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controller/USB/pjrc/arm/usb_desc.c

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#include "usb_desc.h"
// USB Descriptors are binary data which the USB host reads to
// automatically detect a USB device's capabilities. The format
// and meaning of every field is documented in numerous USB
// standards. When working with USB descriptors, despite the
// complexity of the standards and poor writing quality in many
// of those documents, remember descriptors are nothing more
// than constant binary data that tells the USB host what the
// device can do. Computers will load drivers based on this data.
// Those drivers then communicate on the endpoints specified by
// the descriptors.
// To configure a new combination of interfaces or make minor
// changes to existing configuration (eg, change the name or ID
// numbers), usually you would edit "usb_desc.h". This file
// is meant to be configured by the header, so generally it is
// only edited to add completely new USB interfaces or features.
// **************************************************************
// USB Device
// **************************************************************
#define LSB(n) ((n) & 255)
#define MSB(n) (((n) >> 8) & 255)
// USB Device Descriptor. The USB host reads this first, to learn
// what type of device is connected.
static uint8_t device_descriptor[] = {
18, // bLength
1, // bDescriptorType
0x00, 0x02, // bcdUSB
#ifdef DEVICE_CLASS
DEVICE_CLASS, // bDeviceClass
#else
0,
#endif
#ifdef DEVICE_SUBCLASS
DEVICE_SUBCLASS, // bDeviceSubClass
#else
0,
#endif
#ifdef DEVICE_PROTOCOL
DEVICE_PROTOCOL, // bDeviceProtocol
#else
0,
#endif
EP0_SIZE, // bMaxPacketSize0
LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor
LSB(PRODUCT_ID), MSB(PRODUCT_ID), // idProduct
0x00, 0x01, // bcdDevice
1, // iManufacturer
2, // iProduct
3, // iSerialNumber
1 // bNumConfigurations
};
// These descriptors must NOT be "const", because the USB DMA
// has trouble accessing flash memory with enough bandwidth
// while the processor is executing from flash.
// **************************************************************
// HID Report Descriptors
// **************************************************************
// Each HID interface needs a special report descriptor that tells
// the meaning and format of the data.
#ifdef KEYBOARD_INTERFACE
// Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60
static uint8_t keyboard_report_desc[] = {
0x05, 0x01, // Usage Page (Generic Desktop),
0x09, 0x06, // Usage (Keyboard),
0xA1, 0x01, // Collection (Application),
0x75, 0x01, // Report Size (1),
0x95, 0x08, // Report Count (8),
0x05, 0x07, // Usage Page (Key Codes),
0x19, 0xE0, // Usage Minimum (224),
0x29, 0xE7, // Usage Maximum (231),
0x15, 0x00, // Logical Minimum (0),
0x25, 0x01, // Logical Maximum (1),
0x81, 0x02, // Input (Data, Variable, Absolute), ;Modifier byte
0x95, 0x08, // Report Count (8),
0x75, 0x01, // Report Size (1),
0x15, 0x00, // Logical Minimum (0),
0x25, 0x01, // Logical Maximum (1),
0x05, 0x0C, // Usage Page (Consumer),
0x09, 0xE9, // Usage (Volume Increment),
0x09, 0xEA, // Usage (Volume Decrement),
0x09, 0xE2, // Usage (Mute),
0x09, 0xCD, // Usage (Play/Pause),
0x09, 0xB5, // Usage (Scan Next Track),
0x09, 0xB6, // Usage (Scan Previous Track),
0x09, 0xB7, // Usage (Stop),
0x09, 0xB8, // Usage (Eject),
0x81, 0x02, // Input (Data, Variable, Absolute), ;Media keys
0x95, 0x05, // Report Count (5),
0x75, 0x01, // Report Size (1),
0x05, 0x08, // Usage Page (LEDs),
0x19, 0x01, // Usage Minimum (1),
0x29, 0x05, // Usage Maximum (5),
