290 lines
9.6 KiB
C
290 lines
9.6 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "tusb_option.h"
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#if (TUSB_OPT_HOST_ENABLED && HOST_CLASS_HID)
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#include "common/tusb_common.h"
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#include "hid_host.h"
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF
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//--------------------------------------------------------------------+
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//--------------------------------------------------------------------+
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// HID Interface common functions
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//--------------------------------------------------------------------+
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static inline bool hidh_interface_open(uint8_t dev_addr, uint8_t interface_number, tusb_desc_endpoint_t const *p_endpoint_desc, hidh_interface_info_t *p_hid)
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{
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p_hid->pipe_hdl = hcd_edpt_open(dev_addr, p_endpoint_desc, TUSB_CLASS_HID);
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p_hid->report_size = p_endpoint_desc->wMaxPacketSize.size; // TODO get size from report descriptor
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p_hid->interface_number = interface_number;
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TU_ASSERT (pipehandle_is_valid(p_hid->pipe_hdl));
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return true;
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}
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static inline void hidh_interface_close(hidh_interface_info_t *p_hid)
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{
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tu_memclr(p_hid, sizeof(hidh_interface_info_t));
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}
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// called from public API need to validate parameters
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tusb_error_t hidh_interface_get_report(uint8_t dev_addr, void * report, hidh_interface_info_t *p_hid)
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{
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//------------- parameters validation -------------//
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// TODO change to use is configured function
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TU_ASSERT (TUSB_DEVICE_STATE_CONFIGURED == tuh_device_get_state(dev_addr), TUSB_ERROR_DEVICE_NOT_READY);
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TU_VERIFY (report, TUSB_ERROR_INVALID_PARA);
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TU_ASSERT (!hcd_edpt_busy(p_hid->pipe_hdl), TUSB_ERROR_INTERFACE_IS_BUSY);
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TU_ASSERT_ERR( hcd_pipe_xfer(p_hid->pipe_hdl, report, p_hid->report_size, true) ) ;
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return TUSB_ERROR_NONE;
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}
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//--------------------------------------------------------------------+
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// KEYBOARD
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//--------------------------------------------------------------------+
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#if CFG_TUH_HID_KEYBOARD
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#if 0
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#define EXPAND_KEYCODE_TO_ASCII(keycode, ascii, shift_modified) \
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[0][keycode] = ascii,\
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[1][keycode] = shift_modified,\
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// TODO size of table should be a macro for application to check boundary
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uint8_t const hid_keycode_to_ascii_tbl[2][128] =
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{
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HID_KEYCODE_TABLE(EXPAND_KEYCODE_TO_ASCII)
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};
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#endif
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static hidh_interface_info_t keyboardh_data[CFG_TUSB_HOST_DEVICE_MAX]; // does not have addr0, index = dev_address-1
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//------------- KEYBOARD PUBLIC API (parameter validation required) -------------//
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bool tuh_hid_keyboard_is_mounted(uint8_t dev_addr)
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{
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return tuh_device_is_configured(dev_addr) && pipehandle_is_valid(keyboardh_data[dev_addr-1].pipe_hdl);
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}
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tusb_error_t tuh_hid_keyboard_get_report(uint8_t dev_addr, void* p_report)
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{
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return hidh_interface_get_report(dev_addr, p_report, &keyboardh_data[dev_addr-1]);
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}
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bool tuh_hid_keyboard_is_busy(uint8_t dev_addr)
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{
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return tuh_hid_keyboard_is_mounted(dev_addr) &&
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hcd_edpt_busy( keyboardh_data[dev_addr-1].pipe_hdl );
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}
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#endif
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//--------------------------------------------------------------------+
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// MOUSE
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//--------------------------------------------------------------------+
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#if CFG_TUH_HID_MOUSE
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static hidh_interface_info_t mouseh_data[CFG_TUSB_HOST_DEVICE_MAX]; // does not have addr0, index = dev_address-1
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//------------- Public API -------------//
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bool tuh_hid_mouse_is_mounted(uint8_t dev_addr)
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{
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return tuh_device_is_configured(dev_addr) && pipehandle_is_valid(mouseh_data[dev_addr-1].pipe_hdl);
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}
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bool tuh_hid_mouse_is_busy(uint8_t dev_addr)
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{
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return tuh_hid_mouse_is_mounted(dev_addr) &&
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hcd_edpt_busy( mouseh_data[dev_addr-1].pipe_hdl );
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}
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tusb_error_t tuh_hid_mouse_get_report(uint8_t dev_addr, void * report)
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{
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return hidh_interface_get_report(dev_addr, report, &mouseh_data[dev_addr-1]);
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}
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#endif
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//--------------------------------------------------------------------+
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// GENERIC
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//--------------------------------------------------------------------+
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#if CFG_TUSB_HOST_HID_GENERIC
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//STATIC_ struct {
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// hidh_interface_info_t
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//} generic_data[CFG_TUSB_HOST_DEVICE_MAX];
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#endif
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//--------------------------------------------------------------------+
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// CLASS-USBH API (don't require to verify parameters)
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//--------------------------------------------------------------------+
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void hidh_init(void)
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{
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#if CFG_TUH_HID_KEYBOARD
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tu_memclr(&keyboardh_data, sizeof(hidh_interface_info_t)*CFG_TUSB_HOST_DEVICE_MAX);
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#endif
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#if CFG_TUH_HID_MOUSE
