ENSMM / USBDevice

USBDevice with Nucleo 32L476RG support

Dependents:   ObCP_ENSMM_V2020_Test_Accelero

targets/TARGET_Freescale/USBHAL_KL25Z.cpp@72:14a22343c610, 2020-09-30 (annotated)

Committer:
jimbaud
Date:
Wed Sep 30 11:26:16 2020 +0000
Revision:
72:14a22343c610
Parent:
71:53949e6131f6 
USBDevice with Nucleo 32L476RG support

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 71:53949e6131f6 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
Kojto 71:53949e6131f6 2 *
Kojto 71:53949e6131f6 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Kojto 71:53949e6131f6 4 * and associated documentation files (the "Software"), to deal in the Software without
Kojto 71:53949e6131f6 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
Kojto 71:53949e6131f6 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
Kojto 71:53949e6131f6 7 * Software is furnished to do so, subject to the following conditions:
Kojto 71:53949e6131f6 8 *
Kojto 71:53949e6131f6 9 * The above copyright notice and this permission notice shall be included in all copies or
Kojto 71:53949e6131f6 10 * substantial portions of the Software.
Kojto 71:53949e6131f6 11 *
Kojto 71:53949e6131f6 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Kojto 71:53949e6131f6 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Kojto 71:53949e6131f6 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Kojto 71:53949e6131f6 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Kojto 71:53949e6131f6 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Kojto 71:53949e6131f6 17 */
Kojto 71:53949e6131f6 18
Kojto 71:53949e6131f6 19 #if defined(TARGET_KL25Z) | defined(TARGET_KL43Z) | defined(TARGET_KL46Z) | defined(TARGET_K20D50M) | defined(TARGET_K64F) | defined(TARGET_K22F) | defined(TARGET_TEENSY3_1)
Kojto 71:53949e6131f6 20
Kojto 71:53949e6131f6 21 #if defined(TARGET_KSDK2_MCUS)
Kojto 71:53949e6131f6 22 #include "fsl_common.h"
Kojto 71:53949e6131f6 23 #endif
Kojto 71:53949e6131f6 24 #include "USBHAL.h"
Kojto 71:53949e6131f6 25
Kojto 71:53949e6131f6 26 USBHAL * USBHAL::instance;
Kojto 71:53949e6131f6 27
Kojto 71:53949e6131f6 28 static volatile int epComplete = 0;
Kojto 71:53949e6131f6 29
Kojto 71:53949e6131f6 30 // Convert physical endpoint number to register bit
Kojto 71:53949e6131f6 31 #define EP(endpoint) (1<<(endpoint))
Kojto 71:53949e6131f6 32
Kojto 71:53949e6131f6 33 // Convert physical to logical
Kojto 71:53949e6131f6 34 #define PHY_TO_LOG(endpoint) ((endpoint)>>1)
Kojto 71:53949e6131f6 35
Kojto 71:53949e6131f6 36 // Get endpoint direction
Kojto 71:53949e6131f6 37 #define IN_EP(endpoint) ((endpoint) & 1U ? true : false)
Kojto 71:53949e6131f6 38 #define OUT_EP(endpoint) ((endpoint) & 1U ? false : true)
Kojto 71:53949e6131f6 39
Kojto 71:53949e6131f6 40 #define BD_OWN_MASK (1<<7)
Kojto 71:53949e6131f6 41 #define BD_DATA01_MASK (1<<6)
Kojto 71:53949e6131f6 42 #define BD_KEEP_MASK (1<<5)
Kojto 71:53949e6131f6 43 #define BD_NINC_MASK (1<<4)
Kojto 71:53949e6131f6 44 #define BD_DTS_MASK (1<<3)
Kojto 71:53949e6131f6 45 #define BD_STALL_MASK (1<<2)
Kojto 71:53949e6131f6 46
Kojto 71:53949e6131f6 47 #define TX 1
Kojto 71:53949e6131f6 48 #define RX 0
Kojto 71:53949e6131f6 49 #define ODD 0
Kojto 71:53949e6131f6 50 #define EVEN 1
Kojto 71:53949e6131f6 51 // this macro waits a physical endpoint number
Kojto 71:53949e6131f6 52 #define EP_BDT_IDX(ep, dir, odd) (((ep * 4) + (2 * dir) + (1 * odd)))
Kojto 71:53949e6131f6 53
Kojto 71:53949e6131f6 54 #define SETUP_TOKEN 0x0D
Kojto 71:53949e6131f6 55 #define IN_TOKEN 0x09
Kojto 71:53949e6131f6 56 #define OUT_TOKEN 0x01
Kojto 71:53949e6131f6 57 #define TOK_PID(idx) ((bdt[idx].info >> 2) & 0x0F)
Kojto 71:53949e6131f6 58
Kojto 71:53949e6131f6 59 // for each endpt: 8 bytes
Kojto 71:53949e6131f6 60 typedef struct BDT {
Kojto 71:53949e6131f6 61 uint8_t info; // BD[0:7]
Kojto 71:53949e6131f6 62 uint8_t dummy; // RSVD: BD[8:15]
Kojto 71:53949e6131f6 63 uint16_t byte_count; // BD[16:32]
Kojto 71:53949e6131f6 64 uint32_t address; // Addr
Kojto 71:53949e6131f6 65 } BDT;
Kojto 71:53949e6131f6 66
Kojto 71:53949e6131f6 67 // there are:
Kojto 71:53949e6131f6 68 // * 4 bidirectionnal endpt -> 8 physical endpt
Kojto 71:53949e6131f6 69 // * as there are ODD and EVEN buffer -> 8*2 bdt
Kojto 71:53949e6131f6 70 MBED_ALIGN(512) BDT bdt[NUMBER_OF_PHYSICAL_ENDPOINTS * 2]; // 512 bytes aligned!
