Ales Povalac / USBDeviceLite

USB device stack, fixes for USBSerial, lightweight without malloc (RTOS ready)

Dependents:   EMIRv2

Fork of USBDevice by Ales Povalac

USBDevice/USBHAL_KL25Z.cpp@26:419386cf801c, 2014-07-30 (annotated)

Committer:
alpov
Date:
Wed Jul 30 19:01:27 2014 +0000
Revision:
26:419386cf801c
Parent:
25:f0299e22d4c0 
fixed USB3 support according to https://mbed.org/questions/2599/Is-USBSerial-giving-problems-on-new-Hasw/#answer4609

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 8:335f2506f422 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
samux 8:335f2506f422 2 *
samux 8:335f2506f422 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
samux 8:335f2506f422 4 * and associated documentation files (the "Software"), to deal in the Software without
samux 8:335f2506f422 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
samux 8:335f2506f422 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
samux 8:335f2506f422 7 * Software is furnished to do so, subject to the following conditions:
samux 8:335f2506f422 8 *
samux 8:335f2506f422 9 * The above copyright notice and this permission notice shall be included in all copies or
samux 8:335f2506f422 10 * substantial portions of the Software.
samux 8:335f2506f422 11 *
samux 8:335f2506f422 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
samux 8:335f2506f422 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
samux 8:335f2506f422 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
samux 8:335f2506f422 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 8:335f2506f422 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
samux 8:335f2506f422 17 */
samux 8:335f2506f422 18
mbed_official 22:5b7d31d9d3f3 19 #if defined(TARGET_KL25Z) | defined(TARGET_KL46Z) | defined(TARGET_K20D5M) | defined(TARGET_K64F)
samux 8:335f2506f422 20
samux 8:335f2506f422 21 #include "USBHAL.h"
samux 8:335f2506f422 22
samux 8:335f2506f422 23 USBHAL * USBHAL::instance;
samux 8:335f2506f422 24
samux 8:335f2506f422 25 static volatile int epComplete = 0;
samux 8:335f2506f422 26
samux 8:335f2506f422 27 // Convert physical endpoint number to register bit
samux 8:335f2506f422 28 #define EP(endpoint) (1<<(endpoint))
samux 8:335f2506f422 29
samux 8:335f2506f422 30 // Convert physical to logical
samux 8:335f2506f422 31 #define PHY_TO_LOG(endpoint) ((endpoint)>>1)
samux 8:335f2506f422 32
samux 8:335f2506f422 33 // Get endpoint direction
samux 8:335f2506f422 34 #define IN_EP(endpoint) ((endpoint) & 1U ? true : false)
samux 8:335f2506f422 35 #define OUT_EP(endpoint) ((endpoint) & 1U ? false : true)
samux 8:335f2506f422 36
samux 8:335f2506f422 37 #define BD_OWN_MASK (1<<7)
samux 8:335f2506f422 38 #define BD_DATA01_MASK (1<<6)
samux 8:335f2506f422 39 #define BD_KEEP_MASK (1<<5)
samux 8:335f2506f422 40 #define BD_NINC_MASK (1<<4)
samux 8:335f2506f422 41 #define BD_DTS_MASK (1<<3)
samux 8:335f2506f422 42 #define BD_STALL_MASK (1<<2)
samux 8:335f2506f422 43
samux 8:335f2506f422 44 #define TX 1
samux 8:335f2506f422 45 #define RX 0
samux 8:335f2506f422 46 #define ODD 0
samux 8:335f2506f422 47 #define EVEN 1
