SAMD20: Move some common SERCOM logic to a separate file where it can be shared
This commit is contained in:
parent
c55ac71603
commit
916308efc1
@ -6618,3 +6618,7 @@
|
||||
* drivers/lcd/mio283qt9a.c: Bug fix from Toby Duckwork (2014-2-19).
|
||||
* fs/fs_rename.c: 'rename' can now be used to rename nodes in the
|
||||
pseudo-filesystem (2014-2-19).
|
||||
* arch/arm/src/samd/sam_sercom.c: Move some common SERCOM logic
|
||||
from the USART-specific files to a share-able file where it can
|
||||
also be used by SPI and I2C drivers (2014-2-19).
|
||||
|
||||
|
@ -69,7 +69,8 @@ endif
|
||||
|
||||
CHIP_ASRCS =
|
||||
CHIP_CSRCS = sam_clockconfig.c sam_idle.c sam_irq.c sam_lowputc.c
|
||||
CHIP_CSRCS += sam_port.c sam_serial.c sam_start.c sam_timerisr.c sam_usart.c
|
||||
CHIP_CSRCS += sam_port.c sam_sercom.c sam_serial.c sam_start.c
|
||||
CHIP_CSRCS += sam_timerisr.c sam_usart.c
|
||||
|
||||
ifeq ($(CONFIG_NUTTX_KERNEL),y)
|
||||
CHIP_CSRCS += sam_userspace.c
|
||||
|
@ -95,101 +95,6 @@ sam_wait_synchronization(const struct sam_usart_config_s * const config)
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_gclk_configure
|
||||
*
|
||||
* Description:
|
||||
* Configure the SERCOM USART source clock.
|
||||
*
|
||||
* Two generic clocks are used by the SERCOM: GCLK_SERCOMx_CORE and
|
||||
* GCLK_SERCOMx_SLOW. The core clock (GCLK_SERCOMx_CORE) is required to
|
||||
* clock the SERCOM while operating as a master, while the slow clock
|
||||
* (GCLK_SERCOM_SLOW) is only required for certain functions. SERCOM
|
||||
* modules must share the same slow GCLK channel ID.
|
||||
*
|
||||
* The baud-rate generator runs off the GCLK_SERCOMx_CORE clock (or,
|
||||
* optionally, external clock).
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef HAVE_USART
|
||||
static inline void
|
||||
sam_gclk_configure(const struct sam_usart_config_s * const config)
|
||||
{
|
||||
uint16_t regval;
|
||||
uint8_t glckcore;
|
||||
|
||||
/* Set up the SERCOMn_GCLK_ID_CORE clock */
|
||||
|
||||
glckcore = (uint8_t)SERCOM_GCLK_ID_CORE(config->sercom);
|
||||
regval = ((uint16_t)glckcore << GCLK_CLKCTRL_ID_SHIFT);
|
||||
|
||||
/* Select and disable the SERCOMn_GCLK_ID_CORE generic clock */
|
||||
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
|
||||
/* Wait for clock to become disabled */
|
||||
|
||||
while ((getreg16(SAM_GCLK_CLKCTRL) & GCLK_CLKCTRL_CLKEN) != 0);
|
||||
|
||||
/* Select the SERCOMn_GCLK_ID_CORE source clock generator */
|
||||
|
||||
regval |= (uint16_t)config->gclkgen << GCLK_CLKCTRL_GEN_SHIFT;
|
||||
|
||||
#if 0 /* Not yet supported */
|
||||
/* Enable write lock if requested to prevent further modification */
|
||||
|
||||
if (config->wrlock)
|
||||
{
|
||||
regval |= GCLK_CLKCTRL_WRTLOCK;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Write the new configuration */
|
||||
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
|
||||
/* Enable the SERCOMn_GCLK_ID_CORE generic clock */
|
||||
|
||||
regval |= GCLK_CLKCTRL_CLKEN;
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
|
||||
/* Set up the SERCOM_GCLK_ID_SLOW clock */
|
||||
|
||||
regval = (SERCOM_GCLK_ID_SLOW << GCLK_CLKCTRL_ID_SHIFT);
|
||||
|
||||
/* Select and disable the SERCOM_GCLK_ID_SLOW generic clock */
|
||||
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
|
||||
/* Wait for clock to become disabled */
|
||||
|
||||
while ((getreg16(SAM_GCLK_CLKCTRL) & GCLK_CLKCTRL_CLKEN) != 0);
|
||||
|
||||
/* Select the SERCOM_GCLK_ID_SLOW clock source generator */
|
||||
|
||||
regval |= (uint16_t)config->gclkgen << GCLK_CLKCTRL_GEN_SHIFT;
|
||||
|
||||
#if 0 /* Not yet supported */
|
||||
/* Enable write lock if requested to prevent further modification */
|
||||
|
||||
if (config->wrlock)
|
||||
{
|
||||
regval |= GCLK_CLKCTRL_WRTLOCK;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Write the new configuration */
|
||||
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
|
||||
/* Enable the SERCOM_GCLK_ID_SLOW generic clock */
|
||||
|
||||
