 4 )
#define USB_STS_FS (0 x2 << 4 )
#define USB_STS_HS (0 x3 << 4 )
#define USB_STS_SS (0 x4 << 4 )
#define DEV_UNDEFSPEED(p) (((p) & USB_STS_USBSPEED_MASK) == (0 x0 << 4 ))
#define DEV_LOWSPEED(p) (((p) & USB_STS_USBSPEED_MASK) == USB_STS_LS)
#define DEV_FULLSPEED(p) (((p) & USB_STS_USBSPEED_MASK) == USB_STS_FS)
#define DEV_HIGHSPEED(p) (((p) & USB_STS_USBSPEED_MASK) == USB_STS_HS)
#define DEV_SUPERSPEED(p) (((p) & USB_STS_USBSPEED_MASK) == USB_STS_SS)
/*
* Endianness for SFR access .
* 0 - Little Endian order ( default after hardware reset ) .
* 1 - Big Endian order
*/
#define USB_STS_ENDIAN_MASK BIT(7 )
#define USB_STS_ENDIAN(p) ((p) & USB_STS_ENDIAN_MASK)
/*
* HS / FS clock turn - off status .
* 0 - hsfs clock is always on .
* 1 - hsfs clock turn - off in L2 ( HS / FS mode ) is enabled
* ( default after hardware reset ) .
*/
#define USB_STS_CLK2OFF_MASK BIT(8 )
#define USB_STS_CLK2OFF(p) ((p) & USB_STS_CLK2OFF_MASK)
/*
* PCLK clock turn - off status .
* 0 - pclk clock is always on .
* 1 - pclk clock turn - off in U3 ( SS mode ) is enabled
* ( default after hardware reset ) .
*/
#define USB_STS_CLK3OFF_MASK BIT(9 )
#define USB_STS_CLK3OFF(p) ((p) & USB_STS_CLK3OFF_MASK)
/*
* Controller in reset state .
* 0 - Internal reset is active .
* 1 - Internal reset is not active and controller is fully operational .
*/
#define USB_STS_IN_RST_MASK BIT(10 )
#define USB_STS_IN_RST(p) ((p) & USB_STS_IN_RST_MASK)
/*
* Status of the " TDL calculation basing on TRB " feature .
* 0 - disabled
* 1 - enabled
* Supported only for DEV_VER_V2 controller version .
*/
#define USB_STS_TDL_TRB_ENABLED BIT(11 )
/*
* Device enable Status .
* 0 - USB device is disabled ( VBUS input is disconnected from internal logic ) .
* 1 - USB device is enabled ( VBUS input is connected to the internal logic ) .
*/
#define USB_STS_DEVS_MASK BIT(14 )
#define USB_STS_DEVS(p) ((p) & USB_STS_DEVS_MASK)
/*
* Address status .
* 0 - USB device is default state .
* 1 - USB device is at least in address state .
*/
#define USB_STS_ADDRESSED_MASK BIT(15 )
#define USB_STS_ADDRESSED(p) ((p) & USB_STS_ADDRESSED_MASK)
/*
* L1 LPM state enable status ( used in HS / FS mode ) .
* 0 - Entering to L1 LPM state disabled .
* 1 - Entering to L1 LPM state enabled .
*/
#define USB_STS_L1ENS_MASK BIT(16 )
#define USB_STS_L1ENS(p) ((p) & USB_STS_L1ENS_MASK)
/*
* Internal VBUS connection status ( used both in HS / FS and SS mode ) .
* 0 - internal VBUS is not detected .
* 1 - internal VBUS is detected .
*/
#define USB_STS_VBUSS_MASK BIT(17 )
#define USB_STS_VBUSS(p) ((p) & USB_STS_VBUSS_MASK)
/*
* HS / FS LPM state ( used in FS / HS mode ) .
* 0 - L0 State
* 1 - L1 State
* 2 - L2 State
* 3 - L3 State
*/
#define USB_STS_LPMST_MASK GENMASK(19 , 18 )
#define DEV_L0_STATE(p) (((p) & USB_STS_LPMST_MASK) == (0 x0 << 18 ))
#define DEV_L1_STATE(p) (((p) & USB_STS_LPMST_MASK) == (0 x1 << 18 ))
#define DEV_L2_STATE(p) (((p) & USB_STS_LPMST_MASK) == (0 x2 << 18 ))
#define DEV_L3_STATE(p) (((p) & USB_STS_LPMST_MASK) == (0 x3 << 18 ))
/*
* Disable HS status ( used in FS / HS mode ) .
* 0 - the disconnect bit for HS / FS mode is set .
* 1 - the disconnect bit for HS / FS mode is not set .
*/
#define USB_STS_USB2CONS_MASK BIT(20 )
#define USB_STS_USB2CONS(p) ((p) & USB_STS_USB2CONS_MASK)
/*
* HS / FS mode connection status ( used in FS / HS mode ) .
* 0 - High Speed operations in USB2 . 0 ( FS / HS ) mode not disabled .
* 1 - High Speed operations in USB2 . 0 ( FS / HS ) .
*/
#define USB_STS_DISABLE_HS_MASK BIT(21 )
#define USB_STS_DISABLE_HS(p) ((p) & USB_STS_DISABLE_HS_MASK)
/*
* U1 state enable status ( used in SS mode ) .
* 0 - Entering to U1 state disabled .
* 1 - Entering to U1 state enabled .
*/
#define USB_STS_U1ENS_MASK BIT(24 )
#define USB_STS_U1ENS(p) ((p) & USB_STS_U1ENS_MASK)
/*
* U2 state enable status ( used in SS mode ) .
* 0 - Entering to U2 state disabled .
* 1 - Entering to U2 state enabled .
*/
#define USB_STS_U2ENS_MASK BIT(25 )
#define USB_STS_U2ENS(p) ((p) & USB_STS_U2ENS_MASK)
/*
* SuperSpeed Link LTSSM state . This field reflects USBSS - DEV current
* SuperSpeed link state
*/
#define USB_STS_LST_MASK GENMASK(29 , 26 )
#define DEV_LST_U0 (((p) & USB_STS_LST_MASK) == (0 x0 << 26 ))
#define DEV_LST_U1 (((p) & USB_STS_LST_MASK) == (0 x1 << 26 ))
#define DEV_LST_U2 (((p) & USB_STS_LST_MASK) == (0 x2 << 26 ))
#define DEV_LST_U3 (((p) & USB_STS_LST_MASK) == (0 x3 << 26 ))
#define DEV_LST_DISABLED (((p) & USB_STS_LST_MASK) == (0 x4 << 26 ))
#define DEV_LST_RXDETECT (((p) & USB_STS_LST_MASK) == (0 x5 << 26 ))
#define DEV_LST_INACTIVE (((p) & USB_STS_LST_MASK) == (0 x6 << 26 ))
#define DEV_LST_POLLING (((p) & USB_STS_LST_MASK) == (0 x7 << 26 ))
#define DEV_LST_RECOVERY (((p) & USB_STS_LST_MASK) == (0 x8 << 26 ))
#define DEV_LST_HOT_RESET (((p) & USB_STS_LST_MASK) == (0 x9 << 26 ))
#define DEV_LST_COMP_MODE (((p) & USB_STS_LST_MASK) == (0 xa << 26 ))
#define DEV_LST_LB_STATE (((p) & USB_STS_LST_MASK) == (0 xb << 26 ))
/*
* DMA clock turn - off status .
