From dcadbf3364778814c8a0e7e73481d12e8687f1bd Mon Sep 17 00:00:00 2001 From: Rafael Silva Date: Tue, 8 Mar 2022 16:05:29 +0000 Subject: rename renesas driver to link link was chosen according to the name for the usb core on datasheets, LINK core Signed-off-by: Rafael Silva --- src/portable/renesas/link/dcd_link.c | 915 +++++++++++++++++++++++++++++++++++ src/portable/renesas/link/hcd_link.c | 875 +++++++++++++++++++++++++++++++++ src/portable/renesas/usba/dcd_usba.c | 915 ----------------------------------- src/portable/renesas/usba/hcd_usba.c | 875 --------------------------------- 4 files changed, 1790 insertions(+), 1790 deletions(-) create mode 100644 src/portable/renesas/link/dcd_link.c create mode 100644 src/portable/renesas/link/hcd_link.c delete mode 100644 src/portable/renesas/usba/dcd_usba.c delete mode 100644 src/portable/renesas/usba/hcd_usba.c (limited to 'src') diff --git a/src/portable/renesas/link/dcd_link.c b/src/portable/renesas/link/dcd_link.c new file mode 100644 index 000000000..fa87c9f4d --- /dev/null +++ b/src/portable/renesas/link/dcd_link.c @@ -0,0 +1,915 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2020 Koji Kitayama + * Portions copyrighted (c) 2021 Roland Winistoerfer + * + * 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" + +// Since TinyUSB doesn't use SOF for now, and this interrupt too often (1ms interval) +// We disable SOF for now until needed later on +#define USE_SOF 0 + +#if CFG_TUD_ENABLED && ( CFG_TUSB_MCU == OPT_MCU_RX63X || \ + CFG_TUSB_MCU == OPT_MCU_RX65X || \ + CFG_TUSB_MCU == OPT_MCU_RX72N ) +#include "device/dcd.h" +#include "iodefine.h" + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM DECLARATION +//--------------------------------------------------------------------+ +#define SYSTEM_PRCR_PRC1 (1<<1) +#define SYSTEM_PRCR_PRKEY (0xA5u<<8) + +#define USB_FIFOSEL_TX ((uint16_t)(1u<<5)) +#define USB_FIFOSEL_BIGEND ((uint16_t)(1u<<8)) +#define USB_FIFOSEL_MBW_8 ((uint16_t)(0u<<10)) +#define USB_FIFOSEL_MBW_16 ((uint16_t)(1u<<10)) +#define USB_IS0_CTSQ ((uint16_t)(7u)) +#define USB_IS0_DVSQ ((uint16_t)(7u<<4)) +#define USB_IS0_VALID ((uint16_t)(1u<<3)) +#define USB_IS0_BRDY ((uint16_t)(1u<<8)) +#define USB_IS0_NRDY ((uint16_t)(1u<<9)) +#define USB_IS0_BEMP ((uint16_t)(1u<<10)) +#define USB_IS0_CTRT ((uint16_t)(1u<<11)) +#define USB_IS0_DVST ((uint16_t)(1u<<12)) +#define USB_IS0_SOFR ((uint16_t)(1u<<13)) +#define USB_IS0_RESM ((uint16_t)(1u<<14)) +#define USB_IS0_VBINT ((uint16_t)(1u<<15)) +#define USB_IS1_SACK ((uint16_t)(1u<<4)) +#define USB_IS1_SIGN ((uint16_t)(1u<<5)) +#define USB_IS1_EOFERR ((uint16_t)(1u<<6)) +#define USB_IS1_ATTCH ((uint16_t)(1u<<11)) +#define USB_IS1_DTCH ((uint16_t)(1u<<12)) +#define USB_IS1_BCHG ((uint16_t)(1u<<14)) +#define USB_IS1_OVRCR ((uint16_t)(1u<<15)) + +#define USB_IS0_CTSQ_MSK (7u) +#define USB_IS0_CTSQ_SETUP (1u) +#define USB_IS0_DVSQ_DEF (1u<<4) +#define USB_IS0_DVSQ_ADDR (2u<<4) +#define USB_IS0_DVSQ_SUSP0 (4u<<4) +#define USB_IS0_DVSQ_SUSP1 (5u<<4) +#define USB_IS0_DVSQ_SUSP2 (6u<<4) +#define USB_IS0_DVSQ_SUSP3 (7u<<4) + +#define USB_PIPECTR_PID_NAK (0u) +#define USB_PIPECTR_PID_BUF (1u) +#define USB_PIPECTR_PID_STALL (2u) +#define USB_PIPECTR_CCPL (1u<<2) +#define USB_PIPECTR_SQMON (1u<<6) +#define USB_PIPECTR_SQCLR (1u<<8) +#define USB_PIPECTR_ACLRM (1u<<9) +#define USB_PIPECTR_INBUFM (1u<<14) +#define USB_PIPECTR_BSTS (1u<<15) + +#define USB_FIFOCTR_DTLN (0x1FF) +#define USB_FIFOCTR_FRDY (1u<<13) +#define USB_FIFOCTR_BCLR (1u<<14) +#define USB_FIFOCTR_BVAL (1u<<15) + +#define USB_PIPECFG_SHTNAK (1u<<7) +#define USB_PIPECFG_DBLB (1u<<9) +#define USB_PIPECFG_BULK (1u<<14) +#define USB_PIPECFG_ISO (3u<<14) +#define USB_PIPECFG_INT (2u<<14) + +#define FIFO_REQ_CLR (1u) +#define FIFO_COMPLETE (1u<<1) + +// Start of definition of packed structs (used by the CCRX toolchain) +TU_ATTR_PACKED_BEGIN +TU_ATTR_BIT_FIELD_ORDER_BEGIN + +typedef struct { + union { + struct { + uint16_t : 8; + uint16_t TRCLR: 1; + uint16_t TRENB: 1; + uint16_t : 0; + }; + uint16_t TRE; + }; + uint16_t TRN; +} reg_pipetre_t; + +typedef union { + struct { + volatile uint16_t u8: 8; + volatile uint16_t : 0; + }; + volatile uint16_t u16; +} hw_fifo_t; + +typedef struct TU_ATTR_PACKED +{ + void *buf; /* the start address of a transfer data buffer */ + uint16_t length; /* the number of bytes in the buffer */ + uint16_t remaining; /* the number of bytes remaining in the buffer */ + struct { + uint32_t ep : 8; /* an assigned endpoint address */ + uint32_t ff : 1; /* `buf` is TU_FUFO or POD */ + uint32_t : 0; + }; +} pipe_state_t; + +TU_ATTR_PACKED_END // End of definition of packed structs (used by the CCRX toolchain) +TU_ATTR_BIT_FIELD_ORDER_END + +typedef struct +{ + pipe_state_t pipe[10]; + uint8_t ep[2][16]; /* a lookup table for a pipe index from an endpoint address */ +} dcd_data_t; + +//--------------------------------------------------------------------+ +// INTERNAL OBJECT & FUNCTION DECLARATION +//--------------------------------------------------------------------+ +static dcd_data_t _dcd; + +static uint32_t disable_interrupt(void) +{ + uint32_t pswi; +#if defined(__CCRX__) + pswi = get_psw() & 0x010000; + clrpsw_i(); +#else + pswi = __builtin_rx_mvfc(0) & 0x010000; + __builtin_rx_clrpsw('I'); +#endif + return pswi; +} + +static void enable_interrupt(uint32_t pswi) +{ +#if defined(__CCRX__) + set_psw(get_psw() | pswi); +#else + __builtin_rx_mvtc(0, __builtin_rx_mvfc(0) | pswi); +#endif +} + +static unsigned find_pipe(unsigned xfer) +{ + switch (xfer) { + case TUSB_XFER_ISOCHRONOUS: + for (int i = 1; i <= 2; ++i) { + if (0 == _dcd.pipe[i].ep) return i; + } + break; + case TUSB_XFER_BULK: + for (int i = 3; i <= 5; ++i) { + if (0 == _dcd.pipe[i].ep) return i; + } + for (int i = 1; i <= 1; ++i) { + if (0 == _dcd.pipe[i].ep) return i; + } + break; + case TUSB_XFER_INTERRUPT: + for (int i = 6; i <= 9; ++i) { + if (0 == _dcd.pipe[i].ep) return i; + } + break; + default: + /* No support for control transfer */ + break; + } + return 0; +} + +static volatile uint16_t* get_pipectr(unsigned num) +{ + volatile uint16_t *ctr = NULL; + if (num) { + ctr = (volatile uint16_t*)&USB0.PIPE1CTR.WORD; + ctr += num - 1; + } else { + ctr = (volatile uint16_t*)&USB0.DCPCTR.WORD; + } + return ctr; +} + +static volatile reg_pipetre_t* get_pipetre(unsigned num) +{ + volatile reg_pipetre_t* tre = NULL; + if ((1 <= num) && (num <= 5)) { + tre = (volatile reg_pipetre_t*)&USB0.PIPE1TRE.WORD; + tre += num - 1; + } + return tre; +} + +static volatile uint16_t* ep_addr_to_pipectr(uint8_t rhport, unsigned ep_addr) +{ + (void)rhport; + volatile uint16_t *ctr = NULL; + const unsigned epn = tu_edpt_number(ep_addr); + if (epn) { + const unsigned dir = tu_edpt_dir(ep_addr); + const unsigned num = _dcd.ep[dir][epn]; + if (num) { + ctr = (volatile uint16_t*)&USB0.PIPE1CTR.WORD; + ctr += num - 1; + } + } else { + ctr = (volatile uint16_t*)&USB0.DCPCTR.WORD; + } + return ctr; +} + +static unsigned edpt0_max_packet_size(void) +{ + return USB0.DCPMAXP.BIT.MXPS; +} + +static unsigned edpt_max_packet_size(unsigned num) +{ + USB0.PIPESEL.WORD = num; + return USB0.PIPEMAXP.WORD; +} + +static inline void pipe_wait_for_ready(unsigned num) +{ + while (USB0.D0FIFOSEL.BIT.CURPIPE != num) ; + while (!USB0.D0FIFOCTR.BIT.FRDY) ; +} + +static void pipe_write_packet(void *buf, volatile void *fifo, unsigned len) +{ + volatile hw_fifo_t *reg = (volatile hw_fifo_t*) fifo; + uintptr_t addr = (uintptr_t)buf; + while (len >= 2) { + reg->u16 = *(const uint16_t *)addr; + addr += 2; + len -= 2; + } + if (len) { + reg->u8 = *(const uint8_t *)addr; + ++addr; + } +} + +static void pipe_read_packet(void *buf, volatile void *fifo, unsigned len) +{ + uint8_t *p = (uint8_t*)buf; + volatile uint8_t *reg = (volatile uint8_t*)fifo; /* byte access is always at base register address */ + while (len--) *p++ = *reg; +} + +static void pipe_read_write_packet_ff(tu_fifo_t *f, volatile void *fifo, unsigned len, unsigned dir) +{ + static const struct { + void (*tu_fifo_get_info)(tu_fifo_t *f, tu_fifo_buffer_info_t *info); + void (*tu_fifo_advance)(tu_fifo_t *f, uint16_t n); + void (*pipe_read_write)(void *buf, volatile void *fifo, unsigned len); + } ops[] = { + /* OUT */ {tu_fifo_get_write_info,tu_fifo_advance_write_pointer,pipe_read_packet}, + /* IN */ {tu_fifo_get_read_info, tu_fifo_advance_read_pointer, pipe_write_packet}, + }; + tu_fifo_buffer_info_t info; + ops[dir].tu_fifo_get_info(f, &info); + unsigned total_len = len; + len = TU_MIN(total_len, info.len_lin); + ops[dir].pipe_read_write(info.ptr_lin, fifo, len); + unsigned rem = total_len - len; + if (rem) { + len = TU_MIN(rem, info.len_wrap); + ops[dir].pipe_read_write(info.ptr_wrap, fifo, len); + rem -= len; + } + ops[dir].tu_fifo_advance(f, total_len - rem); +} + +static bool pipe0_xfer_in(void) +{ + pipe_state_t *pipe = &_dcd.pipe[0]; + const unsigned rem = pipe->remaining; + if (!rem) { + pipe->buf = NULL; + return true; + } + const unsigned mps = edpt0_max_packet_size(); + const unsigned len = TU_MIN(mps, rem); + void *buf = pipe->buf; + if (len) { + if (pipe->ff) { + pipe_read_write_packet_ff((tu_fifo_t*)buf, (volatile void*)&USB0.CFIFO.WORD, len, TUSB_DIR_IN); + } else { + pipe_write_packet(buf, (volatile void*)&USB0.CFIFO.WORD, len); + pipe->buf = (uint8_t*)buf + len; + } + } + if (len < mps) USB0.CFIFOCTR.WORD = USB_FIFOCTR_BVAL; + pipe->remaining = rem - len; + return false; +} + +static bool pipe0_xfer_out(void) +{ + pipe_state_t *pipe = &_dcd.pipe[0]; + const unsigned rem = pipe->remaining; + + const unsigned mps = edpt0_max_packet_size(); + const unsigned vld = USB0.CFIFOCTR.BIT.DTLN; + const unsigned len = TU_MIN(TU_MIN(rem, mps), vld); + void *buf = pipe->buf; + if (len) { + if (pipe->ff) { + pipe_read_write_packet_ff((tu_fifo_t*)buf, (volatile void*)&USB0.CFIFO.WORD, len, TUSB_DIR_OUT); + } else { + pipe_read_packet(buf, (volatile void*)&USB0.CFIFO.WORD, len); + pipe->buf = (uint8_t*)buf + len; + } + } + if (len < mps) USB0.CFIFOCTR.WORD = USB_FIFOCTR_BCLR; + pipe->remaining = rem - len; + if ((len < mps) || (rem == len)) { + pipe->buf = NULL; + return true; + } + return false; +} + +static bool pipe_xfer_in(unsigned num) +{ + pipe_state_t *pipe = &_dcd.pipe[num]; + const unsigned rem = pipe->remaining; + + if (!rem) { + pipe->buf = NULL; + return true; + } + + USB0.D0FIFOSEL.WORD = num | USB_FIFOSEL_MBW_16 | (TU_BYTE_ORDER == TU_BIG_ENDIAN ? USB_FIFOSEL_BIGEND : 0); + const unsigned mps = edpt_max_packet_size(num); + pipe_wait_for_ready(num); + const unsigned len = TU_MIN(rem, mps); + void *buf = pipe->buf; + if (len) { + if (pipe->ff) { + pipe_read_write_packet_ff((tu_fifo_t*)buf, (volatile void*)&USB0.D0FIFO.WORD, len, TUSB_DIR_IN); + } else { + pipe_write_packet(buf, (volatile void*)&USB0.D0FIFO.WORD, len); + pipe->buf = (uint8_t*)buf + len; + } + } + if (len < mps) USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BVAL; + USB0.D0FIFOSEL.WORD = 0; + while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ + pipe->remaining = rem - len; + return false; +} + +static bool pipe_xfer_out(unsigned num) +{ + pipe_state_t *pipe = &_dcd.pipe[num]; + const unsigned rem = pipe->remaining; + + USB0.D0FIFOSEL.WORD = num | USB_FIFOSEL_MBW_8; + const unsigned mps = edpt_max_packet_size(num); + pipe_wait_for_ready(num); + const unsigned vld = USB0.D0FIFOCTR.BIT.DTLN; + const unsigned len = TU_MIN(TU_MIN(rem, mps), vld); + void *buf = pipe->buf; + if (len) { + if (pipe->ff) { + pipe_read_write_packet_ff((tu_fifo_t*)buf, (volatile void*)&USB0.D0FIFO.WORD, len, TUSB_DIR_OUT); + } else { + pipe_read_packet(buf, (volatile void*)&USB0.D0FIFO.WORD, len); + pipe->buf = (uint8_t*)buf + len; + } + } + if (len < mps) USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BCLR; + USB0.D0FIFOSEL.WORD = 0; + while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ + pipe->remaining = rem - len; + if ((len < mps) || (rem == len)) { + pipe->buf = NULL; + return NULL != buf; + } + return false; +} + +static void process_setup_packet(uint8_t rhport) +{ + uint16_t setup_packet[4]; + if (0 == (USB0.INTSTS0.WORD & USB_IS0_VALID)) return; + USB0.CFIFOCTR.WORD = USB_FIFOCTR_BCLR; + setup_packet[0] = tu_le16toh(USB0.USBREQ.WORD); + setup_packet[1] = USB0.USBVAL; + setup_packet[2] = USB0.USBINDX; + setup_packet[3] = USB0.USBLENG; + USB0.INTSTS0.WORD = ~USB_IS0_VALID; + dcd_event_setup_received(rhport, (const uint8_t*)&setup_packet[0], true); +} + +static void process_status_completion(uint8_t rhport) +{ + uint8_t ep_addr; + /* Check the data stage direction */ + if (USB0.CFIFOSEL.WORD & USB_FIFOSEL_TX) { + /* IN transfer. */ + ep_addr = tu_edpt_addr(0, TUSB_DIR_IN); + } else { + /* OUT transfer. */ + ep_addr = tu_edpt_addr(0, TUSB_DIR_OUT); + } + dcd_event_xfer_complete(rhport, ep_addr, 0, XFER_RESULT_SUCCESS, true); +} + +static bool process_pipe0_xfer(int buffer_type, uint8_t ep_addr, void* buffer, uint16_t total_bytes) +{ + /* configure fifo direction and access unit settings */ + if (ep_addr) { /* IN, 2 bytes */ + USB0.CFIFOSEL.WORD = USB_FIFOSEL_TX | USB_FIFOSEL_MBW_16 | (TU_BYTE_ORDER == TU_BIG_ENDIAN ? USB_FIFOSEL_BIGEND : 0); + while (!