254 lines
7.8 KiB
C
254 lines
7.8 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "chip.h"
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#include "../board.h"
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//--------------------------------------------------------------------+
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// USB Interrupt Handler
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//--------------------------------------------------------------------+
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void USB0_IRQHandler(void)
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{
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
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tuh_int_handler(0);
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#endif
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
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tud_int_handler(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 CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
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tuh_int_handler(1);
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#endif
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#if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE
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tud_int_handler(1);
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#endif
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}
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM DECLARATION
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//--------------------------------------------------------------------+
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// PD_10
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#define LED_PORT 6
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#define LED_PIN 24
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// P4_0
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#define BUTTON_PORT 2
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#define BUTTON_PIN 0
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#define UART_DEV LPC_USART3
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#define UART_PORT 0x02
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#define UART_PIN_TX 3
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#define UART_PIN_RX 4
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/* System configuration variables used by chip driver */
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const uint32_t OscRateIn = 12000000;
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const uint32_t ExtRateIn = 0;
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static const PINMUX_GRP_T pinmuxing[] =
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{
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// LEDs
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{ 0xD, 10, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4) },
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{ 0xD, 11, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4 | SCU_MODE_PULLDOWN) },
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{ 0xD, 12, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4 | SCU_MODE_PULLDOWN) },
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{ 0xD, 13, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4 | SCU_MODE_PULLDOWN) },
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{ 0xD, 14, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC4 | SCU_MODE_PULLDOWN) },
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{ 0x9, 0, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0 | SCU_MODE_PULLDOWN) },
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{ 0x9, 1, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0 | SCU_MODE_PULLDOWN) },
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{ 0x9, 2, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0 | SCU_MODE_PULLDOWN) },
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// Button
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{ 0x4, 0, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0 | SCU_MODE_PULLUP) },
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// UART
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{ UART_PORT, UART_PIN_TX, SCU_MODE_PULLDOWN | SCU_MODE_FUNC2 },
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{ UART_PORT, UART_PIN_RX, SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC2 },
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// USB0
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{ 0x6, 3, SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_FUNC1 }, // P6_3 USB0_PWR_EN, USB0 VBus function
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{ 0x9, 5, SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_FUNC2 }, // P9_5 USB1_VBUS_EN, USB1 VBus function
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{ 0x2, 5, SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC2 }, // P2_5 USB1_VBUS, MUST CONFIGURE THIS SIGNAL FOR USB1 NORMAL OPERATION
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};
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/* Pin clock mux values, re-used structure, value in first index is meaningless */
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static const PINMUX_GRP_T pinclockmuxing[] =
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{
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{ 0, 0, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_HIGHSPEEDSLEW_EN | SCU_MODE_FUNC0)},
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{ 0, 1, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_HIGHSPEEDSLEW_EN | SCU_MODE_FUNC0)},
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{ 0, 2, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_HIGHSPEEDSLEW_EN | SCU_MODE_FUNC0)},
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{ 0, 3, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_HIGHSPEEDSLEW_EN | SCU_MODE_FUNC0)},
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};
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// Invoked by startup code
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void SystemInit(void)
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{
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#ifdef __USE_LPCOPEN
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extern void (* const g_pfnVectors[])(void);
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unsigned int *pSCB_VTOR = (unsigned int *) 0xE000ED08;
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*pSCB_VTOR = (unsigned int) g_pfnVectors;
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#endif
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/* Setup system level pin muxing */
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Chip_SCU_SetPinMuxing(pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));
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/* Clock pins only, group field not used */
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for (uint32_t i = 0; i < (sizeof(pinclockmuxing) / sizeof(pinclockmuxing[0])); i++)
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{
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Chip_SCU_ClockPinMuxSet(pinclockmuxing[i].pinnum, pinclockmuxing[i].modefunc);
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}
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Chip_SetupXtalClocking();
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}
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void board_init(void)
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{
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SystemCoreClockUpdate();
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#if CFG_TUSB_OS == OPT_OS_NONE
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// 1ms tick timer
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SysTick_Config(SystemCoreClock / 1000);
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#elif CFG_TUSB_OS == OPT_OS_FREERTOS
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// If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
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//NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
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#endif
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Chip_GPIO_Init(LPC_GPIO_PORT);
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// LED
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Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, LED_PORT, LED_PIN);
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// Button
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Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN);
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//------------- UART -------------//
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Chip_UART_Init(UART_DEV);
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Chip_UART_SetBaud(UART_DEV, CFG_BOARD_UART_BAUDRATE);
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Chip_UART_ConfigData(UART_DEV, UART_LCR_WLEN8 | UART_LCR_SBS_1BIT | UART_LCR_PARITY_DIS);
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Chip_UART_TXEnable(UART_DEV);
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//------------- USB -------------//
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enum {
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USBMODE_DEVICE = 2,
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USBMODE_HOST = 3
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};
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enum {
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USBMODE_VBUS_LOW = 0,
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USBMODE_VBUS_HIGH = 1
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};
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// USB0
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#if CFG_TUSB_RHPORT0_MODE
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Chip_USB0_Init();
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// Host/Device mode can only be set right after controller reset
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LPC_USB0->USBCMD_D |= 0x02;
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while( LPC_USB0->USBCMD_D & 0x02 ) {}
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// Set mode
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
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LPC_USB0->USBMODE_H = USBMODE_HOST | (USBMODE_VBUS_HIGH << 5);
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LPC_USB0->PORTSC1_H |= (1<<24); // FIXME force full speed for debugging
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#else // TODO OTG
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LPC_USB0->USBMODE_D = USBMODE_DEVICE;
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LPC_USB0->OTGSC = (1<<3) | (1<<0) /*| (1<<16)| (1<<24)| (1<<25)| (1<<26)| (1<<27)| (1<<28)| (1<<29)| (1<<30)*/;
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#endif
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#endif
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// USB1
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#if CFG_TUSB_RHPORT1_MODE
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Chip_USB1_Init();
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// // Reset controller
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// LPC_USB1->USBCMD_D |= 0x02;
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// while( LPC_USB1->USBCMD_D & 0x02 ) {}
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//
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// // Set mode
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// #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
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// LPC_USB1->USBMODE_H = USBMODE_HOST | (USBMODE_VBUS_HIGH << 5);
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// #else // TODO OTG
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// LPC_USB1->USBMODE_D = USBMODE_DEVICE;
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// #endif
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//
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// // USB1 as fullspeed
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// LPC_USB1->PORTSC1_D |= (1<<24);
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#endif
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}
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//--------------------------------------------------------------------+
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// Board porting API
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//--------------------------------------------------------------------+
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void board_led_write(bool state)
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{
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Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state);
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}
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uint32_t board_button_read(void)
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{
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// active low
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return Chip_GPIO_GetPinState(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN) ? 0 : 1;
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}
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int board_uart_read(uint8_t* buf, int len)
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{
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//return UART_ReceiveByte(BOARD_UART_PORT);
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(void) buf; (void) len;
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return 0;
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}
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int board_uart_write(void const * buf, int len)
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{
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uint8_t const* buf8 = (uint8_t const*) buf;
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for(int i=0; i<len; i++)
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{
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while ((Chip_UART_ReadLineStatus(UART_DEV) & UART_LSR_THRE) == 0) {}
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Chip_UART_SendByte(UART_DEV, buf8[i]);
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}
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return len;
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}
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#if CFG_TUSB_OS == OPT_OS_NONE
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volatile uint32_t system_ticks = 0;
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void SysTick_Handler (void)
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{
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system_ticks++;
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}
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uint32_t board_millis(void)
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{
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return system_ticks;
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}
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#endif
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