diff --git a/arch/arm/src/sam3u/Make.defs b/arch/arm/src/sam3u/Make.defs index dd66295be1..b63b9017a6 100755 --- a/arch/arm/src/sam3u/Make.defs +++ b/arch/arm/src/sam3u/Make.defs @@ -45,6 +45,6 @@ CMN_CSRCS = up_allocateheap.c up_assert.c up_blocktask.c up_copystate.c \ up_usestack.c up_doirq.c up_hardfault.c up_svcall.c CHIP_ASRCS = -CHIP_CSRCS = sam3u_clockconfig.c sam3u_irq.c sam3u_lowputc.c sam3u_start.c \ - sam3u_timerisr.c +CHIP_CSRCS = sam3u_clockconfig.c sam3u_irq.c sam3u_lowputc.c sam3u_pio.c \ + sam3u_start.c sam3u_timerisr.c diff --git a/arch/arm/src/sam3u/sam3u_internal.h b/arch/arm/src/sam3u/sam3u_internal.h index b6fa996baa..bcc7eb5d56 100755 --- a/arch/arm/src/sam3u/sam3u_internal.h +++ b/arch/arm/src/sam3u/sam3u_internal.h @@ -66,12 +66,12 @@ * MM.. .... .... .... */ -#define GPIO_CFG_SHIFT (14) /* Bits 14-15: GPIO mode */ -#define GPIO_CFG_MASK (3 << GPIO_CNF_SHIFT) -# define GPIO_INPUT (0 << GPIO_CNF_SHIFT) /* Input */ -# define GPIO_OUTPUT (1 << GPIO_CNF_SHIFT) /* Output */ -# define GPIO_PERIPHA (2 << GPIO_CNF_SHIFT) /* Controlled by periph A signal */ -# define GPIO_PERIPHB (3 << GPIO_CNF_SHIFT) /* Controlled by periph B signal */ +#define GPIO_MODE_SHIFT (14) /* Bits 14-15: GPIO mode */ +#define GPIO_MODE_MASK (3 << GPIO_MODE_SHIFT) +# define GPIO_INPUT (0 << GPIO_MODE_SHIFT) /* Input */ +# define GPIO_OUTPUT (1 << GPIO_MODE_SHIFT) /* Output */ +# define GPIO_PERIPHA (2 << GPIO_MODE_SHIFT) /* Controlled by periph A signal */ +# define GPIO_PERIPHB (3 << GPIO_MODE_SHIFT) /* Controlled by periph B signal */ /* These bits set the configuration of the pin: * ..CC C... .... .... diff --git a/arch/arm/src/sam3u/sam3u_pio.c b/arch/arm/src/sam3u/sam3u_pio.c new file mode 100755 index 0000000000..6c40c1dcdb --- /dev/null +++ b/arch/arm/src/sam3u/sam3u_pio.c @@ -0,0 +1,209 @@ +/**************************************************************************** + * arch/arm/src/sam3u/sam3u_pio.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 + +#include +#include +#include +#include + +#include +#include + +#include "up_internal.h" +#include "up_arch.h" + +#include "chip.h" +#include "sam3u_internal.h" +#include "sam3u_pio.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/************************************************************************************ + * Name: sam3u_configinput + * + * Description: + * Configure a GPIO input pin based on bit-encoded description of the pin. + * + ************************************************************************************/ + +static inline int sam3u_configinput(uint16_t cfgset) +{ +#warning "Not implemented" +return -ENOSYS; +} + +/************************************************************************************ + * Name: sam3u_configoutput + * + * Description: + * Configure a GPIO output pin based on bit-encoded description of the pin. + * + ************************************************************************************/ + +static inline int sam3u_configoutput(uint16_t cfgset) +{ +#warning "Not implemented" +return -ENOSYS; +} + +/************************************************************************************ + * Name: sam3u_configperipha + * + * Description: + * Configure a GPIO pin driven by a peripheral A signal based on bit-encoded + * description of the pin. + * + ************************************************************************************/ + +static inline int sam3u_configperipha(uint16_t cfgset) +{ +#warning "Not implemented" +return -ENOSYS; +} + +/************************************************************************************ + * Name: sam3u_configperipha + * + * Description: + * Configure a GPIO pin driven by a peripheral A signal based on bit-encoded + * description of the pin. + * + ************************************************************************************/ + +static inline int sam3u_configperiphb(uint16_t cfgset) +{ +#warning "Not implemented" +return -ENOSYS; +} + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/************************************************************************************ + * Name: sam3u_configgpio + * + * Description: + * Configure a GPIO pin based on bit-encoded description of the pin. + * + ************************************************************************************/ + +int sam3u_configgpio(uint16_t cfgset) +{ + int ret; + + switch (cfgset & GPIO_MODE_MASK) + { + case GPIO_INPUT: + ret = sam3u_configinput(cfgset); + break; + + case GPIO_OUTPUT: + ret = sam3u_configoutput(cfgset); + break; + + case GPIO_PERIPHA: + ret = sam3u_configperipha(cfgset); + break; + + case GPIO_PERIPHB: + ret = sam3u_configperiphb(cfgset); + break; + + default: + ret = -EINVAL; + break; + } + return ret; +} + +/************************************************************************************ + * Name: sam3u_gpiowrite + * + * Description: + * Write one or zero to the selected GPIO pin + * + ************************************************************************************/ + +void sam3u_gpiowrite(uint16_t pinset, bool value) +{ +#warning "Not implemented" +} + +/************************************************************************************ + * Name: sam3u_gpioread + * + * Description: + * Read one or zero from the selected GPIO pin + * + ************************************************************************************/ + +bool sam3u_gpioread(uint16_t pinset) +{ +#warning "Not implemented" +return false; +} + +/************************************************************************************ + * Function: sam3u_dumpgpio + * + * Description: + * Dump all GPIO registers associated with the port of the provided pin description. + * + ************************************************************************************/ + +#ifdef CONFIG_DEBUG +int sam3u_dumpgpio(uint16_t pinset, const char *msg) +{ +#warning "Not implemented" +return -ENOSYS; +} +#endif