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authorHans Verkuil <hans.verkuil@cisco.com>2013-03-08 11:22:03 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-03-24 12:02:59 -0300
commita0fc58868bbf34d0935947cdf1bc8c0ea32c68c4 (patch)
treefd7f5780ea9400cf4f859b846ea9b6a2c81d034b
parent9ca5470cc1433200698a43de2d6e683815e536e6 (diff)
[media] saa7115: add config flag to change the IDQ polarity
Needed by the go7007 driver: it assumes a different polarity of the IDQ signal, so we need to be able to tell the saa7115 about this. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/i2c/saa7115.c6
-rw-r--r--include/media/saa7115.h31
2 files changed, 27 insertions, 10 deletions
diff --git a/drivers/media/i2c/saa7115.c b/drivers/media/i2c/saa7115.c
index 5d9d0330b3df..c3e7e12e006a 100644
--- a/drivers/media/i2c/saa7115.c
+++ b/drivers/media/i2c/saa7115.c
@@ -1259,6 +1259,12 @@ static int saa711x_s_routing(struct v4l2_subdev *sd,
(saa711x_read(sd, R_83_X_PORT_I_O_ENA_AND_OUT_CLK) & 0xfe) |
(state->output & 0x01));
}
+ if (state->ident > V4L2_IDENT_SAA7111A) {
+ if (config & SAA7115_IDQ_IS_DEFAULT)
+ saa711x_write(sd, R_85_I_PORT_SIGNAL_POLAR, 0x20);
+ else
+ saa711x_write(sd, R_85_I_PORT_SIGNAL_POLAR, 0x21);
+ }
return 0;
}
diff --git a/include/media/saa7115.h b/include/media/saa7115.h
index bab212719591..8b2ecc69a702 100644
--- a/include/media/saa7115.h
+++ b/include/media/saa7115.h
@@ -21,6 +21,8 @@
#ifndef _SAA7115_H_
#define _SAA7115_H_
+/* s_routing inputs, outputs, and config */
+
/* SAA7111/3/4/5 HW inputs */
#define SAA7115_COMPOSITE0 0
#define SAA7115_COMPOSITE1 1
@@ -33,24 +35,33 @@
#define SAA7115_SVIDEO2 8
#define SAA7115_SVIDEO3 9
-/* SAA7115 v4l2_crystal_freq frequency values */
-#define SAA7115_FREQ_32_11_MHZ 32110000 /* 32.11 MHz crystal, SAA7114/5 only */
-#define SAA7115_FREQ_24_576_MHZ 24576000 /* 24.576 MHz crystal */
-
-/* SAA7115 v4l2_crystal_freq audio clock control flags */
-#define SAA7115_FREQ_FL_UCGC (1 << 0) /* SA 3A[7], UCGC, SAA7115 only */
-#define SAA7115_FREQ_FL_CGCDIV (1 << 1) /* SA 3A[6], CGCDIV, SAA7115 only */
-#define SAA7115_FREQ_FL_APLL (1 << 2) /* SA 3A[3], APLL, SAA7114/5 only */
-
+/* outputs */
#define SAA7115_IPORT_ON 1
#define SAA7115_IPORT_OFF 0
-/* SAA7111 specific output flags */
+/* SAA7111 specific outputs. */
#define SAA7111_VBI_BYPASS 2
#define SAA7111_FMT_YUV422 0x00
#define SAA7111_FMT_RGB 0x40
#define SAA7111_FMT_CCIR 0x80
#define SAA7111_FMT_YUV411 0xc0
+/* config flags */
+/* Register 0x85 should set bit 0 to 0 (it's 1 by default). This bit
+ * controls the IDQ signal polarity which is set to 'inverted' if the bit
+ * it 1 and to 'default' if it is 0. */
+#define SAA7115_IDQ_IS_DEFAULT (1 << 0)
+
+/* s_crystal_freq values and flags */
+
+/* SAA7115 v4l2_crystal_freq frequency values */
+#define SAA7115_FREQ_32_11_MHZ 32110000 /* 32.11 MHz crystal, SAA7114/5 only */
+#define SAA7115_FREQ_24_576_MHZ 24576000 /* 24.576 MHz crystal */
+
+/* SAA7115 v4l2_crystal_freq audio clock control flags */
+#define SAA7115_FREQ_FL_UCGC (1 << 0) /* SA 3A[7], UCGC, SAA7115 only */
+#define SAA7115_FREQ_FL_CGCDIV (1 << 1) /* SA 3A[6], CGCDIV, SAA7115 only */
+#define SAA7115_FREQ_FL_APLL (1 << 2) /* SA 3A[3], APLL, SAA7114/5 only */
+
#endif