[PATCH] i2c updates 2/4

Please apply the two of four tested patches that update
2.5.31 with these I2C changes:
 o Support for SMBus 2.0 PEC Packet Error Checking
 o New adapter-i2c-frodo for SA 1110 board
 o New adapter-i2c-rpx for embeded MPC8XX
 o Replace depreciated cli()&sti() with spin_{un}lock_irq()
 o Updated documentation

3 files changed, 80 insertions, 11 deletions

diff --git a/include/linux/i2c-dev.h b/include/linux/i2c-dev.h
index 4c67640b9c91..ee6ddba913bb 100644
--- a/include/linux/i2c-dev.h
+++ b/include/linux/i2c-dev.h
@@ -19,7 +19,7 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
-/* $Id: i2c-dev.h,v 1.10 2001/11/19 19:01:46 mds Exp $ */
+/* $Id: i2c-dev.h,v 1.11 2002/07/07 15:42:47 mds Exp $ */
 
 #ifndef I2C_DEV_H
 #define I2C_DEV_H
@@ -144,7 +144,7 @@ static inline __s32 i2c_smbus_read_block_data(int file, __u8 command,
 	else {
 		for (i = 1; i <= data.block[0]; i++)
 			values[i-1] = data.block[i];
-			return data.block[0];
+		return data.block[0];
 	}
 }
 
@@ -192,6 +192,27 @@ static inline __s32 i2c_smbus_write_i2c_block_data(int file, __u8 command,
 	                        I2C_SMBUS_I2C_BLOCK_DATA, &data);
 }
 
+/* Returns the number of read bytes */
+static inline __s32 i2c_smbus_block_process_call(int file, __u8 command,
+                                                 __u8 length, __u8 *values)
+{
+	union i2c_smbus_data data;
+	int i;
+	if (length > 32)
+		length = 32;
+	for (i = 1; i <= length; i++)
+		data.block[i] = values[i-1];
+	data.block[0] = length;
+	if (i2c_smbus_access(file,I2C_SMBUS_WRITE,command,
+	                     I2C_SMBUS_BLOCK_PROC_CALL,&data))
+		return -1;
+	else {
+		for (i = 1; i <= data.block[0]; i++)
+			values[i-1] = data.block[i];
+		return data.block[0];
+	}
+}
+
 #endif /* ndef __KERNEL__ */
 
 #endif
diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
index 039fb3640431..a914758c8f33 100644
--- a/include/linux/i2c-id.h
+++ b/include/linux/i2c-id.h
@@ -20,7 +20,7 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.		     */
 /* ------------------------------------------------------------------------- */
 
-/* $Id: i2c-id.h,v 1.41 2002/03/11 07:18:55 simon Exp $ */
+/* $Id: i2c-id.h,v 1.52 2002/07/10 13:28:44 abz Exp $ */
 
 #ifndef I2C_ID_H
 #define I2C_ID_H
@@ -90,8 +90,12 @@
 #define I2C_DRIVERID_DRP3510	43     /* ADR decoder (Astra Radio)	*/
 #define I2C_DRIVERID_SP5055	44     /* Satellite tuner		*/
 #define I2C_DRIVERID_STV0030	45     /* Multipurpose switch		*/
-#define I2C_DRIVERID_SAA7108    46     /* video decoder, image scaler   */
-
+#define I2C_DRIVERID_SAA7108	46     /* video decoder, image scaler   */
+#define I2C_DRIVERID_DS1307	47     /* DS1307 real time clock	*/
+#define I2C_DRIVERID_ADV717x	48     /* ADV 7175/7176 video encoder	*/
+#define I2C_DRIVERID_ZR36067	49     /* Zoran 36067 video encoder	*/
+#define I2C_DRIVERID_ZR36120	50     /* Zoran 36120 video encoder	*/
+#define I2C_DRIVERID_24LC32A	51		/* Microchip 24LC32A 32k EEPROM	*/
 
 
 
@@ -102,6 +106,8 @@
 
 #define I2C_DRIVERID_I2CDEV	900
 #define I2C_DRIVERID_I2CPROC	901
+#define I2C_DRIVERID_ARP        902    /* SMBus ARP Client              */
+#define I2C_DRIVERID_ALERT      903    /* SMBus Alert Responder Client  */
 
 /* IDs --   Use DRIVERIDs 1000-1999 for sensors. 
    These were originally in sensors.h in the lm_sensors package */
@@ -134,6 +140,9 @@
 #define I2C_DRIVERID_FSCPOS 1028
 #define I2C_DRIVERID_FSCSCY 1029
 #define I2C_DRIVERID_PCF8591 1030
+#define I2C_DRIVERID_SMSC47M1 1031
+#define I2C_DRIVERID_VT1211 1032
+#define I2C_DRIVERID_LM92 1033
 
