1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Driver for the Auvitek AU0828 USB bridge |
4 | * |
5 | * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org> |
6 | */ |
7 | |
8 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
9 | |
10 | #include <linux/bitops.h> |
11 | #include <linux/usb.h> |
12 | #include <linux/i2c.h> |
13 | #include <linux/i2c-algo-bit.h> |
14 | #include <media/tveeprom.h> |
15 | |
16 | /* Analog */ |
17 | #include <linux/videodev2.h> |
18 | #include <media/videobuf2-v4l2.h> |
19 | #include <media/videobuf2-vmalloc.h> |
20 | #include <media/v4l2-device.h> |
21 | #include <media/v4l2-ctrls.h> |
22 | #include <media/v4l2-fh.h> |
23 | #include <media/media-device.h> |
24 | #include <media/media-dev-allocator.h> |
25 | |
26 | /* DVB */ |
27 | #include <media/demux.h> |
28 | #include <media/dmxdev.h> |
29 | #include <media/dvb_demux.h> |
30 | #include <media/dvb_frontend.h> |
31 | #include <media/dvb_net.h> |
32 | #include <media/dvbdev.h> |
33 | |
34 | #include "au0828-reg.h" |
35 | #include "au0828-cards.h" |
36 | |
37 | #define URB_COUNT 16 |
38 | #define URB_BUFSIZE (0xe522) |
39 | |
40 | /* Analog constants */ |
41 | #define NTSC_STD_W 720 |
42 | #define NTSC_STD_H 480 |
43 | |
44 | #define AU0828_INTERLACED_DEFAULT 1 |
45 | |
46 | /* Definition for AU0828 USB transfer */ |
47 | #define AU0828_MAX_ISO_BUFS 12 /* maybe resize this value in the future */ |
48 | #define AU0828_ISO_PACKETS_PER_URB 128 |
49 | |
50 | #define AU0828_MIN_BUF 4 |
51 | #define AU0828_DEF_BUF 8 |
52 | |
53 | #define AU0828_MAX_INPUT 4 |
54 | |
55 | /* au0828 resource types (used for res_get/res_lock etc */ |
56 | #define AU0828_RESOURCE_VIDEO 0x01 |
57 | #define AU0828_RESOURCE_VBI 0x02 |
58 | |
59 | enum au0828_itype { |
60 | AU0828_VMUX_UNDEFINED = 0, |
61 | AU0828_VMUX_COMPOSITE, |
62 | AU0828_VMUX_SVIDEO, |
63 | AU0828_VMUX_CABLE, |
64 | AU0828_VMUX_TELEVISION, |
65 | AU0828_VMUX_DVB, |
66 | }; |
67 | |
68 | struct au0828_input { |
69 | enum au0828_itype type; |
70 | unsigned int vmux; |
71 | unsigned int amux; |
72 | void (*audio_setup) (void *priv, int enable); |
73 | }; |
74 | |
75 | struct au0828_board { |
76 | char *name; |
77 | unsigned int tuner_type; |
78 | unsigned char tuner_addr; |
79 | unsigned char i2c_clk_divider; |
80 | unsigned char has_ir_i2c:1; |
81 | unsigned char has_analog:1; |
82 | struct au0828_input input[AU0828_MAX_INPUT]; |
83 | }; |
84 | |
85 | struct au0828_dvb { |
86 | struct mutex lock; |
87 | struct dvb_adapter adapter; |
88 | struct dvb_frontend *frontend; |
89 | struct dvb_demux demux; |
90 | struct dmxdev dmxdev; |
91 | struct dmx_frontend fe_hw; |
92 | struct dmx_frontend fe_mem; |
93 | struct dvb_net net; |
94 | int feeding; |
95 | int start_count; |
96 | int stop_count; |
97 | |
98 | int (*set_frontend)(struct dvb_frontend *fe); |
99 | }; |
100 | |
101 | enum au0828_stream_state { |
102 | STREAM_OFF, |
103 | STREAM_INTERRUPT, |
104 | STREAM_ON |
105 | }; |
106 | |
107 | #define AUVI_INPUT(nr) (dev->board.input[nr]) |
108 | |
109 | /* device state */ |
110 | enum au0828_dev_state { |
111 | DEV_INITIALIZED = 0, |
112 | DEV_DISCONNECTED = 1, |
113 | DEV_MISCONFIGURED = 2 |
114 | }; |
115 | |
116 | struct au0828_dev; |
117 | |
118 | struct au0828_usb_isoc_ctl { |
119 | /* max packet size of isoc transaction */ |
120 | int max_pkt_size; |
121 | |
122 | /* number of allocated urbs */ |
123 | int num_bufs; |
124 | |
125 | /* urb for isoc transfers */ |
126 | struct urb **urb; |
127 | |
128 | /* transfer buffers for isoc transfer */ |
129 | char **transfer_buffer; |
130 | |
131 | /* Last buffer command and region */ |
132 | u8 cmd; |
133 | int pos, size, pktsize; |
134 | |
135 | /* Last field: ODD or EVEN? */ |
136 | int field; |
137 | |
138 | /* Stores incomplete commands */ |
139 | u32 tmp_buf; |
140 | int tmp_buf_len; |
141 | |
142 | /* Stores already requested buffers */ |
143 | struct au0828_buffer *buf; |
144 | struct au0828_buffer *vbi_buf; |
145 | |
146 | /* Stores the number of received fields */ |
147 | int nfields; |
148 | |
149 | /* isoc urb callback */ |
150 | int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb); |
151 | |
152 | }; |
153 | |
