diff options
Diffstat (limited to 'drivers/media/video/omap3isp/isppreview.c')
| -rw-r--r-- | drivers/media/video/omap3isp/isppreview.c | 2369 |
1 files changed, 0 insertions, 2369 deletions
diff --git a/drivers/media/video/omap3isp/isppreview.c b/drivers/media/video/omap3isp/isppreview.c deleted file mode 100644 index 53f5a703e31a..000000000000 --- a/drivers/media/video/omap3isp/isppreview.c +++ /dev/null @@ -1,2369 +0,0 @@ -/* - * isppreview.c - * - * TI OMAP3 ISP driver - Preview module - * - * Copyright (C) 2010 Nokia Corporation - * Copyright (C) 2009 Texas Instruments, Inc. - * - * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com> - * Sakari Ailus <sakari.ailus@iki.fi> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * 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., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - */ - -#include <linux/device.h> -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/mutex.h> -#include <linux/uaccess.h> - -#include "isp.h" -#include "ispreg.h" -#include "isppreview.h" - -/* Default values in Office Fluorescent Light for RGBtoRGB Blending */ -static struct omap3isp_prev_rgbtorgb flr_rgb2rgb = { - { /* RGB-RGB Matrix */ - {0x01E2, 0x0F30, 0x0FEE}, - {0x0F9B, 0x01AC, 0x0FB9}, - {0x0FE0, 0x0EC0, 0x0260} - }, /* RGB Offset */ - {0x0000, 0x0000, 0x0000} -}; - -/* Default values in Office Fluorescent Light for RGB to YUV Conversion*/ -static struct omap3isp_prev_csc flr_prev_csc = { - { /* CSC Coef Matrix */ - {66, 129, 25}, - {-38, -75, 112}, - {112, -94 , -18} - }, /* CSC Offset */ - {0x0, 0x0, 0x0} -}; - -/* Default values in Office Fluorescent Light for CFA Gradient*/ -#define FLR_CFA_GRADTHRS_HORZ 0x28 -#define FLR_CFA_GRADTHRS_VERT 0x28 - -/* Default values in Office Fluorescent Light for Chroma Suppression*/ -#define FLR_CSUP_GAIN 0x0D -#define FLR_CSUP_THRES 0xEB - -/* Default values in Office Fluorescent Light for Noise Filter*/ -#define FLR_NF_STRGTH 0x03 - -/* Default values for White Balance */ -#define FLR_WBAL_DGAIN 0x100 -#define FLR_WBAL_COEF 0x20 - -/* Default values in Office Fluorescent Light for Black Adjustment*/ -#define FLR_BLKADJ_BLUE 0x0 -#define FLR_BLKADJ_GREEN 0x0 -#define FLR_BLKADJ_RED 0x0 - -#define DEF_DETECT_CORRECT_VAL 0xe - -/* - * Margins and image size limits. - * - * The preview engine crops several rows and columns internally depending on - * which filters are enabled. To avoid format changes when the filters are - * enabled or disabled (which would prevent them from being turned on or off - * during streaming), the driver assumes all the filters are enabled when - * computing sink crop and source format limits. - * - * If a filter is disabled, additional cropping is automatically added at the - * preview engine input by the driver to avoid overflow at line and frame end. - * This is completely transparent for applications. - * - * Median filter 4 pixels - * Noise filter, - * Faulty pixels correction 4 pixels, 4 lines - * CFA filter 4 pixels, 4 lines in Bayer mode - * 2 lines in other modes - * Color suppression 2 pixels - * or luma enhancement - * ------------------------------------------------------------- - * Maximum total 14 pixels, 8 lines - * - * The color suppression and luma enhancement filters are applied after bayer to - * YUV conversion. They thus can crop one pixel on the left and one pixel on the - * right side of the image without changing the color pattern. When both those - * filters are disabled, the driver must crop the two pixels on the same side of - * the image to avoid changing the bayer pattern. The left margin is thus set to - * 8 pixels and the right margin to 6 pixels. - */ - -#define PREV_MARGIN_LEFT 8 -#define PREV_MARGIN_RIGHT 6 -#define PREV_MARGIN_TOP 4 -#define PREV_MARGIN_BOTTOM 4 - -#define PREV_MIN_IN_WIDTH 64 -#define PREV_MIN_IN_HEIGHT 8 -#define PREV_MAX_IN_HEIGHT 16384 - -#define PREV_MIN_OUT_WIDTH 0 -#define PREV_MIN_OUT_HEIGHT 0 -#define PREV_MAX_OUT_WIDTH_REV_1 1280 -#define PREV_MAX_OUT_WIDTH_REV_2 3300 -#define PREV_MAX_OUT_WIDTH_REV_15 4096 - -/* - * Coeficient Tables for the submodules in Preview. - * Array is initialised with the values from.the tables text file. - */ - -/* - * CFA Filter Coefficient Table - * - */ -static u32 cfa_coef_table[] = { -#include "cfa_coef_table.h" -}; - -/* - * Default Gamma Correction Table - All components - */ -static u32 gamma_table[] = { -#include "gamma_table.h" -}; - -/* - * Noise Filter Threshold table - */ -static u32 noise_filter_table[] = { -#include "noise_filter_table.h" -}; - -/* - * Luminance Enhancement Table - */ -static u32 luma_enhance_table[] = { -#include "luma_enhance_table.h" -}; - -/* - * preview_enable_invalaw - Enable/Disable Inverse A-Law module in Preview. - * @enable: 1 - Reverse the A-Law done in CCDC. - */ -static void -preview_enable_invalaw(struct isp_prev_device *prev, u8 enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW); -} - -/* - * preview_enable_drkframe_capture - Enable/Disable of the darkframe capture. - * @prev - - * @enable: 1 - Enable, 0 - Disable - * - * NOTE: PRV_WSDR_ADDR and PRV_WADD_OFFSET must be set also - * The process is applied for each captured frame. - */ -static void -preview_enable_drkframe_capture(struct isp_prev_device *prev, u8 enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DRKFCAP); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DRKFCAP); -} - -/* - * preview_enable_drkframe - Enable/Disable of the darkframe subtract. - * @enable: 1 - Acquires memory bandwidth since the pixels in each frame is - * subtracted with the pixels in the current frame. - * - * The process is applied for each captured frame. - */ -static void -preview_enable_drkframe(struct isp_prev_device *prev, u8 enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DRKFEN); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DRKFEN); -} - -/* - * preview_config_drkf_shadcomp - Configures shift value in shading comp. - * @scomp_shtval: 3bit value of shift used in shading compensation. - */ -static void -preview_config_drkf_shadcomp(struct isp_prev_device *prev, - const void *scomp_shtval) -{ - struct isp_device *isp = to_isp_device(prev); - const u32 *shtval = scomp_shtval; - - isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_SCOMP_SFT_MASK, - *shtval << ISPPRV_PCR_SCOMP_SFT_SHIFT); -} - -/* - * preview_enable_hmed - Enables/Disables of the Horizontal Median Filter. - * @enable: 1 - Enables Horizontal Median Filter. - */ -static void -preview_enable_hmed(struct isp_prev_device *prev, u8 enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_HMEDEN); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_HMEDEN); -} - -/* - * preview_config_hmed - Configures the Horizontal Median Filter. - * @prev_hmed: Structure containing the odd and even distance between the - * pixels in the image along with the filter threshold. - */ -static void -preview_config_hmed(struct isp_prev_device *prev, const void *prev_hmed) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_hmed *hmed = prev_hmed; - - isp_reg_writel(isp, (hmed->odddist == 1 ? 0 : ISPPRV_HMED_ODDDIST) | - (hmed->evendist == 1 ? 0 : ISPPRV_HMED_EVENDIST) | - (hmed->thres << ISPPRV_HMED_THRESHOLD_SHIFT), - OMAP3_ISP_IOMEM_PREV, ISPPRV_HMED); -} - -/* - * preview_config_noisefilter - Configures the Noise Filter. - * @prev_nf: Structure containing the noisefilter table, strength to be used - * for the noise filter and the defect correction enable flag. - */ -static void -preview_config_noisefilter(struct isp_prev_device *prev, const void *prev_nf) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_nf *nf = prev_nf; - unsigned int i; - - isp_reg_writel(isp, nf->spread, OMAP3_ISP_IOMEM_PREV, ISPPRV_NF); - isp_reg_writel(isp, ISPPRV_NF_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - for (i = 0; i < OMAP3ISP_PREV_NF_TBL_SIZE; i++) { - isp_reg_writel(isp, nf->table[i], - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA); - } -} - -/* - * preview_config_dcor - Configures the defect correction - * @prev_dcor: Structure containing the defect correct thresholds - */ -static void -preview_config_dcor(struct isp_prev_device *prev, const void *prev_dcor) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_dcor *dcor = prev_dcor; - - isp_reg_writel(isp, dcor->detect_correct[0], - OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR0); - isp_reg_writel(isp, dcor->detect_correct[1], - OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR1); - isp_reg_writel(isp, dcor->detect_correct[2], - OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR2); - isp_reg_writel(isp, dcor->detect_correct[3], - OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR3); - isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DCCOUP, - dcor->couplet_mode_en ? ISPPRV_PCR_DCCOUP : 0); -} - -/* - * preview_config_cfa - Configures the CFA Interpolation parameters. - * @prev_cfa: Structure containing the CFA interpolation table, CFA format - * in the image, vertical and horizontal gradient threshold. - */ -static void -preview_config_cfa(struct isp_prev_device *prev, const void *prev_cfa) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_cfa *cfa = prev_cfa; - unsigned int i; - - isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_CFAFMT_MASK, - cfa->format << ISPPRV_PCR_CFAFMT_SHIFT); - - isp_reg_writel(isp, - (cfa->gradthrs_vert << ISPPRV_CFA_GRADTH_VER_SHIFT) | - (cfa->gradthrs_horz << ISPPRV_CFA_GRADTH_HOR_SHIFT), - OMAP3_ISP_IOMEM_PREV, ISPPRV_CFA); - - isp_reg_writel(isp, ISPPRV_CFA_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - - for (i = 0; i < OMAP3ISP_PREV_CFA_TBL_SIZE; i++) { - isp_reg_writel(isp, cfa->table[i], - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA); - } -} - -/* - * preview_config_gammacorrn - Configures the Gamma Correction table values - * @gtable: Structure containing the table for red, blue, green gamma table. - */ -static void -preview_config_gammacorrn(struct isp_prev_device *prev, const void *gtable) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_gtables *gt = gtable; - unsigned int i; - - isp_reg_writel(isp, ISPPRV_REDGAMMA_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) - isp_reg_writel(isp, gt->red[i], OMAP3_ISP_IOMEM_PREV, - ISPPRV_SET_TBL_DATA); - - isp_reg_writel(isp, ISPPRV_GREENGAMMA_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) - isp_reg_writel(isp, gt->green[i], OMAP3_ISP_IOMEM_PREV, - ISPPRV_SET_TBL_DATA); - - isp_reg_writel(isp, ISPPRV_BLUEGAMMA_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) - isp_reg_writel(isp, gt->blue[i], OMAP3_ISP_IOMEM_PREV, - ISPPRV_SET_TBL_DATA); -} - -/* - * preview_config_luma_enhancement - Sets the Luminance Enhancement table. - * @ytable: Structure containing the table for Luminance Enhancement table. - */ -static void -preview_config_luma_enhancement(struct isp_prev_device *prev, - const void *ytable) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_luma *yt = ytable; - unsigned int i; - - isp_reg_writel(isp, ISPPRV_YENH_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - for (i = 0; i < OMAP3ISP_PREV_YENH_TBL_SIZE; i++) { - isp_reg_writel(isp, yt->table[i], - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA); - } -} - -/* - * preview_config_chroma_suppression - Configures the Chroma Suppression. - * @csup: Structure containing the threshold value for suppression - * and the hypass filter enable flag. - */ -static void -preview_config_chroma_suppression(struct isp_prev_device *prev, - const void *csup) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_csup *cs = csup; - - isp_reg_writel(isp, - cs->gain | (cs->thres << ISPPRV_CSUP_THRES_SHIFT) | - (cs->hypf_en << ISPPRV_CSUP_HPYF_SHIFT), - OMAP3_ISP_IOMEM_PREV, ISPPRV_CSUP); -} - -/* - * preview_enable_noisefilter - Enables/Disables the Noise Filter. - * @enable: 1 - Enables the Noise Filter. - */ -static void -preview_enable_noisefilter(struct isp_prev_device *prev, u8 enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_NFEN); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_NFEN); -} - -/* - * preview_enable_dcor - Enables/Disables the defect correction. - * @enable: 1 - Enables the defect correction. - */ -static void -preview_enable_dcor(struct isp_prev_device *prev, u8 enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DCOREN); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DCOREN); -} - -/* - * preview_enable_gammabypass - Enables/Disables the GammaByPass - * @enable: 1 - Bypasses Gamma - 10bit input is cropped to 8MSB. - * 0 - Goes through Gamma Correction. input and output is 10bit. - */ -static void -preview_enable_gammabypass(struct isp_prev_device *prev, u8 enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_GAMMA_BYPASS); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_GAMMA_BYPASS); -} - -/* - * preview_enable_luma_enhancement - Enables/Disables Luminance Enhancement - * @enable: 1 - Enable the Luminance Enhancement. - */ -static void -preview_enable_luma_enhancement(struct isp_prev_device *prev, u8 enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_YNENHEN); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_YNENHEN); -} - -/* - * preview_enable_chroma_suppression - Enables/Disables Chrominance Suppr. - * @enable: 1 - Enable the Chrominance Suppression. - */ -static void -preview_enable_chroma_suppression(struct isp_prev_device *prev, u8 enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_SUPEN); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_SUPEN); -} - -/* - * preview_config_whitebalance - Configures the White Balance parameters. - * @prev_wbal: Structure containing the digital gain and white balance - * coefficient. - * - * Coefficient matrix always with default values. - */ -static void -preview_config_whitebalance(struct isp_prev_device *prev, const void *prev_wbal) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_wbal *wbal = prev_wbal; - u32 val; - - isp_reg_writel(isp, wbal->dgain, OMAP3_ISP_IOMEM_PREV, ISPPRV_WB_DGAIN); - - val = wbal->coef0 << ISPPRV_WBGAIN_COEF0_SHIFT; - val |= wbal->coef1 << ISPPRV_WBGAIN_COEF1_SHIFT; - val |= wbal->coef2 << ISPPRV_WBGAIN_COEF2_SHIFT; - val |= wbal->coef3 << ISPPRV_WBGAIN_COEF3_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_WBGAIN); - - isp_reg_writel(isp, - ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N0_0_SHIFT | - ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N0_1_SHIFT | - ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N0_2_SHIFT | - ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N0_3_SHIFT | - ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N1_0_SHIFT | - ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N1_1_SHIFT | - ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N1_2_SHIFT | - ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N1_3_SHIFT | - ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N2_0_SHIFT | - ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N2_1_SHIFT | - ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N2_2_SHIFT | - ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N2_3_SHIFT | - ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N3_0_SHIFT | - ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N3_1_SHIFT | - ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N3_2_SHIFT | - ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N3_3_SHIFT, - OMAP3_ISP_IOMEM_PREV, ISPPRV_WBSEL); -} - -/* - * preview_config_blkadj - Configures the Black Adjustment parameters. - * @prev_blkadj: Structure containing the black adjustment towards red, green, - * blue. - */ -static void -preview_config_blkadj(struct isp_prev_device *prev, const void *prev_blkadj) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_blkadj *blkadj = prev_blkadj; - - isp_reg_writel(isp, (blkadj->blue << ISPPRV_BLKADJOFF_B_SHIFT) | - (blkadj->green << ISPPRV_BLKADJOFF_G_SHIFT) | - (blkadj->red << ISPPRV_BLKADJOFF_R_SHIFT), - OMAP3_ISP_IOMEM_PREV, ISPPRV_BLKADJOFF); -} - -/* - * preview_config_rgb_blending - Configures the RGB-RGB Blending matrix. - * @rgb2rgb: Structure containing the rgb to rgb blending matrix and the rgb - * offset. - */ -static void -preview_config_rgb_blending(struct isp_prev_device *prev, const void *rgb2rgb) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_rgbtorgb *rgbrgb = rgb2rgb; - u32 val; - - val = (rgbrgb->matrix[0][0] & 0xfff) << ISPPRV_RGB_MAT1_MTX_RR_SHIFT; - val |= (rgbrgb->matrix[0][1] & 0xfff) << ISPPRV_RGB_MAT1_MTX_GR_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT1); - - val = (rgbrgb->matrix[0][2] & 0xfff) << ISPPRV_RGB_MAT2_MTX_BR_SHIFT; - val |= (rgbrgb->matrix[1][0] & 0xfff) << ISPPRV_RGB_MAT2_MTX_RG_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT2); - - val = (rgbrgb->matrix[1][1] & 0xfff) << ISPPRV_RGB_MAT3_MTX_GG_SHIFT; - val |= (rgbrgb->matrix[1][2] & 0xfff) << ISPPRV_RGB_MAT3_MTX_BG_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT3); - - val = (rgbrgb->matrix[2][0] & 0xfff) << ISPPRV_RGB_MAT4_MTX_RB_SHIFT; - val |= (rgbrgb->matrix[2][1] & 0xfff) << ISPPRV_RGB_MAT4_MTX_GB_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT4); - - val = (rgbrgb->matrix[2][2] & 0xfff) << ISPPRV_RGB_MAT5_MTX_BB_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT5); - - val = (rgbrgb->offset[0] & 0x3ff) << ISPPRV_RGB_OFF1_MTX_OFFR_SHIFT; - val |= (rgbrgb->offset[1] & 0x3ff) << ISPPRV_RGB_OFF1_MTX_OFFG_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_OFF1); - - val = (rgbrgb->offset[2] & 0x3ff) << ISPPRV_RGB_OFF2_MTX_OFFB_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_OFF2); -} - -/* - * Configures the color space conversion (RGB toYCbYCr) matrix - * @prev_csc: Structure containing the RGB to YCbYCr matrix and the - * YCbCr offset. - */ -static void -preview_config_csc(struct isp_prev_device *prev, const void *prev_csc) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_csc *csc = prev_csc; - u32 val; - - val = (csc->matrix[0][0] & 0x3ff) << ISPPRV_CSC0_RY_SHIFT; - val |= (csc->matrix[0][1] & 0x3ff) << ISPPRV_CSC0_GY_SHIFT; - val |= (csc->matrix[0][2] & 0x3ff) << ISPPRV_CSC0_BY_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC0); - - val = (csc->matrix[1][0] & 0x3ff) << ISPPRV_CSC1_RCB_SHIFT; - val |= (csc->matrix[1][1] & 0x3ff) << ISPPRV_CSC1_GCB_SHIFT; - val |= (csc->matrix[1][2] & 0x3ff) << ISPPRV_CSC1_BCB_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC1); - - val = (csc->matrix[2][0] & 0x3ff) << ISPPRV_CSC2_RCR_SHIFT; - val |= (csc->matrix[2][1] & 0x3ff) << ISPPRV_CSC2_GCR_SHIFT; - val |= (csc->matrix[2][2] & 0x3ff) << ISPPRV_CSC2_BCR_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC2); - - val = (csc->offset[0] & 0xff) << ISPPRV_CSC_OFFSET_Y_SHIFT; - val |= (csc->offset[1] & 0xff) << ISPPRV_CSC_OFFSET_CB_SHIFT; - val |= (csc->offset[2] & 0xff) << ISPPRV_CSC_OFFSET_CR_SHIFT; - isp_reg_writel(isp, val, OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC_OFFSET); -} - -/* - * preview_update_contrast - Updates the contrast. - * @contrast: Pointer to hold the current programmed contrast value. - * - * Value should be programmed before enabling the module. - */ -static void -preview_update_contrast(struct isp_prev_device *prev, u8 contrast) -{ - struct prev_params *params; - unsigned long flags; - - spin_lock_irqsave(&prev->params.lock, flags); - params = (prev->params.active & OMAP3ISP_PREV_CONTRAST) - ? &prev->params.params[0] : &prev->params.params[1]; - - if (params->contrast != (contrast * ISPPRV_CONTRAST_UNITS)) { - params->contrast = contrast * ISPPRV_CONTRAST_UNITS; - params->update |= OMAP3ISP_PREV_CONTRAST; - } - spin_unlock_irqrestore(&prev->params.lock, flags); -} - -/* - * preview_config_contrast - Configures the Contrast. - * @params: Contrast value (u8 pointer, U8Q0 format). - * - * Value should be programmed before enabling the module. - */ -static void -preview_config_contrast(struct isp_prev_device *prev, const void *params) -{ - struct isp_device *isp = to_isp_device(prev); - - isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT, - 0xff << ISPPRV_CNT_BRT_CNT_SHIFT, - *(u8 *)params << ISPPRV_CNT_BRT_CNT_SHIFT); -} - -/* - * preview_update_brightness - Updates the brightness in preview module. - * @brightness: Pointer to hold the current programmed brightness value. - * - */ -static void -preview_update_brightness(struct isp_prev_device *prev, u8 brightness) -{ - struct prev_params *params; - unsigned long flags; - - spin_lock_irqsave(&prev->params.lock, flags); - params = (prev->params.active & OMAP3ISP_PREV_BRIGHTNESS) - ? &prev->params.params[0] : &prev->params.params[1]; - - if (params->brightness != (brightness * ISPPRV_BRIGHT_UNITS)) { - params->brightness = brightness * ISPPRV_BRIGHT_UNITS; - params->update |= OMAP3ISP_PREV_BRIGHTNESS; - } - spin_unlock_irqrestore(&prev->params.lock, flags); -} - -/* - * preview_config_brightness - Configures the brightness. - * @params: Brightness value (u8 pointer, U8Q0 format). - */ -static void -preview_config_brightness(struct isp_prev_device *prev, const void *params) -{ - struct isp_device *isp = to_isp_device(prev); - - isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT, - 0xff << ISPPRV_CNT_BRT_BRT_SHIFT, - *(u8 *)params << ISPPRV_CNT_BRT_BRT_SHIFT); -} - -/* - * preview_config_yc_range - Configures the max and min Y and C values. - * @yclimit: Structure containing the range of Y and C values. - */ -static void -preview_config_yc_range(struct isp_prev_device *prev, const void *yclimit) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_yclimit *yc = yclimit; - - isp_reg_writel(isp, - yc->maxC << ISPPRV_SETUP_YC_MAXC_SHIFT | - yc->maxY << ISPPRV_SETUP_YC_MAXY_SHIFT | - yc->minC << ISPPRV_SETUP_YC_MINC_SHIFT | - yc->minY << ISPPRV_SETUP_YC_MINY_SHIFT, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SETUP_YC); -} - -static u32 -preview_params_lock(struct isp_prev_device *prev, u32 update, bool shadow) -{ - u32 active = prev->params.active; - - if (shadow) { - /* Mark all shadow parameters we are going to touch as busy. */ - prev->params.params[0].busy |= ~active & update; - prev->params.params[1].busy |= active & update; - } else { - /* Mark all active parameters we are going to touch as busy. */ - update = (prev->params.params[0].update & active) - | (prev->params.params[1].update & ~active); - - prev->params.params[0].busy |= active & update; - prev->params.params[1].busy |= ~active & update; - } - - return update; -} - -static void -preview_params_unlock(struct isp_prev_device *prev, u32 update, bool shadow) -{ - u32 active = prev->params.active; - - if (shadow) { - /* Set the update flag for shadow parameters that have been - * updated and clear the busy flag for all shadow parameters. - */ - prev->params.params[0].update |= (~active & update); - prev->params.params[1].update |= (active & update); - prev->params.params[0].busy &= active; - prev->params.params[1].busy &= ~active; - } else { - /* Clear the update flag for active parameters that have been - * applied and the busy flag for all active parameters. - */ - prev->params.params[0].update &= ~(active & update); - prev->params.params[1].update &= ~(~active & update); - prev->params.params[0].busy &= ~active; - prev->params.params[1].busy &= active; - } -} - -static void preview_params_switch(struct isp_prev_device *prev) -{ - u32 to_switch; - - /* Switch active parameters with updated shadow parameters when the - * shadow parameter has been updated and neither the active not the - * shadow parameter is busy. - */ - to_switch = (prev->params.params[0].update & ~prev->params.active) - | (prev->params.params[1].update & prev->params.active); - to_switch &= ~(prev->params.params[0].busy | - prev->params.params[1].busy); - if (to_switch == 0) - return; - - prev->params.active ^= to_switch; - - /* Remove the update flag for the shadow copy of parameters we have - * switched. - */ - prev->params.params[0].update &= ~(~prev->params.active & to_switch); - prev->params.params[1].update &= ~(prev->params.active & to_switch); -} - -/* preview parameters update structure */ -struct preview_update { - void (*config)(struct isp_prev_device *, const void *); - void (*enable)(struct isp_prev_device *, u8); - unsigned int param_offset; - unsigned int param_size; - unsigned int config_offset; - bool skip; -}; - -/* Keep the array indexed by the OMAP3ISP_PREV_* bit number. */ -static const struct preview_update update_attrs[] = { - /* OMAP3ISP_PREV_LUMAENH */ { - preview_config_luma_enhancement, - preview_enable_luma_enhancement, - offsetof(struct prev_params, luma), - FIELD_SIZEOF(struct prev_params, luma), - offsetof(struct omap3isp_prev_update_config, luma), - }, /* OMAP3ISP_PREV_INVALAW */ { - NULL, - preview_enable_invalaw, - }, /* OMAP3ISP_PREV_HRZ_MED */ { - preview_config_hmed, - preview_enable_hmed, - offsetof(struct prev_params, hmed), - FIELD_SIZEOF(struct prev_params, hmed), - offsetof(struct omap3isp_prev_update_config, hmed), - }, /* OMAP3ISP_PREV_CFA */ { - preview_config_cfa, - NULL, - offsetof(struct prev_params, cfa), - FIELD_SIZEOF(struct prev_params, cfa), - offsetof(struct omap3isp_prev_update_config, cfa), - }, /* OMAP3ISP_PREV_CHROMA_SUPP */ { - preview_config_chroma_suppression, - preview_enable_chroma_suppression, - offsetof(struct prev_params, csup), - FIELD_SIZEOF(struct prev_params, csup), - offsetof(struct omap3isp_prev_update_config, csup), - }, /* OMAP3ISP_PREV_WB */ { - preview_config_whitebalance, - NULL, - offsetof(struct prev_params, wbal), - FIELD_SIZEOF(struct prev_params, wbal), - offsetof(struct omap3isp_prev_update_config, wbal), - }, /* OMAP3ISP_PREV_BLKADJ */ { - preview_config_blkadj, - NULL, - offsetof(struct prev_params, blkadj), - FIELD_SIZEOF(struct prev_params, blkadj), - offsetof(struct omap3isp_prev_update_config, blkadj), - }, /* OMAP3ISP_PREV_RGB2RGB */ { - preview_config_rgb_blending, - NULL, - offsetof(struct prev_params, rgb2rgb), - FIELD_SIZEOF(struct prev_params, rgb2rgb), - offsetof(struct omap3isp_prev_update_config, rgb2rgb), - }, /* OMAP3ISP_PREV_COLOR_CONV */ { - preview_config_csc, - NULL, - offsetof(struct prev_params, csc), - FIELD_SIZEOF(struct prev_params, csc), - offsetof(struct omap3isp_prev_update_config, csc), - }, /* OMAP3ISP_PREV_YC_LIMIT */ { - preview_config_yc_range, - NULL, - offsetof(struct prev_params, yclimit), - FIELD_SIZEOF(struct prev_params, yclimit), - offsetof(struct omap3isp_prev_update_config, yclimit), - }, /* OMAP3ISP_PREV_DEFECT_COR */ { - preview_config_dcor, - preview_enable_dcor, - offsetof(struct