123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071107210731074107510761077107810791080108110821083108410851086108710881089109010911092109310941095109610971098109911001101110211031104110511061107110811091110111111121113111411151116111711181119112011211122112311241125112611271128112911301131113211331134113511361137113811391140114111421143114411451146114711481149115011511152115311541155115611571158115911601161116211631164116511661167116811691170117111721173117411751176117711781179118011811182118311841185118611871188118911901191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260126112621263126412651266126712681269127012711272127312741275127612771278127912801281128212831284128512861287128812891290129112921293129412951296129712981299130013011302130313041305130613071308130913101311131213131314131513161317131813191320132113221323132413251326132713281329133013311332133313341335133613371338133913401341134213431344134513461347134813491350135113521353135413551356135713581359136013611362136313641365136613671368136913701371137213731374137513761377137813791380138113821383138413851386138713881389139013911392139313941395139613971398139914001401140214031404140514061407140814091410141114121413141414151416141714181419142014211422142314241425142614271428142914301431143214331434143514361437143814391440144114421443144414451446144714481449145014511452145314541455145614571458145914601461146214631464146514661467146814691470147114721473147414751476147714781479148014811482148314841485148614871488148914901491149214931494149514961497149814991500150115021503150415051506150715081509151015111512151315141515151615171518151915201521152215231524152515261527152815291530153115321533153415351536153715381539154015411542154315441545154615471548154915501551155215531554155515561557155815591560156115621563156415651566156715681569157015711572157315741575157615771578157915801581158215831584158515861587158815891590159115921593159415951596159715981599160016011602160316041605160616071608160916101611161216131614161516161617161816191620162116221623162416251626162716281629163016311632163316341635163616371638163916401641164216431644164516461647164816491650165116521653165416551656165716581659166016611662166316641665166616671668166916701671167216731674167516761677167816791680168116821683168416851686168716881689169016911692169316941695169616971698169917001701170217031704170517061707170817091710171117121713171417151716171717181719172017211722172317241725172617271728172917301731173217331734173517361737173817391740174117421743174417451746174717481749175017511752175317541755175617571758175917601761176217631764176517661767 |
- // SPDX-License-Identifier: GPL-2.0+
- /*
- * i.MX Pixel Pipeline (PXP) mem-to-mem scaler/CSC/rotator driver
- *
- * Copyright (c) 2018 Pengutronix, Philipp Zabel
- *
- * based on vim2m
- *
- * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
- * Pawel Osciak, <pawel@osciak.com>
- * Marek Szyprowski, <m.szyprowski@samsung.com>
- */
- #include <linux/clk.h>
- #include <linux/delay.h>
- #include <linux/dma-mapping.h>
- #include <linux/interrupt.h>
- #include <linux/io.h>
- #include <linux/iopoll.h>
- #include <linux/module.h>
- #include <linux/of.h>
- #include <linux/sched.h>
- #include <linux/slab.h>
- #include <linux/platform_device.h>
- #include <media/v4l2-mem2mem.h>
- #include <media/v4l2-device.h>
- #include <media/v4l2-ioctl.h>
- #include <media/v4l2-ctrls.h>
- #include <media/v4l2-event.h>
- #include <media/videobuf2-dma-contig.h>
- #include "imx-pxp.h"
- static unsigned int debug;
- module_param(debug, uint, 0644);
- MODULE_PARM_DESC(debug, "activates debug info");
- #define MIN_W 8
- #define MIN_H 8
- #define MAX_W 4096
- #define MAX_H 4096
- #define ALIGN_W 3 /* 8x8 pixel blocks */
- #define ALIGN_H 3
- /* Flags that indicate a format can be used for capture/output */
- #define MEM2MEM_CAPTURE (1 << 0)
- #define MEM2MEM_OUTPUT (1 << 1)
- #define MEM2MEM_NAME "pxp"
- /* Flags that indicate processing mode */
- #define MEM2MEM_HFLIP (1 << 0)
- #define MEM2MEM_VFLIP (1 << 1)
- #define dprintk(dev, fmt, arg...) \
- v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg)
- struct pxp_fmt {
- u32 fourcc;
- int depth;
- /* Types the format can be used for */
- u32 types;
- };
- static struct pxp_fmt formats[] = {
- {
- .fourcc = V4L2_PIX_FMT_XBGR32,
- .depth = 32,
- /* Both capture and output format */
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_ABGR32,
- .depth = 32,
- /* Capture-only format */
- .types = MEM2MEM_CAPTURE,
- }, {
- .fourcc = V4L2_PIX_FMT_BGR24,
- .depth = 24,
- .types = MEM2MEM_CAPTURE,
- }, {
- .fourcc = V4L2_PIX_FMT_RGB565,
- .depth = 16,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_RGB555,
- .depth = 16,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_RGB444,
- .depth = 16,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_VUYA32,
- .depth = 32,
- .types = MEM2MEM_CAPTURE,
- }, {
- .fourcc = V4L2_PIX_FMT_VUYX32,
- .depth = 32,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_UYVY,
- .depth = 16,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_YUYV,
- .depth = 16,
- /* Output-only format */
- .types = MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_VYUY,
- .depth = 16,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_YVYU,
- .depth = 16,
- .types = MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_GREY,
- .depth = 8,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_Y4,
- .depth = 4,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_NV16,
- .depth = 16,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_NV12,
- .depth = 12,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_NV21,
- .depth = 12,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_NV61,
- .depth = 16,
- .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_YUV422P,
- .depth = 16,
- .types = MEM2MEM_OUTPUT,
- }, {
- .fourcc = V4L2_PIX_FMT_YUV420,
- .depth = 12,
