ffa4c49d691671f5aeda02be74dac54ed8ca1872
[linux-2.6.git] / drivers / media / video / cx23885 / cx23885-dvb.c
1 /*
2  *  Driver for the Conexant CX23885 PCIe bridge
3  *
4  *  Copyright (c) 2006 Steven Toth <stoth@hauppauge.com>
5  *
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.
10  *
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
14  *
15  *  GNU General Public License for more details.
16  *
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.
20  */
21
22 #include <linux/module.h>
23 #include <linux/init.h>
24 #include <linux/device.h>
25 #include <linux/fs.h>
26 #include <linux/kthread.h>
27 #include <linux/file.h>
28 #include <linux/suspend.h>
29
30 #include "cx23885.h"
31 #include <media/v4l2-common.h>
32
33 #include "s5h1409.h"
34 #include "mt2131.h"
35
36 static unsigned int debug = 0;
37
38 #define dprintk(level,fmt, arg...)      if (debug >= level) \
39         printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg)
40
41 /* ------------------------------------------------------------------ */
42
43 static int dvb_buf_setup(struct videobuf_queue *q,
44                          unsigned int *count, unsigned int *size)
45 {
46         struct cx23885_tsport *port = q->priv_data;
47
48         port->ts_packet_size  = 188 * 4;
49         port->ts_packet_count = 32;
50
51         *size  = port->ts_packet_size * port->ts_packet_count;
52         *count = 32;
53         return 0;
54 }
55
56 static int dvb_buf_prepare(struct videobuf_queue *q,
57                            struct videobuf_buffer *vb, enum v4l2_field field)
58 {
59         struct cx23885_tsport *port = q->priv_data;
60         return cx23885_buf_prepare(q, port, (struct cx23885_buffer*)vb, field);
61 }
62
63 static void dvb_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
64 {
65         struct cx23885_tsport *port = q->priv_data;
66         cx23885_buf_queue(port, (struct cx23885_buffer*)vb);
67 }
68
69 static void dvb_buf_release(struct videobuf_queue *q,
70                             struct videobuf_buffer *vb)
71 {
72         cx23885_free_buffer(q, (struct cx23885_buffer*)vb);
73 }
74
75 static struct videobuf_queue_ops dvb_qops = {
76         .buf_setup    = dvb_buf_setup,
77         .buf_prepare  = dvb_buf_prepare,
78         .buf_queue    = dvb_buf_queue,
79         .buf_release  = dvb_buf_release,
80 };
81
82 static struct s5h1409_config hauppauge_generic_config = {
83         .demod_address = 0x32 >> 1,
84         .output_mode   = S5H1409_SERIAL_OUTPUT,
85         .gpio          = S5H1409_GPIO_ON,
86         .if_freq       = 44000,
87         .inversion     = S5H1409_INVERSION_OFF,
88         .status_mode   = S5H1409_DEMODLOCKING
89 };
90
91 static struct s5h1409_config hauppauge_hvr1800lp_config = {
92         .demod_address = 0x32 >> 1,
93         .output_mode   = S5H1409_SERIAL_OUTPUT,
94         .gpio          = S5H1409_GPIO_OFF,
95         .if_freq       = 44000,
96         .inversion     = S5H1409_INVERSION_OFF,
97         .status_mode   = S5H1409_DEMODLOCKING
98 };
99
100 static struct mt2131_config hauppauge_generic_tunerconfig = {
101         0x61
102 };
103
104 static int dvb_register(struct cx23885_tsport *port)
105 {
106         struct cx23885_dev *dev = port->dev;
107
108         /* init struct videobuf_dvb */
109         port->dvb.name = dev->name;
110
111         /* init frontend */
112         switch (dev->board) {
113         case CX23885_BOARD_HAUPPAUGE_HVR1250:
114         case CX23885_BOARD_HAUPPAUGE_HVR1800:
115                 port->dvb.frontend = dvb_attach(s5h1409_attach,
116                                                 &hauppauge_generic_config,
117                                                 &dev->i2c_bus[0].i2c_adap);
118                 if (port->dvb.frontend != NULL) {
119                         dvb_attach(mt2131_attach, port->dvb.frontend,
120                                    &dev->i2c_bus[0].i2c_adap,
121                                    &hauppauge_generic_tunerconfig, 0);
122                 }
123                 break;
124         case CX23885_BOARD_HAUPPAUGE_HVR1800lp:
125                 port->dvb.frontend = dvb_attach(s5h1409_attach,
126                                                 &hauppauge_hvr1800lp_config,
127                                                 &dev->i2c_bus[0].i2c_adap);
128                 if (port->dvb.frontend != NULL) {
129                         dvb_attach(mt2131_attach, port->dvb.frontend,
130                                    &dev->i2c_bus[0].i2c_adap,
131                                    &hauppauge_generic_tunerconfig, 0);
132                 }
133                 break;
134         default:
135                 printk("%s: The frontend of your DVB/ATSC card isn't supported yet\n",
136                        dev->name);
137                 break;
138         }
139         if (NULL == port->dvb.frontend) {
140                 printk("%s: frontend initialization failed\n", dev->name);
141                 return -1;
142         }
143
144         /* Put the analog decoder in standby to keep it quiet */
145         cx23885_call_i2c_clients (&dev->i2c_bus[0], TUNER_SET_STANDBY, NULL);
146
147         /* register everything */
148         return videobuf_dvb_register(&port->dvb, THIS_MODULE, port,
149                                      &dev->pci->dev);
150 }
151
152 int cx23885_dvb_register(struct cx23885_tsport *port)
153 {
154         struct cx23885_dev *dev = port->dev;
155         int err;
156
157         dprintk(1, "%s\n", __FUNCTION__);
158         dprintk(1, " ->being probed by Card=%d Name=%s, PCI %02x:%02x\n",
159                 dev->board,
160                 dev->name,
161                 dev->pci_bus,
162                 dev->pci_slot);
163
164         err = -ENODEV;
165         if (!(cx23885_boards[dev->board].portc & CX23885_MPEG_DVB))
166                 goto fail_core;
167
168         /* dvb stuff */
169         printk("%s: cx23885 based dvb card\n", dev->name);
170         videobuf_queue_init(&port->dvb.dvbq, &dvb_qops, dev->pci, &port->slock,
171                             V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_TOP,
172                             sizeof(struct cx23885_buffer), port);
173         err = dvb_register(port);
174         if (err != 0)
175                 printk("%s() dvb_register failed err = %d\n", __FUNCTION__, err);
176
177  fail_core:
178         return err;
179 }
180
181 int cx23885_dvb_unregister(struct cx23885_tsport *port)
182 {
183         /* dvb */
184         if(port->dvb.frontend)
185                 videobuf_dvb_unregister(&port->dvb);
186
187         return 0;
188 }
189
190 /*
191  * Local variables:
192  * c-basic-offset: 8
193  * End:
194  * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
195 */