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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__ */ |