diff options
Diffstat (limited to 'os/hal/platforms/LPC13xx')
| -rw-r--r-- | os/hal/platforms/LPC13xx/core_cm3.h | 3 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/gpt_lld.c | 342 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/gpt_lld.h | 212 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/hal_lld.c | 3 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/hal_lld.h | 3 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/pal_lld.c | 3 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/pal_lld.h | 3 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/platform.dox | 63 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/platform.mk | 1 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/serial_lld.c | 3 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/serial_lld.h | 3 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/spi_lld.c | 103 | ||||
| -rw-r--r-- | os/hal/platforms/LPC13xx/spi_lld.h | 35 |
13 files changed, 680 insertions, 97 deletions
diff --git a/os/hal/platforms/LPC13xx/core_cm3.h b/os/hal/platforms/LPC13xx/core_cm3.h index 5c75ec859..387221bc6 100644 --- a/os/hal/platforms/LPC13xx/core_cm3.h +++ b/os/hal/platforms/LPC13xx/core_cm3.h @@ -1,5 +1,6 @@ /*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
diff --git a/os/hal/platforms/LPC13xx/gpt_lld.c b/os/hal/platforms/LPC13xx/gpt_lld.c new file mode 100644 index 000000000..7d6961889 --- /dev/null +++ b/os/hal/platforms/LPC13xx/gpt_lld.c @@ -0,0 +1,342 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 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 LPC13xx/gpt_lld.c
+ * @brief LPC13xx GPT subsystem low level driver source.
+ *
+ * @addtogroup GPT
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_GPT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/**
+ * @brief GPT1 driver identifier.
+ * @note The driver GPT1 allocates the complex timer CT16B0 when enabled.
+ */
+#if LPC13xx_GPT_USE_CT16B0 || defined(__DOXYGEN__)
+GPTDriver GPTD1;
+#endif
+
+/**
+ * @brief GPT2 driver identifier.
+ * @note The driver GPT2 allocates the timer CT16B1 when enabled.
+ */
+#if LPC13xx_GPT_USE_CT16B1 || defined(__DOXYGEN__)
+GPTDriver GPTD2;
+#endif
+
+/**
+ * @brief GPT3 driver identifier.
+ * @note The driver GPT3 allocates the timer CT32B0 when enabled.
+ */
+#if LPC13xx_GPT_USE_CT32B0 || defined(__DOXYGEN__)
+GPTDriver GPTD3;
+#endif
+
+/**
+ * @brief GPT4 driver identifier.
+ * @note The driver GPT4 allocates the timer CT32B1 when enabled.
+ */
+#if LPC13xx_GPT_USE_CT32B1 || defined(__DOXYGEN__)
+GPTDriver GPTD4;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Shared IRQ handler.
+ *
+ * @param[in] gptp pointer to a @p GPTDriver object
+ */
+static void gpt_lld_serve_interrupt(GPTDriver *gptp) {
+
+ gptp->tmr->IR = 1; /* Clear interrupt on match MR0.*/
+ if (gptp->state == GPT_ONESHOT) {
+ gptp->state = GPT_READY; /* Back in GPT_READY state. */
+ gpt_lld_stop_timer(gptp); /* Timer automatically stopped. */
+ }
+ gptp->config->callback(gptp);
+}
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+#if LPC13xx_GPT_USE_CT16B0
+/**
+ * @brief CT16B0 interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorE4) {
+
+ CH_IRQ_PROLOGUE();
+
+ gpt_lld_serve_interrupt(&GPTD1);
+
+ CH_IRQ_EPILOGUE();
+}
+#endif /* LPC13xx_GPT_USE_CT16B0 */
+
+#if LPC13xx_GPT_USE_CT16B1
+/**
+ * @brief CT16B1 interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorE8) {
+
+ CH_IRQ_PROLOGUE();
+
+ gpt_lld_serve_interrupt(&GPTD2);
+
+ CH_IRQ_EPILOGUE();
+}
+#endif /* LPC13xx_GPT_USE_CT16B0 */
+
+#if LPC13xx_GPT_USE_CT32B0
+/**
+ * @brief CT32B0 interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorEC) {
+
+ CH_IRQ_PROLOGUE();
+
+ gpt_lld_serve_interrupt(&GPTD3);
+
+ CH_IRQ_EPILOGUE();
+}
+#endif /* LPC13xx_GPT_USE_CT32B0 */
+
+#if LPC13xx_GPT_USE_CT32B1
+/**
+ * @brief CT32B1 interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorF0) {
+
+ CH_IRQ_PROLOGUE();
+
+ gpt_lld_serve_interrupt(&GPTD4);
+
+ CH_IRQ_EPILOGUE();
+}
+#endif /* LPC13xx_GPT_USE_CT32B1 */
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level GPT driver initialization.
