Mass renaming of HAL files.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9151 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 0 insertions, 950 deletions

diff --git a/os/hal/src/usb.c b/os/hal/src/usb.c
deleted file mode 100644
index d9fbc091a..000000000
--- a/os/hal/src/usb.c
+++ /dev/null
@@ -1,950 +0,0 @@
-/*

-    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio

-

-    Licensed under the Apache License, Version 2.0 (the "License");

-    you may not use this file except in compliance with the License.

-    You may obtain a copy of the License at

-

-        http://www.apache.org/licenses/LICENSE-2.0

-

-    Unless required by applicable law or agreed to in writing, software

-    distributed under the License is distributed on an "AS IS" BASIS,

-    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

-    See the License for the specific language governing permissions and

-    limitations under the License.

-*/

-

-/**

- * @file    usb.c

- * @brief   USB Driver code.

- *

- * @addtogroup USB

- * @{

- */

-

-#include <string.h>

-

-#include "hal.h"

-

-#if (HAL_USE_USB == TRUE) || defined(__DOXYGEN__)

-

-/*===========================================================================*/

-/* Driver local definitions.                                                 */

-/*===========================================================================*/

-

-/*===========================================================================*/

-/* Driver exported variables.                                                */

-/*===========================================================================*/

-

-/*===========================================================================*/

-/* Driver local variables and types.                                         */

-/*===========================================================================*/

-

-static const uint8_t zero_status[] = {0x00, 0x00};

-static const uint8_t active_status[] ={0x00, 0x00};

-static const uint8_t halted_status[] = {0x01, 0x00};

-

-/*===========================================================================*/

-/* Driver local functions.                                                   */

-/*===========================================================================*/

-

-static uint16_t get_hword(uint8_t *p) {

-  uint16_t hw;

-

-  hw  = (uint16_t)*p++;

-  hw |= (uint16_t)*p << 8U;

-  return hw;

-}

-

-/**

- * @brief  SET ADDRESS transaction callback.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- */

-static void set_address(USBDriver *usbp) {

-

-  usbp->address = usbp->setup[2];

-  usb_lld_set_address(usbp);

-  _usb_isr_invoke_event_cb(usbp, USB_EVENT_ADDRESS);

-  usbp->state = USB_SELECTED;

-}

-

-/**

- * @brief   Standard requests handler.

- * @details This is the standard requests default handler, most standard

- *          requests are handled here, the user can override the standard

- *          handling using the @p requests_hook_cb hook in the

- *          @p USBConfig structure.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @return              The request handling exit code.

- * @retval false        Request not recognized by the handler or error.

- * @retval true         Request handled.

- */

-static bool default_handler(USBDriver *usbp) {

-  const USBDescriptor *dp;

-

-  /* Decoding the request.*/

-  switch ((((uint32_t)usbp->setup[0] & (USB_RTYPE_RECIPIENT_MASK |

-                                        USB_RTYPE_TYPE_MASK)) |

-           ((uint32_t)usbp->setup[1] << 8U))) {

-  case (uint32_t)USB_RTYPE_RECIPIENT_DEVICE | ((uint32_t)USB_REQ_GET_STATUS << 8):

-    /* Just returns the current status word.*/

-    usbSetupTransfer(usbp, (uint8_t *)&usbp->status, 2, NULL);

-    return true;

-  case (uint32_t)USB_RTYPE_RECIPIENT_DEVICE | ((uint32_t)USB_REQ_CLEAR_FEATURE << 8):

-    /* Only the DEVICE_REMOTE_WAKEUP is handled here, any other feature

-       number is handled as an error.*/

-    if (usbp->setup[2] == USB_FEATURE_DEVICE_REMOTE_WAKEUP) {

-      usbp->status &= ~2U;

-      usbSetupTransfer(usbp, NULL, 0, NULL);

-      return true;

-    }

-    return false;

-  case (uint32_t)USB_RTYPE_RECIPIENT_DEVICE | ((uint32_t)USB_REQ_SET_FEATURE << 8):

-    /* Only the DEVICE_REMOTE_WAKEUP is handled here, any other feature

-       number is handled as an error.*/

-    if (usbp->setup[2] == USB_FEATURE_DEVICE_REMOTE_WAKEUP) {

-      usbp->status |= 2U;

-      usbSetupTransfer(usbp, NULL, 0, NULL);

-      return true;

-    }

-    return false;

-  case (uint32_t)USB_RTYPE_RECIPIENT_DEVICE | ((uint32_t)USB_REQ_SET_ADDRESS << 8):

