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-rw-r--r--drivers/input/serio/ams_delta_serio.c1
-rw-r--r--drivers/input/serio/at32psif.c2
-rw-r--r--drivers/input/serio/hp_sdc.c2
-rw-r--r--drivers/input/serio/i8042-x86ia64io.h98
-rw-r--r--drivers/input/serio/i8042.c37
-rw-r--r--drivers/input/serio/libps2.c2
-rw-r--r--drivers/input/serio/sa1111ps2.c6
-rw-r--r--drivers/input/serio/serio_raw.c215
-rw-r--r--drivers/input/serio/serport.c45
-rw-r--r--drivers/input/serio/xilinx_ps2.c2
10 files changed, 297 insertions, 113 deletions
diff --git a/drivers/input/serio/ams_delta_serio.c b/drivers/input/serio/ams_delta_serio.c
index 4b2a42f..d4d08bd 100644
--- a/drivers/input/serio/ams_delta_serio.c
+++ b/drivers/input/serio/ams_delta_serio.c
@@ -24,6 +24,7 @@
#include <linux/irq.h>
#include <linux/serio.h>
#include <linux/slab.h>
+#include <linux/module.h>
#include <asm/mach-types.h>
#include <plat/board-ams-delta.h>
diff --git a/drivers/input/serio/at32psif.c b/drivers/input/serio/at32psif.c
index 6ee8f0d..95280f9 100644
--- a/drivers/input/serio/at32psif.c
+++ b/drivers/input/serio/at32psif.c
@@ -372,6 +372,6 @@ static void __exit psif_exit(void)
module_init(psif_init);
module_exit(psif_exit);
-MODULE_AUTHOR("Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>");
+MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>");
MODULE_DESCRIPTION("Atmel AVR32 PSIF PS/2 driver");
MODULE_LICENSE("GPL");
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index 4220620..979c443 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -795,7 +795,7 @@ int hp_sdc_release_cooked_irq(hp_sdc_irqhook *callback)
/************************* Keepalive timer task *********************/
-void hp_sdc_kicker (unsigned long data)
+static void hp_sdc_kicker(unsigned long data)
{
tasklet_schedule(&hp_sdc.task);
/* Re-insert the periodic task. */
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 20153fe..858b0e3 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -101,6 +101,12 @@ static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
},
{
.matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X750LN"),
+ },
+ },
+ {
+ .matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
@@ -146,6 +152,14 @@ static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
},
},
{
+ /* Medion Akoya E7225 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Akoya E7225"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
+ },
+ },
+ {
/* Blue FB5601 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "blue"),
@@ -402,6 +416,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
},
},
{
+ /* Acer Aspire 7738 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7738"),
+ },
+ },
+ {
/* Gericom Bellagio */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
@@ -451,6 +472,20 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
},
},
+ {
+ /* Newer HP Pavilion dv4 models */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
+ },
+ },
+ {
+ /* Avatar AVIU-145A6 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
+ },
+ },
{ }
};
@@ -580,6 +615,37 @@ static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
},
},
+ {
+ /* Newer HP Pavilion dv4 models */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
+ },
+ },
+ {
+ /* Fujitsu A544 laptop */
+ /* https://bugzilla.redhat.com/show_bug.cgi?id=1111138 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK A544"),
+ },
+ },
+ {
+ /* Fujitsu AH544 laptop */
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK AH544"),
+ },
+ },
+ {
+ /* Fujitsu U574 laptop */
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=69731 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U574"),
+ },
+ },
{ }
};
@@ -663,6 +729,35 @@ static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
{ }
};
+/*
+ * Some laptops need keyboard reset before probing for the trackpad to get
+ * it detected, initialised & finally work.
