V4L/DVB (12251): v4l: dm644x ccdc module for vpfe capture driver

This is the hw module for DM644x CCDC. This registers with the
vpfe capture driver and provides a set of hw_ops to configure
CCDC for a specific decoder device connected to the VPFE.

Reviewed by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed by: Laurent Pinchart <laurent.pinchart@skynet.be>

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

1 files changed, 184 insertions, 0 deletions

diff --git a/include/media/davinci/dm644x_ccdc.h b/include/media/davinci/dm644x_ccdc.h
new file mode 100644
index 000000000000..3e178eb52fb3
--- /dev/null
+++ b/include/media/davinci/dm644x_ccdc.h
@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2006-2009 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 _DM644X_CCDC_H
+#define _DM644X_CCDC_H
+#include <media/davinci/ccdc_types.h>
+#include <media/davinci/vpfe_types.h>
+
+/* enum for No of pixel per line to be avg. in Black Clamping*/
+enum ccdc_sample_length {
+        CCDC_SAMPLE_1PIXELS,
+        CCDC_SAMPLE_2PIXELS,
+        CCDC_SAMPLE_4PIXELS,
+        CCDC_SAMPLE_8PIXELS,
+        CCDC_SAMPLE_16PIXELS
+};
+
+/* enum for No of lines in Black Clamping */
+enum ccdc_sample_line {
+        CCDC_SAMPLE_1LINES,
+        CCDC_SAMPLE_2LINES,
+        CCDC_SAMPLE_4LINES,
+        CCDC_SAMPLE_8LINES,
+        CCDC_SAMPLE_16LINES
+};
+
+/* enum for Alaw gama width */
+enum ccdc_gama_width {
+        CCDC_GAMMA_BITS_15_6,
+        CCDC_GAMMA_BITS_14_5,
+        CCDC_GAMMA_BITS_13_4,
+        CCDC_GAMMA_BITS_12_3,
+        CCDC_GAMMA_BITS_11_2,
+        CCDC_GAMMA_BITS_10_1,
+        CCDC_GAMMA_BITS_09_0
+};
+
+enum ccdc_data_size {
+        CCDC_DATA_16BITS,
+        CCDC_DATA_15BITS,
+        CCDC_DATA_14BITS,
+        CCDC_DATA_13BITS,
+        CCDC_DATA_12BITS,
+        CCDC_DATA_11BITS,
+        CCDC_DATA_10BITS,
+        CCDC_DATA_8BITS
+};
+
+/* structure for ALaw */
+struct ccdc_a_law {
+        /* Enable/disable A-Law */
+        unsigned char enable;
+        /* Gama Width Input */
+        enum ccdc_gama_width gama_wd;
+};
+
+/* structure for Black Clamping */
+struct ccdc_black_clamp {
+        unsigned char enable;
+        /* only if bClampEnable is TRUE */
+        enum ccdc_sample_length sample_pixel;
+        /* only if bClampEnable is TRUE */
+        enum ccdc_sample_line sample_ln;
+        /* only if bClampEnable is TRUE */
+        unsigned short start_pixel;
+        /* only if bClampEnable is TRUE */
+        unsigned short sgain;
+        /* only if bClampEnable is FALSE */
+        unsigned short dc_sub;
+};
+
+/* structure for Black Level Compensation */
+struct ccdc_black_compensation {
+        /* Constant value to subtract from Red component */
+        char r;
+        /* Constant value to subtract from Gr component */
+        char gr;
+        /* Constant value to subtract from Blue component */
+        char b;
+        /* Constant value to subtract from Gb component */
+        char gb;
+};
+
+/* structure for fault pixel correction */
+struct ccdc_fault_pixel {
+        /* Enable or Disable fault pixel correction */
+        unsigned char enable;
+        /* Number of fault pixel */
+        unsigned short fp_num;
+        /* Address of fault pixel table */
+        unsigned int fpc_table_addr;
+};
+
+/* Structure for CCDC configuration parameters for raw capture mode passed
+ * by application
+ */
+struct ccdc_config_params_raw {
+        /* data size value from 8 to 16 bits */
+        enum ccdc_data_size data_sz;
+        /* Structure for Optional A-Law */
+        struct ccdc_a_law alaw;
+        /* Structure for Optical Black Clamp */
+        struct ccdc_black_clamp blk_clamp;
+        /* Structure for Black Compensation */
+        struct ccdc_black_compensation blk_comp;
+        /* Structure for Fault Pixel Module Configuration */
+        struct ccdc_fault_pixel fault_pxl;
+};
+
+
+#ifdef __KERNEL__
+#include <linux/io.h>
+/* Define to enable/disable video port */
+#define FP_NUM_BYTES            4
+/* Define for extra pixel/line and extra lines/frame */
+#define NUM_EXTRAPIXELS         8
+#define NUM_EXTRALINES          8
+
+/* settings for commonly used video formats */
+#define CCDC_WIN_PAL     {0, 0, 720, 576}
+/* ntsc square pixel */
+#define CCDC_WIN_VGA    {0, 0, (640 + NUM_EXTRAPIXELS), (480 + NUM_EXTRALINES)}
+
+/* Structure for CCDC configuration parameters for raw capture mode */
+struct ccdc_params_raw {
+        /* pixel format */
+        enum ccdc_pixfmt pix_fmt;
+        /* progressive or interlaced frame */
+        enum ccdc_frmfmt frm_fmt;
+        /* video window */
+        struct v4l2_rect win;
+        /* field id polarity */
+        enum vpfe_pin_pol fid_pol;
+        /* vertical sync polarity */
+        enum vpfe_pin_pol vd_pol;
+        /* horizontal sync polarity */
+        enum vpfe_pin_pol hd_pol;
+        /* interleaved or separated fields */
+        enum ccdc_buftype buf_type;
+        /*
+         * enable to store the image in inverse
+         * order in memory(bottom to top)
+         */
+        unsigned char image_invert_enable;
+        /* configurable paramaters */
+        struct ccdc_config_params_raw config_params;
+};
+
+struct ccdc_params_ycbcr {
+        /* pixel format */
+        enum ccdc_pixfmt pix_fmt;
+        /* progressive or interlaced frame */
+        enum ccdc_frmfmt frm_fmt;
+        /* video window */
+        struct v4l2_rect win;
+        /* field id polarity */
+        enum vpfe_pin_pol fid_pol;
+        /* vertical sync polarity */
+        enum vpfe_pin_pol vd_pol;
+        /* horizontal sync polarity */
+        enum vpfe_pin_pol hd_pol;
+        /* enable BT.656 embedded sync mode */
+        int bt656_enable;
+        /* cb:y:cr:y or y:cb:y:cr in memory */
+        enum ccdc_pixorder pix_order;
+        /* interleaved or separated fields  */
+        enum ccdc_buftype buf_type;
+};
+#endif
+#endif                          /* _DM644X_CCDC_H */