diff options
Diffstat (limited to 'src/jtag/jtag.h')
| -rw-r--r-- | src/jtag/jtag.h | 152 |
1 files changed, 72 insertions, 80 deletions
diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index aeb7b332..da5e025f 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -20,6 +20,7 @@ * Free Software Foundation, Inc., * * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * ***************************************************************************/ + #ifndef JTAG_H #define JTAG_H @@ -52,8 +53,7 @@ * Fix those drivers to map as appropriate ... then pick some * sane set of numbers here (where 0/uninitialized == INVALID). */ -typedef enum tap_state -{ +typedef enum tap_state { TAP_INVALID = -1, #if BUILD_ZY1000 @@ -92,10 +92,10 @@ typedef enum tap_state */ const char *tap_state_name(tap_state_t state); -/// Provides user-friendly name lookup of TAP states. +/** Provides user-friendly name lookup of TAP states. */ tap_state_t tap_state_by_name(const char *name); -/// The current TAP state of the pending JTAG command queue. +/** The current TAP state of the pending JTAG command queue. */ extern tap_state_t cmd_queue_cur_state; /** @@ -107,54 +107,54 @@ extern tap_state_t cmd_queue_cur_state; * jtag_add_dr_scan_check() to validate the value that was scanned out. */ struct scan_field { - /// The number of bits this field specifies (up to 32) + /** The number of bits this field specifies (up to 32) */ int num_bits; - /// A pointer to value to be scanned into the device - const uint8_t* out_value; - /// A pointer to a 32-bit memory location for data scanned out - uint8_t* in_value; - - /// The value used to check the data scanned out. - uint8_t* check_value; - /// The mask to go with check_value - uint8_t* check_mask; + /** A pointer to value to be scanned into the device */ + const uint8_t *out_value; + /** A pointer to a 32-bit memory location for data scanned out */ + uint8_t *in_value; + + /** The value used to check the data scanned out. */ + uint8_t *check_value; + /** The mask to go with check_value */ + uint8_t *check_mask; }; struct jtag_tap { - const char* chip; - const char* tapname; - const char* dotted_name; + const char *chip; + const char *tapname; + const char *dotted_name; int abs_chain_position; - /// Is this TAP disabled after JTAG reset? + /** Is this TAP disabled after JTAG reset? */ bool disabled_after_reset; - /// Is this TAP currently enabled? + /** Is this TAP currently enabled? */ bool enabled; int ir_length; /**< size of instruction register */ uint32_t ir_capture_value; - uint8_t* expected; /**< Capture-IR expected value */ + uint8_t *expected; /**< Capture-IR expected value */ uint32_t ir_capture_mask; - uint8_t* expected_mask; /**< Capture-IR expected mask */ + uint8_t *expected_mask; /**< Capture-IR expected mask */ uint32_t idcode; /**< device identification code */ /** not all devices have idcode, * we'll discover this during chain examination */ bool hasidcode; - /// Array of expected identification codes */ - uint32_t* expected_ids; - /// Number of expected identification codes + /** Array of expected identification codes */ + uint32_t *expected_ids; + /** Number of expected identification codes */ uint8_t expected_ids_cnt; - /// Flag saying whether to ignore version field in expected_ids[] + /** Flag saying whether to ignore version field in expected_ids[] */ bool ignore_version; - /// current instruction - uint8_t* cur_instr; - /// Bypass register selected + /** current instruction */ + uint8_t *cur_instr; + /** Bypass register selected */ int bypass; struct jtag_tap_event_action *event_action; - struct jtag_tap* next_tap; + struct jtag_tap *next_tap; /* dap instance if some null if no instance , initialized to 0 by calloc*/ struct adiv5_dap *dap; /* private pointer to support none-jtag specific functions */ @@ -164,16 +164,15 @@ struct jtag_tap { void jtag_tap_init(struct jtag_tap *tap); void jtag_tap_free(struct jtag_tap *tap); -struct jtag_tap* jtag_all_taps(void); +struct jtag_tap *jtag_all_taps(void); const char *jtag_tap_name(const struct jtag_tap *tap); -struct jtag_tap* jtag_tap_by_string(const char* dotted_name); -struct