// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2013--2024 Intel Corporation */ #include <linux/auxiliary_bus.h> #include <linux/bitfield.h> #include <linux/bits.h> #include <linux/completion.h> #include <linux/container_of.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/dma-mapping.h> #include <linux/err.h> #include <linux/firmware.h> #include <linux/io.h> #include <linux/irqreturn.h> #include <linux/list.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/pci.h> #include <linux/pm_runtime.h> #include <linux/pm_qos.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/string.h> #include <media/ipu-bridge.h> #include <media/media-device.h> #include <media/media-entity.h> #include <media/v4l2-async.h> #include <media/v4l2-device.h> #include <media/v4l2-fwnode.h> #include "ipu6-bus.h" #include "ipu6-cpd.h" #include "ipu6-isys.h" #include "ipu6-isys-csi2.h" #include "ipu6-mmu.h" #include "ipu6-platform-buttress-regs.h" #include "ipu6-platform-isys-csi2-reg.h" #include "ipu6-platform-regs.h" #define IPU6_BUTTRESS_FABIC_CONTROL … #define GDA_ENABLE_IWAKE_INDEX … #define GDA_IWAKE_THRESHOLD_INDEX … #define GDA_IRQ_CRITICAL_THRESHOLD_INDEX … #define GDA_MEMOPEN_THRESHOLD_INDEX … #define DEFAULT_DID_RATIO … #define DEFAULT_IWAKE_THRESHOLD … #define DEFAULT_MEM_OPEN_TIME … #define ONE_THOUSAND_MICROSECOND … /* One page is 2KB, 8 x 16 x 16 = 2048B = 2KB */ #define ISF_DMA_TOP_GDA_PROFERTY_PAGE_SIZE … /* LTR & DID value are 10 bit at most */ #define LTR_DID_VAL_MAX … #define LTR_DEFAULT_VALUE … #define FILL_TIME_DEFAULT_VALUE … #define LTR_DID_PKGC_2R … #define LTR_SCALE_DEFAULT … #define LTR_SCALE_1024NS … #define DID_SCALE_1US … #define DID_SCALE_32US … #define REG_PKGC_PMON_CFG … #define VAL_PKGC_PMON_CFG_RESET … #define VAL_PKGC_PMON_CFG_START … #define IS_PIXEL_BUFFER_PAGES … /* * when iwake mode is disabled, the critical threshold is statically set * to 75% of the IS pixel buffer, criticalThreshold = (128 * 3) / 4 */ #define CRITICAL_THRESHOLD_IWAKE_DISABLE … fabric_ctrl; enum ltr_did_type { … }; #define ISYS_PM_QOS_VALUE … static int isys_isr_one(struct ipu6_bus_device *adev); static int isys_complete_ext_device_registration(struct ipu6_isys *isys, struct v4l2_subdev *sd, struct ipu6_isys_csi2_config *csi2) { … } static void isys_stream_init(struct ipu6_isys *isys) { … } static void isys_csi2_unregister_subdevices(struct ipu6_isys *isys) { … } static int isys_csi2_register_subdevices(struct ipu6_isys *isys) { … } static int isys_csi2_create_media_links(struct ipu6_isys *isys) { … } static void isys_unregister_video_devices(struct ipu6_isys *isys) { … } static int isys_register_video_devices(struct ipu6_isys *isys) { … } void isys_setup_hw(struct ipu6_isys *isys) { … } static void ipu6_isys_csi2_isr(struct ipu6_isys_csi2 *csi2) { … } irqreturn_t isys_isr(struct ipu6_bus_device *adev) { … } static void get_lut_ltrdid(struct ipu6_isys *isys, struct ltr_did *pltr_did) { … } static int set_iwake_register(struct ipu6_isys *isys, u32 index, u32 value) { … } /* * When input system is powered up and before enabling any new sensor capture, * or after disabling any sensor capture the following values need to be set: * LTR_value = LTR(usec) from calculation; * LTR_scale = 2; * DID_value = DID(usec) from calculation; * DID_scale = 2; * * When input system is powered down, the LTR and DID values * must be returned to the default values: * LTR_value = 1023; * LTR_scale = 5; * DID_value = 1023; * DID_scale = 2; */ static void set_iwake_ltrdid(struct ipu6_isys *isys, u16 ltr, u16 did, enum ltr_did_type use) { … } /* * Driver may clear register GDA_ENABLE_IWAKE before FW configures the * stream for debug purpose. Otherwise driver should not access this register. */ static void enable_iwake(struct ipu6_isys *isys, bool enable) { … } void update_watermark_setting(struct ipu6_isys *isys) { … } static void isys_iwake_watermark_init(struct ipu6_isys *isys) { … } static void isys_iwake_watermark_cleanup(struct ipu6_isys *isys) { … } /* The .bound() notifier callback when a match is found */ static int isys_notifier_bound(struct v4l2_async_notifier *notifier, struct v4l2_subdev *sd, struct v4l2_async_connection *asc) { … } static int isys_notifier_complete(struct v4l2_async_notifier *notifier) { … } static const struct v4l2_async_notifier_operations isys_async_ops = …; #define ISYS_MAX_PORTS … static int isys_notifier_init(struct ipu6_isys *isys) { … } static void isys_notifier_cleanup(struct ipu6_isys *isys) { … } static int isys_register_devices(struct ipu6_isys *isys) { … } static void isys_unregister_devices(struct ipu6_isys *isys) { … } static int isys_runtime_pm_resume(struct device *dev) { … } static int isys_runtime_pm_suspend(struct device *dev) { … } static int isys_suspend(struct device *dev) { … } static int isys_resume(struct device *dev) { … } static const struct dev_pm_ops isys_pm_ops = …; static void free_fw_msg_bufs(struct ipu6_isys *isys) { … } static int alloc_fw_msg_bufs(struct ipu6_isys *isys, int amount) { … } struct isys_fw_msgs *ipu6_get_fw_msg_buf(struct ipu6_isys_stream *stream) { … } void ipu6_cleanup_fw_msg_bufs(struct ipu6_isys *isys) { … } void ipu6_put_fw_msg_buf(struct ipu6_isys *isys, u64 data) { … } static int isys_probe(struct auxiliary_device *auxdev, const struct auxiliary_device_id *auxdev_id) { … } static void isys_remove(struct auxiliary_device *auxdev) { … } struct fwmsg { … }; static const struct fwmsg fw_msg[] = …; static u32 resp_type_to_index(int type) { … } static int isys_isr_one(struct ipu6_bus_device *adev) { … } static const struct ipu6_auxdrv_data ipu6_isys_auxdrv_data = …; static const struct auxiliary_device_id ipu6_isys_id_table[] = …; MODULE_DEVICE_TABLE(auxiliary, ipu6_isys_id_table); static struct auxiliary_driver isys_driver = …; module_auxiliary_driver(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …; MODULE_IMPORT_NS(…); MODULE_IMPORT_NS(…);
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