diff --git a/hw/bsp/nutiny_sdk_nuc120/board.mk b/hw/bsp/nutiny_sdk_nuc120/board.mk new file mode 100644 index 000000000..f2ee09f19 --- /dev/null +++ b/hw/bsp/nutiny_sdk_nuc120/board.mk @@ -0,0 +1,56 @@ +CFLAGS += \ + -flto \ + -mthumb \ + -mabi=aapcs-linux \ + -mcpu=cortex-m0 \ + -DCFG_TUSB_MCU=OPT_MCU_NUC120 + +# All source paths should be relative to the top level. +LD_FILE = hw/bsp/nutiny_sdk_nuc120/nuc120_flash.ld + +SRC_C += \ + hw/mcu/nuvoton/nuc100_120/Device/Nuvoton/NUC100Series/Source/system_NUC100Series.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/acmp.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/adc.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/clk.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/crc.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/fmc.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/gpio.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/i2c.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/i2s.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/pdma.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/ps2.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/pwm.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/rtc.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/sc.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/spi.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/sys.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/timer.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/uart.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/usbd.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/wdt.c \ + hw/mcu/nuvoton/nuc100_120/StdDriver/src/wwdt.c + +SRC_S += \ + hw/mcu/nuvoton/nuc100_120/Device/Nuvoton/NUC100Series/Source/GCC/startup_NUC100Series.S + +INC += \ + $(TOP)/hw/mcu/nuvoton/nuc100_120/Device/Nuvoton/NUC100Series/Include \ + $(TOP)/hw/mcu/nuvoton/nuc100_120/StdDriver/inc \ + $(TOP)/hw/mcu/nuvoton/nuc100_120/CMSIS/Include + +# For TinyUSB port source +VENDOR = nuvoton +CHIP_FAMILY = nuc120 + +# For freeRTOS port source +FREERTOS_PORT = ARM_CM0 + +# For flash-jlink target +JLINK_DEVICE = NUC120LE3 +JLINK_IF = swd + +# Flash using Nuvoton's openocd fork at https://github.com/OpenNuvoton/OpenOCD-Nuvoton +# Please compile and install it from github source +flash: $(BUILD)/$(BOARD)-firmware.elf + openocd -f interface/nulink.cfg -f target/numicroM0.cfg -c "program $< reset exit" diff --git a/hw/bsp/nutiny_sdk_nuc120/nuc120_flash.ld b/hw/bsp/nutiny_sdk_nuc120/nuc120_flash.ld new file mode 100644 index 000000000..cab12c8b9 --- /dev/null +++ b/hw/bsp/nutiny_sdk_nuc120/nuc120_flash.ld @@ -0,0 +1,195 @@ +/* Linker script to configure memory regions. */ +MEMORY +{ + FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x20000 /* 128k */ + RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x4000 /* 16k */ +} + +/* Library configurations */ +GROUP(libgcc.a libc.a libm.a libnosys.a) + +/* Linker script to place sections and symbol values. Should be used together + * with other linker script that defines memory regions FLASH and RAM. + * It references