samux 8:335f2506f422 48 // this macro waits a physical endpoint number
samux 8:335f2506f422 49 #define EP_BDT_IDX(ep, dir, odd) (((ep * 4) + (2 * dir) + (1 * odd)))
samux 8:335f2506f422 50
samux 8:335f2506f422 51 #define SETUP_TOKEN 0x0D
samux 8:335f2506f422 52 #define IN_TOKEN 0x09
samux 8:335f2506f422 53 #define OUT_TOKEN 0x01
samux 8:335f2506f422 54 #define TOK_PID(idx) ((bdt[idx].info >> 2) & 0x0F)
samux 8:335f2506f422 55
samux 8:335f2506f422 56 // for each endpt: 8 bytes
samux 8:335f2506f422 57 typedef struct BDT {
samux 8:335f2506f422 58 uint8_t info; // BD[0:7]
samux 8:335f2506f422 59 uint8_t dummy; // RSVD: BD[8:15]
samux 8:335f2506f422 60 uint16_t byte_count; // BD[16:32]
samux 8:335f2506f422 61 uint32_t address; // Addr
mbed_official 20:d38b72fed893 62 } BDT;
samux 8:335f2506f422 63
samux 8:335f2506f422 64
samux 8:335f2506f422 65 // there are:
samux 8:335f2506f422 66 // * 16 bidirectionnal endpt -> 32 physical endpt
samux 8:335f2506f422 67 // * as there are ODD and EVEN buffer -> 32*2 bdt
samux 8:335f2506f422 68 __attribute__((__aligned__(512))) BDT bdt[NUMBER_OF_PHYSICAL_ENDPOINTS * 2];
alpov 25:f0299e22d4c0 69 uint8_t endpoint_buffer[NUMBER_OF_PHYSICAL_ENDPOINTS * 2][64];
samux 8:335f2506f422 70
samux 8:335f2506f422 71 static uint8_t set_addr = 0;
samux 8:335f2506f422 72 static uint8_t addr = 0;
samux 8:335f2506f422 73
samux 8:335f2506f422 74 static uint32_t Data1 = 0x55555555;
samux 8:335f2506f422 75
samux 8:335f2506f422 76 static uint32_t frameNumber() {
bogdanm 13:16731886c049 77 return((USB0->FRMNUML | (USB0->FRMNUMH << 8)) & 0x07FF);
samux 8:335f2506f422 78 }
samux 8:335f2506f422 79
samux 8:335f2506f422 80 uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer) {
samux 8:335f2506f422 81 return 0;
samux 8:335f2506f422 82 }
samux 8:335f2506f422 83
mbed_official 20:d38b72fed893 84 USBHAL::USBHAL(void) {
samux 8:335f2506f422 85 // Disable IRQ
samux 8:335f2506f422 86 NVIC_DisableIRQ(USB0_IRQn);
mbed_official 20:d38b72fed893 87
mbed_official 22:5b7d31d9d3f3 88 #if defined(TARGET_K64F)
mbed_official 22:5b7d31d9d3f3 89 MPU->CESR=0;
mbed_official 22:5b7d31d9d3f3 90 #endif
samux 8:335f2506f422 91 // fill in callback array
samux 8:335f2506f422 92 epCallback[0] = &USBHAL::EP1_OUT_callback;
samux 8:335f2506f422 93 epCallback[1] = &USBHAL::EP1_IN_callback;
samux 8:335f2506f422 94 epCallback[2] = &USBHAL::EP2_OUT_callback;
samux 8:335f2506f422 95 epCallback[3] = &USBHAL::EP2_IN_callback;
samux 8:335f2506f422 96 epCallback[4] = &USBHAL::EP3_OUT_callback;
samux 8:335f2506f422 97 epCallback[5] = &USBHAL::EP3_IN_callback;
samux 8:335f2506f422 98 epCallback[6] = &USBHAL::EP4_OUT_callback;
samux 8:335f2506f422 99 epCallback[7] = &USBHAL::EP4_IN_callback;
samux 8:335f2506f422 100 epCallback[8] = &USBHAL::EP5_OUT_callback;
samux 8:335f2506f422 101 epCallback[9] = &USBHAL::EP5_IN_callback;
samux 8:335f2506f422 102 epCallback[10] = &USBHAL::EP6_OUT_callback;
samux 8:335f2506f422 103 epCallback[11] = &USBHAL::EP6_IN_callback;
samux 8:335f2506f422 104 epCallback[12] = &USBHAL::EP7_OUT_callback;
samux 8:335f2506f422 105 epCallback[13] = &USBHAL::EP7_IN_callback;
