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401 lines
13 KiB
401 lines
13 KiB
/**************************************************************************** |
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* configs/stm3210e_eval/src/up_leds.c |
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* arch/arm/src/board/up_leds.c |
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* |
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* Copyright (C) 2009-2012 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#include <stdint.h> |
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#include <stdbool.h> |
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#include <debug.h> |
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#include <arch/board/board.h> |
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#include <nuttx/power/pm.h> |
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#include "chip.h" |
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#include "up_arch.h" |
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#include "up_internal.h" |
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#include "stm32_internal.h" |
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#include "stm3210e-internal.h" |
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/**************************************************************************** |
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* Definitions |
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****************************************************************************/ |
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/* Enables debug output from this file (needs CONFIG_DEBUG with |
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* CONFIG_DEBUG_VERBOSE too) |
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*/ |
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#undef LED_DEBUG /* Define to enable debug */ |
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#ifdef LED_DEBUG |
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# define leddbg lldbg |
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# define ledvdbg llvdbg |
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#else |
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# define leddbg(x...) |
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# define ledvdbg(x...) |
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#endif |
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/* The following definitions map the encoded LED setting to GPIO settings */ |
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#define STM3210E_LED1 (1 << 0) |
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#define STM3210E_LED2 (1 << 1) |
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#define STM3210E_LED3 (1 << 2) |
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#define STM3210E_LED4 (1 << 3) |
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#define ON_SETBITS_SHIFT (0) |
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#define ON_CLRBITS_SHIFT (4) |
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#define OFF_SETBITS_SHIFT (8) |
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#define OFF_CLRBITS_SHIFT (12) |
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#define ON_BITS(v) ((v) & 0xff) |
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#define OFF_BITS(v) (((v) >> 8) & 0x0ff) |
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#define SETBITS(b) ((b) & 0x0f) |
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#define CLRBITS(b) (((b) >> 4) & 0x0f) |
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#define ON_SETBITS(v) (SETBITS(ON_BITS(v)) |
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#define ON_CLRBITS(v) (CLRBITS(ON_BITS(v)) |
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#define OFF_SETBITS(v) (SETBITS(OFF_BITS(v)) |
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#define OFF_CLRBITS(v) (CLRBITS(OFF_BITS(v)) |
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#define LED_STARTED_ON_SETBITS ((STM3210E_LED1) << ON_SETBITS_SHIFT) |
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#define LED_STARTED_ON_CLRBITS ((STM3210E_LED2|STM3210E_LED3|STM3210E_LED4) << ON_CLRBITS_SHIFT) |
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#define LED_STARTED_OFF_SETBITS (0 << OFF_SETBITS_SHIFT) |
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#define LED_STARTED_OFF_CLRBITS ((STM3210E_LED1|STM3210E_LED2|STM3210E_LED3|STM3210E_LED4) << OFF_CLRBITS_SHIFT) |
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#define LED_HEAPALLOCATE_ON_SETBITS ((STM3210E_LED2) << ON_SETBITS_SHIFT) |
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#define LED_HEAPALLOCATE_ON_CLRBITS ((STM3210E_LED1|STM3210E_LED3|STM3210E_LED4) << ON_CLRBITS_SHIFT) |
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#define LED_HEAPALLOCATE_OFF_SETBITS ((STM3210E_LED1) << OFF_SETBITS_SHIFT) |
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#define LED_HEAPALLOCATE_OFF_CLRBITS ((STM3210E_LED2|STM3210E_LED3|STM3210E_LED4) << OFF_CLRBITS_SHIFT) |
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#define LED_IRQSENABLED_ON_SETBITS ((STM3210E_LED1|STM3210E_LED2) << ON_SETBITS_SHIFT) |
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#define LED_IRQSENABLED_ON_CLRBITS ((STM3210E_LED3|STM3210E_LED4) << ON_CLRBITS_SHIFT) |
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#define LED_IRQSENABLED_OFF_SETBITS ((STM3210E_LED2) << OFF_SETBITS_SHIFT) |
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#define LED_IRQSENABLED_OFF_CLRBITS ((STM3210E_LED1|STM3210E_LED3|STM3210E_LED4) << OFF_CLRBITS_SHIFT) |
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#define LED_STACKCREATED_ON_SETBITS ((STM3210E_LED3) << ON_SETBITS_SHIFT) |
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#define LED_STACKCREATED_ON_CLRBITS ((STM3210E_LED1|STM3210E_LED2|STM3210E_LED4) << ON_CLRBITS_SHIFT) |
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#define LED_STACKCREATED_OFF_SETBITS ((STM3210E_LED1|STM3210E_LED2) << OFF_SETBITS_SHIFT) |
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#define LED_STACKCREATED_OFF_CLRBITS ((STM3210E_LED3|STM3210E_LED4) << OFF_CLRBITS_SHIFT) |
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#define LED_INIRQ_ON_SETBITS ((STM3210E_LED1) << ON_SETBITS_SHIFT) |
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#define LED_INIRQ_ON_CLRBITS ((0) << ON_CLRBITS_SHIFT) |
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#define LED_INIRQ_OFF_SETBITS ((0) << OFF_SETBITS_SHIFT) |
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#define LED_INIRQ_OFF_CLRBITS ((STM3210E_LED1) << OFF_CLRBITS_SHIFT) |
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#define LED_SIGNAL_ON_SETBITS ((STM3210E_LED2) << ON_SETBITS_SHIFT) |
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#define LED_SIGNAL_ON_CLRBITS ((0) << ON_CLRBITS_SHIFT) |
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#define LED_SIGNAL_OFF_SETBITS ((0) << OFF_SETBITS_SHIFT) |
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#define LED_SIGNAL_OFF_CLRBITS ((STM3210E_LED2) << OFF_CLRBITS_SHIFT) |
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#define LED_ASSERTION_ON_SETBITS ((STM3210E_LED4) << ON_SETBITS_SHIFT) |
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#define LED_ASSERTION_ON_CLRBITS ((0) << ON_CLRBITS_SHIFT) |
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#define LED_ASSERTION_OFF_SETBITS ((0) << OFF_SETBITS_SHIFT) |
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#define LED_ASSERTION_OFF_CLRBITS ((STM3210E_LED4) << OFF_CLRBITS_SHIFT) |
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#define LED_PANIC_ON_SETBITS ((STM3210E_LED4) << ON_SETBITS_SHIFT) |
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#define LED_PANIC_ON_CLRBITS ((0) << ON_CLRBITS_SHIFT) |
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#define LED_PANIC_OFF_SETBITS ((0) << OFF_SETBITS_SHIFT) |
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#define LED_PANIC_OFF_CLRBITS ((STM3210E_LED4) << OFF_CLRBITS_SHIFT) |
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/************************************************************************************** |
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* Private Function Protototypes |
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**************************************************************************************/ |
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/* LED State Controls */ |