Kojto 71:53949e6131f6 71
Kojto 71:53949e6131f6 72 uint8_t * endpoint_buffer[NUMBER_OF_PHYSICAL_ENDPOINTS * 2];
Kojto 71:53949e6131f6 73
Kojto 71:53949e6131f6 74 static uint8_t set_addr = 0;
Kojto 71:53949e6131f6 75 static uint8_t addr = 0;
Kojto 71:53949e6131f6 76
Kojto 71:53949e6131f6 77 static uint32_t Data1 = 0x55555555;
Kojto 71:53949e6131f6 78
Kojto 71:53949e6131f6 79 static uint32_t frameNumber() {
Kojto 71:53949e6131f6 80 return((USB0->FRMNUML | (USB0->FRMNUMH << 8)) & 0x07FF);
Kojto 71:53949e6131f6 81 }
Kojto 71:53949e6131f6 82
Kojto 71:53949e6131f6 83 uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer) {
Kojto 71:53949e6131f6 84 return 0;
Kojto 71:53949e6131f6 85 }
Kojto 71:53949e6131f6 86
Kojto 71:53949e6131f6 87 USBHAL::USBHAL(void) {
Kojto 71:53949e6131f6 88 // Disable IRQ
Kojto 71:53949e6131f6 89 NVIC_DisableIRQ(USB0_IRQn);
Kojto 71:53949e6131f6 90
Kojto 71:53949e6131f6 91 #if (defined(FSL_FEATURE_SOC_MPU_COUNT) && (FSL_FEATURE_SOC_MPU_COUNT > 0U))
Kojto 71:53949e6131f6 92 MPU->CESR=0;
Kojto 71:53949e6131f6 93 #endif
Kojto 71:53949e6131f6 94 // fill in callback array
Kojto 71:53949e6131f6 95 epCallback[0] = &USBHAL::EP1_OUT_callback;
Kojto 71:53949e6131f6 96 epCallback[1] = &USBHAL::EP1_IN_callback;
Kojto 71:53949e6131f6 97 epCallback[2] = &USBHAL::EP2_OUT_callback;
Kojto 71:53949e6131f6 98 epCallback[3] = &USBHAL::EP2_IN_callback;
Kojto 71:53949e6131f6 99 epCallback[4] = &USBHAL::EP3_OUT_callback;
Kojto 71:53949e6131f6 100 epCallback[5] = &USBHAL::EP3_IN_callback;
Kojto 71:53949e6131f6 101 epCallback[6] = &USBHAL::EP4_OUT_callback;
Kojto 71:53949e6131f6 102 epCallback[7] = &USBHAL::EP4_IN_callback;
Kojto 71:53949e6131f6 103
Kojto 71:53949e6131f6 104 #if defined(TARGET_KL43Z) || defined(TARGET_K22F) || defined(TARGET_K64F)
Kojto 71:53949e6131f6 105 // enable USBFS clock
Kojto 71:53949e6131f6 106 CLOCK_EnableUsbfs0Clock(kCLOCK_UsbSrcIrc48M, 48000000U);
Kojto 71:53949e6131f6 107 #else
Kojto 71:53949e6131f6 108 // choose usb src as PLL
Kojto 71:53949e6131f6 109 SIM->SOPT2 &= ~SIM_SOPT2_PLLFLLSEL_MASK;
Kojto 71:53949e6131f6 110 SIM->SOPT2 |= (SIM_SOPT2_USBSRC_MASK | (1 << SIM_SOPT2_PLLFLLSEL_SHIFT));
Kojto 71:53949e6131f6 111
Kojto 71:53949e6131f6 112 // enable OTG clock
Kojto 71:53949e6131f6 113 SIM->SCGC4 |= SIM_SCGC4_USBOTG_MASK;
Kojto 71:53949e6131f6 114 #endif
Kojto 71:53949e6131f6 115
Kojto 71:53949e6131f6 116 // Attach IRQ
Kojto 71:53949e6131f6 117 instance = this;
Kojto 71:53949e6131f6 118 NVIC_SetVector(USB0_IRQn, (uint32_t)&_usbisr);
Kojto 71:53949e6131f6 119 NVIC_EnableIRQ(USB0_IRQn);
Kojto 71:53949e6131f6 120
Kojto 71:53949e6131f6 121 // USB Module Configuration
Kojto 71:53949e6131f6 122 // Set BDT Base Register