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tu_memclr(&mouseh_data, sizeof(hidh_interface_info_t)*CFG_TUSB_HOST_DEVICE_MAX);
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#endif
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#if CFG_TUSB_HOST_HID_GENERIC
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hidh_generic_init();
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#endif
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}
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#if 0
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CFG_TUSB_MEM_SECTION uint8_t report_descriptor[256];
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#endif
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bool hidh_open_subtask(uint8_t dev_addr, tusb_desc_interface_t const *p_interface_desc, uint16_t *p_length)
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{
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uint8_t const *p_desc = (uint8_t const *) p_interface_desc;
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//------------- HID descriptor -------------//
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p_desc += p_desc[DESC_OFFSET_LEN];
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tusb_hid_descriptor_hid_t const *p_desc_hid = (tusb_hid_descriptor_hid_t const *) p_desc;
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TU_ASSERT(HID_DESC_TYPE_HID == p_desc_hid->bDescriptorType, TUSB_ERROR_INVALID_PARA);
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//------------- Endpoint Descriptor -------------//
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p_desc += p_desc[DESC_OFFSET_LEN];
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tusb_desc_endpoint_t const * p_endpoint_desc = (tusb_desc_endpoint_t const *) p_desc;
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TU_ASSERT(TUSB_DESC_ENDPOINT == p_endpoint_desc->bDescriptorType, TUSB_ERROR_INVALID_PARA);
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//------------- SET IDLE (0) request -------------//
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tusb_control_request_t request = {
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.bmRequestType_bit = { .recipient = TUSB_REQ_RCPT_INTERFACE, .type = TUSB_REQ_TYPE_CLASS, .direction = TUSB_DIR_OUT },
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.bRequest = HID_REQ_CONTROL_SET_IDLE,
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.wValue = 0, // idle_rate = 0
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.wIndex = p_interface_desc->bInterfaceNumber,
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.wLength = 0
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};
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TU_ASSERT( usbh_control_xfer( dev_addr, &request, NULL ) );
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#if 0
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//------------- Get Report Descriptor TODO HID parser -------------//
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if ( p_desc_hid->bNumDescriptors )
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{
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STASK_INVOKE(
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usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_IN, TUSB_REQ_TYPE_STANDARD, TUSB_REQ_RCPT_INTERFACE),
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TUSB_REQ_GET_DESCRIPTOR, (p_desc_hid->bReportType << 8), 0,
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p_desc_hid->wReportLength, report_descriptor ),
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error
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);
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(void) error; // if error in getting report descriptor --> treating like there is none
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}
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#endif
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if ( HID_SUBCLASS_BOOT == p_interface_desc->bInterfaceSubClass )
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{
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#if CFG_TUH_HID_KEYBOARD
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if ( HID_PROTOCOL_KEYBOARD == p_interface_desc->bInterfaceProtocol)
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{
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TU_ASSERT( hidh_interface_open(dev_addr, p_interface_desc->bInterfaceNumber, p_endpoint_desc, &keyboardh_data[dev_addr-1]) );
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tuh_hid_keyboard_mounted_cb(dev_addr);
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} else
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#endif
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#if CFG_TUH_HID_MOUSE
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if ( HID_PROTOCOL_MOUSE == p_interface_desc->bInterfaceProtocol)
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{
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TU_ASSERT ( hidh_interface_open(dev_addr, p_interface_desc->bInterfaceNumber, p_endpoint_desc, &mouseh_data[dev_addr-1]) );
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tuh_hid_mouse_mounted_cb(dev_addr);
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} else
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#endif
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{
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// Not supported protocol
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return false;
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}
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}else
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{
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// Not supported subclass
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return false;
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}
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*p_length = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + sizeof(tusb_desc_endpoint_t);
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return true;
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}
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void hidh_isr(pipe_handle_t pipe_hdl, xfer_result_t event, uint32_t xferred_bytes)
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{
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(void) xferred_bytes; // TODO may need to use this para later
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#if CFG_TUH_HID_KEYBOARD
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if ( pipehandle_is_equal(pipe_hdl, keyboardh_data[pipe_hdl.dev_addr-1].pipe_hdl) )
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{
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tuh_hid_keyboard_isr(pipe_hdl.dev_addr, event);
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return;
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}
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#endif
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#if CFG_TUH_HID_MOUSE
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if ( pipehandle_is_equal(pipe_hdl, mouseh_data[pipe_hdl.dev_addr-1].pipe_hdl) )
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{
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tuh_hid_mouse_isr(pipe_hdl.dev_addr, event);
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return;
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}
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#endif
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#if CFG_TUSB_HOST_HID_GENERIC
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#endif
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}
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void hidh_close(uint8_t dev_addr)
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{
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#if CFG_TUH_HID_KEYBOARD
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if ( pipehandle_is_valid( keyboardh_data[dev_addr-1].pipe_hdl ) )
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{
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hidh_interface_close(&keyboardh_data[dev_addr-1]);
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tuh_hid_keyboard_unmounted_cb(dev_addr);
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}
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#endif
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#if CFG_TUH_HID_MOUSE
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if( pipehandle_is_valid( mouseh_data[dev_addr-1].pipe_hdl ) )
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{
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hidh_interface_close(&mouseh_data[dev_addr-1]);
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tuh_hid_mouse_unmounted_cb( dev_addr );
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}
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#endif
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#if CFG_TUSB_HOST_HID_GENERIC
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hidh_generic_close(dev_addr);
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#endif
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}
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#endif
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