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unleashed-firmware/firmware/targets/f7/furi-hal/furi-hal-usb-cdc.c
Nikolay Minaylov f8d3cc251c
[FL-1984, FL-2004, FL-2010] USB CDC Fixes (#801) 
* [FL-1984, FL-2004] USB-UART Fixes, test with high timer task priority
* added forgotten file
* switch from EventFlags to ThreadFlags
* [FL-1984, FL-2010] USB-UART and furi-hal-vcp rework
* Scripts: modernize string formatting.

Co-authored-by: あく <alleteam@gmail.com>
2021-11-04 22:33:28 +03:00

603 lines
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#include "furi-hal-version.h"
#include "furi-hal-usb_i.h"
#include "furi-hal-usb-cdc_i.h"
#include <furi.h>
#include "usb.h"
#include "usb_cdc.h"
#define CDC0_RXD_EP 0x01
#define CDC0_TXD_EP 0x82
#define CDC0_NTF_EP 0x83
#define CDC1_RXD_EP 0x04
#define CDC1_TXD_EP 0x85
#define CDC1_NTF_EP 0x86
#define CDC_NTF_SZ 0x08
#define IF_NUM_MAX 2
struct CdcIadDescriptor {
struct usb_iad_descriptor comm_iad;
struct usb_interface_descriptor comm;
struct usb_cdc_header_desc cdc_hdr;
struct usb_cdc_call_mgmt_desc cdc_mgmt;
struct usb_cdc_acm_desc cdc_acm;
struct usb_cdc_union_desc cdc_union;
struct usb_endpoint_descriptor comm_ep;
struct usb_interface_descriptor data;
struct usb_endpoint_descriptor data_eprx;
struct usb_endpoint_descriptor data_eptx;
};
struct CdcConfigDescriptorSingle {
struct usb_config_descriptor config;
struct CdcIadDescriptor iad_0;
} __attribute__((packed));
struct CdcConfigDescriptorDual {
struct usb_config_descriptor config;
struct CdcIadDescriptor iad_0;
struct CdcIadDescriptor iad_1;
} __attribute__((packed));
static const struct usb_string_descriptor dev_manuf_desc = USB_STRING_DESC("Flipper Devices Inc.");
/* Device descriptor */
static const struct usb_device_descriptor cdc_device_desc = {
.bLength = sizeof(struct usb_device_descriptor),
.bDescriptorType = USB_DTYPE_DEVICE,
.bcdUSB = VERSION_BCD(2,0,0),
.bDeviceClass = USB_CLASS_IAD,
.bDeviceSubClass = USB_SUBCLASS_IAD,
.bDeviceProtocol = USB_PROTO_IAD,
.bMaxPacketSize0 = USB_EP0_SIZE,
.idVendor = 0x0483,
.idProduct = 0x5740,
.bcdDevice = VERSION_BCD(1,0,0),
.iManufacturer = UsbDevManuf,
.iProduct = UsbDevProduct,
.iSerialNumber = UsbDevSerial,
.bNumConfigurations = 1,
};
/* Device configuration descriptor - single mode*/
static const struct CdcConfigDescriptorSingle cdc_cfg_desc_single = {
.config = {
.bLength = sizeof(struct usb_config_descriptor),
.bDescriptorType = USB_DTYPE_CONFIGURATION,
.wTotalLength = sizeof(struct CdcConfigDescriptorSingle),
.bNumInterfaces = 2,
.bConfigurationValue = 1,
.iConfiguration = NO_DESCRIPTOR,
.bmAttributes = USB_CFG_ATTR_RESERVED | USB_CFG_ATTR_SELFPOWERED,
.bMaxPower = USB_CFG_POWER_MA(100),
},
.iad_0 = {
.comm_iad = {
.bLength = sizeof(struct usb_iad_descriptor),
.bDescriptorType = USB_DTYPE_INTERFASEASSOC,
.bFirstInterface = 0,
.bInterfaceCount = 2,
.bFunctionClass = USB_CLASS_CDC,
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
