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stm32: Minor code movement in fdcan.c 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-10-04 11:25:57 -04:00
parent 2d4ce1b9b1
commit 465aaf383f
1 changed files with 41 additions and 37 deletions
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78
src/stm32/fdcan.c
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@ -1,51 +1,22 @@
// Serial over CAN emulation for STM32 boards.
// FDCAN support on stm32 chips
//
// Copyright (C) 2021-2022 Kevin O'Connor <kevin@koconnor.net>
// Copyright (C) 2019 Eug Krashtan <eug.krashtan@gmail.com>
// Copyright (C) 2020 Pontus Borg <glpontus@gmail.com>
// Copyright (C) 2021 Kevin O'Connor <kevin@koconnor.net>
//
// This file may be distributed under the terms of the GNU GPLv3 license.
#include <string.h> // memcpy
#include "autoconf.h" // CONFIG_MACH_STM32F1
#include "board/irq.h" // irq_disable
#include "command.h" // DECL_CONSTANT_STR
#include "generic/armcm_boot.h" // armcm_enable_irq
#include "generic/canbus.h" // canbus_notify_tx
#include "generic/canserial.h" // CANBUS_ID_ADMIN
#include "generic/serial_irq.h" // serial_rx_byte
#include "internal.h" // enable_pclock
#include "sched.h" // DECL_INIT
typedef struct
{
__IO uint32_t id_section;
__IO uint32_t dlc_section;
__IO uint32_t data[64 / 4];
}FDCAN_FIFO_TypeDef;
#define FDCAN_XTD (1<<30)
#define FDCAN_RTR (1<<29)
typedef struct
{
__IO uint32_t FLS[28]; // Filter list standard
__IO uint32_t FLE[16]; // Filter list extended
FDCAN_FIFO_TypeDef RXF0[3];
FDCAN_FIFO_TypeDef RXF1[3];
__IO uint32_t TEF[6]; // Tx event FIFO
FDCAN_FIFO_TypeDef TXFIFO[3];
}FDCAN_MSG_RAM_TypeDef;
typedef struct
{
FDCAN_MSG_RAM_TypeDef fdcan1;
FDCAN_MSG_RAM_TypeDef fdcan2;
}FDCAN_RAM_TypeDef;
FDCAN_RAM_TypeDef *fdcan_ram = (FDCAN_RAM_TypeDef *)(SRAMCAN_BASE);
#define FDCAN_IE_TC (FDCAN_IE_TCE | FDCAN_IE_TCFE | FDCAN_IE_TFEE)
/****************************************************************
* Pin configuration
****************************************************************/
#if CONFIG_STM32_CANBUS_PA11_PA12
DECL_CONSTANT_STR("RESERVE_PINS_CAN", "PA11,PA12");
@ -89,9 +60,42 @@ FDCAN_RAM_TypeDef *fdcan_ram = (FDCAN_RAM_TypeDef *)(SRAMCAN_BASE);
#define CAN_FUNCTION GPIO_FUNCTION(9) // Alternative function mapping number
#endif
#ifndef SOC_CAN
#error No known CAN device for configured MCU
#endif
/****************************************************************
* Message ram layout
****************************************************************/
typedef struct {
__IO uint32_t id_section;
__IO uint32_t dlc_section;
__IO uint32_t data[64 / 4];
} FDCAN_FIFO_TypeDef;
#define FDCAN_XTD (1<<30)
#define FDCAN_RTR (1<<29)
typedef struct {
__IO uint32_t FLS[28]; // Filter list standard
__IO uint32_t FLE[16]; // Filter list extended
FDCAN_FIFO_TypeDef RXF0[3];
FDCAN_FIFO_TypeDef RXF1[3];
__IO uint32_t TEF[6]; // Tx event FIFO
FDCAN_FIFO_TypeDef TXFIFO[3];
} FDCAN_MSG_RAM_TypeDef;
typedef struct {
FDCAN_MSG_RAM_TypeDef fdcan1;
FDCAN_MSG_RAM_TypeDef fdcan2;
} FDCAN_RAM_TypeDef;
FDCAN_RAM_TypeDef *fdcan_ram = (FDCAN_RAM_TypeDef *)(SRAMCAN_BASE);
/****************************************************************
* CANbus code
****************************************************************/
#define FDCAN_IE_TC (FDCAN_IE_TCE | FDCAN_IE_TCFE | FDCAN_IE_TFEE)
// Transmit a packet
int