ps2.c File Reference

#include <kernel/drivers/hpet.h>
#include <kernel/drivers/ps2/ps2.h>
#include <kernel/drivers/ps2/ps2_kbd.h>
#include <kernel/drivers/ps2/ps2_mouse.h>
#include <kernel/acpi/tables.h>
#include <kernel/log/log.h>
#include <kernel/log/panic.h>
#include <kernel/sched/timer.h>
#include <errno.h>
#include <string.h>

Go to the source code of this file.

Macros
#define	PS2_KNOWN_DEVICE_AMOUNT   (sizeof(knownDevices) / sizeof(knownDevices[0]))

Functions
static const char *	ps2_device_test_response_to_string (ps2_device_test_response_t response)
static const char *	ps2_self_test_response_to_string (ps2_self_test_response_t response)
static const char *	ps2_device_to_string (ps2_device_t device)
static const char *	ps2_device_type_to_string (ps2_device_type_t type)
static uint64_t	ps2_set_initial_config (ps2_config_bits_t *cfg)
static uint64_t	ps2_self_test (void)
static uint64_t	ps2_check_if_dual_channel (void)
static uint64_t	ps2_devices_test (void)
static uint64_t	ps2_device_init (ps2_device_t device)
void	ps2_init (void)
	Initialize the PS/2 controller.
void	ps2_drain (void)
	Drain the PS/2 output buffer.
uint64_t	ps2_wait_until_set (ps2_status_bits_t status)
	Wait until status bit(s) is set.
uint64_t	ps2_wait_until_clear (ps2_status_bits_t status)
	Wait until status bit(s) is clear.
uint64_t	ps2_send_cmd (ps2_cmd_t command)
	Send a command to the PS/2 controller.
uint64_t	ps2_send_device_cmd (ps2_device_t device, ps2_device_cmd_t command)
	Send a command to a PS/2 device.

Variables
static bool	isDualChannel = false
static ps2_device_info_t	devices [PS2_DEV_COUNT] = {0}
static const ps2_device_info_t	knownDevices []

Macro Definition Documentation

PS2_KNOWN_DEVICE_AMOUNT

#define PS2_KNOWN_DEVICE_AMOUNT   (sizeof(knownDevices) / sizeof(knownDevices[0]))

Definition at line 28 of file ps2.c.

Function Documentation

ps2_check_if_dual_channel()

static uint64_t ps2_check_if_dual_channel ( void  )

static

Definition at line 146 of file ps2.c.

References ERR, isDualChannel, LOG_ERR, LOG_INFO, PS2_CFG_SECOND_CLOCK_DISABLE, PS2_CMD_AND_READ, PS2_CMD_CFG_READ, PS2_CMD_SECOND_DISABLE, PS2_CMD_SECOND_ENABLE, and ps2_send_cmd().

Referenced by ps2_init().

ps2_device_init()

static uint64_t ps2_device_init ( ps2_device_t  device )

static

Definition at line 226 of file ps2.c.

References devices, EOK, ERR, errno, ETIMEDOUT, ps2_device_info_t::firstIdByte, hpet_wait(), info, knownDevices, LOG_ERR, LOG_INFO, ps2_device_info_t::name, fb_info_t::name, PS2_DEV_CMD, PS2_DEV_CMD_AND_READ, PS2_DEV_CMD_DISABLE_SCANNING, PS2_DEV_CMD_ENABLE_SCANNING, PS2_DEV_CMD_IDENTIFY, PS2_DEV_CMD_RESET, PS2_DEV_RESPONSE_BAT_OK, PS2_DEV_TYPE_KEYBOARD, PS2_DEV_TYPE_UNKNOWN, ps2_device_to_string(), ps2_drain(), ps2_kbd_init(), PS2_KNOWN_DEVICE_AMOUNT, PS2_LARGE_DELAY, ps2_mouse_init(), PS2_READ, and ps2_device_info_t::type.

Referenced by ps2_init().

ps2_device_test_response_to_string()

static const char * ps2_device_test_response_to_string ( ps2_device_test_response_t  response )

static

Definition at line 30 of file ps2.c.

References PS2_DEV_TEST_CLOCK_STUCK_HIGH, PS2_DEV_TEST_CLOCK_STUCK_LOW, PS2_DEV_TEST_DATA_STUCK_HIGH, PS2_DEV_TEST_DATA_STUCK_LOW, and PS2_DEV_TEST_PASS.

