diff options
Diffstat (limited to 'drivers/media/pci/tw5864/tw5864.h')
| -rw-r--r-- | drivers/media/pci/tw5864/tw5864.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/drivers/media/pci/tw5864/tw5864.h b/drivers/media/pci/tw5864/tw5864.h new file mode 100644 index 000000000..a8b6fbd5b --- /dev/null +++ b/drivers/media/pci/tw5864/tw5864.h @@ -0,0 +1,196 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * TW5864 driver - common header file + * + * Copyright (C) 2016 Bluecherry, LLC <maintainers@bluecherrydvr.com> + */ + +#include <linux/pci.h> +#include <linux/videodev2.h> +#include <linux/notifier.h> +#include <linux/delay.h> +#include <linux/mutex.h> +#include <linux/io.h> +#include <linux/interrupt.h> + +#include <media/v4l2-common.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/videobuf2-dma-sg.h> + +#include "tw5864-reg.h" + +#define PCI_DEVICE_ID_TECHWELL_5864 0x5864 + +#define TW5864_NORMS V4L2_STD_ALL + +/* ----------------------------------------------------------- */ +/* card configuration */ + +#define TW5864_INPUTS 4 + +/* The TW5864 uses 192 (16x12) detection cells in full screen for motion + * detection. Each detection cell is composed of 44 pixels and 20 lines for + * NTSC and 24 lines for PAL. + */ +#define MD_CELLS_HOR 16 +#define MD_CELLS_VERT 12 +#define MD_CELLS (MD_CELLS_HOR * MD_CELLS_VERT) + +#define H264_VLC_BUF_SIZE 0x80000 +#define H264_MV_BUF_SIZE 0x2000 /* device writes 5396 bytes */ +#define QP_VALUE 28 +#define MAX_GOP_SIZE 255 +#define GOP_SIZE MAX_GOP_SIZE + +enum resolution { + D1 = 1, + HD1 = 2, /* half d1 - 360x(240|288) */ + CIF = 3, + QCIF = 4, +}; + +/* ----------------------------------------------------------- */ +/* device / file handle status */ + +struct tw5864_dev; /* forward delclaration */ + +/* buffer for one video/vbi/ts frame */ +struct tw5864_buf { + struct vb2_v4l2_buffer vb; + struct list_head list; + + unsigned int size; +}; + +struct tw5864_dma_buf { + void *addr; + dma_addr_t dma_addr; +}; + +enum tw5864_vid_std { + STD_NTSC = 0, /* NTSC (M) */ + STD_PAL = 1, /* PAL (B, D, G, H, I) */ + STD_SECAM = 2, /* SECAM */ + STD_NTSC443 = 3, /* NTSC4.43 */ + STD_PAL_M = 4, /* PAL (M) */ + STD_PAL_CN = 5, /* PAL (CN) */ + STD_PAL_60 = 6, /* PAL 60 */ + STD_INVALID = 7, + STD_AUTO = 7, +}; + +struct tw5864_input { + int nr; /* input number */ + struct tw5864_dev *root; + struct mutex lock; /* used for vidq and vdev */ + spinlock_t slock; /* used for sync between ISR, tasklet & V4L2 API */ + struct video_device vdev; + struct v4l2_ctrl_handler hdl; + struct vb2_queue vidq; + struct list_head active; + enum resolution resolution; + unsigned int width, height; + unsigned int frame_seqno; + unsigned int frame_gop_seqno; + unsigned int h264_idr_pic_id; + int enabled; + enum tw5864_vid_std std; + v4l2_std_id v4l2_std; + int tail_nb_bits; + u8 tail; + u8 *buf_cur_ptr; + int buf_cur_space_left; + + u32 reg_interlacing; + u32 reg_vlc; + u32 reg_dsp_codec; + u32 reg_dsp; + u32 reg_emu; + u32 reg_dsp_qp; + u32 reg_dsp_ref_mvp_lambda; + u32 reg_dsp_i4x4_weight; + u32 buf_id; + + struct tw5864_buf *vb; + + struct v4l2_ctrl *md_threshold_grid_ctrl; + u16 md_threshold_grid_values[12 * 16]; + int qp; + int gop; + + /* + * In (1/MAX_FPS) units. + * For max FPS (default), set to 1. + * For 1 FPS, set to e.g. 32. + */ + int frame_interval; + unsigned long new_frame_deadline; +}; + +struct tw5864_h264_frame { + struct tw5864_dma_buf vlc; + struct tw5864_dma_buf mv; + int vlc_len; + u32 checksum; + struct tw5864_input *input; + u64 timestamp; + unsigned int seqno; + unsigned int gop_seqno; +}; + +/* global device status */ +struct tw5864_dev { + spinlock_t slock; /* used for sync between ISR, tasklet & V4L2 API */ + struct v4l2_device v4l2_dev; + struct tw5864_input inputs[TW5864_INPUTS]; +#define H264_BUF_CNT 4 + struct tw5864_h264_frame h264_buf[H264_BUF_CNT]; + int h264_buf_r_index; + int h264_buf_w_index; + + struct tasklet_struct tasklet; + + int encoder_busy; + /* Input number to check next for ready raw picture (in RR fashion) */ + int next_input; + + /* pci i/o */ + char name[64]; + struct pci_dev *pci; + void __iomem *mmio; + u32 irqmask; +}; + +#define tw_readl(reg) readl(dev->mmio + reg) +#define tw_mask_readl(reg, mask) \ + (tw_readl(reg) & (mask)) +#define tw_mask_shift_readl(reg, mask, shift) \ + (tw_mask_readl((reg), ((mask) << (shift))) >> (shift)) + +#define tw_writel(reg, value) writel((value), dev->mmio + reg) +#define tw_mask_writel(reg, mask, value) \ + tw_writel(reg, (tw_readl(reg) & ~(mask)) | ((value) & (mask))) +#define tw_mask_shift_writel(reg, mask, shift, value) \ + tw_mask_writel((reg), ((mask) << (shift)), ((value) << (shift))) + +#define tw_setl(reg, bit) tw_writel((reg), tw_readl(reg) | (bit)) +#define tw_clearl(reg, bit) tw_writel((reg), tw_readl(reg) & ~(bit)) + +u8 tw5864_indir_readb(struct tw5864_dev *dev, u16 addr); +#define tw_indir_readb(addr) tw5864_indir_readb(dev, addr) +void tw5864_indir_writeb(struct tw5864_dev *dev, u16 addr, u8 data); +#define tw_indir_writeb(addr, data) tw5864_indir_writeb(dev, addr, data) + +void tw5864_irqmask_apply(struct tw5864_dev *dev); +int tw5864_video_init(struct tw5864_dev *dev, int *video_nr); +void tw5864_video_fini(struct tw5864_dev *dev); +void tw5864_prepare_frame_headers(struct tw5864_input *input); +void tw5864_h264_put_stream_header(u8 **buf, size_t *space_left, int qp, + int width, int height); +void tw5864_h264_put_slice_header(u8 **buf, size_t *space_left, + unsigned int idr_pic_id, + unsigned int frame_gop_seqno, + int *tail_nb_bits, u8 *tail); +void tw5864_request_encoded_frame(struct tw5864_input *input); |