LXR linux/drivers/usb/isp1760/isp1760-core.h

   1/*
   2 * Driver for the NXP ISP1760 chip
   3 *
   4 * Copyright 2014 Laurent Pinchart
   5 * Copyright 2007 Sebastian Siewior
   6 *
   7 * Contacts:
   8 *      Sebastian Siewior <bigeasy@linutronix.de>
   9 *      Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  10 *
  11 * This program is free software; you can redistribute it and/or
  12 * modify it under the terms of the GNU General Public License
  13 * version 2 as published by the Free Software Foundation.
  14 */
  15
  16#ifndef _ISP1760_CORE_H_
  17#define _ISP1760_CORE_H_
  18
  19#include <linux/ioport.h>
  20
  21#include "isp1760-hcd.h"
  22#include "isp1760-udc.h"
  23
  24struct device;
  25struct gpio_desc;
  26
  27/*
  28 * Device flags that can vary from board to board.  All of these
  29 * indicate the most "atypical" case, so that a devflags of 0 is
  30 * a sane default configuration.
  31 */
  32#define ISP1760_FLAG_BUS_WIDTH_16       0x00000002 /* 16-bit data bus width */
  33#define ISP1760_FLAG_OTG_EN             0x00000004 /* Port 1 supports OTG */
  34#define ISP1760_FLAG_ANALOG_OC          0x00000008 /* Analog overcurrent */
  35#define ISP1760_FLAG_DACK_POL_HIGH      0x00000010 /* DACK active high */
  36#define ISP1760_FLAG_DREQ_POL_HIGH      0x00000020 /* DREQ active high */
  37#define ISP1760_FLAG_ISP1761            0x00000040 /* Chip is ISP1761 */
  38#define ISP1760_FLAG_INTR_POL_HIGH      0x00000080 /* Interrupt polarity active high */
  39#define ISP1760_FLAG_INTR_EDGE_TRIG     0x00000100 /* Interrupt edge triggered */
  40
  41struct isp1760_device {
  42        struct device *dev;
  43
  44        void __iomem *regs;
  45        unsigned int devflags;
  46        struct gpio_desc *rst_gpio;
  47
  48        struct isp1760_hcd hcd;
  49        struct isp1760_udc udc;
  50};
  51
  52int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
  53                     struct device *dev, unsigned int devflags);
  54void isp1760_unregister(struct device *dev);
  55
  56void isp1760_set_pullup(struct isp1760_device *isp, bool enable);
  57
  58static inline u32 isp1760_read32(void __iomem *base, u32 reg)
  59{
  60        return readl(base + reg);
  61}
  62
  63static inline void isp1760_write32(void __iomem *base, u32 reg, u32 val)
  64{
  65        writel(val, base + reg);
  66}
  67
  68#endif
  69