Go to the source code of this file.
Macros | |
| #define | CLOCK_IDLE() 0 |
| #define | SWD_WAIT_TIMEOUT 500 |
Functions | |
| static void | bitbang_end_state (tap_state_t state) |
| int | bitbang_execute_queue (struct jtag_command *cmd_queue) |
| static int | bitbang_execute_tms (struct jtag_command *cmd) |
| Clock a bunch of TMS (or SWDIO) transitions, to change the JTAG (or SWD) state machine. More... | |
| static int | bitbang_path_move (struct pathmove_command *cmd) |
| static int | bitbang_runtest (int num_cycles) |
| static int | bitbang_scan (bool ir_scan, enum scan_type type, uint8_t *buffer, unsigned scan_size) |
| static void | bitbang_sleep (unsigned int microseconds) |
| static int | bitbang_stableclocks (int num_cycles) |
| Function bitbang_stableclocks issues a number of clock cycles while staying in a stable state. More... | |
| static int | bitbang_state_move (int skip) |
| static void | bitbang_swd_exchange (bool rnw, uint8_t buf[], unsigned int offset, unsigned int bit_cnt) |
| static int | bitbang_swd_init (void) |
| static void | bitbang_swd_read_reg (uint8_t cmd, uint32_t *value, uint32_t ap_delay_clk) |
| static int | bitbang_swd_run_queue (void) |
| static int | bitbang_swd_switch_seq (enum swd_special_seq seq) |
| static void | bitbang_swd_write_reg (uint8_t cmd, uint32_t value, uint32_t ap_delay_clk) |
| static void | swd_clear_sticky_errors (void) |
Variables | |
| struct bitbang_interface * | bitbang_interface |
| const struct swd_driver | bitbang_swd |
| static int | queued_retval |
Macro Definition Documentation
◆ CLOCK_IDLE
◆ SWD_WAIT_TIMEOUT
Function Documentation
◆ bitbang_end_state()
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Definition at line 63 of file bitbang.c.
References state, tap_is_state_stable(), and tap_set_end_state().
Referenced by bitbang_execute_queue(), bitbang_runtest(), and bitbang_scan().
◆ bitbang_execute_queue()
| int bitbang_execute_queue | ( | struct jtag_command * | cmd_queue | ) |
Definition at line 296 of file bitbang.c.
References bitbang_end_state(), bitbang_execute_tms(), bitbang_path_move(), bitbang_runtest(), bitbang_scan(), bitbang_sleep(), bitbang_stableclocks(), bitbang_state_move(), bitbang_interface::blink, buffer, cmd, ERROR_FAIL, ERROR_JTAG_QUEUE_FAILED, ERROR_OK, bitbang_interface::flush, jtag_build_buffer(), JTAG_PATHMOVE, jtag_read_buffer(), JTAG_RUNTEST, JTAG_SCAN, jtag_scan_type(), JTAG_SLEEP, JTAG_STABLECLOCKS, JTAG_TLR_RESET, JTAG_TMS, LOG_DEBUG_IO, LOG_ERROR, tap_state_name(), and type.
◆ bitbang_execute_tms()
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Clock a bunch of TMS (or SWDIO) transitions, to change the JTAG (or SWD) state machine.
Definition at line 93 of file bitbang.c.
References bits, CLOCK_IDLE, cmd, ERROR_FAIL, ERROR_OK, LOG_DEBUG_IO, and bitbang_interface::write.
Referenced by bitbang_execute_queue().
◆ bitbang_path_move()
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Definition at line 114 of file bitbang.c.
References CLOCK_IDLE, cmd, ERROR_FAIL, ERROR_OK, LOG_ERROR, tap_get_state(), tap_set_end_state(), tap_set_state, tap_state_name(), tap_state_transition(), and bitbang_interface::write.
Referenced by bitbang_execute_queue().
◆ bitbang_runtest()
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Definition at line 150 of file bitbang.c.
References bitbang_end_state(), bitbang_state_move(), CLOCK_IDLE, ERROR_FAIL, ERROR_OK, tap_get_end_state(), tap_get_state(), TAP_IDLE, and bitbang_interface::write.
Referenced by bitbang_execute_queue().
◆ bitbang_scan()
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Definition at line 198 of file bitbang.c.
References BB_HIGH, BB_LOW, bitbang_end_state(), bitbang_state_move(), bitbang_interface::buf_size, buffer, ERROR_FAIL, ERROR_OK, bitbang_interface::read, bitbang_interface::read_sample, bitbang_interface::sample, SCAN_IN, SCAN_OUT, TAP_DRSHIFT, tap_get_end_state(), tap_get_state(), TAP_IRSHIFT, type, and bitbang_interface::write.
Referenced by bitbang_execute_queue().
◆ bitbang_sleep()
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Definition at line 287 of file bitbang.c.
References jtag_sleep(), and bitbang_interface::sleep.
