flipperzero-firmware/firmware/targets/f6/furi-hal/furi-hal-usb.c
Nikolay Minaylov efded63bcb
USB-UART: New GUI (#826)
* USB-UART: new gui
* Furi: use furi_console for logging instead of printf.
* CDC: calling open/close callbacks on interface change
* fix vcp_tx block on disconnect
* USB mode set by struct pointer
* FuriHal: proper event sequence on vcp reconnect
* disable debug prints
* HAL: add context to UART IRQ's
* Context usage in UART IRQ and CDC callbacks
* USB-UART: geting rid of baudrate limitations
* FuriHal: remove struct pollutant in usb api.

Co-authored-by: あく <alleteam@gmail.com>
Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>
2021-11-21 18:17:43 +03:00

164 lines
4.7 KiB
C

#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);
}
}