diff options
Diffstat (limited to 'drivers/media/platform/renesas/rzv2h-ivc/rzv2h-ivc.h')
| -rw-r--r-- | drivers/media/platform/renesas/rzv2h-ivc/rzv2h-ivc.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/media/platform/renesas/rzv2h-ivc/rzv2h-ivc.h b/drivers/media/platform/renesas/rzv2h-ivc/rzv2h-ivc.h new file mode 100644 index 000000000000..3bcaab990b0f --- /dev/null +++ b/drivers/media/platform/renesas/rzv2h-ivc/rzv2h-ivc.h @@ -0,0 +1,130 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Renesas RZ/V2H(P) Input Video Control Block driver + * + * Copyright (C) 2025 Ideas on Board Oy + */ + +#include <linux/clk.h> +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/reset.h> +#include <linux/spinlock.h> +#include <linux/types.h> +#include <linux/videodev2.h> +#include <linux/workqueue.h> + +#include <media/media-entity.h> +#include <media/v4l2-device.h> +#include <media/v4l2-subdev.h> +#include <media/videobuf2-core.h> +#include <media/videobuf2-v4l2.h> + +#define RZV2H_IVC_REG_AXIRX_PLNUM 0x0000 +#define RZV2H_IVC_ONE_EXPOSURE 0x00 +#define RZV2H_IVC_TWO_EXPOSURE 0x01 +#define RZV2H_IVC_REG_AXIRX_PXFMT 0x0004 +#define RZV2H_IVC_INPUT_FMT_MIPI (0 << 16) +#define RZV2H_IVC_INPUT_FMT_CRU_PACKED BIT(16) +#define RZV2H_IVC_PXFMT_DTYPE GENMASK(7, 0) +#define RZV2H_IVC_REG_AXIRX_SADDL_P0 0x0010 +#define RZV2H_IVC_REG_AXIRX_SADDH_P0 0x0014 +#define RZV2H_IVC_REG_AXIRX_SADDL_P1 0x0018 +#define RZV2H_IVC_REG_AXIRX_SADDH_P1 0x001c +#define RZV2H_IVC_REG_AXIRX_HSIZE 0x0020 +#define RZV2H_IVC_REG_AXIRX_VSIZE 0x0024 +#define RZV2H_IVC_REG_AXIRX_BLANK 0x0028 +#define RZV2H_IVC_VBLANK(x) ((x) << 16) +#define RZV2H_IVC_REG_AXIRX_STRD 0x0030 +#define RZV2H_IVC_REG_AXIRX_ISSU 0x0040 +#define RZV2H_IVC_REG_AXIRX_ERACT 0x0048 +#define RZV2H_IVC_REG_FM_CONTEXT 0x0100 +#define RZV2H_IVC_SOFTWARE_CFG 0x00 +#define RZV2H_IVC_SINGLE_CONTEXT_SW_HW_CFG BIT(0) +#define RZV2H_IVC_MULTI_CONTEXT_SW_HW_CFG BIT(1) +#define RZV2H_IVC_REG_FM_MCON 0x0104 +#define RZV2H_IVC_REG_FM_FRCON 0x0108 +#define RZV2H_IVC_REG_FM_STOP 0x010c +#define RZV2H_IVC_REG_FM_INT_EN 0x0120 +#define RZV2H_IVC_VVAL_IFPE BIT(0) +#define RZV2H_IVC_REG_FM_INT_STA 0x0124 +#define RZV2H_IVC_REG_AXIRX_FIFOCAP0 0x0208 +#define RZV2H_IVC_REG_CORE_CAPCON 0x020c +#define RZV2H_IVC_REG_CORE_FIFOCAP0 0x0228 +#define RZV2H_IVC_REG_CORE_FIFOCAP1 0x022c + +#define RZV2H_IVC_MIN_WIDTH 640 +#define RZV2H_IVC_MAX_WIDTH 4096 +#define RZV2H_IVC_MIN_HEIGHT 480 +#define RZV2H_IVC_MAX_HEIGHT 4096 +#define RZV2H_IVC_DEFAULT_WIDTH 1920 +#define RZV2H_IVC_DEFAULT_HEIGHT 1080 + +#define RZV2H_IVC_NUM_HW_RESOURCES 3 + +struct device; + +enum rzv2h_ivc_subdev_pads { + RZV2H_IVC_SUBDEV_SINK_PAD, + RZV2H_IVC_SUBDEV_SOURCE_PAD, + RZV2H_IVC_NUM_SUBDEV_PADS +}; + +struct rzv2h_ivc_format { + u32 fourcc; + /* + * The CRU packed pixel formats are bayer-order agnostic, so each could + * support any one of the 4 possible media bus formats. + */ + u32 mbus_codes[4]; + u8 dtype; +}; + +struct rzv2h_ivc { + struct device *dev; + void __iomem *base; + struct clk_bulk_data clks[RZV2H_IVC_NUM_HW_RESOURCES]; + struct reset_control_bulk_data resets[RZV2H_IVC_NUM_HW_RESOURCES]; + int irqnum; + u8 vvalid_ifp; + + struct { + struct video_device dev; + struct vb2_queue vb2q; + struct media_pad pad; + } vdev; + + struct { + struct v4l2_subdev sd; + struct media_pad pads[RZV2H_IVC_NUM_SUBDEV_PADS]; + } subdev; + + struct { + /* Spinlock to guard buffer queue */ + spinlock_t lock; + struct workqueue_struct *async_wq; + struct work_struct work; + struct list_head queue; + struct rzv2h_ivc_buf *curr; + unsigned int sequence; + } buffers; + + struct { + struct v4l2_pix_format_mplane pix; + const struct rzv2h_ivc_format *fmt; + } format; + + /* Mutex to provide to vb2 */ + struct mutex lock; + /* Lock to protect the interrupt counter */ + spinlock_t spinlock; +}; + +int rzv2h_ivc_init_vdev(struct rzv2h_ivc *ivc, struct v4l2_device *v4l2_dev); +void rzv2h_deinit_video_dev_and_queue(struct rzv2h_ivc *ivc); +void rzv2h_ivc_buffer_done(struct rzv2h_ivc *ivc); +int rzv2h_ivc_initialise_subdevice(struct rzv2h_ivc *ivc); +void rzv2h_ivc_deinit_subdevice(struct rzv2h_ivc *ivc); +void rzv2h_ivc_write(struct rzv2h_ivc *ivc, u32 addr, u32 val); +void rzv2h_ivc_update_bits(struct rzv2h_ivc *ivc, unsigned int addr, + u32 mask, u32 val); |