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1 /*
2  * Copyright (C) 2005-2006 Micronas USA Inc.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License (Version 2) as
6  * published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program; if not, write to the Free Software Foundation,
15  * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
16  */
17 
18 /*
19  * This is the private include file for the go7007 driver.  It should not
20  * be included by anybody but the driver itself, and especially not by
21  * user-space applications.
22  */
23 
24 #include <media/v4l2-device.h>
25 #include <media/v4l2-ctrls.h>
26 #include <media/v4l2-fh.h>
27 #include <media/videobuf2-core.h>
28 
29 struct go7007;
30 
31 /* IDs to activate board-specific support code */
32 #define GO7007_BOARDID_MATRIX_II	0
33 #define GO7007_BOARDID_MATRIX_RELOAD	1
34 #define GO7007_BOARDID_STAR_TREK	2
35 #define GO7007_BOARDID_PCI_VOYAGER	3
36 #define GO7007_BOARDID_XMEN		4
37 #define GO7007_BOARDID_XMEN_II		5
38 #define GO7007_BOARDID_XMEN_III		6
39 #define GO7007_BOARDID_MATRIX_REV	7
40 #define GO7007_BOARDID_PX_M402U		8
41 #define GO7007_BOARDID_PX_TV402U	9
42 #define GO7007_BOARDID_LIFEVIEW_LR192	10 /* TV Walker Ultra */
43 #define GO7007_BOARDID_ENDURA		11
44 #define GO7007_BOARDID_ADLINK_MPG24	12
45 #define GO7007_BOARDID_SENSORAY_2250	13 /* Sensoray 2250/2251 */
46 #define GO7007_BOARDID_ADS_USBAV_709    14
47 
48 /* Various characteristics of each board */
49 #define GO7007_BOARD_HAS_AUDIO		(1<<0)
50 #define GO7007_BOARD_USE_ONBOARD_I2C	(1<<1)
51 #define GO7007_BOARD_HAS_TUNER		(1<<2)
52 
53 /* Characteristics of sensor devices */
54 #define GO7007_SENSOR_VALID_POLAR	(1<<0)
55 #define GO7007_SENSOR_HREF_POLAR	(1<<1)
56 #define GO7007_SENSOR_VREF_POLAR	(1<<2)
57 #define GO7007_SENSOR_FIELD_ID_POLAR	(1<<3)
58 #define GO7007_SENSOR_BIT_WIDTH		(1<<4)
59 #define GO7007_SENSOR_VALID_ENABLE	(1<<5)
60 #define GO7007_SENSOR_656		(1<<6)
61 #define GO7007_SENSOR_CONFIG_MASK	0x7f
62 #define GO7007_SENSOR_TV		(1<<7)
63 #define GO7007_SENSOR_VBI		(1<<8)
64 #define GO7007_SENSOR_SCALING		(1<<9)
65 #define GO7007_SENSOR_SAA7115		(1<<10)
66 
67 /* Characteristics of audio sensor devices */
68 #define GO7007_AUDIO_I2S_MODE_1		(1)
69 #define GO7007_AUDIO_I2S_MODE_2		(2)
70 #define GO7007_AUDIO_I2S_MODE_3		(3)
71 #define GO7007_AUDIO_BCLK_POLAR		(1<<2)
72 #define GO7007_AUDIO_WORD_14		(14<<4)
73 #define GO7007_AUDIO_WORD_16		(16<<4)
74 #define GO7007_AUDIO_ONE_CHANNEL	(1<<11)
75 #define GO7007_AUDIO_I2S_MASTER		(1<<16)
76 #define GO7007_AUDIO_OKI_MODE		(1<<17)
77 
78 struct go7007_board_info {
79 	unsigned int flags;
80 	int hpi_buffer_cap;
81 	unsigned int sensor_flags;
82 	int sensor_width;
83 	int sensor_height;
84 	int sensor_framerate;
85 	int sensor_h_offset;
86 	int sensor_v_offset;
87 	unsigned int audio_flags;
88 	int audio_rate;
89 	int audio_bclk_div;
90 	int audio_main_div;
91 	int num_i2c_devs;
92 	struct go_i2c {
93 		const char *type;
94 		unsigned int is_video:1;
95 		unsigned int is_audio:1;
96 		int addr;
97 		u32 flags;
