Fork of Smoothie to port to mbed non-LPC targets.
Fork of Smoothie by
Diff: libs/LPC17xx/LPC17xxLib/src/lpc17xx_clkpwr.c
- Revision:
- 3:f151d08d335c
- Parent:
- 2:1df0b61d3b5a
--- a/libs/LPC17xx/LPC17xxLib/src/lpc17xx_clkpwr.c Fri Feb 28 18:52:52 2014 -0800 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,347 +0,0 @@ -#ifdef __LPC17XX__ - -/********************************************************************** -* $Id$ lpc17xx_clkpwr.c 2010-06-18 -*//** -* @file lpc17xx_clkpwr.c -* @brief Contains all functions support for Clock and Power Control -* firmware library on LPC17xx -* @version 3.0 -* @date 18. June. 2010 -* @author NXP MCU SW Application Team -* -* Copyright(C) 2010, NXP Semiconductor -* All rights reserved. -* -*********************************************************************** -* Software that is described herein is for illustrative purposes only -* which provides customers with programming information regarding the -* products. This software is supplied "AS IS" without any warranties. -* NXP Semiconductors assumes no responsibility or liability for the -* use of the software, conveys no license or title under any patent, -* copyright, or mask work right to the product. NXP Semiconductors -* reserves the right to make changes in the software without -* notification. NXP Semiconductors also make no representation or -* warranty that such application will be suitable for the specified -* use without further testing or modification. -**********************************************************************/ - -/* Peripheral group ----------------------------------------------------------- */ -/** @addtogroup CLKPWR - * @{ - */ - -/* Includes ------------------------------------------------------------------- */ -#include "lpc17xx_clkpwr.h" - - -/* Public Functions ----------------------------------------------------------- */ -/** @addtogroup CLKPWR_Public_Functions - * @{ - */ - -/*********************************************************************//** - * @brief Set value of each Peripheral Clock Selection - * @param[in] ClkType Peripheral Clock Selection of each type, - * should be one of the following: - * - CLKPWR_PCLKSEL_WDT : WDT - - CLKPWR_PCLKSEL_TIMER0 : Timer 0 - - CLKPWR_PCLKSEL_TIMER1 : Timer 1 - - CLKPWR_PCLKSEL_UART0 : UART 0 - - CLKPWR_PCLKSEL_UART1 : UART 1 - - CLKPWR_PCLKSEL_PWM1 : PWM 1 - - CLKPWR_PCLKSEL_I2C0 : I2C 0 - - CLKPWR_PCLKSEL_SPI : SPI - - CLKPWR_PCLKSEL_SSP1 : SSP 1 - - CLKPWR_PCLKSEL_DAC : DAC - - CLKPWR_PCLKSEL_ADC : ADC - - CLKPWR_PCLKSEL_CAN1 : CAN 1 - - CLKPWR_PCLKSEL_CAN2 : CAN 2 - - CLKPWR_PCLKSEL_ACF : ACF - - CLKPWR_PCLKSEL_QEI : QEI - - CLKPWR_PCLKSEL_PCB : PCB - - CLKPWR_PCLKSEL_I2C1 : I2C 1 - - CLKPWR_PCLKSEL_SSP0 : SSP 0 - - CLKPWR_PCLKSEL_TIMER2 : Timer 2 - - CLKPWR_PCLKSEL_TIMER3 : Timer 3 - - CLKPWR_PCLKSEL_UART2 : UART 2 - - CLKPWR_PCLKSEL_UART3 : UART 3 - - CLKPWR_PCLKSEL_I2C2 : I2C 2 - - CLKPWR_PCLKSEL_I2S : I2S - - CLKPWR_PCLKSEL_RIT : RIT - - CLKPWR_PCLKSEL_SYSCON : SYSCON - - CLKPWR_PCLKSEL_MC : MC - - * @param[in] DivVal Value of divider, should be: - * - CLKPWR_PCLKSEL_CCLK_DIV_4 : PCLK_peripheral = CCLK/4 - * - CLKPWR_PCLKSEL_CCLK_DIV_1 : PCLK_peripheral = CCLK/1 - * - CLKPWR_PCLKSEL_CCLK_DIV_2 : PCLK_peripheral = CCLK/2 - * - * @return none - **********************************************************************/ -void CLKPWR_SetPCLKDiv (uint32_t ClkType, uint32_t DivVal) -{ - uint32_t bitpos; - - bitpos = (ClkType < 32) ? (ClkType) : (ClkType - 