cd354f1ae7
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
132 lines
2.8 KiB
C
132 lines
2.8 KiB
C
/* MiroSOUND PCM20 radio rds interface driver
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* (c) 2001 Robert Siemer <Robert.Siemer@gmx.de>
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* Thanks to Fred Seidel. See miropcm20-rds-core.c for further information.
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*/
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/* Revision history:
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*
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* 2001-04-18 Robert Siemer <Robert.Siemer@gmx.de>
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* separate file for user interface driver
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/fs.h>
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#include <linux/miscdevice.h>
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#include <linux/delay.h>
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#include <asm/uaccess.h>
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#include "miropcm20-rds-core.h"
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static char * text_buffer;
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static int rds_users = 0;
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static int rds_f_open(struct inode *in, struct file *fi)
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{
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if (rds_users)
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return -EBUSY;
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rds_users++;
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if ((text_buffer=kmalloc(66, GFP_KERNEL)) == 0) {
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rds_users--;
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printk(KERN_NOTICE "aci-rds: Out of memory by open()...\n");
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return -ENOMEM;
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}
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return 0;
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}
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static int rds_f_release(struct inode *in, struct file *fi)
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{
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kfree(text_buffer);
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rds_users--;
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return 0;
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}
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static void print_matrix(char *ch, char out[])
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{
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int j;
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for (j=7; j>=0; j--) {
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out[7-j] = ((*ch >> j) & 0x1) + '0';
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}
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}
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static ssize_t rds_f_read(struct file *file, char __user *buffer, size_t length, loff_t *offset)
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{
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// i = sprintf(text_buffer, "length: %d, offset: %d\n", length, *offset);
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char c;
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char bits[8];
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msleep(2000);
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aci_rds_cmd(RDS_STATUS, &c, 1);
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print_matrix(&c, bits);
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if (copy_to_user(buffer, bits, 8))
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return -EFAULT;
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/* if ((c >> 3) & 1) {
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aci_rds_cmd(RDS_STATIONNAME, text_buffer+1, 8);
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text_buffer[0] = ' ' ;
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text_buffer[9] = '\n';
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return copy_to_user(buffer+8, text_buffer, 10) ? -EFAULT: 18;
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}
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*/
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/* if ((c >> 6) & 1) {
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aci_rds_cmd(RDS_PTYTATP, &c, 1);
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if ( c & 1)
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sprintf(text_buffer, " M");
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else
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sprintf(text_buffer, " S");
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if ((c >> 1) & 1)
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sprintf(text_buffer+2, " TA");
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else
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sprintf(text_buffer+2, " --");
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if ((c >> 7) & 1)
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sprintf(text_buffer+5, " TP");
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else
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sprintf(text_buffer+5, " --");
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sprintf(text_buffer+8, " %2d\n", (c >> 2) & 0x1f);
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return copy_to_user(buffer+8, text_buffer, 12) ? -EFAULT: 20;
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}
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*/
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if ((c >> 4) & 1) {
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aci_rds_cmd(RDS_TEXT, text_buffer, 65);
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text_buffer[0] = ' ' ;
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text_buffer[65] = '\n';
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return copy_to_user(buffer+8, text_buffer,66) ? -EFAULT : 66+8;
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} else {
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put_user('\n', buffer+8);
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return 9;
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}
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}
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static const struct file_operations rds_fops = {
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.owner = THIS_MODULE,
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.read = rds_f_read,
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.open = rds_f_open,
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.release = rds_f_release
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};
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static struct miscdevice rds_miscdev = {
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.minor = MISC_DYNAMIC_MINOR,
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.name = "radiotext",
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.fops = &rds_fops,
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};
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static int __init miropcm20_rds_init(void)
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{
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return misc_register(&rds_miscdev);
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}
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static void __exit miropcm20_rds_cleanup(void)
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{
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misc_deregister(&rds_miscdev);
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}
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module_init(miropcm20_rds_init);
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module_exit(miropcm20_rds_cleanup);
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MODULE_LICENSE("GPL");
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