Referenced by ps2_devices_test().

ps2_device_to_string()

static const char * ps2_device_to_string ( ps2_device_t  device )

static

Definition at line 62 of file ps2.c.

References PS2_DEV_FIRST, and PS2_DEV_SECOND.

Referenced by ps2_device_init(), and ps2_send_device_cmd().

ps2_device_type_to_string()

static const char * ps2_device_type_to_string ( ps2_device_type_t  type )

static

Definition at line 75 of file ps2.c.

References PS2_DEV_TYPE_KEYBOARD, PS2_DEV_TYPE_MOUSE_5BUTTON, PS2_DEV_TYPE_MOUSE_SCROLL, PS2_DEV_TYPE_MOUSE_STANDARD, and PS2_DEV_TYPE_UNKNOWN.

ps2_devices_test()

static uint64_t ps2_devices_test ( void  )

static

Definition at line 195 of file ps2.c.

References ps2_device_info_t::active, devices, ERR, isDualChannel, LOG_WARN, PS2_CMD_AND_READ, PS2_CMD_FIRST_TEST, PS2_CMD_SECOND_TEST, PS2_DEV_TEST_PASS, and ps2_device_test_response_to_string().

Referenced by ps2_init().

ps2_self_test()

static uint64_t ps2_self_test ( void  )

static

Definition at line 115 of file ps2.c.

References ERR, LOG_ERR, PS2_CMD_AND_READ, PS2_CMD_AND_WRITE, PS2_CMD_CFG_READ, PS2_CMD_CFG_WRITE, PS2_CMD_SELF_TEST, PS2_SELF_TEST_PASS, and ps2_self_test_response_to_string().

Referenced by ps2_init().

ps2_self_test_response_to_string()

static const char * ps2_self_test_response_to_string ( ps2_self_test_response_t  response )

static

Definition at line 49 of file ps2.c.

References PS2_SELF_TEST_FAIL, and PS2_SELF_TEST_PASS.

Referenced by ps2_self_test().

ps2_set_initial_config()

static uint64_t ps2_set_initial_config ( ps2_config_bits_t *  cfg )

static

Definition at line 94 of file ps2.c.

References ERR, LOG_DEBUG, LOG_ERR, PS2_CFG_FIRST_CLOCK_DISABLE, PS2_CFG_FIRST_IRQ, PS2_CFG_FIRST_TRANSLATION, PS2_CFG_SECOND_IRQ, PS2_CMD_AND_READ, PS2_CMD_AND_WRITE, PS2_CMD_CFG_READ, and PS2_CMD_CFG_WRITE.

Referenced by ps2_init().

Variable Documentation

devices

ps2_device_info_t devices[PS2_DEV_COUNT] = {0}

static

Definition at line 15 of file ps2.c.

Referenced by ps2_device_init(), ps2_devices_test(), and ps2_init().

isDualChannel

bool isDualChannel = false

static

Definition at line 14 of file ps2.c.

Referenced by ps2_check_if_dual_channel(), and ps2_devices_test().

knownDevices

const ps2_device_info_t knownDevices[]

static

Initial value:

= {
    {.type = PS2_DEV_TYPE_MOUSE_STANDARD, .name = "Standard PS/2 mouse", .firstIdByte = 0x00},
    {.type = PS2_DEV_TYPE_MOUSE_SCROLL, .name = "Mouse with scroll wheel", .firstIdByte = 0x03},
    {.type = PS2_DEV_TYPE_MOUSE_5BUTTON, .name = "5-button mouse", .firstIdByte = 0x04},
    {.type = PS2_DEV_TYPE_KEYBOARD, .name = "Standard PS/2 keyboard", .firstIdByte = 0xAB},
    {.type = PS2_DEV_TYPE_KEYBOARD, .name = "NCD Sun keyboard", .firstIdByte = 0xAC},
    {.type = PS2_DEV_TYPE_KEYBOARD, .name = "Trust keyboard", .firstIdByte = 0x5D},
    {.type = PS2_DEV_TYPE_KEYBOARD, .name = "NMB SGI keyboard", .firstIdByte = 0x47},
}

Definition at line 18 of file ps2.c.

Referenced by ps2_device_init().