A copy of the mbed USBDevice with USBSerial library
Dependents: STM32L0_LoRa Smartage STM32L0_LoRa Turtle_RadioShuttle
targets/TARGET_Freescale/USBHAL_KL25Z.cpp@0:a3ea811f80f2, 2018-02-05 (annotated)
- Committer:
- Helmut64
- Date:
- Mon Feb 05 10:22:57 2018 +0000
- Revision:
- 0:a3ea811f80f2
Inital checkin after copied from mbed.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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Helmut64 | 0:a3ea811f80f2 | 1 | /* Copyright (c) 2010-2011 mbed.org, MIT License |
Helmut64 | 0:a3ea811f80f2 | 2 | * |
Helmut64 | 0:a3ea811f80f2 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
Helmut64 | 0:a3ea811f80f2 | 4 | * and associated documentation files (the "Software"), to deal in the Software without |
Helmut64 | 0:a3ea811f80f2 | 5 | * restriction, including without limitation the rights to use, copy, modify, merge, publish, |
Helmut64 | 0:a3ea811f80f2 | 6 | * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the |
Helmut64 | 0:a3ea811f80f2 | 7 | * Software is furnished to do so, subject to the following conditions: |
Helmut64 | 0:a3ea811f80f2 | 8 | * |
Helmut64 | 0:a3ea811f80f2 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
Helmut64 | 0:a3ea811f80f2 | 10 | * substantial portions of the Software. |
Helmut64 | 0:a3ea811f80f2 | 11 | * |
Helmut64 | 0:a3ea811f80f2 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
Helmut64 | 0:a3ea811f80f2 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
Helmut64 | 0:a3ea811f80f2 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
Helmut64 | 0:a3ea811f80f2 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
Helmut64 | 0:a3ea811f80f2 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
Helmut64 | 0:a3ea811f80f2 | 17 | */ |
Helmut64 | 0:a3ea811f80f2 | 18 | |
Helmut64 | 0:a3ea811f80f2 | 19 | #if defined(TARGET_KL25Z) | defined(TARGET_KL43Z) | defined(TARGET_KL46Z) | defined(TARGET_K20D50M) | defined(TARGET_K64F) | defined(TARGET_K22F) | defined(TARGET_TEENSY3_1) |
Helmut64 | 0:a3ea811f80f2 | 20 | |
Helmut64 | 0:a3ea811f80f2 | 21 | #if defined(TARGET_KSDK2_MCUS) |
Helmut64 | 0:a3ea811f80f2 | 22 | #include "fsl_common.h" |
Helmut64 | 0:a3ea811f80f2 | 23 | #endif |
Helmut64 | 0:a3ea811f80f2 | 24 | #include "USBHAL.h" |
Helmut64 | 0:a3ea811f80f2 | 25 | #include "mbed_critical.h" |
Helmut64 | 0:a3ea811f80f2 | 26 | |
Helmut64 | 0:a3ea811f80f2 | 27 | USBHAL * USBHAL::instance; |
Helmut64 | 0:a3ea811f80f2 | 28 | |
Helmut64 | 0:a3ea811f80f2 | 29 | static volatile int epComplete = 0; |
Helmut64 | 0:a3ea811f80f2 | 30 | |
Helmut64 | 0:a3ea811f80f2 | 31 | // Convert physical endpoint number to register bit |
Helmut64 | 0:a3ea811f80f2 | 32 | #define EP(endpoint) (1<<(endpoint)) |
Helmut64 | 0:a3ea811f80f2 | 33 | |
Helmut64 | 0:a3ea811f80f2 | 34 | // Convert physical to logical |
Helmut64 | 0:a3ea811f80f2 | 35 | #define PHY_TO_LOG(endpoint) ((endpoint)>>1) |
Helmut64 | 0:a3ea811f80f2 | 36 | |
Helmut64 | 0:a3ea811f80f2 | 37 | // Get endpoint direction |
Helmut64 | 0:a3ea811f80f2 | 38 | #define IN_EP(endpoint) ((endpoint) & 1U ? true : false) |
Helmut64 | 0:a3ea811f80f2 | 39 | #define OUT_EP(endpoint) ((endpoint) & 1U ? false : true) |
Helmut64 | 0:a3ea811f80f2 | 40 | |
Helmut64 | 0:a3ea811f80f2 | 41 | #define BD_OWN_MASK (1<<7) |
Helmut64 | 0:a3ea811f80f2 | 42 | #define BD_DATA01_MASK (1<<6) |
Helmut64 | 0:a3ea811f80f2 | 43 | #define BD_KEEP_MASK (1<<5) |
Helmut64 | 0:a3ea811f80f2 | 44 | #define BD_NINC_MASK (1<<4) |
Helmut64 | 0:a3ea811f80f2 | 45 | #define BD_DTS_MASK (1<<3) |
Helmut64 | 0:a3ea811f80f2 | 46 | #define BD_STALL_MASK (1<<2) |
Helmut64 | 0:a3ea811f80f2 | 47 | |
Helmut64 | 0:a3ea811f80f2 | 48 | #define TX 1 |
Helmut64 | 0:a3ea811f80f2 | 49 | #define RX 0 |
Helmut64 | 0:a3ea811f80f2 | 50 | #define ODD 0 |
Helmut64 | 0:a3ea811f80f2 | 51 | #define EVEN 1 |
Helmut64 | 0:a3ea811f80f2 | 52 | // this macro waits a physical endpoint number |
Helmut64 | 0:a3ea811f80f2 | 53 | #define EP_BDT_IDX(ep, dir, odd) (((ep * 4) + (2 * dir) + (1 * odd))) |
Helmut64 | 0:a3ea811f80f2 | 54 | |
Helmut64 | 0:a3ea811f80f2 | 55 | #define SETUP_TOKEN 0x0D |
Helmut64 | 0:a3ea811f80f2 | 56 | #define IN_TOKEN 0x09 |
Helmut64 | 0:a3ea811f80f2 | 57 | #define OUT_TOKEN 0x01 |
Helmut64 | 0:a3ea811f80f2 | 58 | #define TOK_PID(idx) ((bdt[idx].info >> 2) & 0x0F) |
Helmut64 | 0:a3ea811f80f2 | 59 | |
Helmut64 | 0:a3ea811f80f2 | 60 | // for each endpt: 8 bytes |
