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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230// SPDX-License-Identifier: GPL-2.0-only/* * socket_sysfs.c -- most of socket-related sysfs output * * (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/string_choices.h>#include <linux/major.h>#include <linux/errno.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/irq.h>
#include <pcmcia/ss.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 sysfs_emit(buf, "32-bit\n"); return sysfs_emit(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 sysfs_emit(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10); return sysfs_emit(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 sysfs_emit(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 sysfs_emit(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){ struct pcmcia_socket *s = to_socket(dev);
if (!count) return -EINVAL;
pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
return 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 sysfs_emit(buf, "%s\n", str_off_on(s->state & SOCKET_SUSPEND));}
static ssize_t pccard_store_card_pm_state(struct device *dev, struct device_attribute *attr, const char *buf, size_t count){ struct pcmcia_socket *s = to_socket(dev); ssize_t ret = count;
if (!count) return -EINVAL;
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; }
return ret;}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){ struct pcmcia_socket *s = to_socket(dev);
if (!count) return -EINVAL;
pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
return 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 sysfs_emit(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) { mutex_lock(&s->ops_mutex); s->irq_mask &= mask; mutex_unlock(&s->ops_mutex); 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 sysfs_emit(buf, "%s\n", str_yes_no(s->resource_setup_done));}
static ssize_t pccard_store_resource(struct device *dev, struct device_attribute *attr, const char *buf, size_t count){ struct pcmcia_socket *s = to_socket(dev);
if (!count) return -EINVAL;
mutex_lock(&s->ops_mutex); if (!s->resource_setup_done) s->resource_setup_done = 1; mutex_unlock(&s->ops_mutex);
pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
return count;}static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
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,};
int pccard_sysfs_add_socket(struct device *dev){ return sysfs_create_group(&dev->kobj, &socket_attrs);}
void pccard_sysfs_remove_socket(struct device *dev){ sysfs_remove_group(&dev->kobj, &socket_attrs);}