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1 /*
2    tm6000.h - driver for TM5600/TM6000/TM6010 USB video capture devices
3
4    Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
5
6    Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
7         - DVB-T support
8
9    This program is free software; you can redistribute it and/or modify
10    it under the terms of the GNU General Public License as published by
11    the Free Software Foundation version 2
12
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17
18    You should have received a copy of the GNU General Public License
19    along with this program; if not, write to the Free Software
20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21  */
22
23 // Use the tm6000-hack, instead of the proper initialization code
24 //#define HACK 1
25
26 #include <linux/videodev2.h>
27 #include <media/v4l2-common.h>
28 #include <media/videobuf-vmalloc.h>
29 #include "tm6000-usb-isoc.h"
30 #include <linux/i2c.h>
31 #include <linux/mutex.h>
32 #include <media/v4l2-device.h>
33
34
35 #include <linux/dvb/frontend.h>
36 #include "dvb_demux.h"
37 #include "dvb_frontend.h"
38 #include "dmxdev.h"
39
40 #define TM6000_VERSION KERNEL_VERSION(0, 0, 2)
41
42 /* Inputs */
43
44 enum tm6000_itype {
45         TM6000_INPUT_TV = 0,
46         TM6000_INPUT_COMPOSITE,
47         TM6000_INPUT_SVIDEO,
48 };
49
50 enum tm6000_devtype {
51         TM6000 = 0,
52         TM5600,
53         TM6010,
54 };
55
56 /* ------------------------------------------------------------------
57         Basic structures
58    ------------------------------------------------------------------*/
59
60 struct tm6000_fmt {
61         char  *name;
62         u32   fourcc;          /* v4l2 format id */
63         int   depth;
64 };
65
66 /* buffer for one video frame */
67 struct tm6000_buffer {
68         /* common v4l buffer stuff -- must be first */
69         struct videobuf_buffer vb;
70
71         struct tm6000_fmt      *fmt;
72 };
73
74 struct tm6000_dmaqueue {
75         struct list_head       active;
76         struct list_head       queued;
77
78         /* thread for generating video stream*/
79         struct task_struct         *kthread;
80         wait_queue_head_t          wq;
81         /* Counters to control fps rate */
82         int                        frame;
83         int                        ini_jiffies;
84 };
85
86 /* device states */
87 enum tm6000_core_state {
88         DEV_INITIALIZED   = 0x01,
89         DEV_DISCONNECTED  = 0x02,
90         DEV_MISCONFIGURED = 0x04,
91 };
92
93 /* io methods */
94 enum tm6000_io_method {
95         IO_NONE,
96         IO_READ,
97         IO_MMAP,
98 };
99
100 enum tm6000_mode {
101         TM6000_MODE_UNKNOWN=0,
102         TM6000_MODE_ANALOG,
103         TM6000_MODE_DIGITAL,
104 };
105
106 struct tm6000_capabilities {
107         unsigned int    has_tuner:1;
108         unsigned int    has_tda9874:1;
109         unsigned int    has_dvb:1;
110         unsigned int    has_zl10353:1;
111         unsigned int    has_eeprom:1;
112         unsigned int    has_remote:1;
113 };
114
115 struct tm6000_dvb {
116         struct dvb_adapter      adapter;
117         struct dvb_demux        demux;
118         struct dvb_frontend     *frontend;
119         struct dmxdev           dmxdev;
120         unsigned int            streams;
121         struct urb              *bulk_urb;
122         struct mutex            mutex;
123 };
124
125 struct tm6000_core {
126         /* generic device properties */
127         char                            name[30];       /* name (including minor) of the device */
128         int                             model;          /* index in the device_data struct */
129         int                             devno;          /* marks the number of this device */
130         enum tm6000_devtype             dev_type;       /* type of device */
131
132         v4l2_std_id                     norm;           /* Current norm */
133         int                             width,height;   /* Selected resolution */
134
135         enum tm6000_core_state          state;
136
137         /* Device Capabilities*/
138         struct tm6000_capabilities      caps;
139
140         /* Tuner configuration */
141         int                             tuner_type;             /* type of the tuner */
142         int                             tuner_addr;             /* tuner address */
143         int                             tuner_reset_gpio;       /* GPIO used for tuner reset */
144
145         /* Demodulator configuration */
146         int                             demod_addr;     /* demodulator address */
147
148         int                             audio_bitrate;
149         /* i2c i/o */
150         struct i2c_adapter              i2c_adap;
151         struct i2c_client               i2c_client;
152
153         /* video for linux */
154         struct list_head                tm6000_corelist;
155         int                             users;
156
157         /* various device info */
