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 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) 411da177e4SLinus Torvalds return sprintf(buf, "32-bit\n"); 421da177e4SLinus Torvalds return sprintf(buf, "16-bit\n"); 431da177e4SLinus Torvalds } 4487373318SGreg Kroah-Hartman static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL); 451da177e4SLinus Torvalds 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) 54002dbb2dSDominik Brodowski return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, 55002dbb2dSDominik Brodowski s->socket.Vcc % 10); 561da177e4SLinus Torvalds return sprintf(buf, "X.XV\n"); 571da177e4SLinus Torvalds } 5887373318SGreg Kroah-Hartman static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL); 591da177e4SLinus Torvalds 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; 661da177e4SLinus Torvalds return sprintf(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 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; 761da177e4SLinus Torvalds return sprintf(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 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 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); 101db1019caSDominik Brodowski return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on"); 102db1019caSDominik Brodowski } 103db1019caSDominik Brodowski 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 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 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); 1481da177e4SLinus Torvalds return sprintf(buf, "0x%04x\n", s->irq_mask); 1491da177e4SLinus Torvalds } 1501da177e4SLinus Torvalds 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 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); 1801da177e4SLinus Torvalds return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no"); 1811da177e4SLinus Torvalds } 1821da177e4SLinus Torvalds 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 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 2254356d73dSDavid Brownell void pccard_sysfs_remove_socket(struct device *dev) 2261da177e4SLinus Torvalds { 2274356d73dSDavid Brownell sysfs_remove_group(&dev->kobj, &socket_attrs); 2281da177e4SLinus Torvalds } 229