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static inline void led_clrbits(unsigned int clrbits); |
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static inline void led_setbits(unsigned int setbits); |
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static void led_setonoff(unsigned int bits); |
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/* LED Power Management */ |
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#ifdef CONFIG_PM |
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static void led_pm_notify(struct pm_callback_s *cb, enum pm_state_e pmstate); |
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static int led_pm_prepare(struct pm_callback_s *cb, enum pm_state_e pmstate); |
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#endif |
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/**************************************************************************** |
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* Private Data |
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****************************************************************************/ |
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static const uint16_t g_ledbits[8] = |
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{ |
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(LED_STARTED_ON_SETBITS | LED_STARTED_ON_CLRBITS | |
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LED_STARTED_OFF_SETBITS | LED_STARTED_OFF_CLRBITS), |
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(LED_HEAPALLOCATE_ON_SETBITS | LED_HEAPALLOCATE_ON_CLRBITS | |
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LED_HEAPALLOCATE_OFF_SETBITS | LED_HEAPALLOCATE_OFF_CLRBITS), |
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(LED_IRQSENABLED_ON_SETBITS | LED_IRQSENABLED_ON_CLRBITS | |
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LED_IRQSENABLED_OFF_SETBITS | LED_IRQSENABLED_OFF_CLRBITS), |
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(LED_STACKCREATED_ON_SETBITS | LED_STACKCREATED_ON_CLRBITS | |
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LED_STACKCREATED_OFF_SETBITS | LED_STACKCREATED_OFF_CLRBITS), |
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(LED_INIRQ_ON_SETBITS | LED_INIRQ_ON_CLRBITS | |
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LED_INIRQ_OFF_SETBITS | LED_INIRQ_OFF_CLRBITS), |
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(LED_SIGNAL_ON_SETBITS | LED_SIGNAL_ON_CLRBITS | |
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LED_SIGNAL_OFF_SETBITS | LED_SIGNAL_OFF_CLRBITS), |
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(LED_ASSERTION_ON_SETBITS | LED_ASSERTION_ON_CLRBITS | |
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LED_ASSERTION_OFF_SETBITS | LED_ASSERTION_OFF_CLRBITS), |
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(LED_PANIC_ON_SETBITS | LED_PANIC_ON_CLRBITS | |
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LED_PANIC_OFF_SETBITS | LED_PANIC_OFF_CLRBITS) |
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}; |
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#ifdef CONFIG_PM |
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static struct pm_callback_s g_ledscb = |
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{ |
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.notify = led_pm_notify, |
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.prepare = led_pm_prepare, |
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}; |
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#endif |
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/**************************************************************************** |
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* Private Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: led_clrbits |
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* |
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* Description: |
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* Clear all LEDs to the bit encoded state |
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* |
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****************************************************************************/ |
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static inline void led_clrbits(unsigned int clrbits) |
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{ |
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if ((clrbits & STM3210E_LED1) != 0) |
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{ |
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stm32_gpiowrite(GPIO_LED1, false); |
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} |
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if ((clrbits & STM3210E_LED2) != 0) |
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{ |
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stm32_gpiowrite(GPIO_LED2, false); |
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} |
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if ((clrbits & STM3210E_LED3) != 0) |
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{ |
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stm32_gpiowrite(GPIO_LED3, false); |
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} |
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if ((clrbits & STM3210E_LED4) != 0) |
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{ |
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stm32_gpiowrite(GPIO_LED4, false); |
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} |
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} |
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/**************************************************************************** |
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* Name: led_setbits |
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* |
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* Description: |
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* Set all LEDs to the bit encoded state |
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* |
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****************************************************************************/ |
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static inline void led_setbits(unsigned int setbits) |
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{ |
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if ((setbits & STM3210E_LED1) != 0) |
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{ |
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stm32_gpiowrite(GPIO_LED1, true); |
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} |
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if ((setbits & STM3210E_LED2) != 0) |
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{ |
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stm32_gpiowrite(GPIO_LED2, true); |
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} |
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if ((setbits & STM3210E_LED3) != 0) |
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{ |
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stm32_gpiowrite(GPIO_LED3, true); |
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} |
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if ((setbits & STM3210E_LED4) != 0) |
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{ |
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stm32_gpiowrite(GPIO_LED4, true); |
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} |
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} |
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/**************************************************************************** |
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* Name: led_setonoff |
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* |
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* Description: |
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* Set/clear all LEDs to the bit encoded state |
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* |
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****************************************************************************/ |
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static void led_setonoff(unsigned int bits) |
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{ |
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led_clrbits(CLRBITS(bits)); |
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led_setbits(SETBITS(bits)); |
