// SPDX-License-Identifier: GPL-2.0-only /* * Microchip Image Sensor Controller (ISC) common driver base * * Copyright (C) 2016-2019 Microchip Technology, Inc. * * Author: Songjun Wu * Author: Eugen Hristev <[email protected]> * */ #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/math64.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_graph.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/videodev2.h> #include <linux/atmel-isc-media.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> #include <media/v4l2-image-sizes.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-subdev.h> #include <media/videobuf2-dma-contig.h> #include "microchip-isc-regs.h" #include "microchip-isc.h" #define ISC_IS_FORMAT_RAW(mbus_code) … #define ISC_IS_FORMAT_GREY(mbus_code) … static inline void isc_update_v4l2_ctrls(struct isc_device *isc) { … } static inline void isc_update_awb_ctrls(struct isc_device *isc) { … } static inline void isc_reset_awb_ctrls(struct isc_device *isc) { … } static int isc_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) { … } static int isc_buffer_prepare(struct vb2_buffer *vb) { … } static void isc_crop_pfe(struct isc_device *isc) { … } static void isc_start_dma(struct isc_device *isc) { … } static void isc_set_pipeline(struct isc_device *isc, u32 pipeline) { … } static int isc_update_profile(struct isc_device *isc) { … } static void isc_set_histogram(struct isc_device *isc, bool enable) { … } static int isc_configure(struct isc_device *isc) { … } static int isc_prepare_streaming(struct vb2_queue *vq) { … } static int isc_start_streaming(struct vb2_queue *vq, unsigned int count) { … } static void isc_unprepare_streaming(struct vb2_queue *vq) { … } static void isc_stop_streaming(struct vb2_queue *vq) { … } static void isc_buffer_queue(struct vb2_buffer *vb) { … } static const struct vb2_ops isc_vb2_ops = …; static int isc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { … } static int isc_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { … } static int isc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *fmt) { … } /* * Checks the current configured format, if ISC can output it, * considering which type of format the ISC receives from the sensor */ static int isc_try_validate_formats(struct isc_device *isc) { … } /* * Configures the RLP and DMA modules, depending on the output format * configured for the ISC. * If direct_dump == true, just dump raw data 8/16 bits depending on format. */ static int isc_try_configure_rlp_dma(struct isc_device *isc, bool direct_dump) { … } /* * Configuring pipeline modules, depending on which format the ISC outputs * and considering which format it has as input from the sensor. */ static int isc_try_configure_pipeline(struct isc_device *isc) { … } static int isc_try_fmt(struct isc_device *isc, struct v4l2_format *f) { … } static int isc_set_fmt(struct isc_device *isc, struct v4l2_format *f) { … } static int isc_validate(struct isc_device *isc) { … } static int isc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int isc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int isc_enum_input(struct file *file, void *priv, struct v4l2_input *inp) { … } static int isc_g_input(struct file *file, void *priv, unsigned int *i) { … } static int isc_s_input(struct file *file, void *priv, unsigned int i) { … } static int isc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a) { … } static int isc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) { … } static int isc_enum_framesizes(struct file *file, void *fh, struct v4l2_frmsizeenum *fsize) { … } static const struct v4l2_ioctl_ops isc_ioctl_ops = …; static int isc_open(struct file *file) { … } static int isc_release(struct file *file) { … } static const struct v4l2_file_operations isc_fops = …; irqreturn_t microchip_isc_interrupt(int irq, void *dev_id) { … } EXPORT_SYMBOL_GPL(…); static void isc_hist_count(struct isc_device *isc, u32 *min, u32 *max) { … } static void isc_wb_update(struct isc_ctrls *ctrls) { … } static void isc_awb_work(struct work_struct *w) { … } static int isc_s_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops isc_ctrl_ops = …; static int isc_s_awb_ctrl(struct v4l2_ctrl *ctrl) { … } static int isc_g_volatile_awb_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops isc_awb_ops = …; #define ISC_CTRL_OFF(_name, _id, _name_str) … ISC_CTRL_OFF(isc_r_off_ctrl, ISC_CID_R_OFFSET, "Red Component Offset"); ISC_CTRL_OFF(isc_b_off_ctrl, ISC_CID_B_OFFSET, "Blue Component Offset"); ISC_CTRL_OFF(isc_gr_off_ctrl, ISC_CID_GR_OFFSET, "Green Red Component Offset"); ISC_CTRL_OFF(isc_gb_off_ctrl, ISC_CID_GB_OFFSET, "Green Blue Component Offset"); #define ISC_CTRL_GAIN(_name, _id, _name_str) … ISC_CTRL_GAIN(isc_r_gain_ctrl, ISC_CID_R_GAIN, "Red Component Gain"); ISC_CTRL_GAIN(isc_b_gain_ctrl, ISC_CID_B_GAIN, "Blue Component Gain"); ISC_CTRL_GAIN(isc_gr_gain_ctrl, ISC_CID_GR_GAIN, "Green Red Component Gain"); ISC_CTRL_GAIN(isc_gb_gain_ctrl, ISC_CID_GB_GAIN, "Green Blue Component Gain"); static int isc_ctrl_init(struct isc_device *isc) { … } static int isc_async_bound(struct v4l2_async_notifier *notifier, struct v4l2_subdev *subdev, struct v4l2_async_connection *asd) { … } static void isc_async_unbind(struct v4l2_async_notifier *notifier, struct v4l2_subdev *subdev, struct v4l2_async_connection *asd) { … } struct isc_format *isc_find_format_by_code(struct isc_device *isc, unsigned int code, int *index) { … } EXPORT_SYMBOL_GPL(…); static int isc_set_default_fmt(struct isc_device *isc) { … } static int isc_async_complete(struct v4l2_async_notifier *notifier) { … } const struct v4l2_async_notifier_operations microchip_isc_async_ops = …; EXPORT_SYMBOL_GPL(…); void microchip_isc_subdev_cleanup(struct isc_device *isc) { … } EXPORT_SYMBOL_GPL(…); int microchip_isc_pipeline_init(struct isc_device *isc) { … } EXPORT_SYMBOL_GPL(…); static int isc_link_validate(struct media_link *link) { … } static const struct media_entity_operations isc_entity_operations = …; int isc_mc_init(struct isc_device *isc, u32 ver) { … } EXPORT_SYMBOL_GPL(…); void isc_mc_cleanup(struct isc_device *isc) { … } EXPORT_SYMBOL_GPL(…); /* regmap configuration */ #define MICROCHIP_ISC_REG_MAX … const struct regmap_config microchip_isc_regmap_config = …; EXPORT_SYMBOL_GPL(…); MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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