--- linux/drivers/i2c/i2c-core.c.orig 2002-07-23 01:43:58.000000000 -0400 +++ linux/drivers/i2c/i2c-core.c 2002-08-27 01:45:22.000000000 -0400 @@ -18,9 +18,10 @@ /* ------------------------------------------------------------------------- */ /* With some changes from Kyösti Mälkki . - All SMBus-related things are written by Frodo Looijaard */ + All SMBus-related things are written by Frodo Looijaard + SMBus 2.0 support by Mark Studebaker */ -/* $Id: i2c-core.c,v 1.64 2001/08/13 01:35:56 mds Exp $ */ +/* $Id: i2c-core.c,v 1.83 2002/07/08 01:37:15 mds Exp $ */ #include #include @@ -28,7 +29,6 @@ #include #include #include - #include /* ----- compatibility stuff ----------------------------------------------- */ @@ -36,10 +36,6 @@ #include #include -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,1) -#define init_MUTEX(s) do { *(s) = MUTEX; } while(0) -#endif - #include /* ----- global defines ---------------------------------------------------- */ @@ -84,10 +80,6 @@ static int i2cproc_init(void); static int i2cproc_cleanup(void); -#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,3,27)) -static void monitor_bus_i2c(struct inode *inode, int fill); -#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,58)) */ - static ssize_t i2cproc_bus_read(struct file * file, char * buf,size_t count, loff_t *ppos); static int read_bus_i2c(char *buf, char **start, off_t offset, int len, @@ -99,12 +91,6 @@ read: i2cproc_bus_read, }; -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,48)) -static struct inode_operations i2cproc_inode_operations = { - &i2cproc_operations -}; -#endif - static int i2cproc_initialized = 0; #else /* undef CONFIG_PROC_FS */ @@ -158,22 +144,14 @@ proc_entry = create_proc_entry(name,0,proc_bus); if (! proc_entry) { - printk("i2c-core.o: Could not create /proc/bus/%s\n", + printk(KERN_ERR "i2c-core.o: Could not create /proc/bus/%s\n", name); res = -ENOENT; goto ERROR1; } -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,48)) proc_entry->proc_fops = &i2cproc_operations; -#else - proc_entry->ops = &i2cproc_inode_operations; -#endif -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,27)) proc_entry->owner = THIS_MODULE; -#else - proc_entry->fill_inode = &monitor_bus_i2c; -#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,58)) */ adap->inode = proc_entry->low_ino; } @@ -188,7 +166,7 @@ drivers[j]->attach_adapter(adap); DRV_UNLOCK(); - DEB(printk("i2c-core.o: adapter %s registered as adapter %d.\n", + DEB(printk(KERN_DEBUG "i2c-core.o: adapter %s registered as adapter %d.\n", adap->name,i)); return 0; @@ -214,7 +192,7 @@ if (adap == adapters[i]) break; if (I2C_ADAP_MAX == i) { - printk( "i2c-core.o: unregister_adapter adap [%s] not found.\n", + printk( KERN_WARNING "i2c-core.o: unregister_adapter adap [%s] not found.\n", adap->name); res = -ENODEV; goto ERROR0; @@ -229,7 +207,7 @@ for (j = 0; j < I2C_DRIVER_MAX; j++) if (drivers[j] && (drivers[j]->flags & I2C_DF_DUMMY)) if ((res = drivers[j]->attach_adapter(adap))) { - printk("i2c-core.o: can't detach adapter %s " + printk(KERN_WARNING "i2c-core.o: can't detach adapter %s " "while detaching driver %s: driver not " "detached!",adap->name,drivers[j]->name); goto ERROR1; @@ -247,7 +225,7 @@ * must be deleted, as this would cause invalid states. */ if ((res=client->driver->detach_client(client))) { - printk("i2c-core.o: adapter %s not " + printk(KERN_ERR "i2c-core.o: adapter %s not " "unregistered, because client at " "address %02x can't be detached. ", adap->name, client->addr); @@ -266,7 +244,7 @@ adap_count--; ADAP_UNLOCK(); - DEB(printk("i2c-core.o: adapter unregistered: %s\n",adap->name)); + DEB(printk(KERN_DEBUG "i2c-core.o: adapter unregistered: %s\n",adap->name)); return 0; ERROR0: @@ -305,7 +283,7 @@ DRV_UNLOCK(); /* driver was successfully added */ - DEB(printk("i2c-core.o: driver %s registered.\n",driver->name)); + DEB(printk(KERN_DEBUG "i2c-core.o: driver %s registered.\n",driver->name)); ADAP_LOCK(); @@ -340,7 +318,7 @@ * attached. If so, detach them to be able to kill the driver * afterwards. */ - DEB2(printk("i2c-core.o: unregister_driver - looking for clients.\n")); + DEB2(printk(KERN_DEBUG "i2c-core.o: unregister_driver - looking for clients.\n")); /* removing clients does not depend on the notify flag, else * invalid operation might (will!) result, when using stale client * pointers. @@ -350,7 +328,7 @@ struct i2c_adapter *adap = adapters[k]; if (adap == NULL) /* skip empty entries. */ continue; - DEB2(printk("i2c-core.o: examining adapter %s:\n", + DEB2(printk(KERN_DEBUG "i2c-core.o: examining adapter %s:\n", adap->name)); if (driver->flags & I2C_DF_DUMMY) { /* DUMMY drivers do not register their clients, so we have to @@ -359,7 +337,7 @@ * this or hell will break loose... */ if ((res = driver->attach_adapter(adap))) { - printk("i2c-core.o: while unregistering " + printk(KERN_WARNING "i2c-core.o: while unregistering " "dummy driver %s, adapter %s could " "not be detached properly; driver " "not unloaded!",driver->name, @@ -372,19 +350,17 @@ struct i2c_client *client = adap->clients[j]; if (client != NULL && client->driver == driver) { - DEB2(printk("i2c-core.o: " + DEB2(printk(KERN_DEBUG "i2c-core.o: " "detaching client %s:\n", client->name)); if ((res = driver-> detach_client(client))) { - printk("i2c-core.o: while " + printk(KERN_ERR "i2c-core.o: while " "unregistering driver " "`%s', the client at " - "address %02x of " - "adapter `%s' could not" - "be detached; driver" - "not unloaded!", + "address %02x of adapter `%s' could not be " + "detached; driver not unloaded!", driver->name, client->addr, adap->name); @@ -400,7 +376,7 @@ driver_count--; DRV_UNLOCK(); - DEB(printk("i2c-core.o: driver unregistered: %s\n",driver->name)); + DEB(printk(KERN_DEBUG "i2c-core.o: driver unregistered: %s\n",driver->name)); return 0; } @@ -436,10 +412,10 @@ if (adapter->client_register) if (adapter->client_register(client)) - printk("i2c-core.o: warning: client_register seems " + printk(KERN_DEBUG "i2c-core.o: warning: client_register seems " "to have failed for client %02x at adapter %s\n", client->addr,adapter->name); - DEB(printk("i2c-core.o: client [%s] registered to adapter [%s](pos. %d).\n", + DEB(printk(KERN_DEBUG "i2c-core.o: client [%s] registered to adapter [%s](pos. %d).\n", client->name, adapter->name,i)); if(client->flags & I2C_CLIENT_ALLOW_USE) @@ -470,7 +446,7 @@ if (adapter->client_unregister != NULL) if ((res = adapter->client_unregister(client))) { - printk("i2c-core.o: client_unregister [%s] failed, " + printk(KERN_ERR "i2c-core.o: client_unregister [%s] failed, " "client not detached",client->name); return res; } @@ -478,7 +454,7 @@ adapter->clients[i] = NULL; adapter->client_count--; - DEB(printk("i2c-core.o: client [%s] unregistered.\n",client->name)); + DEB(printk(KERN_DEBUG "i2c-core.o: client [%s] unregistered.\n",client->name)); return 0; } @@ -611,18 +587,6 @@ #ifdef CONFIG_PROC_FS -#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,3,27)) -/* Monitor access to /proc/bus/i2c*; make unloading i2c-proc impossible - if some process still uses it or some file in it */ -void monitor_bus_i2c(struct inode *inode, int fill) -{ - if (fill) - MOD_INC_USE_COUNT; - else - MOD_DEC_USE_COUNT; -} -#endif /* (LINUX_VERSION_CODE <= KERNEL_VERSION(2,3,37)) */ - /* This function generates the output for /proc/bus/i2c */ int read_bus_i2c(char *buf, char **start, off_t offset, int len, int *eof, void *private) @@ -659,12 +623,12 @@ int i,j,k,order_nr,len=0,len_total; int order[I2C_CLIENT_MAX]; - if (count > 4000) + if (count > 4096) return -EINVAL; len_total = file->f_pos + count; /* Too bad if this gets longer (unlikely) */ - if (len_total > 4000) - len_total = 4000; + if (len_total > 4096) + len_total = 4096; for (i = 0; i < I2C_ADAP_MAX; i++) if (adapters[i]->inode == inode->i_ino) { /* We need a bit of slack in the kernel buffer; this makes the @@ -720,22 +684,18 @@ i2cproc_initialized = 0; if (! proc_bus) { - printk("i2c-core.o: /proc/bus/ does not exist"); + printk(KERN_ERR "i2c-core.o: /proc/bus/ does not exist"); i2cproc_cleanup(); return -ENOENT; } proc_bus_i2c = create_proc_entry("i2c",0,proc_bus); if (!proc_bus_i2c) { - printk("i2c-core.o: Could not create /proc/bus/i2c"); + printk(KERN_ERR "i2c-core.o: Could not create /proc/bus/i2c"); i2cproc_cleanup(); return -ENOENT; } proc_bus_i2c->read_proc = &read_bus_i2c; -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,27)) proc_bus_i2c->owner = THIS_MODULE; -#else - proc_bus_i2c->fill_inode = &monitor_bus_i2c; -#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,27)) */ i2cproc_initialized += 2; return 0; } @@ -765,7 +725,7 @@ conditional_schedule(); if (adap->algo->master_xfer) { - DEB2(printk("i2c-core.o: master_xfer: %s with %d msgs.\n", + DEB2(printk(KERN_DEBUG "i2c-core.o: master_xfer: %s with %d msgs.\n", adap->name,num)); I2C_LOCK(adap); @@ -774,7 +734,7 @@ return ret; } else { - printk("i2c-core.o: I2C adapter %04x: I2C level transfers not supported\n", + printk(KERN_ERR "i2c-core.o: I2C adapter %04x: I2C level transfers not supported\n", adap->id); return -ENOSYS; } @@ -794,7 +754,7 @@ msg.len = count; (const char *)msg.buf = buf; - DEB2(printk("i2c-core.o: master_send: writing %d bytes on %s.\n", + DEB2(printk(KERN_DEBUG "i2c-core.o: master_send: writing %d bytes on %s.\n", count,client->adapter->name)); I2C_LOCK(adap); @@ -806,7 +766,7 @@ */ return (ret == 1 )? count : ret; } else { - printk("i2c-core.o: I2C adapter %04x: I2C level transfers not supported\n", + printk(KERN_ERR "i2c-core.o: I2C adapter %04x: I2C level transfers not supported\n", client->adapter->id); return -ENOSYS; } @@ -827,14 +787,14 @@ msg.len = count; msg.buf = buf; - DEB2(printk("i2c-core.o: master_recv: reading %d bytes on %s.\n", + DEB2(printk(KERN_DEBUG "i2c-core.o: master_recv: reading %d bytes on %s.