// SPDX-License-Identifier: GPL-2.0 /* * Support for Medifield PNW Camera Imaging ISP subsystem. * * Copyright (c) 2010 Intel Corporation. All Rights Reserved. * * Copyright (c) 2010 Silicon Hive www.siliconhive.com. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version * 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * */ #include <linux/delay.h> #include <linux/pci.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-event.h> #include "atomisp_cmd.h" #include "atomisp_common.h" #include "atomisp_fops.h" #include "atomisp_internal.h" #include "atomisp_ioctl.h" #include "atomisp-regs.h" #include "atomisp_compat.h" #include "sh_css_hrt.h" #include "gp_device.h" #include "device_access.h" #include "irq.h" static const char *DRIVER = …; /* max size 15 */ static const char *CARD = …; /* max size 31 */ /* * FIXME: ISP should not know beforehand all CIDs supported by sensor. * Instead, it needs to propagate to sensor unkonwn CIDs. */ static struct v4l2_queryctrl ci_v4l2_controls[] = …; static const u32 ctrls_num = …; /* * supported V4L2 fmts and resolutions */ const struct atomisp_format_bridge atomisp_output_fmts[] = …; const struct atomisp_format_bridge * atomisp_get_format_bridge(unsigned int pixelformat) { … } const struct atomisp_format_bridge * atomisp_get_format_bridge_from_mbus(u32 mbus_code) { … } int atomisp_pipe_check(struct atomisp_video_pipe *pipe, bool settings_change) { … } /* * v4l2 ioctls * return ISP capabilities */ static int atomisp_querycap(struct file *file, void *fh, struct v4l2_capability *cap) { … } /* * enum input are used to check primary/secondary camera */ static int atomisp_enum_input(struct file *file, void *fh, struct v4l2_input *input) { … } /* * get input are used to get current primary/secondary camera */ static int atomisp_g_input(struct file *file, void *fh, unsigned int *input) { … } static int atomisp_s_fmt_cap(struct file *file, void *fh, struct v4l2_format *f) { … } /* * set input are used to set current primary/secondary camera */ static int atomisp_s_input(struct file *file, void *fh, unsigned int input) { … } /* * With crop any framesize <= sensor-size can be made, give * userspace a list of sizes to choice from. */ static int atomisp_enum_framesizes_crop_inner(struct atomisp_device *isp, struct v4l2_frmsizeenum *fsize, const struct v4l2_rect *active, const struct v4l2_rect *native, int *valid_sizes) { … } static int atomisp_enum_framesizes_crop(struct atomisp_device *isp, struct v4l2_frmsizeenum *fsize) { … } static int atomisp_enum_framesizes(struct file *file, void *priv, struct v4l2_frmsizeenum *fsize) { … } static int atomisp_enum_frameintervals(struct file *file, void *priv, struct v4l2_frmivalenum *fival) { … } static int atomisp_enum_fmt_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) { … } /* This function looks up the closest available resolution. */ static int atomisp_try_fmt_cap(struct file *file, void *fh, struct v4l2_format *f) { … } static int atomisp_g_fmt_cap(struct file *file, void *fh, struct v4l2_format *f) { … } int atomisp_alloc_css_stat_bufs(struct atomisp_sub_device *asd, uint16_t stream_id) { … } /* * FIXME the abuse of buf->reserved2 in the qbuf and dqbuf wrappers comes from * the original atomisp buffer handling and should be replaced with proper V4L2 * per frame parameters use. * * Once this is fixed these wrappers can be removed, replacing them with direct * calls to vb2_ioctl_[d]qbuf(). */ static int atomisp_qbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer *buf) { … } static int atomisp_dqbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer *buf) { … } /* Input system HW workaround */ /* Input system address translation corrupts burst during */ /* invalidate. SW workaround for this is to set burst length */ /* manually to 128 in case of 13MPx snapshot and to 1 otherwise. */ static void atomisp_dma_burst_len_cfg(struct atomisp_sub_device *asd) { … } int atomisp_start_streaming(struct vb2_queue *vq, unsigned int count) { … } void atomisp_stop_streaming(struct vb2_queue *vq) { … } /* * To get the current value of a control. * applications initialize the id field of a struct v4l2_control and * call this ioctl with a pointer to this structure */ static int atomisp_g_ctrl(struct file *file, void *fh, struct v4l2_control *control) { … } /* * To change the value of a control. * applications initialize the id and value fields of a struct v4l2_control * and call this ioctl. */ static int atomisp_s_ctrl(struct file *file, void *fh, struct v4l2_control *control) { … } /* * To query the attributes of a control. * applications set the id field of a struct v4l2_queryctrl and call the * this ioctl with a pointer to this structure. The driver fills * the rest of the structure. */ static int atomisp_queryctl(struct file *file, void *fh, struct v4l2_queryctrl *qc) { … } static int atomisp_camera_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) { … } /* This ioctl allows the application to get multiple controls by class */ static int atomisp_g_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) { … } static int atomisp_camera_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) { … } /* This ioctl allows the application to set multiple controls by class */ static int atomisp_s_ext_ctrls(struct file *file, void *fh, struct v4l2_ext_controls *c) { … } /* * vidioc_g/s_param are used to switch isp running mode */ static int atomisp_g_parm(struct file *file, void *fh, struct v4l2_streamparm *parm) { … } static int atomisp_s_parm(struct file *file, void *fh, struct v4l2_streamparm *parm) { … } static long atomisp_vidioc_default(struct file *file, void *fh, bool valid_prio, unsigned int cmd, void *arg) { … } const struct v4l2_ioctl_ops atomisp_ioctl_ops = …;
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