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espressif_tinyusb/hw/bsp/lpc55/family.c

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/*
* 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_power.h"
#include "fsl_iocon.h"
#include "fsl_usart.h"
#include "fsl_sctimer.h"
#include "sct_neopixel.h"
#ifdef BOARD_TUD_RHPORT
#define PORT_SUPPORT_DEVICE(_n) (BOARD_TUD_RHPORT == _n)
#else
#define PORT_SUPPORT_DEVICE(_n) 0
#endif
#ifdef BOARD_TUH_RHPORT
#define PORT_SUPPORT_HOST(_n) (BOARD_TUH_RHPORT == _n)
#else
#define PORT_SUPPORT_HOST(_n) 0
#endif
//--------------------------------------------------------------------+
// MACRO TYPEDEF CONSTANT ENUM
//--------------------------------------------------------------------+
// IOCON pin mux
#define IOCON_PIO_DIGITAL_EN 0x0100u // Enables digital function
#define IOCON_PIO_FUNC0 0x00u // Selects pin function 0
#define IOCON_PIO_FUNC1 0x01u // Selects pin function 1
#define IOCON_PIO_FUNC4 0x04u // Selects pin function 4
#define IOCON_PIO_FUNC7 0x07u // Selects pin function 7
#define IOCON_PIO_INV_DI 0x00u // Input function is not inverted
#define IOCON_PIO_MODE_INACT 0x00u // No addition pin function
#define IOCON_PIO_OPENDRAIN_DI 0x00u // Open drain is disabled
#define IOCON_PIO_SLEW_STANDARD 0x00u // Standard mode, output slew rate control is enabled
#define IOCON_PIO_DIG_FUNC0_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_FUNC0) // Digital pin function 0 enabled
#define IOCON_PIO_DIG_FUNC1_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_FUNC1) // Digital pin function 1 enabled
#define IOCON_PIO_DIG_FUNC4_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_FUNC4) // Digital pin function 2 enabled
#define IOCON_PIO_DIG_FUNC7_EN (IOCON_PIO_DIGITAL_EN | IOCON_PIO_FUNC7) // Digital pin function 2 enabled
//--------------------------------------------------------------------+
// 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_FRO192M); /*!< Ensure FRO is on */
CLOCK_SetupFROClocking(12000000U); /*!< Set up FRO to the 12 MHz, just for sure */
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 */
CLOCK_SetupFROClocking(96000000U); /*!< Set up high frequency FRO output to selected frequency */
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 */
/*!< 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
GPIO_PortInit(GPIO, 0);
GPIO_PortInit(GPIO, 1);
// LED
IOCON_PinMuxSet(IOCON, LED_PORT, LED_PIN, IOCON_PIO_DIG_FUNC0_EN);
gpio_pin_config_t const led_config = { kGPIO_DigitalOutput, 1};
GPIO_PinInit(GPIO, LED_PORT, LED_PIN, &led_config);
board_led_write(0);
#ifdef NEOPIXEL_PIN
// Neopixel
static uint32_t pixelData[NEOPIXEL_NUMBER];
IOCON_PinMuxSet(IOCON, NEOPIXEL_PORT, NEOPIXEL_PIN, IOCON_PIO_DIG_FUNC4_EN);
sctpix_init(NEOPIXEL_TYPE);
sctpix_addCh(NEOPIXEL_CH, pixelData, NEOPIXEL_NUMBER);
sctpix_setPixel(NEOPIXEL_CH, 0, 0x100010);
sctpix_setPixel(NEOPIXEL_CH, 1, 0x100010);
sctpix_show();
#endif
// Button
IOCON_PinMuxSet(IOCON, BUTTON_PORT, BUTTON_PIN, IOCON_PIO_DIG_FUNC0_EN);
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 VBUS
/* PORT0 PIN22 configured as USB0_VBUS */
IOCON_PinMuxSet(IOCON, 0U, 22U, IOCON_PIO_DIG_FUNC7_EN);
#if PORT_SUPPORT_DEVICE(0)
// Port0 is Full Speed
/* Turn on USB0 Phy */
POWER_DisablePD(kPDRUNCFG_PD_USB0_PHY);
/* reset the IP to make sure it's in reset state. */
RESET_PeripheralReset(kUSB0D_RST_SHIFT_RSTn);
RESET_PeripheralReset(kUSB0HSL_RST_SHIFT_RSTn);
RESET_PeripheralReset(kUSB0HMR_RST_SHIFT_RSTn);
// Enable USB Clock Adjustments to trim the FRO for the full speed controller
ANACTRL->FRO192M_CTRL |= ANACTRL_FRO192M_CTRL_USBCLKADJ_MASK;
CLOCK_SetClkDiv(kCLOCK_DivUsb0Clk, 1, false);
CLOCK_AttachClk(kFRO_HF_to_USB0_CLK);
/*According to reference manual, 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
/* enable USB Device clock */
CLOCK_EnableUsbfs0DeviceClock(kCLOCK_UsbfsSrcFro, CLOCK_GetFreq(kCLOCK_FroHf));
#endif
#if PORT_SUPPORT_DEVICE(1)
// Port1 is High Speed
/* Turn on USB1 Phy */
POWER_DisablePD(kPDRUNCFG_PD_USB1_PHY);
/* reset the IP to make sure it's in reset state. */
RESET_PeripheralReset(kUSB1H_RST_SHIFT_RSTn);
RESET_PeripheralReset(kUSB1D_RST_SHIFT_RSTn);
RESET_PeripheralReset(kUSB1_RST_SHIFT_RSTn);
RESET_PeripheralReset(kUSB1RAM_RST_SHIFT_RSTn);
/* According to reference manual, device mode setting has to be set by access usb host register */
CLOCK_EnableClock(kCLOCK_Usbh1); // enable usb0 host clock
USBHSH->PORTMODE = USBHSH_PORTMODE_SW_PDCOM_MASK; // Put PHY powerdown under software control
USBHSH->PORTMODE |= USBHSH_PORTMODE_DEV_ENABLE_MASK;
CLOCK_DisableClock(kCLOCK_Usbh1); // disable usb0 host clock
/* enable USB Device clock */
CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_UsbPhySrcExt, XTAL0_CLK_HZ);
CLOCK_EnableUsbhs0DeviceClock(kCLOCK_UsbSrcUnused, 0U);
CLOCK_EnableClock(kCLOCK_UsbRam1);
// Enable PHY support for Low speed device + LS via FS Hub
USBPHY->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK | USBPHY_CTRL_SET_ENUTMILEVEL3_MASK;
// Enable all power for normal operation
USBPHY->PWD = 0;
USBPHY->CTRL_SET = USBPHY_CTRL_SET_ENAUTOCLR_CLKGATE_MASK;
USBPHY->CTRL_SET = USBPHY_CTRL_SET_ENAUTOCLR_PHY_PWD_MASK;
// TX Timing
// uint32_t phytx = USBPHY->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);
// USBPHY->TX = phytx;
#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));
#ifdef NEOPIXEL_PIN
if (state) {
sctpix_setPixel(NEOPIXEL_CH, 0, 0x100000);
sctpix_setPixel(NEOPIXEL_CH, 1, 0x101010);
} else {
sctpix_setPixel(NEOPIXEL_CH, 0, 0x001000);
sctpix_setPixel(NEOPIXEL_CH, 1, 0x000010);
}
sctpix_show();
#endif
}
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 const *) 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
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