- .types = MEM2MEM_OUTPUT,
- },
- };
- #define NUM_FORMATS ARRAY_SIZE(formats)
- /* Per-queue, driver-specific private data */
- struct pxp_q_data {
- unsigned int width;
- unsigned int height;
- unsigned int bytesperline;
- unsigned int sizeimage;
- unsigned int sequence;
- struct pxp_fmt *fmt;
- enum v4l2_ycbcr_encoding ycbcr_enc;
- enum v4l2_quantization quant;
- };
- enum {
- V4L2_M2M_SRC = 0,
- V4L2_M2M_DST = 1,
- };
- static struct pxp_fmt *find_format(struct v4l2_format *f)
- {
- struct pxp_fmt *fmt;
- unsigned int k;
- for (k = 0; k < NUM_FORMATS; k++) {
- fmt = &formats[k];
- if (fmt->fourcc == f->fmt.pix.pixelformat)
- break;
- }
- if (k == NUM_FORMATS)
- return NULL;
- return &formats[k];
- }
- struct pxp_dev {
- struct v4l2_device v4l2_dev;
- struct video_device vfd;
- struct clk *clk;
- void __iomem *mmio;
- atomic_t num_inst;
- struct mutex dev_mutex;
- spinlock_t irqlock;
- struct v4l2_m2m_dev *m2m_dev;
- };
- struct pxp_ctx {
- struct v4l2_fh fh;
- struct pxp_dev *dev;
- struct v4l2_ctrl_handler hdl;
- /* Abort requested by m2m */
- int aborting;
- /* Processing mode */
- int mode;
- u8 alpha_component;
- enum v4l2_colorspace colorspace;
- enum v4l2_xfer_func xfer_func;
- /* Source and destination queue data */
- struct pxp_q_data q_data[2];
- };
- static inline struct pxp_ctx *file2ctx(struct file *file)
- {
- return container_of(file->private_data, struct pxp_ctx, fh);
- }
- static struct pxp_q_data *get_q_data(struct pxp_ctx *ctx,
- enum v4l2_buf_type type)
- {
- if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
- return &ctx->q_data[V4L2_M2M_SRC];
- else
- return &ctx->q_data[V4L2_M2M_DST];
- }
- static u32 pxp_v4l2_pix_fmt_to_ps_format(u32 v4l2_pix_fmt)
- {
- switch (v4l2_pix_fmt) {
- case V4L2_PIX_FMT_XBGR32: return BV_PXP_PS_CTRL_FORMAT__RGB888;
- case V4L2_PIX_FMT_RGB555: return BV_PXP_PS_CTRL_FORMAT__RGB555;
- case V4L2_PIX_FMT_RGB444: return BV_PXP_PS_CTRL_FORMAT__RGB444;
- case V4L2_PIX_FMT_RGB565: return BV_PXP_PS_CTRL_FORMAT__RGB565;
- case V4L2_PIX_FMT_VUYX32: return BV_PXP_PS_CTRL_FORMAT__YUV1P444;
- case V4L2_PIX_FMT_UYVY: return BV_PXP_PS_CTRL_FORMAT__UYVY1P422;
- case V4L2_PIX_FMT_YUYV: return BM_PXP_PS_CTRL_WB_SWAP |
- BV_PXP_PS_CTRL_FORMAT__UYVY1P422;
- case V4L2_PIX_FMT_VYUY: return BV_PXP_PS_CTRL_FORMAT__VYUY1P422;
- case V4L2_PIX_FMT_YVYU: return BM_PXP_PS_CTRL_WB_SWAP |
- BV_PXP_PS_CTRL_FORMAT__VYUY1P422;
- case V4L2_PIX_FMT_GREY: return BV_PXP_PS_CTRL_FORMAT__Y8;
- default:
- case V4L2_PIX_FMT_Y4: return BV_PXP_PS_CTRL_FORMAT__Y4;
- case V4L2_PIX_FMT_NV16: return BV_PXP_PS_CTRL_FORMAT__YUV2P422;
- case V4L2_PIX_FMT_NV12: return BV_PXP_PS_CTRL_FORMAT__YUV2P420;
- case V4L2_PIX_FMT_NV21: return BV_PXP_PS_CTRL_FORMAT__YVU2P420;
- case V4L2_PIX_FMT_NV61: return BV_PXP_PS_CTRL_FORMAT__YVU2P422;
- case V4L2_PIX_FMT_YUV422P: return BV_PXP_PS_CTRL_FORMAT__YUV422;
- case V4L2_PIX_FMT_YUV420: return BV_PXP_PS_CTRL_FORMAT__YUV420;
- }
- }
- static u32 pxp_v4l2_pix_fmt_to_out_format(u32 v4l2_pix_fmt)
- {
- switch (v4l2_pix_fmt) {
- case V4L2_PIX_FMT_XBGR32: return BV_PXP_OUT_CTRL_FORMAT__RGB888;
- case V4L2_PIX_FMT_ABGR32: return BV_PXP_OUT_CTRL_FORMAT__ARGB8888;
- case V4L2_PIX_FMT_BGR24: return BV_PXP_OUT_CTRL_FORMAT__RGB888P;
- /* Missing V4L2 pixel formats for ARGB1555 and ARGB4444 */
- case V4L2_PIX_FMT_RGB555: return BV_PXP_OUT_CTRL_FORMAT__RGB555;
- case V4L2_PIX_FMT_RGB444: return BV_PXP_OUT_CTRL_FORMAT__RGB444;
- case V4L2_PIX_FMT_RGB565: return BV_PXP_OUT_CTRL_FORMAT__RGB565;
- case V4L2_PIX_FMT_VUYA32:
- case V4L2_PIX_FMT_VUYX32: return BV_PXP_OUT_CTRL_FORMAT__YUV1P444;
- case V4L2_PIX_FMT_UYVY: return BV_PXP_OUT_CTRL_FORMAT__UYVY1P422;
- case V4L2_PIX_FMT_VYUY: return BV_PXP_OUT_CTRL_FORMAT__VYUY1P422;
- case V4L2_PIX_FMT_GREY: return BV_PXP_OUT_CTRL_FORMAT__Y8;
- default:
- case V4L2_PIX_FMT_Y4: return BV_PXP_OUT_CTRL_FORMAT__Y4;
- case V4L2_PIX_FMT_NV16: return BV_PXP_OUT_CTRL_FORMAT__YUV2P422;
- case V4L2_PIX_FMT_NV12: return BV_PXP_OUT_CTRL_FORMAT__YUV2P420;
- case V4L2_PIX_FMT_NV61: return BV_PXP_OUT_CTRL_FORMAT__YVU2P422;
- case V4L2_PIX_FMT_NV21: return BV_PXP_OUT_CTRL_FORMAT__YVU2P420;
- }
- }
- static bool pxp_v4l2_pix_fmt_is_yuv(u32 v4l2_pix_fmt)
- {
- switch (v4l2_pix_fmt) {
- case V4L2_PIX_FMT_VUYA32:
- case V4L2_PIX_FMT_VUYX32:
- case V4L2_PIX_FMT_UYVY:
- case V4L2_PIX_FMT_YUYV:
- case V4L2_PIX_FMT_VYUY:
- case V4L2_PIX_FMT_YVYU:
- case V4L2_PIX_FMT_NV16:
- case V4L2_PIX_FMT_NV12:
- case V4L2_PIX_FMT_NV61:
- case V4L2_PIX_FMT_NV21:
- case V4L2_PIX_FMT_YUV420:
- case V4L2_PIX_FMT_YUV422P:
- case V4L2_PIX_FMT_GREY:
- case V4L2_PIX_FMT_Y4:
- return true;
- default:
- return false;
- }
- }
- static void pxp_setup_csc(struct pxp_ctx *ctx)
- {
- struct pxp_dev *dev = ctx->dev;
- enum v4l2_ycbcr_encoding ycbcr_enc;
- enum v4l2_quantization quantization;
- if (pxp_v4l2_pix_fmt_is_yuv(ctx->q_data[V4L2_M2M_SRC].fmt->fourcc) &&
- !pxp_v4l2_pix_fmt_is_yuv(ctx->q_data[V4L2_M2M_DST].fmt->fourcc)) {
- /*
- * CSC1 YUV/YCbCr to RGB conversion is implemented as follows:
- *
- * |R| |C0 0 C1| |Y + Yoffset |
- * |G| = |C0 C3 C2| * |Cb + UVoffset|
- * |B| |C0 C4 0 | |Cr + UVoffset|
- *
- * Results are clamped to 0..255.
- *
- * BT.601 limited range:
- *
- * |R| |1.1644 0.0000 1.5960| |Y - 16 |
- * |G| = |1.1644 -0.3917 -0.8129| * |Cb - 128|
- * |B| |1.1644 2.0172 0.0000| |Cr - 128|
- */
- static const u32 csc1_coef_bt601_lim[3] = {
- BM_PXP_CSC1_COEF0_YCBCR_MODE |
- BF_PXP_CSC1_COEF0_C0(0x12a) | /* 1.1641 (-0.03 %) */
- BF_PXP_CSC1_COEF0_UV_OFFSET(-128) |
- BF_PXP_CSC1_COEF0_Y_OFFSET(-16),
- BF_PXP_CSC1_COEF1_C1(0x198) | /* 1.5938 (-0.23 %) */
- BF_PXP_CSC1_COEF1_C4(0x204), /* 2.0156 (-0.16 %) */
- BF_PXP_CSC1_COEF2_C2(0x730) | /* -0.8125 (+0.04 %) */
- BF_PXP_CSC1_COEF2_C3(0x79c), /* -0.3906 (+0.11 %) */
- };
- /*
- * BT.601 full range:
- *
- * |R| |1.0000 0.0000 1.4020| |Y + 0 |
- * |G| = |1.0000 -0.3441 -0.7141| * |Cb - 128|
