64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
#include <math.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include "pico/stdlib.h"
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#include "pico/usb_device.h"
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#include "configuration_manager.h"
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static uint8_t config_buffer[2][512];
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static uint8_t active_index = 0;
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static bool config_dirty = false;
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static uint16_t write_offset = 0;
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static uint16_t read_offset = 0;
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static uint16_t config_length = 0;
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typedef struct _TLVHeader {
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uint16_t type;
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uint16_t length;
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} TLVHeader;
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typedef struct _ConfigHeaderTLV {
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struct _TLVHeader header;
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uint32_t config_magic;
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uint16_t config_version;
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uint16_t reserved;
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} ConfigHeaderTLV;
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void load_config()
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{
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// Copy data from flash
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uint8_t index = active_index ? 0 : 1;
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// Load data
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active_index = index;
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config_dirty = true;
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}
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void save_config()
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{
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// Write data to flash
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}
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void config_in_packet(struct usb_endpoint *ep) {
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assert(ep->current_transfer);
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struct usb_buffer *buffer = usb_current_in_packet_buffer(ep);
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assert(buffer->data_max >= 3);
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buffer->data_len = 0;
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printf("Config In Packet: Buffer Len: %d, Max: %d\n", buffer->data_len, buffer->data_max);
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memcpy(buffer->data, "Config In Packet", 17);
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buffer->data_len = 64;
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usb_grow_transfer(ep->current_transfer, 1);
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usb_packet_done(ep);
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}
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void config_out_packet(struct usb_endpoint *ep) {
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struct usb_buffer *usb_buffer = usb_current_out_packet_buffer(ep);
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printf("Config Out Packet >>%s<< %d %d %d %d\n", usb_buffer->data, usb_buffer->data_len, ep->current_transfer->completed, ep->current_transfer->remaining_packets_to_handle, ep->current_transfer->remaining_packets_to_submit);
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usb_grow_transfer(ep->current_transfer, 1);
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usb_packet_done(ep);
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} |