Kojto 71:53949e6131f6 123 USB0->BDTPAGE1 = (uint8_t)((uint32_t)bdt>>8);
Kojto 71:53949e6131f6 124 USB0->BDTPAGE2 = (uint8_t)((uint32_t)bdt>>16);
Kojto 71:53949e6131f6 125 USB0->BDTPAGE3 = (uint8_t)((uint32_t)bdt>>24);
Kojto 71:53949e6131f6 126
Kojto 71:53949e6131f6 127 // Clear interrupt flag
Kojto 71:53949e6131f6 128 USB0->ISTAT = 0xff;
Kojto 71:53949e6131f6 129
Kojto 71:53949e6131f6 130 // USB Interrupt Enablers
Kojto 71:53949e6131f6 131 USB0->INTEN |= USB_INTEN_TOKDNEEN_MASK |
Kojto 71:53949e6131f6 132 USB_INTEN_SOFTOKEN_MASK |
Kojto 71:53949e6131f6 133 USB_INTEN_ERROREN_MASK |
Kojto 71:53949e6131f6 134 USB_INTEN_USBRSTEN_MASK;
Kojto 71:53949e6131f6 135
Kojto 71:53949e6131f6 136 // Disable weak pull downs
Kojto 71:53949e6131f6 137 USB0->USBCTRL &= ~(USB_USBCTRL_PDE_MASK | USB_USBCTRL_SUSP_MASK);
Kojto 71:53949e6131f6 138
Kojto 71:53949e6131f6 139 USB0->USBTRC0 |= 0x40;
Kojto 71:53949e6131f6 140
Kojto 71:53949e6131f6 141 /* Allocate control endpoint buffers */
Kojto 71:53949e6131f6 142 endpoint_buffer[EP_BDT_IDX(0, TX, ODD)] = (uint8_t *)malloc(MAX_PACKET_SIZE_EP0);
Kojto 71:53949e6131f6 143 endpoint_buffer[EP_BDT_IDX(0, RX, ODD)] = (uint8_t *)malloc(MAX_PACKET_SIZE_EP0);
Kojto 71:53949e6131f6 144 }
Kojto 71:53949e6131f6 145
Kojto 71:53949e6131f6 146 USBHAL::~USBHAL(void) { }
Kojto 71:53949e6131f6 147
Kojto 71:53949e6131f6 148 void USBHAL::connect(void) {
Kojto 71:53949e6131f6 149 // enable USB
Kojto 71:53949e6131f6 150 USB0->CTL |= USB_CTL_USBENSOFEN_MASK;
Kojto 71:53949e6131f6 151 // Pull up enable
Kojto 71:53949e6131f6 152 USB0->CONTROL |= USB_CONTROL_DPPULLUPNONOTG_MASK;
Kojto 71:53949e6131f6 153
Kojto 71:53949e6131f6 154 // Allocate endpoint buffers; do allocate control endpoint buffers
Kojto 71:53949e6131f6 155 for (int i = 4; i < (NUMBER_OF_PHYSICAL_ENDPOINTS * 2); i++) {
Kojto 71:53949e6131f6 156 if ((i == EPISO_OUT) || (i == EPISO_IN)) {
Kojto 71:53949e6131f6 157 endpoint_buffer[i] = (uint8_t *)malloc(MAX_PACKET_SIZE_EPISO);
Kojto 71:53949e6131f6 158 } else {
Kojto 71:53949e6131f6 159 endpoint_buffer[i] = (uint8_t *)malloc(MAX_PACKET_SIZE_EPBULK);
Kojto 71:53949e6131f6 160 }
Kojto 71:53949e6131f6 161 }
Kojto 71:53949e6131f6 162 }
Kojto 71:53949e6131f6 163
Kojto 71:53949e6131f6 164 void USBHAL::disconnect(void) {
Kojto 71:53949e6131f6 165 // disable USB
Kojto 71:53949e6131f6 166 USB0->CTL &= ~USB_CTL_USBENSOFEN_MASK;
Kojto 71:53949e6131f6 167 // Pull up disable
Kojto 71:53949e6131f6 168 USB0->CONTROL &= ~USB_CONTROL_DPPULLUPNONOTG_MASK;
Kojto 71:53949e6131f6 169
Kojto 71:53949e6131f6 170 //Free buffers if required; do not free the control endpoint buffers
Kojto 71:53949e6131f6 171 for (int i = 4; i < (NUMBER_OF_PHYSICAL_ENDPOINTS * 2); i++) {