- * |B| |1.0000 1.7720 0.0000| |Cr - 128|
- */
- static const u32 csc1_coef_bt601_full[3] = {
- BM_PXP_CSC1_COEF0_YCBCR_MODE |
- BF_PXP_CSC1_COEF0_C0(0x100) | /* 1.0000 (+0.00 %) */
- BF_PXP_CSC1_COEF0_UV_OFFSET(-128) |
- BF_PXP_CSC1_COEF0_Y_OFFSET(0),
- BF_PXP_CSC1_COEF1_C1(0x166) | /* 1.3984 (-0.36 %) */
- BF_PXP_CSC1_COEF1_C4(0x1c5), /* 1.7695 (-0.25 %) */
- BF_PXP_CSC1_COEF2_C2(0x74a) | /* -0.7109 (+0.32 %) */
- BF_PXP_CSC1_COEF2_C3(0x7a8), /* -0.3438 (+0.04 %) */
- };
- /*
- * Rec.709 limited range:
- *
- * |R| |1.1644 0.0000 1.7927| |Y - 16 |
- * |G| = |1.1644 -0.2132 -0.5329| * |Cb - 128|
- * |B| |1.1644 2.1124 0.0000| |Cr - 128|
- */
- static const u32 csc1_coef_rec709_lim[3] = {
- BM_PXP_CSC1_COEF0_YCBCR_MODE |
- BF_PXP_CSC1_COEF0_C0(0x12a) | /* 1.1641 (-0.03 %) */
- BF_PXP_CSC1_COEF0_UV_OFFSET(-128) |
- BF_PXP_CSC1_COEF0_Y_OFFSET(-16),
- BF_PXP_CSC1_COEF1_C1(0x1ca) | /* 1.7891 (-0.37 %) */
- BF_PXP_CSC1_COEF1_C4(0x21c), /* 2.1094 (-0.30 %) */
- BF_PXP_CSC1_COEF2_C2(0x778) | /* -0.5312 (+0.16 %) */
- BF_PXP_CSC1_COEF2_C3(0x7ca), /* -0.2109 (+0.23 %) */
- };
- /*
- * Rec.709 full range:
- *
- * |R| |1.0000 0.0000 1.5748| |Y + 0 |
- * |G| = |1.0000 -0.1873 -0.4681| * |Cb - 128|
- * |B| |1.0000 1.8556 0.0000| |Cr - 128|
- */
- static const u32 csc1_coef_rec709_full[3] = {
- BM_PXP_CSC1_COEF0_YCBCR_MODE |
- BF_PXP_CSC1_COEF0_C0(0x100) | /* 1.0000 (+0.00 %) */
- BF_PXP_CSC1_COEF0_UV_OFFSET(-128) |
- BF_PXP_CSC1_COEF0_Y_OFFSET(0),
- BF_PXP_CSC1_COEF1_C1(0x193) | /* 1.5742 (-0.06 %) */
- BF_PXP_CSC1_COEF1_C4(0x1db), /* 1.8555 (-0.01 %) */
- BF_PXP_CSC1_COEF2_C2(0x789) | /* -0.4648 (+0.33 %) */
- BF_PXP_CSC1_COEF2_C3(0x7d1), /* -0.1836 (+0.37 %) */
- };
- /*
- * BT.2020 limited range:
- *
- * |R| |1.1644 0.0000 1.6787| |Y - 16 |
- * |G| = |1.1644 -0.1874 -0.6505| * |Cb - 128|
- * |B| |1.1644 2.1418 0.0000| |Cr - 128|
- */
- static const u32 csc1_coef_bt2020_lim[3] = {
- BM_PXP_CSC1_COEF0_YCBCR_MODE |
- BF_PXP_CSC1_COEF0_C0(0x12a) | /* 1.1641 (-0.03 %) */
- BF_PXP_CSC1_COEF0_UV_OFFSET(-128) |
- BF_PXP_CSC1_COEF0_Y_OFFSET(-16),
- BF_PXP_CSC1_COEF1_C1(0x1ad) | /* 1.6758 (-0.29 %) */
- BF_PXP_CSC1_COEF1_C4(0x224), /* 2.1406 (-0.11 %) */
- BF_PXP_CSC1_COEF2_C2(0x75a) | /* -0.6484 (+0.20 %) */
- BF_PXP_CSC1_COEF2_C3(0x7d1), /* -0.1836 (+0.38 %) */
- };
- /*
- * BT.2020 full range:
- *
- * |R| |1.0000 0.0000 1.4746| |Y + 0 |
- * |G| = |1.0000 -0.1646 -0.5714| * |Cb - 128|
- * |B| |1.0000 1.8814 0.0000| |Cr - 128|
- */
- static const u32 csc1_coef_bt2020_full[3] = {
- BM_PXP_CSC1_COEF0_YCBCR_MODE |
- BF_PXP_CSC1_COEF0_C0(0x100) | /* 1.0000 (+0.00 %) */
- BF_PXP_CSC1_COEF0_UV_OFFSET(-128) |
- BF_PXP_CSC1_COEF0_Y_OFFSET(0),
- BF_PXP_CSC1_COEF1_C1(0x179) | /* 1.4727 (-0.19 %) */
- BF_PXP_CSC1_COEF1_C4(0x1e1), /* 1.8789 (-0.25 %) */
- BF_PXP_CSC1_COEF2_C2(0x76e) | /* -0.5703 (+0.11 %) */
- BF_PXP_CSC1_COEF2_C3(0x7d6), /* -0.1641 (+0.05 %) */
- };
- /*
- * SMPTE 240m limited range:
- *
- * |R| |1.1644 0.0000 1.7937| |Y - 16 |
- * |G| = |1.1644 -0.2565 -0.5427| * |Cb - 128|
- * |B| |1.1644 2.0798 0.0000| |Cr - 128|
- */
- static const u32 csc1_coef_smpte240m_lim[3] = {
- BM_PXP_CSC1_COEF0_YCBCR_MODE |
- BF_PXP_CSC1_COEF0_C0(0x12a) | /* 1.1641 (-0.03 %) */
- BF_PXP_CSC1_COEF0_UV_OFFSET(-128) |
- BF_PXP_CSC1_COEF0_Y_OFFSET(-16),
- BF_PXP_CSC1_COEF1_C1(0x1cb) | /* 1.7930 (-0.07 %) */
- BF_PXP_CSC1_COEF1_C4(0x214), /* 2.0781 (-0.17 %) */
- BF_PXP_CSC1_COEF2_C2(0x776) | /* -0.5391 (+0.36 %) */
- BF_PXP_CSC1_COEF2_C3(0x7bf), /* -0.2539 (+0.26 %) */
- };
- /*
- * SMPTE 240m full range:
- *
- * |R| |1.0000 0.0000 1.5756| |Y + 0 |
- * |G| = |1.0000 -0.2253 -0.4767| * |Cb - 128|
- * |B| |1.0000 1.8270 0.0000| |Cr - 128|
- */
- static const u32 csc1_coef_smpte240m_full[3] = {
- BM_PXP_CSC1_COEF0_YCBCR_MODE |
- BF_PXP_CSC1_COEF0_C0(0x100) | /* 1.0000 (+0.00 %) */
- BF_PXP_CSC1_COEF0_UV_OFFSET(-128) |
- BF_PXP_CSC1_COEF0_Y_OFFSET(0),
- BF_PXP_CSC1_COEF1_C1(0x193) | /* 1.5742 (-0.14 %) */
- BF_PXP_CSC1_COEF1_C4(0x1d3), /* 1.8242 (-0.28 %) */
- BF_PXP_CSC1_COEF2_C2(0x786) | /* -0.4766 (+0.01 %) */
- BF_PXP_CSC1_COEF2_C3(0x7c7), /* -0.2227 (+0.26 %) */
- };
- const u32 *csc1_coef;
- ycbcr_enc = ctx->q_data[V4L2_M2M_SRC].ycbcr_enc;
- quantization = ctx->q_data[V4L2_M2M_SRC].quant;
- if (ycbcr_enc == V4L2_YCBCR_ENC_601) {
- if (quantization == V4L2_QUANTIZATION_FULL_RANGE)
- csc1_coef = csc1_coef_bt601_full;
- else
- csc1_coef = csc1_coef_bt601_lim;
- } else if (ycbcr_enc == V4L2_YCBCR_ENC_709) {
- if (quantization == V4L2_QUANTIZATION_FULL_RANGE)
- csc1_coef = csc1_coef_rec709_full;
- else
- csc1_coef = csc1_coef_rec709_lim;
- } else if (ycbcr_enc == V4L2_YCBCR_ENC_BT2020) {
- if (quantization == V4L2_QUANTIZATION_FULL_RANGE)
- csc1_coef = csc1_coef_bt2020_full;
- else
- csc1_coef = csc1_coef_bt2020_lim;
- } else {
- if (quantization == V4L2_QUANTIZATION_FULL_RANGE)
- csc1_coef = csc1_coef_smpte240m_full;
- else
- csc1_coef = csc1_coef_smpte240m_lim;
- }
- writel(csc1_coef[0], dev->mmio + HW_PXP_CSC1_COEF0);
- writel(csc1_coef[1], dev->mmio + HW_PXP_CSC1_COEF1);
- writel(csc1_coef[2], dev->mmio + HW_PXP_CSC1_COEF2);
- } else {
- writel(BM_PXP_CSC1_COEF0_BYPASS, dev->mmio + HW_PXP_CSC1_COEF0);
- }
- if (!pxp_v4l2_pix_fmt_is_yuv(ctx->q_data[V4L2_M2M_SRC].fmt->fourcc) &&
- pxp_v4l2_pix_fmt_is_yuv(ctx->q_data[V4L2_M2M_DST].fmt->fourcc)) {
- /*
- * CSC2 RGB to YUV/YCbCr conversion is implemented as follows:
- *
- * |Y | |A1 A2 A3| |R| |D1|
- * |Cb| = |B1 B2 B3| * |G| + |D2|
- * |Cr| |C1 C2 C3| |B| |D3|
- *
- * Results are clamped to 0..255.
- *
- * BT.601 limited range:
- *
- * |Y | | 0.2568 0.5041 0.0979| |R| |16 |
- * |Cb| = |-0.1482 -0.2910 0.4392| * |G| + |128|
- * |Cr| | 0.4392 0.4392 -0.3678| |B| |128|
- */
- static const u32 csc2_coef_bt601_lim[6] = {
- BF_PXP_CSC2_COEF0_A2(0x081) | /* 0.5039 (-0.02 %) */
- BF_PXP_CSC2_COEF0_A1(0x041), /* 0.2539 (-0.29 %) */
- BF_PXP_CSC2_COEF1_B1(0x7db) | /* -0.1445 (+0.37 %) */
