+++ /dev/null
-/*
- * SoC-camera host driver for Renesas R-Car VIN unit
- *
- * Copyright (C) 2011-2013 Renesas Solutions Corp.
- * Copyright (C) 2013 Cogent Embedded, Inc., <source@cogentembedded.com>
- *
- * Based on V4L2 Driver for SuperH Mobile CEU interface "sh_mobile_ceu_camera.c"
- *
- * Copyright (C) 2008 Magnus Damm
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/slab.h>
-#include <linux/videodev2.h>
-
-#include <media/soc_camera.h>
-#include <media/drv-intf/soc_mediabus.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-dev.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-mediabus.h>
-#include <media/v4l2-of.h>
-#include <media/v4l2-subdev.h>
-#include <media/videobuf2-dma-contig.h>
-
-#include "soc_scale_crop.h"
-
-#define DRV_NAME "rcar_vin"
-
-/* Register offsets for R-Car VIN */
-#define VNMC_REG 0x00 /* Video n Main Control Register */
-#define VNMS_REG 0x04 /* Video n Module Status Register */
-#define VNFC_REG 0x08 /* Video n Frame Capture Register */
-#define VNSLPRC_REG 0x0C /* Video n Start Line Pre-Clip Register */
-#define VNELPRC_REG 0x10 /* Video n End Line Pre-Clip Register */
-#define VNSPPRC_REG 0x14 /* Video n Start Pixel Pre-Clip Register */
-#define VNEPPRC_REG 0x18 /* Video n End Pixel Pre-Clip Register */
-#define VNSLPOC_REG 0x1C /* Video n Start Line Post-Clip Register */
-#define VNELPOC_REG 0x20 /* Video n End Line Post-Clip Register */
-#define VNSPPOC_REG 0x24 /* Video n Start Pixel Post-Clip Register */
-#define VNEPPOC_REG 0x28 /* Video n End Pixel Post-Clip Register */
-#define VNIS_REG 0x2C /* Video n Image Stride Register */
-#define VNMB_REG(m) (0x30 + ((m) << 2)) /* Video n Memory Base m Register */
-#define VNIE_REG 0x40 /* Video n Interrupt Enable Register */
-#define VNINTS_REG 0x44 /* Video n Interrupt Status Register */
-#define VNSI_REG 0x48 /* Video n Scanline Interrupt Register */
-#define VNMTC_REG 0x4C /* Video n Memory Transfer Control Register */
-#define VNYS_REG 0x50 /* Video n Y Scale Register */
-#define VNXS_REG 0x54 /* Video n X Scale Register */
-#define VNDMR_REG 0x58 /* Video n Data Mode Register */
-#define VNDMR2_REG 0x5C /* Video n Data Mode Register 2 */
-#define VNUVAOF_REG 0x60 /* Video n UV Address Offset Register */
-#define VNC1A_REG 0x80 /* Video n Coefficient Set C1A Register */
-#define VNC1B_REG 0x84 /* Video n Coefficient Set C1B Register */
-#define VNC1C_REG 0x88 /* Video n Coefficient Set C1C Register */
-#define VNC2A_REG 0x90 /* Video n Coefficient Set C2A Register */
-#define VNC2B_REG 0x94 /* Video n Coefficient Set C2B Register */
-#define VNC2C_REG 0x98 /* Video n Coefficient Set C2C Register */
-#define VNC3A_REG 0xA0 /* Video n Coefficient Set C3A Register */
-#define VNC3B_REG 0xA4 /* Video n Coefficient Set C3B Register */
-#define VNC3C_REG 0xA8 /* Video n Coefficient Set C3C Register */
-#define VNC4A_REG 0xB0 /* Video n Coefficient Set C4A Register */
-#define VNC4B_REG 0xB4 /* Video n Coefficient Set C4B Register */
-#define VNC4C_REG 0xB8 /* Video n Coefficient Set C4C Register */
-#define VNC5A_REG 0xC0 /* Video n Coefficient Set C5A Register */
-#define VNC5B_REG 0xC4 /* Video n Coefficient Set C5B Register */
-#define VNC5C_REG 0xC8 /* Video n Coefficient Set C5C Register */
-#define VNC6A_REG 0xD0 /* Video n Coefficient Set C6A Register */
-#define VNC6B_REG 0xD4 /* Video n Coefficient Set C6B Register */
-#define VNC6C_REG 0xD8 /* Video n Coefficient Set C6C Register */
-#define VNC7A_REG 0xE0 /* Video n Coefficient Set C7A Register */
-#define VNC7B_REG 0xE4 /* Video n Coefficient Set C7B Register */
-#define VNC7C_REG 0xE8 /* Video n Coefficient Set C7C Register */
-#define VNC8A_REG 0xF0 /* Video n Coefficient Set C8A Register */
-#define VNC8B_REG 0xF4 /* Video n Coefficient Set C8B Register */
-#define VNC8C_REG 0xF8 /* Video n Coefficient Set C8C Register */
-
-/* Register bit fields for R-Car VIN */
-/* Video n Main Control Register bits */
-#define VNMC_FOC (1 << 21)
-#define VNMC_YCAL (1 << 19)
-#define VNMC_INF_YUV8_BT656 (0 << 16)
-#define VNMC_INF_YUV8_BT601 (1 << 16)
-#define VNMC_INF_YUV10_BT656 (2 << 16)
-#define VNMC_INF_YUV10_BT601 (3 << 16)
-#define VNMC_INF_YUV16 (5 << 16)
-#define VNMC_INF_RGB888 (6 << 16)
-#define VNMC_VUP (1 << 10)
-#define VNMC_IM_ODD (0 << 3)
-#define VNMC_IM_ODD_EVEN (1 << 3)
-#define VNMC_IM_EVEN (2 << 3)
-#define VNMC_IM_FULL (3 << 3)
-#define VNMC_BPS (1 << 1)
-#define VNMC_ME (1 << 0)
-
-/* Video n Module Status Register bits */
-#define VNMS_FBS_MASK (3 << 3)
-#define VNMS_FBS_SHIFT 3
-#define VNMS_AV (1 << 1)
-#define VNMS_CA (1 << 0)
-
-/* Video n Frame Capture Register bits */
-#define VNFC_C_FRAME (1 << 1)
-#define VNFC_S_FRAME (1 << 0)
-
-/* Video n Interrupt Enable Register bits */
-#define VNIE_FIE (1 << 4)
-#define VNIE_EFE (1 << 1)
-
-/* Video n Data Mode Register bits */
-#define VNDMR_EXRGB (1 << 8)
-#define VNDMR_BPSM (1 << 4)
-#define VNDMR_DTMD_YCSEP (1 << 1)
-#define VNDMR_DTMD_ARGB (1 << 0)
-
-/* Video n Data Mode Register 2 bits */
-#define VNDMR2_VPS (1 << 30)
-#define VNDMR2_HPS (1 << 29)
-#define VNDMR2_FTEV (1 << 17)
-#define VNDMR2_VLV(n) ((n & 0xf) << 12)
-
-#define VIN_MAX_WIDTH 2048
-#define VIN_MAX_HEIGHT 2048
-
-#define TIMEOUT_MS 100
-
-#define RCAR_VIN_HSYNC_ACTIVE_LOW (1 << 0)
-#define RCAR_VIN_VSYNC_ACTIVE_LOW (1 << 1)
-#define RCAR_VIN_BT601 (1 << 2)
-#define RCAR_VIN_BT656 (1 << 3)
-
-enum chip_id {
- RCAR_GEN3,
- RCAR_GEN2,
- RCAR_H1,
- RCAR_M1,
- RCAR_E1,
-};
-
-struct vin_coeff {
- unsigned short xs_value;
- u32 coeff_set[24];
-};
-
-static const struct vin_coeff vin_coeff_set[] = {
- { 0x0000, {
- 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000 },
- },
- { 0x1000, {
- 0x000fa400, 0x000fa400, 0x09625902,
- 0x000003f8, 0x00000403, 0x3de0d9f0,
- 0x001fffed, 0x00000804, 0x3cc1f9c3,
- 0x001003de, 0x00000c01, 0x3cb34d7f,
- 0x002003d2, 0x00000c00, 0x3d24a92d,
- 0x00200bca, 0x00000bff, 0x3df600d2,
- 0x002013cc, 0x000007ff, 0x3ed70c7e,
- 0x00100fde, 0x00000000, 0x3f87c036 },
- },
- { 0x1200, {
- 0x002ffff1, 0x002ffff1, 0x02a0a9c8,
- 0x002003e7, 0x001ffffa, 0x000185bc,
- 0x002007dc, 0x000003ff, 0x3e52859c,
- 0x00200bd4, 0x00000002, 0x3d53996b,
- 0x00100fd0, 0x00000403, 0x3d04ad2d,
- 0x00000bd5, 0x00000403, 0x3d35ace7,
- 0x3ff003e4, 0x00000801, 0x3dc674a1,
- 0x3fffe800, 0x00000800, 0x3e76f461 },