(USB0.CFIFOSEL.WORD & USB_FIFOSEL_TX)) ; + } else { /* OUT, a byte */ + USB0.CFIFOSEL.WORD = USB_FIFOSEL_MBW_8; + while (USB0.CFIFOSEL.WORD & USB_FIFOSEL_TX) ; + } + + pipe_state_t *pipe = &_dcd.pipe[0]; + pipe->ff = buffer_type; + pipe->length = total_bytes; + pipe->remaining = total_bytes; + if (total_bytes) { + pipe->buf = buffer; + if (ep_addr) { /* IN */ + TU_ASSERT(USB0.DCPCTR.BIT.BSTS && (USB0.USBREQ.WORD & 0x80)); + pipe0_xfer_in(); + } + USB0.DCPCTR.WORD = USB_PIPECTR_PID_BUF; + } else { + /* ZLP */ + pipe->buf = NULL; + USB0.DCPCTR.WORD = USB_PIPECTR_CCPL | USB_PIPECTR_PID_BUF; + } + return true; +} + +static bool process_pipe_xfer(int buffer_type, uint8_t ep_addr, void* buffer, uint16_t total_bytes) +{ + const unsigned epn = tu_edpt_number(ep_addr); + const unsigned dir = tu_edpt_dir(ep_addr); + const unsigned num = _dcd.ep[dir][epn]; + + TU_ASSERT(num); + + pipe_state_t *pipe = &_dcd.pipe[num]; + pipe->ff = buffer_type; + pipe->buf = buffer; + pipe->length = total_bytes; + pipe->remaining = total_bytes; + if (dir) { /* IN */ + if (total_bytes) { + pipe_xfer_in(num); + } else { /* ZLP */ + USB0.D0FIFOSEL.WORD = num; + pipe_wait_for_ready(num); + USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BVAL; + USB0.D0FIFOSEL.WORD = 0; + while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ + } + } else { +#if defined(__CCRX__) + __evenaccess volatile reg_pipetre_t *pt = get_pipetre(num); +#else + volatile reg_pipetre_t *pt = get_pipetre(num); +#endif + if (pt) { + const unsigned mps = edpt_max_packet_size(num); + volatile uint16_t *ctr = get_pipectr(num); + if (*ctr & 0x3) *ctr = USB_PIPECTR_PID_NAK; + pt->TRE = TU_BIT(8); + pt->TRN = (total_bytes + mps - 1) / mps; + pt->TRENB = 1; + *ctr = USB_PIPECTR_PID_BUF; + } + } + // TU_LOG1("X %x %d %d\r\n", ep_addr, total_bytes, buffer_type); + return true; +} + +static bool process_edpt_xfer(int buffer_type, uint8_t ep_addr, void* buffer, uint16_t total_bytes) +{ + const unsigned epn = tu_edpt_number(ep_addr); + if (0 == epn) { + return process_pipe0_xfer(buffer_type, ep_addr, buffer, total_bytes); + } else { + return process_pipe_xfer(buffer_type, ep_addr, buffer, total_bytes); + } +} + +static void process_pipe0_bemp(uint8_t rhport) +{ + bool completed = pipe0_xfer_in(); + if (completed) { + pipe_state_t *pipe = &_dcd.pipe[0]; + dcd_event_xfer_complete(rhport, tu_edpt_addr(0, TUSB_DIR_IN), + pipe->length, XFER_RESULT_SUCCESS, true); + } +} + +static void process_pipe_brdy(uint8_t rhport, unsigned num) +{ + pipe_state_t *pipe = &_dcd.pipe[num]; + const unsigned dir = tu_edpt_dir(pipe->ep); + bool completed; + + if (dir) { /* IN */ + completed = pipe_xfer_in(num); + } else { + if (num) { + completed = pipe_xfer_out(num); + } else { + completed = pipe0_xfer_out(); + } + } + if (completed) { + dcd_event_xfer_complete(rhport, pipe->ep, + pipe->length - pipe->remaining, + XFER_RESULT_SUCCESS, true); + // TU_LOG1("C %d %d\r\n", num, pipe->length - pipe->remaining); + } +} + +static void process_bus_reset(uint8_t rhport) +{ + USB0.BEMPENB.WORD = 1; + USB0.BRDYENB.WORD = 1; + USB0.CFIFOCTR.WORD = USB_FIFOCTR_BCLR; + USB0.D0FIFOSEL.WORD = 0; + while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ + USB0.D1FIFOSEL.WORD = 0; + while (USB0.D1FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ + volatile uint16_t *ctr = (volatile uint16_t*)((uintptr_t)(&USB0.PIPE1CTR.WORD)); + volatile uint16_t *tre = (volatile uint16_t*)((uintptr_t)(&USB0.PIPE1TRE.WORD)); + for (int i = 1; i <= 5; ++i) { + USB0.PIPESEL.WORD = i; + USB0.PIPECFG.WORD = 0; + *ctr = USB_PIPECTR_ACLRM; + *ctr = 0; + ++ctr; + *tre = TU_BIT(8); + tre += 2; + } + for (int i = 6; i <= 9; ++i) { + USB0.PIPESEL.WORD = i; + USB0.PIPECFG.WORD = 0; + *ctr = USB_PIPECTR_ACLRM; + *ctr = 0; + ++ctr; + } + tu_varclr(&_dcd); + dcd_event_bus_reset(rhport, TUSB_SPEED_FULL, true); +} + +static void process_set_address(uint8_t rhport) +{ + const uint32_t addr = USB0.USBADDR.BIT.USBADDR; + if (!addr) return; + const tusb_control_request_t setup_packet = { +#if defined(__CCRX__) + .bmRequestType = { 0 }, /* Note: CCRX needs the braces over this struct member */ +#else + .bmRequestType = 0, +#endif + .bRequest = TUSB_REQ_SET_ADDRESS, + .wValue = addr, + .wIndex = 0, + .wLength = 0, + }; + dcd_event_setup_received(rhport, (const uint8_t*)&setup_packet, true); +} + +/*------------------------------------------------------------------*/ +/* Device API + *------------------------------------------------------------------*/ +void dcd_init(uint8_t rhport) +{ + (void)rhport; + /* Enable USB0 */ + uint32_t pswi = disable_interrupt(); + SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY | SYSTEM_PRCR_PRC1; + MSTP(USB0) = 0; + SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY; + enable_interrupt(pswi); + USB0.SYSCFG.BIT.SCKE = 1; + while (!USB0.SYSCFG.BIT.SCKE) ; + USB0.SYSCFG.BIT.DRPD = 0; + USB0.SYSCFG.BIT.DCFM = 0; + USB0.SYSCFG.BIT.USBE = 1; + + USB.DPUSR0R.BIT.FIXPHY0 = 0u; /* USB0 Transceiver Output fixed */ +#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) + USB0.PHYSLEW.LONG = 0x5; + IR(PERIB, INTB185) = 0; +#else + IR(USB0, USBI0) = 0; +#endif + + /* Setup default control pipe */ + USB0.DCPMAXP.BIT.MXPS = 64; + USB0.INTENB0.WORD = USB_IS0_VBINT | USB_IS0_BRDY | USB_IS0_BEMP | + USB_IS0_DVST | USB_IS0_CTRT | (USE_SOF ? USB_IS0_SOFR: 0) | USB_IS0_RESM; + USB0.BEMPENB.WORD = 1; + USB0.BRDYENB.WORD = 1; + + if (USB0.INTSTS0.BIT.VBSTS) { + dcd_connect(rhport); + } +} + +void dcd_int_enable(uint8_t rhport) +{ + (void)rhport; +#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) + IEN(PERIB, INTB185) = 1; +#else + IEN(USB0, USBI0) = 1; +#endif +} + +void dcd_int_disable(uint8_t rhport) +{ + (void)rhport; +#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) + IEN(PERIB, INTB185) = 0; +#else + IEN(USB0, USBI0) = 0; +#endif +} + +void dcd_set_address(uint8_t rhport, uint8_t dev_addr) +{ + (void)rhport; + (void)dev_addr; +} + +void dcd_remote_wakeup(uint8_t rhport) +{ + (void)rhport; + USB0.DVSTCTR0.BIT.WKUP = 1; +} + +void dcd_connect(uint8_t rhport) +{ + (void)rhport; + USB0.SYSCFG.BIT.DPRPU = 1; +} + +void dcd_disconnect(uint8_t rhport) +{ + (void)rhport; + USB0.SYSCFG.BIT.DPRPU = 0; +} + +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; + + const unsigned mps = tu_edpt_packet_size(ep_desc); + if (xfer == TUSB_XFER_ISOCHRONOUS && mps > 256) { + /* USBa supports up to 256 bytes */ + return false; + } + + const unsigned num = find_pipe(xfer); + if (!num) return false; + _dcd.pipe[num].ep = ep_addr; + _dcd.ep[dir][epn] = num; + + /* setup pipe */ + dcd_int_disable(rhport); + USB0.PIPESEL.WORD = num; + USB0.PIPEMAXP.WORD = mps; + volatile uint16_t *ctr = get_pipectr(num); + *ctr = USB_PIPECTR_ACLRM | USB_PIPECTR_SQCLR; + *ctr = 0; + unsigned cfg = (dir << 4) | epn; + if (xfer == TUSB_XFER_BULK) { + cfg |= (USB_PIPECFG_BULK | USB_PIPECFG_SHTNAK | USB_PIPECFG_DBLB); + } else if (xfer == TUSB_XFER_INTERRUPT) { + cfg |= USB_PIPECFG_INT; + } else { + cfg |= (USB_PIPECFG_ISO | USB_PIPECFG_DBLB); + } + USB0.PIPECFG.WORD = cfg; + USB0.BRDYSTS.WORD = 0x1FFu ^ TU_BIT(num); + USB0.BRDYENB.WORD |= TU_BIT(num); + if (dir || (xfer != TUSB_XFER_BULK)) { + *ctr = USB_PIPECTR_PID_BUF; + } + // TU_LOG1("O %d %x %x\r\n", USB0.PIPESEL.WORD, USB0.PIPECFG.WORD, USB0.PIPEMAXP.WORD); + dcd_int_enable(rhport); + + return true; +} + +void dcd_edpt_close_all(uint8_t rhport) +{ + unsigned i = TU_ARRAY_SIZE(_dcd.pipe); + dcd_int_disable(rhport); + while (--i) { /* Close all pipes except 0 */ + const unsigned ep_addr = _dcd.pipe[i].ep; + if (!ep_addr) continue; + dcd_edpt_close(rhport, ep_addr); + } + dcd_int_enable(rhport); +} + +void dcd_edpt_close(uint8_t rhport, uint8_t ep_addr) +{ + (void)rhport; + const unsigned epn = tu_edpt_number(ep_addr); + const unsigned dir = tu_edpt_dir(ep_addr); + const unsigned num = _dcd.ep[dir][epn]; + + USB0.BRDYENB.WORD &= ~TU_BIT(num); + volatile uint16_t *ctr = get_pipectr(num); + *ctr = 0; + USB0.PIPESEL.WORD = num; + USB0.PIPECFG.WORD = 0; + _dcd.pipe[num].ep = 0; + _dcd.ep[dir][epn] = 0; +} + +bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer, uint16_t total_bytes) +{ + bool r; + dcd_int_disable(rhport); + r = process_edpt_xfer(0, ep_addr, buffer, total_bytes); + dcd_int_enable(rhport); + return r; +} + +bool dcd_edpt_xfer_fifo(uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff, uint16_t total_bytes) +{ + // USB buffers always work in bytes so to avoid unnecessary divisions we demand item_size = 1 + TU_ASSERT(ff->item_size == 1); + bool r; + dcd_int_disable(rhport); + r = process_edpt_xfer(1, ep_addr, ff, total_bytes); + dcd_int_enable(rhport); + return r; +} + +void dcd_edpt_stall(uint8_t rhport, uint8_t ep_addr) +{ + volatile uint16_t *ctr = ep_addr_to_pipectr(rhport, ep_addr); + if (!ctr) return; + dcd_int_disable(rhport); + const uint32_t pid = *ctr & 0x3; + *ctr = pid | USB_PIPECTR_PID_STALL; + *ctr = USB_PIPECTR_PID_STALL; + dcd_int_enable(rhport); +} + +void dcd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr) +{ + volatile uint16_t *ctr = ep_addr_to_pipectr(rhport, ep_addr); + if (!ctr) return; + dcd_int_disable(rhport); + *ctr = USB_PIPECTR_SQCLR; + + if (tu_edpt_dir(ep_addr)) { /* IN */ + *ctr = USB_PIPECTR_PID_BUF; + } else { + const unsigned num = _dcd.ep[0][tu_edpt_number(ep_addr)]; + USB0.PIPESEL.WORD = num; + if (USB0.PIPECFG.BIT.TYPE != 1) { + *ctr = USB_PIPECTR_PID_BUF; + } + } + dcd_int_enable(rhport); +} + +//--------------------------------------------------------------------+ +// ISR +//--------------------------------------------------------------------+ +void dcd_int_handler(uint8_t rhport) +{ + (void)rhport; + + unsigned is0 = USB0.INTSTS0.WORD; + /* clear active bits except VALID (don't write 0 to already cleared bits according to the HW manual) */ + USB0.INTSTS0.WORD = ~((USB_IS0_CTRT | USB_IS0_DVST | USB_IS0_SOFR | USB_IS0_RESM | USB_IS0_VBINT) & is0) | USB_IS0_VALID; + if (is0 & USB_IS0_VBINT) { + if (USB0.INTSTS0.BIT.VBSTS) { + dcd_connect(rhport); + } else { + dcd_disconnect(rhport); + } + } + if (is0 & USB_IS0_RESM) { + dcd_event_bus_signal(rhport, DCD_EVENT_RESUME, true); +#if (0==USE_SOF) + USB0.INTENB0.BIT.SOFE = 0; +#endif + } + if ((is0 & USB_IS0_SOFR) && USB0.INTENB0.BIT.SOFE) { + // USBD will exit suspended mode when SOF event is received + dcd_event_bus_signal(rhport, DCD_EVENT_SOF, true); +#if (0==USE_SOF) + USB0.INTENB0.BIT.SOFE = 0; +#endif + } + if (is0 & USB_IS0_DVST) { + switch (is0 & USB_IS0_DVSQ) { + case USB_IS0_DVSQ_DEF: + process_bus_reset(rhport); + break; + case USB_IS0_DVSQ_ADDR: + process_set_address(rhport); + break; + case USB_IS0_DVSQ_SUSP0: + case USB_IS0_DVSQ_SUSP1: + case USB_IS0_DVSQ_SUSP2: + case USB_IS0_DVSQ_SUSP3: + dcd_event_bus_signal(rhport, DCD_EVENT_SUSPEND, true); +#if (0==USE_SOF) + USB0.INTENB0.BIT.SOFE = 1; +#endif + default: + break; + } + } + if (is0 & USB_IS0_CTRT) { + if (is0 & USB_IS0_CTSQ_SETUP) { + /* A setup packet has been received. */ + process_setup_packet(rhport); + } else if (0 == (is0 & USB_IS0_CTSQ_MSK)) { + /* A ZLP has been sent/received. */ + process_status_completion(rhport); + } + } + if (is0 & USB_IS0_BEMP) { + const unsigned s = USB0.BEMPSTS.WORD; + USB0.BEMPSTS.WORD = 0; + if (s & 1) { + process_pipe0_bemp(rhport); + } + } + if (is0 & USB_IS0_BRDY) { + const unsigned m = USB0.BRDYENB.WORD; + unsigned s = USB0.BRDYSTS.WORD & m; + /* clear active bits (don't write 0 to already cleared bits according to the HW manual) */ + USB0.BRDYSTS.WORD = ~s; + while (s) { +#if defined(__CCRX__) + static const int Mod37BitPosition[] = { + -1, 0, 1, 26, 2, 23, 27, 0, 3, 16, 24, 30, 28, 11, 0, 13, 4, + 7, 17, 0, 25, 22, 31, 15, 29, 10, 12, 6, 0, 21, 14, 9, 5, + 20, 8, 19, 18 + }; + + const unsigned num = Mod37BitPosition[(-s & s) % 37]; +#else + const unsigned num = __builtin_ctz(s); +#endif + process_pipe_brdy(rhport, num); + s &= ~TU_BIT(num); + } + } +} + +#endif diff --git a/src/portable/renesas/link/hcd_link.c b/src/portable/renesas/link/hcd_link.c new file mode 100644 index 000000000..5246ecb94 --- /dev/null +++ b/src/portable/renesas/link/hcd_link.c @@ -0,0 +1,875 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2021 Koji Kitayama + * Portions copyrighted (c) 2021 Roland Winistoerfer + * + * 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_TUH_ENABLED && ( CFG_TUSB_MCU == OPT_MCU_RX63X || \ + CFG_TUSB_MCU == OPT_MCU_RX65X || \ + CFG_TUSB_MCU == OPT_MCU_RX72N ) +#include "host/hcd.h" +#include "iodefine.h" + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM DECLARATION +//--------------------------------------------------------------------+ +#define SYSTEM_PRCR_PRC1 (1<<1) +#define SYSTEM_PRCR_PRKEY (0xA5u<<8) + +#define USB_DVSTCTR0_LOW (1u) +#define USB_DVSTCTR0_FULL (2u) + +#define USB_FIFOSEL_TX ((uint16_t)(1u<<5)) +#define USB_FIFOSEL_BIGEND ((uint16_t)(1u<<8)) +#define USB_FIFOSEL_MBW_8 ((uint16_t)(0u<<10)) +#define USB_FIFOSEL_MBW_16 ((uint16_t)(1u<<10)) +#define USB_IS0_CTSQ ((uint16_t)(7u)) +#define USB_IS0_DVSQ ((uint16_t)(7u<<4)) +#define USB_IS0_VALID ((uint16_t)(1u<<3)) +#define USB_IS0_BRDY ((uint16_t)(1u<<8)) +#define USB_IS0_NRDY ((uint16_t)(1u<<9)) +#define USB_IS0_BEMP ((uint16_t)(1u<<10)) +#define USB_IS0_CTRT ((uint16_t)(1u<<11)) +#define USB_IS0_DVST ((uint16_t)(1u<<12)) +#define USB_IS0_SOFR ((uint16_t)(1u<<13)) +#define USB_IS0_RESM ((uint16_t)(1u<<14)) +#define USB_IS0_VBINT ((uint16_t)(1u<<15)) +#define USB_IS1_SACK ((uint16_t)(1u<<4)) +#define USB_IS1_SIGN ((uint16_t)(1u<<5)) +#define USB_IS1_EOFERR ((uint16_t)(1u<<6)) +#define USB_IS1_ATTCH ((uint16_t)(1u<<11)) +#define USB_IS1_DTCH ((uint16_t)(1u<<12)) +#define USB_IS1_BCHG ((uint16_t)(1u<<14)) +#define USB_IS1_OVRCR ((uint16_t)(1u<<15)) + +#define USB_IS0_CTSQ_MSK (7u) +#define USB_IS0_CTSQ_SETUP (1u) +#define USB_IS0_DVSQ_DEF (1u<<4) +#define USB_IS0_DVSQ_ADDR (2u<<4) +#define USB_IS0_DVSQ_SUSP0 (4u<<4) +#define USB_IS0_DVSQ_SUSP1 (5u<<4) +#define USB_IS0_DVSQ_SUSP2 (6u<<4) +#define USB_IS0_DVSQ_SUSP3 (7u<<4) + +#define USB_PIPECTR_PID_MSK (3u) +#define USB_PIPECTR_PID_NAK (0u) +#define USB_PIPECTR_PID_BUF (1u) +#define USB_PIPECTR_PID_STALL (2u) +#define USB_PIPECTR_CCPL (1u<<2) +#define USB_PIPECTR_SQMON (1u<<6) +#define USB_PIPECTR_SQCLR (1u<<8) +#define USB_PIPECTR_ACLRM (1u<<9) +#define USB_PIPECTR_INBUFM (1u<<14) +#define USB_PIPECTR_BSTS (1u<<15) + +#define USB_FIFOCTR_DTLN (0x1FF) +#define USB_FIFOCTR_FRDY (1u<<13) +#define USB_FIFOCTR_BCLR (1u<<14) +#define USB_FIFOCTR_BVAL (1u<<15) + +#define USB_PIPECFG_SHTNAK (1u<<7) +#define USB_PIPECFG_DBLB (1u<<9) +#define USB_PIPECFG_BULK (1u<<14) +#define USB_PIPECFG_ISO (3u<<14) +#define USB_PIPECFG_INT (2u<<14) + +#define USB_DEVADD_LOW (1u<<6) +#define USB_DEVADD_FULL (2u<<6) + +#define FIFO_REQ_CLR (1u) +#define FIFO_COMPLETE (1u<<1) + +// Start of definition of packed structs (used by the CCRX toolchain) +TU_ATTR_PACKED_BEGIN +TU_ATTR_BIT_FIELD_ORDER_BEGIN + +typedef struct { + union { + struct { + uint16_t : 8; + uint16_t TRCLR: 1; + uint16_t TRENB: 1; + uint16_t : 0; + }; + uint16_t TRE; + }; + uint16_t TRN; +} reg_pipetre_t; + +typedef union { + struct { + volatile uint16_t u8: 8; + volatile uint16_t : 0; + }; + volatile uint16_t u16; +} hw_fifo_t; + +typedef struct TU_ATTR_PACKED +{ + void *buf; /* the start address of a transfer data buffer */ + uint16_t length; /* the number of bytes in the buffer */ + uint16_t remaining; /* the number of bytes remaining in the buffer */ + struct { + uint32_t ep : 8; /* an assigned endpoint address */ + uint32_t dev : 8; /* an assigned device address */ + uint32_t ff : 1; /* `buf` is TU_FUFO or POD */ + uint32_t : 0; + }; +} pipe_state_t; + +TU_ATTR_PACKED_END // End of definition of packed structs (used by the CCRX toolchain) +TU_ATTR_BIT_FIELD_ORDER_END + +typedef struct +{ + bool need_reset; /* The device has not been reset after connection. */ + pipe_state_t pipe[10]; + uint8_t ep[4][2][15]; /* a lookup table for a pipe index from an endpoint address */ + uint8_t ctl_mps[5]; /* EP0 max packet size for each device */ +} hcd_data_t; + +//--------------------------------------------------------------------+ +// INTERNAL OBJECT & FUNCTION DECLARATION +//--------------------------------------------------------------------+ +static hcd_data_t _hcd; + +static uint32_t disable_interrupt(void) +{ + uint32_t pswi; +#if defined(__CCRX__) + pswi = get_psw() & 0x010000; + clrpsw_i(); +#else + pswi = __builtin_rx_mvfc(0) & 0x010000; + __builtin_rx_clrpsw('I'); +#endif + return pswi; +} + +static void enable_interrupt(uint32_t pswi) +{ +#if defined(__CCRX__) + set_psw(get_psw() | pswi); +#else + __builtin_rx_mvtc(0, __builtin_rx_mvfc(0) | pswi); +#endif +} + +static unsigned find_pipe(unsigned xfer) +{ + switch (xfer) { + case TUSB_XFER_ISOCHRONOUS: + for (int i = 1; i <= 2; ++i) { + if (0 == _hcd.pipe[i].ep) return i; + } + break; + case TUSB_XFER_BULK: + for (int i = 3; i <= 5; ++i) { + if (0 == _hcd.pipe[i].ep) return i; + } + for (int i = 1; i <= 1; ++i) { + if (0 == _hcd.pipe[i].ep) return i; + } + break; + case TUSB_XFER_INTERRUPT: + for (int i = 6; i <= 9; ++i) { + if (0 == _hcd.pipe[i].ep) return i; + } + break; + default: + /* No support for control transfer */ + break; + } + return 0; +} + +static volatile uint16_t* get_pipectr(unsigned num) +{ + volatile uint16_t *ctr = NULL; + if (num) { + ctr = (volatile uint16_t*)&USB0.PIPE1CTR.WORD; + ctr += num - 1; + } else { + ctr = (volatile uint16_t*)&USB0.DCPCTR.WORD; + } + return ctr; +} + +static volatile reg_pipetre_t* get_pipetre(unsigned num) +{ + volatile reg_pipetre_t* tre = NULL; + if ((1 <= num) && (num <= 5)) { + tre = (volatile reg_pipetre_t*)&USB0.PIPE1TRE.WORD; + tre += num - 1; + } + return tre; +} + +static volatile uint16_t* addr_to_pipectr(uint8_t dev_addr, unsigned ep_addr) +{ + volatile uint16_t *ctr = NULL; + const unsigned epn = tu_edpt_number(ep_addr); + if (epn) { + const unsigned dir_in = tu_edpt_dir(ep_addr); + const unsigned num = _hcd.ep[dev_addr][dir_in][epn - 1]; + if (num) { + ctr = (volatile uint16_t*)&USB0.PIPE1CTR.WORD; + ctr += num - 1; + } + } else { + ctr = (volatile uint16_t*)&USB0.DCPCTR.WORD; + } + return ctr; +} + +static unsigned edpt0_max_packet_size(void) +{ + return USB0.DCPMAXP.BIT.MXPS; +} + +static unsigned edpt_max_packet_size(unsigned num) +{ + USB0.PIPESEL.WORD = num; + return USB0.PIPEMAXP.BIT.MXPS; +} + +static inline void pipe_wait_for_ready(unsigned num) +{ + while (USB0.D0FIFOSEL.BIT.CURPIPE != num) ; + while (!USB0.D0FIFOCTR.BIT.FRDY) ; +} + +static void pipe_write_packet(void *buf, volatile void *fifo, unsigned len) +{ + volatile hw_fifo_t *reg = (volatile hw_fifo_t*)fifo; + uintptr_t addr = (uintptr_t)buf; + while (len >= 2) { + reg->u16 = *(const uint16_t *)addr; + addr += 2; + len -= 2; + } + if (len) { + reg->u8 = *(const uint8_t *)addr; + ++addr; + } +} + +static void pipe_read_packet(void *buf, volatile void *fifo, unsigned len) +{ + uint8_t *p = (uint8_t*)buf; + volatile uint8_t *reg = (volatile uint8_t*)fifo; /* byte access is always at base register address */ + while (len--) *p++ = *reg; +} + +static bool pipe0_xfer_in(void) +{ + pipe_state_t *pipe = &_hcd.pipe[0]; + const unsigned rem = pipe->remaining; + + const unsigned mps = edpt0_max_packet_size(); + const unsigned vld = USB0.CFIFOCTR.BIT.DTLN; + const unsigned len = TU_MIN(TU_MIN(rem, mps), vld); + void *buf = pipe->buf; + if (len) { + USB0.DCPCTR.WORD = USB_PIPECTR_PID_NAK; + pipe_read_packet(buf, (volatile void*)&USB0.CFIFO.WORD, len); + pipe->buf = (uint8_t*)buf + len; + } + if (len < mps) USB0.CFIFOCTR.WORD = USB_FIFOCTR_BCLR; + pipe->remaining = rem - len; + if ((len < mps) || (rem == len)) { + pipe->buf = NULL; + return true; + } + USB0.DCPCTR.WORD = USB_PIPECTR_PID_BUF; + return false; +} + +static bool pipe0_xfer_out(void) +{ + pipe_state_t *pipe = &_hcd.pipe[0]; + const unsigned rem = pipe->remaining; + if (!rem) { + pipe->buf = NULL; + return true; + } + const unsigned mps = edpt0_max_packet_size(); + const unsigned len = TU_MIN(mps, rem); + void *buf = pipe->buf; + if (len) { + pipe_write_packet(buf, (volatile void*)&USB0.CFIFO.WORD, len); + pipe->buf = (uint8_t*)buf + len; + } + if (len < mps) USB0.CFIFOCTR.WORD = USB_FIFOCTR_BVAL; + pipe->remaining = rem - len; + return false; +} + +static bool pipe_xfer_in(unsigned num) +{ + pipe_state_t *pipe = &_hcd.pipe[num]; + const unsigned rem = pipe->remaining; + + USB0.D0FIFOSEL.WORD = num | USB_FIFOSEL_MBW_8; + const unsigned mps = edpt_max_packet_size(num); + pipe_wait_for_ready(num); + const unsigned vld = USB0.D0FIFOCTR.BIT.DTLN; + const unsigned len = TU_MIN(TU_MIN(rem, mps), vld); + void *buf = pipe->buf; + if (len) { + pipe_read_packet(buf, (volatile void*)&USB0.D0FIFO.WORD, len); + pipe->buf = (uint8_t*)buf + len; + } + if (len < mps) USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BCLR; + USB0.D0FIFOSEL.WORD = 0; + while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ + pipe->remaining = rem - len; + if ((len < mps) || (rem == len)) { + pipe->buf = NULL; + return NULL != buf; + } + return false; +} + +static bool pipe_xfer_out(unsigned num) +{ + pipe_state_t *pipe = &_hcd.pipe[num]; + const unsigned rem = pipe->remaining; + + if (!rem) { + pipe->buf = NULL; + return true; + } + + USB0.D0FIFOSEL.WORD = num | USB_FIFOSEL_MBW_16 | (TU_BYTE_ORDER == TU_BIG_ENDIAN ? USB_FIFOSEL_BIGEND : 0); + const unsigned mps = edpt_max_packet_size(num); + pipe_wait_for_ready(num); + const unsigned len = TU_MIN(rem, mps); + void *buf = pipe->buf; + if (len) { + pipe_write_packet(buf, (volatile void*)&USB0.D0FIFO.WORD, len); + pipe->buf = (uint8_t*)buf + len; + } + if (len < mps) USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BVAL; + USB0.D0FIFOSEL.WORD = 0; + while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ + pipe->remaining = rem - len; + return false; +} + +static bool process_pipe0_xfer(uint8_t dev_addr, uint8_t ep_addr, void* buffer, uint16_t buflen) +{ + (void)dev_addr; + const unsigned dir_in = tu_edpt_dir(ep_addr); + + /* configure fifo direction and access unit settings */ + if (dir_in) { /* IN, a byte */ + USB0.CFIFOSEL.WORD = USB_FIFOSEL_MBW_8; + while (USB0.CFIFOSEL.WORD & USB_FIFOSEL_TX) ; + } else { /* OUT, 2 bytes */ + USB0.CFIFOSEL.WORD = USB_FIFOSEL_TX | USB_FIFOSEL_MBW_16 | (TU_BYTE_ORDER == TU_BIG_ENDIAN ? USB_FIFOSEL_BIGEND : 0); + while (!