Руслан Жук – Искра надежды 2 (страница 4)

uint64_t c_imag[4]; // 60-ричные цифры Cy

uint32_t amplitude; // амплитуда модуляции (0-65535)

uint32_t frequency; // частота модуляции (Гц)

};

static long device_ioctl(struct file *file, unsigned int cmd, unsigned long arg) {

struct modulation_params params;

uint32_t gain;

switch (cmd) {

case IOCTL_SET_MODULATION:

if (copy_from_user(&params, (void __user *)arg, sizeof(params)))

return -EFAULT;

// Запись параметров в регистры FPGA

fpga_write_reg(REG_C_REAL, params.c_real);

fpga_write_reg(REG_C_IMAG, params.c_imag);

fpga_write_reg(REG_AMPLITUDE, params.amplitude);

fpga_write_reg(REG_FREQUENCY, params.frequency);

break;

case IOCTL_GET_GAIN:

gain = fpga_read_reg(REG_GAIN);

if (copy_to_user((void __user *)arg, &gain, sizeof(gain)))

return -EFAULT;

break;

default:

return -ENOTTY;

}

return 0;

}

static const struct file_operations fops = {

.owner = THIS_MODULE,

.unlocked_ioctl = device_ioctl,

};

static struct miscdevice misc = {

.minor = MISC_DYNAMIC_MINOR,

.name = DEVICE_NAME,

.fops = &fops,

};

static int __init init(void) {

return misc_register(&misc);

}

static void __exit exit(void) {

misc_deregister(&misc);

}

module_init(init);

module_exit(exit);

MODULE_LICENSE("GPL");

MODULE_DESCRIPTION("Fractal Photonic Core Driver");

```

6.2. Библиотека для работы с фотонным чипом (Rust)

```rust

// photonic_core.rs

use std::fs::{File, OpenOptions};

use std::os::unix::io::AsRawFd;

use libc::{ioctl, _IOW, _IOR};

const IOCTL_SET_MODULATION: u32 = _IOW(0xFC, 1, std::mem::size_of::<ModulationParams>());

const IOCTL_GET_GAIN: u32 = _IOR(0xFC, 2, std::mem::size_of::<u32>());

#[repr(C)]

pub struct ModulationParams {

pub c_real: [u64; 4],

pub c_imag: [u64; 4],

pub amplitude: u32,

pub frequency: u32,

}

pub struct PhotonicCore {

fd: File,

}