Helmut64 | 0:a3ea811f80f2 | 61 | typedef struct BDT { |
Helmut64 | 0:a3ea811f80f2 | 62 | uint8_t info; // BD[0:7] |
Helmut64 | 0:a3ea811f80f2 | 63 | uint8_t dummy; // RSVD: BD[8:15] |
Helmut64 | 0:a3ea811f80f2 | 64 | uint16_t byte_count; // BD[16:32] |
Helmut64 | 0:a3ea811f80f2 | 65 | uint32_t address; // Addr |
Helmut64 | 0:a3ea811f80f2 | 66 | } BDT; |
Helmut64 | 0:a3ea811f80f2 | 67 | |
Helmut64 | 0:a3ea811f80f2 | 68 | typedef enum { |
Helmut64 | 0:a3ea811f80f2 | 69 | CTRL_XFER_READY, |
Helmut64 | 0:a3ea811f80f2 | 70 | CTRL_XFER_IN, |
Helmut64 | 0:a3ea811f80f2 | 71 | CTRL_XFER_NONE, |
Helmut64 | 0:a3ea811f80f2 | 72 | CTRL_XFER_OUT |
Helmut64 | 0:a3ea811f80f2 | 73 | } ctrl_xfer_t; |
Helmut64 | 0:a3ea811f80f2 | 74 | |
Helmut64 | 0:a3ea811f80f2 | 75 | // there are: |
Helmut64 | 0:a3ea811f80f2 | 76 | // * 4 bidirectionnal endpt -> 8 physical endpt |
Helmut64 | 0:a3ea811f80f2 | 77 | // * as there are ODD and EVEN buffer -> 8*2 bdt |
Helmut64 | 0:a3ea811f80f2 | 78 | MBED_ALIGN(512) BDT bdt[NUMBER_OF_PHYSICAL_ENDPOINTS * 2]; // 512 bytes aligned! |
Helmut64 | 0:a3ea811f80f2 | 79 | |
Helmut64 | 0:a3ea811f80f2 | 80 | uint8_t * endpoint_buffer[NUMBER_OF_PHYSICAL_ENDPOINTS * 2]; |
Helmut64 | 0:a3ea811f80f2 | 81 | |
Helmut64 | 0:a3ea811f80f2 | 82 | static uint8_t set_addr = 0; |
Helmut64 | 0:a3ea811f80f2 | 83 | static uint8_t addr = 0; |
Helmut64 | 0:a3ea811f80f2 | 84 | static ctrl_xfer_t ctrl_xfer = CTRL_XFER_READY; |
Helmut64 | 0:a3ea811f80f2 | 85 | |
Helmut64 | 0:a3ea811f80f2 | 86 | static uint32_t Data1 = 0x55555555; |
Helmut64 | 0:a3ea811f80f2 | 87 | |
Helmut64 | 0:a3ea811f80f2 | 88 | static uint32_t frameNumber() { |
Helmut64 | 0:a3ea811f80f2 | 89 | return((USB0->FRMNUML | (USB0->FRMNUMH << 8)) & 0x07FF); |
Helmut64 | 0:a3ea811f80f2 | 90 | } |
Helmut64 | 0:a3ea811f80f2 | 91 | |
Helmut64 | 0:a3ea811f80f2 | 92 | uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer) { |
Helmut64 | 0:a3ea811f80f2 | 93 | return 0; |
Helmut64 | 0:a3ea811f80f2 | 94 | } |
Helmut64 | 0:a3ea811f80f2 | 95 | |
Helmut64 | 0:a3ea811f80f2 | 96 | USBHAL::USBHAL(void) { |
Helmut64 | 0:a3ea811f80f2 | 97 | // Disable IRQ |
Helmut64 | 0:a3ea811f80f2 | 98 | NVIC_DisableIRQ(USB0_IRQn); |
Helmut64 | 0:a3ea811f80f2 | 99 | |
Helmut64 | 0:a3ea811f80f2 | 100 | #if (defined(FSL_FEATURE_SOC_MPU_COUNT) && (FSL_FEATURE_SOC_MPU_COUNT > 0U)) |
Helmut64 | 0:a3ea811f80f2 | 101 | MPU->CESR=0; |
Helmut64 | 0:a3ea811f80f2 | 102 | #endif |
Helmut64 | 0:a3ea811f80f2 | 103 | // fill in callback array |
Helmut64 | 0:a3ea811f80f2 | 104 | epCallback[0] = &USBHAL::EP1_OUT_callback; |
Helmut64 | 0:a3ea811f80f2 | 105 | epCallback[1] = &USBHAL::EP1_IN_callback; |
Helmut64 | 0:a3ea811f80f2 | 106 | epCallback[2] = &USBHAL::EP2_OUT_callback; |
Helmut64 | 0:a3ea811f80f2 | 107 | epCallback[3] = &USBHAL::EP2_IN_callback; |
Helmut64 | 0:a3ea811f80f2 | 108 | epCallback[4] = &USBHAL::EP3_OUT_callback; |
Helmut64 | 0:a3ea811f80f2 | 109 | epCallback[5] = &USBHAL::EP3_IN_callback; |
Helmut64 | 0:a3ea811f80f2 | 110 | epCallback[6] = &USBHAL::EP4_OUT_callback; |
Helmut64 | 0:a3ea811f80f2 | 111 | epCallback[7] = &USBHAL::EP4_IN_callback; |
Helmut64 | 0:a3ea811f80f2 | 112 | |
Helmut64 | 0:a3ea811f80f2 | 113 | #if defined(TARGET_KL43Z) || defined(TARGET_K22F) || defined(TARGET_K64F) |
Helmut64 | 0:a3ea811f80f2 | 114 | // enable USBFS clock |
Helmut64 | 0:a3ea811f80f2 | 115 | CLOCK_EnableUsbfs0Clock(kCLOCK_UsbSrcIrc48M, 48000000U); |
Helmut64 | 0:a3ea811f80f2 | 116 | #else |
Helmut64 | 0:a3ea811f80f2 | 117 | // choose usb src as PLL |
Helmut64 | 0:a3ea811f80f2 | 118 | SIM->SOPT2 &= ~SIM_SOPT2_PLLFLLSEL_MASK; |
Helmut64 | 0:a3ea811f80f2 | 119 | SIM->SOPT2 |= (SIM_SOPT2_USBSRC_MASK | (1 << SIM_SOPT2_PLLFLLSEL_SHIFT)); |
Helmut64 | 0:a3ea811f80f2 | 120 | |
Helmut64 | 0:a3ea811f80f2 | 121 | // enable OTG clock |
Helmut64 | 0:a3ea811f80f2 | 122 | SIM->SCGC4 |= SIM_SCGC4_USBOTG_MASK; |
Helmut64 | 0:a3ea811f80f2 | 123 | #endif |
Helmut64 | 0:a3ea811f80f2 | 124 | |
Helmut64 | 0:a3ea811f80f2 | 125 | // Attach IRQ |
Helmut64 | 0:a3ea811f80f2 | 126 | instance = this; |
Helmut64 | 0:a3ea811f80f2 | 127 | NVIC_SetVector(USB0_IRQn, (uint32_t)&_usbisr); |
Helmut64 | 0:a3ea811f80f2 | 128 | NVIC_EnableIRQ(USB0_IRQn); |
Helmut64 | 0:a3ea811f80f2 | 129 | |
Helmut64 | 0:a3ea811f80f2 | 130 | // USB Module Configuration |
Helmut64 | 0:a3ea811f80f2 | 131 | // Set BDT Base Register |
