--- /dev/null
+/*
+ * Copyright (C) 2016 Cadence Design Systems - http://www.cadence.com
+ * Copyright 2018 NXP
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __REG_USBSS_DEV_ADDR_MAP_MACRO_H__
+#define __REG_USBSS_DEV_ADDR_MAP_MACRO_H__
+
+
+/* macros for BlueprintGlobalNameSpace::USB_CONF */
+#ifndef __USB_CONF_MACRO__
+#define __USB_CONF_MACRO__
+
+/* macros for field CFGRST */
+#define USB_CONF__CFGRST__MASK 0x00000001U
+#define USB_CONF__CFGSET__MASK 0x00000002U
+#define USB_CONF__USB3DIS__MASK 0x00000008U
+#define USB_CONF__DEVEN__MASK 0x00004000U
+#define USB_CONF__DEVDS__MASK 0x00008000U
+#define USB_CONF__L1EN__MASK 0x00010000U
+#define USB_CONF__L1DS__MASK 0x00020000U
+#define USB_CONF__CLK2OFFDS__MASK 0x00080000U
+#define USB_CONF__U1EN__MASK 0x01000000U
+#define USB_CONF__U1DS__MASK 0x02000000U
+#define USB_CONF__U2EN__MASK 0x04000000U
+#define USB_CONF__U2DS__MASK 0x08000000U
+#endif /* __USB_CONF_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_conf */
+#ifndef __USB_STS_MACRO__
+#define __USB_STS_MACRO__
+
+/* macros for field CFGSTS */
+#define USB_STS__CFGSTS__MASK 0x00000001U
+#define USB_STS__USBSPEED__READ(src) (((uint32_t)(src) & 0x00000070U) >> 4)
+
+/* macros for field ENDIAN_MIRROR */
+#define USB_STS__LPMST__READ(src) (((uint32_t)(src) & 0x000c0000U) >> 18)
+
+/* macros for field USB2CONS */
+#define USB_STS__U1ENS__MASK 0x01000000U
+#define USB_STS__U2ENS__MASK 0x02000000U
+#define USB_STS__LST__READ(src) (((uint32_t)(src) & 0x3c000000U) >> 26)
+
+/* macros for field DMAOFF */
+#endif /* __USB_STS_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_sts */
+#ifndef __USB_CMD_MACRO__
+#define __USB_CMD_MACRO__
+
+/* macros for field SET_ADDR */
+#define USB_CMD__SET_ADDR__MASK 0x00000001U
+#define USB_CMD__STMODE 0x00000200U
+#define USB_CMD__TMODE_SEL(x) (x << 10)
+#define USB_CMD__FADDR__WRITE(src) (((uint32_t)(src) << 1) & 0x000000feU)
+#endif /* __USB_CMD_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_cmd */
+#ifndef __USB_ITPN_MACRO__
+#define __USB_ITPN_MACRO__
+
+/* macros for field ITPN */
+#endif /* __USB_ITPN_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_iptn */
+#ifndef __USB_LPM_MACRO__
+#define __USB_LPM_MACRO__
+
+/* macros for field HIRD */
+#endif /* __USB_LPM_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_lpm */
+#ifndef __USB_IEN_MACRO__
+#define __USB_IEN_MACRO__
+
+/* macros for field CONIEN */
+#define USB_IEN__CONIEN__MASK 0x00000001U
+#define USB_IEN__DISIEN__MASK 0x00000002U
+#define USB_IEN__UWRESIEN__MASK 0x00000004U
+#define USB_IEN__UHRESIEN__MASK 0x00000008U
+#define USB_IEN__U3EXTIEN__MASK 0x00000020U
+#define USB_IEN__CON2IEN__MASK 0x00010000U
+#define USB_IEN__U2RESIEN__MASK 0x00040000U
+#define USB_IEN__L2ENTIEN__MASK 0x00100000U
+#define USB_IEN__L2EXTIEN__MASK 0x00200000U
+#endif /* __USB_IEN_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_ien */
+#ifndef __USB_ISTS_MACRO__
+#define __USB_ISTS_MACRO__
+
+/* macros for field CONI */
+#define USB_ISTS__CONI__SHIFT 0
+#define USB_ISTS__DISI__SHIFT 1
+#define USB_ISTS__UWRESI__SHIFT 2
+#define USB_ISTS__UHRESI__SHIFT 3
+#define USB_ISTS__U3EXTI__SHIFT 5
+#define USB_ISTS__CON2I__SHIFT 16
+#define USB_ISTS__DIS2I__SHIFT 17
+#define USB_ISTS__DIS2I__MASK 0x00020000U
+#define USB_ISTS__U2RESI__SHIFT 18
+#define USB_ISTS__L2ENTI__SHIFT 20
+#define USB_ISTS__L2EXTI__SHIFT 21
+#endif /* __USB_ISTS_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_ists */
+#ifndef __EP_SEL_MACRO__
+#define __EP_SEL_MACRO__
+
+/* macros for field EPNO */
+#endif /* __EP_SEL_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.ep_sel */
+#ifndef __EP_TRADDR_MACRO__
+#define __EP_TRADDR_MACRO__
+
+/* macros for field TRADDR */
+#define EP_TRADDR__TRADDR__WRITE(src) ((uint32_t)(src) & 0xffffffffU)
+#endif /* __EP_TRADDR_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.ep_traddr */
+#ifndef __EP_CFG_MACRO__
+#define __EP_CFG_MACRO__
+
+/* macros for field ENABLE */
+#define EP_CFG__ENABLE__MASK 0x00000001U
+#define EP_CFG__EPTYPE__WRITE(src) (((uint32_t)(src) << 1) & 0x00000006U)
+#define EP_CFG__MAXBURST__WRITE(src) (((uint32_t)(src) << 8) & 0x00000f00U)
+#define EP_CFG__MAXPKTSIZE__WRITE(src) (((uint32_t)(src) << 16) & 0x07ff0000U)
+#define EP_CFG__BUFFERING__WRITE(src) (((uint32_t)(src) << 27) & 0xf8000000U)
+#endif /* __EP_CFG_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.ep_cfg */
+#ifndef __EP_CMD_MACRO__
+#define __EP_CMD_MACRO__
+
+/* macros for field EPRST */
+#define EP_CMD__EPRST__MASK 0x00000001U
+#define EP_CMD__SSTALL__MASK 0x00000002U
+#define EP_CMD__CSTALL__MASK 0x00000004U
+#define EP_CMD__ERDY__MASK 0x00000008U
+#define EP_CMD__REQ_CMPL__MASK 0x00000020U
+#define EP_CMD__DRDY__MASK 0x00000040U
+#define EP_CMD__DFLUSH__MASK 0x00000080U
+#endif /* __EP_CMD_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.ep_cmd */
+#ifndef __EP_STS_MACRO__
+#define __EP_STS_MACRO__
+
+/* macros for field SETUP */
+#define EP_STS__SETUP__MASK 0x00000001U
+#define EP_STS__STALL__MASK 0x00000002U
+#define EP_STS__IOC__MASK 0x00000004U
+#define EP_STS__ISP__MASK 0x00000008U
+#define EP_STS__DESCMIS__MASK 0x00000010U
+#define EP_STS__TRBERR__MASK 0x00000080U
+#define EP_STS__NRDY__MASK 0x00000100U
+#define EP_STS__DBUSY__MASK 0x00000200U
+#define EP_STS__OUTSMM__MASK 0x00004000U
+#define EP_STS__ISOERR__MASK 0x00008000U
+#endif /* __EP_STS_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.ep_sts */
+#ifndef __EP_STS_SID_MACRO__
+#define __EP_STS_SID_MACRO__
+
+/* macros for field SID */
+#endif /* __EP_STS_SID_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.ep_sts_sid */
+#ifndef __EP_STS_EN_MACRO__
+#define __EP_STS_EN_MACRO__
+
+/* macros for field SETUPEN */
+#define EP_STS_EN__SETUPEN__MASK 0x00000001U
+#define EP_STS_EN__DESCMISEN__MASK 0x00000010U
+#define EP_STS_EN__TRBERREN__MASK 0x00000080U
+#endif /* __EP_STS_EN_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.ep_sts_en */
+#ifndef __DRBL_MACRO__
+#define __DRBL_MACRO__
+
+/* macros for field DRBL0O */
+#endif /* __DRBL_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.drbl */
+#ifndef __EP_IEN_MACRO__
+#define __EP_IEN_MACRO__
+
+/* macros for field EOUTEN0 */
+#define EP_IEN__EOUTEN0__MASK 0x00000001U
+#define EP_IEN__EINEN0__MASK 0x00010000U
+#endif /* __EP_IEN_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.ep_ien */
+#ifndef __EP_ISTS_MACRO__
+#define __EP_ISTS_MACRO__
+
+/* macros for field EOUT0 */
+#define EP_ISTS__EOUT0__MASK 0x00000001U
+#define EP_ISTS__EIN0__MASK 0x00010000U
+#endif /* __EP_ISTS_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.ep_ists */
+#ifndef __USB_PWR_MACRO__
+#define __USB_PWR_MACRO__
+
+/* macros for field PSO_EN */
+#endif /* __USB_PWR_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_pwr */
+#ifndef __USB_CONF2_MACRO__
+#define __USB_CONF2_MACRO__
+
+/* macros for field AHB_RETRY_EN */
+#endif /* __USB_CONF2_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_conf2 */
+#ifndef __USB_CAP1_MACRO__
+#define __USB_CAP1_MACRO__
+
+/* macros for field SFR_TYPE */
+#endif /* __USB_CAP1_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_cap1 */
+#ifndef __USB_CAP2_MACRO__
+#define __USB_CAP2_MACRO__
+
+/* macros for field ACTUAL_MEM_SIZE */
+#endif /* __USB_CAP2_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_cap2 */
+#ifndef __USB_CAP3_MACRO__
+#define __USB_CAP3_MACRO__
+
+/* macros for field EPOUT_N */
+#endif /* __USB_CAP3_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_cap3 */
+#ifndef __USB_CAP4_MACRO__
+#define __USB_CAP4_MACRO__
+
+/* macros for field EPOUTI_N */
+#endif /* __USB_CAP4_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_cap4 */
+#ifndef __USB_CAP5_MACRO__
+#define __USB_CAP5_MACRO__
+
+/* macros for field EPOUTI_N */
+#endif /* __USB_CAP5_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_cap5 */
+#ifndef __USB_CAP6_MACRO__
+#define __USB_CAP6_MACRO__
+
+/* macros for field VERSION */
+#endif /* __USB_CAP6_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_cap6 */
+#ifndef __USB_CPKT1_MACRO__
+#define __USB_CPKT1_MACRO__
+
+/* macros for field CPKT1 */
+#endif /* __USB_CPKT1_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_cpkt1 */
+#ifndef __USB_CPKT2_MACRO__
+#define __USB_CPKT2_MACRO__
+
+/* macros for field CPKT2 */
+#endif /* __USB_CPKT2_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_cpkt2 */
+#ifndef __USB_CPKT3_MACRO__
+#define __USB_CPKT3_MACRO__
+
+/* macros for field CPKT3 */
+#endif /* __USB_CPKT3_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.usb_cpkt3 */
+#ifndef __CFG_REG1_MACRO__
+#define __CFG_REG1_MACRO__
+
+/* macros for field DEBOUNCER_CNT */
+#endif /* __CFG_REG1_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg1 */
+#ifndef __DBG_LINK1_MACRO__
+#define __DBG_LINK1_MACRO__
+
+/* macros for field LFPS_MIN_DET_U1_EXIT */
+#define DBG_LINK1__LFPS_MIN_GEN_U1_EXIT__WRITE(src) \
+ (((uint32_t)(src)\
+ << 8) & 0x0000ff00U)
+#define DBG_LINK1__LFPS_MIN_GEN_U1_EXIT_SET__MASK 0x02000000U
+#endif /* __DBG_LINK1_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.dbg_link1 */
+#ifndef __DBG_LINK2_MACRO__
+#define __DBG_LINK2_MACRO__
+
+/* macros for field RXEQTR_AVAL */
+#endif /* __DBG_LINK2_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.dbg_link2 */
+#ifndef __CFG_REG4_MACRO__
+#define __CFG_REG4_MACRO__
+
+/* macros for field RXDETECT_QUIET_TIMEOUT */
+#endif /* __CFG_REG4_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg4 */
+#ifndef __CFG_REG5_MACRO__
+#define __CFG_REG5_MACRO__
+
+/* macros for field U3_HDSK_FAIL_TIMEOUT */
+#endif /* __CFG_REG5_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg5 */
+#ifndef __CFG_REG6_MACRO__
+#define __CFG_REG6_MACRO__
+
+/* macros for field SSINACTIVE_QUIET_TIMEOUT */
+#endif /* __CFG_REG6_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg6 */
+#ifndef __CFG_REG7_MACRO__
+#define __CFG_REG7_MACRO__
+
+/* macros for field POLLING_LFPS_TIMEOUT */
+#endif /* __CFG_REG7_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg7 */
+#ifndef __CFG_REG8_MACRO__
+#define __CFG_REG8_MACRO__
+
+/* macros for field POLLING_ACTIVE_TIMEOUT */
+#endif /* __CFG_REG8_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg8 */
+#ifndef __CFG_REG9_MACRO__
+#define __CFG_REG9_MACRO__
+
+/* macros for field POLLING_IDLE_TIMEOUT */
+#endif /* __CFG_REG9_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg9 */
+#ifndef __CFG_REG10_MACRO__
+#define __CFG_REG10_MACRO__
+
+/* macros for field POLLING_CONF_TIMEOUT */
+#endif /* __CFG_REG10_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg10 */
+#ifndef __CFG_REG11_MACRO__
+#define __CFG_REG11_MACRO__
