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incubator-nuttx/include/sys/boardctl.h

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/****************************************************************************
* include/sys/boardctl.h
*
* Copyright (C) 2015 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 __INCLUDE_SYS_BOARDCTL_H
#define __INCLUDE_SYS_BOARDCTL_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <nuttx/fs/ioctl.h>
#ifdef CONFIG_LIB_BOARDCTL
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Common commands
*
* CMD: BOARDIOC_INIT
* DESCRIPTION: Perform one-time application initialization.
* ARG: None
* CONFIGURATION: CONFIG_LIB_BOARDCTL
* DEPENDENCIES: Board logic must provide board_app_initialization
*
* CMD: BOARDIOC_POWEROFF
* DESCRIPTION: Power off the board
* ARG: Integer value providing power off status information
* CONFIGURATION: CONFIG_BOARDCTL_POWEROFF
* DEPENDENCIES: Board logic must provide board_power_off
*
* CMD: BOARDIOC_RESET
* DESCRIPTION: Reset the board
* ARG: Integer value providing power off status information
* CONFIGURATION: CONFIG_BOARDCTL_RESET
* DEPENDENCIES: Board logic must provide board_reset
*
* CMD: BOARDIOC_SYMTAB
* DESCRIPTION: Select a symbol table
* ARG: A pointer to an instance of struct boardioc_symtab_s
* CONFIGURATION: CONFIG_BOARDCTL_SYMTAB
* DEPENDENCIES: None
*
* CMD: BOARDIOC_TSCTEST_SETUP
* DESCRIPTION: Touchscreen controller test configuration
* ARG: Touch controller device minor number
* CONFIGURATION: CONFIG_LIB_BOARDCTL && CONFIG_BOARDCTL_TSCTEST
* DEPENDENCIES: Board logic must provide board_tsc_setup()
*
* CMD: BOARDIOC_TSCTEST_TEARDOWN
* DESCRIPTION: Touchscreen controller test configuration
* ARG: None
* CONFIGURATION: CONFIG_LIB_BOARDCTL && CONFIG_BOARDCTL_TSCTEST
* DEPENDENCIES: Board logic must provide board_tsc_teardown()
*
* CMD: BOARDIOC_ADCTEST_SETUP
* DESCRIPTION: ADC controller test configuration
* ARG: None
* CONFIGURATION: CONFIG_LIB_BOARDCTL && CONFIG_BOARDCTL_ADCTEST
* DEPENDENCIES: Board logic must provide board_adc_setup()
*
* CMD: BOARDIOC_PWMTEST_SETUP
* DESCRIPTION: PWM controller test configuration
* ARG: None
* CONFIGURATION: CONFIG_LIB_BOARDCTL && CONFIG_BOARDCTL_PWMTEST
* DEPENDENCIES: Board logic must provide board_pwm_setup()
*
* CMD: BOARDIOC_CAN_INITIALIZE
* DESCRIPTION: CAN device initialization
* ARG: None
* CONFIGURATION: CONFIG_LIB_BOARDCTL && CONFIG_BOARDCTL_CANINIT
* DEPENDENCIES: Board logic must provide board_can_initialize()
*
* CMD: BOARDIOC_GRAPHICS_SETUP
* DESCRIPTION: Configure graphics that require special initialization
* procedures
* ARG: A pointer to an instance of struct boardioc_graphics_s
* CONFIGURATION: CONFIG_LIB_BOARDCTL && CONFIG_BOARDCTL_GRAPHICS
* DEPENDENCIES: Board logic must provide board_adc_setup()
*/
#define BOARDIOC_INIT _BOARDIOC(0x0001)
#define BOARDIOC_POWEROFF _BOARDIOC(0x0002)
#define BOARDIOC_RESET _BOARDIOC(0x0003)
#define BOARDIOC_SYMTAB _BOARDIOC(0x0004)
#define BOARDIOC_TSCTEST_SETUP _BOARDIOC(0x0005)
#define BOARDIOC_TSCTEST_TEARDOWN _BOARDIOC(0x0006)
#define BOARDIOC_ADCTEST_SETUP _BOARDIOC(0x0007)
#define BOARDIOC_PWMTEST_SETUP _BOARDIOC(0x0008)
#define BOARDIOC_CAN_INITIALIZE _BOARDIOC(0x0009)
#define BOARDIOC_GRAPHICS_SETUP _BOARDIOC(0x000a)
/* If CONFIG_BOARDCTL_IOCTL=y, then boad-specific commands will be support.
* In this case, all commands not recognized by boardctl() will be forwarded
* to the board-provided board_ioctl() function.
*
* User defined board commands may begin with this value:
*/
#define BOARDIOC_USER _BOARDIOC(0x000b)
/****************************************************************************
* Public Type Definitions
****************************************************************************/
/* Structure used to pass arguments and get returned values from the
* BOARDIOC_GRAPHICS_SETUP command.
*/
#ifdef CONFIG_NX_LCDDRIVER
struct lcd_dev_s; /* Forward reference */
#else
struct fb_vtable_s; /* Forward reference */
#endif
struct boardioc_graphics_s
{
int devno; /* IN: Graphics device number */
#ifdef CONFIG_NX_LCDDRIVER
FAR struct lcd_dev_s *dev; /* OUT: LCD driver instance */
#else
FAR struct fb_vtable_s *dev; /* OUT: Framebuffer driver instance */
#endif
};
/* In order to full describe a symbol table, a vector containing the address
* of the symbol table and the number of elements in the symbol table is
* required.
*/
struct symtab_s; /* Forward reference */
struct boardioc_symtab_s
{
FAR struct symtab_s *symtab;
int nsymbols;
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: boardctl
*
* Description:
* In a small embedded system, there will typically be a much greater
* interaction between application and low-level board features. The
* canonically correct to implement such interactions is by implementing a
* character driver and performing the interactions via low level ioctl
* calls. This, however, may not be practical in many cases and will lead
* to "correct" but awkward implementations.
*
* boardctl() is non-standard OS interface to alleviate the problem. It
* basically circumvents the normal device driver ioctl interlace and allows
* the application to perform direct IOCTL-like calls to the board-specific
* logic. It is especially useful for setting up board operational and
* test configurations.
*
* Input Parameters:
* cmd - Identifies the board command to be executed
* arg - The argument that accompanies the command. The nature of the
* argument is determined by the specific command.
*
* Returned Value:
* On success zero (OK) is returned; -1 (ERROR) is returned on failure
* with the errno variable to to indicate the nature of the failure.
*
****************************************************************************/
int boardctl(unsigned int cmd, uintptr_t arg);
#endif /* CONFIG_LIB_BOARDCTL */
#endif /* __INCLUDE_SYS_BOARDCTL_H */
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