diff options
Diffstat (limited to 'drivers/net/irda/ma600.c')
| -rw-r--r-- | drivers/net/irda/ma600.c | 354 |
1 files changed, 0 insertions, 354 deletions
diff --git a/drivers/net/irda/ma600.c b/drivers/net/irda/ma600.c deleted file mode 100644 index f5e6836..0000000 --- a/drivers/net/irda/ma600.c +++ /dev/null @@ -1,354 +0,0 @@ -/********************************************************************* - * - * Filename: ma600.c - * Version: 0.1 - * Description: Implementation of the MA600 dongle - * Status: Experimental. - * Author: Leung <95Etwl@alumni.ee.ust.hk> http://www.engsvr.ust/~eetwl95 - * Created at: Sat Jun 10 20:02:35 2000 - * Modified at: - * Modified by: - * - * Note: very thanks to Mr. Maru Wang <maru@mobileaction.com.tw> for providing - * information on the MA600 dongle - * - * Copyright (c) 2000 Leung, 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 - * - ********************************************************************/ - -/* define this macro for release version */ -//#define NDEBUG - -#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> - -#ifndef NDEBUG - #undef IRDA_DEBUG - #define IRDA_DEBUG(n, args...) (printk(KERN_DEBUG args)) - - #undef ASSERT - #define ASSERT(expr, func) \ - if(!(expr)) { \ - printk( "Assertion failed! %s,%s,%s,line=%d\n",\ - #expr,__FILE__,__FUNCTION__,__LINE__); \ - func} -#endif - -/* convert hex value to ascii hex */ -static const char hexTbl[] = "0123456789ABCDEF"; - - -static void ma600_open(dongle_t *self, struct qos_info *qos); -static void ma600_close(dongle_t *self); -static int ma600_change_speed(struct irda_task *task); -static int ma600_reset(struct irda_task *task); - -/* control byte for MA600 */ -#define MA600_9600 0x00 -#define MA600_19200 0x01 -#define MA600_38400 0x02 -#define MA600_57600 0x03 -#define MA600_115200 0x04 -#define MA600_DEV_ID1 0x05 -#define MA600_DEV_ID2 0x06 -#define MA600_2400 0x08 - -static struct dongle_reg dongle = { - .type = IRDA_MA600_DONGLE, - .open = ma600_open, - .close = ma600_close, - .reset = ma600_reset, - .change_speed = ma600_change_speed, - .owner = THIS_MODULE, -}; - -static int __init ma600_init(void) -{ - IRDA_DEBUG(2, "%s()\n", __FUNCTION__); - return irda_device_register_dongle(&dongle); -} - -static void __exit ma600_cleanup(void) -{ - IRDA_DEBUG(2, "%s()\n", __FUNCTION__); - irda_device_unregister_dongle(&dongle); -} - -/* - Power on: - (0) Clear RTS and DTR for 1 second - (1) Set RTS and DTR for 1 second - (2) 9600 bps now - Note: assume RTS, DTR are clear before -*/ -static void ma600_open(dongle_t *self, struct qos_info *qos) -{ - IRDA_DEBUG(2, "%s()\n", __FUNCTION__); - - qos->baud_rate.bits &= IR_2400|IR_9600|IR_19200|IR_38400 - |IR_57600|IR_115200; - qos->min_turn_time.bits = 0x01; /* Needs at least 1 ms */ - irda_qos_bits_to_value(qos); - - //self->set_dtr_rts(self->dev, FALSE, FALSE); - // should wait 1 second - - self->set_dtr_rts(self->dev, TRUE, TRUE); - // should wait 1 second -} - -static void ma600_close(dongle_t *self) -{ - IRDA_DEBUG(2, "%s()\n", __FUNCTION__); - - /* Power off dongle */ - self->set_dtr_rts(self->dev, FALSE, FALSE); -} - -static __u8 get_control_byte(__u32 speed) -{ - __u8 byte; - - switch (speed) { - default: - case 115200: - byte = MA600_115200; - break; - case 57600: - byte = MA600_57600; - break; - case 38400: - byte = MA600_38400; - break; - case 19200: - byte = MA600_19200; - break; - case 9600: - byte = MA600_9600; - break; - case 2400: - byte = MA600_2400; - break; - } - - return byte; -} - -/* - * Function ma600_change_speed (dev, state, speed) - * - * Set the speed for the MA600 type dongle. Warning, this - * function must be called with a process context! - * - * Algorithm - * 1. Reset - * 2. clear RTS, set DTR and wait for 1ms - * 3. send Control Byte to the MA600 through TXD to set new baud rate - * wait until the stop bit of Control Byte is sent (for 9600 baud rate, - * it takes about 10 msec) - * 4. set RTS, set DTR (return to NORMAL Operation) - * 5. wait at least 10 ms, new setting (baud rate, etc) takes effect here - * after - */ -static int ma600_change_speed(struct irda_task *task) -{ - dongle_t *self = (dongle_t *) task->instance; - __u32 speed = (__u32) task->param; - static __u8 byte; - __u8 byte_echo; - int ret = 0; - - IRDA_DEBUG(2, "%s()\n", __FUNCTION__); - - ASSERT(task != NULL, return -1;); - - if (self->speed_task && self->speed_task != task) { - IRDA_DEBUG(0, "%s(), busy!