diff options
Diffstat (limited to 'tinyusb/hw/bsp/lpc54/family.c')
-rwxr-xr-x | tinyusb/hw/bsp/lpc54/family.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/lpc54/family.c b/tinyusb/hw/bsp/lpc54/family.c new file mode 100755 index 00000000..4789425a --- /dev/null +++ b/tinyusb/hw/bsp/lpc54/family.c @@ -0,0 +1,228 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2018, hathach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * This file is part of the TinyUSB stack. + */ + +#include "fsl_device_registers.h" +#include "fsl_gpio.h" +#include "fsl_power.h" +#include "fsl_iocon.h" +#include "fsl_usart.h" + +#include "bsp/board.h" +#include "board.h" + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM +//--------------------------------------------------------------------+ + +// IOCON pin mux +#define IOCON_PIO_DIGITAL_EN 0x80u // Enables digital function +#define IOCON_PIO_FUNC0 0x00u +#define IOCON_PIO_FUNC1 0x01u // Selects pin function 1 +#define IOCON_PIO_FUNC7 0x07u // Selects pin function 7 +#define IOCON_PIO_INPFILT_OFF 0x0100u // Input filter disabled +#define IOCON_PIO_INV_DI 0x00u // Input function is not inverted +#define IOCON_PIO_MODE_INACT 0x00u // No addition pin function +#define IOCON_PIO_MODE_PULLUP 0x10u +#define IOCON_PIO_OPENDRAIN_DI 0x00u // Open drain is disabled +#define IOCON_PIO_SLEW_STANDARD 0x00u // Standard mode, output slew rate control is enabled + +// Digital pin function n enabled +#define IOCON_PIO_DIG_FUNC0_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_INPFILT_OFF | IOCON_PIO_FUNC0) +#define IOCON_PIO_DIG_FUNC1_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_INPFILT_OFF | IOCON_PIO_FUNC1) +#define IOCON_PIO_DIG_FUNC4_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_INPFILT_OFF | IOCON_PIO_FUNC4) +#define IOCON_PIO_DIG_FUNC7_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_INPFILT_OFF | IOCON_PIO_FUNC7) + +//--------------------------------------------------------------------+ +// Forward USB interrupt events to TinyUSB IRQ Handler +//--------------------------------------------------------------------+ +void USB0_IRQHandler(void) +{ + tud_int_handler(0); +} + +void USB1_IRQHandler(void) +{ + tud_int_handler(1); +} + +/**************************************************************** +name: BOARD_BootClockFROHF96M +outputs: +- {id: SYSTICK_clock.outFreq, value: 96 MHz} +- {id: System_clock.outFreq, value: 96 MHz} +settings: +- {id: SYSCON.MAINCLKSELA.sel, value: SYSCON.fro_hf} +sources: +- {id: SYSCON.fro_hf.outFreq, value: 96 MHz} +******************************************************************/ +void BootClockFROHF96M(void) +{ + /*!< Set up the clock sources */ + /*!< Set up FRO */ + POWER_DisablePD(kPDRUNCFG_PD_FRO_EN); /*!< Ensure FRO is on */ + CLOCK_AttachClk(kFRO12M_to_MAIN_CLK); /*!< Switch to FRO 12MHz first to ensure we can change voltage without + accidentally being below the voltage for current speed */ + POWER_SetVoltageForFreq(96000000U); /*!< Set voltage for the one of the fastest clock outputs: System clock output */ + CLOCK_SetFLASHAccessCyclesForFreq(96000000U); /*!< Set FLASH wait states for core */ + + CLOCK_SetupFROClocking(96000000U); /*!< Set up high frequency FRO output to selected frequency */ + + /*!< Set up dividers */ + CLOCK_SetClkDiv(kCLOCK_DivAhbClk, 1U, false); /*!< Set AHBCLKDIV divider to value 1 */ + + /*!< Set up clock selectors - Attach clocks to the peripheries */ + CLOCK_AttachClk(kFRO_HF_to_MAIN_CLK); /*!< Switch MAIN_CLK to FRO_HF */ + + /*!