Index: uspace/lib/usb/src/hidreport.c =================================================================== --- uspace/lib/usb/src/hidreport.c (revision 8c40822153459d782738d88d76b430861410675e) +++ uspace/lib/usb/src/hidreport.c (revision 8c40822153459d782738d88d76b430861410675e) @@ -0,0 +1,228 @@ +/* + * Copyright (c) 2011 Lubos Slovak + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup libusb + * @{ + */ +/** + * @file + * USB HID keyboard device structure and API. + */ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +static int usb_hid_get_report_descriptor(usb_device_t *dev, + uint8_t **report_desc, size_t *size) +{ + assert(report_desc != NULL); + assert(size != NULL); + + usb_dp_parser_t parser = { + .nesting = usb_dp_standard_descriptor_nesting + }; + + usb_dp_parser_data_t parser_data = { + .data = dev->descriptors.configuration, + .size = dev->descriptors.configuration_size, + .arg = NULL + }; + + /* + * First nested descriptor of the configuration descriptor. + */ + uint8_t *d = + usb_dp_get_nested_descriptor(&parser, &parser_data, + dev->descriptors.configuration); + + /* + * Find the interface descriptor corresponding to our interface number. + */ + int i = 0; + while (d != NULL && i < dev->interface_no) { + d = usb_dp_get_sibling_descriptor(&parser, &parser_data, + dev->descriptors.configuration, d); + } + + if (d == NULL) { + usb_log_error("The %d. interface descriptor not found!\n", + dev->interface_no); + return ENOENT; + } + + /* + * First nested descriptor of the interface descriptor. + */ + uint8_t *iface_desc = d; + d = usb_dp_get_nested_descriptor(&parser, &parser_data, iface_desc); + + /* + * Search through siblings until the HID descriptor is found. + */ + while (d != NULL && *(d + 1) != USB_DESCTYPE_HID) { + d = usb_dp_get_sibling_descriptor(&parser, &parser_data, + iface_desc, d); + } + + if (d == NULL) { + usb_log_fatal("No HID descriptor found!\n"); + return ENOENT; + } + + if (*d != sizeof(usb_standard_hid_descriptor_t)) { + usb_log_error("HID descriptor hass wrong size (%u, expected %u" + ")\n", *d, sizeof(usb_standard_hid_descriptor_t)); + return EINVAL; + } + + usb_standard_hid_descriptor_t *hid_desc = + (usb_standard_hid_descriptor_t *)d; + + uint16_t length = hid_desc->report_desc_info.length; + size_t actual_size = 0; + + /* + * Start session for the control transfer. + */ + int sess_rc = usb_pipe_start_session(&dev->ctrl_pipe); + if (sess_rc != EOK) { + usb_log_warning("Failed to start a session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + /* + * Allocate space for the report descriptor. + */ + *report_desc = (uint8_t *)malloc(length); + if (*report_desc == NULL) { + usb_log_error("Failed to allocate space for Report descriptor." + "\n"); + return ENOMEM; + } + + usb_log_debug("Getting Report descriptor, expected size: %u\n", length); + + /* + * Get the descriptor from the device. + */ + int rc = usb_request_get_descriptor(&dev->ctrl_pipe, + USB_REQUEST_TYPE_STANDARD, USB_REQUEST_RECIPIENT_INTERFACE, + USB_DESCTYPE_HID_REPORT, 0, dev->interface_no, + *report_desc, length, &actual_size); + + if (rc != EOK) { + free(*report_desc); + *report_desc = NULL; + return rc; + } + + if (actual_size != length) { + free(*report_desc); + *report_desc = NULL; + usb_log_error("Report descriptor has wrong size (%u, expected " + "%u)\n", actual_size, length); + return EINVAL; + } + + /* + * End session for the control transfer. + */ + sess_rc = usb_pipe_end_session(&dev->ctrl_pipe); + if (sess_rc != EOK) { + usb_log_warning("Failed to end a session: %s.\n", + str_error(sess_rc)); + free(*report_desc); + *report_desc = NULL; + return sess_rc; + } + + *size = length; + + usb_log_debug("Done.\n"); + + return EOK; +} + +/*----------------------------------------------------------------------------*/ + +int usb_hid_process_report_descriptor(usb_device_t *dev, + usb_hid_report_parser_t *parser) +{ + if (dev == NULL || parser == NULL) { + usb_log_error("Failed to process Report descriptor: wrong " + "parameters given.