// SPDX-License-Identifier: GPL-2.0 /* * Driver for the Atmel USBA high speed USB device controller * * Copyright (C) 2005-2007 Atmel Corporation #ifndef __LINUX_USB_GADGET_USBA_UDC_H__#define __LINUX_USB_GADGET_USBA_UDC_H__#include <linux/gpio/consumer.h>/* USB register offsets */ #define USBA_CTRL 0x0000#define USBA_FNUM 0x0004#define USBA_INT_ENB 0x0010#define USBA_INT_STA 0x0014#define USBA_INT_CLR 0x0018#define USBA_EPT_RST 0x001c#define USBA_TST 0x00e0/* USB endpoint register offsets */ #define USBA_EPT_CFG 0x0000#define USBA_EPT_CTL_ENB 0x0004#define USBA_EPT_CTL_DIS 0x0008#define USBA_EPT_CTL 0x000c#define USBA_EPT_SET_STA 0x0014#define USBA_EPT_CLR_STA 0x0018#define USBA_EPT_STA 0x001c/* USB DMA register offsets */ #define USBA_DMA_NXT_DSC 0x0000#define USBA_DMA_ADDRESS 0x0004#define USBA_DMA_CONTROL 0x0008#define USBA_DMA_STATUS 0x000c/* Bitfields in CTRL */ #define USBA_DEV_ADDR_OFFSET 0#define USBA_DEV_ADDR_SIZE 7#define USBA_FADDR_EN (1 << 7)#define USBA_EN_USBA (1 << 8)#define USBA_DETACH (1 << 9)#define USBA_REMOTE_WAKE_UP (1 << 10)#define USBA_PULLD_DIS (1 << 11)#define USBA_ENABLE_MASK (USBA_EN_USBA | USBA_PULLD_DIS)#define USBA_DISABLE_MASK USBA_DETACH/* Bitfields in FNUM */ #define USBA_MICRO_FRAME_NUM_OFFSET 0#define USBA_MICRO_FRAME_NUM_SIZE 3#define USBA_FRAME_NUMBER_OFFSET 3#define USBA_FRAME_NUMBER_SIZE 11#define USBA_FRAME_NUM_ERROR (1 << 31)/* Bitfields in INT_ENB/INT_STA/INT_CLR */ #define USBA_HIGH_SPEED (1 << 0)#define USBA_DET_SUSPEND (1 << 1)#define USBA_MICRO_SOF (1 << 2)#define USBA_SOF (1 << 3)#define USBA_END_OF_RESET (1 << 4)#define USBA_WAKE_UP (1 << 5)#define USBA_END_OF_RESUME (1 << 6)#define USBA_UPSTREAM_RESUME (1 << 7)#define USBA_EPT_INT_OFFSET 8#define USBA_EPT_INT_SIZE 16#define USBA_DMA_INT_OFFSET 24#define USBA_DMA_INT_SIZE 8/* Bitfields in EPT_RST */ #define USBA_RST_OFFSET 0#define USBA_RST_SIZE 16/* Bitfields in USBA_TST */ #define USBA_SPEED_CFG_OFFSET 0#define USBA_SPEED_CFG_SIZE 2#define USBA_TST_J_MODE (1 << 2)#define USBA_TST_K_MODE (1 << 3)#define USBA_TST_PKT_MODE (1 << 4)#define USBA_OPMODE2 (1 << 5)/* Bitfields in EPT_CFG */ #define USBA_EPT_SIZE_OFFSET 0#define USBA_EPT_SIZE_SIZE 3#define USBA_EPT_DIR_IN (1 << 3)#define USBA_EPT_TYPE_OFFSET 4#define USBA_EPT_TYPE_SIZE 2#define USBA_BK_NUMBER_OFFSET 6#define USBA_BK_NUMBER_SIZE 2#define USBA_NB_TRANS_OFFSET 8#define USBA_NB_TRANS_SIZE 2#define USBA_EPT_MAPPED (1 << 31)/* Bitfields in EPT_CTL/EPT_CTL_ENB/EPT_CTL_DIS */ #define USBA_EPT_ENABLE (1 << 0)#define USBA_AUTO_VALID (1 << 1)#define USBA_INTDIS_DMA (1 << 3)#define USBA_NYET_DIS (1 << 4)#define USBA_DATAX_RX (1 << 6)#define USBA_MDATA_RX (1 << 7)/* Bits 8-15 and 31 enable interrupts for respective bits in EPT_STA */ #define USBA_BUSY_BANK_IE (1 << 18)/* Bitfields in EPT_SET_STA/EPT_CLR_STA/EPT_STA */ #define USBA_FORCE_STALL (1 << 5)#define USBA_TOGGLE_CLR (1 << 6)#define