/************************************************************************************
 * nuttx-configs/omnibus-f4sd/include/board.h
 * include/arch/board/board.h
 *
 *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *
 *   Copyright (c) 2018 PX4 Development Team. All rights reserved.
 *   Author: Nathan Tsoi <nathan@vertile.com>
 *
 * 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.
 *
 ************************************************************************************/

#ifndef __CONFIG_OMNIBUSF4SD_INCLUDE_BOARD_H
#define __CONFIG_OMNIBUSF4SD_INCLUDE_BOARD_H

/************************************************************************************
 * Included Files
 ************************************************************************************/
#include "board_dma_map.h"

#include <nuttx/config.h>

#ifndef __ASSEMBLY__
# include <stdint.h>
#endif

#include "stm32_rcc.h"
#include "stm32_sdio.h"
#include "stm32.h"

/************************************************************************************
 * Definitions
 ************************************************************************************/

/* Clocking *************************************************************************/
/* The omnibusf4sd board features a single 8MHz crystal.  Space is provided
 * for a 32kHz RTC backup crystal, but it is not stuffed.
 *
 * This is the canonical configuration:
 *   System Clock source           : PLL (HSE)
 *   SYSCLK(Hz)                    : 168000000    Determined by PLL configuration
 *   HCLK(Hz)                      : 168000000    (STM32_RCC_CFGR_HPRE)
 *   AHB Prescaler                 : 1            (STM32_RCC_CFGR_HPRE)
 *   APB1 Prescaler                : 4            (STM32_RCC_CFGR_PPRE1)
 *   APB2 Prescaler                : 2            (STM32_RCC_CFGR_PPRE2)
 *   HSE Frequency(Hz)             : 8000000      (STM32_BOARD_XTAL)
 *   PLLM                          : 8            (STM32_PLLCFG_PLLM)
 *   PLLN                          : 336          (STM32_PLLCFG_PLLN)
 *   PLLP                          : 2            (STM32_PLLCFG_PLLP)
 *   PLLQ                          : 7            (STM32_PLLCFG_PLLQ)
 *   Main regulator output voltage : Scale1 mode  Needed for high speed SYSCLK
 *   Flash Latency(WS)             : 5
 *   Prefetch Buffer               : OFF
 *   Instruction cache             : ON
 *   Data cache                    : ON
 *   Require 48MHz for USB OTG FS, : Enabled
 *   SDIO and RNG clock
 */

/* HSI - 16 MHz RC factory-trimmed
 * LSI - 32 KHz RC
 * HSE - On-board crystal frequency is 8MHz
 * LSE - 32.768 kHz
 */

#define STM32_BOARD_XTAL        8000000ul

#define STM32_HSI_FREQUENCY     16000000ul
#define STM32_LSI_FREQUENCY     32000
#define STM32_HSE_FREQUENCY     STM32_BOARD_XTAL
#define STM32_LSE_FREQUENCY     32768

/* Main PLL Configuration.
 *
 * PLL source is HSE
 * PLL_VCO = (STM32_HSE_FREQUENCY / PLLM) * PLLN
 *         = (8,000,000 / 8) * 336
 *         = 336,000,000
 * SYSCLK  = PLL_VCO / PLLP
 *         = 336,000,000 / 2 = 168,000,000
 * USB OTG FS, SDIO and RNG Clock
 *         =  PLL_VCO / PLLQ
 *         = 48,000,000
 */

#define STM32_PLLCFG_PLLM       RCC_PLLCFG_PLLM(8)
#define STM32_PLLCFG_PLLN       RCC_PLLCFG_PLLN(336)
#define STM32_PLLCFG_PLLP       RCC_PLLCFG_PLLP_2
#define STM32_PLLCFG_PLLQ       RCC_PLLCFG_PLLQ(7)

#define STM32_SYSCLK_FREQUENCY  168000000ul

/* AHB clock (HCLK) is SYSCLK (168MHz) */

#define STM32_RCC_CFGR_HPRE     RCC_CFGR_HPRE_SYSCLK  /* HCLK  = SYSCLK / 1 */
#define STM32_HCLK_FREQUENCY    STM32_SYSCLK_FREQUENCY
#define STM32_BOARD_HCLK        STM32_HCLK_FREQUENCY  /* same as above, to satisfy compiler */

/* APB1 clock (PCLK1) is HCLK/4 (42MHz) */

#define STM32_RCC_CFGR_PPRE1    RCC_CFGR_PPRE1_HCLKd4     /* PCLK1 = HCLK / 4 */
#define STM32_PCLK1_FREQUENCY   (STM32_HCLK_FREQUENCY/4)

