Initial MSP430X Port.

This port includes hal, pal, serial, and st drivers. It supports both
large and small model code and data for MSP430X-class CPUs. It has only
been tested on the EXP430FR5969 LaunchPad board.

1 files changed, 215 insertions, 0 deletions

diff --git a/os/hal/ports/MSP430X/hal_pal_lld.c b/os/hal/ports/MSP430X/hal_pal_lld.c
new file mode 100644
index 0000000..4cfff3b
--- /dev/null
+++ b/os/hal/ports/MSP430X/hal_pal_lld.c
@@ -0,0 +1,215 @@
+/*

+    ChibiOS - Copyright (C) 2016 Andrew Wygle aka awygle

+

+    Licensed under the Apache License, Version 2.0 (the "License");

+    you may not use this file except in compliance with the License.

+    You may obtain a copy of the License at

+

+        http://www.apache.org/licenses/LICENSE-2.0

+

+    Unless required by applicable law or agreed to in writing, software

+    distributed under the License is distributed on an "AS IS" BASIS,

+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+    See the License for the specific language governing permissions and

+    limitations under the License.

+*/

+

+/**

+ * @file    MSP430X/hal_pal_lld.c

+ * @brief   MSP430X PAL subsystem low level driver source.

+ *

+ * @addtogroup PAL

+ * @{

+ */

+

+#include "hal.h"

+

+#if (HAL_USE_PAL == TRUE) || defined(__DOXYGEN__)

+

+/*===========================================================================*/

+/* Driver local definitions.                                                 */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver exported variables.                                                */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver local variables and types.                                         */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver local functions.                                                   */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver interrupt handlers.                                                */

+/*===========================================================================*/

+

+/*===========================================================================*/

+/* Driver exported functions.                                                */

+/*===========================================================================*/

+

+/**

+ * @brief   MSP430X I/O ports configuration.

+ * @details GPIO registers initialization

+ *

+ * @param[in] config    the MSP430X ports configuration

+ *

+ * @notapi

+ */

+void _pal_lld_init(const PALConfig *config) {

+

+#if defined(PA_BASE) || defined(__DOXYGEN__)

+  PAOUT = config->porta.out;

+  PADIR = config->porta.dir;

+  PAREN = config->porta.ren;

+  PASEL0 = config->porta.sel0;

+  PASEL1 = config->porta.sel1;

+  PAIES = config->porta.ies;

+  PAIE = config->porta.ie;

+#endif

+#if defined(PB_BASE) || defined(__DOXYGEN__)

+  PBOUT = config->portb.out;

+  PBDIR = config->portb.dir;

+  PBREN = config->portb.ren;

+  PBSEL0 = config->portb.sel0;

+  PBSEL1 = config->portb.sel1;

+  PBIES = config->portb.ies;

+  PBIE = config->portb.ie;

+#endif

+#if defined(PC_BASE) || defined(__DOXYGEN__)

+  PCOUT = config->portc.out;

+  PCDIR = config->portc.dir;

+  PCREN = config->portc.ren;

+  PCSEL0 = config->portc.sel0;

+  PCSEL1 = config->portc.sel1;

+  PCIES = config->portc.ies;

+  PCIE = config->portc.ie;

+#endif

+#if defined(PD_BASE) || defined(__DOXYGEN__)

+  PDOUT = config->portd.out;

+  PDDIR = config->portd.dir;

+  PDREN = config->portd.ren;

+  PDSEL0 = config->portd.sel0;

+  PDSEL1 = config->portd.sel1;

+  PDIES = config->portd.ies;

+  PDIE = config->portd.ie;

+#endif

+#if defined(PE_BASE) || defined(__DOXYGEN__)

+  PEOUT = config->porte.out;

+  PEDIR = config->porte.dir;

+  PEREN = config->porte.ren;

+  PESEL0 = config->porte.sel0;

+  PESEL1 = config->porte.sel1;

+  PEIES = config->porte.ies;

+  PEIE = config->porte.ie;

+#endif

+#if defined(PF_BASE) || defined(__DOXYGEN__)

+  PFOUT = config->portf.out;

+  PFDIR = config->portf.dir;

+  PFREN = config->portf.ren;

+  PFSEL0 = config->portf.sel0;

+  PFSEL1 = config->portf.sel1;

+  PFIES = config->portf.ies;

+  PFIE = config->portf.ie;

+#endif

+  PJOUT = config->portj.out;

+  PJDIR = config->portj.dir;

+  PJREN = config->portj.ren;

+  PJSEL0 = config->portj.sel0;

+  PJSEL1 = config->portj.sel1;

+  

+  PM5CTL0 &= ~LOCKLPM5;

+}

+

+/**

+ * @brief   Pads mode setup.

+ * @details This function programs a pads group belonging to the same port

+ *          with the specified mode.

+ * @note    @p PAL_MODE_UNCONNECTED is implemented as input with pullup.

+ *

+ * @param[in] port      the port identifier

+ * @param[in] mask      the group mask

+ * @param[in] mode      the mode

+ *

+ * @notapi

+ */

+void _pal_lld_setgroupmode(ioportid_t port,

+                           ioportmask_t mask,

+                           iomode_t mode) {

+  

+  switch (mode) {

+    case PAL_MODE_RESET:

+    case PAL_MODE_INPUT:

+      port->dir &= ~mask;

+      port->ren &= ~mask;

+      if ((port->sel0 & mask) && (port->sel1 & mask))

+        port->selc = mask;

+      else {

+        port->sel0 &= ~mask;

+        port->sel1 &= ~mask;

+      }

+      break;

+    case PAL_MODE_UNCONNECTED:

+    case PAL_MODE_INPUT_PULLUP:

+      port->dir &= ~mask;

+      port->ren |= mask;

+      port->out |= mask;

+      if ((port->sel0 & mask) && (port->sel1 & mask))

+        port->selc = mask;

+      else {

+        port->sel0 &= ~mask;

+        port->sel1 &= ~mask;

+      }

+      break;

+    case PAL_MODE_INPUT_PULLDOWN:

+      port->dir &= ~mask;

+      port->ren |= mask;

+      port->out &= ~mask;

+      if ((port->sel0 & mask) && (port->sel1 & mask))

+        port->selc = mask;

+      else {

+        port->sel0 &= ~mask;

+        port->sel1 &= ~mask;

+      }

+      break;

+    case PAL_MODE_OUTPUT_PUSHPULL:

+      port->dir |= mask;

+      if ((port->sel0 & mask) && (port->sel1 & mask))

+        port->selc = mask;

+      else {

+        port->sel0 &= ~mask;

+        port->sel1 &= ~mask;

+      }

+      break;

+    case PAL_MSP430X_ALTERNATE_1:

+      if (!(port->sel0 & mask) && (port->sel1 & mask)) 

+        port->selc = mask;

+      else {

+        port->sel0 |= mask;

+        port->sel1 &= ~mask;

+      }

+      break;

+    case PAL_MSP430X_ALTERNATE_2:

+      if ((port->sel0 & mask) && !(port->sel1 & mask))

+        port->selc = mask;

+      else {

+        port->sel0 &= ~mask;

+        port->sel1 |= mask;

+      }

+      break;

+    case PAL_MSP430X_ALTERNATE_3:

+      if (!(port->sel0 & mask) && !(port->sel1 & mask))

+        port->selc = mask;

+      else {

+        port->sel0 |= mask;

+        port->sel1 |= mask;

+      }

+      break;

+  }

+}

+

+#endif /* HAL_USE_PAL == TRUE */

+

+/** @} */