annotate usb.h @ 47:13a68734348b

Add watchdog timer.
author darius@Inchoate
date Mon, 20 Oct 2008 22:22:15 +1030
parents fed32b382de2
children
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1 /*
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2 * Copyright (c) 2003 Bernd Walter
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3 * All rights reserved.
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4 */
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5
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6 /* Example Source Code for USB Enumeration using a PDIUSBD11 connected to a PIC16F87x
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7 * Copyright 2001 Craig Peacock, Craig.Peacock@beyondlogic.org
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8 * 31th December 2001 http://www.beyondlogic.org
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9 */
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10
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11 typedef struct {
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12 uint8_t bmRequestType;
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13 uint8_t bRequest;
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14 uint16_t wValue;
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15 uint16_t wIndex;
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16 uint16_t wLength;
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17 } __attribute__ ((packed)) USB_SETUP_REQUEST;
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18
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19 typedef struct {
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20 uint8_t bLength;
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21 uint8_t bDescriptorType;
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22 uint16_t bcdUSB;
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23 uint8_t bDeviceClass;
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24 uint8_t bDeviceSubClass;
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25 uint8_t bDeviceProtocol;
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26 uint8_t bMaxPacketSize0;
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27 uint16_t idVendor;
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28 uint16_t idProduct;
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29 uint16_t bcdDevice;
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30 uint8_t iManufacturer;
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31 uint8_t iProduct;
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32 uint8_t iSerialNumber;
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33 uint8_t bNumConfigurations;
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34 } __attribute__ ((packed)) USB_DEVICE_DESCRIPTOR;
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36 typedef struct {
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37 uint8_t bLength;
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38 uint8_t bDescriptorType;
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39 uint8_t bEndpointAddress;
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40 uint8_t bmAttributes;
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41 uint16_t wMaxPacketSize;
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42 uint8_t bInterval;
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43 } __attribute__ ((packed)) USB_ENDPOINT_DESCRIPTOR;
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44
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45 typedef struct {
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46 uint8_t bLength;
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47 uint8_t bDescriptorType;
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48 uint16_t wTotalLength;
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49 uint8_t bNumInterfaces;
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50 uint8_t bConfigurationValue;
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51 uint8_t iConfiguration;
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52 uint8_t bmAttributes;
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53 uint8_t MaxPower;
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54 } __attribute__ ((packed)) USB_CONFIGURATION_DESCRIPTOR;
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56 typedef struct {
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57 uint8_t bLength;
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58 uint8_t bDescriptorType;
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59 uint8_t bInterfaceNumber;
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60 uint8_t bAlternateSetting;
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61 uint8_t bNumEndpoints;
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62 uint8_t bInterfaceClass;
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63 uint8_t bInterfaceSubClass;
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64 uint8_t bInterfaceProtocol;
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65 uint8_t iInterface;
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66 } __attribute__ ((packed)) USB_INTERFACE_DESCRIPTOR;
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67
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68 typedef struct {
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69 uint8_t bLength;
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70 uint8_t bDescriptorType;
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71 uint16_t wHIDClassSpecComp;
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72 uint8_t bCountry;
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73 uint8_t bNumDescriptors;
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74 uint8_t b1stDescType;
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75 uint16_t w1stDescLength;
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76 } __attribute__ ((packed)) USB_HID_DESCRIPTOR;
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78 typedef struct {
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79 USB_CONFIGURATION_DESCRIPTOR ConfigDescriptor;
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80 USB_INTERFACE_DESCRIPTOR InterfaceDescriptor0;
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81 USB_ENDPOINT_DESCRIPTOR EndpointDescriptor00;
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82 USB_ENDPOINT_DESCRIPTOR EndpointDescriptor01;
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83 USB_INTERFACE_DESCRIPTOR InterfaceDescriptor1;
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84 USB_ENDPOINT_DESCRIPTOR EndpointDescriptor10;
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85 USB_ENDPOINT_DESCRIPTOR EndpointDescriptor11;
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86 } __attribute__ ((packed)) USB_CONFIG_DATA;
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87
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88 typedef struct {
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89 uint8_t bLength;
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90 uint8_t bDescriptorType;
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91 char bString[];
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92 } __attribute__ ((packed)) STRING_DESCRIPTOR;
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93
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94 typedef struct {
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95 uint8_t bLength;
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96 uint8_t bDescriptorType;
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97 uint16_t wLANGID0;
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98 } __attribute__ ((packed)) LANGID_DESCRIPTOR;
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99
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100 #define D12_SET_ADDRESS_ENABLE 0xd0
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101 #define D12_SET_ENDPOINT_ENABLE 0xd8
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102 #define D12_SET_MODE 0xf3
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103 #define D12_SET_DMA 0xfb
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104 #define D12_READ_INTERRUPT_REGISTER 0xf4
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105 #define D12_READ_BUFFER 0xf0
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106 #define D12_WRITE_BUFFER 0xf0
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107 #define D12_ACK_SETUP 0xf2
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108 #define D12_CLEAR_BUFFER 0xf2
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109 #define D12_VALIDATE_BUFFER 0xfa
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110 #define D12_READ_LAST_TRANSACTION 0x40
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111 #define D12_SET_ENDPOINT_STATUS 0x40
