Exemplos de pmic8xxx_kp_read_data em C++ (Cpp)

Exemplo n.º 1

Arquivo: pmic8xxx-keypad.c Projeto: F4k/android_kernel_samsung_msm8930-common

static int pmic8xxx_kp_read_matrix(struct pmic8xxx_kp *kp, u16 *new_state,
					 u16 *old_state)
{
	int rc, read_rows;
	u8 scan_val;

	if (kp->pdata->num_rows < PM8XXX_MIN_ROWS)
		read_rows = PM8XXX_MIN_ROWS;
	else
		read_rows = kp->pdata->num_rows;

	pmic8xxx_chk_sync_read(kp);

	if (old_state) {
		rc = pmic8xxx_kp_read_data(kp, old_state, KEYP_OLD_DATA,
						read_rows);
		if (rc < 0) {
			dev_err(kp->dev,
				"Error reading KEYP_OLD_DATA, rc=%d\n", rc);
			return rc;
		}
	}

	rc = pmic8xxx_kp_read_data(kp, new_state, KEYP_RECENT_DATA,
					 read_rows);
	if (rc < 0) {
		dev_err(kp->dev,
			"Error reading KEYP_RECENT_DATA, rc=%d\n", rc);
		return rc;
	}

	/* 4 * 32KHz clocks */
	udelay((4 * DIV_ROUND_UP(USEC_PER_SEC, KEYP_CLOCK_FREQ)) + 1);

	rc = pmic8xxx_kp_read_u8(kp, &scan_val, KEYP_SCAN);
	if (rc < 0) {
		dev_err(kp->dev, "Error reading KEYP_SCAN reg, rc=%d\n", rc);
		return rc;
	}

	scan_val &= 0xFE;
	rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
	if (rc < 0)
		dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);

	return rc;
}

Exemplo n.º 2

Arquivo: pmic8xxx-keypad.c Projeto: ZolaIII/android_kernel_synopsis_deprecated

static int pmic8xxx_kp_read_matrix(struct pmic8xxx_kp *kp, u16 *new_state,
					 u16 *old_state)
{
	int rc, read_rows;
	u8 scan_val;
#ifdef CONFIG_HUAWEI_KERNEL
	int i=0;
#endif

	if (kp->pdata->num_rows < PM8XXX_MIN_ROWS)
		read_rows = PM8XXX_MIN_ROWS;
	else
		read_rows = kp->pdata->num_rows;

	pmic8xxx_chk_sync_read(kp);

	if (old_state) {
		rc = pmic8xxx_kp_read_data(kp, old_state, KEYP_OLD_DATA,
						read_rows);
		if (rc < 0) {
			dev_err(kp->dev,
				"Error reading KEYP_OLD_DATA, rc=%d\n", rc);
			return rc;
		}
/*it is reslove the problem of ghost , becuse the six column  just one key */ 
#ifdef CONFIG_HUAWEI_KERNEL
		if(machine_is_msm8255_u8730())
		{
			if(~old_state[0] &(1<<(kp->pdata->num_cols-1)))
			{
				for(i=1;i< kp->pdata->num_rows;i++)
				{
					old_state[i]  |= 1<<(kp->pdata->num_cols-1);
				}
			}
		}
#endif
	}

	rc = pmic8xxx_kp_read_data(kp, new_state, KEYP_RECENT_DATA,
					 read_rows);
	if (rc < 0) {
		dev_err(kp->dev,
			"Error reading KEYP_RECENT_DATA, rc=%d\n", rc);
		return rc;
	}
/*it is reslove the problem of ghost , becuse the six column  just one key */ 
#ifdef CONFIG_HUAWEI_KERNEL
		if(machine_is_msm8255_u8730())
		{
			if(~new_state[0] &(1<<(kp->pdata->num_cols-1)))
			{
				for(i=1;i< kp->pdata->num_rows-1;i++)
				{
					new_state[i] |= 1<<(kp->pdata->num_cols-1);
				}
			}
		}

#endif
	/* 4 * 32KHz clocks */
	udelay((4 * DIV_ROUND_UP(USEC_PER_SEC, KEYP_CLOCK_FREQ)) + 1);

	rc = pmic8xxx_kp_read_u8(kp, &scan_val, KEYP_SCAN);
	if (rc < 0) {
		dev_err(kp->dev, "Error reading KEYP_SCAN reg, rc=%d\n", rc);
		return rc;
	}

	scan_val &= 0xFE;
	rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
	if (rc < 0)
		dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);

	return rc;
}