Witek Ewert
USBDevice compatible with frdmk22f-usbhid-4axis
Dependents: frdmk22f-usbhid-4axis
Diff: USBDevice/USBHAL_KL25Z.cpp
- Revision:
- 71:53949e6131f6
- Parent:
- 70:2c525a50f1b6
- Child:
- 72:092f8c67730c
--- a/USBDevice/USBHAL_KL25Z.cpp Thu Jul 20 10:14:36 2017 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,507 +0,0 @@
-/* Copyright (c) 2010-2011 mbed.org, MIT License
-*
-* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
-* and associated documentation files (the "Software"), to deal in the Software without
-* restriction, including without limitation the rights to use, copy, modify, merge, publish,
-* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
-* Software is furnished to do so, subject to the following conditions:
-*
-* The above copyright notice and this permission notice shall be included in all copies or
-* substantial portions of the Software.
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
-* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#if defined(TARGET_KL25Z) | defined(TARGET_KL43Z) | defined(TARGET_KL46Z) | defined(TARGET_K20D50M) | defined(TARGET_K64F) | defined(TARGET_K22F) | defined(TARGET_TEENSY3_1)
-
-#if defined(TARGET_KSDK2_MCUS)
-#include "fsl_common.h"
-#endif
-#include "USBHAL.h"
-
-USBHAL * USBHAL::instance;
-
-static volatile int epComplete = 0;
-
-// Convert physical endpoint number to register bit
-#define EP(endpoint) (1<<(endpoint))
-
-// Convert physical to logical
-#define PHY_TO_LOG(endpoint) ((endpoint)>>1)
-
-// Get endpoint direction
-#define IN_EP(endpoint) ((endpoint) & 1U ? true : false)
-#define OUT_EP(endpoint) ((endpoint) & 1U ? false : true)
-
-#define BD_OWN_MASK (1<<7)
-#define BD_DATA01_MASK (1<<6)
-#define BD_KEEP_MASK (1<<5)
-#define BD_NINC_MASK (1<<4)
-#define BD_DTS_MASK (1<<3)
-#define BD_STALL_MASK (1<<2)
-
-#define TX 1
-#define RX 0
-#define ODD 0
-#define EVEN 1
-// this macro waits a physical endpoint number
-#define EP_BDT_IDX(ep, dir, odd) (((ep * 4) + (2 * dir) + (1 * odd)))
-
-#define SETUP_TOKEN 0x0D
-#define IN_TOKEN 0x09
-#define OUT_TOKEN 0x01
-#define TOK_PID(idx) ((bdt[idx].info >> 2) & 0x0F)
-
-// for each endpt: 8 bytes
-typedef struct BDT {
- uint8_t info; // BD[0:7]
- uint8_t dummy; // RSVD: BD[8:15]
- uint16_t byte_count; // BD[16:32]
- uint32_t address; // Addr
-} BDT;
-
-// there are:
-// * 4 bidirectionnal endpt -> 8 physical endpt
-// * as there are ODD and EVEN buffer -> 8*2 bdt
-MBED_ALIGN(512) BDT bdt[NUMBER_OF_PHYSICAL_ENDPOINTS * 2]; // 512 bytes aligned!