-    /* The SET_ADDRESS handling can be performed here or postponed after

-       the status packed depending on the USB_SET_ADDRESS_MODE low

-       driver setting.*/

-#if USB_SET_ADDRESS_MODE == USB_EARLY_SET_ADDRESS

-    if ((usbp->setup[0] == USB_RTYPE_RECIPIENT_DEVICE) &&

-        (usbp->setup[1] == USB_REQ_SET_ADDRESS)) {

-      set_address(usbp);

-    }

-    usbSetupTransfer(usbp, NULL, 0, NULL);

-#else

-    usbSetupTransfer(usbp, NULL, 0, set_address);

-#endif

-    return true;

-  case (uint32_t)USB_RTYPE_RECIPIENT_DEVICE | ((uint32_t)USB_REQ_GET_DESCRIPTOR << 8):

-    /* Handling descriptor requests from the host.*/

-    dp = usbp->config->get_descriptor_cb(usbp, usbp->setup[3],

-                                         usbp->setup[2],

-                                         get_hword(&usbp->setup[4]));

-    if (dp == NULL) {

-      return false;

-    }

-    /*lint -save -e9005 [11.8] Removing const is fine.*/

-    usbSetupTransfer(usbp, (uint8_t *)dp->ud_string, dp->ud_size, NULL);

-    /*lint -restore*/

-    return true;

-  case (uint32_t)USB_RTYPE_RECIPIENT_DEVICE | ((uint32_t)USB_REQ_GET_CONFIGURATION << 8):

-    /* Returning the last selected configuration.*/

-    usbSetupTransfer(usbp, &usbp->configuration, 1, NULL);

-    return true;

-  case (uint32_t)USB_RTYPE_RECIPIENT_DEVICE | ((uint32_t)USB_REQ_SET_CONFIGURATION << 8):

-    /* Handling configuration selection from the host.*/

-    usbp->configuration = usbp->setup[2];

-    if (usbp->configuration == 0U) {

-      usbp->state = USB_SELECTED;

-    }

-    else {

-      usbp->state = USB_ACTIVE;

-    }

-    _usb_isr_invoke_event_cb(usbp, USB_EVENT_CONFIGURED);

-    usbSetupTransfer(usbp, NULL, 0, NULL);

-    return true;

-  case (uint32_t)USB_RTYPE_RECIPIENT_INTERFACE | ((uint32_t)USB_REQ_GET_STATUS << 8):

-  case (uint32_t)USB_RTYPE_RECIPIENT_ENDPOINT | ((uint32_t)USB_REQ_SYNCH_FRAME << 8):

-    /* Just sending two zero bytes, the application can change the behavior

-       using a hook..*/

-    /*lint -save -e9005 [11.8] Removing const is fine.*/

-    usbSetupTransfer(usbp, (uint8_t *)zero_status, 2, NULL);

-    /*lint -restore*/

-    return true;

-  case (uint32_t)USB_RTYPE_RECIPIENT_ENDPOINT | ((uint32_t)USB_REQ_GET_STATUS << 8):

-    /* Sending the EP status.*/

-    if ((usbp->setup[4] & 0x80U) != 0U) {

-      switch (usb_lld_get_status_in(usbp, usbp->setup[4] & 0x0FU)) {

-      case EP_STATUS_STALLED:

-        /*lint -save -e9005 [11.8] Removing const is fine.*/

-        usbSetupTransfer(usbp, (uint8_t *)halted_status, 2, NULL);

-        /*lint -restore*/

-        return true;

-      case EP_STATUS_ACTIVE:

-        /*lint -save -e9005 [11.8] Removing const is fine.*/

-        usbSetupTransfer(usbp, (uint8_t *)active_status, 2, NULL);

-        /*lint -restore*/

-        return true;

-      case EP_STATUS_DISABLED:

-      default:

-        return false;

-      }

-    }

-    else {

-      switch (usb_lld_get_status_out(usbp, usbp->setup[4] & 0x0FU)) {

-      case EP_STATUS_STALLED:

-        /*lint -save -e9005 [11.8] Removing const is fine.*/

-        usbSetupTransfer(usbp, (uint8_t *)halted_status, 2, NULL);

-        /*lint -restore*/

-        return true;

-      case EP_STATUS_ACTIVE:

-        /*lint -save -e9005 [11.8] Removing const is fine.*/

-        usbSetupTransfer(usbp, (uint8_t *)active_status, 2, NULL);

-        /*lint -restore*/

-        return true;

-      case EP_STATUS_DISABLED:

-      default:

-        return false;

-      }

-    }

-  case (uint32_t)USB_RTYPE_RECIPIENT_ENDPOINT | ((uint32_t)USB_REQ_CLEAR_FEATURE << 8):

