77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/*
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* Copyright (c) 2024, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef USBH_CH34X_H
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#define USBH_CH34X_H
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#include "usb_cdc.h"
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/* Requests */
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#define CH34X_READ_VERSION 0x5F
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#define CH34X_WRITE_REG 0x9A
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#define CH34X_READ_REG 0x95
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#define CH34X_SERIAL_INIT 0xA1
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#define CH34X_MODEM_CTRL 0xA4
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// modem control bits
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#define CH34X_BIT_RTS (1 << 6)
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#define CH34X_BIT_DTR (1 << 5)
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#define CH341_CTO_O 0x10
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#define CH341_CTO_D 0x20
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#define CH341_CTO_R 0x40
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#define CH341_CTI_C 0x01
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#define CH341_CTI_DS 0x02
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#define CH341_CTRL_RI 0x04
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#define CH341_CTI_DC 0x08
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#define CH341_CTI_ST 0x0f
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#define CH341_L_ER 0x80
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#define CH341_L_ET 0x40
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#define CH341_L_PS 0x38
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#define CH341_L_PM 0x28
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#define CH341_L_PE 0x18
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#define CH341_L_PO 0x08
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#define CH341_L_SB 0x04
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#define CH341_L_D8 0x03
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#define CH341_L_D7 0x02
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#define CH341_L_D6 0x01
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#define CH341_L_D5 0x00
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struct usbh_ch34x {
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struct usbh_hubport *hport;
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struct usb_endpoint_descriptor *bulkin; /* Bulk IN endpoint */
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struct usb_endpoint_descriptor *bulkout; /* Bulk OUT endpoint */
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struct usbh_urb bulkout_urb;
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struct usbh_urb bulkin_urb;
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struct cdc_line_coding line_coding;
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uint8_t intf;
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uint8_t minor;
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void *user_data;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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int usbh_ch34x_set_line_coding(struct usbh_ch34x *ch34x_class, struct cdc_line_coding *line_coding);
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int usbh_ch34x_get_line_coding(struct usbh_ch34x *ch34x_class, struct cdc_line_coding *line_coding);
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int usbh_ch34x_set_line_state(struct usbh_ch34x *ch34x_class, bool dtr, bool rts);
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int usbh_ch34x_bulk_in_transfer(struct usbh_ch34x *ch34x_class, uint8_t *buffer, uint32_t buflen, uint32_t timeout);
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int usbh_ch34x_bulk_out_transfer(struct usbh_ch34x *ch34x_class, uint8_t *buffer, uint32_t buflen, uint32_t timeout);
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void usbh_ch34x_run(struct usbh_ch34x *ch34x_class);
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void usbh_ch34x_stop(struct usbh_ch34x *ch34x_class);
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#ifdef __cplusplus
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}
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#endif
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#endif /* USBH_CH34X_H */
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