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jtag/drivers/buspirate: add JTAG_STABLECLOCKS cmd 

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Change-Id: Ied6f7d9b28131a7ac83b203e4c64d4e9ffec0595
Signed-off-by: Mateusz Manowiecki <segmentation@fault.pl>
Reviewed-on: http://openocd.zylin.com/2496
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
__archive__
Mateusz Manowiecki 2015-01-23 21:58:19 +01:00 committed by Paul Fertser
parent e3b43b77e9
commit ef0fa97a71
1 changed files with 15 additions and 0 deletions
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15
src/jtag/drivers/buspirate.c
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@ -42,6 +42,7 @@ static void buspirate_path_move(int num_states, tap_state_t *path);
static void buspirate_runtest(int num_cycles); static void buspirate_runtest(int num_cycles);
static void buspirate_scan(bool ir_scan, enum scan_type type, static void buspirate_scan(bool ir_scan, enum scan_type type,
uint8_t *buffer, int scan_size, struct scan_command *command); uint8_t *buffer, int scan_size, struct scan_command *command);
static void buspirate_stableclocks(int num_cycles);
#define CMD_UNKNOWN 0x00 #define CMD_UNKNOWN 0x00
#define CMD_PORT_MODE 0x01 #define CMD_PORT_MODE 0x01
@ -192,6 +193,10 @@ static int buspirate_execute_queue(void)
buspirate_tap_execute(); buspirate_tap_execute();
jtag_sleep(cmd->cmd.sleep->us); jtag_sleep(cmd->cmd.sleep->us);
break; break;
case JTAG_STABLECLOCKS:
DEBUG_JTAG_IO("stable clock %i cycles", cmd->cmd.stableclocks->num_cycles);
buspirate_stableclocks(cmd->cmd.stableclocks->num_cycles);
break;
default: default:
LOG_ERROR("BUG: unknown JTAG command type encountered"); LOG_ERROR("BUG: unknown JTAG command type encountered");
exit(-1); exit(-1);
@ -602,6 +607,16 @@ static void buspirate_scan(bool ir_scan, enum scan_type type,
buspirate_state_move(); buspirate_state_move();
} }
static void buspirate_stableclocks(int num_cycles)
{
int i;
int tms = (tap_get_state() == TAP_RESET ? 1 : 0);
buspirate_tap_make_space(0, num_cycles);
for (i = 0; i < num_cycles; i++)
buspirate_tap_append(tms, 0);
}
/************************* TAP related stuff **********/ /************************* TAP related stuff **********/