158         unsigned int                    resources;
159         struct video_device             *vfd;
160         struct tm6000_dmaqueue          vidq;
161         struct v4l2_device              v4l2_dev;
162
163         int                             input;
164         int                             freq;
165         unsigned int                    fourcc;
166
167         enum tm6000_mode                mode;
168
169         /* DVB-T support */
170         struct tm6000_dvb               *dvb;
171
172         /* locks */
173         struct mutex                    lock;
174
175         /* usb transfer */
176         struct usb_device               *udev;          /* the usb device */
177
178         struct usb_host_endpoint        *bulk_in, *bulk_out, *isoc_in, *isoc_out;
179         unsigned int                    max_bulk_in, max_bulk_out;
180         unsigned int                    max_isoc_in, max_isoc_out;
181
182         /* scaler!=0 if scaler is active*/
183         int                             scaler;
184
185                 /* Isoc control struct */
186         struct usb_isoc_ctl          isoc_ctl;
187
188         spinlock_t                   slock;
189 };
190
191 struct tm6000_fh {
192         struct tm6000_core           *dev;
193
194         /* video capture */
195         struct tm6000_fmt            *fmt;
196         unsigned int                 width,height;
197         struct videobuf_queue        vb_vidq;
198
199         enum v4l2_buf_type           type;
200 };
201
202 #define TM6000_STD      V4L2_STD_PAL|V4L2_STD_PAL_N|V4L2_STD_PAL_Nc|    \
203                         V4L2_STD_PAL_M|V4L2_STD_PAL_60|V4L2_STD_NTSC_M| \
204                         V4L2_STD_NTSC_M_JP|V4L2_STD_SECAM
205
206 /* In tm6000-cards.c */
207
208 int tm6000_tuner_callback (void *ptr, int component, int command, int arg);
209 int tm6000_cards_setup(struct tm6000_core *dev);
210
211 /* In tm6000-core.c */
212
213 int tm6000_read_write_usb (struct tm6000_core *dev, u8 reqtype, u8 req,
214                            u16 value, u16 index, u8 *buf, u16 len);
215 int tm6000_get_reg (struct tm6000_core *dev, u8 req, u16 value, u16 index);
216 int tm6000_get_reg16(struct tm6000_core *dev, u8 req, u16 value, u16 index);
217 int tm6000_set_reg (struct tm6000_core *dev, u8 req, u16 value, u16 index);
218 int tm6000_init (struct tm6000_core *dev);
219
220 int tm6000_init_analog_mode (struct tm6000_core *dev);
221 int tm6000_init_digital_mode (struct tm6000_core *dev);
222 int tm6000_set_audio_bitrate (struct tm6000_core *dev, int bitrate);
223
224 int tm6000_dvb_register(struct tm6000_core *dev);
225 void tm6000_dvb_unregister(struct tm6000_core *dev);
226
227 int tm6000_v4l2_register(struct tm6000_core *dev);
228 int tm6000_v4l2_unregister(struct tm6000_core *dev);
229 int tm6000_v4l2_exit(void);
230 void tm6000_set_fourcc_format(struct tm6000_core *dev);
231
232 /* In tm6000-stds.c */
233 void tm6000_get_std_res(struct tm6000_core *dev);
234 int tm6000_set_standard (struct tm6000_core *dev, v4l2_std_id *norm);
235
236 /* In tm6000-i2c.c */
237 int tm6000_i2c_register(struct tm6000_core *dev);
238 int tm6000_i2c_unregister(struct tm6000_core *dev);
239
240 /* In tm6000-queue.c */
241
242 int tm6000_v4l2_mmap(struct file *filp, struct vm_area_struct *vma);
243
244 int tm6000_vidioc_streamon(struct file *file, void *priv,
245                            enum v4l2_buf_type i);
246 int tm6000_vidioc_streamoff(struct file *file, void *priv,
247                             enum v4l2_buf_type i);
248 int tm6000_vidioc_reqbufs (struct file *file, void *priv,
249                            struct v4l2_requestbuffers *rb);
250 int tm6000_vidioc_querybuf (struct file *file, void *priv,
251                             struct v4l2_buffer *b);
252 int tm6000_vidioc_qbuf (struct file *file, void *priv, struct v4l2_buffer *b);
253 int tm6000_vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *b);
254 ssize_t tm6000_v4l2_read(struct file *filp, char __user * buf, size_t count,
255                          loff_t * f_pos);
256 unsigned int tm6000_v4l2_poll(struct file *file,
257                               struct poll_table_struct *wait);
258 int tm6000_queue_init(struct tm6000_core *dev);
259
260 /* In tm6000-alsa.c */
261 int tm6000_audio_init(struct tm6000_core *dev, int idx);
262
263
264 /* Debug stuff */
265
266 extern int tm6000_debug;
267
268 #define dprintk(dev, level, fmt, arg...) do {\
269         if (tm6000_debug & level) \
270                 printk(KERN_INFO "(%lu) %s %s :"fmt, jiffies,           \
271                          dev->name, __FUNCTION__ , ##arg); } while (0)
272
273 #define V4L2_DEBUG_REG          0x0004
274 #define V4L2_DEBUG_I2C          0x0008
275 #define V4L2_DEBUG_QUEUE        0x0010
276 #define V4L2_DEBUG_ISOC         0x0020
277 #define V4L2_DEBUG_RES_LOCK     0x0040  /* Resource locking */
278 #define V4L2_DEBUG_OPEN         0x0080  /* video open/close debug */
279
280 #define tm6000_err(fmt, arg...) do {\
281         printk(KERN_ERR "tm6000 %s :"fmt, \
282                 __FUNCTION__ , ##arg); } while (0)
283
284