\n"); + return EINVAL; + } + + uint8_t *report_desc = NULL; + size_t report_size; + + int rc = usb_hid_get_report_descriptor(dev, &report_desc, + &report_size); + + if (rc != EOK) { + usb_log_error("Problem with getting Report descriptor: %s.\n", + str_error(rc)); + if (report_desc != NULL) { + free(report_desc); + } + return rc; + } + + assert(report_desc != NULL); + + rc = usb_hid_parse_report_descriptor(parser, report_desc, report_size); + if (rc != EOK) { + usb_log_error("Problem parsing Report descriptor: %s.\n", + str_error(rc)); + free(report_desc); + return rc; + } + + usb_hid_descriptor_print(parser); + free(report_desc); + + return EOK; +} + +/** + * @} + */ Index: uspace/lib/usb/src/hidreq.c =================================================================== --- uspace/lib/usb/src/hidreq.c (revision 8c40822153459d782738d88d76b430861410675e) +++ uspace/lib/usb/src/hidreq.c (revision 8c40822153459d782738d88d76b430861410675e) @@ -0,0 +1,479 @@ +/* + * Copyright (c) 2011 Lubos Slovak + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup drvusbhid + * @{ + */ +/** @file + * HID class-specific requests. + */ + +#include +#include +#include + +#include +#include +#include +#include + +#include + +/*----------------------------------------------------------------------------*/ +/** + * Send Set Report request to the HID device. + * + * @param hid_dev HID device to send the request to. + * @param type Type of the report. + * @param buffer Report data. + * @param buf_size Report data size (in bytes). + * + * @retval EOK if successful. + * @retval EINVAL if no HID device is given. + * @return Other value inherited from one of functions + * usb_pipe_start_session(), usb_pipe_end_session(), + * usb_control_request_set(). + */ +int usbhid_req_set_report(usb_pipe_t *ctrl_pipe, int iface_no, + usb_hid_report_type_t type, uint8_t *buffer, size_t buf_size) +{ + if (ctrl_pipe == NULL) { + usb_log_warning("usbhid_req_set_report(): no pipe given.\n"); + return EINVAL; + } + + if (iface_no < 0) { + usb_log_warning("usbhid_req_set_report(): no interface given." + "\n"); + return EINVAL; + } + + /* + * No need for checking other parameters, as they are checked in + * the called function (usb_control_request_set()). + */ + + int rc, sess_rc; + + sess_rc = usb_pipe_start_session(ctrl_pipe); + if (sess_rc != EOK) { + usb_log_warning("Failed to start a session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + uint16_t value = 0; + value |= (type << 8); + + usb_log_debug("Sending Set_Report request to the device.\n"); + + rc = usb_control_request_set(ctrl_pipe, + USB_REQUEST_TYPE_CLASS, USB_REQUEST_RECIPIENT_INTERFACE, + USB_HIDREQ_SET_REPORT, value, iface_no, buffer, buf_size); + + sess_rc = usb_pipe_end_session(ctrl_pipe); + + if (rc != EOK) { + usb_log_warning("Error sending output report to the keyboard: " + "%s.\n", str_error(rc)); + return rc; + } + + if (sess_rc != EOK) { + usb_log_warning("Error closing session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + return EOK; +} + +/*----------------------------------------------------------------------------*/ +/** + * Send Set Protocol request to the HID device. + * + * @param hid_dev HID device to send the request to. + * @param protocol Protocol to set. + * + * @retval EOK if successful. + * @retval EINVAL if no HID device is given. + * @return Other value inherited from one of functions + * usb_pipe_start_session(), usb_pipe_end_session(), + * usb_control_request_set(). + */ +int usbhid_req_set_protocol(usb_pipe_t *ctrl_pipe, int iface_no, + usb_hid_protocol_t protocol) +{ + if (ctrl_pipe == NULL) { + usb_log_warning("usbhid_req_set_report(): no pipe given.\n"); + return EINVAL; + } + + if (iface_no < 0) { + usb_log_warning("usbhid_req_set_report(): no interface given." + "\n"); + return EINVAL; + } + + /* + * No need for checking other parameters, as they are checked in + * the called function (usb_control_request_set()). + */ + + int rc, sess_rc; + + sess_rc = usb_pipe_start_session(ctrl_pipe); + if (sess_rc != EOK) { + usb_log_warning("Failed to start a session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + usb_log_debug("Sending Set_Protocol request to the device (" + "protocol: %d, iface: %d).