-
-uint8_t * endpoint_buffer[NUMBER_OF_PHYSICAL_ENDPOINTS * 2];
-
-static uint8_t set_addr = 0;
-static uint8_t addr = 0;
-
-static uint32_t Data1 = 0x55555555;
-
-static uint32_t frameNumber() {
- return((USB0->FRMNUML | (USB0->FRMNUMH << 8)) & 0x07FF);
-}
-
-uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer) {
- return 0;
-}
-
-USBHAL::USBHAL(void) {
- // Disable IRQ
- NVIC_DisableIRQ(USB0_IRQn);
-
-#if (defined(FSL_FEATURE_SOC_MPU_COUNT) && (FSL_FEATURE_SOC_MPU_COUNT > 0U))
- MPU->CESR=0;
-#endif
- // fill in callback array
- epCallback[0] = &USBHAL::EP1_OUT_callback;
- epCallback[1] = &USBHAL::EP1_IN_callback;
- epCallback[2] = &USBHAL::EP2_OUT_callback;
- epCallback[3] = &USBHAL::EP2_IN_callback;
- epCallback[4] = &USBHAL::EP3_OUT_callback;
- epCallback[5] = &USBHAL::EP3_IN_callback;
- epCallback[6] = &USBHAL::EP4_OUT_callback;
- epCallback[7] = &USBHAL::EP4_IN_callback;
-
-#if defined(TARGET_KL43Z) || defined(TARGET_K22F) || defined(TARGET_K64F)
- // enable USBFS clock
- CLOCK_EnableUsbfs0Clock(kCLOCK_UsbSrcIrc48M, 48000000U);
-#else
- // choose usb src as PLL
- SIM->SOPT2 &= ~SIM_SOPT2_PLLFLLSEL_MASK;
- SIM->SOPT2 |= (SIM_SOPT2_USBSRC_MASK | (1 << SIM_SOPT2_PLLFLLSEL_SHIFT));
-
- // enable OTG clock
- SIM->SCGC4 |= SIM_SCGC4_USBOTG_MASK;
-#endif
-
- // Attach IRQ
- instance = this;
- NVIC_SetVector(USB0_IRQn, (uint32_t)&_usbisr);
- NVIC_EnableIRQ(USB0_IRQn);
-
- // USB Module Configuration
- // Set BDT Base Register
- USB0->BDTPAGE1 = (uint8_t)((uint32_t)bdt>>8);
- USB0->BDTPAGE2 = (uint8_t)((uint32_t)bdt>>16);
- USB0->BDTPAGE3 = (uint8_t)((uint32_t)bdt>>24);
-
- // Clear interrupt flag
- USB0->ISTAT = 0xff;
-
- // USB Interrupt Enablers
- USB0->INTEN |= USB_INTEN_TOKDNEEN_MASK |
- USB_INTEN_SOFTOKEN_MASK |
- USB_INTEN_ERROREN_MASK |
- USB_INTEN_USBRSTEN_MASK;
-
- // Disable weak pull downs
- USB0->USBCTRL &= ~(USB_USBCTRL_PDE_MASK | USB_USBCTRL_SUSP_MASK);
-
- USB0->USBTRC0 |= 0x40;
-
- /* Allocate control endpoint buffers */
- endpoint_buffer[EP_BDT_IDX(0, TX, ODD)] = (uint8_t *)malloc(MAX_PACKET_SIZE_EP0);
- endpoint_buffer[EP_BDT_IDX(0, RX, ODD)] = (uint8_t *)malloc(MAX_PACKET_SIZE_EP0);
-}
-
-USBHAL::~USBHAL(void) { }
-
-void USBHAL::connect(void) {
- // enable USB
- USB0->CTL |= USB_CTL_USBENSOFEN_MASK;
- // Pull up enable
- USB0->CONTROL |= USB_CONTROL_DPPULLUPNONOTG_MASK;
-
- // Allocate endpoint buffers; do allocate control endpoint buffers
- for (int i = 4; i < (NUMBER_OF_PHYSICAL_ENDPOINTS * 2); i++) {
- if ((i == EPISO_OUT) || (i == EPISO_IN)) {
- endpoint_buffer[i] = (uint8_t *)malloc(MAX_PACKET_SIZE_EPISO);
- } else {
- endpoint_buffer[i] = (uint8_t *)malloc(MAX_PACKET_SIZE_EPBULK);
- }
- }
-}
-
-void USBHAL::disconnect(void) {
- // disable USB
- USB0->CTL &= ~USB_CTL_USBENSOFEN_MASK;
