LXR linux/include/linux/vlynq.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * Copyright (C) 2006, 2007 Eugene Konev <ejka@openwrt.org>
   4 */
   5
   6#ifndef __VLYNQ_H__
   7#define __VLYNQ_H__
   8
   9#include <linux/device.h>
  10#include <linux/types.h>
  11
  12struct module;
  13
  14#define VLYNQ_NUM_IRQS 32
  15
  16struct vlynq_mapping {
  17        u32 size;
  18        u32 offset;
  19};
  20
  21enum vlynq_divisor {
  22        vlynq_div_auto = 0,
  23        vlynq_ldiv1,
  24        vlynq_ldiv2,
  25        vlynq_ldiv3,
  26        vlynq_ldiv4,
  27        vlynq_ldiv5,
  28        vlynq_ldiv6,
  29        vlynq_ldiv7,
  30        vlynq_ldiv8,
  31        vlynq_rdiv1,
  32        vlynq_rdiv2,
  33        vlynq_rdiv3,
  34        vlynq_rdiv4,
  35        vlynq_rdiv5,
  36        vlynq_rdiv6,
  37        vlynq_rdiv7,
  38        vlynq_rdiv8,
  39        vlynq_div_external
  40};
  41
  42struct vlynq_device_id {
  43        u32 id;
  44        enum vlynq_divisor divisor;
  45        unsigned long driver_data;
  46};
  47
  48struct vlynq_regs;
  49struct vlynq_device {
  50        u32 id, dev_id;
  51        int local_irq;
  52        int remote_irq;
  53        enum vlynq_divisor divisor;
  54        u32 regs_start, regs_end;
  55        u32 mem_start, mem_end;
  56        u32 irq_start, irq_end;
  57        int irq;
  58        int enabled;
  59        struct vlynq_regs *local;
  60        struct vlynq_regs *remote;
  61        struct device dev;
  62};
  63
  64struct vlynq_driver {
  65        char *name;
  66        struct vlynq_device_id *id_table;
  67        int (*probe)(struct vlynq_device *dev, struct vlynq_device_id *id);
  68        void (*remove)(struct vlynq_device *dev);
  69        struct device_driver driver;
  70};
  71
  72struct plat_vlynq_ops {
  73        int (*on)(struct vlynq_device *dev);
  74        void (*off)(struct vlynq_device *dev);
  75};
  76
  77static inline struct vlynq_driver *to_vlynq_driver(struct device_driver *drv)
  78{
  79        return container_of(drv, struct vlynq_driver, driver);
  80}
  81
  82static inline struct vlynq_device *to_vlynq_device(struct device *device)
  83{
  84        return container_of(device, struct vlynq_device, dev);
  85}
  86
  87extern struct bus_type vlynq_bus_type;
  88
  89extern int __vlynq_register_driver(struct vlynq_driver *driver,
  90                                   struct module *owner);
  91
  92static inline int vlynq_register_driver(struct vlynq_driver *driver)
  93{
  94        return __vlynq_register_driver(driver, THIS_MODULE);
  95}
  96
  97static inline void *vlynq_get_drvdata(struct vlynq_device *dev)
  98{
  99        return dev_get_drvdata(&dev->dev);
 100}
 101
 102static inline void vlynq_set_drvdata(struct vlynq_device *dev, void *data)
 103{
 104        dev_set_drvdata(&dev->dev, data);
 105}
 106
 107static inline u32 vlynq_mem_start(struct vlynq_device *dev)
 108{
 109        return dev->mem_start;
 110}
 111
 112static inline u32 vlynq_mem_end(struct vlynq_device *dev)
 113{
 114        return dev->mem_end;
 115}
 116
 117static inline u32 vlynq_mem_len(struct vlynq_device *dev)
 118{
 119        return dev->mem_end - dev->mem_start + 1;
 120}
 121
 122static inline int vlynq_virq_to_irq(struct vlynq_device *dev, int virq)
 123{
 124        int irq = dev->irq_start + virq;
 125        if ((irq < dev->irq_start) || (irq > dev->irq_end))
 126                return -EINVAL;
 127
 128        return irq;
 129}
 130
 131static inline int vlynq_irq_to_virq(struct vlynq_device *dev, int irq)
 132{
 133        if ((irq < dev->irq_start) || (irq > dev->irq_end))
 134                return -EINVAL;
 135
 136        return irq - dev->irq_start;
 137}
 138
 139extern void vlynq_unregister_driver(struct vlynq_driver *driver);
 140extern int vlynq_enable_device(struct vlynq_device *dev);
 141extern void vlynq_disable_device(struct vlynq_device *dev);
 142extern int vlynq_set_local_mapping(struct vlynq_device *dev, u32 tx_offset,
 143                                   struct vlynq_mapping *mapping);
 144extern int vlynq_set_remote_mapping(struct vlynq_device *dev, u32 tx_offset,
 145                                    struct vlynq_mapping *mapping);
 146extern int vlynq_set_local_irq(struct vlynq_device *dev, int virq);
 147extern int vlynq_set_remote_irq(struct vlynq_device *dev, int virq);
 148
 149#endif /* __VLYNQ_H__ */
 150