X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=common%2Fenv_common.c;h=906b41fccada86dc41d58d23ad42f74e7d5476b2;hb=refs%2Fheads%2Fpandora-2013.01;hp=61c4be54d0ea28e22e0f937235d3b27483a60a67;hpb=bd23b22badadcdc414a900828253961fc5ec6c39;p=pandora-u-boot.git diff --git a/common/env_common.c b/common/env_common.c index 61c4be54d0..906b41fcca 100644 --- a/common/env_common.c +++ b/common/env_common.c @@ -37,105 +37,10 @@ DECLARE_GLOBAL_DATA_PTR; /************************************************************************ * Default settings to be used when no valid environment is found */ - -const uchar default_environment[] = { -#ifdef CONFIG_BOOTARGS - "bootargs=" CONFIG_BOOTARGS "\0" -#endif -#ifdef CONFIG_BOOTCOMMAND - "bootcmd=" CONFIG_BOOTCOMMAND "\0" -#endif -#ifdef CONFIG_RAMBOOTCOMMAND - "ramboot=" CONFIG_RAMBOOTCOMMAND "\0" -#endif -#ifdef CONFIG_NFSBOOTCOMMAND - "nfsboot=" CONFIG_NFSBOOTCOMMAND "\0" -#endif -#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) - "bootdelay=" __stringify(CONFIG_BOOTDELAY) "\0" -#endif -#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0) - "baudrate=" __stringify(CONFIG_BAUDRATE) "\0" -#endif -#ifdef CONFIG_LOADS_ECHO - "loads_echo=" __stringify(CONFIG_LOADS_ECHO) "\0" -#endif -#ifdef CONFIG_ETHADDR - "ethaddr=" __stringify(CONFIG_ETHADDR) "\0" -#endif -#ifdef CONFIG_ETH1ADDR - "eth1addr=" __stringify(CONFIG_ETH1ADDR) "\0" -#endif -#ifdef CONFIG_ETH2ADDR - "eth2addr=" __stringify(CONFIG_ETH2ADDR) "\0" -#endif -#ifdef CONFIG_ETH3ADDR - "eth3addr=" __stringify(CONFIG_ETH3ADDR) "\0" -#endif -#ifdef CONFIG_ETH4ADDR - "eth4addr=" __stringify(CONFIG_ETH4ADDR) "\0" -#endif -#ifdef CONFIG_ETH5ADDR - "eth5addr=" __stringify(CONFIG_ETH5ADDR) "\0" -#endif -#ifdef CONFIG_ETHPRIME - "ethprime=" CONFIG_ETHPRIME "\0" -#endif -#ifdef CONFIG_IPADDR - "ipaddr=" __stringify(CONFIG_IPADDR) "\0" -#endif -#ifdef CONFIG_SERVERIP - "serverip=" __stringify(CONFIG_SERVERIP) "\0" -#endif -#ifdef CONFIG_SYS_AUTOLOAD - "autoload=" CONFIG_SYS_AUTOLOAD "\0" -#endif -#ifdef CONFIG_PREBOOT - "preboot=" CONFIG_PREBOOT "\0" -#endif -#ifdef CONFIG_ROOTPATH - "rootpath=" CONFIG_ROOTPATH "\0" -#endif -#ifdef CONFIG_GATEWAYIP - "gatewayip=" __stringify(CONFIG_GATEWAYIP) "\0" -#endif -#ifdef CONFIG_NETMASK - "netmask=" __stringify(CONFIG_NETMASK) "\0" -#endif -#ifdef CONFIG_HOSTNAME - "hostname=" __stringify(CONFIG_HOSTNAME) "\0" -#endif -#ifdef CONFIG_BOOTFILE - "bootfile=" CONFIG_BOOTFILE "\0" -#endif -#ifdef CONFIG_LOADADDR - "loadaddr=" __stringify(CONFIG_LOADADDR) "\0" -#endif -#ifdef CONFIG_CLOCKS_IN_MHZ - "clocks_in_mhz=1\0" -#endif -#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0) - "pcidelay=" __stringify(CONFIG_PCI_BOOTDELAY)"\0" -#endif -#ifdef CONFIG_ENV_VARS_UBOOT_CONFIG - "arch=" CONFIG_SYS_ARCH "\0" - "cpu=" CONFIG_SYS_CPU "\0" - "board=" CONFIG_SYS_BOARD "\0" -#ifdef CONFIG_SYS_VENDOR - "vendor=" CONFIG_SYS_VENDOR "\0" -#endif -#ifdef