following symbols, which must be defined in code: + * Reset_Handler : Entry of reset handler + * + * It defines following symbols, which code can use without definition: + * __exidx_start + * __exidx_end + * __copy_table_start__ + * __copy_table_end__ + * __zero_table_start__ + * __zero_table_end__ + * __etext + * __data_start__ + * __preinit_array_start + * __preinit_array_end + * __init_array_start + * __init_array_end + * __fini_array_start + * __fini_array_end + * __data_end__ + * __bss_start__ + * __bss_end__ + * __end__ + * end + * __HeapLimit + * __StackLimit + * __StackTop + * __stack + * __Vectors_End + * __Vectors_Size + */ +ENTRY(Reset_Handler) + +SECTIONS +{ + .text : + { + KEEP(*(.vectors)) + __Vectors_End = .; + __Vectors_Size = __Vectors_End - __Vectors; + __end__ = .; + + *(.text*) + + KEEP(*(.init)) + KEEP(*(.fini)) + + /* .ctors */ + *crtbegin.o(.ctors) + *crtbegin?.o(.ctors) + *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors) + *(SORT(.ctors.*)) + *(.ctors) + + /* .dtors */ + *crtbegin.o(.dtors) + *crtbegin?.o(.dtors) + *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors) + *(SORT(.dtors.*)) + *(.dtors) + + *(.rodata*) + + KEEP(*(.eh_frame*)) + } > FLASH + + .ARM.extab : + { + *(.ARM.extab* .gnu.linkonce.armextab.*) + } > FLASH + + __exidx_start = .; + .ARM.exidx : + { + *(.ARM.exidx* .gnu.linkonce.armexidx.*) + } > FLASH + __exidx_end = .; + + /* To copy multiple ROM to RAM sections, + * uncomment .copy.table section and, + * define __STARTUP_COPY_MULTIPLE in startup_ARMCMx.S */ + /* + .copy.table : + { + . = ALIGN(4); + __copy_table_start__ = .; + LONG (__etext) + LONG (__data_start__) + LONG (__data_end__ - __data_start__) + LONG (__etext2) + LONG (__data2_start__) + LONG (__data2_end__ - __data2_start__) + __copy_table_end__ = .; + } > FLASH + */ + + /* To clear multiple BSS sections, + * uncomment .zero.table section and, + * define __STARTUP_CLEAR_BSS_MULTIPLE in startup_ARMCMx.S */ + /* + .zero.table : + { + . = ALIGN(4); + __zero_table_start__ = .; + LONG (__bss_start__) + LONG (__bss_end__ - __bss_start__) + LONG (__bss2_start__) + LONG (__bss2_end__ - __bss2_start__) + __zero_table_end__ = .; + } > FLASH + */ + + __etext = .; + + .data : AT (__etext) + { + __data_start__ = .; + *(vtable) + *(.data*) + + . = ALIGN(4); + /* preinit data */ + PROVIDE_HIDDEN (__preinit_array_start = .); + KEEP(*(.preinit_array)) + PROVIDE_HIDDEN (__preinit_array_end = .); + + . = ALIGN(4); + /* init data */ + PROVIDE_HIDDEN (__init_array_start = .); + KEEP(*(SORT(.init_array.*))) + KEEP(*(.init_array)) + PROVIDE_HIDDEN (__init_array_end = .); + + + . = ALIGN(4); + /* finit data */ + PROVIDE_HIDDEN (__fini_array_start = .); + KEEP(*(SORT(.fini_array.