95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/*
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* ebus.h: PCI to Ebus pseudo driver software state.
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*
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* Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be)
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* Copyright (C) 1999 David S. Miller (davem@redhat.com)
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*/
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#ifndef __SPARC64_EBUS_H
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#define __SPARC64_EBUS_H
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#include <asm/oplib.h>
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#include <asm/prom.h>
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#include <asm/of_device.h>
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struct linux_ebus_child {
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struct linux_ebus_child *next;
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struct linux_ebus_device *parent;
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struct linux_ebus *bus;
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struct device_node *prom_node;
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struct resource resource[PROMREG_MAX];
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int num_addrs;
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unsigned int irqs[PROMINTR_MAX];
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int num_irqs;
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};
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struct linux_ebus_device {
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struct of_device ofdev;
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struct linux_ebus_device *next;
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struct linux_ebus_child *children;
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struct linux_ebus *bus;
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struct device_node *prom_node;
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struct resource resource[PROMREG_MAX];
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int num_addrs;
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unsigned int irqs[PROMINTR_MAX];
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int num_irqs;
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};
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#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev)
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struct linux_ebus {
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struct of_device ofdev;
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struct linux_ebus *next;
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struct linux_ebus_device *devices;
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struct pci_dev *self;
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int index;
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int is_rio;
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struct device_node *prom_node;
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};
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#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev)
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struct ebus_dma_info {
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spinlock_t lock;
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void __iomem *regs;
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unsigned int flags;
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#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001
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#define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002
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/* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
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* set.
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*/
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void (*callback)(struct ebus_dma_info *p, int event, void *cookie);
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void *client_cookie;
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unsigned int irq;
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#define EBUS_DMA_EVENT_ERROR 1
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#define EBUS_DMA_EVENT_DMA 2
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#define EBUS_DMA_EVENT_DEVICE 4
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unsigned char name[64];
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};
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extern int ebus_dma_register(struct ebus_dma_info *p);
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extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
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extern void ebus_dma_unregister(struct ebus_dma_info *p);
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extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
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size_t len);
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extern void ebus_dma_prepare(struct ebus_dma_info *p, int write);
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extern unsigned int ebus_dma_residue(struct ebus_dma_info *p);
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extern unsigned int ebus_dma_addr(struct ebus_dma_info *p);
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extern void ebus_dma_enable(struct ebus_dma_info *p, int on);
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extern struct linux_ebus *ebus_chain;
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extern void ebus_init(void);
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#define for_each_ebus(bus) \
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for((bus) = ebus_chain; (bus); (bus) = (bus)->next)
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#define for_each_ebusdev(dev, bus) \
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for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
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#define for_each_edevchild(dev, child) \
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for((child) = (dev)->children; (child); (child) = (child)->next)
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#endif /* !(__SPARC64_EBUS_H) */
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