MSP430 HAL integration

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1375 35acf78f-673a-0410-8e92-d51de3d6d3f4

2 files changed, 195 insertions, 0 deletions

diff --git a/os/hal/platforms/MSP430/hal_lld.c b/os/hal/platforms/MSP430/hal_lld.c
new file mode 100644
index 000000000..b8ca618d7
--- /dev/null
+++ b/os/hal/platforms/MSP430/hal_lld.c
@@ -0,0 +1,96 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT is free software; you can redistribute it and/or modify

+    it under the terms of the GNU General Public License as published by

+    the Free Software Foundation; either version 3 of the License, or

+    (at your option) any later version.

+

+    ChibiOS/RT is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+    GNU General Public License for more details.

+

+    You should have received a copy of the GNU General Public License

+    along with this program.  If not, see <http://www.gnu.org/licenses/>.

+*/

+

+/**

+ * @file MSP430/hal_lld.c

+ * @brief MSP430 HAL subsystem low level driver source

+ * @addtogroup MSP430_HAL

+ * @{

+ */

+

+#include "ch.h"

+#include "hal.h"

+

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

+/* Low Level Driver exported variables.                                      */

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

+

+/*

+ * Digital I/O ports static configuration as defined in @p board.h.

+ */

+const MSP430DIOConfig pal_default_config =

+{

+#if defined(__MSP430_HAS_PORT1__) || defined(__MSP430_HAS_PORT1_R__)

+  {VAL_P1OUT, VAL_P1DIR},

+#endif

+#if defined(__MSP430_HAS_PORT2__) || defined(__MSP430_HAS_PORT2_R__)

+  {VAL_P2OUT, VAL_P2DIR},

+#endif

+#if defined(__MSP430_HAS_PORT3__) || defined(__MSP430_HAS_PORT3_R__)

+  {VAL_P3OUT, VAL_P3DIR},

+#endif

+#if defined(__MSP430_HAS_PORT4__) || defined(__MSP430_HAS_PORT4_R__)

+  {VAL_P4OUT, VAL_P4DIR},

+#endif

+#if defined(__MSP430_HAS_PORT5__) || defined(__MSP430_HAS_PORT5_R__)

+  {VAL_P5OUT, VAL_P5DIR},

+#endif

+#if defined(__MSP430_HAS_PORT6__) || defined(__MSP430_HAS_PORT6_R__)

+  {VAL_P6OUT, VAL_P6DIR},

+#endif

+};

+

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

+/* Low Level Driver local variables.                                         */

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

+

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

+/* Low Level Driver local functions.                                         */

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

+

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

+/* Low Level Driver interrupt handlers.                                      */

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

+

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

+/* Low Level Driver exported functions.                                      */

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

+

+/**

+ * @brief Low level HAL driver initialization.

+ */

+void hal_lld_init(void) {

+

+  /*

+   * Clock sources setup.

+   */

+  DCOCTL  = VAL_DCOCTL;

+  BCSCTL1 = VAL_BCSCTL1;

+#if MSP430_USE_CLOCK == MSP430_CLOCK_SOURCE_XT2CLK

+  do {

+    int i;

+    IFG1 &= ~OFIFG;

+     for (i = 255; i > 0; i--)

+       asm("nop");

+  } while (IFG1 & OFIFG);

+#endif

+  BCSCTL2 = VAL_BCSCTL2;

+}

+

+/** @} */

diff --git a/os/hal/platforms/MSP430/hal_lld.h b/os/hal/platforms/MSP430/hal_lld.h
new file mode 100644
index 000000000..07c5863eb
--- /dev/null
+++ b/os/hal/platforms/MSP430/hal_lld.h
@@ -0,0 +1,99 @@
+/*

+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.

+

+    This file is part of ChibiOS/RT.

+

+    ChibiOS/RT is free software; you can redistribute it and/or modify

+    it under the terms of the GNU General Public License as published by

+    the Free Software Foundation; either version 3 of the License, or

+    (at your option) any later version.

+

+    ChibiOS/RT is distributed in the hope that it will be useful,

+    but WITHOUT ANY WARRANTY; without even the implied warranty of

+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+    GNU General Public License for more details.

+

+    You should have received a copy of the GNU General Public License

+    along with this program.  If not, see <http://www.gnu.org/licenses/>.

+*/

+

+/**

+ * @file MSP430/hal_lld.h

+ * @brief MSP430 HAL subsystem low level driver header.

+ * @addtogroup MSP430_HAL

+ * @{

+ */

+

+#ifndef _HAL_LLD_H_

+#define _HAL_LLD_H_

+

+#include "msp430x16x.h"

+

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

+/* Driver constants.                                                         */

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

+

+#define MSP430_CLOCK_SOURCE_XT2CLK  0   /** @brief XT2CLK clock selector.   */

+#define MSP430_CLOCK_SOURCE_DCOCLK  1   /** @brief DCOCLK clock selector.   */

+

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

+/* Driver pre-compile time settings.                                         */

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

+

+/**

+ * @brief Clock source.

+ * @details The clock source can be selected from:

+ * - @p MSP430_CLOCK_SOURCE_XT2CLK.

+ * - @p MSP430_CLOCK_SOURCE_DCOCLK.

+ * .
+ */

+#if !defined(MSP430_USE_CLOCK) || defined(__DOXYGEN__)

+#define MSP430_USE_CLOCK            MSP430_CLOCK_SOURCE_XT2CLK

+#endif

+

+/*

+ * Calculating the derived clock constants.
+ */

+#define ACLK                        LFXT1CLK

+#if MSP430_USE_CLOCK == MSP430_CLOCK_SOURCE_XT2CLK

+#define MCLK                        XT2CLK

+#define SMCLK                       (XT2CLK / 8)

+#elif MSP430_USE_CLOCK == MSP430_CLOCK_SOURCE_DCOCLK

+#define MCLK                        DCOCLK

+#define SMCLK                       DCOCLK

+#else

+#error "unknown clock source specified"

+#endif

+

+/*

+ * Calculating the initialization values.
+ */

+#define VAL_DCOCTL                  (DCO0 | DCO1)

+#if MSP430_USE_CLOCK == MSP430_CLOCK_SOURCE_XT2CLK

+#define VAL_BCSCTL1                 (RSEL2)

+#define VAL_BCSCTL2                 (SELM_2 | DIVM_0 | DIVS_3 | SELS)

+#endif

+#if MSP430_USE_CLOCK == MSP430_CLOCK_SOURCE_DCOCLK

+#define VAL_BCSCTL1                 (XT2OFF | RSEL2)

+#define VAL_BCSCTL2                 (SELM_0 | DIVM_0 | DIVS_0)

+#endif

+

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

+/* Driver data structures and types.                                         */

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

+

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

+/* External declarations.                                                    */

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

+

+#ifdef __cplusplus

+extern "C" {

+#endif

+  void hal_lld_init(void);

+#ifdef __cplusplus

+}

+#endif

+

+#endif /* _HAL_LLD_H_ */

+

+/** @} */