+ */
+static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
+ {
+ /* Gigabyte P35 v2 - Elantech touchpad */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "P35V2"),
+ },
+ },
+ {
+ /* Aorus branded Gigabyte X3 Plus - Elantech touchpad */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X3"),
+ },
+ },
+ {
+ /* Gigabyte P34 - Elantech touchpad */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "P34"),
+ },
+ },
+ { }
+};
+
#endif /* CONFIG_X86 */
#ifdef CONFIG_PNP
@@ -941,6 +1036,9 @@ static int __init i8042_platform_init(void)
if (dmi_check_system(i8042_dmi_dritek_table))
i8042_dritek = true;
+ if (dmi_check_system(i8042_dmi_kbdreset_table))
+ i8042_kbdreset = true;
+
/*
* A20 was already enabled during early kernel init. But some buggy
* BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index d37a48e..178e75d 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -67,6 +67,10 @@ static bool i8042_notimeout;
module_param_named(notimeout, i8042_notimeout, bool, 0);
MODULE_PARM_DESC(notimeout, "Ignore timeouts signalled by i8042");
+static bool i8042_kbdreset;
+module_param_named(kbdreset, i8042_kbdreset, bool, 0);
+MODULE_PARM_DESC(kbdreset, "Reset device connected to KBD port");
+
#ifdef CONFIG_X86
static bool i8042_dritek;
module_param_named(dritek, i8042_dritek, bool, 0);
@@ -783,6 +787,16 @@ static int __init i8042_check_aux(void)
return -1;
/*
+ * Reset keyboard (needed on some laptops to successfully detect
+ * touchpad, e.g., some Gigabyte laptop models with Elantech
+ * touchpads).
+ */
+ if (i8042_kbdreset) {
+ pr_warn("Attempting to reset device connected to KBD port\n");
+ i8042_kbd_write(NULL, (unsigned char) 0xff);
+ }
+
+/*
* Test AUX IRQ delivery to make sure BIOS did not grab the IRQ and
* used it for a PCI card or somethig else.
*/
@@ -991,7 +1005,7 @@ static int i8042_controller_init(void)
* Reset the controller and reset CRT to the original value set by BIOS.
*/
-static void i8042_controller_reset(void)
+static void i8042_controller_reset(bool force_reset)
{
i8042_flush();
@@ -1016,7 +1030,7 @@ static void i8042_controller_reset(void)
* Reset the controller if requested.
*/
- if (i8042_reset)
+ if (i8042_reset || force_reset)
i8042_controller_selftest();
/*
@@ -1139,9 +1153,9 @@ static int i8042_controller_resume(bool force_reset)
* upsetting it.
*/
-static int i8042_pm_reset(struct device *dev)
+static int i8042_pm_suspend(struct device *dev)
{
- i8042_controller_reset();
+ i8042_controller_reset(true);
return 0;
}
@@ -1163,13 +1177,20 @@ static int i8042_pm_thaw(struct device *dev)
return 0;
}
+static int i8042_pm_reset(struct device *dev)
+{
+ i8042_controller_reset(false);
+
+ return 0;
+}
+
static int i8042_pm_restore(struct device *dev)
{
return i8042_controller_resume(false);
}
static const struct dev_pm_ops i8042_pm_ops = {
- .suspend = i8042_pm_reset,
+ .suspend = i8042_pm_suspend,
.resume = i8042_pm_resume,
.thaw = i8042_pm_thaw,
.poweroff = i8042_pm_reset,
@@ -1185,7 +1206,7 @@ static const struct dev_pm_ops i8042_pm_ops = {
static void i8042_shutdown(struct platform_device *dev)
{
- i8042_controller_reset();
+ i8042_controller_reset(false);
}
static int __init i8042_create_kbd_port(void)
@@ -1424,7 +1445,7 @@ static int __init i8042_probe(struct platform_device *dev)
out_fail:
i8042_free_aux_ports(); /* in case KBD failed but AUX not */
i8042_free_irqs();
- i8042_controller_reset();
+ i8042_controller_reset(false);
i8042_platform_device = NULL;
return error;
@@ -1434,7 +1455,7 @@ static int __devexit i8042_remove(struct platform_device *dev)
{
i8042_unregister_ports();
i8042_free_irqs();
- i8042_controller_reset();
+ i8042_controller_reset(false);
i8042_platform_device = NULL;
return 0;
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c
index 980af94..07a8363 100644
--- a/drivers/input/serio/libps2.c
+++ b/drivers/input/serio/libps2.c
@@ -210,7 +210,7 @@ int __ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command)
/*
* Some devices (Synaptics) peform the reset before
* ACKing the reset command, and so it can take a long
- * time before the ACK arrrives.