- },
- { 0x1400, {
- 0x00100be3, 0x00100be3, 0x04d1359a,
- 0x00000fdb, 0x002003ed, 0x0211fd93,
- 0x00000fd6, 0x002003f4, 0x0002d97b,
- 0x000007d6, 0x002ffffb, 0x3e93b956,
- 0x3ff003da, 0x001003ff, 0x3db49926,
- 0x3fffefe9, 0x00100001, 0x3d655cee,
- 0x3fffd400, 0x00000003, 0x3d65f4b6,
- 0x000fb421, 0x00000402, 0x3dc6547e },
- },
- { 0x1600, {
- 0x00000bdd, 0x00000bdd, 0x06519578,
- 0x3ff007da, 0x00000be3, 0x03c24973,
- 0x3ff003d9, 0x00000be9, 0x01b30d5f,
- 0x3ffff7df, 0x001003f1, 0x0003c542,
- 0x000fdfec, 0x001003f7, 0x3ec4711d,
- 0x000fc400, 0x002ffffd, 0x3df504f1,
- 0x001fa81a, 0x002ffc00, 0x3d957cc2,
- 0x002f8c3c, 0x00100000, 0x3db5c891 },
- },
- { 0x1800, {
- 0x3ff003dc, 0x3ff003dc, 0x0791e558,
- 0x000ff7dd, 0x3ff007de, 0x05328554,
- 0x000fe7e3, 0x3ff00be2, 0x03232546,
- 0x000fd7ee, 0x000007e9, 0x0143bd30,
- 0x001fb800, 0x000007ee, 0x00044511,
- 0x002fa015, 0x000007f4, 0x3ef4bcee,
- 0x002f8832, 0x001003f9, 0x3e4514c7,
- 0x001f7853, 0x001003fd, 0x3de54c9f },
- },
- { 0x1a00, {
- 0x000fefe0, 0x000fefe0, 0x08721d3c,
- 0x001fdbe7, 0x000ffbde, 0x0652a139,
- 0x001fcbf0, 0x000003df, 0x0463292e,
- 0x002fb3ff, 0x3ff007e3, 0x0293a91d,
- 0x002f9c12, 0x3ff00be7, 0x01241905,
- 0x001f8c29, 0x000007ed, 0x3fe470eb,
- 0x000f7c46, 0x000007f2, 0x3f04b8ca,
- 0x3fef7865, 0x000007f6, 0x3e74e4a8 },
- },
- { 0x1c00, {
- 0x001fd3e9, 0x001fd3e9, 0x08f23d26,
- 0x002fbff3, 0x001fe3e4, 0x0712ad23,
- 0x002fa800, 0x000ff3e0, 0x05631d1b,
- 0x001f9810, 0x000ffbe1, 0x03b3890d,
- 0x000f8c23, 0x000003e3, 0x0233e8fa,
- 0x3fef843b, 0x000003e7, 0x00f430e4,
- 0x3fbf8456, 0x3ff00bea, 0x00046cc8,
- 0x3f8f8c72, 0x3ff00bef, 0x3f3490ac },
- },
- { 0x1e00, {
- 0x001fbbf4, 0x001fbbf4, 0x09425112,
- 0x001fa800, 0x002fc7ed, 0x0792b110,
- 0x000f980e, 0x001fdbe6, 0x0613110a,
- 0x3fff8c20, 0x001fe7e3, 0x04a368fd,
- 0x3fcf8c33, 0x000ff7e2, 0x0343b8ed,
- 0x3f9f8c4a, 0x000fffe3, 0x0203f8da,
- 0x3f5f9c61, 0x000003e6, 0x00e428c5,
- 0x3f1fb07b, 0x000003eb, 0x3fe440af },
- },
- { 0x2000, {
- 0x000fa400, 0x000fa400, 0x09625902,
- 0x3fff980c, 0x001fb7f5, 0x0812b0ff,
- 0x3fdf901c, 0x001fc7ed, 0x06b2fcfa,
- 0x3faf902d, 0x001fd3e8, 0x055348f1,
- 0x3f7f983f, 0x001fe3e5, 0x04038ce3,
- 0x3f3fa454, 0x001fefe3, 0x02e3c8d1,
- 0x3f0fb86a, 0x001ff7e4, 0x01c3e8c0,
- 0x3ecfd880, 0x000fffe6, 0x00c404ac },
- },
- { 0x2200, {
- 0x3fdf9c0b, 0x3fdf9c0b, 0x09725cf4,
- 0x3fbf9818, 0x3fffa400, 0x0842a8f1,
- 0x3f8f9827, 0x000fb3f7, 0x0702f0ec,
- 0x3f5fa037, 0x000fc3ef, 0x05d330e4,
- 0x3f2fac49, 0x001fcfea, 0x04a364d9,
- 0x3effc05c, 0x001fdbe7, 0x038394ca,
- 0x3ecfdc6f, 0x001fe7e6, 0x0273b0bb,
- 0x3ea00083, 0x001fefe6, 0x0183c0a9 },
- },
- { 0x2400, {
- 0x3f9fa014, 0x3f9fa014, 0x098260e6,
- 0x3f7f9c23, 0x3fcf9c0a, 0x08629ce5,
- 0x3f4fa431, 0x3fefa400, 0x0742d8e1,
- 0x3f1fb440, 0x3fffb3f8, 0x062310d9,
- 0x3eefc850, 0x000fbbf2, 0x050340d0,
- 0x3ecfe062, 0x000fcbec, 0x041364c2,
- 0x3ea00073, 0x001fd3ea, 0x03037cb5,
- 0x3e902086, 0x001fdfe8, 0x022388a5 },
- },
- { 0x2600, {
- 0x3f5fa81e, 0x3f5fa81e, 0x096258da,
- 0x3f3fac2b, 0x3f8fa412, 0x088290d8,
- 0x3f0fbc38, 0x3fafa408, 0x0772c8d5,
- 0x3eefcc47, 0x3fcfa800, 0x0672f4ce,
- 0x3ecfe456, 0x3fefaffa, 0x05531cc6,
- 0x3eb00066, 0x3fffbbf3, 0x047334bb,
- 0x3ea01c77, 0x000fc7ee, 0x039348ae,
- 0x3ea04486, 0x000fd3eb, 0x02b350a1 },
- },
- { 0x2800, {
- 0x3f2fb426, 0x3f2fb426, 0x094250ce,
- 0x3f0fc032, 0x3f4fac1b, 0x086284cd,
- 0x3eefd040, 0x3f7fa811, 0x0782acc9,
- 0x3ecfe84c, 0x3f9fa807, 0x06a2d8c4,
- 0x3eb0005b, 0x3fbfac00, 0x05b2f4bc,
- 0x3eb0186a, 0x3fdfb3fa, 0x04c308b4,
- 0x3eb04077, 0x3fefbbf4, 0x03f31ca8,
- 0x3ec06884, 0x000fbff2, 0x03031c9e },
- },
- { 0x2a00, {
- 0x3f0fc42d, 0x3f0fc42d, 0x090240c4,
- 0x3eefd439, 0x3f2fb822, 0x08526cc2,
- 0x3edfe845, 0x3f4fb018, 0x078294bf,
- 0x3ec00051, 0x3f6fac0f, 0x06b2b4bb,
- 0x3ec0185f, 0x3f8fac07, 0x05e2ccb4,
- 0x3ec0386b, 0x3fafac00, 0x0502e8ac,
- 0x3ed05c77, 0x3fcfb3fb, 0x0432f0a3,
- 0x3ef08482, 0x3fdfbbf6, 0x0372f898 },
- },
- { 0x2c00, {
- 0x3eefdc31, 0x3eefdc31, 0x08e238b8,
- 0x3edfec3d, 0x3f0fc828, 0x082258b9,
- 0x3ed00049, 0x3f1fc01e, 0x077278b6,
- 0x3ed01455, 0x3f3fb815, 0x06c294b2,
- 0x3ed03460, 0x3f5fb40d, 0x0602acac,
- 0x3ef0506c, 0x3f7fb006, 0x0542c0a4,
- 0x3f107476, 0x3f9fb400, 0x0472c89d,
- 0x3f309c80, 0x3fbfb7fc, 0x03b2cc94 },
- },
- { 0x2e00, {
- 0x3eefec37, 0x3eefec37, 0x088220b0,
- 0x3ee00041, 0x3effdc2d, 0x07f244ae,
- 0x3ee0144c, 0x3f0fd023, 0x07625cad,
- 0x3ef02c57, 0x3f1fc81a, 0x06c274a9,
- 0x3f004861, 0x3f3fbc13, 0x060288a6,
- 0x3f20686b, 0x3f5fb80c, 0x05529c9e,
- 0x3f408c74, 0x3f6fb805, 0x04b2ac96,
- 0x3f80ac7e, 0x3f8fb800, 0x0402ac8e },
- },
- { 0x3000, {
- 0x3ef0003a, 0x3ef0003a, 0x084210a6,
- 0x3ef01045, 0x3effec32, 0x07b228a7,
- 0x3f00284e, 0x3f0fdc29, 0x073244a4,
- 0x3f104058, 0x3f0fd420, 0x06a258a2,
- 0x3f305c62, 0x3f2fc818, 0x0612689d,
- 0x3f508069, 0x3f3fc011, 0x05728496,
- 0x3f80a072, 0x3f4fc00a, 0x04d28c90,
- 0x3fc0c07b, 0x3f6fbc04, 0x04429088 },
- },
- { 0x3200, {
- 0x3f00103e, 0x3f00103e, 0x07f1fc9e,
- 0x3f102447, 0x3f000035, 0x0782149d,
- 0x3f203c4f, 0x3f0ff02c, 0x07122c9c,
- 0x3f405458, 0x3f0fe424, 0x06924099,
- 0x3f607061, 0x3f1fd41d, 0x06024c97,
- 0x3f909068, 0x3f2fcc16, 0x05726490,
- 0x3fc0b070, 0x3f3fc80f, 0x04f26c8a,
- 0x0000d077, 0x3f4fc409, 0x04627484 },
- },
- { 0x3400, {
- 0x3f202040, 0x3f202040, 0x07a1e898,
- 0x3f303449, 0x3f100c38, 0x0741fc98,
- 0x3f504c50, 0x3f10002f, 0x06e21495,
- 0x3f706459, 0x3f1ff028, 0x06722492,
- 0x3fa08060, 0x3f1fe421, 0x05f2348f,
- 0x3fd09c67, 0x3f1fdc19, 0x05824c89,
- 0x0000bc6e, 0x3f2fd014, 0x04f25086,
- 0x0040dc74, 0x3f3fcc0d, 0x04825c7f },
- },
- { 0x3600, {
- 0x3f403042, 0x3f403042, 0x0761d890,
- 0x3f504848, 0x3f301c3b, 0x0701f090,
- 0x3f805c50, 0x3f200c33, 0x06a2008f,
- 0x3fa07458, 0x3f10002b, 0x06520c8d,
- 0x3fd0905e, 0x3f1ff424, 0x05e22089,
- 0x0000ac65, 0x3f1fe81d, 0x05823483,
- 0x0030cc6a, 0x3f2fdc18, 0x04f23c81,
- 0x0080e871, 0x3f2fd412, 0x0482407c },
- },
- { 0x3800, {
- 0x3f604043, 0x3f604043, 0x0721c88a,
- 0x3f80544a, 0x3f502c3c, 0x06d1d88a,
- 0x3fb06851, 0x3f301c35, 0x0681e889,
- 0x3fd08456, 0x3f30082f, 0x0611fc88,
- 0x00009c5d, 0x3f200027, 0x05d20884,
- 0x0030b863, 0x3f2ff421, 0x05621880,
- 0x0070d468, 0x3f2fe81b, 0x0502247c,
- 0x00c0ec6f, 0x3f2fe015, 0x04a22877 },
- },
- { 0x3a00, {
- 0x3f904c44, 0x3f904c44, 0x06e1b884,
- 0x3fb0604a, 0x3f70383e, 0x0691c885,
- 0x3fe07451, 0x3f502c36, 0x0661d483,