samux 8:335f2506f422 106 epCallback[14] = &USBHAL::EP8_OUT_callback;
samux 8:335f2506f422 107 epCallback[15] = &USBHAL::EP8_IN_callback;
samux 8:335f2506f422 108 epCallback[16] = &USBHAL::EP9_OUT_callback;
samux 8:335f2506f422 109 epCallback[17] = &USBHAL::EP9_IN_callback;
samux 8:335f2506f422 110 epCallback[18] = &USBHAL::EP10_OUT_callback;
samux 8:335f2506f422 111 epCallback[19] = &USBHAL::EP10_IN_callback;
samux 8:335f2506f422 112 epCallback[20] = &USBHAL::EP11_OUT_callback;
samux 8:335f2506f422 113 epCallback[21] = &USBHAL::EP11_IN_callback;
samux 8:335f2506f422 114 epCallback[22] = &USBHAL::EP12_OUT_callback;
samux 8:335f2506f422 115 epCallback[23] = &USBHAL::EP12_IN_callback;
samux 8:335f2506f422 116 epCallback[24] = &USBHAL::EP13_OUT_callback;
samux 8:335f2506f422 117 epCallback[25] = &USBHAL::EP13_IN_callback;
samux 8:335f2506f422 118 epCallback[26] = &USBHAL::EP14_OUT_callback;
samux 8:335f2506f422 119 epCallback[27] = &USBHAL::EP14_IN_callback;
samux 8:335f2506f422 120 epCallback[28] = &USBHAL::EP15_OUT_callback;
samux 8:335f2506f422 121 epCallback[29] = &USBHAL::EP15_IN_callback;
mbed_official 20:d38b72fed893 122
mbed_official 20:d38b72fed893 123
samux 8:335f2506f422 124 // choose usb src as PLL
samux 8:335f2506f422 125 SIM->SOPT2 |= (SIM_SOPT2_USBSRC_MASK | SIM_SOPT2_PLLFLLSEL_MASK);
mbed_official 20:d38b72fed893 126
samux 8:335f2506f422 127 // enable OTG clock
samux 8:335f2506f422 128 SIM->SCGC4 |= SIM_SCGC4_USBOTG_MASK;
samux 8:335f2506f422 129
samux 8:335f2506f422 130 // Attach IRQ
samux 8:335f2506f422 131 instance = this;
samux 8:335f2506f422 132 NVIC_SetVector(USB0_IRQn, (uint32_t)&_usbisr);
samux 8:335f2506f422 133 NVIC_EnableIRQ(USB0_IRQn);
mbed_official 20:d38b72fed893 134
samux 8:335f2506f422 135 // USB Module Configuration
samux 8:335f2506f422 136 // Reset USB Module
samux 8:335f2506f422 137 USB0->USBTRC0 |= USB_USBTRC0_USBRESET_MASK;
samux 8:335f2506f422 138 while(USB0->USBTRC0 & USB_USBTRC0_USBRESET_MASK);
mbed_official 20:d38b72fed893 139
samux 8:335f2506f422 140 // Set BDT Base Register
mbed_official 22:5b7d31d9d3f3 141 USB0->BDTPAGE1 = (uint8_t)((uint32_t)bdt>>8);
mbed_official 22:5b7d31d9d3f3 142 USB0->BDTPAGE2 = (uint8_t)((uint32_t)bdt>>16);
mbed_official 22:5b7d31d9d3f3 143 USB0->BDTPAGE3 = (uint8_t)((uint32_t)bdt>>24);
samux 8:335f2506f422 144
samux 8:335f2506f422 145 // Clear interrupt flag
samux 8:335f2506f422 146 USB0->ISTAT = 0xff;
samux 8:335f2506f422 147
samux 8:335f2506f422 148 // USB Interrupt Enablers
mbed_official 20:d38b72fed893 149 USB0->INTEN |= USB_INTEN_TOKDNEEN_MASK |
mbed_official 20:d38b72fed893 150 USB_INTEN_SOFTOKEN_MASK |
samux 8:335f2506f422 151 USB_INTEN_ERROREN_MASK |
samux 8:335f2506f422 152 USB_INTEN_USBRSTEN_MASK;
mbed_official 20:d38b72fed893 153
mbed_official 20:d38b72fed893 154 // Disable weak pull downs
mbed_official 20:d38b72fed893 155 USB0->USBCTRL &= ~(USB_USBCTRL_PDE_MASK | USB_USBCTRL_SUSP_MASK);
mbed_official 20:d38b72fed893 156
samux 8:335f2506f422 157 USB0->USBTRC0 |= 0x40;
samux 8:335f2506f422 158 }
samux 8:335f2506f422 159
samux 8:335f2506f422 160 USBHAL::~USBHAL(void) { }