Helmut64 | 0:a3ea811f80f2 | 132 | USB0->BDTPAGE1 = (uint8_t)((uint32_t)bdt>>8); |
Helmut64 | 0:a3ea811f80f2 | 133 | USB0->BDTPAGE2 = (uint8_t)((uint32_t)bdt>>16); |
Helmut64 | 0:a3ea811f80f2 | 134 | USB0->BDTPAGE3 = (uint8_t)((uint32_t)bdt>>24); |
Helmut64 | 0:a3ea811f80f2 | 135 | |
Helmut64 | 0:a3ea811f80f2 | 136 | // Clear interrupt flag |
Helmut64 | 0:a3ea811f80f2 | 137 | USB0->ISTAT = 0xff; |
Helmut64 | 0:a3ea811f80f2 | 138 | |
Helmut64 | 0:a3ea811f80f2 | 139 | // USB Interrupt Enablers |
Helmut64 | 0:a3ea811f80f2 | 140 | USB0->INTEN |= USB_INTEN_TOKDNEEN_MASK | |
Helmut64 | 0:a3ea811f80f2 | 141 | USB_INTEN_SOFTOKEN_MASK | |
Helmut64 | 0:a3ea811f80f2 | 142 | USB_INTEN_ERROREN_MASK | |
Helmut64 | 0:a3ea811f80f2 | 143 | USB_INTEN_USBRSTEN_MASK; |
Helmut64 | 0:a3ea811f80f2 | 144 | |
Helmut64 | 0:a3ea811f80f2 | 145 | // Disable weak pull downs |
Helmut64 | 0:a3ea811f80f2 | 146 | USB0->USBCTRL &= ~(USB_USBCTRL_PDE_MASK | USB_USBCTRL_SUSP_MASK); |
Helmut64 | 0:a3ea811f80f2 | 147 | |
Helmut64 | 0:a3ea811f80f2 | 148 | USB0->USBTRC0 |= 0x40; |
Helmut64 | 0:a3ea811f80f2 | 149 | |
Helmut64 | 0:a3ea811f80f2 | 150 | /* Allocate control endpoint buffers */ |
Helmut64 | 0:a3ea811f80f2 | 151 | endpoint_buffer[EP_BDT_IDX(0, TX, ODD)] = (uint8_t *)malloc(MAX_PACKET_SIZE_EP0); |
Helmut64 | 0:a3ea811f80f2 | 152 | endpoint_buffer[EP_BDT_IDX(0, RX, ODD)] = (uint8_t *)malloc(MAX_PACKET_SIZE_EP0); |
Helmut64 | 0:a3ea811f80f2 | 153 | } |
Helmut64 | 0:a3ea811f80f2 | 154 | |
Helmut64 | 0:a3ea811f80f2 | 155 | USBHAL::~USBHAL(void) { } |
Helmut64 | 0:a3ea811f80f2 | 156 | |
Helmut64 | 0:a3ea811f80f2 | 157 | void USBHAL::connect(void) { |
Helmut64 | 0:a3ea811f80f2 | 158 | // enable USB |
Helmut64 | 0:a3ea811f80f2 | 159 | USB0->CTL |= USB_CTL_USBENSOFEN_MASK; |
Helmut64 | 0:a3ea811f80f2 | 160 | // Pull up enable |
Helmut64 | 0:a3ea811f80f2 | 161 | USB0->CONTROL |= USB_CONTROL_DPPULLUPNONOTG_MASK; |
Helmut64 | 0:a3ea811f80f2 | 162 | |
Helmut64 | 0:a3ea811f80f2 | 163 | // Allocate endpoint buffers; do allocate control endpoint buffers |
Helmut64 | 0:a3ea811f80f2 | 164 | for (int i = 4; i < (NUMBER_OF_PHYSICAL_ENDPOINTS * 2); i++) { |
Helmut64 | 0:a3ea811f80f2 | 165 | if ((i == EPISO_OUT) || (i == EPISO_IN)) { |
Helmut64 | 0:a3ea811f80f2 | 166 | endpoint_buffer[i] = (uint8_t *)malloc(MAX_PACKET_SIZE_EPISO); |
Helmut64 | 0:a3ea811f80f2 | 167 | } else { |
Helmut64 | 0:a3ea811f80f2 | 168 | endpoint_buffer[i] = (uint8_t *)malloc(MAX_PACKET_SIZE_EPBULK); |
Helmut64 | 0:a3ea811f80f2 | 169 | } |
Helmut64 | 0:a3ea811f80f2 | 170 | } |
Helmut64 | 0:a3ea811f80f2 | 171 | } |
Helmut64 | 0:a3ea811f80f2 | 172 | |
Helmut64 | 0:a3ea811f80f2 | 173 | void USBHAL::disconnect(void) { |
Helmut64 | 0:a3ea811f80f2 | 174 | // disable USB |
Helmut64 | 0:a3ea811f80f2 | 175 | USB0->CTL &= ~USB_CTL_USBENSOFEN_MASK; |
Helmut64 | 0:a3ea811f80f2 | 176 | // Pull up disable |
Helmut64 | 0:a3ea811f80f2 | 177 | USB0->CONTROL &= ~USB_CONTROL_DPPULLUPNONOTG_MASK; |
Helmut64 | 0:a3ea811f80f2 | 178 | |
Helmut64 | 0:a3ea811f80f2 | 179 | //Free buffers if required; do not free the control endpoint buffers |
Helmut64 | 0:a3ea811f80f2 | 180 | for (int i = 4; i < (NUMBER_OF_PHYSICAL_ENDPOINTS * 2); i++) { |
Helmut64 | 0:a3ea811f80f2 | 181 | free(endpoint_buffer[i]); |
Helmut64 | 0:a3ea811f80f2 | 182 | endpoint_buffer[i] = NULL; |
Helmut64 | 0:a3ea811f80f2 | 183 | } |
Helmut64 | 0:a3ea811f80f2 | 184 | } |
Helmut64 | 0:a3ea811f80f2 | 185 | |
Helmut64 | 0:a3ea811f80f2 | 186 | void USBHAL::configureDevice(void) { |
Helmut64 | 0:a3ea811f80f2 | 187 | // not needed |
Helmut64 | 0:a3ea811f80f2 | 188 | } |
Helmut64 | 0:a3ea811f80f2 | 189 | |
Helmut64 | 0:a3ea811f80f2 | 190 | void USBHAL::unconfigureDevice(void) { |
Helmut64 | 0:a3ea811f80f2 | 191 | // not needed |
Helmut64 | 0:a3ea811f80f2 | 192 | } |
Helmut64 | 0:a3ea811f80f2 | 193 | |
Helmut64 | 0:a3ea811f80f2 | 194 | void USBHAL::setAddress(uint8_t address) { |
Helmut64 | 0:a3ea811f80f2 | 195 | // we don't set the address now otherwise the usb controller does not ack |
Helmut64 | 0:a3ea811f80f2 | 196 | // we set a flag instead |
Helmut64 | 0:a3ea811f80f2 | 197 | // see usbisr when an IN token is received |
Helmut64 | 0:a3ea811f80f2 | 198 | set_addr = 1; |
Helmut64 | 0:a3ea811f80f2 | 199 | addr = address; |
Helmut64 | 0:a3ea811f80f2 | 200 | } |
Helmut64 | 0:a3ea811f80f2 | 201 | |
Helmut64 | 0:a3ea811f80f2 | 202 | bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t flags) { |
