drivers/usb/isp1760/isp1760-core.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Driver for the NXP ISP1760 chip
   4  *
   5  * Copyright 2014 Laurent Pinchart
   6  * Copyright 2007 Sebastian Siewior
   7  *
   8  * Contacts:
   9  *      Sebastian Siewior <bigeasy@linutronix.de>
  10  *      Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  11  */
  12
  13 #ifndef _ISP1760_CORE_H_
  14 #define _ISP1760_CORE_H_
  15
  16 #include <linux/ioport.h>
  17
  18 #include "isp1760-hcd.h"
  19 #include "isp1760-udc.h"
  20
  21 struct device;
  22 struct gpio_desc;
  23
  24 /*
  25  * Device flags that can vary from board to board.  All of these
  26  * indicate the most "atypical" case, so that a devflags of 0 is
  27  * a sane default configuration.
  28  */
  29 #define ISP1760_FLAG_BUS_WIDTH_16       0x00000002 /* 16-bit data bus width */
  30 #define ISP1760_FLAG_OTG_EN             0x00000004 /* Port 1 supports OTG */
  31 #define ISP1760_FLAG_ANALOG_OC          0x00000008 /* Analog overcurrent */
  32 #define ISP1760_FLAG_DACK_POL_HIGH      0x00000010 /* DACK active high */
  33 #define ISP1760_FLAG_DREQ_POL_HIGH      0x00000020 /* DREQ active high */
  34 #define ISP1760_FLAG_ISP1761            0x00000040 /* Chip is ISP1761 */
  35 #define ISP1760_FLAG_INTR_POL_HIGH      0x00000080 /* Interrupt polarity active high */
  36 #define ISP1760_FLAG_INTR_EDGE_TRIG     0x00000100 /* Interrupt edge triggered */
  37
  38 struct isp1760_device {
  39         struct device *dev;
  40
  41         void __iomem *regs;
  42         unsigned int devflags;
  43         struct gpio_desc *rst_gpio;
  44
  45         struct isp1760_hcd hcd;
  46         struct isp1760_udc udc;
  47 };
  48
  49 int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
  50                      struct device *dev, unsigned int devflags);
  51 void isp1760_unregister(struct device *dev);
  52
  53 void isp1760_set_pullup(struct isp1760_device *isp, bool enable);
  54
  55 static inline u32 isp1760_read32(void __iomem *base, u32 reg)
  56 {
  57         return readl(base + reg);
  58 }
  59
  60 static inline void isp1760_write32(void __iomem *base, u32 reg, u32 val)
  61 {
  62         writel(val, base + reg);
  63 }
  64
  65 #endif