samux 8:335f2506f422 161
samux 8:335f2506f422 162 void USBHAL::connect(void) {
samux 8:335f2506f422 163 // enable USB
samux 8:335f2506f422 164 USB0->CTL |= USB_CTL_USBENSOFEN_MASK;
samux 8:335f2506f422 165 // Pull up enable
samux 8:335f2506f422 166 USB0->CONTROL |= USB_CONTROL_DPPULLUPNONOTG_MASK;
samux 8:335f2506f422 167 }
samux 8:335f2506f422 168
samux 8:335f2506f422 169 void USBHAL::disconnect(void) {
samux 8:335f2506f422 170 // disable USB
samux 8:335f2506f422 171 USB0->CTL &= ~USB_CTL_USBENSOFEN_MASK;
samux 8:335f2506f422 172 // Pull up disable
samux 8:335f2506f422 173 USB0->CONTROL &= ~USB_CONTROL_DPPULLUPNONOTG_MASK;
samux 8:335f2506f422 174 }
samux 8:335f2506f422 175
samux 8:335f2506f422 176 void USBHAL::configureDevice(void) {
samux 8:335f2506f422 177 // not needed
samux 8:335f2506f422 178 }
samux 8:335f2506f422 179
samux 8:335f2506f422 180 void USBHAL::unconfigureDevice(void) {
samux 8:335f2506f422 181 // not needed
samux 8:335f2506f422 182 }
samux 8:335f2506f422 183
samux 8:335f2506f422 184 void USBHAL::setAddress(uint8_t address) {
samux 8:335f2506f422 185 // we don't set the address now otherwise the usb controller does not ack
samux 8:335f2506f422 186 // we set a flag instead
samux 8:335f2506f422 187 // see usbisr when an IN token is received
samux 8:335f2506f422 188 set_addr = 1;
samux 8:335f2506f422 189 addr = address;
samux 8:335f2506f422 190 }
samux 8:335f2506f422 191
samux 8:335f2506f422 192 bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t flags) {
samux 8:335f2506f422 193 uint32_t handshake_flag = 0;
samux 8:335f2506f422 194 uint8_t * buf;
samux 8:335f2506f422 195
samux 8:335f2506f422 196 if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
samux 8:335f2506f422 197 return false;
samux 8:335f2506f422 198 }
samux 8:335f2506f422 199
samux 8:335f2506f422 200 uint32_t log_endpoint = PHY_TO_LOG(endpoint);
samux 8:335f2506f422 201
samux 8:335f2506f422 202 if ((flags & ISOCHRONOUS) == 0) {
samux 8:335f2506f422 203 handshake_flag = USB_ENDPT_EPHSHK_MASK;
alpov 24:96a0946caef5 204 if (IN_EP(endpoint))
alpov 24:96a0946caef5 205 buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, TX, ODD )][0];
alpov 24:96a0946caef5 206 else
alpov 24:96a0946caef5 207 buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, RX, ODD )][0];
samux 8:335f2506f422 208 }
samux 8:335f2506f422 209
samux 8:335f2506f422 210 // IN endpt -> device to host (TX)
samux 8:335f2506f422 211 if (IN_EP(endpoint)) {
samux 8:335f2506f422 212 USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag | // ep handshaking (not if iso endpoint)
samux 8:335f2506f422 213 USB_ENDPT_EPTXEN_MASK; // en TX (IN) tran
samux 8:335f2506f422 214 bdt[EP_BDT_IDX(log_endpoint, TX, ODD )].address = (uint32_t) buf;
samux 8:335f2506f422 215 bdt[EP_BDT_IDX(log_endpoint, TX, EVEN)].address = 0;
samux 8:335f2506f422 216 }
samux 8:335f2506f422 217 // OUT endpt -> host to device (RX)
samux 8:335f2506f422 218 else {
samux 8:335f2506f422 219 USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag | // ep handshaking (not if iso endpoint)
samux 8:335f2506f422 220 USB_ENDPT_EPRXEN_MASK; // en RX (OUT) tran.
