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-rw-r--r--os/hal/src/usb.c107
1 files changed, 21 insertions, 86 deletions
diff --git a/os/hal/src/usb.c b/os/hal/src/usb.c
index 44a772ab1..30919580c 100644
--- a/os/hal/src/usb.c
+++ b/os/hal/src/usb.c
@@ -309,7 +309,7 @@ void usbInitEndpointI(USBDriver *usbp, usbep_t ep,
chDbgCheck((usbp != NULL) && (epcp != NULL), "usbInitEndpointI");
chDbgAssert(usbp->state == USB_ACTIVE,
"usbEnableEndpointI(), #1", "invalid state");
- chDbgAssert(usbp->epc[ep] != NULL,
+ chDbgAssert(usbp->epc[ep] == NULL,
"usbEnableEndpointI(), #2", "already initialized");
/* Logically enabling the endpoint in the USBDriver structure.*/
@@ -352,126 +352,54 @@ void usbDisableEndpointsI(USBDriver *usbp) {
}
/**
- * @brief Reads a packet from the dedicated packet buffer.
- * @pre In order to use this function he endpoint must have been
- * initialized in packet mode.
- * @post The endpoint is ready to accept another packet.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- * @param[in] ep endpoint number
- * @param[out] buf buffer where to copy the packet data
- * @param[in] n maximum number of bytes to copy. This value must
- * not exceed the maximum packet size for this endpoint.
- * @return The received packet size regardless the specified
- * @p n parameter.
- * @retval USB_ENDPOINT_BUSY Endpoint busy receiving.
- * @retval 0 Zero size packet received.
- *
- * @iclass
- */
-size_t usbReadPacketI(USBDriver *usbp, usbep_t ep,
- uint8_t *buf, size_t n) {
-
- chDbgCheckClassI();
- chDbgCheck((usbp != NULL) && (buf != NULL), "usbReadPacketI");
-
- if (usbGetReceiveStatusI(usbp, ep))
- return USB_ENDPOINT_BUSY;
-
- usbp->receiving |= (1 << ep);
- return usb_lld_read_packet(usbp, ep, buf, n);;
-}
-
-/**
- * @brief Writes a packet to the dedicated packet buffer.
- * @pre In order to use this function he endpoint must have been
- * initialized in packet mode.
- * @post The endpoint is ready to transmit the packet.
- *
- * @param[in] usbp pointer to the @p USBDriver object
- * @param[in] ep endpoint number
- * @param[in] buf buffer where to fetch the packet data
- * @param[in] n maximum number of bytes to copy. This value must
- * not exceed the maximum packet size for this endpoint.
- * @return The operation status.
- * @retval USB_ENDPOINT_BUSY Endpoint busy transmitting.
- * @retval 0 Operation complete.
- *
- * @iclass
- */
-size_t usbWritePacketI(USBDriver *usbp, usbep_t ep,
- const uint8_t *buf, size_t n) {
-
- chDbgCheckClassI();
- chDbgCheck((usbp != NULL) && (buf != NULL), "usbWritePacketI");
-
- if (usbGetTransmitStatusI(usbp, ep))
- return USB_ENDPOINT_BUSY;
-
- usbp->transmitting |= (1 << ep);
- usb_lld_write_packet(usbp, ep, buf, n);
- return 0;
-}
-
-/**
* @brief Starts a receive transaction on an OUT endpoint.
- * @pre In order to use this function he endpoint must have been
- * initialized in transaction mode.
* @post The endpoint callback is invoked when the transfer has been
* completed.
*
* @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 maximum number of bytes to copy
* @return The operation status.
* @retval FALSE Operation started successfully.
* @retval TRUE Endpoint busy, operation not started.
*
* @iclass
*/
-bool_t usbStartReceiveI(USBDriver *usbp, usbep_t ep,
- uint8_t *buf, size_t n) {
+bool_t usbStartReceiveI(USBDriver *usbp, usbep_t ep) {
chDbgCheckClassI();
- chDbgCheck((usbp != NULL) && (buf != NULL), "usbStartReceiveI");
+ chDbgCheck(usbp != NULL, "usbStartReceiveI");
if (usbGetReceiveStatusI(usbp, ep))
return TRUE;
usbp->receiving |= (1 << ep);
- usb_lld_start_out(usbp, ep, buf, n);
+ usb_lld_start_out(usbp, ep);
return FALSE;
}
/**
* @brief Starts a transmit transaction on an IN endpoint.