\n", count,client->adapter->name)); I2C_LOCK(adap); ret = adap->algo->master_xfer(adap,&msg,1); I2C_UNLOCK(adap); - DEB2(printk("i2c-core.o: master_recv: return:%d (count:%d, addr:0x%02x)\n", + DEB2(printk(KERN_DEBUG "i2c-core.o: master_recv: return:%d (count:%d, addr:0x%02x)\n", ret, count, client->addr)); /* if everything went ok (i.e. 1 msg transmitted), return #bytes @@ -842,7 +802,7 @@ */ return (ret == 1 )? count : ret; } else { - printk("i2c-core.o: I2C adapter %04x: I2C level transfers not supported\n", + printk(KERN_DEBUG "i2c-core.o: I2C adapter %04x: I2C level transfers not supported\n", client->adapter->id); return -ENOSYS; } @@ -855,7 +815,7 @@ int ret = 0; struct i2c_adapter *adap = client->adapter; - DEB2(printk("i2c-core.o: i2c ioctl, cmd: 0x%x, arg: %#lx\n", cmd, arg)); + DEB2(printk(KERN_DEBUG "i2c-core.o: i2c ioctl, cmd: 0x%x, arg: %#lx\n", cmd, arg)); switch ( cmd ) { case I2C_RETRIES: adap->retries = arg; @@ -900,7 +860,7 @@ if (((adap_id == address_data->force[i]) || (address_data->force[i] == ANY_I2C_BUS)) && (addr == address_data->force[i+1])) { - DEB2(printk("i2c-core.o: found force parameter for adapter %d, addr %04x\n", + DEB2(printk(KERN_DEBUG "i2c-core.o: found force parameter for adapter %d, addr %04x\n", adap_id,addr)); if ((err = found_proc(adapter,addr,0,0))) return err; @@ -918,7 +878,7 @@ if (((adap_id == address_data->ignore[i]) || ((address_data->ignore[i] == ANY_I2C_BUS))) && (addr == address_data->ignore[i+1])) { - DEB2(printk("i2c-core.o: found ignore parameter for adapter %d, " + DEB2(printk(KERN_DEBUG "i2c-core.o: found ignore parameter for adapter %d, " "addr %04x\n", adap_id ,addr)); found = 1; } @@ -930,7 +890,7 @@ ((address_data->ignore_range[i]==ANY_I2C_BUS))) && (addr >= address_data->ignore_range[i+1]) && (addr <= address_data->ignore_range[i+2])) { - DEB2(printk("i2c-core.o: found ignore_range parameter for adapter %d, " + DEB2(printk(KERN_DEBUG "i2c-core.o: found ignore_range parameter for adapter %d, " "addr %04x\n", adap_id,addr)); found = 1; } @@ -945,7 +905,7 @@ i += 1) { if (addr == address_data->normal_i2c[i]) { found = 1; - DEB2(printk("i2c-core.o: found normal i2c entry for adapter %d, " + DEB2(printk(KERN_DEBUG "i2c-core.o: found normal i2c entry for adapter %d, " "addr %02x", adap_id,addr)); } } @@ -956,7 +916,7 @@ if ((addr >= address_data->normal_i2c_range[i]) && (addr <= address_data->normal_i2c_range[i+1])) { found = 1; - DEB2(printk("i2c-core.o: found normal i2c_range entry for adapter %d, " + DEB2(printk(KERN_DEBUG "i2c-core.o: found normal i2c_range entry for adapter %d, " "addr %04x\n", adap_id,addr)); } } @@ -968,7 +928,7 @@ ((address_data->probe[i] == ANY_I2C_BUS))) && (addr == address_data->probe[i+1])) { found = 1; - DEB2(printk("i2c-core.o: found probe parameter for adapter %d, " + DEB2(printk(KERN_DEBUG "i2c-core.o: found probe parameter for adapter %d, " "addr %04x\n", adap_id,addr)); } } @@ -980,7 +940,7 @@ (addr >= address_data->probe_range[i+1]) && (addr <= address_data->probe_range[i+2])) { found = 1; - DEB2(printk("i2c-core.o: found probe_range parameter for adapter %d, " + DEB2(printk(KERN_DEBUG "i2c-core.o: found probe_range parameter for adapter %d, " "addr %04x\n", adap_id,addr)); } } @@ -1010,6 +970,123 @@ /* The SMBus parts */ +#define POLY (0x1070U << 3) +static u8 +crc8(u16 data) +{ + int i; + + for(i = 0; i < 8; i++) { + if (data & 0x8000) + data = data ^ POLY; + data = data << 1; + } + return (u8)(data >> 8); +} + +/* CRC over count bytes in the first array plus the bytes in the rest + array if it is non-null. rest[0] is the (length of rest) - 1 + and is included. */ +u8 i2c_smbus_partial_pec(u8 crc, int count, u8 *first, u8 *rest) +{ + int i; + + for(i = 0; i < count; i++) + crc = crc8((crc ^ first[i]) << 8); + if(rest != NULL) + for(i = 0; i <= rest[0]; i++) + crc = crc8((crc ^ rest[i]) << 8); + return crc; +} + +u8 i2c_smbus_pec(int count, u8 *first, u8 *rest) +{ + return i2c_smbus_partial_pec(0, count, first, rest); +} + +/* Returns new "size" (transaction type) + Note that we convert byte to byte_data and byte_data to word_data + rather than invent new xxx_PEC transactions. */ +int i2c_smbus_add_pec(u16 addr, u8 command, int size, + union i2c_smbus_data *data) +{ + u8 buf[3]; + + buf[0] = addr << 1; + buf[1] = command; + switch(size) { + case I2C_SMBUS_BYTE: + data->byte = i2c_smbus_pec(2, buf, NULL); + size = I2C_SMBUS_BYTE_DATA; + break; + case I2C_SMBUS_BYTE_DATA: + buf[2] = data->byte; + data->word = buf[2] || + (i2c_smbus_pec(3, buf, NULL) << 8); + size = I2C_SMBUS_WORD_DATA; + break; + case I2C_SMBUS_WORD_DATA: + /* unsupported */ + break; + case I2C_SMBUS_BLOCK_DATA: + data->block[data->block[0] + 1] = + i2c_smbus_pec(2, buf, data->block); + size = I2C_SMBUS_BLOCK_DATA_PEC; + break; + } + return size; +} + +int i2c_smbus_check_pec(u16 addr, u8 command, int size, u8 partial, + union i2c_smbus_data *data) +{ + u8 buf[3], rpec, cpec; + + buf[1] = command; + switch(size) { + case I2C_SMBUS_BYTE_DATA: + buf[0] = (addr << 1) | 1; + cpec = i2c_smbus_pec(2, buf, NULL); + rpec = data->byte; + break; + case I2C_SMBUS_WORD_DATA: + buf[0] = (addr << 1) | 1; + buf[2] = data->word & 0xff; + cpec = i2c_smbus_pec(3, buf, NULL); + rpec = data->word >> 8; + break; + case I2C_SMBUS_WORD_DATA_PEC: + /* unsupported */ + cpec = rpec = 0; + break; + case I2C_SMBUS_PROC_CALL_PEC: + /* unsupported */ + cpec = rpec = 0; + break; + case I2C_SMBUS_BLOCK_DATA_PEC: + buf[0] = (addr << 1); + buf[2] = (addr << 1) | 1; + cpec = i2c_smbus_pec(3, buf, data->block); + rpec = data->block[data->block[0] + 1]; + break; + case I2C_SMBUS_BLOCK_PROC_CALL_PEC: + buf[0] = (addr << 1) | 1; + rpec = i2c_smbus_partial_pec(partial, 