1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
21da177e4SLinus Torvalds /*
31da177e4SLinus Torvalds * socket_sysfs.c -- most of socket-related sysfs output
41da177e4SLinus Torvalds *
51da177e4SLinus Torvalds * (C) 2003 - 2004 Dominik Brodowski
61da177e4SLinus Torvalds */
71da177e4SLinus Torvalds
81da177e4SLinus Torvalds #include <linux/module.h>
91da177e4SLinus Torvalds #include <linux/moduleparam.h>
101da177e4SLinus Torvalds #include <linux/init.h>
111da177e4SLinus Torvalds #include <linux/kernel.h>
121da177e4SLinus Torvalds #include <linux/string.h>
131da177e4SLinus Torvalds #include <linux/major.h>
141da177e4SLinus Torvalds #include <linux/errno.h>
151da177e4SLinus Torvalds #include <linux/mm.h>
161da177e4SLinus Torvalds #include <linux/interrupt.h>
171da177e4SLinus Torvalds #include <linux/timer.h>
181da177e4SLinus Torvalds #include <linux/ioport.h>
191da177e4SLinus Torvalds #include <linux/delay.h>
201da177e4SLinus Torvalds #include <linux/pm.h>
211da177e4SLinus Torvalds #include <linux/device.h>
227fe908ddSDominik Brodowski #include <linux/mutex.h>
231da177e4SLinus Torvalds #include <asm/irq.h>
241da177e4SLinus Torvalds
251da177e4SLinus Torvalds #include <pcmcia/ss.h>
261da177e4SLinus Torvalds #include <pcmcia/cistpl.h>
271da177e4SLinus Torvalds #include <pcmcia/cisreg.h>
281da177e4SLinus Torvalds #include <pcmcia/ds.h>
291da177e4SLinus Torvalds #include "cs_internal.h"
301da177e4SLinus Torvalds
311da177e4SLinus Torvalds #define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
321da177e4SLinus Torvalds
pccard_show_type(struct device * dev,struct device_attribute * attr,char * buf)3387373318SGreg Kroah-Hartman static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr,
3487373318SGreg Kroah-Hartman char *buf)
351da177e4SLinus Torvalds {
361da177e4SLinus Torvalds struct pcmcia_socket *s = to_socket(dev);
371da177e4SLinus Torvalds
381da177e4SLinus Torvalds if (!(s->state & SOCKET_PRESENT))
391da177e4SLinus Torvalds return -ENODEV;
40002dbb2dSDominik Brodowski if (s->state & SOCKET_CARDBUS)
41*78e0185cSDominik Brodowski return sysfs_emit(buf, "32-bit\n");
42*78e0185cSDominik Brodowski return sysfs_emit(buf, "16-bit\n");
431da177e4SLinus Torvalds }
4487373318SGreg Kroah-Hartman static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
451da177e4SLinus Torvalds
pccard_show_voltage(struct device * dev,struct device_attribute * attr,char * buf)4687373318SGreg Kroah-Hartman static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr,
4787373318SGreg Kroah-Hartman char *buf)
481da177e4SLinus Torvalds {
491da177e4SLinus Torvalds struct pcmcia_socket *s = to_socket(dev);
501da177e4SLinus Torvalds
511da177e4SLinus Torvalds if (!(s->state & SOCKET_PRESENT))
521da177e4SLinus Torvalds return -ENODEV;
53002dbb2dSDominik Brodowski if (s->socket.Vcc)
54*78e0185cSDominik Brodowski return sysfs_emit(buf, "%d.%dV\n", s->socket.Vcc / 10,
55002dbb2dSDominik Brodowski s->socket.Vcc % 10);
56*78e0185cSDominik Brodowski return sysfs_emit(buf, "X.XV\n");
571da177e4SLinus Torvalds }
5887373318SGreg Kroah-Hartman static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
591da177e4SLinus Torvalds
pccard_show_vpp(struct device * dev,struct device_attribute * attr,char * buf)6087373318SGreg Kroah-Hartman static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr,
6187373318SGreg Kroah-Hartman char *buf)
621da177e4SLinus Torvalds {
631da177e4SLinus Torvalds struct pcmcia_socket *s = to_socket(dev);
641da177e4SLinus Torvalds if (!(s->state & SOCKET_PRESENT))
651da177e4SLinus Torvalds return -ENODEV;
66*78e0185cSDominik Brodowski return sysfs_emit(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
671da177e4SLinus Torvalds }
6887373318SGreg Kroah-Hartman static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
691da177e4SLinus Torvalds
pccard_show_vcc(struct device * dev,struct device_attribute * attr,char * buf)7087373318SGreg Kroah-Hartman static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr,
7187373318SGreg Kroah-Hartman char *buf)
721da177e4SLinus Torvalds {
731da177e4SLinus Torvalds struct pcmcia_socket *s = to_socket(dev);
741da177e4SLinus Torvalds if (!(s->state & SOCKET_PRESENT))
751da177e4SLinus Torvalds return -ENODEV;
