+++ /dev/null
-/*
- * Copyright © 2008 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#include "ccdbg.h"
-
-void
-ccdbg_debug_mode(struct ccdbg *dbg)
-{
- /* force two rising clocks while holding RESET_N low */
- ccdbg_debug(CC_DEBUG_COMMAND, "#\n");
- ccdbg_debug(CC_DEBUG_COMMAND, "# Debug mode\n");
- ccdbg_debug(CC_DEBUG_COMMAND, "#\n");
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA|CC_RESET_N);
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_DATA );
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA );
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_DATA );
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA );
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_DATA|CC_RESET_N);
-}
-
-void
-ccdbg_reset(struct ccdbg *dbg)
-{
- ccdbg_debug(CC_DEBUG_COMMAND, "#\n");
- ccdbg_debug(CC_DEBUG_COMMAND, "# Reset\n");
- ccdbg_debug(CC_DEBUG_COMMAND, "#\n");
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA|CC_RESET_N);
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA );
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA );
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA );
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA );
- ccdbg_send(dbg, CC_CLOCK|CC_DATA|CC_RESET_N, CC_CLOCK|CC_DATA|CC_RESET_N);
-}
-
-uint8_t
-ccdbg_chip_erase(struct ccdbg *dbg)
-{
- return ccdbg_cmd_write_read8(dbg, CC_CHIP_ERASE, NULL, 0);
-}
-
-uint8_t
-ccdbg_wr_config(struct ccdbg *dbg, uint8_t config)
-{
- return ccdbg_cmd_write_read8(dbg, CC_WR_CONFIG, &config, 1);
-}
-
-uint8_t
-ccdbg_rd_config(struct ccdbg *dbg)
-{
- return ccdbg_cmd_write_read8(dbg, CC_RD_CONFIG, NULL, 0);
-}
-
-uint16_t
-ccdbg_get_pc(struct ccdbg *dbg)
-{
- return ccdbg_cmd_write_read16(dbg, CC_GET_PC, NULL, 0);
-}
-
-uint8_t
-ccdbg_read_status(struct ccdbg *dbg)
-{
- return ccdbg_cmd_write_read8(dbg, CC_READ_STATUS, NULL, 0);
-}
-
-uint8_t
-ccdbg_set_hw_brkpnt(struct ccdbg *dbg, uint8_t number, uint8_t enable, uint16_t addr)
-{
- uint8_t data[3];
-
- data[0] = (number << 3) | (enable << 2);
- data[1] = (addr >> 8);
- data[2] = addr;
- return ccdbg_cmd_write_read8(dbg, CC_SET_HW_BRKPNT, data, 3);
-}
-
-uint8_t
-ccdbg_halt(struct ccdbg *dbg)
-{
- return ccdbg_cmd_write_read8(dbg, CC_HALT, NULL, 0);
-}
-
-uint8_t
-ccdbg_resume(struct ccdbg *dbg)
-{
- return ccdbg_cmd_write_read8(dbg, CC_RESUME, NULL, 0);
-}
-
-uint8_t
-ccdbg_debug_instr(struct ccdbg *dbg, uint8_t *instr, int nbytes)
-{
- return ccdbg_cmd_write_read8(dbg, CC_DEBUG_INSTR(nbytes), instr, nbytes);
-}
-
-uint8_t
-ccdbg_step_instr(struct ccdbg *dbg)
-{
- return ccdbg_cmd_write_read8(dbg, CC_STEP_INSTR, NULL, 0);
-}
-
-uint8_t
-ccdbg_step_replace(struct ccdbg *dbg, uint8_t *instr, int nbytes)
-{
- return ccdbg_cmd_write_read8(dbg, CC_STEP_REPLACE(nbytes), instr, nbytes);
-}
-
-uint16_t
-ccdbg_get_chip_id(struct ccdbg *dbg)
-{
- return ccdbg_cmd_write_read16(dbg, CC_GET_CHIP_ID, NULL, 0);
-}
-
-/*
- * Execute a sequence of instructions
- */
-uint8_t
-ccdbg_execute(struct ccdbg *dbg, uint8_t *inst)
-{
- uint8_t status = 0;
- while(inst[0] != 0) {
- uint8_t len = inst[0];
- int i;
- ccdbg_debug(CC_DEBUG_INSTRUCTIONS, "\t%02x", inst[1]);
- for (i = 0; i < len - 1; i++)
- ccdbg_debug(CC_DEBUG_INSTRUCTIONS, " %02x", inst[i+2]);
- status = ccdbg_debug_instr(dbg, inst+1, len);
- for (; i < 3; i++)
- ccdbg_debug(CC_DEBUG_INSTRUCTIONS, " ");
- ccdbg_debug(CC_DEBUG_INSTRUCTIONS, " -> %02x\n", status);
- inst += len + 1;
- }
- return status;
-}
-
-static uint8_t jump_mem[] = {
- 3, LJMP, 0xf0, 0x00,
-#define PC_HIGH 2
-#define PC_LOW 3
- 0
-};
-
-uint8_t
-ccdbg_set_pc(struct ccdbg *dbg, uint16_t pc)
-{
- jump_mem[PC_HIGH] = pc >> 8;
- jump_mem[PC_LOW] = pc & 0xff;
- return ccdbg_execute(dbg, jump_mem);
-}
-
-uint8_t
-ccdbg_execute_hex_image(struct ccdbg *dbg, struct hex_image *image)
-{
- uint16_t pc;
- uint8_t status;
-
- if (image->address < 0xf000) {
- fprintf(stderr, "Cannot execute program starting at 0x%04x\n", image->address);
- return -1;
- }
- ccdbg_write_hex_image(dbg, image, 0);
- ccdbg_set_pc(dbg, image->address);
- pc = ccdbg_get_pc(dbg);
- printf ("pc starts at 0x%04x\n", pc);
- status = ccdbg_resume(dbg);
- printf ("resume status: 0x%02x\n", status);
- return 0;
-}
-
projects / fw / altos / blobdiff