1, + buf, data->block); + cpec = data->block[data->block[0] + 1]; + break; + default: + cpec = rpec = 0; + break; + } + if(rpec != cpec) { + DEB(printk(KERN_DEBUG "i2c-core.o: Bad PEC 0x%02x vs. 0x%02x\n", + rpec, cpec)); + return -1; + } + return 0; +} + extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value) { return i2c_smbus_xfer(client->adapter,client->addr,client->flags, @@ -1028,8 +1105,9 @@ extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value) { + union i2c_smbus_data data; /* only for PEC */ return i2c_smbus_xfer(client->adapter,client->addr,client->flags, - I2C_SMBUS_WRITE,value, I2C_SMBUS_BYTE,NULL); + I2C_SMBUS_WRITE,value, I2C_SMBUS_BYTE,&data); } extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command) @@ -1107,8 +1185,8 @@ { union i2c_smbus_data data; int i; - if (length > 32) - length = 32; + if (length > I2C_SMBUS_BLOCK_MAX) + length = I2C_SMBUS_BLOCK_MAX; for (i = 1; i <= length; i++) data.block[i] = values[i-1]; data.block[0] = length; @@ -1117,13 +1195,50 @@ I2C_SMBUS_BLOCK_DATA,&data); } +/* Returns the number of read bytes */ +extern s32 i2c_smbus_block_process_call(struct i2c_client * client, + u8 command, u8 length, u8 *values) +{ + union i2c_smbus_data data; + int i; + if (length > I2C_SMBUS_BLOCK_MAX - 1) + return -1; + data.block[0] = length; + for (i = 1; i <= length; i++) + data.block[i] = values[i-1]; + if(i2c_smbus_xfer(client->adapter,client->addr,client->flags, + I2C_SMBUS_WRITE, command, + I2C_SMBUS_BLOCK_PROC_CALL, &data)) + return -1; + for (i = 1; i <= data.block[0]; i++) + values[i-1] = data.block[i]; + return data.block[0]; +} + +/* Returns the number of read bytes */ +extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client, + u8 command, u8 *values) +{ + union i2c_smbus_data data; + int i; + if (i2c_smbus_xfer(client->adapter,client->addr,client->flags, + I2C_SMBUS_READ,command, + I2C_SMBUS_I2C_BLOCK_DATA,&data)) + return -1; + else { + for (i = 1; i <= data.block[0]; i++) + values[i-1] = data.block[i]; + return data.block[0]; + } +} + extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client, u8 command, u8 length, u8 *values) { union i2c_smbus_data data; int i; - if (length > 32) - length = 32; + if (length > I2C_SMBUS_I2C_BLOCK_MAX) + length = I2C_SMBUS_I2C_BLOCK_MAX; for (i = 1; i <= length; i++) data.block[i] = values[i-1]; data.block[0] = length; @@ -1185,30 +1300,54 @@ break; case I2C_SMBUS_PROC_CALL: num = 2; /* Special case */ + read_write = I2C_SMBUS_READ; msg[0].len = 3; msg[1].len = 2; msgbuf0[1] = data->word & 0xff; msgbuf0[2] = (data->word >> 8) & 0xff; break; case I2C_SMBUS_BLOCK_DATA: + case I2C_SMBUS_BLOCK_DATA_PEC: if (read_write == I2C_SMBUS_READ) { - printk("i2c-core.o: Block read not supported under " - "I2C emulation!\n"); - return -1; + printk(KERN_ERR "i2c-core.o: Block read not supported " + "under I2C emulation!\n"); + return -1; } else { msg[0].len = data->block[0] + 2; - if (msg[0].len > 34) { - printk("i2c-core.o: smbus_access called with " + if (msg[0].len > I2C_SMBUS_BLOCK_MAX + 2) { + printk(KERN_ERR "i2c-core.o: smbus_access called with " "invalid block write size (%d)\n", - msg[0].len); + data->block[0]); return -1; } + if(size == I2C_SMBUS_BLOCK_DATA_PEC) + (msg[0].len)++; for (i = 1; i <= msg[0].len; i++) msgbuf0[i] = data->block[i-1]; } break; + case I2C_SMBUS_BLOCK_PROC_CALL: + case I2C_SMBUS_BLOCK_PROC_CALL_PEC: + printk(KERN_ERR "i2c-core.o: Block process call not supported " + "under I2C emulation!\n"); + return -1; + case I2C_SMBUS_I2C_BLOCK_DATA: + if (read_write == I2C_SMBUS_READ) { + msg[1].len = I2C_SMBUS_I2C_BLOCK_MAX; + } else { + msg[0].len = data->block[0] + 2; + if (msg[0].len > I2C_SMBUS_I2C_BLOCK_MAX + 2) { + printk("i2c-core.o: i2c_smbus_xfer_emulated called with " + "invalid block write size (%d)\n", + data->block[0]); + return -1; + } + for (i = 0; i < data->block[0]; i++) + msgbuf0[i] = data->block[i+1]; + } + break; default: - printk("i2c-core.o: smbus_access called with invalid size (%d)\n", + printk(KERN_ERR "i2c-core.o: smbus_access called with invalid size (%d)\n", size); return -1; } @@ -1228,6 +1367,12 @@ case I2C_SMBUS_PROC_CALL: data->word = msgbuf1[0] | (msgbuf1[1] << 8); break; + case I2C_SMBUS_I2C_BLOCK_DATA: + /* fixed at 32 for now */ + data->block[0] = I2C_SMBUS_I2C_BLOCK_MAX; + for (i = 0; i < I2C_SMBUS_I2C_BLOCK_MAX; i++) + data->block[i+1] = msgbuf1[i]; + break; } return 0; } @@ -1238,7 +1383,29 @@ union i2c_smbus_data * data) { s32 res; - flags = flags & I2C_M_TEN; + int swpec = 0; + u8 partial = 0; + + flags &= I2C_M_TEN | I2C_CLIENT_PEC; + if((flags & I2C_CLIENT_PEC) && + !