mirror of
https://github.com/hathach/tinyusb.git
synced 2025-01-17 05:32:55 +08:00
Add HCD functions for KL25Z
This commit is contained in:
kkitayam
parent
ffb257ac17
commit
a4bc6075ce
@ -39,7 +39,12 @@
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//--------------------------------------------------------------------+
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void USB0_IRQHandler(void)
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{
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#if TUSB_OPT_HOST_ENABLED
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tuh_int_handler(0);
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#endif
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#if TUSB_OPT_DEVICE_ENABLED
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tud_int_handler(0);
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#endif
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}
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//--------------------------------------------------------------------+
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475
src/portable/nxp/khci/hcd_khci.c
Normal file
475
src/portable/nxp/khci/hcd_khci.c
Normal file
@ -0,0 +1,475 @@
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Koji Kitayama
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "tusb_option.h"
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#if TUSB_OPT_HOST_ENABLED && ( \
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( CFG_TUSB_MCU == OPT_MCU_MKL25ZXX ) || ( CFG_TUSB_MCU == OPT_MCU_K32L2BXX ) \
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)
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#include "fsl_device_registers.h"
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#define KHCI USB0
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#include "host/hcd.h"
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM DECLARATION
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//--------------------------------------------------------------------+
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enum {
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TOK_PID_OUT = 0x1u,
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TOK_PID_IN = 0x9u,
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TOK_PID_SETUP = 0xDu,
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TOK_PID_DATA0 = 0x3u,
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TOK_PID_DATA1 = 0xbu,
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TOK_PID_ACK = 0x2u,
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TOK_PID_STALL = 0xeu,
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TOK_PID_NAK = 0xau,
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TOK_PID_BUSTO = 0x0u,
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TOK_PID_ERR = 0xfu,
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};
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typedef struct TU_ATTR_PACKED
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{
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union {
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uint32_t head;
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struct {
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union {
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struct {
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uint16_t : 2;
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__IO uint16_t tok_pid : 4;
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uint16_t data : 1;
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__IO uint16_t own : 1;
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uint16_t : 8;
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};
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struct {
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uint16_t : 2;
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uint16_t bdt_stall : 1;
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uint16_t dts : 1;
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uint16_t ninc : 1;
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uint16_t keep : 1;
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uint16_t : 10;
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};
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};
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__IO uint16_t bc : 10;
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uint16_t : 6;
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};
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};
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uint8_t *addr;
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}buffer_descriptor_t;
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TU_VERIFY_STATIC( sizeof(buffer_descriptor_t) == 8, "size is not correct" );
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typedef struct TU_ATTR_PACKED
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{
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union {
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uint32_t state;
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struct {
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uint32_t max_packet_size :11;
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uint32_t : 5;
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uint32_t odd : 1;
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uint32_t :15;
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};
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};
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uint16_t length;
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uint16_t remaining;
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} endpoint_state_t;
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TU_VERIFY_STATIC( sizeof(endpoint_state_t) == 8, "size is not correct" );
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typedef struct TU_ATTR_PACKED
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{
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uint8_t dev_addr;
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uint8_t ep_addr;
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uint16_t max_packet_size;
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union {
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uint8_t flags;
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struct {
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uint8_t data : 1;
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uint8_t xfer : 2;
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uint8_t : 0;
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};
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};
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} pipe_state_t;
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typedef struct
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{
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union {
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/* [#EP][OUT,IN][EVEN,ODD] */
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buffer_descriptor_t bdt[16][2][2];
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uint16_t bda[512];
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};
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endpoint_state_t endpoint[2];
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pipe_state_t pipe[HCD_MAX_XFER];
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} hcd_data_t;
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//--------------------------------------------------------------------+
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// INTERNAL OBJECT & FUNCTION DECLARATION
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//--------------------------------------------------------------------+
