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 128
58 #define AU0828_MIN_BUF 4
59 #define AU0828_DEF_BUF 8
61 #define AU0828_MAX_INPUT 4
63 /* au0828 resource types (used for res_get/res_lock etc */
64 #define AU0828_RESOURCE_VIDEO 0x01
65 #define AU0828_RESOURCE_VBI 0x02
68 AU0828_VMUX_UNDEFINED = 0,
69 AU0828_VMUX_COMPOSITE,
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 unsigned char i2c_clk_divider;
89 struct au0828_input input[AU0828_MAX_INPUT];
95 struct dvb_adapter adapter;
96 struct dvb_frontend *frontend;
97 struct dvb_demux demux;
99 struct dmx_frontend fe_hw;
100 struct dmx_frontend fe_mem;
105 enum au0828_stream_state {
111 #define AUVI_INPUT(nr) (dev->board.input[nr])
114 enum au0828_dev_state {
115 DEV_INITIALIZED = 0x01,
116 DEV_DISCONNECTED = 0x02,
117 DEV_MISCONFIGURED = 0x04
121 struct au0828_dev *dev;
122 unsigned int resources;
124 struct videobuf_queue vb_vidq;
125 struct videobuf_queue vb_vbiq;
126 enum v4l2_buf_type type;
129 struct au0828_usb_isoc_ctl {
130 /* max packet size of isoc transaction */
133 /* number of allocated urbs */
136 /* urb for isoc transfers */
139 /* transfer buffers for isoc transfer */
140 char **transfer_buffer;
142 /* Last buffer command and region */
144 int pos, size, pktsize;
146 /* Last field: ODD or EVEN? */
149 /* Stores incomplete commands */
153 /* Stores already requested buffers */
154 struct au0828_buffer *buf;
155 struct au0828_buffer *vbi_buf;
157 /* Stores the number of received fields */
160 /* isoc urb callback */
161 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);
165 /* buffer for one video frame */
166 struct au0828_buffer {
167 /* common v4l buffer stuff -- must be first */
168 struct videobuf_buffer vb;
170 struct list_head frame;
175 struct au0828_dmaqueue {
176 struct list_head active;
177 struct list_head queued;
179 wait_queue_head_t wq;
181 /* Counters to control buffer fill */
187 struct usb_device *usbdev;
189 struct au0828_board board;
193 struct i2c_adapter i2c_adap;
194 struct i2c_algorithm i2c_algo;
195 struct i2c_client i2c_client;
199 struct au0828_dvb dvb;
200 struct work_struct restart_streaming;
203 struct v4l2_device v4l2_dev;
205 unsigned int resources; /* resources in use */
206 struct video_device *vdev;
207 struct video_device *vbi_dev;
208 struct timer_list vid_timeout;
209 int vid_timeout_running;
210 struct timer_list vbi_timeout;
211 int vbi_timeout_running;
222 __u8 isoc_in_endpointaddr;
224 int greenscreen_detected;
225 unsigned int frame_count;
228 int std_set_in_tuner_core;
229 unsigned int ctrl_input;
230 enum au0828_dev_state dev_state;
231 enum au0828_stream_state stream_state;
232 wait_queue_head_t open;
236 /* Isoc control struct */
237 struct au0828_dmaqueue vidq;
238 struct au0828_dmaqueue vbiq;
239 struct au0828_usb_isoc_ctl isoc_ctl;
243 int alt; /* alternate */
244 int max_pkt_size; /* max packet size of isoc transaction */
245 int num_alt; /* Number of alternative settings */
246 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
247 struct urb *urb[AU0828_MAX_ISO_BUFS]; /* urb for isoc transfers */
248 char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc
251 /* USB / URB Related */
253 struct urb *urbs[URB_COUNT];
256 /* ----------------------------------------------------------- */
257 #define au0828_read(dev, reg) au0828_readreg(dev, reg)
258 #define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value)
259 #define au0828_andor(dev, reg, mask, value) \
260 au0828_writereg(dev, reg, \
261 (au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask)))
263 #define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit))
264 #define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0)
266 /* ----------------------------------------------------------- */
268 extern u32 au0828_read(struct au0828_dev *dev, u16 reg);
269 extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);
270 extern int au0828_debug;
272 /* ----------------------------------------------------------- */
274 extern struct au0828_board au0828_boards[];
275 extern struct usb_device_id au0828_usb_id_table[];
276 extern void au0828_gpio_setup(struct au0828_dev *dev);
277 extern int au0828_tuner_callback(void *priv, int component,
278 int command, int arg);
279 extern void au0828_card_setup(struct au0828_dev *dev);
281 /* ----------------------------------------------------------- */
283 extern int au0828_i2c_register(struct au0828_dev *dev);
284 extern int au0828_i2c_unregister(struct au0828_dev *dev);
286 /* ----------------------------------------------------------- */
288 int au0828_analog_register(struct au0828_dev *dev,
289 struct usb_interface *interface);
290 int au0828_analog_stream_disable(struct au0828_dev *d);
291 void au0828_analog_unregister(struct au0828_dev *dev);
293 /* ----------------------------------------------------------- */
295 extern int au0828_dvb_register(struct au0828_dev *dev);
296 extern void au0828_dvb_unregister(struct au0828_dev *dev);
299 extern struct videobuf_queue_ops au0828_vbi_qops;
301 #define dprintk(level, fmt, arg...)\
302 do { if (au0828_debug & level)\
303 printk(KERN_DEBUG DRIVER_NAME "/0: " fmt, ## arg);\