+
+/* macros for field RECOVERY_ACTIVE_TIMEOUT */
+#endif /* __CFG_REG11_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg11 */
+#ifndef __CFG_REG12_MACRO__
+#define __CFG_REG12_MACRO__
+
+/* macros for field RECOVERY_CONF_TIMEOUT */
+#endif /* __CFG_REG12_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg12 */
+#ifndef __CFG_REG13_MACRO__
+#define __CFG_REG13_MACRO__
+
+/* macros for field RECOVERY_IDLE_TIMEOUT */
+#endif /* __CFG_REG13_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg13 */
+#ifndef __CFG_REG14_MACRO__
+#define __CFG_REG14_MACRO__
+
+/* macros for field HOTRESET_ACTIVE_TIMEOUT */
+#endif /* __CFG_REG14_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg14 */
+#ifndef __CFG_REG15_MACRO__
+#define __CFG_REG15_MACRO__
+
+/* macros for field HOTRESET_EXIT_TIMEOUT */
+#endif /* __CFG_REG15_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg15 */
+#ifndef __CFG_REG16_MACRO__
+#define __CFG_REG16_MACRO__
+
+/* macros for field LFPS_PING_REPEAT */
+#endif /* __CFG_REG16_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg16 */
+#ifndef __CFG_REG17_MACRO__
+#define __CFG_REG17_MACRO__
+
+/* macros for field PENDING_HP_TIMEOUT */
+#endif /* __CFG_REG17_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg17 */
+#ifndef __CFG_REG18_MACRO__
+#define __CFG_REG18_MACRO__
+
+/* macros for field CREDIT_HP_TIMEOUT */
+#endif /* __CFG_REG18_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg18 */
+#ifndef __CFG_REG19_MACRO__
+#define __CFG_REG19_MACRO__
+
+/* macros for field LUP_TIMEOUT */
+#endif /* __CFG_REG19_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg19 */
+#ifndef __CFG_REG20_MACRO__
+#define __CFG_REG20_MACRO__
+
+/* macros for field LDN_TIMEOUT */
+#endif /* __CFG_REG20_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg20 */
+#ifndef __CFG_REG21_MACRO__
+#define __CFG_REG21_MACRO__
+
+/* macros for field PM_LC_TIMEOUT */
+#endif /* __CFG_REG21_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg21 */
+#ifndef __CFG_REG22_MACRO__
+#define __CFG_REG22_MACRO__
+
+/* macros for field PM_ENTRY_TIMEOUT */
+#endif /* __CFG_REG22_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg22 */
+#ifndef __CFG_REG23_MACRO__
+#define __CFG_REG23_MACRO__
+
+/* macros for field UX_EXIT_TIMEOUT */
+#endif /* __CFG_REG23_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg23 */
+#ifndef __CFG_REG24_MACRO__
+#define __CFG_REG24_MACRO__
+
+/* macros for field LFPS_DET_RESET_MIN */
+#endif /* __CFG_REG24_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg24 */
+#ifndef __CFG_REG25_MACRO__
+#define __CFG_REG25_MACRO__
+
+/* macros for field LFPS_DET_RESET_MAX */
+#endif /* __CFG_REG25_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg25 */
+#ifndef __CFG_REG26_MACRO__
+#define __CFG_REG26_MACRO__
+
+/* macros for field LFPS_DET_POLLING_MIN */
+#endif /* __CFG_REG26_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg26 */
+#ifndef __CFG_REG27_MACRO__
+#define __CFG_REG27_MACRO__
+
+/* macros for field LFPS_DET_POLLING_MAX */
+#endif /* __CFG_REG27_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg27 */
+#ifndef __CFG_REG28_MACRO__
+#define __CFG_REG28_MACRO__
+
+/* macros for field LFPS_DET_PING_MIN */
+#endif /* __CFG_REG28_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg28 */
+#ifndef __CFG_REG29_MACRO__
+#define __CFG_REG29_MACRO__
+
+/* macros for field LFPS_DET_PING_MAX */
+#endif /* __CFG_REG29_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg29 */
+#ifndef __CFG_REG30_MACRO__
+#define __CFG_REG30_MACRO__
+
+/* macros for field LFPS_DET_U1EXIT_MIN */
+#endif /* __CFG_REG30_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg30 */
+#ifndef __CFG_REG31_MACRO__
+#define __CFG_REG31_MACRO__
+
+/* macros for field LFPS_DET_U1EXIT_MAX */
+#endif /* __CFG_REG31_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg31 */
+#ifndef __CFG_REG32_MACRO__
+#define __CFG_REG32_MACRO__
+
+/* macros for field LFPS_DET_U2EXIT_MIN */
+#endif /* __CFG_REG32_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg32 */
+#ifndef __CFG_REG33_MACRO__
+#define __CFG_REG33_MACRO__
+
+/* macros for field LFPS_DET_U2EXIT_MAX */
+#endif /* __CFG_REG33_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg33 */
+#ifndef __CFG_REG34_MACRO__
+#define __CFG_REG34_MACRO__
+
+/* macros for field LFPS_DET_U3EXIT_MIN */
+#endif /* __CFG_REG34_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg34 */
+#ifndef __CFG_REG35_MACRO__
+#define __CFG_REG35_MACRO__
+
+/* macros for field LFPS_DET_U3EXIT_MAX */
+#endif /* __CFG_REG35_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg35 */
+#ifndef __CFG_REG36_MACRO__
+#define __CFG_REG36_MACRO__
+
+/* macros for field LFPS_GEN_PING */
+#endif /* __CFG_REG36_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg36 */
+#ifndef __CFG_REG37_MACRO__
+#define __CFG_REG37_MACRO__
+
+/* macros for field LFPS_GEN_POLLING */
+#endif /* __CFG_REG37_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg37 */
+#ifndef __CFG_REG38_MACRO__
+#define __CFG_REG38_MACRO__
+
+/* macros for field LFPS_GEN_U1EXIT */
+#endif /* __CFG_REG38_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg38 */
+#ifndef __CFG_REG39_MACRO__
+#define __CFG_REG39_MACRO__
+
+/* macros for field LFPS_GEN_U3EXIT */
+#endif /* __CFG_REG39_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg39 */
+#ifndef __CFG_REG40_MACRO__
+#define __CFG_REG40_MACRO__
+
+/* macros for field LFPS_MIN_GEN_U1EXIT */
+#endif /* __CFG_REG40_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg40 */
+#ifndef __CFG_REG41_MACRO__
+#define __CFG_REG41_MACRO__
+
+/* macros for field LFPS_MIN_GEN_U2EXIT */
+#endif /* __CFG_REG41_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg41 */
+#ifndef __CFG_REG42_MACRO__
+#define __CFG_REG42_MACRO__
+
+/* macros for field LFPS_POLLING_REPEAT */
+#endif /* __CFG_REG42_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg42 */
+#ifndef __CFG_REG43_MACRO__
+#define __CFG_REG43_MACRO__
+
+/* macros for field LFPS_POLLING_MAX_TREPEAT */
+#endif /* __CFG_REG43_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg43 */
+#ifndef __CFG_REG44_MACRO__
+#define __CFG_REG44_MACRO__
+
+/* macros for field LFPS_POLLING_MIN_TREPEAT */
+#endif /* __CFG_REG44_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg44 */
+#ifndef __CFG_REG45_MACRO__
+#define __CFG_REG45_MACRO__
+
+/* macros for field ITP_WAKEUP_TIMEOUT */
+#endif /* __CFG_REG45_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg45 */
+#ifndef __CFG_REG46_MACRO__
+#define __CFG_REG46_MACRO__
+
+/* macros for field TSEQ_QUANTITY */
+#endif /* __CFG_REG46_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg46 */
+#ifndef __CFG_REG47_MACRO__
+#define __CFG_REG47_MACRO__
+
+/* macros for field ERDY_TIMEOUT_CNT */
+#endif /* __CFG_REG47_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg47 */
+#ifndef __CFG_REG48_MACRO__
+#define __CFG_REG48_MACRO__
+
+/* macros for field TWTRSTFS_J_CNT */
+#endif /* __CFG_REG48_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg48 */
+#ifndef __CFG_REG49_MACRO__
+#define __CFG_REG49_MACRO__
+
+/* macros for field TUCH_CNT */
+#endif /* __CFG_REG49_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg49 */
+#ifndef __CFG_REG50_MACRO__
+#define __CFG_REG50_MACRO__
+
+/* macros for field TWAITCHK_CNT */
+#endif /* __CFG_REG50_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg50 */
+#ifndef __CFG_REG51_MACRO__
+#define __CFG_REG51_MACRO__
+
+/* macros for field TWTFS_CNT */
+#endif /* __CFG_REG51_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg51 */
+#ifndef __CFG_REG52_MACRO__
+#define __CFG_REG52_MACRO__
+
+/* macros for field TWTREV_CNT */
+#endif /* __CFG_REG52_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg52 */
+#ifndef __CFG_REG53_MACRO__
+#define __CFG_REG53_MACRO__
+
+/* macros for field TWTRSTHS_CNT */
+#endif /* __CFG_REG53_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg53 */
+#ifndef __CFG_REG54_MACRO__
+#define __CFG_REG54_MACRO__
+
+/* macros for field TWTRSM_CNT */
+#endif /* __CFG_REG54_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg54 */
+#ifndef __CFG_REG55_MACRO__
+#define __CFG_REG55_MACRO__
+
+/* macros for field TDRSMUP_CNT */
+#endif /* __CFG_REG55_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg55 */
+#ifndef __CFG_REG56_MACRO__
+#define __CFG_REG56_MACRO__
+
+/* macros for field TOUTHS_CNT */
+#endif /* __CFG_REG56_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg56 */
+#ifndef __CFG_REG57_MACRO__
+#define __CFG_REG57_MACRO__
+
+/* macros for field LFPS_DEB_WIDTH */
+#endif /* __CFG_REG57_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg57 */
+#ifndef __CFG_REG58_MACRO__
+#define __CFG_REG58_MACRO__
+
+/* macros for field LFPS_GEN_U2EXIT */
+#endif /* __CFG_REG58_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg58 */
+#ifndef __CFG_REG59_MACRO__
+#define __CFG_REG59_MACRO__
+
+/* macros for field LFPS_MIN_GEN_U3EXIT */
+#endif /* __CFG_REG59_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg59 */
+#ifndef __CFG_REG60_MACRO__
+#define __CFG_REG60_MACRO__
+
+/* macros for field PORT_CONFIG_TIMEOUT */
+#endif /* __CFG_REG60_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg60 */
+#ifndef __CFG_REG61_MACRO__
+#define __CFG_REG61_MACRO__
+
+/* macros for field LFPS_POL_LFPS_TO_RXEQ */
+#endif /* __CFG_REG61_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg61 */
+#ifndef __CFG_REG62_MACRO__
+#define __CFG_REG62_MACRO__
+
+/* macros for field PHY_TX_LATENCY */
+#endif /* __CFG_REG62_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg62 */
+#ifndef __CFG_REG63_MACRO__
+#define __CFG_REG63_MACRO__
+
+/* macros for field U2_INACTIVITY_TMOUT */
+#endif /* __CFG_REG63_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg63 */
+#ifndef __CFG_REG64_MACRO__
+#define __CFG_REG64_MACRO__
+
+/* macros for field TFILTSE0 */
+#endif /* __CFG_REG64_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg64 */
+#ifndef __CFG_REG65_MACRO__
+#define __CFG_REG65_MACRO__
+
+/* macros for field TFILT */
+#endif /* __CFG_REG65_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg65 */
+#ifndef __CFG_REG66_MACRO__
+#define __CFG_REG66_MACRO__
+
+/* macros for field TWTRSTFS_SE0 */
+#endif /* __CFG_REG66_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.cfg_reg66 */
+#ifndef __DMA_AXI_CTRL_MACRO__
+#define __DMA_AXI_CTRL_MACRO__
+
+/* macros for field MAWPROT */
+#endif /* __DMA_AXI_CTRL_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.dma_axi_ctrl */
+#ifndef __DMA_AXI_ID_MACRO__
+#define __DMA_AXI_ID_MACRO__
+
+/* macros for field MAW_ID */
+#endif /* __DMA_AXI_ID_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.dma_axi_id */