*))) + KEEP(*(.fini_array)) + PROVIDE_HIDDEN (__fini_array_end = .); + + KEEP(*(.jcr*)) + . = ALIGN(4); + /* All data end */ + __data_end__ = .; + + } > RAM + + .bss : + { + . = ALIGN(4); + __bss_start__ = .; + *(.bss*) + *(COMMON) + . = ALIGN(4); + __bss_end__ = .; + } > RAM + + .heap (COPY): + { + __HeapBase = .; + __end__ = .; + end = __end__; + KEEP(*(.heap*)) + __HeapLimit = .; + } > RAM + + /* .stack_dummy section doesn't contains any symbols. It is only + * used for linker to calculate size of stack sections, and assign + * values to stack symbols later */ + .stack_dummy (COPY): + { + KEEP(*(.stack*)) + } > RAM + + /* Set stack top to end of RAM, and stack limit move down by + * size of stack_dummy section */ + __StackTop = ORIGIN(RAM) + LENGTH(RAM); + __StackLimit = __StackTop - SIZEOF(.stack_dummy); + PROVIDE(__stack = __StackTop); + + /* Check if data + heap + stack exceeds RAM limit */ + ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack") +} diff --git a/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c b/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c new file mode 100644 index 000000000..0650a4e3a --- /dev/null +++ b/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c @@ -0,0 +1,122 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Ha Thach (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 "NUC100Series.h" +#include "clk.h" +#include "sys.h" + +#define LED_PORT PB +#define LED_PIN 0 +#define LED_PIN_IO PB0 +#define LED_STATE_ON 0 + +void board_init(void) +{ + SYS_UnlockReg(); + + /* Enable Internal RC 22.1184 MHz clock */ + CLK_EnableXtalRC(CLK_PWRCON_OSC22M_EN_Msk); + + /* Waiting for Internal RC clock ready */ + CLK_WaitClockReady(CLK_CLKSTATUS_OSC22M_STB_Msk); + + /* Switch HCLK clock source to Internal RC and HCLK source divide 1 */ + CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HIRC, CLK_CLKDIV_HCLK(1)); + + /* Enable external XTAL 12 MHz clock */ + CLK_EnableXtalRC(CLK_PWRCON_XTL12M_EN_Msk); + + /* Waiting for external XTAL clock ready */ + CLK_WaitClockReady(CLK_CLKSTATUS_XTL12M_STB_Msk); + + /* Set core clock */ + CLK_SetCoreClock(48000000); + + /* Enable module clock */ + CLK_EnableModuleClock(USBD_MODULE); + + /* Select module clock source */ + CLK_SetModuleClock(USBD_MODULE, 0, CLK_CLKDIV_USB(1)); + + SYS_LockReg(); + +#if CFG_TUSB_OS == OPT_OS_NONE + // 1ms tick timer + SysTick_Config(48000000 / 1000); +#endif + + GPIO_SetMode(LED_PORT, 1UL << LED_PIN, GPIO_PMD_OUTPUT); +} + +#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 + +//--------------------------------------------------------------------+ +// Board porting API +//--------------------------------------------------------------------+ + +void board_led_write(bool state) +{ +#if 0 + /* this would be the simplest solution... *IF* the part supported the pin data interface */ + LED_PIN_IO = (state) ? LED_STATE_ON : (1-LED_STATE_ON); +#else + /* if the part's *PDIO pin data registers don't work, a more elaborate approach is needed */ + uint32_t irq_state = __get_PRIMASK(); + __disable_irq(); + uint32_t current = LED_PORT->DOUT & ~(1UL << LED_PIN); + LED_PORT->DOUT = current | (((state) ? LED_STATE_ON : (1UL-LED_STATE_ON)) << LED_PIN); + __set_PRIMASK(irq_state); +#endif +} + +uint32_t board_button_read(void) +{ + return 0; +} + +int board_uart_read(uint8_t* buf, int len) +{ + (void) buf; (void) len; + return 0; +} + +int board_uart_write(void const * buf, int len) +{ + (void) buf; (void) len; + return 