diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hwmon/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/hwmon/sis5595.c | 323 |
2 files changed, 177 insertions, 149 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index b432584..398a52e 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -431,8 +431,7 @@ config SENSORS_PC87427 config SENSORS_SIS5595 tristate "Silicon Integrated Systems Corp. SiS5595" - depends on I2C && PCI && EXPERIMENTAL - select I2C_ISA + depends on PCI help If you say yes here you get support for the integrated sensors in SiS5595 South Bridges. diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c index 3f40026..c56bae3 100644 --- a/drivers/hwmon/sis5595.c +++ b/drivers/hwmon/sis5595.c @@ -54,8 +54,7 @@ #include <linux/slab.h> #include <linux/ioport.h> #include <linux/pci.h> -#include <linux/i2c.h> -#include <linux/i2c-isa.h> +#include <linux/platform_device.h> #include <linux/hwmon.h> #include <linux/err.h> #include <linux/init.h> @@ -72,10 +71,7 @@ module_param(force_addr, ushort, 0); MODULE_PARM_DESC(force_addr, "Initialize the base address of the sensors"); -/* Device address - Note that we can't determine the ISA address until we have initialized - our module */ -static unsigned short address; +static struct platform_device *pdev; /* Many SIS5595 constants specified below */ @@ -165,7 +161,8 @@ static inline u8 DIV_TO_REG(int val) /* For each registered chip, we need to keep some data in memory. The structure is dynamically allocated. */ struct sis5595_data { - struct i2c_client client; + unsigned short addr; + const char *name; struct class_device *class_dev; struct mutex lock; @@ -189,21 +186,21 @@ struct sis5595_data { static struct pci_dev *s_bridge; /* pointer to the (only) sis5595 */ -static int sis5595_detect(struct i2c_adapter *adapter); -static int sis5595_detach_client(struct i2c_client *client); +static int sis5595_probe(struct platform_device *pdev); +static int sis5595_remove(struct platform_device *pdev); -static int sis5595_read_value(struct i2c_client *client, u8 reg); -static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value); +static int sis5595_read_value(struct sis5595_data *data, u8 reg); +static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value); static struct sis5595_data *sis5595_update_device(struct device *dev); -static void sis5595_init_client(struct i2c_client *client); +static void sis5595_init_device(struct sis5595_data *data); -static struct i2c_driver sis5595_driver = { +static struct platform_driver sis5595_driver = { .driver = { .owner = THIS_MODULE, .name = "sis5595", }, - .attach_adapter = sis5595_detect, - .detach_client = sis5595_detach_client, + .probe = sis5595_probe, + .remove = __devexit_p(sis5595_remove), }; /* 4 Voltages */ @@ -228,13 +225,12 @@ static ssize_t show_in_max(struct device *dev, char *buf, int nr) static ssize_t set_in_min(struct device *dev, const char *buf, size_t count, int nr) { - struct i2c_client *client = to_i2c_client(dev); - struct sis5595_data *data = i2c_get_clientdata(client); + struct sis5595_data *data = dev_get_drvdata(dev); unsigned long val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); data->in_min[nr] = IN_TO_REG(val); - sis5595_write_value(client, SIS5595_REG_IN_MIN(nr), data->in_min[nr]); + sis5595_write_value(data, SIS5595_REG_IN_MIN(nr), data->in_min[nr]); mutex_unlock(&data->update_lock); return count; } @@ -242,13 +238,12 @@ static ssize_t set_in_min(struct device *dev, const char *buf, static ssize_t set_in_max(struct device *dev, const char *buf, size_t count, int nr) { - struct i2c_client *client = to_i2c_client(dev); - struct sis5595_data *data = i2c_get_clientdata(client); + struct sis5595_data *data = dev_get_drvdata(dev); unsigned long val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); data->in_max[nr] = IN_TO_REG(val); - sis5595_write_value(client, SIS5595_REG_IN_MAX(nr), data->in_max[nr]); + sis5595_write_value(data, SIS5595_REG_IN_MAX(nr), data->in_max[nr]); mutex_unlock(&data->update_lock); return