90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/*
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* VAS_EBOOT -- GRand Unified Bootloader
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* Copyright (C) 2016 Free Software Foundation, Inc.
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*
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* VAS_EBOOT is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* VAS_EBOOT is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with VAS_EBOOT. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef VAS_EBOOT_FDTBUS_HEADER
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#define VAS_EBOOT_FDTBUS_HEADER 1
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#include <VasEBoot/fdt.h>
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#include <VasEBoot/err.h>
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struct VasEBoot_fdtbus_dev
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{
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struct VasEBoot_fdtbus_dev *next;
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struct VasEBoot_fdtbus_dev *parent;
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int node;
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struct VasEBoot_fdtbus_driver *driver;
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};
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struct VasEBoot_fdtbus_driver
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{
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struct VasEBoot_fdtbus_driver *next;
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struct VasEBoot_fdtbus_driver **prev;
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const char *compatible;
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VasEBoot_err_t (*attach) (const struct VasEBoot_fdtbus_dev *dev);
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void (*detach) (const struct VasEBoot_fdtbus_dev *dev);
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/* Message bus operations. */
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VasEBoot_err_t (*send) (const struct VasEBoot_fdtbus_dev *dev, const void *data, VasEBoot_size_t sz);
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VasEBoot_err_t (*receive) (const struct VasEBoot_fdtbus_dev *dev, void *data, VasEBoot_size_t sz);
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VasEBoot_err_t (*start) (const struct VasEBoot_fdtbus_dev *dev);
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void (*stop) (const struct VasEBoot_fdtbus_dev *dev);
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};
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extern char EXPORT_VAR(VasEBoot_fdtbus_invalid_mapping)[1];
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static inline int
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VasEBoot_fdtbus_is_mapping_valid (volatile void *m)
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{
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return m != VasEBoot_fdtbus_invalid_mapping;
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}
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volatile void *
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EXPORT_FUNC(VasEBoot_fdtbus_map_reg) (const struct VasEBoot_fdtbus_dev *dev, int reg, VasEBoot_size_t *size);
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const void *
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EXPORT_FUNC(VasEBoot_fdtbus_get_fdt) (void);
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const char *
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EXPORT_FUNC(VasEBoot_fdtbus_get_name) (const struct VasEBoot_fdtbus_dev *dev);
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const void *
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EXPORT_FUNC(VasEBoot_fdtbus_get_prop) (const struct VasEBoot_fdtbus_dev *dev,
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const char *name,
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VasEBoot_uint32_t *len);
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void
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EXPORT_FUNC(VasEBoot_fdtbus_register) (struct VasEBoot_fdtbus_driver *driver);
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void
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EXPORT_FUNC(VasEBoot_fdtbus_unregister) (struct VasEBoot_fdtbus_driver *driver);
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int
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EXPORT_FUNC(VasEBoot_fdtbus_is_compatible) (const char *compat_string,
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const struct VasEBoot_fdtbus_dev *dev);
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/* Must be called before any register(). */
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/* dtb is assumed to be unfreeable and must remain
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valid for lifetime of VAS_EBOOT.
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*/
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void
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VasEBoot_fdtbus_init (const void *dtb, VasEBoot_size_t size);
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#endif
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