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Diffstat (limited to 'drivers/media/radio/miropcm20-radio.c')
-rw-r--r--drivers/media/radio/miropcm20-radio.c266
1 files changed, 0 insertions, 266 deletions
diff --git a/drivers/media/radio/miropcm20-radio.c b/drivers/media/radio/miropcm20-radio.c
deleted file mode 100644
index 7fd7ee2d32c1..000000000000
--- a/drivers/media/radio/miropcm20-radio.c
+++ /dev/null
@@ -1,266 +0,0 @@
1/* Miro PCM20 radio driver for Linux radio support
2 * (c) 1998 Ruurd Reitsma <R.A.Reitsma@wbmt.tudelft.nl>
3 * Thanks to Norberto Pellici for the ACI device interface specification
4 * The API part is based on the radiotrack driver by M. Kirkwood
5 * This driver relies on the aci mixer (drivers/sound/aci.c)
6 * Look there for further info...
7 */
8
9/* Revision history:
10 *
11 * 1998 Ruurd Reitsma <R.A.Reitsma@wbmt.tudelft.nl>
12 * 2000-09-05 Robert Siemer <Robert.Siemer@gmx.de>
13 * removed unfinished volume control (maybe adding it later again)
14 * use OSS-mixer; added stereo control
15 */
16
17/* What ever you think about the ACI, version 0x07 is not very well!
18 * I can't get frequency, 'tuner status', 'tuner flags' or mute/mono
19 * conditions... Robert
20 */
21
22#include <linux/module.h>
23#include <linux/init.h>
24#include <linux/videodev.h>
25#include <media/v4l2-common.h>
26#include <media/v4l2-ioctl.h>
27#include "oss/aci.h"
28#include "miropcm20-rds-core.h"
29
30static int radio_nr = -1;
31module_param(radio_nr, int, 0);
32
33struct pcm20_device {
34 unsigned long freq;
35 int muted;
36 int stereo;
37};
38
39
40static int pcm20_mute(struct pcm20_device *dev, unsigned char mute)
41{
42 dev->muted = mute;
43 return aci_write_cmd(ACI_SET_TUNERMUTE, mute);
44}
45
46static int pcm20_stereo(struct pcm20_device *dev, unsigned char stereo)
47{
48 dev->stereo = stereo;
49 return aci_write_cmd(ACI_SET_TUNERMONO, !stereo);
50}
51
52static int pcm20_setfreq(struct pcm20_device *dev, unsigned long freq)
53{
54 unsigned char freql;
55 unsigned char freqh;
56
57 dev->freq=freq;
58
59 freq /= 160;
60 if (!(aci_version==0x07 || aci_version>=0xb0))
61 freq /= 10; /* I don't know exactly which version
62 * needs this hack */
63 freql = freq & 0xff;
64 freqh = freq >> 8;
65
66 aci_rds_cmd(RDS_RESET, NULL, 0);
67 pcm20_stereo(dev, 1);
68
69 return aci_rw_cmd(ACI_WRITE_TUNE, freql, freqh);
70}
71
72static int pcm20_getflags(struct pcm20_device *dev, __u32 *flags, __u16 *signal)
73{
74 /* okay, check for signal, stereo and rds here... */
75 int i;
76 unsigned char buf;
77
78 if ((i=aci_rw_cmd(ACI_READ_TUNERSTATION, -1, -1))<0)
79 return i;
80 pr_debug("check_sig: 0x%x\n", i);
81 if (i & 0x80) {
82 /* no signal from tuner */
83 *flags=0;
84 *signal=0;
85 return 0;
86 } else
87 *signal=0xffff;
88
89 if ((i=aci_rw_cmd(ACI_READ_TUNERSTEREO, -1, -1))<0)
90 return i;
91 if (i & 0x40) {
92 *flags=0;
93 } else {
94 /* stereo */
95 *flags=VIDEO_TUNER_STEREO_ON;
96 /* I can't see stereo, when forced to mono */
97 dev->stereo=1;
98 }
99
100 if ((i=aci_rds_cmd(RDS_STATUS, &buf, 1))<0)
101 return i;
102 if (buf & 1)
103 /* RDS available */
104 *flags|=VIDEO_TUNER_RDS_ON;
105 else
106 return 0;
107
108 if ((i=aci_rds_cmd(RDS_RXVALUE, &buf, 1))<0)
109 return i;
110 pr_debug("rds-signal: %d\n", buf);
111 if (buf > 15) {
112 printk("miropcm20-radio: RX strengths unexpected high...\n");
113 buf=15;
114 }
115 /* refine signal */
116 if ((*signal=SCALE(15, 0xffff, buf))==0)
117 *signal = 1;
