diff options
Diffstat (limited to 'drivers/pcmcia/socket_sysfs.c')
| -rw-r--r-- | drivers/pcmcia/socket_sysfs.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c new file mode 100644 index 00000000000..8eed0393821 --- /dev/null +++ b/drivers/pcmcia/socket_sysfs.c @@ -0,0 +1,228 @@ +/* + * 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/config.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 <asm/system.h> +#include <asm/irq.h> + +#define IN_CARD_SERVICES +#include <pcmcia/version.h> +#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 class_device *dev, char *buf) +{ + int val; + struct pcmcia_socket *s = to_socket(dev); + + if (!(s->state & SOCKET_PRESENT)) + return -ENODEV; + s->ops->get_status(s, &val); + if (val & SS_CARDBUS) + return sprintf(buf, "32-bit\n"); + if (val & SS_DETECT) + return sprintf(buf, "16-bit\n"); + return sprintf(buf, "invalid\n"); +} +static CLASS_DEVICE_ATTR(card_type, 0400, pccard_show_type, NULL); + +static ssize_t pccard_show_voltage(struct class_device *dev, char *buf) +{ + int val; + struct pcmcia_socket *s = to_socket(dev); + + if (!(s->state & SOCKET_PRESENT)) + return -ENODEV; + s->ops->get_status(s, &val); + if (val & SS_3VCARD) + return sprintf(buf, "3.3V\n"); + if (val & SS_XVCARD) + return sprintf(buf, "X.XV\n"); + return sprintf(buf, "5.0V\n"); +} +static CLASS_DEVICE_ATTR(card_voltage, 0400, pccard_show_voltage, NULL); + +static ssize_t pccard_show_vpp(struct class_device *dev, 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 CLASS_DEVICE_ATTR(card_vpp, 0400, pccard_show_vpp, NULL); + +static ssize_t pccard_show_vcc(struct class_device *dev, 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 CLASS_DEVICE_ATTR(card_vcc, 0400, pccard_show_vcc, NULL); + + +static ssize_t pccard_store_insert(struct class_device *dev, 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 CLASS_DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert); + +static ssize_t pccard_store_eject(struct class_device *dev, 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 CLASS_DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject); + + +static ssize_t pccard_show_irq_mask(struct class_device *dev, 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 class_device *dev, 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 CLASS_DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask); + + +static ssize_t pccard_show_resource(struct class_device *dev, 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 class_device *dev, 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); + + down(&s->skt_sem); + if ((s->callback) && + (s->state & SOCKET_PRESENT) && + !(s->state & SOCKET_CARDBUS)) { + if (try_module_get(s->callback->owner)) { + s->callback->resources_done(s); + module_put(s->callback->owner); + } + } + up(&s->skt_sem); + + return count; + } + spin_unlock_irqrestore(&s->lock, flags); + + return count; +} +static CLASS_DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource); + + +static struct class_device_attribute *pccard_socket_attributes[] = { + &class_device_attr_card_type, + &class_device_attr_card_voltage, + &class_device_attr_card_vpp, + &class_device_attr_card_vcc, + &class_device_attr_card_insert, + &class_device_attr_card_eject, + &class_device_attr_card_irq_mask, + &class_device_attr_available_resources_setup_done, + NULL, +}; + +static int __devinit pccard_sysfs_add_socket(struct class_device *class_dev) +{ + struct class_device_attribute **attr; + int ret = 0; + + for (attr = pccard_socket_attributes; *attr; attr++) { + ret = class_device_create_file(class_dev, *attr); + if (ret) + break; + } + + return ret; +} + +static void __devexit pccard_sysfs_remove_socket(struct class_device *class_dev) +{ + struct class_device_attribute **attr; + + for (attr = pccard_socket_attributes; *attr; attr++) + class_device_remove_file(class_dev, *attr); +} + +struct class_interface pccard_sysfs_interface = { + .class = &pcmcia_socket_class, + .add = &pccard_sysfs_add_socket, + .remove = __devexit_p(&pccard_sysfs_remove_socket), +}; |