Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 354 insertions, 0 deletions

diff --git a/drivers/net/irda/ma600.c b/drivers/net/irda/ma600.c
new file mode 100644
index 000000000000..f5e6836667fd
--- /dev/null
+++ b/drivers/net/irda/ma600.c
@@ -0,0 +1,354 @@
+/*********************************************************************
+ *                
+ * 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);
+