Kojto 71:53949e6131f6 172 free(endpoint_buffer[i]);
Kojto 71:53949e6131f6 173 endpoint_buffer[i] = NULL;
Kojto 71:53949e6131f6 174 }
Kojto 71:53949e6131f6 175 }
Kojto 71:53949e6131f6 176
Kojto 71:53949e6131f6 177 void USBHAL::configureDevice(void) {
Kojto 71:53949e6131f6 178 // not needed
Kojto 71:53949e6131f6 179 }
Kojto 71:53949e6131f6 180
Kojto 71:53949e6131f6 181 void USBHAL::unconfigureDevice(void) {
Kojto 71:53949e6131f6 182 // not needed
Kojto 71:53949e6131f6 183 }
Kojto 71:53949e6131f6 184
Kojto 71:53949e6131f6 185 void USBHAL::setAddress(uint8_t address) {
Kojto 71:53949e6131f6 186 // we don't set the address now otherwise the usb controller does not ack
Kojto 71:53949e6131f6 187 // we set a flag instead
Kojto 71:53949e6131f6 188 // see usbisr when an IN token is received
Kojto 71:53949e6131f6 189 set_addr = 1;
Kojto 71:53949e6131f6 190 addr = address;
Kojto 71:53949e6131f6 191 }
Kojto 71:53949e6131f6 192
Kojto 71:53949e6131f6 193 bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t flags) {
Kojto 71:53949e6131f6 194 uint32_t handshake_flag = 0;
Kojto 71:53949e6131f6 195 uint8_t * buf;
Kojto 71:53949e6131f6 196
Kojto 71:53949e6131f6 197 if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
Kojto 71:53949e6131f6 198 return false;
Kojto 71:53949e6131f6 199 }
Kojto 71:53949e6131f6 200
Kojto 71:53949e6131f6 201 uint32_t log_endpoint = PHY_TO_LOG(endpoint);
Kojto 71:53949e6131f6 202
Kojto 71:53949e6131f6 203 if ((flags & ISOCHRONOUS) == 0) {
Kojto 71:53949e6131f6 204 handshake_flag = USB_ENDPT_EPHSHK_MASK;
Kojto 71:53949e6131f6 205 }
Kojto 71:53949e6131f6 206
Kojto 71:53949e6131f6 207 if (IN_EP(endpoint)) {
Kojto 71:53949e6131f6 208 buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, TX, ODD)][0];
Kojto 71:53949e6131f6 209 } else {
Kojto 71:53949e6131f6 210 buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, RX, ODD)][0];
Kojto 71:53949e6131f6 211 }
Kojto 71:53949e6131f6 212
Kojto 71:53949e6131f6 213 // IN endpt -> device to host (TX)
Kojto 71:53949e6131f6 214 if (IN_EP(endpoint)) {
Kojto 71:53949e6131f6 215 USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag | // ep handshaking (not if iso endpoint)
Kojto 71:53949e6131f6 216 USB_ENDPT_EPTXEN_MASK; // en TX (IN) tran
Kojto 71:53949e6131f6 217 bdt[EP_BDT_IDX(log_endpoint, TX, ODD )].address = (uint32_t) buf;
Kojto 71:53949e6131f6 218 bdt[EP_BDT_IDX(log_endpoint, TX, EVEN)].address = 0;
Kojto 71:53949e6131f6 219 }
Kojto 71:53949e6131f6 220 // OUT endpt -> host to device (RX)
Kojto 71:53949e6131f6 221 else {
Kojto 71:53949e6131f6 222 USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag | // ep handshaking (not if iso endpoint)
Kojto 71:53949e6131f6 223 USB_ENDPT_EPRXEN_MASK; // en RX (OUT) tran.
