CQ Publishing / Mbed 2 deprecated tg_201410s8_AD7714

Transistor Gijutsu, October 2014, Special Features Chapter 8，Software of the thermistor thermometer of 0.001 ° resolution， トランジスタ技術2014年10月号　特集第8章のソフトウェア　0.001℃分解能で気配もキャッチ「超敏感肌温度計」

Dependencies:   USBDevice mbed

Information

tg_201410s8_AD7714 トランジスタ技術 2014年 10月号 第8章のソフトウェア

Program for Section 8 in October. 2014 issue of the Transistor Gijutsu
(Japanese electronics magazine)

概要

このプログラムは、サーミスタの抵抗値変化をAD7714(24bitADC)で測定し、抵抗値を温度値に変換することで、0.001℃程度の分解能で温度変化を測定します。

ファイル

このソフトウエアは、次のファイルから構成されています。

  • AD7714.cpp - AD7714の内部レジスタを設定
  • Thermistor.cpp - サーミスタの抵抗値から温度値に変換
  • ExpAvr.cpp - 指数平均によるソフトウエアＬＰＦ
  • main.cpp - main()関数

詳細については、10月号の記事および上記ファイル中のコメントを参照してください。

USBDevice/USBDevice/USBHAL_KL25Z.cpp@0:de885a6da962, 2014-08-29 (annotated)

Committer:
Dance
Date:
Fri Aug 29 08:38:36 2014 +0000
Revision:
0:de885a6da962
Transistor Gijutsu, October 2014, Special Features Chapter 8; ????????2014?10??????8????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Dance 0:de885a6da962 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
Dance 0:de885a6da962 2 *
Dance 0:de885a6da962 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Dance 0:de885a6da962 4 * and associated documentation files (the "Software"), to deal in the Software without
Dance 0:de885a6da962 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
Dance 0:de885a6da962 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
Dance 0:de885a6da962 7 * Software is furnished to do so, subject to the following conditions:
Dance 0:de885a6da962 8 *
Dance 0:de885a6da962 9 * The above copyright notice and this permission notice shall be included in all copies or
Dance 0:de885a6da962 10 * substantial portions of the Software.
Dance 0:de885a6da962 11 *
Dance 0:de885a6da962 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Dance 0:de885a6da962 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Dance 0:de885a6da962 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Dance 0:de885a6da962 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Dance 0:de885a6da962 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Dance 0:de885a6da962 17 */
Dance 0:de885a6da962 18
Dance 0:de885a6da962 19 #if defined(TARGET_KL25Z) | defined(TARGET_KL46Z) | defined(TARGET_K20D5M) | defined(TARGET_K64F)
Dance 0:de885a6da962 20
Dance 0:de885a6da962 21 #include "USBHAL.h"
Dance 0:de885a6da962 22
Dance 0:de885a6da962 23 USBHAL * USBHAL::instance;
Dance 0:de885a6da962 24
Dance 0:de885a6da962 25 static volatile int epComplete = 0;
Dance 0:de885a6da962 26
Dance 0:de885a6da962 27 // Convert physical endpoint number to register bit
Dance 0:de885a6da962 28 #define EP(endpoint) (1<<(endpoint))
Dance 0:de885a6da962 29
Dance 0:de885a6da962 30 // Convert physical to logical
Dance 0:de885a6da962 31 #define PHY_TO_LOG(endpoint) ((endpoint)>>1)
Dance 0:de885a6da962 32
Dance 0:de885a6da962 33 // Get endpoint direction
Dance 0:de885a6da962 34 #define IN_EP(endpoint) ((endpoint) & 1U ? true : false)
Dance 0:de885a6da962 35 #define OUT_EP(endpoint) ((endpoint) & 1U ? false : true)
Dance 0:de885a6da962 36
Dance 0:de885a6da962 37 #define BD_OWN_MASK (1<<7)
Dance 0:de885a6da962 38 #define BD_DATA01_MASK (1<<6)
Dance 0:de885a6da962 39 #define BD_KEEP_MASK (1<<5)
Dance 0:de885a6da962 40 #define BD_NINC_MASK (1<<4)
Dance 0:de885a6da962 41 #define BD_DTS_MASK (1<<3)
Dance 0:de885a6da962 42 #define BD_STALL_MASK (1<<2)
Dance 0:de885a6da962 43
Dance 0:de885a6da962 44 #define TX 1
Dance 0:de885a6da962 45 #define RX 0
Dance 0:de885a6da962 46 #define ODD 0