(USB0.CFIFOSEL.WORD & USB_FIFOSEL_TX)) ; + } + + pipe_state_t *pipe = &_hcd.pipe[0]; + pipe->ep = ep_addr; + pipe->length = buflen; + pipe->remaining = buflen; + if (buflen) { + pipe->buf = buffer; + if (!dir_in) { /* OUT */ + TU_ASSERT(USB0.DCPCTR.BIT.BSTS && (USB0.USBREQ.WORD & 0x80)); + pipe0_xfer_out(); + } + } else { /* ZLP */ + pipe->buf = NULL; + if (!dir_in) { /* OUT */ + USB0.CFIFOCTR.WORD = USB_FIFOCTR_BVAL; + } + if (dir_in == USB0.DCPCFG.BIT.DIR) { + TU_ASSERT(USB_PIPECTR_PID_NAK == USB0.DCPCTR.BIT.PID); + USB0.DCPCTR.BIT.SQSET = 1; + USB0.DCPCFG.BIT.DIR = dir_in ^ 1; + } + } + USB0.DCPCTR.WORD = USB_PIPECTR_PID_BUF; + return true; +} + +static bool process_pipe_xfer(uint8_t dev_addr, uint8_t ep_addr, void* buffer, uint16_t buflen) +{ + const unsigned epn = tu_edpt_number(ep_addr); + const unsigned dir_in = tu_edpt_dir(ep_addr); + const unsigned num = _hcd.ep[dev_addr - 1][dir_in][epn - 1]; + + TU_ASSERT(num); + + pipe_state_t *pipe = &_hcd.pipe[num]; + pipe->buf = buffer; + pipe->length = buflen; + pipe->remaining = buflen; + if (!dir_in) { /* OUT */ + if (buflen) { + pipe_xfer_out(num); + } else { /* ZLP */ + USB0.D0FIFOSEL.WORD = num; + pipe_wait_for_ready(num); + USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BVAL; + USB0.D0FIFOSEL.WORD = 0; + while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ + } + } else { + volatile uint16_t *ctr = get_pipectr(num); + volatile reg_pipetre_t *pt = get_pipetre(num); + if (pt) { + const unsigned mps = edpt_max_packet_size(num); + if (*ctr & 0x3) *ctr = USB_PIPECTR_PID_NAK; + pt->TRE = TU_BIT(8); + pt->TRN = (buflen + mps - 1) / mps; + pt->TRENB = 1; + } + *ctr = USB_PIPECTR_PID_BUF; + } + return true; +} + +static bool process_edpt_xfer(uint8_t dev_addr, uint8_t ep_addr, void* buffer, uint16_t buflen) +{ + const unsigned epn = tu_edpt_number(ep_addr); + if (0 == epn) { + return process_pipe0_xfer(dev_addr, ep_addr, buffer, buflen); + } else { + return process_pipe_xfer(dev_addr, ep_addr, buffer, buflen); + } +} + +static void process_pipe0_bemp(uint8_t rhport) +{ + (void)rhport; + bool completed = pipe0_xfer_out(); + if (completed) { + pipe_state_t *pipe = &_hcd.pipe[0]; + hcd_event_xfer_complete(pipe->dev, + tu_edpt_addr(0, TUSB_DIR_OUT), + pipe->length - pipe->remaining, + XFER_RESULT_SUCCESS, true); + } +} + +static void process_pipe_nrdy(uint8_t rhport, unsigned num) +{ + (void)rhport; + unsigned result; + uint16_t volatile *ctr = get_pipectr(num); + // TU_LOG1("NRDY %d %x\n", num, *ctr); + switch (*ctr & USB_PIPECTR_PID_MSK) { + default: return; + case USB_PIPECTR_PID_STALL: result = XFER_RESULT_STALLED; break; + case USB_PIPECTR_PID_NAK: result = XFER_RESULT_FAILED; break; + } + pipe_state_t *pipe = &_hcd.pipe[num]; + hcd_event_xfer_complete(pipe->dev, pipe->ep, + pipe->length - pipe->remaining, + result, true); +} + +static void process_pipe_brdy(uint8_t rhport, unsigned num) +{ + (void)rhport; + pipe_state_t *pipe = &_hcd.pipe[num]; + const unsigned dir_in = tu_edpt_dir(pipe->ep); + bool completed; + + if (dir_in) { /* IN */ + if (num) { + completed = pipe_xfer_in(num); + } else { + completed = pipe0_xfer_in(); + } + } else { + completed = pipe_xfer_out(num); + } + if (completed) { + hcd_event_xfer_complete(pipe->dev, pipe->ep, + pipe->length - pipe->remaining, + XFER_RESULT_SUCCESS, true); + // TU_LOG1("C %d %d\r\n", num, pipe->length - pipe->remaining); + } +} + + +/*------------------------------------------------------------------*/ +/* Host API + *------------------------------------------------------------------*/ +bool hcd_init(uint8_t rhport) +{ + (void)rhport; + /* Enable USB0 */ + uint32_t pswi = disable_interrupt(); + SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY | SYSTEM_PRCR_PRC1; + MSTP(USB0) = 0; + SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY; + enable_interrupt(pswi); + USB0.SYSCFG.BIT.SCKE = 1; + while (!USB0.SYSCFG.BIT.SCKE) ; + USB0.SYSCFG.BIT.DPRPU = 0; + USB0.SYSCFG.BIT.DRPD = 0; + USB0.SYSCFG.BIT.DCFM = 1; + + USB0.DVSTCTR0.BIT.VBUSEN = 1; + + USB0.SYSCFG.BIT.DRPD = 1; + for (volatile int i = 0; i < 30000; ++i) ; + USB0.SYSCFG.BIT.USBE = 1; + + USB.DPUSR0R.BIT.FIXPHY0 = 0u; /* USB0 Transceiver Output fixed */ +#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) + USB0.PHYSLEW.LONG = 0x5; + IR(PERIB, INTB185) = 0; +#else + IR(USB0, USBI0) = 0; +#endif + + /* Setup default control pipe */ + USB0.DCPCFG.WORD = USB_PIPECFG_SHTNAK; + USB0.DCPMAXP.WORD = 64; + USB0.INTENB0.WORD = USB_IS0_BRDY | USB_IS0_NRDY | USB_IS0_BEMP; + USB0.INTENB1.WORD = USB_IS1_SACK | USB_IS1_SIGN | + USB_IS1_ATTCH | USB_IS1_DTCH; + USB0.BEMPENB.WORD = 1; + USB0.NRDYENB.WORD = 1; + USB0.BRDYENB.WORD = 1; + return true; +} + +void hcd_int_enable(uint8_t rhport) +{ + (void)rhport; +#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) + IEN(PERIB, INTB185) = 1; +#else + IEN(USB0, USBI0) = 1; +#endif +} + +void hcd_int_disable(uint8_t rhport) +{ + (void)rhport; +#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) + IEN(PERIB, INTB185) = 0; +#else + IEN(USB0, USBI0) = 0; +#endif +} + +uint32_t hcd_frame_number(uint8_t rhport) +{ + (void)rhport; + /* The device must be reset at least once after connection + * in order to start the frame counter. */ + if (_hcd.need_reset) hcd_port_reset(rhport); + return USB0.FRMNUM.BIT.FRNM; +} + +/*--------------------------------------------------------------------+ + * Port API + *--------------------------------------------------------------------+*/ +bool hcd_port_connect_status(uint8_t rhport) +{ + (void)rhport; + return USB0.INTSTS1.BIT.ATTCH ? true: false; +} + +void hcd_port_reset(uint8_t rhport) +{ + USB0.DCPCTR.WORD = USB_PIPECTR_PID_NAK; + while (USB0.DCPCTR.BIT.PBUSY) ; + hcd_int_disable(rhport); + USB0.DVSTCTR0.BIT.UACT = 0; + if (USB0.DCPCTR.BIT.SUREQ) + USB0.DCPCTR.BIT.SUREQCLR = 1; + hcd_int_enable(rhport); + /* Reset should be asserted 10-20ms. */ + USB0.DVSTCTR0.BIT.USBRST = 1; + for (volatile int i = 0; i < 2400000; ++i) ; + USB0.DVSTCTR0.BIT.USBRST = 0; + USB0.DVSTCTR0.BIT.UACT = 1; + _hcd.need_reset = false; +} + +void hcd_port_reset_end(uint8_t rhport) +{ + (void) rhport; +} + +tusb_speed_t hcd_port_speed_get(uint8_t rhport) +{ + (void)rhport; + switch (USB0.DVSTCTR0.BIT.RHST) { + default: return TUSB_SPEED_INVALID; + case USB_DVSTCTR0_FULL: return TUSB_SPEED_FULL; + case USB_DVSTCTR0_LOW: return TUSB_SPEED_LOW; + } +} + +void hcd_device_close(uint8_t rhport, uint8_t dev_addr) +{ + (void)rhport; + uint16_t volatile *ctr; + TU_ASSERT(dev_addr < 6,); /* USBa can only handle addresses from 0 to 5. */ + if (!dev_addr) return; + _hcd.ctl_mps[dev_addr] = 0; + uint8_t *ep = &_hcd.ep[dev_addr - 1][0][0]; + for (int i = 0; i < 2 * 15; ++i, ++ep) { + unsigned num = *ep; + if (!num || dev_addr != _hcd.pipe[num].dev) continue; + + ctr = (uint16_t volatile*)&USB0.PIPE1CTR.WORD + num - 1; + *ctr = 0; + USB0.NRDYENB.WORD &= ~TU_BIT(num); + USB0.BRDYENB.WORD &= ~TU_BIT(num); + USB0.PIPESEL.WORD = num; + USB0.PIPECFG.WORD = 0; + USB0.PIPEMAXP.WORD = 0; + + _hcd.pipe[num].ep = 0; + _hcd.pipe[num].dev = 0; + *ep = 0; + } +} + +/*--------------------------------------------------------------------+ + * Endpoints API + *--------------------------------------------------------------------+*/ +bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8]) +{ + (void)rhport; + // TU_LOG1("S %d %x\n", dev_addr, USB0.DCPCTR.WORD); + + TU_ASSERT(dev_addr < 6); /* USBa can only handle addresses from 0 to 5. */ + TU_ASSERT(0 == USB0.DCPCTR.BIT.SUREQ); + + USB0.DCPCTR.WORD = USB_PIPECTR_PID_NAK; + + _hcd.pipe[0].buf = NULL; + _hcd.pipe[0].length = 8; + _hcd.pipe[0].remaining = 0; + _hcd.pipe[0].dev = dev_addr; + + while (USB0.DCPCTR.BIT.PBUSY) ; + USB0.DCPMAXP.WORD = (dev_addr << 12) | _hcd.ctl_mps[dev_addr]; + + /* Set direction in advance for DATA stage */ + uint8_t const bmRequesttype = setup_packet[0]; + USB0.DCPCFG.BIT.DIR = tu_edpt_dir(bmRequesttype) ? 0: 1; + + uint16_t const* p = (uint16_t const*)(uintptr_t)&setup_packet[0]; + USB0.USBREQ.WORD = tu_htole16(p[0]); + USB0.USBVAL = p[1]; + USB0.USBINDX = p[2]; + USB0.USBLENG = p[3]; + + USB0.DCPCTR.BIT.SUREQ = 1; + return true; +} + +bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const * ep_desc) +{ + (void)rhport; + TU_ASSERT(dev_addr < 6); /* USBa can only handle addresses from 0 to 5. */ + + const unsigned ep_addr = ep_desc->bEndpointAddress; + const unsigned epn = tu_edpt_number(ep_addr); + const unsigned mps = tu_edpt_packet_size(ep_desc); + if (0 == epn) { + USB0.DCPCTR.WORD = USB_PIPECTR_PID_NAK; + hcd_devtree_info_t devtree; + hcd_devtree_get_info(dev_addr, &devtree); + uint16_t volatile *devadd = (uint16_t volatile *)(uintptr_t)&USB0.DEVADD0.WORD; + devadd += dev_addr; + while (USB0.DCPCTR.BIT.PBUSY) ; + USB0.DCPMAXP.WORD = (dev_addr << 12) | mps; + *devadd = (TUSB_SPEED_FULL == devtree.speed) ? USB_DEVADD_FULL : USB_DEVADD_LOW; + _hcd.ctl_mps[dev_addr] = mps; + return true; + } + + const unsigned dir_in = tu_edpt_dir(ep_addr); + const unsigned xfer = ep_desc->bmAttributes.xfer; + if (xfer == TUSB_XFER_ISOCHRONOUS && mps > 256) { + /* USBa supports up to 256 bytes */ + return false; + } + const unsigned num = find_pipe(xfer); + if (!num) return false; + _hcd.pipe[num].dev = dev_addr; + _hcd.pipe[num].ep = ep_addr; + _hcd.ep[dev_addr - 1][dir_in][epn - 1] = num; + + /* setup pipe */ + hcd_int_disable(rhport); + USB0.PIPESEL.WORD = num; + USB0.PIPEMAXP.WORD = (dev_addr << 12) | mps; + volatile uint16_t *ctr = get_pipectr(num); + *ctr = USB_PIPECTR_ACLRM | USB_PIPECTR_SQCLR; + *ctr = 0; + unsigned cfg = ((1 ^ dir_in) << 4) | epn; + if (xfer == TUSB_XFER_BULK) { + cfg |= USB_PIPECFG_BULK | USB_PIPECFG_SHTNAK | USB_PIPECFG_DBLB; + } else if (xfer == TUSB_XFER_INTERRUPT) { + cfg |= USB_PIPECFG_INT; + } else { + cfg |= USB_PIPECFG_ISO | USB_PIPECFG_DBLB; + } + USB0.PIPECFG.WORD = cfg; + USB0.BRDYSTS.WORD = 0x1FFu ^ TU_BIT(num); + USB0.NRDYENB.WORD |= TU_BIT(num); + USB0.BRDYENB.WORD |= TU_BIT(num); + if (!dir_in) { + *ctr = USB_PIPECTR_PID_BUF; + } + hcd_int_enable(rhport); + + return true; +} + +bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t *buffer, uint16_t buflen) +{ + bool r; + hcd_int_disable(rhport); + // TU_LOG1("X %d %x %u\n", dev_addr, ep_addr, buflen); + r = process_edpt_xfer(dev_addr, ep_addr, buffer, buflen); + hcd_int_enable(rhport); + return r; +} + +bool hcd_edpt_clear_stall(uint8_t dev_addr, uint8_t ep_addr) +{ + uint16_t volatile *ctr = addr_to_pipectr(dev_addr, ep_addr); + TU_ASSERT(ctr); + + const uint32_t pid = *ctr & 0x3; + if (pid & 2) { + *ctr = pid & 2; + *ctr = 0; + } + *ctr = USB_PIPECTR_SQCLR; + unsigned const epn = tu_edpt_number(ep_addr); + if (!epn) return true; + + if (!tu_edpt_dir(ep_addr)) { /* OUT */ + *ctr = USB_PIPECTR_PID_BUF; + } + return true; +} + +//--------------------------------------------------------------------+ +// ISR +//--------------------------------------------------------------------+ +void hcd_int_handler(uint8_t rhport) +{ + (void)rhport; +#if defined(__CCRX__) + static const int Mod37BitPosition[] = { + -1, 0, 1, 26, 2, 23, 27, 0, 3, 16, 24, 30, 28, 11, 0, 13, 4, + 7, 17, 0, 25, 22, 31, 15, 29, 10, 12, 6, 0, 21, 14, 9, 5, + 20, 8, 19, 18}; +#endif + + unsigned is1 = USB0.INTSTS1.WORD; + unsigned is0 = USB0.INTSTS0.WORD; + /* clear active bits except VALID (don't write 0 to already cleared bits according to the HW manual) */ + USB0.INTSTS1.WORD = ~((USB_IS1_SACK | USB_IS1_SIGN | USB_IS1_ATTCH | USB_IS1_DTCH) & is1); + USB0.INTSTS0.WORD = ~((USB_IS0_BRDY | USB_IS0_NRDY | USB_IS0_BEMP) & is0); + // TU_LOG1("IS %04x %04x\n", is0, is1); + is1 &= USB0.INTENB1.WORD; + is0 &= USB0.INTENB0.WORD; + + if (is1 & USB_IS1_SACK) { + /* Set DATA1 in advance for the next transfer. */ + USB0.DCPCTR.BIT.SQSET = 1; + hcd_event_xfer_complete(USB0.DCPMAXP.BIT.DEVSEL, + tu_edpt_addr(0, TUSB_DIR_OUT), + 8, XFER_RESULT_SUCCESS, true); + } + if (is1 & USB_IS1_SIGN) { + hcd_event_xfer_complete(USB0.DCPMAXP.BIT.DEVSEL, + tu_edpt_addr(0, TUSB_DIR_OUT), + 8, XFER_RESULT_FAILED, true); + } + if (is1 & USB_IS1_ATTCH) { + USB0.DVSTCTR0.BIT.UACT = 1; + _hcd.need_reset = true; + USB0.INTENB1.WORD = (USB0.INTENB1.WORD & ~USB_IS1_ATTCH) | USB_IS1_DTCH; + hcd_event_device_attach(rhport, true); + } + if (is1 & USB_IS1_DTCH) { + USB0.DVSTCTR0.BIT.UACT = 0; + if (USB0.DCPCTR.BIT.SUREQ) + USB0.DCPCTR.BIT.SUREQCLR = 1; + USB0.INTENB1.WORD = (USB0.INTENB1.WORD & ~USB_IS1_DTCH) | USB_IS1_ATTCH; + hcd_event_device_remove(rhport, true); + } + + if (is0 & USB_IS0_BEMP) { + const unsigned s = USB0.BEMPSTS.WORD; + USB0.BEMPSTS.WORD = 0; + if (s & 1) { + process_pipe0_bemp(rhport); + } + } + if (is0 & USB_IS0_NRDY) { + const unsigned m = USB0.NRDYENB.WORD; + unsigned s = USB0.NRDYSTS.WORD & m; + USB0.NRDYSTS.WORD = ~s; + while (s) { +#if defined(__CCRX__) + const unsigned num = Mod37BitPosition[(-s & s) % 37]; +#else + const unsigned num = __builtin_ctz(s); +#endif + process_pipe_nrdy(rhport, num); + s &= ~TU_BIT(num); + } + } + if (is0 & USB_IS0_BRDY) { + const unsigned m = USB0.BRDYENB.WORD; + unsigned s = USB0.BRDYSTS.WORD & m; + /* clear active bits (don't write 0 to already cleared bits according to the HW manual) */ + USB0.BRDYSTS.WORD = ~s; + while (s) { +#if defined(__CCRX__) + const unsigned num = Mod37BitPosition[(-s & s) % 37]; +#else + const unsigned num = __builtin_ctz(s); +#endif + process_pipe_brdy(rhport, num); + s &= ~TU_BIT(num); + } + } +} + +#endif diff --git a/src/portable/renesas/usba/dcd_usba.c b/src/portable/renesas/usba/dcd_usba.c deleted file mode 100644 index fa87c9f4d..000000000 --- a/src/portable/renesas/usba/dcd_usba.c +++ /dev/null @@ -1,915 +0,0 @@ -/* - * The MIT License (MIT) - * - * Copyright (c) 2020 Koji Kitayama - * Portions copyrighted (c) 2021 Roland Winistoerfer - * - * 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" - -// Since TinyUSB doesn't use SOF for now, and this interrupt too often (1ms interval) -// We disable SOF for now until needed later on -#define USE_SOF 0 - -#if CFG_TUD_ENABLED && ( CFG_TUSB_MCU == OPT_MCU_RX63X || \ - CFG_TUSB_MCU == OPT_MCU_RX65X || \ - CFG_TUSB_MCU == OPT_MCU_RX72N ) -#include "device/dcd.h" -#include "iodefine.h" - -//--------------------------------------------------------------------+ -// MACRO TYPEDEF CONSTANT ENUM DECLARATION -//--------------------------------------------------------------------+ -#define SYSTEM_PRCR_PRC1 (1<<1) -#define SYSTEM_PRCR_PRKEY (0xA5u<<8) - -#define USB_FIFOSEL_TX ((uint16_t)(1u<<5)) -#define USB_FIFOSEL_BIGEND ((uint16_t)(1u<<8)) -#define USB_FIFOSEL_MBW_8 ((uint16_t)(0u<<10)) -#define USB_FIFOSEL_MBW_16 ((uint16_t)(1u<<10)) -#define USB_IS0_CTSQ ((uint16_t)(7u)) -#define USB_IS0_DVSQ ((uint16_t)(7u<<4)) -#define USB_IS0_VALID ((uint16_t)(1u<<3)) -#define USB_IS0_BRDY ((uint16_t)(1u<<8)) -#define USB_IS0_NRDY ((uint16_t)(1u<<9)) -#define USB_IS0_BEMP ((uint16_t)(1u<<10)) -#define USB_IS0_CTRT ((uint16_t)(1u<<11)) -#define USB_IS0_DVST ((uint16_t)(1u<<12)) -#define USB_IS0_SOFR ((uint16_t)(1u<<13)) -#define USB_IS0_RESM ((uint16_t)(1u<<14)) -#define USB_IS0_VBINT ((uint16_t)(1u<<15)) -#define USB_IS1_SACK ((uint16_t)(1u<<4)) -#define USB_IS1_SIGN ((uint16_t)(1u<<5)) -#define USB_IS1_EOFERR ((uint16_t)(1u<<6)) -#define USB_IS1_ATTCH ((uint16_t)(1u<<11)) -#define USB_IS1_DTCH ((uint16_t)(1u<<12)) -#define USB_IS1_BCHG ((uint16_t)(1u<<14)) -#define USB_IS1_OVRCR ((uint16_t)(1u<<15)) - -#define USB_IS0_CTSQ_MSK (7u) -#define USB_IS0_CTSQ_SETUP (1u) -#define USB_IS0_DVSQ_DEF (1u<<4) -#define USB_IS0_DVSQ_ADDR (2u<<4) -#define USB_IS0_DVSQ_SUSP0 (4u<<4) -#define USB_IS0_DVSQ_SUSP1 (5u<<4) -#define USB_IS0_DVSQ_SUSP2 (6u<<4) -#define USB_IS0_DVSQ_SUSP3 (7u<<4) - -#define USB_PIPECTR_PID_NAK (0u) -#define USB_PIPECTR_PID_BUF (1u) -#define USB_PIPECTR_PID_STALL (2u) -#define USB_PIPECTR_CCPL (1u<<2) -#define USB_PIPECTR_SQMON (1u<<6) -#define USB_PIPECTR_SQCLR (1u<<8) -#define USB_PIPECTR_ACLRM (1u<<9) -#define USB_PIPECTR_INBUFM (1u<<14) -#define USB_PIPECTR_BSTS (1u<<15) - -#define USB_FIFOCTR_DTLN (0x1FF) -#define USB_FIFOCTR_FRDY (1u<<13) -#define USB_FIFOCTR_BCLR (1u<<14) -#define USB_FIFOCTR_BVAL (1u<<15) - -#define USB_PIPECFG_SHTNAK (1u<<7) -#define USB_PIPECFG_DBLB (1u<<9) -#define USB_PIPECFG_BULK (1u<<14) -#define USB_PIPECFG_ISO (3u<<14) -#define USB_PIPECFG_INT (2u<<14) - -#define FIFO_REQ_CLR (1u) -#define FIFO_COMPLETE (1u<<1) - -// Start of definition of packed structs (used by the CCRX toolchain) -TU_ATTR_PACKED_BEGIN -TU_ATTR_BIT_FIELD_ORDER_BEGIN - -typedef struct { - union { - struct { - uint16_t : 8; - uint16_t TRCLR: 1; - uint16_t TRENB: 1; - uint16_t : 0; - }; - uint16_t TRE; - }; - uint16_t TRN; -} reg_pipetre_t; - -typedef union { - struct { - volatile uint16_t u8: 8; - volatile uint16_t : 0; - }; - volatile uint16_t u16; -} hw_fifo_t; - -typedef struct TU_ATTR_PACKED -{ - void *buf; /* the start address of a transfer data buffer */ - uint16_t length; /* the number of bytes in the buffer */ - uint16_t remaining; /* the number of bytes remaining in the buffer */ - struct { - uint32_t ep : 8; /* an assigned endpoint address */ - uint32_t ff : 1; /* `buf` is TU_FUFO or POD */ - uint32_t : 0; - }; -} pipe_state_t; - -TU_ATTR_PACKED_END // End of definition of packed structs (used by the CCRX toolchain) -TU_ATTR_BIT_FIELD_ORDER_END - -typedef struct -{ - pipe_state_t pipe[10]; - uint8_t ep[2][16]; /* a lookup table for a pipe index from an endpoint address */ -} dcd_data_t; - -//--------------------------------------------------------------------+ -// INTERNAL OBJECT & FUNCTION DECLARATION -//--------------------------------------------------------------------+ -static dcd_data_t _dcd; - -static uint32_t disable_interrupt(void) -{ - uint32_t pswi; -#if defined(__CCRX__) - pswi = get_psw() & 0x010000; - clrpsw_i(); -#else - pswi = __builtin_rx_mvfc(0) & 0x010000; - __builtin_rx_clrpsw('I'); -#endif - return pswi; -} - -static void enable_interrupt(uint32_t pswi) -{ -#if defined(__CCRX__) - set_psw(get_psw() | pswi); -#else - __builtin_rx_mvtc(0, __builtin_rx_mvfc(0) | pswi); -#endif -} - -static unsigned find_pipe(unsigned xfer) -{ - switch (xfer) { - case TUSB_XFER_ISOCHRONOUS: - for (int i = 1; i <= 2; ++i) { - if (0 == _dcd.pipe[i].ep) return i; - } - break; - case TUSB_XFER_BULK: - for (int i = 3; i <= 5; ++i) { - if (0 == _dcd.pipe[i].ep) return i; - } - for (int i = 1; i <= 1; ++i) { - if (0 == _dcd.pipe[i].ep) return i; - } - break; - case TUSB_XFER_INTERRUPT: - for (int i = 6; i <= 9; ++i) { - if (0 == _dcd.pipe[i].ep) return i; - } - break; - default: - /* No support for control transfer */ - break; - } - return 0; -} - -static volatile uint16_t* get_pipectr(unsigned num) -{ - volatile uint16_t *ctr = NULL; - if (num) { - ctr = (volatile uint16_t*)&USB0.PIPE1CTR.WORD; - ctr += num - 1; - } else { - ctr = (volatile uint16_t*)&USB0.DCPCTR.WORD; - } - return ctr; -} - -static volatile reg_pipetre_t* get_pipetre(unsigned num) -{ - volatile reg_pipetre_t* tre = NULL; - if ((1 <= num) && (num <= 5)) { - tre = (volatile reg_pipetre_t*)&USB0.PIPE1TRE.WORD; - tre += num - 1; - } - return tre; -} - -static volatile uint16_t* ep_addr_to_pipectr(uint8_t rhport, unsigned ep_addr) -{ - (void)rhport; - volatile uint16_t *ctr = NULL; - const unsigned epn = tu_edpt_number(ep_addr); - if (epn) { - const unsigned dir = tu_edpt_dir(ep_addr); - const unsigned num = _dcd.ep[dir][epn]; - if (num) { - ctr = (volatile uint16_t*)&USB0.PIPE1CTR.WORD; - ctr += num - 1; - } - } else { - ctr = (volatile uint16_t*)&USB0.DCPCTR.WORD; - } - return ctr; -} - -static unsigned edpt0_max_packet_size(void) -{ - return USB0.DCPMAXP.BIT.MXPS; -} - -static unsigned edpt_max_packet_size(unsigned num) -{ - USB0.PIPESEL.WORD = num; - return USB0.PIPEMAXP.WORD; -} - -static inline void pipe_wait_for_ready(unsigned num) -{ - while (USB0.D0FIFOSEL.BIT.CURPIPE != num) ; - while (!USB0.D0FIFOCTR.BIT.FRDY) ; -} - -static void pipe_write_packet(void *buf, volatile void *fifo, unsigned len) -{ - volatile hw_fifo_t *reg = (volatile hw_fifo_t*) fifo; - uintptr_t addr = (uintptr_t)buf; - while (len >= 2) { - reg->u16 = *(const uint16_t *)addr; - addr += 2; - len -= 2; - } - if (len) { - reg->u8 = *(const uint8_t *)addr; - ++addr; - } -} - -static void pipe_read_packet(void *buf, volatile void *fifo, unsigned len) -{ - uint8_t *p = (uint8_t*)buf; - volatile uint8_t *reg = (volatile uint8_t*)fifo; /* byte access is always at base register address */ - while (len--) *p++ = *reg; -} - -static void pipe_read_write_packet_ff(tu_fifo_t *f, volatile void *fifo, unsigned len, unsigned dir) -{ - static const struct { - void (*tu_fifo_get_info)(tu_fifo_t *f, tu_fifo_buffer_info_t *info); - void (*tu_fifo_advance)(tu_fifo_t *f, uint16_t n); - void (*pipe_read_write)(void *buf, volatile void *fifo, unsigned len); - } ops[] = { - /* OUT */ {tu_fifo_get_write_info,tu_fifo_advance_write_pointer,pipe_read_packet}, - /* IN */ {tu_fifo_get_read_info, tu_fifo_advance_read_pointer, pipe_write_packet}, - }; - tu_fifo_buffer_info_t info; - ops[dir].tu_fifo_get_info(f, &info); - unsigned total_len = len; - len = TU_MIN(total_len, info.len_lin); - ops[dir].pipe_read_write(info.ptr_lin, fifo, len); - unsigned rem = total_len - len; - if (rem) { - len = TU_MIN(rem, info.len_wrap); - ops[dir].pipe_read_write(info.ptr_wrap, fifo, len); - rem -= len; - } - ops[dir].tu_fifo_advance(f, total_len - rem); -} - -static bool pipe0_xfer_in(void) -{ - pipe_state_t *pipe = &_dcd.pipe[0]; - const unsigned rem = pipe->remaining; - if (!rem) { - pipe->buf = NULL; - return true; - } - const unsigned mps = edpt0_max_packet_size(); - const unsigned len = TU_MIN(mps, rem); - void *buf = pipe->buf; - if (len) { - if (pipe->ff) { - pipe_read_write_packet_ff((tu_fifo_t*)buf, (volatile void*)&USB0.CFIFO.WORD, len, TUSB_DIR_IN); - } else { - pipe_write_packet(buf, (volatile void*)&USB0.CFIFO.WORD, len); - pipe->buf = (uint8_t*)buf + len; - } - } - if (len < mps) USB0.CFIFOCTR.WORD = USB_FIFOCTR_BVAL; - pipe->remaining = rem - len; - return false; -} - -static bool pipe0_xfer_out(void) -{ - pipe_state_t *pipe = &_dcd.pipe[0]; - const unsigned rem = pipe->remaining; - - const unsigned mps = edpt0_max_packet_size(); - const unsigned vld = USB0.CFIFOCTR.BIT.DTLN; - const unsigned len = TU_MIN(TU_MIN(rem, mps), vld); - void *buf = pipe->buf; - if (len) { - if (pipe->ff) { - pipe_read_write_packet_ff((tu_fifo_t*)buf, (volatile void*)&USB0.CFIFO.WORD, len, TUSB_DIR_OUT); - } else { - pipe_read_packet(buf, (volatile void*)&USB0.CFIFO.WORD, len); - pipe->buf = (uint8_t*)buf + len; - } - } - if (len < mps) USB0.CFIFOCTR.WORD = USB_FIFOCTR_BCLR; - pipe->remaining = rem - len; - if ((len < mps) || (rem == len)) { - pipe->buf = NULL; - return true; - } - return false; -} - -static bool pipe_xfer_in(unsigned num) -{ - pipe_state_t *pipe = &_dcd.pipe[num]; - const unsigned rem = pipe->remaining; - - if (!rem) { - pipe->buf = NULL; - return true; - } - - USB0.D0FIFOSEL.WORD = num | USB_FIFOSEL_MBW_16 | (TU_BYTE_ORDER == TU_BIG_ENDIAN ? USB_FIFOSEL_BIGEND : 0); - const unsigned mps = edpt_max_packet_size(num); - pipe_wait_for_ready(num); - const unsigned len = TU_MIN(rem, mps); - void *buf = pipe->buf; - if (len) { - if (pipe->ff) { - pipe_read_write_packet_ff((tu_fifo_t*)buf, (volatile void*)&USB0.D0FIFO.WORD, len, TUSB_DIR_IN); - } else { - pipe_write_packet(buf, (volatile void*)&USB0.D0FIFO.WORD, len); - pipe->buf = (uint8_t*)buf + len; - } - } - if (len < mps) USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BVAL; - USB0.D0FIFOSEL.WORD = 0; - while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ - pipe->remaining = rem - len; - return false; -} - -static bool pipe_xfer_out(unsigned num) -{ - pipe_state_t *pipe = &_dcd.pipe[num]; - const unsigned rem = pipe->remaining; - - USB0.D0FIFOSEL.WORD = num | USB_FIFOSEL_MBW_8; - const unsigned mps = edpt_max_packet_size(num); - pipe_wait_for_ready(num); - const unsigned vld = USB0.D0FIFOCTR.BIT.DTLN; - const unsigned len = TU_MIN(TU_MIN(rem, mps), vld); - void *buf = pipe->buf; - if (len) { - if (pipe->ff) { - pipe_read_write_packet_ff((tu_fifo_t*)buf, (volatile void*)&USB0.D0FIFO.WORD, len, TUSB_DIR_OUT); - } else { - pipe_read_packet(buf, (volatile void*)&USB0.D0FIFO.WORD, len); - pipe->buf = (uint8_t*)buf + len; - } - } - if (len < mps) USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BCLR; - USB0.D0FIFOSEL.WORD = 0; - while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ - pipe->remaining = rem - len; - if ((len < mps) || (rem == len)) { - pipe->buf = NULL; - return NULL != buf; - } - return false; -} - -static void process_setup_packet(uint8_t rhport) -{ - uint16_t setup_packet[4]; - if (0 == (USB0.INTSTS0.WORD & USB_IS0_VALID)) return; - USB0.CFIFOCTR.WORD = USB_FIFOCTR_BCLR; - setup_packet[0] = tu_le16toh(USB0.USBREQ.WORD); - setup_packet[1] = USB0.USBVAL; - setup_packet[2] = USB0.USBINDX; - setup_packet[3] = USB0.USBLENG; - USB0.INTSTS0.WORD = ~USB_IS0_VALID; - dcd_event_setup_received(rhport, (const uint8_t*)&setup_packet[0], true); -} - -static void process_status_completion(uint8_t rhport) -{ - uint8_t ep_addr; - /* Check the data stage direction */ - if (USB0.CFIFOSEL.WORD & USB_FIFOSEL_TX) { - /* IN transfer. */ - ep_addr = tu_edpt_addr(0, TUSB_DIR_IN); - } else { - /* OUT transfer. */ - ep_addr = tu_edpt_addr(0, TUSB_DIR_OUT); - } - dcd_event_xfer_complete(rhport, ep_addr, 0, XFER_RESULT_SUCCESS, true); -} - -static bool process_pipe0_xfer(int buffer_type, uint8_t ep_addr, void* buffer, uint16_t total_bytes) -{ - /* configure fifo direction and access unit settings */ - if (ep_addr) { /* IN, 2 bytes */ - USB0.CFIFOSEL.WORD = USB_FIFOSEL_TX | USB_FIFOSEL_MBW_16 | (TU_BYTE_ORDER == TU_BIG_ENDIAN ? USB_FIFOSEL_BIGEND : 0); - while (!