V4L/DVB (12250): v4l: dm355 ccdc module for vpfe capture driver

Adds ccdc hw module for DM355 CCDC. This registers with the bridge
driver a set of hw_ops for configuring the CCDC for a specific
decoder device connected to vpfe.

Reviewed by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed by: Laurent Pinchart <laurent.pinchart@skynet.be>
Reviewed by: Mauro Carvalho Chehab <mchehab@infradead.org>

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, 321 insertions, 0 deletions

diff --git a/include/media/davinci/dm355_ccdc.h b/include/media/davinci/dm355_ccdc.h
new file mode 100644
index 000000000000..df8a7b107477
--- /dev/null
+++ b/include/media/davinci/dm355_ccdc.h
@@ -0,0 +1,321 @@
+/*
+ * Copyright (C) 2005-2009 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 _DM355_CCDC_H
+#define _DM355_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_gamma_width {
+        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_colpats {
+        CCDC_RED,
+        CCDC_GREEN_RED,
+        CCDC_GREEN_BLUE,
+        CCDC_BLUE
+};
+
+struct ccdc_col_pat {
+        enum ccdc_colpats olop;
+        enum ccdc_colpats olep;
+        enum ccdc_colpats elop;
+        enum ccdc_colpats elep;
+};
+
+enum ccdc_datasft {
+        CCDC_DATA_NO_SHIFT,
+        CCDC_DATA_SHIFT_1BIT,
+        CCDC_DATA_SHIFT_2BIT,
+        CCDC_DATA_SHIFT_3BIT,
+        CCDC_DATA_SHIFT_4BIT,
+        CCDC_DATA_SHIFT_5BIT,
+        CCDC_DATA_SHIFT_6BIT
+};
+
+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
+};
+enum ccdc_mfilt1 {
+        CCDC_NO_MEDIAN_FILTER1,
+        CCDC_AVERAGE_FILTER1,
+        CCDC_MEDIAN_FILTER1
+};
+
+enum ccdc_mfilt2 {
+        CCDC_NO_MEDIAN_FILTER2,
+        CCDC_AVERAGE_FILTER2,
+        CCDC_MEDIAN_FILTER2
+};
+
+/* structure for ALaw */
+struct ccdc_a_law {
+        /* Enable/disable A-Law */
+        unsigned char enable;
+        /* Gama Width Input */
+        enum ccdc_gamma_width gama_wd;
+};
+
+/* structure for Black Clamping */
+struct ccdc_black_clamp {
+        /* only if bClampEnable is TRUE */
+        unsigned char b_clamp_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 FALSE */
+        unsigned short sgain;
+        unsigned short dc_sub;
+};
+
+/* structure for Black Level Compensation */
+struct ccdc_black_compensation {
+        /* Constant value to subtract from Red component */
+        unsigned char r;
+        /* Constant value to subtract from Gr component */
+        unsigned char gr;
+        /* Constant value to subtract from Blue component */
+        unsigned char b;
+        /* Constant value to subtract from Gb component */
+        unsigned char gb;
+};
+
+struct ccdc_float {
+        int integer;
+        unsigned int decimal;
+};
+
+#define CCDC_CSC_COEFF_TABLE_SIZE       16
+/* structure for color space converter */
+struct ccdc_csc {
+        unsigned char enable;
+        /*
+         * S8Q5. Use 2 decimal precision, user values range from -3.00 to 3.99.
+         * example - to use 1.03, set integer part as 1, and decimal part as 3
+         * to use -1.03, set integer part as -1 and decimal part as 3
+         */
+        struct ccdc_float coeff[CCDC_CSC_COEFF_TABLE_SIZE];
+};
+
+/* Structures for Vertical Defect Correction*/
+enum ccdc_vdf_csl {
+        CCDC_VDF_NORMAL,
+        CCDC_VDF_HORZ_INTERPOL_SAT,
+        CCDC_VDF_HORZ_INTERPOL
+};
+
+enum ccdc_vdf_cuda {
+        CCDC_VDF_WHOLE_LINE_CORRECT,
+        CCDC_VDF_UPPER_DISABLE
+};
+
+enum ccdc_dfc_mwr {
+        CCDC_DFC_MWR_WRITE_COMPLETE,
+        CCDC_DFC_WRITE_REG
+};
+
+enum ccdc_dfc_mrd {