prev_params, dcor), - FIELD_SIZEOF(struct prev_params, dcor), - offsetof(struct omap3isp_prev_update_config, dcor), - }, /* OMAP3ISP_PREV_GAMMABYPASS */ { - NULL, - preview_enable_gammabypass, - }, /* OMAP3ISP_PREV_DRK_FRM_CAPTURE */ { - NULL, - preview_enable_drkframe_capture, - }, /* OMAP3ISP_PREV_DRK_FRM_SUBTRACT */ { - NULL, - preview_enable_drkframe, - }, /* OMAP3ISP_PREV_LENS_SHADING */ { - preview_config_drkf_shadcomp, - preview_enable_drkframe, - }, /* OMAP3ISP_PREV_NF */ { - preview_config_noisefilter, - preview_enable_noisefilter, - offsetof(struct prev_params, nf), - FIELD_SIZEOF(struct prev_params, nf), - offsetof(struct omap3isp_prev_update_config, nf), - }, /* OMAP3ISP_PREV_GAMMA */ { - preview_config_gammacorrn, - NULL, - offsetof(struct prev_params, gamma), - FIELD_SIZEOF(struct prev_params, gamma), - offsetof(struct omap3isp_prev_update_config, gamma), - }, /* OMAP3ISP_PREV_CONTRAST */ { - preview_config_contrast, - NULL, - offsetof(struct prev_params, contrast), - 0, 0, true, - }, /* OMAP3ISP_PREV_BRIGHTNESS */ { - preview_config_brightness, - NULL, - offsetof(struct prev_params, brightness), - 0, 0, true, - }, -}; - -/* - * preview_config - Copy and update local structure with userspace preview - * configuration. - * @prev: ISP preview engine - * @cfg: Configuration - * - * Return zero if success or -EFAULT if the configuration can't be copied from - * userspace. - */ -static int preview_config(struct isp_prev_device *prev, - struct omap3isp_prev_update_config *cfg) -{ - unsigned long flags; - unsigned int i; - int rval = 0; - u32 update; - u32 active; - - if (cfg->update == 0) - return 0; - - /* Mark the shadow parameters we're going to update as busy. */ - spin_lock_irqsave(&prev->params.lock, flags); - preview_params_lock(prev, cfg->update, true); - active = prev->params.active; - spin_unlock_irqrestore(&prev->params.lock, flags); - - update = 0; - - for (i = 0; i < ARRAY_SIZE(update_attrs); i++) { - const struct preview_update *attr = &update_attrs[i]; - struct prev_params *params; - unsigned int bit = 1 << i; - - if (attr->skip || !(cfg->update & bit)) - continue; - - params = &prev->params.params[!!(active & bit)]; - - if (cfg->flag & bit) { - void __user *from = *(void * __user *) - ((void *)cfg + attr->config_offset); - void *to = (void *)params + attr->param_offset; - size_t size = attr->param_size; - - if (to && from && size) { - if (copy_from_user(to, from, size)) { - rval = -EFAULT; - break; - } - } - params->features |= bit; - } else { - params->features &= ~bit; - } - - update |= bit; - } - - spin_lock_irqsave(&prev->params.lock, flags); - preview_params_unlock(prev, update, true); - preview_params_switch(prev); - spin_unlock_irqrestore(&prev->params.lock, flags); - - return rval; -} - -/* - * preview_setup_hw - Setup preview registers and/or internal memory - * @prev: pointer to preview private structure - * @update: Bitmask of parameters to setup - * @active: Bitmask of parameters active in set 0 - * Note: can be called from interrupt context - * Return none - */ -static void preview_setup_hw(struct isp_prev_device *prev, u32 update, - u32 active) -{ - unsigned int i; - u32 features; - - if (update == 0) - return; - - features = (prev->params.params[0].features & active) - | (prev->params.params[1].features & ~active); - - for (i = 0; i < ARRAY_SIZE(update_attrs); i++) { - const struct preview_update *attr = &update_attrs[i]; - struct prev_params *params; - unsigned int bit = 1 << i; - void *param_ptr; - - if (!(update & bit)) - continue; - - params = &prev->params.params[!(active & bit)]; - - if (params->features & bit) { - if (attr->config) { - param_ptr = (void *)params + attr->param_offset; - attr->config(prev, param_ptr); - } - if (attr->enable) - attr->enable(prev, 1); - } else { - if (attr->enable) - attr->enable(prev, 0); - } - } -} - -/* - * preview_config_ycpos - Configure byte layout of YUV image. - * @mode: Indicates the required byte layout. - */ -static void -preview_config_ycpos(struct isp_prev_device *prev, - enum v4l2_mbus_pixelcode pixelcode) -{ - struct isp_device *isp = to_isp_device(prev); - enum preview_ycpos_mode mode; - - switch (pixelcode) { - case V4L2_MBUS_FMT_YUYV8_1X16: - mode = YCPOS_CrYCbY; - break; - case V4L2_MBUS_FMT_UYVY8_1X16: - mode = YCPOS_YCrYCb; - break; - default: - return; - } - - isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_YCPOS_CrYCbY, - mode << ISPPRV_PCR_YCPOS_SHIFT); -} - -/* - * preview_config_averager - Enable / disable / configure averager - * @average: Average value to be configured. - */ -static void preview_config_averager(struct isp_prev_device *prev, u8 average) -{ - struct isp_device *isp = to_isp_device(prev); - struct prev_params *params; - int reg = 0; - - params = (prev->params.active & OMAP3ISP_PREV_CFA) - ? &prev->params.params[0] : &prev->params.params[1]; - - if (params->cfa.format == OMAP3ISP_CFAFMT_BAYER) - reg = ISPPRV_AVE_EVENDIST_2 << ISPPRV_AVE_EVENDIST_SHIFT | - ISPPRV_AVE_ODDDIST_2 << ISPPRV_AVE_ODDDIST_SHIFT | - average; - else if (params->cfa.format == OMAP3ISP_CFAFMT_RGBFOVEON) - reg = ISPPRV_AVE_EVENDIST_3 << ISPPRV_AVE_EVENDIST_SHIFT | - ISPPRV_AVE_ODDDIST_3 << ISPPRV_AVE_ODDDIST_SHIFT | - average; - isp_reg_writel(isp, reg, OMAP3_ISP_IOMEM_PREV, ISPPRV_AVE); -} - -/* - * preview_config_input_format - Configure the input format - * @prev: The preview engine - * @format: Format on the preview engine sink pad - * - * Enable CFA interpolation for Bayer formats and disable it for greyscale - * formats. - */ -static void preview_config_input_format(struct isp_prev_device *prev, - const struct v4l2_mbus_framefmt *format) -{ - struct isp_device *isp = to_isp_device(prev); - - if (format->code != V4L2_MBUS_FMT_Y10_1X10) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_CFAEN); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_CFAEN); -} - -/* - * preview_config_input_size - Configure the input frame size - * - * The preview engine crops several rows and columns internally depending on - * which processing blocks are enabled. The driver assumes all those blocks are - * enabled when reporting source pad formats to userspace. If this assumption is - * not true, rows and columns must be manually cropped at the preview engine - * input to avoid overflows at the end of lines and frames. - * - * See the explanation at the PREV_MARGIN_* definitions for more details. - */ -static void preview_config_input_size(struct isp_prev_device *prev, u32 active) -{ - const struct v4l2_mbus_framefmt *format = &prev->formats[PREV_PAD_SINK]; - struct isp_device *isp = to_isp_device(prev); - unsigned int sph = prev->crop.left; - unsigned int eph = prev->crop.left + prev->crop.width - 1; - unsigned int slv = prev->crop.top; - unsigned int elv = prev->crop.top + prev->crop.height - 1; - u32 features; - - if (format->code != V4L2_MBUS_FMT_Y10_1X10) { - sph -= 2; - eph += 2; - slv -= 2; - elv += 2; - } - - features = (prev->params.params[0].features & active) - | (prev->params.params[1].features & ~active); - - if (features & (OMAP3ISP_PREV_DEFECT_COR | OMAP3ISP_PREV_NF)) { - sph -= 2; - eph += 2; - slv -= 2; - elv += 2; - } - if (features & OMAP3ISP_PREV_HRZ_MED) { - sph -= 2; - eph += 2; - } - if (features & (OMAP3ISP_PREV_CHROMA_SUPP | OMAP3ISP_PREV_LUMAENH)) - sph -= 2; - - isp_reg_writel(isp, (sph << ISPPRV_HORZ_INFO_SPH_SHIFT) | eph, - OMAP3_ISP_IOMEM_PREV, ISPPRV_HORZ_INFO); - isp_reg_writel(isp, (slv << ISPPRV_VERT_INFO_SLV_SHIFT) | elv, - OMAP3_ISP_IOMEM_PREV, ISPPRV_VERT_INFO); -} - -/* - * preview_config_inlineoffset - Configures the Read address line offset. - * @prev: Preview module - * @offset: Line offset - * - * According to the TRM, the line offset must be aligned on a 32 bytes boundary. - * However, a hardware bug requires the memory start address to be aligned on a - * 64 bytes boundary, so the offset probably should be aligned on 64 bytes as - * well. - */ -static void -preview_config_inlineoffset(struct isp_prev_device *prev, u32 offset) -{ - struct isp_device *isp = to_isp_device(prev); - - isp_reg_writel(isp, offset & 0xffff, OMAP3_ISP_IOMEM_PREV, - ISPPRV_RADR_OFFSET); -} - -/* - * preview_set_inaddr - Sets memory address of input frame. - * @addr: 32bit memory address aligned on 32byte boundary. - * - * Configures the memory address from which the input frame is to be read. - */ -static void preview_set_inaddr(struct isp_prev_device *prev, u32 addr) -{ - struct isp_device *isp = to_isp_device(prev); - - isp_reg_writel(isp, addr, OMAP3_ISP_IOMEM_PREV, ISPPRV_RSDR_ADDR); -} - -/* - * preview_config_outlineoffset - Configures the Write address line offset. - * @offset: Line Offset for the preview output. - * - * The offset must be a multiple of 32 bytes. - */ -static void preview_config_outlineoffset(struct