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
  48 #ifdef CFG_PRINTF_UART
  49   #include "core/uart/uart.h"
  50 #endif
  51
  52 #ifdef CFG_INTERFACE
  53   #include "core/cmd/cmd.h"
  54 #endif
  55
  56 #ifdef CFG_CHIBI
  57   #include "drivers/chibi/chb.h"
  58 #endif
  59
  60 #ifdef CFG_USBHID
  61   #include "core/usbhid-rom/usbhid.h"
  62 #endif
  63
  64 #ifdef CFG_USBCDC
  65   volatile unsigned int lastTick;
  66   #include "core/usbcdc/usb.h"
  67   #include "core/usbcdc/usbcore.h"
  68   #include "core/usbcdc/usbhw.h"
  69   #include "core/usbcdc/cdcuser.h"
  70   #include "core/usbcdc/cdc_buf.h"
  71 #endif
  72
  73 #ifdef CFG_ST7565
  74   #include "drivers/lcd/bitmap/st7565/st7565.h"
  75   #include "drivers/lcd/smallfonts.h"
  76 #endif
  77
  78 #ifdef CFG_SSD1306
  79   #include "drivers/lcd/bitmap/ssd1306/ssd1306.h"
  80   #include "drivers/lcd/smallfonts.h"
  81 #endif
  82
  83 #ifdef CFG_TFTLCD
  84   #include "drivers/lcd/tft/lcd.h"
  85   #include "drivers/lcd/tft/touchscreen.h"
  86   #include "drivers/lcd/tft/drawing.h"
  87 #endif
  88
  89 #ifdef CFG_I2CEEPROM
  90   #include "drivers/eeprom/mcp24aa/mcp24aa.h"
  91   #include "drivers/eeprom/eeprom.h"
  92 #endif
  93
  94 #ifdef CFG_PWM
  95   #include "core/pwm/pwm.h"
  96 #endif
  97
  98 #ifdef CFG_SDCARD
  99   #include "core/ssp/ssp.h"
 100   #include "drivers/fatfs/diskio.h"
 101   #include "drivers/fatfs/ff.h"
 102
 103   DWORD get_fattime ()
 104   {
 105     // ToDo!
 106     return 0;
 107   }
 108 #endif
 109
 110 /**************************************************************************/
 111 /*!
 112     Configures the core system clock and sets up any mandatory
 113     peripherals like the systick timer, UART for printf, etc.
 114
 115     This function should set the HW to the default state you wish to be
 116     in coming out of reset/startup, such as disabling or enabling LEDs,
 117     setting specific pin states, etc.
 118 */
 119 /**************************************************************************/
 120 void systemInit()
 121 {
 122   cpuInit();                                // Configure the CPU
 123   systickInit(CFG_SYSTICK_DELAY_IN_MS);     // Start systick timer
 124   gpioInit();                               // Enable GPIO
 125   pmuInit();                                // Configure power management
 126
 127   // Set LED pin as output and turn LED off
 128   gpioSetDir(CFG_LED_PORT, CFG_LED_PIN, 1);
 129   gpioSetValue(CFG_LED_PORT, CFG_LED_PIN, CFG_LED_OFF);
 130
 131   // Config alt reset pin if requested (really only relevant to LPC1343 LCD Board)
 132   #ifdef CFG_ALTRESET
 133     gpioSetDir (CFG_ALTRESET_PORT, CFG_ALTRESET_PIN, gpioDirection_Input);
 134     gpioSetInterrupt (CFG_ALTRESET_PORT, CFG_ALTRESET_PIN, gpioInterruptSense_Level, gpioInterruptEdge_Single, gpioInterruptEvent_ActiveHigh);
 135     gpioIntEnable (CFG_ALTRESET_PORT, CFG_ALTRESET_PIN);
 136   #endif
 137
 138   // Initialise EEPROM
 139   #ifdef CFG_I2CEEPROM
 140     mcp24aaInit();
 141   #endif
 142
 143   // Initialise UART with the default baud rate
 144   #ifdef CFG_PRINTF_UART
 145     #ifdef CFG_I2CEEPROM
 146       uint32_t uart = eepromReadU32(CFG_EEPROM_UART_SPEED);
 147       if ((uart == 0xFFFFFFFF) || (uart > 115200))
 148       {
 149         uartInit(CFG_UART_BAUDRATE);  // Use default baud rate
 150       }
 151       else
 152       {
 153         uartInit(uart);               // Use baud rate from EEPROM
 154       }
 155     #else
 156       uartInit(CFG_UART_BAUDRATE);
 157     #endif
 158   #endif
 159
 160   // Initialise PWM (requires 16-bit Timer 1 and P1.9)
 161   #ifdef CFG_PWM
 162     pwmInit();
 163   #endif
 164
 165   // Initialise USB HID
 166   #ifdef CFG_USBHID
 167     usbHIDInit();
 168   #endif
 169
 170   // Initialise USB CDC
 171   #ifdef CFG_USBCDC
 172     lastTick = systickGetTicks();   // Used to control output/printf timing
 173     CDC_Init();                     // Initialise VCOM
 174     USB_Init();                     // USB Initialization
 175     USB_Connect(TRUE);              // USB Connect
 176     // Wait until USB is configured or timeout occurs
 177     uint32_t usbTimeout = 0;
 178     while ( usbTimeout < CFG_USBCDC_INITTIMEOUT / 10 )