+#ifndef __DMA_AXI_CAP_MACRO__
+#define __DMA_AXI_CAP_MACRO__
+
+/* macros for field RESERVED0 */
+#endif /* __DMA_AXI_CAP_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.dma_axi_cap */
+#ifndef __DMA_AXI_CTRL0_MACRO__
+#define __DMA_AXI_CTRL0_MACRO__
+
+/* macros for field B_MAX */
+#endif /* __DMA_AXI_CTRL0_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.dma_axi_ctrl0 */
+#ifndef __DMA_AXI_CTRL1_MACRO__
+#define __DMA_AXI_CTRL1_MACRO__
+
+/* macros for field ROT */
+#endif /* __DMA_AXI_CTRL1_MACRO__ */
+
+
+/* macros for usbss_dev_register_block.dma_axi_ctrl1 */
+#endif /* __REG_USBSS_DEV_ADDR_MAP_MACRO_H__ */
--- /dev/null
+/*
+ * Copyright (C) 2016 Cadence Design Systems - https://www.cadence.com/
+ * Copyright 2018 NXP
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+#include <common.h>
+#include <malloc.h>
+#include <asm/dma-mapping.h>
+#include <asm/io.h>
+#include <usb/lin_gadget_compat.h>
+#include <linux/bug.h>
+#include <linux/list.h>
+#include <linux/compat.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/composite.h>
+
+#include "linux-compat.h"
+#include "core.h"
+#include "gadget-export.h"
+#include "gadget.h"
+#include "io.h"
+
+/*-------------------------------------------------------------------------*/
+/* Function declarations */
+
+static void select_ep(struct usb_ss_dev *usb_ss, u32 ep);
+static int usb_ss_allocate_trb_pool(struct usb_ss_endpoint *usb_ss_ep);
+static void cdns_ep_stall_flush(struct usb_ss_endpoint *usb_ss_ep);
+static void cdns_ep0_config(struct usb_ss_dev *usb_ss);
+static void cdns_gadget_unconfig(struct usb_ss_dev *usb_ss);
+static void cdns_ep0_run_transfer(struct usb_ss_dev *usb_ss,
+ dma_addr_t dma_addr, unsigned int length, int erdy);
+static int cdns_ep_run_transfer(struct usb_ss_endpoint *usb_ss_ep);
+static int cdns_get_setup_ret(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req);
+static int cdns_req_ep0_set_address(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req);
+static int cdns_req_ep0_get_status(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req);
+static int cdns_req_ep0_handle_feature(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req, int set);
+static int cdns_req_ep0_set_sel(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req);
+static int cdns_req_ep0_set_isoch_delay(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req);
+static int cdns_req_ep0_set_configuration(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req);
+static int cdns_ep0_standard_request(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req);
+static void cdns_ep0_setup_phase(struct usb_ss_dev *usb_ss);
+static int cdns_check_ep_interrupt_proceed(struct usb_ss_endpoint *usb_ss_ep);
+static void cdns_check_ep0_interrupt_proceed(struct usb_ss_dev *usb_ss,
+ int dir);
+static void cdns_check_usb_interrupt_proceed(struct usb_ss_dev *usb_ss,
+ u32 usb_ists);
+#ifdef CDNS_THREADED_IRQ_HANDLING
+static irqreturn_t cdns_irq_handler(int irq, void *_usb_ss);
+#endif
+static int usb_ss_gadget_ep0_enable(struct usb_ep *ep,
+ const struct usb_endpoint_descriptor *desc);
+static int usb_ss_gadget_ep0_disable(struct usb_ep *ep);
+static int usb_ss_gadget_ep0_set_halt(struct usb_ep *ep, int value);
+static int usb_ss_gadget_ep0_queue(struct usb_ep *ep,
+ struct usb_request *request, gfp_t gfp_flags);
+static int usb_ss_gadget_ep_enable(struct usb_ep *ep,
+ const struct usb_endpoint_descriptor *desc);
+static int usb_ss_gadget_ep_disable(struct usb_ep *ep);
+static struct usb_request *usb_ss_gadget_ep_alloc_request(struct usb_ep *ep,
+ gfp_t gfp_flags);
+static void usb_ss_gadget_ep_free_request(struct usb_ep *ep,
+ struct usb_request *request);
+static int usb_ss_gadget_ep_queue(struct usb_ep *ep,
+ struct usb_request *request, gfp_t gfp_flags);
+static int usb_ss_gadget_ep_dequeue(struct usb_ep *ep,
+ struct usb_request *request);
+static int usb_ss_gadget_ep_set_halt(struct usb_ep *ep, int value);
+static int usb_ss_gadget_ep_set_wedge(struct usb_ep *ep);
+static int usb_ss_gadget_get_frame(struct usb_gadget *gadget);
+static int usb_ss_gadget_wakeup(struct usb_gadget *gadget);
+static int usb_ss_gadget_set_selfpowered(struct usb_gadget *gadget,
+ int is_selfpowered);
+static int usb_ss_gadget_pullup(struct usb_gadget *gadget, int is_on);
+static int usb_ss_gadget_udc_start(struct usb_gadget *gadget,
+ struct usb_gadget_driver *driver);
+static int usb_ss_gadget_udc_stop(struct usb_gadget *gadget);
+static int usb_ss_init_ep(struct usb_ss_dev *usb_ss);
+static int usb_ss_init_ep0(struct usb_ss_dev *usb_ss);
+static void __cdns3_gadget_start(struct usb_ss_dev *usb_ss);
+static void cdns_prepare_setup_packet(struct usb_ss_dev *usb_ss);
+static void cdns_ep_config(struct usb_ss_endpoint *usb_ss_ep);
+
+static const char *const speed_names[] = {
+ [USB_SPEED_UNKNOWN] = "UNKNOWN",
+ [USB_SPEED_LOW] = "low-speed",
+ [USB_SPEED_FULL] = "full-speed",
+ [USB_SPEED_HIGH] = "high-speed",
+ [USB_SPEED_WIRELESS] = "wireless",
+ [USB_SPEED_SUPER] = "super-speed",
+};
+
+const char *usb_speed_string(enum usb_device_speed speed)
+{
+ if (speed < 0 || speed >= ARRAY_SIZE(speed_names))
+ speed = USB_SPEED_UNKNOWN;
+ return speed_names[speed];
+}
+
+static struct usb_endpoint_descriptor cdns3_gadget_ep0_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bmAttributes = USB_ENDPOINT_XFER_CONTROL,
+};
+
+static u32 gadget_readl(struct usb_ss_dev *usb_ss, uint32_t __iomem *reg)
+{
+ return cdns_readl(reg);
+}
+
+static void gadget_writel(struct usb_ss_dev *usb_ss,
+ uint32_t __iomem *reg, u32 value)
+{
+ cdns_writel(reg, value);
+}
+
+/**
+ * next_request - returns next request from list
+ * @list: list containing requests
+ *
+ * Returns request or NULL if no requests in list
+ */
+static struct usb_request *next_request(struct list_head *list)
+{
+ if (list_empty(list))
+ return NULL;
+ return list_first_entry(list, struct usb_request, list);
+}
+
+/**
+ * select_ep - selects endpoint
+ * @usb_ss: extended gadget object
+ * @ep: endpoint address
+ */
+static void select_ep(struct usb_ss_dev *usb_ss, u32 ep)
+{
+ if (!usb_ss || !usb_ss->regs) {
+ dev_err(&usb_ss->dev, "Failed to select endpoint!\n");
+ return;
+ }
+
+ gadget_writel(usb_ss, &usb_ss->regs->ep_sel, ep);
+}
+
+/**
+ * usb_ss_allocate_trb_pool - Allocates TRB's pool for selected endpoint
+ * @usb_ss_ep: extended endpoint object
+ *
+ * Function will return 0 on success or -ENOMEM on allocation error
+ */
+static int usb_ss_allocate_trb_pool(struct usb_ss_endpoint *usb_ss_ep)
+{
+ if (usb_ss_ep->trb_pool)
+ return 0;
+
+ usb_ss_ep->trb_pool = dma_alloc_coherent(
+ sizeof(struct usb_ss_trb) * USB_SS_TRBS_NUM,
+ (unsigned long *)&usb_ss_ep->trb_pool_dma);
+
+ if (!usb_ss_ep->trb_pool) {
+ dev_err(&(usb_ss_ep->usb_ss->dev),
+ "Failed to allocate TRB pool for endpoint %s\n",
+ usb_ss_ep->name);
+ return -ENOMEM;
+ }
+
+ memset(usb_ss_ep->trb_pool, 0, sizeof(struct usb_ss_trb) * USB_SS_TRBS_NUM);
+
+ return 0;
+}
+
+/**
+ * cdns_ep_stall_flush - Stalls and flushes selected endpoint
+ * @usb_ss_ep: extended endpoint object
+ *
+ * Endpoint must be selected before call to this function
+ */
+static void cdns_ep_stall_flush(struct usb_ss_endpoint *usb_ss_ep)
+{
+ struct usb_ss_dev *usb_ss = usb_ss_ep->usb_ss;
+
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__DFLUSH__MASK | EP_CMD__ERDY__MASK |
+ EP_CMD__SSTALL__MASK);
+
+ /* wait for DFLUSH cleared */
+ while (gadget_readl(usb_ss,
+ &usb_ss->regs->ep_cmd) & EP_CMD__DFLUSH__MASK)
+ ;
+
+ usb_ss_ep->stalled_flag = 1;
+}
+
+/**
+ * cdns_ep0_config - Configures default endpoint
+ * @usb_ss: extended gadget object
+ *
+ * Functions sets parameters: maximal packet size and enables interrupts
+ */
+static void cdns_ep0_config(struct usb_ss_dev *usb_ss)
+{
+ u32 max_packet_size = 0;
+
+ switch (usb_ss->gadget.speed) {
+ case USB_SPEED_UNKNOWN:
+ max_packet_size = ENDPOINT_MAX_PACKET_SIZE_0;
+ usb_ss->gadget.ep0->maxpacket = ENDPOINT_MAX_PACKET_SIZE_0;
+ cdns3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(0);
+ break;
+
+ case USB_SPEED_LOW:
+ max_packet_size = ENDPOINT_MAX_PACKET_SIZE_8;
+ usb_ss->gadget.ep0->maxpacket = ENDPOINT_MAX_PACKET_SIZE_8;
+ cdns3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(8);
+ break;
+
+ case USB_SPEED_FULL:
+ max_packet_size = ENDPOINT_MAX_PACKET_SIZE_64;
+ usb_ss->gadget.ep0->maxpacket = ENDPOINT_MAX_PACKET_SIZE_64;
+ cdns3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(64);
+ break;
+
+ case USB_SPEED_HIGH:
+ max_packet_size = ENDPOINT_MAX_PACKET_SIZE_64;
+ usb_ss->gadget.ep0->maxpacket = ENDPOINT_MAX_PACKET_SIZE_64;
+ cdns3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(64);
+ break;
+
+ case USB_SPEED_WIRELESS:
+ max_packet_size = ENDPOINT_MAX_PACKET_SIZE_64;
+ usb_ss->gadget.ep0->maxpacket = ENDPOINT_MAX_PACKET_SIZE_64;
+ cdns3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(64);
+ break;
+
+ case USB_SPEED_SUPER:
+ max_packet_size = ENDPOINT_MAX_PACKET_SIZE_512;
+ usb_ss->gadget.ep0->maxpacket = ENDPOINT_MAX_PACKET_SIZE_512;
+ cdns3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
+ break;
+ }
+
+ /* init ep out */
+ select_ep(usb_ss, USB_DIR_OUT);
+
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cfg,
+ EP_CFG__ENABLE__MASK |
+ EP_CFG__MAXPKTSIZE__WRITE(max_packet_size));
+ gadget_writel(usb_ss, &usb_ss->regs->ep_sts_en,
+ EP_STS_EN__SETUPEN__MASK |
+ EP_STS_EN__DESCMISEN__MASK |
+ EP_STS_EN__TRBERREN__MASK);
+
+ /* init ep in */
+ select_ep(usb_ss, USB_DIR_IN);
+
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cfg,
+ EP_CFG__ENABLE__MASK |
+ EP_CFG__MAXPKTSIZE__WRITE(max_packet_size));
+ gadget_writel(usb_ss, &usb_ss->regs->ep_sts_en,
+ EP_STS_EN__SETUPEN__MASK |
+ EP_STS_EN__TRBERREN__MASK);
+
+ cdns_prepare_setup_packet(usb_ss);
+}
+
+/**
+ * cdns_gadget_unconfig - Unconfigures device controller
+ * @usb_ss: extended gadget object
+ */
+static void cdns_gadget_unconfig(struct usb_ss_dev *usb_ss)
+{
+ /* RESET CONFIGURATION */
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf,
+ USB_CONF__CFGRST__MASK);
+
+ usb_ss->hw_configured_flag = 0;
+}
+
+/**
+ * cdns_ep0_run_transfer - Do transfer on default endpoint hardware
+ * @usb_ss: extended gadget object
+ * @dma_addr: physical address where data is/will be stored
+ * @length: data length
+ * @erdy: set it to 1 when ERDY packet should be sent -
+ * exit from flow control state
+ */
+static void cdns_ep0_run_transfer(struct usb_ss_dev *usb_ss,
+ dma_addr_t dma_addr, unsigned int length, int erdy)
+{
+ usb_ss->trb_ep0[0] = TRB_SET_DATA_BUFFER_POINTER(dma_addr);
+ usb_ss->trb_ep0[1] = TRB_SET_TRANSFER_LENGTH((u32)length);
