u-boot/include/common.h
Jean-Jacques Hiblot 376ddf9d4a gzip: add a function to parse the header
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-05 21:31:04 -04:00

772 lines
21 KiB
C

/*
* (C) Copyright 2000-2009
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __COMMON_H_
#define __COMMON_H_ 1
#ifndef __ASSEMBLY__ /* put C only stuff in this section */
typedef unsigned char uchar;
typedef volatile unsigned long vu_long;
typedef volatile unsigned short vu_short;
typedef volatile unsigned char vu_char;
/* Allow sharing constants with type modifiers between C and assembly. */
#define _AC(X, Y) (X##Y)
#include <config.h>
#include <errno.h>
#include <time.h>
#include <asm-offsets.h>
#include <linux/bitops.h>
#include <linux/bug.h>
#include <linux/delay.h>
#include <linux/types.h>
#include <linux/printk.h>
#include <linux/string.h>
#include <linux/stringify.h>
#include <asm/ptrace.h>
#include <stdarg.h>
#include <stdio.h>
#include <linux/kernel.h>
#include <part.h>
#include <flash.h>
#include <image.h>
/* Bring in printf format macros if inttypes.h is included */
#define __STDC_FORMAT_MACROS
#ifdef __LP64__
#define CONFIG_SYS_SUPPORT_64BIT_DATA
#endif
#ifdef DEBUG
#define _DEBUG 1
#else
#define _DEBUG 0
#endif
#ifdef CONFIG_SPL_BUILD
#define _SPL_BUILD 1
#else
#define _SPL_BUILD 0
#endif
/*
* Output a debug text when condition "cond" is met. The "cond" should be
* computed by a preprocessor in the best case, allowing for the best
* optimization.
*/
#define debug_cond(cond, fmt, args...) \
do { \
if (cond) \
printf(pr_fmt(fmt), ##args); \
} while (0)
/* Show a message if DEBUG is defined in a file */
#define debug(fmt, args...) \
debug_cond(_DEBUG, fmt, ##args)
/* Show a message if not in SPL */
#define warn_non_spl(fmt, args...) \
debug_cond(!_SPL_BUILD, fmt, ##args)
/*
* An assertion is run-time check done in debug mode only. If DEBUG is not
* defined then it is skipped. If DEBUG is defined and the assertion fails,
* then it calls panic*( which may or may not reset/halt U-Boot (see
* CONFIG_PANIC_HANG), It is hoped that all failing assertions are found
* before release, and after release it is hoped that they don't matter. But
* in any case these failing assertions cannot be fixed with a reset (which
* may just do the same assertion again).
*/
void __assert_fail(const char *assertion, const char *file, unsigned line,
const char *function);
#define assert(x) \
({ if (!(x) && _DEBUG) \
__assert_fail(#x, __FILE__, __LINE__, __func__); })
typedef void (interrupt_handler_t)(void *);
#include <asm/u-boot.h> /* boot information for Linux kernel */
#include <asm/global_data.h> /* global data used for startup functions */
#if defined(CONFIG_ENV_IS_EMBEDDED)
#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
#elif ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
(CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
defined(CONFIG_ENV_IS_IN_NVRAM)
#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
#else
#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
#endif
/*
* Function Prototypes
*/
int dram_init(void);
/**
* dram_init_banksize() - Set up DRAM bank sizes
*
* This can be implemented by boards to set up the DRAM bank information in
* gd->bd->bi_dram(). It is called just before relocation, after dram_init()
* is called.
*
* If this is not provided, a default implementation will try to set up a
* single bank. It will do this if CONFIG_NR_DRAM_BANKS and
* CONFIG_SYS_SDRAM_BASE are set. The bank will have a start address of
* CONFIG_SYS_SDRAM_BASE and the size will be determined by a call to
* get_effective_memsize().
*
* @return 0 if OK, -ve on error
*/
int dram_init_banksize(void);
void hang (void) __attribute__ ((noreturn));
int timer_init(void);
int cpu_init(void);
#include <display_options.h>
/* common/main.c */
void main_loop (void);
int run_command(const char *cmd, int flag);
int run_command_repeatable(const char *cmd, int flag);
/**
* Run a list of commands separated by ; or even \0
*
* Note that if 'len' is not -1, then the command does not need to be nul
* terminated, Memory will be allocated for the command in that case.
*
* @param cmd List of commands to run, each separated bu semicolon
* @param len Length of commands excluding terminator if known (-1 if not)
* @param flag Execution flags (CMD_FLAG_...)
* @return 0 on success, or != 0 on error.