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112 #define D12_READ_ENDPOINT_STATUS 0x80
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113 #define D12_READ_CHIP_ID 0xfd
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114
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115 #define D12_ENDPOINT_EP0_OUT 0x00
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116 #define D12_ENDPOINT_EP0_IN 0x01
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117 #define D12_ENDPOINT_EP1_OUT 0x02
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118 #define D12_ENDPOINT_EP1_IN 0x03
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119 #define D12_ENDPOINT_EP2_OUT 0x04
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120 #define D12_ENDPOINT_EP2_IN 0x05
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121
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122 #define D12_INT_EP0_OUT 0x01
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123 #define D12_INT_EP0_IN 0x02
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124 #define D12_INT_EP1_OUT 0x04
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125 #define D12_INT_EP1_IN 0x08
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126 #define D12_INT_EP2_OUT 0x10
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127 #define D12_INT_EP2_IN 0x20
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128 #define D12_INT_BUS_RESET 0x40
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129 #define D12_INT_SUSPEND 0x80
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130
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131 #define D12_LAST_TRAN_OK 0x01
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132 #define D12_LAST_TRAN_ERRMSK 0x1e
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133 #define D12_LAST_TRAN_SETUP 0x20
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134 #define D12_LAST_TRAN_DATA 0x40
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135 #define D12_LAST_TRAN_OFLOW 0x80
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136
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137 #define STANDARD_DEVICE_REQUEST 0x00
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138 #define STANDARD_INTERFACE_REQUEST 0x01
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139 #define STANDARD_ENDPOINT_REQUEST 0x02
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140 #define VENDOR_DEVICE_REQUEST 0x40
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141 #define VENDOR_INTERFACE_REQUEST 0x41
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142 #define VENDOR_ENDPOINT_REQUEST 0x42
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143
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144 #define GET_STATUS 0
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145 #define CLEAR_FEATURE 1
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146 #define SET_FEATURE 3
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147 #define SET_ADDRESS 5
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148 #define GET_DESCRIPTOR 6
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149 #define SET_DESCRIPTOR 7
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150 #define GET_CONFIGURATION 8
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151 #define SET_CONFIGURATION 9
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152 #define GET_INTERFACE 10
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153 #define SET_INTERFACE 11
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154 #define SYNCH_FRAME 12
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155
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156 #define VENDOR_DOTEMP 125
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157 #define VENDOR_UPDATE 126
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158 #define VENDOR_RESET 127
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159
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160 #define ENDPOINT_HALT 0
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161
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162 #define TYPE_DEVICE_DESCRIPTOR 1
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163 #define TYPE_CONFIGURATION_DESCRIPTOR 2
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164 #define TYPE_STRING_DESCRIPTOR 3
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165 #define TYPE_INTERFACE_DESCRIPTOR 4
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166 #define TYPE_ENDPOINT_DESCRIPTOR 5
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167 #define TYPE_HID_DESCRIPTOR 0x21
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168
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169 #define USB_ENDPOINT_TYPE_CONTROL 0x00
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170 #define USB_ENDPOINT_TYPE_ISOCHRONOUS 0x01
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171 #define USB_ENDPOINT_TYPE_BULK 0x02
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172 #define USB_ENDPOINT_TYPE_INTERRUPT 0x03
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173
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174 /* Function prototypes */
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175 uint8_t d12_get_data(void);
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176 void d12_set_data(uint8_t data);
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177 void d12_set_cmd(uint8_t cmd);
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178 void d12_write_cmd(uint8_t command, const uint8_t *buffer, uint8_t count);
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179 void d12_read_cmd(uint8_t command, uint8_t *buffer, uint8_t count);
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180 uint8_t d12_read_endpt(uint8_t endpt, uint8_t *buffer);
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181
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182 void d12_ep0_irq(void);
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183 void d12_handle_setup(void);
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184 void d12_getdescriptor(USB_SETUP_REQUEST *setuppkt);
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185 void d12_stallendpt(uint8_t ep);
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186 uint8_t d12_read_endpt(uint8_t endpt, uint8_t *buffer);
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187 void d12_write_endpt(uint8_t endpt, const uint8_t *buffer, uint8_t bytes);
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188 void d12_send_data_ep0(void);
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189 void d12_receive_data_ep1(void);
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190 void d12_send_data_ep2(void);
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191 void d12_receive_data_ep2(void);
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192
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193 void reset(void);
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194
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195 void usb_init(void);
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196 void usb_intr(void);
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197 void usb_gendata(void);
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198
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199 /*
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200 * The PDIUSBD12 is wired up like so
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201 *
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202 * PDI AVR
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203 * ======================
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204 * D7:0 <=> PA7:0
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205 * RD_N <= PB0
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206 * INT_N => PB1
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207 * WR_N <= PB2
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208 * A0 <= PB3 (0 = data, 1 = cmd)
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209 * SUSPEND <=> PB4
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210 */
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211
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212 #define PDIPORT PORTA
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213 #define PDIDDR PORTA
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214 #define PDICTL PORTB
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215 #define PDIRD PB0
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216 #define PDIINT PB1
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217 #define PDIWR PB2
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218 #define PDIA0 PB3
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219 #define PDISUSP PB4
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220