- 0x00009055, 0x3f401831, 0x0601ec81,
- 0x0030a85b, 0x3f300c2a, 0x05b1f480,
- 0x0070c061, 0x3f300024, 0x0562047a,
- 0x00b0d867, 0x3f3ff41e, 0x05020c77,
- 0x00f0f46b, 0x3f2fec19, 0x04a21474 },
- },
- { 0x3c00, {
- 0x3fb05c43, 0x3fb05c43, 0x06c1b07e,
- 0x3fe06c4b, 0x3f902c3f, 0x0681c081,
- 0x0000844f, 0x3f703838, 0x0631cc7d,
- 0x00309855, 0x3f602433, 0x05d1d47e,
- 0x0060b459, 0x3f50142e, 0x0581e47b,
- 0x00a0c85f, 0x3f400828, 0x0531f078,
- 0x00e0e064, 0x3f300021, 0x0501fc73,
- 0x00b0fc6a, 0x3f3ff41d, 0x04a20873 },
- },
- { 0x3e00, {
- 0x3fe06444, 0x3fe06444, 0x0681a07a,
- 0x00007849, 0x3fc0503f, 0x0641b07a,
- 0x0020904d, 0x3fa0403a, 0x05f1c07a,
- 0x0060a453, 0x3f803034, 0x05c1c878,
- 0x0090b858, 0x3f70202f, 0x0571d477,
- 0x00d0d05d, 0x3f501829, 0x0531e073,
- 0x0110e462, 0x3f500825, 0x04e1e471,
- 0x01510065, 0x3f40001f, 0x04a1f06d },
- },
- { 0x4000, {
- 0x00007044, 0x00007044, 0x06519476,
- 0x00208448, 0x3fe05c3f, 0x0621a476,
- 0x0050984d, 0x3fc04c3a, 0x05e1b075,
- 0x0080ac52, 0x3fa03c35, 0x05a1b875,
- 0x00c0c056, 0x3f803030, 0x0561c473,
- 0x0100d45b, 0x3f70202b, 0x0521d46f,
- 0x0140e860, 0x3f601427, 0x04d1d46e,
- 0x01810064, 0x3f500822, 0x0491dc6b },
- },
- { 0x5000, {
- 0x0110a442, 0x0110a442, 0x0551545e,
- 0x0140b045, 0x00e0983f, 0x0531585f,
- 0x0160c047, 0x00c08c3c, 0x0511645e,
- 0x0190cc4a, 0x00908039, 0x04f1685f,
- 0x01c0dc4c, 0x00707436, 0x04d1705e,
- 0x0200e850, 0x00506833, 0x04b1785b,
- 0x0230f453, 0x00305c30, 0x0491805a,
- 0x02710056, 0x0010542d, 0x04718059 },
- },
- { 0x6000, {
- 0x01c0bc40, 0x01c0bc40, 0x04c13052,
- 0x01e0c841, 0x01a0b43d, 0x04c13851,
- 0x0210cc44, 0x0180a83c, 0x04a13453,
- 0x0230d845, 0x0160a03a, 0x04913c52,
- 0x0260e047, 0x01409838, 0x04714052,
- 0x0280ec49, 0x01208c37, 0x04514c50,
- 0x02b0f44b, 0x01008435, 0x04414c50,
- 0x02d1004c, 0x00e07c33, 0x0431544f },
- },
- { 0x7000, {
- 0x0230c83e, 0x0230c83e, 0x04711c4c,
- 0x0250d03f, 0x0210c43c, 0x0471204b,
- 0x0270d840, 0x0200b83c, 0x0451244b,
- 0x0290dc42, 0x01e0b43a, 0x0441244c,
- 0x02b0e443, 0x01c0b038, 0x0441284b,
- 0x02d0ec44, 0x01b0a438, 0x0421304a,
- 0x02f0f445, 0x0190a036, 0x04213449,
- 0x0310f847, 0x01709c34, 0x04213848 },
- },
- { 0x8000, {
- 0x0280d03d, 0x0280d03d, 0x04310c48,
- 0x02a0d43e, 0x0270c83c, 0x04311047,
- 0x02b0dc3e, 0x0250c83a, 0x04311447,
- 0x02d0e040, 0x0240c03a, 0x04211446,
- 0x02e0e840, 0x0220bc39, 0x04111847,
- 0x0300e842, 0x0210b438, 0x04012445,
- 0x0310f043, 0x0200b037, 0x04012045,
- 0x0330f444, 0x01e0ac36, 0x03f12445 },
- },
- { 0xefff, {
- 0x0340dc3a, 0x0340dc3a, 0x03b0ec40,
- 0x0340e03a, 0x0330e039, 0x03c0f03e,
- 0x0350e03b, 0x0330dc39, 0x03c0ec3e,
- 0x0350e43a, 0x0320dc38, 0x03c0f43e,
- 0x0360e43b, 0x0320d839, 0x03b0f03e,
- 0x0360e83b, 0x0310d838, 0x03c0fc3b,
- 0x0370e83b, 0x0310d439, 0x03a0f83d,
- 0x0370e83c, 0x0300d438, 0x03b0fc3c },
- }
-};
-
-enum rcar_vin_state {
- STOPPED = 0,
- RUNNING,
- STOPPING,
-};
-
-struct rcar_vin_priv {
- void __iomem *base;
- spinlock_t lock;
- int sequence;
- /* State of the VIN module in capturing mode */
- enum rcar_vin_state state;
- struct soc_camera_host ici;
- struct list_head capture;
-#define MAX_BUFFER_NUM 3
- struct vb2_v4l2_buffer *queue_buf[MAX_BUFFER_NUM];
- enum v4l2_field field;
- unsigned int pdata_flags;
- unsigned int vb_count;
- unsigned int nr_hw_slots;
- bool request_to_stop;
- struct completion capture_stop;
- enum chip_id chip;
-};
-
-#define is_continuous_transfer(priv) (priv->vb_count > MAX_BUFFER_NUM)
-
-struct rcar_vin_buffer {
- struct vb2_v4l2_buffer vb;
- struct list_head list;
-};
-
-#define to_buf_list(vb2_buffer) (&container_of(vb2_buffer, \
- struct rcar_vin_buffer, \
- vb)->list)
-
-struct rcar_vin_cam {
- /* VIN offsets within the camera output, before the VIN scaler */
- unsigned int vin_left;
- unsigned int vin_top;
- /* Client output, as seen by the VIN */
- unsigned int width;
- unsigned int height;
- /* User window from S_FMT */
- unsigned int out_width;
- unsigned int out_height;
- /*
- * User window from S_SELECTION / G_SELECTION, produced by client cropping and
- * scaling, VIN scaling and VIN cropping, mapped back onto the client
- * input window
- */
- struct v4l2_rect subrect;
- /* Camera cropping rectangle */
- struct v4l2_rect rect;
- const struct soc_mbus_pixelfmt *extra_fmt;
-};
-
-/*
- * .queue_setup() is called to check whether the driver can accept the requested
- * number of buffers and to fill in plane sizes for the current frame format if
- * required
- */
-static int rcar_vin_videobuf_setup(struct vb2_queue *vq,
- unsigned int *count,
- unsigned int *num_planes,
- unsigned int sizes[], struct device *alloc_devs[])
-{
- struct soc_camera_device *icd = soc_camera_from_vb2q(vq);
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
- struct rcar_vin_priv *priv = ici->priv;
-
- if (!vq->num_buffers)
- priv->sequence = 0;
-
- if (!*count)
- *count = 2;
- priv->vb_count = *count;
-
- /* Number of hardware slots */
- if (is_continuous_transfer(priv))
- priv->nr_hw_slots = MAX_BUFFER_NUM;
- else
- priv->nr_hw_slots = 1;
-
- if (*num_planes)
- return sizes[0] < icd->sizeimage ? -EINVAL : 0;
-
- sizes[0] = icd->sizeimage;
- *num_planes = 1;
-
- dev_dbg(icd->parent, "count=%d, size=%u\n", *count, sizes[0]);
-
- return 0;
-}
-
-static int rcar_vin_setup(struct rcar_vin_priv *priv)
-{
- struct soc_camera_device *icd = priv->ici.icd;
- struct rcar_vin_cam *cam = icd->host_priv;
- u32 vnmc, dmr, interrupts;
- bool progressive = false, output_is_yuv = false, input_is_yuv = false;
-
- switch (priv->field) {
- case V4L2_FIELD_TOP:
- vnmc = VNMC_IM_ODD;
- break;
- case V4L2_FIELD_BOTTOM:
- vnmc = VNMC_IM_EVEN;
- break;
- case V4L2_FIELD_INTERLACED:
- case V4L2_FIELD_INTERLACED_TB:
- vnmc = VNMC_IM_FULL;
- break;
- case V4L2_FIELD_INTERLACED_BT:
- vnmc = VNMC_IM_FULL | VNMC_FOC;
- break;
- case V4L2_FIELD_NONE:
- if (is_continuous_transfer(priv)) {
- vnmc = VNMC_IM_ODD_EVEN;
- progressive = true;
- } else {
- vnmc = VNMC_IM_ODD;
- }
- break;
- default:
- vnmc = VNMC_IM_ODD;
- break;
- }
-
- /* input interface */
- switch (icd->current_fmt->code) {
- case MEDIA_BUS_FMT_YUYV8_1X16:
- /* BT.601/BT.1358 16bit YCbCr422 */
- vnmc |= VNMC_INF_YUV16;
- input_is_yuv = true;
- break;
- case MEDIA_BUS_FMT_YUYV8_2X8:
- /* BT.656 8bit YCbCr422 or BT.601 8bit YCbCr422 */
- vnmc |= priv->pdata_flags & RCAR_VIN_BT656 ?
