1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * zoran - Iomega Buz driver
4 *
5 * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
6 *
7 * based on
8 *
9 * zoran.0.0.3 Copyright (C) 1998 Dave Perks <dperks@ibm.net>
10 *
11 * and
12 *
13 * bttv - Bt848 frame grabber driver
14 * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
15 * & Marcus Metzler (mocm@thp.uni-koeln.de)
16 */
17
18 #ifndef _BUZ_H_
19 #define _BUZ_H_
20
21 #include <media/v4l2-device.h>
22 #include <media/v4l2-ctrls.h>
23 #include <media/videobuf2-core.h>
24 #include <media/videobuf2-v4l2.h>
25 #include <media/videobuf2-dma-contig.h>
26
27 #define ZR_NORM_PAL 0
28 #define ZR_NORM_NTSC 1
29 #define ZR_NORM_SECAM 2
30
31 struct zr_buffer {
32 /* common v4l buffer stuff -- must be first */
33 struct vb2_v4l2_buffer vbuf;
34 struct list_head queue;
35 };
36
vb2_to_zr_buffer(struct vb2_buffer * vb)37 static inline struct zr_buffer *vb2_to_zr_buffer(struct vb2_buffer *vb)
38 {
39 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
40
41 return container_of(vbuf, struct zr_buffer, vbuf);
42 }
43
44 #define ZORAN_NAME "ZORAN" /* name of the device */
45
46 #define ZR_DEVNAME(zr) ((zr)->name)
47
48 #define BUZ_MAX_WIDTH (zr->timing->wa)
49 #define BUZ_MAX_HEIGHT (zr->timing->ha)
50 #define BUZ_MIN_WIDTH 32 /* never display less than 32 pixels */
51 #define BUZ_MIN_HEIGHT 24 /* never display less than 24 rows */
52
53 #define BUZ_NUM_STAT_COM 4
54 #define BUZ_MASK_STAT_COM 3
55
56 #define BUZ_MAX_FRAME 256 /* Must be a power of 2 */
57 #define BUZ_MASK_FRAME 255 /* Must be BUZ_MAX_FRAME-1 */
58
59 #define BUZ_MAX_INPUT 16
60
61 #if VIDEO_MAX_FRAME <= 32
62 # define V4L_MAX_FRAME 32
63 #elif VIDEO_MAX_FRAME <= 64
64 # define V4L_MAX_FRAME 64
65 #else
66 # error "Too many video frame buffers to handle"
67 #endif
68 #define V4L_MASK_FRAME (V4L_MAX_FRAME - 1)
69
70 #define MAX_FRAME (BUZ_MAX_FRAME > VIDEO_MAX_FRAME ? BUZ_MAX_FRAME : VIDEO_MAX_FRAME)
71
72 #include "zr36057.h"
73
74 enum card_type {
75 UNKNOWN = -1,
76
77 /* Pinnacle/Miro */
78 DC10_OLD, /* DC30 like */
79 DC10_NEW, /* DC10_PLUS like */
80 DC10_PLUS,
81 DC30,
82 DC30_PLUS,
83
84 /* Linux Media Labs */
85 LML33,
86 LML33R10,
87
88 /* Iomega */
89 BUZ,
90
91 /* AverMedia */
92 AVS6EYES,
93
94 /* total number of cards */
95 NUM_CARDS
96 };
97
98 enum zoran_codec_mode {
99 BUZ_MODE_IDLE, /* nothing going on */
100 BUZ_MODE_MOTION_COMPRESS, /* grabbing frames */
101 BUZ_MODE_MOTION_DECOMPRESS, /* playing frames */
102 BUZ_MODE_STILL_COMPRESS, /* still frame conversion */
103 BUZ_MODE_STILL_DECOMPRESS /* still frame conversion */
104 };
105
106 enum zoran_map_mode {
107 ZORAN_MAP_MODE_NONE,
108 ZORAN_MAP_MODE_RAW,
109 ZORAN_MAP_MODE_JPG_REC,
110 ZORAN_MAP_MODE_JPG_PLAY,
111 };
112
113 enum gpio_type {
114 ZR_GPIO_JPEG_SLEEP = 0,
115 ZR_GPIO_JPEG_RESET,
116 ZR_GPIO_JPEG_FRAME,
117 ZR_GPIO_VID_DIR,
118 ZR_GPIO_VID_EN,
119 ZR_GPIO_VID_RESET,
120 ZR_GPIO_CLK_SEL1,
121 ZR_GPIO_CLK_SEL2,
122 ZR_GPIO_MAX,
123 };
124
125 enum gpcs_type {
126 GPCS_JPEG_RESET = 0,
127 GPCS_JPEG_START,
128 GPCS_MAX,
129 };