+ usb_ss->trb_ep0[2] = TRB_SET_CYCLE_BIT |
+ TRB_SET_INT_ON_COMPLETION | TRB_TYPE_NORMAL;
+
+ cdns_flush_cache((uintptr_t)usb_ss->trb_ep0, 20);
+ cdns_flush_cache((uintptr_t)dma_addr, length);
+
+ dev_dbg(&usb_ss->dev, "DRBL(%02X)\n",
+ usb_ss->ep0_data_dir ? USB_DIR_IN : USB_DIR_OUT);
+
+ select_ep(usb_ss, usb_ss->ep0_data_dir
+ ? USB_DIR_IN : USB_DIR_OUT);
+
+ gadget_writel(usb_ss, &usb_ss->regs->ep_traddr,
+ EP_TRADDR__TRADDR__WRITE(usb_ss->trb_ep0_dma));
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__DRDY__MASK); /* drbl */
+
+ if (erdy)
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__ERDY__MASK);
+}
+
+/**
+ * cdns_ep_run_transfer - Do transfer on no-default endpoint hardware
+ * @usb_ss_ep: extended endpoint object
+ *
+ * Returns zero on success or negative value on failure
+ */
+static int cdns_ep_run_transfer(struct usb_ss_endpoint *usb_ss_ep)
+{
+ dma_addr_t trb_dma;
+ struct usb_request *request = next_request(&usb_ss_ep->request_list);
+ struct usb_ss_dev *usb_ss = usb_ss_ep->usb_ss;
+ struct usb_ss_trb *trb;
+
+ if (request == NULL)
+ return -EINVAL;
+
+ dev_dbg(&usb_ss->dev, "DRBL(%02X)\n",
+ usb_ss_ep->endpoint.desc->bEndpointAddress);
+
+ usb_ss_ep->hw_pending_flag = 1;
+ trb_dma = request->dma;
+
+ /* must allocate buffer aligned to 8 */
+ if (request->dma % ADDR_MODULO_8) {
+ memcpy(usb_ss_ep->cpu_addr, request->buf, request->length);
+ trb_dma = usb_ss_ep->dma_addr;
+ }
+
+ cdns_flush_cache((uintptr_t)trb_dma, request->length);
+
+ trb = usb_ss_ep->trb_pool;
+
+ /* fill TRB */
+ trb->offset0 = trb_dma;
+
+ trb->offset4 = TRB_SET_BURST_LENGTH(16) |
+ TRB_SET_TRANSFER_LENGTH(request->length);
+
+ trb->offset8 = TRB_SET_CYCLE_BIT
+ | TRB_SET_INT_ON_COMPLETION
+ | TRB_SET_INT_ON_SHORT_PACKET
+ | TRB_TYPE_NORMAL;
+
+ cdns_flush_cache((uintptr_t)trb, sizeof(struct usb_ss_trb));
+
+ /* arm transfer on selected endpoint */
+ select_ep(usb_ss_ep->usb_ss,
+ usb_ss_ep->endpoint.desc->bEndpointAddress);
+
+ gadget_writel(usb_ss, &usb_ss->regs->ep_traddr,
+ EP_TRADDR__TRADDR__WRITE(usb_ss_ep->trb_pool_dma));
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__DRDY__MASK); /* DRDY */
+ return 0;
+}
+
+/**
+ * cdns_get_setup_ret - Returns status of handling setup packet
+ * Setup is handled by gadget driver
+ * @usb_ss: extended gadget object
+ * @ctrl_req: pointer to received setup packet
+ *
+ * Returns zero on success or negative value on failure
+ */
+static int cdns_get_setup_ret(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req)
+{
+ int ret;
+
+ spin_unlock(&usb_ss->lock);
+ usb_ss->setup_pending = 1;
+ ret = usb_ss->gadget_driver->setup(&usb_ss->gadget, ctrl_req);
+ usb_ss->setup_pending = 0;
+ spin_lock(&usb_ss->lock);
+ return ret;
+}
+
+static void cdns_prepare_setup_packet(struct usb_ss_dev *usb_ss)
+{
+ usb_ss->ep0_data_dir = 0;
+ cdns_ep0_run_transfer(usb_ss, usb_ss->setup_dma, 8, 0);
+}
+
+/**
+ * cdns_req_ep0_set_address - Handling of SET_ADDRESS standard USB request
+ * @usb_ss: extended gadget object
+ * @ctrl_req: pointer to received setup packet
+ *
+ * Returns 0 if success, error code on error
+ */
+static int cdns_req_ep0_set_address(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req)
+{
+ enum usb_device_state device_state = usb_ss->gadget.state;
+ u32 reg;
+ u32 addr;
+
+ addr = le16_to_cpu(ctrl_req->wValue);
+
+ if (addr > DEVICE_ADDRESS_MAX) {
+ dev_err(&usb_ss->dev,
+ "Device address (%d) cannot be greater than %d\n",
+ addr, DEVICE_ADDRESS_MAX);
+ return -EINVAL;
+ }
+
+ if (device_state == USB_STATE_CONFIGURED) {
+ dev_err(&usb_ss->dev, "USB device already configured\n");
+ return -EINVAL;
+ }
+
+ reg = gadget_readl(usb_ss, &usb_ss->regs->usb_cmd);
+
+ gadget_writel(usb_ss, &usb_ss->regs->usb_cmd, reg
+ | USB_CMD__FADDR__WRITE(addr)
+ | USB_CMD__SET_ADDR__MASK);
+
+ usb_gadget_set_state(&usb_ss->gadget,
+ (addr ? USB_STATE_ADDRESS : USB_STATE_DEFAULT));
+
+ cdns_prepare_setup_packet(usb_ss);
+
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__ERDY__MASK | EP_CMD__REQ_CMPL__MASK);
+ return 0;
+}
+
+/**
+ * cdns_req_ep0_get_status - Handling of GET_STATUS standard USB request
+ * @usb_ss: extended gadget object
+ * @ctrl_req: pointer to received setup packet
+ *
+ * Returns 0 if success, error code on error
+ */
+static int cdns_req_ep0_get_status(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req)
+{
+ u16 usb_status = 0;
+ unsigned int length = 2;
+ u32 recip = ctrl_req->bRequestType & USB_RECIP_MASK;
+ u32 reg;
+
+ switch (recip) {
+ case USB_RECIP_DEVICE:
+ reg = gadget_readl(usb_ss, &usb_ss->regs->usb_sts);
+
+ if (reg & USB_STS__U1ENS__MASK)
+ usb_status |= 1uL << USB_DEV_STAT_U1_ENABLED;
+
+ if (reg & USB_STS__U2ENS__MASK)
+ usb_status |= 1uL << USB_DEV_STAT_U2_ENABLED;
+
+ if (usb_ss->wake_up_flag)
+ usb_status |= 1uL << USB_DEVICE_REMOTE_WAKEUP;
+
+ /* self powered */
+ usb_status |= 1uL << USB_DEVICE_SELF_POWERED;
+ break;
+
+ case USB_RECIP_INTERFACE:
+ return cdns_get_setup_ret(usb_ss, ctrl_req);
+
+ case USB_RECIP_ENDPOINT:
+ /* check if endpoint is stalled */
+ select_ep(usb_ss, ctrl_req->wIndex);
+ if (gadget_readl(usb_ss, &usb_ss->regs->ep_sts)
+ & EP_STS__STALL__MASK)
+ usb_status = 1;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ *(u16 *)usb_ss->setup = cpu_to_le16(usb_status);
+
+ usb_ss->actual_ep0_request = NULL;
+ cdns_ep0_run_transfer(usb_ss, usb_ss->setup_dma, length, 1);
+ return 0;
+}
+
+/**
+ * cdns_req_ep0_handle_feature -
+ * Handling of GET/SET_FEATURE standard USB request
+ *
+ * @usb_ss: extended gadget object
+ * @ctrl_req: pointer to received setup packet
+ * @set: must be set to 1 for SET_FEATURE request
+ *
+ * Returns 0 if success, error code on error
+ */
+static int cdns_req_ep0_handle_feature(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req, int set)
+{
+ u32 recip = ctrl_req->bRequestType & USB_RECIP_MASK;
+ struct usb_ss_endpoint *usb_ss_ep;
+ u32 reg;
+ u8 tmode = 0;
+
+ switch (recip) {
+ case USB_RECIP_DEVICE:
+
+ switch (ctrl_req->wValue) {
+ case USB_DEVICE_U1_ENABLE:
+ if (usb_ss->gadget.state != USB_STATE_CONFIGURED)
+ return -EINVAL;
+ if (usb_ss->gadget.speed != USB_SPEED_SUPER)
+ return -EINVAL;
+
+ reg = gadget_readl(usb_ss, &usb_ss->regs->usb_conf);
+ if (set)
+ /* set U1EN */
+ reg |= USB_CONF__U1EN__MASK;
+ else
+ /* set U1 disable */
+ reg |= USB_CONF__U1DS__MASK;
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf, reg);
+ break;
+
+ case USB_DEVICE_U2_ENABLE:
+ if (usb_ss->gadget.state != USB_STATE_CONFIGURED)
+ return -EINVAL;
+ if (usb_ss->gadget.speed != USB_SPEED_SUPER)
+ return -EINVAL;
+
+ reg = gadget_readl(usb_ss, &usb_ss->regs->usb_conf);
+ if (set)
+ /* set U2EN */
+ reg |= USB_CONF__U2EN__MASK;
+ else
+ /* set U2 disable */
+ reg |= USB_CONF__U2DS__MASK;
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf, reg);
+ break;
+
+ case USB_DEVICE_A_ALT_HNP_SUPPORT:
+ break;
+
+ case USB_DEVICE_A_HNP_SUPPORT:
+ break;
+
+ case USB_DEVICE_B_HNP_ENABLE:
+ if (!usb_ss->gadget.b_hnp_enable && set)
+ usb_ss->gadget.b_hnp_enable = 1;
+ break;
+
+ case USB_DEVICE_REMOTE_WAKEUP:
+ usb_ss->wake_up_flag = !!set;
+ break;
+
+ case USB_DEVICE_TEST_MODE:
+ if (usb_ss->gadget.state != USB_STATE_CONFIGURED)
+ return -EINVAL;
+ if (usb_ss->gadget.speed != USB_SPEED_HIGH &&
+ usb_ss->gadget.speed != USB_SPEED_FULL)
+ return -EINVAL;
+ if (ctrl_req->wLength != 0 ||
+ ctrl_req->bRequestType & USB_DIR_IN) {
+ dev_err(&usb_ss->dev, "req is error\n");
+ return -EINVAL;
+ }
+ tmode = le16_to_cpu(ctrl_req->wIndex) >> 8;
+ switch (tmode) {
+ case TEST_J:
+ case TEST_K:
+ case TEST_SE0_NAK:
+ case TEST_PACKET:
+ reg = gadget_readl(usb_ss,
+ &usb_ss->regs->usb_cmd);
+ tmode -= 1;
+ reg |= USB_CMD__STMODE |
+ USB_CMD__TMODE_SEL(tmode);
+ gadget_writel(usb_ss, &usb_ss->regs->usb_cmd,
+ reg);
+ dev_info(&usb_ss->dev,
+ "set test mode, val=0x%x", reg);
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ break;
+
+ case USB_RECIP_INTERFACE:
+ return cdns_get_setup_ret(usb_ss, ctrl_req);
+
+ case USB_RECIP_ENDPOINT:
+ select_ep(usb_ss, ctrl_req->wIndex);
+
+ if (set) {
+ /* set stall */
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__SSTALL__MASK);
+
+ /* handle non zero endpoint software endpoint */
+ if (ctrl_req->wIndex & 0x7F) {
+ usb_ss_ep = usb_ss->eps[CAST_EP_ADDR_TO_INDEX(
+ ctrl_req->wIndex)];
+ usb_ss_ep->stalled_flag = 1;
+ }
+ } else {
+ struct usb_request *request;
+
+ if (ctrl_req->wIndex & 0x7F) {
+ if (usb_ss->eps[CAST_EP_ADDR_TO_INDEX(
+ ctrl_req->wIndex)]->wedge_flag)
+ goto jmp_wedge;
+ }
+
+ /* clear stall */
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__CSTALL__MASK | EP_CMD__EPRST__MASK);
+ /* wait for EPRST cleared */
+ while (gadget_readl(usb_ss, &usb_ss->regs->ep_cmd)
+ & EP_CMD__EPRST__MASK)
+ ;
+
+ /* handle non zero endpoint software endpoint */
+ if (ctrl_req->wIndex & 0x7F) {
+ usb_ss_ep = usb_ss->eps[CAST_EP_ADDR_TO_INDEX(
+ ctrl_req->wIndex)];
+ usb_ss_ep->stalled_flag = 0;
+
+ request = next_request(
+ &usb_ss_ep->request_list);
+ if (request)
+ cdns_ep_run_transfer(usb_ss_ep);
+ }
+ }
+jmp_wedge:
+ select_ep(usb_ss, 0x00);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__ERDY__MASK | EP_CMD__REQ_CMPL__MASK);
+
+ return 0;
+}
+
+/**
+ * cdns_req_ep0_set_sel - Handling of SET_SEL standard USB request
+ * @usb_ss: extended gadget object
+ * @ctrl_req: pointer to received setup packet
+ *
+ * Returns 0 if success, error code on error
+ */
+static int cdns_req_ep0_set_sel(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req)
+{
+ if (usb_ss->gadget.state < USB_STATE_ADDRESS)
+ return -EINVAL;
+
+ if (ctrl_req->wLength != 6) {
+ dev_err(&usb_ss->dev, "Set SEL should be 6 bytes, got %d\n",
+ ctrl_req->wLength);
+ return -EINVAL;
+ }
+
+ usb_ss->ep0_data_dir = 0;
+ usb_ss->actual_ep0_request = NULL;
+ cdns_ep0_run_transfer(usb_ss, usb_ss->setup_dma, 6, 1);
+
+ return 0;
+}
+
+/**
+ * cdns_req_ep0_set_isoch_delay -
+ * Handling of GET_ISOCH_DELAY standard USB request
+ * @usb_ss: extended gadget object
+ * @ctrl_req: pointer to received setup packet
+ *
+ * Returns 0 if success, error code on error
+ */
+static int cdns_req_ep0_set_isoch_delay(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req)
+{
+ if (ctrl_req->wIndex || ctrl_req->wLength)
+ return -EINVAL;
+
+ usb_ss->isoch_delay = ctrl_req->wValue;
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__ERDY__MASK | EP_CMD__REQ_CMPL__MASK);
+ return 0;
+}
+
+/**
+ * cdns_req_ep0_set_configuration - Handling of SET_CONFIG standard USB request
+ * @usb_ss: extended gadget object
+ * @ctrl_req: pointer to received setup packet
+ *
