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/** @file
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/** @file
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 * @brief   NS16550 port driver.
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 * @brief   NS16550 port driver.
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 */
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 */
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#include <ipc/ipc.h>
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#include <ipc/ipc.h>
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#include <ipc/bus.h>
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#include <async.h>
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#include <async.h>
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#include <sysinfo.h>
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#include <sysinfo.h>
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#include <kbd.h>
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#include <kbd.h>
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#include <kbd_port.h>
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#include <kbd_port.h>
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#include <sun.h>
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#include <ddi.h>
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#include <ddi.h>
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/* NS16550 registers */
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/* NS16550 registers */
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#define RBR_REG     0   /** Receiver Buffer Register. */
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#define RBR_REG     0   /** Receiver Buffer Register. */
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#define IER_REG     1   /** Interrupt Enable Register. */
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#define IER_REG     1   /** Interrupt Enable Register. */
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static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call);
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static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call);
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static uintptr_t ns16550_physical;
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static uintptr_t ns16550_physical;
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static uintptr_t ns16550_kernel;
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static uintptr_t ns16550_kernel;
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int kbd_port_init(void)
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int ns16550_port_init(void)
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{
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{
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    void *vaddr;
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    void *vaddr;
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    async_set_interrupt_received(ns16550_irq_handler);
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    async_set_interrupt_received(ns16550_irq_handler);
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    ns16550_physical = sysinfo_value("kbd.address.physical");
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    ns16550_physical = sysinfo_value("kbd.address.physical");
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    ns16550_kernel = sysinfo_value("kbd.address.kernel");
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    ns16550_kernel = sysinfo_value("kbd.address.kernel");
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    ns16550_kbd.cmds[0].addr = (void *) (ns16550_kernel + LSR_REG);
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    ns16550_kbd.cmds[0].addr = (void *) (ns16550_kernel + LSR_REG);
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    ns16550_kbd.cmds[3].addr = (void *) (ns16550_kernel + RBR_REG);
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    ns16550_kbd.cmds[3].addr = (void *) (ns16550_kernel + RBR_REG);
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    ipc_register_irq(sysinfo_value("kbd.inr"), device_assign_devno(),
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    ipc_register_irq(sysinfo_value("kbd.inr"), device_assign_devno(),
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        0, &ns16550_kbd);
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        sysinfo_value("kbd.inr"), &ns16550_kbd);
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    return pio_enable((void *) ns16550_physical, 8, &vaddr);
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    return pio_enable((void *) ns16550_physical, 8, &vaddr);
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}
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}
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static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call)
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static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call)
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{
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{
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    int scan_code = IPC_GET_ARG2(*call);
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    int scan_code = IPC_GET_ARG2(*call);
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    kbd_push_scancode(scan_code);
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    kbd_push_scancode(scan_code);
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    if (cir_service)
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        async_msg_1(cir_phone, BUS_CLEAR_INTERRUPT,
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            IPC_GET_METHOD(*call));
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}
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}
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/**
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/**
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 * @}
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 * @}
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 */
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 */