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   1 /**********************************************************************\r
   2 * $Id$          lpc18xx_rgu.c           2011-06-02\r
   3 *//**\r
   4 * @file         lpc18xx_rgu.c\r
   5 * @brief        Contains all functions support for RGU firmware library on LPC18xx\r
   6 * @version      1.0\r
   7 * @date         02. June. 2011\r
   8 * @author       NXP MCU SW Application Team\r
   9 *\r
  10 * Copyright(C) 2011, NXP Semiconductor\r
  11 * All rights reserved.\r
  12 *\r
  13 ***********************************************************************\r
  14 * Software that is described herein is for illustrative purposes only\r
  15 * which provides customers with programming information regarding the\r
  16 * products. This software is supplied "AS IS" without any warranties.\r
  17 * NXP Semiconductors assumes no responsibility or liability for the\r
  18 * use of the software, conveys no license or title under any patent,\r
  19 * copyright, or mask work right to the product. NXP Semiconductors\r
  20 * reserves the right to make changes in the software without\r
  21 * notification. NXP Semiconductors also make no representation or\r
  22 * warranty that such application will be suitable for the specified\r
  23 * use without further testing or modification.\r
  24 **********************************************************************/\r
  25 \r
  26 /* Peripheral group ----------------------------------------------------------- */\r
  27 /** @addtogroup RGU\r
  28  * @{\r
  29  */\r
  30 \r
  31 /* Includes ------------------------------------------------------------------- */\r
  32 #include "lpc18xx_rgu.h"\r
  33 #include "lpc18xx_cgu.h"\r
  34 \r
  35 /* If this source file built with example, the LPC18xx FW library configuration\r
  36  * file in each example directory ("lpc18xx_libcfg.h") must be included,\r
  37  * otherwise the default FW library configuration file must be included instead\r
  38  */\r
  39 #ifdef __BUILD_WITH_EXAMPLE__\r
  40 #include "lpc18xx_libcfg.h"\r
  41 #else\r
  42 #include "lpc18xx_libcfg_default.h"\r
  43 #endif /* __BUILD_WITH_EXAMPLE__ */\r
  44 \r
  45 \r
  46 #ifdef _RGU\r
  47 /* Public Functions ----------------------------------------------------------- */\r
  48 /** @addtogroup RGU_Public_Functions\r
  49  * @{\r
  50  */\r
  51 \r
  52 /*********************************************************************//**\r
  53  * @brief               Soft Reset a Signal\r
  54  * @param[in]   ResetSignal indicates which signal will be reset, should be:\r
  55  *                                      - RGU_SIG_CORE          :Core\r
  56  *                                      - RGU_SIG_PERIPH        :Peripheral\r
  57  *                                      - RGU_SIG_MASTER        :Master\r
  58  *                                      - RGU_SIG_WWDT          :WWDT\r
  59  *                                      - RGU_SIG_CREG          :Configuration register block\r
  60  *                                      - RGU_SIG_BUS           :Buses\r
  61  *                                      - RGU_SIG_SCU           :System control unit\r
  62  *                                      - RGU_SIG_PINMUX        :Pin mux\r
  63  *                                      - RGU_SIG_M3            :Cortex-M3 system\r
  64  *                                      - RGU_SIG_LCD           :LCD controller\r
  65  *                                      - RGU_SIG_USB0          :USB0\r
  66  *                                      - RGU_SIG_USB1          :USB1\r
  67  *                                      - RGU_SIG_DMA           :DMA\r
  68  *                                      - RGU_SIG_SDIO          :SDIO\r
  69  *                                      - RGU_SIG_EMC           :External memory controller\r
  70  *                                      - RGU_SIG_ETHERNET      :Ethernet\r
  71  *                                      - RGU_SIG_AES           :AES\r
  72  *                                      - RGU_SIG_GPIO          :GPIO\r
  73  *                                      - RGU_SIG_TIMER0        :Timer 0\r
  74  *                                      - RGU_SIG_TIMER1        :Timer 1\r
  75  *                                      - RGU_SIG_TIMER2        :Timer 2\r
  76  *                                      - RGU_SIG_TIMER3        :Timer 3\r
  77  *                                      - RGU_SIG_RITIMER       :Repetitive Interrupt Timer\r
  78  *                                      - RGU_SIG_SCT           :State Configurable Timer\r
  79  *                                      - RGU_SIG_MOTOCONPWM:Motor Control PWM\r
  80  *                                      - RGU_SIG_QEI           :QEI\r
  81  *                                      - RGU_SIG_ADC0          :ADC0\r
  82  *                                      - RGU_SIG_ADC1          :ADC1\r
  83  *                                      - RGU_SIG_DAC           :DAC\r
  84  *                                      - RGU_SIG_UART0         :UART0\r
  85  *                                      - RGU_SIG_UART1         :UART1\r
  86  *                                      - RGU_SIG_UART2         :UART2\r
  87  *                                      - RGU_SIG_UART3         :UART3\r
  88  *                                      - RGU_SIG_I2C0          :I2C0\r
