V4L/DVB: ir-core: export driver name used by IR via uevent

Now, both driver and keytable names are exported to userspace. This
will help userspace to decide when a table need to be replaced
by another one.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

13 files changed, 43 insertions, 15 deletions

diff --git a/drivers/media/IR/ir-keytable.c b/drivers/media/IR/ir-keytable.c
index 6db3ff74659b..73fe4bec83bc 100644
--- a/drivers/media/IR/ir-keytable.c
+++ b/drivers/media/IR/ir-keytable.c
@@ -404,7 +404,8 @@ EXPORT_SYMBOL_GPL(ir_g_keycode_from_table);
  */
 int ir_input_register(struct input_dev *input_dev,
                       const struct ir_scancode_table *rc_tab,
-                      const struct ir_dev_props *props)
+                      const struct ir_dev_props *props,
+                      const char *driver_name)
 {
         struct ir_input_dev *ir_dev;
         struct ir_scancode  *keymap    = rc_tab->scan;
@@ -419,6 +420,10 @@ int ir_input_register(struct input_dev *input_dev,
 
         spin_lock_init(&ir_dev->rc_tab.lock);
 
+        ir_dev->driver_name = kmalloc(strlen(driver_name) + 1, GFP_KERNEL);
+        if (!ir_dev->driver_name)
+                return -ENOMEM;
+        strcpy(ir_dev->driver_name, driver_name);
         ir_dev->rc_tab.name = rc_tab->name;
         ir_dev->rc_tab.size = ir_roundup_tablesize(rc_tab->size);
         ir_dev->rc_tab.scan = kzalloc(ir_dev->rc_tab.size *
diff --git a/drivers/media/IR/ir-sysfs.c b/drivers/media/IR/ir-sysfs.c
index 6d63657b5685..0592515a19f8 100644
--- a/drivers/media/IR/ir-sysfs.c
+++ b/drivers/media/IR/ir-sysfs.c
@@ -140,6 +140,8 @@ static int ir_dev_uevent(struct device *device, struct kobj_uevent_env *env)
 
         if (ir_dev->rc_tab.name)
                 ADD_HOTPLUG_VAR("NAME=\"%s\"", ir_dev->rc_tab.name);
+        if (ir_dev->driver_name)
+                ADD_HOTPLUG_VAR("DRV_NAME=\"%s\"", ir_dev->driver_name);
 
         return 0;
 }
diff --git a/drivers/media/dvb/dm1105/dm1105.c b/drivers/media/dvb/dm1105/dm1105.c
index b6d46961a99e..3229ff325c56 100644
--- a/drivers/media/dvb/dm1105/dm1105.c
+++ b/drivers/media/dvb/dm1105/dm1105.c
@@ -46,6 +46,8 @@
 #include "z0194a.h"
 #include "ds3000.h"
 
+#define MODULE_NAME "dm1105"
+
 #define UNSET (-1U)
 
 #define DM1105_BOARD_NOAUTO             UNSET
@@ -628,7 +630,7 @@ int __devinit dm1105_ir_init(struct dm1105_dev *dm1105)
 
         INIT_WORK(&dm1105->ir.work, dm1105_emit_key);
 
-        err = ir_input_register(input_dev, ir_codes, NULL);
+        err = ir_input_register(input_dev, ir_codes, NULL, MODULE_NAME);
 
         return err;
 }
diff --git a/drivers/media/dvb/mantis/mantis_input.c b/drivers/media/dvb/mantis/mantis_input.c
index 4675a3b53c7d..6baf30229689 100644
--- a/drivers/media/dvb/mantis/mantis_input.c
+++ b/drivers/media/dvb/mantis/mantis_input.c
@@ -32,6 +32,8 @@
 #include "mantis_reg.h"
 #include "mantis_uart.h"
 
+#define MODULE_NAME "mantis_core"
+
 static struct ir_scancode mantis_ir_table[] = {
         { 0x29, KEY_POWER       },
         { 0x28, KEY_FAVORITES   },
@@ -126,7 +128,7 @@ int mantis_input_init(struct mantis_pci *mantis)
         rc->id.version  = 1;
         rc->dev         = mantis->pdev->dev;
 
-        err = ir_input_register(rc, &ir_mantis, NULL);
+        err = ir_input_register(rc, &ir_mantis, NULL, MODULE_NAME);
         if (err) {
                 dprintk(MANTIS_ERROR, 1, "IR device registration failed, ret = %d", err);
                 input_free_device(rc);
diff --git a/drivers/media/dvb/ttpci/budget-ci.c b/drivers/media/dvb/ttpci/budget-ci.c
index 49c2a817a06f..ec89afd38917 100644
--- a/drivers/media/dvb/ttpci/budget-ci.c
+++ b/drivers/media/dvb/ttpci/budget-ci.c
@@ -54,6 +54,8 @@
 #include "tda1002x.h"
 #include "tda827x.h"
 