(USB0.CFIFOSEL.WORD & USB_FIFOSEL_TX)) ; - } else { /* OUT, a byte */ - USB0.CFIFOSEL.WORD = USB_FIFOSEL_MBW_8; - while (USB0.CFIFOSEL.WORD & USB_FIFOSEL_TX) ; - } - - pipe_state_t *pipe = &_dcd.pipe[0]; - pipe->ff = buffer_type; - pipe->length = total_bytes; - pipe->remaining = total_bytes; - if (total_bytes) { - pipe->buf = buffer; - if (ep_addr) { /* IN */ - TU_ASSERT(USB0.DCPCTR.BIT.BSTS && (USB0.USBREQ.WORD & 0x80)); - pipe0_xfer_in(); - } - USB0.DCPCTR.WORD = USB_PIPECTR_PID_BUF; - } else { - /* ZLP */ - pipe->buf = NULL; - USB0.DCPCTR.WORD = USB_PIPECTR_CCPL | USB_PIPECTR_PID_BUF; - } - return true; -} - -static bool process_pipe_xfer(int buffer_type, uint8_t ep_addr, void* buffer, uint16_t total_bytes) -{ - const unsigned epn = tu_edpt_number(ep_addr); - const unsigned dir = tu_edpt_dir(ep_addr); - const unsigned num = _dcd.ep[dir][epn]; - - TU_ASSERT(num); - - pipe_state_t *pipe = &_dcd.pipe[num]; - pipe->ff = buffer_type; - pipe->buf = buffer; - pipe->length = total_bytes; - pipe->remaining = total_bytes; - if (dir) { /* IN */ - if (total_bytes) { - pipe_xfer_in(num); - } else { /* ZLP */ - USB0.D0FIFOSEL.WORD = num; - pipe_wait_for_ready(num); - USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BVAL; - USB0.D0FIFOSEL.WORD = 0; - while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ - } - } else { -#if defined(__CCRX__) - __evenaccess volatile reg_pipetre_t *pt = get_pipetre(num); -#else - volatile reg_pipetre_t *pt = get_pipetre(num); -#endif - if (pt) { - const unsigned mps = edpt_max_packet_size(num); - volatile uint16_t *ctr = get_pipectr(num); - if (*ctr & 0x3) *ctr = USB_PIPECTR_PID_NAK; - pt->TRE = TU_BIT(8); - pt->TRN = (total_bytes + mps - 1) / mps; - pt->TRENB = 1; - *ctr = USB_PIPECTR_PID_BUF; - } - } - // TU_LOG1("X %x %d %d\r\n", ep_addr, total_bytes, buffer_type); - return true; -} - -static bool process_edpt_xfer(int buffer_type, uint8_t ep_addr, void* buffer, uint16_t total_bytes) -{ - const unsigned epn = tu_edpt_number(ep_addr); - if (0 == epn) { - return process_pipe0_xfer(buffer_type, ep_addr, buffer, total_bytes); - } else { - return process_pipe_xfer(buffer_type, ep_addr, buffer, total_bytes); - } -} - -static void process_pipe0_bemp(uint8_t rhport) -{ - bool completed = pipe0_xfer_in(); - if (completed) { - pipe_state_t *pipe = &_dcd.pipe[0]; - dcd_event_xfer_complete(rhport, tu_edpt_addr(0, TUSB_DIR_IN), - pipe->length, XFER_RESULT_SUCCESS, true); - } -} - -static void process_pipe_brdy(uint8_t rhport, unsigned num) -{ - pipe_state_t *pipe = &_dcd.pipe[num]; - const unsigned dir = tu_edpt_dir(pipe->ep); - bool completed; - - if (dir) { /* IN */ - completed = pipe_xfer_in(num); - } else { - if (num) { - completed = pipe_xfer_out(num); - } else { - completed = pipe0_xfer_out(); - } - } - if (completed) { - dcd_event_xfer_complete(rhport, pipe->ep, - pipe->length - pipe->remaining, - XFER_RESULT_SUCCESS, true); - // TU_LOG1("C %d %d\r\n", num, pipe->length - pipe->remaining); - } -} - -static void process_bus_reset(uint8_t rhport) -{ - USB0.BEMPENB.WORD = 1; - USB0.BRDYENB.WORD = 1; - USB0.CFIFOCTR.WORD = USB_FIFOCTR_BCLR; - USB0.D0FIFOSEL.WORD = 0; - while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ - USB0.D1FIFOSEL.WORD = 0; - while (USB0.D1FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ - volatile uint16_t *ctr = (volatile uint16_t*)((uintptr_t)(&USB0.PIPE1CTR.WORD)); - volatile uint16_t *tre = (volatile uint16_t*)((uintptr_t)(&USB0.PIPE1TRE.WORD)); - for (int i = 1; i <= 5; ++i) { - USB0.PIPESEL.WORD = i; - USB0.PIPECFG.WORD = 0; - *ctr = USB_PIPECTR_ACLRM; - *ctr = 0; - ++ctr; - *tre = TU_BIT(8); - tre += 2; - } - for (int i = 6; i <= 9; ++i) { - USB0.PIPESEL.WORD = i; - USB0.PIPECFG.WORD = 0; - *ctr = USB_PIPECTR_ACLRM; - *ctr = 0; - ++ctr; - } - tu_varclr(&_dcd); - dcd_event_bus_reset(rhport, TUSB_SPEED_FULL, true); -} - -static void process_set_address(uint8_t rhport) -{ - const uint32_t addr = USB0.USBADDR.BIT.USBADDR; - if (!addr) return; - const tusb_control_request_t setup_packet = { -#if defined(__CCRX__) - .bmRequestType = { 0 }, /* Note: CCRX needs the braces over this struct member */ -#else - .bmRequestType = 0, -#endif - .bRequest = TUSB_REQ_SET_ADDRESS, - .wValue = addr, - .wIndex = 0, - .wLength = 0, - }; - dcd_event_setup_received(rhport, (const uint8_t*)&setup_packet, true); -} - -/*------------------------------------------------------------------*/ -/* Device API - *------------------------------------------------------------------*/ -void dcd_init(uint8_t rhport) -{ - (void)rhport; - /* Enable USB0 */ - uint32_t pswi = disable_interrupt(); - SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY | SYSTEM_PRCR_PRC1; - MSTP(USB0) = 0; - SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY; - enable_interrupt(pswi); - USB0.SYSCFG.BIT.SCKE = 1; - while (!USB0.SYSCFG.BIT.SCKE) ; - USB0.SYSCFG.BIT.DRPD = 0; - USB0.SYSCFG.BIT.DCFM = 0; - USB0.SYSCFG.BIT.USBE = 1; - - USB.DPUSR0R.BIT.FIXPHY0 = 0u; /* USB0 Transceiver Output fixed */ -#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) - USB0.PHYSLEW.LONG = 0x5; - IR(PERIB, INTB185) = 0; -#else - IR(USB0, USBI0) = 0; -#endif - - /* Setup default control pipe */ - USB0.DCPMAXP.BIT.MXPS = 64; - USB0.INTENB0.WORD = USB_IS0_VBINT | USB_IS0_BRDY | USB_IS0_BEMP | - USB_IS0_DVST | USB_IS0_CTRT | (USE_SOF ? USB_IS0_SOFR: 0) | USB_IS0_RESM; - USB0.BEMPENB.WORD = 1; - USB0.BRDYENB.WORD = 1; - - if (USB0.INTSTS0.BIT.VBSTS) { - dcd_connect(rhport); - } -} - -void dcd_int_enable(uint8_t rhport) -{ - (void)rhport; -#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) - IEN(PERIB, INTB185) = 1; -#else - IEN(USB0, USBI0) = 1; -#endif -} - -void dcd_int_disable(uint8_t rhport) -{ - (void)rhport; -#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) - IEN(PERIB, INTB185) = 0; -#else - IEN(USB0, USBI0) = 0; -#endif -} - -void dcd_set_address(uint8_t rhport, uint8_t dev_addr) -{ - (void)rhport; - (void)dev_addr; -} - -void dcd_remote_wakeup(uint8_t rhport) -{ - (void)rhport; - USB0.DVSTCTR0.BIT.WKUP = 1; -} - -void dcd_connect(uint8_t rhport) -{ - (void)rhport; - USB0.SYSCFG.BIT.DPRPU = 1; -} - -void dcd_disconnect(uint8_t rhport) -{ - (void)rhport; - USB0.SYSCFG.BIT.DPRPU = 0; -} - -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; - - const unsigned mps = tu_edpt_packet_size(ep_desc); - if (xfer == TUSB_XFER_ISOCHRONOUS && mps > 256) { - /* USBa supports up to 256 bytes */ - return false; - } - - const unsigned num = find_pipe(xfer); - if (!num) return false; - _dcd.pipe[num].ep = ep_addr; - _dcd.ep[dir][epn] = num; - - /* setup pipe */ - dcd_int_disable(rhport); - USB0.PIPESEL.WORD = num; - USB0.PIPEMAXP.WORD = mps; - volatile uint16_t *ctr = get_pipectr(num); - *ctr = USB_PIPECTR_ACLRM | USB_PIPECTR_SQCLR; - *ctr = 0; - unsigned cfg = (dir << 4) | epn; - if (xfer == TUSB_XFER_BULK) { - cfg |= (USB_PIPECFG_BULK | USB_PIPECFG_SHTNAK | USB_PIPECFG_DBLB); - } else if (xfer == TUSB_XFER_INTERRUPT) { - cfg |= USB_PIPECFG_INT; - } else { - cfg |= (USB_PIPECFG_ISO | USB_PIPECFG_DBLB); - } - USB0.PIPECFG.WORD = cfg; - USB0.BRDYSTS.WORD = 0x1FFu ^ TU_BIT(num); - USB0.BRDYENB.WORD |= TU_BIT(num); - if (dir || (xfer != TUSB_XFER_BULK)) { - *ctr = USB_PIPECTR_PID_BUF; - } - // TU_LOG1("O %d %x %x\r\n", USB0.PIPESEL.WORD, USB0.PIPECFG.WORD, USB0.PIPEMAXP.WORD); - dcd_int_enable(rhport); - - return true; -} - -void dcd_edpt_close_all(uint8_t rhport) -{ - unsigned i = TU_ARRAY_SIZE(_dcd.pipe); - dcd_int_disable(rhport); - while (--i) { /* Close all pipes except 0 */ - const unsigned ep_addr = _dcd.pipe[i].ep; - if (!ep_addr) continue; - dcd_edpt_close(rhport, ep_addr); - } - dcd_int_enable(rhport); -} - -void dcd_edpt_close(uint8_t rhport, uint8_t ep_addr) -{ - (void)rhport; - const unsigned epn = tu_edpt_number(ep_addr); - const unsigned dir = tu_edpt_dir(ep_addr); - const unsigned num = _dcd.ep[dir][epn]; - - USB0.BRDYENB.WORD &= ~TU_BIT(num); - volatile uint16_t *ctr = get_pipectr(num); - *ctr = 0; - USB0.PIPESEL.WORD = num; - USB0.PIPECFG.WORD = 0; - _dcd.pipe[num].ep = 0; - _dcd.ep[dir][epn] = 0; -} - -bool dcd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer, uint16_t total_bytes) -{ - bool r; - dcd_int_disable(rhport); - r = process_edpt_xfer(0, ep_addr, buffer, total_bytes); - dcd_int_enable(rhport); - return r; -} - -bool dcd_edpt_xfer_fifo(uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff, uint16_t total_bytes) -{ - // USB buffers always work in bytes so to avoid unnecessary divisions we demand item_size = 1 - TU_ASSERT(ff->item_size == 1); - bool r; - dcd_int_disable(rhport); - r = process_edpt_xfer(1, ep_addr, ff, total_bytes); - dcd_int_enable(rhport); - return r; -} - -void dcd_edpt_stall(uint8_t rhport, uint8_t ep_addr) -{ - volatile uint16_t *ctr = ep_addr_to_pipectr(rhport, ep_addr); - if (!ctr) return; - dcd_int_disable(rhport); - const uint32_t pid = *ctr & 0x3; - *ctr = pid | USB_PIPECTR_PID_STALL; - *ctr = USB_PIPECTR_PID_STALL; - dcd_int_enable(rhport); -} - -void dcd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr) -{ - volatile uint16_t *ctr = ep_addr_to_pipectr(rhport, ep_addr); - if (!ctr) return; - dcd_int_disable(rhport); - *ctr = USB_PIPECTR_SQCLR; - - if (tu_edpt_dir(ep_addr)) { /* IN */ - *ctr = USB_PIPECTR_PID_BUF; - } else { - const unsigned num = _dcd.ep[0][tu_edpt_number(ep_addr)]; - USB0.PIPESEL.WORD = num; - if (USB0.PIPECFG.BIT.TYPE != 1) { - *ctr = USB_PIPECTR_PID_BUF; - } - } - dcd_int_enable(rhport); -} - -//--------------------------------------------------------------------+ -// ISR -//--------------------------------------------------------------------+ -void dcd_int_handler(uint8_t rhport) -{ - (void)rhport; - - unsigned is0 = USB0.INTSTS0.WORD; - /* clear active bits except VALID (don't write 0 to already cleared bits according to the HW manual) */ - USB0.INTSTS0.WORD = ~((USB_IS0_CTRT | USB_IS0_DVST | USB_IS0_SOFR | USB_IS0_RESM | USB_IS0_VBINT) & is0) | USB_IS0_VALID; - if (is0 & USB_IS0_VBINT) { - if (USB0.INTSTS0.BIT.VBSTS) { - dcd_connect(rhport); - } else { - dcd_disconnect(rhport); - } - } - if (is0 & USB_IS0_RESM) { - dcd_event_bus_signal(rhport, DCD_EVENT_RESUME, true); -#if (0==USE_SOF) - USB0.INTENB0.BIT.SOFE = 0; -#endif - } - if ((is0 & USB_IS0_SOFR) && USB0.INTENB0.BIT.SOFE) { - // USBD will exit suspended mode when SOF event is received - dcd_event_bus_signal(rhport, DCD_EVENT_SOF, true); -#if (0==USE_SOF) - USB0.INTENB0.BIT.SOFE = 0; -#endif - } - if (is0 & USB_IS0_DVST) { - switch (is0 & USB_IS0_DVSQ) { - case USB_IS0_DVSQ_DEF: - process_bus_reset(rhport); - break; - case USB_IS0_DVSQ_ADDR: - process_set_address(rhport); - break; - case USB_IS0_DVSQ_SUSP0: - case USB_IS0_DVSQ_SUSP1: - case USB_IS0_DVSQ_SUSP2: - case USB_IS0_DVSQ_SUSP3: - dcd_event_bus_signal(rhport, DCD_EVENT_SUSPEND, true); -#if (0==USE_SOF) - USB0.INTENB0.BIT.SOFE = 1; -#endif - default: - break; - } - } - if (is0 & USB_IS0_CTRT) { - if (is0 & USB_IS0_CTSQ_SETUP) { - /* A setup packet has been received. */ - process_setup_packet(rhport); - } else if (0 == (is0 & USB_IS0_CTSQ_MSK)) { - /* A ZLP has been sent/received. */ - process_status_completion(rhport); - } - } - if (is0 & USB_IS0_BEMP) { - const unsigned s = USB0.BEMPSTS.WORD; - USB0.BEMPSTS.WORD = 0; - if (s & 1) { - process_pipe0_bemp(rhport); - } - } - if (is0 & USB_IS0_BRDY) { - const unsigned m = USB0.BRDYENB.WORD; - unsigned s = USB0.BRDYSTS.WORD & m; - /* clear active bits (don't write 0 to already cleared bits according to the HW manual) */ - USB0.BRDYSTS.WORD = ~s; - while (s) { -#if defined(__CCRX__) - static const