diff --git a/.idea/cmake.xml b/.idea/cmake.xml index 3c016ccff..c9024715c 100644 --- a/.idea/cmake.xml +++ b/.idea/cmake.xml @@ -2,7 +2,7 @@ - + @@ -37,6 +37,7 @@ + \ No newline at end of file diff --git a/.idea/runConfigurations/mcx947_jlink.xml b/.idea/runConfigurations/mcx947_jlink.xml index 71616ab70..27661bec5 100644 --- a/.idea/runConfigurations/mcx947_jlink.xml +++ b/.idea/runConfigurations/mcx947_jlink.xml @@ -1,5 +1,5 @@ - + diff --git a/.idea/runConfigurations/rt1010_jlink.xml b/.idea/runConfigurations/rt1010_jlink.xml index e660a46ae..68ebb8885 100644 --- a/.idea/runConfigurations/rt1010_jlink.xml +++ b/.idea/runConfigurations/rt1010_jlink.xml @@ -1,5 +1,5 @@ - + diff --git a/.idea/runConfigurations/rt1060_jlink.xml b/.idea/runConfigurations/rt1060_jlink.xml index b9a47a2ce..014a4d1b1 100644 --- a/.idea/runConfigurations/rt1060_jlink.xml +++ b/.idea/runConfigurations/rt1060_jlink.xml @@ -1,5 +1,5 @@ - + diff --git a/hw/bsp/kinetis_kl/family.cmake b/hw/bsp/kinetis_kl/family.cmake index 77b932b8e..f491b3dee 100644 --- a/hw/bsp/kinetis_kl/family.cmake +++ b/hw/bsp/kinetis_kl/family.cmake @@ -88,7 +88,7 @@ function(family_configure_example TARGET) # These files are built for each example since it depends on example's tusb_config.h target_sources(${TARGET} PUBLIC # TinyUSB Port - ${TOP}/src/portable/nxp/khci/dcd_khci.c + ${TOP}/src/portable/chipidea/ci_fs/dcd_ci_fs.c ${TOP}/src/portable/nxp/khci/hcd_khci.c # BSP ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c diff --git a/hw/bsp/mcx/boards/mcxn947brk/board.cmake b/hw/bsp/mcx/boards/mcxn947brk/board.cmake index 650f10967..8c3280743 100644 --- a/hw/bsp/mcx/boards/mcxn947brk/board.cmake +++ b/hw/bsp/mcx/boards/mcxn947brk/board.cmake @@ -5,12 +5,14 @@ set(JLINK_DEVICE MCXN947_M33_0) set(PYOCD_TARGET MCXN947) set(NXPLINK_DEVICE MCXN947:MCXN947) +set(PORT 1) + function(update_board TARGET) target_compile_definitions(${TARGET} PUBLIC CPU_MCXN947VDF_cm33_core0 - # port 1 is highspeed - BOARD_TUD_RHPORT=1 - BOARD_TUD_MAX_SPEED=OPT_MODE_HIGH_SPEED + BOARD_TUD_RHPORT=${PORT} + # port 0 is fullspeed, port 1 is highspeed + BOARD_TUD_MAX_SPEED=$ ) target_sources(${TARGET} PUBLIC ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/clock_config.c diff --git a/hw/bsp/mcx/family.c b/hw/bsp/mcx/family.c index 36d2f2d0a..4344ffc4e 100644 --- a/hw/bsp/mcx/family.c +++ b/hw/bsp/mcx/family.c @@ -66,6 +66,7 @@ void board_init(void) { BOARD_InitPins(); BOARD_InitBootClocks(); + CLOCK_SetupExtClocking(XTAL0_CLK_HZ); // 1ms tick timer SysTick_Config(SystemCoreClock / 1000); @@ -122,31 +123,13 @@ void board_init(void) // USB VBUS /* PORT0 PIN22 configured as USB0_VBUS */ - CLOCK_SetupExtClocking(XTAL0_CLK_HZ); - #if PORT_SUPPORT_DEVICE(0) // Port0 is Full Speed - /* Turn on USB0 Phy */ - POWER_DisablePD(kPDRUNCFG_PD_USB0_PHY); - - /* reset the IP to make sure it's in reset state. */ - RESET_PeripheralReset(kUSB0D_RST_SHIFT_RSTn); - RESET_PeripheralReset(kUSB0HSL_RST_SHIFT_RSTn); - RESET_PeripheralReset(kUSB0HMR_RST_SHIFT_RSTn); - - // Enable USB Clock Adjustments to trim the FRO for the full speed controller - ANACTRL->FRO192M_CTRL |= ANACTRL_FRO192M_CTRL_USBCLKADJ_MASK; - CLOCK_SetClkDiv(kCLOCK_DivUsb0Clk, 1, false); - CLOCK_AttachClk(kFRO_HF_to_USB0_CLK); - - /*According to reference