.bFunctionProtocol = USB_PROTO_NONE,
.iFunction = NO_DESCRIPTOR,
},
.comm = {
.bLength = sizeof(struct usb_interface_descriptor),
.bDescriptorType = USB_DTYPE_INTERFACE,
.bInterfaceNumber = 0,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_CDC,
.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
.bInterfaceProtocol = USB_PROTO_NONE,
.iInterface = NO_DESCRIPTOR,
},
.cdc_hdr = {
.bFunctionLength = sizeof(struct usb_cdc_header_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_HEADER,
.bcdCDC = VERSION_BCD(1,1,0),
},
.cdc_mgmt = {
.bFunctionLength = sizeof(struct usb_cdc_call_mgmt_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_CALL_MANAGEMENT,
.bmCapabilities = 0,
.bDataInterface = 1,
},
.cdc_acm = {
.bFunctionLength = sizeof(struct usb_cdc_acm_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_ACM,
.bmCapabilities = 0,
},
.cdc_union = {
.bFunctionLength = sizeof(struct usb_cdc_union_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_UNION,
.bMasterInterface0 = 0,
.bSlaveInterface0 = 1,
},
.comm_ep = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = USB_DTYPE_ENDPOINT,
.bEndpointAddress = CDC0_NTF_EP,
.bmAttributes = USB_EPTYPE_INTERRUPT,
.wMaxPacketSize = CDC_NTF_SZ,
.bInterval = 0xFF,
},
.data = {
.bLength = sizeof(struct usb_interface_descriptor),
.bDescriptorType = USB_DTYPE_INTERFACE,
.bInterfaceNumber = 1,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_CDC_DATA,
.bInterfaceSubClass = USB_SUBCLASS_NONE,
.bInterfaceProtocol = USB_PROTO_NONE,
.iInterface = NO_DESCRIPTOR,
},
.data_eprx = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = USB_DTYPE_ENDPOINT,
.bEndpointAddress = CDC0_RXD_EP,
.bmAttributes = USB_EPTYPE_BULK,
.wMaxPacketSize = CDC_DATA_SZ,
.bInterval = 0x01,
},
.data_eptx = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = USB_DTYPE_ENDPOINT,
.bEndpointAddress = CDC0_TXD_EP,
.bmAttributes = USB_EPTYPE_BULK,
.wMaxPacketSize = CDC_DATA_SZ,
.bInterval = 0x01,
},
},
};
/* Device configuration descriptor - dual mode*/
static const struct CdcConfigDescriptorDual cdc_cfg_desc_dual = {
.config = {
.bLength = sizeof(struct usb_config_descriptor),
.bDescriptorType = USB_DTYPE_CONFIGURATION,
.wTotalLength = sizeof(struct CdcConfigDescriptorDual),
.bNumInterfaces = 4,
.bConfigurationValue = 1,
.iConfiguration = NO_DESCRIPTOR,
.bmAttributes = USB_CFG_ATTR_RESERVED | USB_CFG_ATTR_SELFPOWERED,
.bMaxPower = USB_CFG_POWER_MA(100),
},
.iad_0 = {
.comm_iad = {
.bLength = sizeof(struct usb_iad_descriptor),
.bDescriptorType = USB_DTYPE_INTERFASEASSOC,
.bFirstInterface = 0,
.bInterfaceCount = 2,
.bFunctionClass = USB_CLASS_CDC,
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
.bFunctionProtocol = USB_PROTO_NONE,
.iFunction = NO_DESCRIPTOR,
},
.comm = {
.bLength = sizeof(struct usb_interface_descriptor),
.bDescriptorType = USB_DTYPE_INTERFACE,
.bInterfaceNumber = 0,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_CDC,