Dance 0:de885a6da962 47 #define EVEN 1
Dance 0:de885a6da962 48 // this macro waits a physical endpoint number
Dance 0:de885a6da962 49 #define EP_BDT_IDX(ep, dir, odd) (((ep * 4) + (2 * dir) + (1 * odd)))
Dance 0:de885a6da962 50
Dance 0:de885a6da962 51 #define SETUP_TOKEN 0x0D
Dance 0:de885a6da962 52 #define IN_TOKEN 0x09
Dance 0:de885a6da962 53 #define OUT_TOKEN 0x01
Dance 0:de885a6da962 54 #define TOK_PID(idx) ((bdt[idx].info >> 2) & 0x0F)
Dance 0:de885a6da962 55
Dance 0:de885a6da962 56 // for each endpt: 8 bytes
Dance 0:de885a6da962 57 typedef struct BDT {
Dance 0:de885a6da962 58 uint8_t info; // BD[0:7]
Dance 0:de885a6da962 59 uint8_t dummy; // RSVD: BD[8:15]
Dance 0:de885a6da962 60 uint16_t byte_count; // BD[16:32]
Dance 0:de885a6da962 61 uint32_t address; // Addr
Dance 0:de885a6da962 62 } BDT;
Dance 0:de885a6da962 63
Dance 0:de885a6da962 64
Dance 0:de885a6da962 65 // there are:
Dance 0:de885a6da962 66 // * 16 bidirectionnal endpt -> 32 physical endpt
Dance 0:de885a6da962 67 // * as there are ODD and EVEN buffer -> 32*2 bdt
Dance 0:de885a6da962 68 __attribute__((__aligned__(512))) BDT bdt[NUMBER_OF_PHYSICAL_ENDPOINTS * 2];
Dance 0:de885a6da962 69 uint8_t * endpoint_buffer[(NUMBER_OF_PHYSICAL_ENDPOINTS - 2) * 2];
Dance 0:de885a6da962 70 uint8_t * endpoint_buffer_iso[2*2];
Dance 0:de885a6da962 71
Dance 0:de885a6da962 72 static uint8_t set_addr = 0;
Dance 0:de885a6da962 73 static uint8_t addr = 0;
Dance 0:de885a6da962 74
Dance 0:de885a6da962 75 static uint32_t Data1 = 0x55555555;
Dance 0:de885a6da962 76
Dance 0:de885a6da962 77 static uint32_t frameNumber() {
Dance 0:de885a6da962 78 return((USB0->FRMNUML | (USB0->FRMNUMH << 8)) & 0x07FF);
Dance 0:de885a6da962 79 }
Dance 0:de885a6da962 80
Dance 0:de885a6da962 81 uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer) {
Dance 0:de885a6da962 82 return 0;
Dance 0:de885a6da962 83 }
Dance 0:de885a6da962 84
Dance 0:de885a6da962 85 USBHAL::USBHAL(void) {
Dance 0:de885a6da962 86 // Disable IRQ
Dance 0:de885a6da962 87 NVIC_DisableIRQ(USB0_IRQn);
Dance 0:de885a6da962 88
Dance 0:de885a6da962 89 #if defined(TARGET_K64F)
Dance 0:de885a6da962 90 MPU->CESR=0;
Dance 0:de885a6da962 91 #endif
Dance 0:de885a6da962 92 // fill in callback array
Dance 0:de885a6da962 93 epCallback[0] = &USBHAL::EP1_OUT_callback;
Dance 0:de885a6da962 94 epCallback[1] = &USBHAL::EP1_IN_callback;
Dance 0:de885a6da962 95 epCallback[2] = &USBHAL::EP2_OUT_callback;
Dance 0:de885a6da962 96 epCallback[3] = &USBHAL::EP2_IN_callback;
Dance 0:de885a6da962 97 epCallback[4] = &USBHAL::EP3_OUT_callback;
Dance 0:de885a6da962 98 epCallback[5] = &USBHAL::EP3_IN_callback;
Dance 0:de885a6da962 99 epCallback[6] = &USBHAL::EP4_OUT_callback;
Dance 0:de885a6da962 100 epCallback[7] = &USBHAL::EP4_IN_callback;
Dance 0:de885a6da962 101 epCallback[8] = &USBHAL::EP5_OUT_callback;
Dance 0:de885a6da962 102 epCallback[9] = &USBHAL::EP5_IN_callback;
Dance 0:de885a6da962 103 epCallback[10] = &USBHAL::EP6_OUT_callback;
Dance 0:de885a6da962 104 epCallback[11] = &USBHAL::EP6_IN_callback;
Dance 0:de885a6da962 105 epCallback[12] = &USBHAL::EP7_OUT_callback;
Dance 0:de885a6da962 106 epCallback[13] = &USBHAL::EP7_IN_callback;
Dance 0:de885a6da962 107 epCallback[14] = &USBHAL::EP8_OUT_callback;
Dance 0:de885a6da962 108 epCallback[15] = &USBHAL::EP8_IN_callback;
Dance 0:de885a6da962 109 epCallback[16] = &USBHAL::EP9_OUT_callback;
Dance 0:de885a6da962 110 epCallback[17] = &USBHAL::EP9_IN_callback;
Dance 0:de885a6da962 111 epCallback[18] = &USBHAL::EP10_OUT_callback;
Dance 0:de885a6da962 112 epCallback[19] = &USBHAL::EP10_IN_callback;
