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drivers: usb: device: Add support for USB on STM32G0X

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Patches to support USB_DRD_FS on STM32G0 series.

Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
This commit is contained in:
Yong Cong Sin 2021-07-02 10:05:43 +08:00 • committed by Christopher Friedt
commit cf3b18bec0
1 changed files with 14 additions and 9 deletions
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23
drivers/usb/device/usb_dc_stm32.c
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@ -67,15 +67,16 @@ static const struct soc_gpio_pinctrl usb_pinctrl[] =
DT_HAS_COMPAT_STATUS_OKAY(st_stm32_otghs))
/*
* USB and USB_OTG_FS are defined in STM32Cube HAL and allows to distinguish
* between two kind of USB DC. STM32 F0, F3, L0 and G4 series support USB device
* controller. STM32 F4 and F7 series support USB_OTG_FS device controller.
* STM32 F1 and L4 series support either USB or USB_OTG_FS device controller.
* USB, USB_OTG_FS and USB_DRD_FS are defined in STM32Cube HAL and allows to
* distinguish between two kind of USB DC. STM32 F0, F3, L0 and G4 series
* support USB device controller. STM32 F4 and F7 series support USB_OTG_FS
* device controller. STM32 F1 and L4 series support either USB or USB_OTG_FS
* device controller.STM32 G0 series supports USB_DRD_FS device controller.
*
* WARNING: Don't mix USB defined in STM32Cube HAL and CONFIG_USB_* from Zephyr
* Kconfig system.
*/
#ifdef USB
#if defined(USB) || defined(USB_DRD_FS)
#define EP0_MPS 64U
#define EP_MPS 64U
@ -145,7 +146,7 @@ struct usb_dc_stm32_state {
struct usb_dc_stm32_ep_state in_ep_state[USB_NUM_BIDIR_ENDPOINTS];
uint8_t ep_buf[USB_NUM_BIDIR_ENDPOINTS][EP_MPS];
#ifdef USB
#if defined(USB) || defined(USB_DRD_FS)
uint32_t pma_offset;
#endif /* USB */
};
@ -344,8 +345,12 @@ static int usb_dc_stm32_init(void)
HAL_StatusTypeDef status;
unsigned int i;
#if defined(USB) || defined(USB_DRD_FS)
#ifdef USB
usb_dc_stm32_state.pcd.Instance = USB;
#else
usb_dc_stm32_state.pcd.Instance = USB_DRD_FS;
#endif
usb_dc_stm32_state.pcd.Init.speed = PCD_SPEED_FULL;
usb_dc_stm32_state.pcd.Init.dev_endpoints = USB_NUM_BIDIR_ENDPOINTS;
usb_dc_stm32_state.pcd.Init.phy_itface = PCD_PHY_EMBEDDED;
@ -426,7 +431,7 @@ static int usb_dc_stm32_init(void)
usb_dc_stm32_state.in_ep_state[EP0_IDX].ep_mps = EP0_MPS;
usb_dc_stm32_state.in_ep_state[EP0_IDX].ep_type = EP_TYPE_CTRL;
#ifdef USB
#if defined(USB) || defined(USB_DRD_FS)
/* Start PMA configuration for the endpoints after the BTABLE. */
usb_dc_stm32_state.pma_offset = USB_BTABLE_SIZE;
@ -628,7 +633,7 @@ int usb_dc_ep_configure(const struct usb_dc_ep_cfg_data * const ep_cfg)
ep_cfg->ep_addr, ep_state->ep_mps, ep_cfg->ep_mps,
ep_cfg->ep_type);
#ifdef USB
#if defined(USB) || defined(USB_DRD_FS)
if (ep_cfg->ep_mps > ep_state->ep_pma_buf_len) {
if (USB_RAM_SIZE <=
(usb_dc_stm32_state.pma_offset + ep_cfg->ep_mps)) {
@ -1087,7 +1092,7 @@ void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
}
}
#if defined(USB) && defined(CONFIG_USB_DC_STM32_DISCONN_ENABLE)
#if (defined(USB) || defined(USB_DRD_FS)) && defined(CONFIG_USB_DC_STM32_DISCONN_ENABLE)
void HAL_PCDEx_SetConnectionState(PCD_HandleTypeDef *hpcd, uint8_t state)
{
const struct device *usb_disconnect;