Exemplo n.º 1
0
static void __init m32r_sio_init_ports(void)
{
	struct uart_sio_port *up;
	static int first = 1;
	int i;

	if (!first)
		return;
	first = 0;

	for (i = 0, up = m32r_sio_ports; i < UART_NR; i++, up++) {
		up->port.iobase   = old_serial_port[i].port;
		up->port.irq      = irq_canonicalize(old_serial_port[i].irq);
		up->port.uartclk  = BAUD_RATE * 16;
		up->port.flags    = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
		up->port.membase  = 0;
		up->port.iotype   = 0;
		up->port.regshift = 0;
		up->port.ops      = &m32r_sio_pops;
	}
}
Exemplo n.º 2
0
static void __init m32r_sio_init_ports(void)
{
	struct uart_sio_port *up;
	static int first = 1;
	int i;

	if (!first)
		return;
	first = 0;

	for (i = 0, up = m32r_sio_ports; i < ARRAY_SIZE(old_serial_port);
	     i++, up++) {
		up->port.iobase   = old_serial_port[i].port;
		up->port.irq      = irq_canonicalize(old_serial_port[i].irq);
		up->port.uartclk  = old_serial_port[i].baud_base * 16;
		up->port.flags    = old_serial_port[i].flags;
		up->port.membase  = old_serial_port[i].iomem_base;
		up->port.iotype   = old_serial_port[i].io_type;
		up->port.regshift = old_serial_port[i].iomem_reg_shift;
		up->port.ops      = &m32r_sio_pops;
	}
}
Exemplo n.º 3
0
static int __init ac_probe1(int ioaddr, struct net_device *dev)
{
	int i, retval;

	if (!request_region(ioaddr, AC_IO_EXTENT, DRV_NAME))
		return -EBUSY;

	if (inb_p(ioaddr + AC_ID_PORT) == 0xff) {
		retval = -ENODEV;
		goto out;
	}

	if (inl(ioaddr + AC_ID_PORT) != AC_EISA_ID) {
		retval = -ENODEV;
		goto out;
	}

#ifndef final_version
	printk(KERN_DEBUG "AC3200 ethercard configuration register is %#02x,"
		   " EISA ID %02x %02x %02x %02x.\n", inb(ioaddr + AC_CONFIG),
		   inb(ioaddr + AC_ID_PORT + 0), inb(ioaddr + AC_ID_PORT + 1),
		   inb(ioaddr + AC_ID_PORT + 2), inb(ioaddr + AC_ID_PORT + 3));
#endif

	for (i = 0; i < 6; i++)
		dev->dev_addr[i] = inb(ioaddr + AC_SA_PROM + i);

	printk(KERN_DEBUG "AC3200 in EISA slot %d, node %pM",
	       ioaddr/0x1000, dev->dev_addr);
#if 0
	/* Check the vendor ID/prefix. Redundant after checking the EISA ID */
	if (inb(ioaddr + AC_SA_PROM + 0) != AC_ADDR0
		|| inb(ioaddr + AC_SA_PROM + 1) != AC_ADDR1
		|| inb(ioaddr + AC_SA_PROM + 2) != AC_ADDR2 ) {
		printk(", not found (invalid prefix).\n");
		retval = -ENODEV;
		goto out;
	}
#endif

	/* Assign and allocate the interrupt now. */
	if (dev->irq == 0) {
		dev->irq = config2irq(inb(ioaddr + AC_CONFIG));
		printk(", using");
	} else {
		dev->irq = irq_canonicalize(dev->irq);
		printk(", assigning");
	}

	retval = request_irq(dev->irq, ei_interrupt, 0, DRV_NAME, dev);
	if (retval) {
		printk (" nothing! Unable to get IRQ %d.\n", dev->irq);
		goto out1;
	}

	printk(" IRQ %d, %s port\n", dev->irq, port_name[dev->if_port]);

	dev->base_addr = ioaddr;