+ *
+ * @notapi
+ */
+void gpt_lld_init(void) {
+
+#if LPC13xx_GPT_USE_CT16B0
+ /* Driver initialization.*/
+ GPTD1.tmr = LPC_TMR16B0;
+ gptObjectInit(&GPTD1);
+#endif
+
+#if LPC13xx_GPT_USE_CT16B1
+ /* Driver initialization.*/
+ GPTD2.tmr = LPC_TMR16B1;
+ gptObjectInit(&GPTD2);
+#endif
+
+#if LPC13xx_GPT_USE_CT32B0
+ /* Driver initialization.*/
+ GPTD3.tmr = LPC_TMR32B0;
+ gptObjectInit(&GPTD3);
+#endif
+
+#if LPC13xx_GPT_USE_CT32B1
+ /* Driver initialization.*/
+ GPTD4.tmr = LPC_TMR32B1;
+ gptObjectInit(&GPTD4);
+#endif
+}
+
+/**
+ * @brief Configures and activates the GPT peripheral.
+ *
+ * @param[in] gptp pointer to the @p GPTDriver object
+ *
+ * @notapi
+ */
+void gpt_lld_start(GPTDriver *gptp) {
+ uint32_t pr;
+
+ if (gptp->state == GPT_STOP) {
+ /* Clock activation.*/
+#if LPC13xx_GPT_USE_CT16B0
+ if (&GPTD1 == gptp) {
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 7);
+ NVICEnableVector(TIMER_16_0_IRQn, CORTEX_PRIORITY_MASK(2));
+ }
+#endif
+#if LPC13xx_GPT_USE_CT16B1
+ if (&GPTD2 == gptp) {
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 8);
+ NVICEnableVector(TIMER_16_1_IRQn, CORTEX_PRIORITY_MASK(3));
+ }
+#endif
+#if LPC13xx_GPT_USE_CT32B0
+ if (&GPTD3 == gptp) {
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 9);
+ NVICEnableVector(TIMER_32_0_IRQn, CORTEX_PRIORITY_MASK(2));
+ }
+#endif
+#if LPC13xx_GPT_USE_CT32B1
+ if (&GPTD4 == gptp) {
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 10);
+ NVICEnableVector(TIMER_32_1_IRQn, CORTEX_PRIORITY_MASK(2));
+ }
+#endif
+ }
+
+ /* Prescaler value calculation.*/
+ pr = (uint16_t)((LPC13xx_SYSCLK / gptp->config->frequency) - 1);
+ chDbgAssert(((uint32_t)(pr + 1) * gptp->config->frequency) == LPC13xx_SYSCLK,
+ "gpt_lld_start(), #1", "invalid frequency");
+
+ /* Timer configuration.*/
+ gptp->tmr->PR = pr;
+ gptp->tmr->IR = 1;
+ gptp->tmr->MCR = 0;
+ gptp->tmr->TCR = 0;
+}
+
+/**
+ * @brief Deactivates the GPT peripheral.