76*78e0185cSDominik Brodowski return sysfs_emit(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
771da177e4SLinus Torvalds }
7887373318SGreg Kroah-Hartman static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
791da177e4SLinus Torvalds
801da177e4SLinus Torvalds
pccard_store_insert(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)8187373318SGreg Kroah-Hartman static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr,
8287373318SGreg Kroah-Hartman const char *buf, size_t count)
831da177e4SLinus Torvalds {
841da177e4SLinus Torvalds struct pcmcia_socket *s = to_socket(dev);
851da177e4SLinus Torvalds
861da177e4SLinus Torvalds if (!count)
871da177e4SLinus Torvalds return -EINVAL;
881da177e4SLinus Torvalds
89f971dbd5SDominik Brodowski pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT);
901da177e4SLinus Torvalds
91f971dbd5SDominik Brodowski return count;
921da177e4SLinus Torvalds }
9387373318SGreg Kroah-Hartman static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
941da177e4SLinus Torvalds
95db1019caSDominik Brodowski
pccard_show_card_pm_state(struct device * dev,struct device_attribute * attr,char * buf)9687373318SGreg Kroah-Hartman static ssize_t pccard_show_card_pm_state(struct device *dev,
9787373318SGreg Kroah-Hartman struct device_attribute *attr,
9887373318SGreg Kroah-Hartman char *buf)
99db1019caSDominik Brodowski {
100db1019caSDominik Brodowski struct pcmcia_socket *s = to_socket(dev);
101*78e0185cSDominik Brodowski return sysfs_emit(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
102db1019caSDominik Brodowski }
103db1019caSDominik Brodowski
pccard_store_card_pm_state(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)10487373318SGreg Kroah-Hartman static ssize_t pccard_store_card_pm_state(struct device *dev,
10587373318SGreg Kroah-Hartman struct device_attribute *attr,
10687373318SGreg Kroah-Hartman const char *buf, size_t count)
107db1019caSDominik Brodowski {
108db1019caSDominik Brodowski struct pcmcia_socket *s = to_socket(dev);
109f971dbd5SDominik Brodowski ssize_t ret = count;
110db1019caSDominik Brodowski
111db1019caSDominik Brodowski if (!count)
112db1019caSDominik Brodowski return -EINVAL;
113db1019caSDominik Brodowski
114f971dbd5SDominik Brodowski if (!strncmp(buf, "off", 3))
115f971dbd5SDominik Brodowski pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND);
116f971dbd5SDominik Brodowski else {
117f971dbd5SDominik Brodowski if (!strncmp(buf, "on", 2))
118f971dbd5SDominik Brodowski pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME);
119f971dbd5SDominik Brodowski else
120f971dbd5SDominik Brodowski ret = -EINVAL;
121f971dbd5SDominik Brodowski }
122db1019caSDominik Brodowski
123f971dbd5SDominik Brodowski return ret;
124db1019caSDominik Brodowski }
12587373318SGreg Kroah-Hartman static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
126db1019caSDominik Brodowski
pccard_store_eject(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)12787373318SGreg Kroah-Hartman static ssize_t pccard_store_eject(struct device *dev,
12887373318SGreg Kroah-Hartman struct device_attribute *attr,
12987373318SGreg Kroah-Hartman const char *buf, size_t count)
1301da177e4SLinus Torvalds {
1311da177e4SLinus Torvalds struct pcmcia_socket *s = to_socket(dev);
1321da177e4SLinus Torvalds
1331da177e4SLinus Torvalds if (!count)
1341da177e4SLinus Torvalds return -EINVAL;
1351da177e4SLinus Torvalds
136f971dbd5SDominik Brodowski pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT);
1371da177e4SLinus Torvalds
138f971dbd5SDominik Brodowski return count;
1391da177e4SLinus Torvalds }
14087373318SGreg Kroah-Hartman static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
1411da177e4SLinus Torvalds
1421da177e4SLinus Torvalds
pccard_show_irq_mask(struct device * dev,struct device_attribute * attr,char * buf)14387373318SGreg Kroah-Hartman static ssize_t pccard_show_irq_mask(struct device *dev,
14487373318SGreg Kroah-Hartman struct device_attribute *attr,
14587373318SGreg Kroah-Hartman char *buf)
1461da177e4SLinus Torvalds {
1471da177e4SLinus Torvalds struct pcmcia_socket *s = to_socket(dev);
148*78e0185cSDominik Brodowski return sysfs_emit(buf, "0x%04x\n", s->irq_mask);
1491da177e4SLinus Torvalds }
1501da177e4SLinus Torvalds