- // Pull up disable
- USB0->CONTROL &= ~USB_CONTROL_DPPULLUPNONOTG_MASK;
-
- //Free buffers if required; do not free the control endpoint buffers
- for (int i = 4; i < (NUMBER_OF_PHYSICAL_ENDPOINTS * 2); i++) {
- free(endpoint_buffer[i]);
- endpoint_buffer[i] = NULL;
- }
-}
-
-void USBHAL::configureDevice(void) {
- // not needed
-}
-
-void USBHAL::unconfigureDevice(void) {
- // not needed
-}
-
-void USBHAL::setAddress(uint8_t address) {
- // we don't set the address now otherwise the usb controller does not ack
- // we set a flag instead
- // see usbisr when an IN token is received
- set_addr = 1;
- addr = address;
-}
-
-bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t flags) {
- uint32_t handshake_flag = 0;
- uint8_t * buf;
-
- if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
- return false;
- }
-
- uint32_t log_endpoint = PHY_TO_LOG(endpoint);
-
- if ((flags & ISOCHRONOUS) == 0) {
- handshake_flag = USB_ENDPT_EPHSHK_MASK;
- }
-
- if (IN_EP(endpoint)) {
- buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, TX, ODD)][0];
- } else {
- buf = &endpoint_buffer[EP_BDT_IDX(log_endpoint, RX, ODD)][0];
- }
-
- // IN endpt -> device to host (TX)
- if (IN_EP(endpoint)) {
- USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag | // ep handshaking (not if iso endpoint)
- USB_ENDPT_EPTXEN_MASK; // en TX (IN) tran
- bdt[EP_BDT_IDX(log_endpoint, TX, ODD )].address = (uint32_t) buf;
- bdt[EP_BDT_IDX(log_endpoint, TX, EVEN)].address = 0;
- }
- // OUT endpt -> host to device (RX)
- else {
- USB0->ENDPOINT[log_endpoint].ENDPT |= handshake_flag | // ep handshaking (not if iso endpoint)
- USB_ENDPT_EPRXEN_MASK; // en RX (OUT) tran.
- bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].byte_count = maxPacket;
- bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].address = (uint32_t) buf;
- bdt[EP_BDT_IDX(log_endpoint, RX, ODD )].info = BD_OWN_MASK | BD_DTS_MASK;
- bdt[EP_BDT_IDX(log_endpoint, RX, EVEN)].info = 0;
- }
-
- Data1 |= (1 << endpoint);
-
- return true;
-}
-
-// read setup packet
-void USBHAL::EP0setup(uint8_t *buffer) {
- uint32_t sz;
- endpointReadResult(EP0OUT, buffer, &sz);
-}
-
-void USBHAL::EP0readStage(void) {
- Data1 &= ~1UL; // set DATA0
- bdt[0].info = (BD_DTS_MASK | BD_OWN_MASK);
-}
-
-void USBHAL::EP0read(void) {
- uint32_t idx = EP_BDT_IDX(PHY_TO_LOG(EP0OUT), RX, 0);
- bdt[idx].byte_count = MAX_PACKET_SIZE_EP0;
-}
-
-uint32_t USBHAL::EP0getReadResult(uint8_t *buffer) {
- uint32_t sz;
- endpointReadResult(EP0OUT, buffer, &sz);
- return sz;
-}
-
-void USBHAL::EP0write(uint8_t *buffer, uint32_t size) {
- endpointWrite(EP0IN, buffer, size);
-}
-
-void USBHAL::EP0getWriteResult(void) {
-}
-
-void USBHAL::EP0stall(void) {
- stallEndpoint(EP0OUT);
-}
-
-EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize) {
- endpoint = PHY_TO_LOG(endpoint);
- uint32_t idx = EP_BDT_IDX(endpoint, RX, 0);
- bdt[idx].byte_count = maximumSize;
- return EP_PENDING;
-}
-
-EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t * buffer, uint32_t *bytesRead) {
- uint32_t n, sz, idx, setup = 0;
- uint8_t not_iso;
- uint8_t * ep_buf;
-
- uint32_t log_endpoint = PHY_TO_LOG(endpoint);
-
- if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
- return EP_INVALID;
- }
-
- // if read on a IN endpoint -> error
- if (IN_EP(endpoint)) {
- return EP_INVALID;
- }
-
- idx = EP_BDT_IDX(log_endpoint, RX, 0);
- sz = bdt[idx].byte_count;
- not_iso = USB0->ENDPOINT[log_endpoint].ENDPT & USB_ENDPT_EPHSHK_MASK;
-
- //for isochronous endpoint, we don't wait an interrupt
- if ((log_endpoint != 0) && not_iso && !(epComplete & EP(endpoint))) {
- return EP_PENDING;
- }
-
- if ((log_endpoint == 0) && (TOK_PID(idx) == SETUP_TOKEN)) {
- setup = 1;
- }
-
- ep_buf = endpoint_buffer[idx];
-
- for (n = 0; n < sz; n++) {
- buffer[n] = ep_buf[n];
- }
-
- if (((Data1 >> endpoint) & 1) == ((bdt[idx].info >> 6) & 1)) {
- if (setup && (buffer[6] == 0)) // if no setup data stage,
- Data1 &= ~1UL; // set DATA0
- else
- Data1 ^= (1 << endpoint);
- }
-
- if (((Data1 >> endpoint) & 1)) {
- bdt[idx].info = BD_DTS_MASK | BD_DATA01_MASK | BD_OWN_MASK;
- }
- else {
- bdt[idx].info = BD_DTS_MASK | BD_OWN_MASK;
- }
-
- USB0->CTL &= ~USB_CTL_TXSUSPENDTOKENBUSY_MASK;
- *bytesRead = sz;
-
- epComplete &= ~EP(endpoint);
- return EP_COMPLETED;
-}
-
-EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size) {
- uint32_t idx, n;
- uint8_t * ep_buf;
-
- if (endpoint > NUMBER_OF_PHYSICAL_ENDPOINTS - 1) {
- return EP_INVALID;
- }
-
- // if write on a OUT endpoint -> error
- if (OUT_EP(endpoint)) {
- return EP_INVALID;
- }
-
- idx = EP_BDT_IDX(PHY_TO_LOG(endpoint), TX, 0);
- bdt[idx].byte_count = size;
-
- ep_buf = endpoint_buffer[idx];
-
- for (n = 0; n < size; n++) {
- ep_buf[n] = data[n];
- }
-
- if ((Data1 >> endpoint) & 1) {
- bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK;
- } else {
- bdt[idx].info = BD_OWN_MASK | BD_DTS_MASK | BD_DATA01_MASK;
- }
-
- Data1 ^= (1 << endpoint);
-
- return EP_PENDING;
-}
-
-EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint) {
- if (epComplete & EP(endpoint)) {
- epComplete &= ~EP(endpoint);
- return EP_COMPLETED;
- }
-
- return EP_PENDING;
-}
-
-void USBHAL::stallEndpoint(uint8_t endpoint) {
- USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT |= USB_ENDPT_EPSTALL_MASK;
-}
-
-void USBHAL::unstallEndpoint(uint8_t endpoint) {
- USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT &= ~USB_ENDPT_EPSTALL_MASK;
-}
-
-bool USBHAL::getEndpointStallState(uint8_t endpoint) {