- VNMC_INF_YUV8_BT656 : VNMC_INF_YUV8_BT601;
- input_is_yuv = true;
- break;
- case MEDIA_BUS_FMT_RGB888_1X24:
- vnmc |= VNMC_INF_RGB888;
- break;
- case MEDIA_BUS_FMT_YUYV10_2X10:
- /* BT.656 10bit YCbCr422 or BT.601 10bit YCbCr422 */
- vnmc |= priv->pdata_flags & RCAR_VIN_BT656 ?
- VNMC_INF_YUV10_BT656 : VNMC_INF_YUV10_BT601;
- input_is_yuv = true;
- break;
- default:
- break;
- }
-
- /* output format */
- switch (icd->current_fmt->host_fmt->fourcc) {
- case V4L2_PIX_FMT_NV16:
- iowrite32(ALIGN(cam->width * cam->height, 0x80),
- priv->base + VNUVAOF_REG);
- dmr = VNDMR_DTMD_YCSEP;
- output_is_yuv = true;
- break;
- case V4L2_PIX_FMT_YUYV:
- dmr = VNDMR_BPSM;
- output_is_yuv = true;
- break;
- case V4L2_PIX_FMT_UYVY:
- dmr = 0;
- output_is_yuv = true;
- break;
- case V4L2_PIX_FMT_RGB555X:
- dmr = VNDMR_DTMD_ARGB;
- break;
- case V4L2_PIX_FMT_RGB565:
- dmr = 0;
- break;
- case V4L2_PIX_FMT_RGB32:
- if (priv->chip != RCAR_GEN2 && priv->chip != RCAR_H1 &&
- priv->chip != RCAR_E1)
- goto e_format;
-
- dmr = VNDMR_EXRGB;
- break;
- case V4L2_PIX_FMT_ARGB32:
- if (priv->chip != RCAR_GEN3)
- goto e_format;
-
- dmr = VNDMR_EXRGB | VNDMR_DTMD_ARGB;
- break;
- default:
- goto e_format;
- }
-
- /* Always update on field change */
- vnmc |= VNMC_VUP;
-
- /* If input and output use the same colorspace, use bypass mode */
- if (input_is_yuv == output_is_yuv)
- vnmc |= VNMC_BPS;
-
- /* progressive or interlaced mode */
- interrupts = progressive ? VNIE_FIE : VNIE_EFE;
-
- /* ack interrupts */
- iowrite32(interrupts, priv->base + VNINTS_REG);
- /* enable interrupts */
- iowrite32(interrupts, priv->base + VNIE_REG);
- /* start capturing */
- iowrite32(dmr, priv->base + VNDMR_REG);
- iowrite32(vnmc | VNMC_ME, priv->base + VNMC_REG);
-
- return 0;
-
-e_format:
- dev_warn(icd->parent, "Invalid fourcc format (0x%x)\n",
- icd->current_fmt->host_fmt->fourcc);
- return -EINVAL;
-}
-
-static void rcar_vin_capture(struct rcar_vin_priv *priv)
-{
- if (is_continuous_transfer(priv))
- /* Continuous Frame Capture Mode */
- iowrite32(VNFC_C_FRAME, priv->base + VNFC_REG);
- else
- /* Single Frame Capture Mode */
- iowrite32(VNFC_S_FRAME, priv->base + VNFC_REG);
-}
-
-static void rcar_vin_request_capture_stop(struct rcar_vin_priv *priv)
-{
- priv->state = STOPPING;
-
- /* set continuous & single transfer off */
- iowrite32(0, priv->base + VNFC_REG);
- /* disable capture (release DMA buffer), reset */
- iowrite32(ioread32(priv->base + VNMC_REG) & ~VNMC_ME,
- priv->base + VNMC_REG);
-
- /* update the status if stopped already */
- if (!(ioread32(priv->base + VNMS_REG) & VNMS_CA))
- priv->state = STOPPED;
-}
-
-static int rcar_vin_get_free_hw_slot(struct rcar_vin_priv *priv)
-{
- int slot;
-
- for (slot = 0; slot < priv->nr_hw_slots; slot++)
- if (priv->queue_buf[slot] == NULL)
- return slot;
-
- return -1;
-}
-
-static int rcar_vin_hw_ready(struct rcar_vin_priv *priv)
-{
- /* Ensure all HW slots are filled */
- return rcar_vin_get_free_hw_slot(priv) < 0 ? 1 : 0;
-}
-
-/* Moves a buffer from the queue to the HW slots */
-static int rcar_vin_fill_hw_slot(struct rcar_vin_priv *priv)
-{
- struct vb2_v4l2_buffer *vbuf;
- dma_addr_t phys_addr_top;
- int slot;
-
- if (list_empty(&priv->capture))
- return 0;
-
- /* Find a free HW slot */
- slot = rcar_vin_get_free_hw_slot(priv);
- if (slot < 0)
- return 0;
-
- vbuf = &list_entry(priv->capture.next,
- struct rcar_vin_buffer, list)->vb;
- list_del_init(to_buf_list(vbuf));
- priv->queue_buf[slot] = vbuf;
- phys_addr_top = vb2_dma_contig_plane_dma_addr(&vbuf->vb2_buf, 0);
- iowrite32(phys_addr_top, priv->base + VNMB_REG(slot));
-
- return 1;
-}
-
-static void rcar_vin_videobuf_queue(struct vb2_buffer *vb)
-{
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
- struct soc_camera_device *icd = soc_camera_from_vb2q(vb->vb2_queue);
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
- struct rcar_vin_priv *priv = ici->priv;
- unsigned long size;
-
- size = icd->sizeimage;
-
- if (vb2_plane_size(vb, 0) < size) {
- dev_err(icd->parent, "Buffer #%d too small (%lu < %lu)\n",
- vb->index, vb2_plane_size(vb, 0), size);
- goto error;
- }
-
- vb2_set_plane_payload(vb, 0, size);
-
- dev_dbg(icd->parent, "%s (vb=0x%p) 0x%p %lu\n", __func__,
- vb, vb2_plane_vaddr(vb, 0), vb2_get_plane_payload(vb, 0));
-
- spin_lock_irq(&priv->lock);
-
- list_add_tail(to_buf_list(vbuf), &priv->capture);
- rcar_vin_fill_hw_slot(priv);
-
- /* If we weren't running, and have enough buffers, start capturing! */
- if (priv->state != RUNNING && rcar_vin_hw_ready(priv)) {
- if (rcar_vin_setup(priv)) {
- /* Submit error */
- list_del_init(to_buf_list(vbuf));
- spin_unlock_irq(&priv->lock);
- goto error;
- }
- priv->request_to_stop = false;
- init_completion(&priv->capture_stop);
- priv->state = RUNNING;
- rcar_vin_capture(priv);
- }
-
- spin_unlock_irq(&priv->lock);
-
- return;
-
-error:
- vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
-}
-
-/*
- * Wait for capture to stop and all in-flight buffers to be finished with by
- * the video hardware. This must be called under &priv->lock
- *
- */
-static void rcar_vin_wait_stop_streaming(struct rcar_vin_priv *priv)
-{
- while (priv->state != STOPPED) {
- /* issue stop if running */
- if (priv->state == RUNNING)
- rcar_vin_request_capture_stop(priv);
-
- /* wait until capturing has been stopped */
- if (priv->state == STOPPING) {
- priv->request_to_stop = true;
- spin_unlock_irq(&priv->lock);
- if (!wait_for_completion_timeout(
- &priv->capture_stop,
- msecs_to_jiffies(TIMEOUT_MS)))
- priv->state = STOPPED;
- spin_lock_irq(&priv->lock);
- }
- }
-}
-
-static void rcar_vin_stop_streaming(struct vb2_queue *vq)
-{
- struct soc_camera_device *icd = soc_camera_from_vb2q(vq);
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
- struct rcar_vin_priv *priv = ici->priv;
- struct list_head *buf_head, *tmp;
- int i;
-
- spin_lock_irq(&priv->lock);
- rcar_vin_wait_stop_streaming(priv);
-
- for (i = 0; i < MAX_BUFFER_NUM; i++) {
- if (priv->queue_buf[i]) {
- vb2_buffer_done(&priv->queue_buf[i]->vb2_buf,
- VB2_BUF_STATE_ERROR);
- priv->queue_buf[i] = NULL;
- }
- }
-
- list_for_each_safe(buf_head, tmp, &priv->capture) {
- vb2_buffer_done(&list_entry(buf_head,
- struct rcar_vin_buffer, list)->vb.vb2_buf,
- VB2_BUF_STATE_ERROR);
- list_del_init(buf_head);
- }
- spin_unlock_irq(&priv->lock);
-}
-
-static struct vb2_ops rcar_vin_vb2_ops = {
- .queue_setup = rcar_vin_videobuf_setup,
- .buf_queue = rcar_vin_videobuf_queue,
- .stop_streaming = rcar_vin_stop_streaming,
- .wait_prepare = vb2_ops_wait_prepare,
- .wait_finish = vb2_ops_wait_finish,
-};
-
-static irqreturn_t rcar_vin_irq(int irq, void *data)
-{
- struct rcar_vin_priv *priv = data;
- u32 int_status;
- bool can_run = false, hw_stopped;
- int slot;
- unsigned int handled = 0;
-
- spin_lock(&priv->lock);
-
- int_status = ioread32(priv->base + VNINTS_REG);
- if (!int_status)
- goto done;
- /* ack interrupts */
- iowrite32(int_status, priv->base + VNINTS_REG);
- handled = 1;
-
- /* nothing to do if capture status is 'STOPPED' */
- if (priv->state == STOPPED)
- goto done;
-
- hw_stopped = !(ioread32(priv->base + VNMS_REG) & VNMS_CA);
-
- if (!priv->request_to_stop) {
- if (is_continuous_transfer(priv))
- slot = (ioread32(priv->base + VNMS_REG) &
- VNMS_FBS_MASK) >> VNMS_FBS_SHIFT;
- else
- slot = 0;
-
- priv->queue_buf[slot]->field = priv->field;
- priv->queue_buf[slot]->sequence = priv->sequence++;
- priv->queue_buf[slot]->vb2_buf.timestamp = ktime_get_ns();
- vb2_buffer_done(&priv->queue_buf[slot]->vb2_buf,
- VB2_BUF_STATE_DONE);
- priv->queue_buf[slot] = NULL;
-
- if (priv->state != STOPPING)
- can_run = rcar_vin_fill_hw_slot(priv);
-
- if (hw_stopped || !can_run) {
- priv->state = STOPPED;
- } else if (is_continuous_transfer(priv) &&
- list_empty(&priv->capture) &&
- priv->state == RUNNING) {
- /*
- * The continuous capturing requires an explicit stop
- * operation when there is no buffer to be set into
- * the VnMBm registers.
