2 * Driver for the Auvitek AU0828 USB bridge
4 * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
18 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20 #include <linux/bitops.h>
21 #include <linux/usb.h>
22 #include <linux/i2c.h>
23 #include <linux/i2c-algo-bit.h>
24 #include <media/tveeprom.h>
27 #include <linux/videodev2.h>
28 #include <media/videobuf2-v4l2.h>
29 #include <media/videobuf2-vmalloc.h>
30 #include <media/v4l2-device.h>
31 #include <media/v4l2-ctrls.h>
32 #include <media/v4l2-fh.h>
33 #include <media/media-device.h>
36 #include <media/demux.h>
37 #include <media/dmxdev.h>
38 #include <media/dvb_demux.h>
39 #include <media/dvb_frontend.h>
40 #include <media/dvb_net.h>
41 #include <media/dvbdev.h>
43 #include "au0828-reg.h"
44 #include "au0828-cards.h"
47 #define URB_BUFSIZE (0xe522)
49 /* Analog constants */
50 #define NTSC_STD_W 720
51 #define NTSC_STD_H 480
53 #define AU0828_INTERLACED_DEFAULT 1
55 /* Defination for AU0828 USB transfer */
56 #define AU0828_MAX_ISO_BUFS 12 /* maybe resize this value in the future */
57 #define AU0828_ISO_PACKETS_PER_URB 128
59 #define AU0828_MIN_BUF 4
60 #define AU0828_DEF_BUF 8
62 #define AU0828_MAX_INPUT 4
64 /* au0828 resource types (used for res_get/res_lock etc */
65 #define AU0828_RESOURCE_VIDEO 0x01
66 #define AU0828_RESOURCE_VBI 0x02
69 AU0828_VMUX_UNDEFINED = 0,
70 AU0828_VMUX_COMPOSITE,
73 AU0828_VMUX_TELEVISION,
78 enum au0828_itype type;
81 void (*audio_setup) (void *priv, int enable);
86 unsigned int tuner_type;
87 unsigned char tuner_addr;
88 unsigned char i2c_clk_divider;
89 unsigned char has_ir_i2c:1;
90 unsigned char has_analog:1;
91 struct au0828_input input[AU0828_MAX_INPUT];
96 struct dvb_adapter adapter;
97 struct dvb_frontend *frontend;
98 struct dvb_demux demux;
100 struct dmx_frontend fe_hw;
101 struct dmx_frontend fe_mem;
107 int (*set_frontend)(struct dvb_frontend *fe);
110 enum au0828_stream_state {
116 #define AUVI_INPUT(nr) (dev->board.input[nr])
119 enum au0828_dev_state {
121 DEV_DISCONNECTED = 1,
122 DEV_MISCONFIGURED = 2
127 struct au0828_usb_isoc_ctl {
128 /* max packet size of isoc transaction */
131 /* number of allocated urbs */
134 /* urb for isoc transfers */
137 /* transfer buffers for isoc transfer */
138 char **transfer_buffer;
140 /* Last buffer command and region */
142 int pos, size, pktsize;
144 /* Last field: ODD or EVEN? */
147 /* Stores incomplete commands */
151 /* Stores already requested buffers */
152 struct au0828_buffer *buf;
153 struct au0828_buffer *vbi_buf;
155 /* Stores the number of received fields */
158 /* isoc urb callback */
159 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);
163 /* buffer for one video frame */
164 struct au0828_buffer {
165 /* common v4l buffer stuff -- must be first */
166 struct vb2_v4l2_buffer vb;
167 struct list_head list;
170 unsigned long length;
172 /* pointer to vmalloc memory address in vb */
176 struct au0828_dmaqueue {
177 struct list_head active;
178 /* Counters to control buffer fill */
184 struct usb_device *usbdev;
186 struct au0828_board board;
190 struct i2c_adapter i2c_adap;
191 struct i2c_algorithm i2c_algo;
192 struct i2c_client i2c_client;
196 struct au0828_dvb dvb;
197 struct work_struct restart_streaming;
198 struct timer_list bulk_timeout;
199 int bulk_timeout_running;
201 #ifdef CONFIG_VIDEO_AU0828_V4L2
203 struct v4l2_device v4l2_dev;
204 struct v4l2_ctrl_handler v4l2_ctrl_hdl;
206 #ifdef CONFIG_VIDEO_AU0828_RC
207 struct au0828_rc *ir;
210 struct video_device vdev;
211 struct video_device vbi_dev;
214 struct vb2_queue vb_vidq;
215 struct vb2_queue vb_vbiq;
216 struct mutex vb_queue_lock;
217 struct mutex vb_vbi_queue_lock;
219 unsigned int frame_count;
220 unsigned int vbi_frame_count;
222 struct timer_list vid_timeout;
223 int vid_timeout_running;
224 struct timer_list vbi_timeout;
225 int vbi_timeout_running;
241 __u8 isoc_in_endpointaddr;
243 int greenscreen_detected;
246 int std_set_in_tuner_core;
247 unsigned int ctrl_input;
248 long unsigned int dev_state; /* defined at enum au0828_dev_state */;
249 enum au0828_stream_state stream_state;
250 wait_queue_head_t open;
254 /* Isoc control struct */
255 struct au0828_dmaqueue vidq;
256 struct au0828_dmaqueue vbiq;
257 struct au0828_usb_isoc_ctl isoc_ctl;
261 int alt; /* alternate */
262 int max_pkt_size; /* max packet size of isoc transaction */
263 int num_alt; /* Number of alternative settings */
264 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
