1 files changed, 161 insertions, 45 deletions

diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index be837b13f297..be35332b67e6 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -34,6 +34,13 @@
 #include <linux/device.h>       /* for struct device */
 #include <asm/semaphore.h>
 
+/* --- For i2c-isa ---------------------------------------------------- */
+
+extern void i2c_adapter_dev_release(struct device *dev);
+extern struct device_driver i2c_adapter_driver;
+extern struct class i2c_adapter_class;
+extern struct bus_type i2c_bus_type;
+
 /* --- General options ------------------------------------------------ */
 
 struct i2c_msg;
@@ -41,7 +48,6 @@ struct i2c_algorithm;
 struct i2c_adapter;
 struct i2c_client;
 struct i2c_driver;
-struct i2c_client_address_data;
 union i2c_smbus_data;
 
 /*
@@ -143,12 +149,9 @@ struct i2c_driver {
  */
 struct i2c_client {
         unsigned int flags;             /* div., see below              */
-        unsigned int addr;              /* chip address - NOTE: 7bit    */
+        unsigned short addr;            /* chip address - NOTE: 7bit    */
                                         /* addresses are stored in the  */
-                                        /* _LOWER_ 7 bits of this char  */
-        /* addr: unsigned int to make lm_sensors i2c-isa adapter work
-          more cleanly. It does not take any more memory space, due to
-          alignment considerations */
+                                        /* _LOWER_ 7 bits               */
         struct i2c_adapter *adapter;    /* the adapter we sit on        */
         struct i2c_driver *driver;      /* and our access routines      */
         int usage_count;                /* How many accesses currently  */
@@ -160,6 +163,11 @@ struct i2c_client {
 };
 #define to_i2c_client(d) container_of(d, struct i2c_client, dev)
 
+static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj)
+{
+        return to_i2c_client(container_of(kobj, struct device, kobj));
+}
+
 static inline void *i2c_get_clientdata (struct i2c_client *dev)
 {
         return dev_get_drvdata (&dev->dev);
@@ -170,13 +178,6 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
         dev_set_drvdata (&dev->dev, data);
 }
 
-#define I2C_DEVNAME(str)        .name = str
-
-static inline char *i2c_clientname(struct i2c_client *c)
-{
-        return &c->name[0];
-}
-
 /*
  * The following structs are for those who like to implement new bus drivers:
  * i2c_algorithm is the interface to a class of hardware solutions which can
@@ -184,9 +185,6 @@ static inline char *i2c_clientname(struct i2c_client *c)
  * to name two of the most common.
  */
 struct i2c_algorithm {
-        char name[32];                          /* textual description  */
-        unsigned int id;
-
         /* If an adapter algorithm can't do I2C-level access, set master_xfer
            to NULL. If an adapter algorithm can do SMBus access, set 
            smbus_xfer. If set to NULL, the SMBus protocol is simulated
@@ -214,8 +212,7 @@ struct i2c_algorithm {
  */
 struct i2c_adapter {
         struct module *owner;
-        unsigned int id;/* == is algo->id | hwdep.struct->id,           */
-                        /* for registered values see below              */
+        unsigned int id;
         unsigned int class;
         struct i2c_algorithm *algo;/* the algorithm to access the bus   */
         void *algo_data;
@@ -292,12 +289,11 @@ struct i2c_client_address_data {
         unsigned short *normal_i2c;
         unsigned short *probe;
         unsigned short *ignore;
-        unsigned short *force;
+        unsigned short **forces;
 };
 
 /* Internal numbers to terminate lists */
 #define I2C_CLIENT_END          0xfffeU
-#define I2C_CLIENT_ISA_END      0xfffefffeU
 
 /* The numbers to use to set I2C bus address */
 #define ANY_I2C_BUS             0xffff
@@ -356,10 +352,6 @@ extern int i2c_probe(struct i2c_adapter *adapter,
  */
 extern int i2c_control(struct i2c_client *,unsigned int, unsigned long);
 
-/* This call returns a unique low identifier for each registered adapter,
- * or -1 if the adapter was not registered. 
- */
-extern int i2c_adapter_id(struct i2c_adapter *adap);
 extern struct i2c_adapter* i2c_get_adapter(int id);
 extern void i2c_put_adapter(struct i2c_adapter *adap);
 
@@ -376,6 +368,12 @@ static inline int i2c_check_functionality(struct i2c_adapter *adap, u32 func)
         return (func & i2c_get_functionality(adap)) == func;
 }
 
+/* Return id number for a specific adapter */
+static inline int i2c_adapter_id(struct i2c_adapter *adap)
+{
+        return adap->nr;
+}
+
 /*
  * I2C Message - used for pure i2c transaction, also from /dev interface
  */
@@ -510,9 +508,6 @@ 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
 
 #define I2C_SMBUS       0x0720  /* SMBus-level access */
 
@@ -556,27 +551,148 @@ union i2c_smbus_data {
   module_param_array(var, short, &var##_num, 0); \
   MODULE_PARM_DESC(var,desc)
 
