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authorPratyush Yadav <p.yadav@ti.com>2022-01-21 19:59:00 +0530
committerMauro Carvalho Chehab <mchehab@kernel.org>2022-03-18 05:58:35 +0100
commit8148baabd1c4b02c0af3002d59a1c92975d2e719 (patch)
treefb0af1a4704e213c6298dff4837eb230b8ebd95b /drivers/media/platform/ti-vpe/csc.c
parent012e3ca3cb4d7f50699b983af86532aa92faa90f (diff)
media: platform: re-structure TI drivers
The ti-vpe/ sub-directory does not only contain the VPE-specific things. It also contains the CAL driver, which is a completely different subsystem. This is also not a good place to add new drivers for other TI platforms since they will all get mixed up. Separate the VPE and CAL parts into different sub-directories and rename the ti-vpe/ sub-directory to ti/. This is now the place where new TI platform drivers can be added. [mchehab: rebased to apple on the top of media/platform/Kconfig series] Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/platform/ti-vpe/csc.c')
-rw-r--r--drivers/media/platform/ti-vpe/csc.c279
1 files changed, 0 insertions, 279 deletions
diff --git a/drivers/media/platform/ti-vpe/csc.c b/drivers/media/platform/ti-vpe/csc.c
deleted file mode 100644
index ff15bc589f1b..000000000000
--- a/drivers/media/platform/ti-vpe/csc.c
+++ /dev/null
@@ -1,279 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Color space converter library
- *
- * Copyright (c) 2013 Texas Instruments Inc.
- *
- * David Griego, <dagriego@biglakesoftware.com>
- * Dale Farnsworth, <dale@farnsworth.org>
- * Archit Taneja, <archit@ti.com>
- */
-
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/videodev2.h>
-#include <media/v4l2-common.h>
-
-#include "csc.h"
-
-/*
- * 12 coefficients in the order:
- * a0, b0, c0, a1, b1, c1, a2, b2, c2, d0, d1, d2
- */
-struct quantization {
- u16 coeff[12];
-};
-
-struct colorspace {
- struct quantization limited;
- struct quantization full;
-};
-
-struct encoding_direction {
- struct colorspace r601;
- struct colorspace r709;
-};
-
-struct csc_coeffs {
- struct encoding_direction y2r;
- struct encoding_direction r2y;
-};
-
-/* default colorspace coefficients */
-static struct csc_coeffs csc_coeffs = {
- .y2r = {
- .r601 = {
- .limited = {
- { /* SDTV */
- 0x0400, 0x0000, 0x057D, 0x0400, 0x1EA7, 0x1D35,
- 0x0400, 0x06EF, 0x1FFE, 0x0D40, 0x0210, 0x0C88,
- }
- },
- .full = {
- { /* SDTV */
- 0x04A8, 0x1FFE, 0x0662, 0x04A8, 0x1E6F, 0x1CBF,
- 0x04A8, 0x0812, 0x1FFF, 0x0C84, 0x0220, 0x0BAC,
- }
- },
- },
- .r709 = {
- .limited = {
- { /* HDTV */
- 0x0400, 0x0000, 0x0629, 0x0400, 0x1F45, 0x1E2B,
- 0x0400, 0x0742, 0x0000, 0x0CEC, 0x0148, 0x0C60,
- }
- },
- .full = {
- { /* HDTV */
- 0x04A8, 0x0000, 0x072C, 0x04A8, 0x1F26, 0x1DDE,
