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Add header file for JTAG minidriver: 

- Wraps all minidriver API functions using API front-ends:
  - Outlines jtag_add_dr_out() and jtag_alloc_in_value32().
  - Adds interface_ prefix to existing jtag_alloc_invalue_32 routines.
  - Re-inline these interface definitions in new header file.
- Re-inline parts of the (mini)driver implementations in minidriver.h.
- Replace INCLUDE_JTAG_MINIDRIVER_H with #include directives.

The next patch will finish removing '#ifdef HAVE_JTAG_MINIDRIVER_H'
from jtag.h.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2006 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
zwelch 2009-06-02 23:15:12 +00:00
parent 7dc29156fe
commit a546729609
6 changed files with 151 additions and 102 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/jtag/Makefile.am
View File

@ -136,6 +136,7 @@ libjtag_la_SOURCES = \
$(ARMJTAGEWFILES)
noinst_HEADERS = \
minidriver.h \
bitbang.h \
jtag.h \
bitq.h \

19
src/jtag/jtag.c
View File

@ -28,9 +28,9 @@
#include "config.h"
#endif
#define INCLUDE_JTAG_MINIDRIVER_H
#define INCLUDE_JTAG_INTERFACE_H
#include "jtag.h"
#include "minidriver.h"
#ifdef HAVE_STRINGS_H
#include <strings.h>
@ -526,6 +526,11 @@ static void jtag_prelude(tap_state_t state)
cmd_queue_cur_state = cmd_queue_end_state;
}
void jtag_alloc_in_value32(scan_field_t *field)
{
interface_jtag_alloc_in_value32(field);
}
void jtag_add_ir_scan_noverify(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
{
int retval;
@ -682,7 +687,19 @@ void jtag_add_plain_dr_scan(int in_num_fields, const scan_field_t *in_fields, ta
jtag_error=retval;
}
void jtag_add_dr_out(jtag_tap_t* tap,
int num_fields, const int* num_bits, const u32* value,
tap_state_t end_state)
{
if (end_state != TAP_INVALID)
cmd_queue_end_state = end_state;
cmd_queue_cur_state = cmd_queue_end_state;
interface_jtag_add_dr_out(tap,
num_fields, num_bits, value,
cmd_queue_end_state);
}
void jtag_add_tlr(void)
{