- BF_PXP_CSC2_COEF1_A3(0x019), /* 0.0977 (-0.02 %) */
- BF_PXP_CSC2_COEF2_B3(0x070) | /* 0.4375 (-0.17 %) */
- BF_PXP_CSC2_COEF2_B2(0x7b6), /* -0.2891 (+0.20 %) */
- BF_PXP_CSC2_COEF3_C2(0x7a2) | /* -0.3672 (+0.06 %) */
- BF_PXP_CSC2_COEF3_C1(0x070), /* 0.4375 (-0.17 %) */
- BF_PXP_CSC2_COEF4_D1(16) |
- BF_PXP_CSC2_COEF4_C3(0x7ee), /* -0.0703 (+0.11 %) */
- BF_PXP_CSC2_COEF5_D3(128) |
- BF_PXP_CSC2_COEF5_D2(128),
- };
- /*
- * BT.601 full range:
- *
- * |Y | | 0.2990 0.5870 0.1140| |R| |0 |
- * |Cb| = |-0.1687 -0.3313 0.5000| * |G| + |128|
- * |Cr| | 0.5000 0.5000 -0.4187| |B| |128|
- */
- static const u32 csc2_coef_bt601_full[6] = {
- BF_PXP_CSC2_COEF0_A2(0x096) | /* 0.5859 (-0.11 %) */
- BF_PXP_CSC2_COEF0_A1(0x04c), /* 0.2969 (-0.21 %) */
- BF_PXP_CSC2_COEF1_B1(0x7d5) | /* -0.1680 (+0.07 %) */
- BF_PXP_CSC2_COEF1_A3(0x01d), /* 0.1133 (-0.07 %) */
- BF_PXP_CSC2_COEF2_B3(0x080) | /* 0.5000 (+0.00 %) */
- BF_PXP_CSC2_COEF2_B2(0x7ac), /* -0.3281 (+0.32 %) */
- BF_PXP_CSC2_COEF3_C2(0x795) | /* -0.4180 (+0.07 %) */
- BF_PXP_CSC2_COEF3_C1(0x080), /* 0.5000 (+0.00 %) */
- BF_PXP_CSC2_COEF4_D1(0) |
- BF_PXP_CSC2_COEF4_C3(0x7ec), /* -0.0781 (+0.32 %) */
- BF_PXP_CSC2_COEF5_D3(128) |
- BF_PXP_CSC2_COEF5_D2(128),
- };
- /*
- * Rec.709 limited range:
- *
- * |Y | | 0.1826 0.6142 0.0620| |R| |16 |
- * |Cb| = |-0.1007 -0.3385 0.4392| * |G| + |128|
- * |Cr| | 0.4392 0.4392 -0.3990| |B| |128|
- */
- static const u32 csc2_coef_rec709_lim[6] = {
- BF_PXP_CSC2_COEF0_A2(0x09d) | /* 0.6133 (-0.09 %) */
- BF_PXP_CSC2_COEF0_A1(0x02e), /* 0.1797 (-0.29 %) */
- BF_PXP_CSC2_COEF1_B1(0x7e7) | /* -0.0977 (+0.30 %) */
- BF_PXP_CSC2_COEF1_A3(0x00f), /* 0.0586 (-0.34 %) */
- BF_PXP_CSC2_COEF2_B3(0x070) | /* 0.4375 (-0.17 %) */
- BF_PXP_CSC2_COEF2_B2(0x7aa), /* -0.3359 (+0.26 %) */
- BF_PXP_CSC2_COEF3_C2(0x79a) | /* -0.3984 (+0.05 %) */
- BF_PXP_CSC2_COEF3_C1(0x070), /* 0.4375 (-0.17 %) */
- BF_PXP_CSC2_COEF4_D1(16) |
- BF_PXP_CSC2_COEF4_C3(0x7f6), /* -0.0391 (+0.12 %) */
- BF_PXP_CSC2_COEF5_D3(128) |
- BF_PXP_CSC2_COEF5_D2(128),
- };
- /*
- * Rec.709 full range:
- *
- * |Y | | 0.2126 0.7152 0.0722| |R| |0 |
- * |Cb| = |-0.1146 -0.3854 0.5000| * |G| + |128|
- * |Cr| | 0.5000 0.5000 -0.4542| |B| |128|
- */
- static const u32 csc2_coef_rec709_full[6] = {
- BF_PXP_CSC2_COEF0_A2(0x0b7) | /* 0.7148 (-0.04 %) */
- BF_PXP_CSC2_COEF0_A1(0x036), /* 0.2109 (-0.17 %) */
- BF_PXP_CSC2_COEF1_B1(0x7e3) | /* -0.1133 (+0.13 %) */
- BF_PXP_CSC2_COEF1_A3(0x012), /* 0.0703 (-0.19 %) */
- BF_PXP_CSC2_COEF2_B3(0x080) | /* 0.5000 (+0.00 %) */
- BF_PXP_CSC2_COEF2_B2(0x79e), /* -0.3828 (+0.26 %) */
- BF_PXP_CSC2_COEF3_C2(0x78c) | /* -0.4531 (+0.11 %) */
- BF_PXP_CSC2_COEF3_C1(0x080), /* 0.5000 (+0.00 %) */
- BF_PXP_CSC2_COEF4_D1(0) |
- BF_PXP_CSC2_COEF4_C3(0x7f5), /* -0.0430 (+0.28 %) */
- BF_PXP_CSC2_COEF5_D3(128) |
- BF_PXP_CSC2_COEF5_D2(128),
- };
- /*
- * BT.2020 limited range:
- *
- * |Y | | 0.2256 0.5823 0.0509| |R| |16 |
- * |Cb| = |-0.1226 -0.3166 0.4392| * |G| + |128|
- * |Cr| | 0.4392 0.4392 -0.4039| |B| |128|
- */
- static const u32 csc2_coef_bt2020_lim[6] = {
- BF_PXP_CSC2_COEF0_A2(0x095) | /* 0.5820 (-0.03 %) */
- BF_PXP_CSC2_COEF0_A1(0x039), /* 0.2227 (-0.30 %) */
- BF_PXP_CSC2_COEF1_B1(0x7e1) | /* -0.1211 (+0.15 %) */
- BF_PXP_CSC2_COEF1_A3(0x00d), /* 0.0508 (-0.01 %) */
- BF_PXP_CSC2_COEF2_B3(0x070) | /* 0.4375 (-0.17 %) */
- BF_PXP_CSC2_COEF2_B2(0x7af), /* -0.3164 (+0.02 %) */
- BF_PXP_CSC2_COEF3_C2(0x799) | /* -0.4023 (+0.16 %) */
- BF_PXP_CSC2_COEF3_C1(0x070), /* 0.4375 (-0.17 %) */
- BF_PXP_CSC2_COEF4_D1(16) |
- BF_PXP_CSC2_COEF4_C3(0x7f7), /* -0.0352 (+0.02 %) */
- BF_PXP_CSC2_COEF5_D3(128) |
- BF_PXP_CSC2_COEF5_D2(128),
- };
- /*
- * BT.2020 full range:
- *
- * |Y | | 0.2627 0.6780 0.0593| |R| |0 |
- * |Cb| = |-0.1396 -0.3604 0.5000| * |G| + |128|
- * |Cr| | 0.5000 0.5000 -0.4598| |B| |128|
- */
- static const u32 csc2_coef_bt2020_full[6] = {
- BF_PXP_CSC2_COEF0_A2(0x0ad) | /* 0.6758 (-0.22 %) */
- BF_PXP_CSC2_COEF0_A1(0x043), /* 0.2617 (-0.10 %) */
- BF_PXP_CSC2_COEF1_B1(0x7dd) | /* -0.1367 (+0.29 %) */
- BF_PXP_CSC2_COEF1_A3(0x00f), /* 0.0586 (-0.07 %) */
- BF_PXP_CSC2_COEF2_B3(0x080) | /* 0.5000 (+0.00 %) */
- BF_PXP_CSC2_COEF2_B2(0x7a4), /* -0.3594 (+0.10 %) */
- BF_PXP_CSC2_COEF3_C2(0x78b) | /* -0.4570 (+0.28 %) */
- BF_PXP_CSC2_COEF3_C1(0x080), /* 0.5000 (+0.00 %) */
- BF_PXP_CSC2_COEF4_D1(0) |
- BF_PXP_CSC2_COEF4_C3(0x7f6), /* -0.0391 (+0.11 %) */
- BF_PXP_CSC2_COEF5_D3(128) |
- BF_PXP_CSC2_COEF5_D2(128),
- };
- /*
- * SMPTE 240m limited range:
- *
- * |Y | | 0.1821 0.6020 0.0747| |R| |16 |
- * |Cb| = |-0.1019 -0.3373 0.4392| * |G| + |128|
- * |Cr| | 0.4392 0.4392 -0.3909| |B| |128|
- */
- static const u32 csc2_coef_smpte240m_lim[6] = {
- BF_PXP_CSC2_COEF0_A2(0x09a) | /* 0.6016 (-0.05 %) */
- BF_PXP_CSC2_COEF0_A1(0x02e), /* 0.1797 (-0.24 %) */
- BF_PXP_CSC2_COEF1_B1(0x7e6) | /* -0.1016 (+0.03 %) */
- BF_PXP_CSC2_COEF1_A3(0x013), /* 0.0742 (-0.05 %) */
- BF_PXP_CSC2_COEF2_B3(0x070) | /* 0.4375 (-0.17 %) */
- BF_PXP_CSC2_COEF2_B2(0x7aa), /* -0.3359 (+0.14 %) */
- BF_PXP_CSC2_COEF3_C2(0x79c) | /* -0.3906 (+0.03 %) */
- BF_PXP_CSC2_COEF3_C1(0x070), /* 0.4375 (-0.17 %) */
- BF_PXP_CSC2_COEF4_D1(16) |
- BF_PXP_CSC2_COEF4_C3(0x7f4), /* -0.0469 (+0.14 %) */
- BF_PXP_CSC2_COEF5_D3(128) |
- BF_PXP_CSC2_COEF5_D2(128),
- };
- /*
- * SMPTE 240m full range:
- *
- * |Y | | 0.2120 0.7010 0.0870| |R| |0 |
- * |Cb| = |-0.1160 -0.3840 0.5000| * |G| + |128|
- * |Cr| | 0.5000 0.5000 -0.4450| |B| |128|
- */
- static const u32 csc2_coef_smpte240m_full[6] = {
- BF_PXP_CSC2_COEF0_A2(0x0b3) | /* 0.6992 (-0.18 %) */
- BF_PXP_CSC2_COEF0_A1(0x036), /* 0.2109 (-0.11 %) */
- BF_PXP_CSC2_COEF1_B1(0x7e3) | /* -0.1133 (+0.27 %) */
- BF_PXP_CSC2_COEF1_A3(0x016), /* 0.0859 (-0.11 %) */
- BF_PXP_CSC2_COEF2_B3(0x080) | /* 0.5000 (+0.00 %) */
- BF_PXP_CSC2_COEF2_B2(0x79e), /* -0.3828 (+0.12 %) */
- BF_PXP_CSC2_COEF3_C2(0x78f) | /* -0.4414 (+0.36 %) */
