xref: /linux/drivers/media/pci/zoran/zoran.h (revision 0ea5c948cb64bab5bc7a5516774eb8536f05aa0d)
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 <linux/debugfs.h>
22 #include <linux/pci.h>
23 #include <linux/i2c-algo-bit.h>
24 #include <media/v4l2-device.h>
25 #include <media/v4l2-ctrls.h>
26 #include <media/videobuf2-core.h>
27 #include <media/videobuf2-v4l2.h>
28 #include <media/videobuf2-dma-contig.h>
29 
30 #define ZR_NORM_PAL 0
31 #define ZR_NORM_NTSC 1
32 #define ZR_NORM_SECAM 2
33 
34 struct zr_buffer {
35 	/* common v4l buffer stuff -- must be first */
36 	struct vb2_v4l2_buffer          vbuf;
37 	struct list_head                queue;
38 };
39 
vb2_to_zr_buffer(struct vb2_buffer * vb)40 static inline struct zr_buffer *vb2_to_zr_buffer(struct vb2_buffer *vb)
41 {
42 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
43 
44 	return container_of(vbuf, struct zr_buffer, vbuf);
45 }
46 
47 #define ZORAN_NAME    "ZORAN"	/* name of the device */
48 
49 #define ZR_DEVNAME(zr) ((zr)->name)
50 
51 #define   BUZ_MAX_WIDTH   (zr->timing->wa)
52 #define   BUZ_MAX_HEIGHT  (zr->timing->ha)
53 #define   BUZ_MIN_WIDTH    32	/* never display less than 32 pixels */
54 #define   BUZ_MIN_HEIGHT   24	/* never display less than 24 rows */
55 
56 #define BUZ_NUM_STAT_COM    4
57 #define BUZ_MASK_STAT_COM   3
58 
59 #define BUZ_MAX_INPUT       16
60 
61 #include "zr36057.h"
62 
63 enum card_type {
64 	UNKNOWN = -1,
65 
66 	/* Pinnacle/Miro */
67 	DC10_OLD,		/* DC30 like */
68 	DC10_NEW,		/* DC10_PLUS like */
69 	DC10_PLUS,
70 	DC30,
71 	DC30_PLUS,
72 
73 	/* Linux Media Labs */
74 	LML33,
75 	LML33R10,
76 
77 	/* Iomega */
78 	BUZ,
79 
80 	/* AverMedia */
81 	AVS6EYES,
82 
83 	/* total number of cards */
84 	NUM_CARDS
85 };
86 
87 enum zoran_codec_mode {
88 	BUZ_MODE_IDLE,		/* nothing going on */
89 	BUZ_MODE_MOTION_COMPRESS,	/* grabbing frames */
90 	BUZ_MODE_MOTION_DECOMPRESS,	/* playing frames */
91 	BUZ_MODE_STILL_COMPRESS,	/* still frame conversion */
92 	BUZ_MODE_STILL_DECOMPRESS	/* still frame conversion */
93 };
94 
95 enum zoran_map_mode {
96 	ZORAN_MAP_MODE_NONE,
97 	ZORAN_MAP_MODE_RAW,
98 	ZORAN_MAP_MODE_JPG_REC,
99 	ZORAN_MAP_MODE_JPG_PLAY,
100 };
101 
102 enum gpio_type {
103 	ZR_GPIO_JPEG_SLEEP = 0,
104 	ZR_GPIO_JPEG_RESET,
105 	ZR_GPIO_JPEG_FRAME,
106 	ZR_GPIO_VID_DIR,
107 	ZR_GPIO_VID_EN,
108 	ZR_GPIO_VID_RESET,
109 	ZR_GPIO_CLK_SEL1,
110 	ZR_GPIO_CLK_SEL2,
111 	ZR_GPIO_MAX,
112 };
113 
114 enum gpcs_type {
115 	GPCS_JPEG_RESET = 0,
116 	GPCS_JPEG_START,
117 	GPCS_MAX,
118 };
119 
120 struct zoran_format {
121 	char *name;
122 	__u32 fourcc;
123 	int colorspace;
124 	int depth;
125 	__u32 flags;
126 	__u32 vfespfr;
127 };
128 
129 /* flags */
130 #define ZORAN_FORMAT_COMPRESSED BIT(0)
131 #define ZORAN_FORMAT_OVERLAY BIT(1)
132 #define ZORAN_FORMAT_CAPTURE BIT(2)
133 #define ZORAN_FORMAT_PLAYBACK BIT(3)
134 
135 /* v4l-capture settings */
136 struct zoran_v4l_settings {
137 	int width, height, bytesperline;	/* capture size */
138 	const struct zoran_format *format;	/* capture format */
139 };
140 
141 /* jpg-capture/-playback settings */
