diff options
Diffstat (limited to 'drivers/media/platform/qcom/camss/camss-vfe.h')
| -rw-r--r-- | drivers/media/platform/qcom/camss/camss-vfe.h | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.h b/drivers/media/platform/qcom/camss/camss-vfe.h new file mode 100644 index 000000000000..ae9dad353a37 --- /dev/null +++ b/drivers/media/platform/qcom/camss/camss-vfe.h @@ -0,0 +1,317 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * camss-vfe.h + * + * Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module + * + * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved. + * Copyright (C) 2015-2018 Linaro Ltd. + */ +#ifndef QC_MSM_CAMSS_VFE_H +#define QC_MSM_CAMSS_VFE_H + +#include <linux/clk.h> +#include <linux/spinlock_types.h> +#include <media/media-entity.h> +#include <media/v4l2-device.h> +#include <media/v4l2-subdev.h> + +#include "camss-video.h" +#include "camss-vfe-gen1.h" + +#define MSM_VFE_PAD_SINK 0 +#define MSM_VFE_PAD_SRC 1 +#define MSM_VFE_PADS_NUM 2 + +#define MSM_VFE_IMAGE_MASTERS_NUM 7 +#define MSM_VFE_COMPOSITE_IRQ_NUM 4 + +/* VFE halt timeout */ +#define VFE_HALT_TIMEOUT_MS 100 +/* Frame drop value. VAL + UPDATES - 1 should not exceed 31 */ +#define VFE_FRAME_DROP_VAL 30 + +#define vfe_line_array(ptr_line) \ + ((const struct vfe_line (*)[]) &(ptr_line)[-(ptr_line)->id]) + +#define to_vfe(ptr_line) \ + container_of(vfe_line_array(ptr_line), struct vfe_device, line) + +enum vfe_output_state { + VFE_OUTPUT_OFF, + VFE_OUTPUT_RESERVED, + VFE_OUTPUT_SINGLE, + VFE_OUTPUT_CONTINUOUS, + VFE_OUTPUT_IDLE, + VFE_OUTPUT_STOPPING, + VFE_OUTPUT_ON, +}; + +enum vfe_line_id { + VFE_LINE_NONE = -1, + VFE_LINE_RDI0 = 0, + VFE_LINE_RDI1 = 1, + VFE_LINE_RDI2 = 2, + VFE_LINE_PIX = 3, + VFE_LINE_NUM_MAX = 4 +}; + +struct vfe_output { + u8 wm_num; + u8 wm_idx[3]; + + struct camss_buffer *buf[2]; + struct camss_buffer *last_buffer; + struct list_head pending_bufs; + + unsigned int drop_update_idx; + + union { + struct { + int active_buf; + int wait_sof; + } gen1; + struct { + int active_num; + } gen2; + }; + enum vfe_output_state state; + unsigned int sequence; + + int wait_reg_update; + struct completion sof; + struct completion reg_update; +}; + +struct vfe_line { + enum vfe_line_id id; + struct v4l2_subdev subdev; + struct media_pad pads[MSM_VFE_PADS_NUM]; + struct v4l2_mbus_framefmt fmt[MSM_VFE_PADS_NUM]; + struct v4l2_rect compose; + struct v4l2_rect crop; + struct camss_video video_out; + struct vfe_output output; + const struct camss_format_info *formats; + unsigned int nformats; +}; + +struct vfe_device; + +struct vfe_hw_ops { + void (*enable_irq)(struct vfe_device *vfe); + void (*global_reset)(struct vfe_device *vfe); + u32 (*hw_version)(struct vfe_device *vfe); + irqreturn_t (*isr)(int irq, void *dev); + void (*isr_read)(struct vfe_device *vfe, u32 *value0, u32 *value1); + void (*pm_domain_off)(struct vfe_device *vfe); + int (*pm_domain_on)(struct vfe_device *vfe); + void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id); + void (*reg_update_clear)(struct vfe_device *vfe, + enum vfe_line_id line_id); + void (*subdev_init)(struct device *dev, struct vfe_device *vfe); + int (*vfe_disable)(struct vfe_line *line); + int (*vfe_enable)(struct vfe_line *line); + int (*vfe_halt)(struct vfe_device *vfe); + void (*violation_read)(struct vfe_device *vfe); + void (*vfe_wm_start)(struct vfe_device *vfe, u8 wm, + struct vfe_line *line); + void (*vfe_wm_stop)(struct vfe_device *vfe, u8 wm); + void (*vfe_buf_done)(struct vfe_device *vfe, int port_id); + void (*vfe_wm_update)(struct vfe_device *vfe, u8 wm, u32 addr, + struct vfe_line *line); +}; + +struct vfe_isr_ops { + void (*reset_ack)(struct vfe_device *vfe); + void (*halt_ack)(struct vfe_device *vfe); + void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id); + void (*sof)(struct vfe_device *vfe, enum vfe_line_id line_id); + void (*comp_done)(struct vfe_device *vfe, u8 comp); + void (*wm_done)(struct vfe_device *vfe, u8 wm); +}; + +struct vfe_subdev_resources { + bool is_lite; + u8 line_num; + bool has_pd; + char *pd_name; + bool has_vbif; + char *vbif_name; + const struct vfe_hw_ops *hw_ops; + const struct camss_formats *formats_rdi; + const struct camss_formats *formats_pix; +}; + +struct vfe_device { + struct camss *camss; + u8 id; + void __iomem *base; + void __iomem *vbif_base; + u32 irq; + char irq_name[30]; + struct camss_clock *clock; + int nclocks; + struct completion reset_complete; + struct completion halt_complete; + struct mutex power_lock; + int power_count; + struct mutex stream_lock; + int