/* * socket_sysfs.c -- most of socket-related sysfs output * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * (C) 2003 - 2004 Dominik Brodowski */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/string.h> #include <linux/major.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/mm.h> #include <linux/interrupt.h> #include <linux/timer.h> #include <linux/ioport.h> #include <linux/delay.h> #include <linux/pm.h> #include <linux/device.h> #include <linux/mutex.h> #include <asm/system.h> #include <asm/irq.h> #include <pcmcia/cs_types.h> #include <pcmcia/ss.h> #include <pcmcia/cs.h> #include <pcmcia/cistpl.h> #include <pcmcia/cisreg.h> #include <pcmcia/ds.h> #include "cs_internal.h" #define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev) static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr, char *buf) { struct pcmcia_socket *s = to_socket(dev); if (!(s->state & SOCKET_PRESENT)) return -ENODEV; if (s->state & SOCKET_CARDBUS) return sprintf(buf, "32-bit\n"); return sprintf(buf, "16-bit\n"); } static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL); static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr, char *buf) { struct pcmcia_socket *s = to_socket(dev); if (!(s->state & SOCKET_PRESENT)) return -ENODEV; if (s->socket.Vcc) return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10); return sprintf(buf, "X.XV\n"); } static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL); static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr, char *buf) { struct pcmcia_socket *s = to_socket(dev); if (!(s->state & SOCKET_PRESENT)) return -ENODEV; return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10); } static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL); static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr, char *buf) { struct pcmcia_socket *s = to_socket(dev); if (!(s->state & SOCKET_PRESENT)) return -ENODEV; return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10); } static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL); static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { ssize_t ret; struct pcmcia_socket *s = to_socket(dev); if (!count) return -EINVAL; ret = pcmcia_insert_card(s); return ret ? ret : count; } static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert); static ssize_t pccard_show_card_pm_state(struct device *dev, struct device_attribute *attr, char *buf) { struct pcmcia_socket *s = to_socket(dev); return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on"); } static ssize_t pccard_store_card_pm_state(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { ssize_t ret = -EINVAL; struct pcmcia_socket *s = to_socket(dev); if (!count) return -EINVAL; if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3)) ret = pcmcia_suspend_card(s); else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2)) ret = pcmcia_resume_card(s); return ret ? -ENODEV : count; } static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state); static ssize_t pccard_store_eject(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { ssize_t ret; struct pcmcia_socket *s = to_socket(dev); if (!count) return -EINVAL; ret = pcmcia_eject_card(s); return ret ? ret : count; } static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject); static ssize_t pccard_show_irq_mask(struct device *dev, struct device_attribute *attr, char *buf) { struct pcmcia_socket *s = to_socket(dev); return sprintf(buf, "0x%04x\n", s->irq_mask); } static ssize_t pccard_store_irq_mask(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { ssize_t ret; struct pcmcia_socket *s = to_socket(dev); u32 mask; if (!count) return -EINVAL; ret = sscanf (buf, "0x%x\n", &mask); if (ret == 1) { s->irq_mask &= mask; ret = 0; } return ret ? ret : count; } static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask); static ssize_t pccard_show_resource(struct device *dev, struct device_attribute *attr, char *buf) { struct pcmcia_socket *s = to_socket(dev); return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no"); } static ssize_t pccard_store_resource(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { unsigned long flags; struct pcmcia_socket *s = to_socket(dev); if (!count) return -EINVAL; spin_lock_irqsave(&s->lock, flags); if (!s->resource_setup_done) s->resource_setup_done = 1; spin_unlock_irqrestore(&s->lock, flags); mutex_lock(&s->skt_mutex); if ((s->callback) && (s->state & SOCKET_PRESENT) && !