142 struct zoran_jpg_settings {
143 	/* this bit is used to set everything to default */
144 	int decimation;
145 	/* capture decimation settings (tmp_dcm=1 means both fields) */
146 	int hor_dcm, ver_dcm, tmp_dcm;
147 	/* field-settings (odd_even=1 (+tmp_dcm=1) means top-field-first) */
148 	int field_per_buff, odd_even;
149 	/* crop settings (subframe capture) */
150 	int img_x, img_y, img_width, img_height;
151 	/* JPEG-specific capture settings */
152 	struct v4l2_jpegcompression jpg_comp;
153 };
154 
155 struct zoran;
156 
157 /* zoran_fh contains per-open() settings */
158 struct zoran_fh {
159 	struct v4l2_fh fh;
160 	struct zoran *zr;
161 };
162 
163 struct card_info {
164 	enum card_type type;
165 	char name[32];
166 	const char *i2c_decoder;	/* i2c decoder device */
167 	const unsigned short *addrs_decoder;
168 	const char *i2c_encoder;	/* i2c encoder device */
169 	const unsigned short *addrs_encoder;
170 	u16 video_vfe, video_codec;			/* videocodec types */
171 	u16 audio_chip;					/* audio type */
172 
173 	int inputs;		/* number of video inputs */
174 	struct input {
175 		int muxsel;
176 		char name[32];
177 	} input[BUZ_MAX_INPUT];
178 
179 	v4l2_std_id norms;
180 	const struct tvnorm *tvn[3];	/* supported TV norms */
181 
182 	u32 jpeg_int;		/* JPEG interrupt */
183 	u32 vsync_int;		/* VSYNC interrupt */
184 	s8 gpio[ZR_GPIO_MAX];
185 	u8 gpcs[GPCS_MAX];
186 
187 	struct vfe_polarity vfe_pol;
188 	u8 gpio_pol[ZR_GPIO_MAX];
189 
190 	/* is the /GWS line connected? */
191 	u8 gws_not_connected;
192 
193 	/* avs6eyes mux setting */
194 	u8 input_mux;
195 
196 	void (*init)(struct zoran *zr);
197 };
198 
199 struct zoran {
200 	struct v4l2_device v4l2_dev;
201 	struct v4l2_ctrl_handler hdl;
202 	struct video_device *video_dev;
203 	struct vb2_queue vq;
204 
205 	struct i2c_adapter i2c_adapter;	/* */
206 	struct i2c_algo_bit_data i2c_algo;	/* */
207 	u32 i2cbr;
208 
209 	struct v4l2_subdev *decoder;	/* video decoder sub-device */
210 	struct v4l2_subdev *encoder;	/* video encoder sub-device */
211 
212 	struct videocodec *codec;	/* video codec */
213 	struct videocodec *vfe;	/* video front end */
214 
215 	struct mutex lock;	/* file ops serialize lock */
216 
217 	u8 initialized;		/* flag if zoran has been correctly initialized */
218 	struct card_info card;
219 	const struct tvnorm *timing;
220 
221 	unsigned short id;	/* number of this device */
222 	char name[40];		/* name of this device */
223 	struct pci_dev *pci_dev;	/* PCI device */
224 	unsigned char revision;	/* revision of zr36057 */
225 	unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */
226 
227 	spinlock_t spinlock;	/* Spinlock */
228 
229 	/* Video for Linux parameters */
230 	int input;	/* card's norm and input */
231 	v4l2_std_id norm;
232 
233 	/* Current buffer params */
234 	unsigned int buffer_size;
235 
236 	struct zoran_v4l_settings v4l_settings;	/* structure with a lot of things to play with */
237 
238 	/* Buz MJPEG parameters */
239 	enum zoran_codec_mode codec_mode;	/* status of codec */
240 	struct zoran_jpg_settings jpg_settings;	/* structure with a lot of things to play with */
