| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * IBM PowerPC Virtual I/O Infrastructure Support. |
| 3 | * |
| 4 | * Copyright (c) 2003 IBM Corp. |
| 5 | * Dave Engebretsen engebret@us.ibm.com |
| 6 | * Santiago Leon santil@us.ibm.com |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * as published by the Free Software Foundation; either version |
| 11 | * 2 of the License, or (at your option) any later version. |
| 12 | */ |
| 13 | |
| 14 | #ifndef _ASM_VIO_H |
| 15 | #define _ASM_VIO_H |
| 16 | |
| 17 | #include <linux/config.h> |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/errno.h> |
| 20 | #include <linux/device.h> |
| 21 | #include <linux/dma-mapping.h> |
| 22 | #include <asm/hvcall.h> |
| 23 | #include <asm/prom.h> |
| 24 | #include <asm/scatterlist.h> |
| 25 | /* |
| 26 | * Architecture-specific constants for drivers to |
| 27 | * extract attributes of the device using vio_get_attribute() |
| 28 | */ |
| 29 | #define VETH_MAC_ADDR "local-mac-address" |
| 30 | #define VETH_MCAST_FILTER_SIZE "ibm,mac-address-filters" |
| 31 | |
| 32 | /* End architecture-specific constants */ |
| 33 | |
| 34 | #define h_vio_signal(ua, mode) \ |
| 35 | plpar_hcall_norets(H_VIO_SIGNAL, ua, mode) |
| 36 | |
| 37 | #define VIO_IRQ_DISABLE 0UL |
| 38 | #define VIO_IRQ_ENABLE 1UL |
| 39 | |
| 40 | struct vio_dev; |
| 41 | struct vio_driver; |
| 42 | struct vio_device_id; |
| 43 | struct iommu_table; |
| 44 | |
| 45 | int vio_register_driver(struct vio_driver *drv); |
| 46 | void vio_unregister_driver(struct vio_driver *drv); |
| 47 | |
| 48 | #ifdef CONFIG_PPC_PSERIES |
| 49 | struct vio_dev * __devinit vio_register_device_node( |
| 50 | struct device_node *node_vdev); |
| 51 | #endif |
| 52 | void __devinit vio_unregister_device(struct vio_dev *dev); |
| 53 | struct vio_dev *vio_find_node(struct device_node *vnode); |
| 54 | |
| 55 | const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length); |
| 56 | int vio_get_irq(struct vio_dev *dev); |
| 57 | int vio_enable_interrupts(struct vio_dev *dev); |
| 58 | int vio_disable_interrupts(struct vio_dev *dev); |
| 59 | |
| 60 | extern struct dma_mapping_ops vio_dma_ops; |
| 61 | |
| 62 | extern struct bus_type vio_bus_type; |
| 63 | |
| 64 | struct vio_device_id { |
| 65 | char *type; |
| 66 | char *compat; |
| 67 | }; |
| 68 | |
| 69 | struct vio_driver { |
| 70 | struct list_head node; |
| 71 | char *name; |
| 72 | const struct vio_device_id *id_table; /* NULL if wants all devices */ |
| 73 | int (*probe) (struct vio_dev *dev, const struct vio_device_id *id); /* New device inserted */ |
| 74 | int (*remove) (struct vio_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ |
| 75 | unsigned long driver_data; |
| 76 | |
| 77 | struct device_driver driver; |
| 78 | }; |
| 79 | |
| 80 | static inline struct vio_driver *to_vio_driver(struct device_driver *drv) |
| 81 | { |
| 82 | return container_of(drv, struct vio_driver, driver); |
| 83 | } |
| 84 | |
| 85 | /* |
| 86 | * The vio_dev structure is used to describe virtual I/O devices. |
| 87 | */ |
| 88 | struct vio_dev { |
| 89 | struct iommu_table *iommu_table; /* vio_map_* uses this */ |
| 90 | char *name; |
| 91 | char *type; |
| 92 | uint32_t unit_address; |
| 93 | unsigned int irq; |
| 94 | |
| 95 | struct device dev; |
| 96 | }; |
| 97 | |
| 98 | static inline struct vio_dev *to_vio_dev(struct device *dev) |
| 99 | { |
| 100 | return container_of(dev, struct vio_dev, dev); |
| 101 | } |
| 102 | |
| 103 | #endif /* _ASM_VIO_H */ |