diff options
Diffstat (limited to 'drivers/media/radio/miropcm20-rds.c')
-rw-r--r-- | drivers/media/radio/miropcm20-rds.c | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/drivers/media/radio/miropcm20-rds.c b/drivers/media/radio/miropcm20-rds.c deleted file mode 100644 index 3e840f74d45c..000000000000 --- a/drivers/media/radio/miropcm20-rds.c +++ /dev/null | |||
@@ -1,136 +0,0 @@ | |||
1 | /* MiroSOUND PCM20 radio rds interface driver | ||
2 | * (c) 2001 Robert Siemer <Robert.Siemer@gmx.de> | ||
3 | * Thanks to Fred Seidel. See miropcm20-rds-core.c for further information. | ||
4 | */ | ||
5 | |||
6 | /* Revision history: | ||
7 | * | ||
8 | * 2001-04-18 Robert Siemer <Robert.Siemer@gmx.de> | ||
9 | * separate file for user interface driver | ||
10 | */ | ||
11 | |||
12 | #include <linux/module.h> | ||
13 | #include <linux/init.h> | ||
14 | #include <linux/slab.h> | ||
15 | #include <linux/smp_lock.h> | ||
16 | #include <linux/fs.h> | ||
17 | #include <linux/miscdevice.h> | ||
18 | #include <linux/delay.h> | ||
19 | #include <asm/uaccess.h> | ||
20 | #include "miropcm20-rds-core.h" | ||
21 | |||
22 | static char * text_buffer; | ||
23 | static int rds_users; | ||
24 | |||
25 | |||
26 | static int rds_f_open(struct inode *in, struct file *fi) | ||
27 | { | ||
28 | if (rds_users) | ||
29 | return -EBUSY; | ||
30 | |||
31 | lock_kernel(); | ||
32 | rds_users++; | ||
33 | if ((text_buffer=kmalloc(66, GFP_KERNEL)) == 0) { | ||
34 | rds_users--; | ||
35 | printk(KERN_NOTICE "aci-rds: Out of memory by open()...\n"); | ||
36 | unlock_kernel(); | ||
37 | return -ENOMEM; | ||
38 | } | ||
39 | |||
40 | unlock_kernel(); | ||
41 | return 0; | ||
42 | } | ||
43 | |||
44 | static int rds_f_release(struct inode *in, struct file *fi) | ||
45 | { | ||
46 | kfree(text_buffer); | ||
47 | |||
48 | rds_users--; | ||
49 | return 0; | ||
50 | } | ||
51 | |||
52 | static void print_matrix(char *ch, char out[]) | ||
53 | { | ||
54 | int j; | ||
55 | |||
56 | for (j=7; j>=0; j--) { | ||
57 | out[7-j] = ((*ch >> j) & 0x1) + '0'; | ||
58 | } | ||
59 | } | ||
60 | |||
61 | static ssize_t rds_f_read(struct file *file, char __user *buffer, size_t length, loff_t *offset) | ||
62 | { | ||
63 | // i = sprintf(text_buffer, "length: %d, offset: %d\n", length, *offset); | ||
64 | |||
65 | char c; | ||
66 | char bits[8]; | ||
67 | |||
68 | msleep(2000); | ||
69 | aci_rds_cmd(RDS_STATUS, &c, 1); | ||
70 | print_matrix(&c, bits); | ||
71 | if (copy_to_user(buffer, bits, 8)) | ||
72 | return -EFAULT; | ||
73 | |||
74 | /* if ((c >> 3) & 1) { | ||
75 | aci_rds_cmd(RDS_STATIONNAME, text_buffer+1, 8); | ||
76 | text_buffer[0] = ' ' ; | ||
77 | text_buffer[9] = '\n'; | ||
78 | return copy_to_user(buffer+8, text_buffer, 10) ? -EFAULT: 18; | ||
79 | } | ||
80 | */ | ||
81 | /* if ((c >> 6) & 1) { | ||
82 | aci_rds_cmd(RDS_PTYTATP, &c, 1); | ||
83 | if ( c & 1) | ||
84 | sprintf(text_buffer, " M"); | ||
85 | else | ||
86 | sprintf(text_buffer, " S"); | ||
87 | if ((c >> 1) & 1) | ||
88 | sprintf(text_buffer+2, " TA"); | ||
89 | else | ||
90 | sprintf(text_buffer+2, " --"); | ||
91 | if ((c >> 7) & 1) | ||
92 | sprintf(text_buffer+5, " TP"); | ||
93 | else | ||
94 | sprintf(text_buffer+5, " --"); | ||
95 | sprintf(text_buffer+8, " %2d\n", (c >> 2) & 0x1f); | ||
96 | return copy_to_user(buffer+8, text_buffer, 12) ? -EFAULT: 20; | ||
97 | } | ||
98 | */ | ||
99 | |||
100 | if ((c >> 4) & 1) { | ||
101 | aci_rds_cmd(RDS_TEXT, text_buffer, 65); | ||
102 | text_buffer[0] = ' ' ; | ||
103 | text_buffer[65] = '\n'; | ||
104 | return copy_to_user(buffer+8, text_buffer,66) ? -EFAULT : 66+8; | ||
105 | } else { | ||
106 | put_user('\n', buffer+8); | ||
107 | return 9; | ||
108 | } | ||
109 | } | ||
110 | |||
111 | static const struct file_operations rds_fops = { | ||
112 | .owner = THIS_MODULE, | ||
113 | .read = rds_f_read, | ||
114 | .open = rds_f_open, | ||
115 | .release = rds_f_release | ||
116 | }; | ||
117 | |||
118 | static struct miscdevice rds_miscdev = { | ||
119 | .minor = MISC_DYNAMIC_MINOR, | ||
120 | .name = "radiotext", | ||
121 | .fops = &rds_fops, | ||
122 | }; | ||
123 | |||
124 | static int __init miropcm20_rds_init(void) | ||
125 | { | ||
126 | return misc_register(&rds_miscdev); | ||
127 | } | ||
128 | |||
129 | static void __exit miropcm20_rds_cleanup(void) | ||
130 | { | ||
131 | misc_deregister(&rds_miscdev); | ||
132 | } | ||
133 | |||
134 | module_init(miropcm20_rds_init); | ||
135 | module_exit(miropcm20_rds_cleanup); | ||
136 | MODULE_LICENSE("GPL"); | ||