V4L/DVB (5902): Add ivtv-fb framebuffer driver.

Add the ivtv-fb framebuffer driver for cx23415 devices (currently
only the Hauppauge PVR-350 cards). This makes it possible to use
the On-Screen Display functionality of these cards, either for menus
during MPEG playback, or as a console or X display.

Signed-off-by: Kevin Thayer <nufan_wfk@yahoo.com>
Signed-off-by: Chris Kennedy <c@groovy.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: John P Harvey <john.p.harvey@btinternet.com>
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 13 insertions, 2 deletions

diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c
index 622af634104e..81cbaf7dd51c 100644
--- a/drivers/media/video/ivtv/ivtv-driver.c
+++ b/drivers/media/video/ivtv/ivtv-driver.c
@@ -95,8 +95,14 @@ const u32 yuv_offset[4] = {
 
 /* Parameter declarations */
 static int cardtype[IVTV_MAX_CARDS];
-static int tuner[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
-static int radio[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
+static int tuner[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
+                                     -1, -1, -1, -1, -1, -1, -1, -1,
+                                     -1, -1, -1, -1, -1, -1, -1, -1,
+                                     -1, -1, -1, -1, -1, -1, -1, -1 };
+static int radio[IVTV_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
+                                     -1, -1, -1, -1, -1, -1, -1, -1,
+                                     -1, -1, -1, -1, -1, -1, -1, -1,
+                                     -1, -1, -1, -1, -1, -1, -1, -1 };
 
 static int cardtype_c = 1;
 static int tuner_c = 1;
@@ -1242,8 +1248,10 @@ static int __devinit ivtv_probe(struct pci_dev *dev,
                 retval = -ENODEV;
         IVTV_ERR("Error %d on initialization\n", retval);
 
+        spin_lock(&ivtv_cards_lock);
         kfree(ivtv_cards[ivtv_cards_active]);
         ivtv_cards[ivtv_cards_active] = NULL;
+        spin_unlock(&ivtv_cards_lock);
         return retval;
 }
 
@@ -1346,6 +1354,7 @@ static void module_cleanup(void)
 
         pci_unregister_driver(&ivtv_pci_driver);
 
+        spin_lock(&ivtv_cards_lock);
         for (i = 0; i < ivtv_cards_active; i++) {
                 if (ivtv_cards[i] == NULL)
                         continue;
@@ -1354,6 +1363,7 @@ static void module_cleanup(void)
                 }
                 kfree(ivtv_cards[i]);
         }
+        spin_unlock(&ivtv_cards_lock);
 }
 
 /* Note: These symbols are exported because they are used by the ivtv-fb
@@ -1361,6 +1371,7 @@ static void module_cleanup(void)
 EXPORT_SYMBOL(ivtv_set_irq_mask);
 EXPORT_SYMBOL(ivtv_cards_active);
 EXPORT_SYMBOL(ivtv_cards);
+EXPORT_SYMBOL(ivtv_cards_lock);
 EXPORT_SYMBOL(ivtv_api);
 EXPORT_SYMBOL(ivtv_vapi);
 EXPORT_SYMBOL(ivtv_vapi_result);