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restructuring

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Edward Emelianov
2022-03-10 11:04:14 +03:00
parent 29560b7c0c
commit 733dbd75d2
1758 changed files with 14 additions and 26855 deletions
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F1:F103/USB_HID/usb.c Normal file
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/*
* geany_encoding=koi8-r
* usb.c - base functions for different USB types
*
* Copyright 2018 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*/
#include "keycodes.h"
#include "usb.h"
#include "usb_lib.h"
#include "usart.h"
static volatile uint8_t tx_succesfull = 1;
// interrupt IN handler
static void EP1_Handler(){
uint16_t epstatus = KEEP_DTOG(USB->EPnR[1]);
if(RX_FLAG(epstatus)) epstatus = (epstatus & ~USB_EPnR_STAT_TX) ^ USB_EPnR_STAT_RX; // set valid RX
else{
tx_succesfull = 1;
epstatus = epstatus & ~(USB_EPnR_STAT_TX|USB_EPnR_STAT_RX);
}
// clear CTR
epstatus = (epstatus & ~(USB_EPnR_CTR_RX|USB_EPnR_CTR_TX));
USB->EPnR[1] = epstatus;
}
void USB_setup(){
NVIC_DisableIRQ(USB_LP_CAN1_RX0_IRQn);
NVIC_DisableIRQ(USB_HP_CAN1_TX_IRQn);
DBG("USB setup");
RCC->APB1ENR |= RCC_APB1ENR_USBEN;
USB->CNTR = USB_CNTR_FRES; // Force USB Reset
for(uint32_t ctr = 0; ctr < 72000; ++ctr) nop(); // wait >1ms
USB->CNTR = 0;
USB->BTABLE = 0;
USB->DADDR = 0;
USB->ISTR = 0;
USB->CNTR = USB_CNTR_RESETM | USB_CNTR_WKUPM; // allow only wakeup & reset interrupts
NVIC_EnableIRQ(USB_LP_CAN1_RX0_IRQn);
}
void usb_proc(){
if(USB_Dev.USB_Status == USB_STATE_CONFIGURED){ // USB configured - activate other endpoints
if(!usbON){ // endpoints not activated
EP_Init(1, EP_TYPE_INTERRUPT, USB_TXBUFSZ, 0, EP1_Handler); // IN1 - transmit
usbON = 1;
}
}else{
usbON = 0;
}
}
void USB_send(uint8_t *buf, uint16_t size){
if(!usbON || !size) return;
uint16_t ctr = 0;
while(size){
uint16_t s = (size > USB_KEYBOARD_REPORT_SIZE) ? USB_KEYBOARD_REPORT_SIZE : size;
tx_succesfull = 0;
EP_Write(1, (uint8_t*)&buf[ctr], s);
uint32_t ctra = 1000000;
while(--ctra && tx_succesfull == 0){
IWDG->KR = IWDG_REFRESH;
}
if(!tx_succesfull){
DBG("Error sending data!");
}
size -= s;
ctr += s;
}
}