diff options
Diffstat (limited to 'lib/ccdbg-command.c')
| -rw-r--r-- | lib/ccdbg-command.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/lib/ccdbg-command.c b/lib/ccdbg-command.c deleted file mode 100644 index a1002879..00000000 --- a/lib/ccdbg-command.c +++ /dev/null @@ -1,176 +0,0 @@ -/* - * 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" - -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) -{ - uint16_t pc1, pc2; - - pc1 = ccdbg_cmd_write_read16(dbg, CC_GET_PC, NULL, 0); - pc2 = ccdbg_cmd_write_read16(dbg, CC_GET_PC, NULL, 0); - if (pc1 != pc2) - fprintf (stderr, "Invalid pc %04x != %04x\n", - pc1, pc2); - return pc2; -} - -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); -} - -void -ccdbg_debug_instr_discard(struct ccdbg *dbg, uint8_t *instr, int nbytes) -{ - static uint8_t discard; - ccdbg_cmd_write_queue8(dbg, CC_DEBUG_INSTR(nbytes), - instr, nbytes, &discard); -} - -void -ccdbg_debug_instr_queue(struct ccdbg *dbg, uint8_t *instr, int nbytes, - uint8_t *reply) -{ - return ccdbg_cmd_write_queue8(dbg, CC_DEBUG_INSTR(nbytes), - instr, nbytes, reply); -} - -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]); - ccdbg_debug_instr_queue(dbg, inst+1, len, &status); - for (; i < 3; i++) - ccdbg_debug(CC_DEBUG_INSTRUCTIONS, " "); - ccdbg_debug(CC_DEBUG_INSTRUCTIONS, " -> %02x\n", status); - inst += len + 1; - } - ccdbg_sync(dbg); - 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); - ccdbg_debug(CC_DEBUG_EXECUTE, "pc starts at 0x%04x\n", pc); - status = ccdbg_resume(dbg); - ccdbg_debug(CC_DEBUG_EXECUTE, "resume status: 0x%02x\n", status); - return 0; -} |