 179     {
 180       if (USB_Configuration) break;
 181       systickDelay(10);             // Wait 10ms
 182       usbTimeout++;
 183     }
 184   #endif
 185
 186   // Printf can now be used with UART or USBCDC
 187
 188   // Initialise the ST7565 128x64 pixel display
 189   #ifdef CFG_ST7565
 190     st7565Init();
 191     st7565ClearScreen();    // Clear the screen
 192     st7565Backlight(1);     // Enable the backlight
 193   #endif
 194
 195   // Initialise the SSD1306 OLED display
 196   #ifdef CFG_SSD1306
 197     ssd1306Init(SSD1306_INTERNALVCC);
 198     ssd1306ClearScreen();   // Clear the screen
 199   #endif
 200
 201   // Initialise TFT LCD Display
 202   #ifdef CFG_TFTLCD
 203     lcdInit();
 204     // You may need to call the tsCalibrate() function to calibrate
 205     // the touch screen is this has never been done.  This only needs
 206     // to be done once and the values are saved to EEPROM.  This
 207     // function can also be called from tsInit if it's more
 208     // convenient
 209     /*
 210     #ifdef CFG_I2CEEPROM
 211     if (eepromReadU8(CFG_EEPROM_TOUCHSCREEN_CALIBRATED) != 1)
 212     {
 213       tsCalibrate();
 214     }
 215     #endif
 216     */
 217   #endif
 218
 219   // Initialise Chibi
 220   // Warning: CFG_CHIBI must be disabled if no antenna is connected,
 221   // otherwise the SW will halt during initialisation
 222   #ifdef CFG_CHIBI
 223     // Write addresses to EEPROM for the first time if necessary
 224     // uint16_t addr_short = 0x0025;
 225     // uint64_t addr_ieee =  0x0000000000000025;
 226     // mcp24aaWriteBuffer(CFG_EEPROM_CHIBI_SHORTADDR, (uint8_t *)&addr_short, 2);
 227     // mcp24aaWriteBuffer(CFG_EEPROM_CHIBI_IEEEADDR, (uint8_t *)&addr_ieee, 8);
 228     chb_init();
 229     // chb_pcb_t *pcb = chb_get_pcb();
 230     // printf("%-40s : 0x%04X%s", "Chibi Initialised", pcb->src_addr, CFG_PRINTF_NEWLINE);
 231   #endif
 232
 233   // Start the command line interface
 234   #ifdef CFG_INTERFACE
 235     cmdInit();
 236   #endif
 237 }
 238
 239 /**************************************************************************/
 240 /*!
 241     @brief Sends a single byte to a pre-determined peripheral (UART, etc.).
 242
 243     @param[in]  byte
 244                 Byte value to send
 245 */
 246 /**************************************************************************/
 247 void __putchar(const char c)
 248 {
 249   #ifdef CFG_PRINTF_UART
 250     // Send output to UART
 251     uartSendByte(c);
 252   #endif
 253 }
 254
 255 /**************************************************************************/
 256 /*!
 257     @brief Sends a string to a pre-determined end point (UART, etc.).
 258
 259     @param[in]  str
 260                 Text to send
 261
 262     @note This function is only called when using the GCC-compiler
 263           in Codelite or running the Makefile manually.  This function
 264           will not be called when using the C library in Crossworks for
 265           ARM.
 266 */
 267 /**************************************************************************/
 268 int puts(const char * str)
 269 {
 270   // There must be at least 1ms between USB frames (of up to 64 bytes)
 271   // This buffers all data and writes it out from the buffer one frame
 272   // and one millisecond at a time
 273   #ifdef CFG_PRINTF_USBCDC
 274     if (USB_Configuration)
 275     {
 276       while(*str)
 277         cdcBufferWrite(*str++);
 278       // Check if we can flush the buffer now or if we need to wait
 279       unsigned int currentTick = systickGetTicks();
 280       if (currentTick != lastTick)
 281       {
 282         uint8_t frame[64];
 283         uint32_t bytesRead = 0;
 284         while (cdcBufferDataPending())
 285         {
 286           // Read up to 64 bytes as long as possible
 287           bytesRead = cdcBufferReadLen(frame, 64);
 288           USB_WriteEP (CDC_DEP_IN, frame, bytesRead);
 289           systickDelay(1);
 290         }
 291         lastTick = currentTick;
 292       }
 293     }
 294   #else
 295     // Handle output character by character in __putchar
 296     while(*str) __putchar(*str++);
 297   #endif
 298
 299   return 0;
 300 }