static int uart6850_open(int dev, int mode,
void (*input) (int dev, unsigned char data),
void (*output) (int dev)
)
{
if (uart6850_opened)
{
#ifdef CONFIG_DEBUG_PRINTK
/* printk("Midi6850: Midi busy\n");*/
#else
/* ;
#endif
return -EBUSY;
};
uart6850_cmd(UART_RESET);
uart6850_input_loop();
midi_input_intr = input;
uart6850_opened = mode;
poll_uart6850(0); /*
* Enable input polling
*/
return 0;
}
static void uart6850_close(int dev)
{
uart6850_cmd(UART_MODE_ON);
del_timer(&uart6850_timer);
uart6850_opened = 0;
}
static void __init attach_uart6850(struct address_info *hw_config)
{
int ok, timeout;
unsigned long flags;
if (!uart6850_detected)
return;
if ((my_dev = sound_alloc_mididev()) == -1)
{
printk(KERN_INFO "uart6850: Too many midi devices detected\n");
return;
}
uart6850_base = hw_config->io_base;
uart6850_osp = hw_config->osp;
uart6850_irq = hw_config->irq;
spin_lock_irqsave(&lock,flags);
for (timeout = 30000; timeout > 0 && !output_ready(); timeout--); /*
* Wait
*/
uart6850_cmd(UART_MODE_ON);
ok = 1;
spin_unlock_irqrestore(&lock,flags);
conf_printf("6850 Midi Interface", hw_config);
std_midi_synth.midi_dev = my_dev;
hw_config->slots[4] = my_dev;
midi_devs[my_dev] = &uart6850_operations;
sequencer_init();
}
static void
uart6850_close (int dev)
{
uart6850_cmd (UART_MODE_ON);
uart6850_opened = 0;
}
static int uart6850_open(int dev, int mode,
void (*input) (int dev, unsigned char data),
void (*output) (int dev)
)
{
if (uart6850_opened)
{
/* printk("Midi6850: Midi busy\n");*/
return -EBUSY;
};
uart6850_cmd(UART_RESET);
uart6850_input_loop();
midi_input_intr = input;
uart6850_opened = mode;
poll_uart6850(0); /*
* Enable input polling
*/
return 0;
}
long
attach_uart6850 (long mem_start, struct address_info *hw_config)
{
int ok, timeout;
unsigned long flags;
if (num_midis >= MAX_MIDI_DEV)
{
printk ("Sound: Too many midi devices detected\n");
return mem_start;
}
uart6850_base = hw_config->io_base;
uart6850_irq = hw_config->irq;
if (!uart6850_detected)
return RET_ERROR (EIO);
DISABLE_INTR (flags);
for (timeout = 30000; timeout < 0 && !output_ready (); timeout--); /*
* Wait
*/
uart6850_cmd (UART_MODE_ON);
ok = 1;
RESTORE_INTR (flags);
#if defined(__FreeBSD__)
printk ("uart0: <6850 Midi Interface>");
#else
printk (" <6850 Midi Interface>");
#endif
std_midi_synth.midi_dev = my_dev = num_midis;
midi_devs[num_midis++] = &uart6850_operations;
return mem_start;
}
static void uart6850_close(int dev)
{
uart6850_cmd(UART_MODE_ON);
del_timer(&uart6850_timer);
uart6850_opened = 0;
}
