xref: /freebsd/sys/contrib/xen/device_tree_defs.h (revision ebacd8013fe5f7fdf9f6a5b286f6680dd2891036)
1 #ifndef __XEN_DEVICE_TREE_DEFS_H__
2 #define __XEN_DEVICE_TREE_DEFS_H__
3 
4 #if defined(__XEN__) || defined(__XEN_TOOLS__)
5 /*
6  * The device tree compiler (DTC) is allocating the phandle from 1 to
7  * onwards. Reserve a high value for the GIC phandle.
8  */
9 #define GUEST_PHANDLE_GIC (65000)
10 
11 #define GUEST_ROOT_ADDRESS_CELLS 2
12 #define GUEST_ROOT_SIZE_CELLS 2
13 
14 /**
15  * IRQ line type.
16  *
17  * DT_IRQ_TYPE_NONE            - default, unspecified type
18  * DT_IRQ_TYPE_EDGE_RISING     - rising edge triggered
19  * DT_IRQ_TYPE_EDGE_FALLING    - falling edge triggered
20  * DT_IRQ_TYPE_EDGE_BOTH       - rising and falling edge triggered
21  * DT_IRQ_TYPE_LEVEL_HIGH      - high level triggered
22  * DT_IRQ_TYPE_LEVEL_LOW       - low level triggered
23  * DT_IRQ_TYPE_LEVEL_MASK      - Mask to filter out the level bits
24  * DT_IRQ_TYPE_SENSE_MASK      - Mask for all the above bits
25  * DT_IRQ_TYPE_INVALID         - Use to initialize the type
26  */
27 #define DT_IRQ_TYPE_NONE           0x00000000
28 #define DT_IRQ_TYPE_EDGE_RISING    0x00000001
29 #define DT_IRQ_TYPE_EDGE_FALLING   0x00000002
30 #define DT_IRQ_TYPE_EDGE_BOTH                           \
31     (DT_IRQ_TYPE_EDGE_FALLING | DT_IRQ_TYPE_EDGE_RISING)
32 #define DT_IRQ_TYPE_LEVEL_HIGH     0x00000004
33 #define DT_IRQ_TYPE_LEVEL_LOW      0x00000008
34 #define DT_IRQ_TYPE_LEVEL_MASK                          \
35     (DT_IRQ_TYPE_LEVEL_LOW | DT_IRQ_TYPE_LEVEL_HIGH)
36 #define DT_IRQ_TYPE_SENSE_MASK     0x0000000f
37 
38 #define DT_IRQ_TYPE_INVALID        0x00000010
39 
40 #endif
41 
42 #endif
43