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.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <linux/usb.h>
23 #include <linux/i2c.h>
24 #include <linux/i2c-algo-bit.h>
25 #include <media/tveeprom.h>
28 #include <linux/videodev2.h>
29 #include <media/videobuf-vmalloc.h>
30 #include <media/v4l2-device.h>
31 #include <media/v4l2-ctrls.h>
32 #include <media/v4l2-fh.h>
37 #include "dvb_demux.h"
38 #include "dvb_frontend.h"
42 #include "au0828-reg.h"
43 #include "au0828-cards.h"
45 #define DRIVER_NAME "au0828"
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
54 #define V4L2_CID_PRIVATE_SHARPNESS (V4L2_CID_PRIVATE_BASE + 0)
56 /* Defination for AU0828 USB transfer */
57 #define AU0828_MAX_ISO_BUFS 12 /* maybe resize this value in the future */
58 #define AU0828_ISO_PACKETS_PER_URB 128
60 #define AU0828_MIN_BUF 4
61 #define AU0828_DEF_BUF 8
63 #define AU0828_MAX_INPUT 4
65 /* au0828 resource types (used for res_get/res_lock etc */
66 #define AU0828_RESOURCE_VIDEO 0x01
67 #define AU0828_RESOURCE_VBI 0x02
70 AU0828_VMUX_UNDEFINED = 0,
71 AU0828_VMUX_COMPOSITE,
74 AU0828_VMUX_TELEVISION,
80 enum au0828_itype type;
83 void (*audio_setup) (void *priv, int enable);
88 unsigned int tuner_type;
89 unsigned char tuner_addr;
90 unsigned char i2c_clk_divider;
91 unsigned char has_ir_i2c:1;
92 struct au0828_input input[AU0828_MAX_INPUT];
98 struct dvb_adapter adapter;
99 struct dvb_frontend *frontend;
100 struct dvb_demux demux;
101 struct dmxdev dmxdev;
102 struct dmx_frontend fe_hw;
103 struct dmx_frontend fe_mem;
109 int (*set_frontend)(struct dvb_frontend *fe);
112 enum au0828_stream_state {
118 #define AUVI_INPUT(nr) (dev->board.input[nr])
121 enum au0828_dev_state {
122 DEV_INITIALIZED = 0x01,
123 DEV_DISCONNECTED = 0x02,
124 DEV_MISCONFIGURED = 0x04
128 /* must be the first field of this struct! */
131 struct au0828_dev *dev;
132 unsigned int resources;
134 struct videobuf_queue vb_vidq;
135 struct videobuf_queue vb_vbiq;
136 enum v4l2_buf_type type;
139 struct au0828_usb_isoc_ctl {
140 /* max packet size of isoc transaction */
143 /* number of allocated urbs */
146 /* urb for isoc transfers */
149 /* transfer buffers for isoc transfer */
150 char **transfer_buffer;
152 /* Last buffer command and region */
154 int pos, size, pktsize;
156 /* Last field: ODD or EVEN? */
159 /* Stores incomplete commands */
163 /* Stores already requested buffers */
164 struct au0828_buffer *buf;
165 struct au0828_buffer *vbi_buf;
167 /* Stores the number of received fields */
170 /* isoc urb callback */
171 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);
175 /* buffer for one video frame */
176 struct au0828_buffer {
177 /* common v4l buffer stuff -- must be first */
178 struct videobuf_buffer vb;
180 struct list_head frame;
185 struct au0828_dmaqueue {
186 struct list_head active;
187 struct list_head queued;
189 wait_queue_head_t wq;
191 /* Counters to control buffer fill */
197 struct usb_device *usbdev;
199 struct au0828_board board;
203 struct i2c_adapter i2c_adap;
204 struct i2c_algorithm i2c_algo;
205 struct i2c_client i2c_client;
209 struct au0828_dvb dvb;
210 struct work_struct restart_streaming;
212 #ifdef CONFIG_VIDEO_AU0828_V4L2
214 struct v4l2_device v4l2_dev;
215 struct v4l2_ctrl_handler v4l2_ctrl_hdl;
217 #ifdef CONFIG_VIDEO_AU0828_RC
218 struct au0828_rc *ir;
222 unsigned int resources; /* resources in use */
223 struct video_device *vdev;
224 struct video_device *vbi_dev;
225 struct timer_list vid_timeout;
226 int vid_timeout_running;
227 struct timer_list vbi_timeout;
228 int vbi_timeout_running;
240 __u8 isoc_in_endpointaddr;
242 int greenscreen_detected;
243 unsigned int frame_count;
246 int std_set_in_tuner_core;
247 unsigned int ctrl_input;
248 enum au0828_dev_state 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 /* USB / URB Related */
271 struct urb *urbs[URB_COUNT];
273 /* Preallocated transfer digital transfer buffers */
275 char *dig_transfer_buffer[URB_COUNT];
278 /* ----------------------------------------------------------- */
279 #define au0828_read(dev, reg) au0828_readreg(dev, reg)
280 #define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value)
281 #define au0828_andor(dev, reg, mask, value) \
282 au0828_writereg(dev, reg, \
283 (au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask)))
285 #define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit))
286 #define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0)
288 /* ----------------------------------------------------------- */
290 extern u32 au0828_read(struct au0828_dev *dev, u16 reg);
291 extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);
292 extern int au0828_debug;
294 /* ----------------------------------------------------------- */
296 extern struct au0828_board au0828_boards[];
297 extern struct usb_device_id au0828_usb_id_table[];
298 extern void au0828_gpio_setup(struct au0828_dev *dev);
299 extern int au0828_tuner_callback(void *priv, int component,
300 int command, int arg);
301 extern void au0828_card_setup(struct au0828_dev *dev);
303 /* ----------------------------------------------------------- */
305 extern int au0828_i2c_register(struct au0828_dev *dev);
306 extern int au0828_i2c_unregister(struct au0828_dev *dev);
308 /* ----------------------------------------------------------- */
310 int au0828_analog_register(struct au0828_dev *dev,
311 struct usb_interface *interface);
312 int au0828_analog_stream_disable(struct au0828_dev *d);
313 void au0828_analog_unregister(struct au0828_dev *dev);
315 /* ----------------------------------------------------------- */
317 extern int au0828_dvb_register(struct au0828_dev *dev);
318 extern void au0828_dvb_unregister(struct au0828_dev *dev);
321 extern struct videobuf_queue_ops au0828_vbi_qops;
323 #define dprintk(level, fmt, arg...)\
324 do { if (au0828_debug & level)\
325 printk(KERN_DEBUG DRIVER_NAME "/0: " fmt, ## arg);\
329 int au0828_rc_register(struct au0828_dev *dev);
330 void au0828_rc_unregister(struct au0828_dev *dev);
331 int au0828_rc_suspend(struct au0828_dev *dev);
332 int au0828_rc_resume(struct au0828_dev *dev);