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https://bitbucket.org/librepilot/librepilot.git
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7f00e88321
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2250 ebee16cc-31ac-478f-84a7-5cbb03baadba
291 lines
8.7 KiB
C
291 lines
8.7 KiB
C
/**
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******************************************************************************
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* @addtogroup OpenPilotBL OpenPilot BootLoader
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* @brief These files contain the code to the OpenPilot MB Bootloader.
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*
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* @{
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* @file main.c
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
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* @brief This is the file with the main function of the OpenPilot BootLoader
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* @see The GNU Public License (GPL) Version 3
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* Bootloader Includes */
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#include <pios.h>
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#include "pios_opahrs.h"
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#include "stopwatch.h"
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#include "op_dfu.h"
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#include "usb_lib.h"
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#include "pios_iap.h"
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#include "ssp.h"
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#include "fifo_buffer.h"
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/* Prototype of PIOS_Board_Init() function */
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extern void PIOS_Board_Init(void);
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extern void FLASH_Download();
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#define BSL_HOLD_STATE ((PIOS_USB_DETECT_GPIO_PORT->IDR & PIOS_USB_DETECT_GPIO_PIN) ? 0 : 1)
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/* Private typedef -----------------------------------------------------------*/
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typedef void (*pFunction)(void);
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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pFunction Jump_To_Application;
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uint32_t JumpAddress;
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/// LEDs PWM
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uint32_t period1 = 50; // *100 uS -> 5 mS
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uint32_t sweep_steps1 = 100; // * 5 mS -> 500 mS
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uint32_t period2 = 50; // *100 uS -> 5 mS
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uint32_t sweep_steps2 = 100; // * 5 mS -> 500 mS
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////////////////////////////////////////
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uint8_t tempcount=0;
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/// SSP SECTION
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/// SSP TIME SOURCE
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#define SSP_TIMER TIM7
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uint32_t ssp_time=0;
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#define MAX_PACKET_DATA_LEN 255
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#define MAX_PACKET_BUF_SIZE (1+1+MAX_PACKET_DATA_LEN+2)
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#define UART_BUFFER_SIZE 1024
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uint8_t rx_buffer[UART_BUFFER_SIZE] __attribute__ ((aligned(4))); // align to 32-bit to try and provide speed improvement;
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// master buffers...
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uint8_t SSP_TxBuf[MAX_PACKET_BUF_SIZE];
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uint8_t SSP_RxBuf[MAX_PACKET_BUF_SIZE];
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void SSP_CallBack(uint8_t *buf, uint16_t len);
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int16_t SSP_SerialRead(void);
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void SSP_SerialWrite( uint8_t);
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uint32_t SSP_GetTime(void);
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PortConfig_t SSP_PortConfig = { .rxBuf = SSP_RxBuf,
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.rxBufSize = MAX_PACKET_DATA_LEN, .txBuf = SSP_TxBuf,
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.txBufSize = MAX_PACKET_DATA_LEN, .max_retry = 10, .timeoutLen = 1000,
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.pfCallBack = SSP_CallBack, .pfSerialRead = SSP_SerialRead,
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.pfSerialWrite = SSP_SerialWrite, .pfGetTime = SSP_GetTime, };
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Port_t ssp_port;
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t_fifo_buffer ssp_buffer;
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/* Extern variables ----------------------------------------------------------*/
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DFUStates DeviceState;
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DFUPort ProgPort;
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int16_t status=0;
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uint8_t JumpToApp = FALSE;
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uint8_t GO_dfu = FALSE;
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uint8_t USB_connected = FALSE;
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uint8_t User_DFU_request = FALSE;
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static uint8_t mReceive_Buffer[64];
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/* Private function prototypes -----------------------------------------------*/
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uint32_t LedPWM(uint32_t pwm_period, uint32_t pwm_sweep_steps, uint32_t count);
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uint8_t processRX();
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void jump_to_app();
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uint32_t sspTimeSource();
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#define BLUE LED1
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#define RED LED2
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#define LED_PWM_TIMER TIM6
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int main() {
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/* NOTE: Do NOT modify the following start-up sequence */
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/* Any new initialization functions should be added in OpenPilotInit() */
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/* Brings up System using CMSIS functions, enables the LEDs. */
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PIOS_SYS_Init();
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if (BSL_HOLD_STATE == 0)
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USB_connected = TRUE;
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PIOS_IAP_Init();
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if (PIOS_IAP_CheckRequest() == TRUE) {
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PIOS_Board_Init();
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PIOS_DELAY_WaitmS(1000);
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User_DFU_request = TRUE;
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PIOS_IAP_ClearRequest();
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}
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GO_dfu = (USB_connected == TRUE) || (User_DFU_request == TRUE);
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if (GO_dfu == TRUE) {
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if (USB_connected)
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ProgPort = Usb;
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else
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ProgPort = Serial;
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PIOS_Board_Init();
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PIOS_OPAHRS_Init();
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if(User_DFU_request == TRUE)
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DeviceState = DFUidle;
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else
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DeviceState = BLidle;
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STOPWATCH_Init(100,LED_PWM_TIMER);
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if (ProgPort == Serial) {
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fifoBuf_init(&ssp_buffer,rx_buffer,UART_BUFFER_SIZE);
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STOPWATCH_Init(100,SSP_TIMER);//nao devia ser 1000?