* 0 - DMA clock is always on ( default after hardware reset ) .
* 1 - DMA clock turn - off in U1 , U2 and U3 ( SS mode ) is enabled .
*/
#define USB_STS_DMAOFF_MASK BIT(30 )
#define USB_STS_DMAOFF(p) ((p) & USB_STS_DMAOFF_MASK)
/*
* SFR Endian status .
* 0 - Little Endian order ( default after hardware reset ) .
* 1 - Big Endian order .
*/
#define USB_STS_ENDIAN2_MASK BIT(31 )
#define USB_STS_ENDIAN2(p) ((p) & USB_STS_ENDIAN2_MASK)
/* USB_CMD - bitmasks */
/* Set Function Address */
#define USB_CMD_SET_ADDR BIT(0 )
/*
* Function Address This field is saved to the device only when the field
* SET_ADDR is set ' 1 ' during write to USB_CMD register .
* Software is responsible for entering the address of the device during
* SET_ADDRESS request service . This field should be set immediately after
* the SETUP packet is decoded , and prior to confirmation of the status phase
*/
#define USB_CMD_FADDR_MASK GENMASK(7 , 1 )
#define USB_CMD_FADDR(p) (((p) << 1 ) & USB_CMD_FADDR_MASK)
/* Send Function Wake Device Notification TP (used only in SS mode). */
#define USB_CMD_SDNFW BIT(8 )
/* Set Test Mode (used only in HS/FS mode). */
#define USB_CMD_STMODE BIT(9 )
/* Test mode selector (used only in HS/FS mode) */
#define USB_STS_TMODE_SEL_MASK GENMASK(11 , 10 )
#define USB_STS_TMODE_SEL(p) (((p) << 10 ) & USB_STS_TMODE_SEL_MASK)
/*
* Send Latency Tolerance Message Device Notification TP ( used only
* in SS mode ) .
*/
#define USB_CMD_SDNLTM BIT(12 )
/* Send Custom Transaction Packet (used only in SS mode) */
#define USB_CMD_SPKT BIT(13 )
/*Device Notification 'Function Wake' - Interface value (only in SS mode. */
#define USB_CMD_DNFW_INT_MASK GENMASK(23 , 16 )
#define USB_STS_DNFW_INT(p) (((p) << 16 ) & USB_CMD_DNFW_INT_MASK)
/*
* Device Notification ' Latency Tolerance Message ' - 373 BELT value [ 7 : 0 ]
* ( used only in SS mode ) .
*/
#define USB_CMD_DNLTM_BELT_MASK GENMASK(27 , 16 )
#define USB_STS_DNLTM_BELT(p) (((p) << 16 ) & USB_CMD_DNLTM_BELT_MASK)
/* USB_ITPN - bitmasks */
/*
* ITP ( SS ) / SOF ( HS / FS ) number
* In SS mode this field represent number of last ITP received from host .
* In HS / FS mode this field represent number of last SOF received from host .
*/
#define USB_ITPN_MASK GENMASK(13 , 0 )
#define USB_ITPN(p) ((p) & USB_ITPN_MASK)
/* USB_LPM - bitmasks */
/* Host Initiated Resume Duration. */
#define USB_LPM_HIRD_MASK GENMASK(3 , 0 )
#define USB_LPM_HIRD(p) ((p) & USB_LPM_HIRD_MASK)
/* Remote Wakeup Enable (bRemoteWake). */
#define USB_LPM_BRW BIT(4 )
/* USB_IEN - bitmasks */
/* SS connection interrupt enable */
#define USB_IEN_CONIEN BIT(0 )
/* SS disconnection interrupt enable. */
#define USB_IEN_DISIEN BIT(1 )
/* USB SS warm reset interrupt enable. */
#define USB_IEN_UWRESIEN BIT(2 )
/* USB SS hot reset interrupt enable */
#define USB_IEN_UHRESIEN BIT(3 )
/* SS link U3 state enter interrupt enable (suspend).*/
#define USB_IEN_U3ENTIEN BIT(4 )
/* SS link U3 state exit interrupt enable (wakeup). */
#define USB_IEN_U3EXTIEN BIT(5 )
/* SS link U2 state enter interrupt enable.*/
#define USB_IEN_U2ENTIEN BIT(6 )
/* SS link U2 state exit interrupt enable.*/
#define USB_IEN_U2EXTIEN BIT(7 )
/* SS link U1 state enter interrupt enable.*/
#define USB_IEN_U1ENTIEN BIT(8 )
/* SS link U1 state exit interrupt enable.*/
#define USB_IEN_U1EXTIEN BIT(9 )
/* ITP/SOF packet detected interrupt enable.*/
#define USB_IEN_ITPIEN BIT(10 )
/* Wakeup interrupt enable.*/
#define USB_IEN_WAKEIEN BIT(11 )
/* Send Custom Packet interrupt enable.*/
#define USB_IEN_SPKTIEN BIT(12 )
/* HS/FS mode connection interrupt enable.*/
#define USB_IEN_CON2IEN BIT(16 )
/* HS/FS mode disconnection interrupt enable.*/
#define USB_IEN_DIS2IEN BIT(17 )
/* USB reset (HS/FS mode) interrupt enable.*/
#define USB_IEN_U2RESIEN BIT(18 )
/* LPM L2 state enter interrupt enable.*/
#define USB_IEN_L2ENTIEN BIT(20 )
/* LPM L2 state exit interrupt enable.*/
#define USB_IEN_L2EXTIEN BIT(21 )
/* LPM L1 state enter interrupt enable.*/
#define USB_IEN_L1ENTIEN BIT(24 )
/* LPM L1 state exit interrupt enable.*/
#define USB_IEN_L1EXTIEN BIT(25 )
/* Configuration reset interrupt enable.*/
#define USB_IEN_CFGRESIEN BIT(26 )
/* Start of the USB SS warm reset interrupt enable.*/
#define USB_IEN_UWRESSIEN BIT(28 )