.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
.bInterfaceProtocol = USB_PROTO_NONE,
.iInterface = NO_DESCRIPTOR,
},
.cdc_hdr = {
.bFunctionLength = sizeof(struct usb_cdc_header_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_HEADER,
.bcdCDC = VERSION_BCD(1,1,0),
},
.cdc_mgmt = {
.bFunctionLength = sizeof(struct usb_cdc_call_mgmt_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_CALL_MANAGEMENT,
.bmCapabilities = 0,
.bDataInterface = 1,
},
.cdc_acm = {
.bFunctionLength = sizeof(struct usb_cdc_acm_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_ACM,
.bmCapabilities = 0,
},
.cdc_union = {
.bFunctionLength = sizeof(struct usb_cdc_union_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_UNION,
.bMasterInterface0 = 0,
.bSlaveInterface0 = 1,
},
.comm_ep = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = USB_DTYPE_ENDPOINT,
.bEndpointAddress = CDC0_NTF_EP,
.bmAttributes = USB_EPTYPE_INTERRUPT,
.wMaxPacketSize = CDC_NTF_SZ,
.bInterval = 0xFF,
},
.data = {
.bLength = sizeof(struct usb_interface_descriptor),
.bDescriptorType = USB_DTYPE_INTERFACE,
.bInterfaceNumber = 1,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_CDC_DATA,
.bInterfaceSubClass = USB_SUBCLASS_NONE,
.bInterfaceProtocol = USB_PROTO_NONE,
.iInterface = NO_DESCRIPTOR,
},
.data_eprx = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = USB_DTYPE_ENDPOINT,
.bEndpointAddress = CDC0_RXD_EP,
.bmAttributes = USB_EPTYPE_BULK,
.wMaxPacketSize = CDC_DATA_SZ,
.bInterval = 0x01,
},
.data_eptx = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = USB_DTYPE_ENDPOINT,
.bEndpointAddress = CDC0_TXD_EP,
.bmAttributes = USB_EPTYPE_BULK,
.wMaxPacketSize = CDC_DATA_SZ,
.bInterval = 0x01,
},
},
.iad_1 = {
.comm_iad = {
.bLength = sizeof(struct usb_iad_descriptor),
.bDescriptorType = USB_DTYPE_INTERFASEASSOC,
.bFirstInterface = 2,
.bInterfaceCount = 2,
.bFunctionClass = USB_CLASS_CDC,
.bFunctionSubClass = USB_CDC_SUBCLASS_ACM,
.bFunctionProtocol = USB_PROTO_NONE,
.iFunction = NO_DESCRIPTOR,
},
.comm = {
.bLength = sizeof(struct usb_interface_descriptor),
.bDescriptorType = USB_DTYPE_INTERFACE,
.bInterfaceNumber = 2+0,
.bAlternateSetting = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_CDC,
.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
.bInterfaceProtocol = USB_PROTO_NONE,
.iInterface = NO_DESCRIPTOR,
},
.cdc_hdr = {
.bFunctionLength = sizeof(struct usb_cdc_header_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_HEADER,
.bcdCDC = VERSION_BCD(1,1,0),
},
.cdc_mgmt = {
.bFunctionLength = sizeof(struct usb_cdc_call_mgmt_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_CALL_MANAGEMENT,
.bmCapabilities = 0,
.bDataInterface = 2+1,
},
.cdc_acm = {
.bFunctionLength = sizeof(struct usb_cdc_acm_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_ACM,
.bmCapabilities = 0,
},
.cdc_union = {
.bFunctionLength = sizeof(struct usb_cdc_union_desc),
.bDescriptorType = USB_DTYPE_CS_INTERFACE,