Dance 0:de885a6da962 113 epCallback[20] = &USBHAL::EP11_OUT_callback;
Dance 0:de885a6da962 114 epCallback[21] = &USBHAL::EP11_IN_callback;
Dance 0:de885a6da962 115 epCallback[22] = &USBHAL::EP12_OUT_callback;
Dance 0:de885a6da962 116 epCallback[23] = &USBHAL::EP12_IN_callback;
Dance 0:de885a6da962 117 epCallback[24] = &USBHAL::EP13_OUT_callback;
Dance 0:de885a6da962 118 epCallback[25] = &USBHAL::EP13_IN_callback;
Dance 0:de885a6da962 119 epCallback[26] = &USBHAL::EP14_OUT_callback;
Dance 0:de885a6da962 120 epCallback[27] = &USBHAL::EP14_IN_callback;
Dance 0:de885a6da962 121 epCallback[28] = &USBHAL::EP15_OUT_callback;
Dance 0:de885a6da962 122 epCallback[29] = &USBHAL::EP15_IN_callback;
Dance 0:de885a6da962 123
Dance 0:de885a6da962 124
Dance 0:de885a6da962 125 // choose usb src as PLL
Dance 0:de885a6da962 126 SIM->SOPT2 |= (SIM_SOPT2_USBSRC_MASK | SIM_SOPT2_PLLFLLSEL_MASK);
Dance 0:de885a6da962 127
Dance 0:de885a6da962 128 // enable OTG clock
Dance 0:de885a6da962 129 SIM->SCGC4 |= SIM_SCGC4_USBOTG_MASK;
Dance 0:de885a6da962 130
Dance 0:de885a6da962 131 // Attach IRQ
Dance 0:de885a6da962 132 instance = this;
Dance 0:de885a6da962 133 NVIC_SetVector(USB0_IRQn, (uint32_t)&_usbisr);
Dance 0:de885a6da962 134 NVIC_EnableIRQ(USB0_IRQn);
Dance 0:de885a6da962 135
Dance 0:de885a6da962 136 // USB Module Configuration
Dance 0:de885a6da962 137 // Reset USB Module
Dance 0:de885a6da962 138 USB0->USBTRC0 |= USB_USBTRC0_USBRESET_MASK;
Dance 0:de885a6da962 139 while(USB0->USBTRC0 & USB_USBTRC0_USBRESET_MASK);
Dance 0:de885a6da962 140
Dance 0:de885a6da962 141 // Set BDT Base Register
Dance 0:de885a6da962 142 USB0->BDTPAGE1 = (uint8_t)((uint32_t)bdt>>8);
Dance 0:de885a6da962 143 USB0->BDTPAGE2 = (uint8_t)((uint32_t)bdt>>16);
Dance 0:de885a6da962 144 USB0->BDTPAGE3 = (uint8_t)((uint32_t)bdt>>24);
Dance 0:de885a6da962 145
Dance 0:de885a6da962 146 // Clear interrupt flag
Dance 0:de885a6da962 147 USB0->ISTAT = 0xff;
Dance 0:de885a6da962 148
Dance 0:de885a6da962 149 // USB Interrupt Enablers
Dance 0:de885a6da962 150 USB0->INTEN |= USB_INTEN_TOKDNEEN_MASK |
Dance 0:de885a6da962 151 USB_INTEN_SOFTOKEN_MASK |
Dance 0:de885a6da962 152 USB_INTEN_ERROREN_MASK |
Dance 0:de885a6da962 153 USB_INTEN_USBRSTEN_MASK;
Dance 0:de885a6da962 154
Dance 0:de885a6da962 155 // Disable weak pull downs
Dance 0:de885a6da962 156 USB0->USBCTRL &= ~(USB_USBCTRL_PDE_MASK | USB_USBCTRL_SUSP_MASK);
Dance 0:de885a6da962 157
Dance 0:de885a6da962 158 USB0->USBTRC0 |= 0x40;
Dance 0:de885a6da962 159 }
Dance 0:de885a6da962 160
Dance 0:de885a6da962 161 USBHAL::~USBHAL(void) { }
Dance 0:de885a6da962 162
Dance 0:de885a6da962 163 void USBHAL::connect(void) {
Dance 0:de885a6da962 164 // enable USB
Dance 0:de885a6da962 165 USB0->CTL |= USB_CTL_USBENSOFEN_MASK;
Dance 0:de885a6da962 166 // Pull up enable
Dance 0:de885a6da962 167 USB0->CONTROL |= USB_CONTROL_DPPULLUPNONOTG_MASK;
Dance 0:de885a6da962 168 }
Dance 0:de885a6da962 169
Dance 0:de885a6da962 170 void USBHAL::disconnect(void) {
Dance 0:de885a6da962 171 // disable USB
Dance 0:de885a6da962 172 USB0->CTL &= ~USB_CTL_USBENSOFEN_MASK;
Dance 0:de885a6da962 173 // Pull up disable
Dance 0:de885a6da962 174 USB0->CONTROL &= ~USB_CONTROL_DPPULLUPNONOTG_MASK;
Dance 0:de885a6da962 175
Dance 0:de885a6da962 176 //Free buffers if required:
Dance 0:de885a6da962 177 for (int i = 0; i<(NUMBER_OF_PHYSICAL_ENDPOINTS - 2) * 2; i++) {
Dance 0:de885a6da962 178 free(endpoint_buffer[i]);
Dance 0:de885a6da962 179 endpoint_buffer[i] = NULL;
Dance 0:de885a6da962 180 }
Dance 0:de885a6da962 181 free(endpoint_buffer_iso[2]);
Dance 0:de885a6da962 182 endpoint_buffer_iso[2] = NULL;