+ *
+ * @param[in] gptp pointer to the @p GPTDriver object
+ *
+ * @notapi
+ */
+void gpt_lld_stop(GPTDriver *gptp) {
+
+ if (gptp->state == GPT_READY) {
+ gptp->tmr->MCR = 0;
+ gptp->tmr->TCR = 0;
+
+#if LPC13xx_GPT_USE_CT16B0
+ if (&GPTD1 == gptp) {
+ NVICDisableVector(TIMER_16_0_IRQn);
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~(1 << 7);
+ }
+#endif
+#if LPC13xx_GPT_USE_CT16B1
+ if (&GPTD2 == gptp) {
+ NVICDisableVector(TIMER_16_1_IRQn);
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~(1 << 8);
+ }
+#endif
+#if LPC13xx_GPT_USE_CT32B0
+ if (&GPTD3 == gptp) {
+ NVICDisableVector(TIMER_32_0_IRQn);
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~(1 << 9);
+ }
+#endif
+#if LPC13xx_GPT_USE_CT32B1
+ if (&GPTD4 == gptp) {
+ NVICDisableVector(TIMER_32_1_IRQn);
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~(1 << 10);
+ }
+#endif
+ }
+}
+
+/**
+ * @brief Starts the timer in continuous mode.
+ *
+ * @param[in] gptp pointer to the @p GPTDriver object
+ * @param[in] interval period in ticks
+ *
+ * @notapi
+ */
+void gpt_lld_start_timer(GPTDriver *gptp, gptcnt_t interval) {
+
+ gptp->tmr->MR0 = interval - 1;
+ gptp->tmr->IR = 1;
+ gptp->tmr->MCR = 3; /* IRQ and clr TC on match MR0. */
+ gptp->tmr->TCR = 2; /* Reset counter and prescaler. */
+ gptp->tmr->TCR = 1; /* Timer enabled. */
+}
+
+/**
+ * @brief Stops the timer.
+ *
+ * @param[in] gptp pointer to the @p GPTDriver object
+ *
+ * @notapi
+ */
+void gpt_lld_stop_timer(GPTDriver *gptp) {
+
+ gptp->tmr->IR = 1;
+ gptp->tmr->MCR = 0;
+ gptp->tmr->TCR = 0;
+}
+
+/**
+ * @brief Starts the timer in one shot mode and waits for completion.
+ * @details This function specifically polls the timer waiting for completion
+ * in order to not have extra delays caused by interrupt servicing,
+ * this function is only recommended for short delays.
+ *
+ * @param[in] gptp pointer to the @p GPTDriver object
+ * @param[in] interval time interval in ticks
+ *
+ * @notapi
+ */
+void gpt_lld_polled_delay(GPTDriver *gptp, gptcnt_t interval) {
+
+ gptp->tmr->MR0 = interval - 1;
+ gptp->tmr->IR = 1;
+ gptp->tmr->MCR = 4; /* Stop TC on match MR0. */
+ gptp->tmr->TCR = 2; /* Reset counter and prescaler. */
+ gptp->tmr->TCR = 1; /* Timer enabled. */
+ while (gptp->tmr->TCR & 1)
+ ;
+}
+
+#endif /* HAL_USE_GPT */
+
+/** @} */
diff --git a/os/hal/platforms/LPC13xx/gpt_lld.h b/os/hal/platforms/LPC13xx/gpt_lld.h new file mode 100644 index 000000000..e4a53224b --- /dev/null +++ b/os/hal/platforms/LPC13xx/gpt_lld.h @@ -0,0 +1,212 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 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 LPC13xx/gpt_lld.h
+ * @brief LPC13xx 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(LPC13xx_GPT_USE_CT16B0) || defined(__DOXYGEN__)
+#define LPC13xx_GPT_USE_CT16B0 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(LPC13xx_GPT_USE_CT16B1) || defined(__DOXYGEN__)
+#define LPC13xx_GPT_USE_CT16B1 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(LPC13xx_GPT_USE_CT32B0) || defined(__DOXYGEN__)
+#define LPC13xx_GPT_USE_CT32B0 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(LPC13xx_GPT_USE_CT32B1) || defined(__DOXYGEN__)
+#define LPC13xx_GPT_USE_CT32B1 TRUE
+#endif
+
+/**
+ * @brief GPT1 interrupt priority level setting.
+ */
+#if !defined(LPC13xx_GPT_CT16B0_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC13xx_GPT_CT16B0_IRQ_PRIORITY 2
+#endif
+
+/**
+ * @brief GPT2 interrupt priority level setting.
