diff options
Diffstat (limited to 'drivers/net/irda/litelink.c')
| -rw-r--r-- | drivers/net/irda/litelink.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/drivers/net/irda/litelink.c b/drivers/net/irda/litelink.c deleted file mode 100644 index 7db11431d0f4..000000000000 --- a/drivers/net/irda/litelink.c +++ /dev/null @@ -1,179 +0,0 @@ -/********************************************************************* - * - * Filename: litelink.c - * Version: 1.1 - * Description: Driver for the Parallax LiteLink dongle - * Status: Stable - * Author: Dag Brattli <dagb@cs.uit.no> - * Created at: Fri May 7 12:50:33 1999 - * Modified at: Fri Dec 17 09:14:23 1999 - * Modified by: Dag Brattli <dagb@cs.uit.no> - * - * Copyright (c) 1999 Dag Brattli, All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - ********************************************************************/ - -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/tty.h> -#include <linux/init.h> - -#include <net/irda/irda.h> -#include <net/irda/irda_device.h> - -#define MIN_DELAY 25 /* 15 us, but wait a little more to be sure */ -#define MAX_DELAY 10000 /* 1 ms */ - -static void litelink_open(dongle_t *self, struct qos_info *qos); -static void litelink_close(dongle_t *self); -static int litelink_change_speed(struct irda_task *task); -static int litelink_reset(struct irda_task *task); - -/* These are the baudrates supported */ -static __u32 baud_rates[] = { 115200, 57600, 38400, 19200, 9600 }; - -static struct dongle_reg dongle = { - .type = IRDA_LITELINK_DONGLE, - .open = litelink_open, - .close = litelink_close, - .reset = litelink_reset, - .change_speed = litelink_change_speed, - .owner = THIS_MODULE, -}; - -static int __init litelink_init(void) -{ - return irda_device_register_dongle(&dongle); -} - -static void __exit litelink_cleanup(void) -{ - irda_device_unregister_dongle(&dongle); -} - -static void litelink_open(dongle_t *self, struct qos_info *qos) -{ - qos->baud_rate.bits &= IR_9600|IR_19200|IR_38400|IR_57600|IR_115200; - qos->min_turn_time.bits = 0x7f; /* Needs 0.01 ms */ -} - -static void litelink_close(dongle_t *self) -{ - /* Power off dongle */ - self->set_dtr_rts(self->dev, FALSE, FALSE); -} - -/* - * Function litelink_change_speed (task) - * - * Change speed of the Litelink dongle. To cycle through the available - * baud rates, pulse RTS low for a few ms. - */ -static int litelink_change_speed(struct irda_task *task) -{ - dongle_t *self = (dongle_t *) task->instance; - __u32 speed = (__u32) task->param; - int i; - - /* Clear RTS to reset dongle */ - self->set_dtr_rts(self->dev, TRUE, FALSE); - - /* Sleep a minimum of 15 us */ - udelay(MIN_DELAY); - - /* Go back to normal mode */ - self->set_dtr_rts(self->dev, TRUE, TRUE); - - /* Sleep a minimum of 15 us */ - udelay(MIN_DELAY); - - /* Cycle through avaiable baudrates until we reach the correct one */ - for (i=0; i<5 && baud_rates[i] != speed; i++) { - /* Set DTR, clear RTS */ - self->set_dtr_rts(self->dev, FALSE, TRUE); - - /* Sleep a minimum of 15 us */ - udelay(MIN_DELAY); - - /* Set DTR, Set RTS */ - self->set_dtr_rts(self->dev, TRUE, TRUE); - - /* Sleep a minimum of 15 us */ - udelay(MIN_DELAY); - } - irda_task_next_state(task, IRDA_TASK_DONE); - - return 0; -} - -/* - * Function litelink_reset (task) - * - * Reset the Litelink type dongle. - * - */ -static int litelink_reset(struct irda_task *task) -{ - dongle_t *self = (dongle_t *) task->instance; - - /* Power on dongle */ - self->set_dtr_rts(self->dev, TRUE, TRUE); - - /* Sleep a minimum of 15 us */ - udelay(MIN_DELAY); - - /* Clear RTS to reset dongle */ - self->set_dtr_rts(self->dev, TRUE, FALSE); - - /* Sleep a minimum of 15 us */ - udelay(MIN_DELAY); - - /* Go back to normal mode */ - self->set_dtr_rts(self->dev, TRUE, TRUE); - - /* Sleep a minimum of 15 us */ - udelay(MIN_DELAY); - - /* This dongles speed defaults to 115200 bps */ - self->speed = 115200; - - irda_task_next_state(task, IRDA_TASK_DONE); - - return 0; -} - -MODULE_AUTHOR("Dag Brattli <dagb@cs.uit.no>"); -MODULE_DESCRIPTION("Parallax Litelink dongle driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("irda-dongle-5"); /* IRDA_LITELINK_DONGLE */ - -/* - * Function init_module (void) - * - * Initialize Litelink module - * - */ -module_init(litelink_init); - -/* - * Function cleanup_module (void) - * - * Cleanup Litelink module - * - */ -module_exit(litelink_cleanup); |