+ * Returns 0 if success, 0x7FFF on deferred status stage, error code on error
+ */
+static int cdns_req_ep0_set_configuration(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req)
+{
+ enum usb_device_state device_state = usb_ss->gadget.state;
+ u32 config = le16_to_cpu(ctrl_req->wValue);
+ struct usb_ep *ep;
+ struct usb_ss_endpoint *usb_ss_ep, *temp_ss_ep;
+ int i, result = 0;
+
+ switch (device_state) {
+ case USB_STATE_ADDRESS:
+ /* Configure non-control EPs */
+ list_for_each_entry_safe(usb_ss_ep, temp_ss_ep,
+ &usb_ss->ep_match_list, ep_match_pending_list) {
+ cdns_ep_config(usb_ss_ep);
+ list_del(&usb_ss_ep->ep_match_pending_list);
+ }
+
+ list_for_each_entry(ep, &(usb_ss->gadget.ep_list), ep_list) {
+ usb_ss_ep = to_usb_ss_ep(ep);
+ if (usb_ss_ep->used)
+ cdns_ep_config(usb_ss_ep);
+ }
+
+#ifdef CDNS_THREADED_IRQ_HANDLING
+ usb_ss->ep_ien = gadget_readl(usb_ss, &usb_ss->regs->ep_ien)
+ | EP_IEN__EOUTEN0__MASK | EP_IEN__EINEN0__MASK;
+#endif
+ result = cdns_get_setup_ret(usb_ss, ctrl_req);
+
+ if (result != 0)
+ return result;
+
+ if (config) {
+ if (!usb_ss->hw_configured_flag) {
+ /* SET CONFIGURATION */
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf,
+ USB_CONF__CFGSET__MASK);
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__ERDY__MASK |
+ EP_CMD__REQ_CMPL__MASK);
+ /* wait until configuration set */
+ while (!(gadget_readl(usb_ss,
+ &usb_ss->regs->usb_sts)
+ & USB_STS__CFGSTS__MASK))
+ ;
+ usb_ss->hw_configured_flag = 1;
+
+ list_for_each_entry(ep,
+ &usb_ss->gadget.ep_list,
+ ep_list) {
+ if (to_usb_ss_ep(ep)->enabled)
+ cdns_ep_run_transfer(
+ to_usb_ss_ep(ep));
+ }
+ }
+
+ usb_gadget_set_state(&usb_ss->gadget,
+ USB_STATE_CONFIGURED);
+
+ } else {
+ cdns_gadget_unconfig(usb_ss);
+ for (i = 0; i < usb_ss->ep_nums; i++)
+ usb_ss->eps[i]->enabled = 0;
+ usb_gadget_set_state(&usb_ss->gadget,
+ USB_STATE_ADDRESS);
+ }
+ break;
+
+ case USB_STATE_CONFIGURED:
+ result = cdns_get_setup_ret(usb_ss, ctrl_req);
+ if (!config && !result) {
+ cdns_gadget_unconfig(usb_ss);
+ for (i = 0; i < usb_ss->ep_nums; i++)
+ usb_ss->eps[i]->enabled = 0;
+ usb_gadget_set_state(&usb_ss->gadget,
+ USB_STATE_ADDRESS);
+ }
+ break;
+
+ default:
+ result = -EINVAL;
+ }
+
+ return result;
+}
+
+/**
+ * cdns_ep0_standard_request - Handling standard USB requests
+ * @usb_ss: extended gadget object
+ * @ctrl_req: pointer to received setup packet
+ *
+ * Returns 0 if success, error code on error
+ */
+static int cdns_ep0_standard_request(struct usb_ss_dev *usb_ss,
+ struct usb_ctrlrequest *ctrl_req)
+{
+ switch (ctrl_req->bRequest) {
+ case USB_REQ_SET_ADDRESS:
+ return cdns_req_ep0_set_address(usb_ss, ctrl_req);
+ case USB_REQ_SET_CONFIGURATION:
+ return cdns_req_ep0_set_configuration(usb_ss, ctrl_req);
+ case USB_REQ_GET_STATUS:
+ return cdns_req_ep0_get_status(usb_ss, ctrl_req);
+ case USB_REQ_CLEAR_FEATURE:
+ return cdns_req_ep0_handle_feature(usb_ss, ctrl_req, 0);
+ case USB_REQ_SET_FEATURE:
+ return cdns_req_ep0_handle_feature(usb_ss, ctrl_req, 1);
+ case USB_REQ_SET_SEL:
+ return cdns_req_ep0_set_sel(usb_ss, ctrl_req);
+ case USB_REQ_SET_ISOCH_DELAY:
+ return cdns_req_ep0_set_isoch_delay(usb_ss, ctrl_req);
+ default:
+ return cdns_get_setup_ret(usb_ss, ctrl_req);
+ }
+}
+
+/**
+ * cdns_ep0_setup_phase - Handling setup USB requests
+ * @usb_ss: extended gadget object
+ */
+static void cdns_ep0_setup_phase(struct usb_ss_dev *usb_ss)
+{
+ int result;
+ struct usb_ctrlrequest *ctrl_req =
+ (struct usb_ctrlrequest *)usb_ss->setup;
+
+ if ((ctrl_req->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD)
+ result = cdns_ep0_standard_request(usb_ss, ctrl_req);
+ else
+ result = cdns_get_setup_ret(usb_ss, ctrl_req);
+
+ if (result != 0 && result != USB_GADGET_DELAYED_STATUS) {
+ dev_dbg(&usb_ss->dev, "STALL(00) %d\n", result);
+
+ /* set_stall on ep0 */
+ select_ep(usb_ss, 0x00);
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__SSTALL__MASK);
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__ERDY__MASK | EP_CMD__REQ_CMPL__MASK);
+ return;
+ }
+}
+
+/**
+ * cdns_check_ep_interrupt_proceed - Processes interrupt related to endpoint
+ * @usb_ss_ep: extended endpoint object
+ *
+ * Returns 0
+ */
+static int cdns_check_ep_interrupt_proceed(struct usb_ss_endpoint *usb_ss_ep)
+{
+ struct usb_ss_dev *usb_ss = usb_ss_ep->usb_ss;
+ struct usb_request *request;
+ u32 ep_sts_reg;
+
+ select_ep(usb_ss, usb_ss_ep->address);
+ ep_sts_reg = gadget_readl(usb_ss, &usb_ss->regs->ep_sts);
+
+ dev_dbg(&usb_ss->dev, "EP_STS: %08X\n", ep_sts_reg);
+
+ if (ep_sts_reg & EP_STS__TRBERR__MASK) {
+ gadget_writel(usb_ss,
+ &usb_ss->regs->ep_sts, EP_STS__TRBERR__MASK);
+
+ dev_dbg(&usb_ss->dev, "TRBERR(%02X)\n",
+ usb_ss_ep->endpoint.desc->bEndpointAddress);
+ }
+
+ if (ep_sts_reg & EP_STS__ISOERR__MASK) {
+ gadget_writel(usb_ss,
+ &usb_ss->regs->ep_sts, EP_STS__ISOERR__MASK);
+ dev_dbg(&usb_ss->dev, "ISOERR(%02X)\n",
+ usb_ss_ep->endpoint.desc->bEndpointAddress);
+ }
+
+ if (ep_sts_reg & EP_STS__OUTSMM__MASK) {
+ gadget_writel(usb_ss, &usb_ss->regs->ep_sts,
+ EP_STS__OUTSMM__MASK);
+ dev_dbg(&usb_ss->dev, "OUTSMM(%02X)\n",
+ usb_ss_ep->endpoint.desc->bEndpointAddress);
+ }
+
+ if (ep_sts_reg & EP_STS__NRDY__MASK) {
+ gadget_writel(usb_ss,
+ &usb_ss->regs->ep_sts, EP_STS__NRDY__MASK);
+ dev_dbg(&usb_ss->dev, "NRDY(%02X)\n",
+ usb_ss_ep->endpoint.desc->bEndpointAddress);
+ }
+
+ if ((ep_sts_reg & EP_STS__IOC__MASK)
+ || (ep_sts_reg & EP_STS__ISP__MASK)) {
+ cdns_flush_cache((uintptr_t)usb_ss_ep->trb_pool, sizeof(struct usb_ss_trb));
+
+ gadget_writel(usb_ss, &usb_ss->regs->ep_sts,
+ EP_STS__IOC__MASK | EP_STS__ISP__MASK);
+
+ /* get just completed request */
+ request = next_request(&usb_ss_ep->request_list);
+ usb_gadget_unmap_request(&usb_ss->gadget, request,
+ usb_ss_ep->endpoint.desc->bEndpointAddress
+ & ENDPOINT_DIR_MASK);
+
+ request->status = 0;
+ request->actual =
+ le32_to_cpu(((u32 *)usb_ss_ep->trb_pool)[1])
+ & ACTUAL_TRANSFERRED_BYTES_MASK;
+
+ dev_dbg(&usb_ss->dev, "IOC(%02X) %d\n",
+ usb_ss_ep->endpoint.desc->bEndpointAddress,
+ request->actual);
+
+ list_del(&request->list);
+
+ usb_ss_ep->hw_pending_flag = 0;
+ if (request->complete) {
+ spin_unlock(&usb_ss->lock);
+ usb_gadget_giveback_request(&usb_ss_ep->endpoint,
+ request);
+ spin_lock(&usb_ss->lock);
+ }
+
+ /* handle deferred STALL */
+ if (usb_ss_ep->stalled_flag) {
+ cdns_ep_stall_flush(usb_ss_ep);
+ return 0;
+ }
+
+ /* exit if hardware transfer already started */
+ if (usb_ss_ep->hw_pending_flag)
+ return 0;
+
+ /* if any request queued run it! */
+ if (!list_empty(&usb_ss_ep->request_list))
+ cdns_ep_run_transfer(usb_ss_ep);
+ }
+
+ if (ep_sts_reg & EP_STS__DESCMIS__MASK) {
+ gadget_writel(usb_ss,
+ &usb_ss->regs->ep_sts, EP_STS__DESCMIS__MASK);
+ dev_dbg(&usb_ss->dev, "DESCMIS(%02X)\n",
+ usb_ss_ep->endpoint.desc->bEndpointAddress);
+ }
+
+ return 0;
+}
+
+/**
+ * cdns_check_ep0_interrupt_proceed - Processes interrupt related to endpoint 0
+ * @usb_ss: extended gadget object
+ * @dir: 1 for IN direction, 0 for OUT direction
+ */
+static void cdns_check_ep0_interrupt_proceed(struct usb_ss_dev *usb_ss, int dir)
+{
+ u32 ep_sts_reg;
+ int i;
+
+ select_ep(usb_ss, 0 | (dir ? USB_DIR_IN : USB_DIR_OUT));
+ ep_sts_reg = gadget_readl(usb_ss, &usb_ss->regs->ep_sts);
+
+ dev_dbg(&usb_ss->dev, "EP_STS: %08X\n", ep_sts_reg);
+
+ if ((ep_sts_reg & EP_STS__SETUP__MASK) && (dir == 0)) {
+ cdns_flush_cache((uintptr_t)usb_ss->setup, 8);
+
+ dev_dbg(&usb_ss->dev, "SETUP(%02X)\n", 0x00);
+
+ gadget_writel(usb_ss, &usb_ss->regs->ep_sts,
+ EP_STS__SETUP__MASK |
+ EP_STS__IOC__MASK | EP_STS__ISP__MASK);
+
+ dev_dbg(&usb_ss->dev, "SETUP: ");
+ for (i = 0; i < 8; i++)
+ dev_dbg(&usb_ss->dev, "%02X ", usb_ss->setup[i]);
+ dev_dbg(&usb_ss->dev, "\nSTATE: %d\n", usb_ss->gadget.state);
+ usb_ss->ep0_data_dir = usb_ss->setup[0] & USB_DIR_IN;
+ cdns_ep0_setup_phase(usb_ss);
+ ep_sts_reg &= ~(EP_STS__SETUP__MASK |
+ EP_STS__IOC__MASK |
+ EP_STS__ISP__MASK);
+ }
+
+ if (ep_sts_reg & EP_STS__TRBERR__MASK) {
+ gadget_writel(usb_ss,
+ &usb_ss->regs->ep_sts, EP_STS__TRBERR__MASK);
+ dev_dbg(&usb_ss->dev, "TRBERR(%02X)\n",
+ dir ? USB_DIR_IN : USB_DIR_OUT);
+ }
+
+ if (ep_sts_reg & EP_STS__DESCMIS__MASK) {
+ gadget_writel(usb_ss,
+ &usb_ss->regs->ep_sts, EP_STS__DESCMIS__MASK);
+
+ dev_dbg(&usb_ss->dev, "DESCMIS(%02X)\n",
+ dir ? USB_DIR_IN : USB_DIR_OUT);
+
+ if (dir == 0 && !usb_ss->setup_pending) {
+ usb_ss->ep0_data_dir = 0;
+ cdns_ep0_run_transfer(usb_ss,
+ usb_ss->setup_dma, 8, 0);
+ }
+ }
+
+ if ((ep_sts_reg & EP_STS__IOC__MASK) ||
+ (ep_sts_reg & EP_STS__ISP__MASK)) {
+ cdns_flush_cache((uintptr_t)usb_ss->trb_ep0, 20);
+
+ gadget_writel(usb_ss,
+ &usb_ss->regs->ep_sts, EP_STS__IOC__MASK);
+ if (usb_ss->actual_ep0_request) {
+ usb_gadget_unmap_request(&usb_ss->gadget,
+ usb_ss->actual_ep0_request,
+ usb_ss->ep0_data_dir);
+
+ usb_ss->actual_ep0_request->actual =
+ le32_to_cpu((usb_ss->trb_ep0)[1])
+ & ACTUAL_TRANSFERRED_BYTES_MASK;
+
+ dev_dbg(&usb_ss->dev, "IOC(%02X) %d\n",
+ dir ? USB_DIR_IN : USB_DIR_OUT,
+ usb_ss->actual_ep0_request->actual);
+ }
+
+ if (usb_ss->actual_ep0_request &&
+ usb_ss->actual_ep0_request->complete) {
+ spin_unlock(&usb_ss->lock);
+ usb_ss->actual_ep0_request->complete(usb_ss->gadget.ep0,
+ usb_ss->actual_ep0_request);
+ spin_lock(&usb_ss->lock);
+ }
+ cdns_prepare_setup_packet(usb_ss);
+ gadget_writel(usb_ss,
+ &usb_ss->regs->ep_cmd, EP_CMD__REQ_CMPL__MASK);
+ }
+}
+
+/**
+ * cdns_check_usb_interrupt_proceed - Processes interrupt related to device
+ * @usb_ss: extended gadget object
+ * @usb_ists: bitmap representation of device's reported interrupts
+ * (usb_ists register value)
+ */
+static void cdns_check_usb_interrupt_proceed(struct usb_ss_dev *usb_ss,
+ u32 usb_ists)
+{
+ int interrupt_bit = ffs(usb_ists) - 1;
+ int speed;
+ u32 val;
+
+ dev_dbg(&usb_ss->dev, "USB interrupt detected\n");
+
+ switch (interrupt_bit) {
+ case USB_ISTS__CON2I__SHIFT:
+ /* FS/HS Connection detected */
+ dev_dbg(&usb_ss->dev,
+ "[Interrupt] FS/HS Connection detected\n");
+ val = gadget_readl(usb_ss, &usb_ss->regs->usb_sts);
+ speed = USB_STS__USBSPEED__READ(val);
+ if (speed == USB_SPEED_WIRELESS)
+ speed = USB_SPEED_SUPER;
+ dev_dbg(&usb_ss->dev, "Speed value: %s (%d), usbsts:0x%x\n",
+ usb_speed_string(speed), speed, val);
+ usb_ss->gadget.speed = speed;
+ usb_ss->is_connected = 1;
+ usb_gadget_set_state(&usb_ss->gadget, USB_STATE_POWERED);
+ cdns_ep0_config(usb_ss);
+ break;
+
+ case USB_ISTS__CONI__SHIFT:
+ /* SS Connection detected */
+ dev_dbg(&usb_ss->dev, "[Interrupt] SS Connection detected\n");
+ val = gadget_readl(usb_ss, &usb_ss->regs->usb_sts);
+ speed = USB_STS__USBSPEED__READ(val);
