diff options
Diffstat (limited to 'os/hal/src/serial_usb.c')
| -rw-r--r-- | os/hal/src/serial_usb.c | 414 |
1 files changed, 0 insertions, 414 deletions
diff --git a/os/hal/src/serial_usb.c b/os/hal/src/serial_usb.c deleted file mode 100644 index ff6e94b07..000000000 --- a/os/hal/src/serial_usb.c +++ /dev/null @@ -1,414 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012,2013 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file serial_usb.c
- * @brief Serial over USB Driver code.
- *
- * @addtogroup SERIAL_USB
- * @{
- */
-
-#include "ch.h"
-#include "hal.h"
-
-#if HAL_USE_SERIAL_USB || defined(__DOXYGEN__)
-
-/*===========================================================================*/
-/* Driver local definitions. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver exported variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local variables and types. */
-/*===========================================================================*/
-
-/*
- * Current Line Coding.
- */
-static cdc_linecoding_t linecoding = {
- {0x00, 0x96, 0x00, 0x00}, /* 38400. */
- LC_STOP_1, LC_PARITY_NONE, 8
-};
-
-/*===========================================================================*/
-/* Driver local functions. */
-/*===========================================================================*/
-
-/*
- * Interface implementation.
- */
-
-static size_t write(void *ip, const uint8_t *bp, size_t n) {
-
- return chOQWriteTimeout(&((SerialUSBDriver *)ip)->oqueue, bp,
- n, TIME_INFINITE);
-}
-
-static size_t read(void *ip, uint8_t *bp, size_t n) {
-
- return chIQReadTimeout(&((SerialUSBDriver *)ip)->iqueue, bp,
- n, TIME_INFINITE);
-}
-
-static msg_t put(void *ip, uint8_t b) {
-
- return chOQPutTimeout(&((SerialUSBDriver *)ip)->oqueue, b, TIME_INFINITE);
-}
-
-static msg_t get(void *ip) {
-
- return chIQGetTimeout(&((SerialUSBDriver *)ip)->iqueue, TIME_INFINITE);
-}
-
-static msg_t putt(void *ip, uint8_t b, systime_t timeout) {
-
- return chOQPutTimeout(&((SerialUSBDriver *)ip)->oqueue, b, timeout);
-}
-
-static msg_t gett(void *ip, systime_t timeout) {
-
- return chIQGetTimeout(&((SerialUSBDriver *)ip)->iqueue, timeout);
-}
-
-static size_t writet(void *ip, const uint8_t *bp, size_t n, systime_t time) {
-
- return chOQWriteTimeout(&((SerialUSBDriver *)ip)->oqueue, bp, n, time);
-}
-
-static size_t readt(void *ip, uint8_t *bp, size_t n, systime_t time) {
-
- return chIQReadTimeout(&((SerialUSBDriver *)ip)->iqueue, bp, n, time);
-}
-
-static const struct SerialUSBDriverVMT vmt = {
- write, read, put, get,
- putt, gett, writet, readt
-};
-
-/**
- * @brief Notification of data removed from the input queue.
- */
-static void inotify(GenericQueue *qp) {
- size_t n, maxsize;
- SerialUSBDriver *sdup = chQGetLink(qp);
-
- /* If the USB driver is not in the appropriate state then transactions
- must not be started.*/
- if ((usbGetDriverStateI(sdup->config->usbp) != USB_ACTIVE) ||
- (sdup->state != SDU_READY))
- return;
-
- /* If there is in the queue enough space to hold at least one packet and
- a transaction is not yet started then a new transaction is started for
- the available space.*/
- maxsize = sdup->config->usbp->epc[sdup->config->bulk_out]->out_maxsize;
- if (!usbGetReceiveStatusI(sdup->config->usbp, sdup->config->bulk_out) &&
- ((n = chIQGetEmptyI(&sdup->iqueue)) >= maxsize)) {
- chSysUnlock();
-
- n = (n / maxsize) * maxsize;
- usbPrepareQueuedReceive(sdup->config->usbp,
- sdup->config->bulk_out,
- &sdup->iqueue, n);
-
- chSysLock();
- usbStartReceiveI(sdup->config->usbp, sdup->config->bulk_out);
- }
-}
-
-/**
- * @brief Notification of data inserted into the output queue.