samux 8:335f2506f422 221 bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].byte_count = maxPacket;
samux 8:335f2506f422 222 bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].address = (uint32_t) buf;
samux 8:335f2506f422 223 bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].info = BD_OWN_MASK | BD_DTS_MASK;
samux 8:335f2506f422 224 bdt[EP_BDT_IDX(log_endpoint, RX, EVEN)].info = 0;
samux 8:335f2506f422 225 }
samux 8:335f2506f422 226
samux 8:335f2506f422 227 Data1 |= (1 << endpoint);
samux 8:335f2506f422 228
samux 8:335f2506f422 229 return true;
samux 8:335f2506f422 230 }
samux 8:335f2506f422 231
samux 8:335f2506f422 232 // read setup packet
samux 8:335f2506f422 233 void USBHAL::EP0setup(uint8_t *buffer) {
samux 8:335f2506f422 234 uint32_t sz;
samux 8:335f2506f422 235 endpointReadResult(EP0OUT, buffer, &sz);
samux 8:335f2506f422 236 }
samux 8:335f2506f422 237
samux 8:335f2506f422 238 void USBHAL::EP0readStage(void) {
samux 8:335f2506f422 239 Data1 &= ~1UL; // set DATA0
samux 8:335f2506f422 240 bdt[0].info = (BD_DTS_MASK | BD_OWN_MASK);
samux 8:335f2506f422 241 }
samux 8:335f2506f422 242
samux 8:335f2506f422 243 void USBHAL::EP0read(void) {
samux 8:335f2506f422 244 uint32_t idx = EP_BDT_IDX(PHY_TO_LOG(EP0OUT), RX, 0);
samux 8:335f2506f422 245 bdt[idx].byte_count = MAX_PACKET_SIZE_EP0;
samux 8:335f2506f422 246 }
samux 8:335f2506f422 247
samux 8:335f2506f422 248 uint32_t USBHAL::EP0getReadResult(uint8_t *buffer) {
samux 8:335f2506f422 249 uint32_t sz;
samux 8:335f2506f422 250 endpointReadResult(EP0OUT, buffer, &sz);
samux 8:335f2506f422 251 return sz;
samux 8:335f2506f422 252 }
samux 8:335f2506f422 253
samux 8:335f2506f422 254 void USBHAL::EP0write(uint8_t *buffer, uint32_t size) {
samux 8:335f2506f422 255 endpointWrite(EP0IN, buffer, size);
samux 8:335f2506f422 256 }
samux 8:335f2506f422 257
samux 8:335f2506f422 258 void USBHAL::EP0getWriteResult(void) {
samux 8:335f2506f422 259 }
samux 8:335f2506f422 260
samux 8:335f2506f422 261 void USBHAL::EP0stall(void) {
samux 8:335f2506f422 262 stallEndpoint(EP0OUT);
samux 8:335f2506f422 263 }
samux 8:335f2506f422 264
samux 8:335f2506f422 265 EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize) {
samux 8:335f2506f422 266 endpoint = PHY_TO_LOG(endpoint);
samux 8:335f2506f422 267 uint32_t idx = EP_BDT_IDX(endpoint, RX, 0);
samux 8:335f2506f422 268 bdt[idx].byte_count = maximumSize;
samux 8:335f2506f422 269 return EP_PENDING;
samux 8:335f2506f422 270 }
samux 8:335f2506f422 271
samux 8:335f2506f422 272 EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t * buffer, uint32_t *bytesRead) {
samux 8:335f2506f422 273 uint32_t n, sz, idx, setup = 0;
samux 8:335f2506f422 274 uint8_t * ep_buf;
mbed_official 20:d38b72fed893 275
samux 8:335f2506f422 276 uint32_t log_endpoint = PHY_TO_LOG(endpoint);
mbed_official 20:d38b72fed893 277
samux 8:335f2506f422 278 if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
samux 8:335f2506f422 279 return EP_INVALID;
samux 8:335f2506f422 280 }
samux 8:335f2506f422 281
samux 8:335f2506f422 282 // if read on a IN endpoint -> error
samux 8:335f2506f422 283 if (IN_EP(endpoint)) {
samux 8:335f2506f422 284 return EP_INVALID;
samux 8:335f2506f422 285 }
samux 8:335f2506f422 286
samux 8:335f2506f422 287 idx = EP_BDT_IDX(log_endpoint, RX, 0);
samux 8:335f2506f422 288 sz = bdt[idx].byte_count;