+ if (speed == USB_SPEED_WIRELESS)
+ speed = USB_SPEED_SUPER;
+ dev_dbg(&usb_ss->dev, "Speed value: %s (%d), usbsts:0x%x\n",
+ usb_speed_string(speed), speed, val);
+ usb_ss->gadget.speed = speed;
+ usb_ss->is_connected = 1;
+ usb_gadget_set_state(&usb_ss->gadget, USB_STATE_POWERED);
+ cdns_ep0_config(usb_ss);
+ break;
+
+ case USB_ISTS__DIS2I__SHIFT:
+ case USB_ISTS__DISI__SHIFT:
+ /* SS Disconnection detected */
+ val = gadget_readl(usb_ss, &usb_ss->regs->usb_sts);
+ dev_dbg(&usb_ss->dev,
+ "[Interrupt] Disconnection detected: usbsts:0x%x\n",
+ val);
+ if (usb_ss->gadget_driver &&
+ usb_ss->gadget_driver->disconnect) {
+ spin_unlock(&usb_ss->lock);
+ usb_ss->gadget_driver->disconnect(&usb_ss->gadget);
+ spin_lock(&usb_ss->lock);
+ }
+ usb_ss->gadget.speed = USB_SPEED_UNKNOWN;
+ usb_gadget_set_state(&usb_ss->gadget, USB_STATE_NOTATTACHED);
+ usb_ss->is_connected = 0;
+ cdns_gadget_unconfig(usb_ss);
+ break;
+
+ case USB_ISTS__L2ENTI__SHIFT:
+ dev_dbg(&usb_ss->dev,
+ "[Interrupt] Device suspended\n");
+ break;
+
+ case USB_ISTS__L2EXTI__SHIFT:
+ dev_dbg(&usb_ss->dev, "[Interrupt] L2 exit detected\n");
+ /*
+ * Exit from standby mode
+ * on L2 exit (Suspend in HS/FS or SS)
+ */
+ break;
+ case USB_ISTS__U3EXTI__SHIFT:
+ /*
+ * Exit from standby mode
+ * on U3 exit (Suspend in HS/FS or SS)
+ */
+ dev_dbg(&usb_ss->dev, "[Interrupt] U3 exit detected\n");
+ break;
+
+ /* resets cases */
+ case USB_ISTS__UWRESI__SHIFT:
+ case USB_ISTS__UHRESI__SHIFT:
+ case USB_ISTS__U2RESI__SHIFT:
+ dev_dbg(&usb_ss->dev, "[Interrupt] Reset detected\n");
+ speed = USB_STS__USBSPEED__READ(
+ gadget_readl(usb_ss, &usb_ss->regs->usb_sts));
+ if (speed == USB_SPEED_WIRELESS)
+ speed = USB_SPEED_SUPER;
+ usb_gadget_set_state(&usb_ss->gadget, USB_STATE_DEFAULT);
+ usb_ss->gadget.speed = speed;
+ cdns_gadget_unconfig(usb_ss);
+ cdns_ep0_config(usb_ss);
+ break;
+ default:
+ break;
+ }
+
+ /* Clear interrupt bit */
+ gadget_writel(usb_ss, &usb_ss->regs->usb_ists, (1uL << interrupt_bit));
+}
+
+#ifdef CDNS_THREADED_IRQ_HANDLING
+static irqreturn_t cdns_irq_handler(int irq, void *_usb_ss)
+{
+ struct usb_ss_dev *usb_ss = _usb_ss;
+
+ usb_ss->usb_ien = gadget_readl(usb_ss, &usb_ss->regs->usb_ien);
+ usb_ss->ep_ien = gadget_readl(usb_ss, &usb_ss->regs->ep_ien);
+
+ if (!gadget_readl(usb_ss, &usb_ss->regs->usb_ists) &&
+ !gadget_readl(usb_ss, &usb_ss->regs->ep_ists)) {
+ dev_dbg(&usb_ss->dev, "--BUBBLE INTERRUPT 0 !!!\n");
+ if (gadget_readl(usb_ss, &usb_ss->regs->usb_sts) &
+ USB_STS__CFGSTS__MASK)
+ return IRQ_HANDLED;
+ return IRQ_NONE;
+ }
+
+ gadget_writel(usb_ss, &usb_ss->regs->usb_ien, 0);
+ gadget_writel(usb_ss, &usb_ss->regs->ep_ien, 0);
+
+ gadget_readl(usb_ss, &usb_ss->regs->dma_axi_ctrl);
+ return IRQ_WAKE_THREAD;
+}
+#endif
+
+/**
+ * cdns_irq_handler - irq line interrupt handler
+ * @cdns: cdns3 instance
+ *
+ * Returns IRQ_HANDLED when interrupt raised by USBSS_DEV,
+ * IRQ_NONE when interrupt raised by other device connected
+ * to the irq line
+ */
+static int cdns_irq_handler_thread(struct cdns3 *cdns)
+{
+ struct usb_ss_dev *usb_ss =
+ container_of(cdns->gadget_dev, struct usb_ss_dev, dev);
+ u32 reg;
+ int ret = IRQ_NONE;
+ unsigned long flags;
+
+ spin_lock_irqsave(&usb_ss->lock, flags);
+
+ /* check USB device interrupt */
+ reg = gadget_readl(usb_ss, &usb_ss->regs->usb_ists);
+ if (reg) {
+ dev_dbg(&usb_ss->dev, "usb_ists: %08X\n", reg);
+ cdns_check_usb_interrupt_proceed(usb_ss, reg);
+ ret = IRQ_HANDLED;
+ }
+
+ /* check endpoint interrupt */
+ reg = gadget_readl(usb_ss, &usb_ss->regs->ep_ists);
+ if (reg != 0) {
+ dev_dbg(&usb_ss->dev, "ep_ists: %08X\n", reg);
+ } else {
+ if (gadget_readl(usb_ss, &usb_ss->regs->usb_sts) &
+ USB_STS__CFGSTS__MASK)
+ ret = IRQ_HANDLED;
+ goto irqend;
+ }
+
+ /* handle default endpoint OUT */
+ if (reg & EP_ISTS__EOUT0__MASK) {
+ cdns_check_ep0_interrupt_proceed(usb_ss, 0);
+ ret = IRQ_HANDLED;
+ }
+
+ /* handle default endpoint IN */
+ if (reg & EP_ISTS__EIN0__MASK) {
+ cdns_check_ep0_interrupt_proceed(usb_ss, 1);
+ ret = IRQ_HANDLED;
+ }
+
+ /* check if interrupt from non default endpoint, if no exit */
+ reg &= ~(EP_ISTS__EOUT0__MASK | EP_ISTS__EIN0__MASK);
+ if (!reg)
+ goto irqend;
+
+ do {
+ unsigned int bit_pos = ffs(reg);
+ u32 bit_mask = 1 << (bit_pos - 1);
+
+ dev_dbg(&usb_ss->dev, "Interrupt on index: %d bitmask %08X\n",
+ CAST_EP_REG_POS_TO_INDEX(bit_pos), bit_mask);
+ cdns_check_ep_interrupt_proceed(
+ usb_ss->eps[CAST_EP_REG_POS_TO_INDEX(bit_pos)]);
+ reg &= ~bit_mask;
+ ret = IRQ_HANDLED;
+ } while (reg);
+
+irqend:
+
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+#ifdef CDNS_THREADED_IRQ_HANDLING
+ local_irq_save(flags);
+ gadget_writel(usb_ss, &usb_ss->regs->usb_ien, usb_ss->usb_ien);
+ gadget_writel(usb_ss, &usb_ss->regs->ep_ien, usb_ss->ep_ien);
+ local_irq_restore(flags);
+#endif
+ return ret;
+}
+
+/**
+ * usb_ss_gadget_ep0_enable
+ * Function shouldn't be called by gadget driver,
+ * endpoint 0 is allways active
+ */
+static int usb_ss_gadget_ep0_enable(struct usb_ep *ep,
+ const struct usb_endpoint_descriptor *desc)
+{
+ return -EINVAL;
+}
+
+/**
+ * usb_ss_gadget_ep0_disable
+ * Function shouldn't be called by gadget driver,
+ * endpoint 0 is allways active
+ */
+static int usb_ss_gadget_ep0_disable(struct usb_ep *ep)
+{
+ return -EINVAL;
+}
+
+/**
+ * usb_ss_gadget_ep0_set_halt
+ * @ep: pointer to endpoint zero object
+ * @value: 1 for set stall, 0 for clear stall
+ *
+ * Returns 0
+ */
+static int usb_ss_gadget_ep0_set_halt(struct usb_ep *ep, int value)
+{
+ /* TODO */
+ return 0;
+}
+
+/**
+ * usb_ss_gadget_ep0_queue Transfer data on endpoint zero
+ * @ep: pointer to endpoint zero object
+ * @request: pointer to request object
+ * @gfp_flags: gfp flags
+ *
+ * Returns 0 on success, error code elsewhere
+ */
+static int usb_ss_gadget_ep0_queue(struct usb_ep *ep,
+ struct usb_request *request, gfp_t gfp_flags)
+{
+ int ret;
+ unsigned long flags;
+ int erdy_sent = 0;
+ /* get extended endpoint */
+ struct usb_ss_endpoint *usb_ss_ep =
+ to_usb_ss_ep(ep);
+ struct usb_ss_dev *usb_ss = usb_ss_ep->usb_ss;
+
+ dev_dbg(&usb_ss->dev, "QUEUE(%02X) %d\n",
+ usb_ss->ep0_data_dir ? USB_DIR_IN : USB_DIR_OUT,
+ request->length);
+
+ /* send STATUS stage */
+ if (request->length == 0 && request->zero == 0) {
+ spin_lock_irqsave(&usb_ss->lock, flags);
+ select_ep(usb_ss, 0x00);
+ if (!usb_ss->hw_configured_flag) {
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf,
+ USB_CONF__CFGSET__MASK); /* SET CONFIGURATION */
+ cdns_prepare_setup_packet(usb_ss);
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__ERDY__MASK | EP_CMD__REQ_CMPL__MASK);
+ /* wait until configuration set */
+ while (!(gadget_readl(usb_ss, &usb_ss->regs->usb_sts)
+ & USB_STS__CFGSTS__MASK))
+ ;
+ erdy_sent = 1;
+ usb_ss->hw_configured_flag = 1;
+
+ list_for_each_entry(ep,
+ &usb_ss->gadget.ep_list,
+ ep_list) {
+ if (to_usb_ss_ep(ep)->enabled)
+ cdns_ep_run_transfer(
+ to_usb_ss_ep(ep));
+ }
+ }
+ if (!erdy_sent)
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__ERDY__MASK | EP_CMD__REQ_CMPL__MASK);
+ if (request->complete)
+ request->complete(usb_ss->gadget.ep0, request);
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+ return 0;
+ }
+
+ spin_lock_irqsave(&usb_ss->lock, flags);
+ ret = usb_gadget_map_request(&usb_ss->gadget, request,
+ usb_ss->ep0_data_dir);
+ if (ret) {
+ dev_err(&usb_ss->dev, "failed to map request\n");
+ return -EINVAL;
+ }
+
+ usb_ss->actual_ep0_request = request;
+ cdns_ep0_run_transfer(usb_ss, request->dma, request->length, 1);
+
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+
+ return 0;
+}
+
+/**
+ * cdns_ep_config Configure hardware endpoint
+ * @usb_ss_ep: extended endpoint object
+ */
+static void cdns_ep_config(struct usb_ss_endpoint *usb_ss_ep)
+{
+ struct usb_ss_dev *usb_ss = usb_ss_ep->usb_ss;
+ u32 ep_cfg = 0;
+ u32 max_packet_size = 0;
+ u32 bEndpointAddress = usb_ss_ep->num | usb_ss_ep->dir;
+ u32 interrupt_mask = 0;
+ bool is_iso_ep = (usb_ss_ep->type == USB_ENDPOINT_XFER_ISOC);
+
+ dev_dbg(&usb_ss->dev, "%s: %s addr=0x%x, speed %d, is_iso_ep %d\n", __func__,
+ usb_ss_ep->name, bEndpointAddress, usb_ss->gadget.speed, is_iso_ep);
+
+ if (is_iso_ep) {
+ ep_cfg = EP_CFG__EPTYPE__WRITE(USB_ENDPOINT_XFER_ISOC);
+ interrupt_mask = INTERRUPT_MASK;
+ } else {
+ ep_cfg = EP_CFG__EPTYPE__WRITE(USB_ENDPOINT_XFER_BULK);
+ }
+
+ switch (usb_ss->gadget.speed) {
+ case USB_SPEED_UNKNOWN:
+ max_packet_size = ENDPOINT_MAX_PACKET_SIZE_0;
+ break;
+
+ case USB_SPEED_LOW:
+ max_packet_size = ENDPOINT_MAX_PACKET_SIZE_8;
+ break;
+
+ case USB_SPEED_FULL:
+ max_packet_size = (is_iso_ep ?
+ ENDPOINT_MAX_PACKET_SIZE_1023 :
+ ENDPOINT_MAX_PACKET_SIZE_64);
+ break;
+
+ case USB_SPEED_HIGH:
+ max_packet_size = (is_iso_ep ?
+ ENDPOINT_MAX_PACKET_SIZE_1024 :
+ ENDPOINT_MAX_PACKET_SIZE_512);
+ break;
+
+ case USB_SPEED_WIRELESS:
+ max_packet_size = ENDPOINT_MAX_PACKET_SIZE_512;
+ break;
+
+ case USB_SPEED_SUPER:
+ max_packet_size = ENDPOINT_MAX_PACKET_SIZE_1024;
+ break;
+ }
+
+ ep_cfg |= EP_CFG__MAXPKTSIZE__WRITE(max_packet_size);
+
+ if (is_iso_ep) {
+ ep_cfg |= EP_CFG__BUFFERING__WRITE(1);
+ ep_cfg |= EP_CFG__MAXBURST__WRITE(0);
+ } else {
+ ep_cfg |= EP_CFG__BUFFERING__WRITE(3);
+ ep_cfg |= EP_CFG__MAXBURST__WRITE(15);
+ }
+
+ select_ep(usb_ss, bEndpointAddress);
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cfg, ep_cfg);
+ gadget_writel(usb_ss, &usb_ss->regs->ep_sts_en,
+ EP_STS_EN__TRBERREN__MASK | interrupt_mask);
+
+ /* enable interrupt for selected endpoint */
+ ep_cfg = gadget_readl(usb_ss, &usb_ss->regs->ep_ien);
+ ep_cfg |= CAST_EP_ADDR_TO_BIT_POS(bEndpointAddress);
+ gadget_writel(usb_ss, &usb_ss->regs->ep_ien, ep_cfg);
+}
+
+/**
+ * usb_ss_gadget_ep_enable Enable endpoint
+ * @ep: endpoint object
+ * @desc: endpoint descriptor
+ *
+ * Returns 0 on success, error code elsewhere
+ */
+static int usb_ss_gadget_ep_enable(struct usb_ep *ep,
+ const struct usb_endpoint_descriptor *desc)
+{
+ struct usb_ss_endpoint *usb_ss_ep;
+ struct usb_ss_dev *usb_ss;
+ unsigned long flags;
+ int ret;
+ u32 ep_cfg;
+
+ usb_ss_ep = to_usb_ss_ep(ep);
+ usb_ss = usb_ss_ep->usb_ss;
+
+ if (!ep || !desc || desc->bDescriptorType != USB_DT_ENDPOINT) {
+ dev_err(&usb_ss->dev, "usb-ss: invalid parameters\n");
+ return -EINVAL;
+ }
+
+ if (!desc->wMaxPacketSize) {
+ dev_err(&usb_ss->dev, "usb-ss: missing wMaxPacketSize\n");
+ return -EINVAL;
+ }
+
+ ret = usb_ss_allocate_trb_pool(usb_ss_ep);
+ if (ret)
+ return ret;
+
+ if (!usb_ss_ep->cpu_addr) {
+ usb_ss_ep->cpu_addr = dma_alloc_coherent(4096,
+ (unsigned long *)&usb_ss_ep->dma_addr);
+
+ if (!usb_ss_ep->cpu_addr)
+ return -ENOMEM;
+ }
+
