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Diffstat (limited to '')
| -rw-r--r-- | include/asm-sparc/ebus_64.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/include/asm-sparc/ebus_64.h b/include/asm-sparc/ebus_64.h new file mode 100644 index 000000000000..fcc62b97ced5 --- /dev/null +++ b/include/asm-sparc/ebus_64.h @@ -0,0 +1,94 @@ +/* + * ebus.h: PCI to Ebus pseudo driver software state. + * + * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) + * Copyright (C) 1999 David S. Miller (davem@redhat.com) + */ + +#ifndef __SPARC64_EBUS_H +#define __SPARC64_EBUS_H + +#include <asm/oplib.h> +#include <asm/prom.h> +#include <asm/of_device.h> + +struct linux_ebus_child { + struct linux_ebus_child *next; + struct linux_ebus_device *parent; + struct linux_ebus *bus; + struct device_node *prom_node; + struct resource resource[PROMREG_MAX]; + int num_addrs; + unsigned int irqs[PROMINTR_MAX]; + int num_irqs; +}; + +struct linux_ebus_device { + struct of_device ofdev; + struct linux_ebus_device *next; + struct linux_ebus_child *children; + struct linux_ebus *bus; + struct device_node *prom_node; + struct resource resource[PROMREG_MAX]; + int num_addrs; + unsigned int irqs[PROMINTR_MAX]; + int num_irqs; +}; +#define to_ebus_device(d) container_of(d, struct linux_ebus_device, ofdev.dev) + +struct linux_ebus { + struct of_device ofdev; + struct linux_ebus *next; + struct linux_ebus_device *devices; + struct pci_dev *self; + int index; + int is_rio; + struct device_node *prom_node; +}; +#define to_ebus(d) container_of(d, struct linux_ebus, ofdev.dev) + +struct ebus_dma_info { + spinlock_t lock; + void __iomem *regs; + + unsigned int flags; +#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001 +#define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002 + + /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is + * set. + */ + void (*callback)(struct ebus_dma_info *p, int event, void *cookie); + void *client_cookie; + unsigned int irq; +#define EBUS_DMA_EVENT_ERROR 1 +#define EBUS_DMA_EVENT_DMA 2 +#define EBUS_DMA_EVENT_DEVICE 4 + + unsigned char name[64]; +}; + +extern int ebus_dma_register(struct ebus_dma_info *p); +extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on); +extern void ebus_dma_unregister(struct ebus_dma_info *p); +extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr, + size_t len); +extern void ebus_dma_prepare(struct ebus_dma_info *p, int write); +extern unsigned int ebus_dma_residue(struct ebus_dma_info *p); +extern unsigned int ebus_dma_addr(struct ebus_dma_info *p); +extern void ebus_dma_enable(struct ebus_dma_info *p, int on); + +extern struct linux_ebus *ebus_chain; + +extern void ebus_init(void); + +#define for_each_ebus(bus) \ + for((bus) = ebus_chain; (bus); (bus) = (bus)->next) + +#define for_each_ebusdev(dev, bus) \ + for((dev) = (bus)->devices; (dev); (dev) = (dev)->next) + +#define for_each_edevchild(dev, child) \ + for((child) = (dev)->children; (child); (child) = (child)->next) + +#endif /* !(__SPARC64_EBUS_H) */ |