\n", protocol, iface_no); + + rc = usb_control_request_set(ctrl_pipe, + USB_REQUEST_TYPE_CLASS, USB_REQUEST_RECIPIENT_INTERFACE, + USB_HIDREQ_SET_PROTOCOL, protocol, iface_no, NULL, 0); + + sess_rc = usb_pipe_end_session(ctrl_pipe); + + if (rc != EOK) { + usb_log_warning("Error sending output report to the keyboard: " + "%s.\n", str_error(rc)); + return rc; + } + + if (sess_rc != EOK) { + usb_log_warning("Error closing session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + return EOK; +} + +/*----------------------------------------------------------------------------*/ +/** + * Send Set Idle request to the HID device. + * + * @param hid_dev HID device to send the request to. + * @param duration Duration value (is multiplicated by 4 by the device to + * get real duration in miliseconds). + * + * @retval EOK if successful. + * @retval EINVAL if no HID device is given. + * @return Other value inherited from one of functions + * usb_pipe_start_session(), usb_pipe_end_session(), + * usb_control_request_set(). + */ +int usbhid_req_set_idle(usb_pipe_t *ctrl_pipe, int iface_no, uint8_t duration) +{ + if (ctrl_pipe == NULL) { + usb_log_warning("usbhid_req_set_report(): no pipe given.\n"); + return EINVAL; + } + + if (iface_no < 0) { + usb_log_warning("usbhid_req_set_report(): no interface given." + "\n"); + return EINVAL; + } + + /* + * No need for checking other parameters, as they are checked in + * the called function (usb_control_request_set()). + */ + + int rc, sess_rc; + + sess_rc = usb_pipe_start_session(ctrl_pipe); + if (sess_rc != EOK) { + usb_log_warning("Failed to start a session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + usb_log_debug("Sending Set_Idle request to the device (" + "duration: %u, iface: %d).\n", duration, iface_no); + + uint16_t value = duration << 8; + + rc = usb_control_request_set(ctrl_pipe, + USB_REQUEST_TYPE_CLASS, USB_REQUEST_RECIPIENT_INTERFACE, + USB_HIDREQ_SET_IDLE, value, iface_no, NULL, 0); + + sess_rc = usb_pipe_end_session(ctrl_pipe); + + if (rc != EOK) { + usb_log_warning("Error sending output report to the keyboard: " + "%s.\n", str_error(rc)); + return rc; + } + + if (sess_rc != EOK) { + usb_log_warning("Error closing session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + return EOK; +} + +/*----------------------------------------------------------------------------*/ +/** + * Send Get Report request to the HID device. + * + * @param[in] hid_dev HID device to send the request to. + * @param[in] type Type of the report. + * @param[in][out] buffer Buffer for the report data. + * @param[in] buf_size Size of the buffer (in bytes). + * @param[out] actual_size Actual size of report received from the device + * (in bytes). + * + * @retval EOK if successful. + * @retval EINVAL if no HID device is given. + * @return Other value inherited from one of functions + * usb_pipe_start_session(), usb_pipe_end_session(), + * usb_control_request_set(). + */ +int usbhid_req_get_report(usb_pipe_t *ctrl_pipe, int iface_no, + usb_hid_report_type_t type, uint8_t *buffer, size_t buf_size, + size_t *actual_size) +{ + if (ctrl_pipe == NULL) { + usb_log_warning("usbhid_req_set_report(): no pipe given.\n"); + return EINVAL; + } + + if (iface_no < 0) { + usb_log_warning("usbhid_req_set_report(): no interface given." + "\n"); + return EINVAL; + } + + /* + * No need for checking other parameters, as they are checked in + * the called function (usb_control_request_set()). + */ + + int rc, sess_rc; + + sess_rc = usb_pipe_start_session(ctrl_pipe); + if (sess_rc != EOK) { + usb_log_warning("Failed to start a session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + uint16_t value = 0; + value |= (type << 8); + + usb_log_debug("Sending Get_Report request to the device.\n"); + + rc = usb_control_request_get(ctrl_pipe, + USB_REQUEST_TYPE_CLASS, USB_REQUEST_RECIPIENT_INTERFACE, + USB_HIDREQ_GET_REPORT, value, iface_no, buffer, buf_size, + actual_size); + + sess_rc = usb_pipe_end_session(ctrl_pipe); + + if (rc != EOK) { + usb_log_warning("Error sending output report to the keyboard: " + "%s.