rt-thread/bsp/synopsys/embarc/device/device_hal/inc/dev_gpio.h

425 lines
19 KiB
C
Raw Normal View History

/* ------------------------------------------
* Copyright (c) 2016, Synopsys, Inc. All rights reserved.
* 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 of the Synopsys, Inc., 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 HOLDER 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.
*
* \version 2016.05
* \date 2014-06-17
* \author Huaqi Fang(Huaqi.Fang@synopsys.com)
--------------------------------------------- */
/**
* \defgroup DEVICE_HAL_GPIO GPIO Device HAL Interface
* \ingroup DEVICE_HAL_DEF
* \brief definitions for gpio device hardware layer (\ref dev_gpio.h)
* \details provide interfaces for gpio driver to implement
* Here is a diagram for the gpio interface.
*
* \htmlonly
* <div class="imagebox">
* <div style="width: 600px">
* <img src="pic/dev_gpio_hal.jpg" alt="GPIO Device HAL Interface Diagram"/>
* <p>GPIO Device HAL Interface Diagram</p>
* </div>
* </div>
* \endhtmlonly
*
* @{
*
* \file
* \brief gpio device hardware layer definitions
* \details Provide common definitions for gpio device,
* then the software developer can develop gpio driver
* following these definitions, and the applications
* can directly call this definition to realize functions
*
*/
#ifndef _DEVICE_HAL_GPIO_H_
#define _DEVICE_HAL_GPIO_H_
#include "device/device_hal/inc/dev_common.h"
/**
* \defgroup DEVICE_HAL_GPIO_DEFDIR GPIO Port Direction Definition
* \ingroup DEVICE_HAL_GPIO
* \brief Define macros to indicate gpio directions
* @{
*/
/*
* defines for gpio directions
*/
#define GPIO_DIR_INPUT (0) /*!< gpio works as input */
#define GPIO_DIR_OUTPUT (1) /*!< gpio works as output */
/** @} */
/**
* \defgroup DEVICE_HAL_GPIO_CTRLCMD GPIO Device Control Commands
* \ingroup DEVICE_HAL_GPIO
* \brief Definitions for gpio control command, used in \ref dev_gpio::gpio_control "GPIO IO Control"
* \details These commands defined here can be used in user code directly.
* - Parameters Usage
* - For passing parameters like integer, just use uint32_t/int32_t to directly pass values
* - For passing parameters for a structure, please use pointer to pass values
* - For getting some data, please use pointer to store the return data
* - Common Return Values
* - \ref E_OK, Control device successfully
* - \ref E_CLSED, Device is not opened
* - \ref E_OBJ, Device object is not valid or not exists
* - \ref E_PAR, Parameter is not valid for current control command
* - \ref E_SYS, Control device failed, due to hardware issues such as device is disabled
* - \ref E_NOSPT, Control command is not supported or not valid
* @{
*/
/**
* Set the \ref dev_gpio_info::direction "direction" of masked bits of gpio port into \ref GPIO_DIR_INPUT "input"
* - Param type : uint32_t
* - Param usage : 1 in each bit will be masked.
* - Return value explanation :
*/
#define GPIO_CMD_SET_BIT_DIR_INPUT DEV_SET_SYSCMD(0)
/**
* Set the \ref dev_gpio_info::direction "direction" of masked bits of gpio port into \ref GPIO_DIR_OUTPUT "output"
* - Param type : uint32_t
* - Param usage : 1 in each bit will be masked.
* - Return value explanation :
*/
#define GPIO_CMD_SET_BIT_DIR_OUTPUT DEV_SET_SYSCMD(1)
/**
* Get \ref dev_gpio_info::direction "gpio port direction".
* - Param type : uint32_t
* - Param usage : 1 bit for 1 bit of gpio port, 0 for input, 1 for output
* - Return value explanation :
*/
#define GPIO_CMD_GET_BIT_DIR DEV_SET_SYSCMD(2)
/**
* Set gpio interrupt configuration for each bit.
* - Param type : \ref DEV_GPIO_INT_CFG *
* - Param usage : store gpio interrupt configuration for each bit.
* - Return value explanation :
*/
#define GPIO_CMD_SET_BIT_INT_CFG DEV_SET_SYSCMD(3)
/**
* Get gpio interrupt configuration for each bit.
