diff options
Diffstat (limited to 'firmware/targets/f6/furi_hal/furi_hal_usb.c')
| -rw-r--r-- | firmware/targets/f6/furi_hal/furi_hal_usb.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/firmware/targets/f6/furi_hal/furi_hal_usb.c b/firmware/targets/f6/furi_hal/furi_hal_usb.c new file mode 100644 index 00000000..59b37bbf --- /dev/null +++ b/firmware/targets/f6/furi_hal/furi_hal_usb.c @@ -0,0 +1,159 @@ +#include "furi_hal_version.h" +#include "furi_hal_usb_i.h" +#include "furi_hal_usb.h" +#include <furi.h> + +#include "usb.h" + +#define TAG "FuriHalUsb" + +#define USB_RECONNECT_DELAY 500 + +static UsbInterface* usb_if_cur; +static UsbInterface* usb_if_next; + +static const struct usb_string_descriptor dev_lang_desc = USB_ARRAY_DESC(USB_LANGID_ENG_US); + +static uint32_t ubuf[0x20]; +usbd_device udev; + +static usbd_respond usb_descriptor_get(usbd_ctlreq* req, void** address, uint16_t* length); +static void susp_evt(usbd_device* dev, uint8_t event, uint8_t ep); +static void wkup_evt(usbd_device* dev, uint8_t event, uint8_t ep); + +struct UsbCfg { + osTimerId_t reconnect_tmr; + bool enabled; + bool connected; +} usb_config; + +static void furi_hal_usb_tmr_cb(void* context); + +/* Low-level init */ +void furi_hal_usb_init(void) { + LL_GPIO_InitTypeDef GPIO_InitStruct = {0}; + LL_PWR_EnableVddUSB(); + + GPIO_InitStruct.Pin = LL_GPIO_PIN_11 | LL_GPIO_PIN_12; + GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE; + GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH; + GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL; + GPIO_InitStruct.Pull = LL_GPIO_PULL_NO; + GPIO_InitStruct.Alternate = LL_GPIO_AF_10; + LL_GPIO_Init(GPIOA, &GPIO_InitStruct); + + usbd_init(&udev, &usbd_hw, USB_EP0_SIZE, ubuf, sizeof(ubuf)); + usbd_enable(&udev, true); + + usbd_reg_descr(&udev, usb_descriptor_get); + usbd_reg_event(&udev, usbd_evt_susp, susp_evt); + usbd_reg_event(&udev, usbd_evt_wkup, wkup_evt); + + usb_config.enabled = false; + usb_config.reconnect_tmr = NULL; + HAL_NVIC_SetPriority(USB_LP_IRQn, 5, 0); + NVIC_EnableIRQ(USB_LP_IRQn); + + FURI_LOG_I(TAG, "Init OK"); +} + +void furi_hal_usb_set_config(UsbInterface* new_if) { + if(new_if != usb_if_cur) { + if(usb_config.enabled) { + usb_if_next = new_if; + if(usb_config.reconnect_tmr == NULL) + usb_config.reconnect_tmr = + osTimerNew(furi_hal_usb_tmr_cb, osTimerOnce, NULL, NULL); + furi_hal_usb_disable(); + osTimerStart(usb_config.reconnect_tmr, USB_RECONNECT_DELAY); + } else { + if(usb_if_cur != NULL) usb_if_cur->deinit(&udev); + if(new_if != NULL) { + new_if->init(&udev, new_if); + FURI_LOG_I(TAG, "USB mode change"); + usb_config.enabled = true; + usb_if_cur = new_if; + } + } + } +} + +UsbInterface* furi_hal_usb_get_config() { + return usb_if_cur; +} + +void furi_hal_usb_disable() { + if(usb_config.enabled) { + susp_evt(&udev, 0, 0); + usbd_connect(&udev, false); + usb_config.enabled = false; + FURI_LOG_I(TAG, "USB Disable"); + } +} + +void furi_hal_usb_enable() { + if((!usb_config.enabled) && (usb_if_cur != NULL)) { + usbd_connect(&udev, true); + usb_config.enabled = true; + FURI_LOG_I(TAG, "USB Enable"); + } +} + +static void furi_hal_usb_tmr_cb(void* context) { + furi_hal_usb_set_config(usb_if_next); +} + +/* Get device / configuration descriptors */ +static usbd_respond usb_descriptor_get(usbd_ctlreq* req, void** address, uint16_t* length) { + const uint8_t dtype = req->wValue >> 8; + const uint8_t dnumber = req->wValue & 0xFF; + const void* desc; + uint16_t len = 0; + if(usb_if_cur == NULL) return usbd_fail; + + switch(dtype) { + case USB_DTYPE_DEVICE: + desc = usb_if_cur->dev_descr; + break; + case USB_DTYPE_CONFIGURATION: + desc = usb_if_cur->cfg_descr; + len = ((struct usb_string_descriptor*)(usb_if_cur->cfg_descr))->wString[0]; + break; + case USB_DTYPE_STRING: + if(dnumber == UsbDevLang) { + desc = &dev_lang_desc; + } else if(dnumber == UsbDevManuf) { + desc = usb_if_cur->str_manuf_descr; + } else if(dnumber == UsbDevProduct) { + desc = usb_if_cur->str_prod_descr; + } else if(dnumber == UsbDevSerial) { + desc = usb_if_cur->str_serial_descr; + } else + return usbd_fail; + break; + default: + return usbd_fail; + } + if(desc == NULL) return usbd_fail; + + if(len == 0) { + len = ((struct usb_header_descriptor*)desc)->bLength; + } + *address = (void*)desc; + *length = len; + return usbd_ack; +} + +static void susp_evt(usbd_device* dev, uint8_t event, uint8_t ep) { + if((usb_if_cur != NULL) && (usb_config.connected == true)) { + usb_config.connected = false; + usb_if_cur->suspend(&udev); + } +} + +static void wkup_evt(usbd_device* dev, uint8_t event, uint8_t ep) { + if((usb_if_cur != NULL) && (usb_config.connected == false)) { + usb_config.connected = true; + usb_if_cur->wakeup(&udev); + } +} |