board_hw_defs.c

Go to the documentation of this file.

/*
 * This program 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.
 *
 * This program 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/>
 *
 * Additional note on redistribution: The copyright and license notices above
 * must be maintained in each individual source file that is a derivative work
 * of this source file; otherwise redistribution is prohibited.
 */

#include <pios_config.h>
#include <pios_board_info.h>

#if defined(PIOS_INCLUDE_ANNUNC)

#include <pios_annunc_priv.h>

static const struct pios_annunc pios_annuncs[] = {
        [PIOS_LED_HEARTBEAT] = {
                .pin = {
                        .gpio = GPIOC,
                        .init = {
                                .GPIO_Pin   = GPIO_Pin_4,
                                .GPIO_Speed = GPIO_Speed_50MHz,
                                .GPIO_Mode  = GPIO_Mode_OUT,
                                .GPIO_OType = GPIO_OType_PP,
                                .GPIO_PuPd = GPIO_PuPd_UP
                        },
                },
        },
        [PIOS_LED_ALARM] = {
                .pin = {
                        .gpio = GPIOC,
                        .init = {
                                .GPIO_Pin   = GPIO_Pin_5,
                                .GPIO_Speed = GPIO_Speed_50MHz,
                                .GPIO_Mode  = GPIO_Mode_OUT,
                                .GPIO_OType = GPIO_OType_PP,
                                .GPIO_PuPd = GPIO_PuPd_UP
                        },
                },
        },
};

static const struct pios_annunc_cfg pios_annunc_cfg = {
        .annunciators     = pios_annuncs,
        .num_annunciators = NELEMENTS(pios_annuncs),
};

const struct pios_annunc_cfg * PIOS_BOARD_HW_DEFS_GetLedCfg (uint32_t board_revision)
{
        (void)board_revision;
        return &pios_annunc_cfg;
}

#endif  /* PIOS_INCLUDE_ANNUNC */


#if defined(PIOS_INCLUDE_FLASH)
#include "pios_flashfs_logfs_priv.h"

static const struct flashfs_logfs_cfg flashfs_settings_internal_cfg = {
        .fs_magic      = 0x99abcedf,
        .arena_size    = 0x00004000, /* 256 * slot size */
        .slot_size     = 0x00000100, /* 256 bytes */
};

#if defined(PIOS_INCLUDE_FLASH_INTERNAL)
#include "pios_flash_internal_priv.h"

static const struct pios_flash_internal_cfg flash_internal_cfg = {
};
#endif  /* PIOS_INCLUDE_FLASH_INTERNAL */

#include "pios_flash_priv.h"

#if defined(PIOS_INCLUDE_FLASH_INTERNAL)
static const struct pios_flash_sector_range stm32f4_sectors[] = {
        {
                .base_sector = 0,
                .last_sector = 3,
                .sector_size = FLASH_SECTOR_16KB,
        },
        {
                .base_sector = 4,
                .last_sector = 4,
                .sector_size = FLASH_SECTOR_64KB,
        },
        {
                .base_sector = 5,
                .last_sector = 11,
                .sector_size = FLASH_SECTOR_128KB,
        },

};

uintptr_t pios_internal_flash_id;
static const struct pios_flash_chip pios_flash_chip_internal = {
        .driver        = &pios_internal_flash_driver,
        .chip_id       = &pios_internal_flash_id,
        .page_size     = 16, /* 128-bit rows */
        .sector_blocks = stm32f4_sectors,
        .num_blocks    = NELEMENTS(stm32f4_sectors),
};
#endif  /* PIOS_INCLUDE_FLASH_INTERNAL */

static const struct pios_flash_partition pios_flash_partition_table_internal[] = {
#if defined(PIOS_INCLUDE_FLASH_INTERNAL)
        {
                .label        = FLASH_PARTITION_LABEL_BL,
                .chip_desc    = &pios_flash_chip_internal,
                .first_sector = 0,
                .last_sector  = 1,
                .chip_offset  = 0,
                .size         = (1 - 0 + 1) * FLASH_SECTOR_16KB,
        },

