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
25 struct module;
26
27 #define VLYNQ_NUM_IRQS 32
28
29 struct vlynq_mapping {
30 u32 size;
31 u32 offset;
32 };
33
34 enum 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
55 struct vlynq_device_id {
56 u32 id;
57 enum vlynq_divisor divisor;
58 unsigned long driver_data;
59 };
60
61 struct vlynq_regs;
62 struct 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
77 struct 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
85 struct plat_vlynq_ops {
86 int (*on)(struct vlynq_device *dev);
87 void (*off)(struct vlynq_device *dev);
88 };
89
to_vlynq_driver(struct device_driver * drv)90 static inline struct vlynq_driver *to_vlynq_driver(struct device_driver *drv)
91 {
92 return container_of(drv, struct vlynq_driver, driver);
93 }
94
to_vlynq_device(struct device * device)95 static inline struct vlynq_device *to_vlynq_device(struct device *device)
96 {
97 return container_of(device, struct vlynq_device, dev);
98 }
99
100 extern struct bus_type vlynq_bus_type;
101
102 extern int __vlynq_register_driver(struct vlynq_driver *driver,
103 struct module *owner);
104
vlynq_register_driver(struct vlynq_driver * driver)105 static inline int vlynq_register_driver(struct vlynq_driver *driver)
106 {
107 return __vlynq_register_driver(driver, THIS_MODULE);
108 }
109
vlynq_get_drvdata(struct vlynq_device * dev)110 static inline void *vlynq_get_drvdata(struct vlynq_device *dev)
111 {
112 return dev_get_drvdata(&dev->dev);
113 }
114
vlynq_set_drvdata(struct vlynq_device * dev,void * data)115 static inline void vlynq_set_drvdata(struct vlynq_device *dev, void *data)
116 {
117 dev_set_drvdata(&dev->dev, data);
118 }
119
vlynq_mem_start(struct vlynq_device * dev)120 static inline u32 vlynq_mem_start(struct vlynq_device *dev)
121 {
122 return dev->mem_start;
123 }
124
vlynq_mem_end(struct vlynq_device * dev)125 static inline u32 vlynq_mem_end(struct vlynq_device *dev)
126 {
127 return dev->mem_end;
128 }
129
vlynq_mem_len(struct vlynq_device * dev)130 static inline u32 vlynq_mem_len(struct vlynq_device *dev)
131 {
132 return dev->mem_end - dev->mem_start + 1;
133 }
134
vlynq_virq_to_irq(struct vlynq_device * dev,int virq)135 static 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
vlynq_irq_to_virq(struct vlynq_device * dev,int irq)144 static 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
152 extern void vlynq_unregister_driver(struct vlynq_driver *driver);
153 extern int vlynq_enable_device(struct vlynq_device *dev);
154 extern void vlynq_disable_device(struct vlynq_device *dev);
155 extern int vlynq_set_local_mapping(struct vlynq_device *dev, u32 tx_offset,
156 struct vlynq_mapping *mapping);
157 extern int vlynq_set_remote_mapping(struct vlynq_device *dev, u32 tx_offset,
158 struct vlynq_mapping *mapping);
159 extern int vlynq_set_local_irq(struct vlynq_device *dev, int virq);
160 extern int vlynq_set_remote_irq(struct vlynq_device *dev, int virq);
161
162 #endif /* __VLYNQ_H__ */
163