summaryrefslogtreecommitdiff
path: root/drivers/net/irda/tekram-sir.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/irda/tekram-sir.c')
-rw-r--r--drivers/net/irda/tekram-sir.c225
1 files changed, 0 insertions, 225 deletions
diff --git a/drivers/net/irda/tekram-sir.c b/drivers/net/irda/tekram-sir.c
deleted file mode 100644
index 9dcf0c103b9d..000000000000
--- a/drivers/net/irda/tekram-sir.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/*********************************************************************
- *
- * Filename: tekram.c
- * Version: 1.3
- * Description: Implementation of the Tekram IrMate IR-210B dongle
- * Status: Experimental.
- * Author: Dag Brattli <dagb@cs.uit.no>
- * Created at: Wed Oct 21 20:02:35 1998
- * Modified at: Sun Oct 27 22:02:38 2002
- * Modified by: Martin Diehl <mad@mdiehl.de>
- *
- * Copyright (c) 1998-1999 Dag Brattli,
- * Copyright (c) 2002 Martin Diehl,
- * 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.
- *
- * Neither Dag Brattli nor University of Tromsø admit liability nor
- * provide warranty for any of this software. This material is
- * provided "AS-IS" and at no charge.
- *
- ********************************************************************/
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-
-#include <net/irda/irda.h>
-
-#include "sir-dev.h"
-
-static int tekram_delay = 150; /* default is 150 ms */
-module_param(tekram_delay, int, 0);
-MODULE_PARM_DESC(tekram_delay, "tekram dongle write complete delay");
-
-static int tekram_open(struct sir_dev *);
-static int tekram_close(struct sir_dev *);
-static int tekram_change_speed(struct sir_dev *, unsigned);
-static int tekram_reset(struct sir_dev *);
-
-#define TEKRAM_115200 0x00
-#define TEKRAM_57600 0x01
-#define TEKRAM_38400 0x02
-#define TEKRAM_19200 0x03
-#define TEKRAM_9600 0x04
-
-#define TEKRAM_PW 0x10 /* Pulse select bit */
-
-static struct dongle_driver tekram = {
- .owner = THIS_MODULE,
- .driver_name = "Tekram IR-210B",
- .type = IRDA_TEKRAM_DONGLE,
- .open = tekram_open,
- .close = tekram_close,
- .reset = tekram_reset,
- .set_speed = tekram_change_speed,
-};
-
-static int __init tekram_sir_init(void)
-{
- if (tekram_delay < 1 || tekram_delay > 500)
- tekram_delay = 200;
- pr_debug("%s - using %d ms delay\n",
- tekram.driver_name, tekram_delay);
- return irda_register_dongle(&tekram);
-}
-
-static void __exit tekram_sir_cleanup(void)
-{
- irda_unregister_dongle(&tekram);
-}
-
-static int tekram_open(struct sir_dev *dev)
-{
- struct qos_info *qos = &dev->qos;
-
- sirdev_set_dtr_rts(dev, TRUE, TRUE);
-
- qos->baud_rate.bits &= IR_9600|IR_19200|IR_38400|IR_57600|IR_115200;
- qos->min_turn_time.bits = 0x01; /* Needs at least 10 ms */
- irda_qos_bits_to_value(qos);
-
- /* irda thread waits 50 msec for power settling */
-
- return 0;
-}
-
-static int tekram_close(struct sir_dev *dev)
-{
- /* Power off dongle */
- sirdev_set_dtr_rts(dev, FALSE, FALSE);
-
- return 0;
-}
-
-/*
- * Function tekram_change_speed (dev, state, speed)
- *
- * Set the speed for the Tekram IRMate 210 type dongle. Warning, this
- * function must be called with a process context!
- *
- * Algorithm
- * 1. clear DTR
- * 2. set RTS, and wait at least 7 us
- * 3. send Control Byte to the IR-210 through TXD to set new baud rate
- * wait until the stop bit of Control Byte is sent (for 9600 baud rate,
- * it takes about 100 msec)
- *
- * [oops, why 100 msec? sending 1 byte (10 bits) takes 1.05 msec
- * - is this probably to compensate for delays in tty layer?]
- *
- * 5. clear RTS (return to NORMAL Operation)
- * 6. wait at least 50 us, new setting (baud rate, etc) takes effect here
- * after
- */
-
-#define TEKRAM_STATE_WAIT_SPEED (SIRDEV_STATE_DONGLE_SPEED + 1)
-
-static int tekram_change_speed(struct sir_dev *dev, unsigned speed)
-{
- unsigned state = dev->fsm.substate;
- unsigned delay = 0;
- u8 byte;
- static int ret = 0;
-
- switch(state) {
- case SIRDEV_STATE_DONGLE_SPEED:
-
- switch (speed) {
- default:
- speed = 9600;
- ret = -EINVAL;
- /* fall thru */
- case 9600:
- byte = TEKRAM_PW|TEKRAM_9600;
- break;
- case 19200:
- byte = TEKRAM_PW|TEKRAM_19200;
- break;
- case 38400:
- byte = TEKRAM_PW|TEKRAM_38400;
- break;
- case 57600:
- byte = TEKRAM_PW|TEKRAM_57600;
- break;
- case 115200:
- byte = TEKRAM_115200;
- break;
- }
-
- /* Set DTR, Clear RTS */
- sirdev_set_dtr_rts(dev, TRUE, FALSE);
-
- /* Wait at least 7us */
- udelay(14);
-
- /* Write control byte */
- sirdev_raw_write(dev, &byte, 1);
-
- dev->speed = speed;
-
- state = TEKRAM_STATE_WAIT_SPEED;
- delay = tekram_delay;
- break;
-
- case TEKRAM_STATE_WAIT_SPEED:
- /* Set DTR, Set RTS */
- sirdev_set_dtr_rts(dev, TRUE, TRUE);
- udelay(50);
- break;
-
- default:
- net_err_ratelimited("%s - undefined state %d\n",
- __func__, state);
- ret = -EINVAL;
- break;
- }
-
- dev->fsm.substate = state;
- return (delay > 0) ? delay : ret;
-}
-
-/*
- * Function tekram_reset (driver)
- *
- * This function resets the tekram dongle. Warning, this function
- * must be called with a process context!!
- *
- * Algorithm:
- * 0. Clear RTS and DTR, and wait 50 ms (power off the IR-210 )
- * 1. clear RTS
- * 2. set DTR, and wait at least 1 ms
- * 3. clear DTR to SPACE state, wait at least 50 us for further
- * operation
- */
-
-static int tekram_reset(struct sir_dev *dev)
-{
- /* Clear DTR, Set RTS */
- sirdev_set_dtr_rts(dev, FALSE, TRUE);
-
- /* Should sleep 1 ms */
- msleep(1);
-
- /* Set DTR, Set RTS */
- sirdev_set_dtr_rts(dev, TRUE, TRUE);
-
- /* Wait at least 50 us */
- udelay(75);
-
- dev->speed = 9600;
-
- return 0;
-}
-
-MODULE_AUTHOR("Dag Brattli <dagb@cs.uit.no>");
-MODULE_DESCRIPTION("Tekram IrMate IR-210B dongle driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("irda-dongle-0"); /* IRDA_TEKRAM_DONGLE */
-
-module_init(tekram_sir_init);
-module_exit(tekram_sir_cleanup);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-08 02:50:12 +0300