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   1 /*\r
   2  * @brief USB Endpoint definitions for the LPC11Uxx microcontrollers\r
   3  *\r
   4  * @note\r
   5  * Copyright(C) NXP Semiconductors, 2012\r
   6  * All rights reserved.\r
   7  *\r
   8  * @par\r
   9  * Software that is described herein is for illustrative purposes only\r
  10  * which provides customers with programming information regarding the\r
  11  * LPC products.  This software is supplied "AS IS" without any warranties of\r
  12  * any kind, and NXP Semiconductors and its licensor disclaim any and\r
  13  * all warranties, express or implied, including all implied warranties of\r
  14  * merchantability, fitness for a particular purpose and non-infringement of\r
  15  * intellectual property rights.  NXP Semiconductors assumes no responsibility\r
  16  * or liability for the use of the software, conveys no license or rights under any\r
  17  * patent, copyright, mask work right, or any other intellectual property rights in\r
  18  * or to any products. NXP Semiconductors reserves the right to make changes\r
  19  * in the software without notification. NXP Semiconductors also makes no\r
  20  * representation or warranty that such application will be suitable for the\r
  21  * specified use without further testing or modification.\r
  22  *\r
  23  * @par\r
  24  * Permission to use, copy, modify, and distribute this software and its\r
  25  * documentation is hereby granted, under NXP Semiconductors' and its\r
  26  * licensor's relevant copyrights in the software, without fee, provided that it\r
  27  * is used in conjunction with NXP Semiconductors microcontrollers.  This\r
  28  * copyright, permission, and disclaimer notice must appear in all copies of\r
  29  * this code.\r
  30  */\r
  31 \r
  32 #define  __INCLUDE_FROM_USB_DRIVER\r
  33 #include "../../USBMode.h"\r
  34 \r
  35 #if (defined(__LPC11U1X__) || defined(__LPC11U2X_3X__) || defined(__LPC1347__)) && defined(USB_CAN_BE_DEVICE)\r
  36 #include "../../Endpoint.h"\r
  37 \r
  38 #if defined(USB_DEVICE_ROM_DRIVER)\r
  39 \r
  40 PRAGMA_ALIGN_256\r
  41 uint8_t usb_RomDriver_buffer[ROMDRIVER_MEM_SIZE] ATTR_ALIGNED(256);\r
  42 PRAGMA_ALIGN_4\r
  43 uint8_t usb_RomDriver_MSC_buffer[ROMDRIVER_MSC_MEM_SIZE] ATTR_ALIGNED(4);\r
  44 PRAGMA_ALIGN_4\r
  45 uint8_t usb_RomDriver_CDC_buffer[ROMDRIVER_CDC_MEM_SIZE] ATTR_ALIGNED(4);\r
  46 /** Endpoint IN buffer, used for DMA operation */\r
  47 PRAGMA_ALIGN_4\r
  48 uint8_t UsbdCdc_EPIN_buffer[CDC_MAX_BULK_EP_SIZE] ATTR_ALIGNED(4);\r
  49 /** Endpoint OUT buffer, used for DMA operation */\r
  50 PRAGMA_ALIGN_4\r
  51 uint8_t UsbdCdc_EPOUT_buffer[CDC_MAX_BULK_EP_SIZE] ATTR_ALIGNED(4);\r
  52 PRAGMA_ALIGN_4\r
  53 uint8_t usb_RomDriver_HID_buffer[ROMDRIVER_HID_MEM_SIZE] ATTR_ALIGNED(4);\r
  54 \r
  55 #endif\r
  56 \r
  57 #define IsOutEndpoint(PhysicalEP)       (!((PhysicalEP) & 1) )\r
  58 PRAGMA_ALIGN_256\r
  59 /*static*/ USB_CMD_STAT EndPointCmdStsList[USED_PHYSICAL_ENDPOINTS][2] __BSS(USBRAM_SECTION) ATTR_ALIGNED(256);/* 10 endpoints with 2 buffers each */\r
  60 PRAGMA_ALIGN_64\r
  61 static uint8_t SetupPackage[8] __BSS(USBRAM_SECTION) ATTR_ALIGNED(64);\r
  62 uint32_t EndpointMaxPacketSize[USED_PHYSICAL_ENDPOINTS];\r
  63 uint32_t Remain_length[ENDPOINT_DETAILS_MAXEP];\r
  64 bool shortpacket, epout_primed;\r
  65 uint16_t stream_total_packets;\r
  66 \r
  67 void HAL_Reset(void)\r
  68 {\r
  69         LPC_USB->EPINUSE = 0;\r
  70         LPC_USB->EPSKIP = 0xFFFFFFFF;\r
  71         LPC_USB->EPBUFCFG = 0;\r
  72 \r
  73         LPC_USB->DEVCMDSTAT |= USB_EN | USB_IntOnNAK_AO | USB_IntOnNAK_CO;\r
  74         /* Clear all EP interrupts, device status, and SOF interrupts. */\r
  75         LPC_USB->INTSTAT = 0xC00003FF;\r
  76         /* Enable all ten(10) EPs interrupts including EP0, note: EP won't be\r
  77            ready until it's configured/enabled when device sending SetEPStatus command\r
  78            to the command engine. */\r
  79         LPC_USB->INTEN  = DEV_STAT_INT;\r
