128 lines
5.1 KiB
C
128 lines
5.1 KiB
C
/*
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* hid_host_keyboard.c
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*
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* Created on: Mar 25, 2013
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* Author: hathach
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*/
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/*
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* Software License Agreement (BSD License)
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* Copyright (c) 2012, hathach (tinyusb.net)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the tiny usb stack.
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*/
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#include "tusb_option.h"
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#if (MODE_HOST_SUPPORTED && TUSB_CFG_HOST_HID_KEYBOARD)
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#define _TINY_USB_SOURCE_FILE_
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//--------------------------------------------------------------------+
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// INCLUDE
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//--------------------------------------------------------------------+
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#include "common/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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// INTERNAL OBJECT & FUNCTION DECLARATION
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//--------------------------------------------------------------------+
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STATIC_ hidh_keyboard_info_t keyboard_data[TUSB_CFG_HOST_DEVICE_MAX]; // does not have addr0, index = dev_address-1
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static inline keyboard_interface_t* get_kbd_instance(uint8_t dev_addr, uint8_t instance_num) ATTR_PURE ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
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static inline keyboard_interface_t* get_kbd_instance(uint8_t dev_addr, uint8_t instance_num)
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{
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return &keyboard_data[dev_addr-1].instance[instance_num];
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}
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//--------------------------------------------------------------------+
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// IMPLEMENTATION
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//--------------------------------------------------------------------+
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//--------------------------------------------------------------------+
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// PUBLIC API (parameter validation required)
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//--------------------------------------------------------------------+
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tusb_error_t tusbh_hid_keyboard_get(uint8_t const dev_addr, uint8_t instance_num, tusb_keyboard_report_t * const report)
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{
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//------------- parameters validation -------------//
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ASSERT_INT(TUSB_DEVICE_STATE_CONFIGURED, tusbh_device_get_state(dev_addr), TUSB_ERROR_DEVICE_NOT_READY);
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ASSERT_PTR(report, TUSB_ERROR_INVALID_PARA);
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ASSERT(instance_num < keyboard_data[dev_addr-1].instance_count, TUSB_ERROR_INVALID_PARA);
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keyboard_interface_t *p_kbd = get_kbd_instance(dev_addr, instance_num);
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// TODO abtract to use hidh service
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ASSERT_STATUS( hcd_pipe_xfer(p_kbd->pipe_in, (uint8_t*) report, p_kbd->report_size, true) ) ;
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return TUSB_ERROR_NONE;
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}
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uint8_t tusbh_hid_keyboard_no_instances(uint8_t const dev_addr)
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{
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ASSERT(tusbh_device_is_configured(dev_addr), 0);
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return keyboard_data[dev_addr-1].instance_count;
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}
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//--------------------------------------------------------------------+
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// INTERNAL API (no need for parameter validation)
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//--------------------------------------------------------------------+
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void hidh_keyboard_init(void)
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{
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memclr_(&keyboard_data, sizeof(hidh_keyboard_info_t)*TUSB_CFG_HOST_DEVICE_MAX);
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}
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tusb_error_t hidh_keyboard_open_subtask(uint8_t dev_addr, uint8_t const *descriptor, uint16_t *p_length)
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{
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uint8_t const *p_desc = descriptor;
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p_desc += p_desc[DESCRIPTOR_OFFSET_LENGTH]; // skip interface
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p_desc += p_desc[DESCRIPTOR_OFFSET_LENGTH]; // TODO skip HID, only support std keyboard
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// set ASAP, in case of error, p_length has to be not zero to prevent infinite re-open
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(*p_length) = p_desc - descriptor;
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keyboard_interface_t *p_kbd = get_kbd_instance(dev_addr, keyboard_data[dev_addr-1].instance_count);
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ASSERT_INT(TUSB_DESC_ENDPOINT, p_desc[DESCRIPTOR_OFFSET_TYPE], TUSB_ERROR_INVALID_PARA);
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p_kbd->pipe_in = hcd_pipe_open(dev_addr, (tusb_descriptor_endpoint_t*) p_desc, TUSB_CLASS_HID);
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p_desc += p_desc[DESCRIPTOR_OFFSET_LENGTH]; // advance endpoint descriptor
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(*p_length) = p_desc - descriptor;
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ASSERT (pipehandle_is_valid(p_kbd->pipe_in), TUSB_ERROR_HCD_FAILED);
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keyboard_data[dev_addr-1].instance_count++;
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return TUSB_ERROR_NONE;
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}
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#endif
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