sysinit.c

   1 /**************************************************************************/
   2 /*!
   3     @file     sysinit.c
   4     @author   K. Townsend (microBuilder.eu)
   5     @date     22 March 2010
   6     @version  0.10
   7
   8     @section LICENSE
   9
  10     Software License Agreement (BSD License)
  11
  12     Copyright (c) 2010, microBuilder SARL
  13     All rights reserved.
  14
  15     Redistribution and use in source and binary forms, with or without
  16     modification, are permitted provided that the following conditions are met:
  17     1. Redistributions of source code must retain the above copyright
  18     notice, this list of conditions and the following disclaimer.
  19     2. Redistributions in binary form must reproduce the above copyright
  20     notice, this list of conditions and the following disclaimer in the
  21     documentation and/or other materials provided with the distribution.
  22     3. Neither the name of the copyright holders nor the
  23     names of its contributors may be used to endorse or promote products
  24     derived from this software without specific prior written permission.
  25
  26     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
  27     EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  28     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  29     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
  30     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  31     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  32     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  33     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  34     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  35     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36 */
  37 /**************************************************************************/
  38
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42
  43 #include "sysinit.h"
  44
  45 #include "core/cpu/cpu.h"
  46 #include "core/pmu/pmu.h"
  47 #include "core/adc/adc.h"
  48
  49 #ifdef CFG_PRINTF_UART
  50   #include "core/uart/uart.h"
  51 #endif
  52
  53 #ifdef CFG_INTERFACE
  54   #include "core/cmd/cmd.h"
  55 #endif
  56
  57 #ifdef CFG_CHIBI
  58   #include "drivers/chibi/chb.h"
  59 #endif
  60
  61 #ifdef CFG_USBHID
  62   #include "core/usbhid-rom/usbhid.h"
  63 #endif
  64
  65 #ifdef CFG_USBCDC
  66   volatile unsigned int lastTick;
  67   #include "core/usbcdc/usb.h"
  68   #include "core/usbcdc/usbcore.h"
  69   #include "core/usbcdc/usbhw.h"
  70   #include "core/usbcdc/cdcuser.h"
  71   #include "core/usbcdc/cdc_buf.h"
  72 #endif
  73
  74 #ifdef CFG_ST7565
  75   #include "drivers/lcd/bitmap/st7565/st7565.h"
  76   #include "drivers/lcd/smallfonts.h"
  77 #endif
  78
  79 #ifdef CFG_SSD1306
  80   #include "drivers/lcd/bitmap/ssd1306/ssd1306.h"
  81   #include "drivers/lcd/smallfonts.h"
  82 #endif
  83
  84 #ifdef CFG_TFTLCD
  85   #include "drivers/lcd/tft/lcd.h"
  86   #include "drivers/lcd/tft/touchscreen.h"
  87   #include "drivers/lcd/tft/drawing.h"
  88 #endif
  89
  90 #ifdef CFG_I2CEEPROM
  91   #include "drivers/eeprom/mcp24aa/mcp24aa.h"
  92   #include "drivers/eeprom/eeprom.h"
  93 #endif
  94
  95 #ifdef CFG_PWM
  96   #include "core/pwm/pwm.h"
  97 #endif
  98
  99 #ifdef CFG_SDCARD
 100   #include "core/ssp/ssp.h"
 101   #include "drivers/fatfs/diskio.h"
 102   #include "drivers/fatfs/ff.h"
 103
 104   DWORD get_fattime ()
 105   {
 106     // ToDo!
 107     return 0;
 108   }
 109 #endif
 110
 111 /**************************************************************************/
 112 /*!
 113     Configures the core system clock and sets up any mandatory
 114     peripherals like the systick timer, UART for printf, etc.
 115
 116     This function should set the HW to the default state you wish to be
 117     in coming out of reset/startup, such as disabling or enabling LEDs,
 118     setting specific pin states, etc.