130
131 struct zoran_format {
132 char *name;
133 __u32 fourcc;
134 int colorspace;
135 int depth;
136 __u32 flags;
137 __u32 vfespfr;
138 };
139
140 /* flags */
141 #define ZORAN_FORMAT_COMPRESSED BIT(0)
142 #define ZORAN_FORMAT_OVERLAY BIT(1)
143 #define ZORAN_FORMAT_CAPTURE BIT(2)
144 #define ZORAN_FORMAT_PLAYBACK BIT(3)
145
146 /* v4l-capture settings */
147 struct zoran_v4l_settings {
148 int width, height, bytesperline; /* capture size */
149 const struct zoran_format *format; /* capture format */
150 };
151
152 /* jpg-capture/-playback settings */
153 struct zoran_jpg_settings {
154 int decimation; /* this bit is used to set everything to default */
155 int hor_dcm, ver_dcm, tmp_dcm; /* capture decimation settings (tmp_dcm=1 means both fields) */
156 int field_per_buff, odd_even; /* field-settings (odd_even=1 (+tmp_dcm=1) means top-field-first) */
157 int img_x, img_y, img_width, img_height; /* crop settings (subframe capture) */
158 struct v4l2_jpegcompression jpg_comp; /* JPEG-specific capture settings */
159 };
160
161 struct zoran;
162
163 /* zoran_fh contains per-open() settings */
164 struct zoran_fh {
165 struct v4l2_fh fh;
166 struct zoran *zr;
167 };
168
169 struct card_info {
170 enum card_type type;
171 char name[32];
172 const char *i2c_decoder; /* i2c decoder device */
173 const unsigned short *addrs_decoder;
174 const char *i2c_encoder; /* i2c encoder device */
175 const unsigned short *addrs_encoder;
176 u16 video_vfe, video_codec; /* videocodec types */
177 u16 audio_chip; /* audio type */
178
179 int inputs; /* number of video inputs */
180 struct input {
181 int muxsel;
182 char name[32];
183 } input[BUZ_MAX_INPUT];
184
185 v4l2_std_id norms;
186 const struct tvnorm *tvn[3]; /* supported TV norms */
187
188 u32 jpeg_int; /* JPEG interrupt */
189 u32 vsync_int; /* VSYNC interrupt */
190 s8 gpio[ZR_GPIO_MAX];
191 u8 gpcs[GPCS_MAX];
192
193 struct vfe_polarity vfe_pol;
194 u8 gpio_pol[ZR_GPIO_MAX];
195
196 /* is the /GWS line connected? */
197 u8 gws_not_connected;
198
199 /* avs6eyes mux setting */
200 u8 input_mux;
201
202 void (*init)(struct zoran *zr);
203 };
204
205 struct zoran {
206 struct v4l2_device v4l2_dev;
207 struct v4l2_ctrl_handler hdl;
208 struct video_device *video_dev;
209 struct vb2_queue vq;
210
211 struct i2c_adapter i2c_adapter; /* */
212 struct i2c_algo_bit_data i2c_algo; /* */
213 u32 i2cbr;
214
215 struct v4l2_subdev *decoder; /* video decoder sub-device */
216 struct v4l2_subdev *encoder; /* video encoder sub-device */
217
218 struct videocodec *codec; /* video codec */
219 struct videocodec *vfe; /* video front end */
220
221 struct mutex lock; /* file ops serialize lock */
222
223 u8 initialized; /* flag if zoran has been correctly initialized */
224 struct card_info card;
225 const struct tvnorm *timing;
226
227 unsigned short id; /* number of this device */
228 char name[32]; /* name of this device */
229 struct pci_dev *pci_dev; /* PCI device */
230 unsigned char revision; /* revision of zr36057 */
231 unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */
232
