mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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ac3167257b
At over 4000 #includes, <linux/platform_device.h> is the 9th most #included header file in the Linux kernel. It does not need <linux/mod_devicetable.h>, so drop that header and explicitly add <linux/mod_devicetable.h> to source files that need it. 4146 #include <linux/platform_device.h> After this patch, there are 225 files that use <linux/mod_devicetable.h>, for a reduction of around 3900 times that <linux/mod_devicetable.h> does not have to be read & parsed. 225 #include <linux/mod_devicetable.h> This patch was build-tested on 20 different arch-es. It also makes these drivers SubmitChecklist#1 compliant. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kbuild test robot <lkp@intel.com> # drivers/media/platform/vimc/ Reported-by: kbuild test robot <lkp@intel.com> # drivers/pinctrl/pinctrl-u300.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
461 lines
12 KiB
C
461 lines
12 KiB
C
/*
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* vimc-sensor.c Virtual Media Controller Driver
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*
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* Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/component.h>
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#include <linux/freezer.h>
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#include <linux/kthread.h>
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#include <linux/module.h>
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#include <linux/mod_devicetable.h>
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#include <linux/platform_device.h>
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#include <linux/v4l2-mediabus.h>
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#include <linux/vmalloc.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-event.h>
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#include <media/v4l2-subdev.h>
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#include <media/tpg/v4l2-tpg.h>
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#include "vimc-common.h"
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#define VIMC_SEN_DRV_NAME "vimc-sensor"
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struct vimc_sen_device {
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struct vimc_ent_device ved;
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struct v4l2_subdev sd;
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struct device *dev;
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struct tpg_data tpg;
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struct task_struct *kthread_sen;
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u8 *frame;
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/* The active format */
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struct v4l2_mbus_framefmt mbus_format;
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struct v4l2_ctrl_handler hdl;
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};
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static const struct v4l2_mbus_framefmt fmt_default = {
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.width = 640,
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.height = 480,
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.code = MEDIA_BUS_FMT_RGB888_1X24,
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.field = V4L2_FIELD_NONE,
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.colorspace = V4L2_COLORSPACE_DEFAULT,
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};
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static int vimc_sen_init_cfg(struct v4l2_subdev *sd,
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struct v4l2_subdev_pad_config *cfg)
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{
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unsigned int i;
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for (i = 0; i < sd->entity.num_pads; i++) {
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struct v4l2_mbus_framefmt *mf;
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mf = v4l2_subdev_get_try_format(sd, cfg, i);
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*mf = fmt_default;
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}
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return 0;
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}
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static int vimc_sen_enum_mbus_code(struct v4l2_subdev *sd,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_mbus_code_enum *code)
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{
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const struct vimc_pix_map *vpix = vimc_pix_map_by_index(code->index);
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if (!vpix)
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return -EINVAL;
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code->code = vpix->code;
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return 0;
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}
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static int vimc_sen_enum_frame_size(struct v4l2_subdev *sd,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_frame_size_enum *fse)
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{
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const struct vimc_pix_map *vpix;
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if (fse->index)
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return -EINVAL;
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/* Only accept code in the pix map table */
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vpix = vimc_pix_map_by_code(fse->code);
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if (!vpix)
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return -EINVAL;
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fse->min_width = VIMC_FRAME_MIN_WIDTH;
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fse->max_width = VIMC_FRAME_MAX_WIDTH;
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fse->min_height = VIMC_FRAME_MIN_HEIGHT;
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fse->max_height = VIMC_FRAME_MAX_HEIGHT;
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return 0;
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}
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static int vimc_sen_get_fmt(struct v4l2_subdev *sd,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_format *fmt)
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{
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struct vimc_sen_device *vsen =
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container_of(sd, struct vimc_sen_device, sd);
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fmt->format = fmt->which == V4L2_SUBDEV_FORMAT_TRY ?
