/* Called by modules package when installing the driver
* or by kernel during the initialization phase
*/
static int __init ftape_init(void)
{
TRACE_FUN(ft_t_flow);
#ifdef MODULE
#ifndef CONFIG_FT_NO_TRACE_AT_ALL
if (ft_tracing != -1) {
ftape_tracing = ft_tracing;
}
#endif
printk(KERN_INFO FTAPE_VERSION "\n");
if (TRACE_LEVEL >= ft_t_info) {
printk(
KERN_INFO "(c) 1993-1996 Bas Laarhoven ([email protected])\n"
KERN_INFO "(c) 1995-1996 Kai Harrekilde-Petersen ([email protected])\n"
KERN_INFO "(c) 1996-1997 Claus-Justus Heine ([email protected])\n"
KERN_INFO "QIC-117 driver for QIC-40/80/3010/3020 floppy tape drives\n"
KERN_INFO "Compiled for Linux version %s\n", UTS_RELEASE);
}
#else /* !MODULE */
/* print a short no-nonsense boot message */
printk(KERN_INFO FTAPE_VERSION " for Linux " UTS_RELEASE "\n");
#endif /* MODULE */
TRACE(ft_t_info, "installing QIC-117 floppy tape hardware drive ... ");
TRACE(ft_t_info, "ftape_init @ 0x%p", ftape_init);
/* Allocate the DMA buffers. They are deallocated at cleanup() time.
*/
#if TESTING
#ifdef MODULE
while (ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS) < 0) {
ftape_sleep(FT_SECOND/20);
if (signal_pending(current)) {
(void)ftape_set_nr_buffers(0);
TRACE(ft_t_bug,
"Killed by signal while allocating buffers.");
TRACE_ABORT(-EINTR,
ft_t_bug, "Free up memory and retry");
}
}
#else
TRACE_CATCH(ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS),
(void)ftape_set_nr_buffers(0));
#endif
#else
TRACE_CATCH(ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS),
(void)ftape_set_nr_buffers(0));
#endif
ft_drive_sel = -1;
ft_failure = 1; /* inhibit any operation but open */
ftape_udelay_calibrate(); /* must be before fdc_wait_calibrate ! */
fdc_wait_calibrate();
#if defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS)
(void)ftape_proc_init();
#endif
#ifdef CONFIG_ZFTAPE
(void)zft_init();
#endif
TRACE_EXIT 0;
}
int ftape_init(void)
{
int n;
int order;
TRACE_FUN(5, "ftape_init");
#ifdef MODULE
printk(KERN_INFO "ftape-2.08 960314\n"
KERN_INFO " (c) 1993-1995 Bas Laarhoven ([email protected])\n"
KERN_INFO " (c) 1995-1996 Kai Harrekilde-Petersen ([email protected])\n"
KERN_INFO " QIC-117 driver for QIC-40/80/3010/3020 tape drives\n"
KERN_INFO " Compiled for kernel version %s"
#ifdef MODVERSIONS
" with versioned symbols"
#endif
"\n", kernel_version);
#else /* !MODULE */
/* print a short no-nonsense boot message */
printk("ftape-2.08 960314 for Linux 1.3.70\n");
#endif /* MODULE */
TRACE(3, "installing QIC-117 ftape driver...");
if (register_chrdev(QIC117_TAPE_MAJOR, "ft", &ftape_cdev)) {
TRACE(1, "register_chrdev failed");
TRACE_EXIT;
return -EIO;
}
TRACEx1(3, "ftape_init @ 0x%p", ftape_init);
/*
* Allocate the DMA buffers. They are deallocated at cleanup() time.
*/
order = __get_order(BUFF_SIZE);
for (n = 0; n < NR_BUFFERS; n++) {
tape_buffer[n] = (byte *) dmaalloc(order);
if (!tape_buffer[n]) {
TRACE(1, "dmaalloc() failed");
for (n = 0; n < NR_BUFFERS; n++) {
if (tape_buffer[n]) {
dmafree(tape_buffer[n], order);
tape_buffer[n] = NULL;
}
}
current->blocked = old_sigmask; /* restore mask */
if (unregister_chrdev(QIC117_TAPE_MAJOR, "ft") != 0) {
TRACE(3, "unregister_chrdev failed");
}
TRACE_EXIT;
return -ENOMEM;
} else {
TRACEx2(3, "dma-buffer #%d @ %p", n, tape_buffer[n]);
}
}
busy_flag = 0;
ftape_unit = -1;
ftape_failure = 1; /* inhibit any operation but open */
udelay_calibrate(); /* must be before fdc_wait_calibrate ! */
fdc_wait_calibrate();
TRACE_EXIT;
#ifdef MODULE
register_symtab(0); /* remove global ftape symbols */
#endif
return 0;
}
