220 lines
6.0 KiB
C
220 lines
6.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* camss-csid.h
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*
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* Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module
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*
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* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
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* Copyright (C) 2015-2018 Linaro Ltd.
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*/
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#ifndef QC_MSM_CAMSS_CSID_H
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#define QC_MSM_CAMSS_CSID_H
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#include <linux/clk.h>
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#include <linux/interrupt.h>
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#include <media/media-entity.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-mediabus.h>
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#include <media/v4l2-subdev.h>
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#define MSM_CSID_PAD_SINK 0
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#define MSM_CSID_PAD_FIRST_SRC 1
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#define MSM_CSID_PADS_NUM 5
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#define MSM_CSID_PAD_SRC (MSM_CSID_PAD_FIRST_SRC)
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/* CSID hardware can demultiplex up to 4 outputs */
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#define MSM_CSID_MAX_SRC_STREAMS 4
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#define DATA_TYPE_EMBEDDED_DATA_8BIT 0x12
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#define DATA_TYPE_YUV420_8BIT 0x18
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#define DATA_TYPE_YUV420_10BIT 0x19
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#define DATA_TYPE_YUV420_8BIT_LEGACY 0x1a
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#define DATA_TYPE_YUV420_8BIT_SHIFTED 0x1c /* Chroma Shifted Pixel Sampling */
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#define DATA_TYPE_YUV420_10BIT_SHIFTED 0x1d /* Chroma Shifted Pixel Sampling */
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#define DATA_TYPE_YUV422_8BIT 0x1e
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#define DATA_TYPE_YUV422_10BIT 0x1f
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#define DATA_TYPE_RGB444 0x20
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#define DATA_TYPE_RGB555 0x21
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#define DATA_TYPE_RGB565 0x22
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#define DATA_TYPE_RGB666 0x23
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#define DATA_TYPE_RGB888 0x24
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#define DATA_TYPE_RAW_24BIT 0x27
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#define DATA_TYPE_RAW_6BIT 0x28
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#define DATA_TYPE_RAW_7BIT 0x29
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#define DATA_TYPE_RAW_8BIT 0x2a
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#define DATA_TYPE_RAW_10BIT 0x2b
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#define DATA_TYPE_RAW_12BIT 0x2c
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#define DATA_TYPE_RAW_14BIT 0x2d
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#define DATA_TYPE_RAW_16BIT 0x2e
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#define DATA_TYPE_RAW_20BIT 0x2f
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#define CSID_RESET_TIMEOUT_MS 500
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enum csid_testgen_mode {
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CSID_PAYLOAD_MODE_DISABLED = 0,
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CSID_PAYLOAD_MODE_INCREMENTING = 1,
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CSID_PAYLOAD_MODE_ALTERNATING_55_AA = 2,
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CSID_PAYLOAD_MODE_ALL_ZEROES = 3,
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CSID_PAYLOAD_MODE_ALL_ONES = 4,
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CSID_PAYLOAD_MODE_RANDOM = 5,
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CSID_PAYLOAD_MODE_USER_SPECIFIED = 6,
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CSID_PAYLOAD_MODE_NUM_SUPPORTED_GEN1 = 6, /* excluding disabled */
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CSID_PAYLOAD_MODE_COMPLEX_PATTERN = 7,
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CSID_PAYLOAD_MODE_COLOR_BOX = 8,
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CSID_PAYLOAD_MODE_COLOR_BARS = 9,
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CSID_PAYLOAD_MODE_NUM_SUPPORTED_GEN2 = 9, /* excluding disabled */
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};
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struct csid_format {
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u32 code;
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u8 data_type;
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u8 decode_format;
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u8 bpp;
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u8 spp; /* bus samples per pixel */
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};
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struct csid_testgen_config {
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enum csid_testgen_mode mode;
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const char * const*modes;
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u8 nmodes;
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u8 enabled;
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};
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struct csid_phy_config {
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u8 csiphy_id;
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u8 lane_cnt;
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u32 lane_assign;
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u32 en_vc;
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u8 need_vc_update;
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};
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struct csid_device;
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struct csid_hw_ops {
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/*
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* configure_stream - Configures and starts CSID input stream
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* @csid: CSID device
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*/
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void (*configure_stream)(struct csid_device *csid, u8 enable);
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/*
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* configure_testgen_pattern - Validates and configures output pattern mode
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* of test pattern generator
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* @csid: CSID device
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*/
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int (*configure_testgen_pattern)(struct csid_device *csid, s32 val);
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/*
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* hw_version - Read hardware version register from hardware
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* @csid: CSID device
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*/
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u32 (*hw_version)(struct csid_device *csid);
