static int cyttsp5_i2c_write_read_specific(struct device *dev, u8 write_len,
u8 *write_buf, u8 *read_buf)
{
struct i2c_client *client = to_i2c_client(dev);
struct i2c_msg msgs[2];
u8 msg_count = 1;
int rc;
if (!write_buf || !write_len)
return -EINVAL;
msgs[0].addr = client->addr;
msgs[0].flags = client->flags & I2C_M_TEN;
msgs[0].len = write_len;
msgs[0].buf = write_buf;
rc = i2c_transfer(client->adapter, msgs, msg_count);
if (rc < 0 || rc != msg_count)
return (rc < 0) ? rc : -EIO;
else
rc = 0;
if (read_buf)
rc = cyttsp5_i2c_read_default_nosize(dev, read_buf,
CY_I2C_DATA_SIZE);
return rc;
}
/*****************************************************************
Parameters : dev
write_len
write_buf
read_buf
Return :
Description :
*****************************************************************/
static int cyttsp5_i2c_write_read_specific(struct device *dev, u8 write_len,
u8 *write_buf, u8 *read_buf)
{
struct i2c_client *client = to_i2c_client(dev);
struct i2c_msg msgs[2];
u8 msg_count = 1;
int rc;
if (!write_buf || !write_len) {
tp_log_err("%s %d:input parameter error.\n", __func__, __LINE__);
return -EINVAL;
}
msgs[0].addr = client->addr;
msgs[0].flags = client->flags & I2C_M_TEN;
msgs[0].len = write_len;
msgs[0].buf = write_buf;
rc = i2c_transfer(client->adapter, msgs, msg_count);
if (rc < 0 || rc != msg_count) {
#ifdef CONFIG_HUAWEI_DSM
g_tp_dsm_info.constraints_I2C_status = rc;
cyttsp5_tp_report_dsm_err(dev, DSM_TP_I2C_RW_ERROR_NO, g_tp_dsm_info.constraints_I2C_status);
#endif/*CONFIG_HUAWEI_DSM*/
tp_log_err("%s %d:I2C transfer error, rc = %d\n", __func__, __LINE__, rc);
return (rc < 0) ? rc : -EIO;
}
rc = 0;
if (read_buf) {
rc = cyttsp5_i2c_read_default_nosize(dev, read_buf,
CY_I2C_DATA_SIZE);
if (rc) {
tp_log_err("%s %d:I2C read error, rc = %d\n", __func__, __LINE__, rc);
}
}
return rc;
}