/* End of the USB SS warm reset interrupt enable.*/
#define USB_IEN_UWRESEIEN BIT(29 )
#define USB_IEN_INIT (USB_IEN_U2RESIEN | USB_ISTS_DIS2I | USB_IEN_CON2IEN \
| USB_IEN_UHRESIEN | USB_IEN_UWRESIEN | USB_IEN_DISIEN \
| USB_IEN_CONIEN | USB_IEN_U3EXTIEN | USB_IEN_L2ENTIEN \
| USB_IEN_L2EXTIEN | USB_IEN_L1ENTIEN | USB_IEN_U3ENTIEN)
/* USB_ISTS - bitmasks */
/* SS Connection detected. */
#define USB_ISTS_CONI BIT(0 )
/* SS Disconnection detected. */
#define USB_ISTS_DISI BIT(1 )
/* UUSB warm reset detectede. */
#define USB_ISTS_UWRESI BIT(2 )
/* USB hot reset detected. */
#define USB_ISTS_UHRESI BIT(3 )
/* U3 link state enter detected (suspend).*/
#define USB_ISTS_U3ENTI BIT(4 )
/* U3 link state exit detected (wakeup). */
#define USB_ISTS_U3EXTI BIT(5 )
/* U2 link state enter detected.*/
#define USB_ISTS_U2ENTI BIT(6 )
/* U2 link state exit detected.*/
#define USB_ISTS_U2EXTI BIT(7 )
/* U1 link state enter detected.*/
#define USB_ISTS_U1ENTI BIT(8 )
/* U1 link state exit detected.*/
#define USB_ISTS_U1EXTI BIT(9 )
/* ITP/SOF packet detected.*/
#define USB_ISTS_ITPI BIT(10 )
/* Wakeup detected.*/
#define USB_ISTS_WAKEI BIT(11 )
/* Send Custom Packet detected.*/
#define USB_ISTS_SPKTI BIT(12 )
/* HS/FS mode connection detected.*/
#define USB_ISTS_CON2I BIT(16 )
/* HS/FS mode disconnection detected.*/
#define USB_ISTS_DIS2I BIT(17 )
/* USB reset (HS/FS mode) detected.*/
#define USB_ISTS_U2RESI BIT(18 )
/* LPM L2 state enter detected.*/
#define USB_ISTS_L2ENTI BIT(20 )
/* LPM L2 state exit detected.*/
#define USB_ISTS_L2EXTI BIT(21 )
/* LPM L1 state enter detected.*/
#define USB_ISTS_L1ENTI BIT(24 )
/* LPM L1 state exit detected.*/
#define USB_ISTS_L1EXTI BIT(25 )
/* USB configuration reset detected.*/
#define USB_ISTS_CFGRESI BIT(26 )
/* Start of the USB warm reset detected.*/
#define USB_ISTS_UWRESSI BIT(28 )
/* End of the USB warm reset detected.*/
#define USB_ISTS_UWRESEI BIT(29 )
/* USB_SEL - bitmasks */
#define EP_SEL_EPNO_MASK GENMASK(3 , 0 )
/* Endpoint number. */
#define EP_SEL_EPNO(p) ((p) & EP_SEL_EPNO_MASK)
/* Endpoint direction bit - 0 - OUT, 1 - IN. */
#define EP_SEL_DIR BIT(7 )
#define select_ep_in(nr) (EP_SEL_EPNO(p) | EP_SEL_DIR)
#define select_ep_out (EP_SEL_EPNO(p))
/* EP_TRADDR - bitmasks */
/* Transfer Ring address. */
#define EP_TRADDR_TRADDR(p) ((p))
/* EP_CFG - bitmasks */
/* Endpoint enable */
#define EP_CFG_ENABLE BIT(0 )
/*
* Endpoint type .
* 1 - isochronous
* 2 - bulk
* 3 - interrupt
*/
#define EP_CFG_EPTYPE_MASK GENMASK(2 , 1 )
#define EP_CFG_EPTYPE(p) (((p) << 1 ) & EP_CFG_EPTYPE_MASK)
/* Stream support enable (only in SS mode). */
#define EP_CFG_STREAM_EN BIT(3 )
/* TDL check (only in SS mode for BULK EP). */
#define EP_CFG_TDL_CHK BIT(4 )
/* SID check (only in SS mode for BULK OUT EP). */
#define EP_CFG_SID_CHK BIT(5 )
/* DMA transfer endianness. */
#define EP_CFG_EPENDIAN BIT(7 )
/* Max burst size (used only in SS mode). */
#define EP_CFG_MAXBURST_MASK GENMASK(11 , 8 )
#define EP_CFG_MAXBURST(p) (((p) << 8 ) & EP_CFG_MAXBURST_MASK)
#define EP_CFG_MAXBURST_MAX 15
/* ISO max burst. */
#define EP_CFG_MULT_MASK GENMASK(15 , 14 )
#define EP_CFG_MULT(p) (((p) << 14 ) & EP_CFG_MULT_MASK)
#define EP_CFG_MULT_MAX 2
/* ISO max burst. */
#define EP_CFG_MAXPKTSIZE_MASK GENMASK(26 , 16 )
#define EP_CFG_MAXPKTSIZE(p) (((p) << 16 ) & EP_CFG_MAXPKTSIZE_MASK)
/* Max number of buffered packets. */
#define EP_CFG_BUFFERING_MASK GENMASK(31 , 27 )
#define EP_CFG_BUFFERING(p) (((p) << 27 ) & EP_CFG_BUFFERING_MASK)
#define EP_CFG_BUFFERING_MAX 15
/* EP_CMD - bitmasks */
/* Endpoint reset. */
#define EP_CMD_EPRST BIT(0 )
/* Endpoint STALL set. */
#define EP_CMD_SSTALL BIT(1 )
/* Endpoint STALL clear. */
#define EP_CMD_CSTALL BIT(2 )
/* Send ERDY TP. */
#define EP_CMD_ERDY BIT(3 )
/* Request complete. */
#define EP_CMD_REQ_CMPL BIT(5 )
/* Transfer descriptor ready. */
#define EP_CMD_DRDY BIT(6 )
/* Data flush. */
#define EP_CMD_DFLUSH BIT(7 )
/*
* Transfer Descriptor Length write ( used only for Bulk Stream capable
* endpoints in SS mode ) .
* Bit Removed from DEV_VER_V3 controller version .
*/
#define EP_CMD_STDL BIT(8 )
/*
* Transfer Descriptor Length ( used only in SS mode for bulk endpoints ) .
* Bits Removed from DEV_VER_V3 controller version .