 /*
  * ---- Adapter types ----------------------------------------------------
@@ -155,6 +164,7 @@
 #define I2C_ALGO_EC     0x100000        /* ACPI embedded controller     */
 
 #define I2C_ALGO_MPC8XX 0x110000	/* MPC8xx PowerPC I2C algorithm */
+#define I2C_ALGO_OCP    0x120000	/* IBM or otherwise On-chip I2C algorithm */
 
 #define I2C_ALGO_EXP	0x800000	/* experimental			*/
 
@@ -182,9 +192,11 @@
 #define I2C_HW_B_I810	0x0a	/* Intel I810 				*/
 #define I2C_HW_B_VOO	0x0b	/* 3dfx Voodoo 3 / Banshee      	*/
 #define I2C_HW_B_PPORT  0x0c	/* Primitive parallel port adapter	*/
+#define I2C_HW_B_SAVG	0x0d	/* Savage 4                     	*/
 #define I2C_HW_B_RIVA	0x10	/* Riva based graphics cards		*/
 #define I2C_HW_B_IOC	0x11	/* IOC bit-wiggling			*/
 #define I2C_HW_B_TSUNA  0x12	/* DEC Tsunami chipset			*/
+#define I2C_HW_B_FRODO  0x13    /* 2d3D, Inc. SA-1110 Development Board */
 
 /* --- PCF 8584 based algorithms					*/
 #define I2C_HW_P_LP	0x00	/* Parallel port interface		*/
@@ -200,6 +212,10 @@
 /* --- ITE based algorithms						*/
 #define I2C_HW_I_IIC	0x00	/* controller on the ITE */
 
+/* --- PowerPC on-chip adapters						*/
+#define I2C_HW_OCP 0x00	/* IBM on-chip I2C adapter 	*/
+
+
 /* --- SMBus only adapters						*/
 #define I2C_HW_SMBUS_PIIX4	0x00
 #define I2C_HW_SMBUS_ALI15X3	0x01
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 7bb812551f6c..920e64b79c80 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -23,13 +23,13 @@
 /* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and
    Frodo Looijaard <frodol@dds.nl> */
 
-/* $Id: i2c.h,v 1.50 2002/03/23 00:53:38 phil Exp $ */
+/* $Id: i2c.h,v 1.59 2002/07/19 20:53:45 phil Exp $ */
 
 #ifndef I2C_H
 #define I2C_H
 
-#define I2C_DATE "20020322"
-#define I2C_VERSION "2.6.3"
+#define I2C_DATE "20020719"
+#define I2C_VERSION "2.6.4"
 
 #include <linux/i2c-id.h>	/* id values of adapters et. al. 	*/
 #include <linux/types.h>
@@ -280,6 +280,9 @@ struct i2c_adapter {
 #define I2C_CLIENT_ALLOW_USE		0x01	/* Client allows access */
 #define I2C_CLIENT_ALLOW_MULTIPLE_USE 	0x02  	/* Allow multiple access-locks */
 						/* on an i2c_client */
+#define I2C_CLIENT_PEC  0x04			/* Use Packet Error Checking */
+#define I2C_CLIENT_TEN	0x10			/* we have a ten bit chip address	*/
+						/* Must equal I2C_M_TEN below */
 
 /* i2c_client_address_data is the struct for holding default client
  * addresses for a driver and for the parameters supplied on the
@@ -395,6 +398,12 @@ struct i2c_msg {
 #define I2C_FUNC_I2C			0x00000001
 #define I2C_FUNC_10BIT_ADDR		0x00000002
 #define I2C_FUNC_PROTOCOL_MANGLING	0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART} */
+#define I2C_FUNC_SMBUS_HWPEC_CALC	0x00000008 /* SMBus 2.0 */
+#define I2C_FUNC_SMBUS_READ_WORD_DATA_PEC  0x00000800 /* SMBus 2.0 */ 
+#define I2C_FUNC_SMBUS_WRITE_WORD_DATA_PEC 0x00001000 /* SMBus 2.0 */ 
+#define I2C_FUNC_SMBUS_PROC_CALL_PEC	0x00002000 /* SMBus 2.0 */
+#define I2C_FUNC_SMBUS_BLOCK_PROC_CALL_PEC 0x00004000 /* SMBus 2.0 */
+#define I2C_FUNC_SMBUS_BLOCK_PROC_CALL	0x00008000 /* SMBus 2.0 */
 #define I2C_FUNC_SMBUS_QUICK		0x00010000 
 #define I2C_FUNC_SMBUS_READ_BYTE	0x00020000 
 #define I2C_FUNC_SMBUS_WRITE_BYTE	0x00040000 
@@ -409,6 +418,8 @@ struct i2c_msg {
 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK	0x08000000 /* w/ 1-byte reg. addr. */
 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2	 0x10000000 /* I2C-like block xfer  */
 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 0x20000000 /* w/ 2-byte reg. addr. */
+#define I2C_FUNC_SMBUS_READ_BLOCK_DATA_PEC  0x40000000 /* SMBus 2.0 */
+#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC 0x80000000 /* SMBus 2.0 */
 