+        CCDC_DFC_READ_COMPLETE,
+        CCDC_DFC_READ_REG
+};
+
+enum ccdc_dfc_ma_rst {
+        CCDC_DFC_INCR_ADDR,
+        CCDC_DFC_CLR_ADDR
+};
+
+enum ccdc_dfc_mclr {
+        CCDC_DFC_CLEAR_COMPLETE,
+        CCDC_DFC_CLEAR
+};
+
+struct ccdc_dft_corr_ctl {
+        enum ccdc_vdf_csl vdfcsl;
+        enum ccdc_vdf_cuda vdfcuda;
+        unsigned int vdflsft;
+};
+
+struct ccdc_dft_corr_mem_ctl {
+        enum ccdc_dfc_mwr dfcmwr;
+        enum ccdc_dfc_mrd dfcmrd;
+        enum ccdc_dfc_ma_rst dfcmarst;
+        enum ccdc_dfc_mclr dfcmclr;
+};
+
+#define CCDC_DFT_TABLE_SIZE     16
+/*
+ * Main Structure for vertical defect correction. Vertical defect
+ * correction can correct upto 16 defects if defects less than 16
+ * then pad the rest with 0
+ */
+struct ccdc_vertical_dft {
+        unsigned char ver_dft_en;
+        unsigned char gen_dft_en;
+        unsigned int saturation_ctl;
+        struct ccdc_dft_corr_ctl dft_corr_ctl;
+        struct ccdc_dft_corr_mem_ctl dft_corr_mem_ctl;
+        int table_size;
+        unsigned int dft_corr_horz[CCDC_DFT_TABLE_SIZE];
+        unsigned int dft_corr_vert[CCDC_DFT_TABLE_SIZE];
+        unsigned int dft_corr_sub1[CCDC_DFT_TABLE_SIZE];
+        unsigned int dft_corr_sub2[CCDC_DFT_TABLE_SIZE];
+        unsigned int dft_corr_sub3[CCDC_DFT_TABLE_SIZE];
+};
+
+struct ccdc_data_offset {
+        unsigned char horz_offset;
+        unsigned char vert_offset;
+};
+
+/*
+ * Structure for CCDC configuration parameters for raw capture mode passed
+ * by application
+ */
+struct ccdc_config_params_raw {
+        /* data shift to be applied before storing */
+        enum ccdc_datasft datasft;
+        /* data size value from 8 to 16 bits */
+        enum ccdc_data_size data_sz;
+        /* median filter for sdram */
+        enum ccdc_mfilt1 mfilt1;
+        enum ccdc_mfilt2 mfilt2;
+        /* low pass filter enable/disable */
+        unsigned char lpf_enable;
+        /* Threshold of median filter */
+        int med_filt_thres;
+        /*
+         * horz and vertical data offset. Appliable for defect correction
+         * and lsc
+         */
+        struct ccdc_data_offset data_offset;
+        /* 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;
+        /* struture for vertical Defect Correction Module Configuration */
+        struct ccdc_vertical_dft vertical_dft;
+        /* structure for color space converter Module Configuration */
+        struct ccdc_csc csc;
+        /* color patters for bayer capture */
+        struct ccdc_col_pat col_pat_field0;
+        struct ccdc_col_pat col_pat_field1;
+};
+
+#ifdef __KERNEL__
+#include <linux/io.h>
+
+#define CCDC_WIN_PAL    {0, 0, 720, 576}
+#define CCDC_WIN_VGA    {0, 0, 640, 480}
+
+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;
+};
+
+/* Gain applied to Raw Bayer data */
+struct ccdc_gain {
+        unsigned short r_ye;
+        unsigned short gr_cy;
+        unsigned short gb_g;
+        unsigned short b_mg;
+};
+
+/* 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;
+        /* Gain values */
+        struct ccdc_gain gain;
+        /* offset */
+        unsigned int ccdc_offset;
+        /* horizontal flip enable */
+        unsigned char horz_flip_enable;
+        /*
+         * enable to store the image in inverse order in memory
+         * (bottom to top)
+         */
+        unsigned char image_invert_enable;
+        /* Configurable part of raw data */
+        struct ccdc_config_params_raw config_params;
+};
+
+#endif
+#endif                          /* DM355_CCDC_H */