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Add USB CDC and loop-back test

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fruchti 2020-10-11 22:37:46 +02:00
commit 7234eb8360
34 changed files with 15808 additions and 0 deletions
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91
stm32f103c8t6/src/usb_util.h Normal file
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#pragma once
#include "usb.h"
static inline void USB_SetEPR(volatile uint16_t *EPR, uint16_t status)
{
// Caution: This function does a read-modify-write and is prone to
// unexpected behaviour when there are transactions going one, because the
// register contents might change during the funciton's execution. Thus,
// only use this function in initialisation code!
volatile uint16_t v = *EPR;
status ^= v & (USB_EP0R_DTOG_RX | USB_EP0R_STAT_RX |\
USB_EP0R_DTOG_TX | USB_EP0R_STAT_TX);
*EPR = status;
}
static inline void USB_SetEPRXStatus(volatile uint16_t *EPR, uint16_t status)
{
uint16_t v = *EPR;
v ^= status & USB_EP0R_STAT_RX;
v &= USB_EP0R_CTR_RX | USB_EP0R_EP_TYPE | USB_EP0R_EP_KIND | USB_EP0R_CTR_TX
| USB_EP0R_EA | USB_EP0R_STAT_RX;
*EPR = v;
}
static inline void USB_SetEPTXStatus(volatile uint16_t *EPR, uint16_t status)
{
uint16_t v = *EPR;
v ^= status & USB_EP0R_STAT_TX;
v &= USB_EP0R_CTR_RX | USB_EP0R_EP_TYPE | USB_EP0R_EP_KIND | USB_EP0R_CTR_TX
| USB_EP0R_EA | USB_EP0R_STAT_TX;
*EPR = v;
}
static inline void USB_SetEPType(volatile uint16_t *EPR, uint16_t type)
{
uint16_t v = *EPR;
v &= USB_EP0R_CTR_RX | USB_EP0R_EP_KIND | USB_EP0R_CTR_TX | USB_EP0R_EA;
v |= USB_EP0R_EP_TYPE & type;
*EPR = v;
}
static inline void USB_SetEPAddress(volatile uint16_t *EPR, uint16_t address)
{
uint16_t v = *EPR;
v &= USB_EP0R_CTR_RX | USB_EP0R_EP_TYPE | USB_EP0R_EP_KIND
| USB_EP0R_CTR_TX;
v |= USB_EP0R_EA & address;
*EPR = v;
}
static inline void USB_SetEPKind(volatile uint16_t *EPR)
{
uint16_t v = *EPR;
v &= USB_EP0R_CTR_RX | USB_EP0R_EP_TYPE | USB_EP0R_CTR_TX | USB_EP0R_EA;
v |= USB_EP0R_EP_KIND;
*EPR = v;
}
static inline void USB_ClearEPKind(volatile uint16_t *EPR)
{
uint16_t v = *EPR;
v &= USB_EP0R_CTR_RX | USB_EP0R_EP_TYPE | USB_EP0R_CTR_TX | USB_EP0R_EA;
*EPR = v;
}
static inline void USB_ClearEPCTRX(volatile uint16_t *EPR)
{
uint16_t v = *EPR;
v &= USB_EP0R_EP_TYPE | USB_EP0R_EP_KIND | USB_EP0R_CTR_TX | USB_EP0R_EA;
*EPR = v;
}
static inline void USB_ClearEPCTTX(volatile uint16_t *EPR)
{
uint16_t v = *EPR;
v &= USB_EP0R_CTR_RX | USB_EP0R_EP_TYPE | USB_EP0R_EP_KIND | USB_EP0R_EA;
*EPR = v;
}
static inline void USB_Delay(unsigned int delay)
{
SysTick->LOAD = delay;
SysTick->VAL = 0;
SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk;
while(!((SysTick->CTRL) & SysTick_CTRL_COUNTFLAG_Msk));
SysTick->CTRL = 0;
}
void USB_PMAToMemory(void *mem, uint16_t offset, size_t length);
void USB_MemoryToPMA(uint16_t offset, const void *mem, size_t length);