Helmut64 | 0:a3ea811f80f2 | 203 | uint32_t handshake_flag = 0; |
Helmut64 | 0:a3ea811f80f2 | 204 | uint8_t * buf; |
Helmut64 | 0:a3ea811f80f2 | 205 | |
Helmut64 | 0:a3ea811f80f2 | 206 | if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) { |
Helmut64 | 0:a3ea811f80f2 | 207 | return false; |
Helmut64 | 0:a3ea811f80f2 | 208 | } |
Helmut64 | 0:a3ea811f80f2 | 209 | |
Helmut64 | 0:a3ea811f80f2 | 210 | uint32_t log_endpoint = PHY_TO_LOG(endpoint); |
Helmut64 | 0:a3ea811f80f2 | 211 | |
Helmut64 | 0:a3ea811f80f2 | 212 | if ((flags & ISOCHRONOUS) == 0) { |
Helmut64 | 0:a3ea811f80f2 | 213 | handshake_flag = USB_ENDPT_EPHSHK_MASK; |
Helmut64 | 0:a3ea811f80f2 | 214 | } |
Helmut64 | 0:a3ea811f80f2 | 215 | |
Helmut64 | 0:a3ea811f80f2 | 216 | if (IN_EP(endpoint)) { |
Helmut64 | 0:a3ea811f80f2 | 217 | buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, TX, ODD)][0]; |
Helmut64 | 0:a3ea811f80f2 | 218 | } else { |
Helmut64 | 0:a3ea811f80f2 | 219 | buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, RX, ODD)][0]; |
Helmut64 | 0:a3ea811f80f2 | 220 | } |
Helmut64 | 0:a3ea811f80f2 | 221 | |
Helmut64 | 0:a3ea811f80f2 | 222 | // IN endpt -> device to host (TX) |
Helmut64 | 0:a3ea811f80f2 | 223 | if (IN_EP(endpoint)) { |
Helmut64 | 0:a3ea811f80f2 | 224 | USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag | // ep handshaking (not if iso endpoint) |
Helmut64 | 0:a3ea811f80f2 | 225 | USB_ENDPT_EPTXEN_MASK; // en TX (IN) tran |
Helmut64 | 0:a3ea811f80f2 | 226 | bdt[EP_BDT_IDX(log_endpoint, TX, ODD )].address = (uint32_t) buf; |
Helmut64 | 0:a3ea811f80f2 | 227 | bdt[EP_BDT_IDX(log_endpoint, TX, EVEN)].address = 0; |
Helmut64 | 0:a3ea811f80f2 | 228 | } |
Helmut64 | 0:a3ea811f80f2 | 229 | // OUT endpt -> host to device (RX) |
Helmut64 | 0:a3ea811f80f2 | 230 | else { |
Helmut64 | 0:a3ea811f80f2 | 231 | USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag | // ep handshaking (not if iso endpoint) |
Helmut64 | 0:a3ea811f80f2 | 232 | USB_ENDPT_EPRXEN_MASK; // en RX (OUT) tran. |
Helmut64 | 0:a3ea811f80f2 | 233 | bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].byte_count = maxPacket; |
Helmut64 | 0:a3ea811f80f2 | 234 | bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].address = (uint32_t) buf; |
Helmut64 | 0:a3ea811f80f2 | 235 | bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].info = BD_DTS_MASK; |
Helmut64 | 0:a3ea811f80f2 | 236 | bdt[EP_BDT_IDX(log_endpoint, RX, EVEN)].info = 0; |
Helmut64 | 0:a3ea811f80f2 | 237 | if (log_endpoint == 0) { |
Helmut64 | 0:a3ea811f80f2 | 238 | // Prepare for setup packet |
Helmut64 | 0:a3ea811f80f2 | 239 | bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].info |= BD_OWN_MASK; |
Helmut64 | 0:a3ea811f80f2 | 240 | } |
Helmut64 | 0:a3ea811f80f2 | 241 | } |
Helmut64 | 0:a3ea811f80f2 | 242 | |
Helmut64 | 0:a3ea811f80f2 | 243 | // First transfer will be a DATA0 packet |
Helmut64 | 0:a3ea811f80f2 | 244 | Data1 &= ~(1 << endpoint); |
Helmut64 | 0:a3ea811f80f2 | 245 | |
Helmut64 | 0:a3ea811f80f2 | 246 | return true; |
Helmut64 | 0:a3ea811f80f2 | 247 | } |
Helmut64 | 0:a3ea811f80f2 | 248 | |
Helmut64 | 0:a3ea811f80f2 | 249 | // read setup packet |
Helmut64 | 0:a3ea811f80f2 | 250 | void USBHAL::EP0setup(uint8_t *buffer) { |
Helmut64 | 0:a3ea811f80f2 | 251 | uint32_t sz; |
Helmut64 | 0:a3ea811f80f2 | 252 | endpointReadResult(EP0OUT, buffer, &sz); |
Helmut64 | 0:a3ea811f80f2 | 253 | } |
Helmut64 | 0:a3ea811f80f2 | 254 | |
Helmut64 | 0:a3ea811f80f2 | 255 | void USBHAL::EP0readStage(void) { |
Helmut64 | 0:a3ea811f80f2 | 256 | // Not needed |
Helmut64 | 0:a3ea811f80f2 | 257 | } |
Helmut64 | 0:a3ea811f80f2 | 258 | |
Helmut64 | 0:a3ea811f80f2 | 259 | void USBHAL::EP0read(void) { |
Helmut64 | 0:a3ea811f80f2 | 260 | if (ctrl_xfer == CTRL_XFER_READY) { |
Helmut64 | 0:a3ea811f80f2 | 261 | // Transfer is done so ignore call |
Helmut64 | 0:a3ea811f80f2 | 262 | return; |
Helmut64 | 0:a3ea811f80f2 | 263 | } |
Helmut64 | 0:a3ea811f80f2 | 264 | if (ctrl_xfer == CTRL_XFER_IN) { |
Helmut64 | 0:a3ea811f80f2 | 265 | ctrl_xfer = CTRL_XFER_READY; |
Helmut64 | 0:a3ea811f80f2 | 266 | // Control transfer with a data IN stage. |
Helmut64 | 0:a3ea811f80f2 | 267 | // The next packet received will be the status packet - an OUT packet using DATA1 |
Helmut64 | 0:a3ea811f80f2 | 268 | // |
Helmut64 | 0:a3ea811f80f2 | 269 | // PROBLEM: |