154 | /* buffer for one video frame */ |
155 | struct au0828_buffer { |
156 | /* common v4l buffer stuff -- must be first */ |
157 | struct vb2_v4l2_buffer vb; |
158 | struct list_head list; |
159 | |
160 | void *mem; |
161 | unsigned long length; |
162 | int top_field; |
163 | /* pointer to vmalloc memory address in vb */ |
164 | char *vb_buf; |
165 | }; |
166 | |
167 | struct au0828_dmaqueue { |
168 | struct list_head active; |
169 | /* Counters to control buffer fill */ |
170 | int pos; |
171 | }; |
172 | |
173 | struct au0828_dev { |
174 | struct mutex mutex; |
175 | struct usb_device *usbdev; |
176 | int boardnr; |
177 | struct au0828_board board; |
178 | u8 ctrlmsg[64]; |
179 | |
180 | /* I2C */ |
181 | struct i2c_adapter i2c_adap; |
182 | struct i2c_algorithm i2c_algo; |
183 | struct i2c_client i2c_client; |
184 | u32 i2c_rc; |
185 | |
186 | /* Digital */ |
187 | struct au0828_dvb dvb; |
188 | struct work_struct restart_streaming; |
189 | struct timer_list bulk_timeout; |
190 | int bulk_timeout_running; |
191 | |
192 | #ifdef CONFIG_VIDEO_AU0828_V4L2 |
193 | /* Analog */ |
194 | struct v4l2_device v4l2_dev; |
195 | struct v4l2_ctrl_handler v4l2_ctrl_hdl; |
196 | #endif |
197 | #ifdef CONFIG_VIDEO_AU0828_RC |
198 | struct au0828_rc *ir; |
199 | #endif |
200 | |
201 | struct video_device vdev; |
202 | struct video_device vbi_dev; |
203 | |
204 | /* Videobuf2 */ |
205 | struct vb2_queue vb_vidq; |
206 | struct vb2_queue vb_vbiq; |
207 | struct mutex vb_queue_lock; |
208 | struct mutex vb_vbi_queue_lock; |
209 | |
210 | unsigned int frame_count; |
211 | unsigned int vbi_frame_count; |
212 | |
213 | struct timer_list vid_timeout; |
214 | int vid_timeout_running; |
215 | struct timer_list vbi_timeout; |
216 | int vbi_timeout_running; |
217 | |
218 | int users; |
219 | int streaming_users; |
220 | |
221 | int width; |
222 | int height; |
223 | int vbi_width; |
224 | int vbi_height; |
225 | u32 vbi_read; |
226 | v4l2_std_id std; |
227 | u32 field_size; |
228 | u32 frame_size; |
229 | u32 bytesperline; |
230 | int type; |
231 | u8 ctrl_ainput; |
232 | __u8 isoc_in_endpointaddr; |
233 | u8 isoc_init_ok; |
234 | int greenscreen_detected; |
235 | int ctrl_freq; |
236 | int input_type; |
237 | int std_set_in_tuner_core; |
238 | unsigned int ctrl_input; |
239 | long unsigned int dev_state; /* defined at enum au0828_dev_state */; |
240 | enum au0828_stream_state stream_state; |
241 | wait_queue_head_t open; |
242 | |
243 | struct mutex lock; |
244 | |
245 | /* Isoc control struct */ |
246 | struct au0828_dmaqueue vidq; |
247 | struct au0828_dmaqueue vbiq; |
248 | struct au0828_usb_isoc_ctl isoc_ctl; |
249 | spinlock_t slock; |
250 | |
251 | /* usb transfer */ |
252 | int alt; /* alternate */ |
253 | int max_pkt_size; /* max packet size of isoc transaction */ |
254 | int num_alt; /* Number of alternative settings */ |
255 | unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */ |
256 | struct urb *urb[AU0828_MAX_ISO_BUFS]; /* urb for isoc transfers */ |
257 | char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc |
258 | transfer */ |
259 | |
260 | /* DVB USB / URB Related */ |
261 | bool urb_streaming, need_urb_start; |
262 | struct urb *urbs[URB_COUNT]; |
263 | |
264 | /* Preallocated transfer digital transfer buffers */ |
265 | |
266 | char *dig_transfer_buffer[URB_COUNT]; |
267 | |
268 | #ifdef CONFIG_MEDIA_CONTROLLER |
269 | struct media_device *media_dev; |
270 | struct media_pad video_pad, vbi_pad; |
271 | struct media_entity *decoder; |
272 | struct media_entity input_ent[AU0828_MAX_INPUT]; |
273 | struct media_pad input_pad[AU0828_MAX_INPUT]; |
274 | struct media_entity_notify entity_notify; |
275 | struct media_entity *tuner; |
276 | struct media_link *active_link; |
277 | struct media_entity *active_source; |
278 | struct media_entity *active_sink; |
279 | struct media_entity *active_link_owner; |
280 | struct media_entity *active_link_user; |
281 | struct media_pipeline *active_link_user_pipe; |
282 | bool active_link_shared; |
283 | #endif |
284 | }; |
285 | |
286 | |
287 | /* ----------------------------------------------------------- */ |
288 | #define au0828_read(dev, reg) au0828_readreg(dev, reg) |
