/**************************************************************************** * config/tm4c1294-launchpad/src/tm4c_bringup.c * * Copyright (C) 2015 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 #include "tiva_i2c.h" #include "tiva_pwm.h" #include "tiva_qencoder.h" #include "tm4c1294-launchpad.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ #ifdef CONFIG_DK_TM4C129X_TIMER # define HAVE_TIMER #endif #ifdef CONFIG_TM4C1294_LAUNCHPAD_PWM # define HAVE_PWM #endif #if defined(CONFIG_TIVA_QEI0) || defined(CONFIG_TIVA_QEI1) # define HAVE_QEI #endif #define PWM_PATH_FMT "/dev/pwm%d" #define PWM_PATH_FMTLEN (10) #define QEI_PATH_FMT "/dev/qei%d" #define QEI_PATH_FMTLEN (10) /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: tm4c_i2c_register * * Description: * Register one I2C drivers for the I2C tool. * ****************************************************************************/ #ifdef HAVE_I2CTOOL static void tm4c_i2c_register(int bus) { FAR struct i2c_master_s *i2c; int ret; i2c = tiva_i2cbus_initialize(bus); if (i2c == NULL) { _err("ERROR: Failed to get I2C%d interface\n", bus); } else { ret = i2c_register(i2c, bus); if (ret < 0) { _err("ERROR: Failed to register I2C%d driver: %d\n", bus, ret); tiva_i2cbus_uninitialize(i2c); } } } #endif /**************************************************************************** * Name: tm4c_i2ctool * * Description: * Register I2C drivers for the I2C tool. * ****************************************************************************/ #ifdef HAVE_I2CTOOL static void tm4c_i2ctool(void) { #ifdef CONFIG_TIVA_I2C0 tm4c_i2c_register(0); #endif #ifdef CONFIG_TIVA_I2C1 tm4c_i2c_register(1); #endif #ifdef CONFIG_TIVA_I2C2 tm4c_i2c_register(2); #endif #ifdef CONFIG_TIVA_I2C3 tm4c_i2c_register(3); #endif #ifdef CONFIG_TIVA_I2C4 tm4c_i2c_register(4); #endif #ifdef CONFIG_TIVA_I2C5 tm4c_i2c_register(5); #endif #ifdef CONFIG_TIVA_I2C6 tm4c_i2c_register(6); #endif #ifdef CONFIG_TIVA_I2C7 tm4c_i2c_register(7); #endif #ifdef CONFIG_TIVA_I2C8 tm4c_i2c_register(8); #endif #ifdef CONFIG_TIVA_I2C9 tm4c_i2c_register(9); #endif } #else # define tm4c_i2ctool() #endif /**************************************************************************** * Name: tm4c_pwm_register * * Description: * Register a PWM dev file with the upper_level PWM driver. * * Input Parameters: * channel - A number identifying the PWM channel use. * * Returned Value: * None. * ****************************************************************************/ #ifdef HAVE_PWM static void tm4c_pwm_register(int channel) { FAR struct pwm_lowerhalf_s *dev; char pwm_path[PWM_PATH_FMTLEN]; int ret; dev = tiva_pwm_initialize(channel); if (dev == NULL) { _err("ERROR: Failed to get PWM%d interface\n", channel); } else { snprintf(pwm_path, PWM_PATH_FMTLEN, PWM_PATH_FMT, channel); ret = pwm_register(pwm_path, dev); if (ret < 0) { _err("ERROR: Failed to register PWM%d driver: %d\n", channel, ret); } } } #endif /**************************************************************************** * Name: tm4c_pwm * * Description: * Register PWM drivers for the PWM tool. * ****************************************************************************/ #ifdef HAVE_PWM static void tm4c_pwm(void) { #ifdef CONFIG_TIVA_PWM0_CHAN0 tm4c_pwm_register(0); #endif #ifdef CONFIG_TIVA_PWM0_CHAN1 tm4c_pwm_register(1); #endif #ifdef CONFIG_TIVA_PWM0_CHAN2 tm4c_pwm_register(2); #endif #ifdef CONFIG_TIVA_PWM0_CHAN3 tm4c_pwm_register(3); #endif #ifdef CONFIG_TIVA_PWM0_CHAN4 tm4c_pwm_register(4); #endif #ifdef CONFIG_TIVA_PWM0_CHAN5 tm4c_pwm_register(5); #endif #ifdef CONFIG_TIVA_PWM0_CHAN6 tm4c_pwm_register(6); #endif #ifdef CONFIG_TIVA_PWM0_CHAN7 tm4c_pwm_register(7); #endif } #endif /**************************************************************************** * Name: tm4c_qei_register * * Description: * Register a QEI dev file with the upper_level QEI driver. * * Input Parameters: * id - A number identifying the QEI. * * Returned Value: * None. * ****************************************************************************/ #ifdef HAVE_QEI static void tm4c_qei_register(int id) { FAR struct qe_lowerhalf_s *dev; int ret; char qe_path[QEI_PATH_FMTLEN]; dev = tiva_qei_initialize(id); if (dev == NULL) { _err("ERROR: Failed to get QEI %d\n", id); } else { snprintf(qe_path, QEI_PATH_FMTLEN, QEI_PATH_FMT, id); ret = qe_register(qe_path, dev); if (ret < 0) { _err("ERROR: Failed to register QEI %d driver: %d\n", id, ret); } } } #endif /**************************************************************************** * Name: tm4c_qei * * Description: * Register QEI drivers for the QEI tool. * ****************************************************************************/ #ifdef HAVE_QEI static void tm4c_qei(void) { #ifdef CONFIG_TIVA_QEI0 tm4c_qei_register(0); #endif #ifdef CONFIG_TIVA_QEI1 tm4c_qei_register(1); #endif } #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: tm4c_bringup * * Description: * Bring up board features * ****************************************************************************/ int tm4c_bringup(void) { #ifdef HAVE_TIMER int ret; #endif /* Register I2C drivers on behalf of the I2C tool */ tm4c_i2ctool(); #ifdef HAVE_PWM /* Register PWM drivers */ tm4c_pwm(); #endif #ifdef HAVE_QEI /* Register QEI drivers */ tm4c_qei(); #endif #ifdef HAVE_TIMER /* Initialize the timer driver */ ret = tiva_timer_configure(); if (ret < 0) { _err("ERROR: Failed to initialize timer driver: %d\n", ret); } #endif return OK; }