diff options
Diffstat (limited to 'nuttx/configs/shenzhou/src/up_leds.c')
-rw-r--r-- | nuttx/configs/shenzhou/src/up_leds.c | 401 |
1 files changed, 401 insertions, 0 deletions
diff --git a/nuttx/configs/shenzhou/src/up_leds.c b/nuttx/configs/shenzhou/src/up_leds.c new file mode 100644 index 000000000..c7ce0b909 --- /dev/null +++ b/nuttx/configs/shenzhou/src/up_leds.c @@ -0,0 +1,401 @@ +/**************************************************************************** + * configs/shenzhou/src/up_leds.c + * arch/arm/src/board/up_leds.c + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> +#include <stdbool.h> +#include <debug.h> + +#include <arch/board/board.h> +#include <nuttx/power/pm.h> + +#include "chip.h" +#include "up_arch.h" +#include "up_internal.h" +#include "stm32_internal.h" +#include "shenzhou-internal.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/* Enables debug output from this file (needs CONFIG_DEBUG with + * CONFIG_DEBUG_VERBOSE too) + */ + +#undef LED_DEBUG /* Define to enable debug */ + +#ifdef LED_DEBUG +# define leddbg lldbg +# define ledvdbg llvdbg +#else +# define leddbg(x...) +# define ledvdbg(x...) +#endif + +/* The following definitions map the encoded LED setting to GPIO settings */ + +#define SHENZHOU_LED1 (1 << 0) +#define SHENZHOU_LED2 (1 << 1) +#define SHENZHOU_LED3 (1 << 2) +#define SHENZHOU_LED4 (1 << 3) + +#define ON_SETBITS_SHIFT (0) +#define ON_CLRBITS_SHIFT (4) +#define OFF_SETBITS_SHIFT (8) +#define OFF_CLRBITS_SHIFT (12) + +#define ON_BITS(v) ((v) & 0xff) +#define OFF_BITS(v) (((v) >> 8) & 0x0ff) +#define SETBITS(b) ((b) & 0x0f) +#define CLRBITS(b) (((b) >> 4) & 0x0f) + +#define ON_SETBITS(v) (SETBITS(ON_BITS(v)) +#define ON_CLRBITS(v) (CLRBITS(ON_BITS(v)) +#define OFF_SETBITS(v) (SETBITS(OFF_BITS(v)) +#define OFF_CLRBITS(v) (CLRBITS(OFF_BITS(v)) + +#define LED_STARTED_ON_SETBITS ((SHENZHOU_LED1) << ON_SETBITS_SHIFT) +#define LED_STARTED_ON_CLRBITS ((SHENZHOU_LED2|SHENZHOU_LED3|SHENZHOU_LED4) << ON_CLRBITS_SHIFT) +#define LED_STARTED_OFF_SETBITS (0 << OFF_SETBITS_SHIFT) +#define LED_STARTED_OFF_CLRBITS ((SHENZHOU_LED1|SHENZHOU_LED2|SHENZHOU_LED3|SHENZHOU_LED4) << OFF_CLRBITS_SHIFT) + +#define LED_HEAPALLOCATE_ON_SETBITS ((SHENZHOU_LED2) << ON_SETBITS_SHIFT) +#define LED_HEAPALLOCATE_ON_CLRBITS ((SHENZHOU_LED1|SHENZHOU_LED3|SHENZHOU_LED4) << ON_CLRBITS_SHIFT) +#define LED_HEAPALLOCATE_OFF_SETBITS ((SHENZHOU_LED1) << OFF_SETBITS_SHIFT) +#define LED_HEAPALLOCATE_OFF_CLRBITS ((SHENZHOU_LED2|SHENZHOU_LED3|SHENZHOU_LED4) << OFF_CLRBITS_SHIFT) + +#define LED_IRQSENABLED_ON_SETBITS ((SHENZHOU_LED1|SHENZHOU_LED2) << ON_SETBITS_SHIFT) +#define LED_IRQSENABLED_ON_CLRBITS ((SHENZHOU_LED3|SHENZHOU_LED4) << ON_CLRBITS_SHIFT) +#define LED_IRQSENABLED_OFF_SETBITS ((SHENZHOU_LED2) << OFF_SETBITS_SHIFT) +#define LED_IRQSENABLED_OFF_CLRBITS ((SHENZHOU_LED1|SHENZHOU_LED3|SHENZHOU_LED4) << OFF_CLRBITS_SHIFT) + +#define LED_STACKCREATED_ON_SETBITS ((SHENZHOU_LED3) << ON_SETBITS_SHIFT) +#define LED_STACKCREATED_ON_CLRBITS ((SHENZHOU_LED1|SHENZHOU_LED2|SHENZHOU_LED4) << ON_CLRBITS_SHIFT) +#define LED_STACKCREATED_OFF_SETBITS ((SHENZHOU_LED1|SHENZHOU_LED2) << OFF_SETBITS_SHIFT) +#define LED_STACKCREATED_OFF_CLRBITS ((SHENZHOU_LED3|SHENZHOU_LED4) << OFF_CLRBITS_SHIFT) + +#define LED_INIRQ_ON_SETBITS ((SHENZHOU_LED1) << ON_SETBITS_SHIFT) +#define LED_INIRQ_ON_CLRBITS ((0) << ON_CLRBITS_SHIFT) +#define LED_INIRQ_OFF_SETBITS ((0) << OFF_SETBITS_SHIFT) +#define LED_INIRQ_OFF_CLRBITS ((SHENZHOU_LED1) << OFF_CLRBITS_SHIFT) + +#define LED_SIGNAL_ON_SETBITS ((SHENZHOU_LED2) << ON_SETBITS_SHIFT) +#define