241 
242 	/* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */
243 	/* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */
244 	/* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */
245 	unsigned long jpg_que_head;	/* Index where to put next buffer which is queued */
246 	unsigned long jpg_dma_head;	/* Index of next buffer which goes into stat_com */
247 	unsigned long jpg_dma_tail;	/* Index of last buffer in stat_com */
248 	unsigned long jpg_que_tail;	/* Index of last buffer in queue */
249 	unsigned long jpg_seq_num;	/* count of frames since grab/play started */
250 	unsigned long jpg_err_seq;	/* last seq_num before error */
251 	unsigned long jpg_err_shift;
252 	unsigned long jpg_queued_num;	/* count of frames queued since grab/play started */
253 	unsigned long vbseq;
254 
255 	/* zr36057's code buffer table */
256 	/* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */
257 	__le32 *stat_com;
258 
259 	/* Additional stuff for testing */
260 	unsigned int ghost_int;
261 	int intr_counter_GIRQ1;
262 	int intr_counter_GIRQ0;
263 	int intr_counter_cod_rep_irq;
264 	int intr_counter_jpeg_rep_irq;
265 	int field_counter;
266 	int irq1_in;
267 	int irq1_out;
268 	int jpeg_in;
269 	int jpeg_out;
270 	int JPEG_0;
271 	int JPEG_1;
272 	int end_event_missed;
273 	int jpeg_missed;
274 	int jpeg_error;
275 	int num_errors;
276 	int jpeg_max_missed;
277 	int jpeg_min_missed;
278 	unsigned int prepared;
279 	unsigned int queued;
280 
281 	u32 last_isr;
282 	unsigned long frame_num;
283 	int running;
284 	int buf_in_reserve;
285 
286 	dma_addr_t p_sc;
287 	__le32 *stat_comb;
288 	dma_addr_t p_scb;
289 	enum zoran_map_mode map_mode;
290 	struct list_head queued_bufs;
291 	spinlock_t queued_bufs_lock; /* Protects queued_bufs */
292 	struct zr_buffer *inuse[BUZ_NUM_STAT_COM * 2];
293 	struct dentry *dbgfs_dir;
294 };
295 
to_zoran(struct v4l2_device * v4l2_dev)296 static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev)
297 {
298 	return container_of(v4l2_dev, struct zoran, v4l2_dev);
299 }
300 
301 /*
302  * There was something called _ALPHA_BUZ that used the PCI address instead of
303  * the kernel iomapped address for btread/btwrite.
304  */
305 #define btwrite(dat, adr)    writel((dat), zr->zr36057_mem + (adr))
306 #define btread(adr)         readl(zr->zr36057_mem + (adr))
307 
308 #define btand(dat, adr)      btwrite((dat) & btread(adr), (adr))
309 #define btor(dat, adr)       btwrite((dat) | btread(adr), (adr))
310 #define btaor(dat, mask, adr) btwrite((dat) | ((mask) & btread(adr)), (adr))
311 
312 #endif
313 
314 /*
315  * Debugging macros
316  */
317 #define zrdev_dbg(zr, format, args...) \
318 	pci_dbg((zr)->pci_dev, format, ##args) \
319 
320 #define zrdev_err(zr, format, args...) \
321 	pci_err((zr)->pci_dev, format, ##args) \
322 
323 #define zrdev_info(zr, format, args...) \
324 	pci_info((zr)->pci_dev, format, ##args) \
325 
326 int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq, int dir);
327 void zoran_queue_exit(struct zoran *zr);
328 int zr_set_buf(struct zoran *zr);
329