generic
[Keyboard Service]

HelenOS generic uspace keyboard handler. More...

Files
file	include/kbd.h
file	key_buffer.h
file	keys.h
file	generic/kbd.c
file	key_buffer.c
Data Structures
struct	keybuffer_t
Defines
#define	KEYBUFFER_SIZE   128
#define	KBD_PUSHCHAR   1024
#define	KBD_MS_LEFT   1025
#define	KBD_MS_RIGHT   1026
#define	KBD_MS_MIDDLE   1027
#define	KBD_MS_MOVE   1028
#define	KBD_KEY_F1   0x3b
#define	KBD_KEY_F2   0x3c
#define	KBD_KEY_F3   0x3d
#define	KBD_KEY_F4   0x3e
#define	KBD_KEY_F5   0x3f
#define	KBD_KEY_F6   0x40
#define	KBD_KEY_F7   0x41
#define	KBD_KEY_F8   0x42
#define	KBD_KEY_F9   0x43
#define	KBD_KEY_F10   0x44
#define	KBD_KEY_F11   0x45
#define	KBD_KEY_F12   0x46
#define	NAME   "KBD"
Functions
int	kbd_arch_process (keybuffer_t *keybuffer, ipc_call_t *call)
int	mouse_arch_process (int phoneid, ipc_call_t *call)
void	keybuffer_free (keybuffer_t *keybuffer)
void	keybuffer_init (keybuffer_t *keybuffer)
int	keybuffer_available (keybuffer_t *keybuffer)
int	keybuffer_empty (keybuffer_t *keybuffer)
void	keybuffer_push (keybuffer_t *keybuffer, int key)
int	keybuffer_pop (keybuffer_t *keybuffer, int *c)
static void	irq_handler (ipc_callid_t iid, ipc_call_t *call)
static void	console_connection (ipc_callid_t iid, ipc_call_t *icall)
int	main (int argc, char **argv)
Variables
int	cons_connected = 0
int	phone2cons = -1
keybuffer_t	keybuffer
atomic_t	keybuffer_futex = FUTEX_INITIALIZER

---

Detailed Description

---

Define Documentation

#define KEYBUFFER_SIZE   128

Size of buffer for pressed keys Definition at line 43 of file key_buffer.h. Referenced by keybuffer_available(), keybuffer_pop(), and keybuffer_push().

#define KBD_PUSHCHAR   1024

Definition at line 40 of file keys.h. Referenced by irq_handler(), and keyboard_events().

#define KBD_MS_LEFT   1025

Definition at line 41 of file keys.h. Referenced by keyboard_events(), and mouse_arch_process().

#define KBD_MS_RIGHT   1026

Definition at line 42 of file keys.h. Referenced by mouse_arch_process().

#define KBD_MS_MIDDLE   1027

Definition at line 43 of file keys.h. Referenced by mouse_arch_process().

#define KBD_MS_MOVE   1028

Definition at line 44 of file keys.h. Referenced by keyboard_events(), and mouse_arch_process().

#define KBD_KEY_F1   0x3b

Definition at line 46 of file keys.h.

#define KBD_KEY_F2   0x3c

Definition at line 47 of file keys.h.

#define KBD_KEY_F3   0x3d

Definition at line 48 of file keys.h.

#define KBD_KEY_F4   0x3e

Definition at line 49 of file keys.h.

#define KBD_KEY_F5   0x3f

Definition at line 50 of file keys.h.

#define KBD_KEY_F6   0x40

Definition at line 51 of file keys.h.

#define KBD_KEY_F7   0x41

Definition at line 52 of file keys.h.

#define KBD_KEY_F8   0x42

Definition at line 53 of file keys.h.

#define KBD_KEY_F9   0x43

Definition at line 54 of file keys.h.

#define KBD_KEY_F10   0x44

Definition at line 55 of file keys.h.

#define KBD_KEY_F11   0x45

Definition at line 56 of file keys.h.

#define KBD_KEY_F12   0x46

Definition at line 57 of file keys.h.

#define NAME   "KBD"

Definition at line 53 of file generic/kbd.c.

