Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

#ifndef _CHAIN_COMMANDS_H_

#define _CHAIN_COMMANDS_H_

#include <stdint.h>

// These two are used by both debug modules

extern int current_chain;

extern int desired_chain;

// These are needed by the advanced debug module

extern int global_DR_prefix_bits;

extern int global_DR_postfix_bits;

extern unsigned char global_xilinx_bscan;

// Discover devices on JTAG chain

int jtag_enumerate_chain(uint32_t **id_array, int *num_devices);

int jtag_get_idcode(uint32_t cmd, uint32_t *idcode);

// Functions to set configuration for the JTAG chain

void config_set_IR_size(int size);

void config_set_IR_prefix_bits(int bits);

void config_set_IR_postfix_bits(int bits);

void config_set_DR_prefix_bits(int bits);

void config_set_DR_postfix_bits(int bits);

void config_set_debug_cmd(unsigned int cmd);

void config_set_alt_vjtag(unsigned char enable);

void config_set_vjtag_cmd_vir(unsigned int cmd);

void config_set_vjtag_cmd_vdr(unsigned int cmd);

void config_set_xilinx_bscan(unsigned char enable);

// Operations on the JTAG TAP

int tap_reset(void);

int tap_enable_debug_module(void);

int tap_set_ir(int ir);

int tap_set_shift_dr(void);

int tap_exit_to_idle(void);

// Functions to Send/receive bitstreams via JTAG

// These functions are aware of other devices in the chain, and may adjust for them.

int jtag_write_bit(uint8_t packet);

int jtag_read_write_bit(uint8_t packet, uint8_t *in_bit);

int jtag_write_stream(uint32_t *out_data, int length_bits, unsigned char set_TMS);

int jtag_read_write_stream(uint32_t *out_data, uint32_t *in_data, int length_bits,

                           unsigned char adjust, unsigned char set_TMS);

int retry_do(void);

void retry_ok(void);

#endif