 #define I2C_FUNC_SMBUS_BYTE I2C_FUNC_SMBUS_READ_BYTE | \
                             I2C_FUNC_SMBUS_WRITE_BYTE
@@ -422,6 +433,17 @@ struct i2c_msg {
                                   I2C_FUNC_SMBUS_WRITE_I2C_BLOCK
 #define I2C_FUNC_SMBUS_I2C_BLOCK_2 I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 | \
                                    I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2
+#define I2C_FUNC_SMBUS_BLOCK_DATA_PEC I2C_FUNC_SMBUS_READ_BLOCK_DATA_PEC | \
+                                      I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC
+#define I2C_FUNC_SMBUS_WORD_DATA_PEC  I2C_FUNC_SMBUS_READ_WORD_DATA_PEC | \
+                                      I2C_FUNC_SMBUS_WRITE_WORD_DATA_PEC
+
+#define I2C_FUNC_SMBUS_READ_BYTE_PEC		I2C_FUNC_SMBUS_READ_BYTE_DATA
+#define I2C_FUNC_SMBUS_WRITE_BYTE_PEC		I2C_FUNC_SMBUS_WRITE_BYTE_DATA
+#define I2C_FUNC_SMBUS_READ_BYTE_DATA_PEC	I2C_FUNC_SMBUS_READ_WORD_DATA
+#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA_PEC	I2C_FUNC_SMBUS_WRITE_WORD_DATA
+#define I2C_FUNC_SMBUS_BYTE_PEC			I2C_FUNC_SMBUS_BYTE_DATA
+#define I2C_FUNC_SMBUS_BYTE_DATA_PEC		I2C_FUNC_SMBUS_WORD_DATA
 
 #define I2C_FUNC_SMBUS_EMUL I2C_FUNC_SMBUS_QUICK | \
                             I2C_FUNC_SMBUS_BYTE | \
@@ -429,16 +451,20 @@ struct i2c_msg {
                             I2C_FUNC_SMBUS_WORD_DATA | \
                             I2C_FUNC_SMBUS_PROC_CALL | \
                             I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \
-                            I2C_FUNC_SMBUS_I2C_BLOCK | \
-                            I2C_FUNC_SMBUS_I2C_BLOCK_2
+                            I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC | \
+                            I2C_FUNC_SMBUS_I2C_BLOCK
 
 /* 
  * Data for SMBus Messages 
  */
+#define I2C_SMBUS_BLOCK_MAX	32	/* As specified in SMBus standard */	
+#define I2C_SMBUS_I2C_BLOCK_MAX	32	/* Not specified but we use same structure */
 union i2c_smbus_data {
 	__u8 byte;
 	__u16 word;
-	__u8 block[33]; /* block[0] is used for length */
+	__u8 block[I2C_SMBUS_BLOCK_MAX + 3]; /* block[0] is used for length */
+                          /* one more for read length in block process call */
+	                                            /* and one more for PEC */
 };
 
 /* smbus_access read or write markers */
@@ -454,6 +480,11 @@ union i2c_smbus_data {
 #define I2C_SMBUS_PROC_CALL	    4
 #define I2C_SMBUS_BLOCK_DATA	    5
 #define I2C_SMBUS_I2C_BLOCK_DATA    6
+#define I2C_SMBUS_BLOCK_PROC_CALL   7		/* SMBus 2.0 */
+#define I2C_SMBUS_BLOCK_DATA_PEC    8		/* SMBus 2.0 */
+#define I2C_SMBUS_PROC_CALL_PEC     9		/* SMBus 2.0 */
+#define I2C_SMBUS_BLOCK_PROC_CALL_PEC  10	/* SMBus 2.0 */
+#define I2C_SMBUS_WORD_DATA_PEC	   11		/* SMBus 2.0 */
 
 
 /* ----- commands for the ioctl like i2c_command call:
@@ -479,6 +510,7 @@ union i2c_smbus_data {
 
 #define I2C_FUNCS	0x0705	/* Get the adapter functionality */
 #define I2C_RDWR	0x0707	/* Combined R/W transfer (one stop only)*/
+#define I2C_PEC		0x0708	/* != 0 for SMBus PEC                   */
 #if 0
 #define I2C_ACK_TEST	0x0710	/* See if a slave is at a specific address */
 #endif