Example #1
0
/*
 * 3215 console initialization code called from console_init().
 * NOTE: This is called before kmalloc is available.
 */
static int __init
con3215_init(void)
{
	struct ccw_device *cdev;
	struct raw3215_info *raw;
	struct raw3215_req *req;
	int i;

	/* Check if 3215 is to be the console */
	if (!CONSOLE_IS_3215)
		return -ENODEV;

	/* Set the console mode for VM */
	if (MACHINE_IS_VM) {
		cpcmd("TERM CONMODE 3215", NULL, 0);
		cpcmd("TERM AUTOCR OFF", NULL, 0);
	}

	/* allocate 3215 request structures */
	raw3215_freelist = NULL;
	spin_lock_init(&raw3215_freelist_lock);
	for (i = 0; i < NR_3215_REQ; i++) {
		req = (struct raw3215_req *) alloc_bootmem_low(sizeof(struct raw3215_req));
		req->next = raw3215_freelist;
		raw3215_freelist = req;
	}

	cdev = ccw_device_probe_console();
	if (!cdev)
		return -ENODEV;

	raw3215[0] = raw = (struct raw3215_info *)
		alloc_bootmem_low(sizeof(struct raw3215_info));
	memset(raw, 0, sizeof(struct raw3215_info));
	raw->buffer = (char *) alloc_bootmem_low(RAW3215_BUFFER_SIZE);
	raw->inbuf = (char *) alloc_bootmem_low(RAW3215_INBUF_SIZE);
	raw->cdev = cdev;
	raw->lock = get_ccwdev_lock(cdev);
	cdev->dev.driver_data = raw;
	cdev->handler = raw3215_irq;

	raw->flags |= RAW3215_FIXED;
	tasklet_init(&raw->tasklet,
		     (void (*)(unsigned long)) raw3215_tasklet,
		     (unsigned long) raw);
	init_waitqueue_head(&raw->empty_wait);

	/* Request the console irq */
	if (raw3215_startup(raw) != 0) {
		free_bootmem((unsigned long) raw->inbuf, RAW3215_INBUF_SIZE);
		free_bootmem((unsigned long) raw->buffer, RAW3215_BUFFER_SIZE);
		free_bootmem((unsigned long) raw, sizeof(struct raw3215_info));
		raw3215[0] = NULL;
		printk("Couldn't find a 3215 console device\n");
		return -ENODEV;
	}
	register_console(&con3215);
	return 0;
}
/*
 * 3215 console initialization code called from console_init().
 * NOTE: This is called before kmalloc is available.
 */
void __init con3215_init(void)
{
	raw3215_info *raw;
	raw3215_req *req;
	int irq;
	int i;

	/* Check if 3215 is to be the console */
	if (!CONSOLE_IS_3215)
		return;
	irq = raw3215_find_dev(0);

	/* Set the console mode for VM */
	if (MACHINE_IS_VM) {
		cpcmd("TERM CONMODE 3215", NULL, 0);
		cpcmd("TERM AUTOCR OFF", NULL, 0);
	}

	/* allocate 3215 request structures */
	raw3215_freelist = NULL;
	spin_lock_init(&raw3215_freelist_lock);
	for (i = 0; i < NR_3215_REQ; i++) {
                req = (raw3215_req *) alloc_bootmem_low(sizeof(raw3215_req));
		req->next = raw3215_freelist;
		raw3215_freelist = req;
	}

	ctrlchar_init();

#ifdef CONFIG_TN3215_CONSOLE
        raw3215[0] = raw = (raw3215_info *)
                alloc_bootmem_low(sizeof(raw3215_info));
	memset(raw, 0, sizeof(raw3215_info));
        raw->buffer = (char *) alloc_bootmem_low(RAW3215_BUFFER_SIZE);
        raw->inbuf = (char *) alloc_bootmem_low(RAW3215_INBUF_SIZE);

	/* Find the first console */
	raw->irq = raw3215_find_dev(0);
	raw->flags |= RAW3215_FIXED;
	raw->tqueue.routine = raw3215_softint;
	raw->tqueue.data = raw;
        init_waitqueue_head(&raw->empty_wait);