Kojto 71:53949e6131f6 224 bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].byte_count = maxPacket;
Kojto 71:53949e6131f6 225 bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].address = (uint32_t) buf;
Kojto 71:53949e6131f6 226 bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].info = BD_OWN_MASK | BD_DTS_MASK;
Kojto 71:53949e6131f6 227 bdt[EP_BDT_IDX(log_endpoint, RX, EVEN)].info = 0;
Kojto 71:53949e6131f6 228 }
Kojto 71:53949e6131f6 229
Kojto 71:53949e6131f6 230 Data1 |= (1 << endpoint);
Kojto 71:53949e6131f6 231
Kojto 71:53949e6131f6 232 return true;
Kojto 71:53949e6131f6 233 }
Kojto 71:53949e6131f6 234
Kojto 71:53949e6131f6 235 // read setup packet
Kojto 71:53949e6131f6 236 void USBHAL::EP0setup(uint8_t *buffer) {
Kojto 71:53949e6131f6 237 uint32_t sz;
Kojto 71:53949e6131f6 238 endpointReadResult(EP0OUT, buffer, &sz);
Kojto 71:53949e6131f6 239 }
Kojto 71:53949e6131f6 240
Kojto 71:53949e6131f6 241 void USBHAL::EP0readStage(void) {
Kojto 71:53949e6131f6 242 Data1 &= ~1UL; // set DATA0
Kojto 71:53949e6131f6 243 bdt[0].info = (BD_DTS_MASK | BD_OWN_MASK);
Kojto 71:53949e6131f6 244 }
Kojto 71:53949e6131f6 245
Kojto 71:53949e6131f6 246 void USBHAL::EP0read(void) {
Kojto 71:53949e6131f6 247 uint32_t idx = EP_BDT_IDX(PHY_TO_LOG(EP0OUT), RX, 0);
Kojto 71:53949e6131f6 248 bdt[idx].byte_count = MAX_PACKET_SIZE_EP0;
Kojto 71:53949e6131f6 249 }
Kojto 71:53949e6131f6 250
Kojto 71:53949e6131f6 251 uint32_t USBHAL::EP0getReadResult(uint8_t *buffer) {
Kojto 71:53949e6131f6 252 uint32_t sz;
Kojto 71:53949e6131f6 253 endpointReadResult(EP0OUT, buffer, &sz);
Kojto 71:53949e6131f6 254 return sz;
Kojto 71:53949e6131f6 255 }
Kojto 71:53949e6131f6 256
Kojto 71:53949e6131f6 257 void USBHAL::EP0write(uint8_t *buffer, uint32_t size) {
Kojto 71:53949e6131f6 258 endpointWrite(EP0IN, buffer, size);
Kojto 71:53949e6131f6 259 }
Kojto 71:53949e6131f6 260
Kojto 71:53949e6131f6 261 void USBHAL::EP0getWriteResult(void) {
Kojto 71:53949e6131f6 262 }
Kojto 71:53949e6131f6 263
Kojto 71:53949e6131f6 264 void USBHAL::EP0stall(void) {
Kojto 71:53949e6131f6 265 stallEndpoint(EP0OUT);
Kojto 71:53949e6131f6 266 }
Kojto 71:53949e6131f6 267
Kojto 71:53949e6131f6 268 EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize) {
Kojto 71:53949e6131f6 269 endpoint = PHY_TO_LOG(endpoint);
Kojto 71:53949e6131f6 270 uint32_t idx = EP_BDT_IDX(endpoint, RX, 0);
Kojto 71:53949e6131f6 271 bdt[idx].byte_count = maximumSize;
Kojto 71:53949e6131f6 272 return EP_PENDING;
Kojto 71:53949e6131f6 273 }
Kojto 71:53949e6131f6 274
Kojto 71:53949e6131f6 275 EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t * buffer, uint32_t *bytesRead) {
Kojto 71:53949e6131f6 276 uint32_t n, sz, idx, setup = 0;
Kojto 71:53949e6131f6 277 uint8_t not_iso;
Kojto 71:53949e6131f6 278 uint8_t * ep_buf;
Kojto 71:53949e6131f6 279
Kojto 71:53949e6131f6 280 uint32_t log_endpoint = PHY_TO_LOG(endpoint);
Kojto 71:53949e6131f6 281
Kojto 71:53949e6131f6 282 if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
Kojto 71:53949e6131f6 283 return EP_INVALID;
Kojto 71:53949e6131f6 284 }
Kojto 71:53949e6131f6 285
Kojto 71:53949e6131f6 286 // if read on a IN endpoint -> error
Kojto 71:53949e6131f6 287 if (IN_EP(endpoint)) {
Kojto 71:53949e6131f6 288 return EP_INVALID;
Kojto 71:53949e6131f6 289 }
Kojto 71:53949e6131f6 290
Kojto 71:53949e6131f6 291 idx = EP_BDT_IDX(log_endpoint, RX, 0);
