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/**************************************************************************/
/*!
@file hal_lpc43xx.c
@author hathach (tinyusb.org)
@section LICENSE
Software License Agreement (BSD License)
Copyright (c) 2013, hathach (tinyusb.org)
All rights reserved.
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 of the copyright holders 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 ''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 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.
This file is part of the tinyusb stack.
*/
/**************************************************************************/
#include "common/common.h"
#include "hal.h"
#if MCU == MCU_LPC43XX
#include "lpc43xx_cgu.h"
#include "lpc43xx_scu.h"
enum {
LPC43XX_USBMODE_DEVICE = 2,
LPC43XX_USBMODE_HOST = 3
};
enum {
LPC43XX_USBMODE_VBUS_LOW = 0,
LPC43XX_USBMODE_VBUS_HIGH = 1
};
tusb_error_t hal_init(void)
{
//------------- USB0 Clock -------------//
#if TUSB_CFG_CONTROLLER0_MODE
CGU_EnableEntity(CGU_CLKSRC_PLL0, DISABLE); /* Disable PLL first */
ASSERT_INT( CGU_ERROR_SUCCESS, CGU_SetPLL0(), TUSB_ERROR_FAILED); /* the usb core require output clock = 480MHz */
CGU_EntityConnect(CGU_CLKSRC_XTAL_OSC, CGU_CLKSRC_PLL0);
CGU_EnableEntity(CGU_CLKSRC_PLL0, ENABLE); /* Enable PLL after all setting is done */
LPC_CREG->CREG0 &= ~(1<<5); /* Turn on the phy */
// reset controller & set role
#if TUSB_CFG_CONTROLLER0_MODE & TUSB_MODE_HOST
hcd_controller_reset(0); // TODO where to place prototype
LPC_USB0->USBMODE_H = LPC43XX_USBMODE_HOST | (LPC43XX_USBMODE_VBUS_HIGH << 5);
#else // TODO OTG
#error device mode is not supported
#endif
hal_interrupt_enable(0);
#endif
//------------- USB1 Clock, only use on-chip FS PHY -------------//
#if TUSB_CFG_CONTROLLER1_MODE
/* connect CLK_USB1 to 60 MHz clock */
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) */
//LPC_CREG->CREG0 &= ~(1<<5); /* Turn on the phy */
LPC_SCU->SFSUSB = (TUSB_CFG_CONTROLLER1_MODE & TUSB_MODE_HOST) ? 0x16 : 0x12; // enable USB1 with on-chip FS PHY
#if TUSB_CFG_CONTROLLER1_MODE & TUSB_MODE_HOST
hcd_controller_reset(1); // TODO where to place prototype
LPC_USB1->USBMODE_H = LPC43XX_USBMODE_HOST | (LPC43XX_USBMODE_VBUS_HIGH << 5);
#else
#endif
LPC_USB1->PORTSC1_D |= (1<<24); // TODO abtract, force port to fullspeed
hal_interrupt_enable(1);
#endif
return TUSB_ERROR_NONE;
}
void USB0_IRQHandler(void)
{
#if TUSB_CFG_CONTROLLER0_MODE
tusb_isr(0);
#endif
}
void USB1_IRQHandler(void)
{
#if TUSB_CFG_CONTROLLER1_MODE
tusb_isr(1);
#endif
}
#endif
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