+ * time before the ACK arrives.
*/
if (ps2_sendbyte(ps2dev, command & 0xff,
command == PS2_CMD_RESET_BAT ? 1000 : 200))
diff --git a/drivers/input/serio/sa1111ps2.c b/drivers/input/serio/sa1111ps2.c
index d55874e..44fc8b4 100644
--- a/drivers/input/serio/sa1111ps2.c
+++ b/drivers/input/serio/sa1111ps2.c
@@ -300,8 +300,7 @@ static int __devinit ps2_probe(struct sa1111_dev *dev)
out:
sa1111_disable_device(ps2if->dev);
- release_mem_region(dev->res.start,
- dev->res.end - dev->res.start + 1);
+ release_mem_region(dev->res.start, resource_size(&dev->res));
free:
sa1111_set_drvdata(dev, NULL);
kfree(ps2if);
@@ -317,8 +316,7 @@ static int __devexit ps2_remove(struct sa1111_dev *dev)
struct ps2if *ps2if = sa1111_get_drvdata(dev);
serio_unregister_port(ps2if->io);
- release_mem_region(dev->res.start,
- dev->res.end - dev->res.start + 1);
+ release_mem_region(dev->res.start, resource_size(&dev->res));
sa1111_set_drvdata(dev, NULL);
kfree(ps2if);
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
index b7ba459..4d4cd14 100644
--- a/drivers/input/serio/serio_raw.c
+++ b/drivers/input/serio/serio_raw.c
@@ -9,6 +9,7 @@
* the Free Software Foundation.
*/
+#include <linux/kref.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/poll.h>
@@ -33,15 +34,16 @@ struct serio_raw {
unsigned int tail, head;
char name[16];
- unsigned int refcnt;
+ struct kref kref;
struct serio *serio;
struct miscdevice dev;
wait_queue_head_t wait;
- struct list_head list;
+ struct list_head client_list;
struct list_head node;
+ bool dead;
};
-struct serio_raw_list {
+struct serio_raw_client {
struct fasync_struct *fasync;
struct serio_raw *serio_raw;
struct list_head node;
@@ -49,7 +51,6 @@ struct serio_raw_list {
static DEFINE_MUTEX(serio_raw_mutex);
static LIST_HEAD(serio_raw_list);
-static unsigned int serio_raw_no;
/*********************************************************************
* Interface with userspace (file operations) *
@@ -57,9 +58,9 @@ static unsigned int serio_raw_no;
static int serio_raw_fasync(int fd, struct file *file, int on)
{
- struct serio_raw_list *list = file->private_data;
+ struct serio_raw_client *client = file->private_data;
- return fasync_helper(fd, file, on, &list->fasync);
+ return fasync_helper(fd, file, on, &client->fasync);
}
static struct serio_raw *serio_raw_locate(int minor)
@@ -77,8 +78,8 @@ static struct serio_raw *serio_raw_locate(int minor)
static int serio_raw_open(struct inode *inode, struct file *file)
{
struct serio_raw *serio_raw;
- struct serio_raw_list *list;
- int retval = 0;
+ struct serio_raw_client *client;
+ int retval;
retval = mutex_lock_interruptible(&serio_raw_mutex);
if (retval)
@@ -90,60 +91,61 @@ static int serio_raw_open(struct inode *inode, struct file *file)
goto out;
}
- if (!serio_raw->serio) {
+ if (serio_raw->dead) {
retval = -ENODEV;
goto out;
}
- list = kzalloc(sizeof(struct serio_raw_list), GFP_KERNEL);
- if (!list) {