-    /* Only ENDPOINT_HALT is handled as feature.*/

-    if (usbp->setup[2] != USB_FEATURE_ENDPOINT_HALT) {

-      return false;

-    }

-    /* Clearing the EP status, not valid for EP0, it is ignored in that case.*/

-    if ((usbp->setup[4] & 0x0FU) != 0U) {

-      if ((usbp->setup[4] & 0x80U) != 0U) {

-        usb_lld_clear_in(usbp, usbp->setup[4] & 0x0FU);

-      }

-      else {

-        usb_lld_clear_out(usbp, usbp->setup[4] & 0x0FU);

-      }

-    }

-    usbSetupTransfer(usbp, NULL, 0, NULL);

-    return true;

-  case (uint32_t)USB_RTYPE_RECIPIENT_ENDPOINT | ((uint32_t)USB_REQ_SET_FEATURE << 8):

-    /* Only ENDPOINT_HALT is handled as feature.*/

-    if (usbp->setup[2] != USB_FEATURE_ENDPOINT_HALT) {

-      return false;

-    }

-    /* Stalling the EP, not valid for EP0, it is ignored in that case.*/

-    if ((usbp->setup[4] & 0x0FU) != 0U) {

-      if ((usbp->setup[4] & 0x80U) != 0U) {

-        usb_lld_stall_in(usbp, usbp->setup[4] & 0x0FU);

-      }

-      else {

-        usb_lld_stall_out(usbp, usbp->setup[4] & 0x0FU);

-      }

-    }

-    usbSetupTransfer(usbp, NULL, 0, NULL);

-    return true;

-  case (uint32_t)USB_RTYPE_RECIPIENT_DEVICE | ((uint32_t)USB_REQ_SET_DESCRIPTOR << 8):

-  case (uint32_t)USB_RTYPE_RECIPIENT_INTERFACE | ((uint32_t)USB_REQ_CLEAR_FEATURE << 8):

-  case (uint32_t)USB_RTYPE_RECIPIENT_INTERFACE | ((uint32_t)USB_REQ_SET_FEATURE << 8):

-  case (uint32_t)USB_RTYPE_RECIPIENT_INTERFACE | ((uint32_t)USB_REQ_GET_INTERFACE << 8):

-  case (uint32_t)USB_RTYPE_RECIPIENT_INTERFACE | ((uint32_t)USB_REQ_SET_INTERFACE << 8):

-    /* All the above requests are not handled here, if you need them then

-       use the hook mechanism and provide handling.*/

-  default:

-    return false;

-  }

-}

-

-/*===========================================================================*/

-/* Driver exported functions.                                                */

-/*===========================================================================*/

-

-/**

- * @brief   USB Driver initialization.

- * @note    This function is implicitly invoked by @p halInit(), there is

- *          no need to explicitly initialize the driver.

- *

- * @init

- */

-void usbInit(void) {

-

-  usb_lld_init();

-}

-

-/**

- * @brief   Initializes the standard part of a @p USBDriver structure.

- *

- * @param[out] usbp     pointer to the @p USBDriver object

- *

- * @init

- */

-void usbObjectInit(USBDriver *usbp) {

-  unsigned i;

-

-  usbp->state        = USB_STOP;

-  usbp->config       = NULL;

-  for (i = 0; i < (unsigned)USB_MAX_ENDPOINTS; i++) {

-    usbp->in_params[i]  = NULL;

-    usbp->out_params[i] = NULL;

-  }

-  usbp->transmitting = 0;

-  usbp->receiving    = 0;

-}

-

-/**

- * @brief   Configures and activates the USB peripheral.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] config    pointer to the @p USBConfig object

- *

- * @api

- */

-void usbStart(USBDriver *usbp, const USBConfig *config) {

-  unsigned i;

-

-  osalDbgCheck((usbp != NULL) && (config != NULL));

-

-  osalSysLock();

-  osalDbgAssert((usbp->state == USB_STOP) || (usbp->state == USB_READY),

-                "invalid state");

-  usbp->config = config;

-  for (i = 0; i <= (unsigned)USB_MAX_ENDPOINTS; i++) {

-    usbp->epc[i] = NULL;

-  }

-  usb_lld_start(usbp);

-  usbp->state = USB_READY;

-  osalSysUnlock();

-}

-

-/**

- * @brief   Deactivates the USB peripheral.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- *

- * @api

- */

-void usbStop(USBDriver *usbp) {

-  unsigned i;

-

-  osalDbgCheck(usbp != NULL);

-

-  osalSysLock();