manual, device mode setting has to be set by access usb host register */ - CLOCK_EnableClock(kCLOCK_Usbhsl0); // enable usb0 host clock - USBFSH->PORTMODE |= USBFSH_PORTMODE_DEV_ENABLE_MASK; - CLOCK_DisableClock(kCLOCK_Usbhsl0); // disable usb0 host clock - - /* enable USB Device clock */ - CLOCK_EnableUsbfs0DeviceClock(kCLOCK_UsbfsSrcFro, CLOCK_GetFreq(kCLOCK_FroHf)); + CLOCK_AttachClk(kCLK_48M_to_USB0); + CLOCK_EnableClock(kCLOCK_Usb0Ram); + CLOCK_EnableClock(kCLOCK_Usb0Fs); + CLOCK_EnableUsbfsClock(); #endif #if PORT_SUPPORT_DEVICE(1) diff --git a/hw/bsp/mcx/family.cmake b/hw/bsp/mcx/family.cmake index 1c85b51f8..7c5feaecf 100644 --- a/hw/bsp/mcx/family.cmake +++ b/hw/bsp/mcx/family.cmake @@ -88,8 +88,8 @@ function(family_configure_example TARGET) #---------- Port Specific ---------- # These files are built for each example since it depends on example's tusb_config.h target_sources(${TARGET} PUBLIC - # TinyUSB Port - ${TOP}/src/portable/chipidea/ci_hs/dcd_ci_hs.c + # TinyUSB: Port0 is chipidea FS, Port1 is chipidea HS + ${TOP}/src/portable/chipidea/$ # BSP ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c diff --git a/hw/bsp/mcx/family.mk b/hw/bsp/mcx/family.mk index 2cd4c2448..2722c2038 100644 --- a/hw/bsp/mcx/family.mk +++ b/hw/bsp/mcx/family.mk @@ -16,21 +16,24 @@ CFLAGS += \ -DCFG_TUSB_MCU=OPT_MCU_MCXN9 \ -DBOARD_TUD_RHPORT=$(PORT) \ -ifeq ($(PORT), 1) - $(info "PORT1 High Speed") - CFLAGS += -DBOARD_TUD_MAX_SPEED=OPT_MODE_HIGH_SPEED -else - $(info "PORT0 Full Speed") -endif - # mcu driver cause following warnings CFLAGS += -Wno-error=unused-parameter -Wno-error=old-style-declaration # All source paths should be relative to the top level. LD_FILE ?= $(SDK_DIR)/devices/$(MCU_VARIANT)/gcc/$(MCU_CORE)_flash.ld +# TinyUSB: Port0 is chipidea FS, Port1 is chipidea HS +ifeq ($(PORT), 1) + $(info "PORT1 High Speed") + CFLAGS += -DBOARD_TUD_MAX_SPEED=OPT_MODE_HIGH_SPEED + SRC_C += src/portable/chipidea/ci_hs/dcd_ci_hs.c +else + $(info "PORT0 Full Speed") + CFLAGS += -DBOARD_TUD_MAX_SPEED=OPT_MODE_FULL_SPEED + SRC_C += src/portable/chipidea/ci_fs/dcd_ci_fs.c +endif + SRC_C += \ - src/portable/chipidea/ci_hs/dcd_ci_hs.c \ $(SDK_DIR)/devices/$(MCU_VARIANT)/system_$(MCU_CORE).c \ $(SDK_DIR)/devices/$(MCU_VARIANT)/drivers/fsl_clock.c \ $(SDK_DIR)/devices/$(MCU_VARIANT)/drivers/fsl_reset.c \ diff --git a/src/common/tusb_mcu.h b/src/common/tusb_mcu.h index f89467e75..485d6168d 100644 --- a/src/common/tusb_mcu.h +++ b/src/common/tusb_mcu.h @@ -79,7 +79,11 @@ #define TUP_RHPORT_HIGHSPEED 1 #elif TU_CHECK_MCU(OPT_MCU_MCXN9) - // NOTE: MCXN943 port 1 use chipidea HS, port 0 use chipidea FS + // USB0 is chipidea FS + #define TUP_USBIP_CHIPIDEA_FS + #define TUP_USBIP_CHIPIDEA_FS_MCX + + // USB1 is chipidea HS #define TUP_USBIP_CHIPIDEA_HS #define TUP_USBIP_EHCI diff --git a/src/portable/chipidea/ci_fs/ci_fs_kinetis.h b/src/portable/chipidea/ci_fs/ci_fs_kinetis.h new file mode 100644 index 000000000..cd21af1c7 --- /dev/null +++ b/src/portable/chipidea/ci_fs/ci_fs_kinetis.h @@ -0,0 +1,51 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2023 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. + */ + +#ifndef _CI_FS_KINETIS_H +#define _CI_FS_KINETIS_H + +#include "fsl_device_registers.h" + +//static const ci_fs_controller_t _ci_controller[] = { +// {.reg_base = USB0_BASE, .irqnum = USB0_IRQn} +//}; + +#define CI_FS_REG(_port) ((ci_fs_regs_t*) USB0_BASE) +#define CI_REG CI_FS_REG(0) + +void dcd_int_enable(uint8_t rhport) +{ + (void) rhport; + NVIC_EnableIRQ(USB0_IRQn); +} + +void dcd_int_disable(uint8_t rhport) +{ + (void) rhport; + NVIC_DisableIRQ(USB0_IRQn); +} + +#endif diff --git a/src/portable/chipidea/ci_fs/ci_fs_mcx.h b/src/portable/chipidea/ci_fs/ci_fs_mcx.h new file mode 100644 index 000000000..3bfcd398e --- /dev/null +++ b/src/portable/chipidea/ci_fs/ci_fs_mcx.h @@ -0,0 +1,47 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2023 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. + */ + +#ifndef _CI_FS_MCX_H +#define _CI_FS_MCX_H + +#include "fsl_device_registers.h" + +#define CI_FS_REG(_port) ((ci_fs_regs_t*) USBFS0_BASE) +#define CI_REG CI_FS_REG(0) + +void dcd_int_enable(uint8_t rhport) +{ + (void) rhport; + NVIC_EnableIRQ(USB0_FS_IRQn); +} + +void dcd_int_disable(uint8_t rhport) +{ + (void) rhport; + NVIC_DisableIRQ(USB0_FS_IRQn); +} + +#endif diff --git a/src/portable/chipidea/ci_fs/ci_fs_type.h b/src/portable/chipidea/ci_fs/ci_fs_type.h new file mode 100644 index 000000000..5a5e53fb0 --- /dev/null +++ b/src/portable/chipidea/ci_fs/ci_fs_type.h @@ -0,0 +1,118 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2023 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. + */ + +#ifndef _CI_FS_TYPE_H +#define _CI_FS_TYPE_H + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +//--------------------------------------------------------------------+ +// +//--------------------------------------------------------------------+ + + +//--------------------------------------------------------------------+ +// +//--------------------------------------------------------------------+ + +// Note: some MCUs can only access these registers in 8-bit mode +// align 4 is used to get rid of reserved fields +#define _va32 volatile TU_ATTR_ALIGNED(4) + +typedef struct { + _va32 uint8_t PER_ID; // [00] Peripheral ID register + _va32 uint8_t ID_COMP; // [04] Peripheral ID complement register + _va32 uint8_t REV; // [08] Peripheral revision register + _va32 uint8_t ADD_INFO; // [0C] Peripheral additional info register + _va32 uint8_t OTG_ISTAT; // [10] OTG Interrupt Status Register + _va32 uint8_t OTG_ICTRL; // [14] OTG Interrupt Control Register + _va32 uint8_t OTG_STAT; // [18] OTG Status Register + _va32 uint8_t OTG_CTRL; // [1C] OTG Control register + uint32_t reserved_20[24]; // [20] + _va32 uint8_t INT_STAT; // [80] Interrupt status register + _va32 uint8_t INT_EN; // [84] Interrupt enable register + _va32 uint8_t ERR_STAT; // [88] Error interrupt status register + _va32 uint8_t ERR_ENB; // [8C] Error interrupt enable register + _va32 uint8_t STAT; // [90] Status register + _va32 uint8_t CTL; // [94] Control register + _va32 uint8_t ADDR; // [98] Address register + _va32 uint8_t BDT_PAGE1; // [9C] BDT page register 1 + _va32 uint8_t FRM_NUML; // [A0] Frame number register + _va32 uint8_t FRM_NUMH; // [A4] Frame number register + _va32 uint8_t TOKEN; // [A8] Token register + _va32 uint8_t SOF_THLD; // [AC] SOF threshold register + _va32 uint8_t BDT_PAGE2; // [B0] BDT page register 2 + _va32 uint8_t BDT_PAGE3; // [B4] BDT page register 3 + + uint32_t