	/* Request the console irq */
	if ( raw3215_startup(raw) != 0 )
		raw->irq = -1;

	if (raw->irq != -1) {
		register_console(&con3215);
	} else {
                free_bootmem((unsigned long) raw->inbuf, RAW3215_INBUF_SIZE);
                free_bootmem((unsigned long) raw->buffer, RAW3215_BUFFER_SIZE);
                free_bootmem((unsigned long) raw, sizeof(raw3215_info));
		raw3215[0] = NULL;
		printk("Couldn't find a 3215 console device\n");
	}
#endif
}
Example #3
0
static void __init conmode_default(void)
{
    char query_buffer[1024];
    char *ptr;

    if (MACHINE_IS_VM) {
        cpcmd("QUERY CONSOLE", query_buffer, 1024, NULL);
        console_devno = simple_strtoul(query_buffer + 5, NULL, 16);
        ptr = strstr(query_buffer, "SUBCHANNEL =");
        console_irq = simple_strtoul(ptr + 13, NULL, 16);
        cpcmd("QUERY TERM", query_buffer, 1024, NULL);
        ptr = strstr(query_buffer, "CONMODE");
        /*
         * Set the conmode to 3215 so that the device recognition
         * will set the cu_type of the console to 3215. If the
         * conmode is 3270 and we don't set it back then both
         * 3215 and the 3270 driver will try to access the console
         * device (3215 as console and 3270 as normal tty).
         */
        cpcmd("TERM CONMODE 3215", NULL, 0, NULL);
        if (ptr == NULL) {
#if defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE)
            SET_CONSOLE_SCLP;
#endif
            return;
        }
        if (strncmp(ptr + 8, "3270", 4) == 0) {
#if defined(CONFIG_TN3270_CONSOLE)
            SET_CONSOLE_3270;
#elif defined(CONFIG_TN3215_CONSOLE)
            SET_CONSOLE_3215;
#elif defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE)
            SET_CONSOLE_SCLP;
#endif
        } else if (strncmp(ptr + 8, "3215", 4) == 0) {
#if defined(CONFIG_TN3215_CONSOLE)
            SET_CONSOLE_3215;
#elif defined(CONFIG_TN3270_CONSOLE)
            SET_CONSOLE_3270;
#elif defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE)
            SET_CONSOLE_SCLP;
#endif
        }
    } else if (MACHINE_IS_KVM) {
        if (sclp.has_vt220 && IS_ENABLED(CONFIG_SCLP_VT220_CONSOLE))
            SET_CONSOLE_VT220;
        else if (sclp.has_linemode && IS_ENABLED(CONFIG_SCLP_CONSOLE))
            SET_CONSOLE_SCLP;
        else
            SET_CONSOLE_HVC;
    } else {
#if defined(CONFIG_SCLP_CONSOLE) || defined(CONFIG_SCLP_VT220_CONSOLE)
        SET_CONSOLE_SCLP;
#endif
    }
}
Example #4
0
/*
 * 3215 console initialization code called from console_init().
 */
static int __init con3215_init(void)
{
	struct ccw_device *cdev;
	struct raw3215_info *raw;
	struct raw3215_req *req;
	int i;

	/* Check if 3215 is to be the console */
	if (!CONSOLE_IS_3215)
		return -ENODEV;

	/* Set the console mode for VM */
	if (MACHINE_IS_VM) {
		cpcmd("TERM CONMODE 3215", NULL, 0, NULL);
		cpcmd("TERM AUTOCR OFF", NULL, 0, NULL);
	}

	/* allocate 3215 request structures */
	raw3215_freelist = NULL;
	spin_lock_init(&raw3215_freelist_lock);
	for (i = 0; i < NR_3215_REQ; i++) {
		req = kzalloc(sizeof(struct raw3215_req), GFP_KERNEL | GFP_DMA);
		if (!req)
			return -ENOMEM;
		req->next = raw3215_freelist;
		raw3215_freelist = req;
	}

	cdev = ccw_device_create_console(&raw3215_ccw_driver);
	if (IS_ERR(cdev))
		return -ENODEV;

	raw3215[0] = raw = raw3215_alloc_info();
	raw->cdev = cdev;
	dev_set_drvdata(&cdev->dev, raw);
	cdev->handler = raw3215_irq;

	raw->flags |= RAW3215_FIXED;
	if (ccw_device_enable_console(cdev)) {
		ccw_device_destroy_console(cdev);
		raw3215_free_info(raw);
		raw3215[0] = NULL;
		return -ENODEV;
	}