+ client = kzalloc(sizeof(struct serio_raw_client), GFP_KERNEL);
+ if (!client) {
retval = -ENOMEM;
goto out;
}
- list->serio_raw = serio_raw;
- file->private_data = list;
+ client->serio_raw = serio_raw;
+ file->private_data = client;
+
+ kref_get(&serio_raw->kref);
- serio_raw->refcnt++;
- list_add_tail(&list->node, &serio_raw->list);
+ serio_pause_rx(serio_raw->serio);
+ list_add_tail(&client->node, &serio_raw->client_list);
+ serio_continue_rx(serio_raw->serio);
out:
mutex_unlock(&serio_raw_mutex);
return retval;
}
-static int serio_raw_cleanup(struct serio_raw *serio_raw)
+static void serio_raw_free(struct kref *kref)
{
- if (--serio_raw->refcnt == 0) {
- misc_deregister(&serio_raw->dev);
- list_del_init(&serio_raw->node);
- kfree(serio_raw);
+ struct serio_raw *serio_raw =
+ container_of(kref, struct serio_raw, kref);
- return 1;
- }
-
- return 0;
+ put_device(&serio_raw->serio->dev);
+ kfree(serio_raw);
}
static int serio_raw_release(struct inode *inode, struct file *file)
{
- struct serio_raw_list *list = file->private_data;
- struct serio_raw *serio_raw = list->serio_raw;
+ struct serio_raw_client *client = file->private_data;
+ struct serio_raw *serio_raw = client->serio_raw;
- mutex_lock(&serio_raw_mutex);
+ serio_pause_rx(serio_raw->serio);
+ list_del(&client->node);
+ serio_continue_rx(serio_raw->serio);
- serio_raw_cleanup(serio_raw);
+ kfree(client);
+
+ kref_put(&serio_raw->kref, serio_raw_free);
- mutex_unlock(&serio_raw_mutex);
return 0;
}
-static int serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c)
+static bool serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c)
{
- unsigned long flags;
- int empty;
+ bool empty;
- spin_lock_irqsave(&serio_raw->serio->lock, flags);
+ serio_pause_rx(serio_raw->serio);
empty = serio_raw->head == serio_raw->tail;
if (!empty) {
@@ -151,30 +153,31 @@ static int serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c)
serio_raw->tail = (serio_raw->tail + 1) % SERIO_RAW_QUEUE_LEN;
}
- spin_unlock_irqrestore(&serio_raw->serio->lock, flags);
+ serio_continue_rx(serio_raw->serio);
return !empty;
}
-static ssize_t serio_raw_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+static ssize_t serio_raw_read(struct file *file, char __user *buffer,
+ size_t count, loff_t *ppos)
{
- struct serio_raw_list *list = file->private_data;
- struct serio_raw *serio_raw = list->serio_raw;
+ struct serio_raw_client *client = file->private_data;
+ struct serio_raw *serio_raw = client->serio_raw;
char uninitialized_var(c);
ssize_t retval = 0;
- if (!serio_raw->serio)
+ if (serio_raw->dead)
return -ENODEV;
if (serio_raw->head == serio_raw->tail && (file->f_flags & O_NONBLOCK))
return -EAGAIN;
- retval = wait_event_interruptible(list->serio_raw->wait,
- serio_raw->head != serio_raw->tail || !serio_raw->serio);
+ retval = wait_event_interruptible(serio_raw->wait,
+ serio_raw->head != serio_raw->tail || serio_raw->dead);
