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Diffstat (limited to 'src/target/avrt.c')
| -rw-r--r-- | src/target/avrt.c | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/src/target/avrt.c b/src/target/avrt.c new file mode 100644 index 00000000..f67f1969 --- /dev/null +++ b/src/target/avrt.c @@ -0,0 +1,354 @@ +/***************************************************************************
+ * 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 "avrt.h"
+
+#include "register.h"
+#include "target.h"
+#include "log.h"
+#include "jtag.h"
+#include "binarybuffer.h"
+#include "time_support.h"
+#include "breakpoints.h"
+#include "fileio.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <errno.h>
+
+#define AVR_JTAG_INS_LEN 4
+
+/* cli handling */
+int avr_register_commands(struct command_context_s *cmd_ctx);
+
+/* forward declarations */
+int avr_target_create(struct target_s *target, Jim_Interp *interp);
+int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
+int avr_quit(void);
+
+int avr_arch_state(struct target_s *target);
+int avr_poll(target_t *target);
+int avr_halt(target_t *target);
+int avr_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution);
+int avr_step(struct target_s *target, int current, u32 address, int handle_breakpoints);
+
+int avr_assert_reset(target_t *target);
+int avr_deassert_reset(target_t *target);
+int avr_soft_reset_halt(struct target_s *target);
+
+/* IR and DR functions */
+int avr_jtag_sendinstr(jtag_tap_t *tap, u8 *ir_in, u8 ir_out);
+int avr_jtag_senddat(jtag_tap_t *tap, u32 *dr_in, u32 dr_out, int len);
+
+int mcu_write_ir(jtag_tap_t *tap, u8 *ir_in, u8 *ir_out, int ir_len, int rti);
+int mcu_write_dr(jtag_tap_t *tap, u8 *dr_in, u8 *dr_out, int dr_len, int rti);
+int mcu_write_ir_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int ir_len, int rti);
+int mcu_write_dr_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int dr_len, int rti);
+int mcu_write_ir_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int ir_len, int rti);
+int mcu_write_dr_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int dr_len, int rti);
+int mcu_write_ir_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int ir_len, int rti);
+int mcu_write_dr_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int dr_len, int rti);
+int mcu_execute_queue(void);
+
+target_type_t avr_target =
+{
+ .name = "avr",
+
+ .poll = avr_poll,
+ .arch_state = avr_arch_state,
+
+ .target_request_data = NULL,
+
+ .halt = avr_halt,
+ .resume = avr_resume,
+ .step = avr_step,
+
+ .assert_reset = avr_assert_reset,
+ .deassert_reset = avr_deassert_reset,
+ .soft_reset_halt = avr_soft_reset_halt,
+/*
+ .get_gdb_reg_list = avr_get_gdb_reg_list,
+
+ .read_memory = avr_read_memory,
+ .write_memory = avr_write_memory,
+ .bulk_write_memory = avr_bulk_write_memory,
+ .checksum_memory = avr_checksum_memory,
+ .blank_check_memory = avr_blank_check_memory,
+
+ .run_algorithm = avr_run_algorithm,
+
+ .add_breakpoint = avr_add_breakpoint,
+ .remove_breakpoint = avr_remove_breakpoint,
+ .add_watchpoint = avr_add_watchpoint,
+ .remove_watchpoint = avr_remove_watchpoint,
+*/
+ .register_commands = avr_register_commands,
+ .target_create = avr_target_create,
+ .init_target = avr_init_target,
+ .quit = avr_quit,
+/*
+ .virt2phys = avr_virt2phys,
+ .mmu = avr_mmu
+*/
+};
+
+int avr_register_commands(struct command_context_s *cmd_ctx)
+{
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_target_create(struct target_s *target, Jim_Interp *interp)
+{
+ avr_common_t *avr = calloc(1, sizeof(avr_common_t));
+
+ avr->jtag_info.tap = target->tap;
+ target->arch_info = avr;
+
+ return ERROR_OK;
+}
+
+int avr_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
+{
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_quit(void)
+{
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_arch_state(struct target_s *target)
+{
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_poll(target_t *target)
+{