isp_prev_device *prev, - u32 offset) -{ - struct isp_device *isp = to_isp_device(prev); - - isp_reg_writel(isp, offset & 0xffff, OMAP3_ISP_IOMEM_PREV, - ISPPRV_WADD_OFFSET); -} - -/* - * preview_set_outaddr - Sets the memory address to store output frame - * @addr: 32bit memory address aligned on 32byte boundary. - * - * Configures the memory address to which the output frame is written. - */ -static void preview_set_outaddr(struct isp_prev_device *prev, u32 addr) -{ - struct isp_device *isp = to_isp_device(prev); - - isp_reg_writel(isp, addr, OMAP3_ISP_IOMEM_PREV, ISPPRV_WSDR_ADDR); -} - -static void preview_adjust_bandwidth(struct isp_prev_device *prev) -{ - struct isp_pipeline *pipe = to_isp_pipeline(&prev->subdev.entity); - struct isp_device *isp = to_isp_device(prev); - const struct v4l2_mbus_framefmt *ifmt = &prev->formats[PREV_PAD_SINK]; - unsigned long l3_ick = pipe->l3_ick; - struct v4l2_fract *timeperframe; - unsigned int cycles_per_frame; - unsigned int requests_per_frame; - unsigned int cycles_per_request; - unsigned int minimum; - unsigned int maximum; - unsigned int value; - - if (prev->input != PREVIEW_INPUT_MEMORY) { - isp_reg_clr(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_SDR_REQ_EXP, - ISPSBL_SDR_REQ_PRV_EXP_MASK); - return; - } - - /* Compute the minimum number of cycles per request, based on the - * pipeline maximum data rate. This is an absolute lower bound if we - * don't want SBL overflows, so round the value up. - */ - cycles_per_request = div_u64((u64)l3_ick / 2 * 256 + pipe->max_rate - 1, - pipe->max_rate); - minimum = DIV_ROUND_UP(cycles_per_request, 32); - - /* Compute the maximum number of cycles per request, based on the - * requested frame rate. This is a soft upper bound to achieve a frame - * rate equal or higher than the requested value, so round the value - * down. - */ - timeperframe = &pipe->max_timeperframe; - - requests_per_frame = DIV_ROUND_UP(ifmt->width * 2, 256) * ifmt->height; - cycles_per_frame = div_u64((u64)l3_ick * timeperframe->numerator, - timeperframe->denominator); - cycles_per_request = cycles_per_frame / requests_per_frame; - - maximum = cycles_per_request / 32; - - value = max(minimum, maximum); - - dev_dbg(isp->dev, "%s: cycles per request = %u\n", __func__, value); - isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_SDR_REQ_EXP, - ISPSBL_SDR_REQ_PRV_EXP_MASK, - value << ISPSBL_SDR_REQ_PRV_EXP_SHIFT); -} - -/* - * omap3isp_preview_busy - Gets busy state of preview module. - */ -int omap3isp_preview_busy(struct isp_prev_device *prev) -{ - struct isp_device *isp = to_isp_device(prev); - - return isp_reg_readl(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR) - & ISPPRV_PCR_BUSY; -} - -/* - * omap3isp_preview_restore_context - Restores the values of preview registers - */ -void omap3isp_preview_restore_context(struct isp_device *isp) -{ - struct isp_prev_device *prev = &isp->isp_prev; - const u32 update = OMAP3ISP_PREV_FEATURES_END - 1; - - prev->params.params[0].update = prev->params.active & update; - prev->params.params[1].update = ~prev->params.active & update; - - preview_setup_hw(prev, update, prev->params.active); - - prev->params.params[0].update = 0; - prev->params.params[1].update = 0; -} - -/* - * preview_print_status - Dump preview module registers to the kernel log - */ -#define PREV_PRINT_REGISTER(isp, name)\ - dev_dbg(isp->dev, "###PRV " #name "=0x%08x\n", \ - isp_reg_readl(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_##name)) - -static void preview_print_status(struct isp_prev_device *prev) -{ - struct isp_device *isp = to_isp_device(prev); - - dev_dbg(isp->dev, "-------------Preview Register dump----------\n"); - - PREV_PRINT_REGISTER(isp, PCR); - PREV_PRINT_REGISTER(isp, HORZ_INFO); - PREV_PRINT_REGISTER(isp, VERT_INFO); - PREV_PRINT_REGISTER(isp, RSDR_ADDR); - PREV_PRINT_REGISTER(isp, RADR_OFFSET); - PREV_PRINT_REGISTER(isp, DSDR_ADDR); - PREV_PRINT_REGISTER(isp, DRKF_OFFSET); - PREV_PRINT_REGISTER(isp, WSDR_ADDR); - PREV_PRINT_REGISTER(isp, WADD_OFFSET); - PREV_PRINT_REGISTER(isp, AVE); - PREV_PRINT_REGISTER(isp, HMED); - PREV_PRINT_REGISTER(isp, NF); - PREV_PRINT_REGISTER(isp, WB_DGAIN); - PREV_PRINT_REGISTER(isp, WBGAIN); - PREV_PRINT_REGISTER(isp, WBSEL); - PREV_PRINT_REGISTER(isp, CFA); - PREV_PRINT_REGISTER(isp, BLKADJOFF); - PREV_PRINT_REGISTER(isp, RGB_MAT1); - PREV_PRINT_REGISTER(isp, RGB_MAT2); - PREV_PRINT_REGISTER(isp, RGB_MAT3); - PREV_PRINT_REGISTER(isp, RGB_MAT4); - PREV_PRINT_REGISTER(isp, RGB_MAT5); - PREV_PRINT_REGISTER(isp, RGB_OFF1); - PREV_PRINT_REGISTER(isp, RGB_OFF2); - PREV_PRINT_REGISTER(isp, CSC0); - PREV_PRINT_REGISTER(isp, CSC1); - PREV_PRINT_REGISTER(isp, CSC2); - PREV_PRINT_REGISTER(isp, CSC_OFFSET); - PREV_PRINT_REGISTER(isp, CNT_BRT); - PREV_PRINT_REGISTER(isp, CSUP); - PREV_PRINT_REGISTER(isp, SETUP_YC); - PREV_PRINT_REGISTER(isp, SET_TBL_ADDR); - PREV_PRINT_REGISTER(isp, CDC_THR0); - PREV_PRINT_REGISTER(isp, CDC_THR1); - PREV_PRINT_REGISTER(isp, CDC_THR2); - PREV_PRINT_REGISTER(isp, CDC_THR3); - - dev_dbg(isp->dev, "--------------------------------------------\n"); -} - -/* - * preview_init_params - init image processing parameters. - * @prev: pointer to previewer private structure - */ -static void preview_init_params(struct isp_prev_device *prev) -{ - struct prev_params *params; - unsigned int i; - - spin_lock_init(&prev->params.lock); - - prev->params.active = ~0; - prev->params.params[0].busy = 0; - prev->params.params[0].update = OMAP3ISP_PREV_FEATURES_END - 1; - prev->params.params[1].busy = 0; - prev->params.params[1].update = 0; - - params = &prev->params.params[0]; - - /* Init values */ - params->contrast = ISPPRV_CONTRAST_DEF * ISPPRV_CONTRAST_UNITS; - params->brightness = ISPPRV_BRIGHT_DEF * ISPPRV_BRIGHT_UNITS; - params->cfa.format = OMAP3ISP_CFAFMT_BAYER; - memcpy(params->cfa.table, cfa_coef_table, - sizeof(params->cfa.table)); - params->cfa.gradthrs_horz = FLR_CFA_GRADTHRS_HORZ; - params->cfa.gradthrs_vert = FLR_CFA_GRADTHRS_VERT; - params->csup.gain = FLR_CSUP_GAIN; - params->csup.thres = FLR_CSUP_THRES; - params->csup.hypf_en = 0; - memcpy(params->luma.table, luma_enhance_table, - sizeof(params->luma.table)); - params->nf.spread = FLR_NF_STRGTH; - memcpy(params->nf.table, noise_filter_table, sizeof(params->nf.table)); - params->dcor.couplet_mode_en = 1; - for (i = 0; i < OMAP3ISP_PREV_DETECT_CORRECT_CHANNELS; i++) - params->dcor.detect_correct[i] = DEF_DETECT_CORRECT_VAL; - memcpy(params->gamma.blue, gamma_table, sizeof(params->gamma.blue)); - memcpy(params->gamma.green, gamma_table, sizeof(params->gamma.green)); - memcpy(params->gamma.red, gamma_table, sizeof(params->gamma.red)); - params->wbal.dgain = FLR_WBAL_DGAIN; - params->wbal.coef0 = FLR_WBAL_COEF; - params->wbal.coef1 = FLR_WBAL_COEF; - params->wbal.coef2 = FLR_WBAL_COEF; - params->wbal.coef3 = FLR_WBAL_COEF; - params->blkadj.red = FLR_BLKADJ_RED; - params->blkadj.green = FLR_BLKADJ_GREEN; - params->blkadj.blue = FLR_BLKADJ_BLUE; - params->rgb2rgb = flr_rgb2rgb; - params->csc = flr_prev_csc; - params->yclimit.minC = ISPPRV_YC_MIN; - params->yclimit.maxC = ISPPRV_YC_MAX; - params->yclimit.minY = ISPPRV_YC_MIN; - params->yclimit.maxY = ISPPRV_YC_MAX; - - params->features = OMAP3ISP_PREV_CFA | OMAP3ISP_PREV_DEFECT_COR - | OMAP3ISP_PREV_NF | OMAP3ISP_PREV_GAMMA - | OMAP3ISP_PREV_BLKADJ | OMAP3ISP_PREV_YC_LIMIT - | OMAP3ISP_PREV_RGB2RGB | OMAP3ISP_PREV_COLOR_CONV - | OMAP3ISP_PREV_WB | OMAP3ISP_PREV_BRIGHTNESS - | OMAP3ISP_PREV_CONTRAST; -} - -/* - * preview_max_out_width - Handle previewer hardware ouput limitations - * @isp_revision : ISP revision - * returns maximum width output for current isp revision - */ -static unsigned int preview_max_out_width(struct isp_prev_device *prev) -{ - struct isp_device *isp = to_isp_device(prev); - - switch (isp->revision) { - case ISP_REVISION_1_0: - return PREV_MAX_OUT_WIDTH_REV_1; - - case ISP_REVISION_2_0: - default: - return PREV_MAX_OUT_WIDTH_REV_2; - - case ISP_REVISION_15_0: - return PREV_MAX_OUT_WIDTH_REV_15; - } -} - -static void preview_configure(struct isp_prev_device *prev) -{ - struct isp_device *isp = to_isp_device(prev); - struct v4l2_mbus_framefmt *format; - unsigned long flags; - u32 update; - u32 active; - - spin_lock_irqsave(&prev->params.lock, flags); - /* Mark all active parameters we are going to touch as busy. */ - update = preview_params_lock(prev, 0, false); - active = prev->params.active; - spin_unlock_irqrestore(&prev->params.lock, flags); - - preview_setup_hw(prev, update, active); - - if (prev->output & PREVIEW_OUTPUT_MEMORY) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_SDRPORT); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_SDRPORT); - - if (prev->output & PREVIEW_OUTPUT_RESIZER) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_RSZPORT); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_RSZPORT); - - /* PREV_PAD_SINK */ - format = &prev->formats[PREV_PAD_SINK]; - - preview_adjust_bandwidth(prev); - - preview_config_input_format(prev, format); - preview_config_input_size(prev, active); - - if (prev->input == PREVIEW_INPUT_CCDC) - preview_config_inlineoffset(prev, 0); - else - preview_config_inlineoffset(prev, - ALIGN(format->width, 0x20) * 2); - - /* PREV_PAD_SOURCE */ - format = &prev->formats[PREV_PAD_SOURCE]; - - if (prev->output & PREVIEW_OUTPUT_MEMORY) - preview_config_outlineoffset(prev, - ALIGN(format->width, 0x10) * 2); - - preview_config_averager(prev, 0); - preview_config_ycpos(prev, format->code); - - spin_lock_irqsave(&prev->params.lock, flags); - preview_params_unlock(prev, update, false); - spin_unlock_irqrestore(&prev->params.lock, flags); -} - -/* ----------------------------------------------------------------------------- - * Interrupt handling - */ - -static void preview_enable_oneshot(struct isp_prev_device *prev) -{ - struct isp_device *isp = to_isp_device(prev); - - /* The PCR.SOURCE bit is automatically reset to 0 when the PCR.ENABLE - * bit is set. As the preview engine is used in single-shot mode, we - * need to set PCR.SOURCE before enabling the preview engine. - */ - if (prev->input == PREVIEW_INPUT_MEMORY) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_SOURCE); - - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_EN | ISPPRV_PCR_ONESHOT); -} - -void omap3isp_preview_isr_frame_sync(struct isp_prev_device *prev) -{ - /* - * If ISP_VIDEO_DMAQUEUE_QUEUED is set, DMA queue had an underrun - * condition, the module was paused and now we have a buffer queued - * on the output again. Restart the pipeline if running in continuous - * mode. - */ - if (prev->state == ISP_PIPELINE_STREAM_CONTINUOUS && - prev->video_out.dmaqueue_flags & ISP_VIDEO_DMAQUEUE_QUEUED) { - preview_enable_oneshot(prev); - isp_video_dmaqueue_flags_clr(&prev->video_out); - } -} - -static void preview_isr_buffer(struct isp_prev_device *prev) -{ - struct isp_pipeline *pipe = to_isp_pipeline(&prev->subdev.entity); - struct isp_buffer *buffer; - int restart = 0; - - if (prev->input == PREVIEW_INPUT_MEMORY) { - buffer = omap3isp_video_buffer_next(&prev->video_in); - if (buffer != NULL) - preview_set_inaddr(prev, buffer->isp_addr); - pipe->state |= ISP_PIPELINE_IDLE_INPUT; - } - - if (prev->output & PREVIEW_OUTPUT_MEMORY) { - buffer = omap3isp_video_buffer_next(&prev->video_out); - if (buffer != NULL) { - preview_set_outaddr(prev, buffer->isp_addr); - restart = 1; - } - pipe->state |= ISP_PIPELINE_IDLE_OUTPUT; - } - - switch (prev->state) { - case ISP_PIPELINE_STREAM_SINGLESHOT: - if (isp_pipeline_ready(pipe)) - omap3isp_pipeline_set_stream(pipe, - ISP_PIPELINE_STREAM_SINGLESHOT); - break; - - case ISP_PIPELINE_STREAM_CONTINUOUS: - /* If an underrun occurs, the video queue operation handler will - * restart the preview engine. Otherwise restart it immediately. - */ - if (restart) - preview_enable_oneshot(prev); - break; - - case ISP_PIPELINE_STREAM_STOPPED: - default: - return; - } -} - -/* - * omap3isp_preview_isr - ISP preview engine interrupt handler - * - * Manage the preview engine video buffers and configure shadowed registers. - */ -void omap3isp_preview_isr(struct isp_prev_device *prev) -{ - unsigned long flags; - u32 update; - u32 active; - - if (omap3isp_module_sync_is_stopping(&prev->wait, &prev->stopping)) - return; - - spin_lock_irqsave(&prev->params.lock, flags); - preview_params_switch(prev); - update = preview_params_lock(prev, 0, false); - active = prev->params.active; - spin_unlock_irqrestore(&prev->params.lock, flags); - - preview_setup_hw(prev, update, active); - preview_config_input_size(prev, active); - - if (prev->input == PREVIEW_INPUT_MEMORY || - prev->output & PREVIEW_OUTPUT_MEMORY) - preview_isr_buffer(prev); - else if (prev->state == ISP_PIPELINE_STREAM_CONTINUOUS) - preview_enable_oneshot(prev); - - spin_lock_irqsave(&prev->params.lock, flags); - preview_params_unlock(prev, update, false); - spin_unlock_irqrestore(&prev->params.lock, flags); -} - -/* ----------------------------------------------------------------------------- - * ISP video operations - */ - -static int preview_video_queue(struct isp_video *video, - struct isp_buffer *buffer) -{ - struct isp_prev_device *prev = &video->isp->isp_prev; - - if (video->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) - preview_set_inaddr(prev, buffer->isp_addr); - - if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - preview_set_outaddr(prev, buffer->isp_addr); - - return 0; -} - -static const struct isp_video_operations preview_video_ops = { - .queue = preview_video_queue, -}; - -/* ----------------------------------------------------------------------------- - * V4L2 subdev operations - */ - -/* - * preview_s_ctrl - Handle set control subdev method - * @ctrl: pointer to v4l2 control structure - */ -static int preview_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct isp_prev_device *prev = - container_of(ctrl->handler, struct isp_prev_device, ctrls); - - switch (ctrl->id) { - case V4L2_CID_BRIGHTNESS: - preview_update_brightness(prev, ctrl->val); - break; - case V4L2_CID_CONTRAST: - preview_update_contrast(prev, ctrl->val); - break; - } - - return 0; -} - -static const struct v4l2_ctrl_ops preview_ctrl_ops = { - .s_ctrl = preview_s_ctrl, -}; - -/* - * preview_ioctl - Handle preview module private ioctl's - * @prev: pointer to preview context structure - * @cmd: configuration command - * @arg: configuration argument - * return -EINVAL or zero on success - */ -static long preview_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) -{ - struct isp_prev_device *prev = v4l2_get_subdevdata(sd); - - switch (cmd) { - case VIDIOC_OMAP3ISP_PRV_CFG: - return preview_config(prev, arg); - - default: - return -ENOIOCTLCMD; - } -} - -/* - * preview_set_stream - Enable/Disable streaming on preview subdev - * @sd : pointer to v4l2 subdev structure - * @enable: 1 == Enable, 0 == Disable - * return -EINVAL or zero on success - */ -static int preview_set_stream(struct v4l2_subdev *sd, int enable) -{ - struct isp_prev_device *prev = v4l2_get_subdevdata(sd); - struct isp_video *video_out = &prev->video_out; - struct isp_device *isp = to_isp_device(prev); - struct device *dev = to_device(prev); - - if (prev->state == ISP_PIPELINE_STREAM_STOPPED) { - if (enable == ISP_PIPELINE_STREAM_STOPPED) - return 0; - - omap3isp_subclk_enable(isp, OMAP3_ISP_SUBCLK_PREVIEW); - preview_configure(prev); - atomic_set(&prev->stopping, 0); - preview_print_status(prev); - } - - switch (enable) { - case ISP_PIPELINE_STREAM_CONTINUOUS: - if (prev->output & PREVIEW_OUTPUT_MEMORY) - omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_PREVIEW_WRITE); - - if (video_out->dmaqueue_flags & ISP_VIDEO_DMAQUEUE_QUEUED || - !(prev->output & PREVIEW_OUTPUT_MEMORY)) - preview_enable_oneshot(prev); - - isp_video_dmaqueue_flags_clr(video_out); - break; - - case ISP_PIPELINE_STREAM_SINGLESHOT: - if (prev->input == PREVIEW_INPUT_MEMORY) - omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_PREVIEW_READ); - if (prev->output & PREVIEW_OUTPUT_MEMORY) - omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_PREVIEW_WRITE); - - preview_enable_oneshot(prev); - break; - - case ISP_PIPELINE_STREAM_STOPPED: - if (omap3isp_module_sync_idle(&sd->entity, &prev->wait, - &prev->stopping)) - dev_dbg(dev, "%s: stop timeout.\n", sd->name); - omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_PREVIEW_READ); - omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_PREVIEW_WRITE); - omap3isp_subclk_disable(isp, OMAP3_ISP_SUBCLK_PREVIEW); - isp_video_dmaqueue_flags_clr(video_out); - break; - } - - prev->state = enable; - return 0; -} - -static struct v4l2_mbus_framefmt * -__preview_get_format(struct isp_prev_device *prev, struct v4l2_subdev_fh *fh, - unsigned int pad, enum v4l2_subdev_format_whence which) -{ - if (which == V4L2_SUBDEV_FORMAT_TRY) - return v4l2_subdev_get_try_format(fh, pad); - else - return &prev->formats[pad]; -} - -static struct v4l2_rect * -__preview_get_crop(struct isp_prev_device *prev, struct v4l2_subdev_fh *fh, - enum v4l2_subdev_format_whence which) -{ - if (which == V4L2_SUBDEV_FORMAT_TRY) - return v4l2_subdev_get_try_crop(fh, PREV_PAD_SINK); - else - return &prev->crop; -} - -/* previewer format descriptions */ -static const unsigned int preview_input_fmts[] = { - V4L2_MBUS_FMT_Y10_1X10, - V4L2_MBUS_FMT_SGRBG10_1X10, - V4L2_MBUS_FMT_SRGGB10_1X10, - V4L2_MBUS_FMT_SBGGR10_1X10, - V4L2_MBUS_FMT_SGBRG10_1X10, -}; - -static const unsigned int preview_output_fmts[] = { - V4L2_MBUS_FMT_UYVY8_1X16, - V4L2_MBUS_FMT_YUYV8_1X16, -}; - -/* - * preview_try_format - Validate a format - * @prev: ISP preview engine - * @fh: V4L2 subdev file handle - * @pad: pad number - * @fmt: format to be validated - * @which: try/active format selector - * - * Validate and adjust the given format for the given pad based on the preview - * engine limits and the format and crop rectangles on other pads. - */ -static void preview_try_format(struct isp_prev_device *prev, - struct v4l2_subdev_fh *fh, unsigned int pad, - struct v4l2_mbus_framefmt *fmt, - enum v4l2_subdev_format_whence which) -{ - enum v4l2_mbus_pixelcode pixelcode; - struct v4l2_rect *crop; - unsigned int i; - - switch (pad) { - case PREV_PAD_SINK: - /* When reading data from the CCDC, the input size has already - * been mangled by the CCDC output pad so it can be accepted - * as-is. - * - * When reading data from memory, clamp the requested width and - * height. The TRM doesn't specify a minimum input height, make - * sure we got enough lines to enable the noise filter and color - * filter array interpolation. - */ - if (prev->input == PREVIEW_INPUT_MEMORY) { - fmt->width = clamp_t(u32, fmt->width, PREV_MIN_IN_WIDTH, - preview_max_out_width(prev)); - fmt->height = clamp_t(u32, fmt->height, - PREV_MIN_IN_HEIGHT, - PREV_MAX_IN_HEIGHT); - } - - fmt->colorspace = V4L2_COLORSPACE_SRGB; - - for (i = 0; i < ARRAY_SIZE(preview_input_fmts); i++) { - if (fmt->code == preview_input_fmts[i]) - break; - } - - /* If not found, use SGRBG10 as default */ - if (i >= ARRAY_SIZE(preview_input_fmts)) - fmt->code = V4L2_MBUS_FMT_SGRBG10_1X10; - break; - - case PREV_PAD_SOURCE: - pixelcode = fmt->code; - *fmt = *__preview_get_format(prev, fh, PREV_PAD_SINK, which); - - switch (pixelcode) { - case V4L2_MBUS_FMT_YUYV8_1X16: - case V4L2_MBUS_FMT_UYVY8_1X16: - fmt->code = pixelcode; - break; - - default: - fmt->code = V4L2_MBUS_FMT_YUYV8_1X16; - break; - } - - /* The preview module output size is configurable through the - * averager (horizontal scaling by 1/1, 1/2, 1/4 or 1/8). This - * is not supported yet, hardcode the output size to the crop - * rectangle size. - */ - crop = __preview_get_crop(prev, fh, which); - fmt->width = crop->width; - fmt->height = crop->height; - - fmt->colorspace = V4L2_COLORSPACE_JPEG; - break; - } - - fmt->field = V4L2_FIELD_NONE; -} - -/* - * preview_try_crop - Validate a crop rectangle - * @prev: ISP preview engine - * @sink: format on the sink pad - * @crop: crop rectangle to be validated - * - * The preview engine crops lines and columns for its internal operation, - * depending on which filters are enabled. Enforce minimum crop margins to - * handle that transparently for userspace. - * - * See the explanation at the PREV_MARGIN_* definitions for more details. - */ -static void preview_try_crop(struct isp_prev_device *prev, - const struct v4l2_mbus_framefmt *sink, - struct v4l2_rect *crop) -{ - unsigned int left = PREV_MARGIN_LEFT; - unsigned int right = sink->width - PREV_MARGIN_RIGHT; - unsigned int top = PREV_MARGIN_TOP; - unsigned int bottom = sink->height - PREV_MARGIN_BOTTOM; - - /* When processing data on-the-fly from the CCDC, at least 2 pixels must - * be cropped from the left and right sides of the image. As we don't - * know which filters will be enabled, increase the left and right - * margins by two. - */ - if (prev->input == PREVIEW_INPUT_CCDC) { - left += 2; - right -= 2; - } - - /* Restrict left/top to even values to keep the Bayer pattern. */ - crop->left &= ~1; - crop->top &= ~1; - - crop->left = clamp_t(u32, crop->left, left, right - PREV_MIN_OUT_WIDTH); - crop->top = clamp_t(u32, crop->top, top, bottom - PREV_MIN_OUT_HEIGHT); - crop->width = clamp_t(u32, crop->width, PREV_MIN_OUT_WIDTH, - right - crop->left); - crop->height = clamp_t(u32, crop->height, PREV_MIN_OUT_HEIGHT, - bottom - crop->top); -} - -/* - * preview_enum_mbus_code - Handle pixel format enumeration - * @sd : pointer to v4l2 subdev structure - * @fh : V4L2 subdev file handle - * @code : pointer to v4l2_subdev_mbus_code_enum structure - * return -EINVAL or zero on success - */ -static int preview_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_mbus_code_enum *code) -{ - switch (code->pad) { - case PREV_PAD_SINK: - if (code->index >= ARRAY_SIZE(preview_input_fmts)) - return -EINVAL; - - code->code = preview_input_fmts[code->index]; - break; - case PREV_PAD_SOURCE: - if (code->index >= ARRAY_SIZE(preview_output_fmts)) - return -EINVAL; - - code->code = preview_output_fmts[code->index]; - break; - default: - return -EINVAL; - } - - return 0; -} - -static int preview_enum_frame_size(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_frame_size_enum *fse) -{ - struct isp_prev_device *prev = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt format; - - if (fse->index != 0) - return -EINVAL; - - format.code = fse->code; - format.width = 1; - format.height = 1; - preview_try_format(prev, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); - fse->min_width = format.width; - fse->min_height = format.height; - - if (format.code != fse->code) - return -EINVAL; - - format.code = fse->code; - format.width = -1; - format.height = -1; - preview_try_format(prev, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); - fse->max_width = format.width; - fse->max_height = format.height; - - return 0; -} - -/* - * preview_get_selection - Retrieve a selection rectangle on a pad - * @sd: ISP preview V4L2 subdevice - * @fh: V4L2 subdev file handle - * @sel: Selection rectangle - * - * The only supported rectangles are the crop rectangles on the sink pad. - * - * Return 0 on success or a negative error code otherwise. - */ -static int preview_get_selection(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_selection *sel) -{ - struct isp_prev_device *prev = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *format; - - if (sel->pad != PREV_PAD_SINK) - return -EINVAL; - - switch (sel->target) { - case V4L2_SEL_TGT_CROP_BOUNDS: - sel->r.left = 0; - sel->r.top = 0; - sel->r.width = INT_MAX; - sel->r.height = INT_MAX; - - format = __preview_get_format(prev, fh, PREV_PAD_SINK, - sel->which); - preview_try_crop(prev, format, &sel->r); - break; - - case V4L2_SEL_TGT_CROP: - sel->r = *__preview_get_crop(prev, fh, sel->which); - break; - - default: - return -EINVAL; - } - - return 0; -} - -/* - * preview_set_selection - Set a selection rectangle on a pad - * @sd: ISP preview V4L2 subdevice - * @fh: V4L2 subdev file handle - * @sel: Selection rectangle - * - * The only supported rectangle is the actual crop rectangle on the sink pad. - * - * Return 0 on success or a negative error code otherwise. - */ -static int preview_set_selection(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_selection *sel) -{ - struct isp_prev_device *prev = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *format; - - if (sel->target != V4L2_SEL_TGT_CROP || - sel->pad != PREV_PAD_SINK) - return -EINVAL; - - /* The crop rectangle can't be changed while streaming. */ - if (prev->state != ISP_PIPELINE_STREAM_STOPPED) - return -EBUSY; - - /* Modifying the crop rectangle always changes the format on the source - * pad. If the KEEP_CONFIG flag is set, just return the current crop - * rectangle. - */ - if (sel->flags & V4L2_SEL_FLAG_KEEP_CONFIG) { - sel->r = *__preview_get_crop(prev, fh, sel->which); - return 0; - } - - format = __preview_get_format(prev, fh, PREV_PAD_SINK, sel->which); - preview_try_crop(prev, format, &sel->r); - *__preview_get_crop(prev, fh, sel->which) = sel->r; - - /* Update the source format. */ - format = __preview_get_format(prev, fh, PREV_PAD_SOURCE, sel->which); - preview_try_format(prev, fh, PREV_PAD_SOURCE, format, sel->which); - - return 0; -} - -/* - * preview_get_format - Handle get format by pads subdev method - * @sd : pointer to v4l2 subdev structure - * @fh : V4L2 subdev file handle - * @fmt: pointer to v4l2 subdev format structure - * return -EINVAL or zero on success - */ -static int preview_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct isp_prev_device *prev = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *format; - - format = __preview_get_format(prev, fh, fmt->pad, fmt->which); - if (format == NULL) - return -EINVAL; - - fmt->format = *format; - return 0; -} - -/* - * preview_set_format - Handle set format by pads subdev method - * @sd : pointer to v4l2 subdev structure - * @fh : V4L2 subdev file handle - * @fmt: pointer to v4l2 subdev format structure - * return -EINVAL or zero on success - */ -static int preview_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct isp_prev_device *prev = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *format; - struct v4l2_rect *crop; - - format = __preview_get_format(prev, fh, fmt->pad, fmt->which); - if (format == NULL) - return -EINVAL; - - preview_try_format(prev, fh, fmt->pad, &fmt->format, fmt->which); - *format = fmt->format; - - /* Propagate the format from sink to source */ - if (fmt->pad == PREV_PAD_SINK) { - /* Reset