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*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) :
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vsen->mbus_format;
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return 0;
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}
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static void vimc_sen_tpg_s_format(struct vimc_sen_device *vsen)
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{
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const struct vimc_pix_map *vpix =
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vimc_pix_map_by_code(vsen->mbus_format.code);
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tpg_reset_source(&vsen->tpg, vsen->mbus_format.width,
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vsen->mbus_format.height, vsen->mbus_format.field);
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tpg_s_bytesperline(&vsen->tpg, 0, vsen->mbus_format.width * vpix->bpp);
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tpg_s_buf_height(&vsen->tpg, vsen->mbus_format.height);
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tpg_s_fourcc(&vsen->tpg, vpix->pixelformat);
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/* TODO: add support for V4L2_FIELD_ALTERNATE */
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tpg_s_field(&vsen->tpg, vsen->mbus_format.field, false);
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tpg_s_colorspace(&vsen->tpg, vsen->mbus_format.colorspace);
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tpg_s_ycbcr_enc(&vsen->tpg, vsen->mbus_format.ycbcr_enc);
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tpg_s_quantization(&vsen->tpg, vsen->mbus_format.quantization);
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tpg_s_xfer_func(&vsen->tpg, vsen->mbus_format.xfer_func);
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}
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static void vimc_sen_adjust_fmt(struct v4l2_mbus_framefmt *fmt)
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{
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const struct vimc_pix_map *vpix;
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/* Only accept code in the pix map table */
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vpix = vimc_pix_map_by_code(fmt->code);
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if (!vpix)
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fmt->code = fmt_default.code;
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fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH,
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VIMC_FRAME_MAX_WIDTH) & ~1;
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fmt->height = clamp_t(u32, fmt->height, VIMC_FRAME_MIN_HEIGHT,
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VIMC_FRAME_MAX_HEIGHT) & ~1;
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/* TODO: add support for V4L2_FIELD_ALTERNATE */
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if (fmt->field == V4L2_FIELD_ANY || fmt->field == V4L2_FIELD_ALTERNATE)
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fmt->field = fmt_default.field;
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vimc_colorimetry_clamp(fmt);
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}
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static int vimc_sen_set_fmt(struct v4l2_subdev *sd,
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struct v4l2_subdev_pad_config *cfg,
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struct v4l2_subdev_format *fmt)
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{
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struct vimc_sen_device *vsen = v4l2_get_subdevdata(sd);
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struct v4l2_mbus_framefmt *mf;
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if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
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/* Do not change the format while stream is on */
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if (vsen->frame)
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return -EBUSY;
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mf = &vsen->mbus_format;
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} else {
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mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
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}
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/* Set the new format */
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vimc_sen_adjust_fmt(&fmt->format);
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dev_dbg(vsen->dev, "%s: format update: "
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"old:%dx%d (0x%x, %d, %d, %d, %d) "
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"new:%dx%d (0x%x, %d, %d, %d, %d)\n", vsen->sd.name,
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/* old */
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mf->width, mf->height, mf->code,
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mf->colorspace, mf->quantization,
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mf->xfer_func, mf->ycbcr_enc,
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/* new */
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fmt->format.width, fmt->format.height, fmt->format.code,
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fmt->format.colorspace, fmt->format.quantization,
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fmt->format.xfer_func, fmt->format.ycbcr_enc);
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*mf = fmt->format;
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return 0;
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}
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static const struct v4l2_subdev_pad_ops vimc_sen_pad_ops = {
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.init_cfg = vimc_sen_init_cfg,
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.enum_mbus_code = vimc_sen_enum_mbus_code,
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.enum_frame_size = vimc_sen_enum_frame_size,
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.get_fmt = vimc_sen_get_fmt,
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.set_fmt = vimc_sen_set_fmt,
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};
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static int vimc_sen_tpg_thread(void *data)
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{
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struct vimc_sen_device *vsen = data;
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unsigned int i;
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set_freezable();
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set_current_state(TASK_UNINTERRUPTIBLE);
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for (;;) {
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try_to_freeze();
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if (kthread_should_stop())
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break;
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tpg_fill_plane_buffer(&vsen->tpg, 0, 0, vsen->frame);
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/* Send the frame to all source pads */
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for (i = 0; i < vsen->sd.entity.num_pads; i++)
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vimc_propagate_frame(&vsen->sd.entity.pads[i],
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vsen->frame);