USBA_TOGGLE_SEQ_OFFSET 6#define USBA_TOGGLE_SEQ_SIZE 2#define USBA_ERR_OVFLW (1 << 8)#define USBA_RX_BK_RDY (1 << 9)#define USBA_KILL_BANK (1 << 9)#define USBA_TX_COMPLETE (1 << 10)#define USBA_TX_PK_RDY (1 << 11)#define USBA_ISO_ERR_TRANS (1 << 11)#define USBA_RX_SETUP (1 << 12)#define USBA_ISO_ERR_FLOW (1 << 12)#define USBA_STALL_SENT (1 << 13)#define USBA_ISO_ERR_CRC (1 << 13)#define USBA_ISO_ERR_NBTRANS (1 << 13)#define USBA_NAK_IN (1 << 14)#define USBA_ISO_ERR_FLUSH (1 << 14)#define USBA_NAK_OUT (1 << 15)#define USBA_CURRENT_BANK_OFFSET 16#define USBA_CURRENT_BANK_SIZE 2#define USBA_BUSY_BANKS_OFFSET 18#define USBA_BUSY_BANKS_SIZE 2#define USBA_BYTE_COUNT_OFFSET 20#define USBA_BYTE_COUNT_SIZE 11#define USBA_SHORT_PACKET (1 << 31)/* Bitfields in DMA_CONTROL */ #define USBA_DMA_CH_EN (1 << 0)#define USBA_DMA_LINK (1 << 1)#define USBA_DMA_END_TR_EN (1 << 2)#define USBA_DMA_END_BUF_EN (1 << 3)#define USBA_DMA_END_TR_IE (1 << 4)#define USBA_DMA_END_BUF_IE (1 << 5)#define USBA_DMA_DESC_LOAD_IE (1 << 6)#define USBA_DMA_BURST_LOCK (1 << 7)#define USBA_DMA_BUF_LEN_OFFSET 16#define USBA_DMA_BUF_LEN_SIZE 16/* Bitfields in DMA_STATUS */ #define USBA_DMA_CH_ACTIVE (1 << 1)#define USBA_DMA_END_TR_ST (1 << 4)#define USBA_DMA_END_BUF_ST (1 << 5)#define USBA_DMA_DESC_LOAD_ST (1 << 6)/* Constants for SPEED_CFG */ #define USBA_SPEED_CFG_NORMAL 0#define USBA_SPEED_CFG_FORCE_HIGH 2#define USBA_SPEED_CFG_FORCE_FULL 3/* Constants for EPT_SIZE */ #define USBA_EPT_SIZE_8 0#define USBA_EPT_SIZE_16 1#define USBA_EPT_SIZE_32 2#define USBA_EPT_SIZE_64 3#define USBA_EPT_SIZE_128 4#define USBA_EPT_SIZE_256 5#define USBA_EPT_SIZE_512 6#define USBA_EPT_SIZE_1024 7/* Constants for EPT_TYPE */ #define USBA_EPT_TYPE_CONTROL 0#define USBA_EPT_TYPE_ISO 1#define USBA_EPT_TYPE_BULK 2#define USBA_EPT_TYPE_INT 3/* Constants for BK_NUMBER */ #define USBA_BK_NUMBER_ZERO 0#define USBA_BK_NUMBER_ONE 1#define USBA_BK_NUMBER_DOUBLE 2#define USBA_BK_NUMBER_TRIPLE 3/* Bit manipulation macros */ #define USBA_BF(name, value) \## name## _SIZE) - 1)) \## name## _OFFSET)#define USBA_BFEXT(name, value) \## name## _OFFSET) \## name## _SIZE) - 1))#define USBA_BFINS(name, value, old) \## name## _SIZE) - 1) \## name## _OFFSET)) \/* Register access macros */ #define usba_readl(udc, reg) \## reg)#define usba_writel(udc, reg, value) \## reg)#define usba_ep_readl(ep, reg) \## reg)#define usba_ep_writel(ep, reg, value) \## reg)#define usba_dma_readl(ep, reg) \## reg)#define usba_dma_writel(ep, reg, value) \## reg)/* Calculate base address for a given endpoint or DMA controller */ #define USBA_EPT_BASE(x) (0x100 + (x) * 0x20)#define USBA_DMA_BASE(x) (0x300 + (x) * 0x10)#define USBA_FIFO_BASE(x) ((x) << 16)/* Synth parameters */ #define USBA_NR_DMAS 7#define EP0_FIFO_SIZE 64#define EP0_EPT_SIZE USBA_EPT_SIZE_64#define EP0_NR_BANKS 1#define FIFO_IOMEM_ID 0#define CTRL_IOMEM_ID 1#define DBG_ERR 