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>
35 #include "dvb_demux.h"
36 #include "dvb_frontend.h"
40 #include "au0828-reg.h"
41 #include "au0828-cards.h"
43 #define DRIVER_NAME "au0828"
45 #define URB_BUFSIZE (0xe522)
47 /* Analog constants */
48 #define NTSC_STD_W 720
49 #define NTSC_STD_H 480
51 #define AU0828_INTERLACED_DEFAULT 1
52 #define V4L2_CID_PRIVATE_SHARPNESS (V4L2_CID_PRIVATE_BASE + 0)
54 /* Defination for AU0828 USB transfer */
55 #define AU0828_MAX_ISO_BUFS 12 /* maybe resize this value in the future */
56 #define AU0828_ISO_PACKETS_PER_URB 10
57 #define AU0828_ISO_MAX_FRAME_SIZE (3 * 1024)
58 #define AU0828_ISO_BUFFER_SIZE (AU0828_ISO_PACKETS_PER_URB * AU0828_ISO_MAX_FRAME_SIZE)
60 #define AU0828_MIN_BUF 4
61 #define AU0828_DEF_BUF 8
63 #define AU0828_MAX_IMAGES 10
64 #define AU0828_FRAME_SIZE (1028 * 1024 * 4)
65 #define AU0828_URB_TIMEOUT msecs_to_jiffies(AU0828_MAX_ISO_BUFS * AU0828_ISO_PACKETS_PER_URB)
67 #define AU0828_MAX_INPUT 4
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 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;
106 enum au0828_stream_state {
112 #define AUVI_INPUT(nr) (dev->board.input[nr])
115 enum au0828_dev_state {
116 DEV_INITIALIZED = 0x01,
117 DEV_DISCONNECTED = 0x02,
118 DEV_MISCONFIGURED = 0x04
122 struct au0828_dev *dev;
123 unsigned int stream_on:1; /* Locks streams */
124 struct videobuf_queue vb_vidq;
125 enum v4l2_buf_type type;
128 struct au0828_usb_isoc_ctl {
129 /* max packet size of isoc transaction */
132 /* number of allocated urbs */
135 /* urb for isoc transfers */
138 /* transfer buffers for isoc transfer */
139 char **transfer_buffer;
141 /* Last buffer command and region */
143 int pos, size, pktsize;
145 /* Last field: ODD or EVEN? */
148 /* Stores incomplete commands */
152 /* Stores already requested buffers */
153 struct au0828_buffer *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 videobuf_buffer vb;
168 struct list_head frame;
173 struct au0828_dmaqueue {
174 struct list_head active;
175 struct list_head queued;
177 wait_queue_head_t wq;
179 /* Counters to control buffer fill */
185 struct usb_device *usbdev;
187 struct au0828_board board;
191 struct i2c_adapter i2c_adap;
192 struct i2c_algorithm i2c_algo;
193 struct i2c_client i2c_client;
197 struct au0828_dvb dvb;
200 struct list_head au0828list;
201 struct v4l2_device v4l2_dev;
203 unsigned int stream_on:1; /* Locks streams */
204 struct video_device *vdev;
205 struct video_device *vbi_dev;
213 __u8 isoc_in_endpointaddr;
215 int greenscreen_detected;
216 unsigned int frame_count;
219 unsigned int ctrl_input;
220 enum au0828_dev_state dev_state;
221 enum au0828_stream_state stream_state;
222 wait_queue_head_t open;
226 /* Isoc control struct */
227 struct au0828_dmaqueue vidq;
228 struct au0828_usb_isoc_ctl isoc_ctl;
232 int alt; /* alternate */
233 int max_pkt_size; /* max packet size of isoc transaction */
234 int num_alt; /* Number of alternative settings */
235 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
236 struct urb *urb[AU0828_MAX_ISO_BUFS]; /* urb for isoc transfers */
237 char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc
240 /* USB / URB Related */
242 struct urb *urbs[URB_COUNT];
245 /* ----------------------------------------------------------- */
246 #define au0828_read(dev, reg) au0828_readreg(dev, reg)
247 #define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value)
248 #define au0828_andor(dev, reg, mask, value) \
249 au0828_writereg(dev, reg, \
250 (au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask)))
252 #define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit))
253 #define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0)
255 /* ----------------------------------------------------------- */
257 extern u32 au0828_read(struct au0828_dev *dev, u16 reg);
258 extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);
259 extern int au0828_debug;
261 /* ----------------------------------------------------------- */
263 extern struct au0828_board au0828_boards[];
264 extern struct usb_device_id au0828_usb_id_table[];
265 extern void au0828_gpio_setup(struct au0828_dev *dev);
266 extern int au0828_tuner_callback(void *priv, int component,
267 int command, int arg);
268 extern void au0828_card_setup(struct au0828_dev *dev);
270 /* ----------------------------------------------------------- */
272 extern int au0828_i2c_register(struct au0828_dev *dev);
273 extern int au0828_i2c_unregister(struct au0828_dev *dev);
274 extern void au0828_call_i2c_clients(struct au0828_dev *dev,
275 unsigned int cmd, void *arg);
277 /* ----------------------------------------------------------- */
279 int au0828_analog_register(struct au0828_dev *dev,
280 struct usb_interface *interface);
281 int au0828_analog_stream_disable(struct au0828_dev *d);
282 void au0828_analog_unregister(struct au0828_dev *dev);
284 /* ----------------------------------------------------------- */
286 extern int au0828_dvb_register(struct au0828_dev *dev);
287 extern void au0828_dvb_unregister(struct au0828_dev *dev);
289 #define dprintk(level, fmt, arg...)\
290 do { if (au0828_debug & level)\
291 printk(KERN_DEBUG DRIVER_NAME "/0: " fmt, ## arg);\