  80 \r
  81         /* Initialize EP Command/Status List. */\r
  82         LPC_USB->EPLISTSTART = (uint32_t) EndPointCmdStsList;\r
  83         LPC_USB->DATABUFSTART = ((uint32_t) usb_data_buffer) & 0xFFC00000;\r
  84 \r
  85         memset(EndPointCmdStsList, 0, sizeof(EndPointCmdStsList) );\r
  86 \r
  87         HAL_SetDeviceAddress(0);\r
  88 \r
  89         shortpacket = epout_primed = false;\r
  90 \r
  91 }\r
  92 \r
  93 bool Endpoint_ConfigureEndpointControl(const uint16_t Size)\r
  94 {\r
  95         /* Endpoint Control OUT Buffer 0 */\r
  96         EndPointCmdStsList[0][0].BufferAddrOffset = 0;\r
  97         EndPointCmdStsList[0][0].NBytes = 0x200;\r
  98         EndPointCmdStsList[0][0].Active = 0;\r
  99 \r
 100         /* Setup Buffer */\r
 101         EndPointCmdStsList[0][1].BufferAddrOffset = ( ((uint32_t) SetupPackage) >> 6) & 0xFFFF;\r
 102 \r
 103         /* Endpoint Control IN Buffer 0 */\r
 104         EndPointCmdStsList[1][0].BufferAddrOffset = 0;\r
 105         EndPointCmdStsList[1][0].NBytes = 0;\r
 106         EndPointCmdStsList[1][0].Active = 0;\r
 107 \r
 108         LPC_USB->INTSTAT &= ~3;\r
 109         LPC_USB->INTEN |= 3;\r
 110 \r
 111         EndpointMaxPacketSize[0] = EndpointMaxPacketSize[1] = Size;\r
 112 \r
 113         return true;\r
 114 }\r
 115 \r
 116 bool Endpoint_ConfigureEndpoint(uint8_t corenum, const uint8_t Number, const uint8_t Type,\r
 117                                                                 const uint8_t Direction, const uint16_t Size, const uint8_t Banks)\r
 118 {\r
 119         uint32_t PhyEP = 2 * Number + (Direction == ENDPOINT_DIR_OUT ? 0 : 1);\r
 120 \r
 121         memset(EndPointCmdStsList[PhyEP], 0, sizeof(USB_CMD_STAT) * 2);\r
 122         EndPointCmdStsList[PhyEP][0].NBytes = IsOutEndpoint(PhyEP) ? 0x200 : 0;\r
 123 \r
 124         LPC_USB->INTSTAT &= ~(1 << PhyEP);\r
 125         LPC_USB->INTEN |= (1 << PhyEP);\r
 126 \r
 127         EndpointMaxPacketSize[PhyEP] = Size;\r
 128         endpointhandle(corenum)[Number] = (Number == ENDPOINT_CONTROLEP) ? ENDPOINT_CONTROLEP : PhyEP;\r
 129 \r
 130         return true;\r
 131 }\r
 132 \r
 133 void Endpoint_Streaming(uint8_t corenum, uint8_t *buffer, uint16_t packetsize,\r
 134                                                 uint16_t totalpackets, uint16_t dummypackets)\r
 135 {\r
 136         uint8_t PhyEP = endpointhandle(corenum)[endpointselected[corenum]];\r
 137         uint16_t i;\r
 138 \r
 139         if (PhyEP & 1) {\r
 140                 for (i = 0; i < totalpackets; i++) {\r
 141                         while (!Endpoint_IsReadWriteAllowed(corenum)) ;\r
 142                         Endpoint_Write_Stream_LE(corenum,(void *) (buffer + i * packetsize), packetsize, NULL);\r
 143                         Endpoint_ClearIN(corenum);\r
 144                 }\r
 145                 for (i = 0; i < dummypackets; i++) {\r
 146                         while (!Endpoint_IsReadWriteAllowed(corenum)) ;\r
 147                         Endpoint_Write_Stream_LE(corenum,(void *) buffer, packetsize, NULL);\r
 148                         Endpoint_ClearIN(corenum);\r
 149                 }\r
 150         }\r
 151         else {\r
 152                 stream_total_packets = totalpackets + dummypackets;\r
 153                 for (i = 0; i < totalpackets; i++) {\r
 154                         DcdDataTransfer(PhyEP, (uint8_t *) (buffer + i * packetsize), packetsize);\r
 155                         Endpoint_ClearOUT(corenum);\r
 156                         while (!Endpoint_IsReadWriteAllowed(corenum)) ;\r
 157                 }\r
 158                 for (i = 0; i < dummypackets; i++) {\r
 159                         DcdDataTransfer(PhyEP, buffer, packetsize);\r
 160                         Endpoint_ClearOUT(corenum);\r
 161                         while (!Endpoint_IsReadWriteAllowed(corenum)) ;\r
 162                 }\r
 163                 stream_total_packets = 0;\r
 164         }\r
 165 }\r
 166 \r
 167 void DcdDataTransfer(uint8_t EPNum, uint8_t *pData, uint32_t length)\r
