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/************************************************************************
* arch/arm/src/lpc31xx/lpc31_clkdomain.c
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* References:
* - UM10314 LPC3130/31 User manual Rev. 1.01 � 9 September 2009
* - lpc313x.cdl.drivers.zip example driver code
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************/
/************************************************************************
* Included Files
************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include "up_arch.h"
#include "lpc31_cgudrvr.h"
/************************************************************************
* Pre-processor Definitions
************************************************************************/
/************************************************************************
* Private Data
************************************************************************/
/************************************************************************
* Private Functions
************************************************************************/
/************************************************************************
* Public Functions
************************************************************************/
/************************************************************************
* Name: lpc31_clkdomain
*
* Description:
* Given a clock ID, return the ID of the domain in which the clock
* resides.
*
************************************************************************/
enum lpc31_domainid_e lpc31_clkdomain(enum lpc31_clockid_e clkid)
{
if (clkid <= CLKID_SYSBASE_LAST) /* Domain 0: SYS_BASE */
{
return DOMAINID_SYS;
}
else if (clkid <= CLKID_AHB0APB0_LAST) /* Domain 1: AHB0APB0_BASE */
{
return DOMAINID_AHB0APB0;
}
else if (clkid <= CLKID_AHB0APB1_LAST) /* Domain 2: AHB0APB1_BASE */
{
return DOMAINID_AHB0APB1;
}
else if (clkid <= CLKID_AHB0APB2_LAST) /* Domain 3: AHB0APB2_BASE */
{
return DOMAINID_AHB0APB2;
}
else if (clkid <= CLKID_AHB0APB3_LAST) /* Domain 4: AHB0APB3_BASE */
{
return DOMAINID_AHB0APB3;
}
else if (clkid <= CLKID_PCM_LAST) /* Domain 5: PCM_BASE */
{
return DOMAINID_PCM;
}
else if (clkid <= CLKID_UART_LAST) /* Domain 6: UART_BASE */
{
return DOMAINID_UART;
}
else if (clkid <= CLKID_CLK1024FS_LAST) /* Domain 7: CLK1024FS_BASE */
{
return DOMAINID_CLK1024FS;
}
else if (clkid <= CLKID_I2SRXBCK0_LAST) /* Domain 8: BCK0_BASE */
{
return DOMAINID_BCK0;
}
else if (clkid <= CLKID_I2SRXBCK1_LAST) /* Domain 9: BCK1_BASE */
{
return DOMAINID_BCK1;
}
else if (clkid <= CLKID_SPI_LAST) /* Domain 10: SPI_BASE */
{
return DOMAINID_SPI;
}
else /* if (clkid <= CLKID_SYSCLKO_LAST) */ /* Domain 11: SYSCLKO_BASE */
{
return DOMAINID_SYSCLKO;
}
}
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