        {
                .label        = FLASH_PARTITION_LABEL_SETTINGS,
                .chip_desc    = &pios_flash_chip_internal,
                .first_sector = 2,
                .last_sector  = 3,
                .chip_offset  = (2 * FLASH_SECTOR_16KB),
                .size         = (3 - 2 + 1) * FLASH_SECTOR_16KB,
        },

        {
                .label        = FLASH_PARTITION_LABEL_FW,
                .chip_desc    = &pios_flash_chip_internal,
                .first_sector = 5,
                .last_sector  = 7,
                .chip_offset  = (4 * FLASH_SECTOR_16KB) + (1 * FLASH_SECTOR_64KB),
                .size         = (7 - 5 + 1) * FLASH_SECTOR_128KB,
        },

        /* NOTE: sectors 8-11 of the internal flash are currently unallocated */

#endif /* PIOS_INCLUDE_FLASH_INTERNAL */
};

const struct pios_flash_partition *PIOS_BOARD_HW_DEFS_GetPartitionTable (uint32_t board_revision, uint32_t *num_partitions)
{
        (void)board_revision;
        PIOS_Assert(num_partitions);
        *num_partitions = NELEMENTS(pios_flash_partition_table_internal);
        return pios_flash_partition_table_internal;
}

#endif  /* PIOS_INCLUDE_FLASH */

#include <pios_usart_priv.h>

/*
 * MAIN USART
 */
static const struct pios_usart_cfg pios_usart_main_cfg = {
        .regs = USART3,
        .remap = GPIO_AF_USART3,
        .irq = {
                .init = {
                        .NVIC_IRQChannel = USART3_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_MID,
                        .NVIC_IRQChannelSubPriority = 0,
                        .NVIC_IRQChannelCmd = ENABLE,
                },
        },
        .rx = {
                .gpio = GPIOB,
                .init = {
                        .GPIO_Pin   = GPIO_Pin_11,
                        .GPIO_Speed = GPIO_Speed_2MHz,
                        .GPIO_Mode  = GPIO_Mode_AF,
                        .GPIO_OType = GPIO_OType_PP,
                        .GPIO_PuPd  = GPIO_PuPd_UP
                },
        },
        .tx = {
                .gpio = GPIOB,
                .init = {
                        .GPIO_Pin   = GPIO_Pin_10,
                        .GPIO_Speed = GPIO_Speed_2MHz,
                        .GPIO_Mode  = GPIO_Mode_AF,
                        .GPIO_OType = GPIO_OType_PP,
                        .GPIO_PuPd  = GPIO_PuPd_UP
                },
        },
};

#if defined(PIOS_INCLUDE_COM)

#include <pios_com_priv.h>

#endif /* PIOS_INCLUDE_COM */


#if defined(PIOS_INCLUDE_RTC)
/*
 * Realtime Clock (RTC)
 */
#include <pios_rtc_priv.h>

void PIOS_RTC_IRQ_Handler (void);
void RTC_WKUP_IRQHandler() __attribute__ ((alias ("PIOS_RTC_IRQ_Handler")));
static const struct pios_rtc_cfg pios_rtc_main_cfg = {
        .clksrc = RCC_RTCCLKSource_HSE_Div8, // Divide 8 Mhz crystal down to 1
        // This clock is then divided by another 16 to give a nominal 62.5 khz clock
        .prescaler = 100, // Every 100 cycles gives 625 Hz
        .irq = {
                .init = {
                        .NVIC_IRQChannel                   = RTC_WKUP_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_MID,
                        .NVIC_IRQChannelSubPriority        = 0,
                        .NVIC_IRQChannelCmd                = ENABLE,
                },
        },
};

void PIOS_RTC_IRQ_Handler (void)
{
        PIOS_RTC_irq_handler ();
}

#endif

#include "pios_tim_priv.h"

