Mercurial > louis > kiibohd-controller

annotate Bootloader/dfu.c @ 412:e7a3be42ae1e

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Debug code for interconnect cable debugging
author Jacob Alexander <haata@kiibohd.com>
date Sat, 20 Feb 2016 13:27:49 -0800
parents 795cc567b018
children
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rev   line source
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1 /* Copyright (c) 2011,2012 Simon Schubert <2@0x2c.org>.
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2 * Modifications by Jacob Alexander 2014-2015 <haata@kiibohd.com>
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3 *
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4 * This program is free software: you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation, either version 3 of the License, or
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7 * (at your option) any later version.
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8 *
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9 * This program is distributed in the hope that it will be useful,
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10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 * GNU General Public License for more details.
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13 *
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14 * You should have received a copy of the GNU General Public License
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15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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16 */
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17
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18 // ----- Local Includes -----
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19
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20 #include "usb.h"
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21 #include "dfu.h"
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22 #include "debug.h"
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23
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26 // ----- Functions -----
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27
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28 void dfu_write_done( enum dfu_status err, struct dfu_ctx *ctx )
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29 {
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30 ctx->status = err;
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31 if (ctx->status == DFU_STATUS_OK) {
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32 switch (ctx->state) {
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33 case DFU_STATE_dfuDNBUSY:
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34 ctx->state = DFU_STATE_dfuDNLOAD_IDLE;
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35 break;
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36 default:
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37 break;
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38 }
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39 } else {
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40 ctx->state = DFU_STATE_dfuERROR;
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41 }
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42 }
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43
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44 static void dfu_dnload_complete( void *buf, ssize_t len, void *cbdata )
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45 {
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46 struct dfu_ctx *ctx = cbdata;
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47
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48 if (len > 0)
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49 ctx->state = DFU_STATE_dfuDNBUSY;
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50 else
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51 ctx->state = DFU_STATE_dfuMANIFEST;
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52 ctx->status = ctx->finish_write(buf, ctx->off, len);
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53 ctx->off += len;
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54 ctx->len = len;
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55
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56 if (ctx->status != DFU_STATUS_async)
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57 dfu_write_done(ctx->status, ctx);
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58
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59 usb_handle_control_status(ctx->state == DFU_STATE_dfuERROR);
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60 }
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61
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62 static void dfu_reset_system( void *buf, ssize_t len, void *cbdata )
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63 {
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64 SOFTWARE_RESET();
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65 }
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66
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67 static int dfu_handle_control( struct usb_ctrl_req_t *req, void *data )
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68 {
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69 struct dfu_ctx *ctx = data;
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70 int fail = 1;
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71
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72 switch ((enum dfu_ctrl_req_code)req->bRequest)
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73 {
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74 case USB_CTRL_REQ_DFU_DNLOAD: {
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75 void *buf;
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76
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77 switch (ctx->state) {
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78 case DFU_STATE_dfuIDLE:
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79 ctx->off = 0;
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80 break;
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81 case DFU_STATE_dfuDNLOAD_IDLE:
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82 break;
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83 default:
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84 goto err;
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85 }
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86
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87 /**
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88 * XXX we are not allowed to STALL here, and we need to eat all transferred data.
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89 * better not allow setup_write to break the protocol.
