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Diffstat (limited to 'include/sysemu/device_tree.h')
| -rw-r--r-- | include/sysemu/device_tree.h | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/include/sysemu/device_tree.h b/include/sysemu/device_tree.h deleted file mode 100644 index eb60152..0000000 --- a/include/sysemu/device_tree.h +++ /dev/null @@ -1,215 +0,0 @@ -/* - * Header with function prototypes to help device tree manipulation using - * libfdt. It also provides functions to read entries from device tree proc - * interface. - * - * Copyright 2008 IBM Corporation. - * Authors: Jerone Young <jyoung5@us.ibm.com> - * Hollis Blanchard <hollisb@us.ibm.com> - * - * This work is licensed under the GNU GPL license version 2 or later. - * - */ - -#ifndef DEVICE_TREE_H -#define DEVICE_TREE_H - -void *create_device_tree(int *sizep); -void *load_device_tree(const char *filename_path, int *sizep); -#ifdef CONFIG_LINUX -/** - * load_device_tree_from_sysfs: reads the device tree information in the - * /proc/device-tree directory and return the corresponding binary blob - * buffer pointer. Asserts in case of error. - */ -void *load_device_tree_from_sysfs(void); -#endif - -/** - * qemu_fdt_node_path: return the paths of nodes matching a given - * name and compat string - * @fdt: pointer to the dt blob - * @name: node name - * @compat: compatibility string - * @errp: handle to an error object - * - * returns a newly allocated NULL-terminated array of node paths. - * Use g_strfreev() to free it. If one or more nodes were found, the - * array contains the path of each node and the last element equals to - * NULL. If there is no error but no matching node was found, the - * returned array contains a single element equal to NULL. If an error - * was encountered when parsing the blob, the function returns NULL - * - * @name may be NULL to wildcard names and only match compatibility - * strings. - */ -char **qemu_fdt_node_path(void *fdt, const char *name, const char *compat, - Error **errp); - -/** - * qemu_fdt_node_unit_path: return the paths of nodes matching a given - * node-name, ie. node-name and node-name@unit-address - * @fdt: pointer to the dt blob - * @name: node name - * @errp: handle to an error object - * - * returns a newly allocated NULL-terminated array of node paths. - * Use g_strfreev() to free it. If one or more nodes were found, the - * array contains the path of each node and the last element equals to - * NULL. If there is no error but no matching node was found, the - * returned array contains a single element equal to NULL. If an error - * was encountered when parsing the blob, the function returns NULL - */ -char **qemu_fdt_node_unit_path(void *fdt, const char *name, Error **errp); - -int qemu_fdt_setprop(void *fdt, const char *node_path, - const char *property, const void *val, int size); -int qemu_fdt_setprop_cell(void *fdt, const char *node_path, - const char *property, uint32_t val); -int qemu_fdt_setprop_u64(void *fdt, const char *node_path, - const char *property, uint64_t val); -int qemu_fdt_setprop_string(void *fdt, const char *node_path, - const char *property, const char *string); - -/** - * qemu_fdt_setprop_string_array: set a string array property - * - * @fdt: pointer to the dt blob - * @name: node name - * @prop: property array - * @array: pointer to an array of string pointers - * @len: length of array - * - * assigns a string array to a property. This function converts and - * array of strings to a sequential string with \0 separators before - * setting the property. - */ -int qemu_fdt_setprop_string_array(void *fdt, const char *node_path, - const char *prop, char **array, int len); - -int qemu_fdt_setprop_phandle(void *fdt, const char *node_path, - const char *property, - const char *target_node_path); -/** - * qemu_fdt_getprop: retrieve the value of a given property - * @fdt: pointer to the device tree blob - * @node_path: node path - * @property: name of the property to find - * @lenp: fdt error if any or length of the property on success - * @errp: handle to an error object - * - * returns a pointer to the