| 37,19 → 37,28 |
|---|
| #include <arch/drivers/niagara.h> |
| #include <console/chardev.h> |
| #include <console/console.h> |
| #include <arch/drivers/kbd.h> |
| #include <arch/sun4v/hypercall.h> |
| |
| /* functions referenced from definitions of I/O operations structures */ |
| static void niagara_putchar(chardev_t *, const char); |
| static void niagara_noop(chardev_t *); |
| static char niagara_read(chardev_t *); |
| |
| /** character device operations */ |
| static chardev_operations_t niagara_ops = { |
| .write = niagara_putchar |
| .write = niagara_putchar, |
| .suspend = niagara_noop, |
| .resume = niagara_noop, |
| .read = niagara_read |
| }; |
| |
| /** Niagara character device */ |
| chardev_t niagara_io; |
| |
| /** defined in drivers/kbd.c */ |
| extern kbd_type_t kbd_type; |
| |
| /** Writes a single character to the standard output. */ |
| static void niagara_putchar(struct chardev * cd, const char c) |
| { |
| 58,7 → 67,6 |
|---|
| __hypercall_fast1(CONS_PUTCHAR, '\r'); |
| } |
| |
| |
| /** |
| * Grabs the input for kernel. |
| */ |
| 74,11 → 82,45 |
|---|
| } |
| |
| /** |
| * Default suspend/resume operation for the input device. |
| */ |
| static void niagara_noop(chardev_t *d) |
| { |
| } |
| |
| /** |
| * Called when actively reading the character. Not implemented yet. |
| */ |
| static char niagara_read(chardev_t *d) |
| { |
| return (char) 0; |
| } |
| |
| /** |
| * Function regularly called by the keyboard polling thread. Asks the |
| * hypervisor whether there is any unread character. If so, it picks it up |
| * and sends it to the upper layers of HelenOS. |
| */ |
| void niagara_poll(void) |
| { |
| uint64_t c = 50; |
| |
| if (__hypercall_fast_ret1(0, 0, 0, 0, 0, CONS_GETCHAR, &c) == EOK) { |
| chardev_push_character(&niagara_io, c); |
| if (c == '\r') |
| chardev_push_character(&niagara_io, '\n'); |
| } |
| |
| } |
| |
| /** |
| * Initializes the input/output subsystem so that the Niagara standard |
| * input/output is used. |
| */ |
| void niagara_init(void) |
| { |
| kbd_type = KBD_SUN4V; |
| |
| chardev_initialize("niagara_io", &niagara_io, &niagara_ops); |
| stdin = &niagara_io; |
| stdout = &niagara_io; |