  89  *                                      - RGU_SIG_I2C1          :I2C1\r
  90  *                                      - RGU_SIG_SSP0          :SSP0\r
  91  *                                      - RGU_SIG_SSP1          :SSP1\r
  92  *                                      - RGU_SIG_I2S           :I2S\r
  93  *                                      - RGU_SIG_SPIFI         :SPIFI\r
  94  *                                      - RGU_SIG_CAN           :CAN\r
  95  * @return              None\r
  96  **********************************************************************/\r
  97 void RGU_SoftReset(RGU_SIG ResetSignal)\r
  98 {\r
  99         if(ResetSignal < 32){\r
 100                 LPC_RGU->RESET_CTRL0 = 1 << ResetSignal;\r
 101                 LPC_RGU->RESET_CTRL0 = 0;\r
 102         }else{\r
 103                 LPC_RGU->RESET_CTRL1 = 1 << (ResetSignal - 32);\r
 104                 LPC_RGU->RESET_CTRL1 = 0;\r
 105         }\r
 106 }\r
 107 \r
 108 /*********************************************************************//**\r
 109  * @brief               Get source cause of a signal\r
 110  * @param[in]   ResetSignal reset signal, should be:\r
 111  *                                      - RGU_SIG_CORE          :Core\r
 112  *                                      - RGU_SIG_PERIPH        :Peripheral\r
 113  *                                      - RGU_SIG_MASTER        :Master\r
 114  *                                      - RGU_SIG_WWDT          :WWDT\r
 115  *                                      - RGU_SIG_CREG          :Configuration register block\r
 116  *                                      - RGU_SIG_BUS           :Buses\r
 117  *                                      - RGU_SIG_SCU           :System control unit\r
 118  *                                      - RGU_SIG_PINMUX        :Pin mux\r
 119  *                                      - RGU_SIG_M3            :Cortex-M3 system\r
 120  *                                      - RGU_SIG_LCD           :LCD controller\r
 121  *                                      - RGU_SIG_USB0          :USB0\r
 122  *                                      - RGU_SIG_USB1          :USB1\r
 123  *                                      - RGU_SIG_DMA           :DMA\r
 124  *                                      - RGU_SIG_SDIO          :SDIO\r
 125  *                                      - RGU_SIG_EMC           :External memory controller\r
 126  *                                      - RGU_SIG_ETHERNET      :Ethernet\r
 127  *                                      - RGU_SIG_AES           :AES\r
 128  *                                      - RGU_SIG_GPIO          :GPIO\r
 129  *                                      - RGU_SIG_TIMER0        :Timer 0\r
 130  *                                      - RGU_SIG_TIMER1        :Timer 1\r
 131  *                                      - RGU_SIG_TIMER2        :Timer 2\r
 132  *                                      - RGU_SIG_TIMER3        :Timer 3\r
 133  *                                      - RGU_SIG_RITIMER       :Repetitive Interrupt Timer\r
 134  *                                      - RGU_SIG_SCT           :State Configurable Timer\r
 135  *                                      - RGU_SIG_MOTOCONPWM:Motor Control PWM\r
 136  *                                      - RGU_SIG_QEI           :QEI\r
 137  *                                      - RGU_SIG_ADC0          :ADC0\r
 138  *                                      - RGU_SIG_ADC1          :ADC1\r
 139  *                                      - RGU_SIG_DAC           :DAC\r
 140  *                                      - RGU_SIG_UART0         :UART0\r
 141  *                                      - RGU_SIG_UART1         :UART1\r
 142  *                                      - RGU_SIG_UART2         :UART2\r
 143  *                                      - RGU_SIG_UART3         :UART3\r
 144  *                                      - RGU_SIG_I2C0          :I2C0\r
 145  *                                      - RGU_SIG_I2C1          :I2C1\r
 146  *                                      - RGU_SIG_SSP0          :SSP0\r
 147  *                                      - RGU_SIG_SSP1          :SSP1\r
 148  *                                      - RGU_SIG_I2S           :I2S\r
 149  *                                      - RGU_SIG_SPIFI         :SPIFI\r
 150  *                                      - RGU_SIG_CAN           :CAN\r
 151  * @return              Source cause of reset, could be:\r
 152  *                                      - RGU_SRC_NONE          :No source\r
 153  *                                      - RGU_SRC_SOFT          :Software reset source\r
 154  *                                      - RGU_SRC_EXT           :External reset source\r
 155  *                                      - RGU_SRC_CORE          :Core reset source\r
 156  *                                      - RGU_SRC_PERIPH        :Peripheral reset source\r
 157  *                                      - RGU_SRC_MASTER        :Master reset source\r
 158  *                                      - RGU_SRC_BOD           :BOD reset source\r
 159  *                                      - RGU_SRC_WWDT          :WWDT reset source\r
 160  **********************************************************************/\r
 161 RGU_SRC RGU_GetSource(RGU_SIG ResetSignal)\r