#ifdef notyet
	if (dev->mem_start)	{		/* Override the value from the board. */
		for (i = 0; i < 7; i++)
			if (addrmap[i] == dev->mem_start)
				break;
		if (i >= 7)
			i = 0;
		outb((inb(ioaddr + AC_CONFIG) & ~7) | i, ioaddr + AC_CONFIG);
	}
#endif

	dev->if_port = inb(ioaddr + AC_CONFIG) >> 6;
	dev->mem_start = config2mem(inb(ioaddr + AC_CONFIG));

	printk("%s: AC3200 at %#3x with %dkB memory at physical address %#lx.\n",
			dev->name, ioaddr, AC_STOP_PG/4, dev->mem_start);

	/*
	 *  BEWARE!! Some dain-bramaged EISA SCUs will allow you to put
	 *  the card mem within the region covered by `normal' RAM  !!!
	 *
	 *  ioremap() will fail in that case.
	 */
	ei_status.mem = ioremap(dev->mem_start, AC_STOP_PG*0x100);
	if (!ei_status.mem) {
		printk(KERN_ERR "ac3200.c: Unable to remap card memory above 1MB !!\n");
		printk(KERN_ERR "ac3200.c: Try using EISA SCU to set memory below 1MB.\n");
		printk(KERN_ERR "ac3200.c: Driver NOT installed.\n");
		retval = -EINVAL;
		goto out1;
	}
	printk("ac3200.c: remapped %dkB card memory to virtual address %p\n",
			AC_STOP_PG/4, ei_status.mem);

	dev->mem_start = (unsigned long)ei_status.mem;
	dev->mem_end = dev->mem_start + (AC_STOP_PG - AC_START_PG)*256;

	ei_status.name = "AC3200";
	ei_status.tx_start_page = AC_START_PG;
	ei_status.rx_start_page = AC_START_PG + TX_PAGES;
	ei_status.stop_page = AC_STOP_PG;
	ei_status.word16 = 1;

	if (ei_debug > 0)
		printk(version);

	ei_status.reset_8390 = &ac_reset_8390;
	ei_status.block_input = &ac_block_input;
	ei_status.block_output = &ac_block_output;
	ei_status.get_8390_hdr = &ac_get_8390_hdr;

	dev->netdev_ops = &ac_netdev_ops;
	NS8390_init(dev, 0);

	retval = register_netdev(dev);
	if (retval)
		goto out2;
	return 0;
out2:
	if (ei_status.reg0)
		iounmap(ei_status.mem);
out1:
	free_irq(dev->irq, dev);
out:
	release_region(ioaddr, AC_IO_EXTENT);
	return retval;
}
Exemplo n.º 4
0
static int uart_set_info(struct tty_struct *tty, struct uart_state *state,
			 struct serial_struct __user *newinfo)
{
	struct serial_struct new_serial;
	struct uart_port *uport = state->uart_port;
	struct tty_port *port = &state->port;
	unsigned long new_port;
	unsigned int change_irq, change_port, closing_wait;
	unsigned int old_custom_divisor, close_delay;
	upf_t old_flags, new_flags;
	int retval = 0;

	if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
		return -EFAULT;

	new_port = new_serial.port;
	if (HIGH_BITS_OFFSET)
		new_port += (unsigned long) new_serial.port_high << HIGH_BITS_OFFSET;

	new_serial.irq = irq_canonicalize(new_serial.irq);
	close_delay = msecs_to_jiffies(new_serial.close_delay * 10);
	closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
			ASYNC_CLOSING_WAIT_NONE :
			msecs_to_jiffies(new_serial.closing_wait * 10);

	mutex_lock(&port->mutex);

	change_irq  = !(uport->flags & UPF_FIXED_PORT)
		&& new_serial.irq != uport->irq;

	change_port = !(uport->flags & UPF_FIXED_PORT)
		&& (new_port != uport->iobase ||
		    (unsigned long)new_serial.iomem_base != uport->mapbase ||
		    new_serial.hub6 != uport->hub6 ||
		    new_serial.io_type != uport->iotype ||
		    new_serial.iomem_reg_shift != uport->regshift ||
		    new_serial.type != uport->type);

	old_flags = uport->flags;
	new_flags = new_serial.flags;
	old_custom_divisor = uport->custom_divisor;