-  osalDbgAssert((usbp->state == USB_STOP) || (usbp->state == USB_READY) ||

-                (usbp->state == USB_SELECTED) || (usbp->state == USB_ACTIVE) ||

-                (usbp->state == USB_SUSPENDED),

-                "invalid state");

-  usb_lld_stop(usbp);

-  usbp->state = USB_STOP;

-

-  /* Resetting all ongoing synchronous operations.*/

-  for (i = 0; i <= (unsigned)USB_MAX_ENDPOINTS; i++) {

-#if USB_USE_WAIT == TRUE

-    if (usbp->epc[i] != NULL) {

-      if (usbp->epc[i]->in_state != NULL) {

-        osalThreadResumeI(&usbp->epc[i]->in_state->thread, MSG_RESET);

-      }

-      if (usbp->epc[i]->out_state != NULL) {

-        osalThreadResumeI(&usbp->epc[i]->out_state->thread, MSG_RESET);

-      }

-    }

-#endif

-    usbp->epc[i] = NULL;

-  }

-  osalOsRescheduleS();

-  osalSysUnlock();

-}

-

-/**

- * @brief   Enables an endpoint.

- * @details This function enables an endpoint, both IN and/or OUT directions

- *          depending on the configuration structure.

- * @note    This function must be invoked in response of a SET_CONFIGURATION

- *          or SET_INTERFACE message.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] ep        endpoint number

- * @param[in] epcp      the endpoint configuration

- *

- * @iclass

- */

-void usbInitEndpointI(USBDriver *usbp, usbep_t ep,

-                      const USBEndpointConfig *epcp) {

-

-  osalDbgCheckClassI();

-  osalDbgCheck((usbp != NULL) && (epcp != NULL));

-  osalDbgAssert(usbp->state == USB_ACTIVE,

-                "invalid state");

-  osalDbgAssert(usbp->epc[ep] == NULL, "already initialized");

-

-  /* Logically enabling the endpoint in the USBDriver structure.*/

-  usbp->epc[ep] = epcp;

-

-  /* Clearing the state structures, custom fields as well.*/

-  if (epcp->in_state != NULL) {

-    memset(epcp->in_state, 0, sizeof(USBInEndpointState));

-  }

-  if (epcp->out_state != NULL) {

-    memset(epcp->out_state, 0, sizeof(USBOutEndpointState));

-  }

-

-  /* Low level endpoint activation.*/

-  usb_lld_init_endpoint(usbp, ep);

-}

-

-/**

- * @brief   Disables all the active endpoints.

- * @details This function disables all the active endpoints except the

- *          endpoint zero.

- * @note    This function must be invoked in response of a SET_CONFIGURATION

- *          message with configuration number zero.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- *

- * @iclass

- */

-void usbDisableEndpointsI(USBDriver *usbp) {

-  unsigned i;

-

-  osalDbgCheckClassI();

-  osalDbgCheck(usbp != NULL);

-  osalDbgAssert(usbp->state == USB_SELECTED, "invalid state");

-

-  usbp->transmitting &= ~1U;

-  usbp->receiving    &= ~1U;

-  for (i = 1; i <= (unsigned)USB_MAX_ENDPOINTS; i++) {

-#if USB_USE_WAIT == TRUE

-    /* Signaling the event to threads waiting on endpoints.*/

-    if (usbp->epc[i] != NULL) {

-      osalSysLockFromISR();

-      if (usbp->epc[i]->in_state != NULL) {

-        osalThreadResumeI(&usbp->epc[i]->in_state->thread, MSG_RESET);

-      }

-      if (usbp->epc[i]->out_state != NULL) {

-        osalThreadResumeI(&usbp->epc[i]->out_state->thread, MSG_RESET);

-      }

-      osalSysUnlockFromISR();

-    }

-#endif

-    usbp->epc[i] = NULL;

-  }

-

-  /* Low level endpoints deactivation.*/

-  usb_lld_disable_endpoints(usbp);

-}

-

-/**

- * @brief   Starts a receive transaction on an OUT endpoint.

- * @note    This function is meant to be called from ISR context outside

- *          critical zones because there is a potentially slow operation

- *          inside.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] ep        endpoint number

- * @param[out] buf      buffer where to copy the received data

- * @param[in] n         transaction size. It is recommended a multiple of

- *                      the packet size because the excess is discarded.

