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/*
* Copyright (c) 2025, sakumisu
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "usbotg_core.h"
struct usbotg_core_priv {
uint8_t busid;
uint32_t reg_base;
usb_osal_sem_t change_sem;
usb_osal_thread_t change_thread;
bool usbh_initialized;
bool usbd_initialized;
int (*usbh_initialize)(uint8_t busid, uint32_t reg_base);
int (*usbd_initialize)(uint8_t busid, uint32_t reg_base);
} g_usbotg_core[CONFIG_USBHOST_MAX_BUS];
static void usbotg_host_initialize(uint8_t busid)
{
if (g_usbotg_core[busid].usbd_initialized) {
g_usbotg_core[busid].usbd_initialized = false;
usbd_deinitialize(busid);
}
if (g_usbotg_core[busid].usbh_initialize && !g_usbotg_core[busid].usbh_initialized) {
g_usbotg_core[busid].usbh_initialized = true;
g_usbotg_core[busid].usbh_initialize(g_usbotg_core[busid].busid, g_usbotg_core[busid].reg_base);
}
}
static void usbotg_device_initialize(uint8_t busid)
{
if (g_usbotg_core[busid].usbh_initialized) {
g_usbotg_core[busid].usbh_initialized = false;
usbh_deinitialize(busid);
}
if (g_usbotg_core[busid].usbd_initialize && !g_usbotg_core[busid].usbd_initialize) {
g_usbotg_core[busid].usbd_initialized = true;
g_usbotg_core[busid].usbd_initialize(g_usbotg_core[busid].busid, g_usbotg_core[busid].reg_base);
}
}
static void usbotg_rolechange_thread(void *argument)
{
uint8_t busid = (uint8_t)(uintptr_t)argument;
usb_otg_init(busid);
while (1) {
if (usb_osal_sem_take(g_usbotg_core[busid].change_sem, USB_OSAL_WAITING_FOREVER) == 0) {
if (usbotg_get_current_mode(busid) == USBOTG_MODE_HOST) {
usbotg_host_initialize(busid);
} else if (usbotg_get_current_mode(busid) == USBOTG_MODE_DEVICE) {
usbotg_device_initialize(busid);
}
}
}
}
int usbotg_initialize(uint8_t otg_mode, uint8_t busid, uint32_t reg_base,
int (*usbh_initialize)(uint8_t busid, uint32_t reg_base),
int (*usbd_initialize)(uint8_t busid, uint32_t reg_base))
{
char thread_name[32] = { 0 };
if (busid >= CONFIG_USBHOST_MAX_BUS) {
USB_LOG_ERR("bus overflow\r\n");
while (1) {
}
}
g_usbotg_core[busid].busid = busid;
g_usbotg_core[busid].reg_base = reg_base;
g_usbotg_core[busid].usbh_initialize = usbh_initialize;
g_usbotg_core[busid].usbd_initialize = usbd_initialize;
if (otg_mode == USBOTG_MODE_OTG) {
g_usbotg_core[busid].change_sem = usb_osal_sem_create(0);
if (g_usbotg_core[busid].change_sem == NULL) {
USB_LOG_ERR("Failed to create change_sem\r\n");
return -1;
}
snprintf(thread_name, 32, "usbotg%u", busid);
g_usbotg_core[busid].change_thread = usb_osal_thread_create(thread_name, CONFIG_USBHOST_PSC_STACKSIZE, CONFIG_USBHOST_PSC_PRIO, usbotg_rolechange_thread, (void *)(uintptr_t)busid);
if (g_usbotg_core[busid].change_thread == NULL) {
USB_LOG_ERR("Failed to create usbotg thread\r\n");
return -1;
}
} else {
if (otg_mode == USBOTG_MODE_HOST) {
usbotg_host_initialize(busid);
} else if (otg_mode == USBOTG_MODE_DEVICE) {
usbotg_device_initialize(busid);
}
}
return 0;
}
int usbotg_deinitialize(uint8_t busid, uint32_t reg_base)
{
if (g_usbotg_core[busid].usbd_initialized) {
g_usbotg_core[busid].usbd_initialized = false;
usbd_deinitialize(busid);
}
if (g_usbotg_core[busid].usbh_initialized) {
g_usbotg_core[busid].usbh_initialized = false;
usbh_deinitialize(busid);
}
if (g_usbotg_core[busid].change_sem) {
usb_otg_deinit(busid);
usb_osal_sem_delete(g_usbotg_core[busid].change_sem);
}
if (g_usbotg_core[busid].change_thread) {
usb_osal_thread_delete(g_usbotg_core[busid].change_thread);
}
return 0;
}
void usbotg_trigger_role_change(uint8_t busid)
{
usb_osal_sem_give(g_usbotg_core[busid].change_sem);
}
void USBOTG_IRQHandler(uint8_t busid)
{
if (usbotg_get_current_mode(busid) == USBOTG_MODE_HOST) {
USBH_IRQHandler(busid);
} else if (usbotg_get_current_mode(busid) == USBOTG_MODE_DEVICE) {
USBD_IRQHandler(busid);
}
}
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