OpenOCD
interface.h
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1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 
3 /***************************************************************************
4  * Copyright (C) 2005 by Dominic Rath *
5  * Dominic.Rath@gmx.de *
6  * *
7  * Copyright (C) 2007,2008 Øyvind Harboe *
8  * oyvind.harboe@zylin.com *
9  * *
10  * Copyright (C) 2009 Zachary T Welch *
11  * zw@superlucidity.net *
12  ***************************************************************************/
13 
14 #ifndef OPENOCD_JTAG_INTERFACE_H
15 #define OPENOCD_JTAG_INTERFACE_H
16 
17 #include <jtag/jtag.h>
18 #include <jtag/swim.h>
19 #include <target/arm_tpiu_swo.h>
20 #include <transport/transport.h>
21 
22 /* @file
23  * The "Cable Helper API" is what the cable drivers can use to help
24  * implement their "Cable API". So a Cable Helper API is a set of
25  * helper functions used by cable drivers, and this is different from a
26  * Cable API. A "Cable API" is what higher level code used to talk to a
27  * cable.
28  */
29 
30 
32 void tap_set_state_impl(enum tap_state new_state);
33 
50 #define tap_set_state(new_state) \
51  do { \
52  LOG_DEBUG_IO("tap_set_state(%s)", tap_state_name(new_state)); \
53  tap_set_state_impl(new_state); \
54  } while (0)
55 
61 enum tap_state tap_get_state(void);
62 
74 void tap_set_end_state(enum tap_state new_end_state);
75 
80 enum tap_state tap_get_end_state(void);
81 
95 int tap_get_tms_path(enum tap_state from, enum tap_state to);
96 
113 int tap_get_tms_path_len(enum tap_state from, enum tap_state to);
114 
115 
129 int tap_move_ndx(enum tap_state astate);
130 
135 bool tap_is_state_stable(enum tap_state astate);
136 
144 enum tap_state tap_state_transition(enum tap_state current_state, bool tms);
145 
147 void tap_use_new_tms_table(bool use_new);
150 
151 enum tap_state jtag_debug_state_machine_(const void *tms_buf, const void *tdi_buf,
152  unsigned int tap_len, enum tap_state start_tap_state);
153 
162 static inline enum tap_state jtag_debug_state_machine(const void *tms_buf,
163  const void *tdi_buf, unsigned int tap_len, enum tap_state start_tap_state)
164 {
166  return jtag_debug_state_machine_(tms_buf, tdi_buf, tap_len, start_tap_state);
167  else
168  return start_tap_state;
169 }
170 
187  unsigned int supported;
188 #define DEBUG_CAP_TMS_SEQ (1 << 0)
189 
196  int (*execute_queue)(struct jtag_command *cmd_queue);
197 };
198 
210  const char * const name;
211 
215  unsigned int transport_ids;
216 
222 
228 
240  int (*init)(void);
241 
248  int (*quit)(void);
249 
264  int (*reset)(int srst, int trst);
265 
271  int (*speed)(int speed);
272 
283  int (*khz)(int khz, int *jtag_speed);
284 
292  int (*speed_div)(int speed, int *khz);
293 
306 
320 
335  int (*config_trace)(bool enabled, enum tpiu_pin_protocol pin_protocol,
336  uint32_t port_size, unsigned int *trace_freq,
337  unsigned int traceclkin_freq, uint16_t *prescaler);
338 
348  int (*poll_trace)(uint8_t *buf, size_t *size);
349 
352 
354  const struct swd_driver *swd_ops;
355 
356  /* DAP APIs over JTAG transport */
357  const struct dap_ops *dap_jtag_ops;
358 
359  /* DAP APIs over SWD transport */
360  const struct dap_ops *dap_swd_ops;
361 
362  /* SWIM APIs */
363  const struct swim_driver *swim_ops;
364 };
365 
366 int adapter_resets(int assert_trst, int assert_srst);
367 int adapter_assert_reset(void);
368 int adapter_deassert_reset(void);
369 int adapter_config_trace(bool enabled, enum tpiu_pin_protocol pin_protocol,
370  uint32_t port_size, unsigned int *trace_freq,
371  unsigned int traceclkin_freq, uint16_t *prescaler);
372 int adapter_poll_trace(uint8_t *buf, size_t *size);
373 
387 extern struct adapter_driver ftdi_adapter_driver;
389 extern struct adapter_driver hl_adapter_driver;
414 
415 #endif /* OPENOCD_JTAG_INTERFACE_H */
tpiu_pin_protocol
Definition: arm_tpiu_swo.h:7
uint32_t size
Size of dw_spi_transaction::buffer.