\n", str_error(rc)); + return rc; + } + + if (sess_rc != EOK) { + usb_log_warning("Error closing session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + return EOK; +} + +/*----------------------------------------------------------------------------*/ +/** + * Send Get Protocol request to the HID device. + * + * @param[in] hid_dev HID device to send the request to. + * @param[out] protocol Current protocol of the device. + * + * @retval EOK if successful. + * @retval EINVAL if no HID device is given. + * @return Other value inherited from one of functions + * usb_pipe_start_session(), usb_pipe_end_session(), + * usb_control_request_set(). + */ +int usbhid_req_get_protocol(usb_pipe_t *ctrl_pipe, int iface_no, + usb_hid_protocol_t *protocol) +{ + if (ctrl_pipe == NULL) { + usb_log_warning("usbhid_req_set_report(): no pipe given.\n"); + return EINVAL; + } + + if (iface_no < 0) { + usb_log_warning("usbhid_req_set_report(): no interface given." + "\n"); + return EINVAL; + } + + /* + * No need for checking other parameters, as they are checked in + * the called function (usb_control_request_set()). + */ + + int rc, sess_rc; + + sess_rc = usb_pipe_start_session(ctrl_pipe); + if (sess_rc != EOK) { + usb_log_warning("Failed to start a session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + usb_log_debug("Sending Get_Protocol request to the device (" + "iface: %d).\n", iface_no); + + uint8_t buffer[1]; + size_t actual_size = 0; + + rc = usb_control_request_get(ctrl_pipe, + USB_REQUEST_TYPE_CLASS, USB_REQUEST_RECIPIENT_INTERFACE, + USB_HIDREQ_GET_PROTOCOL, 0, iface_no, buffer, 1, &actual_size); + + sess_rc = usb_pipe_end_session(ctrl_pipe); + + if (rc != EOK) { + usb_log_warning("Error sending output report to the keyboard: " + "%s.\n", str_error(rc)); + return rc; + } + + if (sess_rc != EOK) { + usb_log_warning("Error closing session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + if (actual_size != 1) { + usb_log_warning("Wrong data size: %zu, expected: 1.\n", + actual_size); + return ELIMIT; + } + + *protocol = buffer[0]; + + return EOK; +} + +/*----------------------------------------------------------------------------*/ +/** + * Send Get Idle request to the HID device. + * + * @param[in] hid_dev HID device to send the request to. + * @param[out] duration Duration value (multiplicate by 4 to get real duration + * in miliseconds). + * + * @retval EOK if successful. + * @retval EINVAL if no HID device is given. + * @return Other value inherited from one of functions + * usb_pipe_start_session(), usb_pipe_end_session(), + * usb_control_request_set(). + */ +int usbhid_req_get_idle(usb_pipe_t *ctrl_pipe, int iface_no, uint8_t *duration) +{ + if (ctrl_pipe == NULL) { + usb_log_warning("usbhid_req_set_report(): no pipe given.\n"); + return EINVAL; + } + + if (iface_no < 0) { + usb_log_warning("usbhid_req_set_report(): no interface given." + "\n"); + return EINVAL; + } + + /* + * No need for checking other parameters, as they are checked in + * the called function (usb_control_request_set()). + */ + + int rc, sess_rc; + + sess_rc = usb_pipe_start_session(ctrl_pipe); + if (sess_rc != EOK) { + usb_log_warning("Failed to start a session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + usb_log_debug("Sending Get_Idle request to the device (" + "iface: %d).\n", iface_no); + + uint16_t value = 0; + uint8_t buffer[1]; + size_t actual_size = 0; + + rc = usb_control_request_get(ctrl_pipe, + USB_REQUEST_TYPE_CLASS, USB_REQUEST_RECIPIENT_INTERFACE, + USB_HIDREQ_GET_IDLE, value, iface_no, buffer, 1, + &actual_size); + + sess_rc = usb_pipe_end_session(ctrl_pipe); + + if (rc != EOK) { + usb_log_warning("Error sending output report to the keyboard: " + "%s.\n", str_error(rc)); + return rc; + } + + if (sess_rc != EOK) { + usb_log_warning("Error closing session: %s.\n", + str_error(sess_rc)); + return sess_rc; + } + + if (actual_size != 1) { + usb_log_warning("Wrong data size: %zu, expected: 1.\n", + actual_size); + return ELIMIT; + } + + *duration = buffer[0]; + + return EOK; +} + +/*----------------------------------------------------------------------------*/ + +/** + * @} + */