samux 8:335f2506f422 289
samux 8:335f2506f422 290 //for isochronous endpoint, we don't wait an interrupt
alpov 24:96a0946caef5 291 if ((log_endpoint != 0) && !(epComplete & EP(endpoint))) {
samux 8:335f2506f422 292 return EP_PENDING;
samux 8:335f2506f422 293 }
samux 8:335f2506f422 294
samux 8:335f2506f422 295 if ((log_endpoint == 0) && (TOK_PID(idx) == SETUP_TOKEN)) {
samux 8:335f2506f422 296 setup = 1;
samux 8:335f2506f422 297 }
samux 8:335f2506f422 298
samux 8:335f2506f422 299 // non iso endpoint
alpov 24:96a0946caef5 300 ep_buf = endpoint_buffer[idx];
samux 8:335f2506f422 301
samux 8:335f2506f422 302 for (n = 0; n < sz; n++) {
samux 8:335f2506f422 303 buffer[n] = ep_buf[n];
samux 8:335f2506f422 304 }
samux 8:335f2506f422 305
samux 8:335f2506f422 306 if (((Data1 >> endpoint) & 1) == ((bdt[idx].info >> 6) & 1)) {
samux 8:335f2506f422 307 if (setup && (buffer[6] == 0)) // if no setup data stage,
samux 8:335f2506f422 308 Data1 &= ~1UL; // set DATA0
mbed_official 20:d38b72fed893 309 else
samux 8:335f2506f422 310 Data1 ^= (1 << endpoint);
samux 8:335f2506f422 311 }
samux 8:335f2506f422 312
samux 8:335f2506f422 313 if (((Data1 >> endpoint) & 1)) {
samux 8:335f2506f422 314 bdt[idx].info = BD_DTS_MASK | BD_DATA01_MASK | BD_OWN_MASK;
samux 8:335f2506f422 315 }
samux 8:335f2506f422 316 else {
samux 8:335f2506f422 317 bdt[idx].info = BD_DTS_MASK | BD_OWN_MASK;
samux 8:335f2506f422 318 }
mbed_official 20:d38b72fed893 319
samux 8:335f2506f422 320 USB0->CTL &= ~USB_CTL_TXSUSPENDTOKENBUSY_MASK;
samux 8:335f2506f422 321 *bytesRead = sz;
samux 8:335f2506f422 322
samux 8:335f2506f422 323 epComplete &= ~EP(endpoint);
samux 8:335f2506f422 324 return EP_COMPLETED;
samux 8:335f2506f422 325 }
samux 8:335f2506f422 326
samux 8:335f2506f422 327 EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size) {
samux 8:335f2506f422 328 uint32_t idx, n;
samux 8:335f2506f422 329 uint8_t * ep_buf;
samux 8:335f2506f422 330
samux 8:335f2506f422 331 if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
samux 8:335f2506f422 332 return EP_INVALID;
samux 8:335f2506f422 333 }
samux 8:335f2506f422 334
samux 8:335f2506f422 335 // if write on a OUT endpoint -> error
samux 8:335f2506f422 336 if (OUT_EP(endpoint)) {
samux 8:335f2506f422 337 return EP_INVALID;
samux 8:335f2506f422 338 }
samux 8:335f2506f422 339
samux 8:335f2506f422 340 idx = EP_BDT_IDX(PHY_TO_LOG(endpoint), TX, 0);
samux 8:335f2506f422 341 bdt[idx].byte_count = size;
mbed_official 20:d38b72fed893 342
mbed_official 20:d38b72fed893 343
samux 8:335f2506f422 344 // non iso endpoint
alpov 24:96a0946caef5 345 ep_buf = endpoint_buffer[idx];
mbed_official 20:d38b72fed893 346
samux 8:335f2506f422 347 for (n = 0; n < size; n++) {
samux 8:335f2506f422 348 ep_buf[n] = data[n];
samux 8:335f2506f422 349 }
mbed_official 20:d38b72fed893 350
samux 8:335f2506f422 351 if ((Data1 >> endpoint) & 1) {
samux 8:335f2506f422 352 bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK;
samux 8:335f2506f422 353 } else {
samux 8:335f2506f422 354 bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK | BD_DATA01_MASK;
samux 8:335f2506f422 355 }
mbed_official 20:d38b72fed893 356
samux 8:335f2506f422 357 Data1 ^= (1 << endpoint);
mbed_official 20:d38b72fed893 358
samux 8:335f2506f422 359 return EP_PENDING;
samux 8:335f2506f422 360 }
samux 8:335f2506f422 361