32); - - /* PCLKSEL0 selected */ - if (ClkType < 32) - { - /* Clear two bit at bit position */ - LPC_SC->PCLKSEL0 &= (~(CLKPWR_PCLKSEL_BITMASK(bitpos))); - - /* Set two selected bit */ - LPC_SC->PCLKSEL0 |= (CLKPWR_PCLKSEL_SET(bitpos, DivVal)); - } - /* PCLKSEL1 selected */ - else - { - /* Clear two bit at bit position */ - LPC_SC->PCLKSEL1 &= ~(CLKPWR_PCLKSEL_BITMASK(bitpos)); - - /* Set two selected bit */ - LPC_SC->PCLKSEL1 |= (CLKPWR_PCLKSEL_SET(bitpos, DivVal)); - } -} - - -/*********************************************************************//** - * @brief Get current value of each Peripheral Clock Selection - * @param[in] ClkType Peripheral Clock Selection of each type, - * should be one of the following: - * - CLKPWR_PCLKSEL_WDT : WDT - - CLKPWR_PCLKSEL_TIMER0 : Timer 0 - - CLKPWR_PCLKSEL_TIMER1 : Timer 1 - - CLKPWR_PCLKSEL_UART0 : UART 0 - - CLKPWR_PCLKSEL_UART1 : UART 1 - - CLKPWR_PCLKSEL_PWM1 : PWM 1 - - CLKPWR_PCLKSEL_I2C0 : I2C 0 - - CLKPWR_PCLKSEL_SPI : SPI - - CLKPWR_PCLKSEL_SSP1 : SSP 1 - - CLKPWR_PCLKSEL_DAC : DAC - - CLKPWR_PCLKSEL_ADC : ADC - - CLKPWR_PCLKSEL_CAN1 : CAN 1 - - CLKPWR_PCLKSEL_CAN2 : CAN 2 - - CLKPWR_PCLKSEL_ACF : ACF - - CLKPWR_PCLKSEL_QEI : QEI - - CLKPWR_PCLKSEL_PCB : PCB - - CLKPWR_PCLKSEL_I2C1 : I2C 1 - - CLKPWR_PCLKSEL_SSP0 : SSP 0 - - CLKPWR_PCLKSEL_TIMER2 : Timer 2 - - CLKPWR_PCLKSEL_TIMER3 : Timer 3 - - CLKPWR_PCLKSEL_UART2 : UART 2 - - CLKPWR_PCLKSEL_UART3 : UART 3 - - CLKPWR_PCLKSEL_I2C2 : I2C 2 - - CLKPWR_PCLKSEL_I2S : I2S - - CLKPWR_PCLKSEL_RIT : RIT - - CLKPWR_PCLKSEL_SYSCON : SYSCON - - CLKPWR_PCLKSEL_MC : MC - - * @return Value of Selected Peripheral Clock Selection - **********************************************************************/ -uint32_t CLKPWR_GetPCLKSEL (uint32_t ClkType) -{ - uint32_t bitpos, retval; - - if (ClkType < 32) - { - bitpos = ClkType; - retval = LPC_SC->PCLKSEL0; - } - else - { - bitpos = ClkType - 32; - retval = LPC_SC->PCLKSEL1; - } - - retval = CLKPWR_PCLKSEL_GET(bitpos, retval); - return retval; -} - - - -/*********************************************************************//** - * @brief Get current value of each Peripheral Clock - * @param[in] ClkType Peripheral Clock Selection of each type, - * should be one of the following: - * - CLKPWR_PCLKSEL_WDT : WDT - - CLKPWR_PCLKSEL_TIMER0 : Timer 0 - - CLKPWR_PCLKSEL_TIMER1 : Timer 1 - - CLKPWR_PCLKSEL_UART0 : UART 0 - - CLKPWR_PCLKSEL_UART1 : UART 1 - - CLKPWR_PCLKSEL_PWM1 : PWM 1 - - CLKPWR_PCLKSEL_I2C0 : I2C 0 - - CLKPWR_PCLKSEL_SPI : SPI - - CLKPWR_PCLKSEL_SSP1 : SSP 1 - - CLKPWR_PCLKSEL_DAC : DAC - - CLKPWR_PCLKSEL_ADC : ADC - - CLKPWR_PCLKSEL_CAN1 : CAN 1 - - CLKPWR_PCLKSEL_CAN2 : CAN 2 - - CLKPWR_PCLKSEL_ACF : ACF - - CLKPWR_PCLKSEL_QEI : QEI - - CLKPWR_PCLKSEL_PCB : PCB - - CLKPWR_PCLKSEL_I2C1 : I2C 1 - - CLKPWR_PCLKSEL_SSP0 : SSP 0 - - CLKPWR_PCLKSEL_TIMER2 : Timer 2 - - CLKPWR_PCLKSEL_TIMER3 : Timer 3 - - CLKPWR_PCLKSEL_UART2 : UART 2 - - CLKPWR_PCLKSEL_UART3 : UART 3 - - CLKPWR_PCLKSEL_I2C2 : I2C 2 - - CLKPWR_PCLKSEL_I2S : I2S - - CLKPWR_PCLKSEL_RIT : RIT - - CLKPWR_PCLKSEL_SYSCON : SYSCON - - CLKPWR_PCLKSEL_MC : MC - - * @return Value of Selected Peripheral Clock - **********************************************************************/ -uint32_t CLKPWR_GetPCLK (uint32_t ClkType) -{ - uint32_t retval, div; - - retval = SystemCoreClock; - div = CLKPWR_GetPCLKSEL(ClkType); - - switch (div) - { - case 0: - div = 4; - break; - - case 1: - div = 1; - break; - - case 2: - div = 2; - break; - - case 