+#define MODULE_NAME "budget_ci"
+
 /*
  * Regarding DEBIADDR_IR:
  * Some CI modules hang if random addresses are read.
@@ -254,7 +256,7 @@ static int msp430_ir_init(struct budget_ci *budget_ci)
         budget_ci->ir.timer_keyup.function = msp430_ir_keyup;
         budget_ci->ir.timer_keyup.data = (unsigned long) &budget_ci->ir;
         budget_ci->ir.last_raw = 0xffff; /* An impossible value */
-        error = ir_input_register(input_dev, ir_codes, NULL);
+        error = ir_input_register(input_dev, ir_codes, NULL, MODULE_NAME);
         if (error) {
                 printk(KERN_ERR "budget_ci: could not init driver for IR device (code %d)\n", error);
                 return error;
diff --git a/drivers/media/video/bt8xx/bttv-input.c b/drivers/media/video/bt8xx/bttv-input.c
index aa153a986ade..d17a9b7911e5 100644
--- a/drivers/media/video/bt8xx/bttv-input.c
+++ b/drivers/media/video/bt8xx/bttv-input.c
@@ -49,6 +49,8 @@ module_param(ir_rc5_key_timeout, int, 0644);
 
 #define DEVNAME "bttv-input"
 
+#define MODULE_NAME "bttv"
+
 /* ---------------------------------------------------------------------- */
 
 static void ir_handle_key(struct bttv *btv)
@@ -390,7 +392,7 @@ int bttv_input_init(struct bttv *btv)
         bttv_ir_start(btv, ir);
 
         /* all done */
-        err = ir_input_register(btv->remote->dev, ir_codes, NULL);
+        err = ir_input_register(btv->remote->dev, ir_codes, NULL, MODULE_NAME);
         if (err)
                 goto err_out_stop;
 
diff --git a/drivers/media/video/cx231xx/cx231xx-input.c b/drivers/media/video/cx231xx/cx231xx-input.c
index b473cd8367f5..a0e8bb88d67e 100644
--- a/drivers/media/video/cx231xx/cx231xx-input.c
+++ b/drivers/media/video/cx231xx/cx231xx-input.c
@@ -35,6 +35,8 @@ static unsigned int ir_debug;
 module_param(ir_debug, int, 0644);
 MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
 
+#define MODULE_NAME "cx231xx"
+
 #define i2cdprintk(fmt, arg...) \
         if (ir_debug) { \
                 printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \
@@ -217,7 +219,8 @@ int cx231xx_ir_init(struct cx231xx *dev)
         cx231xx_ir_start(ir);
 
         /* all done */
-        err = ir_input_register(ir->input, dev->board.ir_codes, NULL);
+        err = ir_input_register(ir->input, dev->board.ir_codes,
+                                NULL, MODULE_NAME);
         if (err)
                 goto err_out_stop;
 
diff --git a/drivers/media/video/cx23885/cx23885-input.c b/drivers/media/video/cx23885/cx23885-input.c
index 8e9d990dbe93..ef1db2d9668a 100644
--- a/drivers/media/video/cx23885/cx23885-input.c
+++ b/drivers/media/video/cx23885/cx23885-input.c
@@ -51,6 +51,8 @@
 
 #define RC5_EXTENDED_COMMAND_OFFSET     64
 
+#define MODULE_NAME "cx23885"
+
 static inline unsigned int rc5_command(u32 rc5_baseband)
 {
         return RC5_INSTR(rc5_baseband) +
@@ -398,7 +400,7 @@ int cx23885_input_init(struct cx23885_dev *dev)
         dev->ir_input = ir;
         cx23885_input_ir_start(dev);
 
-        ret = ir_input_register(ir->dev, ir_codes, NULL);
+        ret = ir_input_register(ir->dev, ir_codes, NULL, MODULE_NAME);
         if (ret)
                 goto err_out_stop;
 
diff --git a/drivers/media/video/cx88/cx88-input.c b/drivers/media/video/cx88/cx88-input.c
index 6b6abf062c21..8b52546c6e1d 100644
--- a/drivers/media/video/cx88/cx88-input.c
+++ b/drivers/media/video/cx88/cx88-input.c
@@ -32,6 +32,8 @@
 #include "cx88.h"
 #include <media/ir-common.h>
 