+ */
+#if !defined(LPC13xx_GPT_CT16B1_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC13xx_GPT_CT16B1_IRQ_PRIORITY 2
+#endif
+
+/**
+ * @brief GPT3 interrupt priority level setting.
+ */
+#if !defined(LPC13xx_GPT_CT32B0_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC13xx_GPT_CT32B0_IRQ_PRIORITY 2
+#endif
+
+/**
+ * @brief GPT4 interrupt priority level setting.
+ */
+#if !defined(LPC13xx_GPT_CT32B1_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC13xx_GPT_CT32B1_IRQ_PRIORITY 2
+#endif
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if !LPC13xx_GPT_USE_CT16B0 && !LPC13xx_GPT_USE_CT16B1 && \
+ !LPC13xx_GPT_USE_CT32B0 && !LPC13xx_GPT_USE_CT32B1
+#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_TMR_TypeDef *tmr;
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if LPC13xx_GPT_USE_CT16B0 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD1;
+#endif
+
+#if LPC13xx_GPT_USE_CT16B1 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD2;
+#endif
+
+#if LPC13xx_GPT_USE_CT32B0 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD3;
+#endif
+
+#if LPC13xx_GPT_USE_CT32B1 && !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_ */
+
+/** @} */
diff --git a/os/hal/platforms/LPC13xx/hal_lld.c b/os/hal/platforms/LPC13xx/hal_lld.c index 5babb8d2d..da09ebf43 100644 --- a/os/hal/platforms/LPC13xx/hal_lld.c +++ b/os/hal/platforms/LPC13xx/hal_lld.c @@ -1,5 +1,6 @@ /*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
diff --git a/os/hal/platforms/LPC13xx/hal_lld.h b/os/hal/platforms/LPC13xx/hal_lld.h index ff7445df9..0f6b1f611 100644 --- a/os/hal/platforms/LPC13xx/hal_lld.h +++ b/os/hal/platforms/LPC13xx/hal_lld.h @@ -1,5 +1,6 @@ /*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
diff --git a/os/hal/platforms/LPC13xx/pal_lld.c b/os/hal/platforms/LPC13xx/pal_lld.c index f80faaa24..6a66f1ead 100644 --- a/os/hal/platforms/LPC13xx/pal_lld.c +++ b/os/hal/platforms/LPC13xx/pal_lld.c @@ -1,5 +1,6 @@ /*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
diff --git a/os/hal/platforms/LPC13xx/pal_lld.h b/os/hal/platforms/LPC13xx/pal_lld.h index 2c5a1d118..bbf4db0e8 100644 --- a/os/hal/platforms/LPC13xx/pal_lld.h +++ b/os/hal/platforms/LPC13xx/pal_lld.h @@ -1,5 +1,6 @@ /*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
diff --git a/os/hal/platforms/LPC13xx/platform.dox b/os/hal/platforms/LPC13xx/platform.dox index 7b1e09a60..00b3dd1ad 100644 --- a/os/hal/platforms/LPC13xx/platform.dox +++ b/os/hal/platforms/LPC13xx/platform.dox @@ -1,5 +1,6 @@ /*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
@@ -43,7 +44,25 @@ */
/**
- * @defgroup LPC13xx_PAL LPC13xx GPIO Support
+ * @defgroup LPC13xx_GPT LPC13xx GPT Support
+ * @details The LPC13xx GPT driver uses the CTxxBy peripherals.
+ *
+ * @section lpc13xx_gpt_1 Supported HW resources
+ * - CT16B0.
+ * - CT16B1.
+ * - CT32B0.
+ * - CT32B1.
+ * .
+ * @section lpc13xx_gpt_2 LPC13xx GPT driver implementation features
+ * - Each timer can be independently enabled and programmed. Unused
+ * peripherals are left in low power mode.
+ * - Programmable CTxxBy interrupts priority level.
+ * .
+ * @ingroup LPC13xx
+ */
+
+/**
+ * @defgroup LPC13xx_PAL LPC13xx PAL Support
* @details The LPC13xx PAL driver uses the GPIO peripherals.
