// SPDX-License-Identifier: GPL-2.0 /* * Renesas USB3.0 Peripheral driver (USB gadget) * * Copyright (C) 2015-2017 Renesas Electronics Corporation */ #include <linux/debugfs.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/dma-mapping.h> #include <linux/err.h> #include <linux/extcon-provider.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/module.h> #include <linux/of.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/reset.h> #include <linux/sizes.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/uaccess.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> #include <linux/usb/of.h> #include <linux/usb/role.h> #include <linux/usb/rzv2m_usb3drd.h> /* register definitions */ #define USB3_AXI_INT_STA … #define USB3_AXI_INT_ENA … #define USB3_DMA_INT_STA … #define USB3_DMA_INT_ENA … #define USB3_DMA_CH0_CON(n) … #define USB3_DMA_CH0_PRD_ADR(n) … #define USB3_USB_COM_CON … #define USB3_USB20_CON … #define USB3_USB30_CON … #define USB3_USB_STA … #define USB3_DRD_CON(p) … #define USB3_USB_INT_STA_1 … #define USB3_USB_INT_STA_2 … #define USB3_USB_INT_ENA_1 … #define USB3_USB_INT_ENA_2 … #define USB3_STUP_DAT_0 … #define USB3_STUP_DAT_1 … #define USB3_USB_OTG_STA(p) … #define USB3_USB_OTG_INT_STA(p) … #define USB3_USB_OTG_INT_ENA(p) … #define USB3_P0_MOD … #define USB3_P0_CON … #define USB3_P0_STA … #define USB3_P0_INT_STA … #define USB3_P0_INT_ENA … #define USB3_P0_LNG … #define USB3_P0_READ … #define USB3_P0_WRITE … #define USB3_PIPE_COM … #define USB3_PN_MOD … #define USB3_PN_RAMMAP … #define USB3_PN_CON … #define USB3_PN_STA … #define USB3_PN_INT_STA … #define USB3_PN_INT_ENA … #define USB3_PN_LNG … #define USB3_PN_READ … #define USB3_PN_WRITE … #define USB3_SSIFCMD … /* AXI_INT_ENA and AXI_INT_STA */ #define AXI_INT_DMAINT … #define AXI_INT_EPCINT … /* PRD's n = from 1 to 4 */ #define AXI_INT_PRDEN_CLR_STA_SHIFT(n) … #define AXI_INT_PRDERR_STA_SHIFT(n) … #define AXI_INT_PRDEN_CLR_STA(n) … #define AXI_INT_PRDERR_STA(n) … /* DMA_INT_ENA and DMA_INT_STA */ #define DMA_INT(n) … /* DMA_CH0_CONn */ #define DMA_CON_PIPE_DIR … #define DMA_CON_PIPE_NO_SHIFT … #define DMA_CON_PIPE_NO_MASK … #define DMA_COM_PIPE_NO(n) … #define DMA_CON_PRD_EN … /* LCLKSEL */ #define LCLKSEL_LSEL … /* USB_COM_CON */ #define USB_COM_CON_CONF … #define USB_COM_CON_PN_WDATAIF_NL … #define USB_COM_CON_PN_RDATAIF_NL … #define USB_COM_CON_PN_LSTTR_PP … #define USB_COM_CON_SPD_MODE … #define USB_COM_CON_EP0_EN … #define USB_COM_CON_DEV_ADDR_SHIFT … #define USB_COM_CON_DEV_ADDR_MASK … #define USB_COM_CON_DEV_ADDR(n) … #define USB_COM_CON_RX_DETECTION … #define USB_COM_CON_PIPE_CLR … /* USB20_CON */ #define USB20_CON_B2_PUE … #define USB20_CON_B2_SUSPEND … #define USB20_CON_B2_CONNECT … #define USB20_CON_B2_TSTMOD_SHIFT … #define USB20_CON_B2_TSTMOD_MASK … #define USB20_CON_B2_TSTMOD(n) … #define USB20_CON_B2_TSTMOD_EN … /* USB30_CON */ #define USB30_CON_POW_SEL_SHIFT … #define USB30_CON_POW_SEL_MASK … #define USB30_CON_POW_SEL_IN_U3 … #define USB30_CON_POW_SEL_IN_DISCON … #define USB30_CON_POW_SEL_P2_TO_P0 … #define USB30_CON_POW_SEL_P0_TO_P3 … #define USB30_CON_POW_SEL_P0_TO_P2 … #define USB30_CON_B3_PLLWAKE … #define USB30_CON_B3_CONNECT … #define USB30_CON_B3_HOTRST_CMP … /* USB_STA */ #define USB_STA_SPEED_MASK … #define USB_STA_SPEED_HS … #define USB_STA_SPEED_FS … #define USB_STA_SPEED_SS … #define USB_STA_VBUS_STA … /* DRD_CON */ #define DRD_CON_PERI_RST … #define DRD_CON_HOST_RST … #define DRD_CON_PERI_CON … #define DRD_CON_VBOUT … /* USB_INT_ENA_1 and USB_INT_STA_1 */ #define USB_INT_1_B3_PLLWKUP … #define USB_INT_1_B3_LUPSUCS … #define USB_INT_1_B3_DISABLE … #define USB_INT_1_B3_WRMRST … #define USB_INT_1_B3_HOTRST … #define USB_INT_1_B2_USBRST … #define USB_INT_1_B2_L1SPND … #define USB_INT_1_B2_SPND … #define USB_INT_1_B2_RSUM … #define USB_INT_1_SPEED … #define USB_INT_1_VBUS_CNG … /* USB_INT_ENA_2 and USB_INT_STA_2 */ #define USB_INT_2_PIPE(n) … /* USB_OTG_STA, USB_OTG_INT_STA and USB_OTG_INT_ENA */ #define USB_OTG_IDMON(p) … /* P0_MOD */ #define P0_MOD_DIR … /* P0_CON and PN_CON */ #define PX_CON_BYTE_EN_MASK … #define PX_CON_BYTE_EN_SHIFT … #define PX_CON_BYTE_EN_BYTES(n) … #define PX_CON_SEND … /* P0_CON */ #define P0_CON_ST_RES_MASK … #define P0_CON_ST_RES_FORCE_STALL … #define P0_CON_ST_RES_NORMAL … #define P0_CON_ST_RES_FORCE_NRDY … #define P0_CON_OT_RES_MASK … #define P0_CON_OT_RES_FORCE_STALL … #define P0_CON_OT_RES_NORMAL … #define P0_CON_OT_RES_FORCE_NRDY … #define P0_CON_IN_RES_MASK … #define P0_CON_IN_RES_FORCE_STALL … #define P0_CON_IN_RES_NORMAL … #define P0_CON_IN_RES_FORCE_NRDY … #define P0_CON_RES_WEN … #define P0_CON_BCLR … /* P0_STA and PN_STA */ #define PX_STA_BUFSTS … /* P0_INT_ENA and P0_INT_STA */ #define P0_INT_STSED … #define P0_INT_STSST … #define P0_INT_SETUP … #define P0_INT_RCVNL … #define P0_INT_ERDY … #define P0_INT_FLOW … #define P0_INT_STALL … #define P0_INT_NRDY … #define P0_INT_BFRDY … #define P0_INT_ALL_BITS … /* PN_MOD */ #define PN_MOD_DIR … #define PN_MOD_TYPE_SHIFT … #define PN_MOD_TYPE_MASK … #define PN_MOD_TYPE(n) … #define PN_MOD_EPNUM_MASK … #define PN_MOD_EPNUM(n) … /* PN_RAMMAP */ #define PN_RAMMAP_RAMAREA_SHIFT … #define PN_RAMMAP_RAMAREA_MASK … #define PN_RAMMAP_RAMAREA_16KB … #define PN_RAMMAP_RAMAREA_8KB … #define PN_RAMMAP_RAMAREA_4KB … #define PN_RAMMAP_RAMAREA_2KB … #define PN_RAMMAP_RAMAREA_1KB … #define PN_RAMMAP_MPKT_SHIFT … #define PN_RAMMAP_MPKT_MASK … #define PN_RAMMAP_MPKT(n) … #define PN_RAMMAP_RAMIF_SHIFT … #define PN_RAMMAP_RAMIF_MASK … #define PN_RAMMAP_RAMIF(n) … #define PN_RAMMAP_BASEAD_MASK … #define PN_RAMMAP_BASEAD(offs) … #define PN_RAMMAP_DATA(area, ramif, basead) … /* PN_CON */ #define PN_CON_EN … #define PN_CON_DATAIF_EN … #define PN_CON_RES_MASK … #define PN_CON_RES_FORCE_STALL … #define PN_CON_RES_NORMAL … #define PN_CON_RES_FORCE_NRDY … #define PN_CON_LAST … #define PN_CON_RES_WEN … #define PN_CON_CLR … /* PN_INT_STA and PN_INT_ENA */ #define PN_INT_LSTTR … #define PN_INT_BFRDY … /* USB3_SSIFCMD */ #define SSIFCMD_URES_U2 … #define SSIFCMD_URES_U1 … #define SSIFCMD_UDIR_U2 … #define SSIFCMD_UDIR_U1 … #define SSIFCMD_UREQ_U2 … #define SSIFCMD_UREQ_U1 … #define USB3_EP0_SS_MAX_PACKET_SIZE … #define USB3_EP0_HSFS_MAX_PACKET_SIZE … #define USB3_EP0_BUF_SIZE … #define USB3_MAX_NUM_PIPES(p) … #define USB3_WAIT_US … #define USB3_DMA_NUM_SETTING_AREA … /* * To avoid double-meaning of "0" (xferred 65536 bytes or received zlp if * buffer size is 65536), this driver uses the maximum size per a entry is * 32768 bytes. */ #define USB3_DMA_MAX_XFER_SIZE … #define USB3_DMA_PRD_SIZE … struct renesas_usb3; /* Physical Region Descriptor Table */ struct renesas_usb3_prd { … }; #define USB3_DMA_NUM_PRD_ENTRIES … #define USB3_DMA_MAX_XFER_SIZE_ALL_PRDS … struct renesas_usb3_dma { … }; struct renesas_usb3_request { … }; #define USB3_EP_NAME_SIZE … struct renesas_usb3_ep { … }; struct renesas_usb3_priv { … }; struct renesas_usb3 { … }; #define gadget_to_renesas_usb3(_gadget) … #define renesas_usb3_to_gadget(renesas_usb3) … #define usb3_to_dev(_usb3) … #define usb_ep_to_usb3_ep(_ep) … #define usb3_ep_to_usb3(_usb3_ep) … #define usb_req_to_usb3_req(_req) … #define usb3_get_ep(usb3, n) … #define usb3_for_each_ep(usb3_ep, usb3, i) … #define usb3_get_dma(usb3, i) … #define usb3_for_each_dma(usb3, dma, i) … static const char udc_name[] = …; static bool use_dma = …; module_param(use_dma, bool, 0644); MODULE_PARM_DESC(…) …; static void usb3_write(struct renesas_usb3 *usb3, u32 data, u32 offs) { … } static u32 usb3_read(struct renesas_usb3 *usb3, u32 offs) { … } static void usb3_set_bit(struct renesas_usb3 *usb3, u32 bits, u32 offs) { … } static void usb3_clear_bit(struct renesas_usb3 *usb3, u32 bits, u32 offs) { … } static void usb3_drd_write(struct renesas_usb3 *usb3, u32 data, u32 offs) { … } static u32 usb3_drd_read(struct renesas_usb3 *usb3, u32 offs) { … } static void usb3_drd_set_bit(struct renesas_usb3 *usb3, u32 bits, u32 offs) { … } static void usb3_drd_clear_bit(struct renesas_usb3 *usb3, u32 bits, u32 offs) { … } static int usb3_wait(struct renesas_usb3 *usb3, u32 reg, u32 mask, u32 expected) { … } static void renesas_usb3_extcon_work(struct work_struct *work) { … } static void usb3_enable_irq_1(struct renesas_usb3 *usb3, u32 bits) { … } static void usb3_disable_irq_1(struct renesas_usb3 *usb3, u32 bits) { … } static void usb3_enable_pipe_irq(struct renesas_usb3 *usb3, int num) { … } static void usb3_disable_pipe_irq(struct renesas_usb3 *usb3, int num) { … } static bool usb3_is_host(struct renesas_usb3 *usb3) { … } static void usb3_init_axi_bridge(struct renesas_usb3 *usb3) { … } static void usb3_init_epc_registers(struct renesas_usb3 *usb3) { … } static bool usb3_wakeup_usb2_phy(struct renesas_usb3 *usb3) { … } static void usb3_usb2_pullup(struct renesas_usb3 *usb3, int pullup) { … } static void usb3_set_test_mode(struct renesas_usb3 *usb3) { … } static void usb3_start_usb2_connection(struct renesas_usb3 *usb3) { … } static int usb3_is_usb3_phy_in_u3(struct renesas_usb3 *usb3) { … } static bool usb3_wakeup_usb3_phy(struct renesas_usb3 *usb3) { … } static u16 usb3_feature_get_un_enabled(struct renesas_usb3 *usb3) { … } static void usb3_feature_u2_enable(struct renesas_usb3 *usb3, bool enable) { … } static void usb3_feature_u1_enable(struct renesas_usb3 *usb3, bool enable) { … } static void usb3_start_operation_for_usb3(struct renesas_usb3 *usb3) { … } static void usb3_start_usb3_connection(struct renesas_usb3 *usb3) { … } static void usb3_stop_usb3_connection(struct renesas_usb3 *usb3) { … } static void usb3_transition_to_default_state(struct renesas_usb3 *usb3, bool is_usb3) { … } static void usb3_connect(struct renesas_usb3 *usb3) { … } static void usb3_reset_epc(struct renesas_usb3 *usb3) { … } static void usb3_disconnect(struct renesas_usb3 *usb3) { … } static void usb3_check_vbus(struct renesas_usb3 *usb3) { … } static void renesas_usb3_role_work(struct work_struct *work) { … } static void usb3_set_mode(struct renesas_usb3 *usb3, bool host) { … } static void usb3_set_mode_by_role_sw(struct renesas_usb3 *usb3, bool host) { … } static void usb3_vbus_out(struct renesas_usb3 *usb3, bool enable) { … } static void usb3_mode_config(struct renesas_usb3 *usb3, bool host, bool a_dev) { … } static bool usb3_is_a_device(struct renesas_usb3 *usb3) { … } static void usb3_check_id(struct renesas_usb3 *usb3) { … } static void renesas_usb3_init_controller(struct renesas_usb3 *usb3) { … } static void renesas_usb3_stop_controller(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1_pll_wakeup(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1_linkup_success(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1_resume(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1_suspend(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1_disable(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1_bus_reset(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1_vbus_change(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1_hot_reset(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1_warm_reset(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1_speed(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_int_1(struct