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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <string.h>
#include "usbd_core.h"
#include "usbd_desc.h"
#include "usbd_cdc_msc_hid.h"
#include "usbd_cdc_interface.h"
#include "usbd_msc_storage.h"
#include "misc.h"
#include "mpconfig.h"
#include "qstr.h"
#include "obj.h"
#include "usb.h"
#ifdef USE_DEVICE_MODE
USBD_HandleTypeDef hUSBDDevice;
#endif
static int dev_is_enabled = 0;
mp_obj_t mp_const_vcp_interrupt = MP_OBJ_NULL;
void pyb_usb_dev_init(usb_device_mode_t mode, usb_storage_medium_t medium) {
#ifdef USE_DEVICE_MODE
if (!dev_is_enabled) {
// only init USB once in the device's power-lifetime
if (mode == USB_DEVICE_MODE_CDC_MSC) {
USBD_SelectMode(USBD_MODE_CDC_MSC);
} else {
USBD_SelectMode(USBD_MODE_CDC_HID);
}
USBD_Init(&hUSBDDevice, (USBD_DescriptorsTypeDef*)&VCP_Desc, 0);
USBD_RegisterClass(&hUSBDDevice, &USBD_CDC_MSC_HID);
USBD_CDC_RegisterInterface(&hUSBDDevice, (USBD_CDC_ItfTypeDef*)&USBD_CDC_fops);
#if MICROPY_HW_HAS_SDCARD
if (medium == USB_STORAGE_MEDIUM_FLASH) {
USBD_MSC_RegisterStorage(&hUSBDDevice, (USBD_StorageTypeDef*)&USBD_FLASH_STORAGE_fops);
} else {
USBD_MSC_RegisterStorage(&hUSBDDevice, (USBD_StorageTypeDef*)&USBD_SDCARD_STORAGE_fops);
}
#else
USBD_MSC_RegisterStorage(&hUSBDDevice, (USBD_StorageTypeDef*)&USBD_FLASH_STORAGE_fops);
#endif
USBD_Start(&hUSBDDevice);
}
dev_is_enabled = 1;
// create an exception object for interrupting by VCP
mp_const_vcp_interrupt = mp_obj_new_exception_msg(&mp_type_OSError, "VCPInterrupt");
#endif
}
void pyb_usb_dev_stop(void) {
if (dev_is_enabled) {
USBD_Stop(&hUSBDDevice);
dev_is_enabled = 0;
}
}
bool usb_vcp_is_enabled(void) {
return dev_is_enabled;
}
bool usb_vcp_is_connected(void) {
return USBD_CDC_IsConnected();
}
void usb_vcp_set_interrupt_char(int c) {
if (dev_is_enabled) {
if (c != VCP_CHAR_NONE) {
mp_obj_exception_clear_traceback(mp_const_vcp_interrupt);
}
USBD_CDC_SetInterrupt(c, mp_const_vcp_interrupt);
}
}
int usb_vcp_rx_num(void) {
return USBD_CDC_RxNum();
}
char usb_vcp_rx_get(void) {
return USBD_CDC_RxGet();
}
void usb_vcp_send_str(const char *str) {
usb_vcp_send_strn(str, strlen(str));
}
void usb_vcp_send_strn(const char *str, int len) {
#ifdef USE_DEVICE_MODE
if (dev_is_enabled) {
USBD_CDC_Tx(str, len);
}
#endif
}
void usb_vcp_send_strn_cooked(const char *str, int len) {
#ifdef USE_DEVICE_MODE
if (dev_is_enabled) {
for (const char *top = str + len; str < top; str++) {
if (*str == '\n') {
USBD_CDC_Tx("\r\n", 2);
} else {
USBD_CDC_Tx(str, 1);
}
}
}
#endif
}
void usb_hid_send_report(uint8_t *buf) {
#ifdef USE_DEVICE_MODE
USBD_HID_SendReport(&hUSBDDevice, buf, 4);
#endif
}
/******************************************************************************/
// code for experimental USB OTG support
#ifdef USE_HOST_MODE
#include "led.h"
#include "usbh_core.h"
#include "usbh_usr.h"
#include "usbh_hid_core.h"
#include "usbh_hid_keybd.h"
#include "usbh_hid_mouse.h"
__ALIGN_BEGIN USBH_HOST USB_Host __ALIGN_END ;
static int host_is_enabled = 0;
void pyb_usb_host_init(void) {
if (!host_is_enabled) {
// only init USBH once in the device's power-lifetime
/* Init Host Library */
USBH_Init(&USB_OTG_Core, USB_OTG_FS_CORE_ID, &USB_Host, &HID_cb, &USR_Callbacks);
}
host_is_enabled = 1;
}
void pyb_usb_host_process(void) {
USBH_Process(&USB_OTG_Core, &USB_Host);
}
uint8_t usb_keyboard_key = 0;
// TODO this is an ugly hack to get key presses
uint pyb_usb_host_get_keyboard(void) {
uint key = usb_keyboard_key;
usb_keyboard_key = 0;
return key;
}
void USR_MOUSE_Init(void) {
led_state(4, 1);
USB_OTG_BSP_mDelay(100);
led_state(4, 0);
}
void USR_MOUSE_ProcessData(HID_MOUSE_Data_TypeDef *data) {
led_state(4, 1);
USB_OTG_BSP_mDelay(50);
led_state(4, 0);
}
void USR_KEYBRD_Init(void) {
led_state(4, 1);
USB_OTG_BSP_mDelay(100);
led_state(4, 0);
}
void USR_KEYBRD_ProcessData(uint8_t pbuf) {
led_state(4, 1);
USB_OTG_BSP_mDelay(50);
led_state(4, 0);
usb_keyboard_key = pbuf;
}
#endif // USE_HOST_MODE
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