2003 lines
55 KiB
C
2003 lines
55 KiB
C
/*
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* SoC-camera host driver for Renesas R-Car VIN unit
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*
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* Copyright (C) 2011-2013 Renesas Solutions Corp.
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* Copyright (C) 2013 Cogent Embedded, Inc., <source@cogentembedded.com>
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*
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* Based on V4L2 Driver for SuperH Mobile CEU interface "sh_mobile_ceu_camera.c"
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*
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* Copyright (C) 2008 Magnus Damm
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/platform_data/camera-rcar.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/slab.h>
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#include <linux/videodev2.h>
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#include <media/soc_camera.h>
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#include <media/soc_mediabus.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-dev.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-mediabus.h>
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#include <media/v4l2-of.h>
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#include <media/v4l2-subdev.h>
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#include <media/videobuf2-dma-contig.h>
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#include "soc_scale_crop.h"
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#define DRV_NAME "rcar_vin"
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/* Register offsets for R-Car VIN */
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#define VNMC_REG 0x00 /* Video n Main Control Register */
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#define VNMS_REG 0x04 /* Video n Module Status Register */
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#define VNFC_REG 0x08 /* Video n Frame Capture Register */
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#define VNSLPRC_REG 0x0C /* Video n Start Line Pre-Clip Register */
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#define VNELPRC_REG 0x10 /* Video n End Line Pre-Clip Register */
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#define VNSPPRC_REG 0x14 /* Video n Start Pixel Pre-Clip Register */
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#define VNEPPRC_REG 0x18 /* Video n End Pixel Pre-Clip Register */
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#define VNSLPOC_REG 0x1C /* Video n Start Line Post-Clip Register */
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#define VNELPOC_REG 0x20 /* Video n End Line Post-Clip Register */
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#define VNSPPOC_REG 0x24 /* Video n Start Pixel Post-Clip Register */
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#define VNEPPOC_REG 0x28 /* Video n End Pixel Post-Clip Register */
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#define VNIS_REG 0x2C /* Video n Image Stride Register */
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#define VNMB_REG(m) (0x30 + ((m) << 2)) /* Video n Memory Base m Register */
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#define VNIE_REG 0x40 /* Video n Interrupt Enable Register */
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#define VNINTS_REG 0x44 /* Video n Interrupt Status Register */
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#define VNSI_REG 0x48 /* Video n Scanline Interrupt Register */
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#define VNMTC_REG 0x4C /* Video n Memory Transfer Control Register */
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#define VNYS_REG 0x50 /* Video n Y Scale Register */
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#define VNXS_REG 0x54 /* Video n X Scale Register */
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#define VNDMR_REG 0x58 /* Video n Data Mode Register */
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#define VNDMR2_REG 0x5C /* Video n Data Mode Register 2 */
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#define VNUVAOF_REG 0x60 /* Video n UV Address Offset Register */
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#define VNC1A_REG 0x80 /* Video n Coefficient Set C1A Register */
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#define VNC1B_REG 0x84 /* Video n Coefficient Set C1B Register */
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#define VNC1C_REG 0x88 /* Video n Coefficient Set C1C Register */
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#define VNC2A_REG 0x90 /* Video n Coefficient Set C2A Register */
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#define VNC2B_REG 0x94 /* Video n Coefficient Set C2B Register */
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#define VNC2C_REG 0x98 /* Video n Coefficient Set C2C Register */
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#define VNC3A_REG 0xA0 /* Video n Coefficient Set C3A Register */
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#define VNC3B_REG 0xA4 /* Video n Coefficient Set C3B Register */