*/
int run_command_list(const char *cmd, int len, int flag);
/* arch/$(ARCH)/lib/board.c */
void board_init_f(ulong);
void board_init_r(gd_t *, ulong) __attribute__ ((noreturn));
/**
* ulong board_init_f_alloc_reserve - allocate reserved area
*
* This function is called by each architecture very early in the start-up
* code to allow the C runtime to reserve space on the stack for writable
* 'globals' such as GD and the malloc arena.
*
* @top: top of the reserve area, growing down.
* @return: bottom of reserved area
*/
ulong board_init_f_alloc_reserve(ulong top);
/**
* board_init_f_init_reserve - initialize the reserved area(s)
*
* This function is called once the C runtime has allocated the reserved
* area on the stack. It must initialize the GD at the base of that area.
*
* @base: top from which reservation was done
*/
void board_init_f_init_reserve(ulong base);
/**
* arch_setup_gd() - Set up the global_data pointer
*
* This pointer is special in some architectures and cannot easily be assigned
* to. For example on x86 it is implemented by adding a specific record to its
* Global Descriptor Table! So we we provide a function to carry out this task.
* For most architectures this can simply be:
*
* gd = gd_ptr;
*
* @gd_ptr: Pointer to global data
*/
void arch_setup_gd(gd_t *gd_ptr);
int checkboard(void);
int show_board_info(void);
int checkflash(void);
int checkdram(void);
int last_stage_init(void);
extern ulong monitor_flash_len;
int mac_read_from_eeprom(void);
extern u8 __dtb_dt_begin[]; /* embedded device tree blob */
int set_cpu_clk_info(void);
int mdm_init(void);
int print_cpuinfo(void);
int update_flash_size(int flash_size);
int arch_early_init_r(void);
/*
* setup_board_extra() - Fill in extra details in the bd_t structure
*
* @return 0 if OK, -ve on error
*/
int setup_board_extra(void);
/**
* arch_fsp_init() - perform firmware support package init
*
* Where U-Boot relies on binary blobs to handle part of the system init, this
* function can be used to set up the blobs. This is used on some Intel
* platforms.
*/
int arch_fsp_init(void);
/**
* arch_cpu_init_dm() - init CPU after driver model is available
*
* This is called immediately after driver model is available before
* relocation. This is similar to arch_cpu_init() but is able to reference
* devices
*
* @return 0 if OK, -ve on error
*/
int arch_cpu_init_dm(void);
/**
* Reserve all necessary stacks
*
* This is used in generic board init sequence in common/board_f.c. Each
* architecture could provide this function to tailor the required stacks.
*
* On entry gd->start_addr_sp is pointing to the suggested top of the stack.
* The callee ensures gd->start_add_sp is 16-byte aligned, so architectures
* require only this can leave it untouched.
*
* On exit gd->start_addr_sp and gd->irq_sp should be set to the respective
* positions of the stack. The stack pointer(s) will be set to this later.
* gd->irq_sp is only required, if the architecture needs it.
*
* @return 0 if no error
*/
__weak int arch_reserve_stacks(void);
/**
* Show the DRAM size in a board-specific way
*
* This is used by boards to display DRAM information in their own way.
*
* @param size Size of DRAM (which should be displayed along with other info)
*/
void board_show_dram(phys_size_t size);
/**
* arch_fixup_fdt() - Write arch-specific information to fdt
*
* Defined in arch/$(ARCH)/lib/bootm-fdt.c
*
* @blob: FDT blob to write to
* @return 0 if ok, or -ve FDT_ERR_... on failure
*/
int arch_fixup_fdt(void *blob);
int reserve_mmu(void);
/* common/flash.c */
void flash_perror (int);
/* common/cmd_source.c */
int source (ulong addr, const char *fit_uname);
extern ulong load_addr; /* Default Load Address */
extern ulong save_addr; /* Default Save Address */
extern ulong save_size; /* Default Save Size */
/* common/cmd_net.c */
int do_tftpb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
/* common/cmd_fat.c */
int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
/* common/cmd_ext2.c */
int do_ext2load(cmd_tbl_t *, int, int, char * const []);
/* common/cmd_nvedit.c */
int env_init (void);
void env_relocate (void);
int envmatch (uchar *, int);
/**
* env_get() - Look up the value of an environment variable
*
* In U-Boot proper this can be called before relocation (which is when the
* environment is loaded from storage, i.e. GD_FLG_ENV_READY is 0). In that
* case this function calls env_get_f().