0x91, 0x02, // Output (Data, Variable, Absolute), ;LED report
0x95, 0x01, // Report Count (1),
0x75, 0x03, // Report Size (3),
0x91, 0x03, // Output (Constant), ;LED report padding
0x95, 0x06, // Report Count (6),
0x75, 0x08, // Report Size (8),
0x15, 0x00, // Logical Minimum (0),
0x25, 0x7F, // Logical Maximum(104),
0x05, 0x07, // Usage Page (Key Codes),
0x19, 0x00, // Usage Minimum (0),
0x29, 0x7F, // Usage Maximum (104),
0x81, 0x00, // Input (Data, Array), ;Normal keys
0xc0 // End Collection
};
#endif
#ifdef MOUSE_INTERFACE
// Mouse Protocol 1, HID 1.11 spec, Appendix B, page 59-60, with wheel extension
static uint8_t mouse_report_desc[] = {
0x05, 0x01, // Usage Page (Generic Desktop)
0x09, 0x02, // Usage (Mouse)
0xA1, 0x01, // Collection (Application)
0x05, 0x09, // Usage Page (Button)
0x19, 0x01, // Usage Minimum (Button #1)
0x29, 0x03, // Usage Maximum (Button #3)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x95, 0x03, // Report Count (3)
0x75, 0x01, // Report Size (1)
0x81, 0x02, // Input (Data, Variable, Absolute)
0x95, 0x01, // Report Count (1)
0x75, 0x05, // Report Size (5)
0x81, 0x03, // Input (Constant)
0x05, 0x01, // Usage Page (Generic Desktop)
0x09, 0x30, // Usage (X)
0x09, 0x31, // Usage (Y)
0x15, 0x81, // Logical Minimum (-127)
0x25, 0x7F, // Logical Maximum (127)
0x75, 0x08, // Report Size (8),
0x95, 0x02, // Report Count (2),
0x81, 0x06, // Input (Data, Variable, Relative)
0x09, 0x38, // Usage (Wheel)
0x95, 0x01, // Report Count (1),
0x81, 0x06, // Input (Data, Variable, Relative)
0xC0 // End Collection
};
#endif
// **************************************************************
// USB Configuration
// **************************************************************
// USB Configuration Descriptor. This huge descriptor tells all
// of the devices capbilities.
static uint8_t config_descriptor[CONFIG_DESC_SIZE] = {
// configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
9, // bLength;
2, // bDescriptorType;
LSB(CONFIG_DESC_SIZE), // wTotalLength
MSB(CONFIG_DESC_SIZE),
NUM_INTERFACE, // bNumInterfaces
1, // bConfigurationValue
0, // iConfiguration
0xC0, // bmAttributes
50, // bMaxPower
#ifdef CDC_IAD_DESCRIPTOR
// interface association descriptor, USB ECN, Table 9-Z
8, // bLength
11, // bDescriptorType
CDC_STATUS_INTERFACE, // bFirstInterface
2, // bInterfaceCount
0x02, // bFunctionClass
0x02, // bFunctionSubClass
0x01, // bFunctionProtocol
4, // iFunction
#endif
#ifdef CDC_DATA_INTERFACE
// interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
9, // bLength
4, // bDescriptorType
CDC_STATUS_INTERFACE, // bInterfaceNumber
0, // bAlternateSetting
1, // bNumEndpoints
0x02, // bInterfaceClass
0x02, // bInterfaceSubClass
0x01, // bInterfaceProtocol
0, // iInterface
// CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26
5, // bFunctionLength
0x24, // bDescriptorType
0x00, // bDescriptorSubtype
0x10, 0x01, // bcdCDC
// Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27
5, // bFunctionLength
0x24, // bDescriptorType
0x01, // bDescriptorSubtype
0x01, // bmCapabilities
1, // bDataInterface
// Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28
4, // bFunctionLength
0x24, // bDescriptorType
0x02, // bDescriptorSubtype
0x06, // bmCapabilities
// Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33
5, // bFunctionLength
0x24, // bDescriptorType
0x06, // bDescriptorSubtype
CDC_STATUS_INTERFACE, // bMasterInterface
CDC_DATA_INTERFACE, // bSlaveInterface0
// endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
7, // bLength
5, // bDescriptorType
CDC_ACM_ENDPOINT | 0x80, // bEndpointAddress