renesas_usb3 *usb3, u32 int_sta_1) { … } static struct renesas_usb3_request *__usb3_get_request(struct renesas_usb3_ep *usb3_ep) { … } static struct renesas_usb3_request *usb3_get_request(struct renesas_usb3_ep *usb3_ep) { … } static void __usb3_request_done(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req, int status) { … } static void usb3_request_done(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req, int status) { … } static void usb3_irq_epc_pipe0_status_end(struct renesas_usb3 *usb3) { … } static void usb3_get_setup_data(struct renesas_usb3 *usb3, struct usb_ctrlrequest *ctrl) { … } static void usb3_set_p0_con_update_res(struct renesas_usb3 *usb3, u32 res) { … } static void usb3_set_p0_con_for_ctrl_read_data(struct renesas_usb3 *usb3) { … } static void usb3_set_p0_con_for_ctrl_read_status(struct renesas_usb3 *usb3) { … } static void usb3_set_p0_con_for_ctrl_write_data(struct renesas_usb3 *usb3) { … } static void usb3_set_p0_con_for_ctrl_write_status(struct renesas_usb3 *usb3) { … } static void usb3_set_p0_con_for_no_data(struct renesas_usb3 *usb3) { … } static void usb3_set_p0_con_stall(struct renesas_usb3 *usb3) { … } static void usb3_set_p0_con_stop(struct renesas_usb3 *usb3) { … } static int usb3_pn_change(struct renesas_usb3 *usb3, int num) { … } static void usb3_set_pn_con_update_res(struct renesas_usb3 *usb3, u32 res) { … } static void usb3_pn_start(struct renesas_usb3 *usb3) { … } static void usb3_pn_stop(struct renesas_usb3 *usb3) { … } static void usb3_pn_stall(struct renesas_usb3 *usb3) { … } static int usb3_pn_con_clear(struct renesas_usb3 *usb3) { … } static bool usb3_is_transfer_complete(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static int usb3_wait_pipe_status(struct renesas_usb3_ep *usb3_ep, u32 mask) { … } static void usb3_set_px_con_send(struct renesas_usb3_ep *usb3_ep, int bytes, bool last) { … } static int usb3_write_pipe(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req, u32 fifo_reg) { … } static u32 usb3_get_received_length(struct renesas_usb3_ep *usb3_ep) { … } static int usb3_read_pipe(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req, u32 fifo_reg) { … } static void usb3_set_status_stage(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static void usb3_p0_xfer(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static void usb3_start_pipe0(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static void usb3_enable_dma_pipen(struct renesas_usb3 *usb3) { … } static void usb3_disable_dma_pipen(struct renesas_usb3 *usb3) { … } static void usb3_enable_dma_irq(struct renesas_usb3 *usb3, int num) { … } static void usb3_disable_dma_irq(struct renesas_usb3 *usb3, int num) { … } static u32 usb3_dma_mps_to_prd_word1(struct renesas_usb3_ep *usb3_ep) { … } static bool usb3_dma_get_setting_area(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static void usb3_dma_put_setting_area(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static void usb3_dma_fill_prd(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static void usb3_dma_kick_prd(struct renesas_usb3_ep *usb3_ep) { … } static void usb3_dma_stop_prd(struct renesas_usb3_ep *usb3_ep) { … } static int usb3_dma_update_status(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static bool usb3_dma_try_start(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static int usb3_dma_try_stop(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static int renesas_usb3_dma_free_prd(struct renesas_usb3 *usb3, struct