* - Param type : \ref DEV_GPIO_INT_CFG *
* - Param usage : First set int_bit_mask in DEV_GPIO_INT_CFG structure to
* the mask of which bit of GPIO you want to get. And the interrupt configuration
* will be stored in the structure DEV_GPIO_INT_CFG, each bit stand for each bit of port.
* - Return value explanation :
*/
#define GPIO_CMD_GET_BIT_INT_CFG DEV_SET_SYSCMD(4)
/**
* Set gpio service routine for each bit.
* - Param type : \ref DEV_GPIO_BIT_ISR *
* - Param usage : store gpio handler information for each bit, int handler's param will be DEV_GPIO *.
* - Return value explanation :
*/
#define GPIO_CMD_SET_BIT_ISR DEV_SET_SYSCMD(5)
/**
* Get gpio service routine for each bit.
* - Param type : \ref DEV_GPIO_BIT_ISR *
* - Param usage : By passing int_bit_ofs in DEV_GPIO_BIT_ISR,
* it will return interrupt handler for this bit and store it in int_bit_handler.
* - Return value explanation :
*/
#define GPIO_CMD_GET_BIT_ISR DEV_SET_SYSCMD(6)
/**
* Enable gpio interrupt of the masked bits.
* - Param type : uint32_t
* - Param usage : 1 in each bit will be masked.
* - Return value explanation :
*/
#define GPIO_CMD_ENA_BIT_INT DEV_SET_SYSCMD(7)
/**
* Disable gpio interrupt of the masked bits.
* - Param type : uint32_t
* - Param usage : 1 in each bit will be masked.
* - Return value explanation :
*/
#define GPIO_CMD_DIS_BIT_INT DEV_SET_SYSCMD(8)
/**
* Get \ref dev_gpio_info::method "gpio interrupt enable status".
* - Param type : uint32_t *
* - Param usage : 1 bit for 1 bit of gpio port, 0 for poll, 1 for interrupt
* - Return value explanation :
*/
#define GPIO_CMD_GET_BIT_MTHD DEV_SET_SYSCMD(9)
/* @} */
/**
* \defgroup DEVICE_HAL_GPIO_INT_CFG_SET GPIO Device Int Configuration Settings
* \ingroup DEVICE_HAL_GPIO
* \brief definition of gpio interrupt type
* @{
*/
/* GPIO Mask Defintions */
/** Mask none bits of the max 32bits */
#define GPIO_BITS_MASK_NONE (0)
/** Mask all bits of the max 32bits */
#define GPIO_BITS_MASK_ALL (0XFFFFFFFF)
/* GPIO Interrupt Type Related Definitions */
/** Level sensitive interrupt type for 1 bit */
#define GPIO_INT_LEVEL_TRIG (0)
/** Edge sensitive interrupt type for 1 bit */
#define GPIO_INT_EDGE_TRIG (1)
/** Level sensitive interrupt type for all 32 bits */
#define GPIO_INT_LEVEL_TRIG_ALL (0)
/** Edge sensitive interrupt type for all 32 bits */
#define GPIO_INT_EDGE_TRIG_ALL (0XFFFFFFFF)
/* For bit settings */
/** Set bit interrupt type of gpio into level sensitive */
#define GPIO_INT_BIT_LEVEL_TRIG(bit_ofs) (GPIO_INT_LEVEL_TRIG<<(bit_ofs))
/** Set bit interrupt type of gpio into edge sensitive */
#define GPIO_INT_BIT_EDGE_TRIG(bit_ofs) (GPIO_INT_EDGE_TRIG<<(bit_ofs))
/* For bits settings */
/** Set interrupt type of masked bits of gpio into level sensitive */
#define GPIO_INT_BITS_LEVEL_TRIG(bit_mask) (GPIO_INT_LEVEL_TRIG_ALL&(bit_mask))
/** Set bit interrupt type of gpio into edge sensitive */
#define GPIO_INT_BITS_EDGE_TRIG(bit_mask) (GPIO_INT_EDGE_TRIG_ALL&(bit_mask))
/* GPIO Interrupt Polarity Related Definitions */
/** GPIO Interrupt polarity type enum */
typedef enum gpio_int_polarity {
/* Polarity for 1 bit */
GPIO_INT_ACTIVE_LOW = 0, /*!< Active low for level-sensitive interrupt for 1 bit */
GPIO_INT_FALLING_EDGE = 0, /*!< Falling-edge for edge-sensitive interrupt for 1 bit */
GPIO_INT_ACTIVE_HIGH = 1, /*!< Active high for level-sensitive interrupt for 1 bit */
GPIO_INI_RISING_EDGE = 1, /*!< Rising-edge for edge-sensitive interrupt for 1 bit */
