114 lines
3.6 KiB
C
114 lines
3.6 KiB
C
/*
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* hal_lpc43xx.c
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*
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* Created on: Dec 4, 2012
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* Author: hathach
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*/
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/*
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* Software License Agreement (BSD License)
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* Copyright (c) 2013, hathach (tinyusb.org)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the tiny usb stack.
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*/
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#include "common/common.h"
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#include "hal.h"
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#if MCU == MCU_LPC43XX
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#include "lpc43xx_cgu.h"
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#include "lpc43xx_scu.h"
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enum {
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LPC43XX_USBMODE_DEVICE = 2,
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LPC43XX_USBMODE_HOST = 3
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};
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enum {
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LPC43XX_USBMODE_VBUS_LOW = 0,
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LPC43XX_USBMODE_VBUS_HIGH = 1
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};
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tusb_error_t hal_init(void)
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{
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//------------- USB0 Clock -------------//
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#if TUSB_CFG_CONTROLLER0_MODE
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CGU_EnableEntity(CGU_CLKSRC_PLL0, DISABLE); /* Disable PLL first */
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ASSERT_INT( CGU_ERROR_SUCCESS, CGU_SetPLL0(), TUSB_ERROR_FAILED); /* the usb core require output clock = 480MHz */
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CGU_EntityConnect(CGU_CLKSRC_XTAL_OSC, CGU_CLKSRC_PLL0);
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CGU_EnableEntity(CGU_CLKSRC_PLL0, ENABLE); /* Enable PLL after all setting is done */
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LPC_CREG->CREG0 &= ~(1<<5); /* Turn on the phy */
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// reset controller & set role
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#if TUSB_CFG_CONTROLLER0_MODE & TUSB_MODE_HOST
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hcd_controller_reset(0); // TODO where to place prototype
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LPC_USB0->USBMODE_H = LPC43XX_USBMODE_HOST | (LPC43XX_USBMODE_VBUS_HIGH << 5);
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#else // TODO OTG
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#error device mode is not supported
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#endif
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hal_interrupt_enable(0);
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#endif
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//------------- USB1 Clock, only use on-chip FS PHY -------------//
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#if TUSB_CFG_CONTROLLER1_MODE
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/* connect CLK_USB1 to 60 MHz clock */
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CGU_EntityConnect(CGU_CLKSRC_PLL1, CGU_BASE_USB1); /* FIXME Run base BASE_USB1_CLK clock from PLL1 (assume PLL1 is 60 MHz, no division required) */
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//LPC_CREG->CREG0 &= ~(1<<5); /* Turn on the phy */
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LPC_SCU->SFSUSB = (TUSB_CFG_CONTROLLER1_MODE & TUSB_MODE_HOST) ? 0x16 : 0x12; // enable USB1 with on-chip FS PHY
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#if TUSB_CFG_CONTROLLER1_MODE & TUSB_MODE_HOST
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hcd_controller_reset(1); // TODO where to place prototype
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LPC_USB1->USBMODE_H = LPC43XX_USBMODE_HOST | (LPC43XX_USBMODE_VBUS_HIGH << 5);
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#else
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#endif
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LPC_USB1->PORTSC1_D |= (1<<24); // TODO abtract, force port to fullspeed
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hal_interrupt_enable(1);
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#endif
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return TUSB_ERROR_NONE;
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}
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void USB0_IRQHandler(void)
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{
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#if TUSB_CFG_CONTROLLER0_MODE
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tusb_isr(0);
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#endif
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}
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void USB1_IRQHandler(void)
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{
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#if TUSB_CFG_CONTROLLER1_MODE
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tusb_isr(1);
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#endif
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}
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#endif
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