projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 34d1324e AU |
1 | /* |
| 2 | * TW5864 driver - common header file | |
| 3 | * | |
| 4 | * Copyright (C) 2016 Bluecherry, LLC <maintainers@bluecherrydvr.com> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License as published by | |
| 8 | * the Free Software Foundation; either version 2 of the License, or | |
| 9 | * (at your option) any later version. | |
| 10 | * | |
| 11 | * This program is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | * GNU General Public License for more details. | |
| 15 | */ | |
| 16 | ||
| 17 | #include <linux/pci.h> | |
| 18 | #include <linux/videodev2.h> | |
| 19 | #include <linux/notifier.h> | |
| 20 | #include <linux/delay.h> | |
| 21 | #include <linux/mutex.h> | |
| 22 | #include <linux/io.h> | |
| 23 | #include <linux/interrupt.h> | |
| 24 | ||
| 25 | #include <media/v4l2-common.h> | |
| 26 | #include <media/v4l2-ioctl.h> | |
| 27 | #include <media/v4l2-ctrls.h> | |
| 28 | #include <media/v4l2-device.h> | |
| 29 | #include <media/videobuf2-dma-sg.h> | |
| 30 | ||
| 31 | #include "tw5864-reg.h" | |
| 32 | ||
| 33 | #define PCI_DEVICE_ID_TECHWELL_5864 0x5864 | |
| 34 | ||
| 35 | #define TW5864_NORMS V4L2_STD_ALL | |
| 36 | ||
| 37 | /* ----------------------------------------------------------- */ | |
| 38 | /* card configuration */ | |
| 39 | ||
| 40 | #define TW5864_INPUTS 4 | |
| 41 | ||
| 42 | /* The TW5864 uses 192 (16x12) detection cells in full screen for motion | |
| 43 | * detection. Each detection cell is composed of 44 pixels and 20 lines for | |
| 44 | * NTSC and 24 lines for PAL. | |
| 45 | */ | |
| 46 | #define MD_CELLS_HOR 16 | |
| 47 | #define MD_CELLS_VERT 12 | |
| 48 | #define MD_CELLS (MD_CELLS_HOR * MD_CELLS_VERT) | |
| 49 | ||
| 50 | #define H264_VLC_BUF_SIZE 0x80000 | |
| 51 | #define H264_MV_BUF_SIZE 0x2000 /* device writes 5396 bytes */ | |
| 52 | #define QP_VALUE 28 | |
| 53 | #define MAX_GOP_SIZE 255 | |
| 54 | #define GOP_SIZE MAX_GOP_SIZE | |
| 55 | ||
| 56 | enum resolution { | |
| 57 | D1 = 1, | |
| 58 | HD1 = 2, /* half d1 - 360x(240|288) */ | |
| 59 | CIF = 3, | |
| 60 | QCIF = 4, | |
| 61 | }; | |
| 62 | ||
| 63 | /* ----------------------------------------------------------- */ | |
| 64 | /* device / file handle status */ | |
| 65 | ||
| 66 | struct tw5864_dev; /* forward delclaration */ | |
| 67 | ||
| 68 | /* buffer for one video/vbi/ts frame */ | |
| 69 | struct tw5864_buf { | |
| 70 | struct vb2_v4l2_buffer vb; | |
| 71 | struct list_head list; | |
| 72 | ||
| 73 | unsigned int size; | |
| 74 | }; | |
| 75 | ||
| 76 | struct tw5864_dma_buf { | |
| 77 | void *addr; | |
| 78 | dma_addr_t dma_addr; | |
| 79 | }; | |
| 80 | ||
| 81 | enum tw5864_vid_std { | |
| 82 | STD_NTSC = 0, /* NTSC (M) */ | |
| 83 | STD_PAL = 1, /* PAL (B, D, G, H, I) */ | |
| 84 | STD_SECAM = 2, /* SECAM */ | |
| 85 | STD_NTSC443 = 3, /* NTSC4.43 */ | |
| 86 | STD_PAL_M = 4, /* PAL (M) */ | |
| 87 | STD_PAL_CN = 5, /* PAL (CN) */ | |
| 88 | STD_PAL_60 = 6, /* PAL 60 */ | |
| 89 | STD_INVALID = 7, | |
| 90 | STD_AUTO = 7, | |
| 91 | }; | |
| 92 | ||
| 93 | struct tw5864_input { | |
| 94 | int nr; /* input number */ | |
| 95 | struct tw5864_dev *root; | |
| 96 | struct mutex lock; /* used for vidq and vdev */ | |
| 97 | spinlock_t slock; /* used for sync between ISR, tasklet & V4L2 API */ | |
| 98 | struct video_device vdev; | |
| 99 | struct v4l2_ctrl_handler hdl; | |
| 100 | struct vb2_queue vidq; | |
| 101 | struct list_head active; | |
| 102 | enum resolution resolution; | |
| 103 | unsigned int width, height; | |
| 104 | unsigned int frame_seqno; | |
| 105 | unsigned int frame_gop_seqno; | |
| 106 | unsigned int h264_idr_pic_id; | |
| 107 | int enabled; | |
| 108 | enum tw5864_vid_std std; | |
| 109 | v4l2_std_id v4l2_std; | |