Definition: dw-spi-helper.h:4
struct adapter_driver imx_gpio_adapter_driver
Definition: imx_gpio.c:425
struct adapter_driver linuxgpiod_adapter_driver
Definition: linuxgpiod.c:433
struct adapter_driver dummy_adapter_driver
Definition: dummy.c:141
struct adapter_driver stlink_dap_adapter_driver
Definition: stlink_usb.c:5225
struct adapter_driver amt_jtagaccel_adapter_driver
struct adapter_driver usb_blaster_adapter_driver
Definition: usb_blaster.c:1058
struct adapter_driver ft232r_adapter_driver
Definition: ft232r.c:901
enum tap_state tap_get_end_state(void)
For more information,.
Definition: interface.c:56
struct adapter_driver jtag_vpi_adapter_driver
Definition: jtag_vpi.c:667
int adapter_resets(int assert_trst, int assert_srst)
Definition: jtag/core.c:1845
struct adapter_driver buspirate_adapter_driver
Definition: buspirate.c:541
struct adapter_driver cmsis_dap_adapter_driver
Definition: cmsis_dap.c:2322
struct adapter_driver angie_adapter_driver
Definition: angie.c:2389
struct adapter_driver dmem_dap_adapter_driver
Definition: dmem.c:607
struct adapter_driver osbdm_adapter_driver
Definition: osbdm.c:685
void tap_use_new_tms_table(bool use_new)
Allow switching between old and new TMS tables.
Definition: interface.c:447
struct adapter_driver vdebug_adapter_driver
Definition: vdebug.c:1345
struct adapter_driver ep93xx_adapter_driver
Definition: ep93xx.c:47
bool tap_uses_new_tms_table(void)
Definition: interface.c:451
struct adapter_driver opendous_adapter_driver
Definition: opendous.c:230
int tap_get_tms_path_len(enum tap_state from, enum tap_state to)
Function int tap_get_tms_path_len returns the total number of bits that represents a TMS path transit...
Definition: interface.c:195
struct adapter_driver xlnx_pcie_xvc_adapter_driver
struct adapter_driver ftdi_adapter_driver
Definition: ftdi.c:1255
int adapter_config_trace(bool enabled, enum tpiu_pin_protocol pin_protocol, uint32_t port_size, unsigned int *trace_freq, unsigned int traceclkin_freq, uint16_t *prescaler)
Definition: jtag/core.c:1929
int adapter_poll_trace(uint8_t *buf, size_t *size)
Definition: jtag/core.c:1944
struct adapter_driver linuxspidev_adapter_driver
Definition: linuxspidev.c:619
void tap_set_end_state(enum tap_state new_end_state)
This function sets the state of an "end state follower" which tracks the state that any cable driver ...
Definition: interface.c:48
struct adapter_driver xds110_adapter_driver
Definition: xds110.c:2065
struct adapter_driver bcm2835gpio_adapter_driver
Definition: bcm2835gpio.c:597
struct adapter_driver armjtagew_adapter_driver
Definition: arm-jtag-ew.c:487
struct adapter_driver openjtag_adapter_driver
Definition: openjtag.c:932
struct adapter_driver vsllink_adapter_driver
Definition: vsllink.c:929
struct adapter_driver kitprog_adapter_driver
Definition: kitprog.c:911
struct adapter_driver at91rm9200_adapter_driver
Definition: at91rm9200.c:187
struct adapter_driver sysfsgpio_adapter_driver
Definition: sysfsgpio.c:553
struct adapter_driver am335xgpio_adapter_driver
Definition: am335xgpio.c:493
struct adapter_driver presto_adapter_driver
Definition: presto.c:529
struct adapter_driver rshim_dap_adapter_driver
Definition: rshim.c:511
void tap_set_state_impl(enum tap_state new_state)
implementation of wrapper function tap_set_state()
Definition: interface.c:31
int adapter_deassert_reset(void)
Definition: jtag/core.c:1912
enum tap_state jtag_debug_state_machine_(const void *tms_buf, const void *tdi_buf, unsigned int tap_len, enum tap_state start_tap_state)
Definition: interface.c:374
struct adapter_driver rlink_adapter_driver
Definition: rlink.c:1676
struct adapter_driver hl_adapter_driver
struct adapter_driver jlink_adapter_driver
Definition: jlink.c:2271
struct adapter_driver gw16012_adapter_driver
Definition: gw16012.c:515
static enum tap_state jtag_debug_state_machine(const void *tms_buf, const void *tdi_buf, unsigned int tap_len, enum tap_state start_tap_state)
Prints verbose TAP state transitions for the given TMS/TDI buffers.