*
* @varname: Variable to look up
* @return value of variable, or NULL if not found
*/
char *env_get(const char *varname);
/**
* env_get_f() - Look up the value of an environment variable (early)
*
* This function is called from env_get() if the environment has not been
* loaded yet (GD_FLG_ENV_READY flag is 0). Some environment locations will
* support reading the value (slowly) and some will not.
*
* @varname: Variable to look up
* @return value of variable, or NULL if not found
*/
int env_get_f(const char *name, char *buf, unsigned len);
/**
* env_get_ulong() - Return an environment variable as an integer value
*
* Most U-Boot environment variables store hex values. For those which store
* (e.g.) base-10 integers, this function can be used to read the value.
*
* @name: Variable to look up
* @base: Base to use (e.g. 10 for base 10, 2 for binary)
* @default_val: Default value to return if no value is found
* @return the value found, or @default_val if none
*/
ulong env_get_ulong(const char *name, int base, ulong default_val);
/**
* env_get_hex() - Return an environment variable as a hex value
*
* Decode an environment as a hex number (it may or may not have a 0x
* prefix). If the environment variable cannot be found, or does not start
* with hex digits, the default value is returned.
*
* @varname: Variable to decode
* @default_val: Value to return on error
*/
ulong env_get_hex(const char *varname, ulong default_val);
/*
* Read an environment variable as a boolean
* Return -1 if variable does not exist (default to true)
*/
int env_get_yesno(const char *var);
/**
* env_set() - set an environment variable
*
* This sets or deletes the value of an environment variable. For setting the
* value the variable is created if it does not already exist.
*
* @varname: Variable to adjust
* @value: Value to set for the variable, or NULL or "" to delete the variable
* @return 0 if OK, 1 on error
*/
int env_set(const char *varname, const char *value);
/**
* env_set_ulong() - set an environment variable to an integer
*
* @varname: Variable to adjust
* @value: Value to set for the variable (will be converted to a string)
* @return 0 if OK, 1 on error
*/
int env_set_ulong(const char *varname, ulong value);
/**
* env_set_hex() - set an environment variable to a hex value
*
* @varname: Variable to adjust
* @value: Value to set for the variable (will be converted to a hex string)
* @return 0 if OK, 1 on error
*/
int env_set_hex(const char *varname, ulong value);
/**
* env_set_addr - Set an environment variable to an address in hex
*
* @varname: Environment variable to set
* @addr: Value to set it to
* @return 0 if ok, 1 on error
*/
static inline int env_set_addr(const char *varname, const void *addr)
{
return env_set_hex(varname, (ulong)addr);
}
#ifdef CONFIG_AUTO_COMPLETE
int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
#endif
int get_env_id (void);
void pci_init (void);
void pci_init_board(void);
#if defined(CONFIG_DTB_RESELECT)
int embedded_dtb_select(void);
#endif
int misc_init_f (void);
int misc_init_r (void);
/* common/exports.c */
void jumptable_init(void);
/* common/kallsysm.c */
const char *symbol_lookup(unsigned long addr, unsigned long *caddr);
/* common/memsize.c */
long get_ram_size (long *, long);
phys_size_t get_effective_memsize(void);
/* $(BOARD)/$(BOARD).c */
void reset_phy (void);
void fdc_hw_init (void);
/* $(BOARD)/eeprom.c */
#ifdef CONFIG_CMD_EEPROM
void eeprom_init (int bus);
int eeprom_read (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
int eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
#else
/*
* Some EEPROM code is depecated because it used the legacy I2C interface. Add
* some macros here so we don't have to touch every one of those uses
*/
#define eeprom_init(bus)
#define eeprom_read(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
#define eeprom_write(dev_addr, offset, buffer, cnt) ((void)-ENOSYS)
#endif
/*
* Set this up regardless of board
* type, to prevent errors.
