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#include <stdlib.h>
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2
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#include <stdint.h>
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3
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#include <board.h>
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4
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#include <utility/trace.h>
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5
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#include <utility/led.h>
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6
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7
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#include <usb/common/core/USBGenericRequest.h>
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8
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#include <usb/device/core/USBD.h>
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#include <usb/device/core/USBDDriver.h>
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10
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#include <usb/device/core/USBDDriverDescriptors.h>
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#include <usb/device/core/USBDCallbacks.h>
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12
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#include <usb/common/audio/AUDGenericRequest.h>
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#include <usb/common/audio/AUDFeatureUnitRequest.h>
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14
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#include <AUDDFastSourceDescriptors.h>
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16
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#include <fast_source.h>
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17
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extern const USBDDriverDescriptors auddFastSourceDriverDescriptors;
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19
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static unsigned char driver_interfaces[3];
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20
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static USBDDriver fast_source_driver;
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21
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#define EP_NR 6
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23
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/* callback */
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void USBDCallbacks_RequestReceived(const USBGenericRequest *request)
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{
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fastsource_req_hdlr(request);
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}
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void USBDDriverCallbacks_InterfaceSettingChanged(unsigned char interface,
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unsigned char setting)
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{
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if ((interface == AUDDLoopRecDriverDescriptors_STREAMING)
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34
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&& (setting == 0))
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35
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LED_Clear(USBD_LEDOTHER);
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else
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LED_Set(USBD_LEDOTHER);
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38
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}
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39
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40
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static void fastsource_get_feat_cur_val(uint8_t entity, uint8_t channel,
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41
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uint8_t control, uint8_t length)
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42
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{
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/* FIXME */
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USBD_Stall(0);
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}
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46
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static void fastsource_set_feat_cur_val(uint8_t entity, uint8_t channel,
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48
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uint8_t control, uint8_t length)
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49
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{
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50
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/* FIXME */
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51
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USBD_Stall(0);
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52
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}
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53
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54
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void fastsource_req_hdlr(const USBGenericRequest *request)
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55
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{
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unsigned char entity;
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unsigned char interface;
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58
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switch (USBGenericRequest_GetType(request)) {
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60
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case USBGenericRequest_STANDARD:
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USBDDriver_RequestHandler(&fast_source_driver, request);
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return;
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63
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case USBGenericRequest_CLASS:
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64
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/* continue below */
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break;
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default:
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TRACE_WARNING("Unsupported request type %u\n\r",
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USBGenericRequest_GetType(request));
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69
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USBD_Stall(0);
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return;
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71
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}
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72
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switch (USBGenericRequest_GetRequest(request)) {
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74
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case AUDGenericRequest_SETCUR:
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entity = AUDGenericRequest_GetEntity(request);
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interface = AUDGenericRequest_GetInterface(request);
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if (((entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT) ||
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(entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT_REC)) &&
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(interface == AUDDLoopRecDriverDescriptors_CONTROL)) {
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fastsource_set_feat_cur_val(entity,
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AUDFeatureUnitRequest_GetChannel(request),
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AUDFeatureUnitRequest_GetControl(request),
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USBGenericRequest_GetLength(request));
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} else {
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TRACE_WARNING("Unsupported entity/interface combination 0x%04x\n\r",
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86
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USBGenericRequest_GetIndex(request));
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87
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USBD_Stall(0);
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}
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break;
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case AUDGenericRequest_GETCUR:
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entity = AUDGenericRequest_GetEntity(request);
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interface = AUDGenericRequest_GetInterface(request);
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if (((entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT) ||
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(entity == AUDDLoopRecDriverDescriptors_FEATUREUNIT_REC)) &&
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(interface == AUDDLoopRecDriverDescriptors_CONTROL)) {
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fastsource_get_feat_cur_val(entity,
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AUDFeatureUnitRequest_GetChannel(request),
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AUDFeatureUnitRequest_GetControl(request),
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USBGenericRequest_GetLength(request));
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100
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} else {
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TRACE_WARNING("Unsupported entity/interface combination 0x%04x\n\r",
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USBGenericRequest_GetIndex(request));
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103
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USBD_Stall(0);
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}
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break;
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default:
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TRACE_WARNING("Unsupported request %u\n\r",
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USBGenericRequest_GetIndex(request));
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109
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USBD_Stall(0);
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break;
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}
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112
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}
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113
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114
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void fastsource_init(void)
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{
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USBDDriver_Initialize(&fast_source_driver, &auddFastSourceDriverDescriptors,
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driver_interfaces);
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118
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USBD_Init();
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120
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}
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121
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122
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const uint8_t test_data[AUDDLoopRecDriver_BYTESPERFRAME] = {
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123
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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124
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0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
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125
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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126
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0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f };
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127
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128
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static void wr_compl_cb(void *arg, unsigned char status, unsigned int transferred,
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129
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unsigned int remain)
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130
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{
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//TRACE_INFO("COMPL: status %u transferred %u remain %u\r\n", status, transferred, remain);
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132
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//TRACE_INFO(".");
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133
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if (status == 0 && remain == 0) {
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fastsource_start();
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} else {
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TRACE_WARNING("Err: EP%u wr_compl, status 0x%02u, xfr %u, remain %u\r\n",
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EP_NR, status, transferred, remain);
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139
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}
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140
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}
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141
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142
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void fastsource_start(void)
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143
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{
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144
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//TRACE_WARNING("DATA: %02x %02x %02x %02x\r\n", test_data[0], test_data[1], test_data[2], test_data[3]);
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145
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USBD_Write(EP_NR, test_data, sizeof(test_data), wr_compl_cb, NULL);
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146
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}
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147
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148
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void fastsource_dump(void)
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149
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{
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150
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printf("usb pending: ");
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151
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printf("ssc pending:");
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152
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llist_for_each_entry_safe(rctx, rctx2, &ssc_state.pending_rctx, list)
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153
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printf(" %d", req_ctx_num(rctx));
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154
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printf("\r\n");
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155
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}
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