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} |
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/**************************************************************************** |
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* Name: led_pm_notify |
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* |
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* Description: |
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* Notify the driver of new power state. This callback is called after |
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* all drivers have had the opportunity to prepare for the new power state. |
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* |
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****************************************************************************/ |
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#ifdef CONFIG_PM |
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static void led_pm_notify(struct pm_callback_s *cb , enum pm_state_e pmstate) |
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{ |
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switch (pmstate) |
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{ |
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case(PM_NORMAL): |
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{ |
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/* Restore normal LEDs operation */ |
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} |
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break; |
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case(PM_IDLE): |
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{ |
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/* Entering IDLE mode - Turn leds off */ |
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} |
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break; |
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case(PM_STANDBY): |
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{ |
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/* Entering STANDBY mode - Logic for PM_STANDBY goes here */ |
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} |
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break; |
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case(PM_SLEEP): |
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{ |
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/* Entering SLEEP mode - Logic for PM_SLEEP goes here */ |
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} |
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break; |
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default: |
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{ |
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/* Should not get here */ |
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} |
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break; |
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} |
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} |
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#endif |
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/**************************************************************************** |
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* Name: led_pm_prepare |
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* |
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* Description: |
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* Request the driver to prepare for a new power state. This is a warning |
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* that the system is about to enter into a new power state. The driver |
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* should begin whatever operations that may be required to enter power |
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* state. The driver may abort the state change mode by returning a |
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* non-zero value from the callback function. |
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* |
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****************************************************************************/ |
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#ifdef CONFIG_PM |
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static int led_pm_prepare(struct pm_callback_s *cb , enum pm_state_e pmstate) |
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{ |
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/* No preparation to change power modes is required by the LEDs driver. |
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* We always accept the state change by returning OK. |
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*/ |
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return OK; |
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} |
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#endif |
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/**************************************************************************** |
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* Public Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: up_ledinit |
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****************************************************************************/ |
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#ifdef CONFIG_ARCH_LEDS |
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void up_ledinit(void) |
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{ |
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/* Configure LED1-4 GPIOs for output */ |
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stm32_configgpio(GPIO_LED1); |
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stm32_configgpio(GPIO_LED2); |
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stm32_configgpio(GPIO_LED3); |
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stm32_configgpio(GPIO_LED4); |
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} |
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/**************************************************************************** |
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* Name: up_ledon |
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****************************************************************************/ |
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void up_ledon(int led) |
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{ |
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led_setonoff(ON_BITS(g_ledbits[led])); |
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} |
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/**************************************************************************** |
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* Name: up_ledoff |
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****************************************************************************/ |
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void up_ledoff(int led) |
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{ |
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led_setonoff(OFF_BITS(g_ledbits[led])); |
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} |
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/**************************************************************************** |
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* Name: up_ledpminitialize |
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****************************************************************************/ |
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#ifdef CONFIG_PM |
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void up_ledpminitialize(void) |
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{ |
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/* Register to receive power management callbacks */ |
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int ret = pm_register(&g_ledscb); |
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if (ret != OK) |
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{ |
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up_ledon(LED_ASSERTION); |
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} |
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} |
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#endif /* CONFIG_PM */ |
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#endif /* CONFIG_ARCH_LEDS */
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