 168 {\r
 169         if (EPNum & 1) {\r
 170                 if (length >= EndpointMaxPacketSize[EPNum]) {\r
 171                         if ((length == EndpointMaxPacketSize[EPNum]) && (EPNum == 1)) {\r
 172                                 shortpacket = true;\r
 173                         }\r
 174                         Remain_length[EPNum / 2] = length - EndpointMaxPacketSize[EPNum];\r
 175                         length = EndpointMaxPacketSize[EPNum];\r
 176                 }\r
 177                 else {\r
 178                         Remain_length[EPNum / 2] = 0;\r
 179                 }\r
 180                 EndPointCmdStsList[EPNum][0].NBytes = length;\r
 181         }\r
 182         EndPointCmdStsList[EPNum][0].BufferAddrOffset = ( ((uint32_t) pData) >> 6 ) & 0xFFFF;\r
 183 \r
 184         EndPointCmdStsList[EPNum][0].Active = 1;\r
 185 }\r
 186 \r
 187 void Endpoint_GetSetupPackage(uint8_t corenum, uint8_t *pData)\r
 188 {\r
 189         memcpy(pData, SetupPackage, 8);\r
 190         /* Clear endpoint control stall flag if set */\r
 191         EndPointCmdStsList[0][0].Stall = 0;\r
 192         EndPointCmdStsList[1][0].Stall = 0;\r
 193 }\r
 194 \r
 195 void USB_IRQHandler(void)\r
 196 {\r
 197         \r
 198 #if defined(USB_DEVICE_ROM_DRIVER)\r
 199         UsbdRom_IrqHandler();\r
 200 #else   \r
 201         uint32_t IntStat = LPC_USB->INTSTAT;                    \r
 202         uint32_t IntEn = LPC_USB->INTEN;\r
 203         \r
 204         IntStat &= IntEn;                                                       /* Get Interrupt Status and clear immediately. */\r
 205         \r
 206         if (IntStat == 0) {\r
 207                 return;\r
 208         }\r
 209 \r
 210         LPC_USB->INTSTAT = IntStat;\r
 211 \r
 212         /* SOF Interrupt */\r
 213         if (IntStat & FRAME_INT) {}\r
 214 \r
 215         /* Device Status Interrupt (Reset, Connect change, Suspend/Resume) */\r
 216         if (IntStat & DEV_STAT_INT) {\r
 217                 uint32_t DevCmdStat = LPC_USB->DEVCMDSTAT;                              /* Device Status */\r
 218 \r
 219                 if (DevCmdStat & USB_DRESET_C) {                                /* Reset */\r
 220                         LPC_USB->DEVCMDSTAT |= USB_DRESET_C;\r
 221                         HAL_Reset();\r
 222                         USB_DeviceState[0] = DEVICE_STATE_Default;\r
 223                         Endpoint_ConfigureEndpointControl(USB_Device_ControlEndpointSize);\r
 224                 }\r
 225 \r
 226                 if (DevCmdStat & USB_DCON_C) {                                  /* Connect change */\r
 227                         LPC_USB->DEVCMDSTAT |= USB_DCON_C;\r
 228                 }\r
 229 \r
 230                 if (DevCmdStat & USB_DSUS_C) {                                  /* Suspend/Resume */\r
 231                         LPC_USB->DEVCMDSTAT |= USB_DSUS_C;\r
 232                         if (DevCmdStat & USB_DSUS) {                            /* Suspend */\r
 233                         }\r
 234                         else {                                                          /* Resume */\r
 235                         }\r
 236                 }\r
 237         }\r
 238 \r
 239         /* Endpoint's Interrupt */\r
 240         if (IntStat & 0x3FF) {  /* if any of the EP0 through EP9 is set, or bit 0 through 9 on disr */\r
 241                 uint32_t PhyEP;\r
 242                 for (PhyEP = 0; PhyEP < USED_PHYSICAL_ENDPOINTS; PhyEP++) /* Check All Endpoints */\r
 243                         if ( IntStat & (1 << PhyEP) ) {\r
 244                                 if ( IsOutEndpoint(PhyEP) ) {   /* OUT Endpoint */\r
 245                                         if ( !Endpoint_IsSETUPReceived(0) ) {\r
 246                                                 if (EndPointCmdStsList[PhyEP][0].NBytes == 0x200) {\r
 247                                                         if (PhyEP == 0) {\r
 248                                                                 DcdDataTransfer(PhyEP, usb_data_buffer[0], 512);\r
