1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * TW5864 driver - common header file |
4 | * |
5 | * Copyright (C) 2016 Bluecherry, LLC <maintainers@bluecherrydvr.com> |
6 | */ |
7 | |
8 | #include <linux/pci.h> |
9 | #include <linux/videodev2.h> |
10 | #include <linux/notifier.h> |
11 | #include <linux/delay.h> |
12 | #include <linux/mutex.h> |
13 | #include <linux/io.h> |
14 | #include <linux/interrupt.h> |
15 | |
16 | #include <media/v4l2-common.h> |
17 | #include <media/v4l2-ioctl.h> |
18 | #include <media/v4l2-ctrls.h> |
19 | #include <media/v4l2-device.h> |
20 | #include <media/videobuf2-dma-sg.h> |
21 | |
22 | #include "tw5864-reg.h" |
23 | |
24 | #define PCI_DEVICE_ID_TECHWELL_5864 0x5864 |
25 | |
26 | #define TW5864_NORMS V4L2_STD_ALL |
27 | |
28 | /* ----------------------------------------------------------- */ |
29 | /* card configuration */ |
30 | |
31 | #define TW5864_INPUTS 4 |
32 | |
33 | /* The TW5864 uses 192 (16x12) detection cells in full screen for motion |
34 | * detection. Each detection cell is composed of 44 pixels and 20 lines for |
35 | * NTSC and 24 lines for PAL. |
36 | */ |
37 | #define MD_CELLS_HOR 16 |
38 | #define MD_CELLS_VERT 12 |
39 | #define MD_CELLS (MD_CELLS_HOR * MD_CELLS_VERT) |
40 | |
41 | #define H264_VLC_BUF_SIZE 0x80000 |
42 | #define H264_MV_BUF_SIZE 0x2000 /* device writes 5396 bytes */ |
43 | #define QP_VALUE 28 |
44 | #define MAX_GOP_SIZE 255 |
45 | #define GOP_SIZE MAX_GOP_SIZE |
46 | |
47 | enum resolution { |
48 | D1 = 1, |
49 | HD1 = 2, /* half d1 - 360x(240|288) */ |
50 | CIF = 3, |
51 | QCIF = 4, |
52 | }; |
53 | |
54 | /* ----------------------------------------------------------- */ |
55 | /* device / file handle status */ |
56 | |
57 | struct tw5864_dev; /* forward delclaration */ |
58 | |
59 | /* buffer for one video/vbi/ts frame */ |
60 | struct tw5864_buf { |
61 | struct vb2_v4l2_buffer vb; |
62 | struct list_head list; |
63 | |
64 | unsigned int size; |
65 | }; |
66 | |
67 | struct tw5864_dma_buf { |
68 | void *addr; |
69 | dma_addr_t dma_addr; |
70 | }; |
71 | |
72 | enum tw5864_vid_std { |
73 | STD_NTSC = 0, /* NTSC (M) */ |
74 | STD_PAL = 1, /* PAL (B, D, G, H, I) */ |
75 | STD_SECAM = 2, /* SECAM */ |
76 | STD_NTSC443 = 3, /* NTSC4.43 */ |
77 | STD_PAL_M = 4, /* PAL (M) */ |
78 | STD_PAL_CN = 5, /* PAL (CN) */ |
79 | STD_PAL_60 = 6, /* PAL 60 */ |
80 | STD_INVALID = 7, |
81 | STD_AUTO = 7, |
82 | }; |
83 | |
84 | struct tw5864_input { |
85 | int nr; /* input number */ |
86 | struct tw5864_dev *root; |
87 | struct mutex lock; /* used for vidq and vdev */ |
88 | spinlock_t slock; /* used for sync between ISR, tasklet & V4L2 API */ |
89 | struct video_device vdev; |
90 | struct v4l2_ctrl_handler hdl; |
91 | struct vb2_queue vidq; |
92 | struct list_head active; |
93 | enum resolution resolution; |
94 | unsigned int width, height; |
95 | unsigned int frame_seqno; |
96 | unsigned int frame_gop_seqno; |
97 | unsigned int h264_idr_pic_id; |
98 | int enabled; |
99 | enum tw5864_vid_std std; |
100 | v4l2_std_id v4l2_std; |
101 | int tail_nb_bits; |
102 | u8 tail; |
103 | u8 *buf_cur_ptr; |
104 | int buf_cur_space_left; |
105 | |
106 | u32 reg_interlacing; |
107 | u32 reg_vlc; |