- *

- * @iclass

- */

-void usbStartReceiveI(USBDriver *usbp, usbep_t ep,

-                      uint8_t *buf, size_t n) {

-  USBOutEndpointState *osp;

-

-  osalDbgCheckClassI();

-  osalDbgCheck((usbp != NULL) && (ep <= (usbep_t)USB_MAX_ENDPOINTS));

-  osalDbgAssert(!usbGetReceiveStatusI(usbp, ep), "already receiving");

-

-  /* Marking the endpoint as active.*/

-  usbp->receiving |= (uint16_t)((unsigned)1U << (unsigned)ep);

-

-  /* Setting up the transfer.*/

-  /*lint -save -e661 [18.1] pclint is confused by the check on ep.*/

-  osp = usbp->epc[ep]->out_state;

-  /*lint -restore*/

-  osp->rxbuf  = buf;

-  osp->rxsize = n;

-  osp->rxcnt  = 0;

-#if USB_USE_WAIT == TRUE

-  osp->thread = NULL;

-#endif

-

-  /* Starting transfer.*/

-  usb_lld_start_out(usbp, ep);

-}

-

-/**

- * @brief   Starts a transmit transaction on an IN endpoint.

- * @note    This function is meant to be called from ISR context outside

- *          critical zones because there is a potentially slow operation

- *          inside.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] ep        endpoint number

- * @param[in] buf       buffer where to fetch the data to be transmitted

- * @param[in] n         transaction size

- *

- * @iclass

- */

-void usbStartTransmitI(USBDriver *usbp, usbep_t ep,

-                       const uint8_t *buf, size_t n) {

-  USBInEndpointState *isp;

-

-  osalDbgCheckClassI();

-  osalDbgCheck((usbp != NULL) && (ep <= (usbep_t)USB_MAX_ENDPOINTS));

-  osalDbgAssert(!usbGetTransmitStatusI(usbp, ep), "already transmitting");

-

-  /* Marking the endpoint as active.*/

-  usbp->transmitting |= (uint16_t)((unsigned)1U << (unsigned)ep);

-

-  /* Setting up the transfer.*/

-  /*lint -save -e661 [18.1] pclint is confused by the check on ep.*/

-  isp = usbp->epc[ep]->in_state;

-  /*lint -restore*/

-  isp->txbuf  = buf;

-  isp->txsize = n;

-  isp->txcnt  = 0;

-#if USB_USE_WAIT == TRUE

-  isp->thread = NULL;

-#endif

-

-  /* Starting transfer.*/

-  usb_lld_start_in(usbp, ep);

-}

-

-#if (USB_USE_WAIT == TRUE) || defined(__DOXYGEN__)

-/**

- * @brief   Performs a receive transaction on an OUT endpoint.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] ep        endpoint number

- * @param[out] buf      buffer where to copy the received data

- * @param[in] n         transaction size. It is recommended a multiple of

- *                      the packet size because the excess is discarded.

- *

- * @return              The received effective data size, it can be less than

- *                      the amount specified.

- * @retval MSG_RESET    driver not in @p USB_ACTIVE state or the operation

- *                      has been aborted by an USB reset or a transition to

- *                      the @p USB_SUSPENDED state.

- *

- * @api

- */

-msg_t usbReceive(USBDriver *usbp, usbep_t ep, uint8_t *buf, size_t n) {

-  msg_t msg;

-

-  osalSysLock();

-

-  if (usbGetDriverStateI(usbp) != USB_ACTIVE) {

-    osalSysUnlock();

-    return MSG_RESET;

-  }

-

-  usbStartReceiveI(usbp, ep, buf, n);

-  msg = osalThreadSuspendS(&usbp->epc[ep]->out_state->thread);

-  osalSysUnlock();

-

-  return msg;

-}

-

-/**

- * @brief   Performs a transmit transaction on an IN endpoint.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] ep        endpoint number

- * @param[in] buf       buffer where to fetch the data to be transmitted

- * @param[in] n         transaction size

- *

- * @return              The operation status.

- * @retval MSG_OK       operation performed successfully.

- * @retval MSG_RESET    driver not in @p USB_ACTIVE state or the operation

- *                      has been aborted by an USB reset or a transition to

- *                      the @p USB_SUSPENDED state.

- *

- * @api

- */

-msg_t usbTransmit(USBDriver *usbp, usbep_t ep, const uint8_t *buf, size_t n) {

-  msg_t msg;

-

-  osalSysLock();

-

-  if (usbGetDriverStateI(usbp) != USB_ACTIVE) {

-    osalSysUnlock();

-    return MSG_RESET;

-  }

-

-  usbStartTransmitI(usbp, ep, buf, n);

-  msg = osalThreadSuspendS(&usbp->epc[ep]->in_state->thread);

-  osalSysUnlock();

-

-  return msg;

-}

-#endif /* USB_USE_WAIT == TRUE */

-

-/**

- * @brief   Stalls an OUT endpoint.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] ep        endpoint number

- *

- * @return              The operation status.