/* Polartiy for all 32 bits */
GPIO_INT_ACTIVE_LOW_ALL = 0, /*!< Active low for level-sensitive interrupt for all bits */
GPIO_INT_FALLING_EDGE_ALL = 0, /*!< Falling-edge for edge-sensitive interrupt for all bits */
GPIO_INT_ACTIVE_HIGH_ALL = 0XFFFFFFFF, /*!< Active high for level-sensitive interrupt for all bits */
GPIO_INI_RISING_EDGE_ALL = 0XFFFFFFFF /*!< Rising-edge for edge-sensitive interrupt for all bits */
} GPIO_INT_POLARITY;
/* For bit settings */
/** Set bit polarity of gpio into active low */
#define GPIO_INT_BIT_POL_ACT_LOW(bit_ofs) (GPIO_INT_ACTIVE_LOW<<(bit_ofs))
/** Set bit polarity of gpio into active high */
#define GPIO_INT_BIT_POL_ACT_HIGH(bit_ofs) (GPIO_INT_ACTIVE_HIGH<<(bit_ofs))
/** Set bit polarity of gpio into falling edge */
#define GPIO_INT_BIT_POL_FALL_EDGE(bit_ofs) (GPIO_INT_FALLING_EDGE<<(bit_ofs))
/** Set bit polarity of gpio into rising edge */
#define GPIO_INT_BIT_POL_RISE_EDGE(bit_ofs) (GPIO_INI_RISING_EDGE<<(bit_ofs))
/* For bits settings */
/** Set polarity of masked bits of gpio into active low */
#define GPIO_INT_BITS_POL_ACT_LOW(bit_mask) (GPIO_INT_ACTIVE_LOW_ALL&(bit_mask))
/** Set polarity of masked bits of gpio into active high */
#define GPIO_INT_BITS_POL_ACT_HIGH(bit_mask) (GPIO_INT_ACTIVE_HIGH_ALL&(bit_mask))
/** Set polarity of masked bits of gpio into falling edge */
#define GPIO_INT_BITS_POL_FALL_EDGE(bit_mask) (GPIO_INT_FALLING_EDGE_ALL&(bit_mask))
/** Set polarity of masked bits of gpio into rising edge */
#define GPIO_INT_BITS_POL_RISE_EDGE(bit_mask) (GPIO_INI_RISING_EDGE_ALL&(bit_mask))
/* GPIO Interrupt Debounce Related Definitions */
/* For bit settings */
/** Disable debounce circuitry for 1 bit */
#define GPIO_INT_NO_DEBOUNCE (0)
/** Enable debounce circuitry for 1 bit */
#define GPIO_INT_DEBOUNCE (1)
/* For bits settings */
/** Disable debounce circuitry for all bits */
#define GPIO_INT_NO_DEBOUNCE_ALL (0)
/** Enable debounce circuitry for all bits */
#define GPIO_INT_DEBOUNCE_ALL (0XFFFFFFFF)
/* For bit settings */
/** Set bit interrupt debounce of gpio into enabled */
#define GPIO_INT_BIT_ENA_DEBOUNCE(bit_ofs) (GPIO_INT_DEBOUNCE<<(bit_ofs))
/** Set bit interrupt debounce of gpio into disabled */
#define GPIO_INT_BIT_DIS_DEBOUNCE(bit_ofs) (GPIO_INT_NO_DEBOUNCE<<(bit_ofs))
/* For bits settings */
/** Set bit interrupt debounce of gpio into enabled */
#define GPIO_INT_BITS_ENA_DEBOUNCE(bit_mask) (GPIO_INT_DEBOUNCE_ALL&(bit_mask))
/** Set bit interrupt debounce of gpio into disabled */
#define GPIO_INT_BITS_DIS_DEBOUNCE(bit_mask) (GPIO_INT_NO_DEBOUNCE_ALL&(bit_mask))
/** GPIO interrupt configuration */
typedef struct dev_gpio_int_cfg {
uint32_t int_bit_mask; /*!< interrupt bit mask for gpio */
uint32_t int_bit_type; /*!< \ref GPIO_INT_LEVEL_TRIG "level sensitive" or \ref GPIO_INT_EDGE_TRIG "edge sensitive" for each gpio bit */
uint32_t int_bit_polarity; /*!< active high or low, refer to \ref GPIO_INT_POLARITY for each gpio bit */
uint32_t int_bit_debounce; /*!< \ref GPIO_INT_DEBOUNCE "enable" or \ref GPIO_INT_NO_DEBOUNCE "disable" debounce logic for each gpio bit */
} DEV_GPIO_INT_CFG, * DEV_GPIO_INT_CFG_PTR;
/** Default interrupt configuration for all gpio bits */
static const DEV_GPIO_INT_CFG gpio_int_cfg_default = \
{GPIO_BITS_MASK_ALL, GPIO_INT_LEVEL_TRIG_ALL, \
GPIO_INT_ACTIVE_LOW_ALL, GPIO_INT_NO_DEBOUNCE_ALL};
/** GPIO interrupt handler or Interrupt Service Routine(ISR) */
typedef void (*DEV_GPIO_HANDLER) (void *ptr);
