/* SPDX-License-Identifier: GPL-2.0+ */ #ifndef __ASPEED_VHUB_H #define __ASPEED_VHUB_H #include <linux/usb.h> #include <linux/usb/ch11.h> /***************************** * * * VHUB register definitions * * * *****************************/ #define AST_VHUB_CTRL … #define AST_VHUB_CONF … #define AST_VHUB_IER … #define AST_VHUB_ISR … #define AST_VHUB_EP_ACK_IER … #define AST_VHUB_EP_NACK_IER … #define AST_VHUB_EP_ACK_ISR … #define AST_VHUB_EP_NACK_ISR … #define AST_VHUB_SW_RESET … #define AST_VHUB_USBSTS … #define AST_VHUB_EP_TOGGLE … #define AST_VHUB_ISO_FAIL_ACC … #define AST_VHUB_EP0_CTRL … #define AST_VHUB_EP0_DATA … #define AST_VHUB_EP1_CTRL … #define AST_VHUB_EP1_STS_CHG … #define AST_VHUB_SETUP0 … #define AST_VHUB_SETUP1 … /* Main control reg */ #define VHUB_CTRL_PHY_CLK … #define VHUB_CTRL_PHY_LOOP_TEST … #define VHUB_CTRL_DN_PWN … #define VHUB_CTRL_DP_PWN … #define VHUB_CTRL_LONG_DESC … #define VHUB_CTRL_ISO_RSP_CTRL … #define VHUB_CTRL_SPLIT_IN … #define VHUB_CTRL_LOOP_T_RESULT … #define VHUB_CTRL_LOOP_T_STS … #define VHUB_CTRL_PHY_BIST_RESULT … #define VHUB_CTRL_PHY_BIST_CTRL … #define VHUB_CTRL_PHY_RESET_DIS … #define VHUB_CTRL_SET_TEST_MODE(x) … #define VHUB_CTRL_MANUAL_REMOTE_WAKEUP … #define VHUB_CTRL_AUTO_REMOTE_WAKEUP … #define VHUB_CTRL_CLK_STOP_SUSPEND … #define VHUB_CTRL_FULL_SPEED_ONLY … #define VHUB_CTRL_UPSTREAM_CONNECT … /* IER & ISR */ #define VHUB_IRQ_DEV1_BIT … #define VHUB_IRQ_USB_CMD_DEADLOCK … #define VHUB_IRQ_EP_POOL_NAK … #define VHUB_IRQ_EP_POOL_ACK_STALL … #define VHUB_IRQ_DEVICE1 … #define VHUB_IRQ_BUS_RESUME … #define VHUB_IRQ_BUS_SUSPEND … #define VHUB_IRQ_BUS_RESET … #define VHUB_IRQ_HUB_EP1_IN_DATA_ACK … #define VHUB_IRQ_HUB_EP0_IN_DATA_NAK … #define VHUB_IRQ_HUB_EP0_IN_ACK_STALL … #define VHUB_IRQ_HUB_EP0_OUT_NAK … #define VHUB_IRQ_HUB_EP0_OUT_ACK_STALL … #define VHUB_IRQ_HUB_EP0_SETUP … #define VHUB_IRQ_ACK_ALL … /* Downstream device IRQ mask. */ #define VHUB_DEV_IRQ(n) … /* SW reset reg */ #define VHUB_SW_RESET_EP_POOL … #define VHUB_SW_RESET_DMA_CONTROLLER … #define VHUB_SW_RESET_DEVICE5 … #define VHUB_SW_RESET_DEVICE4 … #define VHUB_SW_RESET_DEVICE3 … #define VHUB_SW_RESET_DEVICE2 … #define VHUB_SW_RESET_DEVICE1 … #define VHUB_SW_RESET_ROOT_HUB … /* EP ACK/NACK IRQ masks */ #define VHUB_EP_IRQ(n) … /* USB status reg */ #define VHUB_USBSTS_HISPEED … /* EP toggle */ #define VHUB_EP_TOGGLE_VALUE … #define VHUB_EP_TOGGLE_SET_EPNUM(x) … /* HUB EP0 control */ #define VHUB_EP0_CTRL_STALL … #define VHUB_EP0_TX_BUFF_RDY … #define VHUB_EP0_RX_BUFF_RDY … #define VHUB_EP0_RX_LEN(x) … #define VHUB_EP0_SET_TX_LEN(x) … /* HUB EP1 control */ #define VHUB_EP1_CTRL_RESET_TOGGLE … #define VHUB_EP1_CTRL_STALL … #define VHUB_EP1_CTRL_ENABLE … /*********************************** * * * per-device register definitions * * * ***********************************/ #define AST_VHUB_DEV_EN_CTRL … #define AST_VHUB_DEV_ISR … #define AST_VHUB_DEV_EP0_CTRL … #define AST_VHUB_DEV_EP0_DATA … /* Device enable control */ #define VHUB_DEV_EN_SET_ADDR(x) … #define VHUB_DEV_EN_ADDR_MASK … #define VHUB_DEV_EN_EP0_NAK_IRQEN … #define VHUB_DEV_EN_EP0_IN_ACK_IRQEN … #define VHUB_DEV_EN_EP0_OUT_NAK_IRQEN … #define VHUB_DEV_EN_EP0_OUT_ACK_IRQEN … #define VHUB_DEV_EN_EP0_SETUP_IRQEN … #define VHUB_DEV_EN_SPEED_SEL_HIGH … #define VHUB_DEV_EN_ENABLE_PORT … /* Interrupt status */ #define VHUV_DEV_IRQ_EP0_IN_DATA_NACK … #define VHUV_DEV_IRQ_EP0_IN_ACK_STALL … #define VHUV_DEV_IRQ_EP0_OUT_DATA_NACK … #define VHUV_DEV_IRQ_EP0_OUT_ACK_STALL … #define VHUV_DEV_IRQ_EP0_SETUP … /* Control bits. * * Note: The driver relies on the bulk of those bits * matching corresponding vHub EP0 control bits */ #define VHUB_DEV_EP0_CTRL_STALL … #define VHUB_DEV_EP0_TX_BUFF_RDY … #define VHUB_DEV_EP0_RX_BUFF_RDY … #define VHUB_DEV_EP0_RX_LEN(x) … #define VHUB_DEV_EP0_SET_TX_LEN(x) … /************************************* * * * per-endpoint register definitions * * * *************************************/ #define AST_VHUB_EP_CONFIG … #define AST_VHUB_EP_DMA_CTLSTAT … #define AST_VHUB_EP_DESC_BASE … #define AST_VHUB_EP_DESC_STATUS … /* EP config reg */ #define VHUB_EP_CFG_SET_MAX_PKT(x) … #define VHUB_EP_CFG_AUTO_DATA_DISABLE … #define VHUB_EP_CFG_STALL_CTRL … #define VHUB_EP_CFG_SET_EP_NUM(x) … #define VHUB_EP_CFG_SET_TYPE(x) … #define EP_TYPE_OFF … #define EP_TYPE_BULK … #define EP_TYPE_INT … #define EP_TYPE_ISO … #define VHUB_EP_CFG_DIR_OUT … #define VHUB_EP_CFG_SET_DEV(x) … #define VHUB_EP_CFG_ENABLE … /* EP DMA control */ #define VHUB_EP_DMA_PROC_STATUS(x) … #define EP_DMA_PROC_RX_IDLE … #define EP_DMA_PROC_TX_IDLE … #define VHUB_EP_DMA_IN_LONG_MODE … #define VHUB_EP_DMA_OUT_CONTIG_MODE … #define VHUB_EP_DMA_CTRL_RESET … #define VHUB_EP_DMA_SINGLE_STAGE … #define VHUB_EP_DMA_DESC_MODE … /* EP DMA status */ #define VHUB_EP_DMA_SET_TX_SIZE(x) … #define VHUB_EP_DMA_TX_SIZE(x) … #define VHUB_EP_DMA_RPTR(x) … #define VHUB_EP_DMA_SET_RPTR(x) … #define VHUB_EP_DMA_SET_CPU_WPTR(x) … #define VHUB_EP_DMA_SINGLE_KICK … /******************************* * * * DMA descriptors definitions * * * *******************************/ /* Desc W1 IN */ #define VHUB_DSC1_IN_INTERRUPT … #define VHUB_DSC1_IN_SPID_DATA0 … #define VHUB_DSC1_IN_SPID_DATA2 … #define VHUB_DSC1_IN_SPID_DATA1 … #define VHUB_DSC1_IN_SPID_MDATA … #define VHUB_DSC1_IN_SET_LEN(x) … #define VHUB_DSC1_IN_LEN(x) … /**************************************** * * * Data structures and misc definitions * * * ****************************************/ /* * AST_VHUB_NUM_GEN_EPs and AST_VHUB_NUM_PORTS are kept to avoid breaking * existing AST2400/AST2500 platforms. AST2600 and future vhub revisions * should define number of downstream ports and endpoints in device tree. */ #define AST_VHUB_NUM_GEN_EPs … #define AST_VHUB_NUM_PORTS … #define AST_VHUB_EP0_MAX_PACKET … #define AST_VHUB_EPn_MAX_PACKET … #define AST_VHUB_DESCS_COUNT … struct ast_vhub; struct ast_vhub_dev; /* * DMA descriptor (generic EPs only, currently only used * for IN endpoints */ struct ast_vhub_desc { … }; /* A transfer request, either core-originated or internal */ struct ast_vhub_req { … }; #define