Helmut64 | 0:a3ea811f80f2 | 270 | // If a Setup packet is received after status packet of |
Helmut64 | 0:a3ea811f80f2 | 271 | // a Control In transfer has been received in the RX buffer |
Helmut64 | 0:a3ea811f80f2 | 272 | // but before the processor has had a chance the prepare |
Helmut64 | 0:a3ea811f80f2 | 273 | // this buffer for the Setup packet, the Setup packet |
Helmut64 | 0:a3ea811f80f2 | 274 | // will be dropped. |
Helmut64 | 0:a3ea811f80f2 | 275 | // |
Helmut64 | 0:a3ea811f80f2 | 276 | // WORKAROUND: |
Helmut64 | 0:a3ea811f80f2 | 277 | // Set data toggle to DATA0 so if the status stage of a |
Helmut64 | 0:a3ea811f80f2 | 278 | // Control In transfer arrives it will be ACKed by hardware |
Helmut64 | 0:a3ea811f80f2 | 279 | // but will be discarded without filling the RX buffer. |
Helmut64 | 0:a3ea811f80f2 | 280 | // This allows a subsequent SETUP packet to be stored |
Helmut64 | 0:a3ea811f80f2 | 281 | // without any processor intervention. |
Helmut64 | 0:a3ea811f80f2 | 282 | Data1 &= ~1UL; // set DATA0 |
Helmut64 | 0:a3ea811f80f2 | 283 | } |
Helmut64 | 0:a3ea811f80f2 | 284 | endpointRead(EP0OUT, MAX_PACKET_SIZE_EP0); |
Helmut64 | 0:a3ea811f80f2 | 285 | } |
Helmut64 | 0:a3ea811f80f2 | 286 | |
Helmut64 | 0:a3ea811f80f2 | 287 | uint32_t USBHAL::EP0getReadResult(uint8_t *buffer) { |
Helmut64 | 0:a3ea811f80f2 | 288 | uint32_t sz; |
Helmut64 | 0:a3ea811f80f2 | 289 | endpointReadResult(EP0OUT, buffer, &sz); |
Helmut64 | 0:a3ea811f80f2 | 290 | return sz; |
Helmut64 | 0:a3ea811f80f2 | 291 | } |
Helmut64 | 0:a3ea811f80f2 | 292 | |
Helmut64 | 0:a3ea811f80f2 | 293 | void USBHAL::EP0write(uint8_t *buffer, uint32_t size) { |
Helmut64 | 0:a3ea811f80f2 | 294 | if (ctrl_xfer == CTRL_XFER_READY) { |
Helmut64 | 0:a3ea811f80f2 | 295 | // Transfer is done so ignore call |
Helmut64 | 0:a3ea811f80f2 | 296 | return; |
Helmut64 | 0:a3ea811f80f2 | 297 | } |
Helmut64 | 0:a3ea811f80f2 | 298 | if ((ctrl_xfer == CTRL_XFER_NONE) || (ctrl_xfer == CTRL_XFER_OUT)) { |
Helmut64 | 0:a3ea811f80f2 | 299 | // Prepare for next setup packet |
Helmut64 | 0:a3ea811f80f2 | 300 | endpointRead(EP0OUT, MAX_PACKET_SIZE_EP0); |
Helmut64 | 0:a3ea811f80f2 | 301 | ctrl_xfer = CTRL_XFER_READY; |
Helmut64 | 0:a3ea811f80f2 | 302 | } |
Helmut64 | 0:a3ea811f80f2 | 303 | endpointWrite(EP0IN, buffer, size); |
Helmut64 | 0:a3ea811f80f2 | 304 | } |
Helmut64 | 0:a3ea811f80f2 | 305 | |
Helmut64 | 0:a3ea811f80f2 | 306 | void USBHAL::EP0getWriteResult(void) { |
Helmut64 | 0:a3ea811f80f2 | 307 | } |
Helmut64 | 0:a3ea811f80f2 | 308 | |
Helmut64 | 0:a3ea811f80f2 | 309 | void USBHAL::EP0stall(void) { |
Helmut64 | 0:a3ea811f80f2 | 310 | if (ctrl_xfer == CTRL_XFER_READY) { |
Helmut64 | 0:a3ea811f80f2 | 311 | // Transfer is done so ignore call |
Helmut64 | 0:a3ea811f80f2 | 312 | return; |
Helmut64 | 0:a3ea811f80f2 | 313 | } |
Helmut64 | 0:a3ea811f80f2 | 314 | ctrl_xfer = CTRL_XFER_READY; |
Helmut64 | 0:a3ea811f80f2 | 315 | core_util_critical_section_enter(); |
Helmut64 | 0:a3ea811f80f2 | 316 | stallEndpoint(EP0OUT); |
Helmut64 | 0:a3ea811f80f2 | 317 | // Prepare for next setup packet |
Helmut64 | 0:a3ea811f80f2 | 318 | // Note - time between stalling and setting up the endpoint |
Helmut64 | 0:a3ea811f80f2 | 319 | // must be kept to a minimum to prevent a dropped SETUP |
Helmut64 | 0:a3ea811f80f2 | 320 | // packet. |
Helmut64 | 0:a3ea811f80f2 | 321 | endpointRead(EP0OUT, MAX_PACKET_SIZE_EP0); |
Helmut64 | 0:a3ea811f80f2 | 322 | core_util_critical_section_exit(); |
Helmut64 | 0:a3ea811f80f2 | 323 | } |
Helmut64 | 0:a3ea811f80f2 | 324 | |
Helmut64 | 0:a3ea811f80f2 | 325 | EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize) { |
Helmut64 | 0:a3ea811f80f2 | 326 | uint8_t log_endpoint = PHY_TO_LOG(endpoint); |
Helmut64 | 0:a3ea811f80f2 | 327 | |
Helmut64 | 0:a3ea811f80f2 | 328 | uint32_t idx = EP_BDT_IDX(log_endpoint, RX, 0); |
Helmut64 | 0:a3ea811f80f2 | 329 | bdt[idx].byte_count = maximumSize; |
Helmut64 | 0:a3ea811f80f2 | 330 | if ((Data1 >> endpoint) & 1) { |
Helmut64 | 0:a3ea811f80f2 | 331 | bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK | BD_DATA01_MASK; |
Helmut64 | 0:a3ea811f80f2 | 332 | } |
Helmut64 | 0:a3ea811f80f2 | 333 | else { |
Helmut64 | 0:a3ea811f80f2 | 334 | bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK; |
Helmut64 | 0:a3ea811f80f2 | 335 | } |
Helmut64 | 0:a3ea811f80f2 | 336 | |
Helmut64 | 0:a3ea811f80f2 | 337 | Data1 ^= (1 << endpoint); |
Helmut64 | 0:a3ea811f80f2 | 338 | return EP_PENDING; |
