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>
34 #include "dvb_demux.h"
35 #include "dvb_frontend.h"
39 #include "au0828-reg.h"
40 #include "au0828-cards.h"
42 #define DRIVER_NAME "au0828"
44 #define URB_BUFSIZE (0xe522)
46 /* Analog constants */
47 #define NTSC_STD_W 720
48 #define NTSC_STD_H 480
50 #define AU0828_INTERLACED_DEFAULT 1
51 #define V4L2_CID_PRIVATE_SHARPNESS (V4L2_CID_PRIVATE_BASE + 0)
53 /* Defination for AU0828 USB transfer */
54 #define AU0828_MAX_ISO_BUFS 12 /* maybe resize this value in the future */
55 #define AU0828_ISO_PACKETS_PER_URB 10
56 #define AU0828_ISO_MAX_FRAME_SIZE (3 * 1024)
57 #define AU0828_ISO_BUFFER_SIZE (AU0828_ISO_PACKETS_PER_URB * AU0828_ISO_MAX_FRAME_SIZE)
59 #define AU0828_MIN_BUF 4
60 #define AU0828_DEF_BUF 8
62 #define AU0828_MAX_IMAGES 10
63 #define AU0828_FRAME_SIZE (1028 * 1024 * 4)
64 #define AU0828_URB_TIMEOUT msecs_to_jiffies(AU0828_MAX_ISO_BUFS * AU0828_ISO_PACKETS_PER_URB)
66 #define AU0828_MAX_INPUT 4
69 AU0828_VMUX_COMPOSITE = 1,
72 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 struct au0828_input input[AU0828_MAX_INPUT];
94 struct dvb_adapter adapter;
95 struct dvb_frontend *frontend;
96 struct dvb_demux demux;
98 struct dmx_frontend fe_hw;
99 struct dmx_frontend fe_mem;
104 enum au0828_stream_state {
110 #define AUVI_INPUT(nr) (dev->board.input[nr])
113 enum au0828_dev_state {
114 DEV_INITIALIZED = 0x01,
115 DEV_DISCONNECTED = 0x02,
116 DEV_MISCONFIGURED = 0x04
120 struct au0828_dev *dev;
121 unsigned int stream_on:1; /* Locks streams */
122 struct videobuf_queue vb_vidq;
123 enum v4l2_buf_type type;
126 struct au0828_usb_isoc_ctl {
127 /* max packet size of isoc transaction */
130 /* number of allocated urbs */
133 /* urb for isoc transfers */
136 /* transfer buffers for isoc transfer */
137 char **transfer_buffer;
139 /* Last buffer command and region */
141 int pos, size, pktsize;
143 /* Last field: ODD or EVEN? */
146 /* Stores incomplete commands */
150 /* Stores already requested buffers */
151 struct au0828_buffer *buf;
153 /* Stores the number of received fields */
156 /* isoc urb callback */
157 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);
161 /* buffer for one video frame */
162 struct au0828_buffer {
163 /* common v4l buffer stuff -- must be first */
164 struct videobuf_buffer vb;
166 struct list_head frame;
171 struct au0828_dmaqueue {
172 struct list_head active;
173 struct list_head queued;
175 wait_queue_head_t wq;
177 /* Counters to control buffer fill */
183 struct usb_device *usbdev;
185 struct au0828_board board;
189 struct i2c_adapter i2c_adap;
190 struct i2c_algo_bit_data i2c_algo;
191 struct i2c_client i2c_client;
195 struct au0828_dvb dvb;
198 struct list_head au0828list;
200 unsigned int stream_on:1; /* Locks streams */
201 struct video_device *vdev;
202 struct video_device *vbi_dev;
210 __u8 isoc_in_endpointaddr;
212 int greenscreen_detected;
213 unsigned int frame_count;
216 unsigned int ctrl_input;
217 enum au0828_dev_state dev_state;
218 enum au0828_stream_state stream_state;
219 wait_queue_head_t open;
223 /* Isoc control struct */
224 struct au0828_dmaqueue vidq;
225 struct au0828_usb_isoc_ctl isoc_ctl;
229 int alt; /* alternate */
230 int max_pkt_size; /* max packet size of isoc transaction */
231 int num_alt; /* Number of alternative settings */
232 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
233 struct urb *urb[AU0828_MAX_ISO_BUFS]; /* urb for isoc transfers */
234 char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc
237 /* USB / URB Related */
239 struct urb *urbs[URB_COUNT];
242 /* ----------------------------------------------------------- */
243 #define au0828_read(dev, reg) au0828_readreg(dev, reg)
244 #define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value)
245 #define au0828_andor(dev, reg, mask, value) \
246 au0828_writereg(dev, reg, \
247 (au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask)))
249 #define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit))
250 #define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0)
252 /* ----------------------------------------------------------- */
254 extern u32 au0828_read(struct au0828_dev *dev, u16 reg);
255 extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);
256 extern int au0828_debug;
258 /* ----------------------------------------------------------- */
260 extern struct au0828_board au0828_boards[];
261 extern struct usb_device_id au0828_usb_id_table[];
262 extern void au0828_gpio_setup(struct au0828_dev *dev);
263 extern int au0828_tuner_callback(void *priv, int component,
264 int command, int arg);
265 extern void au0828_card_setup(struct au0828_dev *dev);
267 /* ----------------------------------------------------------- */
269 extern int au0828_i2c_register(struct au0828_dev *dev);
270 extern int au0828_i2c_unregister(struct au0828_dev *dev);
271 extern void au0828_call_i2c_clients(struct au0828_dev *dev,
272 unsigned int cmd, void *arg);
274 /* ----------------------------------------------------------- */
276 int au0828_analog_register(struct au0828_dev *dev,
277 struct usb_interface *interface);
278 int au0828_analog_stream_disable(struct au0828_dev *d);
279 void au0828_analog_unregister(struct au0828_dev *dev);
281 /* ----------------------------------------------------------- */
283 extern int au0828_dvb_register(struct au0828_dev *dev);
284 extern void au0828_dvb_unregister(struct au0828_dev *dev);
286 #define dprintk(level, fmt, arg...)\
287 do { if (au0828_debug & level)\
288 printk(KERN_DEBUG DRIVER_NAME "/0: " fmt, ## arg);\