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#define VNC3C_REG 0xA8 /* Video n Coefficient Set C3C Register */
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#define VNC4A_REG 0xB0 /* Video n Coefficient Set C4A Register */
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#define VNC4B_REG 0xB4 /* Video n Coefficient Set C4B Register */
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#define VNC4C_REG 0xB8 /* Video n Coefficient Set C4C Register */
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#define VNC5A_REG 0xC0 /* Video n Coefficient Set C5A Register */
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#define VNC5B_REG 0xC4 /* Video n Coefficient Set C5B Register */
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#define VNC5C_REG 0xC8 /* Video n Coefficient Set C5C Register */
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#define VNC6A_REG 0xD0 /* Video n Coefficient Set C6A Register */
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#define VNC6B_REG 0xD4 /* Video n Coefficient Set C6B Register */
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#define VNC6C_REG 0xD8 /* Video n Coefficient Set C6C Register */
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#define VNC7A_REG 0xE0 /* Video n Coefficient Set C7A Register */
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#define VNC7B_REG 0xE4 /* Video n Coefficient Set C7B Register */
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#define VNC7C_REG 0xE8 /* Video n Coefficient Set C7C Register */
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#define VNC8A_REG 0xF0 /* Video n Coefficient Set C8A Register */
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#define VNC8B_REG 0xF4 /* Video n Coefficient Set C8B Register */
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#define VNC8C_REG 0xF8 /* Video n Coefficient Set C8C Register */
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/* Register bit fields for R-Car VIN */
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/* Video n Main Control Register bits */
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#define VNMC_FOC (1 << 21)
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#define VNMC_YCAL (1 << 19)
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#define VNMC_INF_YUV8_BT656 (0 << 16)
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#define VNMC_INF_YUV8_BT601 (1 << 16)
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#define VNMC_INF_YUV10_BT656 (2 << 16)
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#define VNMC_INF_YUV10_BT601 (3 << 16)
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#define VNMC_INF_YUV16 (5 << 16)
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#define VNMC_INF_RGB888 (6 << 16)
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#define VNMC_VUP (1 << 10)
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#define VNMC_IM_ODD (0 << 3)
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#define VNMC_IM_ODD_EVEN (1 << 3)
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#define VNMC_IM_EVEN (2 << 3)
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#define VNMC_IM_FULL (3 << 3)
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#define VNMC_BPS (1 << 1)
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#define VNMC_ME (1 << 0)
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/* Video n Module Status Register bits */
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#define VNMS_FBS_MASK (3 << 3)
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#define VNMS_FBS_SHIFT 3
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#define VNMS_AV (1 << 1)
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#define VNMS_CA (1 << 0)
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/* Video n Frame Capture Register bits */
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#define VNFC_C_FRAME (1 << 1)
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#define VNFC_S_FRAME (1 << 0)
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/* Video n Interrupt Enable Register bits */
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#define VNIE_FIE (1 << 4)
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#define VNIE_EFE (1 << 1)
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/* Video n Data Mode Register bits */
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#define VNDMR_EXRGB (1 << 8)
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#define VNDMR_BPSM (1 << 4)
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#define VNDMR_DTMD_YCSEP (1 << 1)
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#define VNDMR_DTMD_ARGB1555 (1 << 0)
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/* Video n Data Mode Register 2 bits */
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#define VNDMR2_VPS (1 << 30)
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#define VNDMR2_HPS (1 << 29)
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#define VNDMR2_FTEV (1 << 17)
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#define VNDMR2_VLV(n) ((n & 0xf) << 12)
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#define VIN_MAX_WIDTH 2048
