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added jtag_khz for use with target library 

git-svn-id: svn://svn.berlios.de/openocd/trunk@512 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2008-03-13 11:07:21 +00:00
parent 7de7bc80fc
commit 9bf081192f
2 changed files with 52 additions and 0 deletions
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50
src/jtag/jtag.c
View File

@ -234,6 +234,7 @@ int jtag_cancel_queue(void);
/* jtag commands */
int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
@ -1409,6 +1410,8 @@ int jtag_register_commands(struct command_context_s *cmd_ctx)
COMMAND_CONFIG, NULL);
register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
COMMAND_ANY, "set jtag speed (if supported) <reset speed> [<post reset speed, default value is reset speed>]");
register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
COMMAND_ANY, "same as jtag_speed, except it takes khz as arguments");
register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
@ -1499,6 +1502,12 @@ int jtag_init(struct command_context_s *cmd_ctx)
}
static int default_khz(int khz, int *jtag_speed)
{
ERROR("Translation from khz to jtag_speed not implemented");
return ERROR_FAIL;
}
int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int i;
@ -1524,6 +1533,11 @@ int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char
exit(-1);
jtag_interface = jtag_interfaces[i];
if (jtag_interface->khz == NULL)
{
jtag_interface->khz = default_khz;
}
return ERROR_OK;
}
}
@ -1713,6 +1727,42 @@ int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char
return ERROR_OK;
}
int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int cur_speed = 0;
int speed1, speed2;
if ((argc<1) || (argc>2))
return ERROR_COMMAND_SYNTAX_ERROR;
if (jtag == NULL)
{
ERROR("Interface not selected yet");
return ERROR_COMMAND_SYNTAX_ERROR;
}
if (argc >= 1)
speed1 = strtoul(args[0], NULL, 0);
if (argc == 2)
speed2 = strtoul(args[1], NULL, 0);
if (jtag->khz(speed1, &speed1)!=ERROR_OK)
return ERROR_OK;
if (jtag->khz(speed2, &speed2)!=ERROR_OK)
return ERROR_OK;
if (argc >= 1)
cur_speed = jtag_speed = jtag_speed_post_reset = speed1;
if (argc == 2)
cur_speed = jtag_speed_post_reset = speed2;
jtag->speed(cur_speed);
return ERROR_OK;
}
int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
enum tap_state state;

2
src/jtag/jtag.h
View File

@ -195,6 +195,8 @@ typedef struct jtag_interface_s
int (*register_commands)(struct command_context_s *cmd_ctx);
int (*init)(void);
int (*quit)(void);
/* returns JTAG speed for KHz. */
int (*khz)(int khz, int *jtag_speed);
} jtag_interface_t;