+ dev_dbg(&usb_ss->dev, "Enabling endpoint: %s, addr=0x%x\n",
+ ep->name, desc->bEndpointAddress);
+ spin_lock_irqsave(&usb_ss->lock, flags);
+ select_ep(usb_ss, desc->bEndpointAddress);
+ ep_cfg = gadget_readl(usb_ss, &usb_ss->regs->ep_cfg);
+ ep_cfg |= EP_CFG__ENABLE__MASK;
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cfg, ep_cfg);
+
+ usb_ss_ep->enabled = 1;
+ ep->desc = desc;
+ usb_ss_ep->hw_pending_flag = 0;
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+
+ return 0;
+}
+
+static int usb_ss_gadget_match_ep(struct usb_gadget *gadget,
+ struct usb_ep *ep,
+ struct usb_endpoint_descriptor *desc)
+{
+ struct usb_ss_dev __maybe_unused *usb_ss = gadget_to_usb_ss(gadget);
+ struct usb_ss_endpoint *usb_ss_ep;
+ unsigned long flags;
+
+ usb_ss_ep = to_usb_ss_ep(ep);
+
+ dev_dbg(&usb_ss->dev, "match endpoint: %s\n", usb_ss_ep->name);
+
+ u8 num = simple_strtoul(&ep->name[2], NULL, 10);
+
+ spin_lock_irqsave(&usb_ss->lock, flags);
+ usb_ss_ep->num = num;
+ usb_ss_ep->used = true;
+ usb_ss_ep->endpoint.desc = desc;
+ usb_ss_ep->dir = usb_endpoint_dir_in(desc) ? USB_DIR_IN : USB_DIR_OUT;
+ usb_ss_ep->type = usb_endpoint_type(desc);
+ usb_ss_ep->address = desc->bEndpointAddress;
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+
+ return 1;
+}
+
+static void usb_ss_free_trb_pool(struct usb_ss_endpoint *usb_ss_ep)
+{
+ if (usb_ss_ep->trb_pool) {
+ dma_free_coherent(usb_ss_ep->trb_pool);
+ usb_ss_ep->trb_pool = NULL;
+ }
+
+ if (usb_ss_ep->cpu_addr) {
+ dma_free_coherent(usb_ss_ep->cpu_addr);
+ usb_ss_ep->cpu_addr = NULL;
+ }
+}
+
+/**
+ * usb_ss_gadget_ep_disable Disable endpoint
+ * @ep: endpoint object
+ *
+ * Returns 0 on success, error code elsewhere
+ */
+static int usb_ss_gadget_ep_disable(struct usb_ep *ep)
+{
+ struct usb_ss_endpoint *usb_ss_ep;
+ struct usb_ss_dev *usb_ss;
+ unsigned long flags;
+ int ret = 0;
+ struct usb_request *request;
+ u32 ep_cfg;
+
+ if (!ep) {
+ pr_debug("usb-ss: invalid parameters\n");
+ return -EINVAL;
+ }
+
+ usb_ss_ep = to_usb_ss_ep(ep);
+ usb_ss = usb_ss_ep->usb_ss;
+
+ spin_lock_irqsave(&usb_ss->lock, flags);
+ if (!usb_ss->start_gadget) {
+ dev_dbg(&usb_ss->dev,
+ "Disabling endpoint at disconnection: %s\n", ep->name);
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+ return 0;
+ }
+
+ dev_dbg(&usb_ss->dev,
+ "Disabling endpoint: %s\n", ep->name);
+
+ while (!list_empty(&usb_ss_ep->request_list)) {
+
+ request = next_request(&usb_ss_ep->request_list);
+ usb_gadget_unmap_request(&usb_ss->gadget, request,
+ ep->desc->bEndpointAddress & USB_DIR_IN);
+ request->status = -ESHUTDOWN;
+ list_del(&request->list);
+ spin_unlock(&usb_ss->lock);
+ usb_gadget_giveback_request(ep, request);
+ spin_lock(&usb_ss->lock);
+ }
+
+ select_ep(usb_ss, ep->desc->bEndpointAddress);
+ ep_cfg = gadget_readl(usb_ss, &usb_ss->regs->ep_cfg);
+ ep_cfg &= ~EP_CFG__ENABLE__MASK;
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cfg, ep_cfg);
+ ep->desc = NULL;
+ usb_ss_ep->enabled = 0;
+
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+
+ return ret;
+}
+
+/**
+ * usb_ss_gadget_ep_alloc_request Allocates request
+ * @ep: endpoint object associated with request
+ * @gfp_flags: gfp flags
+ *
+ * Returns allocated request address, NULL on allocation error
+ */
+static struct usb_request *usb_ss_gadget_ep_alloc_request(struct usb_ep *ep,
+ gfp_t gfp_flags)
+{
+ struct usb_request *request;
+
+ request = kzalloc(sizeof(struct usb_request), gfp_flags);
+ if (!request)
+ return NULL;
+
+ return request;
+}
+
+/**
+ * usb_ss_gadget_ep_free_request Free memory occupied by request
+ * @ep: endpoint object associated with request
+ * @request: request to free memory
+ */
+static void usb_ss_gadget_ep_free_request(struct usb_ep *ep,
+ struct usb_request *request)
+{
+ kfree(request);
+}
+
+/**
+ * usb_ss_gadget_ep_queue Transfer data on endpoint
+ * @ep: endpoint object
+ * @request: request object
+ * @gfp_flags: gfp flags
+ *
+ * Returns 0 on success, error code elsewhere
+ */
+static int usb_ss_gadget_ep_queue(struct usb_ep *ep,
+ struct usb_request *request, gfp_t gfp_flags)
+{
+ struct usb_ss_endpoint *usb_ss_ep =
+ to_usb_ss_ep(ep);
+ struct usb_ss_dev *usb_ss = usb_ss_ep->usb_ss;
+ unsigned long flags;
+ int ret = 0;
+ int empty_list = 0;
+
+ spin_lock_irqsave(&usb_ss->lock, flags);
+
+ request->actual = 0;
+ request->status = -EINPROGRESS;
+
+ dev_dbg(&usb_ss->dev,
+ "Queuing endpoint: %s\n", usb_ss_ep->name);
+
+ dev_dbg(&usb_ss->dev, "QUEUE(%02X) %d\n",
+ ep->desc->bEndpointAddress, request->length);
+
+ ret = usb_gadget_map_request(&usb_ss->gadget, request,
+ ep->desc->bEndpointAddress & USB_DIR_IN);
+
+ if (ret) {
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+ return ret;
+ }
+
+ empty_list = list_empty(&usb_ss_ep->request_list);
+ list_add_tail(&request->list, &usb_ss_ep->request_list);
+
+ if (!usb_ss->hw_configured_flag) {
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+ return 0;
+ }
+
+ if (empty_list) {
+ if (!usb_ss_ep->stalled_flag)
+ cdns_ep_run_transfer(usb_ss_ep);
+ }
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+
+ return ret;
+}
+
+/**
+ * usb_ss_gadget_ep_dequeue Remove request from transfer queue
+ * @ep: endpoint object associated with request
+ * @request: request object
+ *
+ * Returns 0 on success, error code elsewhere
+ */
+static int usb_ss_gadget_ep_dequeue(struct usb_ep *ep,
+ struct usb_request *request)
+{
+ struct usb_ss_endpoint *usb_ss_ep =
+ to_usb_ss_ep(ep);
+ struct usb_ss_dev *usb_ss = usb_ss_ep->usb_ss;
+ unsigned long flags;
+
+ spin_lock_irqsave(&usb_ss->lock, flags);
+ if (!usb_ss->start_gadget) {
+ dev_dbg(&usb_ss->dev,
+ "DEQUEUE at disconnection: %s\n", ep->name);
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+ return 0;
+ }
+ dev_dbg(&usb_ss->dev, "DEQUEUE(%02X) %d\n",
+ usb_ss_ep->address, request->length);
+ usb_gadget_unmap_request(&usb_ss->gadget, request,
+ usb_ss_ep->address & USB_DIR_IN);
+ request->status = -ECONNRESET;
+
+ if (usb_ss_ep->address)
+ list_del(&request->list);
+
+ if (request->complete) {
+ spin_unlock(&usb_ss->lock);
+ request->complete(ep, request);
+ spin_lock(&usb_ss->lock);
+ }
+
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+ return 0;
+}
+
+/**
+ * usb_ss_gadget_ep_set_halt Sets/clears stall on selected endpoint
+ * @ep: endpoint object to set/clear stall on
+ * @value: 1 for set stall, 0 for clear stall
+ *
+ * Returns 0 on success, error code elsewhere
+ */
+static int usb_ss_gadget_ep_set_halt(struct usb_ep *ep, int value)
+{
+ struct usb_ss_endpoint *usb_ss_ep =
+ to_usb_ss_ep(ep);
+ struct usb_ss_dev *usb_ss = usb_ss_ep->usb_ss;
+ unsigned long flags;
+
+ /* return error when endpoint disabled */
+ if (!usb_ss_ep->enabled)
+ return -EPERM;
+
+ /* if actual transfer is pending defer setting stall on this endpoint */
+ if (usb_ss_ep->hw_pending_flag && value) {
+ usb_ss_ep->stalled_flag = 1;
+ return 0;
+ }
+
+ dev_dbg(&usb_ss->dev, "HALT(%02X) %d\n", usb_ss_ep->address, value);
+
+ spin_lock_irqsave(&usb_ss->lock, flags);
+
+ select_ep(usb_ss, ep->desc->bEndpointAddress);
+ if (value) {
+ cdns_ep_stall_flush(usb_ss_ep);
+ } else {
+ /*
+ * TODO:
+ * epp->wedgeFlag = 0;
+ */
+ usb_ss_ep->wedge_flag = 0;
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__CSTALL__MASK | EP_CMD__EPRST__MASK);
+ /* wait for EPRST cleared */
+ while (gadget_readl(usb_ss,
+ &usb_ss->regs->ep_cmd) & EP_CMD__EPRST__MASK)
+ ;
+ usb_ss_ep->stalled_flag = 0;
+ }
+ usb_ss_ep->hw_pending_flag = 0;
+
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+
+ return 0;
+}
+
+/**
+ * usb_ss_gadget_ep_set_wedge Set wedge on selected endpoint
+ * @ep: endpoint object
+ *
+ * Returns 0
+ */
+static int usb_ss_gadget_ep_set_wedge(struct usb_ep *ep)
+{
+ struct usb_ss_endpoint *usb_ss_ep = to_usb_ss_ep(ep);
+ struct usb_ss_dev __maybe_unused *usb_ss = usb_ss_ep->usb_ss;
+
+ dev_dbg(&usb_ss->dev, "WEDGE(%02X)\n", usb_ss_ep->address);
+ usb_ss_gadget_ep_set_halt(ep, 1);
+ usb_ss_ep->wedge_flag = 1;
+ return 0;
+}
+
+static const struct usb_ep_ops usb_ss_gadget_ep0_ops = {
+ .enable = usb_ss_gadget_ep0_enable,
+ .disable = usb_ss_gadget_ep0_disable,
+ .alloc_request = usb_ss_gadget_ep_alloc_request,
+ .free_request = usb_ss_gadget_ep_free_request,
+ .queue = usb_ss_gadget_ep0_queue,
+ .dequeue = usb_ss_gadget_ep_dequeue,
+ .set_halt = usb_ss_gadget_ep0_set_halt,
+ .set_wedge = usb_ss_gadget_ep_set_wedge,
+};
+
+static const struct usb_ep_ops usb_ss_gadget_ep_ops = {
+ .enable = usb_ss_gadget_ep_enable,
+ .disable = usb_ss_gadget_ep_disable,
+ .alloc_request = usb_ss_gadget_ep_alloc_request,
+ .free_request = usb_ss_gadget_ep_free_request,
+ .queue = usb_ss_gadget_ep_queue,
+ .dequeue = usb_ss_gadget_ep_dequeue,
+ .set_halt = usb_ss_gadget_ep_set_halt,
+ .set_wedge = usb_ss_gadget_ep_set_wedge,
+};
+
+/**
+ * usb_ss_gadget_get_frame Returns number of actual ITP frame
+ * @gadget: gadget object
+ *
+ * Returns number of actual ITP frame
+ */
+static int usb_ss_gadget_get_frame(struct usb_gadget *gadget)
+{
+ struct usb_ss_dev *usb_ss = gadget_to_usb_ss(gadget);
+
+ dev_dbg(&usb_ss->dev, "usb_ss_gadget_get_frame\n");
+ return gadget_readl(usb_ss, &usb_ss->regs->usb_iptn);
+}
+
+static int usb_ss_gadget_wakeup(struct usb_gadget *gadget)
+{
+ struct usb_ss_dev __maybe_unused *usb_ss = gadget_to_usb_ss(gadget);
+
+ dev_dbg(&usb_ss->dev, "usb_ss_gadget_wakeup\n");
+ return 0;
+}
+
+static int usb_ss_gadget_set_selfpowered(struct usb_gadget *gadget,
+ int is_selfpowered)
+{
+ struct usb_ss_dev __maybe_unused *usb_ss = gadget_to_usb_ss(gadget);
+
+ dev_dbg(&usb_ss->dev, "usb_ss_gadget_set_selfpowered: %d\n",
+ is_selfpowered);
+ return 0;
+}
+
+static int usb_ss_gadget_pullup(struct usb_gadget *gadget, int is_on)
+{
+ struct usb_ss_dev *usb_ss = gadget_to_usb_ss(gadget);
+
+ if (!usb_ss->start_gadget)
+ return 0;
+
+ dev_dbg(&usb_ss->dev, "usb_ss_gadget_pullup: %d\n", is_on);
+
+ if (is_on)
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf,
+ USB_CONF__DEVEN__MASK);
+ else
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf,
+ USB_CONF__DEVDS__MASK);
+
+ return 0;
+}
+
+/**
+ * usb_ss_gadget_udc_start Gadget start
+ * @gadget: gadget object
+ * @driver: driver which operates on this gadget
+ *
+ * Returns 0 on success, error code elsewhere
+ */
+static int usb_ss_gadget_udc_start(struct usb_gadget *gadget,
+ struct usb_gadget_driver *driver)
+{
+ struct usb_ss_dev *usb_ss = gadget_to_usb_ss(gadget);
+ unsigned long flags;
+
+ if (usb_ss->gadget_driver) {
+ dev_err(&usb_ss->dev, "%s is already bound\n",
+ usb_ss->gadget.name);
+ return -EBUSY;
+ }
+
+ dev_dbg(&usb_ss->dev, "%s begins\n", __func__);
+
+ spin_lock_irqsave(&usb_ss->lock, flags);