*
* @section lpc13xx_pal_1 Supported HW resources
@@ -79,7 +98,26 @@ */
/**
- * @defgroup LPC13xx_SPI LPC13xx SSP Support
+ * @defgroup LPC13xx_SERIAL LPC13xx Serial Support
+ * @details The LPC13xx Serial driver uses the UART peripheral in a
+ * buffered, interrupt driven, implementation. The serial driver
+ * also takes advantage of the LPC13xx UARTs deep hardware buffers.
+ *
+ * @section lpc13xx_serial_1 Supported HW resources
+ * The serial driver can support any of the following hardware resources:
+ * - UART.
+ * .
+ * @section lpc13xx_serial_2 LPC13xx Serial driver implementation features
+ * - Clock stop for reduced power usage when the driver is in stop state.
+ * - Fully interrupt driven.
+ * - Programmable priority level.
+ * - Takes advantage of the input and output FIFOs.
+ * .
+ * @ingroup LPC13xx
+ */
+
+/**
+ * @defgroup LPC13xx_SPI LPC13xx SPI Support
* @details The SPI driver supports the LPC13xx SSP peripherals in an interrupt
* driven implementation.
* @note Being the SPI a fast peripheral, much care must be taken to
@@ -100,22 +138,3 @@ * .
* @ingroup LPC13xx
*/
-
-/**
- * @defgroup LPC13xx_SERIAL LPC13xx UART Support (buffered)
- * @details The LPC13xx Serial driver uses the UART peripheral in a
- * buffered, interrupt driven, implementation. The serial driver
- * also takes advantage of the LPC13xx UARTs deep hardware buffers.
- *
- * @section lpc13xx_serial_1 Supported HW resources
- * The serial driver can support any of the following hardware resources:
- * - UART.
- * .
- * @section lpc13xx_serial_2 LPC13xx Serial driver implementation features
- * - Clock stop for reduced power usage when the driver is in stop state.
- * - Fully interrupt driven.
- * - Programmable priority level.
- * - Takes advantage of the input and output FIFOs.
- * .
- * @ingroup LPC13xx
- */
diff --git a/os/hal/platforms/LPC13xx/platform.mk b/os/hal/platforms/LPC13xx/platform.mk index 66c39058e..1171af7d7 100644 --- a/os/hal/platforms/LPC13xx/platform.mk +++ b/os/hal/platforms/LPC13xx/platform.mk @@ -1,5 +1,6 @@ # List of all the LPC13xx platform files.
PLATFORMSRC = ${CHIBIOS}/os/hal/platforms/LPC13xx/hal_lld.c \
+ ${CHIBIOS}/os/hal/platforms/LPC13xx/gpt_lld.c \
${CHIBIOS}/os/hal/platforms/LPC13xx/pal_lld.c \
${CHIBIOS}/os/hal/platforms/LPC13xx/serial_lld.c \
${CHIBIOS}/os/hal/platforms/LPC13xx/spi_lld.c
diff --git a/os/hal/platforms/LPC13xx/serial_lld.c b/os/hal/platforms/LPC13xx/serial_lld.c index b0f53d97a..b4f7844c4 100644 --- a/os/hal/platforms/LPC13xx/serial_lld.c +++ b/os/hal/platforms/LPC13xx/serial_lld.c @@ -1,5 +1,6 @@ /*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
diff --git a/os/hal/platforms/LPC13xx/serial_lld.h b/os/hal/platforms/LPC13xx/serial_lld.h index 3636f224a..e00f44de9 100644 --- a/os/hal/platforms/LPC13xx/serial_lld.h +++ b/os/hal/platforms/LPC13xx/serial_lld.h @@ -1,5 +1,6 @@ /*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
diff --git a/os/hal/platforms/LPC13xx/spi_lld.c b/os/hal/platforms/LPC13xx/spi_lld.c index 1a98a7a15..ec207f19e 100644 --- a/os/hal/platforms/LPC13xx/spi_lld.c +++ b/os/hal/platforms/LPC13xx/spi_lld.c @@ -1,5 +1,6 @@ /*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
@@ -53,27 +54,27 @@ SPIDriver SPID1; * @param[in] spip pointer to the @p SPIDriver object
*/
static void ssp_fifo_preload(SPIDriver *spip) {
- LPC_SSP_TypeDef *ssp = spip->spd_ssp;
- uint32_t n = spip->spd_txcnt > LPC13xx_SSP_FIFO_DEPTH ?