// Set up timers on APB1
// TIM2,3,4,5,6,7,12,13,14
static const TIM_TimeBaseInitTypeDef tim_apb1_time_base = {
        .TIM_Prescaler = (PIOS_PERIPHERAL_APB1_COUNTER_CLOCK / 1000000) - 1,
        .TIM_ClockDivision = TIM_CKD_DIV1,
        .TIM_CounterMode = TIM_CounterMode_Up,
        .TIM_Period = 0xFFFF,
        .TIM_RepetitionCounter = 0x0000,
};


// Set up timers on APB2
// TIM1,8,9,10,11
static const TIM_TimeBaseInitTypeDef tim_apb2_time_base = {
        .TIM_Prescaler = (PIOS_PERIPHERAL_APB2_COUNTER_CLOCK  / 1000000) - 1,
        .TIM_ClockDivision = TIM_CKD_DIV1,
        .TIM_CounterMode = TIM_CounterMode_Up,
        .TIM_Period = 0xFFFF,
        .TIM_RepetitionCounter = 0x0000,
};


static const struct pios_tim_clock_cfg tim_3_cfg = {
        .timer = TIM3,
        .time_base_init = &tim_apb1_time_base,
        .irq = {
                .init = {
                        .NVIC_IRQChannel                   = TIM3_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_MID,
                        .NVIC_IRQChannelSubPriority        = 0,
                        .NVIC_IRQChannelCmd                = ENABLE,
                },
        },
};

static const struct pios_tim_clock_cfg tim_5_cfg = {
        .timer = TIM5,
        .time_base_init = &tim_apb1_time_base,
        .irq = {
                .init = {
                        .NVIC_IRQChannel                   = TIM5_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_MID,
                        .NVIC_IRQChannelSubPriority        = 0,
                        .NVIC_IRQChannelCmd                = ENABLE,
                },
        },
};

static const struct pios_tim_clock_cfg tim_8_cfg = {
        .timer = TIM8,
        .time_base_init = &tim_apb2_time_base,
        .irq = {
                .init = {
                        .NVIC_IRQChannel                   = TIM8_CC_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_MID,
                        .NVIC_IRQChannelSubPriority        = 0,
                        .NVIC_IRQChannelCmd                = ENABLE,
                },
        },
};

static const struct pios_tim_clock_cfg tim_9_cfg = {
        .timer = TIM9,
        .time_base_init = &tim_apb2_time_base,
        .irq = {
                .init = {
                        .NVIC_IRQChannel                   = TIM1_BRK_TIM9_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_MID,
                        .NVIC_IRQChannelSubPriority        = 0,
                        .NVIC_IRQChannelCmd                = ENABLE,
                },
        },
};

static const struct pios_tim_clock_cfg tim_12_cfg = {
        .timer = TIM12,
        .time_base_init = &tim_apb1_time_base,
        .irq = {
                .init = {
                        .NVIC_IRQChannel                   = TIM8_BRK_TIM12_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_MID,
                        .NVIC_IRQChannelSubPriority        = 0,
                        .NVIC_IRQChannelCmd                = ENABLE,
                },
        },
};


#if defined(PIOS_INCLUDE_USB)
#include "pios_usb_priv.h"

static const struct pios_usb_cfg pios_usb_main_cfg = {
        .irq = {
                .init    = {
                        .NVIC_IRQChannel                   = OTG_FS_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_HIGHEST,
                        .NVIC_IRQChannelSubPriority        = 3,
                        .NVIC_IRQChannelCmd                = ENABLE,
                },
        },
};

const struct pios_usb_cfg *PIOS_BOARD_HW_DEFS_GetUsbCfg (uint32_t board_revision)
{
        (void)board_revision;
        return &pios_usb_main_cfg;
}

#include "pios_usb_board_data_priv.h"
#include "pios_usb_desc_hid_cdc_priv.h"
#include "pios_usb_desc_hid_only_priv.h"
#include "pios_usbhook.h"

#endif  /* PIOS_INCLUDE_USB */

#if defined(PIOS_INCLUDE_COM_MSG)