- 0x04A8, 0x0873, 0x0000, 0x0C20, 0x0134, 0x0B7C,
- }
- },
- },
- },
- .r2y = {
- .r601 = {
- .limited = {
- { /* SDTV */
- 0x0132, 0x0259, 0x0075, 0x1F50, 0x1EA5, 0x020B,
- 0x020B, 0x1E4A, 0x1FAB, 0x0000, 0x0200, 0x0200,
- }
- },
- .full = {
- { /* SDTV */
- 0x0107, 0x0204, 0x0064, 0x1F68, 0x1ED6, 0x01C2,
- 0x01C2, 0x1E87, 0x1FB7, 0x0040, 0x0200, 0x0200,
- }
- },
- },
- .r709 = {
- .limited = {
- { /* HDTV */
- 0x00DA, 0x02DC, 0x004A, 0x1F88, 0x1E6C, 0x020C,
- 0x020C, 0x1E24, 0x1FD0, 0x0000, 0x0200, 0x0200,
- }
- },
- .full = {
- { /* HDTV */
- 0x00bb, 0x0275, 0x003f, 0x1f99, 0x1ea5, 0x01c2,
- 0x01c2, 0x1e67, 0x1fd7, 0x0040, 0x0200, 0x0200,
- }
- },
- },
- },
-
-};
-
-void csc_dump_regs(struct csc_data *csc)
-{
- struct device *dev = &csc->pdev->dev;
-
-#define DUMPREG(r) dev_dbg(dev, "%-35s %08x\n", #r, \
- ioread32(csc->base + CSC_##r))
-
- dev_dbg(dev, "CSC Registers @ %pa:\n", &csc->res->start);
-
- DUMPREG(CSC00);
- DUMPREG(CSC01);
- DUMPREG(CSC02);
- DUMPREG(CSC03);
- DUMPREG(CSC04);
- DUMPREG(CSC05);
-
-#undef DUMPREG
-}
-EXPORT_SYMBOL(csc_dump_regs);
-
-void csc_set_coeff_bypass(struct csc_data *csc, u32 *csc_reg5)
-{
- *csc_reg5 |= CSC_BYPASS;
-}
-EXPORT_SYMBOL(csc_set_coeff_bypass);
-
-/*
- * set the color space converter coefficient shadow register values
- */
-void csc_set_coeff(struct csc_data *csc, u32 *csc_reg0,
- struct v4l2_format *src_fmt, struct v4l2_format *dst_fmt)
-{
- u32 *csc_reg5 = csc_reg0 + 5;
- u32 *shadow_csc = csc_reg0;
- u16 *coeff, *end_coeff;
- const struct v4l2_pix_format *pix;
- const struct v4l2_pix_format_mplane *mp;
- const struct v4l2_format_info *src_finfo, *dst_finfo;
- enum v4l2_ycbcr_encoding src_ycbcr_enc, dst_ycbcr_enc;
- enum v4l2_quantization src_quantization, dst_quantization;
- u32 src_pixelformat, dst_pixelformat;
-
- if (V4L2_TYPE_IS_MULTIPLANAR(src_fmt->type)) {
- mp = &src_fmt->fmt.pix_mp;
- src_pixelformat = mp->pixelformat;
- src_ycbcr_enc = mp->ycbcr_enc;
- src_quantization = mp->quantization;
- } else {
- pix = &src_fmt->fmt.pix;
- src_pixelformat = pix->pixelformat;
- src_ycbcr_enc = pix->ycbcr_enc;
- src_quantization = pix->quantization;
- }
-
- if (V4L2_TYPE_IS_MULTIPLANAR(dst_fmt->type)) {
- mp = &dst_fmt->fmt.pix_mp;
- dst_pixelformat = mp->pixelformat;
- dst_ycbcr_enc = mp->ycbcr_enc;
- dst_quantization = mp->quantization;
- } else {
- pix = &dst_fmt->fmt.pix;
- dst_pixelformat = pix->pixelformat;
- dst_ycbcr_enc = pix->ycbcr_enc;
- dst_quantization = pix->quantization;
- }
-
- src_finfo = v4l2_format_info(src_pixelformat);
- dst_finfo = v4l2_format_info(dst_pixelformat);
-
- if (v4l2_is_format_yuv(src_finfo) &&
- v4l2_is_format_rgb(dst_finfo)) {
- /* Y2R */
-
- /*
- * These are not the standard default values but are