reserved_b8; // [B8] + uint32_t reserved_bc; // [BC] + + struct { + _va32 uint8_t CTL; + }EP[16]; // [C0] Endpoint control register + + //----- Following is only found available in NXP Kinetis + _va32 uint8_t USBCTRL; // [100] USB Control register, + _va32 uint8_t OBSERVE; // [104] USB OTG Observe register, + _va32 uint8_t CONTROL; // [108] USB OTG Control register, + _va32 uint8_t USBTRC0; // [10C] USB Transceiver Control Register 0, + uint32_t reserved_110; // [110] + _va32 uint8_t USBFRMADJUST; // [114] Frame Adjust Register, + + //----- Following is only found available in NXP MCX + uint32_t reserved_118[3]; // [118] + _va32 uint8_t KEEP_ALIVE_CTRL; // [124] Keep Alive Mode Control, + _va32 uint8_t KEEP_ALIVE_WKCTRL; // [128] Keep Alive Mode Wakeup Control, + _va32 uint8_t MISCCTRL; // [12C] Miscellaneous Control, + _va32 uint8_t STALL_IL_DIS; // [130] Peripheral Mode Stall Disable for Endpoints[ 7..0] IN + _va32 uint8_t STALL_IH_DIS; // [134] Peripheral Mode Stall Disable for Endpoints[15..8] IN + _va32 uint8_t STALL_OL_DIS; // [138] Peripheral Mode Stall Disable for Endpoints[ 7..0] OUT + _va32 uint8_t STALL_OH_DIS; // [13C] Peripheral Mode Stall Disable for Endpoints[15..8] OUT + _va32 uint8_t CLK_RECOVER_CTRL; // [140] USB Clock Recovery Control, + _va32 uint8_t CLK_RECOVER_IRC_EN; // [144] FIRC Oscillator Enable, + uint32_t reserved_148[3]; // [148] + _va32 uint8_t CLK_RECOVER_INT_EN; // [154] Clock Recovery Combined Interrupt Enable, + uint32_t reserved_158; // [158] + _va32 uint8_t CLK_RECOVER_INT_STATUS; // [15C] Clock Recovery Separated Interrupt Status, +} ci_fs_regs_t; + +TU_VERIFY_STATIC(sizeof(ci_fs_regs_t) == 0x160, "Size is not correct"); + +typedef struct +{ + uint32_t reg_base; + uint32_t irqnum; +} ci_fs_controller_t; + +#ifdef __cplusplus + } +#endif + +#endif diff --git a/src/portable/chipidea/ci_fs/dcd_ci_fs.c b/src/portable/chipidea/ci_fs/dcd_ci_fs.c new file mode 100644 index 000000000..37265df8b --- /dev/null +++ b/src/portable/chipidea/ci_fs/dcd_ci_fs.c @@ -0,0 +1,555 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2020 Koji Kitayama + * + * 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 "tusb_option.h" + +#if CFG_TUD_ENABLED && defined(TUP_USBIP_CHIPIDEA_FS) + +#include "device/dcd.h" +#include "ci_fs_type.h" + +#if defined(TUP_USBIP_CHIPIDEA_FS_KINETIS) + #include "ci_fs_kinetis.h" +#elif defined(TUP_USBIP_CHIPIDEA_FS_MCX) + #include "ci_fs_mcx.h" +#else + #error "MCU is not supported" +#endif + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM DECLARATION +//--------------------------------------------------------------------+ + +enum { + TOK_PID_OUT = 0x1u, + TOK_PID_IN = 0x9u, + TOK_PID_SETUP = 0xDu, +}; + +typedef struct TU_ATTR_PACKED +{ + union { + uint32_t head; + struct { + union { + struct { + uint16_t : 2; + __IO uint16_t tok_pid : 4; + uint16_t data : 1; + __IO uint16_t own : 1; + uint16_t : 8; + }; + struct { + uint16_t : 2; + uint16_t bdt_stall : 1; + uint16_t dts : 1; + uint16_t ninc : 1; + uint16_t keep : 1; + uint16_t : 10; + }; + }; + __IO uint16_t bc : 10; + uint16_t : 6; + }; + }; + uint8_t *addr; +}buffer_descriptor_t; + +TU_VERIFY_STATIC( sizeof(buffer_descriptor_t) == 8, "size is not correct" ); + +typedef struct TU_ATTR_PACKED +{ + union { + uint32_t state; + struct { + uint32_t max_packet_size :11; + uint32_t : 5; + uint32_t odd : 1; + uint32_t :15; + }; + }; + uint16_t length; + uint16_t remaining; +}endpoint_state_t; + +TU_VERIFY_STATIC( sizeof(endpoint_state_t) == 8, "size is not correct" ); + +typedef struct +{ + union { + /* [#EP][OUT,IN][EVEN,ODD] */ + buffer_descriptor_t bdt[16][2][2]; + uint16_t bda[512]; + }; + TU_ATTR_ALIGNED(4) union { + endpoint_state_t endpoint[16][2]; + endpoint_state_t endpoint_unified[16 * 2]; + }; + uint8_t setup_packet[8]; + uint8_t addr; +}dcd_data_t; + +//--------------------------------------------------------------------+ +// INTERNAL OBJECT & FUNCTION DECLARATION +//--------------------------------------------------------------------+ +// BDT(Buffer Descriptor Table) must be 256-byte aligned +CFG_TUSB_MEM_SECTION TU_ATTR_ALIGNED(512) static dcd_data_t _dcd; + +TU_VERIFY_STATIC( sizeof(_dcd.bdt) == 512, "size is not correct" ); + +static void prepare_next_setup_packet(uint8_t rhport) +{ + const unsigned out_odd = _dcd.endpoint[0][0].odd; + const unsigned in_odd = _dcd.endpoint[0][1].odd; + TU_ASSERT(0 == _dcd.bdt[0][0][out_odd].own, ); + + _dcd.bdt[0][0][out_odd].data = 0; + _dcd.bdt[0][0][out_odd ^ 1].data = 1; + _dcd.bdt[0][1][in_odd].data = 1; + _dcd.bdt[0][1][in_odd ^ 1].data = 0; + dcd_edpt_xfer(rhport, tu_edpt_addr(0, TUSB_DIR_OUT), + _dcd.setup_packet, sizeof(_dcd.setup_packet)); +} + +static void process_stall(uint8_t rhport) +{ + for (int i = 0; i < 16; ++i) { + uint32_t const ep_ctl = CI_REG->EP[i].CTL; + + if (ep_ctl & USB_ENDPT_EPSTALL_MASK) { + // prepare next setup if endpoint0 + if ( i == 0 ) prepare_next_setup_packet(rhport); + + // clear stall bit + CI_REG->EP[i].CTL = ep_ctl & ~USB_ENDPT_EPSTALL_MASK; + } + } +} + +static void process_tokdne(uint8_t rhport) +{ + const unsigned s = CI_REG->STAT; + CI_REG->INT_STAT = USB_ISTAT_TOKDNE_MASK; /* fetch the next token if received */ + + uint8_t const epnum = (s >> USB_STAT_ENDP_SHIFT); + uint8_t const dir = (s & USB_STAT_TX_MASK) >> USB_STAT_TX_SHIFT; + unsigned const odd = (s & USB_STAT_ODD_MASK) ? 1 : 0; + + buffer_descriptor_t *bd = (buffer_descriptor_t *)&_dcd.bda[s]; + endpoint_state_t *ep = &_dcd.endpoint_unified[s >> 3]; + + /* fetch pid before discarded by the next steps */ + const unsigned pid = bd->tok_pid; + + /* reset values for a next transfer */ + bd->bdt_stall = 0; + bd->dts = 1; + bd->ninc = 0; + bd->keep = 0; + /* update the odd variable to prepare for the next transfer */ + ep->odd = odd ^ 1; + if (pid == TOK_PID_SETUP) { + dcd_event_setup_received(rhport, bd->addr, true); + CI_REG->CTL &= ~USB_CTL_TXSUSPENDTOKENBUSY_MASK; + return; + } + + const unsigned bc = bd->bc; + const unsigned remaining = ep->remaining - bc; + if (remaining && bc == ep->max_packet_size) { + /* continue the transferring consecutive data */ + ep->remaining = remaining; + const int next_remaining = remaining - ep->max_packet_size; + if (next_remaining > 0) { + /* prepare to the after next transfer */ + bd->addr += ep->max_packet_size * 2; + bd->bc = next_remaining > ep->max_packet_size ? ep->max_packet_size: next_remaining; + __DSB(); + bd->own = 1; /* the own bit must set after addr */ + } + return; + } + const unsigned length = ep->length; + dcd_event_xfer_complete(rhport, + tu_edpt_addr(epnum, dir), + length - remaining, XFER_RESULT_SUCCESS, true); + if (0 == epnum && 0 == length) { + /* After completion a ZLP of control transfer, + * it prepares for the next steup transfer. */ + if (_dcd.addr) { + /* When the transfer was the SetAddress, + * the device address should be updated here. */ + CI_REG->ADDR = _dcd.addr; + _dcd.addr = 0; + } + prepare_next_setup_packet(rhport); + } +} + +static void process_bus_reset(uint8_t rhport) +{ + CI_REG->USBCTRL &= ~USB_USBCTRL_SUSP_MASK; + CI_REG->CTL |= USB_CTL_ODDRST_MASK; + CI_REG->ADDR = 0; + CI_REG->INT_EN = USB_INTEN_USBRSTEN_MASK | USB_INTEN_TOKDNEEN_MASK | USB_INTEN_SLEEPEN_MASK | + USB_INTEN_ERROREN_MASK | USB_INTEN_STALLEN_MASK; + + CI_REG->EP[0].CTL = USB_ENDPT_EPHSHK_MASK | USB_ENDPT_EPRXEN_MASK | USB_ENDPT_EPTXEN_MASK; + for (unsigned i = 1; i < 16; ++i) { + CI_REG->EP[i].CTL = 0; + } + buffer_descriptor_t *bd = _dcd.bdt[0][0]; + for (unsigned i = 0; i < sizeof(_dcd.bdt)/sizeof(*bd); ++i, ++bd) { + bd->head = 0; + } + const endpoint_state_t ep0 = { + .max_packet_size = CFG_TUD_ENDPOINT0_SIZE, + .odd = 0, + .length = 0, + .remaining = 0, + }; + _dcd.endpoint[0][0] = ep0; + _dcd.endpoint[0][1] = ep0; + tu_memclr(_dcd.endpoint[1], sizeof(_dcd.endpoint) - sizeof(_dcd.endpoint[0])); + _dcd.addr = 0; + prepare_next_setup_packet(rhport); + CI_REG->CTL &= ~USB_CTL_ODDRST_MASK; + dcd_event_bus_reset(rhport, TUSB_SPEED_FULL, true); +} + +static void process_bus_sleep(uint8_t rhport) +{ + // Enable resume & disable suspend interrupt + const unsigned inten = CI_REG->INT_EN; + + CI_REG->INT_EN = (inten & ~USB_INTEN_SLEEPEN_MASK) | USB_INTEN_RESUMEEN_MASK; + CI_REG->USBTRC0 |= USB_USBTRC0_USBRESMEN_MASK; + CI_REG->USBCTRL |= USB_USBCTRL_SUSP_MASK; + + dcd_event_bus_signal(rhport, DCD_EVENT_SUSPEND, true); +} + +static void process_bus_resume(uint8_t rhport) +{ + // Enable suspend & disable resume interrupt + const unsigned inten = CI_REG->INT_EN; + + CI_REG->USBCTRL &= ~USB_USBCTRL_SUSP_MASK; // will also clear USB_USBTRC0_USB_RESUME_INT_MASK + CI_REG->USBTRC0 &= ~USB_USBTRC0_USBRESMEN_MASK; + CI_REG->INT_EN = (inten & ~USB_INTEN_RESUMEEN_MASK) | USB_INTEN_SLEEPEN_MASK; + + dcd_event_bus_signal(rhport, DCD_EVENT_RESUME, true); +} + +/*------------------------------------------------------------------*/ +/* Device API + *------------------------------------------------------------------*/ +void dcd_init(uint8_t rhport) +{ + (void) rhport; + + CI_REG->USBTRC0 |= USB_USBTRC0_USBRESET_MASK; + while (CI_REG->USBTRC0 & USB_USBTRC0_USBRESET_MASK); + + tu_memclr(&_dcd, sizeof(_dcd)); + CI_REG->USBTRC0 |= TU_BIT(6); /* software must set this bit to 1 */ + CI_REG->BDT_PAGE1 = (uint8_t)((uintptr_t)_dcd.bdt >> 8); + CI_REG->BDT_PAGE2 = (uint8_t)((uintptr_t)_dcd.bdt >> 16); + CI_REG->BDT_PAGE3 = (uint8_t)((uintptr_t)_dcd.bdt >> 24); + + CI_REG->INT_EN = USB_INTEN_USBRSTEN_MASK; + + dcd_connect(rhport); + // NVIC_ClearPendingIRQ(USB0_IRQn); +} + +void dcd_set_address(uint8_t rhport, uint8_t dev_addr) +{ + _dcd.addr = dev_addr & 0x7F; + /* Response with status first before changing device address */ + dcd_edpt_xfer(rhport, tu_edpt_addr(0, TUSB_DIR_IN), NULL, 0); +} + +void dcd_remote_wakeup(uint8_t rhport) +{ + (void) rhport; + + CI_REG->CTL |= USB_CTL_RESUME_MASK; + + unsigned cnt = SystemCoreClock / 1000; + while (cnt--) __NOP(); + + CI_REG->CTL &= ~USB_CTL_RESUME_MASK; +} + +void dcd_connect(uint8_t rhport) +{ + (void) rhport; + CI_REG->USBCTRL = 0; + CI_REG->CONTROL |= USB_CONTROL_DPPULLUPNONOTG_MASK; + CI_REG->CTL |= USB_CTL_USBENSOFEN_MASK; +} + +void dcd_disconnect(uint8_t rhport) +{ + (void) rhport; + CI_REG->CTL = 0; + CI_REG->CONTROL &= ~USB_CONTROL_DPPULLUPNONOTG_MASK; +} + +void dcd_sof_enable(uint8_t rhport, bool en) +{ + (void) rhport; + (void) en; + + // TODO implement later +} + +//--------------------------------------------------------------------+ +// Endpoint API +//--------------------------------------------------------------------+ +bool dcd_edpt_open(uint8_t rhport, tusb_desc_endpoint_t const * ep_desc) +{ + (void) rhport; + + const unsigned ep_addr = ep_desc->bEndpointAddress; + const unsigned epn = tu_edpt_number(ep_addr); + const unsigned dir = tu_edpt_dir(ep_addr); + const unsigned xfer = ep_desc->bmAttributes.xfer; + endpoint_state_t *ep = &_dcd.endpoint[epn][dir]; + const unsigned odd = ep->odd; + buffer_descriptor_t *bd = _dcd.bdt[epn][dir]; + + /* No support for control transfer */ + TU_ASSERT(epn && (xfer != TUSB_XFER_CONTROL)); + + ep->max_packet_size = tu_edpt_packet_size(ep_desc); + unsigned val = USB_ENDPT_EPCTLDIS_MASK; + val |= (xfer != TUSB_XFER_ISOCHRONOUS) ? USB_ENDPT_EPHSHK_MASK: 0; + val |= dir ? USB_ENDPT_EPTXEN_MASK : USB_ENDPT_EPRXEN_MASK; + CI_REG->EP[epn].CTL |= val; + + if (xfer != TUSB_XFER_ISOCHRONOUS) { + bd[odd].dts = 1; + bd[odd].data = 0; + bd[odd ^ 1].dts = 1; + bd[odd ^ 1].data = 1; + } + + return true; +} + +void dcd_edpt_close_all(uint8_t rhport) +{ + dcd_int_disable(rhport); + + for (unsigned i = 1; i < 16; ++i) { + CI_REG->EP[i].CTL = 0; + } + + dcd_int_enable(rhport); + + buffer_descriptor_t *bd = _dcd.bdt[1][0]; + for (unsigned i = 2; i < sizeof(_dcd.bdt)/sizeof(*bd); ++i, ++bd) { + bd->head = 0; + } + + endpoint_state_t *ep = &_dcd.endpoint[1][0]; + for (unsigned i = 2; i < sizeof(_dcd.endpoint)/sizeof(*ep); ++i, ++ep) { + /* Clear except the odd */ + ep->max_packet_size = 0; + ep->length = 0; + ep->remaining = 0; + } +} + +void dcd_edpt_close(uint8_t rhport, uint8_t ep_addr) +{ + const unsigned epn = tu_edpt_number(ep_addr); + const unsigned dir = tu_edpt_dir(ep_addr); + endpoint_state_t *ep = &_dcd.endpoint[epn][dir]; + buffer_descriptor_t *bd = _dcd.bdt[epn][dir]; + const unsigned msk = dir ? USB_ENDPT_EPTXEN_MASK : USB_ENDPT_EPRXEN_MASK; + + dcd_int_disable(rhport); + + CI_REG->EP[epn].CTL &= ~msk; + ep->max_packet_size = 0; + ep->length = 0; + ep->remaining = 0; + bd[0].head = 0; + bd[1].head = 0; + + dcd_int_enable(rhport); +} + +bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer, uint16_t total_bytes) +{ + const unsigned epn = tu_edpt_number(ep_addr); + const unsigned dir = tu_edpt_dir(ep_addr); + endpoint_state_t *ep = &_dcd.endpoint[epn][dir]; + buffer_descriptor_t *bd = &_dcd.bdt[epn][dir][ep->odd]; + TU_ASSERT(0 == bd->own); + + dcd_int_disable(rhport); + + ep->length = total_bytes; + ep->remaining = total_bytes; + + const unsigned mps = ep->max_packet_size; + if (total_bytes > mps) { + buffer_descriptor_t *next = ep->odd ? bd - 1: bd + 1; + /* When total_bytes is greater than the max packet size, + * it prepares to the next transfer to