1656d98b0SRoman Kagan /* ATM driver model support. */ 2656d98b0SRoman Kagan 3656d98b0SRoman Kagan #include <linux/kernel.h> 4656d98b0SRoman Kagan #include <linux/init.h> 5656d98b0SRoman Kagan #include <linux/kobject.h> 6656d98b0SRoman Kagan #include <linux/atmdev.h> 7656d98b0SRoman Kagan #include "common.h" 8656d98b0SRoman Kagan #include "resources.h" 9656d98b0SRoman Kagan 10656d98b0SRoman Kagan #define to_atm_dev(cldev) container_of(cldev, struct atm_dev, class_dev) 11656d98b0SRoman Kagan 12656d98b0SRoman Kagan static ssize_t show_type(struct class_device *cdev, char *buf) 13656d98b0SRoman Kagan { 14656d98b0SRoman Kagan struct atm_dev *adev = to_atm_dev(cdev); 15656d98b0SRoman Kagan return sprintf(buf, "%s\n", adev->type); 16656d98b0SRoman Kagan } 17656d98b0SRoman Kagan 18656d98b0SRoman Kagan static ssize_t show_address(struct class_device *cdev, char *buf) 19656d98b0SRoman Kagan { 20656d98b0SRoman Kagan char *pos = buf; 21656d98b0SRoman Kagan struct atm_dev *adev = to_atm_dev(cdev); 22656d98b0SRoman Kagan int i; 23656d98b0SRoman Kagan 24656d98b0SRoman Kagan for (i = 0; i < (ESI_LEN - 1); i++) 25656d98b0SRoman Kagan pos += sprintf(pos, "%02x:", adev->esi[i]); 26656d98b0SRoman Kagan pos += sprintf(pos, "%02x\n", adev->esi[i]); 27656d98b0SRoman Kagan 28656d98b0SRoman Kagan return pos - buf; 29656d98b0SRoman Kagan } 30656d98b0SRoman Kagan 31656d98b0SRoman Kagan static ssize_t show_atmaddress(struct class_device *cdev, char *buf) 32656d98b0SRoman Kagan { 33656d98b0SRoman Kagan unsigned long flags; 34656d98b0SRoman Kagan char *pos = buf; 35656d98b0SRoman Kagan struct atm_dev *adev = to_atm_dev(cdev); 36656d98b0SRoman Kagan struct atm_dev_addr *aaddr; 37656d98b0SRoman Kagan int bin[] = { 1, 2, 10, 6, 1 }, *fmt = bin; 38656d98b0SRoman Kagan int i, j; 39656d98b0SRoman Kagan 40656d98b0SRoman Kagan spin_lock_irqsave(&adev->lock, flags); 41656d98b0SRoman Kagan list_for_each_entry(aaddr, &adev->local, entry) { 42656d98b0SRoman Kagan for(i = 0, j = 0; i < ATM_ESA_LEN; ++i, ++j) { 43656d98b0SRoman Kagan if (j == *fmt) { 44656d98b0SRoman Kagan pos += sprintf(pos, "."); 45656d98b0SRoman Kagan ++fmt; 46656d98b0SRoman Kagan j = 0; 47656d98b0SRoman Kagan } 48656d98b0SRoman Kagan pos += sprintf(pos, "%02x", aaddr->addr.sas_addr.prv[i]); 49656d98b0SRoman Kagan } 50656d98b0SRoman Kagan pos += sprintf(pos, "\n"); 51656d98b0SRoman Kagan } 52656d98b0SRoman Kagan spin_unlock_irqrestore(&adev->lock, flags); 53656d98b0SRoman Kagan 54656d98b0SRoman Kagan return pos - buf; 55656d98b0SRoman Kagan } 56656d98b0SRoman Kagan 57656d98b0SRoman Kagan static ssize_t show_carrier(struct class_device *cdev, char *buf) 58656d98b0SRoman Kagan { 59656d98b0SRoman Kagan char *pos = buf; 60656d98b0SRoman Kagan struct atm_dev *adev = to_atm_dev(cdev); 61656d98b0SRoman Kagan 62656d98b0SRoman Kagan pos += sprintf(pos, "%d\n", 63656d98b0SRoman Kagan adev->signal == ATM_PHY_SIG_LOST ? 0 : 1); 64656d98b0SRoman Kagan 65656d98b0SRoman Kagan return pos - buf; 66656d98b0SRoman Kagan } 67656d98b0SRoman Kagan 68656d98b0SRoman Kagan static ssize_t show_link_rate(struct class_device *cdev, char *buf) 69656d98b0SRoman Kagan { 70656d98b0SRoman Kagan char *pos = buf; 71656d98b0SRoman Kagan struct atm_dev *adev = to_atm_dev(cdev); 72656d98b0SRoman Kagan int link_rate; 73656d98b0SRoman Kagan 74656d98b0SRoman Kagan /* show the link rate, not the data rate */ 75656d98b0SRoman Kagan switch (adev->link_rate) { 76656d98b0SRoman Kagan case ATM_OC3_PCR: 77656d98b0SRoman Kagan link_rate = 155520000; 78656d98b0SRoman Kagan break; 79656d98b0SRoman Kagan case ATM_OC12_PCR: 80656d98b0SRoman Kagan link_rate = 622080000; 81656d98b0SRoman Kagan break; 82656d98b0SRoman Kagan case ATM_25_PCR: 83656d98b0SRoman Kagan link_rate = 25600000; 84656d98b0SRoman Kagan break; 85656d98b0SRoman Kagan default: 86656d98b0SRoman Kagan link_rate = adev->link_rate * 8 * 53; 87656d98b0SRoman Kagan } 88656d98b0SRoman Kagan pos += sprintf(pos, "%d\n", link_rate); 89656d98b0SRoman Kagan 90656d98b0SRoman Kagan return pos - buf; 