static void timer_work(struct work_struct *work)
{
struct sec_keyboard_drvdata *data = container_of(work,
struct sec_keyboard_drvdata, work_timer);
int error;
if (UNKOWN_KEYLAYOUT == data->kl) {
data->acc_power(1, false);
data->pre_connected = false;
/* Set baud rate for the keyboard uart */
error = change_console_baud_rate(115200);
if (error < 0)
printk(KERN_ERR "[Keyboard] Couldn't modify the baud rate.\n");
if (data->check_uart_path)
data->check_uart_path(false);
}
}
int check_keyboard_dock(void)
{
static bool dockconnected = false;
static bool pre_connected =false;
static bool pre_uart_path =false;
static bool first_connection =true;
static unsigned long disconnected_time=0;
int try_cnt = 0;
int error = 0;
int max_cnt = 10;
if(gpio_get_value(g_data->gpio))
{
dockconnected = false;
}
else
{
/*Do not use the keyboard in this version.
* Because of the issue with the USB otg.
*/
#if defined (CONFIG_TARGET_LOCALE_EUR) || defined (CONFIG_TARGET_LOCALE_HKTW) || defined (CONFIG_TARGET_LOCALE_HKTW_FET)
if(HWREV == 0x10||HWREV == 0x11)
#elif defined (CONFIG_TARGET_LOCALE_KOR)
if(HWREV < 0xf) // It works only on Rev 13 or later.
#elif defined (CONFIG_TARGET_LOCALE_USAGSM)
if(HWREV < 0x10)
#else
if(HWREV >= 0xff)
#endif
{
return 0;
}
pre_connected = true;
/*for checking handshake*/
connected_time = jiffies_to_msecs(jiffies);
/* check the keyboard is connected durring the boot*/
if(first_connection)
{
if((connected_time - boot_time) <= 2000)
{
max_cnt = 30;
printk(KERN_DEBUG "[Keyboard] ACCESSORY is connected durring the boot.\n");
}
first_connection = false;
}
else if((connected_time - disconnected_time) < 1000)
{
g_data->kl = pre_kl;
// dockconnected = true;
printk(KERN_DEBUG "[Keyboard] kl : %d\n", pre_kl);
}
else
{
pre_kl = UNKOWN_KEYLAYOUT;
}
if(!keyboard_enable)
{
s3c_gpio_cfgpin(ACCESSORY_EN, S3C_GPIO_OUTPUT);
s3c_gpio_setpull(ACCESSORY_EN, S3C_GPIO_PULL_UP);
gpio_set_value(ACCESSORY_EN, 1);
keyboard_enable = true;
}
/* if the uart is set as cp path, the path should be switched to ap path.*/
pre_uart_path = gpio_get_value(GPIO_UART_SEL);
if(!pre_uart_path)
{
gpio_set_value(GPIO_UART_SEL, 1);
printk(KERN_DEBUG "[Keyboard] console uart path is switched to AP.\n");
}
/* Set baud rate for the keyboard uart */
error = change_console_baud_rate(9600);
if(error<0)
{
printk(KERN_ERR "[Keyboard] Couldn't modify the baud rate.\n");
}
if(!dockconnected)
{
/* try to get handshake data */
for(try_cnt=0; try_cnt<max_cnt; try_cnt++)
{
msleep(100);
if(g_data->kl != UNKOWN_KEYLAYOUT)
{
dockconnected = true;
break;
}
/* the accessory is dettached. */
if(gpio_get_value(g_data->gpio))
{
dockconnected = false;
break;
}
}
}
}
if(dockconnected)
{
// if the led is on, the led should be off.
