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5740f4e7 HV |
1 | /* |
2 | * tw68 driver common header file | |
3 | * | |
4 | * Much of this code is derived from the cx88 and sa7134 drivers, which | |
5 | * were in turn derived from the bt87x driver. The original work was by | |
6 | * Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab, | |
7 | * Hans Verkuil, Andy Walls and many others. Their work is gratefully | |
8 | * acknowledged. Full credit goes to them - any problems within this code | |
9 | * are mine. | |
10 | * | |
e15d1c12 HV |
11 | * Copyright (C) 2009 William M. Brack |
12 | * | |
13 | * Refactored and updated to the latest v4l core frameworks: | |
14 | * | |
15 | * Copyright (C) 2014 Hans Verkuil <hverkuil@xs4all.nl> | |
5740f4e7 HV |
16 | * |
17 | * This program is free software; you can redistribute it and/or modify | |
18 | * it under the terms of the GNU General Public License as published by | |
19 | * the Free Software Foundation; either version 2 of the License, or | |
20 | * (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
5740f4e7 HV |
26 | */ |
27 | ||
5740f4e7 | 28 | #include <linux/pci.h> |
5740f4e7 | 29 | #include <linux/videodev2.h> |
5740f4e7 HV |
30 | #include <linux/notifier.h> |
31 | #include <linux/delay.h> | |
32 | #include <linux/mutex.h> | |
e15d1c12 | 33 | #include <linux/io.h> |
5740f4e7 HV |
34 | |
35 | #include <media/v4l2-common.h> | |
36 | #include <media/v4l2-ioctl.h> | |
e15d1c12 | 37 | #include <media/v4l2-ctrls.h> |
5740f4e7 | 38 | #include <media/v4l2-device.h> |
2d700715 | 39 | #include <media/videobuf2-v4l2.h> |
e15d1c12 | 40 | #include <media/videobuf2-dma-sg.h> |
5740f4e7 | 41 | |
5740f4e7 HV |
42 | #include "tw68-reg.h" |
43 | ||
44 | #define UNSET (-1U) | |
45 | ||
e15d1c12 HV |
46 | #define TW68_NORMS ( \ |
47 | V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM | \ | |
48 | V4L2_STD_PAL_M | V4L2_STD_PAL_Nc | V4L2_STD_PAL_60) | |
5740f4e7 HV |
49 | |
50 | #define TW68_VID_INTS (TW68_FFERR | TW68_PABORT | TW68_DMAPERR | \ | |
51 | TW68_FFOF | TW68_DMAPI) | |
52 | /* TW6800 chips have trouble with these, so we don't set them for that chip */ | |
53 | #define TW68_VID_INTSX (TW68_FDMIS | TW68_HLOCK | TW68_VLOCK) | |
54 | ||
55 | #define TW68_I2C_INTS (TW68_SBERR | TW68_SBDONE | TW68_SBERR2 | \ | |
56 | TW68_SBDONE2) | |
57 | ||
e15d1c12 | 58 | enum tw68_decoder_type { |
5740f4e7 HV |
59 | TW6800, |
60 | TW6801, | |
61 | TW6804, | |
62 | TWXXXX, | |
e15d1c12 HV |
63 | }; |
64 | ||
5740f4e7 HV |
65 | /* ----------------------------------------------------------- */ |
66 | /* static data */ | |
67 | ||
68 | struct tw68_tvnorm { | |
69 | char *name; | |
70 | v4l2_std_id id; | |
71 | ||
72 | /* video decoder */ | |
73 | u32 sync_control; | |
74 | u32 luma_control; | |
75 | u32 chroma_ctrl1; | |
76 | u32 chroma_gain; | |
77 | u32 chroma_ctrl2; | |
78 | u32 vgate_misc; | |
79 | ||
80 | /* video scaler */ | |
81 | u32 h_delay; | |
82 | u32 h_delay0; /* for TW6800 */ | |
83 | u32 h_start; | |
84 | u32 h_stop; | |
85 | u32 v_delay; | |
86 | u32 video_v_start; | |
87 | u32 video_v_stop; | |
88 | u32 vbi_v_start_0; | |
89 | u32 vbi_v_stop_0; | |
90 | u32 vbi_v_start_1; | |
91 | ||
92 | /* Techwell specific */ | |
93 | u32 format; | |
94 | }; | |
95 | ||
96 | struct tw68_format { | |
97 | char *name; | |
98 | u32 fourcc; | |
99 | u32 depth; | |
100 | u32 twformat; | |
101 | }; | |
102 | ||
103 | /* ----------------------------------------------------------- */ | |
104 | /* card configuration */ | |
105 | ||
106 | #define TW68_BOARD_NOAUTO UNSET | |
107 | #define TW68_BOARD_UNKNOWN 0 | |
108 | #define TW68_BOARD_GENERIC_6802 1 | |
109 | ||
110 | #define TW68_MAXBOARDS 16 | |
e15d1c12 | 111 | #define TW68_INPUT_MAX 4 |
5740f4e7 HV |
112 | |
113 | /* ----------------------------------------------------------- */ | |
114 | /* device / file handle status */ | |
115 | ||
5740f4e7 HV |
116 | #define BUFFER_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */ |
