/* * Copyright (c) 2012, Freescale Semiconductor, 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: * * o Redistributions of source code must retain the above copyright notice, this list * of conditions and the following disclaimer. * * o 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. * * o Neither the name of Freescale Semiconductor, 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. */ #include "sdk.h" #include "usb/usb.h" //////////////////////////////////////////////////////////////////////////////// // Code //////////////////////////////////////////////////////////////////////////////// /*! * This function enables Vbus for the given USB port\n * The procedure to enable Vbus depends on both the Chip and board hardware\n * * @param port USB module to initialize */ void usbEnableVbus(usb_module_t * port) { switch (port->controllerID) { case OTG: case OTG1: #ifdef BOARD_SABRE_AI board_ioexpander_iomux_config(); // Vbus control is on I2C port expander C1 for the ARD board. max7310_set_gpio_output(2, 1, 1); #endif #if defined(BOARD_EVB) || defined(BOARD_SMART_DEVICE) gpio_set_gpio(GPIO_PORT3, 22); gpio_set_direction(GPIO_PORT3, 22, GPIO_GDIR_OUTPUT); gpio_set_level(GPIO_PORT3, 22, GPIO_HIGH_LEVEL); #endif break; case Host1: case OTG2: #ifdef BOARD_SABRE_AI board_ioexpander_iomux_config(); // Vbus control is on I2C port expander B7 for the ARD board. max7310_set_gpio_output(1, 7, 1); #endif #ifdef BOARD_EVB gpio_set_gpio(GPIO_PORT3, 31); gpio_set_direction(GPIO_PORT3, 31, GPIO_GDIR_OUTPUT); gpio_set_level(GPIO_PORT3, 31, GPIO_HIGH_LEVEL); #endif #ifdef BOARD_SMART_DEVICE gpio_set_gpio(GPIO_PORT3, 30); gpio_set_direction(GPIO_PORT3, 30, GPIO_GDIR_OUTPUT); gpio_set_level(GPIO_PORT3, 30, GPIO_HIGH_LEVEL); #endif break; case Host2: #ifdef BOARD_EVB #endif break; case Host3: // Nothing to be done here. break; default: // no such controller break; } } /*! * This function disables Vbus for the given USB port\n * The procedure to enable Vbus depends on both the Chip and board hardware\n * This implementation is for the MX6q Sabre-AI board\n * * @param port USB module to initialize */ void usbDisableVbus(usb_module_t * port) { switch (port->controllerID) { case OTG: #ifdef BOARD_SABRE_AI board_ioexpander_iomux_config(); max7310_set_gpio_output(2, 1, 0); #endif #if defined(BOARD_EVB) || defined(BOARD_SMART_DEVICE) gpio_set_level(GPIO_PORT3, 22, GPIO_LOW_LEVEL); #endif break; case Host1: #ifdef BOARD_SABRE_AI board_ioexpander_iomux_config(); max7310_set_gpio_output(1, 7, 0); #endif #ifdef BOARD_EVB gpio_set_level(GPIO_PORT3, 31, GPIO_LOW_LEVEL); #endif #ifdef BOARD_SMART_DEVICE gpio_set_level(GPIO_PORT3, 30, GPIO_LOW_LEVEL); #endif case Host2: #ifdef BOARD_EVB #endif break; case Host3: // Nothing to be done here. break; default: // no such controller break; } } /*! * USB HUB reset function */ void reset_usb_hub(void) { } //////////////////////////////////////////////////////////////////////////////// // EOF ////////////////////////////////////////////////////////////////////////////////