---

Function Documentation

int kbd_arch_process (  keybuffer_t *  keybuffer, ipc_call_t *  call )

Process keyboard & mouse events Definition at line 450 of file arch/ia32/src/kbd.c. References i8042_MOUSE_DATA, IGNORE_CODE, kbd_arch_init(), key_pressed(), KEY_RELEASE, key_released(), and keybuffer. Referenced by irq_handler(). Here is the call graph for this function:

int mouse_arch_process (  int  phoneid, ipc_call_t *  call )

Process mouse data Returns: True if mouse command was recognized and processed Definition at line 78 of file mouse.c. References async_msg, async_msg_2(), bit9toint(), buf, bufpos, BUFSIZE, ps2packet_t::data, i8042_MOUSE_DATA, KBD_MS_LEFT, KBD_MS_MIDDLE, KBD_MS_MOVE, KBD_MS_RIGHT, leftbtn, middlebtn, rightbtn, ps2packet_t::u, and ps2packet_t::val. Referenced by irq_handler(). Here is the call graph for this function:

void keybuffer_free (  keybuffer_t *  keybuffer  )

Clear key buffer. Definition at line 43 of file key_buffer.c. References futex_down(), futex_up(), keybuffer_t::head, keybuffer_t::items, keybuffer, keybuffer_futex, and keybuffer_t::tail. Referenced by keybuffer_init(). Here is the call graph for this function:

void keybuffer_init (  keybuffer_t *  keybuffer  )

Key buffer initialization. Definition at line 55 of file key_buffer.c. References keybuffer, and keybuffer_free(). Referenced by main(). Here is the call graph for this function:

int keybuffer_available (  keybuffer_t *  keybuffer  )

Get free space in buffer. This function is useful for processing some scancodes that are translated to more than one character. Returns: empty buffer space Definition at line 65 of file key_buffer.c. References keybuffer_t::items, keybuffer, and KEYBUFFER_SIZE.

int keybuffer_empty (  keybuffer_t *  keybuffer  )

Returns: nonzero, if buffer is not empty. Definition at line 73 of file key_buffer.c. References keybuffer_t::items, and keybuffer. Referenced by client_connection(), and irq_handler().

void keybuffer_push (  keybuffer_t *  keybuffer, int  key )

Push key to key buffer. If buffer is full, character is ignored. Parameters: key  code of stored key Definition at line 82 of file key_buffer.c. References keybuffer_t::fifo, futex_down(), futex_up(), keybuffer_t::items, keybuffer, keybuffer_futex, KEYBUFFER_SIZE, and keybuffer_t::tail. Referenced by key_pressed(), and keyboard_events(). Here is the call graph for this function:

int keybuffer_pop (  keybuffer_t *  keybuffer, int *  c )

Pop character from buffer. Parameters: c  pointer to space where to store character from buffer. Returns: zero on empty buffer, nonzero else Definition at line 97 of file key_buffer.c. References keybuffer_t::fifo, futex_down(), futex_up(), keybuffer_t::head, keybuffer_t::items, keybuffer, keybuffer_futex, and KEYBUFFER_SIZE. Referenced by client_connection(), and irq_handler(). Here is the call graph for this function:

static void irq_handler (  ipc_callid_t  iid, ipc_call_t *  call )  [static]

Definition at line 59 of file generic/kbd.c. References async_msg, cons_connected, kbd_arch_process(), KBD_PUSHCHAR, keybuffer, keybuffer_empty(), keybuffer_pop(), mouse_arch_process(), and phone2cons. Referenced by main(). Here is the call graph for this function:

static void console_connection (  ipc_callid_t  iid, ipc_call_t *  icall )  [static]

Definition at line 81 of file generic/kbd.c. References async_get_call(), cons_connected, ipc_answer_fast(), ipc_hangup(), and phone2cons. Referenced by main(). Here is the call graph for this function:

int main (  int  argc, char **  argv )

Definition at line 119 of file generic/kbd.c. References async_manager(), async_set_client_connection(), async_set_interrupt_received(), console_connection(), ipc_connect_to_me(), irq_handler(), kbd_arch_init(), keybuffer, keybuffer_init(), and SERVICE_KEYBOARD. Here is the call graph for this function:

---

Variable Documentation

int cons_connected = 0

Definition at line 55 of file generic/kbd.c. Referenced by console_connection(), and irq_handler().

int phone2cons = -1

Definition at line 56 of file generic/kbd.c. Referenced by console_connection(), and irq_handler().

keybuffer_t keybuffer

Definition at line 57 of file generic/kbd.c. Referenced by irq_handler(), kbd_arch_process(), key_pressed(), keybuffer_available(), keybuffer_empty(), keybuffer_free(), keybuffer_init(), keybuffer_pop(), keybuffer_push(), and main().

atomic_t keybuffer_futex = FUTEX_INITIALIZER

Definition at line 39 of file key_buffer.c. Referenced by keybuffer_free(), keybuffer_pop(), and keybuffer_push().

---