+#define MODULE_NAME "cx88xx"
+
 /* ---------------------------------------------------------------------- */
 
 struct cx88_IR {
@@ -384,7 +386,7 @@ int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
         cx88_ir_start(core, ir);
 
         /* all done */
-        err = ir_input_register(ir->input, ir_codes, NULL);
+        err = ir_input_register(ir->input, ir_codes, NULL, MODULE_NAME);
         if (err)
                 goto err_out_stop;
 
diff --git a/drivers/media/video/em28xx/em28xx-input.c b/drivers/media/video/em28xx/em28xx-input.c
index 20a0001e8885..32f376654c0c 100644
--- a/drivers/media/video/em28xx/em28xx-input.c
+++ b/drivers/media/video/em28xx/em28xx-input.c
@@ -39,6 +39,8 @@ static unsigned int ir_debug;
 module_param(ir_debug, int, 0644);
 MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
 
+#define MODULE_NAME "em28xx"
+
 #define i2cdprintk(fmt, arg...) \
         if (ir_debug) { \
                 printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \
@@ -474,7 +476,7 @@ int em28xx_ir_init(struct em28xx *dev)
 
         /* all done */
         err = ir_input_register(ir->input, dev->board.ir_codes,
-                                &ir->props);
+                                &ir->props, MODULE_NAME);
         if (err)
                 goto err_out_stop;
 
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
index da18d698e7f2..6af69d5c8499 100644
--- a/drivers/media/video/ir-kbd-i2c.c
+++ b/drivers/media/video/ir-kbd-i2c.c
@@ -61,9 +61,9 @@ module_param(hauppauge, int, 0644);    /* Choose Hauppauge remote */
 MODULE_PARM_DESC(hauppauge, "Specify Hauppauge remote: 0=black, 1=grey (defaults to 0)");
 
 
-#define DEVNAME "ir-kbd-i2c"
+#define MODULE_NAME "ir-kbd-i2c"
 #define dprintk(level, fmt, arg...)     if (debug >= level) \
-        printk(KERN_DEBUG DEVNAME ": " fmt , ## arg)
+        printk(KERN_DEBUG MODULE_NAME ": " fmt , ## arg)
 
 /* ----------------------------------------------------------------------- */
 
@@ -447,11 +447,11 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
         input_dev->name       = ir->name;
         input_dev->phys       = ir->phys;
 
-        err = ir_input_register(ir->input, ir->ir_codes, NULL);
+        err = ir_input_register(ir->input, ir->ir_codes, NULL, MODULE_NAME);
         if (err)
                 goto err_out_free;
 
-        printk(DEVNAME ": %s detected at %s [%s]\n",
+        printk(MODULE_NAME ": %s detected at %s [%s]\n",
                ir->input->name, ir->input->phys, adap->name);
 
         /* start polling via eventd */
diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c
index a2b16693ee9a..c1fe7c9369b2 100644
--- a/drivers/media/video/saa7134/saa7134-input.c
+++ b/drivers/media/video/saa7134/saa7134-input.c
@@ -28,6 +28,8 @@
 #include "saa7134-reg.h"
 #include "saa7134.h"
 
+#define MODULE_NAME "saa7134"
+
 static unsigned int disable_ir;
 module_param(disable_ir, int, 0444);
 MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
@@ -730,7 +732,7 @@ int saa7134_input_init1(struct saa7134_dev *dev)
         dev->remote = ir;
         saa7134_ir_start(dev, ir);
 
-        err = ir_input_register(ir->dev, ir_codes, NULL);
+        err = ir_input_register(ir->dev, ir_codes, NULL, MODULE_NAME);
         if (err)
                 goto err_out_stop;
 
diff --git a/include/media/ir-core.h b/include/media/ir-core.h
index 9ab8a7774223..1eae72d518e0 100644
--- a/include/media/ir-core.h
+++ b/include/media/ir-core.h
@@ -49,6 +49,7 @@ struct ir_dev_props {
 
 struct ir_input_dev {
         struct device                   dev;            /* device */
+        char                            *driver_name;   /* Name of the driver module */
         struct ir_scancode_table        rc_tab;         /* scan/key table */
         unsigned long                   devno;          /* device number */
         const struct ir_dev_props       *props;         /* Device properties */
@@ -62,7 +63,8 @@ u32 ir_g_keycode_from_table(struct input_dev *input_dev,
 
 int ir_input_register(struct input_dev *dev,
                       const struct ir_scancode_table *ir_codes,
-                      const struct ir_dev_props *props);
+                      const struct ir_dev_props *props,
+                      const char *driver_name);
 void ir_input_unregister(struct input_dev *input_dev);
 
 /* Routines from ir-sysfs.c */