Dance 0:de885a6da962 183 free(endpoint_buffer_iso[0]);
Dance 0:de885a6da962 184 endpoint_buffer_iso[0] = NULL;
Dance 0:de885a6da962 185 }
Dance 0:de885a6da962 186
Dance 0:de885a6da962 187 void USBHAL::configureDevice(void) {
Dance 0:de885a6da962 188 // not needed
Dance 0:de885a6da962 189 }
Dance 0:de885a6da962 190
Dance 0:de885a6da962 191 void USBHAL::unconfigureDevice(void) {
Dance 0:de885a6da962 192 // not needed
Dance 0:de885a6da962 193 }
Dance 0:de885a6da962 194
Dance 0:de885a6da962 195 void USBHAL::setAddress(uint8_t address) {
Dance 0:de885a6da962 196 // we don't set the address now otherwise the usb controller does not ack
Dance 0:de885a6da962 197 // we set a flag instead
Dance 0:de885a6da962 198 // see usbisr when an IN token is received
Dance 0:de885a6da962 199 set_addr = 1;
Dance 0:de885a6da962 200 addr = address;
Dance 0:de885a6da962 201 }
Dance 0:de885a6da962 202
Dance 0:de885a6da962 203 bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t flags) {
Dance 0:de885a6da962 204 uint32_t handshake_flag = 0;
Dance 0:de885a6da962 205 uint8_t * buf;
Dance 0:de885a6da962 206
Dance 0:de885a6da962 207 if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
Dance 0:de885a6da962 208 return false;
Dance 0:de885a6da962 209 }
Dance 0:de885a6da962 210
Dance 0:de885a6da962 211 uint32_t log_endpoint = PHY_TO_LOG(endpoint);
Dance 0:de885a6da962 212
Dance 0:de885a6da962 213 if ((flags & ISOCHRONOUS) == 0) {
Dance 0:de885a6da962 214 handshake_flag = USB_ENDPT_EPHSHK_MASK;
Dance 0:de885a6da962 215 if (IN_EP(endpoint)) {
Dance 0:de885a6da962 216 if (endpoint_buffer[EP_BDT_IDX(log_endpoint, TX, ODD)] == NULL)
Dance 0:de885a6da962 217 endpoint_buffer[EP_BDT_IDX(log_endpoint, TX, ODD)] = (uint8_t *) malloc (64*2);
Dance 0:de885a6da962 218 buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, TX, ODD)][0];
Dance 0:de885a6da962 219 } else {
Dance 0:de885a6da962 220 if (endpoint_buffer[EP_BDT_IDX(log_endpoint, RX, ODD)] == NULL)
Dance 0:de885a6da962 221 endpoint_buffer[EP_BDT_IDX(log_endpoint, RX, ODD)] = (uint8_t *) malloc (64*2);
Dance 0:de885a6da962 222 buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, RX, ODD)][0];
Dance 0:de885a6da962 223 }
Dance 0:de885a6da962 224 } else {
Dance 0:de885a6da962 225 if (IN_EP(endpoint)) {
Dance 0:de885a6da962 226 if (endpoint_buffer_iso[2] == NULL)
Dance 0:de885a6da962 227 endpoint_buffer_iso[2] = (uint8_t *) malloc (1023*2);
Dance 0:de885a6da962 228 buf = &endpoint_buffer_iso[2][0];
Dance 0:de885a6da962 229 } else {
Dance 0:de885a6da962 230 if (endpoint_buffer_iso[0] == NULL)
Dance 0:de885a6da962 231 endpoint_buffer_iso[0] = (uint8_t *) malloc (1023*2);
Dance 0:de885a6da962 232 buf = &endpoint_buffer_iso[0][0];
Dance 0:de885a6da962 233 }
Dance 0:de885a6da962 234 }
Dance 0:de885a6da962 235
Dance 0:de885a6da962 236 // IN endpt -> device to host (TX)
Dance 0:de885a6da962 237 if (IN_EP(endpoint)) {
Dance 0:de885a6da962 238 USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag | // ep handshaking (not if iso endpoint)
Dance 0:de885a6da962 239 USB_ENDPT_EPTXEN_MASK; // en TX (IN) tran
Dance 0:de885a6da962 240 bdt[EP_BDT_IDX(log_endpoint, TX, ODD )].address = (uint32_t) buf;
Dance 0:de885a6da962 241 bdt[EP_BDT_IDX(log_endpoint, TX, EVEN)].address = 0;
Dance 0:de885a6da962 242 }
Dance 0:de885a6da962 243 // OUT endpt -> host to device (RX)
Dance 0:de885a6da962 244 else {
Dance 0:de885a6da962 245 USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag | // ep handshaking (not if iso endpoint)
Dance 0:de885a6da962 246 USB_ENDPT_EPRXEN_MASK; // en RX (OUT) tran.
