145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
#ifndef __MACIO_ASIC_H__
|
|
#define __MACIO_ASIC_H__
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/of_device.h>
|
|
|
|
extern struct bus_type macio_bus_type;
|
|
|
|
/* MacIO device driver is defined later */
|
|
struct macio_driver;
|
|
struct macio_chip;
|
|
|
|
#define MACIO_DEV_COUNT_RESOURCES 8
|
|
#define MACIO_DEV_COUNT_IRQS 8
|
|
|
|
/*
|
|
* the macio_bus structure is used to describe a "virtual" bus
|
|
* within a MacIO ASIC. It's typically provided by a macio_pci_asic
|
|
* PCI device, but could be provided differently as well (nubus
|
|
* machines using a fake OF tree).
|
|
*
|
|
* The pdev field can be NULL on non-PCI machines
|
|
*/
|
|
struct macio_bus
|
|
{
|
|
struct macio_chip *chip; /* macio_chip (private use) */
|
|
int index; /* macio chip index in system */
|
|
#ifdef CONFIG_PCI
|
|
struct pci_dev *pdev; /* PCI device hosting this bus */
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* the macio_dev structure is used to describe a device
|
|
* within an Apple MacIO ASIC.
|
|
*/
|
|
struct macio_dev
|
|
{
|
|
struct macio_bus *bus; /* macio bus this device is on */
|
|
struct macio_dev *media_bay; /* Device is part of a media bay */
|
|
struct platform_device ofdev;
|
|
struct device_dma_parameters dma_parms; /* ide needs that */
|
|
int n_resources;
|
|
struct resource resource[MACIO_DEV_COUNT_RESOURCES];
|
|
int n_interrupts;
|
|
struct resource interrupt[MACIO_DEV_COUNT_IRQS];
|
|
};
|
|
#define to_macio_device(d) container_of(d, struct macio_dev, ofdev.dev)
|
|
#define of_to_macio_device(d) container_of(d, struct macio_dev, ofdev)
|
|
|
|
extern struct macio_dev *macio_dev_get(struct macio_dev *dev);
|
|
extern void macio_dev_put(struct macio_dev *dev);
|
|
|
|
/*
|
|
* Accessors to resources & interrupts and other device
|
|
* fields
|
|
*/
|
|
|
|
static inline int macio_resource_count(struct macio_dev *dev)
|
|
{
|
|
return dev->n_resources;
|
|
}
|
|
|
|
static inline unsigned long macio_resource_start(struct macio_dev *dev, int resource_no)
|
|
{
|
|
return dev->resource[resource_no].start;
|
|
}
|
|
|
|
static inline unsigned long macio_resource_end(struct macio_dev *dev, int resource_no)
|
|
{
|
|
return dev->resource[resource_no].end;
|
|
}
|
|
|
|
static inline unsigned long macio_resource_len(struct macio_dev *dev, int resource_no)
|
|
{
|
|
struct resource *res = &dev->resource[resource_no];
|
|
if (res->start == 0 || res->end == 0 || res->end < res->start)
|
|
return 0;
|
|
return resource_size(res);
|
|
}
|
|
|
|
extern int macio_enable_devres(struct macio_dev *dev);
|
|
|
|
extern int macio_request_resource(struct macio_dev *dev, int resource_no, const char *name);
|
|
extern void macio_release_resource(struct macio_dev *dev, int resource_no);
|
|
extern int macio_request_resources(struct macio_dev *dev, const char *name);
|
|
extern void macio_release_resources(struct macio_dev *dev);
|
|
|
|
static inline int macio_irq_count(struct macio_dev *dev)
|
|
{
|
|
return dev->n_interrupts;
|
|
}
|
|
|
|
static inline int macio_irq(struct macio_dev *dev, int irq_no)
|
|
{
|
|
return dev->interrupt[irq_no].start;
|
|
}
|
|
|
|
static inline void macio_set_drvdata(struct macio_dev *dev, void *data)
|
|
{
|
|
dev_set_drvdata(&dev->ofdev.dev, data);
|
|
}
|
|
|
|
static inline void* macio_get_drvdata(struct macio_dev *dev)
|
|
{
|
|
return dev_get_drvdata(&dev->ofdev.dev);
|
|
}
|
|
|
|
static inline struct device_node *macio_get_of_node(struct macio_dev *mdev)
|
|
{
|
|
return mdev->ofdev.dev.of_node;
|
|
}
|
|
|
|
#ifdef CONFIG_PCI
|
|
static inline struct pci_dev *macio_get_pci_dev(struct macio_dev *mdev)
|
|
{
|
|
return mdev->bus->pdev;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* A driver for a mac-io chip based device
|
|
*/
|
|
struct macio_driver
|
|
{
|
|
int (*probe)(struct macio_dev* dev, const struct of_device_id *match);
|
|
int (*remove)(struct macio_dev* dev);
|
|
|
|
int (*suspend)(struct macio_dev* dev, pm_message_t state);
|
|
int (*resume)(struct macio_dev* dev);
|
|
int (*shutdown)(struct macio_dev* dev);
|
|
|
|
#ifdef CONFIG_PMAC_MEDIABAY
|
|
void (*mediabay_event)(struct macio_dev* dev, int mb_state);
|
|
#endif
|
|
struct device_driver driver;
|
|
};
|
|
#define to_macio_driver(drv) container_of(drv,struct macio_driver, driver)
|
|
|
|
extern int macio_register_driver(struct macio_driver *);
|
|
extern void macio_unregister_driver(struct macio_driver *);
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* __MACIO_ASIC_H__ */
|