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Extract magic numbers from the device descriptor as macros.

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This commit is contained in:
László Monda
2016-02-25 09:26:33 +01:00
parent 0160d17d64
commit cea9182113
4 changed files with 48 additions and 27 deletions
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40
right/usb_device_descriptor.c
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@@ -3,34 +3,34 @@
#include "usb_device.h"
#include "include/usb/usb_device_class.h"
#include "include/usb/usb_device_hid.h"
#include "util.h"
#include "usb_device_descriptor.h"
#include "composite.h"
#include "hid_mouse.h"
#include "hid_keyboard.h"
#include "usb_keyboard_descriptors.h"
#include "usb_mouse_descriptors.h"
#include "hid_mouse.h"
uint8_t g_UsbDeviceDescriptor[USB_DESCRIPTOR_LENGTH_DEVICE] = {
uint8_t UsbDeviceDescriptor[USB_DESCRIPTOR_LENGTH_DEVICE] = {
USB_DESCRIPTOR_LENGTH_DEVICE,
USB_DESCRIPTOR_TYPE_DEVICE,
USB_SHORT_GET_LOW(USB_DEVICE_SPECIFIC_BCD_VERSION),
USB_SHORT_GET_HIGH(USB_DEVICE_SPECIFIC_BCD_VERSION), // USB Specification Release Number in
// Binary-Coded Decimal (i.e., 2.10 is 210H).
USB_SHORT_GET_LOW(USB_DEVICE_SPECIFICATION_BCD_VERSION),
USB_SHORT_GET_HIGH(USB_DEVICE_SPECIFICATION_BCD_VERSION),
USB_DEVICE_CLASS,
USB_DEVICE_SUBCLASS,
USB_DEVICE_PROTOCOL,
USB_CONTROL_MAX_PACKET_SIZE, // Maximum packet size for endpoint zero (only 8, 16, 32, or 64 are valid)
0xA2U, 0x15U, // Vendor ID (assigned by the USB-IF)
0x7EU, 0x00U, // Product ID (assigned by the manufacturer)
USB_SHORT_GET_LOW(USB_DEVICE_DEMO_BCD_VERSION),
USB_SHORT_GET_HIGH(USB_DEVICE_DEMO_BCD_VERSION), // Device release number in binary-coded decimal
0x01U, // Index of string descriptor describing manufacturer
0x02U, // Index of string descriptor describing product
0x00U, // Index of string descriptor describing the device's serial number
USB_CONTROL_MAX_PACKET_SIZE,
GET_LSB_OF_WORD(USB_VENDOR_ID),
GET_MSB_OF_WORD(USB_VENDOR_ID),
GET_LSB_OF_WORD(USB_PRODUCT_ID),
GET_MSB_OF_WORD(USB_PRODUCT_ID),
USB_SHORT_GET_LOW(USB_DEVICE_RELEASE_NUMBER),
USB_SHORT_GET_HIGH(USB_DEVICE_RELEASE_NUMBER),
USB_STRING_DESCRIPTOR_ID_MANUFACTURER,
USB_STRING_DESCRIPTOR_ID_PRODUCT,
USB_STRING_DESCRIPTOR_ID_SERIAL_NUMBER,
USB_DEVICE_CONFIGURATION_COUNT,
};
uint8_t g_UsbDeviceConfigurationDescriptor[USB_DESCRIPTOR_LENGTH_CONFIGURATION_ALL] = {
uint8_t UsbConfigurationDescriptor[USB_DESCRIPTOR_LENGTH_CONFIGURATION_ALL] = {
// Configuration descriptor
@@ -65,7 +65,7 @@ uint8_t g_UsbDeviceConfigurationDescriptor[USB_DESCRIPTOR_LENGTH_CONFIGURATION_A
USB_HID_MOUSE_CLASS,
USB_HID_MOUSE_SUBCLASS,
USB_HID_MOUSE_PROTOCOL,
0x03U, // Index of string descriptor describing this interface
USB_STRING_DESCRIPTOR_ID_MOUSE,
// Mouse HID descriptor
@@ -99,7 +99,7 @@ uint8_t g_UsbDeviceConfigurationDescriptor[USB_DESCRIPTOR_LENGTH_CONFIGURATION_A
USB_HID_KEYBOARD_CLASS,
USB_HID_KEYBOARD_SUBCLASS,
USB_HID_KEYBOARD_PROTOCOL,
0x04U, // Index of string descriptor describing this interface
USB_STRING_DESCRIPTOR_ID_KEYBOARD,
// Keyboard HID descriptor
@@ -203,7 +203,7 @@ usb_language_list_t g_UsbDeviceLanguageList = {
usb_status_t USB_DeviceGetDeviceDescriptor(
usb_device_handle handle, usb_device_get_device_descriptor_struct_t *deviceDescriptor)
{
deviceDescriptor->buffer = g_UsbDeviceDescriptor;
deviceDescriptor->buffer = UsbDeviceDescriptor;
deviceDescriptor->length = USB_DESCRIPTOR_LENGTH_DEVICE;
return kStatus_USB_Success;
}
@@ -212,7 +212,7 @@ usb_status_t USB_DeviceGetConfigurationDescriptor(
usb_device_handle handle, usb_device_get_configuration_descriptor_struct_t *configurationDescriptor)
{
if (USB_COMPOSITE_CONFIGURE_INDEX > configurationDescriptor->configuration) {
configurationDescriptor->buffer = g_UsbDeviceConfigurationDescriptor;
configurationDescriptor->buffer = UsbConfigurationDescriptor;
configurationDescriptor->length = USB_DESCRIPTOR_LENGTH_CONFIGURATION_ALL;
return kStatus_USB_Success;
}