fsdev_ch32.h

Go to the documentation of this file.

/*
* The MIT License (MIT)
 *
 * Copyright (c) 2024, hathach (tinyusb.org)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */
#ifndef TUSB_FSDEV_CH32_H
#define TUSB_FSDEV_CH32_H
 
#include "common/tusb_compiler.h"
 
// https://github.com/openwch/ch32v307/pull/90
// https://github.com/openwch/ch32v20x/pull/12
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wstrict-prototypes"
#endif
 
#if CFG_TUSB_MCU == OPT_MCU_CH32F20X
  #include <ch32f20x.h>
#elif CFG_TUSB_MCU == OPT_MCU_CH32V20X
  #include <ch32v20x.h>
#endif
 
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
 
#define FSDEV_PMA_SIZE (512u)
#define FSDEV_REG_BASE  (APB1PERIPH_BASE + 0x00005C00UL)
#define FSDEV_PMA_BASE  (APB1PERIPH_BASE + 0x00006000UL)
 
/****************************  ISTR interrupt events  *************************/
#define USB_ISTR_CTR                         ((uint16_t)0x8000U)               
#define USB_ISTR_PMAOVR                      ((uint16_t)0x4000U)               
#define USB_ISTR_ERR                         ((uint16_t)0x2000U)               
#define USB_ISTR_WKUP                        ((uint16_t)0x1000U)               
#define USB_ISTR_SUSP                        ((uint16_t)0x0800U)               
#define USB_ISTR_RESET                       ((uint16_t)0x0400U)               
#define USB_ISTR_SOF                         ((uint16_t)0x0200U)               
#define USB_ISTR_ESOF                        ((uint16_t)0x0100U)               
#define USB_ISTR_DIR                         ((uint16_t)0x0010U)               
#define USB_ISTR_EP_ID                       ((uint16_t)0x000FU)               
/* Legacy defines */
#define USB_ISTR_PMAOVRM USB_ISTR_PMAOVR
 
#define USB_CLR_CTR                          (~USB_ISTR_CTR)             
#define USB_CLR_PMAOVR                       (~USB_ISTR_PMAOVR)          
#define USB_CLR_ERR                          (~USB_ISTR_ERR)             
#define USB_CLR_WKUP                         (~USB_ISTR_WKUP)            
#define USB_CLR_SUSP                         (~USB_ISTR_SUSP)            
#define USB_CLR_RESET                        (~USB_ISTR_RESET)           
#define USB_CLR_SOF                          (~USB_ISTR_SOF)             
#define USB_CLR_ESOF                         (~USB_ISTR_ESOF)            
/* Legacy defines */
#define USB_CLR_PMAOVRM USB_CLR_PMAOVR
 
/*************************  CNTR control register bits definitions  ***********/
#define USB_CNTR_CTRM                        ((uint16_t)0x8000U)               
#define USB_CNTR_PMAOVR                      ((uint16_t)0x4000U)               
#define USB_CNTR_ERRM                        ((uint16_t)0x2000U)               
#define USB_CNTR_WKUPM                       ((uint16_t)0x1000U)               
#define USB_CNTR_SUSPM                       ((uint16_t)0x0800U)               
#define USB_CNTR_RESETM                      ((uint16_t)0x0400U)               
#define USB_CNTR_SOFM                        ((uint16_t)0x0200U)               
#define USB_CNTR_ESOFM                       ((uint16_t)0x0100U)               
#define USB_CNTR_RESUME                      ((uint16_t)0x0010U)               
#define USB_CNTR_FSUSP                       ((uint16_t)0x0008U)               
#define USB_CNTR_LPMODE                      ((uint16_t)0x0004U)               
#define USB_CNTR_PDWN                        ((uint16_t)0x0002U)               
#define USB_CNTR_FRES                        ((uint16_t)0x0001U)               
/* Legacy defines */
#define USB_CNTR_PMAOVRM USB_CNTR_PMAOVR
#define USB_CNTR_LP_MODE USB_CNTR_LPMODE
 