device *dev) { … } static int renesas_usb3_dma_alloc_prd(struct renesas_usb3 *usb3, struct device *dev) { … } static void usb3_start_pipen(struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req) { … } static int renesas_usb3_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) { … } static void usb3_set_device_address(struct renesas_usb3 *usb3, u16 addr) { … } static bool usb3_std_req_set_address(struct renesas_usb3 *usb3, struct usb_ctrlrequest *ctrl) { … } static void usb3_pipe0_internal_xfer(struct renesas_usb3 *usb3, void *tx_data, size_t len, void (*complete)(struct usb_ep *ep, struct usb_request *req)) { … } static void usb3_pipe0_get_status_completion(struct usb_ep *ep, struct usb_request *req) { … } static bool usb3_std_req_get_status(struct renesas_usb3 *usb3, struct usb_ctrlrequest *ctrl) { … } static bool usb3_std_req_feature_device(struct renesas_usb3 *usb3, struct usb_ctrlrequest *ctrl, bool set) { … } static int usb3_set_halt_p0(struct renesas_usb3_ep *usb3_ep, bool halt) { … } static int usb3_set_halt_pn(struct renesas_usb3_ep *usb3_ep, bool halt, bool is_clear_feature) { … } static int usb3_set_halt(struct renesas_usb3_ep *usb3_ep, bool halt, bool is_clear_feature) { … } static bool usb3_std_req_feature_endpoint(struct renesas_usb3 *usb3, struct usb_ctrlrequest *ctrl, bool set) { … } static bool usb3_std_req_feature(struct renesas_usb3 *usb3, struct usb_ctrlrequest *ctrl, bool set) { … } static void usb3_pipe0_set_sel_completion(struct usb_ep *ep, struct usb_request *req) { … } static bool usb3_std_req_set_sel(struct renesas_usb3 *usb3, struct usb_ctrlrequest *ctrl) { … } static bool usb3_std_req_set_configuration(struct renesas_usb3 *usb3, struct usb_ctrlrequest *ctrl) { … } /** * usb3_handle_standard_request - handle some standard requests * @usb3: the renesas_usb3 pointer * @ctrl: a pointer of setup data * * Returns true if this function handled a standard request */ static bool usb3_handle_standard_request(struct renesas_usb3 *usb3, struct usb_ctrlrequest *ctrl) { … } static int usb3_p0_con_clear_buffer(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_pipe0_setup(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_pipe0_bfrdy(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc_pipe0(struct renesas_usb3 *usb3) { … } static void usb3_request_done_pipen(struct renesas_usb3 *usb3, struct renesas_usb3_ep *usb3_ep, struct renesas_usb3_request *usb3_req, int status) { … } static void usb3_irq_epc_pipen_lsttr(struct renesas_usb3 *usb3, int num) { … } static void usb3_irq_epc_pipen_bfrdy(struct renesas_usb3 *usb3, int num) { … } static void usb3_irq_epc_pipen(struct renesas_usb3 *usb3, int num) { … } static void usb3_irq_epc_int_2(struct renesas_usb3 *usb3, u32 int_sta_2) { … } static void usb3_irq_idmon_change(struct renesas_usb3 *usb3) { … } static void usb3_irq_otg_int(struct renesas_usb3 *usb3) { … } static void usb3_irq_epc(struct renesas_usb3 *usb3) { … } static void usb3_irq_dma_int(struct renesas_usb3 *usb3, u32 dma_sta) { … } static void usb3_irq_dma(struct renesas_usb3 *usb3) { … } static irqreturn_t renesas_usb3_irq(int irq, void *_usb3) { … } static irqreturn_t renesas_usb3_otg_irq(int irq, void *_usb3) { … } static void usb3_write_pn_mod(struct renesas_usb3_ep *usb3_ep, const struct usb_endpoint_descriptor *desc) { … } static u32 usb3_calc_ramarea(int ram_size) { … } static u32 usb3_calc_rammap_val(struct renesas_usb3_ep *usb3_ep, const struct usb_endpoint_descriptor *desc) { … } static int usb3_enable_pipe_n(struct renesas_usb3_ep *usb3_ep, const struct usb_endpoint_descriptor *desc) { … } static int usb3_disable_pipe_n(struct renesas_usb3_ep *usb3_ep) { … } /*------- usb_ep_ops -----------------------------------------------------*/ static int renesas_usb3_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) { … } static int renesas_usb3_ep_disable(struct usb_ep *_ep) { … } static struct usb_request *__renesas_usb3_ep_alloc_request(gfp_t gfp_flags) { … } static void __renesas_usb3_ep_free_request(struct usb_request *_req) { … } static struct usb_request *renesas_usb3_ep_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) { … } static void renesas_usb3_ep_free_request(struct usb_ep *_ep, struct usb_request *_req) { … } static int renesas_usb3_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req) { … } static int renesas_usb3_ep_set_halt(struct usb_ep *_ep, int value) { … } static int renesas_usb3_ep_set_wedge(struct usb_ep *_ep) { … } static void renesas_usb3_ep_fifo_flush(struct usb_ep *_ep) { … } static const struct usb_ep_ops renesas_usb3_ep_ops = …; /*------- usb_gadget_ops -------------------------------------------------*/ static int renesas_usb3_start(struct usb_gadget *gadget, struct usb_gadget_driver *driver) { … } static int renesas_usb3_stop(struct usb_gadget *gadget) { … } static int renesas_usb3_get_frame(struct usb_gadget *_gadget) { … } static int renesas_usb3_pullup(struct usb_gadget *gadget, int is_on) { … } static int renesas_usb3_set_selfpowered(struct usb_gadget *gadget, int is_self) { … } static const struct usb_gadget_ops renesas_usb3_gadget_ops = …; static enum usb_role renesas_usb3_role_switch_get(struct usb_role_switch *sw) { … } static void handle_ext_role_switch_states(struct device *dev, enum usb_role role) { … } static void handle_role_switch_states(struct device *dev, enum usb_role role) { … } static int renesas_usb3_role_switch_set(struct usb_role_switch *sw, enum usb_role role) { … } static ssize_t role_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static ssize_t role_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static DEVICE_ATTR_RW(role); static int renesas_usb3_b_device_show(struct seq_file *s, void *unused) { … } static int renesas_usb3_b_device_open(struct inode *inode, struct file *file) { … } static ssize_t renesas_usb3_b_device_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { … } static const struct file_operations renesas_usb3_b_device_fops = …; static void renesas_usb3_debugfs_init(struct renesas_usb3 *usb3, struct device *dev) { … } /*------- platform_driver ------------------------------------------------*/ static void renesas_usb3_remove(struct platform_device *pdev) { … } static int renesas_usb3_init_ep(struct renesas_usb3 *usb3, struct device *dev, const struct renesas_usb3_priv *priv) { … } static void renesas_usb3_init_ram(struct renesas_usb3 *usb3, struct device *dev, const struct renesas_usb3_priv *priv) { … } static const struct renesas_usb3_priv renesas_usb3_priv_gen3 = …; static const struct renesas_usb3_priv renesas_usb3_priv_r8a77990 = …; static const struct renesas_usb3_priv renesas_usb3_priv_rzv2m = …; static const struct of_device_id usb3_of_match[] = …; MODULE_DEVICE_TABLE(of, usb3_of_match); static const unsigned int renesas_usb3_cable[] = …; static struct usb_role_switch_desc renesas_usb3_role_switch_desc = …; static int renesas_usb3_probe(struct platform_device *pdev) { … } #ifdef CONFIG_PM_SLEEP static int renesas_usb3_suspend(struct device *dev) { … } static int renesas_usb3_resume(struct device *dev) { … } #endif static SIMPLE_DEV_PM_OPS(renesas_usb3_pm_ops, renesas_usb3_suspend, renesas_usb3_resume); static struct platform_driver renesas_usb3_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_ALIAS(…) …;
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