265 struct urb *urb[AU0828_MAX_ISO_BUFS]; /* urb for isoc transfers */
266 char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc
269 /* DVB USB / URB Related */
270 bool urb_streaming, need_urb_start;
271 struct urb *urbs[URB_COUNT];
273 /* Preallocated transfer digital transfer buffers */
275 char *dig_transfer_buffer[URB_COUNT];
277 #ifdef CONFIG_MEDIA_CONTROLLER
278 struct media_device *media_dev;
279 struct media_pad video_pad, vbi_pad;
280 struct media_entity *decoder;
281 struct media_entity input_ent[AU0828_MAX_INPUT];
282 struct media_pad input_pad[AU0828_MAX_INPUT];
283 struct media_entity_notify entity_notify;
284 struct media_entity *tuner;
285 struct media_link *active_link;
286 struct media_entity *active_link_owner;
287 struct media_entity *active_source;
288 struct media_entity *active_sink;
293 /* ----------------------------------------------------------- */
294 #define au0828_read(dev, reg) au0828_readreg(dev, reg)
295 #define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value)
296 #define au0828_andor(dev, reg, mask, value) \
297 au0828_writereg(dev, reg, \
298 (au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask)))
300 #define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit))
301 #define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0)
303 /* ----------------------------------------------------------- */
305 extern u32 au0828_read(struct au0828_dev *dev, u16 reg);
306 extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);
307 extern void au0828_usb_release(struct au0828_dev *dev);
308 extern int au0828_debug;
310 /* ----------------------------------------------------------- */
312 extern struct au0828_board au0828_boards[];
313 extern struct usb_device_id au0828_usb_id_table[];
314 extern void au0828_gpio_setup(struct au0828_dev *dev);
315 extern int au0828_tuner_callback(void *priv, int component,
316 int command, int arg);
317 extern void au0828_card_setup(struct au0828_dev *dev);
319 /* ----------------------------------------------------------- */
321 extern int au0828_i2c_register(struct au0828_dev *dev);
322 extern int au0828_i2c_unregister(struct au0828_dev *dev);
324 /* ----------------------------------------------------------- */
326 extern int au0828_start_analog_streaming(struct vb2_queue *vq,
328 extern void au0828_stop_vbi_streaming(struct vb2_queue *vq);
329 #ifdef CONFIG_VIDEO_AU0828_V4L2
330 extern int au0828_v4l2_device_register(struct usb_interface *interface,
331 struct au0828_dev *dev);
333 extern int au0828_analog_register(struct au0828_dev *dev,
334 struct usb_interface *interface);
335 extern int au0828_analog_unregister(struct au0828_dev *dev);
336 extern void au0828_usb_v4l2_media_release(struct au0828_dev *dev);
337 extern void au0828_v4l2_suspend(struct au0828_dev *dev);
338 extern void au0828_v4l2_resume(struct au0828_dev *dev);
340 static inline int au0828_v4l2_device_register(struct usb_interface *interface,
341 struct au0828_dev *dev)
343 static inline int au0828_analog_register(struct au0828_dev *dev,
344 struct usb_interface *interface)
346 static inline int au0828_analog_unregister(struct au0828_dev *dev)
348 static inline void au0828_usb_v4l2_media_release(struct au0828_dev *dev) { };
349 static inline void au0828_v4l2_suspend(struct au0828_dev *dev) { };
350 static inline void au0828_v4l2_resume(struct au0828_dev *dev) { };
353 /* ----------------------------------------------------------- */
355 extern int au0828_dvb_register(struct au0828_dev *dev);
356 extern void au0828_dvb_unregister(struct au0828_dev *dev);
357 void au0828_dvb_suspend(struct au0828_dev *dev);
358 void au0828_dvb_resume(struct au0828_dev *dev);
361 extern const struct vb2_ops au0828_vbi_qops;
363 #define dprintk(level, fmt, arg...)\
364 do { if (au0828_debug & level)\
365 printk(KERN_DEBUG pr_fmt(fmt), ## arg);\
369 #ifdef CONFIG_VIDEO_AU0828_RC
370 extern int au0828_rc_register(struct au0828_dev *dev);
371 extern void au0828_rc_unregister(struct au0828_dev *dev);
372 extern int au0828_rc_suspend(struct au0828_dev *dev);
373 extern int au0828_rc_resume(struct au0828_dev *dev);
375 static inline int au0828_rc_register(struct au0828_dev *dev) { return 0; }
376 static inline void au0828_rc_unregister(struct au0828_dev *dev) { }
377 static inline int au0828_rc_suspend(struct au0828_dev *dev) { return 0; }
378 static inline int au0828_rc_resume(struct au0828_dev *dev) { return 0; }