/********************  FNR Frame Number Register bit definitions   ************/
#define USB_FNR_RXDP                         ((uint16_t)0x8000U)               
#define USB_FNR_RXDM                         ((uint16_t)0x4000U)               
#define USB_FNR_LCK                          ((uint16_t)0x2000U)               
#define USB_FNR_LSOF                         ((uint16_t)0x1800U)               
#define USB_FNR_FN                           ((uint16_t)0x07FFU)               
/********************  DADDR Device ADDRess bit definitions    ****************/
#define USB_DADDR_EF                         ((uint8_t)0x80U)                  
#define USB_DADDR_ADD                        ((uint8_t)0x7FU)                  
/******************************  Endpoint register    *************************/
#define USB_EP0R                             USB_BASE                    
#define USB_EP1R                             (USB_BASE + 0x04U)           
#define USB_EP2R                             (USB_BASE + 0x08U)           
#define USB_EP3R                             (USB_BASE + 0x0CU)           
#define USB_EP4R                             (USB_BASE + 0x10U)           
#define USB_EP5R                             (USB_BASE + 0x14U)           
#define USB_EP6R                             (USB_BASE + 0x18U)           
#define USB_EP7R                             (USB_BASE + 0x1CU)           
/* bit positions */
#define USB_EP_CTR_RX                        ((uint16_t)0x8000U)               
#define USB_EP_DTOG_RX                       ((uint16_t)0x4000U)               
#define USB_EPRX_STAT                        ((uint16_t)0x3000U)               
#define USB_EP_SETUP                         ((uint16_t)0x0800U)               
#define USB_EP_T_FIELD                       ((uint16_t)0x0600U)               
#define USB_EP_KIND                          ((uint16_t)0x0100U)               
#define USB_EP_CTR_TX                        ((uint16_t)0x0080U)               
#define USB_EP_DTOG_TX                       ((uint16_t)0x0040U)               
#define USB_EPTX_STAT                        ((uint16_t)0x0030U)               
#define USB_EPADDR_FIELD                     ((uint16_t)0x000FU)               
/* EndPoint REGister MASK (no toggle fields) */
#define USB_EPREG_MASK     (USB_EP_CTR_RX|USB_EP_SETUP|USB_EP_T_FIELD|USB_EP_KIND|USB_EP_CTR_TX|USB_EPADDR_FIELD)
#define USB_EP_TYPE_MASK                     ((uint16_t)0x0600U)               
#define USB_EP_BULK                          ((uint16_t)0x0000U)               
#define USB_EP_CONTROL                       ((uint16_t)0x0200U)               
#define USB_EP_ISOCHRONOUS                   ((uint16_t)0x0400U)               
#define USB_EP_INTERRUPT                     ((uint16_t)0x0600U)               
#define USB_EP_T_MASK                        ((uint16_t) ~USB_EP_T_FIELD & USB_EPREG_MASK)
 
#define USB_EPKIND_MASK                      ((uint16_t) ~USB_EP_KIND & USB_EPREG_MASK)            
#define USB_EP_TX_DIS                        ((uint16_t)0x0000U)               
#define USB_EP_TX_STALL                      ((uint16_t)0x0010U)               
#define USB_EP_TX_NAK                        ((uint16_t)0x0020U)               
#define USB_EP_TX_VALID                      ((uint16_t)0x0030U)               
#define USB_EPTX_DTOG1                       ((uint16_t)0x0010U)               
#define USB_EPTX_DTOG2                       ((uint16_t)0x0020U)               
#define USB_EPTX_DTOGMASK  (USB_EPTX_STAT|USB_EPREG_MASK)
#define USB_EP_RX_DIS                        ((uint16_t)0x0000U)               
#define USB_EP_RX_STALL                      ((uint16_t)0x1000U)               
#define USB_EP_RX_NAK                        ((uint16_t)0x2000U)               
#define USB_EP_RX_VALID                      ((uint16_t)0x3000U)               
#define USB_EPRX_DTOG1                       ((uint16_t)0x1000U)               
#define USB_EPRX_DTOG2                       ((uint16_t)0x2000U)               
#define USB_EPRX_DTOGMASK  (USB_EPRX_STAT|USB_EPREG_MASK)
 
 
//--------------------------------------------------------------------+
//
//--------------------------------------------------------------------+
 
#if CFG_TUSB_MCU == OPT_MCU_CH32V20X
static const IRQn_Type fsdev_irq[] = {
  USB_HP_CAN1_TX_IRQn,
  USB_LP_CAN1_RX0_IRQn,
  USBWakeUp_IRQn
};
enum { FSDEV_IRQ_NUM = TU_ARRAY_SIZE(fsdev_irq) };
#else
  #error "Unsupported MCU"
#endif
 
void dcd_int_enable(uint8_t rhport) {
  (void)rhport;
  for(uint8_t i=0; i < FSDEV_IRQ_NUM; i++) {
    NVIC_EnableIRQ(fsdev_irq[i]);
  }
}
 
void dcd_int_disable(uint8_t rhport) {
  (void)rhport;
  for(uint8_t i=0; i < FSDEV_IRQ_NUM; i++) {
    NVIC_DisableIRQ(fsdev_irq[i]);
  }
}
 
void dcd_disconnect(uint8_t rhport) {
  (void) rhport;
  EXTEN->EXTEN_CTR &= ~EXTEN_USBD_PU_EN;
}
 
void dcd_connect(uint8_t rhport) {
  (void) rhport;
  EXTEN->EXTEN_CTR |= EXTEN_USBD_PU_EN;
}
 
#endif