252 lines
9.7 KiB
C
252 lines
9.7 KiB
C
/************************************************************************************
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* configs/cc3200/include/board.h
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* include/arch/board/board.h
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*
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* Copyright (C) 2010 Gregory Nutt. All rights reserved.
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* Authors: Gregory Nutt <gnutt@nuttx.org>
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* Jim Ewing <jim@droidifi.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __CONFIGS_CC3200_LAUNCHPAD_INCLUDE_BOARD_H
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#define __CONFIGS_CC3200_LAUNCHPAD_INCLUDE_BOARD_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* Clocking *************************************************************************/
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/* RCC settings. Crystal on-board the CC3200 LaunchPad include:
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*
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* 40MHz internal clock
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* 32.768kHz RTC clock
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*/
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#define SYSCON_RCC_XTAL SYSCON_RCC_XTAL40000KHZ /* On-board crystal is 40 MHz */
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#define XTAL_FREQUENCY 40000000
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/* Oscillator source is the main oscillator */
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#define SYSCON_RCC_OSCSRC SYSCON_RCC_OSCSRC_MOSC
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#define SYSCON_RCC2_OSCSRC SYSCON_RCC2_OSCSRC2_MOSC
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#define OSCSRC_FREQUENCY XTAL_FREQUENCY
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#define TIVA_SYSDIV 5
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#define SYSCLK_FREQUENCY 80000000 /* 80MHz */
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/* Other RCC settings:
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*
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* - Main and internal oscillators enabled.
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* - PLL and sys dividers not bypassed
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* - PLL not powered down
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* - No auto-clock gating reset
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*/
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#define TIVA_RCC_VALUE (SYSCON_RCC_OSCSRC | SYSCON_RCC_XTAL | \
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SYSCON_RCC_USESYSDIV | SYSCON_RCC_SYSDIV(TIVA_SYSDIV))
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/* RCC2 settings
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*
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* - PLL and sys dividers not bypassed.
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* - PLL not powered down
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* - Not using RCC2
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*
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* When SYSCON_RCC2_DIV400 is not selected, SYSDIV2 is the divisor-1.
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* When SYSCON_RCC2_DIV400 is selected, SYSDIV2 is the divisor-1)/2, plus
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* the LSB:
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*
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* SYSDIV2 SYSDIV2LSB DIVISOR
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* 0 N/A 2
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* 1 0 3
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* " 1 4
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* 2 0 5
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* " 1 6
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* etc.
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*/
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#if (TIVA_SYSDIV & 1) == 0
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# define TIVA_RCC2_VALUE (SYSCON_RCC2_OSCSRC | SYSCON_RCC2_SYSDIV2LSB | \
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SYSCON_RCC2_SYSDIV_DIV400(TIVA_SYSDIV) | \
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SYSCON_RCC2_DIV400 | SYSCON_RCC2_USERCC2)
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#else
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# define TIVA_RCC2_VALUE (SYSCON_RCC2_OSCSRC | SYSCON_RCC2_SYSDIV_DIV400(TIVA_SYSDIV) | \
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SYSCON_RCC2_DIV400 | SYSCON_RCC2_USERCC2)
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#endif
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/* LED definitions ******************************************************************/
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/* The CC3200 LaunchPad has three RGB LEDs.
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*
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* BOARD_LED_R -- Connected to PF1
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* BOARD_LED_G -- Connected to PF3
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* BOARD_LED_Y -- Connected to PF2
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*/
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/* LED index values for use with board_userled() */
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#define BOARD_LED_R 1
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#define BOARD_LED_G 2
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#define BOARD_LED_Y 3
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#define BOARD_NLEDS 3
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/* LED bits for use with board_userled_all() */
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#define BOARD_LED1_BIT (1 << BOARD_LED1)
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#define BOARD_LED2_BIT (1 << BOARD_LED2)
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/* If CONFIG_ARCH_LEDS is defined, then automated support for the LaunchPad LEDs
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* will be included in the build:
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*
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* OFF:
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* - OFF means that the OS is still initializing. Initialization is very fast so
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* if you see this at all, it probably means that the system is hanging up
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* somewhere in the initialization phases.
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*
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* GREEN
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* - This means that the OS completed initialization.
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*
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* BLUE:
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* - Whenever and interrupt or signal handler is entered, the BLUE LED is
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* illuminated and extinguished when the interrupt or signal handler exits.
