diff options
Diffstat (limited to 'drivers/media/platform/qcom/camss/camss-csid.h')
| -rw-r--r-- | drivers/media/platform/qcom/camss/camss-csid.h | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h new file mode 100644 index 000000000..d4b48432a --- /dev/null +++ b/drivers/media/platform/qcom/camss/camss-csid.h @@ -0,0 +1,219 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * camss-csid.h + * + * Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module + * + * Copyright (c) 2011-2014, The Linux Foundation. All rights reserved. + * Copyright (C) 2015-2018 Linaro Ltd. + */ +#ifndef QC_MSM_CAMSS_CSID_H +#define QC_MSM_CAMSS_CSID_H + +#include <linux/clk.h> +#include <linux/interrupt.h> +#include <media/media-entity.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/v4l2-mediabus.h> +#include <media/v4l2-subdev.h> + +#define MSM_CSID_PAD_SINK 0 +#define MSM_CSID_PAD_FIRST_SRC 1 +#define MSM_CSID_PADS_NUM 5 + +#define MSM_CSID_PAD_SRC (MSM_CSID_PAD_FIRST_SRC) + +/* CSID hardware can demultiplex up to 4 outputs */ +#define MSM_CSID_MAX_SRC_STREAMS 4 + +#define DATA_TYPE_EMBEDDED_DATA_8BIT 0x12 +#define DATA_TYPE_YUV420_8BIT 0x18 +#define DATA_TYPE_YUV420_10BIT 0x19 +#define DATA_TYPE_YUV420_8BIT_LEGACY 0x1a +#define DATA_TYPE_YUV420_8BIT_SHIFTED 0x1c /* Chroma Shifted Pixel Sampling */ +#define DATA_TYPE_YUV420_10BIT_SHIFTED 0x1d /* Chroma Shifted Pixel Sampling */ +#define DATA_TYPE_YUV422_8BIT 0x1e +#define DATA_TYPE_YUV422_10BIT 0x1f +#define DATA_TYPE_RGB444 0x20 +#define DATA_TYPE_RGB555 0x21 +#define DATA_TYPE_RGB565 0x22 +#define DATA_TYPE_RGB666 0x23 +#define DATA_TYPE_RGB888 0x24 +#define DATA_TYPE_RAW_24BIT 0x27 +#define DATA_TYPE_RAW_6BIT 0x28 +#define DATA_TYPE_RAW_7BIT 0x29 +#define DATA_TYPE_RAW_8BIT 0x2a +#define DATA_TYPE_RAW_10BIT 0x2b +#define DATA_TYPE_RAW_12BIT 0x2c +#define DATA_TYPE_RAW_14BIT 0x2d +#define DATA_TYPE_RAW_16BIT 0x2e +#define DATA_TYPE_RAW_20BIT 0x2f + +#define CSID_RESET_TIMEOUT_MS 500 + +enum csid_testgen_mode { + CSID_PAYLOAD_MODE_DISABLED = 0, + CSID_PAYLOAD_MODE_INCREMENTING = 1, + CSID_PAYLOAD_MODE_ALTERNATING_55_AA = 2, + CSID_PAYLOAD_MODE_ALL_ZEROES = 3, + CSID_PAYLOAD_MODE_ALL_ONES = 4, + CSID_PAYLOAD_MODE_RANDOM = 5, + CSID_PAYLOAD_MODE_USER_SPECIFIED = 6, + CSID_PAYLOAD_MODE_NUM_SUPPORTED_GEN1 = 6, /* excluding disabled */ + CSID_PAYLOAD_MODE_COMPLEX_PATTERN = 7, + CSID_PAYLOAD_MODE_COLOR_BOX = 8, + CSID_PAYLOAD_MODE_COLOR_BARS = 9, + CSID_PAYLOAD_MODE_NUM_SUPPORTED_GEN2 = 9, /* excluding disabled */ +}; + +struct csid_format { + u32 code; + u8 data_type; + u8 decode_format; + u8 bpp; + u8 spp; /* bus samples per pixel */ +}; + +struct csid_testgen_config { + enum csid_testgen_mode mode; + const char * const*modes; + u8 nmodes; + u8 enabled; +}; + +struct csid_phy_config { + u8 csiphy_id; + u8 lane_cnt; + u32 lane_assign; + u32 en_vc; + u8 need_vc_update; +}; + +struct csid_device; + +struct csid_hw_ops { + /* + * configure_stream - Configures and starts CSID input stream + * @csid: CSID device + */ + void (*configure_stream)(struct csid_device *csid, u8 enable); + + /* + * configure_testgen_pattern - Validates and configures output pattern mode + * of test pattern generator + * @csid: CSID device + */ + int (*configure_testgen_pattern)(struct csid_device *csid, s32 