98 	} i2c_devs[5];
99 	int num_inputs;
100 	struct {
101 		int video_input;
102 		int audio_index;
103 		char *name;
104 	} inputs[4];
105 	int video_config;
106 	int num_aud_inputs;
107 	struct {
108 		int audio_input;
109 		char *name;
110 	} aud_inputs[3];
111 };
112 
113 struct go7007_hpi_ops {
114 	int (*interface_reset)(struct go7007 *go);
115 	int (*write_interrupt)(struct go7007 *go, int addr, int data);
116 	int (*read_interrupt)(struct go7007 *go);
117 	int (*stream_start)(struct go7007 *go);
118 	int (*stream_stop)(struct go7007 *go);
119 	int (*send_firmware)(struct go7007 *go, u8 *data, int len);
120 	int (*send_command)(struct go7007 *go, unsigned int cmd, void *arg);
121 	void (*release)(struct go7007 *go);
122 };
123 
124 /* The video buffer size must be a multiple of PAGE_SIZE */
125 #define	GO7007_BUF_PAGES	(128 * 1024 / PAGE_SIZE)
126 #define	GO7007_BUF_SIZE		(GO7007_BUF_PAGES << PAGE_SHIFT)
127 
128 struct go7007_buffer {
129 	struct vb2_buffer vb;
130 	struct list_head list;
131 	unsigned int frame_offset;
132 	u32 modet_active;
133 };
134 
135 #define GO7007_RATIO_1_1	0
136 #define GO7007_RATIO_4_3	1
137 #define GO7007_RATIO_16_9	2
138 
139 enum go7007_parser_state {
140 	STATE_DATA,
141 	STATE_00,
142 	STATE_00_00,
143 	STATE_00_00_01,
144 	STATE_FF,
145 	STATE_VBI_LEN_A,
146 	STATE_VBI_LEN_B,
147 	STATE_MODET_MAP,
148 	STATE_UNPARSED,
149 };
150 
151 struct go7007 {
152 	struct device *dev;
153 	u8 bus_info[32];
154 	const struct go7007_board_info *board_info;
155 	unsigned int board_id;
156 	int tuner_type;
157 	int channel_number; /* for multi-channel boards like Adlink PCI-MPG24 */
158 	char name[64];
159 	struct video_device vdev;
160 	void *boot_fw;
161 	unsigned boot_fw_len;
162 	struct v4l2_device v4l2_dev;
163 	struct v4l2_ctrl_handler hdl;
164 	struct v4l2_ctrl *mpeg_video_encoding;
165 	struct v4l2_ctrl *mpeg_video_gop_size;
166 	struct v4l2_ctrl *mpeg_video_gop_closure;
167 	struct v4l2_ctrl *mpeg_video_bitrate;
168 	struct v4l2_ctrl *mpeg_video_aspect_ratio;
169 	struct v4l2_ctrl *mpeg_video_b_frames;
170 	struct v4l2_ctrl *mpeg_video_rep_seqheader;
171 	enum { STATUS_INIT, STATUS_ONLINE, STATUS_SHUTDOWN } status;
172 	spinlock_t spinlock;
173 	struct mutex hw_lock;
174 	struct mutex serialize_lock;
175 	int audio_enabled;
176 	struct v4l2_subdev *sd_video;
177 	struct v4l2_subdev *sd_audio;
178 	u8 usb_buf[16];
179 
180 	/* Video input */
181 	int input;
182 	int aud_input;
183 	enum { GO7007_STD_NTSC, GO7007_STD_PAL, GO7007_STD_OTHER } standard;
184 	v4l2_std_id std;
185 	int sensor_framerate;
186 	int width;
187 	int height;
188 	int encoder_h_offset;
189 	int encoder_v_offset;
190 	unsigned int encoder_h_halve:1;
191 	unsigned int encoder_v_halve:1;
192 	unsigned int encoder_subsample:1;
193 
194 	/* Encoder config */
195 	u32 format;
196 	int bitrate;
197 	int fps_scale;
198 	int pali;
199 	int aspect_ratio;
200 	int gop_size;
201 	unsigned int ipb:1;
202 	unsigned int closed_gop:1;
203 	unsigned int repeat_seqhead:1;
204 	unsigned int seq_header_enable:1;
205 	unsigned int gop_header_enable:1;
