blob: 0cb78b5a50748378cbed64001b02533ab5f032dd [file] [log] [blame]
/*
* Copyright (c) 2015 Travis Geiselbrecht
*
* 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.
*/
#include <reg.h>
#include <trace.h>
#include <debug.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <err.h>
#include <dev/usb.h>
#include <dev/usbc.h>
#include <arch/arm/cm.h>
#include <platform/stm32.h>
#define LOCAL_TRACE 0
#define NUM_EP 5
struct ep_status {
usbc_transfer_t *transfer;
};
static struct {
bool do_resched;
struct ep_status ep_in[NUM_EP];
struct ep_status ep_out[NUM_EP];
PCD_HandleTypeDef handle;
} usbc;
void stm32_usbc_early_init(void)
{
__HAL_RCC_USB_OTG_FS_CLK_ENABLE();
}
void stm32_usbc_init(void)
{
LTRACE_ENTRY;
/* Set LL Driver parameters */
usbc.handle.Instance = USB_OTG_FS;
usbc.handle.Init.dev_endpoints = 4;
usbc.handle.Init.use_dedicated_ep1 = 0;
usbc.handle.Init.ep0_mps = 0x40;
usbc.handle.Init.dma_enable = 0;
usbc.handle.Init.low_power_enable = 1;
usbc.handle.Init.phy_itface = PCD_PHY_EMBEDDED;
usbc.handle.Init.Sof_enable = 0;
usbc.handle.Init.speed = PCD_SPEED_FULL;
usbc.handle.Init.vbus_sensing_enable = 0;
usbc.handle.Init.lpm_enable = 0;
/* Link The driver to the stack */
//usbc.handle.pData = pdev;
//pdev->pData = &hpcd;
/* Initialize LL Driver */
HAL_PCD_Init(&usbc.handle);
HAL_PCDEx_SetRxFiFo(&usbc.handle, 0x80);
HAL_PCDEx_SetTxFiFo(&usbc.handle, 0, 0x40);
HAL_PCD_EP_Open(&usbc.handle, 0, 0x40, EP_TYPE_CTRL);
HAL_PCD_EP_Open(&usbc.handle, 0x80, 0x40, EP_TYPE_CTRL);
}
void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
LTRACEF("epnum %u\n", epnum);
if (usbc.ep_out[epnum].transfer) {
// completing a transfer
usbc_transfer_t *t = usbc.ep_out[epnum].transfer;
usbc.ep_out[epnum].transfer = NULL;
LTRACEF("completing transfer %p\n", t);
PCD_EPTypeDef *ep = &hpcd->OUT_ep[epnum];
t->bufpos = ep->xfer_count;
t->result = 0;
t->callback(epnum, t);
}
}
void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
PCD_EPTypeDef *ep = &hpcd->IN_ep[epnum];
LTRACEF("epnum %u, xfer count %u len %u\n", epnum, ep->xfer_count, ep->xfer_len);
if (epnum == 0) {
if (ep->xfer_count >= ep->xfer_len) {
// in transfer done, ready for receive status
HAL_PCD_EP_Receive(&usbc.handle, 0, 0, 0);
} else {
PANIC_UNIMPLEMENTED;
}
} else {
// in transfer done
if (usbc.ep_in[epnum].transfer) {
// completing a transfer
usbc_transfer_t *t = usbc.ep_in[epnum].transfer;
usbc.ep_in[epnum].transfer = NULL;
LTRACEF("completing transfer %p\n", t);
PCD_EPTypeDef *ep = &hpcd->IN_ep[epnum];
t->bufpos = ep->xfer_count;
t->result = 0;
t->callback(epnum, t);
}
}
}
void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
{
//LTRACE_ENTRY;
union usb_callback_args args;
args.setup = (struct usb_setup *)hpcd->Setup;
usbc_callback(USB_CB_SETUP_MSG, &args);
}
void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
{
LTRACE_ENTRY;
}
void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
{
LTRACE_ENTRY;
/* fail all the outstanding transactions */
for (uint i = 0; i < NUM_EP; i++) {