+ if ((target->state == TARGET_RUNNING) || (target->state == TARGET_DEBUG_RUNNING))
+ {
+ target->state = TARGET_HALTED;
+ }
+
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_halt(target_t *target)
+{
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
+{
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_step(struct target_s *target, int current, u32 address, int handle_breakpoints)
+{
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_assert_reset(target_t *target)
+{
+ target->state = TARGET_RESET;
+
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_deassert_reset(target_t *target)
+{
+ target->state = TARGET_RUNNING;
+
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_soft_reset_halt(struct target_s *target)
+{
+ LOG_DEBUG(__FUNCTION__);
+ return ERROR_OK;
+}
+
+int avr_jtag_senddat(jtag_tap_t *tap, u32* dr_in, u32 dr_out, int len)
+{
+ return mcu_write_dr_u32(tap, dr_in, dr_out, len, 1);
+}
+
+int avr_jtag_sendinstr(jtag_tap_t *tap, u8 *ir_in, u8 ir_out)
+{
+ return mcu_write_ir_u8(tap, ir_in, ir_out, AVR_JTAG_INS_LEN, 1);
+}
+
+/* IR and DR functions */
+int mcu_write_ir(jtag_tap_t *tap, u8 *ir_in, u8 *ir_out, int ir_len, int rti)
+{
+ if (NULL == tap)
+ {
+ LOG_ERROR("invalid tap");
+ return ERROR_FAIL;
+ }
+ if (ir_len != tap->ir_length)
+ {
+ LOG_ERROR("invalid ir_len");
+ return ERROR_FAIL;
+ }
+
+ {
+ scan_field_t field[1];
+
+ field[0].tap = tap;
+ field[0].num_bits = tap->ir_length;
+ field[0].out_value = ir_out;
+ field[0].out_mask = NULL;
+ field[0].in_value = ir_in;
+ field[0].in_check_value = NULL;
+ field[0].in_check_mask = NULL;
+ field[0].in_handler = NULL;
+ field[0].in_handler_priv = NULL;
+ jtag_add_plain_ir_scan(sizeof(field) / sizeof(field[0]), field, TAP_IDLE);
+ }
+
+ return ERROR_OK;
+}
+
+int mcu_write_dr(jtag_tap_t *tap, u8 *dr_in, u8 *dr_out, int dr_len, int rti)
+{
+ if (NULL == tap)
+ {
+ LOG_ERROR("invalid tap");
+ return ERROR_FAIL;
+ }
+
+ {
+ scan_field_t field[1];
+
+ field[0].tap = tap;
+ field[0].num_bits = dr_len;
+ field[0].out_value = dr_out;
+ field[0].out_mask = NULL;
+ field[0].in_value = dr_in;
+ field[0].in_check_value = NULL;
+ field[0].in_check_mask = NULL;
+ field[0].in_handler = NULL;
+ field[0].in_handler_priv = NULL;
+ jtag_add_plain_dr_scan(sizeof(field) / sizeof(field[0]), field, TAP_IDLE);
+ }
+
+ return ERROR_OK;
+}
+
+int mcu_write_ir_u8(jtag_tap_t *tap, u8 *ir_in, u8 ir_out, int ir_len, int rti)
+{
+ if (ir_len > 8)
+ {
+ LOG_ERROR("ir_len overflow, maxium is 8");
+ return ERROR_FAIL;
+ }
+
+ mcu_write_ir(tap, ir_in, &ir_out, ir_len, rti);
+
+ return ERROR_OK;
+}
+
+int mcu_write_dr_u8(jtag_tap_t *tap, u8 *dr_in, u8 dr_out, int dr_len, int rti)
+{
+ if (dr_len > 8)
+ {
+ LOG_ERROR("dr_len overflow, maxium is 8");
+ return ERROR_FAIL;
+ }
+
+ mcu_write_dr(tap, dr_in, &dr_out, dr_len, rti);
+
+ return ERROR_OK;
+}
+
+int mcu_write_ir_u16(jtag_tap_t *tap, u16 *ir_in, u16 ir_out, int ir_len, int rti)
+{
+ if (ir_len > 16)
+ {
+ LOG_ERROR("ir_len overflow, maxium is 16");
+ return ERROR_FAIL;
+ }
+
+ mcu_write_ir(tap, (u8*)ir_in, (u8*)&ir_out, ir_len, rti);
+
+ return ERROR_OK;
+}
+
+int mcu_write_dr_u16(jtag_tap_t *tap, u16 *dr_in, u16 dr_out, int dr_len, int rti)
+{
+ if (dr_len > 16)
+ {
+ LOG_ERROR("dr_len overflow, maxium is 16");
+ return ERROR_FAIL;
+ }
+
+ mcu_write_dr(tap, (u8*)dr_in, (u8*)&dr_out, dr_len, rti);
+
+ return ERROR_OK;
+}
+
+int mcu_write_ir_u32(jtag_tap_t *tap, u32 *ir_in, u32 ir_out, int ir_len, int rti)
+{
+ if (ir_len > 32)
+ {
+ LOG_ERROR("ir_len overflow, maxium is 32");
+ return ERROR_FAIL;
+ }
+
+ mcu_write_ir(tap, (u8*)ir_in, (u8*)&ir_out, ir_len, rti);
+
+ return ERROR_OK;
+}
+
+int mcu_write_dr_u32(jtag_tap_t *tap, u32 *dr_in, u32 dr_out, int dr_len, int rti)
+{
+ if (dr_len > 32)
+ {
+ LOG_ERROR("dr_len overflow, maxium is 32");
+ return ERROR_FAIL;
+ }
+
+ mcu_write_dr(tap, (u8*)dr_in, (u8*)&dr_out, dr_len, rti);
+
+ return ERROR_OK;
+}
+
+int mcu_execute_queue(void)
+{
+ return jtag_execute_queue();
+}
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