- * set this way for historical compatibility
- */
- if (src_ycbcr_enc == V4L2_YCBCR_ENC_DEFAULT)
- src_ycbcr_enc = V4L2_YCBCR_ENC_601;
-
- if (src_quantization == V4L2_QUANTIZATION_DEFAULT)
- src_quantization = V4L2_QUANTIZATION_FULL_RANGE;
-
- if (src_ycbcr_enc == V4L2_YCBCR_ENC_601) {
- if (src_quantization == V4L2_QUANTIZATION_FULL_RANGE)
- coeff = csc_coeffs.y2r.r601.full.coeff;
- else
- coeff = csc_coeffs.y2r.r601.limited.coeff;
- } else if (src_ycbcr_enc == V4L2_YCBCR_ENC_709) {
- if (src_quantization == V4L2_QUANTIZATION_FULL_RANGE)
- coeff = csc_coeffs.y2r.r709.full.coeff;
- else
- coeff = csc_coeffs.y2r.r709.limited.coeff;
- } else {
- /* Should never reach this, but it keeps gcc happy */
- coeff = csc_coeffs.y2r.r601.full.coeff;
- }
- } else if (v4l2_is_format_rgb(src_finfo) &&
- v4l2_is_format_yuv(dst_finfo)) {
- /* R2Y */
-
- /*
- * These are not the standard default values but are
- * set this way for historical compatibility
- */
- if (dst_ycbcr_enc == V4L2_YCBCR_ENC_DEFAULT)
- dst_ycbcr_enc = V4L2_YCBCR_ENC_601;
-
- if (dst_quantization == V4L2_QUANTIZATION_DEFAULT)
- dst_quantization = V4L2_QUANTIZATION_FULL_RANGE;
-
- if (dst_ycbcr_enc == V4L2_YCBCR_ENC_601) {
- if (dst_quantization == V4L2_QUANTIZATION_FULL_RANGE)
- coeff = csc_coeffs.r2y.r601.full.coeff;
- else
- coeff = csc_coeffs.r2y.r601.limited.coeff;
- } else if (dst_ycbcr_enc == V4L2_YCBCR_ENC_709) {
- if (dst_quantization == V4L2_QUANTIZATION_FULL_RANGE)
- coeff = csc_coeffs.r2y.r709.full.coeff;
- else
- coeff = csc_coeffs.r2y.r709.limited.coeff;
- } else {
- /* Should never reach this, but it keeps gcc happy */
- coeff = csc_coeffs.r2y.r601.full.coeff;
- }
- } else {
- *csc_reg5 |= CSC_BYPASS;
- return;
- }
-
- end_coeff = coeff + 12;
-
- for (; coeff < end_coeff; coeff += 2)
- *shadow_csc++ = (*(coeff + 1) << 16) | *coeff;
-}
-EXPORT_SYMBOL(csc_set_coeff);
-
-struct csc_data *csc_create(struct platform_device *pdev, const char *res_name)
-{
- struct csc_data *csc;
-
- dev_dbg(&pdev->dev, "csc_create\n");
-
- csc = devm_kzalloc(&pdev->dev, sizeof(*csc), GFP_KERNEL);
- if (!csc) {
- dev_err(&pdev->dev, "couldn't alloc csc_data\n");
- return ERR_PTR(-ENOMEM);
- }
-
- csc->pdev = pdev;
-
- csc->res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
- res_name);
- if (csc->res == NULL) {
- dev_err(&pdev->dev, "missing '%s' platform resources data\n",
- res_name);
- return ERR_PTR(-ENODEV);
- }
-
- csc->base = devm_ioremap_resource(&pdev->dev, csc->res);
- if (IS_ERR(csc->base))
- return ERR_CAST(csc->base);
-
- return csc;
-}
-EXPORT_SYMBOL(csc_create);
-
-MODULE_DESCRIPTION("TI VIP/VPE Color Space Converter");
-MODULE_AUTHOR("Texas Instruments Inc.");
-MODULE_LICENSE("GPL v2");