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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/module.h> |
24 | #include <linux/types.h> |
25 | |
26 | #define VLYNQ_NUM_IRQS 32 |
27 | |
28 | struct vlynq_mapping { |
29 | u32 size; |
30 | u32 offset; |
31 | }; |
32 | |
33 | enum vlynq_divisor { |
34 | vlynq_div_auto = 0, |
35 | vlynq_ldiv1, |
36 | vlynq_ldiv2, |
37 | vlynq_ldiv3, |
38 | vlynq_ldiv4, |
39 | vlynq_ldiv5, |
40 | vlynq_ldiv6, |
41 | vlynq_ldiv7, |
42 | vlynq_ldiv8, |
43 | vlynq_rdiv1, |
44 | vlynq_rdiv2, |
45 | vlynq_rdiv3, |
46 | vlynq_rdiv4, |
47 | vlynq_rdiv5, |
48 | vlynq_rdiv6, |
49 | vlynq_rdiv7, |
50 | vlynq_rdiv8, |
51 | vlynq_div_external |
52 | }; |
53 | |
54 | struct vlynq_device_id { |
55 | u32 id; |
56 | enum vlynq_divisor divisor; |
57 | unsigned long driver_data; |
58 | }; |
59 | |
60 | struct vlynq_regs; |
61 | struct vlynq_device { |
62 | u32 id, dev_id; |
63 | int local_irq; |
64 | int remote_irq; |
65 | enum vlynq_divisor divisor; |
66 | u32 regs_start, regs_end; |
67 | u32 mem_start, mem_end; |
68 | u32 irq_start, irq_end; |
69 | int irq; |
70 | int enabled; |
71 | struct vlynq_regs *local; |
72 | struct vlynq_regs *remote; |
73 | struct device dev; |
74 | }; |
75 | |
76 | struct vlynq_driver { |
77 | char *name; |
78 | struct vlynq_device_id *id_table; |
79 | int (*probe)(struct vlynq_device *dev, struct vlynq_device_id *id); |
80 | void (*remove)(struct vlynq_device *dev); |
81 | struct device_driver driver; |
82 | }; |
83 | |
84 | struct plat_vlynq_ops { |
85 | int (*on)(struct vlynq_device *dev); |
86 | void (*off)(struct vlynq_device *dev); |
87 | }; |
88 | |
89 | static inline struct vlynq_driver *to_vlynq_driver(struct device_driver *drv) |
90 | { |
91 | return container_of(drv, struct vlynq_driver, driver); |
92 | } |
93 | |
94 | static inline struct vlynq_device *to_vlynq_device(struct device *device) |
95 | { |
96 | return container_of(device, struct vlynq_device, dev); |
97 | } |
98 | |
99 | extern struct bus_type vlynq_bus_type; |
100 | |
101 | extern int __vlynq_register_driver(struct vlynq_driver *driver, |
102 | struct module *owner); |
103 | |
104 | static inline int vlynq_register_driver(struct vlynq_driver *driver) |
105 | { |
106 | return __vlynq_register_driver(driver, THIS_MODULE); |
107 | } |
108 | |
109 | static inline void *vlynq_get_drvdata(struct vlynq_device *dev) |
110 | { |
111 | return dev_get_drvdata(&dev->dev); |
112 | } |
113 | |
114 | static inline void vlynq_set_drvdata(struct vlynq_device *dev, void *data) |
115 | { |
116 | dev_set_drvdata(&dev->dev, data); |
117 | } |
118 | |
119 | static inline u32 vlynq_mem_start(struct vlynq_device *dev) |
120 | { |
121 | return dev->mem_start; |
122 | } |
123 | |
124 | static inline u32 vlynq_mem_end(struct vlynq_device *dev) |
125 | { |
126 | return dev->mem_end; |
127 | } |
128 | |
129 | static inline u32 vlynq_mem_len(struct vlynq_device *dev) |
130 | { |
131 | return dev->mem_end - dev->mem_start + 1; |
132 | } |
133 | |
134 | static inline int vlynq_virq_to_irq(struct vlynq_device *dev, int virq) |
135 | { |
136 | int irq = dev->irq_start + virq; |
137 | if ((irq < dev->irq_start) || (irq > dev->irq_end)) |
138 | return -EINVAL; |
139 | |
140 | return irq; |
141 | } |
142 | |
143 | static inline int vlynq_irq_to_virq(struct vlynq_device *dev, int irq) |
144 | { |
145 | if ((irq < dev->irq_start) || (irq > dev->irq_end)) |
146 | return -EINVAL; |
147 | |
148 | return irq - dev->irq_start; |
149 | } |
150 | |
151 | extern void vlynq_unregister_driver(struct vlynq_driver *driver); |
152 | extern int vlynq_enable_device(struct vlynq_device *dev); |
153 | extern void vlynq_disable_device(struct vlynq_device *dev); |
154 | extern int vlynq_set_local_mapping(struct vlynq_device *dev, u32 tx_offset, |
155 | struct vlynq_mapping *mapping); |
156 | extern int vlynq_set_remote_mapping(struct vlynq_device *dev, u32 tx_offset, |
157 | struct vlynq_mapping *mapping); |
158 | extern int vlynq_set_local_irq(struct vlynq_device *dev, int virq); |
159 | extern int vlynq_set_remote_irq(struct vlynq_device *dev, int virq); |
160 | |
161 | #endif /* __VLYNQ_H__ */ |
162 |
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