	if (!capable(CAP_SYS_ADMIN)) {
		retval = -EPERM;
		if (change_irq || change_port ||
		    (new_serial.baud_base != uport->uartclk / 16) ||
		    (close_delay != port->close_delay) ||
		    (closing_wait != port->closing_wait) ||
		    (new_serial.xmit_fifo_size &&
		     new_serial.xmit_fifo_size != uport->fifosize) ||
		    (((new_flags ^ old_flags) & ~UPF_USR_MASK) != 0))
			goto exit;
		uport->flags = ((uport->flags & ~UPF_USR_MASK) |
			       (new_flags & UPF_USR_MASK));
		uport->custom_divisor = new_serial.custom_divisor;
		goto check_and_exit;
	}

	if (uport->ops->verify_port)
		retval = uport->ops->verify_port(uport, &new_serial);

	if ((new_serial.irq >= nr_irqs) || (new_serial.irq < 0) ||
	    (new_serial.baud_base < 9600))
		retval = -EINVAL;

	if (retval)
		goto exit;

	if (change_port || change_irq) {
		retval = -EBUSY;

		if (tty_port_users(port) > 1)
			goto exit;

		uart_shutdown(tty, state);
	}

	if (change_port) {
		unsigned long old_iobase, old_mapbase;
		unsigned int old_type, old_iotype, old_hub6, old_shift;

		old_iobase = uport->iobase;
		old_mapbase = uport->mapbase;
		old_type = uport->type;
		old_hub6 = uport->hub6;
		old_iotype = uport->iotype;
		old_shift = uport->regshift;

		if (old_type != PORT_UNKNOWN)
			uport->ops->release_port(uport);

		uport->iobase = new_port;
		uport->type = new_serial.type;
		uport->hub6 = new_serial.hub6;
		uport->iotype = new_serial.io_type;
		uport->regshift = new_serial.iomem_reg_shift;
		uport->mapbase = (unsigned long)new_serial.iomem_base;

		if (uport->type != PORT_UNKNOWN) {
			retval = uport->ops->request_port(uport);
		} else {
			
			retval = 0;
		}

		if (retval && old_type != PORT_UNKNOWN) {
			uport->iobase = old_iobase;
			uport->type = old_type;
			uport->hub6 = old_hub6;
			uport->iotype = old_iotype;
			uport->regshift = old_shift;
			uport->mapbase = old_mapbase;
			retval = uport->ops->request_port(uport);
			if (retval)
				uport->type = PORT_UNKNOWN;

			retval = -EBUSY;
			
			goto exit;
		}
	}

	if (change_irq)
		uport->irq      = new_serial.irq;
	if (!(uport->flags & UPF_FIXED_PORT))
		uport->uartclk  = new_serial.baud_base * 16;
	uport->flags            = (uport->flags & ~UPF_CHANGE_MASK) |
				 (new_flags & UPF_CHANGE_MASK);
	uport->custom_divisor   = new_serial.custom_divisor;
	port->close_delay     = close_delay;
	port->closing_wait    = closing_wait;
	if (new_serial.xmit_fifo_size)
		uport->fifosize = new_serial.xmit_fifo_size;
	if (port->tty)
		port->tty->low_latency =
			(uport->flags & UPF_LOW_LATENCY) ? 1 : 0;

 check_and_exit:
	retval = 0;
	if (uport->type == PORT_UNKNOWN)
		goto exit;
	if (port->flags & ASYNC_INITIALIZED) {
		if (((old_flags ^ uport->flags) & UPF_SPD_MASK) ||
		    old_custom_divisor != uport->custom_divisor) {
			if (uport->flags & UPF_SPD_MASK) {
				char buf[64];
				printk(KERN_NOTICE
				       "%s sets custom speed on %s. This "
				       "is deprecated.\n", current->comm,
				       tty_name(port->tty, buf));
			}
			uart_change_speed(tty, state, NULL);
		}
	} else
		retval = uart_startup(tty, state, 1);
 exit:
	mutex_unlock(&port->mutex);
	return retval;
}