TermiNexus
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VKernel / vpsdk / Apps / Libs 共 30 个源文件：内核与 SDK 侧的新语法适配及编译修正（含 bootinfo.vp / main.vp 位宽改 uint64、gfx.vp 前向引用改指针、devfs.vp 指针解引用赋值、elf.vp 跨模块函数取值等）。删除 vpsdk/wiki/*.md（14 文件，约 -8100 行）：与仓库根 wiki 重复的拷贝，统一以根 wiki 为唯一来源。
120 lines
4.3 KiB
Plaintext
120 lines
4.3 KiB
Plaintext
import t, c
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import drivers.usb.usb as usb
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import drivers.usb.hid.hid as hid
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import drivers.usb.uhci as uhci
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import drivers.serial.uart.serial as serial
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define KBD_BUF_SIZE = 1024
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define KBD_EVT_PRESS = 0
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define KBD_EVT_RELEASE = 1
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class usb_kbd_event:
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modifier: uint8
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keycode: uint8
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event_type: uint8
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kbd_buf: [KBD_BUF_SIZE]usb_kbd_event
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kbd_buf_head: int = 0
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kbd_buf_tail: int = 0
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kbd_buf_count: int = 0
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kbd_dev: usb.usb_device* = None
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kbd_report: hid.hid_kbd_report
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kbd_prev_keycodes: [6]uint8
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kbd_initialized: int = 0
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kbd_slot_id: int = -1
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def init() -> int:
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global kbd_dev, kbd_initialized, kbd_slot_id
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dev: usb.usb_device* = usb.find_hid_device(0x01)
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if dev is None:
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serial.puts("[usb_kbd] no USB keyboard found\n")
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return -1
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kbd_dev = dev
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if hid.init_keyboard(dev) != 0:
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serial.puts("[usb_kbd] init failed\n")
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return -2
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kbd_initialized = 1
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serial.puts("[usb_kbd] initialized\n")
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kbd_slot_id = uhci.register_int_callback(&_on_int_complete)
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if kbd_slot_id < 0:
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serial.puts("[usb_kbd] register callback failed\n")
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kbd_initialized = 0
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return -3
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# 中断传输长度不得超过 kbd_report(8 字节)，否则 DMA 越界写全局
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kbd_pkt_len: uint8 = 8
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if dev.ep_in_max < 8: kbd_pkt_len = uint8(dev.ep_in_max)
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uhci.schedule_int_transfer(kbd_slot_id, dev.addr, dev.ep_in, dev.ls, kbd_pkt_len, dev.ep_in_toggle, &kbd_report)
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return 0
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def _on_int_complete() -> int:
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global kbd_buf_head, kbd_buf_tail, kbd_buf_count, kbd_prev_keycodes
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if kbd_initialized == 0: return 0
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j: int
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for i in range(6):
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code: uint8 = kbd_report.keycode[i]
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if code == 0: continue
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found: int = 0
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for j in range(6):
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if code == kbd_prev_keycodes[j]:
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found = 1
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break
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if found == 0:
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if kbd_buf_count < KBD_BUF_SIZE:
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kbd_buf[kbd_buf_tail].modifier = kbd_report.modifier
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kbd_buf[kbd_buf_tail].keycode = code
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kbd_buf[kbd_buf_tail].event_type = KBD_EVT_PRESS
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kbd_buf_tail = kbd_buf_tail + 1
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if kbd_buf_tail >= KBD_BUF_SIZE:
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kbd_buf_tail = 0
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kbd_buf_count += 1
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for i in range(6):
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prev: uint8 = kbd_prev_keycodes[i]
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if prev == 0: continue
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found2: int = 0
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for j in range(6):
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if prev == kbd_report.keycode[j]:
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found2 = 1
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break
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if found2 == 0:
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if kbd_buf_count < KBD_BUF_SIZE:
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kbd_buf[kbd_buf_tail].modifier = kbd_report.modifier
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kbd_buf[kbd_buf_tail].keycode = prev
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kbd_buf[kbd_buf_tail].event_type = KBD_EVT_RELEASE
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kbd_buf_tail = kbd_buf_tail + 1
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if kbd_buf_tail >= KBD_BUF_SIZE:
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kbd_buf_tail = 0
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kbd_buf_count += 1
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for i in range(6):
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kbd_prev_keycodes[i] = kbd_report.keycode[i]
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dev: usb.usb_device* = kbd_dev
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if dev is not None and kbd_slot_id >= 0:
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kbd_pkt_len2: uint8 = 8
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if dev.ep_in_max < 8: kbd_pkt_len2 = uint8(dev.ep_in_max)
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# 推进 DATA0/DATA1 翻转位：本回调表示上一次中断 IN 事务已结束（IRQ 中 TD 不再
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# ACTIVE），翻转后本次重排使用另一 PID。全仓仅此处推进 ep_in_toggle；不推进
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# 则 TD token 的 toggle 位恒为 DATA0，DATA toggle 永不交替。
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dev.ep_in_toggle = uint8(dev.ep_in_toggle ^ 1)
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uhci.schedule_int_transfer(kbd_slot_id, dev.addr, dev.ep_in, dev.ls, kbd_pkt_len2, dev.ep_in_toggle, &kbd_report)
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return 0
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def has_data() -> int:
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if kbd_buf_count > 0: return 1
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return 0
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def poll() -> int:
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if kbd_initialized == 0: return 0
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if kbd_buf_count > 0: return 1
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return 0
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def read_event(out: usb_kbd_event*) -> int:
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global kbd_buf_head, kbd_buf_count
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if kbd_buf_count == 0: return -1
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out.modifier = kbd_buf[kbd_buf_head].modifier
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out.keycode = kbd_buf[kbd_buf_head].keycode
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out.event_type = kbd_buf[kbd_buf_head].event_type
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kbd_buf_head = kbd_buf_head + 1
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if kbd_buf_head >= KBD_BUF_SIZE:
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kbd_buf_head = 0
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kbd_buf_count -= 1
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return 0
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