count; } @@ -307,13 +302,12 @@ static ssize_t show_temp_over(struct device *dev, struct device_attribute *attr, static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct sis5595_data *data = i2c_get_clientdata(client); + struct sis5595_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->temp_over = TEMP_TO_REG(val); - sis5595_write_value(client, SIS5595_REG_TEMP_OVER, data->temp_over); + sis5595_write_value(data, SIS5595_REG_TEMP_OVER, data->temp_over); mutex_unlock(&data->update_lock); return count; } @@ -326,13 +320,12 @@ static ssize_t show_temp_hyst(struct device *dev, struct device_attribute *attr, static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct sis5595_data *data = i2c_get_clientdata(client); + struct sis5595_data *data = dev_get_drvdata(dev); long val = simple_strtol(buf, NULL, 10); mutex_lock(&data->update_lock); data->temp_hyst = TEMP_TO_REG(val); - sis5595_write_value(client, SIS5595_REG_TEMP_HYST, data->temp_hyst); + sis5595_write_value(data, SIS5595_REG_TEMP_HYST, data->temp_hyst); mutex_unlock(&data->update_lock); return count; } @@ -361,13 +354,12 @@ static ssize_t show_fan_min(struct device *dev, char *buf, int nr) static ssize_t set_fan_min(struct device *dev, const char *buf, size_t count, int nr) { - struct i2c_client *client = to_i2c_client(dev); - struct sis5595_data *data = i2c_get_clientdata(client); + struct sis5595_data *data = dev_get_drvdata(dev); unsigned long val = simple_strtoul(buf, NULL, 10); mutex_lock(&data->update_lock); data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); - sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); + sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); mutex_unlock(&data->update_lock); return count; } @@ -385,8 +377,7 @@ static ssize_t show_fan_div(struct device *dev, char *buf, int nr) static ssize_t set_fan_div(struct device *dev, const char *buf, size_t count, int nr) { - struct i2c_client *client = to_i2c_client(dev); - struct sis5595_data *data = i2c_get_clientdata(client); + struct sis5595_data *data = dev_get_drvdata(dev); unsigned long min; unsigned long val = simple_strtoul(buf, NULL, 10); int reg; @@ -394,7 +385,7 @@ static ssize_t set_fan_div(struct device *dev, const char *buf, mutex_lock(&data->update_lock); min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr])); - reg = sis5595_read_value(client, SIS5595_REG_FANDIV); + reg = sis5595_read_value(data, SIS5595_REG_FANDIV); switch (val) { case 1: data->fan_div[nr] = 0; break; @@ -402,7 +393,7 @@ static ssize_t set_fan_div(struct device *dev, const char *buf, case 4: data->fan_div[nr] = 2; break; case 8: data->fan_div[nr] = 3; break; default: - dev_err(&client->dev, "fan_div value %ld not " + dev_err(dev, "fan_div value %ld not " "supported. Choose one of 1, 2, 4 or 8!\n", val); mutex_unlock(&data->update_lock); return -EINVAL; @@ -416,10 +407,10 @@ static ssize_t set_fan_div(struct device *dev, const char *buf, reg = (reg & 0x3f) | (data->fan_div[nr] << 6); break; } - sis5595_write_value(client, SIS5595_REG_FANDIV, reg); + sis5595_write_value(data, SIS5595_REG_FANDIV, reg); data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); - sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); + sis5595_write_value(data, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]); mutex_unlock(&data->update_lock); return count; } @@ -473,6 +464,14 @@ static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, ch } static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); +static ssize_t show_name(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct sis5595_data *data = dev_get_drvdata(dev); + return sprintf(buf, "%s\n", data->name); +} +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); + static struct attribute *sis5595_attributes[] = { &dev_attr_in0_input.attr, &dev_attr_in0_min.attr, @@ -495,6 +494,7 @@ static struct attribute *sis5595_attributes[] = { &dev_attr_fan2_div.attr, &dev_attr_alarms.attr, + &dev_attr_name.attr, NULL }; @@ -518,65 +518,32 @@ static const struct attribute_group