regval |= GCLK_CLKCTRL_CLKEN;
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_usart_configure
|
||||
*
|
||||
@ -396,11 +301,12 @@ int sam_usart_internal(const struct sam_usart_config_s * const config)
|
||||
regval |= PM_APBCMASK_SERCOM(config->sercom);
|
||||
putreg32(regval, SAM_PM_APBCMASK);
|
||||
|
||||
/* Configure the GCCLK for the SERCOM module */
|
||||
/* Configure the GCLKs for the SERCOM module */
|
||||
|
||||
sam_gclk_configure(config);
|
||||
sercom_coreclk_configure(config->sercom, config->gclkgen, false);
|
||||
sercom_slowclk_configure(config->gclkgen);
|
||||
|
||||
/* Set configuration according to the board configuration */
|
||||
/* Set USART configuration according to the board configuration */
|
||||
|
||||
ret = sam_usart_configure(config);
|
||||
if (ret == OK)
|
||||
|
@ -1,4 +1,4 @@
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* arch/arm/src/samd/sam_lowputc.h
|
||||
*
|
||||
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
|
||||
@ -31,29 +31,29 @@
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_SAMD_SAM_LOWPUTC_H
|
||||
#define __ARCH_ARM_SRC_SAMD_SAM_LOWPUTC_H
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include "sam_config.h"
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
@ -66,17 +66,18 @@ extern "C"
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Name: sam_lowsetup
|
||||
*
|
||||
* Description:
|
||||
* Called at the very beginning of _start. Performs low level initialization.
|
||||
* Called at the very beginning of _start. Performs low level
|
||||
* initialization.
|
||||
*
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
void sam_lowsetup(void);
|
||||
|
||||
@ -88,7 +89,7 @@ void sam_lowsetup(void);
|
||||
* This configures the SERCOM as a USART, but does not configure USART
|
||||
* interrupts or enable the USART.
|
||||
*
|
||||
*****************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef HAVE_USART
|
||||
struct sam_usart_config_s;
|
||||
@ -102,7 +103,7 @@ int sam_usart_initialize(const struct sam_usart_config_s * const config);
|
||||
* Reset the USART SERCOM. This restores all SERCOM register to the
|
||||
* initial state and disables the SERCOM.
|
||||
*
|
||||
*****************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef HAVE_USART
|
||||
struct sam_usart_config_s;
|
||||
@ -115,7 +116,7 @@ void sam_usart_reset(const struct sam_usart_config_s * const config);
|
||||
* Description:
|
||||
* Output one character to the USART using a simple polling method.
|
||||
*
|
||||
*****************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef HAVE_SERIAL_CONSOLE
|
||||
void sam_lowputc(uint32_t ch);
|
||||
|
182
arch/arm/src/samd/sam_sercom.c
Normal file
182
arch/arm/src/samd/sam_sercom.c
Normal file
@ -0,0 +1,182 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/samd/sam_lowputc.c
|
||||
*
|
||||
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* References:
|
||||
* 1. "Atmel SAM D20J / SAM D20G / SAM D20E ARM-Based Microcontroller
|
||||
* Datasheet", 42129J–SAM–12/2013
|
||||
*
|
||||
* 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 <stdbool.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
|
||||
#include "sam_config.h"
|
||||
|
||||
#include "chip/sam_pm.h"
|
||||
#include "chip/sam_gclk.h"
|
||||
#include "chip/sam_sercom.h"
|
||||
|
||||
#include "sam_sercom.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sercom_coreclk_configure
|
||||
*
|
||||
* Description:
|
||||
* Configure the SERCOM core source clock.
|
||||
*
|
||||
* Two generic clocks are used by the SERCOM: GCLK_SERCOMx_CORE and
|
||||
* GCLK_SERCOMx_SLOW. The core clock (GCLK_SERCOMx_CORE) is required to
|
||||
* clock the SERCOM while operating as a master, while the slow clock
|
||||
* (GCLK_SERCOM_SLOW) is only required for certain functions. SERCOM
|
||||
* modules must share the same slow GCLK channel ID.
|
||||
*
|
||||
* The baud-rate generator runs off the GCLK_SERCOMx_CORE clock (or,
|
||||
* optionally, external clock).