Kojto 71:53949e6131f6 292 sz = bdt[idx].byte_count;
Kojto 71:53949e6131f6 293 not_iso = USB0->ENDPOINT[log_endpoint].ENDPT & USB_ENDPT_EPHSHK_MASK;
Kojto 71:53949e6131f6 294
Kojto 71:53949e6131f6 295 //for isochronous endpoint, we don't wait an interrupt
Kojto 71:53949e6131f6 296 if ((log_endpoint != 0) && not_iso && !(epComplete & EP(endpoint))) {
Kojto 71:53949e6131f6 297 return EP_PENDING;
Kojto 71:53949e6131f6 298 }
Kojto 71:53949e6131f6 299
Kojto 71:53949e6131f6 300 if ((log_endpoint == 0) && (TOK_PID(idx) == SETUP_TOKEN)) {
Kojto 71:53949e6131f6 301 setup = 1;
Kojto 71:53949e6131f6 302 }
Kojto 71:53949e6131f6 303
Kojto 71:53949e6131f6 304 ep_buf = endpoint_buffer[idx];
Kojto 71:53949e6131f6 305
Kojto 71:53949e6131f6 306 for (n = 0; n < sz; n++) {
Kojto 71:53949e6131f6 307 buffer[n] = ep_buf[n];
Kojto 71:53949e6131f6 308 }
Kojto 71:53949e6131f6 309
Kojto 71:53949e6131f6 310 if (((Data1 >> endpoint) & 1) == ((bdt[idx].info >> 6) & 1)) {
Kojto 71:53949e6131f6 311 if (setup && (buffer[6] == 0)) // if no setup data stage,
Kojto 71:53949e6131f6 312 Data1 &= ~1UL; // set DATA0
Kojto 71:53949e6131f6 313 else
Kojto 71:53949e6131f6 314 Data1 ^= (1 << endpoint);
Kojto 71:53949e6131f6 315 }
Kojto 71:53949e6131f6 316
Kojto 71:53949e6131f6 317 if (((Data1 >> endpoint) & 1)) {
Kojto 71:53949e6131f6 318 bdt[idx].info = BD_DTS_MASK | BD_DATA01_MASK | BD_OWN_MASK;
Kojto 71:53949e6131f6 319 }
Kojto 71:53949e6131f6 320 else {
Kojto 71:53949e6131f6 321 bdt[idx].info = BD_DTS_MASK | BD_OWN_MASK;
Kojto 71:53949e6131f6 322 }
Kojto 71:53949e6131f6 323
Kojto 71:53949e6131f6 324 USB0->CTL &= ~USB_CTL_TXSUSPENDTOKENBUSY_MASK;
Kojto 71:53949e6131f6 325 *bytesRead = sz;
Kojto 71:53949e6131f6 326
Kojto 71:53949e6131f6 327 epComplete &= ~EP(endpoint);
Kojto 71:53949e6131f6 328 return EP_COMPLETED;
Kojto 71:53949e6131f6 329 }
Kojto 71:53949e6131f6 330
Kojto 71:53949e6131f6 331 EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size) {
Kojto 71:53949e6131f6 332 uint32_t idx, n;
Kojto 71:53949e6131f6 333 uint8_t * ep_buf;
Kojto 71:53949e6131f6 334
Kojto 71:53949e6131f6 335 if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
Kojto 71:53949e6131f6 336 return EP_INVALID;
Kojto 71:53949e6131f6 337 }
Kojto 71:53949e6131f6 338
Kojto 71:53949e6131f6 339 // if write on a OUT endpoint -> error
Kojto 71:53949e6131f6 340 if (OUT_EP(endpoint)) {
Kojto 71:53949e6131f6 341 return EP_INVALID;
Kojto 71:53949e6131f6 342 }
Kojto 71:53949e6131f6 343
Kojto 71:53949e6131f6 344 idx = EP_BDT_IDX(PHY_TO_LOG(endpoint), TX, 0);
Kojto 71:53949e6131f6 345 bdt[idx].byte_count = size;
Kojto 71:53949e6131f6 346
Kojto 71:53949e6131f6 347 ep_buf = endpoint_buffer[idx];
Kojto 71:53949e6131f6 348
Kojto 71:53949e6131f6 349 for (n = 0; n < size; n++) {
Kojto 71:53949e6131f6 350 ep_buf[n] = data[n];
Kojto 71:53949e6131f6 351 }
Kojto 71:53949e6131f6 352
Kojto 71:53949e6131f6 353 if ((Data1 >> endpoint) & 1) {
Kojto 71:53949e6131f6 354 bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK;
Kojto 71:53949e6131f6 355 } else {
Kojto 71:53949e6131f6 356 bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK | BD_DATA01_MASK;
Kojto 71:53949e6131f6 357 }
Kojto 71:53949e6131f6 358
Kojto 71:53949e6131f6 359 Data1 ^= (1 << endpoint);
Kojto 71:53949e6131f6 360
Kojto 71:53949e6131f6 361 return EP_PENDING;
Kojto 71:53949e6131f6 362 }
Kojto 71:53949e6131f6 363
