diff options
Diffstat (limited to 'tinyusb/hw/bsp/imxrt/family.c')
-rwxr-xr-x | tinyusb/hw/bsp/imxrt/family.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/imxrt/family.c b/tinyusb/hw/bsp/imxrt/family.c new file mode 100755 index 00000000..77a224a5 --- /dev/null +++ b/tinyusb/hw/bsp/imxrt/family.c @@ -0,0 +1,190 @@ +/* + * 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 "bsp/board.h" +#include "board.h" +#include "fsl_device_registers.h" +#include "fsl_gpio.h" +#include "fsl_iomuxc.h" +#include "fsl_clock.h" +#include "fsl_lpuart.h" + +#include "clock_config.h" + +// needed by fsl_flexspi_nor_boot +const uint8_t dcd_data[] = { 0x00 }; + +void board_init(void) +{ + // Init clock + BOARD_BootClockRUN(); + SystemCoreClockUpdate(); + + // Enable IOCON clock + CLOCK_EnableClock(kCLOCK_Iomuxc); + +#if CFG_TUSB_OS == OPT_OS_NONE + // 1ms tick timer + SysTick_Config(SystemCoreClock / 1000); +#elif 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 + + // LED + IOMUXC_SetPinMux( LED_PINMUX, 0U); + IOMUXC_SetPinConfig( LED_PINMUX, 0x10B0U); + + gpio_pin_config_t led_config = { kGPIO_DigitalOutput, 0, kGPIO_NoIntmode }; + GPIO_PinInit(LED_PORT, LED_PIN, &led_config); + board_led_write(true); + + // Button + IOMUXC_SetPinMux( BUTTON_PINMUX, 0U); + IOMUXC_SetPinConfig(BUTTON_PINMUX, 0x01B0A0U); + gpio_pin_config_t button_config = { kGPIO_DigitalInput, 0, kGPIO_IntRisingEdge, }; + GPIO_PinInit(BUTTON_PORT, BUTTON_PIN, &button_config); + + // UART + IOMUXC_SetPinMux( UART_TX_PINMUX, 0U); + IOMUXC_SetPinMux( UART_RX_PINMUX, 0U); + IOMUXC_SetPinConfig( UART_TX_PINMUX, 0x10B0u); + IOMUXC_SetPinConfig( UART_RX_PINMUX, 0x10B0u); + + lpuart_config_t uart_config; + LPUART_GetDefaultConfig(&uart_config); + uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE; + uart_config.enableTx = true; + uart_config.enableRx = true; + + uint32_t freq; + if (CLOCK_GetMux(kCLOCK_UartMux) == 0) /* PLL3 div6 80M */ + { + freq = (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U); + } + else + { + freq = CLOCK_GetOscFreq() / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U); + } + + LPUART_Init(UART_PORT, &uart_config, freq); + + //------------- USB0 -------------// + + // Clock + CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U); + CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U); + + // USB1 +// CLOCK_EnableUsbhs1PhyPllClock(kCLOCK_Usbphy480M, 480000000U); +// CLOCK_EnableUsbhs1Clock(kCLOCK_Usb480M, 480000000U); + + USBPHY_Type* usb_phy; + + // RT105x RT106x have dual USB controller. TODO support USB2 +#ifdef USBPHY1 + usb_phy = USBPHY1; +#else + usb_phy = USBPHY; +#endif + + // Enable PHY support for Low speed device + LS via FS Hub + usb_phy->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK | USBPHY_CTRL_SET_ENUTMILEVEL3_MASK; + + // Enable all power for normal operation + usb_phy->PWD = 0; + + // TX Timing + uint32_t phytx = usb_phy->TX; + phytx &= ~(USBPHY_TX_D_CAL_MASK | USBPHY_TX_TXCAL45DM_MASK | USBPHY_TX_TXCAL45DP_MASK); + phytx |= USBPHY_TX_D_CAL(0x0C) | USBPHY_TX_TXCAL45DP(0x06) | USBPHY_TX_TXCAL45DM(0x06); + usb_phy->TX = phytx; +} + +//--------------------------------------------------------------------+ +// USB Interrupt Handler +//--------------------------------------------------------------------+ +void USB_OTG1_IRQHandler(void) +{ + #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST + tuh_int_handler(0); + #endif + + #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE + tud_int_handler(0); + #endif +} + +void USB_OTG2_IRQHandler(void) +{ + #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST + tuh_int_handler(1); + #endif + + #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE + tud_int_handler(1); + #endif +} + +//--------------------------------------------------------------------+ +// Board porting API +//--------------------------------------------------------------------+ + +void board_led_write(bool state) +{ + GPIO_PinWrite(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(BUTTON_PORT, BUTTON_PIN); +} + +int board_uart_read(uint8_t* buf, int len) +{ + LPUART_ReadBlocking(UART_PORT, buf, len); + return len; +} + +int board_uart_write(void const * buf, int len) +{ + LPUART_WriteBlocking(UART_PORT, (uint8_t*)buf, len); + return len; +} + +#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 |