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USBHOST hub support for TARGET_STM #4231

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May 15, 2017
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87 changes: 65 additions & 22 deletions features/unsupported/USBHost/USBHost/TARGET_STM/USBEndpoint_STM.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -19,10 +19,17 @@
#include "USBEndpoint.h"
extern uint32_t HAL_HCD_HC_GetMaxPacket(HCD_HandleTypeDef *hhcd, uint8_t chn_num);
extern uint32_t HAL_HCD_HC_GetType(HCD_HandleTypeDef *hhcd, uint8_t chn_num);
extern void HAL_HCD_DisableInt(HCD_HandleTypeDef* hhcd, uint8_t chn_num);
extern void HAL_HCD_EnableInt(HCD_HandleTypeDef* hhcd, uint8_t chn_num);




void USBEndpoint::init(HCED * hced_, ENDPOINT_TYPE type_, ENDPOINT_DIRECTION dir_, uint32_t size, uint8_t ep_number, HCTD* td_list_[2])
{
HCD_HandleTypeDef *hhcd;
uint32_t *addr;

hced = hced_;
type = type_;
dir = dir_;
Expand All @@ -46,10 +53,14 @@ void USBEndpoint::init(HCED * hced_, ENDPOINT_TYPE type_, ENDPOINT_DIRECTION dir

td_current = td_list[0];
td_next = td_list[1];

/* remove potential post pending from previous endpoint */
ep_queue.get(0);
intf_nb = 0;

hhcd = (HCD_HandleTypeDef*)hced->hhcd;
addr = &((uint32_t *)hhcd->pData)[hced->ch_num];
*addr = 0;
state = USB_TYPE_IDLE;
speed =false;
}
void USBEndpoint::setSize(uint32_t size)
{
Expand All @@ -59,8 +70,16 @@ void USBEndpoint::setSize(uint32_t size)

void USBEndpoint::setDeviceAddress(uint8_t addr)
{
HCD_HandleTypeDef *hhcd;
uint8_t hcd_speed = HCD_SPEED_FULL;
/* fix me : small speed device with hub not supported
if (this->speed) hcd_speed = HCD_SPEED_LOW; */
if (this->speed) {
USB_WARN("small speed device on hub not supported");
}
MBED_ASSERT(HAL_HCD_HC_Init((HCD_HandleTypeDef*)hced->hhcd,hced->ch_num, address, addr, hcd_speed, type, size)!=HAL_BUSY);
this->device_address = addr;
HAL_HCD_HC_Init((HCD_HandleTypeDef*)hced->hhcd,hced->ch_num, address, addr, HCD_SPEED_FULL, type, size);

}

void USBEndpoint::setSpeed(uint8_t speed)
Expand All @@ -70,58 +89,82 @@ void USBEndpoint::setSpeed(uint8_t speed)



void USBEndpoint::setState(uint8_t st) {
if (st > 18)
void USBEndpoint::setState(USB_TYPE st)
{
/* modify this state is possible only with a plug */
if (state == USB_TYPE_FREE) {
return;
if (state == USB_TYPE_FREE) HAL_HCD_HC_Halt((HCD_HandleTypeDef*)hced->hhcd, hced->ch_num);
}

state = st;
if (st == USB_TYPE_FREE) {
HCD_HandleTypeDef *hhcd = (HCD_HandleTypeDef*)hced->hhcd;
uint32_t *addr = &((uint32_t *)hhcd->pData)[hced->ch_num];
if ((*addr) && (type != INTERRUPT_ENDPOINT)) {
this->ep_queue.put((uint8_t*)1);
}
MBED_ASSERT(HAL_HCD_HC_Halt((HCD_HandleTypeDef*)hced->hhcd, hced->ch_num)!=HAL_BUSY);
HAL_HCD_DisableInt((HCD_HandleTypeDef*)hced->hhcd, hced->ch_num);
*addr = 0;

state = (USB_TYPE)st;
}
if (st == USB_TYPE_ERROR) {
MBED_ASSERT(HAL_HCD_HC_Halt((HCD_HandleTypeDef*)hced->hhcd, hced->ch_num)!=HAL_BUSY);
HAL_HCD_DisableInt((HCD_HandleTypeDef*)hced->hhcd, hced->ch_num);

}
if (st == USB_TYPE_ERROR) {
uint8_t hcd_speed = HCD_SPEED_FULL;
/* small speed device with hub not supported
if (this->speed) hcd_speed = HCD_SPEED_LOW;*/
MBED_ASSERT(HAL_HCD_HC_Init((HCD_HandleTypeDef*)hced->hhcd,hced->ch_num, address, 0, hcd_speed, type, size)!=HAL_BUSY);
}
}


extern uint32_t HAL_HCD_HC_GetMaxPacket(HCD_HandleTypeDef *hhcd, uint8_t chn_num);
extern uint32_t HAL_HCD_HC_GetType(HCD_HandleTypeDef *hhcd, uint8_t chn_num);


USB_TYPE USBEndpoint::queueTransfer()
{
HCD_HandleTypeDef *hhcd = (HCD_HandleTypeDef*)hced->hhcd;
uint32_t *addr = &((uint32_t *)hhcd->pData)[hced->ch_num];
uint32_t type = HAL_HCD_HC_GetType(hhcd, hced->ch_num);
uint32_t max_size = HAL_HCD_HC_GetMaxPacket(hhcd, hced->ch_num);
/* if a packet is queue on disconnected ; no solution for now */
if(*addr == (uint32_t) -1) {
/* set td as disconnected */
td_current->state = USB_TYPE_DISCONNECTED;
return USB_TYPE_DISCONNECTED;
if (state == USB_TYPE_FREE) {
td_current->state = USB_TYPE_FREE;
return USB_TYPE_FREE;
}
ep_queue.get(0);
MBED_ASSERT(*addr ==0);
if ((type == EP_TYPE_BULK) || (type== EP_TYPE_CTRL)) {
transfer_len = td_current->size <= max_size ? td_current->size : max_size;
transferred = td_current->size;
} else {
transfer_len = td_current->size;
transferred = td_current->size;
MBED_ASSERT(transferred <= (int)max_size);
}
transfer_len = td_current->size <= max_size ? td_current->size : max_size;
buf_start = (uint8_t *)td_current->currBufPtr;

//Now add this free TD at this end of the queue
state = USB_TYPE_PROCESSING;
/* one request */
td_current->nextTD = (hcTd*)0;

#if defined(MAX_NYET_RETRY)
td_current->retry = 0;
#endif
td_current->setup = setup;
*addr = (uint32_t)td_current;
/* dir /setup is inverted for ST */
/* token is useful only ctrl endpoint */
/* last parameter is ping ? */
MBED_ASSERT(HAL_HCD_HC_SubmitRequest((HCD_HandleTypeDef*)hced->hhcd, hced->ch_num, dir-1, type,!setup,(uint8_t*) td_current->currBufPtr, transfer_len, 0)==HAL_OK);
HAL_HCD_EnableInt((HCD_HandleTypeDef*)hced->hhcd, hced->ch_num);

return USB_TYPE_PROCESSING;
}

void USBEndpoint::unqueueTransfer(volatile HCTD * td)
{

if (state==USB_TYPE_FREE) {
return;
}
uint32_t *addr = &((uint32_t *)((HCD_HandleTypeDef*)hced->hhcd)->pData)[hced->ch_num];
td->state=0;
td->currBufPtr=0;
Expand Down
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