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void sercom_coreclk_configure(int sercom, int gclkgen, bool wrlock)
|
||||
{
|
||||
uint16_t regval;
|
||||
uint8_t glckcore;
|
||||
|
||||
/* Set up the SERCOMn_GCLK_ID_CORE clock */
|
||||
|
||||
glckcore = (uint8_t)SERCOM_GCLK_ID_CORE(sercom);
|
||||
regval = ((uint16_t)glckcore << GCLK_CLKCTRL_ID_SHIFT);
|
||||
|
||||
/* Select and disable the SERCOMn_GCLK_ID_CORE generic clock */
|
||||
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
|
||||
/* Wait for clock to become disabled */
|
||||
|
||||
while ((getreg16(SAM_GCLK_CLKCTRL) & GCLK_CLKCTRL_CLKEN) != 0);
|
||||
|
||||
/* Select the SERCOMn_GCLK_ID_CORE source clock generator */
|
||||
|
||||
regval |= (uint16_t)gclkgen << GCLK_CLKCTRL_GEN_SHIFT;
|
||||
|
||||
/* Write the new configuration */
|
||||
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
|
||||
/* Enable the SERCOMn_GCLK_ID_CORE generic clock, optionally locking
|
||||
* further writes to this GCLK.
|
||||
*/
|
||||
|
||||
regval |= GCLK_CLKCTRL_CLKEN;
|
||||
|
||||
if (wrlock)
|
||||
{
|
||||
regval |= GCLK_CLKCTRL_WRTLOCK;
|
||||
}
|
||||
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sercom_slowclk_configure
|
||||
*
|
||||
* Description:
|
||||
* Configure the SERCOM slow source clock.
|
||||
*
|
||||
* Two generic clocks are used by the SERCOM: GCLK_SERCOMx_CORE and
|
||||
* GCLK_SERCOMx_SLOW. The core clock (GCLK_SERCOMx_CORE) is required to
|
||||
* clock the SERCOM while operating as a master, while the slow clock
|
||||
* (GCLK_SERCOM_SLOW) is only required for certain functions. SERCOM
|
||||
* modules must share the same slow GCLK channel ID.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void sercom_slowclk_configure(int gclkgen)
|
||||
{
|
||||
uint16_t regval;
|
||||
|
||||
/* Set up the SERCOM_GCLK_ID_SLOW clock */
|
||||
|
||||
regval = (SERCOM_GCLK_ID_SLOW << GCLK_CLKCTRL_ID_SHIFT);
|
||||
|
||||
/* Select and disable the SERCOM_GCLK_ID_SLOW generic clock */
|
||||
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
|
||||
/* Wait for clock to become disabled */
|
||||
|
||||
while ((getreg16(SAM_GCLK_CLKCTRL) & GCLK_CLKCTRL_CLKEN) != 0);
|
||||
|
||||
/* Select the SERCOM_GCLK_ID_SLOW clock source generator */
|
||||
|
||||
regval |= (uint16_t)gclkgen << GCLK_CLKCTRL_GEN_SHIFT;
|
||||
|
||||
/* Write the new configuration */
|
||||
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
|
||||
/* Enable the GCLK_SERCOM_SLOW generic clock and lock further
|
||||
* writes to this GCLK. When this bit is written, it will lock
|
||||
* further writes to the generic clock pointed by the CLKCTRL.ID. The
|
||||
* generic clock generator pointed by CLKCTRL.GEN and the GENDIV.DIV
|
||||
* will also be locked.
|
||||
*
|
||||
* We lock the SERCOM slow clock because it is common to all SERCOM modules
|
||||
* and, once set, should not be changed again.
|
||||
*/
|
||||
|
||||
regval |= (GCLK_CLKCTRL_WRTLOCK | GCLK_CLKCTRL_CLKEN);
|
||||
putreg16(regval, SAM_GCLK_CLKCTRL);
|
||||
}
|
115
arch/arm/src/samd/sam_sercom.h
Normal file
115
arch/arm/src/samd/sam_sercom.h
Normal file
@ -0,0 +1,115 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/samd/sam_sercom.h
|
||||
*
|
||||
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_SAMD_SAM_SERCOM_H
|
||||
#define __ARCH_ARM_SRC_SAMD_SAM_SERCOM_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <stdbool.h>
|
||||
|
||||
#include "sam_config.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
#define EXTERN extern "C"
|
||||
extern "C"
|
||||
{
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
/****************************************************************************
|
||||
* Name: sercom_coreclk_configure
|
||||
*
|
||||
* Description:
|
||||
* Configure the SERCOM core source clock.
|
||||
*
|
||||
* Two generic clocks are used by the SERCOM: GCLK_SERCOMx_CORE and
|
||||
* GCLK_SERCOMx_SLOW. The core clock (GCLK_SERCOMx_CORE) is required to
|
||||
* clock the SERCOM while operating as a master, while the slow clock
|
||||
* (GCLK_SERCOM_SLOW) is only required for certain functions. SERCOM
|
||||
* modules must share the same slow GCLK channel ID.
|
||||
*
|
||||
* The baud-rate generator runs off the GCLK_SERCOMx_CORE clock (or,
|
||||
* optionally, external clock).
