Subversion Repositories freemyipod

//

//

//    Copyright 2010 TheSeven

//

//

//    This file is part of emBIOS.

//

//    emBIOS is free software: you can redistribute it and/or

//    modify it under the terms of the GNU General Public License as

//    published by the Free Software Foundation, either version 2 of the

//    License, or (at your option) any later version.

//

//    emBIOS is distributed in the hope that it will be useful,

//    but WITHOUT ANY WARRANTY; without even the implied warranty of

//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

//    See the GNU General Public License for more details.

//

//    You should have received a copy of the GNU General Public License along

//    with emBIOS.  If not, see <http://www.gnu.org/licenses/>.

//

//

#include "global.h"

#include "i2c.h"

#include "thread.h"

#include "s5l8720.h"

static struct mutex i2cmutex;

static struct wakeup i2cwakeup;

void i2c_init()

{

    mutex_init(&i2cmutex);

    wakeup_init(&i2cwakeup);

    interrupt_enable(IRQ_IIC, true);

}

void i2c_send(uint32_t bus, uint32_t device, uint32_t address, const uint8_t* data, uint32_t length)

{

    mutex_lock(&i2cmutex, TIMEOUT_BLOCK);

    mutex_unlock(&i2cmutex);

}

void i2c_recv(uint32_t bus, uint32_t device, uint32_t address, uint8_t* data, uint32_t length)

{

    mutex_lock(&i2cmutex, TIMEOUT_BLOCK);

    mutex_unlock(&i2cmutex);

}

void i2c_sendbyte(uint32_t bus, uint32_t device, uint32_t address, uint32_t data)

{

    uint8_t buf[1];

    buf[0] = data;

    i2c_send(bus, device, address, buf, 1);

}

uint8_t i2c_recvbyte(uint32_t bus, uint32_t device, uint32_t address)

{

    uint8_t buf[1];

    i2c_recv(bus, device, address, buf, 1);

    return buf[0];

}

void INT_IIC()

{

    wakeup_signal(&i2cwakeup);

}