- * @retval false        Endpoint stalled.

- * @retval true         Endpoint busy, not stalled.

- *

- * @iclass

- */

-bool usbStallReceiveI(USBDriver *usbp, usbep_t ep) {

-

-  osalDbgCheckClassI();

-  osalDbgCheck(usbp != NULL);

-

-  if (usbGetReceiveStatusI(usbp, ep)) {

-    return true;

-  }

-

-  usb_lld_stall_out(usbp, ep);

-  return false;

-}

-

-/**

- * @brief   Stalls an IN endpoint.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] ep        endpoint number

- *

- * @return              The operation status.

- * @retval false        Endpoint stalled.

- * @retval true         Endpoint busy, not stalled.

- *

- * @iclass

- */

-bool usbStallTransmitI(USBDriver *usbp, usbep_t ep) {

-

-  osalDbgCheckClassI();

-  osalDbgCheck(usbp != NULL);

-

-  if (usbGetTransmitStatusI(usbp, ep)) {

-    return true;

-  }

-

-  usb_lld_stall_in(usbp, ep);

-  return false;

-}

-

-/**

- * @brief   USB reset routine.

- * @details This function must be invoked when an USB bus reset condition is

- *          detected.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- *

- * @notapi

- */

-void _usb_reset(USBDriver *usbp) {

-  unsigned i;

-

-  /* State transition.*/

-  usbp->state         = USB_READY;

-

-  /* Resetting internal state.*/

-  usbp->status        = 0;

-  usbp->address       = 0;

-  usbp->configuration = 0;

-  usbp->transmitting  = 0;

-  usbp->receiving     = 0;

-

-  /* Invalidates all endpoints into the USBDriver structure.*/

-  for (i = 0; i <= (unsigned)USB_MAX_ENDPOINTS; i++) {

-#if USB_USE_WAIT == TRUE

-    /* Signaling the event to threads waiting on endpoints.*/

-    if (usbp->epc[i] != NULL) {

-      osalSysLockFromISR();

-      if (usbp->epc[i]->in_state != NULL) {

-        osalThreadResumeI(&usbp->epc[i]->in_state->thread, MSG_RESET);

-      }

-      if (usbp->epc[i]->out_state != NULL) {

-        osalThreadResumeI(&usbp->epc[i]->out_state->thread, MSG_RESET);

-      }

-      osalSysUnlockFromISR();

-    }

-#endif

-    usbp->epc[i] = NULL;

-  }

-

-  /* EP0 state machine initialization.*/

-  usbp->ep0state = USB_EP0_WAITING_SETUP;

-

-  /* Low level reset.*/

-  usb_lld_reset(usbp);

-

-  /* Notification of reset event.*/

-  _usb_isr_invoke_event_cb(usbp, USB_EVENT_RESET);

-}

-

-/**

- * @brief   USB suspend routine.

- * @details This function must be invoked when an USB bus suspend condition is

- *          detected.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- *

- * @notapi

- */

-void _usb_suspend(USBDriver *usbp) {

-

-  /* State transition.*/

-  usbp->state = USB_SUSPENDED;

-

-  /* Notification of suspend event.*/

-  _usb_isr_invoke_event_cb(usbp, USB_EVENT_SUSPEND);

-

-  /* Signaling the event to threads waiting on endpoints.*/

-#if USB_USE_WAIT == TRUE

-  {

-    unsigned i;

-

-    for (i = 0; i <= (unsigned)USB_MAX_ENDPOINTS; i++) {

-      if (usbp->epc[i] != NULL) {

-        osalSysLockFromISR();

-        if (usbp->epc[i]->in_state != NULL) {

-          osalThreadResumeI(&usbp->epc[i]->in_state->thread, MSG_RESET);

-        }

-        if (usbp->epc[i]->out_state != NULL) {

-          osalThreadResumeI(&usbp->epc[i]->out_state->thread, MSG_RESET);

-        }

-        osalSysUnlockFromISR();

-      }

-    }

-  }

-#endif

-}

-

-/**

- * @brief   USB wake-up routine.

- * @details This function must be invoked when an USB bus wake-up condition is

- *          detected.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- *

- * @notapi

- */

-void _usb_wakeup(USBDriver *usbp) {

-

-  /* State transition.*/

-  usbp->state = USB_ACTIVE;

-

-  /* Notification of suspend event.*/

-  _usb_isr_invoke_event_cb(usbp, USB_EVENT_WAKEUP);

-}

-

-/**

- * @brief   Default EP0 SETUP callback.