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90 */
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91 ctx->status = ctx->setup_write(ctx->off, req->wLength, &buf);
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92 if (ctx->status != DFU_STATUS_OK) {
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93 ctx->state = DFU_STATE_dfuERROR;
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94 goto err_have_status;
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95 }
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96
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97 if (req->wLength > 0)
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98 usb_ep0_rx(buf, req->wLength, dfu_dnload_complete, ctx);
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99 else
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100 dfu_dnload_complete(NULL, 0, ctx);
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101 goto out_no_status;
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102 }
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103 case USB_CTRL_REQ_DFU_UPLOAD: {
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104 /*
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105 void *buf;
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106 size_t len = 0;
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107
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108 switch ( ctx->state )
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109 {
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110 case DFU_STATE_dfuIDLE:
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111 break;
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112 case DFU_STATE_dfuUPLOAD_IDLE:
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113 break;
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114 default:
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115 goto err;
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116 }
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117
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118 // Find which sector to read
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119 ctx->status = ctx->setup_read(ctx->off, &len, &buf);
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120 print("UPLOAD off:");
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121 printHex( ctx->off );
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122 print(" len:");
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123 printHex( len );
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124 print(" addr:");
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125 printHex( (uint32_t)buf );
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126 print( NL );
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127
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128 if ( ctx->status != DFU_STATUS_OK || len > req->wLength )
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129 {
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130 ctx->state = DFU_STATE_dfuERROR;
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131 goto err_have_status;
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132 }
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133
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134 // Send bytes to Host
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135 if ( len > 0 )
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136 {
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137 usb_ep0_rx( buf, len, NULL, NULL );
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138 }
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139 else
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140 {
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141 ctx->state = DFU_STATE_dfuIDLE;
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142 }
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143
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144 goto out_no_status;
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145 */
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146 return 0;
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147 }
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148 case USB_CTRL_REQ_DFU_GETSTATUS: {
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149 struct dfu_status_t st;
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150
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151 st.bState = ctx->state;
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152 st.bStatus = ctx->status;
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153 st.bwPollTimeout = 1000; /* XXX */
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154
308
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155 /**
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156 * If we're in DFU_STATE_dfuMANIFEST, we just finished
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157 * the download, and we're just about to send our last
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158 * status report. Once the report has been sent, go
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159 * and reset the system to put the new firmware into
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160 * effect.
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161 */
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162 usb_ep0_tx_cp(&st, sizeof(st), req->wLength, NULL, NULL);
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163 if (ctx->state == DFU_STATE_dfuMANIFEST) {
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164 usb_handle_control_status_cb(dfu_reset_system);
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165 goto out_no_status;
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166 }
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167 break;
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168 }
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169 case USB_CTRL_REQ_DFU_CLRSTATUS:
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170 ctx->state = DFU_STATE_dfuIDLE;
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171 ctx->status = DFU_STATUS_OK;
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172 break;
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173 case USB_CTRL_REQ_DFU_GETSTATE: {
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174 uint8_t st = ctx->state;
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175 usb_ep0_tx_cp(&st, sizeof(st), req->wLength, NULL, NULL);
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176 break;
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177 }
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178 case USB_CTRL_REQ_DFU_ABORT:
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179 switch (ctx->state) {
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180 case DFU_STATE_dfuIDLE:
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181 case DFU_STATE_dfuDNLOAD_IDLE:
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182 case DFU_STATE_dfuUPLOAD_IDLE:
308
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183 ctx->state = DFU_STATE_dfuIDLE;
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184 break;
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185 default:
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186 goto err;
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187 }
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188 break;
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189 default:
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190 return (0);
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191 }
193
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192
308
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193 fail = 0;
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194 goto out;
193
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195
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196 err:
308
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197 ctx->status = DFU_STATUS_errSTALLEDPKT;
193
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198 err_have_status:
308
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199 ctx->state = DFU_STATE_dfuERROR;
193
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200 out:
308
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diff changeset
201 usb_handle_control_status(fail);
193
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202 out_no_status:
308
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diff changeset
203 return (1);
193
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204 }
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205
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diff changeset
206 void dfu_init( dfu_setup_read_t setup_read, dfu_setup_write_t setup_write, dfu_finish_write_t finish_write, struct dfu_ctx *ctx )
193
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207 {
308
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208 ctx->state = DFU_STATE_dfuIDLE;
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diff changeset
209 ctx->setup_read = setup_read;
308
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210 ctx->setup_write = setup_write;
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211 ctx->finish_write = finish_write;
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212 usb_attach_function(&dfu_function, &ctx->header);
193
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213 }
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214
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215 const struct usbd_function dfu_function = {
308
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216 .control = dfu_handle_control,
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217 .interface_count = USB_FUNCTION_DFU_IFACE_COUNT,
193
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parents:
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218 };
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parents:
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219