Helmut64 | 0:a3ea811f80f2 | 339 | } |
Helmut64 | 0:a3ea811f80f2 | 340 | |
Helmut64 | 0:a3ea811f80f2 | 341 | EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t * buffer, uint32_t *bytesRead) { |
Helmut64 | 0:a3ea811f80f2 | 342 | uint32_t n, sz, idx, setup = 0; |
Helmut64 | 0:a3ea811f80f2 | 343 | uint8_t not_iso; |
Helmut64 | 0:a3ea811f80f2 | 344 | uint8_t * ep_buf; |
Helmut64 | 0:a3ea811f80f2 | 345 | |
Helmut64 | 0:a3ea811f80f2 | 346 | uint32_t log_endpoint = PHY_TO_LOG(endpoint); |
Helmut64 | 0:a3ea811f80f2 | 347 | |
Helmut64 | 0:a3ea811f80f2 | 348 | if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) { |
Helmut64 | 0:a3ea811f80f2 | 349 | return EP_INVALID; |
Helmut64 | 0:a3ea811f80f2 | 350 | } |
Helmut64 | 0:a3ea811f80f2 | 351 | |
Helmut64 | 0:a3ea811f80f2 | 352 | // if read on a IN endpoint -> error |
Helmut64 | 0:a3ea811f80f2 | 353 | if (IN_EP(endpoint)) { |
Helmut64 | 0:a3ea811f80f2 | 354 | return EP_INVALID; |
Helmut64 | 0:a3ea811f80f2 | 355 | } |
Helmut64 | 0:a3ea811f80f2 | 356 | |
Helmut64 | 0:a3ea811f80f2 | 357 | idx = EP_BDT_IDX(log_endpoint, RX, 0); |
Helmut64 | 0:a3ea811f80f2 | 358 | sz = bdt[idx].byte_count; |
Helmut64 | 0:a3ea811f80f2 | 359 | not_iso = USB0->ENDPOINT[log_endpoint].ENDPT & USB_ENDPT_EPHSHK_MASK; |
Helmut64 | 0:a3ea811f80f2 | 360 | |
Helmut64 | 0:a3ea811f80f2 | 361 | //for isochronous endpoint, we don't wait an interrupt |
Helmut64 | 0:a3ea811f80f2 | 362 | if ((log_endpoint != 0) && not_iso && !(epComplete & EP(endpoint))) { |
Helmut64 | 0:a3ea811f80f2 | 363 | return EP_PENDING; |
Helmut64 | 0:a3ea811f80f2 | 364 | } |
Helmut64 | 0:a3ea811f80f2 | 365 | |
Helmut64 | 0:a3ea811f80f2 | 366 | if ((log_endpoint == 0) && (TOK_PID(idx) == SETUP_TOKEN)) { |
Helmut64 | 0:a3ea811f80f2 | 367 | setup = 1; |
Helmut64 | 0:a3ea811f80f2 | 368 | } |
Helmut64 | 0:a3ea811f80f2 | 369 | |
Helmut64 | 0:a3ea811f80f2 | 370 | ep_buf = endpoint_buffer[idx]; |
Helmut64 | 0:a3ea811f80f2 | 371 | |
Helmut64 | 0:a3ea811f80f2 | 372 | for (n = 0; n < sz; n++) { |
Helmut64 | 0:a3ea811f80f2 | 373 | buffer[n] = ep_buf[n]; |
Helmut64 | 0:a3ea811f80f2 | 374 | } |
Helmut64 | 0:a3ea811f80f2 | 375 | |
Helmut64 | 0:a3ea811f80f2 | 376 | if (setup) { |
Helmut64 | 0:a3ea811f80f2 | 377 | // Record the setup type |
Helmut64 | 0:a3ea811f80f2 | 378 | if (buffer[6] == 0) { |
Helmut64 | 0:a3ea811f80f2 | 379 | ctrl_xfer = CTRL_XFER_NONE; |
Helmut64 | 0:a3ea811f80f2 | 380 | } else { |
Helmut64 | 0:a3ea811f80f2 | 381 | uint8_t in_xfer = (buffer[0] >> 7) & 1; |
Helmut64 | 0:a3ea811f80f2 | 382 | ctrl_xfer = in_xfer ? CTRL_XFER_IN : CTRL_XFER_OUT; |
Helmut64 | 0:a3ea811f80f2 | 383 | } |
Helmut64 | 0:a3ea811f80f2 | 384 | } |
Helmut64 | 0:a3ea811f80f2 | 385 | |
Helmut64 | 0:a3ea811f80f2 | 386 | USB0->CTL &= ~USB_CTL_TXSUSPENDTOKENBUSY_MASK; |
Helmut64 | 0:a3ea811f80f2 | 387 | *bytesRead = sz; |
Helmut64 | 0:a3ea811f80f2 | 388 | |
Helmut64 | 0:a3ea811f80f2 | 389 | epComplete &= ~EP(endpoint); |
Helmut64 | 0:a3ea811f80f2 | 390 | return EP_COMPLETED; |
Helmut64 | 0:a3ea811f80f2 | 391 | } |
Helmut64 | 0:a3ea811f80f2 | 392 | |
Helmut64 | 0:a3ea811f80f2 | 393 | EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size) { |
Helmut64 | 0:a3ea811f80f2 | 394 | uint32_t idx, n; |
Helmut64 | 0:a3ea811f80f2 | 395 | uint8_t * ep_buf; |
Helmut64 | 0:a3ea811f80f2 | 396 | |
Helmut64 | 0:a3ea811f80f2 | 397 | if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) { |
Helmut64 | 0:a3ea811f80f2 | 398 | return EP_INVALID; |
Helmut64 | 0:a3ea811f80f2 | 399 | } |
Helmut64 | 0:a3ea811f80f2 | 400 | |
Helmut64 | 0:a3ea811f80f2 | 401 | // if write on a OUT endpoint -> error |
Helmut64 | 0:a3ea811f80f2 | 402 | if (OUT_EP(endpoint)) { |
Helmut64 | 0:a3ea811f80f2 | 403 | return EP_INVALID; |
Helmut64 | 0:a3ea811f80f2 | 404 | } |
Helmut64 | 0:a3ea811f80f2 | 405 | |
Helmut64 | 0:a3ea811f80f2 | 406 | idx = EP_BDT_IDX(PHY_TO_LOG(endpoint), TX, 0); |
Helmut64 | 0:a3ea811f80f2 | 407 | bdt[idx].byte_count = size; |
Helmut64 | 0:a3ea811f80f2 | 408 | |
Helmut64 | 0:a3ea811f80f2 | 409 | ep_buf = endpoint_buffer[idx]; |
Helmut64 | 0:a3ea811f80f2 | 410 | |
Helmut64 | 0:a3ea811f80f2 | 411 | for (n = 0; n < size; n++) { |
Helmut64 | 0:a3ea811f80f2 | 412 | ep_buf[n] = data[n]; |
Helmut64 | 0:a3ea811f80f2 | 413 | } |
Helmut64 | 0:a3ea811f80f2 | 414 | |
Helmut64 | 0:a3ea811f80f2 | 415 | if ((Data1 >> endpoint) & 1) { |