sis5595_group_opt = { }; /* This is called when the module is loaded */ -static int sis5595_detect(struct i2c_adapter *adapter) +static int __devinit sis5595_probe(struct platform_device *pdev) { int err = 0; int i; - struct i2c_client *new_client; struct sis5595_data *data; + struct resource *res; char val; - u16 a; - if (force_addr) - address = force_addr & ~(SIS5595_EXTENT - 1); /* Reserve the ISA region */ - if (!request_region(address, SIS5595_EXTENT, + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!request_region(res->start, SIS5595_EXTENT, sis5595_driver.driver.name)) { err = -EBUSY; goto exit; } - if (force_addr) { - dev_warn(&adapter->dev, "forcing ISA address 0x%04X\n", address); - if (PCIBIOS_SUCCESSFUL != - pci_write_config_word(s_bridge, SIS5595_BASE_REG, address)) - goto exit_release; - if (PCIBIOS_SUCCESSFUL != - pci_read_config_word(s_bridge, SIS5595_BASE_REG, &a)) - goto exit_release; - if ((a & ~(SIS5595_EXTENT - 1)) != address) - /* doesn't work for some chips? */ - goto exit_release; - } - - if (PCIBIOS_SUCCESSFUL != - pci_read_config_byte(s_bridge, SIS5595_ENABLE_REG, &val)) { - goto exit_release; - } - if ((val & 0x80) == 0) { - if (PCIBIOS_SUCCESSFUL != - pci_write_config_byte(s_bridge, SIS5595_ENABLE_REG, - val | 0x80)) - goto exit_release; - if (PCIBIOS_SUCCESSFUL != - pci_read_config_byte(s_bridge, SIS5595_ENABLE_REG, &val)) - goto exit_release; - if ((val & 0x80) == 0) - /* doesn't work for some chips! */ - goto exit_release; - } if (!(data = kzalloc(sizeof(struct sis5595_data), GFP_KERNEL))) { err = -ENOMEM; goto exit_release; } - new_client = &data->client; - new_client->addr = address; mutex_init(&data->lock); - i2c_set_clientdata(new_client, data); - new_client->adapter = adapter; - new_client->driver = &sis5595_driver; - new_client->flags = 0; + mutex_init(&data->update_lock); + data->addr = res->start; + data->name = "sis5595"; + platform_set_drvdata(pdev, data); /* Check revision and pin registers to determine whether 4 or 5 voltages */ pci_read_config_byte(s_bridge, SIS5595_REVISION_REG, &(data->revision)); @@ -589,47 +556,37 @@ static int sis5595_detect(struct i2c_adapter *adapter) data->maxins = 4; } - /* Fill in the remaining client fields and put it into the global list */ - strlcpy(new_client->name, "sis5595", I2C_NAME_SIZE); - - data->valid = 0; - mutex_init(&data->update_lock); - - /* Tell the I2C layer a new client has arrived */ - if ((err = i2c_attach_client(new_client))) - goto exit_free; - /* Initialize the SIS5595 chip */ - sis5595_init_client(new_client); + sis5595_init_device(data); /* A few vars need to be filled upon startup */ for (i = 0; i < 2; i++) { - data->fan_min[i] = sis5595_read_value(new_client, + data->fan_min[i] = sis5595_read_value(data, SIS5595_REG_FAN_MIN(i)); } /* Register sysfs hooks */ - if ((err = sysfs_create_group(&new_client->dev.kobj, &sis5595_group))) - goto exit_detach; + if ((err = sysfs_create_group(&pdev->dev.kobj, &sis5595_group))) + goto exit_free; if (data->maxins == 4) { - if ((err = device_create_file(&new_client->dev, + if ((err = device_create_file(&pdev->dev, &dev_attr_in4_input)) - || (err = device_create_file(&new_client->dev, + || (err = device_create_file(&pdev->dev, &dev_attr_in4_min)) - || (err = device_create_file(&new_client->dev, + || (err = device_create_file(&pdev->dev, &dev_attr_in4_max))) goto exit_remove_files; } else { - if ((err = device_create_file(&new_client->dev, + if ((err = device_create_file(&pdev->dev, &dev_attr_temp1_input)) - || (err = device_create_file(&new_client->dev, + || (err = device_create_file(&pdev->dev, &dev_attr_temp1_max)) - || (err = device_create_file(&new_client->dev, + || (err = device_create_file(&pdev->dev, &dev_attr_temp1_max_hyst))) goto exit_remove_files; } - data->class_dev = hwmon_device_register(&new_client->dev); + data->class_dev = hwmon_device_register(&pdev->dev); if (IS_ERR(data->class_dev)) { err = PTR_ERR(data->class_dev); goto exit_remove_files; @@ -638,32 +595,26 @@ static int sis5595_detect(struct i2c_adapter *adapter) return 0; exit_remove_files: - sysfs_remove_group(&new_client->dev.kobj, &sis5595_group); - sysfs_remove_group(&new_client->dev.kobj, &sis5595_group_opt); -exit_detach: - i2c_detach_client(new_client); + sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); + sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_opt); exit_free: kfree(data); exit_release: - release_region(address, SIS5595_EXTENT); + release_region(res->start, SIS5595_EXTENT); exit: return err; } -static int sis5595_detach_client(struct i2c_client *client) +static int __devexit sis5595_remove(struct platform_device *pdev) { - struct sis5595_data *data = i2c_get_clientdata(client); - int err; + struct sis5595_data *data = platform_get_drvdata(pdev); hwmon_device_unregister(data->class_dev); - sysfs_remove_group(&client->dev.kobj, &sis5595_group); - sysfs_remove_group(&client->dev.kobj, &sis5595_group_opt); - - if ((err = i2c_detach_client(client))) - return err; - - release_region(client->addr, SIS5595_EXTENT); + sysfs_remove_group(&pdev->dev.kobj, &sis5595_group); + sysfs_remove_group(&pdev->dev.kobj, &sis5595_group_opt); + release_region(data->addr, SIS5595_EXTENT); + platform_set_drvdata(pdev, NULL); kfree(data); return 0; @@ -671,41 +622,37 @@ static int sis5595_detach_client(struct i2c_client *client) /* ISA access must be locked explicitly. */ -static int sis5595_read_value(struct i2c_client *client, u8 reg) +static int sis5595_read_value(struct sis5595_data *data, u8 reg) { int res; - struct sis5595_data *data = i2c_get_clientdata(client); mutex_lock(&data->lock); - outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET); - res = inb_p(client->addr + SIS5595_DATA_REG_OFFSET); + outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); + res = inb_p(data->addr + SIS5595_DATA_REG_OFFSET); mutex_unlock(&data->lock); return res; } -static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value) +static void sis5595_write_value(struct sis5595_data *data, u8 reg, u8 value) { - struct sis5595_data *data = i2c_get_clientdata(client); mutex_lock(&data->lock); - outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET); - outb_p(value, client->addr + SIS5595_DATA_REG_OFFSET); + outb_p(reg, data->addr + SIS5595_ADDR_REG_OFFSET); + outb_p(value, data->addr + SIS5595_DATA_REG_OFFSET); mutex_unlock(&data->lock); - return 0; } /* Called when we have found a new SIS5595. */ -static void sis5595_init_client(struct i2c_client *client) +static void __devinit sis5595_init_device(struct sis5595_data *data) { - u8 config = sis5595_read_value(client, SIS5595_REG_CONFIG); + u8 config = sis5595_read_value(data, SIS5595_REG_CONFIG); if (!(config & 0x01)) - sis5595_write_value(client, SIS5595_REG_CONFIG, + sis5595_write_value(data, SIS5595_REG_CONFIG, (config & 0xf7) | 0x01); } static struct sis5595_data *sis5595_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct sis5595_data *data = i2c_get_clientdata(client); + struct sis5595_data *data = dev_get_drvdata(dev); int i; mutex_lock(&data->update_lock); @@ -715,35 +662,35 @@ static struct sis5595_data *sis5595_update_device(struct device *dev) for (i = 0; i <= data->maxins; i++) { data->in[i] = - sis5595_read_value(client, SIS5595_REG_IN(i)); + sis5595_read_value(data, SIS5595_REG_IN(i)); data->in_min[i] = - sis5595_read_value(client, + sis5595_read_value(data, SIS5595_REG_IN_MIN(i)); data->in_max[i] = - sis5595_read_value(client, + sis5595_read_value(data, SIS5595_REG_IN_MAX(i)); } for (i = 0; i < 2; i++) { data->fan[i] = - sis5595_read_value(client, SIS5595_REG_FAN(i)); + sis5595_read_value(data, SIS5595_REG_FAN(i)); data->fan_min[i] = - sis5595_read_value(client, + sis5595_read_value(data, SIS5595_REG_FAN_MIN(i)); } if (data->maxins == 3) { data->temp = - sis5595_read_value(client, SIS5595_REG_TEMP); + sis5595_read_value(data, SIS5595_REG_TEMP); data->temp_over = - sis5595_read_value(client, SIS5595_REG_TEMP_OVER); + sis5595_read_value(data, SIS5595_REG_TEMP_OVER); data->temp_hyst = - sis5595_read_value(client, SIS5595_REG_TEMP_HYST); + sis5595_read_value(data, SIS5595_REG_TEMP_HYST); } - i = sis5595_read_value(client, SIS5595_REG_FANDIV); + i = sis5595_read_value(data, SIS5595_REG_FANDIV); data->fan_div[0] = (i >> 4) & 0x03; data->fan_div[1] = i >> 6; data->alarms = - sis5595_read_value(client, SIS5595_REG_ALARM1) | - (sis5595_read_value(client, SIS5595_REG_ALARM2) << 8); + sis5595_read_value(data, SIS5595_REG_ALARM1) | + (sis5595_read_value(data, SIS5595_REG_ALARM2) << 8); data->last_updated = jiffies; data->valid = 1; } @@ -774,10 +721,50 @@ static int blacklist[] __devinitdata = { PCI_DEVICE_ID_SI_5598, 0 }; +static int __devinit sis5595_device_add(unsigned short address) +{ + struct resource res = { + .start = address, + .end = address + SIS5595_EXTENT - 1, + .name = "sis5595", + .flags = IORESOURCE_IO, + }; + int err; + + pdev = platform_device_alloc("sis5595", address); + if (!pdev) { + err = -ENOMEM; + printk(KERN_ERR "sis5595: Device allocation failed\n"); + goto exit; + } + + err = platform_device_add_resources(pdev, &res, 1); + if (err) { + printk(KERN_ERR "sis5595: Device resource addition failed " + "(%d)\n", err); + goto exit_device_put; + } + + err = platform_device_add(pdev); + if (err) { + printk(KERN_ERR "sis5595: Device addition failed (%d)\n", + err); + goto exit_device_put; + } + + return 0; + +exit_device_put: + platform_device_put(pdev); +exit: + return err; +} + static int __devinit sis5595_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) { - u16 val; + u16 address; + u8 enable; int *i; for (i = blacklist; *i != 0; i++) { @@ -790,27 +777,68 @@ static int __devinit sis5595_pci_probe(struct pci_dev *dev, } } + force_addr &= ~(SIS5595_EXTENT - 1); + if (force_addr) { + dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", force_addr); + pci_write_config_word(dev, SIS5595_BASE_REG, force_addr); + } + if (PCIBIOS_SUCCESSFUL != - pci_read_config_word(dev, SIS5595_BASE_REG, &val)) + pci_read_config_word(dev, SIS5595_BASE_REG, &address)) { + dev_err(&dev->dev, "Failed to read ISA address\n"); return -ENODEV; + } - address = val & ~(SIS5595_EXTENT - 1); - if (address == 0 && force_addr == 0) { + address &= ~(SIS5595_EXTENT - 1); + if (!address) { dev_err(&dev->dev, "Base address not set - upgrade BIOS or use force_addr=0xaddr\n"); return -ENODEV; } + if (force_addr && address != force_addr) { + /* doesn't work for some chips? */ + dev_err(&dev->dev, "Failed to force ISA address\n"); + return -ENODEV; + } - s_bridge = pci_dev_get(dev); - if (i2c_isa_add_driver(&sis5595_driver)) { - pci_dev_put(s_bridge); - s_bridge = NULL; + if (PCIBIOS_SUCCESSFUL != + pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) { + dev_err(&dev->dev, "Failed to read enable register\n"); + return -ENODEV; + } + if (!(enable & 0x80)) { + if ((PCIBIOS_SUCCESSFUL != + pci_write_config_byte(dev, SIS5595_ENABLE_REG, + enable | 0x80)) + || (PCIBIOS_SUCCESSFUL != + pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) + || (!(enable & 0x80))) { + /* doesn't work for some chips! */ + dev_err(&dev->dev, "Failed to enable HWM device\n"); + return -ENODEV; + } } + if (platform_driver_register(&sis5595_driver)) { + dev_dbg(&dev->dev, "Failed to register sis5595 driver\n"); + goto exit; + } + + s_bridge = pci_dev_get(dev); + /* Sets global pdev as a side effect */ + if (sis5595_device_add(address)) + goto exit_unregister; + /* Always return failure here. This is to allow other drivers to bind * to this pci device. We don't really want to have control over the * pci device, we only wanted to read as few register values from it. */ return -ENODEV; + +exit_unregister: + pci_dev_put(dev); + platform_driver_unregister(&sis5595_driver); +exit: + return -ENODEV; } static struct pci_driver sis5595_pci_driver = { @@ -828,7 +856,8 @@ static void __exit sm_sis5595_exit(void) { pci_unregister_driver(&sis5595_pci_driver); if (s_bridge != NULL) { - i2c_isa_del_driver(&sis5595_driver); + platform_device_unregister(pdev); + platform_driver_unregister(&sis5595_driver); pci_dev_put(s_bridge); s_bridge = NULL; } |
