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142 lines
3.9 KiB
142 lines
3.9 KiB
/* |
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* MEN Chameleon Bus. |
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* |
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* Copyright (C) 2014 MEN Mikroelektronik GmbH (www.men.de) |
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* Author: Johannes Thumshirn <johannes.thumshirn@men.de> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the Free |
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* Software Foundation; version 2 of the License. |
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*/ |
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#ifndef _LINUX_MCB_H |
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#define _LINUX_MCB_H |
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#include <linux/mod_devicetable.h> |
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#include <linux/device.h> |
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#include <linux/irqreturn.h> |
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#define CHAMELEON_FILENAME_LEN 12 |
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struct mcb_driver; |
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struct mcb_device; |
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/** |
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* struct mcb_bus - MEN Chameleon Bus |
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* |
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* @dev: bus device |
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* @carrier: pointer to carrier device |
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* @bus_nr: mcb bus number |
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* @get_irq: callback to get IRQ number |
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* @revision: the FPGA's revision number |
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* @model: the FPGA's model number |
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* @filename: the FPGA's name |
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*/ |
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struct mcb_bus { |
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struct device dev; |
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struct device *carrier; |
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int bus_nr; |
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u8 revision; |
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char model; |
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u8 minor; |
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char name[CHAMELEON_FILENAME_LEN + 1]; |
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int (*get_irq)(struct mcb_device *dev); |
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}; |
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static inline struct mcb_bus *to_mcb_bus(struct device *dev) |
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{ |
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return container_of(dev, struct mcb_bus, dev); |
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} |
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/** |
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* struct mcb_device - MEN Chameleon Bus device |
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* |
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* @dev: device in kernel representation |
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* @bus: mcb bus the device is plugged to |
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* @is_added: flag to check if device is added to bus |
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* @driver: associated mcb_driver |
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* @id: mcb device id |
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* @inst: instance in Chameleon table |
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* @group: group in Chameleon table |
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* @var: variant in Chameleon table |
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* @bar: BAR in Chameleon table |
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* @rev: revision in Chameleon table |
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* @irq: IRQ resource |
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* @memory: memory resource |
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*/ |
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struct mcb_device { |
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struct device dev; |
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struct mcb_bus *bus; |
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bool is_added; |
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struct mcb_driver *driver; |
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u16 id; |
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int inst; |
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int group; |
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int var; |
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int bar; |
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int rev; |
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struct resource irq; |
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struct resource mem; |
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struct device *dma_dev; |
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}; |
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static inline struct mcb_device *to_mcb_device(struct device *dev) |
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{ |
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return container_of(dev, struct mcb_device, dev); |
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} |
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/** |
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* struct mcb_driver - MEN Chameleon Bus device driver |
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* |
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* @driver: device_driver |
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* @id_table: mcb id table |
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* @probe: probe callback |
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* @remove: remove callback |
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* @shutdown: shutdown callback |
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*/ |
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struct mcb_driver { |
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struct device_driver driver; |
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const struct mcb_device_id *id_table; |
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int (*probe)(struct mcb_device *mdev, const struct mcb_device_id *id); |
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void (*remove)(struct mcb_device *mdev); |
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void (*shutdown)(struct mcb_device *mdev); |
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}; |
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static inline struct mcb_driver *to_mcb_driver(struct device_driver *drv) |
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{ |
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return container_of(drv, struct mcb_driver, driver); |
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} |
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static inline void *mcb_get_drvdata(struct mcb_device *dev) |
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{ |
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return dev_get_drvdata(&dev->dev); |
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} |
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static inline void mcb_set_drvdata(struct mcb_device *dev, void *data) |
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{ |
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dev_set_drvdata(&dev->dev, data); |
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} |
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extern int __must_check __mcb_register_driver(struct mcb_driver *drv, |
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struct module *owner, |
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const char *mod_name); |
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#define mcb_register_driver(driver) \ |
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__mcb_register_driver(driver, THIS_MODULE, KBUILD_MODNAME) |
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extern void mcb_unregister_driver(struct mcb_driver *driver); |
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#define module_mcb_driver(__mcb_driver) \ |
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module_driver(__mcb_driver, mcb_register_driver, mcb_unregister_driver); |
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extern void mcb_bus_add_devices(const struct mcb_bus *bus); |
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extern int mcb_device_register(struct mcb_bus *bus, struct mcb_device *dev); |
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extern struct mcb_bus *mcb_alloc_bus(struct device *carrier); |
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extern struct mcb_bus *mcb_bus_get(struct mcb_bus *bus); |
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extern void mcb_bus_put(struct mcb_bus *bus); |
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extern struct mcb_device *mcb_alloc_dev(struct mcb_bus *bus); |
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extern void mcb_free_dev(struct mcb_device *dev); |
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extern void mcb_release_bus(struct mcb_bus *bus); |
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extern struct resource *mcb_request_mem(struct mcb_device *dev, |
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const char *name); |
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extern void mcb_release_mem(struct resource *mem); |
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extern int mcb_get_irq(struct mcb_device *dev); |
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extern struct resource *mcb_get_resource(struct mcb_device *dev, |
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unsigned int type); |
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#endif /* _LINUX_MCB_H */
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