#include <pios_com_msg_priv.h>

#endif /* PIOS_INCLUDE_COM_MSG */

#if defined(PIOS_INCLUDE_USB_HID) && !defined(PIOS_INCLUDE_USB_CDC)
#include <pios_usb_hid_priv.h>

const struct pios_usb_hid_cfg pios_usb_hid_cfg = {
        .data_if = 0,
        .data_rx_ep = 1,
        .data_tx_ep = 1,
};
#endif /* PIOS_INCLUDE_USB_HID && !PIOS_INCLUDE_USB_CDC */

#if defined(PIOS_INCLUDE_USB_HID) && defined(PIOS_INCLUDE_USB_CDC)
#include <pios_usb_cdc_priv.h>

const struct pios_usb_cdc_cfg pios_usb_cdc_cfg = {
        .ctrl_if = 0,
        .ctrl_tx_ep = 2,

        .data_if = 1,
        .data_rx_ep = 3,
        .data_tx_ep = 3,
};

#include <pios_usb_hid_priv.h>

const struct pios_usb_hid_cfg pios_usb_hid_cfg = {
        .data_if = 2,
        .data_rx_ep = 1,
        .data_tx_ep = 1,
};
#endif  /* PIOS_INCLUDE_USB_HID && PIOS_INCLUDE_USB_CDC */


#if defined(PIOS_INCLUDE_CAN)
#include "pios_can_priv.h"
struct pios_can_cfg pios_can_cfg = {
        .regs = CAN1,
        .init = {
                // To make it easy to use both F3 and F4 use the other APB1 bus rate
                // divided by 2. This matches the baud rate across devices
                .CAN_Prescaler = 21-1,   
                .CAN_Mode = CAN_Mode_Normal,         
                .CAN_SJW = CAN_SJW_1tq,          
                .CAN_BS1 = CAN_BS1_9tq,          
                .CAN_BS2 = CAN_BS2_8tq,          
                .CAN_TTCM = DISABLE, 
                .CAN_ABOM = DISABLE,  
                .CAN_AWUM = DISABLE,  
                .CAN_NART = ENABLE,  
                .CAN_RFLM = DISABLE,  
                .CAN_TXFP = DISABLE,  
        },
        .remap = GPIO_AF_CAN1,
        .tx = {
                .gpio = GPIOB,
                .init = {
                        .GPIO_Pin   = GPIO_Pin_9,
                        .GPIO_Speed = GPIO_Speed_50MHz,
                        .GPIO_Mode  = GPIO_Mode_AF,
                        .GPIO_OType = GPIO_OType_PP,
                        .GPIO_PuPd  = GPIO_PuPd_UP
                },
                .pin_source = GPIO_PinSource9,
        },
        .rx = {
                .gpio = GPIOB,
                .init = {
                        .GPIO_Pin   = GPIO_Pin_8,
                        .GPIO_Speed = GPIO_Speed_50MHz,
                        .GPIO_Mode  = GPIO_Mode_AF,
                        .GPIO_OType = GPIO_OType_PP,
                        .GPIO_PuPd  = GPIO_PuPd_UP
                },
                .pin_source = GPIO_PinSource8,
        },
        .rx_irq = {
                .init = {
                        .NVIC_IRQChannel = CAN1_RX1_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_MID,
                        .NVIC_IRQChannelSubPriority = 0,
                        .NVIC_IRQChannelCmd = ENABLE,
                },
        },
        .tx_irq = {
                .init = {
                        .NVIC_IRQChannel = CAN1_TX_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_MID,
                        .NVIC_IRQChannelSubPriority = 0,
                        .NVIC_IRQChannelCmd = ENABLE,
                },
        },
};

#endif /* PIOS_INCLUDE_CAN */

#if defined(PIOS_INCLUDE_VIDEO)
#include <pios_video.h>

void set_bw_levels(uint8_t black, uint8_t white)
{
        TIM1->CCR1 = black;
        TIM1->CCR3 = white;
}