- * @details This function is used by the low level driver as default handler

- *          for EP0 SETUP events.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] ep        endpoint number, always zero

- *

- * @notapi

- */

-void _usb_ep0setup(USBDriver *usbp, usbep_t ep) {

-  size_t max;

-

-  usbp->ep0state = USB_EP0_WAITING_SETUP;

-  usbReadSetup(usbp, ep, usbp->setup);

-

-  /* First verify if the application has an handler installed for this

-     request.*/

-  /*lint -save -e9007 [13.5] No side effects, it is intentional.*/

-  if ((usbp->config->requests_hook_cb == NULL) ||

-      !(usbp->config->requests_hook_cb(usbp))) {

-  /*lint -restore*/

-    /* Invoking the default handler, if this fails then stalls the

-       endpoint zero as error.*/

-    /*lint -save -e9007 [13.5] No side effects, it is intentional.*/

-    if (((usbp->setup[0] & USB_RTYPE_TYPE_MASK) != USB_RTYPE_TYPE_STD) ||

-        !default_handler(usbp)) {

-    /*lint -restore*/

-      /* Error response, the state machine goes into an error state, the low

-         level layer will have to reset it to USB_EP0_WAITING_SETUP after

-         receiving a SETUP packet.*/

-      usb_lld_stall_in(usbp, 0);

-      usb_lld_stall_out(usbp, 0);

-      _usb_isr_invoke_event_cb(usbp, USB_EVENT_STALLED);

-      usbp->ep0state = USB_EP0_ERROR;

-      return;

-    }

-  }

-#if (USB_SET_ADDRESS_ACK_HANDLING == USB_SET_ADDRESS_ACK_HW)

-  if (usbp->setup[1] == USB_REQ_SET_ADDRESS) {

-    /* Zero-length packet sent by hardware */

-    return;

-  }

-#endif

-  /* Transfer preparation. The request handler must have populated

-     correctly the fields ep0next, ep0n and ep0endcb using the macro

-     usbSetupTransfer().*/

-  max = (size_t)get_hword(&usbp->setup[6]);

-  /* The transfer size cannot exceed the specified amount.*/

-  if (usbp->ep0n > max) {

-    usbp->ep0n = max;

-  }

-  if ((usbp->setup[0] & USB_RTYPE_DIR_MASK) == USB_RTYPE_DIR_DEV2HOST) {

-    /* IN phase.*/

-    if (usbp->ep0n != 0U) {

-      /* Starts the transmit phase.*/

-      usbp->ep0state = USB_EP0_TX;

-      osalSysLockFromISR();

-      usbStartTransmitI(usbp, 0, usbp->ep0next, usbp->ep0n);

-      osalSysUnlockFromISR();

-    }

-    else {

-      /* No transmission phase, directly receiving the zero sized status

-         packet.*/

-      usbp->ep0state = USB_EP0_WAITING_STS;

-#if (USB_EP0_STATUS_STAGE == USB_EP0_STATUS_STAGE_SW)

-      osalSysLockFromISR();

-      usbStartReceiveI(usbp, 0, NULL, 0);

-      osalSysUnlockFromISR();

-#else

-      usb_lld_end_setup(usbp, ep);

-#endif

-    }

-  }

-  else {

-    /* OUT phase.*/

-    if (usbp->ep0n != 0U) {

-      /* Starts the receive phase.*/

-      usbp->ep0state = USB_EP0_RX;

-      osalSysLockFromISR();

-      usbStartReceiveI(usbp, 0, usbp->ep0next, usbp->ep0n);

-      osalSysUnlockFromISR();

-    }

-    else {

-      /* No receive phase, directly sending the zero sized status

-         packet.*/

-      usbp->ep0state = USB_EP0_SENDING_STS;

-#if (USB_EP0_STATUS_STAGE == USB_EP0_STATUS_STAGE_SW)

-      osalSysLockFromISR();

-      usbStartTransmitI(usbp, 0, NULL, 0);

-      osalSysUnlockFromISR();

-#else

-      usb_lld_end_setup(usbp, ep);

-#endif

-    }

-  }

-}

-

-/**

- * @brief   Default EP0 IN callback.