CONFIG_SYS_SOC - "soc=" CONFIG_SYS_SOC "\0" -#endif -#endif -#ifdef CONFIG_EXTRA_ENV_SETTINGS - CONFIG_EXTRA_ENV_SETTINGS -#endif - "\0" -}; +#include struct hsearch_data env_htab = { - .apply = env_check_apply, + .change_ok = env_flags_validate, }; static uchar __env_get_char_spec(int index) @@ -176,13 +81,42 @@ const uchar *env_get_addr(int index) return &default_environment[index]; } +/* + * Read an environment variable as a boolean + * Return -1 if variable does not exist (default to true) + */ +int getenv_yesno(const char *var) +{ + char *s = getenv(var); + + if (s == NULL) + return -1; + return (*s == '1' || *s == 'y' || *s == 'Y' || *s == 't' || *s == 'T') ? + 1 : 0; +} + +/* + * Look up the variable from the default environment + */ +char *getenv_default(const char *name) +{ + char *ret_val; + unsigned long really_valid = gd->env_valid; + unsigned long real_gd_flags = gd->flags; + + /* Pretend that the image is bad. */ + gd->flags &= ~GD_FLG_ENV_READY; + gd->env_valid = 0; + ret_val = getenv(name); + gd->env_valid = really_valid; + gd->flags = real_gd_flags; + return ret_val; +} + void set_default_env(const char *s) { - /* - * By default, do not apply changes as they will eventually - * be applied by someone else - */ - int do_apply = 0; + int flags = 0; + if (sizeof(default_environment) > ENV_SIZE) { puts("*** Error - default environment is too large\n\n"); return; @@ -194,14 +128,7 @@ void set_default_env(const char *s) "using default environment\n\n", s + 1); } else { - /* - * This set_to_default was explicitly asked for - * by the user, as opposed to being a recovery - * mechanism. Therefore we check every single - * variable and apply changes to the system - * right away (e.g. baudrate, console). - */ - do_apply = 1; + flags = H_INTERACTIVE; puts(s); } } else { @@ -209,8 +136,8 @@ void set_default_env(const char *s) } if (himport_r(&env_htab, (char *)default_environment, - sizeof(default_environment), '\0', 0, - 0, NULL, do_apply) == 0) + sizeof(default_environment), '\0', flags, + 0, NULL) == 0) error("Environment import failed: errno = %d\n", errno); gd->flags |= GD_FLG_ENV_READY; @@ -225,8 +152,8 @@ int set_default_vars(int nvars, char * const vars[]) * (and use \0 as a separator) */ return himport_r(&env_htab, (const char *)default_environment, - sizeof(default_environment), '\0', H_NOCLEAR, - nvars, vars, 1 /* do_apply */); + sizeof(default_environment), '\0', + H_NOCLEAR | H_INTERACTIVE, nvars, vars); } #ifndef CONFIG_SPL_BUILD @@ -250,7 +177,7 @@ int env_import(const char *buf, int check) } if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0, - 0, NULL, 0 /* do_apply */)) { + 0, NULL)) { gd->flags |= GD_FLG_ENV_READY; return 1; } @@ -267,6 +194,7 @@ void env_relocate(void) { #if defined(CONFIG_NEEDS_MANUAL_RELOC) env_reloc(); + env_htab.change_ok += gd->reloc_off; #endif if (gd->env_valid == 0) { #if defined(CONFIG_ENV_IS_NOWHERE) || defined(CONFIG_SPL_BUILD)