stream_count; + spinlock_t output_lock; + enum vfe_line_id wm_output_map[MSM_VFE_IMAGE_MASTERS_NUM]; + struct vfe_line line[VFE_LINE_NUM_MAX]; + u32 reg_update; + u8 was_streaming; + const struct vfe_subdev_resources *res; + const struct vfe_hw_ops_gen1 *ops_gen1; + struct vfe_isr_ops isr_ops; + struct camss_video_ops video_ops; + struct device *genpd; + struct device_link *genpd_link; +}; + +struct camss_subdev_resources; + +int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe, + const struct camss_subdev_resources *res, u8 id); + +void msm_vfe_genpd_cleanup(struct vfe_device *vfe); + +int msm_vfe_register_entities(struct vfe_device *vfe, + struct v4l2_device *v4l2_dev); + +void msm_vfe_unregister_entities(struct vfe_device *vfe); + +/* + * vfe_buf_add_pending - Add output buffer to list of pending + * @output: VFE output + * @buffer: Video buffer + */ +void vfe_buf_add_pending(struct vfe_output *output, struct camss_buffer *buffer); + +struct camss_buffer *vfe_buf_get_pending(struct vfe_output *output); + +int vfe_flush_buffers(struct camss_video *vid, enum vb2_buffer_state state); + +/* + * vfe_isr_comp_done - Process composite image done interrupt + * @vfe: VFE Device + * @comp: Composite image id + */ +void vfe_isr_comp_done(struct vfe_device *vfe, u8 comp); + +void vfe_isr_reset_ack(struct vfe_device *vfe); +int vfe_put_output(struct vfe_line *line); +int vfe_release_wm(struct vfe_device *vfe, u8 wm); +int vfe_reserve_wm(struct vfe_device *vfe, enum vfe_line_id line_id); + +/* + * vfe_reset - Trigger reset on VFE module and wait to complete + * @vfe: VFE device + * + * Return 0 on success or a negative error code otherwise + */ +int vfe_reset(struct vfe_device *vfe); + +/* + * vfe_disable - Disable streaming on VFE line + * @line: VFE line + * + * Return 0 on success or a negative error code otherwise + */ +int vfe_disable(struct vfe_line *line); + +/* + * vfe_pm_domain_off - Disable power domains specific to this VFE. + * @vfe: VFE Device + */ +void vfe_pm_domain_off(struct vfe_device *vfe); + +/* + * vfe_pm_domain_on - Enable power domains specific to this VFE. + * @vfe: VFE Device + */ +int vfe_pm_domain_on(struct vfe_device *vfe); + +extern const struct camss_formats vfe_formats_rdi_8x16; +extern const struct camss_formats vfe_formats_pix_8x16; +extern const struct camss_formats vfe_formats_rdi_8x96; +extern const struct camss_formats vfe_formats_pix_8x96; +extern const struct camss_formats vfe_formats_rdi_845; +extern const struct camss_formats vfe_formats_pix_845; + +extern const struct vfe_hw_ops vfe_ops_4_1; +extern const struct vfe_hw_ops vfe_ops_4_7; +extern const struct vfe_hw_ops vfe_ops_4_8; +extern const struct vfe_hw_ops vfe_ops_170; +extern const struct vfe_hw_ops vfe_ops_340; +extern const struct vfe_hw_ops vfe_ops_480; +extern const struct vfe_hw_ops vfe_ops_680; +extern const struct vfe_hw_ops vfe_ops_gen3; + +int vfe_get(struct vfe_device *vfe); +void vfe_put(struct vfe_device *vfe); + +/* + * vfe_is_lite - Return if VFE is VFE lite. + * @vfe: VFE Device + * + * Some VFE lites have a different register layout. + * + * Return whether VFE is VFE lite + */ +bool vfe_is_lite(struct vfe_device *vfe); + +/* + * vfe_hw_version - Process write master done interrupt + * @vfe: VFE Device + * + * Return vfe hw version + */ +u32 vfe_hw_version(struct vfe_device *vfe); +/* + * vfe_enable - Enable streaming on VFE line + * @line: VFE line + * + * Return 0 on success or a negative error code otherwise + */ +int vfe_enable_v2(struct vfe_line *line); + +/* + * vfe_buf_done - Process write master done interrupt + * @vfe: VFE Device + * @wm: Write master id + */ +void vfe_buf_done(struct vfe_device *vfe, int wm); + +/* + * vfe_get_output_v2 - Get vfe output line + * line: VFE line + * + * Return 0 on success or a negative error code otherwise + */ +int vfe_get_output_v2(struct vfe_line *line); + +/* + * vfe_enable_output_v2 - Enable vfe output line + * line: VFE line + * + * Return 0 on success or a negative error code otherwise + */ +int vfe_enable_output_v2(struct vfe_line *line); + +/* + * vfe_queue_buffer_v2 - Add empty buffer + * @vid: Video device structure + * @buf: Buffer to be enqueued + * + * Add an empty buffer - depending on the current number of buffers it will be + * put in pending buffer queue or directly given to the hardware to be filled. + * + * Return 0 on success or a negative error code otherwise + */ +int vfe_queue_buffer_v2(struct camss_video *vid, + struct camss_buffer *buf); + +#endif /* QC_MSM_CAMSS_VFE_H */ |