- */
-static void onotify(GenericQueue *qp) {
- size_t n;
- SerialUSBDriver *sdup = chQGetLink(qp);
-
- /* If the USB driver is not in the appropriate state then transactions
- must not be started.*/
- if ((usbGetDriverStateI(sdup->config->usbp) != USB_ACTIVE) ||
- (sdup->state != SDU_READY))
- return;
-
- /* If there is not an ongoing transaction and the output queue contains
- data then a new transaction is started.*/
- if (!usbGetTransmitStatusI(sdup->config->usbp, sdup->config->bulk_in) &&
- ((n = chOQGetFullI(&sdup->oqueue)) > 0)) {
- chSysUnlock();
-
- usbPrepareQueuedTransmit(sdup->config->usbp,
- sdup->config->bulk_in,
- &sdup->oqueue, n);
-
- chSysLock();
- usbStartTransmitI(sdup->config->usbp, sdup->config->bulk_in);
- }
-}
-
-/*===========================================================================*/
-/* Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Serial Driver initialization.
- * @note This function is implicitly invoked by @p halInit(), there is
- * no need to explicitly initialize the driver.
- *
- * @init
- */
-void sduInit(void) {
-}
-
-/**
- * @brief Initializes a generic full duplex driver object.
- * @details The HW dependent part of the initialization has to be performed
- * outside, usually in the hardware initialization code.
- *
- * @param[out] sdup pointer to a @p SerialUSBDriver structure
- *
- * @init
- */
-void sduObjectInit(SerialUSBDriver *sdup) {
-
- sdup->vmt = &vmt;
- chEvtInit(&sdup->event);
- sdup->state = SDU_STOP;
- chIQInit(&sdup->iqueue, sdup->ib, SERIAL_USB_BUFFERS_SIZE, inotify, sdup);
- chOQInit(&sdup->oqueue, sdup->ob, SERIAL_USB_BUFFERS_SIZE, onotify, sdup);
-}
-
-/**
- * @brief Configures and starts the driver.
- *
- * @param[in] sdup pointer to a @p SerialUSBDriver object
- * @param[in] config the serial over USB driver configuration
- *
- * @api
- */
-void sduStart(SerialUSBDriver *sdup, const SerialUSBConfig *config) {
- USBDriver *usbp = config->usbp;
-
- chDbgCheck(sdup != NULL, "sduStart");
-
- chSysLock();
- chDbgAssert((sdup->state == SDU_STOP) || (sdup->state == SDU_READY),
- "sduStart(), #1",
- "invalid state");
- usbp->in_params[config->bulk_in - 1] = sdup;
- usbp->out_params[config->bulk_out - 1] = sdup;
- usbp->in_params[config->int_in - 1] = sdup;
- sdup->config = config;
- sdup->state = SDU_READY;
- chSysUnlock();
-}
-
-/**
- * @brief Stops the driver.
- * @details Any thread waiting on the driver's queues will be awakened with
- * the message @p Q_RESET.
- *
- * @param[in] sdup pointer to a @p SerialUSBDriver object
- *
- * @api
- */
-void sduStop(SerialUSBDriver *sdup) {
- USBDriver *usbp = sdup->config->usbp;
-
- chDbgCheck(sdup != NULL, "sdStop");
-
- chSysLock();
-
- chDbgAssert((sdup->state == SDU_STOP) || (sdup->state == SDU_READY),
- "sduStop(), #1",
- "invalid state");
-
- /* Driver in stopped state.*/
- usbp->in_params[sdup->config->bulk_in - 1] = NULL;
- usbp->out_params[sdup->config->bulk_out - 1] = NULL;
- usbp->in_params[sdup->config->int_in - 1] = NULL;
- sdup->state = SDU_STOP;
-
- /* Queues reset in order to signal the driver stop to the application.*/
- chnAddFlagsI(sdup, CHN_DISCONNECTED);
- chIQResetI(&sdup->iqueue);
- chOQResetI(&sdup->oqueue);
- chSchRescheduleS();
-
- chSysUnlock();
-}
-
-/**
- * @brief USB device configured handler.
- *
- * @param[in] sdup pointer to a @p SerialUSBDriver object
- *
- * @iclass
- */
-void sduConfigureHookI(SerialUSBDriver *sdup) {
- USBDriver *usbp = sdup->config->usbp;
-
- chIQResetI(&sdup->iqueue);
- chOQResetI(&sdup->oqueue);
- chnAddFlagsI(sdup, CHN_CONNECTED);
-
- /* Starts the first OUT transaction immediately.*/
- usbPrepareQueuedReceive(usbp, sdup->config->bulk_out, &sdup->iqueue,
- usbp->epc[sdup->config->bulk_out]->out_maxsize);
- usbStartReceiveI(usbp, sdup->config->bulk_out);
-}
-
-/**
- * @brief Default requests hook.