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/* 60 frames per second */
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schedule_timeout(HZ/60);
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}
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return 0;
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}
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static int vimc_sen_s_stream(struct v4l2_subdev *sd, int enable)
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{
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struct vimc_sen_device *vsen =
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container_of(sd, struct vimc_sen_device, sd);
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int ret;
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if (enable) {
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const struct vimc_pix_map *vpix;
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unsigned int frame_size;
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if (vsen->kthread_sen)
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/* tpg is already executing */
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return 0;
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/* Calculate the frame size */
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vpix = vimc_pix_map_by_code(vsen->mbus_format.code);
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frame_size = vsen->mbus_format.width * vpix->bpp *
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vsen->mbus_format.height;
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/*
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* Allocate the frame buffer. Use vmalloc to be able to
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* allocate a large amount of memory
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*/
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vsen->frame = vmalloc(frame_size);
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if (!vsen->frame)
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return -ENOMEM;
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/* configure the test pattern generator */
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vimc_sen_tpg_s_format(vsen);
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/* Initialize the image generator thread */
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vsen->kthread_sen = kthread_run(vimc_sen_tpg_thread, vsen,
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"%s-sen", vsen->sd.v4l2_dev->name);
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if (IS_ERR(vsen->kthread_sen)) {
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dev_err(vsen->dev, "%s: kernel_thread() failed\n",
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vsen->sd.name);
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vfree(vsen->frame);
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vsen->frame = NULL;
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return PTR_ERR(vsen->kthread_sen);
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}
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} else {
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if (!vsen->kthread_sen)
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return 0;
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/* Stop image generator */
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ret = kthread_stop(vsen->kthread_sen);
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if (ret)
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return ret;
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vsen->kthread_sen = NULL;
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vfree(vsen->frame);
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vsen->frame = NULL;
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return 0;
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}
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return 0;
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}
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static struct v4l2_subdev_core_ops vimc_sen_core_ops = {
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.log_status = v4l2_ctrl_subdev_log_status,
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.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
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.unsubscribe_event = v4l2_event_subdev_unsubscribe,
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};
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static const struct v4l2_subdev_video_ops vimc_sen_video_ops = {
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.s_stream = vimc_sen_s_stream,
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};
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static const struct v4l2_subdev_ops vimc_sen_ops = {
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.core = &vimc_sen_core_ops,
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.pad = &vimc_sen_pad_ops,
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.video = &vimc_sen_video_ops,
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};
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static int vimc_sen_s_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct vimc_sen_device *vsen =
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container_of(ctrl->handler, struct vimc_sen_device, hdl);
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switch (ctrl->id) {
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case VIMC_CID_TEST_PATTERN:
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tpg_s_pattern(&vsen->tpg, ctrl->val);
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break;
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case V4L2_CID_HFLIP:
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tpg_s_hflip(&vsen->tpg, ctrl->val);
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break;
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case V4L2_CID_VFLIP:
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tpg_s_vflip(&vsen->tpg, ctrl->val);
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static const struct v4l2_ctrl_ops vimc_sen_ctrl_ops = {
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.s_ctrl = vimc_sen_s_ctrl,
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};
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static void vimc_sen_comp_unbind(struct device *comp, struct device *master,
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void *master_data)
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{
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struct vimc_ent_device *ved = dev_get_drvdata(comp);
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struct vimc_sen_device *vsen =
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container_of(ved, struct vimc_sen_device, ved);
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vimc_ent_sd_unregister(ved, &vsen->sd);
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v4l2_ctrl_handler_free(&vsen->hdl);
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tpg_free(&vsen->tpg);
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kfree(vsen);
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}
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/* Image Processing Controls */
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static const struct v4l2_ctrl_config vimc_sen_ctrl_class = {
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.flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY,