| 110 | int tail_nb_bits; | |
| 111 | u8 tail; | |
| 112 | u8 *buf_cur_ptr; | |
| 113 | int buf_cur_space_left; | |
| 114 | ||
| 115 | u32 reg_interlacing; | |
| 116 | u32 reg_vlc; | |
| 117 | u32 reg_dsp_codec; | |
| 118 | u32 reg_dsp; | |
| 119 | u32 reg_emu; | |
| 120 | u32 reg_dsp_qp; | |
| 121 | u32 reg_dsp_ref_mvp_lambda; | |
| 122 | u32 reg_dsp_i4x4_weight; | |
| 123 | u32 buf_id; | |
| 124 | ||
| 125 | struct tw5864_buf *vb; | |
| 126 | ||
| 127 | struct v4l2_ctrl *md_threshold_grid_ctrl; | |
| 128 | u16 md_threshold_grid_values[12 * 16]; | |
| 129 | int qp; | |
| 130 | int gop; | |
| 131 | ||
| 132 | /* | |
| 133 | * In (1/MAX_FPS) units. | |
| 134 | * For max FPS (default), set to 1. | |
| 135 | * For 1 FPS, set to e.g. 32. | |
| 136 | */ | |
| 137 | int frame_interval; | |
| 138 | unsigned long new_frame_deadline; | |
| 139 | }; | |
| 140 | ||
| 141 | struct tw5864_h264_frame { | |
| 142 | struct tw5864_dma_buf vlc; | |
| 143 | struct tw5864_dma_buf mv; | |
| 144 | int vlc_len; | |
| 145 | u32 checksum; | |
| 146 | struct tw5864_input *input; | |
| 147 | u64 timestamp; | |
| 148 | unsigned int seqno; | |
| 149 | unsigned int gop_seqno; | |
| 150 | }; | |
| 151 | ||
| 152 | /* global device status */ | |
| 153 | struct tw5864_dev { | |
| 154 | spinlock_t slock; /* used for sync between ISR, tasklet & V4L2 API */ | |
| 155 | struct v4l2_device v4l2_dev; | |
| 156 | struct tw5864_input inputs[TW5864_INPUTS]; | |
| 157 | #define H264_BUF_CNT 4 | |
| 158 | struct tw5864_h264_frame h264_buf[H264_BUF_CNT]; | |
| 159 | int h264_buf_r_index; | |
| 160 | int h264_buf_w_index; | |
| 161 | ||
| 162 | struct tasklet_struct tasklet; | |
| 163 | ||
| 164 | int encoder_busy; | |
| 165 | /* Input number to check next for ready raw picture (in RR fashion) */ | |
| 166 | int next_input; | |
| 167 | ||
| 168 | /* pci i/o */ | |
| 169 | char name[64]; | |
| 170 | struct pci_dev *pci; | |
| 171 | void __iomem *mmio; | |
| 172 | u32 irqmask; | |
| 173 | }; | |
| 174 | ||
| 175 | #define tw_readl(reg) readl(dev->mmio + reg) | |
| 176 | #define tw_mask_readl(reg, mask) \ | |
| 177 | (tw_readl(reg) & (mask)) | |
| 178 | #define tw_mask_shift_readl(reg, mask, shift) \ | |
| 179 | (tw_mask_readl((reg), ((mask) << (shift))) >> (shift)) | |
| 180 | ||
| 181 | #define tw_writel(reg, value) writel((value), dev->mmio + reg) | |
| 182 | #define tw_mask_writel(reg, mask, value) \ | |
| 183 | tw_writel(reg, (tw_readl(reg) & ~(mask)) | ((value) & (mask))) | |
| 184 | #define tw_mask_shift_writel(reg, mask, shift, value) \ | |
| 185 | tw_mask_writel((reg), ((mask) << (shift)), ((value) << (shift))) | |
| 186 | ||
| 187 | #define tw_setl(reg, bit) tw_writel((reg), tw_readl(reg) | (bit)) | |
| 188 | #define tw_clearl(reg, bit) tw_writel((reg), tw_readl(reg) & ~(bit)) | |
| 189 | ||
| 190 | u8 tw5864_indir_readb(struct tw5864_dev *dev, u16 addr); | |
| 191 | #define tw_indir_readb(addr) tw5864_indir_readb(dev, addr) | |
| 192 | void tw5864_indir_writeb(struct tw5864_dev *dev, u16 addr, u8 data); | |
| 193 | #define tw_indir_writeb(addr, data) tw5864_indir_writeb(dev, addr, data) | |
| 194 | ||
| 195 | void tw5864_irqmask_apply(struct tw5864_dev *dev); | |
| 196 | int tw5864_video_init(struct tw5864_dev *dev, int *video_nr); | |
| 197 | void tw5864_video_fini(struct tw5864_dev *dev); | |
| 198 | void tw5864_prepare_frame_headers(struct tw5864_input *input); | |
| 199 | void tw5864_h264_put_stream_header(u8 **buf, size_t *space_left, int qp, | |
| 200 | int width, int height); | |
| 201 | void tw5864_h264_put_slice_header(u8 **buf, size_t *space_left, | |
| 202 | unsigned int idr_pic_id, | |
| 203 | unsigned int frame_gop_seqno, | |
| 204 | int *tail_nb_bits, u8 *tail); | |
| 205 | void tw5864_request_encoded_frame(struct tw5864_input *input); |