- LPC13xx_SSP_FIFO_DEPTH : spip->spd_txcnt;
+ LPC_SSP_TypeDef *ssp = spip->ssp;
+ uint32_t n = spip->txcnt > LPC13xx_SSP_FIFO_DEPTH ?
+ LPC13xx_SSP_FIFO_DEPTH : spip->txcnt;
while(((ssp->SR & SR_TNF) != 0) && (n > 0)) {
- if (spip->spd_txptr != NULL) {
+ if (spip->txptr != NULL) {
if ((ssp->CR0 & CR0_DSSMASK) > CR0_DSS8BIT) {
- const uint16_t *p = spip->spd_txptr;
+ const uint16_t *p = spip->txptr;
ssp->DR = *p++;
- spip->spd_txptr = p;
+ spip->txptr = p;
}
else {
- const uint8_t *p = spip->spd_txptr;
+ const uint8_t *p = spip->txptr;
ssp->DR = *p++;
- spip->spd_txptr = p;
+ spip->txptr = p;
}
}
else
ssp->DR = 0xFFFFFFFF;
n--;
- spip->spd_txcnt--;
+ spip->txcnt--;
}
}
@@ -83,7 +84,7 @@ static void ssp_fifo_preload(SPIDriver *spip) { * @param[in] spip pointer to the @p SPIDriver object
*/
static void spi_serve_interrupt(SPIDriver *spip) {
- LPC_SSP_TypeDef *ssp = spip->spd_ssp;
+ LPC_SSP_TypeDef *ssp = spip->ssp;
if ((ssp->MIS & MIS_ROR) != 0) {
/* The overflow condition should never happen because priority is given
@@ -92,22 +93,22 @@ static void spi_serve_interrupt(SPIDriver *spip) { }
ssp->ICR = ICR_RT | ICR_ROR;
while ((ssp->SR & SR_RNE) != 0) {
- if (spip->spd_rxptr != NULL) {
+ if (spip->rxptr != NULL) {
if ((ssp->CR0 & CR0_DSSMASK) > CR0_DSS8BIT) {
- uint16_t *p = spip->spd_rxptr;
+ uint16_t *p = spip->rxptr;
*p++ = ssp->DR;
- spip->spd_rxptr = p;
+ spip->rxptr = p;
}
else {
- uint8_t *p = spip->spd_rxptr;
+ uint8_t *p = spip->rxptr;
*p++ = ssp->DR;
- spip->spd_rxptr = p;
+ spip->rxptr = p;
}
}
else
(void)ssp->DR;
- if (--spip->spd_rxcnt == 0) {
- chDbgAssert(spip->spd_txcnt == 0,
+ if (--spip->rxcnt == 0) {
+ chDbgAssert(spip->txcnt == 0,
"spi_serve_interrupt(), #1", "counter out of synch");
/* Stops the IRQ sources.*/
ssp->IMSC = 0;
@@ -118,7 +119,7 @@ static void spi_serve_interrupt(SPIDriver *spip) { }
}
ssp_fifo_preload(spip);
- if (spip->spd_txcnt == 0)
+ if (spip->txcnt == 0)
ssp->IMSC = IMSC_ROR | IMSC_RT | IMSC_RX;
}
@@ -155,7 +156,7 @@ void spi_lld_init(void) { #if LPC13xx_SPI_USE_SSP0
spiObjectInit(&SPID1);
- SPID1.spd_ssp = LPC_SSP;
+ SPID1.ssp = LPC_SSP;
LPC_IOCON->SCKLOC = LPC13xx_SPI_SCK0_SELECTOR;
#if LPC13xx_SPI_SCK0_SELECTOR == SCK0_IS_PIO0_10
LPC_IOCON->JTAG_TCK_PIO0_10 = 0xC2; /* SCK0 without resistors. */
@@ -178,7 +179,7 @@ void spi_lld_init(void) { */
void spi_lld_start(SPIDriver *spip) {
- if (spip->spd_state == SPI_STOP) {
+ if (spip->state == SPI_STOP) {
/* Clock activation.*/
#if LPC13xx_SPI_USE_SSP0
if (&SPID1 == spip) {
@@ -191,11 +192,11 @@ void spi_lld_start(SPIDriver *spip) { #endif
}
/* Configuration.*/
- spip->spd_ssp->CR1 = 0;
- spip->spd_ssp->ICR = ICR_RT | ICR_ROR;
- spip->spd_ssp->CR0 = spip->spd_config->spc_cr0;
- spip->spd_ssp->CPSR = spip->spd_config->spc_cpsr;
- spip->spd_ssp->CR1 = CR1_SSE;
+ spip->ssp->CR1 = 0;
