Subversion Repositories HelenOS

Rev

Rev 3743 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3743 Rev 3817
Line 35... Line 35...
35 
 */
 35 
 */
36 
 
 36 
 
37 
#include <arch/drivers/niagara.h>
 37 
#include <arch/drivers/niagara.h>
38 
#include <console/chardev.h>
 38 
#include <console/chardev.h>
39 
#include <console/console.h>
 39 
#include <console/console.h>
- 
 
 40 
#include <arch/drivers/kbd.h>
40 
#include <arch/sun4v/hypercall.h>
 41 
#include <arch/sun4v/hypercall.h>
41 
 
 42 
 
42 
/* functions referenced from definitions of I/O operations structures */
 43 
/* functions referenced from definitions of I/O operations structures */
43 
static void niagara_putchar(chardev_t *, const char);
 44 
static void niagara_putchar(chardev_t *, const char);
- 
 
 45 
static void niagara_noop(chardev_t *);
- 
 
 46 
static char niagara_read(chardev_t *);
44 
 
 47 
 
45 
/** character device operations */
 48 
/** character device operations */
46 
static chardev_operations_t niagara_ops = {
 49 
static chardev_operations_t niagara_ops = {
47 
    .write = niagara_putchar
 50 
    .write = niagara_putchar,
- 
 
 51 
    .suspend = niagara_noop,
- 
 
 52 
    .resume = niagara_noop,
- 
 
 53 
    .read = niagara_read
48 
};
 54 
};
49 
 
 55 
 
50 
/** Niagara character device */
 56 
/** Niagara character device */
51 
chardev_t niagara_io;
 57 
chardev_t niagara_io;
52 
 
 58 
 
- 
 
 59 
/** defined in drivers/kbd.c */
- 
 
 60 
extern kbd_type_t kbd_type;
- 
 
 61 
 
53 
/** Writes a single character to the standard output. */
 62 
/** Writes a single character to the standard output. */
54 
static void niagara_putchar(struct chardev * cd, const char c)
 63 
static void niagara_putchar(struct chardev * cd, const char c)
55 
{
 64 
{
56 
    __hypercall_fast1(CONS_PUTCHAR, c);
 65 
    __hypercall_fast1(CONS_PUTCHAR, c);
57 
    if (c == '\n')
 66 
    if (c == '\n')
58 
        __hypercall_fast1(CONS_PUTCHAR, '\r');
 67 
        __hypercall_fast1(CONS_PUTCHAR, '\r');
59 
}
 68 
}
60 
 
 69 
 
61 
 
 - 
 
62 
/**
 70 
/**
63 
 * Grabs the input for kernel.
 71 
 * Grabs the input for kernel.
64 
 */
 72 
 */
65 
void niagara_grab(void)
 73 
void niagara_grab(void)
66 
{
 74 
{
Line 72... Line 80...
72 
void niagara_release(void)
 80 
void niagara_release(void)
73 
{
 81 
{
74 
}
 82 
}
75 
 
 83 
 
76 
/**
 84 
/**
- 
 
 85 
 * Default suspend/resume operation for the input device.
- 
 
 86 
 */
- 
 
 87 
static void niagara_noop(chardev_t *d)
- 
 
 88 
{
- 
 
 89 
}
- 
 
 90 
 
- 
 
 91 
/**
- 
 
 92 
 * Called when actively reading the character. Not implemented yet.
- 
 
 93 
 */
- 
 
 94 
static char niagara_read(chardev_t *d)
- 
 
 95 
{
- 
 
 96 
    return (char) 0;
- 
 
 97 
}
- 
 
 98 
 
- 
 
 99 
/**
- 
 
 100 
 * Function regularly called by the keyboard polling thread. Asks the
- 
 
 101 
 * hypervisor whether there is any unread character. If so, it picks it up
- 
 
 102 
 * and sends it to the upper layers of HelenOS.
- 
 
 103 
 */
- 
 
 104 
void niagara_poll(void)
- 
 
 105 
{
- 
 
 106 
    uint64_t c = 50;
- 
 
 107 
 
- 
 
 108 
    if (__hypercall_fast_ret1(0, 0, 0, 0, 0, CONS_GETCHAR, &c) == EOK) {
- 
 
 109 
        chardev_push_character(&niagara_io, c);
- 
 
 110 
        if (c == '\r')
- 
 
 111 
            chardev_push_character(&niagara_io, '\n');
- 
 
 112 
    }
- 
 
 113 
 
- 
 
 114 
}
- 
 
 115 
 
- 
 
 116 
/**
77 
 * Initializes the input/output subsystem so that the Niagara standard
 117 
 * Initializes the input/output subsystem so that the Niagara standard
78 
 * input/output is used.
 118 
 * input/output is used.
79 
 */
 119 
 */
80 
void niagara_init(void)
 120 
void niagara_init(void)
81 
{
 121 
{
- 
 
 122 
    kbd_type = KBD_SUN4V;
- 
 
 123 
 
82 
    chardev_initialize("niagara_io", &niagara_io, &niagara_ops);
 124 
    chardev_initialize("niagara_io", &niagara_io, &niagara_ops);
83 
    stdin = &niagara_io;
 125 
    stdin = &niagara_io;
84 
    stdout = &niagara_io;
 126 
    stdout = &niagara_io;
85 
}
 127 
}
86 
 
 128