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.id = VIMC_CID_VIMC_CLASS,
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.name = "VIMC Controls",
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.type = V4L2_CTRL_TYPE_CTRL_CLASS,
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};
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static const struct v4l2_ctrl_config vimc_sen_ctrl_test_pattern = {
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.ops = &vimc_sen_ctrl_ops,
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.id = VIMC_CID_TEST_PATTERN,
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.name = "Test Pattern",
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.type = V4L2_CTRL_TYPE_MENU,
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.max = TPG_PAT_NOISE,
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.qmenu = tpg_pattern_strings,
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};
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static int vimc_sen_comp_bind(struct device *comp, struct device *master,
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void *master_data)
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{
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struct v4l2_device *v4l2_dev = master_data;
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struct vimc_platform_data *pdata = comp->platform_data;
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struct vimc_sen_device *vsen;
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int ret;
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/* Allocate the vsen struct */
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vsen = kzalloc(sizeof(*vsen), GFP_KERNEL);
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if (!vsen)
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return -ENOMEM;
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v4l2_ctrl_handler_init(&vsen->hdl, 4);
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v4l2_ctrl_new_custom(&vsen->hdl, &vimc_sen_ctrl_class, NULL);
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v4l2_ctrl_new_custom(&vsen->hdl, &vimc_sen_ctrl_test_pattern, NULL);
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v4l2_ctrl_new_std(&vsen->hdl, &vimc_sen_ctrl_ops,
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V4L2_CID_VFLIP, 0, 1, 1, 0);
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v4l2_ctrl_new_std(&vsen->hdl, &vimc_sen_ctrl_ops,
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V4L2_CID_HFLIP, 0, 1, 1, 0);
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vsen->sd.ctrl_handler = &vsen->hdl;
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if (vsen->hdl.error) {
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ret = vsen->hdl.error;
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goto err_free_vsen;
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}
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/* Initialize ved and sd */
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ret = vimc_ent_sd_register(&vsen->ved, &vsen->sd, v4l2_dev,
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pdata->entity_name,
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MEDIA_ENT_F_CAM_SENSOR, 1,
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(const unsigned long[1]) {MEDIA_PAD_FL_SOURCE},
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&vimc_sen_ops);
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if (ret)
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goto err_free_hdl;
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dev_set_drvdata(comp, &vsen->ved);
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vsen->dev = comp;
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/* Initialize the frame format */
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vsen->mbus_format = fmt_default;
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/* Initialize the test pattern generator */
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tpg_init(&vsen->tpg, vsen->mbus_format.width,
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vsen->mbus_format.height);
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ret = tpg_alloc(&vsen->tpg, VIMC_FRAME_MAX_WIDTH);
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if (ret)
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goto err_unregister_ent_sd;
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return 0;
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err_unregister_ent_sd:
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vimc_ent_sd_unregister(&vsen->ved, &vsen->sd);
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err_free_hdl:
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v4l2_ctrl_handler_free(&vsen->hdl);
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err_free_vsen:
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kfree(vsen);
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return ret;
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}
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static const struct component_ops vimc_sen_comp_ops = {
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.bind = vimc_sen_comp_bind,
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.unbind = vimc_sen_comp_unbind,
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};
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static int vimc_sen_probe(struct platform_device *pdev)
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{
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return component_add(&pdev->dev, &vimc_sen_comp_ops);
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}
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static int vimc_sen_remove(struct platform_device *pdev)
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{
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component_del(&pdev->dev, &vimc_sen_comp_ops);
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return 0;
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}
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static const struct platform_device_id vimc_sen_driver_ids[] = {
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{
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.name = VIMC_SEN_DRV_NAME,
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},
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{ }
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};
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static struct platform_driver vimc_sen_pdrv = {
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.probe = vimc_sen_probe,
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.remove = vimc_sen_remove,
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.id_table = vimc_sen_driver_ids,
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.driver = {
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.name = VIMC_SEN_DRV_NAME,
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},
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};
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module_platform_driver(vimc_sen_pdrv);
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MODULE_DEVICE_TABLE(platform, vimc_sen_driver_ids);
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MODULE_DESCRIPTION("Virtual Media Controller Driver (VIMC) Sensor");
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MODULE_AUTHOR("Helen Mae Koike Fornazier <helen.fornazier@gmail.com>");
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MODULE_LICENSE("GPL");
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