 119 */
 120 /**************************************************************************/
 121 void systemInit()
 122 {
 123   cpuInit();                                // Configure the CPU
 124   systickInit(CFG_SYSTICK_DELAY_IN_MS);     // Start systick timer
 125   gpioInit();                               // Enable GPIO
 126   pmuInit();                                // Configure power management
 127   adcInit();                                // Config adc pins to save power
 128
 129   // Set LED pin as output and turn LED off
 130   gpioSetDir(CFG_LED_PORT, CFG_LED_PIN, 1);
 131   gpioSetValue(CFG_LED_PORT, CFG_LED_PIN, CFG_LED_OFF);
 132
 133   // Config alt reset pin if requested (really only relevant to LPC1343 LCD Board)
 134   #ifdef CFG_ALTRESET
 135     gpioSetDir (CFG_ALTRESET_PORT, CFG_ALTRESET_PIN, gpioDirection_Input);
 136     gpioSetInterrupt (CFG_ALTRESET_PORT, CFG_ALTRESET_PIN, gpioInterruptSense_Level, gpioInterruptEdge_Single, gpioInterruptEvent_ActiveHigh);
 137     gpioIntEnable (CFG_ALTRESET_PORT, CFG_ALTRESET_PIN);
 138   #endif
 139
 140   // Initialise EEPROM
 141   #ifdef CFG_I2CEEPROM
 142     mcp24aaInit();
 143   #endif
 144
 145   // Initialise UART with the default baud rate
 146   #ifdef CFG_PRINTF_UART
 147     uint32_t uart = eepromReadU32(CFG_EEPROM_UART_SPEED);
 148     if ((uart == 0xFFFFFFFF) || (uart > 115200))
 149     {
 150       uartInit(CFG_UART_BAUDRATE);  // Use default baud rate
 151     }
 152     else
 153     {
 154       uartInit(uart);               // Use baud rate from EEPROM
 155     }
 156   #endif
 157
 158   // Initialise PWM (requires 16-bit Timer 1 and P1.9)
 159   #ifdef CFG_PWM
 160     pwmInit();
 161   #endif
 162
 163   // Initialise USB HID
 164   #ifdef CFG_USBHID
 165     usbHIDInit();
 166   #endif
 167
 168   // Initialise USB CDC
 169   #ifdef CFG_USBCDC
 170     lastTick = systickGetTicks();   // Used to control output/printf timing
 171     CDC_Init();                     // Initialise VCOM
 172     USB_Init();                     // USB Initialization
 173     USB_Connect(TRUE);              // USB Connect
 174     // Wait until USB is configured or timeout occurs
 175     uint32_t usbTimeout = 0;
 176     while ( usbTimeout < CFG_USBCDC_INITTIMEOUT / 10 )
 177     {
 178       if (USB_Configuration) break;
 179       systickDelay(10);             // Wait 10ms
 180       usbTimeout++;
 181     }
 182   #endif
 183
 184   // Printf can now be used with UART or USBCDC
 185
 186   // Initialise the ST7565 128x64 pixel display
 187   #ifdef CFG_ST7565
 188     st7565Init();
 189     st7565ClearScreen();    // Clear the screen
 190     st7565Backlight(1);     // Enable the backlight
 191   #endif
 192
 193   // Initialise the SSD1306 OLED display
 194   #ifdef CFG_SSD1306
 195     ssd1306Init(SSD1306_SWITCHCAPVCC);
 196     ssd1306ClearScreen();   // Clear the screen
 197   #endif
 198
 199   // Initialise TFT LCD Display
 200   #ifdef CFG_TFTLCD
 201     lcdInit();
 202   #endif
 203
 204   // Initialise Chibi
 205   // Warning: CFG_CHIBI must be disabled if no antenna is connected,
 206   // otherwise the SW will halt during initialisation
 207   #ifdef CFG_CHIBI
 208     // Write addresses to EEPROM for the first time if necessary
 209     // uint16_t addr_short = 0x0025;
 210     // uint64_t addr_ieee =  0x0000000000000025;
 211     // mcp24aaWriteBuffer(CFG_EEPROM_CHIBI_SHORTADDR, (uint8_t *)&addr_short, 2);
 212     // mcp24aaWriteBuffer(CFG_EEPROM_CHIBI_IEEEADDR, (uint8_t *)&addr_ieee, 8);
 213     chb_init();
 214     // chb_pcb_t *pcb = chb_get_pcb();
 215     // printf("%-40s : 0x%04X%s", "Chibi Initialised", pcb->src_addr, CFG_PRINTF_NEWLINE);
 216   #endif
 217
 218   // Start the command line interface
 219   #ifdef CFG_INTERFACE
 220     cmdInit();
 221   #endif
 222 }
 223
 224 /**************************************************************************/
 225 /*!
 226     @brief Sends a single byte to a pre-determined peripheral (UART, etc.).
 227
 228     @param[in]  byte
 229                 Byte value to send
 230 */
 231 /**************************************************************************/
 232 void __putchar(const char c)
 233 {
 234   #ifdef CFG_PRINTF_UART
 235     // Send output to UART
 236     uartSendByte(c);
 237   #endif
 238 }
 239
 240 /**************************************************************************/
 241 /*!
 242     @brief Sends a string to a pre-determined end point (UART, etc.).
 243
 244     @param[in]  str
 245                 Text to send
 246
 247     @note This function is only called when using the GCC-compiler
 248           in Codelite or running the Makefile manually.  This function
 249           will not be called when using the C library in Crossworks for
 250           ARM.
 251 */
 252 /**************************************************************************/
 253 int puts(const char * str)
 254 {
 255   // There must be at least 1ms between USB frames (of up to 64 bytes)
 256   // This buffers all data and writes it out from the buffer one frame
 257   // and one millisecond at a time
 258   #ifdef CFG_PRINTF_USBCDC
 259     if (USB_Configuration)
 260     {
 261       while(*str)
 262         cdcBufferWrite(*str++);
 263       // Check if we can flush the buffer now or if we need to wait
 264       unsigned int currentTick = systickGetTicks();
 265       if (currentTick != lastTick)
 266       {
 267         uint8_t frame[64];
 268         uint32_t bytesRead = 0;
 269         while (cdcBufferDataPending())
 270         {
 271           // Read up to 64 bytes as long as possible
 272           bytesRead = cdcBufferReadLen(frame, 64);
 273           USB_WriteEP (CDC_DEP_IN, frame, bytesRead);
 274           systickDelay(1);
 275         }
 276         lastTick = currentTick;
 277       }
 278     }
 279   #else
 280     // Handle output character by character in __putchar
 281     while(*str) __putchar(*str++);
 282   #endif
 283
 284   return 0;
 285 }