if (retval)
return retval;
- if (!serio_raw->serio)
+ if (serio_raw->dead)
return -ENODEV;
while (retval < count && serio_raw_fetch_byte(serio_raw, &c)) {
@@ -186,9 +189,11 @@ static ssize_t serio_raw_read(struct file *file, char __user *buffer, size_t cou
return retval;
}
-static ssize_t serio_raw_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+static ssize_t serio_raw_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
{
- struct serio_raw_list *list = file->private_data;
+ struct serio_raw_client *client = file->private_data;
+ struct serio_raw *serio_raw = client->serio_raw;
ssize_t written = 0;
int retval;
unsigned char c;
@@ -197,7 +202,7 @@ static ssize_t serio_raw_write(struct file *file, const char __user *buffer, siz
if (retval)
return retval;
- if (!list->serio_raw->serio) {
+ if (serio_raw->dead) {
retval = -ENODEV;
goto out;
}
@@ -210,7 +215,7 @@ static ssize_t serio_raw_write(struct file *file, const char __user *buffer, siz
retval = -EFAULT;
goto out;
}
- if (serio_write(list->serio_raw->serio, c)) {
+ if (serio_write(serio_raw->serio, c)) {
retval = -EIO;
goto out;
}
@@ -224,46 +229,49 @@ out:
static unsigned int serio_raw_poll(struct file *file, poll_table *wait)
{
- struct serio_raw_list *list = file->private_data;
+ struct serio_raw_client *client = file->private_data;
+ struct serio_raw *serio_raw = client->serio_raw;
+ unsigned int mask;
- poll_wait(file, &list->serio_raw->wait, wait);
+ poll_wait(file, &serio_raw->wait, wait);
- if (list->serio_raw->head != list->serio_raw->tail)
+ mask = serio_raw->dead ? POLLHUP | POLLERR : POLLOUT | POLLWRNORM;
+ if (serio_raw->head != serio_raw->tail)
return POLLIN | POLLRDNORM;
return 0;
}
static const struct file_operations serio_raw_fops = {
- .owner = THIS_MODULE,
- .open = serio_raw_open,
- .release = serio_raw_release,
- .read = serio_raw_read,
- .write = serio_raw_write,
- .poll = serio_raw_poll,
- .fasync = serio_raw_fasync,
- .llseek = noop_llseek,
+ .owner = THIS_MODULE,
+ .open = serio_raw_open,
+ .release = serio_raw_release,
+ .read = serio_raw_read,
+ .write = serio_raw_write,
+ .poll = serio_raw_poll,
+ .fasync = serio_raw_fasync,
+ .llseek = noop_llseek,
};
/*********************************************************************
- * Interface with serio port *
+ * Interface with serio port *
*********************************************************************/
static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
unsigned int dfl)
{
struct serio_raw *serio_raw = serio_get_drvdata(serio);
- struct serio_raw_list *list;
+ struct serio_raw_client *client;
unsigned int head = serio_raw->head;
- /* we are holding serio->lock here so we are prootected */
+ /* we are holding serio->lock here so we are protected */
serio_raw->queue[head] = data;
head = (head + 1) % SERIO_RAW_QUEUE_LEN;
if (likely(head != serio_raw->tail)) {
serio_raw->head = head;
- list_for_each_entry(list, &serio_raw->list, node)