0; +} diff --git a/hw/mcu/nuvoton b/hw/mcu/nuvoton index dc96fff79..797dc6cd5 160000 --- a/hw/mcu/nuvoton +++ b/hw/mcu/nuvoton @@ -1 +1 @@ -Subproject commit dc96fff794d14818c93ea1d4d760d51a014d70c5 +Subproject commit 797dc6cd55c84aa6c23c4690da2f3900339a6e24 diff --git a/src/portable/nuvoton/nuc120/dcd_nuc120.c b/src/portable/nuvoton/nuc120/dcd_nuc120.c new file mode 100644 index 000000000..4e1db24a4 --- /dev/null +++ b/src/portable/nuvoton/nuc120/dcd_nuc120.c @@ -0,0 +1,433 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019-2020 Peter Lawrence + * + * 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. + */ + +/* + Theory of operation: + + The NUC100/NUC120 USBD peripheral has six "EP"s, but each is simplex, + so two collectively (peripheral nomenclature of "EP0" and "EP1") are needed to + implement USB EP0. PERIPH_EP0 and PERIPH_EP1 are used by this driver for + EP0_IN and EP0_OUT respectively. This leaves up to four for user usage. +*/ + +#include "tusb_option.h" + +#if TUSB_OPT_DEVICE_ENABLED && (CFG_TUSB_MCU == OPT_MCU_NUC120) + +#include "device/dcd.h" +#include "NUC100Series.h" + +/* allocation of USBD RAM for Setup, EP0_IN, and and EP_OUT */ +#define PERIPH_SETUP_BUF_BASE 0 +#define PERIPH_SETUP_BUF_LEN 8 +#define PERIPH_EP0_BUF_BASE (PERIPH_SETUP_BUF_BASE + PERIPH_SETUP_BUF_LEN) +#define PERIPH_EP0_BUF_LEN CFG_TUD_ENDPOINT0_SIZE +#define PERIPH_EP1_BUF_BASE (PERIPH_EP0_BUF_BASE + PERIPH_EP0_BUF_LEN) +#define PERIPH_EP1_BUF_LEN CFG_TUD_ENDPOINT0_SIZE +#define PERIPH_EP2_BUF_BASE (PERIPH_EP1_BUF_BASE + PERIPH_EP1_BUF_LEN) + +/* rather important info unfortunately not provided by device include files: how much there is */ +#define USBD_BUF_SIZE 512 + +enum ep_enum +{ + PERIPH_EP0 = 0, + PERIPH_EP1 = 1, + PERIPH_EP2 = 2, + PERIPH_EP3 = 3, + PERIPH_EP4 = 4, + PERIPH_EP5 = 5, + PERIPH_MAX_EP, +}; + +/* set by dcd_set_address() */ +static volatile uint8_t assigned_address; + +/* reset by dcd_init(), this is used by dcd_edpt_open() to assign USBD peripheral buffer addresses */ +static uint32_t bufseg_addr; + +/* used by dcd_edpt_xfer() and the ISR to reset the data sync (DATA0/DATA1) in an EP0_IN transfer */ +static bool active_ep0_xfer; + +/* RAM table needed to track ongoing transfers performed by dcd_edpt_xfer(), dcd_in_xfer(), and the ISR */ +static struct xfer_ctl_t +{ + uint8_t *data_ptr; /* data_ptr tracks where to next copy data to (for OUT) or from (for IN) */ + union { + uint16_t in_remaining_bytes; /* for IN endpoints, we track how many bytes are left to transfer */ + uint16_t out_bytes_so_far; /* but for OUT endpoints, we track how many bytes we've transferred so far */ + }; + uint16_t max_packet_size; /* needed since device driver only finds out this at runtime */ + uint16_t total_bytes; /* quantity needed to pass as argument to dcd_event_xfer_complete() (for IN endpoints) */ +} xfer_table[PERIPH_MAX_EP]; + +/* + local helper functions +*/ + +static void usb_attach(void) +{ + USBD->DRVSE0 &= ~USBD_DRVSE0_DRVSE0_Msk; +} + +static void usb_detach(void) +{ + USBD->DRVSE0 |= USBD_DRVSE0_DRVSE0_Msk; +} + +static void usb_control_send_zlp(void) +{ + USBD->EP[PERIPH_EP0].CFG |= USBD_CFG_DSQ_SYNC_Msk; + USBD->EP[PERIPH_EP0].MXPLD = 0; +} + +/* reconstruct ep_addr from particular USB Configuration Register */ +static uint8_t decode_ep_addr(USBD_EP_T *ep) +{ + uint8_t ep_addr = ep->CFG & USBD_CFG_EP_NUM_Msk; + if ( USBD_CFG_EPMODE_IN == (ep->CFG & USBD_CFG_STATE_Msk) ) + ep_addr |= TUSB_DIR_IN_MASK; + return ep_addr; +} + +/* map 8-bit ep_addr into peripheral endpoint index (PERIPH_EP0...) */ +static USBD_EP_T *ep_entry(uint8_t ep_addr, bool add) +{ + USBD_EP_T *ep; + enum ep_enum ep_index; + + for (ep_index = PERIPH_EP0, ep = USBD->EP; ep_index < PERIPH_MAX_EP; ep_index++, ep++) + { + if (add) + { + /* take first peripheral endpoint that is unused */ + if (0 == (ep->CFG & USBD_CFG_STATE_Msk)) return ep; + } + else + { + /* find a peripheral endpoint that matches ep_addr */ + uint8_t candidate_ep_addr = decode_ep_addr(ep); + if (candidate_ep_addr == ep_addr) return ep; + } + } + + return NULL; +} + +/* perform an IN endpoint transfer; this is called by dcd_edpt_xfer() and the ISR */ +static void dcd_in_xfer(struct xfer_ctl_t *xfer, USBD_EP_T *ep) +{ + uint16_t bytes_now = tu_min16(xfer->in_remaining_bytes, xfer->max_packet_size); + + memcpy((uint8_t *)(USBD_BUF_BASE + ep->BUFSEG), xfer->data_ptr, bytes_now); + ep->MXPLD = bytes_now; +} + +/* called by dcd_init() as well as by the ISR during a USB bus reset */ +static void bus_reset(void) +{ + USBD->STBUFSEG = PERIPH_SETUP_BUF_BASE; + + for (enum ep_enum ep_index = PERIPH_EP0; ep_index < PERIPH_MAX_EP; ep_index++) + { + USBD->EP[ep_index].CFG = 0; + USBD->EP[ep_index].CFGP = 0; + } + + /* allocate the default EP0 endpoints */ + + USBD->EP[PERIPH_EP0].CFG = USBD_CFG_CSTALL_Msk | USBD_CFG_EPMODE_IN; + USBD->EP[PERIPH_EP0].BUFSEG = PERIPH_EP0_BUF_BASE; + xfer_table[PERIPH_EP0].max_packet_size = PERIPH_EP0_BUF_LEN; + + USBD->EP[PERIPH_EP1].CFG = USBD_CFG_CSTALL_Msk | USBD_CFG_EPMODE_OUT; + USBD->EP[PERIPH_EP1].BUFSEG = PERIPH_EP1_BUF_BASE; + xfer_table[PERIPH_EP1].max_packet_size = PERIPH_EP1_BUF_LEN; + + /* USB RAM beyond what we've allocated above is available to the user */ + bufseg_addr = PERIPH_EP2_BUF_BASE; + + /* Reset USB device address */ + USBD->FADDR = 0; + + /* reset EP0_IN flag */ + active_ep0_xfer = false; +} + +/* centralized location for USBD interrupt enable bit mask */ +static const uint32_t enabled_irqs = USBD_INTSTS_FLDET_STS_Msk | USBD_INTSTS_BUS_STS_Msk | USBD_INTSTS_SETUP_Msk | USBD_INTSTS_USB_STS_Msk; + +/* + NUC100/NUC120 TinyUSB API driver implementation +*/ + +void dcd_init(uint8_t rhport) +{ + (void) rhport; + + USBD->ATTR = 0x7D0; + + usb_detach(); + + bus_reset(); + + usb_attach(); + + USBD->INTSTS = enabled_irqs; + USBD->INTEN = enabled_irqs; +} + +void dcd_int_enable(uint8_t rhport) +{ + (void) rhport; + NVIC_EnableIRQ(USBD_IRQn); +} + +void dcd_int_disable(uint8_t rhport) +{ + (void) rhport; + NVIC_DisableIRQ(USBD_IRQn); +} + +void dcd_set_address(uint8_t rhport, uint8_t dev_addr) +{ + (void) rhport; + usb_control_send_zlp(); /* SET_ADDRESS is the one exception where TinyUSB doesn't use dcd_edpt_xfer() to