118
119 return 0;
120}
121
122static int pcm20_do_ioctl(struct inode *inode, struct file *file,
123 unsigned int cmd, void *arg)
124{
125 struct video_device *dev = video_devdata(file);
126 struct pcm20_device *pcm20 = dev->priv;
127 int i;
128
129 switch(cmd)
130 {
131 case VIDIOCGCAP:
132 {
133 struct video_capability *v = arg;
134 memset(v,0,sizeof(*v));
135 v->type=VID_TYPE_TUNER;
136 strcpy(v->name, "Miro PCM20");
137 v->channels=1;
138 v->audios=1;
139 return 0;
140 }
141 case VIDIOCGTUNER:
142 {
143 struct video_tuner *v = arg;
144 if(v->tuner) /* Only 1 tuner */
145 return -EINVAL;
146 v->rangelow=87*16000;
147 v->rangehigh=108*16000;
148 pcm20_getflags(pcm20, &v->flags, &v->signal);
149 v->flags|=VIDEO_TUNER_LOW;
150 v->mode=VIDEO_MODE_AUTO;
151 strcpy(v->name, "FM");
152 return 0;
153 }
154 case VIDIOCSTUNER:
155 {
156 struct video_tuner *v = arg;
157 if(v->tuner!=0)
158 return -EINVAL;
159 /* Only 1 tuner so no setting needed ! */
160 return 0;
161 }
162 case VIDIOCGFREQ:
163 {
164 unsigned long *freq = arg;
165 *freq = pcm20->freq;
166 return 0;
167 }
168 case VIDIOCSFREQ:
169 {
170 unsigned long *freq = arg;
171 pcm20->freq = *freq;
172 i=pcm20_setfreq(pcm20, pcm20->freq);
173 pr_debug("First view (setfreq): 0x%x\n", i);
174 return i;
175 }
176 case VIDIOCGAUDIO:
177 {
178 struct video_audio *v = arg;
179 memset(v,0, sizeof(*v));
180 v->flags=VIDEO_AUDIO_MUTABLE;
181 if (pcm20->muted)
182 v->flags|=VIDEO_AUDIO_MUTE;
183 v->mode=VIDEO_SOUND_STEREO;
184 if (pcm20->stereo)
185 v->mode|=VIDEO_SOUND_MONO;
186 /* v->step=2048; */
187 strcpy(v->name, "Radio");
188 return 0;
189 }
190 case VIDIOCSAUDIO:
191 {
192 struct video_audio *v = arg;
193 if(v->audio)
194 return -EINVAL;
195
196 pcm20_mute(pcm20, !!(v->flags&VIDEO_AUDIO_MUTE));
197 if(v->flags&VIDEO_SOUND_MONO)
198 pcm20_stereo(pcm20, 0);
199 if(v->flags&VIDEO_SOUND_STEREO)
200 pcm20_stereo(pcm20, 1);
201
202 return 0;
203 }
204 default:
205 return -ENOIOCTLCMD;
206 }
207}
208
209static int pcm20_ioctl(struct inode *inode, struct file *file,
210 unsigned int cmd, unsigned long arg)
211{
212 return video_usercopy(inode, file, cmd, arg, pcm20_do_ioctl);
213}
214
215static struct pcm20_device pcm20_unit = {
216 .freq = 87*16000,
217 .muted = 1,
218};
219
220static const struct file_operations pcm20_fops = {
221 .owner = THIS_MODULE,
222 .open = video_exclusive_open,
223 .release = video_exclusive_release,
224 .ioctl = pcm20_ioctl,
225#ifdef CONFIG_COMPAT
226 .compat_ioctl = v4l_compat_ioctl32,
227#endif
228 .llseek = no_llseek,
229};
230
231static struct video_device pcm20_radio = {
232 .name = "Miro PCM 20 radio",
233 .fops = &pcm20_fops,
234 .priv = &pcm20_unit
235};
236
237static int __init pcm20_init(void)
238{
239 if(video_register_device(&pcm20_radio, VFL_TYPE_RADIO, radio_nr)==-1)
240 goto video_register_device;
241
242 if(attach_aci_rds()<0)
243 goto attach_aci_rds;
244
245 printk(KERN_INFO "Miro PCM20 radio card driver.\n");
246
247 return 0;
248
249 attach_aci_rds:
250 video_unregister_device(&pcm20_radio);
251 video_register_device:
252 return -EINVAL;
253}
254
255MODULE_AUTHOR("Ruurd Reitsma");
256MODULE_DESCRIPTION("A driver for the Miro PCM20 radio card.");
257MODULE_LICENSE("GPL");
258
259static void __exit pcm20_cleanup(void)
260{
261 unload_aci_rds();
262 video_unregister_device(&pcm20_radio);
263}
264
265module_init(pcm20_init);
266module_exit(pcm20_cleanup);
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