91656d98b0SRoman Kagan } 92656d98b0SRoman Kagan 93656d98b0SRoman Kagan static CLASS_DEVICE_ATTR(address, S_IRUGO, show_address, NULL); 94656d98b0SRoman Kagan static CLASS_DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL); 95656d98b0SRoman Kagan static CLASS_DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL); 96656d98b0SRoman Kagan static CLASS_DEVICE_ATTR(type, S_IRUGO, show_type, NULL); 97656d98b0SRoman Kagan static CLASS_DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL); 98656d98b0SRoman Kagan 99656d98b0SRoman Kagan static struct class_device_attribute *atm_attrs[] = { 100656d98b0SRoman Kagan &class_device_attr_atmaddress, 101656d98b0SRoman Kagan &class_device_attr_address, 102656d98b0SRoman Kagan &class_device_attr_carrier, 103656d98b0SRoman Kagan &class_device_attr_type, 104656d98b0SRoman Kagan &class_device_attr_link_rate, 105656d98b0SRoman Kagan NULL 106656d98b0SRoman Kagan }; 107656d98b0SRoman Kagan 1087eff2e7aSKay Sievers static int atm_uevent(struct class_device *cdev, struct kobj_uevent_env *env) 109656d98b0SRoman Kagan { 110656d98b0SRoman Kagan struct atm_dev *adev; 111656d98b0SRoman Kagan 112656d98b0SRoman Kagan if (!cdev) 113656d98b0SRoman Kagan return -ENODEV; 114656d98b0SRoman Kagan 115656d98b0SRoman Kagan adev = to_atm_dev(cdev); 116656d98b0SRoman Kagan if (!adev) 117656d98b0SRoman Kagan return -ENODEV; 118656d98b0SRoman Kagan 1197eff2e7aSKay Sievers if (add_uevent_var(env, "NAME=%s%d", adev->type, adev->number)) 120656d98b0SRoman Kagan return -ENOMEM; 121656d98b0SRoman Kagan 122656d98b0SRoman Kagan return 0; 123656d98b0SRoman Kagan } 124656d98b0SRoman Kagan 125656d98b0SRoman Kagan static void atm_release(struct class_device *cdev) 126656d98b0SRoman Kagan { 127656d98b0SRoman Kagan struct atm_dev *adev = to_atm_dev(cdev); 128656d98b0SRoman Kagan 129656d98b0SRoman Kagan kfree(adev); 130656d98b0SRoman Kagan } 131656d98b0SRoman Kagan 132656d98b0SRoman Kagan static struct class atm_class = { 133656d98b0SRoman Kagan .name = "atm", 134656d98b0SRoman Kagan .release = atm_release, 135656d98b0SRoman Kagan .uevent = atm_uevent, 136656d98b0SRoman Kagan }; 137656d98b0SRoman Kagan 138656d98b0SRoman Kagan int atm_register_sysfs(struct atm_dev *adev) 139656d98b0SRoman Kagan { 140656d98b0SRoman Kagan struct class_device *cdev = &adev->class_dev; 14197f80bc6SJeff Garzik int i, j, err; 142656d98b0SRoman Kagan 143656d98b0SRoman Kagan cdev->class = &atm_class; 144656d98b0SRoman Kagan class_set_devdata(cdev, adev); 145656d98b0SRoman Kagan 146656d98b0SRoman Kagan snprintf(cdev->class_id, BUS_ID_SIZE, "%s%d", adev->type, adev->number); 147656d98b0SRoman Kagan err = class_device_register(cdev); 148656d98b0SRoman Kagan if (err < 0) 149656d98b0SRoman Kagan return err; 150656d98b0SRoman Kagan 15197f80bc6SJeff Garzik for (i = 0; atm_attrs[i]; i++) { 15297f80bc6SJeff Garzik err = class_device_create_file(cdev, atm_attrs[i]); 15397f80bc6SJeff Garzik if (err) 15497f80bc6SJeff Garzik goto err_out; 15597f80bc6SJeff Garzik } 156656d98b0SRoman Kagan 157656d98b0SRoman Kagan return 0; 15897f80bc6SJeff Garzik 15997f80bc6SJeff Garzik err_out: 16097f80bc6SJeff Garzik for (j = 0; j < i; j++) 16197f80bc6SJeff Garzik class_device_remove_file(cdev, atm_attrs[j]); 16297f80bc6SJeff Garzik class_device_del(cdev); 16397f80bc6SJeff Garzik return err; 164656d98b0SRoman Kagan } 165656d98b0SRoman Kagan 166656d98b0SRoman Kagan void atm_unregister_sysfs(struct atm_dev *adev) 167656d98b0SRoman Kagan { 168656d98b0SRoman Kagan struct class_device *cdev = &adev->class_dev; 169656d98b0SRoman Kagan 170656d98b0SRoman Kagan class_device_del(cdev); 171656d98b0SRoman Kagan } 172656d98b0SRoman Kagan 173656d98b0SRoman Kagan int __init atm_sysfs_init(void) 174656d98b0SRoman Kagan { 175656d98b0SRoman Kagan return class_register(&atm_class); 176656d98b0SRoman Kagan } 177656d98b0SRoman Kagan 178656d98b0SRoman Kagan void __exit atm_sysfs_exit(void) 179656d98b0SRoman Kagan { 180656d98b0SRoman Kagan class_unregister(&atm_class); 181656d98b0SRoman Kagan } 182