 249                                                         }\r
 250                                                         else if (stream_total_packets == 0)   {\r
 251                                                                 DcdDataTransfer(PhyEP, usb_data_buffer_OUT[0], 512);\r
 252                                                         }\r
 253                                                         if ((PhyEP == 0) || (stream_total_packets == 0)) {\r
 254                                                                 epout_primed = true;\r
 255                                                         }\r
 256                                                 }\r
 257                                                 else {\r
 258                                                         if (epout_primed) {\r
 259                                                                 epout_primed = false;\r
 260                                                                 if (PhyEP == 0) {\r
 261                                                                         usb_data_buffer_size[0] = (512 - EndPointCmdStsList[PhyEP][0].NBytes);\r
 262                                                                 }\r
 263                                                                 else {\r
 264                                                                         usb_data_buffer_OUT_size[0] = (512 - EndPointCmdStsList[PhyEP][0].NBytes);\r
 265                                                                 }\r
 266                                                         }\r
 267                                                 }\r
 268                                         }\r
 269                                 }\r
 270                                 else {                                                          /* IN Endpoint */\r
 271                                         if (Remain_length[PhyEP / 2] > 0) {\r
 272                                                 uint32_t i;\r
 273                                                 if (PhyEP == 1) {       /* Control IN */\r
 274                                                         for (i = 0; i < Remain_length[PhyEP / 2]; i++)\r
 275                                                                 usb_data_buffer[0][i] = usb_data_buffer[0][i + EndpointMaxPacketSize[PhyEP]];\r
 276                                                         DcdDataTransfer(PhyEP, usb_data_buffer[0], Remain_length[PhyEP / 2]);\r
 277                                                 }\r
 278                                                 else {\r
 279                                                         for (i = 0; i < Remain_length[PhyEP / 2]; i++)\r
 280                                                                 usb_data_buffer_IN[0][i] = usb_data_buffer_IN[0][i + EndpointMaxPacketSize[PhyEP]];\r
 281                                                         DcdDataTransfer(PhyEP, usb_data_buffer_IN[0], Remain_length[PhyEP / 2]);\r
 282                                                 }\r
 283                                         }\r
 284                                         else {\r
 285                                                 if (PhyEP == 1) {       /* Control IN */\r
 286                                                         if (shortpacket) {\r
 287                                                                 shortpacket = false;\r
 288                                                                 DcdDataTransfer(PhyEP, usb_data_buffer[0], 0);\r
 289                                                         }\r
 290                                                 }\r
 291                                         }\r
 292                                 }\r
 293                         }\r
 294         }\r
 295 #endif\r
 296 }\r
 297 \r
 298 //#endif        // defined(USB_DEVICE_ROM_DRIVER)\r
 299 \r
 300 #endif /*__LPC11UXX__ || __LPC1347__*/\r