C++ (Cpp) m5602_read_bridge Beispiele

Beispiel #1

Datei: m5602_core.c Projekt: 458941968/mini2440-kernel-2.6.29

int m5602_read_sensor(struct sd *sd, const u8 address,
		       u8 *i2c_data, const u8 len)
{
	int err, i;

	if (!len || len > sd->sensor->i2c_regW)
		return -EINVAL;

	do {
		err = m5602_read_bridge(sd, M5602_XB_I2C_STATUS, i2c_data);
	} while ((*i2c_data & I2C_BUSY) && !err);
	if (err < 0)
		goto out;

	err = m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR,
				 sd->sensor->i2c_slave_id);
	if (err < 0)
		goto out;

	err = m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address);
	if (err < 0)
		goto out;

	if (sd->sensor->i2c_regW == 1) {
		err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, len);
		if (err < 0)
			goto out;

		err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08);
		if (err < 0)
			goto out;
	} else {
		err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x18 + len);
		if (err < 0)
			goto out;
	}

	for (i = 0; (i < len) && !err; i++) {
		err = m5602_read_bridge(sd, M5602_XB_I2C_DATA, &(i2c_data[i]));

		PDEBUG(D_CONF, "Reading sensor register "
			       "0x%x containing 0x%x ", address, *i2c_data);
	}
out:
	return err;
}

Beispiel #2

Datei: m5602_core.c Projekt: 1703011/asuswrt-merlin

static int m5602_wait_for_i2c(struct sd *sd)
{
	int err;
	u8 data;

	do {
		err = m5602_read_bridge(sd, M5602_XB_I2C_STATUS, &data);
	} while ((data & I2C_BUSY) && !err);
	return err;
}

Beispiel #3

Datei: m5602_core.c Projekt: MiniBlu/cm11_kernel_htc_msm8974a3ul

static void m5602_dump_bridge(struct sd *sd)
{
    int i;
    for (i = 0; i < 0x80; i++) {
        unsigned char val = 0;
        m5602_read_bridge(sd, i, &val);
        pr_info("ALi m5602 address 0x%x contains 0x%x\n", i, val);
    }
    pr_info("Warning: The ALi m5602 webcam probably won't work until it's power cycled\n");
}

Beispiel #4

Datei: m5602_core.c Projekt: AlexShiLucky/linux

int m5602_read_sensor(struct sd *sd, const u8 address,
		       u8 *i2c_data, const u8 len)
{
	int err, i;
	struct gspca_dev *gspca_dev = (struct gspca_dev *) sd;

	if (!len || len > sd->sensor->i2c_regW)
		return -EINVAL;

	err = m5602_wait_for_i2c(sd);
	if (err < 0)
		return err;

	err = m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR,
				 sd->sensor->i2c_slave_id);
	if (err < 0)
		return err;

	err = m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address);
	if (err < 0)
		return err;

	/* Sensors with registers that are of only
	   one byte width are differently read */

	/* FIXME: This works with the ov9650, but has issues with the po1030 */
	if (sd->sensor->i2c_regW == 1) {
		err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 1);
		if (err < 0)
			return err;

		err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08);
	} else {
		err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x18 + len);
	}

	for (i = 0; (i < len) && !err; i++) {
		err = m5602_wait_for_i2c(sd);
		if (err < 0)
			return err;

		err = m5602_read_bridge(sd, M5602_XB_I2C_DATA, &(i2c_data[i]));

		gspca_dbg(gspca_dev, D_CONF, "Reading sensor register 0x%x containing 0x%x\n",
			  address, *i2c_data);
	}
	return err;
}

Beispiel #5

Datei: m5602_core.c Projekt: 1703011/asuswrt-merlin

int m5602_read_sensor(struct sd *sd, const u8 address,
		       u8 *i2c_data, const u8 len)
{
	int err, i;

	if (!len || len > sd->sensor->i2c_regW)
		return -EINVAL;

	err = m5602_wait_for_i2c(sd);
	if (err < 0)
		return err;

	err = m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR,
				 sd->sensor->i2c_slave_id);
	if (err < 0)
		return err;

	err = m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address);
	if (err < 0)
		return err;

	/* Sensors with registers that are of only
	   one byte width are differently read */

	if (sd->sensor->i2c_regW == 1) {
		err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 1);
		if (err < 0)
			return err;

		err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08);
	} else {
		err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x18 + len);
	}

	for (i = 0; (i < len) && !err; i++) {
		err = m5602_wait_for_i2c(sd);
		if (err < 0)
			return err;

		err = m5602_read_bridge(sd, M5602_XB_I2C_DATA, &(i2c_data[i]));

		PDEBUG(D_CONF, "Reading sensor register "
			       "0x%x containing 0x%x ", address, *i2c_data);
	}
	return err;
}

Beispiel #6

Datei: m5602_s5k83a.c Projekt: mikuhatsune001/linux2.6.32

static int s5k83a_set_led_indication(struct sd *sd, u8 val)
{
	int err = 0;
	u8 data[1];

	err = m5602_read_bridge(sd, M5602_XB_GPIO_DAT, data);
	if (err < 0)
		return err;

	if (val)
		data[0] = data[0] | S5K83A_GPIO_LED_MASK;
	else
		data[0] = data[0] & ~S5K83A_GPIO_LED_MASK;

	err = m5602_write_bridge(sd, M5602_XB_GPIO_DAT, data[0]);

	return err;
}

Beispiel #7

Datei: m5602_s5k83a.c Projekt: mikuhatsune001/linux2.6.32

/* Get camera rotation on Acer notebooks */
static int s5k83a_get_rotation(struct sd *sd, u8 *reg_data)
{
	int err = m5602_read_bridge(sd, M5602_XB_GPIO_DAT, reg_data);
	*reg_data = (*reg_data & S5K83A_GPIO_ROTATION_MASK) ? 0 : 1;
	return err;
}