+++ /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"
-
-/*
- * Read and write arbitrary memory through the debug port
- */
-
-static uint8_t memory_init[] = {
- 3, MOV_DPTR_data16, 0, 0,
-#define HIGH_START 2
-#define LOW_START 3
- 0,
-};
-
-
-static uint8_t write8[] = {
- 2, MOV_A_data, 0,
-#define DATA_BYTE 2
- 1, MOVX_atDPTR_A,
- 1, INC_DPTR,
- 0
-};
-
-static uint8_t read8[] = {
- 1, MOVX_A_atDPTR,
- 1, INC_DPTR,
- 0,
-};
-
-uint8_t
-ccdbg_write_memory(struct ccdbg *dbg, uint16_t addr, uint8_t *bytes, int nbytes)
-{
- int i, nl = 0;
- struct ccstate state;
-
- if (dbg->usb)
- return cc_usb_write_memory(dbg->usb, addr, bytes, nbytes);
- ccdbg_state_save(dbg, &state, CC_STATE_ACC | CC_STATE_PSW | CC_STATE_DP);
- memory_init[HIGH_START] = addr >> 8;
- memory_init[LOW_START] = addr;
- (void) ccdbg_execute(dbg, memory_init);
- for (i = 0; i < nbytes; i++) {
- write8[DATA_BYTE] = *bytes++;
- ccdbg_execute(dbg, write8);
- if ((i & 0xf) == 0xf) {
- ccdbg_debug(CC_DEBUG_MEMORY, ".");
- ccdbg_flush(CC_DEBUG_MEMORY);
- nl = 1;
- }
- if ((i & 0xff) == 0xff) {
- ccdbg_debug(CC_DEBUG_MEMORY, "\n");
- nl = 0;
- }
- }
- ccdbg_state_restore(dbg, &state);
- if (nl)
- ccdbg_debug(CC_DEBUG_MEMORY, "\n");
- return 0;
-}
-
-uint8_t
-ccdbg_read_memory(struct ccdbg *dbg, uint16_t addr, uint8_t *bytes, int nbytes)
-{
- int i, nl = 0;
- struct ccstate state;
-
- if (ccdbg_rom_contains(dbg, addr, nbytes)) {
- ccdbg_rom_replace_xmem(dbg, addr, bytes, nbytes);
- return 0;
- }
- if (dbg->usb)
- return cc_usb_read_memory(dbg->usb, addr, bytes, nbytes);
- ccdbg_state_save(dbg, &state, CC_STATE_ACC | CC_STATE_PSW | CC_STATE_DP);
- memory_init[HIGH_START] = addr >> 8;
- memory_init[LOW_START] = addr;
- (void) ccdbg_execute(dbg, memory_init);
- for (i = 0; i < nbytes; i++) {
- *bytes++ = ccdbg_execute(dbg, read8);
- if ((i & 0xf) == 0xf) {
- ccdbg_debug(CC_DEBUG_MEMORY, ".");
- ccdbg_flush(CC_DEBUG_MEMORY);
- nl = 1;
- }
- if ((i & 0xff) == 0xff) {
- ccdbg_debug(CC_DEBUG_MEMORY, "\n");
- nl = 0;
- }
- }
- ccdbg_state_replace_xmem(dbg, &state, addr, bytes, nbytes);
- ccdbg_state_restore(dbg, &state);
- if (nl)
- ccdbg_debug(CC_DEBUG_MEMORY, "\n");
- return 0;
-}
-
-uint8_t
-ccdbg_write_uint8(struct ccdbg *dbg, uint16_t addr, uint8_t byte)
-{
- return ccdbg_write_memory(dbg, addr, &byte, 1);
-}
-
-uint8_t
-ccdbg_write_hex_image(struct ccdbg *dbg, struct hex_image *image, uint16_t offset)
-{
- ccdbg_write_memory(dbg, image->address + offset, image->data, image->length);
- return 0;
-}
-
-struct hex_image *
-ccdbg_read_hex_image(struct ccdbg *dbg, uint16_t address, uint16_t length)
-{
- struct hex_image *image;
-
- image = calloc(sizeof(struct hex_image) + length, 1);
- image->address = address;
- image->length = length;
- memset(image->data, 0xff, length);
- ccdbg_read_memory(dbg, address, image->data, length);
- return image;
-}
-
-static uint8_t sfr_read[] = {
- 2, MOV_A_direct, 0,
-#define SFR_READ_ADDR 2
- 0,
-};
-
-static uint8_t sfr_write[] = {
- 3, MOV_direct_data, 0, 0,
-#define SFR_WRITE_ADDR 2
-#define SFR_WRITE_DATA 3
- 0,
-};
-
-uint8_t
-ccdbg_read_sfr(struct ccdbg *dbg, uint8_t addr, uint8_t *bytes, int nbytes)
-{
- int i;
- struct ccstate state;
-
- ccdbg_state_save(dbg, &state, CC_STATE_ACC);
- for (i = 0; i < nbytes; i++) {
- sfr_read[SFR_READ_ADDR] = addr + i;
- *bytes++ = ccdbg_execute(dbg, sfr_read);
- }
- ccdbg_state_replace_sfr(dbg, &state, addr, bytes, nbytes);
- ccdbg_state_restore(dbg, &state);
- return 0;
-}
-
-uint8_t
-ccdbg_write_sfr(struct ccdbg *dbg, uint8_t addr, uint8_t *bytes, int nbytes)
-{
- int i;
-
- for (i = 0; i < nbytes; i++) {
- sfr_write[SFR_WRITE_ADDR] = addr + i;
- sfr_write[SFR_WRITE_DATA] = *bytes++;
- ccdbg_execute(dbg, sfr_write);
- }
- return 0;
-}