*/
#define EP_CMD_TDL_MASK GENMASK(15 , 9 )
#define EP_CMD_TDL_SET(p) (((p) << 9 ) & EP_CMD_TDL_MASK)
#define EP_CMD_TDL_GET(p) (((p) & EP_CMD_TDL_MASK) >> 9 )
#define EP_CMD_TDL_MAX (EP_CMD_TDL_MASK >> 9 )
/* ERDY Stream ID value (used in SS mode). */
#define EP_CMD_ERDY_SID_MASK GENMASK(31 , 16 )
#define EP_CMD_ERDY_SID(p) (((p) << 16 ) & EP_CMD_ERDY_SID_MASK)
/* EP_STS - bitmasks */
/* Setup transfer complete. */
#define EP_STS_SETUP BIT(0 )
/* Endpoint STALL status. */
#define EP_STS_STALL(p) ((p) & BIT(1 ))
/* Interrupt On Complete. */
#define EP_STS_IOC BIT(2 )
/* Interrupt on Short Packet. */
#define EP_STS_ISP BIT(3 )
/* Transfer descriptor missing. */
#define EP_STS_DESCMIS BIT(4 )
/* Stream Rejected (used only in SS mode) */
#define EP_STS_STREAMR BIT(5 )
/* EXIT from MOVE DATA State (used only for stream transfers in SS mode). */
#define EP_STS_MD_EXIT BIT(6 )
/* TRB error. */
#define EP_STS_TRBERR BIT(7 )
/* Not ready (used only in SS mode). */
#define EP_STS_NRDY BIT(8 )
/* DMA busy bit. */
#define EP_STS_DBUSY BIT(9 )
/* Endpoint Buffer Empty */
#define EP_STS_BUFFEMPTY(p) ((p) & BIT(10 ))
/* Current Cycle Status */
#define EP_STS_CCS(p) ((p) & BIT(11 ))
/* Prime (used only in SS mode. */
#define EP_STS_PRIME BIT(12 )
/* Stream error (used only in SS mode). */
#define EP_STS_SIDERR BIT(13 )
/* OUT size mismatch. */
#define EP_STS_OUTSMM BIT(14 )
/* ISO transmission error. */
#define EP_STS_ISOERR BIT(15 )
/* Host Packet Pending (only for SS mode). */
#define EP_STS_HOSTPP(p) ((p) & BIT(16 ))
/* Stream Protocol State Machine State (only for Bulk stream endpoints). */
#define EP_STS_SPSMST_MASK GENMASK(18 , 17 )
#define EP_STS_SPSMST_DISABLED(p) (((p) & EP_STS_SPSMST_MASK) >> 17 )
#define EP_STS_SPSMST_IDLE(p) (((p) & EP_STS_SPSMST_MASK) >> 17 )
#define EP_STS_SPSMST_START_STREAM(p) (((p) & EP_STS_SPSMST_MASK) >> 17 )
#define EP_STS_SPSMST_MOVE_DATA(p) (((p) & EP_STS_SPSMST_MASK) >> 17 )
/* Interrupt On Transfer complete. */
#define EP_STS_IOT BIT(19 )
/* OUT queue endpoint number. */
#define EP_STS_OUTQ_NO_MASK GENMASK(27 , 24 )
#define EP_STS_OUTQ_NO(p) (((p) & EP_STS_OUTQ_NO_MASK) >> 24 )
/* OUT queue valid flag. */
#define EP_STS_OUTQ_VAL_MASK BIT(28 )
#define EP_STS_OUTQ_VAL(p) ((p) & EP_STS_OUTQ_VAL_MASK)
/* SETUP WAIT. */
#define EP_STS_STPWAIT BIT(31 )
/* EP_STS_SID - bitmasks */
/* Stream ID (used only in SS mode). */
#define EP_STS_SID_MASK GENMASK(15 , 0 )
#define EP_STS_SID(p) ((p) & EP_STS_SID_MASK)
/* EP_STS_EN - bitmasks */
/* SETUP interrupt enable. */
#define EP_STS_EN_SETUPEN BIT(0 )
/* OUT transfer missing descriptor enable. */
#define EP_STS_EN_DESCMISEN BIT(4 )
/* Stream Rejected enable. */
#define EP_STS_EN_STREAMREN BIT(5 )
/* Move Data Exit enable.*/
#define EP_STS_EN_MD_EXITEN BIT(6 )
/* TRB enable. */
#define EP_STS_EN_TRBERREN BIT(7 )
/* NRDY enable. */
#define EP_STS_EN_NRDYEN BIT(8 )
/* Prime enable. */
#define EP_STS_EN_PRIMEEEN BIT(12 )
/* Stream error enable. */
#define EP_STS_EN_SIDERREN BIT(13 )
/* OUT size mismatch enable. */
#define EP_STS_EN_OUTSMMEN BIT(14 )
/* ISO transmission error enable. */
#define EP_STS_EN_ISOERREN BIT(15 )
/* Interrupt on Transmission complete enable. */
#define EP_STS_EN_IOTEN BIT(19 )
/* Setup Wait interrupt enable. */
#define EP_STS_EN_STPWAITEN BIT(31 )
/* DRBL- bitmasks */
#define DB_VALUE_BY_INDEX(index) (1 << (index))
#define DB_VALUE_EP0_OUT BIT(0 )
#define DB_VALUE_EP0_IN BIT(16 )
/* EP_IEN - bitmasks */
#define EP_IEN(index) (1 << (index))
#define EP_IEN_EP_OUT0 BIT(0 )
#define EP_IEN_EP_IN0 BIT(16 )
/* EP_ISTS - bitmasks */
#define EP_ISTS(index) (1 << (index))
#define EP_ISTS_EP_OUT0 BIT(0 )
#define EP_ISTS_EP_IN0 BIT(16 )
/* USB_PWR- bitmasks */
/*Power Shut Off capability enable*/
#define PUSB_PWR_PSO_EN BIT(0 )
/*Power Shut Off capability disable*/
#define PUSB_PWR_PSO_DS BIT(1 )
/*
* Enables turning - off Reference Clock .
* This bit is optional and implemented only when support for OTG is
* implemented ( indicated by OTG_READY bit set to ' 1 ' ) .
*/
#define PUSB_PWR_STB_CLK_SWITCH_EN BIT(8 )
/*
* Status bit indicating that operation required by STB_CLK_SWITCH_EN write
* is completed
*/
#define PUSB_PWR_STB_CLK_SWITCH_DONE BIT(9 )
/* This bit informs if Fast Registers Access is enabled. */
#define PUSB_PWR_FST_REG_ACCESS_STAT BIT(30 )
/* Fast Registers Access Enable. */
#define PUSB_PWR_FST_REG_ACCESS BIT(31 )
/* USB_CONF2- bitmasks */
/*
* Writing 1 disables TDL calculation basing on TRB feature in controller
* for DMULT mode .
* Bit supported only for DEV_VER_V2 version .
*/
#define USB_CONF2_DIS_TDL_TRB BIT(1 )
/*
* Writing 1 enables TDL calculation basing on TRB feature in controller
* for DMULT mode .
* Bit supported only for DEV_VER_V2 version .