- */
- rcar_vin_request_capture_stop(priv);
- } else {
- rcar_vin_capture(priv);
- }
-
- } else if (hw_stopped) {
- priv->state = STOPPED;
- priv->request_to_stop = false;
- complete(&priv->capture_stop);
- }
-
-done:
- spin_unlock(&priv->lock);
-
- return IRQ_RETVAL(handled);
-}
-
-static int rcar_vin_add_device(struct soc_camera_device *icd)
-{
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
- struct rcar_vin_priv *priv = ici->priv;
- int i;
-
- for (i = 0; i < MAX_BUFFER_NUM; i++)
- priv->queue_buf[i] = NULL;
-
- pm_runtime_get_sync(ici->v4l2_dev.dev);
-
- dev_dbg(icd->parent, "R-Car VIN driver attached to camera %d\n",
- icd->devnum);
-
- return 0;
-}
-
-static void rcar_vin_remove_device(struct soc_camera_device *icd)
-{
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
- struct rcar_vin_priv *priv = ici->priv;
- struct vb2_v4l2_buffer *vbuf;
- int i;
-
- /* disable capture, disable interrupts */
- iowrite32(ioread32(priv->base + VNMC_REG) & ~VNMC_ME,
- priv->base + VNMC_REG);
- iowrite32(0, priv->base + VNIE_REG);
-
- priv->state = STOPPED;
- priv->request_to_stop = false;
-
- /* make sure active buffer is cancelled */
- spin_lock_irq(&priv->lock);
- for (i = 0; i < MAX_BUFFER_NUM; i++) {
- vbuf = priv->queue_buf[i];
- if (vbuf) {
- list_del_init(to_buf_list(vbuf));
- vb2_buffer_done(&vbuf->vb2_buf, VB2_BUF_STATE_ERROR);
- }
- }
- spin_unlock_irq(&priv->lock);
-
- pm_runtime_put(ici->v4l2_dev.dev);
-
- dev_dbg(icd->parent, "R-Car VIN driver detached from camera %d\n",
- icd->devnum);
-}
-
-static void set_coeff(struct rcar_vin_priv *priv, unsigned short xs)
-{
- int i;
- const struct vin_coeff *p_prev_set = NULL;
- const struct vin_coeff *p_set = NULL;
-
- /* Look for suitable coefficient values */
- for (i = 0; i < ARRAY_SIZE(vin_coeff_set); i++) {
- p_prev_set = p_set;
- p_set = &vin_coeff_set[i];
-
- if (xs < p_set->xs_value)
- break;
- }
-
- /* Use previous value if its XS value is closer */
- if (p_prev_set && p_set &&
- xs - p_prev_set->xs_value < p_set->xs_value - xs)
- p_set = p_prev_set;
-
- /* Set coefficient registers */
- iowrite32(p_set->coeff_set[0], priv->base + VNC1A_REG);
- iowrite32(p_set->coeff_set[1], priv->base + VNC1B_REG);
- iowrite32(p_set->coeff_set[2], priv->base + VNC1C_REG);
-
- iowrite32(p_set->coeff_set[3], priv->base + VNC2A_REG);
- iowrite32(p_set->coeff_set[4], priv->base + VNC2B_REG);
- iowrite32(p_set->coeff_set[5], priv->base + VNC2C_REG);
-
- iowrite32(p_set->coeff_set[6], priv->base + VNC3A_REG);
- iowrite32(p_set->coeff_set[7], priv->base + VNC3B_REG);
- iowrite32(p_set->coeff_set[8], priv->base + VNC3C_REG);
-
- iowrite32(p_set->coeff_set[9], priv->base + VNC4A_REG);
- iowrite32(p_set->coeff_set[10], priv->base + VNC4B_REG);
- iowrite32(p_set->coeff_set[11], priv->base + VNC4C_REG);
-
- iowrite32(p_set->coeff_set[12], priv->base + VNC5A_REG);
- iowrite32(p_set->coeff_set[13], priv->base + VNC5B_REG);
- iowrite32(p_set->coeff_set[14], priv->base + VNC5C_REG);
-
- iowrite32(p_set->coeff_set[15], priv->base + VNC6A_REG);
- iowrite32(p_set->coeff_set[16], priv->base + VNC6B_REG);
- iowrite32(p_set->coeff_set[17], priv->base + VNC6C_REG);
-
- iowrite32(p_set->coeff_set[18], priv->base + VNC7A_REG);
- iowrite32(p_set->coeff_set[19], priv->base + VNC7B_REG);
- iowrite32(p_set->coeff_set[20], priv->base + VNC7C_REG);
-
- iowrite32(p_set->coeff_set[21], priv->base + VNC8A_REG);
- iowrite32(p_set->coeff_set[22], priv->base + VNC8B_REG);
- iowrite32(p_set->coeff_set[23], priv->base + VNC8C_REG);
-}
-
-/* rect is guaranteed to not exceed the scaled camera rectangle */
-static int rcar_vin_set_rect(struct soc_camera_device *icd)
-{
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
- struct rcar_vin_cam *cam = icd->host_priv;
- struct rcar_vin_priv *priv = ici->priv;
- unsigned int left_offset, top_offset;
- unsigned char dsize = 0;
- struct v4l2_rect *cam_subrect = &cam->subrect;
- u32 value;
-
- dev_dbg(icd->parent, "Crop %ux%u@%u:%u\n",
- icd->user_width, icd->user_height, cam->vin_left, cam->vin_top);
-
- left_offset = cam->vin_left;
- top_offset = cam->vin_top;
-
- if (icd->current_fmt->host_fmt->fourcc == V4L2_PIX_FMT_RGB32 &&
- priv->chip == RCAR_E1)
- dsize = 1;
-
- dev_dbg(icd->parent, "Cam %ux%u@%u:%u\n",
- cam->width, cam->height, cam->vin_left, cam->vin_top);
- dev_dbg(icd->parent, "Cam subrect %ux%u@%u:%u\n",
- cam_subrect->width, cam_subrect->height,
- cam_subrect->left, cam_subrect->top);
-
- /* Set Start/End Pixel/Line Pre-Clip */
- iowrite32(left_offset << dsize, priv->base + VNSPPRC_REG);
- iowrite32((left_offset + cam_subrect->width - 1) << dsize,
- priv->base + VNEPPRC_REG);
- switch (priv->field) {
- case V4L2_FIELD_INTERLACED:
- case V4L2_FIELD_INTERLACED_TB:
- case V4L2_FIELD_INTERLACED_BT:
- iowrite32(top_offset / 2, priv->base + VNSLPRC_REG);
- iowrite32((top_offset + cam_subrect->height) / 2 - 1,
- priv->base + VNELPRC_REG);
- break;
- default:
- iowrite32(top_offset, priv->base + VNSLPRC_REG);
- iowrite32(top_offset + cam_subrect->height - 1,
- priv->base + VNELPRC_REG);
- break;
- }
-
- /* Set scaling coefficient */
- value = 0;
- if (cam_subrect->height != cam->out_height)
- value = (4096 * cam_subrect->height) / cam->out_height;
- dev_dbg(icd->parent, "YS Value: %x\n", value);
- iowrite32(value, priv->base + VNYS_REG);
-
- value = 0;
- if (cam_subrect->width != cam->out_width)
- value = (4096 * cam_subrect->width) / cam->out_width;
-
- /* Horizontal upscaling is up to double size */
- if (0 < value && value < 2048)
- value = 2048;
-
- dev_dbg(icd->parent, "XS Value: %x\n", value);
- iowrite32(value, priv->base + VNXS_REG);
-
- /* Horizontal upscaling is carried out by scaling down from double size */
- if (value < 4096)
- value *= 2;
-
- set_coeff(priv, value);
-
- /* Set Start/End Pixel/Line Post-Clip */
- iowrite32(0, priv->base + VNSPPOC_REG);
- iowrite32(0, priv->base + VNSLPOC_REG);
- iowrite32((cam->out_width - 1) << dsize, priv->base + VNEPPOC_REG);
- switch (priv->field) {
- case V4L2_FIELD_INTERLACED:
- case V4L2_FIELD_INTERLACED_TB:
- case V4L2_FIELD_INTERLACED_BT:
- iowrite32(cam->out_height / 2 - 1,
- priv->base + VNELPOC_REG);
- break;
- default:
- iowrite32(cam->out_height - 1, priv->base + VNELPOC_REG);
- break;
- }
-
- iowrite32(ALIGN(cam->out_width, 0x10), priv->base + VNIS_REG);
-
- return 0;
-}
-
-static void capture_stop_preserve(struct rcar_vin_priv *priv, u32 *vnmc)
-{
- *vnmc = ioread32(priv->base + VNMC_REG);
- /* module disable */
- iowrite32(*vnmc & ~VNMC_ME, priv->base + VNMC_REG);
-}
-
-static void capture_restore(struct rcar_vin_priv *priv, u32 vnmc)
-{
- unsigned long timeout = jiffies + 10 * HZ;
-
- /*
- * Wait until the end of the current frame. It can take a long time,
- * but if it has been aborted by a MRST1 reset, it should exit sooner.