0x03, // bmAttributes (0x03=intr)
CDC_ACM_SIZE, 0, // wMaxPacketSize
64, // bInterval
// interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
9, // bLength
4, // bDescriptorType
CDC_DATA_INTERFACE, // bInterfaceNumber
0, // bAlternateSetting
2, // bNumEndpoints
0x0A, // bInterfaceClass
0x00, // bInterfaceSubClass
0x00, // bInterfaceProtocol
0, // iInterface
// endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
7, // bLength
5, // bDescriptorType
CDC_RX_ENDPOINT, // bEndpointAddress
0x02, // bmAttributes (0x02=bulk)
CDC_RX_SIZE, 0, // wMaxPacketSize
0, // bInterval
// endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
7, // bLength
5, // bDescriptorType
CDC_TX_ENDPOINT | 0x80, // bEndpointAddress
0x02, // bmAttributes (0x02=bulk)
CDC_TX_SIZE, 0, // wMaxPacketSize
0, // bInterval
#endif // CDC_DATA_INTERFACE
#ifdef KEYBOARD_INTERFACE
// interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
9, // bLength
4, // bDescriptorType
KEYBOARD_INTERFACE, // bInterfaceNumber
0, // bAlternateSetting
1, // bNumEndpoints
0x03, // bInterfaceClass (0x03 = HID)
0x01, // bInterfaceSubClass (0x01 = Boot)
0x01, // bInterfaceProtocol (0x01 = Keyboard)
0, // iInterface
// HID interface descriptor, HID 1.11 spec, section 6.2.1
9, // bLength
0x21, // bDescriptorType
0x11, 0x01, // bcdHID
0, // bCountryCode
1, // bNumDescriptors
0x22, // bDescriptorType
LSB(sizeof(keyboard_report_desc)), // wDescriptorLength
MSB(sizeof(keyboard_report_desc)),
// endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
7, // bLength
5, // bDescriptorType
KEYBOARD_ENDPOINT | 0x80, // bEndpointAddress
0x03, // bmAttributes (0x03=intr)
KEYBOARD_SIZE, 0, // wMaxPacketSize
KEYBOARD_INTERVAL, // bInterval
#endif // KEYBOARD_INTERFACE
#ifdef MOUSE_INTERFACE
// interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
9, // bLength
4, // bDescriptorType
MOUSE_INTERFACE, // bInterfaceNumber
0, // bAlternateSetting
1, // bNumEndpoints
0x03, // bInterfaceClass (0x03 = HID)
0x01, // bInterfaceSubClass (0x01 = Boot)
0x02, // bInterfaceProtocol (0x02 = Mouse)
0, // iInterface
// HID interface descriptor, HID 1.11 spec, section 6.2.1
9, // bLength
0x21, // bDescriptorType
0x11, 0x01, // bcdHID
0, // bCountryCode
1, // bNumDescriptors
0x22, // bDescriptorType
LSB(sizeof(mouse_report_desc)), // wDescriptorLength
MSB(sizeof(mouse_report_desc)),
// endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
7, // bLength
5, // bDescriptorType
MOUSE_ENDPOINT | 0x80, // bEndpointAddress
0x03, // bmAttributes (0x03=intr)
MOUSE_SIZE, 0, // wMaxPacketSize
MOUSE_INTERVAL, // bInterval
#endif // MOUSE_INTERFACE
};
// **************************************************************
// String Descriptors
// **************************************************************
// The descriptors above can provide human readable strings,
// referenced by index numbers. These descriptors are the
// actual string data
struct usb_string_descriptor_struct {
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t wString[];
};
static struct usb_string_descriptor_struct string0 = {
4,
3,
{0x0409}
};
static struct usb_string_descriptor_struct string1 = {
sizeof(STR_MANUFACTURER),
3,
STR_MANUFACTURER
};
static struct usb_string_descriptor_struct string2 = {
sizeof(STR_PRODUCT),
3,
STR_PRODUCT
};
static struct usb_string_descriptor_struct string3 = {
sizeof(STR_SERIAL),
3,
STR_SERIAL
};
// **************************************************************
// Descriptors List
// **************************************************************
// This table provides access to all the descriptor data above.