289 | #define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value) |
290 | #define au0828_andor(dev, reg, mask, value) \ |
291 | au0828_writereg(dev, reg, \ |
292 | (au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask))) |
293 | |
294 | #define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit)) |
295 | #define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0) |
296 | |
297 | /* ----------------------------------------------------------- */ |
298 | /* au0828-core.c */ |
299 | extern u32 au0828_read(struct au0828_dev *dev, u16 reg); |
300 | extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val); |
301 | extern void au0828_usb_release(struct au0828_dev *dev); |
302 | extern int au0828_debug; |
303 | |
304 | /* ----------------------------------------------------------- */ |
305 | /* au0828-cards.c */ |
306 | extern struct au0828_board au0828_boards[]; |
307 | extern struct usb_device_id au0828_usb_id_table[]; |
308 | extern void au0828_gpio_setup(struct au0828_dev *dev); |
309 | extern int au0828_tuner_callback(void *priv, int component, |
310 | int command, int arg); |
311 | extern void au0828_card_setup(struct au0828_dev *dev); |
312 | |
313 | /* ----------------------------------------------------------- */ |
314 | /* au0828-i2c.c */ |
315 | extern int au0828_i2c_register(struct au0828_dev *dev); |
316 | extern int au0828_i2c_unregister(struct au0828_dev *dev); |
317 | |
318 | /* ----------------------------------------------------------- */ |
319 | /* au0828-video.c */ |
320 | extern int au0828_start_analog_streaming(struct vb2_queue *vq, |
321 | unsigned int count); |
322 | extern void au0828_stop_vbi_streaming(struct vb2_queue *vq); |
323 | #ifdef CONFIG_VIDEO_AU0828_V4L2 |
324 | extern int au0828_v4l2_device_register(struct usb_interface *interface, |
325 | struct au0828_dev *dev); |
326 | |
327 | extern int au0828_analog_register(struct au0828_dev *dev, |
328 | struct usb_interface *interface); |
329 | extern int au0828_analog_unregister(struct au0828_dev *dev); |
330 | extern void au0828_usb_v4l2_media_release(struct au0828_dev *dev); |
331 | extern void au0828_v4l2_suspend(struct au0828_dev *dev); |
332 | extern void au0828_v4l2_resume(struct au0828_dev *dev); |
333 | #else |
334 | static inline int au0828_v4l2_device_register(struct usb_interface *interface, |
335 | struct au0828_dev *dev) |
336 | { return 0; }; |
337 | static inline int au0828_analog_register(struct au0828_dev *dev, |
338 | struct usb_interface *interface) |
339 | { return 0; }; |
340 | static inline int au0828_analog_unregister(struct au0828_dev *dev) |
341 | { return 0; }; |
342 | static inline void au0828_usb_v4l2_media_release(struct au0828_dev *dev) { }; |
343 | static inline void au0828_v4l2_suspend(struct au0828_dev *dev) { }; |
344 | static inline void au0828_v4l2_resume(struct au0828_dev *dev) { }; |
345 | #endif |
346 | |
347 | /* ----------------------------------------------------------- */ |
348 | /* au0828-dvb.c */ |
349 | extern int au0828_dvb_register(struct au0828_dev *dev); |
350 | extern void au0828_dvb_unregister(struct au0828_dev *dev); |
351 | void au0828_dvb_suspend(struct au0828_dev *dev); |
352 | void au0828_dvb_resume(struct au0828_dev *dev); |
353 | |
354 | /* au0828-vbi.c */ |
355 | extern const struct vb2_ops au0828_vbi_qops; |
356 | |
357 | #define dprintk(level, fmt, arg...)\ |
358 | do { if (au0828_debug & level)\ |
359 | printk(KERN_DEBUG pr_fmt(fmt), ## arg);\ |
360 | } while (0) |
361 | |
362 | /* au0828-input.c */ |
363 | #ifdef CONFIG_VIDEO_AU0828_RC |
364 | extern int au0828_rc_register(struct au0828_dev *dev); |
365 | extern void au0828_rc_unregister(struct au0828_dev *dev); |
366 | extern int au0828_rc_suspend(struct au0828_dev *dev); |
367 | extern int au0828_rc_resume(struct au0828_dev *dev); |
368 | #else |
369 | static inline int au0828_rc_register(struct au0828_dev *dev) { return 0; } |
370 | static inline void au0828_rc_unregister(struct au0828_dev *dev) { } |
371 | static inline int au0828_rc_suspend(struct au0828_dev *dev) { return 0; } |
372 | static inline int au0828_rc_resume(struct au0828_dev *dev) { return 0; } |
373 | #endif |
374 | |