static const struct pios_exti_cfg pios_exti_vsync_cfg __exti_config = {
        .vector = PIOS_Vsync_ISR,
        .line   = EXTI_Line1,
        .pin    = {
                .gpio = GPIOB,
                .init = {
                        .GPIO_Pin   = GPIO_Pin_1,
                        .GPIO_Speed = GPIO_Speed_100MHz,
                        .GPIO_Mode  = GPIO_Mode_IN,
                        .GPIO_OType = GPIO_OType_OD,
                        .GPIO_PuPd  = GPIO_PuPd_NOPULL,
                },
        },
        .irq = {
                .init = {
                        .NVIC_IRQChannel                   = EXTI1_IRQn,
                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_HIGHEST,
                        .NVIC_IRQChannelSubPriority        = 0,
                        .NVIC_IRQChannelCmd                = ENABLE,
                },
        },
        .exti                                      = {
                .init                                  = {
                        .EXTI_Line    = EXTI_Line1, // matches above GPIO pin
                        .EXTI_Mode    = EXTI_Mode_Interrupt,
                        .EXTI_Trigger = EXTI_Trigger_Falling,
                        .EXTI_LineCmd = ENABLE,
                },
        },
};

const struct pios_video_cfg pios_video_cfg = {
        .mask_dma = DMA2,
        .mask                                              = {
                .regs  = SPI1,
                .remap = GPIO_AF_SPI1,
                .init  = {
                        .SPI_Mode              = SPI_Mode_Slave,
                        .SPI_Direction         = SPI_Direction_1Line_Tx,
                        .SPI_DataSize          = SPI_DataSize_8b,
                        .SPI_NSS               = SPI_NSS_Soft,
                        .SPI_FirstBit          = SPI_FirstBit_MSB,
                        .SPI_CRCPolynomial     = 7,
                        .SPI_CPOL              = SPI_CPOL_Low,
                        .SPI_CPHA              = SPI_CPHA_2Edge,
                        .SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2,
                },
                .dma     = {
                        .irq                                       = {
                                .flags = (DMA_IT_TCIF3),
                                .init  = {
                                        .NVIC_IRQChannel    = DMA2_Stream3_IRQn,
                                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_HIGHEST,
                                        .NVIC_IRQChannelSubPriority        = 0,
                                        .NVIC_IRQChannelCmd = ENABLE,
                                },
                        },
                        /*.rx = {},*/
                        .tx                                        = {
                                .channel = DMA2_Stream3,
                                .init    = {
                                        .DMA_Channel            = DMA_Channel_3,
                                        .DMA_PeripheralBaseAddr = (uint32_t)&(SPI1->DR),
                                        .DMA_DIR                = DMA_DIR_MemoryToPeripheral,
                                        .DMA_BufferSize         = BUFFER_WIDTH,
                                        .DMA_PeripheralInc      = DMA_PeripheralInc_Disable,
                                        .DMA_MemoryInc          = DMA_MemoryInc_Enable,
                                        .DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte,
                                        .DMA_MemoryDataSize     = DMA_MemoryDataSize_Word,
                                        .DMA_Mode               = DMA_Mode_Normal,
                                        .DMA_Priority           = DMA_Priority_VeryHigh,
                                        .DMA_FIFOMode           = DMA_FIFOMode_Enable,
                                        .DMA_FIFOThreshold      = DMA_FIFOThreshold_Full,
                                        .DMA_MemoryBurst        = DMA_MemoryBurst_INC4,
                                        .DMA_PeripheralBurst    = DMA_PeripheralBurst_Single,
                                },
                        },
                },
                .sclk                                          = {
                        .gpio = GPIOA,
                        .init = {
                                .GPIO_Pin   = GPIO_Pin_5,
                                .GPIO_Speed = GPIO_Speed_100MHz,
                                .GPIO_Mode  = GPIO_Mode_AF,
                                .GPIO_OType = GPIO_OType_PP,
                                .GPIO_PuPd  = GPIO_PuPd_NOPULL
                        },
                },
                .miso                                          = {
                        .gpio = GPIOA,
                        .init = {
                                .GPIO_Pin   = GPIO_Pin_6,
                                .GPIO_Speed = GPIO_Speed_50MHz,
                                .GPIO_Mode  = GPIO_Mode_AF,
