From 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:29:51 +0200 Subject: Adding upstream version 2.06. Signed-off-by: Daniel Baumann --- include/grub/fdtbus.h | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 include/grub/fdtbus.h (limited to 'include/grub/fdtbus.h') diff --git a/include/grub/fdtbus.h b/include/grub/fdtbus.h new file mode 100644 index 0000000..f519c40 --- /dev/null +++ b/include/grub/fdtbus.h @@ -0,0 +1,89 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2016 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see . + */ + +#ifndef GRUB_FDTBUS_HEADER +#define GRUB_FDTBUS_HEADER 1 + +#include +#include + +struct grub_fdtbus_dev +{ + struct grub_fdtbus_dev *next; + struct grub_fdtbus_dev *parent; + int node; + struct grub_fdtbus_driver *driver; +}; + +struct grub_fdtbus_driver +{ + struct grub_fdtbus_driver *next; + struct grub_fdtbus_driver **prev; + + const char *compatible; + + grub_err_t (*attach) (const struct grub_fdtbus_dev *dev); + void (*detach) (const struct grub_fdtbus_dev *dev); + + /* Message bus operations. */ + grub_err_t (*send) (const struct grub_fdtbus_dev *dev, const void *data, grub_size_t sz); + grub_err_t (*receive) (const struct grub_fdtbus_dev *dev, void *data, grub_size_t sz); + grub_err_t (*start) (const struct grub_fdtbus_dev *dev); + void (*stop) (const struct grub_fdtbus_dev *dev); +}; + +extern char EXPORT_VAR(grub_fdtbus_invalid_mapping)[1]; + +static inline int +grub_fdtbus_is_mapping_valid (volatile void *m) +{ + return m != grub_fdtbus_invalid_mapping; +} + +volatile void * +EXPORT_FUNC(grub_fdtbus_map_reg) (const struct grub_fdtbus_dev *dev, int reg, grub_size_t *size); + +const void * +EXPORT_FUNC(grub_fdtbus_get_fdt) (void); + +const char * +EXPORT_FUNC(grub_fdtbus_get_name) (const struct grub_fdtbus_dev *dev); + +const void * +EXPORT_FUNC(grub_fdtbus_get_prop) (const struct grub_fdtbus_dev *dev, + const char *name, + grub_uint32_t *len); + +void +EXPORT_FUNC(grub_fdtbus_register) (struct grub_fdtbus_driver *driver); + +void +EXPORT_FUNC(grub_fdtbus_unregister) (struct grub_fdtbus_driver *driver); + +int +EXPORT_FUNC(grub_fdtbus_is_compatible) (const char *compat_string, + const struct grub_fdtbus_dev *dev); + +/* Must be called before any register(). */ +/* dtb is assumed to be unfreeable and must remain + valid for lifetime of GRUB. + */ +void +grub_fdtbus_init (const void *dtb, grub_size_t size); + +#endif -- cgit v1.2.3