cc1111_vcomdesc.c

/*
 * CC Bootloader - USB descriptors
 *
 * Adapted from AltOS code by Fergus Noble (c) 2011
 * AltOS code Copyright © 2009 Keith Packard <keithp@keithp.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 */

#include "cc1111.h"
#include "cc1111_vcom.h"

// USB descriptors in one giant block of bytes
__code __at(0x00aa) u8 usb_descriptors [] =
{
  // Device descriptor
  0x12,
  USB_DESC_DEVICE,
  LE_WORD(0x0110),  // bcdUSB
  0x02,             // bDeviceClass
  0x00,             // bDeviceSubClass
  0x00,             // bDeviceProtocol
  USB_CONTROL_SIZE, // bMaxPacketSize
  LE_WORD(USB_VID), // idVendor
  LE_WORD(USB_PID), // idProduct
  LE_WORD(0x010),   // bcdDevice
  0x01,             // iManufacturer
  0x02,             // iProduct
  0x03,             // iSerialNumber
  0x01,             // bNumConfigurations

  // Configuration descriptor
  0x09,
  USB_DESC_CONFIGURATION,
  LE_WORD(67),  // wTotalLength
  0x02,         // bNumInterfaces
  0x01,         // bConfigurationValue
  0x00,         // iConfiguration
  0xC0,         // bmAttributes
  0x32,         // bMaxPower

  // Control class interface
  0x09,
  USB_DESC_INTERFACE,
  0x00,  // bInterfaceNumber
  0x00,  // bAlternateSetting
  0x01,  // bNumEndPoints
  0x02,  // bInterfaceClass
  0x02,  // bInterfaceSubClass
  0x01,  // bInterfaceProtocol, linux requires value of 1 for the cdc_acm module
  0x00,  // iInterface

  // Header functional descriptor
  0x05,
  CS_INTERFACE,
  0x00,             // bDescriptor SubType Header
  LE_WORD(0x0110),  // CDC version 1.1

  // Call management functional descriptor
  0x05,
  CS_INTERFACE,
  0x01,  // bDescriptor SubType Call Management
  0x01,  // bmCapabilities = device handles call management
  0x01,  // bDataInterface call management interface number

  // ACM functional descriptor
  0x04,
  CS_INTERFACE,
  0x02,  // bDescriptor SubType Abstract Control Management
  0x02,  // bmCapabilities = D1 (Set_line_Coding, Set_Control_Line_State, Get_Line_Coding and Serial_State)

  // Union functional descriptor
  0x05,
  CS_INTERFACE,
  0x06,  // bDescriptor SubType Union Functional descriptor
  0x00,  // bMasterInterface
  0x01,  // bSlaveInterface0

  // Notification EP
  0x07,
  USB_DESC_ENDPOINT,
  USB_INT_EP|0x80,  // bEndpointAddress
  0x03,             // bmAttributes = intr
  LE_WORD(8),       // wMaxPacketSize
  0x0A,             // bInterval

  // Data class interface descriptor
  0x09,
  USB_DESC_INTERFACE,
  0x01, // bInterfaceNumber
  0x00, // bAlternateSetting
  0x02, // bNumEndPoints
  0x0A, // bInterfaceClass = data
  0x00, // bInterfaceSubClass
  0x00, // bInterfaceProtocol
  0x00, // iInterface

  // Data EP OUT
  0x07,
  USB_DESC_ENDPOINT,
  USB_OUT_EP,             // bEndpointAddress
  0x02,                   // bmAttributes = bulk
  LE_WORD(USB_OUT_SIZE),  // wMaxPacketSize
  0x00,                   // bInterval

  // Data EP in
  0x07,
  USB_DESC_ENDPOINT,
  USB_IN_EP|0x80,       // bEndpointAddress
  0x02,                 // bmAttributes = bulk
  LE_WORD(USB_IN_SIZE), // wMaxPacketSize
  0x00,                 // bInterval

  // String descriptors
  0x04,
  USB_DESC_STRING,
  LE_WORD(0x0409),

  // iManufacturer
  USB_iManufacturer_LEN,
  USB_DESC_STRING,
  USB_iManufacturer_UCS2,

  // iProduct
  USB_iProduct_LEN,
  USB_DESC_STRING,
  USB_iProduct_UCS2,

  // iSerial
  USB_iSerial_LEN,
  USB_DESC_STRING,
  USB_iSerial_UCS2,

  // Terminating zero
  0
};