int Mod37BitPosition[] = { - -1, 0, 1, 26, 2, 23, 27, 0, 3, 16, 24, 30, 28, 11, 0, 13, 4, - 7, 17, 0, 25, 22, 31, 15, 29, 10, 12, 6, 0, 21, 14, 9, 5, - 20, 8, 19, 18 - }; - - const unsigned num = Mod37BitPosition[(-s & s) % 37]; -#else - const unsigned num = __builtin_ctz(s); -#endif - process_pipe_brdy(rhport, num); - s &= ~TU_BIT(num); - } - } -} - -#endif diff --git a/src/portable/renesas/usba/hcd_usba.c b/src/portable/renesas/usba/hcd_usba.c deleted file mode 100644 index 5246ecb94..000000000 --- a/src/portable/renesas/usba/hcd_usba.c +++ /dev/null @@ -1,875 +0,0 @@ -/* - * The MIT License (MIT) - * - * Copyright (c) 2021 Koji Kitayama - * Portions copyrighted (c) 2021 Roland Winistoerfer - * - * 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_TUH_ENABLED && ( CFG_TUSB_MCU == OPT_MCU_RX63X || \ - CFG_TUSB_MCU == OPT_MCU_RX65X || \ - CFG_TUSB_MCU == OPT_MCU_RX72N ) -#include "host/hcd.h" -#include "iodefine.h" - -//--------------------------------------------------------------------+ -// MACRO TYPEDEF CONSTANT ENUM DECLARATION -//--------------------------------------------------------------------+ -#define SYSTEM_PRCR_PRC1 (1<<1) -#define SYSTEM_PRCR_PRKEY (0xA5u<<8) - -#define USB_DVSTCTR0_LOW (1u) -#define USB_DVSTCTR0_FULL (2u) - -#define USB_FIFOSEL_TX ((uint16_t)(1u<<5)) -#define USB_FIFOSEL_BIGEND ((uint16_t)(1u<<8)) -#define USB_FIFOSEL_MBW_8 ((uint16_t)(0u<<10)) -#define USB_FIFOSEL_MBW_16 ((uint16_t)(1u<<10)) -#define USB_IS0_CTSQ ((uint16_t)(7u)) -#define USB_IS0_DVSQ ((uint16_t)(7u<<4)) -#define USB_IS0_VALID ((uint16_t)(1u<<3)) -#define USB_IS0_BRDY ((uint16_t)(1u<<8)) -#define USB_IS0_NRDY ((uint16_t)(1u<<9)) -#define USB_IS0_BEMP ((uint16_t)(1u<<10)) -#define USB_IS0_CTRT ((uint16_t)(1u<<11)) -#define USB_IS0_DVST ((uint16_t)(1u<<12)) -#define USB_IS0_SOFR ((uint16_t)(1u<<13)) -#define USB_IS0_RESM ((uint16_t)(1u<<14)) -#define USB_IS0_VBINT ((uint16_t)(1u<<15)) -#define USB_IS1_SACK ((uint16_t)(1u<<4)) -#define USB_IS1_SIGN ((uint16_t)(1u<<5)) -#define USB_IS1_EOFERR ((uint16_t)(1u<<6)) -#define USB_IS1_ATTCH ((uint16_t)(1u<<11)) -#define USB_IS1_DTCH ((uint16_t)(1u<<12)) -#define USB_IS1_BCHG ((uint16_t)(1u<<14)) -#define USB_IS1_OVRCR ((uint16_t)(1u<<15)) - -#define USB_IS0_CTSQ_MSK (7u) -#define USB_IS0_CTSQ_SETUP (1u) -#define USB_IS0_DVSQ_DEF (1u<<4) -#define USB_IS0_DVSQ_ADDR (2u<<4) -#define USB_IS0_DVSQ_SUSP0 (4u<<4) -#define USB_IS0_DVSQ_SUSP1 (5u<<4) -#define USB_IS0_DVSQ_SUSP2 (6u<<4) -#define USB_IS0_DVSQ_SUSP3 (7u<<4) - -#define USB_PIPECTR_PID_MSK (3u) -#define USB_PIPECTR_PID_NAK (0u) -#define USB_PIPECTR_PID_BUF (1u) -#define USB_PIPECTR_PID_STALL (2u) -#define USB_PIPECTR_CCPL (1u<<2) -#define USB_PIPECTR_SQMON (1u<<6) -#define USB_PIPECTR_SQCLR (1u<<8) -#define USB_PIPECTR_ACLRM (1u<<9) -#define USB_PIPECTR_INBUFM (1u<<14) -#define USB_PIPECTR_BSTS (1u<<15) - -#define USB_FIFOCTR_DTLN (0x1FF) -#define USB_FIFOCTR_FRDY (1u<<13) -#define USB_FIFOCTR_BCLR (1u<<14) -#define USB_FIFOCTR_BVAL (1u<<15) - -#define USB_PIPECFG_SHTNAK (1u<<7) -#define USB_PIPECFG_DBLB (1u<<9) -#define USB_PIPECFG_BULK (1u<<14) -#define USB_PIPECFG_ISO (3u<<14) -#define USB_PIPECFG_INT (2u<<14) - -#define USB_DEVADD_LOW (1u<<6) -#define USB_DEVADD_FULL (2u<<6) - -#define FIFO_REQ_CLR (1u) -#define FIFO_COMPLETE (1u<<1) - -// Start of definition of packed structs (used by the CCRX toolchain) -TU_ATTR_PACKED_BEGIN -TU_ATTR_BIT_FIELD_ORDER_BEGIN - -typedef struct { - union { - struct { - uint16_t : 8; - uint16_t TRCLR: 1; - uint16_t TRENB: 1; - uint16_t : 0; - }; - uint16_t TRE; - }; - uint16_t TRN; -} reg_pipetre_t; - -typedef union { - struct { - volatile uint16_t u8: 8; - volatile uint16_t : 0; - }; - volatile uint16_t u16; -} hw_fifo_t; - -typedef struct TU_ATTR_PACKED -{ - void *buf; /* the start address of a transfer data buffer */ - uint16_t length; /* the number of bytes in the buffer */ - uint16_t remaining; /* the number of bytes remaining in the buffer */ - struct { - uint32_t ep : 8; /* an assigned endpoint address */ - uint32_t dev : 8; /* an assigned device address */ - uint32_t ff : 1; /* `buf` is TU_FUFO or POD */ - uint32_t : 0; - }; -} pipe_state_t; - -TU_ATTR_PACKED_END // End of definition of packed structs (used by the CCRX toolchain) -TU_ATTR_BIT_FIELD_ORDER_END - -typedef struct -{ - bool need_reset; /* The device has not been reset after connection. */ - pipe_state_t pipe[10]; - uint8_t ep[4][2][15]; /* a lookup table for a pipe index from an endpoint address */ - uint8_t ctl_mps[5]; /* EP0 max packet size for each device */ -} hcd_data_t; - -//--------------------------------------------------------------------+ -// INTERNAL OBJECT & FUNCTION DECLARATION -//--------------------------------------------------------------------+ -static hcd_data_t _hcd; - -static uint32_t disable_interrupt(void) -{ - uint32_t pswi; -#if defined(__CCRX__) - pswi = get_psw() & 0x010000; - clrpsw_i(); -#else - pswi = __builtin_rx_mvfc(0) & 0x010000; - __builtin_rx_clrpsw('I'); -#endif - return pswi; -} - -static void enable_interrupt(uint32_t pswi) -{ -#if defined(__CCRX__) - set_psw(get_psw() | pswi); -#else - __builtin_rx_mvtc(0, __builtin_rx_mvfc(0) | pswi); -#endif -} - -static unsigned find_pipe(unsigned xfer) -{ - switch (xfer) { - case TUSB_XFER_ISOCHRONOUS: - for (int i = 1; i <= 2; ++i) { - if (0 == _hcd.pipe[i].ep) return i; - } - break; - case TUSB_XFER_BULK: - for (int i = 3; i <= 5; ++i) { - if (0 == _hcd.pipe[i].ep) return i; - } - for (int i = 1; i <= 1; ++i) { - if (0 == _hcd.pipe[i].ep) return i; - } - break; - case TUSB_XFER_INTERRUPT: - for (int i = 6; i <= 9; ++i) { - if (0 == _hcd.pipe[i].ep) return i; - } - break; - default: - /* No support for control transfer */ - break; - } - return 0; -} - -static volatile uint16_t* get_pipectr(unsigned num) -{ - volatile uint16_t *ctr = NULL; - if (num) { - ctr = (volatile uint16_t*)&USB0.PIPE1CTR.WORD; - ctr += num - 1; - } else { - ctr = (volatile uint16_t*)&USB0.DCPCTR.WORD; - } - return ctr; -} - -static volatile reg_pipetre_t* get_pipetre(unsigned num) -{ - volatile reg_pipetre_t* tre = NULL; - if ((1 <= num) && (num <= 5)) { - tre = (volatile reg_pipetre_t*)&USB0.PIPE1TRE.WORD; - tre += num - 1; - } - return tre; -} - -static volatile uint16_t* addr_to_pipectr(uint8_t dev_addr, unsigned ep_addr) -{ - volatile uint16_t *ctr = NULL; - const unsigned epn = tu_edpt_number(ep_addr); - if (epn) { - const unsigned dir_in = tu_edpt_dir(ep_addr); - const unsigned num = _hcd.ep[dev_addr][dir_in][epn - 1]; - if (num) { - ctr = (volatile uint16_t*)&USB0.PIPE1CTR.WORD; - ctr += num - 1; - } - } else { - ctr = (volatile uint16_t*)&USB0.DCPCTR.WORD; - } - return ctr; -} - -static unsigned edpt0_max_packet_size(void) -{ - return USB0.DCPMAXP.BIT.MXPS; -} - -static unsigned edpt_max_packet_size(unsigned num) -{ - USB0.PIPESEL.WORD = num; - return USB0.PIPEMAXP.BIT.MXPS; -} - -static inline void pipe_wait_for_ready(unsigned num) -{ - while (USB0.D0FIFOSEL.BIT.CURPIPE != num) ; - while (!USB0.D0FIFOCTR.BIT.FRDY) ; -} - -static void pipe_write_packet(void *buf, volatile void *fifo, unsigned len) -{ - volatile hw_fifo_t *reg = (volatile hw_fifo_t*)fifo; - uintptr_t addr = (uintptr_t)buf; - while (len >= 2) { - reg->u16 = *(const uint16_t *)addr; - addr += 2; - len -= 2; - } - if (len) { - reg->u8 = *(const uint8_t *)addr; - ++addr; - } -} - -static void pipe_read_packet(void *buf, volatile void *fifo, unsigned len) -{ - uint8_t *p = (uint8_t*)buf; - volatile uint8_t *reg = (volatile uint8_t*)fifo; /* byte access is always at base register address */ - while (len--) *p++ = *reg; -} - -static bool pipe0_xfer_in(void) -{ - pipe_state_t *pipe = &_hcd.pipe[0]; - const unsigned rem = pipe->remaining; - - const unsigned mps = edpt0_max_packet_size(); - const unsigned vld = USB0.CFIFOCTR.BIT.DTLN; - const unsigned len = TU_MIN(TU_MIN(rem, mps), vld); - void *buf = pipe->buf; - if (len) { - USB0.DCPCTR.WORD = USB_PIPECTR_PID_NAK; - pipe_read_packet(buf, (volatile void*)&USB0.CFIFO.WORD, len); - pipe->buf = (uint8_t*)buf + len; - } - if (len < mps) USB0.CFIFOCTR.WORD = USB_FIFOCTR_BCLR; - pipe->remaining = rem - len; - if ((len < mps) || (rem == len)) { - pipe->buf = NULL; - return true; - } - USB0.DCPCTR.WORD = USB_PIPECTR_PID_BUF; - return false; -} - -static bool pipe0_xfer_out(void) -{ - pipe_state_t *pipe = &_hcd.pipe[0]; - const unsigned rem = pipe->remaining; - if (!rem) { - pipe->buf = NULL; - return true; - } - const unsigned mps = edpt0_max_packet_size(); - const unsigned len = TU_MIN(mps, rem); - void *buf = pipe->buf; - if (len) { - pipe_write_packet(buf, (volatile void*)&USB0.CFIFO.WORD, len); - pipe->buf = (uint8_t*)buf + len; - } - if (len < mps) USB0.CFIFOCTR.WORD = USB_FIFOCTR_BVAL; - pipe->remaining = rem - len; - return false; -} - -static bool pipe_xfer_in(unsigned num) -{ - pipe_state_t *pipe = &_hcd.pipe[num]; - const unsigned rem = pipe->remaining; - - USB0.D0FIFOSEL.WORD = num | USB_FIFOSEL_MBW_8; - const unsigned mps = edpt_max_packet_size(num); - pipe_wait_for_ready(num); - const unsigned vld = USB0.D0FIFOCTR.BIT.DTLN; - const unsigned len = TU_MIN(TU_MIN(rem, mps), vld); - void *buf = pipe->buf; - if (len) { - pipe_read_packet(buf, (volatile void*)&USB0.D0FIFO.WORD, len); - pipe->buf = (uint8_t*)buf + len; - } - if (len < mps) USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BCLR; - USB0.D0FIFOSEL.WORD = 0; - while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ - pipe->remaining = rem - len; - if ((len < mps) || (rem == len)) { - pipe->buf = NULL; - return NULL != buf; - } - return false; -} - -static bool pipe_xfer_out(unsigned num) -{ - pipe_state_t *pipe = &_hcd.pipe[num]; - const unsigned rem = pipe->remaining; - - if (!rem) { - pipe->buf = NULL; - return true; - } - - USB0.D0FIFOSEL.WORD = num | USB_FIFOSEL_MBW_16 | (TU_BYTE_ORDER == TU_BIG_ENDIAN ? USB_FIFOSEL_BIGEND : 0); - const unsigned mps = edpt_max_packet_size(num); - pipe_wait_for_ready(num); - const unsigned len = TU_MIN(rem, mps); - void *buf = pipe->buf; - if (len) { - pipe_write_packet(buf, (volatile void*)&USB0.D0FIFO.WORD, len); - pipe->buf = (uint8_t*)buf + len; - } - if (len < mps) USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BVAL; - USB0.D0FIFOSEL.WORD = 0; - while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ - pipe->remaining = rem - len; - return false; -} - -static bool process_pipe0_xfer(uint8_t dev_addr, uint8_t ep_addr, void* buffer, uint16_t buflen) -{ - (void)dev_addr; - const unsigned dir_in = tu_edpt_dir(ep_addr); - - /* configure fifo direction and access unit settings */ - if (dir_in) { /* IN, a byte */ - USB0.CFIFOSEL.WORD = USB_FIFOSEL_MBW_8; - while (USB0.CFIFOSEL.WORD & USB_FIFOSEL_TX) ; - } else { /* OUT, 2 bytes */ - USB0.CFIFOSEL.WORD = USB_FIFOSEL_TX | USB_FIFOSEL_MBW_16 | (TU_BYTE_ORDER == TU_BIG_ENDIAN ? USB_FIFOSEL_BIGEND : 0); - while (!