val); + + /* + * hw_version - Read hardware version register from hardware + * @csid: CSID device + */ + u32 (*hw_version)(struct csid_device *csid); + + /* + * isr - CSID module interrupt service routine + * @irq: Interrupt line + * @dev: CSID device + * + * Return IRQ_HANDLED on success + */ + irqreturn_t (*isr)(int irq, void *dev); + + /* + * reset - Trigger reset on CSID module and wait to complete + * @csid: CSID device + * + * Return 0 on success or a negative error code otherwise + */ + int (*reset)(struct csid_device *csid); + + /* + * src_pad_code - Pick an output/src format based on the input/sink format + * @csid: CSID device + * @sink_code: The sink format of the input + * @match_format_idx: Request preferred index, as defined by subdevice csid_format. + * Set @match_code to 0 if used. + * @match_code: Request preferred code, set @match_format_idx to 0 if used + * + * Return 0 on failure or src format code otherwise + */ + u32 (*src_pad_code)(struct csid_device *csid, u32 sink_code, + unsigned int match_format_idx, u32 match_code); + + /* + * subdev_init - Initialize CSID device according for hardware revision + * @csid: CSID device + */ + void (*subdev_init)(struct csid_device *csid); +}; + +struct csid_device { + struct camss *camss; + u8 id; + struct v4l2_subdev subdev; + struct media_pad pads[MSM_CSID_PADS_NUM]; + void __iomem *base; + u32 irq; + char irq_name[30]; + struct camss_clock *clock; + int nclocks; + struct regulator_bulk_data *supplies; + int num_supplies; + struct completion reset_complete; + struct csid_testgen_config testgen; + struct csid_phy_config phy; + struct v4l2_mbus_framefmt fmt[MSM_CSID_PADS_NUM]; + struct v4l2_ctrl_handler ctrls; + struct v4l2_ctrl *testgen_mode; + const struct csid_format *formats; + unsigned int nformats; + const struct csid_hw_ops *ops; +}; + +struct resources; + +/* + * csid_find_code - Find a format code in an array using array index or format code + * @codes: Array of format codes + * @ncodes: Length of @code array + * @req_format_idx: Request preferred index, as defined by subdevice csid_format. + * Set @match_code to 0 if used. + * @match_code: Request preferred code, set @req_format_idx to 0 if used + * + * Return 0 on failure or format code otherwise + */ +u32 csid_find_code(u32 *codes, unsigned int ncode, + unsigned int match_format_idx, u32 match_code); + +/* + * csid_get_fmt_entry - Find csid_format entry with matching format code + * @formats: Array of format csid_format entries + * @nformats: Length of @nformats array + * @code: Desired format code + * + * Return formats[0] on failure to find code + */ +const struct csid_format *csid_get_fmt_entry(const struct csid_format *formats, + unsigned int nformats, + u32 code); + +int msm_csid_subdev_init(struct camss *camss, struct csid_device *csid, + const struct resources *res, u8 id); + +int msm_csid_register_entity(struct csid_device *csid, + struct v4l2_device *v4l2_dev); + +void msm_csid_unregister_entity(struct csid_device *csid); + +void msm_csid_get_csid_id(struct media_entity *entity, u8 *id); + +extern const char * const csid_testgen_modes[]; + +extern const struct csid_hw_ops csid_ops_4_1; +extern const struct csid_hw_ops csid_ops_4_7; +extern const struct csid_hw_ops csid_ops_gen2; + + +#endif /* QC_MSM_CAMSS_CSID_H */ |