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- /***************************************************************************
- * Copyright (C) 2009 by Simon Qian *
- * SimonQian@SimonQian.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. *
- ***************************************************************************/
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #include "replacements.h"
-
- #include "avrf.h"
- #include "avrt.h"
- #include "flash.h"
- #include "target.h"
- #include "log.h"
- #include "algorithm.h"
- #include "binarybuffer.h"
-
- #include <stdlib.h>
- #include <string.h>
-
- /* AVR_JTAG_Instructions */
- #define AVR_JTAG_INS_LEN 4
- // Public Instructions:
- #define AVR_JTAG_INS_EXTEST 0x00
- #define AVR_JTAG_INS_IDCODE 0x01
- #define AVR_JTAG_INS_SAMPLE_PRELOAD 0x02
- #define AVR_JTAG_INS_BYPASS 0x0F
- // AVR Specified Public Instructions:
- #define AVR_JTAG_INS_AVR_RESET 0x0C
- #define AVR_JTAG_INS_PROG_ENABLE 0x04
- #define AVR_JTAG_INS_PROG_COMMANDS 0x05
- #define AVR_JTAG_INS_PROG_PAGELOAD 0x06
- #define AVR_JTAG_INS_PROG_PAGEREAD 0x07
-
- // Data Registers:
- #define AVR_JTAG_REG_Bypass_Len 1
- #define AVR_JTAG_REG_DeviceID_Len 32
-
- #define AVR_JTAG_REG_Reset_Len 1
- #define AVR_JTAG_REG_JTAGID_Len 32
- #define AVR_JTAG_REG_ProgrammingEnable_Len 16
- #define AVR_JTAG_REG_ProgrammingCommand_Len 15
- #define AVR_JTAG_REG_FlashDataByte_Len 16
-
- avrf_type_t avft_chips_info[] =
- {
- // name, chip_id, flash_page_size, flash_page_num, eeprom_page_size, eeprom_page_num
- {"atmega128", 0x9702, 256, 512, 8, 512},
- };
-
- static int avrf_register_commands(struct command_context_s *cmd_ctx);
- static int avrf_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
- static int avrf_erase(struct flash_bank_s *bank, int first, int last);
- static int avrf_protect(struct flash_bank_s *bank, int set, int first, int last);
- static int avrf_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
- static int avrf_probe(struct flash_bank_s *bank);
- static int avrf_auto_probe(struct flash_bank_s *bank);
- //static int avrf_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
- static int avrf_protect_check(struct flash_bank_s *bank);
- static int avrf_info(struct flash_bank_s *bank, char *buf, int buf_size);
-
- static int avrf_handle_mass_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
- extern int avr_jtag_sendinstr(jtag_tap_t *tap, u8 *ir_in, u8 ir_out);
- extern int avr_jtag_senddat(jtag_tap_t *tap, u32 *dr_in, u32 dr_out, int len);
-
- extern int mcu_write_ir(jtag_tap_t *tap, u8 *ir_in, u8 *ir_out, int ir_len, int rti);
- extern int mcu_write_dr(jtag_tap_t *tap, u8 *ir_in, u8 *ir_out, int dr_len, int rti);
- extern int mcu_write_ir_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int ir_len, int rti);
- extern int mcu_write_dr_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int dr_len, int rti);
- extern int mcu_write_ir_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int ir_len, int rti);
- extern int mcu_write_dr_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int dr_len, int rti);
- extern int mcu_write_ir_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int ir_len, int rti);
- extern int mcu_write_dr_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int dr_len, int rti);
- extern int mcu_execute_queue(void);
-
- flash_driver_t avr_flash =
- {
- .name = "avr",
- .register_commands = avrf_register_commands,
- .flash_bank_command = avrf_flash_bank_command,
- .erase = avrf_erase,