233 spinlock_t spinlock; /* Spinlock */
234
235 /* Video for Linux parameters */
236 int input; /* card's norm and input */
237 v4l2_std_id norm;
238
239 /* Current buffer params */
240 unsigned int buffer_size;
241
242 struct zoran_v4l_settings v4l_settings; /* structure with a lot of things to play with */
243
244 /* Buz MJPEG parameters */
245 enum zoran_codec_mode codec_mode; /* status of codec */
246 struct zoran_jpg_settings jpg_settings; /* structure with a lot of things to play with */
247
248 /* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */
249 /* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */
250 /* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */
251 unsigned long jpg_que_head; /* Index where to put next buffer which is queued */
252 unsigned long jpg_dma_head; /* Index of next buffer which goes into stat_com */
253 unsigned long jpg_dma_tail; /* Index of last buffer in stat_com */
254 unsigned long jpg_que_tail; /* Index of last buffer in queue */
255 unsigned long jpg_seq_num; /* count of frames since grab/play started */
256 unsigned long jpg_err_seq; /* last seq_num before error */
257 unsigned long jpg_err_shift;
258 unsigned long jpg_queued_num; /* count of frames queued since grab/play started */
259 unsigned long vbseq;
260
261 /* zr36057's code buffer table */
262 __le32 *stat_com; /* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */
263
264 /* Additional stuff for testing */
265 unsigned int ghost_int;
266 int intr_counter_GIRQ1;
267 int intr_counter_GIRQ0;
268 int intr_counter_cod_rep_irq;
269 int intr_counter_jpeg_rep_irq;
270 int field_counter;
271 int irq1_in;
272 int irq1_out;
273 int jpeg_in;
274 int jpeg_out;
275 int JPEG_0;
276 int JPEG_1;
277 int end_event_missed;
278 int jpeg_missed;
279 int jpeg_error;
280 int num_errors;
281 int jpeg_max_missed;
282 int jpeg_min_missed;
283 unsigned int prepared;
284 unsigned int queued;
285
286 u32 last_isr;
287 unsigned long frame_num;
288 int running;
289 int buf_in_reserve;
290
291 dma_addr_t p_sc;
292 __le32 *stat_comb;
293 dma_addr_t p_scb;
294 enum zoran_map_mode map_mode;
295 struct list_head queued_bufs;
296 spinlock_t queued_bufs_lock; /* Protects queued_bufs */
297 struct zr_buffer *inuse[BUZ_NUM_STAT_COM * 2];
298 };
299
to_zoran(struct v4l2_device * v4l2_dev)300 static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev)
301 {
302 return container_of(v4l2_dev, struct zoran, v4l2_dev);
303 }
304
305 /* There was something called _ALPHA_BUZ that used the PCI address instead of
306 * the kernel iomapped address for btread/btwrite. */
307 #define btwrite(dat, adr) writel((dat), zr->zr36057_mem + (adr))
308 #define btread(adr) readl(zr->zr36057_mem + (adr))
309
310 #define btand(dat, adr) btwrite((dat) & btread(adr), adr)
311 #define btor(dat, adr) btwrite((dat) | btread(adr), adr)
312 #define btaor(dat, mask, adr) btwrite((dat) | ((mask) & btread(adr)), adr)
313
314 #endif
315
316 int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq);
317 void zoran_queue_exit(struct zoran *zr);
318 int zr_set_buf(struct zoran *zr);
319