Subversion Repositories HelenOS

Rev

Rev 3924 | Rev 4026 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3924 Rev 3954
Line 48... Line 48...
48
#define FCR_REG     2   /** FIFO control register (write). */
48
#define FCR_REG     2   /** FIFO control register (write). */
49
#define LCR_REG     3   /** Line Control register. */
49
#define LCR_REG     3   /** Line Control register. */
50
#define MCR_REG     4   /** Modem Control Register. */
50
#define MCR_REG     4   /** Modem Control Register. */
51
#define LSR_REG     5   /** Line Status Register. */
51
#define LSR_REG     5   /** Line Status Register. */
52
 
52
 
-
 
53
#define LSR_DATA_READY  0x01
-
 
54
 
53
irq_cmd_t ns16550_cmds[1] = {
55
static irq_cmd_t ns16550_cmds[] = {
-
 
56
    {
54
    { CMD_PORT_READ_1, 0, 0, 2 },
57
        .cmd = CMD_PIO_READ_8,
-
 
58
        .addr = (void *) 0, /* will be patched in run-time */
-
 
59
        .dstarg = 1
-
 
60
    },
-
 
61
    {
-
 
62
        .cmd = CMD_BTEST,
-
 
63
        .value = LSR_DATA_READY,
-
 
64
        .srcarg = 1,
-
 
65
        .dstarg = 3
-
 
66
    },
-
 
67
    {
-
 
68
        .cmd = CMD_PREDICATE,
-
 
69
        .value = 2,
-
 
70
        .srcarg = 3
-
 
71
    },
-
 
72
    {
-
 
73
        .cmd = CMD_PIO_READ_8,
-
 
74
        .addr = (void *) 0, /* will be patched in run-time */
-
 
75
        .dstarg = 2
-
 
76
    },
-
 
77
    {
-
 
78
        .cmd = CMD_ACCEPT
-
 
79
    }
55
};
80
};
56
 
81
 
57
irq_code_t ns16550_kbd = {
82
irq_code_t ns16550_kbd = {
58
    1,
83
    sizeof(ns16550_cmds) / sizeof(irq_cmd_t),
59
    ns16550_cmds
84
    ns16550_cmds
60
};
85
};
61
 
86
 
62
static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call);
87
static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call);
63
 
88
 
Line 66... Line 91...
66
int kbd_port_init(void)
91
int kbd_port_init(void)
67
{
92
{
68
    async_set_interrupt_received(ns16550_irq_handler);
93
    async_set_interrupt_received(ns16550_irq_handler);
69
 
94
 
70
    ns16550_port = sysinfo_value("kbd.port");
95
    ns16550_port = sysinfo_value("kbd.port");
-
 
96
    ns16550_kbd.cmds[0].addr = (void *) (ns16550_port + LSR_REG);
71
    ns16550_kbd.cmds[0].addr = (void *) (ns16550_port + RBR_REG);
97
    ns16550_kbd.cmds[3].addr = (void *) (ns16550_port + RBR_REG);
72
    ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"),
98
    ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"),
73
        0, &ns16550_kbd);
99
        0, &ns16550_kbd);
74
    iospace_enable(task_get_id(), ns16550_port, 8);
100
    iospace_enable(task_get_id(), ns16550_port, 8);
75
 
101
 
76
    return 0;
102
    return 0;
77
}
103
}
78
 
104
 
79
#define LSR_DATA_READY  0x01
-
 
80
 
-
 
81
static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call)
105
static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call)
82
{
106
{
83
    int scan_code = IPC_GET_ARG2(*call);
107
    int scan_code = IPC_GET_ARG2(*call);
84
    kbd_push_scancode(scan_code);
108
    kbd_push_scancode(scan_code);
85
}
109
}