0x0001 /* report all error returns */ #define DBG_HW 0x0002 /* debug hardware initialization */ #define DBG_GADGET 0x0004 /* calls to/from gadget driver */ #define DBG_INT 0x0008 /* interrupts */ #define DBG_BUS 0x0010 /* report changes in bus state */ #define DBG_QUEUE 0x0020 /* debug request queue processing */ #define DBG_FIFO 0x0040 /* debug FIFO contents */ #define DBG_DMA 0x0080 /* debug DMA handling */ #define DBG_REQ 0x0100 /* print out queued request length */ #define DBG_ALL 0xffff#define DBG_NONE 0x0000#define DEBUG_LEVEL (DBG_ERR)#define DBG(level, fmt, ...) \do { \if ((level) & DEBUG_LEVEL) \"udc: " fmt, ## __VA_ARGS__); \while (0)enum usba_ctrl_state {/* EP_STATE_IDLE, EP_STATE_SETUP, EP_STATE_IN_DATA, EP_STATE_OUT_DATA, EP_STATE_SET_ADDR_STATUS, EP_STATE_RX_STATUS, EP_STATE_TX_STATUS, EP_STATE_HALT, struct usba_dma_desc {struct usba_fifo_cfg {struct usba_ep {int state;void __iomem *ep_regs;void __iomem *dma_regs;void __iomem *fifo;char name[8];struct usb_ep ep;struct usba_udc *udc;struct list_head queue;unsigned int can_dma:1;unsigned int can_isoc:1;unsigned int is_isoc:1;unsigned int is_in:1;unsigned long ept_cfg;#ifdef CONFIG_USB_GADGET_DEBUG_FSstruct dentry *debugfs_dir;#endif struct usba_ep_config {unsigned int can_dma:1;unsigned int can_isoc:1;struct usba_request {struct usb_request req;struct list_head queue;unsigned int submitted:1;unsigned int last_transaction:1;unsigned int using_dma:1;unsigned int mapped:1;struct usba_udc_errata {void (*toggle_bias)(struct usba_udc *udc, int is_on);void (*pulse_bias)(struct usba_udc *udc);struct usba_udc_config {const struct usba_udc_errata *errata;const struct usba_ep_config *config;const int num_ep;const bool ep_prealloc;struct usba_udc {/* Protect hw registers from concurrent modifications */ /* Mutex to prevent concurrent start or stop */ struct mutex vbus_mutex;void __iomem *regs;void __iomem *fifo;struct usb_gadget gadget;struct usb_gadget_driver *driver;struct platform_device *pdev;const struct usba_udc_errata *errata;int irq;struct gpio_desc *vbus_pin;int num_ep;struct usba_fifo_cfg *fifo_cfg;struct clk *pclk;struct clk *hclk;struct usba_ep *usba_ep;bool bias_pulse_needed;bool clocked;bool suspended;bool ep_prealloc;int vbus_prev;#ifdef CONFIG_USB_GADGET_DEBUG_FSstruct dentry *debugfs_root;#endif struct regmap *pmc;static inline struct usba_ep *to_usba_ep(struct usb_ep *ep)return container_of(ep, struct usba_ep, ep);static inline struct usba_request *to_usba_req(struct usb_request *req)return container_of(req, struct usba_request, req);static inline struct usba_udc *to_usba_udc(struct usb_gadget *gadget)return container_of(gadget, struct usba_udc, gadget);#define ep_is_control(ep) ((ep)->index == 0)#define ep_is_idle(ep) ((ep)->state == EP_STATE_IDLE)#endif /* __LINUX_USB_GADGET_USBA_UDC_H */
Messung V0.5 C=91 H=96 G=93
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