(i2c_check_functionality(adapter, I2C_FUNC_SMBUS_HWPEC_CALC))) { + swpec = 1; + if(read_write == I2C_SMBUS_READ && + size == I2C_SMBUS_BLOCK_DATA) + size = I2C_SMBUS_BLOCK_DATA_PEC; + else if(size == I2C_SMBUS_PROC_CALL) + size = I2C_SMBUS_PROC_CALL_PEC; + else if(size == I2C_SMBUS_BLOCK_PROC_CALL) { + i2c_smbus_add_pec(addr, command, + I2C_SMBUS_BLOCK_DATA, data); + partial = data->block[data->block[0] + 1]; + size = I2C_SMBUS_BLOCK_PROC_CALL_PEC; + } else if(read_write == I2C_SMBUS_WRITE && + size != I2C_SMBUS_QUICK && + size != I2C_SMBUS_I2C_BLOCK_DATA) + size = i2c_smbus_add_pec(addr, command, size, data); + } + if (adapter->algo->smbus_xfer) { I2C_LOCK(adapter); res = adapter->algo->smbus_xfer(adapter,addr,flags,read_write, @@ -1247,6 +1414,14 @@ } else res = i2c_smbus_xfer_emulated(adapter,addr,flags,read_write, command,size,data); + + if(res >= 0 && swpec && + size != I2C_SMBUS_QUICK && size != I2C_SMBUS_I2C_BLOCK_DATA && + (read_write == I2C_SMBUS_READ || size == I2C_SMBUS_PROC_CALL_PEC || + size == I2C_SMBUS_BLOCK_PROC_CALL_PEC)) { + if(i2c_smbus_check_pec(addr, command, size, partial, data)) + return -1; + } return res; } @@ -1270,7 +1445,7 @@ static int __init i2c_init(void) { - printk("i2c-core.o: i2c core module\n"); + printk(KERN_INFO "i2c-core.o: i2c core module version %s (%s)\n", I2C_VERSION, I2C_DATE); memset(adapters,0,sizeof(adapters)); memset(drivers,0,sizeof(drivers)); adap_count=0; @@ -1408,6 +1583,8 @@ EXPORT_SYMBOL(i2c_smbus_process_call); EXPORT_SYMBOL(i2c_smbus_read_block_data); EXPORT_SYMBOL(i2c_smbus_write_block_data); +EXPORT_SYMBOL(i2c_smbus_read_i2c_block_data); +EXPORT_SYMBOL(i2c_smbus_write_i2c_block_data); EXPORT_SYMBOL(i2c_get_functionality); EXPORT_SYMBOL(i2c_check_functionality); --- linux/drivers/i2c/i2c-dev.c.orig 2001-10-11 11:05:47.000000000 -0400 +++ linux/drivers/i2c/i2c-dev.c 2002-07-23 09:01:28.000000000 -0400 @@ -28,7 +28,7 @@ /* The devfs code is contributed by Philipp Matthias Hahn */ -/* $Id: i2c-dev.c,v 1.40 2001/08/25 01:28:01 mds Exp $ */ +/* $Id: i2c-dev.c,v 1.46 2002/07/06 02:07:39 mds Exp $ */ #include #include @@ -36,9 +36,7 @@ #include #include #include -#if LINUX_KERNEL_VERSION >= KERNEL_VERSION(2,4,0) #include -#endif /* LINUX_KERNEL_VERSION >= KERNEL_VERSION(2,4,0) */ #ifdef CONFIG_DEVFS_FS #include #endif @@ -49,7 +47,6 @@ #include #include - #include #include @@ -60,9 +57,6 @@ /* struct file_operations changed too often in the 2.1 series for nice code */ -#if LINUX_KERNEL_VERSION < KERNEL_VERSION(2,4,9) -static loff_t i2cdev_lseek (struct file *file, loff_t offset, int origin); -#endif static ssize_t i2cdev_read (struct file *file, char *buf, size_t count, loff_t *offset); static ssize_t i2cdev_write (struct file *file, const char *buf, size_t count, @@ -88,14 +82,8 @@ static int i2cdev_cleanup(void); static struct file_operations i2cdev_fops = { -#if LINUX_KERNEL_VERSION >= KERNEL_VERSION(2,4,0) owner: THIS_MODULE, -#endif /* LINUX_KERNEL_VERSION >= KERNEL_VERSION(2,4,0) */ -#if LINUX_KERNEL_VERSION < KERNEL_VERSION(2,4,9) - llseek: i2cdev_lseek, -#else llseek: no_llseek, -#endif read: i2cdev_read, write: i2cdev_write, ioctl: i2cdev_ioctl, @@ -133,20 +121,6 @@ static int i2cdev_initialized; -#if LINUX_KERNEL_VERSION < KERNEL_VERSION(2,4,9) -/* Note that the lseek function is called llseek in 2.1 kernels. But things - are complicated enough as is. */ -loff_t i2cdev_lseek (struct file *file, loff_t offset, int origin) -{ -#ifdef DEBUG - struct inode *inode = file->f_dentry->d_inode; - printk("i2c-dev.o: i2c-%d lseek to %ld bytes relative to %d.\n", - MINOR(inode->i_rdev),(long) offset,origin); -#endif /* DEBUG */ - return -ESPIPE; -} -#endif - static ssize_t i2cdev_read (struct file *file, char *buf, size_t count, loff_t *offset) { @@ -165,7 +139,7 @@ return -ENOMEM; #ifdef DEBUG - printk("i2c-dev.o: i2c-%d reading %d bytes.\n",MINOR(inode->i_rdev), + printk(KERN_DEBUG "i2c-dev.o: i2c-%d reading %d bytes.\n",MINOR(inode->i_rdev), count); #endif @@ -197,7 +171,7 @@ } #ifdef DEBUG - printk("i2c-dev.o: i2c-%d writing %d bytes.\n",MINOR(inode->i_rdev), + printk(KERN_DEBUG "i2c-dev.o: i2c-%d writing %d bytes.\n",MINOR(inode->i_rdev), count); #endif ret = i2c_master_send(client,tmp,count); @@ -217,7 +191,7 @@ unsigned long funcs; #ifdef DEBUG - printk("i2c-dev.o: i2c-%d ioctl, cmd: 0x%x, arg: %lx.\n", + printk(KERN_DEBUG "i2c-dev.o: i2c-%d ioctl, cmd: 0x%x, arg: %lx.\n", MINOR(inode->i_rdev),cmd, arg); #endif /* DEBUG */ @@ -237,6 +211,12 @@ else client->flags &= ~I2C_M_TEN; return 0; + case I2C_PEC: + if (arg) + client->flags |= I2C_CLIENT_PEC; + else + client->flags &= ~I2C_CLIENT_PEC; + return 0; case I2C_FUNCS: funcs = i2c_get_functionality(client->adapter); return (copy_to_user((unsigned long *)arg,&funcs, @@ -313,9 +293,10 @@ (data_arg.size != I2C_SMBUS_WORD_DATA) && (data_arg.size != I2C_SMBUS_PROC_CALL) && (data_arg.size != I2C_SMBUS_BLOCK_DATA) && - (data_arg.size != I2C_SMBUS_I2C_BLOCK_DATA)) { + (data_arg.size != I2C_SMBUS_I2C_BLOCK_DATA) && + (data_arg.size != I2C_SMBUS_BLOCK_PROC_CALL)) { #ifdef DEBUG - printk("i2c-dev.o: size out of range (%x) in ioctl I2C_SMBUS.\n", + printk(KERN_DEBUG "i2c-dev.o: size out of range (%x) in ioctl I2C_SMBUS.\n", data_arg.size); #endif return -EINVAL; @@ -325,7 +306,7 @@ if ((data_arg.read_write != I2C_SMBUS_READ) && (data_arg.read_write != I2C_SMBUS_WRITE)) { #ifdef DEBUG - printk("i2c-dev.o: read_write out of range (%x) in ioctl I2C_SMBUS.\n", + printk(KERN_DEBUG "i2c-dev.o: read_write out of range (%x) in ioctl I2C_SMBUS.\n", data_arg.read_write); #endif return -EINVAL; @@ -345,7 +326,7 @@ if (data_arg.data == NULL) { #ifdef DEBUG - printk("i2c-dev.o: data is NULL pointer in ioctl I2C_SMBUS.