*/
#define USB_CONF2_EN_TDL_TRB BIT(2 )
/* USB_CAP1- bitmasks */
/*
* SFR Interface type
* These field reflects type of SFR interface implemented :
* 0 x0 - OCP
* 0 x1 - AHB ,
* 0 x2 - PLB
* 0 x3 - AXI
* 0 x4 - 0 xF - reserved
*/
#define USB_CAP1_SFR_TYPE_MASK GENMASK(3 , 0 )
#define DEV_SFR_TYPE_OCP(p) (((p) & USB_CAP1_SFR_TYPE_MASK) == 0 x0)
#define DEV_SFR_TYPE_AHB(p) (((p) & USB_CAP1_SFR_TYPE_MASK) == 0 x1)
#define DEV_SFR_TYPE_PLB(p) (((p) & USB_CAP1_SFR_TYPE_MASK) == 0 x2)
#define DEV_SFR_TYPE_AXI(p) (((p) & USB_CAP1_SFR_TYPE_MASK) == 0 x3)
/*
* SFR Interface width
* These field reflects width of SFR interface implemented :
* 0 x0 - 8 bit interface ,
* 0 x1 - 16 bit interface ,
* 0 x2 - 32 bit interface
* 0 x3 - 64 bit interface
* 0 x4 - 0 xF - reserved
*/
#define USB_CAP1_SFR_WIDTH_MASK GENMASK(7 , 4 )
#define DEV_SFR_WIDTH_8(p) (((p) & USB_CAP1_SFR_WIDTH_MASK) == (0 x0 << 4 ))
#define DEV_SFR_WIDTH_16(p) (((p) & USB_CAP1_SFR_WIDTH_MASK) == (0 x1 << 4 ))
#define DEV_SFR_WIDTH_32(p) (((p) & USB_CAP1_SFR_WIDTH_MASK) == (0 x2 << 4 ))
#define DEV_SFR_WIDTH_64(p) (((p) & USB_CAP1_SFR_WIDTH_MASK) == (0 x3 << 4 ))
/*
* DMA Interface type
* These field reflects type of DMA interface implemented :
* 0 x0 - OCP
* 0 x1 - AHB ,
* 0 x2 - PLB
* 0 x3 - AXI
* 0 x4 - 0 xF - reserved
*/
#define USB_CAP1_DMA_TYPE_MASK GENMASK(11 , 8 )
#define DEV_DMA_TYPE_OCP(p) (((p) & USB_CAP1_DMA_TYPE_MASK) == (0 x0 << 8 ))
#define DEV_DMA_TYPE_AHB(p) (((p) & USB_CAP1_DMA_TYPE_MASK) == (0 x1 << 8 ))
#define DEV_DMA_TYPE_PLB(p) (((p) & USB_CAP1_DMA_TYPE_MASK) == (0 x2 << 8 ))
#define DEV_DMA_TYPE_AXI(p) (((p) & USB_CAP1_DMA_TYPE_MASK) == (0 x3 << 8 ))
/*
* DMA Interface width
* These field reflects width of DMA interface implemented :
* 0 x0 - reserved ,
* 0 x1 - reserved ,
* 0 x2 - 32 bit interface
* 0 x3 - 64 bit interface
* 0 x4 - 0 xF - reserved
*/
#define USB_CAP1_DMA_WIDTH_MASK GENMASK(15 , 12 )
#define DEV_DMA_WIDTH_32(p) (((p) & USB_CAP1_DMA_WIDTH_MASK) == (0 x2 << 12 ))
#define DEV_DMA_WIDTH_64(p) (((p) & USB_CAP1_DMA_WIDTH_MASK) == (0 x3 << 12 ))
/*
* USB3 PHY Interface type
* These field reflects type of USB3 PHY interface implemented :
* 0 x0 - USB PIPE ,
* 0 x1 - RMMI ,
* 0 x2 - 0 xF - reserved
*/
#define USB_CAP1_U3PHY_TYPE_MASK GENMASK(19 , 16 )
#define DEV_U3PHY_PIPE(p) (((p) & USB_CAP1_U3PHY_TYPE_MASK) == (0 x0 << 16 ))
#define DEV_U3PHY_RMMI(p) (((p) & USB_CAP1_U3PHY_TYPE_MASK) == (0 x1 << 16 ))
/*
* USB3 PHY Interface width
* These field reflects width of USB3 PHY interface implemented :
* 0 x0 - 8 bit PIPE interface ,
* 0 x1 - 16 bit PIPE interface ,
* 0 x2 - 32 bit PIPE interface ,
* 0 x3 - 64 bit PIPE interface
* 0 x4 - 0 xF - reserved
* Note : When SSIC interface is implemented this field shows the width of
* internal PIPE interface . The RMMI interface is always 20 bit wide .
*/
#define USB_CAP1_U3PHY_WIDTH_MASK GENMASK(23 , 20 )
#define DEV_U3PHY_WIDTH_8(p) \
(((p) & USB_CAP1_U3PHY_WIDTH_MASK) == (0 x0 << 20 ))
#define DEV_U3PHY_WIDTH_16(p) \
(((p) & USB_CAP1_U3PHY_WIDTH_MASK) == (0 x1 << 16 ))
#define DEV_U3PHY_WIDTH_32(p) \
(((p) & USB_CAP1_U3PHY_WIDTH_MASK) == (0 x2 << 20 ))
#define DEV_U3PHY_WIDTH_64(p) \
(((p) & USB_CAP1_U3PHY_WIDTH_MASK) == (0 x3 << 16 ))
/*
* USB2 PHY Interface enable
* These field informs if USB2 PHY interface is implemented :
* 0 x0 - interface NOT implemented ,
* 0 x1 - interface implemented
*/
#define USB_CAP1_U2PHY_EN(p) ((p) & BIT(24 ))
/*
* USB2 PHY Interface type
* These field reflects type of USB2 PHY interface implemented :
* 0 x0 - UTMI ,
* 0 x1 - ULPI
*/
#define DEV_U2PHY_ULPI(p) ((p) & BIT(25 ))
/*
* USB2 PHY Interface width
* These field reflects width of USB2 PHY interface implemented :
* 0 x0 - 8 bit interface ,
* 0 x1 - 16 bit interface ,
* Note : The ULPI interface is always 8 bit wide .
*/
#define DEV_U2PHY_WIDTH_16(p) ((p) & BIT(26 ))
/*
* OTG Ready
* 0 x0 - pure device mode
* 0 x1 - some features and ports for CDNS USB OTG controller are implemented .
*/
#define USB_CAP1_OTG_READY(p) ((p) & BIT(27 ))
/*
* When set , indicates that controller supports automatic internal TDL
* calculation basing on the size provided in TRB ( TRB [ 22 : 17 ] ) for DMULT mode
* Supported only for DEV_VER_V2 controller version .
*/
#define USB_CAP1_TDL_FROM_TRB(p) ((p) & BIT(28 ))
/* USB_CAP2- bitmasks */
/*
* The actual size of the connected On - chip RAM memory in kB :
* - 0 means 256 kB ( max supported mem size )
* - value other than 0 reflects the mem size in kB
*/
#define USB_CAP2_ACTUAL_MEM_SIZE(p) ((p) & GENMASK(7 , 0 ))
/*
* Max supported mem size
* These field reflects width of on - chip RAM address bus width ,
* which determines max supported mem size :
* 0 x0 - 0 x7 - reserved ,
* 0 x8 - support for 4 kB mem ,
* 0 x9 - support for 8 kB mem ,
* 0 xA - support for 16 kB mem ,
* 0 xB - support for 32 kB mem ,
* 0 xC - support for 64 kB mem ,
* 0 xD - support for 128 kB mem ,
* 0 xE - support for 256 kB mem ,
* 0 xF - reserved
*/
#define USB_CAP2_MAX_MEM_SIZE(p) ((p) & GENMASK(11 , 8 ))
/* USB_CAP3- bitmasks */
#define EP_IS_IMPLEMENTED(reg, index) ((reg) & (1 << (index)))
/* USB_CAP4- bitmasks */
#define EP_SUPPORT_ISO(reg, index) ((reg) & (1 << (index)))
/* USB_CAP5- bitmasks */
#define EP_SUPPORT_STREAM(reg, index) ((reg) & (1 << (index)))
/* USB_CAP6- bitmasks */
/* The USBSS-DEV Controller Internal build number. */
#define GET_DEV_BASE_VERSION(p) ((p) & GENMASK(23 , 0 ))
/* The USBSS-DEV Controller version number. */
#define GET_DEV_CUSTOM_VERSION(p) ((p) & GENMASK(31 , 24 ))
#define DEV_VER_NXP_V1 0 x00024502
#define DEV_VER_TI_V1 0 x00024509
#define DEV_VER_V2 0 x0002450C
#define DEV_VER_V3 0 x0002450d
/* DBG_LINK1- bitmasks */
/*
* LFPS_MIN_DET_U1_EXIT value This parameter configures the minimum
* time required for decoding the received LFPS as an LFPS . U1_Exit .