if (usbc.ep_in[i].transfer) {
usbc_transfer_t *t = usbc.ep_in[i].transfer;
usbc.ep_in[i].transfer = NULL;
t->result = ERR_CANCELLED;
t->callback(i, t);
}
if (usbc.ep_out[i].transfer) {
usbc_transfer_t *t = usbc.ep_out[i].transfer;
usbc.ep_out[i].transfer = NULL;
t->result = ERR_CANCELLED;
t->callback(i, t);
}
}
usbc_callback(USB_CB_RESET, NULL);
}
void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
{
LTRACE_ENTRY;
usbc_callback(USB_CB_SUSPEND, NULL);
}
void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
{
LTRACE_ENTRY;
usbc_callback(USB_CB_RESUME, NULL);
}
void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
LTRACEF("epnum %u\n", epnum);
}
void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
{
LTRACEF("epnum %u\n", epnum);
}
void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
{
LTRACE_ENTRY;
}
void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
{
LTRACE_ENTRY;
}
status_t usbc_set_active(bool active)
{
LTRACEF("active %u\n", active);
if (active) {
HAL_PCD_Start(&usbc.handle);
} else {
HAL_PCD_Stop(&usbc.handle);
}
return NO_ERROR;
}
void usbc_set_address(uint8_t address)
{
//LTRACEF("address %u\n", address);
HAL_PCD_SetAddress(&usbc.handle, address);
}
void usbc_ep0_ack(void)
{
LTRACE;
HAL_PCD_EP_Transmit(&usbc.handle, 0, 0, 0);
}
void usbc_ep0_stall(void)
{
LTRACE;
HAL_PCD_EP_SetStall(&usbc.handle, 0x80);
}
void usbc_ep0_send(const void *buf, size_t len, size_t maxlen)
{
LTRACEF("buf %p, len %zu, maxlen %zu\n", buf, len, maxlen);
HAL_PCD_EP_Transmit(&usbc.handle, 0, (void *)buf, MIN(len, maxlen));
}
void usbc_ep0_recv(void *buf, size_t len, ep_callback cb)
{
PANIC_UNIMPLEMENTED;
}
status_t usbc_setup_endpoint(ep_t ep, ep_dir_t dir, uint width)
{
LTRACEF("ep %u dir %u width %u\n", ep, dir, width);
DEBUG_ASSERT(ep <= NUM_EP);
HAL_StatusTypeDef ret = HAL_PCD_EP_Open(&usbc.handle, ep | ((dir == USB_IN) ? 0x80 : 0), width, EP_TYPE_BULK);
// XXX be a little smarter here
if (dir == USB_IN) {
HAL_PCDEx_SetTxFiFo(&usbc.handle, ep, width);
}
return (ret == HAL_OK) ? NO_ERROR : ERR_GENERIC;
}
bool usbc_is_highspeed(void)
{
return false;
}
status_t usbc_queue_rx(ep_t ep, usbc_transfer_t *transfer)
{
LTRACEF("ep %u, transfer %p (buf %p, buflen %zu)\n", ep, transfer, transfer->buf, transfer->buflen);
DEBUG_ASSERT(ep <= NUM_EP);
DEBUG_ASSERT(usbc.ep_out[ep].transfer == NULL);
usbc.ep_out[ep].transfer = transfer;
HAL_PCD_EP_Receive(&usbc.handle, ep, transfer->buf, transfer->buflen);
return NO_ERROR;
}
status_t usbc_queue_tx(ep_t ep, usbc_transfer_t *transfer)
{
LTRACEF("ep %u, transfer %p (buf %p, buflen %zu)\n", ep, transfer, transfer->buf, transfer->buflen);
DEBUG_ASSERT(ep <= NUM_EP);
DEBUG_ASSERT(usbc.ep_in[ep].transfer == NULL);
usbc.ep_in[ep].transfer = transfer;
HAL_PCD_EP_Transmit(&usbc.handle, ep, transfer->buf, transfer->buflen);
return NO_ERROR;
}
void stm32_OTG_FS_IRQ(void)
{
arm_cm_irq_entry();
//LTRACE_ENTRY;
usbc.do_resched = false;
HAL_PCD_IRQHandler(&usbc.handle);
arm_cm_irq_exit(usbc.do_resched);
}