swd: get rid of jtag queue to assert/deassert srst

[fw/openocd] / src / jtag / drivers / buspirate.c

diff --git a/src/jtag/drivers/buspirate.c b/src/jtag/drivers/buspirate.c
index 872896ba3b82fccdbcbc664e66205f18a3bce94f..23d1547a97c70b3bb6ff7dc344bfc3517d6f0a8f 100644 (file)
--- a/src/jtag/drivers/buspirate.c
+++ b/src/jtag/drivers/buspirate.c
@@ -34,6 +34,7 @@
 static int buspirate_execute_queue(void);
 static int buspirate_init(void);
 static int buspirate_quit(void);
+static int buspirate_reset(int trst, int srst);
 
 static void buspirate_end_state(tap_state_t state);
 static void buspirate_state_move(void);
@@ -133,7 +134,6 @@ static void buspirate_tap_append_scan(int length, uint8_t *buffer,
                struct scan_command *command);
 static void buspirate_tap_make_space(int scan, int bits);
 
-static void buspirate_reset(int trst, int srst);
 static void buspirate_set_feature(int, char, char);
 static void buspirate_set_mode(int, char);
 static void buspirate_set_speed(int, char);
@@ -213,18 +213,6 @@ static int buspirate_execute_queue(void)
                                buffer, scan_size, cmd->cmd.scan);
 
                        break;
-               case JTAG_RESET:
-                       LOG_DEBUG_IO("reset trst: %i srst %i",
-                               cmd->cmd.reset->trst, cmd->cmd.reset->srst);
-
-                       /* flush buffers, so we can reset */
-                       buspirate_tap_execute();
-
-                       if (cmd->cmd.reset->trst == 1)
-                               tap_set_state(TAP_RESET);
-                       buspirate_reset(cmd->cmd.reset->trst,
-                                       cmd->cmd.reset->srst);
-                       break;
                case JTAG_SLEEP:
                        LOG_DEBUG_IO("sleep %i", cmd->cmd.sleep->us);
                        buspirate_tap_execute();
@@ -555,7 +543,8 @@ struct jtag_interface buspirate_interface = {
        .transports = buspirate_transports,
        .swd = &buspirate_swd,
        .init = buspirate_init,
-       .quit = buspirate_quit
+       .quit = buspirate_quit,
+       .reset = buspirate_reset,
 };
 
 /*************** jtag execute commands **********************/
@@ -860,7 +849,7 @@ static void buspirate_tap_append_scan(int length, uint8_t *buffer,
 /*************** wrapper functions *********************/
 
 /* (1) assert or (0) deassert reset lines */
-static void buspirate_reset(int trst, int srst)
+static int buspirate_reset(int trst, int srst)
 {
        LOG_DEBUG("trst: %i, srst: %i", trst, srst);
 
@@ -873,6 +862,8 @@ static void buspirate_reset(int trst, int srst)
                buspirate_set_feature(buspirate_fd, FEATURE_SRST, ACTION_DISABLE);
        else
                buspirate_set_feature(buspirate_fd, FEATURE_SRST, ACTION_ENABLE);
+
+       return ERROR_OK;
 }
 
 static void buspirate_set_feature(int fd, char feat, char action)