/* Timers driven from APB1 will be twice PCLK1 */

#define STM32_APB1_TIM2_CLKIN   (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM3_CLKIN   (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM4_CLKIN   (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM5_CLKIN   (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM6_CLKIN   (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM7_CLKIN   (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM12_CLKIN  (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM13_CLKIN  (2*STM32_PCLK1_FREQUENCY)
#define STM32_APB1_TIM14_CLKIN  (2*STM32_PCLK1_FREQUENCY)

/* APB2 clock (PCLK2) is HCLK/2 (84MHz) */

#define STM32_RCC_CFGR_PPRE2    RCC_CFGR_PPRE2_HCLKd2     /* PCLK2 = HCLK / 2 */
#define STM32_PCLK2_FREQUENCY   (STM32_HCLK_FREQUENCY/2)

/* Timers driven from APB2 will be twice PCLK2 */

#define STM32_APB2_TIM1_CLKIN   (2*STM32_PCLK2_FREQUENCY)
#define STM32_APB2_TIM8_CLKIN   (2*STM32_PCLK2_FREQUENCY)
#define STM32_APB2_TIM9_CLKIN   (2*STM32_PCLK2_FREQUENCY)
#define STM32_APB2_TIM10_CLKIN  (2*STM32_PCLK2_FREQUENCY)
#define STM32_APB2_TIM11_CLKIN  (2*STM32_PCLK2_FREQUENCY)

/* Timer Frequencies, if APBx is set to 1, frequency is same to APBx
 * otherwise frequency is 2xAPBx.
 * Note: TIM1,8-11 are on APB2, others on APB1
 */

#define BOARD_TIM1_FREQUENCY    STM32_APB2_TIM1_CLKIN
#define BOARD_TIM2_FREQUENCY    STM32_APB1_TIM2_CLKIN
#define BOARD_TIM3_FREQUENCY    STM32_APB1_TIM3_CLKIN
#define BOARD_TIM4_FREQUENCY    STM32_APB1_TIM4_CLKIN
#define BOARD_TIM5_FREQUENCY    STM32_APB1_TIM5_CLKIN
#define BOARD_TIM6_FREQUENCY    STM32_APB1_TIM6_CLKIN
#define BOARD_TIM7_FREQUENCY    STM32_APB1_TIM7_CLKIN
#define BOARD_TIM8_FREQUENCY    STM32_APB2_TIM8_CLKIN
#define BOARD_TIM9_FREQUENCY    STM32_APB2_TIM9_CLKIN
#define BOARD_TIM10_FREQUENCY   STM32_APB2_TIM10_CLKIN
#define BOARD_TIM11_FREQUENCY   STM32_APB2_TIM11_CLKIN
#define BOARD_TIM12_FREQUENCY   STM32_APB1_TIM12_CLKIN
#define BOARD_TIM13_FREQUENCY   STM32_APB1_TIM13_CLKIN
#define BOARD_TIM14_FREQUENCY   STM32_APB1_TIM14_CLKIN

/* SDIO dividers.  Note that slower clocking is required when DMA is disabled
 * in order to avoid RX overrun/TX underrun errors due to delayed responses
 * to service FIFOs in interrupt driven mode.  These values have not been
 * tuned!!!
 *
 * SDIOCLK=48MHz, SDIO_CK=SDIOCLK/(118+2)=400 KHz
 */

#define SDIO_INIT_CLKDIV        (118 << SDIO_CLKCR_CLKDIV_SHIFT)

/* DMA ON:  SDIOCLK=48MHz, SDIO_CK=SDIOCLK/(1+2)=16 MHz
 * DMA OFF: SDIOCLK=48MHz, SDIO_CK=SDIOCLK/(2+2)=12 MHz
 */

#ifdef CONFIG_STM32_SDIO_DMA
#  define SDIO_MMCXFR_CLKDIV    (1 << SDIO_CLKCR_CLKDIV_SHIFT)
#else
#  define SDIO_MMCXFR_CLKDIV    (2 << SDIO_CLKCR_CLKDIV_SHIFT)
#endif

/* DMA ON:  SDIOCLK=48MHz, SDIO_CK=SDIOCLK/(1+2)=16 MHz
 * DMA OFF: SDIOCLK=48MHz, SDIO_CK=SDIOCLK/(2+2)=12 MHz
 */

#ifdef CONFIG_STM32_SDIO_DMA
#  define SDIO_SDXFR_CLKDIV     (1 << SDIO_CLKCR_CLKDIV_SHIFT)
#else
#  define SDIO_SDXFR_CLKDIV     (2 << SDIO_CLKCR_CLKDIV_SHIFT)
#endif

