| /* |
| * 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/pci.h> |
| #include <linux/device.h> |
| #include <linux/mutex.h> |
| #include <asm/system.h> |
| #include <asm/irq.h> |
| |
| #define IN_CARD_SERVICES |
| #include <pcmcia/cs_types.h> |
| #include <pcmcia/ss.h> |
| #include <pcmcia/cs.h> |
| #include <pcmcia/bulkmem.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, char *buf, loff_t off, size_t count) |
| { |
| unsigned int size = 0x200; |
| |
| if (off >= size) |
| count = 0; |
| else { |
| struct pcmcia_socket *s; |
| cisinfo_t cisinfo; |
| |
| 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, &cisinfo)) |
| return -EIO; |
| if (!cisinfo.Chains) |
| return -ENODATA; |
| |
| count = pccard_extract_cis(s, buf, off, count); |
| } |
| |
| return (count); |
| } |
| |
| static ssize_t pccard_store_cis(struct kobject *kobj, char *buf, loff_t off, size_t count) |
| { |
| struct pcmcia_socket *s = to_socket(container_of(kobj, struct device, kobj)); |
| cisdump_t *cis; |
| int error; |
| |
| if (off) |
| return -EINVAL; |
| |
| if (count >= 0x200) |
| return -EINVAL; |
| |
| if (!(s->state & SOCKET_PRESENT)) |
| return -ENODEV; |
| |
| cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL); |
| if (!cis) |
| return -ENOMEM; |
| |
| cis->Length = count + 1; |
| memcpy(cis->Data, buf, count); |
| |
| error = pcmcia_replace_cis(s, cis); |
| kfree(cis); |
| 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 device_attribute *pccard_socket_attributes[] = { |
| &dev_attr_card_type, |
| &dev_attr_card_voltage, |
| &dev_attr_card_vpp, |
| &dev_attr_card_vcc, |
| &dev_attr_card_insert, |
| &dev_attr_card_pm_state, |
| &dev_attr_card_eject, |
| &dev_attr_card_irq_mask, |
| &dev_attr_available_resources_setup_done, |
| NULL, |
| }; |
| |
| static struct bin_attribute pccard_cis_attr = { |
| .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR, .owner = THIS_MODULE}, |
| .size = 0x200, |
| .read = pccard_show_cis, |
| .write = pccard_store_cis, |
| }; |
| |
| static int __devinit pccard_sysfs_add_socket(struct device *dev, |
| struct class_interface *class_intf) |
| { |
| struct device_attribute **attr; |
| int ret = 0; |
| |
| for (attr = pccard_socket_attributes; *attr; attr++) { |
| ret = device_create_file(dev, *attr); |
| if (ret) |
| break; |
| } |
| if (!ret) |
| ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); |
| |
| return ret; |
| } |
| |
| static void __devexit pccard_sysfs_remove_socket(struct device *dev, |
| struct class_interface *class_intf) |
| { |
| struct device_attribute **attr; |
| |
| sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); |
| for (attr = pccard_socket_attributes; *attr; attr++) |
| device_remove_file(dev, *attr); |
| } |
| |
| struct class_interface pccard_sysfs_interface = { |
| .class = &pcmcia_socket_class, |
| .add_dev = &pccard_sysfs_add_socket, |
| .remove_dev = __devexit_p(&pccard_sysfs_remove_socket), |
| }; |