\n"); + printk(KERN_DEBUG "i2c-dev.o: data is NULL pointer in ioctl I2C_SMBUS.\n"); #endif return -EINVAL; } @@ -356,10 +337,11 @@ else if ((data_arg.size == I2C_SMBUS_WORD_DATA) || (data_arg.size == I2C_SMBUS_PROC_CALL)) datasize = sizeof(data_arg.data->word); - else /* size == I2C_SMBUS_BLOCK_DATA */ + else /* size == smbus block, i2c block, or block proc. call */ datasize = sizeof(data_arg.data->block); if ((data_arg.size == I2C_SMBUS_PROC_CALL) || + (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) || (data_arg.read_write == I2C_SMBUS_WRITE)) { if (copy_from_user(&temp, data_arg.data, datasize)) return -EFAULT; @@ -368,6 +350,7 @@ data_arg.read_write, data_arg.command,data_arg.size,&temp); if (! res && ((data_arg.size == I2C_SMBUS_PROC_CALL) || + (data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) || (data_arg.read_write == I2C_SMBUS_READ))) { if (copy_to_user(data_arg.data, &temp, datasize)) return -EFAULT; @@ -387,7 +370,7 @@ if ((minor >= I2CDEV_ADAPS_MAX) || ! (i2cdev_adaps[minor])) { #ifdef DEBUG - printk("i2c-dev.o: Trying to open unattached adapter i2c-%d\n", + printk(KERN_DEBUG "i2c-dev.o: Trying to open unattached adapter i2c-%d\n", minor); #endif return -ENODEV; @@ -403,12 +386,8 @@ if (i2cdev_adaps[minor]->inc_use) i2cdev_adaps[minor]->inc_use(i2cdev_adaps[minor]); -#if LINUX_KERNEL_VERSION < KERNEL_VERSION(2,4,0) - MOD_INC_USE_COUNT; -#endif /* LINUX_KERNEL_VERSION < KERNEL_VERSION(2,4,0) */ - #ifdef DEBUG - printk("i2c-dev.o: opened i2c-%d\n",minor); + printk(KERN_DEBUG "i2c-dev.o: opened i2c-%d\n",minor); #endif return 0; } @@ -419,18 +398,12 @@ kfree(file->private_data); file->private_data=NULL; #ifdef DEBUG - printk("i2c-dev.o: Closed: i2c-%d\n", minor); + printk(KERN_DEBUG "i2c-dev.o: Closed: i2c-%d\n", minor); #endif -#if LINUX_KERNEL_VERSION < KERNEL_VERSION(2,4,0) - MOD_DEC_USE_COUNT; -#else /* LINUX_KERNEL_VERSION >= KERNEL_VERSION(2,4,0) */ lock_kernel(); -#endif /* LINUX_KERNEL_VERSION < KERNEL_VERSION(2,4,0) */ if (i2cdev_adaps[minor]->dec_use) i2cdev_adaps[minor]->dec_use(i2cdev_adaps[minor]); -#if LINUX_KERNEL_VERSION >= KERNEL_VERSION(2,4,0) unlock_kernel(); -#endif /* LINUX_KERNEL_VERSION >= KERNEL_VERSION(2,4,0) */ return 0; } @@ -440,11 +413,11 @@ char name[8]; if ((i = i2c_adapter_id(adap)) < 0) { - printk("i2c-dev.o: Unknown adapter ?!?\n"); + printk(KERN_DEBUG "i2c-dev.o: Unknown adapter ?!?\n"); return -ENODEV; } if (i >= I2CDEV_ADAPS_MAX) { - printk("i2c-dev.o: Adapter number too large?!? (%d)\n",i); + printk(KERN_DEBUG "i2c-dev.o: Adapter number too large?!? (%d)\n",i); return -ENODEV; } @@ -457,7 +430,7 @@ S_IFCHR | S_IRUSR | S_IWUSR, &i2cdev_fops, NULL); #endif - printk("i2c-dev.o: Registered '%s' as minor %d\n",adap->name,i); + printk(KERN_DEBUG "i2c-dev.o: Registered '%s' as minor %d\n",adap->name,i); } else { /* This is actually a detach_adapter call! */ #ifdef CONFIG_DEVFS_FS @@ -465,7 +438,7 @@ #endif i2cdev_adaps[i] = NULL; #ifdef DEBUG - printk("i2c-dev.o: Adapter unregistered: %s\n",adap->name); + printk(KERN_DEBUG "i2c-dev.o: Adapter unregistered: %s\n",adap->name); #endif } @@ -487,7 +460,7 @@ { int res; - printk("i2c-dev.o: i2c /dev entries driver module\n"); + printk(KERN_INFO "i2c-dev.o: i2c /dev entries driver module version %s (%s)\n", I2C_VERSION, I2C_DATE); i2cdev_initialized = 0; #ifdef CONFIG_DEVFS_FS @@ -495,7 +468,7 @@ #else if (register_chrdev(I2C_MAJOR,"i2c",&i2cdev_fops)) { #endif - printk("i2c-dev.o: unable to get major %d for i2c bus\n", + printk(KERN_ERR "i2c-dev.o: unable to get major %d for i2c bus\n", I2C_MAJOR); return -EIO; } @@ -505,7 +478,7 @@ i2cdev_initialized ++; if ((res = i2c_add_driver(&i2cdev_driver))) { - printk("i2c-dev.o: Driver registration failed, module not inserted.\n"); + printk(KERN_ERR "i2c-dev.o: Driver registration failed, module not inserted.\n"); i2cdev_cleanup(); return res; } @@ -519,7 +492,7 @@ if (i2cdev_initialized >= 2) { if ((res = i2c_del_driver(&i2cdev_driver))) { - printk("i2c-dev.o: Driver deregistration failed, " + printk(KERN_ERR "i2c-dev.o: Driver deregistration failed, " "module not removed.\n"); return res; } @@ -533,7 +506,7 @@ #else if ((res = unregister_chrdev(I2C_MAJOR,"i2c"))) { #endif - printk("i2c-dev.o: unable to release major %d for i2c bus\n", + printk(KERN_ERR "i2c-dev.o: unable to release major %d for i2c bus\n", I2C_MAJOR); return res; } --- linux/include/linux/i2c-dev.h.orig 2001-10-11 11:05:47.000000000 -0400 +++ linux/include/linux/i2c-dev.h 2002-07-23 01:54:44.000000000 -0400 @@ -19,7 +19,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* $Id: i2c-dev.h,v 1.9 2001/08/15 03:04:58 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 @@ else { for (i = 1; i <= data.block[0]; i++) values[i-1] = data.block[i]; - return data.block[0]; + return data.block[0]; } } @@ -162,6 +162,22 @@ I2C_SMBUS_BLOCK_DATA, &data); } +/* Returns the number of read bytes */ +static inline __s32 i2c_smbus_read_i2c_block_data(int file, __u8 command, + __u8 *values) +{ + union i2c_smbus_data data; + int i; + if (i2c_smbus_access(file,I2C_SMBUS_READ,command, + I2C_SMBUS_I2C_BLOCK_DATA,&data)) + return -1; + else { + for (i = 1; i <= data.block[0]; i++) + values[i-1] = data.block[i]; + return