845daaddda
* SDK1.3.0 specific (requiring) changes - Fixup TinyUSB build for 0.12.0, and add back standalone examples for device/host (copied from TinyUSB)
297 lines
9.7 KiB
C
297 lines
9.7 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021, 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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*/
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#include "bsp/board.h"
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#include "tusb.h"
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM DECLARATION
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//--------------------------------------------------------------------+
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// If your host terminal support ansi escape code such as TeraTerm
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// it can be use to simulate mouse cursor movement within terminal
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#define USE_ANSI_ESCAPE 0
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#define MAX_REPORT 4
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static uint8_t const keycode2ascii[128][2] = { HID_KEYCODE_TO_ASCII };
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// Each HID instance can has multiple reports
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static struct
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{
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uint8_t report_count;
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tuh_hid_report_info_t report_info[MAX_REPORT];
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}hid_info[CFG_TUH_HID];
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static void process_kbd_report(hid_keyboard_report_t const *report);
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static void process_mouse_report(hid_mouse_report_t const * report);
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static void process_generic_report(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len);
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void hid_app_task(void)
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{
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// nothing to do
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}
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//--------------------------------------------------------------------+
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// TinyUSB Callbacks
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//--------------------------------------------------------------------+
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// Invoked when device with hid interface is mounted
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// Report descriptor is also available for use. tuh_hid_parse_report_descriptor()
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// can be used to parse common/simple enough descriptor.
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// Note: if report descriptor length > CFG_TUH_ENUMERATION_BUFSIZE, it will be skipped
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// therefore report_desc = NULL, desc_len = 0
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void tuh_hid_mount_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* desc_report, uint16_t desc_len)
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{
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printf("HID device address = %d, instance = %d is mounted\r\n", dev_addr, instance);
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// Interface protocol (hid_interface_protocol_enum_t)
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const char* protocol_str[] = { "None", "Keyboard", "Mouse" };
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uint8_t const itf_protocol = tuh_hid_interface_protocol(dev_addr, instance);
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printf("HID Interface Protocol = %s\r\n", protocol_str[itf_protocol]);
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// By default host stack will use activate boot protocol on supported interface.
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// Therefore for this simple example, we only need to parse generic report descriptor (with built-in parser)
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if ( itf_protocol == HID_ITF_PROTOCOL_NONE )
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{
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hid_info[instance].report_count = tuh_hid_parse_report_descriptor(hid_info[instance].report_info, MAX_REPORT, desc_report, desc_len);
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printf("HID has %u reports \r\n", hid_info[instance].report_count);
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}
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// request to receive report
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// tuh_hid_report_received_cb() will be invoked when report is available
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if ( !tuh_hid_receive_report(dev_addr, instance) )
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{
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printf("Error: cannot request to receive report\r\n");
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}
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}
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// Invoked when device with hid interface is un-mounted
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void tuh_hid_umount_cb(uint8_t dev_addr, uint8_t instance)
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{
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printf("HID device address = %d, instance = %d is unmounted\r\n", dev_addr, instance);
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}
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// Invoked when received report from device via interrupt endpoint
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void tuh_hid_report_received_cb(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len)
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{
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uint8_t const itf_protocol = tuh_hid_interface_protocol(dev_addr, instance);
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switch (itf_protocol)
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{
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case HID_ITF_PROTOCOL_KEYBOARD:
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TU_LOG2("HID receive boot keyboard report\r\n");
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process_kbd_report( (hid_keyboard_report_t const*) report );
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break;
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case HID_ITF_PROTOCOL_MOUSE:
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TU_LOG2("HID receive boot mouse report\r\n");
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process_mouse_report( (hid_mouse_report_t const*) report );
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break;
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default:
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// Generic report requires matching ReportID and contents with previous parsed report info
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process_generic_report(dev_addr, instance, report, len);
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break;
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}
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// continue to request to receive report
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if ( !tuh_hid_receive_report(dev_addr, instance) )
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{
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printf("Error: cannot request to receive report\r\n");
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}
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}
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//--------------------------------------------------------------------+
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// Keyboard
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//--------------------------------------------------------------------+
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// look up new key in previous keys
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static inline bool find_key_in_report(hid_keyboard_report_t const *report, uint8_t keycode)
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{
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for(uint8_t i=0; i<6; i++)
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{
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if (report->keycode[i] == keycode) return true;
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}
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return false;
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}
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static void process_kbd_report(hid_keyboard_report_t const *report)
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{
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static hid_keyboard_report_t prev_report = { 0, 0, {0} }; // previous report to check key released
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//------------- example code ignore control (non-printable) key affects -------------//
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for(uint8_t i=0; i<6; i++)
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{
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if ( report->keycode[i] )
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{
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if ( find_key_in_report(&prev_report, report->keycode[i]) )
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{
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// exist in previous report means the current key is holding