Dance 0:de885a6da962 247 bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].byte_count = maxPacket;
Dance 0:de885a6da962 248 bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].address = (uint32_t) buf;
Dance 0:de885a6da962 249 bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].info = BD_OWN_MASK | BD_DTS_MASK;
Dance 0:de885a6da962 250 bdt[EP_BDT_IDX(log_endpoint, RX, EVEN)].info = 0;
Dance 0:de885a6da962 251 }
Dance 0:de885a6da962 252
Dance 0:de885a6da962 253 Data1 |= (1 << endpoint);
Dance 0:de885a6da962 254
Dance 0:de885a6da962 255 return true;
Dance 0:de885a6da962 256 }
Dance 0:de885a6da962 257
Dance 0:de885a6da962 258 // read setup packet
Dance 0:de885a6da962 259 void USBHAL::EP0setup(uint8_t *buffer) {
Dance 0:de885a6da962 260 uint32_t sz;
Dance 0:de885a6da962 261 endpointReadResult(EP0OUT, buffer, &sz);
Dance 0:de885a6da962 262 }
Dance 0:de885a6da962 263
Dance 0:de885a6da962 264 void USBHAL::EP0readStage(void) {
Dance 0:de885a6da962 265 Data1 &= ~1UL; // set DATA0
Dance 0:de885a6da962 266 bdt[0].info = (BD_DTS_MASK | BD_OWN_MASK);
Dance 0:de885a6da962 267 }
Dance 0:de885a6da962 268
Dance 0:de885a6da962 269 void USBHAL::EP0read(void) {
Dance 0:de885a6da962 270 uint32_t idx = EP_BDT_IDX(PHY_TO_LOG(EP0OUT), RX, 0);
Dance 0:de885a6da962 271 bdt[idx].byte_count = MAX_PACKET_SIZE_EP0;
Dance 0:de885a6da962 272 }
Dance 0:de885a6da962 273
Dance 0:de885a6da962 274 uint32_t USBHAL::EP0getReadResult(uint8_t *buffer) {
Dance 0:de885a6da962 275 uint32_t sz;
Dance 0:de885a6da962 276 endpointReadResult(EP0OUT, buffer, &sz);
Dance 0:de885a6da962 277 return sz;
Dance 0:de885a6da962 278 }
Dance 0:de885a6da962 279
Dance 0:de885a6da962 280 void USBHAL::EP0write(uint8_t *buffer, uint32_t size) {
Dance 0:de885a6da962 281 endpointWrite(EP0IN, buffer, size);
Dance 0:de885a6da962 282 }
Dance 0:de885a6da962 283
Dance 0:de885a6da962 284 void USBHAL::EP0getWriteResult(void) {
Dance 0:de885a6da962 285 }
Dance 0:de885a6da962 286
Dance 0:de885a6da962 287 void USBHAL::EP0stall(void) {
Dance 0:de885a6da962 288 stallEndpoint(EP0OUT);
Dance 0:de885a6da962 289 }
Dance 0:de885a6da962 290
Dance 0:de885a6da962 291 EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize) {
Dance 0:de885a6da962 292 endpoint = PHY_TO_LOG(endpoint);
Dance 0:de885a6da962 293 uint32_t idx = EP_BDT_IDX(endpoint, RX, 0);
Dance 0:de885a6da962 294 bdt[idx].byte_count = maximumSize;
Dance 0:de885a6da962 295 return EP_PENDING;
Dance 0:de885a6da962 296 }
Dance 0:de885a6da962 297
Dance 0:de885a6da962 298 EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t * buffer, uint32_t *bytesRead) {
Dance 0:de885a6da962 299 uint32_t n, sz, idx, setup = 0;
Dance 0:de885a6da962 300 uint8_t not_iso;
Dance 0:de885a6da962 301 uint8_t * ep_buf;
Dance 0:de885a6da962 302
Dance 0:de885a6da962 303 uint32_t log_endpoint = PHY_TO_LOG(endpoint);
Dance 0:de885a6da962 304
Dance 0:de885a6da962 305 if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
Dance 0:de885a6da962 306 return EP_INVALID;
Dance 0:de885a6da962 307 }
Dance 0:de885a6da962 308
Dance 0:de885a6da962 309 // if read on a IN endpoint -> error
Dance 0:de885a6da962 310 if (IN_EP(endpoint)) {
Dance 0:de885a6da962 311 return EP_INVALID;
Dance 0:de885a6da962 312 }
Dance 0:de885a6da962 313
Dance 0:de885a6da962 314 idx = EP_BDT_IDX(log_endpoint, RX, 0);
Dance 0:de885a6da962 315 sz = bdt[idx].byte_count;