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// BDT(Buffer Descriptor Table) must be 256-byte aligned
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CFG_TUSB_MEM_SECTION TU_ATTR_ALIGNED(512) static hcd_data_t _hcd;
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TU_VERIFY_STATIC( sizeof(_hcd.bdt) == 512, "size is not correct" );
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static pipe_state_t *find_pipe(uint8_t dev_addr, uint8_t ep_addr)
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{
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/* Find the target pipe */
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pipe_state_t *p = _hcd.pipe;
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pipe_state_t *end = p + HCD_MAX_XFER;
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for (;p != end; ++p) {
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if ((p->dev_addr == dev_addr) && (p->ep_addr != ep_addr))
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return p;
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}
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return NULL;
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}
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static int prepare_packets(uint8_t rhport, uint_fast8_t dir_in, uint8_t* buffer, uint_fast16_t total_bytes)
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{
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(void)rhport;
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const unsigned dir_tx = dir_in ? 0 : 1;
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endpoint_state_t *ep = &_hcd.endpoint[dir_tx];
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buffer_descriptor_t *bd = &_hcd.bdt[0][dir_tx][ep->odd];
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TU_ASSERT(0 == bd->own, 0);
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ep->length = total_bytes;
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ep->remaining = total_bytes;
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int num_pkts = 0; /* The number of prepared packets */
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const unsigned mps = ep->max_packet_size;
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if (total_bytes > mps) {
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buffer_descriptor_t *next = ep->odd ? bd - 1: bd + 1;
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/* When total_bytes is greater than the max packet size,
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* it prepares to the next transfer to avoid NAK in advance. */
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next->bc = total_bytes >= 2 * mps ? mps: total_bytes - mps;
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next->addr = buffer + mps;
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next->own = 1;
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++num_pkts;
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}
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bd->bc = total_bytes >= mps ? mps: total_bytes;
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bd->addr = buffer;
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__DSB();
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bd->own = 1; /* This bit must be set last */
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++num_pkts;
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return num_pkts;
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}
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static void process_tokdne(uint8_t rhport)
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{
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(void)rhport;
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const unsigned s = KHCI->STAT;
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KHCI->ISTAT = USB_ISTAT_TOKDNE_MASK; /* fetch the next token if received */
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uint8_t const epnum = (s >> USB_STAT_ENDP_SHIFT);
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TU_ASSERT(0 == epnum,);
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uint8_t const dir_in = (s & USB_STAT_TX_MASK) ? TUSB_DIR_OUT: TUSB_DIR_IN;
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unsigned const odd = (s & USB_STAT_ODD_MASK) ? 1 : 0;
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buffer_descriptor_t *bd = (buffer_descriptor_t *)&_hcd.bda[s];
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endpoint_state_t *ep = &_hcd.endpoint[s >> 3];
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/* fetch status before discarded by the next steps */
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const unsigned pid = bd->tok_pid;
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/* reset values for a next transfer */
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bd->bdt_stall = 0;
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bd->dts = 1;
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bd->ninc = 0;
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bd->keep = 0;
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/* Update the odd variable to prepare for the next transfer */
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ep->odd = odd ^ 1;
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const unsigned bc = bd->bc;
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const unsigned remaining = ep->remaining - bc;
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if ((TOK_PID_DATA0 == pid) || (TOK_PID_DATA1 == pid) || (TOK_PID_ACK == pid)) {
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/* Go on the next packet transfer */
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if (remaining && bc == ep->max_packet_size) {
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ep->remaining = remaining;
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const int next_remaining = remaining - ep->max_packet_size;
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if (next_remaining > 0) {
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/* Prepare to the after next transfer */
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bd->addr += ep->max_packet_size * 2;
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bd->bc = next_remaining > ep->max_packet_size ? ep->max_packet_size: next_remaining;
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__DSB();
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bd->own = 1; /* This bit must be set last */
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while (KHCI->CTL & USB_CTL_TXSUSPENDTOKENBUSY_MASK) ;
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KHCI->TOKEN = KHCI->TOKEN; /* Queue the same token as the last */
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}
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return;
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}
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}
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const unsigned length = ep->length;
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xfer_result_t result;
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switch (pid) {
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default:
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result = XFER_RESULT_SUCCESS;
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break;
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case TOK_PID_STALL:
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result = XFER_RESULT_STALLED;
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break;
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case TOK_PID_NAK:
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case TOK_PID_ERR:
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case TOK_PID_BUSTO:
