diff options
author | Pratyush Yadav <p.yadav@ti.com> | 2022-01-21 19:59:00 +0530 |
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committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-03-18 05:58:35 +0100 |
commit | 8148baabd1c4b02c0af3002d59a1c92975d2e719 (patch) | |
tree | fb0af1a4704e213c6298dff4837eb230b8ebd95b /drivers/media/platform/ti-vpe/csc.c | |
parent | 012e3ca3cb4d7f50699b983af86532aa92faa90f (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.c | 279 |
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"); |