/** interrupt handler for each port bit */
typedef struct dev_gpio_bit_isr {
uint32_t int_bit_ofs; /*!< int bit offset */
DEV_GPIO_HANDLER int_bit_handler; /*!< interrupt handler */
} DEV_GPIO_BIT_ISR, * DEV_GPIO_BIT_ISR_PTR;
/* @} */
/**
* \defgroup DEVICE_HAL_GPIO_DEVSTRUCT GPIO Device Interface Definition
* \ingroup DEVICE_HAL_GPIO
* \brief contains definitions of gpio device structure.
* \details This structure will be used in user implemented code, which was called
* \ref DEVICE_IMPL "Device Driver Implement Layer" for gpio to use in implementation code.
* Application developer should use the GPIO API provided here to access to GPIO devices.
* BSP developer should follow the API definition to implement GPIO device drivers.
* @{
*/
/**
* \brief gpio information struct definition
* \details informations about gpio open count, working status
* gpio registers and control block, gpio io direction and interrupt/poll for each bit of gpio
* \note Only available for gpio with max 32bits
*/
typedef struct dev_gpio_info {
void *gpio_ctrl; /*!< gpio control related pointer, implemented by bsp developer, and this should be set during gpio object implementation */
uint32_t opn_cnt; /*!< gpio open count, open it will increase 1, close it will decrease 1, 0 for close, >0 for open */
uint32_t direction; /*!< each bit direction of this GPIO, default all \ref GPIO_DIR_INPUT "input" for first open */
uint32_t method; /*!< int/poll method for each bit of GPIO, 0 for poll, 1 for interrupt, default all \ref DEV_POLL_METHOD "poll" for first open */
void * extra; /*!< a extra pointer to get hook to applications which should not used by bsp developer,
this should be NULL for first open and you can \ref DEV_GPIO_INFO_SET_EXTRA_OBJECT "set"
or \ref DEV_GPIO_INFO_GET_EXTRA_OBJECT "get" the extra information pointer */
} DEV_GPIO_INFO, * DEV_GPIO_INFO_PTR;
/** Set extra information pointer of gpio info */
#define DEV_GPIO_INFO_SET_EXTRA_OBJECT(gpio_info_ptr, extra_info) (gpio_info_ptr)->extra = (void *)(extra_info)
/** Get extra information pointer of gpio info */
#define DEV_GPIO_INFO_GET_EXTRA_OBJECT(gpio_info_ptr) ((gpio_info_ptr)->extra)
/** Method of all gpio bits set to poll */
#define DEV_GPIO_BITS_MTHD_POLL (0)
/** Method of all gpio bits set to interrupt */
#define DEV_GPIO_BITS_MTHD_INTERRUPT (0xFFFFFFFF)
/** Default method of all gpio bits should be poll for first open */
#define DEV_GPIO_BITS_MTHD_DEFAULT (DEV_GPIO_BITS_MTHD_POLL)
/**
* \brief gpio device interface definition
* \details define gpio device interface, like gpio information structure,
* fuctions to open/close/control gpio, write or read data via gpio
* \note all this details are implemented by user in user porting code
*/
typedef struct dev_gpio {
DEV_GPIO_INFO gpio_info; /*!< gpio device information */
int32_t (*gpio_open) (uint32_t dir); /*!< open gpio device with pre-defined gpio direction */
int32_t (*gpio_close) (void); /*!< close gpio device */
int32_t (*gpio_control) (uint32_t ctrl_cmd, void *param); /*!< control gpio device */
int32_t (*gpio_write) (uint32_t val, uint32_t mask); /*!< write gpio device with val, only write the masked bits */
int32_t (*gpio_read) (uint32_t *val, uint32_t mask); /*!< read gpio device val, only read the masked bits */
} DEV_GPIO, * DEV_GPIO_PTR;
/**
* \fn int32_t (* dev_gpio::gpio_open) (uint32_t dir)
* \details Open a gpio device with pre-defined io direction.