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result = XFER_RESULT_FAILED;
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break;
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}
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hcd_event_xfer_complete(KHCI->ADDR & USB_ADDR_ADDR_MASK,
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tu_edpt_addr(KHCI->TOKEN & USB_TOKEN_TOKENENDPT_MASK, dir_in),
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length - remaining, result, true);
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}
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static void process_attach(uint8_t rhport)
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{
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unsigned ctl = KHCI->CTL;
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if (!(ctl & USB_CTL_JSTATE_MASK)) {
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/* The attached device is a low speed device. */
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KHCI->ADDR = USB_ADDR_LSEN_MASK;
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KHCI->ENDPOINT[0].ENDPT = USB_ENDPT_HOSTWOHUB_MASK;
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}
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hcd_event_device_attach(rhport, true);
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}
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/*------------------------------------------------------------------*/
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/* Host API
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*------------------------------------------------------------------*/
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bool hcd_init(uint8_t rhport)
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{
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(void)rhport;
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KHCI->USBTRC0 |= USB_USBTRC0_USBRESET_MASK;
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while (KHCI->USBTRC0 & USB_USBTRC0_USBRESET_MASK);
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tu_memclr(&_hcd, sizeof(_hcd));
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KHCI->USBTRC0 |= TU_BIT(6); /* software must set this bit to 1 */
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KHCI->BDTPAGE1 = (uint8_t)((uintptr_t)_hcd.bdt >> 8);
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KHCI->BDTPAGE2 = (uint8_t)((uintptr_t)_hcd.bdt >> 16);
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KHCI->BDTPAGE3 = (uint8_t)((uintptr_t)_hcd.bdt >> 24);
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KHCI->USBCTRL &= ~USB_USBCTRL_SUSP_MASK;
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KHCI->CTL |= USB_CTL_ODDRST_MASK;
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for (unsigned i = 0; i < 16; ++i) {
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KHCI->ENDPOINT[i].ENDPT = 0;
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}
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const endpoint_state_t ep0 = {
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.max_packet_size = CFG_TUD_ENDPOINT0_SIZE,
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.odd = 0,
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.length = 0,
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.remaining = 0,
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};
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_hcd.endpoint[0] = ep0;
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_hcd.endpoint[1] = ep0;
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KHCI->CTL &= ~USB_CTL_ODDRST_MASK;
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KHCI->SOFTHLD = 74; /* for 64-byte packets */
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KHCI->CTL = USB_CTL_HOSTMODEEN_MASK | USB_CTL_SE0_MASK;
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KHCI->USBCTRL = USB_USBCTRL_PDE_MASK;
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NVIC_ClearPendingIRQ(USB0_IRQn);
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KHCI->INTEN = USB_INTEN_ATTACHEN_MASK;
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return true;
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}
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void hcd_int_enable(uint8_t rhport)
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{
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(void)rhport;
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NVIC_EnableIRQ(USB0_IRQn);
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}
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void hcd_int_disable(uint8_t rhport)
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{
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(void)rhport;
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NVIC_DisableIRQ(USB0_IRQn);
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}
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uint32_t hcd_frame_number(uint8_t rhport)
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{
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(void)rhport;
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uint32_t frmnum = KHCI->FRMNUML;
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frmnum |= KHCI->FRMNUMH << 8u;
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return frmnum;
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}
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/*--------------------------------------------------------------------+
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* Port API
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*--------------------------------------------------------------------+ */
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bool hcd_port_connect_status(uint8_t rhport)
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{
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(void)rhport;
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return false;
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}
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void hcd_port_reset(uint8_t rhport)
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{
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(void)rhport;
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KHCI->CTL &= ~USB_CTL_USBENSOFEN_MASK;
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KHCI->CTL |= USB_CTL_RESET_MASK;
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unsigned cnt = SystemCoreClock / 100;
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while (cnt--) __NOP();
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KHCI->CTL &= ~USB_CTL_RESET_MASK;
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KHCI->CTL |= USB_CTL_USBENSOFEN_MASK;
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}
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tusb_speed_t hcd_port_speed_get(uint8_t rhport)
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{
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(void)rhport;
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tusb_speed_t speed = TUSB_SPEED_FULL;
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const unsigned ie = NVIC_GetEnableIRQ(USB0_IRQn);
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NVIC_DisableIRQ(USB0_IRQn);
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if (KHCI->ADDR & USB_ADDR_LSEN_MASK)
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speed = TUSB_SPEED_LOW;
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if (ie) NVIC_EnableIRQ(USB0_IRQn);
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return speed;
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}
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void hcd_device_close(uint8_t rhport, uint8_t dev_addr)