+ usb_ss->gadget_driver = driver;
+ if (!usb_ss->start_gadget) {
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+ return 0;
+ }
+
+ __cdns3_gadget_start(usb_ss);
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+ dev_dbg(&usb_ss->dev, "%s ends\n", __func__);
+
+ return 0;
+}
+
+/**
+ * usb_ss_gadget_udc_stop Stops gadget
+ * @gadget: gadget object
+ *
+ * Returns 0
+ */
+static int usb_ss_gadget_udc_stop(struct usb_gadget *gadget)
+{
+ struct usb_ss_dev *usb_ss = gadget_to_usb_ss(gadget);
+ struct usb_ep *ep;
+ struct usb_ss_endpoint *usb_ss_ep;
+ int i;
+ u32 bEndpointAddress;
+
+ usb_ss->gadget_driver = NULL;
+ if (!usb_ss->start_gadget)
+ return 0;
+
+ list_for_each_entry(ep, &usb_ss->gadget.ep_list, ep_list) {
+ usb_ss_ep = to_usb_ss_ep(ep);
+ bEndpointAddress = usb_ss_ep->num | usb_ss_ep->dir;
+ usb_ss_ep->used = false;
+ select_ep(usb_ss, bEndpointAddress);
+ gadget_writel(usb_ss, &usb_ss->regs->ep_cmd,
+ EP_CMD__EPRST__MASK);
+ while (gadget_readl(usb_ss, &usb_ss->regs->ep_cmd)
+ & EP_CMD__EPRST__MASK)
+ ;
+ }
+
+ /* disable interrupt for device */
+ gadget_writel(usb_ss, &usb_ss->regs->usb_ien, 0);
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf, USB_CONF__DEVDS__MASK);
+
+ for (i = 0; i < usb_ss->ep_nums ; i++)
+ usb_ss_free_trb_pool(usb_ss->eps[i]);
+
+ return 0;
+}
+
+static const struct usb_gadget_ops usb_ss_gadget_ops = {
+ .get_frame = usb_ss_gadget_get_frame,
+ .wakeup = usb_ss_gadget_wakeup,
+ .set_selfpowered = usb_ss_gadget_set_selfpowered,
+ .pullup = usb_ss_gadget_pullup,
+ .udc_start = usb_ss_gadget_udc_start,
+ .udc_stop = usb_ss_gadget_udc_stop,
+ .match_ep = usb_ss_gadget_match_ep,
+
+};
+
+/**
+ * usb_ss_init_ep Initializes software endpoints of gadget
+ * @usb_ss: extended gadget object
+ *
+ * Returns 0 on success, error code elsewhere
+ */
+static int usb_ss_init_ep(struct usb_ss_dev *usb_ss)
+{
+ struct usb_ss_endpoint *usb_ss_ep;
+ u32 ep_enabled_reg, iso_ep_reg, bulk_ep_reg;
+ int i;
+ int ep_reg_pos, ep_dir, ep_number;
+ int found_endpoints = 0;
+
+ /* Read it from USB_CAP3 to USB_CAP5 */
+ ep_enabled_reg = 0x00ff00ff;
+ iso_ep_reg = 0x00fe00fe;
+ bulk_ep_reg = 0x00fe00fe;
+
+ dev_dbg(&usb_ss->dev, "Initializing non-zero endpoints\n");
+ dev_dbg(&usb_ss->dev,
+ "ep_enabled_reg: 0x%x, iso_ep_reg: 0x%x, bulk_ep_reg:0x%x\n",
+ ep_enabled_reg, iso_ep_reg, bulk_ep_reg);
+
+ for (i = 0; i < USB_SS_ENDPOINTS_MAX_COUNT; i++) {
+ ep_number = (i / 2) + 1;
+ ep_dir = i % 2;
+ ep_reg_pos = (16 * ep_dir) + ep_number;
+
+ if (!(ep_enabled_reg & (1uL << ep_reg_pos)))
+ continue;
+
+ /* create empty endpoint object */
+ usb_ss_ep = devm_kzalloc(&usb_ss->dev, sizeof(*usb_ss_ep),
+ GFP_KERNEL);
+ if (!usb_ss_ep)
+ return -ENOMEM;
+
+ /* set parent of endpoint object */
+ usb_ss_ep->usb_ss = usb_ss;
+
+ /* set index of endpoint in endpoints container */
+ usb_ss->eps[found_endpoints++] = usb_ss_ep;
+
+ /* set name of endpoint */
+ snprintf(usb_ss_ep->name, sizeof(usb_ss_ep->name), "ep%d%s",
+ ep_number, !!ep_dir ? "in" : "out");
+ usb_ss_ep->endpoint.name = usb_ss_ep->name;
+ dev_dbg(&usb_ss->dev, "Initializing endpoint: %s\n",
+ usb_ss_ep->name);
+
+ usb_ep_set_maxpacket_limit(&usb_ss_ep->endpoint,
+ ENDPOINT_MAX_PACKET_LIMIT);
+ usb_ss_ep->endpoint.max_streams = ENDPOINT_MAX_STREAMS;
+ usb_ss_ep->endpoint.ops = &usb_ss_gadget_ep_ops;
+ if (ep_dir)
+ usb_ss_ep->caps.dir_in = 1;
+ else
+ usb_ss_ep->caps.dir_out = 1;
+
+ /* check endpoint type */
+ if (iso_ep_reg & (1uL << ep_reg_pos))
+ usb_ss_ep->caps.type_iso = 1;
+
+ if (bulk_ep_reg & (1uL << ep_reg_pos)) {
+ usb_ss_ep->caps.type_bulk = 1;
+ usb_ss_ep->caps.type_int = 1;
+ usb_ss_ep->endpoint.maxburst = 15;
+ }
+
+ list_add_tail(&usb_ss_ep->endpoint.ep_list,
+ &usb_ss->gadget.ep_list);
+ INIT_LIST_HEAD(&usb_ss_ep->request_list);
+ INIT_LIST_HEAD(&usb_ss_ep->ep_match_pending_list);
+ }
+ usb_ss->ep_nums = found_endpoints;
+ return 0;
+}
+
+/**
+ * usb_ss_init_ep0 Initializes software endpoint 0 of gadget
+ * @usb_ss: extended gadget object
+ *
+ * Returns 0 on success, error code elsewhere
+ */
+static int usb_ss_init_ep0(struct usb_ss_dev *usb_ss)
+{
+ struct usb_ss_endpoint *ep0;
+
+ dev_dbg(&usb_ss->dev, "Initializing EP0\n");
+ ep0 = devm_kzalloc(&usb_ss->dev, sizeof(struct usb_ss_endpoint),
+ GFP_KERNEL);
+
+ if (!ep0)
+ return -ENOMEM;
+
+ /* fill CDNS fields */
+ ep0->usb_ss = usb_ss;
+ sprintf(ep0->name, "ep0");
+
+ /* fill linux fields */
+ ep0->endpoint.ops = &usb_ss_gadget_ep0_ops;
+ ep0->endpoint.maxburst = 1;
+ usb_ep_set_maxpacket_limit(&ep0->endpoint, ENDPOINT0_MAX_PACKET_LIMIT);
+ ep0->address = 0;
+ ep0->enabled = 1;
+ ep0->caps.type_control = 1;
+ ep0->caps.dir_in = 1;
+ ep0->caps.dir_out = 1;
+ ep0->endpoint.name = ep0->name;
+ ep0->endpoint.desc = &cdns3_gadget_ep0_desc;
+
+ usb_ss->gadget.ep0 = &ep0->endpoint;
+
+ return 0;
+}
+
+static void cdns3_gadget_release(struct device *dev)
+{
+ struct usb_ss_dev *usb_ss = container_of(dev, struct usb_ss_dev, dev);
+
+ kfree(usb_ss);
+}
+
+static int __cdns3_gadget_init(struct cdns3 *cdns)
+{
+ struct usb_ss_dev *usb_ss;
+ int ret;
+ struct device *dev;
+
+ usb_ss = kzalloc(sizeof(*usb_ss), GFP_KERNEL);
+ if (!usb_ss)
+ return -ENOMEM;
+
+ dev = &usb_ss->dev;
+ dev->release = cdns3_gadget_release;
+ dev->parent = cdns->dev;
+ dev_set_name(dev, "gadget-cdns3-dev");
+ cdns->gadget_dev = dev;
+ usb_ss->sysdev = cdns->dev;
+ ret = device_register(dev);
+ if (ret)
+ goto err1;
+
+ usb_ss->regs = cdns->dev_regs;
+
+ /* fill gadget fields */
+ usb_ss->gadget.ops = &usb_ss_gadget_ops;
+ usb_ss->gadget.max_speed = USB_SPEED_SUPER;
+ usb_ss->gadget.speed = USB_SPEED_UNKNOWN;
+ usb_ss->gadget.name = "cdns3-gadget";
+ usb_ss->is_connected = 0;
+ spin_lock_init(&usb_ss->lock);
+
+ usb_ss->in_standby_mode = 1;
+
+ /* initialize endpoint container */
+ INIT_LIST_HEAD(&usb_ss->gadget.ep_list);
+ INIT_LIST_HEAD(&usb_ss->ep_match_list);
+ ret = usb_ss_init_ep0(usb_ss);
+ if (ret) {
+ dev_err(dev, "Failed to create endpoint 0\n");
+ ret = -ENOMEM;
+ goto err2;
+ }
+
+ ret = usb_ss_init_ep(usb_ss);
+ if (ret) {
+ dev_err(dev, "Failed to create non zero endpoints\n");
+ ret = -ENOMEM;
+ goto err2;
+ }
+
+ /* allocate memory for default endpoint TRB */
+ usb_ss->trb_ep0 = (u32 *)dma_alloc_coherent(20, (unsigned long *)&usb_ss->trb_ep0_dma);
+ if (!usb_ss->trb_ep0) {
+ dev_err(dev, "Failed to allocate memory for ep0 TRB\n");
+ ret = -ENOMEM;
+ goto err2;
+ }
+
+ /* allocate memory for setup packet buffer */
+ usb_ss->setup = (u8 *)dma_alloc_coherent(8, (unsigned long *)&usb_ss->setup_dma);
+ if (!usb_ss->setup) {
+ dev_err(dev, "Failed to allocate memory for SETUP buffer\n");
+ ret = -ENOMEM;
+ goto err3;
+ }
+
+ /* add USB gadget device */
+ ret = usb_add_gadget_udc(&usb_ss->dev, &usb_ss->gadget);
+ if (ret < 0) {
+ dev_err(dev, "Failed to register USB device controller\n");
+ goto err4;
+ }
+
+ return 0;
+
+err4:
+ dma_free_coherent(usb_ss->setup);
+err3:
+ dma_free_coherent(usb_ss->trb_ep0);
+err2:
+err1:
+ cdns->gadget_dev = NULL;
+
+ return ret;
+}
+
+/**
+ * cdns3_gadget_remove: parent must call this to remove UDC
+ *
+ * cdns: cdns3 instance
+ *
+ */
+void cdns3_gadget_remove(struct cdns3 *cdns)
+{
+ struct usb_ss_dev *usb_ss;
+
+ if (!cdns->roles[CDNS3_ROLE_GADGET])
+ return;
+
+ usb_ss = container_of(cdns->gadget_dev, struct usb_ss_dev, dev);
+ usb_del_gadget_udc(&usb_ss->gadget);
+ dma_free_coherent(usb_ss->setup);
+ dma_free_coherent(usb_ss->trb_ep0);
+ device_unregister(cdns->gadget_dev);
+ cdns->gadget_dev = NULL;
+}
+
+static void __cdns3_gadget_start(struct usb_ss_dev *usb_ss)
+{
+ /* configure endpoint 0 hardware */
+ cdns_ep0_config(usb_ss);
+
+ /* enable interrupts for endpoint 0 (in and out) */
+ gadget_writel(usb_ss, &usb_ss->regs->ep_ien,
+ EP_IEN__EOUTEN0__MASK | EP_IEN__EINEN0__MASK);
+
+ /* enable interrupt for device */
+ gadget_writel(usb_ss, &usb_ss->regs->usb_ien,
+ USB_IEN__U2RESIEN__MASK
+ | USB_ISTS__DIS2I__MASK
+ | USB_IEN__CON2IEN__MASK
+ | USB_IEN__UHRESIEN__MASK
+ | USB_IEN__UWRESIEN__MASK
+ | USB_IEN__DISIEN__MASK
+ | USB_IEN__CONIEN__MASK
+ | USB_IEN__U3EXTIEN__MASK
+ | USB_IEN__L2ENTIEN__MASK
+ | USB_IEN__L2EXTIEN__MASK);
+
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf,
+ USB_CONF__CLK2OFFDS__MASK
+#ifdef CONFIG_USB_CDNS3_GADGET_FORCE_HIGHSPEED
+ | USB_CONF__USB3DIS__MASK
+#endif
+ | USB_CONF__L1DS__MASK);
+
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf,
+ USB_CONF__U1DS__MASK
+ | USB_CONF__U2DS__MASK
+ /*
+ * TODO:
+ * | USB_CONF__L1EN__MASK
+ */
+ );
+
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf, USB_CONF__DEVEN__MASK);
+
+ gadget_writel(usb_ss, &usb_ss->regs->dbg_link1,
+ DBG_LINK1__LFPS_MIN_GEN_U1_EXIT_SET__MASK |
+ DBG_LINK1__LFPS_MIN_GEN_U1_EXIT__WRITE(0x3C));
+}
+
+static int cdns3_gadget_start(struct cdns3 *cdns)
+{
+ struct usb_ss_dev *usb_ss = container_of(cdns->gadget_dev,
+ struct usb_ss_dev, dev);
+ unsigned long flags;
+
+ dev_dbg(&usb_ss->dev, "%s begins\n", __func__);
+
+ pm_runtime_get_sync(cdns->dev);
+ spin_lock_irqsave(&usb_ss->lock, flags);
+ usb_ss->start_gadget = 1;
+ if (!usb_ss->gadget_driver) {
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+ return 0;
+ }
+
+ __cdns3_gadget_start(usb_ss);
+ usb_ss->in_standby_mode = 0;
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+ dev_dbg(&usb_ss->dev, "%s ends\n", __func__);
+
+ return 0;
+}
+
+static void __cdns3_gadget_stop(struct cdns3 *cdns)
+{
+ struct usb_ss_dev *usb_ss;
+ unsigned long flags;
+
+ usb_ss = container_of(cdns->gadget_dev, struct usb_ss_dev, dev);
+ if (usb_ss->gadget_driver)
+ usb_ss->gadget_driver->disconnect(&usb_ss->gadget);
+ usb_gadget_disconnect(&usb_ss->gadget);
+ spin_lock_irqsave(&usb_ss->lock, flags);
+ /* disable interrupt for device */
+ gadget_writel(usb_ss, &usb_ss->regs->usb_ien, 0);
+ gadget_writel(usb_ss, &usb_ss->regs->usb_conf, USB_CONF__DEVDS__MASK);
+ usb_ss->start_gadget = 0;
+ spin_unlock_irqrestore(&usb_ss->lock, flags);
+}
+
+static void cdns3_gadget_stop(struct cdns3 *cdns)
+{
+ if (cdns->role == CDNS3_ROLE_GADGET)
+ __cdns3_gadget_stop(cdns);
+}
+
+/**
+ * cdns3_gadget_init - initialize device structure
+ *
+ * cdns: cdns3 instance
+ *
+ * This function initializes the gadget.
+ */
+int cdns3_gadget_init(struct cdns3 *cdns)
+{
+ struct cdns3_role_driver *rdrv;
+
+ rdrv = devm_kzalloc(cdns->dev, sizeof(*rdrv), GFP_KERNEL);
+ if (!rdrv)
+ return -ENOMEM;
+
+ rdrv->start = cdns3_gadget_start;
+ rdrv->stop = cdns3_gadget_stop;
+ rdrv->irq = cdns_irq_handler_thread;
+ rdrv->name = "gadget";
+ cdns->roles[CDNS3_ROLE_GADGET] = rdrv;
+ return __cdns3_gadget_init(cdns);
+}
projects / u-boot.git / commitdiff