- BF_PXP_CSC2_COEF3_C1(0x080), /* 0.5000 (+0.00 %) */
- BF_PXP_CSC2_COEF4_D1(0) |
- BF_PXP_CSC2_COEF4_C3(0x7f2), /* -0.0547 (+0.03 %) */
- BF_PXP_CSC2_COEF5_D3(128) |
- BF_PXP_CSC2_COEF5_D2(128),
- };
- const u32 *csc2_coef;
- u32 csc2_ctrl;
- ycbcr_enc = ctx->q_data[V4L2_M2M_DST].ycbcr_enc;
- quantization = ctx->q_data[V4L2_M2M_DST].quant;
- if (ycbcr_enc == V4L2_YCBCR_ENC_601) {
- if (quantization == V4L2_QUANTIZATION_FULL_RANGE)
- csc2_coef = csc2_coef_bt601_full;
- else
- csc2_coef = csc2_coef_bt601_lim;
- } else if (ycbcr_enc == V4L2_YCBCR_ENC_709) {
- if (quantization == V4L2_QUANTIZATION_FULL_RANGE)
- csc2_coef = csc2_coef_rec709_full;
- else
- csc2_coef = csc2_coef_rec709_lim;
- } else if (ycbcr_enc == V4L2_YCBCR_ENC_BT2020) {
- if (quantization == V4L2_QUANTIZATION_FULL_RANGE)
- csc2_coef = csc2_coef_bt2020_full;
- else
- csc2_coef = csc2_coef_bt2020_lim;
- } else {
- if (quantization == V4L2_QUANTIZATION_FULL_RANGE)
- csc2_coef = csc2_coef_smpte240m_full;
- else
- csc2_coef = csc2_coef_smpte240m_lim;
- }
- if (quantization == V4L2_QUANTIZATION_FULL_RANGE) {
- csc2_ctrl = BV_PXP_CSC2_CTRL_CSC_MODE__RGB2YUV <<
- BP_PXP_CSC2_CTRL_CSC_MODE;
- } else {
- csc2_ctrl = BV_PXP_CSC2_CTRL_CSC_MODE__RGB2YCbCr <<
- BP_PXP_CSC2_CTRL_CSC_MODE;
- }
- writel(csc2_ctrl, dev->mmio + HW_PXP_CSC2_CTRL);
- writel(csc2_coef[0], dev->mmio + HW_PXP_CSC2_COEF0);
- writel(csc2_coef[1], dev->mmio + HW_PXP_CSC2_COEF1);
- writel(csc2_coef[2], dev->mmio + HW_PXP_CSC2_COEF2);
- writel(csc2_coef[3], dev->mmio + HW_PXP_CSC2_COEF3);
- writel(csc2_coef[4], dev->mmio + HW_PXP_CSC2_COEF4);
- writel(csc2_coef[5], dev->mmio + HW_PXP_CSC2_COEF5);
- } else {
- writel(BM_PXP_CSC2_CTRL_BYPASS, dev->mmio + HW_PXP_CSC2_CTRL);
- }
- }
- static int pxp_start(struct pxp_ctx *ctx, struct vb2_v4l2_buffer *in_vb,
- struct vb2_v4l2_buffer *out_vb)
- {
- struct pxp_dev *dev = ctx->dev;
- struct pxp_q_data *q_data;
- u32 src_width, src_height, src_stride, src_fourcc;
- u32 dst_width, dst_height, dst_stride, dst_fourcc;
- dma_addr_t p_in, p_out;
- u32 ctrl, out_ctrl, out_buf, out_buf2, out_pitch, out_lrc, out_ps_ulc;
- u32 out_ps_lrc;
- u32 ps_ctrl, ps_buf, ps_ubuf, ps_vbuf, ps_pitch, ps_scale, ps_offset;
- u32 as_ulc, as_lrc;
- u32 y_size;
- u32 decx, decy, xscale, yscale;
- q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
- src_width = ctx->q_data[V4L2_M2M_SRC].width;
- dst_width = ctx->q_data[V4L2_M2M_DST].width;
- src_height = ctx->q_data[V4L2_M2M_SRC].height;
- dst_height = ctx->q_data[V4L2_M2M_DST].height;
- src_stride = ctx->q_data[V4L2_M2M_SRC].bytesperline;
- dst_stride = ctx->q_data[V4L2_M2M_DST].bytesperline;
- src_fourcc = ctx->q_data[V4L2_M2M_SRC].fmt->fourcc;
- dst_fourcc = ctx->q_data[V4L2_M2M_DST].fmt->fourcc;
- p_in = vb2_dma_contig_plane_dma_addr(&in_vb->vb2_buf, 0);
- p_out = vb2_dma_contig_plane_dma_addr(&out_vb->vb2_buf, 0);
- if (!p_in || !p_out) {
- v4l2_err(&dev->v4l2_dev,
- "Acquiring DMA addresses of buffers failed\n");
- return -EFAULT;
- }
- out_vb->sequence =
- get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE)->sequence++;
- in_vb->sequence = q_data->sequence++;
- out_vb->vb2_buf.timestamp = in_vb->vb2_buf.timestamp;
- if (in_vb->flags & V4L2_BUF_FLAG_TIMECODE)
- out_vb->timecode = in_vb->timecode;
- out_vb->field = in_vb->field;
- out_vb->flags = in_vb->flags &
- (V4L2_BUF_FLAG_TIMECODE |
- V4L2_BUF_FLAG_KEYFRAME |
- V4L2_BUF_FLAG_PFRAME |
- V4L2_BUF_FLAG_BFRAME |
- V4L2_BUF_FLAG_TSTAMP_SRC_MASK);
- /* Rotation disabled, 8x8 block size */
- ctrl = BF_PXP_CTRL_VFLIP0(!!(ctx->mode & MEM2MEM_VFLIP)) |
- BF_PXP_CTRL_HFLIP0(!!(ctx->mode & MEM2MEM_HFLIP));
- /* Always write alpha value as V4L2_CID_ALPHA_COMPONENT */
- out_ctrl = BF_PXP_OUT_CTRL_ALPHA(ctx->alpha_component) |
- BF_PXP_OUT_CTRL_ALPHA_OUTPUT(1) |
- pxp_v4l2_pix_fmt_to_out_format(dst_fourcc);
- out_buf = p_out;
- switch (dst_fourcc) {
- case V4L2_PIX_FMT_NV12:
- case V4L2_PIX_FMT_NV21:
- case V4L2_PIX_FMT_NV16:
- case V4L2_PIX_FMT_NV61:
- out_buf2 = out_buf + dst_stride * dst_height;
- break;
- default:
- out_buf2 = 0;
- }
- out_pitch = BF_PXP_OUT_PITCH_PITCH(dst_stride);
- out_lrc = BF_PXP_OUT_LRC_X(dst_width - 1) |
- BF_PXP_OUT_LRC_Y(dst_height - 1);
- /* PS covers whole output */
- out_ps_ulc = BF_PXP_OUT_PS_ULC_X(0) | BF_PXP_OUT_PS_ULC_Y(0);
- out_ps_lrc = BF_PXP_OUT_PS_LRC_X(dst_width - 1) |
- BF_PXP_OUT_PS_LRC_Y(dst_height - 1);
- /* no AS */
- as_ulc = BF_PXP_OUT_AS_ULC_X(1) | BF_PXP_OUT_AS_ULC_Y(1);
- as_lrc = BF_PXP_OUT_AS_LRC_X(0) | BF_PXP_OUT_AS_LRC_Y(0);
- decx = (src_width <= dst_width) ? 0 : ilog2(src_width / dst_width);
- decy = (src_height <= dst_height) ? 0 : ilog2(src_height / dst_height);
- ps_ctrl = BF_PXP_PS_CTRL_DECX(decx) | BF_PXP_PS_CTRL_DECY(decy) |
- pxp_v4l2_pix_fmt_to_ps_format(src_fourcc);
- ps_buf = p_in;
- y_size = src_stride * src_height;
- switch (src_fourcc) {
- case V4L2_PIX_FMT_YUV420:
- ps_ubuf = ps_buf + y_size;
- ps_vbuf = ps_ubuf + y_size / 4;
- break;
- case V4L2_PIX_FMT_YUV422P:
- ps_ubuf = ps_buf + y_size;
- ps_vbuf = ps_ubuf + y_size / 2;
- break;
- case V4L2_PIX_FMT_NV12:
- case V4L2_PIX_FMT_NV21:
- case V4L2_PIX_FMT_NV16:
- case V4L2_PIX_FMT_NV61:
- ps_ubuf = ps_buf + y_size;
- ps_vbuf = 0;
- break;
- case V4L2_PIX_FMT_GREY:
- case V4L2_PIX_FMT_Y4:
- ps_ubuf = 0;
- /* In grayscale mode, ps_vbuf contents are reused as CbCr */
- ps_vbuf = 0x8080;
- break;
- default:
- ps_ubuf = 0;
- ps_vbuf = 0;
- break;
- }
- ps_pitch = BF_PXP_PS_PITCH_PITCH(src_stride);
- if (decx) {
- xscale = (src_width >> decx) * 0x1000 / dst_width;
- } else {
- switch (src_fourcc) {
- case V4L2_PIX_FMT_UYVY:
- case V4L2_PIX_FMT_YUYV:
- case V4L2_PIX_FMT_VYUY:
- case V4L2_PIX_FMT_YVYU:
- case V4L2_PIX_FMT_NV16:
- case V4L2_PIX_FMT_NV12:
- case V4L2_PIX_FMT_NV21:
- case V4L2_PIX_FMT_NV61:
- case V4L2_PIX_FMT_YUV422P:
- case V4L2_PIX_FMT_YUV420:
- /*
- * This avoids sampling past the right edge for
- * horizontally chroma subsampled formats.
