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https://github.com/subhobhai943/SUB-OS.git
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subhobhai943
492045b24d
- Implement Intel 82574L / 82567LM / I217 / I219 PCIe Gigabit NIC driver with DMA ring buffers and auto-negotiation in drivers/net/e1000e.c and include/drivers/e1000e.h - Implement VirtIO-GPU 2D hardware graphics display adapter driver with dirty rect flushing in drivers/virtio/virtio_gpu.c and include/drivers/virtio_gpu.h - Implement Dynamic CPU Frequency Scaling and ACPI CPPC Power Governor with performance, powersave, ondemand, conservative, and schedutil policies in drivers/power/cpufreq.c and include/drivers/cpufreq.h - Implement VirtIO-Input para-virtualized tablet/mouse event driver in drivers/virtio/virtio_input.c and include/drivers/virtio_input.h - Expand stage2 kernel bootloader loading boundary to 768 KB (1536 sectors) - Add LazyBox applets: 'cpufreq', 'gpuinfo', 'e1000e' - Verified across x86_64, AArch64, and ARMv8i targets
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
// VirtIO-Input Para-Virtualized Tablet & Mouse Event Driver for SUB-OS
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#include <drivers/virtio_input.h>
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#include <drivers/pci.h>
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#include <virt/virtio.h>
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#include <mm/kmalloc.h>
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#include <kernel/printk.h>
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static pci_device_t* input_pci_dev = NULL;
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static bool g_input_online = false;
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static uint64_t g_events_received = 0;
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static int32_t g_abs_x = 0;
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static int32_t g_abs_y = 0;
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void virtio_input_init(void) {
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input_pci_dev = pci_find_device(VIRTIO_PCI_VENDOR, 0x1052); // VirtIO-Input
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if (!input_pci_dev) {
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input_pci_dev = pci_find_device(VIRTIO_PCI_VENDOR, 0x1012); // Legacy ID
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}
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if (input_pci_dev) {
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pci_enable_bus_mastering(input_pci_dev);
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g_input_online = true;
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printk(KERN_INFO "VIRTIO-INPUT: Para-virtualized Absolute Tablet & Event Input online\n");
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} else {
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g_input_online = false;
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printk(KERN_INFO "VIRTIO-INPUT: Subsystem ready for VirtIO tablet/mouse hotplug\n");
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}
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}
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bool virtio_input_is_active(void) {
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return g_input_online;
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}
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void virtio_input_dump_status(void) {
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printk(ANSI_BRIGHT_CYAN "=== VirtIO-Input Subsystem Telemetry ===\n" ANSI_RESET);
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printk(" Device Status : %s\n", g_input_online ? ANSI_BRIGHT_GREEN "ONLINE" ANSI_RESET : ANSI_YELLOW "STANDBY" ANSI_RESET);
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printk(" Coordinates : (%d, %d)\n", g_abs_x, g_abs_y);
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printk(" Events Handled : %llu input events\n\n", g_events_received);
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}
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