const usb_descriptor_list_t usb_descriptor_list[] = {
//wValue, wIndex, address, length
{0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
{0x0200, 0x0000, config_descriptor, sizeof(config_descriptor)},
#ifdef KEYBOARD_INTERFACE
{0x2200, KEYBOARD_INTERFACE, keyboard_report_desc, sizeof(keyboard_report_desc)},
{0x2100, KEYBOARD_INTERFACE, config_descriptor+KEYBOARD_DESC_OFFSET, 9},
#endif
#ifdef MOUSE_INTERFACE
{0x2200, MOUSE_INTERFACE, mouse_report_desc, sizeof(mouse_report_desc)},
{0x2100, MOUSE_INTERFACE, config_descriptor+MOUSE_DESC_OFFSET, 9},
#endif
{0x0300, 0x0000, (const uint8_t *)&string0, 4},
{0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
{0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)},
{0x0303, 0x0409, (const uint8_t *)&string3, sizeof(STR_SERIAL)},
{0, 0, NULL, 0}
};
// **************************************************************
// Endpoint Configuration
// **************************************************************
#if 0
// 0x00 = not used
// 0x19 = Recieve only
// 0x15 = Transmit only
// 0x1D = Transmit & Recieve
//
const uint8_t usb_endpoint_config_table[NUM_ENDPOINTS] =
{
0x00, 0x15, 0x19, 0x15, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
#endif
const uint8_t usb_endpoint_config_table[NUM_ENDPOINTS] =
{
#if (defined(ENDPOINT1_CONFIG) && NUM_ENDPOINTS >= 1)
ENDPOINT1_CONFIG,
#elif (NUM_ENDPOINTS >= 1)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT2_CONFIG) && NUM_ENDPOINTS >= 2)
ENDPOINT2_CONFIG,
#elif (NUM_ENDPOINTS >= 2)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT3_CONFIG) && NUM_ENDPOINTS >= 3)
ENDPOINT3_CONFIG,
#elif (NUM_ENDPOINTS >= 3)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT4_CONFIG) && NUM_ENDPOINTS >= 4)
ENDPOINT4_CONFIG,
#elif (NUM_ENDPOINTS >= 4)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT5_CONFIG) && NUM_ENDPOINTS >= 5)
ENDPOINT5_CONFIG,
#elif (NUM_ENDPOINTS >= 5)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT6_CONFIG) && NUM_ENDPOINTS >= 6)
ENDPOINT6_CONFIG,
#elif (NUM_ENDPOINTS >= 6)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT7_CONFIG) && NUM_ENDPOINTS >= 7)
ENDPOINT7_CONFIG,
#elif (NUM_ENDPOINTS >= 7)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT8_CONFIG) && NUM_ENDPOINTS >= 8)
ENDPOINT8_CONFIG,
#elif (NUM_ENDPOINTS >= 8)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT9_CONFIG) && NUM_ENDPOINTS >= 9)
ENDPOINT9_CONFIG,
#elif (NUM_ENDPOINTS >= 9)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT10_CONFIG) && NUM_ENDPOINTS >= 10)
ENDPOINT10_CONFIG,
#elif (NUM_ENDPOINTS >= 10)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT11_CONFIG) && NUM_ENDPOINTS >= 11)
ENDPOINT11_CONFIG,
#elif (NUM_ENDPOINTS >= 11)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT12_CONFIG) && NUM_ENDPOINTS >= 12)
ENDPOINT12_CONFIG,
#elif (NUM_ENDPOINTS >= 12)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT13_CONFIG) && NUM_ENDPOINTS >= 13)
ENDPOINT13_CONFIG,
#elif (NUM_ENDPOINTS >= 13)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT14_CONFIG) && NUM_ENDPOINTS >= 14)
ENDPOINT14_CONFIG,
#elif (NUM_ENDPOINTS >= 14)
ENDPOINT_UNUSED,
#endif
#if (defined(ENDPOINT15_CONFIG) && NUM_ENDPOINTS >= 15)
ENDPOINT15_CONFIG,
#elif (NUM_ENDPOINTS >= 15)
ENDPOINT_UNUSED,
#endif
};