-/* This is the one you want to use in your own modules */
+#define I2C_CLIENT_MODULE_PARM_FORCE(name)                              \
+I2C_CLIENT_MODULE_PARM(force_##name,                                    \
+                       "List of adapter,address pairs which are "       \
+                       "unquestionably assumed to contain a `"          \
+                       # name "' chip")
+
+
+#define I2C_CLIENT_INSMOD_COMMON                                        \
+I2C_CLIENT_MODULE_PARM(probe, "List of adapter,address pairs to scan "  \
+                       "additionally");                                 \
+I2C_CLIENT_MODULE_PARM(ignore, "List of adapter,address pairs not to "  \
+                       "scan");                                         \
+static struct i2c_client_address_data addr_data = {                     \
+        .normal_i2c     = normal_i2c,                                   \
+        .probe          = probe,                                        \
+        .ignore         = ignore,                                       \
+        .forces         = forces,                                       \
+}
+
+/* These are the ones you want to use in your own drivers. Pick the one
+   which matches the number of devices the driver differenciates between. */
 #define I2C_CLIENT_INSMOD \
-  I2C_CLIENT_MODULE_PARM(probe, \
-                      "List of adapter,address pairs to scan additionally"); \
-  I2C_CLIENT_MODULE_PARM(ignore, \
-                      "List of adapter,address pairs not to scan"); \
   I2C_CLIENT_MODULE_PARM(force, \
                       "List of adapter,address pairs to boldly assume " \
                       "to be present"); \
-        static struct i2c_client_address_data addr_data = {             \
-                        .normal_i2c =           normal_i2c,             \
-                        .probe =                probe,                  \
-                        .ignore =               ignore,                 \
-                        .force =                force,                  \
-                }
-
-/* Detect whether we are on the isa bus. If this returns true, all i2c
-   access will fail! */
-#define i2c_is_isa_client(clientptr) \
-        ((clientptr)->adapter->algo->id == I2C_ALGO_ISA)
-#define i2c_is_isa_adapter(adapptr) \
-        ((adapptr)->algo->id == I2C_ALGO_ISA)
+        static unsigned short *forces[] = {                             \
+                        force,                                          \
+                        NULL                                            \
+                };                                                      \
+I2C_CLIENT_INSMOD_COMMON
+
+#define I2C_CLIENT_INSMOD_1(chip1)                                      \
+enum chips { any_chip, chip1 };                                         \
+I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "       \
+                       "boldly assume to be present");                  \
+I2C_CLIENT_MODULE_PARM_FORCE(chip1);                                    \
+static unsigned short *forces[] = { force, force_##chip1, NULL };       \
+I2C_CLIENT_INSMOD_COMMON
+
+#define I2C_CLIENT_INSMOD_2(chip1, chip2)                               \
+enum chips { any_chip, chip1, chip2 };                                  \
+I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "       \
+                       "boldly assume to be present");                  \
+I2C_CLIENT_MODULE_PARM_FORCE(chip1);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip2);                                    \
+static unsigned short *forces[] = { force, force_##chip1,               \
+                                    force_##chip2, NULL };              \
+I2C_CLIENT_INSMOD_COMMON
+
+#define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3)                        \
+enum chips { any_chip, chip1, chip2, chip3 };                           \
+I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "       \
+                       "boldly assume to be present");                  \
+I2C_CLIENT_MODULE_PARM_FORCE(chip1);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip2);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip3);                                    \
+static unsigned short *forces[] = { force, force_##chip1,               \
+                                    force_##chip2, force_##chip3,       \
+                                    NULL };                             \
+I2C_CLIENT_INSMOD_COMMON
+
+#define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4)                 \
+enum chips { any_chip, chip1, chip2, chip3, chip4 };                    \
+I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "       \
+                       "boldly assume to be present");                  \
+I2C_CLIENT_MODULE_PARM_FORCE(chip1);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip2);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip3);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip4);                                    \
+static unsigned short *forces[] = { force, force_##chip1,               \
+                                    force_##chip2, force_##chip3,       \
+                                    force_##chip4, NULL};               \
+I2C_CLIENT_INSMOD_COMMON
+
+#define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5)          \
+enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 };             \
+I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "       \
+                       "boldly assume to be present");                  \
+I2C_CLIENT_MODULE_PARM_FORCE(chip1);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip2);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip3);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip4);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip5);                                    \
+static unsigned short *forces[] = { force, force_##chip1,               \
+                                    force_##chip2, force_##chip3,       \
+                                    force_##chip4, force_##chip5,       \
+                                    NULL };                             \
+I2C_CLIENT_INSMOD_COMMON
+
+#define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6)   \
+enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 };      \
+I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "       \
+                       "boldly assume to be present");                  \
+I2C_CLIENT_MODULE_PARM_FORCE(chip1);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip2);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip3);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip4);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip5);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip6);                                    \
+static unsigned short *forces[] = { force, force_##chip1,               \
+                                    force_##chip2, force_##chip3,       \
+                                    force_##chip4, force_##chip5,       \
+                                    force_##chip6, NULL };              \
+I2C_CLIENT_INSMOD_COMMON
+
+#define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7) \
+enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6,        \
+             chip7 };                                                   \
+I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "       \
+                       "boldly assume to be present");                  \
+I2C_CLIENT_MODULE_PARM_FORCE(chip1);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip2);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip3);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip4);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip5);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip6);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip7);                                    \
+static unsigned short *forces[] = { force, force_##chip1,               \
+                                    force_##chip2, force_##chip3,       \
+                                    force_##chip4, force_##chip5,       \
+                                    force_##chip6, force_##chip7,       \
+                                    NULL };                             \
+I2C_CLIENT_INSMOD_COMMON
+
+#define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8) \
+enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6,        \
+             chip7, chip8 };                                            \
+I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "       \
+                       "boldly assume to be present");                  \
+I2C_CLIENT_MODULE_PARM_FORCE(chip1);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip2);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip3);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip4);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip5);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip6);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip7);                                    \
+I2C_CLIENT_MODULE_PARM_FORCE(chip8);                                    \
+static unsigned short *forces[] = { force, force_##chip1,               \
+                                    force_##chip2, force_##chip3,       \
+                                    force_##chip4, force_##chip5,       \
+                                    force_##chip6, force_##chip7,       \
+                                    force_##chip8, NULL };              \
+I2C_CLIENT_INSMOD_COMMON
 
 #endif /* _LINUX_I2C_H */