- .protect = avrf_protect,
- .write = avrf_write,
- .probe = avrf_probe,
- .auto_probe = avrf_auto_probe,
- .erase_check = default_flash_mem_blank_check,
- .protect_check = avrf_protect_check,
- .info = avrf_info
- };
-
- /* avr program functions */
- static int avr_jtag_reset(avr_common_t *avr, u32 reset)
- {
- avr_jtag_sendinstr(avr->jtag_info.tap, NULL, AVR_JTAG_INS_AVR_RESET);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, reset ,AVR_JTAG_REG_Reset_Len);
-
- return ERROR_OK;
- }
-
- static int avr_jtag_read_jtagid(avr_common_t *avr, u32 *id)
- {
- avr_jtag_sendinstr(avr->jtag_info.tap, NULL, AVR_JTAG_INS_IDCODE);
- avr_jtag_senddat(avr->jtag_info.tap, id, 0, AVR_JTAG_REG_JTAGID_Len);
-
- return ERROR_OK;
- }
-
- static int avr_jtagprg_enterprogmode(avr_common_t *avr)
- {
- avr_jtag_reset(avr, 1);
-
- avr_jtag_sendinstr(avr->jtag_info.tap, NULL, AVR_JTAG_INS_PROG_ENABLE);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0xA370, AVR_JTAG_REG_ProgrammingEnable_Len);
-
- return ERROR_OK;
- }
-
- static int avr_jtagprg_leaveprogmode(avr_common_t *avr)
- {
- avr_jtag_sendinstr(avr->jtag_info.tap, NULL, AVR_JTAG_INS_PROG_COMMANDS);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x2300, AVR_JTAG_REG_ProgrammingCommand_Len);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x3300, AVR_JTAG_REG_ProgrammingCommand_Len);
-
- avr_jtag_sendinstr(avr->jtag_info.tap, NULL, AVR_JTAG_INS_PROG_ENABLE);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0, AVR_JTAG_REG_ProgrammingEnable_Len);
-
- avr_jtag_reset(avr, 0);
-
- return ERROR_OK;
- }
-
- static int avr_jtagprg_chiperase(avr_common_t *avr)
- {
- u32 poll_value;
-
- avr_jtag_sendinstr(avr->jtag_info.tap, NULL, AVR_JTAG_INS_PROG_COMMANDS);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x2380, AVR_JTAG_REG_ProgrammingCommand_Len);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x3180, AVR_JTAG_REG_ProgrammingCommand_Len);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x3380, AVR_JTAG_REG_ProgrammingCommand_Len);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x3380, AVR_JTAG_REG_ProgrammingCommand_Len);
-
- do{
- poll_value = 0;
- avr_jtag_senddat(avr->jtag_info.tap, &poll_value, 0x3380, AVR_JTAG_REG_ProgrammingCommand_Len);
- if (ERROR_OK != mcu_execute_queue())
- {
- return ERROR_FAIL;
- }
- LOG_DEBUG("poll_value = 0x%04X", poll_value);
- }while(!(poll_value & 0x0200));
-
- return ERROR_OK;
- }
-
- static int avr_jtagprg_writeflashpage(avr_common_t *avr, u8 *page_buf, u32 buf_size, u32 addr, u32 page_size)
- {
- u32 i, poll_value;
-
- avr_jtag_sendinstr(avr->jtag_info.tap, NULL, AVR_JTAG_INS_PROG_COMMANDS);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x2310, AVR_JTAG_REG_ProgrammingCommand_Len);
-
- // load addr high byte
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x0700 | ((addr >> 9) & 0xFF), AVR_JTAG_REG_ProgrammingCommand_Len);
-
- // load addr low byte
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x0300 | ((addr >> 1) & 0xFF), AVR_JTAG_REG_ProgrammingCommand_Len);
-
- avr_jtag_sendinstr(avr->jtag_info.tap, NULL, AVR_JTAG_INS_PROG_PAGELOAD);
-
- for (i = 0; i < page_size; i++)
- {
- if (i < buf_size)
- {
- avr_jtag_senddat(avr->jtag_info.tap, NULL, page_buf[i], 8);
- }
- else
- {
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0xFF, 8);
- }
- }
-
- avr_jtag_sendinstr(avr->jtag_info.tap, NULL, AVR_JTAG_INS_PROG_COMMANDS);
-