*/
#if defined(CONFIG_SPI) || !defined(CONFIG_SYS_I2C_EEPROM_ADDR)
# define CONFIG_SYS_DEF_EEPROM_ADDR 0
#else
#if !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
# define CONFIG_SYS_DEF_EEPROM_ADDR CONFIG_SYS_I2C_EEPROM_ADDR
#endif
#endif /* CONFIG_SPI || !defined(CONFIG_SYS_I2C_EEPROM_ADDR) */
#if defined(CONFIG_SPI)
extern void spi_init_f (void);
extern void spi_init_r (void);
extern ssize_t spi_read (uchar *, int, uchar *, int);
extern ssize_t spi_write (uchar *, int, uchar *, int);
#endif
/* $(BOARD)/$(BOARD).c */
int board_early_init_f (void);
int board_fix_fdt (void *rw_fdt_blob); /* manipulate the U-Boot fdt before its relocation */
int board_late_init (void);
int board_postclk_init (void); /* after clocks/timebase, before env/serial */
int board_early_init_r (void);
void board_poweroff (void);
#if defined(CONFIG_SYS_DRAM_TEST)
int testdram(void);
#endif /* CONFIG_SYS_DRAM_TEST */
/* $(CPU)/start.S */
int icache_status (void);
void icache_enable (void);
void icache_disable(void);
int dcache_status (void);
void dcache_enable (void);
void dcache_disable(void);
void mmu_disable(void);
#if defined(CONFIG_ARM)
void relocate_code(ulong);
#else
void relocate_code(ulong, gd_t *, ulong) __attribute__ ((noreturn));
#endif
ulong get_endaddr (void);
void trap_init (ulong);
/* $(CPU)/cpu.c */
static inline int cpumask_next(int cpu, unsigned int mask)
{
for (cpu++; !((1 << cpu) & mask); cpu++)
;
return cpu;
}
#define for_each_cpu(iter, cpu, num_cpus, mask) \
for (iter = 0, cpu = cpumask_next(-1, mask); \
iter < num_cpus; \
iter++, cpu = cpumask_next(cpu, mask)) \
int cpu_numcores (void);
int cpu_num_dspcores(void);
u32 cpu_mask (void);
u32 cpu_dsp_mask(void);
int is_core_valid (unsigned int);
/**
* arch_cpu_init() - basic cpu-dependent setup for an architecture
*
* This is called after early malloc is available. It should handle any
* CPU- or SoC- specific init needed to continue the init sequence. See
* board_f.c for where it is called. If this is not provided, a default
* version (which does nothing) will be used.
*/
int arch_cpu_init(void);
int checkcpu (void);
int checkicache (void);
int checkdcache (void);
void upmconfig (unsigned int, unsigned int *, unsigned int);
ulong get_tbclk (void);
void reset_misc (void);
void reset_cpu (ulong addr);
void ft_cpu_setup(void *blob, bd_t *bd);
void ft_pci_setup(void *blob, bd_t *bd);
void smp_set_core_boot_addr(unsigned long addr, int corenr);
void smp_kick_all_cpus(void);
/* $(CPU)/serial.c */
int serial_init (void);
void serial_setbrg (void);
void serial_putc (const char);
void serial_putc_raw(const char);
void serial_puts (const char *);
int serial_getc (void);
int serial_tstc (void);
/* $(CPU)/speed.c */
int get_clocks (void);
ulong get_bus_freq (ulong);
int get_serial_clock(void);
int cpu_init_r (void);
/* $(CPU)/interrupts.c */
int interrupt_init (void);
void timer_interrupt (struct pt_regs *);
void external_interrupt (struct pt_regs *);
void irq_install_handler(int, interrupt_handler_t *, void *);
void irq_free_handler (int);
void reset_timer (void);
/* Return value of monotonic microsecond timer */
unsigned long timer_get_us(void);
void enable_interrupts (void);
int disable_interrupts (void);
/* $(CPU)/.../commproc.c */
int dpram_init (void);
uint dpram_base(void);
uint dpram_base_align(uint align);
uint dpram_alloc(uint size);
uint dpram_alloc_align(uint size,uint align);
void bootcount_store (ulong);
ulong bootcount_load (void);
#define BOOTCOUNT_MAGIC 0xB001C041
/* $(CPU)/.../<eth> */
void mii_init (void);
/* $(CPU)/.../lcd.c */
ulong lcd_setmem (ulong);
/* $(CPU)/.../video.c */
ulong video_setmem (ulong);
/* arch/$(ARCH)/lib/cache.c */
void enable_caches(void);
void flush_cache (unsigned long, unsigned long);
void flush_dcache_all(void);
void flush_dcache_range(unsigned long start, unsigned long stop);
void invalidate_dcache_range(unsigned long start, unsigned long stop);
void invalidate_dcache_all(void);
void invalidate_icache_all(void);
enum {
/* Disable caches (else flush caches but leave them active) */
CBL_DISABLE_CACHES = 1 << 0,
CBL_SHOW_BOOTSTAGE_REPORT = 1 << 1,
CBL_ALL = 3,
};
/**
* Clean up ready for linux
*
* @param flags Flags to control what is done
*/
