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drivers/pcmcia/socket_sysfs.c
5.78 KB
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/* * 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> |
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#include <linux/string.h> #include <linux/major.h> #include <linux/errno.h> |
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#include <linux/mm.h> #include <linux/interrupt.h> #include <linux/timer.h> #include <linux/ioport.h> #include <linux/delay.h> #include <linux/pm.h> |
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#include <linux/device.h> |
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#include <linux/mutex.h> |
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#include <asm/system.h> #include <asm/irq.h> |
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#include <pcmcia/ss.h> |
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#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) |
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static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); if (!(s->state & SOCKET_PRESENT)) return -ENODEV; |
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if (s->state & SOCKET_CARDBUS) |
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return sprintf(buf, "32-bit "); |
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return sprintf(buf, "16-bit "); |
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} |
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static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL); |
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static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr, char *buf) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); if (!(s->state & SOCKET_PRESENT)) return -ENODEV; |
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if (s->socket.Vcc) return sprintf(buf, "%d.%dV ", s->socket.Vcc / 10, s->socket.Vcc % 10); return sprintf(buf, "X.XV "); |
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} |
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static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL); |
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static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr, char *buf) |
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{ struct pcmcia_socket *s = to_socket(dev); if (!(s->state & SOCKET_PRESENT)) return -ENODEV; return sprintf(buf, "%d.%dV ", s->socket.Vpp / 10, s->socket.Vpp % 10); } |
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static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL); |
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static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr, char *buf) |
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{ struct pcmcia_socket *s = to_socket(dev); if (!(s->state & SOCKET_PRESENT)) return -ENODEV; return sprintf(buf, "%d.%dV ", s->socket.Vcc / 10, s->socket.Vcc % 10); } |
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static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL); |
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static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); if (!count) return -EINVAL; |
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pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT); |
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return count; |
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} |
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static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert); |
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static ssize_t pccard_show_card_pm_state(struct device *dev, struct device_attribute *attr, char *buf) |
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{ struct pcmcia_socket *s = to_socket(dev); return sprintf(buf, "%s ", s->state & SOCKET_SUSPEND ? "off" : "on"); } |
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static ssize_t pccard_store_card_pm_state(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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ssize_t ret = count; |
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if (!count) return -EINVAL; |
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if (!strncmp(buf, "off", 3)) pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND); else { if (!strncmp(buf, "on", 2)) pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME); else ret = -EINVAL; } |
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return ret; |
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} |
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static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state); |
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static ssize_t pccard_store_eject(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); if (!count) return -EINVAL; |
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pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT); |
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return count; |
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} |
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static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject); |
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static ssize_t pccard_show_irq_mask(struct device *dev, struct device_attribute *attr, char *buf) |
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{ struct pcmcia_socket *s = to_socket(dev); return sprintf(buf, "0x%04x ", s->irq_mask); } |
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static ssize_t pccard_store_irq_mask(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ ssize_t ret; struct pcmcia_socket *s = to_socket(dev); u32 mask; if (!count) return -EINVAL; |
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ret = sscanf(buf, "0x%x ", &mask); |
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if (ret == 1) { |
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mutex_lock(&s->ops_mutex); |
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s->irq_mask &= mask; |
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mutex_unlock(&s->ops_mutex); |
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ret = 0; } return ret ? ret : count; } |
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static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask); |
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static ssize_t pccard_show_resource(struct device *dev, struct device_attribute *attr, char *buf) |
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{ struct pcmcia_socket *s = to_socket(dev); return sprintf(buf, "%s ", s->resource_setup_done ? "yes" : "no"); } |
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static ssize_t pccard_store_resource(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); if (!count) return -EINVAL; |
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mutex_lock(&s->ops_mutex); |
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if (!s->resource_setup_done) |
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s->resource_setup_done = 1; |
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mutex_unlock(&s->ops_mutex); |
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pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); |
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return count; } |
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static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource); |
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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, |
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NULL, }; |
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static const struct attribute_group socket_attrs = { .attrs = pccard_socket_attributes, }; |
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int pccard_sysfs_add_socket(struct device *dev) |
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{ |
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return sysfs_create_group(&dev->kobj, &socket_attrs); |
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} |
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void pccard_sysfs_remove_socket(struct device *dev) |
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{ |
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sysfs_remove_group(&dev->kobj, &socket_attrs); |
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} |