206 	unsigned int dvd_mode:1;
207 	unsigned int interlace_coding:1;
208 
209 	/* Motion detection */
210 	unsigned int modet_enable:1;
211 	struct {
212 		unsigned int enable:1;
213 		int pixel_threshold;
214 		int motion_threshold;
215 		int mb_threshold;
216 	} modet[4];
217 	unsigned char modet_map[1624];
218 	unsigned char active_map[216];
219 
220 	/* Video streaming */
221 	struct mutex queue_lock;
222 	struct vb2_queue vidq;
223 	enum go7007_parser_state state;
224 	int parse_length;
225 	u16 modet_word;
226 	int seen_frame;
227 	u32 next_seq;
228 	struct list_head vidq_active;
229 	wait_queue_head_t frame_waitq;
230 	struct go7007_buffer *active_buf;
231 
232 	/* Audio streaming */
233 	void (*audio_deliver)(struct go7007 *go, u8 *buf, int length);
234 	void *snd_context;
235 
236 	/* I2C */
237 	int i2c_adapter_online;
238 	struct i2c_adapter i2c_adapter;
239 
240 	/* HPI driver */
241 	struct go7007_hpi_ops *hpi_ops;
242 	void *hpi_context;
243 	int interrupt_available;
244 	wait_queue_head_t interrupt_waitq;
245 	unsigned short interrupt_value;
246 	unsigned short interrupt_data;
247 };
248 
to_go7007(struct v4l2_device * v4l2_dev)249 static inline struct go7007 *to_go7007(struct v4l2_device *v4l2_dev)
250 {
251 	return container_of(v4l2_dev, struct go7007, v4l2_dev);
252 }
253 
254 /* All of these must be called with the hpi_lock mutex held! */
255 #define go7007_interface_reset(go) \
256 			((go)->hpi_ops->interface_reset(go))
257 #define	go7007_write_interrupt(go, x, y) \
258 			((go)->hpi_ops->write_interrupt)((go), (x), (y))
259 #define go7007_stream_start(go) \
260 			((go)->hpi_ops->stream_start(go))
261 #define go7007_stream_stop(go) \
262 			((go)->hpi_ops->stream_stop(go))
263 #define	go7007_send_firmware(go, x, y) \
264 			((go)->hpi_ops->send_firmware)((go), (x), (y))
265 #define go7007_write_addr(go, x, y) \
266 			((go)->hpi_ops->write_interrupt)((go), (x)|0x8000, (y))
267 
268 /* go7007-driver.c */
269 int go7007_read_addr(struct go7007 *go, u16 addr, u16 *data);
270 int go7007_read_interrupt(struct go7007 *go, u16 *value, u16 *data);
271 int go7007_boot_encoder(struct go7007 *go, int init_i2c);
272 int go7007_reset_encoder(struct go7007 *go);
273 int go7007_register_encoder(struct go7007 *go, unsigned num_i2c_devs);
274 int go7007_start_encoder(struct go7007 *go);
275 void go7007_parse_video_stream(struct go7007 *go, u8 *buf, int length);
276 struct go7007 *go7007_alloc(const struct go7007_board_info *board,
277 					struct device *dev);
278 void go7007_update_board(struct go7007 *go);
279 
280 /* go7007-fw.c */
281 int go7007_construct_fw_image(struct go7007 *go, u8 **fw, int *fwlen);
282 
283 /* go7007-i2c.c */
284 int go7007_i2c_init(struct go7007 *go);
285 int go7007_i2c_remove(struct go7007 *go);
286 
287 /* go7007-v4l2.c */
288 int go7007_v4l2_init(struct go7007 *go);
289 int go7007_v4l2_ctrl_init(struct go7007 *go);
290 void go7007_v4l2_remove(struct go7007 *go);
291 
292 /* snd-go7007.c */
293 int go7007_snd_init(struct go7007 *go);
294 int go7007_snd_remove(struct go7007 *go);
295