*/
#define DBG_LINK1_LFPS_MIN_DET_U1_EXIT(p) ((p) & GENMASK(7 , 0 ))
/*
* LFPS_MIN_GEN_U1_EXIT value This parameter configures the minimum time for
* phytxelecidle deassertion when LFPS . U1_Exit
*/
#define DBG_LINK1_LFPS_MIN_GEN_U1_EXIT_MASK GENMASK(15 , 8 )
#define DBG_LINK1_LFPS_MIN_GEN_U1_EXIT(p) (((p) << 8 ) & GENMASK(15 , 8 ))
/*
* RXDET_BREAK_DIS value This parameter configures terminating the Far - end
* Receiver termination detection sequence :
* 0 : it is possible that USBSS_DEV will terminate Farend receiver
* termination detection sequence
* 1 : USBSS_DEV will not terminate Far - end receiver termination
* detection sequence
*/
#define DBG_LINK1_RXDET_BREAK_DIS BIT(16 )
/* LFPS_GEN_PING value This parameter configures the LFPS.Ping generation */
#define DBG_LINK1_LFPS_GEN_PING(p) (((p) << 17 ) & GENMASK(21 , 17 ))
/*
* Set the LFPS_MIN_DET_U1_EXIT value Writing ' 1 ' to this bit writes the
* LFPS_MIN_DET_U1_EXIT field value to the device . This bit is automatically
* cleared . Writing ' 0 ' has no effect
*/
#define DBG_LINK1_LFPS_MIN_DET_U1_EXIT_SET BIT(24 )
/*
* Set the LFPS_MIN_GEN_U1_EXIT value . Writing ' 1 ' to this bit writes the
* LFPS_MIN_GEN_U1_EXIT field value to the device . This bit is automatically
* cleared . Writing ' 0 ' has no effect
*/
#define DBG_LINK1_LFPS_MIN_GEN_U1_EXIT_SET BIT(25 )
/*
* Set the RXDET_BREAK_DIS value Writing ' 1 ' to this bit writes
* the RXDET_BREAK_DIS field value to the device . This bit is automatically
* cleared . Writing ' 0 ' has no effect
*/
#define DBG_LINK1_RXDET_BREAK_DIS_SET BIT(26 )
/*
* Set the LFPS_GEN_PING_SET value Writing ' 1 ' to this bit writes
* the LFPS_GEN_PING field value to the device . This bit is automatically
* cleared . Writing ' 0 ' has no effect . "
*/
#define DBG_LINK1_LFPS_GEN_PING_SET BIT(27 )
/* DMA_AXI_CTRL- bitmasks */
/* The mawprot pin configuration. */
#define DMA_AXI_CTRL_MARPROT(p) ((p) & GENMASK(2 , 0 ))
/* The marprot pin configuration. */
#define DMA_AXI_CTRL_MAWPROT(p) (((p) & GENMASK(2 , 0 )) << 16 )
#define DMA_AXI_CTRL_NON_SECURE 0 x02
#define gadget_to_cdns3_device(g) (container_of(g, struct cdns3_device, gadget))
#define ep_to_cdns3_ep(ep) (container_of(ep, struct cdns3_endpoint, endpoint))
/*-------------------------------------------------------------------------*/
/*
* USBSS - DEV DMA interface .
*/
#define TRBS_PER_SEGMENT 600
#define ISO_MAX_INTERVAL 10
#define MAX_TRB_LENGTH BIT(16 )
#if TRBS_PER_SEGMENT < 2
#error "Incorrect TRBS_PER_SEGMENT. Minimal Transfer Ring size is 2."
#endif
#define TRBS_PER_STREAM_SEGMENT 2
#if TRBS_PER_STREAM_SEGMENT < 2
#error "Incorrect TRBS_PER_STREAMS_SEGMENT. Minimal Transfer Ring size is 2."
#endif
/*
* Only for ISOC endpoints - maximum number of TRBs is calculated as
* pow ( 2 , bInterval - 1 ) * number of usb requests . It is limitation made by
* driver to save memory . Controller must prepare TRB for each ITP even
* if bInterval > 1 . It ' s the reason why driver needs so many TRBs for
* isochronous endpoints .
*/
#define TRBS_PER_ISOC_SEGMENT (ISO_MAX_INTERVAL * 8 )
#define GET_TRBS_PER_SEGMENT(ep_type) ((ep_type) == USB_ENDPOINT_XFER_ISOC ? \
TRBS_PER_ISOC_SEGMENT : TRBS_PER_SEGMENT)
/**
* struct cdns3_trb - represent Transfer Descriptor block .
* @ buffer : pointer to buffer data
* @ length : length of data
* @ control : control flags .
*
* This structure describes transfer block serviced by DMA module .
*/
struct cdns3_trb {
__le32 buffer;
__le32 length;
__le32 control;
};
#define TRB_SIZE (sizeof (struct cdns3_trb))
#define TRB_RING_SIZE (TRB_SIZE * TRBS_PER_SEGMENT)
#define TRB_STREAM_RING_SIZE (TRB_SIZE * TRBS_PER_STREAM_SEGMENT)
#define TRB_ISO_RING_SIZE (TRB_SIZE * TRBS_PER_ISOC_SEGMENT)
#define TRB_CTRL_RING_SIZE (TRB_SIZE * 2 )
/* TRB bit mask */
#define TRB_TYPE_BITMASK GENMASK(15 , 10 )
#define TRB_TYPE(p) ((p) << 10 )
#define TRB_FIELD_TO_TYPE(p) (((p) & TRB_TYPE_BITMASK) >> 10 )
/* TRB type IDs */
/* bulk, interrupt, isoc , and control data stage */
#define TRB_NORMAL 1
/* TRB for linking ring segments */
#define TRB_LINK 6
/* Cycle bit - indicates TRB ownership by driver or hw*/
#define TRB_CYCLE BIT(0 )
/*
* When set to ' 1 ' , the device will toggle its interpretation of the Cycle bit
*/
#define TRB_TOGGLE BIT(1 )
/*
* The controller will set it if OUTSMM ( OUT size mismatch ) is detected ,
* this bit is for normal TRB
*/
#define TRB_SMM BIT(1 )
/*
* Short Packet ( SP ) . OUT EPs at DMULT = 1 only . Indicates if the TRB was
* processed while USB short packet was received . No more buffers defined by
* the TD will be used . DMA will automatically advance to next TD .