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#define VIN_MAX_HEIGHT 2048
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#define TIMEOUT_MS 100
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enum chip_id {
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RCAR_GEN2,
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RCAR_H1,
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RCAR_M1,
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RCAR_E1,
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};
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struct vin_coeff {
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unsigned short xs_value;
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u32 coeff_set[24];
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};
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static const struct vin_coeff vin_coeff_set[] = {
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{ 0x0000, {
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0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000,
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0x00000000, 0x00000000, 0x00000000 },
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},
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{ 0x1000, {
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0x000fa400, 0x000fa400, 0x09625902,
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0x000003f8, 0x00000403, 0x3de0d9f0,
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0x001fffed, 0x00000804, 0x3cc1f9c3,
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0x001003de, 0x00000c01, 0x3cb34d7f,
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0x002003d2, 0x00000c00, 0x3d24a92d,
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0x00200bca, 0x00000bff, 0x3df600d2,
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0x002013cc, 0x000007ff, 0x3ed70c7e,
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0x00100fde, 0x00000000, 0x3f87c036 },
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},
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{ 0x1200, {
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0x002ffff1, 0x002ffff1, 0x02a0a9c8,
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0x002003e7, 0x001ffffa, 0x000185bc,
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0x002007dc, 0x000003ff, 0x3e52859c,
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0x00200bd4, 0x00000002, 0x3d53996b,
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0x00100fd0, 0x00000403, 0x3d04ad2d,
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0x00000bd5, 0x00000403, 0x3d35ace7,
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0x3ff003e4, 0x00000801, 0x3dc674a1,
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0x3fffe800, 0x00000800, 0x3e76f461 },
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},
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{ 0x1400, {
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0x00100be3, 0x00100be3, 0x04d1359a,
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0x00000fdb, 0x002003ed, 0x0211fd93,
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0x00000fd6, 0x002003f4, 0x0002d97b,
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0x000007d6, 0x002ffffb, 0x3e93b956,
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0x3ff003da, 0x001003ff, 0x3db49926,
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0x3fffefe9, 0x00100001, 0x3d655cee,
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0x3fffd400, 0x00000003, 0x3d65f4b6,
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0x000fb421, 0x00000402, 0x3dc6547e },
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},
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{ 0x1600, {
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0x00000bdd, 0x00000bdd, 0x06519578,
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0x3ff007da, 0x00000be3, 0x03c24973,
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0x3ff003d9, 0x00000be9, 0x01b30d5f,
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0x3ffff7df, 0x001003f1, 0x0003c542,
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0x000fdfec, 0x001003f7, 0x3ec4711d,
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0x000fc400, 0x002ffffd, 0x3df504f1,
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0x001fa81a, 0x002ffc00, 0x3d957cc2,
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0x002f8c3c, 0x00100000, 0x3db5c891 },
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},
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{ 0x1800, {
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0x3ff003dc, 0x3ff003dc, 0x0791e558,
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0x000ff7dd, 0x3ff007de, 0x05328554,
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0x000fe7e3, 0x3ff00be2, 0x03232546,
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0x000fd7ee, 0x000007e9, 0x0143bd30,
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0x001fb800, 0x000007ee, 0x00044511,
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0x002fa015, 0x000007f4, 0x3ef4bcee,
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0x002f8832, 0x001003f9, 0x3e4514c7,