- */
- xscale = (src_width - 2) * 0x1000 / (dst_width - 1);
- break;
- default:
- xscale = (src_width - 1) * 0x1000 / (dst_width - 1);
- break;
- }
- }
- if (decy)
- yscale = (src_height >> decy) * 0x1000 / dst_height;
- else
- yscale = (src_height - 1) * 0x1000 / (dst_height - 1);
- ps_scale = BF_PXP_PS_SCALE_YSCALE(yscale) |
- BF_PXP_PS_SCALE_XSCALE(xscale);
- ps_offset = BF_PXP_PS_OFFSET_YOFFSET(0) | BF_PXP_PS_OFFSET_XOFFSET(0);
- writel(ctrl, dev->mmio + HW_PXP_CTRL);
- /* skip STAT */
- writel(out_ctrl, dev->mmio + HW_PXP_OUT_CTRL);
- writel(out_buf, dev->mmio + HW_PXP_OUT_BUF);
- writel(out_buf2, dev->mmio + HW_PXP_OUT_BUF2);
- writel(out_pitch, dev->mmio + HW_PXP_OUT_PITCH);
- writel(out_lrc, dev->mmio + HW_PXP_OUT_LRC);
- writel(out_ps_ulc, dev->mmio + HW_PXP_OUT_PS_ULC);
- writel(out_ps_lrc, dev->mmio + HW_PXP_OUT_PS_LRC);
- writel(as_ulc, dev->mmio + HW_PXP_OUT_AS_ULC);
- writel(as_lrc, dev->mmio + HW_PXP_OUT_AS_LRC);
- writel(ps_ctrl, dev->mmio + HW_PXP_PS_CTRL);
- writel(ps_buf, dev->mmio + HW_PXP_PS_BUF);
- writel(ps_ubuf, dev->mmio + HW_PXP_PS_UBUF);
- writel(ps_vbuf, dev->mmio + HW_PXP_PS_VBUF);
- writel(ps_pitch, dev->mmio + HW_PXP_PS_PITCH);
- writel(0x00ffffff, dev->mmio + HW_PXP_PS_BACKGROUND_0);
- writel(ps_scale, dev->mmio + HW_PXP_PS_SCALE);
- writel(ps_offset, dev->mmio + HW_PXP_PS_OFFSET);
- /* disable processed surface color keying */
- writel(0x00ffffff, dev->mmio + HW_PXP_PS_CLRKEYLOW_0);
- writel(0x00000000, dev->mmio + HW_PXP_PS_CLRKEYHIGH_0);
- /* disable alpha surface color keying */
- writel(0x00ffffff, dev->mmio + HW_PXP_AS_CLRKEYLOW_0);
- writel(0x00000000, dev->mmio + HW_PXP_AS_CLRKEYHIGH_0);
- /* setup CSC */
- pxp_setup_csc(ctx);
- /* bypass LUT */
- writel(BM_PXP_LUT_CTRL_BYPASS, dev->mmio + HW_PXP_LUT_CTRL);
- writel(BF_PXP_DATA_PATH_CTRL0_MUX15_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX14_SEL(1)|
- BF_PXP_DATA_PATH_CTRL0_MUX13_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX12_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX11_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX10_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX9_SEL(1)|
- BF_PXP_DATA_PATH_CTRL0_MUX8_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX7_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX6_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX5_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX4_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX3_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX2_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX1_SEL(0)|
- BF_PXP_DATA_PATH_CTRL0_MUX0_SEL(0),
- dev->mmio + HW_PXP_DATA_PATH_CTRL0);
- writel(BF_PXP_DATA_PATH_CTRL1_MUX17_SEL(1) |
- BF_PXP_DATA_PATH_CTRL1_MUX16_SEL(1),
- dev->mmio + HW_PXP_DATA_PATH_CTRL1);
- writel(0xffff, dev->mmio + HW_PXP_IRQ_MASK);
- /* ungate, enable PS/AS/OUT and PXP operation */
- writel(BM_PXP_CTRL_IRQ_ENABLE, dev->mmio + HW_PXP_CTRL_SET);
- writel(BM_PXP_CTRL_ENABLE | BM_PXP_CTRL_ENABLE_CSC2 |
- BM_PXP_CTRL_ENABLE_LUT | BM_PXP_CTRL_ENABLE_ROTATE0 |
- BM_PXP_CTRL_ENABLE_PS_AS_OUT, dev->mmio + HW_PXP_CTRL_SET);
- return 0;
- }
- static void pxp_job_finish(struct pxp_dev *dev)
- {
- struct pxp_ctx *curr_ctx;
- struct vb2_v4l2_buffer *src_vb, *dst_vb;
- unsigned long flags;
- curr_ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
- if (curr_ctx == NULL) {
- pr_err("Instance released before the end of transaction\n");
- return;
- }
- src_vb = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx);
- dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx);
- spin_lock_irqsave(&dev->irqlock, flags);
- v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE);
- v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE);
- spin_unlock_irqrestore(&dev->irqlock, flags);
- dprintk(curr_ctx->dev, "Finishing transaction\n");
- v4l2_m2m_job_finish(dev->m2m_dev, curr_ctx->fh.m2m_ctx);
- }
- /*
- * mem2mem callbacks
- */
- static void pxp_device_run(void *priv)
- {
- struct pxp_ctx *ctx = priv;
- struct vb2_v4l2_buffer *src_buf, *dst_buf;
- src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
- dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
- pxp_start(ctx, src_buf, dst_buf);
- }
- static int pxp_job_ready(void *priv)
- {
- struct pxp_ctx *ctx = priv;
- if (v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx) < 1 ||
- v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx) < 1) {
- dprintk(ctx->dev, "Not enough buffers available\n");
- return 0;
- }
- return 1;
- }
- static void pxp_job_abort(void *priv)
- {
- struct pxp_ctx *ctx = priv;
- /* Will cancel the transaction in the next interrupt handler */
- ctx->aborting = 1;
- }
- /*
- * interrupt handler
- */
- static irqreturn_t pxp_irq_handler(int irq, void *dev_id)
- {
- struct pxp_dev *dev = dev_id;
- u32 stat;
- stat = readl(dev->mmio + HW_PXP_STAT);
- if (stat & BM_PXP_STAT_IRQ0) {
- /* we expect x = 0, y = height, irq0 = 1 */
- if (stat & ~(BM_PXP_STAT_BLOCKX | BM_PXP_STAT_BLOCKY |
- BM_PXP_STAT_IRQ0))
- dprintk(dev, "%s: stat = 0x%08x\n", __func__, stat);
- writel(BM_PXP_STAT_IRQ0, dev->mmio + HW_PXP_STAT_CLR);
- pxp_job_finish(dev);
- } else {
- u32 irq = readl(dev->mmio + HW_PXP_IRQ);
- dprintk(dev, "%s: stat = 0x%08x\n", __func__, stat);
- dprintk(dev, "%s: irq = 0x%08x\n", __func__, irq);
- writel(irq, dev->mmio + HW_PXP_IRQ_CLR);
- }
- return IRQ_HANDLED;
- }
- /*
- * video ioctls
- */
- static int pxp_querycap(struct file *file, void *priv,
- struct v4l2_capability *cap)
- {
- strscpy(cap->driver, MEM2MEM_NAME, sizeof(cap->driver));
- strscpy(cap->card, MEM2MEM_NAME, sizeof(cap->card));
- snprintf(cap->bus_info, sizeof(cap->bus_info),
- "platform:%s", MEM2MEM_NAME);
- return 0;
- }
- static int pxp_enum_fmt(struct v4l2_fmtdesc *f, u32 type)
- {
- int i, num;
- struct pxp_fmt *fmt;
- num = 0;
- for (i = 0; i < NUM_FORMATS; ++i) {
- if (formats[i].types & type) {
- /* index-th format of type type found ? */
- if (num == f->index)
- break;
- /*
- * Correct type but haven't reached our index yet,
- * just increment per-type index
- */
- ++num;
- }
- }
- if (i < NUM_FORMATS) {
- /* Format found */
- fmt = &formats[i];
- f->pixelformat = fmt->fourcc;
- return 0;
- }
- /* Format not found */
- return -EINVAL;
- }
- static int pxp_enum_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_fmtdesc *f)
- {
- return pxp_enum_fmt(f, MEM2MEM_CAPTURE);
- }
- static int pxp_enum_fmt_vid_out(struct file *file, void *priv,
- struct v4l2_fmtdesc *f)
- {
- return pxp_enum_fmt(f, MEM2MEM_OUTPUT);
- }
- static int pxp_g_fmt(struct pxp_ctx *ctx, struct v4l2_format *f)
- {
- struct vb2_queue *vq;
- struct pxp_q_data *q_data;
- vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
- if (!vq)
- return -EINVAL;
- q_data = get_q_data(ctx, f->type);
- f->fmt.pix.width = q_data->width;
- f->fmt.pix.height = q_data->height;
- f->fmt.pix.field = V4L2_FIELD_NONE;
- f->fmt.pix.pixelformat = q_data->fmt->fourcc;
- f->fmt.pix.bytesperline = q_data->bytesperline;
- f->fmt.pix.sizeimage = q_data->sizeimage;
- f->fmt.pix.colorspace = ctx->colorspace;
- f->fmt.pix.xfer_func = ctx->xfer_func;
- f->fmt.pix.ycbcr_enc = q_data->ycbcr_enc;
- f->fmt.pix.quantization = q_data->quant;
- return 0;
- }
- static int pxp_g_fmt_vid_out(struct file *file, void *priv,
- struct v4l2_format *f)
- {
- return pxp_g_fmt(file2ctx(file), f);
- }
- static int pxp_g_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
- {
- return pxp_g_fmt(file2ctx(file), f);
- }
- static inline u32 pxp_bytesperline(struct pxp_fmt *fmt, u32 width)
- {
- switch (fmt->fourcc) {
- case V4L2_PIX_FMT_YUV420:
- case V4L2_PIX_FMT_NV12:
- case V4L2_PIX_FMT_NV21:
- case V4L2_PIX_FMT_YUV422P:
- case V4L2_PIX_FMT_NV16:
- case V4L2_PIX_FMT_NV61:
- return width;
- default:
- return (width * fmt->depth) >> 3;
- }
- }
- static inline u32 pxp_sizeimage(struct pxp_fmt *fmt, u32 width, u32 height)
- {
- return (fmt->depth * width * height) >> 3;
- }
- static int pxp_try_fmt(struct v4l2_format *f, struct pxp_fmt *fmt)
- {
- v4l_bound_align_image(&f->fmt.pix.width, MIN_W, MAX_W, ALIGN_W,
- &f->fmt.pix.height, MIN_H, MAX_H, ALIGN_H, 0);
- f->fmt.pix.bytesperline = pxp_bytesperline(fmt, f->fmt.pix.width);
- f->fmt.pix.sizeimage = pxp_sizeimage(fmt, f->fmt.pix.width,
- f->fmt.pix.height);
- f->fmt.pix.field = V4L2_FIELD_NONE;
- return 0;
- }
- static void
- pxp_fixup_colorimetry_cap(struct pxp_ctx *ctx, u32 dst_fourcc,
- enum v4l2_ycbcr_encoding *ycbcr_enc,
- enum v4l2_quantization *quantization)
- {
- bool dst_is_yuv = pxp_v4l2_pix_fmt_is_yuv(dst_fourcc);
- if (pxp_v4l2_pix_fmt_is_yuv(ctx->q_data[V4L2_M2M_SRC].fmt->fourcc) ==
- dst_is_yuv) {
- /*
- * There is no support for conversion between different YCbCr
- * encodings or between RGB limited and full range.