.bDescriptorSubType = USB_DTYPE_CDC_UNION,
.bMasterInterface0 = 2+0,
.bSlaveInterface0 = 2+1,
},
.comm_ep = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = USB_DTYPE_ENDPOINT,
.bEndpointAddress = CDC1_NTF_EP,
.bmAttributes = USB_EPTYPE_INTERRUPT,
.wMaxPacketSize = CDC_NTF_SZ,
.bInterval = 0xFF,
},
.data = {
.bLength = sizeof(struct usb_interface_descriptor),
.bDescriptorType = USB_DTYPE_INTERFACE,
.bInterfaceNumber = 2+1,
.bAlternateSetting = 0,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_CDC_DATA,
.bInterfaceSubClass = USB_SUBCLASS_NONE,
.bInterfaceProtocol = USB_PROTO_NONE,
.iInterface = NO_DESCRIPTOR,
},
.data_eprx = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = USB_DTYPE_ENDPOINT,
.bEndpointAddress = CDC1_RXD_EP,
.bmAttributes = USB_EPTYPE_BULK,
.wMaxPacketSize = CDC_DATA_SZ,
.bInterval = 0x01,
},
.data_eptx = {
.bLength = sizeof(struct usb_endpoint_descriptor),
.bDescriptorType = USB_DTYPE_ENDPOINT,
.bEndpointAddress = CDC1_TXD_EP,
.bmAttributes = USB_EPTYPE_BULK,
.wMaxPacketSize = CDC_DATA_SZ,
.bInterval = 0x01,
},
},
};
static struct usb_cdc_line_coding cdc_config[IF_NUM_MAX] = {};
static void cdc_init(usbd_device* dev, struct UsbInterface* intf);
static void cdc_deinit(usbd_device *dev);
static void cdc_on_wakeup(usbd_device *dev);
static void cdc_on_suspend(usbd_device *dev);
static usbd_respond cdc_ep_config (usbd_device *dev, uint8_t cfg);
static usbd_respond cdc_control (usbd_device *dev, usbd_ctlreq *req, usbd_rqc_callback *callback);
static usbd_device* usb_dev;
static struct UsbInterface* cdc_if_cur = NULL;
static CdcCallbacks* callbacks[IF_NUM_MAX] = {NULL};
struct UsbInterface usb_cdc_single = {
.init = cdc_init,
.deinit = cdc_deinit,
.wakeup = cdc_on_wakeup,
.suspend = cdc_on_suspend,
.dev_descr = (struct usb_device_descriptor*)&cdc_device_desc,
.str_manuf_descr = (void*)&dev_manuf_desc,
.str_prod_descr = NULL,
.str_serial_descr = NULL,
.cfg_descr = (void*)&cdc_cfg_desc_single,
};
struct UsbInterface usb_cdc_dual = {
.init = cdc_init,
.deinit = cdc_deinit,
.wakeup = cdc_on_wakeup,
.suspend = cdc_on_suspend,
.dev_descr = (struct usb_device_descriptor*)&cdc_device_desc,
.str_manuf_descr = (void*)&dev_manuf_desc,
.str_prod_descr = NULL,
.str_serial_descr = NULL,
.cfg_descr = (void*)&cdc_cfg_desc_dual,
};
static void cdc_init(usbd_device* dev, struct UsbInterface* intf) {
usb_dev = dev;
cdc_if_cur = intf;
char* name = (char*)furi_hal_version_get_device_name_ptr();
uint8_t len = (name == NULL) ? (0) : (strlen(name));
struct usb_string_descriptor* dev_prod_desc = furi_alloc(len * 2 + 2);
dev_prod_desc->bLength = len * 2 + 2;
dev_prod_desc->bDescriptorType = USB_DTYPE_STRING;
for (uint8_t i = 0; i < len; i++)
dev_prod_desc->wString[i] = name[i];
name = (char*)furi_hal_version_get_name_ptr();
len = (name == NULL) ? (0) : (strlen(name));
struct usb_string_descriptor* dev_serial_desc = furi_alloc((len + 5) * 2 + 2);
dev_serial_desc->bLength = (len + 5) * 2 + 2;
