diff options
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/ds.c | 37 | ||||
| -rw-r--r-- | drivers/pcmcia/socket_sysfs.c | 25 |
2 files changed, 60 insertions, 2 deletions
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 0252582b91c..621ec459d27 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -920,6 +920,37 @@ pcmcia_device_stringattr(prod_id2, prod_id[1]); pcmcia_device_stringattr(prod_id3, prod_id[2]); pcmcia_device_stringattr(prod_id4, prod_id[3]); + +static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct pcmcia_device *p_dev = to_pcmcia_dev(dev); + + if (p_dev->dev.power.power_state.event != PM_EVENT_ON) + return sprintf(buf, "off\n"); + else + return sprintf(buf, "on\n"); +} + +static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct pcmcia_device *p_dev = to_pcmcia_dev(dev); + int ret = 0; + + if (!count) + return -EINVAL; + + if ((p_dev->dev.power.power_state.event == PM_EVENT_ON) && + (!strncmp(buf, "off", 3))) + ret = dpm_runtime_suspend(dev, PMSG_SUSPEND); + else if ((p_dev->dev.power.power_state.event != PM_EVENT_ON) && + (!strncmp(buf, "on", 2))) + dpm_runtime_resume(dev); + + return ret ? ret : count; +} + + static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); @@ -945,8 +976,9 @@ static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); - if (!count) - return -EINVAL; + + if (!count) + return -EINVAL; down(&p_dev->socket->skt_sem); p_dev->allow_func_id_match = 1; @@ -959,6 +991,7 @@ static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, static struct device_attribute pcmcia_dev_attrs[] = { __ATTR(function, 0444, func_show, NULL), + __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), __ATTR_RO(func_id), __ATTR_RO(manf_id), __ATTR_RO(card_id), diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c index 7a7744662d5..5ab1cdef7c4 100644 --- a/drivers/pcmcia/socket_sysfs.c +++ b/drivers/pcmcia/socket_sysfs.c @@ -98,6 +98,30 @@ static ssize_t pccard_store_insert(struct class_device *dev, const char *buf, si } static CLASS_DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert); + +static ssize_t pccard_show_card_pm_state(struct class_device *dev, char *buf) +{ + struct pcmcia_socket *s = to_socket(dev); + return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on"); +} + +static ssize_t pccard_store_card_pm_state(struct class_device *dev, const char *buf, size_t count) +{ + ssize_t ret = -EINVAL; + struct pcmcia_socket *s = to_socket(dev); + + if (!count) + return -EINVAL; + + if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3)) + ret = pcmcia_suspend_card(s); + else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2)) + ret = pcmcia_resume_card(s); + + return ret ? -ENODEV : count; +} +static CLASS_DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state); + static ssize_t pccard_store_eject(struct class_device *dev, const char *buf, size_t count) { ssize_t ret; @@ -320,6 +344,7 @@ static struct class_device_attribute *pccard_socket_attributes[] = { &class_device_attr_card_vpp, &class_device_attr_card_vcc, &class_device_attr_card_insert, + &class_device_attr_card_pm_state, &class_device_attr_card_eject, &class_device_attr_card_irq_mask, &class_device_attr_available_resources_setup_done, |