Hi Manjunath, few more comments below.. On 08/29/2011 05:07 PM, Manjunath Hadli wrote: > add support for ccdc on dm365 SoC. ccdc is responsible for > capturing video data- both raw bayer through sync seperate > signals and through BT656/1120 interfaces. This driver implements > the hardware functionality. Mainly- setting of hardware, validation > of parameters, and isr configuration. > > Signed-off-by: Manjunath Hadli<manjunath.hadli@xxxxxx> > Signed-off-by: Nagabhushana Netagunte<nagabhushana.netagunte@xxxxxx> > --- > drivers/media/video/davinci/ccdc_types.h | 43 + > drivers/media/video/davinci/dm365_ccdc.c | 1519 +++++++++++++++++++++++++ > drivers/media/video/davinci/dm365_ccdc.h | 88 ++ > drivers/media/video/davinci/dm365_ccdc_regs.h | 309 +++++ > include/linux/dm365_ccdc.h | 664 +++++++++++ > 5 files changed, 2623 insertions(+), 0 deletions(-) > create mode 100644 drivers/media/video/davinci/ccdc_types.h > create mode 100644 drivers/media/video/davinci/dm365_ccdc.c > create mode 100644 drivers/media/video/davinci/dm365_ccdc.h > create mode 100644 drivers/media/video/davinci/dm365_ccdc_regs.h > create mode 100644 include/linux/dm365_ccdc.h ... > +#define CCDC_LINEAR_LUT0_ADDR 0x1c7c000 > +#define CCDC_LINEAR_LUT1_ADDR 0x1c7c400 > + > +/* Masks& Shifts below */ > +#define START_PX_HOR_MASK (0x7fff) > +#define NUM_PX_HOR_MASK (0x7fff) > +#define START_VER_ONE_MASK (0x7fff) > +#define START_VER_TWO_MASK (0x7fff) > +#define NUM_LINES_VER (0x7fff) > + > +/* gain - offset masks */ > +#define GAIN_INTEGER_MASK (0x7) > +#define GAIN_INTEGER_SHIFT (0x9) > +#define GAIN_DECIMAL_MASK (0x1ff) > +#define OFFSET_MASK (0xfff) > +#define GAIN_SDRAM_EN_SHIFT (12) > +#define GAIN_IPIPE_EN_SHIFT (13) > +#define GAIN_H3A_EN_SHIFT (14) > +#define OFST_SDRAM_EN_SHIFT (8) > +#define OFST_IPIPE_EN_SHIFT (9) > +#define OFST_H3A_EN_SHIFT (10) > +#define GAIN_OFFSET_EN_MASK (0x7700) > + > +/* Culling */ > +#define CULL_PAT_EVEN_LINE_SHIFT (8) > + > +/* CCDCFG register */ > +#define CCDC_YCINSWP_RAW (0x00<< 4) > +#define CCDC_YCINSWP_YCBCR (0x01<< 4) > +#define CCDC_CCDCFG_FIDMD_LATCH_VSYNC (0x00<< 6) > +#define CCDC_CCDCFG_WENLOG_AND (0x00<< 8) > +#define CCDC_CCDCFG_TRGSEL_WEN (0x00<< 9) > +#define CCDC_CCDCFG_EXTRG_DISABLE (0x00<< 10) > +#define CCDC_LATCH_ON_VSYNC_DISABLE (0x01<< 15) > +#define CCDC_LATCH_ON_VSYNC_ENABLE (0x00<< 15) > +#define CCDC_DATA_PACK_MASK (0x03) > +#define CCDC_DATA_PACK16 (0x0) > +#define CCDC_DATA_PACK12 (0x1) > +#define CCDC_DATA_PACK8 (0x2) > +#define CCDC_PIX_ORDER_SHIFT (11) > +#define CCDC_PIX_ORDER_MASK (0x01) > +#define CCDC_BW656_ENABLE (0x01<< 5) > + > +/* MODESET registers */ > +#define CCDC_VDHDOUT_INPUT (0x00<< 0) > +#define CCDC_INPUT_MASK (0x03) > +#define CCDC_INPUT_SHIFT (12) > +#define CCDC_RAW_INPUT_MODE (0x00) > +#define CCDC_FID_POL_MASK (0x01) > +#define CCDC_FID_POL_SHIFT (4) > +#define CCDC_HD_POL_MASK (0x01) > +#define CCDC_HD_POL_SHIFT (3) > +#define CCDC_VD_POL_MASK (0x01) > +#define CCDC_VD_POL_SHIFT (2) > +#define CCDC_DATAPOL_NORMAL (0x00) > +#define CCDC_DATAPOL_MASK (0x01) > +#define CCDC_DATAPOL_SHIFT (6) > +#define CCDC_EXWEN_DISABLE (0x00) > +#define