- uint8_t stall = (USB0->ENDPOINT[PHY_TO_LOG(endpoint)].ENDPT & USB_ENDPT_EPSTALL_MASK);
- return (stall) ? true : false;
-}
-
-void USBHAL::remoteWakeup(void) {
- // [TODO]
-}
-
-
-void USBHAL::_usbisr(void) {
- instance->usbisr();
-}
-
-
-void USBHAL::usbisr(void) {
- uint8_t i;
- uint8_t istat = USB0->ISTAT;
-
- // reset interrupt
- if (istat & USB_ISTAT_USBRST_MASK) {
- // disable all endpt
- for(i = 0; i < 16; i++) {
- USB0->ENDPOINT[i].ENDPT = 0x00;
- }
-
- // enable control endpoint
- realiseEndpoint(EP0OUT, MAX_PACKET_SIZE_EP0, 0);
- realiseEndpoint(EP0IN, MAX_PACKET_SIZE_EP0, 0);
-
- Data1 = 0x55555555;
- USB0->CTL |= USB_CTL_ODDRST_MASK;
-
- USB0->ISTAT = 0xFF; // clear all interrupt status flags
- USB0->ERRSTAT = 0xFF; // clear all error flags
- USB0->ERREN = 0xFF; // enable error interrupt sources
- USB0->ADDR = 0x00; // set default address
-
- // reset bus for USBDevice layer
- busReset();
-
- return;
- }
-
- // resume interrupt
- if (istat & USB_ISTAT_RESUME_MASK) {
- USB0->ISTAT = USB_ISTAT_RESUME_MASK;
- }
-
- // SOF interrupt
- if (istat & USB_ISTAT_SOFTOK_MASK) {
- USB0->ISTAT = USB_ISTAT_SOFTOK_MASK;
- // SOF event, read frame number
- SOF(frameNumber());
- }
-
- // stall interrupt
- if (istat & 1<<7) {
- if (USB0->ENDPOINT[0].ENDPT & USB_ENDPT_EPSTALL_MASK)
- USB0->ENDPOINT[0].ENDPT &= ~USB_ENDPT_EPSTALL_MASK;
- USB0->ISTAT |= USB_ISTAT_STALL_MASK;
- }
-
- // token interrupt
- if (istat & 1<<3) {
- uint32_t num = (USB0->STAT >> 4) & 0x0F;
- uint32_t dir = (USB0->STAT >> 3) & 0x01;
- uint32_t ev_odd = (USB0->STAT >> 2) & 0x01;
- int endpoint = (num << 1) | dir;
-
- // setup packet
- if ((num == 0) && (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == SETUP_TOKEN)) {
- Data1 &= ~0x02;
- bdt[EP_BDT_IDX(0, TX, EVEN)].info &= ~BD_OWN_MASK;
- bdt[EP_BDT_IDX(0, TX, ODD)].info &= ~BD_OWN_MASK;
-
- // EP0 SETUP event (SETUP data received)
- EP0setupCallback();
-
- } else {
- // OUT packet
- if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == OUT_TOKEN) {
- if (num == 0)
- EP0out();
- else {
- epComplete |= EP(endpoint);
- if ((instance->*(epCallback[endpoint - 2]))()) {
- epComplete &= ~EP(endpoint);
- }
- }
- }
-
- // IN packet
- if (TOK_PID((EP_BDT_IDX(num, dir, ev_odd))) == IN_TOKEN) {
- if (num == 0) {
- EP0in();
- if (set_addr == 1) {
- USB0->ADDR = addr & 0x7F;
- set_addr = 0;
- }
- }
- else {
- epComplete |= EP(endpoint);
- if ((instance->*(epCallback[endpoint - 2]))()) {
- epComplete &= ~EP(endpoint);
- }
- }
- }
- }
-
- USB0->ISTAT = USB_ISTAT_TOKDNE_MASK;
- }
-
- // sleep interrupt
- if (istat & 1<<4) {
- USB0->ISTAT |= USB_ISTAT_SLEEP_MASK;
- }
-
- // error interrupt
- if (istat & USB_ISTAT_ERROR_MASK) {
- USB0->ERRSTAT = 0xFF;
- USB0->ISTAT |= USB_ISTAT_ERROR_MASK;
- }
-}
-
-
-#endif