avoid NAK in advance. */ + next->bc = total_bytes >= 2 * mps ? mps: total_bytes - mps; + next->addr = buffer + mps; + next->own = 1; + } + bd->bc = total_bytes >= mps ? mps: total_bytes; + bd->addr = buffer; + __DSB(); + bd->own = 1; /* This bit must be set last */ + + dcd_int_enable(rhport); + + return true; +} + +void dcd_edpt_stall(uint8_t rhport, uint8_t ep_addr) +{ + (void) rhport; + const unsigned epn = tu_edpt_number(ep_addr); + + if (0 == epn) { + CI_REG->EP[epn].CTL |= USB_ENDPT_EPSTALL_MASK; + } else { + const unsigned dir = tu_edpt_dir(ep_addr); + const unsigned odd = _dcd.endpoint[epn][dir].odd; + buffer_descriptor_t *bd = &_dcd.bdt[epn][dir][odd]; + TU_ASSERT(0 == bd->own,); + + dcd_int_disable(rhport); + + bd->bdt_stall = 1; + __DSB(); + bd->own = 1; /* This bit must be set last */ + + dcd_int_enable(rhport); + } +} + +void dcd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr) +{ + const unsigned epn = tu_edpt_number(ep_addr); + TU_VERIFY(epn,); + const unsigned dir = tu_edpt_dir(ep_addr); + const unsigned odd = _dcd.endpoint[epn][dir].odd; + buffer_descriptor_t *bd = _dcd.bdt[epn][dir]; + TU_VERIFY(bd[odd].own,); + + dcd_int_disable(rhport); + + bd[odd].own = 0; + __DSB(); + + // clear stall + bd[odd].bdt_stall = 0; + + // Reset data toggle + bd[odd ].data = 0; + bd[odd ^ 1].data = 1; + + // We already cleared this in ISR, but just clear it here to be safe + const uint32_t ep_ctl = CI_REG->EP[epn].CTL; + if (ep_ctl & USB_ENDPT_EPSTALL_MASK) { + CI_REG->EP[epn].CTL = ep_ctl & ~USB_ENDPT_EPSTALL_MASK; + } + + dcd_int_enable(rhport); +} + +//--------------------------------------------------------------------+ +// ISR +//--------------------------------------------------------------------+ +void dcd_int_handler(uint8_t rhport) +{ + uint32_t is = CI_REG->INT_STAT; + uint32_t msk = CI_REG->INT_EN; + + // clear non-enabled interrupts + CI_REG->INT_STAT = is & ~msk; + is &= msk; + + if (is & USB_ISTAT_ERROR_MASK) { + /* TODO: */ + uint32_t es = CI_REG->ERR_STAT; + CI_REG->ERR_STAT = es; + CI_REG->INT_STAT = is; /* discard any pending events */ + } + + if (is & USB_ISTAT_USBRST_MASK) { + CI_REG->INT_STAT = is; /* discard any pending events */ + process_bus_reset(rhport); + } + + if (is & USB_ISTAT_SLEEP_MASK) { + // TU_LOG2("Suspend: "); TU_LOG2_HEX(is); + + // Note Host usually has extra delay after bus reset (without SOF), which could falsely + // detected as Sleep event. Though usbd has debouncing logic so we are good + CI_REG->INT_STAT = USB_ISTAT_SLEEP_MASK; + process_bus_sleep(rhport); + } + +#if 0 // ISTAT_RESUME never trigger, probably for host mode ? + if (is & USB_ISTAT_RESUME_MASK) { + // TU_LOG2("ISTAT Resume: "); TU_LOG2_HEX(is); + KHCI->ISTAT = USB_ISTAT_RESUME_MASK; + process_bus_resume(rhport); + } +#endif + + if (CI_REG->USBTRC0 & USB_USBTRC0_USB_RESUME_INT_MASK) { + // TU_LOG2("USBTRC0 Resume: "); TU_LOG2_HEX(is); TU_LOG2_HEX(KHCI->USBTRC0); + process_bus_resume(rhport); + } + + if (is & USB_ISTAT_SOFTOK_MASK) { + CI_REG->INT_STAT = USB_ISTAT_SOFTOK_MASK; + dcd_event_bus_signal(rhport, DCD_EVENT_SOF, true); + } + + if (is & USB_ISTAT_STALL_MASK) { + CI_REG->INT_STAT = USB_ISTAT_STALL_MASK; + process_stall(rhport); + } + + if (is & USB_ISTAT_TOKDNE_MASK) { + process_tokdne(rhport); + } +} + +#endif