3: - div = 8; - break; - } - retval /= div; - - return retval; -} - - - -/*********************************************************************//** - * @brief Configure power supply for each peripheral according to NewState - * @param[in] PPType Type of peripheral used to enable power, - * should be one of the following: - * - CLKPWR_PCONP_PCTIM0 : Timer 0 - - CLKPWR_PCONP_PCTIM1 : Timer 1 - - CLKPWR_PCONP_PCUART0 : UART 0 - - CLKPWR_PCONP_PCUART1 : UART 1 - - CLKPWR_PCONP_PCPWM1 : PWM 1 - - CLKPWR_PCONP_PCI2C0 : I2C 0 - - CLKPWR_PCONP_PCSPI : SPI - - CLKPWR_PCONP_PCRTC : RTC - - CLKPWR_PCONP_PCSSP1 : SSP 1 - - CLKPWR_PCONP_PCAD : ADC - - CLKPWR_PCONP_PCAN1 : CAN 1 - - CLKPWR_PCONP_PCAN2 : CAN 2 - - CLKPWR_PCONP_PCGPIO : GPIO - - CLKPWR_PCONP_PCRIT : RIT - - CLKPWR_PCONP_PCMC : MC - - CLKPWR_PCONP_PCQEI : QEI - - CLKPWR_PCONP_PCI2C1 : I2C 1 - - CLKPWR_PCONP_PCSSP0 : SSP 0 - - CLKPWR_PCONP_PCTIM2 : Timer 2 - - CLKPWR_PCONP_PCTIM3 : Timer 3 - - CLKPWR_PCONP_PCUART2 : UART 2 - - CLKPWR_PCONP_PCUART3 : UART 3 - - CLKPWR_PCONP_PCI2C2 : I2C 2 - - CLKPWR_PCONP_PCI2S : I2S - - CLKPWR_PCONP_PCGPDMA : GPDMA - - CLKPWR_PCONP_PCENET : Ethernet - - CLKPWR_PCONP_PCUSB : USB - * - * @param[in] NewState New state of Peripheral Power, should be: - * - ENABLE : Enable power for this peripheral - * - DISABLE : Disable power for this peripheral - * - * @return none - **********************************************************************/ -void CLKPWR_ConfigPPWR (uint32_t PPType, FunctionalState NewState) -{ - if (NewState == ENABLE) - { - LPC_SC->PCONP |= PPType & CLKPWR_PCONP_BITMASK; - } - else if (NewState == DISABLE) - { - LPC_SC->PCONP &= (~PPType) & CLKPWR_PCONP_BITMASK; - } -} - - -/*********************************************************************//** - * @brief Enter Sleep mode with co-operated instruction by the Cortex-M3. - * @param[in] None - * @return None - **********************************************************************/ -void CLKPWR_Sleep(void) -{ - LPC_SC->PCON = 0x00; - /* Sleep Mode*/ - __WFI(); -} - - -/*********************************************************************//** - * @brief Enter Deep Sleep mode with co-operated instruction by the Cortex-M3. - * @param[in] None - * @return None - **********************************************************************/ -void CLKPWR_DeepSleep(void) -{ - /* Deep-Sleep Mode, set SLEEPDEEP bit */ - SCB->SCR = 0x4; - LPC_SC->PCON = 0x8; - /* Deep Sleep Mode*/ - __WFI(); -} - - -/*********************************************************************//** - * @brief Enter Power Down mode with co-operated instruction by the Cortex-M3. - * @param[in] None - * @return None - **********************************************************************/ -void CLKPWR_PowerDown(void) -{ - /* Deep-Sleep Mode, set SLEEPDEEP bit */ - SCB->SCR = 0x4; - LPC_SC->PCON = 0x09; - /* Power Down Mode*/ - __WFI(); -} - - -/*********************************************************************//** - * @brief Enter Deep Power Down mode with co-operated instruction by the Cortex-M3. - * @param[in] None - * @return None - **********************************************************************/ -void CLKPWR_DeepPowerDown(void) -{ - /* Deep-Sleep Mode, set SLEEPDEEP bit */ - SCB->SCR = 0x4; - LPC_SC->PCON = 0x03; - /* Deep Power Down Mode*/ - __WFI(); -} - -/** - * @} - */ - -/** - * @} - */ - -/* --------------------------------- End Of File ------------------------------ */ -#endif /* __LPC17XX__ */