dev_serial_desc->bDescriptorType = USB_DTYPE_STRING;
memcpy(dev_serial_desc->wString, "f\0l\0i\0p\0_\0", 5*2);
for (uint8_t i = 0; i < len; i++)
dev_serial_desc->wString[i+5] = name[i];
cdc_if_cur->str_prod_descr = dev_prod_desc;
cdc_if_cur->str_serial_descr = dev_serial_desc;
usbd_reg_config(dev, cdc_ep_config);
usbd_reg_control(dev, cdc_control);
usbd_connect(dev, true);
}
static void cdc_deinit(usbd_device *dev) {
usbd_reg_config(dev, NULL);
usbd_reg_control(dev, NULL);
free(cdc_if_cur->str_prod_descr);
free(cdc_if_cur->str_serial_descr);
cdc_if_cur = NULL;
}
void furi_hal_cdc_set_callbacks(uint8_t if_num, CdcCallbacks* cb) {
if (if_num < 2)
callbacks[if_num] = cb;
}
struct usb_cdc_line_coding* furi_hal_cdc_get_port_settings(uint8_t if_num) {
if (if_num < 2)
return &cdc_config[if_num];
return NULL;
}
void furi_hal_cdc_send(uint8_t if_num, uint8_t* buf, uint16_t len) {
if (if_num == 0)
usbd_ep_write(usb_dev, CDC0_TXD_EP, buf, len);
else
usbd_ep_write(usb_dev, CDC1_TXD_EP, buf, len);
}
int32_t furi_hal_cdc_receive(uint8_t if_num, uint8_t* buf, uint16_t max_len) {
int32_t len = 0;
if (if_num == 0)
len = usbd_ep_read(usb_dev, CDC0_RXD_EP, buf, max_len);
else
len = usbd_ep_read(usb_dev, CDC1_RXD_EP, buf, max_len);
return ((len < 0) ? 0 : len);
}
static void cdc_on_wakeup(usbd_device *dev) {
for (uint8_t i = 0; i < IF_NUM_MAX; i++) {
if (callbacks[i] != NULL) {
if (callbacks[i]->state_callback != NULL)
callbacks[i]->state_callback(1);
}
}
}
static void cdc_on_suspend(usbd_device *dev) {
for (uint8_t i = 0; i < IF_NUM_MAX; i++) {
if (callbacks[i] != NULL) {
if (callbacks[i]->state_callback != NULL)
callbacks[i]->state_callback(0);
}
}
}
static void cdc_rx_ep_callback (usbd_device *dev, uint8_t event, uint8_t ep) {
uint8_t if_num = 0;
if (ep == CDC0_RXD_EP)
if_num = 0;
else
if_num = 1;
if (callbacks[if_num] != NULL) {
if (callbacks[if_num]->rx_ep_callback != NULL)
callbacks[if_num]->rx_ep_callback();
}
}
static void cdc_tx_ep_callback (usbd_device *dev, uint8_t event, uint8_t ep) {
uint8_t if_num = 0;
if (ep == CDC0_TXD_EP)
if_num = 0;
else
if_num = 1;
if (callbacks[if_num] != NULL) {
if (callbacks[if_num]->tx_ep_callback != NULL)
callbacks[if_num]->tx_ep_callback();
}
}
static void cdc_txrx_ep_callback (usbd_device *dev, uint8_t event, uint8_t ep) {
if (event == usbd_evt_eptx) {
cdc_tx_ep_callback(dev, event, ep);
} else {
cdc_rx_ep_callback(dev, event, ep);
}
}
/* Configure endpoints */
static usbd_respond cdc_ep_config (usbd_device *dev, uint8_t cfg) {
uint8_t if_cnt = ((struct usb_config_descriptor*)(cdc_if_cur->cfg_descr))->bNumInterfaces;
switch (cfg) {
case 0:
/* deconfiguring device */
usbd_ep_deconfig(dev, CDC0_NTF_EP);
usbd_ep_deconfig(dev, CDC0_TXD_EP);
usbd_ep_deconfig(dev, CDC0_RXD_EP);
usbd_reg_endpoint(dev, CDC0_RXD_EP, 0);
usbd_reg_endpoint(dev, CDC0_TXD_EP, 0);
if (if_cnt == 4) {
usbd_ep_deconfig(dev, CDC1_NTF_EP);
usbd_ep_deconfig(dev, CDC1_TXD_EP);