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{
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(void)rhport;
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pipe_state_t *p = _hcd.pipe;
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pipe_state_t *end = p + HCD_MAX_XFER;
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for (;p != end; ++p) {
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if (p->dev_addr == dev_addr)
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tu_memclr(p, sizeof(*p));
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}
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}
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//--------------------------------------------------------------------+
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// Endpoints API
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//--------------------------------------------------------------------+
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bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8])
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{
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(void)rhport;
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const unsigned rx_odd = _hcd.endpoint[0].odd;
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const unsigned tx_odd = _hcd.endpoint[1].odd;
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TU_ASSERT(0 == _hcd.bdt[0][0][tx_odd].own);
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const unsigned ie = NVIC_GetEnableIRQ(USB0_IRQn);
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NVIC_DisableIRQ(USB0_IRQn);
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_hcd.bdt[0][0][rx_odd ].data = 1;
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_hcd.bdt[0][0][rx_odd ^ 1].data = 0;
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_hcd.bdt[0][1][tx_odd ].data = 0;
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_hcd.bdt[0][1][tx_odd ^ 1].data = 1;
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unsigned hostwohub = KHCI->ENDPOINT[0].ENDPT & USB_ENDPT_HOSTWOHUB_MASK;
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KHCI->ENDPOINT[0].ENDPT = hostwohub |
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USB_ENDPT_EPHSHK_MASK | USB_ENDPT_EPRXEN_MASK | USB_ENDPT_EPTXEN_MASK;
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bool ret = false;
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if (prepare_packets(rhport, TUSB_DIR_OUT, (void*)(uintptr_t)setup_packet, 8)) {
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KHCI->ADDR = (KHCI->ADDR & USB_ADDR_LSEN_MASK) | dev_addr;
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while (KHCI->CTL & USB_CTL_TXSUSPENDTOKENBUSY_MASK) ;
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KHCI->TOKEN = (TOK_PID_SETUP << USB_TOKEN_TOKENPID_SHIFT);
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ret = true;
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}
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if (ie) NVIC_EnableIRQ(USB0_IRQn);
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return ret;
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}
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bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const * ep_desc)
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{
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(void)rhport;
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/* Find a free pipe */
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pipe_state_t *p = _hcd.pipe;
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pipe_state_t *end = p + HCD_MAX_XFER;
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for (;p < end && p->dev_addr; ++p) ;
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if (p == end) return false;
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p->dev_addr = dev_addr;
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p->ep_addr = ep_desc->bEndpointAddress;
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p->max_packet_size = ep_desc->wMaxPacketSize;
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p->xfer = ep_desc->bmAttributes.xfer;
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p->data = 0;
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return true;
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}
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bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t buflen)
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{
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(void)rhport;
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const unsigned dir_in = tu_edpt_dir(ep_addr);
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const unsigned odd = _hcd.endpoint[dir_in ^ 1].odd;
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buffer_descriptor_t *bd = _hcd.bdt[0][dir_in ^ 1];
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TU_ASSERT(0 == bd[odd].own);
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unsigned flags = USB_ENDPT_EPHSHK_MASK | USB_ENDPT_EPRXEN_MASK | USB_ENDPT_EPTXEN_MASK;
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if (tu_edpt_number(ep_addr)) {
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pipe_state_t *p = find_pipe(dev_addr, ep_addr);
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if (!p) return false;
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bd[odd ].data = p->data;
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bd[odd ^ 1].data = p->data ^ 1;
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bd[odd ^ 1].own = 0;
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flags |= USB_ENDPT_EPCTLDIS_MASK;
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/* Disable retry for a interrupt transfer. */
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if (TUSB_XFER_INTERRUPT == p->xfer)
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flags |= USB_ENDPT_RETRYDIS_MASK;
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}
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unsigned hostwohub = KHCI->ENDPOINT[0].ENDPT & USB_ENDPT_HOSTWOHUB_MASK;
|
||||
KHCI->ENDPOINT[0].ENDPT = hostwohub | flags;
|
||||
int num_pkts = prepare_packets(rhport, dir_in, buffer, buflen);
|
||||
if (!num_pkts) return false;
|
||||
KHCI->ADDR = (KHCI->ADDR & USB_ADDR_LSEN_MASK) | dev_addr;
|
||||
const unsigned token = tu_edpt_number(ep_addr) |
|
||||
((dir_in ? TOK_PID_IN: TOK_PID_OUT) << USB_TOKEN_TOKENPID_SHIFT);
|
||||
const unsigned ie = NVIC_GetEnableIRQ(USB0_IRQn);
|
||||
NVIC_DisableIRQ(USB0_IRQn);
|
||||
do {
|
||||
while (KHCI->CTL & USB_CTL_TXSUSPENDTOKENBUSY_MASK) ;
|
||||
KHCI->TOKEN = token;
|
||||
} while (--num_pkts);
|
||||
if (ie) NVIC_EnableIRQ(USB0_IRQn);
|
||||
return true;
|
||||
}
|
||||
|
||||
bool hcd_edpt_clear_stall(uint8_t dev_addr, uint8_t ep_addr)
|
||||
{
|
||||
if (!tu_edpt_number(ep_addr)) return true;
|
||||
pipe_state_t *p = find_pipe(dev_addr, ep_addr);
|
||||
if (!p) return false;
|
||||
p->data = 0; /* Reset data toggle */
|
||||
return true;
|
||||
}
|
||||
|
||||
/*--------------------------------------------------------------------+
|
||||
* ISR
|
||||
*--------------------------------------------------------------------+*/
|
||||
void hcd_int_handler(uint8_t rhport)
|
||||
{
|
||||
uint32_t is = KHCI->ISTAT;
|
||||
uint32_t msk = KHCI->INTEN;
|
||||
|
||||
/* clear disabled interrupts */
|
||||
KHCI->ISTAT = is & ~msk;
|
||||
is &= msk;
|
||||
|
||||
if (is & USB_ISTAT_ATTACH_MASK) {
|
||||
process_attach(rhport);
|
||||
}
|
||||
if (is & USB_ISTAT_STALL_MASK) {
|
||||
KHCI->ISTAT = USB_ISTAT_STALL_MASK;
|
||||
}
|
||||
if (is & USB_ISTAT_TOKDNE_MASK) {
|
||||
process_tokdne(rhport);
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
Loading…
x
Reference in New Issue
Block a user