the crop rectangle. */ - crop = __preview_get_crop(prev, fh, fmt->which); - crop->left = 0; - crop->top = 0; - crop->width = fmt->format.width; - crop->height = fmt->format.height; - - preview_try_crop(prev, &fmt->format, crop); - - /* Update the source format. */ - format = __preview_get_format(prev, fh, PREV_PAD_SOURCE, - fmt->which); - preview_try_format(prev, fh, PREV_PAD_SOURCE, format, - fmt->which); - } - - return 0; -} - -/* - * preview_init_formats - Initialize formats on all pads - * @sd: ISP preview V4L2 subdevice - * @fh: V4L2 subdev file handle - * - * Initialize all pad formats with default values. If fh is not NULL, try - * formats are initialized on the file handle. Otherwise active formats are - * initialized on the device. - */ -static int preview_init_formats(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh) -{ - struct v4l2_subdev_format format; - - memset(&format, 0, sizeof(format)); - format.pad = PREV_PAD_SINK; - format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; - format.format.code = V4L2_MBUS_FMT_SGRBG10_1X10; - format.format.width = 4096; - format.format.height = 4096; - preview_set_format(sd, fh, &format); - - return 0; -} - -/* subdev core operations */ -static const struct v4l2_subdev_core_ops preview_v4l2_core_ops = { - .ioctl = preview_ioctl, -}; - -/* subdev video operations */ -static const struct v4l2_subdev_video_ops preview_v4l2_video_ops = { - .s_stream = preview_set_stream, -}; - -/* subdev pad operations */ -static const struct v4l2_subdev_pad_ops preview_v4l2_pad_ops = { - .enum_mbus_code = preview_enum_mbus_code, - .enum_frame_size = preview_enum_frame_size, - .get_fmt = preview_get_format, - .set_fmt = preview_set_format, - .get_selection = preview_get_selection, - .set_selection = preview_set_selection, -}; - -/* subdev operations */ -static const struct v4l2_subdev_ops preview_v4l2_ops = { - .core = &preview_v4l2_core_ops, - .video = &preview_v4l2_video_ops, - .pad = &preview_v4l2_pad_ops, -}; - -/* subdev internal operations */ -static const struct v4l2_subdev_internal_ops preview_v4l2_internal_ops = { - .open = preview_init_formats, -}; - -/* ----------------------------------------------------------------------------- - * Media entity operations - */ - -/* - * preview_link_setup - Setup previewer connections. - * @entity : Pointer to media entity structure - * @local : Pointer to local pad array - * @remote : Pointer to remote pad array - * @flags : Link flags - * return -EINVAL or zero on success - */ -static int preview_link_setup(struct media_entity *entity, - const struct media_pad *local, - const struct media_pad *remote, u32 flags) -{ - struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); - struct isp_prev_device *prev = v4l2_get_subdevdata(sd); - - switch (local->index | media_entity_type(remote->entity)) { - case PREV_PAD_SINK | MEDIA_ENT_T_DEVNODE: - /* read from memory */ - if (flags & MEDIA_LNK_FL_ENABLED) { - if (prev->input == PREVIEW_INPUT_CCDC) - return -EBUSY; - prev->input = PREVIEW_INPUT_MEMORY; - } else { - if (prev->input == PREVIEW_INPUT_MEMORY) - prev->input = PREVIEW_INPUT_NONE; - } - break; - - case PREV_PAD_SINK | MEDIA_ENT_T_V4L2_SUBDEV: - /* read from ccdc */ - if (flags & MEDIA_LNK_FL_ENABLED) { - if (prev->input == PREVIEW_INPUT_MEMORY) - return -EBUSY; - prev->input = PREVIEW_INPUT_CCDC; - } else { - if (prev->input == PREVIEW_INPUT_CCDC) - prev->input = PREVIEW_INPUT_NONE; - } - break; - - /* - * The ISP core doesn't support pipelines with multiple video outputs. - * Revisit this when it will be implemented, and return -EBUSY for now. - */ - - case PREV_PAD_SOURCE | MEDIA_ENT_T_DEVNODE: - /* write to memory */ - if (flags & MEDIA_LNK_FL_ENABLED) { - if (prev->output & ~PREVIEW_OUTPUT_MEMORY) - return -EBUSY; - prev->output |= PREVIEW_OUTPUT_MEMORY; - } else { - prev->output &= ~PREVIEW_OUTPUT_MEMORY; - } - break; - - case PREV_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV: - /* write to resizer */ - if (flags & MEDIA_LNK_FL_ENABLED) { - if (prev->output & ~PREVIEW_OUTPUT_RESIZER) - return -EBUSY; - prev->output |= PREVIEW_OUTPUT_RESIZER; - } else { - prev->output &= ~PREVIEW_OUTPUT_RESIZER; - } - break; - - default: - return -EINVAL; - } - - return 0; -} - -/* media operations */ -static const struct media_entity_operations preview_media_ops = { - .link_setup = preview_link_setup, - .link_validate = v4l2_subdev_link_validate, -}; - -void omap3isp_preview_unregister_entities(struct isp_prev_device *prev) -{ - v4l2_device_unregister_subdev(&prev->subdev); - omap3isp_video_unregister(&prev->video_in); - omap3isp_video_unregister(&prev->video_out); -} - -int omap3isp_preview_register_entities(struct isp_prev_device *prev, - struct v4l2_device *vdev) -{ - int ret; - - /* Register the subdev and video nodes. */ - ret = v4l2_device_register_subdev(vdev, &prev->subdev); - if (ret < 0) - goto error; - - ret = omap3isp_video_register(&prev->video_in, vdev); - if (ret < 0) - goto error; - - ret = omap3isp_video_register(&prev->video_out, vdev); - if (ret < 0) - goto error; - - return 0; - -error: - omap3isp_preview_unregister_entities(prev); - return ret; -} - -/* ----------------------------------------------------------------------------- - * ISP previewer initialisation and cleanup - */ - -/* - * preview_init_entities - Initialize subdev and media entity. - * @prev : Pointer to preview structure - * return -ENOMEM or zero on success - */ -static int preview_init_entities(struct isp_prev_device *prev) -{ - struct v4l2_subdev *sd = &prev->subdev; - struct media_pad *pads = prev->pads; - struct media_entity *me = &sd->entity; - int ret; - - prev->input = PREVIEW_INPUT_NONE; - - v4l2_subdev_init(sd, &preview_v4l2_ops); - sd->internal_ops = &preview_v4l2_internal_ops; - strlcpy(sd->name, "OMAP3 ISP preview", sizeof(sd->name)); - sd->grp_id = 1 << 16; /* group ID for isp subdevs */ - v4l2_set_subdevdata(sd, prev); - sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - - v4l2_ctrl_handler_init(&prev->ctrls, 2); - v4l2_ctrl_new_std(&prev->ctrls, &preview_ctrl_ops, V4L2_CID_BRIGHTNESS, - ISPPRV_BRIGHT_LOW, ISPPRV_BRIGHT_HIGH, - ISPPRV_BRIGHT_STEP, ISPPRV_BRIGHT_DEF); - v4l2_ctrl_new_std(&prev->ctrls, &preview_ctrl_ops, V4L2_CID_CONTRAST, - ISPPRV_CONTRAST_LOW, ISPPRV_CONTRAST_HIGH, - ISPPRV_CONTRAST_STEP, ISPPRV_CONTRAST_DEF); - v4l2_ctrl_handler_setup(&prev->ctrls); - sd->ctrl_handler = &prev->ctrls; - - pads[PREV_PAD_SINK].flags = MEDIA_PAD_FL_SINK; - pads[PREV_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; - - me->ops = &preview_media_ops; - ret = media_entity_init(me, PREV_PADS_NUM, pads, 0); - if (ret < 0) - return ret; - - preview_init_formats(sd, NULL); - - /* According to the OMAP34xx TRM, video buffers need to be aligned on a - * 32 bytes boundary. However, an undocumented hardware bug requires a - * 64 bytes boundary at the preview engine input. - */ - prev->video_in.type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - prev->video_in.ops = &preview_video_ops; - prev->video_in.isp = to_isp_device(prev); - prev->video_in.capture_mem = PAGE_ALIGN(4096 * 4096) * 2 * 3; - prev->video_in.bpl_alignment = 64; - prev->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - prev->video_out.ops = &preview_video_ops; - prev->video_out.isp = to_isp_device(prev); - prev->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 2 * 3; - prev->video_out.bpl_alignment = 32; - - ret = omap3isp_video_init(&prev->video_in, "preview"); - if (ret < 0) - goto error_video_in; - - ret = omap3isp_video_init(&prev->video_out, "preview"); - if (ret < 0) - goto error_video_out; - - /* Connect the video nodes to the previewer subdev. */ - ret = media_entity_create_link(&prev->video_in.video.entity, 0, - &prev->subdev.entity, PREV_PAD_SINK, 0); - if (ret < 0) - goto error_link; - - ret = media_entity_create_link(&prev->subdev.entity, PREV_PAD_SOURCE, - &prev->video_out.video.entity, 0, 0); - if (ret < 0) - goto error_link; - - return 0; - -error_link: - omap3isp_video_cleanup(&prev->video_out); -error_video_out: - omap3isp_video_cleanup(&prev->video_in); -error_video_in: - media_entity_cleanup(&prev->subdev.entity); - return ret; -} - -/* - * omap3isp_preview_init - Previewer initialization. - * @dev : Pointer to ISP device - * return -ENOMEM or zero on success - */ -int omap3isp_preview_init(struct isp_device *isp) -{ - struct isp_prev_device *prev = &isp->isp_prev; - - init_waitqueue_head(&prev->wait); - - preview_init_params(prev); - - return preview_init_entities(prev); -} - -void omap3isp_preview_cleanup(struct isp_device *isp) -{ - struct isp_prev_device *prev = &isp->isp_prev; - - v4l2_ctrl_handler_free(&prev->ctrls); - omap3isp_video_cleanup(&prev->video_in); - omap3isp_video_cleanup(&prev->video_out); - media_entity_cleanup(&prev->subdev.entity); -} |