* - Shall be set to 0 by Software when putting TRB on the Transfer Ring
* - Shall be set to 1 by Controller when Short Packet condition for this TRB
* is detected independent if ISP is set or not .
*/
#define TRB_SP BIT(1 )
/* Interrupt on short packet*/
#define TRB_ISP BIT(2 )
/*Setting this bit enables FIFO DMA operation mode*/
#define TRB_FIFO_MODE BIT(3 )
/* Set PCIe no snoop attribute */
#define TRB_CHAIN BIT(4 )
/* Interrupt on completion */
#define TRB_IOC BIT(5 )
/* stream ID bitmasks. */
#define TRB_STREAM_ID_BITMASK GENMASK(31 , 16 )
#define TRB_STREAM_ID(p) ((p) << 16 )
#define TRB_FIELD_TO_STREAMID(p) (((p) & TRB_STREAM_ID_BITMASK) >> 16 )
/* Size of TD expressed in USB packets for HS/FS mode. */
#define TRB_TDL_HS_SIZE(p) (((p) << 16 ) & GENMASK(31 , 16 ))
#define TRB_TDL_HS_SIZE_GET(p) (((p) & GENMASK(31 , 16 )) >> 16 )
/* transfer_len bitmasks. */
#define TRB_LEN(p) ((p) & GENMASK(16 , 0 ))
/* Size of TD expressed in USB packets for SS mode. */
#define TRB_TDL_SS_SIZE(p) (((p) << 17 ) & GENMASK(23 , 17 ))
#define TRB_TDL_SS_SIZE_GET(p) (((p) & GENMASK(23 , 17 )) >> 17 )
/* transfer_len bitmasks - bits 31:24 */
#define TRB_BURST_LEN(p) ((unsigned int )((p) << 24 ) & GENMASK(31 , 24 ))
#define TRB_BURST_LEN_GET(p) (((p) & GENMASK(31 , 24 )) >> 24 )
/* Data buffer pointer bitmasks*/
#define TRB_BUFFER(p) ((p) & GENMASK(31 , 0 ))
/*-------------------------------------------------------------------------*/
/* Driver numeric constants */
/* Such declaration should be added to ch9.h */
#define USB_DEVICE_MAX_ADDRESS 127
/* Endpoint init values */
#define CDNS3_EP_MAX_PACKET_LIMIT 1024
#define CDNS3_EP_MAX_STREAMS 15
#define CDNS3_EP0_MAX_PACKET_LIMIT 512
/* All endpoints including EP0 */
#define CDNS3_ENDPOINTS_MAX_COUNT 32
#define CDNS3_EP_ZLP_BUF_SIZE 1024
#define CDNS3_MAX_NUM_DESCMISS_BUF 32
#define CDNS3_DESCMIS_BUF_SIZE 2048 /* Bytes */
#define CDNS3_WA2_NUM_BUFFERS 128
/*-------------------------------------------------------------------------*/
/* Used structs */
struct cdns3_device;
/**
* struct cdns3_endpoint - extended device side representation of USB endpoint .
* @ endpoint : usb endpoint
* @ pending_req_list : list of requests queuing on transfer ring .
* @ deferred_req_list : list of requests waiting for queuing on transfer ring .
* @ wa2_descmiss_req_list : list of requests internally allocated by driver .
* @ trb_pool : transfer ring - array of transaction buffers
* @ trb_pool_dma : dma address of transfer ring
* @ cdns3_dev : device associated with this endpoint
* @ name : a human readable name e . g . ep1out
* @ flags : specify the current state of endpoint
* @ descmis_req : internal transfer object used for getting data from on - chip
* buffer . It can happen only if function driver doesn ' t send usb_request
* object on time .
* @ dir : endpoint direction
* @ num : endpoint number ( 1 - 15 )
* @ type : set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK
* @ interval : interval between packets used for ISOC endpoint .
* @ free_trbs : number of free TRBs in transfer ring
* @ num_trbs : number of all TRBs in transfer ring
* @ alloc_ring_size : size of the allocated TRB ring
* @ pcs : producer cycle state
* @ ccs : consumer cycle state
* @ enqueue : enqueue index in transfer ring
* @ dequeue : dequeue index in transfer ring
* @ trb_burst_size : number of burst used in trb .
*/
struct cdns3_endpoint {
struct usb_ep endpoint;
struct list_head pending_req_list;
struct list_head deferred_req_list;
struct list_head wa2_descmiss_req_list;
int wa2_counter;
struct cdns3_trb *trb_pool;
dma_addr_t trb_pool_dma;
struct cdns3_device *cdns3_dev;
char name[20 ];
#define EP_ENABLED BIT(0 )
#define EP_STALLED BIT(1 )
#define EP_STALL_PENDING BIT(2 )
#define EP_WEDGE BIT(3 )
#define EP_TRANSFER_STARTED BIT(4 )
#define EP_UPDATE_EP_TRBADDR BIT(5 )
#define EP_PENDING_REQUEST BIT(6 )
#define EP_RING_FULL BIT(7 )
#define EP_CLAIMED BIT(8 )
#define EP_DEFERRED_DRDY BIT(9 )
#define EP_QUIRK_ISO_OUT_EN BIT(10 )
#define EP_QUIRK_END_TRANSFER BIT(11 )
#define EP_QUIRK_EXTRA_BUF_DET BIT(12 )
#define EP_QUIRK_EXTRA_BUF_EN BIT(13 )
#define EP_TDLCHK_EN BIT(15 )
#define EP_CONFIGURED BIT(16 )
u32 flags;
struct cdns3_request *descmis_req;
u8 dir;
u8 num;
u8 type;
u8 mult;
u8 bMaxBurst;
u16 wMaxPacketSize;
int interval;
int free_trbs;
int num_trbs;
int alloc_ring_size;
u8 pcs;
u8 ccs;
int enqueue;
int dequeue;
u8 trb_burst_size;
unsigned int wa1_set:1 ;
struct cdns3_trb *wa1_trb;
unsigned int wa1_trb_index;
unsigned int wa1_cycle_bit:1 ;
/* Stream related */
unsigned int use_streams:1 ;
unsigned int prime_flag:1 ;
u32 ep_sts_pending;
u16 last_stream_id;
u16 pending_tdl;
unsigned int stream_sg_idx;
};
/**
* struct cdns3_aligned_buf - represent aligned buffer used for DMA transfer
* @ buf : aligned to 8 bytes data buffer . Buffer address used in
* TRB shall be aligned to 8 .
* @ dma : dma address
* @ size : size of buffer
* @ in_use : inform if this buffer is associated with usb_request
* @ list : used to adding instance of this object to list
*/
struct cdns3_aligned_buf {
void *buf;
dma_addr_t dma;
u32 size;
enum dma_data_direction dir;
unsigned in_use:1 ;
struct list_head list;
};
/**
* struct cdns3_request - extended device side representation of usb_request
* object .
* @ request : generic usb_request object describing single I / O request .