- */
- *ycbcr_enc = ctx->q_data[V4L2_M2M_SRC].ycbcr_enc;
- *quantization = ctx->q_data[V4L2_M2M_SRC].quant;
- } else {
- *ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(ctx->colorspace);
- *quantization = V4L2_MAP_QUANTIZATION_DEFAULT(!dst_is_yuv,
- ctx->colorspace,
- *ycbcr_enc);
- }
- }
- static int pxp_try_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
- {
- struct pxp_fmt *fmt;
- struct pxp_ctx *ctx = file2ctx(file);
- fmt = find_format(f);
- if (!fmt) {
- f->fmt.pix.pixelformat = formats[0].fourcc;
- fmt = find_format(f);
- }
- if (!(fmt->types & MEM2MEM_CAPTURE)) {
- v4l2_err(&ctx->dev->v4l2_dev,
- "Fourcc format (0x%08x) invalid.\n",
- f->fmt.pix.pixelformat);
- return -EINVAL;
- }
- f->fmt.pix.colorspace = ctx->colorspace;
- f->fmt.pix.xfer_func = ctx->xfer_func;
- pxp_fixup_colorimetry_cap(ctx, fmt->fourcc,
- &f->fmt.pix.ycbcr_enc,
- &f->fmt.pix.quantization);
- return pxp_try_fmt(f, fmt);
- }
- static int pxp_try_fmt_vid_out(struct file *file, void *priv,
- struct v4l2_format *f)
- {
- struct pxp_fmt *fmt;
- struct pxp_ctx *ctx = file2ctx(file);
- fmt = find_format(f);
- if (!fmt) {
- f->fmt.pix.pixelformat = formats[0].fourcc;
- fmt = find_format(f);
- }
- if (!(fmt->types & MEM2MEM_OUTPUT)) {
- v4l2_err(&ctx->dev->v4l2_dev,
- "Fourcc format (0x%08x) invalid.\n",
- f->fmt.pix.pixelformat);
- return -EINVAL;
- }
- if (!f->fmt.pix.colorspace)
- f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
- return pxp_try_fmt(f, fmt);
- }
- static int pxp_s_fmt(struct pxp_ctx *ctx, struct v4l2_format *f)
- {
- struct pxp_q_data *q_data;
- struct vb2_queue *vq;
- vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
- if (!vq)
- return -EINVAL;
- q_data = get_q_data(ctx, f->type);
- if (!q_data)
- return -EINVAL;
- if (vb2_is_busy(vq)) {
- v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
- return -EBUSY;
- }
- q_data->fmt = find_format(f);
- q_data->width = f->fmt.pix.width;
- q_data->height = f->fmt.pix.height;
- q_data->bytesperline = f->fmt.pix.bytesperline;
- q_data->sizeimage = f->fmt.pix.sizeimage;
- dprintk(ctx->dev,
- "Setting format for type %d, wxh: %dx%d, fmt: %d\n",
- f->type, q_data->width, q_data->height, q_data->fmt->fourcc);
- return 0;
- }
- static int pxp_s_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
- {
- struct pxp_ctx *ctx = file2ctx(file);
- int ret;
- ret = pxp_try_fmt_vid_cap(file, priv, f);
- if (ret)
- return ret;
- ret = pxp_s_fmt(file2ctx(file), f);
- if (ret)
- return ret;
- ctx->q_data[V4L2_M2M_DST].ycbcr_enc = f->fmt.pix.ycbcr_enc;
- ctx->q_data[V4L2_M2M_DST].quant = f->fmt.pix.quantization;
- return 0;
- }
- static int pxp_s_fmt_vid_out(struct file *file, void *priv,
- struct v4l2_format *f)
- {
- struct pxp_ctx *ctx = file2ctx(file);
- int ret;
- ret = pxp_try_fmt_vid_out(file, priv, f);
- if (ret)
- return ret;
- ret = pxp_s_fmt(file2ctx(file), f);
- if (ret)
- return ret;
- ctx->colorspace = f->fmt.pix.colorspace;
- ctx->xfer_func = f->fmt.pix.xfer_func;
- ctx->q_data[V4L2_M2M_SRC].ycbcr_enc = f->fmt.pix.ycbcr_enc;
- ctx->q_data[V4L2_M2M_SRC].quant = f->fmt.pix.quantization;
- pxp_fixup_colorimetry_cap(ctx, ctx->q_data[V4L2_M2M_DST].fmt->fourcc,
- &ctx->q_data[V4L2_M2M_DST].ycbcr_enc,
- &ctx->q_data[V4L2_M2M_DST].quant);
- return 0;
- }
- static int pxp_s_ctrl(struct v4l2_ctrl *ctrl)
- {
- struct pxp_ctx *ctx =
- container_of(ctrl->handler, struct pxp_ctx, hdl);
- switch (ctrl->id) {
- case V4L2_CID_HFLIP:
- if (ctrl->val)
- ctx->mode |= MEM2MEM_HFLIP;
- else
- ctx->mode &= ~MEM2MEM_HFLIP;
- break;
- case V4L2_CID_VFLIP:
- if (ctrl->val)
- ctx->mode |= MEM2MEM_VFLIP;
- else
- ctx->mode &= ~MEM2MEM_VFLIP;
- break;
- case V4L2_CID_ALPHA_COMPONENT:
- ctx->alpha_component = ctrl->val;
- break;
- default:
- v4l2_err(&ctx->dev->v4l2_dev, "Invalid control\n");
- return -EINVAL;
- }
- return 0;
- }
- static const struct v4l2_ctrl_ops pxp_ctrl_ops = {
- .s_ctrl = pxp_s_ctrl,
- };
- static const struct v4l2_ioctl_ops pxp_ioctl_ops = {
- .vidioc_querycap = pxp_querycap,
- .vidioc_enum_fmt_vid_cap = pxp_enum_fmt_vid_cap,
- .vidioc_g_fmt_vid_cap = pxp_g_fmt_vid_cap,
- .vidioc_try_fmt_vid_cap = pxp_try_fmt_vid_cap,
- .vidioc_s_fmt_vid_cap = pxp_s_fmt_vid_cap,
- .vidioc_enum_fmt_vid_out = pxp_enum_fmt_vid_out,
- .vidioc_g_fmt_vid_out = pxp_g_fmt_vid_out,
- .vidioc_try_fmt_vid_out = pxp_try_fmt_vid_out,
- .vidioc_s_fmt_vid_out = pxp_s_fmt_vid_out,
- .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
- .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
- .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
- .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
- .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
- .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
- .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
- .vidioc_streamon = v4l2_m2m_ioctl_streamon,
- .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
- .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
- .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
- };
- /*
- * Queue operations
- */
- static int pxp_queue_setup(struct vb2_queue *vq,
- unsigned int *nbuffers, unsigned int *nplanes,
- unsigned int sizes[], struct device *alloc_devs[])
- {
- struct pxp_ctx *ctx = vb2_get_drv_priv(vq);
- struct pxp_q_data *q_data;
- unsigned int size, count = *nbuffers;
- q_data = get_q_data(ctx, vq->type);
- size = q_data->sizeimage;
- *nbuffers = count;
- if (*nplanes)
- return sizes[0] < size ? -EINVAL : 0;
- *nplanes = 1;
- sizes[0] = size;
- dprintk(ctx->dev, "get %d buffer(s) of size %d each.\n", count, size);
- return 0;
- }
- static int pxp_buf_prepare(struct vb2_buffer *vb)
- {
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
- struct pxp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
- struct pxp_dev *dev = ctx->dev;
- struct pxp_q_data *q_data;
- dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type);
- q_data = get_q_data(ctx, vb->vb2_queue->type);
- if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) {
- if (vbuf->field == V4L2_FIELD_ANY)
- vbuf->field = V4L2_FIELD_NONE;
- if (vbuf->field != V4L2_FIELD_NONE) {
- dprintk(dev, "%s field isn't supported\n", __func__);
- return -EINVAL;
- }
- }
- if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
- dprintk(dev, "%s data will not fit into plane (%lu < %lu)\n",
- __func__, vb2_plane_size(vb, 0),
- (long)q_data->sizeimage);
- return -EINVAL;
- }
- vb2_set_plane_payload(vb, 0, q_data->sizeimage);
- return 0;
- }
- static void pxp_buf_queue(struct vb2_buffer *vb)
- {
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
- struct pxp_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
- v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
- }
- static int pxp_start_streaming(struct vb2_queue *q, unsigned int count)
- {
- struct pxp_ctx *ctx = vb2_get_drv_priv(q);
- struct pxp_q_data *q_data = get_q_data(ctx, q->type);
- q_data->sequence = 0;
- return 0;
- }
- static void pxp_stop_streaming(struct vb2_queue *q)
- {
- struct pxp_ctx *ctx = vb2_get_drv_priv(q);
- struct vb2_v4l2_buffer *vbuf;
- unsigned long flags;
- for (;;) {
- if (V4L2_TYPE_IS_OUTPUT(q->type))
- vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
- else
- vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
- if (vbuf == NULL)
- return;
- spin_lock_irqsave(&ctx->dev->irqlock, flags);
- v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
- spin_unlock_irqrestore(&ctx->dev->irqlock, flags);
- }
- }
- static const struct vb2_ops pxp_qops = {
- .queue_setup = pxp_queue_setup,
- .buf_prepare = pxp_buf_prepare,
- .buf_queue = pxp_buf_queue,
- .start_streaming = pxp_start_streaming,