Definition: interface.h:162
struct adapter_driver ulink_adapter_driver
Definition: ulink.c:2272
int tap_move_ndx(enum tap_state astate)
Function tap_move_ndx when given a stable state, returns an index from 0-5.
Definition: interface.c:61
struct adapter_driver esp_usb_adapter_driver
Definition: esp_usb_jtag.c:785
enum tap_state tap_get_state(void)
This function gets the state of the "state follower" which tracks the state of the TAPs connected to ...
Definition: interface.c:37
bool tap_is_state_stable(enum tap_state astate)
Function tap_is_state_stable returns true if the astate is stable.
Definition: interface.c:200
int tap_get_tms_path(enum tap_state from, enum tap_state to)
This function provides a "bit sequence" indicating what has to be done with TMS during a sequence of ...
Definition: interface.c:190
int adapter_assert_reset(void)
Definition: jtag/core.c:1892
struct adapter_driver usbprog_adapter_driver
Definition: usbprog.c:591
struct adapter_driver parport_adapter_driver
Definition: parport.c:534
enum tap_state tap_state_transition(enum tap_state current_state, bool tms)
Function tap_state_transition takes a current TAP state and returns the next state according to the t...
Definition: interface.c:223
struct adapter_driver jtag_dpi_adapter_driver
Definition: jtag_dpi.c:399
struct adapter_driver remote_bitbang_adapter_driver
The JTAG interface can be implemented with a software or hardware fifo.
tap_state
Defines JTAG Test Access Port states.
Definition: jtag.h:37
#define LOG_LEVEL_IS(FOO)
Definition: log.h:100
@ LOG_LVL_DEBUG_IO
Definition: log.h:48
Represents a driver for a debugging interface.
Definition: interface.h:208
struct jtag_interface * jtag_ops
Low-level JTAG APIs.
Definition: interface.h:351
int(* config_trace)(bool enabled, enum tpiu_pin_protocol pin_protocol, uint32_t port_size, unsigned int *trace_freq, unsigned int traceclkin_freq, uint16_t *prescaler)
Configure trace parameters for the adapter.
Definition: interface.h:335
int(* speed)(int speed)
Set the interface speed.
Definition: interface.h:271
const struct swim_driver * swim_ops
Definition: interface.h:363
unsigned int transport_preferred_id
ID of transport that gets auto-selected when not specified by the user.
Definition: interface.h:221
int(* khz)(int khz, int *jtag_speed)
Returns JTAG maximum speed for KHz.
Definition: interface.h:283
const struct command_registration * commands
The interface driver may register additional commands to expose additional features not covered by th...
Definition: interface.h:227
int(* speed_div)(int speed, int *khz)
Calculate the clock frequency (in KHz) for the given speed.
Definition: interface.h:292
unsigned int transport_ids
Bitmask of transport IDs supported in C code.
Definition: interface.h:215
int(* init)(void)
Interface driver must initialize any resources and connect to a JTAG device.
Definition: interface.h:240
const struct swd_driver * swd_ops
Low-level SWD APIs.
Definition: interface.h:354
int(* reset)(int srst, int trst)
Control (assert/deassert) the signals SRST and TRST on the interface.
Definition: interface.h:264
const struct dap_ops * dap_swd_ops
Definition: interface.h:360
int(* power_dropout)(int *power_dropout)
Read and clear the power dropout flag.
Definition: interface.h:305
const struct dap_ops * dap_jtag_ops
Definition: interface.h:357
int(* poll_trace)(uint8_t *buf, size_t *size)
Poll for new trace data.
Definition: interface.h:348
int(* srst_asserted)(int *srst_asserted)
Read and clear the srst asserted detection flag.
Definition: interface.h:319
const char *const name
The name of the interface driver.
Definition: interface.h:210
int(* quit)(void)
Interface driver must tear down all resources and disconnect from the JTAG device.
Definition: interface.h:248
Transport-neutral representation of queued DAP transactions, supporting both JTAG and SWD transports.
Definition: arm_adi_v5.h:446
Represents a driver for a debugging interface.
Definition: interface.h:183
unsigned int supported
Bit vector listing capabilities exposed by this driver.
Definition: interface.h:187
int(* execute_queue)(struct jtag_command *cmd_queue)
Execute commands in the supplied queue.
Definition: interface.h:196
This file implements support for STMicroelectronics debug protocol SWIM (Single Wire Interface Module...