 162 {\r
 163         uint32_t i, temp, registercache;\r
 164         if(ResetSignal < 16)\r
 165                 temp = 3 & (LPC_RGU->RESET_STATUS0 >> ResetSignal);\r
 166         else if(ResetSignal < 32)\r
 167                 temp = 3 & (LPC_RGU->RESET_STATUS1 >> (ResetSignal - 16));\r
 168         else if(ResetSignal < 48)\r
 169                 temp = 3 & (LPC_RGU->RESET_STATUS2 >> (ResetSignal - 32));\r
 170         else\r
 171                 temp = 3 & (LPC_RGU->RESET_STATUS3 >> (ResetSignal - 48));\r
 172 \r
 173         if(temp == 0) return RGU_SRC_NONE;\r
 174         else if(temp == 3) return RGU_SRC_SOFT;\r
 175         else if(temp == 1){\r
 176                 registercache = (((uint32_t*)&LPC_RGU->RESET_EXT_STAT0)[ResetSignal]);\r
 177                 for(i = 0; i < 6; i++){\r
 178                         if(registercache & (1<<i)){\r
 179                                 return (RGU_SRC)(RGU_SRC_EXT + i);\r
 180                         }\r
 181                 }\r
 182         }\r
 183         return RGU_SRC_NONE;\r
 184 }\r
 185 \r
 186 /*********************************************************************//**\r
 187  * @brief               Get Current Status of Signal\r
 188  * @param[in]   ResetSignal Reset Signal, should be:\r
 189  *                                      - RGU_SIG_CORE          :Core\r
 190  *                                      - RGU_SIG_PERIPH        :Peripheral\r
 191  *                                      - RGU_SIG_MASTER        :Master\r
 192  *                                      - RGU_SIG_WWDT          :WWDT\r
 193  *                                      - RGU_SIG_CREG          :Configuration register block\r
 194  *                                      - RGU_SIG_BUS           :Buses\r
 195  *                                      - RGU_SIG_SCU           :System control unit\r
 196  *                                      - RGU_SIG_PINMUX        :Pin mux\r
 197  *                                      - RGU_SIG_M3            :Cortex-M3 system\r
 198  *                                      - RGU_SIG_LCD           :LCD controller\r
 199  *                                      - RGU_SIG_USB0          :USB0\r
 200  *                                      - RGU_SIG_USB1          :USB1\r
 201  *                                      - RGU_SIG_DMA           :DMA\r
 202  *                                      - RGU_SIG_SDIO          :SDIO\r
 203  *                                      - RGU_SIG_EMC           :External memory controller\r
 204  *                                      - RGU_SIG_ETHERNET      :Ethernet\r
 205  *                                      - RGU_SIG_AES           :AES\r
 206  *                                      - RGU_SIG_GPIO          :GPIO\r
 207  *                                      - RGU_SIG_TIMER0        :Timer 0\r
 208  *                                      - RGU_SIG_TIMER1        :Timer 1\r
 209  *                                      - RGU_SIG_TIMER2        :Timer 2\r
 210  *                                      - RGU_SIG_TIMER3        :Timer 3\r
 211  *                                      - RGU_SIG_RITIMER       :Repetitive Interrupt Timer\r
 212  *                                      - RGU_SIG_SCT           :State Configurable Timer\r
 213  *                                      - RGU_SIG_MOTOCONPWM:Motor Control PWM\r
 214  *                                      - RGU_SIG_QEI           :QEI\r
 215  *                                      - RGU_SIG_ADC0          :ADC0\r
 216  *                                      - RGU_SIG_ADC1          :ADC1\r
 217  *                                      - RGU_SIG_DAC           :DAC\r
 218  *                                      - RGU_SIG_UART0         :UART0\r
 219  *                                      - RGU_SIG_UART1         :UART1\r
 220  *                                      - RGU_SIG_UART2         :UART2\r
 221  *                                      - RGU_SIG_UART3         :UART3\r
 222  *                                      - RGU_SIG_I2C0          :I2C0\r
 223  *                                      - RGU_SIG_I2C1          :I2C1\r
 224  *                                      - RGU_SIG_SSP0          :SSP0\r
 225  *                                      - RGU_SIG_SSP1          :SSP1\r
 226  *                                      - RGU_SIG_I2S           :I2S\r
 227  *                                      - RGU_SIG_SPIFI         :SPIFI\r
 228  *                                      - RGU_SIG_CAN           :CAN\r
 229  * @return              Signal status, could be:\r
 230  *                                      - TRUE  :reset is active\r
 231  *                                      - FALSE :reset is inactive\r
 232  **********************************************************************/\r
 233 Bool RGU_GetSignalStatus(RGU_SIG ResetSignal)\r
 234 {\r
 235         if(ResetSignal < 32)\r
 236                 return (Bool)!(LPC_RGU->RESET_ACTIVE_STATUS0 | (1 << ResetSignal));\r
 237         else\r
 238                 return (Bool)!(LPC_RGU->RESET_ACTIVE_STATUS1 | (1 << (ResetSignal - 32)));\r
 239 }\r
 240 \r
 241 \r
 242 /**\r
 243  * @}\r
 244  */\r
 245 \r
 246 #endif /* _RGU */\r
 247 \r
 248 /**\r
 249  * @}\r
 250  */\r
 251 \r
 252 /* --------------------------------- End Of File ------------------------------ */\r
 253 \r