/* LED definitions ******************************************************************/
/* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in any
 * way.  The following definitions are used to access individual LEDs.
 */

/* LED index values for use with stm32_setled() */

#define BOARD_LED1        0
//#define BOARD_LED2        1
#define BOARD_NLEDS       1

#define BOARD_LED_BLUE    BOARD_LED1
//#define BOARD_LED_RED     BOARD_LED2

/* LED bits for use with stm32_setleds() */

#define BOARD_LED1_BIT    (1 << BOARD_LED1)
#define BOARD_LED2_BIT    (1 << BOARD_LED2)

/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the 2 LEDs on board the
 * omnibusf4sd.  The following definitions describe how NuttX controls the LEDs:
 */

#define LED_STARTED       0  /* LED1 */
#define LED_HEAPALLOCATE  1  /* LED2 */
#define LED_IRQSENABLED   2  /* LED1 */
#define LED_STACKCREATED  3  /* LED1 + LED2 */
#define LED_INIRQ         4  /* LED1 */
#define LED_SIGNAL        5  /* LED2 */
#define LED_ASSERTION     6  /* LED1 + LED2 */
#define LED_PANIC         7  /* LED1 + LED2 */

/* Alternate function pin selections ************************************************/

/* UART1:
 *
 * PA10 (RX) and PA9 (TX) are broken out on J5
 */

#define GPIO_USART1_RX GPIO_USART1_RX_1
#define GPIO_USART1_TX GPIO_USART1_TX_1

/* USART3:
 *
 * PC10 (TX) and PC11 (RX) are broken out on J4
 *
 * However, this port is shared with SPI3 which contains the BMP280 and MAX7456
 *
 * The Silkscreen pin labeled SCL is TX
 *                           MISO is RX
 */
//#define GPIO_USART3_RX	GPIO_USART3_RX_2
//#define GPIO_USART3_TX	GPIO_USART3_TX_2

/* UART4:
 *
 * PA0 (TX) -- Labeled RSSI on the silkscreen is only broken out on a test pad
 *             on the pro version. It's on a 2.54mm header on other versions
 * PA1 (RX) -- Motor 5 out
 */
#define GPIO_UART4_RX	GPIO_UART4_RX_1
#define GPIO_UART4_TX	GPIO_UART4_TX_1

/* UART6:
 *
 * PC6 (TX) and PC7 (RX) are broken out on J10
 */

#define GPIO_USART6_RX GPIO_USART6_RX_1
#define GPIO_USART6_TX GPIO_USART6_TX_1

/* SPI1:
 *  MPU6000
 *  CS: PA4 -- configured in board_config.h
 *  CLK: PA5
 *  MISO: PA6
 *  MOSI: PA7
 */

#define GPIO_SPI1_SCK  GPIO_SPI1_SCK_1
#define GPIO_SPI1_MISO GPIO_SPI1_MISO_1
#define GPIO_SPI1_MOSI GPIO_SPI1_MOSI_1

/* SPI2:
 *  SD Card
 *  CS: PB12 -- configured in board_config.h
 *  CLK: PB13
 *  MISO: PB14
 *  MOSI: PB15
 */

#define GPIO_SPI2_SCK	  GPIO_SPI2_SCK_2
#define GPIO_SPI2_MISO	GPIO_SPI2_MISO_1
#define GPIO_SPI2_MOSI	GPIO_SPI2_MOSI_1

/* SPI3:
 *  BMP280
 *  CS: PB3 -- configured in board_config.h
 *  CLK: PC10
 *  MISO: PC11
 *  MOSI: PC12
 */

#define GPIO_SPI3_SCK  GPIO_SPI3_SCK_2
#define GPIO_SPI3_MISO GPIO_SPI3_MISO_2
#define GPIO_SPI3_MOSI GPIO_SPI3_MOSI_2

/*
 * I2C (external)
 *
 * SCL: PB10
 * SDA: PB11
 *
 * TODO:
 *   The optional _GPIO configurations allow the I2C driver to manually
 *   reset the bus to clear stuck slaves.  They match the pin configuration,
 *   but are normally-high GPIOs.
 */
#define GPIO_I2C2_SCL		GPIO_I2C2_SCL_1
#define GPIO_I2C2_SDA		GPIO_I2C2_SDA_1

#endif  /* __CONFIG_OMNIBUSF4SD_INCLUDE_BOARD_H */