cmsis: implement srst_set_val()

src/platforms/hosted/cmsis_dap.c

@@ -135,6 +135,11 @@ int dap_init(bmp_info_t *info)
 	return 0;
 }
 
+void dap_srst_set_val(bool assert)
+{
+	dap_reset_pin(!assert);
+}
+
 static void dap_dp_abort(ADIv5_DP_t *dp, uint32_t abort)
 {
 	/* DP Write to Reg 0.*/

src/platforms/hosted/cmsis_dap.h

@@ -31,6 +31,7 @@ int dap_swdptap_init(ADIv5_DP_t *dp);
 int dap_jtag_dp_init(ADIv5_DP_t *dp);
 uint32_t dap_swj_clock(uint32_t clock);
 void dap_swd_configure(uint8_t cfg);
+void dap_srst_set_val(bool assert);
 #else
 int dap_init(bmp_info_t *info)
 {
@@ -47,6 +48,7 @@ int cmsis_dap_jtagtap_init(jtag_proc_t *jtag_proc) {return -1;}
 int dap_swdptap_init(ADIv5_DP_t *dp) {return -1;}
 int dap_jtag_dp_init(ADIv5_DP_t *dp) {return -1;}
 void dap_swd_configure(uint8_t cfg) {};
+void dap_srst_set_val(assert) {};
 # pragma GCC diagnostic pop
 
 #endif

src/platforms/hosted/dap.c

@@ -200,7 +200,7 @@ void dap_disconnect(void)
 	uint8_t buf[65];
 
 	buf[0] = ID_DAP_DISCONNECT;
-	dbg_dap_cmd(buf, sizeof(buf), 65);
+	dbg_dap_cmd(buf, sizeof(buf), 1);
 }
 
 static uint32_t swj_clock;
@@ -277,10 +277,7 @@ void dap_reset_pin(int state)
 	buf[1] = state ? DAP_SWJ_nRESET : 0; // Value
 	buf[2] = DAP_SWJ_nRESET; // Select
 	buf[3] = 0; // Wait
-	buf[4] = 0;
+	dbg_dap_cmd(buf, sizeof(buf), 4);
-	buf[5] = 0;
-	buf[6] = 0;
-	dbg_dap_cmd(buf, sizeof(buf), 7);
 }
 
 void dap_trst_reset(void)

src/platforms/hosted/dap.h

@@ -69,6 +69,7 @@ void dap_transfer_configure(uint8_t idle, uint16_t count, uint16_t retry);
 void dap_swd_configure(uint8_t cfg);
 int dap_info(int info, uint8_t *data, int size);
 void dap_reset_target(void);
+void dap_srst_set_val(bool assert);
 void dap_trst_reset(void);
 void dap_reset_target_hw(int state);
 void dap_reset_pin(int state);

src/platforms/hosted/platform.c

@@ -292,6 +292,8 @@ void platform_srst_set_val(bool assert)
 		return jlink_srst_set_val(&info, assert);
 	case BMP_TYPE_LIBFTDI:
 		return libftdi_srst_set_val(assert);
+	case BMP_TYPE_CMSIS_DAP:
+		return dap_srst_set_val(assert);
 	default:
 		break;
 	}