1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Driver for the Auvitek AU0828 USB bridge
5 * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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>
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>
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>
34 #include "au0828-reg.h"
35 #include "au0828-cards.h"
38 #define URB_BUFSIZE (0xe522)
40 /* Analog constants */
41 #define NTSC_STD_W 720
42 #define NTSC_STD_H 480
44 #define AU0828_INTERLACED_DEFAULT 1
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
50 #define AU0828_MIN_BUF 4
51 #define AU0828_DEF_BUF 8
53 #define AU0828_MAX_INPUT 4
55 /* au0828 resource types (used for res_get/res_lock etc */
56 #define AU0828_RESOURCE_VIDEO 0x01
57 #define AU0828_RESOURCE_VBI 0x02
60 AU0828_VMUX_UNDEFINED = 0,
61 AU0828_VMUX_COMPOSITE,
64 AU0828_VMUX_TELEVISION,
69 enum au0828_itype type;
72 void (*audio_setup) (void *priv, int enable);
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];
87 struct dvb_adapter adapter;
88 struct dvb_frontend *frontend;
89 struct dvb_demux demux;
91 struct dmx_frontend fe_hw;
92 struct dmx_frontend fe_mem;
98 int (*set_frontend)(struct dvb_frontend *fe);
101 enum au0828_stream_state {
107 #define AUVI_INPUT(nr) (dev->board.input[nr])
110 enum au0828_dev_state {
112 DEV_DISCONNECTED = 1,
113 DEV_MISCONFIGURED = 2
118 struct au0828_usb_isoc_ctl {
119 /* max packet size of isoc transaction */
122 /* number of allocated urbs */
125 /* urb for isoc transfers */
128 /* transfer buffers for isoc transfer */
129 char **transfer_buffer;
131 /* Last buffer command and region */
133 int pos, size, pktsize;
135 /* Last field: ODD or EVEN? */
138 /* Stores incomplete commands */
142 /* Stores already requested buffers */
143 struct au0828_buffer *buf;
144 struct au0828_buffer *vbi_buf;
146 /* Stores the number of received fields */
149 /* isoc urb callback */
150 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);
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;
161 unsigned long length;
163 /* pointer to vmalloc memory address in vb */
167 struct au0828_dmaqueue {
168 struct list_head active;
169 /* Counters to control buffer fill */
175 struct usb_device *usbdev;
177 struct au0828_board board;
181 struct i2c_adapter i2c_adap;
182 struct i2c_algorithm i2c_algo;
183 struct i2c_client i2c_client;
187 struct au0828_dvb dvb;
188 struct work_struct restart_streaming;
189 struct timer_list bulk_timeout;
190 int bulk_timeout_running;
192 #ifdef CONFIG_VIDEO_AU0828_V4L2
194 struct v4l2_device v4l2_dev;
195 struct v4l2_ctrl_handler v4l2_ctrl_hdl;
197 #ifdef CONFIG_VIDEO_AU0828_RC
198 struct au0828_rc *ir;
201 struct video_device vdev;
202 struct video_device vbi_dev;
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;
210 unsigned int frame_count;
211 unsigned int vbi_frame_count;
213 struct timer_list vid_timeout;
214 int vid_timeout_running;
215 struct timer_list vbi_timeout;
216 int vbi_timeout_running;
232 __u8 isoc_in_endpointaddr;
234 int greenscreen_detected;
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;
245 /* Isoc control struct */
246 struct au0828_dmaqueue vidq;
247 struct au0828_dmaqueue vbiq;
248 struct au0828_usb_isoc_ctl isoc_ctl;
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
260 /* DVB USB / URB Related */
261 bool urb_streaming, need_urb_start;
262 struct urb *urbs[URB_COUNT];
264 /* Preallocated transfer digital transfer buffers */
266 char *dig_transfer_buffer[URB_COUNT];
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;
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)))
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)
297 /* ----------------------------------------------------------- */
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;
304 /* ----------------------------------------------------------- */
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);
313 /* ----------------------------------------------------------- */
315 extern int au0828_i2c_register(struct au0828_dev *dev);
316 extern int au0828_i2c_unregister(struct au0828_dev *dev);
318 /* ----------------------------------------------------------- */
320 extern int au0828_start_analog_streaming(struct vb2_queue *vq,
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);
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);
334 static inline int au0828_v4l2_device_register(struct usb_interface *interface,
335 struct au0828_dev *dev)
337 static inline int au0828_analog_register(struct au0828_dev *dev,
338 struct usb_interface *interface)
340 static inline int au0828_analog_unregister(struct au0828_dev *dev)
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) { };
347 /* ----------------------------------------------------------- */
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);
355 extern const struct vb2_ops au0828_vbi_qops;
357 #define dprintk(level, fmt, arg...)\
358 do { if (au0828_debug & level)\
359 printk(KERN_DEBUG pr_fmt(fmt), ## arg);\
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);
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; }