michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers: udc_dwc2: add vendor quirks to support Nordic USBHS controller

Browse source 
Add vendor quirks to support Nordic USBHS controller.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
This commit is contained in:
Johann Fischer 2024-05-14 13:21:19 +02:00 • committed by Fabio Baltieri
commit b117155320
2 changed files with 139 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/usb/udc/Kconfig.dwc2
View file

@ -5,6 +5,8 @@ config UDC_DWC2
bool "DWC2 USB device controller driver"
default y
depends on DT_HAS_SNPS_DWC2_ENABLED
select NRFS if NRFS_HAS_VBUS_DETECTOR_SERVICE
select NRFS_VBUS_DETECTOR_SERVICE_ENABLED if NRFS_HAS_VBUS_DETECTOR_SERVICE
help
DWC2 USB device controller driver.

137
drivers/usb/udc/udc_dwc2_vendor_quirks.h
View file

@ -11,6 +11,7 @@
#include <stdint.h>
#include <zephyr/device.h>
#include <zephyr/drivers/usb/udc.h>
#if DT_HAS_COMPAT_STATUS_OKAY(st_stm32f4_fsotg)
@ -107,6 +108,142 @@ DT_INST_FOREACH_STATUS_OKAY(QUIRK_STM32F4_FSOTG_DEFINE)
#endif /*DT_HAS_COMPAT_STATUS_OKAY(st_stm32f4_fsotg) */
#if DT_HAS_COMPAT_STATUS_OKAY(nordic_nrf_usbhs)
#define DT_DRV_COMPAT snps_dwc2
#include <nrfs_backend_ipc_service.h>
#include <nrfs_usb.h>
#define USBHS_DT_WRAPPER_REG_ADDR(n) UINT_TO_POINTER(DT_INST_REG_ADDR_BY_NAME(n, wrapper))
static void usbhs_vbus_handler(nrfs_usb_evt_t const *p_evt, void *const context)
{
const struct device *dev = context;
switch (p_evt->type) {
case NRFS_USB_EVT_VBUS_STATUS_CHANGE:
LOG_DBG("USBHS new status, pll_ok = %d vreg_ok = %d vbus_detected = %d",
p_evt->usbhspll_ok, p_evt->vregusb_ok, p_evt->vbus_detected);
if (p_evt->usbhspll_ok && p_evt->vregusb_ok && p_evt->vbus_detected) {
udc_submit_event(dev, UDC_EVT_VBUS_READY, 0);
} else {
udc_submit_event(dev, UDC_EVT_VBUS_REMOVED, 0);
}
break;
case NRFS_USB_EVT_REJECT:
LOG_ERR("Request rejected");
break;
default:
LOG_ERR("Unknown event type 0x%x", p_evt->type);
break;
}
}
static inline int usbhs_enable_nrfs_service(const struct device *dev)
{
nrfs_err_t nrfs_err;
int err;
err = nrfs_backend_wait_for_connection(K_MSEC(1000));
if (err) {
LOG_INF("NRFS backend connection timeout");
return err;
}
nrfs_err = nrfs_usb_init(usbhs_vbus_handler);
if (nrfs_err != NRFS_SUCCESS) {
LOG_ERR("Failed to init NRFS VBUS handler: %d", nrfs_err);
return -EIO;
}
nrfs_err = nrfs_usb_enable_request((void *)dev);
if (nrfs_err != NRFS_SUCCESS) {
LOG_ERR("Failed to enable NRFS VBUS service: %d", nrfs_err);
return -EIO;
}
return 0;
}
static inline int usbhs_enable_core(const struct device *dev)
{
NRF_USBHS_Type *wrapper = USBHS_DT_WRAPPER_REG_ADDR(0);
wrapper->ENABLE = USBHS_ENABLE_PHY_Msk | USBHS_ENABLE_CORE_Msk;
wrapper->TASKS_START = 1UL;
/* Enable interrupts */
wrapper->INTENSET = 1UL;
return 0;
}
static inline int usbhs_disable_core(const struct device *dev)
{
NRF_USBHS_Type *wrapper = USBHS_DT_WRAPPER_REG_ADDR(0);
/* Disable interrupts */
wrapper->INTENCLR = 1UL;
wrapper->ENABLE = 0UL;
wrapper->TASKS_START = 1UL;
return 0;
}
static inline int usbhs_disable_nrfs_service(const struct device *dev)
{
nrfs_err_t nrfs_err;
nrfs_err = nrfs_usb_disable_request((void *)dev);
if (nrfs_err != NRFS_SUCCESS) {
LOG_ERR("Failed to disable NRFS VBUS service: %d", nrfs_err);
return -EIO;
}
nrfs_usb_uninit();
return 0;
}
static inline int usbhs_irq_clear(const struct device *dev)
{
NRF_USBHS_Type *wrapper = USBHS_DT_WRAPPER_REG_ADDR(0);
wrapper->EVENTS_CORE = 0UL;
return 0;
}
static inline int usbhs_init_caps(const struct device *dev)
{
struct udc_data *data = dev->data;
data->caps.can_detect_vbus = true;
data->caps.hs = true;
return 0;
}
#define QUIRK_NRF_USBHS_DEFINE(n) \
struct dwc2_vendor_quirks dwc2_vendor_quirks_##n = { \
.init = usbhs_enable_nrfs_service, \
.pre_enable = usbhs_enable_core, \
.disable = usbhs_disable_core, \
.shutdown = usbhs_disable_nrfs_service, \
.irq_clear = usbhs_irq_clear, \
.caps = usbhs_init_caps, \
};
DT_INST_FOREACH_STATUS_OKAY(QUIRK_NRF_USBHS_DEFINE)
#undef DT_DRV_COMPAT
#endif /*DT_HAS_COMPAT_STATUS_OKAY(nordic_nrf_usbhs) */
/* Add next vendor quirks definition above this line */
#endif /* ZEPHYR_DRIVERS_USB_UDC_DWC2_VENDOR_QUIRKS_H */