Added support for EA LPCXpresso LPC1769 board and LPC17xx drivers for

adc, i2c, serial, spi, rtc, pal, gpt and dma.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6736 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 208 insertions, 0 deletions

diff --git a/os/hal/platforms/LPC17xx/gpt_lld.h b/os/hal/platforms/LPC17xx/gpt_lld.h
new file mode 100644
index 000000000..09304536e
--- /dev/null
+++ b/os/hal/platforms/LPC17xx/gpt_lld.h
@@ -0,0 +1,208 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+    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    LPC17xx/gpt_lld.h
+ * @brief   LPC17xx GPT subsystem low level driver header.
+ *
+ * @addtogroup GPT
+ * @{
+ */
+
+#ifndef _GPT_LLD_H_
+#define _GPT_LLD_H_
+
+#if HAL_USE_GPT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   GPT1 driver enable switch.
+ * @details If set to @p TRUE the support for GPT1 is included.
+ * @note    The default is @p TRUE.
+ */
+#if !defined(LPC17xx_GPT_USE_TIM0) || defined(__DOXYGEN__)
+#define LPC17xx_GPT_USE_TIM0              TRUE
+#endif
+
+/**
+ * @brief   GPT2 driver enable switch.
+ * @details If set to @p TRUE the support for GPT2 is included.
+ * @note    The default is @p TRUE.
+ */
+#if !defined(LPC17xx_GPT_USE_TIM1) || defined(__DOXYGEN__)
+#define LPC17xx_GPT_USE_TIM1              TRUE
+#endif
+
+/**
+ * @brief   GPT3 driver enable switch.
+ * @details If set to @p TRUE the support for GPT3 is included.
+ * @note    The default is @p TRUE.
+ */
+#if !defined(LPC17xx_GPT_USE_TIM2) || defined(__DOXYGEN__)
+#define LPC17xx_GPT_USE_TIM2              TRUE
+#endif
+
+/**
+ * @brief   GPT4 driver enable switch.
+ * @details If set to @p TRUE the support for GPT4 is included.
+ * @note    The default is @p TRUE.
+ */
+#if !defined(LPC17xx_GPT_USE_TIM3) || defined(__DOXYGEN__)
+#define LPC17xx_GPT_USE_TIM3              TRUE
+#endif
+
+/**
+ * @brief   GPT1 interrupt priority level setting.
+ */
+#if !defined(LPC17xx_GPT_TIM0_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC17xx_GPT_TIM0_IRQ_PRIORITY     2
+#endif
+
+/**
+ * @brief   GPT2 interrupt priority level setting.
+ */
+#if !defined(LPC17xx_GPT_TIM1_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC17xx_GPT_TIM1_IRQ_PRIORITY     2
+#endif
+
+/**
+ * @brief   GPT3 interrupt priority level setting.
+ */
+#if !defined(LPC17xx_GPT_TIM2_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC17xx_GPT_TIM2_IRQ_PRIORITY     2
+#endif
+
+/**
+ * @brief   GPT4 interrupt priority level setting.
+ */
+#if !defined(LPC17xx_GPT_TIM3_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC17xx_GPT_TIM3_IRQ_PRIORITY     2
+#endif
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+#if !LPC17xx_GPT_USE_TIM0 && !LPC17xx_GPT_USE_TIM1 &&                   \
+    !LPC17xx_GPT_USE_TIM2 && !LPC17xx_GPT_USE_TIM3
+#error "GPT driver activated but no CT peripheral assigned"
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   GPT frequency type.
+ */
+typedef uint32_t gptfreq_t;
+
+/**
+ * @brief   GPT counter type.
+ */
+typedef uint32_t gptcnt_t;
+
+/**
+ * @brief   Driver configuration structure.
+ * @note    It could be empty on some architectures.
+ */
+typedef struct {
+  /**
+   * @brief   Timer clock in Hz.
+   * @note    The low level can use assertions in order to catch invalid
+   *          frequency specifications.
+   */
+  gptfreq_t                 frequency;
+  /**
+   * @brief   Timer callback pointer.
+   * @note    This callback is invoked on GPT counter events.
+   */
+  gptcallback_t             callback;
+  /* End of the mandatory fields.*/
+} GPTConfig;
+
+/**
+ * @brief   Structure representing a GPT driver.
+ */
+struct GPTDriver {
+  /**
+   * @brief Driver state.
+   */
+  gptstate_t                state;
+  /**
+   * @brief Current configuration data.
+   */
+  const GPTConfig           *config;
+  /* End of the mandatory fields.*/
+  /**
+   * @brief Timer base clock.
+   */
+  uint32_t                  clock;
+  /**
+   * @brief Pointer to the CTxxBy registers block.
+   */
+  LPC_TIM_TypeDef           *tmr;
+};
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#if LPC17xx_GPT_USE_TIM0 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD1;
+#endif
+
+#if LPC17xx_GPT_USE_TIM1 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD2;
+#endif
+
+#if LPC17xx_GPT_USE_TIM2 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD3;
+#endif
+
+#if LPC17xx_GPT_USE_TIM3 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD4;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void gpt_lld_init(void);
+  void gpt_lld_start(GPTDriver *gptp);
+  void gpt_lld_stop(GPTDriver *gptp);
+  void gpt_lld_start_timer(GPTDriver *gptp, gptcnt_t period);
+  void gpt_lld_stop_timer(GPTDriver *gptp);
+  void gpt_lld_polled_delay(GPTDriver *gptp, gptcnt_t interval);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_GPT */
+
+#endif /* _GPT_LLD_H_ */
+
+/** @} */