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27 lines
1007 B
27 lines
1007 B
#ifndef __USB_STATE
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#define __USB_STATE
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#include "ch376.h"
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#include "protocol.h"
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#include <stdlib.h>
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#define MAX_NUMBER_OF_DEVICES 6
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#define DEVICE_CONFIG_STRUCT_SIZE sizeof(device_config_storage) /* Assumes is largest struct */
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typedef struct __usb_state {
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uint8_t active : 1; /* if true, a usb operation/interrupt handler is active, prevent re-entrant */
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uint8_t reserved : 7;
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uint8_t count_of_detected_usb_devices;
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uint8_t device_configs[DEVICE_CONFIG_STRUCT_SIZE * MAX_NUMBER_OF_DEVICES];
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uint8_t device_configs_end; // always zero to mark end
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} _usb_state;
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extern device_config *find_first_free(void);
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extern device_config *first_device_config(const _usb_state *const p) __sdcccall(1);
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extern device_config *next_device_config(const _usb_state *const usb_state, const device_config *const p) __sdcccall(1);
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extern device_config *find_device_config(const usb_device_type requested_type);
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extern device_config *get_usb_device_config(const uint8_t device_index) __sdcccall(1);
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#endif
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