Kojto 71:53949e6131f6 364 EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint) {
Kojto 71:53949e6131f6 365 if (epComplete & EP(endpoint)) {
Kojto 71:53949e6131f6 366 epComplete &= ~EP(endpoint);
Kojto 71:53949e6131f6 367 return EP_COMPLETED;
Kojto 71:53949e6131f6 368 }
Kojto 71:53949e6131f6 369
Kojto 71:53949e6131f6 370 return EP_PENDING;
Kojto 71:53949e6131f6 371 }
Kojto 71:53949e6131f6 372
Kojto 71:53949e6131f6 373 void USBHAL::stallEndpoint(uint8_t endpoint) {
Kojto 71:53949e6131f6 374 USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT |= USB_ENDPT_EPSTALL_MASK;
Kojto 71:53949e6131f6 375 }
Kojto 71:53949e6131f6 376
Kojto 71:53949e6131f6 377 void USBHAL::unstallEndpoint(uint8_t endpoint) {
Kojto 71:53949e6131f6 378 USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT &= ~USB_ENDPT_EPSTALL_MASK;
Kojto 71:53949e6131f6 379 }
Kojto 71:53949e6131f6 380
Kojto 71:53949e6131f6 381 bool USBHAL::getEndpointStallState(uint8_t endpoint) {
Kojto 71:53949e6131f6 382 uint8_t stall = (USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT & USB_ENDPT_EPSTALL_MASK);
Kojto 71:53949e6131f6 383 return (stall) ? true : false;
Kojto 71:53949e6131f6 384 }
Kojto 71:53949e6131f6 385
Kojto 71:53949e6131f6 386 void USBHAL::remoteWakeup(void) {
Kojto 71:53949e6131f6 387 // [TODO]
Kojto 71:53949e6131f6 388 }
Kojto 71:53949e6131f6 389
Kojto 71:53949e6131f6 390
Kojto 71:53949e6131f6 391 void USBHAL::_usbisr(void) {
Kojto 71:53949e6131f6 392 instance->usbisr();
Kojto 71:53949e6131f6 393 }
Kojto 71:53949e6131f6 394
Kojto 71:53949e6131f6 395
Kojto 71:53949e6131f6 396 void USBHAL::usbisr(void) {
Kojto 71:53949e6131f6 397 uint8_t i;
Kojto 71:53949e6131f6 398 uint8_t istat = USB0->ISTAT;
Kojto 71:53949e6131f6 399
Kojto 71:53949e6131f6 400 // reset interrupt
Kojto 71:53949e6131f6 401 if (istat & USB_ISTAT_USBRST_MASK) {
Kojto 71:53949e6131f6 402 // disable all endpt
Kojto 71:53949e6131f6 403 for(i = 0; i < 16; i++) {
Kojto 71:53949e6131f6 404 USB0->ENDPOINT[i].ENDPT = 0x00;
Kojto 71:53949e6131f6 405 }
Kojto 71:53949e6131f6 406
Kojto 71:53949e6131f6 407 // enable control endpoint
Kojto 71:53949e6131f6 408 realiseEndpoint(EP0OUT, MAX_PACKET_SIZE_EP0, 0);
Kojto 71:53949e6131f6 409 realiseEndpoint(EP0IN, MAX_PACKET_SIZE_EP0, 0);
Kojto 71:53949e6131f6 410
Kojto 71:53949e6131f6 411 Data1 = 0x55555555;
Kojto 71:53949e6131f6 412 USB0->CTL |= USB_CTL_ODDRST_MASK;
Kojto 71:53949e6131f6 413
Kojto 71:53949e6131f6 414 USB0->ISTAT = 0xFF; // clear all interrupt status flags
Kojto 71:53949e6131f6 415 USB0->ERRSTAT = 0xFF; // clear all error flags
Kojto 71:53949e6131f6 416 USB0->ERREN = 0xFF; // enable error interrupt sources
Kojto 71:53949e6131f6 417 USB0->ADDR = 0x00; // set default address
Kojto 71:53949e6131f6 418
Kojto 71:53949e6131f6 419 // reset bus for USBDevice layer
Kojto 71:53949e6131f6 420 busReset();
Kojto 71:53949e6131f6 421
Kojto 71:53949e6131f6 422 return;
Kojto 71:53949e6131f6 423 }
Kojto 71:53949e6131f6 424
Kojto 71:53949e6131f6 425 // resume interrupt
Kojto 71:53949e6131f6 426 if (istat & USB_ISTAT_RESUME_MASK) {
Kojto 71:53949e6131f6 427 USB0->ISTAT = USB_ISTAT_RESUME_MASK;
Kojto 71:53949e6131f6 428 }
Kojto 71:53949e6131f6 429
Kojto 71:53949e6131f6 430 // SOF interrupt
Kojto 71:53949e6131f6 431 if (istat & USB_ISTAT_SOFTOK_MASK) {
Kojto 71:53949e6131f6 432 USB0->ISTAT = USB_ISTAT_SOFTOK_MASK;
Kojto 71:53949e6131f6 433 // SOF event, read frame number