                                .GPIO_OType = GPIO_OType_PP,
                                .GPIO_PuPd  = GPIO_PuPd_NOPULL
                        },
                },
                .slave_count                                   = 1,
        },
        .level_dma = DMA1,
        .level                                             = {
                .regs  = SPI2,
                .remap = GPIO_AF_SPI2,
                .init  = {
                        .SPI_Mode              = SPI_Mode_Slave,
                        .SPI_Direction         = SPI_Direction_1Line_Tx,
                        .SPI_DataSize          = SPI_DataSize_8b,
                        .SPI_NSS               = SPI_NSS_Soft,
                        .SPI_FirstBit          = SPI_FirstBit_MSB,
                        .SPI_CRCPolynomial     = 7,
                        .SPI_CPOL              = SPI_CPOL_Low,
                        .SPI_CPHA              = SPI_CPHA_2Edge,
                        .SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2,
                },
                .dma     = {
                        .irq                                       = {
                                .flags = (DMA_IT_TCIF4),
                                .init  = {
                                        .NVIC_IRQChannel    = DMA1_Stream4_IRQn,
                                        .NVIC_IRQChannelPreemptionPriority = PIOS_IRQ_PRIO_HIGHEST,
                                        .NVIC_IRQChannelSubPriority        = 0,
                                        .NVIC_IRQChannelCmd = ENABLE,
                                },
                        },
                        /*.rx = {},*/
                        .tx                                        = {
                                .channel = DMA1_Stream4,
                                .init    = {
                                        .DMA_Channel            = DMA_Channel_0,
                                        .DMA_PeripheralBaseAddr = (uint32_t)&(SPI2->DR),
                                        .DMA_DIR                = DMA_DIR_MemoryToPeripheral,
                                        .DMA_BufferSize         = BUFFER_WIDTH,
                                        .DMA_PeripheralInc      = DMA_PeripheralInc_Disable,
                                        .DMA_MemoryInc          = DMA_MemoryInc_Enable,
                                        .DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte,
                                        .DMA_MemoryDataSize     = DMA_MemoryDataSize_Word,
                                        .DMA_Mode               = DMA_Mode_Normal,
                                        .DMA_Priority           = DMA_Priority_VeryHigh,
                                        .DMA_FIFOMode           = DMA_FIFOMode_Enable,
                                        .DMA_FIFOThreshold      = DMA_FIFOThreshold_Full,
                                        .DMA_MemoryBurst        = DMA_MemoryBurst_INC4,
                                        .DMA_PeripheralBurst    = DMA_PeripheralBurst_Single,
                                },
                        },
                },
                .sclk                                          = {
                        .gpio = GPIOB,
                        .init = {
                                .GPIO_Pin   = GPIO_Pin_13,
                                .GPIO_Speed = GPIO_Speed_100MHz,
                                .GPIO_Mode  = GPIO_Mode_AF,
                                .GPIO_OType = GPIO_OType_PP,
                                .GPIO_PuPd  = GPIO_PuPd_UP
                        },
                },
                .miso                                          = {
                        .gpio = GPIOC,
                        .init = {
                                .GPIO_Pin   = GPIO_Pin_2,
                                .GPIO_Speed = GPIO_Speed_50MHz,
                                .GPIO_Mode  = GPIO_Mode_AF,
                                .GPIO_OType = GPIO_OType_PP,
                                .GPIO_PuPd  = GPIO_PuPd_UP
                        },
                },
                .slave_count                                   = 1,
        },

        .vsync = &pios_exti_vsync_cfg,

        .hsync_capture                                     = {
                .timer = TIM2,
                .timer_chan                                    = TIM_Channel_2,
                .pin   = {
                        .gpio = GPIOB,
                        .init = {
                                .GPIO_Pin   = GPIO_Pin_3,
                                .GPIO_Speed = GPIO_Speed_100MHz,
                                .GPIO_Mode  = GPIO_Mode_AF,
                                .GPIO_OType = GPIO_OType_PP,
                                .GPIO_PuPd  = GPIO_PuPd_UP
                        },
                        .pin_source                                = GPIO_PinSource3,
                },
                .remap                                         = GPIO_AF_TIM2,
        },