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0x001f7853, 0x001003fd, 0x3de54c9f },
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},
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{ 0x1a00, {
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0x000fefe0, 0x000fefe0, 0x08721d3c,
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0x001fdbe7, 0x000ffbde, 0x0652a139,
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0x001fcbf0, 0x000003df, 0x0463292e,
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0x002fb3ff, 0x3ff007e3, 0x0293a91d,
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0x002f9c12, 0x3ff00be7, 0x01241905,
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0x001f8c29, 0x000007ed, 0x3fe470eb,
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0x000f7c46, 0x000007f2, 0x3f04b8ca,
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0x3fef7865, 0x000007f6, 0x3e74e4a8 },
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},
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{ 0x1c00, {
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0x001fd3e9, 0x001fd3e9, 0x08f23d26,
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0x002fbff3, 0x001fe3e4, 0x0712ad23,
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0x002fa800, 0x000ff3e0, 0x05631d1b,
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0x001f9810, 0x000ffbe1, 0x03b3890d,
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0x000f8c23, 0x000003e3, 0x0233e8fa,
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0x3fef843b, 0x000003e7, 0x00f430e4,
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0x3fbf8456, 0x3ff00bea, 0x00046cc8,
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0x3f8f8c72, 0x3ff00bef, 0x3f3490ac },
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},
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{ 0x1e00, {
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0x001fbbf4, 0x001fbbf4, 0x09425112,
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0x001fa800, 0x002fc7ed, 0x0792b110,
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0x000f980e, 0x001fdbe6, 0x0613110a,
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0x3fff8c20, 0x001fe7e3, 0x04a368fd,
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0x3fcf8c33, 0x000ff7e2, 0x0343b8ed,
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0x3f9f8c4a, 0x000fffe3, 0x0203f8da,
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0x3f5f9c61, 0x000003e6, 0x00e428c5,
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0x3f1fb07b, 0x000003eb, 0x3fe440af },
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},
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{ 0x2000, {
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0x000fa400, 0x000fa400, 0x09625902,
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0x3fff980c, 0x001fb7f5, 0x0812b0ff,
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0x3fdf901c, 0x001fc7ed, 0x06b2fcfa,
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0x3faf902d, 0x001fd3e8, 0x055348f1,
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0x3f7f983f, 0x001fe3e5, 0x04038ce3,
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0x3f3fa454, 0x001fefe3, 0x02e3c8d1,
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0x3f0fb86a, 0x001ff7e4, 0x01c3e8c0,
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0x3ecfd880, 0x000fffe6, 0x00c404ac },
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},
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{ 0x2200, {
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0x3fdf9c0b, 0x3fdf9c0b, 0x09725cf4,
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0x3fbf9818, 0x3fffa400, 0x0842a8f1,
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0x3f8f9827, 0x000fb3f7, 0x0702f0ec,
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0x3f5fa037, 0x000fc3ef, 0x05d330e4,
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0x3f2fac49, 0x001fcfea, 0x04a364d9,
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0x3effc05c, 0x001fdbe7, 0x038394ca,
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0x3ecfdc6f, 0x001fe7e6, 0x0273b0bb,
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0x3ea00083, 0x001fefe6, 0x0183c0a9 },
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},
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{ 0x2400, {
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0x3f9fa014, 0x3f9fa014, 0x098260e6,
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0x3f7f9c23, 0x3fcf9c0a, 0x08629ce5,
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0x3f4fa431, 0x3fefa400, 0x0742d8e1,
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0x3f1fb440, 0x3fffb3f8, 0x062310d9,
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0x3eefc850, 0x000fbbf2, 0x050340d0,
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0x3ecfe062, 0x000fcbec, 0x041364c2,
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0x3ea00073, 0x001fd3ea, 0x03037cb5,
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0x3e902086, 0x001fdfe8, 0x022388a5 },
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},
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{ 0x2600, {
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0x3f5fa81e, 0x3f5fa81e, 0x096258da,
