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path: root/drivers/media/radio/radio-aztech.c
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Diffstat (limited to 'drivers/media/radio/radio-aztech.c')
-rw-r--r--drivers/media/radio/radio-aztech.c45
1 files changed, 23 insertions, 22 deletions
diff --git a/drivers/media/radio/radio-aztech.c b/drivers/media/radio/radio-aztech.c
index 83bdae23417d..95e6322133ee 100644
--- a/drivers/media/radio/radio-aztech.c
+++ b/drivers/media/radio/radio-aztech.c
@@ -1,11 +1,11 @@
1/* radio-aztech.c - Aztech radio card driver for Linux 2.2 1/* radio-aztech.c - Aztech radio card driver for Linux 2.2
2 * 2 *
3 * Adapted to support the Video for Linux API by 3 * Adapted to support the Video for Linux API by
4 * Russell Kroll <rkroll@exploits.org>. Based on original tuner code by: 4 * Russell Kroll <rkroll@exploits.org>. Based on original tuner code by:
5 * 5 *
6 * Quay Ly 6 * Quay Ly
7 * Donald Song 7 * Donald Song
8 * Jason Lewis (jlewis@twilight.vtc.vsc.edu) 8 * Jason Lewis (jlewis@twilight.vtc.vsc.edu)
9 * Scott McGrath (smcgrath@twilight.vtc.vsc.edu) 9 * Scott McGrath (smcgrath@twilight.vtc.vsc.edu)
10 * William McGrath (wmcgrath@twilight.vtc.vsc.edu) 10 * William McGrath (wmcgrath@twilight.vtc.vsc.edu)
11 * 11 *
@@ -31,6 +31,7 @@
31#include <asm/io.h> /* outb, outb_p */ 31#include <asm/io.h> /* outb, outb_p */
32#include <asm/uaccess.h> /* copy to/from user */ 32#include <asm/uaccess.h> /* copy to/from user */
33#include <linux/videodev.h> /* kernel radio structs */ 33#include <linux/videodev.h> /* kernel radio structs */
34#include <media/v4l2-common.h>
34#include <linux/config.h> /* CONFIG_RADIO_AZTECH_PORT */ 35#include <linux/config.h> /* CONFIG_RADIO_AZTECH_PORT */
35 36
36/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */ 37/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
@@ -39,7 +40,7 @@
39#define CONFIG_RADIO_AZTECH_PORT -1 40#define CONFIG_RADIO_AZTECH_PORT -1
40#endif 41#endif
41 42
42static int io = CONFIG_RADIO_AZTECH_PORT; 43static int io = CONFIG_RADIO_AZTECH_PORT;
43static int radio_nr = -1; 44static int radio_nr = -1;
44static int radio_wait_time = 1000; 45static int radio_wait_time = 1000;
45static struct mutex lock; 46static struct mutex lock;
@@ -53,15 +54,15 @@ struct az_device
53 54
54static int volconvert(int level) 55static int volconvert(int level)
55{ 56{
56 level>>=14; /* Map 16bits down to 2 bit */ 57 level>>=14; /* Map 16bits down to 2 bit */
57 level&=3; 58 level&=3;
58 59
59 /* convert to card-friendly values */ 60 /* convert to card-friendly values */
60 switch (level) 61 switch (level)
61 { 62 {
62 case 0: 63 case 0:
63 return 0; 64 return 0;
64 case 1: 65 case 1:
65 return 1; 66 return 1;
66 case 2: 67 case 2:
67 return 4; 68 return 4;
@@ -121,9 +122,9 @@ static int az_setfreq(struct az_device *dev, unsigned long frequency)
121 122
122 frequency += 171200; /* Add 10.7 MHz IF */ 123 frequency += 171200; /* Add 10.7 MHz IF */
123 frequency /= 800; /* Convert to 50 kHz units */ 124 frequency /= 800; /* Convert to 50 kHz units */
124 125
125 mutex_lock(&lock); 126 mutex_lock(&lock);
126 127
127 send_0_byte (dev); /* 0: LSB of frequency */ 128 send_0_byte (dev); /* 0: LSB of frequency */
128 129
129 for (i = 0; i < 13; i++) /* : frequency bits (1-13) */ 130 for (i = 0; i < 13; i++) /* : frequency bits (1-13) */
@@ -151,7 +152,7 @@ static int az_setfreq(struct az_device *dev, unsigned long frequency)