CCDC_EXWEN_MASK (0x01) > +#define CCDC_EXWEN_SHIFT (5) > +#define CCDC_FRM_FMT_MASK (0x01) > +#define CCDC_FRM_FMT_SHIFT (7) > +#define CCDC_DATASFT_MASK (0x07) > +#define CCDC_DATASFT_SHIFT (8) > +#define CCDC_LPF_SHIFT (14) > +#define CCDC_LPF_MASK (0x1) > + > +/* GAMMAWD registers */ > +#define CCDC_ALAW_GAMA_WD_MASK (0xf) > +#define CCDC_ALAW_GAMA_WD_SHIFT (1) > +#define CCDC_ALAW_ENABLE (0x01) > +#define CCDC_GAMMAWD_CFA_MASK (0x01) > +#define CCDC_GAMMAWD_CFA_SHIFT (5) > + > +/* HSIZE registers */ > +#define CCDC_HSIZE_FLIP_MASK (0x01) > +#define CCDC_HSIZE_FLIP_SHIFT (12) > +#define CCDC_LINEOFST_MASK (0xfff) > + > +/* MISC registers */ > +#define CCDC_DPCM_EN_SHIFT (12) > +#define CCDC_DPCM_EN_MASK (1) > +#define CCDC_DPCM_PREDICTOR_SHIFT (13) > +#define CCDC_DPCM_PREDICTOR_MASK (1) > + > +/* Black clamp related */ > +#define CCDC_BC_DCOFFSET_MASK (0x1fff) > +#define CCDC_BC_MODE_COLOR_MASK (1) > +#define CCDC_BC_MODE_COLOR_SHIFT (4) > +#define CCDC_HORZ_BC_MODE_MASK (3) > +#define CCDC_HORZ_BC_MODE_SHIFT (1) > +#define CCDC_HORZ_BC_WIN_COUNT_MASK (0x1f) > +#define CCDC_HORZ_BC_WIN_SEL_SHIFT (5) > +#define CCDC_HORZ_BC_PIX_LIMIT_SHIFT (6) > +#define CCDC_HORZ_BC_WIN_H_SIZE_MASK (3) > +#define CCDC_HORZ_BC_WIN_H_SIZE_SHIFT (8) > +#define CCDC_HORZ_BC_WIN_V_SIZE_MASK (3) > +#define CCDC_HORZ_BC_WIN_V_SIZE_SHIFT (12) > +#define CCDC_HORZ_BC_WIN_START_H_MASK (0x1fff) > +#define CCDC_HORZ_BC_WIN_START_V_MASK (0x1fff) > +#define CCDC_VERT_BC_OB_H_SZ_MASK (7) > +#define CCDC_VERT_BC_RST_VAL_SEL_MASK (3) > +#define CCDC_VERT_BC_RST_VAL_SEL_SHIFT (4) > +#define CCDC_VERT_BC_LINE_AVE_COEF_SHIFT (8) > +#define CCDC_VERT_BC_OB_START_HORZ_MASK (0x1fff) > +#define CCDC_VERT_BC_OB_START_VERT_MASK (0x1fff) > +#define CCDC_VERT_BC_OB_VERT_SZ_MASK (0x1fff) > +#define CCDC_VERT_BC_RST_VAL_MASK (0xfff) > +#define CCDC_BC_VERT_START_SUB_V_MASK (0x1fff) > + > +/* VDFC registers */ > +#define CCDC_VDFC_EN_SHIFT (4) > +#define CCDC_VDFC_CORR_MOD_MASK (3) > +#define CCDC_VDFC_CORR_MOD_SHIFT (5) > +#define CCDC_VDFC_CORR_WHOLE_LN_SHIFT (7) > +#define CCDC_VDFC_LEVEL_SHFT_MASK (7) > +#define CCDC_VDFC_LEVEL_SHFT_SHIFT (8) > +#define CCDC_VDFC_SAT_LEVEL_MASK (0xfff) > +#define CCDC_VDFC_POS_MASK (0x1fff) > +#define CCDC_DFCMEMCTL_DFCMARST_SHIFT (2) > + > +/* CSC registers */ > +#define CCDC_CSC_COEF_INTEG_MASK (7) > +#define CCDC_CSC_COEF_DECIMAL_MASK (0x1f) > +#define CCDC_CSC_COEF_INTEG_SHIFT (5) > +#define CCDC_CSCM_MSB_SHIFT (8) > +#define CCDC_DF_CSC_SPH_MASK (0x1fff) > +#define CCDC_DF_CSC_LNH_MASK (0x1fff) > +#define CCDC_DF_CSC_SLV_MASK (0x1fff) > +#define CCDC_DF_CSC_LNV_MASK (0x1fff) > +#define CCDC_DF_NUMLINES (0x7fff) > +#define CCDC_DF_NUMPIX (0x1fff) > + > +/* Offsets for LSC/DFC/Gain */ > +#define CCDC_DATA_H_OFFSET_MASK (0x1fff) > +#define CCDC_DATA_V_OFFSET_MASK (0x1fff) > + > +/* Linearization */ > +#define CCDC_LIN_CORRSFT_MASK (7) > +#define CCDC_LIN_CORRSFT_SHIFT (4) > +#define CCDC_LIN_SCALE_FACT_INTEG_SHIFT (10) > +#define CCDC_LIN_SCALE_FACT_DECIMAL_MASK (0x3ff) > +#define CCDC_LIN_ENTRY_MASK (0x3ff) > + > +#define CCDC_DF_FMTRLEN_MASK (0x1fff) > +#define CCDC_DF_FMTHCNT_MASK (0x1fff) > + > +/* Pattern registers */ > +#define CCDC_PG_EN (1<< 3) > +#define CCDC_SEL_PG_SRC (3<< 4) > +#define CCDC_PG_VD_POL_SHIFT (0) > +#define CCDC_PG_HD_POL_SHIFT (1) > + > +/*masks and shifts*/ > +#define CCDC_SYNCEN_VDHDEN_MASK (1<< 0) > +#define CCDC_SYNCEN_WEN_MASK (1<< 1) > +#define CCDC_SYNCEN_WEN_SHIFT 1 > + > +#endif > diff --git a/include/linux/dm365_ccdc.h b/include/linux/dm365_ccdc.h > new file mode 100644 > index 0000000..4e50529 > --- /dev/null > +++ b/include/linux/dm365_ccdc.h > @@ -0,0 +1,664 @@ ... > +#define VPFE_CMD_S_CCDC_RAW_PARAMS _IOW('V', 1, \ > + struct ccdc_config_params_raw) > +#define VPFE_CMD_G_CCDC_RAW_PARAMS _IOR('V', 2, \ > + struct ccdc_config_params_raw) > +/** > + * ccdc float type S8Q8/U8Q8 > + */ > +struct ccdc_float_8 { > + /* 8 bit integer part */ > + unsigned char integer; > + /* 8 bit decimal part */ > + unsigned char decimal; > +}; Isn't it better to use explicit width type, like u8, u16, etc. ? Then we could just have: +struct ccdc_float_8 { + u8 integer; + u8 decimal; +}; > + > +/** > + * brief ccdc float type U16Q16/S16Q16 > + */ > +struct ccdc_float_16 { > + /* 16 bit integer part */ > + unsigned short integer; > + /* 16 bit decimal part */ > + unsigned short decimal; > +}; and +struct ccdc_float_16 { + u16 integer; + u16 decimal; +}; > + > +/* > + * ccdc image(target) window parameters > + */ > +struct ccdc_cropwin { > + /* horzontal offset of the top left corner in pixels */ > + unsigned int left; > + /* vertical offset of the top left corner in pixels */ > + unsigned int top; > + /* width in pixels of the rectangle */ > + unsigned int width; > + /* height in lines of the rectangle */ > + unsigned int height; > +}; How about using struct v4l2_rect instead ? ... > +/** > + * CCDC image data size > + */ > +enum ccdc_data_size { > + /* 8 bits */ > + CCDC_8_BITS, > + /* 9 bits */ > + CCDC_9_BITS, > + /* 10 bits */ > + CCDC_10_BITS, > + /* 11 bits */ > + CCDC_11_BITS, > + /* 12 bits */ > + CCDC_12_BITS, > + /* 13 bits */ > + CCDC_13_BITS, > + /* 14 bits */ > + CCDC_14_BITS, > + /* 15 bits */ > + CCDC_15_BITS, > + /* 16 bits */ > + CCDC_16_BITS > +}; > + > +/** > + * CCDC image data shift to right > + */ > +enum ccdc_datasft { > + /* No Shift */ > + CCDC_NO_SHIFT, > + /* 1 bit Shift */ > + CCDC_1BIT_SHIFT, > + /* 2 bit Shift */ > + CCDC_2BIT_SHIFT, > + /* 3 bit Shift */ > + CCDC_3BIT_SHIFT, > + /* 4 bit Shift */ > + CCDC_4BIT_SHIFT, > + /* 5 bit Shift */ > + CCDC_5BIT_SHIFT, > + /* 6 bit Shift */ > + CCDC_6BIT_SHIFT > +}; > + > +/** > + * MSB of image data connected to sensor port > + */ > +enum ccdc_data_msb { > + /* MSB b15 */ > + CCDC_BIT_MSB_15, > + /* MSB b14 */ > + CCDC_BIT_MSB_14, > + /* MSB b13 */ > + CCDC_BIT_MSB_13, > + /* MSB b12 */ > + CCDC_BIT_MSB_12, > + /* MSB b11 */ > + CCDC_BIT_MSB_11, > + /* MSB b10 */ > + CCDC_BIT_MSB_10, > + /* MSB b9 */ > + CCDC_BIT_MSB_9, > + /* MSB b8 */ > + CCDC_BIT_MSB_8, > + /* MSB b7 */ > + CCDC_BIT_MSB_7 Could you live without the comments in these 3 enum declarations ? They don't seem to add any information. -- Regards, Sylwester -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html