< Set SystemCoreClock variable. */ + SystemCoreClock = 96000000U; +} + +void board_init(void) +{ + // Enable IOCON clock + CLOCK_EnableClock(kCLOCK_Iocon); + + // Init 96 MHz clock + BootClockFROHF96M(); + + // 1ms tick timer + SysTick_Config(SystemCoreClock / 1000); + +#if CFG_TUSB_OS == OPT_OS_FREERTOS + // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher ) + NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY ); +#endif + + // Init all GPIO ports 54114 only has 2 ports. + GPIO_PortInit(GPIO, LED_PORT); + GPIO_PortInit(GPIO, BUTTON_PORT); + + // LED + IOCON_PinMuxSet(IOCON, LED_PORT, LED_PIN, IOCON_PIO_DIG_FUNC0_EN); + gpio_pin_config_t const led_config = { kGPIO_DigitalOutput, 0}; + GPIO_PinInit(GPIO, LED_PORT, LED_PIN, &led_config); + + board_led_write(0); + + // Button + IOCON_PinMuxSet(IOCON, BUTTON_PORT, BUTTON_PIN, IOCON_PIO_DIG_FUNC0_EN | IOCON_PIO_MODE_PULLUP); + gpio_pin_config_t const button_config = { kGPIO_DigitalInput, 0}; + GPIO_PinInit(GPIO, BUTTON_PORT, BUTTON_PIN, &button_config); + +#ifdef UART_DEV + // UART + IOCON_PinMuxSet(IOCON, UART_RX_PINMUX); + IOCON_PinMuxSet(IOCON, UART_TX_PINMUX); + + // Enable UART when debug log is on + CLOCK_AttachClk(kFRO12M_to_FLEXCOMM0); + usart_config_t uart_config; + USART_GetDefaultConfig(&uart_config); + uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE; + uart_config.enableTx = true; + uart_config.enableRx = true; + USART_Init(UART_DEV, &uart_config, 12000000); +#endif + + // USB + IOCON_PinMuxSet(IOCON, USB0_VBUS_PINMUX); + +#if defined(FSL_FEATURE_SOC_USBHSD_COUNT) && FSL_FEATURE_SOC_USBHSD_COUNT + // LPC546xx and LPC540xx has OTG 1 FS + 1 HS rhports + + #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE + // Port0 is Full Speed + POWER_DisablePD(kPDRUNCFG_PD_USB0_PHY); /*< Turn on USB Phy */ + CLOCK_SetClkDiv(kCLOCK_DivUsb0Clk, 1, false); + CLOCK_AttachClk(kFRO_HF_to_USB0_CLK); + + /*According to reference mannual, device mode setting has to be set by access usb host register */ + CLOCK_EnableClock(kCLOCK_Usbhsl0); /* enable usb0 host clock */ + USBFSH->PORTMODE |= USBFSH_PORTMODE_DEV_ENABLE_MASK; + CLOCK_DisableClock(kCLOCK_Usbhsl0); /* disable usb0 host clock */ + + CLOCK_EnableUsbfs0DeviceClock(kCLOCK_UsbSrcFro, CLOCK_GetFroHfFreq()); + #endif + + #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE + // Port1 is High Speed + POWER_DisablePD(kPDRUNCFG_PD_USB1_PHY); + + /*According to reference mannual, device mode setting has to be set by access usb host register */ + CLOCK_EnableClock(kCLOCK_Usbh1); /* enable usb1 host clock */ + USBHSH->PORTMODE |= USBHSH_PORTMODE_DEV_ENABLE_MASK; + CLOCK_DisableClock(kCLOCK_Usbh1); /* enable usb1 host clock */ + + CLOCK_EnableUsbhs0DeviceClock(kCLOCK_UsbSrcUsbPll, 0U); + #endif + +#else + // LPC5411x series only has full speed device + + POWER_DisablePD(kPDRUNCFG_PD_USB0_PHY); // Turn on USB Phy + CLOCK_EnableUsbfs0Clock(kCLOCK_UsbSrcFro, CLOCK_GetFreq(kCLOCK_FroHf)); /* enable USB IP clock */ +#endif +} + +//--------------------------------------------------------------------+ +// Board porting API +//--------------------------------------------------------------------+ + +void board_led_write(bool state) +{ + GPIO_PinWrite(GPIO, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON)); +} + +uint32_t board_button_read(void) +{ + // active low + return BUTTON_STATE_ACTIVE == GPIO_PinRead(GPIO, BUTTON_PORT, BUTTON_PIN); +} + +int board_uart_read(uint8_t* buf, int len) +{ + (void) buf; (void) len; + return 0; +} + +int board_uart_write(void const * buf, int len) +{ + USART_WriteBlocking(UART_DEV, (uint8_t *)buf, len); + return 0; +} + +#if CFG_TUSB_OS == OPT_OS_NONE +volatile uint32_t system_ticks = 0; +void SysTick_Handler(void) +{ + system_ticks++; +} + +uint32_t board_millis(void) +{ + return system_ticks; +} +#endif |