jtag_tap* jtag_tap_by_jim_obj(Jim_Interp* interp, Jim_Obj* obj); -struct jtag_tap* jtag_tap_by_position(unsigned abs_position); -struct jtag_tap* jtag_tap_next_enabled(struct jtag_tap* p); +struct jtag_tap *jtag_tap_by_string(const char* dotted_name); +struct jtag_tap *jtag_tap_by_jim_obj(Jim_Interp* interp, Jim_Obj *obj); +struct jtag_tap *jtag_tap_by_position(unsigned abs_position); +struct jtag_tap *jtag_tap_next_enabled(struct jtag_tap *p); unsigned jtag_tap_count_enabled(void); unsigned jtag_tap_count(void); - /* * - TRST_ASSERTED triggers two sets of callbacks, after operations to * reset the scan chain -- via TMS+TCK signaling, or deasserting the @@ -203,15 +202,14 @@ enum jtag_event { JTAG_TAP_EVENT_DISABLE, }; -struct jtag_tap_event_action -{ - /// The event for which this action will be triggered. +struct jtag_tap_event_action { + /** The event for which this action will be triggered. */ enum jtag_event event; - /// The interpreter to use for evaluating the @c body. + /** The interpreter to use for evaluating the @c body. */ Jim_Interp *interp; - /// Contains a script to 'eval' when the @c event is triggered. + /** Contains a script to 'eval' when the @c event is triggered. */ Jim_Obj *body; - // next action in linked list + /* next action in linked list */ struct jtag_tap_event_action *next; }; @@ -226,7 +224,7 @@ struct jtag_tap_event_action * * @todo Change to return void or define a use for its return code. */ -typedef int (*jtag_event_handler_t)(enum jtag_event event, void* priv); +typedef int (*jtag_event_handler_t)(enum jtag_event event, void *priv); int jtag_register_event_callback(jtag_event_handler_t f, void *x); int jtag_unregister_event_callback(jtag_event_handler_t f, void *x); @@ -234,7 +232,7 @@ int jtag_unregister_event_callback(jtag_event_handler_t f, void *x); int jtag_call_event_callbacks(enum jtag_event event); -/// @returns The current JTAG speed setting. +/** @returns The current JTAG speed setting. */ int jtag_get_speed(int *speed); /** @@ -246,7 +244,7 @@ int jtag_get_speed(int *speed); */ int jtag_get_speed_readable(int *speed); -/// Attempt to configure the interface for the specified KHz. +/** Attempt to configure the interface for the specified KHz. */ int jtag_config_khz(unsigned khz); /** @@ -255,10 +253,9 @@ int jtag_config_khz(unsigned khz); */ int jtag_config_rclk(unsigned fallback_speed_khz); -/// Retreives the clock speed of the JTAG interface in KHz. +/** Retreives the clock speed of the JTAG interface in KHz. */ unsigned jtag_get_speed_khz(void); - enum reset_types { RESET_NONE = 0x0, RESET_HAS_TRST = 0x1, @@ -286,40 +283,39 @@ unsigned jtag_get_nsrst_assert_width(void); void jtag_set_ntrst_assert_width(unsigned delay); unsigned jtag_get_ntrst_assert_width(void); -/// @returns The current state of TRST. +/** @returns The current state of TRST. */ int jtag_get_trst(void); -/// @returns The current state of SRST. +/** @returns The current state of SRST. */ int jtag_get_srst(void); -/// Enable or disable data scan verification checking. +/** Enable or disable data scan verification checking. */ void jtag_set_verify(bool enable); -/// @returns True if data scan verification will be performed. +/** @returns True if data scan verification will be performed. */ bool jtag_will_verify(void); -/// Enable or disable verification of IR scan checking. +/** Enable or disable verification of IR scan checking. */ void jtag_set_verify_capture_ir(bool enable); -/// @returns True if IR scan verification will be performed. +/** @returns True if IR scan verification will be performed. */ bool jtag_will_verify_capture_ir(void); /** Initialize debug adapter upon startup. */ -int adapter_init(struct command_context* cmd_ctx); +int adapter_init(struct command_context *cmd_ctx); -/// Shutdown the debug adapter upon program exit. -int adapter_quit(void); +/** Shutdown the debug adapter upon program exit. */ +int adapter_quit(void); -/// Set ms to sleep after jtag_execute_queue() flushes queue. Debug -/// purposes. +/** Set ms to sleep after jtag_execute_queue() flushes queue. Debug purposes. */ void jtag_set_flush_queue_sleep(int ms); /** * Initialize JTAG chain using only a RESET reset. If init fails, * try