samux 8:335f2506f422 362 EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint) {
samux 8:335f2506f422 363 if (epComplete & EP(endpoint)) {
samux 8:335f2506f422 364 epComplete &= ~EP(endpoint);
samux 8:335f2506f422 365 return EP_COMPLETED;
samux 8:335f2506f422 366 }
samux 8:335f2506f422 367
samux 8:335f2506f422 368 return EP_PENDING;
samux 8:335f2506f422 369 }
samux 8:335f2506f422 370
samux 8:335f2506f422 371 void USBHAL::stallEndpoint(uint8_t endpoint) {
samux 8:335f2506f422 372 USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT |= USB_ENDPT_EPSTALL_MASK;
samux 8:335f2506f422 373 }
samux 8:335f2506f422 374
samux 8:335f2506f422 375 void USBHAL::unstallEndpoint(uint8_t endpoint) {
samux 8:335f2506f422 376 USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT &= ~USB_ENDPT_EPSTALL_MASK;
samux 8:335f2506f422 377 }
samux 8:335f2506f422 378
samux 8:335f2506f422 379 bool USBHAL::getEndpointStallState(uint8_t endpoint) {
samux 8:335f2506f422 380 uint8_t stall = (USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT & USB_ENDPT_EPSTALL_MASK);
samux 8:335f2506f422 381 return (stall) ? true : false;
samux 8:335f2506f422 382 }
samux 8:335f2506f422 383
samux 8:335f2506f422 384 void USBHAL::remoteWakeup(void) {
samux 8:335f2506f422 385 // [TODO]
samux 8:335f2506f422 386 }
samux 8:335f2506f422 387
samux 8:335f2506f422 388
samux 8:335f2506f422 389 void USBHAL::_usbisr(void) {
samux 8:335f2506f422 390 instance->usbisr();
samux 8:335f2506f422 391 }
samux 8:335f2506f422 392
samux 8:335f2506f422 393
samux 8:335f2506f422 394 void USBHAL::usbisr(void) {
samux 8:335f2506f422 395 uint8_t i;
samux 8:335f2506f422 396 uint8_t istat = USB0->ISTAT;
samux 8:335f2506f422 397
samux 8:335f2506f422 398 // reset interrupt
mbed_official 20:d38b72fed893 399 if (istat & USB_ISTAT_USBRST_MASK) {
samux 8:335f2506f422 400 // disable all endpt
samux 8:335f2506f422 401 for(i = 0; i < 16; i++) {
samux 8:335f2506f422 402 USB0->ENDPOINT[i].ENDPT = 0x00;
samux 8:335f2506f422 403 }
samux 8:335f2506f422 404
samux 8:335f2506f422 405 // enable control endpoint
samux 8:335f2506f422 406 realiseEndpoint(EP0OUT, MAX_PACKET_SIZE_EP0, 0);
samux 8:335f2506f422 407 realiseEndpoint(EP0IN, MAX_PACKET_SIZE_EP0, 0);
samux 8:335f2506f422 408
samux 8:335f2506f422 409 Data1 = 0x55555555;
samux 8:335f2506f422 410 USB0->CTL |= USB_CTL_ODDRST_MASK;
samux 8:335f2506f422 411
samux 8:335f2506f422 412 USB0->ISTAT = 0xFF; // clear all interrupt status flags
samux 8:335f2506f422 413 USB0->ERRSTAT = 0xFF; // clear all error flags
samux 8:335f2506f422 414 USB0->ERREN = 0xFF; // enable error interrupt sources
samux 8:335f2506f422 415 USB0->ADDR = 0x00; // set default address
samux 8:335f2506f422 416
alpov 23:c7639faed2eb 417 // reset bus for USBDevice layer
alpov 23:c7639faed2eb 418 busReset();
alpov 23:c7639faed2eb 419
samux 8:335f2506f422 420 return;
samux 8:335f2506f422 421 }
samux 8:335f2506f422 422
samux 8:335f2506f422 423 // resume interrupt
samux 8:335f2506f422 424 if (istat & USB_ISTAT_RESUME_MASK) {
samux 8:335f2506f422 425 USB0->ISTAT = USB_ISTAT_RESUME_MASK;
samux 8:335f2506f422 426 }
samux 8:335f2506f422 427
samux 8:335f2506f422 428 // SOF interrupt
samux 8:335f2506f422 429 if (istat & USB_ISTAT_SOFTOK_MASK) {
mbed_official 20:d38b72fed893 430 USB0->ISTAT = USB_ISTAT_SOFTOK_MASK;
samux 8:335f2506f422 431 // SOF event, read frame number