- */
- while ((ioread32(priv->base + VNMS_REG) & VNMS_AV) &&
- time_before(jiffies, timeout))
- msleep(1);
-
- if (time_after(jiffies, timeout)) {
- dev_err(priv->ici.v4l2_dev.dev,
- "Timeout waiting for frame end! Interface problem?\n");
- return;
- }
-
- iowrite32(vnmc, priv->base + VNMC_REG);
-}
-
-#define VIN_MBUS_FLAGS (V4L2_MBUS_MASTER | \
- V4L2_MBUS_PCLK_SAMPLE_RISING | \
- V4L2_MBUS_HSYNC_ACTIVE_HIGH | \
- V4L2_MBUS_HSYNC_ACTIVE_LOW | \
- V4L2_MBUS_VSYNC_ACTIVE_HIGH | \
- V4L2_MBUS_VSYNC_ACTIVE_LOW | \
- V4L2_MBUS_DATA_ACTIVE_HIGH)
-
-static int rcar_vin_set_bus_param(struct soc_camera_device *icd)
-{
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
- struct rcar_vin_priv *priv = ici->priv;
- struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
- struct v4l2_mbus_config cfg;
- unsigned long common_flags;
- u32 vnmc;
- u32 val;
- int ret;
-
- capture_stop_preserve(priv, &vnmc);
-
- ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg);
- if (!ret) {
- common_flags = soc_mbus_config_compatible(&cfg, VIN_MBUS_FLAGS);
- if (!common_flags) {
- dev_warn(icd->parent,
- "MBUS flags incompatible: camera 0x%x, host 0x%x\n",
- cfg.flags, VIN_MBUS_FLAGS);
- return -EINVAL;
- }
- } else if (ret != -ENOIOCTLCMD) {
- return ret;
- } else {
- common_flags = VIN_MBUS_FLAGS;
- }
-
- /* Make choises, based on platform preferences */
- if ((common_flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) &&
- (common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)) {
- if (priv->pdata_flags & RCAR_VIN_HSYNC_ACTIVE_LOW)
- common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_HIGH;
- else
- common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_LOW;
- }
-
- if ((common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) &&
- (common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) {
- if (priv->pdata_flags & RCAR_VIN_VSYNC_ACTIVE_LOW)
- common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_HIGH;
- else
- common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_LOW;
- }
-
- cfg.flags = common_flags;
- ret = v4l2_subdev_call(sd, video, s_mbus_config, &cfg);
- if (ret < 0 && ret != -ENOIOCTLCMD)
- return ret;
-
- val = VNDMR2_FTEV | VNDMR2_VLV(1);
- if (!(common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW))
- val |= VNDMR2_VPS;
- if (!(common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW))
- val |= VNDMR2_HPS;
- iowrite32(val, priv->base + VNDMR2_REG);
-
- ret = rcar_vin_set_rect(icd);
- if (ret < 0)
- return ret;
-
- capture_restore(priv, vnmc);
-
- return 0;
-}
-
-static int rcar_vin_try_bus_param(struct soc_camera_device *icd,
- unsigned char buswidth)
-{
- struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
- struct v4l2_mbus_config cfg;
- int ret;
-
- ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg);
- if (ret == -ENOIOCTLCMD)
- return 0;
- else if (ret)
- return ret;
-
- if (buswidth > 24)
- return -EINVAL;
-
- /* check is there common mbus flags */
- ret = soc_mbus_config_compatible(&cfg, VIN_MBUS_FLAGS);
- if (ret)
- return 0;
-
- dev_warn(icd->parent,
- "MBUS flags incompatible: camera 0x%x, host 0x%x\n",
- cfg.flags, VIN_MBUS_FLAGS);
-
- return -EINVAL;
-}
-
-static bool rcar_vin_packing_supported(const struct soc_mbus_pixelfmt *fmt)
-{
- return fmt->packing == SOC_MBUS_PACKING_NONE ||
- (fmt->bits_per_sample > 8 &&
- fmt->packing == SOC_MBUS_PACKING_EXTEND16);
-}
-
-static const struct soc_mbus_pixelfmt rcar_vin_formats[] = {
- {
- .fourcc = V4L2_PIX_FMT_NV16,
- .name = "NV16",
- .bits_per_sample = 8,
- .packing = SOC_MBUS_PACKING_2X8_PADHI,
- .order = SOC_MBUS_ORDER_LE,
- .layout = SOC_MBUS_LAYOUT_PLANAR_Y_C,
- },
- {
- .fourcc = V4L2_PIX_FMT_YUYV,
- .name = "YUYV",
- .bits_per_sample = 16,
- .packing = SOC_MBUS_PACKING_NONE,
- .order = SOC_MBUS_ORDER_LE,
- .layout = SOC_MBUS_LAYOUT_PACKED,
- },
- {
- .fourcc = V4L2_PIX_FMT_UYVY,
- .name = "UYVY",
- .bits_per_sample = 16,
- .packing = SOC_MBUS_PACKING_NONE,
- .order = SOC_MBUS_ORDER_LE,
- .layout = SOC_MBUS_LAYOUT_PACKED,
- },
- {
- .fourcc = V4L2_PIX_FMT_RGB565,
- .name = "RGB565",
- .bits_per_sample = 16,
- .packing = SOC_MBUS_PACKING_NONE,
- .order = SOC_MBUS_ORDER_LE,
- .layout = SOC_MBUS_LAYOUT_PACKED,
- },
- {
- .fourcc = V4L2_PIX_FMT_RGB555X,
- .name = "ARGB1555",
- .bits_per_sample = 16,
- .packing = SOC_MBUS_PACKING_NONE,
- .order = SOC_MBUS_ORDER_LE,
- .layout = SOC_MBUS_LAYOUT_PACKED,
- },
- {
- .fourcc = V4L2_PIX_FMT_RGB32,
- .name = "RGB888",
- .bits_per_sample = 32,
- .packing = SOC_MBUS_PACKING_NONE,
- .order = SOC_MBUS_ORDER_LE,
- .layout = SOC_MBUS_LAYOUT_PACKED,
- },
- {
- .fourcc = V4L2_PIX_FMT_ARGB32,
- .name = "ARGB8888",
- .bits_per_sample = 32,
- .packing = SOC_MBUS_PACKING_NONE,
- .order = SOC_MBUS_ORDER_LE,
- .layout = SOC_MBUS_LAYOUT_PACKED,
- },
-};
-
-static int rcar_vin_get_formats(struct soc_camera_device *icd, unsigned int idx,
- struct soc_camera_format_xlate *xlate)
-{
- struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
- struct device *dev = icd->parent;
- int ret, k, n;
- int formats = 0;
- struct rcar_vin_cam *cam;
- struct v4l2_subdev_mbus_code_enum code = {
- .which = V4L2_SUBDEV_FORMAT_ACTIVE,
- .index = idx,
- };
- const struct soc_mbus_pixelfmt *fmt;
-
- ret = v4l2_subdev_call(sd, pad, enum_mbus_code, NULL, &code);
- if (ret < 0)
- return 0;
-
- fmt = soc_mbus_get_fmtdesc(code.code);
- if (!fmt) {
- dev_warn(dev, "unsupported format code #%u: %d\n", idx, code.code);
- return 0;
- }
-
- ret = rcar_vin_try_bus_param(icd, fmt->bits_per_sample);
- if (ret < 0)
- return 0;
-
- if (!icd->host_priv) {
- struct v4l2_subdev_format fmt = {
- .which = V4L2_SUBDEV_FORMAT_ACTIVE,
- };
- struct v4l2_mbus_framefmt *mf = &fmt.format;
- struct v4l2_rect rect;
- struct device *dev = icd->parent;
- int shift;
-
- ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &fmt);
- if (ret < 0)
- return ret;
-
- /* Cache current client geometry */
- ret = soc_camera_client_g_rect(sd, &rect);
