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author	matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>	2000-05-15 06:50:43 +0000
committer	matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>	2000-05-15 06:50:43 +0000
commit	36cbcc19f2117bf75d637ae4a8c978e968f0b367 (patch)
tree	38f54a422af9cbef30a89b88b5c6db11d401a3db /ext/Win32API
parent	4b0298134794cf25eb8a4c3a94d376545ca02f3c (diff)

2000-05-15

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@692 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Diffstat (limited to 'ext/Win32API')

0 files changed, 0 insertions, 0 deletions

// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2017 Google, Inc * Written by Simon Glass <sjg@chromium.org> */ #include <common.h> #include <env.h> #include <env_internal.h> #include <log.h> #include <asm/global_data.h> #include <linux/bitops.h> #include <linux/bug.h> DECLARE_GLOBAL_DATA_PTR; #if defined(CONFIG_NEEDS_MANUAL_RELOC) void env_fix_drivers(void) { struct env_driver *drv; const int n_ents = ll_entry_count(struct env_driver, env_driver); struct env_driver *entry; drv = ll_entry_start(struct env_driver, env_driver); for (entry = drv; entry != drv + n_ents; entry++) { if (entry->name) entry->name += gd->reloc_off; if (entry->load) entry->load += gd->reloc_off; if (entry->save) entry->save += gd->reloc_off; if (entry->erase) entry->erase += gd->reloc_off; if (entry->init) entry->init += gd->reloc_off; } } #endif static struct env_driver *_env_driver_lookup(enum env_location loc) { struct env_driver *drv; const int n_ents = ll_entry_count(struct env_driver, env_driver); struct env_driver *entry; drv = ll_entry_start(struct env_driver, env_driver); for (entry = drv; entry != drv + n_ents; entry++) { if (loc == entry->location) return entry; } /* Not found */ return NULL; } static enum env_location env_locations[] = { #ifdef CONFIG_ENV_IS_IN_EEPROM ENVL_EEPROM, #endif #ifdef CONFIG_ENV_IS_IN_EXT4 ENVL_EXT4, #endif #ifdef CONFIG_ENV_IS_IN_FAT ENVL_FAT, #endif #ifdef CONFIG_ENV_IS_IN_FLASH ENVL_FLASH, #endif #ifdef CONFIG_ENV_IS_IN_MMC ENVL_MMC, #endif #ifdef CONFIG_ENV_IS_IN_NAND ENVL_NAND, #endif #ifdef CONFIG_ENV_IS_IN_NVRAM ENVL_NVRAM, #endif #ifdef CONFIG_ENV_IS_IN_REMOTE ENVL_REMOTE, #endif #ifdef CONFIG_ENV_IS_IN_SATA ENVL_ESATA, #endif #ifdef CONFIG_ENV_IS_IN_SPI_FLASH ENVL_SPI_FLASH, #endif #ifdef CONFIG_ENV_IS_IN_UBI ENVL_UBI, #endif #ifdef CONFIG_ENV_IS_NOWHERE ENVL_NOWHERE, #endif }; static bool env_has_inited(enum env_location location) { return gd->env_has_init & BIT(location); } static void env_set_inited(enum env_location location) { /* * We're using a 32-bits bitmask stored in gd (env_has_init) * using the above enum value as the bit index. We need to * make sure that we're not overflowing it. */ BUILD_BUG_ON(ENVL_COUNT > BITS_PER_LONG); gd->env_has_init |= BIT(location); } /** * env_get_location() - Returns the best env location for a board * @op: operations performed on the environment * @prio: priority between the multiple environments, 0 being the * highest priority * * This will return the preferred environment for the given priority. * This is overridable by boards if they need to. * * All implementations are free to use the operation, the priority and * any other data relevant to their choice, but must take into account * the fact that the lowest prority (0) is the most important location * in the system. The following locations should be returned by order * of descending priorities, from the highest to the lowest priority. * * Returns: * an enum env_location value on success, a negative error code otherwise */ __weak enum env_location env_get_location(enum env_operation op, int prio) { if (prio >= ARRAY_SIZE(env_locations)) return ENVL_UNKNOWN; return env_locations[prio]; } /** * env_driver_lookup() - Finds the most suited environment location * @op: operations performed on the environment * @prio: priority between the multiple environments, 0 being the * highest priority * * This will try to find the available environment with the highest * priority in the system. * * Returns: * NULL on error, a pointer to a struct env_driver otherwise */ static struct env_driver *env_driver_lookup(enum env_operation op, int prio) { enum env_location loc = env_get_location(op, prio); struct env_driver *drv; if (loc == ENVL_UNKNOWN) return NULL; drv = _env_driver_lookup(loc); if (!drv) { debug("%s: No environment driver for location %d\n", __func__, loc); return NULL; } return drv; } __weak int env_get_char_spec(int index) { return *(uchar *)(gd->env_addr + index); } int env_get_char(int index) { if (gd->env_valid == ENV_INVALID) return default_environment[index]; else return env_get_char_spec(index); } int env_load(void) { struct env_driver *drv; int best_prio = -1; int prio; for (prio = 0; (drv = env_driver_lookup(ENVOP_LOAD, prio)); prio++) { int ret; if (!env_has_inited(drv->location)) continue; printf("Loading Environment from %s... ", drv->name); /* * In error case, the error message must be printed during * drv->load() in some underlying API, and it must be exactly


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