From cab1b2f6f741ea151e87f139b2115d5234228bbd Mon Sep 17 00:00:00 2001 From: Rémi Berthoz Date: Sun, 4 Jan 2026 16:55:43 +0100 Subject: Implement Printer Device Class --- src/class/printer/printer_device.h | 79 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 src/class/printer/printer_device.h (limited to 'src/class/printer/printer_device.h') diff --git a/src/class/printer/printer_device.h b/src/class/printer/printer_device.h new file mode 100644 index 000000000..8c21e39ce --- /dev/null +++ b/src/class/printer/printer_device.h @@ -0,0 +1,79 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2026 Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * This file is part of the TinyUSB stack. + */ + +#ifndef TUSB_PRINTER_DEVICE_H_ +#define TUSB_PRINTER_DEVICE_H_ + +#include "printer.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct TU_ATTR_PACKED { + uint8_t rx_persistent : 1; // keep rx fifo on bus reset or disconnect + uint8_t tx_persistent : 1; // keep tx fifo on bus reset or disconnect +} tud_printer_configure_fifo_t; + +//--------------------------------------------------------------------+ +// Application API (Multiple Ports) i.e. CFG_TUD_PRINTER > 1 +//--------------------------------------------------------------------+ + +// Get the number of bytes available for reading +uint32_t tud_printer_n_available(uint8_t itf); + +// Read received bytes +uint32_t tud_printer_n_read(uint8_t itf, void *buffer, uint32_t bufsize); + +// Clear the received FIFO +void tud_printer_n_read_flush(uint8_t itf); + +// Get a byte from FIFO without removing it +bool tud_printer_n_peek(uint8_t itf, uint8_t *ui8); + +//--------------------------------------------------------------------+ +// Application Callback API (weak is optional) +//--------------------------------------------------------------------+ + +// Invoked when received new data +TU_ATTR_WEAK void tud_printer_rx_cb(uint8_t itf, size_t n); + +//--------------------------------------------------------------------+ +// Internal Class Driver API +//--------------------------------------------------------------------+ +void printerd_init(void); +bool printerd_deinit(void); +void printerd_reset(uint8_t rhport); +uint16_t printerd_open(uint8_t rhport, const tusb_desc_interface_t *itf_desc, uint16_t max_len); +bool printerd_control_xfer_cb(uint8_t rhport, uint8_t stage, const tusb_control_request_t *request); +bool printerd_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes); + + +#ifdef __cplusplus +} +#endif + +#endif -- cgit v1.3.1