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*
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* RED:
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* - If a recovered assertion occurs, the RED LED will be illuminated
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* briefly while the assertion is handled. You will probably never see this.
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*
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* Flashing RED:
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* - In the event of a fatal crash,
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* extinguished and the RED component will FLASH at a 2Hz rate.
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*/
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/* RED GREEN BLUE */
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#define LED_STARTED 0 /* OFF OFF OFF */
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#define LED_HEAPALLOCATE 0 /* OFF OFF OFF */
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#define LED_IRQSENABLED 0 /* OFF OFF OFF */
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#define LED_STACKCREATED 1 /* OFF ON OFF */
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#define LED_INIRQ 2 /* NC NC ON (momentary) */
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#define LED_SIGNAL 2 /* NC NC ON (momentary) */
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#define LED_ASSERTION 3 /* ON NC NC (momentary) */
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#define LED_PANIC 4 /* ON OFF OFF (flashing 2Hz) */
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/* LED definitions ******************************************************************/
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/* The CC3200 LaunchPad has two buttons:
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*
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* BOARD_SW1 -- Connected to PF4
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* BOARD_SW2 -- Connected to PF0
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*/
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#define BUTTON_SW1 0
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#define BUTTON_SW2 1
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#define BUTTON_SW3 2
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#define NUM_BUTTONS 3
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#define BUTTON_SW1_BIT (1 << BUTTON_SW1)
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#define BUTTON_SW2_BIT (1 << BUTTON_SW2)
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#define BUTTON_SW3_BIT (1 << BUTTON_SW3)
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/************************************************************************************
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* Public Function Prototypes
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************************************************************************************/
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#ifndef __ASSEMBLY__
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/************************************************************************************
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* Name: tiva_boardinitialize
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*
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* Description:
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* All Tiva architectures must provide the following entry point. This entry
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* point is called early in the initialization -- after all memory has been
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* configured and mapped but before any devices have been initialized.
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*
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************************************************************************************/
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void tiva_boardinitialize(void);
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/************************************************************************************
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* Name: up_buttoninit
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*
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* Description:
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* up_buttoninit() must be called to initialize button resources. After that,
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* up_buttons() may be called to collect the current state of all buttons or
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* up_irqbutton() may be called to register button interrupt handlers.
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*
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************************************************************************************/
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#ifdef CONFIG_ARCH_BUTTONS
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void up_buttoninit(void);
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/************************************************************************************
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* Name: up_buttons
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*
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* Description:
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* up_buttoninit() must be called to initialize button resources. After that,
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* up_buttons() may be called to collect the current state of all buttons.
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*
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* After up_buttoninit() has been called, up_buttons() may be called to collect
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* the state of all buttons. up_buttons() returns an 8-bit bit set with each bit
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* associated with a button. See the BOARD_BUTTON_*_BIT and BOARD_JOYSTICK_*_BIT
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* definitions above for the meaning of each bit.
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*
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************************************************************************************/
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uint8_t up_buttons(void);
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/************************************************************************************
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* Button support.
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*
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* Description:
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* up_buttoninit() must be called to initialize button resources. After that,
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* up_irqbutton() may be called to register button interrupt handlers.
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*
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* up_irqbutton() may be called to register an interrupt handler that will be called
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* when a button is depressed or released. The ID value is a button enumeration
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* value that uniquely identifies a button resource. See the BOARD_BUTTON_* and
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* BOARD_JOYSTICK_* definitions in above for the meaning of enumeration values
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* The previous interrupt handler address is returned (so that it may restored, if
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* so desired).
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*
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* Note that up_irqbutton() also enables button interrupts. Button interrupts
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* will remain enabled after the interrupt handler is attached. Interrupts may
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* be disabled (and detached) by calling up_irqbutton with irqhandler equal to
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* NULL.
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*
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************************************************************************************/
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#if defined(CONFIG_ARCH_IRQBUTTONS) && defined(CONFIG_TIVA_GPIO_IRQS)
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xcpt_t up_irqbutton(int id, xcpt_t irqhandler);
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#endif
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#endif /* CONFIG_ARCH_BUTTONS */
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#endif /* __ASSEMBLY__ */
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#endif /* __CONFIGS_CC3200_LAUNCHPAD_INCLUDE_BOARD_H */
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