property on success and NULL on failure - */ -const void *qemu_fdt_getprop(void *fdt, const char *node_path, - const char *property, int *lenp, - Error **errp); -/** - * qemu_fdt_getprop_cell: retrieve the value of a given 4 byte property - * @fdt: pointer to the device tree blob - * @node_path: node path - * @property: name of the property to find - * @lenp: fdt error if any or -EINVAL if the property size is different from - * 4 bytes, or 4 (expected length of the property) upon success. - * @errp: handle to an error object - * - * returns the property value on success - */ -uint32_t qemu_fdt_getprop_cell(void *fdt, const char *node_path, - const char *property, int *lenp, - Error **errp); -uint32_t qemu_fdt_get_phandle(void *fdt, const char *path); -uint32_t qemu_fdt_alloc_phandle(void *fdt); -int qemu_fdt_nop_node(void *fdt, const char *node_path); -int qemu_fdt_add_subnode(void *fdt, const char *name); -int qemu_fdt_add_path(void *fdt, const char *path); - -#define qemu_fdt_setprop_cells(fdt, node_path, property, ...) \ - do { \ - uint32_t qdt_tmp[] = { __VA_ARGS__ }; \ - for (unsigned i_ = 0; i_ < ARRAY_SIZE(qdt_tmp); i_++) { \ - qdt_tmp[i_] = cpu_to_be32(qdt_tmp[i_]); \ - } \ - qemu_fdt_setprop(fdt, node_path, property, qdt_tmp, \ - sizeof(qdt_tmp)); \ - } while (0) - -void qemu_fdt_dumpdtb(void *fdt, int size); - -/** - * qemu_fdt_setprop_sized_cells_from_array: - * @fdt: device tree blob - * @node_path: node to set property on - * @property: property to set - * @numvalues: number of values - * @values: array of number-of-cells, value pairs - * - * Set the specified property on the specified node in the device tree - * to be an array of cells. The values of the cells are specified via - * the values list, which alternates between "number of cells used by - * this value" and "value". - * number-of-cells must be either 1 or 2 (other values will result in - * an error being returned). If a value is too large to fit in the - * number of cells specified for it, an error is returned. - * - * This function is useful because device tree nodes often have cell arrays - * which are either lists of addresses or lists of address,size tuples, but - * the number of cells used for each element vary depending on the - * #address-cells and #size-cells properties of their parent node. - * If you know all your cell elements are one cell wide you can use the - * simpler qemu_fdt_setprop_cells(). If you're not setting up the - * array programmatically, qemu_fdt_setprop_sized_cells may be more - * convenient. - * - * Return value: 0 on success, <0 on error. - */ -int qemu_fdt_setprop_sized_cells_from_array(void *fdt, - const char *node_path, - const char *property, - int numvalues, - uint64_t *values); - -/** - * qemu_fdt_setprop_sized_cells: - * @fdt: device tree blob - * @node_path: node to set property on - * @property: property to set - * @...: list of number-of-cells, value pairs - * - * Set the specified property on the specified node in the device tree - * to be an array of cells. The values of the cells are specified via - * the variable arguments, which alternates between "number of cells - * used by this value" and "value". - * - * This is a convenience wrapper for the function - * qemu_fdt_setprop_sized_cells_from_array(). - * - * Return value: 0 on success, <0 on error. - */ -#define qemu_fdt_setprop_sized_cells(fdt, node_path, property, ...) \ - ({ \ - uint64_t qdt_tmp[] = { __VA_ARGS__ }; \ - qemu_fdt_setprop_sized_cells_from_array(fdt, node_path, \ - property, \ - ARRAY_SIZE(qdt_tmp) / 2, \ - qdt_tmp); \ - }) - - -/** - * qemu_fdt_randomize_seeds: - * @fdt: device tree blob - * - * Re-randomize all "rng-seed" properties with new seeds. - */ -void qemu_fdt_randomize_seeds(void *fdt); - -#define FDT_PCI_RANGE_RELOCATABLE 0x80000000 -#define FDT_PCI_RANGE_PREFETCHABLE 0x40000000 -#define FDT_PCI_RANGE_ALIASED 0x20000000 -#define FDT_PCI_RANGE_TYPE_MASK 0x03000000 -#define FDT_PCI_RANGE_MMIO_64BIT 0x03000000 -#define FDT_PCI_RANGE_MMIO 0x02000000 -#define FDT_PCI_RANGE_IOPORT 0x01000000 -#define FDT_PCI_RANGE_CONFIG 0x00000000 - -#endif /* DEVICE_TREE_H */ |