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0x3f3fac2b, 0x3f8fa412, 0x088290d8,
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0x3f0fbc38, 0x3fafa408, 0x0772c8d5,
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0x3eefcc47, 0x3fcfa800, 0x0672f4ce,
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0x3ecfe456, 0x3fefaffa, 0x05531cc6,
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0x3eb00066, 0x3fffbbf3, 0x047334bb,
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0x3ea01c77, 0x000fc7ee, 0x039348ae,
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0x3ea04486, 0x000fd3eb, 0x02b350a1 },
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},
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{ 0x2800, {
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0x3f2fb426, 0x3f2fb426, 0x094250ce,
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0x3f0fc032, 0x3f4fac1b, 0x086284cd,
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0x3eefd040, 0x3f7fa811, 0x0782acc9,
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0x3ecfe84c, 0x3f9fa807, 0x06a2d8c4,
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0x3eb0005b, 0x3fbfac00, 0x05b2f4bc,
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0x3eb0186a, 0x3fdfb3fa, 0x04c308b4,
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0x3eb04077, 0x3fefbbf4, 0x03f31ca8,
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0x3ec06884, 0x000fbff2, 0x03031c9e },
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},
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{ 0x2a00, {
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0x3f0fc42d, 0x3f0fc42d, 0x090240c4,
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0x3eefd439, 0x3f2fb822, 0x08526cc2,
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0x3edfe845, 0x3f4fb018, 0x078294bf,
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0x3ec00051, 0x3f6fac0f, 0x06b2b4bb,
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0x3ec0185f, 0x3f8fac07, 0x05e2ccb4,
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0x3ec0386b, 0x3fafac00, 0x0502e8ac,
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0x3ed05c77, 0x3fcfb3fb, 0x0432f0a3,
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0x3ef08482, 0x3fdfbbf6, 0x0372f898 },
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},
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{ 0x2c00, {
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0x3eefdc31, 0x3eefdc31, 0x08e238b8,
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0x3edfec3d, 0x3f0fc828, 0x082258b9,
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0x3ed00049, 0x3f1fc01e, 0x077278b6,
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0x3ed01455, 0x3f3fb815, 0x06c294b2,
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0x3ed03460, 0x3f5fb40d, 0x0602acac,
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0x3ef0506c, 0x3f7fb006, 0x0542c0a4,
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0x3f107476, 0x3f9fb400, 0x0472c89d,
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0x3f309c80, 0x3fbfb7fc, 0x03b2cc94 },
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},
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{ 0x2e00, {
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0x3eefec37, 0x3eefec37, 0x088220b0,
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0x3ee00041, 0x3effdc2d, 0x07f244ae,
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0x3ee0144c, 0x3f0fd023, 0x07625cad,
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0x3ef02c57, 0x3f1fc81a, 0x06c274a9,
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0x3f004861, 0x3f3fbc13, 0x060288a6,
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0x3f20686b, 0x3f5fb80c, 0x05529c9e,
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0x3f408c74, 0x3f6fb805, 0x04b2ac96,
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0x3f80ac7e, 0x3f8fb800, 0x0402ac8e },
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},
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{ 0x3000, {
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0x3ef0003a, 0x3ef0003a, 0x084210a6,
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0x3ef01045, 0x3effec32, 0x07b228a7,
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0x3f00284e, 0x3f0fdc29, 0x073244a4,
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0x3f104058, 0x3f0fd420, 0x06a258a2,
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0x3f305c62, 0x3f2fc818, 0x0612689d,
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0x3f508069, 0x3f3fc011, 0x05728496,
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0x3f80a072, 0x3f4fc00a, 0x04d28c90,
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0x3fc0c07b, 0x3f6fbc04, 0x04429088 },
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},
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{ 0x3200, {
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0x3f00103e, 0x3f00103e, 0x07f1fc9e,
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0x3f102447, 0x3f000035, 0x0782149d,
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0x3f203c4f, 0x3f0ff02c, 0x07122c9c,
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0x3f405458, 0x3f0fe424, 0x06924099,