pccard_store_irq_mask(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)15187373318SGreg Kroah-Hartman static ssize_t pccard_store_irq_mask(struct device *dev,
15287373318SGreg Kroah-Hartman struct device_attribute *attr,
15387373318SGreg Kroah-Hartman const char *buf, size_t count)
1541da177e4SLinus Torvalds {
1551da177e4SLinus Torvalds ssize_t ret;
1561da177e4SLinus Torvalds struct pcmcia_socket *s = to_socket(dev);
1571da177e4SLinus Torvalds u32 mask;
1581da177e4SLinus Torvalds
1591da177e4SLinus Torvalds if (!count)
1601da177e4SLinus Torvalds return -EINVAL;
1611da177e4SLinus Torvalds
1621da177e4SLinus Torvalds ret = sscanf(buf, "0x%x\n", &mask);
1631da177e4SLinus Torvalds
1641da177e4SLinus Torvalds if (ret == 1) {
16564d8d46fSDominik Brodowski mutex_lock(&s->ops_mutex);
1661da177e4SLinus Torvalds s->irq_mask &= mask;
16764d8d46fSDominik Brodowski mutex_unlock(&s->ops_mutex);
1681da177e4SLinus Torvalds ret = 0;
1691da177e4SLinus Torvalds }
1701da177e4SLinus Torvalds
1711da177e4SLinus Torvalds return ret ? ret : count;
1721da177e4SLinus Torvalds }
17387373318SGreg Kroah-Hartman static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
1741da177e4SLinus Torvalds
1751da177e4SLinus Torvalds
pccard_show_resource(struct device * dev,struct device_attribute * attr,char * buf)17687373318SGreg Kroah-Hartman static ssize_t pccard_show_resource(struct device *dev,
17787373318SGreg Kroah-Hartman struct device_attribute *attr, char *buf)
1781da177e4SLinus Torvalds {
1791da177e4SLinus Torvalds struct pcmcia_socket *s = to_socket(dev);
180*78e0185cSDominik Brodowski return sysfs_emit(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
1811da177e4SLinus Torvalds }
1821da177e4SLinus Torvalds
pccard_store_resource(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)18387373318SGreg Kroah-Hartman static ssize_t pccard_store_resource(struct device *dev,
18487373318SGreg Kroah-Hartman struct device_attribute *attr,
18587373318SGreg Kroah-Hartman const char *buf, size_t count)
1861da177e4SLinus Torvalds {
1871da177e4SLinus Torvalds struct pcmcia_socket *s = to_socket(dev);
1881da177e4SLinus Torvalds
1891da177e4SLinus Torvalds if (!count)
1901da177e4SLinus Torvalds return -EINVAL;
1911da177e4SLinus Torvalds
19200ce99ffSDominik Brodowski mutex_lock(&s->ops_mutex);
193e2f0b534SDominik Brodowski if (!s->resource_setup_done)
1941da177e4SLinus Torvalds s->resource_setup_done = 1;
19500ce99ffSDominik Brodowski mutex_unlock(&s->ops_mutex);
1961da177e4SLinus Torvalds
197af461fc1SDominik Brodowski pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
1981da177e4SLinus Torvalds
1991da177e4SLinus Torvalds return count;
2001da177e4SLinus Torvalds }
20187373318SGreg Kroah-Hartman static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
2021da177e4SLinus Torvalds
2034356d73dSDavid Brownell static struct attribute *pccard_socket_attributes[] = {
2044356d73dSDavid Brownell &dev_attr_card_type.attr,
2054356d73dSDavid Brownell &dev_attr_card_voltage.attr,
2064356d73dSDavid Brownell &dev_attr_card_vpp.attr,
2074356d73dSDavid Brownell &dev_attr_card_vcc.attr,
2084356d73dSDavid Brownell &dev_attr_card_insert.attr,
2094356d73dSDavid Brownell &dev_attr_card_pm_state.attr,
2104356d73dSDavid Brownell &dev_attr_card_eject.attr,
2114356d73dSDavid Brownell &dev_attr_card_irq_mask.attr,
2124356d73dSDavid Brownell &dev_attr_available_resources_setup_done.attr,
2131da177e4SLinus Torvalds NULL,
2141da177e4SLinus Torvalds };
2151da177e4SLinus Torvalds
2164356d73dSDavid Brownell static const struct attribute_group socket_attrs = {
2174356d73dSDavid Brownell .attrs = pccard_socket_attributes,
2184356d73dSDavid Brownell };
2194356d73dSDavid Brownell
pccard_sysfs_add_socket(struct device * dev)2204356d73dSDavid Brownell int pccard_sysfs_add_socket(struct device *dev)
2211da177e4SLinus Torvalds {
2226e7b51a7SDominik Brodowski return sysfs_create_group(&dev->kobj, &socket_attrs);
2231da177e4SLinus Torvalds }
2241da177e4SLinus Torvalds
pccard_sysfs_remove_socket(struct device * dev)2254356d73dSDavid Brownell void pccard_sysfs_remove_socket(struct device *dev)
2261da177e4SLinus Torvalds {
2274356d73dSDavid Brownell sysfs_remove_group(&dev->kobj, &socket_attrs);
2281da177e4SLinus Torvalds }
229