g_data->led_on= false;
if (!work_pending(&g_data->work_led))
{
schedule_work(&g_data->work_led);
}
return 1;
}
else
{
if(pre_connected)
{
error = change_console_baud_rate(115200);
if(error<0)
{
printk(KERN_ERR "[Keyboard] Couldn't modify the baud rate.\n");
}
dockconnected = false;
gpio_set_value(GPIO_UART_SEL, pre_uart_path);
mod_timer(&g_data->timer, jiffies + HZ);
g_data->kl = UNKOWN_KEYLAYOUT;
pre_connected = false;
handshaking = false;
disconnected_time = jiffies_to_msecs(jiffies);
release_all_keys();
}
return 0;
}
}
static int check_keyboard_dock(struct sec_keyboard_callbacks *cb, bool val)
{
struct sec_keyboard_drvdata *data =
container_of(cb, struct sec_keyboard_drvdata, callbacks);
int try_cnt = 0;
int error = 0;
int max_cnt = 14;
if (!val)
data->dockconnected = false;
else {
del_timer(&data->timer);
/* wakeup by keyboard dock */
if (data->pre_connected) {
if (UNKOWN_KEYLAYOUT != data->pre_kl) {
data->kl = data->pre_kl;
data->acc_power(1, true);
pr_info("[Keyboard] kl : %d\n", data->pre_kl);
return 1;
}
} else
data->pre_kl = UNKOWN_KEYLAYOUT;
data->pre_connected = true;
/* to prevent the over current issue */
data->acc_power(0, false);
if (data->check_uart_path)
data->check_uart_path(true);
/* Set baud rate for the keyboard uart */
error = change_console_baud_rate(9600);
if (error < 0)
pr_err("[Keyboard] Couldn't modify the baud rate.\n");
msleep(200);
data->acc_power(1, true);
/* try to get handshake data */
for (try_cnt = 0; try_cnt < max_cnt; try_cnt++) {
msleep(50);
if (data->kl != UNKOWN_KEYLAYOUT) {
data->dockconnected = true;
break;
}
if (gpio_get_value(data->acc_int_gpio)) {
pr_info("[Keyboard] acc is disconnected.\n");
break;
}
}
}
if (data->dockconnected)
return 1;
else {
if (data->pre_connected) {
/* stop the thread and clear the buffer*/
data->buf_front = data->buf_rear = 0;
data->dockconnected = false;
mod_timer(&data->timer, jiffies + HZ/2);
data->kl = UNKOWN_KEYLAYOUT;
release_all_keys(data);
}
return 0;
}
}
int check_keyboard_dock(void)
{
static bool dockconnected = false;
static bool pre_connected =false;
static bool pre_uart_path =false;
static unsigned long disconnected_time=0;
int try_cnt = 0;
int error = 0;
int max_cnt = 10;
if(gpio_get_value(g_data->gpio))
{
dockconnected = false;
}
else
{
pre_connected = true;
/*for checking handshake*/
connected_time = jiffies;
if((connected_time - disconnected_time) < HZ)
{
g_data->kl = pre_kl;
// dockconnected = true;
printk(KERN_DEBUG "[Keyboard] kl : %d\n", pre_kl);
}
else
{
pre_kl = UNKOWN_KEYLAYOUT;
}
set_uart_suspend(0);
/* if the uart is set as cp path, the path should be switched to ap path.*/
pre_uart_path = gpio_get_value(OMAP_GPIO_UART_SEL);
if(!pre_uart_path)
{
gpio_set_value(OMAP_GPIO_UART_SEL, 1);
printk(KERN_DEBUG "[Keyboard] console uart path is switched to AP.\n");
}
/* Set baud rate for the keyboard uart */
error = change_console_baud_rate(9600);
if(error<0)
{
printk(KERN_ERR "[Keyboard] Couldn't modify the baud rate.\n");
goto con_err;
}
if(!keyboard_enable)
{
printk("[Keyboard] check_keyboard_dock 6");
gpio_set_value(en_gpio, 1);
keyboard_enable = true;
}
if(!dockconnected)
{
/* try to get handshake data */
for(try_cnt=0; try_cnt<max_cnt; try_cnt++)
{
msleep(100);
if(g_data->kl != UNKOWN_KEYLAYOUT)
{
dockconnected = true;
break;
}
/* the accessory is dettached. */
if(gpio_get_value(g_data->gpio))
{
dockconnected = false;
break;
}
}
}
}
if(dockconnected)
{
// if the led is on, the led should be off.
g_data->led_on= false;
if (!work_pending(&g_data->work_led))
{
schedule_work(&g_data->work_led);
}
return 1;
}
else
{
if(pre_connected)
{
gpio_set_value(en_gpio, 0);
keyboard_enable = false;
error = change_console_baud_rate(115200);
if(error<0)
{
printk(KERN_ERR "[Keyboard] Couldn't modify the baud rate.\n");
}
con_err:
dockconnected = false;
gpio_set_value(OMAP_GPIO_UART_SEL, pre_uart_path);
g_data->kl = UNKOWN_KEYLAYOUT;
pre_connected = false;
handshaking = false;
disconnected_time = jiffies;
release_all_keys();
}
set_uart_suspend(1);
return 0;
}
}