- if (ret == -ENOIOCTLCMD) {
- /* Sensor driver doesn't support cropping */
- rect.left = 0;
- rect.top = 0;
- rect.width = mf->width;
- rect.height = mf->height;
- } else if (ret < 0) {
- return ret;
- }
-
- /*
- * If sensor proposes too large format then try smaller ones:
- * 1280x960, 640x480, 320x240
- */
- for (shift = 0; shift < 3; shift++) {
- if (mf->width <= VIN_MAX_WIDTH &&
- mf->height <= VIN_MAX_HEIGHT)
- break;
-
- mf->width = 1280 >> shift;
- mf->height = 960 >> shift;
- ret = v4l2_device_call_until_err(sd->v4l2_dev,
- soc_camera_grp_id(icd),
- pad, set_fmt, NULL,
- &fmt);
- if (ret < 0)
- return ret;
- }
-
- if (shift == 3) {
- dev_err(dev,
- "Failed to configure the client below %ux%u\n",
- mf->width, mf->height);
- return -EIO;
- }
-
- dev_dbg(dev, "camera fmt %ux%u\n", mf->width, mf->height);
-
- cam = kzalloc(sizeof(*cam), GFP_KERNEL);
- if (!cam)
- return -ENOMEM;
- /*
- * We are called with current camera crop,
- * initialise subrect with it
- */
- cam->rect = rect;
- cam->subrect = rect;
- cam->width = mf->width;
- cam->height = mf->height;
- cam->out_width = mf->width;
- cam->out_height = mf->height;
-
- icd->host_priv = cam;
- } else {
- cam = icd->host_priv;
- }
-
- /* Beginning of a pass */
- if (!idx)
- cam->extra_fmt = NULL;
-
- switch (code.code) {
- case MEDIA_BUS_FMT_YUYV8_1X16:
- case MEDIA_BUS_FMT_YUYV8_2X8:
- case MEDIA_BUS_FMT_YUYV10_2X10:
- case MEDIA_BUS_FMT_RGB888_1X24:
- if (cam->extra_fmt)
- break;
-
- /* Add all our formats that can be generated by VIN */
- cam->extra_fmt = rcar_vin_formats;
-
- n = ARRAY_SIZE(rcar_vin_formats);
- formats += n;
- for (k = 0; xlate && k < n; k++, xlate++) {
- xlate->host_fmt = &rcar_vin_formats[k];
- xlate->code = code.code;
- dev_dbg(dev, "Providing format %s using code %d\n",
- rcar_vin_formats[k].name, code.code);
- }
- break;
- default:
- if (!rcar_vin_packing_supported(fmt))
- return 0;
-
- dev_dbg(dev, "Providing format %s in pass-through mode\n",
- fmt->name);
- break;
- }
-
- /* Generic pass-through */
- formats++;
- if (xlate) {
- xlate->host_fmt = fmt;
- xlate->code = code.code;
- xlate++;
- }
-
- return formats;
-}
-
-static void rcar_vin_put_formats(struct soc_camera_device *icd)
-{
- kfree(icd->host_priv);
- icd->host_priv = NULL;
-}
-
-static int rcar_vin_set_selection(struct soc_camera_device *icd,
- struct v4l2_selection *sel)
-{
- const struct v4l2_rect *rect = &sel->r;
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
- struct rcar_vin_priv *priv = ici->priv;
- struct v4l2_selection cam_sel;
- struct rcar_vin_cam *cam = icd->host_priv;
- struct v4l2_rect *cam_rect = &cam_sel.r;
- struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
- struct device *dev = icd->parent;
- struct v4l2_subdev_format fmt = {
- .which = V4L2_SUBDEV_FORMAT_ACTIVE,
- };
- struct v4l2_mbus_framefmt *mf = &fmt.format;
- u32 vnmc;
- int ret, i;
-
- dev_dbg(dev, "S_SELECTION(%ux%u@%u:%u)\n", rect->width, rect->height,
- rect->left, rect->top);
-
- /* During camera cropping its output window can change too, stop VIN */
- capture_stop_preserve(priv, &vnmc);
- dev_dbg(dev, "VNMC_REG 0x%x\n", vnmc);
-
- /* Apply iterative camera S_SELECTION for new input window. */
- ret = soc_camera_client_s_selection(sd, sel, &cam_sel,
- &cam->rect, &cam->subrect);
- if (ret < 0)
- return ret;
-
- dev_dbg(dev, "camera cropped to %ux%u@%u:%u\n",
- cam_rect->width, cam_rect->height,
- cam_rect->left, cam_rect->top);
-
- /* On success cam_crop contains current camera crop */
-
- /* Retrieve camera output window */
- ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &fmt);
- if (ret < 0)
- return ret;
-
- if (mf->width > VIN_MAX_WIDTH || mf->height > VIN_MAX_HEIGHT)
- return -EINVAL;
-
- /* Cache camera output window */
- cam->width = mf->width;
- cam->height = mf->height;
-
- icd->user_width = cam->width;
- icd->user_height = cam->height;
-
- cam->vin_left = rect->left & ~1;
- cam->vin_top = rect->top & ~1;
-
- /* Use VIN cropping to crop to the new window. */
- ret = rcar_vin_set_rect(icd);
- if (ret < 0)
- return ret;
-
- cam->subrect = *rect;
-
- dev_dbg(dev, "VIN cropped to %ux%u@%u:%u\n",
- icd->user_width, icd->user_height,
- cam->vin_left, cam->vin_top);
-
- /* Restore capture */
- for (i = 0; i < MAX_BUFFER_NUM; i++) {
- if (priv->queue_buf[i] && priv->state == STOPPED) {
- vnmc |= VNMC_ME;
- break;
- }
- }
- capture_restore(priv, vnmc);
-
- /* Even if only camera cropping succeeded */
- return ret;
-}
-
-static int rcar_vin_get_selection(struct soc_camera_device *icd,
- struct v4l2_selection *sel)
-{
- struct rcar_vin_cam *cam = icd->host_priv;
-
- sel->r = cam->subrect;
-
- return 0;
-}
-
-/* Similar to set_crop multistage iterative algorithm */
-static int rcar_vin_set_fmt(struct soc_camera_device *icd,
- struct v4l2_format *f)
-{
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
- struct rcar_vin_priv *priv = ici->priv;
- struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
- struct rcar_vin_cam *cam = icd->host_priv;
- struct v4l2_pix_format *pix = &f->fmt.pix;
- struct v4l2_mbus_framefmt mf;
- struct device *dev = icd->parent;
- __u32 pixfmt = pix->pixelformat;
- const struct soc_camera_format_xlate *xlate;
- unsigned int vin_sub_width = 0, vin_sub_height = 0;
- int ret;
- bool can_scale;
- enum v4l2_field field;
- v4l2_std_id std;
-
- dev_dbg(dev, "S_FMT(pix=0x%x, %ux%u)\n",
- pixfmt, pix->width, pix->height);
-
- switch (pix->field) {
- default:
- pix->field = V4L2_FIELD_NONE;
- /* fall-through */
- case V4L2_FIELD_NONE:
- case V4L2_FIELD_TOP:
- case V4L2_FIELD_BOTTOM:
- case V4L2_FIELD_INTERLACED_TB:
- case V4L2_FIELD_INTERLACED_BT:
- field = pix->field;
- break;
- case V4L2_FIELD_INTERLACED:
- /* Query for standard if not explicitly mentioned _TB/_BT */
- ret = v4l2_subdev_call(sd, video, querystd, &std);
- if (ret == -ENOIOCTLCMD) {
- field = V4L2_FIELD_NONE;
- } else if (ret < 0) {
- return ret;
- } else {
- field = std & V4L2_STD_625_50 ?