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x3700, AVR_JTAG_REG_ProgrammingCommand_Len);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x3500, AVR_JTAG_REG_ProgrammingCommand_Len);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x3700, AVR_JTAG_REG_ProgrammingCommand_Len);
- avr_jtag_senddat(avr->jtag_info.tap, NULL, 0x3700, AVR_JTAG_REG_ProgrammingCommand_Len);
-
- do{
- poll_value = 0;
- avr_jtag_senddat(avr->jtag_info.tap, &poll_value, 0x3700, AVR_JTAG_REG_ProgrammingCommand_Len);
- if (ERROR_OK != mcu_execute_queue())
- {
- return ERROR_FAIL;
- }
- LOG_DEBUG("poll_value = 0x%04X", poll_value);
- }while(!(poll_value & 0x0200));
-
- return ERROR_OK;
- }
-
- /* interface command */
- static int avrf_register_commands(struct command_context_s *cmd_ctx)
- {
- command_t *avr_cmd = register_command(cmd_ctx, NULL, "avr", NULL, COMMAND_ANY, "avr flash specific commands");
-
- register_command(cmd_ctx, avr_cmd, "mass_erase", avrf_handle_mass_erase_command, COMMAND_EXEC,
- "mass erase device");
-
- return ERROR_OK;
- }
-
- static int avrf_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
- {
- avrf_flash_bank_t *avrf_info;
-
- if (argc < 6)
- {
- LOG_WARNING("incomplete flash_bank avr configuration");
- return ERROR_FLASH_BANK_INVALID;
- }
-
- avrf_info = malloc(sizeof(avrf_flash_bank_t));
- bank->driver_priv = avrf_info;
-
- avrf_info->probed = 0;
-
- return ERROR_OK;
- }
-
- static int avrf_erase(struct flash_bank_s *bank, int first, int last)
- {
- LOG_INFO(__FUNCTION__);
- return ERROR_OK;
- }
-
- static int avrf_protect(struct flash_bank_s *bank, int set, int first, int last)
- {
- LOG_INFO(__FUNCTION__);
- return ERROR_OK;
- }
-
- static int avrf_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
- {
- target_t *target = bank->target;
- avr_common_t *avr = target->arch_info;
- u32 cur_size, cur_buffer_size, page_size;
-
- if (bank->target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
- page_size = bank->sectors[0].size;
- if ((offset % page_size) != 0)
- {
- LOG_WARNING("offset 0x%x breaks required %d-byte alignment", offset, page_size);
- return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
- }
-
- LOG_DEBUG("offset is 0x%08X", offset);
- LOG_DEBUG("count is %d", count);
-
- if (ERROR_OK != avr_jtagprg_enterprogmode(avr))
- {
- return ERROR_FAIL;
- }
-
- cur_size = 0;
- while(count > 0)
- {
- if (count > page_size)
- {
- cur_buffer_size = page_size;
- }
- else
- {
- cur_buffer_size = count;
- }
- avr_jtagprg_writeflashpage(avr, buffer + cur_size, cur_buffer_size, offset + cur_size, page_size);
- count -= cur_buffer_size;
- cur_size += cur_buffer_size;
-
- keep_alive();
- }
-
- return avr_jtagprg_leaveprogmode(avr);
- }
-
- #define EXTRACT_MFG(X) (((X) & 0xffe) >> 1)
- #define EXTRACT_PART(X) (((X) & 0xffff000) >> 12)
- #define EXTRACT_VER(X) (((X) & 0xf0000000) >> 28)
- static int avrf_probe(struct flash_bank_s *bank)
- {
- target_t *target = bank->target;
- avrf_flash_bank_t *avrf_info = bank->driver_priv;
- avr_common_t *avr = target->arch_info;
- avrf_type_t *avr_info = NULL;
- int i;
- u32 device_id;
-
- if (bank->target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
- avrf_info->probed = 0;
-
- avr_jtag_read_jtagid(avr, &device_id);
- if (ERROR_OK != mcu_execute_queue())
- {
- return ERROR_FAIL;
- }
-
- LOG_INFO( "device id = 0x%08x", device_id );
- if (EXTRACT_MFG(device_id) != 0x1F)
- {
- LOG_ERROR("0x%X is invalid Manufacturer for avr, 0x%X is expected", EXTRACT_MFG(device_id), 0x1F);
- }
-
- for (i = 0; i < (int)(sizeof(avft_chips_info) / sizeof(avft_chips_info[0])); i++)
- {