usbd_ep_deconfig(dev, CDC1_RXD_EP);
usbd_reg_endpoint(dev, CDC1_RXD_EP, 0);
usbd_reg_endpoint(dev, CDC1_TXD_EP, 0);
}
return usbd_ack;
case 1:
/* configuring device */
if ((CDC0_TXD_EP & 0x7F) != (CDC0_RXD_EP & 0x7F)) {
// 2x unidirectional endpoint mode with dualbuf
usbd_ep_config(dev, CDC0_RXD_EP, USB_EPTYPE_BULK | USB_EPTYPE_DBLBUF, CDC_DATA_SZ);
usbd_ep_config(dev, CDC0_TXD_EP, USB_EPTYPE_BULK | USB_EPTYPE_DBLBUF, CDC_DATA_SZ);
usbd_ep_config(dev, CDC0_NTF_EP, USB_EPTYPE_INTERRUPT, CDC_NTF_SZ);
usbd_reg_endpoint(dev, CDC0_RXD_EP, cdc_rx_ep_callback);
usbd_reg_endpoint(dev, CDC0_TXD_EP, cdc_tx_ep_callback);
} else {
// 1x bidirectional endpoint mode
usbd_ep_config(dev, CDC0_RXD_EP, USB_EPTYPE_BULK, CDC_DATA_SZ);
usbd_ep_config(dev, CDC0_TXD_EP, USB_EPTYPE_BULK, CDC_DATA_SZ);
usbd_ep_config(dev, CDC0_NTF_EP, USB_EPTYPE_INTERRUPT, CDC_NTF_SZ);
usbd_reg_endpoint(dev, CDC0_RXD_EP, cdc_txrx_ep_callback);
usbd_reg_endpoint(dev, CDC0_TXD_EP, cdc_txrx_ep_callback);
}
usbd_ep_write(dev, CDC0_TXD_EP, 0, 0);
if (if_cnt == 4) {
if ((CDC1_TXD_EP & 0x7F) != (CDC1_RXD_EP & 0x7F)) {
usbd_ep_config(dev, CDC1_RXD_EP, USB_EPTYPE_BULK | USB_EPTYPE_DBLBUF, CDC_DATA_SZ);
usbd_ep_config(dev, CDC1_TXD_EP, USB_EPTYPE_BULK | USB_EPTYPE_DBLBUF, CDC_DATA_SZ);
usbd_ep_config(dev, CDC1_NTF_EP, USB_EPTYPE_INTERRUPT, CDC_NTF_SZ);
usbd_reg_endpoint(dev, CDC1_RXD_EP, cdc_rx_ep_callback);
usbd_reg_endpoint(dev, CDC1_TXD_EP, cdc_tx_ep_callback);
} else {
usbd_ep_config(dev, CDC1_RXD_EP, USB_EPTYPE_BULK, CDC_DATA_SZ);
usbd_ep_config(dev, CDC1_TXD_EP, USB_EPTYPE_BULK, CDC_DATA_SZ);
usbd_ep_config(dev, CDC1_NTF_EP, USB_EPTYPE_INTERRUPT, CDC_NTF_SZ);
usbd_reg_endpoint(dev, CDC1_RXD_EP, cdc_txrx_ep_callback);
usbd_reg_endpoint(dev, CDC1_TXD_EP, cdc_txrx_ep_callback);
}
usbd_ep_write(dev, CDC1_TXD_EP, 0, 0);
}
return usbd_ack;
default:
return usbd_fail;
}
}
/* Control requests handler */
static usbd_respond cdc_control(usbd_device* dev, usbd_ctlreq* req, usbd_rqc_callback* callback) {
/* CDC control requests */
uint8_t if_num = 0;
if(((USB_REQ_RECIPIENT | USB_REQ_TYPE) & req->bmRequestType) == (USB_REQ_INTERFACE | USB_REQ_CLASS)
&& (req->wIndex == 0 || req->wIndex == 2)) {
if (req->wIndex == 0)
if_num = 0;
else
if_num = 1;
switch(req->bRequest) {
case USB_CDC_SET_CONTROL_LINE_STATE:
if (callbacks[if_num] != NULL) {
if (callbacks[if_num]->ctrl_line_callback != NULL)
callbacks[if_num]->ctrl_line_callback(req->wValue);
}
return usbd_ack;
case USB_CDC_SET_LINE_CODING:
memcpy(&cdc_config[if_num], req->data, sizeof(cdc_config[0]));
if (callbacks[if_num] != NULL) {
if (callbacks[if_num]->config_callback != NULL)
callbacks[if_num]->config_callback(&cdc_config[if_num]);
}
return usbd_ack;
case USB_CDC_GET_LINE_CODING:
dev->status.data_ptr = &cdc_config[if_num];
dev->status.data_count = sizeof(cdc_config[0]);
return usbd_ack;
default:
return usbd_fail;
}
}
return usbd_fail;
}
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