- kill_fasync(&list->fasync, SIGIO, POLL_IN);
+ list_for_each_entry(client, &serio_raw->client_list, node)
+ kill_fasync(&client->fasync, SIGIO, POLL_IN);
wake_up_interruptible(&serio_raw->wait);
}
@@ -272,29 +280,37 @@ static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
{
+ static atomic_t serio_raw_no = ATOMIC_INIT(0);
struct serio_raw *serio_raw;
int err;
- if (!(serio_raw = kzalloc(sizeof(struct serio_raw), GFP_KERNEL))) {
- printk(KERN_ERR "serio_raw.c: can't allocate memory for a device\n");
+ serio_raw = kzalloc(sizeof(struct serio_raw), GFP_KERNEL);
+ if (!serio_raw) {
+ dev_dbg(&serio->dev, "can't allocate memory for a device\n");
return -ENOMEM;
}
- mutex_lock(&serio_raw_mutex);
+ snprintf(serio_raw->name, sizeof(serio_raw->name),
+ "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no) - 1);
+ kref_init(&serio_raw->kref);
+ INIT_LIST_HEAD(&serio_raw->client_list);
+ init_waitqueue_head(&serio_raw->wait);
- snprintf(serio_raw->name, sizeof(serio_raw->name), "serio_raw%d", serio_raw_no++);
- serio_raw->refcnt = 1;
serio_raw->serio = serio;
- INIT_LIST_HEAD(&serio_raw->list);
- init_waitqueue_head(&serio_raw->wait);
+ get_device(&serio->dev);
serio_set_drvdata(serio, serio_raw);
err = serio_open(serio, drv);
if (err)
- goto out_free;
+ goto err_free;
+
+ err = mutex_lock_killable(&serio_raw_mutex);
+ if (err)
+ goto err_close;
list_add_tail(&serio_raw->node, &serio_raw_list);
+ mutex_unlock(&serio_raw_mutex);
serio_raw->dev.minor = PSMOUSE_MINOR;
serio_raw->dev.name = serio_raw->name;
@@ -308,23 +324,23 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
}
if (err) {
- printk(KERN_INFO "serio_raw: failed to register raw access device for %s\n",
+ dev_err(&serio->dev,
+ "failed to register raw access device for %s\n",
serio->phys);
- goto out_close;
+ goto err_unlink;
}
- printk(KERN_INFO "serio_raw: raw access enabled on %s (%s, minor %d)\n",
- serio->phys, serio_raw->name, serio_raw->dev.minor);
- goto out;
+ dev_info(&serio->dev, "raw access enabled on %s (%s, minor %d)\n",
+ serio->phys, serio_raw->name, serio_raw->dev.minor);
+ return 0;
-out_close:
- serio_close(serio);
+err_unlink:
list_del_init(&serio_raw->node);
-out_free:
+err_close:
+ serio_close(serio);
+err_free:
serio_set_drvdata(serio, NULL);
- kfree(serio_raw);
-out:
- mutex_unlock(&serio_raw_mutex);
+ kref_put(&serio_raw->kref, serio_raw_free);
return err;
}
@@ -334,7 +350,8 @@ static int serio_raw_reconnect(struct serio *serio)
struct serio_driver *drv = serio->drv;
if (!drv || !serio_raw) {
- printk(KERN_DEBUG "serio_raw: reconnect request, but serio is disconnected, ignoring...\n");
+ dev_dbg(&serio->dev,
+ "reconnect request, but serio is disconnected, ignoring...\n");
return -1;
}
@@ -345,22 +362,40 @@ static int serio_raw_reconnect(struct serio *serio)
return 0;
}
+/*
+ * Wake up users waiting for IO so they can disconnect from
+ * dead device.