Kojto 71:53949e6131f6 434 SOF(frameNumber());
Kojto 71:53949e6131f6 435 }
Kojto 71:53949e6131f6 436
Kojto 71:53949e6131f6 437 // stall interrupt
Kojto 71:53949e6131f6 438 if (istat & 1<<7) {
Kojto 71:53949e6131f6 439 if (USB0->ENDPOINT[0].ENDPT & USB_ENDPT_EPSTALL_MASK)
Kojto 71:53949e6131f6 440 USB0->ENDPOINT[0].ENDPT &= ~USB_ENDPT_EPSTALL_MASK;
Kojto 71:53949e6131f6 441 USB0->ISTAT |= USB_ISTAT_STALL_MASK;
Kojto 71:53949e6131f6 442 }
Kojto 71:53949e6131f6 443
Kojto 71:53949e6131f6 444 // token interrupt
Kojto 71:53949e6131f6 445 if (istat & 1<<3) {
Kojto 71:53949e6131f6 446 uint32_t num = (USB0->STAT >> 4) & 0x0F;
Kojto 71:53949e6131f6 447 uint32_t dir = (USB0->STAT >> 3) & 0x01;
Kojto 71:53949e6131f6 448 uint32_t ev_odd = (USB0->STAT >> 2) & 0x01;
Kojto 71:53949e6131f6 449 int endpoint = (num << 1) | dir;
Kojto 71:53949e6131f6 450
Kojto 71:53949e6131f6 451 // setup packet
Kojto 71:53949e6131f6 452 if ((num == 0) && (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == SETUP_TOKEN)) {
Kojto 71:53949e6131f6 453 Data1 &= ~0x02;
Kojto 71:53949e6131f6 454 bdt[EP_BDT_IDX(0, TX, EVEN)].info &= ~BD_OWN_MASK;
Kojto 71:53949e6131f6 455 bdt[EP_BDT_IDX(0, TX, ODD)].info &= ~BD_OWN_MASK;
Kojto 71:53949e6131f6 456
Kojto 71:53949e6131f6 457 // EP0 SETUP event (SETUP data received)
Kojto 71:53949e6131f6 458 EP0setupCallback();
Kojto 71:53949e6131f6 459
Kojto 71:53949e6131f6 460 } else {
Kojto 71:53949e6131f6 461 // OUT packet
Kojto 71:53949e6131f6 462 if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == OUT_TOKEN) {
Kojto 71:53949e6131f6 463 if (num == 0)
Kojto 71:53949e6131f6 464 EP0out();
Kojto 71:53949e6131f6 465 else {
Kojto 71:53949e6131f6 466 epComplete |= EP(endpoint);
Kojto 71:53949e6131f6 467 if ((instance->*(epCallback[endpoint - 2]))()) {
Kojto 71:53949e6131f6 468 epComplete &= ~EP(endpoint);
Kojto 71:53949e6131f6 469 }
Kojto 71:53949e6131f6 470 }
Kojto 71:53949e6131f6 471 }
Kojto 71:53949e6131f6 472
Kojto 71:53949e6131f6 473 // IN packet
Kojto 71:53949e6131f6 474 if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == IN_TOKEN) {
Kojto 71:53949e6131f6 475 if (num == 0) {
Kojto 71:53949e6131f6 476 EP0in();
Kojto 71:53949e6131f6 477 if (set_addr == 1) {
Kojto 71:53949e6131f6 478 USB0->ADDR = addr & 0x7F;
Kojto 71:53949e6131f6 479 set_addr = 0;
Kojto 71:53949e6131f6 480 }
Kojto 71:53949e6131f6 481 }
Kojto 71:53949e6131f6 482 else {
Kojto 71:53949e6131f6 483 epComplete |= EP(endpoint);
Kojto 71:53949e6131f6 484 if ((instance->*(epCallback[endpoint - 2]))()) {
Kojto 71:53949e6131f6 485 epComplete &= ~EP(endpoint);
Kojto 71:53949e6131f6 486 }
Kojto 71:53949e6131f6 487 }
Kojto 71:53949e6131f6 488 }
Kojto 71:53949e6131f6 489 }
Kojto 71:53949e6131f6 490
Kojto 71:53949e6131f6 491 USB0->ISTAT = USB_ISTAT_TOKDNE_MASK;
Kojto 71:53949e6131f6 492 }
Kojto 71:53949e6131f6 493
Kojto 71:53949e6131f6 494 // sleep interrupt
Kojto 71:53949e6131f6 495 if (istat & 1<<4) {
Kojto 71:53949e6131f6 496 USB0->ISTAT |= USB_ISTAT_SLEEP_MASK;
Kojto 71:53949e6131f6 497 }
Kojto 71:53949e6131f6 498
Kojto 71:53949e6131f6 499 // error interrupt
Kojto 71:53949e6131f6 500 if (istat & USB_ISTAT_ERROR_MASK) {
Kojto 71:53949e6131f6 501 USB0->ERRSTAT = 0xFF;
Kojto 71:53949e6131f6 502 USB0->ISTAT |= USB_ISTAT_ERROR_MASK;
Kojto 71:53949e6131f6 503 }
Kojto 71:53949e6131f6 504 }
Kojto 71:53949e6131f6 505
Kojto 71:53949e6131f6 506
Kojto 71:53949e6131f6 507 #endif