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https://github.com/CyberMind-FR/secubox-deb.git
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CyberMind-FR
32fecbf010
Smart-Strip v1.1:
- RP2350A MCU with TrustZone-M + AT42QT2120 touch IC
- 6× RGB LEDs (SK6812-MINI-E) + 6 capacitive touch zones
- Dual-mode: USB-C 2.0 (HID+CDC) / I²C (0x42)
- Hamiltonien sweep AUTH→MESH following SecuBox charte
- Parser CDC with whitelist grammar (no eval, no dynamic alloc)
- Interactive HTML simulator included
Build fixes:
- Skip X11/kiosk packages for SECUBOX_LITE=1 profiles
- Skip netdata/glances for lite profiles (ESPRESSObin)
- Skip LXC for lite profiles (limited storage)
- ESPRESSObin image now fits in 3584M (548M compressed)
Files:
- docs/hardware/smart-strip-v1.1.md (550-line spec)
- docs/hardware/smart-strip/simulator.html
- packages/secubox-smart-strip/firmware/{parser,ring_buffer}.{c,h}
- packages/secubox-smart-strip/host/secubox_smart_strip.py
- wiki/Smart-Strip.md
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/*
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* ring_buffer.h - Lock-free single-producer single-consumer FIFO byte buffer
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*
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* Used by the Smart-Strip firmware for:
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* - CDC USB ingress (USB IRQ writes, parser task reads)
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* - Diagnostic log ring (parser writes drops/errors, STATUS cmd reads)
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*
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* Power-of-2 capacity required (mask-based wraparound, no modulo).
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*
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* SecuBox / CyberMind - SBX-STR-01 v1.1
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*/
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#ifndef SBX_RING_BUFFER_H
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#define SBX_RING_BUFFER_H
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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typedef struct {
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uint8_t *buf;
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uint16_t capacity; /* power of 2 */
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uint16_t mask; /* capacity - 1 */
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volatile uint16_t head; /* write index, producer */
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volatile uint16_t tail; /* read index, consumer */
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} rb_t;
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/* Initialise. capacity MUST be a power of 2. Returns false otherwise. */
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bool rb_init(rb_t *rb, uint8_t *storage, uint16_t capacity);
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/* Producer side. Returns number of bytes actually written (may be < len if full). */
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uint16_t rb_write(rb_t *rb, const uint8_t *src, uint16_t len);
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/* Consumer side. Returns number of bytes actually read (may be < len if empty). */
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uint16_t rb_read(rb_t *rb, uint8_t *dst, uint16_t len);
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/* Inspectors (cheap, no locking). */
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uint16_t rb_used(const rb_t *rb);
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uint16_t rb_free(const rb_t *rb);
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bool rb_empty(const rb_t *rb);
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bool rb_full(const rb_t *rb);
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/* Wipe contents. NOT safe to call concurrent with producer/consumer. */
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void rb_reset(rb_t *rb);
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#endif /* SBX_RING_BUFFER_H */
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