Dance 0:de885a6da962 316 not_iso = USB0->ENDPOINT[log_endpoint].ENDPT & USB_ENDPT_EPHSHK_MASK;
Dance 0:de885a6da962 317
Dance 0:de885a6da962 318 //for isochronous endpoint, we don't wait an interrupt
Dance 0:de885a6da962 319 if ((log_endpoint != 0) && not_iso && !(epComplete & EP(endpoint))) {
Dance 0:de885a6da962 320 return EP_PENDING;
Dance 0:de885a6da962 321 }
Dance 0:de885a6da962 322
Dance 0:de885a6da962 323 if ((log_endpoint == 0) && (TOK_PID(idx) == SETUP_TOKEN)) {
Dance 0:de885a6da962 324 setup = 1;
Dance 0:de885a6da962 325 }
Dance 0:de885a6da962 326
Dance 0:de885a6da962 327 // non iso endpoint
Dance 0:de885a6da962 328 if (not_iso) {
Dance 0:de885a6da962 329 ep_buf = endpoint_buffer[idx];
Dance 0:de885a6da962 330 } else {
Dance 0:de885a6da962 331 ep_buf = endpoint_buffer_iso[0];
Dance 0:de885a6da962 332 }
Dance 0:de885a6da962 333
Dance 0:de885a6da962 334 for (n = 0; n < sz; n++) {
Dance 0:de885a6da962 335 buffer[n] = ep_buf[n];
Dance 0:de885a6da962 336 }
Dance 0:de885a6da962 337
Dance 0:de885a6da962 338 if (((Data1 >> endpoint) & 1) == ((bdt[idx].info >> 6) & 1)) {
Dance 0:de885a6da962 339 if (setup && (buffer[6] == 0)) // if no setup data stage,
Dance 0:de885a6da962 340 Data1 &= ~1UL; // set DATA0
Dance 0:de885a6da962 341 else
Dance 0:de885a6da962 342 Data1 ^= (1 << endpoint);
Dance 0:de885a6da962 343 }
Dance 0:de885a6da962 344
Dance 0:de885a6da962 345 if (((Data1 >> endpoint) & 1)) {
Dance 0:de885a6da962 346 bdt[idx].info = BD_DTS_MASK | BD_DATA01_MASK | BD_OWN_MASK;
Dance 0:de885a6da962 347 }
Dance 0:de885a6da962 348 else {
Dance 0:de885a6da962 349 bdt[idx].info = BD_DTS_MASK | BD_OWN_MASK;
Dance 0:de885a6da962 350 }
Dance 0:de885a6da962 351
Dance 0:de885a6da962 352 USB0->CTL &= ~USB_CTL_TXSUSPENDTOKENBUSY_MASK;
Dance 0:de885a6da962 353 *bytesRead = sz;
Dance 0:de885a6da962 354
Dance 0:de885a6da962 355 epComplete &= ~EP(endpoint);
Dance 0:de885a6da962 356 return EP_COMPLETED;
Dance 0:de885a6da962 357 }
Dance 0:de885a6da962 358
Dance 0:de885a6da962 359 EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size) {
Dance 0:de885a6da962 360 uint32_t idx, n;
Dance 0:de885a6da962 361 uint8_t * ep_buf;
Dance 0:de885a6da962 362
Dance 0:de885a6da962 363 if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
Dance 0:de885a6da962 364 return EP_INVALID;
Dance 0:de885a6da962 365 }
Dance 0:de885a6da962 366
Dance 0:de885a6da962 367 // if write on a OUT endpoint -> error
Dance 0:de885a6da962 368 if (OUT_EP(endpoint)) {
Dance 0:de885a6da962 369 return EP_INVALID;
Dance 0:de885a6da962 370 }
Dance 0:de885a6da962 371
Dance 0:de885a6da962 372 idx = EP_BDT_IDX(PHY_TO_LOG(endpoint), TX, 0);
Dance 0:de885a6da962 373 bdt[idx].byte_count = size;
Dance 0:de885a6da962 374
Dance 0:de885a6da962 375
Dance 0:de885a6da962 376 // non iso endpoint
Dance 0:de885a6da962 377 if (USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT & USB_ENDPT_EPHSHK_MASK) {
Dance 0:de885a6da962 378 ep_buf = endpoint_buffer[idx];
Dance 0:de885a6da962 379 } else {
Dance 0:de885a6da962 380 ep_buf = endpoint_buffer_iso[2];
Dance 0:de885a6da962 381 }
Dance 0:de885a6da962 382
Dance 0:de885a6da962 383 for (n = 0; n < size; n++) {
Dance 0:de885a6da962 384 ep_buf[n] = data[n];
Dance 0:de885a6da962 385 }
Dance 0:de885a6da962 386
Dance 0:de885a6da962 387 if ((Data1 >> endpoint) & 1) {
Dance 0:de885a6da962 388 bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK;
Dance 0:de885a6da962 389 } else {
