1 files changed, 151 insertions, 0 deletions
diff --git a/src/class/printer/printer_device.h b/src/class/printer/printer_device.h
new file mode 100644
index 000000000..afde1f022
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+++ b/src/class/printer/printer_device.h
@@ -0,0 +1,151 @@
+/*
+ * 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_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "printer.h"
+
+//--------------------------------------------------------------------+
+// Configuration
+//--------------------------------------------------------------------+
+#ifndef CFG_TUD_PRINTER_RX_EPSIZE
+  #define CFG_TUD_PRINTER_RX_EPSIZE TUD_EPSIZE_BULK_MAX
+#endif
+
+#ifndef CFG_TUD_PRINTER_TX_EPSIZE
+  #define CFG_TUD_PRINTER_TX_EPSIZE TUD_EPSIZE_BULK_MAX
+#endif
+
+//--------------------------------------------------------------------+
+// Application API (Multiple Ports) i.e. CFG_TUD_PRINTER > 1
+//--------------------------------------------------------------------+
+
+// Get the number of bytes available for reading
+uint32_t tud_printer_n_read_available(uint8_t itf);
+
+// Read received bytes
+uint32_t tud_printer_n_read(uint8_t itf, void *buffer, uint32_t bufsize);
+
+// Get the number of bytes available for writing
+uint32_t tud_printer_n_write_available(uint8_t itf);
+
+// 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);
+
+// Write data to host
+uint32_t tud_printer_n_write(uint8_t itf, const void *buffer, uint32_t bufsize);
+
+// Force sending data in the TX FIFO
+uint32_t tud_printer_n_write_flush(uint8_t itf);
+
+// Clear the transmit FIFO
+bool tud_printer_n_write_clear(uint8_t itf);
+
+//--------------------------------------------------------------------+
+// Application API (Single Port)
+//--------------------------------------------------------------------+
+
+TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_printer_read_available(void) {
+  return tud_printer_n_read_available(0);
+}
+
+TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_printer_write_available(void) {
+  return tud_printer_n_write_available(0);
+}
+
+TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_printer_read(void *buffer, uint32_t bufsize) {
+  return tud_printer_n_read(0, buffer, bufsize);
+}
+
+TU_ATTR_ALWAYS_INLINE static inline void tud_printer_read_flush(void) {
+  tud_printer_n_read_flush(0);
+}
+
+TU_ATTR_ALWAYS_INLINE static inline bool tud_printer_peek(uint8_t *ui8) {
+  return tud_printer_n_peek(0, ui8);
+}
+
+TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_printer_write(const void *buffer, uint32_t bufsize) {
+  return tud_printer_n_write(0, buffer, bufsize);
+}
+
+TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_printer_write_flush(void) {
+  return tud_printer_n_write_flush(0);
+}
+
+TU_ATTR_ALWAYS_INLINE static inline bool tud_printer_write_clear(void) {
+  return tud_printer_n_write_clear(0);
+}
+
+//--------------------------------------------------------------------+
+// Application Callback API (weak is optional)
+//--------------------------------------------------------------------+
+
+// Invoked when received new data
+void tud_printer_rx_cb(uint8_t itf);
+
+// Invoked when last write transfer is completed
+void tud_printer_tx_complete_cb(uint8_t itf);
+
+// Invoked when host requests device ID string (IEEE 1284).
+// Application returns pointer to device ID buffer (must remain valid until transfer completes).
+// First 2 bytes of returned buffer must contain big-endian length (including the 2 length bytes).
+const uint8_t *tud_printer_get_device_id_cb(uint8_t itf);
+
+// Invoked when host requests port status.
+uint8_t tud_printer_get_port_status_cb(uint8_t itf);
+
+// Invoked when host requests soft reset.
+void tud_printer_soft_reset_cb(uint8_t itf);
+
+// Invoked when a control request is completed (GET_DEVICE_ID, GET_PORT_STATUS, etc.)
+void tud_printer_request_complete_cb(uint8_t itf, tusb_control_request_t const *request);
+
+
+//--------------------------------------------------------------------+
+// 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