pinmux: Add API for pinmux driver
This provides the API to manipulte the pin muxing, where a single pin may provide different functions depending on settings. [DL: changed commit message.] Change-Id: Ifd161137c062dff184024b5aa34737604911d09c Signed-off-by: Dan Kalowsky <daniel.kalowsky@intel.com> Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Dan Kalowsky
Anas Nashif
parent
f84b8b3707
commit
2d6ba51742
4 changed files with 217 additions and 0 deletions
|
|
@ -57,4 +57,6 @@ source "drivers/i2c/Kconfig"
|
||||||
|
|
||||||
source "drivers/pwm/Kconfig"
|
source "drivers/pwm/Kconfig"
|
||||||
|
|
||||||
|
source "drivers/pinmux/Kconfig"
|
||||||
|
|
||||||
endmenu
|
endmenu
|
||||||
|
|
|
||||||
89
drivers/pinmux/Kconfig
Normal file
89
drivers/pinmux/Kconfig
Normal file
|
|
@ -0,0 +1,89 @@
|
||||||
|
# Kconfig - Pinmux configuration options
|
||||||
|
|
||||||
|
#
|
||||||
|
# Copyright (c) 2015 Intel Corporation
|
||||||
|
#
|
||||||
|
# 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 Intel Corporation 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.
|
||||||
|
#
|
||||||
|
|
||||||
|
#
|
||||||
|
# PinMux options
|
||||||
|
#
|
||||||
|
menuconfig PINMUX
|
||||||
|
bool "Enable platform pinmux driver"
|
||||||
|
default n
|
||||||
|
|
||||||
|
config PINMUX_BASE
|
||||||
|
hex "Base Address"
|
||||||
|
depends on PINMUX
|
||||||
|
help
|
||||||
|
On platforms where there is a base pinmux register, set this value to
|
||||||
|
enable the driver to directly access the memory.
|
||||||
|
|
||||||
|
config PINMUX_NUM_PINS
|
||||||
|
int "Number of Pins to configure"
|
||||||
|
depends on PINMUX
|
||||||
|
help
|
||||||
|
Select the number of pins for the pinmux to operate on.
|
||||||
|
|
||||||
|
config PINMUX_DEV
|
||||||
|
bool "Configure pinmux for early board testing"
|
||||||
|
depends on PINMUX
|
||||||
|
default n
|
||||||
|
help
|
||||||
|
Enables the use of the pinmux_set and pinmux_get functions for early
|
||||||
|
prototyping on new hardware. WARNING: When using these options, it
|
||||||
|
is possible to permanently damage the hardware.
|
||||||
|
|
||||||
|
config PINMUX_GALILEO_EXP0_NAME
|
||||||
|
string "Name of the GPIO expander 0"
|
||||||
|
depends on PINMUX && PLATFORM_GALILEO
|
||||||
|
default "EXP0"
|
||||||
|
help
|
||||||
|
The name of the GPIO expander labelled as EXP0 in the schematic.
|
||||||
|
|
||||||
|
config PINMUX_GALILEO_EXP1_NAME
|
||||||
|
string "Name of the GPIO expander 1"
|
||||||
|
depends on PINMUX && PLATFORM_GALILEO
|
||||||
|
default "EXP1"
|
||||||
|
help
|
||||||
|
The name of the GPIO expander labelled as EXP1 in the schematic.
|
||||||
|
|
||||||
|
config PINMUX_GALILEO_EXP2_NAME
|
||||||
|
string "Name of the GPIO expander 2"
|
||||||
|
depends on PINMUX && PLATFORM_GALILEO
|
||||||
|
default "EXP2"
|
||||||
|
help
|
||||||
|
The name of the GPIO expander labelled as EXP2 in the schematic.
|
||||||
|
|
||||||
|
config PINMUX_GALILEO_PWM0_NAME
|
||||||
|
string "Name of the PWM LED expander 0"
|
||||||
|
depends on PINMUX && PLATFORM_GALILEO
|
||||||
|
default "PWM0"
|
||||||
|
help
|
||||||
|
The name of the PWM LED expander labelled as PWM0 in the schematic.
|
||||||
|
|
||||||
51
drivers/pinmux/pinmux.h
Normal file
51
drivers/pinmux/pinmux.h
Normal file
|
|
@ -0,0 +1,51 @@
|
||||||
|
/* pinmux.h - the private pinmux driver header */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2015 Intel Corporation
|
||||||
|
*
|
||||||
|
* 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 Intel Corporation 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.
|
||||||
|
*/
|
||||||
|
#ifndef __DRIVERS_PINMUX_H
|
||||||
|
#define __DRIVERS_PINMUX_H
|
||||||
|
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <device.h>
|
||||||
|
|
||||||
|
struct pin_config {
|
||||||
|
uint8_t pin_num;
|
||||||
|
uint8_t mode;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct pinmux_config {
|
||||||
|
uint32_t base_address;
|
||||||
|
};
|
||||||
|
|
||||||
|
extern int pinmux_initialize(struct device *port);
|
||||||
|
extern int pinmux_galileo_initialize(struct device *port);
|
||||||
|
|
||||||
|
#endif /* __DRIVERS_PINMUX_H */
|
||||||
75
include/pinmux.h
Normal file
75
include/pinmux.h
Normal file
|
|
@ -0,0 +1,75 @@
|
||||||
|
/* pinmux.h - the private pinmux driver header */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2015 Intel Corporation
|
||||||
|
*
|
||||||
|
* 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 Intel Corporation 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.
|
||||||
|
*/
|
||||||
|
#ifndef __INCLUDE_PINMUX_H
|
||||||
|
#define __INCLUDE_PINMUX_H
|
||||||
|
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <device.h>
|
||||||
|
|
||||||
|
#define PINMUX_NAME "pinmux"
|
||||||
|
|
||||||
|
#define PINMUX_FUNC_A 0
|
||||||
|
#define PINMUX_FUNC_B 1
|
||||||
|
#define PINMUX_FUNC_C 2
|
||||||
|
#define PINMUX_FUNC_D 3
|
||||||
|
|
||||||
|
typedef uint32_t (*pmux_set)(struct device *dev, uint32_t pin, uint8_t func);
|
||||||
|
typedef uint32_t (*pmux_get)(struct device *dev, uint32_t pin, uint8_t *func);
|
||||||
|
|
||||||
|
struct pinmux_driver_api {
|
||||||
|
pmux_set set;
|
||||||
|
pmux_get get;
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
static inline uint32_t pinmux_set_pin(struct device *dev,
|
||||||
|
uint32_t pin,
|
||||||
|
uint8_t func)
|
||||||
|
{
|
||||||
|
struct pinmux_driver_api *api;
|
||||||
|
|
||||||
|
api = (struct pinmux_driver_api *) dev->driver_api;
|
||||||
|
return api->set(dev, pin, func);
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline uint32_t pinmux_get_pin(struct device *dev,
|
||||||
|
uint32_t pin,
|
||||||
|
uint8_t *func)
|
||||||
|
{
|
||||||
|
struct pinmux_driver_api *api;
|
||||||
|
|
||||||
|
api = (struct pinmux_driver_api *) dev->driver_api;
|
||||||
|
return api->get(dev, pin, func);
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif /* __INCLUDE_PINMUX_H */
|
||||||
Loading…
Add table
Add a link
Reference in a new issue