bioscall.c

嵌入式linux下ARM4210板的bootloader

#include "types.h"
#include "bioscall.h"


int bios_call(unsigned long id, unsigned long arg)
{
	BIOSCALL *bios_call_ptr = (BIOSCALL *)BIOS_API_ADDR;
	return bios_call_ptr(id, arg);
}

int bios_reboot()
{
	return bios_call(BIOSCALL_REBOOT, 0);
}

unsigned short bios_vendor_id(void)
{
	unsigned short vendor_id;

	bios_call(BIOSCALL_GET_VENDORID, (unsigned long)&vendor_id);
	return vendor_id;
}

unsigned short bios_device_id(void)
{
	unsigned short device_id;

	bios_call(BIOSCALL_GET_DEVICEID, (unsigned long)&device_id);
	return device_id;
}

unsigned short bios_sub_vendor_id(void)
{
	unsigned short sub_vendor_id;

	bios_call(BIOSCALL_GET_SUBVENDORID, (unsigned long)&sub_vendor_id);
	return sub_vendor_id;
}

unsigned short bios_sub_device_id(void)
{
	unsigned short sub_device_id;

	bios_call(BIOSCALL_GET_SUBDEVICEID, (unsigned long)&sub_device_id);
	return sub_device_id;
}

unsigned long bios_rev(void)
{
	unsigned long rev;

	bios_call(BIOSCALL_GET_REV, (unsigned long)&rev);
	return rev;
}

unsigned long bios_sys_clock(void)
{
	unsigned long sys_clock;

	bios_call(BIOSCALL_GET_SYSCLOCK, (unsigned long)&sys_clock);
	return sys_clock;
}

unsigned long bios_ext_clock(void)
{
	unsigned long ext_clock;

	bios_call(BIOSCALL_GET_EXTCLOCK, (unsigned long)&ext_clock);
	return ext_clock;
}

unsigned long bios_dram_base(void)
{
	unsigned long dram_base;

	bios_call(BIOSCALL_GET_DRAMBASE, (unsigned long)&dram_base);
	return dram_base;
}

unsigned long bios_dram_size(void)
{
	unsigned long dram_size;

	bios_call(BIOSCALL_GET_DRAMSIZE, (unsigned long)&dram_size);
	return dram_size;
}

unsigned long bios_rom_base(void)
{
	unsigned long rom_base;

	bios_call(BIOSCALL_GET_ROMBASE, (unsigned long)&rom_base);
	return rom_base;
}

unsigned long bios_rom_size(void)
{
	unsigned long rom_size;

	bios_call(BIOSCALL_GET_ROMSIZE, (unsigned long)&rom_size);
	return rom_size;
}

unsigned long bios_bios_offset(void)
{
	unsigned long bios_offset;

	bios_call(BIOSCALL_GET_BIOSOFFSET, (unsigned long)&bios_offset);
	return bios_offset;
}

unsigned long bios_bios_size(void)
{
	unsigned long bios_size;

	bios_call(BIOSCALL_GET_BIOSSIZE, (unsigned long)&bios_size);
	return bios_size;
}

unsigned long bios_system_table_offset(void)
{
	unsigned long system_table_offset;

	bios_call(BIOSCALL_GET_SYSTEMTABLEOFFSET, (unsigned long)&system_table_offset);
	return system_table_offset;
}

unsigned long bios_system_table_size(void)
{
	unsigned long system_table_size;

	bios_call(BIOSCALL_GET_SYSTEMTABLESIZE, (unsigned long)&system_table_size);
	return system_table_size;
}

unsigned long bios_partition_table_offset(void)
{
	unsigned long partition_table_offset;

	bios_call(BIOSCALL_GET_PARTITIONTABLEOFFSET, (unsigned long)&partition_table_offset);
	return partition_table_offset;
}

unsigned long bios_partition_table_size(void)
{
	unsigned long partition_table_size;

	bios_call(BIOSCALL_GET_PARTITIONTABLESIZE, (unsigned long)&partition_table_size);
	return partition_table_size;
}

int bios_flash_erase(unsigned long adr, unsigned long size)
{
	struct flash_erase_struct flash_erase;

	flash_erase.addr = adr;
	flash_erase.size = size;
	return bios_call(BIOSCALL_FLASH_ERASE, (unsigned long)&flash_erase);
}

int bios_flash_read(unsigned long from,
	unsigned long len, unsigned long *retlen, unsigned char *buf)
{
	struct flash_read_struct flash_read;
	int ret;

	flash_read.from = from;
	flash_read.len = len;
	flash_read.buf = buf;
	ret = bios_call(BIOSCALL_FLASH_READ, (unsigned long)&flash_read);
	*retlen = flash_read.retlen;

	return ret;
}

int bios_flash_write(unsigned long to,
	unsigned long len, unsigned long *retlen, unsigned char *buf)
{
	struct flash_write_struct flash_write;
	int ret;

	flash_write.to = to;
	flash_write.len = len;
	flash_write.buf = buf;
	ret = bios_call(BIOSCALL_FLASH_WRITE, (unsigned long)&flash_write);
	*retlen = flash_write.retlen;

	return ret;
}

int bios_uart0_cfg(struct uart_cfg *cfg)
{
	return bios_call(BIOSCALL_GET_UART0CFG, (unsigned long)cfg);
}

int bios_uart1_cfg(struct uart_cfg *cfg)
{
	return bios_call(BIOSCALL_GET_UART1CFG, (unsigned long)cfg);
}

int bios_eth_cfg(struct eth_cfg *cfg)
{
	return bios_call(BIOSCALL_GET_ETHCFG, (unsigned long)cfg);
}

int bios_ne2000_cfg(struct ne2000_cfg *cfg)
{
	return bios_call(BIOSCALL_GET_NE2000CFG, (unsigned long)cfg);
}

unsigned long bios_startup_mode(void)
{
	unsigned long startup_mode;

	bios_call(BIOSCALL_GET_STARTUPMODE, (unsigned long)&startup_mode);
	return startup_mode;
}

unsigned long bios_tftp_ipaddr(void)
{
	unsigned long tftp_ipaddr;

	bios_call(BIOSCALL_GET_TFTPIPADDR, (unsigned long)&tftp_ipaddr);
	return tftp_ipaddr;
}

int bios_system_table(struct system_table_struct *system_table)
{
	unsigned long system_table_offset, system_table_size, l;

	system_table_offset = bios_system_table_offset();
	system_table_size = bios_system_table_size();

	return bios_flash_read(system_table_offset, system_table_size,
		&l, (unsigned char *)system_table);
}

int bios_partition_table(struct partition_table_struct *partition_table)
{
	unsigned long partition_table_offset, partition_table_size, l;

	partition_table_offset = bios_partition_table_offset();
	partition_table_size = bios_partition_table_size();

	return bios_flash_read(partition_table_offset, partition_table_size,
		&l, (unsigned char *)partition_table);
}