Helmut64 | 0:a3ea811f80f2 | 416 | bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK | BD_DATA01_MASK; |
Helmut64 | 0:a3ea811f80f2 | 417 | } else { |
Helmut64 | 0:a3ea811f80f2 | 418 | bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK; |
Helmut64 | 0:a3ea811f80f2 | 419 | } |
Helmut64 | 0:a3ea811f80f2 | 420 | |
Helmut64 | 0:a3ea811f80f2 | 421 | Data1 ^= (1 << endpoint); |
Helmut64 | 0:a3ea811f80f2 | 422 | |
Helmut64 | 0:a3ea811f80f2 | 423 | return EP_PENDING; |
Helmut64 | 0:a3ea811f80f2 | 424 | } |
Helmut64 | 0:a3ea811f80f2 | 425 | |
Helmut64 | 0:a3ea811f80f2 | 426 | EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint) { |
Helmut64 | 0:a3ea811f80f2 | 427 | if (epComplete & EP(endpoint)) { |
Helmut64 | 0:a3ea811f80f2 | 428 | epComplete &= ~EP(endpoint); |
Helmut64 | 0:a3ea811f80f2 | 429 | return EP_COMPLETED; |
Helmut64 | 0:a3ea811f80f2 | 430 | } |
Helmut64 | 0:a3ea811f80f2 | 431 | |
Helmut64 | 0:a3ea811f80f2 | 432 | return EP_PENDING; |
Helmut64 | 0:a3ea811f80f2 | 433 | } |
Helmut64 | 0:a3ea811f80f2 | 434 | |
Helmut64 | 0:a3ea811f80f2 | 435 | void USBHAL::stallEndpoint(uint8_t endpoint) { |
Helmut64 | 0:a3ea811f80f2 | 436 | USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT |= USB_ENDPT_EPSTALL_MASK; |
Helmut64 | 0:a3ea811f80f2 | 437 | } |
Helmut64 | 0:a3ea811f80f2 | 438 | |
Helmut64 | 0:a3ea811f80f2 | 439 | void USBHAL::unstallEndpoint(uint8_t endpoint) { |
Helmut64 | 0:a3ea811f80f2 | 440 | USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT &= ~USB_ENDPT_EPSTALL_MASK; |
Helmut64 | 0:a3ea811f80f2 | 441 | } |
Helmut64 | 0:a3ea811f80f2 | 442 | |
Helmut64 | 0:a3ea811f80f2 | 443 | bool USBHAL::getEndpointStallState(uint8_t endpoint) { |
Helmut64 | 0:a3ea811f80f2 | 444 | uint8_t stall = (USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT & USB_ENDPT_EPSTALL_MASK); |
Helmut64 | 0:a3ea811f80f2 | 445 | return (stall) ? true : false; |
Helmut64 | 0:a3ea811f80f2 | 446 | } |
Helmut64 | 0:a3ea811f80f2 | 447 | |
Helmut64 | 0:a3ea811f80f2 | 448 | void USBHAL::remoteWakeup(void) { |
Helmut64 | 0:a3ea811f80f2 | 449 | // [TODO] |
Helmut64 | 0:a3ea811f80f2 | 450 | } |
Helmut64 | 0:a3ea811f80f2 | 451 | |
Helmut64 | 0:a3ea811f80f2 | 452 | |
Helmut64 | 0:a3ea811f80f2 | 453 | void USBHAL::_usbisr(void) { |
Helmut64 | 0:a3ea811f80f2 | 454 | instance->usbisr(); |
Helmut64 | 0:a3ea811f80f2 | 455 | } |
Helmut64 | 0:a3ea811f80f2 | 456 | |
Helmut64 | 0:a3ea811f80f2 | 457 | |
Helmut64 | 0:a3ea811f80f2 | 458 | void USBHAL::usbisr(void) { |
Helmut64 | 0:a3ea811f80f2 | 459 | uint8_t i; |
Helmut64 | 0:a3ea811f80f2 | 460 | uint8_t istat = USB0->ISTAT; |
Helmut64 | 0:a3ea811f80f2 | 461 | |
Helmut64 | 0:a3ea811f80f2 | 462 | // reset interrupt |
Helmut64 | 0:a3ea811f80f2 | 463 | if (istat & USB_ISTAT_USBRST_MASK) { |
Helmut64 | 0:a3ea811f80f2 | 464 | // disable all endpt |
Helmut64 | 0:a3ea811f80f2 | 465 | for(i = 0; i < 16; i++) { |
Helmut64 | 0:a3ea811f80f2 | 466 | USB0->ENDPOINT[i].ENDPT = 0x00; |
Helmut64 | 0:a3ea811f80f2 | 467 | } |
Helmut64 | 0:a3ea811f80f2 | 468 | |
Helmut64 | 0:a3ea811f80f2 | 469 | // enable control endpoint |
Helmut64 | 0:a3ea811f80f2 | 470 | realiseEndpoint(EP0OUT, MAX_PACKET_SIZE_EP0, 0); |
Helmut64 | 0:a3ea811f80f2 | 471 | realiseEndpoint(EP0IN, MAX_PACKET_SIZE_EP0, 0); |
Helmut64 | 0:a3ea811f80f2 | 472 | |
Helmut64 | 0:a3ea811f80f2 | 473 | Data1 = 0x55555555; |
Helmut64 | 0:a3ea811f80f2 | 474 | USB0->CTL |= USB_CTL_ODDRST_MASK; |
Helmut64 | 0:a3ea811f80f2 | 475 | |
Helmut64 | 0:a3ea811f80f2 | 476 | USB0->ISTAT = 0xFF; // clear all interrupt status flags |
Helmut64 | 0:a3ea811f80f2 | 477 | USB0->ERRSTAT = 0xFF; // clear all error flags |
Helmut64 | 0:a3ea811f80f2 | 478 | USB0->ERREN = 0xFF; // enable error interrupt sources |
Helmut64 | 0:a3ea811f80f2 | 479 | USB0->ADDR = 0x00; // set default address |
Helmut64 | 0:a3ea811f80f2 | 480 | |
Helmut64 | 0:a3ea811f80f2 | 481 | // reset bus for USBDevice layer |
Helmut64 | 0:a3ea811f80f2 | 482 | busReset(); |
Helmut64 | 0:a3ea811f80f2 | 483 | |
Helmut64 | 0:a3ea811f80f2 | 484 | return; |
Helmut64 | 0:a3ea811f80f2 | 485 | } |
Helmut64 | 0:a3ea811f80f2 | 486 | |
Helmut64 | 0:a3ea811f80f2 | 487 | // resume interrupt |
Helmut64 | 0:a3ea811f80f2 | 488 | if (istat & USB_ISTAT_RESUME_MASK) { |
Helmut64 | 0:a3ea811f80f2 | 489 | USB0->ISTAT = USB_ISTAT_RESUME_MASK; |
Helmut64 | 0:a3ea811f80f2 | 490 | } |
Helmut64 | 0:a3ea811f80f2 | 491 | |
Helmut64 | 0:a3ea811f80f2 | 492 | // SOF interrupt |