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/*
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* isr - CSID module interrupt service routine
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* @irq: Interrupt line
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* @dev: CSID device
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*
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* Return IRQ_HANDLED on success
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*/
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irqreturn_t (*isr)(int irq, void *dev);
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/*
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* reset - Trigger reset on CSID module and wait to complete
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* @csid: CSID device
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*
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* Return 0 on success or a negative error code otherwise
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*/
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int (*reset)(struct csid_device *csid);
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/*
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* src_pad_code - Pick an output/src format based on the input/sink format
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* @csid: CSID device
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* @sink_code: The sink format of the input
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* @match_format_idx: Request preferred index, as defined by subdevice csid_format.
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* Set @match_code to 0 if used.
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* @match_code: Request preferred code, set @match_format_idx to 0 if used
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*
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* Return 0 on failure or src format code otherwise
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*/
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u32 (*src_pad_code)(struct csid_device *csid, u32 sink_code,
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unsigned int match_format_idx, u32 match_code);
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/*
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* subdev_init - Initialize CSID device according for hardware revision
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* @csid: CSID device
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*/
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void (*subdev_init)(struct csid_device *csid);
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};
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struct csid_device {
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struct camss *camss;
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u8 id;
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struct v4l2_subdev subdev;
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struct media_pad pads[MSM_CSID_PADS_NUM];
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void __iomem *base;
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u32 irq;
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char irq_name[30];
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struct camss_clock *clock;
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int nclocks;
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struct regulator_bulk_data *supplies;
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int num_supplies;
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struct completion reset_complete;
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struct csid_testgen_config testgen;
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struct csid_phy_config phy;
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struct v4l2_mbus_framefmt fmt[MSM_CSID_PADS_NUM];
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struct v4l2_ctrl_handler ctrls;
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struct v4l2_ctrl *testgen_mode;
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const struct csid_format *formats;
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unsigned int nformats;
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const struct csid_hw_ops *ops;
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};
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struct resources;
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/*
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* csid_find_code - Find a format code in an array using array index or format code
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* @codes: Array of format codes
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* @ncodes: Length of @code array
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* @req_format_idx: Request preferred index, as defined by subdevice csid_format.
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* Set @match_code to 0 if used.
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* @match_code: Request preferred code, set @req_format_idx to 0 if used
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*
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* Return 0 on failure or format code otherwise
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*/
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u32 csid_find_code(u32 *codes, unsigned int ncode,
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unsigned int match_format_idx, u32 match_code);
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/*
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* csid_get_fmt_entry - Find csid_format entry with matching format code
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* @formats: Array of format csid_format entries
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* @nformats: Length of @nformats array
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* @code: Desired format code
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*
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* Return formats[0] on failure to find code
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*/
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const struct csid_format *csid_get_fmt_entry(const struct csid_format *formats,
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unsigned int nformats,
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u32 code);
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int msm_csid_subdev_init(struct camss *camss, struct csid_device *csid,
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const struct resources *res, u8 id);
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int msm_csid_register_entity(struct csid_device *csid,
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struct v4l2_device *v4l2_dev);
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void msm_csid_unregister_entity(struct csid_device *csid);
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void msm_csid_get_csid_id(struct media_entity *entity, u8 *id);
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extern const char * const csid_testgen_modes[];
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extern const struct csid_hw_ops csid_ops_4_1;
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extern const struct csid_hw_ops csid_ops_4_7;
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extern const struct csid_hw_ops csid_ops_gen2;
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#endif /* QC_MSM_CAMSS_CSID_H */
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