reset + init. */ -int jtag_init(struct command_context* cmd_ctx); +int jtag_init(struct command_context *cmd_ctx); -/// reset, then initialize JTAG chain -int jtag_init_reset(struct command_context* cmd_ctx); -int jtag_register_commands(struct command_context* cmd_ctx); +/** reset, then initialize JTAG chain */ +int jtag_init_reset(struct command_context *cmd_ctx); +int jtag_register_commands(struct command_context *cmd_ctx); int jtag_init_inner(struct command_context *cmd_ctx); /** @@ -347,13 +343,13 @@ int jtag_init_inner(struct command_context *cmd_ctx); * subsequent DR SCANs. * */ -void jtag_add_ir_scan(struct jtag_tap* tap, - struct scan_field* fields, tap_state_t endstate); +void jtag_add_ir_scan(struct jtag_tap *tap, + struct scan_field *fields, tap_state_t endstate); /** * The same as jtag_add_ir_scan except no verification is performed out * the output values. */ -void jtag_add_ir_scan_noverify(struct jtag_tap* tap, +void jtag_add_ir_scan_noverify(struct jtag_tap *tap, const struct scan_field *fields, tap_state_t state); /** * Scan out the bits in ir scan mode. @@ -363,18 +359,17 @@ void jtag_add_ir_scan_noverify(struct jtag_tap* tap, void jtag_add_plain_ir_scan(int num_bits, const uint8_t *out_bits, uint8_t *in_bits, tap_state_t endstate); - /** * Generate a DR SCAN using the fields passed to the function. * For connected TAPs, the function checks in_fields and uses fields * specified there. For bypassed TAPs, the function generates a dummy * 1-bit field. The bypass status of TAPs is set by jtag_add_ir_scan(). */ -void jtag_add_dr_scan(struct jtag_tap* tap, int num_fields, - const struct scan_field* fields, tap_state_t endstate); -/// A version of jtag_add_dr_scan() that uses the check_value/mask fields -void jtag_add_dr_scan_check(struct jtag_tap* tap, int num_fields, - struct scan_field* fields, tap_state_t endstate); +void jtag_add_dr_scan(struct jtag_tap *tap, int num_fields, + const struct scan_field *fields, tap_state_t endstate); +/** A version of jtag_add_dr_scan() that uses the check_value/mask fields */ +void jtag_add_dr_scan_check(struct jtag_tap *tap, int num_fields, + struct scan_field *fields, tap_state_t endstate); /** * Scan out the bits in ir scan mode. * @@ -399,7 +394,7 @@ typedef intptr_t jtag_callback_data_t; */ typedef void (*jtag_callback1_t)(jtag_callback_data_t data0); -/// A simpler version of jtag_add_callback4(). +/** A simpler version of jtag_add_callback4(). */ void jtag_add_callback(jtag_callback1_t, jtag_callback_data_t data0); @@ -489,7 +484,7 @@ void jtag_add_tlr(void); * - ERROR_JTAG_TRANSITION_INVALID -- The path includes invalid * state transitions. */ -void jtag_add_pathmove(int num_states, const tap_state_t* path); +void jtag_add_pathmove(int num_states, const tap_state_t *path); /** * jtag_add_statemove() moves from the current state to @a goal_state. @@ -550,7 +545,6 @@ int jtag_add_tms_seq(unsigned nbits, const uint8_t *seq, enum tap_state t); */ void jtag_add_clocks(int num_cycles); - /** * For software FIFO implementations, the queued commands can be executed * during this call or earlier. A sw queue might decide to push out @@ -573,19 +567,18 @@ void jtag_add_clocks(int num_cycles); */ int jtag_execute_queue(void); -/// same as jtag_execute_queue() but does not clear the error flag +/** same as jtag_execute_queue() but does not clear the error flag */ void jtag_execute_queue_noclear(void); -/// @returns the number of times the scan queue has been flushed +/** @returns the number of times the scan queue has been flushed */ int jtag_get_flush_queue_count(void); -/// Report Tcl event to all TAPs +/** Report Tcl event to all TAPs */ void jtag_notify_event(enum jtag_event); - /* can be implemented by hw + sw */ -int jtag_power_dropout(int* dropout); -int jtag_srst_asserted(int* srst_asserted); +int jtag_power_dropout(int *dropout); +int jtag_srst_asserted(int *srst_asserted); /* JTAG support functions */ @@ -642,7 +635,6 @@ void jtag_sleep(uint32_t us); * clocking data back in. Patches gladly accepted! */ - /** * Set the current JTAG core execution error, unless one was set * by a previous call previously. Driver or application code must |