udc/cdns2/cdns2-gadget.h

1 /* SPDX-License-Identifier: GPL-2.0 */
3  * USBHS-DEV device controller driver header file
14 #include <linux/dma-direction.h>
22  * struct cdns2_ep0_regs - endpoint 0 related registers.
45 /* EP0CS - bitmasks. */
59 /* EP0FIFO - bitmasks. */
70  * struct cdns2_epx_base - base endpoint registers.
87 /* rxcon/txcon - endpoint control register bitmasks. */
88 /* Endpoint buffering: 0 - single buffering ... 3 - quad buffering. */
106 /* rxcs/txcs - endpoint control and status bitmasks. */
111  * struct cdns2_epx_regs - endpoint 1..15 related registers.
117  * @isoautoarm: ISO auto-arm register.
152 /* ENDPRST - bitmasks. */
165  * struct cdns2_interrupt_regs - USB interrupt related registers.
188 /* EXTIRQ and EXTIEN - bitmasks. */
196 /* USBIEN and USBIRQ - bitmasks. */
199 /* Start-of-frame interrupt bit. */
207 /* USB high-speed mode interrupt bit. */
215  * struct cdns2_usb_regs - USB controller registers.
248 /* LPMCTRL - bitmasks. */
256 /* LPMCLOCK - bitmasks. */
264 /* USBCS - bitmasks. */
267 /* Remote wake-up bit. */
274 /* FIFOCTRL - bitmasks. */
286 /* SPEEDCTRL - bitmasks. */
294 /* CPUCTRL- bitmasks. */
308  * struct cdns2_adma_regs - ADMA controller registers.
309  * @conf: DMA global configuration register.
310  * @sts: DMA global Status register.
312  * @ep_sel: DMA endpoint select register.
313  * @ep_traddr: DMA endpoint transfer ring address register.
314  * @ep_cfg: DMA endpoint configuration register.
315  * @ep_cmd: DMA endpoint command register.
316  * @ep_sts: DMA endpoint status register.
318  * @ep_sts_en: DMA endpoint status enable register.
319  * @drbl: DMA doorbell register.
320  * @ep_ien: DMA endpoint interrupt enable register.
321  * @ep_ists: DMA endpoint interrupt status register.
355 /* DMA_CONF - bitmasks. */
358 /* Singular DMA transfer mode.*/
360 /* Multiple DMA transfers mode.*/
363 /* DMA_EP_CFG - bitmasks. */
367 /* DMA_EP_CMD - bitmasks. */
375 /* DMA_EP_STS - bitmasks. */
384 /* DMA busy bit. */
393 /* DMA_EP_STS_EN - bitmasks. */
403 /* DMA_EP_IEN - bitmasks. */
408 /* DMA_EP_ISTS - bitmasks. */
416 /*-------------------------------------------------------------------------*/
428 #define TRB_BUFF_LEN_UP_TO_BOUNDARY(addr) (TRB_MAX_ISO_BUFF_SIZE - \
429 					((addr) & (TRB_MAX_ISO_BUFF_SIZE - 1)))
436  * struct cdns2_trb - represent Transfer Descriptor block.
441  * This structure describes transfer block handled by DMA module.
468 /* Cycle bit - indicates TRB ownership by driver or hw. */
489 /*-------------------------------------------------------------------------*/
500 /*-------------------------------------------------------------------------*/
506  * struct cdns2_ring - transfer ring representation.
508  * @dma: dma address of transfer ring.
517 	dma_addr_t dma;  member
526  * struct cdns2_endpoint - extended device side representation of USB endpoint.
534  * @idx: index of endpoint in pdev->eps table.
536  * @num: endpoint number (1 - 15).
539  * @buffering: on-chip buffers assigned to endpoint.
587  * struct cdns2_request - extended device side representation of usb_request
617  * struct cdns2_device - represent USB device.
625  * @ep0_regs: base address for endpoint 0 related registers.
627  * @interrupt_regs: base address for interrupt handling related registers.
646  *      bit: 0 - ep0, 1 - epOut1, 2 - epIn1, 3 - epOut2 ...
648  * @onchip_tx_buf: size of transmit on-chip buffer in KB.
649  * @onchip_rx_buf: size of receive on-chip buffer in KB.
656 	/* generic spin-lock for drivers */
688 			 ((pdev)->eps_supported & \