(USB0.CFIFOSEL.WORD & USB_FIFOSEL_TX)) ; - } - - pipe_state_t *pipe = &_hcd.pipe[0]; - pipe->ep = ep_addr; - pipe->length = buflen; - pipe->remaining = buflen; - if (buflen) { - pipe->buf = buffer; - if (!dir_in) { /* OUT */ - TU_ASSERT(USB0.DCPCTR.BIT.BSTS && (USB0.USBREQ.WORD & 0x80)); - pipe0_xfer_out(); - } - } else { /* ZLP */ - pipe->buf = NULL; - if (!dir_in) { /* OUT */ - USB0.CFIFOCTR.WORD = USB_FIFOCTR_BVAL; - } - if (dir_in == USB0.DCPCFG.BIT.DIR) { - TU_ASSERT(USB_PIPECTR_PID_NAK == USB0.DCPCTR.BIT.PID); - USB0.DCPCTR.BIT.SQSET = 1; - USB0.DCPCFG.BIT.DIR = dir_in ^ 1; - } - } - USB0.DCPCTR.WORD = USB_PIPECTR_PID_BUF; - return true; -} - -static bool process_pipe_xfer(uint8_t dev_addr, uint8_t ep_addr, void* buffer, uint16_t buflen) -{ - const unsigned epn = tu_edpt_number(ep_addr); - const unsigned dir_in = tu_edpt_dir(ep_addr); - const unsigned num = _hcd.ep[dev_addr - 1][dir_in][epn - 1]; - - TU_ASSERT(num); - - pipe_state_t *pipe = &_hcd.pipe[num]; - pipe->buf = buffer; - pipe->length = buflen; - pipe->remaining = buflen; - if (!dir_in) { /* OUT */ - if (buflen) { - pipe_xfer_out(num); - } else { /* ZLP */ - USB0.D0FIFOSEL.WORD = num; - pipe_wait_for_ready(num); - USB0.D0FIFOCTR.WORD = USB_FIFOCTR_BVAL; - USB0.D0FIFOSEL.WORD = 0; - while (USB0.D0FIFOSEL.BIT.CURPIPE) ; /* if CURPIPE bits changes, check written value */ - } - } else { - volatile uint16_t *ctr = get_pipectr(num); - volatile reg_pipetre_t *pt = get_pipetre(num); - if (pt) { - const unsigned mps = edpt_max_packet_size(num); - if (*ctr & 0x3) *ctr = USB_PIPECTR_PID_NAK; - pt->TRE = TU_BIT(8); - pt->TRN = (buflen + mps - 1) / mps; - pt->TRENB = 1; - } - *ctr = USB_PIPECTR_PID_BUF; - } - return true; -} - -static bool process_edpt_xfer(uint8_t dev_addr, uint8_t ep_addr, void* buffer, uint16_t buflen) -{ - const unsigned epn = tu_edpt_number(ep_addr); - if (0 == epn) { - return process_pipe0_xfer(dev_addr, ep_addr, buffer, buflen); - } else { - return process_pipe_xfer(dev_addr, ep_addr, buffer, buflen); - } -} - -static void process_pipe0_bemp(uint8_t rhport) -{ - (void)rhport; - bool completed = pipe0_xfer_out(); - if (completed) { - pipe_state_t *pipe = &_hcd.pipe[0]; - hcd_event_xfer_complete(pipe->dev, - tu_edpt_addr(0, TUSB_DIR_OUT), - pipe->length - pipe->remaining, - XFER_RESULT_SUCCESS, true); - } -} - -static void process_pipe_nrdy(uint8_t rhport, unsigned num) -{ - (void)rhport; - unsigned result; - uint16_t volatile *ctr = get_pipectr(num); - // TU_LOG1("NRDY %d %x\n", num, *ctr); - switch (*ctr & USB_PIPECTR_PID_MSK) { - default: return; - case USB_PIPECTR_PID_STALL: result = XFER_RESULT_STALLED; break; - case USB_PIPECTR_PID_NAK: result = XFER_RESULT_FAILED; break; - } - pipe_state_t *pipe = &_hcd.pipe[num]; - hcd_event_xfer_complete(pipe->dev, pipe->ep, - pipe->length - pipe->remaining, - result, true); -} - -static void process_pipe_brdy(uint8_t rhport, unsigned num) -{ - (void)rhport; - pipe_state_t *pipe = &_hcd.pipe[num]; - const unsigned dir_in = tu_edpt_dir(pipe->ep); - bool completed; - - if (dir_in) { /* IN */ - if (num) { - completed = pipe_xfer_in(num); - } else { - completed = pipe0_xfer_in(); - } - } else { - completed = pipe_xfer_out(num); - } - if (completed) { - hcd_event_xfer_complete(pipe->dev, pipe->ep, - pipe->length - pipe->remaining, - XFER_RESULT_SUCCESS, true); - // TU_LOG1("C %d %d\r\n", num, pipe->length - pipe->remaining); - } -} - - -/*------------------------------------------------------------------*/ -/* Host API - *------------------------------------------------------------------*/ -bool hcd_init(uint8_t rhport) -{ - (void)rhport; - /* Enable USB0 */ - uint32_t pswi = disable_interrupt(); - SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY | SYSTEM_PRCR_PRC1; - MSTP(USB0) = 0; - SYSTEM.PRCR.WORD = SYSTEM_PRCR_PRKEY; - enable_interrupt(pswi); - USB0.SYSCFG.BIT.SCKE = 1; - while (!USB0.SYSCFG.BIT.SCKE) ; - USB0.SYSCFG.BIT.DPRPU = 0; - USB0.SYSCFG.BIT.DRPD = 0; - USB0.SYSCFG.BIT.DCFM = 1; - - USB0.DVSTCTR0.BIT.VBUSEN = 1; - - USB0.SYSCFG.BIT.DRPD = 1; - for (volatile int i = 0; i < 30000; ++i) ; - USB0.SYSCFG.BIT.USBE = 1; - - USB.DPUSR0R.BIT.FIXPHY0 = 0u; /* USB0 Transceiver Output fixed */ -#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) - USB0.PHYSLEW.LONG = 0x5; - IR(PERIB, INTB185) = 0; -#else - IR(USB0, USBI0) = 0; -#endif - - /* Setup default control pipe */ - USB0.DCPCFG.WORD = USB_PIPECFG_SHTNAK; - USB0.DCPMAXP.WORD = 64; - USB0.INTENB0.WORD = USB_IS0_BRDY | USB_IS0_NRDY | USB_IS0_BEMP; - USB0.INTENB1.WORD = USB_IS1_SACK | USB_IS1_SIGN | - USB_IS1_ATTCH | USB_IS1_DTCH; - USB0.BEMPENB.WORD = 1; - USB0.NRDYENB.WORD = 1; - USB0.BRDYENB.WORD = 1; - return true; -} - -void hcd_int_enable(uint8_t rhport) -{ - (void)rhport; -#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) - IEN(PERIB, INTB185) = 1; -#else - IEN(USB0, USBI0) = 1; -#endif -} - -void hcd_int_disable(uint8_t rhport) -{ - (void)rhport; -#if ( CFG_TUSB_MCU == OPT_MCU_RX72N ) - IEN(PERIB, INTB185) = 0; -#else - IEN(USB0, USBI0) = 0; -#endif -} - -uint32_t hcd_frame_number(uint8_t rhport) -{ - (void)rhport; - /* The device must be reset at least once after connection - * in order to start the frame counter. */ - if (_hcd.need_reset) hcd_port_reset(rhport); - return USB0.FRMNUM.BIT.FRNM; -} - -/*--------------------------------------------------------------------+ - * Port API - *--------------------------------------------------------------------+*/ -bool hcd_port_connect_status(uint8_t rhport) -{ - (void)rhport; - return USB0.INTSTS1.BIT.ATTCH ? true: false; -} - -void hcd_port_reset(uint8_t rhport) -{ - USB0.DCPCTR.WORD = USB_PIPECTR_PID_NAK; - while (USB0.DCPCTR.BIT.PBUSY) ; - hcd_int_disable(rhport); - USB0.DVSTCTR0.BIT.UACT = 0; - if (USB0.DCPCTR.BIT.SUREQ) - USB0.DCPCTR.BIT.SUREQCLR = 1; - hcd_int_enable(rhport); - /* Reset should be asserted 10-20ms. */ - USB0.DVSTCTR0.BIT.USBRST = 1; - for (volatile int i = 0; i < 2400000; ++i) ; - USB0.DVSTCTR0.BIT.USBRST = 0; - USB0.DVSTCTR0.BIT.UACT = 1; - _hcd.need_reset = false; -} - -void hcd_port_reset_end(uint8_t rhport) -{ - (void) rhport; -} - -tusb_speed_t hcd_port_speed_get(uint8_t rhport) -{ - (void)rhport; - switch (USB0.DVSTCTR0.BIT.RHST) { - default: return TUSB_SPEED_INVALID; - case USB_DVSTCTR0_FULL: return TUSB_SPEED_FULL; - case USB_DVSTCTR0_LOW: return TUSB_SPEED_LOW; - } -} - -void hcd_device_close(uint8_t rhport, uint8_t dev_addr) -{ - (void)rhport; - uint16_t volatile *ctr; - TU_ASSERT(dev_addr < 6,); /* USBa can only handle addresses from 0 to 5. */ - if (!dev_addr) return; - _hcd.ctl_mps[dev_addr] = 0; - uint8_t *ep = &_hcd.ep[dev_addr - 1][0][0]; - for (int i = 0; i < 2 * 15; ++i, ++ep) { - unsigned num = *ep; - if (!num || dev_addr != _hcd.pipe[num].dev) continue; - - ctr = (uint16_t volatile*)&USB0.PIPE1CTR.WORD + num - 1; - *ctr = 0; - USB0.NRDYENB.WORD &= ~TU_BIT(num); - USB0.BRDYENB.WORD &= ~TU_BIT(num); - USB0.PIPESEL.WORD = num; - USB0.PIPECFG.WORD = 0; - USB0.PIPEMAXP.WORD = 0; - - _hcd.pipe[num].ep = 0; - _hcd.pipe[num].dev = 0; - *ep = 0; - } -} - -/*--------------------------------------------------------------------+ - * Endpoints API - *--------------------------------------------------------------------+*/ -bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8]) -{ - (void)rhport; - // TU_LOG1("S %d %x\n", dev_addr, USB0.DCPCTR.WORD); - - TU_ASSERT(dev_addr < 6); /* USBa can only handle addresses from 0 to 5. */ - TU_ASSERT(0 == USB0.DCPCTR.BIT.SUREQ); - - USB0.DCPCTR.WORD = USB_PIPECTR_PID_NAK; - - _hcd.pipe[0].buf = NULL; - _hcd.pipe[0].length = 8; - _hcd.pipe[0].remaining = 0; - _hcd.pipe[0].dev = dev_addr; - - while (USB0.DCPCTR.BIT.PBUSY) ; - USB0.DCPMAXP.WORD = (dev_addr << 12) | _hcd.ctl_mps[dev_addr]; - - /* Set direction in advance for DATA stage */ - uint8_t const bmRequesttype = setup_packet[0]; - USB0.DCPCFG.BIT.DIR = tu_edpt_dir(bmRequesttype) ? 0: 1; - - uint16_t const* p = (uint16_t const*)(uintptr_t)&setup_packet[0]; - USB0.USBREQ.WORD = tu_htole16(p[0]); - USB0.USBVAL = p[1]; - USB0.USBINDX = p[2]; - USB0.USBLENG = p[3]; - - USB0.DCPCTR.BIT.SUREQ = 1; - return true; -} - -bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const * ep_desc) -{ - (void)rhport; - TU_ASSERT(dev_addr < 6); /* USBa can only handle addresses from 0 to 5. */ - - const unsigned ep_addr = ep_desc->bEndpointAddress; - const unsigned epn = tu_edpt_number(ep_addr); - const unsigned mps = tu_edpt_packet_size(ep_desc); - if (0 == epn) { - USB0.DCPCTR.WORD = USB_PIPECTR_PID_NAK; - hcd_devtree_info_t devtree; - hcd_devtree_get_info(dev_addr, &devtree); - uint16_t volatile *devadd = (uint16_t volatile *)(uintptr_t)&USB0.DEVADD0.WORD; - devadd += dev_addr; - while (USB0.DCPCTR.BIT.PBUSY) ; - USB0.DCPMAXP.WORD = (dev_addr << 12) | mps; - *devadd = (TUSB_SPEED_FULL == devtree.speed) ? USB_DEVADD_FULL : USB_DEVADD_LOW; - _hcd.ctl_mps[dev_addr] = mps; - return true; - } - - const unsigned dir_in = tu_edpt_dir(ep_addr); - const unsigned xfer = ep_desc->bmAttributes.xfer; - if (xfer == TUSB_XFER_ISOCHRONOUS && mps > 256) { - /* USBa supports up to 256 bytes */ - return false; - } - const unsigned num = find_pipe(xfer); - if (!num) return false; - _hcd.pipe[num].dev = dev_addr; - _hcd.pipe[num].ep = ep_addr; - _hcd.ep[dev_addr - 1][dir_in][epn - 1] = num; - - /* setup pipe */ - hcd_int_disable(rhport); - USB0.PIPESEL.WORD = num; - USB0.PIPEMAXP.WORD = (dev_addr << 12) | mps; - volatile uint16_t *ctr = get_pipectr(num); - *ctr = USB_PIPECTR_ACLRM | USB_PIPECTR_SQCLR; - *ctr = 0; - unsigned cfg = ((1 ^ dir_in) << 4) | epn; - if (xfer == TUSB_XFER_BULK) { - cfg |= USB_PIPECFG_BULK | USB_PIPECFG_SHTNAK | USB_PIPECFG_DBLB; - } else if (xfer == TUSB_XFER_INTERRUPT) { - cfg |= USB_PIPECFG_INT; - } else { - cfg |= USB_PIPECFG_ISO | USB_PIPECFG_DBLB; - } - USB0.PIPECFG.WORD = cfg; - USB0.BRDYSTS.WORD = 0x1FFu ^ TU_BIT(num); - USB0.NRDYENB.WORD |= TU_BIT(num); - USB0.BRDYENB.WORD |= TU_BIT(num); - if (!dir_in) { - *ctr = USB_PIPECTR_PID_BUF; - } - hcd_int_enable(rhport); - - return true; -} - -bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t *buffer, uint16_t buflen) -{ - bool r; - hcd_int_disable(rhport); - // TU_LOG1("X %d %x %u\n", dev_addr, ep_addr, buflen); - r = process_edpt_xfer(dev_addr, ep_addr, buffer, buflen); - hcd_int_enable(rhport); - return r; -} - -bool hcd_edpt_clear_stall(uint8_t dev_addr, uint8_t ep_addr) -{ - uint16_t volatile *ctr = addr_to_pipectr(dev_addr, ep_addr); - TU_ASSERT(ctr); - - const uint32_t pid = *ctr & 0x3; - if (pid & 2) { - *ctr = pid & 2; - *ctr = 0; - } - *ctr = USB_PIPECTR_SQCLR; - unsigned const epn = tu_edpt_number(ep_addr); - if (!epn) return true; - - if (!tu_edpt_dir(ep_addr)) { /* OUT */ - *ctr = USB_PIPECTR_PID_BUF; - } - return true; -} - -//--------------------------------------------------------------------+ -// ISR -//--------------------------------------------------------------------+ -void hcd_int_handler(uint8_t rhport) -{ - (void)rhport; -#if defined(__CCRX__) - static const int Mod37BitPosition[] = { - -1, 0, 1, 26, 2, 23, 27, 0, 3, 16, 24, 30, 28, 11, 0, 13, 4, - 7, 17, 0, 25, 22, 31, 15, 29, 10, 12, 6, 0, 21, 14, 9, 5, - 20, 8, 19, 18}; -#endif - - unsigned is1 = USB0.INTSTS1.WORD; - unsigned is0 = USB0.INTSTS0.WORD; - /* clear active bits except VALID (don't write 0 to already cleared bits according to the HW manual) */ - USB0.INTSTS1.WORD = ~((USB_IS1_SACK | USB_IS1_SIGN | USB_IS1_ATTCH | USB_IS1_DTCH) & is1); - USB0.INTSTS0.WORD = ~((USB_IS0_BRDY | USB_IS0_NRDY | USB_IS0_BEMP) & is0); - // TU_LOG1("IS %04x %04x\n", is0, is1); - is1 &= USB0.INTENB1.WORD; - is0 &= USB0.INTENB0.WORD; - - if (is1 & USB_IS1_SACK) { - /* Set DATA1 in advance for the next transfer. */ - USB0.DCPCTR.BIT.SQSET = 1; - hcd_event_xfer_complete(USB0.DCPMAXP.BIT.DEVSEL, - tu_edpt_addr(0, TUSB_DIR_OUT), - 8, XFER_RESULT_SUCCESS, true); - } - if (is1 & USB_IS1_SIGN) { - hcd_event_xfer_complete(USB0.DCPMAXP.BIT.DEVSEL, - tu_edpt_addr(0, TUSB_DIR_OUT), - 8, XFER_RESULT_FAILED, true); - } - if (is1 & USB_IS1_ATTCH) { - USB0.DVSTCTR0.BIT.UACT = 1; - _hcd.need_reset = true; - USB0.INTENB1.WORD = (USB0.INTENB1.WORD & ~USB_IS1_ATTCH) | USB_IS1_DTCH; - hcd_event_device_attach(rhport, true); - } - if (is1 & USB_IS1_DTCH) { - USB0.DVSTCTR0.BIT.UACT = 0; - if (USB0.DCPCTR.BIT.SUREQ) - USB0.DCPCTR.BIT.SUREQCLR = 1; - USB0.INTENB1.WORD = (USB0.INTENB1.WORD & ~USB_IS1_DTCH) | USB_IS1_ATTCH; - hcd_event_device_remove(rhport, true); - } - - if (is0 & USB_IS0_BEMP) { - const unsigned s = USB0.BEMPSTS.WORD; - USB0.BEMPSTS.WORD = 0; - if (s & 1) { - process_pipe0_bemp(rhport); - } - } - if (is0 & USB_IS0_NRDY) { - const unsigned m = USB0.NRDYENB.WORD; - unsigned s = USB0.NRDYSTS.WORD & m; - USB0.NRDYSTS.WORD = ~s; - while (s) { -#if defined(__CCRX__) - const unsigned num = Mod37BitPosition[(-s & s) % 37]; -#else - const unsigned num = __builtin_ctz(s); -#endif - process_pipe_nrdy(rhport, num); - s &= ~TU_BIT(num); - } - } - if (is0 & USB_IS0_BRDY) { - const unsigned m = USB0.BRDYENB.WORD; - unsigned s = USB0.BRDYSTS.WORD & m; - /* clear active bits (don't write 0 to already cleared bits according to the HW manual) */ - USB0.BRDYSTS.WORD = ~s; - while (s) { -#if defined(__CCRX__) - const unsigned num = Mod37BitPosition[(-s & s) % 37]; -#else - const unsigned num = __builtin_ctz(s); -#endif - process_pipe_brdy(rhport, num); - s &= ~TU_BIT(num); - } - } -} - -#endif -- cgit v1.3.1