	/* Request the console irq */
	if (raw3215_startup(raw) != 0) {
		raw3215_free_info(raw);
		raw3215[0] = NULL;
		return -ENODEV;
	}
	atomic_notifier_chain_register(&panic_notifier_list, &on_panic_nb);
	register_reboot_notifier(&on_reboot_nb);
	register_console(&con3215);
	return 0;
}
Example #5
0
/*
 * 3215 console initialization code called from console_init().
 * NOTE: This is called before kmalloc is available.
 */
static int __init con3215_init(void)
{
	struct ccw_device *cdev;
	struct raw3215_info *raw;
	struct raw3215_req *req;
	int i;

	/* Check if 3215 is to be the console */
	if (!CONSOLE_IS_3215)
		return -ENODEV;

	/* Set the console mode for VM */
	if (MACHINE_IS_VM) {
		cpcmd("TERM CONMODE 3215", NULL, 0, NULL);
		cpcmd("TERM AUTOCR OFF", NULL, 0, NULL);
	}

	/* allocate 3215 request structures */
	raw3215_freelist = NULL;
	spin_lock_init(&raw3215_freelist_lock);
	for (i = 0; i < NR_3215_REQ; i++) {
		req = kzalloc(sizeof(struct raw3215_req), GFP_KERNEL | GFP_DMA);
		req->next = raw3215_freelist;
		raw3215_freelist = req;
	}

	cdev = ccw_device_probe_console();
	if (IS_ERR(cdev))
		return -ENODEV;

	raw3215[0] = raw = (struct raw3215_info *)
		kzalloc(sizeof(struct raw3215_info), GFP_KERNEL | GFP_DMA);
	raw->buffer = kzalloc(RAW3215_BUFFER_SIZE, GFP_KERNEL | GFP_DMA);
	raw->inbuf = kzalloc(RAW3215_INBUF_SIZE, GFP_KERNEL | GFP_DMA);
	raw->cdev = cdev;
	dev_set_drvdata(&cdev->dev, raw);
	cdev->handler = raw3215_irq;

	raw->flags |= RAW3215_FIXED;
	init_waitqueue_head(&raw->empty_wait);
	tasklet_init(&raw->tlet, raw3215_wakeup, (unsigned long) raw);

	/* Request the console irq */
	if (raw3215_startup(raw) != 0) {
		kfree(raw->inbuf);
		kfree(raw->buffer);
		kfree(raw);
		raw3215[0] = NULL;
		return -ENODEV;
	}
	atomic_notifier_chain_register(&panic_notifier_list, &on_panic_nb);
	register_reboot_notifier(&on_reboot_nb);
	register_console(&con3215);
	return 0;
}
Example #6
0
static int vmpanic_notify(struct notifier_block *self, unsigned long event,
			  void *data)
{
	if (MACHINE_IS_VM && strlen(vmpanic_cmd) > 0)
		cpcmd(vmpanic_cmd, NULL, 0, NULL);

	return NOTIFY_OK;
}
Example #7
0
static ssize_t
vmcp_write(struct file *file, const char __user * buff, size_t count,
	   loff_t * ppos)
{
	char *cmd;
	struct vmcp_session *session;

	if (count > 240)
		return -EINVAL;
	cmd = kmalloc(count + 1, GFP_KERNEL);
	if (!cmd)
		return -ENOMEM;
	if (copy_from_user(cmd, buff, count)) {
		kfree(cmd);
		return -EFAULT;
	}
	cmd[count] = '\0';
	session = (struct vmcp_session *)file->private_data;
	if (down_interruptible(&session->mutex)) {
		kfree(cmd);
		return -ERESTARTSYS;
	}
	if (!session->response)
		session->response = (char *)__get_free_pages(GFP_KERNEL
						| __GFP_REPEAT 	| GFP_DMA,
						get_order(session->bufsize));
	if (!session->response) {
		up(&session->mutex);
		kfree(cmd);
		return -ENOMEM;
	}
	debug_text_event(vmcp_debug, 1, cmd);
	session->resp_size = cpcmd(cmd, session->response,
				     session->bufsize,
				     &session->resp_code);
	up(&session->mutex);
	kfree(cmd);
	*ppos = 0;		/* reset the file pointer after a command */
	return count;
}