- * @details Applications wanting to use the Serial over USB driver can use
- * this function as requests hook in the USB configuration.
- * The following requests are emulated:
- * - CDC_GET_LINE_CODING.
- * - CDC_SET_LINE_CODING.
- * - CDC_SET_CONTROL_LINE_STATE.
- * .
- *
- * @param[in] usbp pointer to the @p USBDriver object
- * @return The hook status.
- * @retval TRUE Message handled internally.
- * @retval FALSE Message not handled.
- */
-bool_t sduRequestsHook(USBDriver *usbp) {
-
- if ((usbp->setup[0] & USB_RTYPE_TYPE_MASK) == USB_RTYPE_TYPE_CLASS) {
- switch (usbp->setup[1]) {
- case CDC_GET_LINE_CODING:
- usbSetupTransfer(usbp, (uint8_t *)&linecoding, sizeof(linecoding), NULL);
- return TRUE;
- case CDC_SET_LINE_CODING:
- usbSetupTransfer(usbp, (uint8_t *)&linecoding, sizeof(linecoding), NULL);
- return TRUE;
- case CDC_SET_CONTROL_LINE_STATE:
- /* Nothing to do, there are no control lines.*/
- usbSetupTransfer(usbp, NULL, 0, NULL);
- return TRUE;
- default:
- return FALSE;
- }
- }
- return FALSE;
-}
-
-/**
- * @brief Default data transmitted callback.
- * @details The application must use this function as callback for the IN
- * data endpoint.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- * @param[in] ep endpoint number
- */
-void sduDataTransmitted(USBDriver *usbp, usbep_t ep) {
- size_t n;
- SerialUSBDriver *sdup = usbp->in_params[ep - 1];
-
- if (sdup == NULL)
- return;
-
- chSysLockFromIsr();
- chnAddFlagsI(sdup, CHN_OUTPUT_EMPTY);
-
- if ((n = chOQGetFullI(&sdup->oqueue)) > 0) {
- /* The endpoint cannot be busy, we are in the context of the callback,
- so it is safe to transmit without a check.*/
- chSysUnlockFromIsr();
-
- usbPrepareQueuedTransmit(usbp, ep, &sdup->oqueue, n);
-
- chSysLockFromIsr();
- usbStartTransmitI(usbp, ep);
- }
- else if ((usbp->epc[ep]->in_state->txsize > 0) &&
- !(usbp->epc[ep]->in_state->txsize &
- (usbp->epc[ep]->in_maxsize - 1))) {
- /* Transmit zero sized packet in case the last one has maximum allowed
- size. Otherwise the recipient may expect more data coming soon and
- not return buffered data to app. See section 5.8.3 Bulk Transfer
- Packet Size Constraints of the USB Specification document.*/
- chSysUnlockFromIsr();
-
- usbPrepareQueuedTransmit(usbp, ep, &sdup->oqueue, 0);
-
- chSysLockFromIsr();
- usbStartTransmitI(usbp, ep);
- }
-
- chSysUnlockFromIsr();
-}
-
-/**
- * @brief Default data received callback.
- * @details The application must use this function as callback for the OUT
- * data endpoint.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- * @param[in] ep endpoint number
- */
-void sduDataReceived(USBDriver *usbp, usbep_t ep) {
- size_t n, maxsize;
- SerialUSBDriver *sdup = usbp->out_params[ep - 1];
-
- if (sdup == NULL)
- return;
-
- chSysLockFromIsr();
- chnAddFlagsI(sdup, CHN_INPUT_AVAILABLE);
-
- /* Writes to the input queue can only happen when there is enough space
- to hold at least one packet.*/
- maxsize = usbp->epc[ep]->out_maxsize;
- if ((n = chIQGetEmptyI(&sdup->iqueue)) >= maxsize) {
- /* The endpoint cannot be busy, we are in the context of the callback,
- so a packet is in the buffer for sure.*/
- chSysUnlockFromIsr();
-
- n = (n / maxsize) * maxsize;
- usbPrepareQueuedReceive(usbp, ep, &sdup->iqueue, n);
-
- chSysLockFromIsr();
- usbStartReceiveI(usbp, ep);
- }
-
- chSysUnlockFromIsr();
-}
-
-/**
- * @brief Default data received callback.
- * @details The application must use this function as callback for the IN
- * interrupt endpoint.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- * @param[in] ep endpoint number
- */
-void sduInterruptTransmitted(USBDriver *usbp, usbep_t ep) {
-
- (void)usbp;
- (void)ep;
-}
-
-#endif /* HAL_USE_SERIAL */
-
-/** @} */
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