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STOPWATCH_Reset(SSP_TIMER);
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ssp_Init(&ssp_port, &SSP_PortConfig);
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}
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PIOS_SPI_RC_PinSet(PIOS_OPAHRS_SPI, 0);
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} else
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JumpToApp = TRUE;
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STOPWATCH_Reset(LED_PWM_TIMER);
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while (TRUE) {
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if (ProgPort == Serial) {
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ssp_ReceiveProcess(&ssp_port);
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status=ssp_SendProcess(&ssp_port);
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while((status!=SSP_TX_IDLE) && (status!=SSP_TX_ACKED)){
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ssp_ReceiveProcess(&ssp_port);
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status=ssp_SendProcess(&ssp_port);
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}
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}
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if (JumpToApp == TRUE)
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jump_to_app();
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//pwm_period = 50; // *100 uS -> 5 mS
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//pwm_sweep_steps =100; // * 5 mS -> 500 mS
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switch (DeviceState) {
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case Last_operation_Success:
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case uploadingStarting:
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case DFUidle:
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period1 = 50;
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sweep_steps1 = 100;
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PIOS_LED_Off(RED);
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period2 = 0;
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break;
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case uploading:
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period1 = 50;
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sweep_steps1 = 100;
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period2 = 25;
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sweep_steps2 = 50;
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break;
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case downloading:
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period1 = 25;
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sweep_steps1 = 50;
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PIOS_LED_Off(RED);
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period2 = 0;
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break;
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case BLidle:
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period1 = 0;
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PIOS_LED_On(BLUE);
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period2 = 0;
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break;
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default://error
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period1 = 50;
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sweep_steps1 = 100;
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period2 = 50;
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sweep_steps2 = 100;
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}
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if (period1 != 0) {
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if (LedPWM(period1, sweep_steps1, STOPWATCH_ValueGet(LED_PWM_TIMER)))
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PIOS_LED_On(BLUE);
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else
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PIOS_LED_Off(BLUE);
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} else
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PIOS_LED_On(BLUE);
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if (period2 != 0) {
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if (LedPWM(period2, sweep_steps2, STOPWATCH_ValueGet(LED_PWM_TIMER)))
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PIOS_LED_On(RED);
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else
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PIOS_LED_Off(RED);
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} else
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PIOS_LED_Off(RED);
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if (STOPWATCH_ValueGet(LED_PWM_TIMER) > 100 * 50 * 100)
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STOPWATCH_Reset(LED_PWM_TIMER);
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if ((STOPWATCH_ValueGet(LED_PWM_TIMER) > 60000) && (DeviceState == BLidle))
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JumpToApp = TRUE;
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processRX();
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DataDownload(start);
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}
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}
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void jump_to_app() {
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if (((*(__IO uint32_t*) START_OF_USER_CODE) & 0x2FFE0000) == 0x20000000) { /* Jump to user application */
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FLASH_Lock();
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RCC_APB2PeriphResetCmd(0xffffffff, ENABLE);
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RCC_APB1PeriphResetCmd(0xffffffff, ENABLE);
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RCC_APB2PeriphResetCmd(0xffffffff, DISABLE);
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RCC_APB1PeriphResetCmd(0xffffffff, DISABLE);
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_SetCNTR(0); // clear interrupt mask
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_SetISTR(0); // clear all requests
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JumpAddress = *(__IO uint32_t*) (START_OF_USER_CODE + 4);
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Jump_To_Application = (pFunction) JumpAddress;
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/* Initialize user application's Stack Pointer */
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__set_MSP(*(__IO uint32_t*) START_OF_USER_CODE);
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Jump_To_Application();
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} else {
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DeviceState = failed_jump;
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return;
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}
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}
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uint32_t LedPWM(uint32_t pwm_period, uint32_t pwm_sweep_steps, uint32_t count) {
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uint32_t pwm_duty = ((count / pwm_period) % pwm_sweep_steps)
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/ (pwm_sweep_steps / pwm_period);
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if ((count % (2 * pwm_period * pwm_sweep_steps)) > pwm_period
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* pwm_sweep_steps)
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pwm_duty = pwm_period - pwm_duty; // negative direction each 50*100 ticks
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return ((count % pwm_period) > pwm_duty) ? 1 : 0;
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}
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uint8_t processRX() {
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if (ProgPort == Usb) {
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while (PIOS_COM_ReceiveBufferUsed(PIOS_COM_TELEM_USB) >= 63) {
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for (int32_t x = 0; x < 63; ++x) {
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mReceive_Buffer[x] = PIOS_COM_ReceiveBuffer(PIOS_COM_TELEM_USB);
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}
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processComand(mReceive_Buffer);
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}
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} else if (ProgPort == Serial) {
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if (fifoBuf_getUsed(&ssp_buffer) >= 63) {
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for (int32_t x = 0; x < 63; ++x) {
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mReceive_Buffer[x] = fifoBuf_getByte(&ssp_buffer);
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}
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processComand(mReceive_Buffer);
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}
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}
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return TRUE;
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}
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uint32_t sspTimeSource() {
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if (STOPWATCH_ValueGet(SSP_TIMER) > 5000) {
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++ssp_time;
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STOPWATCH_Reset(SSP_TIMER);
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}
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return ssp_time;
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}
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void SSP_CallBack(uint8_t *buf, uint16_t len) {
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fifoBuf_putData(&ssp_buffer, buf, len);
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}
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int16_t SSP_SerialRead(void) {
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if(PIOS_COM_ReceiveBufferUsed(PIOS_COM_TELEM_RF)>0)
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{
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return PIOS_COM_ReceiveBuffer(PIOS_COM_TELEM_RF);
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}
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else
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return -1;
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}
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void SSP_SerialWrite(uint8_t value) {
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PIOS_COM_SendChar(PIOS_COM_TELEM_RF,value);
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}
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uint32_t SSP_GetTime(void) {
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return sspTimeSource();
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}
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