\n", __FUNCTION__); - return msecs_to_jiffies(10); - } else { - self->speed_task = task; - } - - switch (task->state) { - case IRDA_TASK_INIT: - case IRDA_TASK_CHILD_INIT: - /* - * Need to reset the dongle and go to 9600 bps before - * programming - */ - if (irda_task_execute(self, ma600_reset, NULL, task, - (void *) speed)) { - /* Dongle need more time to reset */ - irda_task_next_state(task, IRDA_TASK_CHILD_WAIT); - - /* give 1 second to finish */ - ret = msecs_to_jiffies(1000); - } else { - irda_task_next_state(task, IRDA_TASK_CHILD_DONE); - } - break; - - case IRDA_TASK_CHILD_WAIT: - IRDA_WARNING("%s(), resetting dongle timed out!\n", - __FUNCTION__); - ret = -1; - break; - - case IRDA_TASK_CHILD_DONE: - /* Set DTR, Clear RTS */ - self->set_dtr_rts(self->dev, TRUE, FALSE); - - ret = msecs_to_jiffies(1); /* Sleep 1 ms */ - irda_task_next_state(task, IRDA_TASK_WAIT); - break; - - case IRDA_TASK_WAIT: - speed = (__u32) task->param; - byte = get_control_byte(speed); - - /* Write control byte */ - self->write(self->dev, &byte, sizeof(byte)); - - irda_task_next_state(task, IRDA_TASK_WAIT1); - - /* Wait at least 10 ms */ - ret = msecs_to_jiffies(15); - break; - - case IRDA_TASK_WAIT1: - /* Read control byte echo */ - self->read(self->dev, &byte_echo, sizeof(byte_echo)); - - if(byte != byte_echo) { - /* if control byte != echo, I don't know what to do */ - printk(KERN_WARNING "%s() control byte written != read!\n", __FUNCTION__); - printk(KERN_WARNING "control byte = 0x%c%c\n", - hexTbl[(byte>>4)&0x0f], hexTbl[byte&0x0f]); - printk(KERN_WARNING "byte echo = 0x%c%c\n", - hexTbl[(byte_echo>>4) & 0x0f], - hexTbl[byte_echo & 0x0f]); - #ifndef NDEBUG - } else { - IRDA_DEBUG(2, "%s() control byte write read OK\n", __FUNCTION__); - #endif - } - - /* Set DTR, Set RTS */ - self->set_dtr_rts(self->dev, TRUE, TRUE); - - irda_task_next_state(task, IRDA_TASK_WAIT2); - - /* Wait at least 10 ms */ - ret = msecs_to_jiffies(10); - break; - - case IRDA_TASK_WAIT2: - irda_task_next_state(task, IRDA_TASK_DONE); - self->speed_task = NULL; - break; - - default: - IRDA_ERROR("%s(), unknown state %d\n", - __FUNCTION__, task->state); - irda_task_next_state(task, IRDA_TASK_DONE); - self->speed_task = NULL; - ret = -1; - break; - } - return ret; -} - -/* - * Function ma600_reset (driver) - * - * This function resets the ma600 dongle. Warning, this function - * must be called with a process context!! - * - * Algorithm: - * 0. DTR=0, RTS=1 and wait 10 ms - * 1. DTR=1, RTS=1 and wait 10 ms - * 2. 9600 bps now - */ -int ma600_reset(struct irda_task *task) -{ - dongle_t *self = (dongle_t *) task->instance; - int ret = 0; - - IRDA_DEBUG(2, "%s()\n", __FUNCTION__); - - ASSERT(task != NULL, return -1;); - - if (self->reset_task && self->reset_task != task) { - IRDA_DEBUG(0, "%s(), busy!\n", __FUNCTION__); - return msecs_to_jiffies(10); - } else - self->reset_task = task; - - switch (task->state) { - case IRDA_TASK_INIT: - /* Clear DTR and Set RTS */ - self->set_dtr_rts(self->dev, FALSE, TRUE); - irda_task_next_state(task, IRDA_TASK_WAIT1); - ret = msecs_to_jiffies(10); /* Sleep 10 ms */ - break; - case IRDA_TASK_WAIT1: - /* Set DTR and RTS */ - self->set_dtr_rts(self->dev, TRUE, TRUE); - irda_task_next_state(task, IRDA_TASK_WAIT2); - ret = msecs_to_jiffies(10); /* Sleep 10 ms */ - break; - case IRDA_TASK_WAIT2: - irda_task_next_state(task, IRDA_TASK_DONE); - self->reset_task = NULL; - break; - default: - IRDA_ERROR("%s(), unknown state %d\n", - __FUNCTION__, task->state); - irda_task_next_state(task, IRDA_TASK_DONE); - self->reset_task = NULL; - ret = -1; - } - return ret; -} - -MODULE_AUTHOR("Leung <95Etwl@alumni.ee.ust.hk> http://www.engsvr.ust/~eetwl95"); -MODULE_DESCRIPTION("MA600 dongle driver version 0.1"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("irda-dongle-11"); /* IRDA_MA600_DONGLE */ - -/* - * Function init_module (void) - * - * Initialize MA600 module - * - */ -module_init(ma600_init); - -/* - * Function cleanup_module (void) - * - * Cleanup MA600 module - * - */ -module_exit(ma600_cleanup); - |