+ spip->ssp->ICR = ICR_RT | ICR_ROR;
+ spip->ssp->CR0 = spip->config->cr0;
+ spip->ssp->CPSR = spip->config->cpsr;
+ spip->ssp->CR1 = CR1_SSE;
}
/**
@@ -207,10 +208,10 @@ void spi_lld_start(SPIDriver *spip) { */
void spi_lld_stop(SPIDriver *spip) {
- if (spip->spd_state != SPI_STOP) {
- spip->spd_ssp->CR1 = 0;
- spip->spd_ssp->CR0 = 0;
- spip->spd_ssp->CPSR = 0;
+ if (spip->state != SPI_STOP) {
+ spip->ssp->CR1 = 0;
+ spip->ssp->CR0 = 0;
+ spip->ssp->CPSR = 0;
#if LPC13xx_SPI_USE_SSP0
if (&SPID1 == spip) {
LPC_SYSCON->PRESETCTRL &= ~1;
@@ -231,7 +232,7 @@ void spi_lld_stop(SPIDriver *spip) { */
void spi_lld_select(SPIDriver *spip) {
- palClearPad(spip->spd_config->spc_ssport, spip->spd_config->spc_sspad);
+ palClearPad(spip->config->ssport, spip->config->sspad);
}
/**
@@ -244,7 +245,7 @@ void spi_lld_select(SPIDriver *spip) { */
void spi_lld_unselect(SPIDriver *spip) {
- palSetPad(spip->spd_config->spc_ssport, spip->spd_config->spc_sspad);
+ palSetPad(spip->config->ssport, spip->config->sspad);
}
/**
@@ -260,11 +261,11 @@ void spi_lld_unselect(SPIDriver *spip) { */
void spi_lld_ignore(SPIDriver *spip, size_t n) {
- spip->spd_rxptr = NULL;
- spip->spd_txptr = NULL;
- spip->spd_rxcnt = spip->spd_txcnt = n;
+ spip->rxptr = NULL;
+ spip->txptr = NULL;
+ spip->rxcnt = spip->txcnt = n;
ssp_fifo_preload(spip);
- spip->spd_ssp->IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
+ spip->ssp->IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
}
/**
@@ -285,11 +286,11 @@ void spi_lld_ignore(SPIDriver *spip, size_t n) { void spi_lld_exchange(SPIDriver *spip, size_t n,
const void *txbuf, void *rxbuf) {
- spip->spd_rxptr = rxbuf;
- spip->spd_txptr = txbuf;
- spip->spd_rxcnt = spip->spd_txcnt = n;
+ spip->rxptr = rxbuf;
+ spip->txptr = txbuf;
+ spip->rxcnt = spip->txcnt = n;
ssp_fifo_preload(spip);
- spip->spd_ssp->IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
+ spip->ssp->IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
}
/**
@@ -307,11 +308,11 @@ void spi_lld_exchange(SPIDriver *spip, size_t n, */
void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
- spip->spd_rxptr = NULL;
- spip->spd_txptr = txbuf;
- spip->spd_rxcnt = spip->spd_txcnt = n;
+ spip->rxptr = NULL;
+ spip->txptr = txbuf;
+ spip->rxcnt = spip->txcnt = n;
ssp_fifo_preload(spip);
- spip->spd_ssp->IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
+ spip->ssp->IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
}
/**
@@ -329,11 +330,11 @@ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) { */
void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) {
- spip->spd_rxptr = rxbuf;
- spip->spd_txptr = NULL;
- spip->spd_rxcnt = spip->spd_txcnt = n;
+ spip->rxptr = rxbuf;
+ spip->txptr = NULL;
+ spip->rxcnt = spip->txcnt = n;
ssp_fifo_preload(spip);
- spip->spd_ssp->IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
