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authorJonathan Corbet <corbet@lwn.net>2010-10-19 21:32:11 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-10-21 13:45:28 -0200
commit024fafbac36b176d978ccd0fb1cae1fbc38c7fee (patch)
tree02b52bf8c6104ab4a8f7bcdf87741aee4b219f3b /drivers/video/via
parentdc4589c814a3a50a4cfc2077690fc7fd397308c8 (diff)
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[media] Add the via framebuffer camera controller driver
Add a driver for the video capture port on VIA integrated chipsets. This version has a remaining OLPCism or two and expects to be talking to an ov7670; those can be improved as the need arises. This work was supported by the One Laptop Per Child project. Thanks to Laurent Pinchart for a number of useful comments. Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/video/via')
-rw-r--r--drivers/video/via/accel.c2
-rw-r--r--drivers/video/via/via-core.c16
2 files changed, 15 insertions, 3 deletions
diff --git a/drivers/video/via/accel.c b/drivers/video/via/accel.c
index e44893ea590d..04bec058569c 100644
--- a/drivers/video/via/accel.c
+++ b/drivers/video/via/accel.c
@@ -370,7 +370,7 @@ int viafb_init_engine(struct fb_info *info)
viapar->shared->vq_vram_addr = viapar->fbmem_free;
viapar->fbmem_used += VQ_SIZE;
-#if defined(CONFIG_FB_VIA_CAMERA) || defined(CONFIG_FB_VIA_CAMERA_MODULE)
+#if defined(CONFIG_VIDEO_VIA_CAMERA) || defined(CONFIG_VIDEO_VIA_CAMERA_MODULE)
/*
* Set aside a chunk of framebuffer memory for the camera
* driver. Someday this driver probably needs a proper allocator
diff --git a/drivers/video/via/via-core.c b/drivers/video/via/via-core.c
index 66f403033111..27d7260d4f50 100644
--- a/drivers/video/via/via-core.c
+++ b/drivers/video/via/via-core.c
@@ -95,6 +95,13 @@ EXPORT_SYMBOL_GPL(viafb_irq_disable);
/* ---------------------------------------------------------------------- */
/*
+ * Currently, the camera driver is the only user of the DMA code, so we
+ * only compile it in if the camera driver is being built. Chances are,
+ * most viafb systems will not need to have this extra code for a while.
+ * As soon as another user comes long, the ifdef can be removed.
+ */
+#if defined(CONFIG_VIDEO_VIA_CAMERA) || defined(CONFIG_VIDEO_VIA_CAMERA_MODULE)
+/*
* Access to the DMA engine. This currently provides what the camera
* driver needs (i.e. outgoing only) but is easily expandable if need
* be.
@@ -322,7 +329,7 @@ int viafb_dma_copy_out_sg(unsigned int offset, struct scatterlist *sg, int nsg)
return 0;
}
EXPORT_SYMBOL_GPL(viafb_dma_copy_out_sg);
-
+#endif /* CONFIG_VIDEO_VIA_CAMERA */
/* ---------------------------------------------------------------------- */
/*
@@ -507,7 +514,12 @@ static struct viafb_subdev_info {
},
{
.name = "viafb-i2c",
- }
+ },
+#if defined(CONFIG_VIDEO_VIA_CAMERA) || defined(CONFIG_VIDEO_VIA_CAMERA_MODULE)
+ {
+ .name = "viafb-camera",
+ },
+#endif
};
#define N_SUBDEVS ARRAY_SIZE(viafb_subdevs)