117 | ||
118 | struct tw68_dev; /* forward delclaration */ | |
119 | ||
5740f4e7 HV |
120 | /* buffer for one video/vbi/ts frame */ |
121 | struct tw68_buf { | |
2d700715 | 122 | struct vb2_v4l2_buffer vb; |
e15d1c12 | 123 | struct list_head list; |
5740f4e7 | 124 | |
e15d1c12 HV |
125 | unsigned int size; |
126 | __le32 *cpu; | |
127 | __le32 *jmp; | |
128 | dma_addr_t dma; | |
5740f4e7 HV |
129 | }; |
130 | ||
131 | struct tw68_fmt { | |
132 | char *name; | |
133 | u32 fourcc; /* v4l2 format id */ | |
134 | int depth; | |
135 | int flags; | |
136 | u32 twformat; | |
137 | }; | |
138 | ||
5740f4e7 HV |
139 | /* global device status */ |
140 | struct tw68_dev { | |
5740f4e7 HV |
141 | struct mutex lock; |
142 | spinlock_t slock; | |
e15d1c12 | 143 | u16 instance; |
5740f4e7 | 144 | struct v4l2_device v4l2_dev; |
5740f4e7 HV |
145 | |
146 | /* various device info */ | |
e15d1c12 HV |
147 | enum tw68_decoder_type vdecoder; |
148 | struct video_device vdev; | |
149 | struct v4l2_ctrl_handler hdl; | |
5740f4e7 HV |
150 | |
151 | /* pci i/o */ | |
e15d1c12 | 152 | char *name; |
5740f4e7 HV |
153 | struct pci_dev *pci; |
154 | unsigned char pci_rev, pci_lat; | |
155 | u32 __iomem *lmmio; | |
156 | u8 __iomem *bmmio; | |
157 | u32 pci_irqmask; | |
158 | /* The irq mask to be used will depend upon the chip type */ | |
159 | u32 board_virqmask; | |
160 | ||
e15d1c12 HV |
161 | /* video capture */ |
162 | const struct tw68_format *fmt; | |
163 | unsigned width, height; | |
164 | unsigned seqnr; | |
165 | unsigned field; | |
166 | struct vb2_queue vidq; | |
167 | struct list_head active; | |
0c3a14c1 | 168 | void *alloc_ctx; |
5740f4e7 HV |
169 | |
170 | /* various v4l controls */ | |
e15d1c12 HV |
171 | const struct tw68_tvnorm *tvnorm; /* video */ |
172 | ||
173 | int input; | |
5740f4e7 HV |
174 | }; |
175 | ||
176 | /* ----------------------------------------------------------- */ | |
177 | ||
178 | #define tw_readl(reg) readl(dev->lmmio + ((reg) >> 2)) | |
179 | #define tw_readb(reg) readb(dev->bmmio + (reg)) | |
180 | #define tw_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2)) | |
181 | #define tw_writeb(reg, value) writeb((value), dev->bmmio + (reg)) | |
182 | ||
183 | #define tw_andorl(reg, mask, value) \ | |
184 | writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\ | |
185 | ((value) & (mask)), dev->lmmio+((reg)>>2)) | |
186 | #define tw_andorb(reg, mask, value) \ | |
187 | writeb((readb(dev->bmmio + (reg)) & ~(mask)) |\ | |
188 | ((value) & (mask)), dev->bmmio+(reg)) | |
189 | #define tw_setl(reg, bit) tw_andorl((reg), (bit), (bit)) | |
190 | #define tw_setb(reg, bit) tw_andorb((reg), (bit), (bit)) | |
191 | #define tw_clearl(reg, bit) \ | |
192 | writel((readl(dev->lmmio + ((reg) >> 2)) & ~(bit)), \ | |
193 | dev->lmmio + ((reg) >> 2)) | |
194 | #define tw_clearb(reg, bit) \ | |
195 | writeb((readb(dev->bmmio+(reg)) & ~(bit)), \ | |
196 | dev->bmmio + (reg)) | |
5740f4e7 HV |
197 | |
198 | #define tw_wait(us) { udelay(us); } | |
199 | ||
5740f4e7 HV |
200 | /* ----------------------------------------------------------- */ |
201 | /* tw68-video.c */ | |
202 | ||
5740f4e7 HV |
203 | void tw68_set_tvnorm_hw(struct tw68_dev *dev); |
204 | ||
205 | int tw68_video_init1(struct tw68_dev *dev); | |
e15d1c12 | 206 | int tw68_video_init2(struct tw68_dev *dev, int video_nr); |
5740f4e7 | 207 | void tw68_irq_video_done(struct tw68_dev *dev, unsigned long status); |
e15d1c12 | 208 | int tw68_video_start_dma(struct tw68_dev *dev, struct tw68_buf *buf); |
5740f4e7 HV |
209 | |
210 | /* ----------------------------------------------------------- */ | |
211 | /* tw68-risc.c */ | |
212 | ||
e15d1c12 | 213 | int tw68_risc_buffer(struct pci_dev *pci, struct tw68_buf *buf, |
5740f4e7 HV |
214 | struct scatterlist *sglist, unsigned int top_offset, |
215 | unsigned int bottom_offset, unsigned int bpl, | |
216 | unsigned int padding, unsigned int lines); |