Referenced by bitbang_execute_queue().
◆ bitbang_stableclocks()
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Function bitbang_stableclocks issues a number of clock cycles while staying in a stable state.
Because the TMS value required to stay in the RESET state is a 1, whereas the TMS value required to stay in any of the other stable states is a 0, this function checks the current stable state to decide on the value of TMS to use.
Definition at line 182 of file bitbang.c.
References ERROR_FAIL, ERROR_OK, tap_get_state(), TAP_RESET, and bitbang_interface::write.
Referenced by bitbang_execute_queue().
◆ bitbang_state_move()
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Definition at line 69 of file bitbang.c.
References CLOCK_IDLE, ERROR_FAIL, ERROR_OK, tap_get_end_state(), tap_get_state(), tap_get_tms_path(), tap_get_tms_path_len(), tap_set_state, and bitbang_interface::write.
Referenced by bitbang_execute_queue(), bitbang_runtest(), and bitbang_scan().
◆ bitbang_swd_exchange()
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Definition at line 398 of file bitbang.c.
References bitbang_interface::blink, offset, bitbang_interface::swd_write, and bitbang_interface::swdio_read.
Referenced by bitbang_swd_read_reg(), bitbang_swd_switch_seq(), and bitbang_swd_write_reg().
◆ bitbang_swd_init()
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◆ bitbang_swd_read_reg()
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Definition at line 473 of file bitbang.c.
References alive_sleep(), bitbang_swd_exchange(), buf_get_u32(), cmd, DIV_ROUND_UP, ERROR_FAIL, ERROR_OK, LOG_CUSTOM_LEVEL, LOG_DEBUG, LOG_ERROR, LOG_LVL_DEBUG, LOG_LVL_DEBUG_IO, NULL, parity(), parity_u32(), queued_retval, SWD_ACK_FAULT, SWD_ACK_OK, swd_ack_to_error_code(), SWD_ACK_WAIT, swd_clear_sticky_errors(), SWD_CMD_A32, SWD_CMD_APNDP, SWD_CMD_PARK, SWD_CMD_RNW, SWD_CMD_START, SWD_WAIT_TIMEOUT, bitbang_interface::swdio_drive, and timeval_ms().
◆ bitbang_swd_run_queue()
◆ bitbang_swd_switch_seq()
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Definition at line 428 of file bitbang.c.
References bitbang_swd_exchange(), DORMANT_TO_JTAG, DORMANT_TO_SWD, ERROR_FAIL, ERROR_OK, JTAG_TO_DORMANT, JTAG_TO_SWD, LINE_RESET, LOG_DEBUG, LOG_DEBUG_IO, LOG_ERROR, swd_seq_dormant_to_jtag, swd_seq_dormant_to_jtag_len, swd_seq_dormant_to_swd, swd_seq_dormant_to_swd_len, swd_seq_jtag_to_dormant, swd_seq_jtag_to_dormant_len, swd_seq_jtag_to_swd, swd_seq_jtag_to_swd_len, swd_seq_line_reset, swd_seq_line_reset_len, swd_seq_swd_to_dormant, swd_seq_swd_to_dormant_len, swd_seq_swd_to_jtag, swd_seq_swd_to_jtag_len, SWD_TO_DORMANT, and SWD_TO_JTAG.
◆ bitbang_swd_write_reg()
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Definition at line 533 of file bitbang.c.
References alive_sleep(), bitbang_swd_exchange(), buf_get_u32(), buf_set_u32(), cmd, DIV_ROUND_UP, ERROR_OK, LOG_CUSTOM_LEVEL, LOG_DEBUG, LOG_LVL_DEBUG, LOG_LVL_DEBUG_IO, NULL, parity_u32(), queued_retval, SWD_ACK_FAULT, SWD_ACK_OK, swd_ack_to_error_code(), SWD_ACK_WAIT, swd_clear_sticky_errors(), SWD_CMD_A32, SWD_CMD_APNDP, SWD_CMD_PARK, swd_cmd_returns_ack(), SWD_CMD_RNW, SWD_CMD_START, SWD_WAIT_TIMEOUT, bitbang_interface::swdio_drive, and timeval_ms().
Referenced by swd_clear_sticky_errors().
◆ swd_clear_sticky_errors()
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Definition at line 467 of file bitbang.c.
References bitbang_swd_write_reg(), DP_ABORT, ORUNERRCLR, STKCMPCLR, STKERRCLR, swd_cmd(), and WDERRCLR.
Referenced by bitbang_swd_read_reg(), and bitbang_swd_write_reg().
Variable Documentation
◆ bitbang_interface
| struct bitbang_interface* bitbang_interface |
◆ bitbang_swd
| const struct swd_driver bitbang_swd |
◆ queued_retval
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Definition at line 390 of file bitbang.c.
Referenced by bitbang_swd_read_reg(), and bitbang_swd_write_reg().