78
src/jtag/jtag.h
View File

@ -585,17 +585,7 @@ extern void jtag_add_dr_scan(int num_fields, const scan_field_t* fields, tap_sta
* allocation method is used, for the synchronous case the temporary 32 bits come
* from the input field itself.
*/
#ifndef HAVE_JTAG_MINIDRIVER_H
extern void jtag_alloc_in_value32(scan_field_t *field);
#else
static __inline__ void jtag_alloc_in_value32(scan_field_t *field)
{
field->in_value=field->intmp;
}
#endif
/* This version of jtag_add_dr_scan() uses the check_value/mask fields */
extern void jtag_add_dr_scan_check(int num_fields, scan_field_t* fields, tap_state_t endstate);
@ -841,61 +831,6 @@ void jtag_tap_handle_event(jtag_tap_t* tap, enum jtag_tap_event e);
#define ERROR_JTAG_NOT_STABLE_STATE (-105)
#define ERROR_JTAG_DEVICE_ERROR (-107)
#ifdef INCLUDE_JTAG_MINIDRIVER_H
extern void interface_jtag_add_scan_check_alloc(scan_field_t *field);
extern int interface_jtag_add_ir_scan(
int num_fields, const scan_field_t* fields,
tap_state_t endstate);
extern int interface_jtag_add_plain_ir_scan(
int num_fields, const scan_field_t* fields,
tap_state_t endstate);
extern int interface_jtag_add_dr_scan(
int num_fields, const scan_field_t* fields,
tap_state_t endstate);
extern int interface_jtag_add_plain_dr_scan(
int num_fields, const scan_field_t* fields,
tap_state_t endstate);
extern int interface_jtag_add_tlr(void);
extern int interface_jtag_add_pathmove(int num_states, const tap_state_t* path);
extern int interface_jtag_add_runtest(int num_cycles, tap_state_t endstate);
/**
* This drives the actual srst and trst pins. srst will always be 0
* if jtag_reset_config & RESET_SRST_PULLS_TRST != 0 and ditto for
* trst.
*
* the higher level jtag_add_reset will invoke jtag_add_tlr() if
* approperiate
*/
extern int interface_jtag_add_reset(int trst, int srst);
extern int interface_jtag_add_end_state(tap_state_t endstate);
extern int interface_jtag_add_sleep(u32 us);
extern int interface_jtag_add_clocks(int num_cycles);
extern int interface_jtag_execute_queue(void);
/**
* Calls the interface callback to execute the queue. This routine
* is used by the JTAG driver layer and should not be called directly.
*/
extern int default_interface_jtag_execute_queue(void);
#endif // INCLUDE_JTAG_MINIDRIVER_H
/* this allows JTAG devices to implement the entire jtag_xxx() layer in hw/sw */
#ifdef HAVE_JTAG_MINIDRIVER_H
/* Here a #define MINIDRIVER() and an inline version of hw fifo interface_jtag_add_dr_out can be defined */
#include "jtag_minidriver.h"
#else
extern void interface_jtag_add_dr_out(jtag_tap_t* tap, int num_fields, const int* num_bits, const u32* value,
tap_state_t end_state);
#endif
/* jtag_add_dr_out() is a version of jtag_add_dr_scan() which
* only scans data out. It operates on 32 bit integers instead
* of 8 bit, which makes it a better impedance match with
@ -921,16 +856,9 @@ extern void interface_jtag_add_dr_out(jtag_tap_t* tap, int num_fields, const int
* There is no jtag_add_dr_outin() version of this fn that also allows
* clocking data back in. Patches gladly accepted!
*/
static __inline__ void jtag_add_dr_out(jtag_tap_t* tap, int num_fields, const int* num_bits, const u32* value,
tap_state_t end_state)
{
if (end_state != TAP_INVALID)
cmd_queue_end_state = end_state;
cmd_queue_cur_state = cmd_queue_end_state;
interface_jtag_add_dr_out(tap, num_fields, num_bits, value, cmd_queue_end_state);
}
extern void jtag_add_dr_out(jtag_tap_t* tap,
int num_fields, const int* num_bits, const u32* value,
tap_state_t end_state);
/**

13
src/jtag/jtag_driver.c
View File

@ -31,9 +31,9 @@
#include "config.h"
#endif
#define INCLUDE_JTAG_MINIDRIVER_H
#define INCLUDE_JTAG_INTERFACE_H
#include "jtag.h"
#include "minidriver.h"
#include "command.h"
struct jtag_callback_entry
@ -488,12 +488,6 @@ void jtag_add_callback4(jtag_callback_t callback, u8 *in, jtag_callback_data_t d
}
}
void interface_jtag_add_scan_check_alloc(scan_field_t *field)
{
unsigned num_bytes = TAP_SCAN_BYTES(field->num_bits);
field->in_value = (u8 *)cmd_queue_alloc(num_bytes);
}
int interface_jtag_execute_queue(void)
{
int retval = default_interface_jtag_execute_queue();
@ -514,11 +508,6 @@ int interface_jtag_execute_queue(void)
return retval;
}
void jtag_alloc_in_value32(scan_field_t *field)
{
field->in_value=(u8 *)cmd_queue_alloc(4);
}
static int jtag_convert_to_callback4(u8 *in, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
{
((jtag_callback1_t)data1)(in);