Dance 0:de885a6da962 390 bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK | BD_DATA01_MASK;
Dance 0:de885a6da962 391 }
Dance 0:de885a6da962 392
Dance 0:de885a6da962 393 Data1 ^= (1 << endpoint);
Dance 0:de885a6da962 394
Dance 0:de885a6da962 395 return EP_PENDING;
Dance 0:de885a6da962 396 }
Dance 0:de885a6da962 397
Dance 0:de885a6da962 398 EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint) {
Dance 0:de885a6da962 399 if (epComplete & EP(endpoint)) {
Dance 0:de885a6da962 400 epComplete &= ~EP(endpoint);
Dance 0:de885a6da962 401 return EP_COMPLETED;
Dance 0:de885a6da962 402 }
Dance 0:de885a6da962 403
Dance 0:de885a6da962 404 return EP_PENDING;
Dance 0:de885a6da962 405 }
Dance 0:de885a6da962 406
Dance 0:de885a6da962 407 void USBHAL::stallEndpoint(uint8_t endpoint) {
Dance 0:de885a6da962 408 USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT |= USB_ENDPT_EPSTALL_MASK;
Dance 0:de885a6da962 409 }
Dance 0:de885a6da962 410
Dance 0:de885a6da962 411 void USBHAL::unstallEndpoint(uint8_t endpoint) {
Dance 0:de885a6da962 412 USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT &= ~USB_ENDPT_EPSTALL_MASK;
Dance 0:de885a6da962 413 }
Dance 0:de885a6da962 414
Dance 0:de885a6da962 415 bool USBHAL::getEndpointStallState(uint8_t endpoint) {
Dance 0:de885a6da962 416 uint8_t stall = (USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT & USB_ENDPT_EPSTALL_MASK);
Dance 0:de885a6da962 417 return (stall) ? true : false;
Dance 0:de885a6da962 418 }
Dance 0:de885a6da962 419
Dance 0:de885a6da962 420 void USBHAL::remoteWakeup(void) {
Dance 0:de885a6da962 421 // [TODO]
Dance 0:de885a6da962 422 }
Dance 0:de885a6da962 423
Dance 0:de885a6da962 424
Dance 0:de885a6da962 425 void USBHAL::_usbisr(void) {
Dance 0:de885a6da962 426 instance->usbisr();
Dance 0:de885a6da962 427 }
Dance 0:de885a6da962 428
Dance 0:de885a6da962 429
Dance 0:de885a6da962 430 void USBHAL::usbisr(void) {
Dance 0:de885a6da962 431 uint8_t i;
Dance 0:de885a6da962 432 uint8_t istat = USB0->ISTAT;
Dance 0:de885a6da962 433
Dance 0:de885a6da962 434 // reset interrupt
Dance 0:de885a6da962 435 if (istat & USB_ISTAT_USBRST_MASK) {
Dance 0:de885a6da962 436 // disable all endpt
Dance 0:de885a6da962 437 for(i = 0; i < 16; i++) {
Dance 0:de885a6da962 438 USB0->ENDPOINT[i].ENDPT = 0x00;
Dance 0:de885a6da962 439 }
Dance 0:de885a6da962 440
Dance 0:de885a6da962 441 // enable control endpoint
Dance 0:de885a6da962 442 realiseEndpoint(EP0OUT, MAX_PACKET_SIZE_EP0, 0);
Dance 0:de885a6da962 443 realiseEndpoint(EP0IN, MAX_PACKET_SIZE_EP0, 0);
Dance 0:de885a6da962 444
Dance 0:de885a6da962 445 Data1 = 0x55555555;
Dance 0:de885a6da962 446 USB0->CTL |= USB_CTL_ODDRST_MASK;
Dance 0:de885a6da962 447
Dance 0:de885a6da962 448 USB0->ISTAT = 0xFF; // clear all interrupt status flags
Dance 0:de885a6da962 449 USB0->ERRSTAT = 0xFF; // clear all error flags
Dance 0:de885a6da962 450 USB0->ERREN = 0xFF; // enable error interrupt sources
Dance 0:de885a6da962 451 USB0->ADDR = 0x00; // set default address
Dance 0:de885a6da962 452
Dance 0:de885a6da962 453 return;
Dance 0:de885a6da962 454 }
Dance 0:de885a6da962 455
Dance 0:de885a6da962 456 // resume interrupt
Dance 0:de885a6da962 457 if (istat & USB_ISTAT_RESUME_MASK) {
Dance 0:de885a6da962 458 USB0->ISTAT = USB_ISTAT_RESUME_MASK;
Dance 0:de885a6da962 459 }
Dance 0:de885a6da962 460
Dance 0:de885a6da962 461 // SOF interrupt
Dance 0:de885a6da962 462 if (istat & USB_ISTAT_SOFTOK_MASK) {