generate a ZLP */ + assigned_address = dev_addr; +} + +void dcd_set_config(uint8_t rhport, uint8_t config_num) +{ + (void) rhport; + (void) config_num; +} + +void dcd_remote_wakeup(uint8_t rhport) +{ + (void) rhport; + USBD->ATTR = USBD_ATTR_RWAKEUP_Msk; +} + +bool dcd_edpt_open(uint8_t rhport, tusb_desc_endpoint_t const * p_endpoint_desc) +{ + (void) rhport; + + USBD_EP_T *ep = ep_entry(p_endpoint_desc->bEndpointAddress, true); + TU_ASSERT(ep); + + /* mine the data for the information we need */ + int const dir = tu_edpt_dir(p_endpoint_desc->bEndpointAddress); + int const size = p_endpoint_desc->wMaxPacketSize.size; + tusb_xfer_type_t const type = p_endpoint_desc->bmAttributes.xfer; + struct xfer_ctl_t *xfer = &xfer_table[ep - USBD->EP]; + + /* allocate buffer from USB RAM */ + ep->BUFSEG = bufseg_addr; + bufseg_addr += size; + TU_ASSERT(bufseg_addr <= USBD_BUF_SIZE); + + /* construct USB Configuration Register value and then write it */ + uint32_t cfg = tu_edpt_number(p_endpoint_desc->bEndpointAddress); + cfg |= (TUSB_DIR_IN == dir) ? USBD_CFG_EPMODE_IN : USBD_CFG_EPMODE_OUT; + if (TUSB_XFER_ISOCHRONOUS == type) + cfg |= USBD_CFG_TYPE_ISO; + ep->CFG = cfg; + + /* make a note of the endpoint size */ + xfer->max_packet_size = size; + + return true; +} + +bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t *buffer, uint16_t total_bytes) +{ + (void) rhport; + + /* mine the data for the information we need */ + tusb_dir_t dir = tu_edpt_dir(ep_addr); + USBD_EP_T *ep = ep_entry(ep_addr, false); + struct xfer_ctl_t *xfer = &xfer_table[ep - USBD->EP]; + + /* store away the information we'll needing now and later */ + xfer->data_ptr = buffer; + xfer->in_remaining_bytes = total_bytes; + xfer->total_bytes = total_bytes; + + /* for the first of one or more EP0_IN packets in a message, the first must be DATA1 */ + if ( (0x80 == ep_addr) && !active_ep0_xfer ) ep->CFG |= USBD_CFG_DSQ_SYNC_Msk; + + if (TUSB_DIR_IN == dir) + { + dcd_in_xfer(xfer, ep); + } + else + { + xfer->out_bytes_so_far = 0; + ep->MXPLD = xfer->max_packet_size; + } + + return true; +} + +void dcd_edpt_stall(uint8_t rhport, uint8_t ep_addr) +{ + (void) rhport; + USBD_EP_T *ep = ep_entry(ep_addr, false); + ep->CFGP |= USBD_CFGP_SSTALL_Msk; +} + +void dcd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr) +{ + (void) rhport; + USBD_EP_T *ep = ep_entry(ep_addr, false); + ep->CFG |= USBD_CFG_CSTALL_Msk; +} + +void USBD_IRQHandler(void) +{ + uint32_t status = USBD->INTSTS; + uint32_t state = USBD->ATTR & 0xf; + + if(status & USBD_INTSTS_FLDET_STS_Msk) + { + if(USBD->FLDET & USBD_FLDET_FLDET_Msk) + { + /* USB connect */ + USBD->ATTR |= USBD_ATTR_USB_EN_Msk | USBD_ATTR_PHY_EN_Msk; + } + else + { + /* USB disconnect */ + USBD->ATTR &= ~USBD_ATTR_USB_EN_Msk; + } + } + + if(status & USBD_INTSTS_BUS_STS_Msk) + { + if(state & USBD_STATE_USBRST) + { + /* USB bus reset */ + USBD->ATTR |= USBD_ATTR_USB_EN_Msk | USBD_ATTR_PHY_EN_Msk; + + bus_reset(); + + dcd_event_bus_signal(0, DCD_EVENT_BUS_RESET, true); + } + + if(state & USBD_STATE_SUSPEND) + { + /* Enable USB but disable PHY */ + USBD->ATTR &= ~USBD_ATTR_PHY_EN_Msk; + dcd_event_bus_signal(0, DCD_EVENT_SUSPEND, true); + } + + if(state & USBD_STATE_RESUME) + { + /* Enable USB and enable PHY */ + USBD->ATTR |= USBD_ATTR_USB_EN_Msk | USBD_ATTR_PHY_EN_Msk; + dcd_event_bus_signal(0, DCD_EVENT_RESUME, true); + } + } + + if(status & USBD_INTSTS_SETUP_Msk) + { + /* clear the data ready flag of control endpoints */ + USBD->EP[PERIPH_EP0].CFGP |= USBD_CFGP_CLRRDY_Msk; + USBD->EP[PERIPH_EP1].CFGP |= USBD_CFGP_CLRRDY_Msk; + + /* get SETUP packet from USB buffer */ + dcd_event_setup_received(0, (uint8_t *)USBD_BUF_BASE, true); + } + + if(status & USBD_INTSTS_USB_STS_Msk) + { + if (status & (1UL << USBD_INTSTS_EPEVT_Pos)) /* PERIPH_EP0 (EP0_IN) event: this is treated separately from the rest */ + { + /* given ACK from host has happened, we can now set the address (if not already done) */ + if((USBD->FADDR != assigned_address) && (USBD->FADDR == 0)) USBD->FADDR = assigned_address; + + uint16_t const available_bytes = USBD->EP[PERIPH_EP0].MXPLD; + + active_ep0_xfer = (available_bytes == xfer_table[PERIPH_EP0].max_packet_size); + + dcd_event_xfer_complete(0, 0x80, available_bytes, XFER_RESULT_SUCCESS, true); + } + + /* service PERIPH_EP1 through PERIPH_EP7 */ + enum ep_enum ep_index; + uint32_t mask; + struct xfer_ctl_t *xfer; + USBD_EP_T *ep; + for (ep_index = PERIPH_EP1, mask = (2UL << USBD_INTSTS_EPEVT_Pos), xfer = &xfer_table[PERIPH_EP1], ep = &USBD->EP[PERIPH_EP1]; ep_index < PERIPH_MAX_EP; ep_index++, mask <<= 1, xfer++, ep++) + { + if(status & mask) + { + USBD->INTSTS = mask; + + uint16_t const available_bytes = ep->MXPLD; + uint8_t const ep_addr = decode_ep_addr(ep); + bool const out_ep = !(ep_addr & TUSB_DIR_IN_MASK); + + if (out_ep) + { + /* copy the data from the PC to the previously provided buffer */ + memcpy(xfer->data_ptr, (uint8_t *)(USBD_BUF_BASE + ep->BUFSEG), available_bytes); + xfer->out_bytes_so_far += available_bytes; + xfer->data_ptr += available_bytes; + + /* when the transfer is finished, alert TinyUSB; otherwise, accept more data */ + if ( (xfer->total_bytes == xfer->out_bytes_so_far) || (available_bytes < xfer->max_packet_size) ) + dcd_event_xfer_complete(0, ep_addr, xfer->out_bytes_so_far, XFER_RESULT_SUCCESS, true); + else + ep->MXPLD = xfer->max_packet_size; + } + else + { + /* update the bookkeeping to reflect the data that has now been sent to the PC */ + xfer->in_remaining_bytes -= available_bytes; + xfer->data_ptr += available_bytes; + + /* if more data to send, send it; otherwise, alert TinyUSB that we've finished */ + if (xfer->in_remaining_bytes) + dcd_in_xfer(xfer, ep); + else + dcd_event_xfer_complete(0, ep_addr, xfer->total_bytes, XFER_RESULT_SUCCESS, true); + } + } + } + } + + /* acknowledge all interrupts */ + USBD->INTSTS = status & enabled_irqs; +} + +void dcd_isr(uint8_t rhport) +{ + (void) rhport; + USBD_IRQHandler(); +} + +#endif diff --git a/src/tusb_option.h b/src/tusb_option.h index d39dd1046..46684ff7f 100644 --- a/src/tusb_option.h +++ b/src/tusb_option.h @@ -79,6 +79,7 @@ #define OPT_MCU_NUC121 800 #define OPT_MCU_NUC126 801 +#define OPT_MCU_NUC120 802 /** @} */