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/include/linux/vlynq.h

https://github.com/airy09/android_kernel_sony_apq8064
C Header | 162 lines | 119 code | 26 blank | 17 comment | 4 complexity | bdc0ccf61b123b9ae6cad5a8d36c22ae MD5 | raw file
  1/*
  2 * Copyright (C) 2006, 2007 Eugene Konev <ejka@openwrt.org>
  3 *
  4 * This program is free software; you can redistribute it and/or modify
  5 * it under the terms of the GNU General Public License as published by
  6 * the Free Software Foundation; either version 2 of the License, or
  7 * (at your option) any later version.
  8 *
  9 * This program is distributed in the hope that it will be useful,
 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 12 * GNU General Public License for more details.
 13 *
 14 * You should have received a copy of the GNU General Public License
 15 * along with this program; if not, write to the Free Software
 16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 17 */
 18
 19#ifndef __VLYNQ_H__
 20#define __VLYNQ_H__
 21
 22#include <linux/device.h>
 23#include <linux/types.h>
 24
 25struct module;
 26
 27#define VLYNQ_NUM_IRQS 32
 28
 29struct vlynq_mapping {
 30	u32 size;
 31	u32 offset;
 32};
 33
 34enum vlynq_divisor {
 35	vlynq_div_auto = 0,
 36	vlynq_ldiv1,
 37	vlynq_ldiv2,
 38	vlynq_ldiv3,
 39	vlynq_ldiv4,
 40	vlynq_ldiv5,
 41	vlynq_ldiv6,
 42	vlynq_ldiv7,
 43	vlynq_ldiv8,
 44	vlynq_rdiv1,
 45	vlynq_rdiv2,
 46	vlynq_rdiv3,
 47	vlynq_rdiv4,
 48	vlynq_rdiv5,
 49	vlynq_rdiv6,
 50	vlynq_rdiv7,
 51	vlynq_rdiv8,
 52	vlynq_div_external
 53};
 54
 55struct vlynq_device_id {
 56	u32 id;
 57	enum vlynq_divisor divisor;
 58	unsigned long driver_data;
 59};
 60
 61struct vlynq_regs;
 62struct vlynq_device {
 63	u32 id, dev_id;
 64	int local_irq;
 65	int remote_irq;
 66	enum vlynq_divisor divisor;
 67	u32 regs_start, regs_end;
 68	u32 mem_start, mem_end;
 69	u32 irq_start, irq_end;
 70	int irq;
 71	int enabled;
 72	struct vlynq_regs *local;
 73	struct vlynq_regs *remote;
 74	struct device dev;
 75};
 76
 77struct vlynq_driver {
 78	char *name;
 79	struct vlynq_device_id *id_table;
 80	int (*probe)(struct vlynq_device *dev, struct vlynq_device_id *id);
 81	void (*remove)(struct vlynq_device *dev);
 82	struct device_driver driver;
 83};
 84
 85struct plat_vlynq_ops {
 86	int (*on)(struct vlynq_device *dev);
 87	void (*off)(struct vlynq_device *dev);
 88};
 89
 90static inline struct vlynq_driver *to_vlynq_driver(struct device_driver *drv)
 91{
 92	return container_of(drv, struct vlynq_driver, driver);
 93}
 94
 95static inline struct vlynq_device *to_vlynq_device(struct device *device)
 96{
 97	return container_of(device, struct vlynq_device, dev);
 98}
 99
100extern struct bus_type vlynq_bus_type;
101
102extern int __vlynq_register_driver(struct vlynq_driver *driver,
103				   struct module *owner);
104
105static inline int vlynq_register_driver(struct vlynq_driver *driver)
106{
107	return __vlynq_register_driver(driver, THIS_MODULE);
108}
109
110static inline void *vlynq_get_drvdata(struct vlynq_device *dev)
111{
112	return dev_get_drvdata(&dev->dev);
113}
114
115static inline void vlynq_set_drvdata(struct vlynq_device *dev, void *data)
116{
117	dev_set_drvdata(&dev->dev, data);
118}
119
120static inline u32 vlynq_mem_start(struct vlynq_device *dev)
121{
122	return dev->mem_start;
123}
124
125static inline u32 vlynq_mem_end(struct vlynq_device *dev)
126{
127	return dev->mem_end;
128}
129
130static inline u32 vlynq_mem_len(struct vlynq_device *dev)
131{
132	return dev->mem_end - dev->mem_start + 1;
133}
134
135static inline int vlynq_virq_to_irq(struct vlynq_device *dev, int virq)
136{
137	int irq = dev->irq_start + virq;
138	if ((irq < dev->irq_start) || (irq > dev->irq_end))
139		return -EINVAL;
140
141	return irq;
142}
143
144static inline int vlynq_irq_to_virq(struct vlynq_device *dev, int irq)
145{
146	if ((irq < dev->irq_start) || (irq > dev->irq_end))
147		return -EINVAL;
148
149	return irq - dev->irq_start;
150}
151
152extern void vlynq_unregister_driver(struct vlynq_driver *driver);
153extern int vlynq_enable_device(struct vlynq_device *dev);
154extern void vlynq_disable_device(struct vlynq_device *dev);
155extern int vlynq_set_local_mapping(struct vlynq_device *dev, u32 tx_offset,
156				   struct vlynq_mapping *mapping);
157extern int vlynq_set_remote_mapping(struct vlynq_device *dev, u32 tx_offset,
158				    struct vlynq_mapping *mapping);
159extern int vlynq_set_local_irq(struct vlynq_device *dev, int virq);
160extern int vlynq_set_remote_irq(struct vlynq_device *dev, int virq);
161
162#endif /* __VLYNQ_H__ */