* \param[in] dir gpio direction for each bit
* \retval E_OK Open successfully without any issues
* \retval E_OPNED If device was opened before with different parameters,
* then just increase the \ref dev_gpio_info::opn_cnt "opn_cnt" and return \ref E_OPNED
* \retval E_OBJ Device object is not valid
* \retval E_PAR Parameter is not valid
* \retval E_NOSPT Open settings are not supported
*/
/**
* \fn int32_t (* dev_gpio::gpio_close) (void)
* \details Close an gpio device, just decrease the \ref dev_gpio_info::opn_cnt "opn_cnt",
* if \ref dev_gpio_info::opn_cnt "opn_cnt" equals 0, then close the device
* \retval E_OK Close successfully without any issues(including scenario that device is already closed)
* \retval E_OPNED Device is still opened, the device \ref dev_gpio_info::opn_cnt "opn_cnt" decreased by 1
* \retval E_OBJ Device object is not valid
*/
/**
* \fn int32_t (* dev_gpio::gpio_control) (uint32_t ctrl_cmd, void *param)
* \details Control an gpio device by \ref ctrl_cmd, with passed \ref param.
* you can control gpio device using predefined gpio control commands defined using \ref DEV_SET_SYSCMD
* (which must be implemented by bsp developer), such as \ref GPIO_CMD_SET_BIT_DIR_INPUT
* "change masked gpio direction to input", and \ref DEVICE_HAL_GPIO_CTRLCMD "more".
* And you can also control gpio device using your own specified commands defined using \ref DEV_SET_USRCMD,
* but these specified commands should be defined in your own gpio device driver implementation.
* \param[in] ctrl_cmd \ref DEVICE_HAL_GPIO_CTRLCMD "control command", to change or get some thing related to gpio
* \param[in,out] param parameters that maybe argument of the command, or return values of the command
* \retval E_OK Control device successfully
* \retval E_CLSED Device is not opened
* \retval E_OBJ Device object is not valid or not exists
* \retval E_PAR Parameter is not valid for current control command
* \retval E_SYS Control device failed, due to hardware issues
* \retval E_CTX Control device failed, due to different reasons like in transfer state
* \retval E_NOSPT Control command is not supported or not valid, such as interrupt is not supported
*/
/**
* \fn int32_t (* dev_gpio::gpio_write) (uint32_t val, uint32_t mask)
* \details Write gpio with \ref val, and only change the masked bits of gpio.
* \param[in] val the data that need to write to gpio
* \param[in] mask gpio bit mask
* \retval E_OK Write gpio with specified value successfully
* \retval E_OBJ Device object is not valid or not exists
* \retval E_PAR Parameter is not valid
*/
/**
* \fn int32_t (* dev_gpio::gpio_read) (uint32_t *val, uint32_t mask)
* \details Read the masked gpio value
* \param[out] val pointer to data need to read from gpio
* \param[in] mask gpio bit mask
* \retval E_OK Read gpio data successfully
* \retval E_OBJ Device object is not valid or not exists
* \retval E_PAR Parameter is not valid
*/
/** @} */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief get an \ref dev_gpio "gpio device" by gpio device id.
* For how to use gpio device hal refer to \ref dev_gpio "Functions in gpio device structure"
* \param[in] gpio_id id of gpio, defined by user
* \retval !NULL pointer to an \ref dev_gpio "gpio device structure"
* \retval NULL failed to find the gpio device by \ref gpio_id
* \note need to implemented by user in user code
*/
extern DEV_GPIO_PTR gpio_get_dev(int32_t gpio_id);
#ifdef __cplusplus
}
#endif
/** @} */
#endif /* _DEVICE_HAL_GPIO_H_ */