+ */
+static void serio_raw_hangup(struct serio_raw *serio_raw)
+{
+ struct serio_raw_client *client;
+
+ serio_pause_rx(serio_raw->serio);
+ list_for_each_entry(client, &serio_raw->client_list, node)
+ kill_fasync(&client->fasync, SIGIO, POLL_HUP);
+ serio_continue_rx(serio_raw->serio);
+
+ wake_up_interruptible(&serio_raw->wait);
+}
+
+
static void serio_raw_disconnect(struct serio *serio)
{
- struct serio_raw *serio_raw;
+ struct serio_raw *serio_raw = serio_get_drvdata(serio);
+
+ misc_deregister(&serio_raw->dev);
mutex_lock(&serio_raw_mutex);
+ serio_raw->dead = true;
+ list_del_init(&serio_raw->node);
+ mutex_unlock(&serio_raw_mutex);
- serio_raw = serio_get_drvdata(serio);
+ serio_raw_hangup(serio_raw);
serio_close(serio);
- serio_set_drvdata(serio, NULL);
-
- serio_raw->serio = NULL;
- if (!serio_raw_cleanup(serio_raw))
- wake_up_interruptible(&serio_raw->wait);
+ kref_put(&serio_raw->kref, serio_raw_free);
- mutex_unlock(&serio_raw_mutex);
+ serio_set_drvdata(serio, NULL);
}
static struct serio_device_id serio_raw_serio_ids[] = {
@@ -391,7 +426,7 @@ static struct serio_driver serio_raw_drv = {
.connect = serio_raw_connect,
.reconnect = serio_raw_reconnect,
.disconnect = serio_raw_disconnect,
- .manual_bind = 1,
+ .manual_bind = true,
};
static int __init serio_raw_init(void)
diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c
index 8755f5f..e4ecf3b 100644
--- a/drivers/input/serio/serport.c
+++ b/drivers/input/serio/serport.c
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/serio.h>
#include <linux/tty.h>
+#include <linux/compat.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Input device TTY line discipline");
@@ -196,28 +197,55 @@ static ssize_t serport_ldisc_read(struct tty_struct * tty, struct file * file, u
return 0;
}
+static void serport_set_type(struct tty_struct *tty, unsigned long type)
+{
+ struct serport *serport = tty->disc_data;
+
+ serport->id.proto = type & 0x000000ff;
+ serport->id.id = (type & 0x0000ff00) >> 8;
+ serport->id.extra = (type & 0x00ff0000) >> 16;
+}
+
/*
* serport_ldisc_ioctl() allows to set the port protocol, and device ID
*/
-static int serport_ldisc_ioctl(struct tty_struct * tty, struct file * file, unsigned int cmd, unsigned long arg)
+static int serport_ldisc_ioctl(struct tty_struct *tty, struct file *file,
+ unsigned int cmd, unsigned long arg)
{
- struct serport *serport = (struct serport*) tty->disc_data;
- unsigned long type;
-
if (cmd == SPIOCSTYPE) {
+ unsigned long type;
+
if (get_user(type, (unsigned long __user *) arg))
return -EFAULT;
- serport->id.proto = type & 0x000000ff;
- serport->id.id = (type & 0x0000ff00) >> 8;
- serport->id.extra = (type & 0x00ff0000) >> 16;
+ serport_set_type(tty, type);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+#ifdef CONFIG_COMPAT
+#define COMPAT_SPIOCSTYPE _IOW('q', 0x01, compat_ulong_t)
+static long serport_ldisc_compat_ioctl(struct tty_struct *tty,
+ struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ if (cmd == COMPAT_SPIOCSTYPE) {
+ void __user *uarg = compat_ptr(arg);
+ compat_ulong_t compat_type;
+
+ if (get_user(compat_type, (compat_ulong_t __user *)uarg))
+ return -EFAULT;
+ serport_set_type(tty, compat_type);
return 0;
}
return -EINVAL;
}
+#endif
static void serport_ldisc_write_wakeup(struct tty_struct * tty)
{
@@ -241,6 +269,9 @@ static struct tty_ldisc_ops serport_ldisc = {
.close = serport_ldisc_close,
.read = serport_ldisc_read,
.ioctl = serport_ldisc_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = serport_ldisc_compat_ioctl,
+#endif
.receive_buf = serport_ldisc_receive,
.write_wakeup = serport_ldisc_write_wakeup
};
diff --git a/drivers/input/serio/xilinx_ps2.c b/drivers/input/serio/xilinx_ps2.c
index 80baa53..d64c5a4 100644
--- a/drivers/input/serio/xilinx_ps2.c
+++ b/drivers/input/serio/xilinx_ps2.c
@@ -23,7 +23,7 @@
#include <linux/init.h>
#include <linux/list.h>
#include <linux/io.h>
-
+#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
generated by cgit v1.1 at 2024-04-27 23:59:59 +0000