- * @pre In order to use this function he endpoint must have been
- * initialized in transaction mode.
* @post The endpoint callback is invoked when the transfer has been
* completed.
*
* @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 maximum number of bytes to copy
* @return The operation status.
* @retval FALSE Operation started successfully.
* @retval TRUE Endpoint busy, operation not started.
*
* @iclass
*/
-bool_t usbStartTransmitI(USBDriver *usbp, usbep_t ep,
- const uint8_t *buf, size_t n) {
+bool_t usbStartTransmitI(USBDriver *usbp, usbep_t ep) {
chDbgCheckClassI();
- chDbgCheck((usbp != NULL) && (buf != NULL), "usbStartTransmitI");
+ chDbgCheck(usbp != NULL, "usbStartTransmitI");
if (usbGetTransmitStatusI(usbp, ep))
return TRUE;
usbp->transmitting |= (1 << ep);
- usb_lld_start_in(usbp, ep, buf, n);
+ usb_lld_start_in(usbp, ep);
return FALSE;
}
@@ -597,13 +525,15 @@ void _usb_ep0setup(USBDriver *usbp, usbep_t ep) {
if (usbp->ep0n > 0) {
/* Starts the transmit phase.*/
usbp->ep0state = USB_EP0_TX;
- usb_lld_start_in(usbp, 0, usbp->ep0next, usbp->ep0n);
+ usb_lld_prepare_transmit(usbp, 0, usbp->ep0next, usbp->ep0n);
+ usb_lld_start_in(usbp, 0);
}
else {
/* No transmission phase, directly receiving the zero sized status
packet.*/
usbp->ep0state = USB_EP0_WAITING_STS;
- usb_lld_start_out(usbp, 0, NULL, 0);
+ usb_lld_prepare_receive(usbp, 0, NULL, 0);
+ usb_lld_start_out(usbp, 0);
}
}
else {
@@ -611,13 +541,15 @@ void _usb_ep0setup(USBDriver *usbp, usbep_t ep) {
if (usbp->ep0n > 0) {
/* Starts the receive phase.*/
usbp->ep0state = USB_EP0_RX;
- usb_lld_start_out(usbp, 0, usbp->ep0next, usbp->ep0n);
+ usb_lld_prepare_receive(usbp, 0, usbp->ep0next, usbp->ep0n);
+ usb_lld_start_out(usbp, 0);
}
else {
/* No receive phase, directly sending the zero sized status
packet.*/
usbp->ep0state = USB_EP0_SENDING_STS;
- usb_lld_start_in(usbp, 0, NULL, 0);
+ usb_lld_prepare_transmit(usbp, 0, NULL, 0);
+ usb_lld_start_in(usbp, 0);
}
}
}
@@ -644,13 +576,15 @@ void _usb_ep0in(USBDriver *usbp, usbep_t ep) {
transmitted.*/
if ((usbp->ep0n < max) &&
((usbp->ep0n % usbp->epc[0]->in_maxsize) == 0)) {
- usb_lld_start_in(usbp, 0, NULL, 0);
+ usb_lld_prepare_transmit(usbp, 0, NULL, 0);
+ usb_lld_start_in(usbp, 0);
return;
}
/* Transmit phase over, receiving the zero sized status packet.*/
usbp->ep0state = USB_EP0_WAITING_STS;
- usb_lld_start_out(usbp, 0, NULL, 0);
+ usb_lld_prepare_receive(usbp, 0, NULL, 0);
+ usb_lld_start_out(usbp, 0);
return;
case USB_EP0_SENDING_STS:
/* Status packet sent, invoking the callback if defined.*/
@@ -687,7 +621,8 @@ void _usb_ep0out(USBDriver *usbp, usbep_t ep) {
case USB_EP0_RX:
/* Receive phase over, sending the zero sized status packet.*/
usbp->ep0state = USB_EP0_SENDING_STS;
- usb_lld_start_in(usbp, 0, NULL, 0);
+ usb_lld_prepare_transmit(usbp, 0, NULL, 0);
+ usb_lld_start_in(usbp, 0);
return;
case USB_EP0_WAITING_STS:
/* Status packet received, it must be zero sized, invoking the callback
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 07:05:09 +0000