- V4L2_FIELD_INTERLACED_TB :
- V4L2_FIELD_INTERLACED_BT;
- }
- break;
- }
-
- xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
- if (!xlate) {
- dev_warn(dev, "Format %x not found\n", pixfmt);
- return -EINVAL;
- }
- /* Calculate client output geometry */
- soc_camera_calc_client_output(icd, &cam->rect, &cam->subrect, pix, &mf,
- 12);
- mf.field = pix->field;
- mf.colorspace = pix->colorspace;
- mf.code = xlate->code;
-
- switch (pixfmt) {
- case V4L2_PIX_FMT_RGB32:
- can_scale = priv->chip != RCAR_E1;
- break;
- case V4L2_PIX_FMT_ARGB32:
- case V4L2_PIX_FMT_UYVY:
- case V4L2_PIX_FMT_YUYV:
- case V4L2_PIX_FMT_RGB565:
- case V4L2_PIX_FMT_RGB555X:
- can_scale = true;
- break;
- default:
- can_scale = false;
- break;
- }
-
- dev_dbg(dev, "request camera output %ux%u\n", mf.width, mf.height);
-
- ret = soc_camera_client_scale(icd, &cam->rect, &cam->subrect,
- &mf, &vin_sub_width, &vin_sub_height,
- can_scale, 12);
-
- /* Done with the camera. Now see if we can improve the result */
- dev_dbg(dev, "Camera %d fmt %ux%u, requested %ux%u\n",
- ret, mf.width, mf.height, pix->width, pix->height);
-
- if (ret == -ENOIOCTLCMD)
- dev_dbg(dev, "Sensor doesn't support scaling\n");
- else if (ret < 0)
- return ret;
-
- if (mf.code != xlate->code)
- return -EINVAL;
-
- /* Prepare VIN crop */
- cam->width = mf.width;
- cam->height = mf.height;
-
- /* Use VIN scaling to scale to the requested user window. */
-
- /* We cannot scale up */
- if (pix->width > vin_sub_width)
- vin_sub_width = pix->width;
-
- if (pix->height > vin_sub_height)
- vin_sub_height = pix->height;
-
- pix->colorspace = mf.colorspace;
-
- if (!can_scale) {
- pix->width = vin_sub_width;
- pix->height = vin_sub_height;
- }
-
- /*
- * We have calculated CFLCR, the actual configuration will be performed
- * in rcar_vin_set_bus_param()
- */
-
- dev_dbg(dev, "W: %u : %u, H: %u : %u\n",
- vin_sub_width, pix->width, vin_sub_height, pix->height);
-
- cam->out_width = pix->width;
- cam->out_height = pix->height;
-
- icd->current_fmt = xlate;
-
- priv->field = field;
-
- return 0;
-}
-
-static int rcar_vin_try_fmt(struct soc_camera_device *icd,
- struct v4l2_format *f)
-{
- const struct soc_camera_format_xlate *xlate;
- struct v4l2_pix_format *pix = &f->fmt.pix;
- struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
- struct v4l2_subdev_pad_config pad_cfg;
- struct v4l2_subdev_format format = {
- .which = V4L2_SUBDEV_FORMAT_TRY,
- };
- struct v4l2_mbus_framefmt *mf = &format.format;
- __u32 pixfmt = pix->pixelformat;
- int width, height;
- int ret;
-
- xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
- if (!xlate) {
- xlate = icd->current_fmt;
- dev_dbg(icd->parent, "Format %x not found, keeping %x\n",
- pixfmt, xlate->host_fmt->fourcc);
- pixfmt = xlate->host_fmt->fourcc;
- pix->pixelformat = pixfmt;
- pix->colorspace = icd->colorspace;
- }
-
- /* FIXME: calculate using depth and bus width */
- v4l_bound_align_image(&pix->width, 2, VIN_MAX_WIDTH, 1,
- &pix->height, 4, VIN_MAX_HEIGHT, 2, 0);
-
- width = pix->width;
- height = pix->height;
-
- /* let soc-camera calculate these values */
- pix->bytesperline = 0;
- pix->sizeimage = 0;
-
- /* limit to sensor capabilities */
- mf->width = pix->width;
- mf->height = pix->height;
- mf->field = pix->field;
- mf->code = xlate->code;
- mf->colorspace = pix->colorspace;
-
- ret = v4l2_device_call_until_err(sd->v4l2_dev, soc_camera_grp_id(icd),
- pad, set_fmt, &pad_cfg, &format);
- if (ret < 0)
- return ret;
-
- /* Adjust only if VIN cannot scale */
- if (pix->width > mf->width * 2)
- pix->width = mf->width * 2;
- if (pix->height > mf->height * 3)
- pix->height = mf->height * 3;
-
- pix->field = mf->field;
- pix->colorspace = mf->colorspace;
-
- if (pixfmt == V4L2_PIX_FMT_NV16) {
- /* FIXME: check against rect_max after converting soc-camera */
- /* We can scale precisely, need a bigger image from camera */
- if (pix->width < width || pix->height < height) {
- /*
- * We presume, the sensor behaves sanely, i.e. if
- * requested a bigger rectangle, it will not return a
- * smaller one.
- */
- mf->width = VIN_MAX_WIDTH;
- mf->height = VIN_MAX_HEIGHT;
- ret = v4l2_device_call_until_err(sd->v4l2_dev,
- soc_camera_grp_id(icd),
- pad, set_fmt, &pad_cfg,
- &format);
- if (ret < 0) {
- dev_err(icd->parent,
- "client try_fmt() = %d\n", ret);
- return ret;
- }
- }
- /* We will scale exactly */
- if (mf->width > width)
- pix->width = width;
- if (mf->height > height)
- pix->height = height;
- }
-
- return ret;
-}
-
-static unsigned int rcar_vin_poll(struct file *file, poll_table *pt)
-{
- struct soc_camera_device *icd = file->private_data;
-
- return vb2_poll(&icd->vb2_vidq, file, pt);
-}
-
-static int rcar_vin_querycap(struct soc_camera_host *ici,
- struct v4l2_capability *cap)
-{
- strlcpy(cap->card, "R_Car_VIN", sizeof(cap->card));
- cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
- cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
- snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s%d", DRV_NAME, ici->nr);
-
- return 0;
-}
-
-static int rcar_vin_init_videobuf2(struct vb2_queue *vq,
- struct soc_camera_device *icd)
-{
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
-
- vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- vq->io_modes = VB2_MMAP | VB2_USERPTR;
- vq->drv_priv = icd;
- vq->ops = &rcar_vin_vb2_ops;
- vq->mem_ops = &vb2_dma_contig_memops;
- vq->buf_struct_size = sizeof(struct rcar_vin_buffer);
- vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- vq->lock = &ici->host_lock;
- vq->dev = ici->v4l2_dev.dev;
-
- return vb2_queue_init(vq);
-}
-
-static struct soc_camera_host_ops rcar_vin_host_ops = {
- .owner = THIS_MODULE,
- .add = rcar_vin_add_device,
- .remove = rcar_vin_remove_device,
- .get_formats = rcar_vin_get_formats,
- .put_formats = rcar_vin_put_formats,
- .get_selection = rcar_vin_get_selection,
- .set_selection = rcar_vin_set_selection,
- .try_fmt = rcar_vin_try_fmt,
- .set_fmt = rcar_vin_set_fmt,
- .poll = rcar_vin_poll,
- .querycap = rcar_vin_querycap,
- .set_bus_param = rcar_vin_set_bus_param,
- .init_videobuf2 = rcar_vin_init_videobuf2,
-};
-
-#ifdef CONFIG_OF
-static const struct of_device_id rcar_vin_of_table[] = {
- { .compatible = "renesas,vin-r8a7795", .data = (void *)RCAR_GEN3 },
- { .compatible = "renesas,vin-r8a7794", .data = (void *)RCAR_GEN2 },
- { .compatible = "renesas,vin-r8a7793", .data = (void *)RCAR_GEN2 },
- { .compatible = "renesas,vin-r8a7791", .data = (void *)RCAR_GEN2 },
- { .compatible = "renesas,vin-r8a7790", .data = (void *)RCAR_GEN2 },
- { .compatible = "renesas,vin-r8a7779", .data = (void *)RCAR_H1 },
- { .compatible = "renesas,vin-r8a7778", .data = (void *)RCAR_M1 },
- { .compatible = "renesas,rcar-gen3-vin", .data = (void *)RCAR_GEN3 },
- { .compatible = "renesas,rcar-gen2-vin", .data = (void *)RCAR_GEN2 },
- { },
-};
-MODULE_DEVICE_TABLE(of, rcar_vin_of_table);
-#endif
-
-static int rcar_vin_probe(struct platform_device *pdev)
-{
- const struct of_device_id *match = NULL;
- struct rcar_vin_priv *priv;
- struct v4l2_of_endpoint ep;
- struct device_node *np;
- struct resource *mem;
- unsigned int pdata_flags;
- int irq, ret;
-
- match = of_match_device(of_match_ptr(rcar_vin_of_table), &pdev->dev);
-
- np = of_graph_get_next_endpoint(pdev->dev.of_node, NULL);
- if (!np) {
- dev_err(&pdev->dev, "could not find endpoint\n");
- return -EINVAL;
- }
-
- ret = v4l2_of_parse_endpoint(np, &ep);
- if (ret) {
- dev_err(&pdev->dev, "could not parse endpoint\n");
- return ret;
- }
-
- if (ep.bus_type == V4L2_MBUS_BT656)
- pdata_flags = RCAR_VIN_BT656;
- else {
- pdata_flags = 0;
- if (ep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
- pdata_flags |= RCAR_VIN_HSYNC_ACTIVE_LOW;
- if (ep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
- pdata_flags |= RCAR_VIN_VSYNC_ACTIVE_LOW;
- }
-
- of_node_put(np);
-
- dev_dbg(&pdev->dev, "pdata_flags = %08x\n", pdata_flags);
-
- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (mem == NULL)
- return -EINVAL;
-
- irq = platform_get_irq(pdev, 0);
- if (irq <= 0)
- return -EINVAL;
-
- priv = devm_kzalloc(&pdev->dev, sizeof(struct rcar_vin_priv),
- GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- priv->base = devm_ioremap_resource(&pdev->dev, mem);
- if (IS_ERR(priv->base))
- return PTR_ERR(priv->base);
-
- ret = devm_request_irq(&pdev->dev, irq, rcar_vin_irq, IRQF_SHARED,
- dev_name(&pdev->dev), priv);
- if (ret)
- return ret;
-
- priv->ici.priv = priv;
- priv->ici.v4l2_dev.dev = &pdev->dev;
- priv->ici.drv_name = dev_name(&pdev->dev);
- priv->ici.ops = &rcar_vin_host_ops;
-
- priv->pdata_flags = pdata_flags;
- if (!match) {
- priv->ici.nr = pdev->id;
- priv->chip = pdev->id_entry->driver_data;
- } else {
- priv->ici.nr = of_alias_get_id(pdev->dev.of_node, "vin");
- priv->chip = (enum chip_id)match->data;
- }
-
- spin_lock_init(&priv->lock);
- INIT_LIST_HEAD(&priv->capture);
-
- priv->state = STOPPED;
-
- pm_suspend_ignore_children(&pdev->dev, true);
- pm_runtime_enable(&pdev->dev);
-
- ret = soc_camera_host_register(&priv->ici);
- if (ret)
- goto cleanup;
-
- return 0;
-
-cleanup:
- pm_runtime_disable(&pdev->dev);
-
- return ret;
-}
-
-static int rcar_vin_remove(struct platform_device *pdev)
-{
- struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev);
-
- soc_camera_host_unregister(soc_host);
- pm_runtime_disable(&pdev->dev);
-
- return 0;
-}
-
-static struct platform_driver rcar_vin_driver = {
- .probe = rcar_vin_probe,
- .remove = rcar_vin_remove,
- .driver = {
- .name = DRV_NAME,
- .of_match_table = of_match_ptr(rcar_vin_of_table),
- },
-};
-
-module_platform_driver(rcar_vin_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:rcar_vin");
-MODULE_DESCRIPTION("Renesas R-Car VIN camera host driver");
projects / cascardo / linux.git / commitdiff