        .pixel_timer                                       = {
                .timer = TIM3,
                .timer_chan                                    = TIM_Channel_1,
                .pin   = {
                        .gpio = GPIOB,
                        .init = {
                                .GPIO_Pin   = GPIO_Pin_4,
                                .GPIO_Speed = GPIO_Speed_100MHz,
                                .GPIO_Mode  = GPIO_Mode_AF,
                                .GPIO_OType = GPIO_OType_PP,
                                .GPIO_PuPd  = GPIO_PuPd_UP
                        },
                        .pin_source                                = GPIO_PinSource4,
                },
                .remap                                         = GPIO_AF_TIM3,
        },

        .tim_oc_init                                       = {
                .TIM_OCMode       = TIM_OCMode_PWM1,
                .TIM_OutputState  = TIM_OutputState_Enable,
                .TIM_OutputNState = TIM_OutputNState_Disable,
                .TIM_Pulse        = 1,
                .TIM_OCPolarity   = TIM_OCPolarity_High,
                .TIM_OCNPolarity  = TIM_OCPolarity_High,
                .TIM_OCIdleState  = TIM_OCIdleState_Reset,
                .TIM_OCNIdleState = TIM_OCNIdleState_Reset,
        },
        .set_bw_levels = set_bw_levels,
};

#endif /* if defined(PIOS_INCLUDE_VIDEO) */

#if defined(PIOS_INCLUDE_SPI)
#include <pios_spi_priv.h>

/*
 * SPI3 Interface
 * Used for MAX7456
 */
static const struct pios_spi_cfg pios_spi_max7456_cfg = {
        .regs = SPI3,
        .remap = GPIO_AF_SPI3,
        .init = {
                .SPI_Mode              = SPI_Mode_Master,
                .SPI_Direction         = SPI_Direction_2Lines_FullDuplex,
                .SPI_DataSize          = SPI_DataSize_8b,
                .SPI_NSS               = SPI_NSS_Soft,
                .SPI_FirstBit          = SPI_FirstBit_MSB,
                .SPI_CRCPolynomial     = 7,
                .SPI_CPOL              = SPI_CPOL_Low,
                .SPI_CPHA              = SPI_CPHA_1Edge,
                .SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8,
        },
        .sclk = {
                .gpio = GPIOC,
                .init = {
                        .GPIO_Pin = GPIO_Pin_10,
                        .GPIO_Speed = GPIO_Speed_100MHz,
                        .GPIO_Mode = GPIO_Mode_AF,
                        .GPIO_OType = GPIO_OType_PP,
                        .GPIO_PuPd = GPIO_PuPd_NOPULL
                },
        },
        .miso = {
                .gpio = GPIOC,
                .init = {
                        .GPIO_Pin = GPIO_Pin_11,
                        .GPIO_Speed = GPIO_Speed_50MHz,
                        .GPIO_Mode = GPIO_Mode_AF,
                        .GPIO_OType = GPIO_OType_PP,
                        .GPIO_PuPd = GPIO_PuPd_NOPULL
                },
        },
        .mosi = {
                .gpio = GPIOC,
                .init = {
                        .GPIO_Pin = GPIO_Pin_12,
                        .GPIO_Speed = GPIO_Speed_50MHz,
                        .GPIO_Mode = GPIO_Mode_AF,
                        .GPIO_OType = GPIO_OType_PP,
                        .GPIO_PuPd = GPIO_PuPd_NOPULL
                },
        },
        .slave_count = 1,
        .ssel = {
                { // MAX7456
                        .gpio = GPIOA,
                        .init = {
                                .GPIO_Pin = GPIO_Pin_15,
                                .GPIO_Speed = GPIO_Speed_50MHz,
                                .GPIO_Mode  = GPIO_Mode_OUT,
                                .GPIO_OType = GPIO_OType_PP,
                                .GPIO_PuPd = GPIO_PuPd_UP
                        }
                },
        },
};

pios_spi_t pios_spi_max7456_id;

#endif // defined(PIOS_INCLUDE_SPI)