data.block[0]; + } +} + static inline __s32 i2c_smbus_write_i2c_block_data(int file, __u8 command, __u8 length, __u8 *values) { @@ -176,6 +192,27 @@ 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 --- linux/include/linux/i2c-id.h.orig 2001-10-11 11:05:47.000000000 -0400 +++ linux/include/linux/i2c-id.h 2002-07-23 01:45:21.000000000 -0400 @@ -20,7 +20,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* ------------------------------------------------------------------------- */ -/* $Id: i2c-id.h,v 1.35 2001/08/12 17:22:20 mds Exp $ */ +/* $Id: i2c-id.h,v 1.52 2002/07/10 13:28:44 abz Exp $ */ #ifndef I2C_ID_H #define I2C_ID_H @@ -90,6 +90,14 @@ #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_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 */ + + #define I2C_DRIVERID_EXP0 0xF0 /* experimental use id's */ #define I2C_DRIVERID_EXP1 0xF1 @@ -98,6 +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 */ @@ -127,6 +137,12 @@ #define I2C_DRIVERID_ADM1024 1025 #define I2C_DRIVERID_IT87 1026 #define I2C_DRIVERID_CH700X 1027 /* single driver for CH7003-7009 digital pc to tv encoders */ +#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 ---------------------------------------------------- @@ -143,10 +159,12 @@ #define I2C_ALGO_ISA 0x050000 /* lm_sensors ISA pseudo-adapter */ #define I2C_ALGO_SAA7146 0x060000 /* SAA 7146 video decoder bus */ #define I2C_ALGO_ACB 0x070000 /* ACCESS.bus algorithm */ - +#define I2C_ALGO_IIC 0x080000 /* ITE IIC bus */ +#define I2C_ALGO_SAA7134 0x090000 #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 */ @@ -174,9 +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 */ @@ -189,6 +209,13 @@ /* --- MPC8xx PowerPC adapters */ #define I2C_HW_MPC8XX_EPON 0x00 /* Eponymous MPC8xx I2C adapter */ +/* --- 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 --- linux/drivers/i2c/i2c-proc.c.orig 2002-02-25 14:37:57.000000000 -0500 +++ linux/drivers/i2c/i2c-proc.c 2002-07-23 09:14:57.000000000 -0400 @@ -32,16 +32,10 @@ #include #include #include - #include #include - #include -/* FIXME need i2c versioning */ -#define LM_DATE "20010825" -#define LM_VERSION "2.6.1" - #ifndef THIS_MODULE #define THIS_MODULE NULL #endif @@ -67,10 +61,6 @@ static struct i2c_client *i2c_clients[SENSORS_ENTRY_MAX]; static unsigned short i2c_inodes[SENSORS_ENTRY_MAX]; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,1) -static void i2c_fill_inode(struct inode *inode, int fill); -static void i2c_dir_fill_inode(struct inode *inode, int fill); -#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,3,1) */ static ctl_table sysctl_table[] = { {CTL_DEV, "dev", NULL, 0, 0555}, @@ -180,9 +170,10 @@ new_table[i].extra2 = client; if (!(new_header = register_sysctl_table(new_table, 0))) { + printk(KERN_ERR "i2c-proc.o: error: sysctl interface not supported by kernel!\n"); kfree(new_table); kfree(name); - return -ENOMEM; + return -EPERM; } i2c_entries[id - 256] = new_header; @@ -194,18 +185,13 @@ !new_header->ctl_table->child->child || !new_header->ctl_table->child->child->de) { printk - ("i2c-proc.o: NULL pointer when trying to install fill_inode fix!\n"); + (KERN_ERR "i2c-proc.o: NULL pointer when trying to install fill_inode fix!\n"); return id; } #endif /* DEBUG */ i2c_inodes[id - 256] = new_header->ctl_table->child->child->de->low_ino; -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,27)) new_header->ctl_table->child->child->de->owner = controlling_mod; -#else - new_header->ctl_table->child->child->de->fill_inode = - &i2c_dir_fill_inode; -#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,27)) */ return id; } @@ -247,7 +233,7 @@ #ifdef DEBUG if (!inode) { - printk("i2c-proc.o: Warning: inode NULL in fill_inode()\n"); + printk(KERN_ERR "i2c-proc.o: Warning: inode NULL in fill_inode()\n"); return; } #endif /* def DEBUG */ @@ -258,7 +244,7 @@ #ifdef DEBUG if (i == SENSORS_ENTRY_MAX) { printk - ("i2c-proc.o: Warning: inode (%ld) not found in fill_inode()\n", + (KERN_ERR "i2c-proc.o: Warning: inode (%ld) not found in fill_inode()\n", inode->i_ino); return; } @@ -684,7 +670,7 @@ && (addr == this_force->force[j + 1])) { #ifdef DEBUG printk - ("i2c-proc.o: found force parameter for adapter %d, addr %04x\n", + (KERN_DEBUG "i2c-proc.o: found force parameter for adapter %d, addr %04x\n", adapter_id, addr); #endif if ( @@ -714,7 +700,7 @@ && (addr == address_data->ignore[i + 1])) { #ifdef DEBUG printk - ("i2c-proc.o: found ignore parameter for adapter %d, " + (KERN_DEBUG "i2c-proc.o: found ignore parameter for adapter %d, " "addr %04x\n", adapter_id, addr); #endif found = 1; @@ -734,7 +720,7 @@ && (addr <= address_data->ignore_range[i + 2])) { #ifdef DEBUG printk - ("i2c-proc.o: found ignore_range parameter for adapter %d, " + (KERN_DEBUG "i2c-proc.o: found ignore_range parameter for adapter %d, " "addr %04x\n", adapter_id, addr); #endif found = 1; @@ -753,7 +739,7 @@ if (addr == address_data->normal_isa[i]) { #ifdef DEBUG printk - ("i2c-proc.o: found normal isa entry for adapter %d, " + (KERN_DEBUG "i2c-proc.o: found normal isa entry for adapter %d, " "addr %04x\n", adapter_id, addr); #endif @@ -775,7 +761,7 @@ 0)) { #ifdef DEBUG printk - ("i2c-proc.o: found normal isa_range entry for adapter %d, " + (KERN_DEBUG "i2c-proc.o: found normal isa_range entry for adapter %d, " "addr %04x", adapter_id, addr); #endif found = 1; @@ -789,7 +775,7 @@ found = 1; #ifdef DEBUG printk - ("i2c-proc.o: found normal i2c entry for adapter %d, " + (KERN_DEBUG "i2c-proc.o: found normal i2c entry for adapter %d, " "addr %02x", adapter_id, addr); #endif } @@ -805,7 +791,7 @@ { #ifdef DEBUG printk - ("i2c-proc.o: found normal i2c_range entry for adapter %d, " + (KERN_DEBUG "i2c-proc.o: found normal i2c_range entry for adapter %d, " "addr %04x\n", adapter_id, addr); #endif found = 1; @@ -822,7 +808,7 @@ && (addr == address_data->probe[i + 1])) { #ifdef DEBUG printk - ("i2c-proc.o: found probe parameter for adapter %d, " + (KERN_DEBUG "i2c-proc.o: found probe parameter for adapter %d, " "addr %04x\n", adapter_id, addr); #endif found = 1; @@ -841,7 +827,7 @@ found = 1; #ifdef DEBUG printk - ("i2c-proc.o: found probe_range parameter for adapter %d, " + (KERN_DEBUG "i2c-proc.o: found probe_range parameter for adapter %d, " "addr %04x\n", adapter_id, addr); #endif } @@ -862,17 +848,15 @@ int __init sensors_init(void) { - printk("i2c-proc.o version %s (%s)\n", LM_VERSION, LM_DATE); + printk(KERN_INFO "i2c-proc.o version %s (%s)\n", I2C_VERSION, I2C_DATE); i2c_initialized = 0; if (! (i2c_proc_header = - register_sysctl_table(i2c_proc, 0))) return -ENOMEM; -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,1)) + register_sysctl_table(i2c_proc, 0))) { + printk(KERN_ERR "i2c-proc.o: error: sysctl interface not supported by kernel!\n"); + return -EPERM; + } i2c_proc_header->ctl_table->child->de->owner = THIS_MODULE; -#else - i2c_proc_header->ctl_table->child->de->fill_inode = - &i2c_fill_inode; -#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,1)) */ i2c_initialized++; return 0; } @@ -907,4 +891,5 @@ { return i2c_cleanup(); } + #endif /* MODULE */ --- linux/include/linux/i2c-proc.h.orig 2001-10-11 11:05:47.000000000 -0400 +++ linux/include/linux/i2c-proc.h 2002-07-23 01:45:21.000000000 -0400 @@ -1,6 +1,7 @@ /* - sensors.h - Part of lm_sensors, Linux kernel modules for hardware - monitoring + i2c-proc.h - Part of the i2c package + was originally sensors.h - Part of lm_sensors, Linux kernel modules + for hardware monitoring Copyright (c) 1998, 1999 Frodo Looijaard This program is free software; you can redistribute it and/or modify --- linux/include/linux/i2c.h.orig 2001-10-11 11:05:47.000000000 -0400 +++ linux/include/linux/i2c.h 2002-08-13 00:21:05.000000000 -0400 @@ -23,13 +23,13 @@ /* With some changes from Kyösti Mälkki and Frodo Looijaard */ -/* $Id: i2c.h,v 1.46 2001/08/31 00:04:07 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 "20010830" -#define I2C_VERSION "2.6.1" +#define I2C_DATE "20020719" +#define I2C_VERSION "2.6.4" #include /* id values of adapters et. al. */ #include @@ -48,11 +48,8 @@ #endif #include /* for 2.2.xx */ -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,0,25) #include -#else #include -#endif #include /* --- General options ------------------------------------------------ */ @@ -123,6 +120,8 @@ extern s32 i2c_smbus_write_block_data(struct i2c_client * client, u8 command, u8 length, u8 *values); +extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client, + u8 command, u8 *values); extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client, u8 command, u8 length, u8 *values); @@ -226,10 +225,6 @@ u32 (*functionality) (struct i2c_adapter *); }; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,29) -struct proc_dir_entry; -#endif - /* * i2c_adapter is the structure used to identify a physical i2c bus along * with the access algorithms necessary to access it. @@ -267,9 +262,6 @@ #ifdef CONFIG_PROC_FS /* No need to set this when you initialize the adapter */ int inode; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,29) - struct proc_dir_entry *proc_entry; -#endif #endif /* def CONFIG_PROC_FS */ }; @@ -281,6 +273,9 @@ #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 @@ -396,6 +391,12 @@ #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 @@ -406,8 +407,12 @@ #define I2C_FUNC_SMBUS_PROC_CALL 0x00800000 #define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000 #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 -#define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 /* New I2C-like block */ -#define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 /* transfer */ +#define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 /* I2C-like block xfer */ +#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 @@ -419,21 +424,40 @@ I2C_FUNC_SMBUS_WRITE_BLOCK_DATA #define I2C_FUNC_SMBUS_I2C_BLOCK I2C_FUNC_SMBUS_READ_I2C_BLOCK | \ 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 | \ I2C_FUNC_SMBUS_BYTE_DATA | \ I2C_FUNC_SMBUS_WORD_DATA | \ I2C_FUNC_SMBUS_PROC_CALL | \ - I2C_FUNC_SMBUS_WRITE_BLOCK_DATA + I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \ + 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 */ @@ -449,6 +473,11 @@ #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: @@ -474,6 +503,7 @@ #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