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
  24 struct device;
  25 struct 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
  41 struct 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
  52 int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
  53                      struct device *dev, unsigned int devflags);
  54 void isp1760_unregister(struct device *dev);
  55
  56 void isp1760_set_pullup(struct isp1760_device *isp, bool enable);
  57
  58 static inline u32 isp1760_read32(void __iomem *base, u32 reg)
  59 {
  60         return readl(base + reg);
  61 }
  62
  63 static inline void isp1760_write32(void __iomem *base, u32 reg, u32 val)
  64 {
  65         writel(val, base + reg);
  66 }
  67
  68 #endif