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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];
|
|
struct vb2_alloc_ctx *alloc_ctx;
|
|
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_CROP / G_CROP, 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,
|
|
const void *parg,
|
|
unsigned int *count,
|
|
unsigned int *num_planes,
|
|
unsigned int sizes[], void *alloc_ctxs[])
|
|
{
|
|
const struct v4l2_format *fmt = parg;
|
|
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 (fmt) {
|
|
const struct soc_camera_format_xlate *xlate;
|
|
unsigned int bytes_per_line;
|
|
int ret;
|
|
|
|
if (fmt->fmt.pix.sizeimage < icd->sizeimage)
|
|
return -EINVAL;
|
|
|
|
xlate = soc_camera_xlate_by_fourcc(icd,
|
|
fmt->fmt.pix.pixelformat);
|
|
if (!xlate)
|
|
return -EINVAL;
|
|
ret = soc_mbus_bytes_per_line(fmt->fmt.pix.width,
|
|
xlate->host_fmt);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
bytes_per_line = max_t(u32, fmt->fmt.pix.bytesperline, ret);
|
|
|
|
ret = soc_mbus_image_size(xlate->host_fmt, bytes_per_line,
|
|
fmt->fmt.pix.height);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
sizes[0] = max_t(u32, fmt->fmt.pix.sizeimage, ret);
|
|
} else {
|
|
/* Called from VIDIOC_REQBUFS or in compatibility mode */
|
|
sizes[0] = icd->sizeimage;
|
|
}
|
|
|
|
alloc_ctxs[0] = priv->alloc_ctx;
|
|
|
|
if (!vq->num_buffers)
|
|
priv->sequence = 0;
|
|
|
|
if (!*count)
|
|
*count = 2;
|
|
priv->vb_count = *count;
|
|
|
|
*num_planes = 1;
|
|
|
|
/* Number of hardware slots */
|
|
if (is_continuous_transfer(priv))
|
|
priv->nr_hw_slots = MAX_BUFFER_NUM;
|
|
else
|
|
priv->nr_hw_slots = 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_ARGB1555;
|
|
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) {
|
|
dmr = VNDMR_EXRGB;
|
|
break;
|
|
}
|
|
default:
|
|
dev_warn(icd->parent, "Invalid fourcc format (0x%x)\n",
|
|
icd->current_fmt->host_fmt->fourcc);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
|
|
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++;
|
|
v4l2_get_timestamp(&priv->queue_buf[slot]->timestamp);
|
|
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,
|
|
},
|
|
};
|
|
|
|
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_crop(struct soc_camera_device *icd,
|
|
const struct v4l2_crop *a)
|
|
{
|
|
struct v4l2_crop a_writable = *a;
|
|
const struct v4l2_rect *rect = &a_writable.c;
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
|
|
struct rcar_vin_priv *priv = ici->priv;
|
|
struct v4l2_crop cam_crop;
|
|
struct rcar_vin_cam *cam = icd->host_priv;
|
|
struct v4l2_rect *cam_rect = &cam_crop.c;
|
|
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_CROP(%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_CROP for new input window. */
|
|
ret = soc_camera_client_s_crop(sd, &a_writable, &cam_crop,
|
|
&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_crop(struct soc_camera_device *icd,
|
|
struct v4l2_crop *a)
|
|
{
|
|
struct rcar_vin_cam *cam = icd->host_priv;
|
|
|
|
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
a->c = 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_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;
|
|
|
|
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_crop = rcar_vin_get_crop,
|
|
.set_crop = rcar_vin_set_crop,
|
|
.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-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 },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, rcar_vin_of_table);
|
|
#endif
|
|
|
|
static struct platform_device_id rcar_vin_id_table[] = {
|
|
{ "r8a7779-vin", RCAR_H1 },
|
|
{ "r8a7778-vin", RCAR_M1 },
|
|
{ "uPD35004-vin", RCAR_E1 },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(platform, rcar_vin_id_table);
|
|
|
|
static int rcar_vin_probe(struct platform_device *pdev)
|
|
{
|
|
const struct of_device_id *match = NULL;
|
|
struct rcar_vin_priv *priv;
|
|
struct resource *mem;
|
|
struct rcar_vin_platform_data *pdata;
|
|
unsigned int pdata_flags;
|
|
int irq, ret;
|
|
|
|
if (pdev->dev.of_node) {
|
|
struct v4l2_of_endpoint ep;
|
|
struct device_node *np;
|
|
|
|
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);
|
|
} else {
|
|
pdata = pdev->dev.platform_data;
|
|
if (!pdata || !pdata->flags) {
|
|
dev_err(&pdev->dev, "platform data not set\n");
|
|
return -EINVAL;
|
|
}
|
|
pdata_flags = 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->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
|
|
if (IS_ERR(priv->alloc_ctx))
|
|
return PTR_ERR(priv->alloc_ctx);
|
|
|
|
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);
|
|
vb2_dma_contig_cleanup_ctx(priv->alloc_ctx);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rcar_vin_remove(struct platform_device *pdev)
|
|
{
|
|
struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev);
|
|
struct rcar_vin_priv *priv = container_of(soc_host,
|
|
struct rcar_vin_priv, ici);
|
|
|
|
soc_camera_host_unregister(soc_host);
|
|
pm_runtime_disable(&pdev->dev);
|
|
vb2_dma_contig_cleanup_ctx(priv->alloc_ctx);
|
|
|
|
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),
|
|
},
|
|
.id_table = rcar_vin_id_table,
|
|
};
|
|
|
|
module_platform_driver(rcar_vin_driver);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:rcar_vin");
|
|
MODULE_DESCRIPTION("Renesas R-Car VIN camera host driver");
|