+ spip->ssp->IMSC = IMSC_ROR | IMSC_RT | IMSC_TX | IMSC_RX;
}
/**
@@ -350,10 +351,10 @@ void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) { */
uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame) {
- spip->spd_ssp->DR = (uint32_t)frame;
- while ((spip->spd_ssp->SR & SR_RNE) == 0)
+ spip->ssp->DR = (uint32_t)frame;
+ while ((spip->ssp->SR & SR_RNE) == 0)
;
- return (uint16_t)spip->spd_ssp->DR;
+ return (uint16_t)spip->ssp->DR;
}
#endif /* HAL_USE_SPI */
diff --git a/os/hal/platforms/LPC13xx/spi_lld.h b/os/hal/platforms/LPC13xx/spi_lld.h index 153ce815b..b5f63f40b 100644 --- a/os/hal/platforms/LPC13xx/spi_lld.h +++ b/os/hal/platforms/LPC13xx/spi_lld.h @@ -1,5 +1,6 @@ /*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
@@ -167,7 +168,7 @@ /**
* @brief SSP0 clock.
*/
-#define LPC13xx_SERIAL_SSP0_PCLK \
+#define LPC13xx_SERIAL_SSP0_PCLK \
(LPC13xx_MAINCLK / LPC13xx_SERIAL_SSP0CLKDIV)
/*===========================================================================*/
@@ -194,24 +195,24 @@ typedef struct { /**
* @brief Operation complete callback or @p NULL.
*/
- spicallback_t spc_endcb;
+ spicallback_t end_cb;
/* End of the mandatory fields.*/
/**
* @brief The chip select line port.
*/
- ioportid_t spc_ssport;
+ ioportid_t ssport;
/**
* @brief The chip select line pad number.
*/
- uint16_t spc_sspad;
+ uint16_t sspad;
/**
* @brief SSP CR0 initialization data.
*/
- uint16_t spc_cr0;
+ uint16_t cr0;
/**
* @brief SSP CPSR initialization data.
*/
- uint32_t spc_cpsr;
+ uint32_t cpsr;
} SPIConfig;
/**
@@ -221,25 +222,25 @@ struct SPIDriver { /**
* @brief Driver state.
*/
- spistate_t spd_state;
+ spistate_t state;
/**
* @brief Current configuration data.
*/
- const SPIConfig *spd_config;
+ const SPIConfig *config;
#if SPI_USE_WAIT || defined(__DOXYGEN__)
/**
* @brief Waiting thread.
*/
- Thread *spd_thread;
+ Thread *thread;
#endif /* SPI_USE_WAIT */
#if SPI_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__)
#if CH_USE_MUTEXES || defined(__DOXYGEN__)
/**
* @brief Mutex protecting the bus.
*/
- Mutex spd_mutex;
+ Mutex mutex;
#elif CH_USE_SEMAPHORES
- Semaphore spd_semaphore;
+ Semaphore semaphore;
#endif
#endif /* SPI_USE_MUTUAL_EXCLUSION */
#if defined(SPI_DRIVER_EXT_FIELDS)
@@ -249,23 +250,23 @@ struct SPIDriver { /**
* @brief Pointer to the SSP registers block.
*/
- LPC_SSP_TypeDef *spd_ssp;
+ LPC_SSP_TypeDef *ssp;
/**
* @brief Number of bytes yet to be received.
*/
- uint32_t spd_rxcnt;
+ uint32_t rxcnt;
/**
* @brief Receive pointer or @p NULL.
*/
- void *spd_rxptr;
+ void *rxptr;
/**
* @brief Number of bytes yet to be transmitted.
*/
- uint32_t spd_txcnt;
+ uint32_t txcnt;
/**
* @brief Transmit pointer or @p NULL.
*/
- const void *spd_txptr;
+ const void *txptr;
};
/*===========================================================================*/
|