int cleanup_before_linux_select(int flags);
/* arch/$(ARCH)/lib/ticks.S */
uint64_t get_ticks(void);
void wait_ticks (unsigned long);
/* arch/$(ARCH)/lib/time.c */
ulong usec2ticks (unsigned long usec);
ulong ticks2usec (unsigned long ticks);
/* lib/gunzip.c */
int gzip_parse_header(const unsigned char *src, unsigned long len);
int gunzip(void *, int, unsigned char *, unsigned long *);
int zunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp,
int stoponerr, int offset);
/**
* gzwrite progress indicators: defined weak to allow board-specific
* overrides:
*
* gzwrite_progress_init called on startup
* gzwrite_progress called during decompress/write loop
* gzwrite_progress_finish called at end of loop to
* indicate success (retcode=0) or failure
*/
void gzwrite_progress_init(u64 expected_size);
void gzwrite_progress(int iteration,
u64 bytes_written,
u64 total_bytes);
void gzwrite_progress_finish(int retcode,
u64 totalwritten,
u64 totalsize,
u32 expected_crc,
u32 calculated_crc);
/**
* decompress and write gzipped image from memory to block device
*
* @param src compressed image address
* @param len compressed image length in bytes
* @param dev block device descriptor
* @param szwritebuf bytes per write (pad to erase size)
* @param startoffs offset in bytes of first write
* @param szexpected expected uncompressed length
* may be zero to use gzip trailer
* for files under 4GiB
*/
int gzwrite(unsigned char *src, int len,
struct blk_desc *dev,
unsigned long szwritebuf,
u64 startoffs,
u64 szexpected);
/* lib/lz4_wrapper.c */
int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn);
/* lib/qsort.c */
void qsort(void *base, size_t nmemb, size_t size,
int(*compar)(const void *, const void *));
int strcmp_compar(const void *, const void *);
/* lib/uuid.c */
#include <uuid.h>
/* lib/vsprintf.c */
#include <vsprintf.h>
/* lib/strmhz.c */
char * strmhz(char *buf, unsigned long hz);
/* lib/crc32.c */
#include <u-boot/crc.h>
/* lib/rand.c */
#define RAND_MAX -1U
void srand(unsigned int seed);
unsigned int rand(void);
unsigned int rand_r(unsigned int *seedp);
/*
* STDIO based functions (can always be used)
*/
/* serial stuff */
int serial_printf (const char *fmt, ...)
__attribute__ ((format (__printf__, 1, 2)));
/* lib/gzip.c */
int gzip(void *dst, unsigned long *lenp,
unsigned char *src, unsigned long srclen);
int zzip(void *dst, unsigned long *lenp, unsigned char *src,
unsigned long srclen, int stoponerr,
int (*func)(unsigned long, unsigned long));
/* lib/net_utils.c */
#include <net.h>
static inline struct in_addr env_get_ip(char *var)
{
return string_to_ip(env_get(var));
}
int pcmcia_init (void);
#ifdef CONFIG_LED_STATUS
# include <status_led.h>
#endif
#include <bootstage.h>
#ifdef CONFIG_SHOW_ACTIVITY
void show_activity(int arg);
#endif
/* Multicore arch functions */
#ifdef CONFIG_MP
int cpu_status(int nr);
int cpu_reset(int nr);
int cpu_disable(int nr);
int cpu_release(int nr, int argc, char * const argv[]);
#endif
#else /* __ASSEMBLY__ */
/* Drop a C type modifier (like in 3UL) for constants used in assembly. */
#define _AC(X, Y) X
#endif /* __ASSEMBLY__ */
/* Put only stuff here that the assembler can digest */
/* Declare an unsigned long constant digestable both by C and an assembler. */
#define UL(x) _AC(x, UL)
#ifdef CONFIG_POST
#define CONFIG_HAS_POST
#ifndef CONFIG_POST_ALT_LIST
#define CONFIG_POST_STD_LIST
#endif
#endif
#ifdef CONFIG_INIT_CRITICAL
#error CONFIG_INIT_CRITICAL is deprecated!
#error Read section CONFIG_SKIP_LOWLEVEL_INIT in README.
#endif
#define ROUND(a,b) (((a) + (b) - 1) & ~((b) - 1))
/*
* check_member() - Check the offset of a structure member
*
* @structure: Name of structure (e.g. global_data)
* @member: Name of member (e.g. baudrate)
* @offset: Expected offset in bytes
*/
#define check_member(structure, member, offset) _Static_assert( \
offsetof(struct structure, member) == offset, \
"`struct " #structure "` offset for `" #member "` is not " #offset)
/* Avoid using CONFIG_EFI_STUB directly as we may boot from other loaders */
#ifdef CONFIG_EFI_STUB
#define ll_boot_init() false
#else
#define ll_boot_init() true
#endif
/* Pull in stuff for the build system */
#ifdef DO_DEPS_ONLY
# include <environment.h>
#endif
#endif /* __COMMON_H_ */