to_ast_req(__ureq) … /* Current state of an EP0 */ enum ep0_state { … }; /* * An endpoint, either generic, ep0, actual gadget EP * or internal use vhub EP0. vhub EP1 doesn't have an * associated structure as it's mostly HW managed. */ struct ast_vhub_ep { … }; #define to_ast_ep(__uep) … /* A device attached to a vHub port */ struct ast_vhub_dev { … }; #define to_ast_dev(__g) … /* Per vhub port stateinfo structure */ struct ast_vhub_port { … }; struct ast_vhub_full_cdesc { … } __packed; /* Global vhub structure */ struct ast_vhub { … }; /* Standard request handlers result codes */ enum std_req_rc { … }; #ifdef CONFIG_USB_GADGET_VERBOSE #define UDCVDBG(u, fmt...) … #define EPVDBG(ep, fmt, ...) … #define DVDBG(d, fmt, ...) … #else #define UDCVDBG … #define EPVDBG … #define DVDBG … #endif #ifdef CONFIG_USB_GADGET_DEBUG #define UDCDBG(u, fmt...) … #define EPDBG(ep, fmt, ...) … #define DDBG(d, fmt, ...) … #else #define UDCDBG … #define EPDBG … #define DDBG … #endif static inline void vhub_dma_workaround(void *addr) { … } /* core.c */ void ast_vhub_done(struct ast_vhub_ep *ep, struct ast_vhub_req *req, int status); void ast_vhub_nuke(struct ast_vhub_ep *ep, int status); struct usb_request *ast_vhub_alloc_request(struct usb_ep *u_ep, gfp_t gfp_flags); void ast_vhub_free_request(struct usb_ep *u_ep, struct usb_request *u_req); void ast_vhub_init_hw(struct ast_vhub *vhub); /* ep0.c */ void ast_vhub_ep0_handle_ack(struct ast_vhub_ep *ep, bool in_ack); void ast_vhub_ep0_handle_setup(struct ast_vhub_ep *ep); void ast_vhub_reset_ep0(struct ast_vhub_dev *dev); void ast_vhub_init_ep0(struct ast_vhub *vhub, struct ast_vhub_ep *ep, struct ast_vhub_dev *dev); int ast_vhub_reply(struct ast_vhub_ep *ep, char *ptr, int len); int __ast_vhub_simple_reply(struct ast_vhub_ep *ep, int len, ...); #define ast_vhub_simple_reply(udc, ...) … /* hub.c */ int ast_vhub_init_hub(struct ast_vhub *vhub); enum std_req_rc ast_vhub_std_hub_request(struct ast_vhub_ep *ep, struct usb_ctrlrequest *crq); enum std_req_rc ast_vhub_class_hub_request(struct ast_vhub_ep *ep, struct usb_ctrlrequest *crq); void ast_vhub_device_connect(struct ast_vhub *vhub, unsigned int port, bool on); void ast_vhub_hub_suspend(struct ast_vhub *vhub); void ast_vhub_hub_resume(struct ast_vhub *vhub); void ast_vhub_hub_reset(struct ast_vhub *vhub); void ast_vhub_hub_wake_all(struct ast_vhub *vhub); /* dev.c */ int ast_vhub_init_dev(struct ast_vhub *vhub, unsigned int idx); void ast_vhub_del_dev(struct ast_vhub_dev *d); void ast_vhub_dev_irq(struct ast_vhub_dev *d); int ast_vhub_std_dev_request(struct ast_vhub_ep *ep, struct usb_ctrlrequest *crq); /* epn.c */ void ast_vhub_epn_ack_irq(struct ast_vhub_ep *ep); void ast_vhub_update_epn_stall(struct ast_vhub_ep *ep); struct ast_vhub_ep *ast_vhub_alloc_epn(struct ast_vhub_dev *d, u8 addr); void ast_vhub_dev_suspend(struct ast_vhub_dev *d); void ast_vhub_dev_resume(struct ast_vhub_dev *d); void ast_vhub_dev_reset(struct ast_vhub_dev *d); #endif /* __ASPEED_VHUB_H */
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