diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/isp/kernels/ctc/ctc_1.0/ia_css_ctc_types.h')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/isp/kernels/ctc/ctc_1.0/ia_css_ctc_types.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/isp/kernels/ctc/ctc_1.0/ia_css_ctc_types.h b/drivers/staging/media/atomisp/pci/isp/kernels/ctc/ctc_1.0/ia_css_ctc_types.h new file mode 100644 index 000000000000..f6f5ec28827f --- /dev/null +++ b/drivers/staging/media/atomisp/pci/isp/kernels/ctc/ctc_1.0/ia_css_ctc_types.h @@ -0,0 +1,110 @@ +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + */ + +#ifndef __IA_CSS_CTC_TYPES_H +#define __IA_CSS_CTC_TYPES_H + +#include <linux/bitops.h> + +/* @file +* CSS-API header file for Chroma Tone Control parameters. +*/ + +/* Fractional bits for CTC gain (used only for ISP1). + * + * IA_CSS_CTC_COEF_SHIFT(=13) includes not only the fractional bits + * of gain(=8), but also the bits(=5) to convert chroma + * from 13bit precision to 8bit precision. + * + * Gain (struct ia_css_ctc_table) : u5.8 + * Input(Chorma) : s0.12 (13bit precision) + * Output(Chorma): s0.7 (8bit precision) + * Output = (Input * Gain) >> IA_CSS_CTC_COEF_SHIFT + */ +#define IA_CSS_CTC_COEF_SHIFT 13 + +/* Number of elements in the CTC table. */ +#define IA_CSS_VAMEM_1_CTC_TABLE_SIZE_LOG2 10 +/* Number of elements in the CTC table. */ +#define IA_CSS_VAMEM_1_CTC_TABLE_SIZE BIT(IA_CSS_VAMEM_1_CTC_TABLE_SIZE_LOG2) + +/* Number of elements in the CTC table. */ +#define IA_CSS_VAMEM_2_CTC_TABLE_SIZE_LOG2 8 +/* Number of elements in the CTC table. */ +#define IA_CSS_VAMEM_2_CTC_TABLE_SIZE ((1U << IA_CSS_VAMEM_2_CTC_TABLE_SIZE_LOG2) + 1) + +enum ia_css_vamem_type { + IA_CSS_VAMEM_TYPE_1, + IA_CSS_VAMEM_TYPE_2 +}; + +/* Chroma Tone Control configuration. + * + * ISP block: CTC2 (CTC by polygonal line approximation) + * (ISP1: CTC1 (CTC by look-up table) is used.) + * ISP2: CTC2 is used. + */ +struct ia_css_ctc_config { + u16 y0; /** 1st kneepoint gain. + u[ce_gain_exp].[13-ce_gain_exp], [0,8191], + default/ineffective 4096(0.5) */ + u16 y1; /** 2nd kneepoint gain. + u[ce_gain_exp].[13-ce_gain_exp], [0,8191], + default/ineffective 4096(0.5) */ + u16 y2; /** 3rd kneepoint gain. + u[ce_gain_exp].[13-ce_gain_exp], [0,8191], + default/ineffective 4096(0.5) */ + u16 y3; /** 4th kneepoint gain. + u[ce_gain_exp].[13-ce_gain_exp], [0,8191], + default/ineffective 4096(0.5) */ + u16 y4; /** 5th kneepoint gain. + u[ce_gain_exp].[13-ce_gain_exp], [0,8191], + default/ineffective 4096(0.5) */ + u16 y5; /** 6th kneepoint gain. + u[ce_gain_exp].[13-ce_gain_exp], [0,8191], + default/ineffective 4096(0.5) */ + u16 ce_gain_exp; /** Common exponent of y-axis gain. + u8.0, [0,13], + default/ineffective 1 */ + u16 x1; /** 2nd kneepoint luma. + u0.13, [0,8191], constraints: 0<x1<x2, + default/ineffective 1024 */ + u16 x2; /** 3rd kneepoint luma. + u0.13, [0,8191], constraints: x1<x2<x3, + default/ineffective 2048 */ + u16 x3; /** 4th kneepoint luma. + u0.13, [0,8191], constraints: x2<x3<x4, + default/ineffective 6144 */ + u16 x4; /** 5tn kneepoint luma. + u0.13, [0,8191], constraints: x3<x4<8191, + default/ineffective 7168 */ +}; + +union ia_css_ctc_data { + u16 vamem_1[IA_CSS_VAMEM_1_CTC_TABLE_SIZE]; + u16 vamem_2[IA_CSS_VAMEM_2_CTC_TABLE_SIZE]; +}; + +/* CTC table, used for Chroma Tone Control. + * + * ISP block: CTC1 (CTC by look-up table) + * ISP1: CTC1 is used. + * (ISP2: CTC2 (CTC by polygonal line approximation) is used.) + */ +struct ia_css_ctc_table { + enum ia_css_vamem_type vamem_type; + union ia_css_ctc_data data; +}; + +#endif /* __IA_CSS_CTC_TYPES_H */ |