Dance 0:de885a6da962 463 USB0->ISTAT = USB_ISTAT_SOFTOK_MASK;
Dance 0:de885a6da962 464 // SOF event, read frame number
Dance 0:de885a6da962 465 SOF(frameNumber());
Dance 0:de885a6da962 466 }
Dance 0:de885a6da962 467
Dance 0:de885a6da962 468 // stall interrupt
Dance 0:de885a6da962 469 if (istat & 1<<7) {
Dance 0:de885a6da962 470 if (USB0->ENDPOINT[0].ENDPT & USB_ENDPT_EPSTALL_MASK)
Dance 0:de885a6da962 471 USB0->ENDPOINT[0].ENDPT &= ~USB_ENDPT_EPSTALL_MASK;
Dance 0:de885a6da962 472 USB0->ISTAT |= USB_ISTAT_STALL_MASK;
Dance 0:de885a6da962 473 }
Dance 0:de885a6da962 474
Dance 0:de885a6da962 475 // token interrupt
Dance 0:de885a6da962 476 if (istat & 1<<3) {
Dance 0:de885a6da962 477 uint32_t num = (USB0->STAT >> 4) & 0x0F;
Dance 0:de885a6da962 478 uint32_t dir = (USB0->STAT >> 3) & 0x01;
Dance 0:de885a6da962 479 uint32_t ev_odd = (USB0->STAT >> 2) & 0x01;
Dance 0:de885a6da962 480
Dance 0:de885a6da962 481 // setup packet
Dance 0:de885a6da962 482 if ((num == 0) && (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == SETUP_TOKEN)) {
Dance 0:de885a6da962 483 Data1 &= ~0x02;
Dance 0:de885a6da962 484 bdt[EP_BDT_IDX(0, TX, EVEN)].info &= ~BD_OWN_MASK;
Dance 0:de885a6da962 485 bdt[EP_BDT_IDX(0, TX, ODD)].info &= ~BD_OWN_MASK;
Dance 0:de885a6da962 486
Dance 0:de885a6da962 487 // EP0 SETUP event (SETUP data received)
Dance 0:de885a6da962 488 EP0setupCallback();
Dance 0:de885a6da962 489
Dance 0:de885a6da962 490 } else {
Dance 0:de885a6da962 491 // OUT packet
Dance 0:de885a6da962 492 if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == OUT_TOKEN) {
Dance 0:de885a6da962 493 if (num == 0)
Dance 0:de885a6da962 494 EP0out();
Dance 0:de885a6da962 495 else {
Dance 0:de885a6da962 496 epComplete |= (1 << EP(num));
Dance 0:de885a6da962 497 if ((instance->*(epCallback[EP(num) - 2]))()) {
Dance 0:de885a6da962 498 epComplete &= ~(1 << EP(num));
Dance 0:de885a6da962 499 }
Dance 0:de885a6da962 500 }
Dance 0:de885a6da962 501 }
Dance 0:de885a6da962 502
Dance 0:de885a6da962 503 // IN packet
Dance 0:de885a6da962 504 if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == IN_TOKEN) {
Dance 0:de885a6da962 505 if (num == 0) {
Dance 0:de885a6da962 506 EP0in();
Dance 0:de885a6da962 507 if (set_addr == 1) {
Dance 0:de885a6da962 508 USB0->ADDR = addr & 0x7F;
Dance 0:de885a6da962 509 set_addr = 0;
Dance 0:de885a6da962 510 }
Dance 0:de885a6da962 511 }
Dance 0:de885a6da962 512 else {
Dance 0:de885a6da962 513 epComplete |= (1 << (EP(num) + 1));
Dance 0:de885a6da962 514 if ((instance->*(epCallback[EP(num) + 1 - 2]))()) {
Dance 0:de885a6da962 515 epComplete &= ~(1 << (EP(num) + 1));
Dance 0:de885a6da962 516 }
Dance 0:de885a6da962 517 }
Dance 0:de885a6da962 518 }
Dance 0:de885a6da962 519 }
Dance 0:de885a6da962 520
Dance 0:de885a6da962 521 USB0->ISTAT = USB_ISTAT_TOKDNE_MASK;
Dance 0:de885a6da962 522 }
Dance 0:de885a6da962 523
Dance 0:de885a6da962 524 // sleep interrupt
Dance 0:de885a6da962 525 if (istat & 1<<4) {
Dance 0:de885a6da962 526 USB0->ISTAT |= USB_ISTAT_SLEEP_MASK;
Dance 0:de885a6da962 527 }
Dance 0:de885a6da962 528
Dance 0:de885a6da962 529 // error interrupt
Dance 0:de885a6da962 530 if (istat & USB_ISTAT_ERROR_MASK) {
Dance 0:de885a6da962 531 USB0->ERRSTAT = 0xFF;
Dance 0:de885a6da962 532 USB0->ISTAT |= USB_ISTAT_ERROR_MASK;
Dance 0:de885a6da962 533 }
Dance 0:de885a6da962 534 }
Dance 0:de885a6da962 535
Dance 0:de885a6da962 536
Dance 0:de885a6da962 537 #endif