X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fi2c%2Fbusses%2Fi2c-ismt.c;h=acd32d13e06b8217acf0d7d4be9f9688865dbead;hb=52839bfb0c4b56b5c2688c96ce656df4034b2c87;hp=0043ede234c2106455a592d0f654b40f4325627c;hpb=825e587af2e90e9b953849f3347a01d8f383d577;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index 0043ede..acd32d1 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -14,10 +14,6 @@
  * 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  * The full GNU General Public License is included in this distribution
  * in the file called LICENSE.GPL.
  *
@@ -62,7 +58,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/init.h>
 #include <linux/pci.h>
 #include <linux/kernel.h>
 #include <linux/stddef.h>
@@ -183,7 +178,7 @@ struct ismt_priv {
 /**
  * ismt_ids - PCI device IDs supported by this driver
  */
-static DEFINE_PCI_DEVICE_TABLE(ismt_ids) = {
+static const struct pci_device_id ismt_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_S1200_SMT0) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_S1200_SMT1) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_AVOTON_SMT) },
@@ -344,6 +339,7 @@ static int ismt_process_desc(const struct ismt_desc *desc,
 			data->word = dma_buffer[0] | (dma_buffer[1] << 8);
 			break;
 		case I2C_SMBUS_BLOCK_DATA:
+		case I2C_SMBUS_I2C_BLOCK_DATA:
 			memcpy(&data->block[1], dma_buffer, desc->rxbytes);
 			data->block[0] = desc->rxbytes;
 			break;
@@ -497,7 +493,7 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,
 			desc->wr_len_cmd = dma_size;
 			desc->control |= ISMT_DESC_BLK;
 			priv->dma_buffer[0] = command;
-			memcpy(&priv->dma_buffer[1], &data->block[1], dma_size);
+			memcpy(&priv->dma_buffer[1], &data->block[1], dma_size - 1);
 		} else {
 			/* Block Read */
 			dev_dbg(dev, "I2C_SMBUS_BLOCK_DATA:  READ\n");
@@ -509,6 +505,41 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,
 		}
 		break;
 
+	case I2C_SMBUS_I2C_BLOCK_DATA:
+		/* Make sure the length is valid */
+		if (data->block[0] < 1)
+			data->block[0] = 1;
+
+		if (data->block[0] > I2C_SMBUS_BLOCK_MAX)
+			data->block[0] = I2C_SMBUS_BLOCK_MAX;
+
+		if (read_write == I2C_SMBUS_WRITE) {
+			/* i2c Block Write */
+			dev_dbg(dev, "I2C_SMBUS_I2C_BLOCK_DATA:  WRITE\n");
+			dma_size = data->block[0] + 1;
+			dma_direction = DMA_TO_DEVICE;
+			desc->wr_len_cmd = dma_size;
+			desc->control |= ISMT_DESC_I2C;
+			priv->dma_buffer[0] = command;
+			memcpy(&priv->dma_buffer[1], &data->block[1], dma_size - 1);
+		} else {
+			/* i2c Block Read */
+			dev_dbg(dev, "I2C_SMBUS_I2C_BLOCK_DATA:  READ\n");
+			dma_size = data->block[0];
+			dma_direction = DMA_FROM_DEVICE;
+			desc->rd_len = dma_size;
+			desc->wr_len_cmd = command;
+			desc->control |= (ISMT_DESC_I2C | ISMT_DESC_CWRL);
+			/*
+			 * Per the "Table 15-15. I2C Commands",
+			 * in the External Design Specification (EDS),
+			 * (Document Number: 508084, Revision: 2.0),
+			 * the _rw bit must be 0
+			 */
+			desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, 0);
+		}
+		break;
+
 	default:
 		dev_err(dev, "Unsupported transaction %d\n",
 			size);
@@ -582,6 +613,7 @@ static u32 ismt_func(struct i2c_adapter *adap)
 	       I2C_FUNC_SMBUS_WORD_DATA		|
 	       I2C_FUNC_SMBUS_PROC_CALL		|
 	       I2C_FUNC_SMBUS_BLOCK_DATA	|
+	       I2C_FUNC_SMBUS_I2C_BLOCK		|
 	       I2C_FUNC_SMBUS_PEC;
 }