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void sercom_coreclk_configure(int sercom, int gclkgen, bool wrlock);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sercom_slowclk_configure
|
||||
*
|
||||
* Description:
|
||||
* Configure the SERCOM slow source clock.
|
||||
*
|
||||
* Two generic clocks are used by the SERCOM: GCLK_SERCOMx_CORE and
|
||||
* GCLK_SERCOMx_SLOW. The core clock (GCLK_SERCOMx_CORE) is required to
|
||||
* clock the SERCOM while operating as a master, while the slow clock
|
||||
* (GCLK_SERCOM_SLOW) is only required for certain functions. SERCOM
|
||||
* modules must share the same slow GCLK channel ID.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void sercom_slowclk_configure(int gclkgen);
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __ARCH_ARM_SRC_SAMD_SAM_SERCOM_H */
|
@ -1,4 +1,4 @@
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* arch/arm/src/samd/sam_serial.h
|
||||
*
|
||||
* Copyright (C) 2014 Gregory Nutt. All rights reserved.
|
||||
@ -31,37 +31,37 @@
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_SAMD_SAM_SERIAL_H
|
||||
#define __ARCH_ARM_SRC_SAMD_SAM_SERIAL_H
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include "sam_config.h"
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Inline Functions
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
#endif /* __ARCH_ARM_SRC_SAMD_SAM_SERIAL_H */
|
||||
|
@ -279,6 +279,7 @@ int sam_spicmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd)
|
||||
(void)sam_portwrite(PORT_OLED_DATA, !cmd);
|
||||
}
|
||||
#endif
|
||||
|
||||
return OK;
|
||||
}
|
||||
#endif
|
||||
|
@ -128,11 +128,9 @@
|
||||
|
||||
# define PORT_SD_CD (PORT_INTERRUPT | PORT_INT_CHANGE | PORT_PULL_UP | \
|
||||
PORTF | PORT_PIN5)
|
||||
# define IRQ_SD_CD SAM_IRQ_PB5
|
||||
|
||||
# define PORT_SD_CS (PORT_OUTPUT | PORT_PULL_NONE | PORT_OUTPUT_SET | \
|
||||
PORTA | PORT_PIN5)
|
||||
# define SD_CSNO 0
|
||||
|
||||
# elif defined(CONFIG_SAMD20_XPLAINED_IOMODULE_EXT2)
|
||||
|
||||
@ -143,11 +141,9 @@
|
||||
|
||||
# define PORT_CD (PORT_INTERRUPT | PORT_INT_CHANGE | PORT_PULL_UP | \
|
||||
PORTB | PORT_PIN15)
|
||||
# define IRQ_CD SAM_IRQ_PB15
|
||||
|
||||
# define PORT_SD_CS (PORT_OUTPUT | PORT_PULL_NONE | PORT_OUTPUT_SET | \
|
||||
PORTA | PORT_PIN17)
|
||||
# define SD_CSNO 2
|
||||
|
||||
# else
|
||||
# error Which connector is the I/O1 module installed in?
|
||||
@ -200,7 +196,6 @@
|
||||
PORTB | PORT_PIN5)
|
||||
# define PORT_OLED_CS (PORT_OUTPUT | PORT_PULL_NONE | PORT_OUTPUT_SET | \
|
||||
PORTA | PORT_PIN5)
|
||||
# define OLED_CSNO 0
|
||||
|
||||
# elif defined(CONFIG_SAMD20_XPLAINED_OLED1MODULE_EXT2)
|
||||
|
||||
@ -215,7 +210,6 @@
|
||||
PORTB | PORT_PIN15)
|
||||
# define PORT_OLED_CS (PORT_OUTPUT | PORT_PULL_NONE | PORT_OUTPUT_SET | \
|
||||
PORTA | PORT_PIN17)
|
||||
# define OLED_CSNO 2
|
||||
|
||||
# else
|
||||
# error Which connector is the OLED1 module installed in?
|
||||
|
@ -223,6 +223,6 @@ int rename(FAR const char *oldpath, FAR const char *newpath)
|
||||
errout_with_oldinode:
|
||||
inode_release(oldinode);
|
||||
errout:
|
||||
set_errno(ret);
|
||||
set_errno(errcode);
|
||||
return ERROR;
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user