* @ priv_ep : extended representation of usb_ep object
* @ trb : the first TRB association with this request
* @ start_trb : number of the first TRB in transfer ring
* @ end_trb : number of the last TRB in transfer ring
* @ aligned_buf : object holds information about aligned buffer associated whit
* this endpoint
* @ flags : flag specifying special usage of request
* @ list : used by internally allocated request to add to wa2_descmiss_req_list .
* @ finished_trb : number of trb has already finished per request
* @ num_of_trb : how many trbs in this request
*/
struct cdns3_request {
struct usb_request request;
struct cdns3_endpoint *priv_ep;
struct cdns3_trb *trb;
int start_trb;
int end_trb;
struct cdns3_aligned_buf *aligned_buf;
#define REQUEST_PENDING BIT(0 )
#define REQUEST_INTERNAL BIT(1 )
#define REQUEST_INTERNAL_CH BIT(2 )
#define REQUEST_ZLP BIT(3 )
#define REQUEST_UNALIGNED BIT(4 )
u32 flags;
struct list_head list;
int finished_trb;
int num_of_trb;
};
#define to_cdns3_request(r) (container_of(r, struct cdns3_request, request))
/*Stages used during enumeration process.*/
#define CDNS3_SETUP_STAGE 0 x0
#define CDNS3_DATA_STAGE 0 x1
#define CDNS3_STATUS_STAGE 0 x2
/**
* struct cdns3_device - represent USB device .
* @ dev : pointer to device structure associated whit this controller
* @ sysdev : pointer to the DMA capable device
* @ gadget : device side representation of the peripheral controller
* @ gadget_driver : pointer to the gadget driver
* @ dev_ver : device controller version .
* @ lock : for synchronizing
* @ regs : base address for device side registers
* @ setup_buf : used while processing usb control requests
* @ setup_dma : dma address for setup_buf
* @ zlp_buf - zlp buffer
* @ ep0_stage : ep0 stage during enumeration process .
* @ ep0_data_dir : direction for control transfer
* @ eps : array of pointers to all endpoints with exclusion ep0
* @ aligned_buf_list : list of aligned buffers internally allocated by driver
* @ aligned_buf_wq : workqueue freeing no longer used aligned buf .
* @ selected_ep : actually selected endpoint . It ' s used only to improve
* performance .
* @ isoch_delay : value from Set Isoch Delay request . Only valid on SS / SSP .
* @ u1_allowed : allow device transition to u1 state
* @ u2_allowed : allow device transition to u2 state
* @ is_selfpowered : device is self powered
* @ setup_pending : setup packet is processing by gadget driver
* @ hw_configured_flag : hardware endpoint configuration was set .
* @ wake_up_flag : allow device to remote up the host
* @ status_completion_no_call : indicate that driver is waiting for status s
* stage completion . It ' s used in deferred SET_CONFIGURATION request .
* @ onchip_buffers : number of available on - chip buffers .
* @ onchip_used_size : actual size of on - chip memory assigned to endpoints .
* @ pending_status_wq : workqueue handling status stage for deferred requests .
* @ pending_status_request : request for which status stage was deferred
*/
struct cdns3_device {
struct device *dev;
struct device *sysdev;
struct usb_gadget gadget;
struct usb_gadget_driver *gadget_driver;
#define CDNS_REVISION_V0 0 x00024501
#define CDNS_REVISION_V1 0 x00024509
u32 dev_ver;
/* generic spin-lock for drivers */
spinlock_t lock;
struct cdns3_usb_regs __iomem *regs;
struct dma_pool *eps_dma_pool;
struct usb_ctrlrequest *setup_buf;
dma_addr_t setup_dma;
void *zlp_buf;
u8 ep0_stage;
int ep0_data_dir;
struct cdns3_endpoint *eps[CDNS3_ENDPOINTS_MAX_COUNT];
struct list_head aligned_buf_list;
struct work_struct aligned_buf_wq;
u32 selected_ep;
u16 isoch_delay;
unsigned wait_for_setup:1 ;
unsigned u1_allowed:1 ;
unsigned u2_allowed:1 ;
unsigned is_selfpowered:1 ;
unsigned setup_pending:1 ;
unsigned hw_configured_flag:1 ;
unsigned wake_up_flag:1 ;
unsigned status_completion_no_call:1 ;
unsigned using_streams:1 ;
int out_mem_is_allocated;
struct work_struct pending_status_wq;
struct usb_request *pending_status_request;
/*in KB */
u16 onchip_buffers;
u16 onchip_used_size;
u16 ep_buf_size;
u16 ep_iso_burst;
};
void cdns3_set_register_bit(void __iomem *ptr, u32 mask);
dma_addr_t cdns3_trb_virt_to_dma(struct cdns3_endpoint *priv_ep,
struct cdns3_trb *trb);
enum usb_device_speed cdns3_get_speed(struct cdns3_device *priv_dev);
void cdns3_pending_setup_status_handler(struct work_struct *work);
void cdns3_hw_reset_eps_config(struct cdns3_device *priv_dev);
void cdns3_set_hw_configuration(struct cdns3_device *priv_dev);
void cdns3_select_ep(struct cdns3_device *priv_dev, u32 ep);
void cdns3_allow_enable_l1(struct cdns3_device *priv_dev, int enable);
struct usb_request *cdns3_next_request(struct list_head *list);
void cdns3_rearm_transfer(struct cdns3_endpoint *priv_ep, u8 rearm);
int cdns3_allocate_trb_pool(struct cdns3_endpoint *priv_ep);
u8 cdns3_ep_addr_to_index(u8 ep_addr);
int cdns3_gadget_ep_set_wedge(struct usb_ep *ep);
int cdns3_gadget_ep_set_halt(struct usb_ep *ep, int value);
void __cdns3_gadget_ep_set_halt(struct cdns3_endpoint *priv_ep);
int __cdns3_gadget_ep_clear_halt(struct cdns3_endpoint *priv_ep);
struct usb_request *cdns3_gadget_ep_alloc_request(struct usb_ep *ep,
gfp_t gfp_flags);
void cdns3_gadget_ep_free_request(struct usb_ep *ep,
struct usb_request *request);
int cdns3_gadget_ep_dequeue(struct usb_ep *ep, struct usb_request *request);
void cdns3_gadget_giveback(struct cdns3_endpoint *priv_ep,
struct cdns3_request *priv_req,
int status);
int cdns3_init_ep0(struct cdns3_device *priv_dev,
struct cdns3_endpoint *priv_ep);
void cdns3_ep0_config(struct cdns3_device *priv_dev);
int cdns3_ep_config(struct cdns3_endpoint *priv_ep, bool enable);
void cdns3_check_ep0_interrupt_proceed(struct cdns3_device *priv_dev, int dir);
int __cdns3_gadget_wakeup(struct cdns3_device *priv_dev);
#endif /* __LINUX_CDNS3_GADGET */
Messung V0.5 in Prozent C=85 H=99 G=92
¤ Dauer der Verarbeitung: 0.41 Sekunden
(vorverarbeitet am 2026-09-28)
¤
*© Formatika GbR, Deutschland
2026-10-10
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