Helmut64 | 0:a3ea811f80f2 | 493 | if (istat & USB_ISTAT_SOFTOK_MASK) { |
Helmut64 | 0:a3ea811f80f2 | 494 | USB0->ISTAT = USB_ISTAT_SOFTOK_MASK; |
Helmut64 | 0:a3ea811f80f2 | 495 | // SOF event, read frame number |
Helmut64 | 0:a3ea811f80f2 | 496 | SOF(frameNumber()); |
Helmut64 | 0:a3ea811f80f2 | 497 | } |
Helmut64 | 0:a3ea811f80f2 | 498 | |
Helmut64 | 0:a3ea811f80f2 | 499 | // stall interrupt |
Helmut64 | 0:a3ea811f80f2 | 500 | if (istat & 1<<7) { |
Helmut64 | 0:a3ea811f80f2 | 501 | if (USB0->ENDPOINT[0].ENDPT & USB_ENDPT_EPSTALL_MASK) |
Helmut64 | 0:a3ea811f80f2 | 502 | USB0->ENDPOINT[0].ENDPT &= ~USB_ENDPT_EPSTALL_MASK; |
Helmut64 | 0:a3ea811f80f2 | 503 | USB0->ISTAT = USB_ISTAT_STALL_MASK; |
Helmut64 | 0:a3ea811f80f2 | 504 | } |
Helmut64 | 0:a3ea811f80f2 | 505 | |
Helmut64 | 0:a3ea811f80f2 | 506 | // token interrupt |
Helmut64 | 0:a3ea811f80f2 | 507 | if (istat & 1<<3) { |
Helmut64 | 0:a3ea811f80f2 | 508 | uint32_t num = (USB0->STAT >> 4) & 0x0F; |
Helmut64 | 0:a3ea811f80f2 | 509 | uint32_t dir = (USB0->STAT >> 3) & 0x01; |
Helmut64 | 0:a3ea811f80f2 | 510 | uint32_t ev_odd = (USB0->STAT >> 2) & 0x01; |
Helmut64 | 0:a3ea811f80f2 | 511 | int endpoint = (num << 1) | dir; |
Helmut64 | 0:a3ea811f80f2 | 512 | |
Helmut64 | 0:a3ea811f80f2 | 513 | // setup packet |
Helmut64 | 0:a3ea811f80f2 | 514 | if ((num == 0) && (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == SETUP_TOKEN)) { |
Helmut64 | 0:a3ea811f80f2 | 515 | Data1 |= 0x02 | 0x01; // set DATA1 for TX and RX |
Helmut64 | 0:a3ea811f80f2 | 516 | bdt[EP_BDT_IDX(0, TX, EVEN)].info &= ~BD_OWN_MASK; |
Helmut64 | 0:a3ea811f80f2 | 517 | bdt[EP_BDT_IDX(0, TX, ODD)].info &= ~BD_OWN_MASK; |
Helmut64 | 0:a3ea811f80f2 | 518 | |
Helmut64 | 0:a3ea811f80f2 | 519 | // EP0 SETUP event (SETUP data received) |
Helmut64 | 0:a3ea811f80f2 | 520 | EP0setupCallback(); |
Helmut64 | 0:a3ea811f80f2 | 521 | |
Helmut64 | 0:a3ea811f80f2 | 522 | } else { |
Helmut64 | 0:a3ea811f80f2 | 523 | // OUT packet |
Helmut64 | 0:a3ea811f80f2 | 524 | if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == OUT_TOKEN) { |
Helmut64 | 0:a3ea811f80f2 | 525 | if (num == 0) |
Helmut64 | 0:a3ea811f80f2 | 526 | EP0out(); |
Helmut64 | 0:a3ea811f80f2 | 527 | else { |
Helmut64 | 0:a3ea811f80f2 | 528 | epComplete |= EP(endpoint); |
Helmut64 | 0:a3ea811f80f2 | 529 | if ((instance->*(epCallback[endpoint - 2]))()) { |
Helmut64 | 0:a3ea811f80f2 | 530 | epComplete &= ~EP(endpoint); |
Helmut64 | 0:a3ea811f80f2 | 531 | } |
Helmut64 | 0:a3ea811f80f2 | 532 | } |
Helmut64 | 0:a3ea811f80f2 | 533 | } |
Helmut64 | 0:a3ea811f80f2 | 534 | |
Helmut64 | 0:a3ea811f80f2 | 535 | // IN packet |
Helmut64 | 0:a3ea811f80f2 | 536 | if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == IN_TOKEN) { |
Helmut64 | 0:a3ea811f80f2 | 537 | if (num == 0) { |
Helmut64 | 0:a3ea811f80f2 | 538 | EP0in(); |
Helmut64 | 0:a3ea811f80f2 | 539 | if (set_addr == 1) { |
Helmut64 | 0:a3ea811f80f2 | 540 | USB0->ADDR = addr & 0x7F; |
Helmut64 | 0:a3ea811f80f2 | 541 | set_addr = 0; |
Helmut64 | 0:a3ea811f80f2 | 542 | } |
Helmut64 | 0:a3ea811f80f2 | 543 | } |
Helmut64 | 0:a3ea811f80f2 | 544 | else { |
Helmut64 | 0:a3ea811f80f2 | 545 | epComplete |= EP(endpoint); |
Helmut64 | 0:a3ea811f80f2 | 546 | if ((instance->*(epCallback[endpoint - 2]))()) { |
Helmut64 | 0:a3ea811f80f2 | 547 | epComplete &= ~EP(endpoint); |
Helmut64 | 0:a3ea811f80f2 | 548 | } |
Helmut64 | 0:a3ea811f80f2 | 549 | } |
Helmut64 | 0:a3ea811f80f2 | 550 | } |
Helmut64 | 0:a3ea811f80f2 | 551 | } |
Helmut64 | 0:a3ea811f80f2 | 552 | |
Helmut64 | 0:a3ea811f80f2 | 553 | USB0->ISTAT = USB_ISTAT_TOKDNE_MASK; |
Helmut64 | 0:a3ea811f80f2 | 554 | } |
Helmut64 | 0:a3ea811f80f2 | 555 | |
Helmut64 | 0:a3ea811f80f2 | 556 | // sleep interrupt |
Helmut64 | 0:a3ea811f80f2 | 557 | if (istat & 1<<4) { |
Helmut64 | 0:a3ea811f80f2 | 558 | USB0->ISTAT = USB_ISTAT_SLEEP_MASK; |
Helmut64 | 0:a3ea811f80f2 | 559 | } |
Helmut64 | 0:a3ea811f80f2 | 560 | |
Helmut64 | 0:a3ea811f80f2 | 561 | // error interrupt |
Helmut64 | 0:a3ea811f80f2 | 562 | if (istat & USB_ISTAT_ERROR_MASK) { |
Helmut64 | 0:a3ea811f80f2 | 563 | USB0->ERRSTAT = 0xFF; |
Helmut64 | 0:a3ea811f80f2 | 564 | USB0->ISTAT = USB_ISTAT_ERROR_MASK; |
Helmut64 | 0:a3ea811f80f2 | 565 | } |
Helmut64 | 0:a3ea811f80f2 | 566 | } |
Helmut64 | 0:a3ea811f80f2 | 567 | |
Helmut64 | 0:a3ea811f80f2 | 568 | |
Helmut64 | 0:a3ea811f80f2 | 569 | #endif |