70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
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/*
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* CanoKey QEMU device header.
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*
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* Copyright (c) 2021-2022 Canokeys.org <contact@canokeys.org>
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* Written by Hongren (Zenithal) Zheng <i@zenithal.me>
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*
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* This code is licensed under the Apache-2.0.
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*/
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#ifndef CANOKEY_H
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#define CANOKEY_H
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#include "hw/qdev-core.h"
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#define TYPE_CANOKEY "canokey"
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#define CANOKEY(obj) \
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OBJECT_CHECK(CanoKeyState, (obj), TYPE_CANOKEY)
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/*
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* State of Canokey (i.e. hw/canokey.c)
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*/
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/* CTRL INTR BULK */
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#define CANOKEY_EP_NUM 3
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/* BULK/INTR IN can be up to 1352 bytes, e.g. get key info */
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#define CANOKEY_EP_IN_BUFFER_SIZE 2048
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/* BULK OUT can be up to 270 bytes, e.g. PIV import cert */
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#define CANOKEY_EP_OUT_BUFFER_SIZE 512
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typedef enum {
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CANOKEY_EP_IN_WAIT,
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CANOKEY_EP_IN_READY,
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CANOKEY_EP_IN_STALL
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} CanoKeyEPState;
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typedef struct CanoKeyState {
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USBDevice dev;
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/* IN packets from canokey device loop */
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uint8_t ep_in[CANOKEY_EP_NUM][CANOKEY_EP_IN_BUFFER_SIZE];
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/*
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* See canokey_emu_transmit
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*
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* For large INTR IN, receive multiple data from canokey device loop
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* in this case ep_in_size would increase with every call
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*/
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uint32_t ep_in_size[CANOKEY_EP_NUM];
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/*
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* Used in canokey_handle_data
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* for IN larger than p->iov.size, we would do multiple handle_data()
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*
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* The difference between ep_in_pos and ep_in_size:
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* We first increase ep_in_size to fill ep_in buffer in device_loop,
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* then use ep_in_pos to submit data from ep_in buffer in handle_data
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*/
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uint32_t ep_in_pos[CANOKEY_EP_NUM];
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CanoKeyEPState ep_in_state[CANOKEY_EP_NUM];
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/* OUT pointer to canokey recv buffer */
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uint8_t *ep_out[CANOKEY_EP_NUM];
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uint32_t ep_out_size[CANOKEY_EP_NUM];
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/* For large BULK OUT, multiple write to ep_out is needed */
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uint8_t ep_out_buffer[CANOKEY_EP_NUM][CANOKEY_EP_OUT_BUFFER_SIZE];
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/* Properties */
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char *file; /* canokey-file */
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} CanoKeyState;
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#endif /* CANOKEY_H */
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