LED_SIGNAL_ON_CLRBITS ((0) << ON_CLRBITS_SHIFT) +#define LED_SIGNAL_OFF_SETBITS ((0) << OFF_SETBITS_SHIFT) +#define LED_SIGNAL_OFF_CLRBITS ((SHENZHOU_LED2) << OFF_CLRBITS_SHIFT) + +#define LED_ASSERTION_ON_SETBITS ((SHENZHOU_LED4) << ON_SETBITS_SHIFT) +#define LED_ASSERTION_ON_CLRBITS ((0) << ON_CLRBITS_SHIFT) +#define LED_ASSERTION_OFF_SETBITS ((0) << OFF_SETBITS_SHIFT) +#define LED_ASSERTION_OFF_CLRBITS ((SHENZHOU_LED4) << OFF_CLRBITS_SHIFT) + +#define LED_PANIC_ON_SETBITS ((SHENZHOU_LED4) << ON_SETBITS_SHIFT) +#define LED_PANIC_ON_CLRBITS ((0) << ON_CLRBITS_SHIFT) +#define LED_PANIC_OFF_SETBITS ((0) << OFF_SETBITS_SHIFT) +#define LED_PANIC_OFF_CLRBITS ((SHENZHOU_LED4) << OFF_CLRBITS_SHIFT) + +/************************************************************************************** + * Private Function Protototypes + **************************************************************************************/ + +/* LED State Controls */ + +static inline void led_clrbits(unsigned int clrbits); +static inline void led_setbits(unsigned int setbits); +static void led_setonoff(unsigned int bits); + +/* LED Power Management */ + +#ifdef CONFIG_PM +static void led_pm_notify(struct pm_callback_s *cb, enum pm_state_e pmstate); +static int led_pm_prepare(struct pm_callback_s *cb, enum pm_state_e pmstate); +#endif + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static const uint16_t g_ledbits[8] = +{ + (LED_STARTED_ON_SETBITS | LED_STARTED_ON_CLRBITS | + LED_STARTED_OFF_SETBITS | LED_STARTED_OFF_CLRBITS), + + (LED_HEAPALLOCATE_ON_SETBITS | LED_HEAPALLOCATE_ON_CLRBITS | + LED_HEAPALLOCATE_OFF_SETBITS | LED_HEAPALLOCATE_OFF_CLRBITS), + + (LED_IRQSENABLED_ON_SETBITS | LED_IRQSENABLED_ON_CLRBITS | + LED_IRQSENABLED_OFF_SETBITS | LED_IRQSENABLED_OFF_CLRBITS), + + (LED_STACKCREATED_ON_SETBITS | LED_STACKCREATED_ON_CLRBITS | + LED_STACKCREATED_OFF_SETBITS | LED_STACKCREATED_OFF_CLRBITS), + + (LED_INIRQ_ON_SETBITS | LED_INIRQ_ON_CLRBITS | + LED_INIRQ_OFF_SETBITS | LED_INIRQ_OFF_CLRBITS), + + (LED_SIGNAL_ON_SETBITS | LED_SIGNAL_ON_CLRBITS | + LED_SIGNAL_OFF_SETBITS | LED_SIGNAL_OFF_CLRBITS), + + (LED_ASSERTION_ON_SETBITS | LED_ASSERTION_ON_CLRBITS | + LED_ASSERTION_OFF_SETBITS | LED_ASSERTION_OFF_CLRBITS), + + (LED_PANIC_ON_SETBITS | LED_PANIC_ON_CLRBITS | + LED_PANIC_OFF_SETBITS | LED_PANIC_OFF_CLRBITS) +}; + +#ifdef CONFIG_PM +static struct pm_callback_s g_ledscb = +{ + .notify = led_pm_notify, + .prepare = led_pm_prepare, +}; +#endif + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: led_clrbits + * + * Description: + * Clear all LEDs to the bit encoded state + * + ****************************************************************************/ + +static inline void led_clrbits(unsigned int clrbits) +{ + if ((clrbits & SHENZHOU_LED1) != 0) + { + stm32_gpiowrite(GPIO_LED1, false); + } + + if ((clrbits & SHENZHOU_LED2) != 0) + { + stm32_gpiowrite(GPIO_LED2, false); + } + + if ((clrbits & SHENZHOU_LED3) != 0) + { + stm32_gpiowrite(GPIO_LED3, false); + } + + if ((clrbits & SHENZHOU_LED4) != 0) + { + stm32_gpiowrite(GPIO_LED4, false); + } +} + +/**************************************************************************** + * Name: led_setbits + * + * Description: + * Set all LEDs to the bit encoded state + * + ****************************************************************************/ + +static inline void led_setbits(unsigned int setbits) +{ + if ((setbits & SHENZHOU_LED1) != 0) + { + stm32_gpiowrite(GPIO_LED1, true); + } + + if ((setbits & SHENZHOU_LED2) != 0) + { + stm32_gpiowrite(GPIO_LED2, true); + } + + if ((setbits & SHENZHOU_LED3) != 0) + { + stm32_gpiowrite(GPIO_LED3, true); + } + + if ((setbits & SHENZHOU_LED4) != 0) + { + stm32_gpiowrite(GPIO_LED4, true); + } +} + +/**************************************************************************** + * Name: led_setonoff + * + * Description: + * Set/clear all LEDs to the bit encoded state + * + ****************************************************************************/ + +static void led_setonoff(unsigned int bits) +{ + led_clrbits(CLRBITS(bits)); + led_setbits(SETBITS(bits)); +} + +/**************************************************************************** + * Name: led_pm_notify + * + * Description: + * Notify the driver of new power state. This callback is called after + * all drivers have had the opportunity to prepare for the new power state. + * + ****************************************************************************/ + +#ifdef CONFIG_PM +static void led_pm_notify(struct pm_callback_s *cb , enum pm_state_e pmstate) +{ + switch (pmstate) + { + case(PM_NORMAL): + { + /* Restore normal LEDs operation */ + + } + break; + + case(PM_IDLE): + { + /* Entering IDLE mode - Turn leds off */ + + } + break; + + case(PM_STANDBY): + { + /* Entering STANDBY mode - Logic for PM_STANDBY goes here */ + + } + break; + + case(PM_SLEEP): + { + /* Entering SLEEP mode - Logic for PM_SLEEP goes here */ + + } + break; + + default: + { + /* Should not get here */ + + } + break; + } +} +#endif + +/**************************************************************************** + * Name: led_pm_prepare + * + * Description: + * Request the driver to prepare for a new power state. This is a warning + * that the system is about to enter into a new power state. The driver + * should begin whatever operations that may be required to enter power + * state. The driver may abort the state change mode by returning a + * non-zero value from the callback function. + * + ****************************************************************************/ + +#ifdef CONFIG_PM +static int led_pm_prepare(struct pm_callback_s *cb , enum pm_state_e pmstate) +{ + /* No preparation to change power modes is required by the LEDs driver. + * We always accept the state change by returning OK. + */ + + return OK; +} +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_ledinit + ****************************************************************************/ + +#ifdef CONFIG_ARCH_LEDS +void up_ledinit(void) +{ + /* Configure LED1-4 GPIOs for output */ + + stm32_configgpio(GPIO_LED1); + stm32_configgpio(GPIO_LED2); + stm32_configgpio(GPIO_LED3); + stm32_configgpio(GPIO_LED4); +} + +/**************************************************************************** + * Name: up_ledon + ****************************************************************************/ + +void up_ledon(int led) +{ + led_setonoff(ON_BITS(g_ledbits[led])); +} + +/**************************************************************************** + * Name: up_ledoff + ****************************************************************************/ + +void up_ledoff(int led) +{ + led_setonoff(OFF_BITS(g_ledbits[led])); +} + +/**************************************************************************** + * Name: up_ledpminitialize + ****************************************************************************/ + +#ifdef CONFIG_PM +void up_ledpminitialize(void) +{ + /* Register to receive power management callbacks */ + + int ret = pm_register(&g_ledscb); + if (ret != OK) + { + up_ledon(LED_ASSERTION); + } +} +#endif /* CONFIG_PM */ + +#endif /* CONFIG_ARCH_LEDS */ |