127
src/jtag/minidriver.h Normal file
View File

@ -0,0 +1,127 @@
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2009 Zachary T Welch *
* zw@superlucidity.net *
* *
* 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. *
***************************************************************************/
#ifndef MINIDRIVER_H
#define MINIDRIVER_H
/* @page jtagminidriver JTAG Mini-Driver
*
* The JTAG minidriver interface allows the definition of alternate
* interface functions, instead of the built-in asynchronous driver
* module that is used by the standard JTAG interface drivers.
*
* In addtion to the functions defined in the c minidriver.h file, the
* @c jtag_minidriver.h file must declare the following functions (or
* define static inline versions of them):
* - jtag_add_callback
* - jtag_add_callback4
* - interface_jtag_add_dr_out
*
* The following core functions are declared in this file for use by
* the minidriver and do @b not need to be defined by an implementation:
* - default_interface_jtag_execute_queue()
*/
#ifdef HAVE_JTAG_MINIDRIVER_H
#include "jtag_minidriver.h"
static inline void interface_jtag_alloc_in_value32(scan_field_t *field)
{
field->in_value = field->intmp;
}
static inline void interface_jtag_add_scan_check_alloc(scan_field_t *field)
{
/* We're executing this synchronously, so try to use local storage. */
if (field->num_bits > 32)
{
unsigned num_bytes = TAP_SCAN_BYTES(field->num_bits);
field->in_value = (u8 *)malloc(num_bytes);
field->allocated = 1;
}
else
field->in_value = field->intmp;
}
#else
static inline void interface_jtag_alloc_in_value32(scan_field_t *field)
{
field->in_value = (u8 *)cmd_queue_alloc(4);
}
static inline void interface_jtag_add_scan_check_alloc(scan_field_t *field)
{
unsigned num_bytes = TAP_SCAN_BYTES(field->num_bits);
field->in_value = (u8 *)cmd_queue_alloc(num_bytes);
}
extern void interface_jtag_add_dr_out(jtag_tap_t* tap,
int num_fields, const int* num_bits, const u32* value,
tap_state_t end_state);
#endif
extern int interface_jtag_add_ir_scan(
int num_fields, const scan_field_t* fields,
tap_state_t endstate);
extern int interface_jtag_add_plain_ir_scan(
int num_fields, const scan_field_t* fields,
tap_state_t endstate);
extern int interface_jtag_add_dr_scan(
int num_fields, const scan_field_t* fields,
tap_state_t endstate);
extern int interface_jtag_add_plain_dr_scan(
int num_fields, const scan_field_t* fields,
tap_state_t endstate);
extern int interface_jtag_add_tlr(void);
extern int interface_jtag_add_pathmove(int num_states, const tap_state_t* path);
extern int interface_jtag_add_runtest(int num_cycles, tap_state_t endstate);
/**
* This drives the actual srst and trst pins. srst will always be 0
* if jtag_reset_config & RESET_SRST_PULLS_TRST != 0 and ditto for
* trst.
*
* the higher level jtag_add_reset will invoke jtag_add_tlr() if
* approperiate
*/
extern int interface_jtag_add_reset(int trst, int srst);
extern int interface_jtag_add_end_state(tap_state_t endstate);
extern int interface_jtag_add_sleep(u32 us);
extern int interface_jtag_add_clocks(int num_cycles);
extern int interface_jtag_execute_queue(void);
/**
* Calls the interface callback to execute the queue. This routine
* is used by the JTAG driver layer and should not be called directly.
*/
extern int default_interface_jtag_execute_queue(void);
#endif // MINIDRIVER_H

15
src/jtag/zy1000.c
View File

@ -20,9 +20,9 @@
#include "config.h"
#endif
#define INCLUDE_JTAG_MINIDRIVER_H
#define INCLUDE_JTAG_INTERFACE_H
#include "embeddedice.h"
#include "minidriver.h"
#include "bitbang.h"
#include <cyg/hal/hal_io.h> // low level i/o
@ -380,19 +380,6 @@ int zy1000_quit(void)
}
void interface_jtag_add_scan_check_alloc(scan_field_t *field)
{
/* We're executing this synchronously, so try to use local storage. */
if (field->num_bits > 32)
{
unsigned num_bytes = TAP_SCAN_BYTES(field->num_bits);
field->in_value = (u8 *)malloc(num_bytes);
field->allocated = 1;
}
else
field->in_value = field->intmp;
}
int interface_jtag_execute_queue(void)
{