108 | u32 reg_dsp_codec; |
109 | u32 reg_dsp; |
110 | u32 reg_emu; |
111 | u32 reg_dsp_qp; |
112 | u32 reg_dsp_ref_mvp_lambda; |
113 | u32 reg_dsp_i4x4_weight; |
114 | u32 buf_id; |
115 | |
116 | struct tw5864_buf *vb; |
117 | |
118 | struct v4l2_ctrl *md_threshold_grid_ctrl; |
119 | u16 md_threshold_grid_values[12 * 16]; |
120 | int qp; |
121 | int gop; |
122 | |
123 | /* |
124 | * In (1/MAX_FPS) units. |
125 | * For max FPS (default), set to 1. |
126 | * For 1 FPS, set to e.g. 32. |
127 | */ |
128 | int frame_interval; |
129 | unsigned long new_frame_deadline; |
130 | }; |
131 | |
132 | struct tw5864_h264_frame { |
133 | struct tw5864_dma_buf vlc; |
134 | struct tw5864_dma_buf mv; |
135 | int vlc_len; |
136 | u32 checksum; |
137 | struct tw5864_input *input; |
138 | u64 timestamp; |
139 | unsigned int seqno; |
140 | unsigned int gop_seqno; |
141 | }; |
142 | |
143 | /* global device status */ |
144 | struct tw5864_dev { |
145 | spinlock_t slock; /* used for sync between ISR, tasklet & V4L2 API */ |
146 | struct v4l2_device v4l2_dev; |
147 | struct tw5864_input inputs[TW5864_INPUTS]; |
148 | #define H264_BUF_CNT 4 |
149 | struct tw5864_h264_frame h264_buf[H264_BUF_CNT]; |
150 | int h264_buf_r_index; |
151 | int h264_buf_w_index; |
152 | |
153 | struct tasklet_struct tasklet; |
154 | |
155 | int encoder_busy; |
156 | /* Input number to check next for ready raw picture (in RR fashion) */ |
157 | int next_input; |
158 | |
159 | /* pci i/o */ |
160 | char name[64]; |
161 | struct pci_dev *pci; |
162 | void __iomem *mmio; |
163 | u32 irqmask; |
164 | }; |
165 | |
166 | #define tw_readl(reg) readl(dev->mmio + reg) |
167 | #define tw_mask_readl(reg, mask) \ |
168 | (tw_readl(reg) & (mask)) |
169 | #define tw_mask_shift_readl(reg, mask, shift) \ |
170 | (tw_mask_readl((reg), ((mask) << (shift))) >> (shift)) |
171 | |
172 | #define tw_writel(reg, value) writel((value), dev->mmio + reg) |
173 | #define tw_mask_writel(reg, mask, value) \ |
174 | tw_writel(reg, (tw_readl(reg) & ~(mask)) | ((value) & (mask))) |
175 | #define tw_mask_shift_writel(reg, mask, shift, value) \ |
176 | tw_mask_writel((reg), ((mask) << (shift)), ((value) << (shift))) |
177 | |
178 | #define tw_setl(reg, bit) tw_writel((reg), tw_readl(reg) | (bit)) |
179 | #define tw_clearl(reg, bit) tw_writel((reg), tw_readl(reg) & ~(bit)) |
180 | |
181 | u8 tw5864_indir_readb(struct tw5864_dev *dev, u16 addr); |
182 | #define tw_indir_readb(addr) tw5864_indir_readb(dev, addr) |
183 | void tw5864_indir_writeb(struct tw5864_dev *dev, u16 addr, u8 data); |
184 | #define tw_indir_writeb(addr, data) tw5864_indir_writeb(dev, addr, data) |
185 | |
186 | void tw5864_irqmask_apply(struct tw5864_dev *dev); |
187 | int tw5864_video_init(struct tw5864_dev *dev, int *video_nr); |
188 | void tw5864_video_fini(struct tw5864_dev *dev); |
189 | void (struct tw5864_input *input); |
190 | void (u8 **buf, size_t *space_left, int qp, |
191 | int width, int height); |
192 | void (u8 **buf, size_t *space_left, |
193 | unsigned int idr_pic_id, |
194 | unsigned int frame_gop_seqno, |
195 | int *tail_nb_bits, u8 *tail); |
196 | void tw5864_request_encoded_frame(struct tw5864_input *input); |
197 | |