[media] davinci vpbe: V4L2 display driver for DM644X SoC

This is the display driver for Texas Instruments's DM644X family
SoC. This patch contains the main implementation of the driver with the
V4L2 interface. The driver implements the streaming model with
support for both kernel allocated buffers and user pointers. It also
implements all of the necessary IOCTLs necessary and supported by the
video display device.

Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Acked-by: Muralidharan Karicheri <m-karicheri2@ti.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/include/media/davinci/vpbe_types.h b/include/media/davinci/vpbe_types.h
new file mode 100644
index 000000000000..727f55170e41
--- /dev/null
+++ b/include/media/davinci/vpbe_types.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2010 Texas Instruments Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 2.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _VPBE_TYPES_H
+#define _VPBE_TYPES_H
+
+enum vpbe_version {
+	VPBE_VERSION_1 = 1,
+	VPBE_VERSION_2,
+	VPBE_VERSION_3,
+};
+
+/* vpbe_timing_type - Timing types used in vpbe device */
+enum vpbe_enc_timings_type {
+	VPBE_ENC_STD = 0x1,
+	VPBE_ENC_DV_PRESET = 0x2,
+	VPBE_ENC_CUSTOM_TIMINGS = 0x4,
+	/* Used when set timings through FB device interface */
+	VPBE_ENC_TIMINGS_INVALID = 0x8,
+};
+
+union vpbe_timings {
+	v4l2_std_id std_id;
+	unsigned int dv_preset;
+};
+
+/*
+ * struct vpbe_enc_mode_info
+ * @name: ptr to name string of the standard, "NTSC", "PAL" etc
+ * @std: standard or non-standard mode. 1 - standard, 0 - nonstandard
+ * @interlaced: 1 - interlaced, 0 - non interlaced/progressive
+ * @xres: x or horizontal resolution of the display
+ * @yres: y or vertical resolution of the display
+ * @fps: frame per second
+ * @left_margin: left margin of the display
+ * @right_margin: right margin of the display
+ * @upper_margin: upper margin of the display
+ * @lower_margin: lower margin of the display
+ * @hsync_len: h-sync length
+ * @vsync_len: v-sync length
+ * @flags: bit field: bit usage is documented below
+ *
+ * Description:
+ *  Structure holding timing and resolution information of a standard.
+ * Used by vpbe_device to set required non-standard timing in the
+ * venc when lcd controller output is connected to a external encoder.
+ * A table of timings is maintained in vpbe device to set this in
+ * venc when external encoder is connected to lcd controller output.
+ * Encoder may provide a g_dv_timings() API to override these values
+ * as needed.
+ *
+ *  Notes
+ *  ------
+ *  if_type should be used only by encoder manager and encoder.
+ *  flags usage
+ *     b0 (LSB) - hsync polarity, 0 - negative, 1 - positive
+ *     b1       - vsync polarity, 0 - negative, 1 - positive
+ *     b2       - field id polarity, 0 - negative, 1  - positive
+ */
+struct vpbe_enc_mode_info {
+	unsigned char *name;
+	enum vpbe_enc_timings_type timings_type;
+	union vpbe_timings timings;
+	unsigned int interlaced;
+	unsigned int xres;
+	unsigned int yres;
+	struct v4l2_fract aspect;
+	struct v4l2_fract fps;
+	unsigned int left_margin;
+	unsigned int right_margin;
+	unsigned int upper_margin;
+	unsigned int lower_margin;
+	unsigned int hsync_len;
+	unsigned int vsync_len;
+	unsigned int flags;
+};
+
+#endif