- * @details This function is used by the low level driver as default handler

- *          for EP0 IN events.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] ep        endpoint number, always zero

- *

- * @notapi

- */

-void _usb_ep0in(USBDriver *usbp, usbep_t ep) {

-  size_t max;

-

-  (void)ep;

-  switch (usbp->ep0state) {

-  case USB_EP0_TX:

-    max = (size_t)get_hword(&usbp->setup[6]);

-    /* If the transmitted size is less than the requested size and it is a

-       multiple of the maximum packet size then a zero size packet must be

-       transmitted.*/

-    if ((usbp->ep0n < max) &&

-        ((usbp->ep0n % usbp->epc[0]->in_maxsize) == 0U)) {

-      osalSysLockFromISR();

-      usbStartTransmitI(usbp, 0, NULL, 0);

-      osalSysUnlockFromISR();

-      usbp->ep0state = USB_EP0_WAITING_TX0;

-      return;

-    }

-    /* Falls into, it is intentional.*/

-  case USB_EP0_WAITING_TX0:

-    /* Transmit phase over, receiving the zero sized status packet.*/

-    usbp->ep0state = USB_EP0_WAITING_STS;

-#if (USB_EP0_STATUS_STAGE == USB_EP0_STATUS_STAGE_SW)

-    osalSysLockFromISR();

-    usbStartReceiveI(usbp, 0, NULL, 0);

-    osalSysUnlockFromISR();

-#else

-    usb_lld_end_setup(usbp, ep);

-#endif

-    return;

-  case USB_EP0_SENDING_STS:

-    /* Status packet sent, invoking the callback if defined.*/

-    if (usbp->ep0endcb != NULL) {

-      usbp->ep0endcb(usbp);

-    }

-    usbp->ep0state = USB_EP0_WAITING_SETUP;

-    return;

-  case USB_EP0_WAITING_SETUP:

-  case USB_EP0_WAITING_STS:

-  case USB_EP0_RX:

-    /* All the above are invalid states in the IN phase.*/

-    osalDbgAssert(false, "EP0 state machine error");

-    /* Falling through is intentional.*/

-  case USB_EP0_ERROR:

-    /* Error response, the state machine goes into an error state, the low

-       level layer will have to reset it to USB_EP0_WAITING_SETUP after

-       receiving a SETUP packet.*/

-    usb_lld_stall_in(usbp, 0);

-    usb_lld_stall_out(usbp, 0);

-    _usb_isr_invoke_event_cb(usbp, USB_EVENT_STALLED);

-    usbp->ep0state = USB_EP0_ERROR;

-    return;

-  default:

-    osalDbgAssert(false, "EP0 state machine invalid state");

-  }

-}

-

-/**

- * @brief   Default EP0 OUT callback.

- * @details This function is used by the low level driver as default handler

- *          for EP0 OUT events.

- *

- * @param[in] usbp      pointer to the @p USBDriver object

- * @param[in] ep        endpoint number, always zero

- *

- * @notapi

- */

-void _usb_ep0out(USBDriver *usbp, usbep_t ep) {

-

-  (void)ep;

-  switch (usbp->ep0state) {

-  case USB_EP0_RX:

-    /* Receive phase over, sending the zero sized status packet.*/

-    usbp->ep0state = USB_EP0_SENDING_STS;

-#if (USB_EP0_STATUS_STAGE == USB_EP0_STATUS_STAGE_SW)

-    osalSysLockFromISR();

-    usbStartTransmitI(usbp, 0, NULL, 0);

-    osalSysUnlockFromISR();

-#else

-    usb_lld_end_setup(usbp, ep);

-#endif

-    return;

-  case USB_EP0_WAITING_STS:

-    /* Status packet received, it must be zero sized, invoking the callback

-       if defined.*/

-#if (USB_EP0_STATUS_STAGE == USB_EP0_STATUS_STAGE_SW)

-    if (usbGetReceiveTransactionSizeX(usbp, 0) != 0U) {

-      break;

-    }

-#endif

-    if (usbp->ep0endcb != NULL) {

-      usbp->ep0endcb(usbp);

-    }

-    usbp->ep0state = USB_EP0_WAITING_SETUP;

-    return;

-  case USB_EP0_WAITING_SETUP:

-  case USB_EP0_TX:

-  case USB_EP0_WAITING_TX0:

-  case USB_EP0_SENDING_STS:

-    /* All the above are invalid states in the IN phase.*/

-    osalDbgAssert(false, "EP0 state machine error");

-    /* Falling through is intentional.*/

-  case USB_EP0_ERROR:

-    /* Error response, the state machine goes into an error state, the low

-       level layer will have to reset it to USB_EP0_WAITING_SETUP after

-       receiving a SETUP packet.*/

-    usb_lld_stall_in(usbp, 0);

-    usb_lld_stall_out(usbp, 0);

-    _usb_isr_invoke_event_cb(usbp, USB_EVENT_STALLED);

-    usbp->ep0state = USB_EP0_ERROR;

-    return;

-  default:

-    osalDbgAssert(false, "EP0 state machine invalid state");

-  }

-}

-

-#endif /* HAL_USE_USB == TRUE */

-

-/** @} */