mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
150 lines
3.1 KiB
C
150 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Intel PXA25x on-chip full speed USB device controller
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*
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* Copyright (C) 2003 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
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* Copyright (C) 2003 David Brownell
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* Copyright (C) 2012 Lukasz Dalek <luk0104@gmail.com>
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*/
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#ifndef __LINUX_USB_GADGET_PXA25X_H
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#define __LINUX_USB_GADGET_PXA25X_H
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#include <linux/types.h>
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#include <asm/arch/regs-usb.h>
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/*
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* Prefetching support - only ARMv5.
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*/
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#ifdef ARCH_HAS_PREFETCH
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static inline void prefetch(const void *ptr)
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{
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__asm__ __volatile__(
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"pld\t%a0"
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:
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: "p" (ptr)
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: "cc");
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}
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#define prefetchw(ptr) prefetch(ptr)
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#endif /* ARCH_HAS_PREFETCH */
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/*-------------------------------------------------------------------------*/
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#define UDC_REGS ((struct pxa25x_udc_regs *)PXA25X_UDC_BASE)
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/*-------------------------------------------------------------------------*/
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struct pxa2xx_udc_mach_info {
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int (*udc_is_connected)(void); /* do we see host? */
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void (*udc_command)(int cmd);
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#define PXA2XX_UDC_CMD_CONNECT 0 /* let host see us */
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#define PXA2XX_UDC_CMD_DISCONNECT 1 /* so host won't see us */
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};
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struct pxa25x_udc;
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struct pxa25x_ep {
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struct usb_ep ep;
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struct pxa25x_udc *dev;
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const struct usb_endpoint_descriptor *desc;
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struct list_head queue;
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unsigned long pio_irqs;
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unsigned short fifo_size;
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u8 bEndpointAddress;
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u8 bmAttributes;
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unsigned stopped:1;
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/* UDCCS = UDC Control/Status for this EP
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* UBCR = UDC Byte Count Remaining (contents of OUT fifo)
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* UDDR = UDC Endpoint Data Register (the fifo)
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* DRCM = DMA Request Channel Map
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*/
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u32 *reg_udccs;
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u32 *reg_ubcr;
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u32 *reg_uddr;
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};
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struct pxa25x_request {
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struct usb_request req;
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struct list_head queue;
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};
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enum ep0_state {
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EP0_IDLE,
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EP0_IN_DATA_PHASE,
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EP0_OUT_DATA_PHASE,
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EP0_END_XFER,
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EP0_STALL,
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};
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#define EP0_FIFO_SIZE 16U
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#define BULK_FIFO_SIZE 64U
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#define ISO_FIFO_SIZE 256U
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#define INT_FIFO_SIZE 8U
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struct udc_stats {
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struct ep0stats {
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unsigned long ops;
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unsigned long bytes;
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} read, write;
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unsigned long irqs;
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};
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#ifdef CONFIG_USB_PXA25X_SMALL
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/* when memory's tight, SMALL config saves code+data. */
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#define PXA_UDC_NUM_ENDPOINTS 3
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#endif
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#ifndef PXA_UDC_NUM_ENDPOINTS
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#define PXA_UDC_NUM_ENDPOINTS 16
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#endif
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struct pxa25x_watchdog {
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unsigned running:1;
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ulong period;
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ulong base;
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struct pxa25x_udc *udc;
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void (*function)(struct pxa25x_udc *udc);
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};
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struct pxa25x_udc {
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struct usb_gadget gadget;
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struct usb_gadget_driver *driver;
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struct pxa25x_udc_regs *regs;
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enum ep0_state ep0state;
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struct udc_stats stats;
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unsigned got_irq:1,
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pullup:1,
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has_cfr:1,
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req_pending:1,
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req_std:1,
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req_config:1,
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active:1;
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struct clk *clk;
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struct pxa2xx_udc_mach_info *mach;
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u64 dma_mask;
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struct pxa25x_ep ep[PXA_UDC_NUM_ENDPOINTS];
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struct pxa25x_watchdog watchdog;
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};
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/*-------------------------------------------------------------------------*/
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static struct pxa25x_udc *the_controller;
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/*-------------------------------------------------------------------------*/
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#ifndef DEBUG
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# define NOISY 0
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#endif
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#endif /* __LINUX_USB_GADGET_PXA25X_H */
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