151 152
152 udelay (radio_wait_time); 153 udelay (radio_wait_time);
153 outb_p(128+64+volconvert(dev->curvol), io); 154 outb_p(128+64+volconvert(dev->curvol), io);
154 155
155 mutex_unlock(&lock); 156 mutex_unlock(&lock);
156 157
157 return 0; 158 return 0;
@@ -162,7 +163,7 @@ static int az_do_ioctl(struct inode *inode, struct file *file,
162{ 163{
163 struct video_device *dev = video_devdata(file); 164 struct video_device *dev = video_devdata(file);
164 struct az_device *az = dev->priv; 165 struct az_device *az = dev->priv;
165 166
166 switch(cmd) 167 switch(cmd)
167 { 168 {
168 case VIDIOCGCAP: 169 case VIDIOCGCAP:
@@ -178,7 +179,7 @@ static int az_do_ioctl(struct inode *inode, struct file *file,
178 case VIDIOCGTUNER: 179 case VIDIOCGTUNER:
179 { 180 {
180 struct video_tuner *v = arg; 181 struct video_tuner *v = arg;
181 if(v->tuner) /* Only 1 tuner */ 182 if(v->tuner) /* Only 1 tuner */
182 return -EINVAL; 183 return -EINVAL;
183 v->rangelow=(87*16000); 184 v->rangelow=(87*16000);
184 v->rangehigh=(108*16000); 185 v->rangehigh=(108*16000);
@@ -211,7 +212,7 @@ static int az_do_ioctl(struct inode *inode, struct file *file,
211 return 0; 212 return 0;
212 } 213 }
213 case VIDIOCGAUDIO: 214 case VIDIOCGAUDIO:
214 { 215 {
215 struct video_audio *v = arg; 216 struct video_audio *v = arg;
216 memset(v,0, sizeof(*v)); 217 memset(v,0, sizeof(*v));
217 v->flags|=VIDEO_AUDIO_MUTABLE|VIDEO_AUDIO_VOLUME; 218 v->flags|=VIDEO_AUDIO_MUTABLE|VIDEO_AUDIO_VOLUME;
@@ -222,17 +223,17 @@ static int az_do_ioctl(struct inode *inode, struct file *file,
222 v->volume=az->curvol; 223 v->volume=az->curvol;
223 v->step=16384; 224 v->step=16384;
224 strcpy(v->name, "Radio"); 225 strcpy(v->name, "Radio");
225 return 0; 226 return 0;
226 } 227 }
227 case VIDIOCSAUDIO: 228 case VIDIOCSAUDIO:
228 { 229 {
229 struct video_audio *v = arg; 230 struct video_audio *v = arg;
230 if(v->audio) 231 if(v->audio)
231 return -EINVAL; 232 return -EINVAL;
232 az->curvol=v->volume; 233 az->curvol=v->volume;
233 234
234 az->stereo=(v->mode&VIDEO_SOUND_STEREO)?1:0; 235 az->stereo=(v->mode&VIDEO_SOUND_STEREO)?1:0;
235 if(v->flags&VIDEO_AUDIO_MUTE) 236 if(v->flags&VIDEO_AUDIO_MUTE)
236 az_setvol(az,0); 237 az_setvol(az,0);
237 else 238 else
238 az_setvol(az,az->curvol); 239 az_setvol(az,az->curvol);
@@ -277,7 +278,7 @@ static int __init aztech_init(void)
277 return -EINVAL; 278 return -EINVAL;
278 } 279 }
279 280
280 if (!request_region(io, 2, "aztech")) 281 if (!request_region(io, 2, "aztech"))
281 { 282 {
282 printk(KERN_ERR "aztech: port 0x%x already in use\n", io); 283 printk(KERN_ERR "aztech: port 0x%x already in use\n", io);
283 return -EBUSY; 284 return -EBUSY;
@@ -285,13 +286,13 @@ static int __init aztech_init(void)
285 286
286 mutex_init(&lock); 287 mutex_init(&lock);
287 aztech_radio.priv=&aztech_unit; 288 aztech_radio.priv=&aztech_unit;
288 289
289 if(video_register_device(&aztech_radio, VFL_TYPE_RADIO, radio_nr)==-1) 290 if(video_register_device(&aztech_radio, VFL_TYPE_RADIO, radio_nr)==-1)
290 { 291 {
291 release_region(io,2); 292 release_region(io,2);
292 return -EINVAL; 293 return -EINVAL;
293 } 294 }
294 295
295 printk(KERN_INFO "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n"); 296 printk(KERN_INFO "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n");
296 /* mute card - prevents noisy bootups */ 297 /* mute card - prevents noisy bootups */
297 outb (0, io); 298 outb (0, io);