- if (avft_chips_info[i].chip_id == EXTRACT_PART(device_id))
- {
- avr_info = &avft_chips_info[i];
- LOG_INFO("target device is %s", avr_info->name);
- break;
- }
- }
-
- if (avr_info != NULL)
- {
- // chip found
- bank->base = 0x00000000;
- bank->size = (avr_info->flash_page_size * avr_info->flash_page_num);
- bank->num_sectors = avr_info->flash_page_num;
- bank->sectors = malloc(sizeof(flash_sector_t) * avr_info->flash_page_num);
-
- for (i = 0; i < avr_info->flash_page_num; i++)
- {
- bank->sectors[i].offset = i * avr_info->flash_page_size;
- bank->sectors[i].size = avr_info->flash_page_size;
- bank->sectors[i].is_erased = -1;
- bank->sectors[i].is_protected = 1;
- }
-
- avrf_info->probed = 1;
- return ERROR_OK;
- }
- else
- {
- // chip not supported
- LOG_ERROR("0x%X is not support for avr", EXTRACT_PART(device_id));
-
- avrf_info->probed = 1;
- return ERROR_FAIL;
- }
- }
-
- static int avrf_auto_probe(struct flash_bank_s *bank)
- {
- avrf_flash_bank_t *avrf_info = bank->driver_priv;
- if (avrf_info->probed)
- return ERROR_OK;
- return avrf_probe(bank);
- }
-
- static int avrf_protect_check(struct flash_bank_s *bank)
- {
- LOG_INFO(__FUNCTION__);
- return ERROR_OK;
- }
-
- static int avrf_info(struct flash_bank_s *bank, char *buf, int buf_size)
- {
- target_t *target = bank->target;
- avr_common_t *avr = target->arch_info;
- avrf_type_t *avr_info = NULL;
- int i;
- u32 device_id;
-
- if (bank->target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
- avr_jtag_read_jtagid(avr, &device_id);
- if (ERROR_OK != mcu_execute_queue())
- {
- return ERROR_FAIL;
- }
-
- LOG_INFO( "device id = 0x%08x", device_id );
- if (EXTRACT_MFG(device_id) != 0x1F)
- {
- LOG_ERROR("0x%X is invalid Manufacturer for avr, 0x%X is expected", EXTRACT_MFG(device_id), 0x1F);
- }
-
- for (i = 0; i < (int)(sizeof(avft_chips_info) / sizeof(avft_chips_info[0])); i++)
- {
- if (avft_chips_info[i].chip_id == EXTRACT_PART(device_id))
- {
- avr_info = &avft_chips_info[i];
- LOG_INFO("target device is %s", avr_info->name);
-
- break;
- }
- }
-
- if (avr_info != NULL)
- {
- // chip found
- snprintf(buf, buf_size, "%s - Rev: 0x%X", avr_info->name, EXTRACT_VER(device_id));
- return ERROR_OK;
- }
- else
- {
- // chip not supported
- snprintf(buf, buf_size, "Cannot identify target as a avr\n");
- return ERROR_FLASH_OPERATION_FAILED;
- }
- }
-
- static int avrf_mass_erase(struct flash_bank_s *bank)
- {
- target_t *target = bank->target;
- avr_common_t *avr = target->arch_info;
-
- if (target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
- if ((ERROR_OK != avr_jtagprg_enterprogmode(avr))
- || (ERROR_OK != avr_jtagprg_chiperase(avr))
- || (ERROR_OK != avr_jtagprg_leaveprogmode(avr)))
- {
- return ERROR_FAIL;
- }
-
- return ERROR_OK;
- }
-
- static int avrf_handle_mass_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
- {
- flash_bank_t *bank;
- int i;
-
- if (argc < 1)
- {
- command_print(cmd_ctx, "avr mass_erase <bank>");
- return ERROR_OK;
- }
-
- bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
- if (!bank)
- {
- command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
- return ERROR_OK;
- }
-
- if (avrf_mass_erase(bank) == ERROR_OK)
- {
- /* set all sectors as erased */
- for (i = 0; i < bank->num_sectors; i++)
- {
- bank->sectors[i].is_erased = 1;
- }
-
- command_print(cmd_ctx, "avr mass erase complete");
- }
- else
- {
- command_print(cmd_ctx, "avr mass erase failed");
- }
-
- LOG_DEBUG(__FUNCTION__);
- return ERROR_OK;
- }
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