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}else
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{
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// not existed in previous report means the current key is pressed
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bool const is_shift = report->modifier & (KEYBOARD_MODIFIER_LEFTSHIFT | KEYBOARD_MODIFIER_RIGHTSHIFT);
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uint8_t ch = keycode2ascii[report->keycode[i]][is_shift ? 1 : 0];
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putchar(ch);
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if ( ch == '\r' ) putchar('\n'); // added new line for enter key
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fflush(stdout); // flush right away, else nanolib will wait for newline
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}
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}
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// TODO example skips key released
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}
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prev_report = *report;
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}
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//--------------------------------------------------------------------+
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// Mouse
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//--------------------------------------------------------------------+
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void cursor_movement(int8_t x, int8_t y, int8_t wheel)
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{
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#if USE_ANSI_ESCAPE
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// Move X using ansi escape
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if ( x < 0)
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{
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printf(ANSI_CURSOR_BACKWARD(%d), (-x)); // move left
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}else if ( x > 0)
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{
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printf(ANSI_CURSOR_FORWARD(%d), x); // move right
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}
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// Move Y using ansi escape
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if ( y < 0)
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{
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printf(ANSI_CURSOR_UP(%d), (-y)); // move up
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}else if ( y > 0)
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{
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printf(ANSI_CURSOR_DOWN(%d), y); // move down
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}
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// Scroll using ansi escape
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if (wheel < 0)
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{
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printf(ANSI_SCROLL_UP(%d), (-wheel)); // scroll up
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}else if (wheel > 0)
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{
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printf(ANSI_SCROLL_DOWN(%d), wheel); // scroll down
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}
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printf("\r\n");
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#else
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printf("(%d %d %d)\r\n", x, y, wheel);
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#endif
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}
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static void process_mouse_report(hid_mouse_report_t const * report)
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{
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static hid_mouse_report_t prev_report = { 0 };
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//------------- button state -------------//
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uint8_t button_changed_mask = report->buttons ^ prev_report.buttons;
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if ( button_changed_mask & report->buttons)
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{
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printf(" %c%c%c ",
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report->buttons & MOUSE_BUTTON_LEFT ? 'L' : '-',
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report->buttons & MOUSE_BUTTON_MIDDLE ? 'M' : '-',
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report->buttons & MOUSE_BUTTON_RIGHT ? 'R' : '-');
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}
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//------------- cursor movement -------------//
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cursor_movement(report->x, report->y, report->wheel);
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}
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//--------------------------------------------------------------------+
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// Generic Report
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//--------------------------------------------------------------------+
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static void process_generic_report(uint8_t dev_addr, uint8_t instance, uint8_t const* report, uint16_t len)
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{
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(void) dev_addr;
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uint8_t const rpt_count = hid_info[instance].report_count;
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tuh_hid_report_info_t* rpt_info_arr = hid_info[instance].report_info;
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tuh_hid_report_info_t* rpt_info = NULL;
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if ( rpt_count == 1 && rpt_info_arr[0].report_id == 0)
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{
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// Simple report without report ID as 1st byte
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rpt_info = &rpt_info_arr[0];
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}else
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{
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// Composite report, 1st byte is report ID, data starts from 2nd byte
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uint8_t const rpt_id = report[0];
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// Find report id in the arrray
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for(uint8_t i=0; i<rpt_count; i++)
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{
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if (rpt_id == rpt_info_arr[i].report_id )
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{
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rpt_info = &rpt_info_arr[i];
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break;
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}
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}
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report++;
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len--;
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}
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if (!rpt_info)
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{
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printf("Couldn't find the report info for this report !\r\n");
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return;
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}
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// For complete list of Usage Page & Usage checkout src/class/hid/hid.h. For examples:
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// - Keyboard : Desktop, Keyboard
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// - Mouse : Desktop, Mouse
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// - Gamepad : Desktop, Gamepad
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// - Consumer Control (Media Key) : Consumer, Consumer Control
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// - System Control (Power key) : Desktop, System Control
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// - Generic (vendor) : 0xFFxx, xx
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if ( rpt_info->usage_page == HID_USAGE_PAGE_DESKTOP )
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{
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switch (rpt_info->usage)
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{
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case HID_USAGE_DESKTOP_KEYBOARD:
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TU_LOG1("HID receive keyboard report\r\n");
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// Assume keyboard follow boot report layout
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process_kbd_report( (hid_keyboard_report_t const*) report );
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break;
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case HID_USAGE_DESKTOP_MOUSE:
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TU_LOG1("HID receive mouse report\r\n");
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// Assume mouse follow boot report layout
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process_mouse_report( (hid_mouse_report_t const*) report );
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break;
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default: break;
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}
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}
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}
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