samux 8:335f2506f422 432 SOF(frameNumber());
samux 8:335f2506f422 433 }
mbed_official 20:d38b72fed893 434
samux 8:335f2506f422 435 // stall interrupt
samux 8:335f2506f422 436 if (istat & 1<<7) {
samux 8:335f2506f422 437 if (USB0->ENDPOINT[0].ENDPT & USB_ENDPT_EPSTALL_MASK)
samux 8:335f2506f422 438 USB0->ENDPOINT[0].ENDPT &= ~USB_ENDPT_EPSTALL_MASK;
samux 8:335f2506f422 439 USB0->ISTAT |= USB_ISTAT_STALL_MASK;
samux 8:335f2506f422 440 }
samux 8:335f2506f422 441
samux 8:335f2506f422 442 // token interrupt
samux 8:335f2506f422 443 if (istat & 1<<3) {
samux 8:335f2506f422 444 uint32_t num = (USB0->STAT >> 4) & 0x0F;
samux 8:335f2506f422 445 uint32_t dir = (USB0->STAT >> 3) & 0x01;
samux 8:335f2506f422 446 uint32_t ev_odd = (USB0->STAT >> 2) & 0x01;
samux 8:335f2506f422 447
samux 8:335f2506f422 448 // setup packet
samux 8:335f2506f422 449 if ((num == 0) && (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == SETUP_TOKEN)) {
samux 8:335f2506f422 450 Data1 &= ~0x02;
samux 8:335f2506f422 451 bdt[EP_BDT_IDX(0, TX, EVEN)].info &= ~BD_OWN_MASK;
samux 8:335f2506f422 452 bdt[EP_BDT_IDX(0, TX, ODD)].info &= ~BD_OWN_MASK;
samux 8:335f2506f422 453
samux 8:335f2506f422 454 // EP0 SETUP event (SETUP data received)
samux 8:335f2506f422 455 EP0setupCallback();
mbed_official 20:d38b72fed893 456
samux 8:335f2506f422 457 } else {
samux 8:335f2506f422 458 // OUT packet
samux 8:335f2506f422 459 if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == OUT_TOKEN) {
samux 8:335f2506f422 460 if (num == 0)
samux 8:335f2506f422 461 EP0out();
samux 8:335f2506f422 462 else {
samux 8:335f2506f422 463 epComplete |= (1 << EP(num));
samux 8:335f2506f422 464 if ((instance->*(epCallback[EP(num) - 2]))()) {
samux 8:335f2506f422 465 epComplete &= ~(1 << EP(num));
samux 8:335f2506f422 466 }
samux 8:335f2506f422 467 }
samux 8:335f2506f422 468 }
samux 8:335f2506f422 469
samux 8:335f2506f422 470 // IN packet
samux 8:335f2506f422 471 if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == IN_TOKEN) {
samux 8:335f2506f422 472 if (num == 0) {
samux 8:335f2506f422 473 EP0in();
samux 8:335f2506f422 474 if (set_addr == 1) {
samux 8:335f2506f422 475 USB0->ADDR = addr & 0x7F;
samux 8:335f2506f422 476 set_addr = 0;
samux 8:335f2506f422 477 }
samux 8:335f2506f422 478 }
samux 8:335f2506f422 479 else {
samux 8:335f2506f422 480 epComplete |= (1 << (EP(num) + 1));
samux 8:335f2506f422 481 if ((instance->*(epCallback[EP(num) + 1 - 2]))()) {
samux 8:335f2506f422 482 epComplete &= ~(1 << (EP(num) + 1));
samux 8:335f2506f422 483 }
samux 8:335f2506f422 484 }
samux 8:335f2506f422 485 }
samux 8:335f2506f422 486 }
samux 8:335f2506f422 487
samux 8:335f2506f422 488 USB0->ISTAT = USB_ISTAT_TOKDNE_MASK;
samux 8:335f2506f422 489 }
mbed_official 20:d38b72fed893 490
samux 8:335f2506f422 491 // sleep interrupt
samux 8:335f2506f422 492 if (istat & 1<<4) {
samux 8:335f2506f422 493 USB0->ISTAT |= USB_ISTAT_SLEEP_MASK;
mbed_official 20:d38b72fed893 494 }
samux 8:335f2506f422 495
samux 8:335f2506f422 496 // error interrupt
samux 8:335f2506f422 497 if (istat & USB_ISTAT_ERROR_MASK) {
samux 8:335f2506f422 498 USB0->ERRSTAT = 0xFF;
samux 8:335f2506f422 499 USB0->ISTAT |= USB_ISTAT_ERROR_MASK;
samux 8:335f2506f422 500 }
samux 8:335f2506f422 501 }
samux 8:335f2506f422 502
samux 8:335f2506f422 503
samux 8:335f2506f422 504 #endif