- .stop_streaming = pxp_stop_streaming,
- .wait_prepare = vb2_ops_wait_prepare,
- .wait_finish = vb2_ops_wait_finish,
- };
- static int queue_init(void *priv, struct vb2_queue *src_vq,
- struct vb2_queue *dst_vq)
- {
- struct pxp_ctx *ctx = priv;
- int ret;
- src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
- src_vq->io_modes = VB2_MMAP | VB2_DMABUF;
- src_vq->drv_priv = ctx;
- src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
- src_vq->ops = &pxp_qops;
- src_vq->mem_ops = &vb2_dma_contig_memops;
- src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
- src_vq->lock = &ctx->dev->dev_mutex;
- src_vq->dev = ctx->dev->v4l2_dev.dev;
- ret = vb2_queue_init(src_vq);
- if (ret)
- return ret;
- dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- dst_vq->io_modes = VB2_MMAP | VB2_DMABUF;
- dst_vq->drv_priv = ctx;
- dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
- dst_vq->ops = &pxp_qops;
- dst_vq->mem_ops = &vb2_dma_contig_memops;
- dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
- dst_vq->lock = &ctx->dev->dev_mutex;
- dst_vq->dev = ctx->dev->v4l2_dev.dev;
- return vb2_queue_init(dst_vq);
- }
- /*
- * File operations
- */
- static int pxp_open(struct file *file)
- {
- struct pxp_dev *dev = video_drvdata(file);
- struct pxp_ctx *ctx = NULL;
- struct v4l2_ctrl_handler *hdl;
- int rc = 0;
- if (mutex_lock_interruptible(&dev->dev_mutex))
- return -ERESTARTSYS;
- ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
- if (!ctx) {
- rc = -ENOMEM;
- goto open_unlock;
- }
- v4l2_fh_init(&ctx->fh, video_devdata(file));
- file->private_data = &ctx->fh;
- ctx->dev = dev;
- hdl = &ctx->hdl;
- v4l2_ctrl_handler_init(hdl, 4);
- v4l2_ctrl_new_std(hdl, &pxp_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0);
- v4l2_ctrl_new_std(hdl, &pxp_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0);
- v4l2_ctrl_new_std(hdl, &pxp_ctrl_ops, V4L2_CID_ALPHA_COMPONENT,
- 0, 255, 1, 255);
- if (hdl->error) {
- rc = hdl->error;
- v4l2_ctrl_handler_free(hdl);
- kfree(ctx);
- goto open_unlock;
- }
- ctx->fh.ctrl_handler = hdl;
- v4l2_ctrl_handler_setup(hdl);
- ctx->q_data[V4L2_M2M_SRC].fmt = &formats[0];
- ctx->q_data[V4L2_M2M_SRC].width = 640;
- ctx->q_data[V4L2_M2M_SRC].height = 480;
- ctx->q_data[V4L2_M2M_SRC].bytesperline =
- pxp_bytesperline(&formats[0], 640);
- ctx->q_data[V4L2_M2M_SRC].sizeimage =
- pxp_sizeimage(&formats[0], 640, 480);
- ctx->q_data[V4L2_M2M_DST] = ctx->q_data[V4L2_M2M_SRC];
- ctx->colorspace = V4L2_COLORSPACE_REC709;
- ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
- if (IS_ERR(ctx->fh.m2m_ctx)) {
- rc = PTR_ERR(ctx->fh.m2m_ctx);
- v4l2_ctrl_handler_free(hdl);
- v4l2_fh_exit(&ctx->fh);
- kfree(ctx);
- goto open_unlock;
- }
- v4l2_fh_add(&ctx->fh);
- atomic_inc(&dev->num_inst);
- dprintk(dev, "Created instance: %p, m2m_ctx: %p\n",
- ctx, ctx->fh.m2m_ctx);
- open_unlock:
- mutex_unlock(&dev->dev_mutex);
- return rc;
- }
- static int pxp_release(struct file *file)
- {
- struct pxp_dev *dev = video_drvdata(file);
- struct pxp_ctx *ctx = file2ctx(file);
- dprintk(dev, "Releasing instance %p\n", ctx);
- v4l2_fh_del(&ctx->fh);
- v4l2_fh_exit(&ctx->fh);
- v4l2_ctrl_handler_free(&ctx->hdl);
- mutex_lock(&dev->dev_mutex);
- v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
- mutex_unlock(&dev->dev_mutex);
- kfree(ctx);
- atomic_dec(&dev->num_inst);
- return 0;
- }
- static const struct v4l2_file_operations pxp_fops = {
- .owner = THIS_MODULE,
- .open = pxp_open,
- .release = pxp_release,
- .poll = v4l2_m2m_fop_poll,
- .unlocked_ioctl = video_ioctl2,
- .mmap = v4l2_m2m_fop_mmap,
- };
- static const struct video_device pxp_videodev = {
- .name = MEM2MEM_NAME,
- .vfl_dir = VFL_DIR_M2M,
- .fops = &pxp_fops,
- .device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING,
- .ioctl_ops = &pxp_ioctl_ops,
- .minor = -1,
- .release = video_device_release_empty,
- };
- static const struct v4l2_m2m_ops m2m_ops = {
- .device_run = pxp_device_run,
- .job_ready = pxp_job_ready,
- .job_abort = pxp_job_abort,
- };
- static int pxp_soft_reset(struct pxp_dev *dev)
- {
- int ret;
- u32 val;
- writel(BM_PXP_CTRL_SFTRST, dev->mmio + HW_PXP_CTRL_CLR);
- writel(BM_PXP_CTRL_CLKGATE, dev->mmio + HW_PXP_CTRL_CLR);
- writel(BM_PXP_CTRL_SFTRST, dev->mmio + HW_PXP_CTRL_SET);
- ret = readl_poll_timeout(dev->mmio + HW_PXP_CTRL, val,
- val & BM_PXP_CTRL_CLKGATE, 0, 100);
- if (ret < 0)
- return ret;
- writel(BM_PXP_CTRL_SFTRST, dev->mmio + HW_PXP_CTRL_CLR);
- writel(BM_PXP_CTRL_CLKGATE, dev->mmio + HW_PXP_CTRL_CLR);
- return 0;
- }
- static int pxp_probe(struct platform_device *pdev)
- {
- struct pxp_dev *dev;
- struct resource *res;
- struct video_device *vfd;
- int irq;
- int ret;
- dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
- if (!dev)
- return -ENOMEM;
- dev->clk = devm_clk_get(&pdev->dev, "axi");
- if (IS_ERR(dev->clk)) {
- ret = PTR_ERR(dev->clk);
- dev_err(&pdev->dev, "Failed to get clk: %d\n", ret);
- return ret;
- }
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- dev->mmio = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(dev->mmio)) {
- ret = PTR_ERR(dev->mmio);
- dev_err(&pdev->dev, "Failed to map register space: %d\n", ret);
- return ret;
- }
- irq = platform_get_irq(pdev, 0);
- if (irq < 0)
- return irq;
- ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, pxp_irq_handler,
- IRQF_ONESHOT, dev_name(&pdev->dev), dev);
- if (ret < 0) {
- dev_err(&pdev->dev, "Failed to request irq: %d\n", ret);
- return ret;
- }
- ret = clk_prepare_enable(dev->clk);
- if (ret < 0)
- return ret;
- ret = pxp_soft_reset(dev);
- if (ret < 0) {
- dev_err(&pdev->dev, "PXP reset timeout: %d\n", ret);
- goto err_clk;
- }
- spin_lock_init(&dev->irqlock);
- ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
- if (ret)
- goto err_clk;
- atomic_set(&dev->num_inst, 0);
- mutex_init(&dev->dev_mutex);
- dev->vfd = pxp_videodev;
- vfd = &dev->vfd;
- vfd->lock = &dev->dev_mutex;
- vfd->v4l2_dev = &dev->v4l2_dev;
- video_set_drvdata(vfd, dev);
- snprintf(vfd->name, sizeof(vfd->name), "%s", pxp_videodev.name);
- v4l2_info(&dev->v4l2_dev,
- "Device registered as /dev/video%d\n", vfd->num);
- platform_set_drvdata(pdev, dev);
- dev->m2m_dev = v4l2_m2m_init(&m2m_ops);
- if (IS_ERR(dev->m2m_dev)) {
- v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
- ret = PTR_ERR(dev->m2m_dev);
- goto err_v4l2;
- }
- ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
- if (ret) {
- v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
- goto err_m2m;
- }
- return 0;
- err_m2m:
- v4l2_m2m_release(dev->m2m_dev);
- err_v4l2:
- v4l2_device_unregister(&dev->v4l2_dev);
- err_clk:
- clk_disable_unprepare(dev->clk);
- return ret;
- }
- static int pxp_remove(struct platform_device *pdev)
- {
- struct pxp_dev *dev = platform_get_drvdata(pdev);
- writel(BM_PXP_CTRL_CLKGATE, dev->mmio + HW_PXP_CTRL_SET);
- writel(BM_PXP_CTRL_SFTRST, dev->mmio + HW_PXP_CTRL_SET);
- clk_disable_unprepare(dev->clk);
- v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_NAME);
- video_unregister_device(&dev->vfd);
- v4l2_m2m_release(dev->m2m_dev);
- v4l2_device_unregister(&dev->v4l2_dev);
- return 0;
- }
- static const struct of_device_id pxp_dt_ids[] = {
- { .compatible = "fsl,imx6ull-pxp", .data = NULL },
- { },
- };
- MODULE_DEVICE_TABLE(of, pxp_dt_ids);
- static struct platform_driver pxp_driver = {
- .probe = pxp_probe,
- .remove = pxp_remove,
- .driver = {
- .name = MEM2MEM_NAME,
- .of_match_table = of_match_ptr(pxp_dt_ids),
- },
- };
- module_platform_driver(pxp_driver);
- MODULE_DESCRIPTION("i.MX PXP mem2mem scaler/CSC/rotator");
- MODULE_AUTHOR("Philipp Zabel <kernel@pengutronix.de>");
- MODULE_LICENSE("GPL");
|