projects / deliverable / linux.git / blame
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|---|---|---|
| 3764e82e JT |
1 | /* |
| 2 | * MEN Chameleon Bus. | |
| 3 | * | |
| 4 | * Copyright (C) 2014 MEN Mikroelektronik GmbH (www.men.de) | |
| 5 | * Author: Johannes Thumshirn <johannes.thumshirn@men.de> | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify it | |
| 8 | * under the terms of the GNU General Public License as published by the Free | |
| 9 | * Software Foundation; version 2 of the License. | |
| 10 | */ | |
| 11 | #ifndef _LINUX_MCB_H | |
| 12 | #define _LINUX_MCB_H | |
| 13 | ||
| 14 | #include <linux/mod_devicetable.h> | |
| 15 | #include <linux/device.h> | |
| 16 | #include <linux/irqreturn.h> | |
| 17 | ||
| 18 | struct mcb_driver; | |
| 4ec65b77 | 19 | struct mcb_device; |
| 3764e82e JT |
20 | |
| 21 | /** | |
| 22 | * struct mcb_bus - MEN Chameleon Bus | |
| 23 | * | |
| 18d28819 JT |
24 | * @dev: bus device |
| 25 | * @carrier: pointer to carrier device | |
| 3764e82e | 26 | * @bus_nr: mcb bus number |
| 4ec65b77 | 27 | * @get_irq: callback to get IRQ number |
| 3764e82e JT |
28 | */ |
| 29 | struct mcb_bus { | |
| 3764e82e | 30 | struct device dev; |
| 4ec65b77 | 31 | struct device *carrier; |
| 3764e82e | 32 | int bus_nr; |
| 4ec65b77 | 33 | int (*get_irq)(struct mcb_device *dev); |
| 3764e82e JT |
34 | }; |
| 35 | #define to_mcb_bus(b) container_of((b), struct mcb_bus, dev) | |
| 36 | ||
| 37 | /** | |
| 38 | * struct mcb_device - MEN Chameleon Bus device | |
| 39 | * | |
| 40 | * @bus_list: internal list handling for bus code | |
| 41 | * @dev: device in kernel representation | |
| 42 | * @bus: mcb bus the device is plugged to | |
| 43 | * @subordinate: subordinate MCBus in case of bridge | |
| 44 | * @is_added: flag to check if device is added to bus | |
| 45 | * @driver: associated mcb_driver | |
| 46 | * @id: mcb device id | |
| 47 | * @inst: instance in Chameleon table | |
| 48 | * @group: group in Chameleon table | |
| 49 | * @var: variant in Chameleon table | |
| 50 | * @bar: BAR in Chameleon table | |
| 51 | * @rev: revision in Chameleon table | |
| 52 | * @irq: IRQ resource | |
| 53 | * @memory: memory resource | |
| 54 | */ | |
| 55 | struct mcb_device { | |
| 56 | struct list_head bus_list; | |
| 57 | struct device dev; | |
| 58 | struct mcb_bus *bus; | |
| 59 | struct mcb_bus *subordinate; | |
| 60 | bool is_added; | |
| 61 | struct mcb_driver *driver; | |
| 62 | u16 id; | |
| 63 | int inst; | |
| 64 | int group; | |
| 65 | int var; | |
| 66 | int bar; | |
| 67 | int rev; | |
| 68 | struct resource irq; | |
| 69 | struct resource mem; | |
| 70 | }; | |
| 71 | #define to_mcb_device(x) container_of((x), struct mcb_device, dev) | |
| 72 | ||
| 73 | /** | |
| 74 | * struct mcb_driver - MEN Chameleon Bus device driver | |
| 75 | * | |
| 76 | * @driver: device_driver | |
| 77 | * @id_table: mcb id table | |
| 78 | * @probe: probe callback | |
| 79 | * @remove: remove callback | |
| 80 | * @shutdown: shutdown callback | |
| 81 | */ | |
| 82 | struct mcb_driver { | |
| 83 | struct device_driver driver; | |
| 84 | const struct mcb_device_id *id_table; | |
| 85 | int (*probe)(struct mcb_device *mdev, const struct mcb_device_id *id); | |
| 86 | void (*remove)(struct mcb_device *mdev); | |
| 87 | void (*shutdown)(struct mcb_device *mdev); | |
| 88 | }; | |
| 89 | #define to_mcb_driver(x) container_of((x), struct mcb_driver, driver) | |
| 90 | ||
| 91 | static inline void *mcb_get_drvdata(struct mcb_device *dev) | |
| 92 | { | |
| 93 | return dev_get_drvdata(&dev->dev); | |
| 94 | } | |
| 95 | ||
| 96 | static inline void mcb_set_drvdata(struct mcb_device *dev, void *data) | |
| 97 | { | |
| 98 | dev_set_drvdata(&dev->dev, data); | |
| 99 | } | |
| 100 | ||
| 101 | extern int __must_check __mcb_register_driver(struct mcb_driver *drv, | |
| 102 | struct module *owner, | |
| 103 | const char *mod_name); | |
| 104 | #define mcb_register_driver(driver) \ | |
| 105 | __mcb_register_driver(driver, THIS_MODULE, KBUILD_MODNAME) | |
| 106 | extern void mcb_unregister_driver(struct mcb_driver *driver); | |
| 107 | #define module_mcb_driver(__mcb_driver) \ | |
| 108 | module_driver(__mcb_driver, mcb_register_driver, mcb_unregister_driver); | |
| 109 | extern void mcb_bus_add_devices(const struct mcb_bus *bus); | |
| 110 | extern int mcb_device_register(struct mcb_bus *bus, struct mcb_device *dev); | |
| 4ec65b77 | 111 | extern struct mcb_bus *mcb_alloc_bus(struct device *carrier); |
| 3764e82e JT |
112 | extern struct mcb_bus *mcb_bus_get(struct mcb_bus *bus); |
| 113 | extern void mcb_bus_put(struct mcb_bus *bus); | |
| 114 | extern struct mcb_device *mcb_alloc_dev(struct mcb_bus *bus); | |
| 115 | extern void mcb_free_dev(struct mcb_device *dev); | |
| 116 | extern void mcb_release_bus(struct mcb_bus *bus); | |
| 117 | extern struct resource *mcb_request_mem(struct mcb_device *dev, | |
| 118 | const char *name); | |
| 119 | extern void mcb_release_mem(struct resource *mem); | |
| 120 | extern int mcb_get_irq(struct mcb_device *dev); | |
| 121 | ||
| 122 | #endif /* _LINUX_MCB_H */ |