(s->state & SOCKET_CARDBUS)) { if (try_module_get(s->callback->owner)) { s->callback->requery(s, 0); module_put(s->callback->owner); } } mutex_unlock(&s->skt_mutex); return count; } static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource); static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count) { tuple_t tuple; int status, i; loff_t pointer = 0; ssize_t ret = 0; u_char *tuplebuffer; u_char *tempbuffer; tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL); if (!tuplebuffer) return -ENOMEM; tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL); if (!tempbuffer) { ret = -ENOMEM; goto free_tuple; } memset(&tuple, 0, sizeof(tuple_t)); tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON; tuple.DesiredTuple = RETURN_FIRST_TUPLE; tuple.TupleOffset = 0; status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple); while (!status) { tuple.TupleData = tuplebuffer; tuple.TupleDataMax = 255; memset(tuplebuffer, 0, sizeof(u_char) * 255); status = pccard_get_tuple_data(s, &tuple); if (status) break; if (off < (pointer + 2 + tuple.TupleDataLen)) { tempbuffer[0] = tuple.TupleCode & 0xff; tempbuffer[1] = tuple.TupleLink & 0xff; for (i = 0; i < tuple.TupleDataLen; i++) tempbuffer[i + 2] = tuplebuffer[i] & 0xff; for (i = 0; i < (2 + tuple.TupleDataLen); i++) { if (((i + pointer) >= off) && (i + pointer) < (off + count)) { buf[ret] = tempbuffer[i]; ret++; } } } pointer += 2 + tuple.TupleDataLen; if (pointer >= (off + count)) break; if (tuple.TupleCode == CISTPL_END) break; status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple); } kfree(tempbuffer); free_tuple: kfree(tuplebuffer); return (ret); } static ssize_t pccard_show_cis(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { unsigned int size = 0x200; if (off >= size) count = 0; else { struct pcmcia_socket *s; unsigned int chains; if (off + count > size) count = size - off; s = to_socket(container_of(kobj, struct device, kobj)); if (!(s->state & SOCKET_PRESENT)) return -ENODEV; if (pccard_validate_cis(s, BIND_FN_ALL, &chains)) return -EIO; if (!chains) return -ENODATA; count = pccard_extract_cis(s, buf, off, count); } return (count); } static ssize_t pccard_store_cis(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { struct pcmcia_socket *s = to_socket(container_of(kobj, struct device, kobj)); int error; if (off) return -EINVAL; if (count >= CISTPL_MAX_CIS_SIZE) return -EINVAL; if (!(s->state & SOCKET_PRESENT)) return -ENODEV; error = pcmcia_replace_cis(s, buf, count); if (error) return -EIO; mutex_lock(&s->skt_mutex); if ((s->callback) && (s->state & SOCKET_PRESENT) && !(s->state & SOCKET_CARDBUS)) { if (try_module_get(s->callback->owner)) { s->callback->requery(s, 1); module_put(s->callback->owner); } } mutex_unlock(&s->skt_mutex); return count; } static struct attribute *pccard_socket_attributes[] = { &dev_attr_card_type.attr, &dev_attr_card_voltage.attr, &dev_attr_card_vpp.attr, &dev_attr_card_vcc.attr, &dev_attr_card_insert.attr, &dev_attr_card_pm_state.attr, &dev_attr_card_eject.attr, &dev_attr_card_irq_mask.attr, &dev_attr_available_resources_setup_done.attr, NULL, }; static const struct attribute_group socket_attrs = { .attrs = pccard_socket_attributes, }; static struct bin_attribute pccard_cis_attr = { .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR }, .size = 0x200, .read = pccard_show_cis, .write = pccard_store_cis, }; int pccard_sysfs_add_socket(struct device *dev) { int ret = 0; ret = sysfs_create_group(&dev->kobj, &socket_attrs); if (!ret) { ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); if (ret) sysfs_remove_group(&dev->kobj, &socket_attrs); } return ret; } void pccard_sysfs_remove_socket(struct device *dev) { sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); sysfs_remove_group(&dev->kobj, &socket_attrs); }