| 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__ */ |